staging/atomisp: Add support for the Intel IPU v2

This patch adds support for the Intel IPU v2 as found on Android and IoT
Baytrail-T and Baytrail-CR platforms (those with the IPU PCI mapped). You
will also need the firmware files from your device (Android usually puts
them into /etc) - or you can find them in the downloadable restore/upgrade
kits if you blew them away for some reason.

It may be possible to extend the driver to handle the BYT/T windows
platforms such as the ASUS T100TA. These platforms don't expose the IPU via
the PCI interface but via ACPI buried in the GPU description and with the
camera information somewhere unknown so would need a platform driver
interface adding to the codebase *IFF* the firmware works on such devices.

To get good results you also need a suitable support library such as
libxcam. The camera is intended to be driven from Android so it has a lot of
features that many desktop apps don't fully spport.

In theory all the pieces are there to build it with -DISP2401 and some
differing files to get CherryTrail/T support, but unifying the drivers
properlly is a work in progress.

The IPU driver represents the work of a lot of people within Intel over many
years. It's historical goal was portability rather than Linux upstream. Any
queries about the upstream aimed driver should be sent to me not to the
original authors.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

76 files changed, 9680 insertions, 0 deletions

diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/debug_global.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/debug_global.h
new file mode 100644
index 0000000..076c4ba
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/debug_global.h
@@ -0,0 +1,83 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __DEBUG_GLOBAL_H_INCLUDED__
+#define __DEBUG_GLOBAL_H_INCLUDED__
+
+#include <type_support.h>
+
+#define DEBUG_BUF_SIZE	1024
+#define DEBUG_BUF_MASK	(DEBUG_BUF_SIZE - 1)
+
+#define DEBUG_DATA_ENABLE_ADDR		0x00
+#define DEBUG_DATA_BUF_MODE_ADDR	0x04
+#define DEBUG_DATA_HEAD_ADDR		0x08
+#define DEBUG_DATA_TAIL_ADDR		0x0C
+#define DEBUG_DATA_BUF_ADDR			0x10
+
+#define DEBUG_DATA_ENABLE_DDR_ADDR		0x00
+#define DEBUG_DATA_BUF_MODE_DDR_ADDR	HIVE_ISP_DDR_WORD_BYTES
+#define DEBUG_DATA_HEAD_DDR_ADDR		(2 * HIVE_ISP_DDR_WORD_BYTES)
+#define DEBUG_DATA_TAIL_DDR_ADDR		(3 * HIVE_ISP_DDR_WORD_BYTES)
+#define DEBUG_DATA_BUF_DDR_ADDR			(4 * HIVE_ISP_DDR_WORD_BYTES)
+
+#define DEBUG_BUFFER_ISP_DMEM_ADDR       0x0
+
+/*
+ * Enable HAS_WATCHDOG_SP_THREAD_DEBUG for additional SP thread and
+ * pipe information on watchdog output
+ * #undef HAS_WATCHDOG_SP_THREAD_DEBUG
+ * #define HAS_WATCHDOG_SP_THREAD_DEBUG
+ */
+
+
+/*
+ * The linear buffer mode will accept data until the first
+ * overflow and then stop accepting new data
+ * The circular buffer mode will accept if there is place
+ * and discard the data if the buffer is full
+ */
+typedef enum {
+	DEBUG_BUFFER_MODE_LINEAR = 0,
+	DEBUG_BUFFER_MODE_CIRCULAR,
+	N_DEBUG_BUFFER_MODE
+} debug_buf_mode_t;
+
+struct debug_data_s {
+	uint32_t			enable;
+	uint32_t			bufmode;
+	uint32_t			head;
+	uint32_t			tail;
+	uint32_t			buf[DEBUG_BUF_SIZE];
+};
+
+/* thread.sp.c doesn't have a notion of HIVE_ISP_DDR_WORD_BYTES
+   still one point of control is needed for debug purposes */
+
+#ifdef HIVE_ISP_DDR_WORD_BYTES
+struct debug_data_ddr_s {
+	uint32_t			enable;
+	int8_t				padding1[HIVE_ISP_DDR_WORD_BYTES-sizeof(uint32_t)];
+	uint32_t			bufmode;
+	int8_t				padding2[HIVE_ISP_DDR_WORD_BYTES-sizeof(uint32_t)];
+	uint32_t			head;
+	int8_t				padding3[HIVE_ISP_DDR_WORD_BYTES-sizeof(uint32_t)];
+	uint32_t			tail;
+	int8_t				padding4[HIVE_ISP_DDR_WORD_BYTES-sizeof(uint32_t)];
+	uint32_t			buf[DEBUG_BUF_SIZE];
+};
+#endif
+
+#endif /* __DEBUG_GLOBAL_H_INCLUDED__ */
+
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/dma_global.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/dma_global.h
new file mode 100644
index 0000000..dff6110
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/dma_global.h
@@ -0,0 +1,307 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __DMA_GLOBAL_H_INCLUDED__
+#define __DMA_GLOBAL_H_INCLUDED__
+
+#include <type_support.h>
+
+#define IS_DMA_VERSION_2
+
+#define HIVE_ISP_NUM_DMA_CONNS		3
+#define HIVE_ISP_NUM_DMA_CHANNELS	32
+
+#define N_DMA_CHANNEL_ID	HIVE_ISP_NUM_DMA_CHANNELS
+
+#include "dma_v2_defs.h"
+
+/*
+ * Command token bit mappings
+ *
+ * transfer / config
+ *    param id[4] channel id[5] cmd id[6]
+ *	| b14 .. b11 | b10 ... b6 | b5 ... b0 |
+ *
+ *
+ * fast transfer:
+ *    height[5]     width[8]      width[8]  channel id[5] cmd id[6]
+ *	| b31 .. b26 | b25 .. b18 | b17 .. b11 | b10 ... b6 | b5 ... b0 |
+ *
+ */
+
+#define _DMA_PACKING_SETUP_PARAM	_DMA_V2_PACKING_SETUP_PARAM
+#define _DMA_HEIGHT_PARAM			_DMA_V2_HEIGHT_PARAM
+#define _DMA_STRIDE_A_PARAM			_DMA_V2_STRIDE_A_PARAM
+#define _DMA_ELEM_CROPPING_A_PARAM	_DMA_V2_ELEM_CROPPING_A_PARAM
+#define _DMA_WIDTH_A_PARAM			_DMA_V2_WIDTH_A_PARAM
+#define _DMA_STRIDE_B_PARAM			_DMA_V2_STRIDE_B_PARAM
+#define _DMA_ELEM_CROPPING_B_PARAM	_DMA_V2_ELEM_CROPPING_B_PARAM
+#define _DMA_WIDTH_B_PARAM			_DMA_V2_WIDTH_B_PARAM
+
+#define _DMA_ZERO_EXTEND     _DMA_V2_ZERO_EXTEND
+#define _DMA_SIGN_EXTEND     _DMA_V2_SIGN_EXTEND
+
+
+typedef unsigned int dma_channel;
+
+typedef enum {
+  dma_isp_to_bus_connection = HIVE_DMA_ISP_BUS_CONN,
+  dma_isp_to_ddr_connection = HIVE_DMA_ISP_DDR_CONN,
+  dma_bus_to_ddr_connection = HIVE_DMA_BUS_DDR_CONN,
+} dma_connection;
+
+typedef enum {
+  dma_zero_extension = _DMA_ZERO_EXTEND,
+  dma_sign_extension = _DMA_SIGN_EXTEND
+} dma_extension;
+
+
+#define DMA_PROP_SHIFT(val, param)       ((val) << _DMA_V2_ ## param ## _IDX)
+#define DMA_PROP_MASK(param)             ((1U << _DMA_V2_ ## param ## _BITS)-1)
+#define DMA_PACK(val, param)             DMA_PROP_SHIFT((val) & DMA_PROP_MASK(param), param)
+
+#define DMA_PACK_COMMAND(cmd)            DMA_PACK(cmd, CMD)
+#define DMA_PACK_CHANNEL(ch)             DMA_PACK(ch,  CHANNEL)
+#define DMA_PACK_PARAM(par)              DMA_PACK(par, PARAM)
+#define DMA_PACK_EXTENSION(ext)          DMA_PACK(ext, EXTENSION)
+#define DMA_PACK_LEFT_CROPPING(lc)       DMA_PACK(lc,  LEFT_CROPPING)
+#define DMA_PACK_WIDTH_A(w)              DMA_PACK(w,   SPEC_DEV_A_XB)
+#define DMA_PACK_WIDTH_B(w)              DMA_PACK(w,   SPEC_DEV_B_XB)
+#define DMA_PACK_HEIGHT(h)               DMA_PACK(h,   SPEC_YB)
+
+#define DMA_PACK_CMD_CHANNEL(cmd, ch)	 (DMA_PACK_COMMAND(cmd) | DMA_PACK_CHANNEL(ch))
+#define DMA_PACK_SETUP(conn, ext)        ((conn) | DMA_PACK_EXTENSION(ext))
+#define DMA_PACK_CROP_ELEMS(elems, crop) ((elems) | DMA_PACK_LEFT_CROPPING(crop))
+
+#define hive_dma_snd(dma_id, token) OP_std_snd(dma_id, (unsigned int)(token))
+
+#define DMA_PACK_BLOCK_CMD(cmd, ch, width_a, width_b, height) \
+  (DMA_PACK_COMMAND(cmd)     | \
+   DMA_PACK_CHANNEL(ch)      | \
+   DMA_PACK_WIDTH_A(width_a) | \
+   DMA_PACK_WIDTH_B(width_b) | \
+   DMA_PACK_HEIGHT(height))
+
+#ifdef __HIVECC
+#define hive_dma_move_data(dma_id, read, channel, addr_a, addr_b, to_is_var, from_is_var) \
+{ \
+  /*hive_dma_snd(dma_id, DMA_PACK_CMD_CHANNEL(read?_DMA_V2_MOVE_B2A_COMMAND:_DMA_V2_MOVE_A2B_COMMAND, channel)); \
+  hive_dma_snd(dma_id, read?(unsigned)(addr_b):(unsigned)(addr_a)); \
+  hive_dma_snd(dma_id, read?(unsigned)(addr_a):(unsigned)(addr_b)); */\
+  if (read) { \
+    hive_dma_snd(dma_id, DMA_PACK_CMD_CHANNEL(_DMA_V2_MOVE_B2A_COMMAND, channel)); \
+    hive_dma_snd(dma_id, (unsigned)(addr_b)); \
+    hive_dma_snd(dma_id, (unsigned)(addr_a)); \
+  } else { \
+    hive_dma_snd(dma_id, DMA_PACK_CMD_CHANNEL(_DMA_V2_MOVE_A2B_COMMAND, channel)); \
+    hive_dma_snd(dma_id, (unsigned)(addr_a)); \
+    hive_dma_snd(dma_id, (unsigned)(addr_b)); \
+  } \
+}
+#define hive_dma_move_data_no_ack(dma_id, read, channel, addr_a, addr_b, to_is_var, from_is_var) \
+{ \
+  /*hive_dma_snd(dma_id, DMA_PACK_CMD_CHANNEL(read?_DMA_V2_NO_ACK_MOVE_B2A_NO_SYNC_CHK_COMMAND:_DMA_V2_NO_ACK_MOVE_A2B_NO_SYNC_CHK_COMMAND, channel)); \
+  hive_dma_snd(dma_id, read?(unsigned)(addr_b):(unsigned)(addr_a)); \
+  hive_dma_snd(dma_id, read?(unsigned)(addr_a):(unsigned)(addr_b)); */\
+  if (read) { \
+    hive_dma_snd(dma_id, DMA_PACK_CMD_CHANNEL(_DMA_V2_NO_ACK_MOVE_B2A_NO_SYNC_CHK_COMMAND, channel)); \
+    hive_dma_snd(dma_id, (unsigned)(addr_b)); \
+    hive_dma_snd(dma_id, (unsigned)(addr_a)); \
+  } else { \
+    hive_dma_snd(dma_id, DMA_PACK_CMD_CHANNEL(_DMA_V2_NO_ACK_MOVE_A2B_NO_SYNC_CHK_COMMAND, channel)); \
+    hive_dma_snd(dma_id, (unsigned)(addr_a)); \
+    hive_dma_snd(dma_id, (unsigned)(addr_b)); \
+  } \
+}
+#else
+#define hive_dma_move_data(dma_id, read, channel, addr_a, addr_b, to_is_var, from_is_var) \
+{ \
+  hive_dma_snd(dma_id, DMA_PACK(_DMA_V2_SET_CRUN_COMMAND, CMD)); \
+  hive_dma_snd(dma_id, DMA_PACK_CMD_CHANNEL(read?_DMA_V2_MOVE_B2A_COMMAND:_DMA_V2_MOVE_A2B_COMMAND, channel)); \
+  hive_dma_snd(dma_id, read?(unsigned)(addr_b):(unsigned)(addr_a)); \
+  hive_dma_snd(dma_id, read?(unsigned)(addr_a):(unsigned)(addr_b)); \
+  hive_dma_snd(dma_id, to_is_var); \
+  hive_dma_snd(dma_id, from_is_var); \
+}
+#define hive_dma_move_data_no_ack(dma_id, read, channel, addr_a, addr_b, to_is_var, from_is_var) \
+{ \
+  hive_dma_snd(dma_id, DMA_PACK(_DMA_V2_SET_CRUN_COMMAND, CMD)); \
+  hive_dma_snd(dma_id, DMA_PACK_CMD_CHANNEL(read?_DMA_V2_NO_ACK_MOVE_B2A_NO_SYNC_CHK_COMMAND:_DMA_V2_NO_ACK_MOVE_A2B_NO_SYNC_CHK_COMMAND, channel)); \
+  hive_dma_snd(dma_id, read?(unsigned)(addr_b):(unsigned)(addr_a)); \
+  hive_dma_snd(dma_id, read?(unsigned)(addr_a):(unsigned)(addr_b)); \
+  hive_dma_snd(dma_id, to_is_var); \
+  hive_dma_snd(dma_id, from_is_var); \
+}
+#endif
+
+#define hive_dma_move_b2a_data(dma_id, channel, to_addr, from_addr, to_is_var, from_is_var) \
+{ \
+  hive_dma_move_data(dma_id, true, channel, to_addr, from_addr, to_is_var, from_is_var) \
+}
+
+#define hive_dma_move_a2b_data(dma_id, channel, from_addr, to_addr, from_is_var, to_is_var) \
+{ \
+  hive_dma_move_data(dma_id, false, channel, from_addr, to_addr, from_is_var, to_is_var) \
+}
+
+#ifdef __HIVECC
+#define hive_dma_set_data(dma_id, channel, address, value, is_var) \
+{ \
+  hive_dma_snd(dma_id, _DMA_V2_PACK_CHANNEL_CMD(_DMA_V2_INIT_A_COMMAND, channel)); \
+  hive_dma_snd(dma_id, value); \
+  hive_dma_snd(dma_id, address); \
+}
+#else
+#define hive_dma_set_data(dma_id, channel, address, value, is_var) \
+{ \
+  hive_dma_snd(dma_id, DMA_PACK(_DMA_V2_SET_CRUN_COMMAND, CMD)); \
+  hive_dma_snd(dma_id, DMA_PACK_CMD_CHANNEL(_DMA_V2_INIT_A_COMMAND, channel)); \
+  hive_dma_snd(dma_id, value); \
+  hive_dma_snd(dma_id, address); \
+  hive_dma_snd(dma_id, is_var); \
+}
+#endif
+
+#define hive_dma_clear_data(dma_id, channel, address, is_var) hive_dma_set_data(dma_id, channel, address, 0, is_var)
+
+#define hive_dma_configure(dma_id, channel, connection, extension, height, \
+	stride_A, elems_A, cropping_A, width_A, \
+	stride_B, elems_B, cropping_B, width_B) \
+{ \
+  hive_dma_snd(dma_id, DMA_PACK_CMD_CHANNEL(_DMA_V2_CONFIG_CHANNEL_COMMAND, channel)); \
+  hive_dma_snd(dma_id, DMA_PACK_SETUP(connection, extension)); \
+  hive_dma_snd(dma_id, stride_A); \
+  hive_dma_snd(dma_id, DMA_PACK_CROP_ELEMS(elems_A, cropping_A)); \
+  hive_dma_snd(dma_id, width_A); \
+  hive_dma_snd(dma_id, stride_B); \
+  hive_dma_snd(dma_id, DMA_PACK_CROP_ELEMS(elems_B, cropping_B)); \
+  hive_dma_snd(dma_id, width_B); \
+  hive_dma_snd(dma_id, height); \
+}
+
+#ifdef __HIVECC
+/* If the command is "set" the 5th argument holds the value */
+#define hive_dma_execute(dma_id, channel, cmd, to_addr, from_addr_value, to_is_var, from_is_var) \
+{ \
+  hive_dma_snd(dma_id, DMA_PACK_CMD_CHANNEL(cmd, channel)); \
+  hive_dma_snd(dma_id, to_addr); \
+  hive_dma_snd(dma_id, from_addr_value); \
+}
+#else
+#define hive_dma_execute(dma_id, channel, cmd, to_addr, from_addr_value, to_is_var, from_is_var) \
+{ \
+  hive_dma_snd(dma_id, DMA_PACK(_DMA_V2_SET_CRUN_COMMAND, CMD)); \
+  hive_dma_snd(dma_id, DMA_PACK_CMD_CHANNEL(cmd, channel)); \
+  hive_dma_snd(dma_id, to_addr); \
+  hive_dma_snd(dma_id, from_addr_value); \
+  hive_dma_snd(dma_id, to_is_var); \
+  if ((cmd & DMA_CLEAR_CMDBIT) == 0) { \
+	hive_dma_snd(dma_id, from_is_var); \
+  } \
+}
+#endif
+
+#define hive_dma_configure_fast(dma_id, channel, connection, extension, elems_A, elems_B) \
+{ \
+  hive_dma_snd(dma_id, DMA_PACK_CMD_CHANNEL(_DMA_V2_CONFIG_CHANNEL_COMMAND, channel)); \
+  hive_dma_snd(dma_id, DMA_PACK_SETUP(connection, extension)); \
+  hive_dma_snd(dma_id, 0); \
+  hive_dma_snd(dma_id, DMA_PACK_CROP_ELEMS(elems_A, 0)); \
+  hive_dma_snd(dma_id, 0); \
+  hive_dma_snd(dma_id, 0); \
+  hive_dma_snd(dma_id, DMA_PACK_CROP_ELEMS(elems_B, 0)); \
+  hive_dma_snd(dma_id, 0); \
+  hive_dma_snd(dma_id, 1); \
+}
+
+#define hive_dma_set_parameter(dma_id, channel, param, value) \
+{ \
+  hive_dma_snd(dma_id, _DMA_V2_SET_CHANNEL_PARAM_COMMAND | DMA_PACK_CHANNEL(channel) | DMA_PACK_PARAM(param)); \
+  hive_dma_snd(dma_id, value); \
+}
+
+#define	DMA_SPECIFIC_CMDBIT	0x01
+#define	DMA_CHECK_CMDBIT	0x02
+#define	DMA_RW_CMDBIT		0x04
+#define	DMA_CLEAR_CMDBIT	0x08
+#define	DMA_ACK_CMDBIT		0x10
+#define	DMA_CFG_CMDBIT		0x20
+#define	DMA_PARAM_CMDBIT	0x01
+
+/* Write complete check not necessary if there's no ack */
+#define	DMA_NOACK_CMD		(DMA_ACK_CMDBIT | DMA_CHECK_CMDBIT)
+#define	DMA_CFG_CMD			(DMA_CFG_CMDBIT)
+#define	DMA_CFGPARAM_CMD	(DMA_CFG_CMDBIT | DMA_PARAM_CMDBIT)
+
+#define DMA_CMD_NEEDS_ACK(cmd) ((cmd & DMA_NOACK_CMD) == 0)
+#define DMA_CMD_IS_TRANSFER(cmd) ((cmd & DMA_CFG_CMDBIT) == 0)
+#define DMA_CMD_IS_WR(cmd) ((cmd & DMA_RW_CMDBIT) != 0)
+#define DMA_CMD_IS_RD(cmd) ((cmd & DMA_RW_CMDBIT) == 0)
+#define DMA_CMD_IS_CLR(cmd) ((cmd & DMA_CLEAR_CMDBIT) != 0)
+#define DMA_CMD_IS_CFG(cmd) ((cmd & DMA_CFG_CMDBIT) != 0)
+#define DMA_CMD_IS_PARAMCFG(cmd) ((cmd & DMA_CFGPARAM_CMD) == DMA_CFGPARAM_CMD)
+
+/* As a matter of convention */
+#define DMA_TRANSFER_READ		DMA_TRANSFER_B2A
+#define DMA_TRANSFER_WRITE		DMA_TRANSFER_A2B
+/* store/load from the PoV of the system(memory) */
+#define DMA_TRANSFER_STORE		DMA_TRANSFER_B2A
+#define DMA_TRANSFER_LOAD		DMA_TRANSFER_A2B
+#define DMA_TRANSFER_CLEAR		DMA_TRANSFER_CLEAR_A
+
+typedef enum {
+	DMA_TRANSFER_CLEAR_A = DMA_CLEAR_CMDBIT,                                       /* 8 */
+	DMA_TRANSFER_CLEAR_B = DMA_CLEAR_CMDBIT | DMA_RW_CMDBIT,                       /* 12 */
+	DMA_TRANSFER_A2B = DMA_RW_CMDBIT,                                              /* 4 */
+	DMA_TRANSFER_B2A = 0,                                                          /* 0 */
+	DMA_TRANSFER_CLEAR_A_NOACK = DMA_CLEAR_CMDBIT | DMA_NOACK_CMD,                 /* 26 */
+	DMA_TRANSFER_CLEAR_B_NOACK = DMA_CLEAR_CMDBIT | DMA_RW_CMDBIT | DMA_NOACK_CMD, /* 30 */
+	DMA_TRANSFER_A2B_NOACK = DMA_RW_CMDBIT | DMA_NOACK_CMD,                        /* 22 */
+	DMA_TRANSFER_B2A_NOACK = DMA_NOACK_CMD,                                        /* 18 */
+	DMA_FASTTRANSFER_CLEAR_A = DMA_CLEAR_CMDBIT | DMA_SPECIFIC_CMDBIT,
+	DMA_FASTTRANSFER_CLEAR_B = DMA_CLEAR_CMDBIT | DMA_RW_CMDBIT | DMA_SPECIFIC_CMDBIT,
+	DMA_FASTTRANSFER_A2B = DMA_RW_CMDBIT | DMA_SPECIFIC_CMDBIT,
+	DMA_FASTTRANSFER_B2A = DMA_SPECIFIC_CMDBIT,
+	DMA_FASTTRANSFER_CLEAR_A_NOACK = DMA_CLEAR_CMDBIT | DMA_NOACK_CMD | DMA_SPECIFIC_CMDBIT,
+	DMA_FASTTRANSFER_CLEAR_B_NOACK = DMA_CLEAR_CMDBIT | DMA_RW_CMDBIT | DMA_NOACK_CMD | DMA_SPECIFIC_CMDBIT,
+	DMA_FASTTRANSFER_A2B_NOACK = DMA_RW_CMDBIT | DMA_NOACK_CMD | DMA_SPECIFIC_CMDBIT,
+	DMA_FASTTRANSFER_B2A_NOACK = DMA_NOACK_CMD | DMA_SPECIFIC_CMDBIT,
+} dma_transfer_type_t;
+
+typedef enum {
+	DMA_CONFIG_SETUP = _DMA_V2_PACKING_SETUP_PARAM,
+	DMA_CONFIG_HEIGHT = _DMA_V2_HEIGHT_PARAM,
+	DMA_CONFIG_STRIDE_A_ = _DMA_V2_STRIDE_A_PARAM,
+	DMA_CONFIG_CROP_ELEM_A = _DMA_V2_ELEM_CROPPING_A_PARAM,
+	DMA_CONFIG_WIDTH_A = _DMA_V2_WIDTH_A_PARAM,
+	DMA_CONFIG_STRIDE_B_ = _DMA_V2_STRIDE_B_PARAM,
+	DMA_CONFIG_CROP_ELEM_B = _DMA_V2_ELEM_CROPPING_B_PARAM,
+	DMA_CONFIG_WIDTH_B = _DMA_V2_WIDTH_B_PARAM,
+} dma_config_type_t;
+
+struct dma_port_config {
+	uint8_t  crop, elems;
+	uint16_t width;
+	uint32_t stride;
+};
+
+/* Descriptor for dma configuration */
+struct dma_channel_config {
+	uint8_t  connection;
+	uint8_t  extension;
+	uint8_t  height;
+	struct dma_port_config a, b;
+};
+
+#endif /* __DMA_GLOBAL_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/event_fifo_global.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/event_fifo_global.h
new file mode 100644
index 0000000..4df7a40
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/event_fifo_global.h
@@ -0,0 +1,20 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __EVENT_FIFO_GLOBAL_H
+#define __EVENT_FIFO_GLOBAL_H
+
+/*#error "event_global.h: No global event information permitted"*/
+
+#endif /* __EVENT_FIFO_GLOBAL_H */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/fifo_monitor_global.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/fifo_monitor_global.h
new file mode 100644
index 0000000..f43bf0a
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/fifo_monitor_global.h
@@ -0,0 +1,32 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __FIFO_MONITOR_GLOBAL_H_INCLUDED__
+#define __FIFO_MONITOR_GLOBAL_H_INCLUDED__
+
+#define IS_FIFO_MONITOR_VERSION_2
+
+/*
+#define HIVE_ISP_CSS_STREAM_SWITCH_NONE      0
+#define HIVE_ISP_CSS_STREAM_SWITCH_SP        1
+#define HIVE_ISP_CSS_STREAM_SWITCH_ISP       2
+ *
+ * Actually, "HIVE_ISP_CSS_STREAM_SWITCH_SP = 1", "HIVE_ISP_CSS_STREAM_SWITCH_ISP = 0"
+ * "hive_isp_css_stream_switch_hrt.h"
+ */
+#define HIVE_ISP_CSS_STREAM_SWITCH_ISP       0
+#define HIVE_ISP_CSS_STREAM_SWITCH_SP        1
+#define HIVE_ISP_CSS_STREAM_SWITCH_NONE      2
+
+#endif /* __FIFO_MONITOR_GLOBAL_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/gdc_global.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/gdc_global.h
new file mode 100644
index 0000000..4505775
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/gdc_global.h
@@ -0,0 +1,90 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __GDC_GLOBAL_H_INCLUDED__
+#define __GDC_GLOBAL_H_INCLUDED__
+
+#define IS_GDC_VERSION_2
+
+#include <type_support.h>
+#include "gdc_v2_defs.h"
+
+/*
+ * Storage addresses for packed data transfer
+ */
+#define GDC_PARAM_ICX_LEFT_ROUNDED_IDX            0
+#define GDC_PARAM_OXDIM_FLOORED_IDX               1
+#define GDC_PARAM_OXDIM_LAST_IDX                  2
+#define GDC_PARAM_WOIX_LAST_IDX                   3
+#define GDC_PARAM_IY_TOPLEFT_IDX                  4
+#define GDC_PARAM_CHUNK_CNT_IDX                   5
+/*#define GDC_PARAM_ELEMENTS_PER_XMEM_ADDR_IDX    6 */		/* Derived from bpp */
+#define GDC_PARAM_BPP_IDX                         6
+#define GDC_PARAM_BLOCK_HEIGHT_IDX                7
+/*#define GDC_PARAM_DMA_CHANNEL_STRIDE_A_IDX      8*/		/* The DMA stride == the GDC buffer stride */
+#define GDC_PARAM_WOIX_IDX                        8
+#define GDC_PARAM_DMA_CHANNEL_STRIDE_B_IDX        9
+#define GDC_PARAM_DMA_CHANNEL_WIDTH_A_IDX        10
+#define GDC_PARAM_DMA_CHANNEL_WIDTH_B_IDX        11
+#define GDC_PARAM_VECTORS_PER_LINE_IN_IDX        12
+#define GDC_PARAM_VECTORS_PER_LINE_OUT_IDX       13
+#define GDC_PARAM_VMEM_IN_DIMY_IDX               14
+#define GDC_PARAM_COMMAND_IDX                    15
+#define N_GDC_PARAM                              16
+
+/* Because of the packed parameter transfer max(params) == max(fragments) */
+#define	N_GDC_FRAGMENTS		N_GDC_PARAM
+
+/* The GDC is capable of higher internal precision than the parameter data structures */
+#define HRT_GDC_COORD_SCALE_BITS	6
+#define HRT_GDC_COORD_SCALE			(1 << HRT_GDC_COORD_SCALE_BITS)
+
+typedef enum {
+	GDC_CH0_ID = 0,
+	N_GDC_CHANNEL_ID
+} gdc_channel_ID_t;
+
+typedef enum {
+	gdc_8_bpp  = 8,
+	gdc_10_bpp = 10,
+	gdc_12_bpp = 12,
+	gdc_14_bpp = 14
+} gdc_bits_per_pixel_t;
+
+typedef struct gdc_scale_param_mem_s {
+	uint16_t  params[N_GDC_PARAM];
+	uint16_t  ipx_start_array[N_GDC_PARAM];
+	uint16_t  ibuf_offset[N_GDC_PARAM];
+	uint16_t  obuf_offset[N_GDC_PARAM];
+} gdc_scale_param_mem_t;
+
+typedef struct gdc_warp_param_mem_s {
+	uint32_t      origin_x;
+	uint32_t      origin_y;
+	uint32_t      in_addr_offset;
+	uint32_t      in_block_width;
+	uint32_t      in_block_height;
+	uint32_t      p0_x;
+	uint32_t      p0_y;
+	uint32_t      p1_x;
+	uint32_t      p1_y;
+	uint32_t      p2_x;
+	uint32_t      p2_y;
+	uint32_t      p3_x;
+	uint32_t      p3_y;
+	uint32_t      padding[3];
+} gdc_warp_param_mem_t;
+
+
+#endif /* __GDC_GLOBAL_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/gp_device_global.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/gp_device_global.h
new file mode 100644
index 0000000..30ad770
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/gp_device_global.h
@@ -0,0 +1,85 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __GP_DEVICE_GLOBAL_H_INCLUDED__
+#define __GP_DEVICE_GLOBAL_H_INCLUDED__
+
+#define IS_GP_DEVICE_VERSION_2
+
+#define _REG_GP_IRQ_REQ0_ADDR				0x08
+#define _REG_GP_IRQ_REQ1_ADDR				0x0C
+/* The SP sends SW interrupt info to this register */
+#define _REG_GP_IRQ_REQUEST0_ADDR			_REG_GP_IRQ_REQ0_ADDR
+#define _REG_GP_IRQ_REQUEST1_ADDR			_REG_GP_IRQ_REQ1_ADDR
+
+/* The SP configures FIFO switches in these registers */
+#define _REG_GP_SWITCH_IF_ADDR						0x40
+#define _REG_GP_SWITCH_GDC1_ADDR					0x44
+#define _REG_GP_SWITCH_GDC2_ADDR					0x48
+/* @ INPUT_FORMATTER_BASE -> GP_DEVICE_BASE */
+#define _REG_GP_IFMT_input_switch_lut_reg0			0x00030800
+#define _REG_GP_IFMT_input_switch_lut_reg1			0x00030804
+#define _REG_GP_IFMT_input_switch_lut_reg2			0x00030808
+#define _REG_GP_IFMT_input_switch_lut_reg3			0x0003080C
+#define _REG_GP_IFMT_input_switch_lut_reg4			0x00030810
+#define _REG_GP_IFMT_input_switch_lut_reg5			0x00030814
+#define _REG_GP_IFMT_input_switch_lut_reg6			0x00030818
+#define _REG_GP_IFMT_input_switch_lut_reg7			0x0003081C
+#define _REG_GP_IFMT_input_switch_fsync_lut			0x00030820
+#define _REG_GP_IFMT_srst							0x00030824
+#define _REG_GP_IFMT_slv_reg_srst					0x00030828
+#define _REG_GP_IFMT_input_switch_ch_id_fmt_type	0x0003082C
+
+/* @ GP_DEVICE_BASE */
+#define _REG_GP_SYNCGEN_ENABLE_ADDR					0x00090000
+#define _REG_GP_SYNCGEN_FREE_RUNNING_ADDR			0x00090004
+#define _REG_GP_SYNCGEN_PAUSE_ADDR					0x00090008
+#define _REG_GP_NR_FRAMES_ADDR						0x0009000C
+#define _REG_GP_SYNGEN_NR_PIX_ADDR					0x00090010
+#define _REG_GP_SYNGEN_NR_LINES_ADDR				0x00090014
+#define _REG_GP_SYNGEN_HBLANK_CYCLES_ADDR			0x00090018
+#define _REG_GP_SYNGEN_VBLANK_CYCLES_ADDR			0x0009001C
+#define _REG_GP_ISEL_SOF_ADDR						0x00090020
+#define _REG_GP_ISEL_EOF_ADDR						0x00090024
+#define _REG_GP_ISEL_SOL_ADDR						0x00090028
+#define _REG_GP_ISEL_EOL_ADDR						0x0009002C
+#define _REG_GP_ISEL_LFSR_ENABLE_ADDR				0x00090030
+#define _REG_GP_ISEL_LFSR_ENABLE_B_ADDR				0x00090034
+#define _REG_GP_ISEL_LFSR_RESET_VALUE_ADDR			0x00090038
+#define _REG_GP_ISEL_TPG_ENABLE_ADDR				0x0009003C
+#define _REG_GP_ISEL_TPG_ENABLE_B_ADDR				0x00090040
+#define _REG_GP_ISEL_HOR_CNT_MASK_ADDR				0x00090044
+#define _REG_GP_ISEL_VER_CNT_MASK_ADDR				0x00090048
+#define _REG_GP_ISEL_XY_CNT_MASK_ADDR				0x0009004C
+#define _REG_GP_ISEL_HOR_CNT_DELTA_ADDR				0x00090050
+#define _REG_GP_ISEL_VER_CNT_DELTA_ADDR				0x00090054
+#define _REG_GP_ISEL_TPG_MODE_ADDR					0x00090058
+#define _REG_GP_ISEL_TPG_RED1_ADDR					0x0009005C
+#define _REG_GP_ISEL_TPG_GREEN1_ADDR				0x00090060
+#define _REG_GP_ISEL_TPG_BLUE1_ADDR					0x00090064
+#define _REG_GP_ISEL_TPG_RED2_ADDR					0x00090068
+#define _REG_GP_ISEL_TPG_GREEN2_ADDR				0x0009006C
+#define _REG_GP_ISEL_TPG_BLUE2_ADDR					0x00090070
+#define _REG_GP_ISEL_CH_ID_ADDR						0x00090074
+#define _REG_GP_ISEL_FMT_TYPE_ADDR					0x00090078
+#define _REG_GP_ISEL_DATA_SEL_ADDR					0x0009007C
+#define _REG_GP_ISEL_SBAND_SEL_ADDR					0x00090080
+#define _REG_GP_ISEL_SYNC_SEL_ADDR					0x00090084
+#define _REG_GP_SYNCGEN_HOR_CNT_ADDR				0x00090088
+#define _REG_GP_SYNCGEN_VER_CNT_ADDR				0x0009008C
+#define _REG_GP_SYNCGEN_FRAME_CNT_ADDR				0x00090090
+#define _REG_GP_SOFT_RESET_ADDR						0x00090094
+
+
+#endif /* __GP_DEVICE_GLOBAL_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/gp_timer_global.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/gp_timer_global.h
new file mode 100644
index 0000000..ee636ad
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/gp_timer_global.h
@@ -0,0 +1,33 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __GP_TIMER_GLOBAL_H_INCLUDED__
+#define __GP_TIMER_GLOBAL_H_INCLUDED__
+
+#include "hive_isp_css_defs.h" /*HIVE_GP_TIMER_SP_DMEM_ERROR_IRQ */
+
+/* from gp_timer_defs.h*/
+#define GP_TIMER_COUNT_TYPE_HIGH             0
+#define GP_TIMER_COUNT_TYPE_LOW              1
+#define GP_TIMER_COUNT_TYPE_POSEDGE          2
+#define GP_TIMER_COUNT_TYPE_NEGEDGE          3
+#define GP_TIMER_COUNT_TYPE_TYPES            4
+
+/* timer - 3 is selected */
+#define GP_TIMER_SEL                         3
+
+/*HIVE_GP_TIMER_SP_DMEM_ERROR_IRQ is selected*/
+#define GP_TIMER_SIGNAL_SELECT  HIVE_GP_TIMER_SP_DMEM_ERROR_IRQ
+
+#endif /* __GP_TIMER_GLOBAL_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/gpio_global.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/gpio_global.h
new file mode 100644
index 0000000..a82ca2a
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/gpio_global.h
@@ -0,0 +1,45 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __GPIO_GLOBAL_H_INCLUDED__
+#define __GPIO_GLOBAL_H_INCLUDED__
+
+#define IS_GPIO_VERSION_1
+
+#include <gpio_block_defs.h>
+
+/* pqiao: following part only defines in hive_isp_css_defs.h in fpga system.
+	port it here
+*/
+
+/* GPIO pin defines */
+/*#define HIVE_GPIO_CAMERA_BOARD_RESET_PIN_NR                   0
+#define HIVE_GPIO_LCD_CLOCK_SELECT_PIN_NR                     7
+#define HIVE_GPIO_HDMI_CLOCK_SELECT_PIN_NR                    8
+#define HIVE_GPIO_LCD_VERT_FLIP_PIN_NR                        8
+#define HIVE_GPIO_LCD_HOR_FLIP_PIN_NR                         9
+#define HIVE_GPIO_AS3683_GPIO_P0_PIN_NR                       1
+#define HIVE_GPIO_AS3683_DATA_P1_PIN_NR                       2
+#define HIVE_GPIO_AS3683_CLK_P2_PIN_NR                        3
+#define HIVE_GPIO_AS3683_T1_F0_PIN_NR                         4
+#define HIVE_GPIO_AS3683_SFL_F1_PIN_NR                        5
+#define HIVE_GPIO_AS3683_STROBE_F2_PIN_NR                     6
+#define HIVE_GPIO_MAX1577_EN1_PIN_NR                          1
+#define HIVE_GPIO_MAX1577_EN2_PIN_NR                          2
+#define HIVE_GPIO_MAX8685A_EN_PIN_NR                          3
+#define HIVE_GPIO_MAX8685A_TRIG_PIN_NR                        4*/
+
+#define HIVE_GPIO_STROBE_TRIGGER_PIN		2
+
+#endif /* __GPIO_GLOBAL_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/hmem_global.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/hmem_global.h
new file mode 100644
index 0000000..7e05d7d
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/hmem_global.h
@@ -0,0 +1,45 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __HMEM_GLOBAL_H_INCLUDED__
+#define __HMEM_GLOBAL_H_INCLUDED__
+
+#include <type_support.h>
+
+#define IS_HMEM_VERSION_1
+
+#include "isp.h"
+
+/*
+#define ISP_HIST_ADDRESS_BITS                  12
+#define ISP_HIST_ALIGNMENT                     4
+#define ISP_HIST_COMP_IN_PREC                  12
+#define ISP_HIST_DEPTH                         1024
+#define ISP_HIST_WIDTH                         24
+#define ISP_HIST_COMPONENTS                    4
+*/
+#define ISP_HIST_ALIGNMENT_LOG2		2
+
+#define HMEM_SIZE_LOG2		(ISP_HIST_ADDRESS_BITS-ISP_HIST_ALIGNMENT_LOG2)
+#define HMEM_SIZE			ISP_HIST_DEPTH
+
+#define HMEM_UNIT_SIZE		(HMEM_SIZE/ISP_HIST_COMPONENTS)
+#define HMEM_UNIT_COUNT		ISP_HIST_COMPONENTS
+
+#define HMEM_RANGE_LOG2		ISP_HIST_WIDTH
+#define HMEM_RANGE			(1UL<<HMEM_RANGE_LOG2)
+
+typedef uint32_t			hmem_data_t;
+
+#endif /* __HMEM_GLOBAL_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/debug.c b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/debug.c
new file mode 100644
index 0000000..c412810
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/debug.c
@@ -0,0 +1,72 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2016, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#include "debug.h"
+
+#ifndef __INLINE_DEBUG__
+#include "debug_private.h"
+#endif /* __INLINE_DEBUG__ */
+
+#include "memory_access.h"
+
+#define __INLINE_SP__
+#include "sp.h"
+
+#include "assert_support.h"
+
+/* The address of the remote copy */
+hrt_address	debug_buffer_address = (hrt_address)-1;
+hrt_vaddress	debug_buffer_ddr_address = (hrt_vaddress)-1;
+/* The local copy */
+debug_data_t		debug_data;
+debug_data_t		*debug_data_ptr = &debug_data;
+
+void debug_buffer_init(const hrt_address addr)
+{
+	debug_buffer_address = addr;
+
+	debug_data.head = 0;
+	debug_data.tail = 0;
+}
+
+void debug_buffer_ddr_init(const hrt_vaddress addr)
+{
+	debug_buf_mode_t mode = DEBUG_BUFFER_MODE_LINEAR;
+	uint32_t enable = 1;
+	uint32_t head = 0;
+	uint32_t tail = 0;
+	/* set the ddr queue */
+	debug_buffer_ddr_address = addr;
+	mmgr_store(addr + DEBUG_DATA_BUF_MODE_DDR_ADDR,
+				&mode, sizeof(debug_buf_mode_t));
+	mmgr_store(addr + DEBUG_DATA_HEAD_DDR_ADDR,
+				&head, sizeof(uint32_t));
+	mmgr_store(addr + DEBUG_DATA_TAIL_DDR_ADDR,
+				&tail, sizeof(uint32_t));
+	mmgr_store(addr + DEBUG_DATA_ENABLE_DDR_ADDR,
+				&enable, sizeof(uint32_t));
+
+	/* set the local copy */
+	debug_data.head = 0;
+	debug_data.tail = 0;
+}
+
+void debug_buffer_setmode(const debug_buf_mode_t mode)
+{
+	assert(debug_buffer_address != ((hrt_address)-1));
+
+	sp_dmem_store_uint32(SP0_ID,
+		debug_buffer_address + DEBUG_DATA_BUF_MODE_ADDR, mode);
+}
+
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/debug_local.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/debug_local.h
new file mode 100644
index 0000000..2b0c5f4
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/debug_local.h
@@ -0,0 +1,21 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __DEBUG_LOCAL_H_INCLUDED__
+#define __DEBUG_LOCAL_H_INCLUDED__
+
+#include "debug_global.h"
+
+#endif /* __DEBUG_LOCAL_H_INCLUDED__ */
+
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/debug_private.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/debug_private.h
new file mode 100644
index 0000000..a047aad
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/debug_private.h
@@ -0,0 +1,99 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __DEBUG_PRIVATE_H_INCLUDED__
+#define __DEBUG_PRIVATE_H_INCLUDED__
+
+#include "debug_public.h"
+
+#include "sp.h"
+
+#define __INLINE_ISP__
+#include "isp.h"
+
+#include "memory_access.h"
+
+#include "assert_support.h"
+
+STORAGE_CLASS_DEBUG_C bool is_debug_buffer_empty(void)
+{
+	return (debug_data_ptr->head == debug_data_ptr->tail);
+}
+
+STORAGE_CLASS_DEBUG_C hrt_data debug_dequeue(void)
+{
+	hrt_data value = 0;
+
+	assert(debug_buffer_address != ((hrt_address)-1));
+
+	debug_synch_queue();
+
+	if (!is_debug_buffer_empty()) {
+		value = debug_data_ptr->buf[debug_data_ptr->head];
+		debug_data_ptr->head = (debug_data_ptr->head + 1) & DEBUG_BUF_MASK;
+		sp_dmem_store_uint32(SP0_ID, debug_buffer_address + DEBUG_DATA_HEAD_ADDR, debug_data_ptr->head);
+	}
+
+	return value;
+}
+
+STORAGE_CLASS_DEBUG_C void debug_synch_queue(void)
+{
+	uint32_t remote_tail = sp_dmem_load_uint32(SP0_ID, debug_buffer_address + DEBUG_DATA_TAIL_ADDR);
+/* We could move the remote head after the upload, but we would have to limit the upload w.r.t. the local head. This is easier */
+	if (remote_tail > debug_data_ptr->tail) {
+		size_t	delta = remote_tail - debug_data_ptr->tail;
+		sp_dmem_load(SP0_ID, debug_buffer_address + DEBUG_DATA_BUF_ADDR + debug_data_ptr->tail*sizeof(uint32_t), (void *)&(debug_data_ptr->buf[debug_data_ptr->tail]), delta*sizeof(uint32_t));
+	} else if (remote_tail < debug_data_ptr->tail) {
+		size_t	delta = DEBUG_BUF_SIZE - debug_data_ptr->tail;
+		sp_dmem_load(SP0_ID, debug_buffer_address + DEBUG_DATA_BUF_ADDR + debug_data_ptr->tail*sizeof(uint32_t), (void *)&(debug_data_ptr->buf[debug_data_ptr->tail]), delta*sizeof(uint32_t));
+		sp_dmem_load(SP0_ID, debug_buffer_address + DEBUG_DATA_BUF_ADDR, (void *)&(debug_data_ptr->buf[0]), remote_tail*sizeof(uint32_t));
+	} /* else we are up to date */
+	debug_data_ptr->tail = remote_tail;
+}
+
+STORAGE_CLASS_DEBUG_C void debug_synch_queue_isp(void)
+{
+	uint32_t remote_tail = isp_dmem_load_uint32(ISP0_ID, DEBUG_BUFFER_ISP_DMEM_ADDR + DEBUG_DATA_TAIL_ADDR);
+/* We could move the remote head after the upload, but we would have to limit the upload w.r.t. the local head. This is easier */
+	if (remote_tail > debug_data_ptr->tail) {
+		size_t	delta = remote_tail - debug_data_ptr->tail;
+		isp_dmem_load(ISP0_ID, DEBUG_BUFFER_ISP_DMEM_ADDR + DEBUG_DATA_BUF_ADDR + debug_data_ptr->tail*sizeof(uint32_t), (void *)&(debug_data_ptr->buf[debug_data_ptr->tail]), delta*sizeof(uint32_t));
+	} else if (remote_tail < debug_data_ptr->tail) {
+		size_t	delta = DEBUG_BUF_SIZE - debug_data_ptr->tail;
+		isp_dmem_load(ISP0_ID, DEBUG_BUFFER_ISP_DMEM_ADDR + DEBUG_DATA_BUF_ADDR + debug_data_ptr->tail*sizeof(uint32_t), (void *)&(debug_data_ptr->buf[debug_data_ptr->tail]), delta*sizeof(uint32_t));
+		isp_dmem_load(ISP0_ID, DEBUG_BUFFER_ISP_DMEM_ADDR + DEBUG_DATA_BUF_ADDR, (void *)&(debug_data_ptr->buf[0]), remote_tail*sizeof(uint32_t));
+	} /* else we are up to date */
+	debug_data_ptr->tail = remote_tail;
+}
+
+STORAGE_CLASS_DEBUG_C void debug_synch_queue_ddr(void)
+{
+	uint32_t	remote_tail;
+
+	mmgr_load(debug_buffer_ddr_address + DEBUG_DATA_TAIL_DDR_ADDR, &remote_tail, sizeof(uint32_t));
+/* We could move the remote head after the upload, but we would have to limit the upload w.r.t. the local head. This is easier */
+	if (remote_tail > debug_data_ptr->tail) {
+		size_t	delta = remote_tail - debug_data_ptr->tail;
+		mmgr_load(debug_buffer_ddr_address + DEBUG_DATA_BUF_DDR_ADDR + debug_data_ptr->tail*sizeof(uint32_t), (void *)&(debug_data_ptr->buf[debug_data_ptr->tail]), delta*sizeof(uint32_t));
+	} else if (remote_tail < debug_data_ptr->tail) {
+		size_t	delta = DEBUG_BUF_SIZE - debug_data_ptr->tail;
+		mmgr_load(debug_buffer_ddr_address + DEBUG_DATA_BUF_DDR_ADDR + debug_data_ptr->tail*sizeof(uint32_t), (void *)&(debug_data_ptr->buf[debug_data_ptr->tail]), delta*sizeof(uint32_t));
+		mmgr_load(debug_buffer_ddr_address + DEBUG_DATA_BUF_DDR_ADDR, (void *)&(debug_data_ptr->buf[0]), remote_tail*sizeof(uint32_t));
+	} /* else we are up to date */
+	debug_data_ptr->tail = remote_tail;
+}
+
+#endif /* __DEBUG_PRIVATE_H_INCLUDED__ */
+
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/dma.c b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/dma.c
new file mode 100644
index 0000000..87a25d4
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/dma.c
@@ -0,0 +1,299 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2016, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#include <stddef.h>		/* NULL */
+
+#include "dma.h"
+
+#include "assert_support.h"
+
+#ifndef __INLINE_DMA__
+#include "dma_private.h"
+#endif /* __INLINE_DMA__ */
+
+void dma_get_state(const dma_ID_t ID, dma_state_t *state)
+{
+	int			i;
+	hrt_data	tmp;
+
+	assert(ID < N_DMA_ID);
+	assert(state != NULL);
+
+	tmp = dma_reg_load(ID, DMA_COMMAND_FSM_REG_IDX);
+	//reg  [3:0] : flags error [3], stall, run, idle [0]
+	//reg  [9:4] : command
+	//reg[14:10] : channel
+	//reg [23:15] : param
+	state->fsm_command_idle = tmp & 0x1;
+	state->fsm_command_run = tmp & 0x2;
+	state->fsm_command_stalling = tmp & 0x4;
+	state->fsm_command_error    = tmp & 0x8;
+	state->last_command_channel = (tmp>>10 & 0x1F);
+	state->last_command_param =  (tmp>>15 & 0x0F);
+	tmp = (tmp>>4) & 0x3F;
+/* state->last_command = (dma_commands_t)tmp; */
+/* if the enumerator is made non-linear */
+	/* AM: the list below does not cover all the cases*/
+	/*  and these are not correct */
+	/* therefore for just dumpinmg this command*/
+	state->last_command = tmp;
+
+/*
+	if (tmp == 0)
+		state->last_command = DMA_COMMAND_READ;
+	if (tmp == 1)
+		state->last_command = DMA_COMMAND_WRITE;
+	if (tmp == 2)
+		state->last_command = DMA_COMMAND_SET_CHANNEL;
+	if (tmp == 3)
+		state->last_command = DMA_COMMAND_SET_PARAM;
+	if (tmp == 4)
+		state->last_command = DMA_COMMAND_READ_SPECIFIC;
+	if (tmp == 5)
+		state->last_command = DMA_COMMAND_WRITE_SPECIFIC;
+	if (tmp == 8)
+		state->last_command = DMA_COMMAND_INIT;
+	if (tmp == 12)
+		state->last_command = DMA_COMMAND_INIT_SPECIFIC;
+	if (tmp == 15)
+		state->last_command = DMA_COMMAND_RST;
+*/
+
+/* No sub-fields, idx = 0 */
+	state->current_command = dma_reg_load(ID,
+		DMA_CG_INFO_REG_IDX(0, _DMA_FSM_GROUP_CMD_IDX));
+	state->current_addr_a = dma_reg_load(ID,
+		DMA_CG_INFO_REG_IDX(0, _DMA_FSM_GROUP_ADDR_A_IDX));
+	state->current_addr_b = dma_reg_load(ID,
+		DMA_CG_INFO_REG_IDX(0, _DMA_FSM_GROUP_ADDR_B_IDX));
+
+	tmp =  dma_reg_load(ID,
+		DMA_CG_INFO_REG_IDX(
+		_DMA_FSM_GROUP_FSM_CTRL_STATE_IDX,
+		_DMA_FSM_GROUP_FSM_CTRL_IDX));
+	state->fsm_ctrl_idle = tmp & 0x1;
+	state->fsm_ctrl_run = tmp & 0x2;
+	state->fsm_ctrl_stalling = tmp & 0x4;
+	state->fsm_ctrl_error = tmp & 0x8;
+	tmp = tmp >> 4;
+/* state->fsm_ctrl_state = (dma_ctrl_states_t)tmp; */
+	if (tmp == 0)
+		state->fsm_ctrl_state = DMA_CTRL_STATE_IDLE;
+	if (tmp == 1)
+		state->fsm_ctrl_state = DMA_CTRL_STATE_REQ_RCV;
+	if (tmp == 2)
+		state->fsm_ctrl_state = DMA_CTRL_STATE_RCV;
+	if (tmp == 3)
+		state->fsm_ctrl_state = DMA_CTRL_STATE_RCV_REQ;
+	if (tmp == 4)
+		state->fsm_ctrl_state = DMA_CTRL_STATE_INIT;
+	state->fsm_ctrl_source_dev = dma_reg_load(ID,
+		DMA_CG_INFO_REG_IDX(
+		_DMA_FSM_GROUP_FSM_CTRL_REQ_DEV_IDX,
+		_DMA_FSM_GROUP_FSM_CTRL_IDX));
+	state->fsm_ctrl_source_addr = dma_reg_load(ID,
+		DMA_CG_INFO_REG_IDX(
+		_DMA_FSM_GROUP_FSM_CTRL_REQ_ADDR_IDX,
+		_DMA_FSM_GROUP_FSM_CTRL_IDX));
+	state->fsm_ctrl_source_stride = dma_reg_load(ID,
+		DMA_CG_INFO_REG_IDX(
+		_DMA_FSM_GROUP_FSM_CTRL_REQ_STRIDE_IDX,
+		_DMA_FSM_GROUP_FSM_CTRL_IDX));
+	state->fsm_ctrl_source_width = dma_reg_load(ID,
+		DMA_CG_INFO_REG_IDX(
+		_DMA_FSM_GROUP_FSM_CTRL_REQ_XB_IDX,
+		_DMA_FSM_GROUP_FSM_CTRL_IDX));
+	state->fsm_ctrl_source_height = dma_reg_load(ID,
+		DMA_CG_INFO_REG_IDX(
+		_DMA_FSM_GROUP_FSM_CTRL_REQ_YB_IDX,
+		_DMA_FSM_GROUP_FSM_CTRL_IDX));
+	state->fsm_ctrl_pack_source_dev = dma_reg_load(ID,
+		DMA_CG_INFO_REG_IDX(
+		_DMA_FSM_GROUP_FSM_CTRL_PACK_REQ_DEV_IDX,
+		_DMA_FSM_GROUP_FSM_CTRL_IDX));
+	state->fsm_ctrl_pack_dest_dev = dma_reg_load(ID,
+		DMA_CG_INFO_REG_IDX(
+		_DMA_FSM_GROUP_FSM_CTRL_PACK_WR_DEV_IDX,
+		_DMA_FSM_GROUP_FSM_CTRL_IDX));
+	state->fsm_ctrl_dest_addr = dma_reg_load(ID,
+		DMA_CG_INFO_REG_IDX(
+		_DMA_FSM_GROUP_FSM_CTRL_WR_ADDR_IDX,
+		_DMA_FSM_GROUP_FSM_CTRL_IDX));
+	state->fsm_ctrl_dest_stride = dma_reg_load(ID,
+		DMA_CG_INFO_REG_IDX(
+		_DMA_FSM_GROUP_FSM_CTRL_WR_STRIDE_IDX,
+		_DMA_FSM_GROUP_FSM_CTRL_IDX));
+	state->fsm_ctrl_pack_source_width = dma_reg_load(ID,
+		DMA_CG_INFO_REG_IDX(
+		_DMA_FSM_GROUP_FSM_CTRL_PACK_REQ_XB_IDX,
+		_DMA_FSM_GROUP_FSM_CTRL_IDX));
+	state->fsm_ctrl_pack_dest_height = dma_reg_load(ID,
+		DMA_CG_INFO_REG_IDX(
+		_DMA_FSM_GROUP_FSM_CTRL_PACK_WR_YB_IDX,
+		_DMA_FSM_GROUP_FSM_CTRL_IDX));
+	state->fsm_ctrl_pack_dest_width = dma_reg_load(ID,
+		DMA_CG_INFO_REG_IDX(
+		_DMA_FSM_GROUP_FSM_CTRL_PACK_WR_XB_IDX,
+		_DMA_FSM_GROUP_FSM_CTRL_IDX));
+	state->fsm_ctrl_pack_source_elems = dma_reg_load(ID,
+		DMA_CG_INFO_REG_IDX(
+		_DMA_FSM_GROUP_FSM_CTRL_PACK_ELEM_REQ_IDX,
+		_DMA_FSM_GROUP_FSM_CTRL_IDX));
+	state->fsm_ctrl_pack_dest_elems = dma_reg_load(ID,
+		DMA_CG_INFO_REG_IDX(
+		_DMA_FSM_GROUP_FSM_CTRL_PACK_ELEM_WR_IDX,
+		_DMA_FSM_GROUP_FSM_CTRL_IDX));
+	state->fsm_ctrl_pack_extension = dma_reg_load(ID,
+		DMA_CG_INFO_REG_IDX(
+		_DMA_FSM_GROUP_FSM_CTRL_PACK_S_Z_IDX,
+		_DMA_FSM_GROUP_FSM_CTRL_IDX));
+
+	tmp = dma_reg_load(ID,
+		DMA_CG_INFO_REG_IDX(
+		_DMA_FSM_GROUP_FSM_PACK_STATE_IDX,
+		_DMA_FSM_GROUP_FSM_PACK_IDX));
+	state->pack_idle     = tmp & 0x1;
+	state->pack_run      = tmp & 0x2;
+	state->pack_stalling = tmp & 0x4;
+	state->pack_error    = tmp & 0x8;
+	state->pack_cnt_height = dma_reg_load(ID,
+		DMA_CG_INFO_REG_IDX(
+		_DMA_FSM_GROUP_FSM_PACK_CNT_YB_IDX,
+		_DMA_FSM_GROUP_FSM_PACK_IDX));
+	state->pack_src_cnt_width = dma_reg_load(ID,
+		DMA_CG_INFO_REG_IDX(
+		_DMA_FSM_GROUP_FSM_PACK_CNT_XB_REQ_IDX,
+		_DMA_FSM_GROUP_FSM_PACK_IDX));
+	state->pack_dest_cnt_width = dma_reg_load(ID,
+		DMA_CG_INFO_REG_IDX(
+		_DMA_FSM_GROUP_FSM_PACK_CNT_XB_WR_IDX,
+		_DMA_FSM_GROUP_FSM_PACK_IDX));
+
+	tmp = dma_reg_load(ID,
+		DMA_CG_INFO_REG_IDX(
+		_DMA_FSM_GROUP_FSM_REQ_STATE_IDX,
+		_DMA_FSM_GROUP_FSM_REQ_IDX));
+/* state->read_state = (dma_rw_states_t)tmp; */
+	if (tmp == 0)
+		state->read_state = DMA_RW_STATE_IDLE;
+	if (tmp == 1)
+		state->read_state = DMA_RW_STATE_REQ;
+	if (tmp == 2)
+		state->read_state = DMA_RW_STATE_NEXT_LINE;
+	if (tmp == 3)
+		state->read_state = DMA_RW_STATE_UNLOCK_CHANNEL;
+	state->read_cnt_height = dma_reg_load(ID,
+		DMA_CG_INFO_REG_IDX(
+		_DMA_FSM_GROUP_FSM_REQ_CNT_YB_IDX,
+		_DMA_FSM_GROUP_FSM_REQ_IDX));
+	state->read_cnt_width = dma_reg_load(ID,
+		DMA_CG_INFO_REG_IDX(
+		_DMA_FSM_GROUP_FSM_REQ_CNT_XB_IDX,
+		_DMA_FSM_GROUP_FSM_REQ_IDX));
+
+	tmp = dma_reg_load(ID,
+		DMA_CG_INFO_REG_IDX(
+		_DMA_FSM_GROUP_FSM_WR_STATE_IDX,
+		_DMA_FSM_GROUP_FSM_WR_IDX));
+/* state->write_state = (dma_rw_states_t)tmp; */
+	if (tmp == 0)
+		state->write_state = DMA_RW_STATE_IDLE;
+	if (tmp == 1)
+		state->write_state = DMA_RW_STATE_REQ;
+	if (tmp == 2)
+		state->write_state = DMA_RW_STATE_NEXT_LINE;
+	if (tmp == 3)
+		state->write_state = DMA_RW_STATE_UNLOCK_CHANNEL;
+	state->write_height = dma_reg_load(ID,
+		DMA_CG_INFO_REG_IDX(
+		_DMA_FSM_GROUP_FSM_WR_CNT_YB_IDX,
+		_DMA_FSM_GROUP_FSM_WR_IDX));
+	state->write_width = dma_reg_load(ID,
+		DMA_CG_INFO_REG_IDX(
+		_DMA_FSM_GROUP_FSM_WR_CNT_XB_IDX,
+		_DMA_FSM_GROUP_FSM_WR_IDX));
+
+	for (i = 0; i < HIVE_ISP_NUM_DMA_CONNS; i++) {
+		dma_port_state_t *port = &(state->port_states[i]);
+
+		tmp = dma_reg_load(ID, DMA_DEV_INFO_REG_IDX(0, i));
+		port->req_cs   = ((tmp & 0x1) != 0);
+		port->req_we_n = ((tmp & 0x2) != 0);
+		port->req_run  = ((tmp & 0x4) != 0);
+		port->req_ack  = ((tmp & 0x8) != 0);
+
+		tmp = dma_reg_load(ID, DMA_DEV_INFO_REG_IDX(1, i));
+		port->send_cs   = ((tmp & 0x1) != 0);
+		port->send_we_n = ((tmp & 0x2) != 0);
+		port->send_run  = ((tmp & 0x4) != 0);
+		port->send_ack  = ((tmp & 0x8) != 0);
+
+		tmp = dma_reg_load(ID, DMA_DEV_INFO_REG_IDX(2, i));
+		if (tmp & 0x1)
+			port->fifo_state = DMA_FIFO_STATE_WILL_BE_FULL;
+		if (tmp & 0x2)
+			port->fifo_state = DMA_FIFO_STATE_FULL;
+		if (tmp & 0x4)
+			port->fifo_state = DMA_FIFO_STATE_EMPTY;
+		port->fifo_counter = tmp >> 3;
+	}
+
+	for (i = 0; i < HIVE_DMA_NUM_CHANNELS; i++) {
+		dma_channel_state_t *ch = &(state->channel_states[i]);
+
+		ch->connection = DMA_GET_CONNECTION(dma_reg_load(ID,
+			DMA_CHANNEL_PARAM_REG_IDX(i,
+			_DMA_PACKING_SETUP_PARAM)));
+		ch->sign_extend = DMA_GET_EXTENSION(dma_reg_load(ID,
+			DMA_CHANNEL_PARAM_REG_IDX(i,
+			_DMA_PACKING_SETUP_PARAM)));
+		ch->height = dma_reg_load(ID,
+			DMA_CHANNEL_PARAM_REG_IDX(i,
+			_DMA_HEIGHT_PARAM));
+		ch->stride_a = dma_reg_load(ID,
+			DMA_CHANNEL_PARAM_REG_IDX(i,
+			_DMA_STRIDE_A_PARAM));
+		ch->elems_a = DMA_GET_ELEMENTS(dma_reg_load(ID,
+			DMA_CHANNEL_PARAM_REG_IDX(i,
+			_DMA_ELEM_CROPPING_A_PARAM)));
+		ch->cropping_a = DMA_GET_CROPPING(dma_reg_load(ID,
+			DMA_CHANNEL_PARAM_REG_IDX(i,
+			_DMA_ELEM_CROPPING_A_PARAM)));
+		ch->width_a = dma_reg_load(ID,
+			DMA_CHANNEL_PARAM_REG_IDX(i,
+			_DMA_WIDTH_A_PARAM));
+		ch->stride_b = dma_reg_load(ID,
+			DMA_CHANNEL_PARAM_REG_IDX(i,
+			_DMA_STRIDE_B_PARAM));
+		ch->elems_b = DMA_GET_ELEMENTS(dma_reg_load(ID,
+			DMA_CHANNEL_PARAM_REG_IDX(i,
+			_DMA_ELEM_CROPPING_B_PARAM)));
+		ch->cropping_b = DMA_GET_CROPPING(dma_reg_load(ID,
+			DMA_CHANNEL_PARAM_REG_IDX(i,
+			_DMA_ELEM_CROPPING_B_PARAM)));
+		ch->width_b = dma_reg_load(ID,
+			DMA_CHANNEL_PARAM_REG_IDX(i,
+			_DMA_WIDTH_B_PARAM));
+	}
+}
+
+void
+dma_set_max_burst_size(const dma_ID_t ID, dma_connection conn,
+		       uint32_t max_burst_size)
+{
+	assert(ID < N_DMA_ID);
+	assert(max_burst_size > 0);
+	dma_reg_store(ID, DMA_DEV_INFO_REG_IDX(_DMA_DEV_INTERF_MAX_BURST_IDX, conn),
+		      max_burst_size - 1);
+}
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/dma_local.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/dma_local.h
new file mode 100644
index 0000000..ab631e6
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/dma_local.h
@@ -0,0 +1,207 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __DMA_LOCAL_H_INCLUDED__
+#define __DMA_LOCAL_H_INCLUDED__
+
+#include <type_support.h>
+#include "dma_global.h"
+
+#include <hrt/defs.h>				/* HRTCAT() */
+#include <hrt/bits.h>				/* _hrt_get_bits() */
+#include <hive_isp_css_defs.h>		/* HIVE_DMA_NUM_CHANNELS */
+#include <dma_v2_defs.h>
+
+#define _DMA_FSM_GROUP_CMD_IDX						_DMA_V2_FSM_GROUP_CMD_IDX
+#define _DMA_FSM_GROUP_ADDR_A_IDX					_DMA_V2_FSM_GROUP_ADDR_SRC_IDX
+#define _DMA_FSM_GROUP_ADDR_B_IDX					_DMA_V2_FSM_GROUP_ADDR_DEST_IDX
+
+#define _DMA_FSM_GROUP_CMD_CTRL_IDX					_DMA_V2_FSM_GROUP_CMD_CTRL_IDX
+
+#define _DMA_FSM_GROUP_FSM_CTRL_IDX					_DMA_V2_FSM_GROUP_FSM_CTRL_IDX
+#define _DMA_FSM_GROUP_FSM_CTRL_STATE_IDX			_DMA_V2_FSM_GROUP_FSM_CTRL_STATE_IDX
+#define _DMA_FSM_GROUP_FSM_CTRL_REQ_DEV_IDX			_DMA_V2_FSM_GROUP_FSM_CTRL_REQ_DEV_IDX
+#define _DMA_FSM_GROUP_FSM_CTRL_REQ_ADDR_IDX		_DMA_V2_FSM_GROUP_FSM_CTRL_REQ_ADDR_IDX
+#define _DMA_FSM_GROUP_FSM_CTRL_REQ_STRIDE_IDX		_DMA_V2_FSM_GROUP_FSM_CTRL_REQ_STRIDE_IDX
+#define _DMA_FSM_GROUP_FSM_CTRL_REQ_XB_IDX			_DMA_V2_FSM_GROUP_FSM_CTRL_REQ_XB_IDX
+#define _DMA_FSM_GROUP_FSM_CTRL_REQ_YB_IDX			_DMA_V2_FSM_GROUP_FSM_CTRL_REQ_YB_IDX
+#define _DMA_FSM_GROUP_FSM_CTRL_PACK_REQ_DEV_IDX	_DMA_V2_FSM_GROUP_FSM_CTRL_PACK_REQ_DEV_IDX
+#define _DMA_FSM_GROUP_FSM_CTRL_PACK_WR_DEV_IDX		_DMA_V2_FSM_GROUP_FSM_CTRL_PACK_WR_DEV_IDX
+#define _DMA_FSM_GROUP_FSM_CTRL_WR_ADDR_IDX			_DMA_V2_FSM_GROUP_FSM_CTRL_WR_ADDR_IDX
+#define _DMA_FSM_GROUP_FSM_CTRL_WR_STRIDE_IDX		_DMA_V2_FSM_GROUP_FSM_CTRL_WR_STRIDE_IDX
+#define _DMA_FSM_GROUP_FSM_CTRL_PACK_REQ_XB_IDX		_DMA_V2_FSM_GROUP_FSM_CTRL_PACK_REQ_XB_IDX
+#define _DMA_FSM_GROUP_FSM_CTRL_PACK_WR_YB_IDX		_DMA_V2_FSM_GROUP_FSM_CTRL_PACK_WR_YB_IDX
+#define _DMA_FSM_GROUP_FSM_CTRL_PACK_WR_XB_IDX		_DMA_V2_FSM_GROUP_FSM_CTRL_PACK_WR_XB_IDX
+#define _DMA_FSM_GROUP_FSM_CTRL_PACK_ELEM_REQ_IDX	_DMA_V2_FSM_GROUP_FSM_CTRL_PACK_ELEM_REQ_IDX
+#define _DMA_FSM_GROUP_FSM_CTRL_PACK_ELEM_WR_IDX	_DMA_V2_FSM_GROUP_FSM_CTRL_PACK_ELEM_WR_IDX
+#define _DMA_FSM_GROUP_FSM_CTRL_PACK_S_Z_IDX		_DMA_V2_FSM_GROUP_FSM_CTRL_PACK_S_Z_IDX
+
+#define _DMA_FSM_GROUP_FSM_PACK_IDX					_DMA_V2_FSM_GROUP_FSM_PACK_IDX
+#define _DMA_FSM_GROUP_FSM_PACK_STATE_IDX			_DMA_V2_FSM_GROUP_FSM_PACK_STATE_IDX
+#define _DMA_FSM_GROUP_FSM_PACK_CNT_YB_IDX			_DMA_V2_FSM_GROUP_FSM_PACK_CNT_YB_IDX
+#define _DMA_FSM_GROUP_FSM_PACK_CNT_XB_REQ_IDX		_DMA_V2_FSM_GROUP_FSM_PACK_CNT_XB_REQ_IDX
+#define _DMA_FSM_GROUP_FSM_PACK_CNT_XB_WR_IDX		_DMA_V2_FSM_GROUP_FSM_PACK_CNT_XB_WR_IDX
+
+#define _DMA_FSM_GROUP_FSM_REQ_IDX					_DMA_V2_FSM_GROUP_FSM_REQ_IDX
+#define _DMA_FSM_GROUP_FSM_REQ_STATE_IDX			_DMA_V2_FSM_GROUP_FSM_REQ_STATE_IDX
+#define _DMA_FSM_GROUP_FSM_REQ_CNT_YB_IDX			_DMA_V2_FSM_GROUP_FSM_REQ_CNT_YB_IDX
+#define _DMA_FSM_GROUP_FSM_REQ_CNT_XB_IDX			_DMA_V2_FSM_GROUP_FSM_REQ_CNT_XB_IDX
+
+#define _DMA_FSM_GROUP_FSM_WR_IDX					_DMA_V2_FSM_GROUP_FSM_WR_IDX
+#define _DMA_FSM_GROUP_FSM_WR_STATE_IDX				_DMA_V2_FSM_GROUP_FSM_WR_STATE_IDX
+#define _DMA_FSM_GROUP_FSM_WR_CNT_YB_IDX			_DMA_V2_FSM_GROUP_FSM_WR_CNT_YB_IDX
+#define _DMA_FSM_GROUP_FSM_WR_CNT_XB_IDX			_DMA_V2_FSM_GROUP_FSM_WR_CNT_XB_IDX
+
+#define _DMA_DEV_INTERF_MAX_BURST_IDX			_DMA_V2_DEV_INTERF_MAX_BURST_IDX
+
+/*
+ * Macro's to compute the DMA parameter register indices
+ */
+#define DMA_SEL_COMP(comp)     (((comp)  & _hrt_ones(_DMA_V2_ADDR_SEL_COMP_BITS))            << _DMA_V2_ADDR_SEL_COMP_IDX)
+#define DMA_SEL_CH(ch)         (((ch)    & _hrt_ones(_DMA_V2_ADDR_SEL_CH_REG_BITS))          << _DMA_V2_ADDR_SEL_CH_REG_IDX)
+#define DMA_SEL_PARAM(param)   (((param) & _hrt_ones(_DMA_V2_ADDR_SEL_PARAM_BITS))           << _DMA_V2_ADDR_SEL_PARAM_IDX)
+/* CG = Connection Group */
+#define DMA_SEL_CG_INFO(info)  (((info)  & _hrt_ones(_DMA_V2_ADDR_SEL_GROUP_COMP_INFO_BITS)) << _DMA_V2_ADDR_SEL_GROUP_COMP_INFO_IDX)
+#define DMA_SEL_CG_COMP(comp)  (((comp)  & _hrt_ones(_DMA_V2_ADDR_SEL_GROUP_COMP_BITS))      << _DMA_V2_ADDR_SEL_GROUP_COMP_IDX)
+#define DMA_SEL_DEV_INFO(info) (((info)  & _hrt_ones(_DMA_V2_ADDR_SEL_DEV_INTERF_INFO_BITS)) << _DMA_V2_ADDR_SEL_DEV_INTERF_INFO_IDX)
+#define DMA_SEL_DEV_ID(dev)    (((dev)   & _hrt_ones(_DMA_V2_ADDR_SEL_DEV_INTERF_IDX_BITS))  << _DMA_V2_ADDR_SEL_DEV_INTERF_IDX_IDX)
+
+#define DMA_COMMAND_FSM_REG_IDX					(DMA_SEL_COMP(_DMA_V2_SEL_FSM_CMD) >> 2)
+#define DMA_CHANNEL_PARAM_REG_IDX(ch, param)	((DMA_SEL_COMP(_DMA_V2_SEL_CH_REG) | DMA_SEL_CH(ch) | DMA_SEL_PARAM(param)) >> 2)
+#define DMA_CG_INFO_REG_IDX(info_id, comp_id)	((DMA_SEL_COMP(_DMA_V2_SEL_CONN_GROUP) | DMA_SEL_CG_INFO(info_id) | DMA_SEL_CG_COMP(comp_id)) >> 2)
+#define DMA_DEV_INFO_REG_IDX(info_id, dev_id)	((DMA_SEL_COMP(_DMA_V2_SEL_DEV_INTERF) | DMA_SEL_DEV_INFO(info_id) | DMA_SEL_DEV_ID(dev_id)) >> 2)
+#define DMA_RST_REG_IDX							(DMA_SEL_COMP(_DMA_V2_SEL_RESET) >> 2)
+
+#define DMA_GET_CONNECTION(val)    _hrt_get_bits(val, _DMA_V2_CONNECTION_IDX,    _DMA_V2_CONNECTION_BITS)
+#define DMA_GET_EXTENSION(val)     _hrt_get_bits(val, _DMA_V2_EXTENSION_IDX,     _DMA_V2_EXTENSION_BITS)
+#define DMA_GET_ELEMENTS(val)      _hrt_get_bits(val, _DMA_V2_ELEMENTS_IDX,      _DMA_V2_ELEMENTS_BITS)
+#define DMA_GET_CROPPING(val)      _hrt_get_bits(val, _DMA_V2_LEFT_CROPPING_IDX, _DMA_V2_LEFT_CROPPING_BITS)
+
+typedef enum {
+	DMA_CTRL_STATE_IDLE,
+	DMA_CTRL_STATE_REQ_RCV,
+	DMA_CTRL_STATE_RCV,
+	DMA_CTRL_STATE_RCV_REQ,
+	DMA_CTRL_STATE_INIT,
+	N_DMA_CTRL_STATES
+} dma_ctrl_states_t;
+
+typedef enum {
+	DMA_COMMAND_READ,
+	DMA_COMMAND_WRITE,
+	DMA_COMMAND_SET_CHANNEL,
+	DMA_COMMAND_SET_PARAM,
+	DMA_COMMAND_READ_SPECIFIC,
+	DMA_COMMAND_WRITE_SPECIFIC,
+	DMA_COMMAND_INIT,
+	DMA_COMMAND_INIT_SPECIFIC,
+	DMA_COMMAND_RST,
+	N_DMA_COMMANDS
+} dma_commands_t;
+
+typedef enum {
+	DMA_RW_STATE_IDLE,
+	DMA_RW_STATE_REQ,
+	DMA_RW_STATE_NEXT_LINE,
+	DMA_RW_STATE_UNLOCK_CHANNEL,
+	N_DMA_RW_STATES
+} dma_rw_states_t;
+
+typedef enum {
+	DMA_FIFO_STATE_WILL_BE_FULL,
+	DMA_FIFO_STATE_FULL,
+	DMA_FIFO_STATE_EMPTY,
+	N_DMA_FIFO_STATES
+} dma_fifo_states_t;
+
+/* typedef struct dma_state_s			dma_state_t; */
+typedef struct dma_channel_state_s	dma_channel_state_t;
+typedef struct dma_port_state_s		dma_port_state_t;
+
+struct dma_port_state_s {
+	bool                       req_cs;
+	bool                       req_we_n;
+	bool                       req_run;
+	bool                       req_ack;
+	bool                       send_cs;
+	bool                       send_we_n;
+	bool                       send_run;
+	bool                       send_ack;
+	dma_fifo_states_t          fifo_state;
+	int                        fifo_counter;
+};
+
+struct dma_channel_state_s {
+	int                        connection;
+	bool                       sign_extend;
+	int                        height;
+	int                        stride_a;
+	int                        elems_a;
+	int                        cropping_a;
+	int                        width_a;
+	int                        stride_b;
+	int                        elems_b;
+	int                        cropping_b;
+	int                        width_b;
+};
+
+struct dma_state_s {
+	bool                       fsm_command_idle;
+	bool                       fsm_command_run;
+	bool                       fsm_command_stalling;
+	bool                       fsm_command_error;
+	dma_commands_t             last_command;
+	int                        last_command_channel;
+	int                        last_command_param;
+	dma_commands_t             current_command;
+	int                        current_addr_a;
+	int                        current_addr_b;
+	bool                       fsm_ctrl_idle;
+	bool                       fsm_ctrl_run;
+	bool                       fsm_ctrl_stalling;
+	bool                       fsm_ctrl_error;
+	dma_ctrl_states_t          fsm_ctrl_state;
+	int                        fsm_ctrl_source_dev;
+	int                        fsm_ctrl_source_addr;
+	int                        fsm_ctrl_source_stride;
+	int                        fsm_ctrl_source_width;
+	int                        fsm_ctrl_source_height;
+	int                        fsm_ctrl_pack_source_dev;
+	int                        fsm_ctrl_pack_dest_dev;
+	int                        fsm_ctrl_dest_addr;
+	int                        fsm_ctrl_dest_stride;
+	int                        fsm_ctrl_pack_source_width;
+	int                        fsm_ctrl_pack_dest_height;
+	int                        fsm_ctrl_pack_dest_width;
+	int                        fsm_ctrl_pack_source_elems;
+	int                        fsm_ctrl_pack_dest_elems;
+	int                        fsm_ctrl_pack_extension;
+	int						   pack_idle;
+	int	                       pack_run;
+	int		               	   pack_stalling;
+	int		                   pack_error;
+	int                        pack_cnt_height;
+	int                        pack_src_cnt_width;
+	int                        pack_dest_cnt_width;
+	dma_rw_states_t            read_state;
+	int                        read_cnt_height;
+	int                        read_cnt_width;
+	dma_rw_states_t            write_state;
+	int                        write_height;
+	int                        write_width;
+	dma_port_state_t           port_states[HIVE_ISP_NUM_DMA_CONNS];
+	dma_channel_state_t        channel_states[HIVE_DMA_NUM_CHANNELS];
+};
+
+#endif /* __DMA_LOCAL_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/dma_private.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/dma_private.h
new file mode 100644
index 0000000..ba54b1f
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/dma_private.h
@@ -0,0 +1,41 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __DMA_PRIVATE_H_INCLUDED__
+#define __DMA_PRIVATE_H_INCLUDED__
+
+#include "dma_public.h"
+
+#include "device_access.h"
+
+#include "assert_support.h"
+
+STORAGE_CLASS_DMA_C void dma_reg_store(const dma_ID_t ID,
+			const unsigned int reg,
+			const hrt_data value)
+{
+	assert(ID < N_DMA_ID);
+	assert(DMA_BASE[ID] != (hrt_address)-1);
+	ia_css_device_store_uint32(DMA_BASE[ID] + reg*sizeof(hrt_data), value);
+}
+
+STORAGE_CLASS_DMA_C hrt_data dma_reg_load(const dma_ID_t ID,
+					  const unsigned int reg)
+{
+	assert(ID < N_DMA_ID);
+	assert(DMA_BASE[ID] != (hrt_address)-1);
+	return ia_css_device_load_uint32(DMA_BASE[ID] + reg*sizeof(hrt_data));
+}
+
+#endif /* __DMA_PRIVATE_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/event_fifo.c b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/event_fifo.c
new file mode 100644
index 0000000..7776709
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/event_fifo.c
@@ -0,0 +1,19 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#include "event_fifo.h"
+
+#ifndef __INLINE_EVENT__
+#include "event_fifo_private.h"
+#endif /* __INLINE_EVENT__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/event_fifo_local.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/event_fifo_local.h
new file mode 100644
index 0000000..c595692
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/event_fifo_local.h
@@ -0,0 +1,57 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef _EVENT_FIFO_LOCAL_H
+#define _EVENT_FIFO_LOCAL_H
+
+/*
+ * All events come from connections mapped on the system
+ * bus but do not use a global IRQ
+ */
+#include "event_fifo_global.h"
+
+typedef enum {
+	SP0_EVENT_ID,
+	ISP0_EVENT_ID,
+	STR2MIPI_EVENT_ID,
+	N_EVENT_ID
+} event_ID_t;
+
+#define	EVENT_QUERY_BIT		0
+
+/* Events are read from FIFO */
+static const hrt_address event_source_addr[N_EVENT_ID] = {
+	0x0000000000380000ULL,
+	0x0000000000380004ULL,
+	0xffffffffffffffffULL};
+
+/* Read from FIFO are blocking, query data availability */
+static const hrt_address event_source_query_addr[N_EVENT_ID] = {
+	0x0000000000380010ULL,
+	0x0000000000380014ULL,
+	0xffffffffffffffffULL};
+
+/* Events are written to FIFO */
+static const hrt_address event_sink_addr[N_EVENT_ID] = {
+	0x0000000000380008ULL,
+	0x000000000038000CULL,
+	0x0000000000090104ULL};
+
+/* Writes to FIFO are blocking, query data space */
+static const hrt_address event_sink_query_addr[N_EVENT_ID] = {
+	0x0000000000380018ULL,
+	0x000000000038001CULL,
+	0x000000000009010CULL};
+
+#endif /* _EVENT_FIFO_LOCAL_H */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/event_fifo_private.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/event_fifo_private.h
new file mode 100644
index 0000000..9d3a296
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/event_fifo_private.h
@@ -0,0 +1,75 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __EVENT_FIFO_PRIVATE_H
+#define __EVENT_FIFO_PRIVATE_H
+
+#include "event_fifo_public.h"
+
+#include "device_access.h"
+
+#include "assert_support.h"
+
+#include <hrt/bits.h>			/* _hrt_get_bits() */
+
+STORAGE_CLASS_EVENT_C void event_wait_for(const event_ID_t ID)
+{
+	assert(ID < N_EVENT_ID);
+	assert(event_source_addr[ID] != ((hrt_address)-1));
+	(void)ia_css_device_load_uint32(event_source_addr[ID]);
+return;
+}
+
+STORAGE_CLASS_EVENT_C void cnd_event_wait_for(const event_ID_t ID,
+						const bool cnd)
+{
+	if (cnd) {
+		event_wait_for(ID);
+	}
+}
+
+STORAGE_CLASS_EVENT_C hrt_data event_receive_token(const event_ID_t ID)
+{
+	assert(ID < N_EVENT_ID);
+	assert(event_source_addr[ID] != ((hrt_address)-1));
+	return ia_css_device_load_uint32(event_source_addr[ID]);
+}
+
+STORAGE_CLASS_EVENT_C void event_send_token(const event_ID_t ID,
+					    const hrt_data token)
+{
+	assert(ID < N_EVENT_ID);
+	assert(event_sink_addr[ID] != ((hrt_address)-1));
+	ia_css_device_store_uint32(event_sink_addr[ID], token);
+}
+
+STORAGE_CLASS_EVENT_C bool is_event_pending(const event_ID_t ID)
+{
+	hrt_data	value;
+	assert(ID < N_EVENT_ID);
+	assert(event_source_query_addr[ID] != ((hrt_address)-1));
+	value = ia_css_device_load_uint32(event_source_query_addr[ID]);
+	return !_hrt_get_bit(value, EVENT_QUERY_BIT);
+}
+
+STORAGE_CLASS_EVENT_C bool can_event_send_token(const event_ID_t ID)
+{
+	hrt_data	value;
+	assert(ID < N_EVENT_ID);
+	assert(event_sink_query_addr[ID] != ((hrt_address)-1));
+	value = ia_css_device_load_uint32(event_sink_query_addr[ID]);
+	return !_hrt_get_bit(value, EVENT_QUERY_BIT);
+}
+
+#endif /* __EVENT_FIFO_PRIVATE_H */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/fifo_monitor.c b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/fifo_monitor.c
new file mode 100644
index 0000000..1087944
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/fifo_monitor.c
@@ -0,0 +1,567 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#include "fifo_monitor.h"
+
+#include <type_support.h>
+#include "device_access.h"
+
+#include <hrt/bits.h>
+
+#include "gp_device.h"
+
+#include "assert_support.h"
+
+#ifndef __INLINE_FIFO_MONITOR__
+#define STORAGE_CLASS_FIFO_MONITOR_DATA static const
+#else
+#define STORAGE_CLASS_FIFO_MONITOR_DATA const
+#endif /* __INLINE_FIFO_MONITOR__ */
+
+STORAGE_CLASS_FIFO_MONITOR_DATA unsigned int FIFO_SWITCH_ADDR[N_FIFO_SWITCH] = {
+	_REG_GP_SWITCH_IF_ADDR,
+	_REG_GP_SWITCH_GDC1_ADDR,
+	_REG_GP_SWITCH_GDC2_ADDR};
+
+#ifndef __INLINE_FIFO_MONITOR__
+#include "fifo_monitor_private.h"
+#endif /* __INLINE_FIFO_MONITOR__ */
+
+STORAGE_CLASS_INLINE bool fifo_monitor_status_valid (
+	const fifo_monitor_ID_t		ID,
+	const unsigned int			reg,
+	const unsigned int			port_id);
+
+STORAGE_CLASS_INLINE bool fifo_monitor_status_accept(
+	const fifo_monitor_ID_t		ID,
+	const unsigned int			reg,
+	const unsigned int			port_id);
+
+
+void fifo_channel_get_state(
+	const fifo_monitor_ID_t		ID,
+	const fifo_channel_t		channel_id,
+	fifo_channel_state_t		*state)
+{
+	assert(channel_id < N_FIFO_CHANNEL);
+	assert(state != NULL);
+
+	switch (channel_id) {
+	case FIFO_CHANNEL_ISP0_TO_SP0:
+		state->src_valid   = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_ISP_STREAM_STAT_IDX,
+			ISP_STR_MON_PORT_SND_SP); /* ISP_STR_MON_PORT_ISP2SP */
+		state->fifo_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_ISP_STREAM_STAT_IDX,
+			ISP_STR_MON_PORT_SND_SP);
+		state->fifo_valid  = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_SP_STREAM_STAT_IDX,
+			SP_STR_MON_PORT_RCV_ISP); /* ISP_STR_MON_PORT_SP2ISP */
+		state->sink_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_SP_STREAM_STAT_IDX,
+			SP_STR_MON_PORT_RCV_ISP);
+		break;
+	case FIFO_CHANNEL_SP0_TO_ISP0:
+		state->src_valid   = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_SP_STREAM_STAT_IDX,
+			SP_STR_MON_PORT_SND_ISP); /* ISP_STR_MON_PORT_SP2ISP */
+		state->fifo_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_SP_STREAM_STAT_IDX,
+			SP_STR_MON_PORT_SND_ISP);
+		state->fifo_valid  = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_ISP_STREAM_STAT_IDX,
+			ISP_STR_MON_PORT_RCV_SP); /* ISP_STR_MON_PORT_ISP2SP */
+		state->sink_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_ISP_STREAM_STAT_IDX,
+			ISP_STR_MON_PORT_RCV_SP);
+		break;
+	case FIFO_CHANNEL_ISP0_TO_IF0:
+		state->src_valid   = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_ISP_STREAM_STAT_IDX,
+			ISP_STR_MON_PORT_SND_PIF_A); /* ISP_STR_MON_PORT_ISP2PIFA */
+		state->fifo_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_ISP_STREAM_STAT_IDX,
+			ISP_STR_MON_PORT_SND_PIF_A);
+		state->fifo_valid  = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_RCV_PIF_A); /* MOD_STR_MON_PORT_CELLS2PIFA */
+		state->sink_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_RCV_PIF_A);
+		break;
+	case FIFO_CHANNEL_IF0_TO_ISP0:
+		state->src_valid   = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_SND_PIF_A); /* MOD_STR_MON_PORT_PIFA2CELLS */
+		state->fifo_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_SND_PIF_A);
+		state->fifo_valid  = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_ISP_STREAM_STAT_IDX,
+			ISP_STR_MON_PORT_RCV_PIF_A); /* ISP_STR_MON_PORT_PIFA2ISP */
+		state->sink_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_ISP_STREAM_STAT_IDX,
+			ISP_STR_MON_PORT_RCV_PIF_A);
+		break;
+	case FIFO_CHANNEL_ISP0_TO_IF1:
+		state->src_valid   = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_ISP_STREAM_STAT_IDX,
+			ISP_STR_MON_PORT_SND_PIF_B); /* ISP_STR_MON_PORT_ISP2PIFA */
+		state->fifo_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_ISP_STREAM_STAT_IDX,
+			ISP_STR_MON_PORT_SND_PIF_B);
+		state->fifo_valid  = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_RCV_PIF_B); /* MOD_STR_MON_PORT_CELLS2PIFB */
+		state->sink_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_RCV_PIF_B);
+		break;
+	case FIFO_CHANNEL_IF1_TO_ISP0:
+		state->src_valid   = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_SND_PIF_B); /* MOD_STR_MON_PORT_PIFB2CELLS */
+		state->fifo_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_SND_PIF_B);
+		state->fifo_valid  = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_ISP_STREAM_STAT_IDX,
+			ISP_STR_MON_PORT_RCV_PIF_B); /* ISP_STR_MON_PORT_PIFB2ISP */
+		state->sink_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_ISP_STREAM_STAT_IDX,
+			ISP_STR_MON_PORT_RCV_PIF_B);
+		break;
+	case FIFO_CHANNEL_ISP0_TO_DMA0:
+		state->src_valid   = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_ISP_STREAM_STAT_IDX,
+			ISP_STR_MON_PORT_SND_DMA); /* ISP_STR_MON_PORT_ISP2DMA */
+		state->fifo_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_ISP_STREAM_STAT_IDX,
+			ISP_STR_MON_PORT_SND_DMA);
+		state->fifo_valid  = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_RCV_DMA_FR_ISP); /* MOD_STR_MON_PORT_ISP2DMA */
+		state->sink_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_RCV_DMA_FR_ISP);
+		break;
+	case FIFO_CHANNEL_DMA0_TO_ISP0:
+		state->src_valid   = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_SND_DMA2ISP); /* MOD_STR_MON_PORT_DMA2ISP */
+		state->fifo_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_SND_DMA2ISP);
+		state->fifo_valid  = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_ISP_STREAM_STAT_IDX,
+			ISP_STR_MON_PORT_RCV_DMA); /* ISP_STR_MON_PORT_DMA2ISP */
+		state->sink_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_ISP_STREAM_STAT_IDX,
+			ISP_STR_MON_PORT_RCV_DMA);
+		break;
+	case FIFO_CHANNEL_ISP0_TO_GDC0:
+		state->src_valid   = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_ISP_STREAM_STAT_IDX,
+			ISP_STR_MON_PORT_SND_GDC); /* ISP_STR_MON_PORT_ISP2GDC1 */
+		state->fifo_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_ISP_STREAM_STAT_IDX,
+			ISP_STR_MON_PORT_SND_GDC);
+		state->fifo_valid  = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_RCV_GDC); /* MOD_STR_MON_PORT_CELLS2GDC1 */
+		state->sink_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_RCV_GDC);
+		break;
+	case FIFO_CHANNEL_GDC0_TO_ISP0:
+		state->fifo_valid  = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_SND_GDC); /* MOD_STR_MON_PORT_GDC12CELLS */
+		state->sink_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_SND_GDC);
+		state->src_valid   = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_ISP_STREAM_STAT_IDX,
+			ISP_STR_MON_PORT_RCV_GDC); /* ISP_STR_MON_PORT_GDC12ISP */
+		state->fifo_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_ISP_STREAM_STAT_IDX,
+			ISP_STR_MON_PORT_RCV_GDC);
+		break;
+	case FIFO_CHANNEL_ISP0_TO_GDC1:
+		state->src_valid   = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_ISP_STREAM_STAT_IDX,
+			ISP_STR_MON_PORT_ISP2GDC2);
+		state->fifo_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_ISP_STREAM_STAT_IDX,
+			ISP_STR_MON_PORT_ISP2GDC2);
+		state->fifo_valid  = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_CELLS2GDC2);
+		state->sink_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_CELLS2GDC2);
+		break;
+	case FIFO_CHANNEL_GDC1_TO_ISP0:
+		state->fifo_valid  = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_GDC22CELLS);
+		state->sink_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_GDC22CELLS);
+		state->src_valid   = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_ISP_STREAM_STAT_IDX,
+			ISP_STR_MON_PORT_GDC22ISP);
+		state->fifo_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_ISP_STREAM_STAT_IDX,
+			ISP_STR_MON_PORT_GDC22ISP);
+		break;
+	case FIFO_CHANNEL_ISP0_TO_HOST0:
+		state->src_valid   = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_ISP_STREAM_STAT_IDX,
+			ISP_STR_MON_PORT_SND_GPD); /* ISP_STR_MON_PORT_ISP2GPD */
+		state->fifo_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_ISP_STREAM_STAT_IDX,
+			ISP_STR_MON_PORT_SND_GPD);
+		{
+		hrt_data	value = ia_css_device_load_uint32(0x0000000000380014ULL);
+		state->fifo_valid  = !_hrt_get_bit(value, 0);
+		state->sink_accept = false; /* no monitor connected */
+		}
+		break;
+	case FIFO_CHANNEL_HOST0_TO_ISP0:
+		{
+		hrt_data	value = ia_css_device_load_uint32(0x000000000038001CULL);
+		state->fifo_valid  = false; /* no monitor connected */
+		state->sink_accept = !_hrt_get_bit(value, 0);
+		}
+		state->src_valid   = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_ISP_STREAM_STAT_IDX,
+			ISP_STR_MON_PORT_RCV_GPD); /* ISP_STR_MON_PORT_FA2ISP */
+		state->fifo_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_ISP_STREAM_STAT_IDX,
+			ISP_STR_MON_PORT_RCV_GPD);
+		break;
+	case FIFO_CHANNEL_SP0_TO_IF0:
+		state->src_valid   = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_SP_STREAM_STAT_IDX,
+			SP_STR_MON_PORT_SND_PIF_A); /* SP_STR_MON_PORT_SP2PIFA */
+		state->fifo_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_SP_STREAM_STAT_IDX,
+			SP_STR_MON_PORT_SND_PIF_A);
+		state->fifo_valid  = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_RCV_PIF_A); /* MOD_STR_MON_PORT_CELLS2PIFA */
+		state->sink_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_RCV_PIF_A);
+		break;
+	case FIFO_CHANNEL_IF0_TO_SP0:
+		state->src_valid   = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_SND_PIF_A); /* MOD_STR_MON_PORT_PIFA2CELLS */
+		state->fifo_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_SND_PIF_A);
+		state->fifo_valid  = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_SP_STREAM_STAT_IDX,
+			SP_STR_MON_PORT_RCV_PIF_A); /* SP_STR_MON_PORT_PIFA2SP */
+		state->sink_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_SP_STREAM_STAT_IDX,
+			SP_STR_MON_PORT_RCV_PIF_A);
+		break;
+	case FIFO_CHANNEL_SP0_TO_IF1:
+		state->src_valid   = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_SP_STREAM_STAT_IDX,
+			SP_STR_MON_PORT_SND_PIF_B); /* SP_STR_MON_PORT_SP2PIFB */
+		state->fifo_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_SP_STREAM_STAT_IDX,
+			SP_STR_MON_PORT_SND_PIF_B);
+		state->fifo_valid  = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_RCV_PIF_B); /* MOD_STR_MON_PORT_CELLS2PIFB */
+		state->sink_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_RCV_PIF_B);
+		break;
+	case FIFO_CHANNEL_IF1_TO_SP0:
+		state->src_valid   = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_SND_PIF_B); /* MOD_STR_MON_PORT_PIFB2CELLS */
+		state->fifo_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_SND_PIF_B);
+		state->fifo_valid  = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_SP_STREAM_STAT_IDX,
+			ISP_STR_MON_PORT_RCV_PIF_B); /* SP_STR_MON_PORT_PIFB2SP */
+		state->sink_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_SP_STREAM_STAT_IDX,
+			ISP_STR_MON_PORT_RCV_PIF_B);
+		break;
+	case FIFO_CHANNEL_SP0_TO_IF2:
+		state->src_valid   = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_SP_STREAM_STAT_IDX,
+			SP_STR_MON_PORT_SND_SIF); /* SP_STR_MON_PORT_SP2SIF */
+		state->fifo_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_SP_STREAM_STAT_IDX,
+			SP_STR_MON_PORT_SND_SIF);
+		state->fifo_valid  = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_RCV_SIF); /* MOD_STR_MON_PORT_SP2SIF */
+		state->sink_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_RCV_SIF);
+		break;
+	case FIFO_CHANNEL_IF2_TO_SP0:
+		state->src_valid   = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_SND_SIF); /* MOD_STR_MON_PORT_SIF2SP */
+		state->fifo_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_SND_SIF);
+		state->fifo_valid  = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_SP_STREAM_STAT_IDX,
+			SP_STR_MON_PORT_RCV_SIF); /* SP_STR_MON_PORT_SIF2SP */
+		state->sink_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_SP_STREAM_STAT_IDX,
+			SP_STR_MON_PORT_RCV_SIF);
+		break;
+	case FIFO_CHANNEL_SP0_TO_DMA0:
+		state->src_valid   = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_SP_STREAM_STAT_IDX,
+			SP_STR_MON_PORT_SND_DMA); /* SP_STR_MON_PORT_SP2DMA */
+		state->fifo_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_SP_STREAM_STAT_IDX,
+			SP_STR_MON_PORT_SND_DMA);
+		state->fifo_valid  = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_RCV_DMA_FR_SP); /* MOD_STR_MON_PORT_SP2DMA */
+		state->sink_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_RCV_DMA_FR_SP);
+		break;
+	case FIFO_CHANNEL_DMA0_TO_SP0:
+		state->src_valid   = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_SND_DMA2SP); /* MOD_STR_MON_PORT_DMA2SP */
+		state->fifo_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_SND_DMA2SP);
+		state->fifo_valid  = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_SP_STREAM_STAT_IDX,
+			SP_STR_MON_PORT_RCV_DMA); /* SP_STR_MON_PORT_DMA2SP */
+		state->sink_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_SP_STREAM_STAT_IDX,
+			SP_STR_MON_PORT_RCV_DMA);
+		break;
+	case FIFO_CHANNEL_SP0_TO_GDC0:
+		state->src_valid   = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_SP_STREAM_STAT_B_IDX,
+			SP_STR_MON_PORT_B_SP2GDC1);
+		state->fifo_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_SP_STREAM_STAT_B_IDX,
+			SP_STR_MON_PORT_B_SP2GDC1);
+		state->fifo_valid  = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_CELLS2GDC1);
+		state->sink_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_CELLS2GDC1);
+		break;
+	case FIFO_CHANNEL_GDC0_TO_SP0:
+		state->fifo_valid  = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_GDC12CELLS);
+		state->sink_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_GDC12CELLS);
+		state->src_valid   = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_SP_STREAM_STAT_B_IDX,
+			SP_STR_MON_PORT_B_GDC12SP);
+		state->fifo_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_SP_STREAM_STAT_B_IDX,
+			SP_STR_MON_PORT_B_GDC12SP);
+		break;
+	case FIFO_CHANNEL_SP0_TO_GDC1:
+		state->src_valid   = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_SP_STREAM_STAT_B_IDX,
+			SP_STR_MON_PORT_B_SP2GDC2);
+		state->fifo_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_SP_STREAM_STAT_B_IDX,
+			SP_STR_MON_PORT_B_SP2GDC2);
+		state->fifo_valid  = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_CELLS2GDC2);
+		state->sink_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_CELLS2GDC2);
+		break;
+	case FIFO_CHANNEL_GDC1_TO_SP0:
+		state->fifo_valid  = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_GDC22CELLS);
+		state->sink_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_GDC22CELLS);
+		state->src_valid   = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_SP_STREAM_STAT_B_IDX,
+			SP_STR_MON_PORT_B_GDC22SP);
+		state->fifo_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_SP_STREAM_STAT_B_IDX,
+			SP_STR_MON_PORT_B_GDC22SP);
+		break;
+	case FIFO_CHANNEL_SP0_TO_HOST0:
+		state->src_valid   = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_SP_STREAM_STAT_IDX,
+			SP_STR_MON_PORT_SND_GPD); /* SP_STR_MON_PORT_SP2GPD */
+		state->fifo_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_SP_STREAM_STAT_IDX,
+			SP_STR_MON_PORT_SND_GPD);
+		{
+		hrt_data	value = ia_css_device_load_uint32(0x0000000000380010ULL);
+		state->fifo_valid  = !_hrt_get_bit(value, 0);
+		state->sink_accept = false; /* no monitor connected */
+		}
+		break;
+	case FIFO_CHANNEL_HOST0_TO_SP0:
+		{
+		hrt_data	value = ia_css_device_load_uint32(0x0000000000380018ULL);
+		state->fifo_valid  = false; /* no monitor connected */
+		state->sink_accept = !_hrt_get_bit(value, 0);
+		}
+		state->src_valid   = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_SP_STREAM_STAT_IDX,
+			SP_STR_MON_PORT_RCV_GPD); /* SP_STR_MON_PORT_FA2SP */
+		state->fifo_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_SP_STREAM_STAT_IDX,
+			SP_STR_MON_PORT_RCV_GPD);
+		break;
+	case FIFO_CHANNEL_SP0_TO_STREAM2MEM0:
+		state->src_valid   = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_SP_STREAM_STAT_IDX,
+			SP_STR_MON_PORT_SND_MC); /* SP_STR_MON_PORT_SP2MC */
+		state->fifo_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_SP_STREAM_STAT_IDX,
+			SP_STR_MON_PORT_SND_MC);
+		state->fifo_valid  = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_RCV_MC); /* MOD_STR_MON_PORT_SP2MC */
+		state->sink_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_RCV_MC);
+		break;
+	case FIFO_CHANNEL_STREAM2MEM0_TO_SP0:
+		state->fifo_valid  = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_SND_MC); /* SP_STR_MON_PORT_MC2SP */
+		state->sink_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_MOD_STREAM_STAT_IDX,
+			MOD_STR_MON_PORT_SND_MC);
+		state->src_valid   = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_SP_STREAM_STAT_IDX,
+			SP_STR_MON_PORT_RCV_MC); /* MOD_STR_MON_PORT_MC2SP */
+		state->fifo_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_SP_STREAM_STAT_IDX,
+			SP_STR_MON_PORT_RCV_MC);
+		break;
+	case FIFO_CHANNEL_SP0_TO_INPUT_SYSTEM0:
+		state->src_valid   = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_SP_STREAM_STAT_IDX,
+			SP_STR_MON_PORT_SP2ISYS);
+		state->fifo_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_SP_STREAM_STAT_IDX,
+			SP_STR_MON_PORT_SP2ISYS);
+		state->fifo_valid  = false;
+		state->sink_accept = false;
+		break;
+	case FIFO_CHANNEL_INPUT_SYSTEM0_TO_SP0:
+		state->fifo_valid  = false;
+		state->sink_accept = false;
+		state->src_valid   = fifo_monitor_status_valid(ID,
+			HIVE_GP_REGS_SP_STREAM_STAT_IDX,
+			SP_STR_MON_PORT_ISYS2SP);
+		state->fifo_accept = fifo_monitor_status_accept(ID,
+			HIVE_GP_REGS_SP_STREAM_STAT_IDX,
+			SP_STR_MON_PORT_ISYS2SP);
+		break;
+	default:
+		assert(0);
+		break;
+	}
+
+	return;
+}
+
+void fifo_switch_get_state(
+	const fifo_monitor_ID_t		ID,
+	const fifo_switch_t			switch_id,
+	fifo_switch_state_t			*state)
+{
+	hrt_data		data = (hrt_data)-1;
+
+	assert(ID == FIFO_MONITOR0_ID);
+	assert(switch_id < N_FIFO_SWITCH);
+	assert(state != NULL);
+
+	(void)ID;
+
+	data = gp_device_reg_load(GP_DEVICE0_ID, FIFO_SWITCH_ADDR[switch_id]);
+
+	state->is_none = (data == HIVE_ISP_CSS_STREAM_SWITCH_NONE);
+	state->is_sp = (data == HIVE_ISP_CSS_STREAM_SWITCH_SP);
+	state->is_isp = (data == HIVE_ISP_CSS_STREAM_SWITCH_ISP);
+
+	return;
+}
+
+void fifo_monitor_get_state(
+	const fifo_monitor_ID_t		ID,
+	fifo_monitor_state_t		*state)
+{
+	fifo_channel_t	ch_id;
+	fifo_switch_t	sw_id;
+
+	assert(ID < N_FIFO_MONITOR_ID);
+	assert(state != NULL);
+
+	for (ch_id = 0; ch_id < N_FIFO_CHANNEL; ch_id++) {
+		fifo_channel_get_state(ID, ch_id,
+			&(state->fifo_channels[ch_id]));
+	}
+
+	for (sw_id = 0; sw_id < N_FIFO_SWITCH; sw_id++) {
+		fifo_switch_get_state(ID, sw_id,
+			&(state->fifo_switches[sw_id]));
+	}
+	return;
+}
+
+STORAGE_CLASS_INLINE bool fifo_monitor_status_valid (
+	const fifo_monitor_ID_t		ID,
+	const unsigned int			reg,
+	const unsigned int			port_id)
+{
+	hrt_data	data = fifo_monitor_reg_load(ID, reg);
+
+	return (data >> (((port_id * 2) + _hive_str_mon_valid_offset))) & 0x1;
+}
+
+STORAGE_CLASS_INLINE bool fifo_monitor_status_accept(
+	const fifo_monitor_ID_t		ID,
+	const unsigned int			reg,
+	const unsigned int			port_id)
+{
+	hrt_data	data = fifo_monitor_reg_load(ID, reg);
+
+	return (data >> (((port_id * 2) + _hive_str_mon_accept_offset))) & 0x1;
+}
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/fifo_monitor_local.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/fifo_monitor_local.h
new file mode 100644
index 0000000..ed2f861
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/fifo_monitor_local.h
@@ -0,0 +1,99 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __FIFO_MONITOR_LOCAL_H_INCLUDED__
+#define __FIFO_MONITOR_LOCAL_H_INCLUDED__
+
+#include <type_support.h>
+#include "fifo_monitor_global.h"
+
+#include "hive_isp_css_defs.h"	/* ISP_STR_MON_PORT_SND_SP, ... */
+
+#define _hive_str_mon_valid_offset   0
+#define _hive_str_mon_accept_offset  1
+
+#define	FIFO_CHANNEL_SP_VALID_MASK		0x55555555
+#define	FIFO_CHANNEL_SP_VALID_B_MASK	0x00000055
+#define	FIFO_CHANNEL_ISP_VALID_MASK		0x15555555
+#define	FIFO_CHANNEL_MOD_VALID_MASK		0x55555555
+
+typedef enum fifo_switch {
+	FIFO_SWITCH_IF,
+	FIFO_SWITCH_GDC0,
+	FIFO_SWITCH_GDC1,
+	N_FIFO_SWITCH
+} fifo_switch_t;
+
+typedef enum fifo_channel {
+	FIFO_CHANNEL_ISP0_TO_SP0,
+	FIFO_CHANNEL_SP0_TO_ISP0,
+	FIFO_CHANNEL_ISP0_TO_IF0,
+	FIFO_CHANNEL_IF0_TO_ISP0,
+	FIFO_CHANNEL_ISP0_TO_IF1,
+	FIFO_CHANNEL_IF1_TO_ISP0,
+	FIFO_CHANNEL_ISP0_TO_DMA0,
+	FIFO_CHANNEL_DMA0_TO_ISP0,
+	FIFO_CHANNEL_ISP0_TO_GDC0,
+	FIFO_CHANNEL_GDC0_TO_ISP0,
+	FIFO_CHANNEL_ISP0_TO_GDC1,
+	FIFO_CHANNEL_GDC1_TO_ISP0,
+	FIFO_CHANNEL_ISP0_TO_HOST0,
+	FIFO_CHANNEL_HOST0_TO_ISP0,
+	FIFO_CHANNEL_SP0_TO_IF0,
+	FIFO_CHANNEL_IF0_TO_SP0,
+	FIFO_CHANNEL_SP0_TO_IF1,
+	FIFO_CHANNEL_IF1_TO_SP0,
+	FIFO_CHANNEL_SP0_TO_IF2,
+	FIFO_CHANNEL_IF2_TO_SP0,
+	FIFO_CHANNEL_SP0_TO_DMA0,
+	FIFO_CHANNEL_DMA0_TO_SP0,
+	FIFO_CHANNEL_SP0_TO_GDC0,
+	FIFO_CHANNEL_GDC0_TO_SP0,
+	FIFO_CHANNEL_SP0_TO_GDC1,
+	FIFO_CHANNEL_GDC1_TO_SP0,
+	FIFO_CHANNEL_SP0_TO_HOST0,
+	FIFO_CHANNEL_HOST0_TO_SP0,
+	FIFO_CHANNEL_SP0_TO_STREAM2MEM0,
+	FIFO_CHANNEL_STREAM2MEM0_TO_SP0,
+	FIFO_CHANNEL_SP0_TO_INPUT_SYSTEM0,
+	FIFO_CHANNEL_INPUT_SYSTEM0_TO_SP0,
+/*
+ * No clue what this is
+ *
+	FIFO_CHANNEL_SP0_TO_IRQ0,
+	FIFO_CHANNEL_IRQ0_TO_SP0,
+ */
+	N_FIFO_CHANNEL
+} fifo_channel_t;
+
+struct fifo_channel_state_s {
+	bool	src_valid;
+	bool	fifo_accept;
+	bool	fifo_valid;
+	bool	sink_accept;
+};
+
+/* The switch is tri-state */
+struct fifo_switch_state_s {
+	bool	is_none;
+	bool	is_isp;
+	bool	is_sp;
+};
+
+struct fifo_monitor_state_s {
+	struct fifo_channel_state_s	fifo_channels[N_FIFO_CHANNEL];
+	struct fifo_switch_state_s	fifo_switches[N_FIFO_SWITCH];
+};
+
+#endif /* __FIFO_MONITOR_LOCAL_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/fifo_monitor_private.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/fifo_monitor_private.h
new file mode 100644
index 0000000..618b2f7
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/fifo_monitor_private.h
@@ -0,0 +1,79 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __FIFO_MONITOR_PRIVATE_H_INCLUDED__
+#define __FIFO_MONITOR_PRIVATE_H_INCLUDED__
+
+#include "fifo_monitor_public.h"
+
+#define __INLINE_GP_DEVICE__
+#include "gp_device.h"
+
+#include "device_access.h"
+
+#include "assert_support.h"
+
+#ifdef __INLINE_FIFO_MONITOR__
+extern const unsigned int FIFO_SWITCH_ADDR[N_FIFO_SWITCH];
+#endif
+
+STORAGE_CLASS_FIFO_MONITOR_C void fifo_switch_set(
+	const fifo_monitor_ID_t		ID,
+	const fifo_switch_t			switch_id,
+	const hrt_data				sel)
+{
+assert(ID == FIFO_MONITOR0_ID);
+assert(FIFO_MONITOR_BASE[ID] != (hrt_address)-1);
+assert(switch_id < N_FIFO_SWITCH);
+	(void)ID;
+
+	gp_device_reg_store(GP_DEVICE0_ID, FIFO_SWITCH_ADDR[switch_id], sel);
+
+return;
+}
+
+STORAGE_CLASS_FIFO_MONITOR_C hrt_data fifo_switch_get(
+	const fifo_monitor_ID_t		ID,
+	const fifo_switch_t			switch_id)
+{
+assert(ID == FIFO_MONITOR0_ID);
+assert(FIFO_MONITOR_BASE[ID] != (hrt_address)-1);
+assert(switch_id < N_FIFO_SWITCH);
+	(void)ID;
+
+return gp_device_reg_load(GP_DEVICE0_ID, FIFO_SWITCH_ADDR[switch_id]);
+}
+
+
+STORAGE_CLASS_FIFO_MONITOR_C void fifo_monitor_reg_store(
+	const fifo_monitor_ID_t		ID,
+	const unsigned int			reg,
+	const hrt_data				value)
+{
+assert(ID < N_FIFO_MONITOR_ID);
+assert(FIFO_MONITOR_BASE[ID] != (hrt_address)-1);
+	ia_css_device_store_uint32(FIFO_MONITOR_BASE[ID] + reg*sizeof(hrt_data), value);
+return;
+}
+
+STORAGE_CLASS_FIFO_MONITOR_C hrt_data fifo_monitor_reg_load(
+	const fifo_monitor_ID_t		ID,
+	const unsigned int			reg)
+{
+assert(ID < N_FIFO_MONITOR_ID);
+assert(FIFO_MONITOR_BASE[ID] != (hrt_address)-1);
+return ia_css_device_load_uint32(FIFO_MONITOR_BASE[ID] + reg*sizeof(hrt_data));
+}
+
+#endif /* __FIFO_MONITOR_PRIVATE_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/gdc.c b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/gdc.c
new file mode 100644
index 0000000..69fa616
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/gdc.c
@@ -0,0 +1,127 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+/* The name "gdc.h is already taken" */
+#include "gdc_device.h"
+
+#include "device_access.h"
+
+#include "assert_support.h"
+
+/*
+ * Local function declarations
+ */
+STORAGE_CLASS_INLINE void gdc_reg_store(
+	const gdc_ID_t		ID,
+	const unsigned int	reg,
+	const hrt_data		value);
+
+STORAGE_CLASS_INLINE hrt_data gdc_reg_load(
+	const gdc_ID_t		ID,
+	const unsigned int	reg);
+
+
+#ifndef __INLINE_GDC__
+#include "gdc_private.h"
+#endif /* __INLINE_GDC__ */
+
+/*
+ * Exported function implementations
+ */
+void gdc_lut_store(
+	const gdc_ID_t		ID,
+	const int			data[4][HRT_GDC_N])
+{
+	unsigned int i, lut_offset = HRT_GDC_LUT_IDX;
+
+	assert(ID < N_GDC_ID);
+	assert(HRT_GDC_LUT_COEFF_OFFSET <= (4*sizeof(hrt_data)));
+
+	for (i = 0; i < HRT_GDC_N; i++) {
+		hrt_data	entry_0 = data[0][i] & HRT_GDC_BCI_COEF_MASK;
+		hrt_data	entry_1 = data[1][i] & HRT_GDC_BCI_COEF_MASK;
+		hrt_data	entry_2 = data[2][i] & HRT_GDC_BCI_COEF_MASK;
+		hrt_data	entry_3 = data[3][i] & HRT_GDC_BCI_COEF_MASK;
+
+		hrt_data	word_0 = entry_0 |
+			(entry_1 << HRT_GDC_LUT_COEFF_OFFSET);
+		hrt_data	word_1 = entry_2 |
+			(entry_3 << HRT_GDC_LUT_COEFF_OFFSET);
+
+		gdc_reg_store(ID, lut_offset++, word_0);
+		gdc_reg_store(ID, lut_offset++, word_1);
+	}
+return;
+}
+
+/*
+ * Input LUT format:
+ * c0[0-1023], c1[0-1023], c2[0-1023] c3[0-1023]
+ *
+ * Output LUT format (interleaved):
+ * c0[0], c1[0], c2[0], c3[0], c0[1], c1[1], c2[1], c3[1], ....
+ * c0[1023], c1[1023], c2[1023], c3[1023]
+ *
+ * The first format needs c0[0], c1[0] (which are 1024 words apart)
+ * to program gdc LUT registers. This makes it difficult to do piecemeal
+ * reads in SP side gdc_lut_store
+ *
+ * Interleaved format allows use of contiguous bytes to store into
+ * gdc LUT registers.
+ *
+ * See gdc_lut_store() definition in host/gdc.c vs sp/gdc_private.h
+ *
+ */
+void gdc_lut_convert_to_isp_format(const int in_lut[4][HRT_GDC_N],
+	int out_lut[4][HRT_GDC_N])
+{
+	unsigned int i;
+	int *out = (int *)out_lut;
+
+	for (i = 0; i < HRT_GDC_N; i++) {
+		out[0] = in_lut[0][i];
+		out[1] = in_lut[1][i];
+		out[2] = in_lut[2][i];
+		out[3] = in_lut[3][i];
+		out += 4;
+	}
+}
+
+int gdc_get_unity(
+	const gdc_ID_t		ID)
+{
+	assert(ID < N_GDC_ID);
+	(void)ID;
+return (int)(1UL << HRT_GDC_FRAC_BITS);
+}
+
+
+/*
+ * Local function implementations
+ */
+STORAGE_CLASS_INLINE void gdc_reg_store(
+	const gdc_ID_t		ID,
+	const unsigned int	reg,
+	const hrt_data		value)
+{
+	ia_css_device_store_uint32(GDC_BASE[ID] + reg*sizeof(hrt_data), value);
+return;
+}
+
+STORAGE_CLASS_INLINE hrt_data gdc_reg_load(
+	const gdc_ID_t		ID,
+	const unsigned int	reg)
+{
+return ia_css_device_load_uint32(GDC_BASE[ID] + reg*sizeof(hrt_data));
+}
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/gdc_local.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/gdc_local.h
new file mode 100644
index 0000000..0c6de86
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/gdc_local.h
@@ -0,0 +1,20 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __GDC_LOCAL_H_INCLUDED__
+#define __GDC_LOCAL_H_INCLUDED__
+
+#include "gdc_global.h"
+
+#endif /* __GDC_LOCAL_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/gdc_private.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/gdc_private.h
new file mode 100644
index 0000000..f7dec75
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/gdc_private.h
@@ -0,0 +1,20 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __GDC_PRIVATE_H_INCLUDED__
+#define __GDC_PRIVATE_H_INCLUDED__
+
+#include "gdc_public.h"
+
+#endif /* __GDC_PRIVATE_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/gp_device.c b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/gp_device.c
new file mode 100644
index 0000000..9a34ac0
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/gp_device.c
@@ -0,0 +1,108 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#include "assert_support.h"
+#include "gp_device.h"
+
+#ifndef __INLINE_GP_DEVICE__
+#include "gp_device_private.h"
+#endif /* __INLINE_GP_DEVICE__ */
+
+void gp_device_get_state(
+	const gp_device_ID_t		ID,
+	gp_device_state_t			*state)
+{
+	assert(ID < N_GP_DEVICE_ID);
+	assert(state != NULL);
+
+	state->syncgen_enable = gp_device_reg_load(ID,
+		_REG_GP_SYNCGEN_ENABLE_ADDR);
+	state->syncgen_free_running = gp_device_reg_load(ID,
+		_REG_GP_SYNCGEN_FREE_RUNNING_ADDR);
+	state->syncgen_pause = gp_device_reg_load(ID,
+		_REG_GP_SYNCGEN_PAUSE_ADDR);
+	state->nr_frames = gp_device_reg_load(ID,
+		_REG_GP_NR_FRAMES_ADDR);
+	state->syngen_nr_pix = gp_device_reg_load(ID,
+		_REG_GP_SYNGEN_NR_PIX_ADDR);
+	state->syngen_nr_pix = gp_device_reg_load(ID,
+		_REG_GP_SYNGEN_NR_PIX_ADDR);
+	state->syngen_nr_lines = gp_device_reg_load(ID,
+		_REG_GP_SYNGEN_NR_LINES_ADDR);
+	state->syngen_hblank_cycles = gp_device_reg_load(ID,
+		_REG_GP_SYNGEN_HBLANK_CYCLES_ADDR);
+	state->syngen_vblank_cycles = gp_device_reg_load(ID,
+		_REG_GP_SYNGEN_VBLANK_CYCLES_ADDR);
+	state->isel_sof = gp_device_reg_load(ID,
+		_REG_GP_ISEL_SOF_ADDR);
+	state->isel_eof = gp_device_reg_load(ID,
+		_REG_GP_ISEL_EOF_ADDR);
+	state->isel_sol = gp_device_reg_load(ID,
+		_REG_GP_ISEL_SOL_ADDR);
+	state->isel_eol = gp_device_reg_load(ID,
+		_REG_GP_ISEL_EOL_ADDR);
+	state->isel_lfsr_enable = gp_device_reg_load(ID,
+		_REG_GP_ISEL_LFSR_ENABLE_ADDR);
+	state->isel_lfsr_enable_b = gp_device_reg_load(ID,
+		_REG_GP_ISEL_LFSR_ENABLE_B_ADDR);
+	state->isel_lfsr_reset_value = gp_device_reg_load(ID,
+		_REG_GP_ISEL_LFSR_RESET_VALUE_ADDR);
+	state->isel_tpg_enable = gp_device_reg_load(ID,
+		_REG_GP_ISEL_TPG_ENABLE_ADDR);
+	state->isel_tpg_enable_b = gp_device_reg_load(ID,
+		_REG_GP_ISEL_TPG_ENABLE_B_ADDR);
+	state->isel_hor_cnt_mask = gp_device_reg_load(ID,
+		_REG_GP_ISEL_HOR_CNT_MASK_ADDR);
+	state->isel_ver_cnt_mask = gp_device_reg_load(ID,
+		_REG_GP_ISEL_VER_CNT_MASK_ADDR);
+	state->isel_xy_cnt_mask = gp_device_reg_load(ID,
+		_REG_GP_ISEL_XY_CNT_MASK_ADDR);
+	state->isel_hor_cnt_delta = gp_device_reg_load(ID,
+		_REG_GP_ISEL_HOR_CNT_DELTA_ADDR);
+	state->isel_ver_cnt_delta = gp_device_reg_load(ID,
+		_REG_GP_ISEL_VER_CNT_DELTA_ADDR);
+	state->isel_tpg_mode = gp_device_reg_load(ID,
+		_REG_GP_ISEL_TPG_MODE_ADDR);
+	state->isel_tpg_red1 = gp_device_reg_load(ID,
+		_REG_GP_ISEL_TPG_RED1_ADDR);
+	state->isel_tpg_green1 = gp_device_reg_load(ID,
+		_REG_GP_ISEL_TPG_GREEN1_ADDR);
+	state->isel_tpg_blue1 = gp_device_reg_load(ID,
+		_REG_GP_ISEL_TPG_BLUE1_ADDR);
+	state->isel_tpg_red2 = gp_device_reg_load(ID,
+		_REG_GP_ISEL_TPG_RED2_ADDR);
+	state->isel_tpg_green2 = gp_device_reg_load(ID,
+		_REG_GP_ISEL_TPG_GREEN2_ADDR);
+	state->isel_tpg_blue2 = gp_device_reg_load(ID,
+		_REG_GP_ISEL_TPG_BLUE2_ADDR);
+	state->isel_ch_id = gp_device_reg_load(ID,
+		_REG_GP_ISEL_CH_ID_ADDR);
+	state->isel_fmt_type = gp_device_reg_load(ID,
+		_REG_GP_ISEL_FMT_TYPE_ADDR);
+	state->isel_data_sel = gp_device_reg_load(ID,
+		_REG_GP_ISEL_DATA_SEL_ADDR);
+	state->isel_sband_sel = gp_device_reg_load(ID,
+		_REG_GP_ISEL_SBAND_SEL_ADDR);
+	state->isel_sync_sel = gp_device_reg_load(ID,
+		_REG_GP_ISEL_SYNC_SEL_ADDR);
+	state->syncgen_hor_cnt = gp_device_reg_load(ID,
+		_REG_GP_SYNCGEN_HOR_CNT_ADDR);
+	state->syncgen_ver_cnt = gp_device_reg_load(ID,
+		_REG_GP_SYNCGEN_VER_CNT_ADDR);
+	state->syncgen_frame_cnt = gp_device_reg_load(ID,
+		_REG_GP_SYNCGEN_FRAME_CNT_ADDR);
+	state->soft_reset = gp_device_reg_load(ID,
+		_REG_GP_SOFT_RESET_ADDR);
+return;
+}
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/gp_device_local.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/gp_device_local.h
new file mode 100644
index 0000000..113d5ed
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/gp_device_local.h
@@ -0,0 +1,143 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __GP_DEVICE_LOCAL_H_INCLUDED__
+#define __GP_DEVICE_LOCAL_H_INCLUDED__
+
+#include "gp_device_global.h"
+
+/* @ GP_REGS_BASE -> GP_DEVICE_BASE */
+#define _REG_GP_SDRAM_WAKEUP_ADDR					0x00
+#define _REG_GP_IDLE_ADDR							0x04
+/* #define _REG_GP_IRQ_REQ0_ADDR					0x08 */
+/* #define _REG_GP_IRQ_REQ1_ADDR					0x0C */
+#define _REG_GP_SP_STREAM_STAT_ADDR					0x10
+#define _REG_GP_SP_STREAM_STAT_B_ADDR				0x14
+#define _REG_GP_ISP_STREAM_STAT_ADDR				0x18
+#define _REG_GP_MOD_STREAM_STAT_ADDR				0x1C
+#define _REG_GP_SP_STREAM_STAT_IRQ_COND_ADDR		0x20
+#define _REG_GP_SP_STREAM_STAT_B_IRQ_COND_ADDR		0x24
+#define _REG_GP_ISP_STREAM_STAT_IRQ_COND_ADDR		0x28
+#define _REG_GP_MOD_STREAM_STAT_IRQ_COND_ADDR		0x2C
+#define _REG_GP_SP_STREAM_STAT_IRQ_ENABLE_ADDR		0x30
+#define _REG_GP_SP_STREAM_STAT_B_IRQ_ENABLE_ADDR	0x34
+#define _REG_GP_ISP_STREAM_STAT_IRQ_ENABLE_ADDR		0x38
+#define _REG_GP_MOD_STREAM_STAT_IRQ_ENABLE_ADDR		0x3C
+/*
+#define _REG_GP_SWITCH_IF_ADDR						0x40
+#define _REG_GP_SWITCH_GDC1_ADDR					0x44
+#define _REG_GP_SWITCH_GDC2_ADDR					0x48
+*/
+#define _REG_GP_SLV_REG_RST_ADDR					0x50
+#define _REG_GP_SWITCH_ISYS2401_ADDR				0x54
+
+/* @ INPUT_FORMATTER_BASE -> GP_DEVICE_BASE */
+/*
+#define _REG_GP_IFMT_input_switch_lut_reg0			0x00030800
+#define _REG_GP_IFMT_input_switch_lut_reg1			0x00030804
+#define _REG_GP_IFMT_input_switch_lut_reg2			0x00030808
+#define _REG_GP_IFMT_input_switch_lut_reg3			0x0003080C
+#define _REG_GP_IFMT_input_switch_lut_reg4			0x00030810
+#define _REG_GP_IFMT_input_switch_lut_reg5			0x00030814
+#define _REG_GP_IFMT_input_switch_lut_reg6			0x00030818
+#define _REG_GP_IFMT_input_switch_lut_reg7			0x0003081C
+#define _REG_GP_IFMT_input_switch_fsync_lut			0x00030820
+#define _REG_GP_IFMT_srst							0x00030824
+#define _REG_GP_IFMT_slv_reg_srst					0x00030828
+#define _REG_GP_IFMT_input_switch_ch_id_fmt_type	0x0003082C
+*/
+/* @ GP_DEVICE_BASE */
+/*
+#define _REG_GP_SYNCGEN_ENABLE_ADDR					0x00090000
+#define _REG_GP_SYNCGEN_FREE_RUNNING_ADDR			0x00090004
+#define _REG_GP_SYNCGEN_PAUSE_ADDR					0x00090008
+#define _REG_GP_NR_FRAMES_ADDR						0x0009000C
+#define _REG_GP_SYNGEN_NR_PIX_ADDR					0x00090010
+#define _REG_GP_SYNGEN_NR_LINES_ADDR				0x00090014
+#define _REG_GP_SYNGEN_HBLANK_CYCLES_ADDR			0x00090018
+#define _REG_GP_SYNGEN_VBLANK_CYCLES_ADDR			0x0009001C
+#define _REG_GP_ISEL_SOF_ADDR						0x00090020
+#define _REG_GP_ISEL_EOF_ADDR						0x00090024
+#define _REG_GP_ISEL_SOL_ADDR						0x00090028
+#define _REG_GP_ISEL_EOL_ADDR						0x0009002C
+#define _REG_GP_ISEL_LFSR_ENABLE_ADDR				0x00090030
+#define _REG_GP_ISEL_LFSR_ENABLE_B_ADDR				0x00090034
+#define _REG_GP_ISEL_LFSR_RESET_VALUE_ADDR			0x00090038
+#define _REG_GP_ISEL_TPG_ENABLE_ADDR				0x0009003C
+#define _REG_GP_ISEL_TPG_ENABLE_B_ADDR				0x00090040
+#define _REG_GP_ISEL_HOR_CNT_MASK_ADDR				0x00090044
+#define _REG_GP_ISEL_VER_CNT_MASK_ADDR				0x00090048
+#define _REG_GP_ISEL_XY_CNT_MASK_ADDR				0x0009004C
+#define _REG_GP_ISEL_HOR_CNT_DELTA_ADDR				0x00090050
+#define _REG_GP_ISEL_VER_CNT_DELTA_ADDR				0x00090054
+#define _REG_GP_ISEL_TPG_MODE_ADDR					0x00090058
+#define _REG_GP_ISEL_TPG_RED1_ADDR					0x0009005C
+#define _REG_GP_ISEL_TPG_GREEN1_ADDR				0x00090060
+#define _REG_GP_ISEL_TPG_BLUE1_ADDR					0x00090064
+#define _REG_GP_ISEL_TPG_RED2_ADDR					0x00090068
+#define _REG_GP_ISEL_TPG_GREEN2_ADDR				0x0009006C
+#define _REG_GP_ISEL_TPG_BLUE2_ADDR					0x00090070
+#define _REG_GP_ISEL_CH_ID_ADDR						0x00090074
+#define _REG_GP_ISEL_FMT_TYPE_ADDR					0x00090078
+#define _REG_GP_ISEL_DATA_SEL_ADDR					0x0009007C
+#define _REG_GP_ISEL_SBAND_SEL_ADDR					0x00090080
+#define _REG_GP_ISEL_SYNC_SEL_ADDR					0x00090084
+#define _REG_GP_SYNCGEN_HOR_CNT_ADDR				0x00090088
+#define _REG_GP_SYNCGEN_VER_CNT_ADDR				0x0009008C
+#define _REG_GP_SYNCGEN_FRAME_CNT_ADDR				0x00090090
+#define _REG_GP_SOFT_RESET_ADDR						0x00090094
+*/
+
+struct gp_device_state_s {
+	int syncgen_enable;
+	int syncgen_free_running;
+	int syncgen_pause;
+	int nr_frames;
+	int syngen_nr_pix;
+	int syngen_nr_lines;
+	int syngen_hblank_cycles;
+	int syngen_vblank_cycles;
+	int isel_sof;
+	int isel_eof;
+	int isel_sol;
+	int isel_eol;
+	int isel_lfsr_enable;
+	int isel_lfsr_enable_b;
+	int isel_lfsr_reset_value;
+	int isel_tpg_enable;
+	int isel_tpg_enable_b;
+	int isel_hor_cnt_mask;
+	int isel_ver_cnt_mask;
+	int isel_xy_cnt_mask;
+	int isel_hor_cnt_delta;
+	int isel_ver_cnt_delta;
+	int isel_tpg_mode;
+	int isel_tpg_red1;
+	int isel_tpg_green1;
+	int isel_tpg_blue1;
+	int isel_tpg_red2;
+	int isel_tpg_green2;
+	int isel_tpg_blue2;
+	int isel_ch_id;
+	int isel_fmt_type;
+	int isel_data_sel;
+	int isel_sband_sel;
+	int isel_sync_sel;
+	int syncgen_hor_cnt;
+	int syncgen_ver_cnt;
+	int syncgen_frame_cnt;
+	int soft_reset;
+};
+
+#endif /* __GP_DEVICE_LOCAL_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/gp_device_private.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/gp_device_private.h
new file mode 100644
index 0000000..bce1fdf
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/gp_device_private.h
@@ -0,0 +1,46 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __GP_DEVICE_PRIVATE_H_INCLUDED__
+#define __GP_DEVICE_PRIVATE_H_INCLUDED__
+
+#include "gp_device_public.h"
+
+#include "device_access.h"
+
+#include "assert_support.h"
+
+STORAGE_CLASS_GP_DEVICE_C void gp_device_reg_store(
+	const gp_device_ID_t	ID,
+	const unsigned int		reg_addr,
+	const hrt_data			value)
+{
+assert(ID < N_GP_DEVICE_ID);
+assert(GP_DEVICE_BASE[ID] != (hrt_address)-1);
+assert((reg_addr % sizeof(hrt_data)) == 0);
+	ia_css_device_store_uint32(GP_DEVICE_BASE[ID] + reg_addr, value);
+return;
+}
+
+STORAGE_CLASS_GP_DEVICE_C hrt_data gp_device_reg_load(
+	const gp_device_ID_t	ID,
+	const hrt_address	reg_addr)
+{
+assert(ID < N_GP_DEVICE_ID);
+assert(GP_DEVICE_BASE[ID] != (hrt_address)-1);
+assert((reg_addr % sizeof(hrt_data)) == 0);
+return ia_css_device_load_uint32(GP_DEVICE_BASE[ID] + reg_addr);
+}
+
+#endif /* __GP_DEVICE_PRIVATE_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/gp_timer.c b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/gp_timer.c
new file mode 100644
index 0000000..5a4eabf
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/gp_timer.c
@@ -0,0 +1,70 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#include <type_support.h> /*uint32_t */
+#include "gp_timer.h"   /*system_local.h,
+			  gp_timer_public.h*/
+
+#ifndef __INLINE_GP_TIMER__
+#include "gp_timer_private.h"  /*device_access.h*/
+#endif /* __INLINE_GP_TIMER__ */
+#include "system_local.h"
+
+/** FIXME: not sure if reg_load(), reg_store() should be API.
+ */
+static uint32_t
+gp_timer_reg_load(uint32_t reg);
+
+static void
+gp_timer_reg_store(uint32_t reg, uint32_t value);
+
+uint32_t
+gp_timer_reg_load(uint32_t reg)
+{
+	return ia_css_device_load_uint32(
+			GP_TIMER_BASE +
+			(reg * sizeof(uint32_t)));
+}
+
+static void
+gp_timer_reg_store(uint32_t reg, uint32_t value)
+{
+	ia_css_device_store_uint32((GP_TIMER_BASE +
+				    (reg * sizeof(uint32_t))),
+				    value);
+}
+
+void gp_timer_init(gp_timer_ID_t ID)
+{
+	/* set_overall_enable*/
+	gp_timer_reg_store(_REG_GP_TIMER_OVERALL_ENABLE, 1);
+
+	/*set enable*/
+	gp_timer_reg_store(_REG_GP_TIMER_ENABLE_ID(ID), 1);
+
+	/* set signal select */
+	gp_timer_reg_store(_REG_GP_TIMER_SIGNAL_SELECT_ID(ID), GP_TIMER_SIGNAL_SELECT);
+
+	/*set count type */
+	gp_timer_reg_store(_REG_GP_TIMER_COUNT_TYPE_ID(ID), GP_TIMER_COUNT_TYPE_LOW);
+
+	/*reset gp timer */
+	gp_timer_reg_store(_REG_GP_TIMER_RESET_REG, 0xFF);
+}
+
+uint32_t
+gp_timer_read(gp_timer_ID_t ID)
+{
+	return	gp_timer_reg_load(_REG_GP_TIMER_VALUE_ID(ID));
+}
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/gp_timer_local.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/gp_timer_local.h
new file mode 100644
index 0000000..19ce35d8
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/gp_timer_local.h
@@ -0,0 +1,45 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __GP_TIMER_LOCAL_H_INCLUDED__
+#define  __GP_TIMER_LOCAL_H_INCLUDED__
+
+#include "gp_timer_global.h" /*GP_TIMER_SEL
+				GP_TIMER_SIGNAL_SELECT*/
+
+#include "gp_timer_defs.h"    /*HIVE_GP_TIMER_xxx registers*/
+#include "hive_isp_css_defs.h" /*HIVE_GP_TIMER_NUM_COUNTERS
+				 HIVE_GP_TIMER_NUM_IRQS*/
+
+#define _REG_GP_TIMER_RESET_REG HIVE_GP_TIMER_RESET_REG_IDX
+#define _REG_GP_TIMER_OVERALL_ENABLE HIVE_GP_TIMER_OVERALL_ENABLE_REG_IDX
+
+/*Register offsets for timers [1,7] can be obtained
+ * by adding (GP_TIMERx_ID * sizeof(uint32_t))*/
+#define _REG_GP_TIMER_ENABLE_ID(timer_id)        HIVE_GP_TIMER_ENABLE_REG_IDX(timer_id)
+#define _REG_GP_TIMER_VALUE_ID(timer_id)  	 HIVE_GP_TIMER_VALUE_REG_IDX(timer_id, HIVE_GP_TIMER_NUM_COUNTERS)
+#define _REG_GP_TIMER_COUNT_TYPE_ID(timer_id)    HIVE_GP_TIMER_COUNT_TYPE_REG_IDX(timer_id, HIVE_GP_TIMER_NUM_COUNTERS)
+#define _REG_GP_TIMER_SIGNAL_SELECT_ID(timer_id) HIVE_GP_TIMER_SIGNAL_SELECT_REG_IDX(timer_id, HIVE_GP_TIMER_NUM_COUNTERS)
+
+
+#define _REG_GP_TIMER_IRQ_TRIGGER_VALUE_ID(irq_id) HIVE_GP_TIMER_IRQ_TRIGGER_VALUE_REG_IDX(irq_id, HIVE_GP_TIMER_NUM_COUNTERS)
+
+#define _REG_GP_TIMER_IRQ_TIMER_SELECT_ID(irq_id)   \
+	HIVE_GP_TIMER_IRQ_TIMER_SELECT_REG_IDX(irq_id, HIVE_GP_TIMER_NUM_COUNTERS, HIVE_GP_TIMER_NUM_IRQS)
+
+#define _REG_GP_TIMER_IRQ_ENABLE_ID(irq_id) \
+	HIVE_GP_TIMER_IRQ_ENABLE_REG_IDX(irq_id, HIVE_GP_TIMER_NUM_COUNTERS, HIVE_GP_TIMER_NUM_IRQS)
+
+
+#endif  /*__GP_TIMER_LOCAL_H_INCLUDED__*/
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/gp_timer_private.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/gp_timer_private.h
new file mode 100644
index 0000000..705be5e
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/gp_timer_private.h
@@ -0,0 +1,22 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __GP_TIMER_PRIVATE_H_INCLUDED__
+#define __GP_TIMER_PRIVATE_H_INCLUDED__
+
+#include "gp_timer_public.h"
+#include "device_access.h"
+#include "assert_support.h"
+
+#endif /* __GP_TIMER_PRIVATE_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/gpio_local.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/gpio_local.h
new file mode 100644
index 0000000..f4652b7
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/gpio_local.h
@@ -0,0 +1,20 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __GPIO_LOCAL_H_INCLUDED__
+#define __GPIO_LOCAL_H_INCLUDED__
+
+#include "gpio_global.h"
+
+#endif /* __GPIO_LOCAL_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/gpio_private.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/gpio_private.h
new file mode 100644
index 0000000..6ace218
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/gpio_private.h
@@ -0,0 +1,44 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __GPIO_PRIVATE_H_INCLUDED__
+#define __GPIO_PRIVATE_H_INCLUDED__
+
+#include "gpio_public.h"
+
+#include "device_access.h"
+
+#include "assert_support.h"
+
+STORAGE_CLASS_GPIO_C void gpio_reg_store(
+	const gpio_ID_t	ID,
+	const unsigned int		reg,
+	const hrt_data			value)
+{
+OP___assert(ID < N_GPIO_ID);
+OP___assert(GPIO_BASE[ID] != (hrt_address)-1);
+	ia_css_device_store_uint32(GPIO_BASE[ID] + reg*sizeof(hrt_data), value);
+return;
+}
+
+STORAGE_CLASS_GPIO_C hrt_data gpio_reg_load(
+	const gpio_ID_t	ID,
+	const unsigned int		reg)
+{
+OP___assert(ID < N_GPIO_ID);
+OP___assert(GPIO_BASE[ID] != (hrt_address)-1);
+return ia_css_device_load_uint32(GPIO_BASE[ID] + reg*sizeof(hrt_data));
+}
+
+#endif /* __GPIO_PRIVATE_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/hive_isp_css_ddr_hrt_modified.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/hive_isp_css_ddr_hrt_modified.h
new file mode 100644
index 0000000..39785aa
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/hive_isp_css_ddr_hrt_modified.h
@@ -0,0 +1,148 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef _hive_isp_css_ddr_hrt_modified_h_
+#define _hive_isp_css_ddr_hrt_modified_h_
+
+#include <hmm_64/hmm.h>
+
+/* This function reads an image from DDR and stores it in the img_buf array
+   that has been allocated by the caller.
+   The specifics of how the pixels are stored into DDR by the DMA are taken
+   into account (bits padded to a width of 256, depending on the number of
+   elements per ddr word).
+   The DMA specific parameters give to this function (elems_per_xword and sign_extend)
+   should correspond to those given to the DMA engine.
+   The address is a virtual address which will be translated to a physical address before
+   data is loaded from or stored to that address.
+
+   The return value is 0 in case of success and 1 in case of failure.
+ */
+unsigned int
+hrt_isp_css_read_image_from_ddr(
+    unsigned short *img_buf,
+    unsigned int width,
+    unsigned int height,
+    unsigned int elems_per_xword,
+    unsigned int sign_extend,
+    hmm_ptr virt_addr);
+
+/* This function writes an image to DDR, keeping the same aspects into account as the read_image function
+   above. */
+unsigned int
+hrt_isp_css_write_image_to_ddr(
+    const unsigned short *img_buf,
+    unsigned int width,
+    unsigned int height,
+    unsigned int elems_per_xword,
+    unsigned int sign_extend,
+    hmm_ptr virt_addr);
+
+/* return the size in bytes of an image (frame or plane). */
+unsigned int
+hrt_isp_css_sizeof_image_in_ddr(
+    unsigned int width,
+    unsigned int height,
+    unsigned int bits_per_element);
+
+unsigned int
+hrt_isp_css_stride_of_image_in_ddr(
+    unsigned int width,
+    unsigned int bits_per_element);
+
+hmm_ptr
+hrt_isp_css_alloc_image_in_ddr(
+    unsigned int width,
+    unsigned int height,
+    unsigned int elems_per_xword);
+
+hmm_ptr
+hrt_isp_css_calloc_image_in_ddr(
+    unsigned int width,
+    unsigned int height,
+    unsigned int elems_per_xword);
+
+#ifndef HIVE_ISP_NO_GDC
+#include "gdc_v2_defs.h"
+
+hmm_ptr
+hrt_isp_css_alloc_gdc_lut_in_ddr(void);
+
+void
+hrt_isp_css_write_gdc_lut_to_ddr(
+    short values[4][HRT_GDC_N],
+    hmm_ptr virt_addr);
+#endif
+
+#ifdef _HIVE_ISP_CSS_FPGA_SYSTEM
+hmm_ptr
+hrt_isp_css_alloc_image_for_display(
+    unsigned int width,
+    unsigned int height,
+    unsigned int elems_per_xword);
+
+hmm_ptr
+hrt_isp_css_calloc_image_for_display(
+    unsigned int width,
+    unsigned int height,
+    unsigned int elems_per_xword);
+#endif
+
+/* New set of functions, these do not require the elems_per_xword, but use bits_per_element instead,
+   this way the user does not need to know about the width of a DDR word. */
+unsigned int
+hrt_isp_css_read_unsigned(
+    unsigned short *target,
+    unsigned int width,
+    unsigned int height,
+    unsigned int source_bits_per_element,
+    hmm_ptr source);
+
+unsigned int
+hrt_isp_css_read_signed(
+    short *target,
+    unsigned int width,
+    unsigned int height,
+    unsigned int source_bits_per_element,
+    hmm_ptr source);
+
+unsigned int 
+hrt_isp_css_write_unsigned(
+    const unsigned short *source,
+    unsigned int width,
+    unsigned int height,
+    unsigned int target_bits_per_element,
+    hmm_ptr target);
+
+unsigned int 
+hrt_isp_css_write_signed(
+    const short *source,
+    unsigned int width,
+    unsigned int height,
+    unsigned int target_bits_per_element,
+    hmm_ptr target);
+
+hmm_ptr
+hrt_isp_css_alloc(
+    unsigned int width,
+    unsigned int height,
+    unsigned int bits_per_element);
+
+hmm_ptr
+hrt_isp_css_calloc(
+    unsigned int width,
+    unsigned int height,
+    unsigned int bits_per_element);
+
+#endif /* _hive_isp_css_ddr_hrt_modified_h_ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/hive_isp_css_hrt_modified.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/hive_isp_css_hrt_modified.h
new file mode 100644
index 0000000..603ef1d
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/hive_isp_css_hrt_modified.h
@@ -0,0 +1,95 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef _hive_isp_css_hrt_h
+#define _hive_isp_css_hrt_h
+
+#include "system_types.h"
+
+#include "hive_isp_css_host_ids_hrt.h"
+#include "hive_isp_css_defs.h"
+
+#ifdef HRT_ISP_CSS_CUSTOM_HOST
+#ifndef HRT_USE_VIR_ADDRS
+#define HRT_USE_VIR_ADDRS
+#endif
+/*#include "hive_isp_css_custom_host_hrt.h"*/
+#endif
+
+#include <gpio_block.h>
+#include <gp_regs.h>
+#include <gp_timer_hrt.h>
+#ifdef _HIVE_ISP_CSS_FPGA_SYSTEM
+  #include <i2c_api.h>
+  #include <dis_sensor.h>
+  #include <display_driver.h>
+  #include <display.h>
+  #include <display_driver.h>
+  #include <shi_sensor_api.h>
+#define hrt_gdc_slave_port(gdc_id)    HRTCAT(gdc_id,_sl_in)
+  #include <isp2400_mamoiada_demo_params.h>
+  #include <isp2400_support.h>
+  #include "isp_css_dev_flash_hrt.h"
+  #include "isp_css_dev_display_hrt.h"
+  #include "isp_css_dev_i2c_hrt.h"
+  #include "isp_css_dev_tb.h"
+#else /* CSS ASIC system */
+  #include <css_receiver_2400_hrt.h>
+//  #include <isp2400_mamoiada_params.h>
+//  #include <isp2400_support.h>
+  /* insert idle signal clearing and setting around hrt_main */
+  #if !defined(HRT_HW) || defined(HRT_ISP_CSS_INSERT_IDLE_SIGNAL)
+    #define hrt_main _hrt_isp_css_main
+  #endif
+  #ifdef _HIVE_ISP_CSS_SPECMAN_SYSTEM
+    #include "hive_isp_css_2400_specman_system.h"
+  #else
+#if defined(IS_ISP_2400_MAMOIADA_SYSTEM)
+    #include "hive_isp_css_2400_system.h"
+#elif defined(IS_ISP_2401_MAMOIADA_SYSTEM)
+    #include "hive_isp_css_2401_system.h"
+#else
+#error "hive_isp_css_hrt_modified.h: SYSTEM must be one of {2400_MAMOIADA_SYSTEM, 2401_MAMOIADA_SYSTEM}"
+#endif
+  #endif
+#endif /* _HIVE_ISP_CSS_FPGA_SYSTEM */
+#include <sp_hrt.h>
+#include <input_system_hrt.h>
+#include <input_selector_hrt.h>
+#include <sig_monitor_hrt.h>
+
+#include "hive_isp_css_sdram_wakeup_hrt.h"
+#include "hive_isp_css_idle_signal_hrt.h"
+#include "hive_isp_css_sp_hrt.h"
+#include "hive_isp_css_isp_hrt.h"
+#include "hive_isp_css_streaming_to_mipi_hrt.h"
+#include "hive_isp_css_testbench_hrt.h"
+#include "hive_isp_css_streaming_monitors_hrt.h"
+#include "hive_isp_css_gp_regs_hrt.h"
+#if defined(IS_ISP_2400_MAMOIADA_SYSTEM)
+#include "hive_isp_css_irq_hrt.h"
+#elif defined(IS_ISP_2401_MAMOIADA_SYSTEM)
+#include "hive_isp_css_2401_irq_hrt.h"
+#else
+#error "hive_isp_css_hrt_modified.h: SYSTEM must be one of {2400_MAMOIADA_SYSTEM, 2401_MAMOIADA_SYSTEM}"
+#endif
+
+#include "hive_isp_css_stream_switch_hrt.h"
+
+#include "hive_isp_css_ddr_hrt_modified.h"
+#include "hive_isp_css_dma_set_hrt.h"
+
+#define HIVE_ISP_CSS_NO_STREAM_SWITCH 1
+
+#endif /* _hive_isp_css_hrt_h */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/hmem.c b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/hmem.c
new file mode 100644
index 0000000..e48f180
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/hmem.c
@@ -0,0 +1,19 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#include "hmem.h"
+
+#ifndef __INLINE_HMEM__
+#include "hmem_private.h"
+#endif /* __INLINE_HMEM__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/hmem_local.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/hmem_local.h
new file mode 100644
index 0000000..499f55f
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/hmem_local.h
@@ -0,0 +1,20 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __HMEM_LOCAL_H_INCLUDED__
+#define __HMEM_LOCAL_H_INCLUDED__
+
+#include "hmem_global.h"
+
+#endif /* __HMEM_LOCAL_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/hmem_private.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/hmem_private.h
new file mode 100644
index 0000000..2b636e0
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/hmem_private.h
@@ -0,0 +1,30 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __HMEM_PRIVATE_H_INCLUDED__
+#define __HMEM_PRIVATE_H_INCLUDED__
+
+#include "hmem_public.h"
+
+#include "assert_support.h"
+
+STORAGE_CLASS_HMEM_C size_t sizeof_hmem(
+	const hmem_ID_t		ID)
+{
+assert(ID < N_HMEM_ID);
+	(void)ID;
+return HMEM_SIZE*sizeof(hmem_data_t);
+}
+
+#endif /* __HMEM_PRIVATE_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/input_formatter.c b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/input_formatter.c
new file mode 100644
index 0000000..b92e3ad
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/input_formatter.c
@@ -0,0 +1,234 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#include "system_global.h"
+
+#ifdef USE_INPUT_SYSTEM_VERSION_2
+
+#include "input_formatter.h"
+#include <type_support.h>
+#include "gp_device.h"
+
+#include "assert_support.h"
+
+#ifndef __INLINE_INPUT_FORMATTER__
+#include "input_formatter_private.h"
+#endif /* __INLINE_INPUT_FORMATTER__ */
+
+const hrt_address HIVE_IF_SRST_ADDRESS[N_INPUT_FORMATTER_ID] = {
+	INPUT_FORMATTER0_SRST_OFFSET,
+	INPUT_FORMATTER1_SRST_OFFSET,
+	INPUT_FORMATTER2_SRST_OFFSET,
+	INPUT_FORMATTER3_SRST_OFFSET};
+
+const hrt_data HIVE_IF_SRST_MASK[N_INPUT_FORMATTER_ID] = {
+	INPUT_FORMATTER0_SRST_MASK,
+	INPUT_FORMATTER1_SRST_MASK,
+	INPUT_FORMATTER2_SRST_MASK,
+	INPUT_FORMATTER3_SRST_MASK};
+
+const uint8_t HIVE_IF_SWITCH_CODE[N_INPUT_FORMATTER_ID] = {
+	HIVE_INPUT_SWITCH_SELECT_IF_PRIM,
+	HIVE_INPUT_SWITCH_SELECT_IF_PRIM,
+	HIVE_INPUT_SWITCH_SELECT_IF_SEC,
+	HIVE_INPUT_SWITCH_SELECT_STR_TO_MEM};
+
+/* MW Should be part of system_global.h, where we have the main enumeration */
+const bool HIVE_IF_BIN_COPY[N_INPUT_FORMATTER_ID] = {
+	false, false, false, true};
+
+void input_formatter_rst(
+	const input_formatter_ID_t		ID)
+{
+	hrt_address	addr;
+	hrt_data	rst;
+
+	assert(ID < N_INPUT_FORMATTER_ID);
+
+	addr = HIVE_IF_SRST_ADDRESS[ID];
+	rst = HIVE_IF_SRST_MASK[ID];
+
+	/* TEMPORARY HACK: THIS RESET BREAKS THE METADATA FEATURE
+	 * WICH USES THE STREAM2MEMRY BLOCK.
+	 * MUST BE FIXED PROPERLY
+	 */
+	if (!HIVE_IF_BIN_COPY[ID]) {
+		input_formatter_reg_store(ID, addr, rst);
+	}
+
+	return;
+}
+
+unsigned int input_formatter_get_alignment(
+	const input_formatter_ID_t		ID)
+{
+	assert(ID < N_INPUT_FORMATTER_ID);
+
+	return input_formatter_alignment[ID];
+}
+
+void input_formatter_set_fifo_blocking_mode(
+	const input_formatter_ID_t		ID,
+	const bool						enable)
+{
+	assert(ID < N_INPUT_FORMATTER_ID);
+
+	/* cnd_input_formatter_reg_store() */
+	if (!HIVE_IF_BIN_COPY[ID]) {
+		input_formatter_reg_store(ID,
+			 HIVE_IF_BLOCK_FIFO_NO_REQ_ADDRESS, enable);
+	}
+	return;
+}
+
+void input_formatter_get_switch_state(
+	const input_formatter_ID_t		ID,
+	input_formatter_switch_state_t	*state)
+{
+	assert(ID < N_INPUT_FORMATTER_ID);
+	assert(state != NULL);
+
+	/* We'll change this into an intelligent function to get switch info per IF */
+	(void)ID;
+
+	state->if_input_switch_lut_reg[0] = gp_device_reg_load(GP_DEVICE0_ID, _REG_GP_IFMT_input_switch_lut_reg0);
+	state->if_input_switch_lut_reg[1] = gp_device_reg_load(GP_DEVICE0_ID, _REG_GP_IFMT_input_switch_lut_reg1);
+	state->if_input_switch_lut_reg[2] = gp_device_reg_load(GP_DEVICE0_ID, _REG_GP_IFMT_input_switch_lut_reg2);
+	state->if_input_switch_lut_reg[3] = gp_device_reg_load(GP_DEVICE0_ID, _REG_GP_IFMT_input_switch_lut_reg3);
+	state->if_input_switch_lut_reg[4] = gp_device_reg_load(GP_DEVICE0_ID, _REG_GP_IFMT_input_switch_lut_reg4);
+	state->if_input_switch_lut_reg[5] = gp_device_reg_load(GP_DEVICE0_ID, _REG_GP_IFMT_input_switch_lut_reg5);
+	state->if_input_switch_lut_reg[6] = gp_device_reg_load(GP_DEVICE0_ID, _REG_GP_IFMT_input_switch_lut_reg6);
+	state->if_input_switch_lut_reg[7] = gp_device_reg_load(GP_DEVICE0_ID, _REG_GP_IFMT_input_switch_lut_reg7);
+	state->if_input_switch_fsync_lut = gp_device_reg_load(GP_DEVICE0_ID, _REG_GP_IFMT_input_switch_fsync_lut);
+	state->if_input_switch_ch_id_fmt_type = gp_device_reg_load(GP_DEVICE0_ID, _REG_GP_IFMT_input_switch_ch_id_fmt_type);
+
+	return;
+}
+
+void input_formatter_get_state(
+	const input_formatter_ID_t		ID,
+	input_formatter_state_t			*state)
+{
+	assert(ID < N_INPUT_FORMATTER_ID);
+	assert(state != NULL);
+/*
+	state->reset = input_formatter_reg_load(ID,
+		HIVE_IF_RESET_ADDRESS);
+ */
+	state->start_line = input_formatter_reg_load(ID,
+		HIVE_IF_START_LINE_ADDRESS);
+	state->start_column = input_formatter_reg_load(ID,
+		HIVE_IF_START_COLUMN_ADDRESS);
+	state->cropped_height = input_formatter_reg_load(ID,
+		HIVE_IF_CROPPED_HEIGHT_ADDRESS);
+	state->cropped_width = input_formatter_reg_load(ID,
+		HIVE_IF_CROPPED_WIDTH_ADDRESS);
+	state->ver_decimation = input_formatter_reg_load(ID,
+		HIVE_IF_VERTICAL_DECIMATION_ADDRESS);
+	state->hor_decimation = input_formatter_reg_load(ID,
+		HIVE_IF_HORIZONTAL_DECIMATION_ADDRESS);
+	state->hor_deinterleaving = input_formatter_reg_load(ID,
+		HIVE_IF_H_DEINTERLEAVING_ADDRESS);
+	state->left_padding = input_formatter_reg_load(ID,
+		HIVE_IF_LEFTPADDING_WIDTH_ADDRESS);
+	state->eol_offset = input_formatter_reg_load(ID,
+		HIVE_IF_END_OF_LINE_OFFSET_ADDRESS);
+	state->vmem_start_address = input_formatter_reg_load(ID,
+		HIVE_IF_VMEM_START_ADDRESS_ADDRESS);
+	state->vmem_end_address = input_formatter_reg_load(ID,
+		HIVE_IF_VMEM_END_ADDRESS_ADDRESS);
+	state->vmem_increment = input_formatter_reg_load(ID,
+		HIVE_IF_VMEM_INCREMENT_ADDRESS);
+	state->is_yuv420 = input_formatter_reg_load(ID,
+		HIVE_IF_YUV_420_FORMAT_ADDRESS);
+	state->vsync_active_low = input_formatter_reg_load(ID,
+		HIVE_IF_VSYNCK_ACTIVE_LOW_ADDRESS);
+	state->hsync_active_low = input_formatter_reg_load(ID,
+		HIVE_IF_HSYNCK_ACTIVE_LOW_ADDRESS);
+	state->allow_fifo_overflow = input_formatter_reg_load(ID,
+		HIVE_IF_ALLOW_FIFO_OVERFLOW_ADDRESS);
+	state->block_fifo_when_no_req = input_formatter_reg_load(ID,
+		HIVE_IF_BLOCK_FIFO_NO_REQ_ADDRESS);
+	state->ver_deinterleaving = input_formatter_reg_load(ID,
+		HIVE_IF_V_DEINTERLEAVING_ADDRESS);
+/* FSM */
+	state->fsm_sync_status = input_formatter_reg_load(ID,
+		HIVE_IF_FSM_SYNC_STATUS);
+	state->fsm_sync_counter = input_formatter_reg_load(ID,
+		HIVE_IF_FSM_SYNC_COUNTER);
+	state->fsm_crop_status = input_formatter_reg_load(ID,
+		HIVE_IF_FSM_CROP_STATUS);
+	state->fsm_crop_line_counter = input_formatter_reg_load(ID,
+		HIVE_IF_FSM_CROP_LINE_COUNTER);
+	state->fsm_crop_pixel_counter = input_formatter_reg_load(ID,
+		HIVE_IF_FSM_CROP_PIXEL_COUNTER);
+	state->fsm_deinterleaving_index = input_formatter_reg_load(ID,
+		HIVE_IF_FSM_DEINTERLEAVING_IDX);
+	state->fsm_dec_h_counter = input_formatter_reg_load(ID,
+		HIVE_IF_FSM_DECIMATION_H_COUNTER);
+	state->fsm_dec_v_counter = input_formatter_reg_load(ID,
+		HIVE_IF_FSM_DECIMATION_V_COUNTER);
+	state->fsm_dec_block_v_counter = input_formatter_reg_load(ID,
+		HIVE_IF_FSM_DECIMATION_BLOCK_V_COUNTER);
+	state->fsm_padding_status = input_formatter_reg_load(ID,
+		HIVE_IF_FSM_PADDING_STATUS);
+	state->fsm_padding_elem_counter = input_formatter_reg_load(ID,
+		HIVE_IF_FSM_PADDING_ELEMENT_COUNTER);
+	state->fsm_vector_support_error = input_formatter_reg_load(ID,
+		HIVE_IF_FSM_VECTOR_SUPPORT_ERROR);
+	state->fsm_vector_buffer_full = input_formatter_reg_load(ID,
+		HIVE_IF_FSM_VECTOR_SUPPORT_BUFF_FULL);
+	state->vector_support = input_formatter_reg_load(ID,
+		HIVE_IF_FSM_VECTOR_SUPPORT);
+	state->sensor_data_lost = input_formatter_reg_load(ID,
+		HIVE_IF_FIFO_SENSOR_STATUS);
+
+	return;
+}
+
+void input_formatter_bin_get_state(
+	const input_formatter_ID_t		ID,
+	input_formatter_bin_state_t		*state)
+{
+	assert(ID < N_INPUT_FORMATTER_ID);
+	assert(state != NULL);
+
+#ifdef HRT_CSIM
+	/* The compiled simulator mode of the input formatter
+	 * does not support reading from the write-only reset
+	 * register. */
+	state->reset = 0;
+#else
+	state->reset = input_formatter_reg_load(ID,
+		HIVE_STR2MEM_SOFT_RESET_REG_ADDRESS);
+#endif
+	state->input_endianness = input_formatter_reg_load(ID,
+		HIVE_STR2MEM_INPUT_ENDIANNESS_REG_ADDRESS);
+	state->output_endianness = input_formatter_reg_load(ID,
+		HIVE_STR2MEM_OUTPUT_ENDIANNESS_REG_ADDRESS);
+	state->bitswap = input_formatter_reg_load(ID,
+		HIVE_STR2MEM_BIT_SWAPPING_REG_ADDRESS);
+	state->block_synch = input_formatter_reg_load(ID,
+		HIVE_STR2MEM_BLOCK_SYNC_LEVEL_REG_ADDRESS);
+	state->packet_synch = input_formatter_reg_load(ID,
+		HIVE_STR2MEM_PACKET_SYNC_LEVEL_REG_ADDRESS);
+	state->readpostwrite_synch = input_formatter_reg_load(ID,
+		HIVE_STR2MEM_READ_POST_WRITE_SYNC_ENABLE_REG_ADDRESS);
+	state->is_2ppc = input_formatter_reg_load(ID,
+		HIVE_STR2MEM_DUAL_BYTE_INPUTS_ENABLED_REG_ADDRESS);
+	state->en_status_update = input_formatter_reg_load(ID,
+		HIVE_STR2MEM_EN_STAT_UPDATE_ADDRESS);
+	return;
+}
+#endif
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/input_formatter_local.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/input_formatter_local.h
new file mode 100644
index 0000000..3e00b5e
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/input_formatter_local.h
@@ -0,0 +1,120 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __INPUT_FORMATTER_LOCAL_H_INCLUDED__
+#define __INPUT_FORMATTER_LOCAL_H_INCLUDED__
+
+#include "input_formatter_global.h"
+
+#include "isp.h"		/* ISP_VEC_ALIGN */
+
+typedef struct input_formatter_switch_state_s	input_formatter_switch_state_t;
+typedef struct input_formatter_state_s			input_formatter_state_t;
+typedef struct input_formatter_bin_state_s		input_formatter_bin_state_t;
+
+#define HIVE_IF_FSM_SYNC_STATUS                 0x100
+#define HIVE_IF_FSM_SYNC_COUNTER                0x104
+#define HIVE_IF_FSM_DEINTERLEAVING_IDX          0x114
+#define HIVE_IF_FSM_DECIMATION_H_COUNTER        0x118
+#define HIVE_IF_FSM_DECIMATION_V_COUNTER        0x11C
+#define HIVE_IF_FSM_DECIMATION_BLOCK_V_COUNTER  0x120
+#define HIVE_IF_FSM_PADDING_STATUS              0x124
+#define HIVE_IF_FSM_PADDING_ELEMENT_COUNTER     0x128
+#define HIVE_IF_FSM_VECTOR_SUPPORT_ERROR        0x12C
+#define HIVE_IF_FSM_VECTOR_SUPPORT_BUFF_FULL    0x130
+#define HIVE_IF_FSM_VECTOR_SUPPORT              0x134
+#define HIVE_IF_FIFO_SENSOR_STATUS              0x138
+
+/*
+ * The switch LUT's coding defines a sink for each
+ * single channel ID + channel format type. Conversely
+ * the sink (i.e. an input formatter) can be reached
+ * from multiple channel & format type combinations
+ *
+ * LUT[0,1] channel=0, format type {0,1,...31}
+ * LUT[2,3] channel=1, format type {0,1,...31}
+ * LUT[4,5] channel=2, format type {0,1,...31}
+ * LUT[6,7] channel=3, format type {0,1,...31}
+ *
+ * Each register hold 16 2-bit fields encoding the sink
+ * {0,1,2,3}, "0" means unconnected.
+ *
+ * The single FSYNCH register uses four 3-bit fields of 1-hot
+ * encoded sink information, "0" means unconnected.
+ *
+ * The encoding is redundant. The FSYNCH setting will connect
+ * a channel to a sink. At that point the LUT's belonging to
+ * that channel can be directed to another sink. Thus the data
+ * goes to another place than the synch
+ */
+struct input_formatter_switch_state_s {
+	int	if_input_switch_lut_reg[8];
+	int	if_input_switch_fsync_lut;
+	int	if_input_switch_ch_id_fmt_type;
+	bool if_input_switch_map[HIVE_SWITCH_N_CHANNELS][HIVE_SWITCH_N_FORMATTYPES];
+};
+
+struct input_formatter_state_s {
+/*	int	reset; */
+	int	start_line;
+	int	start_column;
+	int	cropped_height;
+	int	cropped_width;
+	int	ver_decimation;
+	int	hor_decimation;
+	int	ver_deinterleaving;
+	int	hor_deinterleaving;
+	int	left_padding;
+	int	eol_offset;
+	int	vmem_start_address;
+	int	vmem_end_address;
+	int	vmem_increment;
+	int	is_yuv420;
+	int	vsync_active_low;
+	int	hsync_active_low;
+	int	allow_fifo_overflow;
+	int block_fifo_when_no_req;
+	int	fsm_sync_status;
+	int	fsm_sync_counter;
+	int	fsm_crop_status;
+	int	fsm_crop_line_counter;
+	int	fsm_crop_pixel_counter;
+	int	fsm_deinterleaving_index;
+	int	fsm_dec_h_counter;
+	int	fsm_dec_v_counter;
+	int	fsm_dec_block_v_counter;
+	int	fsm_padding_status;
+	int	fsm_padding_elem_counter;
+	int	fsm_vector_support_error;
+	int	fsm_vector_buffer_full;
+	int	vector_support;
+	int	sensor_data_lost;
+};
+
+struct input_formatter_bin_state_s {
+	uint32_t	reset;
+	uint32_t	input_endianness;
+	uint32_t	output_endianness;
+	uint32_t	bitswap;
+	uint32_t	block_synch;
+	uint32_t	packet_synch;
+	uint32_t	readpostwrite_synch;
+	uint32_t	is_2ppc;
+	uint32_t	en_status_update;
+};
+
+static const unsigned int input_formatter_alignment[N_INPUT_FORMATTER_ID] = {
+	ISP_VEC_ALIGN, ISP_VEC_ALIGN, HIVE_ISP_CTRL_DATA_BYTES};
+
+#endif /* __INPUT_FORMATTER_LOCAL_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/input_formatter_private.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/input_formatter_private.h
new file mode 100644
index 0000000..d34933e
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/input_formatter_private.h
@@ -0,0 +1,46 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __INPUT_FORMATTER_PRIVATE_H_INCLUDED__
+#define __INPUT_FORMATTER_PRIVATE_H_INCLUDED__
+
+#include "input_formatter_public.h"
+
+#include "device_access.h"
+
+#include "assert_support.h"
+
+STORAGE_CLASS_INPUT_FORMATTER_C void input_formatter_reg_store(
+	const input_formatter_ID_t		ID,
+	const hrt_address			reg_addr,
+	const hrt_data				value)
+{
+assert(ID < N_INPUT_FORMATTER_ID);
+assert(INPUT_FORMATTER_BASE[ID] != (hrt_address)-1);
+assert((reg_addr % sizeof(hrt_data)) == 0);
+	ia_css_device_store_uint32(INPUT_FORMATTER_BASE[ID] + reg_addr, value);
+return;
+}
+
+STORAGE_CLASS_INPUT_FORMATTER_C hrt_data input_formatter_reg_load(
+	const input_formatter_ID_t	ID,
+	const unsigned int			reg_addr)
+{
+assert(ID < N_INPUT_FORMATTER_ID);
+assert(INPUT_FORMATTER_BASE[ID] != (hrt_address)-1);
+assert((reg_addr % sizeof(hrt_data)) == 0);
+return ia_css_device_load_uint32(INPUT_FORMATTER_BASE[ID] + reg_addr);
+}
+
+#endif /* __INPUT_FORMATTER_PRIVATE_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/input_system.c b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/input_system.c
new file mode 100644
index 0000000..f35e189
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/input_system.c
@@ -0,0 +1,1823 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#include "system_global.h"
+
+#ifdef USE_INPUT_SYSTEM_VERSION_2
+
+#include "input_system.h"
+#include <type_support.h>
+#include "gp_device.h"
+
+#include "assert_support.h"
+
+#ifndef __INLINE_INPUT_SYSTEM__
+#include "input_system_private.h"
+#endif /* __INLINE_INPUT_SYSTEM__ */
+
+#define ZERO (0x0)
+#define ONE  (1U)
+
+const ib_buffer_t   IB_BUFFER_NULL = {0 ,0, 0 };
+
+static input_system_error_t input_system_configure_channel(
+	const channel_cfg_t		channel);
+
+static input_system_error_t input_system_configure_channel_sensor(
+	const channel_cfg_t		channel);
+
+static input_system_error_t input_buffer_configuration(void);
+
+static input_system_error_t configuration_to_registers(void);
+
+static void receiver_rst(const rx_ID_t ID);
+static void input_system_network_rst(const input_system_ID_t ID);
+
+static void capture_unit_configure(
+	const input_system_ID_t			ID,
+	const sub_system_ID_t			sub_id,
+	const ib_buffer_t* const		cfg);
+
+static void acquisition_unit_configure(
+	const input_system_ID_t			ID,
+	const sub_system_ID_t			sub_id,
+	const ib_buffer_t* const		cfg);
+
+static void ctrl_unit_configure(
+	const input_system_ID_t			ID,
+	const sub_system_ID_t			sub_id,
+	const ctrl_unit_cfg_t* const	cfg);
+
+static void input_system_network_configure(
+	const input_system_ID_t			ID,
+	const input_system_network_cfg_t * const	cfg);
+
+// MW: CSI is previously named as "rx" short for "receiver"
+static input_system_error_t set_csi_cfg(
+	csi_cfg_t* const						lhs,
+	const csi_cfg_t* const					rhs,
+	input_system_config_flags_t* const 		flags);
+
+static input_system_error_t set_source_type(
+	input_system_source_t* const 			lhs,
+	const input_system_source_t	 			rhs,
+	input_system_config_flags_t* const		flags);
+
+static input_system_error_t input_system_multiplexer_cfg(
+	input_system_multiplex_t* const			lhs,
+	const input_system_multiplex_t			rhs,
+	input_system_config_flags_t* const		flags);
+
+
+
+STORAGE_CLASS_INLINE void capture_unit_get_state(
+	const input_system_ID_t			ID,
+	const sub_system_ID_t			sub_id,
+	capture_unit_state_t			*state);
+
+STORAGE_CLASS_INLINE void acquisition_unit_get_state(
+	const input_system_ID_t			ID,
+	const sub_system_ID_t			sub_id,
+	acquisition_unit_state_t		*state);
+
+STORAGE_CLASS_INLINE void ctrl_unit_get_state(
+	const input_system_ID_t			ID,
+	const sub_system_ID_t			sub_id,
+	ctrl_unit_state_t				*state);
+
+STORAGE_CLASS_INLINE void mipi_port_get_state(
+	const rx_ID_t					ID,
+	const mipi_port_ID_t			port_ID,
+	mipi_port_state_t				*state);
+
+STORAGE_CLASS_INLINE void rx_channel_get_state(
+	const rx_ID_t					ID,
+	const unsigned int				ch_id,
+	rx_channel_state_t				*state);
+
+static void gp_device_rst(const gp_device_ID_t		ID);
+
+static void input_selector_cfg_for_sensor(const gp_device_ID_t	ID);
+
+static void input_switch_rst(const gp_device_ID_t	ID);
+
+static void input_switch_cfg(
+	const gp_device_ID_t				ID,
+	const input_switch_cfg_t * const	cfg
+);
+
+void input_system_get_state(
+	const input_system_ID_t			ID,
+	input_system_state_t			*state)
+{
+	sub_system_ID_t	sub_id;
+
+	assert(ID < N_INPUT_SYSTEM_ID);
+	assert(state != NULL);
+
+	state->str_multicastA_sel = input_system_sub_system_reg_load(ID,
+		GPREGS_UNIT0_ID,
+		HIVE_ISYS_GPREG_MULTICAST_A_IDX);
+	state->str_multicastB_sel = input_system_sub_system_reg_load(ID,
+		GPREGS_UNIT0_ID,
+		HIVE_ISYS_GPREG_MULTICAST_B_IDX);
+	state->str_multicastC_sel = input_system_sub_system_reg_load(ID,
+		GPREGS_UNIT0_ID,
+		HIVE_ISYS_GPREG_MULTICAST_C_IDX);
+	state->str_mux_sel = input_system_sub_system_reg_load(ID,
+		GPREGS_UNIT0_ID,
+		HIVE_ISYS_GPREG_MUX_IDX);
+	state->str_mon_status = input_system_sub_system_reg_load(ID,
+		GPREGS_UNIT0_ID,
+		HIVE_ISYS_GPREG_STRMON_STAT_IDX);
+	state->str_mon_irq_cond = input_system_sub_system_reg_load(ID,
+		GPREGS_UNIT0_ID,
+		HIVE_ISYS_GPREG_STRMON_COND_IDX);
+	state->str_mon_irq_en = input_system_sub_system_reg_load(ID,
+		GPREGS_UNIT0_ID,
+		HIVE_ISYS_GPREG_STRMON_IRQ_EN_IDX);
+	state->isys_srst = input_system_sub_system_reg_load(ID,
+		GPREGS_UNIT0_ID,
+		HIVE_ISYS_GPREG_SRST_IDX);
+	state->isys_slv_reg_srst = input_system_sub_system_reg_load(ID,
+		GPREGS_UNIT0_ID,
+		HIVE_ISYS_GPREG_SLV_REG_SRST_IDX);
+	state->str_deint_portA_cnt = input_system_sub_system_reg_load(ID,
+		GPREGS_UNIT0_ID,
+		HIVE_ISYS_GPREG_REG_PORT_A_IDX);
+	state->str_deint_portB_cnt = input_system_sub_system_reg_load(ID,
+		GPREGS_UNIT0_ID,
+		HIVE_ISYS_GPREG_REG_PORT_B_IDX);
+
+	for (sub_id = CAPTURE_UNIT0_ID; sub_id < CAPTURE_UNIT0_ID + N_CAPTURE_UNIT_ID; sub_id++) {
+		capture_unit_get_state(ID, sub_id,
+			&(state->capture_unit[sub_id - CAPTURE_UNIT0_ID]));
+	}
+	for (sub_id = ACQUISITION_UNIT0_ID; sub_id < ACQUISITION_UNIT0_ID + N_ACQUISITION_UNIT_ID; sub_id++) {
+		acquisition_unit_get_state(ID, sub_id,
+			&(state->acquisition_unit[sub_id - ACQUISITION_UNIT0_ID]));
+	}
+	for (sub_id = CTRL_UNIT0_ID; sub_id < CTRL_UNIT0_ID + N_CTRL_UNIT_ID; sub_id++) {
+		ctrl_unit_get_state(ID, sub_id,
+			&(state->ctrl_unit_state[sub_id - CTRL_UNIT0_ID]));
+	}
+
+return;
+}
+
+void receiver_get_state(
+	const rx_ID_t				ID,
+	receiver_state_t			*state)
+{
+	mipi_port_ID_t	port_id;
+	unsigned int	ch_id;
+
+	assert(ID < N_RX_ID);
+	assert(state != NULL);
+
+	state->fs_to_ls_delay = (uint8_t)receiver_reg_load(ID,
+		_HRT_CSS_RECEIVER_FS_TO_LS_DELAY_REG_IDX);
+	state->ls_to_data_delay = (uint8_t)receiver_reg_load(ID,
+		_HRT_CSS_RECEIVER_LS_TO_DATA_DELAY_REG_IDX);
+	state->data_to_le_delay = (uint8_t)receiver_reg_load(ID,
+		_HRT_CSS_RECEIVER_DATA_TO_LE_DELAY_REG_IDX);
+	state->le_to_fe_delay = (uint8_t)receiver_reg_load(ID,
+		_HRT_CSS_RECEIVER_LE_TO_FE_DELAY_REG_IDX);
+	state->fe_to_fs_delay = (uint8_t)receiver_reg_load(ID,
+		_HRT_CSS_RECEIVER_FE_TO_FS_DELAY_REG_IDX);
+	state->le_to_fs_delay = (uint8_t)receiver_reg_load(ID,
+		_HRT_CSS_RECEIVER_LE_TO_LS_DELAY_REG_IDX);
+	state->is_two_ppc = (bool)receiver_reg_load(ID,
+		_HRT_CSS_RECEIVER_TWO_PIXEL_EN_REG_IDX);
+	state->backend_rst = receiver_reg_load(ID,
+		_HRT_CSS_RECEIVER_BACKEND_RST_REG_IDX);
+	state->raw18 = (uint16_t)receiver_reg_load(ID,
+		_HRT_CSS_RECEIVER_RAW18_REG_IDX);
+	state->force_raw8 = (bool)receiver_reg_load(ID,
+		_HRT_CSS_RECEIVER_FORCE_RAW8_REG_IDX);
+	state->raw16 = (uint16_t)receiver_reg_load(ID,
+		_HRT_CSS_RECEIVER_RAW16_REG_IDX);
+
+	for (port_id = (mipi_port_ID_t)0; port_id < N_MIPI_PORT_ID; port_id++) {
+		mipi_port_get_state(ID, port_id,
+			&(state->mipi_port_state[port_id]));
+	}
+	for (ch_id = (unsigned int)0; ch_id < N_RX_CHANNEL_ID; ch_id++) {
+		rx_channel_get_state(ID, ch_id,
+			&(state->rx_channel_state[ch_id]));
+	}
+
+	state->be_gsp_acc_ovl = receiver_reg_load(ID,
+		_HRT_CSS_RECEIVER_BE_GSP_ACC_OVL_REG_IDX);
+	state->be_srst = receiver_reg_load(ID,
+		_HRT_CSS_RECEIVER_BE_SRST_REG_IDX);
+	state->be_is_two_ppc = receiver_reg_load(ID,
+		_HRT_CSS_RECEIVER_BE_TWO_PPC_REG_IDX);
+	state->be_comp_format0 = receiver_reg_load(ID,
+		_HRT_CSS_RECEIVER_BE_COMP_FORMAT_REG0_IDX);
+	state->be_comp_format1 = receiver_reg_load(ID,
+		_HRT_CSS_RECEIVER_BE_COMP_FORMAT_REG1_IDX);
+	state->be_comp_format2 = receiver_reg_load(ID,
+		_HRT_CSS_RECEIVER_BE_COMP_FORMAT_REG2_IDX);
+	state->be_comp_format3 = receiver_reg_load(ID,
+		_HRT_CSS_RECEIVER_BE_COMP_FORMAT_REG3_IDX);
+	state->be_sel = receiver_reg_load(ID,
+		_HRT_CSS_RECEIVER_BE_SEL_REG_IDX);
+	state->be_raw16_config = receiver_reg_load(ID,
+		_HRT_CSS_RECEIVER_BE_RAW16_CONFIG_REG_IDX);
+	state->be_raw18_config = receiver_reg_load(ID,
+		_HRT_CSS_RECEIVER_BE_RAW18_CONFIG_REG_IDX);
+	state->be_force_raw8 = receiver_reg_load(ID,
+		_HRT_CSS_RECEIVER_BE_FORCE_RAW8_REG_IDX);
+	state->be_irq_status = receiver_reg_load(ID,
+		_HRT_CSS_RECEIVER_BE_IRQ_STATUS_REG_IDX);
+	state->be_irq_clear = receiver_reg_load(ID,
+		_HRT_CSS_RECEIVER_BE_IRQ_CLEAR_REG_IDX);
+
+return;
+}
+
+bool is_mipi_format_yuv420(
+	const mipi_format_t			mipi_format)
+{
+	bool	is_yuv420 = (
+		(mipi_format == MIPI_FORMAT_YUV420_8) ||
+		(mipi_format == MIPI_FORMAT_YUV420_10) ||
+		(mipi_format == MIPI_FORMAT_YUV420_8_SHIFT) ||
+		(mipi_format == MIPI_FORMAT_YUV420_10_SHIFT));
+/* MIPI_FORMAT_YUV420_8_LEGACY is not YUV420 */
+
+return is_yuv420;
+}
+
+void receiver_set_compression(
+	const rx_ID_t			ID,
+	const unsigned int		cfg_ID,
+	const mipi_compressor_t		comp,
+	const mipi_predictor_t		pred)
+{
+	const unsigned int		field_id = cfg_ID % N_MIPI_FORMAT_CUSTOM;
+	const unsigned int		ch_id = cfg_ID / N_MIPI_FORMAT_CUSTOM;
+	hrt_data			val;
+	hrt_address			addr = 0;
+	hrt_data			reg;
+
+	assert(ID < N_RX_ID);
+	assert(cfg_ID < N_MIPI_COMPRESSOR_CONTEXT);
+	assert(field_id < N_MIPI_FORMAT_CUSTOM);
+	assert(ch_id < N_RX_CHANNEL_ID);
+	assert(comp < N_MIPI_COMPRESSOR_METHODS);
+	assert(pred < N_MIPI_PREDICTOR_TYPES);
+
+	val = (((uint8_t)pred) << 3) | comp;
+
+	switch (ch_id) {
+	case 0: addr = ((field_id<6)?_HRT_CSS_RECEIVER_2400_COMP_SCHEME_VC0_REG0_IDX:_HRT_CSS_RECEIVER_2400_COMP_SCHEME_VC0_REG1_IDX);
+		break;
+	case 1: addr = ((field_id<6)?_HRT_CSS_RECEIVER_2400_COMP_SCHEME_VC1_REG0_IDX:_HRT_CSS_RECEIVER_2400_COMP_SCHEME_VC1_REG1_IDX);
+		break;
+	case 2: addr = ((field_id<6)?_HRT_CSS_RECEIVER_2400_COMP_SCHEME_VC2_REG0_IDX:_HRT_CSS_RECEIVER_2400_COMP_SCHEME_VC2_REG1_IDX);
+		break;
+	case 3: addr = ((field_id<6)?_HRT_CSS_RECEIVER_2400_COMP_SCHEME_VC3_REG0_IDX:_HRT_CSS_RECEIVER_2400_COMP_SCHEME_VC3_REG1_IDX);
+		break;
+	default:
+		/* should not happen */
+		assert(false);
+		return;
+	}
+
+	reg = ((field_id < 6)?(val << (field_id * 5)):(val << ((field_id - 6) * 5)));
+	receiver_reg_store(ID, addr, reg);
+
+return;
+}
+
+void receiver_port_enable(
+	const rx_ID_t			ID,
+	const mipi_port_ID_t		port_ID,
+	const bool			cnd)
+{
+	hrt_data	reg = receiver_port_reg_load(ID, port_ID,
+		_HRT_CSS_RECEIVER_DEVICE_READY_REG_IDX);
+
+	if (cnd) {
+		reg |= 0x01;
+	} else {
+		reg &= ~0x01;
+	}
+
+	receiver_port_reg_store(ID, port_ID,
+		_HRT_CSS_RECEIVER_DEVICE_READY_REG_IDX, reg);
+return;
+}
+
+bool is_receiver_port_enabled(
+	const rx_ID_t			ID,
+	const mipi_port_ID_t		port_ID)
+{
+	hrt_data	reg = receiver_port_reg_load(ID, port_ID,
+		_HRT_CSS_RECEIVER_DEVICE_READY_REG_IDX);
+return ((reg & 0x01) != 0);
+}
+
+void receiver_irq_enable(
+	const rx_ID_t			ID,
+	const mipi_port_ID_t		port_ID,
+	const rx_irq_info_t		irq_info)
+{
+	receiver_port_reg_store(ID,
+		port_ID, _HRT_CSS_RECEIVER_IRQ_ENABLE_REG_IDX, irq_info);
+return;
+}
+
+rx_irq_info_t receiver_get_irq_info(
+	const rx_ID_t			ID,
+	const mipi_port_ID_t		port_ID)
+{
+return receiver_port_reg_load(ID,
+	port_ID, _HRT_CSS_RECEIVER_IRQ_STATUS_REG_IDX);
+}
+
+void receiver_irq_clear(
+	const rx_ID_t			ID,
+	const mipi_port_ID_t		port_ID,
+	const rx_irq_info_t		irq_info)
+{
+	receiver_port_reg_store(ID,
+		port_ID, _HRT_CSS_RECEIVER_IRQ_STATUS_REG_IDX, irq_info);
+return;
+}
+
+STORAGE_CLASS_INLINE void capture_unit_get_state(
+	const input_system_ID_t			ID,
+	const sub_system_ID_t			sub_id,
+	capture_unit_state_t			*state)
+{
+	assert(/*(sub_id >= CAPTURE_UNIT0_ID) &&*/ (sub_id <= CAPTURE_UNIT2_ID));
+	assert(state != NULL);
+
+	state->StartMode = input_system_sub_system_reg_load(ID,
+		sub_id,
+		CAPT_START_MODE_REG_ID);
+	state->Start_Addr = input_system_sub_system_reg_load(ID,
+		sub_id,
+		CAPT_START_ADDR_REG_ID);
+	state->Mem_Region_Size = input_system_sub_system_reg_load(ID,
+		sub_id,
+		CAPT_MEM_REGION_SIZE_REG_ID);
+	state->Num_Mem_Regions = input_system_sub_system_reg_load(ID,
+		sub_id,
+		CAPT_NUM_MEM_REGIONS_REG_ID);
+//	AM: Illegal read from following registers.
+/*	state->Init = input_system_sub_system_reg_load(ID,
+		sub_id,
+		CAPT_INIT_REG_ID);
+	state->Start = input_system_sub_system_reg_load(ID,
+		sub_id,
+		CAPT_START_REG_ID);
+	state->Stop = input_system_sub_system_reg_load(ID,
+		sub_id,
+		CAPT_STOP_REG_ID);
+*/
+	state->Packet_Length = input_system_sub_system_reg_load(ID,
+		sub_id,
+		CAPT_PACKET_LENGTH_REG_ID);
+	state->Received_Length = input_system_sub_system_reg_load(ID,
+		sub_id,
+		CAPT_RECEIVED_LENGTH_REG_ID);
+	state->Received_Short_Packets = input_system_sub_system_reg_load(ID,
+		sub_id,
+		CAPT_RECEIVED_SHORT_PACKETS_REG_ID);
+	state->Received_Long_Packets = input_system_sub_system_reg_load(ID,
+		sub_id,
+		CAPT_RECEIVED_LONG_PACKETS_REG_ID);
+	state->Last_Command = input_system_sub_system_reg_load(ID,
+		sub_id,
+		CAPT_LAST_COMMAND_REG_ID);
+	state->Next_Command = input_system_sub_system_reg_load(ID,
+		sub_id,
+		CAPT_NEXT_COMMAND_REG_ID);
+	state->Last_Acknowledge = input_system_sub_system_reg_load(ID,
+		sub_id,
+		CAPT_LAST_ACKNOWLEDGE_REG_ID);
+	state->Next_Acknowledge = input_system_sub_system_reg_load(ID,
+		sub_id,
+		CAPT_NEXT_ACKNOWLEDGE_REG_ID);
+	state->FSM_State_Info = input_system_sub_system_reg_load(ID,
+		sub_id,
+		CAPT_FSM_STATE_INFO_REG_ID);
+
+return;
+}
+
+STORAGE_CLASS_INLINE void acquisition_unit_get_state(
+	const input_system_ID_t			ID,
+	const sub_system_ID_t			sub_id,
+	acquisition_unit_state_t		*state)
+{
+	assert(sub_id == ACQUISITION_UNIT0_ID);
+	assert(state != NULL);
+
+	state->Start_Addr = input_system_sub_system_reg_load(ID,
+		sub_id,
+		ACQ_START_ADDR_REG_ID);
+	state->Mem_Region_Size = input_system_sub_system_reg_load(ID,
+		sub_id,
+		ACQ_MEM_REGION_SIZE_REG_ID);
+	state->Num_Mem_Regions = input_system_sub_system_reg_load(ID,
+		sub_id,
+		ACQ_NUM_MEM_REGIONS_REG_ID);
+//	AM: Illegal read from following registers.
+/*	state->Init = input_system_sub_system_reg_load(ID,
+		sub_id,
+		ACQ_INIT_REG_ID);
+*/
+	state->Received_Short_Packets = input_system_sub_system_reg_load(ID,
+		sub_id,
+		ACQ_RECEIVED_SHORT_PACKETS_REG_ID);
+	state->Received_Long_Packets = input_system_sub_system_reg_load(ID,
+		sub_id,
+		ACQ_RECEIVED_LONG_PACKETS_REG_ID);
+	state->Last_Command = input_system_sub_system_reg_load(ID,
+		sub_id,
+		ACQ_LAST_COMMAND_REG_ID);
+	state->Next_Command = input_system_sub_system_reg_load(ID,
+		sub_id,
+		ACQ_NEXT_COMMAND_REG_ID);
+	state->Last_Acknowledge = input_system_sub_system_reg_load(ID,
+		sub_id,
+		ACQ_LAST_ACKNOWLEDGE_REG_ID);
+	state->Next_Acknowledge = input_system_sub_system_reg_load(ID,
+		sub_id,
+		ACQ_NEXT_ACKNOWLEDGE_REG_ID);
+	state->FSM_State_Info = input_system_sub_system_reg_load(ID,
+		sub_id,
+		ACQ_FSM_STATE_INFO_REG_ID);
+	state->Int_Cntr_Info = input_system_sub_system_reg_load(ID,
+		sub_id,
+		ACQ_INT_CNTR_INFO_REG_ID);
+
+return;
+}
+
+STORAGE_CLASS_INLINE void ctrl_unit_get_state(
+	const input_system_ID_t			ID,
+	const sub_system_ID_t			sub_id,
+	ctrl_unit_state_t			*state)
+{
+	assert(sub_id == CTRL_UNIT0_ID);
+	assert(state != NULL);
+
+	state->captA_start_addr = input_system_sub_system_reg_load(ID,
+		sub_id,
+		ISYS_CTRL_CAPT_START_ADDR_A_REG_ID);
+	state->captB_start_addr = input_system_sub_system_reg_load(ID,
+		sub_id,
+		ISYS_CTRL_CAPT_START_ADDR_B_REG_ID);
+	state->captC_start_addr = input_system_sub_system_reg_load(ID,
+		sub_id,
+		ISYS_CTRL_CAPT_START_ADDR_C_REG_ID);
+	state->captA_mem_region_size = input_system_sub_system_reg_load(ID,
+		sub_id,
+		ISYS_CTRL_CAPT_MEM_REGION_SIZE_A_REG_ID);
+	state->captB_mem_region_size = input_system_sub_system_reg_load(ID,
+		sub_id,
+		ISYS_CTRL_CAPT_MEM_REGION_SIZE_B_REG_ID);
+	state->captC_mem_region_size = input_system_sub_system_reg_load(ID,
+		sub_id,
+		ISYS_CTRL_CAPT_MEM_REGION_SIZE_C_REG_ID);
+	state->captA_num_mem_regions = input_system_sub_system_reg_load(ID,
+		sub_id,
+		ISYS_CTRL_CAPT_NUM_MEM_REGIONS_A_REG_ID);
+	state->captB_num_mem_regions = input_system_sub_system_reg_load(ID,
+		sub_id,
+		ISYS_CTRL_CAPT_NUM_MEM_REGIONS_B_REG_ID);
+	state->captC_num_mem_regions = input_system_sub_system_reg_load(ID,
+		sub_id,
+		ISYS_CTRL_CAPT_NUM_MEM_REGIONS_C_REG_ID);
+	state->acq_start_addr = input_system_sub_system_reg_load(ID,
+		sub_id,
+		ISYS_CTRL_ACQ_START_ADDR_REG_ID);
+	state->acq_mem_region_size = input_system_sub_system_reg_load(ID,
+		sub_id,
+		ISYS_CTRL_ACQ_MEM_REGION_SIZE_REG_ID);
+	state->acq_num_mem_regions = input_system_sub_system_reg_load(ID,
+		sub_id,
+		ISYS_CTRL_ACQ_NUM_MEM_REGIONS_REG_ID);
+//	AM: Illegal read from following registers.
+/*	state->ctrl_init = input_system_sub_system_reg_load(ID,
+		sub_id,
+		ISYS_CTRL_INIT_REG_ID);
+*/
+	state->last_cmd = input_system_sub_system_reg_load(ID,
+		sub_id,
+		ISYS_CTRL_LAST_COMMAND_REG_ID);
+	state->next_cmd = input_system_sub_system_reg_load(ID,
+		sub_id,
+		ISYS_CTRL_NEXT_COMMAND_REG_ID);
+	state->last_ack = input_system_sub_system_reg_load(ID,
+		sub_id,
+		ISYS_CTRL_LAST_ACKNOWLEDGE_REG_ID);
+	state->next_ack = input_system_sub_system_reg_load(ID,
+		sub_id,
+		ISYS_CTRL_NEXT_ACKNOWLEDGE_REG_ID);
+	state->top_fsm_state = input_system_sub_system_reg_load(ID,
+		sub_id,
+		ISYS_CTRL_FSM_STATE_INFO_REG_ID);
+	state->captA_fsm_state = input_system_sub_system_reg_load(ID,
+		sub_id,
+		ISYS_CTRL_CAPT_A_FSM_STATE_INFO_REG_ID);
+	state->captB_fsm_state = input_system_sub_system_reg_load(ID,
+		sub_id,
+		ISYS_CTRL_CAPT_B_FSM_STATE_INFO_REG_ID);
+	state->captC_fsm_state = input_system_sub_system_reg_load(ID,
+		sub_id,
+		ISYS_CTRL_CAPT_C_FSM_STATE_INFO_REG_ID);
+	state->acq_fsm_state = input_system_sub_system_reg_load(ID,
+		sub_id,
+		ISYS_CTRL_ACQ_FSM_STATE_INFO_REG_ID);
+	state->capt_reserve_one_mem_region = input_system_sub_system_reg_load(ID,
+		sub_id,
+		ISYS_CTRL_CAPT_RESERVE_ONE_MEM_REGION_REG_ID);
+
+return;
+}
+
+STORAGE_CLASS_INLINE void mipi_port_get_state(
+	const rx_ID_t				ID,
+	const mipi_port_ID_t			port_ID,
+	mipi_port_state_t			*state)
+{
+	int	i;
+
+	assert(ID < N_RX_ID);
+	assert(port_ID < N_MIPI_PORT_ID);
+	assert(state != NULL);
+
+	state->device_ready = receiver_port_reg_load(ID,
+		port_ID, _HRT_CSS_RECEIVER_DEVICE_READY_REG_IDX);
+	state->irq_status = receiver_port_reg_load(ID,
+		port_ID, _HRT_CSS_RECEIVER_IRQ_STATUS_REG_IDX);
+	state->irq_enable = receiver_port_reg_load(ID,
+		port_ID, _HRT_CSS_RECEIVER_IRQ_ENABLE_REG_IDX);
+	state->timeout_count = receiver_port_reg_load(ID,
+		port_ID, _HRT_CSS_RECEIVER_TIMEOUT_COUNT_REG_IDX);
+	state->init_count = (uint16_t)receiver_port_reg_load(ID,
+		port_ID, _HRT_CSS_RECEIVER_INIT_COUNT_REG_IDX);
+	state->raw16_18 = (uint16_t)receiver_port_reg_load(ID,
+		port_ID, _HRT_CSS_RECEIVER_RAW16_18_DATAID_REG_IDX);
+	state->sync_count = receiver_port_reg_load(ID,
+		port_ID, _HRT_CSS_RECEIVER_SYNC_COUNT_REG_IDX);
+	state->rx_count = receiver_port_reg_load(ID,
+		port_ID, _HRT_CSS_RECEIVER_RX_COUNT_REG_IDX);
+
+	for (i = 0; i < MIPI_4LANE_CFG ; i++) {
+		state->lane_sync_count[i] = (uint8_t)((state->sync_count)>>(i*8));
+		state->lane_rx_count[i] = (uint8_t)((state->rx_count)>>(i*8));
+	}
+
+return;
+}
+
+STORAGE_CLASS_INLINE void rx_channel_get_state(
+	const rx_ID_t					ID,
+	const unsigned int				ch_id,
+	rx_channel_state_t				*state)
+{
+	int	i;
+
+	assert(ID < N_RX_ID);
+	assert(ch_id < N_RX_CHANNEL_ID);
+	assert(state != NULL);
+
+	switch (ch_id) {
+		case 0:
+			state->comp_scheme0 = receiver_reg_load(ID,
+				_HRT_CSS_RECEIVER_2400_COMP_SCHEME_VC0_REG0_IDX);
+			state->comp_scheme1 = receiver_reg_load(ID,
+				_HRT_CSS_RECEIVER_2400_COMP_SCHEME_VC0_REG1_IDX);
+	break;
+		case 1:
+			state->comp_scheme0 = receiver_reg_load(ID,
+				_HRT_CSS_RECEIVER_2400_COMP_SCHEME_VC1_REG0_IDX);
+			state->comp_scheme1 = receiver_reg_load(ID,
+				_HRT_CSS_RECEIVER_2400_COMP_SCHEME_VC1_REG1_IDX);
+	break;
+		case 2:
+			state->comp_scheme0 = receiver_reg_load(ID,
+				_HRT_CSS_RECEIVER_2400_COMP_SCHEME_VC2_REG0_IDX);
+			state->comp_scheme1 = receiver_reg_load(ID,
+				_HRT_CSS_RECEIVER_2400_COMP_SCHEME_VC2_REG1_IDX);
+	break;
+		case 3:
+			state->comp_scheme0 = receiver_reg_load(ID,
+				_HRT_CSS_RECEIVER_2400_COMP_SCHEME_VC3_REG0_IDX);
+			state->comp_scheme1 = receiver_reg_load(ID,
+				_HRT_CSS_RECEIVER_2400_COMP_SCHEME_VC3_REG1_IDX);
+	break;
+	}
+
+/* See Table 7.1.17,..., 7.1.24 */
+	for (i = 0; i < 6; i++) {
+		uint8_t	val = (uint8_t)((state->comp_scheme0)>>(i*5)) & 0x1f;
+		state->comp[i] = (mipi_compressor_t)(val & 0x07);
+		state->pred[i] = (mipi_predictor_t)((val & 0x18) >> 3);
+	}
+	for (i = 6; i < N_MIPI_FORMAT_CUSTOM; i++) {
+		uint8_t	val = (uint8_t)((state->comp_scheme0)>>((i-6)*5)) & 0x1f;
+		state->comp[i] = (mipi_compressor_t)(val & 0x07);
+		state->pred[i] = (mipi_predictor_t)((val & 0x18) >> 3);
+	}
+
+return;
+}
+
+// MW: "2400" in the name is not good, but this is to avoid a naming conflict
+input_system_cfg2400_t config;
+
+static void receiver_rst(
+	const rx_ID_t				ID)
+{
+	mipi_port_ID_t		port_id;
+
+	assert(ID < N_RX_ID);
+
+// Disable all ports.
+	for (port_id = MIPI_PORT0_ID; port_id < N_MIPI_PORT_ID; port_id++) {
+		receiver_port_enable(ID, port_id, false);
+	}
+
+	// AM: Additional actions for stopping receiver?
+
+	return;
+}
+
+//Single function to reset all the devices mapped via GP_DEVICE.
+static void gp_device_rst(const gp_device_ID_t		ID)
+{
+	assert(ID < N_GP_DEVICE_ID);
+
+	gp_device_reg_store(ID, _REG_GP_SYNCGEN_ENABLE_ADDR, ZERO);
+	// gp_device_reg_store(ID, _REG_GP_SYNCGEN_FREE_RUNNING_ADDR, ZERO);
+	// gp_device_reg_store(ID, _REG_GP_SYNCGEN_PAUSE_ADDR, ONE);
+	// gp_device_reg_store(ID, _REG_GP_NR_FRAMES_ADDR, ZERO);
+	// gp_device_reg_store(ID, _REG_GP_SYNGEN_NR_PIX_ADDR, ZERO);
+	// gp_device_reg_store(ID, _REG_GP_SYNGEN_NR_PIX_ADDR, ZERO);
+	// gp_device_reg_store(ID, _REG_GP_SYNGEN_NR_LINES_ADDR, ZERO);
+	// gp_device_reg_store(ID, _REG_GP_SYNGEN_HBLANK_CYCLES_ADDR, ZERO);
+	// gp_device_reg_store(ID, _REG_GP_SYNGEN_VBLANK_CYCLES_ADDR, ZERO);
+// AM: Following calls cause strange warnings. Probably they should not be initialized.
+//	gp_device_reg_store(ID, _REG_GP_ISEL_SOF_ADDR, ZERO);
+//	gp_device_reg_store(ID, _REG_GP_ISEL_EOF_ADDR, ZERO);
+//	gp_device_reg_store(ID, _REG_GP_ISEL_SOL_ADDR, ZERO);
+//	gp_device_reg_store(ID, _REG_GP_ISEL_EOL_ADDR, ZERO);
+	gp_device_reg_store(ID, _REG_GP_ISEL_LFSR_ENABLE_ADDR, ZERO);
+	gp_device_reg_store(ID, _REG_GP_ISEL_LFSR_ENABLE_B_ADDR, ZERO);
+	gp_device_reg_store(ID, _REG_GP_ISEL_LFSR_RESET_VALUE_ADDR, ZERO);
+	gp_device_reg_store(ID, _REG_GP_ISEL_TPG_ENABLE_ADDR, ZERO);
+	gp_device_reg_store(ID, _REG_GP_ISEL_TPG_ENABLE_B_ADDR, ZERO);
+	gp_device_reg_store(ID, _REG_GP_ISEL_HOR_CNT_MASK_ADDR, ZERO);
+	gp_device_reg_store(ID, _REG_GP_ISEL_VER_CNT_MASK_ADDR, ZERO);
+	gp_device_reg_store(ID, _REG_GP_ISEL_XY_CNT_MASK_ADDR, ZERO);
+	gp_device_reg_store(ID, _REG_GP_ISEL_HOR_CNT_DELTA_ADDR, ZERO);
+	gp_device_reg_store(ID, _REG_GP_ISEL_VER_CNT_DELTA_ADDR, ZERO);
+	gp_device_reg_store(ID, _REG_GP_ISEL_TPG_MODE_ADDR, ZERO);
+	gp_device_reg_store(ID, _REG_GP_ISEL_TPG_RED1_ADDR, ZERO);
+	gp_device_reg_store(ID, _REG_GP_ISEL_TPG_GREEN1_ADDR, ZERO);
+	gp_device_reg_store(ID, _REG_GP_ISEL_TPG_BLUE1_ADDR, ZERO);
+	gp_device_reg_store(ID, _REG_GP_ISEL_TPG_RED2_ADDR, ZERO);
+	gp_device_reg_store(ID, _REG_GP_ISEL_TPG_GREEN2_ADDR, ZERO);
+	gp_device_reg_store(ID, _REG_GP_ISEL_TPG_BLUE2_ADDR, ZERO);
+	//gp_device_reg_store(ID, _REG_GP_ISEL_CH_ID_ADDR, ZERO);
+	//gp_device_reg_store(ID, _REG_GP_ISEL_FMT_TYPE_ADDR, ZERO);
+	gp_device_reg_store(ID, _REG_GP_ISEL_DATA_SEL_ADDR, ZERO);
+	gp_device_reg_store(ID, _REG_GP_ISEL_SBAND_SEL_ADDR, ZERO);
+	gp_device_reg_store(ID, _REG_GP_ISEL_SYNC_SEL_ADDR, ZERO);
+	//	gp_device_reg_store(ID, _REG_GP_SYNCGEN_HOR_CNT_ADDR, ZERO);
+	//	gp_device_reg_store(ID, _REG_GP_SYNCGEN_VER_CNT_ADDR, ZERO);
+	//	gp_device_reg_store(ID, _REG_GP_SYNCGEN_FRAME_CNT_ADDR, ZERO);
+	gp_device_reg_store(ID, _REG_GP_SOFT_RESET_ADDR, ZERO); // AM: Maybe this soft reset is not safe.
+
+	return;
+}
+
+static void input_selector_cfg_for_sensor(const gp_device_ID_t ID)
+{
+	assert(ID < N_GP_DEVICE_ID);
+
+	gp_device_reg_store(ID, _REG_GP_ISEL_SOF_ADDR, ONE);
+	gp_device_reg_store(ID, _REG_GP_ISEL_EOF_ADDR, ONE);
+	gp_device_reg_store(ID, _REG_GP_ISEL_SOL_ADDR, ONE);
+	gp_device_reg_store(ID, _REG_GP_ISEL_EOL_ADDR, ONE);
+	gp_device_reg_store(ID, _REG_GP_ISEL_CH_ID_ADDR, ZERO);
+	gp_device_reg_store(ID, _REG_GP_ISEL_FMT_TYPE_ADDR, ZERO);
+	gp_device_reg_store(ID, _REG_GP_ISEL_DATA_SEL_ADDR, ZERO);
+	gp_device_reg_store(ID, _REG_GP_ISEL_SBAND_SEL_ADDR, ZERO);
+	gp_device_reg_store(ID, _REG_GP_ISEL_SYNC_SEL_ADDR, ZERO);
+	gp_device_reg_store(ID, _REG_GP_SOFT_RESET_ADDR, ZERO);
+
+	return;
+}
+
+static void input_switch_rst(const gp_device_ID_t ID)
+{
+	int addr;
+
+	assert(ID < N_GP_DEVICE_ID);
+
+	// Initialize the data&hsync LUT.
+	for (addr = _REG_GP_IFMT_input_switch_lut_reg0;
+			 addr <= _REG_GP_IFMT_input_switch_lut_reg7; addr += SIZEOF_HRT_REG) {
+
+		gp_device_reg_store(ID, addr, ZERO);
+	}
+
+	// Initialize the vsync LUT.
+	gp_device_reg_store(ID,
+		_REG_GP_IFMT_input_switch_fsync_lut,
+		ZERO);
+
+	return;
+}
+
+static void input_switch_cfg(
+	const gp_device_ID_t			ID,
+	const input_switch_cfg_t * const	cfg)
+{
+	int addr_offset;
+
+	assert(ID < N_GP_DEVICE_ID);
+	assert(cfg != NULL);
+
+	// Initialize the data&hsync LUT.
+	for (addr_offset = 0; addr_offset < N_RX_CHANNEL_ID * 2; addr_offset++) {
+		assert(addr_offset * SIZEOF_HRT_REG + _REG_GP_IFMT_input_switch_lut_reg0 <= _REG_GP_IFMT_input_switch_lut_reg7);
+		gp_device_reg_store(ID,
+			_REG_GP_IFMT_input_switch_lut_reg0 + addr_offset * SIZEOF_HRT_REG,
+			cfg->hsync_data_reg[addr_offset]);
+	}
+
+	// Initialize the vsync LUT.
+	gp_device_reg_store(ID,
+		_REG_GP_IFMT_input_switch_fsync_lut,
+		cfg->vsync_data_reg);
+
+	return;
+}
+
+
+static void input_system_network_rst(const input_system_ID_t ID)
+{
+	unsigned int sub_id;
+
+	// Reset all 3 multicasts.
+	input_system_sub_system_reg_store(ID,
+		GPREGS_UNIT0_ID,
+		HIVE_ISYS_GPREG_MULTICAST_A_IDX,
+		INPUT_SYSTEM_DISCARD_ALL);
+	input_system_sub_system_reg_store(ID,
+		GPREGS_UNIT0_ID,
+		HIVE_ISYS_GPREG_MULTICAST_B_IDX,
+		INPUT_SYSTEM_DISCARD_ALL);
+	input_system_sub_system_reg_store(ID,
+		GPREGS_UNIT0_ID,
+		HIVE_ISYS_GPREG_MULTICAST_C_IDX,
+		INPUT_SYSTEM_DISCARD_ALL);
+
+	// Reset stream mux.
+	input_system_sub_system_reg_store(ID,
+		GPREGS_UNIT0_ID,
+		HIVE_ISYS_GPREG_MUX_IDX,
+		N_INPUT_SYSTEM_MULTIPLEX);
+
+	// Reset 3 capture units.
+	for (sub_id = CAPTURE_UNIT0_ID; sub_id < CAPTURE_UNIT0_ID + N_CAPTURE_UNIT_ID; sub_id++) {
+		input_system_sub_system_reg_store(ID,
+			sub_id,
+			CAPT_INIT_REG_ID,
+			1U << CAPT_INIT_RST_REG_BIT);
+	}
+
+	// Reset acquisition unit.
+	for (sub_id = ACQUISITION_UNIT0_ID; sub_id < ACQUISITION_UNIT0_ID + N_ACQUISITION_UNIT_ID; sub_id++) {
+		input_system_sub_system_reg_store(ID,
+			sub_id,
+			ACQ_INIT_REG_ID,
+			1U << ACQ_INIT_RST_REG_BIT);
+	}
+
+	// DMA unit reset is not needed.
+
+	// Reset controller units.
+	// NB: In future we need to keep part of ctrl_state for split capture and
+	for (sub_id = CTRL_UNIT0_ID; sub_id < CTRL_UNIT0_ID + N_CTRL_UNIT_ID; sub_id++) {
+		input_system_sub_system_reg_store(ID,
+			sub_id,
+			ISYS_CTRL_INIT_REG_ID,
+			1U); //AM: Is there any named constant?
+	}
+
+	return;
+}
+
+// Function that resets current configuration.
+input_system_error_t input_system_configuration_reset(void)
+{
+	unsigned int i;
+
+	receiver_rst(RX0_ID);
+
+	input_system_network_rst(INPUT_SYSTEM0_ID);
+
+	gp_device_rst(INPUT_SYSTEM0_ID);
+
+	input_switch_rst(INPUT_SYSTEM0_ID);
+
+	//target_rst();
+
+	// Reset IRQ_CTRLs.
+
+	// Reset configuration data structures.
+	for (i = 0; i < N_CHANNELS; i++ ) {
+		config.ch_flags[i] = INPUT_SYSTEM_CFG_FLAG_RESET;
+		config.target_isp_flags[i] = INPUT_SYSTEM_CFG_FLAG_RESET;
+		config.target_sp_flags[i] = INPUT_SYSTEM_CFG_FLAG_RESET;
+		config.target_strm2mem_flags[i] = INPUT_SYSTEM_CFG_FLAG_RESET;
+	}
+
+	for (i = 0; i < N_CSI_PORTS; i++ ) {
+		config.csi_buffer_flags[i]	 = INPUT_SYSTEM_CFG_FLAG_RESET;
+		config.multicast[i]		 = INPUT_SYSTEM_CFG_FLAG_RESET;
+	}
+
+	config.source_type_flags				 = INPUT_SYSTEM_CFG_FLAG_RESET;
+	config.acquisition_buffer_unique_flags	 = INPUT_SYSTEM_CFG_FLAG_RESET;
+	config.unallocated_ib_mem_words			 = IB_CAPACITY_IN_WORDS;
+	//config.acq_allocated_ib_mem_words		 = 0;
+
+	// Set the start of the session cofiguration.
+	config.session_flags = INPUT_SYSTEM_CFG_FLAG_REQUIRED;
+
+	return INPUT_SYSTEM_ERR_NO_ERROR;
+}
+
+// MW: Comments are good, but doxygen is required, place it at the declaration
+// Function that appends the channel to current configuration.
+static input_system_error_t input_system_configure_channel(
+	const channel_cfg_t		channel)
+{
+	input_system_error_t error = INPUT_SYSTEM_ERR_NO_ERROR;
+	// Check if channel is not already configured.
+	if (config.ch_flags[channel.ch_id] & INPUT_SYSTEM_CFG_FLAG_SET){
+		return INPUT_SYSTEM_ERR_CHANNEL_ALREADY_SET;
+	} else {
+		switch (channel.source_type){
+			case INPUT_SYSTEM_SOURCE_SENSOR :
+				error = input_system_configure_channel_sensor(channel);
+				break;
+			case INPUT_SYSTEM_SOURCE_TPG :
+				return INPUT_SYSTEM_ERR_PARAMETER_NOT_SUPPORTED;
+				break;
+			case INPUT_SYSTEM_SOURCE_PRBS :
+				return INPUT_SYSTEM_ERR_PARAMETER_NOT_SUPPORTED;
+				break;
+			case INPUT_SYSTEM_SOURCE_FIFO :
+				return INPUT_SYSTEM_ERR_PARAMETER_NOT_SUPPORTED;
+				break;
+			default :
+				return INPUT_SYSTEM_ERR_PARAMETER_NOT_SUPPORTED;
+				break;
+		}
+
+		if (error != INPUT_SYSTEM_ERR_NO_ERROR) return error;
+		// Input switch channel configurations must be combined in united config.
+		config.input_switch_cfg.hsync_data_reg[channel.source_cfg.csi_cfg.csi_port * 2] =
+				channel.target_cfg.input_switch_channel_cfg.hsync_data_reg[0];
+		config.input_switch_cfg.hsync_data_reg[channel.source_cfg.csi_cfg.csi_port * 2 + 1] =
+				channel.target_cfg.input_switch_channel_cfg.hsync_data_reg[1];
+		config.input_switch_cfg.vsync_data_reg |=
+				 (channel.target_cfg.input_switch_channel_cfg.vsync_data_reg & 0x7) << (channel.source_cfg.csi_cfg.csi_port * 3);
+
+		// Other targets are just copied and marked as set.
+		config.target_isp[channel.source_cfg.csi_cfg.csi_port] = channel.target_cfg.target_isp_cfg;
+		config.target_sp[channel.source_cfg.csi_cfg.csi_port] = channel.target_cfg.target_sp_cfg;
+		config.target_strm2mem[channel.source_cfg.csi_cfg.csi_port] = channel.target_cfg.target_strm2mem_cfg;
+		config.target_isp_flags[channel.source_cfg.csi_cfg.csi_port] |= INPUT_SYSTEM_CFG_FLAG_SET;
+		config.target_sp_flags[channel.source_cfg.csi_cfg.csi_port] |= INPUT_SYSTEM_CFG_FLAG_SET;
+		config.target_strm2mem_flags[channel.source_cfg.csi_cfg.csi_port] |= INPUT_SYSTEM_CFG_FLAG_SET;
+
+		config.ch_flags[channel.ch_id] = INPUT_SYSTEM_CFG_FLAG_SET;
+	}
+	return INPUT_SYSTEM_ERR_NO_ERROR;
+}
+
+// Function that partitions input buffer space with determining addresses.
+static input_system_error_t input_buffer_configuration(void)
+{
+	uint32_t current_address    = 0;
+	uint32_t unallocated_memory = IB_CAPACITY_IN_WORDS;
+
+	ib_buffer_t 	candidate_buffer_acq  = IB_BUFFER_NULL;
+	uint32_t size_requested;
+	input_system_config_flags_t 	acq_already_specified = INPUT_SYSTEM_CFG_FLAG_RESET;
+	input_system_csi_port_t port;
+	for (port = INPUT_SYSTEM_PORT_A; port < N_INPUT_SYSTEM_PORTS; port++) {
+
+		csi_cfg_t source = config.csi_value[port];//.csi_cfg;
+
+		if ( config.csi_flags[port] & INPUT_SYSTEM_CFG_FLAG_SET) {
+
+			// Check and set csi buffer in input buffer.
+			switch (source.buffering_mode) {
+				case INPUT_SYSTEM_FIFO_CAPTURE :
+				case INPUT_SYSTEM_XMEM_ACQUIRE :
+					config.csi_buffer_flags[port] = INPUT_SYSTEM_CFG_FLAG_BLOCKED; // Well, not used.
+					break;
+
+				case INPUT_SYSTEM_FIFO_CAPTURE_WITH_COUNTING :
+				case INPUT_SYSTEM_SRAM_BUFFERING :
+				case INPUT_SYSTEM_XMEM_BUFFERING :
+				case INPUT_SYSTEM_XMEM_CAPTURE :
+					size_requested = source.csi_buffer.mem_reg_size * source.csi_buffer.nof_mem_regs;
+					if (source.csi_buffer.mem_reg_size > 0
+						&& source.csi_buffer.nof_mem_regs >0
+						&& size_requested <= unallocated_memory
+						) {
+							config.csi_buffer[port].mem_reg_addr = current_address;
+							config.csi_buffer[port].mem_reg_size = source.csi_buffer.mem_reg_size;
+							config.csi_buffer[port].nof_mem_regs = source.csi_buffer.nof_mem_regs;
+							current_address		+= size_requested;
+							unallocated_memory 	-= size_requested;
+							config.csi_buffer_flags[port] = INPUT_SYSTEM_CFG_FLAG_SET;
+					} else {
+							config.csi_buffer_flags[port] |= INPUT_SYSTEM_CFG_FLAG_CONFLICT;
+							return INPUT_SYSTEM_ERR_CONFLICT_ON_RESOURCE;
+					}
+					break;
+
+				default :
+					config.csi_buffer_flags[port] |= INPUT_SYSTEM_CFG_FLAG_CONFLICT;
+					return INPUT_SYSTEM_ERR_PARAMETER_NOT_SUPPORTED;
+					break;
+			}
+
+			// Check acquisition buffer specified but set it later since it has to be unique.
+			switch (source.buffering_mode) {
+				case INPUT_SYSTEM_FIFO_CAPTURE :
+				case INPUT_SYSTEM_SRAM_BUFFERING :
+				case INPUT_SYSTEM_XMEM_CAPTURE :
+					// Nothing to do.
+					break;
+
+				case INPUT_SYSTEM_FIFO_CAPTURE_WITH_COUNTING :
+				case INPUT_SYSTEM_XMEM_BUFFERING :
+				case INPUT_SYSTEM_XMEM_ACQUIRE :
+					if (acq_already_specified == INPUT_SYSTEM_CFG_FLAG_RESET) {
+						size_requested = source.acquisition_buffer.mem_reg_size
+													* source.acquisition_buffer.nof_mem_regs;
+						if (source.acquisition_buffer.mem_reg_size > 0
+							&& source.acquisition_buffer.nof_mem_regs >0
+							&& size_requested <= unallocated_memory
+							) {
+								candidate_buffer_acq = source.acquisition_buffer;
+								acq_already_specified = INPUT_SYSTEM_CFG_FLAG_SET;
+						}
+					} else {
+						// Check if specified acquisition buffer is the same as specified before.
+						if (source.acquisition_buffer.mem_reg_size != candidate_buffer_acq.mem_reg_size
+							|| source.acquisition_buffer.nof_mem_regs !=  candidate_buffer_acq.nof_mem_regs
+						   ) {
+							config.acquisition_buffer_unique_flags |= INPUT_SYSTEM_CFG_FLAG_CONFLICT;
+							return INPUT_SYSTEM_ERR_CONFLICT_ON_RESOURCE;
+						}
+					}
+					break;
+
+				default :
+					return INPUT_SYSTEM_ERR_PARAMETER_NOT_SUPPORTED;
+					break;
+			}
+		} else {
+			config.csi_buffer_flags[port] = INPUT_SYSTEM_CFG_FLAG_BLOCKED;
+		}
+	} // end of for ( port )
+
+	// Set the acquisition buffer at the end.
+	size_requested = candidate_buffer_acq.mem_reg_size * candidate_buffer_acq.nof_mem_regs;
+	if (acq_already_specified == INPUT_SYSTEM_CFG_FLAG_SET
+		&& size_requested <= unallocated_memory) {
+		config.acquisition_buffer_unique.mem_reg_addr = current_address;
+		config.acquisition_buffer_unique.mem_reg_size = candidate_buffer_acq.mem_reg_size;
+		config.acquisition_buffer_unique.nof_mem_regs = candidate_buffer_acq.nof_mem_regs;
+		current_address		+= size_requested;
+		unallocated_memory 	-= size_requested;
+		config.acquisition_buffer_unique_flags = INPUT_SYSTEM_CFG_FLAG_SET;
+
+		assert(current_address <= IB_CAPACITY_IN_WORDS);
+	}
+
+	return INPUT_SYSTEM_ERR_NO_ERROR;
+}
+
+static void capture_unit_configure(
+	const input_system_ID_t			ID,
+	const sub_system_ID_t			sub_id,
+	const ib_buffer_t* const		cfg)
+{
+	assert(ID < N_INPUT_SYSTEM_ID);
+	assert(/*(sub_id >= CAPTURE_UNIT0_ID) &&*/ (sub_id <= CAPTURE_UNIT2_ID)); // Commented part is always true.
+	assert(cfg != NULL);
+
+	input_system_sub_system_reg_store(ID,
+		sub_id,
+		CAPT_START_ADDR_REG_ID,
+		cfg->mem_reg_addr);
+	input_system_sub_system_reg_store(ID,
+		sub_id,
+		CAPT_MEM_REGION_SIZE_REG_ID,
+		cfg->mem_reg_size);
+	input_system_sub_system_reg_store(ID,
+		sub_id,
+		CAPT_NUM_MEM_REGIONS_REG_ID,
+		cfg->nof_mem_regs);
+
+	return;
+}
+
+
+static void acquisition_unit_configure(
+	const input_system_ID_t			ID,
+	const sub_system_ID_t			sub_id,
+	const ib_buffer_t* const		cfg)
+{
+	assert(ID < N_INPUT_SYSTEM_ID);
+	assert(sub_id == ACQUISITION_UNIT0_ID);
+	assert(cfg != NULL);
+
+	input_system_sub_system_reg_store(ID,
+		sub_id,
+		ACQ_START_ADDR_REG_ID,
+		cfg->mem_reg_addr);
+	input_system_sub_system_reg_store(ID,
+		sub_id,
+		ACQ_NUM_MEM_REGIONS_REG_ID,
+		cfg->nof_mem_regs);
+	input_system_sub_system_reg_store(ID,
+		sub_id,
+		ACQ_MEM_REGION_SIZE_REG_ID,
+		cfg->mem_reg_size);
+
+	return;
+}
+
+
+static void ctrl_unit_configure(
+	const input_system_ID_t			ID,
+	const sub_system_ID_t			sub_id,
+	const ctrl_unit_cfg_t* const		cfg)
+{
+	assert(ID < N_INPUT_SYSTEM_ID);
+	assert(sub_id == CTRL_UNIT0_ID);
+	assert(cfg != NULL);
+
+	input_system_sub_system_reg_store(ID,
+		sub_id,
+		ISYS_CTRL_CAPT_START_ADDR_A_REG_ID,
+		cfg->buffer_mipi[CAPTURE_UNIT0_ID].mem_reg_addr);
+	input_system_sub_system_reg_store(ID,
+		sub_id,
+		ISYS_CTRL_CAPT_MEM_REGION_SIZE_A_REG_ID,
+		cfg->buffer_mipi[CAPTURE_UNIT0_ID].mem_reg_size);
+	input_system_sub_system_reg_store(ID,
+		sub_id,
+		ISYS_CTRL_CAPT_NUM_MEM_REGIONS_A_REG_ID,
+		cfg->buffer_mipi[CAPTURE_UNIT0_ID].nof_mem_regs);
+
+	input_system_sub_system_reg_store(ID,
+		sub_id,
+		ISYS_CTRL_CAPT_START_ADDR_B_REG_ID,
+		cfg->buffer_mipi[CAPTURE_UNIT1_ID].mem_reg_addr);
+	input_system_sub_system_reg_store(ID,
+		sub_id,
+		ISYS_CTRL_CAPT_MEM_REGION_SIZE_B_REG_ID,
+		cfg->buffer_mipi[CAPTURE_UNIT1_ID].mem_reg_size);
+	input_system_sub_system_reg_store(ID,
+		sub_id,
+		ISYS_CTRL_CAPT_NUM_MEM_REGIONS_B_REG_ID,
+		cfg->buffer_mipi[CAPTURE_UNIT1_ID].nof_mem_regs);
+
+	input_system_sub_system_reg_store(ID,
+		sub_id,
+		ISYS_CTRL_CAPT_START_ADDR_C_REG_ID,
+		cfg->buffer_mipi[CAPTURE_UNIT2_ID].mem_reg_addr);
+	input_system_sub_system_reg_store(ID,
+		sub_id,
+		ISYS_CTRL_CAPT_MEM_REGION_SIZE_C_REG_ID,
+		cfg->buffer_mipi[CAPTURE_UNIT2_ID].mem_reg_size);
+	input_system_sub_system_reg_store(ID,
+		sub_id,
+		ISYS_CTRL_CAPT_NUM_MEM_REGIONS_C_REG_ID,
+		cfg->buffer_mipi[CAPTURE_UNIT2_ID].nof_mem_regs);
+
+	input_system_sub_system_reg_store(ID,
+		sub_id,
+		ISYS_CTRL_ACQ_START_ADDR_REG_ID,
+		cfg->buffer_acquire[ACQUISITION_UNIT0_ID - ACQUISITION_UNIT0_ID].mem_reg_addr);
+	input_system_sub_system_reg_store(ID,
+		sub_id,
+		ISYS_CTRL_ACQ_MEM_REGION_SIZE_REG_ID,
+		cfg->buffer_acquire[ACQUISITION_UNIT0_ID - ACQUISITION_UNIT0_ID].mem_reg_size);
+	input_system_sub_system_reg_store(ID,
+		sub_id,
+		ISYS_CTRL_ACQ_NUM_MEM_REGIONS_REG_ID,
+		cfg->buffer_acquire[ACQUISITION_UNIT0_ID - ACQUISITION_UNIT0_ID].nof_mem_regs);
+	input_system_sub_system_reg_store(ID,
+                sub_id,
+                ISYS_CTRL_CAPT_RESERVE_ONE_MEM_REGION_REG_ID,
+		0);
+	return;
+}
+
+static void input_system_network_configure(
+	const input_system_ID_t				ID,
+	const input_system_network_cfg_t * const 	cfg)
+{
+	uint32_t sub_id;
+
+	assert(ID < N_INPUT_SYSTEM_ID);
+	assert(cfg != NULL);
+
+	// Set all 3 multicasts.
+	input_system_sub_system_reg_store(ID,
+		GPREGS_UNIT0_ID,
+		HIVE_ISYS_GPREG_MULTICAST_A_IDX,
+		cfg->multicast_cfg[CAPTURE_UNIT0_ID]);
+	input_system_sub_system_reg_store(ID,
+		GPREGS_UNIT0_ID,
+		HIVE_ISYS_GPREG_MULTICAST_B_IDX,
+		cfg->multicast_cfg[CAPTURE_UNIT1_ID]);
+	input_system_sub_system_reg_store(ID,
+		GPREGS_UNIT0_ID,
+		HIVE_ISYS_GPREG_MULTICAST_C_IDX,
+		cfg->multicast_cfg[CAPTURE_UNIT2_ID]);
+
+	// Set stream mux.
+	input_system_sub_system_reg_store(ID,
+		GPREGS_UNIT0_ID,
+		HIVE_ISYS_GPREG_MUX_IDX,
+		cfg->mux_cfg);
+
+	// Set capture units.
+	for (sub_id = CAPTURE_UNIT0_ID; sub_id < CAPTURE_UNIT0_ID + N_CAPTURE_UNIT_ID; sub_id++) {
+		capture_unit_configure(ID,
+			sub_id,
+			&(cfg->ctrl_unit_cfg[ID].buffer_mipi[sub_id - CAPTURE_UNIT0_ID]));
+	}
+
+	// Set acquisition units.
+	for (sub_id = ACQUISITION_UNIT0_ID; sub_id < ACQUISITION_UNIT0_ID + N_ACQUISITION_UNIT_ID; sub_id++) {
+		acquisition_unit_configure(ID,
+			sub_id,
+			&(cfg->ctrl_unit_cfg[sub_id - ACQUISITION_UNIT0_ID].buffer_acquire[sub_id - ACQUISITION_UNIT0_ID]));
+	}
+
+	// No DMA configuration needed. Ctrl_unit will fully control it.
+
+	// Set controller units.
+	for (sub_id = CTRL_UNIT0_ID; sub_id < CTRL_UNIT0_ID + N_CTRL_UNIT_ID; sub_id++) {
+		ctrl_unit_configure(ID,
+			sub_id,
+			&(cfg->ctrl_unit_cfg[sub_id - CTRL_UNIT0_ID]));
+	}
+
+	return;
+}
+
+static input_system_error_t configuration_to_registers(void)
+{
+	input_system_network_cfg_t input_system_network_cfg;
+	int i;
+
+	assert(config.source_type_flags & INPUT_SYSTEM_CFG_FLAG_SET);
+
+	switch (config.source_type) {
+		case INPUT_SYSTEM_SOURCE_SENSOR :
+
+			// Determine stream multicasts setting based on the mode of csi_cfg_t.
+			// AM: This should be moved towards earlier function call, e.g. in
+			// the commit function.
+			for (i = MIPI_PORT0_ID; i < N_MIPI_PORT_ID; i++) {
+				if (config.csi_flags[i] & INPUT_SYSTEM_CFG_FLAG_SET) {
+
+					switch (config.csi_value[i].buffering_mode) {
+
+						case INPUT_SYSTEM_FIFO_CAPTURE:
+							config.multicast[i] = INPUT_SYSTEM_CSI_BACKEND;
+							break;
+
+						case INPUT_SYSTEM_XMEM_CAPTURE:
+						case INPUT_SYSTEM_SRAM_BUFFERING:
+						case INPUT_SYSTEM_XMEM_BUFFERING:
+							config.multicast[i] = INPUT_SYSTEM_INPUT_BUFFER;
+							break;
+
+						case INPUT_SYSTEM_FIFO_CAPTURE_WITH_COUNTING:
+							config.multicast[i] = INPUT_SYSTEM_MULTICAST;
+							break;
+
+						case INPUT_SYSTEM_XMEM_ACQUIRE:
+							config.multicast[i] = INPUT_SYSTEM_DISCARD_ALL;
+							break;
+
+						default:
+							config.multicast[i] = INPUT_SYSTEM_DISCARD_ALL;
+							return INPUT_SYSTEM_ERR_PARAMETER_NOT_SUPPORTED;
+							//break;
+					}
+				} else {
+					config.multicast[i]= INPUT_SYSTEM_DISCARD_ALL;
+				}
+
+				input_system_network_cfg.multicast_cfg[i] = config.multicast[i];
+
+			} // for
+
+			input_system_network_cfg.mux_cfg = config.multiplexer;
+
+			input_system_network_cfg.ctrl_unit_cfg[CTRL_UNIT0_ID - CTRL_UNIT0_ID].buffer_mipi[CAPTURE_UNIT0_ID] = config.csi_buffer[MIPI_PORT0_ID];
+			input_system_network_cfg.ctrl_unit_cfg[CTRL_UNIT0_ID - CTRL_UNIT0_ID].buffer_mipi[CAPTURE_UNIT1_ID] = config.csi_buffer[MIPI_PORT1_ID];
+			input_system_network_cfg.ctrl_unit_cfg[CTRL_UNIT0_ID - CTRL_UNIT0_ID].buffer_mipi[CAPTURE_UNIT2_ID] = config.csi_buffer[MIPI_PORT2_ID];
+			input_system_network_cfg.ctrl_unit_cfg[CTRL_UNIT0_ID - CTRL_UNIT0_ID].buffer_acquire[ACQUISITION_UNIT0_ID - ACQUISITION_UNIT0_ID] =
+					config.acquisition_buffer_unique;
+
+			// First set input network around CSI receiver.
+			input_system_network_configure(INPUT_SYSTEM0_ID, &input_system_network_cfg);
+
+			// Set the CSI receiver.
+			//...
+			break;
+
+		case INPUT_SYSTEM_SOURCE_TPG :
+
+			break;
+
+		case INPUT_SYSTEM_SOURCE_PRBS :
+
+			break;
+
+		case INPUT_SYSTEM_SOURCE_FIFO :
+			break;
+
+		default :
+			return INPUT_SYSTEM_ERR_PARAMETER_NOT_SUPPORTED;
+			break;
+
+	} // end of switch (source_type)
+
+	// Set input selector.
+	input_selector_cfg_for_sensor(INPUT_SYSTEM0_ID);
+
+	// Set input switch.
+	input_switch_cfg(INPUT_SYSTEM0_ID, &config.input_switch_cfg);
+
+	// Set input formatters.
+	// AM: IF are set dynamically.
+	return INPUT_SYSTEM_ERR_NO_ERROR;
+}
+
+
+// Function that applies the whole configuration.
+input_system_error_t input_system_configuration_commit(void)
+{
+	// The last configuration step is to configure the input buffer.
+	input_system_error_t error = input_buffer_configuration();
+	if (error != INPUT_SYSTEM_ERR_NO_ERROR) {
+		return error;
+	}
+
+	// Translate the whole configuration into registers.
+	error = configuration_to_registers();
+	if (error != INPUT_SYSTEM_ERR_NO_ERROR) {
+		return error;
+	}
+
+	// Translate the whole configuration into ctrl commands etc.
+
+	return INPUT_SYSTEM_ERR_NO_ERROR;
+}
+
+
+
+// FIFO
+
+input_system_error_t	input_system_csi_fifo_channel_cfg(
+		uint32_t		ch_id,
+		input_system_csi_port_t	port,
+		backend_channel_cfg_t	backend_ch,
+		target_cfg2400_t	target
+)
+{
+	channel_cfg_t channel;
+
+	channel.ch_id 	= ch_id;
+	channel.backend_ch 	= backend_ch;
+	channel.source_type = INPUT_SYSTEM_SOURCE_SENSOR;
+	//channel.source
+	channel.source_cfg.csi_cfg.csi_port			= port;
+	channel.source_cfg.csi_cfg.buffering_mode	= INPUT_SYSTEM_FIFO_CAPTURE;
+	channel.source_cfg.csi_cfg.csi_buffer 			= IB_BUFFER_NULL;
+	channel.source_cfg.csi_cfg.acquisition_buffer	= IB_BUFFER_NULL;
+	channel.source_cfg.csi_cfg.nof_xmem_buffers	= 0;
+
+	channel.target_cfg	= target;
+	return input_system_configure_channel(channel);
+}
+
+
+input_system_error_t	input_system_csi_fifo_channel_with_counting_cfg(
+		uint32_t				ch_id,
+		uint32_t				nof_frames,
+		input_system_csi_port_t			port,
+		backend_channel_cfg_t			backend_ch,
+		uint32_t				csi_mem_reg_size,
+		uint32_t				csi_nof_mem_regs,
+		target_cfg2400_t			target
+)
+{
+	channel_cfg_t channel;
+
+	channel.ch_id 	= ch_id;
+	channel.backend_ch 	= backend_ch;
+	channel.source_type		= INPUT_SYSTEM_SOURCE_SENSOR;
+	//channel.source
+	channel.source_cfg.csi_cfg.csi_port			= port;
+	channel.source_cfg.csi_cfg.buffering_mode	= INPUT_SYSTEM_FIFO_CAPTURE_WITH_COUNTING;
+	channel.source_cfg.csi_cfg.csi_buffer.mem_reg_size		= csi_mem_reg_size;
+	channel.source_cfg.csi_cfg.csi_buffer.nof_mem_regs 		= csi_nof_mem_regs;
+	channel.source_cfg.csi_cfg.csi_buffer.mem_reg_addr		= 0;
+	channel.source_cfg.csi_cfg.acquisition_buffer			= IB_BUFFER_NULL;
+	channel.source_cfg.csi_cfg.nof_xmem_buffers	= nof_frames;
+
+	channel.target_cfg	= target;
+	return input_system_configure_channel(channel);
+}
+
+
+// SRAM
+
+input_system_error_t	input_system_csi_sram_channel_cfg(
+		uint32_t				ch_id,
+		input_system_csi_port_t			port,
+		backend_channel_cfg_t			backend_ch,
+		uint32_t				csi_mem_reg_size,
+		uint32_t				csi_nof_mem_regs,
+	//	uint32_t				acq_mem_reg_size,
+	//	uint32_t				acq_nof_mem_regs,
+		target_cfg2400_t 			target
+)
+{
+	channel_cfg_t channel;
+
+	channel.ch_id 	= ch_id;
+	channel.backend_ch 	= backend_ch;
+	channel.source_type		= INPUT_SYSTEM_SOURCE_SENSOR;
+	//channel.source
+	channel.source_cfg.csi_cfg.csi_port			= port;
+	channel.source_cfg.csi_cfg.buffering_mode	= INPUT_SYSTEM_SRAM_BUFFERING;
+	channel.source_cfg.csi_cfg.csi_buffer.mem_reg_size		= csi_mem_reg_size;
+	channel.source_cfg.csi_cfg.csi_buffer.nof_mem_regs 		= csi_nof_mem_regs;
+	channel.source_cfg.csi_cfg.csi_buffer.mem_reg_addr		= 0;
+	channel.source_cfg.csi_cfg.acquisition_buffer			= IB_BUFFER_NULL;
+	channel.source_cfg.csi_cfg.nof_xmem_buffers	= 0;
+
+	channel.target_cfg	= target;
+	return input_system_configure_channel(channel);
+}
+
+
+//XMEM
+
+// Collects all parameters and puts them in channel_cfg_t.
+input_system_error_t	input_system_csi_xmem_channel_cfg(
+		uint32_t 				ch_id,
+		input_system_csi_port_t			port,
+		backend_channel_cfg_t			backend_ch,
+		uint32_t 				csi_mem_reg_size,
+		uint32_t 				csi_nof_mem_regs,
+		uint32_t 				acq_mem_reg_size,
+		uint32_t 				acq_nof_mem_regs,
+		target_cfg2400_t 			target,
+		uint32_t 				nof_xmem_buffers
+)
+{
+	channel_cfg_t channel;
+
+	channel.ch_id 	= ch_id;
+	channel.backend_ch 	= backend_ch;
+	channel.source_type		= INPUT_SYSTEM_SOURCE_SENSOR;
+	//channel.source
+	channel.source_cfg.csi_cfg.csi_port			= port;
+	channel.source_cfg.csi_cfg.buffering_mode	= INPUT_SYSTEM_XMEM_BUFFERING;
+	channel.source_cfg.csi_cfg.csi_buffer.mem_reg_size		= csi_mem_reg_size;
+	channel.source_cfg.csi_cfg.csi_buffer.nof_mem_regs 		= csi_nof_mem_regs;
+	channel.source_cfg.csi_cfg.csi_buffer.mem_reg_addr		= 0;
+	channel.source_cfg.csi_cfg.acquisition_buffer.mem_reg_size	= acq_mem_reg_size;
+	channel.source_cfg.csi_cfg.acquisition_buffer.nof_mem_regs 	= acq_nof_mem_regs;
+	channel.source_cfg.csi_cfg.acquisition_buffer.mem_reg_addr	= 0;
+	channel.source_cfg.csi_cfg.nof_xmem_buffers	= nof_xmem_buffers;
+
+	channel.target_cfg	= target;
+	return input_system_configure_channel(channel);
+}
+
+
+
+
+input_system_error_t	input_system_csi_xmem_acquire_only_channel_cfg(
+		uint32_t 				ch_id,
+		uint32_t 				nof_frames,
+		input_system_csi_port_t			port,
+		backend_channel_cfg_t			backend_ch,
+		uint32_t 				acq_mem_reg_size,
+		uint32_t 				acq_nof_mem_regs,
+		target_cfg2400_t 			target)
+{
+	channel_cfg_t channel;
+
+	channel.ch_id 	= ch_id;
+	channel.backend_ch 	= backend_ch;
+	channel.source_type		= INPUT_SYSTEM_SOURCE_SENSOR;
+	//channel.source
+	channel.source_cfg.csi_cfg.csi_port			= port;
+	channel.source_cfg.csi_cfg.buffering_mode	= INPUT_SYSTEM_XMEM_ACQUIRE;
+	channel.source_cfg.csi_cfg.csi_buffer		= IB_BUFFER_NULL;
+	channel.source_cfg.csi_cfg.acquisition_buffer.mem_reg_size	= acq_mem_reg_size;
+	channel.source_cfg.csi_cfg.acquisition_buffer.nof_mem_regs 	= acq_nof_mem_regs;
+	channel.source_cfg.csi_cfg.acquisition_buffer.mem_reg_addr	= 0;
+	channel.source_cfg.csi_cfg.nof_xmem_buffers	= nof_frames;
+
+	channel.target_cfg	= target;
+	return input_system_configure_channel(channel);
+}
+
+
+input_system_error_t	input_system_csi_xmem_capture_only_channel_cfg(
+		uint32_t 				ch_id,
+		uint32_t 				nof_frames,
+		input_system_csi_port_t			port,
+		uint32_t 				csi_mem_reg_size,
+		uint32_t 				csi_nof_mem_regs,
+		uint32_t 				acq_mem_reg_size,
+		uint32_t 				acq_nof_mem_regs,
+		target_cfg2400_t 			target)
+{
+	channel_cfg_t channel;
+
+	channel.ch_id 	= ch_id;
+	//channel.backend_ch 	= backend_ch;
+	channel.source_type		= INPUT_SYSTEM_SOURCE_SENSOR;
+	//channel.source
+	channel.source_cfg.csi_cfg.csi_port			= port;
+	//channel.source_cfg.csi_cfg.backend_ch 		= backend_ch;
+	channel.source_cfg.csi_cfg.buffering_mode	= INPUT_SYSTEM_XMEM_CAPTURE;
+	channel.source_cfg.csi_cfg.csi_buffer.mem_reg_size		= csi_mem_reg_size;
+	channel.source_cfg.csi_cfg.csi_buffer.nof_mem_regs 		= csi_nof_mem_regs;
+	channel.source_cfg.csi_cfg.csi_buffer.mem_reg_addr		= 0;
+	channel.source_cfg.csi_cfg.acquisition_buffer.mem_reg_size	= acq_mem_reg_size;
+	channel.source_cfg.csi_cfg.acquisition_buffer.nof_mem_regs 	= acq_nof_mem_regs;
+	channel.source_cfg.csi_cfg.acquisition_buffer.mem_reg_addr	= 0;
+	channel.source_cfg.csi_cfg.nof_xmem_buffers	= nof_frames;
+
+	channel.target_cfg	= target;
+	return input_system_configure_channel(channel);
+}
+
+
+
+// Non - CSI
+
+input_system_error_t	input_system_prbs_channel_cfg(
+		uint32_t 		ch_id,
+		uint32_t		nof_frames,//not used yet
+		uint32_t		seed,
+		uint32_t		sync_gen_width,
+		uint32_t		sync_gen_height,
+		uint32_t		sync_gen_hblank_cycles,
+		uint32_t		sync_gen_vblank_cycles,
+		target_cfg2400_t	target
+)
+{
+	channel_cfg_t channel;
+
+	(void)nof_frames;
+
+	channel.ch_id 	= ch_id;
+	channel.source_type= INPUT_SYSTEM_SOURCE_PRBS;
+
+	channel.source_cfg.prbs_cfg.seed = seed;
+	channel.source_cfg.prbs_cfg.sync_gen_cfg.width         	= sync_gen_width;
+	channel.source_cfg.prbs_cfg.sync_gen_cfg.height        	= sync_gen_height;
+	channel.source_cfg.prbs_cfg.sync_gen_cfg.hblank_cycles	= sync_gen_hblank_cycles;
+	channel.source_cfg.prbs_cfg.sync_gen_cfg.vblank_cycles 	= sync_gen_vblank_cycles;
+
+	channel.target_cfg	= target;
+
+	return input_system_configure_channel(channel);
+}
+
+
+
+input_system_error_t	input_system_tpg_channel_cfg(
+		uint32_t 		ch_id,
+		uint32_t 		nof_frames,//not used yet
+		uint32_t		x_mask,
+		uint32_t		y_mask,
+		uint32_t		x_delta,
+		uint32_t		y_delta,
+		uint32_t		xy_mask,
+		uint32_t		sync_gen_width,
+		uint32_t		sync_gen_height,
+		uint32_t		sync_gen_hblank_cycles,
+		uint32_t		sync_gen_vblank_cycles,
+		target_cfg2400_t	target
+)
+{
+	channel_cfg_t channel;
+
+	(void)nof_frames;
+
+	channel.ch_id 	= ch_id;
+	channel.source_type		= INPUT_SYSTEM_SOURCE_TPG;
+
+	channel.source_cfg.tpg_cfg.x_mask	= x_mask;
+	channel.source_cfg.tpg_cfg.y_mask	= y_mask;
+	channel.source_cfg.tpg_cfg.x_delta	= x_delta;
+	channel.source_cfg.tpg_cfg.y_delta	= y_delta;
+	channel.source_cfg.tpg_cfg.xy_mask	= xy_mask;
+	channel.source_cfg.tpg_cfg.sync_gen_cfg.width         	= sync_gen_width;
+	channel.source_cfg.tpg_cfg.sync_gen_cfg.height        	= sync_gen_height;
+	channel.source_cfg.tpg_cfg.sync_gen_cfg.hblank_cycles	= sync_gen_hblank_cycles;
+	channel.source_cfg.tpg_cfg.sync_gen_cfg.vblank_cycles 	= sync_gen_vblank_cycles;
+
+	channel.target_cfg	= target;
+	return input_system_configure_channel(channel);
+}
+
+// MW: Don't use system specific names, (even in system specific files) "cfg2400" -> cfg
+input_system_error_t	input_system_gpfifo_channel_cfg(
+		uint32_t 		ch_id,
+		uint32_t 		nof_frames, //not used yet
+		target_cfg2400_t	target)
+{
+	channel_cfg_t channel;
+
+	(void)nof_frames;
+
+	channel.ch_id 	= ch_id;
+	channel.source_type	= INPUT_SYSTEM_SOURCE_FIFO;
+
+	channel.target_cfg	= target;
+	return input_system_configure_channel(channel);
+}
+
+///////////////////////////////////////////////////////////////////////////
+//
+// Private specialized functions for channel setting.
+//
+///////////////////////////////////////////////////////////////////////////
+
+// Fills the parameters to config.csi_value[port]
+static input_system_error_t input_system_configure_channel_sensor(
+	const channel_cfg_t channel)
+{
+	const uint32_t port = channel.source_cfg.csi_cfg.csi_port;
+	input_system_error_t status = INPUT_SYSTEM_ERR_NO_ERROR;
+
+	input_system_multiplex_t mux;
+
+	if (port >= N_INPUT_SYSTEM_PORTS)
+		return INPUT_SYSTEM_ERR_GENERIC;
+
+	//check if port > N_INPUT_SYSTEM_MULTIPLEX
+
+	status = set_source_type(&(config.source_type), channel.source_type, &config.source_type_flags);
+	if (status != INPUT_SYSTEM_ERR_NO_ERROR) return status;
+
+	// Check for conflicts on source (implicitly on multicast, capture unit and input buffer).
+
+	status = set_csi_cfg(&(config.csi_value[port]), &channel.source_cfg.csi_cfg, &(config.csi_flags[port]));
+	if (status != INPUT_SYSTEM_ERR_NO_ERROR) return status;
+
+
+	switch (channel.source_cfg.csi_cfg.buffering_mode){
+		case INPUT_SYSTEM_FIFO_CAPTURE:
+
+			// Check for conflicts on mux.
+			mux = INPUT_SYSTEM_MIPI_PORT0 + port;
+			status = input_system_multiplexer_cfg(&config.multiplexer, mux, &config.multiplexer_flags);
+			if (status != INPUT_SYSTEM_ERR_NO_ERROR) return status;
+			config.multicast[port] = INPUT_SYSTEM_CSI_BACKEND;
+
+			// Shared resource, so it should be blocked.
+			//config.mux_flags |= INPUT_SYSTEM_CFG_FLAG_BLOCKED;
+			//config.csi_buffer_flags[port] |= INPUT_SYSTEM_CFG_FLAG_BLOCKED;
+			//config.acquisition_buffer_unique_flags |= INPUT_SYSTEM_CFG_FLAG_BLOCKED;
+
+			break;
+		case INPUT_SYSTEM_SRAM_BUFFERING :
+
+			// Check for conflicts on mux.
+			mux = INPUT_SYSTEM_ACQUISITION_UNIT;
+			status = input_system_multiplexer_cfg(&config.multiplexer, mux, &config.multiplexer_flags);
+			if (status != INPUT_SYSTEM_ERR_NO_ERROR) return status;
+			config.multicast[port] = INPUT_SYSTEM_INPUT_BUFFER;
+
+			// Shared resource, so it should be blocked.
+			//config.mux_flags |= INPUT_SYSTEM_CFG_FLAG_BLOCKED;
+			//config.csi_buffer_flags[port] |= INPUT_SYSTEM_CFG_FLAG_BLOCKED;
+			//config.acquisition_buffer_unique_flags |= INPUT_SYSTEM_CFG_FLAG_BLOCKED;
+
+			break;
+		case INPUT_SYSTEM_XMEM_BUFFERING :
+
+			// Check for conflicts on mux.
+			mux = INPUT_SYSTEM_ACQUISITION_UNIT;
+			status = input_system_multiplexer_cfg(&config.multiplexer, mux, &config.multiplexer_flags);
+			if (status != INPUT_SYSTEM_ERR_NO_ERROR) return status;
+			config.multicast[port] = INPUT_SYSTEM_INPUT_BUFFER;
+
+			// Shared resource, so it should be blocked.
+			//config.mux_flags |= INPUT_SYSTEM_CFG_FLAG_BLOCKED;
+			//config.csi_buffer_flags[port] |= INPUT_SYSTEM_CFG_FLAG_BLOCKED;
+			//config.acquisition_buffer_unique_flags |= INPUT_SYSTEM_CFG_FLAG_BLOCKED;
+
+			break;
+		case INPUT_SYSTEM_FIFO_CAPTURE_WITH_COUNTING :
+			return INPUT_SYSTEM_ERR_PARAMETER_NOT_SUPPORTED;
+			break;
+		case INPUT_SYSTEM_XMEM_CAPTURE :
+			return INPUT_SYSTEM_ERR_PARAMETER_NOT_SUPPORTED;
+			break;
+		case INPUT_SYSTEM_XMEM_ACQUIRE :
+			return INPUT_SYSTEM_ERR_PARAMETER_NOT_SUPPORTED;
+			break;
+		default :
+			return INPUT_SYSTEM_ERR_PARAMETER_NOT_SUPPORTED;
+			break;
+	}
+	return INPUT_SYSTEM_ERR_NO_ERROR;
+}
+
+// Test flags and set structure.
+static input_system_error_t set_source_type(
+		input_system_source_t * const 			lhs,
+		const input_system_source_t 			rhs,
+		input_system_config_flags_t * const	 	flags)
+{
+	// MW: Not enough asserts
+	assert(lhs != NULL);
+	assert(flags != NULL);
+
+	if ((*flags) & INPUT_SYSTEM_CFG_FLAG_BLOCKED) {
+		*flags |= INPUT_SYSTEM_CFG_FLAG_CONFLICT;
+		return INPUT_SYSTEM_ERR_CONFLICT_ON_RESOURCE;
+	}
+
+	if ((*flags) & INPUT_SYSTEM_CFG_FLAG_SET) {
+		// Check for consistency with already set value.
+		if ((*lhs) == (rhs)) {
+			return INPUT_SYSTEM_ERR_NO_ERROR;
+		}
+		else {
+			*flags |= INPUT_SYSTEM_CFG_FLAG_CONFLICT;
+			return INPUT_SYSTEM_ERR_CONFLICT_ON_RESOURCE;
+		}
+	}
+	// Check the value (individually).
+	if (rhs >= N_INPUT_SYSTEM_SOURCE) {
+		*flags |= INPUT_SYSTEM_CFG_FLAG_CONFLICT;
+		return INPUT_SYSTEM_ERR_CONFLICT_ON_RESOURCE;
+	}
+	// Set the value.
+	*lhs = rhs;
+
+	*flags |= INPUT_SYSTEM_CFG_FLAG_SET;
+	return INPUT_SYSTEM_ERR_NO_ERROR;
+}
+
+
+// Test flags and set structure.
+static input_system_error_t set_csi_cfg(
+		csi_cfg_t* const 			lhs,
+		const csi_cfg_t* const 			rhs,
+		input_system_config_flags_t * const 	flags)
+{
+	uint32_t memory_required;
+	uint32_t acq_memory_required;
+
+	assert(lhs != NULL);
+	assert(flags != NULL);
+
+	if ((*flags) & INPUT_SYSTEM_CFG_FLAG_BLOCKED) {
+		*flags |= INPUT_SYSTEM_CFG_FLAG_CONFLICT;
+		return INPUT_SYSTEM_ERR_CONFLICT_ON_RESOURCE;
+	}
+
+	if (*flags & INPUT_SYSTEM_CFG_FLAG_SET) {
+		// check for consistency with already set value.
+		if (/*lhs->backend_ch == rhs.backend_ch
+			&&*/ lhs->buffering_mode == rhs->buffering_mode
+			&& lhs->csi_buffer.mem_reg_size == rhs->csi_buffer.mem_reg_size
+			&& lhs->csi_buffer.nof_mem_regs  == rhs->csi_buffer.nof_mem_regs
+			&& lhs->acquisition_buffer.mem_reg_size == rhs->acquisition_buffer.mem_reg_size
+			&& lhs->acquisition_buffer.nof_mem_regs  == rhs->acquisition_buffer.nof_mem_regs
+			&& lhs->nof_xmem_buffers  == rhs->nof_xmem_buffers
+			) {
+			return INPUT_SYSTEM_ERR_NO_ERROR;
+		}
+		else {
+			*flags |= INPUT_SYSTEM_CFG_FLAG_CONFLICT;
+			return INPUT_SYSTEM_ERR_CONFLICT_ON_RESOURCE;
+		}
+	}
+	// Check the value (individually).
+	// no check for backend_ch
+	// no check for nof_xmem_buffers
+	memory_required = rhs->csi_buffer.mem_reg_size * rhs->csi_buffer.nof_mem_regs;
+	acq_memory_required = rhs->acquisition_buffer.mem_reg_size * rhs->acquisition_buffer.nof_mem_regs;
+	if (rhs->buffering_mode >= N_INPUT_SYSTEM_BUFFERING_MODE
+		||
+	// Check if required memory is available in input buffer (SRAM).
+		(memory_required + acq_memory_required )> config.unallocated_ib_mem_words
+
+		) {
+		*flags |= INPUT_SYSTEM_CFG_FLAG_CONFLICT;
+		return INPUT_SYSTEM_ERR_CONFLICT_ON_RESOURCE;
+	}
+	// Set the value.
+	//lhs[port]->backend_ch 		= rhs.backend_ch;
+	lhs->buffering_mode 	= rhs->buffering_mode;
+	lhs->nof_xmem_buffers = rhs->nof_xmem_buffers;
+
+	lhs->csi_buffer.mem_reg_size = rhs->csi_buffer.mem_reg_size;
+	lhs->csi_buffer.nof_mem_regs  = rhs->csi_buffer.nof_mem_regs;
+	lhs->acquisition_buffer.mem_reg_size = rhs->acquisition_buffer.mem_reg_size;
+	lhs->acquisition_buffer.nof_mem_regs  = rhs->acquisition_buffer.nof_mem_regs;
+    // ALX: NB: Here we just set buffer parameters, but still not allocate it
+	// (no addresses determined). That will be done during commit.
+
+	//  FIXIT:	acq_memory_required is not deducted, since it can be allocated multiple times.
+	config.unallocated_ib_mem_words -= memory_required;
+//assert(config.unallocated_ib_mem_words >=0);
+	*flags |= INPUT_SYSTEM_CFG_FLAG_SET;
+	return INPUT_SYSTEM_ERR_NO_ERROR;
+}
+
+
+// Test flags and set structure.
+static input_system_error_t input_system_multiplexer_cfg(
+	input_system_multiplex_t* const		lhs,
+	const input_system_multiplex_t		rhs,
+	input_system_config_flags_t* const	flags)
+{
+	assert(lhs != NULL);
+	assert(flags != NULL);
+
+	if ((*flags) & INPUT_SYSTEM_CFG_FLAG_BLOCKED) {
+		*flags |= INPUT_SYSTEM_CFG_FLAG_CONFLICT;
+		return INPUT_SYSTEM_ERR_CONFLICT_ON_RESOURCE;
+	}
+
+	if ((*flags) & INPUT_SYSTEM_CFG_FLAG_SET) {
+		// Check for consistency with already set value.
+		if ((*lhs) == (rhs)) {
+			return INPUT_SYSTEM_ERR_NO_ERROR;
+		}
+		else {
+			*flags |= INPUT_SYSTEM_CFG_FLAG_CONFLICT;
+			return INPUT_SYSTEM_ERR_CONFLICT_ON_RESOURCE;
+		}
+	}
+	// Check the value (individually).
+	if (rhs >= N_INPUT_SYSTEM_MULTIPLEX) {
+		*flags |= INPUT_SYSTEM_CFG_FLAG_CONFLICT;
+		return INPUT_SYSTEM_ERR_PARAMETER_NOT_SUPPORTED;
+	}
+	// Set the value.
+	*lhs = rhs;
+
+	*flags |= INPUT_SYSTEM_CFG_FLAG_SET;
+	return INPUT_SYSTEM_ERR_NO_ERROR;
+}
+#endif
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/input_system_local.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/input_system_local.h
new file mode 100644
index 0000000..3e8bd00
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/input_system_local.h
@@ -0,0 +1,533 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __INPUT_SYSTEM_LOCAL_H_INCLUDED__
+#define __INPUT_SYSTEM_LOCAL_H_INCLUDED__
+
+#include <type_support.h>
+
+#include "input_system_global.h"
+
+#include "input_system_defs.h"		/* HIVE_ISYS_GPREG_MULTICAST_A_IDX,... */
+#include "css_receiver_2400_defs.h"	/* _HRT_CSS_RECEIVER_2400_TWO_PIXEL_EN_REG_IDX, _HRT_CSS_RECEIVER_2400_CSI2_FUNC_PROG_REG_IDX,... */
+#if defined(IS_ISP_2400_MAMOIADA_SYSTEM)
+#include "isp_capture_defs.h"
+#elif defined(IS_ISP_2401_MAMOIADA_SYSTEM)
+/* Same name, but keep the distinction,it is a different device */
+#include "isp_capture_defs.h"
+#else
+#error "input_system_local.h: 2400_SYSTEM must be one of {2400, 2401 }"
+#endif
+#include "isp_acquisition_defs.h"
+#include "input_system_ctrl_defs.h"
+
+
+typedef enum {
+	INPUT_SYSTEM_ERR_NO_ERROR = 0,
+	INPUT_SYSTEM_ERR_GENERIC,
+	INPUT_SYSTEM_ERR_CHANNEL_ALREADY_SET,
+	INPUT_SYSTEM_ERR_CONFLICT_ON_RESOURCE,
+	INPUT_SYSTEM_ERR_PARAMETER_NOT_SUPPORTED,
+	N_INPUT_SYSTEM_ERR
+} input_system_error_t;
+
+typedef enum {
+	INPUT_SYSTEM_PORT_A = 0,
+	INPUT_SYSTEM_PORT_B,
+	INPUT_SYSTEM_PORT_C,
+	N_INPUT_SYSTEM_PORTS
+} input_system_csi_port_t;
+
+typedef struct ctrl_unit_cfg_s			ctrl_unit_cfg_t;
+typedef struct input_system_network_cfg_s	input_system_network_cfg_t;
+typedef struct target_cfg2400_s 		target_cfg2400_t;
+typedef struct channel_cfg_s 			channel_cfg_t;
+typedef struct backend_channel_cfg_s 		backend_channel_cfg_t;
+typedef struct input_system_cfg2400_s 		input_system_cfg2400_t;
+typedef struct mipi_port_state_s		mipi_port_state_t;
+typedef struct rx_channel_state_s		rx_channel_state_t;
+typedef struct input_switch_cfg_channel_s 	input_switch_cfg_channel_t;
+typedef struct input_switch_cfg_s 		input_switch_cfg_t;
+
+struct ctrl_unit_cfg_s {
+	ib_buffer_t		buffer_mipi[N_CAPTURE_UNIT_ID];
+	ib_buffer_t		buffer_acquire[N_ACQUISITION_UNIT_ID];
+};
+
+struct input_system_network_cfg_s {
+	input_system_connection_t	multicast_cfg[N_CAPTURE_UNIT_ID];
+	input_system_multiplex_t	mux_cfg;
+	ctrl_unit_cfg_t				ctrl_unit_cfg[N_CTRL_UNIT_ID];
+};
+
+typedef struct {
+// TBD.
+	uint32_t 	dummy_parameter;
+} target_isp_cfg_t;
+
+
+typedef struct {
+// TBD.
+	uint32_t 	dummy_parameter;
+} target_sp_cfg_t;
+
+
+typedef struct {
+// TBD.
+	uint32_t 	dummy_parameter;
+} target_strm2mem_cfg_t;
+
+struct input_switch_cfg_channel_s {
+	uint32_t hsync_data_reg[2];
+	uint32_t vsync_data_reg;
+};
+
+struct target_cfg2400_s {
+	input_switch_cfg_channel_t 		input_switch_channel_cfg;
+	target_isp_cfg_t	target_isp_cfg;
+	target_sp_cfg_t		target_sp_cfg;
+	target_strm2mem_cfg_t	target_strm2mem_cfg;
+};
+
+struct backend_channel_cfg_s {
+	uint32_t	fmt_control_word_1; // Format config.
+	uint32_t	fmt_control_word_2;
+	uint32_t	no_side_band;
+};
+
+typedef union  {
+	csi_cfg_t	csi_cfg;
+	tpg_cfg_t	tpg_cfg;
+	prbs_cfg_t	prbs_cfg;
+	gpfifo_cfg_t	gpfifo_cfg;
+} source_cfg_t;
+
+
+struct input_switch_cfg_s {
+	uint32_t hsync_data_reg[N_RX_CHANNEL_ID * 2];
+	uint32_t vsync_data_reg;
+};
+
+// Configuration of a channel.
+struct channel_cfg_s {
+	uint32_t		ch_id;
+	backend_channel_cfg_t	backend_ch;
+	input_system_source_t	source_type;
+	source_cfg_t		source_cfg;
+	target_cfg2400_t	target_cfg;
+};
+
+
+// Complete configuration for input system.
+struct input_system_cfg2400_s {
+
+	input_system_source_t source_type;				input_system_config_flags_t	source_type_flags;
+	//channel_cfg_t		channel[N_CHANNELS];
+	input_system_config_flags_t	ch_flags[N_CHANNELS];
+	//  This is the place where the buffers' settings are collected, as given.
+	csi_cfg_t			csi_value[N_CSI_PORTS];		input_system_config_flags_t	csi_flags[N_CSI_PORTS];
+
+	// Possible another struct for ib.
+	// This buffers set at the end, based on the all configurations.
+	ib_buffer_t			csi_buffer[N_CSI_PORTS];	input_system_config_flags_t	csi_buffer_flags[N_CSI_PORTS];
+	ib_buffer_t			acquisition_buffer_unique;	input_system_config_flags_t	acquisition_buffer_unique_flags;
+	uint32_t			unallocated_ib_mem_words; // Used for check.DEFAULT = IB_CAPACITY_IN_WORDS.
+	//uint32_t			acq_allocated_ib_mem_words;
+
+	input_system_connection_t		multicast[N_CSI_PORTS];
+	input_system_multiplex_t		multiplexer;   					input_system_config_flags_t		multiplexer_flags;
+
+
+	tpg_cfg_t			tpg_value;			input_system_config_flags_t	tpg_flags;
+	prbs_cfg_t			prbs_value;			input_system_config_flags_t	prbs_flags;
+	gpfifo_cfg_t		gpfifo_value;		input_system_config_flags_t	gpfifo_flags;
+
+
+	input_switch_cfg_t		input_switch_cfg;
+
+
+	target_isp_cfg_t		target_isp      [N_CHANNELS];	input_system_config_flags_t	target_isp_flags      [N_CHANNELS];
+	target_sp_cfg_t			target_sp       [N_CHANNELS];	input_system_config_flags_t	target_sp_flags       [N_CHANNELS];
+	target_strm2mem_cfg_t	target_strm2mem [N_CHANNELS];	input_system_config_flags_t	target_strm2mem_flags [N_CHANNELS];
+
+	input_system_config_flags_t		session_flags;
+
+};
+
+/*
+ * For each MIPI port
+ */
+#define _HRT_CSS_RECEIVER_DEVICE_READY_REG_IDX			_HRT_CSS_RECEIVER_2400_DEVICE_READY_REG_IDX
+#define _HRT_CSS_RECEIVER_IRQ_STATUS_REG_IDX			_HRT_CSS_RECEIVER_2400_IRQ_STATUS_REG_IDX
+#define _HRT_CSS_RECEIVER_IRQ_ENABLE_REG_IDX			_HRT_CSS_RECEIVER_2400_IRQ_ENABLE_REG_IDX
+#define _HRT_CSS_RECEIVER_TIMEOUT_COUNT_REG_IDX		    _HRT_CSS_RECEIVER_2400_CSI2_FUNC_PROG_REG_IDX
+#define _HRT_CSS_RECEIVER_INIT_COUNT_REG_IDX			_HRT_CSS_RECEIVER_2400_INIT_COUNT_REG_IDX
+/* new regs for each MIPI port w.r.t. 2300 */
+#define _HRT_CSS_RECEIVER_RAW16_18_DATAID_REG_IDX       _HRT_CSS_RECEIVER_2400_RAW16_18_DATAID_REG_IDX
+#define _HRT_CSS_RECEIVER_SYNC_COUNT_REG_IDX            _HRT_CSS_RECEIVER_2400_SYNC_COUNT_REG_IDX
+#define _HRT_CSS_RECEIVER_RX_COUNT_REG_IDX              _HRT_CSS_RECEIVER_2400_RX_COUNT_REG_IDX
+
+/* _HRT_CSS_RECEIVER_2400_COMP_FORMAT_REG_IDX is not defined per MIPI port but per channel */
+/* _HRT_CSS_RECEIVER_2400_COMP_PREDICT_REG_IDX is not defined per MIPI port but per channel */
+#define _HRT_CSS_RECEIVER_FS_TO_LS_DELAY_REG_IDX        _HRT_CSS_RECEIVER_2400_FS_TO_LS_DELAY_REG_IDX
+#define _HRT_CSS_RECEIVER_LS_TO_DATA_DELAY_REG_IDX      _HRT_CSS_RECEIVER_2400_LS_TO_DATA_DELAY_REG_IDX
+#define _HRT_CSS_RECEIVER_DATA_TO_LE_DELAY_REG_IDX      _HRT_CSS_RECEIVER_2400_DATA_TO_LE_DELAY_REG_IDX
+#define _HRT_CSS_RECEIVER_LE_TO_FE_DELAY_REG_IDX        _HRT_CSS_RECEIVER_2400_LE_TO_FE_DELAY_REG_IDX
+#define _HRT_CSS_RECEIVER_FE_TO_FS_DELAY_REG_IDX        _HRT_CSS_RECEIVER_2400_FE_TO_FS_DELAY_REG_IDX
+#define _HRT_CSS_RECEIVER_LE_TO_LS_DELAY_REG_IDX        _HRT_CSS_RECEIVER_2400_LE_TO_LS_DELAY_REG_IDX
+#define _HRT_CSS_RECEIVER_TWO_PIXEL_EN_REG_IDX			_HRT_CSS_RECEIVER_2400_TWO_PIXEL_EN_REG_IDX
+#define _HRT_CSS_RECEIVER_BACKEND_RST_REG_IDX           _HRT_CSS_RECEIVER_2400_BACKEND_RST_REG_IDX
+#define _HRT_CSS_RECEIVER_RAW18_REG_IDX                 _HRT_CSS_RECEIVER_2400_RAW18_REG_IDX
+#define _HRT_CSS_RECEIVER_FORCE_RAW8_REG_IDX            _HRT_CSS_RECEIVER_2400_FORCE_RAW8_REG_IDX
+#define _HRT_CSS_RECEIVER_RAW16_REG_IDX                 _HRT_CSS_RECEIVER_2400_RAW16_REG_IDX
+
+/* Previously MIPI port regs, now 2x2 logical channel regs */
+#define _HRT_CSS_RECEIVER_COMP_SCHEME_VC0_REG0_IDX		_HRT_CSS_RECEIVER_2400_COMP_SCHEME_VC0_REG0_IDX
+#define _HRT_CSS_RECEIVER_COMP_SCHEME_VC0_REG1_IDX		_HRT_CSS_RECEIVER_2400_COMP_SCHEME_VC0_REG1_IDX
+#define _HRT_CSS_RECEIVER_COMP_SCHEME_VC1_REG0_IDX		_HRT_CSS_RECEIVER_2400_COMP_SCHEME_VC1_REG0_IDX
+#define _HRT_CSS_RECEIVER_COMP_SCHEME_VC1_REG1_IDX		_HRT_CSS_RECEIVER_2400_COMP_SCHEME_VC1_REG1_IDX
+#define _HRT_CSS_RECEIVER_COMP_SCHEME_VC2_REG0_IDX		_HRT_CSS_RECEIVER_2400_COMP_SCHEME_VC2_REG0_IDX
+#define _HRT_CSS_RECEIVER_COMP_SCHEME_VC2_REG1_IDX		_HRT_CSS_RECEIVER_2400_COMP_SCHEME_VC2_REG1_IDX
+#define _HRT_CSS_RECEIVER_COMP_SCHEME_VC3_REG0_IDX		_HRT_CSS_RECEIVER_2400_COMP_SCHEME_VC3_REG0_IDX
+#define _HRT_CSS_RECEIVER_COMP_SCHEME_VC3_REG1_IDX		_HRT_CSS_RECEIVER_2400_COMP_SCHEME_VC3_REG1_IDX
+
+/* Second backend is at offset 0x0700 w.r.t. the first port at offset 0x0100 */
+#define _HRT_CSS_BE_OFFSET                              448
+#define _HRT_CSS_RECEIVER_BE_GSP_ACC_OVL_REG_IDX        (_HRT_CSS_RECEIVER_2400_BE_GSP_ACC_OVL_REG_IDX + _HRT_CSS_BE_OFFSET)
+#define _HRT_CSS_RECEIVER_BE_SRST_REG_IDX               (_HRT_CSS_RECEIVER_2400_BE_SRST_REG_IDX + _HRT_CSS_BE_OFFSET)
+#define _HRT_CSS_RECEIVER_BE_TWO_PPC_REG_IDX            (_HRT_CSS_RECEIVER_2400_BE_TWO_PPC_REG_IDX + _HRT_CSS_BE_OFFSET)
+#define _HRT_CSS_RECEIVER_BE_COMP_FORMAT_REG0_IDX       (_HRT_CSS_RECEIVER_2400_BE_COMP_FORMAT_REG0_IDX + _HRT_CSS_BE_OFFSET)
+#define _HRT_CSS_RECEIVER_BE_COMP_FORMAT_REG1_IDX       (_HRT_CSS_RECEIVER_2400_BE_COMP_FORMAT_REG1_IDX + _HRT_CSS_BE_OFFSET)
+#define _HRT_CSS_RECEIVER_BE_COMP_FORMAT_REG2_IDX       (_HRT_CSS_RECEIVER_2400_BE_COMP_FORMAT_REG2_IDX + _HRT_CSS_BE_OFFSET)
+#define _HRT_CSS_RECEIVER_BE_COMP_FORMAT_REG3_IDX       (_HRT_CSS_RECEIVER_2400_BE_COMP_FORMAT_REG3_IDX + _HRT_CSS_BE_OFFSET)
+#define _HRT_CSS_RECEIVER_BE_SEL_REG_IDX                (_HRT_CSS_RECEIVER_2400_BE_SEL_REG_IDX + _HRT_CSS_BE_OFFSET)
+#define _HRT_CSS_RECEIVER_BE_RAW16_CONFIG_REG_IDX       (_HRT_CSS_RECEIVER_2400_BE_RAW16_CONFIG_REG_IDX + _HRT_CSS_BE_OFFSET)
+#define _HRT_CSS_RECEIVER_BE_RAW18_CONFIG_REG_IDX       (_HRT_CSS_RECEIVER_2400_BE_RAW18_CONFIG_REG_IDX + _HRT_CSS_BE_OFFSET)
+#define _HRT_CSS_RECEIVER_BE_FORCE_RAW8_REG_IDX         (_HRT_CSS_RECEIVER_2400_BE_FORCE_RAW8_REG_IDX + _HRT_CSS_BE_OFFSET)
+#define _HRT_CSS_RECEIVER_BE_IRQ_STATUS_REG_IDX         (_HRT_CSS_RECEIVER_2400_BE_IRQ_STATUS_REG_IDX + _HRT_CSS_BE_OFFSET)
+#define _HRT_CSS_RECEIVER_BE_IRQ_CLEAR_REG_IDX          (_HRT_CSS_RECEIVER_2400_BE_IRQ_CLEAR_REG_IDX + _HRT_CSS_BE_OFFSET)
+
+
+#define _HRT_CSS_RECEIVER_IRQ_OVERRUN_BIT		_HRT_CSS_RECEIVER_2400_IRQ_OVERRUN_BIT
+#define _HRT_CSS_RECEIVER_IRQ_INIT_TIMEOUT_BIT		_HRT_CSS_RECEIVER_2400_IRQ_RESERVED_BIT
+#define _HRT_CSS_RECEIVER_IRQ_SLEEP_MODE_ENTRY_BIT	_HRT_CSS_RECEIVER_2400_IRQ_SLEEP_MODE_ENTRY_BIT
+#define _HRT_CSS_RECEIVER_IRQ_SLEEP_MODE_EXIT_BIT	_HRT_CSS_RECEIVER_2400_IRQ_SLEEP_MODE_EXIT_BIT
+#define _HRT_CSS_RECEIVER_IRQ_ERR_SOT_HS_BIT		_HRT_CSS_RECEIVER_2400_IRQ_ERR_SOT_HS_BIT
+#define _HRT_CSS_RECEIVER_IRQ_ERR_SOT_SYNC_HS_BIT	_HRT_CSS_RECEIVER_2400_IRQ_ERR_SOT_SYNC_HS_BIT
+#define _HRT_CSS_RECEIVER_IRQ_ERR_CONTROL_BIT		_HRT_CSS_RECEIVER_2400_IRQ_ERR_CONTROL_BIT
+#define _HRT_CSS_RECEIVER_IRQ_ERR_ECC_DOUBLE_BIT	_HRT_CSS_RECEIVER_2400_IRQ_ERR_ECC_DOUBLE_BIT
+#define _HRT_CSS_RECEIVER_IRQ_ERR_ECC_CORRECTED_BIT	_HRT_CSS_RECEIVER_2400_IRQ_ERR_ECC_CORRECTED_BIT
+#define _HRT_CSS_RECEIVER_IRQ_ERR_ECC_NO_CORRECTION_BIT	_HRT_CSS_RECEIVER_2400_IRQ_ERR_ECC_NO_CORRECTION_BIT
+#define _HRT_CSS_RECEIVER_IRQ_ERR_CRC_BIT		_HRT_CSS_RECEIVER_2400_IRQ_ERR_CRC_BIT
+#define _HRT_CSS_RECEIVER_IRQ_ERR_ID_BIT		_HRT_CSS_RECEIVER_2400_IRQ_ERR_ID_BIT
+#define _HRT_CSS_RECEIVER_IRQ_ERR_FRAME_SYNC_BIT	_HRT_CSS_RECEIVER_2400_IRQ_ERR_FRAME_SYNC_BIT
+#define _HRT_CSS_RECEIVER_IRQ_ERR_FRAME_DATA_BIT	_HRT_CSS_RECEIVER_2400_IRQ_ERR_FRAME_DATA_BIT
+#define _HRT_CSS_RECEIVER_IRQ_DATA_TIMEOUT_BIT		_HRT_CSS_RECEIVER_2400_IRQ_DATA_TIMEOUT_BIT
+#define _HRT_CSS_RECEIVER_IRQ_ERR_ESCAPE_BIT		_HRT_CSS_RECEIVER_2400_IRQ_ERR_ESCAPE_BIT
+#define _HRT_CSS_RECEIVER_IRQ_ERR_LINE_SYNC_BIT		_HRT_CSS_RECEIVER_2400_IRQ_ERR_LINE_SYNC_BIT
+
+#define _HRT_CSS_RECEIVER_FUNC_PROG_REG_IDX		_HRT_CSS_RECEIVER_2400_CSI2_FUNC_PROG_REG_IDX
+#define	_HRT_CSS_RECEIVER_DATA_TIMEOUT_IDX		_HRT_CSS_RECEIVER_2400_CSI2_DATA_TIMEOUT_IDX
+#define	_HRT_CSS_RECEIVER_DATA_TIMEOUT_BITS		_HRT_CSS_RECEIVER_2400_CSI2_DATA_TIMEOUT_BITS
+
+typedef struct capture_unit_state_s	capture_unit_state_t;
+typedef struct acquisition_unit_state_s	acquisition_unit_state_t;
+typedef struct ctrl_unit_state_s	ctrl_unit_state_t;
+
+/*
+ * In 2300 ports can be configured independently and stream
+ * formats need to be specified. In 2400, there are only 8
+ * supported configurations but the HW is fused to support
+ * only a single one.
+ *
+ * In 2300 the compressed format types are programmed by the
+ * user. In 2400 all stream formats are encoded on the stream.
+ *
+ * Use the enum to check validity of a user configuration
+ */
+typedef enum {
+	MONO_4L_1L_0L = 0,
+	MONO_3L_1L_0L,
+	MONO_2L_1L_0L,
+	MONO_1L_1L_0L,
+	STEREO_2L_1L_2L,
+	STEREO_3L_1L_1L,
+	STEREO_2L_1L_1L,
+	STEREO_1L_1L_1L,
+	N_RX_MODE
+} rx_mode_t;
+
+typedef enum {
+	MIPI_PREDICTOR_NONE = 0,
+	MIPI_PREDICTOR_TYPE1,
+	MIPI_PREDICTOR_TYPE2,
+	N_MIPI_PREDICTOR_TYPES
+} mipi_predictor_t;
+
+typedef enum {
+	MIPI_COMPRESSOR_NONE = 0,
+	MIPI_COMPRESSOR_10_6_10,
+	MIPI_COMPRESSOR_10_7_10,
+	MIPI_COMPRESSOR_10_8_10,
+	MIPI_COMPRESSOR_12_6_12,
+	MIPI_COMPRESSOR_12_7_12,
+	MIPI_COMPRESSOR_12_8_12,
+	N_MIPI_COMPRESSOR_METHODS
+} mipi_compressor_t;
+
+typedef enum {
+	MIPI_FORMAT_RGB888 = 0,
+	MIPI_FORMAT_RGB555,
+	MIPI_FORMAT_RGB444,
+	MIPI_FORMAT_RGB565,
+	MIPI_FORMAT_RGB666,
+	MIPI_FORMAT_RAW8,		/* 5 */
+	MIPI_FORMAT_RAW10,
+	MIPI_FORMAT_RAW6,
+	MIPI_FORMAT_RAW7,
+	MIPI_FORMAT_RAW12,
+	MIPI_FORMAT_RAW14,		/* 10 */
+	MIPI_FORMAT_YUV420_8,
+	MIPI_FORMAT_YUV420_10,
+	MIPI_FORMAT_YUV422_8,
+	MIPI_FORMAT_YUV422_10,
+	MIPI_FORMAT_CUSTOM0,	/* 15 */
+	MIPI_FORMAT_YUV420_8_LEGACY,
+	MIPI_FORMAT_EMBEDDED,
+	MIPI_FORMAT_CUSTOM1,
+	MIPI_FORMAT_CUSTOM2,
+	MIPI_FORMAT_CUSTOM3,	/* 20 */
+	MIPI_FORMAT_CUSTOM4,
+	MIPI_FORMAT_CUSTOM5,
+	MIPI_FORMAT_CUSTOM6,
+	MIPI_FORMAT_CUSTOM7,
+	MIPI_FORMAT_YUV420_8_SHIFT,	/* 25 */
+	MIPI_FORMAT_YUV420_10_SHIFT,
+	MIPI_FORMAT_RAW16,
+	MIPI_FORMAT_RAW18,
+	N_MIPI_FORMAT,
+} mipi_format_t;
+
+#define MIPI_FORMAT_JPEG		MIPI_FORMAT_CUSTOM0
+#define MIPI_FORMAT_BINARY_8	MIPI_FORMAT_CUSTOM0
+#define N_MIPI_FORMAT_CUSTOM	8
+
+/* The number of stores for compressed format types */
+#define	N_MIPI_COMPRESSOR_CONTEXT	(N_RX_CHANNEL_ID * N_MIPI_FORMAT_CUSTOM)
+
+typedef enum {
+	RX_IRQ_INFO_BUFFER_OVERRUN   = 1UL << _HRT_CSS_RECEIVER_IRQ_OVERRUN_BIT,
+	RX_IRQ_INFO_INIT_TIMEOUT     = 1UL << _HRT_CSS_RECEIVER_IRQ_INIT_TIMEOUT_BIT,
+	RX_IRQ_INFO_ENTER_SLEEP_MODE = 1UL << _HRT_CSS_RECEIVER_IRQ_SLEEP_MODE_ENTRY_BIT,
+	RX_IRQ_INFO_EXIT_SLEEP_MODE  = 1UL << _HRT_CSS_RECEIVER_IRQ_SLEEP_MODE_EXIT_BIT,
+	RX_IRQ_INFO_ECC_CORRECTED    = 1UL << _HRT_CSS_RECEIVER_IRQ_ERR_ECC_CORRECTED_BIT,
+	RX_IRQ_INFO_ERR_SOT          = 1UL << _HRT_CSS_RECEIVER_IRQ_ERR_SOT_HS_BIT,
+	RX_IRQ_INFO_ERR_SOT_SYNC     = 1UL << _HRT_CSS_RECEIVER_IRQ_ERR_SOT_SYNC_HS_BIT,
+	RX_IRQ_INFO_ERR_CONTROL      = 1UL << _HRT_CSS_RECEIVER_IRQ_ERR_CONTROL_BIT,
+	RX_IRQ_INFO_ERR_ECC_DOUBLE   = 1UL << _HRT_CSS_RECEIVER_IRQ_ERR_ECC_DOUBLE_BIT,
+/*	RX_IRQ_INFO_NO_ERR           = 1UL << _HRT_CSS_RECEIVER_IRQ_ERR_ECC_NO_CORRECTION_BIT, */
+	RX_IRQ_INFO_ERR_CRC          = 1UL << _HRT_CSS_RECEIVER_IRQ_ERR_CRC_BIT,
+	RX_IRQ_INFO_ERR_UNKNOWN_ID   = 1UL << _HRT_CSS_RECEIVER_IRQ_ERR_ID_BIT,
+	RX_IRQ_INFO_ERR_FRAME_SYNC   = 1UL << _HRT_CSS_RECEIVER_IRQ_ERR_FRAME_SYNC_BIT,
+	RX_IRQ_INFO_ERR_FRAME_DATA   = 1UL << _HRT_CSS_RECEIVER_IRQ_ERR_FRAME_DATA_BIT,
+	RX_IRQ_INFO_ERR_DATA_TIMEOUT = 1UL << _HRT_CSS_RECEIVER_IRQ_DATA_TIMEOUT_BIT,
+	RX_IRQ_INFO_ERR_UNKNOWN_ESC  = 1UL << _HRT_CSS_RECEIVER_IRQ_ERR_ESCAPE_BIT,
+	RX_IRQ_INFO_ERR_LINE_SYNC    = 1UL << _HRT_CSS_RECEIVER_IRQ_ERR_LINE_SYNC_BIT,
+}  rx_irq_info_t;
+
+typedef struct rx_cfg_s		rx_cfg_t;
+
+/*
+ * Applied per port
+ */
+struct rx_cfg_s {
+	rx_mode_t			mode;	/* The HW config */
+	mipi_port_ID_t		port;	/* The port ID to apply the control on */
+	unsigned int		timeout;
+	unsigned int		initcount;
+	unsigned int		synccount;
+	unsigned int		rxcount;
+	mipi_predictor_t	comp;	/* Just for backward compatibility */
+	bool                is_two_ppc;
+};
+
+/* NOTE: The base has already an offset of 0x0100 */
+static const hrt_address MIPI_PORT_OFFSET[N_MIPI_PORT_ID] = {
+	0x00000000UL,
+	0x00000100UL,
+	0x00000200UL};
+
+static const mipi_lane_cfg_t MIPI_PORT_MAXLANES[N_MIPI_PORT_ID] = {
+	MIPI_4LANE_CFG,
+	MIPI_1LANE_CFG,
+	MIPI_2LANE_CFG};
+
+static const bool MIPI_PORT_ACTIVE[N_RX_MODE][N_MIPI_PORT_ID] = {
+	{true, true, false},
+	{true, true, false},
+	{true, true, false},
+	{true, true, false},
+	{true, true, true},
+	{true, true, true},
+	{true, true, true},
+	{true, true, true}};
+
+static const mipi_lane_cfg_t MIPI_PORT_LANES[N_RX_MODE][N_MIPI_PORT_ID] = {
+	{MIPI_4LANE_CFG, MIPI_1LANE_CFG, MIPI_0LANE_CFG},
+	{MIPI_3LANE_CFG, MIPI_1LANE_CFG, MIPI_0LANE_CFG},
+	{MIPI_2LANE_CFG, MIPI_1LANE_CFG, MIPI_0LANE_CFG},
+	{MIPI_1LANE_CFG, MIPI_1LANE_CFG, MIPI_0LANE_CFG},
+	{MIPI_2LANE_CFG, MIPI_1LANE_CFG, MIPI_2LANE_CFG},
+	{MIPI_3LANE_CFG, MIPI_1LANE_CFG, MIPI_1LANE_CFG},
+	{MIPI_2LANE_CFG, MIPI_1LANE_CFG, MIPI_1LANE_CFG},
+	{MIPI_1LANE_CFG, MIPI_1LANE_CFG, MIPI_1LANE_CFG}};
+
+static const hrt_address SUB_SYSTEM_OFFSET[N_SUB_SYSTEM_ID] = {
+	0x00001000UL,
+	0x00002000UL,
+	0x00003000UL,
+	0x00004000UL,
+	0x00005000UL,
+	0x00009000UL,
+	0x0000A000UL,
+	0x0000B000UL,
+	0x0000C000UL};
+
+struct capture_unit_state_s {
+	int	Packet_Length;
+	int	Received_Length;
+	int	Received_Short_Packets;
+	int	Received_Long_Packets;
+	int	Last_Command;
+	int	Next_Command;
+	int	Last_Acknowledge;
+	int	Next_Acknowledge;
+	int	FSM_State_Info;
+	int	StartMode;
+	int	Start_Addr;
+	int	Mem_Region_Size;
+	int	Num_Mem_Regions;
+/*	int	Init;   write-only registers
+	int	Start;
+	int	Stop;      */
+};
+
+struct acquisition_unit_state_s {
+/*	int	Init;   write-only register */
+	int	Received_Short_Packets;
+	int	Received_Long_Packets;
+	int	Last_Command;
+	int	Next_Command;
+	int	Last_Acknowledge;
+	int	Next_Acknowledge;
+	int	FSM_State_Info;
+	int	Int_Cntr_Info;
+	int	Start_Addr;
+	int	Mem_Region_Size;
+	int	Num_Mem_Regions;
+};
+
+struct ctrl_unit_state_s {
+	int	last_cmd;
+	int	next_cmd;
+	int	last_ack;
+	int	next_ack;
+	int	top_fsm_state;
+	int	captA_fsm_state;
+	int	captB_fsm_state;
+	int	captC_fsm_state;
+	int	acq_fsm_state;
+	int	captA_start_addr;
+	int	captB_start_addr;
+	int	captC_start_addr;
+	int	captA_mem_region_size;
+	int	captB_mem_region_size;
+	int	captC_mem_region_size;
+	int	captA_num_mem_regions;
+	int	captB_num_mem_regions;
+	int	captC_num_mem_regions;
+	int	acq_start_addr;
+	int	acq_mem_region_size;
+	int	acq_num_mem_regions;
+/*	int	ctrl_init;  write only register */
+	int	capt_reserve_one_mem_region;
+};
+
+struct input_system_state_s {
+	int	str_multicastA_sel;
+	int	str_multicastB_sel;
+	int	str_multicastC_sel;
+	int	str_mux_sel;
+	int	str_mon_status;
+	int	str_mon_irq_cond;
+	int	str_mon_irq_en;
+	int	isys_srst;
+	int	isys_slv_reg_srst;
+	int	str_deint_portA_cnt;
+	int	str_deint_portB_cnt;
+	struct capture_unit_state_s		capture_unit[N_CAPTURE_UNIT_ID];
+	struct acquisition_unit_state_s	acquisition_unit[N_ACQUISITION_UNIT_ID];
+	struct ctrl_unit_state_s		ctrl_unit_state[N_CTRL_UNIT_ID];
+};
+
+struct mipi_port_state_s {
+	int	device_ready;
+	int	irq_status;
+	int	irq_enable;
+	uint32_t	timeout_count;
+	uint16_t	init_count;
+	uint16_t	raw16_18;
+	uint32_t	sync_count;		/*4 x uint8_t */
+	uint32_t	rx_count;		/*4 x uint8_t */
+	uint8_t		lane_sync_count[MIPI_4LANE_CFG];
+	uint8_t		lane_rx_count[MIPI_4LANE_CFG];
+};
+
+struct rx_channel_state_s {
+	uint32_t	comp_scheme0;
+	uint32_t	comp_scheme1;
+	mipi_predictor_t		pred[N_MIPI_FORMAT_CUSTOM];
+	mipi_compressor_t		comp[N_MIPI_FORMAT_CUSTOM];
+};
+
+struct receiver_state_s {
+	uint8_t	fs_to_ls_delay;
+	uint8_t	ls_to_data_delay;
+	uint8_t	data_to_le_delay;
+	uint8_t	le_to_fe_delay;
+	uint8_t	fe_to_fs_delay;
+	uint8_t	le_to_fs_delay;
+	bool	is_two_ppc;
+	int	backend_rst;
+	uint16_t	raw18;
+	bool		force_raw8;
+	uint16_t	raw16;
+	struct mipi_port_state_s	mipi_port_state[N_MIPI_PORT_ID];
+	struct rx_channel_state_s	rx_channel_state[N_RX_CHANNEL_ID];
+	int	be_gsp_acc_ovl;
+	int	be_srst;
+	int	be_is_two_ppc;
+	int	be_comp_format0;
+	int	be_comp_format1;
+	int	be_comp_format2;
+	int	be_comp_format3;
+	int	be_sel;
+	int	be_raw16_config;
+	int	be_raw18_config;
+	int	be_force_raw8;
+	int	be_irq_status;
+	int	be_irq_clear;
+};
+
+#endif /* __INPUT_SYSTEM_LOCAL_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/input_system_private.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/input_system_private.h
new file mode 100644
index 0000000..ed1b947
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/input_system_private.h
@@ -0,0 +1,116 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __INPUT_SYSTEM_PRIVATE_H_INCLUDED__
+#define __INPUT_SYSTEM_PRIVATE_H_INCLUDED__
+
+#include "input_system_public.h"
+
+#include "device_access.h"
+
+#include "assert_support.h"
+
+STORAGE_CLASS_INPUT_SYSTEM_C void input_system_reg_store(
+	const input_system_ID_t			ID,
+	const hrt_address			reg,
+	const hrt_data				value)
+{
+assert(ID < N_INPUT_SYSTEM_ID);
+assert(INPUT_SYSTEM_BASE[ID] != (hrt_address)-1);
+	ia_css_device_store_uint32(INPUT_SYSTEM_BASE[ID] + reg*sizeof(hrt_data), value);
+return;
+}
+
+STORAGE_CLASS_INPUT_SYSTEM_C hrt_data input_system_reg_load(
+	const input_system_ID_t			ID,
+	const hrt_address			reg)
+{
+assert(ID < N_INPUT_SYSTEM_ID);
+assert(INPUT_SYSTEM_BASE[ID] != (hrt_address)-1);
+return ia_css_device_load_uint32(INPUT_SYSTEM_BASE[ID] + reg*sizeof(hrt_data));
+}
+
+STORAGE_CLASS_INPUT_SYSTEM_C void receiver_reg_store(
+	const rx_ID_t				ID,
+	const hrt_address			reg,
+	const hrt_data				value)
+{
+assert(ID < N_RX_ID);
+assert(RX_BASE[ID] != (hrt_address)-1);
+	ia_css_device_store_uint32(RX_BASE[ID] + reg*sizeof(hrt_data), value);
+return;
+}
+
+STORAGE_CLASS_INPUT_SYSTEM_C hrt_data receiver_reg_load(
+	const rx_ID_t				ID,
+	const hrt_address			reg)
+{
+assert(ID < N_RX_ID);
+assert(RX_BASE[ID] != (hrt_address)-1);
+return ia_css_device_load_uint32(RX_BASE[ID] + reg*sizeof(hrt_data));
+}
+
+STORAGE_CLASS_INPUT_SYSTEM_C void receiver_port_reg_store(
+	const rx_ID_t				ID,
+	const mipi_port_ID_t			port_ID,
+	const hrt_address			reg,
+	const hrt_data				value)
+{
+assert(ID < N_RX_ID);
+assert(port_ID < N_MIPI_PORT_ID);
+assert(RX_BASE[ID] != (hrt_address)-1);
+assert(MIPI_PORT_OFFSET[port_ID] != (hrt_address)-1);
+	ia_css_device_store_uint32(RX_BASE[ID] + MIPI_PORT_OFFSET[port_ID] + reg*sizeof(hrt_data), value);
+return;
+}
+
+STORAGE_CLASS_INPUT_SYSTEM_C hrt_data receiver_port_reg_load(
+	const rx_ID_t				ID,
+	const mipi_port_ID_t			port_ID,
+	const hrt_address			reg)
+{
+assert(ID < N_RX_ID);
+assert(port_ID < N_MIPI_PORT_ID);
+assert(RX_BASE[ID] != (hrt_address)-1);
+assert(MIPI_PORT_OFFSET[port_ID] != (hrt_address)-1);
+return ia_css_device_load_uint32(RX_BASE[ID] + MIPI_PORT_OFFSET[port_ID] + reg*sizeof(hrt_data));
+}
+
+STORAGE_CLASS_INPUT_SYSTEM_C void input_system_sub_system_reg_store(
+	const input_system_ID_t			ID,
+	const sub_system_ID_t			sub_ID,
+	const hrt_address			reg,
+	const hrt_data				value)
+{
+assert(ID < N_INPUT_SYSTEM_ID);
+assert(sub_ID < N_SUB_SYSTEM_ID);
+assert(INPUT_SYSTEM_BASE[ID] != (hrt_address)-1);
+assert(SUB_SYSTEM_OFFSET[sub_ID] != (hrt_address)-1);
+	ia_css_device_store_uint32(INPUT_SYSTEM_BASE[ID] + SUB_SYSTEM_OFFSET[sub_ID] + reg*sizeof(hrt_data), value);
+return;
+}
+
+STORAGE_CLASS_INPUT_SYSTEM_C hrt_data input_system_sub_system_reg_load(
+	const input_system_ID_t			ID,
+	const sub_system_ID_t			sub_ID,
+	const hrt_address			reg)
+{
+assert(ID < N_INPUT_SYSTEM_ID);
+assert(sub_ID < N_SUB_SYSTEM_ID);
+assert(INPUT_SYSTEM_BASE[ID] != (hrt_address)-1);
+assert(SUB_SYSTEM_OFFSET[sub_ID] != (hrt_address)-1);
+return ia_css_device_load_uint32(INPUT_SYSTEM_BASE[ID] + SUB_SYSTEM_OFFSET[sub_ID] + reg*sizeof(hrt_data));
+}
+
+#endif /* __INPUT_SYSTEM_PRIVATE_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/irq.c b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/irq.c
new file mode 100644
index 0000000..0d4ceb6
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/irq.c
@@ -0,0 +1,455 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#include "assert_support.h"
+#include "irq.h"
+
+#ifndef __INLINE_GP_DEVICE__
+#define __INLINE_GP_DEVICE__
+#endif
+#include "gp_device.h"	/* _REG_GP_IRQ_REQUEST_ADDR */
+
+#include "platform_support.h"			/* hrt_sleep() */
+
+STORAGE_CLASS_INLINE void irq_wait_for_write_complete(
+	const irq_ID_t		ID);
+
+STORAGE_CLASS_INLINE bool any_irq_channel_enabled(
+	const irq_ID_t				ID);
+
+STORAGE_CLASS_INLINE irq_ID_t virq_get_irq_id(
+	const virq_id_t		irq_ID,
+	unsigned int		*channel_ID);
+
+#ifndef __INLINE_IRQ__
+#include "irq_private.h"
+#endif /* __INLINE_IRQ__ */
+
+static unsigned short IRQ_N_CHANNEL[N_IRQ_ID] = {
+	IRQ0_ID_N_CHANNEL,
+	IRQ1_ID_N_CHANNEL,
+	IRQ2_ID_N_CHANNEL,
+	IRQ3_ID_N_CHANNEL};
+
+static unsigned short IRQ_N_ID_OFFSET[N_IRQ_ID + 1] = {
+	IRQ0_ID_OFFSET,
+	IRQ1_ID_OFFSET,
+	IRQ2_ID_OFFSET,
+	IRQ3_ID_OFFSET,
+	IRQ_END_OFFSET};
+
+static virq_id_t IRQ_NESTING_ID[N_IRQ_ID] = {
+	N_virq_id,
+	virq_ifmt,
+	virq_isys,
+	virq_isel};
+
+void irq_clear_all(
+	const irq_ID_t				ID)
+{
+	hrt_data	mask = 0xFFFFFFFF;
+
+	assert(ID < N_IRQ_ID);
+	assert(IRQ_N_CHANNEL[ID] <= HRT_DATA_WIDTH);
+
+	if (IRQ_N_CHANNEL[ID] < HRT_DATA_WIDTH) {
+		mask = ~((~(hrt_data)0)>>IRQ_N_CHANNEL[ID]);
+	}
+
+	irq_reg_store(ID,
+		_HRT_IRQ_CONTROLLER_CLEAR_REG_IDX, mask);
+return;
+}
+
+/*
+ * Do we want the user to be able to set the signalling method ?
+ */
+void irq_enable_channel(
+	const irq_ID_t				ID,
+    const unsigned int			irq_id)
+{
+	unsigned int mask = irq_reg_load(ID,
+		_HRT_IRQ_CONTROLLER_MASK_REG_IDX);
+	unsigned int enable = irq_reg_load(ID,
+		_HRT_IRQ_CONTROLLER_ENABLE_REG_IDX);
+	unsigned int edge_in = irq_reg_load(ID,
+		_HRT_IRQ_CONTROLLER_EDGE_REG_IDX);
+	unsigned int me = 1U << irq_id;
+
+	assert(ID < N_IRQ_ID);
+	assert(irq_id < IRQ_N_CHANNEL[ID]);
+
+	mask |= me;
+	enable |= me;
+	edge_in |= me;	/* rising edge */
+
+/* to avoid mishaps configuration must follow the following order */
+
+/* mask this interrupt */
+	irq_reg_store(ID,
+		_HRT_IRQ_CONTROLLER_MASK_REG_IDX, mask & ~me);
+/* rising edge at input */
+	irq_reg_store(ID,
+		_HRT_IRQ_CONTROLLER_EDGE_REG_IDX, edge_in);
+/* enable interrupt to output */
+	irq_reg_store(ID,
+		_HRT_IRQ_CONTROLLER_ENABLE_REG_IDX, enable);
+/* clear current irq only */
+	irq_reg_store(ID,
+		_HRT_IRQ_CONTROLLER_CLEAR_REG_IDX, me);
+/* unmask interrupt from input */
+	irq_reg_store(ID,
+		_HRT_IRQ_CONTROLLER_MASK_REG_IDX, mask);
+
+	irq_wait_for_write_complete(ID);
+
+return;
+}
+
+void irq_enable_pulse(
+	const irq_ID_t	ID,
+	bool 			pulse)
+{
+	unsigned int edge_out = 0x0;
+
+	if (pulse) {
+		edge_out = 0xffffffff;
+	}
+	/* output is given as edge, not pulse */
+	irq_reg_store(ID,
+		_HRT_IRQ_CONTROLLER_EDGE_NOT_PULSE_REG_IDX, edge_out);
+return;
+}
+
+void irq_disable_channel(
+	const irq_ID_t				ID,
+	const unsigned int			irq_id)
+{
+	unsigned int mask = irq_reg_load(ID,
+		_HRT_IRQ_CONTROLLER_MASK_REG_IDX);
+	unsigned int enable = irq_reg_load(ID,
+		_HRT_IRQ_CONTROLLER_ENABLE_REG_IDX);
+	unsigned int me = 1U << irq_id;
+
+	assert(ID < N_IRQ_ID);
+	assert(irq_id < IRQ_N_CHANNEL[ID]);
+
+	mask &= ~me;
+	enable &= ~me;
+
+/* enable interrupt to output */
+	irq_reg_store(ID,
+		_HRT_IRQ_CONTROLLER_ENABLE_REG_IDX, enable);
+/* unmask interrupt from input */
+	irq_reg_store(ID,
+		_HRT_IRQ_CONTROLLER_MASK_REG_IDX, mask);
+/* clear current irq only */
+	irq_reg_store(ID,
+		_HRT_IRQ_CONTROLLER_CLEAR_REG_IDX, me);
+
+	irq_wait_for_write_complete(ID);
+
+return;
+}
+
+enum hrt_isp_css_irq_status irq_get_channel_id(
+	const irq_ID_t				ID,
+	unsigned int				*irq_id)
+{
+	unsigned int irq_status = irq_reg_load(ID,
+		_HRT_IRQ_CONTROLLER_STATUS_REG_IDX);
+	unsigned int idx;
+	enum hrt_isp_css_irq_status status = hrt_isp_css_irq_status_success;
+
+	assert(ID < N_IRQ_ID);
+	assert(irq_id != NULL);
+
+/* find the first irq bit */
+	for (idx = 0; idx < IRQ_N_CHANNEL[ID]; idx++) {
+		if (irq_status & (1U << idx))
+			break;
+	}
+	if (idx == IRQ_N_CHANNEL[ID])
+		return hrt_isp_css_irq_status_error;
+
+/* now check whether there are more bits set */
+	if (irq_status != (1U << idx))
+		status = hrt_isp_css_irq_status_more_irqs;
+
+	irq_reg_store(ID,
+		_HRT_IRQ_CONTROLLER_CLEAR_REG_IDX, 1U << idx);
+
+	irq_wait_for_write_complete(ID);
+
+	if (irq_id != NULL)
+		*irq_id = (unsigned int)idx;
+
+return status;
+}
+
+static const hrt_address IRQ_REQUEST_ADDR[N_IRQ_SW_CHANNEL_ID] = {
+	_REG_GP_IRQ_REQUEST0_ADDR,
+	_REG_GP_IRQ_REQUEST1_ADDR};
+
+void irq_raise(
+	const irq_ID_t				ID,
+	const irq_sw_channel_id_t	irq_id)
+{
+	hrt_address		addr;
+
+	OP___assert(ID == IRQ0_ID);
+	OP___assert(IRQ_BASE[ID] != (hrt_address)-1);
+	OP___assert(irq_id < N_IRQ_SW_CHANNEL_ID);
+
+	(void)ID;
+
+	addr = IRQ_REQUEST_ADDR[irq_id];
+/* The SW IRQ pins are remapped to offset zero */
+	gp_device_reg_store(GP_DEVICE0_ID,
+		(unsigned int)addr, 1);
+#ifdef HRT_CSIM
+	hrt_sleep();
+#endif
+	gp_device_reg_store(GP_DEVICE0_ID,
+		(unsigned int)addr, 0);
+return;
+}
+
+void irq_controller_get_state(
+	const irq_ID_t				ID,
+	irq_controller_state_t		*state)
+{
+	assert(ID < N_IRQ_ID);
+	assert(state != NULL);
+
+	state->irq_edge = irq_reg_load(ID,
+		_HRT_IRQ_CONTROLLER_EDGE_REG_IDX);
+	state->irq_mask = irq_reg_load(ID,
+		_HRT_IRQ_CONTROLLER_MASK_REG_IDX);
+	state->irq_status = irq_reg_load(ID,
+		_HRT_IRQ_CONTROLLER_STATUS_REG_IDX);
+	state->irq_enable = irq_reg_load(ID,
+		_HRT_IRQ_CONTROLLER_ENABLE_REG_IDX);
+	state->irq_level_not_pulse = irq_reg_load(ID,
+		_HRT_IRQ_CONTROLLER_EDGE_NOT_PULSE_REG_IDX);
+return;
+}
+
+bool any_virq_signal(void)
+{
+	unsigned int irq_status = irq_reg_load(IRQ0_ID,
+		_HRT_IRQ_CONTROLLER_STATUS_REG_IDX);
+
+return (irq_status != 0);
+}
+
+void cnd_virq_enable_channel(
+	const virq_id_t				irq_ID,
+	const bool					en)
+{
+	irq_ID_t		i;
+	unsigned int	channel_ID;
+	irq_ID_t		ID = virq_get_irq_id(irq_ID, &channel_ID);
+	
+	assert(ID < N_IRQ_ID);
+
+	for (i=IRQ1_ID;i<N_IRQ_ID;i++) {
+	/* It is not allowed to enable the pin of a nested IRQ directly */
+		assert(irq_ID != IRQ_NESTING_ID[i]);
+	}
+
+	if (en) {
+		irq_enable_channel(ID, channel_ID);
+		if (IRQ_NESTING_ID[ID] != N_virq_id) {
+/* Single level nesting, otherwise we'd need to recurse */
+			irq_enable_channel(IRQ0_ID, IRQ_NESTING_ID[ID]);
+		}
+	} else {
+		irq_disable_channel(ID, channel_ID);
+		if ((IRQ_NESTING_ID[ID] != N_virq_id) && !any_irq_channel_enabled(ID)) {
+/* Only disable the top if the nested ones are empty */
+			irq_disable_channel(IRQ0_ID, IRQ_NESTING_ID[ID]);
+		}
+	}
+return;
+}
+
+
+void virq_clear_all(void)
+{
+	irq_ID_t	irq_id;
+
+	for (irq_id = (irq_ID_t)0; irq_id < N_IRQ_ID; irq_id++) {
+		irq_clear_all(irq_id);
+	}
+return;
+}
+
+enum hrt_isp_css_irq_status virq_get_channel_signals(
+	virq_info_t					*irq_info)
+{
+	enum hrt_isp_css_irq_status irq_status = hrt_isp_css_irq_status_error;
+	irq_ID_t ID;
+
+	assert(irq_info != NULL);
+
+	for (ID = (irq_ID_t)0 ; ID < N_IRQ_ID; ID++) {
+		if (any_irq_channel_enabled(ID)) {
+			hrt_data	irq_data = irq_reg_load(ID,
+				_HRT_IRQ_CONTROLLER_STATUS_REG_IDX);
+
+			if (irq_data != 0) {
+/* The error condition is an IRQ pulse received with no IRQ status written */
+				irq_status = hrt_isp_css_irq_status_success;
+			}
+
+			irq_info->irq_status_reg[ID] |= irq_data;
+
+			irq_reg_store(ID,
+				_HRT_IRQ_CONTROLLER_CLEAR_REG_IDX, irq_data);
+
+			irq_wait_for_write_complete(ID);
+		}
+	}
+
+return irq_status;
+}
+
+void virq_clear_info(
+	virq_info_t					*irq_info)
+{
+	irq_ID_t ID;
+
+	assert(irq_info != NULL);
+
+	for (ID = (irq_ID_t)0 ; ID < N_IRQ_ID; ID++) {
+			irq_info->irq_status_reg[ID] = 0;
+	}
+return;
+}
+
+enum hrt_isp_css_irq_status virq_get_channel_id(
+	virq_id_t					*irq_id)
+{
+	unsigned int irq_status = irq_reg_load(IRQ0_ID,
+		_HRT_IRQ_CONTROLLER_STATUS_REG_IDX);
+	unsigned int idx;
+	enum hrt_isp_css_irq_status status = hrt_isp_css_irq_status_success;
+	irq_ID_t ID;
+
+	assert(irq_id != NULL);
+
+/* find the first irq bit on device 0 */
+	for (idx = 0; idx < IRQ_N_CHANNEL[IRQ0_ID]; idx++) {
+		if (irq_status & (1U << idx))
+			break;
+	}
+
+	if (idx == IRQ_N_CHANNEL[IRQ0_ID]) {
+		return hrt_isp_css_irq_status_error;
+	}
+
+/* Check whether there are more bits set on device 0 */
+	if (irq_status != (1U << idx)) {
+		status = hrt_isp_css_irq_status_more_irqs;
+	}
+
+/* Check whether we have an IRQ on one of the nested devices */
+	for (ID = N_IRQ_ID-1 ; ID > (irq_ID_t)0; ID--) {
+		if (IRQ_NESTING_ID[ID] == (virq_id_t)idx) {
+			break;
+		}
+	}
+
+/* If we have a nested IRQ, load that state, discard the device 0 state */
+	if (ID != IRQ0_ID) {
+		irq_status = irq_reg_load(ID,
+			_HRT_IRQ_CONTROLLER_STATUS_REG_IDX);
+/* find the first irq bit on device "id" */
+		for (idx = 0; idx < IRQ_N_CHANNEL[ID]; idx++) {
+			if (irq_status & (1U << idx))
+				break;
+		}
+
+		if (idx == IRQ_N_CHANNEL[ID]) {
+			return hrt_isp_css_irq_status_error;
+		}
+
+/* Alternatively check whether there are more bits set on this device */
+		if (irq_status != (1U << idx)) {
+			status = hrt_isp_css_irq_status_more_irqs;
+		} else {
+/* If this device is empty, clear the state on device 0 */
+			irq_reg_store(IRQ0_ID,
+				_HRT_IRQ_CONTROLLER_CLEAR_REG_IDX, 1U << IRQ_NESTING_ID[ID]);
+		}
+	} /* if (ID != IRQ0_ID) */
+
+/* Here we proceed to clear the IRQ on detected device, if no nested IRQ, this is device 0 */
+	irq_reg_store(ID,
+		_HRT_IRQ_CONTROLLER_CLEAR_REG_IDX, 1U << idx);
+
+	irq_wait_for_write_complete(ID);
+
+	idx += IRQ_N_ID_OFFSET[ID];
+	if (irq_id != NULL)
+		*irq_id = (virq_id_t)idx;
+
+return status;
+}
+
+STORAGE_CLASS_INLINE void irq_wait_for_write_complete(
+	const irq_ID_t		ID)
+{
+assert(ID < N_IRQ_ID);
+assert(IRQ_BASE[ID] != (hrt_address)-1);
+	(void)ia_css_device_load_uint32(IRQ_BASE[ID] +
+		_HRT_IRQ_CONTROLLER_ENABLE_REG_IDX*sizeof(hrt_data));
+#ifdef HRT_CSIM
+	hrt_sleep();
+#endif
+return;
+}
+
+STORAGE_CLASS_INLINE bool any_irq_channel_enabled(
+	const irq_ID_t				ID)
+{
+	hrt_data	en_reg;
+
+	assert(ID < N_IRQ_ID);
+
+	en_reg = irq_reg_load(ID,
+		_HRT_IRQ_CONTROLLER_ENABLE_REG_IDX);
+
+return (en_reg != 0);
+}
+
+STORAGE_CLASS_INLINE irq_ID_t virq_get_irq_id(
+	const virq_id_t		irq_ID,
+	unsigned int		*channel_ID)
+{
+	irq_ID_t ID;
+
+	assert(channel_ID != NULL);
+
+	for (ID = (irq_ID_t)0 ; ID < N_IRQ_ID; ID++) {
+		if (irq_ID < IRQ_N_ID_OFFSET[ID + 1]) {
+			break;
+		}
+	}
+
+	*channel_ID = (unsigned int)irq_ID - IRQ_N_ID_OFFSET[ID];
+
+return ID;
+}
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/irq_local.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/irq_local.h
new file mode 100644
index 0000000..f522dfd
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/irq_local.h
@@ -0,0 +1,136 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __IRQ_LOCAL_H_INCLUDED__
+#define __IRQ_LOCAL_H_INCLUDED__
+
+#include "irq_global.h"
+
+#include <irq_controller_defs.h>
+
+/* IRQ0_ID */
+#include "hive_isp_css_defs.h"
+#define HIVE_GP_DEV_IRQ_NUM_IRQS	32
+/* IRQ1_ID */
+#include "input_formatter_subsystem_defs.h"
+#define HIVE_IFMT_IRQ_NUM_IRQS		5
+/* IRQ2_ID */
+#include "input_system_defs.h"
+/* IRQ3_ID */
+#include "input_selector_defs.h"
+
+
+#define	IRQ_ID_OFFSET	32
+#define	IRQ0_ID_OFFSET	0
+#define	IRQ1_ID_OFFSET	IRQ_ID_OFFSET
+#define	IRQ2_ID_OFFSET	(2*IRQ_ID_OFFSET)
+#define	IRQ3_ID_OFFSET	(3*IRQ_ID_OFFSET)
+#define	IRQ_END_OFFSET	(4*IRQ_ID_OFFSET)
+
+#define	IRQ0_ID_N_CHANNEL	HIVE_GP_DEV_IRQ_NUM_IRQS
+#define	IRQ1_ID_N_CHANNEL	HIVE_IFMT_IRQ_NUM_IRQS
+#define	IRQ2_ID_N_CHANNEL	HIVE_ISYS_IRQ_NUM_BITS
+#define	IRQ3_ID_N_CHANNEL	HIVE_ISEL_IRQ_NUM_IRQS
+
+typedef struct virq_info_s					virq_info_t;
+typedef struct irq_controller_state_s		irq_controller_state_t;
+
+
+typedef enum {
+	virq_gpio_pin_0            = IRQ0_ID_OFFSET + HIVE_GP_DEV_IRQ_GPIO_PIN_0_BIT_ID,
+	virq_gpio_pin_1            = IRQ0_ID_OFFSET + HIVE_GP_DEV_IRQ_GPIO_PIN_1_BIT_ID,
+	virq_gpio_pin_2            = IRQ0_ID_OFFSET + HIVE_GP_DEV_IRQ_GPIO_PIN_2_BIT_ID,
+	virq_gpio_pin_3            = IRQ0_ID_OFFSET + HIVE_GP_DEV_IRQ_GPIO_PIN_3_BIT_ID,
+	virq_gpio_pin_4            = IRQ0_ID_OFFSET + HIVE_GP_DEV_IRQ_GPIO_PIN_4_BIT_ID,
+	virq_gpio_pin_5            = IRQ0_ID_OFFSET + HIVE_GP_DEV_IRQ_GPIO_PIN_5_BIT_ID,
+	virq_gpio_pin_6            = IRQ0_ID_OFFSET + HIVE_GP_DEV_IRQ_GPIO_PIN_6_BIT_ID,
+	virq_gpio_pin_7            = IRQ0_ID_OFFSET + HIVE_GP_DEV_IRQ_GPIO_PIN_7_BIT_ID,
+	virq_gpio_pin_8            = IRQ0_ID_OFFSET + HIVE_GP_DEV_IRQ_GPIO_PIN_8_BIT_ID,
+	virq_gpio_pin_9            = IRQ0_ID_OFFSET + HIVE_GP_DEV_IRQ_GPIO_PIN_9_BIT_ID,
+	virq_gpio_pin_10           = IRQ0_ID_OFFSET + HIVE_GP_DEV_IRQ_GPIO_PIN_10_BIT_ID,
+	virq_gpio_pin_11           = IRQ0_ID_OFFSET + HIVE_GP_DEV_IRQ_GPIO_PIN_11_BIT_ID,
+	virq_sp                    = IRQ0_ID_OFFSET + HIVE_GP_DEV_IRQ_SP_BIT_ID,
+	virq_isp                   = IRQ0_ID_OFFSET + HIVE_GP_DEV_IRQ_ISP_BIT_ID,
+	virq_isys                  = IRQ0_ID_OFFSET + HIVE_GP_DEV_IRQ_ISYS_BIT_ID,
+	virq_isel                  = IRQ0_ID_OFFSET + HIVE_GP_DEV_IRQ_ISEL_BIT_ID,
+	virq_ifmt                  = IRQ0_ID_OFFSET + HIVE_GP_DEV_IRQ_IFMT_BIT_ID,
+	virq_sp_stream_mon         = IRQ0_ID_OFFSET + HIVE_GP_DEV_IRQ_SP_STREAM_MON_BIT_ID,
+	virq_isp_stream_mon        = IRQ0_ID_OFFSET + HIVE_GP_DEV_IRQ_ISP_STREAM_MON_BIT_ID,
+	virq_mod_stream_mon        = IRQ0_ID_OFFSET + HIVE_GP_DEV_IRQ_MOD_STREAM_MON_BIT_ID,
+#if defined(IS_ISP_2400_MAMOIADA_SYSTEM)
+	virq_isp_pmem_error        = IRQ0_ID_OFFSET + HIVE_GP_DEV_IRQ_ISP_PMEM_ERROR_BIT_ID,
+#elif defined(IS_ISP_2401_MAMOIADA_SYSTEM)
+	virq_isys_2401             = IRQ0_ID_OFFSET + HIVE_GP_DEV_IRQ_IS2401_BIT_ID,
+#else
+#error "irq_local.h: 2400_SYSTEM must be one of {2400, 2401 }"
+#endif
+	virq_isp_bamem_error       = IRQ0_ID_OFFSET + HIVE_GP_DEV_IRQ_ISP_BAMEM_ERROR_BIT_ID,
+	virq_isp_dmem_error        = IRQ0_ID_OFFSET + HIVE_GP_DEV_IRQ_ISP_DMEM_ERROR_BIT_ID,
+	virq_sp_icache_mem_error   = IRQ0_ID_OFFSET + HIVE_GP_DEV_IRQ_SP_ICACHE_MEM_ERROR_BIT_ID,
+	virq_sp_dmem_error         = IRQ0_ID_OFFSET + HIVE_GP_DEV_IRQ_SP_DMEM_ERROR_BIT_ID,
+	virq_mmu_cache_mem_error   = IRQ0_ID_OFFSET + HIVE_GP_DEV_IRQ_MMU_CACHE_MEM_ERROR_BIT_ID,
+	virq_gp_timer_0            = IRQ0_ID_OFFSET + HIVE_GP_DEV_IRQ_GP_TIMER_0_BIT_ID,
+	virq_gp_timer_1            = IRQ0_ID_OFFSET + HIVE_GP_DEV_IRQ_GP_TIMER_1_BIT_ID,              
+	virq_sw_pin_0              = IRQ0_ID_OFFSET + HIVE_GP_DEV_IRQ_SW_PIN_0_BIT_ID,
+	virq_sw_pin_1              = IRQ0_ID_OFFSET + HIVE_GP_DEV_IRQ_SW_PIN_1_BIT_ID,
+	virq_dma                   = IRQ0_ID_OFFSET + HIVE_GP_DEV_IRQ_DMA_BIT_ID,
+	virq_sp_stream_mon_b       = IRQ0_ID_OFFSET + HIVE_GP_DEV_IRQ_SP_STREAM_MON_B_BIT_ID,
+
+	virq_ifmt0_id              = IRQ1_ID_OFFSET + HIVE_IFMT_IRQ_IFT_PRIM_BIT_ID,
+	virq_ifmt1_id              = IRQ1_ID_OFFSET + HIVE_IFMT_IRQ_IFT_PRIM_B_BIT_ID,
+	virq_ifmt2_id              = IRQ1_ID_OFFSET + HIVE_IFMT_IRQ_IFT_SEC_BIT_ID,
+	virq_ifmt3_id              = IRQ1_ID_OFFSET + HIVE_IFMT_IRQ_MEM_CPY_BIT_ID,
+	virq_ifmt_sideband_changed = IRQ1_ID_OFFSET + HIVE_IFMT_IRQ_SIDEBAND_CHANGED_BIT_ID,
+
+	virq_isys_sof              = IRQ2_ID_OFFSET + HIVE_ISYS_IRQ_CSI_SOF_BIT_ID,
+	virq_isys_eof              = IRQ2_ID_OFFSET + HIVE_ISYS_IRQ_CSI_EOF_BIT_ID,
+	virq_isys_sol              = IRQ2_ID_OFFSET + HIVE_ISYS_IRQ_CSI_SOL_BIT_ID,
+	virq_isys_eol              = IRQ2_ID_OFFSET + HIVE_ISYS_IRQ_CSI_EOL_BIT_ID,
+	virq_isys_csi              = IRQ2_ID_OFFSET + HIVE_ISYS_IRQ_CSI_RECEIVER_BIT_ID,
+	virq_isys_csi_be           = IRQ2_ID_OFFSET + HIVE_ISYS_IRQ_CSI_RECEIVER_BE_BIT_ID,
+	virq_isys_capt0_id_no_sop  = IRQ2_ID_OFFSET + HIVE_ISYS_IRQ_CAP_UNIT_A_NO_SOP,
+	virq_isys_capt0_id_late_sop= IRQ2_ID_OFFSET + HIVE_ISYS_IRQ_CAP_UNIT_A_LATE_SOP,
+	virq_isys_capt1_id_no_sop  = IRQ2_ID_OFFSET + HIVE_ISYS_IRQ_CAP_UNIT_B_NO_SOP,
+	virq_isys_capt1_id_late_sop= IRQ2_ID_OFFSET + HIVE_ISYS_IRQ_CAP_UNIT_B_LATE_SOP,
+	virq_isys_capt2_id_no_sop  = IRQ2_ID_OFFSET + HIVE_ISYS_IRQ_CAP_UNIT_C_NO_SOP,
+	virq_isys_capt2_id_late_sop= IRQ2_ID_OFFSET + HIVE_ISYS_IRQ_CAP_UNIT_C_LATE_SOP,
+	virq_isys_acq_sop_mismatch = IRQ2_ID_OFFSET + HIVE_ISYS_IRQ_ACQ_UNIT_SOP_MISMATCH,
+	virq_isys_ctrl_capt0       = IRQ2_ID_OFFSET + HIVE_ISYS_IRQ_INP_CTRL_CAPA,
+	virq_isys_ctrl_capt1       = IRQ2_ID_OFFSET + HIVE_ISYS_IRQ_INP_CTRL_CAPB,
+	virq_isys_ctrl_capt2       = IRQ2_ID_OFFSET + HIVE_ISYS_IRQ_INP_CTRL_CAPC,
+	virq_isys_cio_to_ahb       = IRQ2_ID_OFFSET + HIVE_ISYS_IRQ_CIO2AHB,
+	virq_isys_dma              = IRQ2_ID_OFFSET + HIVE_ISYS_IRQ_DMA_BIT_ID,
+	virq_isys_fifo_monitor     = IRQ2_ID_OFFSET + HIVE_ISYS_IRQ_STREAM_MON_BIT_ID,
+
+	virq_isel_sof              = IRQ3_ID_OFFSET + HIVE_ISEL_IRQ_SYNC_GEN_SOF_BIT_ID,
+	virq_isel_eof              = IRQ3_ID_OFFSET + HIVE_ISEL_IRQ_SYNC_GEN_EOF_BIT_ID,
+	virq_isel_sol              = IRQ3_ID_OFFSET + HIVE_ISEL_IRQ_SYNC_GEN_SOL_BIT_ID,
+	virq_isel_eol              = IRQ3_ID_OFFSET + HIVE_ISEL_IRQ_SYNC_GEN_EOL_BIT_ID,
+
+	N_virq_id                  = IRQ_END_OFFSET
+} virq_id_t;
+
+struct virq_info_s {
+	hrt_data		irq_status_reg[N_IRQ_ID];
+};
+
+struct irq_controller_state_s {
+	unsigned int	irq_edge;
+	unsigned int	irq_mask;
+	unsigned int	irq_status;
+	unsigned int	irq_enable;
+	unsigned int	irq_level_not_pulse;
+};
+
+#endif /* __IRQ_LOCAL_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/irq_private.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/irq_private.h
new file mode 100644
index 0000000..eb325e8
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/irq_private.h
@@ -0,0 +1,44 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __IRQ_PRIVATE_H_INCLUDED__
+#define __IRQ_PRIVATE_H_INCLUDED__
+
+#include "irq_public.h"
+
+#include "device_access.h"
+
+#include "assert_support.h"
+
+STORAGE_CLASS_IRQ_C void irq_reg_store(
+	const irq_ID_t		ID,
+	const unsigned int	reg,
+	const hrt_data		value)
+{
+assert(ID < N_IRQ_ID);
+assert(IRQ_BASE[ID] != (hrt_address)-1);
+	ia_css_device_store_uint32(IRQ_BASE[ID] + reg*sizeof(hrt_data), value);
+return;
+}
+
+STORAGE_CLASS_IRQ_C hrt_data irq_reg_load(
+	const irq_ID_t		ID,
+	const unsigned int	reg)
+{
+assert(ID < N_IRQ_ID);
+assert(IRQ_BASE[ID] != (hrt_address)-1);
+return ia_css_device_load_uint32(IRQ_BASE[ID] + reg*sizeof(hrt_data));
+}
+
+#endif /* __IRQ_PRIVATE_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/isp.c b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/isp.c
new file mode 100644
index 0000000..211c760
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/isp.c
@@ -0,0 +1,148 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#include <system_global.h>
+#include "isp.h"
+
+#ifndef __INLINE_ISP__
+#include "isp_private.h"
+#endif /* __INLINE_ISP__ */
+
+#include "assert_support.h"
+#include "platform_support.h"			/* hrt_sleep() */
+
+void cnd_isp_irq_enable(
+	const isp_ID_t		ID,
+	const bool		cnd)
+{
+	if (cnd) {
+		isp_ctrl_setbit(ID, ISP_IRQ_READY_REG, ISP_IRQ_READY_BIT);
+/* Enabling the IRQ immediately triggers an interrupt, clear it */
+		isp_ctrl_setbit(ID, ISP_IRQ_CLEAR_REG, ISP_IRQ_CLEAR_BIT);
+	} else {
+		isp_ctrl_clearbit(ID, ISP_IRQ_READY_REG,
+			ISP_IRQ_READY_BIT);
+	}
+return;
+}
+
+void isp_get_state(
+	const isp_ID_t		ID,
+	isp_state_t			*state,
+	isp_stall_t			*stall)
+{
+	hrt_data sc = isp_ctrl_load(ID, ISP_SC_REG);
+
+	assert(state != NULL);
+	assert(stall != NULL);
+
+#if defined(_hrt_sysmem_ident_address)
+	/* Patch to avoid compiler unused symbol warning in C_RUN build */
+	(void)__hrt_sysmem_ident_address;
+	(void)_hrt_sysmem_map_var;
+#endif
+
+	state->pc = isp_ctrl_load(ID, ISP_PC_REG);
+	state->status_register = sc;
+	state->is_broken = isp_ctrl_getbit(ID, ISP_SC_REG, ISP_BROKEN_BIT);
+	state->is_idle = isp_ctrl_getbit(ID, ISP_SC_REG, ISP_IDLE_BIT);
+	state->is_sleeping = isp_ctrl_getbit(ID, ISP_SC_REG, ISP_SLEEPING_BIT);
+	state->is_stalling = isp_ctrl_getbit(ID, ISP_SC_REG, ISP_STALLING_BIT);
+	stall->stat_ctrl =
+		!isp_ctrl_getbit(ID, ISP_CTRL_SINK_REG, ISP_CTRL_SINK_BIT);
+	stall->pmem =
+		!isp_ctrl_getbit(ID, ISP_PMEM_SINK_REG, ISP_PMEM_SINK_BIT);
+	stall->dmem =
+		!isp_ctrl_getbit(ID, ISP_DMEM_SINK_REG, ISP_DMEM_SINK_BIT);
+	stall->vmem =
+		!isp_ctrl_getbit(ID, ISP_VMEM_SINK_REG, ISP_VMEM_SINK_BIT);
+	stall->fifo0 =
+		!isp_ctrl_getbit(ID, ISP_FIFO0_SINK_REG, ISP_FIFO0_SINK_BIT);
+	stall->fifo1 =
+		!isp_ctrl_getbit(ID, ISP_FIFO1_SINK_REG, ISP_FIFO1_SINK_BIT);
+	stall->fifo2 =
+		!isp_ctrl_getbit(ID, ISP_FIFO2_SINK_REG, ISP_FIFO2_SINK_BIT);
+	stall->fifo3 =
+		!isp_ctrl_getbit(ID, ISP_FIFO3_SINK_REG, ISP_FIFO3_SINK_BIT);
+	stall->fifo4 =
+		!isp_ctrl_getbit(ID, ISP_FIFO4_SINK_REG, ISP_FIFO4_SINK_BIT);
+	stall->fifo5 =
+		!isp_ctrl_getbit(ID, ISP_FIFO5_SINK_REG, ISP_FIFO5_SINK_BIT);
+	stall->fifo6 =
+		!isp_ctrl_getbit(ID, ISP_FIFO6_SINK_REG, ISP_FIFO6_SINK_BIT);
+	stall->vamem1 =
+		!isp_ctrl_getbit(ID, ISP_VAMEM1_SINK_REG, ISP_VAMEM1_SINK_BIT);
+	stall->vamem2 =
+		!isp_ctrl_getbit(ID, ISP_VAMEM2_SINK_REG, ISP_VAMEM2_SINK_BIT);
+	stall->vamem3 =
+		!isp_ctrl_getbit(ID, ISP_VAMEM3_SINK_REG, ISP_VAMEM3_SINK_BIT);
+	stall->hmem =
+		!isp_ctrl_getbit(ID, ISP_HMEM_SINK_REG, ISP_HMEM_SINK_BIT);
+/*
+	stall->icache_master =
+		!isp_ctrl_getbit(ID, ISP_ICACHE_MT_SINK_REG,
+			ISP_ICACHE_MT_SINK_BIT);
+ */
+return;
+}
+
+/* ISP functions to control the ISP state from the host, even in crun. */
+#ifdef C_RUN
+volatile uint32_t isp_sleeping[N_ISP_ID] = { 0 }; /* Sleeping state per ISP */
+volatile uint32_t isp_ready   [N_ISP_ID] = { 1 }; /* Ready state per ISP */
+#endif
+
+/* Inspect readiness of an ISP indexed by ID */
+unsigned isp_is_ready(isp_ID_t ID)
+{
+	assert (ID < N_ISP_ID);
+#ifdef C_RUN
+	return isp_ready[ID];
+#else
+	return isp_ctrl_getbit(ID, ISP_SC_REG, ISP_IDLE_BIT);
+#endif
+}
+
+/* Inspect sleeping of an ISP indexed by ID */
+unsigned isp_is_sleeping(isp_ID_t ID)
+{
+	assert (ID < N_ISP_ID);
+#ifdef C_RUN
+	return isp_sleeping[ID];
+#else
+	return isp_ctrl_getbit(ID, ISP_SC_REG, ISP_SLEEPING_BIT);
+#endif
+}
+
+/* To be called by the host immediately before starting ISP ID. */
+void isp_start(isp_ID_t ID)
+{
+	assert (ID < N_ISP_ID);
+#ifdef C_RUN
+	isp_ready[ID] = 0;
+#endif
+}
+
+/* Wake up ISP ID. */
+void isp_wake(isp_ID_t ID)
+{
+	assert (ID < N_ISP_ID);
+#ifdef C_RUN
+	isp_sleeping[ID] = 0;
+#else
+	isp_ctrl_setbit(ID, ISP_SC_REG, ISP_START_BIT);
+	hrt_sleep();
+#endif
+}
+
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/isp_local.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/isp_local.h
new file mode 100644
index 0000000..5dcc52d
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/isp_local.h
@@ -0,0 +1,57 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __ISP_LOCAL_H_INCLUDED__
+#define __ISP_LOCAL_H_INCLUDED__
+
+#include <stdbool.h>
+
+#include "isp_global.h"
+
+#include <isp2400_support.h>
+
+#define HIVE_ISP_VMEM_MASK	((1U<<ISP_VMEM_ELEMBITS)-1)
+
+typedef struct isp_state_s		isp_state_t;
+typedef struct isp_stall_s		isp_stall_t;
+
+struct isp_state_s {
+	int	pc;
+	int	status_register;
+	bool	is_broken;
+	bool	is_idle;
+	bool	is_sleeping;
+	bool	is_stalling;
+};
+
+struct isp_stall_s {
+	bool	fifo0;
+	bool	fifo1;
+	bool	fifo2;
+	bool	fifo3;
+	bool	fifo4;
+	bool	fifo5;
+	bool	fifo6;
+	bool	stat_ctrl;
+	bool	dmem;
+	bool	vmem;
+	bool	vamem1;
+	bool	vamem2;
+	bool	vamem3;
+	bool	hmem;
+	bool	pmem;
+	bool	icache_master;
+};
+
+#endif /* __ISP_LOCAL_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/isp_private.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/isp_private.h
new file mode 100644
index 0000000..b33f94a
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/isp_private.h
@@ -0,0 +1,169 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __ISP_PRIVATE_H_INCLUDED__
+#define __ISP_PRIVATE_H_INCLUDED__
+
+#ifdef HRT_MEMORY_ACCESS
+#include <hrt/api.h>
+#endif
+
+#include "isp_public.h"
+
+#ifdef C_RUN
+#include <string.h>		/* memcpy() */
+#endif
+
+#include "device_access.h"
+
+#include "assert_support.h"
+#include "type_support.h"
+
+STORAGE_CLASS_ISP_C void isp_ctrl_store(
+	const isp_ID_t		ID,
+	const unsigned int	reg,
+	const hrt_data		value)
+{
+	assert(ID < N_ISP_ID);
+	assert(ISP_CTRL_BASE[ID] != (hrt_address)-1);
+#if !defined(HRT_MEMORY_ACCESS)
+	ia_css_device_store_uint32(ISP_CTRL_BASE[ID] + reg*sizeof(hrt_data), value);
+#else
+	hrt_master_port_store_32(ISP_CTRL_BASE[ID] + reg*sizeof(hrt_data), value);
+#endif
+	return;
+}
+
+STORAGE_CLASS_ISP_C hrt_data isp_ctrl_load(
+	const isp_ID_t		ID,
+	const unsigned int	reg)
+{
+	assert(ID < N_ISP_ID);
+	assert(ISP_CTRL_BASE[ID] != (hrt_address)-1);
+#if !defined(HRT_MEMORY_ACCESS)
+	return ia_css_device_load_uint32(ISP_CTRL_BASE[ID] + reg*sizeof(hrt_data));
+#else
+	return hrt_master_port_uload_32(ISP_CTRL_BASE[ID] + reg*sizeof(hrt_data));
+#endif
+}
+
+STORAGE_CLASS_ISP_C bool isp_ctrl_getbit(
+	const isp_ID_t		ID,
+	const unsigned int	reg,
+	const unsigned int	bit)
+{
+	hrt_data val = isp_ctrl_load(ID, reg);
+	return (val & (1UL << bit)) != 0;
+}
+
+STORAGE_CLASS_ISP_C void isp_ctrl_setbit(
+	const isp_ID_t		ID,
+	const unsigned int	reg,
+	const unsigned int	bit)
+{
+	hrt_data	data = isp_ctrl_load(ID, reg);
+	isp_ctrl_store(ID, reg, (data | (1UL << bit)));
+	return;
+}
+
+STORAGE_CLASS_ISP_C void isp_ctrl_clearbit(
+	const isp_ID_t		ID,
+	const unsigned int	reg,
+	const unsigned int	bit)
+{
+	hrt_data	data = isp_ctrl_load(ID, reg);
+	isp_ctrl_store(ID, reg, (data & ~(1UL << bit)));
+	return;
+}
+
+STORAGE_CLASS_ISP_C void isp_dmem_store(
+	const isp_ID_t		ID,
+	unsigned int		addr,
+	const void		*data,
+	const size_t		size)
+{
+	assert(ID < N_ISP_ID);
+	assert(ISP_DMEM_BASE[ID] != (hrt_address)-1);
+#ifdef C_RUN
+	memcpy((void *)addr, data, size);
+#elif !defined(HRT_MEMORY_ACCESS)
+	ia_css_device_store(ISP_DMEM_BASE[ID] + addr, data, size);
+#else
+	hrt_master_port_store(ISP_DMEM_BASE[ID] + addr, data, size);
+#endif
+	return;
+}
+
+STORAGE_CLASS_ISP_C void isp_dmem_load(
+	const isp_ID_t		ID,
+	const unsigned int	addr,
+	void			*data,
+	const size_t		size)
+{
+	assert(ID < N_ISP_ID);
+	assert(ISP_DMEM_BASE[ID] != (hrt_address)-1);
+#ifdef C_RUN
+	memcpy(data, (void *)addr, size);
+#elif !defined(HRT_MEMORY_ACCESS)
+	ia_css_device_load(ISP_DMEM_BASE[ID] + addr, data, size);
+#else
+	hrt_master_port_load(ISP_DMEM_BASE[ID] + addr, data, size);
+#endif
+	return;
+}
+
+STORAGE_CLASS_ISP_C void isp_dmem_store_uint32(
+	const isp_ID_t		ID,
+	unsigned int		addr,
+	const uint32_t		data)
+{
+	assert(ID < N_ISP_ID);
+	assert(ISP_DMEM_BASE[ID] != (hrt_address)-1);
+	(void)ID;
+#ifdef C_RUN
+	*(uint32_t *)addr = data;
+#elif !defined(HRT_MEMORY_ACCESS)
+	ia_css_device_store_uint32(ISP_DMEM_BASE[ID] + addr, data);
+#else
+	hrt_master_port_store_32(ISP_DMEM_BASE[ID] + addr, data);
+#endif
+	return;
+}
+
+STORAGE_CLASS_ISP_C uint32_t isp_dmem_load_uint32(
+	const isp_ID_t		ID,
+	const unsigned int	addr)
+{
+	assert(ID < N_ISP_ID);
+	assert(ISP_DMEM_BASE[ID] != (hrt_address)-1);
+	(void)ID;
+#ifdef C_RUN
+	return *(uint32_t *)addr;
+#elif !defined(HRT_MEMORY_ACCESS)
+	return ia_css_device_load_uint32(ISP_DMEM_BASE[ID] + addr);
+#else
+	return hrt_master_port_uload_32(ISP_DMEM_BASE[ID] + addr);
+#endif
+}
+
+STORAGE_CLASS_ISP_C uint32_t isp_2w_cat_1w(
+	const uint16_t		x0,
+	const uint16_t		x1)
+{
+	uint32_t out = ((uint32_t)(x1 & HIVE_ISP_VMEM_MASK) << ISP_VMEM_ELEMBITS)
+		| (x0 & HIVE_ISP_VMEM_MASK);
+	return out;
+}
+
+#endif /* __ISP_PRIVATE_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/mmu.c b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/mmu.c
new file mode 100644
index 0000000..b75d0f8
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/mmu.c
@@ -0,0 +1,50 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+/* The name "mmu.h is already taken" */
+#include "mmu_device.h"
+
+#ifndef __INLINE_MMU__
+#include "mmu_private.h"
+#endif /* __INLINE_MMU__ */
+
+void mmu_set_page_table_base_index(
+	const mmu_ID_t		ID,
+	const hrt_data		base_index)
+{
+	mmu_reg_store(ID, _HRT_MMU_PAGE_TABLE_BASE_ADDRESS_REG_IDX, base_index);
+return;
+}
+
+hrt_data mmu_get_page_table_base_index(
+	const mmu_ID_t		ID)
+{
+return mmu_reg_load(ID, _HRT_MMU_PAGE_TABLE_BASE_ADDRESS_REG_IDX);
+}
+
+void mmu_invalidate_cache(
+	const mmu_ID_t		ID)
+{
+	mmu_reg_store(ID, _HRT_MMU_INVALIDATE_TLB_REG_IDX, 1);
+return;
+}
+
+void mmu_invalidate_cache_all(void)
+{
+	mmu_ID_t	mmu_id;
+	for (mmu_id = (mmu_ID_t)0;mmu_id < N_MMU_ID; mmu_id++) {
+		mmu_invalidate_cache(mmu_id);
+	}
+}
+
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/mmu_local.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/mmu_local.h
new file mode 100644
index 0000000..7c3ad15
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/mmu_local.h
@@ -0,0 +1,20 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __MMU_LOCAL_H_INCLUDED__
+#define __MMU_LOCAL_H_INCLUDED__
+
+#include "mmu_global.h"
+
+#endif /* __MMU_LOCAL_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/mmu_private.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/mmu_private.h
new file mode 100644
index 0000000..392b6cc
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/mmu_private.h
@@ -0,0 +1,44 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __MMU_PRIVATE_H_INCLUDED__
+#define __MMU_PRIVATE_H_INCLUDED__
+
+#include "mmu_public.h"
+
+#include "device_access.h"
+
+#include "assert_support.h"
+
+STORAGE_CLASS_MMU_H void mmu_reg_store(
+	const mmu_ID_t		ID,
+	const unsigned int	reg,
+	const hrt_data		value)
+{
+assert(ID < N_MMU_ID);
+assert(MMU_BASE[ID] != (hrt_address)-1);
+	ia_css_device_store_uint32(MMU_BASE[ID] + reg*sizeof(hrt_data), value);
+return;
+}
+
+STORAGE_CLASS_MMU_H hrt_data mmu_reg_load(
+	const mmu_ID_t		ID,
+	const unsigned int	reg)
+{
+assert(ID < N_MMU_ID);
+assert(MMU_BASE[ID] != (hrt_address)-1);
+return ia_css_device_load_uint32(MMU_BASE[ID] + reg*sizeof(hrt_data));
+}
+
+#endif /* __MMU_PRIVATE_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/sp.c b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/sp.c
new file mode 100644
index 0000000..db694d3
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/sp.c
@@ -0,0 +1,81 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#include "sp.h"
+
+#ifndef __INLINE_SP__
+#include "sp_private.h"
+#endif /* __INLINE_SP__ */
+
+#include "assert_support.h"
+
+void cnd_sp_irq_enable(
+	const sp_ID_t		ID,
+	const bool		cnd)
+{
+	if (cnd) {
+		sp_ctrl_setbit(ID, SP_IRQ_READY_REG, SP_IRQ_READY_BIT);
+/* Enabling the IRQ immediately triggers an interrupt, clear it */
+		sp_ctrl_setbit(ID, SP_IRQ_CLEAR_REG, SP_IRQ_CLEAR_BIT);
+	} else {
+		sp_ctrl_clearbit(ID, SP_IRQ_READY_REG, SP_IRQ_READY_BIT);
+	}
+}
+
+void sp_get_state(
+	const sp_ID_t			ID,
+	sp_state_t				*state,
+	sp_stall_t				*stall)
+{
+	hrt_data sc = sp_ctrl_load(ID, SP_SC_REG);
+
+	assert(state != NULL);
+	assert(stall != NULL);
+
+	state->pc = sp_ctrl_load(ID, SP_PC_REG);
+	state->status_register = sc;
+	state->is_broken   = (sc & (1U << SP_BROKEN_BIT)) != 0;
+	state->is_idle     = (sc & (1U << SP_IDLE_BIT)) != 0;
+	state->is_sleeping = (sc & (1U << SP_SLEEPING_BIT)) != 0;
+	state->is_stalling = (sc & (1U << SP_STALLING_BIT)) != 0;
+	stall->fifo0 =
+		!sp_ctrl_getbit(ID, SP_FIFO0_SINK_REG, SP_FIFO0_SINK_BIT);
+	stall->fifo1 =
+		!sp_ctrl_getbit(ID, SP_FIFO1_SINK_REG, SP_FIFO1_SINK_BIT);
+	stall->fifo2 =
+		!sp_ctrl_getbit(ID, SP_FIFO2_SINK_REG, SP_FIFO2_SINK_BIT);
+	stall->fifo3 =
+		!sp_ctrl_getbit(ID, SP_FIFO3_SINK_REG, SP_FIFO3_SINK_BIT);
+	stall->fifo4 =
+		!sp_ctrl_getbit(ID, SP_FIFO4_SINK_REG, SP_FIFO4_SINK_BIT);
+	stall->fifo5 =
+		!sp_ctrl_getbit(ID, SP_FIFO5_SINK_REG, SP_FIFO5_SINK_BIT);
+	stall->fifo6 =
+		!sp_ctrl_getbit(ID, SP_FIFO6_SINK_REG, SP_FIFO6_SINK_BIT);
+	stall->fifo7 =
+		!sp_ctrl_getbit(ID, SP_FIFO7_SINK_REG, SP_FIFO7_SINK_BIT);
+	stall->fifo8 =
+		!sp_ctrl_getbit(ID, SP_FIFO8_SINK_REG, SP_FIFO8_SINK_BIT);
+	stall->fifo9 =
+		!sp_ctrl_getbit(ID, SP_FIFO9_SINK_REG, SP_FIFO9_SINK_BIT);
+	stall->fifoa =
+		!sp_ctrl_getbit(ID, SP_FIFOA_SINK_REG, SP_FIFOA_SINK_BIT);
+	stall->dmem =
+		!sp_ctrl_getbit(ID, SP_DMEM_SINK_REG, SP_DMEM_SINK_BIT);
+	stall->control_master =
+		!sp_ctrl_getbit(ID, SP_CTRL_MT_SINK_REG, SP_CTRL_MT_SINK_BIT);
+	stall->icache_master =
+		!sp_ctrl_getbit(ID, SP_ICACHE_MT_SINK_REG,
+			SP_ICACHE_MT_SINK_BIT);
+}
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/sp_local.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/sp_local.h
new file mode 100644
index 0000000..59d85eb
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/sp_local.h
@@ -0,0 +1,124 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __SP_LOCAL_H_INCLUDED__
+#define __SP_LOCAL_H_INCLUDED__
+
+#include <type_support.h>
+#include "sp_global.h"
+
+struct sp_state_s {
+	int		pc;
+	int		status_register;
+	bool	is_broken;
+	bool	is_idle;
+	bool	is_sleeping;
+	bool	is_stalling;
+};
+
+struct sp_stall_s {
+	bool	fifo0;
+	bool	fifo1;
+	bool	fifo2;
+	bool	fifo3;
+	bool	fifo4;
+	bool	fifo5;
+	bool	fifo6;
+	bool	fifo7;
+	bool	fifo8;
+	bool	fifo9;
+	bool	fifoa;
+	bool	dmem;
+	bool	control_master;
+	bool	icache_master;
+};
+
+#ifdef C_RUN
+#include "hive_isp_css_sp_hrt.h"
+#define sp_address_of(var)	_hrt_cell_get_crun_indexed_symbol(SP, var)
+#ifdef C_RUN_DYNAMIC_LINK_PROGRAMS
+#ifndef DUMMY_HRT_SYSMEM_FUNCTIONS
+#define DUMMY_HRT_SYSMEM_FUNCTIONS
+/* These two inline functions prevent gcc from generating compiler warnings
+ * about unused static functions. */
+static inline void *
+dummy__hrt_sysmem_ident_address(hive_device_id mem, const char *sym)
+{
+	return __hrt_sysmem_ident_address(mem, sym);
+}
+
+static inline void
+dummy_hrt_sysmem_map_var(hive_mem_id mem, const char *ident, volatile void *native_address, unsigned int size)
+{
+	_hrt_sysmem_map_var(mem, ident, native_address, size);
+}
+#endif /* DUMMY_HRT_SYSMEM_FUNCTIONS */
+#endif /* C_RUN */
+#else
+#define sp_address_of(var)	(HIVE_ADDR_ ## var)
+#endif
+
+/*
+ * deprecated
+ */
+#define store_sp_int(var, value) \
+	sp_dmem_store_uint32(SP0_ID, (unsigned)sp_address_of(var), \
+		(uint32_t)(value))
+
+#define store_sp_ptr(var, value) \
+	sp_dmem_store_uint32(SP0_ID, (unsigned)sp_address_of(var), \
+		(uint32_t)(value))
+
+#define load_sp_uint(var) \
+	sp_dmem_load_uint32(SP0_ID, (unsigned)sp_address_of(var))
+
+#define load_sp_array_uint8(array_name, index) \
+	sp_dmem_load_uint8(SP0_ID, (unsigned)sp_address_of(array_name) + \
+		(index)*sizeof(uint8_t))
+
+#define load_sp_array_uint16(array_name, index) \
+	sp_dmem_load_uint16(SP0_ID, (unsigned)sp_address_of(array_name) + \
+		(index)*sizeof(uint16_t))
+
+#define load_sp_array_uint(array_name, index) \
+	sp_dmem_load_uint32(SP0_ID, (unsigned)sp_address_of(array_name) + \
+		(index)*sizeof(uint32_t))
+
+#define store_sp_var(var, data, bytes) \
+	sp_dmem_store(SP0_ID, (unsigned)sp_address_of(var), data, bytes)
+
+#define store_sp_array_uint8(array_name, index, value) \
+	sp_dmem_store_uint8(SP0_ID, (unsigned)sp_address_of(array_name) + \
+		(index)*sizeof(uint8_t), value)
+
+#define store_sp_array_uint16(array_name, index, value) \
+	sp_dmem_store_uint16(SP0_ID, (unsigned)sp_address_of(array_name) + \
+		(index)*sizeof(uint16_t), value)
+
+#define store_sp_array_uint(array_name, index, value) \
+	sp_dmem_store_uint32(SP0_ID, (unsigned)sp_address_of(array_name) + \
+		(index)*sizeof(uint32_t), value)
+
+#define store_sp_var_with_offset(var, offset, data, bytes) \
+	sp_dmem_store(SP0_ID, (unsigned)sp_address_of(var) + \
+		offset, data, bytes)
+
+#define load_sp_var(var, data, bytes) \
+	sp_dmem_load(SP0_ID, (unsigned)sp_address_of(var), data, bytes)
+
+#define load_sp_var_with_offset(var, offset, data, bytes) \
+	sp_dmem_load(SP0_ID, (unsigned)sp_address_of(var) + offset, \
+		data, bytes)
+
+#endif /* __SP_LOCAL_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/sp_private.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/sp_private.h
new file mode 100644
index 0000000..3ee9ec2
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/sp_private.h
@@ -0,0 +1,198 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __SP_PRIVATE_H_INCLUDED__
+#define __SP_PRIVATE_H_INCLUDED__
+
+#include "sp_public.h"
+
+#include "device_access.h"
+#ifdef C_RUN
+#include <string.h>	/* memcpy() */
+#endif
+
+#include "assert_support.h"
+
+STORAGE_CLASS_SP_C void sp_ctrl_store(
+	const sp_ID_t		ID,
+	const hrt_address	reg,
+	const hrt_data		value)
+{
+assert(ID < N_SP_ID);
+assert(SP_CTRL_BASE[ID] != (hrt_address)-1);
+	ia_css_device_store_uint32(SP_CTRL_BASE[ID] + reg*sizeof(hrt_data), value);
+return;
+}
+
+STORAGE_CLASS_SP_C hrt_data sp_ctrl_load(
+	const sp_ID_t		ID,
+	const hrt_address	reg)
+{
+assert(ID < N_SP_ID);
+assert(SP_CTRL_BASE[ID] != (hrt_address)-1);
+return ia_css_device_load_uint32(SP_CTRL_BASE[ID] + reg*sizeof(hrt_data));
+}
+
+STORAGE_CLASS_SP_C bool sp_ctrl_getbit(
+	const sp_ID_t		ID,
+	const hrt_address	reg,
+	const unsigned int	bit)
+{
+	hrt_data val = sp_ctrl_load(ID, reg);
+return (val & (1UL << bit)) != 0;
+}
+
+STORAGE_CLASS_SP_C void sp_ctrl_setbit(
+	const sp_ID_t		ID,
+	const hrt_address	reg,
+	const unsigned int	bit)
+{
+	hrt_data	data = sp_ctrl_load(ID, reg);
+	sp_ctrl_store(ID, reg, (data | (1UL << bit)));
+return;
+}
+
+STORAGE_CLASS_SP_C void sp_ctrl_clearbit(
+	const sp_ID_t		ID,
+	const hrt_address	reg,
+	const unsigned int	bit)
+{
+	hrt_data	data = sp_ctrl_load(ID, reg);
+	sp_ctrl_store(ID, reg, (data & ~(1UL << bit)));
+return;
+}
+
+STORAGE_CLASS_SP_C void sp_dmem_store(
+	const sp_ID_t		ID,
+	hrt_address		addr,
+	const void			*data,
+	const size_t		size)
+{
+assert(ID < N_SP_ID);
+assert(SP_DMEM_BASE[ID] != (hrt_address)-1);
+#ifndef C_RUN
+	ia_css_device_store(SP_DMEM_BASE[ID] + addr, data, size);
+#else
+	memcpy((void *)(uint32_t)addr, data, size);
+#endif
+return;
+}
+
+STORAGE_CLASS_SP_C void sp_dmem_load(
+	const sp_ID_t		ID,
+	const hrt_address	addr,
+	void				*data,
+	const size_t		size)
+{
+assert(ID < N_SP_ID);
+assert(SP_DMEM_BASE[ID] != (hrt_address)-1);
+#ifndef C_RUN
+	ia_css_device_load(SP_DMEM_BASE[ID] + addr, data, size);
+#else
+	memcpy(data, (void *)(uint32_t)addr, size);
+#endif
+return;
+}
+
+STORAGE_CLASS_SP_C void sp_dmem_store_uint8(
+	const sp_ID_t		ID,
+	hrt_address		addr,
+	const uint8_t		data)
+{
+assert(ID < N_SP_ID);
+assert(SP_DMEM_BASE[ID] != (hrt_address)-1);
+	(void)ID;
+#ifndef C_RUN
+	ia_css_device_store_uint8(SP_DMEM_BASE[SP0_ID] + addr, data);
+#else
+	*(uint8_t *)(uint32_t)addr = data;
+#endif
+return;
+}
+
+STORAGE_CLASS_SP_C void sp_dmem_store_uint16(
+	const sp_ID_t		ID,
+	hrt_address		addr,
+	const uint16_t		data)
+{
+assert(ID < N_SP_ID);
+assert(SP_DMEM_BASE[ID] != (hrt_address)-1);
+	(void)ID;
+#ifndef C_RUN
+	ia_css_device_store_uint16(SP_DMEM_BASE[SP0_ID] + addr, data);
+#else
+	*(uint16_t *)(uint32_t)addr = data;
+#endif
+return;
+}
+
+STORAGE_CLASS_SP_C void sp_dmem_store_uint32(
+	const sp_ID_t		ID,
+	hrt_address		addr,
+	const uint32_t		data)
+{
+assert(ID < N_SP_ID);
+assert(SP_DMEM_BASE[ID] != (hrt_address)-1);
+	(void)ID;
+#ifndef C_RUN
+	ia_css_device_store_uint32(SP_DMEM_BASE[SP0_ID] + addr, data);
+#else
+	*(uint32_t *)(uint32_t)addr = data;
+#endif
+return;
+}
+
+STORAGE_CLASS_SP_C uint8_t sp_dmem_load_uint8(
+	const sp_ID_t		ID,
+	const hrt_address	addr)
+{
+assert(ID < N_SP_ID);
+assert(SP_DMEM_BASE[ID] != (hrt_address)-1);
+	(void)ID;
+#ifndef C_RUN
+	return ia_css_device_load_uint8(SP_DMEM_BASE[SP0_ID] + addr);
+#else
+	return *(uint8_t *)(uint32_t)addr;
+#endif
+}
+
+STORAGE_CLASS_SP_C uint16_t sp_dmem_load_uint16(
+	const sp_ID_t		ID,
+	const hrt_address	addr)
+{
+assert(ID < N_SP_ID);
+assert(SP_DMEM_BASE[ID] != (hrt_address)-1);
+	(void)ID;
+#ifndef C_RUN
+	return ia_css_device_load_uint16(SP_DMEM_BASE[SP0_ID] + addr);
+#else
+	return *(uint16_t *)(uint32_t)addr;
+#endif
+}
+
+STORAGE_CLASS_SP_C uint32_t sp_dmem_load_uint32(
+	const sp_ID_t		ID,
+	const hrt_address	addr)
+{
+assert(ID < N_SP_ID);
+assert(SP_DMEM_BASE[ID] != (hrt_address)-1);
+	(void)ID;
+#ifndef C_RUN
+	return ia_css_device_load_uint32(SP_DMEM_BASE[SP0_ID] + addr);
+#else
+	return *(uint32_t *)(uint32_t)addr;
+#endif
+}
+
+#endif /* __SP_PRIVATE_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/system_local.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/system_local.h
new file mode 100644
index 0000000..111b346
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/system_local.h
@@ -0,0 +1,306 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __SYSTEM_LOCAL_H_INCLUDED__
+#define __SYSTEM_LOCAL_H_INCLUDED__
+
+#ifdef HRT_ISP_CSS_CUSTOM_HOST
+#ifndef HRT_USE_VIR_ADDRS
+#define HRT_USE_VIR_ADDRS
+#endif
+/* This interface is deprecated */
+/*#include "hive_isp_css_custom_host_hrt.h"*/
+#endif
+
+#include "system_global.h"
+
+#ifdef __FIST__
+#define HRT_ADDRESS_WIDTH	32		/* Surprise, this is a local property and even differs per platform */
+#else
+/* HRT assumes 32 by default (see Linux/include/hrt/hive_types.h), overrule it in case it is different */
+#undef HRT_ADDRESS_WIDTH
+#define HRT_ADDRESS_WIDTH	64		/* Surprise, this is a local property */
+#endif
+
+#if !defined(__KERNEL__) || (1==1)
+/* This interface is deprecated */
+#include "hrt/hive_types.h"
+#else  /* __KERNEL__ */
+#include <linux/types.h>
+
+#if HRT_ADDRESS_WIDTH==64
+typedef uint64_t			hrt_address;
+#elif HRT_ADDRESS_WIDTH==32
+typedef uint32_t			hrt_address;
+#else
+#error "system_local.h: HRT_ADDRESS_WIDTH must be one of {32,64}"
+#endif
+
+typedef uint32_t			hrt_vaddress;
+typedef uint32_t			hrt_data;
+#endif /* __KERNEL__ */
+
+/*
+ * Cell specific address maps
+ */
+#if HRT_ADDRESS_WIDTH==64
+
+#define GP_FIFO_BASE   ((hrt_address)0x0000000000090104)		/* This is NOT a base address */
+
+/* DDR */
+static const hrt_address DDR_BASE[N_DDR_ID] = {
+	(hrt_address)0x0000000120000000ULL};
+
+/* ISP */
+static const hrt_address ISP_CTRL_BASE[N_ISP_ID] = {
+	(hrt_address)0x0000000000020000ULL};
+
+static const hrt_address ISP_DMEM_BASE[N_ISP_ID] = {
+	(hrt_address)0x0000000000200000ULL};
+
+static const hrt_address ISP_BAMEM_BASE[N_BAMEM_ID] = {
+	(hrt_address)0x0000000000100000ULL};
+
+static const hrt_address ISP_VAMEM_BASE[N_VAMEM_ID] = {
+	(hrt_address)0x00000000001C0000ULL,
+	(hrt_address)0x00000000001D0000ULL,
+	(hrt_address)0x00000000001E0000ULL};
+
+static const hrt_address ISP_HMEM_BASE[N_HMEM_ID] = {
+	(hrt_address)0x00000000001F0000ULL};
+
+/* SP */
+static const hrt_address SP_CTRL_BASE[N_SP_ID] = {
+	(hrt_address)0x0000000000010000ULL};
+
+static const hrt_address SP_DMEM_BASE[N_SP_ID] = {
+	(hrt_address)0x0000000000300000ULL};
+
+static const hrt_address SP_PMEM_BASE[N_SP_ID] = {
+	(hrt_address)0x00000000000B0000ULL};
+
+/* MMU */
+#if defined (IS_ISP_2400_MAMOIADA_SYSTEM) || defined (IS_ISP_2401_MAMOIADA_SYSTEM)
+/*
+ * MMU0_ID: The data MMU
+ * MMU1_ID: The icache MMU
+ */
+static const hrt_address MMU_BASE[N_MMU_ID] = {
+	(hrt_address)0x0000000000070000ULL,
+	(hrt_address)0x00000000000A0000ULL};
+#else
+#error "system_local.h: SYSTEM must be one of {2400, 2401 }"
+#endif
+
+/* DMA */
+static const hrt_address DMA_BASE[N_DMA_ID] = {
+	(hrt_address)0x0000000000040000ULL};
+
+/* IRQ */
+static const hrt_address IRQ_BASE[N_IRQ_ID] = {
+	(hrt_address)0x0000000000000500ULL,
+	(hrt_address)0x0000000000030A00ULL,
+	(hrt_address)0x000000000008C000ULL,
+	(hrt_address)0x0000000000090200ULL};
+/*
+	(hrt_address)0x0000000000000500ULL};
+ */
+
+/* GDC */
+static const hrt_address GDC_BASE[N_GDC_ID] = {
+	(hrt_address)0x0000000000050000ULL,
+	(hrt_address)0x0000000000060000ULL};
+
+/* FIFO_MONITOR (not a subset of GP_DEVICE) */
+static const hrt_address FIFO_MONITOR_BASE[N_FIFO_MONITOR_ID] = {
+	(hrt_address)0x0000000000000000ULL};
+
+/*
+static const hrt_address GP_REGS_BASE[N_GP_REGS_ID] = {
+	(hrt_address)0x0000000000000000ULL};
+
+static const hrt_address GP_DEVICE_BASE[N_GP_DEVICE_ID] = {
+	(hrt_address)0x0000000000090000ULL};
+*/
+
+/* GP_DEVICE (single base for all separate GP_REG instances) */
+static const hrt_address GP_DEVICE_BASE[N_GP_DEVICE_ID] = {
+	(hrt_address)0x0000000000000000ULL};
+
+/*GP TIMER , all timer registers are inter-twined,
+ * so, having multiple base addresses for
+ * different timers does not help*/
+static const hrt_address GP_TIMER_BASE =
+	(hrt_address)0x0000000000000600ULL;
+/* GPIO */
+static const hrt_address GPIO_BASE[N_GPIO_ID] = {
+	(hrt_address)0x0000000000000400ULL};
+
+/* TIMED_CTRL */
+static const hrt_address TIMED_CTRL_BASE[N_TIMED_CTRL_ID] = {
+	(hrt_address)0x0000000000000100ULL};
+
+
+/* INPUT_FORMATTER */
+static const hrt_address INPUT_FORMATTER_BASE[N_INPUT_FORMATTER_ID] = {
+	(hrt_address)0x0000000000030000ULL,
+	(hrt_address)0x0000000000030200ULL,
+	(hrt_address)0x0000000000030400ULL,
+	(hrt_address)0x0000000000030600ULL}; /* memcpy() */
+
+/* INPUT_SYSTEM */
+static const hrt_address INPUT_SYSTEM_BASE[N_INPUT_SYSTEM_ID] = {
+	(hrt_address)0x0000000000080000ULL};
+/*	(hrt_address)0x0000000000081000ULL, */ /* capture A */
+/*	(hrt_address)0x0000000000082000ULL, */ /* capture B */
+/*	(hrt_address)0x0000000000083000ULL, */ /* capture C */
+/*	(hrt_address)0x0000000000084000ULL, */ /* Acquisition */
+/*	(hrt_address)0x0000000000085000ULL, */ /* DMA */
+/*	(hrt_address)0x0000000000089000ULL, */ /* ctrl */
+/*	(hrt_address)0x000000000008A000ULL, */ /* GP regs */
+/*	(hrt_address)0x000000000008B000ULL, */ /* FIFO */
+/*	(hrt_address)0x000000000008C000ULL, */ /* IRQ */
+
+/* RX, the MIPI lane control regs start at offset 0 */
+static const hrt_address RX_BASE[N_RX_ID] = {
+	(hrt_address)0x0000000000080100ULL};
+
+#elif HRT_ADDRESS_WIDTH==32
+
+#define GP_FIFO_BASE   ((hrt_address)0x00090104)		/* This is NOT a base address */
+
+/* DDR : Attention, this value not defined in 32-bit */
+static const hrt_address DDR_BASE[N_DDR_ID] = {
+	(hrt_address)0x00000000UL};
+
+/* ISP */
+static const hrt_address ISP_CTRL_BASE[N_ISP_ID] = {
+	(hrt_address)0x00020000UL};
+
+static const hrt_address ISP_DMEM_BASE[N_ISP_ID] = {
+	(hrt_address)0x00200000UL};
+
+static const hrt_address ISP_BAMEM_BASE[N_BAMEM_ID] = {
+	(hrt_address)0x100000UL};
+
+static const hrt_address ISP_VAMEM_BASE[N_VAMEM_ID] = {
+	(hrt_address)0xffffffffUL,
+	(hrt_address)0xffffffffUL,
+	(hrt_address)0xffffffffUL};
+
+static const hrt_address ISP_HMEM_BASE[N_HMEM_ID] = {
+	(hrt_address)0xffffffffUL};
+
+/* SP */
+static const hrt_address SP_CTRL_BASE[N_SP_ID] = {
+	(hrt_address)0x00010000UL};
+
+static const hrt_address SP_DMEM_BASE[N_SP_ID] = {
+	(hrt_address)0x00300000UL};
+
+static const hrt_address SP_PMEM_BASE[N_SP_ID] = {
+	(hrt_address)0x000B0000UL};
+
+/* MMU */
+#if defined (IS_ISP_2400_MAMOIADA_SYSTEM) || defined (IS_ISP_2401_MAMOIADA_SYSTEM)
+/*
+ * MMU0_ID: The data MMU
+ * MMU1_ID: The icache MMU
+ */
+static const hrt_address MMU_BASE[N_MMU_ID] = {
+	(hrt_address)0x00070000UL,
+	(hrt_address)0x000A0000UL};
+#else
+#error "system_local.h: SYSTEM must be one of {2400, 2401 }"
+#endif
+
+/* DMA */
+static const hrt_address DMA_BASE[N_DMA_ID] = {
+	(hrt_address)0x00040000UL};
+
+/* IRQ */
+static const hrt_address IRQ_BASE[N_IRQ_ID] = {
+	(hrt_address)0x00000500UL,
+	(hrt_address)0x00030A00UL,
+	(hrt_address)0x0008C000UL,
+	(hrt_address)0x00090200UL};
+/*
+	(hrt_address)0x00000500UL};
+ */
+
+/* GDC */
+static const hrt_address GDC_BASE[N_GDC_ID] = {
+	(hrt_address)0x00050000UL,
+	(hrt_address)0x00060000UL};
+
+/* FIFO_MONITOR (not a subset of GP_DEVICE) */
+static const hrt_address FIFO_MONITOR_BASE[N_FIFO_MONITOR_ID] = {
+	(hrt_address)0x00000000UL};
+
+/*
+static const hrt_address GP_REGS_BASE[N_GP_REGS_ID] = {
+	(hrt_address)0x00000000UL};
+
+static const hrt_address GP_DEVICE_BASE[N_GP_DEVICE_ID] = {
+	(hrt_address)0x00090000UL};
+*/
+
+/* GP_DEVICE (single base for all separate GP_REG instances) */
+static const hrt_address GP_DEVICE_BASE[N_GP_DEVICE_ID] = {
+	(hrt_address)0x00000000UL};
+
+/*GP TIMER , all timer registers are inter-twined,
+ * so, having multiple base addresses for
+ * different timers does not help*/
+static const hrt_address GP_TIMER_BASE =
+	(hrt_address)0x00000600UL;
+
+/* GPIO */
+static const hrt_address GPIO_BASE[N_GPIO_ID] = {
+	(hrt_address)0x00000400UL};
+
+/* TIMED_CTRL */
+static const hrt_address TIMED_CTRL_BASE[N_TIMED_CTRL_ID] = {
+	(hrt_address)0x00000100UL};
+
+
+/* INPUT_FORMATTER */
+static const hrt_address INPUT_FORMATTER_BASE[N_INPUT_FORMATTER_ID] = {
+	(hrt_address)0x00030000UL,
+	(hrt_address)0x00030200UL,
+	(hrt_address)0x00030400UL};
+/*	(hrt_address)0x00030600UL, */ /* memcpy() */
+
+/* INPUT_SYSTEM */
+static const hrt_address INPUT_SYSTEM_BASE[N_INPUT_SYSTEM_ID] = {
+	(hrt_address)0x00080000UL};
+/*	(hrt_address)0x00081000UL, */ /* capture A */
+/*	(hrt_address)0x00082000UL, */ /* capture B */
+/*	(hrt_address)0x00083000UL, */ /* capture C */
+/*	(hrt_address)0x00084000UL, */ /* Acquisition */
+/*	(hrt_address)0x00085000UL, */ /* DMA */
+/*	(hrt_address)0x00089000UL, */ /* ctrl */
+/*	(hrt_address)0x0008A000UL, */ /* GP regs */
+/*	(hrt_address)0x0008B000UL, */ /* FIFO */
+/*	(hrt_address)0x0008C000UL, */ /* IRQ */
+
+/* RX, the MIPI lane control regs start at offset 0 */
+static const hrt_address RX_BASE[N_RX_ID] = {
+	(hrt_address)0x00080100UL};
+
+#else
+#error "system_local.h: HRT_ADDRESS_WIDTH must be one of {32,64}"
+#endif
+
+#endif /* __SYSTEM_LOCAL_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/timed_ctrl.c b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/timed_ctrl.c
new file mode 100644
index 0000000..cd12d74
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/timed_ctrl.c
@@ -0,0 +1,74 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#include "timed_ctrl.h"
+
+#ifndef __INLINE_TIMED_CTRL__
+#include "timed_ctrl_private.h"
+#endif /* __INLINE_TIMED_CTRL__ */
+
+#include "assert_support.h"
+
+void timed_ctrl_snd_commnd(
+	const timed_ctrl_ID_t			ID,
+	hrt_data				mask,
+	hrt_data				condition,
+	hrt_data				counter,
+	hrt_address				addr,
+	hrt_data				value)
+{
+	OP___assert(ID == TIMED_CTRL0_ID);
+	OP___assert(TIMED_CTRL_BASE[ID] != (hrt_address)-1);
+
+	timed_ctrl_reg_store(ID, _HRT_TIMED_CONTROLLER_CMD_REG_IDX, mask);
+	timed_ctrl_reg_store(ID, _HRT_TIMED_CONTROLLER_CMD_REG_IDX, condition);
+	timed_ctrl_reg_store(ID, _HRT_TIMED_CONTROLLER_CMD_REG_IDX, counter);
+	timed_ctrl_reg_store(ID, _HRT_TIMED_CONTROLLER_CMD_REG_IDX, (hrt_data)addr);
+	timed_ctrl_reg_store(ID, _HRT_TIMED_CONTROLLER_CMD_REG_IDX, value);
+}
+
+/* pqiao TODO: make sure the following commands get
+	correct BASE address both for csim and android */
+
+void timed_ctrl_snd_sp_commnd(
+	const timed_ctrl_ID_t			ID,
+	hrt_data				mask,
+	hrt_data				condition,
+	hrt_data				counter,
+	const sp_ID_t				SP_ID,
+	hrt_address				offset,
+	hrt_data				value)
+{
+	OP___assert(SP_ID < N_SP_ID);
+	OP___assert(SP_DMEM_BASE[SP_ID] != (hrt_address)-1);
+
+	timed_ctrl_snd_commnd(ID, mask, condition, counter,
+				SP_DMEM_BASE[SP_ID]+offset, value);
+}
+
+void timed_ctrl_snd_gpio_commnd(
+	const timed_ctrl_ID_t			ID,
+	hrt_data				mask,
+	hrt_data				condition,
+	hrt_data				counter,
+	const gpio_ID_t				GPIO_ID,
+	hrt_address				offset,
+	hrt_data				value)
+{
+	OP___assert(GPIO_ID < N_GPIO_ID);
+	OP___assert(GPIO_BASE[GPIO_ID] != (hrt_address)-1);
+
+	timed_ctrl_snd_commnd(ID, mask, condition, counter,
+				GPIO_BASE[GPIO_ID]+offset, value);
+}
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/timed_ctrl_local.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/timed_ctrl_local.h
new file mode 100644
index 0000000..e570813
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/timed_ctrl_local.h
@@ -0,0 +1,20 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __TIMED_CTRL_LOCAL_H_INCLUDED__
+#define __TIMED_CTRL_LOCAL_H_INCLUDED__
+
+#include "timed_ctrl_global.h"
+
+#endif /* __TIMED_CTRL_LOCAL_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/timed_ctrl_private.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/timed_ctrl_private.h
new file mode 100644
index 0000000..fb0fdbb
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/timed_ctrl_private.h
@@ -0,0 +1,34 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __TIMED_CTRL_PRIVATE_H_INCLUDED__
+#define __TIMED_CTRL_PRIVATE_H_INCLUDED__
+
+#include "timed_ctrl_public.h"
+
+#include "device_access.h"
+
+#include "assert_support.h"
+
+STORAGE_CLASS_TIMED_CTRL_C void timed_ctrl_reg_store(
+	const timed_ctrl_ID_t	ID,
+	const unsigned int		reg,
+	const hrt_data			value)
+{
+OP___assert(ID < N_TIMED_CTRL_ID);
+OP___assert(TIMED_CTRL_BASE[ID] != (hrt_address)-1);
+	ia_css_device_store_uint32(TIMED_CTRL_BASE[ID] + reg*sizeof(hrt_data), value);
+}
+
+#endif /* __GP_DEVICE_PRIVATE_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/vamem_local.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/vamem_local.h
new file mode 100644
index 0000000..c4e99af
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/vamem_local.h
@@ -0,0 +1,20 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __VAMEM_LOCAL_H_INCLUDED__
+#define __VAMEM_LOCAL_H_INCLUDED__
+
+#include "vamem_global.h"
+
+#endif /* __VAMEM_LOCAL_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/vamem_private.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/vamem_private.h
new file mode 100644
index 0000000..5e05258
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/vamem_private.h
@@ -0,0 +1,37 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __VAMEM_PRIVATE_H_INCLUDED__
+#define __VAMEM_PRIVATE_H_INCLUDED__
+
+#include "vamem_public.h"
+
+#include <hrt/api.h>
+
+#include "assert_support.h"
+
+
+STORAGE_CLASS_ISP_C void isp_vamem_store(
+	const vamem_ID_t	ID,
+	vamem_data_t		*addr,
+	const vamem_data_t	*data,
+	const size_t		size) /* in vamem_data_t */
+{
+	assert(ID < N_VAMEM_ID);
+	assert(ISP_VAMEM_BASE[ID] != (hrt_address)-1);
+	hrt_master_port_store(ISP_VAMEM_BASE[ID] + (unsigned)addr, data, size * sizeof(vamem_data_t));
+}
+
+
+#endif /* __VAMEM_PRIVATE_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/vmem.c b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/vmem.c
new file mode 100644
index 0000000..b30cceb
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/vmem.c
@@ -0,0 +1,279 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010 - 2016, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#include "isp.h"
+#include "vmem.h"
+#include "vmem_local.h"
+
+#if !defined(HRT_MEMORY_ACCESS)
+#include "ia_css_device_access.h"
+#endif
+#include "assert_support.h"
+#include "platform_support.h"			/* hrt_sleep() */
+
+typedef unsigned long long hive_uedge;
+typedef hive_uedge *hive_wide;
+
+/* Copied from SDK: sim_semantics.c */
+
+/* subword bits move like this:         MSB[____xxxx____]LSB -> MSB[00000000xxxx]LSB */
+#define SUBWORD(w, start, end)     (((w) & (((1ULL << ((end)-1))-1) << 1 | 1)) >> (start))
+
+/* inverse subword bits move like this: MSB[xxxx____xxxx]LSB -> MSB[xxxx0000xxxx]LSB */
+#define INV_SUBWORD(w, start, end) ((w) & (~(((1ULL << ((end)-1))-1) << 1 | 1) | ((1ULL << (start))-1)) )
+
+#define uedge_bits (8*sizeof(hive_uedge))
+#define move_lower_bits(target, target_bit, src, src_bit) move_subword(target, target_bit, src, 0, src_bit)
+#define move_upper_bits(target, target_bit, src, src_bit) move_subword(target, target_bit, src, src_bit, uedge_bits)
+#define move_word(target, target_bit, src) move_subword(target, target_bit, src, 0, uedge_bits)
+
+static void
+move_subword (
+	hive_uedge *target,
+	unsigned target_bit,
+	hive_uedge src,
+	unsigned src_start,
+	unsigned src_end)
+{
+	unsigned int start_elem = target_bit / uedge_bits;
+	unsigned int start_bit  = target_bit % uedge_bits;
+	unsigned subword_width = src_end - src_start;
+
+	hive_uedge src_subword = SUBWORD(src, src_start, src_end);
+
+	if (subword_width + start_bit > uedge_bits) { /* overlap */
+		hive_uedge old_val1;
+		hive_uedge old_val0 = INV_SUBWORD(target[start_elem], start_bit, uedge_bits);
+		target[start_elem] = old_val0 | (src_subword << start_bit);
+		old_val1 = INV_SUBWORD(target[start_elem+1], 0, subword_width + start_bit - uedge_bits);
+		target[start_elem+1] = old_val1 | (src_subword >> ( uedge_bits - start_bit));
+	} else {
+		hive_uedge old_val = INV_SUBWORD(target[start_elem], start_bit, start_bit + subword_width);
+		target[start_elem] = old_val | (src_subword << start_bit);
+	}
+}
+
+static void
+hive_sim_wide_unpack(
+	hive_wide vector,
+	hive_wide elem,
+	hive_uint elem_bits,
+	hive_uint index)
+{
+	/* pointers into wide_type: */
+	unsigned int start_elem = (elem_bits * index) / uedge_bits;
+	unsigned int start_bit  = (elem_bits * index) % uedge_bits;
+	unsigned int end_elem   = (elem_bits * (index + 1) - 1) / uedge_bits;
+	unsigned int end_bit    = ((elem_bits * (index + 1) - 1) % uedge_bits) + 1;
+
+	if (elem_bits == uedge_bits) {
+		/* easy case for speedup: */
+		elem[0] = vector[index];
+	} else if (start_elem == end_elem) {
+		/* only one (<=64 bits) element needs to be (partly) copied: */
+		move_subword(elem, 0, vector[start_elem], start_bit, end_bit);
+	} else {
+		/* general case: handles edge spanning cases (includes >64bit elements) */
+		unsigned int bits_written = 0;
+		unsigned int i;
+		move_upper_bits(elem, bits_written, vector[start_elem], start_bit);
+		bits_written += (64 - start_bit);
+		for(i = start_elem+1; i < end_elem; i++) {
+			move_word(elem, bits_written, vector[i]);
+			bits_written += uedge_bits;
+		}
+		move_lower_bits(elem, bits_written , vector[end_elem], end_bit);
+	}
+}
+
+static void
+hive_sim_wide_pack(
+	hive_wide vector,
+	hive_wide elem,
+	hive_uint elem_bits,
+	hive_uint index)
+{
+	/* pointers into wide_type: */
+	unsigned int start_elem = (elem_bits * index) / uedge_bits;
+
+	/* easy case for speedup: */
+	if (elem_bits == uedge_bits) {
+		vector[start_elem] = elem[0];
+	} else if (elem_bits > uedge_bits) {
+		unsigned bits_to_write = elem_bits;
+		unsigned start_bit = elem_bits * index;
+		unsigned i = 0;
+		for(; bits_to_write > uedge_bits; bits_to_write -= uedge_bits, i++, start_bit += uedge_bits) {
+			move_word(vector, start_bit, elem[i]);
+		}
+		move_lower_bits(vector, start_bit, elem[i], bits_to_write);
+	} else {
+		/* only one element needs to be (partly) copied: */
+		move_lower_bits(vector, elem_bits * index, elem[0], elem_bits);
+	}
+}
+
+static void load_vector (
+	const isp_ID_t		ID,
+	t_vmem_elem		*to,
+	const t_vmem_elem	*from)
+{
+	unsigned i;
+	hive_uedge *data;
+#ifdef C_RUN
+	data = (hive_uedge *)from;
+	(void)ID;
+#else
+	unsigned size = sizeof(short)*ISP_NWAY;
+	VMEM_ARRAY(v, 2*ISP_NWAY); /* Need 2 vectors to work around vmem hss bug */
+	assert(ISP_BAMEM_BASE[ID] != (hrt_address)-1);
+#if !defined(HRT_MEMORY_ACCESS)
+	ia_css_device_load(ISP_BAMEM_BASE[ID] + (unsigned long)from, &v[0][0], size);
+#else
+	hrt_master_port_load(ISP_BAMEM_BASE[ID] + (unsigned long)from, &v[0][0], size);
+#endif
+	data = (hive_uedge *)v;
+#endif
+	for (i = 0; i < ISP_NWAY; i++) {
+		hive_uedge elem = 0;
+		hive_sim_wide_unpack(data, &elem, ISP_VEC_ELEMBITS, i);
+		to[i] = elem;
+	}
+	hrt_sleep(); /* Spend at least 1 cycles per vector */
+}
+
+static void store_vector (
+	const isp_ID_t		ID,
+	t_vmem_elem		*to,
+	const t_vmem_elem	*from)
+{
+	unsigned i;
+#ifdef C_RUN
+	hive_uedge *data = (hive_uedge *)to;
+	(void)ID;
+	for (i = 0; i < ISP_NWAY; i++) {
+		hive_sim_wide_pack(data, (hive_wide)&from[i], ISP_VEC_ELEMBITS, i);
+	}
+#else
+	unsigned size = sizeof(short)*ISP_NWAY;
+	VMEM_ARRAY(v, 2*ISP_NWAY); /* Need 2 vectors to work around vmem hss bug */
+	//load_vector (&v[1][0], &to[ISP_NWAY]); /* Fetch the next vector, since it will be overwritten. */
+	hive_uedge *data = (hive_uedge *)v;
+	for (i = 0; i < ISP_NWAY; i++) {
+		hive_sim_wide_pack(data, (hive_wide)&from[i], ISP_VEC_ELEMBITS, i);
+	}
+	assert(ISP_BAMEM_BASE[ID] != (hrt_address)-1);
+#if !defined(HRT_MEMORY_ACCESS)
+	ia_css_device_store(ISP_BAMEM_BASE[ID] + (unsigned long)to, &v, size);
+#else
+	//hrt_mem_store (ISP, VMEM, (unsigned)to, &v, siz); /* This will overwrite the next vector as well */
+	hrt_master_port_store(ISP_BAMEM_BASE[ID] + (unsigned long)to, &v, size);
+#endif
+	hrt_sleep(); /* Spend at least 1 cycles per vector */
+#endif
+}
+
+void isp_vmem_load(
+	const isp_ID_t		ID,
+	const t_vmem_elem	*from,
+	t_vmem_elem		*to,
+	unsigned		elems) /* In t_vmem_elem */
+{
+	unsigned c;
+	const t_vmem_elem *vp = from;
+	assert(ID < N_ISP_ID);
+#ifndef C_RUN
+	assert((unsigned long)from % ISP_VEC_ALIGN == 0);
+#endif
+	assert(elems % ISP_NWAY == 0);
+	for (c = 0; c < elems; c += ISP_NWAY) {
+		load_vector(ID, &to[c], vp);
+		vp = (t_vmem_elem *)((char*)vp + ISP_VEC_ALIGN);
+	}
+}
+
+void isp_vmem_store(
+	const isp_ID_t		ID,
+	t_vmem_elem		*to,
+	const t_vmem_elem	*from,
+	unsigned		elems) /* In t_vmem_elem */
+{
+	unsigned c;
+	t_vmem_elem *vp = to;
+	assert(ID < N_ISP_ID);
+#ifndef C_RUN
+	assert((unsigned long)to % ISP_VEC_ALIGN == 0);
+#endif
+	assert(elems % ISP_NWAY == 0);
+	for (c = 0; c < elems; c += ISP_NWAY) {
+		store_vector (ID, vp, &from[c]);
+		vp = (t_vmem_elem *)((char*)vp + ISP_VEC_ALIGN);
+	}
+}
+
+void isp_vmem_2d_load (
+	const isp_ID_t		ID,
+	const t_vmem_elem	*from,
+	t_vmem_elem		*to,
+	unsigned height,
+	unsigned width,
+	unsigned stride_to,  /* In t_vmem_elem */
+	unsigned stride_from /* In t_vmem_elem */)
+{
+	unsigned h;
+
+	assert(ID < N_ISP_ID);
+#ifndef C_RUN
+	assert((unsigned long)from % ISP_VEC_ALIGN == 0);
+#endif
+	assert(width % ISP_NWAY == 0);
+	assert(stride_from % ISP_NWAY == 0);
+	for (h = 0; h < height; h++) {
+		unsigned c;
+		const t_vmem_elem *vp = from;
+		for (c = 0; c < width; c += ISP_NWAY) {
+			load_vector(ID, &to[stride_to*h + c], vp);
+			vp = (t_vmem_elem *)((char*)vp + ISP_VEC_ALIGN);
+		}
+		from = (const t_vmem_elem *)((const char *)from + stride_from/ISP_NWAY*ISP_VEC_ALIGN);
+	}
+}
+
+void isp_vmem_2d_store (
+	const isp_ID_t		ID,
+	t_vmem_elem		*to,
+	const t_vmem_elem	*from,
+	unsigned height,
+	unsigned width,
+	unsigned stride_to,  /* In t_vmem_elem */
+	unsigned stride_from /* In t_vmem_elem */)
+{
+	unsigned h;
+
+	assert(ID < N_ISP_ID);
+#ifndef C_RUN
+	assert((unsigned long)to % ISP_VEC_ALIGN == 0);
+#endif
+	assert(width % ISP_NWAY == 0);
+	assert(stride_to % ISP_NWAY == 0);
+	for (h = 0; h < height; h++) {
+		unsigned c;
+		t_vmem_elem *vp = to;
+		for (c = 0; c < width; c += ISP_NWAY) {
+			store_vector (ID, vp, &from[stride_from*h + c]);
+			vp = (t_vmem_elem *)((char*)vp + ISP_VEC_ALIGN);
+		}
+		to = (t_vmem_elem *)((char *)to + stride_to/ISP_NWAY*ISP_VEC_ALIGN);
+	}
+}
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/vmem_local.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/vmem_local.h
new file mode 100644
index 0000000..de85644b
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/vmem_local.h
@@ -0,0 +1,55 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __VMEM_LOCAL_H_INCLUDED__
+#define __VMEM_LOCAL_H_INCLUDED__
+
+#include "type_support.h"
+#include "vmem_global.h"
+
+typedef uint16_t t_vmem_elem;
+
+#define VMEM_ARRAY(x,s)    t_vmem_elem x[s/ISP_NWAY][ISP_NWAY]
+
+void isp_vmem_load(
+	const isp_ID_t		ID,
+	const t_vmem_elem	*from,
+	t_vmem_elem		*to,
+	unsigned		elems); /* In t_vmem_elem */
+
+void isp_vmem_store(
+	const isp_ID_t		ID,
+	t_vmem_elem		*to,
+	const t_vmem_elem	*from,
+	unsigned		elems); /* In t_vmem_elem */
+
+void isp_vmem_2d_load (
+	const isp_ID_t		ID,
+	const t_vmem_elem	*from,
+	t_vmem_elem		*to,
+	unsigned		height,
+	unsigned		width,
+	unsigned		stride_to,  /* In t_vmem_elem */
+	unsigned		stride_from /* In t_vmem_elem */);
+
+void isp_vmem_2d_store (
+	const isp_ID_t		ID,
+	t_vmem_elem		*to,
+	const t_vmem_elem	*from,
+	unsigned		height,
+	unsigned		width,
+	unsigned		stride_to,  /* In t_vmem_elem */
+	unsigned		stride_from /* In t_vmem_elem */);
+
+#endif /* __VMEM_LOCAL_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/vmem_private.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/vmem_private.h
new file mode 100644
index 0000000..f48d128
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/vmem_private.h
@@ -0,0 +1,20 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __VMEM_PRIVATE_H_INCLUDED__
+#define __VMEM_PRIVATE_H_INCLUDED__
+
+#include "vmem_public.h"
+
+#endif /* __VMEM_PRIVATE_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/input_formatter_global.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/input_formatter_global.h
new file mode 100644
index 0000000..5654d91
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/input_formatter_global.h
@@ -0,0 +1,130 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __INPUT_FORMATTER_GLOBAL_H_INCLUDED__
+#define __INPUT_FORMATTER_GLOBAL_H_INCLUDED__
+
+#define IS_INPUT_FORMATTER_VERSION2
+#define IS_INPUT_SWITCH_VERSION2
+
+#include <type_support.h>
+#include <system_types.h>
+#include "if_defs.h"
+#include "str2mem_defs.h"
+#include "input_switch_2400_defs.h"
+
+#define _HIVE_INPUT_SWITCH_GET_FSYNC_REG_LSB(ch_id)        ((ch_id) * 3)
+
+#define HIVE_SWITCH_N_CHANNELS				4
+#define HIVE_SWITCH_N_FORMATTYPES			32
+#define HIVE_SWITCH_N_SWITCH_CODE			4
+#define HIVE_SWITCH_M_CHANNELS				0x00000003
+#define HIVE_SWITCH_M_FORMATTYPES			0x0000001f
+#define HIVE_SWITCH_M_SWITCH_CODE			0x00000003
+#define HIVE_SWITCH_M_FSYNC					0x00000007
+
+#define HIVE_SWITCH_ENCODE_FSYNC(x) \
+	(1U<<(((x)-1)&HIVE_SWITCH_M_CHANNELS))
+
+#define _HIVE_INPUT_SWITCH_GET_LUT_FIELD(reg, bit_index) \
+	(((reg) >> (bit_index)) & HIVE_SWITCH_M_SWITCH_CODE)
+#define _HIVE_INPUT_SWITCH_SET_LUT_FIELD(reg, bit_index, val) \
+	(((reg) & ~(HIVE_SWITCH_M_SWITCH_CODE<<(bit_index))) | (((hrt_data)(val)&HIVE_SWITCH_M_SWITCH_CODE)<<(bit_index)))
+#define _HIVE_INPUT_SWITCH_GET_FSYNC_FIELD(reg, bit_index) \
+	(((reg) >> (bit_index)) & HIVE_SWITCH_M_FSYNC)
+#define _HIVE_INPUT_SWITCH_SET_FSYNC_FIELD(reg, bit_index, val) \
+	(((reg) & ~(HIVE_SWITCH_M_FSYNC<<(bit_index))) | (((hrt_data)(val)&HIVE_SWITCH_M_FSYNC)<<(bit_index)))
+
+typedef struct input_formatter_cfg_s	input_formatter_cfg_t;
+
+/* Hardware registers */
+/*#define HIVE_IF_RESET_ADDRESS                   0x000*/ /* deprecated */
+#define HIVE_IF_START_LINE_ADDRESS              0x004
+#define HIVE_IF_START_COLUMN_ADDRESS            0x008
+#define HIVE_IF_CROPPED_HEIGHT_ADDRESS          0x00C
+#define HIVE_IF_CROPPED_WIDTH_ADDRESS           0x010
+#define HIVE_IF_VERTICAL_DECIMATION_ADDRESS     0x014
+#define HIVE_IF_HORIZONTAL_DECIMATION_ADDRESS   0x018
+#define HIVE_IF_H_DEINTERLEAVING_ADDRESS        0x01C
+#define HIVE_IF_LEFTPADDING_WIDTH_ADDRESS       0x020
+#define HIVE_IF_END_OF_LINE_OFFSET_ADDRESS      0x024
+#define HIVE_IF_VMEM_START_ADDRESS_ADDRESS      0x028
+#define HIVE_IF_VMEM_END_ADDRESS_ADDRESS        0x02C
+#define HIVE_IF_VMEM_INCREMENT_ADDRESS          0x030
+#define HIVE_IF_YUV_420_FORMAT_ADDRESS          0x034
+#define HIVE_IF_VSYNCK_ACTIVE_LOW_ADDRESS       0x038
+#define HIVE_IF_HSYNCK_ACTIVE_LOW_ADDRESS       0x03C
+#define HIVE_IF_ALLOW_FIFO_OVERFLOW_ADDRESS     0x040
+#define HIVE_IF_BLOCK_FIFO_NO_REQ_ADDRESS       0x044
+#define HIVE_IF_V_DEINTERLEAVING_ADDRESS        0x048
+#define HIVE_IF_FSM_CROP_PIXEL_COUNTER          0x110
+#define HIVE_IF_FSM_CROP_LINE_COUNTER           0x10C
+#define HIVE_IF_FSM_CROP_STATUS                 0x108
+
+/* Registers only for simulation */
+#define HIVE_IF_CRUN_MODE_ADDRESS               0x04C
+#define HIVE_IF_DUMP_OUTPUT_ADDRESS             0x050
+
+/* Follow the DMA syntax, "cmd" last */
+#define IF_PACK(val, cmd)             ((val & 0x0fff) | (cmd /*& 0xf000*/))
+
+#define HIVE_STR2MEM_SOFT_RESET_REG_ADDRESS                   (_STR2MEM_SOFT_RESET_REG_ID * _STR2MEM_REG_ALIGN)
+#define HIVE_STR2MEM_INPUT_ENDIANNESS_REG_ADDRESS             (_STR2MEM_INPUT_ENDIANNESS_REG_ID * _STR2MEM_REG_ALIGN)
+#define HIVE_STR2MEM_OUTPUT_ENDIANNESS_REG_ADDRESS            (_STR2MEM_OUTPUT_ENDIANNESS_REG_ID * _STR2MEM_REG_ALIGN)
+#define HIVE_STR2MEM_BIT_SWAPPING_REG_ADDRESS                 (_STR2MEM_BIT_SWAPPING_REG_ID * _STR2MEM_REG_ALIGN)
+#define HIVE_STR2MEM_BLOCK_SYNC_LEVEL_REG_ADDRESS             (_STR2MEM_BLOCK_SYNC_LEVEL_REG_ID * _STR2MEM_REG_ALIGN)
+#define HIVE_STR2MEM_PACKET_SYNC_LEVEL_REG_ADDRESS            (_STR2MEM_PACKET_SYNC_LEVEL_REG_ID * _STR2MEM_REG_ALIGN)
+#define HIVE_STR2MEM_READ_POST_WRITE_SYNC_ENABLE_REG_ADDRESS  (_STR2MEM_READ_POST_WRITE_SYNC_ENABLE_REG_ID * _STR2MEM_REG_ALIGN)
+#define HIVE_STR2MEM_DUAL_BYTE_INPUTS_ENABLED_REG_ADDRESS     (_STR2MEM_DUAL_BYTE_INPUTS_ENABLED_REG_ID * _STR2MEM_REG_ALIGN)
+#define HIVE_STR2MEM_EN_STAT_UPDATE_ADDRESS                   (_STR2MEM_EN_STAT_UPDATE_ID * _STR2MEM_REG_ALIGN)
+
+/*
+ * This data structure is shared between host and SP
+ */
+struct input_formatter_cfg_s {
+	uint32_t	start_line;
+	uint32_t	start_column;
+	uint32_t	left_padding;
+	uint32_t	cropped_height;
+	uint32_t	cropped_width;
+	uint32_t	deinterleaving;
+	uint32_t	buf_vecs;
+	uint32_t	buf_start_index;
+	uint32_t	buf_increment;
+	uint32_t	buf_eol_offset;
+	uint32_t	is_yuv420_format;
+	uint32_t	block_no_reqs;
+};
+
+#define DEFAULT_IF_CONFIG \
+{ \
+	0,          /* start_line */\
+	0,          /* start_column */\
+	0,          /* left_padding */\
+	0,          /* cropped_height */\
+	0,          /* cropped_width */\
+	0,          /* deinterleaving */\
+	0,          /*.buf_vecs */\
+	0,          /* buf_start_index */\
+	0,          /* buf_increment */\
+	0,          /* buf_eol_offset */\
+	false,      /* is_yuv420_format */\
+	false       /* block_no_reqs */\
+}
+
+extern const hrt_address HIVE_IF_SRST_ADDRESS[N_INPUT_FORMATTER_ID];
+extern const hrt_data HIVE_IF_SRST_MASK[N_INPUT_FORMATTER_ID];
+extern const uint8_t HIVE_IF_SWITCH_CODE[N_INPUT_FORMATTER_ID];
+
+#endif /* __INPUT_FORMATTER_GLOBAL_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/input_system_global.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/input_system_global.h
new file mode 100644
index 0000000..9ba3652
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/input_system_global.h
@@ -0,0 +1,155 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __INPUT_SYSTEM_GLOBAL_H_INCLUDED__
+#define __INPUT_SYSTEM_GLOBAL_H_INCLUDED__
+
+#define IS_INPUT_SYSTEM_VERSION_2
+
+#include <type_support.h>
+
+//CSI reveiver has 3 ports.
+#define		N_CSI_PORTS (3)
+//AM: Use previous define for this.
+
+//MIPI allows upto 4 channels.
+#define		N_CHANNELS  (4) 
+// 12KB = 256bit x 384 words
+#define		IB_CAPACITY_IN_WORDS (384)
+
+typedef enum {
+	MIPI_0LANE_CFG = 0,
+	MIPI_1LANE_CFG = 1,
+	MIPI_2LANE_CFG = 2,
+	MIPI_3LANE_CFG = 3,
+	MIPI_4LANE_CFG = 4
+} mipi_lane_cfg_t;
+
+typedef enum {
+	INPUT_SYSTEM_SOURCE_SENSOR = 0,
+	INPUT_SYSTEM_SOURCE_FIFO,
+	INPUT_SYSTEM_SOURCE_TPG,
+	INPUT_SYSTEM_SOURCE_PRBS,
+	INPUT_SYSTEM_SOURCE_MEMORY,
+	N_INPUT_SYSTEM_SOURCE
+} input_system_source_t;
+
+/* internal routing configuration */
+typedef enum {
+	INPUT_SYSTEM_DISCARD_ALL = 0,
+	INPUT_SYSTEM_CSI_BACKEND = 1,
+	INPUT_SYSTEM_INPUT_BUFFER = 2, 
+	INPUT_SYSTEM_MULTICAST = 3,
+	N_INPUT_SYSTEM_CONNECTION
+} input_system_connection_t;
+
+typedef enum {
+	INPUT_SYSTEM_MIPI_PORT0,
+	INPUT_SYSTEM_MIPI_PORT1,
+	INPUT_SYSTEM_MIPI_PORT2,
+	INPUT_SYSTEM_ACQUISITION_UNIT,
+	N_INPUT_SYSTEM_MULTIPLEX
+} input_system_multiplex_t;
+
+typedef enum {
+	INPUT_SYSTEM_SINK_MEMORY = 0,
+	INPUT_SYSTEM_SINK_ISP,
+	INPUT_SYSTEM_SINK_SP,
+	N_INPUT_SYSTEM_SINK
+} input_system_sink_t;
+
+typedef enum {
+	INPUT_SYSTEM_FIFO_CAPTURE = 0,
+	INPUT_SYSTEM_FIFO_CAPTURE_WITH_COUNTING,
+	INPUT_SYSTEM_SRAM_BUFFERING,
+	INPUT_SYSTEM_XMEM_BUFFERING,
+	INPUT_SYSTEM_XMEM_CAPTURE,
+	INPUT_SYSTEM_XMEM_ACQUIRE,
+	N_INPUT_SYSTEM_BUFFERING_MODE
+} buffering_mode_t;
+
+typedef struct input_system_cfg_s	input_system_cfg_t;
+typedef struct sync_generator_cfg_s	sync_generator_cfg_t;
+typedef struct tpg_cfg_s			tpg_cfg_t;
+typedef struct prbs_cfg_s			prbs_cfg_t;
+
+/* MW: uint16_t should be sufficient */
+struct input_system_cfg_s {
+	uint32_t	no_side_band;
+	uint32_t	fmt_type;
+	uint32_t	ch_id;
+	uint32_t	input_mode;
+};
+
+struct sync_generator_cfg_s {
+	uint32_t	width;
+	uint32_t	height;
+	uint32_t	hblank_cycles;
+	uint32_t	vblank_cycles;
+};
+
+/* MW: tpg & prbs are exclusive */
+struct tpg_cfg_s {
+	uint32_t	x_mask;
+	uint32_t	y_mask;
+	uint32_t	x_delta;
+	uint32_t	y_delta;
+	uint32_t	xy_mask;
+	sync_generator_cfg_t sync_gen_cfg;
+};
+
+struct prbs_cfg_s {
+	uint32_t	seed;
+	sync_generator_cfg_t sync_gen_cfg;
+};
+
+struct gpfifo_cfg_s {
+// TBD.
+	sync_generator_cfg_t sync_gen_cfg;
+};
+
+typedef struct gpfifo_cfg_s		gpfifo_cfg_t;
+
+//ALX:Commented out to pass the compilation.
+//typedef struct input_system_cfg_s input_system_cfg_t;
+
+struct ib_buffer_s {
+	uint32_t	mem_reg_size;
+	uint32_t	nof_mem_regs;
+	uint32_t	mem_reg_addr;
+};
+
+typedef struct ib_buffer_s	ib_buffer_t;
+
+struct csi_cfg_s {
+	uint32_t			csi_port;
+    buffering_mode_t	buffering_mode;
+	ib_buffer_t			csi_buffer;
+	ib_buffer_t			acquisition_buffer;
+	uint32_t			nof_xmem_buffers;
+};
+
+typedef struct csi_cfg_s	 csi_cfg_t;
+
+typedef enum {
+	INPUT_SYSTEM_CFG_FLAG_RESET	= 0,
+	INPUT_SYSTEM_CFG_FLAG_SET		= 1U << 0,
+	INPUT_SYSTEM_CFG_FLAG_BLOCKED	= 1U << 1,
+	INPUT_SYSTEM_CFG_FLAG_REQUIRED	= 1U << 2,
+	INPUT_SYSTEM_CFG_FLAG_CONFLICT	= 1U << 3	// To mark a conflicting configuration.
+} input_system_cfg_flag_t;
+
+typedef uint32_t input_system_config_flags_t; 
+
+#endif /* __INPUT_SYSTEM_GLOBAL_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/irq_global.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/irq_global.h
new file mode 100644
index 0000000..64554d8
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/irq_global.h
@@ -0,0 +1,45 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __IRQ_GLOBAL_H_INCLUDED__
+#define __IRQ_GLOBAL_H_INCLUDED__
+
+#include <system_types.h>
+
+#define IS_IRQ_VERSION_2
+#define IS_IRQ_MAP_VERSION_2
+
+/* We cannot include the (hrt host ID) file defining the "CSS_RECEIVER" property without side effects */
+#ifndef HAS_NO_RX
+#if defined(IS_ISP_2400_MAMOIADA_SYSTEM)
+/*#define CSS_RECEIVER testbench_isp_inp_sys_csi_receiver*/
+#include "hive_isp_css_irq_types_hrt.h"	/* enum	hrt_isp_css_irq */
+#elif defined(IS_ISP_2401_MAMOIADA_SYSTEM)
+/*#define CSS_RECEIVER testbench_isp_is_2400_inp_sys_csi_receiver*/
+#include "hive_isp_css_2401_irq_types_hrt.h"	/* enum	hrt_isp_css_irq */
+#else
+#error "irq_global.h: 2400_SYSTEM must be one of {2400, 2401 }"
+#endif
+#endif
+
+/* The IRQ is not mapped uniformly on its related interfaces */
+#define	IRQ_SW_CHANNEL_OFFSET	hrt_isp_css_irq_sw_pin_0
+
+typedef enum {
+	IRQ_SW_CHANNEL0_ID = hrt_isp_css_irq_sw_pin_0 - IRQ_SW_CHANNEL_OFFSET,
+	IRQ_SW_CHANNEL1_ID = hrt_isp_css_irq_sw_pin_1 - IRQ_SW_CHANNEL_OFFSET,
+	N_IRQ_SW_CHANNEL_ID
+} irq_sw_channel_id_t;
+
+#endif /* __IRQ_GLOBAL_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/isp_global.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/isp_global.h
new file mode 100644
index 0000000..14d5748
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/isp_global.h
@@ -0,0 +1,115 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __ISP_GLOBAL_H_INCLUDED__
+#define __ISP_GLOBAL_H_INCLUDED__
+
+#include <system_types.h>
+
+#if defined (HAS_ISP_2401_MAMOIADA)
+#define IS_ISP_2401_MAMOIADA
+
+#include "isp2401_mamoiada_params.h"
+#elif defined (HAS_ISP_2400_MAMOIADA)
+#define IS_ISP_2400_MAMOIADA
+
+#include "isp2400_mamoiada_params.h"
+#else
+#error "isp_global_h: ISP_2400_MAMOIDA must be one of {2400, 2401 }"
+#endif
+
+#define ISP_PMEM_WIDTH_LOG2		ISP_LOG2_PMEM_WIDTH
+#define ISP_PMEM_SIZE			ISP_PMEM_DEPTH
+
+#define ISP_NWAY_LOG2			6
+#define ISP_VEC_NELEMS_LOG2		ISP_NWAY_LOG2
+
+#ifdef ISP2401
+#ifdef PIPE_GENERATION
+#define PIPEMEM(x) MEM(x)
+#define ISP_NWAY   (1<<ISP_NWAY_LOG2)
+#else
+#define PIPEMEM(x)
+#endif
+
+#endif
+/* The number of data bytes in a vector disregarding the reduced precision */
+#define ISP_VEC_BYTES			(ISP_VEC_NELEMS*sizeof(uint16_t))
+
+/* ISP SC Registers */
+#define ISP_SC_REG			0x00
+#define ISP_PC_REG			0x07
+#define ISP_IRQ_READY_REG		0x00
+#define ISP_IRQ_CLEAR_REG		0x00
+
+/* ISP SC Register bits */
+#define ISP_RST_BIT			0x00
+#define ISP_START_BIT			0x01
+#define ISP_BREAK_BIT			0x02
+#define ISP_RUN_BIT			0x03
+#define ISP_BROKEN_BIT			0x04
+#define ISP_IDLE_BIT			0x05     /* READY */
+#define ISP_SLEEPING_BIT		0x06
+#define ISP_STALLING_BIT		0x07
+#define ISP_IRQ_CLEAR_BIT		0x08
+#define ISP_IRQ_READY_BIT		0x0A
+#define ISP_IRQ_SLEEPING_BIT		0x0B
+
+/* ISP Register bits */
+#define ISP_CTRL_SINK_BIT		0x00
+#define ISP_PMEM_SINK_BIT		0x01
+#define ISP_DMEM_SINK_BIT		0x02
+#define ISP_FIFO0_SINK_BIT		0x03
+#define ISP_FIFO1_SINK_BIT		0x04
+#define ISP_FIFO2_SINK_BIT		0x05
+#define ISP_FIFO3_SINK_BIT		0x06
+#define ISP_FIFO4_SINK_BIT		0x07
+#define ISP_FIFO5_SINK_BIT		0x08
+#define ISP_FIFO6_SINK_BIT		0x09
+#define ISP_VMEM_SINK_BIT		0x0A
+#define ISP_VAMEM1_SINK_BIT		0x0B
+#define ISP_VAMEM2_SINK_BIT		0x0C
+#define ISP_VAMEM3_SINK_BIT		0x0D
+#define ISP_HMEM_SINK_BIT		0x0E
+
+#define ISP_CTRL_SINK_REG		0x08
+#define ISP_PMEM_SINK_REG		0x08
+#define ISP_DMEM_SINK_REG		0x08
+#define ISP_FIFO0_SINK_REG		0x08
+#define ISP_FIFO1_SINK_REG		0x08
+#define ISP_FIFO2_SINK_REG		0x08
+#define ISP_FIFO3_SINK_REG		0x08
+#define ISP_FIFO4_SINK_REG		0x08
+#define ISP_FIFO5_SINK_REG		0x08
+#define ISP_FIFO6_SINK_REG		0x08
+#define ISP_VMEM_SINK_REG		0x08
+#define ISP_VAMEM1_SINK_REG		0x08
+#define ISP_VAMEM2_SINK_REG		0x08
+#define ISP_VAMEM3_SINK_REG		0x08
+#define ISP_HMEM_SINK_REG		0x08
+
+#ifdef ISP2401
+#define ISP_BAMEM_ALIGN_ELEM ISP_VMEM_ALIGN_ELEM
+#define BAMEM VMEM
+
+#define XNR3_DOWN_BAMEM_BASE_ADDRESS    (0x16880)
+#define XNR3_UP_BAMEM_BASE_ADDRESS      (0x12880)
+
+#define bmem_ldrow(fu, pid, offset, data) bmem_ldrow_s(fu, pid, offset, data)
+#define bmem_strow(fu, pid, offset, data) bmem_strow_s(fu, pid, offset, data)
+#define bmem_ldblk(fu, pid, offset, data) bmem_ldblk_s(fu, pid, offset, data)
+#define bmem_stblk(fu, pid, offset, data) bmem_stblk_s(fu, pid, offset, data)
+
+#endif
+#endif /* __ISP_GLOBAL_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/mmu_global.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/mmu_global.h
new file mode 100644
index 0000000..83ca418
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/mmu_global.h
@@ -0,0 +1,22 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __MMU_GLOBAL_H_INCLUDED__
+#define __MMU_GLOBAL_H_INCLUDED__
+
+#define IS_MMU_VERSION_2
+
+#include <mmu_defs.h>
+
+#endif /* __MMU_GLOBAL_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/resource_global.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/resource_global.h
new file mode 100644
index 0000000..01c915c
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/resource_global.h
@@ -0,0 +1,35 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __RESOURCE_GLOBAL_H_INCLUDED__
+#define __RESOURCE_GLOBAL_H_INCLUDED__
+
+#define IS_RESOURCE_VERSION_1
+
+typedef enum {
+	DMA_CHANNEL_RESOURCE_TYPE,
+	IRQ_CHANNEL_RESOURCE_TYPE,
+	MEM_SECTION_RESOURCE_TYPE,
+	N_RESOURCE_TYPE
+} resource_type_ID_t;
+
+typedef enum {
+	PERMANENT_RESOURCE_RESERVATION,
+	PERSISTENT_RESOURCE_RESERVATION,
+	DEDICTATED_RESOURCE_RESERVATION,
+	SHARED_RESOURCE_RESERVATION,
+	N_RESOURCE_RESERVATION
+} resource_reservation_t;
+
+#endif /* __RESOURCE_GLOBAL_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/sp_global.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/sp_global.h
new file mode 100644
index 0000000..6ec4e59
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/sp_global.h
@@ -0,0 +1,93 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __SP_GLOBAL_H_INCLUDED__
+#define __SP_GLOBAL_H_INCLUDED__
+
+#include <system_types.h>
+
+#if defined(HAS_SP_2401)
+#define IS_SP_2401
+/* 2401 uses 2400 */
+#include <scalar_processor_2400_params.h>
+#elif defined(HAS_SP_2400)
+#define IS_SP_2400
+
+#include <scalar_processor_2400_params.h>
+#else
+#error "sp_global.h: SP_2400 must be one of {2400, 2401 }"
+#endif
+
+#define SP_PMEM_WIDTH_LOG2		SP_PMEM_LOG_WIDTH_BITS
+#define SP_PMEM_SIZE			SP_PMEM_DEPTH
+
+#define SP_DMEM_SIZE			0x4000
+
+/* SP Registers */
+#define SP_PC_REG				0x09
+#define SP_SC_REG				0x00
+#define SP_START_ADDR_REG		0x01
+#define SP_ICACHE_ADDR_REG		0x05
+#define SP_IRQ_READY_REG		0x00
+#define SP_IRQ_CLEAR_REG		0x00
+#define SP_ICACHE_INV_REG		0x00
+#define SP_CTRL_SINK_REG		0x0A
+
+/* SP Register bits */
+#define SP_RST_BIT			0x00
+#define SP_START_BIT			0x01
+#define SP_BREAK_BIT			0x02
+#define SP_RUN_BIT			0x03
+#define SP_BROKEN_BIT			0x04
+#define SP_IDLE_BIT			0x05     /* READY */
+#define SP_SLEEPING_BIT			0x06
+#define SP_STALLING_BIT			0x07
+#define SP_IRQ_CLEAR_BIT		0x08
+#define SP_IRQ_READY_BIT		0x0A
+#define SP_IRQ_SLEEPING_BIT		0x0B
+
+#define SP_ICACHE_INV_BIT		0x0C
+#define SP_IPREFETCH_EN_BIT		0x0D
+
+#define SP_FIFO0_SINK_BIT		0x00
+#define SP_FIFO1_SINK_BIT		0x01
+#define SP_FIFO2_SINK_BIT		0x02
+#define SP_FIFO3_SINK_BIT		0x03
+#define SP_FIFO4_SINK_BIT		0x04
+#define SP_FIFO5_SINK_BIT		0x05
+#define SP_FIFO6_SINK_BIT		0x06
+#define SP_FIFO7_SINK_BIT		0x07
+#define SP_FIFO8_SINK_BIT		0x08
+#define SP_FIFO9_SINK_BIT		0x09
+#define SP_FIFOA_SINK_BIT		0x0A
+#define SP_DMEM_SINK_BIT		0x0B
+#define SP_CTRL_MT_SINK_BIT		0x0C
+#define SP_ICACHE_MT_SINK_BIT	0x0D
+
+#define SP_FIFO0_SINK_REG		0x0A
+#define SP_FIFO1_SINK_REG		0x0A
+#define SP_FIFO2_SINK_REG		0x0A
+#define SP_FIFO3_SINK_REG		0x0A
+#define SP_FIFO4_SINK_REG		0x0A
+#define SP_FIFO5_SINK_REG		0x0A
+#define SP_FIFO6_SINK_REG		0x0A
+#define SP_FIFO7_SINK_REG		0x0A
+#define SP_FIFO8_SINK_REG		0x0A
+#define SP_FIFO9_SINK_REG		0x0A
+#define SP_FIFOA_SINK_REG		0x0A
+#define SP_DMEM_SINK_REG		0x0A
+#define SP_CTRL_MT_SINK_REG		0x0A
+#define SP_ICACHE_MT_SINK_REG	0x0A
+
+#endif /* __SP_GLOBAL_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/system_global.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/system_global.h
new file mode 100644
index 0000000..d803efd
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/system_global.h
@@ -0,0 +1,348 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __SYSTEM_GLOBAL_H_INCLUDED__
+#define __SYSTEM_GLOBAL_H_INCLUDED__
+
+#include <hive_isp_css_defs.h>
+#include <type_support.h>
+
+/*
+ * The longest allowed (uninteruptible) bus transfer, does not
+ * take stalling into account
+ */
+#define HIVE_ISP_MAX_BURST_LENGTH	1024
+
+/*
+ * Maximum allowed burst length in words for the ISP DMA
+ */
+#define ISP_DMA_MAX_BURST_LENGTH	128
+
+/*
+ * Create a list of HAS and IS properties that defines the system
+ *
+ * The configuration assumes the following
+ * - The system is hetereogeneous; Multiple cells and devices classes
+ * - The cell and device instances are homogeneous, each device type
+ *   belongs to the same class
+ * - Device instances supporting a subset of the class capabilities are
+ *   allowed
+ *
+ * We could manage different device classes through the enumerated
+ * lists (C) or the use of classes (C++), but that is presently not
+ * fully supported
+ *
+ * N.B. the 3 input formatters are of 2 different classess
+ */
+
+#define IS_ISP_2400_SYSTEM
+/*
+ * Since this file is visible everywhere and the system definition
+ * macros are not, detect the separate definitions for {host, SP, ISP}
+ *
+ * The 2401 system has the nice property that it uses a vanilla 2400 SP
+ * so the SP will believe it is a 2400 system rather than 2401...
+ */
+//#if defined(SYSTEM_hive_isp_css_2401_system) || defined(__isp2401_mamoiada) || defined(__scalar_processor_2401)
+#if defined(SYSTEM_hive_isp_css_2401_system) || defined(__isp2401_mamoiada)
+#define IS_ISP_2401_MAMOIADA_SYSTEM
+#define HAS_ISP_2401_MAMOIADA
+#define HAS_SP_2400
+//#elif defined(SYSTEM_hive_isp_css_2400_system) || defined(__isp2400_mamoiada) || defined(__scalar_processor_2400)
+#elif defined(SYSTEM_hive_isp_css_2400_system) || defined(__isp2400_mamoiada)
+#define IS_ISP_2400_MAMOIADA_SYSTEM
+#define HAS_ISP_2400_MAMOIADA
+#define HAS_SP_2400
+#else
+#error "system_global.h: 2400_SYSTEM must be one of {2400, 2401 }"
+#endif
+
+#define USE_INPUT_SYSTEM_VERSION_2
+
+#define HAS_MMU_VERSION_2
+#define HAS_DMA_VERSION_2
+#define HAS_GDC_VERSION_2
+#define HAS_VAMEM_VERSION_2
+#define HAS_HMEM_VERSION_1
+#define HAS_BAMEM_VERSION_2
+#define HAS_IRQ_VERSION_2
+#define HAS_IRQ_MAP_VERSION_2
+#define HAS_INPUT_FORMATTER_VERSION_2
+/* 2401: HAS_INPUT_SYSTEM_VERSION_2401 */
+#define HAS_INPUT_SYSTEM_VERSION_2
+#define HAS_BUFFERED_SENSOR
+#define HAS_FIFO_MONITORS_VERSION_2
+/* #define HAS_GP_REGS_VERSION_2 */
+#define HAS_GP_DEVICE_VERSION_2
+#define HAS_GPIO_VERSION_1
+#define HAS_TIMED_CTRL_VERSION_1
+#define HAS_RX_VERSION_2
+
+#define DMA_DDR_TO_VAMEM_WORKAROUND
+#define DMA_DDR_TO_HMEM_WORKAROUND
+
+/*
+ * Semi global. "HRT" is accessible from SP, but the HRT types do not fully apply
+ */
+#define HRT_VADDRESS_WIDTH	32
+//#define HRT_ADDRESS_WIDTH	64		/* Surprise, this is a local property*/
+#define HRT_DATA_WIDTH		32
+
+#define SIZEOF_HRT_REG		(HRT_DATA_WIDTH>>3)
+#define HIVE_ISP_CTRL_DATA_BYTES (HIVE_ISP_CTRL_DATA_WIDTH/8)
+
+/* The main bus connecting all devices */
+#define HRT_BUS_WIDTH		HIVE_ISP_CTRL_DATA_WIDTH
+#define HRT_BUS_BYTES		HIVE_ISP_CTRL_DATA_BYTES
+
+/* per-frame parameter handling support */
+#define SH_CSS_ENABLE_PER_FRAME_PARAMS
+
+typedef uint32_t			hrt_bus_align_t;
+
+/*
+ * Enumerate the devices, device access through the API is by ID, through the DLI by address
+ * The enumerator terminators are used to size the wiring arrays and as an exception value.
+ */
+typedef enum {
+	DDR0_ID = 0,
+	N_DDR_ID
+} ddr_ID_t;
+
+typedef enum {
+	ISP0_ID = 0,
+	N_ISP_ID
+} isp_ID_t;
+
+typedef enum {
+	SP0_ID = 0,
+	N_SP_ID
+} sp_ID_t;
+
+#if defined (IS_ISP_2401_MAMOIADA_SYSTEM)
+typedef enum {
+	MMU0_ID = 0,
+	MMU1_ID,
+	N_MMU_ID
+} mmu_ID_t;
+#elif defined (IS_ISP_2400_MAMOIADA_SYSTEM)
+typedef enum {
+	MMU0_ID = 0,
+	MMU1_ID,
+	N_MMU_ID
+} mmu_ID_t;
+#else
+#error "system_global.h: SYSTEM must be one of {2400, 2401}"
+#endif
+
+typedef enum {
+	DMA0_ID = 0,
+	N_DMA_ID
+} dma_ID_t;
+
+typedef enum {
+	GDC0_ID = 0,
+	GDC1_ID,
+	N_GDC_ID
+} gdc_ID_t;
+
+#define N_GDC_ID_CPP 2 // this extra define is needed because we want to use it also in the preprocessor, and that doesn't work with enums.
+
+typedef enum {
+	VAMEM0_ID = 0,
+	VAMEM1_ID,
+	VAMEM2_ID,
+	N_VAMEM_ID
+} vamem_ID_t;
+
+typedef enum {
+	BAMEM0_ID = 0,
+	N_BAMEM_ID
+} bamem_ID_t;
+
+typedef enum {
+	HMEM0_ID = 0,
+	N_HMEM_ID
+} hmem_ID_t;
+
+/*
+typedef enum {
+	IRQ0_ID = 0,
+	N_IRQ_ID
+} irq_ID_t;
+*/
+
+typedef enum {
+	IRQ0_ID = 0,	// GP IRQ block
+	IRQ1_ID,		// Input formatter
+	IRQ2_ID,		// input system
+	IRQ3_ID,		// input selector
+	N_IRQ_ID
+} irq_ID_t;
+
+typedef enum {
+	FIFO_MONITOR0_ID = 0,
+	N_FIFO_MONITOR_ID
+} fifo_monitor_ID_t;
+
+/*
+ * Deprecated: Since all gp_reg instances are different
+ * and put in the address maps of other devices we cannot
+ * enumerate them as that assumes the instrances are the
+ * same.
+ *
+ * We define a single GP_DEVICE containing all gp_regs
+ * w.r.t. a single base address
+ *
+typedef enum {
+	GP_REGS0_ID = 0,
+	N_GP_REGS_ID
+} gp_regs_ID_t;
+ */
+typedef enum {
+	GP_DEVICE0_ID = 0,
+	N_GP_DEVICE_ID
+} gp_device_ID_t;
+
+typedef enum {
+	GP_TIMER0_ID = 0,
+	GP_TIMER1_ID,
+	GP_TIMER2_ID,
+	GP_TIMER3_ID,
+	GP_TIMER4_ID,
+	GP_TIMER5_ID,
+	GP_TIMER6_ID,
+	GP_TIMER7_ID,
+	N_GP_TIMER_ID
+} gp_timer_ID_t;
+
+typedef enum {
+	GPIO0_ID = 0,
+	N_GPIO_ID
+} gpio_ID_t;
+
+typedef enum {
+	TIMED_CTRL0_ID = 0,
+	N_TIMED_CTRL_ID
+} timed_ctrl_ID_t;
+
+typedef enum {
+	INPUT_FORMATTER0_ID = 0,
+	INPUT_FORMATTER1_ID,
+	INPUT_FORMATTER2_ID,
+	INPUT_FORMATTER3_ID,
+	N_INPUT_FORMATTER_ID
+} input_formatter_ID_t;
+
+/* The IF RST is outside the IF */
+#define INPUT_FORMATTER0_SRST_OFFSET	0x0824
+#define INPUT_FORMATTER1_SRST_OFFSET	0x0624
+#define INPUT_FORMATTER2_SRST_OFFSET	0x0424
+#define INPUT_FORMATTER3_SRST_OFFSET	0x0224
+
+#define INPUT_FORMATTER0_SRST_MASK		0x0001
+#define INPUT_FORMATTER1_SRST_MASK		0x0002
+#define INPUT_FORMATTER2_SRST_MASK		0x0004
+#define INPUT_FORMATTER3_SRST_MASK		0x0008
+
+typedef enum {
+	INPUT_SYSTEM0_ID = 0,
+	N_INPUT_SYSTEM_ID
+} input_system_ID_t;
+
+typedef enum {
+	RX0_ID = 0,
+	N_RX_ID
+} rx_ID_t;
+
+typedef enum {
+	MIPI_PORT0_ID = 0,
+	MIPI_PORT1_ID,
+	MIPI_PORT2_ID,
+	N_MIPI_PORT_ID
+} mipi_port_ID_t;
+
+#define	N_RX_CHANNEL_ID		4
+
+/* Generic port enumeration with an internal port type ID */
+typedef enum {
+	CSI_PORT0_ID = 0,
+	CSI_PORT1_ID,
+	CSI_PORT2_ID,
+	TPG_PORT0_ID,
+	PRBS_PORT0_ID,
+	FIFO_PORT0_ID,
+	MEMORY_PORT0_ID,
+	N_INPUT_PORT_ID
+} input_port_ID_t;
+
+typedef enum {
+	CAPTURE_UNIT0_ID = 0,
+	CAPTURE_UNIT1_ID,
+	CAPTURE_UNIT2_ID,
+	ACQUISITION_UNIT0_ID,
+	DMA_UNIT0_ID,
+	CTRL_UNIT0_ID,
+	GPREGS_UNIT0_ID,
+	FIFO_UNIT0_ID,
+	IRQ_UNIT0_ID,
+	N_SUB_SYSTEM_ID
+} sub_system_ID_t;
+
+#define	N_CAPTURE_UNIT_ID		3
+#define	N_ACQUISITION_UNIT_ID	1
+#define	N_CTRL_UNIT_ID			1
+
+enum ia_css_isp_memories {
+	IA_CSS_ISP_PMEM0 = 0,
+	IA_CSS_ISP_DMEM0,
+	IA_CSS_ISP_VMEM0,
+	IA_CSS_ISP_VAMEM0,
+	IA_CSS_ISP_VAMEM1,
+	IA_CSS_ISP_VAMEM2,
+	IA_CSS_ISP_HMEM0,
+	IA_CSS_SP_DMEM0,
+	IA_CSS_DDR,
+	N_IA_CSS_MEMORIES
+};
+#define IA_CSS_NUM_MEMORIES 9
+/* For driver compatability */
+#define N_IA_CSS_ISP_MEMORIES   IA_CSS_NUM_MEMORIES
+#define IA_CSS_NUM_ISP_MEMORIES IA_CSS_NUM_MEMORIES
+
+#if 0
+typedef enum {
+	dev_chn, /* device channels, external resource */
+	ext_mem, /* external memories */
+	int_mem, /* internal memories */
+	int_chn  /* internal channels, user defined */
+} resource_type_t;
+
+/* if this enum is extended with other memory resources, pls also extend the function resource_to_memptr() */
+typedef enum {
+	vied_nci_dev_chn_dma_ext0,
+	int_mem_vmem0,
+	int_mem_dmem0
+} resource_id_t;
+
+/* enum listing the different memories within a program group.
+   This enum is used in the mem_ptr_t type */
+typedef enum {
+	buf_mem_invalid = 0,
+	buf_mem_vmem_prog0,
+	buf_mem_dmem_prog0
+} buf_mem_t;
+
+#endif
+#endif /* __SYSTEM_GLOBAL_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/timed_ctrl_global.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/timed_ctrl_global.h
new file mode 100644
index 0000000..c3e8a01
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/timed_ctrl_global.h
@@ -0,0 +1,56 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __TIMED_CTRL_GLOBAL_H_INCLUDED__
+#define __TIMED_CTRL_GLOBAL_H_INCLUDED__
+
+#define IS_TIMED_CTRL_VERSION_1
+
+#include <timed_controller_defs.h>
+
+/**
+ * Order of the input bits for the timed controller taken from
+ * ISP_CSS_2401 System Architecture Description valid for
+ * 2400, 2401.
+ *
+ * Check for other systems.
+ */
+#define HIVE_TIMED_CTRL_GPIO_PIN_0_BIT_ID                       0
+#define HIVE_TIMED_CTRL_GPIO_PIN_1_BIT_ID                       1
+#define HIVE_TIMED_CTRL_GPIO_PIN_2_BIT_ID                       2
+#define HIVE_TIMED_CTRL_GPIO_PIN_3_BIT_ID                       3
+#define HIVE_TIMED_CTRL_GPIO_PIN_4_BIT_ID                       4
+#define HIVE_TIMED_CTRL_GPIO_PIN_5_BIT_ID                       5
+#define HIVE_TIMED_CTRL_GPIO_PIN_6_BIT_ID                       6
+#define HIVE_TIMED_CTRL_GPIO_PIN_7_BIT_ID                       7
+#define HIVE_TIMED_CTRL_GPIO_PIN_8_BIT_ID                       8
+#define HIVE_TIMED_CTRL_GPIO_PIN_9_BIT_ID                       9
+#define HIVE_TIMED_CTRL_GPIO_PIN_10_BIT_ID                      10
+#define HIVE_TIMED_CTRL_GPIO_PIN_11_BIT_ID                      11
+#define HIVE_TIMED_CTRL_IRQ_SP_BIT_ID                           12
+#define HIVE_TIMED_CTRL_IRQ_ISP_BIT_ID                          13
+#define HIVE_TIMED_CTRL_IRQ_INPUT_SYSTEM_BIT_ID                 14
+#define HIVE_TIMED_CTRL_IRQ_INPUT_SELECTOR_BIT_ID               15
+#define HIVE_TIMED_CTRL_IRQ_IF_BLOCK_BIT_ID                     16
+#define HIVE_TIMED_CTRL_IRQ_GP_TIMER_0_BIT_ID                   17
+#define HIVE_TIMED_CTRL_IRQ_GP_TIMER_1_BIT_ID                   18
+#define HIVE_TIMED_CTRL_CSI_SOL_BIT_ID                          19
+#define HIVE_TIMED_CTRL_CSI_EOL_BIT_ID                          20
+#define HIVE_TIMED_CTRL_CSI_SOF_BIT_ID                          21
+#define HIVE_TIMED_CTRL_CSI_EOF_BIT_ID                          22
+#define HIVE_TIMED_CTRL_IRQ_IS_STREAMING_MONITOR_BIT_ID         23
+
+
+
+#endif /* __TIMED_CTRL_GLOBAL_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/vamem_global.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/vamem_global.h
new file mode 100644
index 0000000..58713c6
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/vamem_global.h
@@ -0,0 +1,34 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __VAMEM_GLOBAL_H_INCLUDED__
+#define __VAMEM_GLOBAL_H_INCLUDED__
+
+#include <type_support.h>
+
+#define IS_VAMEM_VERSION_2
+
+/* (log) stepsize of linear interpolation */
+#define VAMEM_INTERP_STEP_LOG2	4
+#define VAMEM_INTERP_STEP		(1<<VAMEM_INTERP_STEP_LOG2)
+/* (physical) size of the tables */
+#define VAMEM_TABLE_UNIT_SIZE	((1<<(ISP_VAMEM_ADDRESS_BITS-VAMEM_INTERP_STEP_LOG2)) + 1)
+/* (logical) size of the tables */
+#define VAMEM_TABLE_UNIT_STEP	((VAMEM_TABLE_UNIT_SIZE-1)<<1)
+/* Number of tables */
+#define VAMEM_TABLE_UNIT_COUNT	(ISP_VAMEM_DEPTH/VAMEM_TABLE_UNIT_STEP)
+
+typedef uint16_t				vamem_data_t;
+
+#endif /* __VAMEM_GLOBAL_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/vmem_global.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/vmem_global.h
new file mode 100644
index 0000000..5223a6e
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/vmem_global.h
@@ -0,0 +1,32 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __VMEM_GLOBAL_H_INCLUDED__
+#define __VMEM_GLOBAL_H_INCLUDED__
+
+#include "isp.h"
+
+#define VMEM_SIZE	ISP_VMEM_DEPTH
+#define VMEM_ELEMBITS	ISP_VMEM_ELEMBITS
+#ifdef C_RUN
+#define VMEM_ALIGN	1
+#else
+#define VMEM_ALIGN	ISP_VMEM_ALIGN
+#endif
+
+#ifndef PIPE_GENERATION
+typedef tvector *pvector;
+#endif
+
+#endif /* __VMEM_GLOBAL_H_INCLUDED__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/xmem_global.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/xmem_global.h
new file mode 100644
index 0000000..1d3a43a
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/xmem_global.h
@@ -0,0 +1,20 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __XMEM_GLOBAL_H_INCLUDED__
+#define __XMEM_GLOBAL_H_INCLUDED__
+
+#include "isp.h"
+
+#endif /* __XMEM_GLOBAL_H_INCLUDED__ */