diff options
Diffstat (limited to 'drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/dma_global.h')
| -rw-r--r-- | drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/dma_global.h | 255 |
1 files changed, 255 insertions, 0 deletions
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..60d6de1 --- /dev/null +++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/dma_global.h @@ -0,0 +1,255 @@ +/* + * 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)) + +#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); \ +} + +#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) \ +} + +#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); \ +} + +#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); \ +} + +#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); \ + } \ +} + +#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__ */ |
