From a49d25364dfb9f8a64037488a39ab1f56c5fa419 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Fri, 17 Feb 2017 16:55:17 +0000 Subject: 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 Signed-off-by: Greg Kroah-Hartman --- .../host/fifo_monitor_public.h | 110 +++++++++++++++++++++ 1 file changed, 110 insertions(+) create mode 100644 drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_include/host/fifo_monitor_public.h (limited to 'drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_include/host/fifo_monitor_public.h') diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_include/host/fifo_monitor_public.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_include/host/fifo_monitor_public.h new file mode 100644 index 0000000..329f5d5 --- /dev/null +++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_include/host/fifo_monitor_public.h @@ -0,0 +1,110 @@ +/* + * 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_PUBLIC_H_INCLUDED__ +#define __FIFO_MONITOR_PUBLIC_H_INCLUDED__ + +#include "system_types.h" + +typedef struct fifo_channel_state_s fifo_channel_state_t; +typedef struct fifo_switch_state_s fifo_switch_state_t; +typedef struct fifo_monitor_state_s fifo_monitor_state_t; + +/*! Set a fifo switch multiplex + + \param ID[in] FIFO_MONITOR identifier + \param switch_id[in] fifo switch identifier + \param sel[in] fifo switch selector + + \return none, fifo_switch[switch_id].sel = sel + */ +STORAGE_CLASS_FIFO_MONITOR_H void fifo_switch_set( + const fifo_monitor_ID_t ID, + const fifo_switch_t switch_id, + const hrt_data sel); + +/*! Get a fifo switch multiplex + + \param ID[in] FIFO_MONITOR identifier + \param switch_id[in] fifo switch identifier + + \return fifo_switch[switch_id].sel + */ +STORAGE_CLASS_FIFO_MONITOR_H hrt_data fifo_switch_get( + const fifo_monitor_ID_t ID, + const fifo_switch_t switch_id); + +/*! Read the state of FIFO_MONITOR[ID] + + \param ID[in] FIFO_MONITOR identifier + \param state[out] fifo monitor state structure + + \return none, state = FIFO_MONITOR[ID].state + */ +extern void fifo_monitor_get_state( + const fifo_monitor_ID_t ID, + fifo_monitor_state_t *state); + +/*! Read the state of a fifo channel + + \param ID[in] FIFO_MONITOR identifier + \param channel_id[in] fifo channel identifier + \param state[out] fifo channel state structure + + \return none, state = fifo_channel[channel_id].state + */ +extern void fifo_channel_get_state( + const fifo_monitor_ID_t ID, + const fifo_channel_t channel_id, + fifo_channel_state_t *state); + +/*! Read the state of a fifo switch + + \param ID[in] FIFO_MONITOR identifier + \param switch_id[in] fifo switch identifier + \param state[out] fifo switch state structure + + \return none, state = fifo_switch[switch_id].state + */ +extern void fifo_switch_get_state( + const fifo_monitor_ID_t ID, + const fifo_switch_t switch_id, + fifo_switch_state_t *state); + +/*! Write to a control register of FIFO_MONITOR[ID] + + \param ID[in] FIFO_MONITOR identifier + \param reg[in] register index + \param value[in] The data to be written + + \return none, FIFO_MONITOR[ID].ctrl[reg] = value + */ +STORAGE_CLASS_FIFO_MONITOR_H void fifo_monitor_reg_store( + const fifo_monitor_ID_t ID, + const unsigned int reg, + const hrt_data value); + +/*! Read from a control register of FIFO_MONITOR[ID] + + \param ID[in] FIFO_MONITOR identifier + \param reg[in] register index + \param value[in] The data to be written + + \return FIFO_MONITOR[ID].ctrl[reg] + */ +STORAGE_CLASS_FIFO_MONITOR_H hrt_data fifo_monitor_reg_load( + const fifo_monitor_ID_t ID, + const unsigned int reg); + +#endif /* __FIFO_MONITOR_PUBLIC_H_INCLUDED__ */ -- cgit v1.1