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>

1 files changed, 282 insertions, 0 deletions

diff --git a/drivers/staging/media/atomisp/pci/atomisp2/atomisp_compat_css20.h b/drivers/staging/media/atomisp/pci/atomisp2/atomisp_compat_css20.h
new file mode 100644
index 000000000000..b62ad9082018
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/atomisp_compat_css20.h
@@ -0,0 +1,282 @@
+/*
+ * Support for Clovertrail PNW Camera Imaging ISP subsystem.
+ *
+ * Copyright (c) 2013 Intel Corporation. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ *
+ */
+
+#ifndef __ATOMISP_COMPAT_CSS20_H__
+#define __ATOMISP_COMPAT_CSS20_H__
+
+#include <media/v4l2-mediabus.h>
+
+#include "ia_css.h"
+#include "ia_css_types.h"
+#include "ia_css_acc_types.h"
+#include "sh_css_legacy.h"
+
+#define ATOMISP_CSS2_PIPE_MAX	2
+#define ATOMISP_CSS2_NUM_OFFLINE_INIT_CONTINUOUS_FRAMES     3
+#define ATOMISP_CSS2_NUM_OFFLINE_INIT_CONTINUOUS_FRAMES_LOCK_EN     4
+#define ATOMISP_CSS2_NUM_DVS_FRAME_DELAY     2
+
+#define atomisp_css_pipe_id ia_css_pipe_id
+#define atomisp_css_pipeline	ia_css_pipe
+#define atomisp_css_buffer_type ia_css_buffer_type
+#define atomisp_css_dis_data ia_css_isp_dvs_statistics
+#define atomisp_css_irq_info  ia_css_irq_info
+#define atomisp_css_isp_config ia_css_isp_config
+#define atomisp_css_bayer_order ia_css_bayer_order
+#define atomisp_css_stream_format ia_css_stream_format
+#define atomisp_css_capture_mode ia_css_capture_mode
+#define atomisp_css_input_mode ia_css_input_mode
+#define atomisp_css_frame ia_css_frame
+#define atomisp_css_frame_format ia_css_frame_format
+#define atomisp_css_frame_info ia_css_frame_info
+#define atomisp_css_dp_config	ia_css_dp_config
+#define atomisp_css_wb_config	ia_css_wb_config
+#define atomisp_css_cc_config	ia_css_cc_config
+#define atomisp_css_nr_config	ia_css_nr_config
+#define atomisp_css_ee_config	ia_css_ee_config
+#define atomisp_css_ob_config	ia_css_ob_config
+#define atomisp_css_de_config	ia_css_de_config
+#define atomisp_css_dz_config	ia_css_dz_config
+#define atomisp_css_ce_config	ia_css_ce_config
+#define atomisp_css_gc_config	ia_css_gc_config
+#define atomisp_css_tnr_config	ia_css_tnr_config
+#define atomisp_css_cnr_config	ia_css_cnr_config
+#define atomisp_css_ctc_config	ia_css_ctc_config
+#define atomisp_css_3a_config	ia_css_3a_config
+#define atomisp_css_ecd_config	ia_css_ecd_config
+#define atomisp_css_ynr_config	ia_css_ynr_config
+#define atomisp_css_fc_config	ia_css_fc_config
+#define atomisp_css_aa_config	ia_css_aa_config
+#define atomisp_css_baa_config	ia_css_aa_config
+#define atomisp_css_anr_config	ia_css_anr_config
+#define atomisp_css_xnr_config	ia_css_xnr_config
+#define atomisp_css_macc_config	ia_css_macc_config
+#define atomisp_css_gamma_table	ia_css_gamma_table
+#define atomisp_css_ctc_table	ia_css_ctc_table
+#define atomisp_css_macc_table	ia_css_macc_table
+#define atomisp_css_xnr_table	ia_css_xnr_table
+#define atomisp_css_rgb_gamma_table	ia_css_rgb_gamma_table
+#define atomisp_css_anr_thres	ia_css_anr_thres
+#define atomisp_css_dvs_6axis	ia_css_dvs_6axis_config
+#define atomisp_css_grid_info	ia_css_grid_info
+#define atomisp_css_3a_grid_info	ia_css_3a_grid_info
+#define atomisp_css_dvs_grid_info	ia_css_dvs_grid_info
+#define atomisp_css_shading_table	ia_css_shading_table
+#define atomisp_css_morph_table	ia_css_morph_table
+#define atomisp_css_dvs_6axis_config	ia_css_dvs_6axis_config
+#define atomisp_css_fw_info	ia_css_fw_info
+#define atomisp_css_formats_config	ia_css_formats_config
+
+#define CSS_PIPE_ID_PREVIEW	IA_CSS_PIPE_ID_PREVIEW
+#define CSS_PIPE_ID_COPY	IA_CSS_PIPE_ID_COPY
+#define CSS_PIPE_ID_VIDEO	IA_CSS_PIPE_ID_VIDEO
+#define CSS_PIPE_ID_CAPTURE	IA_CSS_PIPE_ID_CAPTURE
+#define CSS_PIPE_ID_ACC		IA_CSS_PIPE_ID_ACC
+#define CSS_PIPE_ID_YUVPP	IA_CSS_PIPE_ID_YUVPP
+#define CSS_PIPE_ID_NUM		IA_CSS_PIPE_ID_NUM
+
+#define CSS_INPUT_MODE_SENSOR	IA_CSS_INPUT_MODE_BUFFERED_SENSOR
+#define CSS_INPUT_MODE_FIFO	IA_CSS_INPUT_MODE_FIFO
+#define CSS_INPUT_MODE_TPG	IA_CSS_INPUT_MODE_TPG
+#define CSS_INPUT_MODE_PRBS	IA_CSS_INPUT_MODE_PRBS
+#define CSS_INPUT_MODE_MEMORY	IA_CSS_INPUT_MODE_MEMORY
+
+#define CSS_IRQ_INFO_CSS_RECEIVER_ERROR	IA_CSS_IRQ_INFO_CSS_RECEIVER_ERROR
+#define CSS_IRQ_INFO_EVENTS_READY	IA_CSS_IRQ_INFO_EVENTS_READY
+#define CSS_IRQ_INFO_INPUT_SYSTEM_ERROR \
+	IA_CSS_IRQ_INFO_INPUT_SYSTEM_ERROR
+#define CSS_IRQ_INFO_IF_ERROR	IA_CSS_IRQ_INFO_IF_ERROR
+
+#define CSS_BUFFER_TYPE_NUM	IA_CSS_BUFFER_TYPE_NUM
+
+#define CSS_FRAME_FLASH_STATE_NONE	IA_CSS_FRAME_FLASH_STATE_NONE
+#define CSS_FRAME_FLASH_STATE_PARTIAL	IA_CSS_FRAME_FLASH_STATE_PARTIAL
+#define CSS_FRAME_FLASH_STATE_FULL	IA_CSS_FRAME_FLASH_STATE_FULL
+
+#define CSS_BAYER_ORDER_GRBG	IA_CSS_BAYER_ORDER_GRBG
+#define CSS_BAYER_ORDER_RGGB	IA_CSS_BAYER_ORDER_RGGB
+#define CSS_BAYER_ORDER_BGGR	IA_CSS_BAYER_ORDER_BGGR
+#define CSS_BAYER_ORDER_GBRG	IA_CSS_BAYER_ORDER_GBRG
+
+/*
+ * Hide IA_ naming difference in otherwise common CSS macros.
+ */
+#define CSS_ID(val)	(IA_ ## val)
+#define CSS_EVENT(val)	(IA_CSS_EVENT_TYPE_ ## val)
+#define CSS_FORMAT(val)	(IA_CSS_STREAM_FORMAT_ ## val)
+
+#define CSS_EVENT_PORT_EOF	CSS_EVENT(PORT_EOF)
+#define CSS_EVENT_FRAME_TAGGED	CSS_EVENT(FRAME_TAGGED)
+
+#define CSS_MIPI_FRAME_BUFFER_SIZE_1	0x60000
+#define CSS_MIPI_FRAME_BUFFER_SIZE_2	0x80000
+
+struct atomisp_device;
+struct atomisp_sub_device;
+
+#define MAX_STREAMS_PER_CHANNEL	2
+
+/*
+ * These are used to indicate the css stream state, corresponding
+ * stream handling can be done via judging the different state.
+ */
+enum atomisp_css_stream_state {
+	CSS_STREAM_UNINIT,
+	CSS_STREAM_CREATED,
+	CSS_STREAM_STARTED,
+	CSS_STREAM_STOPPED,
+};
+
+/*
+ *  Sensor of external ISP can send multiple steams with different mipi data
+ * type in the same virtual channel. This information needs to come from the
+ * sensor or external ISP
+ */
+struct atomisp_css_isys_config_info {
+	unsigned int input_format;
+	unsigned int width;
+	unsigned int height;
+};
+
+struct atomisp_stream_env {
+	struct ia_css_stream *stream;
+	struct ia_css_stream_config stream_config;
+	struct ia_css_stream_info stream_info;
+	struct ia_css_pipe *pipes[IA_CSS_PIPE_ID_NUM];
+	struct ia_css_pipe *multi_pipes[IA_CSS_PIPE_ID_NUM];
+	struct ia_css_pipe_config pipe_configs[IA_CSS_PIPE_ID_NUM];
+	struct ia_css_pipe_extra_config pipe_extra_configs[IA_CSS_PIPE_ID_NUM];
+	bool update_pipe[IA_CSS_PIPE_ID_NUM];
+	enum atomisp_css_stream_state stream_state;
+	struct ia_css_stream *acc_stream;
+	enum atomisp_css_stream_state acc_stream_state;
+	struct ia_css_stream_config acc_stream_config;
+	unsigned int ch_id; /* virtual channel ID */
+	unsigned int isys_configs;
+	struct atomisp_css_isys_config_info isys_info[MAX_STREAMS_PER_CHANNEL];
+};
+
+struct atomisp_css_env {
+	struct ia_css_env isp_css_env;
+	struct ia_css_fw isp_css_fw;
+};
+
+struct atomisp_s3a_buf {
+	struct ia_css_isp_3a_statistics *s3a_data;
+	struct ia_css_isp_3a_statistics_map *s3a_map;
+	struct list_head list;
+};
+
+struct atomisp_dis_buf {
+	struct atomisp_css_dis_data *dis_data;
+	struct ia_css_isp_dvs_statistics_map *dvs_map;
+	struct list_head list;
+};
+
+struct atomisp_css_buffer {
+	struct ia_css_buffer css_buffer;
+};
+
+struct atomisp_css_event {
+	enum atomisp_css_pipe_id pipe;
+	struct ia_css_event event;
+};
+
+void atomisp_css_set_macc_config(struct atomisp_sub_device *asd,
+			struct atomisp_css_macc_config *macc_config);
+
+void atomisp_css_set_ecd_config(struct atomisp_sub_device *asd,
+			struct atomisp_css_ecd_config *ecd_config);
+
+void atomisp_css_set_ynr_config(struct atomisp_sub_device *asd,
+			struct atomisp_css_ynr_config *ynr_config);
+
+void atomisp_css_set_fc_config(struct atomisp_sub_device *asd,
+			struct atomisp_css_fc_config *fc_config);
+
+void atomisp_css_set_aa_config(struct atomisp_sub_device *asd,
+			struct atomisp_css_aa_config *aa_config);
+
+void atomisp_css_set_baa_config(struct atomisp_sub_device *asd,
+			struct atomisp_css_baa_config *baa_config);
+
+void atomisp_css_set_anr_config(struct atomisp_sub_device *asd,
+			struct atomisp_css_anr_config *anr_config);
+
+void atomisp_css_set_xnr_config(struct atomisp_sub_device *asd,
+			struct atomisp_css_xnr_config *xnr_config);
+
+void atomisp_css_set_cnr_config(struct atomisp_sub_device *asd,
+			struct atomisp_css_cnr_config *cnr_config);
+
+void atomisp_css_set_ctc_config(struct atomisp_sub_device *asd,
+			struct atomisp_css_ctc_config *ctc_config);
+
+void atomisp_css_set_yuv2rgb_cc_config(struct atomisp_sub_device *asd,
+			struct atomisp_css_cc_config *yuv2rgb_cc_config);
+
+void atomisp_css_set_rgb2yuv_cc_config(struct atomisp_sub_device *asd,
+			struct atomisp_css_cc_config *rgb2yuv_cc_config);
+
+void atomisp_css_set_xnr_table(struct atomisp_sub_device *asd,
+			struct atomisp_css_xnr_table *xnr_table);
+
+void atomisp_css_set_r_gamma_table(struct atomisp_sub_device *asd,
+			struct atomisp_css_rgb_gamma_table *r_gamma_table);
+
+void atomisp_css_set_g_gamma_table(struct atomisp_sub_device *asd,
+			struct atomisp_css_rgb_gamma_table *g_gamma_table);
+
+void atomisp_css_set_b_gamma_table(struct atomisp_sub_device *asd,
+			struct atomisp_css_rgb_gamma_table *b_gamma_table);
+
+void atomisp_css_set_anr_thres(struct atomisp_sub_device *asd,
+			struct atomisp_css_anr_thres *anr_thres);
+
+int atomisp_css_check_firmware_version(struct atomisp_device *isp);
+
+int atomisp_css_load_firmware(struct atomisp_device *isp);
+
+void atomisp_css_unload_firmware(struct atomisp_device *isp);
+
+void atomisp_css_set_dvs_6axis(struct atomisp_sub_device *asd,
+			struct atomisp_css_dvs_6axis *dvs_6axis);
+
+unsigned int atomisp_css_debug_get_dtrace_level(void);
+
+int atomisp_css_debug_dump_isp_binary(void);
+
+int atomisp_css_dump_sp_raw_copy_linecount(bool reduced);
+
+int atomisp_css_dump_blob_infor(void);
+
+void atomisp_css_set_isp_config_id(struct atomisp_sub_device *asd,
+			uint32_t isp_config_id);
+
+void atomisp_css_set_isp_config_applied_frame(struct atomisp_sub_device *asd,
+			struct atomisp_css_frame *output_frame);
+
+int atomisp_get_css_dbgfunc(void);
+
+int atomisp_set_css_dbgfunc(struct atomisp_device *isp, int opt);
+struct atomisp_css_dvs_grid_info *atomisp_css_get_dvs_grid_info(
+	struct atomisp_css_grid_info *grid_info);
+#endif