1 files changed, 290 insertions, 0 deletions
diff --git a/drivers/media/i2c/ccs/ccs.h b/drivers/media/i2c/ccs/ccs.h
new file mode 100644
index 000000000..6beac375c
--- /dev/null
+++ b/drivers/media/i2c/ccs/ccs.h
@@ -0,0 +1,290 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * drivers/media/i2c/smiapp/ccs.h
+ *
+ * Generic driver for MIPI CCS/SMIA/SMIA++ compliant camera sensors
+ *
+ * Copyright (C) 2020 Intel Corporation
+ * Copyright (C) 2010--2012 Nokia Corporation
+ * Contact: Sakari Ailus <sakari.ailus@linux.intel.com>
+ */
+
+#ifndef __CCS_H__
+#define __CCS_H__
+
+#include <linux/mutex.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-subdev.h>
+
+#include "ccs-data.h"
+#include "ccs-limits.h"
+#include "ccs-quirk.h"
+#include "ccs-regs.h"
+#include "ccs-reg-access.h"
+#include "../ccs-pll.h"
+#include "smiapp-reg-defs.h"
+
+/*
+ * Standard SMIA++ constants
+ */
+#define SMIA_VERSION_1			10
+#define SMIAPP_VERSION_0_8		8 /* Draft 0.8 */
+#define SMIAPP_VERSION_0_9		9 /* Draft 0.9 */
+#define SMIAPP_VERSION_1		10
+
+#define SMIAPP_PROFILE_0		0
+#define SMIAPP_PROFILE_1		1
+#define SMIAPP_PROFILE_2		2
+
+#define SMIAPP_NVM_PAGE_SIZE		64	/* bytes */
+
+#define SMIAPP_RESET_DELAY_CLOCKS	2400
+#define SMIAPP_RESET_DELAY(clk)				\
+	(1000 +	(SMIAPP_RESET_DELAY_CLOCKS * 1000	\
+		 + (clk) / 1000 - 1) / ((clk) / 1000))
+
+#define CCS_COLOUR_COMPONENTS		4
+
+#define SMIAPP_NAME			"smiapp"
+#define CCS_NAME			"ccs"
+
+#define CCS_DFL_I2C_ADDR	(0x20 >> 1) /* Default I2C Address */
+#define CCS_ALT_I2C_ADDR	(0x6e >> 1) /* Alternate I2C Address */
+
+#define CCS_LIM(sensor, limit) \
+	ccs_get_limit(sensor, CCS_L_##limit, 0)
+
+#define CCS_LIM_AT(sensor, limit, offset)	\
+	ccs_get_limit(sensor, CCS_L_##limit, CCS_L_##limit##_OFFSET(offset))
+
+/*
+ * Sometimes due to board layout considerations the camera module can be
+ * mounted rotated. The typical rotation used is 180 degrees which can be
+ * corrected by giving a default H-FLIP and V-FLIP in the sensor readout.
+ * FIXME: rotation also changes the bayer pattern.
+ */
+enum ccs_module_board_orient {
+	CCS_MODULE_BOARD_ORIENT_0 = 0,
+	CCS_MODULE_BOARD_ORIENT_180,
+};
+
+struct ccs_flash_strobe_parms {
+	u8 mode;
+	u32 strobe_width_high_us;
+	u16 strobe_delay;
+	u16 stobe_start_point;
+	u8 trigger;
+};
+
+struct ccs_hwconfig {
+	/*
+	 * Change the cci address if i2c_addr_alt is set.
+	 * Both default and alternate cci addr need to be present
+	 */
+	unsigned short i2c_addr_dfl;	/* Default i2c addr */
+	unsigned short i2c_addr_alt;	/* Alternate i2c addr */
+
+	u32 ext_clk;			/* sensor external clk */
+
+	unsigned int lanes;		/* Number of CSI-2 lanes */
+	u32 csi_signalling_mode;	/* CCS_CSI_SIGNALLING_MODE_* */
+	u64 *op_sys_clock;
+
+	enum ccs_module_board_orient module_board_orient;
+
+	struct ccs_flash_strobe_parms *strobe_setup;
+};
+
+struct ccs_quirk;
+
+#define CCS_MODULE_IDENT_FLAG_REV_LE		(1 << 0)
+
+struct ccs_module_ident {
+	u16 mipi_manufacturer_id;
+	u16 model_id;
+	u8 smia_manufacturer_id;
+	u8 revision_number_major;
+
+	u8 flags;
+
+	char *name;
+	const struct ccs_quirk *quirk;
+};
+
+struct ccs_module_info {
+	u32 smia_manufacturer_id;
+	u32 mipi_manufacturer_id;
+	u32 model_id;
+	u32 revision_number;
+
+	u32 module_year;
+	u32 module_month;
+	u32 module_day;
+
+	u32 sensor_smia_manufacturer_id;
+	u32 sensor_mipi_manufacturer_id;
+	u32 sensor_model_id;
+	u32 sensor_revision_number;
+	u32 sensor_firmware_version;
+
+	u32 smia_version;
+	u32 smiapp_version;
+	u32 ccs_version;
+
+	char *name;
+	const struct ccs_quirk *quirk;
+};
+
+#define CCS_IDENT_FQ(manufacturer, model, rev, fl, _name, _quirk)	\
+	{ .smia_manufacturer_id = manufacturer,				\
+	  .model_id = model,						\
+	  .revision_number_major = rev,					\
+	  .flags = fl,							\
+	  .name = _name,						\
+	  .quirk = _quirk, }
+
+#define CCS_IDENT_LQ(manufacturer, model, rev, _name, _quirk)	\
+	{ .smia_manufacturer_id = manufacturer,				\
+	  .model_id = model,						\
+	  .revision_number_major = rev,					\
+	  .flags = CCS_MODULE_IDENT_FLAG_REV_LE,			\
+	  .name = _name,						\
+	  .quirk = _quirk, }
+
+#define CCS_IDENT_L(manufacturer, model, rev, _name)			\
+	{ .smia_manufacturer_id = manufacturer,				\
+	  .model_id = model,						\
+	  .revision_number_major = rev,					\
+	  .flags = CCS_MODULE_IDENT_FLAG_REV_LE,			\
+	  .name = _name, }
+
+#define CCS_IDENT_Q(manufacturer, model, rev, _name, _quirk)		\
+	{ .smia_manufacturer_id = manufacturer,				\
+	  .model_id = model,						\
+	  .revision_number_major = rev,					\
+	  .flags = 0,							\
+	  .name = _name,						\
+	  .quirk = _quirk, }
+
+#define CCS_IDENT(manufacturer, model, rev, _name)			\
+	{ .smia_manufacturer_id = manufacturer,				\
+	  .model_id = model,						\
+	  .revision_number_major = rev,					\
+	  .flags = 0,							\
+	  .name = _name, }
+
+struct ccs_csi_data_format {
+	u32 code;
+	u8 width;
+	u8 compressed;
+	u8 pixel_order;
+};
+
+#define CCS_SUBDEVS			3
+
+#define CCS_PA_PAD_SRC			0
+#define CCS_PAD_SINK			0
+#define CCS_PAD_SRC			1
+#define CCS_PADS			2
+
+struct ccs_binning_subtype {
+	u8 horizontal:4;
+	u8 vertical:4;
+} __packed;
+
+struct ccs_subdev {
+	struct v4l2_subdev sd;
+	struct media_pad pads[CCS_PADS];
+	struct v4l2_rect sink_fmt;
+	struct v4l2_rect crop[CCS_PADS];
+	struct v4l2_rect compose; /* compose on sink */
+	unsigned short sink_pad;
+	unsigned short source_pad;
+	int npads;
+	struct ccs_sensor *sensor;
+	struct v4l2_ctrl_handler ctrl_handler;
+};
+
+/*
+ * struct ccs_sensor - Main device structure
+ */
+struct ccs_sensor {
+	/*
+	 * "mutex" is used to serialise access to all fields here
+	 * except v4l2_ctrls at the end of the struct. "mutex" is also
+	 * used to serialise access to file handle specific
+	 * information.
+	 */
+	struct mutex mutex;
+	struct ccs_subdev ssds[CCS_SUBDEVS];
+	u32 ssds_used;
+	struct ccs_subdev *src;
+	struct ccs_subdev *binner;
+	struct ccs_subdev *scaler;
+	struct ccs_subdev *pixel_array;
+	struct ccs_hwconfig hwcfg;
+	struct regulator_bulk_data *regulators;
+	struct clk *ext_clk;
+	struct gpio_desc *xshutdown;
+	struct gpio_desc *reset;
+	void *ccs_limits;
+	u8 nbinning_subtypes;
+	struct ccs_binning_subtype binning_subtypes[CCS_LIM_BINNING_SUB_TYPE_MAX_N + 1];
+	u32 mbus_frame_fmts;
+	const struct ccs_csi_data_format *csi_format;
+	const struct ccs_csi_data_format *internal_csi_format;
+	u32 default_mbus_frame_fmts;
+	int default_pixel_order;
+	struct ccs_data_container sdata, mdata;
+
+	u8 binning_horizontal;
+	u8 binning_vertical;
+
+	u8 scale_m;
+	u8 scaling_mode;
+
+	u8 hvflip_inv_mask; /* H/VFLIP inversion due to sensor orientation */
+	u8 frame_skip;
+	u16 embedded_start; /* embedded data start line */
+	u16 embedded_end;
+	u16 image_start; /* image data start line */
+	u16 visible_pixel_start; /* start pixel of the visible image */
+
+	bool streaming;
+	bool dev_init_done;
+	u8 compressed_min_bpp;
+
+	struct ccs_module_info minfo;
+
+	struct ccs_pll pll;
+
+	/* Is a default format supported for a given BPP? */
+	unsigned long *valid_link_freqs;
+
+	/* Pixel array controls */
+	struct v4l2_ctrl *exposure;
+	struct v4l2_ctrl *hflip;
+	struct v4l2_ctrl *vflip;
+	struct v4l2_ctrl *vblank;
+	struct v4l2_ctrl *hblank;
+	struct v4l2_ctrl *pixel_rate_parray;
+	struct v4l2_ctrl *luminance_level;
+	/* src controls */
+	struct v4l2_ctrl *link_freq;
+	struct v4l2_ctrl *pixel_rate_csi;
+	/* test pattern colour components */
+	struct v4l2_ctrl *test_data[CCS_COLOUR_COMPONENTS];
+};
+
+#define to_ccs_subdev(_sd)				\
+	container_of(_sd, struct ccs_subdev, sd)
+
+#define to_ccs_sensor(_sd)	\
+	(to_ccs_subdev(_sd)->sensor)
+
+void ccs_replace_limit(struct ccs_sensor *sensor,
+		       unsigned int limit, unsigned int offset, u32 val);
+u32 ccs_get_limit(struct ccs_sensor *sensor, unsigned int limit,
+		  unsigned int offset);
+
+#endif /* __CCS_H__ */