[mirror_ubuntu-zesty-kernel.git] / include / media / soc_camera.h

/*
 * camera image capture (abstract) bus driver header
 *
 * Copyright (C) 2006, Sascha Hauer, Pengutronix
 * Copyright (C) 2008, Guennadi Liakhovetski <kernel@pengutronix.de>
 *
 * 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.
 */

#ifndef SOC_CAMERA_H
#define SOC_CAMERA_H

#include <linux/mutex.h>
#include <linux/pm.h>
#include <linux/videodev2.h>
#include <media/videobuf-core.h>

struct soc_camera_device {
	struct list_head list;
	struct device dev;
	struct device *control;
	unsigned short width;		/* Current window */
	unsigned short height;		/* sizes */
	unsigned short x_min;		/* Camera capabilities */
	unsigned short y_min;
	unsigned short x_current;	/* Current window location */
	unsigned short y_current;
	unsigned short width_min;
	unsigned short width_max;
	unsigned short height_min;
	unsigned short height_max;
	unsigned short y_skip_top;	/* Lines to skip at the top */
	unsigned short gain;
	unsigned short exposure;
	unsigned char iface;		/* Host number */
	unsigned char devnum;		/* Device number per host */
	unsigned char buswidth;		/* See comment in .c */
	struct soc_camera_sense *sense;	/* See comment in struct definition */
	struct soc_camera_ops *ops;
	struct video_device *vdev;
	const struct soc_camera_data_format *current_fmt;
	const struct soc_camera_data_format *formats;
	int num_formats;
	struct soc_camera_format_xlate *user_formats;
	int num_user_formats;
	enum v4l2_field field;		/* Preserve field over close() */
	struct module *owner;
	void *host_priv;		/* Per-device host private data */
	/* soc_camera.c private count. Only accessed with .video_lock held */
	int use_count;
	struct mutex video_lock;	/* Protects device data */
};

struct soc_camera_file {
	struct soc_camera_device *icd;
	struct videobuf_queue vb_vidq;
};

struct soc_camera_host {
	struct list_head list;
	struct device *dev;
	unsigned char nr;				/* Host number */
	void *priv;
	const char *drv_name;
	struct soc_camera_host_ops *ops;
};

struct soc_camera_host_ops {
	struct module *owner;
	int (*add)(struct soc_camera_device *);
	void (*remove)(struct soc_camera_device *);
	int (*suspend)(struct soc_camera_device *, pm_message_t);
	int (*resume)(struct soc_camera_device *);
	int (*get_formats)(struct soc_camera_device *, int,
			   struct soc_camera_format_xlate *);
	int (*set_crop)(struct soc_camera_device *, struct v4l2_rect *);
	int (*set_fmt)(struct soc_camera_device *, struct v4l2_format *);
	int (*try_fmt)(struct soc_camera_device *, struct v4l2_format *);
	void (*init_videobuf)(struct videobuf_queue *,
			      struct soc_camera_device *);
	int (*reqbufs)(struct soc_camera_file *, struct v4l2_requestbuffers *);
	int (*querycap)(struct soc_camera_host *, struct v4l2_capability *);
	int (*set_bus_param)(struct soc_camera_device *, __u32);
	unsigned int (*poll)(struct file *, poll_table *);
};

#define SOCAM_SENSOR_INVERT_PCLK	(1 << 0)
#define SOCAM_SENSOR_INVERT_MCLK	(1 << 1)
#define SOCAM_SENSOR_INVERT_HSYNC	(1 << 2)
#define SOCAM_SENSOR_INVERT_VSYNC	(1 << 3)
#define SOCAM_SENSOR_INVERT_DATA	(1 << 4)

struct i2c_board_info;

struct soc_camera_link {
	/* Camera bus id, used to match a camera and a bus */
	int bus_id;
	/* Per camera SOCAM_SENSOR_* bus flags */
	unsigned long flags;
	int i2c_adapter_id;
	struct i2c_board_info *board_info;
	const char *module_name;
	/*
	 * For non-I2C devices platform platform has to provide methods to
	 * add a device to the system and to remove
	 */
	int (*add_device)(struct soc_camera_link *, struct device *);
	void (*del_device)(struct soc_camera_link *);
	/* Optional callbacks to power on or off and reset the sensor */
	int (*power)(struct device *, int);
	int (*reset)(struct device *);
	/*
	 * some platforms may support different data widths than the sensors
	 * native ones due to different data line routing. Let the board code
	 * overwrite the width flags.
	 */
	int (*set_bus_param)(struct soc_camera_link *, unsigned long flags);
	unsigned long (*query_bus_param)(struct soc_camera_link *);
	void (*free_bus)(struct soc_camera_link *);
};

static inline struct soc_camera_device *to_soc_camera_dev(struct device *dev)
{
	return container_of(dev, struct soc_camera_device, dev);
}

static inline struct soc_camera_host *to_soc_camera_host(struct device *dev)
{
	return dev_get_drvdata(dev);
}

extern int soc_camera_host_register(struct soc_camera_host *ici);
extern void soc_camera_host_unregister(struct soc_camera_host *ici);
extern int soc_camera_device_register(struct soc_camera_device *icd);
extern void soc_camera_device_unregister(struct soc_camera_device *icd);

extern int soc_camera_video_start(struct soc_camera_device *icd);
extern void soc_camera_video_stop(struct soc_camera_device *icd);

extern const struct soc_camera_data_format *soc_camera_format_by_fourcc(
	struct soc_camera_device *icd, unsigned int fourcc);
extern const struct soc_camera_format_xlate *soc_camera_xlate_by_fourcc(
	struct soc_camera_device *icd, unsigned int fourcc);

struct soc_camera_data_format {
	const char *name;
	unsigned int depth;
	__u32 fourcc;
	enum v4l2_colorspace colorspace;
};

/**
 * struct soc_camera_format_xlate - match between host and sensor formats
 * @cam_fmt: sensor format provided by the sensor
 * @host_fmt: host format after host translation from cam_fmt
 * @buswidth: bus width for this format
 *
 * Host and sensor translation structure. Used in table of host and sensor
 * formats matchings in soc_camera_device. A host can override the generic list
 * generation by implementing get_formats(), and use it for format checks and
 * format setup.
 */
struct soc_camera_format_xlate {
	const struct soc_camera_data_format *cam_fmt;
	const struct soc_camera_data_format *host_fmt;
	unsigned char buswidth;
};

struct soc_camera_ops {
	struct module *owner;
	int (*probe)(struct soc_camera_device *);
	void (*remove)(struct soc_camera_device *);
	int (*suspend)(struct soc_camera_device *, pm_message_t state);
	int (*resume)(struct soc_camera_device *);
	int (*init)(struct soc_camera_device *);
	int (*release)(struct soc_camera_device *);
	int (*start_capture)(struct soc_camera_device *);
	int (*stop_capture)(struct soc_camera_device *);
	int (*set_crop)(struct soc_camera_device *, struct v4l2_rect *);
	int (*set_fmt)(struct soc_camera_device *, struct v4l2_format *);
	int (*try_fmt)(struct soc_camera_device *, struct v4l2_format *);
	unsigned long (*query_bus_param)(struct soc_camera_device *);
	int (*set_bus_param)(struct soc_camera_device *, unsigned long);
	int (*get_chip_id)(struct soc_camera_device *,
			   struct v4l2_dbg_chip_ident *);
	int (*set_std)(struct soc_camera_device *, v4l2_std_id *);
	int (*enum_input)(struct soc_camera_device *, struct v4l2_input *);
#ifdef CONFIG_VIDEO_ADV_DEBUG
	int (*get_register)(struct soc_camera_device *, struct v4l2_dbg_register *);
	int (*set_register)(struct soc_camera_device *, struct v4l2_dbg_register *);
#endif
	int (*get_control)(struct soc_camera_device *, struct v4l2_control *);
	int (*set_control)(struct soc_camera_device *, struct v4l2_control *);
	const struct v4l2_queryctrl *controls;
	int num_controls;
};

#define SOCAM_SENSE_PCLK_CHANGED	(1 << 0)

/**
 * This struct can be attached to struct soc_camera_device by the host driver
 * to request sense from the camera, for example, when calling .set_fmt(). The
 * host then can check which flags are set and verify respective values if any.
 * For example, if SOCAM_SENSE_PCLK_CHANGED is set, it means, pixclock has
 * changed during this operation. After completion the host should detach sense.
 *
 * @flags		ored SOCAM_SENSE_* flags
 * @master_clock	if the host wants to be informed about pixel-clock
 *			change, it better set master_clock.
 * @pixel_clock_max	maximum pixel clock frequency supported by the host,
 *			camera is not allowed to exceed this.
 * @pixel_clock		if the camera driver changed pixel clock during this
 *			operation, it sets SOCAM_SENSE_PCLK_CHANGED, uses
 *			master_clock to calculate the new pixel-clock and
 *			sets this field.
 */
struct soc_camera_sense {
	unsigned long flags;
	unsigned long master_clock;
	unsigned long pixel_clock_max;
	unsigned long pixel_clock;
};

static inline struct v4l2_queryctrl const *soc_camera_find_qctrl(
	struct soc_camera_ops *ops, int id)
{
	int i;

	for (i = 0; i < ops->num_controls; i++)
		if (ops->controls[i].id == id)
			return &ops->controls[i];

	return NULL;
}

#define SOCAM_MASTER			(1 << 0)
#define SOCAM_SLAVE			(1 << 1)
#define SOCAM_HSYNC_ACTIVE_HIGH		(1 << 2)
#define SOCAM_HSYNC_ACTIVE_LOW		(1 << 3)
#define SOCAM_VSYNC_ACTIVE_HIGH		(1 << 4)
#define SOCAM_VSYNC_ACTIVE_LOW		(1 << 5)
#define SOCAM_DATAWIDTH_4		(1 << 6)
#define SOCAM_DATAWIDTH_8		(1 << 7)
#define SOCAM_DATAWIDTH_9		(1 << 8)
#define SOCAM_DATAWIDTH_10		(1 << 9)
#define SOCAM_DATAWIDTH_15		(1 << 10)
#define SOCAM_DATAWIDTH_16		(1 << 11)
#define SOCAM_PCLK_SAMPLE_RISING	(1 << 12)
#define SOCAM_PCLK_SAMPLE_FALLING	(1 << 13)
#define SOCAM_DATA_ACTIVE_HIGH		(1 << 14)
#define SOCAM_DATA_ACTIVE_LOW		(1 << 15)

#define SOCAM_DATAWIDTH_MASK (SOCAM_DATAWIDTH_4 | SOCAM_DATAWIDTH_8 | \
			      SOCAM_DATAWIDTH_9 | SOCAM_DATAWIDTH_10 | \
			      SOCAM_DATAWIDTH_15 | SOCAM_DATAWIDTH_16)

static inline unsigned long soc_camera_bus_param_compatible(
			unsigned long camera_flags, unsigned long bus_flags)
{
	unsigned long common_flags, hsync, vsync, pclk, data, buswidth, mode;

	common_flags = camera_flags & bus_flags;

	hsync = common_flags & (SOCAM_HSYNC_ACTIVE_HIGH | SOCAM_HSYNC_ACTIVE_LOW);
	vsync = common_flags & (SOCAM_VSYNC_ACTIVE_HIGH | SOCAM_VSYNC_ACTIVE_LOW);
	pclk = common_flags & (SOCAM_PCLK_SAMPLE_RISING | SOCAM_PCLK_SAMPLE_FALLING);
	data = common_flags & (SOCAM_DATA_ACTIVE_HIGH | SOCAM_DATA_ACTIVE_LOW);
	mode = common_flags & (SOCAM_MASTER | SOCAM_SLAVE);
	buswidth = common_flags & SOCAM_DATAWIDTH_MASK;

	return (!hsync || !vsync || !pclk || !data || !mode || !buswidth) ? 0 :
		common_flags;
}

extern unsigned long soc_camera_apply_sensor_flags(struct soc_camera_link *icl,
						   unsigned long flags);

#endif
Commit	Line	Data
e55222ef GL	1	/*
	2	* camera image capture (abstract) bus driver header
	3	*
	4	* Copyright (C) 2006, Sascha Hauer, Pengutronix
	5	* Copyright (C) 2008, Guennadi Liakhovetski <kernel@pengutronix.de>
	6	*
	7	* This program is free software; you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License version 2 as
	9	* published by the Free Software Foundation.
	10	*/
	11
	12	#ifndef SOC_CAMERA_H
	13	#define SOC_CAMERA_H
	14
1c3bb743 GL	15	#include <linux/mutex.h>
1c3bb743 GL	16	#include <linux/pm.h>
e55222ef	17	#include <linux/videodev2.h>
092d3921	18	#include <media/videobuf-core.h>
e55222ef GL	19
	20	struct soc_camera_device {
	21	struct list_head list;
	22	struct device dev;
	23	struct device *control;
	24	unsigned short width; /* Current window */
	25	unsigned short height; /* sizes */
	26	unsigned short x_min; /* Camera capabilities */
	27	unsigned short y_min;
	28	unsigned short x_current; /* Current window location */
	29	unsigned short y_current;
	30	unsigned short width_min;
	31	unsigned short width_max;
	32	unsigned short height_min;
	33	unsigned short height_max;
	34	unsigned short y_skip_top; /* Lines to skip at the top */
	35	unsigned short gain;
	36	unsigned short exposure;
	37	unsigned char iface; /* Host number */
	38	unsigned char devnum; /* Device number per host */
ad5f2e85	39	unsigned char buswidth; /* See comment in .c */
a9bef518	40	struct soc_camera_sense sense; / See comment in struct definition */
e55222ef GL	41	struct soc_camera_ops *ops;
	42	struct video_device *vdev;
	43	const struct soc_camera_data_format *current_fmt;
26f1b942 GL	44	const struct soc_camera_data_format *formats;
26f1b942 GL	45	int num_formats;
c2786ad2 GL	46	struct soc_camera_format_xlate *user_formats;
c2786ad2 GL	47	int num_user_formats;
025c18a1	48	enum v4l2_field field; /* Preserve field over close() */
e55222ef	49	struct module *owner;
1c3bb743 GL	50	void host_priv; / Per-device host private data */
1c3bb743 GL	51	/* soc_camera.c private count. Only accessed with .video_lock held */
9dc4e48f	52	int use_count;
1c3bb743	53	struct mutex video_lock; /* Protects device data */
e55222ef GL	54	};
	55
	56	struct soc_camera_file {
	57	struct soc_camera_device *icd;
	58	struct videobuf_queue vb_vidq;
	59	};
	60
	61	struct soc_camera_host {
	62	struct list_head list;
eff505fa	63	struct device *dev;
e55222ef	64	unsigned char nr; /* Host number */
e55222ef	65	void *priv;
af128a10	66	const char *drv_name;
b8d9904c GL	67	struct soc_camera_host_ops *ops;
	68	};
	69
	70	struct soc_camera_host_ops {
	71	struct module *owner;
e55222ef GL	72	int (add)(struct soc_camera_device );
e55222ef GL	73	void (remove)(struct soc_camera_device );
c2786ad2	74	int (suspend)(struct soc_camera_device , pm_message_t);
2e521061	75	int (resume)(struct soc_camera_device );
c2786ad2 GL	76	int (get_formats)(struct soc_camera_device , int,
c2786ad2 GL	77	struct soc_camera_format_xlate *);
09e231b3 GL	78	int (set_crop)(struct soc_camera_device , struct v4l2_rect *);
09e231b3 GL	79	int (set_fmt)(struct soc_camera_device , struct v4l2_format *);
d8fac217	80	int (try_fmt)(struct soc_camera_device , struct v4l2_format *);
a034d1b7	81	void (init_videobuf)(struct videobuf_queue ,
092d3921	82	struct soc_camera_device *);
e55222ef GL	83	int (reqbufs)(struct soc_camera_file , struct v4l2_requestbuffers *);
e55222ef GL	84	int (querycap)(struct soc_camera_host , struct v4l2_capability *);
ad5f2e85	85	int (set_bus_param)(struct soc_camera_device , __u32);
e55222ef GL	86	unsigned int (poll)(struct file , poll_table *);
	87	};
	88
bd73b36f GL	89	#define SOCAM_SENSOR_INVERT_PCLK (1 << 0)
	90	#define SOCAM_SENSOR_INVERT_MCLK (1 << 1)
	91	#define SOCAM_SENSOR_INVERT_HSYNC (1 << 2)
	92	#define SOCAM_SENSOR_INVERT_VSYNC (1 << 3)
	93	#define SOCAM_SENSOR_INVERT_DATA (1 << 4)
	94
0fd327bd GL	95	struct i2c_board_info;
0fd327bd GL	96
e55222ef GL	97	struct soc_camera_link {
	98	/* Camera bus id, used to match a camera and a bus */
	99	int bus_id;
bd73b36f GL	100	/* Per camera SOCAM_SENSOR_* bus flags */
bd73b36f GL	101	unsigned long flags;
0fd327bd GL	102	int i2c_adapter_id;
	103	struct i2c_board_info *board_info;
	104	const char *module_name;
c41debaf GL	105	/*
	106	* For non-I2C devices platform platform has to provide methods to
	107	* add a device to the system and to remove
	108	*/
	109	int (add_device)(struct soc_camera_link , struct device *);
	110	void (del_device)(struct soc_camera_link );
81034663 SH	111	/* Optional callbacks to power on or off and reset the sensor */
	112	int (power)(struct device , int);
	113	int (reset)(struct device );
28f59339 SH	114	/*
	115	* some platforms may support different data widths than the sensors
	116	* native ones due to different data line routing. Let the board code
	117	* overwrite the width flags.
	118	*/
	119	int (set_bus_param)(struct soc_camera_link , unsigned long flags);
	120	unsigned long (query_bus_param)(struct soc_camera_link );
594bb46d	121	void (free_bus)(struct soc_camera_link );
e55222ef GL	122	};
	123
	124	static inline struct soc_camera_device to_soc_camera_dev(struct device dev)
	125	{
	126	return container_of(dev, struct soc_camera_device, dev);
	127	}
	128
	129	static inline struct soc_camera_host to_soc_camera_host(struct device dev)
	130	{
eff505fa	131	return dev_get_drvdata(dev);
e55222ef GL	132	}
e55222ef GL	133
b8d9904c	134	extern int soc_camera_host_register(struct soc_camera_host *ici);
e55222ef GL	135	extern void soc_camera_host_unregister(struct soc_camera_host *ici);
	136	extern int soc_camera_device_register(struct soc_camera_device *icd);
	137	extern void soc_camera_device_unregister(struct soc_camera_device *icd);
	138
	139	extern int soc_camera_video_start(struct soc_camera_device *icd);
	140	extern void soc_camera_video_stop(struct soc_camera_device *icd);
	141
25c4d74e GL	142	extern const struct soc_camera_data_format *soc_camera_format_by_fourcc(
25c4d74e GL	143	struct soc_camera_device *icd, unsigned int fourcc);
c2786ad2 GL	144	extern const struct soc_camera_format_xlate *soc_camera_xlate_by_fourcc(
c2786ad2 GL	145	struct soc_camera_device *icd, unsigned int fourcc);
25c4d74e	146
e55222ef	147	struct soc_camera_data_format {
af128a10	148	const char *name;
e55222ef GL	149	unsigned int depth;
	150	__u32 fourcc;
	151	enum v4l2_colorspace colorspace;
	152	};
	153
c2786ad2 GL	154	/**
	155	* struct soc_camera_format_xlate - match between host and sensor formats
	156	* @cam_fmt: sensor format provided by the sensor
	157	* @host_fmt: host format after host translation from cam_fmt
	158	* @buswidth: bus width for this format
	159	*
	160	* Host and sensor translation structure. Used in table of host and sensor
	161	* formats matchings in soc_camera_device. A host can override the generic list
	162	* generation by implementing get_formats(), and use it for format checks and
	163	* format setup.
	164	*/
	165	struct soc_camera_format_xlate {
	166	const struct soc_camera_data_format *cam_fmt;
	167	const struct soc_camera_data_format *host_fmt;
	168	unsigned char buswidth;
	169	};
	170
e55222ef GL	171	struct soc_camera_ops {
e55222ef GL	172	struct module *owner;
26f1b942 GL	173	int (probe)(struct soc_camera_device );
26f1b942 GL	174	void (remove)(struct soc_camera_device );
2e521061 RJ	175	int (suspend)(struct soc_camera_device , pm_message_t state);
2e521061 RJ	176	int (resume)(struct soc_camera_device );
e55222ef GL	177	int (init)(struct soc_camera_device );
	178	int (release)(struct soc_camera_device );
	179	int (start_capture)(struct soc_camera_device );
	180	int (stop_capture)(struct soc_camera_device );
09e231b3 GL	181	int (set_crop)(struct soc_camera_device , struct v4l2_rect *);
09e231b3 GL	182	int (set_fmt)(struct soc_camera_device , struct v4l2_format *);
d8fac217	183	int (try_fmt)(struct soc_camera_device , struct v4l2_format *);
ad5f2e85 GL	184	unsigned long (query_bus_param)(struct soc_camera_device );
ad5f2e85 GL	185	int (set_bus_param)(struct soc_camera_device , unsigned long);
e55222ef	186	int (get_chip_id)(struct soc_camera_device ,
aecde8b5	187	struct v4l2_dbg_chip_ident *);
513791ab	188	int (set_std)(struct soc_camera_device , v4l2_std_id *);
34d359db	189	int (enum_input)(struct soc_camera_device , struct v4l2_input *);
e55222ef	190	#ifdef CONFIG_VIDEO_ADV_DEBUG
aecde8b5 HV	191	int (get_register)(struct soc_camera_device , struct v4l2_dbg_register *);
aecde8b5 HV	192	int (set_register)(struct soc_camera_device , struct v4l2_dbg_register *);
e55222ef	193	#endif
e55222ef GL	194	int (get_control)(struct soc_camera_device , struct v4l2_control *);
	195	int (set_control)(struct soc_camera_device , struct v4l2_control *);
	196	const struct v4l2_queryctrl *controls;
	197	int num_controls;
e55222ef GL	198	};
e55222ef GL	199
a9bef518 GL	200	#define SOCAM_SENSE_PCLK_CHANGED (1 << 0)
	201
	202	/**
	203	* This struct can be attached to struct soc_camera_device by the host driver
	204	* to request sense from the camera, for example, when calling .set_fmt(). The
	205	* host then can check which flags are set and verify respective values if any.
	206	* For example, if SOCAM_SENSE_PCLK_CHANGED is set, it means, pixclock has
	207	* changed during this operation. After completion the host should detach sense.
	208	*
	209	* @flags ored SOCAM_SENSE_* flags
	210	* @master_clock if the host wants to be informed about pixel-clock
	211	* change, it better set master_clock.
	212	* @pixel_clock_max maximum pixel clock frequency supported by the host,
	213	* camera is not allowed to exceed this.
	214	* @pixel_clock if the camera driver changed pixel clock during this
	215	* operation, it sets SOCAM_SENSE_PCLK_CHANGED, uses
	216	* master_clock to calculate the new pixel-clock and
	217	* sets this field.
	218	*/
	219	struct soc_camera_sense {
	220	unsigned long flags;
	221	unsigned long master_clock;
	222	unsigned long pixel_clock_max;
	223	unsigned long pixel_clock;
	224	};
	225
e55222ef GL	226	static inline struct v4l2_queryctrl const *soc_camera_find_qctrl(
	227	struct soc_camera_ops *ops, int id)
	228	{
	229	int i;
	230
	231	for (i = 0; i < ops->num_controls; i++)
	232	if (ops->controls[i].id == id)
	233	return &ops->controls[i];
	234
	235	return NULL;
	236	}
	237
ad5f2e85 GL	238	#define SOCAM_MASTER (1 << 0)
	239	#define SOCAM_SLAVE (1 << 1)
	240	#define SOCAM_HSYNC_ACTIVE_HIGH (1 << 2)
	241	#define SOCAM_HSYNC_ACTIVE_LOW (1 << 3)
	242	#define SOCAM_VSYNC_ACTIVE_HIGH (1 << 4)
	243	#define SOCAM_VSYNC_ACTIVE_LOW (1 << 5)
042d8790 GL	244	#define SOCAM_DATAWIDTH_4 (1 << 6)
	245	#define SOCAM_DATAWIDTH_8 (1 << 7)
	246	#define SOCAM_DATAWIDTH_9 (1 << 8)
	247	#define SOCAM_DATAWIDTH_10 (1 << 9)
	248	#define SOCAM_DATAWIDTH_15 (1 << 10)
	249	#define SOCAM_DATAWIDTH_16 (1 << 11)
	250	#define SOCAM_PCLK_SAMPLE_RISING (1 << 12)
	251	#define SOCAM_PCLK_SAMPLE_FALLING (1 << 13)
	252	#define SOCAM_DATA_ACTIVE_HIGH (1 << 14)
	253	#define SOCAM_DATA_ACTIVE_LOW (1 << 15)
	254
	255	#define SOCAM_DATAWIDTH_MASK (SOCAM_DATAWIDTH_4 \| SOCAM_DATAWIDTH_8 \| \
	256	SOCAM_DATAWIDTH_9 \| SOCAM_DATAWIDTH_10 \| \
	257	SOCAM_DATAWIDTH_15 \| SOCAM_DATAWIDTH_16)
ad5f2e85 GL	258
	259	static inline unsigned long soc_camera_bus_param_compatible(
	260	unsigned long camera_flags, unsigned long bus_flags)
	261	{
f7f41483	262	unsigned long common_flags, hsync, vsync, pclk, data, buswidth, mode;
ad5f2e85 GL	263
	264	common_flags = camera_flags & bus_flags;
	265
	266	hsync = common_flags & (SOCAM_HSYNC_ACTIVE_HIGH \| SOCAM_HSYNC_ACTIVE_LOW);
	267	vsync = common_flags & (SOCAM_VSYNC_ACTIVE_HIGH \| SOCAM_VSYNC_ACTIVE_LOW);
	268	pclk = common_flags & (SOCAM_PCLK_SAMPLE_RISING \| SOCAM_PCLK_SAMPLE_FALLING);
f7f41483 GL	269	data = common_flags & (SOCAM_DATA_ACTIVE_HIGH \| SOCAM_DATA_ACTIVE_LOW);
	270	mode = common_flags & (SOCAM_MASTER \| SOCAM_SLAVE);
	271	buswidth = common_flags & SOCAM_DATAWIDTH_MASK;
ad5f2e85	272
f7f41483 GL	273	return (!hsync \|\| !vsync \|\| !pclk \|\| !data \|\| !mode \|\| !buswidth) ? 0 :
f7f41483 GL	274	common_flags;
ad5f2e85	275	}
e55222ef	276
bd73b36f GL	277	extern unsigned long soc_camera_apply_sensor_flags(struct soc_camera_link *icl,
	278	unsigned long flags);
	279
e55222ef	280	#endif