[mirror_ubuntu-zesty-kernel.git] / drivers / media / usb / pwc / pwc.h

/* (C) 1999-2003 Nemosoft Unv.
   (C) 2004-2006 Luc Saillard (luc@saillard.org)

   NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx
   driver and thus may have bugs that are not present in the original version.
   Please send bug reports and support requests to <luc@saillard.org>.
   The decompression routines have been implemented by reverse-engineering the
   Nemosoft binary pwcx module. Caveat emptor.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

#ifndef PWC_H
#define PWC_H

#include <linux/module.h>
#include <linux/usb.h>
#include <linux/spinlock.h>
#include <linux/wait.h>
#include <linux/mutex.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <asm/errno.h>
#include <linux/videodev2.h>
#include <media/v4l2-common.h>
#include <media/v4l2-device.h>
#include <media/v4l2-ioctl.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-fh.h>
#include <media/v4l2-event.h>
#include <media/videobuf2-v4l2.h>
#include <media/videobuf2-vmalloc.h>
#ifdef CONFIG_USB_PWC_INPUT_EVDEV
#include <linux/input.h>
#endif
#include "pwc-dec1.h"
#include "pwc-dec23.h"

/* Version block */
#define PWC_VERSION	"10.0.15"
#define PWC_NAME 	"pwc"
#define PFX		PWC_NAME ": "


/* Trace certain actions in the driver */
#define PWC_DEBUG_LEVEL_MODULE	(1<<0)
#define PWC_DEBUG_LEVEL_PROBE	(1<<1)
#define PWC_DEBUG_LEVEL_OPEN	(1<<2)
#define PWC_DEBUG_LEVEL_READ	(1<<3)
#define PWC_DEBUG_LEVEL_MEMORY	(1<<4)
#define PWC_DEBUG_LEVEL_FLOW	(1<<5)
#define PWC_DEBUG_LEVEL_SIZE	(1<<6)
#define PWC_DEBUG_LEVEL_IOCTL	(1<<7)
#define PWC_DEBUG_LEVEL_TRACE	(1<<8)

#define PWC_DEBUG_MODULE(fmt, args...) PWC_DEBUG(MODULE, fmt, ##args)
#define PWC_DEBUG_PROBE(fmt, args...) PWC_DEBUG(PROBE, fmt, ##args)
#define PWC_DEBUG_OPEN(fmt, args...) PWC_DEBUG(OPEN, fmt, ##args)
#define PWC_DEBUG_READ(fmt, args...) PWC_DEBUG(READ, fmt, ##args)
#define PWC_DEBUG_MEMORY(fmt, args...) PWC_DEBUG(MEMORY, fmt, ##args)
#define PWC_DEBUG_FLOW(fmt, args...) PWC_DEBUG(FLOW, fmt, ##args)
#define PWC_DEBUG_SIZE(fmt, args...) PWC_DEBUG(SIZE, fmt, ##args)
#define PWC_DEBUG_IOCTL(fmt, args...) PWC_DEBUG(IOCTL, fmt, ##args)
#define PWC_DEBUG_TRACE(fmt, args...) PWC_DEBUG(TRACE, fmt, ##args)


#ifdef CONFIG_USB_PWC_DEBUG

#define PWC_DEBUG_LEVEL	(PWC_DEBUG_LEVEL_MODULE)

#define PWC_DEBUG(level, fmt, args...) do {\
	if ((PWC_DEBUG_LEVEL_ ##level) & pwc_trace) \
		printk(KERN_DEBUG PFX fmt, ##args); \
	} while (0)

#define PWC_ERROR(fmt, args...) printk(KERN_ERR PFX fmt, ##args)
#define PWC_WARNING(fmt, args...) printk(KERN_WARNING PFX fmt, ##args)
#define PWC_INFO(fmt, args...) printk(KERN_INFO PFX fmt, ##args)
#define PWC_TRACE(fmt, args...) PWC_DEBUG(TRACE, fmt, ##args)

#else /* if ! CONFIG_USB_PWC_DEBUG */

#define PWC_ERROR(fmt, args...) printk(KERN_ERR PFX fmt, ##args)
#define PWC_WARNING(fmt, args...) printk(KERN_WARNING PFX fmt, ##args)
#define PWC_INFO(fmt, args...) printk(KERN_INFO PFX fmt, ##args)
#define PWC_TRACE(fmt, args...) do { } while(0)
#define PWC_DEBUG(level, fmt, args...) do { } while(0)

#define pwc_trace 0

#endif

/* Defines for ToUCam cameras */
#define TOUCAM_HEADER_SIZE		8
#define TOUCAM_TRAILER_SIZE		4

#define FEATURE_MOTOR_PANTILT		0x0001
#define FEATURE_CODEC1			0x0002
#define FEATURE_CODEC2			0x0004

#define MAX_WIDTH		640
#define MAX_HEIGHT		480

/* Ignore errors in the first N frames, to allow for startup delays */
#define FRAME_LOWMARK 5

/* Size and number of buffers for the ISO pipe. */
#define MAX_ISO_BUFS		3
#define ISO_FRAMES_PER_DESC	10
#define ISO_MAX_FRAME_SIZE	960
#define ISO_BUFFER_SIZE 	(ISO_FRAMES_PER_DESC * ISO_MAX_FRAME_SIZE)

/* Maximum size after decompression is 640x480 YUV data, 1.5 * 640 * 480 */
#define PWC_FRAME_SIZE 		(460800 + TOUCAM_HEADER_SIZE + TOUCAM_TRAILER_SIZE)

/* Absolute minimum and maximum number of buffers available for mmap() */
#define MIN_FRAMES		2
#define MAX_FRAMES		16

/* Some macros to quickly find the type of a webcam */
#define DEVICE_USE_CODEC1(x) ((x)<675)
#define DEVICE_USE_CODEC2(x) ((x)>=675 && (x)<700)
#define DEVICE_USE_CODEC3(x) ((x)>=700)
#define DEVICE_USE_CODEC23(x) ((x)>=675)

/* Request types: video */
#define SET_LUM_CTL			0x01
#define GET_LUM_CTL			0x02
#define SET_CHROM_CTL			0x03
#define GET_CHROM_CTL			0x04
#define SET_STATUS_CTL			0x05
#define GET_STATUS_CTL			0x06
#define SET_EP_STREAM_CTL		0x07
#define GET_EP_STREAM_CTL		0x08
#define GET_XX_CTL			0x09
#define SET_XX_CTL			0x0A
#define GET_XY_CTL			0x0B
#define SET_XY_CTL			0x0C
#define SET_MPT_CTL			0x0D
#define GET_MPT_CTL			0x0E

/* Selectors for the Luminance controls [GS]ET_LUM_CTL */
#define AGC_MODE_FORMATTER			0x2000
#define PRESET_AGC_FORMATTER			0x2100
#define SHUTTER_MODE_FORMATTER			0x2200
#define PRESET_SHUTTER_FORMATTER		0x2300
#define PRESET_CONTOUR_FORMATTER		0x2400
#define AUTO_CONTOUR_FORMATTER			0x2500
#define BACK_LIGHT_COMPENSATION_FORMATTER	0x2600
#define CONTRAST_FORMATTER			0x2700
#define DYNAMIC_NOISE_CONTROL_FORMATTER		0x2800
#define FLICKERLESS_MODE_FORMATTER		0x2900
#define AE_CONTROL_SPEED			0x2A00
#define BRIGHTNESS_FORMATTER			0x2B00
#define GAMMA_FORMATTER				0x2C00

/* Selectors for the Chrominance controls [GS]ET_CHROM_CTL */
#define WB_MODE_FORMATTER			0x1000
#define AWB_CONTROL_SPEED_FORMATTER		0x1100
#define AWB_CONTROL_DELAY_FORMATTER		0x1200
#define PRESET_MANUAL_RED_GAIN_FORMATTER	0x1300
#define PRESET_MANUAL_BLUE_GAIN_FORMATTER	0x1400
#define COLOUR_MODE_FORMATTER			0x1500
#define SATURATION_MODE_FORMATTER1		0x1600
#define SATURATION_MODE_FORMATTER2		0x1700

/* Selectors for the Status controls [GS]ET_STATUS_CTL */
#define SAVE_USER_DEFAULTS_FORMATTER		0x0200
#define RESTORE_USER_DEFAULTS_FORMATTER		0x0300
#define RESTORE_FACTORY_DEFAULTS_FORMATTER	0x0400
#define READ_AGC_FORMATTER			0x0500
#define READ_SHUTTER_FORMATTER			0x0600
#define READ_RED_GAIN_FORMATTER			0x0700
#define READ_BLUE_GAIN_FORMATTER		0x0800

/* Formatters for the motorized pan & tilt [GS]ET_MPT_CTL */
#define PT_RELATIVE_CONTROL_FORMATTER		0x01
#define PT_RESET_CONTROL_FORMATTER		0x02
#define PT_STATUS_FORMATTER			0x03

/* Enumeration of image sizes */
#define PSZ_SQCIF	0x00
#define PSZ_QSIF	0x01
#define PSZ_QCIF	0x02
#define PSZ_SIF		0x03
#define PSZ_CIF		0x04
#define PSZ_VGA		0x05
#define PSZ_MAX		6

struct pwc_raw_frame {
	__le16 type;		/* type of the webcam */
	__le16 vbandlength;	/* Size of 4 lines compressed (used by the
				   decompressor) */
	__u8   cmd[4];		/* the four byte of the command (in case of
				   nala, only the first 3 bytes is filled) */
	__u8   rawframe[0];	/* frame_size = H / 4 * vbandlength */
} __packed;

/* intermediate buffers with raw data from the USB cam */
struct pwc_frame_buf
{
	/* common v4l buffer stuff -- must be first */
	struct vb2_v4l2_buffer vb;
	struct list_head list;
	void *data;
	int filled;		/* number of bytes filled */
};

struct pwc_device
{
	struct video_device vdev;
	struct v4l2_device v4l2_dev;

	/* videobuf2 queue and queued buffers list */
	struct vb2_queue vb_queue;
	struct list_head queued_bufs;
	spinlock_t queued_bufs_lock; /* Protects queued_bufs */

	/* If taking both locks vb_queue_lock must always be locked first! */
	struct mutex v4l2_lock;      /* Protects everything else */
	struct mutex vb_queue_lock;  /* Protects vb_queue and capt_file */

	/* Pointer to our usb_device, will be NULL after unplug */
	struct usb_device *udev; /* Both mutexes most be hold when setting! */

	/* type of cam (645, 646, 675, 680, 690, 720, 730, 740, 750) */
	int type;
	int release;		/* release number */
	int features;		/* feature bits */

	/*** Video data ***/
	int vendpoint;		/* video isoc endpoint */
	int vcinterface;	/* video control interface */
	int valternate;		/* alternate interface needed */
	int vframes;		/* frames-per-second */
	int pixfmt;		/* pixelformat: V4L2_PIX_FMT_YUV420 or _PWCX */
	int vframe_count;	/* received frames */
	int vmax_packet_size;	/* USB maxpacket size */
	int vlast_packet_size;	/* for frame synchronisation */
	int visoc_errors;	/* number of contiguous ISOC errors */
	int vbandlength;	/* compressed band length; 0 is uncompressed */
	char vsync;		/* used by isoc handler */
	char vmirror;		/* for ToUCaM series */
	char power_save;	/* Do powersaving for this cam */

	unsigned char cmd_buf[13];
	unsigned char *ctrl_buf;

	struct urb *urbs[MAX_ISO_BUFS];

	/*
	 * Frame currently being filled, this only gets touched by the
	 * isoc urb complete handler, and by stream start / stop since
	 * start / stop touch it before / after starting / killing the urbs
	 * no locking is needed around this
	 */
	struct pwc_frame_buf *fill_buf;

	int frame_header_size, frame_trailer_size;
	int frame_size;
	int frame_total_size;	/* including header & trailer */
	int drop_frames;

	union {	/* private data for decompression engine */
		struct pwc_dec1_private dec1;
		struct pwc_dec23_private dec23;
	};

	/*
	 * We have an 'image' and a 'view', where 'image' is the fixed-size img
	 * as delivered by the camera, and 'view' is the size requested by the
	 * program. The camera image is centered in this viewport, laced with
	 * a gray or black border. view_min <= image <= view <= view_max;
	 */
	int image_mask;				/* supported sizes */
	int width, height;			/* current resolution */

#ifdef CONFIG_USB_PWC_INPUT_EVDEV
	struct input_dev *button_dev;	/* webcam snapshot button input */
	char button_phys[64];
#endif

	/* controls */
	struct v4l2_ctrl_handler	ctrl_handler;
	u16				saturation_fmt;
	struct v4l2_ctrl		*brightness;
	struct v4l2_ctrl		*contrast;
	struct v4l2_ctrl		*saturation;
	struct v4l2_ctrl		*gamma;
	struct {
		/* awb / red-blue balance cluster */
		struct v4l2_ctrl	*auto_white_balance;
		struct v4l2_ctrl	*red_balance;
		struct v4l2_ctrl	*blue_balance;
		/* usb ctrl transfers are slow, so we cache things */
		int			color_bal_valid;
		unsigned long		last_color_bal_update; /* In jiffies */
		s32			last_red_balance;
		s32			last_blue_balance;
	};
	struct {
		/* autogain / gain cluster */
		struct v4l2_ctrl	*autogain;
		struct v4l2_ctrl	*gain;
		int			gain_valid;
		unsigned long		last_gain_update; /* In jiffies */
		s32			last_gain;
	};
	struct {
		/* exposure_auto / exposure cluster */
		struct v4l2_ctrl	*exposure_auto;
		struct v4l2_ctrl	*exposure;
		int			exposure_valid;
		unsigned long		last_exposure_update; /* In jiffies */
		s32			last_exposure;
	};
	struct v4l2_ctrl		*colorfx;
	struct {
		/* autocontour/contour cluster */
		struct v4l2_ctrl	*autocontour;
		struct v4l2_ctrl	*contour;
	};
	struct v4l2_ctrl		*backlight;
	struct v4l2_ctrl		*flicker;
	struct v4l2_ctrl		*noise_reduction;
	struct v4l2_ctrl		*save_user;
	struct v4l2_ctrl		*restore_user;
	struct v4l2_ctrl		*restore_factory;
	struct v4l2_ctrl		*awb_speed;
	struct v4l2_ctrl		*awb_delay;
	struct {
		/* motor control cluster */
		struct v4l2_ctrl	*motor_pan;
		struct v4l2_ctrl	*motor_tilt;
		struct v4l2_ctrl	*motor_pan_reset;
		struct v4l2_ctrl	*motor_tilt_reset;
	};
	/* CODEC3 models have both gain and exposure controlled by autogain */
	struct v4l2_ctrl		*autogain_expo_cluster[3];
};

/* Global variables */
#ifdef CONFIG_USB_PWC_DEBUG
extern int pwc_trace;
#endif

/** Functions in pwc-misc.c */
/* sizes in pixels */
extern const int pwc_image_sizes[PSZ_MAX][2];

int pwc_get_size(struct pwc_device *pdev, int width, int height);
void pwc_construct(struct pwc_device *pdev);

/** Functions in pwc-ctrl.c */
/* Request a certain video mode. Returns < 0 if not possible */
extern int pwc_set_video_mode(struct pwc_device *pdev, int width, int height,
	int pixfmt, int frames, int *compression, int send_to_cam);
extern unsigned int pwc_get_fps(struct pwc_device *pdev, unsigned int index, unsigned int size);
extern int pwc_set_leds(struct pwc_device *pdev, int on_value, int off_value);
extern int pwc_get_cmos_sensor(struct pwc_device *pdev, int *sensor);
extern int send_control_msg(struct pwc_device *pdev,
			    u8 request, u16 value, void *buf, int buflen);

/* Control get / set helpers */
int pwc_get_u8_ctrl(struct pwc_device *pdev, u8 request, u16 value, int *data);
int pwc_set_u8_ctrl(struct pwc_device *pdev, u8 request, u16 value, u8 data);
int pwc_get_s8_ctrl(struct pwc_device *pdev, u8 request, u16 value, int *data);
#define pwc_set_s8_ctrl pwc_set_u8_ctrl
int pwc_get_u16_ctrl(struct pwc_device *pdev, u8 request, u16 value, int *dat);
int pwc_set_u16_ctrl(struct pwc_device *pdev, u8 request, u16 value, u16 data);
int pwc_button_ctrl(struct pwc_device *pdev, u16 value);
int pwc_init_controls(struct pwc_device *pdev);

/* Power down or up the camera; not supported by all models */
extern void pwc_camera_power(struct pwc_device *pdev, int power);

extern const struct v4l2_ioctl_ops pwc_ioctl_ops;

/** pwc-uncompress.c */
/* Expand frame to image, possibly including decompression. Uses read_frame and fill_image */
int pwc_decompress(struct pwc_device *pdev, struct pwc_frame_buf *fbuf);

#endif
Commit	Line	Data
1da177e4	1	/* (C) 1999-2003 Nemosoft Unv.
2b455db6	2	(C) 2004-2006 Luc Saillard (luc@saillard.org)
1da177e4 LT	3
	4	NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx
	5	driver and thus may have bugs that are not present in the original version.
	6	Please send bug reports and support requests to <luc@saillard.org>.
	7	The decompression routines have been implemented by reverse-engineering the
	8	Nemosoft binary pwcx module. Caveat emptor.
	9
	10	This program is free software; you can redistribute it and/or modify
	11	it under the terms of the GNU General Public License as published by
	12	the Free Software Foundation; either version 2 of the License, or
	13	(at your option) any later version.
	14
	15	This program is distributed in the hope that it will be useful,
	16	but WITHOUT ANY WARRANTY; without even the implied warranty of
	17	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	18	GNU General Public License for more details.
	19
	20	You should have received a copy of the GNU General Public License
	21	along with this program; if not, write to the Free Software
	22	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	23	*/
	24
	25	#ifndef PWC_H
	26	#define PWC_H
	27
1da177e4 LT	28	#include <linux/module.h>
	29	#include <linux/usb.h>
	30	#include <linux/spinlock.h>
1da177e4	31	#include <linux/wait.h>
b9378fdb	32	#include <linux/mutex.h>
38413fd2	33	#include <linux/mm.h>
5a0e3ad6	34	#include <linux/slab.h>
1da177e4	35	#include <asm/errno.h>
479567ce	36	#include <linux/videodev2.h>
5e87efa3	37	#include <media/v4l2-common.h>
76ae8538	38	#include <media/v4l2-device.h>
35ea11ff	39	#include <media/v4l2-ioctl.h>
6c9cac89	40	#include <media/v4l2-ctrls.h>
76ae8538 HG	41	#include <media/v4l2-fh.h>
76ae8538 HG	42	#include <media/v4l2-event.h>
2d700715	43	#include <media/videobuf2-v4l2.h>
885fe18f	44	#include <media/videobuf2-vmalloc.h>
e32a7ecc NPT	45	#ifdef CONFIG_USB_PWC_INPUT_EVDEV
	46	#include <linux/input.h>
	47	#endif
56ae24aa HG	48	#include "pwc-dec1.h"
56ae24aa HG	49	#include "pwc-dec23.h"
1da177e4	50
2b455db6	51	/* Version block */
880c35c5	52	#define PWC_VERSION "10.0.15"
2b455db6 LS	53	#define PWC_NAME "pwc"
	54	#define PFX PWC_NAME ": "
	55
1da177e4 LT	56
1da177e4 LT	57	/* Trace certain actions in the driver */
2b455db6 LS	58	#define PWC_DEBUG_LEVEL_MODULE (1<<0)
	59	#define PWC_DEBUG_LEVEL_PROBE (1<<1)
	60	#define PWC_DEBUG_LEVEL_OPEN (1<<2)
	61	#define PWC_DEBUG_LEVEL_READ (1<<3)
	62	#define PWC_DEBUG_LEVEL_MEMORY (1<<4)
	63	#define PWC_DEBUG_LEVEL_FLOW (1<<5)
	64	#define PWC_DEBUG_LEVEL_SIZE (1<<6)
	65	#define PWC_DEBUG_LEVEL_IOCTL (1<<7)
	66	#define PWC_DEBUG_LEVEL_TRACE (1<<8)
	67
	68	#define PWC_DEBUG_MODULE(fmt, args...) PWC_DEBUG(MODULE, fmt, ##args)
	69	#define PWC_DEBUG_PROBE(fmt, args...) PWC_DEBUG(PROBE, fmt, ##args)
	70	#define PWC_DEBUG_OPEN(fmt, args...) PWC_DEBUG(OPEN, fmt, ##args)
	71	#define PWC_DEBUG_READ(fmt, args...) PWC_DEBUG(READ, fmt, ##args)
	72	#define PWC_DEBUG_MEMORY(fmt, args...) PWC_DEBUG(MEMORY, fmt, ##args)
	73	#define PWC_DEBUG_FLOW(fmt, args...) PWC_DEBUG(FLOW, fmt, ##args)
	74	#define PWC_DEBUG_SIZE(fmt, args...) PWC_DEBUG(SIZE, fmt, ##args)
	75	#define PWC_DEBUG_IOCTL(fmt, args...) PWC_DEBUG(IOCTL, fmt, ##args)
	76	#define PWC_DEBUG_TRACE(fmt, args...) PWC_DEBUG(TRACE, fmt, ##args)
	77
	78
05ad3907	79	#ifdef CONFIG_USB_PWC_DEBUG
2b455db6 LS	80
	81	#define PWC_DEBUG_LEVEL (PWC_DEBUG_LEVEL_MODULE)
	82
	83	#define PWC_DEBUG(level, fmt, args...) do {\
1a4ede65 HG	84	if ((PWC_DEBUG_LEVEL_ ##level) & pwc_trace) \
	85	printk(KERN_DEBUG PFX fmt, ##args); \
	86	} while (0)
2b455db6 LS	87
	88	#define PWC_ERROR(fmt, args...) printk(KERN_ERR PFX fmt, ##args)
	89	#define PWC_WARNING(fmt, args...) printk(KERN_WARNING PFX fmt, ##args)
	90	#define PWC_INFO(fmt, args...) printk(KERN_INFO PFX fmt, ##args)
	91	#define PWC_TRACE(fmt, args...) PWC_DEBUG(TRACE, fmt, ##args)
	92
9ee6d78c	93	#else /* if ! CONFIG_USB_PWC_DEBUG */
2b455db6 LS	94
	95	#define PWC_ERROR(fmt, args...) printk(KERN_ERR PFX fmt, ##args)
	96	#define PWC_WARNING(fmt, args...) printk(KERN_WARNING PFX fmt, ##args)
	97	#define PWC_INFO(fmt, args...) printk(KERN_INFO PFX fmt, ##args)
	98	#define PWC_TRACE(fmt, args...) do { } while(0)
	99	#define PWC_DEBUG(level, fmt, args...) do { } while(0)
	100
	101	#define pwc_trace 0
1da177e4	102
2b455db6	103	#endif
1da177e4 LT	104
	105	/* Defines for ToUCam cameras */
	106	#define TOUCAM_HEADER_SIZE 8
	107	#define TOUCAM_TRAILER_SIZE 4
	108
	109	#define FEATURE_MOTOR_PANTILT 0x0001
2b455db6 LS	110	#define FEATURE_CODEC1 0x0002
2b455db6 LS	111	#define FEATURE_CODEC2 0x0004
1da177e4	112
795e6eb3 HG	113	#define MAX_WIDTH 640
	114	#define MAX_HEIGHT 480
	115
1da177e4 LT	116	/* Ignore errors in the first N frames, to allow for startup delays */
	117	#define FRAME_LOWMARK 5
	118
	119	/* Size and number of buffers for the ISO pipe. */
885fe18f	120	#define MAX_ISO_BUFS 3
1da177e4 LT	121	#define ISO_FRAMES_PER_DESC 10
	122	#define ISO_MAX_FRAME_SIZE 960
	123	#define ISO_BUFFER_SIZE (ISO_FRAMES_PER_DESC * ISO_MAX_FRAME_SIZE)
	124
1da177e4 LT	125	/* Maximum size after decompression is 640x480 YUV data, 1.5 * 640 * 480 */
	126	#define PWC_FRAME_SIZE (460800 + TOUCAM_HEADER_SIZE + TOUCAM_TRAILER_SIZE)
	127
885fe18f HG	128	/* Absolute minimum and maximum number of buffers available for mmap() */
	129	#define MIN_FRAMES 2
	130	#define MAX_FRAMES 16
1da177e4	131
2b455db6 LS	132	/* Some macros to quickly find the type of a webcam */
	133	#define DEVICE_USE_CODEC1(x) ((x)<675)
	134	#define DEVICE_USE_CODEC2(x) ((x)>=675 && (x)<700)
	135	#define DEVICE_USE_CODEC3(x) ((x)>=700)
	136	#define DEVICE_USE_CODEC23(x) ((x)>=675)
	137
6c9cac89 HG	138	/* Request types: video */
	139	#define SET_LUM_CTL 0x01
	140	#define GET_LUM_CTL 0x02
	141	#define SET_CHROM_CTL 0x03
	142	#define GET_CHROM_CTL 0x04
	143	#define SET_STATUS_CTL 0x05
	144	#define GET_STATUS_CTL 0x06
	145	#define SET_EP_STREAM_CTL 0x07
	146	#define GET_EP_STREAM_CTL 0x08
	147	#define GET_XX_CTL 0x09
	148	#define SET_XX_CTL 0x0A
	149	#define GET_XY_CTL 0x0B
	150	#define SET_XY_CTL 0x0C
	151	#define SET_MPT_CTL 0x0D
	152	#define GET_MPT_CTL 0x0E
	153
	154	/* Selectors for the Luminance controls [GS]ET_LUM_CTL */
	155	#define AGC_MODE_FORMATTER 0x2000
	156	#define PRESET_AGC_FORMATTER 0x2100
	157	#define SHUTTER_MODE_FORMATTER 0x2200
	158	#define PRESET_SHUTTER_FORMATTER 0x2300
	159	#define PRESET_CONTOUR_FORMATTER 0x2400
	160	#define AUTO_CONTOUR_FORMATTER 0x2500
	161	#define BACK_LIGHT_COMPENSATION_FORMATTER 0x2600
	162	#define CONTRAST_FORMATTER 0x2700
	163	#define DYNAMIC_NOISE_CONTROL_FORMATTER 0x2800
	164	#define FLICKERLESS_MODE_FORMATTER 0x2900
	165	#define AE_CONTROL_SPEED 0x2A00
	166	#define BRIGHTNESS_FORMATTER 0x2B00
	167	#define GAMMA_FORMATTER 0x2C00
	168
	169	/* Selectors for the Chrominance controls [GS]ET_CHROM_CTL */
	170	#define WB_MODE_FORMATTER 0x1000
	171	#define AWB_CONTROL_SPEED_FORMATTER 0x1100
	172	#define AWB_CONTROL_DELAY_FORMATTER 0x1200
	173	#define PRESET_MANUAL_RED_GAIN_FORMATTER 0x1300
	174	#define PRESET_MANUAL_BLUE_GAIN_FORMATTER 0x1400
	175	#define COLOUR_MODE_FORMATTER 0x1500
	176	#define SATURATION_MODE_FORMATTER1 0x1600
	177	#define SATURATION_MODE_FORMATTER2 0x1700
	178
	179	/* Selectors for the Status controls [GS]ET_STATUS_CTL */
	180	#define SAVE_USER_DEFAULTS_FORMATTER 0x0200
	181	#define RESTORE_USER_DEFAULTS_FORMATTER 0x0300
	182	#define RESTORE_FACTORY_DEFAULTS_FORMATTER 0x0400
	183	#define READ_AGC_FORMATTER 0x0500
	184	#define READ_SHUTTER_FORMATTER 0x0600
	185	#define READ_RED_GAIN_FORMATTER 0x0700
	186	#define READ_BLUE_GAIN_FORMATTER 0x0800
	187
	188	/* Formatters for the motorized pan & tilt [GS]ET_MPT_CTL */
	189	#define PT_RELATIVE_CONTROL_FORMATTER 0x01
	190	#define PT_RESET_CONTROL_FORMATTER 0x02
	191	#define PT_STATUS_FORMATTER 0x03
	192
a08d2c72 HG	193	/* Enumeration of image sizes */
	194	#define PSZ_SQCIF 0x00
	195	#define PSZ_QSIF 0x01
	196	#define PSZ_QCIF 0x02
	197	#define PSZ_SIF 0x03
	198	#define PSZ_CIF 0x04
	199	#define PSZ_VGA 0x05
	200	#define PSZ_MAX 6
	201
	202	struct pwc_raw_frame {
	203	__le16 type; /* type of the webcam */
	204	__le16 vbandlength; /* Size of 4 lines compressed (used by the
	205	decompressor) */
	206	__u8 cmd[4]; /* the four byte of the command (in case of
	207	nala, only the first 3 bytes is filled) */
	208	__u8 rawframe[0]; /* frame_size = H / 4 * vbandlength */
	209	} __packed;
	210
1da177e4 LT	211	/* intermediate buffers with raw data from the USB cam */
	212	struct pwc_frame_buf
	213	{
2d700715 JS	214	/* common v4l buffer stuff -- must be first */
2d700715 JS	215	struct vb2_v4l2_buffer vb;
885fe18f HG	216	struct list_head list;
	217	void *data;
	218	int filled; /* number of bytes filled */
1da177e4 LT	219	};
	220
	221	struct pwc_device
	222	{
9a7b2d1f	223	struct video_device vdev;
76ae8538	224	struct v4l2_device v4l2_dev;
1a4ede65	225
ceede9fa HG	226	/* videobuf2 queue and queued buffers list */
	227	struct vb2_queue vb_queue;
	228	struct list_head queued_bufs;
	229	spinlock_t queued_bufs_lock; /* Protects queued_bufs */
	230
cd5de262	231	/* If taking both locks vb_queue_lock must always be locked first! */
ceede9fa HG	232	struct mutex v4l2_lock; /* Protects everything else */
	233	struct mutex vb_queue_lock; /* Protects vb_queue and capt_file */
	234
	235	/* Pointer to our usb_device, will be NULL after unplug */
	236	struct usb_device udev; / Both mutexes most be hold when setting! */
c1127134	237
1a4ede65 HG	238	/* type of cam (645, 646, 675, 680, 690, 720, 730, 740, 750) */
	239	int type;
	240	int release; /* release number */
	241	int features; /* feature bits */
1a4ede65 HG	242
1a4ede65 HG	243	/* Video data */
1a4ede65 HG	244	int vendpoint; /* video isoc endpoint */
	245	int vcinterface; /* video control interface */
	246	int valternate; /* alternate interface needed */
dc8a7e83	247	int vframes; /* frames-per-second */
1a4ede65 HG	248	int pixfmt; /* pixelformat: V4L2_PIX_FMT_YUV420 or _PWCX */
	249	int vframe_count; /* received frames */
	250	int vmax_packet_size; /* USB maxpacket size */
	251	int vlast_packet_size; /* for frame synchronisation */
	252	int visoc_errors; /* number of contiguous ISOC errors */
1a4ede65	253	int vbandlength; /* compressed band length; 0 is uncompressed */
1a4ede65 HG	254	char vsync; /* used by isoc handler */
1a4ede65 HG	255	char vmirror; /* for ToUCaM series */
3b4d0ec7	256	char power_save; /* Do powersaving for this cam */
d56410e0	257
1a4ede65	258	unsigned char cmd_buf[13];
24be689b	259	unsigned char *ctrl_buf;
1da177e4	260
04613c5e	261	struct urb *urbs[MAX_ISO_BUFS];
885fe18f HG	262
	263	/*
	264	* Frame currently being filled, this only gets touched by the
	265	* isoc urb complete handler, and by stream start / stop since
	266	* start / stop touch it before / after starting / killing the urbs
	267	* no locking is needed around this
	268	*/
	269	struct pwc_frame_buf *fill_buf;
	270
1a4ede65 HG	271	int frame_header_size, frame_trailer_size;
	272	int frame_size;
	273	int frame_total_size; /* including header & trailer */
	274	int drop_frames;
	275
56ae24aa HG	276	union { /* private data for decompression engine */
	277	struct pwc_dec1_private dec1;
	278	struct pwc_dec23_private dec23;
	279	};
1a4ede65 HG	280
	281	/*
	282	* We have an 'image' and a 'view', where 'image' is the fixed-size img
	283	* as delivered by the camera, and 'view' is the size requested by the
	284	* program. The camera image is centered in this viewport, laced with
	285	* a gray or black border. view_min <= image <= view <= view_max;
	286	*/
	287	int image_mask; /* supported sizes */
795e6eb3	288	int width, height; /* current resolution */
1a4ede65	289
e32a7ecc	290	#ifdef CONFIG_USB_PWC_INPUT_EVDEV
1a4ede65 HG	291	struct input_dev button_dev; / webcam snapshot button input */
1a4ede65 HG	292	char button_phys[64];
e32a7ecc	293	#endif
6c9cac89 HG	294
	295	/* controls */
	296	struct v4l2_ctrl_handler ctrl_handler;
	297	u16 saturation_fmt;
	298	struct v4l2_ctrl *brightness;
	299	struct v4l2_ctrl *contrast;
	300	struct v4l2_ctrl *saturation;
	301	struct v4l2_ctrl *gamma;
	302	struct {
	303	/* awb / red-blue balance cluster */
	304	struct v4l2_ctrl *auto_white_balance;
	305	struct v4l2_ctrl *red_balance;
	306	struct v4l2_ctrl *blue_balance;
	307	/* usb ctrl transfers are slow, so we cache things */
	308	int color_bal_valid;
	309	unsigned long last_color_bal_update; /* In jiffies */
	310	s32 last_red_balance;
	311	s32 last_blue_balance;
	312	};
	313	struct {
	314	/* autogain / gain cluster */
	315	struct v4l2_ctrl *autogain;
	316	struct v4l2_ctrl *gain;
	317	int gain_valid;
	318	unsigned long last_gain_update; /* In jiffies */
	319	s32 last_gain;
	320	};
	321	struct {
	322	/* exposure_auto / exposure cluster */
	323	struct v4l2_ctrl *exposure_auto;
	324	struct v4l2_ctrl *exposure;
	325	int exposure_valid;
	326	unsigned long last_exposure_update; /* In jiffies */
	327	s32 last_exposure;
	328	};
	329	struct v4l2_ctrl *colorfx;
	330	struct {
	331	/* autocontour/contour cluster */
	332	struct v4l2_ctrl *autocontour;
	333	struct v4l2_ctrl *contour;
	334	};
	335	struct v4l2_ctrl *backlight;
	336	struct v4l2_ctrl *flicker;
	337	struct v4l2_ctrl *noise_reduction;
	338	struct v4l2_ctrl *save_user;
	339	struct v4l2_ctrl *restore_user;
	340	struct v4l2_ctrl *restore_factory;
f4af6595 HG	341	struct v4l2_ctrl *awb_speed;
f4af6595 HG	342	struct v4l2_ctrl *awb_delay;
294e2896 HG	343	struct {
	344	/* motor control cluster */
	345	struct v4l2_ctrl *motor_pan;
	346	struct v4l2_ctrl *motor_tilt;
	347	struct v4l2_ctrl *motor_pan_reset;
	348	struct v4l2_ctrl *motor_tilt_reset;
	349	};
6c9cac89 HG	350	/* CODEC3 models have both gain and exposure controlled by autogain */
6c9cac89 HG	351	struct v4l2_ctrl *autogain_expo_cluster[3];
1da177e4 LT	352	};
1da177e4 LT	353
2b455db6	354	/* Global variables */
05ad3907	355	#ifdef CONFIG_USB_PWC_DEBUG
1da177e4	356	extern int pwc_trace;
2b455db6	357	#endif
1da177e4 LT	358
	359	/** Functions in pwc-misc.c */
	360	/* sizes in pixels */
795e6eb3	361	extern const int pwc_image_sizes[PSZ_MAX][2];
1da177e4	362
795e6eb3	363	int pwc_get_size(struct pwc_device *pdev, int width, int height);
1da177e4 LT	364	void pwc_construct(struct pwc_device *pdev);
	365
	366	/** Functions in pwc-ctrl.c */
	367	/* Request a certain video mode. Returns < 0 if not possible */
dc8a7e83	368	extern int pwc_set_video_mode(struct pwc_device *pdev, int width, int height,
938d5b9e	369	int pixfmt, int frames, int *compression, int send_to_cam);
9ee6d78c	370	extern unsigned int pwc_get_fps(struct pwc_device *pdev, unsigned int index, unsigned int size);
1da177e4	371	extern int pwc_set_leds(struct pwc_device *pdev, int on_value, int off_value);
1da177e4	372	extern int pwc_get_cmos_sensor(struct pwc_device pdev, int sensor);
294e2896 HG	373	extern int send_control_msg(struct pwc_device *pdev,
294e2896 HG	374	u8 request, u16 value, void *buf, int buflen);
6c9cac89 HG	375
	376	/* Control get / set helpers */
	377	int pwc_get_u8_ctrl(struct pwc_device pdev, u8 request, u16 value, int data);
	378	int pwc_set_u8_ctrl(struct pwc_device *pdev, u8 request, u16 value, u8 data);
	379	int pwc_get_s8_ctrl(struct pwc_device pdev, u8 request, u16 value, int data);
	380	#define pwc_set_s8_ctrl pwc_set_u8_ctrl
	381	int pwc_get_u16_ctrl(struct pwc_device pdev, u8 request, u16 value, int dat);
	382	int pwc_set_u16_ctrl(struct pwc_device *pdev, u8 request, u16 value, u16 data);
	383	int pwc_button_ctrl(struct pwc_device *pdev, u16 value);
	384	int pwc_init_controls(struct pwc_device *pdev);
1da177e4 LT	385
1da177e4 LT	386	/* Power down or up the camera; not supported by all models */
3b4d0ec7	387	extern void pwc_camera_power(struct pwc_device *pdev, int power);
1da177e4	388
afa38521	389	extern const struct v4l2_ioctl_ops pwc_ioctl_ops;
1da177e4 LT	390
	391	/** pwc-uncompress.c */
	392	/* Expand frame to image, possibly including decompression. Uses read_frame and fill_image */
885fe18f	393	int pwc_decompress(struct pwc_device pdev, struct pwc_frame_buf fbuf);
1da177e4	394
1da177e4	395	#endif