[deliverable/linux.git] / drivers / media / video / em28xx / em28xx.h

/*
   em28xx.h - driver for Empia EM2800/EM2820/2840 USB video capture devices

   Copyright (C) 2005 Markus Rechberger <mrechberger@gmail.com>
		      Ludovico Cavedon <cavedon@sssup.it>
		      Mauro Carvalho Chehab <mchehab@infradead.org>

   Based on the em2800 driver from Sascha Sommer <saschasommer@freenet.de>

   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., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#ifndef _EM28XX_H
#define _EM28XX_H

#include <linux/videodev2.h>
#include <media/videobuf-vmalloc.h>

#include <linux/i2c.h>
#include <linux/mutex.h>
#include <media/ir-kbd-i2c.h>
#if defined(CONFIG_VIDEO_EM28XX_DVB) || defined(CONFIG_VIDEO_EM28XX_DVB_MODULE)
#include <media/videobuf-dvb.h>
#endif

/* Boards supported by driver */
#define EM2800_BOARD_UNKNOWN			0
#define EM2820_BOARD_UNKNOWN			1
#define EM2820_BOARD_TERRATEC_CINERGY_250	2
#define EM2820_BOARD_PINNACLE_USB_2		3
#define EM2820_BOARD_HAUPPAUGE_WINTV_USB_2      4
#define EM2820_BOARD_MSI_VOX_USB_2              5
#define EM2800_BOARD_TERRATEC_CINERGY_200       6
#define EM2800_BOARD_LEADTEK_WINFAST_USBII      7
#define EM2800_BOARD_KWORLD_USB2800             8
#define EM2820_BOARD_PINNACLE_DVC_90		9
#define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900	10
#define EM2880_BOARD_TERRATEC_HYBRID_XS		11
#define EM2820_BOARD_KWORLD_PVRTV2800RF		12
#define EM2880_BOARD_TERRATEC_PRODIGY_XS	13
#define EM2820_BOARD_PROLINK_PLAYTV_USB2	14
#define EM2800_BOARD_VGEAR_POCKETTV             15
#define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_950	16

/* Limits minimum and default number of buffers */
#define EM28XX_MIN_BUF 4
#define EM28XX_DEF_BUF 8

/* maximum number of em28xx boards */
#define EM28XX_MAXBOARDS 4 /*FIXME: should be bigger */

/* maximum number of frames that can be queued */
#define EM28XX_NUM_FRAMES 5
/* number of frames that get used for v4l2_read() */
#define EM28XX_NUM_READ_FRAMES 2

/* number of buffers for isoc transfers */
#define EM28XX_NUM_BUFS 5

/* number of packets for each buffer
   windows requests only 40 packets .. so we better do the same
   this is what I found out for all alternate numbers there!
 */
#define EM28XX_NUM_PACKETS 40

/* default alternate; 0 means choose the best */
#define EM28XX_PINOUT 0

#define EM28XX_INTERLACED_DEFAULT 1

/*
#define (use usbview if you want to get the other alternate number infos)
#define
#define alternate number 2
#define 			Endpoint Address: 82
			Direction: in
			Attribute: 1
			Type: Isoc
			Max Packet Size: 1448
			Interval: 125us

  alternate number 7

			Endpoint Address: 82
			Direction: in
			Attribute: 1
			Type: Isoc
			Max Packet Size: 3072
			Interval: 125us
*/

/* time to wait when stopping the isoc transfer */
#define EM28XX_URB_TIMEOUT       msecs_to_jiffies(EM28XX_NUM_BUFS * EM28XX_NUM_PACKETS)

/* time in msecs to wait for i2c writes to finish */
#define EM2800_I2C_WRITE_TIMEOUT 20

enum em28xx_mode {
	EM28XX_ANALOG_MODE,
	EM28XX_DIGITAL_MODE,
};

enum em28xx_stream_state {
	STREAM_OFF,
	STREAM_INTERRUPT,
	STREAM_ON,
};

struct em28xx_usb_isoc_ctl {
		/* max packet size of isoc transaction */
	int				max_pkt_size;

		/* number of allocated urbs */
	int				num_bufs;

		/* urb for isoc transfers */
	struct urb			**urb;

		/* transfer buffers for isoc transfer */
	char				**transfer_buffer;

		/* Last buffer command and region */
	u8				cmd;
	int				pos, size, pktsize;

		/* Last field: ODD or EVEN? */
	int				field;

		/* Stores incomplete commands */
	u32				tmp_buf;
	int				tmp_buf_len;

		/* Stores already requested buffers */
	struct em28xx_buffer    	*buf;

		/* Stores the number of received fields */
	int				nfields;
};

struct em28xx_fmt {
	char  *name;
	u32   fourcc;          /* v4l2 format id */
};

/* buffer for one video frame */
struct em28xx_buffer {
	/* common v4l buffer stuff -- must be first */
	struct videobuf_buffer vb;

	struct list_head frame;
	int top_field;
	int receiving;
};

struct em28xx_dmaqueue {
	struct list_head       active;
	struct list_head       queued;

	wait_queue_head_t          wq;

	/* Counters to control buffer fill */
	int                        pos;
};

/* io methods */
enum em28xx_io_method {
	IO_NONE,
	IO_READ,
	IO_MMAP,
};

/* inputs */

#define MAX_EM28XX_INPUT 4
enum enum28xx_itype {
	EM28XX_VMUX_COMPOSITE1 = 1,
	EM28XX_VMUX_COMPOSITE2,
	EM28XX_VMUX_COMPOSITE3,
	EM28XX_VMUX_COMPOSITE4,
	EM28XX_VMUX_SVIDEO,
	EM28XX_VMUX_TELEVISION,
	EM28XX_VMUX_CABLE,
	EM28XX_VMUX_DVB,
	EM28XX_VMUX_DEBUG,
	EM28XX_RADIO,
};

enum em28xx_amux {
	EM28XX_AMUX_VIDEO,
	EM28XX_AMUX_LINE_IN,
	EM28XX_AMUX_AC97_VIDEO,
	EM28XX_AMUX_AC97_LINE_IN,
};

struct em28xx_input {
	enum enum28xx_itype type;
	unsigned int vmux;
	enum em28xx_amux amux;
};

#define INPUT(nr) (&em28xx_boards[dev->model].input[nr])

enum em28xx_decoder {
	EM28XX_TVP5150,
	EM28XX_SAA7113,
	EM28XX_SAA7114
};

#define MAX_GPIO 2
struct gpio_ctl {
		/* Register to be set */
	unsigned char reg;
		/* Initial/final value */
	unsigned char val;
		/* reset value - if set, it will do:
		   val1 - val2 - val1
		 */
	unsigned char rst;
		/* Sleep times
		 */
	unsigned int  t1, t2, t3;
};

struct em28xx_board {
	char *name;
	int vchannels;
	int tuner_type;

	/* i2c flags */
	unsigned int tda9887_conf;

	unsigned int is_em2800:1;
	unsigned int has_msp34xx:1;
	unsigned int mts_firmware:1;
	unsigned int has_12mhz_i2s:1;
	unsigned int max_range_640_480:1;
	unsigned int has_dvb:1;

	struct gpio_ctl analog_gpio[MAX_GPIO];
	struct gpio_ctl digital_gpio[MAX_GPIO];

	enum em28xx_decoder decoder;

	struct em28xx_input       input[MAX_EM28XX_INPUT];
	struct em28xx_input	  radio;
};

struct em28xx_eeprom {
	u32 id;			/* 0x9567eb1a */
	u16 vendor_ID;
	u16 product_ID;

	u16 chip_conf;

	u16 board_conf;

	u16 string1, string2, string3;

	u8 string_idx_table;
};

/* device states */
enum em28xx_dev_state {
	DEV_INITIALIZED = 0x01,
	DEV_DISCONNECTED = 0x02,
	DEV_MISCONFIGURED = 0x04,
};

#define EM28XX_AUDIO_BUFS 5
#define EM28XX_NUM_AUDIO_PACKETS 64
#define EM28XX_AUDIO_MAX_PACKET_SIZE 196 /* static value */
#define EM28XX_CAPTURE_STREAM_EN 1

/* em28xx extensions */
#define EM28XX_AUDIO   0x10
#define EM28XX_DVB     0x20

struct em28xx_audio {
	char name[50];
	char *transfer_buffer[EM28XX_AUDIO_BUFS];
	struct urb *urb[EM28XX_AUDIO_BUFS];
	struct usb_device *udev;
	unsigned int capture_transfer_done;
	struct snd_pcm_substream   *capture_pcm_substream;

	unsigned int hwptr_done_capture;
	struct snd_card            *sndcard;

	int users, shutdown;
	enum em28xx_stream_state capture_stream;
	spinlock_t slock;
};

/* main device struct */
struct em28xx {
	/* generic device properties */
	char name[30];		/* name (including minor) of the device */
	int model;		/* index in the device_data struct */
	int devno;		/* marks the number of this device */
	unsigned int is_em2800:1;
	unsigned int has_msp34xx:1;
	unsigned int has_tda9887:1;
	unsigned int stream_on:1;	/* Locks streams */
	unsigned int has_audio_class:1;
	unsigned int has_12mhz_i2s:1;
	unsigned int max_range_640_480:1;
	unsigned int has_dvb:1;

	struct gpio_ctl (*analog_gpio)[MAX_GPIO];
	struct gpio_ctl (*digital_gpio)[MAX_GPIO];

	int video_inputs;	/* number of video inputs */
	struct list_head	devlist;

	u32 i2s_speed;		/* I2S speed for audio digital stream */

	enum em28xx_decoder decoder;

	int tuner_type;		/* type of the tuner */
	int tuner_addr;		/* tuner address */
	int tda9887_conf;
	/* i2c i/o */
	struct i2c_adapter i2c_adap;
	struct i2c_client i2c_client;
	/* video for linux */
	int users;		/* user count for exclusive use */
	struct video_device *vdev;	/* video for linux device struct */
	v4l2_std_id norm;	/* selected tv norm */
	int ctl_freq;		/* selected frequency */
	unsigned int ctl_input;	/* selected input */
	unsigned int ctl_ainput;	/* slected audio input */
	int mute;
	int volume;
	/* frame properties */
	int width;		/* current frame width */
	int height;		/* current frame height */
	int hscale;		/* horizontal scale factor (see datasheet) */
	int vscale;		/* vertical scale factor (see datasheet) */
	int interlaced;		/* 1=interlace fileds, 0=just top fileds */
	unsigned int video_bytesread;	/* Number of bytes read */

	unsigned long hash;	/* eeprom hash - for boards with generic ID */
	unsigned long i2c_hash;	/* i2c devicelist hash - for boards with generic ID */

	struct em28xx_audio *adev;

	/* states */
	enum em28xx_dev_state state;
	enum em28xx_io_method io;

	struct work_struct         request_module_wk;

	/* locks */
	struct mutex lock;
	/* spinlock_t queue_lock; */
	struct list_head inqueue, outqueue;
	wait_queue_head_t open, wait_frame, wait_stream;
	struct video_device *vbi_dev;
	struct video_device *radio_dev;

	unsigned char eedata[256];

	/* Isoc control struct */
	struct em28xx_dmaqueue vidq;
	struct em28xx_usb_isoc_ctl isoc_ctl;
	spinlock_t slock;

	/* usb transfer */
	struct usb_device *udev;	/* the usb device */
	int alt;		/* alternate */
	int max_pkt_size;	/* max packet size of isoc transaction */
	int num_alt;		/* Number of alternative settings */
	unsigned int *alt_max_pkt_size;	/* array of wMaxPacketSize */
	struct urb *urb[EM28XX_NUM_BUFS];	/* urb for isoc transfers */
	char *transfer_buffer[EM28XX_NUM_BUFS];	/* transfer buffers for isoc transfer */
	/* helper funcs that call usb_control_msg */
	int (*em28xx_write_regs) (struct em28xx * dev, u16 reg, char *buf,
				  int len);
	int (*em28xx_read_reg) (struct em28xx * dev, u16 reg);
	int (*em28xx_read_reg_req_len) (struct em28xx * dev, u8 req, u16 reg,
					char *buf, int len);
	int (*em28xx_write_regs_req) (struct em28xx * dev, u8 req, u16 reg,
				      char *buf, int len);
	int (*em28xx_read_reg_req) (struct em28xx * dev, u8 req, u16 reg);

	enum em28xx_mode mode;

#if defined(CONFIG_VIDEO_EM28XX_DVB) || defined(CONFIG_VIDEO_EM28XX_DVB_MODULE)
	struct videobuf_dvb        dvb;
	struct videobuf_queue_ops  *qops;
#endif
};

struct em28xx_fh {
	struct em28xx *dev;
	unsigned int  stream_on:1;	/* Locks streams */
	int           radio;

	struct videobuf_queue        vb_vidq;

	enum v4l2_buf_type           type;
};

struct em28xx_ops {
	struct list_head next;
	char *name;
	int id;
	int (*init)(struct em28xx *);
	int (*fini)(struct em28xx *);
};

/* Provided by em28xx-i2c.c */

void em28xx_i2c_call_clients(struct em28xx *dev, unsigned int cmd, void *arg);
void em28xx_do_i2c_scan(struct em28xx *dev);
int em28xx_i2c_register(struct em28xx *dev);
int em28xx_i2c_unregister(struct em28xx *dev);

/* Provided by em28xx-core.c */

u32 em28xx_request_buffers(struct em28xx *dev, u32 count);
void em28xx_queue_unusedframes(struct em28xx *dev);
void em28xx_release_buffers(struct em28xx *dev);

int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg,
			    char *buf, int len);
int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg);
int em28xx_read_reg(struct em28xx *dev, u16 reg);
int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf,
			  int len);
int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len);
int em28xx_audio_analog_set(struct em28xx *dev);

int em28xx_colorlevels_set_default(struct em28xx *dev);
int em28xx_capture_start(struct em28xx *dev, int start);
int em28xx_outfmt_set_yuv422(struct em28xx *dev);
int em28xx_resolution_set(struct em28xx *dev);
int em28xx_set_alternate(struct em28xx *dev);

/* Provided by em28xx-video.c */
int em28xx_register_extension(struct em28xx_ops *dev);
void em28xx_unregister_extension(struct em28xx_ops *dev);

/* Provided by em28xx-cards.c */
extern int em2800_variant_detect(struct usb_device* udev,int model);
extern void em28xx_pre_card_setup(struct em28xx *dev);
extern void em28xx_card_setup(struct em28xx *dev);
extern struct em28xx_board em28xx_boards[];
extern struct usb_device_id em28xx_id_table[];
extern const unsigned int em28xx_bcount;
void em28xx_set_ir(struct em28xx *dev, struct IR_i2c *ir);
int em28xx_tuner_callback(void *ptr, int command, int arg);

/* Provided by em28xx-input.c */
/* TODO: Check if the standard get_key handlers on ir-common can be used */
int em28xx_get_key_terratec(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw);
int em28xx_get_key_em_haup(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw);
int em28xx_get_key_pinnacle_usb_grey(struct IR_i2c *ir, u32 *ir_key,
				     u32 *ir_raw);

/* em2800 registers */
#define EM2800_AUDIOSRC_REG 0x08

/* em28xx registers */
#define I2C_CLK_REG	0x06
#define CHIPID_REG	0x0a
#define USBSUSP_REG	0x0c	/* */

#define AUDIOSRC_REG	0x0e
#define XCLK_REG	0x0f

#define VINMODE_REG	0x10
#define VINCTRL_REG	0x11
#define VINENABLE_REG	0x12	/* */

#define GAMMA_REG	0x14
#define RGAIN_REG	0x15
#define GGAIN_REG	0x16
#define BGAIN_REG	0x17
#define ROFFSET_REG	0x18
#define GOFFSET_REG	0x19
#define BOFFSET_REG	0x1a

#define OFLOW_REG	0x1b
#define HSTART_REG	0x1c
#define VSTART_REG	0x1d
#define CWIDTH_REG	0x1e
#define CHEIGHT_REG	0x1f

#define YGAIN_REG	0x20
#define YOFFSET_REG	0x21
#define UVGAIN_REG	0x22
#define UOFFSET_REG	0x23
#define VOFFSET_REG	0x24
#define SHARPNESS_REG	0x25

#define COMPR_REG	0x26
#define OUTFMT_REG	0x27

#define XMIN_REG	0x28
#define XMAX_REG	0x29
#define YMIN_REG	0x2a
#define YMAX_REG	0x2b

#define HSCALELOW_REG	0x30
#define HSCALEHIGH_REG	0x31
#define VSCALELOW_REG	0x32
#define VSCALEHIGH_REG	0x33

#define AC97LSB_REG	0x40
#define AC97MSB_REG	0x41
#define AC97ADDR_REG	0x42
#define AC97BUSY_REG	0x43

/* em202 registers */
#define MASTER_AC97	0x02
#define LINE_IN_AC97    0x10
#define VIDEO_AC97	0x14

/* register settings */
#define EM2800_AUDIO_SRC_TUNER  0x0d
#define EM2800_AUDIO_SRC_LINE   0x0c
#define EM28XX_AUDIO_SRC_TUNER	0xc0
#define EM28XX_AUDIO_SRC_LINE	0x80

/* printk macros */

#define em28xx_err(fmt, arg...) do {\
	printk(KERN_ERR fmt , ##arg); } while (0)

#define em28xx_errdev(fmt, arg...) do {\
	printk(KERN_ERR "%s: "fmt,\
			dev->name , ##arg); } while (0)

#define em28xx_info(fmt, arg...) do {\
	printk(KERN_INFO "%s: "fmt,\
			dev->name , ##arg); } while (0)
#define em28xx_warn(fmt, arg...) do {\
	printk(KERN_WARNING "%s: "fmt,\
			dev->name , ##arg); } while (0)

inline static int em28xx_compression_disable(struct em28xx *dev)
{
	/* side effect of disabling scaler and mixer */
	return em28xx_write_regs(dev, COMPR_REG, "\x00", 1);
}

inline static int em28xx_contrast_get(struct em28xx *dev)
{
	return em28xx_read_reg(dev, YGAIN_REG) & 0x1f;
}

inline static int em28xx_brightness_get(struct em28xx *dev)
{
	return em28xx_read_reg(dev, YOFFSET_REG);
}

inline static int em28xx_saturation_get(struct em28xx *dev)
{
	return em28xx_read_reg(dev, UVGAIN_REG) & 0x1f;
}

inline static int em28xx_u_balance_get(struct em28xx *dev)
{
	return em28xx_read_reg(dev, UOFFSET_REG);
}

inline static int em28xx_v_balance_get(struct em28xx *dev)
{
	return em28xx_read_reg(dev, VOFFSET_REG);
}

inline static int em28xx_gamma_get(struct em28xx *dev)
{
	return em28xx_read_reg(dev, GAMMA_REG) & 0x3f;
}

inline static int em28xx_contrast_set(struct em28xx *dev, s32 val)
{
	u8 tmp = (u8) val;
	return em28xx_write_regs(dev, YGAIN_REG, &tmp, 1);
}

inline static int em28xx_brightness_set(struct em28xx *dev, s32 val)
{
	u8 tmp = (u8) val;
	return em28xx_write_regs(dev, YOFFSET_REG, &tmp, 1);
}

inline static int em28xx_saturation_set(struct em28xx *dev, s32 val)
{
	u8 tmp = (u8) val;
	return em28xx_write_regs(dev, UVGAIN_REG, &tmp, 1);
}

inline static int em28xx_u_balance_set(struct em28xx *dev, s32 val)
{
	u8 tmp = (u8) val;
	return em28xx_write_regs(dev, UOFFSET_REG, &tmp, 1);
}

inline static int em28xx_v_balance_set(struct em28xx *dev, s32 val)
{
	u8 tmp = (u8) val;
	return em28xx_write_regs(dev, VOFFSET_REG, &tmp, 1);
}

inline static int em28xx_gamma_set(struct em28xx *dev, s32 val)
{
	u8 tmp = (u8) val;
	return em28xx_write_regs(dev, GAMMA_REG, &tmp, 1);
}

/*FIXME: maxw should be dependent of alt mode */
inline static unsigned int norm_maxw(struct em28xx *dev)
{
	if (dev->max_range_640_480)
		return 640;
	else
		return 720;
}

inline static unsigned int norm_maxh(struct em28xx *dev)
{
	if (dev->max_range_640_480)
		return 480;
	else
		return (dev->norm & V4L2_STD_625_50) ? 576 : 480;
}
#endif
Commit	Line	Data
a6c2ba28	1	/*
0e7072ef	2	em28xx.h - driver for Empia EM2800/EM2820/2840 USB video capture devices
a6c2ba28	3
a6c2ba28	4	Copyright (C) 2005 Markus Rechberger <mrechberger@gmail.com>
4ac97914	5	Ludovico Cavedon <cavedon@sssup.it>
2e7c6dc3	6	Mauro Carvalho Chehab <mchehab@infradead.org>
a6c2ba28	7
	8	Based on the em2800 driver from Sascha Sommer <saschasommer@freenet.de>
	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., 675 Mass Ave, Cambridge, MA 02139, USA.
	23	*/
	24
3acf2809 MCC	25	#ifndef _EM28XX_H
3acf2809 MCC	26	#define _EM28XX_H
a6c2ba28	27
cb77d010	28	#include <linux/videodev2.h>
ad0ebb96 MCC	29	#include <media/videobuf-vmalloc.h>
ad0ebb96 MCC	30
a6c2ba28	31	#include <linux/i2c.h>
3593cab5	32	#include <linux/mutex.h>
d5e52653	33	#include <media/ir-kbd-i2c.h>
3aefb79a MCC	34	#if defined(CONFIG_VIDEO_EM28XX_DVB) \|\| defined(CONFIG_VIDEO_EM28XX_DVB_MODULE)
	35	#include <media/videobuf-dvb.h>
	36	#endif
	37
	38	/* Boards supported by driver */
	39	#define EM2800_BOARD_UNKNOWN 0
	40	#define EM2820_BOARD_UNKNOWN 1
	41	#define EM2820_BOARD_TERRATEC_CINERGY_250 2
	42	#define EM2820_BOARD_PINNACLE_USB_2 3
	43	#define EM2820_BOARD_HAUPPAUGE_WINTV_USB_2 4
	44	#define EM2820_BOARD_MSI_VOX_USB_2 5
	45	#define EM2800_BOARD_TERRATEC_CINERGY_200 6
	46	#define EM2800_BOARD_LEADTEK_WINFAST_USBII 7
	47	#define EM2800_BOARD_KWORLD_USB2800 8
	48	#define EM2820_BOARD_PINNACLE_DVC_90 9
	49	#define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900 10
	50	#define EM2880_BOARD_TERRATEC_HYBRID_XS 11
	51	#define EM2820_BOARD_KWORLD_PVRTV2800RF 12
	52	#define EM2880_BOARD_TERRATEC_PRODIGY_XS 13
	53	#define EM2820_BOARD_PROLINK_PLAYTV_USB2 14
	54	#define EM2800_BOARD_VGEAR_POCKETTV 15
	55	#define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_950 16
	56
	57	/* Limits minimum and default number of buffers */
	58	#define EM28XX_MIN_BUF 4
	59	#define EM28XX_DEF_BUF 8
a6c2ba28	60
596d92d5	61	/* maximum number of em28xx boards */
3687e1e6	62	#define EM28XX_MAXBOARDS 4 /FIXME: should be bigger /
596d92d5	63
a6c2ba28	64	/* maximum number of frames that can be queued */
3acf2809	65	#define EM28XX_NUM_FRAMES 5
a6c2ba28	66	/* number of frames that get used for v4l2_read() */
3acf2809	67	#define EM28XX_NUM_READ_FRAMES 2
a6c2ba28	68
a6c2ba28	69	/* number of buffers for isoc transfers */
3acf2809	70	#define EM28XX_NUM_BUFS 5
a6c2ba28	71
d5e52653 MCC	72	/* number of packets for each buffer
	73	windows requests only 40 packets .. so we better do the same
	74	this is what I found out for all alternate numbers there!
	75	*/
3acf2809	76	#define EM28XX_NUM_PACKETS 40
a6c2ba28	77
a6c2ba28	78	/* default alternate; 0 means choose the best */
3acf2809	79	#define EM28XX_PINOUT 0
a6c2ba28	80
3acf2809	81	#define EM28XX_INTERLACED_DEFAULT 1
a6c2ba28	82
	83	/*
	84	#define (use usbview if you want to get the other alternate number infos)
	85	#define
	86	#define alternate number 2
	87	#define Endpoint Address: 82
	88	Direction: in
	89	Attribute: 1
	90	Type: Isoc
	91	Max Packet Size: 1448
	92	Interval: 125us
	93
	94	alternate number 7
	95
	96	Endpoint Address: 82
	97	Direction: in
	98	Attribute: 1
	99	Type: Isoc
	100	Max Packet Size: 3072
	101	Interval: 125us
	102	*/
	103
	104	/* time to wait when stopping the isoc transfer */
3acf2809	105	#define EM28XX_URB_TIMEOUT msecs_to_jiffies(EM28XX_NUM_BUFS * EM28XX_NUM_PACKETS)
a6c2ba28	106
596d92d5 MCC	107	/* time in msecs to wait for i2c writes to finish */
	108	#define EM2800_I2C_WRITE_TIMEOUT 20
	109
3aefb79a MCC	110	enum em28xx_mode {
	111	EM28XX_ANALOG_MODE,
	112	EM28XX_DIGITAL_MODE,
	113	};
	114
3acf2809	115	enum em28xx_stream_state {
a6c2ba28	116	STREAM_OFF,
	117	STREAM_INTERRUPT,
	118	STREAM_ON,
	119	};
	120
ad0ebb96 MCC	121	struct em28xx_usb_isoc_ctl {
	122	/* max packet size of isoc transaction */
	123	int max_pkt_size;
	124
	125	/* number of allocated urbs */
	126	int num_bufs;
	127
	128	/* urb for isoc transfers */
	129	struct urb **urb;
	130
	131	/* transfer buffers for isoc transfer */
	132	char **transfer_buffer;
	133
	134	/* Last buffer command and region */
	135	u8 cmd;
	136	int pos, size, pktsize;
	137
	138	/* Last field: ODD or EVEN? */
	139	int field;
	140
	141	/* Stores incomplete commands */
	142	u32 tmp_buf;
	143	int tmp_buf_len;
	144
	145	/* Stores already requested buffers */
	146	struct em28xx_buffer *buf;
	147
	148	/* Stores the number of received fields */
	149	int nfields;
	150	};
	151
	152	struct em28xx_fmt {
	153	char *name;
	154	u32 fourcc; /* v4l2 format id */
	155	};
	156
	157	/* buffer for one video frame */
	158	struct em28xx_buffer {
	159	/* common v4l buffer stuff -- must be first */
	160	struct videobuf_buffer vb;
	161
a6c2ba28	162	struct list_head frame;
a6c2ba28	163	int top_field;
ad0ebb96 MCC	164	int receiving;
	165	};
	166
	167	struct em28xx_dmaqueue {
	168	struct list_head active;
	169	struct list_head queued;
ad0ebb96 MCC	170
	171	wait_queue_head_t wq;
	172
	173	/* Counters to control buffer fill */
	174	int pos;
a6c2ba28	175	};
	176
	177	/* io methods */
3acf2809	178	enum em28xx_io_method {
a6c2ba28	179	IO_NONE,
	180	IO_READ,
	181	IO_MMAP,
	182	};
	183
	184	/* inputs */
	185
3acf2809 MCC	186	#define MAX_EM28XX_INPUT 4
	187	enum enum28xx_itype {
	188	EM28XX_VMUX_COMPOSITE1 = 1,
	189	EM28XX_VMUX_COMPOSITE2,
	190	EM28XX_VMUX_COMPOSITE3,
	191	EM28XX_VMUX_COMPOSITE4,
	192	EM28XX_VMUX_SVIDEO,
	193	EM28XX_VMUX_TELEVISION,
	194	EM28XX_VMUX_CABLE,
	195	EM28XX_VMUX_DVB,
	196	EM28XX_VMUX_DEBUG,
	197	EM28XX_RADIO,
a6c2ba28	198	};
a6c2ba28	199
539c96d0 MCC	200	enum em28xx_amux {
	201	EM28XX_AMUX_VIDEO,
	202	EM28XX_AMUX_LINE_IN,
	203	EM28XX_AMUX_AC97_VIDEO,
	204	EM28XX_AMUX_AC97_LINE_IN,
	205	};
	206
3acf2809 MCC	207	struct em28xx_input {
3acf2809 MCC	208	enum enum28xx_itype type;
a6c2ba28	209	unsigned int vmux;
539c96d0	210	enum em28xx_amux amux;
a6c2ba28	211	};
a6c2ba28	212
3acf2809	213	#define INPUT(nr) (&em28xx_boards[dev->model].input[nr])
a6c2ba28	214
3acf2809 MCC	215	enum em28xx_decoder {
	216	EM28XX_TVP5150,
	217	EM28XX_SAA7113,
	218	EM28XX_SAA7114
a6c2ba28	219	};
a6c2ba28	220
ee6e3a86 MCC	221	#define MAX_GPIO 2
	222	struct gpio_ctl {
	223	/* Register to be set */
	224	unsigned char reg;
	225	/* Initial/final value */
	226	unsigned char val;
	227	/* reset value - if set, it will do:
	228	val1 - val2 - val1
	229	*/
	230	unsigned char rst;
	231	/* Sleep times
	232	*/
	233	unsigned int t1, t2, t3;
	234	};
	235
3acf2809	236	struct em28xx_board {
a6c2ba28	237	char *name;
a6c2ba28	238	int vchannels;
a6c2ba28	239	int tuner_type;
	240
	241	/* i2c flags */
	242	unsigned int tda9887_conf;
	243
74f38a82	244	unsigned int is_em2800:1;
a6c2ba28	245	unsigned int has_msp34xx:1;
5add9a6f	246	unsigned int mts_firmware:1;
3abee53e	247	unsigned int has_12mhz_i2s:1;
c8793b03	248	unsigned int max_range_640_480:1;
3aefb79a	249	unsigned int has_dvb:1;
3abee53e	250
ee6e3a86 MCC	251	struct gpio_ctl analog_gpio[MAX_GPIO];
ee6e3a86 MCC	252	struct gpio_ctl digital_gpio[MAX_GPIO];
a6c2ba28	253
3acf2809	254	enum em28xx_decoder decoder;
a6c2ba28	255
3acf2809	256	struct em28xx_input input[MAX_EM28XX_INPUT];
0be43754	257	struct em28xx_input radio;
a6c2ba28	258	};
a6c2ba28	259
3acf2809	260	struct em28xx_eeprom {
a6c2ba28	261	u32 id; /* 0x9567eb1a */
	262	u16 vendor_ID;
	263	u16 product_ID;
	264
	265	u16 chip_conf;
	266
	267	u16 board_conf;
	268
	269	u16 string1, string2, string3;
	270
	271	u8 string_idx_table;
	272	};
	273
	274	/* device states */
3acf2809	275	enum em28xx_dev_state {
a6c2ba28	276	DEV_INITIALIZED = 0x01,
	277	DEV_DISCONNECTED = 0x02,
	278	DEV_MISCONFIGURED = 0x04,
	279	};
	280
6d79468d MCC	281	#define EM28XX_AUDIO_BUFS 5
	282	#define EM28XX_NUM_AUDIO_PACKETS 64
	283	#define EM28XX_AUDIO_MAX_PACKET_SIZE 196 /* static value */
	284	#define EM28XX_CAPTURE_STREAM_EN 1
3aefb79a MCC	285
3aefb79a MCC	286	/* em28xx extensions */
6d79468d	287	#define EM28XX_AUDIO 0x10
3aefb79a	288	#define EM28XX_DVB 0x20
6d79468d MCC	289
	290	struct em28xx_audio {
	291	char name[50];
	292	char *transfer_buffer[EM28XX_AUDIO_BUFS];
	293	struct urb *urb[EM28XX_AUDIO_BUFS];
	294	struct usb_device *udev;
	295	unsigned int capture_transfer_done;
	296	struct snd_pcm_substream *capture_pcm_substream;
	297
	298	unsigned int hwptr_done_capture;
	299	struct snd_card *sndcard;
	300
	301	int users, shutdown;
	302	enum em28xx_stream_state capture_stream;
	303	spinlock_t slock;
	304	};
	305
a6c2ba28	306	/* main device struct */
3acf2809	307	struct em28xx {
a6c2ba28	308	/* generic device properties */
	309	char name[30]; /* name (including minor) of the device */
	310	int model; /* index in the device_data struct */
e5589bef	311	int devno; /* marks the number of this device */
74f38a82	312	unsigned int is_em2800:1;
a6c2ba28	313	unsigned int has_msp34xx:1;
a6c2ba28	314	unsigned int has_tda9887:1;
a225452e	315	unsigned int stream_on:1; /* Locks streams */
d7448a8d	316	unsigned int has_audio_class:1;
3abee53e	317	unsigned int has_12mhz_i2s:1;
c8793b03	318	unsigned int max_range_640_480:1;
3aefb79a	319	unsigned int has_dvb:1;
a225452e	320
ee6e3a86 MCC	321	struct gpio_ctl (*analog_gpio)[MAX_GPIO];
	322	struct gpio_ctl (*digital_gpio)[MAX_GPIO];
	323
74f38a82 MCC	324	int video_inputs; /* number of video inputs */
	325	struct list_head devlist;
	326
9bb13a6d MCC	327	u32 i2s_speed; /* I2S speed for audio digital stream */
9bb13a6d MCC	328
3acf2809	329	enum em28xx_decoder decoder;
a6c2ba28	330
	331	int tuner_type; /* type of the tuner */
	332	int tuner_addr; /* tuner address */
	333	int tda9887_conf;
	334	/* i2c i/o */
	335	struct i2c_adapter i2c_adap;
	336	struct i2c_client i2c_client;
	337	/* video for linux */
	338	int users; /* user count for exclusive use */
	339	struct video_device vdev; / video for linux device struct */
7d497f8a	340	v4l2_std_id norm; /* selected tv norm */
a6c2ba28	341	int ctl_freq; /* selected frequency */
	342	unsigned int ctl_input; /* selected input */
	343	unsigned int ctl_ainput; /* slected audio input */
	344	int mute;
	345	int volume;
	346	/* frame properties */
a6c2ba28	347	int width; /* current frame width */
a6c2ba28	348	int height; /* current frame height */
a6c2ba28	349	int hscale; /* horizontal scale factor (see datasheet) */
	350	int vscale; /* vertical scale factor (see datasheet) */
	351	int interlaced; /* 1=interlace fileds, 0=just top fileds */
9e31ced8	352	unsigned int video_bytesread; /* Number of bytes read */
a6c2ba28	353
03910cc3	354	unsigned long hash; /* eeprom hash - for boards with generic ID */
fad7b958	355	unsigned long i2c_hash; /* i2c devicelist hash - for boards with generic ID */
03910cc3	356
6d79468d MCC	357	struct em28xx_audio *adev;
6d79468d MCC	358
a6c2ba28	359	/* states */
3acf2809	360	enum em28xx_dev_state state;
3acf2809	361	enum em28xx_io_method io;
9e31ced8	362
d7448a8d MCC	363	struct work_struct request_module_wk;
d7448a8d MCC	364
a6c2ba28	365	/* locks */
5a80415b	366	struct mutex lock;
d7aa8020	367	/* spinlock_t queue_lock; */
a6c2ba28	368	struct list_head inqueue, outqueue;
	369	wait_queue_head_t open, wait_frame, wait_stream;
	370	struct video_device *vbi_dev;
0be43754	371	struct video_device *radio_dev;
a6c2ba28	372
	373	unsigned char eedata[256];
	374
ad0ebb96 MCC	375	/* Isoc control struct */
	376	struct em28xx_dmaqueue vidq;
	377	struct em28xx_usb_isoc_ctl isoc_ctl;
	378	spinlock_t slock;
	379
a6c2ba28	380	/* usb transfer */
	381	struct usb_device udev; / the usb device */
	382	int alt; /* alternate */
	383	int max_pkt_size; /* max packet size of isoc transaction */
9d4d9c05 MCC	384	int num_alt; /* Number of alternative settings */
9d4d9c05 MCC	385	unsigned int alt_max_pkt_size; / array of wMaxPacketSize */
3acf2809 MCC	386	struct urb urb[EM28XX_NUM_BUFS]; / urb for isoc transfers */
3acf2809 MCC	387	char transfer_buffer[EM28XX_NUM_BUFS]; / transfer buffers for isoc transfer */
a6c2ba28	388	/* helper funcs that call usb_control_msg */
3acf2809	389	int (em28xx_write_regs) (struct em28xx dev, u16 reg, char *buf,
a6c2ba28	390	int len);
3acf2809 MCC	391	int (em28xx_read_reg) (struct em28xx dev, u16 reg);
3acf2809 MCC	392	int (em28xx_read_reg_req_len) (struct em28xx dev, u8 req, u16 reg,
a6c2ba28	393	char *buf, int len);
3acf2809	394	int (em28xx_write_regs_req) (struct em28xx dev, u8 req, u16 reg,
a6c2ba28	395	char *buf, int len);
3acf2809	396	int (em28xx_read_reg_req) (struct em28xx dev, u8 req, u16 reg);
3aefb79a MCC	397
	398	enum em28xx_mode mode;
	399
	400	#if defined(CONFIG_VIDEO_EM28XX_DVB) \|\| defined(CONFIG_VIDEO_EM28XX_DVB_MODULE)
	401	struct videobuf_dvb dvb;
	402	struct videobuf_queue_ops *qops;
	403	#endif
a6c2ba28	404	};
a6c2ba28	405
a3a048ce MCC	406	struct em28xx_fh {
a3a048ce MCC	407	struct em28xx *dev;
a225452e	408	unsigned int stream_on:1; /* Locks streams */
6d79468d	409	int radio;
ad0ebb96	410
ad0ebb96	411	struct videobuf_queue vb_vidq;
ad0ebb96 MCC	412
ad0ebb96 MCC	413	enum v4l2_buf_type type;
6d79468d MCC	414	};
	415
	416	struct em28xx_ops {
	417	struct list_head next;
	418	char *name;
	419	int id;
	420	int (init)(struct em28xx );
	421	int (fini)(struct em28xx );
a3a048ce MCC	422	};
a3a048ce MCC	423
3acf2809	424	/* Provided by em28xx-i2c.c */
a6c2ba28	425
3acf2809	426	void em28xx_i2c_call_clients(struct em28xx dev, unsigned int cmd, void arg);
fad7b958	427	void em28xx_do_i2c_scan(struct em28xx *dev);
3acf2809 MCC	428	int em28xx_i2c_register(struct em28xx *dev);
3acf2809 MCC	429	int em28xx_i2c_unregister(struct em28xx *dev);
a6c2ba28	430
3acf2809	431	/* Provided by em28xx-core.c */
a6c2ba28	432
3acf2809 MCC	433	u32 em28xx_request_buffers(struct em28xx *dev, u32 count);
	434	void em28xx_queue_unusedframes(struct em28xx *dev);
	435	void em28xx_release_buffers(struct em28xx *dev);
a6c2ba28	436
3acf2809	437	int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg,
a6c2ba28	438	char *buf, int len);
3acf2809 MCC	439	int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg);
	440	int em28xx_read_reg(struct em28xx *dev, u16 reg);
	441	int em28xx_write_regs_req(struct em28xx dev, u8 req, u16 reg, char buf,
a6c2ba28	442	int len);
3acf2809	443	int em28xx_write_regs(struct em28xx dev, u16 reg, char buf, int len);
3acf2809	444	int em28xx_audio_analog_set(struct em28xx *dev);
539c96d0	445
3acf2809 MCC	446	int em28xx_colorlevels_set_default(struct em28xx *dev);
	447	int em28xx_capture_start(struct em28xx *dev, int start);
	448	int em28xx_outfmt_set_yuv422(struct em28xx *dev);
3acf2809	449	int em28xx_resolution_set(struct em28xx *dev);
3acf2809 MCC	450	int em28xx_set_alternate(struct em28xx *dev);
3acf2809 MCC	451
6d79468d MCC	452	/* Provided by em28xx-video.c */
	453	int em28xx_register_extension(struct em28xx_ops *dev);
	454	void em28xx_unregister_extension(struct em28xx_ops *dev);
	455
3acf2809	456	/* Provided by em28xx-cards.c */
596d92d5	457	extern int em2800_variant_detect(struct usb_device* udev,int model);
a94e95b4	458	extern void em28xx_pre_card_setup(struct em28xx *dev);
3acf2809 MCC	459	extern void em28xx_card_setup(struct em28xx *dev);
	460	extern struct em28xx_board em28xx_boards[];
	461	extern struct usb_device_id em28xx_id_table[];
	462	extern const unsigned int em28xx_bcount;
c8793b03	463	void em28xx_set_ir(struct em28xx dev, struct IR_i2c ir);
ee6e3a86	464	int em28xx_tuner_callback(void *ptr, int command, int arg);
c8793b03 MCC	465
	466	/* Provided by em28xx-input.c */
	467	/* TODO: Check if the standard get_key handlers on ir-common can be used */
	468	int em28xx_get_key_terratec(struct IR_i2c ir, u32 ir_key, u32 *ir_raw);
	469	int em28xx_get_key_em_haup(struct IR_i2c ir, u32 ir_key, u32 *ir_raw);
	470	int em28xx_get_key_pinnacle_usb_grey(struct IR_i2c ir, u32 ir_key,
	471	u32 *ir_raw);
a6c2ba28	472
4362559d SS	473	/* em2800 registers */
	474	#define EM2800_AUDIOSRC_REG 0x08
	475
3acf2809	476	/* em28xx registers */
74f38a82	477	#define I2C_CLK_REG 0x06
596d92d5	478	#define CHIPID_REG 0x0a
a6c2ba28	479	#define USBSUSP_REG 0x0c /* */
	480
	481	#define AUDIOSRC_REG 0x0e
	482	#define XCLK_REG 0x0f
	483
	484	#define VINMODE_REG 0x10
	485	#define VINCTRL_REG 0x11
	486	#define VINENABLE_REG 0x12 /* */
	487
	488	#define GAMMA_REG 0x14
	489	#define RGAIN_REG 0x15
	490	#define GGAIN_REG 0x16
	491	#define BGAIN_REG 0x17
	492	#define ROFFSET_REG 0x18
	493	#define GOFFSET_REG 0x19
	494	#define BOFFSET_REG 0x1a
	495
	496	#define OFLOW_REG 0x1b
	497	#define HSTART_REG 0x1c
	498	#define VSTART_REG 0x1d
	499	#define CWIDTH_REG 0x1e
	500	#define CHEIGHT_REG 0x1f
	501
	502	#define YGAIN_REG 0x20
	503	#define YOFFSET_REG 0x21
	504	#define UVGAIN_REG 0x22
	505	#define UOFFSET_REG 0x23
	506	#define VOFFSET_REG 0x24
	507	#define SHARPNESS_REG 0x25
	508
	509	#define COMPR_REG 0x26
	510	#define OUTFMT_REG 0x27
	511
	512	#define XMIN_REG 0x28
	513	#define XMAX_REG 0x29
	514	#define YMIN_REG 0x2a
	515	#define YMAX_REG 0x2b
	516
	517	#define HSCALELOW_REG 0x30
	518	#define HSCALEHIGH_REG 0x31
	519	#define VSCALELOW_REG 0x32
	520	#define VSCALEHIGH_REG 0x33
	521
	522	#define AC97LSB_REG 0x40
	523	#define AC97MSB_REG 0x41
	524	#define AC97ADDR_REG 0x42
	525	#define AC97BUSY_REG 0x43
	526
	527	/* em202 registers */
	528	#define MASTER_AC97 0x02
539c96d0	529	#define LINE_IN_AC97 0x10
a6c2ba28	530	#define VIDEO_AC97 0x14
	531
	532	/* register settings */
4362559d SS	533	#define EM2800_AUDIO_SRC_TUNER 0x0d
4362559d SS	534	#define EM2800_AUDIO_SRC_LINE 0x0c
3acf2809 MCC	535	#define EM28XX_AUDIO_SRC_TUNER 0xc0
3acf2809 MCC	536	#define EM28XX_AUDIO_SRC_LINE 0x80
a6c2ba28	537
	538	/* printk macros */
	539
3acf2809	540	#define em28xx_err(fmt, arg...) do {\
f85c657f	541	printk(KERN_ERR fmt , ##arg); } while (0)
a6c2ba28	542
3acf2809	543	#define em28xx_errdev(fmt, arg...) do {\
4ac97914	544	printk(KERN_ERR "%s: "fmt,\
f85c657f	545	dev->name , ##arg); } while (0)
a6c2ba28	546
3acf2809	547	#define em28xx_info(fmt, arg...) do {\
4ac97914	548	printk(KERN_INFO "%s: "fmt,\
f85c657f	549	dev->name , ##arg); } while (0)
3acf2809	550	#define em28xx_warn(fmt, arg...) do {\
4ac97914	551	printk(KERN_WARNING "%s: "fmt,\
f85c657f	552	dev->name , ##arg); } while (0)
a6c2ba28	553
3acf2809	554	inline static int em28xx_compression_disable(struct em28xx *dev)
a6c2ba28	555	{
a6c2ba28	556	/* side effect of disabling scaler and mixer */
3acf2809	557	return em28xx_write_regs(dev, COMPR_REG, "\x00", 1);
a6c2ba28	558	}
a6c2ba28	559
3acf2809	560	inline static int em28xx_contrast_get(struct em28xx *dev)
a6c2ba28	561	{
3acf2809	562	return em28xx_read_reg(dev, YGAIN_REG) & 0x1f;
a6c2ba28	563	}
a6c2ba28	564
3acf2809	565	inline static int em28xx_brightness_get(struct em28xx *dev)
a6c2ba28	566	{
3acf2809	567	return em28xx_read_reg(dev, YOFFSET_REG);
a6c2ba28	568	}
a6c2ba28	569
3acf2809	570	inline static int em28xx_saturation_get(struct em28xx *dev)
a6c2ba28	571	{
3acf2809	572	return em28xx_read_reg(dev, UVGAIN_REG) & 0x1f;
a6c2ba28	573	}
a6c2ba28	574
3acf2809	575	inline static int em28xx_u_balance_get(struct em28xx *dev)
a6c2ba28	576	{
3acf2809	577	return em28xx_read_reg(dev, UOFFSET_REG);
a6c2ba28	578	}
a6c2ba28	579
3acf2809	580	inline static int em28xx_v_balance_get(struct em28xx *dev)
a6c2ba28	581	{
3acf2809	582	return em28xx_read_reg(dev, VOFFSET_REG);
a6c2ba28	583	}
a6c2ba28	584
3acf2809	585	inline static int em28xx_gamma_get(struct em28xx *dev)
a6c2ba28	586	{
3acf2809	587	return em28xx_read_reg(dev, GAMMA_REG) & 0x3f;
a6c2ba28	588	}
a6c2ba28	589
3acf2809	590	inline static int em28xx_contrast_set(struct em28xx *dev, s32 val)
a6c2ba28	591	{
a6c2ba28	592	u8 tmp = (u8) val;
3acf2809	593	return em28xx_write_regs(dev, YGAIN_REG, &tmp, 1);
a6c2ba28	594	}
a6c2ba28	595
3acf2809	596	inline static int em28xx_brightness_set(struct em28xx *dev, s32 val)
a6c2ba28	597	{
a6c2ba28	598	u8 tmp = (u8) val;
3acf2809	599	return em28xx_write_regs(dev, YOFFSET_REG, &tmp, 1);
a6c2ba28	600	}
a6c2ba28	601
3acf2809	602	inline static int em28xx_saturation_set(struct em28xx *dev, s32 val)
a6c2ba28	603	{
a6c2ba28	604	u8 tmp = (u8) val;
3acf2809	605	return em28xx_write_regs(dev, UVGAIN_REG, &tmp, 1);
a6c2ba28	606	}
a6c2ba28	607
3acf2809	608	inline static int em28xx_u_balance_set(struct em28xx *dev, s32 val)
a6c2ba28	609	{
a6c2ba28	610	u8 tmp = (u8) val;
3acf2809	611	return em28xx_write_regs(dev, UOFFSET_REG, &tmp, 1);
a6c2ba28	612	}
a6c2ba28	613
3acf2809	614	inline static int em28xx_v_balance_set(struct em28xx *dev, s32 val)
a6c2ba28	615	{
a6c2ba28	616	u8 tmp = (u8) val;
3acf2809	617	return em28xx_write_regs(dev, VOFFSET_REG, &tmp, 1);
a6c2ba28	618	}
a6c2ba28	619
3acf2809	620	inline static int em28xx_gamma_set(struct em28xx *dev, s32 val)
a6c2ba28	621	{
a6c2ba28	622	u8 tmp = (u8) val;
3acf2809	623	return em28xx_write_regs(dev, GAMMA_REG, &tmp, 1);
a6c2ba28	624	}
	625
	626	/FIXME: maxw should be dependent of alt mode /
3acf2809	627	inline static unsigned int norm_maxw(struct em28xx *dev)
30556b23	628	{
c8793b03	629	if (dev->max_range_640_480)
7d497f8a	630	return 640;
c8793b03	631	else
7d497f8a	632	return 720;
30556b23 MR	633	}
30556b23 MR	634
3acf2809	635	inline static unsigned int norm_maxh(struct em28xx *dev)
a6c2ba28	636	{
c8793b03	637	if (dev->max_range_640_480)
7d497f8a	638	return 480;
c8793b03	639	else
7d497f8a	640	return (dev->norm & V4L2_STD_625_50) ? 576 : 480;
a6c2ba28	641	}
a6c2ba28	642	#endif