ov511.h

0v511摄像头linux最新驱动源码

#ifndef __LINUX_OV511_H
#define __LINUX_OV511_H

#include <asm/uaccess.h>
#include <linux/videodev.h>
#include <linux/smp_lock.h>
#include <linux/usb.h>

#define OV511_DEBUG	/* Turn on debug messages */

#ifdef OV511_DEBUG
	#define PDEBUG(level, fmt, args...) \
		if (debug >= (level)) info("[%s:%d] " fmt, \
		__PRETTY_FUNCTION__, __LINE__ , ## args)
#else
	#define PDEBUG(level, fmt, args...) do {} while(0)
#endif

/* This macro restricts an int variable to an inclusive range */
#define RESTRICT_TO_RANGE(v,mi,ma) { \
	if ((v) < (mi)) (v) = (mi); \
	else if ((v) > (ma)) (v) = (ma); \
}

/* --------------------------------- */
/* DEFINES FOR OV511 AND OTHER CHIPS */
/* --------------------------------- */

/* USB IDs */
#define VEND_OMNIVISION	0x05A9
#define PROD_OV511	0x0511
#define PROD_OV511PLUS	0xA511
#define PROD_OV518	0x0518
#define PROD_OV518PLUS	0xA518

#define VEND_MATTEL	0x0813
#define PROD_ME2CAM	0x0002

/* --------------------------------- */
/*     OV51x REGISTER MNEMONICS      */
/* --------------------------------- */

/* Camera interface register numbers */
#define R511_CAM_DELAY		0x10
#define R511_CAM_EDGE		0x11
#define R511_CAM_PXCNT		0x12
#define R511_CAM_LNCNT		0x13
#define R511_CAM_PXDIV		0x14
#define R511_CAM_LNDIV		0x15
#define R511_CAM_UV_EN		0x16
#define R511_CAM_LINE_MODE	0x17
#define R511_CAM_OPTS		0x18

/* Snapshot mode camera interface register numbers */
#define R511_SNAP_FRAME		0x19
#define R511_SNAP_PXCNT		0x1A
#define R511_SNAP_LNCNT		0x1B
#define R511_SNAP_PXDIV		0x1C
#define R511_SNAP_LNDIV		0x1D
#define R511_SNAP_UV_EN		0x1E
#define R511_SNAP_OPTS		0x1F

/* DRAM register numbers */
#define R511_DRAM_FLOW_CTL	0x20
#define R511_DRAM_ARCP		0x21
#define R511_DRAM_MRC		0x22
#define R511_DRAM_RFC		0x23

/* ISO FIFO register numbers */
#define R51x_FIFO_PSIZE		0x30	/* 2 bytes wide w/ OV518(+) */
#define R511_FIFO_OPTS		0x31

/* Parallel IO register numbers */
#define R511_PIO_OPTS		0x38
#define R511_PIO_DATA		0x39
#define R511_PIO_BIST		0x3E
#define R518_GPIO_IN		0x55	/* OV518(+) only */
#define R518_GPIO_OUT		0x56	/* OV518(+) only */
#define R518_GPIO_CTL		0x57	/* OV518(+) only */
#define R518_GPIO_PULSE_IN	0x58	/* OV518(+) only */
#define R518_GPIO_PULSE_CLEAR	0x59	/* OV518(+) only */
#define R518_GPIO_PULSE_POL	0x5a	/* OV518(+) only */
#define R518_GPIO_PULSE_EN	0x5b	/* OV518(+) only */
#define R518_GPIO_RESET		0x5c	/* OV518(+) only */

/* I2C registers */
#define R511_I2C_CTL		0x40
#define R518_I2C_CTL		0x47	/* OV518(+) only */
#define R51x_I2C_W_SID		0x41
#define R51x_I2C_SADDR_3	0x42
#define R51x_I2C_SADDR_2	0x43
#define R51x_I2C_R_SID		0x44
#define R51x_I2C_DATA		0x45
#define R51x_I2C_CLOCK		0x46
#define R51x_I2C_TIMEOUT	0x47

/* I2C snapshot registers */
#define R511_SI2C_SADDR_3	0x48
#define R511_SI2C_DATA		0x49

/* System control registers */
#define R51x_SYS_RESET		0x50
		/* Reset type definitions */
#define 	OV511_RESET_UDC		0x01
#define 	OV511_RESET_I2C		0x02
#define 	OV511_RESET_FIFO	0x04
#define 	OV511_RESET_OMNICE	0x08
#define 	OV511_RESET_DRAM	0x10
#define 	OV511_RESET_CAM_INT	0x20
#define 	OV511_RESET_OV511	0x40
#define 	OV511_RESET_NOREGS	0x3F /* All but OV511 & regs */
#define 	OV511_RESET_ALL		0x7F

#define R511_SYS_CLOCK_DIV	0x51
#define R51x_SYS_SNAP		0x52
#define R51x_SYS_INIT         	0x53
#define R511_SYS_PWR_CLK	0x54 /* OV511+/OV518(+) only */
#define R511_SYS_LED_CTL	0x55 /* OV511+ only */
#define R511_SYS_USER		0x5E
#define R511_SYS_CUST_ID	0x5F

/* OmniCE (compression) registers */
#define R511_COMP_PHY		0x70
#define R511_COMP_PHUV		0x71
#define R511_COMP_PVY		0x72
#define R511_COMP_PVUV		0x73
#define R511_COMP_QHY		0x74
#define R511_COMP_QHUV		0x75
#define R511_COMP_QVY		0x76
#define R511_COMP_QVUV		0x77
#define R511_COMP_EN		0x78
#define R511_COMP_LUT_EN	0x79		
#define R511_COMP_LUT_BEGIN	0x80

/* --------------------------------- */
/*         ALTERNATE NUMBERS         */
/* --------------------------------- */

/* Alternate numbers for various max packet sizes (OV511 only) */
#define OV511_ALT_SIZE_992	0
#define OV511_ALT_SIZE_993	1
#define OV511_ALT_SIZE_768	2
#define OV511_ALT_SIZE_769	3
#define OV511_ALT_SIZE_512	4
#define OV511_ALT_SIZE_513	5
#define OV511_ALT_SIZE_257	6
#define OV511_ALT_SIZE_0	7

/* Alternate numbers for various max packet sizes (OV511+ only) */
#define OV511PLUS_ALT_SIZE_0	0
#define OV511PLUS_ALT_SIZE_33	1
#define OV511PLUS_ALT_SIZE_129	2
#define OV511PLUS_ALT_SIZE_257	3
#define OV511PLUS_ALT_SIZE_385	4
#define OV511PLUS_ALT_SIZE_513	5
#define OV511PLUS_ALT_SIZE_769	6
#define OV511PLUS_ALT_SIZE_961	7

/* Alternate numbers for various max packet sizes (OV518(+) only) */
#define OV518_ALT_SIZE_0	0
#define OV518_ALT_SIZE_128	1
#define OV518_ALT_SIZE_256	2
#define OV518_ALT_SIZE_384	3
#define OV518_ALT_SIZE_512	4
#define OV518_ALT_SIZE_640	5
#define OV518_ALT_SIZE_768	6
#define OV518_ALT_SIZE_896	7

/* --------------------------------- */
/*     OV7610 REGISTER MNEMONICS     */
/* --------------------------------- */

/* OV7610 registers */
#define OV7610_REG_GAIN          0x00	/* gain setting (5:0) */
#define OV7610_REG_BLUE          0x01	/* blue channel balance */
#define OV7610_REG_RED           0x02	/* red channel balance */
#define OV7610_REG_SAT           0x03	/* saturation */
					/* 04 reserved */
#define OV7610_REG_CNT           0x05	/* Y contrast */
#define OV7610_REG_BRT           0x06	/* Y brightness */
					/* 08-0b reserved */
#define OV7610_REG_BLUE_BIAS     0x0C	/* blue channel bias (5:0) */
#define OV7610_REG_RED_BIAS      0x0D	/* read channel bias (5:0) */
#define OV7610_REG_GAMMA_COEFF   0x0E	/* gamma settings */
#define OV7610_REG_WB_RANGE      0x0F	/* AEC/ALC/S-AWB settings */
#define OV7610_REG_EXP           0x10	/* manual exposure setting */
#define OV7610_REG_CLOCK         0x11	/* polarity/clock prescaler */
#define OV7610_REG_COM_A         0x12	/* misc common regs */
#define OV7610_REG_COM_B         0x13	/* misc common regs */
#define OV7610_REG_COM_C         0x14	/* misc common regs */
#define OV7610_REG_COM_D         0x15	/* misc common regs */
#define OV7610_REG_FIELD_DIVIDE  0x16	/* field interval/mode settings */
#define OV7610_REG_HWIN_START    0x17	/* horizontal window start */
#define OV7610_REG_HWIN_END      0x18	/* horizontal window end */
#define OV7610_REG_VWIN_START    0x19	/* vertical window start */
#define OV7610_REG_VWIN_END      0x1A	/* vertical window end */
#define OV7610_REG_PIXEL_SHIFT   0x1B	/* pixel shift */
#define OV7610_REG_ID_HIGH       0x1C	/* manufacturer ID MSB */
#define OV7610_REG_ID_LOW        0x1D	/* manufacturer ID LSB */
					/* 0e-0f reserved */
#define OV7610_REG_COM_E         0x20	/* misc common regs */
#define OV7610_REG_YOFFSET       0x21	/* Y channel offset */
#define OV7610_REG_UOFFSET       0x22	/* U channel offset */
					/* 23 reserved */
#define OV7610_REG_ECW           0x24	/* Exposure white level for AEC */
#define OV7610_REG_ECB           0x25	/* Exposure black level for AEC */
#define OV7610_REG_COM_F         0x26	/* misc settings */
#define OV7610_REG_COM_G         0x27	/* misc settings */
#define OV7610_REG_COM_H         0x28	/* misc settings */
#define OV7610_REG_COM_I         0x29	/* misc settings */
#define OV7610_REG_FRAMERATE_H   0x2A	/* frame rate MSB + misc */
#define OV7610_REG_FRAMERATE_L   0x2B	/* frame rate LSB */
#define OV7610_REG_ALC           0x2C	/* Auto Level Control settings */
#define OV7610_REG_COM_J         0x2D	/* misc settings */
#define OV7610_REG_VOFFSET       0x2E	/* V channel offset adjustment */
#define OV7610_REG_ARRAY_BIAS	 0x2F	/* Array bias -- don't change */
					/* 30-32 reserved */
#define OV7610_REG_YGAMMA        0x33	/* misc gamma settings (7:6) */
#define OV7610_REG_BIAS_ADJUST   0x34	/* misc bias settings */
#define OV7610_REG_COM_L         0x35	/* misc settings */
					/* 36-37 reserved */
#define OV7610_REG_COM_K         0x38	/* misc registers */

/* --------------------------------- */
/*           I2C ADDRESSES           */
/* --------------------------------- */

#define OV7xx0_SID   0x42
#define OV6xx0_SID   0xC0
#define OV8xx0_SID   0xA0
#define KS0127_SID   0xD8
#define SAA7111A_SID 0x48

/* --------------------------------- */
/*       MISCELLANEOUS DEFINES       */
/* --------------------------------- */

#define I2C_CLOCK_PRESCALER 	0x03

#define FRAMES_PER_DESC		10	/* FIXME - What should this be? */
#define MAX_FRAME_SIZE_PER_DESC	993	/* For statically allocated stuff */
#define PIXELS_PER_SEG		256	/* Pixels per segment */

#define OV511_ENDPOINT_ADDRESS	1	/* Isoc endpoint number */

#define OV511_NUMFRAMES	2
#if OV511_NUMFRAMES > VIDEO_MAX_FRAME
	#error "OV511_NUMFRAMES is too high"
#endif

#define OV511_NUMSBUF		2

/* Control transfers use up to 4 bytes */
#define OV511_CBUF_SIZE		4

#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 5, 0)
	/* Size of usb_make_path() buffer */
	#define OV511_USB_PATH_LEN	64
#endif

/* Bridge types */
enum {
	BRG_UNKNOWN,
	BRG_OV511,
	BRG_OV511PLUS,
	BRG_OV518,
	BRG_OV518PLUS,
};

/* Bridge classes */
enum {
	BCL_UNKNOWN,
	BCL_OV511,
	BCL_OV518,
};

/* Sensor types */
enum {
	SEN_UNKNOWN,
	SEN_OV76BE,
	SEN_OV7610,
	SEN_OV7620,
	SEN_OV7620AE,
	SEN_OV6620,
	SEN_OV6630,
	SEN_OV6630AE,
	SEN_OV6630AF,
	SEN_OV8600,
	SEN_KS0127,
	SEN_KS0127B,
	SEN_SAA7111A,
};

enum {
	STATE_SCANNING,		/* Scanning for start */
	STATE_HEADER,		/* Parsing header */
	STATE_LINES,		/* Parsing lines */
};

/* Buffer states */
enum {
	BUF_NOT_ALLOCATED,
	BUF_ALLOCATED,
};

/* --------- Definition of ioctl interface --------- */

#define OV511_INTERFACE_VER 101

/* LED options */