ov511 v1.28.h

linux下ov511驱动程序

#ifndef __LINUX_OV511_H
#define __LINUX_OV511_H

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

#define OV511_DEBUG     /* Turn on debug messages */

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

/* Camera interface register numbers */
#define OV511_REG_CAMERA_DELAY_MODE             0x10
#define OV511_REG_CAMERA_EDGE_MODE              0x11
#define OV511_REG_CAMERA_CLAMPED_PIXEL_NUM      0x12
#define OV511_REG_CAMERA_CLAMPED_LINE_NUM       0x13
#define OV511_REG_CAMERA_PIXEL_DIVISOR          0x14
#define OV511_REG_CAMERA_LINE_DIVISOR           0x15
#define OV511_REG_CAMERA_DATA_INPUT_SELECT      0x16
#define OV511_REG_CAMERA_RESERVED_LINE_MODE     0x17
#define OV511_REG_CAMERA_BITMASK                0x18

/* Snapshot mode camera interface register numbers */
#define OV511_REG_SNAP_CAPTURED_FRAME           0x19
#define OV511_REG_SNAP_CLAMPED_PIXEL_NUM        0x1A
#define OV511_REG_SNAP_CLAMPED_LINE_NUM         0x1B
#define OV511_REG_SNAP_PIXEL_DIVISOR            0x1C
#define OV511_REG_SNAP_LINE_DIVISOR             0x1D
#define OV511_REG_SNAP_DATA_INPUT_SELECT        0x1E
#define OV511_REG_SNAP_BITMASK                  0x1F

/* DRAM register numbers */
#define OV511_REG_DRAM_ENABLE_FLOW_CONTROL      0x20
#define OV511_REG_DRAM_READ_CYCLE_PREDICT       0x21
#define OV511_REG_DRAM_MANUAL_READ_CYCLE        0x22
#define OV511_REG_DRAM_REFRESH_COUNTER          0x23

/* ISO FIFO register numbers */
#define OV511_REG_FIFO_PACKET_SIZE              0x30
#define OV511_REG_FIFO_BITMASK                  0x31

/* PIO register numbers */
#define OV511_REG_PIO_BITMASK                   0x38
#define OV511_REG_PIO_DATA_PORT                 0x39
#define OV511_REG_PIO_BIST                      0x3E

/* I2C register numbers */
#define OV511_REG_I2C_CONTROL                   0x40
#define OV511_REG_I2C_SLAVE_ID_WRITE            0x41
#define OV511_REG_I2C_SUB_ADDRESS_3_BYTE        0x42
#define OV511_REG_I2C_SUB_ADDRESS_2_BYTE        0x43
#define OV511_REG_I2C_SLAVE_ID_READ             0x44
#define OV511_REG_I2C_DATA_PORT                 0x45
#define OV511_REG_I2C_CLOCK_PRESCALER           0x46
#define OV511_REG_I2C_TIME_OUT_COUNTER          0x47

/* I2C snapshot register numbers */
#define OV511_REG_I2C_SNAP_SUB_ADDRESS          0x48
#define OV511_REG_I2C_SNAP_DATA_PORT            0x49

/* System control register numbers */
#define OV511_REG_SYSTEM_RESET                  0x50
#define         OV511_RESET_UDC                 0x01
#define         OV511_RESET_I2C                 0x02
#define         OV511_RESET_FIFO                0x04
#define         OV511_RESET_OMNICE              0x08
#define         OV511_RESET_DRAM_INTF           0x10
#define         OV511_RESET_CAMERA_INTF         0x20
#define         OV511_RESET_OV511               0x40
#define         OV511_RESET_NOREGS              0x3F /* All but OV511 & regs */
#define         OV511_RESET_ALL                 0x7F
#define OV511_REG_SYSTEM_CLOCK_DIVISOR          0x51
#define OV511_REG_SYSTEM_SNAPSHOT               0x52
#define OV511_REG_SYSTEM_INIT                   0x53
#define OV511_REG_SYSTEM_PWR_CLK                0x54    /* OV511+ only */
#define OV511_REG_SYSTEM_LED_CTL                0x55    /* OV511+ only */
#define OV511_REG_SYSTEM_USER_DEFINED           0x5E
#define OV511_REG_SYSTEM_CUSTOM_ID              0x5F

/* OmniCE register numbers */
#define OV511_OMNICE_PREDICTION_HORIZ_Y         0x70
#define OV511_OMNICE_PREDICTION_HORIZ_UV        0x71
#define OV511_OMNICE_PREDICTION_VERT_Y          0x72
#define OV511_OMNICE_PREDICTION_VERT_UV         0x73
#define OV511_OMNICE_QUANTIZATION_HORIZ_Y       0x74
#define OV511_OMNICE_QUANTIZATION_HORIZ_UV      0x75
#define OV511_OMNICE_QUANTIZATION_VERT_Y        0x76
#define OV511_OMNICE_QUANTIZATION_VERT_UV       0x77
#define OV511_OMNICE_ENABLE                     0x78
#define OV511_OMNICE_LUT_ENABLE                 0x79            
#define OV511_OMNICE_Y_LUT_BEGIN                0x80
#define OV511_OMNICE_Y_LUT_END                  0x9F
#define OV511_OMNICE_UV_LUT_BEGIN               0xA0
#define OV511_OMNICE_UV_LUT_END                 0xBF

/* 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

/* 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 */


#define SCRATCH_BUF_SIZE 512

#define FRAMES_PER_DESC         10      /* FIXME - What should this be? */
#define FRAME_SIZE_PER_DESC     993     /* FIXME - Deprecated */
#define MAX_FRAME_SIZE_PER_DESC 993     /* For statically allocated stuff */

#define OV511_ENDPOINT_ADDRESS 1        /* Isoc endpoint number */

// CAMERA SPECIFIC
// FIXME - these can vary between specific models
#define OV7610_I2C_WRITE_ID 0x42
#define OV7610_I2C_READ_ID  0x43
#define OV6xx0_I2C_WRITE_ID 0xC0
#define OV6xx0_I2C_READ_ID  0xC1

#define OV511_I2C_CLOCK_PRESCALER 0x03

/* Prototypes */
int usb_ov511_reg_read(struct usb_device *dev, unsigned char reg);
int usb_ov511_reg_write(struct usb_device *dev,
                        unsigned char reg,
                        unsigned char value);

/* Bridge types */
enum {
        BRG_OV511,
        BRG_OV511PLUS,
};

/* Sensor types */
enum {
        SEN_UNKNOWN,
        SEN_OV7610,
        SEN_OV7620,
        SEN_OV7620AE,
        SEN_OV6620,
};

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

/* Buffer states */
enum {
        BUF_NOT_ALLOCATED,
        BUF_ALLOCATED,
        BUF_PEND_DEALLOC,       /* ov511->buf_timer is set */
};

struct usb_device;

struct ov511_sbuf {
	char *data;
	urb_t *urb;
};

enum {
	FRAME_UNUSED,           /* Unused (no MCAPTURE) */
	FRAME_READY,            /* Ready to start grabbing */
	FRAME_GRABBING,         /* In the process of being grabbed into */
	FRAME_DONE,             /* Finished grabbing, but not been synced yet */
	FRAME_ERROR,            /* Something bad happened while processing */
};

struct ov511_regvals {
        enum {
                OV511_DONE_BUS,
                OV511_REG_BUS,
                OV511_I2C_BUS,
        } bus;
        unsigned char reg;
        unsigned char val;
};

struct ov511_frame {
        char *data;             /* Frame buffer */

        int depth;              /* Bytes per pixel */
        int width;              /* Width application is expecting */
        int height;             /* Height */

        int hdrwidth;           /* Width the frame actually is */
        int hdrheight;          /* Height */

        int sub_flag;           /* Sub-capture mode for this frame? */
        unsigned int format;    /* Format for this frame */
        int segsize;            /* How big is each segment from the camera? */

        volatile int grabstate; /* State of grabbing */
        int scanstate;          /* State of scanning */

        int curline;            /* Line of frame we're working on */
        int curpix;
        int segment;            /* Segment from the incoming data */

        long scanlength;        /* uncompressed, raw data length of frame */
        long bytes_read;        /* amount of scanlength that has been read from *data */

        wait_queue_head_t wq;   /* Processes waiting */

        int snapshot;           /* True if frame was a snapshot */
};

#define OV511_NUMFRAMES 2
#define OV511_NUMSBUF   2

struct usb_ov511 {
        struct video_device vdev;

        /* Device structure */
        struct usb_device *dev;

        int customid;
        int desc;
        unsigned char iface;

        /* Determined by sensor type */
        int maxwidth;
        int maxheight;

        int brightness;
        int colour;
        int contrast;
        int hue;
        int whiteness;

        struct semaphore lock;
        int user;               /* user count for exclusive use */

        int streaming;          /* Are we streaming Isochronous? */
        int grabbing;           /* Are we grabbing? */

        int compress;           /* Should the next frame be compressed? */

        char *fbuf;             /* Videodev buffer area */

        int sub_flag;           /* Pix Array subcapture on flag */
        int subx;               /* Pix Array subcapture x offset */
        int suby;               /* Pix Array subcapture y offset */
        int subw;               /* Pix Array subcapture width */
        int subh;               /* Pix Array subcapture height */

        int curframe;           /* Current receiving sbuf */
        struct ov511_frame frame[OV511_NUMFRAMES];      

        int cursbuf;            /* Current receiving sbuf */
        struct ov511_sbuf sbuf[OV511_NUMSBUF];

        /* Scratch space from the Isochronous pipe */
        unsigned char scratch[SCRATCH_BUF_SIZE];
        int scratchlen;

        wait_queue_head_t wq;   /* Processes waiting */

        int snap_enabled;       /* Snapshot mode enabled */
        
        int bridge;             /* Type of bridge (OV511 or OV511+) */
        int sensor;             /* Type of image sensor chip */

        int packet_size;        /* Frame size per isoc desc */

                                /* proc interface */
        struct semaphore param_lock;    /* params lock for this camera */
        struct proc_dir_entry *proc_entry;      /* /proc/ov511/videoX */
        
        /* Framebuffer/sbuf management */
        int buf_state;
        struct semaphore buf_lock;
        struct timer_list buf_timer;
};

struct cam_list {
        int id;
        char *description;
};

struct palette_list {
        int num;
        char *name;
};

struct mode_list {
        int width;
        int height;
        int color;              /* 0=grayscale, 1=color */
        u8 pxcnt;               /* pixel counter */
        u8 lncnt;               /* line counter */
        u8 pxdv;                /* pixel divisor */
        u8 lndv;                /* line divisor */
        u8 m420;
        u8 common_A;
        u8 common_L;
};

#endif