ov5640.c

linux下ov5640驱动源码

#include <linux/init.h>
#include <linux/module.h>
#include <linux/i2c.h>
#include <linux/platform_device.h>
#include <linux/videodev2.h>
#include <media/v4l2-subdev.h>
#include <media/soc_camera.h>
#include <media/v4l2-chip-ident.h>
#include <linux/delay.h>

/* ANSI Color codes */
#define VT(CODES)  "\033[" CODES "m"
#define VT_NORMAL  VT("")
#define VT_RED     VT("0;32;31")
#define VT_GREEN   VT("1;32")
#define VT_YELLOW  VT("1;33")
#define VT_BLUE    VT("1;34")
#define VT_PURPLE  VT("0;35")


#define OV5640_DBG

#define xprintk(fmt, ...) \
    printk("%s()->%d " fmt, __func__, __LINE__, ## __VA_ARGS__)

#ifdef OV5640_DBG

#define _DBG(color, fmt, ...)  \
    xprintk(color "" fmt VT_NORMAL, ## __VA_ARGS__)

#define OV_INFO(fmt, args...)  _DBG(VT_GREEN, fmt, ## args)
#define OV_ERR(fmt, args...)   _DBG(VT_RED, fmt, ## args)
#else
#define OV_INFO(fmt, args...)  do {} while(0)
#define OV_ERR(fmt, args...) do {} while(0)
#endif

#define _INFO(color, fmt, ...) \
    xprintk(color "::" fmt ""VT_NORMAL, ## __VA_ARGS__)

/* mainly used in test code */
#define INFO_PURLPLE(fmt, args...) _INFO(VT_PURPLE, fmt, ## args)
#define INFO_RED(fmt, args...)     _INFO(VT_RED, fmt, ## args)
#define INFO_GREEN(fmt, args...)   _INFO(VT_GREEN, fmt, ## args)
#define INFO_BLUE(fmt, args...)    _INFO(VT_BLUE, fmt, ## args)


#define OV5640_I2C_NAME  "ov5640"

/* 
 * I2C write address: 0x78, read: 0x79 , give up least significant bit. 
 */
#define OV5640_I2C_ADDR  (0x78 >> 1)

/*
 * sensor ID
 */
#define OV5640  0x5640
#define VERSION(id, vers) ((id << 8) | (vers & 0XFF))


/* default format */
#define QVGA_WIDTH  320
#define QVGA_HEIGHT	240

#define VGA_WIDTH	640
#define VGA_HEIGHT	480

#define XGA_WIDTH	1024
#define XGA_HEIGHT	768

#define SXGA_WIDTH	1280
#define SXGA_HEIGHT	960

#define UXGA_WIDTH	1600
#define UXGA_HEIGHT	1200

#define QXGA_WIDTH	2048
#define QXGA_HEIGHT	1536

#define QSXGA_WIDTH	    2560
#define QSXGA_HEIGHT	1920  //normally 2048, but ov5640 only support simple qsxga

#define CAPTURE_FRAME_RATE  500   /* multiplied by 100 */
#define PREVIEW_FRAME_RATE  1500   /* multiplied by 100 */

#define OV5640_COLUMN_SKIP 0
#define OV5640_ROW_SKIP    0
#define OV5640_MAX_WIDTH   (QSXGA_WIDTH)
#define OV5640_MAX_HEIGHT  (QSXGA_HEIGHT)

#define OV5640_HFLIP 0x1
#define OV5640_VFLIP 0x2


enum ov5640_resolution {
    RESV_VGA = 1,
    RESV_XGA,
    RESV_SXGA,
    RESV_UXGA,
    RESV_QXGA,
    RESV_QSXGA,
};


struct regval {
    unsigned short reg;
    unsigned char  val;
};

struct ov5640_color_format {
	enum v4l2_mbus_pixelcode code;
	enum v4l2_colorspace colorspace;
};

struct ov5640_win_size {
	char *name;
    enum ov5640_resolution resv;
	unsigned int  width;
	unsigned int  height;
	const struct regval *regs;
};


struct ov5640_priv {
    struct v4l2_subdev  subdev;
    const struct ov5640_color_format *cfmt;
    const struct ov5640_win_size *win;
    int  model;
    int brightness;
    int contrast;
    int saturation;
    int hue;
    int exposure;
    int sharpness;
    int colorfx;
    int flip_flag;
};


static const struct regval ov5640_init_regs[] = {
    /* for the setting , 24M Mlck input and 24M Plck output */
    {0x3103, 0x11}, 
    {0x3008, 0x82}, /* soft reset */
    {0x3008, 0x42}, 
    {0x3103, 0x03}, /* input clock, from PLL */
    {0x3017, 0xff}, /* d[9:0] pins I/O ctrl */
    {0x3018, 0xff}, 
                    /* system control */
    {0x3034, 0x1a}, /* MIPI 10-bit mode */
    {0x3035, 0x11}, /* clock, PLL sets */
    {0x3036, 0x46}, 
    {0x3037, 0x13}, 
    {0x3108, 0x01}, /* SCCB CLK root divider */
    {0x3630, 0x36}, 
    {0x3631, 0x0e}, 
    {0x3632, 0xe2}, 
    {0x3633, 0x12}, 
    {0x3621, 0xe0}, 
    {0x3704, 0xa0}, 
    {0x3703, 0x5a}, 
    {0x3715, 0x78}, 
    {0x3717, 0x01}, 
    {0x370b, 0x60}, 
    {0x3705, 0x1a}, 
    {0x3905, 0x02}, 
    {0x3906, 0x10}, 
    {0x3901, 0x0a}, 
    {0x3731, 0x12}, 
    {0x3600, 0x08}, 
    {0x3601, 0x33}, 
    {0x302d, 0x60}, 
    {0x3620, 0x52}, 
    {0x371b, 0x20}, 
    {0x471c, 0x50}, 
    {0x3a13, 0x43}, 
    {0x3a18, 0x00}, 
    {0x3a19, 0xf8}, 
    {0x3635, 0x13}, 
    {0x3636, 0x03}, 
    {0x3634, 0x40}, 
    {0x3622, 0x01}, 
    
    {0x3c01, 0x34},  /* 50/60HZ detector */
    {0x3c04, 0x28}, 
    {0x3c05, 0x98}, 
    {0x3c06, 0x00}, 
    {0x3c07, 0x08}, 
    {0x3c08, 0x00}, 
    {0x3c09, 0x1c}, 
    {0x3c0a, 0x9c}, 
    {0x3c0b, 0x40}, 
    
    {0x3820, 0x41}, /* mirror and flip */
    {0x3821, 0x07}, 
    
    {0x3814, 0x31}, /* image windowing */
    {0x3815, 0x31}, 
    {0x3800, 0x00}, 
    {0x3801, 0x00}, 
    {0x3802, 0x00}, 
    {0x3803, 0x04}, 
    {0x3804, 0x0a}, 
    {0x3805, 0x3f}, 
    {0x3806, 0x07}, 
    {0x3807, 0x9b}, 
    {0x3808, 0x02}, /* 0x280==640 */
    {0x3809, 0x80}, 
    {0x380a, 0x01}, /* 0x1e0==480 */
    {0x380b, 0xe0}, 
    {0x380c, 0x07}, 
    {0x380d, 0x68}, 
    {0x380e, 0x03}, 
    {0x380f, 0xd8}, 
    {0x3810, 0x00}, 
    {0x3811, 0x10}, 
    {0x3812, 0x00}, 
    {0x3813, 0x06}, 
    
    {0x3618, 0x00}, 
    {0x3612, 0x29}, 
    {0x3708, 0x64}, 
    {0x3709, 0x52}, 
    {0x370c, 0x03}, 
    
    {0x3a02, 0x03}, /* AEC/AGC control */
    {0x3a03, 0xd8}, 
    {0x3a08, 0x01}, 
    {0x3a09, 0x27}, 
    {0x3a0a, 0x00}, 
    {0x3a0b, 0xf6}, 
    {0x3a0e, 0x03}, 
    {0x3a0d, 0x04}, 
    {0x3a14, 0x03}, 
    {0x3a15, 0xd8}, 
    
    {0x4001, 0x02}, /* BLC start line */
    {0x4004, 0x02}, /* BLC line number */
    {0x3000, 0x00}, /* block enable */
    {0x3002, 0x1c}, 
    {0x3004, 0xff}, /* clock enable */
    {0x3006, 0xc3}, 
    {0x300e, 0x58}, 
    {0x302e, 0x00}, 
    {0x4300, 0x32}, /* format ctrl: YUV422 UYVY */
    {0x501f, 0x00}, /* format MUX ctrl: ISP YUV422 */
    {0x4713, 0x03}, /* jpeg mode select: mode 3 */
    {0x4407, 0x04}, /* jpeg ctrl */
    {0x440e, 0x00}, 
    {0x460b, 0x35}, /* VFIFO ctrl */
    {0x460c, 0x22}, 
    {0x3824, 0x02}, 
    {0x5000, 0xa7}, /* ISP top ctrl */
    {0x5001, 0xa3}, 
    
    {0x5180, 0xff}, /* AWB ctrl */
    {0x5181, 0xf2}, 
    {0x5182, 0x00}, 
    {0x5183, 0x14}, 
    {0x5184, 0x25}, 
    {0x5185, 0x24}, 
    {0x5186, 0x09}, 
    {0x5187, 0x09}, 
    {0x5188, 0x09}, 
    {0x5189, 0x75}, 
    {0x518a, 0x54}, 
    {0x518b, 0xe0}, 
    {0x518c, 0xb2}, 
    {0x518d, 0x42}, 
    {0x518e, 0x3d}, 
    {0x518f, 0x56}, 
    {0x5190, 0x46}, 
    {0x5191, 0xf8}, 
    {0x5192, 0x04}, 
    {0x5193, 0x70}, 
    {0x5194, 0xf0}, 
    {0x5195, 0xf0}, 
    {0x5196, 0x03}, 
    {0x5197, 0x01}, 
    {0x5198, 0x04}, 
    {0x5199, 0x12}, 
    {0x519a, 0x04}, 
    {0x519b, 0x00}, 
    {0x519c, 0x06}, 
    {0x519d, 0x82}, 
    {0x519e, 0x38}, 
    
    {0x5381, 0x1e}, /* Color matrix */
    {0x5382, 0x5b}, 
    {0x5383, 0x08}, 
    {0x5384, 0x0a}, 
    {0x5385, 0x7e}, 
    {0x5386, 0x88}, 
    {0x5387, 0x7c}, 
    {0x5388, 0x6c}, 
    {0x5389, 0x10}, 
    {0x538a, 0x01}, 
    {0x538b, 0x98}, 
    
    {0x5300, 0x08}, /* Color interpolation */
    {0x5301, 0x30}, 
    {0x5302, 0x10}, 
    {0x5303, 0x00}, 
    {0x5304, 0x08}, 
    {0x5305, 0x30}, 
    {0x5306, 0x08}, 
    {0x5307, 0x16}, 
    {0x5309, 0x08}, 
    {0x530a, 0x30}, 
    {0x530b, 0x04}, 
    {0x530c, 0x06}, 
    
    {0x5480, 0x01}, /* gamma ctrl */
    {0x5481, 0x08}, 
    {0x5482, 0x14}, 
    {0x5483, 0x28}, 
    {0x5484, 0x51}, 
    {0x5485, 0x65}, 
    {0x5486, 0x71}, 
    {0x5487, 0x7d}, 
    {0x5488, 0x87}, 
    {0x5489, 0x91}, 
    {0x548a, 0x9a}, 
    {0x548b, 0xaa}, 
    {0x548c, 0xb8}, 
    {0x548d, 0xcd}, 
    {0x548e, 0xdd}, 
    {0x548f, 0xea}, 
    {0x5490, 0x1d}, 
    
    {0x5580, 0x02}, /* special digital effects(SDE) */
    {0x5583, 0x40}, 
    {0x5584, 0x10}, 
    {0x5589, 0x10}, 
    {0x558a, 0x00}, 
    {0x558b, 0xf8}, 
    
    {0x5800, 0x23}, /* LENC ctrl */
    {0x5801, 0x14}, 
    {0x5802, 0x0f}, 
    {0x5803, 0x0f}, 
    {0x5804, 0x12}, 
    {0x5805, 0x26}, 
    {0x5806, 0x0c}, 
    {0x5807, 0x08}, 
    {0x5808, 0x05}, 
    {0x5809, 0x05}, 
    {0x580a, 0x08}, 
    {0x580b, 0x0d}, 
    {0x580c, 0x08}, 
    {0x580d, 0x03}, 
    {0x580e, 0x00}, 
    {0x580f, 0x00}, 
    {0x5810, 0x03}, 
    {0x5811, 0x09}, 
    {0x5812, 0x07}, 
    {0x5813, 0x03}, 
    {0x5814, 0x00}, 
    {0x5815, 0x01}, 
    {0x5816, 0x03}, 
    {0x5817, 0x08}, 
    {0x5818, 0x0d}, 
    {0x5819, 0x08}, 
    {0x581a, 0x05}, 
    {0x581b, 0x06}, 
    {0x581c, 0x08}, 
    {0x581d, 0x0e}, 
    {0x581e, 0x29}, 
    {0x581f, 0x17}, 
    {0x5820, 0x11}, 
    {0x5821, 0x11}, 
    {0x5822, 0x15}, 
    {0x5823, 0x28}, 
    {0x5824, 0x46}, 
    {0x5825, 0x26}, 
    {0x5826, 0x08}, 
    {0x5827, 0x26}, 
    {0x5828, 0x64}, 
    {0x5829, 0x26}, 
    {0x582a, 0x24}, 
    {0x582b, 0x22}, 
    {0x582c, 0x24}, 
    {0x582d, 0x24}, 
    {0x582e, 0x06}, 
    {0x582f, 0x22}, 
    {0x5830, 0x40}, 
    {0x5831, 0x42}, 
    {0x5832, 0x24}, 
    {0x5833, 0x26}, 
    {0x5834, 0x24}, 
    {0x5835, 0x22}, 
    {0x5836, 0x22}, 
    {0x5837, 0x26}, 
    {0x5838, 0x44}, 
    {0x5839, 0x24}, 
    {0x583a, 0x26}, 
    {0x583b, 0x28}, 
    {0x583c, 0x42}, 
    {0x583d, 0xce}, 
    {0x5025, 0x00}, 
    
    {0x3a0f, 0x30}, /* AEC functions */
    {0x3a10, 0x28}, 
    {0x3a1b, 0x30}, 
    {0x3a1e, 0x26}, 
    {0x3a11, 0x60}, 
    {0x3a1f, 0x14}, 
    
    {0x3008, 0x02}, /* soft reset/pwd default value */
    {0x3035, 0x21}, /* SC PLL ctrl */
    
    {0x3c01, 0xb4}, /* Band, 0x50Hz */
    {0x3c00, 0x04}, 
    
    {0x3a19, 0x7c}, /* gain ceiling */
    
    {0x5800, 0x2c}, /* OV5640 LENC setting */
    {0x5801, 0x17}, 
    {0x5802, 0x11}, 
    {0x5803, 0x11}, 
    {0x5804, 0x15}, 
    {0x5805, 0x29}, 
    {0x5806, 0x08}, 
    {0x5807, 0x06}, 
    {0x5808, 0x04}, 
    {0x5809, 0x04}, 
    {0x580a, 0x05}, 
    {0x580b, 0x07}, 
    {0x580c, 0x06}, 
    {0x580d, 0x03}, 
    {0x580e, 0x01}, 
    {0x580f, 0x01}, 
    {0x5810, 0x03}, 
    {0x5811, 0x06}, 
    {0x5812, 0x06}, 
    {0x5813, 0x02}, 
    {0x5814, 0x01}, 
    {0x5815, 0x01}, 
    {0x5816, 0x04}, 
    {0x5817, 0x07}, 
    {0x5818, 0x06}, 
    {0x5819, 0x07}, 
    {0x581a, 0x06}, 
    {0x581b, 0x06}, 
    {0x581c, 0x06}, 
    {0x581d, 0x0e}, 
    {0x581e, 0x31}, 
    {0x581f, 0x12}, 
    {0x5820, 0x11}, 
    {0x5821, 0x11}, 
    {0x5822, 0x11}, 
    {0x5823, 0x2f}, 
    {0x5824, 0x12}, 
    {0x5825, 0x25}, 
    {0x5826, 0x39}, 
    {0x5827, 0x29}, 
    {0x5828, 0x27}, 
    {0x5829, 0x39}, 
    {0x582a, 0x26}, 
    {0x582b, 0x33}, 
    {0x582c, 0x24}, 
    {0x582d, 0x39}, 
    {0x582e, 0x28}, 
    {0x582f, 0x21}, 
    {0x5830, 0x40}, 
    {0x5831, 0x21}, 
    {0x5832, 0x17}, 
    {0x5833, 0x17}, 
    {0x5834, 0x15}, 
    {0x5835, 0x11}, 
    {0x5836, 0x24}, 
    {0x5837, 0x27}, 
    {0x5838, 0x26}, 
    {0x5839, 0x26}, 
    {0x583a, 0x26}, 
    {0x583b, 0x28}, 
    {0x583c, 0x14}, 
    {0x583d, 0xee}, 
    {0x4005, 0x1a}, /* BLC always update */
    
    {0x5381, 0x26}, /* color matrix ctrl */
    {0x5382, 0x50}, 
    {0x5383, 0x0c}, 
    {0x5384, 0x09}, 
    {0x5385, 0x74}, 
    {0x5386, 0x7d}, 
    {0x5387, 0x7e}, 
    {0x5388, 0x75}, 
    {0x5389, 0x09}, 
    {0x538b, 0x98}, 
    {0x538a, 0x01}, 
    
    {0x5580, 0x02}, /* (SDE)UVAdjust Auto Mode */
    {0x5588, 0x01}, 
    {0x5583, 0x40}, 
    {0x5584, 0x10}, 
    {0x5589, 0x0f}, 
    {0x558a, 0x00}, 
    {0x558b, 0x3f}, 
    
    {0x5308, 0x25}, /* De-Noise, 0xAuto */
    {0x5304, 0x08}, 
    {0x5305, 0x30}, 
    {0x5306, 0x10}, 
    {0x5307, 0x20}, 
    
    {0x5180, 0xff}, /* awb ctrl */
    {0x5181, 0xf2}, 
    {0x5182, 0x11}, 
    {0x5183, 0x14}, 
    {0x5184, 0x25}, 
    {0x5185, 0x24}, 
    {0x5186, 0x10}, 
    {0x5187, 0x12}, 
    {0x5188, 0x10}, 
    {0x5189, 0x80}, 
    {0x518a, 0x54}, 
    {0x518b, 0xb8}, 
    {0x518c, 0xb2},