/* * A V4L2 driver for OV5647 cameras. * */ #include #include #include #include #include #include #include #include #include #include #include #include "camera.h" #include "sensor_helper.h" MODULE_AUTHOR("raymonxiu"); MODULE_DESCRIPTION("A low-level driver for OV5647 sensors"); MODULE_LICENSE("GPL"); //for internel driver debug #define DEV_DBG_EN 0 #if(DEV_DBG_EN == 1) #define vfe_dev_dbg(x,arg...) printk("[OV5647]"x,##arg) #else #define vfe_dev_dbg(x,arg...) #endif #define vfe_dev_err(x,arg...) printk("[OV5647]"x,##arg) #define vfe_dev_print(x,arg...) printk("[OV5647]"x,##arg) #define LOG_ERR_RET(x) { \ int ret; \ ret = x; \ if(ret < 0) {\ vfe_dev_err("error at %s\n",__func__); \ return ret; \ } \ } //define module timing #define MCLK (24*1000*1000) #define VREF_POL V4L2_MBUS_VSYNC_ACTIVE_LOW #define HREF_POL V4L2_MBUS_HSYNC_ACTIVE_HIGH #define CLK_POL V4L2_MBUS_PCLK_SAMPLE_RISING #define V4L2_IDENT_SENSOR 0x5647 /* * Our nominal (default) frame rate. */ #ifdef FPGA #define SENSOR_FRAME_RATE 15 #else #define SENSOR_FRAME_RATE 30 #endif /* * The ov5647 sits on i2c with ID 0x6c */ #define I2C_ADDR 0x6c #define SENSOR_NAME "ov5647" //static struct delayed_work sensor_s_ae_ratio_work; static struct v4l2_subdev *glb_sd; /* * Information we maintain about a known sensor. */ struct sensor_format_struct; /* coming later */ struct cfg_array { /* coming later */ struct regval_list * regs; int size; }; static inline struct sensor_info *to_state(struct v4l2_subdev *sd) { return container_of(sd, struct sensor_info, sd); } static int ov5647_sensor_vts; /* * The default register settings * */ static struct regval_list sensor_default_regs[] = { //Slave_ID=0x6c; {0x0100,0x00}, // {0x0103,0x01}, // //delay(5ms) {REG_DLY,0x05}, //must delay {0x3013,0x08}, //bit3=1 bypass internal dvdd ldo {0x5000,0x03}, // ;No lenc,WBC on {0x5001,0x00}, // ;manual AWB //{0x5002,0x41}, // //{0x5003,0x08}, // //{0x5005,0x31}, // //{0x5025,0x00}, //awb src sel //{0x5046,0x09}, // //{0x5180,0x08}, // //{0x5186,0x04}, // //{0x5187,0x00}, // //{0x5188,0x04}, // //{0x5189,0x00}, // //{0x518a,0x04}, // //{0x518b,0x00}, // {0x5a00,0x08}, // // {0x3000,0xff}, // // {0x3001,0xff}, // // {0x3002,0xff}, // {0x3a18,0x01}, // {0x3a19,0xe0}, // {0x3c01,0x80}, // {0x3b07,0x0c}, // {0x3630,0x2e}, // {0x3632,0xe2}, // {0x3633,0x23}, // {0x3634,0x44}, // {0x3620,0x64}, // {0x3621,0xe0}, // {0x3600,0x37}, // {0x3704,0xa0}, // {0x3703,0x5a}, // {0x3715,0x78}, // {0x3717,0x01}, // {0x3731,0x02}, // {0x370b,0x60}, // {0x3705,0x1a}, // {0x3f05,0x02}, // {0x3f06,0x10}, // {0x3f01,0x0a}, // {0x3a08,0x00}, // {0x3a0a,0x00}, // {0x3a0f,0x58}, // {0x3a10,0x50}, // {0x3a1b,0x58}, // {0x3a1e,0x50}, // {0x3a11,0x60}, // {0x3a1f,0x28}, // {0x0100,0x01}, // {0x4000,0x89}, //0x89 {0x4001,0x02}, // {0x4002,0xc5}, {0x4004,0x06}, // {0x4005,0x1a}, // // manual AWB,manual AE,close Lenc,open WBC {0x3503,0x13}, // ;manual AE 13 {0x3501,0x10}, // {0x3502,0x80}, // {0x350a,0x00}, // {0x350b,0x7f}, // {0x350c,0x00}, // vts diff manual vts set to 0 {0x350d,0x00}, // vts diff manual vts set to 0 {0x3011,0x22}, // bit[6:5] drive strength }; //for capture static struct regval_list sensor_qsxga_regs[] = { //qsxga: 2592*1936@15fps {0x3035,0x11}, //clk #ifdef QSXGA_12FPS {0x3036,0x50}, //clk #else {0x3036,0x64}, //clk #endif {0x303c,0x11}, //clk {0x3820,0x00}, //vbin {0x3821,0x06}, //hbin {0x3612,0x4b}, // {0x3618,0x04}, // {0x3708,0x24}, // {0x3709,0x12}, // {0x370c,0x00}, // {0x380c,0x0a}, //[4:0]hts high {0x380d,0x96}, //[7:0]hts low {0x380e,0x07}, //[4:0]vts high {0x380f,0xb0}, //[7:0]vts low {0x3814,0x11}, //h subsample inc {0x3815,0x11}, //v subsample inc {0x3808,0x0a}, //[4:0]dvp h out high {0x3809,0x20}, //[7:0]dvp h out low {0x380a,0x07}, //[4:0]dvp v out high {0x380b,0x98}, //[7:0]dvp v out low {0x3800,0x00}, //[4:0]dvp h start {0x3801,0x0c}, //[7:0]dvp h start {0x3802,0x00}, //[4:0]dvp v start {0x3803,0x04}, //[7:0]dvp v start {0x3804,0x0a}, //[4:0]dvp h end {0x3805,0x33}, //[7:0]dvp h end {0x3806,0x07}, //[4:0]dvp v end {0x3807,0xa3}, //[7:0]dvp v end // {0x3a08,0x01}, // // {0x3a09,0x27}, // // {0x3a0a,0x00}, // // {0x3a0b,0xf6}, // // {0x3a0d,0x08}, // // {0x3a0e,0x06}, // }; static struct regval_list sensor_sxga_regs[] = { //SXGA: 1280*960@30fps #ifdef FPGA_VER {0x3035,0x21}, //clk #else {0x3035,0x11}, //clk #endif {0x3036,0x46}, //clk {0x303c,0x11}, //clk {0x3820,0x41}, //vbin {0x3821,0x07}, //hbin {0x3612,0x49}, // {0x3618,0x00}, // {0x3708,0x22}, // {0x3709,0x52}, // {0x370c,0x03}, // {0x380c,0x07}, //[4:0]hts high {0x380d,0x68}, //[7:0]hts low {0x380e,0x03}, //[4:0]vts high {0x380f,0xd8}, //[7:0]vts low {0x3814,0x31}, //h subsample inc {0x3815,0x31}, //v subsample inc {0x3808,0x05}, //[4:0]dvp h out high {0x3809,0x00}, //[7:0]dvp h out low {0x380a,0x03}, //[4:0]dvp v out high {0x380b,0xc0}, //[7:0]dvp v out low {0x3800,0x00}, //[4:0]dvp h start {0x3801,0x18}, //[7:0]dvp h start {0x3802,0x00}, //[4:0]dvp v start {0x3803,0x0e}, //[7:0]dvp v start {0x3804,0x0a}, //[4:0]dvp h end {0x3805,0x27}, //[7:0]dvp h end {0x3806,0x07}, //[4:0]dvp v end {0x3807,0x95}, //[7:0]dvp v end // {0x3a08,0x01}, // // {0x3a09,0x27}, // // {0x3a0a,0x00}, // // {0x3a0b,0xf6}, // // {0x3a0d,0x04}, // // {0x3a0e,0x03}, // }; //for video static struct regval_list sensor_1080p_regs[] = { //1080: 1920*1080@30fps {0x3035,0x11}, //clk {0x3036,0x50}, //clk {0x303c,0x11}, //clk {0x3820,0x00}, //vbin {0x3821,0x06}, //hbin {0x3612,0x4b}, // {0x3618,0x04}, // {0x3708,0x24}, // {0x3709,0x12}, // {0x370c,0x00}, // {0x380c,0x09}, //[4:0]hts high {0x380d,0x4e}, //[7:0]hts low {0x380e,0x04}, //[4:0]vts high {0x380f,0x60}, //[7:0]vts low {0x3814,0x11}, //h subsample inc {0x3815,0x11}, //v subsample inc {0x3808,0x07}, //[4:0]dvp h out high {0x3809,0x80}, //[7:0]dvp h out low {0x380a,0x04}, //[4:0]dvp v out high {0x380b,0x38}, //[7:0]dvp v out low {0x3800,0x01}, //[4:0]dvp h start {0x3801,0x5c}, //[7:0]dvp h start {0x3802,0x01}, //[4:0]dvp v start {0x3803,0xb2}, //[7:0]dvp v start {0x3804,0x08}, //[4:0]dvp h end {0x3805,0xe3}, //[7:0]dvp h end {0x3806,0x05}, //[4:0]dvp v end {0x3807,0xf1}, //[7:0]dvp v end // {0x3a08,0x01}, // // {0x3a09,0x4b}, // // {0x3a0a,0x01}, // // {0x3a0b,0x14}, // // {0x3a0d,0x04}, // // {0x3a0e,0x03}, // }; static struct regval_list sensor_720p_regs[] = { //720: 1280*720@30fps {0x3035,0x21}, //clk {0x3036,0x69}, //clk {0x303c,0x12}, //clk {0x3820,0x41}, //vbin {0x3821,0x07}, //hbin {0x3612,0x49}, // {0x3618,0x00}, // {0x3708,0x22}, // {0x3709,0x52}, // {0x370c,0x03}, // {0x380c,0x06}, //[4:0]hts high {0x380d,0xd6}, //[7:0]hts low {0x380e,0x03}, //[4:0]vts high {0x380f,0x20}, //[7:0]vts low {0x3814,0x31}, //h subsample inc {0x3815,0x31}, //v subsample inc {0x3808,0x05}, //[4:0]dvp h out high {0x3809,0x00}, //[7:0]dvp h out low {0x380a,0x02}, //[4:0]dvp v out high {0x380b,0xd0}, //[7:0]dvp v out low {0x3800,0x00}, //[4:0]dvp h start {0x3801,0x18}, //[7:0]dvp h start {0x3802,0x00}, //[4:0]dvp v start {0x3803,0xf8}, //[7:0]dvp v start {0x3804,0x0a}, //[4:0]dvp h end {0x3805,0x27}, //[7:0]dvp h end {0x3806,0x06}, //[4:0]dvp v end {0x3807,0xa7}, //[7:0]dvp v end // {0x3a08,0x00}, // // {0x3a09,0xdf}, // // {0x3a0a,0x00}, // // {0x3a0b,0xba}, // // {0x3a0d,0x04}, // // {0x3a0e,0x03}, // }; //misc static struct regval_list sensor_oe_disable_regs[] = { {0x3000,0x00}, {0x3001,0x00}, {0x3002,0x00}, }; static struct regval_list sensor_oe_enable_regs[] = { {0x3000,0x0f}, {0x3001,0xff}, {0x3002,0xe4}, }; /* * Here we'll try to encapsulate the changes for just the output * video format. * */ static struct regval_list sensor_fmt_raw[] = { }; static int sensor_s_fps(struct v4l2_subdev *sd) { return 0; } static int sensor_g_exp(struct v4l2_subdev *sd, __s32 *value) { struct sensor_info *info = to_state(sd); *value = info->exp; vfe_dev_dbg("sensor_get_exposure = %d\n", info->exp); return 0; } static int sensor_s_exp_gain(struct v4l2_subdev *sd, struct sensor_exp_gain *exp_gain) { int exp_val, gain_val,frame_length,shutter; unsigned char explow=0,expmid=0,exphigh=0; unsigned char gainlow=0,gainhigh=0; struct sensor_info *info = to_state(sd); exp_val = exp_gain->exp_val; gain_val = exp_gain->gain_val; // if((info->exp == exp_val)&&(info->gain == gain_val)) // return 0; if(gain_val<1*16) gain_val=16; if(gain_val>64*16-1) gain_val=64*16-1; if(exp_val>0xfffff) exp_val=0xfffff; gainlow=(unsigned char)(gain_val&0xff); gainhigh=(unsigned char)((gain_val>>8)&0x3); exphigh = (unsigned char) ( (0x0f0000&exp_val)>>16); expmid = (unsigned char) ( (0x00ff00&exp_val)>>8); explow = (unsigned char) ( (0x0000ff&exp_val) ); shutter = exp_val/16; //printk("sensor_vts = %d\n",sensor_vts); if(shutter > ov5647_sensor_vts- 4) frame_length = shutter + 4; else frame_length = ov5647_sensor_vts; //printk("exp_val = %d,gain_val = %d\n",exp_val,gain_val); sensor_write(sd, 0x3208, 0x00);//enter group write sensor_write(sd, 0x3503, 0x07); sensor_write(sd, 0x380f, (frame_length & 0xff)); sensor_write(sd, 0x380e, (frame_length >> 8)); sensor_write(sd, 0x350b, gainlow); sensor_write(sd, 0x350a, gainhigh); sensor_write(sd, 0x3502, explow); sensor_write(sd, 0x3501, expmid); sensor_write(sd, 0x3500, exphigh); sensor_write(sd, 0x3208, 0x10);//end group write sensor_write(sd, 0x3208, 0xa0);//init group write info->exp = exp_val; info->gain = gain_val; return 0; } static int sensor_s_exp(struct v4l2_subdev *sd, unsigned int exp_val) { unsigned char explow,expmid,exphigh; struct sensor_info *info = to_state(sd); if(exp_val>0xfffff) exp_val=0xfffff; // if(info->exp == exp_val && exp_val <= (1968)*16) // return 0; sensor_write(sd, 0x3208, 0x00);//enter group write sensor_write(sd, 0x3503, 0x13); //sensor_write(sd, 0x350d, 0x0); //sensor_write(sd, 0x350c, 0x0); exphigh = (unsigned char) ( (0x0f0000&exp_val)>>16); expmid = (unsigned char) ( (0x00ff00&exp_val)>>8); explow = (unsigned char) ( (0x0000ff&exp_val) ); //sensor_write(sd, 0x3208, 0x00);//enter group write sensor_write(sd, 0x3502, explow); sensor_write(sd, 0x3501, expmid); sensor_write(sd, 0x3500, exphigh); sensor_write(sd, 0x3208, 0x10);//end group write sensor_write(sd, 0x3208, 0xa0);//init group write //printk("5647 sensor_set_exp = %d, Done!\n", exp_val); info->exp = exp_val; return 0; } static int sensor_g_gain(struct v4l2_subdev *sd, __s32 *value) { struct sensor_info *info = to_state(sd); *value = info->gain; vfe_dev_dbg("sensor_get_gain = %d\n", info->gain); return 0; } static int sensor_s_gain(struct v4l2_subdev *sd, int gain_val) { struct sensor_info *info = to_state(sd); unsigned char gainlow=0; unsigned char gainhigh=0; if(gain_val<1*16) gain_val=16; if(gain_val>64*16-1) gain_val=64*16-1; // if(info->gain == gain_val) // return 0; gainlow=(unsigned char)(gain_val&0xff); gainhigh=(unsigned char)((gain_val>>8)&0x3); sensor_write(sd, 0x3208, 0x00);//enter group write sensor_write(sd, 0x3503, 0x13); sensor_write(sd, 0x350b, gainlow); sensor_write(sd, 0x350a, gainhigh); sensor_write(sd, 0x3208, 0x10);//end group write sensor_write(sd, 0x3208, 0xa0);//init group write //printk("5647 sensor_set_gain = %d, Done!\n", gain_val); info->gain = gain_val; return 0; } static int sensor_s_sw_stby(struct v4l2_subdev *sd, int on_off) { int ret; data_type rdval; ret=sensor_read(sd, 0x0100, &rdval); if(ret!=0) return ret; if(on_off==CSI_GPIO_HIGH)//sw stby on { ret=sensor_write(sd, 0x0100, rdval&0xfe); } else//sw stby off { ret=sensor_write(sd, 0x0100, rdval|0x01); } return ret; } /* * Stuff that knows about the sensor. */ static int sensor_power(struct v4l2_subdev *sd, int on) { int ret = 0; switch(on) { case CSI_SUBDEV_STBY_ON: vfe_dev_dbg("CSI_SUBDEV_STBY_ON!\n"); ret = sensor_s_sw_stby(sd, CSI_GPIO_HIGH); if(ret < 0) vfe_dev_err("soft stby falied!\n"); usleep_range(10000,12000); cci_lock(sd); vfe_gpio_write(sd,PWDN,CSI_GPIO_HIGH); cci_unlock(sd); vfe_set_mclk(sd,OFF); break; case CSI_SUBDEV_STBY_OFF: vfe_dev_dbg("CSI_SUBDEV_STBY_OFF!\n"); cci_lock(sd); vfe_set_mclk_freq(sd,MCLK); vfe_set_mclk(sd,ON); usleep_range(10000,12000); vfe_gpio_write(sd,PWDN,CSI_GPIO_LOW); usleep_range(10000,12000); ret = sensor_s_sw_stby(sd, CSI_GPIO_LOW); if(ret < 0) vfe_dev_err("soft stby off falied!\n"); cci_unlock(sd); break; case CSI_SUBDEV_PWR_ON: vfe_dev_dbg("CSI_SUBDEV_PWR_ON!\n"); cci_lock(sd); vfe_gpio_set_status(sd,PWDN,1);//set the gpio to output vfe_gpio_set_status(sd,RESET,1);//set the gpio to output vfe_gpio_write(sd,PWDN,CSI_GPIO_HIGH); vfe_gpio_write(sd,RESET,CSI_GPIO_HIGH); vfe_set_mclk_freq(sd,MCLK); vfe_set_mclk(sd,ON); usleep_range(10000,12000); vfe_set_pmu_channel(sd,IOVDD,ON); usleep_range(5000,6000); vfe_set_pmu_channel(sd,AVDD,ON); usleep_range(5000,6000); vfe_set_pmu_channel(sd,DVDD,ON); vfe_set_pmu_channel(sd,AFVDD,ON); usleep_range(10000,12000); vfe_gpio_write(sd,RESET,CSI_GPIO_LOW); vfe_gpio_write(sd,PWDN,CSI_GPIO_LOW); cci_unlock(sd); break; case CSI_SUBDEV_PWR_OFF: vfe_dev_dbg("CSI_SUBDEV_PWR_OFF!\n"); cci_lock(sd); vfe_gpio_write(sd,RESET,CSI_GPIO_HIGH); vfe_gpio_write(sd,PWDN,CSI_GPIO_HIGH); usleep_range(10000,12000); vfe_set_pmu_channel(sd,DVDD,OFF); usleep_range(5000,6000); vfe_set_pmu_channel(sd,AVDD,OFF); usleep_range(5000,6000); vfe_set_pmu_channel(sd,IOVDD,OFF); vfe_set_pmu_channel(sd,AFVDD,OFF); vfe_set_mclk(sd,OFF); usleep_range(10000,12000); vfe_gpio_set_status(sd,RESET,0);//set the gpio to input vfe_gpio_set_status(sd,PWDN,0);//set the gpio to input cci_unlock(sd); break; default: return -EINVAL; } return 0; } static int sensor_reset(struct v4l2_subdev *sd, u32 val) { switch(val) { case 0: vfe_gpio_write(sd,RESET,CSI_GPIO_HIGH); usleep_range(10000,12000); break; case 1: vfe_gpio_write(sd,RESET,CSI_GPIO_LOW); usleep_range(10000,12000); break; default: return -EINVAL; } return 0; } static int sensor_detect(struct v4l2_subdev *sd) { data_type rdval; LOG_ERR_RET(sensor_read(sd, 0x300a, &rdval)) if(rdval != 0x56) return -ENODEV; LOG_ERR_RET(sensor_read(sd, 0x300b, &rdval)) if(rdval != 0x47) return -ENODEV; return 0; } static int sensor_init(struct v4l2_subdev *sd, u32 val) { int ret; struct sensor_info *info = to_state(sd); vfe_dev_dbg("sensor_init\n"); /*Make sure it is a target sensor*/ ret = sensor_detect(sd); if (ret) { vfe_dev_err("chip found is not an target chip.\n"); return ret; } vfe_get_standby_mode(sd,&info->stby_mode); if((info->stby_mode == HW_STBY || info->stby_mode == SW_STBY) \ && info->init_first_flag == 0) { vfe_dev_print("stby_mode and init_first_flag = 0\n"); return 0; } info->focus_status = 0; info->low_speed = 0; info->width = QSXGA_WIDTH; info->height = QSXGA_HEIGHT; info->hflip = 0; info->vflip = 0; info->gain = 0; info->tpf.numerator = 1; info->tpf.denominator = 30; /* 30fps */ ret = sensor_write_array(sd, sensor_default_regs, ARRAY_SIZE(sensor_default_regs)); if(ret < 0) { vfe_dev_err("write sensor_default_regs error\n"); return ret; } if(info->stby_mode == 0) info->init_first_flag = 0; info->preview_first_flag = 1; return 0; } static long sensor_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg) { int ret=0; struct sensor_info *info = to_state(sd); switch(cmd) { case GET_CURRENT_WIN_CFG: if(info->current_wins != NULL) { memcpy( arg, info->current_wins, sizeof(struct sensor_win_size) ); ret=0; } else { vfe_dev_err("empty wins!\n"); ret=-1; } break; case SET_FPS: break; case ISP_SET_EXP_GAIN: sensor_s_exp_gain(sd, (struct sensor_exp_gain *)arg); break; default: return -EINVAL; } return ret; } /* * Store information about the video data format. */ static struct sensor_format_struct { __u8 *desc; //__u32 pixelformat; enum v4l2_mbus_pixelcode mbus_code; struct regval_list *regs; int regs_size; int bpp; /* Bytes per pixel */ }sensor_formats[] = { { .desc = "Raw RGB Bayer", .mbus_code = V4L2_MBUS_FMT_SBGGR10_1X10, .regs = sensor_fmt_raw, .regs_size = ARRAY_SIZE(sensor_fmt_raw), .bpp = 1 }, }; #define N_FMTS ARRAY_SIZE(sensor_formats) /* * Then there is the issue of window sizes. Try to capture the info here. */ static struct sensor_win_size sensor_win_sizes[] = { /* qsxga: 2592*1936 */ { .width = QSXGA_WIDTH, .height = QSXGA_HEIGHT, .hoffset = 0, .voffset = 0, .hts = 2710, .vts = 1968, #ifdef QSXGA_12FPS .pclk = 64*1000*1000, #else .pclk = 80*1000*1000, #endif .fps_fixed = 2, .bin_factor = 1, .intg_min = 1, //.intg_max = 2000<<4, .intg_max = (1968/1)<<4, .gain_min = 1<<4, .gain_max = 8<<4, .regs = sensor_qsxga_regs, .regs_size = ARRAY_SIZE(sensor_qsxga_regs), .set_size = NULL, }, /* 1080P */ { .width = HD1080_WIDTH, .height = HD1080_HEIGHT, .hoffset = 0, .voffset = 0, .hts = 2382, .vts = 1120, .pclk = 64*1000*1000, .fps_fixed = 1, .bin_factor = 1, .intg_min = 1<<4, .intg_max = 1120<<4, .gain_min = 1<<4, .gain_max = 10<<4, .regs = sensor_1080p_regs,// .regs_size = ARRAY_SIZE(sensor_1080p_regs),// .set_size = NULL, }, /* SXGA */ { .width = SXGA_WIDTH, .height = SXGA_HEIGHT, .hoffset = 0, .voffset = 0, .hts = 1896, .vts = 984, .pclk = 56*1000*1000, .fps_fixed = 1, .bin_factor = 1, .intg_min = 1, .intg_max = 984<<4, .gain_min = 1<<4, .gain_max = 10<<4, .regs = sensor_sxga_regs, .regs_size = ARRAY_SIZE(sensor_sxga_regs), .set_size = NULL, }, /* 720p */ { .width = HD720_WIDTH, .height = HD720_HEIGHT, .hoffset = 0, .voffset = 0, .hts = 1750, .vts = 800, .pclk = 42*1000*1000, .fps_fixed = 1, .bin_factor = 1, .intg_min = 1, .intg_max = 800<<4, .gain_min = 1<<4, .gain_max = 10<<4, .regs = sensor_720p_regs,// .regs_size = ARRAY_SIZE(sensor_720p_regs),// .set_size = NULL, }, /* VGA */ { .width = VGA_WIDTH, .height = VGA_HEIGHT, .hoffset = 320, .voffset = 240, .hts = 1896, .vts = 984, .pclk = 56*1000*1000, .fps_fixed = 1, .bin_factor = 1, .intg_min = 1, .intg_max = 984<<4, .gain_min = 1<<4, .gain_max = 10<<4, .regs = sensor_sxga_regs, .regs_size = ARRAY_SIZE(sensor_sxga_regs), .set_size = NULL, }, }; #define N_WIN_SIZES (ARRAY_SIZE(sensor_win_sizes)) static int sensor_enum_fmt(struct v4l2_subdev *sd, unsigned index, enum v4l2_mbus_pixelcode *code) { if (index >= N_FMTS) return -EINVAL; *code = sensor_formats[index].mbus_code; return 0; } static int sensor_enum_size(struct v4l2_subdev *sd, struct v4l2_frmsizeenum *fsize) { if(fsize->index > N_WIN_SIZES-1) return -EINVAL; fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE; fsize->discrete.width = sensor_win_sizes[fsize->index].width; fsize->discrete.height = sensor_win_sizes[fsize->index].height; return 0; } static int sensor_try_fmt_internal(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *fmt, struct sensor_format_struct **ret_fmt, struct sensor_win_size **ret_wsize) { int index; struct sensor_win_size *wsize; struct sensor_info *info = to_state(sd); for (index = 0; index < N_FMTS; index++) if (sensor_formats[index].mbus_code == fmt->code) break; if (index >= N_FMTS) return -EINVAL; if (ret_fmt != NULL) *ret_fmt = sensor_formats + index; /* * Fields: the sensor devices claim to be progressive. */ fmt->field = V4L2_FIELD_NONE; /* * Round requested image size down to the nearest * we support, but not below the smallest. */ for (wsize = sensor_win_sizes; wsize < sensor_win_sizes + N_WIN_SIZES; wsize++) if (fmt->width >= wsize->width && fmt->height >= wsize->height) break; if (wsize >= sensor_win_sizes + N_WIN_SIZES) wsize--; /* Take the smallest one */ if (ret_wsize != NULL) *ret_wsize = wsize; /* * Note the size we'll actually handle. */ fmt->width = wsize->width; fmt->height = wsize->height; info->current_wins = wsize; return 0; } static int sensor_try_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *fmt) { return sensor_try_fmt_internal(sd, fmt, NULL, NULL); } static int sensor_g_mbus_config(struct v4l2_subdev *sd, struct v4l2_mbus_config *cfg) { cfg->type = V4L2_MBUS_PARALLEL; cfg->flags = V4L2_MBUS_MASTER | VREF_POL | HREF_POL | CLK_POL ; return 0; } /* * Set a format. */ static int sensor_s_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *fmt) { int ret; struct sensor_format_struct *sensor_fmt; struct sensor_win_size *wsize; struct sensor_info *info = to_state(sd); vfe_dev_dbg("sensor_s_fmt\n"); sensor_write_array(sd, sensor_oe_disable_regs, ARRAY_SIZE(sensor_oe_disable_regs)); ret = sensor_try_fmt_internal(sd, fmt, &sensor_fmt, &wsize); if (ret) return ret; if(info->capture_mode == V4L2_MODE_VIDEO) { //video } else if(info->capture_mode == V4L2_MODE_IMAGE) { //image } sensor_write_array(sd, sensor_fmt->regs, sensor_fmt->regs_size); ret = 0; if (wsize->regs) LOG_ERR_RET(sensor_write_array(sd, wsize->regs, wsize->regs_size)) if (wsize->set_size) LOG_ERR_RET(wsize->set_size(sd)) info->fmt = sensor_fmt; info->width = wsize->width; info->height = wsize->height; ov5647_sensor_vts = wsize->vts; vfe_dev_print("s_fmt set width = %d, height = %d\n",wsize->width,wsize->height); if(info->capture_mode == V4L2_MODE_VIDEO) { //video } else { //capture image } sensor_write_array(sd, sensor_oe_enable_regs, ARRAY_SIZE(sensor_oe_enable_regs)); return 0; } /* * Implement G/S_PARM. There is a "high quality" mode we could try * to do someday; for now, we just do the frame rate tweak. */ static int sensor_g_parm(struct v4l2_subdev *sd, struct v4l2_streamparm *parms) { struct v4l2_captureparm *cp = &parms->parm.capture; struct sensor_info *info = to_state(sd); if (parms->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) return -EINVAL; memset(cp, 0, sizeof(struct v4l2_captureparm)); cp->capability = V4L2_CAP_TIMEPERFRAME; cp->capturemode = info->capture_mode; return 0; } static int sensor_s_parm(struct v4l2_subdev *sd, struct v4l2_streamparm *parms) { struct v4l2_captureparm *cp = &parms->parm.capture; struct sensor_info *info = to_state(sd); vfe_dev_dbg("sensor_s_parm\n"); if (parms->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) return -EINVAL; if (info->tpf.numerator == 0) return -EINVAL; info->capture_mode = cp->capturemode; return 0; } static int sensor_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc) { /* Fill in min, max, step and default value for these controls. */ /* see include/linux/videodev2.h for details */ switch (qc->id) { case V4L2_CID_GAIN: return v4l2_ctrl_query_fill(qc, 1*16, 64*16-1, 1, 1*16); case V4L2_CID_EXPOSURE: return v4l2_ctrl_query_fill(qc, 0, 65535*16, 1, 0); case V4L2_CID_FRAME_RATE: return v4l2_ctrl_query_fill(qc, 15, 120, 1, 120); } return -EINVAL; } static int sensor_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) { switch (ctrl->id) { case V4L2_CID_GAIN: return sensor_g_gain(sd, &ctrl->value); case V4L2_CID_EXPOSURE: return sensor_g_exp(sd, &ctrl->value); } return -EINVAL; } static int sensor_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) { struct v4l2_queryctrl qc; int ret; qc.id = ctrl->id; ret = sensor_queryctrl(sd, &qc); if (ret < 0) { return ret; } if (ctrl->value < qc.minimum || ctrl->value > qc.maximum) { vfe_dev_err("max gain qurery is %d,min gain qurey is %d\n",qc.maximum,qc.minimum); return -ERANGE; } switch (ctrl->id) { case V4L2_CID_GAIN: return sensor_s_gain(sd, ctrl->value); case V4L2_CID_EXPOSURE: return sensor_s_exp(sd, ctrl->value); case V4L2_CID_FRAME_RATE: return sensor_s_fps(sd); } return -EINVAL; } static int sensor_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip) { struct i2c_client *client = v4l2_get_subdevdata(sd); return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_SENSOR, 0); } /* ----------------------------------------------------------------------- */ static const struct v4l2_subdev_core_ops sensor_core_ops = { .g_chip_ident = sensor_g_chip_ident, .g_ctrl = sensor_g_ctrl, .s_ctrl = sensor_s_ctrl, .queryctrl = sensor_queryctrl, .reset = sensor_reset, .init = sensor_init, .s_power = sensor_power, .ioctl = sensor_ioctl, }; static const struct v4l2_subdev_video_ops sensor_video_ops = { .enum_mbus_fmt = sensor_enum_fmt, .enum_framesizes = sensor_enum_size, .try_mbus_fmt = sensor_try_fmt, .s_mbus_fmt = sensor_s_fmt, .s_parm = sensor_s_parm, .g_parm = sensor_g_parm, .g_mbus_config = sensor_g_mbus_config, }; static const struct v4l2_subdev_ops sensor_ops = { .core = &sensor_core_ops, .video = &sensor_video_ops, }; /* ----------------------------------------------------------------------- */ static struct cci_driver cci_drv = { .name = SENSOR_NAME, .addr_width = CCI_BITS_16, .data_width = CCI_BITS_8, }; static int sensor_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct v4l2_subdev *sd; struct sensor_info *info; info = kzalloc(sizeof(struct sensor_info), GFP_KERNEL); if (info == NULL) return -ENOMEM; sd = &info->sd; glb_sd = sd; cci_dev_probe_helper(sd, client, &sensor_ops, &cci_drv); info->fmt = &sensor_formats[0]; info->af_first_flag = 1; info->init_first_flag = 1; return 0; } static int sensor_remove(struct i2c_client *client) { struct v4l2_subdev *sd; sd = cci_dev_remove_helper(client, &cci_drv); kfree(to_state(sd)); return 0; } static const struct i2c_device_id sensor_id[] = { {SENSOR_NAME, 0 }, { } }; MODULE_DEVICE_TABLE(i2c, sensor_id); static struct i2c_driver sensor_driver = { .driver = { .owner = THIS_MODULE, .name = SENSOR_NAME, }, .probe = sensor_probe, .remove = sensor_remove, .id_table = sensor_id, }; static __init int init_sensor(void) { return cci_dev_init_helper(&sensor_driver); } static __exit void exit_sensor(void) { cci_dev_exit_helper(&sensor_driver); } module_init(init_sensor); module_exit(exit_sensor);