diff options
Diffstat (limited to 'drivers/media/video/gspca/pac207.c')
| -rw-r--r-- | drivers/media/video/gspca/pac207.c | 37 |
1 files changed, 11 insertions, 26 deletions
diff --git a/drivers/media/video/gspca/pac207.c b/drivers/media/video/gspca/pac207.c index 95a97ab684cd..96659433d248 100644 --- a/drivers/media/video/gspca/pac207.c +++ b/drivers/media/video/gspca/pac207.c @@ -35,25 +35,17 @@ MODULE_LICENSE("GPL"); #define PAC207_BRIGHTNESS_MIN 0 #define PAC207_BRIGHTNESS_MAX 255 -#define PAC207_BRIGHTNESS_DEFAULT 4 /* power on default: 4 */ - -/* An exposure value of 4 also works (3 does not) but then we need to lower - the compression balance setting when in 352x288 mode, otherwise the usb - bandwidth is not enough and packets get dropped resulting in corrupt - frames. The problem with this is that when the compression balance gets - lowered below 0x80, the pac207 starts using a different compression - algorithm for some lines, these lines get prefixed with a 0x2dd2 prefix - and currently we do not know how to decompress these lines, so for now - we use a minimum exposure value of 5 */ -#define PAC207_EXPOSURE_MIN 5 +#define PAC207_BRIGHTNESS_DEFAULT 46 + +#define PAC207_EXPOSURE_MIN 3 #define PAC207_EXPOSURE_MAX 26 -#define PAC207_EXPOSURE_DEFAULT 5 /* power on default: 3 ?? */ -#define PAC207_EXPOSURE_KNEE 11 /* 4 = 30 fps, 11 = 8, 15 = 6 */ +#define PAC207_EXPOSURE_DEFAULT 5 /* power on default: 3 */ +#define PAC207_EXPOSURE_KNEE 8 /* 4 = 30 fps, 11 = 8, 15 = 6 */ #define PAC207_GAIN_MIN 0 #define PAC207_GAIN_MAX 31 #define PAC207_GAIN_DEFAULT 9 /* power on default: 9 */ -#define PAC207_GAIN_KNEE 20 +#define PAC207_GAIN_KNEE 31 #define PAC207_AUTOGAIN_DEADZONE 30 @@ -166,16 +158,12 @@ static const struct v4l2_pix_format sif_mode[] = { }; static const __u8 pac207_sensor_init[][8] = { - {0x10, 0x12, 0x0d, 0x12, 0x0c, 0x01, 0x29, 0xf0}, - {0x00, 0x64, 0x64, 0x64, 0x04, 0x10, 0xf0, 0x30}, + {0x10, 0x12, 0x0d, 0x12, 0x0c, 0x01, 0x29, 0x84}, + {0x49, 0x64, 0x64, 0x64, 0x04, 0x10, 0xf0, 0x30}, {0x00, 0x00, 0x00, 0x70, 0xa0, 0xf8, 0x00, 0x00}, - {0x00, 0x00, 0x32, 0x00, 0x96, 0x00, 0xa2, 0x02}, {0x32, 0x00, 0x96, 0x00, 0xA2, 0x02, 0xaf, 0x00}, }; - /* 48 reg_72 Rate Control end BalSize_4a =0x36 */ -static const __u8 PacReg72[] = { 0x00, 0x00, 0x36, 0x00 }; - static int pac207_write_regs(struct gspca_dev *gspca_dev, u16 index, const u8 *buffer, u16 length) { @@ -274,7 +262,6 @@ static int sd_init(struct gspca_dev *gspca_dev) * Bit_1=LED, * Bit_2=Compression test mode enable */ pac207_write_reg(gspca_dev, 0x0f, 0x00); /* Power Control */ - pac207_write_reg(gspca_dev, 0x11, 0x30); /* Analog Bias */ return 0; } @@ -289,15 +276,13 @@ static int sd_start(struct gspca_dev *gspca_dev) pac207_write_regs(gspca_dev, 0x0002, pac207_sensor_init[0], 8); pac207_write_regs(gspca_dev, 0x000a, pac207_sensor_init[1], 8); pac207_write_regs(gspca_dev, 0x0012, pac207_sensor_init[2], 8); - pac207_write_regs(gspca_dev, 0x0040, pac207_sensor_init[3], 8); - pac207_write_regs(gspca_dev, 0x0042, pac207_sensor_init[4], 8); - pac207_write_regs(gspca_dev, 0x0048, PacReg72, 4); + pac207_write_regs(gspca_dev, 0x0042, pac207_sensor_init[3], 8); /* Compression Balance */ if (gspca_dev->width == 176) pac207_write_reg(gspca_dev, 0x4a, 0xff); else - pac207_write_reg(gspca_dev, 0x4a, 0x88); + pac207_write_reg(gspca_dev, 0x4a, 0x30); pac207_write_reg(gspca_dev, 0x4b, 0x00); /* Sram test value */ pac207_write_reg(gspca_dev, 0x08, sd->brightness); @@ -346,7 +331,7 @@ static void pac207_do_auto_gain(struct gspca_dev *gspca_dev) if (sd->autogain_ignore_frames > 0) sd->autogain_ignore_frames--; else if (gspca_auto_gain_n_exposure(gspca_dev, avg_lum, - 100 + sd->brightness / 2, PAC207_AUTOGAIN_DEADZONE, + 100, PAC207_AUTOGAIN_DEADZONE, PAC207_GAIN_KNEE, PAC207_EXPOSURE_KNEE)) sd->autogain_ignore_frames = PAC_AUTOGAIN_IGNORE_FRAMES; } |