diff options
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/video/gspca/pac207.c | 28 |
1 files changed, 10 insertions, 18 deletions
diff --git a/drivers/media/video/gspca/pac207.c b/drivers/media/video/gspca/pac207.c index f20d21b..9665943 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 @@ -166,8 +158,8 @@ 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}, {0x32, 0x00, 0x96, 0x00, 0xA2, 0x02, 0xaf, 0x00}, }; @@ -290,7 +282,7 @@ static int sd_start(struct gspca_dev *gspca_dev) 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); @@ -339,7 +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; } |