diff options
| author | Hans de Goede <j.w.r.degoede@hhs.nl> | 2008-07-14 10:11:42 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2008-07-20 07:26:28 -0300 |
| commit | ad5ef80dd79851ea683e2d30ca4ebdc0c043a675 (patch) | |
| tree | 6e1891b60ea558d70a9c8d855919a06d1727bc8f /drivers | |
| parent | 4b972d29bbccc86877221164c7f39d52694d4a81 (diff) | |
| download | op-kernel-dev-ad5ef80dd79851ea683e2d30ca4ebdc0c043a675.zip op-kernel-dev-ad5ef80dd79851ea683e2d30ca4ebdc0c043a675.tar.gz | |
V4L/DVB (8354): gspca: Better gain for bridge sn9c10x - sensor ov6650.
sonixb: Better gain for ov6650.
Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/media/video/gspca/sonixb.c | 30 |
1 files changed, 13 insertions, 17 deletions
diff --git a/drivers/media/video/gspca/sonixb.c b/drivers/media/video/gspca/sonixb.c index cfa62ae..6c97c83 100644 --- a/drivers/media/video/gspca/sonixb.c +++ b/drivers/media/video/gspca/sonixb.c @@ -39,8 +39,8 @@ struct sd { sensor, so we use a per cam copy */ atomic_t avg_lum; - unsigned short gain; - unsigned short exposure; + unsigned char gain; + unsigned char exposure; unsigned char brightness; unsigned char autogain; unsigned char autogain_ignore_frames; @@ -73,7 +73,7 @@ struct sd { ignore atleast the 2 next frames for the new settings to come into effect before doing any other adjustments */ #define AUTOGAIN_IGNORE_FRAMES 3 -#define AUTOGAIN_DEADZONE 500 +#define AUTOGAIN_DEADZONE 1000 #define DESIRED_AVG_LUM 7000 /* V4L2 controls supported by the driver */ @@ -107,10 +107,10 @@ static struct ctrl sd_ctrls[] = { .type = V4L2_CTRL_TYPE_INTEGER, .name = "Gain", .minimum = 0, - .maximum = 511, + .maximum = 255, .step = 1, -#define GAIN_DEF 255 -#define GAIN_KNEE 400 +#define GAIN_DEF 127 +#define GAIN_KNEE 200 .default_value = GAIN_DEF, }, .set = sd_setgain, @@ -122,9 +122,9 @@ static struct ctrl sd_ctrls[] = { .type = V4L2_CTRL_TYPE_INTEGER, .name = "Exposure", #define EXPOSURE_DEF 0 -#define EXPOSURE_KNEE 353 /* 10 fps */ +#define EXPOSURE_KNEE 176 /* 10 fps */ .minimum = 0, - .maximum = 511, + .maximum = 255, .step = 1, .default_value = EXPOSURE_DEF, .flags = 0, @@ -563,11 +563,6 @@ err: static void setsensorgain(struct gspca_dev *gspca_dev) { struct sd *sd = (struct sd *) gspca_dev; - unsigned short gain; - - gain = (sd->gain + 1) >> 1; - if (gain > 255) - gain = 255; switch (sd->sensor) { @@ -575,14 +570,15 @@ static void setsensorgain(struct gspca_dev *gspca_dev) __u8 i2c[] = {0x30, 0x11, 0x02, 0x20, 0x70, 0x00, 0x00, 0x10}; - i2c[4] = 255 - gain; + i2c[4] = 255 - sd->gain; if (i2c_w(gspca_dev, i2c) < 0) goto err; break; } case SENSOR_OV6650: { __u8 i2c[] = {0xa0, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10}; - i2c[3] = gain; + + i2c[3] = sd->gain >> 3; if (i2c_w(gspca_dev, i2c) < 0) goto err; break; @@ -599,7 +595,7 @@ static void setgain(struct gspca_dev *gspca_dev) __u8 gain; __u8 rgb_value; - gain = sd->gain >> 5; + gain = sd->gain >> 4; /* red and blue gain */ rgb_value = gain << 4 | gain; @@ -616,7 +612,7 @@ static void setexposure(struct gspca_dev *gspca_dev) { struct sd *sd = (struct sd *) gspca_dev; /* translate 0 - 255 to a number of fps in a 30 - 1 scale */ - int fps = 30 - sd->exposure * 29 / 511; + int fps = 30 - sd->exposure * 29 / 255; switch (sd->sensor) { case SENSOR_TAS5110: { |
