diff options
Diffstat (limited to 'linux/drivers/media/video/gspca/sonixb.c')
| -rw-r--r-- | linux/drivers/media/video/gspca/sonixb.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/linux/drivers/media/video/gspca/sonixb.c b/linux/drivers/media/video/gspca/sonixb.c index 4bae911da..5ca8ab780 100644 --- a/linux/drivers/media/video/gspca/sonixb.c +++ b/linux/drivers/media/video/gspca/sonixb.c @@ -132,8 +132,6 @@ struct sensor_data { 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 1000 -#define DESIRED_AVG_LUM 7000 /* V4L2 controls supported by the driver */ static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val); @@ -857,18 +855,29 @@ static void setfreq(struct gspca_dev *gspca_dev) static void do_autogain(struct gspca_dev *gspca_dev) { + int deadzone, desired_avg_lum; struct sd *sd = (struct sd *) gspca_dev; int avg_lum = atomic_read(&sd->avg_lum); if (avg_lum == -1) return; + /* SIF / VGA sensors have a different autoexposure area and thus + different avg_lum values for the same picture brightness */ + if (sensor_data[sd->sensor].flags & F_SIF) { + deadzone = 1000; + desired_avg_lum = 7000; + } else { + deadzone = 3000; + desired_avg_lum = 23000; + } + if (sd->autogain_ignore_frames > 0) sd->autogain_ignore_frames--; else if (gspca_auto_gain_n_exposure(gspca_dev, avg_lum, - sd->brightness * DESIRED_AVG_LUM / 127, - AUTOGAIN_DEADZONE, GAIN_KNEE, EXPOSURE_KNEE)) { - PDEBUG(D_FRAM, "autogain: gain changed: gain: %d expo: %d\n", + sd->brightness * desired_avg_lum / 127, + deadzone, GAIN_KNEE, EXPOSURE_KNEE)) { + PDEBUG(D_FRAM, "autogain: gain changed: gain: %d expo: %d", (int)sd->gain, (int)sd->exposure); sd->autogain_ignore_frames = AUTOGAIN_IGNORE_FRAMES; } @@ -1256,8 +1265,8 @@ static __devinitdata struct usb_device_id device_table[] = { {USB_DEVICE(0x0c45, 0x6025), SB(TAS5130CXX, 102)}, {USB_DEVICE(0x0c45, 0x6028), SB(PAS202, 102)}, {USB_DEVICE(0x0c45, 0x6029), SB(PAS106, 102)}, - {USB_DEVICE(0x0c45, 0x602c), SB(OV7630, 102)}, #endif + {USB_DEVICE(0x0c45, 0x602c), SB(OV7630, 102)}, {USB_DEVICE(0x0c45, 0x602d), SB(HV7131R, 102)}, #if !defined CONFIG_USB_SN9C102 && !defined CONFIG_USB_SN9C102_MODULE {USB_DEVICE(0x0c45, 0x602e), SB(OV7630, 102)}, |