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Diffstat (limited to 'drivers/media/video/gspca/sonixb.c')
-rw-r--r--drivers/media/video/gspca/sonixb.c25
1 files changed, 17 insertions, 8 deletions
diff --git a/drivers/media/video/gspca/sonixb.c b/drivers/media/video/gspca/sonixb.c
index 6c69bc7778f..b3e4e0677b6 100644
--- a/drivers/media/video/gspca/sonixb.c
+++ b/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);
@@ -229,7 +227,7 @@ static struct ctrl sd_ctrls[] = {
},
};
-static struct v4l2_pix_format vga_mode[] = {
+static const struct v4l2_pix_format vga_mode[] = {
{160, 120, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
.bytesperline = 160,
.sizeimage = 160 * 120,
@@ -251,7 +249,7 @@ static struct v4l2_pix_format vga_mode[] = {
.colorspace = V4L2_COLORSPACE_SRGB,
.priv = 0},
};
-static struct v4l2_pix_format sif_mode[] = {
+static const struct v4l2_pix_format sif_mode[] = {
{160, 120, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
.bytesperline = 160,
.sizeimage = 160 * 120,
@@ -827,18 +825,29 @@ 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;
}
@@ -1226,8 +1235,8 @@ 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)},