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-rw-r--r--drivers/media/video/gspca/pac207.c28
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;
}