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[media] gspca_sonixb: Fix OV7630 gain control

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The ov7630's gain is weird, at 32 the gain drops to the same level as at 16,
so skip 32-47 (of the 0-63 scale).

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans de Goede 2012-05-16 07:14:54 -03:00 committed by Mauro Carvalho Chehab
parent 9153ac3ba4
commit 8b3a19b1b3
1 changed files with 11 additions and 1 deletions
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12
drivers/media/video/gspca/sonixb.c
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@ -630,6 +630,13 @@ static void setgain(struct gspca_dev *gspca_dev)
case SENSOR_OV7630: {
__u8 i2c[] = {0xa0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10};
/*
* The ov7630's gain is weird, at 32 the gain drops to the
* same level as at 16, so skip 32-47 (of the 0-63 scale).
*/
if (sd->sensor == SENSOR_OV7630 && gain >= 32)
gain += 16;
i2c[1] = sensor_data[sd->sensor].sensor_addr;
i2c[3] = gain;
i2c_w(gspca_dev, i2c);
@ -1017,8 +1024,11 @@ static int sd_init_controls(struct gspca_dev *gspca_dev)
gspca_dev->gain = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
V4L2_CID_GAIN, 0, 31, 1, 15);
break;
case SENSOR_HV7131D:
case SENSOR_OV7630:
gspca_dev->gain = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
V4L2_CID_GAIN, 0, 47, 1, 31);
break;
case SENSOR_HV7131D:
gspca_dev->gain = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
V4L2_CID_GAIN, 0, 63, 1, 31);
break;