redonkable/alistair23-linux
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V4L/DVB (10787): gspca - mars: Bad webcam register values tied to saturation.

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Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Jean-Francois Moine 2009-02-28 08:09:24 -03:00 committed by Mauro Carvalho Chehab
parent 7434ca4343
commit 253bae5748
1 changed files with 13 additions and 10 deletions
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23
drivers/media/video/gspca/mars.c
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@ -69,10 +69,10 @@ static struct ctrl sd_ctrls[] = {
.id = V4L2_CID_SATURATION,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Color",
.minimum = 0,
.maximum = 220,
.minimum = 1,
.maximum = 255,
.step = 1,
#define COLOR_DEF 190
#define COLOR_DEF 200
.default_value = COLOR_DEF,
},
.set = sd_setcolors,
@ -191,7 +191,7 @@ static int sd_start(struct gspca_dev *gspca_dev)
struct sd *sd = (struct sd *) gspca_dev;
int err_code;
u8 *data;
int i, val;
int i;
data = gspca_dev->usb_buf;
@ -247,9 +247,11 @@ static int sd_start(struct gspca_dev *gspca_dev)
data[0] = 0x5e; /* address */
data[1] = 0; /* reg 94, Y Gain (auto) */
/*jfm: from win trace*/
val = sd->colors * 0x40 + 0x400;
data[2] = val; /* reg 0x5f/0x60 (LE) = saturation */
data[3] = val >> 8;
/* reg 0x5f/0x60 (LE) = saturation */
/* h (60): xxxx x100
* l (5f): xxxx x000 */
data[2] = sd->colors << 3;
data[3] = ((sd->colors >> 2) & 0xf8) | 0x04;
data[4] = sd->brightness; /* reg 0x61 = brightness */
data[5] = 0x00;
@ -365,10 +367,11 @@ static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val)
sd->colors = val;
if (gspca_dev->streaming) {
val = val * 0x40 + 0x400;
/* see sd_start */
gspca_dev->usb_buf[0] = 0x5f;
gspca_dev->usb_buf[1] = val;
gspca_dev->usb_buf[2] = val >> 8;
gspca_dev->usb_buf[1] = sd->colors << 3;
gspca_dev->usb_buf[2] = ((sd->colors >> 2) & 0xf8) | 0x04;
reg_w(gspca_dev, 3);
}
return 0;