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V4L/DVB (8705): gspca: Adjust some control limits in spca561.

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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 2008-09-03 16:47:55 -03:00 committed by Mauro Carvalho Chehab
parent d698dc6b04
commit 3a1ea70503
1 changed files with 8 additions and 10 deletions
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18
drivers/media/video/gspca/spca561.c
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@ -38,9 +38,9 @@ struct sd {
#define CONTRAST_MAX 0x3fff #define CONTRAST_MAX 0x3fff
__u16 exposure; /* rev12a only */ __u16 exposure; /* rev12a only */
#define EXPOSURE_MIN 0x2001 #define EXPOSURE_MIN 0
#define EXPOSURE_DEF 0x20ae #define EXPOSURE_DEF 200
#define EXPOSURE_MAX 0x421d #define EXPOSURE_MAX 762
__u8 brightness; /* rev72a only */ __u8 brightness; /* rev72a only */
#define BRIGHTNESS_MIN 0 #define BRIGHTNESS_MIN 0
@ -48,7 +48,7 @@ struct sd {
#define BRIGHTNESS_MAX 63 #define BRIGHTNESS_MAX 63
__u8 white; /* rev12a only */ __u8 white; /* rev12a only */
#define WHITE_MIN 0 #define WHITE_MIN 1
#define WHITE_DEF 0x40 #define WHITE_DEF 0x40
#define WHITE_MAX 0x7f #define WHITE_MAX 0x7f
@ -608,10 +608,6 @@ static void setwhite(struct gspca_dev *gspca_dev)
__u8 reg8614, reg8616; __u8 reg8614, reg8616;
white = sd->white; white = sd->white;
if (sd->white == 0) {
PDEBUG(D_CONF, "Discarding null whiteness");
return;
}
/* try to emulate MS-win as possible */ /* try to emulate MS-win as possible */
reg8616 = 0x90 - white * 5 / 8; reg8616 = 0x90 - white * 5 / 8;
reg_w_val(gspca_dev->dev, 0x8616, reg8616); reg_w_val(gspca_dev->dev, 0x8616, reg8616);
@ -623,10 +619,12 @@ static void setwhite(struct gspca_dev *gspca_dev)
static void setexposure(struct gspca_dev *gspca_dev) static void setexposure(struct gspca_dev *gspca_dev)
{ {
struct sd *sd = (struct sd *) gspca_dev; struct sd *sd = (struct sd *) gspca_dev;
int expo;
__u8 data[2]; __u8 data[2];
data[0] = sd->exposure; expo = sd->exposure + 0x20a8; /* from test */
data[1] = sd->exposure >> 8; data[0] = expo;
data[1] = expo >> 8;
reg_w_buf(gspca_dev, 0x8309, data, 2); reg_w_buf(gspca_dev, 0x8309, data, 2);
} }