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V4L/DVB (11459): gspca - m5602-po1030: Add auto white balancing control 

Add a po1030 auto white balancing control that's disabled by default

Signed-off-by: Erik Andr?n <erik.andren@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Erik Andr?n 2009-01-08 03:53:50 -03:00 committed by Mauro Carvalho Chehab
parent cb29e69197
commit 3b9ae658ec
2 changed files with 53 additions and 0 deletions
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51
drivers/media/video/gspca/m5602/m5602_po1030.c
View File

@ -119,6 +119,20 @@ const static struct ctrl po1030_ctrls[] = {
},
.set = po1030_set_vflip,
.get = po1030_get_vflip
},
#define AUTO_WHITE_BALANCE_IDX 6
{
{
.id = V4L2_CID_AUTO_WHITE_BALANCE,
.type = V4L2_CTRL_TYPE_BOOLEAN,
.name = "auto white balance",
.minimum = 0,
.maximum = 1,
.step = 1,
.default_value = 0,
},
.set = po1030_set_auto_white_balance,
.get = po1030_get_auto_white_balance
}
};
@ -238,6 +252,14 @@ int po1030_init(struct sd *sd)
err = po1030_set_red_balance(&sd->gspca_dev,
sensor_settings[BLUE_BALANCE_IDX]);
if (err < 0)
return err;
err = po1030_set_auto_white_balance(&sd->gspca_dev,
sensor_settings[AUTO_WHITE_BALANCE_IDX]);
if (err < 0)
return err;
return err;
}
@ -425,6 +447,35 @@ int po1030_set_blue_balance(struct gspca_dev *gspca_dev, __s32 val)
return err;
}
int po1030_get_auto_white_balance(struct gspca_dev *gspca_dev, __s32 *val)
{
struct sd *sd = (struct sd *) gspca_dev;
s32 *sensor_settings = sd->sensor_priv;
*val = sensor_settings[AUTO_WHITE_BALANCE_IDX];
PDEBUG(D_V4L2, "Auto white balancing is %d", *val);
return 0;
}
int po1030_set_auto_white_balance(struct gspca_dev *gspca_dev, __s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
s32 *sensor_settings = sd->sensor_priv;
u8 i2c_data;
int err;
sensor_settings[AUTO_WHITE_BALANCE_IDX] = val;
err = m5602_read_sensor(sd, PO1030_AUTOCTRL1, &i2c_data, 1);
if (err < 0)
return err;
i2c_data = (i2c_data & 0xfe) | (val & 0x01);
err = m5602_write_sensor(sd, PO1030_AUTOCTRL1, &i2c_data, 1);
return err;
}
void po1030_disconnect(struct sd *sd)
{
sd->sensor = NULL;

2
drivers/media/video/gspca/m5602/m5602_po1030.h
View File

@ -162,6 +162,8 @@ int po1030_get_hflip(struct gspca_dev *gspca_dev, __s32 *val);
int po1030_set_hflip(struct gspca_dev *gspca_dev, __s32 val);
int po1030_get_vflip(struct gspca_dev *gspca_dev, __s32 *val);
int po1030_set_vflip(struct gspca_dev *gspca_dev, __s32 val);
int po1030_set_auto_white_balance(struct gspca_dev *gspca_dev, __s32 val);
int po1030_get_auto_white_balance(struct gspca_dev *gspca_dev, __s32 *val);
static const struct m5602_sensor po1030 = {
.name = "PO1030",