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V4L/DVB (11522): gspca - m5602-po1030: Add auto exposure control 

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 2009-01-13 13:43:46 -03:00 committed by Mauro Carvalho Chehab
parent 9ae1657797
commit dd9ce84a77
1 changed files with 56 additions and 2 deletions
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58
drivers/media/video/gspca/m5602/m5602_po1030.c
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@ -34,6 +34,10 @@ static int po1030_set_auto_white_balance(struct gspca_dev *gspca_dev,
__s32 val);
static int po1030_get_auto_white_balance(struct gspca_dev *gspca_dev,
__s32 *val);
static int po1030_set_auto_exposure(struct gspca_dev *gspca_dev,
__s32 val);
static int po1030_get_auto_exposure(struct gspca_dev *gspca_dev,
__s32 *val);
static struct v4l2_pix_format po1030_modes[] = {
{
@ -150,7 +154,22 @@ const static struct ctrl po1030_ctrls[] = {
},
.set = po1030_set_auto_white_balance,
.get = po1030_get_auto_white_balance
}
},
#define AUTO_EXPOSURE_IDX 7
{
{
.id = V4L2_CID_EXPOSURE_AUTO,
.type = V4L2_CTRL_TYPE_BOOLEAN,
.name = "auto exposure",
.minimum = 0,
.maximum = 1,
.step = 1,
.default_value = 0,
},
.set = po1030_set_auto_exposure,
.get = po1030_get_auto_exposure
},
};
static void po1030_dump_registers(struct sd *sd);
@ -270,7 +289,12 @@ int po1030_init(struct sd *sd)
return err;
err = po1030_set_auto_white_balance(&sd->gspca_dev,
sensor_settings[AUTO_WHITE_BALANCE_IDX]);
sensor_settings[AUTO_WHITE_BALANCE_IDX]);
if (err < 0)
return err;
err = po1030_set_auto_exposure(&sd->gspca_dev,
sensor_settings[AUTO_EXPOSURE_IDX]);
return err;
}
@ -501,11 +525,41 @@ static int po1030_set_auto_white_balance(struct gspca_dev *gspca_dev,
if (err < 0)
return err;
PDEBUG(D_V4L2, "Set auto white balance to %d", val);
i2c_data = (i2c_data & 0xfe) | (val & 0x01);
err = m5602_write_sensor(sd, PO1030_AUTOCTRL1, &i2c_data, 1);
return err;
}
static int po1030_get_auto_exposure(struct gspca_dev *gspca_dev,
__s32 *val)
{
struct sd *sd = (struct sd *) gspca_dev;
s32 *sensor_settings = sd->sensor_priv;
*val = sensor_settings[AUTO_EXPOSURE_IDX];
PDEBUG(D_V4L2, "Auto exposure is %d", *val);
return 0;
}
static int po1030_set_auto_exposure(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_EXPOSURE_IDX] = val;
err = m5602_read_sensor(sd, PO1030_AUTOCTRL1, &i2c_data, 1);
if (err < 0)
return err;
PDEBUG(D_V4L2, "Set auto exposure to %d", val);
i2c_data = (i2c_data & 0xfd) | ((val & 0x01) << 1);
return m5602_write_sensor(sd, PO1030_AUTOCTRL1, &i2c_data, 1);
}
void po1030_disconnect(struct sd *sd)
{
sd->sensor = NULL;