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V4L/DVB (11521): gspca - m5602-ov9650: Add auto exposure ctrl 

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 03:57:57 -03:00 committed by Mauro Carvalho Chehab
parent e8a574052e
commit 9ae1657797
1 changed files with 54 additions and 3 deletions
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57
drivers/media/video/gspca/m5602/m5602_ov9650.c
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@ -36,6 +36,8 @@ static int ov9650_set_auto_white_balance(struct gspca_dev *gspca_dev,
__s32 val);
static int ov9650_get_auto_gain(struct gspca_dev *gspca_dev, __s32 *val);
static int ov9650_set_auto_gain(struct gspca_dev *gspca_dev, __s32 val);
static int ov9650_get_auto_exposure(struct gspca_dev *gspca_dev, __s32 *val);
static int ov9650_set_auto_exposure(struct gspca_dev *gspca_dev, __s32 val);
/* Vertically and horizontally flips the image if matched, needed for machines
where the sensor is mounted upside down */
@ -201,7 +203,22 @@ const static struct ctrl ov9650_ctrls[] = {
},
.set = ov9650_set_auto_gain,
.get = ov9650_get_auto_gain
},
#define AUTO_EXPOSURE_IDX 8
{
{
.id = V4L2_CID_EXPOSURE_AUTO,
.type = V4L2_CTRL_TYPE_BOOLEAN,
.name = "auto exposure",
.minimum = 0,
.maximum = 1,
.step = 1,
.default_value = 1
},
.set = ov9650_set_auto_exposure,
.get = ov9650_get_auto_exposure
}
};
static struct v4l2_pix_format ov9650_modes[] = {
@ -356,13 +373,18 @@ int ov9650_init(struct sd *sd)
if (err < 0)
return err;
err = ov9650_set_auto_exposure(&sd->gspca_dev,
sensor_settings[AUTO_EXPOSURE_IDX]);
if (err < 0)
return err;
err = ov9650_set_auto_white_balance(&sd->gspca_dev,
sensor_settings[AUTO_WHITE_BALANCE_IDX]);
if (err < 0)
return err;
err = ov9650_set_auto_gain(&sd->gspca_dev,
sensor_settings[AUTO_GAIN_CTRL_IDX]);
sensor_settings[AUTO_GAIN_CTRL_IDX]);
return err;
}
@ -699,6 +721,36 @@ static int ov9650_set_vflip(struct gspca_dev *gspca_dev, __s32 val)
return err;
}
static int ov9650_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, "Read auto exposure control %d", *val);
return 0;
}
static int ov9650_set_auto_exposure(struct gspca_dev *gspca_dev,
__s32 val)
{
int err;
u8 i2c_data;
struct sd *sd = (struct sd *) gspca_dev;
s32 *sensor_settings = sd->sensor_priv;
PDEBUG(D_V4L2, "Set auto exposure control to %d", val);
sensor_settings[AUTO_EXPOSURE_IDX] = val;
err = m5602_read_sensor(sd, OV9650_COM8, &i2c_data, 1);
if (err < 0)
return err;
i2c_data = ((i2c_data & 0xfe) | ((val & 0x01) << 0));
return m5602_write_sensor(sd, OV9650_COM8, &i2c_data, 1);
}
static int ov9650_get_auto_white_balance(struct gspca_dev *gspca_dev,
__s32 *val)
{
@ -755,9 +807,8 @@ static int ov9650_set_auto_gain(struct gspca_dev *gspca_dev, __s32 val)
return err;
i2c_data = ((i2c_data & 0xfb) | ((val & 0x01) << 2));
err = m5602_write_sensor(sd, OV9650_COM8, &i2c_data, 1);
return err;
return m5602_write_sensor(sd, OV9650_COM8, &i2c_data, 1);
}
static void ov9650_dump_registers(struct sd *sd)