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V4L/DVB (11524): gspca - m5602-mt9m111: Add green balance ctrl 

Signed-off-by: Erik Andr?n <erik.andren@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
hifive-unleashed-5.1
Erik Andr?n 2009-01-13 14:10:44 -03:00 committed by Mauro Carvalho Chehab
parent b933d585ba
commit 12e4ed7d5e
2 changed files with 57 additions and 4 deletions
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60
drivers/media/video/gspca/m5602/m5602_mt9m111.c
View File

@ -28,7 +28,8 @@ static int mt9m111_set_auto_white_balance(struct gspca_dev *gspca_dev,
__s32 val);
static int mt9m111_get_auto_white_balance(struct gspca_dev *gspca_dev,
__s32 *val);
static int mt9m111_get_green_balance(struct gspca_dev *gspca_dev, __s32 *val);
static int mt9m111_set_green_balance(struct gspca_dev *gspca_dev, __s32 val);
static struct v4l2_pix_format mt9m111_modes[] = {
{
@ -100,7 +101,23 @@ const static struct ctrl mt9m111_ctrls[] = {
},
.set = mt9m111_set_auto_white_balance,
.get = mt9m111_get_auto_white_balance
}
},
#define GREEN_BALANCE_IDX 4
{
{
.id = M5602_V4L2_CID_GREEN_BALANCE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "green balance",
.minimum = 0x00,
.maximum = 0x7ff,
.step = 0x1,
.default_value = MT9M111_GREEN_GAIN_DEFAULT,
.flags = V4L2_CTRL_FLAG_SLIDER
},
.set = mt9m111_set_green_balance,
.get = mt9m111_get_green_balance
},
};
static void mt9m111_dump_registers(struct sd *sd);
@ -197,9 +214,12 @@ int mt9m111_init(struct sd *sd)
if (err < 0)
return err;
err = mt9m111_set_gain(&sd->gspca_dev, sensor_settings[GAIN_IDX]);
err = mt9m111_set_green_balance(&sd->gspca_dev,
sensor_settings[GREEN_BALANCE_IDX]);
if (err < 0)
return err;
return err;
return mt9m111_set_gain(&sd->gspca_dev, sensor_settings[GAIN_IDX]);
}
void mt9m111_disconnect(struct sd *sd)
@ -364,6 +384,38 @@ static int mt9m111_set_gain(struct gspca_dev *gspca_dev, __s32 val)
return err;
}
static int mt9m111_set_green_balance(struct gspca_dev *gspca_dev, __s32 val)
{
int err;
u8 data[2];
struct sd *sd = (struct sd *) gspca_dev;
s32 *sensor_settings = sd->sensor_priv;
sensor_settings[GREEN_BALANCE_IDX] = val;
data[0] = (val & 0xff);
data[1] = (val & 0xff00) >> 8;
PDEBUG(D_V4L2, "Set green balance %d", val);
err = m5602_write_sensor(sd, MT9M111_SC_GREEN_1_GAIN,
data, 2);
if (err < 0)
return err;
return m5602_write_sensor(sd, MT9M111_SC_GREEN_2_GAIN,
data, 2);
}
static int mt9m111_get_green_balance(struct gspca_dev *gspca_dev, __s32 *val)
{
struct sd *sd = (struct sd *) gspca_dev;
s32 *sensor_settings = sd->sensor_priv;
*val = sensor_settings[GREEN_BALANCE_IDX];
PDEBUG(D_V4L2, "Read green balance %d", *val);
return 0;
}
static void mt9m111_dump_registers(struct sd *sd)
{
u8 address, value[2] = {0x00, 0x00};

1
drivers/media/video/gspca/m5602/m5602_mt9m111.h
View File

@ -93,6 +93,7 @@
#define INITIAL_MAX_GAIN 64
#define DEFAULT_GAIN 283
#define MT9M111_GREEN_GAIN_DEFAULT 0x20
/*****************************************************************************/