forked from Minki/linux
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>
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b933d585ba
commit
12e4ed7d5e
drivers/media/video/gspca/m5602
@ -28,7 +28,8 @@ static int mt9m111_set_auto_white_balance(struct gspca_dev *gspca_dev,
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__s32 val);
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static int mt9m111_get_auto_white_balance(struct gspca_dev *gspca_dev,
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__s32 *val);
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static int mt9m111_get_green_balance(struct gspca_dev *gspca_dev, __s32 *val);
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static int mt9m111_set_green_balance(struct gspca_dev *gspca_dev, __s32 val);
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static struct v4l2_pix_format mt9m111_modes[] = {
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{
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@ -100,7 +101,23 @@ const static struct ctrl mt9m111_ctrls[] = {
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},
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.set = mt9m111_set_auto_white_balance,
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.get = mt9m111_get_auto_white_balance
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}
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},
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#define GREEN_BALANCE_IDX 4
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{
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{
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.id = M5602_V4L2_CID_GREEN_BALANCE,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "green balance",
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.minimum = 0x00,
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.maximum = 0x7ff,
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.step = 0x1,
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.default_value = MT9M111_GREEN_GAIN_DEFAULT,
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.flags = V4L2_CTRL_FLAG_SLIDER
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},
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.set = mt9m111_set_green_balance,
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.get = mt9m111_get_green_balance
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},
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};
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static void mt9m111_dump_registers(struct sd *sd);
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@ -197,9 +214,12 @@ int mt9m111_init(struct sd *sd)
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if (err < 0)
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return err;
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err = mt9m111_set_gain(&sd->gspca_dev, sensor_settings[GAIN_IDX]);
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err = mt9m111_set_green_balance(&sd->gspca_dev,
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sensor_settings[GREEN_BALANCE_IDX]);
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if (err < 0)
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return err;
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return err;
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return mt9m111_set_gain(&sd->gspca_dev, sensor_settings[GAIN_IDX]);
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}
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void mt9m111_disconnect(struct sd *sd)
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@ -364,6 +384,38 @@ static int mt9m111_set_gain(struct gspca_dev *gspca_dev, __s32 val)
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return err;
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}
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static int mt9m111_set_green_balance(struct gspca_dev *gspca_dev, __s32 val)
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{
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int err;
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u8 data[2];
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struct sd *sd = (struct sd *) gspca_dev;
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s32 *sensor_settings = sd->sensor_priv;
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sensor_settings[GREEN_BALANCE_IDX] = val;
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data[0] = (val & 0xff);
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data[1] = (val & 0xff00) >> 8;
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PDEBUG(D_V4L2, "Set green balance %d", val);
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err = m5602_write_sensor(sd, MT9M111_SC_GREEN_1_GAIN,
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data, 2);
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if (err < 0)
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return err;
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return m5602_write_sensor(sd, MT9M111_SC_GREEN_2_GAIN,
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data, 2);
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}
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static int mt9m111_get_green_balance(struct gspca_dev *gspca_dev, __s32 *val)
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{
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struct sd *sd = (struct sd *) gspca_dev;
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s32 *sensor_settings = sd->sensor_priv;
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*val = sensor_settings[GREEN_BALANCE_IDX];
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PDEBUG(D_V4L2, "Read green balance %d", *val);
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return 0;
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}
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static void mt9m111_dump_registers(struct sd *sd)
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{
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u8 address, value[2] = {0x00, 0x00};
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@ -93,6 +93,7 @@
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#define INITIAL_MAX_GAIN 64
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#define DEFAULT_GAIN 283
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#define MT9M111_GREEN_GAIN_DEFAULT 0x20
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/*****************************************************************************/
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