Commit cbd1f7fb authored by Erik Andrén's avatar Erik Andrén Committed by Mauro Carvalho Chehab

V4L/DVB (12977): gspca - m5602-ov7660: Create blue gain control

Hook up a blue gain v4l2 controller
Signed-off-by: default avatarErik Andrén <erik.andren@gmail.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent b8298e7e
......@@ -20,6 +20,8 @@
static int ov7660_get_gain(struct gspca_dev *gspca_dev, __s32 *val);
static int ov7660_set_gain(struct gspca_dev *gspca_dev, __s32 val);
static int ov7660_get_blue_gain(struct gspca_dev *gspca_dev, __s32 *val);
static int ov7660_set_blue_gain(struct gspca_dev *gspca_dev, __s32 val);
const static struct ctrl ov7660_ctrls[] = {
#define GAIN_IDX 1
......@@ -37,6 +39,22 @@ const static struct ctrl ov7660_ctrls[] = {
.set = ov7660_set_gain,
.get = ov7660_get_gain
},
#define BLUE_BALANCE_IDX 2
{
{
.id = V4L2_CID_BLUE_BALANCE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "blue balance",
.minimum = 0x00,
.maximum = 0x7f,
.step = 0x1,
.default_value = OV7660_DEFAULT_BLUE_GAIN,
.flags = V4L2_CTRL_FLAG_SLIDER
},
.set = ov7660_set_blue_gain,
.get = ov7660_get_blue_gain
},
};
static struct v4l2_pix_format ov7660_modes[] = {
......@@ -194,6 +212,31 @@ static int ov7660_set_gain(struct gspca_dev *gspca_dev, __s32 val)
return err;
}
static int ov7660_get_blue_gain(struct gspca_dev *gspca_dev, __s32 *val)
{
struct sd *sd = (struct sd *) gspca_dev;
s32 *sensor_settings = sd->sensor_priv;
*val = sensor_settings[BLUE_BALANCE_IDX];
PDEBUG(D_V4L2, "Read blue balance %d", *val);
return 0;
}
static int ov7660_set_blue_gain(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, "Setting blue balance to %d", val);
sensor_settings[BLUE_BALANCE_IDX] = val;
err = m5602_write_sensor(sd, OV7660_BLUE_GAIN, &i2c_data, 1);
return err;
}
static void ov7660_dump_registers(struct sd *sd)
{
int address;
......
......@@ -199,8 +199,6 @@ static const unsigned char init_ov7660[][4] =
{SENSOR, OV7660_COM7, 0x80},
{SENSOR, OV7660_CLKRC, 0x80},
{SENSOR, OV7660_BLUE_GAIN, 0x80},
{SENSOR, OV7660_RED_GAIN, 0x80},
{SENSOR, OV7660_COM9, 0x4c},
{SENSOR, OV7660_OFON, 0x43},
{SENSOR, OV7660_COM12, 0x28},
......@@ -264,8 +262,6 @@ static const unsigned char init_ov7660[][4] =
{SENSOR, OV7660_OFON, 0x0c},
{SENSOR, OV7660_COM2, 0x11},
{SENSOR, OV7660_COM7, 0x05},
{SENSOR, OV7660_BLUE_GAIN, 0x80},
{SENSOR, OV7660_RED_GAIN, 0x80},
{BRIDGE, M5602_XB_GPIO_DIR, 0x01},
{BRIDGE, M5602_XB_GPIO_DAT, 0x04},
......
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