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authorErik Andr?n <erik.andren@gmail.com>2009-01-13 14:10:44 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-06-16 18:20:32 -0300
commit12e4ed7d5e4a3145cb342be91423e92a24257212 (patch)
tree6474350bc2b92e43f0ba0dd5e618a1308b815b82
parentb933d585baf6f6432ca5dd3f6d415ffa145e2c25 (diff)
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>
-rw-r--r--drivers/media/video/gspca/m5602/m5602_mt9m111.c60
-rw-r--r--drivers/media/video/gspca/m5602/m5602_mt9m111.h1
2 files changed, 57 insertions, 4 deletions
diff --git a/drivers/media/video/gspca/m5602/m5602_mt9m111.c b/drivers/media/video/gspca/m5602/m5602_mt9m111.c
index 37a7fc82a53..c1ff4770e3a 100644
--- a/drivers/media/video/gspca/m5602/m5602_mt9m111.c
+++ b/drivers/media/video/gspca/m5602/m5602_mt9m111.c
@@ -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};
diff --git a/drivers/media/video/gspca/m5602/m5602_mt9m111.h b/drivers/media/video/gspca/m5602/m5602_mt9m111.h
index d0fe02ceabb..2d39e12d642 100644
--- a/drivers/media/video/gspca/m5602/m5602_mt9m111.h
+++ b/drivers/media/video/gspca/m5602/m5602_mt9m111.h
@@ -93,6 +93,7 @@
#define INITIAL_MAX_GAIN 64
#define DEFAULT_GAIN 283
+#define MT9M111_GREEN_GAIN_DEFAULT 0x20
/*****************************************************************************/