From c6b914617911d634f5e78f0ff510c90db91c3717 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Erik=20Andr=C3=A9n?= <erik.andren@gmail.com>
Date: Sat, 20 Jun 2009 08:01:27 -0300
Subject: [PATCH] --- yaml --- r: 164179 b: refs/heads/master c:
 f1f59fe60e38c4c56b8acba9690cd08d86d2ac0e h: refs/heads/master i:   164177:
 8e09348fadbfc32521ec2b609e1d3d1e7ed6e5a4   164175:
 865e96422e45969074b5a365645dcd51b7bc2082 v: v3

---
 [refs]                                        |  2 +-
 .../media/video/gspca/m5602/m5602_ov7660.c    | 54 +++++++++++++++++++
 2 files changed, 55 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index cc82456b041b..534fed58d383 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: a94e2f2cb91678f106fb31e6fa58b7af451a42e9
+refs/heads/master: f1f59fe60e38c4c56b8acba9690cd08d86d2ac0e
diff --git a/trunk/drivers/media/video/gspca/m5602/m5602_ov7660.c b/trunk/drivers/media/video/gspca/m5602/m5602_ov7660.c
index 9d0cf2ccd1fe..00f8365db1a1 100644
--- a/trunk/drivers/media/video/gspca/m5602/m5602_ov7660.c
+++ b/trunk/drivers/media/video/gspca/m5602/m5602_ov7660.c
@@ -24,6 +24,11 @@ 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);
 static int ov7660_get_red_gain(struct gspca_dev *gspca_dev, __s32 *val);
 static int ov7660_set_red_gain(struct gspca_dev *gspca_dev, __s32 val);
+static int ov7660_get_auto_white_balance(struct gspca_dev *gspca_dev,
+					 __s32 *val);
+static int ov7660_set_auto_white_balance(struct gspca_dev *gspca_dev,
+					 __s32 val);
+
 
 const static struct ctrl ov7660_ctrls[] = {
 #define GAIN_IDX 1
@@ -71,6 +76,21 @@ const static struct ctrl ov7660_ctrls[] = {
 		.set = ov7660_set_red_gain,
 		.get = ov7660_get_red_gain
 	},
+#define AUTO_WHITE_BALANCE_IDX 4
+	{
+		{
+			.id 		= V4L2_CID_AUTO_WHITE_BALANCE,
+			.type 		= V4L2_CTRL_TYPE_BOOLEAN,
+			.name 		= "auto white balance",
+			.minimum 	= 0,
+			.maximum 	= 1,
+			.step 		= 1,
+			.default_value 	= 1
+		},
+		.set = ov7660_set_auto_white_balance,
+		.get = ov7660_get_auto_white_balance
+	},
+
 };
 
 static struct v4l2_pix_format ov7660_modes[] = {
@@ -182,6 +202,9 @@ int ov7660_init(struct sd *sd)
 	if (err < 0)
 		return err;
 
+	err = ov7660_set_auto_white_balance(&sd->gspca_dev,
+		sensor_settings[AUTO_WHITE_BALANCE_IDX]);
+
 	return err;
 }
 
@@ -278,6 +301,37 @@ static int ov7660_set_red_gain(struct gspca_dev *gspca_dev, __s32 val)
 	return err;
 }
 
+static int ov7660_get_auto_white_balance(struct gspca_dev *gspca_dev,
+					 __s32 *val)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+	s32 *sensor_settings = sd->sensor_priv;
+
+	*val = sensor_settings[AUTO_WHITE_BALANCE_IDX];
+	return 0;
+}
+
+static int ov7660_set_auto_white_balance(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 white balance to %d", val);
+
+	sensor_settings[AUTO_WHITE_BALANCE_IDX] = val;
+	err = m5602_read_sensor(sd, OV7660_COM8, &i2c_data, 1);
+	if (err < 0)
+		return err;
+
+	i2c_data = ((i2c_data & 0xfd) | ((val & 0x01) << 1));
+	err = m5602_write_sensor(sd, OV7660_COM8, &i2c_data, 1);
+
+	return err;
+}
+
 static void ov7660_dump_registers(struct sd *sd)
 {
 	int address;