V4L/DVB (12986): gspca - m5602-ov7660: Add hflip, vflip controls

Signed-off-by: Erik Andrén <erik.andren@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 107 insertions, 2 deletions

diff --git a/drivers/media/video/gspca/m5602/m5602_ov7660.c b/drivers/media/video/gspca/m5602/m5602_ov7660.c
index f7c050f2552a..9b5e10532796 100644
--- a/drivers/media/video/gspca/m5602/m5602_ov7660.c
+++ b/drivers/media/video/gspca/m5602/m5602_ov7660.c
@@ -32,6 +32,10 @@ static int ov7660_get_auto_gain(struct gspca_dev *gspca_dev, __s32 *val);
 static int ov7660_set_auto_gain(struct gspca_dev *gspca_dev, __s32 val);
 static int ov7660_get_auto_exposure(struct gspca_dev *gspca_dev, __s32 *val);
 static int ov7660_set_auto_exposure(struct gspca_dev *gspca_dev, __s32 val);
+static int ov7660_get_hflip(struct gspca_dev *gspca_dev, __s32 *val);
+static int ov7660_set_hflip(struct gspca_dev *gspca_dev, __s32 val);
+static int ov7660_get_vflip(struct gspca_dev *gspca_dev, __s32 *val);
+static int ov7660_set_vflip(struct gspca_dev *gspca_dev, __s32 val);
 
 const static struct ctrl ov7660_ctrls[] = {
 #define GAIN_IDX 1
@@ -120,7 +124,36 @@ const static struct ctrl ov7660_ctrls[] = {
                 },
                 .set = ov7660_set_auto_exposure,
                 .get = ov7660_get_auto_exposure
-        }
+        },
+#define HFLIP_IDX 7
+        {
+                {
+                        .id             = V4L2_CID_HFLIP,
+                        .type           = V4L2_CTRL_TYPE_BOOLEAN,
+                        .name           = "horizontal flip",
+                        .minimum        = 0,
+                        .maximum        = 1,
+                        .step           = 1,
+                        .default_value  = 0
+                },
+                .set = ov7660_set_hflip,
+                .get = ov7660_get_hflip
+        },
+#define VFLIP_IDX 8
+        {
+                {
+                        .id             = V4L2_CID_VFLIP,
+                        .type           = V4L2_CTRL_TYPE_BOOLEAN,
+                        .name           = "vertical flip",
+                        .minimum        = 0,
+                        .maximum        = 1,
+                        .step           = 1,
+                        .default_value  = 0
+                },
+                .set = ov7660_set_vflip,
+                .get = ov7660_get_vflip
+        },
+
 };
 
 static struct v4l2_pix_format ov7660_modes[] = {
@@ -221,7 +254,7 @@ int ov7660_init(struct sd *sd)
                 } else {
                         data[0] = init2_ov7660[i][2];
                         err = m5602_write_sensor(sd,
-                                        init2_ov7660[i][1], data, 1);
+                                init2_ov7660[i][1], data, 1);
                 }
         }
 
@@ -254,6 +287,16 @@ int ov7660_init(struct sd *sd)
 
         err = ov7660_set_red_gain(&sd->gspca_dev,
                 sensor_settings[RED_BALANCE_IDX]);
+        if (err < 0)
+                return err;
+
+        err = ov7660_set_hflip(&sd->gspca_dev,
+                sensor_settings[HFLIP_IDX]);
+        if (err < 0)
+                return err;
+
+        err = ov7660_set_vflip(&sd->gspca_dev,
+                sensor_settings[VFLIP_IDX]);
 
         return err;
 }
@@ -441,6 +484,68 @@ static int ov7660_set_auto_exposure(struct gspca_dev *gspca_dev,
         return m5602_write_sensor(sd, OV7660_COM8, &i2c_data, 1);
 }
 
+static int ov7660_get_hflip(struct gspca_dev *gspca_dev, __s32 *val)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+        s32 *sensor_settings = sd->sensor_priv;
+
+        *val = sensor_settings[HFLIP_IDX];
+        PDEBUG(D_V4L2, "Read horizontal flip %d", *val);
+        return 0;
+}
+
+static int ov7660_set_hflip(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 horizontal flip to %d", val);
+
+        sensor_settings[HFLIP_IDX] = val;
+
+        i2c_data = ((val & 0x01) << 5) |
+                (sensor_settings[VFLIP_IDX] << 4);
+
+        err = m5602_write_sensor(sd, OV7660_MVFP, &i2c_data, 1);
+
+        return err;
+}
+
+static int ov7660_get_vflip(struct gspca_dev *gspca_dev, __s32 *val)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+        s32 *sensor_settings = sd->sensor_priv;
+
+        *val = sensor_settings[VFLIP_IDX];
+        PDEBUG(D_V4L2, "Read vertical flip %d", *val);
+
+        return 0;
+}
+
+static int ov7660_set_vflip(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 vertical flip to %d", val);
+        sensor_settings[VFLIP_IDX] = val;
+
+        i2c_data = ((val & 0x01) << 4) | (sensor_settings[VFLIP_IDX] << 5);
+        err = m5602_write_sensor(sd, OV7660_MVFP, &i2c_data, 1);
+        if (err < 0)
+                return err;
+
+        /* When vflip is toggled we need to readjust the bridge hsync/vsync */
+        if (gspca_dev->streaming)
+                err = ov7660_start(sd);
+
+        return err;
+}
+
 static void ov7660_dump_registers(struct sd *sd)
 {
         int address;