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| author | Erik Andrén <erik.andren@gmail.com> | 2009-06-20 18:58:41 +0200 |
|---|---|---|
| committer | Erik Andrén <erik.andren@gmail.com> | 2009-06-20 18:58:41 +0200 |
| commit | 66b7d86be8ceb5b99fda232e1f7e146e9b8f37fe (patch) | |
| tree | 5231804bd31b63d2f79d152b00bece42f9614848 /linux | |
| parent | da6d81648fe7b2b067d427befbca3dfe65c2f4c7 (diff) | |
| download | mediapointer-dvb-s2-66b7d86be8ceb5b99fda232e1f7e146e9b8f37fe.tar.gz mediapointer-dvb-s2-66b7d86be8ceb5b99fda232e1f7e146e9b8f37fe.tar.bz2 | |
gspca - m5602-ov7660: Add auto exposure ctrl
From: Erik Andrén <erik.andren@gmail.com>
Priority: normal
Signed-off-by: Erik Andrén <erik.andren@gmail.com>
Diffstat (limited to 'linux')
| -rw-r--r-- | linux/drivers/media/video/gspca/m5602/m5602_ov7660.c | 52 |
1 files changed, 51 insertions, 1 deletions
diff --git a/linux/drivers/media/video/gspca/m5602/m5602_ov7660.c b/linux/drivers/media/video/gspca/m5602/m5602_ov7660.c index 855c058d5..80c64caac 100644 --- a/linux/drivers/media/video/gspca/m5602/m5602_ov7660.c +++ b/linux/drivers/media/video/gspca/m5602/m5602_ov7660.c @@ -30,7 +30,8 @@ static int ov7660_set_auto_white_balance(struct gspca_dev *gspca_dev, __s32 val); 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); const static struct ctrl ov7660_ctrls[] = { #define GAIN_IDX 1 @@ -106,6 +107,20 @@ const static struct ctrl ov7660_ctrls[] = { .set = ov7660_set_auto_gain, .get = ov7660_get_auto_gain }, +#define AUTO_EXPOSURE_IDX 6 + { + { + .id = V4L2_CID_EXPOSURE_AUTO, + .type = V4L2_CTRL_TYPE_BOOLEAN, + .name = "auto exposure", + .minimum = 0, + .maximum = 1, + .step = 1, + .default_value = 1 + }, + .set = ov7660_set_auto_exposure, + .get = ov7660_get_auto_exposure + } }; static struct v4l2_pix_format ov7660_modes[] = { @@ -227,6 +242,11 @@ int ov7660_init(struct sd *sd) if (err < 0) return err; + err = ov7660_set_auto_exposure(&sd->gspca_dev, + sensor_settings[AUTO_EXPOSURE_IDX]); + if (err < 0) + return err; + err = ov7660_set_blue_gain(&sd->gspca_dev, sensor_settings[BLUE_BALANCE_IDX]); if (err < 0) @@ -391,6 +411,36 @@ static int ov7660_set_auto_gain(struct gspca_dev *gspca_dev, __s32 val) return m5602_write_sensor(sd, OV7660_COM8, &i2c_data, 1); } +static int ov7660_get_auto_exposure(struct gspca_dev *gspca_dev, __s32 *val) +{ + struct sd *sd = (struct sd *) gspca_dev; + s32 *sensor_settings = sd->sensor_priv; + + *val = sensor_settings[AUTO_EXPOSURE_IDX]; + PDEBUG(D_V4L2, "Read auto exposure control %d", *val); + return 0; +} + +static int ov7660_set_auto_exposure(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 exposure control to %d", val); + + sensor_settings[AUTO_EXPOSURE_IDX] = val; + err = m5602_read_sensor(sd, OV7660_COM8, &i2c_data, 1); + if (err < 0) + return err; + + i2c_data = ((i2c_data & 0xfe) | ((val & 0x01) << 0)); + + return m5602_write_sensor(sd, OV7660_COM8, &i2c_data, 1); +} + static void ov7660_dump_registers(struct sd *sd) { int address; |