diff options
| author | Erik Andr?n <erik.andren@gmail.com> | 2009-01-13 13:43:46 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-06-16 18:20:31 -0300 |
| commit | dd9ce84a773f9c9919a3c59291e82ec0e8803ecc (patch) | |
| tree | 5aef0741964f10547c6b38cc72be5b1ddf2ab47a | |
| parent | 9ae165779720209d4c566c8102dce415a3c7f055 (diff) | |
V4L/DVB (11522): gspca - m5602-po1030: Add auto exposure control
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_po1030.c | 58 |
1 files changed, 56 insertions, 2 deletions
diff --git a/drivers/media/video/gspca/m5602/m5602_po1030.c b/drivers/media/video/gspca/m5602/m5602_po1030.c index 26ac619781c..e32d03a2cf9 100644 --- a/drivers/media/video/gspca/m5602/m5602_po1030.c +++ b/drivers/media/video/gspca/m5602/m5602_po1030.c @@ -34,6 +34,10 @@ static int po1030_set_auto_white_balance(struct gspca_dev *gspca_dev, __s32 val); static int po1030_get_auto_white_balance(struct gspca_dev *gspca_dev, __s32 *val); +static int po1030_set_auto_exposure(struct gspca_dev *gspca_dev, + __s32 val); +static int po1030_get_auto_exposure(struct gspca_dev *gspca_dev, + __s32 *val); static struct v4l2_pix_format po1030_modes[] = { { @@ -150,7 +154,22 @@ const static struct ctrl po1030_ctrls[] = { }, .set = po1030_set_auto_white_balance, .get = po1030_get_auto_white_balance - } + }, +#define AUTO_EXPOSURE_IDX 7 + { + { + .id = V4L2_CID_EXPOSURE_AUTO, + .type = V4L2_CTRL_TYPE_BOOLEAN, + .name = "auto exposure", + .minimum = 0, + .maximum = 1, + .step = 1, + .default_value = 0, + }, + .set = po1030_set_auto_exposure, + .get = po1030_get_auto_exposure + }, + }; static void po1030_dump_registers(struct sd *sd); @@ -270,7 +289,12 @@ int po1030_init(struct sd *sd) return err; err = po1030_set_auto_white_balance(&sd->gspca_dev, - sensor_settings[AUTO_WHITE_BALANCE_IDX]); + sensor_settings[AUTO_WHITE_BALANCE_IDX]); + if (err < 0) + return err; + + err = po1030_set_auto_exposure(&sd->gspca_dev, + sensor_settings[AUTO_EXPOSURE_IDX]); return err; } @@ -501,11 +525,41 @@ static int po1030_set_auto_white_balance(struct gspca_dev *gspca_dev, if (err < 0) return err; + PDEBUG(D_V4L2, "Set auto white balance to %d", val); i2c_data = (i2c_data & 0xfe) | (val & 0x01); err = m5602_write_sensor(sd, PO1030_AUTOCTRL1, &i2c_data, 1); return err; } +static int po1030_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, "Auto exposure is %d", *val); + return 0; +} + +static int po1030_set_auto_exposure(struct gspca_dev *gspca_dev, + __s32 val) +{ + struct sd *sd = (struct sd *) gspca_dev; + s32 *sensor_settings = sd->sensor_priv; + u8 i2c_data; + int err; + + sensor_settings[AUTO_EXPOSURE_IDX] = val; + err = m5602_read_sensor(sd, PO1030_AUTOCTRL1, &i2c_data, 1); + if (err < 0) + return err; + + PDEBUG(D_V4L2, "Set auto exposure to %d", val); + i2c_data = (i2c_data & 0xfd) | ((val & 0x01) << 1); + return m5602_write_sensor(sd, PO1030_AUTOCTRL1, &i2c_data, 1); +} + void po1030_disconnect(struct sd *sd) { sd->sensor = NULL; |