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authorErik Andr?n <erik.andren@gmail.com>2009-01-13 13:43:46 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-06-16 18:20:31 -0300
commitdd9ce84a773f9c9919a3c59291e82ec0e8803ecc (patch)
tree5aef0741964f10547c6b38cc72be5b1ddf2ab47a /drivers
parent9ae165779720209d4c566c8102dce415a3c7f055 (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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/media/video/gspca/m5602/m5602_po1030.c58
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;