diff options
| author | Sakari Ailus <sakari.ailus@linux.intel.com> | 2020-09-23 17:26:33 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2021-01-12 19:15:15 +0300 |
| commit | 7eb5a7e1e7b6cf7153beeba608f5a73d1e912b77 (patch) | |
| tree | 3bc0d5d3e58292012f1692fd1acbc8cf081197a2 /drivers/media/i2c | |
| parent | 8fe0267dc9685385325e28e0e9167446c71f7153 (diff) | |
| download | linux-7eb5a7e1e7b6cf7153beeba608f5a73d1e912b77.tar.xz | |
media: ccs: Add digital gain support
CCS supports global (all-component) digital gain. Add support for it.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'drivers/media/i2c')
| -rw-r--r-- | drivers/media/i2c/ccs/ccs-core.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/drivers/media/i2c/ccs/ccs-core.c b/drivers/media/i2c/ccs/ccs-core.c index b39ae5f8446b..f1fecc72e247 100644 --- a/drivers/media/i2c/ccs/ccs-core.c +++ b/drivers/media/i2c/ccs/ccs-core.c @@ -671,6 +671,11 @@ static int ccs_set_ctrl(struct v4l2_ctrl *ctrl) rval = ccs_write(sensor, ANALOG_GAIN_CODE_GLOBAL, ctrl->val); break; + + case V4L2_CID_DIGITAL_GAIN: + rval = ccs_write(sensor, DIGITAL_GAIN_GLOBAL, ctrl->val); + + break; case V4L2_CID_EXPOSURE: rval = ccs_write(sensor, COARSE_INTEGRATION_TIME, ctrl->val); @@ -739,7 +744,7 @@ static int ccs_init_controls(struct ccs_sensor *sensor) struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); int rval; - rval = v4l2_ctrl_handler_init(&sensor->pixel_array->ctrl_handler, 12); + rval = v4l2_ctrl_handler_init(&sensor->pixel_array->ctrl_handler, 13); if (rval) return rval; @@ -753,6 +758,16 @@ static int ccs_init_controls(struct ccs_sensor *sensor) max(CCS_LIM(sensor, ANALOG_GAIN_CODE_STEP), 1U), CCS_LIM(sensor, ANALOG_GAIN_CODE_MIN)); + if (CCS_LIM(sensor, DIGITAL_GAIN_CAPABILITY) == + CCS_DIGITAL_GAIN_CAPABILITY_GLOBAL) + v4l2_ctrl_new_std(&sensor->pixel_array->ctrl_handler, + &ccs_ctrl_ops, V4L2_CID_DIGITAL_GAIN, + CCS_LIM(sensor, DIGITAL_GAIN_MIN), + CCS_LIM(sensor, DIGITAL_GAIN_MAX), + max(CCS_LIM(sensor, DIGITAL_GAIN_STEP_SIZE), + 1U), + 0x100); + /* Exposure limits will be updated soon, use just something here. */ sensor->exposure = v4l2_ctrl_new_std( &sensor->pixel_array->ctrl_handler, &ccs_ctrl_ops, |