diff options
| author | Guennadi Liakhovetski <g.liakhovetski@gmx.de> | 2011-07-26 11:38:01 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-11-03 18:27:13 -0200 |
| commit | 32c69fcc785a2f8122c73d44ad160d9cfc4c9615 (patch) | |
| tree | c5a15bcfb69436d9da99369b1bdec17999f89849 /drivers/media/video/soc_camera.c | |
| parent | 7cd74ffb04e05c115ebe53a59f83a73e677a2c63 (diff) | |
[media] V4L: soc-camera: add helper functions for new bus configuration type
Add helper functions to process the new media bus configuration type
similar to soc_camera_apply_sensor_flags() and
soc_camera_bus_param_compatible().
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/soc_camera.c')
| -rw-r--r-- | drivers/media/video/soc_camera.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/drivers/media/video/soc_camera.c b/drivers/media/video/soc_camera.c index 5bdfe7e16bc1..8b16152f52fe 100644 --- a/drivers/media/video/soc_camera.c +++ b/drivers/media/video/soc_camera.c @@ -108,6 +108,40 @@ const struct soc_camera_format_xlate *soc_camera_xlate_by_fourcc( EXPORT_SYMBOL(soc_camera_xlate_by_fourcc); /** + * soc_camera_apply_board_flags() - apply platform SOCAM_SENSOR_INVERT_* flags + * @icl: camera platform parameters + * @cfg: media bus configuration + * @return: resulting flags + */ +unsigned long soc_camera_apply_board_flags(struct soc_camera_link *icl, + const struct v4l2_mbus_config *cfg) +{ + unsigned long f, flags = cfg->flags; + + /* If only one of the two polarities is supported, switch to the opposite */ + if (icl->flags & SOCAM_SENSOR_INVERT_HSYNC) { + f = flags & (V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_HSYNC_ACTIVE_LOW); + if (f == V4L2_MBUS_HSYNC_ACTIVE_HIGH || f == V4L2_MBUS_HSYNC_ACTIVE_LOW) + flags ^= V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_HSYNC_ACTIVE_LOW; + } + + if (icl->flags & SOCAM_SENSOR_INVERT_VSYNC) { + f = flags & (V4L2_MBUS_VSYNC_ACTIVE_HIGH | V4L2_MBUS_VSYNC_ACTIVE_LOW); + if (f == V4L2_MBUS_VSYNC_ACTIVE_HIGH || f == V4L2_MBUS_VSYNC_ACTIVE_LOW) + flags ^= V4L2_MBUS_VSYNC_ACTIVE_HIGH | V4L2_MBUS_VSYNC_ACTIVE_LOW; + } + + if (icl->flags & SOCAM_SENSOR_INVERT_PCLK) { + f = flags & (V4L2_MBUS_PCLK_SAMPLE_RISING | V4L2_MBUS_PCLK_SAMPLE_FALLING); + if (f == V4L2_MBUS_PCLK_SAMPLE_RISING || f == V4L2_MBUS_PCLK_SAMPLE_FALLING) + flags ^= V4L2_MBUS_PCLK_SAMPLE_RISING | V4L2_MBUS_PCLK_SAMPLE_FALLING; + } + + return flags; +} +EXPORT_SYMBOL(soc_camera_apply_board_flags); + +/** * soc_camera_apply_sensor_flags() - apply platform SOCAM_SENSOR_INVERT_* flags * @icl: camera platform parameters * @flags: flags to be inverted according to platform configuration |