diff options
| author | Stanimir Varbanov <svarbanov@mm-sol.com> | 2011-12-16 13:46:22 +0800 |
|---|---|---|
| committer | Andy Green <andy.green@linaro.org> | 2011-12-16 13:46:22 +0800 |
| commit | b8d6f76a62da48ca5505099d10787e5fb58592d5 (patch) | |
| tree | e90fb7e744ba88ff3fcb3c445fcf8230915cb29d | |
| parent | 3d58de16f65d99636c973eb93dd69e693ca2fa7a (diff) | |
v4l: Introduce sensor operation for getting interface configuration
Introduce g_interface_parms sensor operation for getting sensor
interface parameters. These parameters are needed from the host side
to determine it's own configuration.
Signed-off-by: Stanimir Varbanov <svarbanov@mm-sol.com>
| -rw-r--r-- | include/media/v4l2-subdev.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h index 257da1a30f6..ea4f6ac64c4 100644 --- a/include/media/v4l2-subdev.h +++ b/include/media/v4l2-subdev.h @@ -361,6 +361,42 @@ struct v4l2_subdev_vbi_ops { int (*s_sliced_fmt)(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_format *fmt); }; +/* Which interface the sensor use to provide it's image data */ +enum v4l2_subdev_sensor_iface { + V4L2_SUBDEV_SENSOR_PARALLEL, + V4L2_SUBDEV_SENSOR_SERIAL, +}; + +/* Each interface could use the following modes */ +/* Image sensor provides horizontal and vertical sync signals */ +#define V4L2_SUBDEV_SENSOR_MODE_PARALLEL_SYNC 0 +/* BT.656 interface. Embedded sync */ +#define V4L2_SUBDEV_SENSOR_MODE_PARALLEL_ITU 1 +/* MIPI CSI1 */ +#define V4L2_SUBDEV_SENSOR_MODE_SERIAL_CSI1 2 +/* MIPI CSI2 */ +#define V4L2_SUBDEV_SENSOR_MODE_SERIAL_CSI2 3 + +struct v4l2_subdev_sensor_serial_parms { + unsigned char lanes; /* number of lanes used */ + unsigned char channel; /* virtual channel */ + unsigned int phy_rate; /* output rate at CSI phy in bps */ + unsigned int pix_clk; /* pixel clock in Hz */ +}; + +struct v4l2_subdev_sensor_parallel_parms { + unsigned int pix_clk; /* pixel clock in Hz */ +}; + +struct v4l2_subdev_sensor_interface_parms { + enum v4l2_subdev_sensor_iface if_type; + unsigned int if_mode; + union { + struct v4l2_subdev_sensor_serial_parms serial; + struct v4l2_subdev_sensor_parallel_parms parallel; + } parms; +}; + /** * struct v4l2_subdev_sensor_ops - v4l2-subdev sensor operations * @g_skip_top_lines: number of lines at the top of the image to be skipped. @@ -370,10 +406,16 @@ struct v4l2_subdev_vbi_ops { * @g_skip_frames: number of frames to skip at stream start. This is needed for * buggy sensors that generate faulty frames when they are * turned on. + * @g_interface_parms: get sensor interface parameters. The sensor subdev should + * fill this structure with current interface params. These + * interface parameters are needed on host side to configure + * it's own hardware receivers. */ struct v4l2_subdev_sensor_ops { int (*g_skip_top_lines)(struct v4l2_subdev *sd, u32 *lines); int (*g_skip_frames)(struct v4l2_subdev *sd, u32 *frames); + int (*g_interface_parms)(struct v4l2_subdev *sd, + struct v4l2_subdev_sensor_interface_parms *parms); }; /* |