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drivers: media: add alternating exposure support

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- update ar0234 driver to support ar0234 sensor
  hardware provided support for capturing frames
  using alternating exposure time and analog gain
  settings through automatic context switching
- added new v4l2 control having control id
  TEGRA_CAMERA_CID_ALTERNATING_EXPOSURE for
  configuring alternating exposure settings
- other changes to support aforementioned changes

Bug 4064517
Jira L4T-4501

Change-Id: Id1d3d745345836436b16da1fd00cc97f2e3b5553
Signed-off-by: Shashank Kumar <shaskumar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2881141
(cherry picked from commit e973475525c9a7a99552282316e06126b8fff625)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2987067
Reviewed-by: Anubhav Rai <arai@nvidia.com>
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
Tested-by: Anubhav Rai <arai@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
This commit is contained in:
Shashank Kumar
2023-04-02 16:07:56 +00:00
committed by mobile promotions
parent 2bd1339e63
commit c56189df5d
6 changed files with 386 additions and 51 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
include/media/camera_common.h
View File

@@ -186,6 +186,8 @@ struct tegracam_ctrl_ops {
int (*set_exposure_short)(struct tegracam_device *tc_dev, s64 val);
int (*set_frame_rate)(struct tegracam_device *tc_dev, s64 val);
int (*set_group_hold)(struct tegracam_device *tc_dev, bool val);
int (*set_alternating_exposure)(struct tegracam_device *tc_dev,
struct alternating_exposure_cfg *val);
int (*fill_string_ctrl)(struct tegracam_device *tc_dev,
struct v4l2_ctrl *ctrl);
int (*fill_compound_ctrl)(struct tegracam_device *tc_dev,
@@ -353,6 +355,7 @@ const struct camera_common_colorfmt *camera_common_find_pixelfmt(
unsigned int pix_fmt);
/* common control layer init */
int tegracam_ctrl_synchronize_ctrls(struct tegracam_ctrl_handler *handler);
int tegracam_ctrl_set_overrides(struct tegracam_ctrl_handler *handler);
int tegracam_ctrl_handler_init(struct tegracam_ctrl_handler *handler);
int tegracam_init_ctrl_ranges(struct tegracam_ctrl_handler *handler);

13
include/media/tegra-v4l2-camera.h
View File

@@ -27,6 +27,7 @@
#define TEGRA_CAMERA_CID_FRAME_RATE (TEGRA_CAMERA_CID_BASE+11)
#define TEGRA_CAMERA_CID_EXPOSURE_SHORT (TEGRA_CAMERA_CID_BASE+12)
#define TEGRA_CAMERA_CID_STEREO_EEPROM (TEGRA_CAMERA_CID_BASE+13)
#define TEGRA_CAMERA_CID_ALTERNATING_EXPOSURE (TEGRA_CAMERA_CID_BASE+14)
#define TEGRA_CAMERA_CID_SENSOR_CONFIG (TEGRA_CAMERA_CID_BASE+50)
#define TEGRA_CAMERA_CID_SENSOR_MODE_BLOB (TEGRA_CAMERA_CID_BASE+51)
@@ -74,6 +75,7 @@
#define TEGRA_CAM_MAX_COMPOUND_CONTROLS 4
#define TEGRA_CAM_COMPOUND_CTRL_EEPROM_INDEX 0
#define TEGRA_CAM_COMPOUND_CTRL_ALT_EXP_INDEX 1
#define CSI_PHY_MODE_DPHY 0
#define CSI_PHY_MODE_CPHY 1
@@ -172,4 +174,15 @@ struct sensor_mode_properties {
(sizeof(struct sensor_blob) / sizeof(__u32))
#define SENSOR_CTRL_BLOB_SIZE \
(sizeof(struct sensor_blob) / sizeof(__u32))
struct alternating_exposure_cfg {
__u8 enable;
__s64 exp_time_0;
__s64 exp_time_1;
__s64 analog_gain_0;
__s64 analog_gain_1;
};
#define ALTERNATING_EXPOSURE_CID_SIZE \
sizeof(struct alternating_exposure_cfg)
#endif /* __TEGRA_V4L2_CAMERA__ */