/* Copyright (c) 2012-2016, The Linux Foundation. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials provided * with the distribution. * * Neither the name of The Linux Foundation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * */ #ifndef __MM_CAMERA_INTERFACE_H__ #define __MM_CAMERA_INTERFACE_H__ // System dependencies #include // Camera dependencies #include "cam_intf.h" #include "cam_queue.h" #define MM_CAMERA_MAX_NUM_SENSORS MSM_MAX_CAMERA_SENSORS #define MM_CAMERA_MAX_NUM_FRAMES CAM_MAX_NUM_BUFS_PER_STREAM /* num of channels allowed in a camera obj */ #define MM_CAMERA_CHANNEL_MAX 16 #define PAD_TO_SIZE(size, padding) \ ((size + (typeof(size))(padding - 1)) & \ (typeof(size))(~(padding - 1))) #define CEIL_DIVISION(n, d) ((n+d-1)/d) /** CAM_DUMP_TO_FILE: * @filename: file name * @name:filename * @index: index of the file * @extn: file extension * @p_addr: address of the buffer * @len: buffer length * * dump the image to the file **/ #define CAM_DUMP_TO_FILE(path, name, index, extn, p_addr, len) ({ \ size_t rc = 0; \ char filename[FILENAME_MAX]; \ if (index >= 0) \ snprintf(filename, FILENAME_MAX, "%s/%s%d.%s", path, name, index, extn); \ else \ snprintf(filename, FILENAME_MAX, "%s/%s.%s", path, name, extn); \ FILE *fp = fopen(filename, "w+"); \ if (fp) { \ rc = fwrite(p_addr, 1, len, fp); \ LOGE("written size %d", len); \ fclose(fp); \ } else { \ LOGE("open %s failed", filename); \ } \ }) /* Declaring Buffer structure */ struct mm_camera_buf_def; /** mm_camera_plane_def_t : structure for frame plane info * @num_planes : num of planes for the frame buffer, to be * filled during mem allocation * @planes : plane info for the frame buffer, to be filled * during mem allocation **/ typedef struct { int8_t num_planes; struct v4l2_plane planes[VIDEO_MAX_PLANES]; } mm_camera_plane_buf_def_t; /** mm_camera_user_buf_def_t : structure for frame plane info * @num_buffers : num of buffers in this user defined structure * @bufs_used : actual number of buffer filled * @buf_in_use : flag to notify buffer usage status. * @plane_buf : Plane buffer array pointer. **/ typedef struct { uint8_t num_buffers; uint8_t bufs_used; /*Num of Buffer filled by Kernel*/ uint8_t buf_in_use; /* Container buffer is freed to fill*/ int32_t buf_idx[MSM_CAMERA_MAX_USER_BUFF_CNT]; struct mm_camera_buf_def *plane_buf; } mm_camera_user_buf_def_t; /** mm_camera_buf_def_t: structure for stream frame buf * @stream_id : stream handler to uniquely identify a stream * object * @buf_idx : index of the buf within the stream bufs, to be * filled during mem allocation * @timespec_ts : time stamp, to be filled when DQBUF is * called * @frame_idx : frame sequence num, to be filled when DQBUF * @plane_buf : Frame plane definition * @fd : file descriptor of the frame buffer, to be filled * during mem allocation * @buffer : pointer to the frame buffer, to be filled during * mem allocation * @frame_len : length of the whole frame, to be filled during * mem allocation * @mem_info : user specific pointer to additional mem info * @flags: v4l2_buffer flags, used to report error in data buffers * @cache_flags: Stores cache related read/write flags **/ typedef struct mm_camera_buf_def { uint32_t stream_id; cam_stream_type_t stream_type; cam_stream_buf_type buf_type; uint32_t buf_idx; uint8_t is_uv_subsampled; struct timespec ts; uint32_t frame_idx; union { mm_camera_plane_buf_def_t planes_buf; mm_camera_user_buf_def_t user_buf; }; int fd; void *buffer; size_t frame_len; void *mem_info; uint32_t flags; uint32_t cache_flags; } mm_camera_buf_def_t; /** mm_camera_super_buf_t: super buf structure for bundled * stream frames * @camera_handle : camera handler to uniquely identify * a camera object * @ch_id : channel handler to uniquely ideentify a channel * object * @num_bufs : number of buffers in the super buf, should not * exceeds MAX_STREAM_NUM_IN_BUNDLE * @bufs : array of buffers in the bundle **/ typedef struct { uint32_t camera_handle; uint32_t ch_id; uint32_t num_bufs; uint8_t bUnlockAEC; uint8_t bReadyForPrepareSnapshot; mm_camera_buf_def_t* bufs[MAX_STREAM_NUM_IN_BUNDLE]; } mm_camera_super_buf_t; /** mm_camera_req_buf_type_t * Request type for super buf from channel **/ typedef enum { MM_CAMERA_REQ_SUPER_BUF, MM_CAMERA_REQ_FRAME_SYNC_BUF } mm_camera_req_buf_type_t; /** mm_camera_req_buf_t: Attributes for super buf request * * @type : type of super buf requested * @num_buf_requested : num of super bufs requested * @num_retro_buf_requested : number of retro bufs requested * @primary_only : specifies if only primary camera frame for a dual * camera is requested **/ typedef struct { mm_camera_req_buf_type_t type; uint32_t num_buf_requested; uint32_t num_retro_buf_requested; uint8_t primary_only; } mm_camera_req_buf_t; typedef cam_event_t mm_camera_event_t; /** mm_camera_event_notify_t: function definition for event * notify handling * @camera_handle : camera handler * @evt : pointer to an event struct * @user_data: user data pointer **/ typedef void (*mm_camera_event_notify_t)(uint32_t camera_handle, mm_camera_event_t *evt, void *user_data); /** mm_camera_buf_notify_t: function definition for frame notify * handling * @mm_camera_super_buf_t : received frame buffers * @user_data: user data pointer **/ typedef void (*mm_camera_buf_notify_t) (mm_camera_super_buf_t *bufs, void *user_data); /** map_stream_buf_op_t: function definition for operation of * mapping stream buffers via domain socket * @frame_idx : buffer index within stream buffers * @plane_idx : plane index. If all planes share the same * fd, plane_idx = -1; otherwise, plean_idx is * the index to plane (0..num_of_planes) * @fd : file descriptor of the stream buffer * @size: size of the stream buffer * @buffer: Pointer to buffer to register * @userdata : user data pointer **/ typedef int32_t (*map_stream_buf_op_t) (uint32_t frame_idx, int32_t plane_idx, int fd, size_t size, void *buffer, cam_mapping_buf_type type, void *userdata); typedef int32_t (*map_stream_bufs_op_t) (const cam_buf_map_type_list *buf_map_list, void *userdata); /** unmap_stream_buf_op_t: function definition for operation of * unmapping stream buffers via domain * socket * @frame_idx : buffer index within stream buffers * @plane_idx : plane index. If all planes share the same * fd, plane_idx = -1; otherwise, plean_idx is * the index to plane (0..num_of_planes) * @userdata : user data pointer **/ typedef int32_t (*unmap_stream_buf_op_t) (uint32_t frame_idx, int32_t plane_idx, cam_mapping_buf_type type, void *userdata); /** mm_camera_map_unmap_ops_tbl_t: virtual table * for mapping/unmapping stream buffers via * domain socket * @map_ops : operation for mapping * @unmap_ops : operation for unmapping * @userdata: user data pointer **/ typedef struct { map_stream_buf_op_t map_ops; map_stream_bufs_op_t bundled_map_ops; unmap_stream_buf_op_t unmap_ops; void *userdata; } mm_camera_map_unmap_ops_tbl_t; /** mm_camera_stream_mem_vtbl_t: virtual table for stream * memory allocation and deallocation * @get_bufs : function definition for allocating * stream buffers * @put_bufs : function definition for deallocating * stream buffers * @user_data: user data pointer **/ typedef struct { void *user_data; int32_t (*set_config_ops) (mm_camera_map_unmap_ops_tbl_t *ops_tbl, void *user_data); int32_t (*get_bufs) (cam_frame_len_offset_t *offset, uint8_t *num_bufs, uint8_t **initial_reg_flag, mm_camera_buf_def_t **bufs, mm_camera_map_unmap_ops_tbl_t *ops_tbl, void *user_data); int32_t (*put_bufs) (mm_camera_map_unmap_ops_tbl_t *ops_tbl, void *user_data); int32_t (*invalidate_buf)(uint32_t index, void *user_data); int32_t (*clean_invalidate_buf)(uint32_t index, void *user_data); int32_t (*clean_buf)(uint32_t index, void *user_data); } mm_camera_stream_mem_vtbl_t; /** mm_camera_stream_config_t: structure for stream * configuration * @stream_info : pointer to a stream info structure * @padding_info: padding info obtained from querycapability * @mem_tbl : memory operation table for * allocating/deallocating stream buffers * @stream_cb_sync : SYNC callback handling stream frame notify * @stream_cb : ASYNC callback handling stream frame notify * @userdata : user data pointer **/ typedef struct { cam_stream_info_t *stream_info; cam_padding_info_t padding_info; mm_camera_stream_mem_vtbl_t mem_vtbl; mm_camera_buf_notify_t stream_cb_sync; mm_camera_buf_notify_t stream_cb; void *userdata; } mm_camera_stream_config_t; /** mm_camera_super_buf_notify_mode_t: enum for super uffer * notification mode * @MM_CAMERA_SUPER_BUF_NOTIFY_BURST : * ZSL use case: get burst of frames * @MM_CAMERA_SUPER_BUF_NOTIFY_CONTINUOUS : * get continuous frames: when the super buf is ready * dispatch it to HAL **/ typedef enum { MM_CAMERA_SUPER_BUF_NOTIFY_BURST = 0, MM_CAMERA_SUPER_BUF_NOTIFY_CONTINUOUS, MM_CAMERA_SUPER_BUF_NOTIFY_MAX } mm_camera_super_buf_notify_mode_t; /** mm_camera_super_buf_priority_t: enum for super buffer * matching priority * @MM_CAMERA_SUPER_BUF_PRIORITY_NORMAL : * Save the frame no matter focused or not. Currently only * this type is supported. * @MM_CAMERA_SUPER_BUF_PRIORITY_FOCUS : * only queue the frame that is focused. Will enable meta * data header to carry focus info * @MM_CAMERA_SUPER_BUF_PRIORITY_EXPOSURE_BRACKETING : * after shutter, only queue matched exposure index **/ typedef enum { MM_CAMERA_SUPER_BUF_PRIORITY_NORMAL = 0, MM_CAMERA_SUPER_BUF_PRIORITY_FOCUS, MM_CAMERA_SUPER_BUF_PRIORITY_EXPOSURE_BRACKETING, MM_CAMERA_SUPER_BUF_PRIORITY_LOW,/* Bundled metadata frame may not match*/ MM_CAMERA_SUPER_BUF_PRIORITY_MAX } mm_camera_super_buf_priority_t; /** mm_camera_advanced_capture_t: enum for advanced capture type. * @MM_CAMERA_AF_BRACKETING : * to enable AF Bracketig. * @MM_CAMERA_AE_BRACKETING : * to enable AF Bracketing. * @MM_CAMERA_FLASH_BRACKETING : * to enable Flash Bracketing. * @MM_CAMERA_ZOOM_1X : * to enable zoom 1x capture request **/ typedef enum { MM_CAMERA_AF_BRACKETING = 0, MM_CAMERA_AE_BRACKETING, MM_CAMERA_FLASH_BRACKETING, MM_CAMERA_ZOOM_1X, MM_CAMERA_FRAME_CAPTURE, } mm_camera_advanced_capture_t; /** mm_camera_stream_cb_type: enum for stream buffer callback type. * @MM_CAMERA_STREAM_CB_TYPE_ASYNC : * callback is async type. buffer process done in client thread context * @MM_CAMERA_STREAM_CB_TYPE_SYNC : * callback is sync type. buffer process done interface thread context **/ typedef enum { MM_CAMERA_STREAM_CB_TYPE_ASYNC, MM_CAMERA_STREAM_CB_TYPE_SYNC, } mm_camera_stream_cb_type; /** mm_camera_channel_attr_t: structure for defining channel * attributes * @notify_mode : notify mode: burst or continuous * @water_mark : queue depth. Only valid for burst mode * @look_back : look back how many frames from last buf. * Only valid for burst mode * @post_frame_skip : after send first frame to HAL, how many * frames needing to be skipped for next * delivery. Only valid for burst mode * @max_unmatched_frames : max number of unmatched frames in * queue * @enable_frame_sync: Enables frame sync for dual camera * @priority : save matched priority frames only * @user_expected_frame_id : Number of frames, camera interface * will wait for getting the instant capture frame. **/ typedef struct { mm_camera_super_buf_notify_mode_t notify_mode; uint8_t water_mark; uint8_t look_back; uint8_t post_frame_skip; uint8_t max_unmatched_frames; uint8_t enable_frame_sync; mm_camera_super_buf_priority_t priority; uint8_t user_expected_frame_id; } mm_camera_channel_attr_t; typedef struct { /** query_capability: fucntion definition for querying static * camera capabilities * @camera_handle : camer handler * Return value: 0 -- success * -1 -- failure * Note: would assume cam_capability_t is already mapped **/ int32_t (*query_capability) (uint32_t camera_handle); /** register_event_notify: fucntion definition for registering * for event notification * @camera_handle : camer handler * @evt_cb : callback for event notify * @user_data : user data poiner * Return value: 0 -- success * -1 -- failure **/ int32_t (*register_event_notify) (uint32_t camera_handle, mm_camera_event_notify_t evt_cb, void *user_data); /** close_camera: fucntion definition for closing a camera * @camera_handle : camer handler * Return value: 0 -- success * -1 -- failure **/ int32_t (*close_camera) (uint32_t camera_handle); /** map_buf: fucntion definition for mapping a camera buffer * via domain socket * @camera_handle : camer handler * @buf_type : type of mapping buffers, can be value of * CAM_MAPPING_BUF_TYPE_CAPABILITY * CAM_MAPPING_BUF_TYPE_SETPARM_BUF * CAM_MAPPING_BUF_TYPE_GETPARM_BUF * @fd : file descriptor of the stream buffer * @size : size of the stream buffer * Return value: 0 -- success * -1 -- failure **/ int32_t (*map_buf) (uint32_t camera_handle, uint8_t buf_type, int fd, size_t size, void *buffer); /** map_bufs: function definition for mapping multiple camera buffers * via domain socket * @camera_handle : camera handler * @buf_map_list : list of buffers to map * Return value: 0 -- success * -1 -- failure **/ int32_t (*map_bufs) (uint32_t camera_handle, const cam_buf_map_type_list *buf_map_list); /** unmap_buf: fucntion definition for unmapping a camera buffer * via domain socket * @camera_handle : camer handler * @buf_type : type of mapping buffers, can be value of * CAM_MAPPING_BUF_TYPE_CAPABILITY * CAM_MAPPING_BUF_TYPE_SETPARM_BUF * CAM_MAPPING_BUF_TYPE_GETPARM_BUF * Return value: 0 -- success * -1 -- failure **/ int32_t (*unmap_buf) (uint32_t camera_handle, uint8_t buf_type); /** set_parms: fucntion definition for setting camera * based parameters to server * @camera_handle : camer handler * @parms : batch for parameters to be set, stored in * parm_buffer_t * Return value: 0 -- success * -1 -- failure * Note: would assume parm_buffer_t is already mapped, and * according parameter entries to be set are filled in the * buf before this call **/ int32_t (*set_parms) (uint32_t camera_handle, parm_buffer_t *parms); /** get_parms: fucntion definition for querying camera * based parameters from server * @camera_handle : camer handler * @parms : batch for parameters to be queried, stored in * parm_buffer_t * Return value: 0 -- success * -1 -- failure * Note: would assume parm_buffer_t is already mapped, and * according parameter entries to be queried are filled in * the buf before this call **/ int32_t (*get_parms) (uint32_t camera_handle, parm_buffer_t *parms); /** do_auto_focus: fucntion definition for performing auto focus * @camera_handle : camer handler * Return value: 0 -- success * -1 -- failure * Note: if this call success, we will always assume there will * be an auto_focus event following up. **/ int32_t (*do_auto_focus) (uint32_t camera_handle); /** cancel_auto_focus: fucntion definition for cancelling * previous auto focus request * @camera_handle : camer handler * Return value: 0 -- success * -1 -- failure **/ int32_t (*cancel_auto_focus) (uint32_t camera_handle); /** prepare_snapshot: fucntion definition for preparing hardware * for snapshot. * @camera_handle : camer handler * @do_af_flag : flag indicating if AF needs to be done * 0 -- no AF needed * 1 -- AF needed * Return value: 0 -- success * -1 -- failure **/ int32_t (*prepare_snapshot) (uint32_t camera_handle, int32_t do_af_flag); /** start_zsl_snapshot: function definition for starting * zsl snapshot. * @camera_handle : camer handler * @ch_id : channel id * Return value: 0 -- success * -1 -- failure **/ int32_t (*start_zsl_snapshot) (uint32_t camera_handle, uint32_t ch_id); /** stop_zsl_snapshot: function definition for stopping * zsl snapshot. * @camera_handle : camer handler * @ch_id : channel id * Return value: 0 -- success * -1 -- failure **/ int32_t (*stop_zsl_snapshot) (uint32_t camera_handle, uint32_t ch_id); /** add_channel: fucntion definition for adding a channel * @camera_handle : camer handler * @ch_id : channel handler * @attr : pointer to channel attribute structure * @channel_cb : callbak to handle bundled super buffer * @userdata : user data pointer * Return value: channel id, zero is invalid ch_id * Note: attr, channel_cb, and userdata can be NULL if no * superbufCB is needed **/ uint32_t (*add_channel) (uint32_t camera_handle, mm_camera_channel_attr_t *attr, mm_camera_buf_notify_t channel_cb, void *userdata); /** delete_channel: fucntion definition for deleting a channel * @camera_handle : camer handler * @ch_id : channel handler * Return value: 0 -- success * -1 -- failure **/ int32_t (*delete_channel) (uint32_t camera_handle, uint32_t ch_id); /** get_bundle_info: function definition for querying bundle * info of the channel * @camera_handle : camera handler * @ch_id : channel handler * @bundle_info : bundle info to be filled in * Return value: 0 -- success * -1 -- failure **/ int32_t (*get_bundle_info) (uint32_t camera_handle, uint32_t ch_id, cam_bundle_config_t *bundle_info); /** add_stream: fucntion definition for adding a stream * @camera_handle : camer handler * @ch_id : channel handler * Return value: stream_id. zero is invalid stream_id **/ uint32_t (*add_stream) (uint32_t camera_handle, uint32_t ch_id); /** delete_stream: fucntion definition for deleting a stream * @camera_handle : camer handler * @ch_id : channel handler * @stream_id : stream handler * Return value: 0 -- success * -1 -- failure **/ int32_t (*delete_stream) (uint32_t camera_handle, uint32_t ch_id, uint32_t stream_id); /** link_stream: function definition for linking a stream * @camera_handle : camera handle * @ch_id : channel handle from which the stream originates * @stream_id : stream handle * @linked_ch_id: channel handle in which the stream will be linked * Return value: 0 -- success * -1 -- failure **/ int32_t (*link_stream) (uint32_t camera_handle, uint32_t ch_id, uint32_t stream_id, uint32_t linked_ch_id); /** config_stream: fucntion definition for configuring a stream * @camera_handle : camer handler * @ch_id : channel handler * @stream_id : stream handler * @confid : pointer to a stream configuration structure * Return value: 0 -- success * -1 -- failure **/ int32_t (*config_stream) (uint32_t camera_handle, uint32_t ch_id, uint32_t stream_id, mm_camera_stream_config_t *config); /** map_stream_buf: fucntion definition for mapping * stream buffer via domain socket * @camera_handle : camer handler * @ch_id : channel handler * @stream_id : stream handler * @buf_type : type of mapping buffers, can be value of * CAM_MAPPING_BUF_TYPE_STREAM_BUF * CAM_MAPPING_BUF_TYPE_STREAM_INFO * CAM_MAPPING_BUF_TYPE_OFFLINE_INPUT_BUF * @buf_idx : buffer index within the stream buffers * @plane_idx : plane index. If all planes share the same fd, * plane_idx = -1; otherwise, plean_idx is the * index to plane (0..num_of_planes) * @fd : file descriptor of the stream buffer * @size : size of the stream buffer * Return value: 0 -- success * -1 -- failure **/ int32_t (*map_stream_buf) (uint32_t camera_handle, uint32_t ch_id, uint32_t stream_id, uint8_t buf_type, uint32_t buf_idx, int32_t plane_idx, int fd, size_t size, void *buffer); /** map_stream_bufs: function definition for mapping multiple * stream buffers via domain socket * @camera_handle : camera handler * @ch_id : channel handler * @buf_map_list : list of buffers to map * Return value: 0 -- success * -1 -- failure **/ int32_t (*map_stream_bufs) (uint32_t camera_handle, uint32_t ch_id, const cam_buf_map_type_list *buf_map_list); /** unmap_stream_buf: fucntion definition for unmapping * stream buffer via domain socket * @camera_handle : camer handler * @ch_id : channel handler * @stream_id : stream handler * @buf_type : type of mapping buffers, can be value of * CAM_MAPPING_BUF_TYPE_STREAM_BUF * CAM_MAPPING_BUF_TYPE_STREAM_INFO * CAM_MAPPING_BUF_TYPE_OFFLINE_INPUT_BUF * @buf_idx : buffer index within the stream buffers * @plane_idx : plane index. If all planes share the same fd, * plane_idx = -1; otherwise, plean_idx is the * index to plane (0..num_of_planes) * Return value: 0 -- success * -1 -- failure **/ int32_t (*unmap_stream_buf) (uint32_t camera_handle, uint32_t ch_id, uint32_t stream_id, uint8_t buf_type, uint32_t buf_idx, int32_t plane_idx); /** set_stream_parms: fucntion definition for setting stream * specific parameters to server * @camera_handle : camer handler * @ch_id : channel handler * @stream_id : stream handler * @parms : batch for parameters to be set * Return value: 0 -- success * -1 -- failure * Note: would assume parm buffer is already mapped, and * according parameter entries to be set are filled in the * buf before this call **/ int32_t (*set_stream_parms) (uint32_t camera_handle, uint32_t ch_id, uint32_t s_id, cam_stream_parm_buffer_t *parms); /** get_stream_parms: fucntion definition for querying stream * specific parameters from server * @camera_handle : camer handler * @ch_id : channel handler * @stream_id : stream handler * @parms : batch for parameters to be queried * Return value: 0 -- success * -1 -- failure * Note: would assume parm buffer is already mapped, and * according parameter entries to be queried are filled in * the buf before this call **/ int32_t (*get_stream_parms) (uint32_t camera_handle, uint32_t ch_id, uint32_t s_id, cam_stream_parm_buffer_t *parms); /** start_channel: fucntion definition for starting a channel * @camera_handle : camer handler * @ch_id : channel handler * Return value: 0 -- success * -1 -- failure * This call will start all streams belongs to the channel **/ int32_t (*start_channel) (uint32_t camera_handle, uint32_t ch_id); /** stop_channel: fucntion definition for stopping a channel * @camera_handle : camer handler * @ch_id : channel handler * Return value: 0 -- success * -1 -- failure * This call will stop all streams belongs to the channel **/ int32_t (*stop_channel) (uint32_t camera_handle, uint32_t ch_id); /** qbuf: fucntion definition for queuing a frame buffer back to * kernel for reuse * @camera_handle : camer handler * @ch_id : channel handler * @buf : a frame buffer to be queued back to kernel * Return value: 0 -- success * -1 -- failure **/ int32_t (*qbuf) (uint32_t camera_handle, uint32_t ch_id, mm_camera_buf_def_t *buf); /** cancel_buffer: fucntion definition for recalling a frame * buffer from the kernel this is most likely when h/w * failed to use this buffer and dropped the frame we use * this API to recall the buffer and return it to the * framework * @camera_handle : camer handler * @ch_id : channel handler * @stream_id : stream handle * @buf : a frame buffer to be queued back to kernel * Return value: 0 -- success * -1 -- failure **/ int32_t (*cancel_buffer) (uint32_t camera_handle, uint32_t ch_id, uint32_t stream_id, uint32_t buf_idx); /** get_queued_buf_count: fucntion definition for querying queued buf count * @camera_handle : camer handler * @ch_id : channel handler * @stream_id : stream handler * Return value: queued buf count **/ int32_t (*get_queued_buf_count) (uint32_t camera_handle, uint32_t ch_id, uint32_t stream_id); /** request_super_buf: fucntion definition for requesting frames * from superbuf queue in burst mode * @camera_handle : camer handler * @ch_id : channel handler * @buf : provides info related to the super buf request * Return value: 0 -- success * -1 -- failure **/ int32_t (*request_super_buf) (uint32_t camera_handle, uint32_t ch_id, mm_camera_req_buf_t *buf); /** cancel_super_buf_request: fucntion definition for canceling * frames dispatched from superbuf queue in * burst mode * @camera_handle : camer handler * @ch_id : channel handler * Return value: 0 -- success * -1 -- failure **/ int32_t (*cancel_super_buf_request) (uint32_t camera_handle, uint32_t ch_id); /** flush_super_buf_queue: function definition for flushing out * all frames in the superbuf queue up to frame_idx, * even if frames with frame_idx come in later than * this call. * @camera_handle : camer handler * @ch_id : channel handler * @frame_idx : frame index up until which all superbufs are flushed * Return value: 0 -- success * -1 -- failure **/ int32_t (*flush_super_buf_queue) (uint32_t camera_handle, uint32_t ch_id, uint32_t frame_idx); /** configure_notify_mode: function definition for configuring the * notification mode of channel * @camera_handle : camera handler * @ch_id : channel handler * @notify_mode : notification mode * Return value: 0 -- success * -1 -- failure **/ int32_t (*configure_notify_mode) (uint32_t camera_handle, uint32_t ch_id, mm_camera_super_buf_notify_mode_t notify_mode); /** process_advanced_capture: function definition for start/stop advanced capture * for snapshot. * @camera_handle : camera handle * @ch_id : channel handler * @type : advanced capture type. * @trigger : flag indicating if advanced capture needs to be done * 0 -- stop advanced capture * 1 -- start advanced capture * @in_value: Input value. Configaration * Return value: 0 -- success * -1 -- failure **/ int32_t (*process_advanced_capture) (uint32_t camera_handle, uint32_t ch_id, mm_camera_advanced_capture_t type, int8_t start_flag, void *in_value); /** get_session_id: gets the backend session id from the kernel * @camera_handle : camera handle * @sessionid : session id to be retrieved * Return value: 0 -- success * -1 -- failure * Note: if this call succeeds, we will get a valid session id **/ int32_t (*get_session_id) (uint32_t camera_handle, uint32_t* sessionid); /** sync_related_sensors: sends sync cmd * @camera_handle : camera handle * @related_cam_info : related cam info to be sent to server * Return value: 0 -- success * -1 -- failure * Note: if this call succeeds, we will get linking established in back end **/ int32_t (*sync_related_sensors) (uint32_t camera_handle, cam_sync_related_sensors_event_info_t* related_cam_info); /** flush: function definition for flush * @camera_handle: camera handler * Return value: 0 -- success * -1 -- failure **/ int32_t (*flush) (uint32_t camera_handle); /** register_stream_buf_cb: fucntion definition for registering special stream callbacks * @camera_handle : camer handler * @ch_id : channel handler * @stream_id : stream handler * @buf_cb : callback function pointer * @cb_type : Callback type SYNC/ASYNC * @userdata : user data pointer * Return value: 0 -- success * - 1 -- failure **/ int32_t (*register_stream_buf_cb) (uint32_t camera_handle, uint32_t ch_id, uint32_t stream_id, mm_camera_buf_notify_t buf_cb, mm_camera_stream_cb_type cb_type, void *userdata); } mm_camera_ops_t; /** mm_camera_vtbl_t: virtual table for camera operations * @camera_handle : camera handler which uniquely identifies a * camera object * @ops : API call table **/ typedef struct { uint32_t camera_handle; mm_camera_ops_t *ops; } mm_camera_vtbl_t; /* return number of cameras */ uint8_t get_num_of_cameras(); /* return reference pointer of camera vtbl */ int32_t camera_open(uint8_t camera_idx, mm_camera_vtbl_t **camera_obj); /* helper functions */ int32_t mm_stream_calc_offset_preview(cam_stream_info_t *stream_info, cam_dimension_t *dim, cam_padding_info_t *padding, cam_stream_buf_plane_info_t *buf_planes); int32_t mm_stream_calc_offset_post_view(cam_format_t fmt, cam_dimension_t *dim, cam_stream_buf_plane_info_t *buf_planes); int32_t mm_stream_calc_offset_snapshot(cam_format_t fmt, cam_dimension_t *dim, cam_padding_info_t *padding, cam_stream_buf_plane_info_t *buf_planes); int32_t mm_stream_calc_offset_raw(cam_format_t fmt, cam_dimension_t *dim, cam_padding_info_t *padding, cam_stream_buf_plane_info_t *buf_planes); int32_t mm_stream_calc_offset_video(cam_format_t fmt, cam_dimension_t *dim, cam_stream_buf_plane_info_t *buf_planes); int32_t mm_stream_calc_offset_metadata(cam_dimension_t *dim, cam_padding_info_t *padding, cam_stream_buf_plane_info_t *buf_planes); int32_t mm_stream_calc_offset_postproc(cam_stream_info_t *stream_info, cam_padding_info_t *padding, cam_stream_buf_plane_info_t *buf_planes); int32_t mm_stream_calc_offset_analysis(cam_format_t fmt, cam_dimension_t *dim, cam_padding_info_t *padding, cam_stream_buf_plane_info_t *buf_planes); uint32_t mm_stream_calc_lcm (int32_t num1, int32_t num2); struct camera_info *get_cam_info(uint32_t camera_id, cam_sync_type_t *pCamType); uint8_t is_yuv_sensor(uint32_t camera_id); #endif /*__MM_CAMERA_INTERFACE_H__*/