1 /* Copyright (c) 2016, The Linux Foundation. All rights reserved. 2 * 3 * Redistribution and use in source and binary forms, with or without 4 * modification, are permitted provided that the following conditions are 5 * met: 6 * * Redistributions of source code must retain the above copyright 7 * notice, this list of conditions and the following disclaimer. 8 * * Redistributions in binary form must reproduce the above 9 * copyright notice, this list of conditions and the following 10 * disclaimer in the documentation and/or other materials provided 11 * with the distribution. 12 * * Neither the name of The Linux Foundation nor the names of its 13 * contributors may be used to endorse or promote products derived 14 * from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 23 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 24 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 25 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN 26 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 */ 29 30 #ifndef __MM_CAMERA_SHIMLAYER_H_ 31 #define __MM_CAMERA_SHIMLAYER_H_ 32 33 #include "cam_intf.h" 34 35 /* 36 * MCT shim layer APIs 37 */ 38 #define SHIMLAYER_LIB "/system/vendor/lib/libmmcamera2_mct_shimlayer.so" 39 40 struct cam_shim_packet; 41 42 /* 43 * Bundled events structure. 44 */ 45 typedef struct { 46 uint8_t cmd_count; /* Total number of events in this packet */ 47 struct cam_shim_packet *cmd; /*Events to process*/ 48 } cam_shim_cmd_packet_t; 49 50 /* 51 * Bundled stream event structure 52 */ 53 typedef struct { 54 uint8_t stream_count; /*Number of streams in a bundle*/ 55 cam_shim_cmd_packet_t stream_event[MAX_NUM_STREAMS]; /*Event for different streams*/ 56 } cam_shim_stream_cmd_packet_t; 57 58 /* 59 * Command types to process in shim layer 60 */ 61 typedef enum { 62 CAM_SHIM_SET_PARM, /*v4l2 set parameter*/ 63 CAM_SHIM_GET_PARM, /*v4l2 get parameter*/ 64 CAM_SHIM_REG_BUF, /*Reg/unreg buffers with back-end*/ 65 CAM_SHIM_BUNDLE_CMD, /*Bundled command for streams*/ 66 } cam_shim_cmd_type; 67 68 typedef struct { 69 uint32_t command; /*V4L2 or private command*/ 70 uint32_t stream_id; /*streamID*/ 71 void *value; /*command value/data*/ 72 } cam_shim_cmd_data; 73 74 /* 75 * Structure to communicate command with shim layer 76 */ 77 typedef struct cam_shim_packet { 78 uint32_t session_id; 79 cam_shim_cmd_type cmd_type; /*Command type to process*/ 80 union { 81 cam_shim_cmd_data cmd_data; /*get/set parameter structure*/ 82 cam_reg_buf_t reg_buf; /*Buffer register and unregister*/ 83 cam_shim_stream_cmd_packet_t bundle_cmd;/*Bundled command*/ 84 }; 85 } cam_shim_packet_t; 86 87 typedef int32_t (*mm_camera_shim_event_handler_func)(uint32_t session_id, 88 cam_event_t *event); 89 90 typedef struct { 91 cam_status_t (*mm_camera_shim_open_session) (int session, 92 mm_camera_shim_event_handler_func evt_cb); 93 int32_t (*mm_camera_shim_close_session)(int session); 94 int32_t (*mm_camera_shim_send_cmd)(cam_shim_packet_t *event); 95 } mm_camera_shim_ops_t; 96 97 int32_t (*mm_camera_shim_module_init)(mm_camera_shim_ops_t *shim_ops); 98 99 #endif /*__MM_CAMERA_SHIMLAYER_H_*/ 100