141693fa555101e348a4ab80990b21197347892c1Iliyan Malchev/* 241693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * Copyright (C) 2010-2011 The Android Open Source Project 341693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * 441693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * Licensed under the Apache License, Version 2.0 (the "License"); 541693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * you may not use this file except in compliance with the License. 641693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * You may obtain a copy of the License at 741693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * 841693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * http://www.apache.org/licenses/LICENSE-2.0 941693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * 1041693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * Unless required by applicable law or agreed to in writing, software 1141693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * distributed under the License is distributed on an "AS IS" BASIS, 1241693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1341693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * See the License for the specific language governing permissions and 1441693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * limitations under the License. 1541693fa555101e348a4ab80990b21197347892c1Iliyan Malchev */ 1641693fa555101e348a4ab80990b21197347892c1Iliyan Malchev 1741693fa555101e348a4ab80990b21197347892c1Iliyan Malchev#ifndef ANDROID_INCLUDE_CAMERA_H 1841693fa555101e348a4ab80990b21197347892c1Iliyan Malchev#define ANDROID_INCLUDE_CAMERA_H 1941693fa555101e348a4ab80990b21197347892c1Iliyan Malchev 208bf364ef20331ebcc23b1f72121434a98bc5c567Eino-Ville Talvala#include "camera_common.h" 2141693fa555101e348a4ab80990b21197347892c1Iliyan Malchev 2241693fa555101e348a4ab80990b21197347892c1Iliyan Malchev/** 23ddc026e39344169f64f4696174a4d1269d069557Eino-Ville Talvala * Camera device HAL, initial version [ CAMERA_DEVICE_API_VERSION_1_0 ] 248bf364ef20331ebcc23b1f72121434a98bc5c567Eino-Ville Talvala * 258bf364ef20331ebcc23b1f72121434a98bc5c567Eino-Ville Talvala * Supports the android.hardware.Camera API. 268bf364ef20331ebcc23b1f72121434a98bc5c567Eino-Ville Talvala * 278bf364ef20331ebcc23b1f72121434a98bc5c567Eino-Ville Talvala * Camera devices that support this version of the HAL must return a value in 288bf364ef20331ebcc23b1f72121434a98bc5c567Eino-Ville Talvala * the range HARDWARE_DEVICE_API_VERSION(0,0)-(1,FF) in 29ddc026e39344169f64f4696174a4d1269d069557Eino-Ville Talvala * camera_device_t.common.version. CAMERA_DEVICE_API_VERSION_1_0 is the 30ddc026e39344169f64f4696174a4d1269d069557Eino-Ville Talvala * recommended value. 318bf364ef20331ebcc23b1f72121434a98bc5c567Eino-Ville Talvala * 328bf364ef20331ebcc23b1f72121434a98bc5c567Eino-Ville Talvala * Camera modules that implement version 2.0 or higher of camera_module_t must 338bf364ef20331ebcc23b1f72121434a98bc5c567Eino-Ville Talvala * also return the value of camera_device_t.common.version in 348bf364ef20331ebcc23b1f72121434a98bc5c567Eino-Ville Talvala * camera_info_t.device_version. 358bf364ef20331ebcc23b1f72121434a98bc5c567Eino-Ville Talvala * 368bf364ef20331ebcc23b1f72121434a98bc5c567Eino-Ville Talvala * See camera_common.h for more details. 3741693fa555101e348a4ab80990b21197347892c1Iliyan Malchev */ 3841693fa555101e348a4ab80990b21197347892c1Iliyan Malchev 398bf364ef20331ebcc23b1f72121434a98bc5c567Eino-Ville Talvala__BEGIN_DECLS 4041693fa555101e348a4ab80990b21197347892c1Iliyan Malchev 4124b325e614747266c2488f2f973a03c501bcfe9cIliyan Malchevstruct camera_memory; 4224b325e614747266c2488f2f973a03c501bcfe9cIliyan Malchevtypedef void (*camera_release_memory)(struct camera_memory *mem); 4324b325e614747266c2488f2f973a03c501bcfe9cIliyan Malchev 4441693fa555101e348a4ab80990b21197347892c1Iliyan Malchevtypedef struct camera_memory { 4541693fa555101e348a4ab80990b21197347892c1Iliyan Malchev void *data; 4641693fa555101e348a4ab80990b21197347892c1Iliyan Malchev size_t size; 4741693fa555101e348a4ab80990b21197347892c1Iliyan Malchev void *handle; 4824b325e614747266c2488f2f973a03c501bcfe9cIliyan Malchev camera_release_memory release; 4941693fa555101e348a4ab80990b21197347892c1Iliyan Malchev} camera_memory_t; 5041693fa555101e348a4ab80990b21197347892c1Iliyan Malchev 5124b325e614747266c2488f2f973a03c501bcfe9cIliyan Malchevtypedef camera_memory_t* (*camera_request_memory)(int fd, size_t buf_size, unsigned int num_bufs, 5224b325e614747266c2488f2f973a03c501bcfe9cIliyan Malchev void *user); 5341693fa555101e348a4ab80990b21197347892c1Iliyan Malchev 5441693fa555101e348a4ab80990b21197347892c1Iliyan Malchevtypedef void (*camera_notify_callback)(int32_t msg_type, 5541693fa555101e348a4ab80990b21197347892c1Iliyan Malchev int32_t ext1, 5641693fa555101e348a4ab80990b21197347892c1Iliyan Malchev int32_t ext2, 5741693fa555101e348a4ab80990b21197347892c1Iliyan Malchev void *user); 5841693fa555101e348a4ab80990b21197347892c1Iliyan Malchev 5941693fa555101e348a4ab80990b21197347892c1Iliyan Malchevtypedef void (*camera_data_callback)(int32_t msg_type, 6024b325e614747266c2488f2f973a03c501bcfe9cIliyan Malchev const camera_memory_t *data, unsigned int index, 6137ea6f730e9775fca95f688fec34d8627da992b6Wu-cheng Li camera_frame_metadata_t *metadata, void *user); 6241693fa555101e348a4ab80990b21197347892c1Iliyan Malchev 6341693fa555101e348a4ab80990b21197347892c1Iliyan Malchevtypedef void (*camera_data_timestamp_callback)(int64_t timestamp, 6441693fa555101e348a4ab80990b21197347892c1Iliyan Malchev int32_t msg_type, 6524b325e614747266c2488f2f973a03c501bcfe9cIliyan Malchev const camera_memory_t *data, unsigned int index, 6641693fa555101e348a4ab80990b21197347892c1Iliyan Malchev void *user); 6741693fa555101e348a4ab80990b21197347892c1Iliyan Malchev 6841693fa555101e348a4ab80990b21197347892c1Iliyan Malchev#define HAL_CAMERA_PREVIEW_WINDOW_TAG 0xcafed00d 6941693fa555101e348a4ab80990b21197347892c1Iliyan Malchev 7041693fa555101e348a4ab80990b21197347892c1Iliyan Malchevtypedef struct preview_stream_ops { 7141693fa555101e348a4ab80990b21197347892c1Iliyan Malchev int (*dequeue_buffer)(struct preview_stream_ops* w, 724deb188904e3fa3c35e26dd71f45ebb1aa34ea26Iliyan Malchev buffer_handle_t** buffer, int *stride); 7341693fa555101e348a4ab80990b21197347892c1Iliyan Malchev int (*enqueue_buffer)(struct preview_stream_ops* w, 7441693fa555101e348a4ab80990b21197347892c1Iliyan Malchev buffer_handle_t* buffer); 7541693fa555101e348a4ab80990b21197347892c1Iliyan Malchev int (*cancel_buffer)(struct preview_stream_ops* w, 7641693fa555101e348a4ab80990b21197347892c1Iliyan Malchev buffer_handle_t* buffer); 7741693fa555101e348a4ab80990b21197347892c1Iliyan Malchev int (*set_buffer_count)(struct preview_stream_ops* w, int count); 7841693fa555101e348a4ab80990b21197347892c1Iliyan Malchev int (*set_buffers_geometry)(struct preview_stream_ops* pw, 7941693fa555101e348a4ab80990b21197347892c1Iliyan Malchev int w, int h, int format); 8041693fa555101e348a4ab80990b21197347892c1Iliyan Malchev int (*set_crop)(struct preview_stream_ops *w, 8141693fa555101e348a4ab80990b21197347892c1Iliyan Malchev int left, int top, int right, int bottom); 8241693fa555101e348a4ab80990b21197347892c1Iliyan Malchev int (*set_usage)(struct preview_stream_ops* w, int usage); 8341693fa555101e348a4ab80990b21197347892c1Iliyan Malchev int (*set_swap_interval)(struct preview_stream_ops *w, int interval); 8441693fa555101e348a4ab80990b21197347892c1Iliyan Malchev int (*get_min_undequeued_buffer_count)(const struct preview_stream_ops *w, 8541693fa555101e348a4ab80990b21197347892c1Iliyan Malchev int *count); 86ac0e067896c44b15c654800d6b232d6d2f813bf8Sundar Raman int (*lock_buffer)(struct preview_stream_ops* w, 87ac0e067896c44b15c654800d6b232d6d2f813bf8Sundar Raman buffer_handle_t* buffer); 887c50e9bad4173cddff6dfc49ee0d4e10053867b4Eino-Ville Talvala // Timestamps are measured in nanoseconds, and must be comparable 897c50e9bad4173cddff6dfc49ee0d4e10053867b4Eino-Ville Talvala // and monotonically increasing between two frames in the same 907c50e9bad4173cddff6dfc49ee0d4e10053867b4Eino-Ville Talvala // preview stream. They do not need to be comparable between 917c50e9bad4173cddff6dfc49ee0d4e10053867b4Eino-Ville Talvala // consecutive or parallel preview streams, cameras, or app runs. 927c50e9bad4173cddff6dfc49ee0d4e10053867b4Eino-Ville Talvala int (*set_timestamp)(struct preview_stream_ops *w, int64_t timestamp); 9341693fa555101e348a4ab80990b21197347892c1Iliyan Malchev} preview_stream_ops_t; 9441693fa555101e348a4ab80990b21197347892c1Iliyan Malchev 9541693fa555101e348a4ab80990b21197347892c1Iliyan Malchevstruct camera_device; 9641693fa555101e348a4ab80990b21197347892c1Iliyan Malchevtypedef struct camera_device_ops { 9741693fa555101e348a4ab80990b21197347892c1Iliyan Malchev /** Set the ANativeWindow to which preview frames are sent */ 9841693fa555101e348a4ab80990b21197347892c1Iliyan Malchev int (*set_preview_window)(struct camera_device *, 9941693fa555101e348a4ab80990b21197347892c1Iliyan Malchev struct preview_stream_ops *window); 10041693fa555101e348a4ab80990b21197347892c1Iliyan Malchev 10141693fa555101e348a4ab80990b21197347892c1Iliyan Malchev /** Set the notification and data callbacks */ 10241693fa555101e348a4ab80990b21197347892c1Iliyan Malchev void (*set_callbacks)(struct camera_device *, 10341693fa555101e348a4ab80990b21197347892c1Iliyan Malchev camera_notify_callback notify_cb, 10441693fa555101e348a4ab80990b21197347892c1Iliyan Malchev camera_data_callback data_cb, 10541693fa555101e348a4ab80990b21197347892c1Iliyan Malchev camera_data_timestamp_callback data_cb_timestamp, 10641693fa555101e348a4ab80990b21197347892c1Iliyan Malchev camera_request_memory get_memory, 10741693fa555101e348a4ab80990b21197347892c1Iliyan Malchev void *user); 10841693fa555101e348a4ab80990b21197347892c1Iliyan Malchev 10941693fa555101e348a4ab80990b21197347892c1Iliyan Malchev /** 11041693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * The following three functions all take a msg_type, which is a bitmask of 11141693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * the messages defined in include/ui/Camera.h 11241693fa555101e348a4ab80990b21197347892c1Iliyan Malchev */ 11341693fa555101e348a4ab80990b21197347892c1Iliyan Malchev 11441693fa555101e348a4ab80990b21197347892c1Iliyan Malchev /** 11541693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * Enable a message, or set of messages. 11641693fa555101e348a4ab80990b21197347892c1Iliyan Malchev */ 11741693fa555101e348a4ab80990b21197347892c1Iliyan Malchev void (*enable_msg_type)(struct camera_device *, int32_t msg_type); 11841693fa555101e348a4ab80990b21197347892c1Iliyan Malchev 11941693fa555101e348a4ab80990b21197347892c1Iliyan Malchev /** 12041693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * Disable a message, or a set of messages. 12141693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * 12241693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * Once received a call to disableMsgType(CAMERA_MSG_VIDEO_FRAME), camera 12341693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * HAL should not rely on its client to call releaseRecordingFrame() to 12441693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * release video recording frames sent out by the cameral HAL before and 12541693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * after the disableMsgType(CAMERA_MSG_VIDEO_FRAME) call. Camera HAL 12641693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * clients must not modify/access any video recording frame after calling 12741693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * disableMsgType(CAMERA_MSG_VIDEO_FRAME). 12841693fa555101e348a4ab80990b21197347892c1Iliyan Malchev */ 12941693fa555101e348a4ab80990b21197347892c1Iliyan Malchev void (*disable_msg_type)(struct camera_device *, int32_t msg_type); 13041693fa555101e348a4ab80990b21197347892c1Iliyan Malchev 13141693fa555101e348a4ab80990b21197347892c1Iliyan Malchev /** 13241693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * Query whether a message, or a set of messages, is enabled. Note that 13341693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * this is operates as an AND, if any of the messages queried are off, this 13441693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * will return false. 13541693fa555101e348a4ab80990b21197347892c1Iliyan Malchev */ 13641693fa555101e348a4ab80990b21197347892c1Iliyan Malchev int (*msg_type_enabled)(struct camera_device *, int32_t msg_type); 13741693fa555101e348a4ab80990b21197347892c1Iliyan Malchev 13841693fa555101e348a4ab80990b21197347892c1Iliyan Malchev /** 13941693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * Start preview mode. 14041693fa555101e348a4ab80990b21197347892c1Iliyan Malchev */ 14141693fa555101e348a4ab80990b21197347892c1Iliyan Malchev int (*start_preview)(struct camera_device *); 14241693fa555101e348a4ab80990b21197347892c1Iliyan Malchev 14341693fa555101e348a4ab80990b21197347892c1Iliyan Malchev /** 14441693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * Stop a previously started preview. 14541693fa555101e348a4ab80990b21197347892c1Iliyan Malchev */ 14641693fa555101e348a4ab80990b21197347892c1Iliyan Malchev void (*stop_preview)(struct camera_device *); 14741693fa555101e348a4ab80990b21197347892c1Iliyan Malchev 14841693fa555101e348a4ab80990b21197347892c1Iliyan Malchev /** 14941693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * Returns true if preview is enabled. 15041693fa555101e348a4ab80990b21197347892c1Iliyan Malchev */ 15141693fa555101e348a4ab80990b21197347892c1Iliyan Malchev int (*preview_enabled)(struct camera_device *); 15241693fa555101e348a4ab80990b21197347892c1Iliyan Malchev 15341693fa555101e348a4ab80990b21197347892c1Iliyan Malchev /** 15441693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * Request the camera HAL to store meta data or real YUV data in the video 15541693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * buffers sent out via CAMERA_MSG_VIDEO_FRAME for a recording session. If 15641693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * it is not called, the default camera HAL behavior is to store real YUV 15741693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * data in the video buffers. 15841693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * 15941693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * This method should be called before startRecording() in order to be 16041693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * effective. 16141693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * 16241693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * If meta data is stored in the video buffers, it is up to the receiver of 16341693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * the video buffers to interpret the contents and to find the actual frame 16441693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * data with the help of the meta data in the buffer. How this is done is 16541693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * outside of the scope of this method. 16641693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * 16741693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * Some camera HALs may not support storing meta data in the video buffers, 16841693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * but all camera HALs should support storing real YUV data in the video 16941693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * buffers. If the camera HAL does not support storing the meta data in the 17041693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * video buffers when it is requested to do do, INVALID_OPERATION must be 17141693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * returned. It is very useful for the camera HAL to pass meta data rather 17241693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * than the actual frame data directly to the video encoder, since the 17341693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * amount of the uncompressed frame data can be very large if video size is 17441693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * large. 17541693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * 17641693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * @param enable if true to instruct the camera HAL to store 17741693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * meta data in the video buffers; false to instruct 17841693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * the camera HAL to store real YUV data in the video 17941693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * buffers. 18041693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * 18141693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * @return OK on success. 18241693fa555101e348a4ab80990b21197347892c1Iliyan Malchev */ 18341693fa555101e348a4ab80990b21197347892c1Iliyan Malchev int (*store_meta_data_in_buffers)(struct camera_device *, int enable); 18441693fa555101e348a4ab80990b21197347892c1Iliyan Malchev 18541693fa555101e348a4ab80990b21197347892c1Iliyan Malchev /** 18641693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * Start record mode. When a record image is available, a 18741693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * CAMERA_MSG_VIDEO_FRAME message is sent with the corresponding 18841693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * frame. Every record frame must be released by a camera HAL client via 18941693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * releaseRecordingFrame() before the client calls 19041693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * disableMsgType(CAMERA_MSG_VIDEO_FRAME). After the client calls 19141693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * disableMsgType(CAMERA_MSG_VIDEO_FRAME), it is the camera HAL's 19241693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * responsibility to manage the life-cycle of the video recording frames, 19341693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * and the client must not modify/access any video recording frames. 19441693fa555101e348a4ab80990b21197347892c1Iliyan Malchev */ 19541693fa555101e348a4ab80990b21197347892c1Iliyan Malchev int (*start_recording)(struct camera_device *); 19641693fa555101e348a4ab80990b21197347892c1Iliyan Malchev 19741693fa555101e348a4ab80990b21197347892c1Iliyan Malchev /** 19841693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * Stop a previously started recording. 19941693fa555101e348a4ab80990b21197347892c1Iliyan Malchev */ 20041693fa555101e348a4ab80990b21197347892c1Iliyan Malchev void (*stop_recording)(struct camera_device *); 20141693fa555101e348a4ab80990b21197347892c1Iliyan Malchev 20241693fa555101e348a4ab80990b21197347892c1Iliyan Malchev /** 20341693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * Returns true if recording is enabled. 20441693fa555101e348a4ab80990b21197347892c1Iliyan Malchev */ 20541693fa555101e348a4ab80990b21197347892c1Iliyan Malchev int (*recording_enabled)(struct camera_device *); 20641693fa555101e348a4ab80990b21197347892c1Iliyan Malchev 20741693fa555101e348a4ab80990b21197347892c1Iliyan Malchev /** 20841693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * Release a record frame previously returned by CAMERA_MSG_VIDEO_FRAME. 20941693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * 21041693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * It is camera HAL client's responsibility to release video recording 21141693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * frames sent out by the camera HAL before the camera HAL receives a call 21241693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * to disableMsgType(CAMERA_MSG_VIDEO_FRAME). After it receives the call to 21341693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * disableMsgType(CAMERA_MSG_VIDEO_FRAME), it is the camera HAL's 21441693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * responsibility to manage the life-cycle of the video recording frames. 21541693fa555101e348a4ab80990b21197347892c1Iliyan Malchev */ 21641693fa555101e348a4ab80990b21197347892c1Iliyan Malchev void (*release_recording_frame)(struct camera_device *, 21741693fa555101e348a4ab80990b21197347892c1Iliyan Malchev const void *opaque); 21841693fa555101e348a4ab80990b21197347892c1Iliyan Malchev 21941693fa555101e348a4ab80990b21197347892c1Iliyan Malchev /** 22041693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * Start auto focus, the notification callback routine is called with 22141693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * CAMERA_MSG_FOCUS once when focusing is complete. autoFocus() will be 22241693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * called again if another auto focus is needed. 22341693fa555101e348a4ab80990b21197347892c1Iliyan Malchev */ 22441693fa555101e348a4ab80990b21197347892c1Iliyan Malchev int (*auto_focus)(struct camera_device *); 22541693fa555101e348a4ab80990b21197347892c1Iliyan Malchev 22641693fa555101e348a4ab80990b21197347892c1Iliyan Malchev /** 22741693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * Cancels auto-focus function. If the auto-focus is still in progress, 22841693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * this function will cancel it. Whether the auto-focus is in progress or 22941693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * not, this function will return the focus position to the default. If 23041693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * the camera does not support auto-focus, this is a no-op. 23141693fa555101e348a4ab80990b21197347892c1Iliyan Malchev */ 23241693fa555101e348a4ab80990b21197347892c1Iliyan Malchev int (*cancel_auto_focus)(struct camera_device *); 23341693fa555101e348a4ab80990b21197347892c1Iliyan Malchev 23441693fa555101e348a4ab80990b21197347892c1Iliyan Malchev /** 23541693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * Take a picture. 23641693fa555101e348a4ab80990b21197347892c1Iliyan Malchev */ 23741693fa555101e348a4ab80990b21197347892c1Iliyan Malchev int (*take_picture)(struct camera_device *); 23841693fa555101e348a4ab80990b21197347892c1Iliyan Malchev 23941693fa555101e348a4ab80990b21197347892c1Iliyan Malchev /** 24041693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * Cancel a picture that was started with takePicture. Calling this method 24141693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * when no picture is being taken is a no-op. 24241693fa555101e348a4ab80990b21197347892c1Iliyan Malchev */ 24341693fa555101e348a4ab80990b21197347892c1Iliyan Malchev int (*cancel_picture)(struct camera_device *); 24441693fa555101e348a4ab80990b21197347892c1Iliyan Malchev 24541693fa555101e348a4ab80990b21197347892c1Iliyan Malchev /** 24641693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * Set the camera parameters. This returns BAD_VALUE if any parameter is 24741693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * invalid or not supported. 24841693fa555101e348a4ab80990b21197347892c1Iliyan Malchev */ 24941693fa555101e348a4ab80990b21197347892c1Iliyan Malchev int (*set_parameters)(struct camera_device *, const char *parms); 25041693fa555101e348a4ab80990b21197347892c1Iliyan Malchev 2512280003113fec21d89fdd44a086e8d602df7c105Iliyan Malchev /** Retrieve the camera parameters. The buffer returned by the camera HAL 2522280003113fec21d89fdd44a086e8d602df7c105Iliyan Malchev must be returned back to it with put_parameters, if put_parameters 2532280003113fec21d89fdd44a086e8d602df7c105Iliyan Malchev is not NULL. 2542280003113fec21d89fdd44a086e8d602df7c105Iliyan Malchev */ 25541693fa555101e348a4ab80990b21197347892c1Iliyan Malchev char *(*get_parameters)(struct camera_device *); 25641693fa555101e348a4ab80990b21197347892c1Iliyan Malchev 2572280003113fec21d89fdd44a086e8d602df7c105Iliyan Malchev /** The camera HAL uses its own memory to pass us the parameters when we 2582280003113fec21d89fdd44a086e8d602df7c105Iliyan Malchev call get_parameters. Use this function to return the memory back to 2592280003113fec21d89fdd44a086e8d602df7c105Iliyan Malchev the camera HAL, if put_parameters is not NULL. If put_parameters 2602280003113fec21d89fdd44a086e8d602df7c105Iliyan Malchev is NULL, then you have to use free() to release the memory. 2612280003113fec21d89fdd44a086e8d602df7c105Iliyan Malchev */ 2622280003113fec21d89fdd44a086e8d602df7c105Iliyan Malchev void (*put_parameters)(struct camera_device *, char *); 2632280003113fec21d89fdd44a086e8d602df7c105Iliyan Malchev 26441693fa555101e348a4ab80990b21197347892c1Iliyan Malchev /** 26541693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * Send command to camera driver. 26641693fa555101e348a4ab80990b21197347892c1Iliyan Malchev */ 26741693fa555101e348a4ab80990b21197347892c1Iliyan Malchev int (*send_command)(struct camera_device *, 26841693fa555101e348a4ab80990b21197347892c1Iliyan Malchev int32_t cmd, int32_t arg1, int32_t arg2); 26941693fa555101e348a4ab80990b21197347892c1Iliyan Malchev 27041693fa555101e348a4ab80990b21197347892c1Iliyan Malchev /** 27141693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * Release the hardware resources owned by this object. Note that this is 27241693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * *not* done in the destructor. 27341693fa555101e348a4ab80990b21197347892c1Iliyan Malchev */ 27441693fa555101e348a4ab80990b21197347892c1Iliyan Malchev void (*release)(struct camera_device *); 27541693fa555101e348a4ab80990b21197347892c1Iliyan Malchev 27641693fa555101e348a4ab80990b21197347892c1Iliyan Malchev /** 27741693fa555101e348a4ab80990b21197347892c1Iliyan Malchev * Dump state of the camera hardware 27841693fa555101e348a4ab80990b21197347892c1Iliyan Malchev */ 27941693fa555101e348a4ab80990b21197347892c1Iliyan Malchev int (*dump)(struct camera_device *, int fd); 28041693fa555101e348a4ab80990b21197347892c1Iliyan Malchev} camera_device_ops_t; 28141693fa555101e348a4ab80990b21197347892c1Iliyan Malchev 28241693fa555101e348a4ab80990b21197347892c1Iliyan Malchevtypedef struct camera_device { 2838bf364ef20331ebcc23b1f72121434a98bc5c567Eino-Ville Talvala /** 2848bf364ef20331ebcc23b1f72121434a98bc5c567Eino-Ville Talvala * camera_device.common.version must be in the range 285ddc026e39344169f64f4696174a4d1269d069557Eino-Ville Talvala * HARDWARE_DEVICE_API_VERSION(0,0)-(1,FF). CAMERA_DEVICE_API_VERSION_1_0 is 286ddc026e39344169f64f4696174a4d1269d069557Eino-Ville Talvala * recommended. 2878bf364ef20331ebcc23b1f72121434a98bc5c567Eino-Ville Talvala */ 28841693fa555101e348a4ab80990b21197347892c1Iliyan Malchev hw_device_t common; 28941693fa555101e348a4ab80990b21197347892c1Iliyan Malchev camera_device_ops_t *ops; 29041693fa555101e348a4ab80990b21197347892c1Iliyan Malchev void *priv; 29141693fa555101e348a4ab80990b21197347892c1Iliyan Malchev} camera_device_t; 29241693fa555101e348a4ab80990b21197347892c1Iliyan Malchev 29341693fa555101e348a4ab80990b21197347892c1Iliyan Malchev__END_DECLS 29441693fa555101e348a4ab80990b21197347892c1Iliyan Malchev 2958bf364ef20331ebcc23b1f72121434a98bc5c567Eino-Ville Talvala#endif /* #ifdef ANDROID_INCLUDE_CAMERA_H */ 296