QCameraCmdThread.h revision 6c6d887243f26c81543d33c2f8aa169862324b40 
1/* Copyright (c) 2012, The Linux Foundataion. 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 __QCAMERA_CMD_THREAD_H__
31#define __QCAMERA_CMD_THREAD_H__
32
33#include <pthread.h>
34#include <cam_semaphore.h>
35
36#include "cam_types.h"
37#include "QCameraQueue.h"
38
39namespace qcamera {
40
41typedef enum
42{
43    CAMERA_CMD_TYPE_NONE,
44    CAMERA_CMD_TYPE_START_DATA_PROC,
45    CAMERA_CMD_TYPE_STOP_DATA_PROC,
46    CAMERA_CMD_TYPE_DO_NEXT_JOB,
47    CAMERA_CMD_TYPE_EXIT,
48    CAMERA_CMD_TYPE_MAX
49} camera_cmd_type_t;
50
51typedef struct {
52    camera_cmd_type_t cmd;
53} camera_cmd_t;
54
55class QCameraCmdThread {
56public:
57    QCameraCmdThread();
58    ~QCameraCmdThread();
59
60    int32_t launch(void *(*start_routine)(void *), void* user_data);
61    int32_t exit();
62    int32_t sendCmd(camera_cmd_type_t cmd, uint8_t sync_cmd, uint8_t priority);
63    camera_cmd_type_t getCmd();
64
65    QCameraQueue cmd_queue;      /* cmd queue */
66    pthread_t cmd_pid;           /* cmd thread ID */
67    cam_semaphore_t cmd_sem;               /* semaphore for cmd thread */
68    cam_semaphore_t sync_sem;              /* semaphore for synchronized call signal */
69};
70
71}; // namespace qcamera
72
73#endif /* __QCAMERA_CMD_THREAD_H__ */
74