1 /*
2 ** Copyright (c) 2011 Code Aurora Forum. All rights reserved.
3 **
4 ** Licensed under the Apache License, Version 2.0 (the "License");
5 ** you may not use this file except in compliance with the License.
6 ** You may obtain a copy of the License at
7 **
8 ** http://www.apache.org/licenses/LICENSE-2.0
9 **
10 ** Unless required by applicable law or agreed to in writing, software
11 ** distributed under the License is distributed on an "AS IS" BASIS,
12 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 ** See the License for the specific language governing permissions and
14 ** limitations under the License.
15 */
16
17 /*#error uncomment this for compiler test!*/
18
19 //#define ALOG_NDEBUG 0
20 #define ALOG_NIDEBUG 0
21 #define LOG_TAG "QCameraHAL"
22 #include <utils/Log.h>
23 #include <utils/threads.h>
24 #include <fcntl.h>
25 #include <sys/mman.h>
26
27 /* include QCamera Hardware Interface Header*/
28 #include "QCameraHAL.h"
29
30 int HAL_numOfCameras = 0;
31 camera_info_t HAL_cameraInfo[MSM_MAX_CAMERA_SENSORS];
32 mm_camera_t * HAL_camerahandle[MSM_MAX_CAMERA_SENSORS];
33 int HAL_currentCameraMode;
34
35 namespace android {
36 /* HAL function implementation goes here*/
37
38 /**
39 * The functions need to be provided by the camera HAL.
40 *
41 * If getNumberOfCameras() returns N, the valid cameraId for getCameraInfo()
42 * and openCameraHardware() is 0 to N-1.
43 */
HAL_getNumberOfCameras()44 extern "C" int HAL_getNumberOfCameras()
45 {
46 /* try to query every time we get the call!*/
47 uint8_t num_camera = 0;
48 mm_camera_t * handle_base = 0;
49 ALOGV("%s: E", __func__);
50
51 handle_base= mm_camera_query(&num_camera);
52
53 if (!handle_base) {
54 HAL_numOfCameras = 0;
55 }
56 else
57 {
58 camera_info_t* p_camera_info = 0;
59 HAL_numOfCameras=num_camera;
60
61 ALOGI("Handle base =0x%p",handle_base);
62 ALOGI("getCameraInfo: numOfCameras = %d", HAL_numOfCameras);
63 for(int i = 0; i < HAL_numOfCameras; i++) {
64 ALOGI("Handle [%d]=0x%p",i,handle_base+i);
65 HAL_camerahandle[i]=handle_base + i;
66 p_camera_info = &(HAL_camerahandle[i]->camera_info);
67 if (p_camera_info) {
68 ALOGI("Camera sensor %d info:", i);
69 ALOGI("camera_id: %d", p_camera_info->camera_id);
70 ALOGI("modes_supported: %x", p_camera_info->modes_supported);
71 ALOGI("position: %d", p_camera_info->position);
72 ALOGI("sensor_mount_angle: %d", p_camera_info->sensor_mount_angle);
73 }
74 }
75 }
76
77 ALOGV("%s: X", __func__);
78
79 return HAL_numOfCameras;
80 }
81
HAL_isIn3DMode()82 extern "C" int HAL_isIn3DMode()
83 {
84 return HAL_currentCameraMode == CAMERA_MODE_3D;
85 }
86
HAL_getCameraInfo(int cameraId,struct CameraInfo * cameraInfo)87 extern "C" void HAL_getCameraInfo(int cameraId, struct CameraInfo* cameraInfo)
88 {
89 mm_camera_t *mm_camer_obj = 0;
90 ALOGV("%s: E", __func__);
91
92 if (!HAL_numOfCameras || HAL_numOfCameras < cameraId || !cameraInfo)
93 return;
94 else
95 mm_camer_obj = HAL_camerahandle[cameraId];
96
97 if (!mm_camer_obj)
98 return;
99 else {
100 cameraInfo->facing =
101 (FRONT_CAMERA == mm_camer_obj->camera_info.position)?
102 CAMERA_FACING_FRONT : CAMERA_FACING_BACK;
103
104 cameraInfo->orientation = mm_camer_obj->camera_info.sensor_mount_angle;
105 #if 0
106 // TODO: fix me
107 /* We always supprot ZSL in our stack*/
108 cameraInfo->mode = CAMERA_SUPPORT_MODE_ZSL;
109 if (mm_camer_obj->camera_info.modes_supported & CAMERA_MODE_2D) {
110 cameraInfo->mode |= CAMERA_SUPPORT_MODE_2D;
111 }
112 if (mm_camer_obj->camera_info.modes_supported & CAMERA_MODE_3D) {
113 cameraInfo->mode |= CAMERA_SUPPORT_MODE_3D;
114 }
115 #endif
116 }
117 ALOGV("%s: X", __func__);
118 return;
119 }
120
121 /* HAL should return NULL if it fails to open camera hardware. */
HAL_openCameraHardware(int cameraId,int mode)122 extern "C" void * HAL_openCameraHardware(int cameraId, int mode)
123 {
124 ALOGV("%s: E", __func__);
125 if (!HAL_numOfCameras || HAL_numOfCameras < cameraId ||cameraId < 0) {
126 return NULL;
127 }
128 return QCameraHAL_openCameraHardware(cameraId, mode);
129 }
130
131
132 }; // namespace android
133