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/* Copyright (C) 2014, The CyanogenMod Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @file CameraWrapper.cpp
*
* This file wraps a vendor camera module.
*
*/
//#define LOG_NDEBUG 0
#define LOG_TAG "CameraWrapper"
#include <cutils/log.h>
#include <hardware/hardware.h>
#include <hardware/camera.h>
#include <utils/threads.h>
#include <gui/SensorManager.h>
static android::Mutex gCameraWrapperLock;
static camera_module_t *gVendorModule = 0;
static int camera_device_open(const hw_module_t *module, const char *name,
hw_device_t **device);
static int camera_get_number_of_cameras(void);
static int camera_get_camera_info(int camera_id, struct camera_info *info);
static struct hw_module_methods_t camera_module_methods = {
.open = camera_device_open
};
camera_module_t HAL_MODULE_INFO_SYM = {
.common = {
.tag = HARDWARE_MODULE_TAG,
.module_api_version = CAMERA_MODULE_API_VERSION_1_0,
.hal_api_version = HARDWARE_HAL_API_VERSION,
.id = CAMERA_HARDWARE_MODULE_ID,
.name = "Moto X Pure Camera Wrapper",
.author = "The CyanogenMod Project",
.methods = &camera_module_methods,
.dso = NULL, /* remove compilation warnings */
.reserved = {0}, /* remove compilation warnings */
},
.get_number_of_cameras = camera_get_number_of_cameras,
.get_camera_info = camera_get_camera_info,
.set_callbacks = NULL, /* remove compilation warnings */
.get_vendor_tag_ops = NULL, /* remove compilation warnings */
.open_legacy = NULL, /* remove compilation warnings */
.set_torch_mode = NULL, /* remove compilation warnings */
.init = NULL, /* remove compilation warnings */
.reserved = {0}, /* remove compilation warnings */
};
static int check_vendor_module()
{
int rv = 0;
ALOGV("%s", __FUNCTION__);
if (gVendorModule)
return 0;
rv = hw_get_module_by_class("camera", "vendor",
(const hw_module_t**)&gVendorModule);
if (rv)
ALOGE("failed to open vendor camera module");
return rv;
}
static int camera_device_open(const hw_module_t *module, const char *name,
hw_device_t **device)
{
int rv = 0;
int num_cameras = 0;
int cameraid;
int cameraretry = 0;
android::Mutex::Autolock lock(gCameraWrapperLock);
ALOGV("%s", __FUNCTION__);
if (name == NULL || check_vendor_module() != android::NO_ERROR) {
return -EINVAL;
}
while (cameraretry < 3) {
rv = gVendorModule->common.methods->open(
(const hw_module_t*)gVendorModule, name,
device);
if (!rv)
break;
cameraretry++;
ALOGV("%s: open failed - retrying attempt %d",__FUNCTION__, cameraretry);
sleep(2);
}
if (rv)
ALOGE("vendor camera open fail");
return rv;
}
static int camera_get_number_of_cameras(void)
{
ALOGV("%s", __FUNCTION__);
if (check_vendor_module())
return 0;
return gVendorModule->get_number_of_cameras();
}
static int camera_get_camera_info(int camera_id, struct camera_info *info)
{
ALOGV("%s", __FUNCTION__);
if (check_vendor_module())
return 0;
return gVendorModule->get_camera_info(camera_id, info);
}
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