From 8aea1a4ef92d89610bad365aa1c21f665d01a2dd Mon Sep 17 00:00:00 2001 From: M1cha Date: Tue, 5 Sep 2017 08:08:37 +0300 Subject: z2_plus: add CameraWrapper Change-Id: I71a943658a713ac94fcfb9972747df9ebe1174cc --- camera-wrapper/CameraWrapper.cpp | 557 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 557 insertions(+) create mode 100644 camera-wrapper/CameraWrapper.cpp (limited to 'camera-wrapper/CameraWrapper.cpp') diff --git a/camera-wrapper/CameraWrapper.cpp b/camera-wrapper/CameraWrapper.cpp new file mode 100644 index 0000000..55bc71a --- /dev/null +++ b/camera-wrapper/CameraWrapper.cpp @@ -0,0 +1,557 @@ +/* + * Copyright (C) 2016, 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 + +#include +#include +#include +#include +#include +#include +#include + +using namespace android; + +static Mutex gCameraWrapperLock; +static camera_module_t *gVendorModule = 0; + +static char **fixed_set_params = NULL; + +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 = "MSM8996 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 */ +}; + +typedef struct wrapper_camera_device { + camera_device_t base; + int id; + camera_device_t *vendor; +} wrapper_camera_device_t; + +#define VENDOR_CALL(device, func, ...) ({ \ + wrapper_camera_device_t *__wrapper_dev = (wrapper_camera_device_t*) device; \ + __wrapper_dev->vendor->ops->func(__wrapper_dev->vendor, ##__VA_ARGS__); \ +}) + +#define CAMERA_ID(device) (((wrapper_camera_device_t *)(device))->id) + +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 bool can_talk_to_sensormanager() +{ + SensorManager& sensorManager( + SensorManager::getInstanceForPackage(String16("camera"))); + Sensor const * const * sensorList; + return sensorManager.getSensorList(&sensorList) >= 0; +} + +/******************************************************************* + * implementation of camera_device_ops functions + *******************************************************************/ + +static int camera_set_preview_window(struct camera_device *device, + struct preview_stream_ops *window) +{ + if (!device) + return -EINVAL; + + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, + (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + return VENDOR_CALL(device, set_preview_window, window); +} + +static void camera_set_callbacks(struct camera_device *device, + camera_notify_callback notify_cb, + camera_data_callback data_cb, + camera_data_timestamp_callback data_cb_timestamp, + camera_request_memory get_memory, + void *user) +{ + if (!device) + return; + + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, + (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + VENDOR_CALL(device, set_callbacks, notify_cb, data_cb, data_cb_timestamp, + get_memory, user); +} + +static void camera_enable_msg_type(struct camera_device *device, + int32_t msg_type) +{ + if (!device) + return; + + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, + (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + VENDOR_CALL(device, enable_msg_type, msg_type); +} + +static void camera_disable_msg_type(struct camera_device *device, + int32_t msg_type) +{ + if (!device) + return; + + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, + (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + VENDOR_CALL(device, disable_msg_type, msg_type); +} + +static int camera_msg_type_enabled(struct camera_device *device, + int32_t msg_type) +{ + if (!device) + return 0; + + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, + (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + return VENDOR_CALL(device, msg_type_enabled, msg_type); +} + +static int camera_start_preview(struct camera_device *device) +{ + if (!device) + return -EINVAL; + + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, + (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + return VENDOR_CALL(device, start_preview); +} + +static void camera_stop_preview(struct camera_device *device) +{ + if (!device) + return; + + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, + (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + VENDOR_CALL(device, stop_preview); +} + +static int camera_preview_enabled(struct camera_device *device) +{ + if (!device) + return -EINVAL; + + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, + (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + return VENDOR_CALL(device, preview_enabled); +} + +static int camera_store_meta_data_in_buffers(struct camera_device *device, + int enable) +{ + if (!device) + return -EINVAL; + + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, + (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + return VENDOR_CALL(device, store_meta_data_in_buffers, enable); +} + +static int camera_start_recording(struct camera_device *device) +{ + if (!device) + return EINVAL; + + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, + (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + return VENDOR_CALL(device, start_recording); +} + +static void camera_stop_recording(struct camera_device *device) +{ + if (!device) + return; + + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, + (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + VENDOR_CALL(device, stop_recording); +} + +static int camera_recording_enabled(struct camera_device *device) +{ + if (!device) + return -EINVAL; + + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, + (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + return VENDOR_CALL(device, recording_enabled); +} + +static void camera_release_recording_frame(struct camera_device *device, + const void *opaque) +{ + if (!device) + return; + + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, + (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + VENDOR_CALL(device, release_recording_frame, opaque); +} + +static int camera_auto_focus(struct camera_device *device) +{ + if (!device) + return -EINVAL; + + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, + (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + return VENDOR_CALL(device, auto_focus); +} + +static int camera_cancel_auto_focus(struct camera_device *device) +{ + if (!device) + return -EINVAL; + + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, + (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + return VENDOR_CALL(device, cancel_auto_focus); +} + +static int camera_take_picture(struct camera_device *device) +{ + if (!device) + return -EINVAL; + + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, + (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + return VENDOR_CALL(device, take_picture); +} + +static int camera_cancel_picture(struct camera_device *device) +{ + if (!device) + return -EINVAL; + + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, + (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + return VENDOR_CALL(device, cancel_picture); +} + +static int camera_set_parameters(struct camera_device *device, + const char *params) +{ + if (!device) + return -EINVAL; + + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, + (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + return VENDOR_CALL(device, set_parameters, params); +} + +static char *camera_get_parameters(struct camera_device *device) +{ + if (!device) + return NULL; + + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, + (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + return VENDOR_CALL(device, get_parameters); +} + +static void camera_put_parameters(struct camera_device *device, char *params) +{ + if (device) { + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, + (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + } + + if (params) + free(params); +} + +static int camera_send_command(struct camera_device *device, + int32_t cmd, int32_t arg1, int32_t arg2) +{ + if (!device) + return -EINVAL; + + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, + (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + return VENDOR_CALL(device, send_command, cmd, arg1, arg2); +} + +static void camera_release(struct camera_device *device) +{ + if (!device) + return; + + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, + (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + VENDOR_CALL(device, release); +} + +static int camera_dump(struct camera_device *device, int fd) +{ + if (!device) + return -EINVAL; + + ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, + (uintptr_t)(((wrapper_camera_device_t*)device)->vendor)); + + return VENDOR_CALL(device, dump, fd); +} + +extern "C" void heaptracker_free_leaked_memory(void); + +static int camera_device_close(hw_device_t *device) +{ + int ret = 0; + wrapper_camera_device_t *wrapper_dev = NULL; + + ALOGV("%s", __FUNCTION__); + + Mutex::Autolock lock(gCameraWrapperLock); + + if (!device) { + ret = -EINVAL; + goto done; + } + + for (int i = 0; i < camera_get_number_of_cameras(); i++) { + if (fixed_set_params[i]) + free(fixed_set_params[i]); + } + + wrapper_dev = (wrapper_camera_device_t*) device; + + wrapper_dev->vendor->common.close((hw_device_t*)wrapper_dev->vendor); + if (wrapper_dev->base.ops) + free(wrapper_dev->base.ops); + free(wrapper_dev); +done: +#ifdef HEAPTRACKER + heaptracker_free_leaked_memory(); +#endif + return ret; +} + +/******************************************************************* + * implementation of camera_module functions + *******************************************************************/ + +/* open device handle to one of the cameras + * + * assume camera service will keep singleton of each camera + * so this function will always only be called once per camera instance + */ + +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; + wrapper_camera_device_t *camera_device = NULL; + camera_device_ops_t *camera_ops = NULL; + + Mutex::Autolock lock(gCameraWrapperLock); + + ALOGV("%s", __FUNCTION__); + + if (name != NULL) { + if (check_vendor_module()) + return -EINVAL; + + if (!can_talk_to_sensormanager()) { + ALOGE("Waiting for sensor service failed."); + return NO_INIT; + } + + cameraid = atoi(name); + num_cameras = gVendorModule->get_number_of_cameras(); + + fixed_set_params = (char **) malloc(sizeof(char *) * num_cameras); + if (!fixed_set_params) { + ALOGE("parameter memory allocation fail"); + rv = -ENOMEM; + goto fail; + } + memset(fixed_set_params, 0, sizeof(char *) * num_cameras); + + if (cameraid > num_cameras) { + ALOGE("camera service provided cameraid out of bounds, " + "cameraid = %d, num supported = %d", + cameraid, num_cameras); + rv = -EINVAL; + goto fail; + } + + camera_device = (wrapper_camera_device_t*)malloc(sizeof(*camera_device)); + if (!camera_device) { + ALOGE("camera_device allocation fail"); + rv = -ENOMEM; + goto fail; + } + memset(camera_device, 0, sizeof(*camera_device)); + camera_device->id = cameraid; + + rv = gVendorModule->common.methods->open( + (const hw_module_t*)gVendorModule, name, + (hw_device_t**)&(camera_device->vendor)); + if (rv) { + ALOGE("vendor camera open fail"); + goto fail; + } + ALOGV("%s: got vendor camera device 0x%08X", + __FUNCTION__, (uintptr_t)(camera_device->vendor)); + + camera_ops = (camera_device_ops_t*)malloc(sizeof(*camera_ops)); + if (!camera_ops) { + ALOGE("camera_ops allocation fail"); + rv = -ENOMEM; + goto fail; + } + + memset(camera_ops, 0, sizeof(*camera_ops)); + + camera_device->base.common.tag = HARDWARE_DEVICE_TAG; + camera_device->base.common.version = CAMERA_MODULE_API_VERSION_1_0; + camera_device->base.common.module = (hw_module_t *)(module); + camera_device->base.common.close = camera_device_close; + camera_device->base.ops = camera_ops; + + camera_ops->set_preview_window = camera_set_preview_window; + camera_ops->set_callbacks = camera_set_callbacks; + camera_ops->enable_msg_type = camera_enable_msg_type; + camera_ops->disable_msg_type = camera_disable_msg_type; + camera_ops->msg_type_enabled = camera_msg_type_enabled; + camera_ops->start_preview = camera_start_preview; + camera_ops->stop_preview = camera_stop_preview; + camera_ops->preview_enabled = camera_preview_enabled; + camera_ops->store_meta_data_in_buffers = camera_store_meta_data_in_buffers; + camera_ops->start_recording = camera_start_recording; + camera_ops->stop_recording = camera_stop_recording; + camera_ops->recording_enabled = camera_recording_enabled; + camera_ops->release_recording_frame = camera_release_recording_frame; + camera_ops->auto_focus = camera_auto_focus; + camera_ops->cancel_auto_focus = camera_cancel_auto_focus; + camera_ops->take_picture = camera_take_picture; + camera_ops->cancel_picture = camera_cancel_picture; + camera_ops->set_parameters = camera_set_parameters; + camera_ops->get_parameters = camera_get_parameters; + camera_ops->put_parameters = camera_put_parameters; + camera_ops->send_command = camera_send_command; + camera_ops->release = camera_release; + camera_ops->dump = camera_dump; + + *device = &camera_device->base.common; + } + + return rv; + +fail: + if (camera_device) { + free(camera_device); + camera_device = NULL; + } + if (camera_ops) { + free(camera_ops); + camera_ops = NULL; + } + *device = NULL; + 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); +} -- cgit v1.2.3