142 lines
4 KiB
C++
142 lines
4 KiB
C++
/*
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* Copyright 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <errno.h>
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#include <fcntl.h>
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#include <malloc.h>
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#include <cutils/log.h>
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#include <cutils/native_handle.h>
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#include <hardware/tv_input.h>
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/*****************************************************************************/
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typedef struct tv_input_private {
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tv_input_device_t device;
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// Callback related data
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const tv_input_callback_ops_t* callback;
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void* callback_data;
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} tv_input_private_t;
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static int tv_input_device_open(const struct hw_module_t* module,
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const char* name, struct hw_device_t** device);
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static struct hw_module_methods_t tv_input_module_methods = {
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open: tv_input_device_open
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};
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tv_input_module_t HAL_MODULE_INFO_SYM = {
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common: {
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tag: HARDWARE_MODULE_TAG,
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version_major: 0,
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version_minor: 1,
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id: TV_INPUT_HARDWARE_MODULE_ID,
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name: "Sample TV input module",
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author: "The Android Open Source Project",
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methods: &tv_input_module_methods,
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}
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};
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/*****************************************************************************/
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static int tv_input_initialize(struct tv_input_device* dev,
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const tv_input_callback_ops_t* callback, void* data)
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{
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if (dev == NULL || callback == NULL) {
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return -EINVAL;
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}
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tv_input_private_t* priv = (tv_input_private_t*)dev;
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if (priv->callback != NULL) {
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return -EEXIST;
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}
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priv->callback = callback;
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priv->callback_data = data;
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return 0;
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}
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static int tv_input_get_stream_configurations(
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const struct tv_input_device*, int, int*, const tv_stream_config_t**)
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{
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return -EINVAL;
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}
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static int tv_input_open_stream(struct tv_input_device*, int, tv_stream_t*)
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{
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return -EINVAL;
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}
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static int tv_input_close_stream(struct tv_input_device*, int, int)
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{
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return -EINVAL;
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}
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static int tv_input_request_capture(
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struct tv_input_device*, int, int, buffer_handle_t, uint32_t)
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{
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return -EINVAL;
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}
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static int tv_input_cancel_capture(struct tv_input_device*, int, int, uint32_t)
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{
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return -EINVAL;
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}
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/*****************************************************************************/
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static int tv_input_device_close(struct hw_device_t *dev)
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{
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tv_input_private_t* priv = (tv_input_private_t*)dev;
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if (priv) {
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free(priv);
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}
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return 0;
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}
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/*****************************************************************************/
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static int tv_input_device_open(const struct hw_module_t* module,
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const char* name, struct hw_device_t** device)
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{
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int status = -EINVAL;
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if (!strcmp(name, TV_INPUT_DEFAULT_DEVICE)) {
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tv_input_private_t* dev = (tv_input_private_t*)malloc(sizeof(*dev));
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/* initialize our state here */
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memset(dev, 0, sizeof(*dev));
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/* initialize the procs */
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dev->device.common.tag = HARDWARE_DEVICE_TAG;
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dev->device.common.version = TV_INPUT_DEVICE_API_VERSION_0_1;
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dev->device.common.module = const_cast<hw_module_t*>(module);
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dev->device.common.close = tv_input_device_close;
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dev->device.initialize = tv_input_initialize;
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dev->device.get_stream_configurations =
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tv_input_get_stream_configurations;
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dev->device.open_stream = tv_input_open_stream;
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dev->device.close_stream = tv_input_close_stream;
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dev->device.request_capture = tv_input_request_capture;
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dev->device.cancel_capture = tv_input_cancel_capture;
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*device = &dev->device.common;
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status = 0;
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}
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return status;
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}
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