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/*
* Copyright 2014 The Android Open Source 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.
*/
#include <errno.h>
#include <fcntl.h>
#include <malloc.h>
#include <cutils/log.h>
#include <cutils/native_handle.h>
#include <hardware/tv_input.h>
/*****************************************************************************/
typedef struct tv_input_private {
tv_input_device_t device;
// Callback related data
const tv_input_callback_ops_t* callback;
void* callback_data;
} tv_input_private_t;
static int tv_input_device_open(const struct hw_module_t* module,
const char* name, struct hw_device_t** device);
static struct hw_module_methods_t tv_input_module_methods = {
open: tv_input_device_open
};
tv_input_module_t HAL_MODULE_INFO_SYM = {
common: {
tag: HARDWARE_MODULE_TAG,
version_major: 0,
version_minor: 1,
id: TV_INPUT_HARDWARE_MODULE_ID,
name: "Sample TV input module",
author: "The Android Open Source Project",
methods: &tv_input_module_methods,
}
};
/*****************************************************************************/
static int tv_input_initialize(struct tv_input_device* dev,
const tv_input_callback_ops_t* callback, void* data)
{
if (dev == NULL || callback == NULL) {
return -EINVAL;
}
tv_input_private_t* priv = (tv_input_private_t*)dev;
if (priv->callback != NULL) {
return -EEXIST;
}
priv->callback = callback;
priv->callback_data = data;
return 0;
}
static int tv_input_get_stream_configurations(
const struct tv_input_device*, int, int*, const tv_stream_config_t**)
{
return -EINVAL;
}
static int tv_input_open_stream(struct tv_input_device*, int, tv_stream_t*)
{
return -EINVAL;
}
static int tv_input_close_stream(struct tv_input_device*, int, int)
{
return -EINVAL;
}
static int tv_input_request_capture(
struct tv_input_device*, int, int, buffer_handle_t, uint32_t)
{
return -EINVAL;
}
static int tv_input_cancel_capture(struct tv_input_device*, int, int, uint32_t)
{
return -EINVAL;
}
/*****************************************************************************/
static int tv_input_device_close(struct hw_device_t *dev)
{
tv_input_private_t* priv = (tv_input_private_t*)dev;
if (priv) {
free(priv);
}
return 0;
}
/*****************************************************************************/
static int tv_input_device_open(const struct hw_module_t* module,
const char* name, struct hw_device_t** device)
{
int status = -EINVAL;
if (!strcmp(name, TV_INPUT_DEFAULT_DEVICE)) {
tv_input_private_t* dev = (tv_input_private_t*)malloc(sizeof(*dev));
/* initialize our state here */
memset(dev, 0, sizeof(*dev));
/* initialize the procs */
dev->device.common.tag = HARDWARE_DEVICE_TAG;
dev->device.common.version = TV_INPUT_DEVICE_API_VERSION_0_1;
dev->device.common.module = const_cast<hw_module_t*>(module);
dev->device.common.close = tv_input_device_close;
dev->device.initialize = tv_input_initialize;
dev->device.get_stream_configurations =
tv_input_get_stream_configurations;
dev->device.open_stream = tv_input_open_stream;
dev->device.close_stream = tv_input_close_stream;
dev->device.request_capture = tv_input_request_capture;
dev->device.cancel_capture = tv_input_cancel_capture;
*device = &dev->device.common;
status = 0;
}
return status;
}
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