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/*
* Copyright (C) 2008, The Android Open Source Project
* Copyright (c) 2011-2012,2016 The Linux Foundation. All rights reserved.
*
* 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 <unistd.h>
#include <fcntl.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/ioctl.h>
#include <cutils/properties.h>
#include "gr.h"
#include "gpu.h"
#include "memalloc.h"
#include "alloc_controller.h"
using namespace gralloc;
int fb_device_open(const hw_module_t* module, const char* name,
hw_device_t** device);
static int gralloc_device_open(const hw_module_t* module, const char* name,
hw_device_t** device);
extern int gralloc_lock(gralloc_module_t const* module,
buffer_handle_t handle, int usage,
int l, int t, int w, int h,
void** vaddr);
extern int gralloc_lock_ycbcr(gralloc_module_t const* module,
buffer_handle_t handle, int usage,
int l, int t, int w, int h,
struct android_ycbcr *ycbcr);
extern int gralloc_unlock(gralloc_module_t const* module,
buffer_handle_t handle);
extern int gralloc_register_buffer(gralloc_module_t const* module,
buffer_handle_t handle);
extern int gralloc_unregister_buffer(gralloc_module_t const* module,
buffer_handle_t handle);
extern int gralloc_perform(struct gralloc_module_t const* module,
int operation, ... );
// HAL module methods
static struct hw_module_methods_t gralloc_module_methods = {
.open = gralloc_device_open
};
// HAL module initialize
struct private_module_t HAL_MODULE_INFO_SYM = {
.base = {
.common = {
.tag = HARDWARE_MODULE_TAG,
.version_major = 1,
.version_minor = 0,
.id = GRALLOC_HARDWARE_MODULE_ID,
.name = "Graphics Memory Allocator Module",
.author = "The Android Open Source Project",
.methods = &gralloc_module_methods,
.dso = 0,
.reserved = {0},
},
.registerBuffer = gralloc_register_buffer,
.unregisterBuffer = gralloc_unregister_buffer,
.lock = gralloc_lock,
.unlock = gralloc_unlock,
.perform = gralloc_perform,
.lock_ycbcr = gralloc_lock_ycbcr,
},
.framebuffer = 0,
.fbFormat = 0,
.flags = 0,
.numBuffers = 0,
.bufferMask = 0,
.lock = PTHREAD_MUTEX_INITIALIZER,
};
// Open Gralloc device
int gralloc_device_open(const hw_module_t* module, const char* name,
hw_device_t** device)
{
int status = -EINVAL;
if (!strcmp(name, GRALLOC_HARDWARE_GPU0)) {
const private_module_t* m = reinterpret_cast<const private_module_t*>(
module);
gpu_context_t *dev;
IAllocController* alloc_ctrl = IAllocController::getInstance();
dev = new gpu_context_t(m, alloc_ctrl);
if(!dev)
return status;
*device = &dev->common;
status = 0;
} else {
status = fb_device_open(module, name, device);
}
return status;
}
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