1/*
2 * Copyright (C) 2008, The Android Open Source Project
3 * Copyright (c) 2011-2012, The Linux Foundation. All rights reserved.
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 *      http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18#include <unistd.h>
19#include <fcntl.h>
20
21#include <sys/mman.h>
22#include <sys/stat.h>
23#include <sys/types.h>
24#include <sys/ioctl.h>
25#include <cutils/properties.h>
26
27#include "gr.h"
28#include "gpu.h"
29#include "memalloc.h"
30#include "alloc_controller.h"
31
32using namespace gralloc;
33
34int fb_device_open(const hw_module_t* module, const char* name,
35                   hw_device_t** device);
36
37static int gralloc_device_open(const hw_module_t* module, const char* name,
38                               hw_device_t** device);
39
40extern int gralloc_lock(gralloc_module_t const* module,
41                        buffer_handle_t handle, int usage,
42                        int l, int t, int w, int h,
43                        void** vaddr);
44
45extern int gralloc_lock_ycbcr(gralloc_module_t const* module,
46                        buffer_handle_t handle, int usage,
47                        int l, int t, int w, int h,
48                        struct android_ycbcr *ycbcr);
49
50extern int gralloc_unlock(gralloc_module_t const* module,
51                          buffer_handle_t handle);
52
53extern int gralloc_register_buffer(gralloc_module_t const* module,
54                                   buffer_handle_t handle);
55
56extern int gralloc_unregister_buffer(gralloc_module_t const* module,
57                                     buffer_handle_t handle);
58
59extern int gralloc_perform(struct gralloc_module_t const* module,
60                           int operation, ... );
61
62// HAL module methods
63static struct hw_module_methods_t gralloc_module_methods = {
64    open: gralloc_device_open
65};
66
67// HAL module initialize
68struct private_module_t HAL_MODULE_INFO_SYM = {
69    base: {
70        common: {
71            tag: HARDWARE_MODULE_TAG,
72            version_major: 1,
73            version_minor: 0,
74            id: GRALLOC_HARDWARE_MODULE_ID,
75            name: "Graphics Memory Allocator Module",
76            author: "The Android Open Source Project",
77            methods: &gralloc_module_methods,
78            dso: 0,
79            reserved: {0},
80        },
81        registerBuffer: gralloc_register_buffer,
82        unregisterBuffer: gralloc_unregister_buffer,
83        lock: gralloc_lock,
84        unlock: gralloc_unlock,
85        perform: gralloc_perform,
86        lock_ycbcr: gralloc_lock_ycbcr,
87    },
88    framebuffer: 0,
89    fbFormat: 0,
90    flags: 0,
91    numBuffers: 0,
92    bufferMask: 0,
93    lock: PTHREAD_MUTEX_INITIALIZER,
94};
95
96// Open Gralloc device
97int gralloc_device_open(const hw_module_t* module, const char* name,
98                        hw_device_t** device)
99{
100    int status = -EINVAL;
101    if (!strcmp(name, GRALLOC_HARDWARE_GPU0)) {
102        const private_module_t* m = reinterpret_cast<const private_module_t*>(
103            module);
104        gpu_context_t *dev;
105        IAllocController* alloc_ctrl = IAllocController::getInstance();
106        dev = new gpu_context_t(m, alloc_ctrl);
107        if(!dev)
108            return status;
109
110        *device = &dev->common;
111        status = 0;
112    } else {
113        status = fb_device_open(module, name, device);
114    }
115    return status;
116}
117