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 32 using namespace gralloc; 33 34 int fb_device_open(const hw_module_t* module, const char* name, 35 hw_device_t** device); 36 37 static int gralloc_device_open(const hw_module_t* module, const char* name, 38 hw_device_t** device); 39 40 extern 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 45 extern 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 50 extern int gralloc_unlock(gralloc_module_t const* module, 51 buffer_handle_t handle); 52 53 extern int gralloc_register_buffer(gralloc_module_t const* module, 54 buffer_handle_t handle); 55 56 extern int gralloc_unregister_buffer(gralloc_module_t const* module, 57 buffer_handle_t handle); 58 59 extern int gralloc_perform(struct gralloc_module_t const* module, 60 int operation, ... ); 61 62 // HAL module methods 63 static struct hw_module_methods_t gralloc_module_methods = { 64 open: gralloc_device_open 65 }; 66 67 // HAL module initialize 68 struct 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 currentBuffer: 0, 95 }; 96 97 // Open Gralloc device 98 int gralloc_device_open(const hw_module_t* module, const char* name, 99 hw_device_t** device) 100 { 101 int status = -EINVAL; 102 if (!strcmp(name, GRALLOC_HARDWARE_GPU0)) { 103 const private_module_t* m = reinterpret_cast<const private_module_t*>( 104 module); 105 gpu_context_t *dev; 106 IAllocController* alloc_ctrl = IAllocController::getInstance(); 107 dev = new gpu_context_t(m, alloc_ctrl); 108 if(!dev) 109 return status; 110 111 *device = &dev->common; 112 status = 0; 113 } else { 114 status = fb_device_open(module, name, device); 115 } 116 return status; 117 } 118
