1 /* 2 * Copyright (C) 2010 ARM Limited. All rights reserved. 3 * 4 * Copyright (C) 2008 The Android Open Source Project 5 * 6 * Licensed under the Apache License, Version 2.0 (the "License"); 7 * you may not use this file except in compliance with the License. 8 * You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 19 #ifndef GRALLOC_PRIV_H_ 20 #define GRALLOC_PRIV_H_ 21 22 #include <stdint.h> 23 #include <pthread.h> 24 #include <errno.h> 25 #include <linux/fb.h> 26 #include <sys/types.h> 27 #include <unistd.h> 28 29 #include <hardware/gralloc.h> 30 #include <cutils/native_handle.h> 31 #include <alloc_device.h> 32 #include <utils/Log.h> 33 34 #ifdef MALI_600 35 #define GRALLOC_ARM_UMP_MODULE 0 36 #define GRALLOC_ARM_DMA_BUF_MODULE 1 37 #else 38 39 /* NOTE: 40 * If your framebuffer device driver is integrated with UMP, you will have to 41 * change this IOCTL definition to reflect your integration with the framebuffer 42 * device. 43 * Expected return value is a UMP secure id backing your framebuffer device memory. 44 */ 45 46 /*#define IOCTL_GET_FB_UMP_SECURE_ID _IOR('F', 311, unsigned int)*/ 47 #define GRALLOC_ARM_UMP_MODULE 0 48 #define GRALLOC_ARM_DMA_BUF_MODULE 1 49 50 /* NOTE: 51 * If your framebuffer device driver is integrated with dma_buf, you will have to 52 * change this IOCTL definition to reflect your integration with the framebuffer 53 * device. 54 * Expected return value is a structure filled with a file descriptor 55 * backing your framebuffer device memory. 56 */ 57 #if GRALLOC_ARM_DMA_BUF_MODULE 58 struct fb_dmabuf_export 59 { 60 __u32 fd; 61 __u32 flags; 62 }; 63 /*#define FBIOGET_DMABUF _IOR('F', 0x21, struct fb_dmabuf_export)*/ 64 65 #if PLATFORM_SDK_VERSION >= 21 66 typedef int ion_user_handle_t; 67 #define ION_INVALID_HANDLE 0 68 #else 69 70 typedef struct ion_handle *ion_user_handle_t; 71 72 #define ION_INVALID_HANDLE NULL 73 #endif /* new libion */ 74 75 #endif /* GRALLOC_ARM_DMA_BUF_MODULE */ 76 77 78 #endif 79 80 /* the max string size of GRALLOC_HARDWARE_GPU0 & GRALLOC_HARDWARE_FB0 81 * 8 is big enough for "gpu0" & "fb0" currently 82 */ 83 #define MALI_GRALLOC_HARDWARE_MAX_STR_LEN 8 84 #define NUM_FB_BUFFERS 2 85 86 #if GRALLOC_ARM_UMP_MODULE 87 #include <ump/ump.h> 88 #endif 89 90 #define MALI_IGNORE(x) (void)x 91 typedef enum 92 { 93 MALI_YUV_NO_INFO, 94 MALI_YUV_BT601_NARROW, 95 MALI_YUV_BT601_WIDE, 96 MALI_YUV_BT709_NARROW, 97 MALI_YUV_BT709_WIDE, 98 } mali_gralloc_yuv_info; 99 100 struct private_handle_t; 101 102 struct private_module_t 103 { 104 gralloc_module_t base; 105 106 private_handle_t *framebuffer; 107 uint32_t flags; 108 uint32_t numBuffers; 109 uint32_t bufferMask; 110 pthread_mutex_t lock; 111 buffer_handle_t currentBuffer; 112 int ion_client; 113 114 struct fb_var_screeninfo info; 115 struct fb_fix_screeninfo finfo; 116 float xdpi; 117 float ydpi; 118 float fps; 119 120 enum 121 { 122 // flag to indicate we'll post this buffer 123 PRIV_USAGE_LOCKED_FOR_POST = 0x80000000 124 }; 125 126 /* default constructor */ 127 private_module_t(); 128 }; 129 130 #ifdef __cplusplus 131 struct private_handle_t : public native_handle 132 { 133 #else 134 struct private_handle_t 135 { 136 struct native_handle nativeHandle; 137 #endif 138 139 enum 140 { 141 PRIV_FLAGS_FRAMEBUFFER = 0x00000001, 142 PRIV_FLAGS_USES_UMP = 0x00000002, 143 PRIV_FLAGS_USES_ION = 0x00000004, 144 }; 145 146 enum 147 { 148 LOCK_STATE_WRITE = 1 << 31, 149 LOCK_STATE_MAPPED = 1 << 30, 150 LOCK_STATE_UNREGISTERED = 1 << 29, 151 LOCK_STATE_READ_MASK = 0x1FFFFFFF 152 }; 153 154 // ints 155 #if GRALLOC_ARM_DMA_BUF_MODULE 156 /*shared file descriptor for dma_buf sharing*/ 157 int share_fd; 158 #endif 159 int magic; 160 int flags; 161 int usage; 162 int size; 163 int width; 164 int height; 165 int format; 166 int stride; 167 union 168 { 169 void *base; 170 uint64_t padding; 171 }; 172 int lockState; 173 int writeOwner; 174 int pid; 175 176 mali_gralloc_yuv_info yuv_info; 177 178 // Following members are for UMP memory only 179 #if GRALLOC_ARM_UMP_MODULE 180 int ump_id; 181 int ump_mem_handle; 182 #endif 183 184 // Following members is for framebuffer only 185 int shallow_fbdev_fd; // shallow copy, not dup'ed 186 int offset; 187 188 #if GRALLOC_ARM_DMA_BUF_MODULE 189 ion_user_handle_t ion_hnd_UNUSED; 190 #endif 191 192 #if GRALLOC_ARM_DMA_BUF_MODULE 193 #define GRALLOC_ARM_NUM_FDS 1 194 #else 195 #define GRALLOC_ARM_NUM_FDS 0 196 #endif 197 198 #ifdef __cplusplus 199 static const int sNumFds = GRALLOC_ARM_NUM_FDS; 200 static const int sMagic = 0x3141592; 201 202 #if GRALLOC_ARM_UMP_MODULE 203 private_handle_t(int flags, int usage, int size, void *base, int lock_state, ump_secure_id secure_id, ump_handle handle): 204 #if GRALLOC_ARM_DMA_BUF_MODULE 205 share_fd(-1), 206 #endif 207 magic(sMagic), 208 flags(flags), 209 usage(usage), 210 size(size), 211 width(0), 212 height(0), 213 format(0), 214 stride(0), 215 base(base), 216 lockState(lock_state), 217 writeOwner(0), 218 pid(getpid()), 219 yuv_info(MALI_YUV_NO_INFO), 220 ump_id((int)secure_id), 221 ump_mem_handle((int)handle), 222 shallow_fbdev_fd(0), 223 offset(0) 224 #if GRALLOC_ARM_DMA_BUF_MODULE 225 , 226 ion_hnd_UNUSED(ION_INVALID_HANDLE) 227 #endif 228 229 { 230 version = sizeof(native_handle); 231 numFds = sNumFds; 232 numInts = (sizeof(private_handle_t) - sizeof(native_handle)) / sizeof(int) - sNumFds; 233 } 234 #endif 235 236 #if GRALLOC_ARM_DMA_BUF_MODULE 237 private_handle_t(int flags, int usage, int size, void *base, int lock_state): 238 share_fd(-1), 239 magic(sMagic), 240 flags(flags), 241 usage(usage), 242 size(size), 243 width(0), 244 height(0), 245 format(0), 246 stride(0), 247 base(base), 248 lockState(lock_state), 249 writeOwner(0), 250 pid(getpid()), 251 yuv_info(MALI_YUV_NO_INFO), 252 #if GRALLOC_ARM_UMP_MODULE 253 ump_id((int)UMP_INVALID_SECURE_ID), 254 ump_mem_handle((int)UMP_INVALID_MEMORY_HANDLE), 255 #endif 256 shallow_fbdev_fd(0), 257 offset(0), 258 ion_hnd_UNUSED(ION_INVALID_HANDLE) 259 260 { 261 version = sizeof(native_handle); 262 numFds = sNumFds; 263 numInts = (sizeof(private_handle_t) - sizeof(native_handle)) / sizeof(int) - sNumFds; 264 } 265 266 #endif 267 268 private_handle_t(int flags, int usage, int size, void *base, int lock_state, int fb_file, int fb_offset): 269 #if GRALLOC_ARM_DMA_BUF_MODULE 270 share_fd(-1), 271 #endif 272 magic(sMagic), 273 flags(flags), 274 usage(usage), 275 size(size), 276 width(0), 277 height(0), 278 format(0), 279 stride(0), 280 base(base), 281 lockState(lock_state), 282 writeOwner(0), 283 pid(getpid()), 284 yuv_info(MALI_YUV_NO_INFO), 285 #if GRALLOC_ARM_UMP_MODULE 286 ump_id((int)UMP_INVALID_SECURE_ID), 287 ump_mem_handle((int)UMP_INVALID_MEMORY_HANDLE), 288 #endif 289 shallow_fbdev_fd(fb_file), 290 offset(fb_offset) 291 #if GRALLOC_ARM_DMA_BUF_MODULE 292 , 293 ion_hnd_UNUSED(ION_INVALID_HANDLE) 294 #endif 295 296 { 297 version = sizeof(native_handle); 298 numFds = sNumFds; 299 numInts = (sizeof(private_handle_t) - sizeof(native_handle)) / sizeof(int) - sNumFds; 300 } 301 302 ~private_handle_t() 303 { 304 magic = 0; 305 } 306 307 bool usesPhysicallyContiguousMemory() 308 { 309 return (flags & PRIV_FLAGS_FRAMEBUFFER) ? true : false; 310 } 311 312 static int validate(const native_handle *h) 313 { 314 const private_handle_t *hnd = (const private_handle_t *)h; 315 316 if (!h || h->version != sizeof(native_handle) || hnd->magic != sMagic) 317 { 318 return -EINVAL; 319 } 320 321 int numFds = sNumFds; 322 int numInts = (sizeof(private_handle_t) - sizeof(native_handle)) / sizeof(int) - sNumFds; 323 #if GRALLOC_ARM_DMA_BUF_MODULE 324 if (hnd->share_fd < 0) { 325 numFds--; 326 numInts++; 327 } 328 #endif 329 330 if (h->numFds != numFds || h->numInts != numInts) 331 { 332 return -EINVAL; 333 } 334 335 return 0; 336 } 337 338 static private_handle_t *dynamicCast(const native_handle *in) 339 { 340 if (validate(in) == 0) 341 { 342 return (private_handle_t *) in; 343 } 344 345 return NULL; 346 } 347 #endif 348 }; 349 350 #endif /* GRALLOC_PRIV_H_ */ 351
