1 /* 2 ** Copyright (c) 2011-2012 The Linux Foundation. All rights reserved. 3 ** 4 ** Licensed under the Apache License, Version 2.0 (the "License"); 5 ** you may not use this file except in compliance with the License. 6 ** You may obtain a copy of the License at 7 ** 8 ** http://www.apache.org/licenses/LICENSE-2.0 9 ** 10 ** Unless required by applicable law or agreed to in writing, software 11 ** distributed under the License is distributed on an "AS IS" BASIS, 12 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 ** See the License for the specific language governing permissions and 14 ** limitations under the License. 15 */ 16 17 /*#error uncomment this for compiler test!*/ 18 19 //#define LOG_NDEBUG 0 20 #define LOG_NIDEBUG 0 21 #define LOG_TAG "QCameraHWI_Mem" 22 #include <utils/Log.h> 23 24 #include <utils/Errors.h> 25 #include <utils/threads.h> 26 #include <binder/MemoryHeapPmem.h> 27 #include <utils/String16.h> 28 #include <sys/types.h> 29 #include <sys/stat.h> 30 #include <unistd.h> 31 #include <fcntl.h> 32 #include <cutils/properties.h> 33 #include <math.h> 34 #if HAVE_ANDROID_OS 35 #include <linux/android_pmem.h> 36 #endif 37 #include <linux/ioctl.h> 38 #include <camera/CameraParameters.h> 39 #include <media/mediarecorder.h> 40 #include <gralloc_priv.h> 41 42 #include "QCameraHWI_Mem.h" 43 44 #define CAMERA_HAL_UNUSED(expr) do { (void)(expr); } while (0) 45 46 /* QCameraHardwareInterface class implementation goes here*/ 47 /* following code implement the contol logic of this class*/ 48 49 namespace android { 50 51 52 static bool register_buf(int size, 53 int frame_size, 54 int cbcr_offset, 55 int yoffset, 56 int pmempreviewfd, 57 uint32_t offset, 58 uint8_t *buf, 59 int pmem_type, 60 bool vfe_can_write, 61 bool register_buffer = true); 62 63 #if 0 64 MMCameraDL::MMCameraDL(){ 65 LOGV("MMCameraDL: E"); 66 libmmcamera = NULL; 67 #if DLOPEN_LIBMMCAMERA 68 libmmcamera = ::dlopen("liboemcamera.so", RTLD_NOW); 69 #endif 70 LOGV("Open MM camera DL libeomcamera loaded at %p ", libmmcamera); 71 LOGV("MMCameraDL: X"); 72 } 73 74 void * MMCameraDL::pointer(){ 75 return libmmcamera; 76 } 77 78 MMCameraDL::~MMCameraDL(){ 79 LOGV("~MMCameraDL: E"); 80 LINK_mm_camera_destroy(); 81 if (libmmcamera != NULL) { 82 ::dlclose(libmmcamera); 83 LOGV("closed MM Camera DL "); 84 } 85 libmmcamera = NULL; 86 LOGV("~MMCameraDL: X"); 87 } 88 89 90 wp<MMCameraDL> MMCameraDL::instance; 91 Mutex MMCameraDL::singletonLock; 92 93 94 sp<MMCameraDL> MMCameraDL::getInstance(){ 95 Mutex::Autolock instanceLock(singletonLock); 96 sp<MMCameraDL> mmCamera = instance.promote(); 97 if(mmCamera == NULL){ 98 mmCamera = new MMCameraDL(); 99 instance = mmCamera; 100 } 101 return mmCamera; 102 } 103 #endif 104 105 MemPool::MemPool(int buffer_size, int num_buffers, 106 int frame_size, 107 const char *name) : 108 mBufferSize(buffer_size), 109 mNumBuffers(num_buffers), 110 mFrameSize(frame_size), 111 mBuffers(NULL), mName(name) 112 { 113 int page_size_minus_1 = getpagesize() - 1; 114 mAlignedBufferSize = (buffer_size + page_size_minus_1) & (~page_size_minus_1); 115 } 116 117 void MemPool::completeInitialization() 118 { 119 // If we do not know how big the frame will be, we wait to allocate 120 // the buffers describing the individual frames until we do know their 121 // size. 122 123 if (mFrameSize > 0) { 124 mBuffers = new sp<MemoryBase>[mNumBuffers]; 125 for (int i = 0; i < mNumBuffers; i++) { 126 mBuffers[i] = new 127 MemoryBase(mHeap, 128 i * mAlignedBufferSize, 129 mFrameSize); 130 } 131 } 132 } 133 134 AshmemPool::AshmemPool(int buffer_size, int num_buffers, 135 int frame_size, 136 const char *name) : 137 MemPool(buffer_size, 138 num_buffers, 139 frame_size, 140 name) 141 { 142 LOGV("constructing MemPool %s backed by ashmem: " 143 "%d frames @ %d uint8_ts, " 144 "buffer size %d", 145 mName, 146 num_buffers, frame_size, buffer_size); 147 148 int page_mask = getpagesize() - 1; 149 int ashmem_size = buffer_size * num_buffers; 150 ashmem_size += page_mask; 151 ashmem_size &= ~page_mask; 152 153 mHeap = new MemoryHeapBase(ashmem_size); 154 155 completeInitialization(); 156 } 157 158 static bool register_buf(int size, 159 int frame_size, 160 int cbcr_offset, 161 int yoffset, 162 int pmempreviewfd, 163 uint32_t offset, 164 uint8_t *buf, 165 int pmem_type, 166 bool vfe_can_write, 167 bool register_buffer) 168 { 169 struct msm_pmem_info pmemBuf; 170 CAMERA_HAL_UNUSED(frame_size); 171 172 pmemBuf.type = pmem_type; 173 pmemBuf.fd = pmempreviewfd; 174 pmemBuf.offset = offset; 175 pmemBuf.len = size; 176 pmemBuf.vaddr = buf; 177 pmemBuf.y_off = yoffset; 178 pmemBuf.cbcr_off = cbcr_offset; 179 180 pmemBuf.active = vfe_can_write; 181 182 LOGV("register_buf: reg = %d buffer = %p", 183 !register_buffer, buf); 184 /*TODO*/ 185 /*if(native_start_ops(register_buffer ? CAMERA_OPS_REGISTER_BUFFER : 186 CAMERA_OPS_UNREGISTER_BUFFER ,(void *)&pmemBuf) < 0) { 187 LOGE("register_buf: MSM_CAM_IOCTL_(UN)REGISTER_PMEM error %s", 188 strerror(errno)); 189 return false; 190 }*/ 191 192 return true; 193 194 } 195 196 #if 0 197 bool register_record_buffers(bool register_buffer) { 198 LOGI("%s: (%d) E", __FUNCTION__, register_buffer); 199 struct msm_pmem_info pmemBuf; 200 201 for (int cnt = 0; cnt < VIDEO_BUFFER_COUNT; ++cnt) { 202 pmemBuf.type = MSM_PMEM_VIDEO; 203 pmemBuf.fd = mRecordHeap->mHeap->getHeapID(); 204 pmemBuf.offset = mRecordHeap->mAlignedBufferSize * cnt; 205 pmemBuf.len = mRecordHeap->mBufferSize; 206 pmemBuf.vaddr = (uint8_t *)mRecordHeap->mHeap->base() + mRecordHeap->mAlignedBufferSize * cnt; 207 pmemBuf.y_off = 0; 208 pmemBuf.cbcr_off = recordframes[0].cbcr_off; 209 if(register_buffer == true) { 210 pmemBuf.active = (cnt<ACTIVE_VIDEO_BUFFERS); 211 if( (mVpeEnabled) && (cnt == kRecordBufferCount-1)) { 212 pmemBuf.type = MSM_PMEM_VIDEO_VPE; 213 pmemBuf.active = 1; 214 } 215 } else { 216 pmemBuf.active = false; 217 } 218 219 LOGV("register_buf: reg = %d buffer = %p", !register_buffer, 220 (void *)pmemBuf.vaddr); 221 if(native_start_ops(register_buffer ? CAMERA_OPS_REGISTER_BUFFER : 222 CAMERA_OPS_UNREGISTER_BUFFER ,(void *)&pmemBuf) < 0) { 223 LOGE("register_buf: MSM_CAM_IOCTL_(UN)REGISTER_PMEM error %s", 224 strerror(errno)); 225 return false; 226 } 227 } 228 return true; 229 } 230 #endif 231 PmemPool::PmemPool(const char *pmem_pool, 232 int flags, 233 int pmem_type, 234 int buffer_size, int num_buffers, 235 int frame_size, int cbcr_offset, 236 int yOffset, const char *name) : 237 MemPool(buffer_size,num_buffers,frame_size,name), 238 mPmemType(pmem_type), 239 mCbCrOffset(cbcr_offset), 240 myOffset(yOffset) 241 { 242 LOGI("constructing MemPool %s backed by pmem pool %s: " 243 "%d frames @ %d bytes, buffer size %d", 244 mName, 245 pmem_pool, num_buffers, frame_size, 246 buffer_size); 247 248 //mMMCameraDLRef = MMCameraDL::getInstance(); 249 250 251 // Make a new mmap'ed heap that can be shared across processes. 252 // mAlignedBufferSize is already in 4k aligned. (do we need total size necessary to be in power of 2??) 253 mAlignedSize = mAlignedBufferSize * num_buffers; 254 255 sp<MemoryHeapBase> masterHeap = 256 new MemoryHeapBase(pmem_pool, mAlignedSize, flags); 257 258 if (masterHeap->getHeapID() < 0) { 259 LOGE("failed to construct master heap for pmem pool %s", pmem_pool); 260 masterHeap.clear(); 261 return; 262 } 263 264 sp<MemoryHeapPmem> pmemHeap = new MemoryHeapPmem(masterHeap, flags); 265 if (pmemHeap->getHeapID() >= 0) { 266 pmemHeap->slap(); 267 masterHeap.clear(); 268 mHeap = pmemHeap; 269 pmemHeap.clear(); 270 271 mFd = mHeap->getHeapID(); 272 if (::ioctl(mFd, PMEM_GET_SIZE, &mSize)) { 273 LOGE("pmem pool %s ioctl(PMEM_GET_SIZE) error %s (%d)", 274 pmem_pool, 275 ::strerror(errno), errno); 276 mHeap.clear(); 277 return; 278 } 279 280 LOGE("pmem pool %s ioctl(fd = %d, PMEM_GET_SIZE) is %ld", 281 pmem_pool, 282 mFd, 283 mSize.len); 284 LOGE("mBufferSize=%d, mAlignedBufferSize=%d\n", mBufferSize, mAlignedBufferSize); 285 286 #if 0 287 // Unregister preview buffers with the camera drivers. Allow the VFE to write 288 // to all preview buffers except for the last one. 289 // Only Register the preview, snapshot and thumbnail buffers with the kernel. 290 if( (strcmp("postview", mName) != 0) ){ 291 int num_buf = num_buffers; 292 if(!strcmp("preview", mName)) num_buf = kPreviewBufferCount; 293 LOGD("num_buffers = %d", num_buf); 294 for (int cnt = 0; cnt < num_buf; ++cnt) { 295 int active = 1; 296 if(pmem_type == MSM_PMEM_VIDEO){ 297 active = (cnt<ACTIVE_VIDEO_BUFFERS); 298 //When VPE is enabled, set the last record 299 //buffer as active and pmem type as PMEM_VIDEO_VPE 300 //as this is a requirement from VPE operation. 301 //No need to set this pmem type to VIDEO_VPE while unregistering, 302 //because as per camera stack design: "the VPE AXI is also configured 303 //when VFE is configured for VIDEO, which is as part of preview 304 //initialization/start. So during this VPE AXI config camera stack 305 //will lookup the PMEM_VIDEO_VPE buffer and give it as o/p of VPE and 306 //change it's type to PMEM_VIDEO". 307 if( (mVpeEnabled) && (cnt == kRecordBufferCount-1)) { 308 active = 1; 309 pmem_type = MSM_PMEM_VIDEO_VPE; 310 } 311 LOGV(" pmempool creating video buffers : active %d ", active); 312 } 313 else if (pmem_type == MSM_PMEM_PREVIEW){ 314 active = (cnt < ACTIVE_PREVIEW_BUFFERS); 315 } 316 else if ((pmem_type == MSM_PMEM_MAINIMG) 317 || (pmem_type == MSM_PMEM_THUMBNAIL)){ 318 active = (cnt < ACTIVE_ZSL_BUFFERS); 319 } 320 register_buf(mBufferSize, 321 mFrameSize, mCbCrOffset, myOffset, 322 mHeap->getHeapID(), 323 mAlignedBufferSize * cnt, 324 (uint8_t *)mHeap->base() + mAlignedBufferSize * cnt, 325 pmem_type, 326 active); 327 } 328 } 329 #endif 330 completeInitialization(); 331 } 332 else LOGE("pmem pool %s error: could not create master heap!", 333 pmem_pool); 334 LOGI("%s: (%s) X ", __FUNCTION__, mName); 335 } 336 337 PmemPool::~PmemPool() 338 { 339 LOGI("%s: %s E", __FUNCTION__, mName); 340 #if 0 341 if (mHeap != NULL) { 342 // Unregister preview buffers with the camera drivers. 343 // Only Unregister the preview, snapshot and thumbnail 344 // buffers with the kernel. 345 if( (strcmp("postview", mName) != 0) ){ 346 int num_buffers = mNumBuffers; 347 if(!strcmp("preview", mName)) num_buffers = PREVIEW_BUFFER_COUNT; 348 for (int cnt = 0; cnt < num_buffers; ++cnt) { 349 register_buf(mBufferSize, 350 mFrameSize, 351 mCbCrOffset, 352 myOffset, 353 mHeap->getHeapID(), 354 mAlignedBufferSize * cnt, 355 (uint8_t *)mHeap->base() + mAlignedBufferSize * cnt, 356 mPmemType, 357 false, 358 false /* unregister */); 359 } 360 } 361 } 362 mMMCameraDLRef.clear(); 363 #endif 364 LOGI("%s: %s X", __FUNCTION__, mName); 365 } 366 MemPool::~MemPool() 367 { 368 LOGV("destroying MemPool %s", mName); 369 if (mFrameSize > 0) 370 delete [] mBuffers; 371 mHeap.clear(); 372 LOGV("destroying MemPool %s completed", mName); 373 } 374 375 376 status_t MemPool::dump(int fd, const Vector<String16>& args) const 377 { 378 const size_t SIZE = 256; 379 char buffer[SIZE]; 380 String8 result; 381 CAMERA_HAL_UNUSED(args); 382 snprintf(buffer, 255, "QualcommCameraHardware::AshmemPool::dump\n"); 383 result.append(buffer); 384 if (mName) { 385 snprintf(buffer, 255, "mem pool name (%s)\n", mName); 386 result.append(buffer); 387 } 388 if (mHeap != 0) { 389 snprintf(buffer, 255, "heap base(%p), size(%d), flags(%d), device(%s)\n", 390 mHeap->getBase(), mHeap->getSize(), 391 mHeap->getFlags(), mHeap->getDevice()); 392 result.append(buffer); 393 } 394 snprintf(buffer, 255, 395 "buffer size (%d), number of buffers (%d), frame size(%d)", 396 mBufferSize, mNumBuffers, mFrameSize); 397 result.append(buffer); 398 write(fd, result.string(), result.size()); 399 return NO_ERROR; 400 } 401 402 }; 403
