1/* 2 * Copyright (C) 2010 The Android Open Source Project 3 * Copyright (C) 2012-2013, The Linux Foundation. All rights reserved. 4 * 5 * Not a Contribution, Apache license notifications and license are retained 6 * for attribution purposes only. 7 * 8 * Licensed under the Apache License, Version 2.0 (the "License"); 9 * you may not use this file except in compliance with the License. 10 * You may obtain a copy of the License at 11 * 12 * http://www.apache.org/licenses/LICENSE-2.0 13 * 14 * Unless required by applicable law or agreed to in writing, software 15 * distributed under the License is distributed on an "AS IS" BASIS, 16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 17 * See the License for the specific language governing permissions and 18 * limitations under the License. 19 */ 20#define ATRACE_TAG (ATRACE_TAG_GRAPHICS | ATRACE_TAG_HAL) 21#include <fcntl.h> 22#include <errno.h> 23 24#include <cutils/log.h> 25#include <cutils/atomic.h> 26#include <EGL/egl.h> 27#include <utils/Trace.h> 28#include <sys/ioctl.h> 29#include <overlay.h> 30#include <overlayRotator.h> 31#include <mdp_version.h> 32#include "hwc_utils.h" 33#include "hwc_fbupdate.h" 34#include "hwc_mdpcomp.h" 35#include "external.h" 36#include "hwc_copybit.h" 37#include "profiler.h" 38 39using namespace qhwc; 40#define VSYNC_DEBUG 0 41#define BLANK_DEBUG 0 42 43static int hwc_device_open(const struct hw_module_t* module, 44 const char* name, 45 struct hw_device_t** device); 46 47static struct hw_module_methods_t hwc_module_methods = { 48 open: hwc_device_open 49}; 50 51hwc_module_t HAL_MODULE_INFO_SYM = { 52 common: { 53 tag: HARDWARE_MODULE_TAG, 54 version_major: 2, 55 version_minor: 0, 56 id: HWC_HARDWARE_MODULE_ID, 57 name: "Qualcomm Hardware Composer Module", 58 author: "CodeAurora Forum", 59 methods: &hwc_module_methods, 60 dso: 0, 61 reserved: {0}, 62 } 63}; 64 65/* 66 * Save callback functions registered to HWC 67 */ 68static void hwc_registerProcs(struct hwc_composer_device_1* dev, 69 hwc_procs_t const* procs) 70{ 71 ALOGI("%s", __FUNCTION__); 72 hwc_context_t* ctx = (hwc_context_t*)(dev); 73 if(!ctx) { 74 ALOGE("%s: Invalid context", __FUNCTION__); 75 return; 76 } 77 ctx->proc = procs; 78 79 // Now that we have the functions needed, kick off 80 // the uevent & vsync threads 81 init_uevent_thread(ctx); 82 init_vsync_thread(ctx); 83} 84 85//Helper 86static void reset(hwc_context_t *ctx, int numDisplays, 87 hwc_display_contents_1_t** displays) { 88 memset(ctx->listStats, 0, sizeof(ctx->listStats)); 89 for(int i = 0; i < MAX_DISPLAYS; i++) { 90 hwc_display_contents_1_t *list = displays[i]; 91 // XXX:SurfaceFlinger no longer guarantees that this 92 // value is reset on every prepare. However, for the layer 93 // cache we need to reset it. 94 // We can probably rethink that later on 95 if (LIKELY(list && list->numHwLayers > 1)) { 96 for(uint32_t j = 0; j < list->numHwLayers; j++) { 97 if(list->hwLayers[j].compositionType != HWC_FRAMEBUFFER_TARGET) 98 list->hwLayers[j].compositionType = HWC_FRAMEBUFFER; 99 } 100 } 101 102 if(ctx->mFBUpdate[i]) 103 ctx->mFBUpdate[i]->reset(); 104 if(ctx->mCopyBit[i]) 105 ctx->mCopyBit[i]->reset(); 106 if(ctx->mLayerRotMap[i]) 107 ctx->mLayerRotMap[i]->reset(); 108 } 109} 110 111//clear prev layer prop flags and realloc for current frame 112static void reset_layer_prop(hwc_context_t* ctx, int dpy, int numAppLayers) { 113 if(ctx->layerProp[dpy]) { 114 delete[] ctx->layerProp[dpy]; 115 ctx->layerProp[dpy] = NULL; 116 } 117 ctx->layerProp[dpy] = new LayerProp[numAppLayers]; 118} 119 120static int display_commit(hwc_context_t *ctx, int dpy) { 121 int fbFd = ctx->dpyAttr[dpy].fd; 122 if(fbFd == -1) { 123 ALOGE("%s: Invalid FB fd for display: %d", __FUNCTION__, dpy); 124 return -1; 125 } 126 127 struct mdp_display_commit commit_info; 128 memset(&commit_info, 0, sizeof(struct mdp_display_commit)); 129 commit_info.flags = MDP_DISPLAY_COMMIT_OVERLAY; 130 if(ioctl(fbFd, MSMFB_DISPLAY_COMMIT, &commit_info) == -1) { 131 ALOGE("%s: MSMFB_DISPLAY_COMMIT for primary failed", __FUNCTION__); 132 return -errno; 133 } 134 return 0; 135} 136 137static int hwc_prepare_primary(hwc_composer_device_1 *dev, 138 hwc_display_contents_1_t *list) { 139 hwc_context_t* ctx = (hwc_context_t*)(dev); 140 const int dpy = HWC_DISPLAY_PRIMARY; 141 if(UNLIKELY(!ctx->mBasePipeSetup)) 142 setupBasePipe(ctx); 143 if (LIKELY(list && list->numHwLayers > 1) && 144 ctx->dpyAttr[dpy].isActive) { 145 reset_layer_prop(ctx, dpy, list->numHwLayers - 1); 146 uint32_t last = list->numHwLayers - 1; 147 hwc_layer_1_t *fbLayer = &list->hwLayers[last]; 148 if(fbLayer->handle) { 149 setListStats(ctx, list, dpy); 150 int fbZOrder = ctx->mMDPComp[dpy]->prepare(ctx, list); 151 if(fbZOrder >= 0) 152 ctx->mFBUpdate[dpy]->prepare(ctx, list, fbZOrder); 153 154 /* Temporarily commenting out C2D until we support partial 155 copybit composition for mixed mode MDP 156 157 // Use Copybit, when MDP comp fails 158 if((fbZOrder >= 0) && ctx->mCopyBit[dpy]) 159 ctx->mCopyBit[dpy]->prepare(ctx, list, dpy); 160 */ 161 } 162 } 163 return 0; 164} 165 166static int hwc_prepare_external(hwc_composer_device_1 *dev, 167 hwc_display_contents_1_t *list, int dpy) { 168 hwc_context_t* ctx = (hwc_context_t*)(dev); 169 170 if (LIKELY(list && list->numHwLayers > 1) && 171 ctx->dpyAttr[dpy].isActive && 172 ctx->dpyAttr[dpy].connected) { 173 reset_layer_prop(ctx, dpy, list->numHwLayers - 1); 174 uint32_t last = list->numHwLayers - 1; 175 hwc_layer_1_t *fbLayer = &list->hwLayers[last]; 176 if(!ctx->dpyAttr[dpy].isPause) { 177 if(fbLayer->handle) { 178 ctx->mExtDispConfiguring = false; 179 setListStats(ctx, list, dpy); 180 int fbZOrder = ctx->mMDPComp[dpy]->prepare(ctx, list); 181 if(fbZOrder >= 0) 182 ctx->mFBUpdate[dpy]->prepare(ctx, list, fbZOrder); 183 184 /* Temporarily commenting out C2D until we support partial 185 copybit composition for mixed mode MDP 186 187 if((fbZOrder >= 0) && ctx->mCopyBit[dpy]) 188 ctx->mCopyBit[dpy]->prepare(ctx, list, dpy); 189 */ 190 } 191 } else { 192 // External Display is in Pause state. 193 // ToDo: 194 // Mark all application layers as OVERLAY so that 195 // GPU will not compose. This is done for power 196 // optimization 197 } 198 } 199 return 0; 200} 201 202static int hwc_prepare_virtual(hwc_composer_device_1 *dev, 203 hwc_display_contents_1_t *list, int dpy) { 204 //XXX: Fix when framework support is added 205 return 0; 206} 207 208static int hwc_prepare(hwc_composer_device_1 *dev, size_t numDisplays, 209 hwc_display_contents_1_t** displays) 210{ 211 int ret = 0; 212 hwc_context_t* ctx = (hwc_context_t*)(dev); 213 Locker::Autolock _l(ctx->mBlankLock); 214 reset(ctx, numDisplays, displays); 215 216 ctx->mOverlay->configBegin(); 217 ctx->mRotMgr->configBegin(); 218 ctx->mNeedsRotator = false; 219 220 for (int32_t i = numDisplays - 1; i >= 0; i--) { 221 hwc_display_contents_1_t *list = displays[i]; 222 switch(i) { 223 case HWC_DISPLAY_PRIMARY: 224 ret = hwc_prepare_primary(dev, list); 225 break; 226 case HWC_DISPLAY_EXTERNAL: 227 ret = hwc_prepare_external(dev, list, i); 228 break; 229 case HWC_DISPLAY_VIRTUAL: 230 ret = hwc_prepare_virtual(dev, list, i); 231 break; 232 default: 233 ret = -EINVAL; 234 } 235 } 236 237 ctx->mOverlay->configDone(); 238 ctx->mRotMgr->configDone(); 239 240 return ret; 241} 242 243static int hwc_eventControl(struct hwc_composer_device_1* dev, int dpy, 244 int event, int enable) 245{ 246 int ret = 0; 247 hwc_context_t* ctx = (hwc_context_t*)(dev); 248 Locker::Autolock _l(ctx->mBlankLock); 249 if(!ctx->dpyAttr[dpy].isActive) { 250 ALOGE("Display is blanked - Cannot %s vsync", 251 enable ? "enable" : "disable"); 252 return -EINVAL; 253 } 254 255 switch(event) { 256 case HWC_EVENT_VSYNC: 257 if (ctx->vstate.enable == enable) 258 break; 259 ret = hwc_vsync_control(ctx, dpy, enable); 260 if(ret == 0) 261 ctx->vstate.enable = !!enable; 262 ALOGD_IF (VSYNC_DEBUG, "VSYNC state changed to %s", 263 (enable)?"ENABLED":"DISABLED"); 264 break; 265 default: 266 ret = -EINVAL; 267 } 268 return ret; 269} 270 271static int hwc_blank(struct hwc_composer_device_1* dev, int dpy, int blank) 272{ 273 ATRACE_CALL(); 274 hwc_context_t* ctx = (hwc_context_t*)(dev); 275 276 Locker::Autolock _l(ctx->mBlankLock); 277 int ret = 0; 278 ALOGD_IF(BLANK_DEBUG, "%s: %s display: %d", __FUNCTION__, 279 blank==1 ? "Blanking":"Unblanking", dpy); 280 if(blank) { 281 // free up all the overlay pipes in use 282 // when we get a blank for either display 283 // makes sure that all pipes are freed 284 ctx->mOverlay->configBegin(); 285 ctx->mOverlay->configDone(); 286 ctx->mRotMgr->clear(); 287 } 288 switch(dpy) { 289 case HWC_DISPLAY_PRIMARY: 290 if(blank) { 291 ret = ioctl(ctx->dpyAttr[dpy].fd, FBIOBLANK, 292 FB_BLANK_POWERDOWN); 293 } else { 294 ret = ioctl(ctx->dpyAttr[dpy].fd, FBIOBLANK,FB_BLANK_UNBLANK); 295 } 296 break; 297 case HWC_DISPLAY_EXTERNAL: 298 case HWC_DISPLAY_VIRTUAL: 299 if(blank) { 300 // call external framebuffer commit on blank, 301 // so that any pipe unsets gets committed 302 if (display_commit(ctx, dpy) < 0) { 303 ret = -1; 304 ALOGE("%s:post failed for external display !! ", 305 __FUNCTION__); 306 } 307 } else { 308 } 309 break; 310 default: 311 return -EINVAL; 312 } 313 // Enable HPD here, as during bootup unblank is called 314 // when SF is completely initialized 315 ctx->mExtDisplay->setHPD(1); 316 if(ret == 0){ 317 ctx->dpyAttr[dpy].isActive = !blank; 318 } else { 319 ALOGE("%s: Failed in %s display: %d error:%s", __FUNCTION__, 320 blank==1 ? "blanking":"unblanking", dpy, strerror(errno)); 321 return ret; 322 } 323 324 ALOGD_IF(BLANK_DEBUG, "%s: Done %s display: %d", __FUNCTION__, 325 blank==1 ? "blanking":"unblanking", dpy); 326 return 0; 327} 328 329static int hwc_query(struct hwc_composer_device_1* dev, 330 int param, int* value) 331{ 332 hwc_context_t* ctx = (hwc_context_t*)(dev); 333 int supported = HWC_DISPLAY_PRIMARY_BIT; 334 335 switch (param) { 336 case HWC_BACKGROUND_LAYER_SUPPORTED: 337 // Not supported for now 338 value[0] = 0; 339 break; 340 case HWC_DISPLAY_TYPES_SUPPORTED: 341 if(ctx->mMDP.hasOverlay) 342 supported |= HWC_DISPLAY_EXTERNAL_BIT; 343 value[0] = supported; 344 break; 345 default: 346 return -EINVAL; 347 } 348 return 0; 349 350} 351 352 353static int hwc_set_primary(hwc_context_t *ctx, hwc_display_contents_1_t* list) { 354 ATRACE_CALL(); 355 int ret = 0; 356 const int dpy = HWC_DISPLAY_PRIMARY; 357 358 if (LIKELY(list) && ctx->dpyAttr[dpy].isActive) { 359 uint32_t last = list->numHwLayers - 1; 360 hwc_layer_1_t *fbLayer = &list->hwLayers[last]; 361 int fd = -1; //FenceFD from the Copybit(valid in async mode) 362 bool copybitDone = false; 363 if(ctx->mCopyBit[dpy]) 364 copybitDone = ctx->mCopyBit[dpy]->draw(ctx, list, dpy, &fd); 365 if(list->numHwLayers > 1) 366 hwc_sync(ctx, list, dpy, fd); 367 368 if (!ctx->mMDPComp[dpy]->draw(ctx, list)) { 369 ALOGE("%s: MDPComp draw failed", __FUNCTION__); 370 ret = -1; 371 } 372 373 //TODO We dont check for SKIP flag on this layer because we need PAN 374 //always. Last layer is always FB 375 private_handle_t *hnd = (private_handle_t *)fbLayer->handle; 376 if(copybitDone) { 377 hnd = ctx->mCopyBit[dpy]->getCurrentRenderBuffer(); 378 } 379 380 if(hnd) { 381 if (!ctx->mFBUpdate[dpy]->draw(ctx, hnd)) { 382 ALOGE("%s: FBUpdate draw failed", __FUNCTION__); 383 ret = -1; 384 } 385 } 386 387 if (display_commit(ctx, dpy) < 0) { 388 ALOGE("%s: display commit fail!", __FUNCTION__); 389 return -1; 390 } 391 } 392 393 closeAcquireFds(list); 394 return ret; 395} 396 397static int hwc_set_external(hwc_context_t *ctx, 398 hwc_display_contents_1_t* list, int dpy) 399{ 400 ATRACE_CALL(); 401 int ret = 0; 402 Locker::Autolock _l(ctx->mExtSetLock); 403 404 if (LIKELY(list) && ctx->dpyAttr[dpy].isActive && 405 !ctx->dpyAttr[dpy].isPause && 406 ctx->dpyAttr[dpy].connected) { 407 uint32_t last = list->numHwLayers - 1; 408 hwc_layer_1_t *fbLayer = &list->hwLayers[last]; 409 int fd = -1; //FenceFD from the Copybit(valid in async mode) 410 bool copybitDone = false; 411 if(ctx->mCopyBit[dpy]) 412 copybitDone = ctx->mCopyBit[dpy]->draw(ctx, list, dpy, &fd); 413 414 if(list->numHwLayers > 1) 415 hwc_sync(ctx, list, dpy, fd); 416 417 if (!ctx->mMDPComp[dpy]->draw(ctx, list)) { 418 ALOGE("%s: MDPComp draw failed", __FUNCTION__); 419 ret = -1; 420 } 421 422 private_handle_t *hnd = (private_handle_t *)fbLayer->handle; 423 if(copybitDone) { 424 hnd = ctx->mCopyBit[dpy]->getCurrentRenderBuffer(); 425 } 426 427 if(hnd) { 428 if (!ctx->mFBUpdate[dpy]->draw(ctx, hnd)) { 429 ALOGE("%s: FBUpdate::draw fail!", __FUNCTION__); 430 ret = -1; 431 } 432 } 433 434 if (display_commit(ctx, dpy) < 0) { 435 ALOGE("%s: display commit fail!", __FUNCTION__); 436 ret = -1; 437 } 438 } 439 440 closeAcquireFds(list); 441 return ret; 442} 443 444static int hwc_set_virtual(hwc_context_t *ctx, 445 hwc_display_contents_1_t* list, int dpy) 446{ 447 //XXX: Implement set. 448 closeAcquireFds(list); 449 if (list) { 450 // SF assumes HWC waits for the acquire fence and returns a new fence 451 // that signals when we're done. Since we don't wait, and also don't 452 // touch the buffer, we can just handle the acquire fence back to SF 453 // as the retire fence. 454 list->retireFenceFd = list->outbufAcquireFenceFd; 455 } 456 return 0; 457} 458 459 460static int hwc_set(hwc_composer_device_1 *dev, 461 size_t numDisplays, 462 hwc_display_contents_1_t** displays) 463{ 464 int ret = 0; 465 hwc_context_t* ctx = (hwc_context_t*)(dev); 466 Locker::Autolock _l(ctx->mBlankLock); 467 for (uint32_t i = 0; i < numDisplays; i++) { 468 hwc_display_contents_1_t* list = displays[i]; 469 switch(i) { 470 case HWC_DISPLAY_PRIMARY: 471 ret = hwc_set_primary(ctx, list); 472 break; 473 case HWC_DISPLAY_EXTERNAL: 474 ret = hwc_set_external(ctx, list, i); 475 break; 476 case HWC_DISPLAY_VIRTUAL: 477 ret = hwc_set_virtual(ctx, list, i); 478 break; 479 default: 480 ret = -EINVAL; 481 } 482 } 483 // This is only indicative of how many times SurfaceFlinger posts 484 // frames to the display. 485 CALC_FPS(); 486 MDPComp::resetIdleFallBack(); 487 return ret; 488} 489 490int hwc_getDisplayConfigs(struct hwc_composer_device_1* dev, int disp, 491 uint32_t* configs, size_t* numConfigs) { 492 int ret = 0; 493 hwc_context_t* ctx = (hwc_context_t*)(dev); 494 //in 1.1 there is no way to choose a config, report as config id # 0 495 //This config is passed to getDisplayAttributes. Ignore for now. 496 switch(disp) { 497 case HWC_DISPLAY_PRIMARY: 498 if(*numConfigs > 0) { 499 configs[0] = 0; 500 *numConfigs = 1; 501 } 502 ret = 0; //NO_ERROR 503 break; 504 case HWC_DISPLAY_EXTERNAL: 505 ret = -1; //Not connected 506 if(ctx->dpyAttr[HWC_DISPLAY_EXTERNAL].connected) { 507 ret = 0; //NO_ERROR 508 if(*numConfigs > 0) { 509 configs[0] = 0; 510 *numConfigs = 1; 511 } 512 } 513 break; 514 } 515 return ret; 516} 517 518int hwc_getDisplayAttributes(struct hwc_composer_device_1* dev, int disp, 519 uint32_t config, const uint32_t* attributes, int32_t* values) { 520 521 hwc_context_t* ctx = (hwc_context_t*)(dev); 522 //If hotpluggable displays are inactive return error 523 if(disp == HWC_DISPLAY_EXTERNAL && !ctx->dpyAttr[disp].connected) { 524 return -1; 525 } 526 527 //From HWComposer 528 static const uint32_t DISPLAY_ATTRIBUTES[] = { 529 HWC_DISPLAY_VSYNC_PERIOD, 530 HWC_DISPLAY_WIDTH, 531 HWC_DISPLAY_HEIGHT, 532 HWC_DISPLAY_DPI_X, 533 HWC_DISPLAY_DPI_Y, 534 HWC_DISPLAY_NO_ATTRIBUTE, 535 }; 536 537 const int NUM_DISPLAY_ATTRIBUTES = (sizeof(DISPLAY_ATTRIBUTES) / 538 sizeof(DISPLAY_ATTRIBUTES)[0]); 539 540 for (size_t i = 0; i < NUM_DISPLAY_ATTRIBUTES - 1; i++) { 541 switch (attributes[i]) { 542 case HWC_DISPLAY_VSYNC_PERIOD: 543 values[i] = ctx->dpyAttr[disp].vsync_period; 544 break; 545 case HWC_DISPLAY_WIDTH: 546 values[i] = ctx->dpyAttr[disp].xres; 547 ALOGD("%s disp = %d, width = %d",__FUNCTION__, disp, 548 ctx->dpyAttr[disp].xres); 549 break; 550 case HWC_DISPLAY_HEIGHT: 551 values[i] = ctx->dpyAttr[disp].yres; 552 ALOGD("%s disp = %d, height = %d",__FUNCTION__, disp, 553 ctx->dpyAttr[disp].yres); 554 break; 555 case HWC_DISPLAY_DPI_X: 556 values[i] = (int32_t) (ctx->dpyAttr[disp].xdpi*1000.0); 557 break; 558 case HWC_DISPLAY_DPI_Y: 559 values[i] = (int32_t) (ctx->dpyAttr[disp].ydpi*1000.0); 560 break; 561 default: 562 ALOGE("Unknown display attribute %d", 563 attributes[i]); 564 return -EINVAL; 565 } 566 } 567 return 0; 568} 569 570void hwc_dump(struct hwc_composer_device_1* dev, char *buff, int buff_len) 571{ 572 hwc_context_t* ctx = (hwc_context_t*)(dev); 573 android::String8 aBuf(""); 574 dumpsys_log(aBuf, "Qualcomm HWC state:\n"); 575 dumpsys_log(aBuf, " MDPVersion=%d\n", ctx->mMDP.version); 576 dumpsys_log(aBuf, " DisplayPanel=%c\n", ctx->mMDP.panel); 577 for(int dpy = 0; dpy < MAX_DISPLAYS; dpy++) { 578 if(ctx->mMDPComp[dpy]) 579 ctx->mMDPComp[dpy]->dump(aBuf); 580 } 581 char ovDump[2048] = {'\0'}; 582 ctx->mOverlay->getDump(ovDump, 2048); 583 dumpsys_log(aBuf, ovDump); 584 ovDump[0] = '\0'; 585 ctx->mRotMgr->getDump(ovDump, 2048); 586 dumpsys_log(aBuf, ovDump); 587 strlcpy(buff, aBuf.string(), buff_len); 588} 589 590static int hwc_device_close(struct hw_device_t *dev) 591{ 592 if(!dev) { 593 ALOGE("%s: NULL device pointer", __FUNCTION__); 594 return -1; 595 } 596 closeContext((hwc_context_t*)dev); 597 free(dev); 598 599 return 0; 600} 601 602static int hwc_device_open(const struct hw_module_t* module, const char* name, 603 struct hw_device_t** device) 604{ 605 int status = -EINVAL; 606 607 if (!strcmp(name, HWC_HARDWARE_COMPOSER)) { 608 struct hwc_context_t *dev; 609 dev = (hwc_context_t*)malloc(sizeof(*dev)); 610 memset(dev, 0, sizeof(*dev)); 611 612 //Initialize hwc context 613 initContext(dev); 614 615 //Setup HWC methods 616 dev->device.common.tag = HARDWARE_DEVICE_TAG; 617 dev->device.common.version = HWC_DEVICE_API_VERSION_1_2; 618 dev->device.common.module = const_cast<hw_module_t*>(module); 619 dev->device.common.close = hwc_device_close; 620 dev->device.prepare = hwc_prepare; 621 dev->device.set = hwc_set; 622 dev->device.eventControl = hwc_eventControl; 623 dev->device.blank = hwc_blank; 624 dev->device.query = hwc_query; 625 dev->device.registerProcs = hwc_registerProcs; 626 dev->device.dump = hwc_dump; 627 dev->device.getDisplayConfigs = hwc_getDisplayConfigs; 628 dev->device.getDisplayAttributes = hwc_getDisplayAttributes; 629 *device = &dev->device.common; 630 status = 0; 631 } 632 return status; 633} 634