hdlcd.cc revision 9648:f10eb34e3e38
1/* 2 * Copyright (c) 2010-2013 ARM Limited 3 * All rights reserved 4 * 5 * The license below extends only to copyright in the software and shall 6 * not be construed as granting a license to any other intellectual 7 * property including but not limited to intellectual property relating 8 * to a hardware implementation of the functionality of the software 9 * licensed hereunder. You may use the software subject to the license 10 * terms below provided that you ensure that this notice is replicated 11 * unmodified and in its entirety in all distributions of the software, 12 * modified or unmodified, in source code or in binary form. 13 * 14 * Redistribution and use in source and binary forms, with or without 15 * modification, are permitted provided that the following conditions are 16 * met: redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer; 18 * redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution; 21 * neither the name of the copyright holders nor the names of its 22 * contributors may be used to endorse or promote products derived from 23 * this software without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 26 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 27 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 28 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 29 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 30 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 31 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 32 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 33 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 34 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 35 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 36 * 37 * Authors: Chris Emmons 38 */ 39 40#include "base/vnc/vncinput.hh" 41#include "base/bitmap.hh" 42#include "base/output.hh" 43#include "base/trace.hh" 44#include "debug/HDLcd.hh" 45#include "debug/Uart.hh" 46#include "dev/arm/amba_device.hh" 47#include "dev/arm/base_gic.hh" 48#include "dev/arm/hdlcd.hh" 49#include "mem/packet.hh" 50#include "mem/packet_access.hh" 51#include "sim/system.hh" 52 53using std::vector; 54 55 56// initialize hdlcd registers 57HDLcd::HDLcd(const Params *p) 58 : AmbaDmaDevice(p), version(VERSION_RESETV), 59 int_rawstat(0), int_clear(0), int_mask(0), int_status(0), 60 fb_base(0), fb_line_length(0), fb_line_count(0), fb_line_pitch(0), 61 bus_options(BUS_OPTIONS_RESETV), 62 v_sync(0), v_back_porch(0), v_data(0), v_front_porch(0), 63 h_sync(0), h_back_porch(0), h_data(0), h_front_porch(0), 64 polarities(0), command(0), pixel_format(0), 65 red_select(0), green_select(0), blue_select(0), 66 pixelClock(p->pixel_clock), vnc(p->vnc), bmp(NULL), pic(NULL), 67 frameReadStartTime(0), 68 dmaStartAddr(0), dmaCurAddr(0), dmaMaxAddr(0), dmaPendingNum(0), 69 frameUnderrun(false), virtualDisplayBuffer(NULL), pixelBufferSize(0), 70 pixelIndex(0), doUpdateParams(false), frameUnderway(false), 71 dmaBytesInFlight(0), 72 startFrameEvent(this), endFrameEvent(this), renderPixelEvent(this), 73 fillPixelBufferEvent(this), intEvent(this), 74 dmaDoneEventAll(MAX_OUTSTANDING_DMA_REQ_CAPACITY, this), 75 dmaDoneEventFree(MAX_OUTSTANDING_DMA_REQ_CAPACITY) 76{ 77 pioSize = 0xFFFF; 78 79 for (int i = 0; i < MAX_OUTSTANDING_DMA_REQ_CAPACITY; ++i) 80 dmaDoneEventFree[i] = &dmaDoneEventAll[i]; 81 82 if (vnc) 83 vnc->setFramebufferAddr(NULL); 84} 85 86HDLcd::~HDLcd() 87{ 88 if (virtualDisplayBuffer) 89 delete [] virtualDisplayBuffer; 90} 91 92// read registers and frame buffer 93Tick 94HDLcd::read(PacketPtr pkt) 95{ 96 uint32_t data = 0; 97 const Addr daddr = pkt->getAddr() - pioAddr; 98 99 DPRINTF(HDLcd, "read register BASE+0x%04x size=%d\n", daddr, 100 pkt->getSize()); 101 102 assert(pkt->getAddr() >= pioAddr && 103 pkt->getAddr() < pioAddr + pioSize && 104 pkt->getSize() == 4); 105 106 pkt->allocate(); 107 108 switch (daddr) { 109 case Version: 110 data = version; 111 break; 112 case Int_RawStat: 113 data = int_rawstat; 114 break; 115 case Int_Clear: 116 panic("HDLCD INT_CLEAR register is Write-Only\n"); 117 break; 118 case Int_Mask: 119 data = int_mask; 120 break; 121 case Int_Status: 122 data = int_status; 123 break; 124 case Fb_Base: 125 data = fb_base; 126 break; 127 case Fb_Line_Length: 128 data = fb_line_length; 129 break; 130 case Fb_Line_Count: 131 data = fb_line_count; 132 break; 133 case Fb_Line_Pitch: 134 data = fb_line_pitch; 135 break; 136 case Bus_Options: 137 data = bus_options; 138 break; 139 case V_Sync: 140 data = v_sync; 141 break; 142 case V_Back_Porch: 143 data = v_back_porch; 144 break; 145 case V_Data: 146 data = v_data; 147 break; 148 case V_Front_Porch: 149 data = v_front_porch; 150 break; 151 case H_Sync: 152 data = h_sync; 153 break; 154 case H_Back_Porch: 155 data = h_back_porch; 156 break; 157 case H_Data: 158 data = h_data; 159 break; 160 case H_Front_Porch: 161 data = h_front_porch; 162 break; 163 case Polarities: 164 data = polarities; 165 break; 166 case Command: 167 data = command; 168 break; 169 case Pixel_Format: 170 data = pixel_format; 171 break; 172 case Red_Select: 173 data = red_select; 174 break; 175 case Green_Select: 176 data = green_select; 177 break; 178 case Blue_Select: 179 data = blue_select; 180 break; 181 default: 182 panic("Tried to read HDLCD register that doesn't exist\n", daddr); 183 break; 184 } 185 186 pkt->set<uint32_t>(data); 187 pkt->makeAtomicResponse(); 188 return pioDelay; 189} 190 191// write registers and frame buffer 192Tick 193HDLcd::write(PacketPtr pkt) 194{ 195 assert(pkt->getAddr() >= pioAddr && 196 pkt->getAddr() < pioAddr + pioSize && 197 pkt->getSize() == 4); 198 199 const uint32_t data = pkt->get<uint32_t>(); 200 const Addr daddr = pkt->getAddr() - pioAddr; 201 202 DPRINTF(HDLcd, "write register BASE+%0x04x <= 0x%08x\n", daddr, 203 pkt->get<uint32_t>()); 204 205 switch (daddr) { 206 case Version: 207 panic("HDLCD VERSION register is read-Only\n"); 208 break; 209 case Int_RawStat: 210 int_rawstat = data; 211 break; 212 case Int_Clear: 213 int_clear = data; 214 break; 215 case Int_Mask: 216 int_mask = data; 217 break; 218 case Int_Status: 219 panic("HDLCD INT_STATUS register is read-Only\n"); 220 break; 221 case Fb_Base: 222 fb_base = data; 223 DPRINTF(HDLcd, "HDLCD Frame Buffer located at addr 0x%08x\n", fb_base); 224 break; 225 case Fb_Line_Length: 226 fb_line_length = data; 227 DPRINTF(HDLcd, "HDLCD res = %d x %d\n", width(), height()); 228 break; 229 case Fb_Line_Count: 230 fb_line_count = data; 231 DPRINTF(HDLcd, "HDLCD res = %d x %d\n", width(), height()); 232 break; 233 case Fb_Line_Pitch: 234 fb_line_pitch = data; 235 break; 236 case Bus_Options: { 237 BusOptsReg old_bus_options; 238 old_bus_options = bus_options; 239 bus_options = data; 240 if (bus_options.max_outstanding != old_bus_options.max_outstanding) 241 DPRINTF(HDLcd, 242 "Changing HDLcd outstanding dma transactions from %d to %d\n", 243 old_bus_options.max_outstanding, bus_options.max_outstanding); 244 if (bus_options.burst_len != old_bus_options.burst_len) 245 DPRINTF(HDLcd, 246 "Changing HDLcd dma burst length from %d bytes to %d bytes\n", 247 old_bus_options.burst_len, bus_options.burst_len); } 248 break; 249 case V_Sync: 250 v_sync = data; 251 break; 252 case V_Back_Porch: 253 v_back_porch = data; 254 break; 255 case V_Data: 256 v_data = data; 257 break; 258 case V_Front_Porch: 259 v_front_porch = data; 260 break; 261 case H_Sync: 262 h_sync = data; 263 break; 264 case H_Back_Porch: 265 h_back_porch = data; 266 break; 267 case H_Data: 268 h_data = data; 269 break; 270 case H_Front_Porch: 271 h_front_porch = data; 272 break; 273 case Polarities: 274 polarities = data; 275 break; 276 case Command: { 277 CommandReg new_command; 278 new_command = data; 279 if (new_command.enable != command.enable) { 280 DPRINTF(HDLcd, "HDLCD switched %s\n", 281 new_command.enable==0 ? "off" : "on"); 282 if (new_command.enable) { 283 doUpdateParams = true; 284 if (!frameUnderway) { 285 schedule(startFrameEvent, clockEdge()); 286 } 287 } 288 } 289 command = new_command; } 290 break; 291 case Pixel_Format: 292 pixel_format = data; 293 DPRINTF(HDLcd, "HDLCD res = %d x %d\n", width(), height()); 294 DPRINTF(HDLcd, "HDLCD bytes per pixel = %d\n", bytesPerPixel()); 295 DPRINTF(HDLcd, "HDLCD endianness = %s\n", 296 pixel_format.big_endian ? "big" : "little"); 297 break; 298 case Red_Select: 299 red_select = data; 300 break; 301 case Green_Select: 302 green_select = data; 303 break; 304 case Blue_Select: 305 blue_select = data; 306 break; 307 default: 308 panic("Tried to write HDLCD register that doesn't exist\n", daddr); 309 break; 310 } 311 312 pkt->makeAtomicResponse(); 313 return pioDelay; 314} 315 316void 317HDLcd::updateVideoParams(bool unserializing = false) 318{ 319 const uint16_t bpp = bytesPerPixel() << 3; 320 const size_t buffer_size = bytesPerPixel() * width() * height(); 321 322 // updating these parameters while LCD is enabled is not supported 323 if (frameUnderway && !unserializing) 324 panic("Attempting to change some HDLCD parameters while the controller" 325 " is active is not allowed"); 326 327 // resize the virtualDisplayBuffer unless we are unserializing - it may 328 // have changed size 329 // there must be no outstanding DMA transactions for this to work 330 if (!unserializing) { 331 assert(dmaPendingNum == 0); 332 if (virtualDisplayBuffer) 333 delete [] virtualDisplayBuffer; 334 virtualDisplayBuffer = new uint8_t[buffer_size]; 335 memset(virtualDisplayBuffer, 0, buffer_size); 336 } 337 338 assert(virtualDisplayBuffer); 339 if (vnc) 340 vnc->setFramebufferAddr(virtualDisplayBuffer); 341 342 if (bmp) 343 delete bmp; 344 345 DPRINTF(HDLcd, "bpp = %d\n", bpp); 346 DPRINTF(HDLcd, "display size = %d x %d\n", width(), height()); 347#if TRACING_ON 348 const size_t totalLinesPerFrame = v_back_porch.val + 1 + 349 v_data.val + 1 + 350 v_front_porch.val + 1 + 351 v_sync.val + 1; 352 const double fps = (double)SimClock::Frequency / 353 (double)(PClksPerLine() * totalLinesPerFrame * pixelClock); 354#endif 355 DPRINTF(HDLcd, "simulated refresh rate ~ %.1ffps generating ~ %.1fMB/s " 356 "traffic ([%.1fMHz, T=%d sim clocks] pclk, %d bpp => %.1fMB/s peak requirement)\n", 357 fps, 358 fps * buffer_size / 1024 / 1024, 359 (double)SimClock::Frequency / pixelClock / 1000000.0, 360 pixelClock, 361 bpp, 362 (double)(SimClock::Frequency / pixelClock * (bpp / 8)) / 1024 / 1024); 363 364 if (pixel_format.big_endian) 365 panic("Big Endian pixel format not implemented by HDLcd controller"); 366 367 if (vnc) { 368 if ((bpp == 24) && 369 (red_select.size == 8) && 370 (blue_select.size == 8) && 371 (green_select.size == 8) && 372 (green_select.offset == 8)) { 373 if ((blue_select.offset == 0) && 374 (red_select.offset == 16)) { 375 vnc->setFrameBufferParams(VideoConvert::rgb8888, width(), 376 height()); 377 bmp = new Bitmap(VideoConvert::rgb8888, width(), height(), 378 virtualDisplayBuffer); 379 DPRINTF(HDLcd, "color mode: rgb888\n"); 380 } else if ((red_select.offset == 0) && 381 (blue_select.offset == 16)) { 382 vnc->setFrameBufferParams(VideoConvert::bgr8888, width(), 383 height()); 384 bmp = new Bitmap(VideoConvert::bgr8888, width(), height(), 385 virtualDisplayBuffer); 386 DPRINTF(HDLcd, "color mode: bgr888\n"); 387 } 388 } else if ((bpp == 16) && 389 (red_select.size == 5) && 390 (blue_select.size == 5) && 391 (green_select.size == 6) && 392 (green_select.offset == 5)) { 393 if ((blue_select.offset == 0) && 394 (red_select.offset == 11)) { 395 vnc->setFrameBufferParams(VideoConvert::rgb565, width(), 396 height()); 397 bmp = new Bitmap(VideoConvert::rgb565, width(), height(), 398 virtualDisplayBuffer); 399 DPRINTF(HDLcd, "color mode: rgb565\n"); 400 } else if ((red_select.offset == 0) && 401 (blue_select.offset == 11)) { 402 vnc->setFrameBufferParams(VideoConvert::bgr565, width(), 403 height()); 404 bmp = new Bitmap(VideoConvert::bgr565, width(), height(), 405 virtualDisplayBuffer); 406 DPRINTF(HDLcd, "color mode: bgr565\n"); 407 } 408 } else { 409 DPRINTF(HDLcd, "color mode: undefined\n"); 410 panic("Unimplemented video mode\n"); 411 } 412 } 413} 414 415void 416HDLcd::startFrame() 417{ 418 // 0. Check that we are in the appropriate state 419 assert(!frameUnderway); 420 if (!command.enable) 421 return; 422 DPRINTF(HDLcd, "Frame read started\n"); 423 if (doUpdateParams) { 424 updateVideoParams(); 425 doUpdateParams = false; 426 } 427 frameUnderway = true; 428 assert(virtualDisplayBuffer); 429 assert(pixelBufferSize == 0); 430 assert(dmaBytesInFlight == 0); 431 assert(dmaPendingNum == 0); 432 assert(dmaDoneEventFree.size() == dmaDoneEventAll.size()); 433 assert(!renderPixelEvent.scheduled()); 434 // currently only support positive line pitches equal to the line length 435 assert(width() * bytesPerPixel() == fb_line_pitch); 436 437 // 1. Start DMA'ing the frame; subsequent transactions created as we go 438 dmaCurAddr = dmaStartAddr = fb_base; 439 dmaMaxAddr = static_cast<Addr>(width() * height() * bytesPerPixel()) + 440 dmaCurAddr; 441 frameReadStartTime = curTick(); 442 pixelIndex = 0; 443 frameUnderrun = false; 444 fillPixelBuffer(); 445 446 // 2. Schedule first pixelclock read; subsequent reads generated as we go 447 Tick firstPixelReadTick = curTick() + pixelClock * ( 448 PClksPerLine() * (v_sync.val + 1 + 449 v_back_porch.val + 1) + 450 h_sync.val + 1 + 451 h_back_porch.val + 1); 452 schedule(renderPixelEvent, firstPixelReadTick); 453} 454 455void 456HDLcd::fillPixelBuffer() 457{ 458 // - am I under the LCD dma transaction total? 459 // - do I have more data to transfer? 460 // - have I not yet underrun for this frame? 461 // - is there room to put the data in the pixel buffer including any 462 // outstanding dma transfers in flight? 463 while ((dmaPendingNum < maxOutstandingDma()) && 464 (dmaMaxAddr > dmaCurAddr) && 465 !frameUnderrun && 466 bytesFreeInPixelBuffer() > dmaBurstLength() * AXI_PORT_WIDTH) { 467 // try largest transaction size allowed first but switch to smaller 468 // sizes for trailing bytes 469 size_t transaction_size = dmaBurstLength() * AXI_PORT_WIDTH; 470 while (transaction_size > (dmaMaxAddr - dmaCurAddr)) 471 transaction_size >>= 1; 472 assert(transaction_size > 0); 473 474 // concurrent dma reads need different dma done events 475 // due to assertion in scheduling state 476 ++dmaPendingNum; 477 478 assert(!dmaDoneEventFree.empty()); 479 DmaDoneEvent *event(dmaDoneEventFree.back()); 480 dmaDoneEventFree.pop_back(); 481 assert(event); 482 assert(!event->scheduled()); 483 484 // We use a uncachable request here because the requests from the CPU 485 // will be uncacheable as well. If we have uncacheable and cacheable 486 // requests in the memory system for the same address it won't be 487 // pleased 488 event->setTransactionSize(transaction_size); 489 dmaPort.dmaAction(MemCmd::ReadReq, dmaCurAddr, transaction_size, event, 490 virtualDisplayBuffer + dmaCurAddr - dmaStartAddr, 491 0, Request::UNCACHEABLE); 492 dmaCurAddr += transaction_size; 493 dmaBytesInFlight += transaction_size; 494 } 495} 496 497void 498HDLcd::renderPixel() 499{ 500 // try to handle multiple pixels at a time; doing so reduces the accuracy 501 // of the underrun detection but lowers simulation overhead 502 const size_t count = 32; 503 assert(width() % count == 0); // not set up to handle trailing pixels 504 505 // have we underrun on this frame anytime before? 506 if (frameUnderrun) { 507 // the LCD controller gives up on a frame if an underrun occurs and 508 // resumes regular operation on the next frame 509 pixelBufferSize = 0; 510 } else { 511 // did we underrun on this set of pixels? 512 if (pixelBufferSize < bytesPerPixel() * count) { 513 warn("HDLcd controller buffer underrun\n"); 514 frameUnderrun = true; 515 int_rawstat.underrun = 1; 516 if (!intEvent.scheduled()) 517 schedule(intEvent, clockEdge()); 518 } else { 519 // emulate the pixel read from the internal buffer 520 pixelBufferSize -= bytesPerPixel() * count; 521 } 522 } 523 524 // the DMA may have previously stalled due to the buffer being full; 525 // give it a kick; it knows not to fill if at end of frame, underrun, etc 526 if (!fillPixelBufferEvent.scheduled()) 527 schedule(fillPixelBufferEvent, clockEdge()); 528 529 // schedule the next pixel read according to where it is in the frame 530 pixelIndex += count; 531 assert(pixelIndex <= width() * height()); 532 size_t x = pixelIndex % width(); 533 Tick nextEventTick = curTick(); 534 if (x == 0) { 535 // start of new line 536 nextEventTick += pixelClock * ((h_front_porch.val + 1) + 537 (h_back_porch.val + 1) + 538 (h_sync.val + 1)); 539 if (pixelIndex == width() * height()) { 540 // end of frame 541 nextEventTick += PClksPerLine() * (v_front_porch.val + 1) * 542 pixelClock; 543 schedule(endFrameEvent, nextEventTick); 544 return; 545 } 546 } else { 547 nextEventTick += pixelClock * count; 548 } 549 550 schedule(renderPixelEvent, nextEventTick); 551} 552 553void 554HDLcd::endFrame() { 555 assert(pixelBufferSize == 0); 556 assert(dmaPendingNum == 0); 557 assert(dmaBytesInFlight == 0); 558 assert(dmaDoneEventFree.size() == dmaDoneEventAll.size()); 559 560 if (vnc) 561 vnc->setDirty(); 562 563 if (!pic) 564 pic = simout.create(csprintf("%s.framebuffer.bmp", sys->name()), true); 565 566 assert(bmp); 567 assert(pic); 568 pic->seekp(0); 569 bmp->write(pic); 570 571 // start the next frame 572 frameUnderway = false; 573 startFrame(); 574} 575 576void 577HDLcd::dmaDone(DmaDoneEvent *event) 578{ 579 const size_t transactionLength = event->getTransactionSize(); 580 assert(pixelBufferSize + transactionLength < PIXEL_BUFFER_CAPACITY); 581 assert(dmaCurAddr <= dmaMaxAddr); 582 583 dmaDoneEventFree.push_back(event); 584 --dmaPendingNum; 585 assert(MAX_OUTSTANDING_DMA_REQ_CAPACITY - dmaDoneEventFree.size() == 586 dmaPendingNum); 587 588 // add the data to the pixel buffer 589 dmaBytesInFlight -= transactionLength; 590 pixelBufferSize += transactionLength; 591 592 // schedule another dma transaction if: 593 // - we're not done reading the frame 594 // - there is sufficient room in the pixel buffer for another transaction 595 // - another fillPixelBufferEvent is not already scheduled 596 const size_t targetTransSize = dmaBurstLength() * AXI_PORT_WIDTH; 597 if ((dmaCurAddr < dmaMaxAddr) && 598 (bytesFreeInPixelBuffer() + targetTransSize < PIXEL_BUFFER_CAPACITY) && 599 !fillPixelBufferEvent.scheduled()) { 600 schedule(fillPixelBufferEvent, clockEdge()); 601 } 602} 603 604void 605HDLcd::serialize(std::ostream &os) 606{ 607 DPRINTF(HDLcd, "Serializing ARM HDLCD\n"); 608 609 const uint32_t version_serial = version; 610 SERIALIZE_SCALAR(version_serial); 611 const uint32_t int_rawstat_serial = int_rawstat; 612 SERIALIZE_SCALAR(int_rawstat_serial); 613 const uint32_t int_clear_serial = int_clear; 614 SERIALIZE_SCALAR(int_clear_serial); 615 const uint32_t int_mask_serial = int_mask; 616 SERIALIZE_SCALAR(int_mask_serial); 617 const uint32_t int_status_serial = int_status; 618 SERIALIZE_SCALAR(int_status_serial); 619 620 SERIALIZE_SCALAR(fb_base); 621 SERIALIZE_SCALAR(fb_line_length); 622 623 const uint32_t fb_line_count_serial = fb_line_count; 624 SERIALIZE_SCALAR(fb_line_count_serial); 625 626 SERIALIZE_SCALAR(fb_line_pitch); 627 628 const uint32_t bus_options_serial = bus_options; 629 SERIALIZE_SCALAR(bus_options_serial); 630 const uint32_t v_sync_serial = v_sync; 631 SERIALIZE_SCALAR(v_sync_serial); 632 const uint32_t v_back_porch_serial = v_back_porch; 633 SERIALIZE_SCALAR(v_back_porch_serial); 634 const uint32_t v_data_serial = v_data; 635 SERIALIZE_SCALAR(v_data_serial); 636 const uint32_t v_front_porch_serial = v_front_porch; 637 SERIALIZE_SCALAR(v_front_porch_serial); 638 const uint32_t h_sync_serial = h_sync; 639 SERIALIZE_SCALAR(h_sync_serial); 640 const uint32_t h_back_porch_serial = h_back_porch; 641 SERIALIZE_SCALAR(h_back_porch_serial); 642 const uint32_t h_data_serial = h_data; 643 SERIALIZE_SCALAR(h_data_serial); 644 const uint32_t h_front_porch_serial = h_front_porch; 645 SERIALIZE_SCALAR(h_front_porch_serial); 646 const uint32_t polarities_serial = polarities; 647 SERIALIZE_SCALAR(polarities_serial); 648 const uint32_t command_serial = command; 649 SERIALIZE_SCALAR(command_serial); 650 const uint32_t pixel_format_serial = pixel_format; 651 SERIALIZE_SCALAR(pixel_format_serial); 652 const uint32_t red_select_serial = red_select; 653 SERIALIZE_SCALAR(red_select_serial); 654 const uint32_t green_select_serial = green_select; 655 SERIALIZE_SCALAR(green_select_serial); 656 const uint32_t blue_select_serial = blue_select; 657 SERIALIZE_SCALAR(blue_select_serial); 658 659 SERIALIZE_SCALAR(frameReadStartTime); 660 SERIALIZE_SCALAR(dmaStartAddr); 661 SERIALIZE_SCALAR(dmaCurAddr); 662 SERIALIZE_SCALAR(dmaMaxAddr); 663 SERIALIZE_SCALAR(dmaPendingNum); 664 SERIALIZE_SCALAR(frameUnderrun); 665 666 const size_t buffer_size = bytesPerPixel() * width() * height(); 667 SERIALIZE_ARRAY(virtualDisplayBuffer, buffer_size); 668 669 SERIALIZE_SCALAR(pixelBufferSize); 670 SERIALIZE_SCALAR(pixelIndex); 671 SERIALIZE_SCALAR(doUpdateParams); 672 SERIALIZE_SCALAR(frameUnderway); 673 SERIALIZE_SCALAR(dmaBytesInFlight); 674 675 Tick start_event_time = 0; 676 Tick end_event_time = 0; 677 Tick render_pixel_event_time = 0; 678 Tick fill_pixel_buffer_event_time = 0; 679 Tick int_event_time = 0; 680 if (startFrameEvent.scheduled()) 681 start_event_time = startFrameEvent.when(); 682 if (endFrameEvent.scheduled()) 683 end_event_time = endFrameEvent.when(); 684 if (renderPixelEvent.scheduled()) 685 render_pixel_event_time = renderPixelEvent.when(); 686 if (fillPixelBufferEvent.scheduled()) 687 fill_pixel_buffer_event_time = fillPixelBufferEvent.when(); 688 if (intEvent.scheduled()) 689 int_event_time = intEvent.when(); 690 SERIALIZE_SCALAR(start_event_time); 691 SERIALIZE_SCALAR(end_event_time); 692 SERIALIZE_SCALAR(render_pixel_event_time); 693 SERIALIZE_SCALAR(fill_pixel_buffer_event_time); 694 SERIALIZE_SCALAR(int_event_time); 695 696 vector<Tick> dma_done_event_tick(MAX_OUTSTANDING_DMA_REQ_CAPACITY); 697 vector<size_t> dma_done_event_burst_len(MAX_OUTSTANDING_DMA_REQ_CAPACITY); 698 for (int x = 0; x < MAX_OUTSTANDING_DMA_REQ_CAPACITY; ++x) { 699 dma_done_event_tick[x] = dmaDoneEventAll[x].scheduled() ? 700 dmaDoneEventAll[x].when() : 0; 701 dma_done_event_burst_len[x] = dmaDoneEventAll[x].scheduled() ? 702 dmaDoneEventAll[x].getTransactionSize() : 0; 703 } 704 arrayParamOut(os, "dma_done_event_tick", dma_done_event_tick); 705 arrayParamOut(os, "dma_done_event_burst_length", dma_done_event_burst_len); 706} 707 708void 709HDLcd::unserialize(Checkpoint *cp, const std::string §ion) 710{ 711 uint32_t version_serial, int_rawstat_serial, int_clear_serial, 712 int_mask_serial, int_status_serial, fb_line_count_serial, 713 bus_options_serial, v_sync_serial, v_back_porch_serial, 714 v_data_serial, v_front_porch_serial, h_sync_serial, 715 h_back_porch_serial, h_data_serial, h_front_porch_serial, 716 polarities_serial, command_serial, pixel_format_serial, 717 red_select_serial, green_select_serial, blue_select_serial; 718 719 DPRINTF(HDLcd, "Unserializing ARM HDLCD\n"); 720 721 UNSERIALIZE_SCALAR(version_serial); 722 version = version_serial; 723 UNSERIALIZE_SCALAR(int_rawstat_serial); 724 int_rawstat = int_rawstat_serial; 725 UNSERIALIZE_SCALAR(int_clear_serial); 726 int_clear = int_clear_serial; 727 UNSERIALIZE_SCALAR(int_mask_serial); 728 int_mask = int_mask_serial; 729 UNSERIALIZE_SCALAR(int_status_serial); 730 int_status = int_status_serial; 731 732 UNSERIALIZE_SCALAR(fb_base); 733 UNSERIALIZE_SCALAR(fb_line_length); 734 735 UNSERIALIZE_SCALAR(fb_line_count_serial); 736 fb_line_count = fb_line_count_serial; 737 738 UNSERIALIZE_SCALAR(fb_line_pitch); 739 740 UNSERIALIZE_SCALAR(bus_options_serial); 741 bus_options = bus_options_serial; 742 UNSERIALIZE_SCALAR(v_sync_serial); 743 v_sync = v_sync_serial; 744 UNSERIALIZE_SCALAR(v_back_porch_serial); 745 v_back_porch = v_back_porch_serial; 746 UNSERIALIZE_SCALAR(v_data_serial); 747 v_data = v_data_serial; 748 UNSERIALIZE_SCALAR(v_front_porch_serial); 749 v_front_porch = v_front_porch_serial; 750 UNSERIALIZE_SCALAR(h_sync_serial); 751 h_sync = h_sync_serial; 752 UNSERIALIZE_SCALAR(h_back_porch_serial); 753 h_back_porch = h_back_porch_serial; 754 UNSERIALIZE_SCALAR(h_data_serial); 755 h_data = h_data_serial; 756 UNSERIALIZE_SCALAR(h_front_porch_serial); 757 h_front_porch = h_front_porch_serial; 758 UNSERIALIZE_SCALAR(polarities_serial); 759 polarities = polarities_serial; 760 UNSERIALIZE_SCALAR(command_serial); 761 command = command_serial; 762 UNSERIALIZE_SCALAR(pixel_format_serial); 763 pixel_format = pixel_format_serial; 764 UNSERIALIZE_SCALAR(red_select_serial); 765 red_select = red_select_serial; 766 UNSERIALIZE_SCALAR(green_select_serial); 767 green_select = green_select_serial; 768 UNSERIALIZE_SCALAR(blue_select_serial); 769 blue_select = blue_select_serial; 770 771 UNSERIALIZE_SCALAR(frameReadStartTime); 772 UNSERIALIZE_SCALAR(dmaStartAddr); 773 UNSERIALIZE_SCALAR(dmaCurAddr); 774 UNSERIALIZE_SCALAR(dmaMaxAddr); 775 UNSERIALIZE_SCALAR(dmaPendingNum); 776 UNSERIALIZE_SCALAR(frameUnderrun); 777 UNSERIALIZE_SCALAR(dmaBytesInFlight); 778 779 const size_t buffer_size = bytesPerPixel() * width() * height(); 780 virtualDisplayBuffer = new uint8_t[buffer_size]; 781 UNSERIALIZE_ARRAY(virtualDisplayBuffer, buffer_size); 782 783 UNSERIALIZE_SCALAR(pixelBufferSize); 784 UNSERIALIZE_SCALAR(pixelIndex); 785 UNSERIALIZE_SCALAR(doUpdateParams); 786 UNSERIALIZE_SCALAR(frameUnderway); 787 788 Tick start_event_time = 0; 789 Tick end_event_time = 0; 790 Tick render_pixel_event_time = 0; 791 Tick fill_pixel_buffer_event_time = 0; 792 Tick int_event_time = 0; 793 UNSERIALIZE_SCALAR(start_event_time); 794 UNSERIALIZE_SCALAR(end_event_time); 795 UNSERIALIZE_SCALAR(render_pixel_event_time); 796 UNSERIALIZE_SCALAR(fill_pixel_buffer_event_time); 797 UNSERIALIZE_SCALAR(int_event_time); 798 if (start_event_time) 799 schedule(startFrameEvent, start_event_time); 800 if (end_event_time) 801 schedule(endFrameEvent, end_event_time); 802 if (render_pixel_event_time) 803 schedule(renderPixelEvent, render_pixel_event_time); 804 if (fill_pixel_buffer_event_time) 805 schedule(fillPixelBufferEvent, fill_pixel_buffer_event_time); 806 if (int_event_time) 807 schedule(intEvent, int_event_time); 808 809 vector<Tick> dma_done_event_tick(MAX_OUTSTANDING_DMA_REQ_CAPACITY); 810 vector<Tick> dma_done_event_burst_len(MAX_OUTSTANDING_DMA_REQ_CAPACITY); 811 arrayParamIn(cp, section, "dma_done_event_tick", dma_done_event_tick); 812 arrayParamIn(cp, section, "dma_done_event_burst_length", dma_done_event_burst_len); 813 dmaDoneEventFree.clear(); 814 for (int x = 0; x < MAX_OUTSTANDING_DMA_REQ_CAPACITY; ++x) { 815 if (dma_done_event_tick[x]) { 816 dmaDoneEventAll[x].setTransactionSize(dma_done_event_burst_len[x]); 817 schedule(dmaDoneEventAll[x], dma_done_event_tick[x]); 818 } else 819 dmaDoneEventFree.push_back(&dmaDoneEventAll[x]); 820 } 821 assert(MAX_OUTSTANDING_DMA_REQ_CAPACITY - dmaDoneEventFree.size() == dmaPendingNum); 822 823 if (frameUnderway) { 824 updateVideoParams(true); 825 if (vnc) 826 vnc->setDirty(); 827 } 828} 829 830void 831HDLcd::generateInterrupt() 832{ 833 int_status = int_rawstat & int_mask; 834 DPRINTF(HDLcd, "Generate Interrupt: int_rawstat=0x%08x int_mask=0x%08x " 835 "int_status=0x%08x\n", 836 (uint32_t)int_rawstat, (uint32_t)int_mask, (uint32_t)int_status); 837 838 if (int_status != 0) { 839 gic->sendInt(intNum); 840 DPRINTF(HDLcd, " -- Generated\n"); 841 } 842} 843 844AddrRangeList 845HDLcd::getAddrRanges() const 846{ 847 AddrRangeList ranges; 848 ranges.push_back(RangeSize(pioAddr, pioSize)); 849 return ranges; 850} 851 852HDLcd * 853HDLcdParams::create() 854{ 855 return new HDLcd(this); 856} 857