hdlcd.cc (9646:7a0c51f14095) hdlcd.cc (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

--- 268 unchanged lines hidden (view full) ---

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) {
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

--- 268 unchanged lines hidden (view full) ---

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, nextCycle());
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());

--- 215 unchanged lines hidden (view full) ---

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())
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());

--- 215 unchanged lines hidden (view full) ---

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, nextCycle());
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())
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, nextCycle());
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

--- 56 unchanged lines hidden (view full) ---

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()) {
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

--- 56 unchanged lines hidden (view full) ---

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, nextCycle());
600 schedule(fillPixelBufferEvent, clockEdge());
601 }
602}
603
604void
605HDLcd::serialize(std::ostream &os)
606{
607 DPRINTF(HDLcd, "Serializing ARM HDLCD\n");
608

--- 248 unchanged lines hidden --- 		601 }
602}
603
604void
605HDLcd::serialize(std::ostream &os)
606{
607 DPRINTF(HDLcd, "Serializing ARM HDLCD\n");
608

--- 248 unchanged lines hidden ---