diff options
Diffstat (limited to 'src/dev/arm/pl111.cc')
| -rw-r--r-- | src/dev/arm/pl111.cc | 26 |
1 files changed, 12 insertions, 14 deletions
diff --git a/src/dev/arm/pl111.cc b/src/dev/arm/pl111.cc index c68f606cd..2973cda27 100644 --- a/src/dev/arm/pl111.cc +++ b/src/dev/arm/pl111.cc @@ -1,5 +1,5 @@ /* - * Copyright (c) 2010 ARM Limited + * Copyright (c) 2010-2012 ARM Limited * All rights reserved * * The license below extends only to copyright in the software and shall @@ -64,6 +64,7 @@ Pl111::Pl111(const Params *p) clcdCrsrCtrl(0), clcdCrsrConfig(0), clcdCrsrPalette0(0), clcdCrsrPalette1(0), clcdCrsrXY(0), clcdCrsrClip(0), clcdCrsrImsc(0), clcdCrsrIcr(0), clcdCrsrRis(0), clcdCrsrMis(0), + pixelClock(p->pixel_clock), vnc(p->vnc), bmp(NULL), width(LcdMaxWidth), height(LcdMaxHeight), bytesPerPixel(4), startTime(0), startAddr(0), maxAddr(0), curAddr(0), waterMark(0), dmaPendingNum(0), readEvent(this), fillFifoEvent(this), @@ -440,14 +441,12 @@ Pl111::readFramebuffer() schedule(intEvent, nextCycle()); curAddr = 0; - startTime = curCycle(); + startTime = curTick(); maxAddr = static_cast<Addr>(length * bytesPerPixel); DPRINTF(PL111, " lcd frame buffer size of %d bytes \n", maxAddr); - dmaPendingNum = 0; - fillFifo(); } @@ -475,13 +474,15 @@ Pl111::fillFifo() void Pl111::dmaDone() { - Cycles maxFrameTime(lcdTiming2.cpl * height); + DPRINTF(PL111, "DMA Done\n"); + + Tick maxFrameTime = lcdTiming2.cpl * height * pixelClock; --dmaPendingNum; if (maxAddr == curAddr && !dmaPendingNum) { - if ((curCycle() - startTime) > maxFrameTime) { - warn("CLCD controller buffer underrun, took %d cycles when should" + if ((curTick() - startTime) > maxFrameTime) { + warn("CLCD controller buffer underrun, took %d ticks when should" " have taken %d\n", curTick() - startTime, maxFrameTime); lcdRis.underflow = 1; if (!intEvent.scheduled()) @@ -500,14 +501,11 @@ Pl111::dmaDone() // schedule the next read based on when the last frame started // and the desired fps (i.e. maxFrameTime), we turn the - // argument into a relative number of cycles in the future by - // subtracting curCycle() + // argument into a relative number of cycles in the future if (lcdControl.lcden) - // @todo: This is a terrible way of doing the time - // keeping, make it all relative - schedule(readEvent, - clockEdge(Cycles(startTime - curCycle() + - maxFrameTime))); + schedule(readEvent, clockEdge(ticksToCycles(startTime - + curTick() + + maxFrameTime))); } if (dmaPendingNum > (maxOutstandingDma - waterMark)) |