hdlcd.cc revision 11523
19646SChris.Emmons@arm.com/* 210839Sandreas.sandberg@arm.com * Copyright (c) 2010-2013, 2015 ARM Limited 39646SChris.Emmons@arm.com * All rights reserved 49646SChris.Emmons@arm.com * 59646SChris.Emmons@arm.com * The license below extends only to copyright in the software and shall 69646SChris.Emmons@arm.com * not be construed as granting a license to any other intellectual 79646SChris.Emmons@arm.com * property including but not limited to intellectual property relating 89646SChris.Emmons@arm.com * to a hardware implementation of the functionality of the software 99646SChris.Emmons@arm.com * licensed hereunder. You may use the software subject to the license 109646SChris.Emmons@arm.com * terms below provided that you ensure that this notice is replicated 119646SChris.Emmons@arm.com * unmodified and in its entirety in all distributions of the software, 129646SChris.Emmons@arm.com * modified or unmodified, in source code or in binary form. 139646SChris.Emmons@arm.com * 149646SChris.Emmons@arm.com * Redistribution and use in source and binary forms, with or without 159646SChris.Emmons@arm.com * modification, are permitted provided that the following conditions are 169646SChris.Emmons@arm.com * met: redistributions of source code must retain the above copyright 179646SChris.Emmons@arm.com * notice, this list of conditions and the following disclaimer; 189646SChris.Emmons@arm.com * redistributions in binary form must reproduce the above copyright 199646SChris.Emmons@arm.com * notice, this list of conditions and the following disclaimer in the 209646SChris.Emmons@arm.com * documentation and/or other materials provided with the distribution; 219646SChris.Emmons@arm.com * neither the name of the copyright holders nor the names of its 229646SChris.Emmons@arm.com * contributors may be used to endorse or promote products derived from 239646SChris.Emmons@arm.com * this software without specific prior written permission. 249646SChris.Emmons@arm.com * 259646SChris.Emmons@arm.com * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 269646SChris.Emmons@arm.com * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 279646SChris.Emmons@arm.com * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 289646SChris.Emmons@arm.com * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 299646SChris.Emmons@arm.com * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 309646SChris.Emmons@arm.com * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 319646SChris.Emmons@arm.com * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 329646SChris.Emmons@arm.com * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 339646SChris.Emmons@arm.com * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 349646SChris.Emmons@arm.com * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 359646SChris.Emmons@arm.com * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 369646SChris.Emmons@arm.com * 379646SChris.Emmons@arm.com * Authors: Chris Emmons 3811090Sandreas.sandberg@arm.com * Andreas Sandberg 399646SChris.Emmons@arm.com */ 409646SChris.Emmons@arm.com 4110839Sandreas.sandberg@arm.com#include "dev/arm/hdlcd.hh" 4210839Sandreas.sandberg@arm.com 439646SChris.Emmons@arm.com#include "base/vnc/vncinput.hh" 449646SChris.Emmons@arm.com#include "base/output.hh" 459646SChris.Emmons@arm.com#include "base/trace.hh" 4611090Sandreas.sandberg@arm.com#include "debug/Checkpoint.hh" 479646SChris.Emmons@arm.com#include "debug/HDLcd.hh" 489646SChris.Emmons@arm.com#include "dev/arm/amba_device.hh" 499646SChris.Emmons@arm.com#include "dev/arm/base_gic.hh" 509646SChris.Emmons@arm.com#include "mem/packet.hh" 519646SChris.Emmons@arm.com#include "mem/packet_access.hh" 5211090Sandreas.sandberg@arm.com#include "params/HDLcd.hh" 539646SChris.Emmons@arm.com#include "sim/system.hh" 549646SChris.Emmons@arm.com 559646SChris.Emmons@arm.comusing std::vector; 569646SChris.Emmons@arm.com 579646SChris.Emmons@arm.com 589646SChris.Emmons@arm.com// initialize hdlcd registers 5911090Sandreas.sandberg@arm.comHDLcd::HDLcd(const HDLcdParams *p) 6011090Sandreas.sandberg@arm.com : AmbaDmaDevice(p, 0xFFFF), 6111090Sandreas.sandberg@arm.com // Parameters 6211090Sandreas.sandberg@arm.com vnc(p->vnc), 6311090Sandreas.sandberg@arm.com workaroundSwapRB(p->workaround_swap_rb), 6411090Sandreas.sandberg@arm.com workaroundDmaLineCount(p->workaround_dma_line_count), 6511090Sandreas.sandberg@arm.com addrRanges{RangeSize(pioAddr, pioSize)}, 6611090Sandreas.sandberg@arm.com enableCapture(p->enable_capture), 6711090Sandreas.sandberg@arm.com pixelBufferSize(p->pixel_buffer_size), 6811090Sandreas.sandberg@arm.com 6911090Sandreas.sandberg@arm.com // Registers 7011090Sandreas.sandberg@arm.com version(VERSION_RESETV), 7111090Sandreas.sandberg@arm.com int_rawstat(0), int_mask(0), 7211090Sandreas.sandberg@arm.com 739646SChris.Emmons@arm.com fb_base(0), fb_line_length(0), fb_line_count(0), fb_line_pitch(0), 749646SChris.Emmons@arm.com bus_options(BUS_OPTIONS_RESETV), 7511090Sandreas.sandberg@arm.com 769646SChris.Emmons@arm.com v_sync(0), v_back_porch(0), v_data(0), v_front_porch(0), 779646SChris.Emmons@arm.com h_sync(0), h_back_porch(0), h_data(0), h_front_porch(0), 7811090Sandreas.sandberg@arm.com polarities(0), 7911090Sandreas.sandberg@arm.com 8011090Sandreas.sandberg@arm.com command(0), 8111090Sandreas.sandberg@arm.com 8211090Sandreas.sandberg@arm.com pixel_format(0), 839646SChris.Emmons@arm.com red_select(0), green_select(0), blue_select(0), 8411090Sandreas.sandberg@arm.com 8511090Sandreas.sandberg@arm.com // Other 8611090Sandreas.sandberg@arm.com bmp(&pixelPump.fb), pic(NULL), conv(PixelConverter::rgba8888_le), 8711090Sandreas.sandberg@arm.com pixelPump(*this, *p->pxl_clk, p->pixel_chunk) 889646SChris.Emmons@arm.com{ 899646SChris.Emmons@arm.com if (vnc) 9011090Sandreas.sandberg@arm.com vnc->setFrameBuffer(&pixelPump.fb); 919646SChris.Emmons@arm.com} 929646SChris.Emmons@arm.com 939646SChris.Emmons@arm.comHDLcd::~HDLcd() 949646SChris.Emmons@arm.com{ 959646SChris.Emmons@arm.com} 969646SChris.Emmons@arm.com 9711090Sandreas.sandberg@arm.comvoid 9811091Sandreas.sandberg@arm.comHDLcd::regStats() 9911091Sandreas.sandberg@arm.com{ 10011523Sdavid.guillen@arm.com AmbaDmaDevice::regStats(); 10111523Sdavid.guillen@arm.com 10211091Sandreas.sandberg@arm.com using namespace Stats; 10311091Sandreas.sandberg@arm.com 10411091Sandreas.sandberg@arm.com stats.underruns 10511091Sandreas.sandberg@arm.com .name(name() + ".underruns") 10611091Sandreas.sandberg@arm.com .desc("number of buffer underruns") 10711091Sandreas.sandberg@arm.com .flags(nozero) 10811091Sandreas.sandberg@arm.com ; 10911091Sandreas.sandberg@arm.com} 11011091Sandreas.sandberg@arm.com 11111091Sandreas.sandberg@arm.comvoid 11211090Sandreas.sandberg@arm.comHDLcd::serialize(CheckpointOut &cp) const 11311090Sandreas.sandberg@arm.com{ 11411090Sandreas.sandberg@arm.com DPRINTF(Checkpoint, "Serializing ARM HDLCD\n"); 11511090Sandreas.sandberg@arm.com 11611090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(int_rawstat); 11711090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(int_mask); 11811090Sandreas.sandberg@arm.com 11911090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(fb_base); 12011090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(fb_line_length); 12111090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(fb_line_count); 12211090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(fb_line_pitch); 12311090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(bus_options); 12411090Sandreas.sandberg@arm.com 12511090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(v_sync); 12611090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(v_back_porch); 12711090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(v_data); 12811090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(v_front_porch); 12911090Sandreas.sandberg@arm.com 13011090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(h_sync); 13111090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(h_back_porch); 13211090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(h_data); 13311090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(h_front_porch); 13411090Sandreas.sandberg@arm.com 13511090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(polarities); 13611090Sandreas.sandberg@arm.com 13711090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(command); 13811090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(pixel_format); 13911090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(red_select); 14011090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(green_select); 14111090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(blue_select); 14211090Sandreas.sandberg@arm.com 14311090Sandreas.sandberg@arm.com SERIALIZE_OBJ(pixelPump); 14411090Sandreas.sandberg@arm.com if (enabled()) 14511090Sandreas.sandberg@arm.com dmaEngine->serializeSection(cp, "dmaEngine"); 14611090Sandreas.sandberg@arm.com} 14711090Sandreas.sandberg@arm.com 14811090Sandreas.sandberg@arm.comvoid 14911090Sandreas.sandberg@arm.comHDLcd::unserialize(CheckpointIn &cp) 15011090Sandreas.sandberg@arm.com{ 15111090Sandreas.sandberg@arm.com DPRINTF(Checkpoint, "Unserializing ARM HDLCD\n"); 15211090Sandreas.sandberg@arm.com 15311090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(int_rawstat); 15411090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(int_mask); 15511090Sandreas.sandberg@arm.com 15611090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(fb_base); 15711090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(fb_line_length); 15811090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(fb_line_count); 15911090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(fb_line_pitch); 16011090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(bus_options); 16111090Sandreas.sandberg@arm.com 16211090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(v_sync); 16311090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(v_back_porch); 16411090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(v_data); 16511090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(v_front_porch); 16611090Sandreas.sandberg@arm.com 16711090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(h_sync); 16811090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(h_back_porch); 16911090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(h_data); 17011090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(h_front_porch); 17111090Sandreas.sandberg@arm.com 17211090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(polarities); 17311090Sandreas.sandberg@arm.com 17411090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(command); 17511090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(pixel_format); 17611090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(red_select); 17711090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(green_select); 17811090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(blue_select); 17911090Sandreas.sandberg@arm.com 18011090Sandreas.sandberg@arm.com { 18111090Sandreas.sandberg@arm.com // Try to unserialize the pixel pump. It might not exist if 18211090Sandreas.sandberg@arm.com // we're unserializing an old checkpoint. 18311090Sandreas.sandberg@arm.com ScopedCheckpointSection sec(cp, "pixelPump"); 18411090Sandreas.sandberg@arm.com if (cp.sectionExists(Serializable::currentSection())) 18511090Sandreas.sandberg@arm.com pixelPump.unserialize(cp); 18611090Sandreas.sandberg@arm.com } 18711090Sandreas.sandberg@arm.com 18811090Sandreas.sandberg@arm.com if (enabled()) { 18911090Sandreas.sandberg@arm.com // Create the DMA engine and read its state from the 19011090Sandreas.sandberg@arm.com // checkpoint. We don't need to worry about the pixel pump as 19111090Sandreas.sandberg@arm.com // it is a proper SimObject. 19211090Sandreas.sandberg@arm.com createDmaEngine(); 19311090Sandreas.sandberg@arm.com dmaEngine->unserializeSection(cp, "dmaEngine"); 19411090Sandreas.sandberg@arm.com 19511090Sandreas.sandberg@arm.com conv = pixelConverter(); 19611090Sandreas.sandberg@arm.com } 19711090Sandreas.sandberg@arm.com} 19811090Sandreas.sandberg@arm.com 19911090Sandreas.sandberg@arm.comvoid 20011090Sandreas.sandberg@arm.comHDLcd::drainResume() 20111090Sandreas.sandberg@arm.com{ 20211090Sandreas.sandberg@arm.com AmbaDmaDevice::drainResume(); 20311090Sandreas.sandberg@arm.com 20411090Sandreas.sandberg@arm.com // We restored from an old checkpoint without a pixel pump, start 20511090Sandreas.sandberg@arm.com // an new refresh. This typically happens when restoring from old 20611090Sandreas.sandberg@arm.com // checkpoints. 20711090Sandreas.sandberg@arm.com if (enabled() && !pixelPump.active()) 20811090Sandreas.sandberg@arm.com pixelPump.start(displayTimings()); 20911090Sandreas.sandberg@arm.com 21011090Sandreas.sandberg@arm.com // We restored from a checkpoint and need to update the VNC server 21111090Sandreas.sandberg@arm.com if (pixelPump.active() && vnc) 21211090Sandreas.sandberg@arm.com vnc->setDirty(); 21311090Sandreas.sandberg@arm.com} 21411090Sandreas.sandberg@arm.com 2159646SChris.Emmons@arm.com// read registers and frame buffer 2169646SChris.Emmons@arm.comTick 2179646SChris.Emmons@arm.comHDLcd::read(PacketPtr pkt) 2189646SChris.Emmons@arm.com{ 21911090Sandreas.sandberg@arm.com assert(pkt->getAddr() >= pioAddr && 22011090Sandreas.sandberg@arm.com pkt->getAddr() < pioAddr + pioSize); 2219646SChris.Emmons@arm.com 22211090Sandreas.sandberg@arm.com const Addr daddr(pkt->getAddr() - pioAddr); 22311090Sandreas.sandberg@arm.com panic_if(pkt->getSize() != 4, 22411090Sandreas.sandberg@arm.com "Unhandled read size (address: 0x.4x, size: %u)", 22511090Sandreas.sandberg@arm.com daddr, pkt->getSize()); 2269646SChris.Emmons@arm.com 22711090Sandreas.sandberg@arm.com const uint32_t data(readReg(daddr)); 22811090Sandreas.sandberg@arm.com DPRINTF(HDLcd, "read register 0x%04x: 0x%x\n", daddr, data); 2299646SChris.Emmons@arm.com 2309646SChris.Emmons@arm.com pkt->set<uint32_t>(data); 2319646SChris.Emmons@arm.com pkt->makeAtomicResponse(); 2329646SChris.Emmons@arm.com return pioDelay; 2339646SChris.Emmons@arm.com} 2349646SChris.Emmons@arm.com 2359646SChris.Emmons@arm.com// write registers and frame buffer 2369646SChris.Emmons@arm.comTick 2379646SChris.Emmons@arm.comHDLcd::write(PacketPtr pkt) 2389646SChris.Emmons@arm.com{ 2399646SChris.Emmons@arm.com assert(pkt->getAddr() >= pioAddr && 24011090Sandreas.sandberg@arm.com pkt->getAddr() < pioAddr + pioSize); 2419646SChris.Emmons@arm.com 24211090Sandreas.sandberg@arm.com const Addr daddr(pkt->getAddr() - pioAddr); 24311090Sandreas.sandberg@arm.com panic_if(pkt->getSize() != 4, 24411090Sandreas.sandberg@arm.com "Unhandled read size (address: 0x.4x, size: %u)", 24511090Sandreas.sandberg@arm.com daddr, pkt->getSize()); 24611090Sandreas.sandberg@arm.com const uint32_t data(pkt->get<uint32_t>()); 24711090Sandreas.sandberg@arm.com DPRINTF(HDLcd, "write register 0x%04x: 0x%x\n", daddr, data); 2489646SChris.Emmons@arm.com 24911090Sandreas.sandberg@arm.com writeReg(daddr, data); 2509646SChris.Emmons@arm.com 2519646SChris.Emmons@arm.com pkt->makeAtomicResponse(); 2529646SChris.Emmons@arm.com return pioDelay; 2539646SChris.Emmons@arm.com} 2549646SChris.Emmons@arm.com 25511090Sandreas.sandberg@arm.comuint32_t 25611090Sandreas.sandberg@arm.comHDLcd::readReg(Addr offset) 2579646SChris.Emmons@arm.com{ 25811090Sandreas.sandberg@arm.com switch (offset) { 25911090Sandreas.sandberg@arm.com case Version: return version; 26010839Sandreas.sandberg@arm.com 26111090Sandreas.sandberg@arm.com case Int_RawStat: return int_rawstat; 26211090Sandreas.sandberg@arm.com case Int_Clear: 26311090Sandreas.sandberg@arm.com panic("HDLCD INT_CLEAR register is Write-Only\n"); 26411090Sandreas.sandberg@arm.com case Int_Mask: return int_mask; 26511090Sandreas.sandberg@arm.com case Int_Status: return intStatus(); 2669646SChris.Emmons@arm.com 26711090Sandreas.sandberg@arm.com case Fb_Base: return fb_base; 26811090Sandreas.sandberg@arm.com case Fb_Line_Length: return fb_line_length; 26911090Sandreas.sandberg@arm.com case Fb_Line_Count: return fb_line_count; 27011090Sandreas.sandberg@arm.com case Fb_Line_Pitch: return fb_line_pitch; 27111090Sandreas.sandberg@arm.com case Bus_Options: return bus_options; 2729646SChris.Emmons@arm.com 27311090Sandreas.sandberg@arm.com case V_Sync: return v_sync; 27411090Sandreas.sandberg@arm.com case V_Back_Porch: return v_back_porch; 27511090Sandreas.sandberg@arm.com case V_Data: return v_data; 27611090Sandreas.sandberg@arm.com case V_Front_Porch: return v_front_porch; 27711090Sandreas.sandberg@arm.com case H_Sync: return h_sync; 27811090Sandreas.sandberg@arm.com case H_Back_Porch: return h_back_porch; 27911090Sandreas.sandberg@arm.com case H_Data: return h_data; 28011090Sandreas.sandberg@arm.com case H_Front_Porch: return h_front_porch; 28111090Sandreas.sandberg@arm.com case Polarities: return polarities; 28210839Sandreas.sandberg@arm.com 28311090Sandreas.sandberg@arm.com case Command: return command; 28411090Sandreas.sandberg@arm.com case Pixel_Format: return pixel_format; 28511090Sandreas.sandberg@arm.com case Red_Select: return red_select; 28611090Sandreas.sandberg@arm.com case Green_Select: return green_select; 28711090Sandreas.sandberg@arm.com case Blue_Select: return blue_select; 28810839Sandreas.sandberg@arm.com 28911090Sandreas.sandberg@arm.com default: 29011090Sandreas.sandberg@arm.com panic("Tried to read HDLCD register that doesn't exist\n", offset); 2919646SChris.Emmons@arm.com } 2929646SChris.Emmons@arm.com} 2939646SChris.Emmons@arm.com 2949646SChris.Emmons@arm.comvoid 29511090Sandreas.sandberg@arm.comHDLcd::writeReg(Addr offset, uint32_t value) 2969646SChris.Emmons@arm.com{ 29711090Sandreas.sandberg@arm.com switch (offset) { 29811090Sandreas.sandberg@arm.com case Version: 29911090Sandreas.sandberg@arm.com panic("HDLCD VERSION register is read-Only\n"); 3009646SChris.Emmons@arm.com 30111090Sandreas.sandberg@arm.com case Int_RawStat: 30211090Sandreas.sandberg@arm.com intRaise(value); 30311090Sandreas.sandberg@arm.com return; 30411090Sandreas.sandberg@arm.com case Int_Clear: 30511090Sandreas.sandberg@arm.com intClear(value); 30611090Sandreas.sandberg@arm.com return; 30711090Sandreas.sandberg@arm.com case Int_Mask: 30811090Sandreas.sandberg@arm.com intMask(value); 30911090Sandreas.sandberg@arm.com return; 31011090Sandreas.sandberg@arm.com case Int_Status: 31111090Sandreas.sandberg@arm.com panic("HDLCD INT_STATUS register is read-Only\n"); 31211090Sandreas.sandberg@arm.com break; 31311090Sandreas.sandberg@arm.com 31411090Sandreas.sandberg@arm.com case Fb_Base: 31511090Sandreas.sandberg@arm.com fb_base = value; 31611090Sandreas.sandberg@arm.com return; 31711090Sandreas.sandberg@arm.com 31811090Sandreas.sandberg@arm.com case Fb_Line_Length: 31911090Sandreas.sandberg@arm.com fb_line_length = value; 32011090Sandreas.sandberg@arm.com return; 32111090Sandreas.sandberg@arm.com 32211090Sandreas.sandberg@arm.com case Fb_Line_Count: 32311090Sandreas.sandberg@arm.com fb_line_count = value; 32411090Sandreas.sandberg@arm.com return; 32511090Sandreas.sandberg@arm.com 32611090Sandreas.sandberg@arm.com case Fb_Line_Pitch: 32711090Sandreas.sandberg@arm.com fb_line_pitch = value; 32811090Sandreas.sandberg@arm.com return; 32911090Sandreas.sandberg@arm.com 33011090Sandreas.sandberg@arm.com case Bus_Options: { 33111090Sandreas.sandberg@arm.com const BusOptsReg old_bus_options(bus_options); 33211090Sandreas.sandberg@arm.com bus_options = value; 33311090Sandreas.sandberg@arm.com 33411090Sandreas.sandberg@arm.com if (bus_options.max_outstanding != old_bus_options.max_outstanding) { 33511090Sandreas.sandberg@arm.com DPRINTF(HDLcd, 33611090Sandreas.sandberg@arm.com "Changing HDLcd outstanding DMA transactions: %d -> %d\n", 33711090Sandreas.sandberg@arm.com old_bus_options.max_outstanding, 33811090Sandreas.sandberg@arm.com bus_options.max_outstanding); 33911090Sandreas.sandberg@arm.com 34011090Sandreas.sandberg@arm.com } 34111090Sandreas.sandberg@arm.com 34211090Sandreas.sandberg@arm.com if (bus_options.burst_len != old_bus_options.burst_len) { 34311090Sandreas.sandberg@arm.com DPRINTF(HDLcd, 34411090Sandreas.sandberg@arm.com "Changing HDLcd DMA burst flags: 0x%x -> 0x%x\n", 34511090Sandreas.sandberg@arm.com old_bus_options.burst_len, bus_options.burst_len); 34611090Sandreas.sandberg@arm.com } 34711090Sandreas.sandberg@arm.com } return; 34811090Sandreas.sandberg@arm.com 34911090Sandreas.sandberg@arm.com case V_Sync: 35011090Sandreas.sandberg@arm.com v_sync = value; 35111090Sandreas.sandberg@arm.com return; 35211090Sandreas.sandberg@arm.com case V_Back_Porch: 35311090Sandreas.sandberg@arm.com v_back_porch = value; 35411090Sandreas.sandberg@arm.com return; 35511090Sandreas.sandberg@arm.com case V_Data: 35611090Sandreas.sandberg@arm.com v_data = value; 35711090Sandreas.sandberg@arm.com return; 35811090Sandreas.sandberg@arm.com case V_Front_Porch: 35911090Sandreas.sandberg@arm.com v_front_porch = value; 36011090Sandreas.sandberg@arm.com return; 36111090Sandreas.sandberg@arm.com 36211090Sandreas.sandberg@arm.com case H_Sync: 36311090Sandreas.sandberg@arm.com h_sync = value; 36411090Sandreas.sandberg@arm.com return; 36511090Sandreas.sandberg@arm.com case H_Back_Porch: 36611090Sandreas.sandberg@arm.com h_back_porch = value; 36711090Sandreas.sandberg@arm.com return; 36811090Sandreas.sandberg@arm.com case H_Data: 36911090Sandreas.sandberg@arm.com h_data = value; 37011090Sandreas.sandberg@arm.com return; 37111090Sandreas.sandberg@arm.com case H_Front_Porch: 37211090Sandreas.sandberg@arm.com h_front_porch = value; 37311090Sandreas.sandberg@arm.com return; 37411090Sandreas.sandberg@arm.com 37511090Sandreas.sandberg@arm.com case Polarities: 37611090Sandreas.sandberg@arm.com polarities = value; 37711090Sandreas.sandberg@arm.com return; 37811090Sandreas.sandberg@arm.com 37911090Sandreas.sandberg@arm.com case Command: { 38011090Sandreas.sandberg@arm.com const CommandReg new_command(value); 38111090Sandreas.sandberg@arm.com 38211090Sandreas.sandberg@arm.com if (new_command.enable != command.enable) { 38311090Sandreas.sandberg@arm.com DPRINTF(HDLcd, "HDLCD switched %s\n", 38411090Sandreas.sandberg@arm.com new_command.enable ? "on" : "off"); 38511090Sandreas.sandberg@arm.com 38611090Sandreas.sandberg@arm.com if (new_command.enable) { 38711090Sandreas.sandberg@arm.com cmdEnable(); 38811090Sandreas.sandberg@arm.com } else { 38911090Sandreas.sandberg@arm.com cmdDisable(); 39011090Sandreas.sandberg@arm.com } 39111090Sandreas.sandberg@arm.com } 39211090Sandreas.sandberg@arm.com command = new_command; 39311090Sandreas.sandberg@arm.com } return; 39411090Sandreas.sandberg@arm.com 39511090Sandreas.sandberg@arm.com case Pixel_Format: 39611090Sandreas.sandberg@arm.com pixel_format = value; 39711090Sandreas.sandberg@arm.com return; 39811090Sandreas.sandberg@arm.com 39911090Sandreas.sandberg@arm.com case Red_Select: 40011090Sandreas.sandberg@arm.com red_select = value; 40111090Sandreas.sandberg@arm.com return; 40211090Sandreas.sandberg@arm.com case Green_Select: 40311090Sandreas.sandberg@arm.com green_select = value; 40411090Sandreas.sandberg@arm.com return; 40511090Sandreas.sandberg@arm.com case Blue_Select: 40611090Sandreas.sandberg@arm.com blue_select = value; 40711090Sandreas.sandberg@arm.com return; 40811090Sandreas.sandberg@arm.com 40911090Sandreas.sandberg@arm.com default: 41011090Sandreas.sandberg@arm.com panic("Tried to write HDLCD register that doesn't exist\n", offset); 41111090Sandreas.sandberg@arm.com return; 4129646SChris.Emmons@arm.com } 4139646SChris.Emmons@arm.com} 4149646SChris.Emmons@arm.com 41510839Sandreas.sandberg@arm.comPixelConverter 41610839Sandreas.sandberg@arm.comHDLcd::pixelConverter() const 41710839Sandreas.sandberg@arm.com{ 41810840Sandreas.sandberg@arm.com ByteOrder byte_order( 41910839Sandreas.sandberg@arm.com pixel_format.big_endian ? BigEndianByteOrder : LittleEndianByteOrder); 42010840Sandreas.sandberg@arm.com 42110840Sandreas.sandberg@arm.com /* Some Linux kernels have a broken driver that swaps the red and 42210840Sandreas.sandberg@arm.com * blue color select registers. */ 42311090Sandreas.sandberg@arm.com if (!workaroundSwapRB) { 42410840Sandreas.sandberg@arm.com return PixelConverter( 42511090Sandreas.sandberg@arm.com pixel_format.bytes_per_pixel + 1, 42610840Sandreas.sandberg@arm.com red_select.offset, green_select.offset, blue_select.offset, 42710840Sandreas.sandberg@arm.com red_select.size, green_select.size, blue_select.size, 42810840Sandreas.sandberg@arm.com byte_order); 42910840Sandreas.sandberg@arm.com } else { 43010840Sandreas.sandberg@arm.com return PixelConverter( 43111090Sandreas.sandberg@arm.com pixel_format.bytes_per_pixel + 1, 43210840Sandreas.sandberg@arm.com blue_select.offset, green_select.offset, red_select.offset, 43310840Sandreas.sandberg@arm.com blue_select.size, green_select.size, red_select.size, 43410840Sandreas.sandberg@arm.com byte_order); 43510840Sandreas.sandberg@arm.com } 43610839Sandreas.sandberg@arm.com} 43710839Sandreas.sandberg@arm.com 43811090Sandreas.sandberg@arm.comDisplayTimings 43911090Sandreas.sandberg@arm.comHDLcd::displayTimings() const 44011090Sandreas.sandberg@arm.com{ 44111090Sandreas.sandberg@arm.com return DisplayTimings( 44211090Sandreas.sandberg@arm.com h_data.val + 1, v_data.val + 1, 44311090Sandreas.sandberg@arm.com h_back_porch.val + 1, h_sync.val + 1, h_front_porch.val + 1, 44411090Sandreas.sandberg@arm.com v_back_porch.val + 1, v_sync.val + 1, v_front_porch.val + 1); 44511090Sandreas.sandberg@arm.com} 44611090Sandreas.sandberg@arm.com 4479646SChris.Emmons@arm.comvoid 44811090Sandreas.sandberg@arm.comHDLcd::createDmaEngine() 44911090Sandreas.sandberg@arm.com{ 45011090Sandreas.sandberg@arm.com if (bus_options.max_outstanding == 0) { 45111090Sandreas.sandberg@arm.com warn("Maximum number of outstanding DMA transfers set to 0."); 45211090Sandreas.sandberg@arm.com return; 45311090Sandreas.sandberg@arm.com } 4549646SChris.Emmons@arm.com 45511090Sandreas.sandberg@arm.com const uint32_t dma_burst_flags(bus_options.burst_len); 45611090Sandreas.sandberg@arm.com const uint32_t dma_burst_len( 45711090Sandreas.sandberg@arm.com dma_burst_flags ? 45811090Sandreas.sandberg@arm.com (1UL << (findMsbSet(dma_burst_flags) - 1)) : 45911090Sandreas.sandberg@arm.com MAX_BURST_LEN); 46011090Sandreas.sandberg@arm.com // Some drivers seem to set the DMA line count incorrectly. This 46111090Sandreas.sandberg@arm.com // could either be a driver bug or a specification bug. Unlike for 46211090Sandreas.sandberg@arm.com // timings, the specification does not require 1 to be added to 46311090Sandreas.sandberg@arm.com // the DMA engine's line count. 46411090Sandreas.sandberg@arm.com const uint32_t dma_lines( 46511090Sandreas.sandberg@arm.com fb_line_count + (workaroundDmaLineCount ? 1 : 0)); 46611090Sandreas.sandberg@arm.com 46711090Sandreas.sandberg@arm.com dmaEngine.reset(new DmaEngine( 46811090Sandreas.sandberg@arm.com *this, pixelBufferSize, 46911090Sandreas.sandberg@arm.com AXI_PORT_WIDTH * dma_burst_len, 47011090Sandreas.sandberg@arm.com bus_options.max_outstanding, 47111090Sandreas.sandberg@arm.com fb_line_length, fb_line_pitch, dma_lines)); 47211090Sandreas.sandberg@arm.com} 47311090Sandreas.sandberg@arm.com 47411090Sandreas.sandberg@arm.comvoid 47511090Sandreas.sandberg@arm.comHDLcd::cmdEnable() 47611090Sandreas.sandberg@arm.com{ 47711090Sandreas.sandberg@arm.com createDmaEngine(); 47811090Sandreas.sandberg@arm.com conv = pixelConverter(); 47911090Sandreas.sandberg@arm.com pixelPump.start(displayTimings()); 48011090Sandreas.sandberg@arm.com} 48111090Sandreas.sandberg@arm.com 48211090Sandreas.sandberg@arm.comvoid 48311090Sandreas.sandberg@arm.comHDLcd::cmdDisable() 48411090Sandreas.sandberg@arm.com{ 48511090Sandreas.sandberg@arm.com pixelPump.stop(); 48611090Sandreas.sandberg@arm.com dmaEngine->abortFrame(); 48711090Sandreas.sandberg@arm.com} 48811090Sandreas.sandberg@arm.com 48911090Sandreas.sandberg@arm.combool 49011090Sandreas.sandberg@arm.comHDLcd::pxlNext(Pixel &p) 49111090Sandreas.sandberg@arm.com{ 49211090Sandreas.sandberg@arm.com uint8_t pixel_data[MAX_PIXEL_SIZE]; 49311090Sandreas.sandberg@arm.com assert(conv.length <= sizeof(pixel_data)); 49411090Sandreas.sandberg@arm.com if (dmaEngine->tryGet(pixel_data, conv.length)) { 49511090Sandreas.sandberg@arm.com p = conv.toPixel(pixel_data); 49611090Sandreas.sandberg@arm.com return true; 49711090Sandreas.sandberg@arm.com } else { 49811090Sandreas.sandberg@arm.com return false; 49911090Sandreas.sandberg@arm.com } 50011090Sandreas.sandberg@arm.com} 50111090Sandreas.sandberg@arm.com 50211090Sandreas.sandberg@arm.comvoid 50311090Sandreas.sandberg@arm.comHDLcd::pxlVSyncBegin() 50411090Sandreas.sandberg@arm.com{ 50511090Sandreas.sandberg@arm.com DPRINTF(HDLcd, "Raising VSYNC interrupt.\n"); 50611090Sandreas.sandberg@arm.com intRaise(INT_VSYNC); 50711090Sandreas.sandberg@arm.com} 50811090Sandreas.sandberg@arm.com 50911090Sandreas.sandberg@arm.comvoid 51011090Sandreas.sandberg@arm.comHDLcd::pxlVSyncEnd() 51111090Sandreas.sandberg@arm.com{ 51211090Sandreas.sandberg@arm.com DPRINTF(HDLcd, "End of VSYNC, starting DMA engine\n"); 51311090Sandreas.sandberg@arm.com dmaEngine->startFrame(fb_base); 51411090Sandreas.sandberg@arm.com} 51511090Sandreas.sandberg@arm.com 51611090Sandreas.sandberg@arm.comvoid 51711090Sandreas.sandberg@arm.comHDLcd::pxlUnderrun() 51811090Sandreas.sandberg@arm.com{ 51911090Sandreas.sandberg@arm.com DPRINTF(HDLcd, "Buffer underrun, stopping DMA fill.\n"); 52011091Sandreas.sandberg@arm.com ++stats.underruns; 52111090Sandreas.sandberg@arm.com intRaise(INT_UNDERRUN); 52211090Sandreas.sandberg@arm.com dmaEngine->abortFrame(); 52311090Sandreas.sandberg@arm.com} 52411090Sandreas.sandberg@arm.com 52511090Sandreas.sandberg@arm.comvoid 52611090Sandreas.sandberg@arm.comHDLcd::pxlFrameDone() 52711090Sandreas.sandberg@arm.com{ 52811090Sandreas.sandberg@arm.com DPRINTF(HDLcd, "Reached end of last visible line.\n"); 52911090Sandreas.sandberg@arm.com 53011090Sandreas.sandberg@arm.com if (dmaEngine->size()) { 53111090Sandreas.sandberg@arm.com warn("HDLCD %u bytes still in FIFO after frame: Ensure that DMA " 53211090Sandreas.sandberg@arm.com "and PixelPump configuration is consistent\n", 53311090Sandreas.sandberg@arm.com dmaEngine->size()); 53411090Sandreas.sandberg@arm.com dmaEngine->dumpSettings(); 53511090Sandreas.sandberg@arm.com pixelPump.dumpSettings(); 53611090Sandreas.sandberg@arm.com } 53710839Sandreas.sandberg@arm.com 5389646SChris.Emmons@arm.com if (vnc) 5399646SChris.Emmons@arm.com vnc->setDirty(); 5409646SChris.Emmons@arm.com 5419939Sdam.sunwoo@arm.com if (enableCapture) { 54211090Sandreas.sandberg@arm.com if (!pic) { 54311090Sandreas.sandberg@arm.com pic = simout.create( 54411090Sandreas.sandberg@arm.com csprintf("%s.framebuffer.bmp", sys->name()), 54511090Sandreas.sandberg@arm.com true); 54611090Sandreas.sandberg@arm.com } 5479646SChris.Emmons@arm.com 5489939Sdam.sunwoo@arm.com assert(pic); 54911359Sandreas@sandberg.pp.se pic->stream()->seekp(0); 55011359Sandreas@sandberg.pp.se bmp.write(*pic->stream()); 5519939Sdam.sunwoo@arm.com } 5529646SChris.Emmons@arm.com} 5539646SChris.Emmons@arm.com 5549646SChris.Emmons@arm.comvoid 55511090Sandreas.sandberg@arm.comHDLcd::setInterrupts(uint32_t ints, uint32_t mask) 5569646SChris.Emmons@arm.com{ 55711090Sandreas.sandberg@arm.com const bool old_ints(intStatus()); 5589646SChris.Emmons@arm.com 55911090Sandreas.sandberg@arm.com int_mask = mask; 56011090Sandreas.sandberg@arm.com int_rawstat = ints; 5619646SChris.Emmons@arm.com 56211090Sandreas.sandberg@arm.com if (!old_ints && intStatus()) { 56311090Sandreas.sandberg@arm.com gic->sendInt(intNum); 56411090Sandreas.sandberg@arm.com } else if (old_ints && !intStatus()) { 56511090Sandreas.sandberg@arm.com gic->clearInt(intNum); 5669646SChris.Emmons@arm.com } 5679646SChris.Emmons@arm.com} 5689646SChris.Emmons@arm.com 56911090Sandreas.sandberg@arm.comHDLcd::DmaEngine::DmaEngine(HDLcd &_parent, size_t size, 57011090Sandreas.sandberg@arm.com unsigned request_size, unsigned max_pending, 57111090Sandreas.sandberg@arm.com size_t line_size, ssize_t line_pitch, unsigned num_lines) 57211090Sandreas.sandberg@arm.com : DmaReadFifo( 57311090Sandreas.sandberg@arm.com _parent.dmaPort, size, request_size, max_pending, 57411090Sandreas.sandberg@arm.com Request::UNCACHEABLE), 57511090Sandreas.sandberg@arm.com parent(_parent), 57611090Sandreas.sandberg@arm.com lineSize(line_size), linePitch(line_pitch), numLines(num_lines), 57711090Sandreas.sandberg@arm.com nextLineAddr(0) 5789646SChris.Emmons@arm.com{ 5799646SChris.Emmons@arm.com} 5809646SChris.Emmons@arm.com 5819646SChris.Emmons@arm.comvoid 58211090Sandreas.sandberg@arm.comHDLcd::DmaEngine::serialize(CheckpointOut &cp) const 5839646SChris.Emmons@arm.com{ 58411090Sandreas.sandberg@arm.com DmaReadFifo::serialize(cp); 5859646SChris.Emmons@arm.com 58611090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(nextLineAddr); 58711090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(frameEnd); 5889646SChris.Emmons@arm.com} 5899646SChris.Emmons@arm.com 5909646SChris.Emmons@arm.comvoid 59111090Sandreas.sandberg@arm.comHDLcd::DmaEngine::unserialize(CheckpointIn &cp) 5929646SChris.Emmons@arm.com{ 59311090Sandreas.sandberg@arm.com DmaReadFifo::unserialize(cp); 5949646SChris.Emmons@arm.com 59511090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(nextLineAddr); 59611090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(frameEnd); 5979646SChris.Emmons@arm.com} 5989646SChris.Emmons@arm.com 59911090Sandreas.sandberg@arm.comvoid 60011090Sandreas.sandberg@arm.comHDLcd::DmaEngine::startFrame(Addr fb_base) 6019646SChris.Emmons@arm.com{ 60211090Sandreas.sandberg@arm.com nextLineAddr = fb_base; 60311090Sandreas.sandberg@arm.com frameEnd = fb_base + numLines * linePitch; 60411090Sandreas.sandberg@arm.com 60511090Sandreas.sandberg@arm.com startFill(nextLineAddr, lineSize); 6069646SChris.Emmons@arm.com} 6079646SChris.Emmons@arm.com 60811090Sandreas.sandberg@arm.comvoid 60911090Sandreas.sandberg@arm.comHDLcd::DmaEngine::abortFrame() 61011090Sandreas.sandberg@arm.com{ 61111090Sandreas.sandberg@arm.com nextLineAddr = frameEnd; 61211090Sandreas.sandberg@arm.com stopFill(); 61311090Sandreas.sandberg@arm.com flush(); 61411090Sandreas.sandberg@arm.com} 61511090Sandreas.sandberg@arm.com 61611090Sandreas.sandberg@arm.com 61711090Sandreas.sandberg@arm.comvoid 61811090Sandreas.sandberg@arm.comHDLcd::DmaEngine::dumpSettings() 61911090Sandreas.sandberg@arm.com{ 62011090Sandreas.sandberg@arm.com inform("DMA line size: %u bytes", lineSize); 62111090Sandreas.sandberg@arm.com inform("DMA line pitch: %i bytes", linePitch); 62211090Sandreas.sandberg@arm.com inform("DMA num lines: %u", numLines); 62311090Sandreas.sandberg@arm.com} 62411090Sandreas.sandberg@arm.com 62511090Sandreas.sandberg@arm.comvoid 62611090Sandreas.sandberg@arm.comHDLcd::DmaEngine::onEndOfBlock() 62711090Sandreas.sandberg@arm.com{ 62811090Sandreas.sandberg@arm.com if (nextLineAddr == frameEnd) 62911090Sandreas.sandberg@arm.com // We're done with this frame. Ignore calls to this method 63011090Sandreas.sandberg@arm.com // until the next frame has been started. 63111090Sandreas.sandberg@arm.com return; 63211090Sandreas.sandberg@arm.com 63311090Sandreas.sandberg@arm.com nextLineAddr += linePitch; 63411090Sandreas.sandberg@arm.com if (nextLineAddr != frameEnd) 63511090Sandreas.sandberg@arm.com startFill(nextLineAddr, lineSize); 63611090Sandreas.sandberg@arm.com} 63711090Sandreas.sandberg@arm.com 63811090Sandreas.sandberg@arm.comvoid 63911090Sandreas.sandberg@arm.comHDLcd::DmaEngine::onIdle() 64011090Sandreas.sandberg@arm.com{ 64111090Sandreas.sandberg@arm.com parent.intRaise(INT_DMA_END); 64211090Sandreas.sandberg@arm.com} 64311090Sandreas.sandberg@arm.com 64411090Sandreas.sandberg@arm.comvoid 64511090Sandreas.sandberg@arm.comHDLcd::PixelPump::dumpSettings() 64611090Sandreas.sandberg@arm.com{ 64711090Sandreas.sandberg@arm.com const DisplayTimings &t(timings()); 64811090Sandreas.sandberg@arm.com 64911090Sandreas.sandberg@arm.com inform("PixelPump width: %u", t.width); 65011090Sandreas.sandberg@arm.com inform("PixelPump height: %u", t.height); 65111090Sandreas.sandberg@arm.com 65211090Sandreas.sandberg@arm.com inform("PixelPump horizontal back porch: %u", t.hBackPorch); 65311090Sandreas.sandberg@arm.com inform("PixelPump horizontal fron porch: %u", t.hFrontPorch); 65411090Sandreas.sandberg@arm.com inform("PixelPump horizontal fron porch: %u", t.hSync); 65511090Sandreas.sandberg@arm.com 65611090Sandreas.sandberg@arm.com inform("PixelPump vertical back porch: %u", t.vBackPorch); 65711090Sandreas.sandberg@arm.com inform("PixelPump vertical fron porch: %u", t.vFrontPorch); 65811090Sandreas.sandberg@arm.com inform("PixelPump vertical fron porch: %u", t.vSync); 65911090Sandreas.sandberg@arm.com} 66011090Sandreas.sandberg@arm.com 66111090Sandreas.sandberg@arm.com 6629646SChris.Emmons@arm.comHDLcd * 6639646SChris.Emmons@arm.comHDLcdParams::create() 6649646SChris.Emmons@arm.com{ 6659646SChris.Emmons@arm.com return new HDLcd(this); 6669646SChris.Emmons@arm.com} 667