hdlcd.cc revision 11359
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{ 10011091Sandreas.sandberg@arm.com using namespace Stats; 10111091Sandreas.sandberg@arm.com 10211091Sandreas.sandberg@arm.com stats.underruns 10311091Sandreas.sandberg@arm.com .name(name() + ".underruns") 10411091Sandreas.sandberg@arm.com .desc("number of buffer underruns") 10511091Sandreas.sandberg@arm.com .flags(nozero) 10611091Sandreas.sandberg@arm.com ; 10711091Sandreas.sandberg@arm.com} 10811091Sandreas.sandberg@arm.com 10911091Sandreas.sandberg@arm.comvoid 11011090Sandreas.sandberg@arm.comHDLcd::serialize(CheckpointOut &cp) const 11111090Sandreas.sandberg@arm.com{ 11211090Sandreas.sandberg@arm.com DPRINTF(Checkpoint, "Serializing ARM HDLCD\n"); 11311090Sandreas.sandberg@arm.com 11411090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(int_rawstat); 11511090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(int_mask); 11611090Sandreas.sandberg@arm.com 11711090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(fb_base); 11811090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(fb_line_length); 11911090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(fb_line_count); 12011090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(fb_line_pitch); 12111090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(bus_options); 12211090Sandreas.sandberg@arm.com 12311090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(v_sync); 12411090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(v_back_porch); 12511090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(v_data); 12611090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(v_front_porch); 12711090Sandreas.sandberg@arm.com 12811090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(h_sync); 12911090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(h_back_porch); 13011090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(h_data); 13111090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(h_front_porch); 13211090Sandreas.sandberg@arm.com 13311090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(polarities); 13411090Sandreas.sandberg@arm.com 13511090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(command); 13611090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(pixel_format); 13711090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(red_select); 13811090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(green_select); 13911090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(blue_select); 14011090Sandreas.sandberg@arm.com 14111090Sandreas.sandberg@arm.com SERIALIZE_OBJ(pixelPump); 14211090Sandreas.sandberg@arm.com if (enabled()) 14311090Sandreas.sandberg@arm.com dmaEngine->serializeSection(cp, "dmaEngine"); 14411090Sandreas.sandberg@arm.com} 14511090Sandreas.sandberg@arm.com 14611090Sandreas.sandberg@arm.comvoid 14711090Sandreas.sandberg@arm.comHDLcd::unserialize(CheckpointIn &cp) 14811090Sandreas.sandberg@arm.com{ 14911090Sandreas.sandberg@arm.com DPRINTF(Checkpoint, "Unserializing ARM HDLCD\n"); 15011090Sandreas.sandberg@arm.com 15111090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(int_rawstat); 15211090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(int_mask); 15311090Sandreas.sandberg@arm.com 15411090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(fb_base); 15511090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(fb_line_length); 15611090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(fb_line_count); 15711090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(fb_line_pitch); 15811090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(bus_options); 15911090Sandreas.sandberg@arm.com 16011090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(v_sync); 16111090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(v_back_porch); 16211090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(v_data); 16311090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(v_front_porch); 16411090Sandreas.sandberg@arm.com 16511090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(h_sync); 16611090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(h_back_porch); 16711090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(h_data); 16811090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(h_front_porch); 16911090Sandreas.sandberg@arm.com 17011090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(polarities); 17111090Sandreas.sandberg@arm.com 17211090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(command); 17311090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(pixel_format); 17411090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(red_select); 17511090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(green_select); 17611090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(blue_select); 17711090Sandreas.sandberg@arm.com 17811090Sandreas.sandberg@arm.com { 17911090Sandreas.sandberg@arm.com // Try to unserialize the pixel pump. It might not exist if 18011090Sandreas.sandberg@arm.com // we're unserializing an old checkpoint. 18111090Sandreas.sandberg@arm.com ScopedCheckpointSection sec(cp, "pixelPump"); 18211090Sandreas.sandberg@arm.com if (cp.sectionExists(Serializable::currentSection())) 18311090Sandreas.sandberg@arm.com pixelPump.unserialize(cp); 18411090Sandreas.sandberg@arm.com } 18511090Sandreas.sandberg@arm.com 18611090Sandreas.sandberg@arm.com if (enabled()) { 18711090Sandreas.sandberg@arm.com // Create the DMA engine and read its state from the 18811090Sandreas.sandberg@arm.com // checkpoint. We don't need to worry about the pixel pump as 18911090Sandreas.sandberg@arm.com // it is a proper SimObject. 19011090Sandreas.sandberg@arm.com createDmaEngine(); 19111090Sandreas.sandberg@arm.com dmaEngine->unserializeSection(cp, "dmaEngine"); 19211090Sandreas.sandberg@arm.com 19311090Sandreas.sandberg@arm.com conv = pixelConverter(); 19411090Sandreas.sandberg@arm.com } 19511090Sandreas.sandberg@arm.com} 19611090Sandreas.sandberg@arm.com 19711090Sandreas.sandberg@arm.comvoid 19811090Sandreas.sandberg@arm.comHDLcd::drainResume() 19911090Sandreas.sandberg@arm.com{ 20011090Sandreas.sandberg@arm.com AmbaDmaDevice::drainResume(); 20111090Sandreas.sandberg@arm.com 20211090Sandreas.sandberg@arm.com // We restored from an old checkpoint without a pixel pump, start 20311090Sandreas.sandberg@arm.com // an new refresh. This typically happens when restoring from old 20411090Sandreas.sandberg@arm.com // checkpoints. 20511090Sandreas.sandberg@arm.com if (enabled() && !pixelPump.active()) 20611090Sandreas.sandberg@arm.com pixelPump.start(displayTimings()); 20711090Sandreas.sandberg@arm.com 20811090Sandreas.sandberg@arm.com // We restored from a checkpoint and need to update the VNC server 20911090Sandreas.sandberg@arm.com if (pixelPump.active() && vnc) 21011090Sandreas.sandberg@arm.com vnc->setDirty(); 21111090Sandreas.sandberg@arm.com} 21211090Sandreas.sandberg@arm.com 2139646SChris.Emmons@arm.com// read registers and frame buffer 2149646SChris.Emmons@arm.comTick 2159646SChris.Emmons@arm.comHDLcd::read(PacketPtr pkt) 2169646SChris.Emmons@arm.com{ 21711090Sandreas.sandberg@arm.com assert(pkt->getAddr() >= pioAddr && 21811090Sandreas.sandberg@arm.com pkt->getAddr() < pioAddr + pioSize); 2199646SChris.Emmons@arm.com 22011090Sandreas.sandberg@arm.com const Addr daddr(pkt->getAddr() - pioAddr); 22111090Sandreas.sandberg@arm.com panic_if(pkt->getSize() != 4, 22211090Sandreas.sandberg@arm.com "Unhandled read size (address: 0x.4x, size: %u)", 22311090Sandreas.sandberg@arm.com daddr, pkt->getSize()); 2249646SChris.Emmons@arm.com 22511090Sandreas.sandberg@arm.com const uint32_t data(readReg(daddr)); 22611090Sandreas.sandberg@arm.com DPRINTF(HDLcd, "read register 0x%04x: 0x%x\n", daddr, data); 2279646SChris.Emmons@arm.com 2289646SChris.Emmons@arm.com pkt->set<uint32_t>(data); 2299646SChris.Emmons@arm.com pkt->makeAtomicResponse(); 2309646SChris.Emmons@arm.com return pioDelay; 2319646SChris.Emmons@arm.com} 2329646SChris.Emmons@arm.com 2339646SChris.Emmons@arm.com// write registers and frame buffer 2349646SChris.Emmons@arm.comTick 2359646SChris.Emmons@arm.comHDLcd::write(PacketPtr pkt) 2369646SChris.Emmons@arm.com{ 2379646SChris.Emmons@arm.com assert(pkt->getAddr() >= pioAddr && 23811090Sandreas.sandberg@arm.com pkt->getAddr() < pioAddr + pioSize); 2399646SChris.Emmons@arm.com 24011090Sandreas.sandberg@arm.com const Addr daddr(pkt->getAddr() - pioAddr); 24111090Sandreas.sandberg@arm.com panic_if(pkt->getSize() != 4, 24211090Sandreas.sandberg@arm.com "Unhandled read size (address: 0x.4x, size: %u)", 24311090Sandreas.sandberg@arm.com daddr, pkt->getSize()); 24411090Sandreas.sandberg@arm.com const uint32_t data(pkt->get<uint32_t>()); 24511090Sandreas.sandberg@arm.com DPRINTF(HDLcd, "write register 0x%04x: 0x%x\n", daddr, data); 2469646SChris.Emmons@arm.com 24711090Sandreas.sandberg@arm.com writeReg(daddr, data); 2489646SChris.Emmons@arm.com 2499646SChris.Emmons@arm.com pkt->makeAtomicResponse(); 2509646SChris.Emmons@arm.com return pioDelay; 2519646SChris.Emmons@arm.com} 2529646SChris.Emmons@arm.com 25311090Sandreas.sandberg@arm.comuint32_t 25411090Sandreas.sandberg@arm.comHDLcd::readReg(Addr offset) 2559646SChris.Emmons@arm.com{ 25611090Sandreas.sandberg@arm.com switch (offset) { 25711090Sandreas.sandberg@arm.com case Version: return version; 25810839Sandreas.sandberg@arm.com 25911090Sandreas.sandberg@arm.com case Int_RawStat: return int_rawstat; 26011090Sandreas.sandberg@arm.com case Int_Clear: 26111090Sandreas.sandberg@arm.com panic("HDLCD INT_CLEAR register is Write-Only\n"); 26211090Sandreas.sandberg@arm.com case Int_Mask: return int_mask; 26311090Sandreas.sandberg@arm.com case Int_Status: return intStatus(); 2649646SChris.Emmons@arm.com 26511090Sandreas.sandberg@arm.com case Fb_Base: return fb_base; 26611090Sandreas.sandberg@arm.com case Fb_Line_Length: return fb_line_length; 26711090Sandreas.sandberg@arm.com case Fb_Line_Count: return fb_line_count; 26811090Sandreas.sandberg@arm.com case Fb_Line_Pitch: return fb_line_pitch; 26911090Sandreas.sandberg@arm.com case Bus_Options: return bus_options; 2709646SChris.Emmons@arm.com 27111090Sandreas.sandberg@arm.com case V_Sync: return v_sync; 27211090Sandreas.sandberg@arm.com case V_Back_Porch: return v_back_porch; 27311090Sandreas.sandberg@arm.com case V_Data: return v_data; 27411090Sandreas.sandberg@arm.com case V_Front_Porch: return v_front_porch; 27511090Sandreas.sandberg@arm.com case H_Sync: return h_sync; 27611090Sandreas.sandberg@arm.com case H_Back_Porch: return h_back_porch; 27711090Sandreas.sandberg@arm.com case H_Data: return h_data; 27811090Sandreas.sandberg@arm.com case H_Front_Porch: return h_front_porch; 27911090Sandreas.sandberg@arm.com case Polarities: return polarities; 28010839Sandreas.sandberg@arm.com 28111090Sandreas.sandberg@arm.com case Command: return command; 28211090Sandreas.sandberg@arm.com case Pixel_Format: return pixel_format; 28311090Sandreas.sandberg@arm.com case Red_Select: return red_select; 28411090Sandreas.sandberg@arm.com case Green_Select: return green_select; 28511090Sandreas.sandberg@arm.com case Blue_Select: return blue_select; 28610839Sandreas.sandberg@arm.com 28711090Sandreas.sandberg@arm.com default: 28811090Sandreas.sandberg@arm.com panic("Tried to read HDLCD register that doesn't exist\n", offset); 2899646SChris.Emmons@arm.com } 2909646SChris.Emmons@arm.com} 2919646SChris.Emmons@arm.com 2929646SChris.Emmons@arm.comvoid 29311090Sandreas.sandberg@arm.comHDLcd::writeReg(Addr offset, uint32_t value) 2949646SChris.Emmons@arm.com{ 29511090Sandreas.sandberg@arm.com switch (offset) { 29611090Sandreas.sandberg@arm.com case Version: 29711090Sandreas.sandberg@arm.com panic("HDLCD VERSION register is read-Only\n"); 2989646SChris.Emmons@arm.com 29911090Sandreas.sandberg@arm.com case Int_RawStat: 30011090Sandreas.sandberg@arm.com intRaise(value); 30111090Sandreas.sandberg@arm.com return; 30211090Sandreas.sandberg@arm.com case Int_Clear: 30311090Sandreas.sandberg@arm.com intClear(value); 30411090Sandreas.sandberg@arm.com return; 30511090Sandreas.sandberg@arm.com case Int_Mask: 30611090Sandreas.sandberg@arm.com intMask(value); 30711090Sandreas.sandberg@arm.com return; 30811090Sandreas.sandberg@arm.com case Int_Status: 30911090Sandreas.sandberg@arm.com panic("HDLCD INT_STATUS register is read-Only\n"); 31011090Sandreas.sandberg@arm.com break; 31111090Sandreas.sandberg@arm.com 31211090Sandreas.sandberg@arm.com case Fb_Base: 31311090Sandreas.sandberg@arm.com fb_base = value; 31411090Sandreas.sandberg@arm.com return; 31511090Sandreas.sandberg@arm.com 31611090Sandreas.sandberg@arm.com case Fb_Line_Length: 31711090Sandreas.sandberg@arm.com fb_line_length = value; 31811090Sandreas.sandberg@arm.com return; 31911090Sandreas.sandberg@arm.com 32011090Sandreas.sandberg@arm.com case Fb_Line_Count: 32111090Sandreas.sandberg@arm.com fb_line_count = value; 32211090Sandreas.sandberg@arm.com return; 32311090Sandreas.sandberg@arm.com 32411090Sandreas.sandberg@arm.com case Fb_Line_Pitch: 32511090Sandreas.sandberg@arm.com fb_line_pitch = value; 32611090Sandreas.sandberg@arm.com return; 32711090Sandreas.sandberg@arm.com 32811090Sandreas.sandberg@arm.com case Bus_Options: { 32911090Sandreas.sandberg@arm.com const BusOptsReg old_bus_options(bus_options); 33011090Sandreas.sandberg@arm.com bus_options = value; 33111090Sandreas.sandberg@arm.com 33211090Sandreas.sandberg@arm.com if (bus_options.max_outstanding != old_bus_options.max_outstanding) { 33311090Sandreas.sandberg@arm.com DPRINTF(HDLcd, 33411090Sandreas.sandberg@arm.com "Changing HDLcd outstanding DMA transactions: %d -> %d\n", 33511090Sandreas.sandberg@arm.com old_bus_options.max_outstanding, 33611090Sandreas.sandberg@arm.com bus_options.max_outstanding); 33711090Sandreas.sandberg@arm.com 33811090Sandreas.sandberg@arm.com } 33911090Sandreas.sandberg@arm.com 34011090Sandreas.sandberg@arm.com if (bus_options.burst_len != old_bus_options.burst_len) { 34111090Sandreas.sandberg@arm.com DPRINTF(HDLcd, 34211090Sandreas.sandberg@arm.com "Changing HDLcd DMA burst flags: 0x%x -> 0x%x\n", 34311090Sandreas.sandberg@arm.com old_bus_options.burst_len, bus_options.burst_len); 34411090Sandreas.sandberg@arm.com } 34511090Sandreas.sandberg@arm.com } return; 34611090Sandreas.sandberg@arm.com 34711090Sandreas.sandberg@arm.com case V_Sync: 34811090Sandreas.sandberg@arm.com v_sync = value; 34911090Sandreas.sandberg@arm.com return; 35011090Sandreas.sandberg@arm.com case V_Back_Porch: 35111090Sandreas.sandberg@arm.com v_back_porch = value; 35211090Sandreas.sandberg@arm.com return; 35311090Sandreas.sandberg@arm.com case V_Data: 35411090Sandreas.sandberg@arm.com v_data = value; 35511090Sandreas.sandberg@arm.com return; 35611090Sandreas.sandberg@arm.com case V_Front_Porch: 35711090Sandreas.sandberg@arm.com v_front_porch = value; 35811090Sandreas.sandberg@arm.com return; 35911090Sandreas.sandberg@arm.com 36011090Sandreas.sandberg@arm.com case H_Sync: 36111090Sandreas.sandberg@arm.com h_sync = value; 36211090Sandreas.sandberg@arm.com return; 36311090Sandreas.sandberg@arm.com case H_Back_Porch: 36411090Sandreas.sandberg@arm.com h_back_porch = value; 36511090Sandreas.sandberg@arm.com return; 36611090Sandreas.sandberg@arm.com case H_Data: 36711090Sandreas.sandberg@arm.com h_data = value; 36811090Sandreas.sandberg@arm.com return; 36911090Sandreas.sandberg@arm.com case H_Front_Porch: 37011090Sandreas.sandberg@arm.com h_front_porch = value; 37111090Sandreas.sandberg@arm.com return; 37211090Sandreas.sandberg@arm.com 37311090Sandreas.sandberg@arm.com case Polarities: 37411090Sandreas.sandberg@arm.com polarities = value; 37511090Sandreas.sandberg@arm.com return; 37611090Sandreas.sandberg@arm.com 37711090Sandreas.sandberg@arm.com case Command: { 37811090Sandreas.sandberg@arm.com const CommandReg new_command(value); 37911090Sandreas.sandberg@arm.com 38011090Sandreas.sandberg@arm.com if (new_command.enable != command.enable) { 38111090Sandreas.sandberg@arm.com DPRINTF(HDLcd, "HDLCD switched %s\n", 38211090Sandreas.sandberg@arm.com new_command.enable ? "on" : "off"); 38311090Sandreas.sandberg@arm.com 38411090Sandreas.sandberg@arm.com if (new_command.enable) { 38511090Sandreas.sandberg@arm.com cmdEnable(); 38611090Sandreas.sandberg@arm.com } else { 38711090Sandreas.sandberg@arm.com cmdDisable(); 38811090Sandreas.sandberg@arm.com } 38911090Sandreas.sandberg@arm.com } 39011090Sandreas.sandberg@arm.com command = new_command; 39111090Sandreas.sandberg@arm.com } return; 39211090Sandreas.sandberg@arm.com 39311090Sandreas.sandberg@arm.com case Pixel_Format: 39411090Sandreas.sandberg@arm.com pixel_format = value; 39511090Sandreas.sandberg@arm.com return; 39611090Sandreas.sandberg@arm.com 39711090Sandreas.sandberg@arm.com case Red_Select: 39811090Sandreas.sandberg@arm.com red_select = value; 39911090Sandreas.sandberg@arm.com return; 40011090Sandreas.sandberg@arm.com case Green_Select: 40111090Sandreas.sandberg@arm.com green_select = value; 40211090Sandreas.sandberg@arm.com return; 40311090Sandreas.sandberg@arm.com case Blue_Select: 40411090Sandreas.sandberg@arm.com blue_select = value; 40511090Sandreas.sandberg@arm.com return; 40611090Sandreas.sandberg@arm.com 40711090Sandreas.sandberg@arm.com default: 40811090Sandreas.sandberg@arm.com panic("Tried to write HDLCD register that doesn't exist\n", offset); 40911090Sandreas.sandberg@arm.com return; 4109646SChris.Emmons@arm.com } 4119646SChris.Emmons@arm.com} 4129646SChris.Emmons@arm.com 41310839Sandreas.sandberg@arm.comPixelConverter 41410839Sandreas.sandberg@arm.comHDLcd::pixelConverter() const 41510839Sandreas.sandberg@arm.com{ 41610840Sandreas.sandberg@arm.com ByteOrder byte_order( 41710839Sandreas.sandberg@arm.com pixel_format.big_endian ? BigEndianByteOrder : LittleEndianByteOrder); 41810840Sandreas.sandberg@arm.com 41910840Sandreas.sandberg@arm.com /* Some Linux kernels have a broken driver that swaps the red and 42010840Sandreas.sandberg@arm.com * blue color select registers. */ 42111090Sandreas.sandberg@arm.com if (!workaroundSwapRB) { 42210840Sandreas.sandberg@arm.com return PixelConverter( 42311090Sandreas.sandberg@arm.com pixel_format.bytes_per_pixel + 1, 42410840Sandreas.sandberg@arm.com red_select.offset, green_select.offset, blue_select.offset, 42510840Sandreas.sandberg@arm.com red_select.size, green_select.size, blue_select.size, 42610840Sandreas.sandberg@arm.com byte_order); 42710840Sandreas.sandberg@arm.com } else { 42810840Sandreas.sandberg@arm.com return PixelConverter( 42911090Sandreas.sandberg@arm.com pixel_format.bytes_per_pixel + 1, 43010840Sandreas.sandberg@arm.com blue_select.offset, green_select.offset, red_select.offset, 43110840Sandreas.sandberg@arm.com blue_select.size, green_select.size, red_select.size, 43210840Sandreas.sandberg@arm.com byte_order); 43310840Sandreas.sandberg@arm.com } 43410839Sandreas.sandberg@arm.com} 43510839Sandreas.sandberg@arm.com 43611090Sandreas.sandberg@arm.comDisplayTimings 43711090Sandreas.sandberg@arm.comHDLcd::displayTimings() const 43811090Sandreas.sandberg@arm.com{ 43911090Sandreas.sandberg@arm.com return DisplayTimings( 44011090Sandreas.sandberg@arm.com h_data.val + 1, v_data.val + 1, 44111090Sandreas.sandberg@arm.com h_back_porch.val + 1, h_sync.val + 1, h_front_porch.val + 1, 44211090Sandreas.sandberg@arm.com v_back_porch.val + 1, v_sync.val + 1, v_front_porch.val + 1); 44311090Sandreas.sandberg@arm.com} 44411090Sandreas.sandberg@arm.com 4459646SChris.Emmons@arm.comvoid 44611090Sandreas.sandberg@arm.comHDLcd::createDmaEngine() 44711090Sandreas.sandberg@arm.com{ 44811090Sandreas.sandberg@arm.com if (bus_options.max_outstanding == 0) { 44911090Sandreas.sandberg@arm.com warn("Maximum number of outstanding DMA transfers set to 0."); 45011090Sandreas.sandberg@arm.com return; 45111090Sandreas.sandberg@arm.com } 4529646SChris.Emmons@arm.com 45311090Sandreas.sandberg@arm.com const uint32_t dma_burst_flags(bus_options.burst_len); 45411090Sandreas.sandberg@arm.com const uint32_t dma_burst_len( 45511090Sandreas.sandberg@arm.com dma_burst_flags ? 45611090Sandreas.sandberg@arm.com (1UL << (findMsbSet(dma_burst_flags) - 1)) : 45711090Sandreas.sandberg@arm.com MAX_BURST_LEN); 45811090Sandreas.sandberg@arm.com // Some drivers seem to set the DMA line count incorrectly. This 45911090Sandreas.sandberg@arm.com // could either be a driver bug or a specification bug. Unlike for 46011090Sandreas.sandberg@arm.com // timings, the specification does not require 1 to be added to 46111090Sandreas.sandberg@arm.com // the DMA engine's line count. 46211090Sandreas.sandberg@arm.com const uint32_t dma_lines( 46311090Sandreas.sandberg@arm.com fb_line_count + (workaroundDmaLineCount ? 1 : 0)); 46411090Sandreas.sandberg@arm.com 46511090Sandreas.sandberg@arm.com dmaEngine.reset(new DmaEngine( 46611090Sandreas.sandberg@arm.com *this, pixelBufferSize, 46711090Sandreas.sandberg@arm.com AXI_PORT_WIDTH * dma_burst_len, 46811090Sandreas.sandberg@arm.com bus_options.max_outstanding, 46911090Sandreas.sandberg@arm.com fb_line_length, fb_line_pitch, dma_lines)); 47011090Sandreas.sandberg@arm.com} 47111090Sandreas.sandberg@arm.com 47211090Sandreas.sandberg@arm.comvoid 47311090Sandreas.sandberg@arm.comHDLcd::cmdEnable() 47411090Sandreas.sandberg@arm.com{ 47511090Sandreas.sandberg@arm.com createDmaEngine(); 47611090Sandreas.sandberg@arm.com conv = pixelConverter(); 47711090Sandreas.sandberg@arm.com pixelPump.start(displayTimings()); 47811090Sandreas.sandberg@arm.com} 47911090Sandreas.sandberg@arm.com 48011090Sandreas.sandberg@arm.comvoid 48111090Sandreas.sandberg@arm.comHDLcd::cmdDisable() 48211090Sandreas.sandberg@arm.com{ 48311090Sandreas.sandberg@arm.com pixelPump.stop(); 48411090Sandreas.sandberg@arm.com dmaEngine->abortFrame(); 48511090Sandreas.sandberg@arm.com} 48611090Sandreas.sandberg@arm.com 48711090Sandreas.sandberg@arm.combool 48811090Sandreas.sandberg@arm.comHDLcd::pxlNext(Pixel &p) 48911090Sandreas.sandberg@arm.com{ 49011090Sandreas.sandberg@arm.com uint8_t pixel_data[MAX_PIXEL_SIZE]; 49111090Sandreas.sandberg@arm.com assert(conv.length <= sizeof(pixel_data)); 49211090Sandreas.sandberg@arm.com if (dmaEngine->tryGet(pixel_data, conv.length)) { 49311090Sandreas.sandberg@arm.com p = conv.toPixel(pixel_data); 49411090Sandreas.sandberg@arm.com return true; 49511090Sandreas.sandberg@arm.com } else { 49611090Sandreas.sandberg@arm.com return false; 49711090Sandreas.sandberg@arm.com } 49811090Sandreas.sandberg@arm.com} 49911090Sandreas.sandberg@arm.com 50011090Sandreas.sandberg@arm.comvoid 50111090Sandreas.sandberg@arm.comHDLcd::pxlVSyncBegin() 50211090Sandreas.sandberg@arm.com{ 50311090Sandreas.sandberg@arm.com DPRINTF(HDLcd, "Raising VSYNC interrupt.\n"); 50411090Sandreas.sandberg@arm.com intRaise(INT_VSYNC); 50511090Sandreas.sandberg@arm.com} 50611090Sandreas.sandberg@arm.com 50711090Sandreas.sandberg@arm.comvoid 50811090Sandreas.sandberg@arm.comHDLcd::pxlVSyncEnd() 50911090Sandreas.sandberg@arm.com{ 51011090Sandreas.sandberg@arm.com DPRINTF(HDLcd, "End of VSYNC, starting DMA engine\n"); 51111090Sandreas.sandberg@arm.com dmaEngine->startFrame(fb_base); 51211090Sandreas.sandberg@arm.com} 51311090Sandreas.sandberg@arm.com 51411090Sandreas.sandberg@arm.comvoid 51511090Sandreas.sandberg@arm.comHDLcd::pxlUnderrun() 51611090Sandreas.sandberg@arm.com{ 51711090Sandreas.sandberg@arm.com DPRINTF(HDLcd, "Buffer underrun, stopping DMA fill.\n"); 51811091Sandreas.sandberg@arm.com ++stats.underruns; 51911090Sandreas.sandberg@arm.com intRaise(INT_UNDERRUN); 52011090Sandreas.sandberg@arm.com dmaEngine->abortFrame(); 52111090Sandreas.sandberg@arm.com} 52211090Sandreas.sandberg@arm.com 52311090Sandreas.sandberg@arm.comvoid 52411090Sandreas.sandberg@arm.comHDLcd::pxlFrameDone() 52511090Sandreas.sandberg@arm.com{ 52611090Sandreas.sandberg@arm.com DPRINTF(HDLcd, "Reached end of last visible line.\n"); 52711090Sandreas.sandberg@arm.com 52811090Sandreas.sandberg@arm.com if (dmaEngine->size()) { 52911090Sandreas.sandberg@arm.com warn("HDLCD %u bytes still in FIFO after frame: Ensure that DMA " 53011090Sandreas.sandberg@arm.com "and PixelPump configuration is consistent\n", 53111090Sandreas.sandberg@arm.com dmaEngine->size()); 53211090Sandreas.sandberg@arm.com dmaEngine->dumpSettings(); 53311090Sandreas.sandberg@arm.com pixelPump.dumpSettings(); 53411090Sandreas.sandberg@arm.com } 53510839Sandreas.sandberg@arm.com 5369646SChris.Emmons@arm.com if (vnc) 5379646SChris.Emmons@arm.com vnc->setDirty(); 5389646SChris.Emmons@arm.com 5399939Sdam.sunwoo@arm.com if (enableCapture) { 54011090Sandreas.sandberg@arm.com if (!pic) { 54111090Sandreas.sandberg@arm.com pic = simout.create( 54211090Sandreas.sandberg@arm.com csprintf("%s.framebuffer.bmp", sys->name()), 54311090Sandreas.sandberg@arm.com true); 54411090Sandreas.sandberg@arm.com } 5459646SChris.Emmons@arm.com 5469939Sdam.sunwoo@arm.com assert(pic); 54711359Sandreas@sandberg.pp.se pic->stream()->seekp(0); 54811359Sandreas@sandberg.pp.se bmp.write(*pic->stream()); 5499939Sdam.sunwoo@arm.com } 5509646SChris.Emmons@arm.com} 5519646SChris.Emmons@arm.com 5529646SChris.Emmons@arm.comvoid 55311090Sandreas.sandberg@arm.comHDLcd::setInterrupts(uint32_t ints, uint32_t mask) 5549646SChris.Emmons@arm.com{ 55511090Sandreas.sandberg@arm.com const bool old_ints(intStatus()); 5569646SChris.Emmons@arm.com 55711090Sandreas.sandberg@arm.com int_mask = mask; 55811090Sandreas.sandberg@arm.com int_rawstat = ints; 5599646SChris.Emmons@arm.com 56011090Sandreas.sandberg@arm.com if (!old_ints && intStatus()) { 56111090Sandreas.sandberg@arm.com gic->sendInt(intNum); 56211090Sandreas.sandberg@arm.com } else if (old_ints && !intStatus()) { 56311090Sandreas.sandberg@arm.com gic->clearInt(intNum); 5649646SChris.Emmons@arm.com } 5659646SChris.Emmons@arm.com} 5669646SChris.Emmons@arm.com 56711090Sandreas.sandberg@arm.comHDLcd::DmaEngine::DmaEngine(HDLcd &_parent, size_t size, 56811090Sandreas.sandberg@arm.com unsigned request_size, unsigned max_pending, 56911090Sandreas.sandberg@arm.com size_t line_size, ssize_t line_pitch, unsigned num_lines) 57011090Sandreas.sandberg@arm.com : DmaReadFifo( 57111090Sandreas.sandberg@arm.com _parent.dmaPort, size, request_size, max_pending, 57211090Sandreas.sandberg@arm.com Request::UNCACHEABLE), 57311090Sandreas.sandberg@arm.com parent(_parent), 57411090Sandreas.sandberg@arm.com lineSize(line_size), linePitch(line_pitch), numLines(num_lines), 57511090Sandreas.sandberg@arm.com nextLineAddr(0) 5769646SChris.Emmons@arm.com{ 5779646SChris.Emmons@arm.com} 5789646SChris.Emmons@arm.com 5799646SChris.Emmons@arm.comvoid 58011090Sandreas.sandberg@arm.comHDLcd::DmaEngine::serialize(CheckpointOut &cp) const 5819646SChris.Emmons@arm.com{ 58211090Sandreas.sandberg@arm.com DmaReadFifo::serialize(cp); 5839646SChris.Emmons@arm.com 58411090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(nextLineAddr); 58511090Sandreas.sandberg@arm.com SERIALIZE_SCALAR(frameEnd); 5869646SChris.Emmons@arm.com} 5879646SChris.Emmons@arm.com 5889646SChris.Emmons@arm.comvoid 58911090Sandreas.sandberg@arm.comHDLcd::DmaEngine::unserialize(CheckpointIn &cp) 5909646SChris.Emmons@arm.com{ 59111090Sandreas.sandberg@arm.com DmaReadFifo::unserialize(cp); 5929646SChris.Emmons@arm.com 59311090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(nextLineAddr); 59411090Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(frameEnd); 5959646SChris.Emmons@arm.com} 5969646SChris.Emmons@arm.com 59711090Sandreas.sandberg@arm.comvoid 59811090Sandreas.sandberg@arm.comHDLcd::DmaEngine::startFrame(Addr fb_base) 5999646SChris.Emmons@arm.com{ 60011090Sandreas.sandberg@arm.com nextLineAddr = fb_base; 60111090Sandreas.sandberg@arm.com frameEnd = fb_base + numLines * linePitch; 60211090Sandreas.sandberg@arm.com 60311090Sandreas.sandberg@arm.com startFill(nextLineAddr, lineSize); 6049646SChris.Emmons@arm.com} 6059646SChris.Emmons@arm.com 60611090Sandreas.sandberg@arm.comvoid 60711090Sandreas.sandberg@arm.comHDLcd::DmaEngine::abortFrame() 60811090Sandreas.sandberg@arm.com{ 60911090Sandreas.sandberg@arm.com nextLineAddr = frameEnd; 61011090Sandreas.sandberg@arm.com stopFill(); 61111090Sandreas.sandberg@arm.com flush(); 61211090Sandreas.sandberg@arm.com} 61311090Sandreas.sandberg@arm.com 61411090Sandreas.sandberg@arm.com 61511090Sandreas.sandberg@arm.comvoid 61611090Sandreas.sandberg@arm.comHDLcd::DmaEngine::dumpSettings() 61711090Sandreas.sandberg@arm.com{ 61811090Sandreas.sandberg@arm.com inform("DMA line size: %u bytes", lineSize); 61911090Sandreas.sandberg@arm.com inform("DMA line pitch: %i bytes", linePitch); 62011090Sandreas.sandberg@arm.com inform("DMA num lines: %u", numLines); 62111090Sandreas.sandberg@arm.com} 62211090Sandreas.sandberg@arm.com 62311090Sandreas.sandberg@arm.comvoid 62411090Sandreas.sandberg@arm.comHDLcd::DmaEngine::onEndOfBlock() 62511090Sandreas.sandberg@arm.com{ 62611090Sandreas.sandberg@arm.com if (nextLineAddr == frameEnd) 62711090Sandreas.sandberg@arm.com // We're done with this frame. Ignore calls to this method 62811090Sandreas.sandberg@arm.com // until the next frame has been started. 62911090Sandreas.sandberg@arm.com return; 63011090Sandreas.sandberg@arm.com 63111090Sandreas.sandberg@arm.com nextLineAddr += linePitch; 63211090Sandreas.sandberg@arm.com if (nextLineAddr != frameEnd) 63311090Sandreas.sandberg@arm.com startFill(nextLineAddr, lineSize); 63411090Sandreas.sandberg@arm.com} 63511090Sandreas.sandberg@arm.com 63611090Sandreas.sandberg@arm.comvoid 63711090Sandreas.sandberg@arm.comHDLcd::DmaEngine::onIdle() 63811090Sandreas.sandberg@arm.com{ 63911090Sandreas.sandberg@arm.com parent.intRaise(INT_DMA_END); 64011090Sandreas.sandberg@arm.com} 64111090Sandreas.sandberg@arm.com 64211090Sandreas.sandberg@arm.comvoid 64311090Sandreas.sandberg@arm.comHDLcd::PixelPump::dumpSettings() 64411090Sandreas.sandberg@arm.com{ 64511090Sandreas.sandberg@arm.com const DisplayTimings &t(timings()); 64611090Sandreas.sandberg@arm.com 64711090Sandreas.sandberg@arm.com inform("PixelPump width: %u", t.width); 64811090Sandreas.sandberg@arm.com inform("PixelPump height: %u", t.height); 64911090Sandreas.sandberg@arm.com 65011090Sandreas.sandberg@arm.com inform("PixelPump horizontal back porch: %u", t.hBackPorch); 65111090Sandreas.sandberg@arm.com inform("PixelPump horizontal fron porch: %u", t.hFrontPorch); 65211090Sandreas.sandberg@arm.com inform("PixelPump horizontal fron porch: %u", t.hSync); 65311090Sandreas.sandberg@arm.com 65411090Sandreas.sandberg@arm.com inform("PixelPump vertical back porch: %u", t.vBackPorch); 65511090Sandreas.sandberg@arm.com inform("PixelPump vertical fron porch: %u", t.vFrontPorch); 65611090Sandreas.sandberg@arm.com inform("PixelPump vertical fron porch: %u", t.vSync); 65711090Sandreas.sandberg@arm.com} 65811090Sandreas.sandberg@arm.com 65911090Sandreas.sandberg@arm.com 6609646SChris.Emmons@arm.comHDLcd * 6619646SChris.Emmons@arm.comHDLcdParams::create() 6629646SChris.Emmons@arm.com{ 6639646SChris.Emmons@arm.com return new HDLcd(this); 6649646SChris.Emmons@arm.com} 665