mirror of https://github.com/PCSX2/pcsx2.git
334 lines
8.2 KiB
C++
334 lines
8.2 KiB
C++
/* DEV9null
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* Copyright (C) 2002-2010 PCSX2 Dev Team
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*
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* PCSX2 is free software: you can redistribute it and/or modify it under the terms
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* of the GNU Lesser General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* PCSX2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with PCSX2.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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// Note: I was using MegaDev9, dev9ghzdrk, and dev9linuz for reference on memory locations.
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// The ones I included were just some of the more important ones, so you may want to look
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// at the plugins I mentioned if trying to create your own dev9 plugin.
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// Additionally, there is a lot of information in the ps2drv drivers by Marcus R. Brown, so
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// looking through its code would be a good starting point.
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// Look under tags/plugins in svn for any older plugins that aren't included in pcsx2 any more.
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// --arcum42
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <string>
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using namespace std;
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#include "DEV9.h"
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#include "svnrev.h"
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const unsigned char version = PS2E_DEV9_VERSION;
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const unsigned char revision = 0;
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const unsigned char build = 5; // increase that with each version
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static char libraryName[256];
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// Our IRQ call.
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void (*DEV9irq)(int);
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__aligned16 s8 dev9regs[0x10000];
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string s_strIniPath = "inis";
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string s_strLogPath = "logs";
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PluginLog Dev9Log;
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Config conf;
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void LogInit()
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{
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const std::string LogFile(s_strLogPath + "/dev9null.log");
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setLoggingState();
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Dev9Log.Open(LogFile);
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}
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EXPORT_C_(void)
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DEV9setLogDir(const char *dir)
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{
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// Get the path to the log directory.
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s_strLogPath = (dir == NULL) ? "logs" : dir;
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// Reload the log file after updated the path
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Dev9Log.Close();
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LogInit();
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}
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EXPORT_C_(u32)
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PS2EgetLibType()
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{
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return PS2E_LT_DEV9;
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}
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EXPORT_C_(const char *)
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PS2EgetLibName()
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{
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snprintf(libraryName, 255, "DEV9null Driver %lld%s", SVN_REV, SVN_MODS ? "m" : "");
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return libraryName;
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}
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EXPORT_C_(u32)
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PS2EgetLibVersion2(u32 type)
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{
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return (version << 16) | (revision << 8) | build;
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}
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EXPORT_C_(s32)
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DEV9init()
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{
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LoadConfig();
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setLoggingState();
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LogInit();
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Dev9Log.WriteLn("dev9null plugin version %d,%d", revision, build);
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Dev9Log.WriteLn("Initializing dev9null");
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// Initialize anything that needs to be initialized.
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memset(dev9regs, 0, sizeof(dev9regs));
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return 0;
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}
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EXPORT_C_(void)
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DEV9shutdown()
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{
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Dev9Log.WriteLn("Shutting down Dev9null.");
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Dev9Log.Close();
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}
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EXPORT_C_(s32)
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DEV9open(void *pDsp)
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{
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Dev9Log.WriteLn("Opening Dev9null.");
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// Get anything ready we need to. Opening and creating hard
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// drive files, for example.
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return 0;
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}
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EXPORT_C_(void)
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DEV9close()
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{
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Dev9Log.WriteLn("Closing Dev9null.");
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// Close files opened.
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}
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EXPORT_C_(u8)
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DEV9read8(u32 addr)
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{
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u8 value = 0;
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switch (addr) {
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// case 0x1F80146E: // DEV9 hardware type (0x32 for an expansion bay)
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case 0x10000038: /*value = dev9Ru8(addr);*/
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break; // We need to have at least one case to avoid warnings.
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default:
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//value = dev9Ru8(addr);
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Dev9Log.WriteLn("*Unknown 8 bit read at address %lx", addr);
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break;
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}
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return value;
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}
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EXPORT_C_(u16)
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DEV9read16(u32 addr)
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{
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u16 value = 0;
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switch (addr) {
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// Addresses you may want to catch here include:
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// case 0x1F80146E: // DEV9 hardware type (0x32 for an expansion bay)
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// case 0x10000002: // The Smart Chip revision. Should be 0x11
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// case 0x10000004: // More type info: bit 0 - smap; bit 1 - hd; bit 5 - flash
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// case 0x1000000E: // Similar to the last; bit 1 should be set if a hd is hooked up.
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// case 0x10000028: // intr_stat
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// case 0x10000038: // hard drives seem to like reading and writing the max dma size per transfer here.
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// case 0x1000002A: // intr_mask
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// case 0x10000040: // pio_data
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// case 0x10000044: // nsector
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// case 0x10000046: // sector
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// case 0x10000048: // lcyl
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// case 0x1000004A: // hcyl
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// case 0x1000004C: // select
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// case 0x1000004E: // status
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// case 0x1000005C: // status
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// case 0x10000064: // if_ctrl
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case 0x10000038: /*value = dev9Ru16(addr);*/
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break;
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default:
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//value = dev9Ru16(addr);
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Dev9Log.WriteLn("*Unknown 16 bit read at address %lx", addr);
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break;
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}
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return value;
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}
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EXPORT_C_(u32)
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DEV9read32(u32 addr)
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{
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u32 value = 0;
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switch (addr) {
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case 0x10000038: /*value = dev9Ru32(addr);*/
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break;
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default:
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//value = dev9Ru32(addr);
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Dev9Log.WriteLn("*Unknown 32 bit read at address %lx", addr);
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break;
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}
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return value;
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}
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EXPORT_C_(void)
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DEV9write8(u32 addr, u8 value)
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{
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switch (addr) {
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case 0x10000038: /*dev9Ru8(addr) = value;*/
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break;
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default:
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Dev9Log.WriteLn("*Unknown 8 bit write; address %lx = %x", addr, value);
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//dev9Ru8(addr) = value;
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break;
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}
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}
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EXPORT_C_(void)
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DEV9write16(u32 addr, u16 value)
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{
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switch (addr) {
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// Remember that list on DEV9read16? You'll want to write to a
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// lot of them, too.
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case 0x10000038: /*dev9Ru16(addr) = value;*/
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break;
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default:
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Dev9Log.WriteLn("*Unknown 16 bit write; address %lx = %x", addr, value);
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//dev9Ru16(addr) = value;
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break;
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}
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}
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EXPORT_C_(void)
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DEV9write32(u32 addr, u32 value)
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{
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switch (addr) {
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case 0x10000038: /*dev9Ru32(addr) = value;*/
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break;
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default:
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Dev9Log.WriteLn("*Unknown 32 bit write; address %lx = %x", addr, value);
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//dev9Ru32(addr) = value;
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break;
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}
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}
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//#ifdef ENABLE_NEW_IOPDMA_DEV9
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EXPORT_C_(s32)
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DEV9dmaRead(s32 channel, u32 *data, u32 bytesLeft, u32 *bytesProcessed)
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{
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// You'll want to put your own DMA8 reading code here.
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// Time to interact with your fake (or real) hardware.
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Dev9Log.WriteLn("Reading DMA8 Mem.");
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*bytesProcessed = bytesLeft;
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return 0;
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}
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EXPORT_C_(s32)
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DEV9dmaWrite(s32 channel, u32 *data, u32 bytesLeft, u32 *bytesProcessed)
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{
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// See above.
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Dev9Log.WriteLn("Writing DMA8 Mem.");
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*bytesProcessed = bytesLeft;
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return 0;
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}
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EXPORT_C_(void)
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DEV9dmaInterrupt(s32 channel)
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{
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// See above.
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}
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//#else
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EXPORT_C_(void)
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DEV9readDMA8Mem(u32 *pMem, int size)
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{
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// You'll want to put your own DMA8 reading code here.
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// Time to interact with your fake (or real) hardware.
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Dev9Log.WriteLn("Reading DMA8 Mem.");
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}
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EXPORT_C_(void)
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DEV9writeDMA8Mem(u32 *pMem, int size)
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{
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// See above.
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Dev9Log.WriteLn("Writing DMA8 Mem.");
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}
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//#endif
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EXPORT_C_(void)
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DEV9irqCallback(DEV9callback callback)
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{
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// Setting our callback. You will call it with DEV9irq(cycles),
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// Where cycles is the number of cycles till the irq is triggered.
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DEV9irq = callback;
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}
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int _DEV9irqHandler(void)
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{
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// And this gets called when the irq is triggered.
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return 0;
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}
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EXPORT_C_(DEV9handler)
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DEV9irqHandler(void)
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{
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// Pass it to pcsx2.
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return (DEV9handler)_DEV9irqHandler;
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}
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EXPORT_C_(void)
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DEV9setSettingsDir(const char *dir)
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{
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// Grab the ini directory.
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s_strIniPath = (dir == NULL) ? "inis" : dir;
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}
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// extended funcs
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EXPORT_C_(s32)
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DEV9test()
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{
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return 0;
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}
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EXPORT_C_(s32)
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DEV9freeze(int mode, freezeData *data)
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{
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// This should store or retrieve any information, for if emulation
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// gets suspended, or for savestates.
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switch (mode) {
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case FREEZE_LOAD:
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// Load previously saved data.
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break;
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case FREEZE_SAVE:
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// Save data.
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break;
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case FREEZE_SIZE:
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// return the size of the data.
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break;
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}
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return 0;
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}
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/* For operating systems that need an entry point for a dll/library, here it is. Defined in PS2Eext.h. */
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ENTRY_POINT;
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