dolphin/Source/Plugins/Plugin_Wiimote/Src/EmuSubroutines.cpp

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// Copyright (C) 2003 Dolphin Project.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 2.0.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/
/* HID reports access guide. */
/* 0x10 - 0x1a Output EmuMain.cpp: HidOutputReport()
0x10 - 0x14: General
0x15: Status report request from the Wii
0x16 and 0x17: Write and read memory or registers
0x19 and 0x1a: General
0x20 - 0x22 Input EmuMain.cpp: HidOutputReport() to the destination
0x15 leads to a 0x20 Input report
0x17 leads to a 0x21 Input report
0x10 - 0x1a leads to a 0x22 Input report
0x30 - 0x3f Input This file: Update() */
#include <vector>
#include <string>
#include "Common.h" // Common
#include "StringUtil.h"
#include "pluginspecs_wiimote.h"
#include "EmuMain.h" // Local
#include "EmuSubroutines.h"
#include "Config.h" // for g_Config
extern SWiimoteInitialize g_WiimoteInitialize;
namespace WiiMoteEmu
{
//******************************************************************************
// Subroutines
//******************************************************************************
/* Here we process the Output Reports that the Wii sends. Our response will be
an Input Report back to the Wii. Input and Output is from the Wii's
perspective, Output means data to the Wiimote (from the Wii), Input means
data from the Wiimote.
The call browser:
1. Wiimote_InterruptChannel > InterruptChannel > HidOutputReport
2. Wiimote_ControlChannel > ControlChannel > HidOutputReport
The IR lights and speaker enable/disable and mute/unmute values are
0x2 = Disable
0x6 = Enable
*/
void HidOutputReport(u16 _channelID, wm_report* sr) {
INFO_LOG(WIIMOTE, "HidOutputReport (0x%02x)", sr->channel);
std::string Temp;
switch(sr->channel)
{
case WM_RUMBLE:
// TODO: Implement rumble for real wiimotes
break;
case WM_LEDS: // 0x11
WmLeds(_channelID, (wm_leds*)sr->data);
break;
case WM_DATA_REPORTING: // 0x12
WmDataReporting(_channelID, (wm_data_reporting*)sr->data);
break;
case WM_REQUEST_STATUS: // 0x15
if (!g_Config.bUseRealWiimote || !g_RealWiiMotePresent) WmRequestStatus(_channelID, (wm_request_status*)sr->data);
//Temp = ArrayToString(sr->data, sizeof(wm_request_status), 0);
//DEBUG_LOG(WIIMOTE, "%s: InterruptChannel: %s", Tm().c_str(), Temp.c_str());
break;
case WM_READ_DATA: // 0x17
if (!g_Config.bUseRealWiimote || !g_RealWiiMotePresent) WmReadData(_channelID, (wm_read_data*)sr->data);
break;
/* This enables or disables the IR lights, we update the global variable
g_IR so that WmRequestStatus() knows about it */
case WM_IR_PIXEL_CLOCK: // 0x13
case WM_IR_LOGIC: // 0x1a
WARN_LOG(WIIMOTE, " IR Enable 0x%02x: 0x%02x", sr->channel, sr->data[0]);
DEBUG_LOG(WIIMOTE, "IR Enable/Disable 0x%02x: 0x%02x", sr->channel, sr->data[0]);
if(sr->data[0] == 0x02) g_IR = 0;
else if(sr->data[0] == 0x06) g_IR = 1;
break;
case WM_WRITE_DATA: // 0x16
WmWriteData(_channelID, (wm_write_data*)sr->data);
break;
case WM_SPEAKER_ENABLE: // 0x14
INFO_LOG(WIIMOTE, " WM Speaker Enable 0x%02x: 0x%02x", sr->channel, sr->data[0]);
//DEBUG_LOG(WIIMOTE, "Speaker Enable/Disable 0x%02x: 0x%02x", sr->channel, sr->data[0]);
if(sr->data[0] == 0x02) g_Speaker = 0;
else if(sr->data[0] == 0x06) g_Speaker = 1;
break;
case WM_SPEAKER_MUTE: // 0x19
INFO_LOG(WIIMOTE, " WM Mute Enable 0x%02x: 0x%02x", sr->channel, sr->data[0]);
//DEBUG_LOG(WIIMOTE, "Speaker Mute/Unmute 0x%02x: 0x%02x", sr->channel, sr->data[0]);
if(sr->data[0] == 0x02) g_SpeakerVoice = 0; // g_SpeakerVoice
else if(sr->data[0] == 0x06) g_SpeakerVoice = 1;
break;
case WM_WRITE_SPEAKER_DATA: // 0x18
break;
default:
PanicAlert("HidOutputReport: Unknown channel 0x%02x", sr->channel);
return;
}
}
/* Generate the right header for wm reports. The returned values is the length
of the header before the data begins. It's always two for all reports 0x20 -
0x22, 0x30 - 0x37 */
int WriteWmReport(u8* dst, u8 channel)
{
// Update the first byte to 0xa1
u32 Offset = 0;
hid_packet* pHidHeader = (hid_packet*)(dst + Offset);
Offset += sizeof(hid_packet);
pHidHeader->type = HID_TYPE_DATA;
pHidHeader->param = HID_PARAM_INPUT;
// Update the second byte to the current report type 0x20 - 0x22, 0x30 - 0x37
wm_report* pReport = (wm_report*)(dst + Offset);
Offset += sizeof(wm_report);
pReport->channel = channel;
return Offset;
}
/* LED (blue lights) report. */
void WmLeds(u16 _channelID, wm_leds* leds) {
INFO_LOG(WIIMOTE, " Set LEDs Leds: %x Rumble: %x", leds->leds, leds->rumble);
g_Leds = leds->leds;
}
/* This will generate the 0x22 acknowledgment after all Input reports. It will
have the form a1 22 00 00 _reportID 00. The first two bytes are the core
buttons data, they are 00 00 when nothing is pressed. The last byte is the
success code 00. */
void WmSendAck(u16 _channelID, u8 _reportID, u32 address)
{
u8 DataFrame[1024];
u32 Offset = 0;
// Header
hid_packet* pHidHeader = (hid_packet*)(DataFrame + Offset);
pHidHeader->type = HID_TYPE_DATA;
pHidHeader->param = HID_PARAM_INPUT;
Offset += sizeof(hid_packet);
wm_acknowledge* pData = (wm_acknowledge*)(DataFrame + Offset);
pData->Channel = WM_WRITE_DATA_REPLY;
pData->unk0 = 0;
pData->unk1 = 0;
pData->reportID = _reportID;
pData->errorID = 0;
Offset += sizeof(wm_acknowledge);
INFO_LOG(WIIMOTE, " WMSendAck()");
INFO_LOG(WIIMOTE, " Report ID: %02x", _reportID);
//std::string Temp = ArrayToString(DataFrame, Offset, 0);
//LOGV(WIIMOTE, 2, " Data: %s", Temp.c_str());
//DEBUG_LOG(WIIMOTE, "%s: WMSendAck: %s", Tm(true).c_str(), Temp.c_str());
/* Debug. Write the report for extension registry writes.
if((_reportID == 0x16 || _reportID == 0x17) && ((address >> 16) & 0xfe) == 0xa4)
{
DEBUG_LOG(WIIMOTE, "WMSendAck Report ID: %02x Encryption: %02x", _reportID, g_RegExt[0xf0]);
DEBUG_LOG(WIIMOTE, "Data: %s", Temp.c_str());
}*/
g_WiimoteInitialize.pWiimoteInput(_channelID, DataFrame, Offset);
// Debugging
ReadDebugging(true, DataFrame, Offset);
}
/* Read data from Wiimote and Extensions registers. */
void WmReadData(u16 _channelID, wm_read_data* rd)
{
u32 address = convert24bit(rd->address);
u16 size = convert16bit(rd->size);
std::string Temp;
INFO_LOG(WIIMOTE, "Read data Address space: %x", rd->space);
INFO_LOG(WIIMOTE, "Read data Address: 0x%06x", address);
INFO_LOG(WIIMOTE, "Read data Size: 0x%04x", size);
INFO_LOG(WIIMOTE, "Read data Rumble: %x", rd->rumble);
//u32 _address = address;
std::string Tmp; // Debugging
/* Now we determine what address space we are reading from. Space 0 is
Eeprom and space 1 and 2 is the registers. */
if(rd->space == WM_SPACE_EEPROM)
{
if (address + size > WIIMOTE_EEPROM_SIZE)
{
PanicAlert("WmReadData: address + size out of bounds");
return;
}
SendReadDataReply(_channelID, g_Eeprom + address, address, (u8)size);
/*DEBUG_LOG(WIIMOTE, "Read RegEeprom: Size: %i, Address: %08x, Offset: %08x",
size, address, (address & 0xffff));*/
}
else if(rd->space == WM_SPACE_REGS1 || rd->space == WM_SPACE_REGS2)
{
u8* block;
u32 blockSize;
switch((address >> 16) & 0xFE)
{
case 0xA2:
block = g_RegSpeaker;
blockSize = WIIMOTE_REG_SPEAKER_SIZE;
INFO_LOG(WIIMOTE, " Case 0xa2: g_RegSpeaker");
/*Tmp = ArrayToString(g_RegSpeaker, size, (address & 0xffff));
//LOGV(WIIMOTE, 0, " Data: %s", Temp.c_str());
DEBUG_LOG(WIIMOTE, "Read RegSpkr: Size %i Address %08x Offset %08x\nData %s",
size, address, (address & 0xffff), Tmp.c_str());*/
break;
case 0xA4:
block = g_RegExt;
blockSize = WIIMOTE_REG_EXT_SIZE;
INFO_LOG(WIIMOTE, " Case 0xa4: Read ExtReg");
/*Tmp = ArrayToString(g_RegExt, size, (address & 0xffff), 40);
//LOGV(WIIMOTE, 0, " Data: %s", Temp.c_str());
DEBUG_LOG(WIIMOTE, "Read RegExt: Size %i Address %08x Offset %08x\nData %s",
size, address, (address & 0xffff), Tmp.c_str());*/
break;
// case 0xA6:
// block = g_RegMotionPlus;
// block[0xFC] = 0xA6;
// block[0xFD] = 0x20;
// block[0xFE] = 0x00;
// block[0xFF] = 0x05;
// blockSize = WIIMOTE_REG_EXT_SIZE;
// INFO_LOG(WIIMOTE, " Case 0xa6: MotionPlusReg [%x]", address);
/*
Tmp = ArrayToString(block, size, (address & 0xffff));
//LOGV(WIIMOTE, 0, " Data: %s", Temp.c_str());
INFO_LOG(WIIMOTE, "Read MotionPlusReg: Size %i Address %08x Offset %08x\nData %s",
size, address, (address & 0xffff), Tmp.c_str());
*/
// break;
case 0xB0:
block = g_RegIr;
blockSize = WIIMOTE_REG_IR_SIZE;
INFO_LOG(WIIMOTE, " Case: 0xb0 g_RegIr");
/*Tmp = ArrayToString(g_RegIr, size, (address & 0xffff));
//LOGV(WIIMOTE, 0, " Data: %s", Temp.c_str());
DEBUG_LOG(WIIMOTE, "Read RegIR: Size %i Address %08x Offset %08x\nData %s",
size, address, (address & 0xffff), Tmp.c_str());*/
break;
default:
ERROR_LOG(WIIMOTE, "WmReadData: bad register block!");
return;
}
// Encrypt data that is read from the Wiimote Extension Register
if(((address >> 16) & 0xfe) == 0xa4)
{
/* Debugging
DEBUG_LOG(WIIMOTE, "WmReadData Address: %08x Offset: %08x Size: %i byte",
address, address & 0xffff, (u8)size);
// Debugging
u32 offset = address & 0xffff;
std::string Temp = ArrayToString(g_RegExt, size, offset);
DEBUG_LOG(WIIMOTE, "Unencrypted data:\n%s", Temp.c_str());*/
// Check if encrypted reads is on
if(g_RegExt[0xf0] == 0xaa)
{
/* Copy the registry to a temporary space. We don't want to change the unencrypted
data in the registry */
memcpy(g_RegExtTmp, g_RegExt, sizeof(g_RegExt));
// Encrypt g_RegExtTmp at that location
wiimote_encrypt(&g_ExtKey, &g_RegExtTmp[address & 0xffff], (address & 0xffff), (u8)size);
// Update the block that SendReadDataReply will eventually send to the Wii
block = g_RegExtTmp;
/* Debugging: Show the encrypted data
std::string Temp = ArrayToString(g_RegExtTmp, size, offset);
DEBUG_LOG(WIIMOTE, "Encrypted data:\n%s", Temp.c_str());*/
}
}
//-------------
address &= 0xFFFF;
if(address + size > blockSize) {
PanicAlert("WmReadData: address + size out of bounds! [%d %d %d]", address, size, blockSize);
return;
}
// Let this function process the message and send it to the Wii
SendReadDataReply(_channelID, block + address, address, (u8)size);
}
else
{
PanicAlert("WmReadData: unimplemented parameters (size: %i, addr: 0x%x)!", size, rd->space);
}
}
/* Here we produce the actual 0x21 Input report that we send to the Wii. The
message is divided into 16 bytes pieces and sent piece by piece. There will
be five formatting bytes at the begging of all reports. A common format is
00 00 f0 00 20, the 00 00 means that no buttons are pressed, the f means 16
bytes in the message, the 0 means no error, the 00 20 means that the message
is at the 00 20 offest in the registry that was read.
_Base: The data beginning at _Base[0] _Address: The starting address inside
the registry, this is used to check for out of bounds reading _Size: The
total size to send
*/
void SendReadDataReply(u16 _channelID, void* _Base, u16 _Address, u8 _Size)
{
int dataOffset = 0;
const u8* data = (const u8*)_Base;
while (_Size > 0)
{
u8 DataFrame[1024];
// Write the first two bytes to DataFrame
u32 Offset = WriteWmReport(DataFrame, WM_READ_DATA_REPLY);
// Limit the size to 16 bytes
int copySize = _Size;
if (copySize > 16) copySize = 16;
// Connect pReply->data to the almost empty DataFrame
wm_read_data_reply* pReply = (wm_read_data_reply*)(DataFrame + Offset);
// Now we increase Offset to the final size of the report
Offset += sizeof(wm_read_data_reply);
// Add header values
pReply->buttons = 0;
pReply->error = 0;
// 0x1 means two bytes, 0xf means 16 bytes
pReply->size = (copySize - 1) & 0xf;
pReply->address = Common::swap16(_Address + dataOffset);
// Write a pice of _Base to DataFrame
memcpy(pReply->data, data + dataOffset, copySize);
// Check if we have less than 16 bytes left to send
if(copySize < 16) memset(pReply->data + copySize, 0, 16 - copySize);
// Update DataOffset for the next loop
dataOffset += copySize;
/* Out of bounds. The real Wiimote generate an error for the first
request to 0x1770 if we dont't replicate that the game will never
read the capibration data at the beginning of Eeprom. I think this
error is supposed to occur when we try to read above the freely
usable space that ends at 0x16ff. */
if (Common::swap16(pReply->address + pReply->size) > WIIMOTE_EEPROM_FREE_SIZE)
{
pReply->size = 0x0f;
pReply->error = 0x08;
}
// Logging
INFO_LOG(WIIMOTE, " SendReadDataReply()");
DEBUG_LOG(WIIMOTE, " Buttons: 0x%04x", pReply->buttons);
DEBUG_LOG(WIIMOTE, " Error: 0x%x", pReply->error);
DEBUG_LOG(WIIMOTE, " Size: 0x%x", pReply->size);
DEBUG_LOG(WIIMOTE, " Address: 0x%04x", pReply->address);
/*DEBUG_LOG(WIIMOTE, " SendReadDataReply()");
DEBUG_LOG(WIIMOTE, " Offset: 0x%x", Offset);
DEBUG_LOG(WIIMOTE, " dataOffset: 0x%x", dataOffset);
DEBUG_LOG(WIIMOTE, " copySize: 0x%x", copySize);
DEBUG_LOG(WIIMOTE, " Size: 0x%x", pReply->size);
DEBUG_LOG(WIIMOTE, " Address: 0x%04x", Common::swap16(pReply->address));*/
//std::string Temp = ArrayToString(data, 0x40);
//DEBUG_LOG(WIIMOTE, "Data:\n%s", Temp.c_str());
// Send a piece
g_WiimoteInitialize.pWiimoteInput(_channelID, DataFrame, Offset);
// Update the size that is left
_Size -= copySize;
// Debugging
ReadDebugging(true, DataFrame, Offset);
}
if (_Size != 0) {
PanicAlert("WiiMote-Plugin: SendReadDataReply() failed");
}
}
/* Write data to Wiimote and Extensions registers. */
void WmWriteData(u16 _channelID, wm_write_data* wd)
{
u32 address = convert24bit(wd->address);
INFO_LOG(WIIMOTE, "Write data");
DEBUG_LOG(WIIMOTE, " Address space: %x", wd->space);
DEBUG_LOG(WIIMOTE, " Address: 0x%06x", address);
DEBUG_LOG(WIIMOTE, " Size: 0x%02x", wd->size);
DEBUG_LOG(WIIMOTE, " Rumble: %x", wd->rumble);
//std::string Temp = ArrayToString(wd->data, wd->size);
//LOGV(WIIMOTE, 0, " Data: %s", Temp.c_str());
// Write to EEPROM
if(wd->size <= 16 && wd->space == WM_SPACE_EEPROM)
{
if(address + wd->size > WIIMOTE_EEPROM_SIZE) {
ERROR_LOG(WIIMOTE, "WmWriteData: address + size out of bounds!");
PanicAlert("WmWriteData: address + size out of bounds!");
return;
}
memcpy(g_Eeprom + address, wd->data, wd->size);
/*DEBUG_LOG(WIIMOTE, "Write RegEeprom: Size: %i, Address: %08x, Offset: %08x",
wd->size, address, (address & 0xffff));*/
}
// Write to registers
else if(wd->size <= 16 && (wd->space == WM_SPACE_REGS1 || wd->space == WM_SPACE_REGS2))
{
u8* block;
u32 blockSize;
switch((address >> 16) & 0xFE)
{
case 0xA2:
block = g_RegSpeaker;
blockSize = WIIMOTE_REG_SPEAKER_SIZE;
INFO_LOG(WIIMOTE, " Case 0xa2: RegSpeaker");
/*DEBUG_LOG(WIIMOTE, "Write RegSpeaker: Size: %i, Address: %08x, Offset: %08x",
wd->size, address, (address & 0xffff));
DEBUG_LOG(WIIMOTE, "Data: %s", Temp.c_str());*/
break;
case 0xA4:
block = g_RegExt; // Extension Controller register
blockSize = WIIMOTE_REG_EXT_SIZE;
INFO_LOG(WIIMOTE, " Case 0xa4: ExtReg");
/*DEBUG_LOG(WIIMOTE, "Write RegExt Size: %i Address: %08x Offset: %08x ",
wd->size, address, (address & 0xffff));
DEBUG_LOG(WIIMOTE, "Data: %s", Temp.c_str());*/
break;
// case 0xA6:
// block = g_RegMotionPlus;
// blockSize = WIIMOTE_REG_EXT_SIZE;
// INFO_LOG(WIIMOTE, " Case 0xa6: MotionPlusReg [%x] Write ", address);
/*INFO_LOG(WIIMOTE, "Write MotionPlusReg Size: %i Address: %08x Offset: %08x ",
wd->size, address, (address & 0xffff));
// INFO_LOG(WIIMOTE, "Data: %s", Temp.c_str());*/
// break;
case 0xB0:
block = g_RegIr;
blockSize = WIIMOTE_REG_IR_SIZE;
INFO_LOG(WIIMOTE, " Case 0xb0: RegIr");
/*DEBUG_LOG(WIIMOTE, "Write RegIR Size: %i Address: %08x Offset: %08x ",
wd->size, address, (address & 0xffff));
DEBUG_LOG(WIIMOTE, "Data: %s", Temp.c_str());*/
break;
default:
ERROR_LOG(WIIMOTE, "WmWriteData: bad register block!");
PanicAlert("WmWriteData: bad register block!");
return;
}
// Remove for example 0xa40000 from the address
address &= 0xFFFF;
// Check if the address is within bounds
if(address + wd->size > blockSize) {
PanicAlert("WmWriteData: address + size out of bounds!");
return;
}
// Finally write the registers to the right structure
memcpy(block + address, wd->data, wd->size);
// Generate key for the Wiimote Extension
if(blockSize == WIIMOTE_REG_EXT_SIZE)
{
/* Debugging. Write the data.
DEBUG_LOG(WIIMOTE, "Data: %s", Temp.c_str());
DEBUG_LOG(WIIMOTE, "Current address: %08x", address); */
/* Run the key generation on all writes in the key area, it doesn't matter
that we send it parts of a key, only the last full key will have an
effect */
if(address >= 0x40 && address <= 0x4c)
wiimote_gen_key(&g_ExtKey, &g_RegExt[0x40]);
}
// -------------
} else {
PanicAlert("WmWriteData: unimplemented parameters!");
}
/* Just added for home brew... Isn't it enough that we call this from
InterruptChannel()? Or is there a separate route here that don't pass
though InterruptChannel()? */
//WmSendAck(_channelID, WM_WRITE_DATA, _address);
}
/* Here we produce a 0x20 status report to send to the Wii. We currently ignore
the status request rs and all its eventual instructions it may include (for
example turn off rumble or something else) and just send the status
report. */
void WmRequestStatus(u16 _channelID, wm_request_status* rs, int Extension)
{
INFO_LOG(WIIMOTE, " Request Status: Rumble: %x Channel: %04x",
rs->rumble, _channelID);
//SendStatusReport();
u8 DataFrame[1024];
u32 Offset = WriteWmReport(DataFrame, WM_STATUS_REPORT);
wm_status_report* pStatus = (wm_status_report*)(DataFrame + Offset);
Offset += sizeof(wm_status_report);
memset(pStatus, 0, sizeof(wm_status_report)); // fill the status report with zeroes
// Status values
pStatus->battery_low = 0; // battery is okay
pStatus->leds = g_Leds; // leds are 4 bit
pStatus->ir = g_IR; // 1 bit
pStatus->speaker = g_Speaker; // 1 bit
/* Battery levels in voltage
0x00 - 0x32: level 1
0x33 - 0x43: level 2
0x33 - 0x54: level 3
0x55 - 0xff: level 4 */
pStatus->battery = 0x5f; // fully charged
// Check if we have a specific order about the extension status
if (Extension == -1)
{
// Read config value for this one
if(g_Config.iExtensionConnected == EXT_NONE)
pStatus->extension = 0;
else
pStatus->extension = 1;
}
else
{
if(Extension)
pStatus->extension = 1;
else
pStatus->extension = 0;
}
INFO_LOG(WIIMOTE, " Extension: %x", pStatus->extension);
INFO_LOG(WIIMOTE, " SendStatusReport() Flags: 0x%02x Battery: %d"
,pStatus->padding1[2], pStatus->battery);
g_WiimoteInitialize.pWiimoteInput(_channelID, DataFrame, Offset);
// Debugging
ReadDebugging(true, DataFrame, Offset);
}
} // WiiMoteEmu