ShuriZma
/
melonDS
mirror of https://github.com/melonDS-emu/melonDS.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

wifi: fix IRQ14 emulation. other fixes and attempts.

This commit is contained in:
StapleButter 2017-06-13 01:01:46 +02:00
parent cb65536c22
commit 581a0954ad
2 changed files with 64 additions and 28 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
src/NDS.cpp
View File

@ -1246,11 +1246,7 @@ void ARM7Write8(u32 addr, u8 val)
}
void ARM7Write16(u32 addr, u16 val)
{//if (addr==(ARM7Read32(0x380FFF4)+0x4A0)) printf("%08X set client bitmap %04X %08X\n", ARM7->R[15], val, addr);
//if (addr==0x0230F89C) printf("[%08X] set pkt type %04X %08X\n", ARM7->R[15], val, addr);
/*if (addr==0x03807D2C) printf("[%08X] SET SOME STATUS %04X %08X\n", ARM7->R[15], val, addr);
if (addr==0x0230E310) printf("[%08X] SET YET ANOTHER DUMB LAYER OF STATUS %04X %08X\n", ARM7->R[15], val, addr);*/
//if (addr==0x0230E310 && val==0x15) val = 0xC;
{
switch (addr & 0xFF800000)
{
case 0x02000000:

86
src/Wifi.cpp
View File

@ -36,6 +36,7 @@ u16 Random;
u64 USCounter;
u64 USCompare;
bool BlockBeaconIRQ14;
u32 CmdCounter;
@ -173,6 +174,7 @@ void Reset()
USCounter = 0;
USCompare = 0;
BlockBeaconIRQ14 = false;
CmdCounter = 0;
}
@ -202,17 +204,23 @@ void SetIRQ13()
}
}
void SetIRQ14(bool forced)
void SetIRQ14(int source) // 0=USCOMPARE 1=BEACONCOUNT 2=forced
{
if (source != 2)
IOPORT(W_BeaconCount1) = IOPORT(W_BeaconInterval);
if (BlockBeaconIRQ14 && source == 1)
return;
if (!(IOPORT(W_USCompareCnt)) & 0x0001)
return;
SetIRQ(14);
if (!forced)
IOPORT(W_BeaconCount1) = IOPORT(W_BeaconInterval);
else
if (source == 2)
printf("wifi: weird forced IRQ14\n");
IOPORT(W_BeaconCount2) = 0xFFFF;
IOPORT(W_TXReqRead) &= 0xFFF2; // todo, eventually?
IOPORT(W_TXReqRead) &= 0xFFF2;
if (IOPORT(W_TXSlotBeacon) & 0x8000)
{
@ -400,7 +408,7 @@ void SendMPAck()
*(u16*)&ack[0xC + 0x10] = IOPORT(W_MACAddr0);
*(u16*)&ack[0xC + 0x12] = IOPORT(W_MACAddr1);
*(u16*)&ack[0xC + 0x14] = IOPORT(W_MACAddr2);
*(u16*)&ack[0xC + 0x16] = (IOPORT(W_TXSeqNo) + 1) << 4;
*(u16*)&ack[0xC + 0x16] = IOPORT(W_TXSeqNo) << 4;
*(u16*)&ack[0xC + 0x18] = 0x0033; // ???
*(u16*)&ack[0xC + 0x1A] = 0;
*(u32*)&ack[0xC + 0x1C] = 0;
@ -437,20 +445,31 @@ void ProcessTX(TXSlot* slot, int num)
slot->CurPhase = 1;
slot->CurPhaseTime = len;
// CHECKME
// hardware seems to do this automatically?
// I saw it done on captured packets, but saw no code to do it
if (num == 1)
{
if (slot->Length > 32)
{
*(u16*)&RAM[slot->Addr + 0xC + (slot->Length-6)] = *(u16*)&RAM[slot->Addr + 0x26];
}
}
if (num != 5) SetIRQ(7);
*(u16*)&RAM[slot->Addr + 0xC + 22] = IOPORT(W_TXSeqNo) << 4;
IOPORT(W_TXSeqNo) = (IOPORT(W_TXSeqNo) + 1) & 0x0FFF;
int txlen = Platform::MP_SendPacket(&RAM[slot->Addr], 12 + slot->Length);
if (num != 4) printf("wifi: sent %d/%d bytes of slot%d packet, framectl=%04X, %04X\n",
txlen, slot->Length+12, num, *(u16*)&RAM[slot->Addr + 0xC], *(u16*)&RAM[slot->Addr + 2]);
if (num != 4) printf("wifi: sent %d/%d bytes of slot%d packet, framectl=%04X, %04X %04X\n",
txlen, slot->Length+12, num, *(u16*)&RAM[slot->Addr + 0xC], *(u16*)&RAM[slot->Addr + 0x24], *(u16*)&RAM[slot->Addr + 0x26]);
}
break;
case 1: // transmit done
{
// checkme
*(u16*)&RAM[slot->Addr] = 0x0001;
if(num!=5)*(u16*)&RAM[slot->Addr] = 0x0001;
RAM[slot->Addr + 5] = 0;
if (num == 1)
@ -612,20 +631,24 @@ void CheckRX(bool block)
if (framectl == 0x0228) rxflags |= 0x000C;
else if (framectl == 0x0218) rxflags |= 0x000D;
else if (framectl == 0x0118) rxflags |= 0x000E; // checkme
else if (framectl == 0x0158) rxflags |= 0x000F; // wild guess. those two might be swapped
else rxflags |= 0x0008;
break;
}
if (framectl != 0x0080 && framectl != 0x0228)printf("got packet %04X\n", framectl);
if (MACEqual(&RXBuffer[12 + a_src], (u8*)&IOPORT(W_MACAddr0)))
return; // oops. we received a packet we just sent.
bool bssidmatch = MACEqual(&RXBuffer[12 + a_bss], (u8*)&IOPORT(W_BSSID0));
if (!(IOPORT(W_BSSID0) & 0x0001) && !(RXBuffer[12 + a_bss] & 0x01) &&
!bssidmatch)
{
printf("received packet %04X but it didn't pass the BSSID check\n", framectl);
return;
}
if (framectl != 0x0080 && framectl != 0x0228)
printf("wifi: received packet. framectrl=%04X\n", framectl);
//if (framectl != 0x0080 && framectl != 0x0228)
printf("wifi: received packet FC:%04X SN:%04X CL:%04X\n", framectl, *(u16*)&RXBuffer[12+4+6+6+6], *(u16*)&RXBuffer[12+4+6+6+6+2+2]);
// make RX header
@ -660,7 +683,11 @@ if (framectl != 0x0080 && framectl != 0x0228)printf("got packet %04X\n", framect
}
}
RXEndAddr = ((addr >> 1) + 1) & ~0x1;
if (addr & 0x2) addr += 2;
if (addr == (IOPORT(W_RXBufEnd) & 0x1FFE))
addr = (IOPORT(W_RXBufBegin) & 0x1FFE);
RXEndAddr = (addr & ~0x3) >> 1;
SetIRQ(6);
}
@ -668,10 +695,19 @@ if (framectl != 0x0080 && framectl != 0x0228)printf("got packet %04X\n", framect
void MSTimer()
{
IOPORT(W_BeaconCount1)--;
if (IOPORT(W_USCompareCnt))
{
if (IOPORT(W_BeaconCount1) == 0) SetIRQ14(false);
if (USCounter == USCompare)
{
BlockBeaconIRQ14 = false;
SetIRQ14(0);
}
}
IOPORT(W_BeaconCount1)--;
if (IOPORT(W_BeaconCount1) == 0)
{
SetIRQ14(1);
}
if (IOPORT(W_BeaconCount2) != 0)
@ -683,7 +719,7 @@ void MSTimer()
//if (!IOPORT(W_TXBusy))
// CheckRX(false);
}
u64 mpreplywindow;
void USTimer(u32 param)
{
if (IOPORT(W_USCountCnt))
@ -693,8 +729,6 @@ void USTimer(u32 param)
if (IOPORT(W_USCompareCnt))
{
if (USCounter == USCompare) SetIRQ14(false);
u32 beaconus = (IOPORT(W_BeaconCount1) << 10) | (0x3FF - uspart);
if (beaconus == IOPORT(W_PreBeacon)) SetIRQ15();
}
@ -739,7 +773,9 @@ void USTimer(u32 param)
u16 clientmask = *(u16*)&RXBuffer[0xC + 26];
if (clientmask & (1 << IOPORT(W_AIDLow)))
{
printf("MP: attempting to reply: %04X %04X\n", IOPORT(W_TXSlotReply1), IOPORT(W_TXSlotReply2));
printf("MP: attempting to reply: %04X %04X, delay=%04X\n",
IOPORT(W_TXSlotReply1), IOPORT(W_TXSlotReply2), *(u16*)&RXBuffer[0xC + 24]);
mpreplywindow = USCounter;
// this is a big fat guess
if (IOPORT(W_TXSlotReply1) & 0x8000)
{
@ -748,6 +784,8 @@ void USTimer(u32 param)
SendMPReply(*(u16*)&RXBuffer[0xC + 24]);
}
//if (IOPORT(W_TXSlotReply2) & 0x8000)
// SendMPReply(*(u16*)&RXBuffer[0xC + 24]);
}
}
}
@ -878,6 +916,7 @@ u16 Read(u32 addr)
break;
//case 0x214: NDS::debug(0); break;
//case 0x040: NDS::debug(0); break;
//case 0x54: printf("wifi: read WRCSR -> %04X\n", IOPORT(0x54)); break;
}
//printf("WIFI: read %08X\n", addr);
@ -1015,7 +1054,7 @@ void Write(u32 addr, u16 val)
case W_USCountCnt: val &= 0x0001; break;
case W_USCompareCnt:
if (val & 0x0002) SetIRQ14(true);
if (val & 0x0002) SetIRQ14(2);
val &= 0x0001;
break;
@ -1026,8 +1065,7 @@ void Write(u32 addr, u16 val)
case W_USCompare0:
USCompare = (USCompare & 0xFFFFFFFFFFFF0000) | (u64)(val & 0xFC00);
if (val & 0x03FF)
printf("wifi: mysterious USCOMPARE bits set %08X%08X %04X\n", (u32)(USCompare>>32), (u32)USCompare, val); // TODO
if (val & 0x0001) BlockBeaconIRQ14 = true;
return;
case W_USCompare1: USCompare = (USCompare & 0xFFFFFFFF0000FFFF) | ((u64)val << 16); return;
case W_USCompare2: USCompare = (USCompare & 0xFFFF0000FFFFFFFF) | ((u64)val << 32); return;
@ -1059,6 +1097,7 @@ void Write(u32 addr, u16 val)
if (val & 0x0001)
{
IOPORT(W_RXBufWriteCursor) = IOPORT(W_RXBufWriteAddr);
printf("wifi: force WRCSR to %04X\n", IOPORT(W_RXBufWriteCursor));
}
if (val & 0x0080)
{
@ -1155,7 +1194,8 @@ void Write(u32 addr, u16 val)
return;
case 0x094:
printf("wifi: trying to send packet. %08X=%04X. TXREQ=%04X\n", addr, val, IOPORT(W_TXReqRead));
printf("wifi: trying to send packet. %08X=%04X. TXREQ=%04X. delay=%08X\n",
addr, val, IOPORT(W_TXReqRead), (u32)(USCounter-mpreplywindow));
break;
// read-only ports