diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/librfu_sio32id.c | 48 |
1 files changed, 24 insertions, 24 deletions
diff --git a/src/librfu_sio32id.c b/src/librfu_sio32id.c index 025d6085b..b6623540f 100644 --- a/src/librfu_sio32id.c +++ b/src/librfu_sio32id.c @@ -6,11 +6,11 @@ static s32 Sio32IDMain(void); struct RfuSIO32Id { - u8 unk0; + u8 MS_mode; u8 state; - u16 unk2; - u16 unk4; - u16 unk6; + u16 count; + u16 send_id; + u16 recv_id; u16 unk8; // unused u16 lastId; }; @@ -73,7 +73,7 @@ static s32 Sio32IDMain(void) switch (gRfuSIO32Id.state) { case 0: - gRfuSIO32Id.unk0 = 1; + gRfuSIO32Id.MS_mode = AGB_CLK_MASTER; REG_SIOCNT |= SIO_38400_BPS; REG_IME = 0; REG_IE |= INTR_FLAG_SERIAL; @@ -84,16 +84,16 @@ static s32 Sio32IDMain(void) case 1: if (gRfuSIO32Id.lastId == 0) { - if (gRfuSIO32Id.unk0 == 1) + if (gRfuSIO32Id.MS_mode == AGB_CLK_MASTER) { - if (gRfuSIO32Id.unk2 == 0) + if (gRfuSIO32Id.count == 0) { REG_IME = 0; REG_SIOCNT |= SIO_ENABLE; REG_IME = 1; } } - else if (gRfuSIO32Id.unk4 != RFU_ID && !gRfuSIO32Id.unk2) + else if (gRfuSIO32Id.send_id != RFU_ID && !gRfuSIO32Id.count) { REG_IME = 0; REG_IE &= ~INTR_FLAG_SERIAL; @@ -132,39 +132,39 @@ static void Sio32IDIntr(void) #endif regSIODATA32 = REG_SIODATA32; - if (gRfuSIO32Id.unk0 != 1) + if (gRfuSIO32Id.MS_mode != AGB_CLK_MASTER) REG_SIOCNT |= SIO_ENABLE; - rfuSIO32IdUnk0_times_16 = 16 * gRfuSIO32Id.unk0; // to handle side effect of inline asm + rfuSIO32IdUnk0_times_16 = 16 * gRfuSIO32Id.MS_mode; // to handle side effect of inline asm rfuSIO32IdUnk0_times_16 = (regSIODATA32 << rfuSIO32IdUnk0_times_16) >> 16; - regSIODATA32 = (regSIODATA32 << 16 * (1 - gRfuSIO32Id.unk0)) >> 16; + regSIODATA32 = (regSIODATA32 << 16 * (1 - gRfuSIO32Id.MS_mode)) >> 16; if (gRfuSIO32Id.lastId == 0) { - if (rfuSIO32IdUnk0_times_16 == gRfuSIO32Id.unk6) + if (rfuSIO32IdUnk0_times_16 == gRfuSIO32Id.recv_id) { - if (gRfuSIO32Id.unk2 > 3) + if (gRfuSIO32Id.count > 3) { gRfuSIO32Id.lastId = regSIODATA32; } - else if (rfuSIO32IdUnk0_times_16 == (u16)~gRfuSIO32Id.unk4) + else if (rfuSIO32IdUnk0_times_16 == (u16)~gRfuSIO32Id.send_id) { - negRfuSIO32IdUnk6 = ~gRfuSIO32Id.unk6; + negRfuSIO32IdUnk6 = ~gRfuSIO32Id.recv_id; if (regSIODATA32 == negRfuSIO32IdUnk6) - ++gRfuSIO32Id.unk2; + ++gRfuSIO32Id.count; } } else { - gRfuSIO32Id.unk2 = gRfuSIO32Id.lastId; + gRfuSIO32Id.count = 0; } } - if (gRfuSIO32Id.unk2 < 4) - gRfuSIO32Id.unk4 = *(gRfuSIO32Id.unk2 + Sio32ConnectionData); + if (gRfuSIO32Id.count < 4) + gRfuSIO32Id.send_id = *(gRfuSIO32Id.count + Sio32ConnectionData); else - gRfuSIO32Id.unk4 = RFU_ID; - gRfuSIO32Id.unk6 = ~regSIODATA32; - REG_SIODATA32 = (gRfuSIO32Id.unk4 << 16 * (1 - gRfuSIO32Id.unk0)) - + (gRfuSIO32Id.unk6 << 16 * gRfuSIO32Id.unk0); - if (gRfuSIO32Id.unk0 == 1 && (gRfuSIO32Id.unk2 || regSIODATA32 == 0x494e)) + gRfuSIO32Id.send_id = RFU_ID; + gRfuSIO32Id.recv_id = ~regSIODATA32; + REG_SIODATA32 = (gRfuSIO32Id.send_id << 16 * (1 - gRfuSIO32Id.MS_mode)) + + (gRfuSIO32Id.recv_id << 16 * gRfuSIO32Id.MS_mode); + if (gRfuSIO32Id.MS_mode == AGB_CLK_MASTER && (gRfuSIO32Id.count != 0 || regSIODATA32 == 0x494e)) { for (delay = 0; delay < 600; ++delay) ; |