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GBA SIO: Improve logging

This commit is contained in:
Vicki Pfau 2021-03-12 04:37:48 -08:00
parent 3a95b30d63
commit a6e747add4
2 changed files with 31 additions and 0 deletions
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18
src/gba/sio.c
View File

@ -31,6 +31,23 @@ static struct GBASIODriver* _lookupDriver(struct GBASIO* sio, enum GBASIOMode mo
}
}
static const char* _modeName(enum GBASIOMode mode) {
switch (mode) {
case SIO_NORMAL_8:
return "NORMAL8";
case SIO_NORMAL_32:
return "NORMAL32";
case SIO_MULTI:
return "MULTI";
case SIO_JOYBUS:
return "JOYBUS";
case SIO_GPIO:
return "GPIO";
default:
return "(unknown)";
}
}
static void _switchMode(struct GBASIO* sio) {
unsigned mode = ((sio->rcnt & 0xC000) | (sio->siocnt & 0x3000)) >> 12;
enum GBASIOMode newMode;
@ -43,6 +60,7 @@ static void _switchMode(struct GBASIO* sio) {
if (sio->activeDriver && sio->activeDriver->unload) {
sio->activeDriver->unload(sio->activeDriver);
}
mLOG(GBA_SIO, DEBUG, "Switching mode from %s to %s", _modeName(sio->mode), _modeName(newMode));
sio->mode = newMode;
sio->activeDriver = _lookupDriver(sio, sio->mode);
if (sio->activeDriver && sio->activeDriver->load) {

13
src/gba/sio/joybus.c
View File

@ -21,9 +21,22 @@ void GBASIOJOYCreate(struct GBASIODriver* sio) {
uint16_t GBASIOJOYWriteRegister(struct GBASIODriver* sio, uint32_t address, uint16_t value) {
switch (address) {
case REG_JOYCNT:
mLOG(GBA_SIO, DEBUG, "JOY write: CNT <- %04X", value);
return (value & 0x0040) | (sio->p->p->memory.io[REG_JOYCNT >> 1] & ~(value & 0x7) & ~0x0040);
case REG_JOYSTAT:
mLOG(GBA_SIO, DEBUG, "JOY write: STAT <- %04X", value);
return (value & 0x0030) | (sio->p->p->memory.io[REG_JOYSTAT >> 1] & ~0x30);
case REG_JOY_TRANS_LO:
mLOG(GBA_SIO, DEBUG, "JOY write: TRANS_LO <- %04X", value);
break;
case REG_JOY_TRANS_HI:
mLOG(GBA_SIO, DEBUG, "JOY write: TRANS_HI <- %04X", value);
break;
default:
mLOG(GBA_SIO, DEBUG, "JOY write: Unknown reg %03X <- %04X", address, value);
// Fall through
case REG_RCNT:
break;
}
return value;
}