diff options
author | mrb0nk500 <b0nk@b0nk.xyz> | 2023-02-01 18:45:02 -0400 |
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committer | mrb0nk500 <b0nk@b0nk.xyz> | 2023-02-01 18:50:25 -0400 |
commit | 9fa0a7f1da1b70bee995f53c6c96c43189018772 (patch) | |
tree | 114548896790eaff23cdca84a025281de86bbb51 /src/Dolphin/GBA/GBA.c | |
parent | 2ba3289286bbfcf9fcc13fd135d976058d8b6c2e (diff) |
global: Import Dolphin SDK
This version comes from the Metroid Prime decompilation project.
https://github.com/PrimeDecomp/prime
Diffstat (limited to 'src/Dolphin/GBA/GBA.c')
-rw-r--r-- | src/Dolphin/GBA/GBA.c | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/src/Dolphin/GBA/GBA.c b/src/Dolphin/GBA/GBA.c new file mode 100644 index 0000000..bb89f2e --- /dev/null +++ b/src/Dolphin/GBA/GBA.c @@ -0,0 +1,109 @@ +#include "dolphin/GBAPriv.h" + +static GBASecParams SecParams[4]; +GBA __GBA[4]; +BOOL __GBAReset = FALSE; + +static BOOL OnReset(BOOL); + +static OSResetFunctionInfo ResetFunctionInfo = { + OnReset, + 127 +}; + +void ShortCommandProc(s32 chan) { + GBA* gba; + gba = &__GBA[chan]; + + if (gba->result != 0) { + return; + } + + if (gba->dst[0] != 0 || gba->dst[1] != 4) { + gba->result = 1; + return; + } + + gba->status[0] = gba->dst[2] & GBA_JSTAT_MASK; +} + +void GBAInit() { + s32 i; + GBA* gba; + for (i = 0; i < 4; ++i) { + gba = &__GBA[i]; + gba->delay = OSMicrosecondsToTicks(60); + OSInitThreadQueue(&gba->thread_queue); + gba->param = &SecParams[i]; + + // ASSERTMSG((u32) gba->param % 32 == 0) + } + + OSInitAlarm(); + DSPInit(); + __GBAReset = FALSE; + + OSRegisterResetFunction(&ResetFunctionInfo); +} + +s32 GBAGetStatusAsync(s32 chan, u8* status, GBACallback callback) { + GBA* gba; + s32 ret; + gba = &__GBA[chan]; + if (gba->callback != NULL) { + ret = GBA_BUSY; + } else { + gba->command = 0; + gba->status = status; + gba->callback = callback; + ret = __GBATransfer(chan, 1, 3, ShortCommandProc); + } + + return ret; +} + + +s32 GBAGetStatus(s32 chan, u8* status) { + s32 ret; + ret = GBAGetStatusAsync(chan, status, __GBASyncCallback); + + if (ret != GBA_READY) { + return ret; + } + + return __GBASync(chan); +} + + +s32 GBAResetAsync(s32 chan, u8* status, GBACallback callback) { + GBA* gba; + s32 ret; + gba = &__GBA[chan]; + if (gba->callback != NULL) { + ret = GBA_BUSY; + } else { + gba->command = 0xFF; + gba->status = status; + gba->callback = callback; + ret = __GBATransfer(chan, 1, 3, ShortCommandProc); + } + + return ret; +} + + +s32 GBAReset(s32 chan, u8* status) { + s32 ret; + + ret = GBAResetAsync(chan, status, __GBASyncCallback); + if (ret != GBA_READY) { + return ret; + } + + return __GBASync(chan); +} + +BOOL OnReset(BOOL) { + __GBAReset = TRUE; + return TRUE; +} |