74 lines
1.8 KiB
C
74 lines
1.8 KiB
C
#include "libultra_internal.h"
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#include "osContInternal.h"
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#include <macros.h>
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#ifndef AVOID_UB
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OSContPackedStruct D_80365CE0[7];
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UNUSED static u32 unused; // padding between these two variables
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u32 D_80365D1C;
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#else
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// Reordered gcc vars above will disturb the aliasing done to access all 8 members of this array, hence AVOID_UB.
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OSContPackedStruct D_80365CE0[8];
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#endif
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extern u8 D_80365D20;
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extern u8 _osCont_numControllers;
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void __osPackReadData(void);
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s32 osContStartReadData(OSMesgQueue *mesg) {
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s32 ret = 0;
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s32 i;
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__osSiGetAccess();
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if (D_80365D20 != 1) {
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__osPackReadData();
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ret = __osSiRawStartDma(1, D_80365CE0);
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osRecvMesg(mesg, NULL, OS_MESG_BLOCK);
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}
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for (i = 0; i < 0x10; i++) {
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*((u32 *) &D_80365CE0 + i) = 255;
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}
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D_80365D1C = 0;
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ret = __osSiRawStartDma(0, &D_80365CE0);
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D_80365D20 = 1;
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__osSiRelAccess();
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return ret;
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}
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void osContGetReadData(OSContPad *pad) {
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OSContPackedRead *spc;
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OSContPackedRead sp4;
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s32 i;
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spc = &D_80365CE0[0].read;
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for (i = 0; i < _osCont_numControllers; i++, spc++, pad++) {
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sp4 = *spc;
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pad->errnum = (sp4.unk02 & 0xc0) >> 4;
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if (pad->errnum == 0) {
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pad->button = sp4.button;
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pad->stick_x = sp4.rawStickX;
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pad->stick_y = sp4.rawStickY;
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}
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};
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}
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void __osPackReadData() {
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OSContPackedRead *spc;
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OSContPackedRead sp4;
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s32 i;
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spc = &D_80365CE0[0].read;
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for (i = 0; i < 0x10; i++) {
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*((u32 *) &D_80365CE0 + i) = 0;
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}
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D_80365D1C = 1;
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sp4.unk00 = 255;
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sp4.unk01 = 1;
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sp4.unk02 = 4;
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sp4.unk03 = 1;
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sp4.button = 65535;
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sp4.rawStickX = -1;
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sp4.rawStickY = -1;
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for (i = 0; i < _osCont_numControllers; i++) {
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*spc++ = sp4;
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}
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spc->unk00 = 254;
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}
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