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#include "ultra64/leo.h"
#include "ultra64/leoappli.h"
#include "ultra64/leodrive.h"
#include "array_count.h"
#include "ultra64.h"
static s32 __leoResetCalled = false;
static s32 __leoQueuesCreated = false;
static OSMesgQueue LEOpost_que;
static OSMesg LEOpost_que_buf[1];
void leoInitialize(OSPri compri, OSPri intpri, OSMesg* command_que_buf, u32 cmd_buff_size) {
u32 savedMask;
OSPri oldPri;
OSPri myPri;
OSPri pri;
if (intpri < compri) {
pri = compri;
} else {
pri = intpri;
}
oldPri = -1;
myPri = osGetThreadPri(NULL);
if (myPri < pri) {
oldPri = myPri;
osSetThreadPri(NULL, pri);
}
savedMask = __osDisableInt();
__leoQueuesCreated = true;
osCreateMesgQueue(&LEOcommand_que, command_que_buf, cmd_buff_size);
osCreateMesgQueue(&LEOcontrol_que, LEOcontrol_que_buf, ARRAY_COUNT(LEOcontrol_que_buf));
osCreateMesgQueue(&LEOevent_que, LEOevent_que_buf, ARRAY_COUNT(LEOevent_que_buf));
osCreateMesgQueue(&LEOdma_que, LEOdma_que_buf, ARRAY_COUNT(LEOdma_que_buf));
osCreateMesgQueue(&LEOblock_que, LEOblock_que_buf, ARRAY_COUNT(LEOblock_que_buf));
osCreateMesgQueue(&LEOpost_que, LEOpost_que_buf, ARRAY_COUNT(LEOpost_que_buf));
osCreateThread(&LEOcommandThread, 1, leomain, NULL, STACK_TOP(LEOcommandThreadStack), compri);
osStartThread(&LEOcommandThread);
osCreateThread(&LEOinterruptThread, 1, leointerrupt, NULL, STACK_TOP(LEOinterruptThreadStack), intpri);
osStartThread(&LEOinterruptThread);
osSetEventMesg(2, &LEOevent_que, (OSMesg)0x30000);
osSendMesg(&LEOblock_que, NULL, OS_MESG_NOBLOCK);
__osRestoreInt(savedMask);
if (oldPri != -1) {
osSetThreadPri(NULL, oldPri);
}
}
void leoCommand(void* cmd_blk_addr) {
if (__leoResetCalled != 0) {
((LEOCmd*)cmd_blk_addr)->header.status = LEO_STATUS_CHECK_CONDITION;
((LEOCmd*)cmd_blk_addr)->header.sense = LEO_SENSE_WAITING_NMI;
if ((((LEOCmd*)cmd_blk_addr)->header.control & LEO_CONTROL_POST) != 0) {
osSendMesg(((LEOCmd*)cmd_blk_addr)->header.post, (OSMesg)LEO_SENSE_WAITING_NMI, OS_MESG_BLOCK);
}
return;
}
osRecvMesg(&LEOblock_que, NULL, OS_MESG_BLOCK);
((LEOCmd*)cmd_blk_addr)->header.status = LEO_STATUS_BUSY;
((LEOCmd*)cmd_blk_addr)->header.sense = LEO_SENSE_NO_ADDITIONAL_SENSE_INFOMATION;
switch (((LEOCmd*)cmd_blk_addr)->header.command) {
case 1:
LEOclr_que_flag = 0xFF;
leoClr_queue();
LEOclr_que_flag = 0;
((LEOCmd*)cmd_blk_addr)->header.status = LEO_STATUS_GOOD;
if (((LEOCmd*)cmd_blk_addr)->header.control & LEO_CONTROL_POST) {
osSendMesg(((LEOCmd*)cmd_blk_addr)->header.post, (OSMesg)0, OS_MESG_BLOCK);
}
break;
case 5:
case 6:
((LEOCmd*)cmd_blk_addr)->data.readWrite.rwBytes = 0;
goto cmd_queing;
default:
if ((u32)(((LEOCmd*)cmd_blk_addr)->header.command - 1) >= 0xE) {
((LEOCmd*)cmd_blk_addr)->header.sense = LEO_SENSE_INVALID_COMMAND_OPERATION_CODE;
((LEOCmd*)cmd_blk_addr)->header.status = LEO_STATUS_CHECK_CONDITION;
break;
}
cmd_queing:
if (osSendMesg(&LEOcommand_que, (OSMesg)cmd_blk_addr, OS_MESG_NOBLOCK) != 0) {
((LEOCmd*)cmd_blk_addr)->header.sense = LEO_SENSE_QUEUE_FULL;
((LEOCmd*)cmd_blk_addr)->header.status = LEO_STATUS_CHECK_CONDITION;
}
}
osSendMesg(&LEOblock_que, (OSMesg)0, OS_MESG_BLOCK);
}
static const u8 zero[] = { 0 };
void LeoReset(void) {
__leoResetCalled = true;
if (__leoQueuesCreated) {
LEOclr_que_flag = 0xFF;
leoClr_queue();
LEOclr_que_flag = 0;
osRecvMesg(&LEOevent_que, NULL, OS_MESG_NOBLOCK);
osSendMesg(&LEOevent_que, (OSMesg)0xA0000, OS_MESG_BLOCK);
osSendMesg(&LEOcommand_que, (OSMesg)zero, OS_MESG_BLOCK);
}
}
s32 __leoSetReset(void) {
leoDrive_reset();
return 0;
}
// SENSE or ERROR?
s32 LeoResetClear(void) {
LEOCmdHeader resetclear;
resetclear.command = 0xF;
resetclear.control = LEO_CONTROL_POST;
resetclear.status = 0;
resetclear.post = &LEOpost_que;
if (osSendMesg(&LEOcommand_que, &resetclear.command, OS_MESG_NOBLOCK) != 0) {
return LEO_SENSE_QUEUE_FULL;
}
osRecvMesg(&LEOpost_que, NULL, OS_MESG_BLOCK);
if (resetclear.status == LEO_STATUS_GOOD) {
return LEO_SENSE_NO_ADDITIONAL_SENSE_INFOMATION;
}
return resetclear.sense;
}
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