104 lines
3.1 KiB
C
104 lines
3.1 KiB
C
#ifndef _ULTRA64_SCHED_H_
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#define _ULTRA64_SCHED_H_
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#include <ultra64.h>
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#define OS_SC_STACKSIZE 0x2000
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#define OS_SC_RETRACE_MSG 1
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#define OS_SC_DONE_MSG 2
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#define OS_SC_RDP_DONE_MSG 3
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#define OS_SC_PRE_NMI_MSG 4
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#define OS_SC_LAST_MSG 4 /* this should have highest number */
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#define OS_SC_MAX_MESGS 8
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typedef struct {
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short type;
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char misc[30];
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} OSScMsg;
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typedef struct OSScTask_s {
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struct OSScTask_s *next; /* note: this must be first */
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u32 state;
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u32 flags;
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void *framebuffer; /* used by graphics tasks */
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OSTask list;
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OSMesgQueue *msgQ;
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OSMesg msg;
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} OSScTask;
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/*
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* OSScTask flags:
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*/
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#define OS_SC_NEEDS_RDP 0x0001 /* uses the RDP */
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#define OS_SC_NEEDS_RSP 0x0002 /* uses the RSP */
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#define OS_SC_DRAM_DLIST 0x0004 /* SP & DP communicate through DRAM */
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#define OS_SC_PARALLEL_TASK 0x0010 /* must be first gfx task on list */
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#define OS_SC_LAST_TASK 0x0020 /* last task in queue for frame */
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#define OS_SC_SWAPBUFFER 0x0040 /* swapbuffers when gfx task done */
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#define OS_SC_RCP_MASK 0x0003 /* mask for needs bits */
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#define OS_SC_TYPE_MASK 0x0007 /* complete type mask */
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#define OS_SC_DP 0x0001 /* set if still needs dp */
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#define OS_SC_SP 0x0002 /* set if still needs sp */
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#define OS_SC_YIELD 0x0010 /* set if yield requested */
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#define OS_SC_YIELDED 0x0020 /* set if yield completed */
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/*
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* OSScTask->flags type identifier
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*/
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#define OS_SC_XBUS (OS_SC_SP | OS_SC_DP)
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#define OS_SC_DRAM (OS_SC_SP | OS_SC_DP | OS_SC_DRAM_DLIST)
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#define OS_SC_DP_XBUS (OS_SC_SP)
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#define OS_SC_DP_DRAM (OS_SC_SP | OS_SC_DRAM_DLIST)
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#define OS_SC_SP_XBUS (OS_SC_DP)
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#define OS_SC_SP_DRAM (OS_SC_DP | OS_SC_DRAM_DLIST)
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/*
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* private typedefs and defines
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*/
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#define VIDEO_MSG 666
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#define RSP_DONE_MSG 667
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#define RDP_DONE_MSG 668
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#define PRE_NMI_MSG 669
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/*
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* OSScClient:
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*
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* Data structure used by threads that wish to communicate to the
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* scheduling thread
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*
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*/
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typedef struct SCClient_s {
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struct SCClient_s *next; /* next client in the list */
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OSMesgQueue *msgQ; /* where to send the frame msg */
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} OSScClient;
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typedef struct {
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OSScMsg retraceMsg;
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OSScMsg prenmiMsg;
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OSMesgQueue interruptQ;
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OSMesg intBuf[OS_SC_MAX_MESGS];
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OSMesgQueue cmdQ;
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OSMesg cmdMsgBuf[OS_SC_MAX_MESGS];
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OSThread *thread;
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OSScClient *clientList;
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OSScTask *audioListHead;
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OSScTask *gfxListHead;
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OSScTask *audioListTail;
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OSScTask *gfxListTail;
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OSScTask *curRSPTask;
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OSScTask *curRDPTask;
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u32 frameCount;
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s32 doAudio;
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} OSSched;
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void osCreateScheduler(OSSched *s, void *stack, u8 mode, u32 numFields);
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void osScAddClient(OSSched *sc, OSScClient *c, OSMesgQueue *msgQ, OSScClient *next);
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void osScRemoveClient(OSSched *s, OSScClient *c);
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OSMesgQueue *osScGetCmdQ(OSSched *s);
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#endif
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