globals.c
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/*---------------------------------------------------------------------*
Copyright (C) 1998 Nintendo.
$RCSfile: globals.c,v $
$Revision: 1.1.1.1 $
$Date: 2002/05/02 03:27:33 $
*---------------------------------------------------------------------*/
#include "hglobals.h"
#include "hdd.h"
OSId g_thread_id;
#ifdef _RDB_
u8 rdbSendBuf[RDB_SEND_BUF_SIZE];
#endif
OSPiHandle *HANDLE_ROM;
OSMesgQueue rspMsgQ, rdpMsgQ, dmaMsgQ;
OSMesgQueue piMsgQ;
/* implementations */
/*-----------------------------------------------------------------------------
DMA転送
-----------------------------------------------------------------------------*/
s32
g_dmaRead(OSPiHandle *handle, void *src_addr, void *dest_addr, u32 size)
{
OSIoMesg iomsg;
TDDToken _token;
if (size & 0x1) size--;
#ifdef DEBUG
try_assert("dmaread : no handle",(s32)handle);
try_assert("dmaread : size 0",(s32)size);
#endif
iomsg.hdr.pri = OS_MESG_PRI_NORMAL;
iomsg.hdr.retQueue = &dmaMsgQ;
iomsg.dramAddr = dest_addr;
iomsg.devAddr = (u32)src_addr;
iomsg.size = size;
/* CPUキャッシュの無効化 */
osInvalDCache((void*)dest_addr, (s32)size);
/* start DMA read */
if( _token = dd_getToken(DD_TOKENKEY_ROMREAD,1)) // block_mode
{
osEPiStartDma(handle, &iomsg, OS_READ);
/* wait DMA read end */
(void)osRecvMesg(&dmaMsgQ, NULL, OS_MESG_BLOCK);
dd_freeToken(_token);
return (s32)size;
}
return 0;
}
void
g_dmaNode_insert( TDmaNode *_new, TDmaNode *_dest )
{
_new->node.next = (ALLink *)_dest;
_new->node.prev = (ALLink *)0;
_dest->node.prev = (ALLink *)_new;
}