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WRAM経由でカードリードするための関数追加（動作未確認）

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git-svn-id: file:///Users/lillianskinner/Downloads/platinum/twl/TwlIPL/trunk@1339 b08762b0-b915-fc4b-9d8c-17b2551a87ff
This commit is contained in:
yoshida_teruhisa 2008-05-14 06:56:20 +00:00
parent d25bd963ce
commit b3df113d3f
2 changed files with 67 additions and 1 deletions
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1
build/libraries_sysmenu/sysmenu/ARM9/include/fs_wram.h
View File

@ -58,6 +58,7 @@ BOOL FS_InitWramTransfer( u32 priority );
arg コールバックに渡される引数
*/
BOOL FS_ReadFileViaWram( FSFile *p_file, void *dst, s32 len, MIWramPos wram, s32 slot, MIWramSize size, FSWramCallback callback, void* arg );
BOOL HOTSW_ReadCardViaWram( void *src, void *dst, s32 len, MIWramPos wram, s32 slot, MIWramSize size, FSWramCallback callback, void* arg );
/*
FS_WriteFileViaWram
FS/FATFSに対して同期Writeを行う

67
build/libraries_sysmenu/sysmenu/ARM9/src/fs_wram.c
View File

@ -17,6 +17,7 @@
#include <twl.h>
#include "fs_wram.h"
#include <sysmenu.h>
/*
基本概念
@ -106,7 +107,8 @@
typedef enum FSWramCommand
{
FS_WRAM_COMMAND_READ,
FS_WRAM_COMMAND_WRITE
FS_WRAM_COMMAND_WRITE,
FS_WRAM_COMMAND_READ_CARD
}
FSWramCommand;
@ -133,6 +135,7 @@ typedef struct FSWramWork
FSWramCommand command;
FSFile *p_file;
void *card_src;
int nums; // WRAMスロット数
u32 base; // WRAMの先頭アドレス
@ -185,6 +188,11 @@ static void FSi_WramThread(void* arg)
result = FS_ReadFile( FSiWramWork.p_file, cmd->addr, cmd->length );
//OS_TPrintf("%s: (0x%08X) %d msec\n", __func__, cmd->addr, (int)OS_TicksToMilliSeconds(OS_GetTick()));
break;
case FS_WRAM_COMMAND_READ_CARD:
// カードリード
HOTSW_ReadCardData( FSiWramWork.card_src, cmd->addr, (u32)cmd->length);
result = cmd->length;//暫定
break;
case FS_WRAM_COMMAND_WRITE:
result = FS_WriteFile( FSiWramWork.p_file, cmd->addr, cmd->length );
//OS_TPrintf("%s: (0x%08X) %d msec\n", __func__, cmd->addr, (int)OS_TicksToMilliSeconds(OS_GetTick()));
@ -359,6 +367,63 @@ static BOOL FSi_WriteWram(const u8* src, u32 len, MIWramPos wram, s32 slot, FSWr
return TRUE;
}
BOOL HOTSW_ReadCardViaWram( void *src, void *dst, s32 len, MIWramPos wram, s32 slot, MIWramSize size, FSWramCallback callback, void* arg )
{
OSIntrMode enabled = OS_DisableInterrupts();
BOOL result;
int l,n;
SDK_ASSERT( wram != MI_WRAM_A );
if ( FSiWramWork.busy ) // 転送中
{
OS_RestoreInterrupts(enabled);
return FALSE;
}
FSiWramWork.busy = TRUE;
OS_RestoreInterrupts(enabled);
// WRAMの確保
FSiWramWork.base = MI_AllocWramSlot( wram, slot, size, MI_WRAM_ARM9 );
if ( FSiWramWork.base == 0 )
{
FSiWramWork.busy = FALSE;
OS_TPrintf("Cannot allocate WRAM %d, %d, %d\n", wram, slot, size);
return FALSE;
}
// cash care
DC_InvalidateRange((void *)FSiWramWork.base, size);
// パラメータ設定
FSiWramWork.command = FS_WRAM_COMMAND_READ_CARD;
FSiWramWork.card_src = src;
FSiWramWork.nums = MI_WRAM_ENUM_TO_SIZE( size ) * 1024 / FS_WRAM_SLOT_SIZE;
// 必要に応じて7側にスイッチ可能なWRAMとして指定
n = 0;
for(l=0;l<FSiWramWork.nums;l++)
{
n = n << 1;
n += (1 << slot);
}
if( wram == MI_WRAM_B )
{
FSi_SetSwitchableWramSlots(n,0);
}else if ( wram == MI_WRAM_C )
{
FSi_SetSwitchableWramSlots(0,n);
}
// WRAM->ARM9起動
result = FSi_ReadWram(dst, (u32)len, wram, slot, callback, arg);
MI_FreeWramSlot( wram, slot, size, MI_WRAM_ARM9 );
FSi_SetSwitchableWramSlots(0,0); // スイッチ可能WRAMの指定を元に戻す
FSiWramWork.busy = FALSE;
return result;
}
BOOL FS_ReadFileViaWram( FSFile *p_file, void *dst, s32 len, MIWramPos wram, s32 slot, MIWramSize size, FSWramCallback callback, void* arg )
{
OSIntrMode enabled = OS_DisableInterrupts();