diff options
Diffstat (limited to 'backends/platform/ds/arm9/source/fat/io_m3sd.c')
| -rw-r--r-- | backends/platform/ds/arm9/source/fat/io_m3sd.c | 375 |
1 files changed, 0 insertions, 375 deletions
diff --git a/backends/platform/ds/arm9/source/fat/io_m3sd.c b/backends/platform/ds/arm9/source/fat/io_m3sd.c index 897f65bd6e..823f94a280 100644 --- a/backends/platform/ds/arm9/source/fat/io_m3sd.c +++ b/backends/platform/ds/arm9/source/fat/io_m3sd.c @@ -373,378 +373,3 @@ LPIO_INTERFACE M3SD_GetInterface(void) { } ; #endif // SUPPORT_M3CF -/* - io_m3sd.c based on io_m3cf.c by SaTa. - - io_m3cf.c based on - - compact_flash.c - By chishm (Michael Chisholm) - - Hardware Routines for reading a compact flash card - using the M3 Perfect CF Adapter - - CF routines modified with help from Darkfader - - This software is completely free. No warranty is provided. - If you use it, please give me credit and email me about your - project at chishm@hotmail.com - - See gba_nds_fat.txt for help and license details. -*/ - - -#include "io_m3sd.h" - -#ifdef SUPPORT_M3SD - -//SD dir control bit cmddir=bit0 clken=bit1 -//output -#define SDDIR (*(volatile u16*)0x8800000) - -//SD send get control bit send=bit0 get=bit1 -//output -#define SDCON (*(volatile u16*)0x9800000) - -//SD output data obyte[7:0]=AD[7:0] -//output -#define SDODA (*(volatile u16*)0x9000000) - -//SD input data AD[7:0]=ibyte[7:0] -//input -#define SDIDA (*(volatile u16*)0x9000000) - -//readsector data1 -#define SDIDA1 (*(volatile u16*)0x9200000) - -//readsector data2 -#define SDIDA2 (*(volatile u16*)0x9400000) - -//readsector data3 -#define SDIDA3 (*(volatile u16*)0x9600000) - -//SD stutas cmdneg=bit0 cmdpos=bit1 issend=bit2 isget=bit3 -//input -#define SDSTA (*(volatile u16*)0x9800000) - -//#define CARD_TIMEOUT 10000000 // Updated due to suggestion from SaTa, otherwise card will timeout sometimes on a write -#define CARD_TIMEOUT (500*100) // M3SD timeout nomal:500 - -//====================================================== -bool M3SD_read1sector(u32 sectorn,u32 TAddr) -{ - u32 i; - int w; - - SDCON=0x8; // bit3:コマンドモード？ - SDIDA1=0x40+17; // コマンド CMD17 - SDIDA2=(sectorn>>7);// セクタH 9ビット=アドレスH １６ビット - SDIDA3=(sectorn<<9);// セクタL 7ビット=アドレスL １６ビット - SDDIR=0x29; // コマンド送信？ - i=0; - - while ( ((SDSTA&0x01) != 0x01)&&(i < CARD_TIMEOUT) ) - { - i++; - } - SDDIR=0x09; - i=0; - SDDIR=0x49; - while ( ((SDSTA&0x40) != 0x40)&&(i < CARD_TIMEOUT) ) - { - i++; - } - SDDIR=0x09; - - SDDIR=0x8;//cmd input clken=0 datadir input clock=0 - SDCON=0x4;//send=0 get=0 en25=1 cmd1=0 - - w = SDDIR; - for(w=0;w<0x100;w++) - { - u16 d16; - u8 *d8=(u8 *)&d16; -// *(u16*)(TAddr+w*2) = SDDIR; // 16bit - d16 = SDDIR; // 16bit - *(u8 *)(TAddr+w*2) =d8[0]; - *(u8 *)(TAddr+w*2+1) =d8[1]; - - } - w = SDDIR; - w = SDDIR; - - if (i >= CARD_TIMEOUT) - return false; - - return true; - -} -//================================================== - - -//====================================================== -void SD_crc16(u16* buff,u16 num,u16* crc16buff); -void SD_data_write(u16 *buff,u16* crc16buff); - -u16 Hal4ATA_StatusByte; - -void Hal4ATA_GetStatus(void) -{ - Hal4ATA_StatusByte = SDSTA; -} - -bool Hal4ATA_WaitOnBusy(void) -{ - Hal4ATA_GetStatus(); - while ( (Hal4ATA_StatusByte & 0x01) != 0x1) - { - Hal4ATA_GetStatus(); - } - return TRUE; -} - -bool Hal4ATA_WaitOnBusyNDrdy(void) -{ - Hal4ATA_GetStatus(); - while ( (Hal4ATA_StatusByte&0x40) !=0x40) - { - Hal4ATA_GetStatus(); - } - return TRUE; -} - - -void SendCommand(u16 command, u32 sectorn) -{ - SDCON=0x8; - SDIDA1=0x40+command; - SDIDA2=(sectorn>>7); - SDIDA3=(sectorn<<9); - - SDDIR=0x29; - Hal4ATA_WaitOnBusy(); - SDDIR=0x09; -} - - -#define DMA3SAD *(u32*)0x040000D4 -#define DMA3DAD *(u32*)0x040000D8 -#define DMA3CNT *(u32*)0x040000DC - -void DMA3(u32 src, u32 dst, u32 cnt) -{ - DMA3SAD=src; - DMA3DAD=dst; - DMA3CNT=cnt; -} - - - -void PassRespond(u32 num) -{ - u32 i,dmanum; - - dmanum=(64+(num<<3))>>2; - SDDIR=0x8; - SDCON=0x4; - DMA3(0x8800000,(u32)&i,0x80400000+dmanum); -} - -//bool M3SD_write1sector(u32 sectorn,u16 * p) -bool M3SD_write1sector(u32 sectorn,u32 p) -{ - u16 crc[4]; - - SendCommand(24,sectorn); - PassRespond(6); - - SDDIR=0x4; - SDCON=0x0; - - SD_crc16((u16 *)p,512,crc); - SD_data_write((u16 *)p,crc); - return true; -} -//================================================== - - -// GBAMP CF Addresses - -#define M3_REG_STS *(vu16*)(0x09800000) // Status of the CF Card / Device control - -#define M3_DATA (vu16*)(0x08800000) // Pointer to buffer of CF data transered from card - -// CF Card status -#define CF_STS_INSERTED1 0x20 -#define CF_STS_INSERTED2 0x30 - -/*----------------------------------------------------------------- -M3SD_IsInserted -Is a compact flash card inserted? -bool return OUT: true if a CF card is inserted ------------------------------------------------------------------*/ -bool M3SD_IsInserted (void) -{ - int i; - u16 sta; - // Change register, then check if value did change - M3_REG_STS = CF_STS_INSERTED1; - - for(i=0;i<CARD_TIMEOUT;i++) - { - sta=M3_REG_STS; - if((sta == CF_STS_INSERTED1)||(sta == CF_STS_INSERTED2)) - { - return true; - //break; - } - } - return false; - -// return ( (sta == CF_STS_INSERTED1)||(sta == CF_STS_INSERTED2) ); -// return true; -} - - -/*----------------------------------------------------------------- -M3SD_ClearStatus -Tries to make the CF card go back to idle mode -bool return OUT: true if a CF card is idle ------------------------------------------------------------------*/ -bool M3SD_ClearStatus (void) -{ - -// int i=SDDIR; - int i; - u16 sta; - - i = 0; - M3_REG_STS = CF_STS_INSERTED1; - while (i < CARD_TIMEOUT) - { - sta=M3_REG_STS; - if( (sta == CF_STS_INSERTED1)||(sta == CF_STS_INSERTED2) )break; - i++; - } - if (i >= CARD_TIMEOUT) - return false; - - return true; -} - - -/*----------------------------------------------------------------- -M3SD_ReadSectors -Read 512 byte sector numbered "sector" into "buffer" -u32 sector IN: address of first 512 byte sector on CF card to read -u8 numSecs IN: number of 512 byte sectors to read, - 1 to 256 sectors can be read, 0 = 256 -void* buffer OUT: pointer to 512 byte buffer to store data in -bool return OUT: true if successful ------------------------------------------------------------------*/ -bool M3SD_ReadSectors (u32 sector, u8 numSecs, void* buffer) -{ - - - //void M3SD_read1sector(u32 sectorn,u32 TAddr) - bool r=true; - int i; - for(i=0;i<numSecs;i++) - { - if(M3SD_read1sector(i + sector , 512*i + (u32) buffer )==false) - { - r=false; - break; - } - } - return r; - -} - - - -/*----------------------------------------------------------------- -M3SD_WriteSectors -Write 512 byte sector numbered "sector" from "buffer" -u32 sector IN: address of 512 byte sector on CF card to read -u8 numSecs IN: number of 512 byte sectors to read, - 1 to 256 sectors can be read, 0 = 256 -void* buffer IN: pointer to 512 byte buffer to read data from -bool return OUT: true if successful ------------------------------------------------------------------*/ -bool M3SD_WriteSectors (u32 sector, u8 numSecs, void* buffer) -{ - - bool r=true; - int i; - for(i=0;i<numSecs;i++) - { - if(M3SD_write1sector(i + sector , 512*i + (u32) buffer )==false) - { - r=false; - break; - } - } - return r; - -// return false; - - -} - - -/*----------------------------------------------------------------- -M3_Unlock -Returns true if M3 was unlocked, false if failed -Added by MightyMax ------------------------------------------------------------------*/ -bool M3SD_Unlock(void) -{ - - // run unlock sequence - volatile unsigned short tmp ; - tmp = *(volatile unsigned short *)0x08000000 ; - tmp = *(volatile unsigned short *)0x08E00002 ; - tmp = *(volatile unsigned short *)0x0800000E ; - tmp = *(volatile unsigned short *)0x08801FFC ; - tmp = *(volatile unsigned short *)0x0800104A ; - tmp = *(volatile unsigned short *)0x08800612 ; - tmp = *(volatile unsigned short *)0x08000000 ; - tmp = *(volatile unsigned short *)0x08801B66 ; - tmp = *(volatile unsigned short *)0x08800006 ; - tmp = *(volatile unsigned short *)0x08000000 ; - // test that we have register access - vu16 sta; - sta=M3_REG_STS; - sta=M3_REG_STS; - if( (sta == CF_STS_INSERTED1)||(sta == CF_STS_INSERTED2) )return true; - - return false; -} - -bool M3SD_Shutdown(void) { - return M3SD_ClearStatus() ; -} ; - -bool M3SD_StartUp(void) { - return M3SD_Unlock() ; -} ; - - -IO_INTERFACE io_m3sd = { - DEVICE_TYPE_M3SD, - FEATURE_MEDIUM_CANREAD | FEATURE_MEDIUM_CANWRITE, - (FN_MEDIUM_STARTUP)&M3SD_StartUp, - (FN_MEDIUM_ISINSERTED)&M3SD_IsInserted, - (FN_MEDIUM_READSECTORS)&M3SD_ReadSectors, - (FN_MEDIUM_WRITESECTORS)&M3SD_WriteSectors, - (FN_MEDIUM_CLEARSTATUS)&M3SD_ClearStatus, - (FN_MEDIUM_SHUTDOWN)&M3SD_Shutdown -} ; - - -LPIO_INTERFACE M3SD_GetInterface(void) { - return &io_m3sd ; -} ; - -#endif // SUPPORT_M3CF |