mirror of
https://github.com/ApacheThunder/GBA-Exploader.git
synced 2025-06-18 19:45:39 -04:00
540515c7fc
* Can now use gbaframes specific to a gba rom being loaded to ram/flash. Have a bmp file with filename matching the game rom being flashed in GBA_SIGN path. If it finds a matching BMP it will use that before falling back to the default gbaframe.bmp paths. * nds-bootstrap now used for booting retail NDS roms from file browser. Note that currently GBA-Exploader does not create new save files so only games with existing save files (currently hardcoded to GBA_SAV path like with GBA games) can be booted with this.
577 lines
18 KiB
C
577 lines
18 KiB
C
#include <nds/system.h>
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#include <nds/bios.h>
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#include <nds/arm7/sdmmc.h>
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#include <nds/interrupts.h>
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#include <nds/fifocommon.h>
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#include <nds/fifomessages.h>
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#include <stddef.h>
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static struct mmcdevice deviceSD;
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static struct mmcdevice deviceNAND;
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/*mmcdevice *getMMCDevice(int drive) {
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if(drive==0) return &deviceNAND;
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return &deviceSD;
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}
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*/
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//---------------------------------------------------------------------------------
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int geterror(struct mmcdevice *ctx) {
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//---------------------------------------------------------------------------------
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//if(ctx->error == 0x4) return -1;
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//else return 0;
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return (ctx->error << 29) >> 31;
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}
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//---------------------------------------------------------------------------------
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void setTarget(struct mmcdevice *ctx) {
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//---------------------------------------------------------------------------------
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sdmmc_mask16(REG_SDPORTSEL,0x3,(u16)ctx->devicenumber);
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setckl(ctx->clk);
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if (ctx->SDOPT == 0) {
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sdmmc_mask16(REG_SDOPT, 0, 0x8000);
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} else {
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sdmmc_mask16(REG_SDOPT, 0x8000, 0);
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}
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}
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//---------------------------------------------------------------------------------
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void sdmmc_send_command(struct mmcdevice *ctx, uint32_t cmd, uint32_t args) {
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//---------------------------------------------------------------------------------
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int i;
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bool getSDRESP = (cmd << 15) >> 31;
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uint16_t flags = (cmd << 15) >> 31;
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const bool readdata = cmd & 0x20000;
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const bool writedata = cmd & 0x40000;
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if(readdata || writedata)
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{
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flags |= TMIO_STAT0_DATAEND;
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}
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ctx->error = 0;
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while((sdmmc_read16(REG_SDSTATUS1) & TMIO_STAT1_CMD_BUSY)); //mmc working?
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sdmmc_write16(REG_SDIRMASK0,0);
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sdmmc_write16(REG_SDIRMASK1,0);
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sdmmc_write16(REG_SDSTATUS0,0);
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sdmmc_write16(REG_SDSTATUS1,0);
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#ifdef DATA32_SUPPORT
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// if(readdata)sdmmc_mask16(REG_DATACTL32, 0x1000, 0x800);
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// if(writedata)sdmmc_mask16(REG_DATACTL32, 0x800, 0x1000);
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// sdmmc_mask16(REG_DATACTL32,0x1800,2);
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#else
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sdmmc_mask16(REG_DATACTL32,0x1800,0);
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#endif
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sdmmc_write16(REG_SDCMDARG0,args &0xFFFF);
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sdmmc_write16(REG_SDCMDARG1,args >> 16);
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sdmmc_write16(REG_SDCMD,cmd &0xFFFF);
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uint32_t size = ctx->size;
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uint16_t *dataPtr = (uint16_t*)ctx->data;
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uint32_t *dataPtr32 = (uint32_t*)ctx->data;
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bool useBuf = ( NULL != dataPtr );
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bool useBuf32 = (useBuf && (0 == (3 & ((uint32_t)dataPtr))));
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uint16_t status0 = 0;
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while(1) {
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volatile uint16_t status1 = sdmmc_read16(REG_SDSTATUS1);
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#ifdef DATA32_SUPPORT
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volatile uint16_t ctl32 = sdmmc_read16(REG_SDDATACTL32);
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if((ctl32 & 0x100))
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#else
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if((status1 & TMIO_STAT1_RXRDY))
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#endif
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{
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if(readdata) {
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if(useBuf) {
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sdmmc_mask16(REG_SDSTATUS1, TMIO_STAT1_RXRDY, 0);
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if(size > 0x1FF) {
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#ifdef DATA32_SUPPORT
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if(useBuf32) {
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for(i = 0; i<0x200; i+=4) {
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*dataPtr32++ = sdmmc_read32(REG_SDFIFO32);
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}
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} else {
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#endif
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for(i = 0; i<0x200; i+=2) {
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*dataPtr++ = sdmmc_read16(REG_SDFIFO);
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}
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#ifdef DATA32_SUPPORT
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}
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#endif
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size -= 0x200;
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}
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}
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sdmmc_mask16(REG_SDDATACTL32, 0x800, 0);
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}
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}
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#ifdef DATA32_SUPPORT
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if(!(ctl32 & 0x200))
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#else
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if((status1 & TMIO_STAT1_TXRQ))
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#endif
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{
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if(writedata) {
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if(useBuf) {
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sdmmc_mask16(REG_SDSTATUS1, TMIO_STAT1_TXRQ, 0);
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//sdmmc_write16(REG_SDSTATUS1,~TMIO_STAT1_TXRQ);
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if(size > 0x1FF) {
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#ifdef DATA32_SUPPORT
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for(i = 0; i<0x200; i+=4) {
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sdmmc_write32(REG_SDFIFO32,*dataPtr32++);
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}
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#else
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for(i = 0; i<0x200; i+=2) {
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sdmmc_write16(REG_SDFIFO,*dataPtr++);
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}
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#endif
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size -= 0x200;
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}
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}
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sdmmc_mask16(REG_SDDATACTL32, 0x1000, 0);
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}
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}
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if(status1 & TMIO_MASK_GW) {
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ctx->error |= 4;
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break;
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}
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if(!(status1 & TMIO_STAT1_CMD_BUSY)) {
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status0 = sdmmc_read16(REG_SDSTATUS0);
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if(sdmmc_read16(REG_SDSTATUS0) & TMIO_STAT0_CMDRESPEND) {
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ctx->error |= 0x1;
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}
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if(status0 & TMIO_STAT0_DATAEND) {
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ctx->error |= 0x2;
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}
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if((status0 & flags) == flags)
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break;
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}
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}
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ctx->stat0 = sdmmc_read16(REG_SDSTATUS0);
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ctx->stat1 = sdmmc_read16(REG_SDSTATUS1);
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sdmmc_write16(REG_SDSTATUS0,0);
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sdmmc_write16(REG_SDSTATUS1,0);
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if(getSDRESP != 0) {
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ctx->ret[0] = sdmmc_read16(REG_SDRESP0) | (sdmmc_read16(REG_SDRESP1) << 16);
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ctx->ret[1] = sdmmc_read16(REG_SDRESP2) | (sdmmc_read16(REG_SDRESP3) << 16);
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ctx->ret[2] = sdmmc_read16(REG_SDRESP4) | (sdmmc_read16(REG_SDRESP5) << 16);
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ctx->ret[3] = sdmmc_read16(REG_SDRESP6) | (sdmmc_read16(REG_SDRESP7) << 16);
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}
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}
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//---------------------------------------------------------------------------------
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int sdmmc_cardinserted() {
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//---------------------------------------------------------------------------------
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return 1; //sdmmc_cardready;
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}
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static bool sdmmc_controller_initialised = false;
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//---------------------------------------------------------------------------------
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void sdmmc_controller_init( bool force_init ) {
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//---------------------------------------------------------------------------------
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if (!force_init && sdmmc_controller_initialised) return;
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deviceSD.isSDHC = 0;
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deviceSD.SDOPT = 0;
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deviceSD.res = 0;
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deviceSD.initarg = 0;
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deviceSD.clk = 0x80;
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deviceSD.devicenumber = 0;
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deviceNAND.isSDHC = 0;
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deviceNAND.SDOPT = 0;
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deviceNAND.res = 0;
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deviceNAND.initarg = 1;
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deviceNAND.clk = 0x80;
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deviceNAND.devicenumber = 1;
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*(vu16*)(SDMMC_BASE + REG_SDDATACTL32) &= 0xF7FFu;
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*(vu16*)(SDMMC_BASE + REG_SDDATACTL32) &= 0xEFFFu;
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#ifdef DATA32_SUPPORT
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*(vu16*)(SDMMC_BASE + REG_SDDATACTL32) |= 0x402u;
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#else
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*(vu16*)(SDMMC_BASE + REG_SDDATACTL32) |= 0x402u;
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#endif
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*(vu16*)(SDMMC_BASE + REG_SDDATACTL) = (*(vu16*)(SDMMC_BASE + REG_SDDATACTL) & 0xFFDD) | 2;
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#ifdef DATA32_SUPPORT
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*(vu16*)(SDMMC_BASE + REG_SDDATACTL32) &= 0xFFFFu;
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*(vu16*)(SDMMC_BASE + REG_SDDATACTL) &= 0xFFDFu;
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*(vu16*)(SDMMC_BASE + REG_SDBLKLEN32) = 512;
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#else
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*(vu16*)(SDMMC_BASE + REG_SDDATACTL32) &= 0xFFFDu;
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*(vu16*)(SDMMC_BASE + REG_SDDATACTL) &= 0xFFDDu;
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*(vu16*)(SDMMC_BASE + REG_SDBLKLEN32) = 0;
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#endif
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*(vu16*)(SDMMC_BASE + REG_SDBLKCOUNT32) = 1;
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*(vu16*)(SDMMC_BASE + REG_SDRESET) &= 0xFFFEu;
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*(vu16*)(SDMMC_BASE + REG_SDRESET) |= 1u;
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*(vu16*)(SDMMC_BASE + REG_SDIRMASK0) |= TMIO_MASK_ALL;
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*(vu16*)(SDMMC_BASE + REG_SDIRMASK1) |= TMIO_MASK_ALL>>16;
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*(vu16*)(SDMMC_BASE + 0x0fc) |= 0xDBu; //SDCTL_RESERVED7
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*(vu16*)(SDMMC_BASE + 0x0fe) |= 0xDBu; //SDCTL_RESERVED8
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*(vu16*)(SDMMC_BASE + REG_SDPORTSEL) &= 0xFFFCu;
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#ifdef DATA32_SUPPORT
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*(vu16*)(SDMMC_BASE + REG_SDCLKCTL) = 0x20;
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*(vu16*)(SDMMC_BASE + REG_SDOPT) = 0x40EE;
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#else
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*(vu16*)(SDMMC_BASE + REG_SDCLKCTL) = 0x40; //Nintendo sets this to 0x20
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*(vu16*)(SDMMC_BASE + REG_SDOPT) = 0x40EB; //Nintendo sets this to 0x40EE
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#endif
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*(vu16*)(SDMMC_BASE + REG_SDPORTSEL) &= 0xFFFCu;
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*(vu16*)(SDMMC_BASE + REG_SDBLKLEN) = 512;
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*(vu16*)(SDMMC_BASE + REG_SDSTOP) = 0;
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sdmmc_controller_initialised = true;
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setTarget(&deviceSD);
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}
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//---------------------------------------------------------------------------------
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static u32 calcSDSize(u8* csd, int type) {
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//---------------------------------------------------------------------------------
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u32 result = 0;
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if (type == -1) type = csd[14] >> 6;
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switch (type) {
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case 0:
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{
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u32 block_len = csd[9] & 0xf;
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block_len = 1 << block_len;
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u32 mult = (csd[4] >> 7) | ((csd[5] & 3) << 1);
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mult = 1 << (mult + 2);
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result = csd[8] & 3;
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result = (result << 8) | csd[7];
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result = (result << 2) | (csd[6] >> 6);
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result = (result + 1) * mult * block_len / 512;
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}
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break;
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case 1:
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result = csd[7] & 0x3f;
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result = (result << 8) | csd[6];
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result = (result << 8) | csd[5];
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result = (result + 1) * 1024;
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break;
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}
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return result;
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}
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//---------------------------------------------------------------------------------
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int sdmmc_sdcard_init() {
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//---------------------------------------------------------------------------------
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setTarget(&deviceSD);
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swiDelay(0xF000);
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// card reset
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sdmmc_send_command(&deviceSD,0,0);
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// CMD8 0x1AA
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sdmmc_send_command(&deviceSD,0x10408,0x1AA);
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u32 temp = (deviceSD.error & 0x1) << 0x1E;
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u32 temp2 = 0;
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do {
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do {
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// CMD55
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sdmmc_send_command(&deviceSD,0x10437,deviceSD.initarg << 0x10);
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// ACMD41
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sdmmc_send_command(&deviceSD,0x10769,0x00FF8000 | temp);
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temp2 = 1;
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} while ( !(deviceSD.error & 1) );
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} while((deviceSD.ret[0] & 0x80000000) == 0);
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if(!((deviceSD.ret[0] >> 30) & 1) || !temp)
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temp2 = 0;
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deviceSD.isSDHC = temp2;
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sdmmc_send_command(&deviceSD,0x10602,0);
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if (deviceSD.error & 0x4) return -1;
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sdmmc_send_command(&deviceSD,0x10403,0);
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if (deviceSD.error & 0x4) return -1;
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deviceSD.initarg = deviceSD.ret[0] >> 0x10;
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sdmmc_send_command(&deviceSD,0x10609,deviceSD.initarg << 0x10);
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if (deviceSD.error & 0x4) return -1;
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deviceSD.total_size = calcSDSize((u8*)&deviceSD.ret[0],-1);
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deviceSD.clk = 1;
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setckl(1);
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sdmmc_send_command(&deviceSD,0x10507,deviceSD.initarg << 0x10);
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if (deviceSD.error & 0x4) return -1;
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// CMD55
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sdmmc_send_command(&deviceSD,0x10437,deviceSD.initarg << 0x10);
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if (deviceSD.error & 0x4) return -1;
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// ACMD42
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sdmmc_send_command(&deviceSD,0x1076A,0x0);
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if (deviceSD.error & 0x4) return -1;
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// CMD55
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sdmmc_send_command(&deviceSD,0x10437,deviceSD.initarg << 0x10);
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if (deviceSD.error & 0x4) return -1;
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deviceSD.SDOPT = 1;
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sdmmc_send_command(&deviceSD,0x10446,0x2);
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if (deviceSD.error & 0x4) return -1;
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sdmmc_send_command(&deviceSD,0x1040D,deviceSD.initarg << 0x10);
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if (deviceSD.error & 0x4) return -1;
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sdmmc_send_command(&deviceSD,0x10410,0x200);
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if (deviceSD.error & 0x4) return -1;
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deviceSD.clk |= 0x200;
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return 0;
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}
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//---------------------------------------------------------------------------------
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int sdmmc_nand_init() {
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//---------------------------------------------------------------------------------
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setTarget(&deviceNAND);
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swiDelay(0xF000);
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sdmmc_send_command(&deviceNAND,0,0);
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do {
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do {
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sdmmc_send_command(&deviceNAND,0x10701,0x100000);
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} while ( !(deviceNAND.error & 1) );
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}
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while((deviceNAND.ret[0] & 0x80000000) == 0);
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sdmmc_send_command(&deviceNAND,0x10602,0x0);
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if((deviceNAND.error & 0x4))return -1;
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sdmmc_send_command(&deviceNAND,0x10403,deviceNAND.initarg << 0x10);
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if((deviceNAND.error & 0x4))return -1;
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sdmmc_send_command(&deviceNAND,0x10609,deviceNAND.initarg << 0x10);
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if((deviceNAND.error & 0x4))return -1;
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deviceNAND.total_size = calcSDSize((uint8_t*)&deviceNAND.ret[0],0);
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deviceNAND.clk = 1;
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setckl(1);
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sdmmc_send_command(&deviceNAND,0x10407,deviceNAND.initarg << 0x10);
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if((deviceNAND.error & 0x4))return -1;
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deviceNAND.SDOPT = 1;
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sdmmc_send_command(&deviceNAND,0x10506,0x3B70100);
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if((deviceNAND.error & 0x4))return -1;
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sdmmc_send_command(&deviceNAND,0x10506,0x3B90100);
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if((deviceNAND.error & 0x4))return -1;
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sdmmc_send_command(&deviceNAND,0x1040D,deviceNAND.initarg << 0x10);
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if((deviceNAND.error & 0x4))return -1;
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sdmmc_send_command(&deviceNAND,0x10410,0x200);
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if((deviceNAND.error & 0x4))return -1;
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deviceNAND.clk |= 0x200;
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setTarget(&deviceSD);
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return 0;
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}
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//---------------------------------------------------------------------------------
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int sdmmc_readsectors(struct mmcdevice *device, u32 sector_no, u32 numsectors, void *out) {
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//---------------------------------------------------------------------------------
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if (device->isSDHC == 0) sector_no <<= 9;
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setTarget(device);
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sdmmc_write16(REG_SDSTOP,0x100);
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#ifdef DATA32_SUPPORT
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sdmmc_write16(REG_SDBLKCOUNT32,numsectors);
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sdmmc_write16(REG_SDBLKLEN32,0x200);
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#endif
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sdmmc_write16(REG_SDBLKCOUNT,numsectors);
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device->data = out;
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device->size = numsectors << 9;
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sdmmc_send_command(device,0x33C12,sector_no);
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setTarget(&deviceSD);
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return geterror(device);
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}
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//---------------------------------------------------------------------------------
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int sdmmc_writesectors(struct mmcdevice *device, u32 sector_no, u32 numsectors, void *in) {
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//---------------------------------------------------------------------------------
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if (device->isSDHC == 0)
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sector_no <<= 9;
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setTarget(device);
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sdmmc_write16(REG_SDSTOP,0x100);
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#ifdef DATA32_SUPPORT
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sdmmc_write16(REG_SDBLKCOUNT32,numsectors);
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sdmmc_write16(REG_SDBLKLEN32,0x200);
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#endif
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sdmmc_write16(REG_SDBLKCOUNT,numsectors);
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device->data = in;
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device->size = numsectors << 9;
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sdmmc_send_command(device,0x52C19,sector_no);
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setTarget(&deviceSD);
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return geterror(device);
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}
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//---------------------------------------------------------------------------------
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void sdmmc_get_cid(int devicenumber, u32 *cid) {
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//---------------------------------------------------------------------------------
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struct mmcdevice *device = (devicenumber == 1 ? &deviceNAND : &deviceSD);
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int oldIME = enterCriticalSection();
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setTarget(device);
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// use cmd7 to put sd card in standby mode
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// CMD7
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sdmmc_send_command(device, 0x10507, 0);
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// get sd card info
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// use cmd10 to read CID
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sdmmc_send_command(device, 0x1060A, device->initarg << 0x10);
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for(int i = 0; i < 4; ++i)
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cid[i] = device->ret[i];
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// put sd card back to transfer mode
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// CMD7
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sdmmc_send_command(device, 0x10507, device->initarg << 0x10);
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leaveCriticalSection(oldIME);
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}
|
|
|
|
//---------------------------------------------------------------------------------
|
|
void sdmmcMsgHandler(int bytes, void *user_data) {
|
|
//---------------------------------------------------------------------------------
|
|
FifoMessage msg;
|
|
int retval = 0;
|
|
|
|
fifoGetDatamsg(FIFO_SDMMC, bytes, (u8*)&msg);
|
|
|
|
int oldIME = enterCriticalSection();
|
|
switch (msg.type) {
|
|
|
|
case SDMMC_SD_READ_SECTORS:
|
|
retval = sdmmc_readsectors(&deviceSD, msg.sdParams.startsector, msg.sdParams.numsectors, msg.sdParams.buffer);
|
|
break;
|
|
case SDMMC_SD_WRITE_SECTORS:
|
|
retval = sdmmc_writesectors(&deviceSD, msg.sdParams.startsector, msg.sdParams.numsectors, msg.sdParams.buffer);
|
|
break;
|
|
case SDMMC_NAND_READ_SECTORS:
|
|
retval = sdmmc_readsectors(&deviceNAND, msg.sdParams.startsector, msg.sdParams.numsectors, msg.sdParams.buffer);
|
|
break;
|
|
case SDMMC_NAND_WRITE_SECTORS:
|
|
retval = sdmmc_writesectors(&deviceNAND, msg.sdParams.startsector, msg.sdParams.numsectors, msg.sdParams.buffer);
|
|
break;
|
|
}
|
|
|
|
leaveCriticalSection(oldIME);
|
|
|
|
fifoSendValue32(FIFO_SDMMC, retval);
|
|
}
|
|
|
|
//---------------------------------------------------------------------------------
|
|
int sdmmc_nand_startup() {
|
|
//---------------------------------------------------------------------------------
|
|
sdmmc_controller_init(false);
|
|
return sdmmc_nand_init();
|
|
}
|
|
|
|
//---------------------------------------------------------------------------------
|
|
int sdmmc_sd_startup() {
|
|
//---------------------------------------------------------------------------------
|
|
sdmmc_controller_init(false);
|
|
return sdmmc_sdcard_init();
|
|
}
|
|
|
|
//---------------------------------------------------------------------------------
|
|
void sdmmcValueHandler(u32 value, void* user_data) {
|
|
//---------------------------------------------------------------------------------
|
|
int result = 0;
|
|
int sdflag = 0;
|
|
int oldIME = enterCriticalSection();
|
|
|
|
switch(value) {
|
|
|
|
case SDMMC_HAVE_SD:
|
|
result = sdmmc_read16(REG_SDSTATUS0);
|
|
break;
|
|
|
|
case SDMMC_SD_START:
|
|
sdflag = 1;
|
|
/* Falls through. */
|
|
case SDMMC_NAND_START:
|
|
if (sdmmc_read16(REG_SDSTATUS0) == 0) {
|
|
result = 1;
|
|
} else {
|
|
result = (sdflag == 1 ) ? sdmmc_sd_startup() : sdmmc_nand_startup();
|
|
}
|
|
break;
|
|
|
|
case SDMMC_SD_IS_INSERTED:
|
|
result = sdmmc_cardinserted();
|
|
break;
|
|
|
|
case SDMMC_SD_STOP:
|
|
break;
|
|
|
|
case SDMMC_NAND_SIZE:
|
|
result = deviceNAND.total_size;
|
|
break;
|
|
}
|
|
|
|
leaveCriticalSection(oldIME);
|
|
|
|
fifoSendValue32(FIFO_SDMMC, result);
|
|
}
|
|
|
|
//---------------------------------------------------------------------------------
|
|
int sdmmc_sdcard_readsectors(u32 sector_no, u32 numsectors, void *out) {
|
|
//---------------------------------------------------------------------------------
|
|
return sdmmc_readsectors(&deviceSD, sector_no, numsectors, out);
|
|
}
|
|
|
|
//---------------------------------------------------------------------------------
|
|
int sdmmc_sdcard_writesectors(u32 sector_no, u32 numsectors, void *in) {
|
|
//---------------------------------------------------------------------------------
|
|
return sdmmc_writesectors(&deviceSD, sector_no, numsectors, in);
|
|
}
|
|
|
|
//---------------------------------------------------------------------------------
|
|
int sdmmc_nand_readsectors(u32 sector_no, u32 numsectors, void *out) {
|
|
//---------------------------------------------------------------------------------
|
|
return sdmmc_readsectors(&deviceNAND, sector_no, numsectors, out);
|
|
}
|
|
|
|
//---------------------------------------------------------------------------------
|
|
int sdmmc_nand_writesectors(u32 sector_no, u32 numsectors, void *in) {
|
|
//---------------------------------------------------------------------------------
|
|
return sdmmc_writesectors(&deviceNAND, sector_no, numsectors, in);
|
|
}
|
|
|
|
|