usbloadergx/source/usbloader/sdhc.c

#include <stdio.h>
#include <string.h>
#include <ogcsys.h>
#include <sdcard/wiisd_io.h>

#include "sdhc.h"

/* IOCTL comamnds */
#define IOCTL_SDHC_INIT     0x01
#define IOCTL_SDHC_READ     0x02
#define IOCTL_SDHC_WRITE    0x03
#define IOCTL_SDHC_ISINSERTED   0x04

#define SDHC_HEAPSIZE       0x8000
#define SDHC_MEM2_SIZE      0x10000

int sdhc_mode_sd = 0;

/* Variables */
static char fs[] ATTRIBUTE_ALIGN( 32 ) = "/dev/sdio/sdhc";

static s32 hid = -1, fd = -1;
static u32 sector_size = SDHC_SECTOR_SIZE;
static void *sdhc_buf2;

extern void* SYS_AllocArena2MemLo(u32 size, u32 align);

bool SDHC_Init(void)
{
    s32 ret;

    if (sdhc_mode_sd)
    {
        return __io_wiisd.startup();
    }

    /* Already open */
    if (fd >= 0) return true;

    /* Create heap */
    if (hid < 0)
    {
        hid = iosCreateHeap(SDHC_HEAPSIZE);
        if (hid < 0) goto err;
    }

    // allocate buf2
    if (sdhc_buf2 == NULL)
    {
        sdhc_buf2 = SYS_AllocArena2MemLo(SDHC_MEM2_SIZE, 32);
    }

    /* Open SDHC device */
    fd = IOS_Open(fs, 0);
    if (fd < 0) goto err;

    /* Initialize SDHC */
    ret = IOS_IoctlvFormat(hid, fd, IOCTL_SDHC_INIT, ":");
    if (ret) goto err;

    return true;

    err:
    /* Close SDHC device */
    if (fd >= 0)
    {
        IOS_Close(fd);
        fd = -1;
    }

    return false;
}

bool SDHC_Close(void)
{
    if (sdhc_mode_sd)
    {
        return __io_wiisd.shutdown();
    }

    /* Close SDHC device */
    if (fd >= 0)
    {
        IOS_Close(fd);
        fd = -1;
    }

    /*if (hid > 0) {
     iosDestroyHeap(hid);
     hid = -1;
     }*/

    return true;
}

bool SDHC_IsInserted(void)
{
    s32 ret;
    if (sdhc_mode_sd)
    {
        return __io_wiisd.isInserted();
    }

    /* Check if SD card is inserted */
    ret = IOS_IoctlvFormat(hid, fd, IOCTL_SDHC_ISINSERTED, ":");

    return (!ret) ? true : false;
}

bool SDHC_ReadSectors(u32 sector, u32 count, void *buffer)
{
    //printf("SD-R(%u %u)\n", sector, count);
    if (sdhc_mode_sd)
    {
        return __io_wiisd.readSectors(sector, count, buffer);
    }

    void *buf = (void *) buffer;
    u32 len = (sector_size * count);

    s32 ret;

    /* Device not opened */
    if (fd < 0) return false;

    /* Buffer not aligned */
    if ((u32) buffer & 0x1F)
    {
        /* Allocate memory */
        //buf = iosAlloc(hid, len);
        buf = sdhc_buf2;
        if (!buf) return false;
    }

    /* Read data */
    ret = IOS_IoctlvFormat(hid, fd, IOCTL_SDHC_READ, "ii:d", sector, count, buf, len);

    /* Copy data */
    if (buf != buffer)
    {
        memcpy(buffer, buf, len);
        //iosFree(hid, buf);
    }

    return (!ret) ? true : false;
}

bool SDHC_WriteSectors(u32 sector, u32 count, void *buffer)
{
    if (sdhc_mode_sd)
    {
        return __io_wiisd.writeSectors(sector, count, buffer);
    }

    void *buf = (void *) buffer;
    u32 len = (sector_size * count);

    s32 ret;

    /* Device not opened */
    if (fd < 0) return false;

    /* Buffer not aligned */
    if ((u32) buffer & 0x1F)
    {
        /* Allocate memory */
        //buf = iosAlloc(hid, len);
        buf = sdhc_buf2;
        if (!buf) return false;

        /* Copy data */
        memcpy(buf, buffer, len);
    }

    /* Read data */
    ret = IOS_IoctlvFormat(hid, fd, IOCTL_SDHC_WRITE, "ii:d", sector, count, buf, len);

    /* Free memory */
    //if (buf != buffer)
    //  iosFree(hid, buf);

    return (!ret) ? true : false;
}

bool SDHC_ClearStatus(void)
{
    return true;
}

bool __io_SDHC_Close(void)
{
    // do nothing.
    return true;
}

bool __io_SDHC_NOP(void)
{
    // do nothing.
    return true;
}

const DISC_INTERFACE __io_sdhc = { DEVICE_TYPE_WII_SD, FEATURE_MEDIUM_CANREAD | FEATURE_MEDIUM_CANWRITE
        | FEATURE_WII_SD, (FN_MEDIUM_STARTUP) &SDHC_Init, (FN_MEDIUM_ISINSERTED) &SDHC_IsInserted,
        (FN_MEDIUM_READSECTORS) &SDHC_ReadSectors, (FN_MEDIUM_WRITESECTORS) &SDHC_WriteSectors,
        (FN_MEDIUM_CLEARSTATUS) &SDHC_ClearStatus,
        //(FN_MEDIUM_SHUTDOWN)&SDHC_Close
        (FN_MEDIUM_SHUTDOWN) &__io_SDHC_Close };

const DISC_INTERFACE __io_sdhc_ro = { DEVICE_TYPE_WII_SD, FEATURE_MEDIUM_CANREAD | FEATURE_WII_SD,
        (FN_MEDIUM_STARTUP) &SDHC_Init, (FN_MEDIUM_ISINSERTED) &SDHC_IsInserted,
        (FN_MEDIUM_READSECTORS) &SDHC_ReadSectors, (FN_MEDIUM_WRITESECTORS) &__io_SDHC_NOP, // &SDHC_WriteSectors,
        (FN_MEDIUM_CLEARSTATUS) &SDHC_ClearStatus,
        //(FN_MEDIUM_SHUTDOWN)&SDHC_Close
        (FN_MEDIUM_SHUTDOWN) &__io_SDHC_Close };