341 lines
8.7 KiB
C
341 lines
8.7 KiB
C
/*-----------------------------------------------------------------------*/
|
|
/* Low level disk I/O module skeleton for FatFs (C)ChaN, 2007 */
|
|
/*-----------------------------------------------------------------------*/
|
|
/* This is a stub disk I/O module that acts as front end of the existing */
|
|
/* disk I/O modules and attach it to FatFs module with common interface. */
|
|
/*-----------------------------------------------------------------------*/
|
|
|
|
#include "hal.h"
|
|
#include "ffconf.h"
|
|
#include "ff.h"
|
|
#include "diskio.h"
|
|
#include "usbh/dev/msd.h"
|
|
#include "fatfs_devices.h"
|
|
|
|
#if HAL_USE_MMC_SPI && HAL_USE_SDC
|
|
#error "cannot specify both MMC_SPI and FATFSDEV_MMC drivers"
|
|
#endif
|
|
|
|
// sanity check for no FAT option selected
|
|
// why is the FAT sources being pulled into the build?
|
|
#if !HAL_USE_MMC_SPI && !HAL_USE_SDC & !HAL_USBH_USE_MSD
|
|
#error "MMC_SPI, FATFSDEV_MMC or USBH_MSD driver must be specified. None was."
|
|
#endif
|
|
|
|
#if !defined(FATFS_HAL_DEVICE)
|
|
#if HAL_USE_MMC_SPI
|
|
#define FATFS_HAL_DEVICE MMCD1
|
|
#else
|
|
#define FATFS_HAL_DEVICE SDCD1
|
|
#endif
|
|
#endif
|
|
|
|
#if HAL_USE_MMC_SPI
|
|
extern MMCDriver FATFS_HAL_DEVICE;
|
|
#endif
|
|
#if HAL_USE_SDC
|
|
extern SDCDriver FATFS_HAL_DEVICE;
|
|
#endif
|
|
#if HAL_USBH_USE_MSD
|
|
#endif
|
|
|
|
#if HAL_USE_RTC
|
|
extern RTCDriver RTCD1;
|
|
#endif
|
|
|
|
|
|
/*-----------------------------------------------------------------------*/
|
|
/* Inidialize a Drive */
|
|
|
|
DSTATUS disk_initialize (
|
|
BYTE pdrv /* Physical drive number (0..) */
|
|
)
|
|
{
|
|
DSTATUS stat;
|
|
|
|
switch (pdrv) {
|
|
#if HAL_USE_MMC_SPI
|
|
case FATFSDEV_MMC:
|
|
stat = 0;
|
|
/* It is initialized externally, just reads the status.*/
|
|
if (blkGetDriverState(&FATFS_HAL_DEVICE) != BLK_READY)
|
|
stat |= STA_NOINIT;
|
|
if (mmcIsWriteProtected(&FATFS_HAL_DEVICE))
|
|
stat |= STA_PROTECT;
|
|
return stat;
|
|
#elif HAL_USE_SDC
|
|
case FATFSDEV_MMC:
|
|
stat = 0;
|
|
/* It is initialized externally, just reads the status.*/
|
|
if (blkGetDriverState(&FATFS_HAL_DEVICE) != BLK_READY)
|
|
stat |= STA_NOINIT;
|
|
if (sdcIsWriteProtected(&FATFS_HAL_DEVICE))
|
|
stat |= STA_PROTECT;
|
|
return stat;
|
|
#endif
|
|
#if HAL_USBH_USE_MSD
|
|
case FATFSDEV_MSD:
|
|
stat = 0;
|
|
/* It is initialized externally, just reads the status.*/
|
|
if (blkGetDriverState(&MSBLKD[0]) != BLK_READY)
|
|
stat |= STA_NOINIT;
|
|
return stat;
|
|
#endif
|
|
}
|
|
return STA_NOINIT;
|
|
}
|
|
|
|
|
|
|
|
/*-----------------------------------------------------------------------*/
|
|
/* Return Disk Status */
|
|
|
|
DSTATUS disk_status (
|
|
BYTE pdrv /* Physical drive number (0..) */
|
|
)
|
|
{
|
|
DSTATUS stat;
|
|
|
|
switch (pdrv) {
|
|
#if HAL_USE_MMC_SPI
|
|
case FATFSDEV_MMC:
|
|
stat = 0;
|
|
/* It is initialized externally, just reads the status.*/
|
|
if (blkGetDriverState(&FATFS_HAL_DEVICE) != BLK_READY)
|
|
stat |= STA_NOINIT;
|
|
if (mmcIsWriteProtected(&FATFS_HAL_DEVICE))
|
|
stat |= STA_PROTECT;
|
|
return stat;
|
|
#elif HAL_USE_SDC
|
|
case FATFSDEV_MMC:
|
|
stat = 0;
|
|
/* It is initialized externally, just reads the status.*/
|
|
if (blkGetDriverState(&FATFS_HAL_DEVICE) != BLK_READY)
|
|
stat |= STA_NOINIT;
|
|
if (sdcIsWriteProtected(&FATFS_HAL_DEVICE))
|
|
stat |= STA_PROTECT;
|
|
return stat;
|
|
#endif
|
|
#if HAL_USBH_USE_MSD
|
|
case FATFSDEV_MSD:
|
|
stat = 0;
|
|
/* It is initialized externally, just reads the status.*/
|
|
if (blkGetDriverState(&MSBLKD[0]) != BLK_READY)
|
|
stat |= STA_NOINIT;
|
|
return stat;
|
|
#endif
|
|
}
|
|
return STA_NOINIT;
|
|
}
|
|
|
|
|
|
|
|
/*-----------------------------------------------------------------------*/
|
|
/* Read Sector(s) */
|
|
|
|
DRESULT disk_read (
|
|
BYTE pdrv, /* Physical drive number (0..) */
|
|
BYTE *buff, /* Data buffer to store read data */
|
|
DWORD sector, /* Sector address (LBA) */
|
|
UINT count /* Number of sectors to read (1..255) */
|
|
)
|
|
{
|
|
switch (pdrv) {
|
|
#if HAL_USE_MMC_SPI
|
|
case FATFSDEV_MMC:
|
|
if (blkGetDriverState(&FATFS_HAL_DEVICE) != BLK_READY)
|
|
return RES_NOTRDY;
|
|
if (mmcStartSequentialRead(&FATFS_HAL_DEVICE, sector))
|
|
return RES_ERROR;
|
|
while (count > 0) {
|
|
if (mmcSequentialRead(&FATFS_HAL_DEVICE, buff))
|
|
return RES_ERROR;
|
|
buff += MMCSD_BLOCK_SIZE;
|
|
count--;
|
|
}
|
|
if (mmcStopSequentialRead(&FATFS_HAL_DEVICE))
|
|
return RES_ERROR;
|
|
return RES_OK;
|
|
#elif HAL_USE_SDC
|
|
case FATFSDEV_MMC:
|
|
if (blkGetDriverState(&FATFS_HAL_DEVICE) != BLK_READY)
|
|
return RES_NOTRDY;
|
|
if (sdcRead(&FATFS_HAL_DEVICE, sector, buff, count))
|
|
return RES_ERROR;
|
|
return RES_OK;
|
|
#endif
|
|
#if HAL_USBH_USE_MSD
|
|
case FATFSDEV_MSD:
|
|
/* It is initialized externally, just reads the status.*/
|
|
if (blkGetDriverState(&MSBLKD[0]) != BLK_READY)
|
|
return RES_NOTRDY;
|
|
if (usbhmsdLUNRead(&MSBLKD[0], sector, buff, count))
|
|
return RES_ERROR;
|
|
return RES_OK;
|
|
#endif
|
|
}
|
|
return RES_PARERR;
|
|
}
|
|
|
|
|
|
|
|
/*-----------------------------------------------------------------------*/
|
|
/* Write Sector(s) */
|
|
|
|
#if !FF_FS_READONLY
|
|
DRESULT disk_write (
|
|
BYTE pdrv, /* Physical drive number (0..) */
|
|
const BYTE *buff, /* Data to be written */
|
|
DWORD sector, /* Sector address (LBA) */
|
|
UINT count /* Number of sectors to write (1..255) */
|
|
)
|
|
{
|
|
|
|
switch (pdrv) {
|
|
#if HAL_USE_MMC_SPI
|
|
case FATFSDEV_MMC:
|
|
if (blkGetDriverState(&FATFS_HAL_DEVICE) != BLK_READY)
|
|
return RES_NOTRDY;
|
|
if (mmcIsWriteProtected(&FATFS_HAL_DEVICE))
|
|
return RES_WRPRT;
|
|
if (mmcStartSequentialWrite(&FATFS_HAL_DEVICE, sector))
|
|
return RES_ERROR;
|
|
|
|
while (count > 0) {
|
|
// invalidate cache on buffer
|
|
cacheBufferFlush(buff, MMCSD_BLOCK_SIZE);
|
|
|
|
if (mmcSequentialWrite(&FATFS_HAL_DEVICE, buff))
|
|
return RES_ERROR;
|
|
buff += MMCSD_BLOCK_SIZE;
|
|
count--;
|
|
}
|
|
if (mmcStopSequentialWrite(&FATFS_HAL_DEVICE))
|
|
return RES_ERROR;
|
|
return RES_OK;
|
|
#elif HAL_USE_SDC
|
|
case FATFSDEV_MMC:
|
|
if (blkGetDriverState(&FATFS_HAL_DEVICE) != BLK_READY)
|
|
return RES_NOTRDY;
|
|
|
|
// invalidate cache on buffer
|
|
cacheBufferFlush(buff, count * MMCSD_BLOCK_SIZE);
|
|
|
|
if (sdcWrite(&FATFS_HAL_DEVICE, sector, buff, count))
|
|
return RES_ERROR;
|
|
|
|
return RES_OK;
|
|
#endif
|
|
#if HAL_USBH_USE_MSD
|
|
case FATFSDEV_MSD:
|
|
/* It is initialized externally, just reads the status.*/
|
|
if (blkGetDriverState(&MSBLKD[0]) != BLK_READY)
|
|
return RES_NOTRDY;
|
|
|
|
// invalidate cache on buffer
|
|
cacheBufferFlush(buff, count * MSBLKD[0].info.blk_size);
|
|
|
|
if (usbhmsdLUNWrite(&MSBLKD[0], sector, buff, count))
|
|
return RES_ERROR;
|
|
return RES_OK;
|
|
#endif
|
|
}
|
|
return RES_PARERR;
|
|
}
|
|
#endif /* _FS_READONLY */
|
|
|
|
|
|
|
|
/*-----------------------------------------------------------------------*/
|
|
/* Miscellaneous Functions */
|
|
|
|
DRESULT disk_ioctl (
|
|
BYTE pdrv, /* Physical drive number (0..) */
|
|
BYTE cmd, /* Control code */
|
|
void *buff /* Buffer to send/receive control data */
|
|
)
|
|
{
|
|
(void)buff;
|
|
|
|
switch (pdrv) {
|
|
#if HAL_USE_MMC_SPI
|
|
case FATFSDEV_MMC:
|
|
switch (cmd) {
|
|
case CTRL_SYNC:
|
|
return RES_OK;
|
|
#if FF_MAX_SS > FF_MIN_SS
|
|
case GET_SECTOR_SIZE:
|
|
*((WORD *)buff) = MMCSD_BLOCK_SIZE;
|
|
return RES_OK;
|
|
#endif
|
|
#if FF_USE_TRIM
|
|
case CTRL_TRIM:
|
|
mmcErase(&FATFS_HAL_DEVICE, *((DWORD *)buff), *((DWORD *)buff + 1));
|
|
return RES_OK;
|
|
#endif
|
|
default:
|
|
return RES_PARERR;
|
|
}
|
|
#elif HAL_USE_SDC
|
|
case FATFSDEV_MMC:
|
|
switch (cmd) {
|
|
case CTRL_SYNC:
|
|
return RES_OK;
|
|
case GET_SECTOR_COUNT:
|
|
*((DWORD *)buff) = mmcsdGetCardCapacity(&FATFS_HAL_DEVICE);
|
|
return RES_OK;
|
|
#if FF_MAX_SS > FF_MIN_SS
|
|
case GET_SECTOR_SIZE:
|
|
*((WORD *)buff) = MMCSD_BLOCK_SIZE;
|
|
return RES_OK;
|
|
#endif
|
|
case GET_BLOCK_SIZE:
|
|
*((DWORD *)buff) = 256; /* 512b blocks in one erase block */
|
|
return RES_OK;
|
|
#if FF_USE_TRIM
|
|
case CTRL_TRIM:
|
|
sdcErase(&FATFS_HAL_DEVICE, *((DWORD *)buff), *((DWORD *)buff + 1));
|
|
return RES_OK;
|
|
#endif
|
|
default:
|
|
return RES_PARERR;
|
|
}
|
|
#endif
|
|
#if HAL_USBH_USE_MSD
|
|
case FATFSDEV_MSD:
|
|
switch (cmd) {
|
|
case CTRL_SYNC:
|
|
return RES_OK;
|
|
case GET_SECTOR_COUNT:
|
|
*((DWORD *)buff) = MSBLKD[0].info.blk_num;
|
|
return RES_OK;
|
|
#if FF_MAX_SS > FF_MIN_SS
|
|
case GET_SECTOR_SIZE:
|
|
*((WORD *)buff) = MSBLKD[0].info.blk_size;
|
|
return RES_OK;
|
|
#endif
|
|
#if FF_USE_TRIM
|
|
#error "unimplemented yet!"
|
|
// case CTRL_TRIM:
|
|
// ....
|
|
// return RES_OK;
|
|
#endif
|
|
default:
|
|
return RES_PARERR;
|
|
}
|
|
#endif
|
|
}
|
|
return RES_PARERR;
|
|
}
|
|
|
|
DWORD get_fattime(void) {
|
|
#if HAL_USE_RTC
|
|
RTCDateTime timespec;
|
|
|
|
rtcGetTime(&RTCD1, ×pec);
|
|
return rtcConvertDateTimeToFAT(×pec);
|
|
#else
|
|
return ((uint32_t)0 | (1 << 16)) | (1 << 21); /* wrong but valid time */
|
|
#endif
|
|
}
|