Merge branch 'master' into mike

1 files changed, 320 insertions, 0 deletions

diff --git a/os/various/fatfs_bindings/fatfs_diskio.c b/os/various/fatfs_bindings/fatfs_diskio.c
new file mode 100644
index 0000000..80d1502
--- /dev/null
+++ b/os/various/fatfs_bindings/fatfs_diskio.c
@@ -0,0 +1,320 @@
+/*-----------------------------------------------------------------------*/
+/* 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 "diskio.h"
+#include "usbh/dev/msd.h"
+
+#if HAL_USE_MMC_SPI && HAL_USE_SDC
+#error "cannot specify both MMC_SPI and SDC drivers"
+#endif
+
+#if HAL_USE_MMC_SPI
+extern MMCDriver MMCD1;
+#elif HAL_USE_SDC
+extern SDCDriver SDCD1;
+#elif HAL_USBH_USE_MSD
+
+#else
+#error "MMC_SPI, SDC or USBH_MSD driver must be specified"
+#endif
+
+/*-----------------------------------------------------------------------*/
+/* Correspondence between physical drive number and physical drive.      */
+#if HAL_USE_MMC_SPI
+#define MMC         0
+#endif
+
+#if HAL_USE_SDC
+#define SDC         0
+#endif
+
+#if HAL_USBH_USE_MSD
+#if defined(MMC) || defined(SDC)
+#define MSDLUN0     1
+#else
+#define MSDLUN0     0
+#endif
+#endif
+
+/*-----------------------------------------------------------------------*/
+/* Inidialize a Drive                                                    */
+
+DSTATUS disk_initialize (
+    BYTE pdrv                /* Physical drive nmuber (0..) */
+)
+{
+  DSTATUS stat;
+
+  switch (pdrv) {
+#if HAL_USE_MMC_SPI
+  case MMC:
+    stat = 0;
+    /* It is initialized externally, just reads the status.*/
+    if (blkGetDriverState(&MMCD1) != BLK_READY)
+      stat |= STA_NOINIT;
+    if (mmcIsWriteProtected(&MMCD1))
+      stat |=  STA_PROTECT;
+    return stat;
+#elif HAL_USE_SDC
+  case SDC:
+    stat = 0;
+    /* It is initialized externally, just reads the status.*/
+    if (blkGetDriverState(&SDCD1) != BLK_READY)
+      stat |= STA_NOINIT;
+    if (sdcIsWriteProtected(&SDCD1))
+      stat |=  STA_PROTECT;
+    return stat;
+#endif
+#if HAL_USBH_USE_MSD
+  case MSDLUN0:
+	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 MMC:
+    stat = 0;
+    /* It is initialized externally, just reads the status.*/
+    if (blkGetDriverState(&MMCD1) != BLK_READY)
+      stat |= STA_NOINIT;
+    if (mmcIsWriteProtected(&MMCD1))
+      stat |= STA_PROTECT;
+    return stat;
+#elif HAL_USE_SDC
+  case SDC:
+    stat = 0;
+    /* It is initialized externally, just reads the status.*/
+    if (blkGetDriverState(&SDCD1) != BLK_READY)
+      stat |= STA_NOINIT;
+    if (sdcIsWriteProtected(&SDCD1))
+      stat |= STA_PROTECT;
+    return stat;
+#endif
+#if HAL_USBH_USE_MSD
+  case MSDLUN0:
+    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 MMC:
+    if (blkGetDriverState(&MMCD1) != BLK_READY)
+      return RES_NOTRDY;
+    if (mmcStartSequentialRead(&MMCD1, sector))
+      return RES_ERROR;
+    while (count > 0) {
+      if (mmcSequentialRead(&MMCD1, buff))
+        return RES_ERROR;
+      buff += MMCSD_BLOCK_SIZE;
+      count--;
+    }
+    if (mmcStopSequentialRead(&MMCD1))
+        return RES_ERROR;
+    return RES_OK;
+#elif HAL_USE_SDC
+  case SDC:
+    if (blkGetDriverState(&SDCD1) != BLK_READY)
+      return RES_NOTRDY;
+    if (sdcRead(&SDCD1, sector, buff, count))
+      return RES_ERROR;
+    return RES_OK;
+#endif
+#if HAL_USBH_USE_MSD
+  case MSDLUN0:
+	/* 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)                                                       */
+
+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 MMC:
+    if (blkGetDriverState(&MMCD1) != BLK_READY)
+        return RES_NOTRDY;
+    if (mmcIsWriteProtected(&MMCD1))
+        return RES_WRPRT;
+    if (mmcStartSequentialWrite(&MMCD1, sector))
+        return RES_ERROR;
+    while (count > 0) {
+        if (mmcSequentialWrite(&MMCD1, buff))
+            return RES_ERROR;
+        buff += MMCSD_BLOCK_SIZE;
+        count--;
+    }
+    if (mmcStopSequentialWrite(&MMCD1))
+        return RES_ERROR;
+    return RES_OK;
+#elif HAL_USE_SDC
+  case SDC:
+    if (blkGetDriverState(&SDCD1) != BLK_READY)
+      return RES_NOTRDY;
+    if (sdcWrite(&SDCD1, sector, buff, count))
+      return RES_ERROR;
+    return RES_OK;
+#endif
+#if HAL_USBH_USE_MSD
+  case MSDLUN0:
+	/* It is initialized externally, just reads the status.*/
+	if (blkGetDriverState(&MSBLKD[0]) != BLK_READY)
+		return RES_NOTRDY;
+	if (usbhmsdLUNWrite(&MSBLKD[0], sector, buff, count))
+		return RES_ERROR;
+	return RES_OK;
+#endif
+  }
+  return RES_PARERR;
+}
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Miscellaneous Functions                                               */
+
+DRESULT disk_ioctl (
+    BYTE pdrv,        /* Physical drive number (0..) */
+    BYTE cmd,         /* Control code */
+    void *buff        /* Buffer to send/receive control data */
+)
+{
+  switch (pdrv) {
+#if HAL_USE_MMC_SPI
+  case MMC:
+    switch (cmd) {
+    case CTRL_SYNC:
+        return RES_OK;
+#if _MAX_SS > _MIN_SS
+    case GET_SECTOR_SIZE:
+        *((WORD *)buff) = MMCSD_BLOCK_SIZE;
+        return RES_OK;
+#endif
+#if _USE_TRIM
+    case CTRL_TRIM:
+        mmcErase(&MMCD1, *((DWORD *)buff), *((DWORD *)buff + 1));
+        return RES_OK;
+#endif
+    default:
+        return RES_PARERR;
+    }
+#elif HAL_USE_SDC
+  case SDC:
+    switch (cmd) {
+    case CTRL_SYNC:
+        return RES_OK;
+    case GET_SECTOR_COUNT:
+        *((DWORD *)buff) = mmcsdGetCardCapacity(&SDCD1);
+        return RES_OK;
+#if _MAX_SS > _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 _USE_TRIM
+    case CTRL_TRIM:
+        sdcErase(&SDCD1, *((DWORD *)buff), *((DWORD *)buff + 1));
+        return RES_OK;
+#endif
+    default:
+        return RES_PARERR;
+    }
+#endif
+#if HAL_USBH_USE_MSD
+    case MSDLUN0:
+      switch (cmd) {
+      case CTRL_SYNC:
+          return RES_OK;
+      case GET_SECTOR_COUNT:
+          *((DWORD *)buff) = MSBLKD[0].info.blk_num;
+          return RES_OK;
+#if _MAX_SS > _MIN_SS
+      case GET_SECTOR_SIZE:
+          *((WORD *)buff) = MSBLKD[0].info.blk_size;
+          return RES_OK;
+#endif
+#if _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, &timespec);
+    return rtcConvertDateTimeToFAT(&timespec);
+#else
+    return ((uint32_t)0 | (1 << 16)) | (1 << 21); /* wrong but valid time */
+#endif
+}