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authorClyne Sullivan <clyne@bitgloo.com>2021-01-22 21:43:36 -0500
committerClyne Sullivan <clyne@bitgloo.com>2021-01-22 21:43:36 -0500
commit48026bb824fd2d9cfb00ecd040db6ef3a416bae9 (patch)
treec14713aedfe78ee8b34f2e1252408782e2e2ff5d /ChibiOS_20.3.2/os/various/fatfs_bindings/fatfs_diskio.c
parente080a26651f90c88176140d63a74c93c2f4041a2 (diff)
upload initial port
Diffstat (limited to 'ChibiOS_20.3.2/os/various/fatfs_bindings/fatfs_diskio.c')
-rw-r--r--ChibiOS_20.3.2/os/various/fatfs_bindings/fatfs_diskio.c267
1 files changed, 267 insertions, 0 deletions
diff --git a/ChibiOS_20.3.2/os/various/fatfs_bindings/fatfs_diskio.c b/ChibiOS_20.3.2/os/various/fatfs_bindings/fatfs_diskio.c
new file mode 100644
index 0000000..ef04746
--- /dev/null
+++ b/ChibiOS_20.3.2/os/various/fatfs_bindings/fatfs_diskio.c
@@ -0,0 +1,267 @@
+/*-----------------------------------------------------------------------*/
+/* 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"
+
+#if HAL_USE_MMC_SPI && HAL_USE_SDC
+#error "cannot specify both MMC_SPI and SDC drivers"
+#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;
+#elif HAL_USE_SDC
+extern SDCDriver FATFS_HAL_DEVICE;
+#else
+#error "MMC_SPI or SDC driver must be specified"
+#endif
+
+#if HAL_USE_RTC
+extern RTCDriver RTCD1;
+#endif
+
+/*-----------------------------------------------------------------------*/
+/* Correspondence between physical drive number and physical drive. */
+
+#define MMC 0
+#define SDC 0
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Inidialize a Drive */
+
+DSTATUS disk_initialize (
+ 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(&FATFS_HAL_DEVICE) != BLK_READY)
+ stat |= STA_NOINIT;
+ if (mmcIsWriteProtected(&FATFS_HAL_DEVICE))
+ stat |= STA_PROTECT;
+ return stat;
+#else
+ case SDC:
+ 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
+ }
+ 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(&FATFS_HAL_DEVICE) != BLK_READY)
+ stat |= STA_NOINIT;
+ if (mmcIsWriteProtected(&FATFS_HAL_DEVICE))
+ stat |= STA_PROTECT;
+ return stat;
+#else
+ case SDC:
+ 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
+ }
+ 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(&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;
+#else
+ case SDC:
+ 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
+ }
+ 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 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) {
+ 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;
+#else
+ case SDC:
+ if (blkGetDriverState(&FATFS_HAL_DEVICE) != BLK_READY)
+ return RES_NOTRDY;
+ if (sdcWrite(&FATFS_HAL_DEVICE, 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 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;
+ }
+#else
+ case SDC:
+ 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
+ }
+ 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
+}
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