sept: add secondary skeleton + buildscript

sept/sept-secondary/src/lib/fatfs/diskio.c

@@ -0,0 +1,95 @@
+/*-----------------------------------------------------------------------*/
+/* Low level disk I/O module skeleton for FatFs     (C)ChaN, 2016        */
+/*-----------------------------------------------------------------------*/
+/* If a working storage control module is available, it should be        */
+/* attached to the FatFs via a glue function rather than modifying it.   */
+/* This is an example of glue functions to attach various exsisting      */
+/* storage control modules to the FatFs module with a defined API.       */
+/*-----------------------------------------------------------------------*/
+
+#include <stdbool.h>
+#include <string.h>
+#include "diskio.h"     /* FatFs lower layer API */
+#include "../../fs_utils.h"
+
+/*-----------------------------------------------------------------------*/
+/* Get Drive Status                                                      */
+/*-----------------------------------------------------------------------*/
+
+DSTATUS disk_status (
+    BYTE pdrv       /* Physical drive nmuber to identify the drive */
+)
+{
+    return 0;
+}
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Inidialize a Drive                                                    */
+/*-----------------------------------------------------------------------*/
+
+DSTATUS disk_initialize (
+    BYTE pdrv               /* Physical drive nmuber to identify the drive */
+)
+{
+    return 0;
+}
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Read Sector(s)                                                        */
+/*-----------------------------------------------------------------------*/
+
+DRESULT disk_read (
+    BYTE pdrv,      /* Physical drive nmuber to identify the drive */
+    BYTE *buff,     /* Data buffer to store read data */
+    DWORD sector,   /* Start sector in LBA */
+    UINT count      /* Number of sectors to read */
+)
+{
+    switch (pdrv) {
+        case 0:
+            return sdmmc_device_read(&g_sd_device, sector, count, (void *)buff) ? RES_OK : RES_ERROR;
+        default:
+            return RES_PARERR;
+    }
+}
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Write Sector(s)                                                       */
+/*-----------------------------------------------------------------------*/
+
+DRESULT disk_write (
+    BYTE pdrv,          /* Physical drive nmuber to identify the drive */
+    const BYTE *buff,   /* Data to be written */
+    DWORD sector,       /* Start sector in LBA */
+    UINT count          /* Number of sectors to write */
+)
+{
+    switch (pdrv) {
+        case 0:
+            return sdmmc_device_write(&g_sd_device, sector, count, (void *)buff) ? RES_OK : RES_ERROR;
+        default:
+            return RES_PARERR;
+    }
+}
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Miscellaneous Functions                                               */
+/*-----------------------------------------------------------------------*/
+
+DRESULT disk_ioctl (
+    BYTE pdrv,      /* Physical drive nmuber (0..) */
+    BYTE cmd,       /* Control code */
+    void *buff      /* Buffer to send/receive control data */
+)
+{
+    return RES_OK;
+}
+