support for file based and sd partition based emusd

bootloader/libs/fatfs/diskio.c

@@ -7,9 +7,9 @@
 /* storage control modules to the FatFs module with a defined API.       */
 /*-----------------------------------------------------------------------*/
 
+#include "../../storage/emusd.h"
 #include <storage/sd.h>
 #include <storage/sdmmc.h>
-#include <string.h>
 
 #include <bdk.h>
 
@@ -28,6 +28,8 @@ static bool ensure_partition(BYTE pdrv){
 	case DRIVE_EMMC:
 		part = EMMC_GPP;
 		break;
+	case DRIVE_EMUSD:
+		return true;
 	default:
 		return false;
 	}
@@ -86,6 +88,9 @@ DRESULT disk_read (
 			storage = &emmc_storage;
 			actual_sector = sector + (0x100000 / 512);
 			break;
+		case DRIVE_EMUSD:
+			return emusd_storage_read(sector, count, buff) ? RES_OK : RES_ERROR;
+			break;
 		default:
 			return RES_ERROR;
 
@@ -122,6 +127,8 @@ DRESULT disk_write (
 			storage = &emmc_storage;
 			actual_sector = sector + (0x100000 / 512);
 			break;
+		case DRIVE_EMUSD:
+			return emusd_storage_write(sector, count, (void*)buff) ? RES_OK : RES_ERROR;
 		default:
 			return RES_ERROR;
 

bootloader/libs/fatfs/ffconf.h

@@ -179,12 +179,12 @@
 / Drive/Volume Configurations
 /---------------------------------------------------------------------------*/
 
-#define FF_VOLUMES		4
+#define FF_VOLUMES		5
 /* Number of volumes (logical drives) to be used. (1-10) */
 
 
 #define FF_STR_VOLUME_ID	1
-#define FF_VOLUME_STRS		"sd", "boot1", "boot1_1mb", "emmc"
+#define FF_VOLUME_STRS		"sd", "boot1", "boot1_1mb", "emmc", "emusd"
 /* FF_STR_VOLUME_ID switches support for volume ID in arbitrary strings.
 /  When FF_STR_VOLUME_ID is set to 1 or 2, arbitrary strings can be used as drive
 /  number in the path name. FF_VOLUME_STRS defines the volume ID strings for each
@@ -306,6 +306,7 @@ typedef enum {
 	DRIVE_BOOT1     = 1,
 	DRIVE_BOOT1_1MB = 2,
 	DRIVE_EMMC      = 3,
+	DRIVE_EMUSD     = 4,
 } DDRIVE;
 
 /*--- End of configuration options ---*/