Fix flash size, add filesystem disable flag

2 files changed, 76 insertions, 2 deletions

diff --git a/supervisor/stub/internal_flash.c b/supervisor/stub/internal_flash.c
new file mode 100644
index 000000000..334281e77
--- /dev/null
+++ b/supervisor/stub/internal_flash.c
@@ -0,0 +1,70 @@
+/*f
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2013, 2014 Damien P. George
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#include "supervisor/internal_flash.h"
+
+#include <stdint.h>
+#include <string.h>
+
+#include "extmod/vfs.h"
+#include "extmod/vfs_fat.h"
+#include "py/mphal.h"
+#include "py/obj.h"
+#include "py/runtime.h"
+#include "lib/oofatfs/ff.h"
+
+void supervisor_flash_init(void) {
+}
+
+uint32_t supervisor_flash_get_block_size(void) {
+    return 0;
+}
+
+uint32_t supervisor_flash_get_block_count(void) {
+    return 0;
+}
+
+void supervisor_flash_flush(void) {
+}
+
+static int32_t convert_block_to_flash_addr(uint32_t block) {
+    return -1;
+}
+
+mp_uint_t supervisor_flash_read_blocks(uint8_t *dest, uint32_t block, uint32_t num_blocks) {
+    return 0; // success
+}
+
+bool supervisor_flash_write_block(const uint8_t *src, uint32_t block) {
+    return true;
+}
+
+mp_uint_t supervisor_flash_write_blocks(const uint8_t *src, uint32_t block_num, uint32_t num_blocks) {
+    return 0; // success
+}
+
+void supervisor_flash_release_cache(void) {
+}
+
diff --git a/supervisor/supervisor.mk b/supervisor/supervisor.mk
index 1022dd2a3..4870f15d8 100644
--- a/supervisor/supervisor.mk
+++ b/supervisor/supervisor.mk
@@ -13,7 +13,7 @@ SRC_SUPERVISOR = \
 	supervisor/shared/translate.c
 
 ifndef $(NO_USB)
-NO_USB = $(wildcard supervisor/usb.c)
+	NO_USB = $(wildcard supervisor/usb.c)
 endif
 
 ifneq ($(INTERNAL_FLASH_FILESYSTEM),)
@@ -44,7 +44,11 @@ ifdef EXTERNAL_FLASH_DEVICES
 		SRC_SUPERVISOR += supervisor/qspi_flash.c supervisor/shared/external_flash/qspi_flash.c
 	endif
 else
-	SRC_SUPERVISOR += supervisor/internal_flash.c
+	ifneq ($(DISABLE_FILESYSTEM),1)
+		SRC_SUPERVISOR += supervisor/internal_flash.c
+	else 
+		SRC_SUPERVISOR += supervisor/stub/internal_flash.c
+	endif
 endif
 
 ifeq ($(USB),FALSE)