From 49a98a5015c87315c2ca06fdba547a434f0a6c95 Mon Sep 17 00:00:00 2001
From: Pavol Rusnak <pavol@rusnak.io>
Date: Thu, 20 Jun 2019 19:59:30 +0200
Subject: [PATCH] core/modtrezorio: enable FatFS.mkfs only in emulator

---
 core/embed/extmod/modtrezorio/ffconf.h            | 4 ++++
 core/embed/extmod/modtrezorio/modtrezorio-fatfs.h | 6 ++++++
 2 files changed, 10 insertions(+)

diff --git a/core/embed/extmod/modtrezorio/ffconf.h b/core/embed/extmod/modtrezorio/ffconf.h
index 6a19f48a1..b6fe76215 100644
--- a/core/embed/extmod/modtrezorio/ffconf.h
+++ b/core/embed/extmod/modtrezorio/ffconf.h
@@ -44,7 +44,11 @@
 /  f_findnext(). (0:Disable, 1:Enable 2:Enable with matching altname[] too) */
 
 
+#ifdef TREZOR_EMULATOR
 #define FF_USE_MKFS     1
+#else
+#define FF_USE_MKFS     0
+#endif
 /* This option switches f_mkfs() function. (0:Disable or 1:Enable) */
 
 
diff --git a/core/embed/extmod/modtrezorio/modtrezorio-fatfs.h b/core/embed/extmod/modtrezorio/modtrezorio-fatfs.h
index f1f00c791..cdc3649f7 100644
--- a/core/embed/extmod/modtrezorio/modtrezorio-fatfs.h
+++ b/core/embed/extmod/modtrezorio/modtrezorio-fatfs.h
@@ -460,6 +460,8 @@ STATIC mp_obj_t mod_trezorio_FatFS_unmount(mp_obj_t self) {
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_1(mod_trezorio_FatFS_unmount_obj, mod_trezorio_FatFS_unmount);
 
+#ifdef TREZOR_EMULATOR
+
 /// def mkfs(self) -> None:
 ///     """
 ///     Create a FAT volume
@@ -475,6 +477,8 @@ STATIC mp_obj_t mod_trezorio_FatFS_mkfs(mp_obj_t self) {
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_1(mod_trezorio_FatFS_mkfs_obj, mod_trezorio_FatFS_mkfs);
 
+#endif
+
 STATIC const mp_rom_map_elem_t mod_trezorio_FatFS_locals_dict_table[] = {
     {MP_ROM_QSTR(MP_QSTR_open), MP_ROM_PTR(&mod_trezorio_FatFS_open_obj)},
     {MP_ROM_QSTR(MP_QSTR_listdir), MP_ROM_PTR(&mod_trezorio_FatFS_listdir_obj)},
@@ -484,7 +488,9 @@ STATIC const mp_rom_map_elem_t mod_trezorio_FatFS_locals_dict_table[] = {
     {MP_ROM_QSTR(MP_QSTR_stat), MP_ROM_PTR(&mod_trezorio_FatFS_stat_obj)},
     {MP_ROM_QSTR(MP_QSTR_mount), MP_ROM_PTR(&mod_trezorio_FatFS_mount_obj)},
     {MP_ROM_QSTR(MP_QSTR_unmount), MP_ROM_PTR(&mod_trezorio_FatFS_unmount_obj)},
+#ifdef TREZOR_EMULATOR
     {MP_ROM_QSTR(MP_QSTR_mkfs), MP_ROM_PTR(&mod_trezorio_FatFS_mkfs_obj)},
+#endif
 };
 STATIC MP_DEFINE_CONST_DICT(mod_trezorio_FatFS_locals_dict, mod_trezorio_FatFS_locals_dict_table);