1 files changed, 109 insertions, 0 deletions
diff --git a/cc3200/mods/pybflash.c b/cc3200/mods/pybflash.c
new file mode 100644
index 0000000000..f5af79dbf6
--- /dev/null
+++ b/cc3200/mods/pybflash.c
@@ -0,0 +1,109 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2013-2017 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 <stdint.h>
+//#include <string.h>
+
+#include "py/runtime.h"
+#include "lib/oofatfs/ff.h"
+#include "lib/oofatfs/diskio.h"
+#include "extmod/vfs_fat.h"
+
+#include "fatfs/src/drivers/sflash_diskio.h"
+#include "mods/pybflash.h"
+
+/******************************************************************************/
+// MicroPython bindings to expose the internal flash as an object with the
+// block protocol.
+
+// there is a singleton Flash object
+STATIC const mp_obj_base_t pyb_flash_obj = {&pyb_flash_type};
+
+STATIC mp_obj_t pyb_flash_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
+    // check arguments
+    mp_arg_check_num(n_args, n_kw, 0, 0, false);
+
+    // return singleton object
+    return (mp_obj_t)&pyb_flash_obj;
+}
+
+STATIC mp_obj_t pyb_flash_readblocks(mp_obj_t self, mp_obj_t block_num, mp_obj_t buf) {
+    mp_buffer_info_t bufinfo;
+    mp_get_buffer_raise(buf, &bufinfo, MP_BUFFER_WRITE);
+    DRESULT res = sflash_disk_read(bufinfo.buf, mp_obj_get_int(block_num), bufinfo.len / SFLASH_SECTOR_SIZE);
+    return MP_OBJ_NEW_SMALL_INT(res != RES_OK); // return of 0 means success
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_3(pyb_flash_readblocks_obj, pyb_flash_readblocks);
+
+STATIC mp_obj_t pyb_flash_writeblocks(mp_obj_t self, mp_obj_t block_num, mp_obj_t buf) {
+    mp_buffer_info_t bufinfo;
+    mp_get_buffer_raise(buf, &bufinfo, MP_BUFFER_READ);
+    DRESULT res = sflash_disk_write(bufinfo.buf, mp_obj_get_int(block_num), bufinfo.len / SFLASH_SECTOR_SIZE);
+    return MP_OBJ_NEW_SMALL_INT(res != RES_OK); // return of 0 means success
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_3(pyb_flash_writeblocks_obj, pyb_flash_writeblocks);
+
+STATIC mp_obj_t pyb_flash_ioctl(mp_obj_t self, mp_obj_t cmd_in, mp_obj_t arg_in) {
+    mp_int_t cmd = mp_obj_get_int(cmd_in);
+    switch (cmd) {
+        case BP_IOCTL_INIT: return MP_OBJ_NEW_SMALL_INT(sflash_disk_init() != RES_OK);
+        case BP_IOCTL_DEINIT: sflash_disk_flush(); return MP_OBJ_NEW_SMALL_INT(0);
+        case BP_IOCTL_SYNC: sflash_disk_flush(); return MP_OBJ_NEW_SMALL_INT(0);
+        case BP_IOCTL_SEC_COUNT: return MP_OBJ_NEW_SMALL_INT(SFLASH_SECTOR_COUNT);
+        case BP_IOCTL_SEC_SIZE: return MP_OBJ_NEW_SMALL_INT(SFLASH_SECTOR_SIZE);
+        default: return mp_const_none;
+    }
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_3(pyb_flash_ioctl_obj, pyb_flash_ioctl);
+
+STATIC const mp_map_elem_t pyb_flash_locals_dict_table[] = {
+    { MP_OBJ_NEW_QSTR(MP_QSTR_readblocks), (mp_obj_t)&pyb_flash_readblocks_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_writeblocks), (mp_obj_t)&pyb_flash_writeblocks_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_ioctl), (mp_obj_t)&pyb_flash_ioctl_obj },
+};
+
+STATIC MP_DEFINE_CONST_DICT(pyb_flash_locals_dict, pyb_flash_locals_dict_table);
+
+const mp_obj_type_t pyb_flash_type = {
+    { &mp_type_type },
+    .name = MP_QSTR_Flash,
+    .make_new = pyb_flash_make_new,
+    .locals_dict = (mp_obj_t)&pyb_flash_locals_dict,
+};
+
+void pyb_flash_init_vfs(fs_user_mount_t *vfs) {
+    vfs->base.type = &mp_fat_vfs_type;
+    vfs->flags |= FSUSER_NATIVE | FSUSER_HAVE_IOCTL;
+    vfs->fatfs.drv = vfs;
+    vfs->readblocks[0] = (mp_obj_t)&pyb_flash_readblocks_obj;
+    vfs->readblocks[1] = (mp_obj_t)&pyb_flash_obj;
+    vfs->readblocks[2] = (mp_obj_t)sflash_disk_read; // native version
+    vfs->writeblocks[0] = (mp_obj_t)&pyb_flash_writeblocks_obj;
+    vfs->writeblocks[1] = (mp_obj_t)&pyb_flash_obj;
+    vfs->writeblocks[2] = (mp_obj_t)sflash_disk_write; // native version
+    vfs->u.ioctl[0] = (mp_obj_t)&pyb_flash_ioctl_obj;
+    vfs->u.ioctl[1] = (mp_obj_t)&pyb_flash_obj;
+}