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/*
* 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;
}
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