260 lines
9.4 KiB
C
260 lines
9.4 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2019 NXP
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "modzephyr.h"
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#include "py/runtime.h"
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#if MICROPY_VFS
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#include "extmod/vfs.h"
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#endif
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#ifdef CONFIG_DISK_ACCESS
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#include <storage/disk_access.h>
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#endif
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#ifdef CONFIG_FLASH_MAP
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#include <storage/flash_map.h>
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#endif
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#ifdef CONFIG_DISK_ACCESS
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typedef struct _zephyr_disk_access_obj_t {
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mp_obj_base_t base;
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const char *pdrv;
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int block_size;
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int block_count;
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} zephyr_disk_access_obj_t;
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STATIC void zephyr_disk_access_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
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zephyr_disk_access_obj_t *self = self_in;
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mp_printf(print, "DiskAccess(%s)", self->pdrv);
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}
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STATIC mp_obj_t zephyr_disk_access_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
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mp_arg_check_num(n_args, n_kw, 1, 1, false);
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zephyr_disk_access_obj_t *self = mp_obj_malloc(zephyr_disk_access_obj_t, type);
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self->pdrv = mp_obj_str_get_str(args[0]);
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if (disk_access_init(self->pdrv) != 0) {
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mp_raise_ValueError(MP_ERROR_TEXT("disk not found"));
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}
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if (disk_access_ioctl(self->pdrv, DISK_IOCTL_GET_SECTOR_SIZE, &self->block_size)) {
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mp_raise_ValueError(MP_ERROR_TEXT("unable to get sector size"));
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}
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if (disk_access_ioctl(self->pdrv, DISK_IOCTL_GET_SECTOR_COUNT, &self->block_count)) {
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mp_raise_ValueError(MP_ERROR_TEXT("unable to get block count"));
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}
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return MP_OBJ_FROM_PTR(self);
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}
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STATIC mp_obj_t zephyr_disk_access_readblocks(mp_obj_t self_in, mp_obj_t block_num, mp_obj_t buf) {
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zephyr_disk_access_obj_t *self = self_in;
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mp_buffer_info_t bufinfo;
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int ret;
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mp_get_buffer_raise(buf, &bufinfo, MP_BUFFER_WRITE);
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ret = disk_access_read(self->pdrv, bufinfo.buf, mp_obj_get_int(block_num), bufinfo.len / self->block_size);
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return MP_OBJ_NEW_SMALL_INT(ret);
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_3(zephyr_disk_access_readblocks_obj, zephyr_disk_access_readblocks);
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STATIC mp_obj_t zephyr_disk_access_writeblocks(mp_obj_t self_in, mp_obj_t block_num, mp_obj_t buf) {
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zephyr_disk_access_obj_t *self = self_in;
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mp_buffer_info_t bufinfo;
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int ret;
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mp_get_buffer_raise(buf, &bufinfo, MP_BUFFER_READ);
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ret = disk_access_write(self->pdrv, bufinfo.buf, mp_obj_get_int(block_num), bufinfo.len / self->block_size);
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return MP_OBJ_NEW_SMALL_INT(ret);
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_3(zephyr_disk_access_writeblocks_obj, zephyr_disk_access_writeblocks);
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STATIC mp_obj_t zephyr_disk_access_ioctl(mp_obj_t self_in, mp_obj_t cmd_in, mp_obj_t arg_in) {
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zephyr_disk_access_obj_t *self = self_in;
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mp_int_t cmd = mp_obj_get_int(cmd_in);
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int buf;
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int ret;
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switch (cmd) {
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case MP_BLOCKDEV_IOCTL_INIT:
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case MP_BLOCKDEV_IOCTL_DEINIT:
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return MP_OBJ_NEW_SMALL_INT(0);
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case MP_BLOCKDEV_IOCTL_SYNC:
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ret = disk_access_ioctl(self->pdrv, DISK_IOCTL_CTRL_SYNC, &buf);
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return MP_OBJ_NEW_SMALL_INT(ret);
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case MP_BLOCKDEV_IOCTL_BLOCK_COUNT:
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return MP_OBJ_NEW_SMALL_INT(self->block_count);
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case MP_BLOCKDEV_IOCTL_BLOCK_SIZE:
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return MP_OBJ_NEW_SMALL_INT(self->block_size);
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default:
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return MP_OBJ_NEW_SMALL_INT(-1);
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}
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_3(zephyr_disk_access_ioctl_obj, zephyr_disk_access_ioctl);
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STATIC const mp_rom_map_elem_t zephyr_disk_access_locals_dict_table[] = {
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{ MP_ROM_QSTR(MP_QSTR_readblocks), MP_ROM_PTR(&zephyr_disk_access_readblocks_obj) },
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{ MP_ROM_QSTR(MP_QSTR_writeblocks), MP_ROM_PTR(&zephyr_disk_access_writeblocks_obj) },
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{ MP_ROM_QSTR(MP_QSTR_ioctl), MP_ROM_PTR(&zephyr_disk_access_ioctl_obj) },
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};
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STATIC MP_DEFINE_CONST_DICT(zephyr_disk_access_locals_dict, zephyr_disk_access_locals_dict_table);
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const mp_obj_type_t zephyr_disk_access_type = {
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{ &mp_type_type },
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.name = MP_QSTR_DiskAccess,
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.print = zephyr_disk_access_print,
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.make_new = zephyr_disk_access_make_new,
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.locals_dict = (mp_obj_dict_t *)&zephyr_disk_access_locals_dict,
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};
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#endif // CONFIG_DISK_ACCESS
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#ifdef CONFIG_FLASH_MAP
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const mp_obj_type_t zephyr_flash_area_type;
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typedef struct _zephyr_flash_area_obj_t {
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mp_obj_base_t base;
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const struct flash_area *area;
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int block_size;
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int block_count;
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uint8_t id;
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} zephyr_flash_area_obj_t;
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STATIC void zephyr_flash_area_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
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zephyr_flash_area_obj_t *self = self_in;
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mp_printf(print, "FlashArea(%d)", self->id);
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}
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STATIC mp_obj_t zephyr_flash_area_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
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mp_arg_check_num(n_args, n_kw, 2, 2, false);
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zephyr_flash_area_obj_t *self = mp_obj_malloc(zephyr_flash_area_obj_t, type);
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self->id = mp_obj_get_int(args[0]);
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self->block_size = mp_obj_get_int(args[1]);
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if (self->block_size <= 0) {
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mp_raise_ValueError(MP_ERROR_TEXT("invalid block size"));
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}
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if (flash_area_open(self->id, &self->area) != 0) {
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mp_raise_ValueError(MP_ERROR_TEXT("unable to open flash area"));
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}
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self->block_count = self->area->fa_size / self->block_size;
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return MP_OBJ_FROM_PTR(self);
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}
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STATIC mp_obj_t zephyr_flash_area_readblocks(size_t n_args, const mp_obj_t *args) {
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zephyr_flash_area_obj_t *self = MP_OBJ_TO_PTR(args[0]);
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uint32_t block_num = mp_obj_get_int(args[1]);
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off_t offset = block_num * self->block_size;
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mp_buffer_info_t bufinfo;
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int ret;
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if (n_args >= 4) {
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offset += mp_obj_get_int(args[3]);
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}
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mp_get_buffer_raise(args[2], &bufinfo, MP_BUFFER_WRITE);
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ret = flash_area_read(self->area, offset, bufinfo.buf, bufinfo.len);
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return MP_OBJ_NEW_SMALL_INT(ret);
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(zephyr_flash_area_readblocks_obj, 3, 4, zephyr_flash_area_readblocks);
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STATIC mp_obj_t zephyr_flash_area_writeblocks(size_t n_args, const mp_obj_t *args) {
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zephyr_flash_area_obj_t *self = MP_OBJ_TO_PTR(args[0]);
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uint32_t block_num = mp_obj_get_int(args[1]);
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off_t offset = block_num * self->block_size;
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mp_buffer_info_t bufinfo;
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int ret;
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if (n_args == 3) {
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ret = flash_area_erase(self->area, offset, self->block_size);
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if (ret) {
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return MP_OBJ_NEW_SMALL_INT(ret);
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}
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} else {
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offset += mp_obj_get_int(args[3]);
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}
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mp_get_buffer_raise(args[2], &bufinfo, MP_BUFFER_READ);
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ret = flash_area_write(self->area, offset, bufinfo.buf, bufinfo.len);
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return MP_OBJ_NEW_SMALL_INT(ret);
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(zephyr_flash_area_writeblocks_obj, 3, 4, zephyr_flash_area_writeblocks);
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STATIC mp_obj_t zephyr_flash_area_ioctl(mp_obj_t self_in, mp_obj_t cmd_in, mp_obj_t arg_in) {
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zephyr_flash_area_obj_t *self = self_in;
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mp_int_t cmd = mp_obj_get_int(cmd_in);
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mp_int_t block_num = mp_obj_get_int(arg_in);
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int ret;
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switch (cmd) {
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case MP_BLOCKDEV_IOCTL_INIT:
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case MP_BLOCKDEV_IOCTL_DEINIT:
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case MP_BLOCKDEV_IOCTL_SYNC:
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return MP_OBJ_NEW_SMALL_INT(0);
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case MP_BLOCKDEV_IOCTL_BLOCK_COUNT:
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return MP_OBJ_NEW_SMALL_INT(self->block_count);
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case MP_BLOCKDEV_IOCTL_BLOCK_SIZE:
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return MP_OBJ_NEW_SMALL_INT(self->block_size);
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case MP_BLOCKDEV_IOCTL_BLOCK_ERASE:
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ret = flash_area_erase(self->area, block_num * self->block_size, self->block_size);
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return MP_OBJ_NEW_SMALL_INT(ret);
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default:
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return MP_OBJ_NEW_SMALL_INT(-1);
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}
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_3(zephyr_flash_area_ioctl_obj, zephyr_flash_area_ioctl);
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STATIC const mp_rom_map_elem_t zephyr_flash_area_locals_dict_table[] = {
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{ MP_ROM_QSTR(MP_QSTR_readblocks), MP_ROM_PTR(&zephyr_flash_area_readblocks_obj) },
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{ MP_ROM_QSTR(MP_QSTR_writeblocks), MP_ROM_PTR(&zephyr_flash_area_writeblocks_obj) },
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{ MP_ROM_QSTR(MP_QSTR_ioctl), MP_ROM_PTR(&zephyr_flash_area_ioctl_obj) },
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#if FLASH_AREA_LABEL_EXISTS(storage)
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{ MP_ROM_QSTR(MP_QSTR_STORAGE), MP_ROM_INT(FLASH_AREA_ID(storage)) },
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#endif
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};
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STATIC MP_DEFINE_CONST_DICT(zephyr_flash_area_locals_dict, zephyr_flash_area_locals_dict_table);
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const mp_obj_type_t zephyr_flash_area_type = {
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{ &mp_type_type },
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.name = MP_QSTR_FlashArea,
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.print = zephyr_flash_area_print,
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.make_new = zephyr_flash_area_make_new,
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.locals_dict = (mp_obj_dict_t *)&zephyr_flash_area_locals_dict,
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};
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#endif // CONFIG_FLASH_MAP
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