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137 lines
5.1 KiB
137 lines
5.1 KiB
/*
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* This file is part of the Trezor project, https://trezor.io/
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*
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* Copyright (c) SatoshiLabs
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "embed/extmod/trezorobj.h"
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#include "py/mperrno.h"
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#include "sdcard.h"
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/// package: trezorio.sdcard
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/// BLOCK_SIZE: int # size of SD card block
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/// def is_present() -> bool:
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/// """
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/// Returns True if SD card is detected, False otherwise.
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/// """
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STATIC mp_obj_t mod_trezorio_sdcard_is_present() {
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return mp_obj_new_bool(sdcard_is_present());
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_0(mod_trezorio_sdcard_is_present_obj,
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mod_trezorio_sdcard_is_present);
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/// def power_on() -> None:
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/// """
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/// Power on the SD card interface.
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/// Raises OSError if the SD card cannot be powered on, e.g., when there
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/// is no SD card inserted.
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/// """
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STATIC mp_obj_t mod_trezorio_sdcard_power_on() {
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if (sectrue != sdcard_power_on()) {
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mp_raise_OSError(MP_EIO);
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}
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_0(mod_trezorio_sdcard_power_on_obj,
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mod_trezorio_sdcard_power_on);
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/// def power_off() -> None:
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/// """
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/// Power off the SD card interface.
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/// """
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STATIC mp_obj_t mod_trezorio_sdcard_power_off() {
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/* XXX should this call happen inside sdcard_power_off()? */
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_fatfs_unmount_instance();
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sdcard_power_off();
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_0(mod_trezorio_sdcard_power_off_obj,
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mod_trezorio_sdcard_power_off);
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/// def capacity() -> int:
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/// """
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/// Returns capacity of the SD card in bytes, or zero if not present.
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/// """
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STATIC mp_obj_t mod_trezorio_sdcard_capacity() {
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return mp_obj_new_int_from_ull(sdcard_get_capacity_in_bytes());
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_0(mod_trezorio_sdcard_capacity_obj,
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mod_trezorio_sdcard_capacity);
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/// def read(block_num: int, buf: bytearray) -> None:
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/// """
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/// Reads blocks starting with block_num from the SD card into buf.
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/// Number of bytes read is length of buf rounded down to multiply of
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/// SDCARD_BLOCK_SIZE. Returns True if in case of success, False otherwise.
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/// """
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STATIC mp_obj_t mod_trezorio_sdcard_read(mp_obj_t block_num, mp_obj_t buf) {
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uint32_t block = trezor_obj_get_uint(block_num);
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mp_buffer_info_t bufinfo = {0};
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mp_get_buffer_raise(buf, &bufinfo, MP_BUFFER_WRITE);
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if (sectrue !=
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sdcard_read_blocks(bufinfo.buf, block, bufinfo.len / SDCARD_BLOCK_SIZE)) {
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mp_raise_OSError(MP_EIO);
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}
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_2(mod_trezorio_sdcard_read_obj,
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mod_trezorio_sdcard_read);
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/// def write(block_num: int, buf: bytes) -> None:
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/// """
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/// Writes blocks starting with block_num from buf to the SD card.
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/// Number of bytes written is length of buf rounded down to multiply of
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/// SDCARD_BLOCK_SIZE. Returns True if in case of success, False otherwise.
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/// """
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STATIC mp_obj_t mod_trezorio_sdcard_write(mp_obj_t block_num, mp_obj_t buf) {
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uint32_t block = trezor_obj_get_uint(block_num);
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mp_buffer_info_t bufinfo = {0};
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mp_get_buffer_raise(buf, &bufinfo, MP_BUFFER_READ);
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if (sectrue != sdcard_write_blocks(bufinfo.buf, block,
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bufinfo.len / SDCARD_BLOCK_SIZE)) {
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mp_raise_OSError(MP_EIO);
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}
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_2(mod_trezorio_sdcard_write_obj,
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mod_trezorio_sdcard_write);
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STATIC const mp_rom_map_elem_t mod_trezorio_sdcard_globals_table[] = {
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{MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_sdcard)},
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{MP_ROM_QSTR(MP_QSTR_is_present),
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MP_ROM_PTR(&mod_trezorio_sdcard_is_present_obj)},
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{MP_ROM_QSTR(MP_QSTR_power_on),
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MP_ROM_PTR(&mod_trezorio_sdcard_power_on_obj)},
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{MP_ROM_QSTR(MP_QSTR_power_off),
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MP_ROM_PTR(&mod_trezorio_sdcard_power_off_obj)},
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{MP_ROM_QSTR(MP_QSTR_capacity),
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MP_ROM_PTR(&mod_trezorio_sdcard_capacity_obj)},
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{MP_ROM_QSTR(MP_QSTR_BLOCK_SIZE), MP_ROM_INT(SDCARD_BLOCK_SIZE)},
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{MP_ROM_QSTR(MP_QSTR_read), MP_ROM_PTR(&mod_trezorio_sdcard_read_obj)},
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{MP_ROM_QSTR(MP_QSTR_write), MP_ROM_PTR(&mod_trezorio_sdcard_write_obj)},
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};
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STATIC MP_DEFINE_CONST_DICT(mod_trezorio_sdcard_globals,
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mod_trezorio_sdcard_globals_table);
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STATIC const mp_obj_module_t mod_trezorio_sdcard_module = {
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.base = {&mp_type_module},
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.globals = (mp_obj_dict_t *)&mod_trezorio_sdcard_globals,
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};
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