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mirror of https://github.com/trezor/trezor-firmware.git synced 2024-12-24 07:18:09 +00:00
trezor-firmware/embed/extmod/modtrezorio/modtrezorio-sdcard.h

121 lines
4.8 KiB
C

/*
* This file is part of the TREZOR project, https://trezor.io/
*
* Copyright (c) SatoshiLabs
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "sdcard.h"
#include "embed/extmod/trezorobj.h"
/// class SDCard:
/// '''
/// '''
typedef struct _mp_obj_SDCard_t {
mp_obj_base_t base;
} mp_obj_SDCard_t;
/// def __init__(self) -> None:
/// '''
/// '''
STATIC mp_obj_t mod_trezorio_SDCard_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
mp_arg_check_num(n_args, n_kw, 0, 0, false);
mp_obj_SDCard_t *o = m_new_obj(mp_obj_SDCard_t);
o->base.type = type;
#if defined TREZOR_MODEL_EMU
sdcard_init();
#endif
return MP_OBJ_FROM_PTR(o);
}
/// def present(self) -> bool:
/// '''
/// Returns True if SD card is detected, False otherwise.
/// '''
STATIC mp_obj_t mod_trezorio_SDCard_present(mp_obj_t self) {
return mp_obj_new_bool(sdcard_is_present());
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(mod_trezorio_SDCard_present_obj, mod_trezorio_SDCard_present);
/// def power(self, state: bool) -> bool:
/// '''
/// Power on or power off the SD card interface.
/// Returns True if in case of success, False otherwise.
/// '''
STATIC mp_obj_t mod_trezorio_SDCard_power(mp_obj_t self, mp_obj_t state) {
if (mp_obj_is_true(state)) {
return mp_obj_new_bool(sdcard_power_on());
} else {
sdcard_power_off();
return mp_const_true;
}
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(mod_trezorio_SDCard_power_obj, mod_trezorio_SDCard_power);
/// def capacity(self) -> int:
/// '''
/// Returns capacity of the SD card in bytes, or zero if not present.
/// '''
STATIC mp_obj_t mod_trezorio_SDCard_capacity(mp_obj_t self) {
return mp_obj_new_int_from_ull(sdcard_get_capacity_in_bytes());
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(mod_trezorio_SDCard_capacity_obj, mod_trezorio_SDCard_capacity);
/// def read(self, block_num: int, buf: bytearray) -> bool:
/// '''
/// Reads blocks starting with block_num from the SD card into buf.
/// Number of bytes read is length of buf rounded down to multiply of SDCARD_BLOCK_SIZE.
/// Returns True if in case of success, False otherwise.
/// '''
STATIC mp_obj_t mod_trezorio_SDCard_read(mp_obj_t self, mp_obj_t block_num, mp_obj_t buf) {
uint32_t block = trezor_obj_get_uint(block_num);
mp_buffer_info_t bufinfo;
mp_get_buffer_raise(buf, &bufinfo, MP_BUFFER_WRITE);
return mp_obj_new_bool(sdcard_read_blocks(bufinfo.buf, block, bufinfo.len / SDCARD_BLOCK_SIZE));
}
STATIC MP_DEFINE_CONST_FUN_OBJ_3(mod_trezorio_SDCard_read_obj, mod_trezorio_SDCard_read);
/// def write(self, block_num: int, buf: bytes) -> bool:
/// '''
/// Writes blocks starting with block_num from buf to the SD card.
/// Number of bytes written is length of buf rounded down to multiply of SDCARD_BLOCK_SIZE.
/// Returns True if in case of success, False otherwise.
/// '''
STATIC mp_obj_t mod_trezorio_SDCard_write(mp_obj_t self, mp_obj_t block_num, mp_obj_t buf) {
uint32_t block = trezor_obj_get_uint(block_num);
mp_buffer_info_t bufinfo;
mp_get_buffer_raise(buf, &bufinfo, MP_BUFFER_READ);
return mp_obj_new_bool(sdcard_write_blocks(bufinfo.buf, block, bufinfo.len / SDCARD_BLOCK_SIZE));
}
STATIC MP_DEFINE_CONST_FUN_OBJ_3(mod_trezorio_SDCard_write_obj, mod_trezorio_SDCard_write);
STATIC const mp_rom_map_elem_t mod_trezorio_SDCard_locals_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_present), MP_ROM_PTR(&mod_trezorio_SDCard_present_obj) },
{ MP_ROM_QSTR(MP_QSTR_power), MP_ROM_PTR(&mod_trezorio_SDCard_power_obj) },
{ MP_ROM_QSTR(MP_QSTR_capacity), MP_ROM_PTR(&mod_trezorio_SDCard_capacity_obj) },
{ MP_ROM_QSTR(MP_QSTR_block_size), MP_OBJ_NEW_SMALL_INT(SDCARD_BLOCK_SIZE) },
{ MP_ROM_QSTR(MP_QSTR_read), MP_ROM_PTR(&mod_trezorio_SDCard_read_obj) },
{ MP_ROM_QSTR(MP_QSTR_write), MP_ROM_PTR(&mod_trezorio_SDCard_write_obj) },
};
STATIC MP_DEFINE_CONST_DICT(mod_trezorio_SDCard_locals_dict, mod_trezorio_SDCard_locals_dict_table);
STATIC const mp_obj_type_t mod_trezorio_SDCard_type = {
{ &mp_type_type },
.name = MP_QSTR_SDCard,
.make_new = mod_trezorio_SDCard_make_new,
.locals_dict = (void*)&mod_trezorio_SDCard_locals_dict,
};