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mirror of https://github.com/trezor/trezor-firmware.git synced 2024-12-24 15:28:10 +00:00
trezor-firmware/core/embed/firmware/mphalport.c
2019-06-17 20:28:29 +02:00

42 lines
1.3 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 "common.h"
#include "py/mphal.h"
#include "usb.h"
static int vcp_iface_num = -1;
int mp_hal_stdin_rx_chr(void) {
ensure(sectrue * (vcp_iface_num >= 0), "vcp stdio is not configured");
uint8_t c = 0;
int r = usb_vcp_read_blocking(vcp_iface_num, &c, 1, -1);
(void)r;
return c;
}
void mp_hal_stdout_tx_strn(const char *str, size_t len) {
if (vcp_iface_num >= 0) {
int r = usb_vcp_write_blocking(vcp_iface_num, (const uint8_t *)str, len, 0);
(void)r;
}
}
void mp_hal_set_vcp_iface(int iface_num) { vcp_iface_num = iface_num; }