mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-12-23 23:08:14 +00:00
103 lines
2.4 KiB
C
103 lines
2.4 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 "prodtest_common.h"
|
|
#include "mini_printf.h"
|
|
#include "usb.h"
|
|
|
|
void vcp_puts(const char *s, size_t len) {
|
|
int r = usb_vcp_write_blocking(VCP_IFACE, (const uint8_t *)s, len, -1);
|
|
(void)r;
|
|
}
|
|
|
|
void vcp_print(const char *fmt, ...) {
|
|
static char buf[128];
|
|
va_list va;
|
|
va_start(va, fmt);
|
|
int r = mini_vsnprintf(buf, sizeof(buf), fmt, va);
|
|
va_end(va);
|
|
vcp_puts(buf, r);
|
|
}
|
|
|
|
void vcp_println(const char *fmt, ...) {
|
|
static char buf[128];
|
|
va_list va;
|
|
va_start(va, fmt);
|
|
int r = mini_vsnprintf(buf, sizeof(buf), fmt, va);
|
|
va_end(va);
|
|
vcp_puts(buf, r);
|
|
vcp_puts("\r\n", 2);
|
|
}
|
|
|
|
void vcp_println_hex(uint8_t *data, uint16_t len) {
|
|
for (int i = 0; i < len; i++) {
|
|
vcp_print("%02X", data[i]);
|
|
}
|
|
vcp_puts("\r\n", 2);
|
|
}
|
|
|
|
static uint16_t get_byte_from_hex(const char **hex) {
|
|
uint8_t result = 0;
|
|
|
|
// Skip whitespace.
|
|
while (**hex == ' ') {
|
|
*hex += 1;
|
|
}
|
|
|
|
for (int i = 0; i < 2; i++) {
|
|
result <<= 4;
|
|
char c = **hex;
|
|
if (c >= '0' && c <= '9') {
|
|
result |= c - '0';
|
|
} else if (c >= 'A' && c <= 'F') {
|
|
result |= c - 'A' + 10;
|
|
} else if (c >= 'a' && c <= 'f') {
|
|
result |= c - 'a' + 10;
|
|
} else if (c == '\0') {
|
|
return 0x100;
|
|
} else {
|
|
return 0xFFFF;
|
|
}
|
|
*hex += 1;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
int get_from_hex(uint8_t *buf, uint16_t buf_len, const char *hex) {
|
|
int len = 0;
|
|
uint16_t b = get_byte_from_hex(&hex);
|
|
for (len = 0; len < buf_len && b <= 0xff; ++len) {
|
|
buf[len] = b;
|
|
b = get_byte_from_hex(&hex);
|
|
}
|
|
|
|
if (b == 0x100) {
|
|
// Success.
|
|
return len;
|
|
}
|
|
|
|
if (b > 0xff) {
|
|
// Non-hexadecimal character.
|
|
return -1;
|
|
}
|
|
|
|
// Buffer too small.
|
|
return -2;
|
|
}
|