/* * This file is part of the Trezor project, https://trezor.io/ * * Copyright (C) 2014 Pavol Rusnak <stick@satoshilabs.com> * * This library is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This library 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 Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this library. If not, see <http://www.gnu.org/licenses/>. */ #include "util.h" inline void delay(uint32_t wait) { while (--wait > 0) __asm__("nop"); } static const char *hexdigits = "0123456789ABCDEF"; void uint32hex(uint32_t num, char *str) { for (uint32_t i = 0; i < 8; i++) { str[i] = hexdigits[(num >> (28 - i * 4)) & 0xF]; } } // converts data to hexa void data2hex(const void *data, uint32_t len, char *str) { const uint8_t *cdata = (uint8_t *)data; for (uint32_t i = 0; i < len; i++) { str[i * 2] = hexdigits[(cdata[i] >> 4) & 0xF]; str[i * 2 + 1] = hexdigits[cdata[i] & 0xF]; } str[len * 2] = 0; } uint32_t readprotobufint(const uint8_t **ptr) { uint32_t result = (**ptr & 0x7F); if (**ptr & 0x80) { (*ptr)++; result += (**ptr & 0x7F) * 128; if (**ptr & 0x80) { (*ptr)++; result += (**ptr & 0x7F) * 128 * 128; if (**ptr & 0x80) { (*ptr)++; result += (**ptr & 0x7F) * 128 * 128 * 128; if (**ptr & 0x80) { (*ptr)++; result += (**ptr & 0x7F) * 128 * 128 * 128 * 128; } } } } (*ptr)++; return result; }