mirror of
https://github.com/trezor/trezor-firmware.git
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59 lines
1.8 KiB
C
59 lines
1.8 KiB
C
/*
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* This file is part of the TREZOR project.
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*
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* Copyright (C) 2014 Pavol Rusnak <stick@satoshilabs.com>
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*
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* This library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser 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 library 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 Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __UTIL_H_
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#define __UTIL_H_
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#include <stdint.h>
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#include <libopencm3/cm3/scb.h>
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#include <libopencm3/cm3/vector.h>
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void delay(uint32_t wait);
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// converts uint32 to hexa (8 digits)
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void uint32hex(uint32_t num, char *str);
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// converts data to hexa
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void data2hex(const void *data, uint32_t len, char *str);
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// read protobuf integer and advance pointer
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uint32_t readprotobufint(uint8_t **ptr);
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// halt execution (or do an endless loop)
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void __attribute__((noreturn)) system_halt(void);
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// reset system
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void __attribute__((noreturn)) system_reset(void);
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static inline void __attribute__((noreturn)) load_vector_table(const vector_table_t *vector_table) {
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// Relocate vector table
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SCB_VTOR = (uint32_t) vector_table;
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// Set stack pointer
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__asm__ volatile("msr msp, %0" :: "r" (vector_table->initial_sp_value));
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// Jump to address
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vector_table->reset();
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// Prevent compiler from generating stack protector code (which causes CPU fault because the stack is moved)
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for (;;);
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}
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#endif
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