68 lines
2.2 KiB
C
68 lines
2.2 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2016-2017 Scott Shawcroft for Adafruit Industries
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef MICROPY_INCLUDED_SUPERVISOR_PORT_H
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#define MICROPY_INCLUDED_SUPERVISOR_PORT_H
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#include "py/mpconfig.h"
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#include "supervisor/shared/safe_mode.h"
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// Provided by the linker;
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extern uint32_t _ezero;
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// This file defines core methods that must be implemented by a port.
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extern uint32_t _estack;
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// Stored at the end of the bss section (which includes the heap).
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extern uint32_t _ebss;
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safe_mode_t port_init(void);
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// Reset the microcontroller completely.
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void reset_cpu(void);
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// Reset the microcontroller state.
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void reset_port(void);
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// Reset the rest of the board.
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void reset_board(void);
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// Reset to the bootloader
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void reset_to_bootloader(void);
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// Get stack limit address
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uint32_t *port_stack_get_limit(void);
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// Get stack top address
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uint32_t *port_stack_get_top(void);
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// Save and retrieve a word from memory that is preserved over reset. Used for safe mode.
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void port_set_saved_word(uint32_t);
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uint32_t port_get_saved_word(void);
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#endif // MICROPY_INCLUDED_SUPERVISOR_PORT_H
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