/* * This file is part of the MicroPython project, http://micropython.org/ * * The MIT License (MIT) * * Copyright (c) 2018 Scott Shawcroft for Adafruit Industries * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ // Basic allocations outside them for areas such as the VM heap and stack. // supervisor/shared/memory.c has a basic implementation for a continuous chunk of memory. Add it // to a SRC_ in a Makefile to use it. #ifndef MICROPY_INCLUDED_SUPERVISOR_MEMORY_H #define MICROPY_INCLUDED_SUPERVISOR_MEMORY_H #include #include typedef struct { uint32_t* ptr; uint32_t length; // in bytes } supervisor_allocation; void memory_init(void); void free_memory(supervisor_allocation* allocation); supervisor_allocation* allocate_remaining_memory(void); // Allocate a piece of a given length in bytes. If high_address is true then it should be allocated // at a lower address from the top of the stack. Otherwise, addresses will increase starting after // statically allocated memory. supervisor_allocation* allocate_memory(uint32_t length, bool high_address); static inline uint16_t align32_size(uint16_t size) { if (size % 4 != 0) { return (size & 0xfffc) + 0x4; } return size; } // Called after the heap is freed in case the supervisor wants to save some values. void supervisor_move_memory(void); #endif // MICROPY_INCLUDED_SUPERVISOR_MEMORY_H