82 lines
2.4 KiB
C
82 lines
2.4 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) 2022 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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#include "supervisor/port.h"
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#include <string.h>
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#include "py/runtime.h"
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#include "lib/tlsf/tlsf.h"
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static tlsf_t heap;
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MP_WEAK void port_wake_main_task(void) {
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}
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MP_WEAK void port_wake_main_task_from_isr(void) {
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}
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MP_WEAK void port_yield(void) {
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}
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MP_WEAK void port_boot_info(void) {
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}
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MP_WEAK void port_heap_init(void) {
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uint32_t *heap_bottom = port_heap_get_bottom();
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uint32_t *heap_top = port_heap_get_top();
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size_t size = (heap_top - heap_bottom) * sizeof(uint32_t);
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heap = tlsf_create_with_pool(heap_bottom, size, size);
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}
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MP_WEAK void *port_malloc(size_t size, bool dma_capable) {
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void *block = tlsf_malloc(heap, size);
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return block;
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}
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MP_WEAK void port_free(void *ptr) {
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tlsf_free(heap, ptr);
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}
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MP_WEAK void port_realloc(void *ptr, size_t size) {
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tlsf_realloc(heap, ptr, size);
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}
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static void max_size_walker(void *ptr, size_t size, int used, void *user) {
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size_t *max_size = (size_t *)user;
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if (!used && *max_size < size) {
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*max_size = size;
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}
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}
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MP_WEAK size_t port_heap_get_largest_free_size(void) {
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size_t max_size = 0;
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tlsf_walk_pool(tlsf_get_pool(heap), max_size_walker, &max_size);
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// IDF does this. Not sure why.
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return tlsf_fit_size(heap, max_size);
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}
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