arduino-pico/cores/rp2040/_freertos.cpp
Earle F. Philhower, III f6973fc64d
Add RISC-V support, GCC 14 move (#2491)
* Adds RISC-V compilation option to the IDE and Platform.IO.
* Build RP2350-RISCV libpico, libbearssl
* Fix RP2350 BearSSL library (was copied from RP2040, now built for M33)
* New GCC 14.2 toolchain is required (12.4 RISC-V support is borked)
* Newlib locking fixed prototypes
* Manually force all runtime init code into RP2350 binaries
* Add RISC-V to CI
* Remove RP2350 BOOT2.S files, binaries (not used)
* Clean up minor GCC 14.x warnings
* Add RP2350-RISCV OTA build, link
* Add RISC-V FreeRTOS files (configuration still not running, but builds)
* Add basic documentation
2024-09-29 15:10:36 -07:00

62 lines
1.9 KiB
C++

/*
_freertos.cpp - Internal core definitions for FreeRTOS
Copyright (c) 2022 Earle F. Philhower, III <earlephilhower@yahoo.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 2.1 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, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "_freertos.h"
#include <pico/mutex.h>
#include <stdlib.h>
#include "Arduino.h"
typedef struct {
mutex_t *src;
SemaphoreHandle_t dst;
} FMMap;
static FMMap *_map = nullptr;
SemaphoreHandle_t __get_freertos_mutex_for_ptr(mutex_t *m, bool recursive) {
if (!_map) {
_map = (FMMap *)calloc(16, sizeof(FMMap));
}
// Pre-existing map
for (int i = 0; i < 16; i++) {
if (m == _map[i].src) {
return _map[i].dst;
}
}
for (int i = 0; i < 16; i++) {
if (_map[i].src == nullptr) {
// Make a new mutex
SemaphoreHandle_t fm;
if (recursive) {
fm = _freertos_recursive_mutex_create();
} else {
fm = __freertos_mutex_create();
}
if (fm == nullptr) {
return nullptr;
}
_map[i].src = m;
_map[i].dst = fm;
return fm;
}
}
return nullptr; // Need to make space for more mutex maps!
}