0ef1717155
Some checks failed
Basic Checks / license-check (push) Has been cancelled
Basic Checks / include-check (push) Has been cancelled
Basic Checks / style-check (push) Has been cancelled
Basic Checks / docs-check (push) Has been cancelled
Basic Checks / python-tests (push) Has been cancelled
Basic Checks / pin-validation (push) Has been cancelled
Basic Checks / cmake-checks (push) Has been cancelled
Basic Checks / frozen-tools-check (push) Has been cancelled
Publish or Update docker image for head of branch / prepare-tags (push) Has been cancelled
Release or update docker image for a released mbed-os version / prepare-tags (push) Has been cancelled
Publish or Update docker image for head of branch / build-container (push) Has been cancelled
Publish or Update docker image for head of branch / test-container (linux/amd64) (push) Has been cancelled
Publish or Update docker image for head of branch / test-container (linux/arm64) (push) Has been cancelled
Publish or Update docker image for head of branch / deploy-container (push) Has been cancelled
Release or update docker image for a released mbed-os version / build-container (push) Has been cancelled
Release or update docker image for a released mbed-os version / test-container (linux/amd64) (push) Has been cancelled
Release or update docker image for a released mbed-os version / test-container (linux/arm64) (push) Has been cancelled
Release or update docker image for a released mbed-os version / deploy-container (push) Has been cancelled
Prune temporary docker images / prune-images (push) Has been cancelled
82 lines
2.1 KiB
C
82 lines
2.1 KiB
C
/*
|
|
* Copyright (c) 2015-2019, ARM Limited, All Rights Reserved
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License"); you may
|
|
* not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
/* Declare __STDC_LIMIT_MACROS so stdint.h defines UINT32_MAX when using C++ */
|
|
#define __STDC_LIMIT_MACROS
|
|
#include "hal/critical_section_api.h"
|
|
|
|
#include "cmsis.h"
|
|
#include "platform/mbed_assert.h"
|
|
#include "platform/mbed_critical.h"
|
|
|
|
static uint32_t critical_section_reentrancy_counter = 0;
|
|
|
|
bool core_util_are_interrupts_enabled(void)
|
|
{
|
|
#if defined(__CORTEX_A)
|
|
return ((__get_CPSR() & 0x80) == 0);
|
|
#else
|
|
return ((__get_PRIMASK() & 0x1) == 0);
|
|
#endif
|
|
}
|
|
|
|
bool core_util_is_isr_active(void)
|
|
{
|
|
#if defined(__CORTEX_A)
|
|
switch (__get_CPSR() & 0x1FU) {
|
|
case CPSR_M_USR:
|
|
case CPSR_M_SYS:
|
|
return false;
|
|
case CPSR_M_SVC:
|
|
default:
|
|
return true;
|
|
}
|
|
#else
|
|
return (__get_IPSR() != 0U);
|
|
#endif
|
|
}
|
|
|
|
bool core_util_in_critical_section(void)
|
|
{
|
|
return hal_in_critical_section();
|
|
}
|
|
|
|
void core_util_critical_section_enter(void)
|
|
{
|
|
hal_critical_section_enter();
|
|
|
|
// If the reentrancy counter overflows something has gone badly wrong.
|
|
MBED_ASSERT(critical_section_reentrancy_counter < UINT32_MAX);
|
|
|
|
++critical_section_reentrancy_counter;
|
|
}
|
|
|
|
void core_util_critical_section_exit(void)
|
|
{
|
|
|
|
// If critical_section_enter has not previously been called, do nothing
|
|
if (critical_section_reentrancy_counter == 0) {
|
|
return;
|
|
}
|
|
|
|
--critical_section_reentrancy_counter;
|
|
|
|
if (critical_section_reentrancy_counter == 0) {
|
|
hal_critical_section_exit();
|
|
}
|
|
}
|