From Ben Katz mbed-dev library. Removed unnecessary target files to reduce the overall size by a factor of 10 to make it easier to import into the online IDE.
Dependents: motor_driver motor_driver_screaming_fix
hal/mbed_sleep_manager.c
- Committer:
- saloutos
- Date:
- 2020-11-26
- Revision:
- 0:083111ae2a11
File content as of revision 0:083111ae2a11:
/* mbed Microcontroller Library * Copyright (c) 2017 ARM Limited * * 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. */ #include "mbed_sleep.h" #include "mbed_critical.h" #include "sleep_api.h" #include "mbed_error.h" #include <limits.h> #if DEVICE_SLEEP // deep sleep locking counter. A target is allowed to deep sleep if counter == 0 static uint16_t deep_sleep_lock = 0U; void sleep_manager_lock_deep_sleep(void) { core_util_critical_section_enter(); if (deep_sleep_lock == USHRT_MAX) { core_util_critical_section_exit(); error("Deep sleep lock would overflow (> USHRT_MAX)"); } core_util_atomic_incr_u16(&deep_sleep_lock, 1); core_util_critical_section_exit(); } void sleep_manager_unlock_deep_sleep(void) { core_util_critical_section_enter(); if (deep_sleep_lock == 0) { core_util_critical_section_exit(); error("Deep sleep lock would underflow (< 0)"); } core_util_atomic_decr_u16(&deep_sleep_lock, 1); core_util_critical_section_exit(); } bool sleep_manager_can_deep_sleep(void) { return deep_sleep_lock == 0 ? true : false; } void sleep_manager_sleep_auto(void) { core_util_critical_section_enter(); // debug profile should keep debuggers attached, no deep sleep allowed #ifdef MBED_DEBUG hal_sleep(); #else if (sleep_manager_can_deep_sleep()) { hal_deepsleep(); } else { hal_sleep(); } #endif core_util_critical_section_exit(); } #else // locking is valid only if DEVICE_SLEEP is defined // we provide empty implementation void sleep_manager_lock_deep_sleep(void) { } void sleep_manager_unlock_deep_sleep(void) { } bool sleep_manager_can_deep_sleep(void) { // no sleep implemented return false; } #endif