Example

Dependencies:   FXAS21002 FXOS8700Q

Committer:
maygup01
Date:
Tue Nov 19 09:49:38 2019 +0000
Revision:
0:11cc2b7889af
Example

Who changed what in which revision?

UserRevisionLine numberNew contents of line
maygup01 0:11cc2b7889af 1 // ----------------------------------------------------------------------------
maygup01 0:11cc2b7889af 2 // Copyright 2016-2017 ARM Ltd.
maygup01 0:11cc2b7889af 3 //
maygup01 0:11cc2b7889af 4 // SPDX-License-Identifier: Apache-2.0
maygup01 0:11cc2b7889af 5 //
maygup01 0:11cc2b7889af 6 // Licensed under the Apache License, Version 2.0 (the "License");
maygup01 0:11cc2b7889af 7 // you may not use this file except in compliance with the License.
maygup01 0:11cc2b7889af 8 // You may obtain a copy of the License at
maygup01 0:11cc2b7889af 9 //
maygup01 0:11cc2b7889af 10 // http://www.apache.org/licenses/LICENSE-2.0
maygup01 0:11cc2b7889af 11 //
maygup01 0:11cc2b7889af 12 // Unless required by applicable law or agreed to in writing, software
maygup01 0:11cc2b7889af 13 // distributed under the License is distributed on an "AS IS" BASIS,
maygup01 0:11cc2b7889af 14 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
maygup01 0:11cc2b7889af 15 // See the License for the specific language governing permissions and
maygup01 0:11cc2b7889af 16 // limitations under the License.
maygup01 0:11cc2b7889af 17 // ----------------------------------------------------------------------------
maygup01 0:11cc2b7889af 18
maygup01 0:11cc2b7889af 19 #include "platform/arm_hal_interrupt.h"
maygup01 0:11cc2b7889af 20
maygup01 0:11cc2b7889af 21 #include "arm_hal_interrupt_private.h"
maygup01 0:11cc2b7889af 22 #include "pal.h"
maygup01 0:11cc2b7889af 23
maygup01 0:11cc2b7889af 24 #include <assert.h>
maygup01 0:11cc2b7889af 25
maygup01 0:11cc2b7889af 26
maygup01 0:11cc2b7889af 27 static uint8_t sys_irq_disable_counter;
maygup01 0:11cc2b7889af 28
maygup01 0:11cc2b7889af 29 static palMutexID_t critical_mutex_id;
maygup01 0:11cc2b7889af 30
maygup01 0:11cc2b7889af 31 void platform_critical_init(void)
maygup01 0:11cc2b7889af 32 {
maygup01 0:11cc2b7889af 33 palStatus_t status;
maygup01 0:11cc2b7889af 34 status = pal_osMutexCreate(&critical_mutex_id);
maygup01 0:11cc2b7889af 35 assert(PAL_SUCCESS == status);
maygup01 0:11cc2b7889af 36 }
maygup01 0:11cc2b7889af 37
maygup01 0:11cc2b7889af 38 void platform_enter_critical(void)
maygup01 0:11cc2b7889af 39 {
maygup01 0:11cc2b7889af 40 palStatus_t status;
maygup01 0:11cc2b7889af 41 status = pal_osMutexWait(critical_mutex_id, UINT32_MAX);
maygup01 0:11cc2b7889af 42 assert(PAL_SUCCESS == status);
maygup01 0:11cc2b7889af 43 sys_irq_disable_counter++;
maygup01 0:11cc2b7889af 44 }
maygup01 0:11cc2b7889af 45
maygup01 0:11cc2b7889af 46 void platform_exit_critical(void)
maygup01 0:11cc2b7889af 47 {
maygup01 0:11cc2b7889af 48 palStatus_t status;
maygup01 0:11cc2b7889af 49 --sys_irq_disable_counter;
maygup01 0:11cc2b7889af 50 status = pal_osMutexRelease(critical_mutex_id);
maygup01 0:11cc2b7889af 51 assert(PAL_SUCCESS == status);
maygup01 0:11cc2b7889af 52 }