Arrow / Mbed OS DAPLink Reset

Repostiory containing DAPLink source code with Reset Pin workaround for HANI_IOT board.

Upstream: https://github.com/ARMmbed/DAPLink

source/daplink/cortex_m.h@0:01f31e923fe2, 2020-04-07 (annotated)

Committer:
Pawel Zarembski
Date:
Tue Apr 07 12:55:42 2020 +0200
Revision:
0:01f31e923fe2
hani: DAPLink with reset workaround

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Pawel Zarembski 0:01f31e923fe2 1 /**
Pawel Zarembski 0:01f31e923fe2 2 * @file cortex_m.h
Pawel Zarembski 0:01f31e923fe2 3 * @brief ARM Cortex-Mx cpu state helper functions
Pawel Zarembski 0:01f31e923fe2 4 *
Pawel Zarembski 0:01f31e923fe2 5 * DAPLink Interface Firmware
Pawel Zarembski 0:01f31e923fe2 6 * Copyright (c) 2009-2016, ARM Limited, All Rights Reserved
Pawel Zarembski 0:01f31e923fe2 7 * SPDX-License-Identifier: Apache-2.0
Pawel Zarembski 0:01f31e923fe2 8 *
Pawel Zarembski 0:01f31e923fe2 9 * Licensed under the Apache License, Version 2.0 (the "License"); you may
Pawel Zarembski 0:01f31e923fe2 10 * not use this file except in compliance with the License.
Pawel Zarembski 0:01f31e923fe2 11 * You may obtain a copy of the License at
Pawel Zarembski 0:01f31e923fe2 12 *
Pawel Zarembski 0:01f31e923fe2 13 * http://www.apache.org/licenses/LICENSE-2.0
Pawel Zarembski 0:01f31e923fe2 14 *
Pawel Zarembski 0:01f31e923fe2 15 * Unless required by applicable law or agreed to in writing, software
Pawel Zarembski 0:01f31e923fe2 16 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
Pawel Zarembski 0:01f31e923fe2 17 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Pawel Zarembski 0:01f31e923fe2 18 * See the License for the specific language governing permissions and
Pawel Zarembski 0:01f31e923fe2 19 * limitations under the License.
Pawel Zarembski 0:01f31e923fe2 20 */
Pawel Zarembski 0:01f31e923fe2 21
Pawel Zarembski 0:01f31e923fe2 22 #ifndef CORTEX_M_H
Pawel Zarembski 0:01f31e923fe2 23 #define CORTEX_M_H
Pawel Zarembski 0:01f31e923fe2 24
Pawel Zarembski 0:01f31e923fe2 25 #include <stdint.h>
Pawel Zarembski 0:01f31e923fe2 26 #include <stdbool.h>
Pawel Zarembski 0:01f31e923fe2 27
Pawel Zarembski 0:01f31e923fe2 28 #include "IO_Config.h"
Pawel Zarembski 0:01f31e923fe2 29
Pawel Zarembski 0:01f31e923fe2 30 #ifdef __cplusplus
Pawel Zarembski 0:01f31e923fe2 31 extern "C" {
Pawel Zarembski 0:01f31e923fe2 32 #endif
Pawel Zarembski 0:01f31e923fe2 33
Pawel Zarembski 0:01f31e923fe2 34 typedef int cortex_int_state_t;
Pawel Zarembski 0:01f31e923fe2 35
Pawel Zarembski 0:01f31e923fe2 36 __attribute__((always_inline))
Pawel Zarembski 0:01f31e923fe2 37 static cortex_int_state_t cortex_int_get_and_disable(void)
Pawel Zarembski 0:01f31e923fe2 38 {
Pawel Zarembski 0:01f31e923fe2 39 cortex_int_state_t state;
Pawel Zarembski 0:01f31e923fe2 40 state = __disable_irq();
Pawel Zarembski 0:01f31e923fe2 41 return state;
Pawel Zarembski 0:01f31e923fe2 42 }
Pawel Zarembski 0:01f31e923fe2 43
Pawel Zarembski 0:01f31e923fe2 44 __attribute__((always_inline))
Pawel Zarembski 0:01f31e923fe2 45 static void cortex_int_restore(cortex_int_state_t state)
Pawel Zarembski 0:01f31e923fe2 46 {
Pawel Zarembski 0:01f31e923fe2 47 if (!state) {
Pawel Zarembski 0:01f31e923fe2 48 __enable_irq();
Pawel Zarembski 0:01f31e923fe2 49 }
Pawel Zarembski 0:01f31e923fe2 50 }
Pawel Zarembski 0:01f31e923fe2 51
Pawel Zarembski 0:01f31e923fe2 52 __attribute__((always_inline))
Pawel Zarembski 0:01f31e923fe2 53 static bool cortex_in_isr(void)
Pawel Zarembski 0:01f31e923fe2 54 {
Pawel Zarembski 0:01f31e923fe2 55 return (__get_xPSR() & 0x1F) != 0;
Pawel Zarembski 0:01f31e923fe2 56 }
Pawel Zarembski 0:01f31e923fe2 57
Pawel Zarembski 0:01f31e923fe2 58 extern void SystemReset(void);
Pawel Zarembski 0:01f31e923fe2 59
Pawel Zarembski 0:01f31e923fe2 60 #ifdef __cplusplus
Pawel Zarembski 0:01f31e923fe2 61 }
Pawel Zarembski 0:01f31e923fe2 62 #endif
Pawel Zarembski 0:01f31e923fe2 63
Pawel Zarembski 0:01f31e923fe2 64 #endif