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The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

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mbed 2

This is the mbed 2 library. If you'd like to learn about Mbed OS please see the mbed-os docs.

TARGET_ARM_BEETLE_SOC/TOOLCHAIN_IAR/gpio_object.h@172:65be27845400, 2019-02-20 (annotated)

Committer:
AnnaBridge
Date:
Wed Feb 20 20:53:29 2019 +0000
Revision:
172:65be27845400
Parent:
171:3a7713b1edbc 
mbed library release version 165

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 171:3a7713b1edbc 1 /* mbed Microcontroller Library
AnnaBridge 171:3a7713b1edbc 2 * Copyright (c) 2015 ARM Limited
AnnaBridge 171:3a7713b1edbc 3 *
AnnaBridge 171:3a7713b1edbc 4 * Licensed under the Apache License, Version 2.0 (the "License");
AnnaBridge 171:3a7713b1edbc 5 * you may not use this file except in compliance with the License.
AnnaBridge 171:3a7713b1edbc 6 * You may obtain a copy of the License at
AnnaBridge 171:3a7713b1edbc 7 *
AnnaBridge 171:3a7713b1edbc 8 * http://www.apache.org/licenses/LICENSE-2.0
AnnaBridge 171:3a7713b1edbc 9 *
AnnaBridge 171:3a7713b1edbc 10 * Unless required by applicable law or agreed to in writing, software
AnnaBridge 171:3a7713b1edbc 11 * distributed under the License is distributed on an "AS IS" BASIS,
AnnaBridge 171:3a7713b1edbc 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
AnnaBridge 171:3a7713b1edbc 13 * See the License for the specific language governing permissions and
AnnaBridge 171:3a7713b1edbc 14 * limitations under the License.
AnnaBridge 171:3a7713b1edbc 15 */
AnnaBridge 171:3a7713b1edbc 16 #ifndef MBED_GPIO_OBJECT_H
AnnaBridge 171:3a7713b1edbc 17 #define MBED_GPIO_OBJECT_H
AnnaBridge 171:3a7713b1edbc 18
AnnaBridge 171:3a7713b1edbc 19 #include "cmsis.h"
AnnaBridge 171:3a7713b1edbc 20 #include "PortNames.h"
AnnaBridge 171:3a7713b1edbc 21 #include "PeripheralNames.h"
AnnaBridge 171:3a7713b1edbc 22 #include "PinNames.h"
AnnaBridge 171:3a7713b1edbc 23
AnnaBridge 171:3a7713b1edbc 24 #ifdef __cplusplus
AnnaBridge 171:3a7713b1edbc 25 extern "C" {
AnnaBridge 171:3a7713b1edbc 26 #endif
AnnaBridge 171:3a7713b1edbc 27
AnnaBridge 171:3a7713b1edbc 28 typedef struct {
AnnaBridge 171:3a7713b1edbc 29 PinName pin;
AnnaBridge 171:3a7713b1edbc 30 uint32_t mask;
AnnaBridge 171:3a7713b1edbc 31 uint32_t pin_number;
AnnaBridge 171:3a7713b1edbc 32
AnnaBridge 171:3a7713b1edbc 33 __IO uint32_t *reg_dir;
AnnaBridge 171:3a7713b1edbc 34 __IO uint32_t *reg_dirclr;
AnnaBridge 171:3a7713b1edbc 35 __IO uint32_t *reg_data;
AnnaBridge 171:3a7713b1edbc 36 __I uint32_t *reg_in;
AnnaBridge 171:3a7713b1edbc 37 } gpio_t;
AnnaBridge 171:3a7713b1edbc 38
AnnaBridge 171:3a7713b1edbc 39 static inline void gpio_write(gpio_t *obj, int value) {
AnnaBridge 171:3a7713b1edbc 40 if (obj->pin < LED1 || obj->pin > LED4) {
AnnaBridge 171:3a7713b1edbc 41 if (value == 1) {
AnnaBridge 171:3a7713b1edbc 42 *obj->reg_data |= (obj->mask);
AnnaBridge 171:3a7713b1edbc 43 } else if (value == 0){
AnnaBridge 171:3a7713b1edbc 44 *obj->reg_data &= ~(obj->mask);
AnnaBridge 171:3a7713b1edbc 45 }
AnnaBridge 171:3a7713b1edbc 46 } else {
AnnaBridge 171:3a7713b1edbc 47 /* Emulated LEDs return without taking any action */
AnnaBridge 171:3a7713b1edbc 48 return;
AnnaBridge 171:3a7713b1edbc 49 }
AnnaBridge 171:3a7713b1edbc 50 }
AnnaBridge 171:3a7713b1edbc 51
AnnaBridge 171:3a7713b1edbc 52 static inline int gpio_read(gpio_t *obj) {
AnnaBridge 171:3a7713b1edbc 53 if (obj->pin < LED1 || obj->pin > LED4) {
AnnaBridge 171:3a7713b1edbc 54 return ((*obj->reg_in & obj->mask) ? 1 : 0);
AnnaBridge 171:3a7713b1edbc 55 } else {
AnnaBridge 171:3a7713b1edbc 56 /* Emulated LEDs return OFF always */
AnnaBridge 171:3a7713b1edbc 57 return 0;
AnnaBridge 171:3a7713b1edbc 58 }
AnnaBridge 171:3a7713b1edbc 59 }
AnnaBridge 171:3a7713b1edbc 60
AnnaBridge 171:3a7713b1edbc 61 #ifdef __cplusplus
AnnaBridge 171:3a7713b1edbc 62 }
AnnaBridge 171:3a7713b1edbc 63 #endif
AnnaBridge 171:3a7713b1edbc 64
AnnaBridge 171:3a7713b1edbc 65 #endif