mbed official / mbed-dev

mbed library sources. Supersedes mbed-src.

Dependents:   Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more

targets/TARGET_ARM_SSG/TARGET_BEETLE/gpio_object.h@189:f392fc9709a3, 2019-02-20 (annotated)

Committer:
AnnaBridge
Date:
Wed Feb 20 22:31:08 2019 +0000
Revision:
189:f392fc9709a3
Parent:
149:156823d33999 
mbed library release version 165

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 144:ef7eb2e8f9f7 1 /* mbed Microcontroller Library
<> 144:ef7eb2e8f9f7 2 * Copyright (c) 2015 ARM Limited
<> 144:ef7eb2e8f9f7 3 *
<> 144:ef7eb2e8f9f7 4 * Licensed under the Apache License, Version 2.0 (the "License");
<> 144:ef7eb2e8f9f7 5 * you may not use this file except in compliance with the License.
<> 144:ef7eb2e8f9f7 6 * You may obtain a copy of the License at
<> 144:ef7eb2e8f9f7 7 *
<> 144:ef7eb2e8f9f7 8 * http://www.apache.org/licenses/LICENSE-2.0
<> 144:ef7eb2e8f9f7 9 *
<> 144:ef7eb2e8f9f7 10 * Unless required by applicable law or agreed to in writing, software
<> 144:ef7eb2e8f9f7 11 * distributed under the License is distributed on an "AS IS" BASIS,
<> 144:ef7eb2e8f9f7 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<> 144:ef7eb2e8f9f7 13 * See the License for the specific language governing permissions and
<> 144:ef7eb2e8f9f7 14 * limitations under the License.
<> 144:ef7eb2e8f9f7 15 */
<> 144:ef7eb2e8f9f7 16 #ifndef MBED_GPIO_OBJECT_H
<> 144:ef7eb2e8f9f7 17 #define MBED_GPIO_OBJECT_H
<> 144:ef7eb2e8f9f7 18
<> 144:ef7eb2e8f9f7 19 #include "cmsis.h"
<> 144:ef7eb2e8f9f7 20 #include "PortNames.h"
<> 144:ef7eb2e8f9f7 21 #include "PeripheralNames.h"
<> 144:ef7eb2e8f9f7 22 #include "PinNames.h"
<> 144:ef7eb2e8f9f7 23
<> 144:ef7eb2e8f9f7 24 #ifdef __cplusplus
<> 144:ef7eb2e8f9f7 25 extern "C" {
<> 144:ef7eb2e8f9f7 26 #endif
<> 144:ef7eb2e8f9f7 27
<> 144:ef7eb2e8f9f7 28 typedef struct {
<> 144:ef7eb2e8f9f7 29 PinName pin;
<> 144:ef7eb2e8f9f7 30 uint32_t mask;
<> 144:ef7eb2e8f9f7 31 uint32_t pin_number;
<> 144:ef7eb2e8f9f7 32
<> 144:ef7eb2e8f9f7 33 __IO uint32_t *reg_dir;
<> 144:ef7eb2e8f9f7 34 __IO uint32_t *reg_dirclr;
<> 144:ef7eb2e8f9f7 35 __IO uint32_t *reg_data;
<> 144:ef7eb2e8f9f7 36 __I uint32_t *reg_in;
<> 144:ef7eb2e8f9f7 37 } gpio_t;
<> 144:ef7eb2e8f9f7 38
<> 144:ef7eb2e8f9f7 39 static inline void gpio_write(gpio_t *obj, int value) {
<> 144:ef7eb2e8f9f7 40 if (obj->pin < LED1 || obj->pin > LED4) {
<> 144:ef7eb2e8f9f7 41 if (value == 1) {
<> 144:ef7eb2e8f9f7 42 *obj->reg_data |= (obj->mask);
<> 144:ef7eb2e8f9f7 43 } else if (value == 0){
<> 144:ef7eb2e8f9f7 44 *obj->reg_data &= ~(obj->mask);
<> 144:ef7eb2e8f9f7 45 }
<> 144:ef7eb2e8f9f7 46 } else {
<> 144:ef7eb2e8f9f7 47 /* Emulated LEDs return without taking any action */
<> 144:ef7eb2e8f9f7 48 return;
<> 144:ef7eb2e8f9f7 49 }
<> 144:ef7eb2e8f9f7 50 }
<> 144:ef7eb2e8f9f7 51
<> 144:ef7eb2e8f9f7 52 static inline int gpio_read(gpio_t *obj) {
<> 144:ef7eb2e8f9f7 53 if (obj->pin < LED1 || obj->pin > LED4) {
<> 144:ef7eb2e8f9f7 54 return ((*obj->reg_in & obj->mask) ? 1 : 0);
<> 144:ef7eb2e8f9f7 55 } else {
<> 144:ef7eb2e8f9f7 56 /* Emulated LEDs return OFF always */
<> 144:ef7eb2e8f9f7 57 return 0;
<> 144:ef7eb2e8f9f7 58 }
<> 144:ef7eb2e8f9f7 59 }
<> 144:ef7eb2e8f9f7 60
<> 144:ef7eb2e8f9f7 61 #ifdef __cplusplus
<> 144:ef7eb2e8f9f7 62 }
<> 144:ef7eb2e8f9f7 63 #endif
<> 144:ef7eb2e8f9f7 64
<> 144:ef7eb2e8f9f7 65 #endif