mbed official / mbed

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

Dependents:   hello SerialTestv11 SerialTestv12 Sierpinski ... more

mbed 2

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

TARGET_K20D50M/TOOLCHAIN_GCC_ARM/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
Kojto 93:e188a91d3eaa 1 /* mbed Microcontroller Library
Kojto 93:e188a91d3eaa 2 * Copyright (c) 2006-2015 ARM Limited
Kojto 93:e188a91d3eaa 3 *
Kojto 93:e188a91d3eaa 4 * Licensed under the Apache License, Version 2.0 (the "License");
Kojto 93:e188a91d3eaa 5 * you may not use this file except in compliance with the License.
Kojto 93:e188a91d3eaa 6 * You may obtain a copy of the License at
Kojto 93:e188a91d3eaa 7 *
Kojto 93:e188a91d3eaa 8 * http://www.apache.org/licenses/LICENSE-2.0
Kojto 93:e188a91d3eaa 9 *
Kojto 93:e188a91d3eaa 10 * Unless required by applicable law or agreed to in writing, software
Kojto 93:e188a91d3eaa 11 * distributed under the License is distributed on an "AS IS" BASIS,
Kojto 93:e188a91d3eaa 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Kojto 93:e188a91d3eaa 13 * See the License for the specific language governing permissions and
Kojto 93:e188a91d3eaa 14 * limitations under the License.
Kojto 93:e188a91d3eaa 15 */
Kojto 93:e188a91d3eaa 16 #ifndef MBED_GPIO_OBJECT_H
Kojto 93:e188a91d3eaa 17 #define MBED_GPIO_OBJECT_H
Kojto 93:e188a91d3eaa 18
Kojto 93:e188a91d3eaa 19 #include "mbed_assert.h"
Kojto 93:e188a91d3eaa 20
Kojto 93:e188a91d3eaa 21 #ifdef __cplusplus
Kojto 93:e188a91d3eaa 22 extern "C" {
Kojto 93:e188a91d3eaa 23 #endif
Kojto 93:e188a91d3eaa 24
Kojto 93:e188a91d3eaa 25 typedef struct {
Kojto 93:e188a91d3eaa 26 PinName pin;
Kojto 93:e188a91d3eaa 27 uint32_t mask;
Kojto 93:e188a91d3eaa 28 __IO uint32_t *reg_dir;
Kojto 93:e188a91d3eaa 29 __IO uint32_t *reg_set;
Kojto 93:e188a91d3eaa 30 __IO uint32_t *reg_clr;
Kojto 93:e188a91d3eaa 31 __I uint32_t *reg_in;
Kojto 93:e188a91d3eaa 32 } gpio_t;
Kojto 93:e188a91d3eaa 33
Kojto 93:e188a91d3eaa 34 static inline void gpio_write(gpio_t *obj, int value) {
Kojto 93:e188a91d3eaa 35 MBED_ASSERT(obj->pin != (PinName)NC);
Kojto 93:e188a91d3eaa 36 if (value) {
Kojto 93:e188a91d3eaa 37 *obj->reg_set = obj->mask;
Kojto 93:e188a91d3eaa 38 } else {
Kojto 93:e188a91d3eaa 39 *obj->reg_clr = obj->mask;
Kojto 93:e188a91d3eaa 40 }
Kojto 93:e188a91d3eaa 41 }
Kojto 93:e188a91d3eaa 42
Kojto 93:e188a91d3eaa 43 static inline int gpio_read(gpio_t *obj) {
Kojto 93:e188a91d3eaa 44 MBED_ASSERT(obj->pin != (PinName)NC);
Kojto 93:e188a91d3eaa 45 return ((*obj->reg_in & obj->mask) ? 1 : 0);
Kojto 93:e188a91d3eaa 46 }
Kojto 93:e188a91d3eaa 47
Kojto 93:e188a91d3eaa 48 static inline int gpio_is_connected(const gpio_t *obj) {
Kojto 93:e188a91d3eaa 49 return obj->pin != (PinName)NC;
Kojto 93:e188a91d3eaa 50 }
Kojto 93:e188a91d3eaa 51
Kojto 93:e188a91d3eaa 52 #ifdef __cplusplus
Kojto 93:e188a91d3eaa 53 }
Kojto 93:e188a91d3eaa 54 #endif
Kojto 93:e188a91d3eaa 55
Kojto 93:e188a91d3eaa 56 #endif