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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

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TARGET_SAMR21G18A/TOOLCHAIN_ARM_STD/gpio_object.h@171:3a7713b1edbc, 2018-11-08 (annotated)

Committer:
AnnaBridge
Date:
Thu Nov 08 11:45:42 2018 +0000
Revision:
171:3a7713b1edbc
Parent:
TARGET_SAMD21G18A/TARGET_Atmel/TARGET_SAM_CortexM0P/gpio_object.h@111:4336505e4b1c 
mbed library. Release version 164

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Kojto 111:4336505e4b1c 1 /* mbed Microcontroller Library
Kojto 111:4336505e4b1c 2 * Copyright (c) 2006-2015 ARM Limited
Kojto 111:4336505e4b1c 3 *
Kojto 111:4336505e4b1c 4 * Licensed under the Apache License, Version 2.0 (the "License");
Kojto 111:4336505e4b1c 5 * you may not use this file except in compliance with the License.
Kojto 111:4336505e4b1c 6 * You may obtain a copy of the License at
Kojto 111:4336505e4b1c 7 *
Kojto 111:4336505e4b1c 8 * http://www.apache.org/licenses/LICENSE-2.0
Kojto 111:4336505e4b1c 9 *
Kojto 111:4336505e4b1c 10 * Unless required by applicable law or agreed to in writing, software
Kojto 111:4336505e4b1c 11 * distributed under the License is distributed on an "AS IS" BASIS,
Kojto 111:4336505e4b1c 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Kojto 111:4336505e4b1c 13 * See the License for the specific language governing permissions and
Kojto 111:4336505e4b1c 14 * limitations under the License.
Kojto 111:4336505e4b1c 15 */
Kojto 111:4336505e4b1c 16 #ifndef MBED_GPIO_OBJECT_H
Kojto 111:4336505e4b1c 17 #define MBED_GPIO_OBJECT_H
Kojto 111:4336505e4b1c 18
Kojto 111:4336505e4b1c 19 #include "mbed_assert.h"
Kojto 111:4336505e4b1c 20
Kojto 111:4336505e4b1c 21 #ifdef __cplusplus
Kojto 111:4336505e4b1c 22 extern "C" {
Kojto 111:4336505e4b1c 23 #endif
Kojto 111:4336505e4b1c 24
Kojto 111:4336505e4b1c 25 typedef struct {
Kojto 111:4336505e4b1c 26 PinName pin;
Kojto 111:4336505e4b1c 27 uint32_t mask;
Kojto 111:4336505e4b1c 28 uint8_t powersave;
Kojto 111:4336505e4b1c 29 uint8_t mode;
Kojto 111:4336505e4b1c 30 uint8_t direction;
Kojto 111:4336505e4b1c 31
Kojto 111:4336505e4b1c 32 __IO uint32_t *OUTCLR;
Kojto 111:4336505e4b1c 33 __IO uint32_t *OUTSET;
Kojto 111:4336505e4b1c 34 __I uint32_t *IN;
Kojto 111:4336505e4b1c 35 __I uint32_t *OUT;
Kojto 111:4336505e4b1c 36 } gpio_t;
Kojto 111:4336505e4b1c 37
Kojto 111:4336505e4b1c 38 static inline void gpio_write(gpio_t *obj, int value)
Kojto 111:4336505e4b1c 39 {
Kojto 111:4336505e4b1c 40 MBED_ASSERT(obj->pin != (PinName)NC);
Kojto 111:4336505e4b1c 41 if (value)
Kojto 111:4336505e4b1c 42 *obj->OUTSET = obj->mask;
Kojto 111:4336505e4b1c 43 else
Kojto 111:4336505e4b1c 44 *obj->OUTCLR = obj->mask;
Kojto 111:4336505e4b1c 45 }
Kojto 111:4336505e4b1c 46
Kojto 111:4336505e4b1c 47 static inline int gpio_read(gpio_t *obj)
Kojto 111:4336505e4b1c 48 {
Kojto 111:4336505e4b1c 49 MBED_ASSERT(obj->pin != (PinName)NC);
Kojto 111:4336505e4b1c 50 if (obj->direction == PIN_INPUT)
Kojto 111:4336505e4b1c 51 return ((*obj->IN & obj->mask) ? 1 : 0);
Kojto 111:4336505e4b1c 52 else
Kojto 111:4336505e4b1c 53 return ((*obj->OUT & obj->mask) ? 1 : 0);
Kojto 111:4336505e4b1c 54 }
Kojto 111:4336505e4b1c 55
Kojto 111:4336505e4b1c 56 static inline int gpio_is_connected(const gpio_t *obj)
Kojto 111:4336505e4b1c 57 {
Kojto 111:4336505e4b1c 58 return obj->pin != (PinName)NC;
Kojto 111:4336505e4b1c 59 }
Kojto 111:4336505e4b1c 60
Kojto 111:4336505e4b1c 61 #ifdef __cplusplus
Kojto 111:4336505e4b1c 62 }
Kojto 111:4336505e4b1c 63 #endif
Kojto 111:4336505e4b1c 64
Kojto 111:4336505e4b1c 65 #endif