mbed official / mbed-dev

mbed library sources. Supersedes mbed-src.

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

targets/TARGET_Atmel/TARGET_SAM_CortexM0P/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
mbed_official 15:a81a8d6c1dfe 1 /* mbed Microcontroller Library
mbed_official 15:a81a8d6c1dfe 2 * Copyright (c) 2006-2015 ARM Limited
mbed_official 15:a81a8d6c1dfe 3 *
mbed_official 15:a81a8d6c1dfe 4 * Licensed under the Apache License, Version 2.0 (the "License");
mbed_official 15:a81a8d6c1dfe 5 * you may not use this file except in compliance with the License.
mbed_official 15:a81a8d6c1dfe 6 * You may obtain a copy of the License at
mbed_official 15:a81a8d6c1dfe 7 *
mbed_official 15:a81a8d6c1dfe 8 * http://www.apache.org/licenses/LICENSE-2.0
mbed_official 15:a81a8d6c1dfe 9 *
mbed_official 15:a81a8d6c1dfe 10 * Unless required by applicable law or agreed to in writing, software
mbed_official 15:a81a8d6c1dfe 11 * distributed under the License is distributed on an "AS IS" BASIS,
mbed_official 15:a81a8d6c1dfe 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbed_official 15:a81a8d6c1dfe 13 * See the License for the specific language governing permissions and
mbed_official 15:a81a8d6c1dfe 14 * limitations under the License.
mbed_official 15:a81a8d6c1dfe 15 */
mbed_official 15:a81a8d6c1dfe 16 #ifndef MBED_GPIO_OBJECT_H
mbed_official 15:a81a8d6c1dfe 17 #define MBED_GPIO_OBJECT_H
mbed_official 15:a81a8d6c1dfe 18
mbed_official 15:a81a8d6c1dfe 19 #include "mbed_assert.h"
mbed_official 15:a81a8d6c1dfe 20
mbed_official 15:a81a8d6c1dfe 21 #ifdef __cplusplus
mbed_official 15:a81a8d6c1dfe 22 extern "C" {
mbed_official 15:a81a8d6c1dfe 23 #endif
mbed_official 15:a81a8d6c1dfe 24
mbed_official 15:a81a8d6c1dfe 25 typedef struct {
mbed_official 15:a81a8d6c1dfe 26 PinName pin;
mbed_official 15:a81a8d6c1dfe 27 uint32_t mask;
mbed_official 15:a81a8d6c1dfe 28 uint8_t powersave;
mbed_official 15:a81a8d6c1dfe 29 uint8_t mode;
mbed_official 15:a81a8d6c1dfe 30 uint8_t direction;
mbed_official 15:a81a8d6c1dfe 31
mbed_official 15:a81a8d6c1dfe 32 __IO uint32_t *OUTCLR;
mbed_official 15:a81a8d6c1dfe 33 __IO uint32_t *OUTSET;
mbed_official 15:a81a8d6c1dfe 34 __I uint32_t *IN;
mbed_official 15:a81a8d6c1dfe 35 __I uint32_t *OUT;
mbed_official 15:a81a8d6c1dfe 36 } gpio_t;
mbed_official 15:a81a8d6c1dfe 37
mbed_official 15:a81a8d6c1dfe 38 static inline void gpio_write(gpio_t *obj, int value)
mbed_official 15:a81a8d6c1dfe 39 {
mbed_official 15:a81a8d6c1dfe 40 MBED_ASSERT(obj->pin != (PinName)NC);
mbed_official 15:a81a8d6c1dfe 41 if (value)
mbed_official 15:a81a8d6c1dfe 42 *obj->OUTSET = obj->mask;
mbed_official 15:a81a8d6c1dfe 43 else
mbed_official 15:a81a8d6c1dfe 44 *obj->OUTCLR = obj->mask;
mbed_official 15:a81a8d6c1dfe 45 }
mbed_official 15:a81a8d6c1dfe 46
mbed_official 15:a81a8d6c1dfe 47 static inline int gpio_read(gpio_t *obj)
mbed_official 15:a81a8d6c1dfe 48 {
mbed_official 15:a81a8d6c1dfe 49 MBED_ASSERT(obj->pin != (PinName)NC);
mbed_official 15:a81a8d6c1dfe 50 if (obj->direction == PIN_INPUT)
mbed_official 15:a81a8d6c1dfe 51 return ((*obj->IN & obj->mask) ? 1 : 0);
mbed_official 15:a81a8d6c1dfe 52 else
mbed_official 15:a81a8d6c1dfe 53 return ((*obj->OUT & obj->mask) ? 1 : 0);
mbed_official 15:a81a8d6c1dfe 54 }
mbed_official 15:a81a8d6c1dfe 55
mbed_official 15:a81a8d6c1dfe 56 static inline int gpio_is_connected(const gpio_t *obj)
mbed_official 15:a81a8d6c1dfe 57 {
mbed_official 15:a81a8d6c1dfe 58 return obj->pin != (PinName)NC;
mbed_official 15:a81a8d6c1dfe 59 }
mbed_official 15:a81a8d6c1dfe 60
mbed_official 15:a81a8d6c1dfe 61 #ifdef __cplusplus
mbed_official 15:a81a8d6c1dfe 62 }
mbed_official 15:a81a8d6c1dfe 63 #endif
mbed_official 15:a81a8d6c1dfe 64
mbed_official 15:a81a8d6c1dfe 65 #endif