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mbed library sources

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Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.

Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.

If you are looking for a stable and tested release, please import one of the official mbed library releases:

Import librarymbed

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

Last commit 20 Feb 2019 by mbed official

targets/hal/TARGET_Atmel/TARGET_SAM21/gpio_object.h@579:53297373a894, 2015-07-01 (annotated)

Committer:
mbed_official
Date:
Wed Jul 01 09:45:11 2015 +0100
Revision:
579:53297373a894
Synchronized with git revision d5b4d2ab9c47edb4dc5776e7177b0c2263459081



Full URL: https://github.com/mbedmicro/mbed/commit/d5b4d2ab9c47edb4dc5776e7177b0c2263459081/



Initial version of drivers for SAMR21

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 579:53297373a894 1 /* mbed Microcontroller Library
mbed_official 579:53297373a894 2 * Copyright (c) 2006-2013 ARM Limited
mbed_official 579:53297373a894 3 *
mbed_official 579:53297373a894 4 * Licensed under the Apache License, Version 2.0 (the "License");
mbed_official 579:53297373a894 5 * you may not use this file except in compliance with the License.
mbed_official 579:53297373a894 6 * You may obtain a copy of the License at
mbed_official 579:53297373a894 7 *
mbed_official 579:53297373a894 8 * http://www.apache.org/licenses/LICENSE-2.0
mbed_official 579:53297373a894 9 *
mbed_official 579:53297373a894 10 * Unless required by applicable law or agreed to in writing, software
mbed_official 579:53297373a894 11 * distributed under the License is distributed on an "AS IS" BASIS,
mbed_official 579:53297373a894 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbed_official 579:53297373a894 13 * See the License for the specific language governing permissions and
mbed_official 579:53297373a894 14 * limitations under the License.
mbed_official 579:53297373a894 15 */
mbed_official 579:53297373a894 16 #ifndef MBED_GPIO_OBJECT_H
mbed_official 579:53297373a894 17 #define MBED_GPIO_OBJECT_H
mbed_official 579:53297373a894 18
mbed_official 579:53297373a894 19 #include "mbed_assert.h"
mbed_official 579:53297373a894 20
mbed_official 579:53297373a894 21 #ifdef __cplusplus
mbed_official 579:53297373a894 22 extern "C" {
mbed_official 579:53297373a894 23 #endif
mbed_official 579:53297373a894 24
mbed_official 579:53297373a894 25 typedef struct {
mbed_official 579:53297373a894 26 PinName pin;
mbed_official 579:53297373a894 27 uint32_t mask;
mbed_official 579:53297373a894 28 uint8_t powersave;
mbed_official 579:53297373a894 29 uint8_t mode;
mbed_official 579:53297373a894 30 uint8_t direction;
mbed_official 579:53297373a894 31
mbed_official 579:53297373a894 32 __IO uint32_t *OUTCLR;
mbed_official 579:53297373a894 33 __IO uint32_t *OUTSET;
mbed_official 579:53297373a894 34 __I uint32_t *IN;
mbed_official 579:53297373a894 35 __I uint32_t *OUT;
mbed_official 579:53297373a894 36 } gpio_t;
mbed_official 579:53297373a894 37
mbed_official 579:53297373a894 38 static inline void gpio_write(gpio_t *obj, int value)
mbed_official 579:53297373a894 39 {
mbed_official 579:53297373a894 40 MBED_ASSERT(obj->pin != (PinName)NC);
mbed_official 579:53297373a894 41 if (value)
mbed_official 579:53297373a894 42 *obj->OUTSET = obj->mask;
mbed_official 579:53297373a894 43 else
mbed_official 579:53297373a894 44 *obj->OUTCLR = obj->mask;
mbed_official 579:53297373a894 45 }
mbed_official 579:53297373a894 46
mbed_official 579:53297373a894 47 static inline int gpio_read(gpio_t *obj)
mbed_official 579:53297373a894 48 {
mbed_official 579:53297373a894 49 MBED_ASSERT(obj->pin != (PinName)NC);
mbed_official 579:53297373a894 50 if (obj->direction == PIN_INPUT)
mbed_official 579:53297373a894 51 return ((*obj->IN & obj->mask) ? 1 : 0);
mbed_official 579:53297373a894 52 else
mbed_official 579:53297373a894 53 return ((*obj->OUT & obj->mask) ? 1 : 0);
mbed_official 579:53297373a894 54 }
mbed_official 579:53297373a894 55
mbed_official 579:53297373a894 56 static inline int gpio_is_connected(const gpio_t *obj)
mbed_official 579:53297373a894 57 {
mbed_official 579:53297373a894 58 return obj->pin != (PinName)NC;
mbed_official 579:53297373a894 59 }
mbed_official 579:53297373a894 60
mbed_official 579:53297373a894 61 #ifdef __cplusplus
mbed_official 579:53297373a894 62 }
mbed_official 579:53297373a894 63 #endif
mbed_official 579:53297373a894 64
mbed_official 579:53297373a894 65 #endif