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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

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

TARGET_NUCLEO_F401RE/TARGET_STM/TARGET_NUCLEO_F401RE/gpio_object.h@89:552587b429a1, 2014-09-12 (annotated)

Committer:
bogdanm
Date:
Fri Sep 12 16:41:52 2014 +0100
Revision:
89:552587b429a1
Parent:
86:04dd9b1680ae
Child:
92:4fc01daae5a5
Release 89 of the mbed library



Main changes:



- low power optimizations for Nordic targets

- code structure changes for Freescale K64F targets

- bug fixes in various backends

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 82:6473597d706e 1 /* mbed Microcontroller Library
bogdanm 82:6473597d706e 2 *******************************************************************************
bogdanm 82:6473597d706e 3 * Copyright (c) 2014, STMicroelectronics
bogdanm 82:6473597d706e 4 * All rights reserved.
bogdanm 82:6473597d706e 5 *
bogdanm 82:6473597d706e 6 * Redistribution and use in source and binary forms, with or without
bogdanm 82:6473597d706e 7 * modification, are permitted provided that the following conditions are met:
bogdanm 82:6473597d706e 8 *
bogdanm 82:6473597d706e 9 * 1. Redistributions of source code must retain the above copyright notice,
bogdanm 82:6473597d706e 10 * this list of conditions and the following disclaimer.
bogdanm 82:6473597d706e 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
bogdanm 82:6473597d706e 12 * this list of conditions and the following disclaimer in the documentation
bogdanm 82:6473597d706e 13 * and/or other materials provided with the distribution.
bogdanm 82:6473597d706e 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
bogdanm 82:6473597d706e 15 * may be used to endorse or promote products derived from this software
bogdanm 82:6473597d706e 16 * without specific prior written permission.
bogdanm 82:6473597d706e 17 *
bogdanm 82:6473597d706e 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
bogdanm 82:6473597d706e 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
bogdanm 82:6473597d706e 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
bogdanm 82:6473597d706e 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
bogdanm 82:6473597d706e 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
bogdanm 82:6473597d706e 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
bogdanm 82:6473597d706e 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
bogdanm 82:6473597d706e 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
bogdanm 82:6473597d706e 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
bogdanm 82:6473597d706e 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
bogdanm 82:6473597d706e 28 *******************************************************************************
bogdanm 82:6473597d706e 29 */
bogdanm 82:6473597d706e 30 #ifndef MBED_GPIO_OBJECT_H
bogdanm 82:6473597d706e 31 #define MBED_GPIO_OBJECT_H
bogdanm 82:6473597d706e 32
bogdanm 86:04dd9b1680ae 33 #include "mbed_assert.h"
bogdanm 82:6473597d706e 34 #include "cmsis.h"
bogdanm 82:6473597d706e 35 #include "PortNames.h"
bogdanm 82:6473597d706e 36 #include "PeripheralNames.h"
bogdanm 82:6473597d706e 37 #include "PinNames.h"
bogdanm 82:6473597d706e 38
bogdanm 82:6473597d706e 39 #ifdef __cplusplus
bogdanm 82:6473597d706e 40 extern "C" {
bogdanm 82:6473597d706e 41 #endif
bogdanm 82:6473597d706e 42
bogdanm 82:6473597d706e 43 typedef struct {
bogdanm 82:6473597d706e 44 PinName pin;
bogdanm 82:6473597d706e 45 uint32_t mask;
bogdanm 82:6473597d706e 46 __IO uint32_t *reg_in;
bogdanm 82:6473597d706e 47 __IO uint16_t *reg_set;
bogdanm 82:6473597d706e 48 __IO uint16_t *reg_clr;
bogdanm 82:6473597d706e 49 } gpio_t;
bogdanm 82:6473597d706e 50
bogdanm 82:6473597d706e 51 static inline void gpio_write(gpio_t *obj, int value) {
bogdanm 86:04dd9b1680ae 52 MBED_ASSERT(obj->pin != (PinName)NC);
bogdanm 82:6473597d706e 53 if (value) {
bogdanm 82:6473597d706e 54 *obj->reg_set = obj->mask;
bogdanm 83:8a40adfe8776 55 } else {
bogdanm 82:6473597d706e 56 *obj->reg_clr = obj->mask;
bogdanm 82:6473597d706e 57 }
bogdanm 82:6473597d706e 58 }
bogdanm 82:6473597d706e 59
bogdanm 82:6473597d706e 60 static inline int gpio_read(gpio_t *obj) {
bogdanm 86:04dd9b1680ae 61 MBED_ASSERT(obj->pin != (PinName)NC);
bogdanm 82:6473597d706e 62 return ((*obj->reg_in & obj->mask) ? 1 : 0);
bogdanm 82:6473597d706e 63 }
bogdanm 82:6473597d706e 64
bogdanm 82:6473597d706e 65 #ifdef __cplusplus
bogdanm 82:6473597d706e 66 }
bogdanm 82:6473597d706e 67 #endif
bogdanm 82:6473597d706e 68
bogdanm 82:6473597d706e 69 #endif