Julien Kern / mbed

mbed library

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TARGET_ARCH_MAX/TARGET_STM/TARGET_STM32F407VG/gpio_object.h@89:552587b429a1, 2014-09-12 (annotated)

Committer:
bogdanm
Date:
Fri Sep 12 16:41:52 2014 +0100
Revision:
89:552587b429a1
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 89:552587b429a1 1 /* mbed Microcontroller Library
bogdanm 89:552587b429a1 2 *******************************************************************************
bogdanm 89:552587b429a1 3 * Copyright (c) 2014, STMicroelectronics
bogdanm 89:552587b429a1 4 * All rights reserved.
bogdanm 89:552587b429a1 5 *
bogdanm 89:552587b429a1 6 * Redistribution and use in source and binary forms, with or without
bogdanm 89:552587b429a1 7 * modification, are permitted provided that the following conditions are met:
bogdanm 89:552587b429a1 8 *
bogdanm 89:552587b429a1 9 * 1. Redistributions of source code must retain the above copyright notice,
bogdanm 89:552587b429a1 10 * this list of conditions and the following disclaimer.
bogdanm 89:552587b429a1 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
bogdanm 89:552587b429a1 12 * this list of conditions and the following disclaimer in the documentation
bogdanm 89:552587b429a1 13 * and/or other materials provided with the distribution.
bogdanm 89:552587b429a1 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
bogdanm 89:552587b429a1 15 * may be used to endorse or promote products derived from this software
bogdanm 89:552587b429a1 16 * without specific prior written permission.
bogdanm 89:552587b429a1 17 *
bogdanm 89:552587b429a1 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
bogdanm 89:552587b429a1 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
bogdanm 89:552587b429a1 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
bogdanm 89:552587b429a1 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
bogdanm 89:552587b429a1 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
bogdanm 89:552587b429a1 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
bogdanm 89:552587b429a1 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
bogdanm 89:552587b429a1 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
bogdanm 89:552587b429a1 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
bogdanm 89:552587b429a1 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
bogdanm 89:552587b429a1 28 *******************************************************************************
bogdanm 89:552587b429a1 29 */
bogdanm 89:552587b429a1 30 #ifndef MBED_GPIO_OBJECT_H
bogdanm 89:552587b429a1 31 #define MBED_GPIO_OBJECT_H
bogdanm 89:552587b429a1 32
bogdanm 89:552587b429a1 33 #include "mbed_assert.h"
bogdanm 89:552587b429a1 34 #include "cmsis.h"
bogdanm 89:552587b429a1 35 #include "PortNames.h"
bogdanm 89:552587b429a1 36 #include "PeripheralNames.h"
bogdanm 89:552587b429a1 37 #include "PinNames.h"
bogdanm 89:552587b429a1 38
bogdanm 89:552587b429a1 39 #ifdef __cplusplus
bogdanm 89:552587b429a1 40 extern "C" {
bogdanm 89:552587b429a1 41 #endif
bogdanm 89:552587b429a1 42
bogdanm 89:552587b429a1 43 typedef struct {
bogdanm 89:552587b429a1 44 PinName pin;
bogdanm 89:552587b429a1 45 uint32_t mask;
bogdanm 89:552587b429a1 46 __IO uint32_t *reg_in;
bogdanm 89:552587b429a1 47 __IO uint16_t *reg_set;
bogdanm 89:552587b429a1 48 __IO uint16_t *reg_clr;
bogdanm 89:552587b429a1 49 } gpio_t;
bogdanm 89:552587b429a1 50
bogdanm 89:552587b429a1 51 static inline void gpio_write(gpio_t *obj, int value) {
bogdanm 89:552587b429a1 52 MBED_ASSERT(obj->pin != (PinName)NC);
bogdanm 89:552587b429a1 53 if (value) {
bogdanm 89:552587b429a1 54 *obj->reg_set = obj->mask;
bogdanm 89:552587b429a1 55 } else {
bogdanm 89:552587b429a1 56 *obj->reg_clr = obj->mask;
bogdanm 89:552587b429a1 57 }
bogdanm 89:552587b429a1 58 }
bogdanm 89:552587b429a1 59
bogdanm 89:552587b429a1 60 static inline int gpio_read(gpio_t *obj) {
bogdanm 89:552587b429a1 61 MBED_ASSERT(obj->pin != (PinName)NC);
bogdanm 89:552587b429a1 62 return ((*obj->reg_in & obj->mask) ? 1 : 0);
bogdanm 89:552587b429a1 63 }
bogdanm 89:552587b429a1 64
bogdanm 89:552587b429a1 65 #ifdef __cplusplus
bogdanm 89:552587b429a1 66 }
bogdanm 89:552587b429a1 67 #endif
bogdanm 89:552587b429a1 68
bogdanm 89:552587b429a1 69 #endif