Ermanno Brusadin / mbed

mbed library sources

Dependents:   FRDM-KL46Z_LCD_Test FRDM-KL46Z_LCD_Test FRDM-KL46Z_Plantilla FRDM-KL46Z_Plantilla ... more

targets/hal/TARGET_STM/TARGET_NUCLEO_F411RE/gpio_object.h@0:6bc4ac881c8e, 2016-07-28 (annotated)

Committer:
ebrus
Date:
Thu Jul 28 15:56:34 2016 +0000
Revision:
0:6bc4ac881c8e
1;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ebrus 0:6bc4ac881c8e 1 /* mbed Microcontroller Library
ebrus 0:6bc4ac881c8e 2 *******************************************************************************
ebrus 0:6bc4ac881c8e 3 * Copyright (c) 2014, STMicroelectronics
ebrus 0:6bc4ac881c8e 4 * All rights reserved.
ebrus 0:6bc4ac881c8e 5 *
ebrus 0:6bc4ac881c8e 6 * Redistribution and use in source and binary forms, with or without
ebrus 0:6bc4ac881c8e 7 * modification, are permitted provided that the following conditions are met:
ebrus 0:6bc4ac881c8e 8 *
ebrus 0:6bc4ac881c8e 9 * 1. Redistributions of source code must retain the above copyright notice,
ebrus 0:6bc4ac881c8e 10 * this list of conditions and the following disclaimer.
ebrus 0:6bc4ac881c8e 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
ebrus 0:6bc4ac881c8e 12 * this list of conditions and the following disclaimer in the documentation
ebrus 0:6bc4ac881c8e 13 * and/or other materials provided with the distribution.
ebrus 0:6bc4ac881c8e 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
ebrus 0:6bc4ac881c8e 15 * may be used to endorse or promote products derived from this software
ebrus 0:6bc4ac881c8e 16 * without specific prior written permission.
ebrus 0:6bc4ac881c8e 17 *
ebrus 0:6bc4ac881c8e 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
ebrus 0:6bc4ac881c8e 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
ebrus 0:6bc4ac881c8e 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
ebrus 0:6bc4ac881c8e 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
ebrus 0:6bc4ac881c8e 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
ebrus 0:6bc4ac881c8e 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
ebrus 0:6bc4ac881c8e 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
ebrus 0:6bc4ac881c8e 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
ebrus 0:6bc4ac881c8e 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
ebrus 0:6bc4ac881c8e 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
ebrus 0:6bc4ac881c8e 28 *******************************************************************************
ebrus 0:6bc4ac881c8e 29 */
ebrus 0:6bc4ac881c8e 30 #ifndef MBED_GPIO_OBJECT_H
ebrus 0:6bc4ac881c8e 31 #define MBED_GPIO_OBJECT_H
ebrus 0:6bc4ac881c8e 32
ebrus 0:6bc4ac881c8e 33 #include "mbed_assert.h"
ebrus 0:6bc4ac881c8e 34 #include "cmsis.h"
ebrus 0:6bc4ac881c8e 35 #include "PortNames.h"
ebrus 0:6bc4ac881c8e 36 #include "PeripheralNames.h"
ebrus 0:6bc4ac881c8e 37 #include "PinNames.h"
ebrus 0:6bc4ac881c8e 38
ebrus 0:6bc4ac881c8e 39 #ifdef __cplusplus
ebrus 0:6bc4ac881c8e 40 extern "C" {
ebrus 0:6bc4ac881c8e 41 #endif
ebrus 0:6bc4ac881c8e 42
ebrus 0:6bc4ac881c8e 43 typedef struct {
ebrus 0:6bc4ac881c8e 44 PinName pin;
ebrus 0:6bc4ac881c8e 45 uint32_t mask;
ebrus 0:6bc4ac881c8e 46 __IO uint32_t *reg_in;
ebrus 0:6bc4ac881c8e 47 __IO uint16_t *reg_set;
ebrus 0:6bc4ac881c8e 48 __IO uint16_t *reg_clr;
ebrus 0:6bc4ac881c8e 49 } gpio_t;
ebrus 0:6bc4ac881c8e 50
ebrus 0:6bc4ac881c8e 51 static inline void gpio_write(gpio_t *obj, int value)
ebrus 0:6bc4ac881c8e 52 {
ebrus 0:6bc4ac881c8e 53 MBED_ASSERT(obj->pin != (PinName)NC);
ebrus 0:6bc4ac881c8e 54 if (value) {
ebrus 0:6bc4ac881c8e 55 *obj->reg_set = obj->mask;
ebrus 0:6bc4ac881c8e 56 } else {
ebrus 0:6bc4ac881c8e 57 *obj->reg_clr = obj->mask;
ebrus 0:6bc4ac881c8e 58 }
ebrus 0:6bc4ac881c8e 59 }
ebrus 0:6bc4ac881c8e 60
ebrus 0:6bc4ac881c8e 61 static inline int gpio_read(gpio_t *obj)
ebrus 0:6bc4ac881c8e 62 {
ebrus 0:6bc4ac881c8e 63 MBED_ASSERT(obj->pin != (PinName)NC);
ebrus 0:6bc4ac881c8e 64 return ((*obj->reg_in & obj->mask) ? 1 : 0);
ebrus 0:6bc4ac881c8e 65 }
ebrus 0:6bc4ac881c8e 66
ebrus 0:6bc4ac881c8e 67 #ifdef __cplusplus
ebrus 0:6bc4ac881c8e 68 }
ebrus 0:6bc4ac881c8e 69 #endif
ebrus 0:6bc4ac881c8e 70
ebrus 0:6bc4ac881c8e 71 #endif