Greg Steiert / maxim-dev

Maxim mbed development library

Dependents:   MAX34417_demo MAXREFDES1265 MAXREFDES1265

Fork of mbed-dev by mbed official

hal/gpio_api.h@164:2e7515f8c45d, 2017-03-24 (annotated)

Committer:
switches
Date:
Fri Mar 24 15:15:13 2017 +0000
Revision:
164:2e7515f8c45d
Parent:
149:156823d33999 
Added low level init to clear IO registers

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 149:156823d33999 1
<> 149:156823d33999 2 /** \addtogroup hal */
<> 149:156823d33999 3 /** @{*/
<> 144:ef7eb2e8f9f7 4 /* mbed Microcontroller Library
<> 144:ef7eb2e8f9f7 5 * Copyright (c) 2006-2013 ARM Limited
<> 144:ef7eb2e8f9f7 6 *
<> 144:ef7eb2e8f9f7 7 * Licensed under the Apache License, Version 2.0 (the "License");
<> 144:ef7eb2e8f9f7 8 * you may not use this file except in compliance with the License.
<> 144:ef7eb2e8f9f7 9 * You may obtain a copy of the License at
<> 144:ef7eb2e8f9f7 10 *
<> 144:ef7eb2e8f9f7 11 * http://www.apache.org/licenses/LICENSE-2.0
<> 144:ef7eb2e8f9f7 12 *
<> 144:ef7eb2e8f9f7 13 * Unless required by applicable law or agreed to in writing, software
<> 144:ef7eb2e8f9f7 14 * distributed under the License is distributed on an "AS IS" BASIS,
<> 144:ef7eb2e8f9f7 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<> 144:ef7eb2e8f9f7 16 * See the License for the specific language governing permissions and
<> 144:ef7eb2e8f9f7 17 * limitations under the License.
<> 144:ef7eb2e8f9f7 18 */
<> 144:ef7eb2e8f9f7 19 #ifndef MBED_GPIO_API_H
<> 144:ef7eb2e8f9f7 20 #define MBED_GPIO_API_H
<> 144:ef7eb2e8f9f7 21
<> 144:ef7eb2e8f9f7 22 #include <stdint.h>
<> 144:ef7eb2e8f9f7 23 #include "device.h"
<> 144:ef7eb2e8f9f7 24
<> 144:ef7eb2e8f9f7 25 #ifdef __cplusplus
<> 144:ef7eb2e8f9f7 26 extern "C" {
<> 144:ef7eb2e8f9f7 27 #endif
<> 144:ef7eb2e8f9f7 28
<> 144:ef7eb2e8f9f7 29 /**
<> 144:ef7eb2e8f9f7 30 * \defgroup hal_gpio GPIO HAL functions
<> 144:ef7eb2e8f9f7 31 * @{
<> 144:ef7eb2e8f9f7 32 */
<> 144:ef7eb2e8f9f7 33
<> 144:ef7eb2e8f9f7 34 /** Set the given pin as GPIO
<> 144:ef7eb2e8f9f7 35 *
<> 144:ef7eb2e8f9f7 36 * @param pin The pin to be set as GPIO
<> 144:ef7eb2e8f9f7 37 * @return The GPIO port mask for this pin
<> 144:ef7eb2e8f9f7 38 **/
<> 144:ef7eb2e8f9f7 39 uint32_t gpio_set(PinName pin);
<> 144:ef7eb2e8f9f7 40 /* Checks if gpio object is connected (pin was not initialized with NC)
<> 144:ef7eb2e8f9f7 41 * @param pin The pin to be set as GPIO
<> 144:ef7eb2e8f9f7 42 * @return 0 if port is initialized with NC
<> 144:ef7eb2e8f9f7 43 **/
<> 144:ef7eb2e8f9f7 44 int gpio_is_connected(const gpio_t *obj);
<> 144:ef7eb2e8f9f7 45
<> 144:ef7eb2e8f9f7 46 /** Initialize the GPIO pin
<> 144:ef7eb2e8f9f7 47 *
<> 144:ef7eb2e8f9f7 48 * @param obj The GPIO object to initialize
<> 144:ef7eb2e8f9f7 49 * @param pin The GPIO pin to initialize
<> 144:ef7eb2e8f9f7 50 */
<> 144:ef7eb2e8f9f7 51 void gpio_init(gpio_t *obj, PinName pin);
<> 144:ef7eb2e8f9f7 52
<> 144:ef7eb2e8f9f7 53 /** Set the input pin mode
<> 144:ef7eb2e8f9f7 54 *
<> 144:ef7eb2e8f9f7 55 * @param obj The GPIO object
<> 144:ef7eb2e8f9f7 56 * @param mode The pin mode to be set
<> 144:ef7eb2e8f9f7 57 */
<> 144:ef7eb2e8f9f7 58 void gpio_mode(gpio_t *obj, PinMode mode);
<> 144:ef7eb2e8f9f7 59
<> 144:ef7eb2e8f9f7 60 /** Set the pin direction
<> 144:ef7eb2e8f9f7 61 *
<> 144:ef7eb2e8f9f7 62 * @param obj The GPIO object
<> 144:ef7eb2e8f9f7 63 * @param direction The pin direction to be set
<> 144:ef7eb2e8f9f7 64 */
<> 144:ef7eb2e8f9f7 65 void gpio_dir(gpio_t *obj, PinDirection direction);
<> 144:ef7eb2e8f9f7 66
<> 144:ef7eb2e8f9f7 67 /** Set the output value
<> 144:ef7eb2e8f9f7 68 *
<> 144:ef7eb2e8f9f7 69 * @param obj The GPIO object
<> 144:ef7eb2e8f9f7 70 * @param value The value to be set
<> 144:ef7eb2e8f9f7 71 */
<> 144:ef7eb2e8f9f7 72 void gpio_write(gpio_t *obj, int value);
<> 144:ef7eb2e8f9f7 73
<> 144:ef7eb2e8f9f7 74 /** Read the input value
<> 144:ef7eb2e8f9f7 75 *
<> 144:ef7eb2e8f9f7 76 * @param obj The GPIO object
<> 144:ef7eb2e8f9f7 77 * @return An integer value 1 or 0
<> 144:ef7eb2e8f9f7 78 */
<> 144:ef7eb2e8f9f7 79 int gpio_read(gpio_t *obj);
<> 144:ef7eb2e8f9f7 80
<> 144:ef7eb2e8f9f7 81 // the following functions are generic and implemented in the common gpio.c file
<> 144:ef7eb2e8f9f7 82 // TODO: fix, will be moved to the common gpio header file
<> 144:ef7eb2e8f9f7 83
<> 144:ef7eb2e8f9f7 84 /** Init the input pin and set mode to PullDefault
<> 144:ef7eb2e8f9f7 85 *
<> 144:ef7eb2e8f9f7 86 * @param obj The GPIO object
<> 144:ef7eb2e8f9f7 87 * @param pin The pin name
<> 144:ef7eb2e8f9f7 88 */
<> 144:ef7eb2e8f9f7 89 void gpio_init_in(gpio_t* gpio, PinName pin);
<> 144:ef7eb2e8f9f7 90
<> 144:ef7eb2e8f9f7 91 /** Init the input pin and set the mode
<> 144:ef7eb2e8f9f7 92 *
<> 144:ef7eb2e8f9f7 93 * @param obj The GPIO object
<> 144:ef7eb2e8f9f7 94 * @param pin The pin name
<> 144:ef7eb2e8f9f7 95 * @param mode The pin mode to be set
<> 144:ef7eb2e8f9f7 96 */
<> 144:ef7eb2e8f9f7 97 void gpio_init_in_ex(gpio_t* gpio, PinName pin, PinMode mode);
<> 144:ef7eb2e8f9f7 98
<> 144:ef7eb2e8f9f7 99 /** Init the output pin as an output, with predefined output value 0
<> 144:ef7eb2e8f9f7 100 *
<> 144:ef7eb2e8f9f7 101 * @param obj The GPIO object
<> 144:ef7eb2e8f9f7 102 * @param pin The pin name
<> 144:ef7eb2e8f9f7 103 * @return An integer value 1 or 0
<> 144:ef7eb2e8f9f7 104 */
<> 144:ef7eb2e8f9f7 105 void gpio_init_out(gpio_t* gpio, PinName pin);
<> 144:ef7eb2e8f9f7 106
<> 144:ef7eb2e8f9f7 107 /** Init the pin as an output and set the output value
<> 144:ef7eb2e8f9f7 108 *
<> 144:ef7eb2e8f9f7 109 * @param obj The GPIO object
<> 144:ef7eb2e8f9f7 110 * @param pin The pin name
<> 144:ef7eb2e8f9f7 111 * @param value The value to be set
<> 144:ef7eb2e8f9f7 112 */
<> 144:ef7eb2e8f9f7 113 void gpio_init_out_ex(gpio_t* gpio, PinName pin, int value);
<> 144:ef7eb2e8f9f7 114
<> 144:ef7eb2e8f9f7 115 /** Init the pin to be in/out
<> 144:ef7eb2e8f9f7 116 *
<> 144:ef7eb2e8f9f7 117 * @param obj The GPIO object
<> 144:ef7eb2e8f9f7 118 * @param pin The pin name
<> 144:ef7eb2e8f9f7 119 * @param direction The pin direction to be set
<> 144:ef7eb2e8f9f7 120 * @param mode The pin mode to be set
<> 144:ef7eb2e8f9f7 121 * @param value The value to be set for an output pin
<> 144:ef7eb2e8f9f7 122 */
<> 144:ef7eb2e8f9f7 123 void gpio_init_inout(gpio_t* gpio, PinName pin, PinDirection direction, PinMode mode, int value);
<> 144:ef7eb2e8f9f7 124
<> 144:ef7eb2e8f9f7 125 /**@}*/
<> 144:ef7eb2e8f9f7 126
<> 144:ef7eb2e8f9f7 127 #ifdef __cplusplus
<> 144:ef7eb2e8f9f7 128 }
<> 144:ef7eb2e8f9f7 129 #endif
<> 144:ef7eb2e8f9f7 130
<> 144:ef7eb2e8f9f7 131 #endif
<> 149:156823d33999 132
<> 149:156823d33999 133 /** @}*/