Renato Grottesi / mbed-dev-bin

Microbit as a BLE gamepad

Dependents:   microbit-dal

Fork of mbed-dev-bin by Lancaster University

TARGET_NRF51_MICROBIT/TARGET_NORDIC/TARGET_MCU_NRF51822/gpio_object.h@4:bb4b3734941b, 2017-01-30 (annotated)

Committer:
rengro01
Date:
Mon Jan 30 08:23:23 2017 +0000
Revision:
4:bb4b3734941b
Parent:
0:e1a608bb55e8 
Microbit as a BLE gamepad

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jamesadevine 0:e1a608bb55e8 1 /* mbed Microcontroller Library
jamesadevine 0:e1a608bb55e8 2 * Copyright (c) 2006-2013 ARM Limited
jamesadevine 0:e1a608bb55e8 3 *
jamesadevine 0:e1a608bb55e8 4 * Licensed under the Apache License, Version 2.0 (the "License");
jamesadevine 0:e1a608bb55e8 5 * you may not use this file except in compliance with the License.
jamesadevine 0:e1a608bb55e8 6 * You may obtain a copy of the License at
jamesadevine 0:e1a608bb55e8 7 *
jamesadevine 0:e1a608bb55e8 8 * http://www.apache.org/licenses/LICENSE-2.0
jamesadevine 0:e1a608bb55e8 9 *
jamesadevine 0:e1a608bb55e8 10 * Unless required by applicable law or agreed to in writing, software
jamesadevine 0:e1a608bb55e8 11 * distributed under the License is distributed on an "AS IS" BASIS,
jamesadevine 0:e1a608bb55e8 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
jamesadevine 0:e1a608bb55e8 13 * See the License for the specific language governing permissions and
jamesadevine 0:e1a608bb55e8 14 * limitations under the License.
jamesadevine 0:e1a608bb55e8 15 */
jamesadevine 0:e1a608bb55e8 16 #ifndef MBED_GPIO_OBJECT_H
jamesadevine 0:e1a608bb55e8 17 #define MBED_GPIO_OBJECT_H
jamesadevine 0:e1a608bb55e8 18
jamesadevine 0:e1a608bb55e8 19 #include "mbed_assert.h"
jamesadevine 0:e1a608bb55e8 20
jamesadevine 0:e1a608bb55e8 21 #ifdef __cplusplus
jamesadevine 0:e1a608bb55e8 22 extern "C" {
jamesadevine 0:e1a608bb55e8 23 #endif
jamesadevine 0:e1a608bb55e8 24
jamesadevine 0:e1a608bb55e8 25 typedef struct {
jamesadevine 0:e1a608bb55e8 26 PinName pin;
jamesadevine 0:e1a608bb55e8 27 uint32_t mask;
jamesadevine 0:e1a608bb55e8 28
jamesadevine 0:e1a608bb55e8 29 __IO uint32_t *reg_dir;
jamesadevine 0:e1a608bb55e8 30 __IO uint32_t *reg_set;
jamesadevine 0:e1a608bb55e8 31 __IO uint32_t *reg_clr;
jamesadevine 0:e1a608bb55e8 32 __I uint32_t *reg_in;
jamesadevine 0:e1a608bb55e8 33 } gpio_t;
jamesadevine 0:e1a608bb55e8 34
jamesadevine 0:e1a608bb55e8 35 static inline void gpio_write(gpio_t *obj, int value) {
jamesadevine 0:e1a608bb55e8 36 MBED_ASSERT(obj->pin != (PinName)NC);
jamesadevine 0:e1a608bb55e8 37 if (value)
jamesadevine 0:e1a608bb55e8 38 *obj->reg_set = obj->mask;
jamesadevine 0:e1a608bb55e8 39 else
jamesadevine 0:e1a608bb55e8 40 *obj->reg_clr = obj->mask;
jamesadevine 0:e1a608bb55e8 41 }
jamesadevine 0:e1a608bb55e8 42
jamesadevine 0:e1a608bb55e8 43 static inline int gpio_read(gpio_t *obj) {
jamesadevine 0:e1a608bb55e8 44 MBED_ASSERT(obj->pin != (PinName)NC);
jamesadevine 0:e1a608bb55e8 45 return ((*obj->reg_in & obj->mask) ? 1 : 0);
jamesadevine 0:e1a608bb55e8 46 }
jamesadevine 0:e1a608bb55e8 47
jamesadevine 0:e1a608bb55e8 48 static inline int gpio_is_connected(const gpio_t *obj) {
jamesadevine 0:e1a608bb55e8 49 return obj->pin != (PinName)NC;
jamesadevine 0:e1a608bb55e8 50 }
jamesadevine 0:e1a608bb55e8 51
jamesadevine 0:e1a608bb55e8 52 #ifdef __cplusplus
jamesadevine 0:e1a608bb55e8 53 }
jamesadevine 0:e1a608bb55e8 54 #endif
jamesadevine 0:e1a608bb55e8 55
jamesadevine 0:e1a608bb55e8 56 #endif