EL4121 Embedded System / mbed-os

mbed-os

Dependents:   cobaLCDJoyMotor_Thread odometry_omni_3roda_v3 odometry_omni_3roda_v1 odometry_omni_3roda_v2 ... more

targets/TARGET_NXP/TARGET_LPC43XX/gpio_object.h@0:b74591d5ab33, 2017-12-11 (annotated)

Committer:
be_bryan
Date:
Mon Dec 11 17:54:04 2017 +0000
Revision:
0:b74591d5ab33
motor ++

Who changed what in which revision?

UserRevisionLine numberNew contents of line
be_bryan 0:b74591d5ab33 1 /* mbed Microcontroller Library
be_bryan 0:b74591d5ab33 2 * Copyright (c) 2006-2013 ARM Limited
be_bryan 0:b74591d5ab33 3 *
be_bryan 0:b74591d5ab33 4 * Licensed under the Apache License, Version 2.0 (the "License");
be_bryan 0:b74591d5ab33 5 * you may not use this file except in compliance with the License.
be_bryan 0:b74591d5ab33 6 * You may obtain a copy of the License at
be_bryan 0:b74591d5ab33 7 *
be_bryan 0:b74591d5ab33 8 * http://www.apache.org/licenses/LICENSE-2.0
be_bryan 0:b74591d5ab33 9 *
be_bryan 0:b74591d5ab33 10 * Unless required by applicable law or agreed to in writing, software
be_bryan 0:b74591d5ab33 11 * distributed under the License is distributed on an "AS IS" BASIS,
be_bryan 0:b74591d5ab33 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
be_bryan 0:b74591d5ab33 13 * See the License for the specific language governing permissions and
be_bryan 0:b74591d5ab33 14 * limitations under the License.
be_bryan 0:b74591d5ab33 15 */
be_bryan 0:b74591d5ab33 16 #ifndef MBED_GPIO_OBJECT_H
be_bryan 0:b74591d5ab33 17 #define MBED_GPIO_OBJECT_H
be_bryan 0:b74591d5ab33 18
be_bryan 0:b74591d5ab33 19 #include "mbed_assert.h"
be_bryan 0:b74591d5ab33 20
be_bryan 0:b74591d5ab33 21 #ifdef __cplusplus
be_bryan 0:b74591d5ab33 22 extern "C" {
be_bryan 0:b74591d5ab33 23 #endif
be_bryan 0:b74591d5ab33 24
be_bryan 0:b74591d5ab33 25 typedef struct {
be_bryan 0:b74591d5ab33 26 PinName pin;
be_bryan 0:b74591d5ab33 27 uint32_t mask;
be_bryan 0:b74591d5ab33 28
be_bryan 0:b74591d5ab33 29 __IO uint32_t *reg_dir;
be_bryan 0:b74591d5ab33 30 __IO uint32_t *reg_set;
be_bryan 0:b74591d5ab33 31 __IO uint32_t *reg_clr;
be_bryan 0:b74591d5ab33 32 __I uint32_t *reg_in;
be_bryan 0:b74591d5ab33 33 } gpio_t;
be_bryan 0:b74591d5ab33 34
be_bryan 0:b74591d5ab33 35 static inline void gpio_write(gpio_t *obj, int value) {
be_bryan 0:b74591d5ab33 36 MBED_ASSERT(obj->pin != (PinName)NC);
be_bryan 0:b74591d5ab33 37 if (value)
be_bryan 0:b74591d5ab33 38 *obj->reg_set = obj->mask;
be_bryan 0:b74591d5ab33 39 else
be_bryan 0:b74591d5ab33 40 *obj->reg_clr = obj->mask;
be_bryan 0:b74591d5ab33 41 }
be_bryan 0:b74591d5ab33 42
be_bryan 0:b74591d5ab33 43 static inline int gpio_read(gpio_t *obj) {
be_bryan 0:b74591d5ab33 44 MBED_ASSERT(obj->pin != (PinName)NC);
be_bryan 0:b74591d5ab33 45 return ((*obj->reg_in & obj->mask) ? 1 : 0);
be_bryan 0:b74591d5ab33 46 }
be_bryan 0:b74591d5ab33 47
be_bryan 0:b74591d5ab33 48 static inline int gpio_is_connected(const gpio_t *obj) {
be_bryan 0:b74591d5ab33 49 return obj->pin != (PinName)NC;
be_bryan 0:b74591d5ab33 50 }
be_bryan 0:b74591d5ab33 51
be_bryan 0:b74591d5ab33 52 #ifdef __cplusplus
be_bryan 0:b74591d5ab33 53 }
be_bryan 0:b74591d5ab33 54 #endif
be_bryan 0:b74591d5ab33 55
be_bryan 0:b74591d5ab33 56 #endif