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LPC1768/gpio_object.h@64:75c1708b266b, 2013-07-05 (annotated)

Committer:
ldyz
Date:
Fri Jul 05 13:16:13 2013 +0000
Revision:
64:75c1708b266b
Parent:
59:0883845fe643 
test

Who changed what in which revision?

UserRevisionLine numberNew contents of line
emilmont 44:24d45a770a51 1 /* mbed Microcontroller Library
emilmont 54:71b101360fb9 2 * Copyright (c) 2006-2013 ARM Limited
emilmont 44:24d45a770a51 3 *
emilmont 59:0883845fe643 4 * Licensed under the Apache License, Version 2.0 (the "License");
emilmont 59:0883845fe643 5 * you may not use this file except in compliance with the License.
emilmont 59:0883845fe643 6 * You may obtain a copy of the License at
emilmont 59:0883845fe643 7 *
emilmont 59:0883845fe643 8 * http://www.apache.org/licenses/LICENSE-2.0
emilmont 44:24d45a770a51 9 *
emilmont 59:0883845fe643 10 * Unless required by applicable law or agreed to in writing, software
emilmont 59:0883845fe643 11 * distributed under the License is distributed on an "AS IS" BASIS,
emilmont 59:0883845fe643 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
emilmont 59:0883845fe643 13 * See the License for the specific language governing permissions and
emilmont 59:0883845fe643 14 * limitations under the License.
emilmont 44:24d45a770a51 15 */
emilmont 44:24d45a770a51 16 #ifndef MBED_GPIO_OBJECT_H
emilmont 44:24d45a770a51 17 #define MBED_GPIO_OBJECT_H
emilmont 44:24d45a770a51 18
emilmont 44:24d45a770a51 19 #ifdef __cplusplus
emilmont 44:24d45a770a51 20 extern "C" {
emilmont 44:24d45a770a51 21 #endif
emilmont 44:24d45a770a51 22
emilmont 44:24d45a770a51 23 typedef struct {
emilmont 44:24d45a770a51 24 PinName pin;
emilmont 44:24d45a770a51 25 uint32_t mask;
emilmont 55:d722ed6a4237 26
emilmont 44:24d45a770a51 27 __IO uint32_t *reg_dir;
emilmont 44:24d45a770a51 28 __IO uint32_t *reg_set;
emilmont 44:24d45a770a51 29 __IO uint32_t *reg_clr;
emilmont 44:24d45a770a51 30 __I uint32_t *reg_in;
emilmont 44:24d45a770a51 31 } gpio_t;
emilmont 44:24d45a770a51 32
emilmont 44:24d45a770a51 33 static inline void gpio_write(gpio_t *obj, int value) {
emilmont 44:24d45a770a51 34 if (value)
emilmont 44:24d45a770a51 35 *obj->reg_set = obj->mask;
emilmont 44:24d45a770a51 36 else
emilmont 44:24d45a770a51 37 *obj->reg_clr = obj->mask;
emilmont 44:24d45a770a51 38 }
emilmont 44:24d45a770a51 39
emilmont 44:24d45a770a51 40 static inline int gpio_read(gpio_t *obj) {
emilmont 44:24d45a770a51 41 return ((*obj->reg_in & obj->mask) ? 1 : 0);
emilmont 44:24d45a770a51 42 }
emilmont 44:24d45a770a51 43
emilmont 44:24d45a770a51 44 #ifdef __cplusplus
emilmont 44:24d45a770a51 45 }
emilmont 44:24d45a770a51 46 #endif
emilmont 44:24d45a770a51 47
emilmont 44:24d45a770a51 48 #endif