Ricardo Benitez / mbed

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TARGET_ARCH_PRO/TARGET_NXP/TARGET_LPC176X/gpio_object.h@86:04dd9b1680ae, 2014-07-02 (annotated)

Committer:
bogdanm
Date:
Wed Jul 02 13:22:23 2014 +0100
Revision:
86:04dd9b1680ae
Parent:
85:024bf7f99721
Child:
93:e188a91d3eaa
Release 86 of the mbed library



Main changes:





- bug fixes in various backends

- mbed "error" replaced by assert logic (mbed_assert)

- new ST Nucleo targets

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 85:024bf7f99721 1 /* mbed Microcontroller Library
bogdanm 85:024bf7f99721 2 * Copyright (c) 2006-2013 ARM Limited
bogdanm 85:024bf7f99721 3 *
bogdanm 85:024bf7f99721 4 * Licensed under the Apache License, Version 2.0 (the "License");
bogdanm 85:024bf7f99721 5 * you may not use this file except in compliance with the License.
bogdanm 85:024bf7f99721 6 * You may obtain a copy of the License at
bogdanm 85:024bf7f99721 7 *
bogdanm 85:024bf7f99721 8 * http://www.apache.org/licenses/LICENSE-2.0
bogdanm 85:024bf7f99721 9 *
bogdanm 85:024bf7f99721 10 * Unless required by applicable law or agreed to in writing, software
bogdanm 85:024bf7f99721 11 * distributed under the License is distributed on an "AS IS" BASIS,
bogdanm 85:024bf7f99721 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
bogdanm 85:024bf7f99721 13 * See the License for the specific language governing permissions and
bogdanm 85:024bf7f99721 14 * limitations under the License.
bogdanm 85:024bf7f99721 15 */
bogdanm 85:024bf7f99721 16 #ifndef MBED_GPIO_OBJECT_H
bogdanm 85:024bf7f99721 17 #define MBED_GPIO_OBJECT_H
bogdanm 85:024bf7f99721 18
bogdanm 86:04dd9b1680ae 19 #include "mbed_assert.h"
bogdanm 86:04dd9b1680ae 20
bogdanm 85:024bf7f99721 21 #ifdef __cplusplus
bogdanm 85:024bf7f99721 22 extern "C" {
bogdanm 85:024bf7f99721 23 #endif
bogdanm 85:024bf7f99721 24
bogdanm 85:024bf7f99721 25 typedef struct {
bogdanm 85:024bf7f99721 26 PinName pin;
bogdanm 85:024bf7f99721 27 uint32_t mask;
bogdanm 85:024bf7f99721 28
bogdanm 85:024bf7f99721 29 __IO uint32_t *reg_dir;
bogdanm 85:024bf7f99721 30 __IO uint32_t *reg_set;
bogdanm 85:024bf7f99721 31 __IO uint32_t *reg_clr;
bogdanm 85:024bf7f99721 32 __I uint32_t *reg_in;
bogdanm 85:024bf7f99721 33 } gpio_t;
bogdanm 85:024bf7f99721 34
bogdanm 85:024bf7f99721 35 static inline void gpio_write(gpio_t *obj, int value) {
bogdanm 86:04dd9b1680ae 36 MBED_ASSERT(obj->pin != (PinName)NC);
bogdanm 85:024bf7f99721 37 if (value)
bogdanm 85:024bf7f99721 38 *obj->reg_set = obj->mask;
bogdanm 85:024bf7f99721 39 else
bogdanm 85:024bf7f99721 40 *obj->reg_clr = obj->mask;
bogdanm 85:024bf7f99721 41 }
bogdanm 85:024bf7f99721 42
bogdanm 85:024bf7f99721 43 static inline int gpio_read(gpio_t *obj) {
bogdanm 86:04dd9b1680ae 44 MBED_ASSERT(obj->pin != (PinName)NC);
bogdanm 85:024bf7f99721 45 return ((*obj->reg_in & obj->mask) ? 1 : 0);
bogdanm 85:024bf7f99721 46 }
bogdanm 85:024bf7f99721 47
bogdanm 85:024bf7f99721 48 #ifdef __cplusplus
bogdanm 85:024bf7f99721 49 }
bogdanm 85:024bf7f99721 50 #endif
bogdanm 85:024bf7f99721 51
bogdanm 85:024bf7f99721 52 #endif