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The official mbed C/C SDK provides the software platform and libraries to build your applications.

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LPC1768/gpio_object.h@54:71b101360fb9, 2013-01-08 (annotated)

Committer:
emilmont
Date:
Tue Jan 08 12:46:36 2013 +0000
Revision:
54:71b101360fb9
Parent:
44:24d45a770a51
Child:
55:d722ed6a4237
Support "stream as file" use case

Unify binary libraries

Update copyright

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 44:24d45a770a51 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
emilmont 44:24d45a770a51 5 * of this software and associated documentation files (the "Software"), to deal
emilmont 44:24d45a770a51 6 * in the Software without restriction, including without limitation the rights
emilmont 44:24d45a770a51 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
emilmont 44:24d45a770a51 8 * copies of the Software, and to permit persons to whom the Software is
emilmont 44:24d45a770a51 9 * furnished to do so, subject to the following conditions:
emilmont 44:24d45a770a51 10 *
emilmont 44:24d45a770a51 11 * The above copyright notice and this permission notice shall be included in
emilmont 44:24d45a770a51 12 * all copies or substantial portions of the Software.
emilmont 44:24d45a770a51 13 *
emilmont 44:24d45a770a51 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
emilmont 44:24d45a770a51 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
emilmont 44:24d45a770a51 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
emilmont 44:24d45a770a51 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
emilmont 44:24d45a770a51 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
emilmont 44:24d45a770a51 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
emilmont 44:24d45a770a51 20 * SOFTWARE.
emilmont 44:24d45a770a51 21 */
emilmont 44:24d45a770a51 22 #ifndef MBED_GPIO_OBJECT_H
emilmont 44:24d45a770a51 23 #define MBED_GPIO_OBJECT_H
emilmont 44:24d45a770a51 24
emilmont 44:24d45a770a51 25 #ifdef __cplusplus
emilmont 44:24d45a770a51 26 extern "C" {
emilmont 44:24d45a770a51 27 #endif
emilmont 44:24d45a770a51 28
emilmont 44:24d45a770a51 29 typedef struct {
emilmont 44:24d45a770a51 30 PinName pin;
emilmont 44:24d45a770a51 31 uint32_t mask;
emilmont 44:24d45a770a51 32
emilmont 44:24d45a770a51 33 __IO uint32_t *reg_dir;
emilmont 44:24d45a770a51 34 __IO uint32_t *reg_set;
emilmont 44:24d45a770a51 35 __IO uint32_t *reg_clr;
emilmont 44:24d45a770a51 36 __I uint32_t *reg_in;
emilmont 44:24d45a770a51 37 } gpio_t;
emilmont 44:24d45a770a51 38
emilmont 44:24d45a770a51 39 static inline void gpio_write(gpio_t *obj, int value) {
emilmont 44:24d45a770a51 40 if (value)
emilmont 44:24d45a770a51 41 *obj->reg_set = obj->mask;
emilmont 44:24d45a770a51 42 else
emilmont 44:24d45a770a51 43 *obj->reg_clr = obj->mask;
emilmont 44:24d45a770a51 44 }
emilmont 44:24d45a770a51 45
emilmont 44:24d45a770a51 46 static inline int gpio_read(gpio_t *obj) {
emilmont 44:24d45a770a51 47 return ((*obj->reg_in & obj->mask) ? 1 : 0);
emilmont 44:24d45a770a51 48 }
emilmont 44:24d45a770a51 49
emilmont 44:24d45a770a51 50 #ifdef __cplusplus
emilmont 44:24d45a770a51 51 }
emilmont 44:24d45a770a51 52 #endif
emilmont 44:24d45a770a51 53
emilmont 44:24d45a770a51 54 #endif