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targets/hal/TARGET_NXP/TARGET_LPC11XX_11CXX/gpio_object.h@349:591ef4b19797, 2014-10-23 (annotated)

Committer:
bparrott
Date:
Thu Oct 23 10:10:42 2014 +0000
Revision:
349:591ef4b19797
Parent:
227:7bd0639b8911 
This changes the timer used at the core of MBED from Timer 3 to Timer 0. This allows for the use of external pins with both Timer 2 and 3.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 30:91c1d09ada54 1 /* mbed Microcontroller Library
mbed_official 30:91c1d09ada54 2 * Copyright (c) 2006-2013 ARM Limited
mbed_official 30:91c1d09ada54 3 *
mbed_official 30:91c1d09ada54 4 * Licensed under the Apache License, Version 2.0 (the "License");
mbed_official 30:91c1d09ada54 5 * you may not use this file except in compliance with the License.
mbed_official 30:91c1d09ada54 6 * You may obtain a copy of the License at
mbed_official 30:91c1d09ada54 7 *
mbed_official 30:91c1d09ada54 8 * http://www.apache.org/licenses/LICENSE-2.0
mbed_official 30:91c1d09ada54 9 *
mbed_official 30:91c1d09ada54 10 * Unless required by applicable law or agreed to in writing, software
mbed_official 30:91c1d09ada54 11 * distributed under the License is distributed on an "AS IS" BASIS,
mbed_official 30:91c1d09ada54 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbed_official 30:91c1d09ada54 13 * See the License for the specific language governing permissions and
mbed_official 30:91c1d09ada54 14 * limitations under the License.
mbed_official 30:91c1d09ada54 15 */
mbed_official 30:91c1d09ada54 16 #ifndef MBED_GPIO_OBJECT_H
mbed_official 30:91c1d09ada54 17 #define MBED_GPIO_OBJECT_H
mbed_official 30:91c1d09ada54 18
mbed_official 227:7bd0639b8911 19 #include "mbed_assert.h"
mbed_official 227:7bd0639b8911 20
mbed_official 30:91c1d09ada54 21 #ifdef __cplusplus
mbed_official 30:91c1d09ada54 22 extern "C" {
mbed_official 30:91c1d09ada54 23 #endif
mbed_official 30:91c1d09ada54 24
mbed_official 30:91c1d09ada54 25 typedef struct {
mbed_official 30:91c1d09ada54 26 PinName pin;
mbed_official 30:91c1d09ada54 27 __I uint32_t *reg_mask_read;
mbed_official 30:91c1d09ada54 28 __IO uint32_t *reg_dir;
mbed_official 30:91c1d09ada54 29 __IO uint32_t *reg_write;
mbed_official 30:91c1d09ada54 30 } gpio_t;
mbed_official 30:91c1d09ada54 31
mbed_official 30:91c1d09ada54 32 static inline void gpio_write(gpio_t *obj, int value) {
mbed_official 227:7bd0639b8911 33 MBED_ASSERT(obj->pin != (PinName)NC);
mbed_official 30:91c1d09ada54 34 uint32_t pin_number = ((obj->pin & 0x0F00) >> 8);
mbed_official 30:91c1d09ada54 35 if (value)
mbed_official 30:91c1d09ada54 36 *obj->reg_write |= (1 << pin_number);
mbed_official 30:91c1d09ada54 37 else
mbed_official 30:91c1d09ada54 38 *obj->reg_write &= ~(1 << pin_number);
mbed_official 30:91c1d09ada54 39 }
mbed_official 30:91c1d09ada54 40
mbed_official 30:91c1d09ada54 41 static inline int gpio_read(gpio_t *obj) {
mbed_official 227:7bd0639b8911 42 MBED_ASSERT(obj->pin != (PinName)NC);
mbed_official 30:91c1d09ada54 43 return ((*obj->reg_mask_read) ? 1 : 0);
mbed_official 30:91c1d09ada54 44 }
mbed_official 30:91c1d09ada54 45
mbed_official 30:91c1d09ada54 46 #ifdef __cplusplus
mbed_official 30:91c1d09ada54 47 }
mbed_official 30:91c1d09ada54 48 #endif
mbed_official 30:91c1d09ada54 49
mbed_official 30:91c1d09ada54 50 #endif