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Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.

Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.

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The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Last commit 20 Feb 2019 by mbed official

targets/hal/TARGET_NXP/TARGET_LPC11UXX/gpio_api.c@13:0645d8841f51, 2013-08-05 (annotated)

Committer:
bogdanm
Date:
Mon Aug 05 14:12:34 2013 +0300
Revision:
13:0645d8841f51
Parent:
vendor/NXP/LPC11U24/hal/gpio_api.c@10:3bc89ef62ce7
Child:
113:65a335a675de
Update mbed sources to revision 64

Who changed what in which revision?

UserRevisionLine numberNew contents of line
emilmont 10:3bc89ef62ce7 1 /* mbed Microcontroller Library
emilmont 10:3bc89ef62ce7 2 * Copyright (c) 2006-2013 ARM Limited
emilmont 10:3bc89ef62ce7 3 *
emilmont 10:3bc89ef62ce7 4 * Licensed under the Apache License, Version 2.0 (the "License");
emilmont 10:3bc89ef62ce7 5 * you may not use this file except in compliance with the License.
emilmont 10:3bc89ef62ce7 6 * You may obtain a copy of the License at
emilmont 10:3bc89ef62ce7 7 *
emilmont 10:3bc89ef62ce7 8 * http://www.apache.org/licenses/LICENSE-2.0
emilmont 10:3bc89ef62ce7 9 *
emilmont 10:3bc89ef62ce7 10 * Unless required by applicable law or agreed to in writing, software
emilmont 10:3bc89ef62ce7 11 * distributed under the License is distributed on an "AS IS" BASIS,
emilmont 10:3bc89ef62ce7 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
emilmont 10:3bc89ef62ce7 13 * See the License for the specific language governing permissions and
emilmont 10:3bc89ef62ce7 14 * limitations under the License.
emilmont 10:3bc89ef62ce7 15 */
emilmont 10:3bc89ef62ce7 16 #include "gpio_api.h"
emilmont 10:3bc89ef62ce7 17 #include "pinmap.h"
emilmont 10:3bc89ef62ce7 18
emilmont 10:3bc89ef62ce7 19 uint32_t gpio_set(PinName pin) {
emilmont 10:3bc89ef62ce7 20 int f = ((pin == P0_11) ||
emilmont 10:3bc89ef62ce7 21 (pin == P0_12) ||
emilmont 10:3bc89ef62ce7 22 (pin == P0_13) ||
emilmont 10:3bc89ef62ce7 23 (pin == P0_14)) ? (1) : (0);
emilmont 10:3bc89ef62ce7 24
emilmont 10:3bc89ef62ce7 25 pin_function(pin, f);
emilmont 10:3bc89ef62ce7 26
emilmont 10:3bc89ef62ce7 27 return (1 << ((int)pin & 0x1F));
emilmont 10:3bc89ef62ce7 28 }
emilmont 10:3bc89ef62ce7 29
emilmont 10:3bc89ef62ce7 30 void gpio_init(gpio_t *obj, PinName pin, PinDirection direction) {
emilmont 10:3bc89ef62ce7 31 if(pin == NC) return;
emilmont 10:3bc89ef62ce7 32
emilmont 10:3bc89ef62ce7 33 obj->pin = pin;
emilmont 10:3bc89ef62ce7 34 obj->mask = gpio_set(pin);
emilmont 10:3bc89ef62ce7 35
emilmont 10:3bc89ef62ce7 36 unsigned int port = (unsigned int)pin >> PORT_SHIFT;
emilmont 10:3bc89ef62ce7 37
emilmont 10:3bc89ef62ce7 38 obj->reg_set = &LPC_GPIO->SET[port];
emilmont 10:3bc89ef62ce7 39 obj->reg_clr = &LPC_GPIO->CLR[port];
emilmont 10:3bc89ef62ce7 40 obj->reg_in = &LPC_GPIO->PIN[port];
emilmont 10:3bc89ef62ce7 41 obj->reg_dir = &LPC_GPIO->DIR[port];
emilmont 10:3bc89ef62ce7 42
emilmont 10:3bc89ef62ce7 43 gpio_dir(obj, direction);
emilmont 10:3bc89ef62ce7 44 switch (direction) {
emilmont 10:3bc89ef62ce7 45 case PIN_OUTPUT: pin_mode(pin, PullNone); break;
emilmont 10:3bc89ef62ce7 46 case PIN_INPUT : pin_mode(pin, PullDown); break;
emilmont 10:3bc89ef62ce7 47 }
emilmont 10:3bc89ef62ce7 48 }
emilmont 10:3bc89ef62ce7 49
emilmont 10:3bc89ef62ce7 50 void gpio_mode(gpio_t *obj, PinMode mode) {
emilmont 10:3bc89ef62ce7 51 pin_mode(obj->pin, mode);
emilmont 10:3bc89ef62ce7 52 }
emilmont 10:3bc89ef62ce7 53
emilmont 10:3bc89ef62ce7 54 void gpio_dir(gpio_t *obj, PinDirection direction) {
emilmont 10:3bc89ef62ce7 55 switch (direction) {
emilmont 10:3bc89ef62ce7 56 case PIN_INPUT : *obj->reg_dir &= ~obj->mask; break;
emilmont 10:3bc89ef62ce7 57 case PIN_OUTPUT: *obj->reg_dir |= obj->mask; break;
emilmont 10:3bc89ef62ce7 58 }
emilmont 10:3bc89ef62ce7 59 }