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Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.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

If you are looking for a stable and tested release, please import one of the official mbed library releases:

Import librarymbed

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@463:5c73c3744533, 2015-02-03 (annotated)

Committer:
mbed_official
Date:
Tue Feb 03 17:00:07 2015 +0000
Revision:
463:5c73c3744533
Parent:
227:7bd0639b8911 
Synchronized with git revision 134a67aab259d410373367cb96b73420b390d385



Full URL: https://github.com/mbedmicro/mbed/commit/134a67aab259d410373367cb96b73420b390d385/

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 */
mbed_official 227:7bd0639b8911 16 #include "mbed_assert.h"
emilmont 10:3bc89ef62ce7 17 #include "gpio_api.h"
emilmont 10:3bc89ef62ce7 18 #include "pinmap.h"
emilmont 10:3bc89ef62ce7 19
emilmont 10:3bc89ef62ce7 20 uint32_t gpio_set(PinName pin) {
mbed_official 227:7bd0639b8911 21 MBED_ASSERT(pin != (PinName)NC);
mbed_official 207:05668db47a72 22 int f = ((pin == P0_0) ||
mbed_official 207:05668db47a72 23 (pin == P0_10) ||
mbed_official 207:05668db47a72 24 (pin == P0_11) ||
emilmont 10:3bc89ef62ce7 25 (pin == P0_12) ||
emilmont 10:3bc89ef62ce7 26 (pin == P0_13) ||
mbed_official 207:05668db47a72 27 (pin == P0_14) ||
mbed_official 207:05668db47a72 28 (pin == P0_15)) ? (1) : (0);
emilmont 10:3bc89ef62ce7 29
emilmont 10:3bc89ef62ce7 30 pin_function(pin, f);
emilmont 10:3bc89ef62ce7 31
emilmont 10:3bc89ef62ce7 32 return (1 << ((int)pin & 0x1F));
emilmont 10:3bc89ef62ce7 33 }
emilmont 10:3bc89ef62ce7 34
mbed_official 113:65a335a675de 35 void gpio_init(gpio_t *obj, PinName pin) {
mbed_official 227:7bd0639b8911 36 obj->pin = pin;
mbed_official 227:7bd0639b8911 37 if (pin == (PinName)NC)
mbed_official 227:7bd0639b8911 38 return;
emilmont 10:3bc89ef62ce7 39
emilmont 10:3bc89ef62ce7 40 obj->mask = gpio_set(pin);
emilmont 10:3bc89ef62ce7 41
emilmont 10:3bc89ef62ce7 42 unsigned int port = (unsigned int)pin >> PORT_SHIFT;
emilmont 10:3bc89ef62ce7 43
emilmont 10:3bc89ef62ce7 44 obj->reg_set = &LPC_GPIO->SET[port];
emilmont 10:3bc89ef62ce7 45 obj->reg_clr = &LPC_GPIO->CLR[port];
emilmont 10:3bc89ef62ce7 46 obj->reg_in = &LPC_GPIO->PIN[port];
emilmont 10:3bc89ef62ce7 47 obj->reg_dir = &LPC_GPIO->DIR[port];
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) {
mbed_official 227:7bd0639b8911 55 MBED_ASSERT(obj->pin != (PinName)NC);
emilmont 10:3bc89ef62ce7 56 switch (direction) {
mbed_official 227:7bd0639b8911 57 case PIN_INPUT :
mbed_official 227:7bd0639b8911 58 *obj->reg_dir &= ~obj->mask;
mbed_official 227:7bd0639b8911 59 break;
mbed_official 227:7bd0639b8911 60 case PIN_OUTPUT:
mbed_official 227:7bd0639b8911 61 *obj->reg_dir |= obj->mask;
mbed_official 227:7bd0639b8911 62 break;
emilmont 10:3bc89ef62ce7 63 }
emilmont 10:3bc89ef62ce7 64 }