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mbed library sources

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Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.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_LPC2460/gpio_api.c@621:9c82b0f79f3d, 2015-09-11 (annotated)

Committer:
mbed_official
Date:
Fri Sep 11 09:30:09 2015 +0100
Revision:
621:9c82b0f79f3d
Parent:
554:edd95c0879f8 
Synchronized with git revision 6c1d63e069ab9bd86de92e8296ca783681257538



Full URL: https://github.com/mbedmicro/mbed/commit/6c1d63e069ab9bd86de92e8296ca783681257538/



ignore target files not supported by the yotta module

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 554:edd95c0879f8 1 /* mbed Microcontroller Library
mbed_official 554:edd95c0879f8 2 * Copyright (c) 2006-2015 ARM Limited
mbed_official 554:edd95c0879f8 3 *
mbed_official 554:edd95c0879f8 4 * Licensed under the Apache License, Version 2.0 (the "License");
mbed_official 554:edd95c0879f8 5 * you may not use this file except in compliance with the License.
mbed_official 554:edd95c0879f8 6 * You may obtain a copy of the License at
mbed_official 554:edd95c0879f8 7 *
mbed_official 554:edd95c0879f8 8 * http://www.apache.org/licenses/LICENSE-2.0
mbed_official 554:edd95c0879f8 9 *
mbed_official 554:edd95c0879f8 10 * Unless required by applicable law or agreed to in writing, software
mbed_official 554:edd95c0879f8 11 * distributed under the License is distributed on an "AS IS" BASIS,
mbed_official 554:edd95c0879f8 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbed_official 554:edd95c0879f8 13 * See the License for the specific language governing permissions and
mbed_official 554:edd95c0879f8 14 * limitations under the License.
mbed_official 554:edd95c0879f8 15 */
mbed_official 554:edd95c0879f8 16 #include "mbed_assert.h"
mbed_official 554:edd95c0879f8 17 #include "gpio_api.h"
mbed_official 554:edd95c0879f8 18 #include "pinmap.h"
mbed_official 554:edd95c0879f8 19
mbed_official 554:edd95c0879f8 20 uint32_t gpio_set(PinName pin) {
mbed_official 554:edd95c0879f8 21 LPC_SC->SCS |= 1; // High speed GPIO is enabled on ports 0 and 1
mbed_official 554:edd95c0879f8 22
mbed_official 554:edd95c0879f8 23 pin_function(pin, 0);
mbed_official 554:edd95c0879f8 24
mbed_official 554:edd95c0879f8 25 return (1 << ((int)pin & 0x1F));
mbed_official 554:edd95c0879f8 26 }
mbed_official 554:edd95c0879f8 27
mbed_official 554:edd95c0879f8 28 void gpio_init(gpio_t *obj, PinName pin) {
mbed_official 554:edd95c0879f8 29 if (pin == (PinName)NC)
mbed_official 554:edd95c0879f8 30 return;
mbed_official 554:edd95c0879f8 31 obj->pin = pin;
mbed_official 554:edd95c0879f8 32 if (pin == (PinName)NC)
mbed_official 554:edd95c0879f8 33 return;
mbed_official 554:edd95c0879f8 34
mbed_official 554:edd95c0879f8 35 obj->mask = gpio_set(pin);
mbed_official 554:edd95c0879f8 36
mbed_official 554:edd95c0879f8 37 LPC_GPIO_TypeDef *port_reg = (LPC_GPIO_TypeDef *) ((int)pin & ~0x1F);
mbed_official 554:edd95c0879f8 38
mbed_official 554:edd95c0879f8 39 obj->reg_set = &port_reg->FIOSET;
mbed_official 554:edd95c0879f8 40 obj->reg_mask = &port_reg->FIOMASK;
mbed_official 554:edd95c0879f8 41 obj->reg_clr = &port_reg->FIOCLR;
mbed_official 554:edd95c0879f8 42 obj->reg_in = &port_reg->FIOPIN;
mbed_official 554:edd95c0879f8 43 obj->reg_dir = &port_reg->FIODIR;
mbed_official 554:edd95c0879f8 44 }
mbed_official 554:edd95c0879f8 45
mbed_official 554:edd95c0879f8 46 void gpio_mode(gpio_t *obj, PinMode mode) {
mbed_official 554:edd95c0879f8 47 pin_mode(obj->pin, mode);
mbed_official 554:edd95c0879f8 48 }
mbed_official 554:edd95c0879f8 49
mbed_official 554:edd95c0879f8 50 void gpio_dir(gpio_t *obj, PinDirection direction) {
mbed_official 554:edd95c0879f8 51 if (obj->pin == (PinName)NC)
mbed_official 554:edd95c0879f8 52 return;
mbed_official 554:edd95c0879f8 53 switch (direction) {
mbed_official 554:edd95c0879f8 54 case PIN_INPUT : *obj->reg_dir &= ~obj->mask; break;
mbed_official 554:edd95c0879f8 55 case PIN_OUTPUT: *obj->reg_dir |= obj->mask; break;
mbed_official 554:edd95c0879f8 56 }
mbed_official 554:edd95c0879f8 57 }