lzbp li / mbed-src

mbed library sources

Fork of mbed-src by mbed official

targets/hal/TARGET_Freescale/TARGET_KLXX/gpio_api.c@113:65a335a675de, 2014-03-10 (annotated)

Committer:
mbed_official
Date:
Mon Mar 10 11:30:07 2014 +0000
Revision:
113:65a335a675de
Parent:
82:0b31dbcd4769
Child:
227:7bd0639b8911
Synchronized with git revision 423ddcb86e83e2e0d599ca7106d436eb3c47e6dd



Full URL: https://github.com/mbedmicro/mbed/commit/423ddcb86e83e2e0d599ca7106d436eb3c47e6dd/



proposed change of gpio_api (new update pull request)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 82:0b31dbcd4769 1 /* mbed Microcontroller Library
mbed_official 82:0b31dbcd4769 2 * Copyright (c) 2006-2013 ARM Limited
mbed_official 82:0b31dbcd4769 3 *
mbed_official 82:0b31dbcd4769 4 * Licensed under the Apache License, Version 2.0 (the "License");
mbed_official 82:0b31dbcd4769 5 * you may not use this file except in compliance with the License.
mbed_official 82:0b31dbcd4769 6 * You may obtain a copy of the License at
mbed_official 82:0b31dbcd4769 7 *
mbed_official 82:0b31dbcd4769 8 * http://www.apache.org/licenses/LICENSE-2.0
mbed_official 82:0b31dbcd4769 9 *
mbed_official 82:0b31dbcd4769 10 * Unless required by applicable law or agreed to in writing, software
mbed_official 82:0b31dbcd4769 11 * distributed under the License is distributed on an "AS IS" BASIS,
mbed_official 82:0b31dbcd4769 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbed_official 82:0b31dbcd4769 13 * See the License for the specific language governing permissions and
mbed_official 82:0b31dbcd4769 14 * limitations under the License.
mbed_official 82:0b31dbcd4769 15 */
mbed_official 82:0b31dbcd4769 16 #include "gpio_api.h"
mbed_official 82:0b31dbcd4769 17 #include "pinmap.h"
mbed_official 82:0b31dbcd4769 18
mbed_official 82:0b31dbcd4769 19 uint32_t gpio_set(PinName pin) {
mbed_official 82:0b31dbcd4769 20 pin_function(pin, 1);
mbed_official 82:0b31dbcd4769 21 return 1 << ((pin & 0x7F) >> 2);
mbed_official 82:0b31dbcd4769 22 }
mbed_official 82:0b31dbcd4769 23
mbed_official 113:65a335a675de 24 void gpio_init(gpio_t *obj, PinName pin) {
mbed_official 82:0b31dbcd4769 25 if(pin == (PinName)NC) return;
mbed_official 82:0b31dbcd4769 26
mbed_official 82:0b31dbcd4769 27 obj->pin = pin;
mbed_official 82:0b31dbcd4769 28 obj->mask = gpio_set(pin);
mbed_official 82:0b31dbcd4769 29
mbed_official 82:0b31dbcd4769 30 unsigned int port = (unsigned int)pin >> PORT_SHIFT;
mbed_official 82:0b31dbcd4769 31
mbed_official 82:0b31dbcd4769 32 FGPIO_Type *reg = (FGPIO_Type *)(FPTA_BASE + port * 0x40);
mbed_official 82:0b31dbcd4769 33 obj->reg_set = &reg->PSOR;
mbed_official 82:0b31dbcd4769 34 obj->reg_clr = &reg->PCOR;
mbed_official 82:0b31dbcd4769 35 obj->reg_in = &reg->PDIR;
mbed_official 82:0b31dbcd4769 36 obj->reg_dir = &reg->PDDR;
mbed_official 82:0b31dbcd4769 37 }
mbed_official 82:0b31dbcd4769 38
mbed_official 82:0b31dbcd4769 39 void gpio_mode(gpio_t *obj, PinMode mode) {
mbed_official 82:0b31dbcd4769 40 pin_mode(obj->pin, mode);
mbed_official 82:0b31dbcd4769 41 }
mbed_official 82:0b31dbcd4769 42
mbed_official 82:0b31dbcd4769 43 void gpio_dir(gpio_t *obj, PinDirection direction) {
mbed_official 82:0b31dbcd4769 44 switch (direction) {
mbed_official 82:0b31dbcd4769 45 case PIN_INPUT : *obj->reg_dir &= ~obj->mask; break;
mbed_official 82:0b31dbcd4769 46 case PIN_OUTPUT: *obj->reg_dir |= obj->mask; break;
mbed_official 82:0b31dbcd4769 47 }
mbed_official 82:0b31dbcd4769 48 }