lzbp li / mbed-src

mbed library sources

Fork of mbed-src by mbed official

targets/hal/TARGET_Freescale/TARGET_KLXX/gpio_api.c@636:b0d178e9fa10, 2016-07-07 (annotated)

Committer:
lzbpli
Date:
Thu Jul 07 06:48:59 2016 +0000
Revision:
636:b0d178e9fa10
Parent:
363:12a245e5c745 
l053

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 227:7bd0639b8911 16 #include "mbed_assert.h"
mbed_official 82:0b31dbcd4769 17 #include "gpio_api.h"
mbed_official 82:0b31dbcd4769 18 #include "pinmap.h"
mbed_official 82:0b31dbcd4769 19
mbed_official 82:0b31dbcd4769 20 uint32_t gpio_set(PinName pin) {
mbed_official 227:7bd0639b8911 21 MBED_ASSERT(pin != (PinName)NC);
mbed_official 82:0b31dbcd4769 22 pin_function(pin, 1);
mbed_official 82:0b31dbcd4769 23 return 1 << ((pin & 0x7F) >> 2);
mbed_official 82:0b31dbcd4769 24 }
mbed_official 82:0b31dbcd4769 25
mbed_official 113:65a335a675de 26 void gpio_init(gpio_t *obj, PinName pin) {
mbed_official 227:7bd0639b8911 27 obj->pin = pin;
mbed_official 227:7bd0639b8911 28 if (pin == (PinName)NC)
mbed_official 227:7bd0639b8911 29 return;
mbed_official 82:0b31dbcd4769 30
mbed_official 82:0b31dbcd4769 31 obj->mask = gpio_set(pin);
mbed_official 82:0b31dbcd4769 32
mbed_official 82:0b31dbcd4769 33 unsigned int port = (unsigned int)pin >> PORT_SHIFT;
mbed_official 82:0b31dbcd4769 34
mbed_official 363:12a245e5c745 35 #if defined(TARGET_KL43Z)
mbed_official 363:12a245e5c745 36 GPIO_Type *reg = (GPIO_Type *)(GPIOA_BASE + port * 0x40);
mbed_official 363:12a245e5c745 37 #else
mbed_official 82:0b31dbcd4769 38 FGPIO_Type *reg = (FGPIO_Type *)(FPTA_BASE + port * 0x40);
mbed_official 363:12a245e5c745 39 #endif
mbed_official 82:0b31dbcd4769 40 obj->reg_set = &reg->PSOR;
mbed_official 82:0b31dbcd4769 41 obj->reg_clr = &reg->PCOR;
mbed_official 82:0b31dbcd4769 42 obj->reg_in = &reg->PDIR;
mbed_official 82:0b31dbcd4769 43 obj->reg_dir = &reg->PDDR;
mbed_official 82:0b31dbcd4769 44 }
mbed_official 82:0b31dbcd4769 45
mbed_official 82:0b31dbcd4769 46 void gpio_mode(gpio_t *obj, PinMode mode) {
mbed_official 82:0b31dbcd4769 47 pin_mode(obj->pin, mode);
mbed_official 82:0b31dbcd4769 48 }
mbed_official 82:0b31dbcd4769 49
mbed_official 82:0b31dbcd4769 50 void gpio_dir(gpio_t *obj, PinDirection direction) {
mbed_official 227:7bd0639b8911 51 MBED_ASSERT(obj->pin != (PinName)NC);
mbed_official 82:0b31dbcd4769 52 switch (direction) {
mbed_official 227:7bd0639b8911 53 case PIN_INPUT :
mbed_official 227:7bd0639b8911 54 *obj->reg_dir &= ~obj->mask;
mbed_official 227:7bd0639b8911 55 break;
mbed_official 227:7bd0639b8911 56 case PIN_OUTPUT:
mbed_official 227:7bd0639b8911 57 *obj->reg_dir |= obj->mask;
mbed_official 227:7bd0639b8911 58 break;
mbed_official 82:0b31dbcd4769 59 }
mbed_official 82:0b31dbcd4769 60 }