DongEun Koak / mbed-src

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Dependents:   Freedman_v2 Nucleo_i2c_OLED_BME280_copy

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targets/hal/TARGET_NXP/TARGET_LPC2460/gpio_api.c@614:d1b257119699, 2015-08-24 (annotated)

Committer:
kaizen
Date:
Mon Aug 24 00:12:39 2015 +0000
Revision:
614:d1b257119699
Parent:
554:edd95c0879f8 
Added UART_2 of WIZwiki_W7500 for test

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 }