shao ziyang / mbed-src-kl05

mbed library sources

Dependents:   frdm_kl05z_gpio_test

Fork of mbed-src by mbed official

targets/hal/TARGET_NORDIC/TARGET_MCU_NRF51822/gpio_api.c@300:55638feb26a4, 2014-08-27 (annotated)

Committer:
mbed_official
Date:
Wed Aug 27 08:45:06 2014 +0100
Revision:
300:55638feb26a4
Parent:
270:e2babe29baf8 
Synchronized with git revision 90467175c04ad81c20cdf7b2ddb86c54f5f3dcbb



Full URL: https://github.com/mbedmicro/mbed/commit/90467175c04ad81c20cdf7b2ddb86c54f5f3dcbb/

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 85:e1a8e879a6a9 1 /* mbed Microcontroller Library
mbed_official 85:e1a8e879a6a9 2 * Copyright (c) 2006-2013 ARM Limited
mbed_official 85:e1a8e879a6a9 3 *
mbed_official 85:e1a8e879a6a9 4 * Licensed under the Apache License, Version 2.0 (the "License");
mbed_official 85:e1a8e879a6a9 5 * you may not use this file except in compliance with the License.
mbed_official 85:e1a8e879a6a9 6 * You may obtain a copy of the License at
mbed_official 85:e1a8e879a6a9 7 *
mbed_official 85:e1a8e879a6a9 8 * http://www.apache.org/licenses/LICENSE-2.0
mbed_official 85:e1a8e879a6a9 9 *
mbed_official 85:e1a8e879a6a9 10 * Unless required by applicable law or agreed to in writing, software
mbed_official 85:e1a8e879a6a9 11 * distributed under the License is distributed on an "AS IS" BASIS,
mbed_official 85:e1a8e879a6a9 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbed_official 85:e1a8e879a6a9 13 * See the License for the specific language governing permissions and
mbed_official 85:e1a8e879a6a9 14 * limitations under the License.
mbed_official 85:e1a8e879a6a9 15 */
mbed_official 227:7bd0639b8911 16 #include "mbed_assert.h"
mbed_official 85:e1a8e879a6a9 17 #include "gpio_api.h"
mbed_official 85:e1a8e879a6a9 18 #include "pinmap.h"
mbed_official 85:e1a8e879a6a9 19
mbed_official 300:55638feb26a4 20 void gpio_init(gpio_t *obj, PinName pin)
mbed_official 300:55638feb26a4 21 {
mbed_official 227:7bd0639b8911 22 obj->pin = pin;
mbed_official 300:55638feb26a4 23 if (pin == (PinName)NC) {
mbed_official 227:7bd0639b8911 24 return;
mbed_official 300:55638feb26a4 25 }
mbed_official 85:e1a8e879a6a9 26
mbed_official 227:7bd0639b8911 27 obj->mask = (1ul << pin);
mbed_official 85:e1a8e879a6a9 28
mbed_official 85:e1a8e879a6a9 29 obj->reg_set = &NRF_GPIO->OUTSET;
mbed_official 85:e1a8e879a6a9 30 obj->reg_clr = &NRF_GPIO->OUTCLR;
mbed_official 85:e1a8e879a6a9 31 obj->reg_in = &NRF_GPIO->IN;
mbed_official 85:e1a8e879a6a9 32 obj->reg_dir = &NRF_GPIO->DIR;
mbed_official 85:e1a8e879a6a9 33 }
mbed_official 85:e1a8e879a6a9 34
mbed_official 300:55638feb26a4 35 void gpio_mode(gpio_t *obj, PinMode mode)
mbed_official 300:55638feb26a4 36 {
mbed_official 85:e1a8e879a6a9 37 pin_mode(obj->pin, mode);
mbed_official 85:e1a8e879a6a9 38 }
mbed_official 85:e1a8e879a6a9 39
mbed_official 300:55638feb26a4 40 void gpio_dir(gpio_t *obj, PinDirection direction)
mbed_official 300:55638feb26a4 41 {
mbed_official 227:7bd0639b8911 42 MBED_ASSERT(obj->pin != (PinName)NC);
mbed_official 85:e1a8e879a6a9 43 switch (direction) {
mbed_official 300:55638feb26a4 44 case PIN_INPUT:
mbed_official 227:7bd0639b8911 45 NRF_GPIO->PIN_CNF[obj->pin] = (GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos)
mbed_official 85:e1a8e879a6a9 46 | (GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos)
mbed_official 85:e1a8e879a6a9 47 | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos)
mbed_official 85:e1a8e879a6a9 48 | (GPIO_PIN_CNF_DIR_Input << GPIO_PIN_CNF_DIR_Pos);
mbed_official 227:7bd0639b8911 49 break;
mbed_official 227:7bd0639b8911 50 case PIN_OUTPUT:
mbed_official 227:7bd0639b8911 51 NRF_GPIO->PIN_CNF[obj->pin] = (GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos)
mbed_official 85:e1a8e879a6a9 52 | (GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos)
mbed_official 85:e1a8e879a6a9 53 | (GPIO_PIN_CNF_PULL_Disabled << GPIO_PIN_CNF_PULL_Pos)
mbed_official 85:e1a8e879a6a9 54 | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos)
mbed_official 85:e1a8e879a6a9 55 | (GPIO_PIN_CNF_DIR_Output << GPIO_PIN_CNF_DIR_Pos);
mbed_official 227:7bd0639b8911 56 break;
mbed_official 85:e1a8e879a6a9 57 }
mbed_official 85:e1a8e879a6a9 58 }