mbed library sources
Dependents: frdm_kl05z_gpio_test
Fork of mbed-src by
targets/hal/TARGET_NORDIC/TARGET_NRF51822/gpio_api.c
- Committer:
- mbed_official
- Date:
- 2014-02-07
- Revision:
- 85:e1a8e879a6a9
- Child:
- 113:65a335a675de
File content as of revision 85:e1a8e879a6a9:
/* mbed Microcontroller Library * Copyright (c) 2006-2013 ARM Limited * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include "gpio_api.h" #include "pinmap.h" void gpio_init(gpio_t *obj, PinName pin, PinDirection direction) { if(pin == NC) return; obj->pin = pin; obj->mask = (1ul<<pin); obj->reg_set = &NRF_GPIO->OUTSET; obj->reg_clr = &NRF_GPIO->OUTCLR; obj->reg_in = &NRF_GPIO->IN; obj->reg_dir = &NRF_GPIO->DIR; gpio_dir(obj, direction); switch (direction) { case PIN_OUTPUT: pin_mode(pin, PullNone); break; case PIN_INPUT : pin_mode(pin, PullUp); break; } } void gpio_mode(gpio_t *obj, PinMode mode) { pin_mode(obj->pin, mode); } void gpio_dir(gpio_t *obj, PinDirection direction) { switch (direction) { case PIN_INPUT : NRF_GPIO->PIN_CNF[obj->pin] = (GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos) | (GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos) | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) | (GPIO_PIN_CNF_DIR_Input << GPIO_PIN_CNF_DIR_Pos); break; case PIN_OUTPUT: NRF_GPIO->PIN_CNF[obj->pin] = (GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos) | (GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos) | (GPIO_PIN_CNF_PULL_Disabled << GPIO_PIN_CNF_PULL_Pos) | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) | (GPIO_PIN_CNF_DIR_Output << GPIO_PIN_CNF_DIR_Pos); break; } }