mbed library sources
Dependents: frdm_kl05z_gpio_test
Fork of mbed-src by
Diff: targets/hal/TARGET_NORDIC/TARGET_MCU_NRF51822/gpio_api.c
- Revision:
- 270:e2babe29baf8
- Parent:
- 227:7bd0639b8911
- Child:
- 300:55638feb26a4
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/hal/TARGET_NORDIC/TARGET_MCU_NRF51822/gpio_api.c Fri Aug 01 14:45:06 2014 +0100 @@ -0,0 +1,55 @@ +/* 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 "mbed_assert.h" +#include "gpio_api.h" +#include "pinmap.h" + +void gpio_init(gpio_t *obj, PinName pin) { + obj->pin = pin; + if (pin == (PinName)NC) + return; + + 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; +} + +void gpio_mode(gpio_t *obj, PinMode mode) { + pin_mode(obj->pin, mode); +} + +void gpio_dir(gpio_t *obj, PinDirection direction) { + MBED_ASSERT(obj->pin != (PinName)NC); + 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; + } +} +