1 /* mbed Microcontroller Library
2 * Copyright (c) 2006-2013 ARM Limited
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
16 #include "mbed_assert.h"
20 void gpio_init(gpio_t *obj, PinName pin)
23 if (pin == (PinName)NC) {
27 obj->mask = (1ul << pin);
29 obj->reg_set = &NRF_GPIO->OUTSET;
30 obj->reg_clr = &NRF_GPIO->OUTCLR;
31 obj->reg_in = &NRF_GPIO->IN;
32 obj->reg_dir = &NRF_GPIO->DIR;
35 void gpio_mode(gpio_t *obj, PinMode mode)
37 pin_mode(obj->pin, mode);
40 void gpio_dir(gpio_t *obj, PinDirection direction)
42 MBED_ASSERT(obj->pin != (PinName)NC);
45 NRF_GPIO->PIN_CNF[obj->pin] = (GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos)
46 | (GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos)
47 | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos)
48 | (GPIO_PIN_CNF_DIR_Input << GPIO_PIN_CNF_DIR_Pos);
51 NRF_GPIO->PIN_CNF[obj->pin] = (GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos)
52 | (GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos)
53 | (GPIO_PIN_CNF_PULL_Disabled << GPIO_PIN_CNF_PULL_Pos)
54 | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos)
55 | (GPIO_PIN_CNF_DIR_Output << GPIO_PIN_CNF_DIR_Pos);