Yihui Xiong / BLE_NODE_TEST

Test code for Grove Node BLE

Dependencies:   BLE_API nRF51822

Fork of BLE_LoopbackUART by Bluetooth Low Energy

mbed-src/targets/hal/TARGET_NORDIC/TARGET_MCU_NRF51822/gpio_api.c@10:22480ac31879, 2014-11-27 (annotated)

Committer:
yihui
Date:
Thu Nov 27 09:30:36 2014 +0000
Revision:
10:22480ac31879
Parent:
9:05f0b5a3a70a 
change to new revision hardware

Who changed what in which revision?

UserRevisionLine numberNew contents of line
yihui 9:05f0b5a3a70a 1 /* mbed Microcontroller Library
yihui 9:05f0b5a3a70a 2 * Copyright (c) 2006-2013 ARM Limited
yihui 9:05f0b5a3a70a 3 *
yihui 9:05f0b5a3a70a 4 * Licensed under the Apache License, Version 2.0 (the "License");
yihui 9:05f0b5a3a70a 5 * you may not use this file except in compliance with the License.
yihui 9:05f0b5a3a70a 6 * You may obtain a copy of the License at
yihui 9:05f0b5a3a70a 7 *
yihui 9:05f0b5a3a70a 8 * http://www.apache.org/licenses/LICENSE-2.0
yihui 9:05f0b5a3a70a 9 *
yihui 9:05f0b5a3a70a 10 * Unless required by applicable law or agreed to in writing, software
yihui 9:05f0b5a3a70a 11 * distributed under the License is distributed on an "AS IS" BASIS,
yihui 9:05f0b5a3a70a 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
yihui 9:05f0b5a3a70a 13 * See the License for the specific language governing permissions and
yihui 9:05f0b5a3a70a 14 * limitations under the License.
yihui 9:05f0b5a3a70a 15 */
yihui 9:05f0b5a3a70a 16 #include "mbed_assert.h"
yihui 9:05f0b5a3a70a 17 #include "gpio_api.h"
yihui 9:05f0b5a3a70a 18 #include "pinmap.h"
yihui 9:05f0b5a3a70a 19
yihui 9:05f0b5a3a70a 20 void gpio_init(gpio_t *obj, PinName pin)
yihui 9:05f0b5a3a70a 21 {
yihui 9:05f0b5a3a70a 22 obj->pin = pin;
yihui 9:05f0b5a3a70a 23 if (pin == (PinName)NC) {
yihui 9:05f0b5a3a70a 24 return;
yihui 9:05f0b5a3a70a 25 }
yihui 9:05f0b5a3a70a 26
yihui 9:05f0b5a3a70a 27 obj->mask = (1ul << pin);
yihui 9:05f0b5a3a70a 28
yihui 9:05f0b5a3a70a 29 obj->reg_set = &NRF_GPIO->OUTSET;
yihui 9:05f0b5a3a70a 30 obj->reg_clr = &NRF_GPIO->OUTCLR;
yihui 9:05f0b5a3a70a 31 obj->reg_in = &NRF_GPIO->IN;
yihui 9:05f0b5a3a70a 32 obj->reg_dir = &NRF_GPIO->DIR;
yihui 9:05f0b5a3a70a 33 }
yihui 9:05f0b5a3a70a 34
yihui 9:05f0b5a3a70a 35 void gpio_mode(gpio_t *obj, PinMode mode)
yihui 9:05f0b5a3a70a 36 {
yihui 9:05f0b5a3a70a 37 pin_mode(obj->pin, mode);
yihui 9:05f0b5a3a70a 38 }
yihui 9:05f0b5a3a70a 39
yihui 9:05f0b5a3a70a 40 void gpio_dir(gpio_t *obj, PinDirection direction)
yihui 9:05f0b5a3a70a 41 {
yihui 9:05f0b5a3a70a 42 MBED_ASSERT(obj->pin != (PinName)NC);
yihui 9:05f0b5a3a70a 43 switch (direction) {
yihui 9:05f0b5a3a70a 44 case PIN_INPUT:
yihui 9:05f0b5a3a70a 45 NRF_GPIO->PIN_CNF[obj->pin] = (GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos)
yihui 9:05f0b5a3a70a 46 | (GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos)
yihui 9:05f0b5a3a70a 47 | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos)
yihui 9:05f0b5a3a70a 48 | (GPIO_PIN_CNF_DIR_Input << GPIO_PIN_CNF_DIR_Pos);
yihui 9:05f0b5a3a70a 49 break;
yihui 9:05f0b5a3a70a 50 case PIN_OUTPUT:
yihui 9:05f0b5a3a70a 51 NRF_GPIO->PIN_CNF[obj->pin] = (GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos)
yihui 9:05f0b5a3a70a 52 | (GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos)
yihui 9:05f0b5a3a70a 53 | (GPIO_PIN_CNF_PULL_Disabled << GPIO_PIN_CNF_PULL_Pos)
yihui 9:05f0b5a3a70a 54 | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos)
yihui 9:05f0b5a3a70a 55 | (GPIO_PIN_CNF_DIR_Output << GPIO_PIN_CNF_DIR_Pos);
yihui 9:05f0b5a3a70a 56 break;
yihui 9:05f0b5a3a70a 57 }
yihui 9:05f0b5a3a70a 58 }