Yihui Xiong / Seeed_nRF51822_MPU9250

Use MPU9250 with nRF51822

Dependencies:   eMPL_MPU

Fork of Seeed_Tiny_BLE_Flash by Darren Huang

mbed-src/common/InterruptIn.cpp@5:9b240c1d5251, 2015-12-10 (annotated)

Committer:
yihui
Date:
Thu Dec 10 08:00:18 2015 +0000
Revision:
5:9b240c1d5251
get 9dof data from mpu9250

Who changed what in which revision?

UserRevisionLine numberNew contents of line
yihui 5:9b240c1d5251 1 /* mbed Microcontroller Library
yihui 5:9b240c1d5251 2 * Copyright (c) 2006-2013 ARM Limited
yihui 5:9b240c1d5251 3 *
yihui 5:9b240c1d5251 4 * Licensed under the Apache License, Version 2.0 (the "License");
yihui 5:9b240c1d5251 5 * you may not use this file except in compliance with the License.
yihui 5:9b240c1d5251 6 * You may obtain a copy of the License at
yihui 5:9b240c1d5251 7 *
yihui 5:9b240c1d5251 8 * http://www.apache.org/licenses/LICENSE-2.0
yihui 5:9b240c1d5251 9 *
yihui 5:9b240c1d5251 10 * Unless required by applicable law or agreed to in writing, software
yihui 5:9b240c1d5251 11 * distributed under the License is distributed on an "AS IS" BASIS,
yihui 5:9b240c1d5251 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
yihui 5:9b240c1d5251 13 * See the License for the specific language governing permissions and
yihui 5:9b240c1d5251 14 * limitations under the License.
yihui 5:9b240c1d5251 15 */
yihui 5:9b240c1d5251 16 #include "InterruptIn.h"
yihui 5:9b240c1d5251 17
yihui 5:9b240c1d5251 18 #if DEVICE_INTERRUPTIN
yihui 5:9b240c1d5251 19
yihui 5:9b240c1d5251 20 namespace mbed {
yihui 5:9b240c1d5251 21
yihui 5:9b240c1d5251 22 InterruptIn::InterruptIn(PinName pin) : gpio(),
yihui 5:9b240c1d5251 23 gpio_irq(),
yihui 5:9b240c1d5251 24 _rise(),
yihui 5:9b240c1d5251 25 _fall() {
yihui 5:9b240c1d5251 26 gpio_irq_init(&gpio_irq, pin, (&InterruptIn::_irq_handler), (uint32_t)this);
yihui 5:9b240c1d5251 27 gpio_init_in(&gpio, pin);
yihui 5:9b240c1d5251 28 }
yihui 5:9b240c1d5251 29
yihui 5:9b240c1d5251 30 InterruptIn::~InterruptIn() {
yihui 5:9b240c1d5251 31 gpio_irq_free(&gpio_irq);
yihui 5:9b240c1d5251 32 }
yihui 5:9b240c1d5251 33
yihui 5:9b240c1d5251 34 int InterruptIn::read() {
yihui 5:9b240c1d5251 35 return gpio_read(&gpio);
yihui 5:9b240c1d5251 36 }
yihui 5:9b240c1d5251 37
yihui 5:9b240c1d5251 38 void InterruptIn::mode(PinMode pull) {
yihui 5:9b240c1d5251 39 gpio_mode(&gpio, pull);
yihui 5:9b240c1d5251 40 }
yihui 5:9b240c1d5251 41
yihui 5:9b240c1d5251 42 void InterruptIn::rise(void (*fptr)(void)) {
yihui 5:9b240c1d5251 43 if (fptr) {
yihui 5:9b240c1d5251 44 _rise.attach(fptr);
yihui 5:9b240c1d5251 45 gpio_irq_set(&gpio_irq, IRQ_RISE, 1);
yihui 5:9b240c1d5251 46 } else {
yihui 5:9b240c1d5251 47 gpio_irq_set(&gpio_irq, IRQ_RISE, 0);
yihui 5:9b240c1d5251 48 }
yihui 5:9b240c1d5251 49 }
yihui 5:9b240c1d5251 50
yihui 5:9b240c1d5251 51 void InterruptIn::fall(void (*fptr)(void)) {
yihui 5:9b240c1d5251 52 if (fptr) {
yihui 5:9b240c1d5251 53 _fall.attach(fptr);
yihui 5:9b240c1d5251 54 gpio_irq_set(&gpio_irq, IRQ_FALL, 1);
yihui 5:9b240c1d5251 55 } else {
yihui 5:9b240c1d5251 56 gpio_irq_set(&gpio_irq, IRQ_FALL, 0);
yihui 5:9b240c1d5251 57 }
yihui 5:9b240c1d5251 58 }
yihui 5:9b240c1d5251 59
yihui 5:9b240c1d5251 60 void InterruptIn::_irq_handler(uint32_t id, gpio_irq_event event) {
yihui 5:9b240c1d5251 61 InterruptIn *handler = (InterruptIn*)id;
yihui 5:9b240c1d5251 62 switch (event) {
yihui 5:9b240c1d5251 63 case IRQ_RISE: handler->_rise.call(); break;
yihui 5:9b240c1d5251 64 case IRQ_FALL: handler->_fall.call(); break;
yihui 5:9b240c1d5251 65 case IRQ_NONE: break;
yihui 5:9b240c1d5251 66 }
yihui 5:9b240c1d5251 67 }
yihui 5:9b240c1d5251 68
yihui 5:9b240c1d5251 69 void InterruptIn::enable_irq() {
yihui 5:9b240c1d5251 70 gpio_irq_enable(&gpio_irq);
yihui 5:9b240c1d5251 71 }
yihui 5:9b240c1d5251 72
yihui 5:9b240c1d5251 73 void InterruptIn::disable_irq() {
yihui 5:9b240c1d5251 74 gpio_irq_disable(&gpio_irq);
yihui 5:9b240c1d5251 75 }
yihui 5:9b240c1d5251 76
yihui 5:9b240c1d5251 77 #ifdef MBED_OPERATORS
yihui 5:9b240c1d5251 78 InterruptIn::operator int() {
yihui 5:9b240c1d5251 79 return read();
yihui 5:9b240c1d5251 80 }
yihui 5:9b240c1d5251 81 #endif
yihui 5:9b240c1d5251 82
yihui 5:9b240c1d5251 83 } // namespace mbed
yihui 5:9b240c1d5251 84
yihui 5:9b240c1d5251 85 #endif