PES4 / Mbed OS Queue_02

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mbed-os/hal/mbed_us_ticker_api.c@0:6bf0743ece18, 2020-03-28 (annotated)

Committer:
demayer
Date:
Sat Mar 28 15:28:19 2020 +0000
Revision:
0:6bf0743ece18
IMU Thread with an event-queue running parallel to handle tasks like a 5 times blinking LED. Button with interrupt detected.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
demayer 0:6bf0743ece18 1 /* mbed Microcontroller Library
demayer 0:6bf0743ece18 2 * Copyright (c) 2015 ARM Limited
demayer 0:6bf0743ece18 3 *
demayer 0:6bf0743ece18 4 * Licensed under the Apache License, Version 2.0 (the "License");
demayer 0:6bf0743ece18 5 * you may not use this file except in compliance with the License.
demayer 0:6bf0743ece18 6 * You may obtain a copy of the License at
demayer 0:6bf0743ece18 7 *
demayer 0:6bf0743ece18 8 * http://www.apache.org/licenses/LICENSE-2.0
demayer 0:6bf0743ece18 9 *
demayer 0:6bf0743ece18 10 * Unless required by applicable law or agreed to in writing, software
demayer 0:6bf0743ece18 11 * distributed under the License is distributed on an "AS IS" BASIS,
demayer 0:6bf0743ece18 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
demayer 0:6bf0743ece18 13 * See the License for the specific language governing permissions and
demayer 0:6bf0743ece18 14 * limitations under the License.
demayer 0:6bf0743ece18 15 */
demayer 0:6bf0743ece18 16 #include "hal/us_ticker_api.h"
demayer 0:6bf0743ece18 17
demayer 0:6bf0743ece18 18 static ticker_event_queue_t events = { 0 };
demayer 0:6bf0743ece18 19
demayer 0:6bf0743ece18 20 static ticker_irq_handler_type irq_handler = ticker_irq_handler;
demayer 0:6bf0743ece18 21
demayer 0:6bf0743ece18 22 static const ticker_interface_t us_interface = {
demayer 0:6bf0743ece18 23 .init = us_ticker_init,
demayer 0:6bf0743ece18 24 .read = us_ticker_read,
demayer 0:6bf0743ece18 25 .disable_interrupt = us_ticker_disable_interrupt,
demayer 0:6bf0743ece18 26 .clear_interrupt = us_ticker_clear_interrupt,
demayer 0:6bf0743ece18 27 .set_interrupt = us_ticker_set_interrupt,
demayer 0:6bf0743ece18 28 .fire_interrupt = us_ticker_fire_interrupt,
demayer 0:6bf0743ece18 29 .get_info = us_ticker_get_info,
demayer 0:6bf0743ece18 30 };
demayer 0:6bf0743ece18 31
demayer 0:6bf0743ece18 32 static const ticker_data_t us_data = {
demayer 0:6bf0743ece18 33 .interface = &us_interface,
demayer 0:6bf0743ece18 34 .queue = &events
demayer 0:6bf0743ece18 35 };
demayer 0:6bf0743ece18 36
demayer 0:6bf0743ece18 37 const ticker_data_t* get_us_ticker_data(void)
demayer 0:6bf0743ece18 38 {
demayer 0:6bf0743ece18 39 return &us_data;
demayer 0:6bf0743ece18 40 }
demayer 0:6bf0743ece18 41
demayer 0:6bf0743ece18 42 ticker_irq_handler_type set_us_ticker_irq_handler(ticker_irq_handler_type ticker_irq_handler)
demayer 0:6bf0743ece18 43 {
demayer 0:6bf0743ece18 44 ticker_irq_handler_type prev_irq_handler = irq_handler;
demayer 0:6bf0743ece18 45
demayer 0:6bf0743ece18 46 irq_handler = ticker_irq_handler;
demayer 0:6bf0743ece18 47
demayer 0:6bf0743ece18 48 return prev_irq_handler;
demayer 0:6bf0743ece18 49 }
demayer 0:6bf0743ece18 50
demayer 0:6bf0743ece18 51 void us_ticker_irq_handler(void)
demayer 0:6bf0743ece18 52 {
demayer 0:6bf0743ece18 53 if (irq_handler) {
demayer 0:6bf0743ece18 54 irq_handler(&us_data);
demayer 0:6bf0743ece18 55 }
demayer 0:6bf0743ece18 56 }