Kenji Arai / mbed-os_TYBLE16

mbed-os5 only for TYBLE16

Dependents:   TYBLE16_simple_data_logger TYBLE16_MP3_Air

hal/mbed_us_ticker_api.c@1:9db0e321a9f4, 2019-12-31 (annotated)

Committer:
kenjiArai
Date:
Tue Dec 31 06:02:27 2019 +0000
Revision:
1:9db0e321a9f4
Parent:
0:5b88d5760320 
updated based on mbed-os5.15.0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kenjiArai 0:5b88d5760320 1 /* mbed Microcontroller Library
kenjiArai 0:5b88d5760320 2 * Copyright (c) 2015 ARM Limited
kenjiArai 0:5b88d5760320 3 * SPDX-License-Identifier: Apache-2.0
kenjiArai 0:5b88d5760320 4 *
kenjiArai 0:5b88d5760320 5 * Licensed under the Apache License, Version 2.0 (the "License");
kenjiArai 0:5b88d5760320 6 * you may not use this file except in compliance with the License.
kenjiArai 0:5b88d5760320 7 * You may obtain a copy of the License at
kenjiArai 0:5b88d5760320 8 *
kenjiArai 0:5b88d5760320 9 * http://www.apache.org/licenses/LICENSE-2.0
kenjiArai 0:5b88d5760320 10 *
kenjiArai 0:5b88d5760320 11 * Unless required by applicable law or agreed to in writing, software
kenjiArai 0:5b88d5760320 12 * distributed under the License is distributed on an "AS IS" BASIS,
kenjiArai 0:5b88d5760320 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
kenjiArai 0:5b88d5760320 14 * See the License for the specific language governing permissions and
kenjiArai 0:5b88d5760320 15 * limitations under the License.
kenjiArai 0:5b88d5760320 16 */
kenjiArai 0:5b88d5760320 17
kenjiArai 0:5b88d5760320 18 #include <stddef.h>
kenjiArai 0:5b88d5760320 19 #include "platform/mbed_atomic.h"
kenjiArai 0:5b88d5760320 20 #include "hal/us_ticker_api.h"
kenjiArai 0:5b88d5760320 21
kenjiArai 0:5b88d5760320 22 #if DEVICE_USTICKER
kenjiArai 0:5b88d5760320 23
kenjiArai 0:5b88d5760320 24 static ticker_event_queue_t events = { 0 };
kenjiArai 0:5b88d5760320 25
kenjiArai 0:5b88d5760320 26 static ticker_irq_handler_type irq_handler = ticker_irq_handler;
kenjiArai 0:5b88d5760320 27
kenjiArai 0:5b88d5760320 28 #if MBED_CONF_TARGET_INIT_US_TICKER_AT_BOOT
kenjiArai 0:5b88d5760320 29
kenjiArai 0:5b88d5760320 30 // If we are initializing at boot, we want the timer to be
kenjiArai 0:5b88d5760320 31 // always-on, so we block any attempt to free it. We do need
kenjiArai 0:5b88d5760320 32 // to pass through init(), as that needs to reset pending
kenjiArai 0:5b88d5760320 33 // interrupts.
kenjiArai 0:5b88d5760320 34 static void block_us_ticker_free()
kenjiArai 0:5b88d5760320 35 {
kenjiArai 0:5b88d5760320 36 }
kenjiArai 0:5b88d5760320 37
kenjiArai 0:5b88d5760320 38 #else // MBED_CONF_TARGET_INIT_US_TICKER_AT_BOOT
kenjiArai 0:5b88d5760320 39
kenjiArai 0:5b88d5760320 40 bool _us_ticker_initialized;
kenjiArai 0:5b88d5760320 41
kenjiArai 0:5b88d5760320 42 // If we are not initializing at boot, we want to track
kenjiArai 0:5b88d5760320 43 // whether the timer has been initialized. This permits
kenjiArai 0:5b88d5760320 44 // a fast path for wait_us.
kenjiArai 0:5b88d5760320 45 static void note_us_ticker_init()
kenjiArai 0:5b88d5760320 46 {
kenjiArai 0:5b88d5760320 47 us_ticker_init();
kenjiArai 0:5b88d5760320 48 core_util_atomic_store_bool(&_us_ticker_initialized, true);
kenjiArai 0:5b88d5760320 49 }
kenjiArai 0:5b88d5760320 50
kenjiArai 0:5b88d5760320 51 static void note_us_ticker_free()
kenjiArai 0:5b88d5760320 52 {
kenjiArai 0:5b88d5760320 53 core_util_atomic_store_bool(&_us_ticker_initialized, false);
kenjiArai 0:5b88d5760320 54 us_ticker_free();
kenjiArai 0:5b88d5760320 55 }
kenjiArai 0:5b88d5760320 56
kenjiArai 0:5b88d5760320 57 #endif // MBED_CONF_TARGET_INIT_US_TICKER_AT_BOOT
kenjiArai 0:5b88d5760320 58
kenjiArai 0:5b88d5760320 59 static const ticker_interface_t us_interface = {
kenjiArai 0:5b88d5760320 60 #if MBED_CONF_TARGET_INIT_US_TICKER_AT_BOOT
kenjiArai 0:5b88d5760320 61 .init = us_ticker_init,
kenjiArai 0:5b88d5760320 62 #else
kenjiArai 0:5b88d5760320 63 .init = note_us_ticker_init,
kenjiArai 0:5b88d5760320 64 #endif
kenjiArai 0:5b88d5760320 65 .read = us_ticker_read,
kenjiArai 0:5b88d5760320 66 .disable_interrupt = us_ticker_disable_interrupt,
kenjiArai 0:5b88d5760320 67 .clear_interrupt = us_ticker_clear_interrupt,
kenjiArai 0:5b88d5760320 68 .set_interrupt = us_ticker_set_interrupt,
kenjiArai 0:5b88d5760320 69 .fire_interrupt = us_ticker_fire_interrupt,
kenjiArai 0:5b88d5760320 70 .get_info = us_ticker_get_info,
kenjiArai 0:5b88d5760320 71 #if MBED_CONF_TARGET_INIT_US_TICKER_AT_BOOT
kenjiArai 0:5b88d5760320 72 .free = block_us_ticker_free,
kenjiArai 0:5b88d5760320 73 #else
kenjiArai 0:5b88d5760320 74 .free = note_us_ticker_free,
kenjiArai 0:5b88d5760320 75 #endif
kenjiArai 0:5b88d5760320 76 .runs_in_deep_sleep = false,
kenjiArai 0:5b88d5760320 77 };
kenjiArai 0:5b88d5760320 78
kenjiArai 0:5b88d5760320 79 static const ticker_data_t us_data = {
kenjiArai 0:5b88d5760320 80 .interface = &us_interface,
kenjiArai 0:5b88d5760320 81 .queue = &events
kenjiArai 0:5b88d5760320 82 };
kenjiArai 0:5b88d5760320 83
kenjiArai 0:5b88d5760320 84 const ticker_data_t *get_us_ticker_data(void)
kenjiArai 0:5b88d5760320 85 {
kenjiArai 0:5b88d5760320 86 return &us_data;
kenjiArai 0:5b88d5760320 87 }
kenjiArai 0:5b88d5760320 88
kenjiArai 0:5b88d5760320 89 ticker_irq_handler_type set_us_ticker_irq_handler(ticker_irq_handler_type ticker_irq_handler)
kenjiArai 0:5b88d5760320 90 {
kenjiArai 0:5b88d5760320 91 ticker_irq_handler_type prev_irq_handler = irq_handler;
kenjiArai 0:5b88d5760320 92
kenjiArai 0:5b88d5760320 93 irq_handler = ticker_irq_handler;
kenjiArai 0:5b88d5760320 94
kenjiArai 0:5b88d5760320 95 return prev_irq_handler;
kenjiArai 0:5b88d5760320 96 }
kenjiArai 0:5b88d5760320 97
kenjiArai 0:5b88d5760320 98 void us_ticker_irq_handler(void)
kenjiArai 0:5b88d5760320 99 {
kenjiArai 0:5b88d5760320 100 if (irq_handler) {
kenjiArai 0:5b88d5760320 101 irq_handler(&us_data);
kenjiArai 0:5b88d5760320 102 }
kenjiArai 0:5b88d5760320 103 }
kenjiArai 0:5b88d5760320 104
kenjiArai 0:5b88d5760320 105 #else
kenjiArai 0:5b88d5760320 106
kenjiArai 0:5b88d5760320 107 const ticker_data_t *get_us_ticker_data(void)
kenjiArai 0:5b88d5760320 108 {
kenjiArai 0:5b88d5760320 109 return NULL;
kenjiArai 0:5b88d5760320 110 }
kenjiArai 0:5b88d5760320 111
kenjiArai 0:5b88d5760320 112 #endif // DEVICE_USTICKER