1 /* mbed Microcontroller Library
2 * Copyright (c) 2015 ARM Limited
3 * SPDX-License-Identifier: Apache-2.0
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 #include "lp_ticker_api.h"
18
19 #if DEVICE_LPTICKER
20
21 static ticker_event_queue_t events = { 0 };
22
23 static ticker_irq_handler_type irq_handler = ticker_irq_handler;
24
25 static const ticker_interface_t lp_interface = {
26 .init = lp_ticker_init,
27 .read = lp_ticker_read,
28 .disable_interrupt = lp_ticker_disable_interrupt,
29 .clear_interrupt = lp_ticker_clear_interrupt,
30 .set_interrupt = lp_ticker_set_interrupt,
31 .fire_interrupt = lp_ticker_fire_interrupt,
32 .get_info = lp_ticker_get_info,
33 .free = lp_ticker_free,
34 .runs_in_deep_sleep = true,
35 };
36
37 static const ticker_data_t lp_data = {
38 .interface = &lp_interface,
39 .queue = &events,
40 };
41
get_lp_ticker_data(void)42 const ticker_data_t *get_lp_ticker_data(void)
43 {
44 #if LPTICKER_DELAY_TICKS > 0
45 return get_lp_ticker_wrapper_data(&lp_data);
46 #else
47 return &lp_data;
48 #endif
49 }
50
set_lp_ticker_irq_handler(ticker_irq_handler_type ticker_irq_handler)51 ticker_irq_handler_type set_lp_ticker_irq_handler(ticker_irq_handler_type ticker_irq_handler)
52 {
53 ticker_irq_handler_type prev_irq_handler = irq_handler;
54
55 irq_handler = ticker_irq_handler;
56
57 return prev_irq_handler;
58 }
59
lp_ticker_irq_handler(void)60 void lp_ticker_irq_handler(void)
61 {
62 #if LPTICKER_DELAY_TICKS > 0
63 lp_ticker_wrapper_irq_handler(irq_handler);
64 #else
65 if (irq_handler) {
66 irq_handler(&lp_data);
67 }
68 #endif
69 }
70
71 #endif
72