Contiki-NG
lpm.h
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2015, Nordic Semiconductor
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  * notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  * notice, this list of conditions and the following disclaimer in the
12  * documentation and/or other materials provided with the distribution.
13  * 3. Neither the name of the Institute nor the names of its contributors
14  * may be used to endorse or promote products derived from this software
15  * without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  */
30 /**
31  * \addtogroup nrf52832-dev Device drivers
32  * @{
33  *
34  * \addtogroup nrf52832-lpm Low power mode functions
35  * @{
36  *
37  * \file
38  * A header file for low power mode functions.
39  * \author
40  * Wojciech Bober <wojciech.bober@nordicsemi.no>
41  */
42 #ifndef LPM_H
43 #define LPM_H
44 
45 #ifdef SOFTDEVICE_PRESENT
46 #include "nrf_soc.h"
47 #endif
48 
49 /**
50  * \brief Stop and wait for an event
51  *
52  */
53 static inline void
54 lpm_drop(void)
55 {
56 #ifdef SOFTDEVICE_PRESENT
57  sd_app_evt_wait();
58 #else
59  __WFI();
60 #endif
61 }
62 
63 #endif /* DEV_LPM_H_ */
64 /**
65  * @}
66  * @}
67  */
__STATIC_INLINE void __WFI(void)
Wait For Interrupt.
Definition: cmsis_gcc.h:383
static void lpm_drop(void)
Stop and wait for an event.
Definition: lpm.h:54