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cpu/nrf51822/lpm_arch: add power modes

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This commit is contained in:
Frank Holtz 2015-05-09 21:48:46 +02:00
parent 2682c38ee8
commit ece408a96c
1 changed files with 22 additions and 2 deletions
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24
cpu/nrf51822/lpm_arch.c
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@ -14,10 +14,12 @@
* @brief Implementation of the kernels power management interface
*
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
* @author Frank Holtz <frank-riot2015@holtznet.de>
*
* @}
*/
#include "cpu.h"
#include "arch/lpm_arch.h"
void lpm_arch_init(void)
@ -27,8 +29,26 @@ void lpm_arch_init(void)
enum lpm_mode lpm_arch_set(enum lpm_mode target)
{
(void) target;
/* TODO: needs to be implemented */
switch (target) {
/* wait for next interrupt */
case LPM_IDLE:
case LPM_SLEEP:
case LPM_POWERDOWN:
__DSB();
__WFI();
break;
case LPM_OFF:
/* Switch of RAM and power off */
NRF_POWER->RAMON = 0;
NRF_POWER->SYSTEMOFF = 1;
break;
/* do nothing here */
case LPM_UNKNOWN:
case LPM_ON:
default:
break;
}
return 0;
}