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Merge pull request #2954 from d00616/cpu_nrf51_lpm

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cpu/nrf51822/lpm_arch: add __WFI
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Hauke Petersen 2015-05-22 13:45:44 +02:00
commit bac6b7fa97
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 * @brief Implementation of the kernels power management interface
* *
* @author Hauke Petersen <hauke.petersen@fu-berlin.de> * @author Hauke Petersen <hauke.petersen@fu-berlin.de>
* @author Frank Holtz <frank-riot2015@holtznet.de>
* *
* @} * @}
*/ */
#include "cpu.h"
#include "arch/lpm_arch.h" #include "arch/lpm_arch.h"
void lpm_arch_init(void) void lpm_arch_init(void)
@ -27,8 +29,26 @@ void lpm_arch_init(void)
enum lpm_mode lpm_arch_set(enum lpm_mode target) enum lpm_mode lpm_arch_set(enum lpm_mode target)
{ {
(void) target; switch (target) {
/* TODO: needs to be implemented */ /* 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; return 0;
} }