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jn516x: added sleep modes, support for 32kHz rtimer, and tickless clock

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This commit is contained in:
Simon Duquennoy 2015-12-02 10:25:32 +01:00
parent 94c26b90d0
commit 3ff44f77b9
10 changed files with 769 additions and 241 deletions
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70
platform/jn516x/dev/rtimer-arch.h
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@ -35,6 +35,7 @@
* Header file for NXP jn516x-specific rtimer code
* \author
* Beshr Al Nahas <beshr@sics.se>
* Atis Elsts <atis.elsts@sics.se>
*/
#ifndef RTIMER_ARCH_H_
@ -43,18 +44,75 @@
#include "sys/rtimer.h"
#ifdef RTIMER_CONF_SECOND
#define RTIMER_ARCH_SECOND RTIMER_CONF_SECOND
# define RTIMER_ARCH_SECOND RTIMER_CONF_SECOND
#else
#if RTIMER_USE_32KHZ
# if JN516X_EXTERNAL_CRYSTAL_OSCILLATOR
# define RTIMER_ARCH_SECOND 32768
# else
# define RTIMER_ARCH_SECOND 32000
#endif
#else
/* 32MHz CPU clock => 16MHz timer */
#define RTIMER_ARCH_SECOND (F_CPU / 2)
# define RTIMER_ARCH_SECOND (F_CPU / 2)
#endif
#endif
#define US_TO_RTIMERTICKS(D) ((int64_t)(D) << 4)
#define RTIMERTICKS_TO_US(T) ((int64_t)(T) >> 4)
#define RTIMERTICKS_TO_US_64(T) RTIMERTICKS_TO_US(T)
#if RTIMER_USE_32KHZ
#define US_TO_RTIMERTICKS(US) ((US) >= 0 ? \
(((int32_t)(US) * (RTIMER_ARCH_SECOND) + 500000) / 1000000L) : \
((int32_t)(US) * (RTIMER_ARCH_SECOND) - 500000) / 1000000L)
#define RTIMERTICKS_TO_US(T) ((T) >= 0 ? \
(((int32_t)(T) * 1000000L + ((RTIMER_ARCH_SECOND) / 2)) / (RTIMER_ARCH_SECOND)) : \
((int32_t)(T) * 1000000L - ((RTIMER_ARCH_SECOND) / 2)) / (RTIMER_ARCH_SECOND))
/* A 64-bit version because the 32-bit one cannot handle T >= 4295 ticks.
Intended only for positive values of T. */
#define RTIMERTICKS_TO_US_64(T) ((uint32_t)(((uint64_t)(T) * 1000000 + ((RTIMER_ARCH_SECOND) / 2)) / (RTIMER_ARCH_SECOND)))
#else
#define US_TO_RTIMERTICKS(D) ((int64_t)(D) << 4)
#define RTIMERTICKS_TO_US(T) ((int64_t)(T) >> 4)
#define RTIMERTICKS_TO_US_64(T) RTIMERTICKS_TO_US(T)
#endif
rtimer_clock_t rtimer_arch_now(void);
rtimer_clock_t rtimer_arch_get_time_until_next_wakeup(void);
rtimer_clock_t rtimer_arch_time_to_rtimer(void);
void rtimer_arch_reinit(rtimer_clock_t sleep_start, rtimer_clock_t wakeup_time);
void clock_arch_init(int is_reinitialization);
void clock_arch_calibrate(void);
void clock_arch_reinit(void);
void clock_arch_schedule_interrupt(clock_time_t time_to_etimer, rtimer_clock_t ticks_to_rtimer);
clock_t clock_arch_time_to_etimer(void);
/* Use 20 ms: enough for TSCH with the default schedule to sleep */
#define JN516X_MIN_SLEEP_TIME (RTIMER_SECOND / 50)
/* 1 second by default: arbitrary picked value which could be increased */
#define JN516X_MAX_SLEEP_TIME RTIMER_SECOND
/* Assume conservative 10 ms maximal system wakeup time */
#define JN516X_SLEEP_GUARD_TIME (RTIMER_ARCH_SECOND / 100)
#define WAKEUP_TIMER E_AHI_WAKE_TIMER_0
#define WAKEUP_TIMER_MASK E_AHI_SYSCTRL_WK0_MASK
#define TICK_TIMER E_AHI_WAKE_TIMER_1
#define TICK_TIMER_MASK E_AHI_SYSCTRL_WK1_MASK
#define WAIT_FOR_EDGE(edge_t) do { \
uint64_t start_t = u64AHI_WakeTimerReadLarge(TICK_TIMER); \
do { \
edge_t = u64AHI_WakeTimerReadLarge(TICK_TIMER); \
} while(edge_t == start_t); \
} while(0)
#endif /* RTIMER_ARCH_H_ */