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sys/ztimer: add LPTIMER auto init
This commit is contained in:
Karl Fessel
parent
594fe83843
commit
81d06c819c
@ -32,6 +32,7 @@
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* 2.1b: else: convert from ZTIMER_USEC
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*
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* @author Kaspar Schleiser <kaspar@schleiser.de>
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* @author Karl Fessel <kfessel>
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*
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* @}
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*/
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@ -73,6 +74,12 @@
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# define ZTIMER_TIMER_FREQ CONFIG_ZTIMER_USEC_BASE_FREQ
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#endif
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#if MODULE_ZTIMER_PERIPH_LPTIMER
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# define ZTIMER_LPTIMER _ztimer_periph_timer_lp
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# define ZTIMER_LPTIMER_CLK _ztimer_periph_timer_lp.super
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# define ZTIMER_LPTIMER_FREQ CONFIG_ZTIMER_LPTIMER_FREQ
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#endif
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#if MODULE_ZTIMER_PERIPH_RTT
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# define ZTIMER_RTT _ztimer_periph_timer_rtt
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# define ZTIMER_RTT_CLK _ztimer_periph_timer_rtt
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@ -101,11 +108,23 @@
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# endif
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#endif
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/* ZTIMER_MSEC prefers ZTIMER_RTT (ztimer_periph_rtt)
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* if it is available and runs at a frequency > 1kHz
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* if not it falls back to use the basic timer */
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/* ZTIMER_MSEC uses one of in order of preference:
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* - ZTIMER_LPTIMER (ztimer_periph_lptimer)
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* if it is available and running at a frequency > 1kHz
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* - ZTIMER_RTT (ztimer_periph_rtt)
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* if it is available and running at a frequency > 1kHz,
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* if there is neither of those it falls back to use the basic timer
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* if that is available (there should be a basic timer with all boards)*/
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#if MODULE_ZTIMER_MSEC
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# if defined(ZTIMER_RTT) && ZTIMER_RTT_FREQ >= FREQ_1KHZ
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# if defined(ZTIMER_LPTIMER) && ZTIMER_LPTIMER_FREQ >= FREQ_1KHZ
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# define ZTIMER_MSEC_LPTIMER 1
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# ifndef INIT_ZTIMER_LPTIMER
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# define INIT_ZTIMER_LPTIMER 1
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# endif
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# if ZTIMER_LPTIMER_FREQ != FREQ_1KHZ
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# define ZTIMER_MSEC_CONVERT_LOWER_FREQ ZTIMER_LPTIMER_FREQ
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# endif
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# elif defined(ZTIMER_RTT) && ZTIMER_RTT_FREQ >= FREQ_1KHZ
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# define ZTIMER_MSEC_RTT 1
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# ifndef INIT_ZTIMER_RTT
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# define INIT_ZTIMER_RTT 1
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@ -122,16 +141,32 @@
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# endif
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#endif
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/* ZTIMER_SEC prefers ZTIMER_RTT (ztimer_periph_rtt) if it is available
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* if not it prefers ZTIMER_RTC (ztimer_periph_rtc) if it is available
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* if not it falls back to use the basic timer */
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/* ZTIMER_SEC uses one of in order of preference:
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* - ZTIMER_LPTIMER (ztimer_periph_lptimer)
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* if it is available and running at a frequency > 1Hz
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* - ZTIMER_RTT (ztimer_periph_rtt)
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* if it is available and running at a frequency > 1Hz,
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* - ZTIMER_RTC (ztimer_periph_rtc)
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* if it is available (this should be avoided)
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* if there is neither of those it falls back to use the basic timer
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* if that is available (there should be a basic timer with all boards)*/
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#if MODULE_ZTIMER_SEC
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# ifdef ZTIMER_RTT
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# if defined(ZTIMER_LPTIMER) && ZTIMER_LPTIMER_FREQ >= FREQ_1HZ
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# define ZTIMER_SEC_LPTIMER 1
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# ifndef INIT_ZTIMER_LPTIMER
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# define INIT_ZTIMER_LPTIMER 1
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# endif
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# if ZTIMER_LPTIMER_FREQ != FREQ_1HZ
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# define ZTIMER_SEC_CONVERT_LOWER_FREQ ZTIMER_LPTIMER_FREQ
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# endif
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# elif defined(ZTIMER_RTT)
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# define ZTIMER_SEC_RTT
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# ifndef INIT_ZTIMER_RTT
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# define INIT_ZTIMER_RTT 1
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# endif
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# if ZTIMER_RTT_FREQ != FREQ_1HZ
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# define ZTIMER_SEC_CONVERT_LOWER_FREQ ZTIMER_RTT_FREQ
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# endif
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# elif defined(ZTIMER_RTC)
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# define ZTIMER_SEC_RTC
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# ifndef INIT_ZTIMER_RTC
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@ -154,6 +189,10 @@ static ztimer_periph_timer_t ZTIMER_TIMER = {
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};
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#endif
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#if INIT_ZTIMER_LPTIMER
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static ztimer_periph_timer_t ZTIMER_LPTIMER = {};
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#endif
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#if INIT_ZTIMER_RTT
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static ztimer_periph_rtt_t ZTIMER_RTT;
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#endif
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@ -186,6 +225,8 @@ ztimer_clock_t *const ZTIMER_USEC = &_ztimer_convert_frac_usec.super.super;
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ztimer_clock_t *const ZTIMER_MSEC_BASE = &ZTIMER_RTT_CLK;
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# elif defined(ZTIMER_MSEC_TIMER)
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ztimer_clock_t *const ZTIMER_MSEC_BASE = &ZTIMER_TIMER_CLK;
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# elif defined(ZTIMER_MSEC_LPTIMER)
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ztimer_clock_t *const ZTIMER_MSEC_BASE = &ZTIMER_LPTIMER_CLK;
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# else
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# error No suitable ZTIMER_MSEC config. No rtt or basic timer?
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# endif
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@ -193,18 +234,19 @@ ztimer_clock_t *const ZTIMER_MSEC_BASE = &ZTIMER_TIMER_CLK;
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static ztimer_convert_frac_t _ztimer_convert_frac_msec;
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ztimer_clock_t *const ZTIMER_MSEC = &_ztimer_convert_frac_msec.super.super;
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# else
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ztimer_clock_t *const ZTIMER_MSEC = &ZTIMER_RTT_CLK;
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ztimer_clock_t *const ZTIMER_MSEC = ZTIMER_MSEC_BASE;
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# endif
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#endif
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#if MODULE_ZTIMER_SEC
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# ifdef ZTIMER_SEC_RTC
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ztimer_clock_t *const ZTIMER_SEC_BASE = &ZTIMER_RTC_CLK;
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ztimer_clock_t *const ZTIMER_SEC = &ZTIMER_RTC_CLK;
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# elif defined(ZTIMER_SEC_RTT)
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ztimer_clock_t *const ZTIMER_SEC_BASE = &ZTIMER_RTT_CLK;
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# elif defined(ZTIMER_SEC_TIMER)
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ztimer_clock_t *const ZTIMER_SEC_BASE = &ZTIMER_TIMER_CLK;
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# elif defined(ZTIMER_SEC_LPTIMER)
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ztimer_clock_t *const ZTIMER_SEC_BASE = &ZTIMER_LPTIMER_CLK;
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# else
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# error No suitable ZTIMER_SEC config. No rtc, rtt or basic timer?
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# endif
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@ -212,6 +254,8 @@ ztimer_clock_t *const ZTIMER_SEC_BASE = &ZTIMER_TIMER_CLK;
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# ifdef ZTIMER_SEC_CONVERT_LOWER_FREQ
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static ztimer_convert_frac_t _ztimer_convert_frac_sec;
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ztimer_clock_t *const ZTIMER_SEC = &_ztimer_convert_frac_sec.super.super;
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# else
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ztimer_clock_t *const ZTIMER_SEC = ZTIMER_SEC_BASE;
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# endif
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#endif
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@ -255,6 +299,20 @@ void ztimer_init(void)
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# endif
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#endif
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#if INIT_ZTIMER_LPTIMER
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LOG_DEBUG(
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"ztimer_init(): ZTIMER_LPTIMER using periph timer %u, freq %lu, width %u\n",
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CONFIG_ZTIMER_LPTIMER_DEV, ZTIMER_LPTIMER_FREQ,
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CONFIG_ZTIMER_LPTIMER_WIDTH);
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ztimer_periph_timer_init(&ZTIMER_LPTIMER, CONFIG_ZTIMER_LPTIMER_DEV,
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ZTIMER_LPTIMER_FREQ, WIDTH_TO_MAXVAL(CONFIG_ZTIMER_LPTIMER_WIDTH));
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# ifdef MODULE_PM_LAYERED
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LOG_DEBUG("ztimer_init(): ZTIMER_LPTIMER setting block_pm_mode to %i\n",
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CONFIG_ZTIMER_LPTIMER_BLOCK_PM_MODE);
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ZTIMER_LPTIMER_CLK.block_pm_mode = CONFIG_ZTIMER_LPTIMER_BLOCK_PM_MODE;
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# endif
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#endif
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#if INIT_ZTIMER_RTT
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LOG_DEBUG("ztimer_init(): initializing rtt\n");
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ztimer_periph_rtt_init(&ZTIMER_RTT);
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