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| author | mav <mav@FreeBSD.org> | 2013-02-28 13:46:03 +0000 |
|---|---|---|
| committer | mav <mav@FreeBSD.org> | 2013-02-28 13:46:03 +0000 |
| commit | 6cf7cc6e4d8da1cf9aba1c481b914e4ca5e9f38f (patch) | |
| tree | c8556591f85961643a9b4ddfaaa7c1008bb03d81 /sys/arm/broadcom/bcm2835 | |
| parent | 240074414d4919ebd889f27087c72783a7ed9b19 (diff) | |
| download | FreeBSD-src-6cf7cc6e4d8da1cf9aba1c481b914e4ca5e9f38f.zip FreeBSD-src-6cf7cc6e4d8da1cf9aba1c481b914e4ca5e9f38f.tar.gz | |
MFcalloutng:
Switch eventtimers(9) from using struct bintime to sbintime_t.
Even before this not a single driver really supported full dynamic range of
struct bintime even in theory, not speaking about practical inexpediency.
This change legitimates the status quo and cleans up the code.
Diffstat (limited to 'sys/arm/broadcom/bcm2835')
| -rw-r--r-- | sys/arm/broadcom/bcm2835/bcm2835_systimer.c | 19 |
1 files changed, 7 insertions, 12 deletions
diff --git a/sys/arm/broadcom/bcm2835/bcm2835_systimer.c b/sys/arm/broadcom/bcm2835/bcm2835_systimer.c index 97ec43a..1d7fdda 100644 --- a/sys/arm/broadcom/bcm2835/bcm2835_systimer.c +++ b/sys/arm/broadcom/bcm2835/bcm2835_systimer.c @@ -118,19 +118,16 @@ bcm_systimer_tc_get_timecount(struct timecounter *tc) } static int -bcm_systimer_start(struct eventtimer *et, struct bintime *first, - struct bintime *period) +bcm_systimer_start(struct eventtimer *et, sbintime_t first, sbintime_t period) { struct systimer *st = et->et_priv; uint32_t clo; uint32_t count; register_t s; - if (first != NULL) { + if (first != 0) { - count = (st->et.et_frequency * (first->frac >> 32)) >> 32; - if (first->sec != 0) - count += st->et.et_frequency * first->sec; + count = ((uint32_t)et->et_frequency * first) >> 32; s = intr_disable(); clo = bcm_systimer_tc_read_4(SYSTIMER_CLO); @@ -238,12 +235,10 @@ bcm_systimer_attach(device_t dev) sc->st[DEFAULT_TIMER].et.et_flags = ET_FLAGS_ONESHOT; sc->st[DEFAULT_TIMER].et.et_quality = 1000; sc->st[DEFAULT_TIMER].et.et_frequency = sc->sysclk_freq; - sc->st[DEFAULT_TIMER].et.et_min_period.sec = 0; - sc->st[DEFAULT_TIMER].et.et_min_period.frac = - ((MIN_PERIOD << 32) / sc->st[DEFAULT_TIMER].et.et_frequency) << 32; - sc->st[DEFAULT_TIMER].et.et_max_period.sec = 0xfffffff0U / sc->st[DEFAULT_TIMER].et.et_frequency; - sc->st[DEFAULT_TIMER].et.et_max_period.frac = - ((0xfffffffeLLU << 32) / sc->st[DEFAULT_TIMER].et.et_frequency) << 32; + sc->st[DEFAULT_TIMER].et.et_min_period = + (MIN_PERIOD << 32) / sc->st[DEFAULT_TIMER].et.et_frequency; + sc->st[DEFAULT_TIMER].et.et_max_period = + (0xfffffffeLLU << 32) / sc->st[DEFAULT_TIMER].et.et_frequency; sc->st[DEFAULT_TIMER].et.et_start = bcm_systimer_start; sc->st[DEFAULT_TIMER].et.et_stop = bcm_systimer_stop; sc->st[DEFAULT_TIMER].et.et_priv = &sc->st[DEFAULT_TIMER]; |
