| bcm2835_systimer.c (244758) | bcm2835_systimer.c (247463) |
|---|---|
| 1/* 2 * Copyright (c) 2012 Oleksandr Tymoshenko <gonzo@freebsd.org> 3 * Copyright (c) 2012 Damjan Marion <dmarion@freebsd.org> 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: --- 12 unchanged lines hidden (view full) --- 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28#include <sys/cdefs.h> | 1/* 2 * Copyright (c) 2012 Oleksandr Tymoshenko <gonzo@freebsd.org> 3 * Copyright (c) 2012 Damjan Marion <dmarion@freebsd.org> 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: --- 12 unchanged lines hidden (view full) --- 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28#include <sys/cdefs.h> |
| 29__FBSDID("$FreeBSD: head/sys/arm/broadcom/bcm2835/bcm2835_systimer.c 244758 2012-12-28 01:38:43Z gonzo $"); | 29__FBSDID("$FreeBSD: head/sys/arm/broadcom/bcm2835/bcm2835_systimer.c 247463 2013-02-28 13:46:03Z mav $"); |
| 30 31#include <sys/param.h> 32#include <sys/systm.h> 33#include <sys/bus.h> 34#include <sys/kernel.h> 35#include <sys/module.h> 36#include <sys/malloc.h> 37#include <sys/rman.h> --- 75 unchanged lines hidden (view full) --- 113 114static unsigned 115bcm_systimer_tc_get_timecount(struct timecounter *tc) 116{ 117 return bcm_systimer_tc_read_4(SYSTIMER_CLO); 118} 119 120static int | 30 31#include <sys/param.h> 32#include <sys/systm.h> 33#include <sys/bus.h> 34#include <sys/kernel.h> 35#include <sys/module.h> 36#include <sys/malloc.h> 37#include <sys/rman.h> --- 75 unchanged lines hidden (view full) --- 113 114static unsigned 115bcm_systimer_tc_get_timecount(struct timecounter *tc) 116{ 117 return bcm_systimer_tc_read_4(SYSTIMER_CLO); 118} 119 120static int |
| 121bcm_systimer_start(struct eventtimer *et, struct bintime *first, 122 struct bintime *period) | 121bcm_systimer_start(struct eventtimer *et, sbintime_t first, sbintime_t period) |
| 123{ 124 struct systimer *st = et->et_priv; 125 uint32_t clo; 126 uint32_t count; 127 register_t s; 128 | 122{ 123 struct systimer *st = et->et_priv; 124 uint32_t clo; 125 uint32_t count; 126 register_t s; 127 |
| 129 if (first != NULL) { | 128 if (first != 0) { |
| 130 | 129 |
| 131 count = (st->et.et_frequency * (first->frac >> 32)) >> 32; 132 if (first->sec != 0) 133 count += st->et.et_frequency * first->sec; | 130 count = ((uint32_t)et->et_frequency * first) >> 32; |
| 134 135 s = intr_disable(); 136 clo = bcm_systimer_tc_read_4(SYSTIMER_CLO); 137 clo += count; 138 /* 139 * Clear pending interrupts 140 */ 141 bcm_systimer_tc_write_4(SYSTIMER_CS, (1 << st->index)); --- 91 unchanged lines hidden (view full) --- 233 234 sc->st[DEFAULT_TIMER].index = DEFAULT_TIMER; 235 sc->st[DEFAULT_TIMER].enabled = 0; 236 sc->st[DEFAULT_TIMER].et.et_name = malloc(64, M_DEVBUF, M_NOWAIT | M_ZERO); 237 sprintf(sc->st[DEFAULT_TIMER].et.et_name, "BCM2835 Event Timer %d", DEFAULT_TIMER); 238 sc->st[DEFAULT_TIMER].et.et_flags = ET_FLAGS_ONESHOT; 239 sc->st[DEFAULT_TIMER].et.et_quality = 1000; 240 sc->st[DEFAULT_TIMER].et.et_frequency = sc->sysclk_freq; | 131 132 s = intr_disable(); 133 clo = bcm_systimer_tc_read_4(SYSTIMER_CLO); 134 clo += count; 135 /* 136 * Clear pending interrupts 137 */ 138 bcm_systimer_tc_write_4(SYSTIMER_CS, (1 << st->index)); --- 91 unchanged lines hidden (view full) --- 230 231 sc->st[DEFAULT_TIMER].index = DEFAULT_TIMER; 232 sc->st[DEFAULT_TIMER].enabled = 0; 233 sc->st[DEFAULT_TIMER].et.et_name = malloc(64, M_DEVBUF, M_NOWAIT | M_ZERO); 234 sprintf(sc->st[DEFAULT_TIMER].et.et_name, "BCM2835 Event Timer %d", DEFAULT_TIMER); 235 sc->st[DEFAULT_TIMER].et.et_flags = ET_FLAGS_ONESHOT; 236 sc->st[DEFAULT_TIMER].et.et_quality = 1000; 237 sc->st[DEFAULT_TIMER].et.et_frequency = sc->sysclk_freq; |
| 241 sc->st[DEFAULT_TIMER].et.et_min_period.sec = 0; 242 sc->st[DEFAULT_TIMER].et.et_min_period.frac = 243 ((MIN_PERIOD << 32) / sc->st[DEFAULT_TIMER].et.et_frequency) << 32; 244 sc->st[DEFAULT_TIMER].et.et_max_period.sec = 0xfffffff0U / sc->st[DEFAULT_TIMER].et.et_frequency; 245 sc->st[DEFAULT_TIMER].et.et_max_period.frac = 246 ((0xfffffffeLLU << 32) / sc->st[DEFAULT_TIMER].et.et_frequency) << 32; | 238 sc->st[DEFAULT_TIMER].et.et_min_period = 239 (MIN_PERIOD << 32) / sc->st[DEFAULT_TIMER].et.et_frequency; 240 sc->st[DEFAULT_TIMER].et.et_max_period = 241 (0xfffffffeLLU << 32) / sc->st[DEFAULT_TIMER].et.et_frequency; |
| 247 sc->st[DEFAULT_TIMER].et.et_start = bcm_systimer_start; 248 sc->st[DEFAULT_TIMER].et.et_stop = bcm_systimer_stop; 249 sc->st[DEFAULT_TIMER].et.et_priv = &sc->st[DEFAULT_TIMER]; 250 et_register(&sc->st[DEFAULT_TIMER].et); 251 252 bcm_systimer_sc = sc; 253 254 bcm_systimer_tc.tc_frequency = DEFAULT_FREQUENCY; --- 58 unchanged lines hidden --- | 242 sc->st[DEFAULT_TIMER].et.et_start = bcm_systimer_start; 243 sc->st[DEFAULT_TIMER].et.et_stop = bcm_systimer_stop; 244 sc->st[DEFAULT_TIMER].et.et_priv = &sc->st[DEFAULT_TIMER]; 245 et_register(&sc->st[DEFAULT_TIMER].et); 246 247 bcm_systimer_sc = sc; 248 249 bcm_systimer_tc.tc_frequency = DEFAULT_FREQUENCY; --- 58 unchanged lines hidden --- |