diff options
Diffstat (limited to 'sys/arch/hppa')
| -rw-r--r-- | sys/arch/hppa/hppa/machdep.c | 63 | ||||
| -rw-r--r-- | sys/arch/hppa/include/cpu.h | 18 |
2 files changed, 78 insertions, 3 deletions
diff --git a/sys/arch/hppa/hppa/machdep.c b/sys/arch/hppa/hppa/machdep.c index 1cbfb3e5bd5..fa70316f465 100644 --- a/sys/arch/hppa/hppa/machdep.c +++ b/sys/arch/hppa/hppa/machdep.c @@ -1,4 +1,4 @@ -/* $OpenBSD: machdep.c,v 1.162 2007/07/15 19:25:49 kettenis Exp $ */ +/* $OpenBSD: machdep.c,v 1.163 2007/07/20 22:12:39 kettenis Exp $ */ /* * Copyright (c) 1999-2003 Michael Shalayeff @@ -141,6 +141,8 @@ u_int fpu_version; int cpu_model_hpux; /* contains HPUX_SYSCONF_CPU* kind of value */ #endif +int led_blink; + /* * exported methods for cpus */ @@ -172,6 +174,7 @@ static __inline void fall(int, int, int, int, int); void dumpsys(void); void hpmc_dump(void); void cpuid(void); +void blink_led_timeout(void *); /* * wide used hardware params @@ -1611,6 +1614,7 @@ cpu_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p) extern u_int fpu_enable; extern int cpu_fpuena; dev_t consdev; + int oldval, ret; /* all sysctl names at this level are terminal */ if (namelen != 1) @@ -1631,6 +1635,15 @@ cpu_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p) mtctl(0, CR_CCR); } return (sysctl_int(oldp, oldlenp, newp, newlen, &cpu_fpuena)); + case CPU_LED_BLINK: + oldval = led_blink; + ret = sysctl_int(oldp, oldlenp, newp, newlen, &led_blink); + /* + * If we were false and are now true, start the timer. + */ + if (!oldval && led_blink > oldval) + blink_led_timeout(NULL); + return (ret); default: return (EOPNOTSUPP); } @@ -1649,3 +1662,51 @@ consinit(void) * Initial console setup has been done in pdc_init(). */ } + + +struct blink_led_softc { + SLIST_HEAD(, blink_led) bls_head; + int bls_on; + struct timeout bls_to; +} blink_sc = { SLIST_HEAD_INITIALIZER(bls_head), 0 }; + +void +blink_led_register(struct blink_led *l) +{ + if (SLIST_EMPTY(&blink_sc.bls_head)) { + timeout_set(&blink_sc.bls_to, blink_led_timeout, &blink_sc); + blink_sc.bls_on = 0; + if (led_blink) + timeout_add(&blink_sc.bls_to, 1); + } + SLIST_INSERT_HEAD(&blink_sc.bls_head, l, bl_next); +} + +void +blink_led_timeout(void *vsc) +{ + struct blink_led_softc *sc = &blink_sc; + struct blink_led *l; + int t; + + if (SLIST_EMPTY(&sc->bls_head)) + return; + + SLIST_FOREACH(l, &sc->bls_head, bl_next) { + (*l->bl_func)(l->bl_arg, sc->bls_on); + } + sc->bls_on = !sc->bls_on; + + if (!led_blink) + return; + + /* + * Blink rate is: + * full cycle every second if completely idle (loadav = 0) + * full cycle every 2 seconds if loadav = 1 + * full cycle every 3 seconds if loadav = 2 + * etc. + */ + t = (((averunnable.ldavg[0] + FSCALE) * hz) >> (FSHIFT + 1)); + timeout_add(&sc->bls_to, t); +} diff --git a/sys/arch/hppa/include/cpu.h b/sys/arch/hppa/include/cpu.h index 1ee24418b68..58586ebc26a 100644 --- a/sys/arch/hppa/include/cpu.h +++ b/sys/arch/hppa/include/cpu.h @@ -1,4 +1,4 @@ -/* $OpenBSD: cpu.h,v 1.50 2007/05/15 16:03:52 miod Exp $ */ +/* $OpenBSD: cpu.h,v 1.51 2007/07/20 22:12:39 kettenis Exp $ */ /* * Copyright (c) 2000-2004 Michael Shalayeff @@ -190,13 +190,27 @@ int cpu_dump(void); */ #define CPU_CONSDEV 1 /* dev_t: console terminal device */ #define CPU_FPU 2 /* int: fpu present/enabled */ -#define CPU_MAXID 3 /* number of valid machdep ids */ +#define CPU_LED_BLINK 3 /* int: twiddle heartbeat LED/LCD */ +#define CPU_MAXID 4 /* number of valid machdep ids */ #define CTL_MACHDEP_NAMES { \ { 0, 0 }, \ { "console_device", CTLTYPE_STRUCT }, \ { "fpu", CTLTYPE_INT }, \ + { "led_blink", CTLTYPE_INT }, \ } + +#ifdef _KERNEL +#include <sys/queue.h> + +struct blink_led { + void (*bl_func)(void *, int); + void *bl_arg; + SLIST_ENTRY(blink_led) bl_next; +}; + +extern void blink_led_register(struct blink_led *); +#endif #endif #endif /* _MACHINE_CPU_H_ */ |