diff options
Diffstat (limited to 'sys/amd64/isa/clock.c')
| -rw-r--r-- | sys/amd64/isa/clock.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/sys/amd64/isa/clock.c b/sys/amd64/isa/clock.c index 465ea9849601..b75f775077c6 100644 --- a/sys/amd64/isa/clock.c +++ b/sys/amd64/isa/clock.c @@ -53,6 +53,7 @@ #include <sys/param.h> #include <sys/systm.h> +#include <sys/bus.h> #include <sys/time.h> #include <sys/timetc.h> #include <sys/kernel.h> @@ -82,6 +83,7 @@ #include <i386/isa/icu.h> #include <i386/isa/isa.h> #include <isa/rtc.h> +#include <isa/isavar.h> #include <i386/isa/timerreg.h> #include <i386/isa/intr_machdep.h> @@ -1229,3 +1231,49 @@ tsc_get_timecount(struct timecounter *tc) { return (rdtsc()); } + +/* + * Attach to the ISA PnP descriptors for the timer and realtime clock. + */ +static struct isa_pnp_id attimer_ids[] = { + { 0x0001d041 /* PNP0100 */, "AT timer" }, + { 0x000bd041 /* PNP0B00 */, "AT realtime clock" }, + { 0 } +}; + +static int +attimer_probe(device_t dev) +{ + int result; + + if ((result = ISA_PNP_PROBE(device_get_parent(dev), dev, attimer_ids)) <= 0) + device_quiet(dev); + return(result); +} + +static int +attimer_attach(device_t dev) +{ + return(0); +} + +static device_method_t attimer_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, attimer_probe), + DEVMETHOD(device_attach, attimer_attach), + DEVMETHOD(device_detach, bus_generic_detach), + DEVMETHOD(device_shutdown, bus_generic_shutdown), + DEVMETHOD(device_suspend, bus_generic_suspend), /* XXX stop statclock? */ + DEVMETHOD(device_resume, bus_generic_resume), /* XXX restart statclock? */ + { 0, 0 } +}; + +static driver_t attimer_driver = { + "attimer", + attimer_methods, + 1, /* no softc */ +}; + +static devclass_t attimer_devclass; + +DRIVER_MODULE(attimer, isa, attimer_driver, attimer_devclass, 0, 0); |