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Use EFI (or some reasonable simulation) to read the RTC.

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This commit is contained in:
Doug Rabson 2001-10-04 15:26:05 +00:00
parent 94d5f4bfd2
commit 377fa66e5e
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=84475
1 changed files with 26 additions and 49 deletions
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75
sys/ia64/ia64/sscclock.c → sys/ia64/ia64/eficlock.c
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@ -33,34 +33,10 @@
#include <sys/malloc.h>
#include <machine/clockvar.h>
struct ssc_time {
int year;
int month;
int day;
int hour;
int minute;
int second;
int msec;
int wday;
};
#define SSC_GET_RTC 65
static u_int64_t
ssc(u_int64_t in0, u_int64_t in1, u_int64_t in2, u_int64_t in3, int which)
{
register u_int64_t ret0 __asm("r8");
__asm __volatile("mov r15=%1\n\t"
"break 0x80001"
: "=r"(ret0)
: "r"(which), "r"(in0), "r"(in1), "r"(in2), "r"(in3));
return ret0;
}
#include <machine/efi.h>
static void
sscclock_init(device_t dev)
eficlock_init(kobj_t dev)
{
}
@ -68,54 +44,55 @@ sscclock_init(device_t dev)
* Get the time of day, based on the clock's value and/or the base value.
*/
static void
sscclock_get(device_t dev, time_t base, struct clocktime *ct)
eficlock_get(kobj_t dev, time_t base, struct clocktime *ct)
{
struct ssc_time time;
EFI_TIME time;
ssc(ia64_tpa((vm_offset_t) &time), 0, 0, 0, SSC_GET_RTC);
ia64_efi_runtime->GetTime(&time, 0);
ct->sec = time.second;
ct->min = time.minute;
ct->hour = time.hour;
ct->dow = time.wday;
ct->day = time.day;
ct->mon = time.month + 1;
ct->year = time.year;
ct->sec = time.Second;
ct->min = time.Minute;
ct->hour = time.Hour;
ct->dow = 0; /* XXX not used */
ct->day = time.Day;
ct->mon = time.Month;
ct->year = time.Year - 1900;
}
/*
* Reset the TODR based on the time value.
*/
static void
sscclock_set(device_t dev, struct clocktime *ct)
eficlock_set(kobj_t dev, struct clocktime *ct)
{
printf("sscclock: TODR not set\n");
printf("eficlock: TODR not set\n");
}
static int
sscclock_getsecs(device_t dev, int *secp)
eficlock_getsecs(kobj_t dev, int *secp)
{
return ETIMEDOUT;
}
static device_method_t sscclock_methods[] = {
static device_method_t eficlock_methods[] = {
/* clock interface */
DEVMETHOD(clock_init, sscclock_init),
DEVMETHOD(clock_get, sscclock_get),
DEVMETHOD(clock_set, sscclock_set),
DEVMETHOD(clock_getsecs, sscclock_getsecs),
DEVMETHOD(clock_init, eficlock_init),
DEVMETHOD(clock_get, eficlock_get),
DEVMETHOD(clock_set, eficlock_set),
DEVMETHOD(clock_getsecs, eficlock_getsecs),
{ 0, 0 }
};
DEFINE_CLASS(sscclock, sscclock_methods, sizeof(struct kobj));
DEFINE_CLASS(eficlock, eficlock_methods, sizeof(struct kobj));
static void
sscclock_create(void *arg)
eficlock_create(void *arg)
{
device_t clock = (device_t)
kobj_create(&sscclock_class, M_TEMP, M_NOWAIT);
kobj_t clock;
clock = (kobj_t)
kobj_create(&eficlock_class, M_TEMP, M_NOWAIT);
clockattach(clock);
}
SYSINIT(sscdev, SI_SUB_DRIVERS,SI_ORDER_MIDDLE, sscclock_create, NULL);
SYSINIT(eficlock, SI_SUB_DRIVERS,SI_ORDER_MIDDLE, eficlock_create, NULL);