diff options
Diffstat (limited to 'hw/mc146818rtc.c')
| -rw-r--r-- | hw/mc146818rtc.c | 49 |
1 files changed, 15 insertions, 34 deletions
diff --git a/hw/mc146818rtc.c b/hw/mc146818rtc.c index c3e6a70e3d..c3459bf605 100644 --- a/hw/mc146818rtc.c +++ b/hw/mc146818rtc.c @@ -27,7 +27,6 @@ #include "pc.h" #include "apic.h" #include "isa.h" -#include "hpet_emul.h" #include "mc146818rtc.h" //#define DEBUG_CMOS @@ -101,19 +100,6 @@ typedef struct RTCState { QEMUTimer *second_timer2; } RTCState; -static void rtc_irq_raise(qemu_irq irq) -{ - /* When HPET is operating in legacy mode, RTC interrupts are disabled - * We block qemu_irq_raise, but not qemu_irq_lower, in case legacy - * mode is established while interrupt is raised. We want it to - * be lowered in any case - */ -#if defined TARGET_I386 - if (!hpet_in_legacy_mode()) -#endif - qemu_irq_raise(irq); -} - static void rtc_set_time(RTCState *s); static void rtc_copy_date(RTCState *s); @@ -139,7 +125,7 @@ static void rtc_coalesced_timer(void *opaque) apic_reset_irq_delivered(); s->cmos_data[RTC_REG_C] |= 0xc0; DPRINTF_C("cmos: injecting from timer\n"); - rtc_irq_raise(s->irq); + qemu_irq_raise(s->irq); if (apic_get_irq_delivered()) { s->irq_coalesced--; DPRINTF_C("cmos: coalesced irqs decreased to %d\n", @@ -155,19 +141,10 @@ static void rtc_timer_update(RTCState *s, int64_t current_time) { int period_code, period; int64_t cur_clock, next_irq_clock; - int enable_pie; period_code = s->cmos_data[RTC_REG_A] & 0x0f; -#if defined TARGET_I386 - /* disable periodic timer if hpet is in legacy mode, since interrupts are - * disabled anyway. - */ - enable_pie = !hpet_in_legacy_mode(); -#else - enable_pie = 1; -#endif if (period_code != 0 - && (((s->cmos_data[RTC_REG_B] & REG_B_PIE) && enable_pie) + && ((s->cmos_data[RTC_REG_B] & REG_B_PIE) || ((s->cmos_data[RTC_REG_B] & REG_B_SQWE) && s->sqw_irq))) { if (period_code <= 2) period_code += 7; @@ -206,7 +183,7 @@ static void rtc_periodic_timer(void *opaque) if (s->irq_reinject_on_ack_count >= RTC_REINJECT_ON_ACK_COUNT) s->irq_reinject_on_ack_count = 0; apic_reset_irq_delivered(); - rtc_irq_raise(s->irq); + qemu_irq_raise(s->irq); if (!apic_get_irq_delivered()) { s->irq_coalesced++; rtc_coalesced_timer_update(s); @@ -215,7 +192,7 @@ static void rtc_periodic_timer(void *opaque) } } else #endif - rtc_irq_raise(s->irq); + qemu_irq_raise(s->irq); } if (s->cmos_data[RTC_REG_B] & REG_B_SQWE) { /* Not square wave at all but we don't want 2048Hz interrupts! @@ -444,15 +421,15 @@ static void rtc_update_second2(void *opaque) s->cmos_data[RTC_HOURS_ALARM] == s->current_tm.tm_hour)) { s->cmos_data[RTC_REG_C] |= 0xa0; - rtc_irq_raise(s->irq); + qemu_irq_raise(s->irq); } } /* update ended interrupt */ s->cmos_data[RTC_REG_C] |= REG_C_UF; if (s->cmos_data[RTC_REG_B] & REG_B_UIE) { - s->cmos_data[RTC_REG_C] |= REG_C_IRQF; - rtc_irq_raise(s->irq); + s->cmos_data[RTC_REG_C] |= REG_C_IRQF; + qemu_irq_raise(s->irq); } /* clear update in progress bit */ @@ -606,9 +583,6 @@ static int rtc_initfn(ISADevice *dev) { RTCState *s = DO_UPCAST(RTCState, dev, dev); int base = 0x70; - int isairq = 8; - - isa_init_irq(dev, &s->irq, isairq); s->cmos_data[RTC_REG_A] = 0x26; s->cmos_data[RTC_REG_B] = 0x02; @@ -638,13 +612,20 @@ static int rtc_initfn(ISADevice *dev) return 0; } -ISADevice *rtc_init(int base_year) +ISADevice *rtc_init(int base_year, qemu_irq intercept_irq) { ISADevice *dev; + RTCState *s; dev = isa_create("mc146818rtc"); + s = DO_UPCAST(RTCState, dev, dev); qdev_prop_set_int32(&dev->qdev, "base_year", base_year); qdev_init_nofail(&dev->qdev); + if (intercept_irq) { + s->irq = intercept_irq; + } else { + isa_init_irq(dev, &s->irq, RTC_ISA_IRQ); + } return dev; } |