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authorPaolo Bonzini <pbonzini@redhat.com>2013-03-01 13:59:19 +0100
committerPaolo Bonzini <pbonzini@redhat.com>2013-04-08 18:13:12 +0200
commit49ab747f668f421138d5b40d83fa279c4c5e278d (patch)
tree943225a04eac885aed038731adf058f2250a2f40 /hw/hpet.c
parentce3b494cb504f96992f2d37ebc8f56deed202b06 (diff)
hw: move target-independent files to subdirectories
This patch tackles all files that are compiled once, moving them to subdirectories of hw/. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw/hpet.c')
-rw-r--r--hw/hpet.c760
1 files changed, 0 insertions, 760 deletions
diff --git a/hw/hpet.c b/hw/hpet.c
deleted file mode 100644
index 95dd01d147..0000000000
--- a/hw/hpet.c
+++ /dev/null
@@ -1,760 +0,0 @@
-/*
- * High Precisition Event Timer emulation
- *
- * Copyright (c) 2007 Alexander Graf
- * Copyright (c) 2008 IBM Corporation
- *
- * Authors: Beth Kon <bkon@us.ibm.com>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, see <http://www.gnu.org/licenses/>.
- *
- * *****************************************************************
- *
- * This driver attempts to emulate an HPET device in software.
- */
-
-#include "hw/hw.h"
-#include "hw/i386/pc.h"
-#include "ui/console.h"
-#include "qemu/timer.h"
-#include "hw/timer/hpet.h"
-#include "hw/sysbus.h"
-#include "hw/timer/mc146818rtc.h"
-#include "hw/timer/i8254.h"
-
-//#define HPET_DEBUG
-#ifdef HPET_DEBUG
-#define DPRINTF printf
-#else
-#define DPRINTF(...)
-#endif
-
-#define HPET_MSI_SUPPORT 0
-
-struct HPETState;
-typedef struct HPETTimer { /* timers */
- uint8_t tn; /*timer number*/
- QEMUTimer *qemu_timer;
- struct HPETState *state;
- /* Memory-mapped, software visible timer registers */
- uint64_t config; /* configuration/cap */
- uint64_t cmp; /* comparator */
- uint64_t fsb; /* FSB route */
- /* Hidden register state */
- uint64_t period; /* Last value written to comparator */
- uint8_t wrap_flag; /* timer pop will indicate wrap for one-shot 32-bit
- * mode. Next pop will be actual timer expiration.
- */
-} HPETTimer;
-
-typedef struct HPETState {
- SysBusDevice busdev;
- MemoryRegion iomem;
- uint64_t hpet_offset;
- qemu_irq irqs[HPET_NUM_IRQ_ROUTES];
- uint32_t flags;
- uint8_t rtc_irq_level;
- qemu_irq pit_enabled;
- uint8_t num_timers;
- HPETTimer timer[HPET_MAX_TIMERS];
-
- /* Memory-mapped, software visible registers */
- uint64_t capability; /* capabilities */
- uint64_t config; /* configuration */
- uint64_t isr; /* interrupt status reg */
- uint64_t hpet_counter; /* main counter */
- uint8_t hpet_id; /* instance id */
-} HPETState;
-
-static uint32_t hpet_in_legacy_mode(HPETState *s)
-{
- return s->config & HPET_CFG_LEGACY;
-}
-
-static uint32_t timer_int_route(struct HPETTimer *timer)
-{
- return (timer->config & HPET_TN_INT_ROUTE_MASK) >> HPET_TN_INT_ROUTE_SHIFT;
-}
-
-static uint32_t timer_fsb_route(HPETTimer *t)
-{
- return t->config & HPET_TN_FSB_ENABLE;
-}
-
-static uint32_t hpet_enabled(HPETState *s)
-{
- return s->config & HPET_CFG_ENABLE;
-}
-
-static uint32_t timer_is_periodic(HPETTimer *t)
-{
- return t->config & HPET_TN_PERIODIC;
-}
-
-static uint32_t timer_enabled(HPETTimer *t)
-{
- return t->config & HPET_TN_ENABLE;
-}
-
-static uint32_t hpet_time_after(uint64_t a, uint64_t b)
-{
- return ((int32_t)(b) - (int32_t)(a) < 0);
-}
-
-static uint32_t hpet_time_after64(uint64_t a, uint64_t b)
-{
- return ((int64_t)(b) - (int64_t)(a) < 0);
-}
-
-static uint64_t ticks_to_ns(uint64_t value)
-{
- return (muldiv64(value, HPET_CLK_PERIOD, FS_PER_NS));
-}
-
-static uint64_t ns_to_ticks(uint64_t value)
-{
- return (muldiv64(value, FS_PER_NS, HPET_CLK_PERIOD));
-}
-
-static uint64_t hpet_fixup_reg(uint64_t new, uint64_t old, uint64_t mask)
-{
- new &= mask;
- new |= old & ~mask;
- return new;
-}
-
-static int activating_bit(uint64_t old, uint64_t new, uint64_t mask)
-{
- return (!(old & mask) && (new & mask));
-}
-
-static int deactivating_bit(uint64_t old, uint64_t new, uint64_t mask)
-{
- return ((old & mask) && !(new & mask));
-}
-
-static uint64_t hpet_get_ticks(HPETState *s)
-{
- return ns_to_ticks(qemu_get_clock_ns(vm_clock) + s->hpet_offset);
-}
-
-/*
- * calculate diff between comparator value and current ticks
- */
-static inline uint64_t hpet_calculate_diff(HPETTimer *t, uint64_t current)
-{
-
- if (t->config & HPET_TN_32BIT) {
- uint32_t diff, cmp;
-
- cmp = (uint32_t)t->cmp;
- diff = cmp - (uint32_t)current;
- diff = (int32_t)diff > 0 ? diff : (uint32_t)1;
- return (uint64_t)diff;
- } else {
- uint64_t diff, cmp;
-
- cmp = t->cmp;
- diff = cmp - current;
- diff = (int64_t)diff > 0 ? diff : (uint64_t)1;
- return diff;
- }
-}
-
-static void update_irq(struct HPETTimer *timer, int set)
-{
- uint64_t mask;
- HPETState *s;
- int route;
-
- if (timer->tn <= 1 && hpet_in_legacy_mode(timer->state)) {
- /* if LegacyReplacementRoute bit is set, HPET specification requires
- * timer0 be routed to IRQ0 in NON-APIC or IRQ2 in the I/O APIC,
- * timer1 be routed to IRQ8 in NON-APIC or IRQ8 in the I/O APIC.
- */
- route = (timer->tn == 0) ? 0 : RTC_ISA_IRQ;
- } else {
- route = timer_int_route(timer);
- }
- s = timer->state;
- mask = 1 << timer->tn;
- if (!set || !timer_enabled(timer) || !hpet_enabled(timer->state)) {
- s->isr &= ~mask;
- if (!timer_fsb_route(timer)) {
- qemu_irq_lower(s->irqs[route]);
- }
- } else if (timer_fsb_route(timer)) {
- stl_le_phys(timer->fsb >> 32, timer->fsb & 0xffffffff);
- } else if (timer->config & HPET_TN_TYPE_LEVEL) {
- s->isr |= mask;
- qemu_irq_raise(s->irqs[route]);
- } else {
- s->isr &= ~mask;
- qemu_irq_pulse(s->irqs[route]);
- }
-}
-
-static void hpet_pre_save(void *opaque)
-{
- HPETState *s = opaque;
-
- /* save current counter value */
- s->hpet_counter = hpet_get_ticks(s);
-}
-
-static int hpet_pre_load(void *opaque)
-{
- HPETState *s = opaque;
-
- /* version 1 only supports 3, later versions will load the actual value */
- s->num_timers = HPET_MIN_TIMERS;
- return 0;
-}
-
-static int hpet_post_load(void *opaque, int version_id)
-{
- HPETState *s = opaque;
-
- /* Recalculate the offset between the main counter and guest time */
- s->hpet_offset = ticks_to_ns(s->hpet_counter) - qemu_get_clock_ns(vm_clock);
-
- /* Push number of timers into capability returned via HPET_ID */
- s->capability &= ~HPET_ID_NUM_TIM_MASK;
- s->capability |= (s->num_timers - 1) << HPET_ID_NUM_TIM_SHIFT;
- hpet_cfg.hpet[s->hpet_id].event_timer_block_id = (uint32_t)s->capability;
-
- /* Derive HPET_MSI_SUPPORT from the capability of the first timer. */
- s->flags &= ~(1 << HPET_MSI_SUPPORT);
- if (s->timer[0].config & HPET_TN_FSB_CAP) {
- s->flags |= 1 << HPET_MSI_SUPPORT;
- }
- return 0;
-}
-
-static bool hpet_rtc_irq_level_needed(void *opaque)
-{
- HPETState *s = opaque;
-
- return s->rtc_irq_level != 0;
-}
-
-static const VMStateDescription vmstate_hpet_rtc_irq_level = {
- .name = "hpet/rtc_irq_level",
- .version_id = 1,
- .minimum_version_id = 1,
- .minimum_version_id_old = 1,
- .fields = (VMStateField[]) {
- VMSTATE_UINT8(rtc_irq_level, HPETState),
- VMSTATE_END_OF_LIST()
- }
-};
-
-static const VMStateDescription vmstate_hpet_timer = {
- .name = "hpet_timer",
- .version_id = 1,
- .minimum_version_id = 1,
- .minimum_version_id_old = 1,
- .fields = (VMStateField []) {
- VMSTATE_UINT8(tn, HPETTimer),
- VMSTATE_UINT64(config, HPETTimer),
- VMSTATE_UINT64(cmp, HPETTimer),
- VMSTATE_UINT64(fsb, HPETTimer),
- VMSTATE_UINT64(period, HPETTimer),
- VMSTATE_UINT8(wrap_flag, HPETTimer),
- VMSTATE_TIMER(qemu_timer, HPETTimer),
- VMSTATE_END_OF_LIST()
- }
-};
-
-static const VMStateDescription vmstate_hpet = {
- .name = "hpet",
- .version_id = 2,
- .minimum_version_id = 1,
- .minimum_version_id_old = 1,
- .pre_save = hpet_pre_save,
- .pre_load = hpet_pre_load,
- .post_load = hpet_post_load,
- .fields = (VMStateField []) {
- VMSTATE_UINT64(config, HPETState),
- VMSTATE_UINT64(isr, HPETState),
- VMSTATE_UINT64(hpet_counter, HPETState),
- VMSTATE_UINT8_V(num_timers, HPETState, 2),
- VMSTATE_STRUCT_VARRAY_UINT8(timer, HPETState, num_timers, 0,
- vmstate_hpet_timer, HPETTimer),
- VMSTATE_END_OF_LIST()
- },
- .subsections = (VMStateSubsection[]) {
- {
- .vmsd = &vmstate_hpet_rtc_irq_level,
- .needed = hpet_rtc_irq_level_needed,
- }, {
- /* empty */
- }
- }
-};
-
-/*
- * timer expiration callback
- */
-static void hpet_timer(void *opaque)
-{
- HPETTimer *t = opaque;
- uint64_t diff;
-
- uint64_t period = t->period;
- uint64_t cur_tick = hpet_get_ticks(t->state);
-
- if (timer_is_periodic(t) && period != 0) {
- if (t->config & HPET_TN_32BIT) {
- while (hpet_time_after(cur_tick, t->cmp)) {
- t->cmp = (uint32_t)(t->cmp + t->period);
- }
- } else {
- while (hpet_time_after64(cur_tick, t->cmp)) {
- t->cmp += period;
- }
- }
- diff = hpet_calculate_diff(t, cur_tick);
- qemu_mod_timer(t->qemu_timer,
- qemu_get_clock_ns(vm_clock) + (int64_t)ticks_to_ns(diff));
- } else if (t->config & HPET_TN_32BIT && !timer_is_periodic(t)) {
- if (t->wrap_flag) {
- diff = hpet_calculate_diff(t, cur_tick);
- qemu_mod_timer(t->qemu_timer, qemu_get_clock_ns(vm_clock) +
- (int64_t)ticks_to_ns(diff));
- t->wrap_flag = 0;
- }
- }
- update_irq(t, 1);
-}
-
-static void hpet_set_timer(HPETTimer *t)
-{
- uint64_t diff;
- uint32_t wrap_diff; /* how many ticks until we wrap? */
- uint64_t cur_tick = hpet_get_ticks(t->state);
-
- /* whenever new timer is being set up, make sure wrap_flag is 0 */
- t->wrap_flag = 0;
- diff = hpet_calculate_diff(t, cur_tick);
-
- /* hpet spec says in one-shot 32-bit mode, generate an interrupt when
- * counter wraps in addition to an interrupt with comparator match.
- */
- if (t->config & HPET_TN_32BIT && !timer_is_periodic(t)) {
- wrap_diff = 0xffffffff - (uint32_t)cur_tick;
- if (wrap_diff < (uint32_t)diff) {
- diff = wrap_diff;
- t->wrap_flag = 1;
- }
- }
- qemu_mod_timer(t->qemu_timer,
- qemu_get_clock_ns(vm_clock) + (int64_t)ticks_to_ns(diff));
-}
-
-static void hpet_del_timer(HPETTimer *t)
-{
- qemu_del_timer(t->qemu_timer);
- update_irq(t, 0);
-}
-
-#ifdef HPET_DEBUG
-static uint32_t hpet_ram_readb(void *opaque, hwaddr addr)
-{
- printf("qemu: hpet_read b at %" PRIx64 "\n", addr);
- return 0;
-}
-
-static uint32_t hpet_ram_readw(void *opaque, hwaddr addr)
-{
- printf("qemu: hpet_read w at %" PRIx64 "\n", addr);
- return 0;
-}
-#endif
-
-static uint64_t hpet_ram_read(void *opaque, hwaddr addr,
- unsigned size)
-{
- HPETState *s = opaque;
- uint64_t cur_tick, index;
-
- DPRINTF("qemu: Enter hpet_ram_readl at %" PRIx64 "\n", addr);
- index = addr;
- /*address range of all TN regs*/
- if (index >= 0x100 && index <= 0x3ff) {
- uint8_t timer_id = (addr - 0x100) / 0x20;
- HPETTimer *timer = &s->timer[timer_id];
-
- if (timer_id > s->num_timers) {
- DPRINTF("qemu: timer id out of range\n");
- return 0;
- }
-
- switch ((addr - 0x100) % 0x20) {
- case HPET_TN_CFG:
- return timer->config;
- case HPET_TN_CFG + 4: // Interrupt capabilities
- return timer->config >> 32;
- case HPET_TN_CMP: // comparator register
- return timer->cmp;
- case HPET_TN_CMP + 4:
- return timer->cmp >> 32;
- case HPET_TN_ROUTE:
- return timer->fsb;
- case HPET_TN_ROUTE + 4:
- return timer->fsb >> 32;
- default:
- DPRINTF("qemu: invalid hpet_ram_readl\n");
- break;
- }
- } else {
- switch (index) {
- case HPET_ID:
- return s->capability;
- case HPET_PERIOD:
- return s->capability >> 32;
- case HPET_CFG:
- return s->config;
- case HPET_CFG + 4:
- DPRINTF("qemu: invalid HPET_CFG + 4 hpet_ram_readl\n");
- return 0;
- case HPET_COUNTER:
- if (hpet_enabled(s)) {
- cur_tick = hpet_get_ticks(s);
- } else {
- cur_tick = s->hpet_counter;
- }
- DPRINTF("qemu: reading counter = %" PRIx64 "\n", cur_tick);
- return cur_tick;
- case HPET_COUNTER + 4:
- if (hpet_enabled(s)) {
- cur_tick = hpet_get_ticks(s);
- } else {
- cur_tick = s->hpet_counter;
- }
- DPRINTF("qemu: reading counter + 4 = %" PRIx64 "\n", cur_tick);
- return cur_tick >> 32;
- case HPET_STATUS:
- return s->isr;
- default:
- DPRINTF("qemu: invalid hpet_ram_readl\n");
- break;
- }
- }
- return 0;
-}
-
-static void hpet_ram_write(void *opaque, hwaddr addr,
- uint64_t value, unsigned size)
-{
- int i;
- HPETState *s = opaque;
- uint64_t old_val, new_val, val, index;
-
- DPRINTF("qemu: Enter hpet_ram_writel at %" PRIx64 " = %#x\n", addr, value);
- index = addr;
- old_val = hpet_ram_read(opaque, addr, 4);
- new_val = value;
-
- /*address range of all TN regs*/
- if (index >= 0x100 && index <= 0x3ff) {
- uint8_t timer_id = (addr - 0x100) / 0x20;
- HPETTimer *timer = &s->timer[timer_id];
-
- DPRINTF("qemu: hpet_ram_writel timer_id = %#x\n", timer_id);
- if (timer_id > s->num_timers) {
- DPRINTF("qemu: timer id out of range\n");
- return;
- }
- switch ((addr - 0x100) % 0x20) {
- case HPET_TN_CFG:
- DPRINTF("qemu: hpet_ram_writel HPET_TN_CFG\n");
- if (activating_bit(old_val, new_val, HPET_TN_FSB_ENABLE)) {
- update_irq(timer, 0);
- }
- val = hpet_fixup_reg(new_val, old_val, HPET_TN_CFG_WRITE_MASK);
- timer->config = (timer->config & 0xffffffff00000000ULL) | val;
- if (new_val & HPET_TN_32BIT) {
- timer->cmp = (uint32_t)timer->cmp;
- timer->period = (uint32_t)timer->period;
- }
- if (activating_bit(old_val, new_val, HPET_TN_ENABLE)) {
- hpet_set_timer(timer);
- } else if (deactivating_bit(old_val, new_val, HPET_TN_ENABLE)) {
- hpet_del_timer(timer);
- }
- break;
- case HPET_TN_CFG + 4: // Interrupt capabilities
- DPRINTF("qemu: invalid HPET_TN_CFG+4 write\n");
- break;
- case HPET_TN_CMP: // comparator register
- DPRINTF("qemu: hpet_ram_writel HPET_TN_CMP\n");
- if (timer->config & HPET_TN_32BIT) {
- new_val = (uint32_t)new_val;
- }
- if (!timer_is_periodic(timer)
- || (timer->config & HPET_TN_SETVAL)) {
- timer->cmp = (timer->cmp & 0xffffffff00000000ULL) | new_val;
- }
- if (timer_is_periodic(timer)) {
- /*
- * FIXME: Clamp period to reasonable min value?
- * Clamp period to reasonable max value
- */
- new_val &= (timer->config & HPET_TN_32BIT ? ~0u : ~0ull) >> 1;
- timer->period =
- (timer->period & 0xffffffff00000000ULL) | new_val;
- }
- timer->config &= ~HPET_TN_SETVAL;
- if (hpet_enabled(s)) {
- hpet_set_timer(timer);
- }
- break;
- case HPET_TN_CMP + 4: // comparator register high order
- DPRINTF("qemu: hpet_ram_writel HPET_TN_CMP + 4\n");
- if (!timer_is_periodic(timer)
- || (timer->config & HPET_TN_SETVAL)) {
- timer->cmp = (timer->cmp & 0xffffffffULL) | new_val << 32;
- } else {
- /*
- * FIXME: Clamp period to reasonable min value?
- * Clamp period to reasonable max value
- */
- new_val &= (timer->config & HPET_TN_32BIT ? ~0u : ~0ull) >> 1;
- timer->period =
- (timer->period & 0xffffffffULL) | new_val << 32;
- }
- timer->config &= ~HPET_TN_SETVAL;
- if (hpet_enabled(s)) {
- hpet_set_timer(timer);
- }
- break;
- case HPET_TN_ROUTE:
- timer->fsb = (timer->fsb & 0xffffffff00000000ULL) | new_val;
- break;
- case HPET_TN_ROUTE + 4:
- timer->fsb = (new_val << 32) | (timer->fsb & 0xffffffff);
- break;
- default:
- DPRINTF("qemu: invalid hpet_ram_writel\n");
- break;
- }
- return;
- } else {
- switch (index) {
- case HPET_ID:
- return;
- case HPET_CFG:
- val = hpet_fixup_reg(new_val, old_val, HPET_CFG_WRITE_MASK);
- s->config = (s->config & 0xffffffff00000000ULL) | val;
- if (activating_bit(old_val, new_val, HPET_CFG_ENABLE)) {
- /* Enable main counter and interrupt generation. */
- s->hpet_offset =
- ticks_to_ns(s->hpet_counter) - qemu_get_clock_ns(vm_clock);
- for (i = 0; i < s->num_timers; i++) {
- if ((&s->timer[i])->cmp != ~0ULL) {
- hpet_set_timer(&s->timer[i]);
- }
- }
- } else if (deactivating_bit(old_val, new_val, HPET_CFG_ENABLE)) {
- /* Halt main counter and disable interrupt generation. */
- s->hpet_counter = hpet_get_ticks(s);
- for (i = 0; i < s->num_timers; i++) {
- hpet_del_timer(&s->timer[i]);
- }
- }
- /* i8254 and RTC output pins are disabled
- * when HPET is in legacy mode */
- if (activating_bit(old_val, new_val, HPET_CFG_LEGACY)) {
- qemu_set_irq(s->pit_enabled, 0);
- qemu_irq_lower(s->irqs[0]);
- qemu_irq_lower(s->irqs[RTC_ISA_IRQ]);
- } else if (deactivating_bit(old_val, new_val, HPET_CFG_LEGACY)) {
- qemu_irq_lower(s->irqs[0]);
- qemu_set_irq(s->pit_enabled, 1);
- qemu_set_irq(s->irqs[RTC_ISA_IRQ], s->rtc_irq_level);
- }
- break;
- case HPET_CFG + 4:
- DPRINTF("qemu: invalid HPET_CFG+4 write\n");
- break;
- case HPET_STATUS:
- val = new_val & s->isr;
- for (i = 0; i < s->num_timers; i++) {
- if (val & (1 << i)) {
- update_irq(&s->timer[i], 0);
- }
- }
- break;
- case HPET_COUNTER:
- if (hpet_enabled(s)) {
- DPRINTF("qemu: Writing counter while HPET enabled!\n");
- }
- s->hpet_counter =
- (s->hpet_counter & 0xffffffff00000000ULL) | value;
- DPRINTF("qemu: HPET counter written. ctr = %#x -> %" PRIx64 "\n",
- value, s->hpet_counter);
- break;
- case HPET_COUNTER + 4:
- if (hpet_enabled(s)) {
- DPRINTF("qemu: Writing counter while HPET enabled!\n");
- }
- s->hpet_counter =
- (s->hpet_counter & 0xffffffffULL) | (((uint64_t)value) << 32);
- DPRINTF("qemu: HPET counter + 4 written. ctr = %#x -> %" PRIx64 "\n",
- value, s->hpet_counter);
- break;
- default:
- DPRINTF("qemu: invalid hpet_ram_writel\n");
- break;
- }
- }
-}
-
-static const MemoryRegionOps hpet_ram_ops = {
- .read = hpet_ram_read,
- .write = hpet_ram_write,
- .valid = {
- .min_access_size = 4,
- .max_access_size = 4,
- },
- .endianness = DEVICE_NATIVE_ENDIAN,
-};
-
-static void hpet_reset(DeviceState *d)
-{
- HPETState *s = FROM_SYSBUS(HPETState, SYS_BUS_DEVICE(d));
- int i;
-
- for (i = 0; i < s->num_timers; i++) {
- HPETTimer *timer = &s->timer[i];
-
- hpet_del_timer(timer);
- timer->cmp = ~0ULL;
- timer->config = HPET_TN_PERIODIC_CAP | HPET_TN_SIZE_CAP;
- if (s->flags & (1 << HPET_MSI_SUPPORT)) {
- timer->config |= HPET_TN_FSB_CAP;
- }
- /* advertise availability of ioapic inti2 */
- timer->config |= 0x00000004ULL << 32;
- timer->period = 0ULL;
- timer->wrap_flag = 0;
- }
-
- qemu_set_irq(s->pit_enabled, 1);
- s->hpet_counter = 0ULL;
- s->hpet_offset = 0ULL;
- s->config = 0ULL;
- hpet_cfg.hpet[s->hpet_id].event_timer_block_id = (uint32_t)s->capability;
- hpet_cfg.hpet[s->hpet_id].address = SYS_BUS_DEVICE(d)->mmio[0].addr;
-
- /* to document that the RTC lowers its output on reset as well */
- s->rtc_irq_level = 0;
-}
-
-static void hpet_handle_legacy_irq(void *opaque, int n, int level)
-{
- HPETState *s = FROM_SYSBUS(HPETState, opaque);
-
- if (n == HPET_LEGACY_PIT_INT) {
- if (!hpet_in_legacy_mode(s)) {
- qemu_set_irq(s->irqs[0], level);
- }
- } else {
- s->rtc_irq_level = level;
- if (!hpet_in_legacy_mode(s)) {
- qemu_set_irq(s->irqs[RTC_ISA_IRQ], level);
- }
- }
-}
-
-static int hpet_init(SysBusDevice *dev)
-{
- HPETState *s = FROM_SYSBUS(HPETState, dev);
- int i;
- HPETTimer *timer;
-
- if (hpet_cfg.count == UINT8_MAX) {
- /* first instance */
- hpet_cfg.count = 0;
- }
-
- if (hpet_cfg.count == 8) {
- fprintf(stderr, "Only 8 instances of HPET is allowed\n");
- return -1;
- }
-
- s->hpet_id = hpet_cfg.count++;
-
- for (i = 0; i < HPET_NUM_IRQ_ROUTES; i++) {
- sysbus_init_irq(dev, &s->irqs[i]);
- }
-
- if (s->num_timers < HPET_MIN_TIMERS) {
- s->num_timers = HPET_MIN_TIMERS;
- } else if (s->num_timers > HPET_MAX_TIMERS) {
- s->num_timers = HPET_MAX_TIMERS;
- }
- for (i = 0; i < HPET_MAX_TIMERS; i++) {
- timer = &s->timer[i];
- timer->qemu_timer = qemu_new_timer_ns(vm_clock, hpet_timer, timer);
- timer->tn = i;
- timer->state = s;
- }
-
- /* 64-bit main counter; LegacyReplacementRoute. */
- s->capability = 0x8086a001ULL;
- s->capability |= (s->num_timers - 1) << HPET_ID_NUM_TIM_SHIFT;
- s->capability |= ((HPET_CLK_PERIOD) << 32);
-
- qdev_init_gpio_in(&dev->qdev, hpet_handle_legacy_irq, 2);
- qdev_init_gpio_out(&dev->qdev, &s->pit_enabled, 1);
-
- /* HPET Area */
- memory_region_init_io(&s->iomem, &hpet_ram_ops, s, "hpet", 0x400);
- sysbus_init_mmio(dev, &s->iomem);
- return 0;
-}
-
-static Property hpet_device_properties[] = {
- DEFINE_PROP_UINT8("timers", HPETState, num_timers, HPET_MIN_TIMERS),
- DEFINE_PROP_BIT("msi", HPETState, flags, HPET_MSI_SUPPORT, false),
- DEFINE_PROP_END_OF_LIST(),
-};
-
-static void hpet_device_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
-
- k->init = hpet_init;
- dc->no_user = 1;
- dc->reset = hpet_reset;
- dc->vmsd = &vmstate_hpet;
- dc->props = hpet_device_properties;
-}
-
-static const TypeInfo hpet_device_info = {
- .name = "hpet",
- .parent = TYPE_SYS_BUS_DEVICE,
- .instance_size = sizeof(HPETState),
- .class_init = hpet_device_class_init,
-};
-
-static void hpet_register_types(void)
-{
- type_register_static(&hpet_device_info);
-}
-
-type_init(hpet_register_types)