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-rw-r--r--hw/i8254_common.c311
1 files changed, 0 insertions, 311 deletions
diff --git a/hw/i8254_common.c b/hw/i8254_common.c
deleted file mode 100644
index c6c0c80..0000000
--- a/hw/i8254_common.c
+++ /dev/null
@@ -1,311 +0,0 @@
-/*
- * QEMU 8253/8254 - common bits of emulated and KVM kernel model
- *
- * Copyright (c) 2003-2004 Fabrice Bellard
- * Copyright (c) 2012 Jan Kiszka, Siemens AG
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-#include "hw/hw.h"
-#include "hw/pc.h"
-#include "hw/isa.h"
-#include "qemu/timer.h"
-#include "hw/i8254.h"
-#include "hw/i8254_internal.h"
-
-/* val must be 0 or 1 */
-void pit_set_gate(ISADevice *dev, int channel, int val)
-{
- PITCommonState *pit = PIT_COMMON(dev);
- PITChannelState *s = &pit->channels[channel];
- PITCommonClass *c = PIT_COMMON_GET_CLASS(pit);
-
- c->set_channel_gate(pit, s, val);
-}
-
-/* get pit output bit */
-int pit_get_out(PITChannelState *s, int64_t current_time)
-{
- uint64_t d;
- int out;
-
- d = muldiv64(current_time - s->count_load_time, PIT_FREQ,
- get_ticks_per_sec());
- switch (s->mode) {
- default:
- case 0:
- out = (d >= s->count);
- break;
- case 1:
- out = (d < s->count);
- break;
- case 2:
- if ((d % s->count) == 0 && d != 0) {
- out = 1;
- } else {
- out = 0;
- }
- break;
- case 3:
- out = (d % s->count) < ((s->count + 1) >> 1);
- break;
- case 4:
- case 5:
- out = (d == s->count);
- break;
- }
- return out;
-}
-
-/* return -1 if no transition will occur. */
-int64_t pit_get_next_transition_time(PITChannelState *s, int64_t current_time)
-{
- uint64_t d, next_time, base;
- int period2;
-
- d = muldiv64(current_time - s->count_load_time, PIT_FREQ,
- get_ticks_per_sec());
- switch (s->mode) {
- default:
- case 0:
- case 1:
- if (d < s->count) {
- next_time = s->count;
- } else {
- return -1;
- }
- break;
- case 2:
- base = (d / s->count) * s->count;
- if ((d - base) == 0 && d != 0) {
- next_time = base + s->count;
- } else {
- next_time = base + s->count + 1;
- }
- break;
- case 3:
- base = (d / s->count) * s->count;
- period2 = ((s->count + 1) >> 1);
- if ((d - base) < period2) {
- next_time = base + period2;
- } else {
- next_time = base + s->count;
- }
- break;
- case 4:
- case 5:
- if (d < s->count) {
- next_time = s->count;
- } else if (d == s->count) {
- next_time = s->count + 1;
- } else {
- return -1;
- }
- break;
- }
- /* convert to timer units */
- next_time = s->count_load_time + muldiv64(next_time, get_ticks_per_sec(),
- PIT_FREQ);
- /* fix potential rounding problems */
- /* XXX: better solution: use a clock at PIT_FREQ Hz */
- if (next_time <= current_time) {
- next_time = current_time + 1;
- }
- return next_time;
-}
-
-void pit_get_channel_info_common(PITCommonState *s, PITChannelState *sc,
- PITChannelInfo *info)
-{
- info->gate = sc->gate;
- info->mode = sc->mode;
- info->initial_count = sc->count;
- info->out = pit_get_out(sc, qemu_get_clock_ns(vm_clock));
-}
-
-void pit_get_channel_info(ISADevice *dev, int channel, PITChannelInfo *info)
-{
- PITCommonState *pit = PIT_COMMON(dev);
- PITChannelState *s = &pit->channels[channel];
- PITCommonClass *c = PIT_COMMON_GET_CLASS(pit);
-
- c->get_channel_info(pit, s, info);
-}
-
-void pit_reset_common(PITCommonState *pit)
-{
- PITChannelState *s;
- int i;
-
- for (i = 0; i < 3; i++) {
- s = &pit->channels[i];
- s->mode = 3;
- s->gate = (i != 2);
- s->count_load_time = qemu_get_clock_ns(vm_clock);
- s->count = 0x10000;
- if (i == 0 && !s->irq_disabled) {
- s->next_transition_time =
- pit_get_next_transition_time(s, s->count_load_time);
- }
- }
-}
-
-static int pit_init_common(ISADevice *dev)
-{
- PITCommonState *pit = PIT_COMMON(dev);
- PITCommonClass *c = PIT_COMMON_GET_CLASS(pit);
- int ret;
-
- ret = c->init(pit);
- if (ret < 0) {
- return ret;
- }
-
- isa_register_ioport(dev, &pit->ioports, pit->iobase);
-
- qdev_set_legacy_instance_id(&dev->qdev, pit->iobase, 2);
-
- return 0;
-}
-
-static const VMStateDescription vmstate_pit_channel = {
- .name = "pit channel",
- .version_id = 2,
- .minimum_version_id = 2,
- .minimum_version_id_old = 2,
- .fields = (VMStateField[]) {
- VMSTATE_INT32(count, PITChannelState),
- VMSTATE_UINT16(latched_count, PITChannelState),
- VMSTATE_UINT8(count_latched, PITChannelState),
- VMSTATE_UINT8(status_latched, PITChannelState),
- VMSTATE_UINT8(status, PITChannelState),
- VMSTATE_UINT8(read_state, PITChannelState),
- VMSTATE_UINT8(write_state, PITChannelState),
- VMSTATE_UINT8(write_latch, PITChannelState),
- VMSTATE_UINT8(rw_mode, PITChannelState),
- VMSTATE_UINT8(mode, PITChannelState),
- VMSTATE_UINT8(bcd, PITChannelState),
- VMSTATE_UINT8(gate, PITChannelState),
- VMSTATE_INT64(count_load_time, PITChannelState),
- VMSTATE_INT64(next_transition_time, PITChannelState),
- VMSTATE_END_OF_LIST()
- }
-};
-
-static int pit_load_old(QEMUFile *f, void *opaque, int version_id)
-{
- PITCommonState *pit = opaque;
- PITCommonClass *c = PIT_COMMON_GET_CLASS(pit);
- PITChannelState *s;
- int i;
-
- if (version_id != 1) {
- return -EINVAL;
- }
-
- for (i = 0; i < 3; i++) {
- s = &pit->channels[i];
- s->count = qemu_get_be32(f);
- qemu_get_be16s(f, &s->latched_count);
- qemu_get_8s(f, &s->count_latched);
- qemu_get_8s(f, &s->status_latched);
- qemu_get_8s(f, &s->status);
- qemu_get_8s(f, &s->read_state);
- qemu_get_8s(f, &s->write_state);
- qemu_get_8s(f, &s->write_latch);
- qemu_get_8s(f, &s->rw_mode);
- qemu_get_8s(f, &s->mode);
- qemu_get_8s(f, &s->bcd);
- qemu_get_8s(f, &s->gate);
- s->count_load_time = qemu_get_be64(f);
- s->irq_disabled = 0;
- if (i == 0) {
- s->next_transition_time = qemu_get_be64(f);
- }
- }
- if (c->post_load) {
- c->post_load(pit);
- }
- return 0;
-}
-
-static void pit_dispatch_pre_save(void *opaque)
-{
- PITCommonState *s = opaque;
- PITCommonClass *c = PIT_COMMON_GET_CLASS(s);
-
- if (c->pre_save) {
- c->pre_save(s);
- }
-}
-
-static int pit_dispatch_post_load(void *opaque, int version_id)
-{
- PITCommonState *s = opaque;
- PITCommonClass *c = PIT_COMMON_GET_CLASS(s);
-
- if (c->post_load) {
- c->post_load(s);
- }
- return 0;
-}
-
-static const VMStateDescription vmstate_pit_common = {
- .name = "i8254",
- .version_id = 3,
- .minimum_version_id = 2,
- .minimum_version_id_old = 1,
- .load_state_old = pit_load_old,
- .pre_save = pit_dispatch_pre_save,
- .post_load = pit_dispatch_post_load,
- .fields = (VMStateField[]) {
- VMSTATE_UINT32_V(channels[0].irq_disabled, PITCommonState, 3),
- VMSTATE_STRUCT_ARRAY(channels, PITCommonState, 3, 2,
- vmstate_pit_channel, PITChannelState),
- VMSTATE_INT64(channels[0].next_transition_time,
- PITCommonState), /* formerly irq_timer */
- VMSTATE_END_OF_LIST()
- }
-};
-
-static void pit_common_class_init(ObjectClass *klass, void *data)
-{
- ISADeviceClass *ic = ISA_DEVICE_CLASS(klass);
- DeviceClass *dc = DEVICE_CLASS(klass);
-
- ic->init = pit_init_common;
- dc->vmsd = &vmstate_pit_common;
- dc->no_user = 1;
-}
-
-static const TypeInfo pit_common_type = {
- .name = TYPE_PIT_COMMON,
- .parent = TYPE_ISA_DEVICE,
- .instance_size = sizeof(PITCommonState),
- .class_size = sizeof(PITCommonClass),
- .class_init = pit_common_class_init,
- .abstract = true,
-};
-
-static void register_devices(void)
-{
- type_register_static(&pit_common_type);
-}
-
-type_init(register_devices);
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