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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/arm_timer.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/arm_timer.c')
-rw-r--r--hw/arm_timer.c399
1 files changed, 0 insertions, 399 deletions
diff --git a/hw/arm_timer.c b/hw/arm_timer.c
deleted file mode 100644
index 644987046a..0000000000
--- a/hw/arm_timer.c
+++ /dev/null
@@ -1,399 +0,0 @@
-/*
- * ARM PrimeCell Timer modules.
- *
- * Copyright (c) 2005-2006 CodeSourcery.
- * Written by Paul Brook
- *
- * This code is licensed under the GPL.
- */
-
-#include "hw/sysbus.h"
-#include "qemu/timer.h"
-#include "qemu-common.h"
-#include "hw/qdev.h"
-#include "hw/ptimer.h"
-
-/* Common timer implementation. */
-
-#define TIMER_CTRL_ONESHOT (1 << 0)
-#define TIMER_CTRL_32BIT (1 << 1)
-#define TIMER_CTRL_DIV1 (0 << 2)
-#define TIMER_CTRL_DIV16 (1 << 2)
-#define TIMER_CTRL_DIV256 (2 << 2)
-#define TIMER_CTRL_IE (1 << 5)
-#define TIMER_CTRL_PERIODIC (1 << 6)
-#define TIMER_CTRL_ENABLE (1 << 7)
-
-typedef struct {
- ptimer_state *timer;
- uint32_t control;
- uint32_t limit;
- int freq;
- int int_level;
- qemu_irq irq;
-} arm_timer_state;
-
-/* Check all active timers, and schedule the next timer interrupt. */
-
-static void arm_timer_update(arm_timer_state *s)
-{
- /* Update interrupts. */
- if (s->int_level && (s->control & TIMER_CTRL_IE)) {
- qemu_irq_raise(s->irq);
- } else {
- qemu_irq_lower(s->irq);
- }
-}
-
-static uint32_t arm_timer_read(void *opaque, hwaddr offset)
-{
- arm_timer_state *s = (arm_timer_state *)opaque;
-
- switch (offset >> 2) {
- case 0: /* TimerLoad */
- case 6: /* TimerBGLoad */
- return s->limit;
- case 1: /* TimerValue */
- return ptimer_get_count(s->timer);
- case 2: /* TimerControl */
- return s->control;
- case 4: /* TimerRIS */
- return s->int_level;
- case 5: /* TimerMIS */
- if ((s->control & TIMER_CTRL_IE) == 0)
- return 0;
- return s->int_level;
- default:
- qemu_log_mask(LOG_GUEST_ERROR,
- "%s: Bad offset %x\n", __func__, (int)offset);
- return 0;
- }
-}
-
-/* Reset the timer limit after settings have changed. */
-static void arm_timer_recalibrate(arm_timer_state *s, int reload)
-{
- uint32_t limit;
-
- if ((s->control & (TIMER_CTRL_PERIODIC | TIMER_CTRL_ONESHOT)) == 0) {
- /* Free running. */
- if (s->control & TIMER_CTRL_32BIT)
- limit = 0xffffffff;
- else
- limit = 0xffff;
- } else {
- /* Periodic. */
- limit = s->limit;
- }
- ptimer_set_limit(s->timer, limit, reload);
-}
-
-static void arm_timer_write(void *opaque, hwaddr offset,
- uint32_t value)
-{
- arm_timer_state *s = (arm_timer_state *)opaque;
- int freq;
-
- switch (offset >> 2) {
- case 0: /* TimerLoad */
- s->limit = value;
- arm_timer_recalibrate(s, 1);
- break;
- case 1: /* TimerValue */
- /* ??? Linux seems to want to write to this readonly register.
- Ignore it. */
- break;
- case 2: /* TimerControl */
- if (s->control & TIMER_CTRL_ENABLE) {
- /* Pause the timer if it is running. This may cause some
- inaccuracy dure to rounding, but avoids a whole lot of other
- messyness. */
- ptimer_stop(s->timer);
- }
- s->control = value;
- freq = s->freq;
- /* ??? Need to recalculate expiry time after changing divisor. */
- switch ((value >> 2) & 3) {
- case 1: freq >>= 4; break;
- case 2: freq >>= 8; break;
- }
- arm_timer_recalibrate(s, s->control & TIMER_CTRL_ENABLE);
- ptimer_set_freq(s->timer, freq);
- if (s->control & TIMER_CTRL_ENABLE) {
- /* Restart the timer if still enabled. */
- ptimer_run(s->timer, (s->control & TIMER_CTRL_ONESHOT) != 0);
- }
- break;
- case 3: /* TimerIntClr */
- s->int_level = 0;
- break;
- case 6: /* TimerBGLoad */
- s->limit = value;
- arm_timer_recalibrate(s, 0);
- break;
- default:
- qemu_log_mask(LOG_GUEST_ERROR,
- "%s: Bad offset %x\n", __func__, (int)offset);
- }
- arm_timer_update(s);
-}
-
-static void arm_timer_tick(void *opaque)
-{
- arm_timer_state *s = (arm_timer_state *)opaque;
- s->int_level = 1;
- arm_timer_update(s);
-}
-
-static const VMStateDescription vmstate_arm_timer = {
- .name = "arm_timer",
- .version_id = 1,
- .minimum_version_id = 1,
- .minimum_version_id_old = 1,
- .fields = (VMStateField[]) {
- VMSTATE_UINT32(control, arm_timer_state),
- VMSTATE_UINT32(limit, arm_timer_state),
- VMSTATE_INT32(int_level, arm_timer_state),
- VMSTATE_PTIMER(timer, arm_timer_state),
- VMSTATE_END_OF_LIST()
- }
-};
-
-static arm_timer_state *arm_timer_init(uint32_t freq)
-{
- arm_timer_state *s;
- QEMUBH *bh;
-
- s = (arm_timer_state *)g_malloc0(sizeof(arm_timer_state));
- s->freq = freq;
- s->control = TIMER_CTRL_IE;
-
- bh = qemu_bh_new(arm_timer_tick, s);
- s->timer = ptimer_init(bh);
- vmstate_register(NULL, -1, &vmstate_arm_timer, s);
- return s;
-}
-
-/* ARM PrimeCell SP804 dual timer module.
- * Docs at
- * http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0271d/index.html
-*/
-
-typedef struct {
- SysBusDevice busdev;
- MemoryRegion iomem;
- arm_timer_state *timer[2];
- uint32_t freq0, freq1;
- int level[2];
- qemu_irq irq;
-} sp804_state;
-
-static const uint8_t sp804_ids[] = {
- /* Timer ID */
- 0x04, 0x18, 0x14, 0,
- /* PrimeCell ID */
- 0xd, 0xf0, 0x05, 0xb1
-};
-
-/* Merge the IRQs from the two component devices. */
-static void sp804_set_irq(void *opaque, int irq, int level)
-{
- sp804_state *s = (sp804_state *)opaque;
-
- s->level[irq] = level;
- qemu_set_irq(s->irq, s->level[0] || s->level[1]);
-}
-
-static uint64_t sp804_read(void *opaque, hwaddr offset,
- unsigned size)
-{
- sp804_state *s = (sp804_state *)opaque;
-
- if (offset < 0x20) {
- return arm_timer_read(s->timer[0], offset);
- }
- if (offset < 0x40) {
- return arm_timer_read(s->timer[1], offset - 0x20);
- }
-
- /* TimerPeriphID */
- if (offset >= 0xfe0 && offset <= 0xffc) {
- return sp804_ids[(offset - 0xfe0) >> 2];
- }
-
- switch (offset) {
- /* Integration Test control registers, which we won't support */
- case 0xf00: /* TimerITCR */
- case 0xf04: /* TimerITOP (strictly write only but..) */
- qemu_log_mask(LOG_UNIMP,
- "%s: integration test registers unimplemented\n",
- __func__);
- return 0;
- }
-
- qemu_log_mask(LOG_GUEST_ERROR,
- "%s: Bad offset %x\n", __func__, (int)offset);
- return 0;
-}
-
-static void sp804_write(void *opaque, hwaddr offset,
- uint64_t value, unsigned size)
-{
- sp804_state *s = (sp804_state *)opaque;
-
- if (offset < 0x20) {
- arm_timer_write(s->timer[0], offset, value);
- return;
- }
-
- if (offset < 0x40) {
- arm_timer_write(s->timer[1], offset - 0x20, value);
- return;
- }
-
- /* Technically we could be writing to the Test Registers, but not likely */
- qemu_log_mask(LOG_GUEST_ERROR, "%s: Bad offset %x\n",
- __func__, (int)offset);
-}
-
-static const MemoryRegionOps sp804_ops = {
- .read = sp804_read,
- .write = sp804_write,
- .endianness = DEVICE_NATIVE_ENDIAN,
-};
-
-static const VMStateDescription vmstate_sp804 = {
- .name = "sp804",
- .version_id = 1,
- .minimum_version_id = 1,
- .minimum_version_id_old = 1,
- .fields = (VMStateField[]) {
- VMSTATE_INT32_ARRAY(level, sp804_state, 2),
- VMSTATE_END_OF_LIST()
- }
-};
-
-static int sp804_init(SysBusDevice *dev)
-{
- sp804_state *s = FROM_SYSBUS(sp804_state, dev);
- qemu_irq *qi;
-
- qi = qemu_allocate_irqs(sp804_set_irq, s, 2);
- sysbus_init_irq(dev, &s->irq);
- s->timer[0] = arm_timer_init(s->freq0);
- s->timer[1] = arm_timer_init(s->freq1);
- s->timer[0]->irq = qi[0];
- s->timer[1]->irq = qi[1];
- memory_region_init_io(&s->iomem, &sp804_ops, s, "sp804", 0x1000);
- sysbus_init_mmio(dev, &s->iomem);
- vmstate_register(&dev->qdev, -1, &vmstate_sp804, s);
- return 0;
-}
-
-/* Integrator/CP timer module. */
-
-typedef struct {
- SysBusDevice busdev;
- MemoryRegion iomem;
- arm_timer_state *timer[3];
-} icp_pit_state;
-
-static uint64_t icp_pit_read(void *opaque, hwaddr offset,
- unsigned size)
-{
- icp_pit_state *s = (icp_pit_state *)opaque;
- int n;
-
- /* ??? Don't know the PrimeCell ID for this device. */
- n = offset >> 8;
- if (n > 2) {
- qemu_log_mask(LOG_GUEST_ERROR, "%s: Bad timer %d\n", __func__, n);
- }
-
- return arm_timer_read(s->timer[n], offset & 0xff);
-}
-
-static void icp_pit_write(void *opaque, hwaddr offset,
- uint64_t value, unsigned size)
-{
- icp_pit_state *s = (icp_pit_state *)opaque;
- int n;
-
- n = offset >> 8;
- if (n > 2) {
- qemu_log_mask(LOG_GUEST_ERROR, "%s: Bad timer %d\n", __func__, n);
- }
-
- arm_timer_write(s->timer[n], offset & 0xff, value);
-}
-
-static const MemoryRegionOps icp_pit_ops = {
- .read = icp_pit_read,
- .write = icp_pit_write,
- .endianness = DEVICE_NATIVE_ENDIAN,
-};
-
-static int icp_pit_init(SysBusDevice *dev)
-{
- icp_pit_state *s = FROM_SYSBUS(icp_pit_state, dev);
-
- /* Timer 0 runs at the system clock speed (40MHz). */
- s->timer[0] = arm_timer_init(40000000);
- /* The other two timers run at 1MHz. */
- s->timer[1] = arm_timer_init(1000000);
- s->timer[2] = arm_timer_init(1000000);
-
- sysbus_init_irq(dev, &s->timer[0]->irq);
- sysbus_init_irq(dev, &s->timer[1]->irq);
- sysbus_init_irq(dev, &s->timer[2]->irq);
-
- memory_region_init_io(&s->iomem, &icp_pit_ops, s, "icp_pit", 0x1000);
- sysbus_init_mmio(dev, &s->iomem);
- /* This device has no state to save/restore. The component timers will
- save themselves. */
- return 0;
-}
-
-static void icp_pit_class_init(ObjectClass *klass, void *data)
-{
- SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(klass);
-
- sdc->init = icp_pit_init;
-}
-
-static const TypeInfo icp_pit_info = {
- .name = "integrator_pit",
- .parent = TYPE_SYS_BUS_DEVICE,
- .instance_size = sizeof(icp_pit_state),
- .class_init = icp_pit_class_init,
-};
-
-static Property sp804_properties[] = {
- DEFINE_PROP_UINT32("freq0", sp804_state, freq0, 1000000),
- DEFINE_PROP_UINT32("freq1", sp804_state, freq1, 1000000),
- DEFINE_PROP_END_OF_LIST(),
-};
-
-static void sp804_class_init(ObjectClass *klass, void *data)
-{
- SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(klass);
- DeviceClass *k = DEVICE_CLASS(klass);
-
- sdc->init = sp804_init;
- k->props = sp804_properties;
-}
-
-static const TypeInfo sp804_info = {
- .name = "sp804",
- .parent = TYPE_SYS_BUS_DEVICE,
- .instance_size = sizeof(sp804_state),
- .class_init = sp804_class_init,
-};
-
-static void arm_timer_register_types(void)
-{
- type_register_static(&icp_pit_info);
- type_register_static(&sp804_info);
-}
-
-type_init(arm_timer_register_types)