* Copyright (c) 2006 Openedhand Ltd.
* Copyright (c) 2006 Thorsten Zitterell
*
- * This code is licenced under the GPL.
+ * This code is licensed under the GPL.
*/
#include "hw.h"
#include "qemu-timer.h"
#include "sysemu.h"
#include "pxa.h"
+#include "sysbus.h"
#define OSMR0 0x00
#define OSMR1 0x04
[5 ... 7] = 0,
};
-struct pxa2xx_timer0_s {
+typedef struct PXA2xxTimerInfo PXA2xxTimerInfo;
+
+typedef struct {
uint32_t value;
- int level;
qemu_irq irq;
QEMUTimer *qtimer;
int num;
- void *info;
-};
+ PXA2xxTimerInfo *info;
+} PXA2xxTimer0;
-struct pxa2xx_timer4_s {
- struct pxa2xx_timer0_s tm;
+typedef struct {
+ PXA2xxTimer0 tm;
int32_t oldclock;
int32_t clock;
uint64_t lastload;
uint32_t freq;
uint32_t control;
-};
+} PXA2xxTimer4;
+
+struct PXA2xxTimerInfo {
+ SysBusDevice busdev;
+ MemoryRegion iomem;
+ uint32_t flags;
-typedef struct {
- target_phys_addr_t base;
int32_t clock;
int32_t oldclock;
uint64_t lastload;
uint32_t freq;
- struct pxa2xx_timer0_s timer[4];
- struct pxa2xx_timer4_s *tm4;
+ PXA2xxTimer0 timer[4];
uint32_t events;
uint32_t irq_enabled;
uint32_t reset3;
uint32_t snapshot;
-} pxa2xx_timer_info;
+
+ qemu_irq irq4;
+ PXA2xxTimer4 tm4[8];
+};
+
+#define PXA2XX_TIMER_HAVE_TM4 0
+
+static inline int pxa2xx_timer_has_tm4(PXA2xxTimerInfo *s)
+{
+ return s->flags & (1 << PXA2XX_TIMER_HAVE_TM4);
+}
static void pxa2xx_timer_update(void *opaque, uint64_t now_qemu)
{
- pxa2xx_timer_info *s = (pxa2xx_timer_info *) opaque;
+ PXA2xxTimerInfo *s = (PXA2xxTimerInfo *) opaque;
int i;
uint32_t now_vm;
uint64_t new_qemu;
now_vm = s->clock +
- muldiv64(now_qemu - s->lastload, s->freq, ticks_per_sec);
+ muldiv64(now_qemu - s->lastload, s->freq, get_ticks_per_sec());
for (i = 0; i < 4; i ++) {
new_qemu = now_qemu + muldiv64((uint32_t) (s->timer[i].value - now_vm),
- ticks_per_sec, s->freq);
+ get_ticks_per_sec(), s->freq);
qemu_mod_timer(s->timer[i].qtimer, new_qemu);
}
}
static void pxa2xx_timer_update4(void *opaque, uint64_t now_qemu, int n)
{
- pxa2xx_timer_info *s = (pxa2xx_timer_info *) opaque;
+ PXA2xxTimerInfo *s = (PXA2xxTimerInfo *) opaque;
uint32_t now_vm;
uint64_t new_qemu;
static const int counters[8] = { 0, 0, 0, 0, 4, 4, 6, 6 };
now_vm = s->tm4[counter].clock + muldiv64(now_qemu -
s->tm4[counter].lastload,
- s->tm4[counter].freq, ticks_per_sec);
+ s->tm4[counter].freq, get_ticks_per_sec());
new_qemu = now_qemu + muldiv64((uint32_t) (s->tm4[n].tm.value - now_vm),
- ticks_per_sec, s->tm4[counter].freq);
+ get_ticks_per_sec(), s->tm4[counter].freq);
qemu_mod_timer(s->tm4[n].tm.qtimer, new_qemu);
}
-static uint32_t pxa2xx_timer_read(void *opaque, target_phys_addr_t offset)
+static uint64_t pxa2xx_timer_read(void *opaque, target_phys_addr_t offset,
+ unsigned size)
{
- pxa2xx_timer_info *s = (pxa2xx_timer_info *) opaque;
+ PXA2xxTimerInfo *s = (PXA2xxTimerInfo *) opaque;
int tm = 0;
- offset -= s->base;
-
switch (offset) {
case OSMR3: tm ++;
case OSMR2: tm ++;
case OSMR6: tm ++;
case OSMR5: tm ++;
case OSMR4:
- if (!s->tm4)
+ if (!pxa2xx_timer_has_tm4(s))
goto badreg;
return s->tm4[tm].tm.value;
case OSCR:
- return s->clock + muldiv64(qemu_get_clock(vm_clock) -
- s->lastload, s->freq, ticks_per_sec);
+ return s->clock + muldiv64(qemu_get_clock_ns(vm_clock) -
+ s->lastload, s->freq, get_ticks_per_sec());
case OSCR11: tm ++;
case OSCR10: tm ++;
case OSCR9: tm ++;
case OSCR6: tm ++;
case OSCR5: tm ++;
case OSCR4:
- if (!s->tm4)
+ if (!pxa2xx_timer_has_tm4(s))
goto badreg;
if ((tm == 9 - 4 || tm == 11 - 4) && (s->tm4[tm].control & (1 << 9))) {
if (s->tm4[tm - 1].freq)
s->snapshot = s->tm4[tm - 1].clock + muldiv64(
- qemu_get_clock(vm_clock) -
+ qemu_get_clock_ns(vm_clock) -
s->tm4[tm - 1].lastload,
- s->tm4[tm - 1].freq, ticks_per_sec);
+ s->tm4[tm - 1].freq, get_ticks_per_sec());
else
s->snapshot = s->tm4[tm - 1].clock;
}
if (!s->tm4[tm].freq)
return s->tm4[tm].clock;
- return s->tm4[tm].clock + muldiv64(qemu_get_clock(vm_clock) -
- s->tm4[tm].lastload, s->tm4[tm].freq, ticks_per_sec);
+ return s->tm4[tm].clock + muldiv64(qemu_get_clock_ns(vm_clock) -
+ s->tm4[tm].lastload, s->tm4[tm].freq, get_ticks_per_sec());
case OIER:
return s->irq_enabled;
case OSSR: /* Status register */
case OMCR6: tm ++;
case OMCR5: tm ++;
case OMCR4:
- if (!s->tm4)
+ if (!pxa2xx_timer_has_tm4(s))
goto badreg;
return s->tm4[tm].control;
case OSNR:
return s->snapshot;
default:
badreg:
- cpu_abort(cpu_single_env, "pxa2xx_timer_read: Bad offset "
- REG_FMT "\n", offset);
+ hw_error("pxa2xx_timer_read: Bad offset " REG_FMT "\n", offset);
}
return 0;
}
static void pxa2xx_timer_write(void *opaque, target_phys_addr_t offset,
- uint32_t value)
+ uint64_t value, unsigned size)
{
int i, tm = 0;
- pxa2xx_timer_info *s = (pxa2xx_timer_info *) opaque;
-
- offset -= s->base;
+ PXA2xxTimerInfo *s = (PXA2xxTimerInfo *) opaque;
switch (offset) {
case OSMR3: tm ++;
case OSMR1: tm ++;
case OSMR0:
s->timer[tm].value = value;
- pxa2xx_timer_update(s, qemu_get_clock(vm_clock));
+ pxa2xx_timer_update(s, qemu_get_clock_ns(vm_clock));
break;
case OSMR11: tm ++;
case OSMR10: tm ++;
case OSMR6: tm ++;
case OSMR5: tm ++;
case OSMR4:
- if (!s->tm4)
+ if (!pxa2xx_timer_has_tm4(s))
goto badreg;
s->tm4[tm].tm.value = value;
- pxa2xx_timer_update4(s, qemu_get_clock(vm_clock), tm);
+ pxa2xx_timer_update4(s, qemu_get_clock_ns(vm_clock), tm);
break;
case OSCR:
s->oldclock = s->clock;
- s->lastload = qemu_get_clock(vm_clock);
+ s->lastload = qemu_get_clock_ns(vm_clock);
s->clock = value;
pxa2xx_timer_update(s, s->lastload);
break;
case OSCR6: tm ++;
case OSCR5: tm ++;
case OSCR4:
- if (!s->tm4)
+ if (!pxa2xx_timer_has_tm4(s))
goto badreg;
s->tm4[tm].oldclock = s->tm4[tm].clock;
- s->tm4[tm].lastload = qemu_get_clock(vm_clock);
+ s->tm4[tm].lastload = qemu_get_clock_ns(vm_clock);
s->tm4[tm].clock = value;
pxa2xx_timer_update4(s, s->tm4[tm].lastload, tm);
break;
s->irq_enabled = value & 0xfff;
break;
case OSSR: /* Status register */
+ value &= s->events;
s->events &= ~value;
- for (i = 0; i < 4; i ++, value >>= 1) {
- if (s->timer[i].level && (value & 1)) {
- s->timer[i].level = 0;
+ for (i = 0; i < 4; i ++, value >>= 1)
+ if (value & 1)
qemu_irq_lower(s->timer[i].irq);
- }
- }
- if (s->tm4) {
- for (i = 0; i < 8; i ++, value >>= 1)
- if (s->tm4[i].tm.level && (value & 1))
- s->tm4[i].tm.level = 0;
- if (!(s->events & 0xff0))
- qemu_irq_lower(s->tm4->tm.irq);
- }
+ if (pxa2xx_timer_has_tm4(s) && !(s->events & 0xff0) && value)
+ qemu_irq_lower(s->irq4);
break;
case OWER: /* XXX: Reset on OSMR3 match? */
s->reset3 = value;
case OMCR6: tm ++;
case OMCR5: tm ++;
case OMCR4:
- if (!s->tm4)
+ if (!pxa2xx_timer_has_tm4(s))
goto badreg;
s->tm4[tm].control = value & 0x0ff;
/* XXX Stop if running (shouldn't happen) */
s->tm4[tm].freq = pxa2xx_timer4_freq[value & 7];
else {
s->tm4[tm].freq = 0;
- pxa2xx_timer_update4(s, qemu_get_clock(vm_clock), tm);
+ pxa2xx_timer_update4(s, qemu_get_clock_ns(vm_clock), tm);
}
break;
case OMCR11: tm ++;
case OMCR10: tm ++;
case OMCR9: tm ++;
case OMCR8: tm += 4;
- if (!s->tm4)
+ if (!pxa2xx_timer_has_tm4(s))
goto badreg;
s->tm4[tm].control = value & 0x3ff;
/* XXX Stop if running (shouldn't happen) */
pxa2xx_timer4_freq[(value & (1 << 8)) ? 0 : (value & 7)];
else {
s->tm4[tm].freq = 0;
- pxa2xx_timer_update4(s, qemu_get_clock(vm_clock), tm);
+ pxa2xx_timer_update4(s, qemu_get_clock_ns(vm_clock), tm);
}
break;
default:
badreg:
- cpu_abort(cpu_single_env, "pxa2xx_timer_write: Bad offset "
- REG_FMT "\n", offset);
+ hw_error("pxa2xx_timer_write: Bad offset " REG_FMT "\n", offset);
}
}
-static CPUReadMemoryFunc *pxa2xx_timer_readfn[] = {
- pxa2xx_timer_read,
- pxa2xx_timer_read,
- pxa2xx_timer_read,
-};
-
-static CPUWriteMemoryFunc *pxa2xx_timer_writefn[] = {
- pxa2xx_timer_write,
- pxa2xx_timer_write,
- pxa2xx_timer_write,
+static const MemoryRegionOps pxa2xx_timer_ops = {
+ .read = pxa2xx_timer_read,
+ .write = pxa2xx_timer_write,
+ .endianness = DEVICE_NATIVE_ENDIAN,
};
static void pxa2xx_timer_tick(void *opaque)
{
- struct pxa2xx_timer0_s *t = (struct pxa2xx_timer0_s *) opaque;
- pxa2xx_timer_info *i = (pxa2xx_timer_info *) t->info;
+ PXA2xxTimer0 *t = (PXA2xxTimer0 *) opaque;
+ PXA2xxTimerInfo *i = t->info;
if (i->irq_enabled & (1 << t->num)) {
- t->level = 1;
i->events |= 1 << t->num;
qemu_irq_raise(t->irq);
}
static void pxa2xx_timer_tick4(void *opaque)
{
- struct pxa2xx_timer4_s *t = (struct pxa2xx_timer4_s *) opaque;
- pxa2xx_timer_info *i = (pxa2xx_timer_info *) t->tm.info;
+ PXA2xxTimer4 *t = (PXA2xxTimer4 *) opaque;
+ PXA2xxTimerInfo *i = (PXA2xxTimerInfo *) t->tm.info;
pxa2xx_timer_tick(&t->tm);
if (t->control & (1 << 3))
t->clock = 0;
if (t->control & (1 << 6))
- pxa2xx_timer_update4(i, qemu_get_clock(vm_clock), t->tm.num - 4);
+ pxa2xx_timer_update4(i, qemu_get_clock_ns(vm_clock), t->tm.num - 4);
+ if (i->events & 0xff0)
+ qemu_irq_raise(i->irq4);
}
-static void pxa2xx_timer_save(QEMUFile *f, void *opaque)
+static int pxa25x_timer_post_load(void *opaque, int version_id)
{
- pxa2xx_timer_info *s = (pxa2xx_timer_info *) opaque;
- int i;
-
- qemu_put_be32s(f, (uint32_t *) &s->clock);
- qemu_put_be32s(f, (uint32_t *) &s->oldclock);
- qemu_put_be64s(f, &s->lastload);
-
- for (i = 0; i < 4; i ++) {
- qemu_put_be32s(f, &s->timer[i].value);
- qemu_put_be32(f, s->timer[i].level);
- }
- if (s->tm4)
- for (i = 0; i < 8; i ++) {
- qemu_put_be32s(f, &s->tm4[i].tm.value);
- qemu_put_be32(f, s->tm4[i].tm.level);
- qemu_put_sbe32s(f, &s->tm4[i].oldclock);
- qemu_put_sbe32s(f, &s->tm4[i].clock);
- qemu_put_be64s(f, &s->tm4[i].lastload);
- qemu_put_be32s(f, &s->tm4[i].freq);
- qemu_put_be32s(f, &s->tm4[i].control);
- }
-
- qemu_put_be32s(f, &s->events);
- qemu_put_be32s(f, &s->irq_enabled);
- qemu_put_be32s(f, &s->reset3);
- qemu_put_be32s(f, &s->snapshot);
-}
-
-static int pxa2xx_timer_load(QEMUFile *f, void *opaque, int version_id)
-{
- pxa2xx_timer_info *s = (pxa2xx_timer_info *) opaque;
+ PXA2xxTimerInfo *s = (PXA2xxTimerInfo *) opaque;
int64_t now;
int i;
- qemu_get_be32s(f, (uint32_t *) &s->clock);
- qemu_get_be32s(f, (uint32_t *) &s->oldclock);
- qemu_get_be64s(f, &s->lastload);
-
- now = qemu_get_clock(vm_clock);
- for (i = 0; i < 4; i ++) {
- qemu_get_be32s(f, &s->timer[i].value);
- s->timer[i].level = qemu_get_be32(f);
- }
+ now = qemu_get_clock_ns(vm_clock);
pxa2xx_timer_update(s, now);
- if (s->tm4)
- for (i = 0; i < 8; i ++) {
- qemu_get_be32s(f, &s->tm4[i].tm.value);
- s->tm4[i].tm.level = qemu_get_be32(f);
- qemu_get_sbe32s(f, &s->tm4[i].oldclock);
- qemu_get_sbe32s(f, &s->tm4[i].clock);
- qemu_get_be64s(f, &s->tm4[i].lastload);
- qemu_get_be32s(f, &s->tm4[i].freq);
- qemu_get_be32s(f, &s->tm4[i].control);
+ if (pxa2xx_timer_has_tm4(s))
+ for (i = 0; i < 8; i ++)
pxa2xx_timer_update4(s, now, i);
- }
-
- qemu_get_be32s(f, &s->events);
- qemu_get_be32s(f, &s->irq_enabled);
- qemu_get_be32s(f, &s->reset3);
- qemu_get_be32s(f, &s->snapshot);
return 0;
}
-static pxa2xx_timer_info *pxa2xx_timer_init(target_phys_addr_t base,
- qemu_irq *irqs)
+static int pxa2xx_timer_init(SysBusDevice *dev)
{
int i;
- int iomemtype;
- pxa2xx_timer_info *s;
+ PXA2xxTimerInfo *s;
- s = (pxa2xx_timer_info *) qemu_mallocz(sizeof(pxa2xx_timer_info));
- s->base = base;
+ s = FROM_SYSBUS(PXA2xxTimerInfo, dev);
s->irq_enabled = 0;
s->oldclock = 0;
s->clock = 0;
- s->lastload = qemu_get_clock(vm_clock);
+ s->lastload = qemu_get_clock_ns(vm_clock);
s->reset3 = 0;
for (i = 0; i < 4; i ++) {
s->timer[i].value = 0;
- s->timer[i].irq = irqs[i];
+ sysbus_init_irq(dev, &s->timer[i].irq);
s->timer[i].info = s;
s->timer[i].num = i;
- s->timer[i].level = 0;
- s->timer[i].qtimer = qemu_new_timer(vm_clock,
+ s->timer[i].qtimer = qemu_new_timer_ns(vm_clock,
pxa2xx_timer_tick, &s->timer[i]);
}
+ if (s->flags & (1 << PXA2XX_TIMER_HAVE_TM4)) {
+ sysbus_init_irq(dev, &s->irq4);
- iomemtype = cpu_register_io_memory(0, pxa2xx_timer_readfn,
- pxa2xx_timer_writefn, s);
- cpu_register_physical_memory(base, 0x00001000, iomemtype);
+ for (i = 0; i < 8; i ++) {
+ s->tm4[i].tm.value = 0;
+ s->tm4[i].tm.info = s;
+ s->tm4[i].tm.num = i + 4;
+ s->tm4[i].freq = 0;
+ s->tm4[i].control = 0x0;
+ s->tm4[i].tm.qtimer = qemu_new_timer_ns(vm_clock,
+ pxa2xx_timer_tick4, &s->tm4[i]);
+ }
+ }
- register_savevm("pxa2xx_timer", 0, 0,
- pxa2xx_timer_save, pxa2xx_timer_load, s);
+ memory_region_init_io(&s->iomem, &pxa2xx_timer_ops, s,
+ "pxa2xx-timer", 0x00001000);
+ sysbus_init_mmio(dev, &s->iomem);
- return s;
+ return 0;
}
-void pxa25x_timer_init(target_phys_addr_t base, qemu_irq *irqs)
+static const VMStateDescription vmstate_pxa2xx_timer0_regs = {
+ .name = "pxa2xx_timer0",
+ .version_id = 2,
+ .minimum_version_id = 2,
+ .minimum_version_id_old = 2,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT32(value, PXA2xxTimer0),
+ VMSTATE_END_OF_LIST(),
+ },
+};
+
+static const VMStateDescription vmstate_pxa2xx_timer4_regs = {
+ .name = "pxa2xx_timer4",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .minimum_version_id_old = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_STRUCT(tm, PXA2xxTimer4, 1,
+ vmstate_pxa2xx_timer0_regs, PXA2xxTimer0),
+ VMSTATE_INT32(oldclock, PXA2xxTimer4),
+ VMSTATE_INT32(clock, PXA2xxTimer4),
+ VMSTATE_UINT64(lastload, PXA2xxTimer4),
+ VMSTATE_UINT32(freq, PXA2xxTimer4),
+ VMSTATE_UINT32(control, PXA2xxTimer4),
+ VMSTATE_END_OF_LIST(),
+ },
+};
+
+static bool pxa2xx_timer_has_tm4_test(void *opaque, int version_id)
{
- pxa2xx_timer_info *s = pxa2xx_timer_init(base, irqs);
- s->freq = PXA25X_FREQ;
- s->tm4 = 0;
+ return pxa2xx_timer_has_tm4(opaque);
}
-void pxa27x_timer_init(target_phys_addr_t base,
- qemu_irq *irqs, qemu_irq irq4)
-{
- pxa2xx_timer_info *s = pxa2xx_timer_init(base, irqs);
- int i;
- s->freq = PXA27X_FREQ;
- s->tm4 = (struct pxa2xx_timer4_s *) qemu_mallocz(8 *
- sizeof(struct pxa2xx_timer4_s));
- for (i = 0; i < 8; i ++) {
- s->tm4[i].tm.value = 0;
- s->tm4[i].tm.irq = irq4;
- s->tm4[i].tm.info = s;
- s->tm4[i].tm.num = i + 4;
- s->tm4[i].tm.level = 0;
- s->tm4[i].freq = 0;
- s->tm4[i].control = 0x0;
- s->tm4[i].tm.qtimer = qemu_new_timer(vm_clock,
- pxa2xx_timer_tick4, &s->tm4[i]);
+static const VMStateDescription vmstate_pxa2xx_timer_regs = {
+ .name = "pxa2xx_timer",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .minimum_version_id_old = 1,
+ .post_load = pxa25x_timer_post_load,
+ .fields = (VMStateField[]) {
+ VMSTATE_INT32(clock, PXA2xxTimerInfo),
+ VMSTATE_INT32(oldclock, PXA2xxTimerInfo),
+ VMSTATE_UINT64(lastload, PXA2xxTimerInfo),
+ VMSTATE_STRUCT_ARRAY(timer, PXA2xxTimerInfo, 4, 1,
+ vmstate_pxa2xx_timer0_regs, PXA2xxTimer0),
+ VMSTATE_UINT32(events, PXA2xxTimerInfo),
+ VMSTATE_UINT32(irq_enabled, PXA2xxTimerInfo),
+ VMSTATE_UINT32(reset3, PXA2xxTimerInfo),
+ VMSTATE_UINT32(snapshot, PXA2xxTimerInfo),
+ VMSTATE_STRUCT_ARRAY_TEST(tm4, PXA2xxTimerInfo, 8,
+ pxa2xx_timer_has_tm4_test, 0,
+ vmstate_pxa2xx_timer4_regs, PXA2xxTimer4),
+ VMSTATE_END_OF_LIST(),
}
+};
+
+static Property pxa25x_timer_dev_properties[] = {
+ DEFINE_PROP_UINT32("freq", PXA2xxTimerInfo, freq, PXA25X_FREQ),
+ DEFINE_PROP_BIT("tm4", PXA2xxTimerInfo, flags,
+ PXA2XX_TIMER_HAVE_TM4, false),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void pxa25x_timer_dev_class_init(ObjectClass *klass, void *data)
+{
+ SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
+
+ k->init = pxa2xx_timer_init;
+}
+
+static DeviceInfo pxa25x_timer_dev_info = {
+ .name = "pxa25x-timer",
+ .desc = "PXA25x timer",
+ .size = sizeof(PXA2xxTimerInfo),
+ .vmsd = &vmstate_pxa2xx_timer_regs,
+ .props = pxa25x_timer_dev_properties,
+ .class_init = pxa25x_timer_dev_class_init,
+};
+
+static Property pxa27x_timer_dev_properties[] = {
+ DEFINE_PROP_UINT32("freq", PXA2xxTimerInfo, freq, PXA27X_FREQ),
+ DEFINE_PROP_BIT("tm4", PXA2xxTimerInfo, flags,
+ PXA2XX_TIMER_HAVE_TM4, true),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void pxa27x_timer_dev_class_init(ObjectClass *klass, void *data)
+{
+ SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
+
+ k->init = pxa2xx_timer_init;
}
+
+static DeviceInfo pxa27x_timer_dev_info = {
+ .name = "pxa27x-timer",
+ .desc = "PXA27x timer",
+ .size = sizeof(PXA2xxTimerInfo),
+ .vmsd = &vmstate_pxa2xx_timer_regs,
+ .props = pxa27x_timer_dev_properties,
+ .class_init = pxa27x_timer_dev_class_init,
+};
+
+static void pxa2xx_timer_register(void)
+{
+ sysbus_register_withprop(&pxa25x_timer_dev_info);
+ sysbus_register_withprop(&pxa27x_timer_dev_info);
+};
+device_init(pxa2xx_timer_register);
projects / qemu.git / blobdiff