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-rw-r--r--hw/pxa2xx_timer.c583
1 files changed, 0 insertions, 583 deletions
diff --git a/hw/pxa2xx_timer.c b/hw/pxa2xx_timer.c
deleted file mode 100644
index c173fe4..0000000
--- a/hw/pxa2xx_timer.c
+++ /dev/null
@@ -1,583 +0,0 @@
-/*
- * Intel XScale PXA255/270 OS Timers.
- *
- * Copyright (c) 2006 Openedhand Ltd.
- * Copyright (c) 2006 Thorsten Zitterell
- *
- * This code is licensed under the GPL.
- */
-
-#include "hw/hw.h"
-#include "qemu/timer.h"
-#include "sysemu/sysemu.h"
-#include "hw/pxa.h"
-#include "hw/sysbus.h"
-
-#define OSMR0 0x00
-#define OSMR1 0x04
-#define OSMR2 0x08
-#define OSMR3 0x0c
-#define OSMR4 0x80
-#define OSMR5 0x84
-#define OSMR6 0x88
-#define OSMR7 0x8c
-#define OSMR8 0x90
-#define OSMR9 0x94
-#define OSMR10 0x98
-#define OSMR11 0x9c
-#define OSCR 0x10 /* OS Timer Count */
-#define OSCR4 0x40
-#define OSCR5 0x44
-#define OSCR6 0x48
-#define OSCR7 0x4c
-#define OSCR8 0x50
-#define OSCR9 0x54
-#define OSCR10 0x58
-#define OSCR11 0x5c
-#define OSSR 0x14 /* Timer status register */
-#define OWER 0x18
-#define OIER 0x1c /* Interrupt enable register 3-0 to E3-E0 */
-#define OMCR4 0xc0 /* OS Match Control registers */
-#define OMCR5 0xc4
-#define OMCR6 0xc8
-#define OMCR7 0xcc
-#define OMCR8 0xd0
-#define OMCR9 0xd4
-#define OMCR10 0xd8
-#define OMCR11 0xdc
-#define OSNR 0x20
-
-#define PXA25X_FREQ 3686400 /* 3.6864 MHz */
-#define PXA27X_FREQ 3250000 /* 3.25 MHz */
-
-static int pxa2xx_timer4_freq[8] = {
- [0] = 0,
- [1] = 32768,
- [2] = 1000,
- [3] = 1,
- [4] = 1000000,
- /* [5] is the "Externally supplied clock". Assign if necessary. */
- [5 ... 7] = 0,
-};
-
-typedef struct PXA2xxTimerInfo PXA2xxTimerInfo;
-
-typedef struct {
- uint32_t value;
- qemu_irq irq;
- QEMUTimer *qtimer;
- int num;
- PXA2xxTimerInfo *info;
-} PXA2xxTimer0;
-
-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;
-
- int32_t clock;
- int32_t oldclock;
- uint64_t lastload;
- uint32_t freq;
- PXA2xxTimer0 timer[4];
- uint32_t events;
- uint32_t irq_enabled;
- uint32_t reset3;
- uint32_t snapshot;
-
- 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)
-{
- 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, get_ticks_per_sec());
-
- for (i = 0; i < 4; i ++) {
- new_qemu = now_qemu + muldiv64((uint32_t) (s->timer[i].value - now_vm),
- 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)
-{
- 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 };
- int counter;
-
- if (s->tm4[n].control & (1 << 7))
- counter = n;
- else
- counter = counters[n];
-
- if (!s->tm4[counter].freq) {
- qemu_del_timer(s->tm4[n].tm.qtimer);
- return;
- }
-
- now_vm = s->tm4[counter].clock + muldiv64(now_qemu -
- s->tm4[counter].lastload,
- s->tm4[counter].freq, get_ticks_per_sec());
-
- new_qemu = now_qemu + muldiv64((uint32_t) (s->tm4[n].tm.value - now_vm),
- get_ticks_per_sec(), s->tm4[counter].freq);
- qemu_mod_timer(s->tm4[n].tm.qtimer, new_qemu);
-}
-
-static uint64_t pxa2xx_timer_read(void *opaque, hwaddr offset,
- unsigned size)
-{
- PXA2xxTimerInfo *s = (PXA2xxTimerInfo *) opaque;
- int tm = 0;
-
- switch (offset) {
- case OSMR3: tm ++;
- /* fall through */
- case OSMR2: tm ++;
- /* fall through */
- case OSMR1: tm ++;
- /* fall through */
- case OSMR0:
- return s->timer[tm].value;
- case OSMR11: tm ++;
- /* fall through */
- case OSMR10: tm ++;
- /* fall through */
- case OSMR9: tm ++;
- /* fall through */
- case OSMR8: tm ++;
- /* fall through */
- case OSMR7: tm ++;
- /* fall through */
- case OSMR6: tm ++;
- /* fall through */
- case OSMR5: tm ++;
- /* fall through */
- case OSMR4:
- if (!pxa2xx_timer_has_tm4(s))
- goto badreg;
- return s->tm4[tm].tm.value;
- case OSCR:
- return s->clock + muldiv64(qemu_get_clock_ns(vm_clock) -
- s->lastload, s->freq, get_ticks_per_sec());
- case OSCR11: tm ++;
- /* fall through */
- case OSCR10: tm ++;
- /* fall through */
- case OSCR9: tm ++;
- /* fall through */
- case OSCR8: tm ++;
- /* fall through */
- case OSCR7: tm ++;
- /* fall through */
- case OSCR6: tm ++;
- /* fall through */
- case OSCR5: tm ++;
- /* fall through */
- case OSCR4:
- 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_ns(vm_clock) -
- s->tm4[tm - 1].lastload,
- 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_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 */
- return s->events;
- case OWER:
- return s->reset3;
- case OMCR11: tm ++;
- /* fall through */
- case OMCR10: tm ++;
- /* fall through */
- case OMCR9: tm ++;
- /* fall through */
- case OMCR8: tm ++;
- /* fall through */
- case OMCR7: tm ++;
- /* fall through */
- case OMCR6: tm ++;
- /* fall through */
- case OMCR5: tm ++;
- /* fall through */
- case OMCR4:
- if (!pxa2xx_timer_has_tm4(s))
- goto badreg;
- return s->tm4[tm].control;
- case OSNR:
- return s->snapshot;
- default:
- badreg:
- hw_error("pxa2xx_timer_read: Bad offset " REG_FMT "\n", offset);
- }
-
- return 0;
-}
-
-static void pxa2xx_timer_write(void *opaque, hwaddr offset,
- uint64_t value, unsigned size)
-{
- int i, tm = 0;
- PXA2xxTimerInfo *s = (PXA2xxTimerInfo *) opaque;
-
- switch (offset) {
- case OSMR3: tm ++;
- /* fall through */
- case OSMR2: tm ++;
- /* fall through */
- case OSMR1: tm ++;
- /* fall through */
- case OSMR0:
- s->timer[tm].value = value;
- pxa2xx_timer_update(s, qemu_get_clock_ns(vm_clock));
- break;
- case OSMR11: tm ++;
- /* fall through */
- case OSMR10: tm ++;
- /* fall through */
- case OSMR9: tm ++;
- /* fall through */
- case OSMR8: tm ++;
- /* fall through */
- case OSMR7: tm ++;
- /* fall through */
- case OSMR6: tm ++;
- /* fall through */
- case OSMR5: tm ++;
- /* fall through */
- case OSMR4:
- if (!pxa2xx_timer_has_tm4(s))
- goto badreg;
- s->tm4[tm].tm.value = value;
- pxa2xx_timer_update4(s, qemu_get_clock_ns(vm_clock), tm);
- break;
- case OSCR:
- s->oldclock = s->clock;
- s->lastload = qemu_get_clock_ns(vm_clock);
- s->clock = value;
- pxa2xx_timer_update(s, s->lastload);
- break;
- case OSCR11: tm ++;
- /* fall through */
- case OSCR10: tm ++;
- /* fall through */
- case OSCR9: tm ++;
- /* fall through */
- case OSCR8: tm ++;
- /* fall through */
- case OSCR7: tm ++;
- /* fall through */
- case OSCR6: tm ++;
- /* fall through */
- case OSCR5: tm ++;
- /* fall through */
- case OSCR4:
- if (!pxa2xx_timer_has_tm4(s))
- goto badreg;
- s->tm4[tm].oldclock = s->tm4[tm].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;
- case OIER:
- 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 (value & 1)
- qemu_irq_lower(s->timer[i].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;
- break;
- case OMCR7: tm ++;
- /* fall through */
- case OMCR6: tm ++;
- /* fall through */
- case OMCR5: tm ++;
- /* fall through */
- case OMCR4:
- if (!pxa2xx_timer_has_tm4(s))
- goto badreg;
- s->tm4[tm].control = value & 0x0ff;
- /* XXX Stop if running (shouldn't happen) */
- if ((value & (1 << 7)) || tm == 0)
- s->tm4[tm].freq = pxa2xx_timer4_freq[value & 7];
- else {
- s->tm4[tm].freq = 0;
- pxa2xx_timer_update4(s, qemu_get_clock_ns(vm_clock), tm);
- }
- break;
- case OMCR11: tm ++;
- /* fall through */
- case OMCR10: tm ++;
- /* fall through */
- case OMCR9: tm ++;
- /* fall through */
- case OMCR8: tm += 4;
- if (!pxa2xx_timer_has_tm4(s))
- goto badreg;
- s->tm4[tm].control = value & 0x3ff;
- /* XXX Stop if running (shouldn't happen) */
- if ((value & (1 << 7)) || !(tm & 1))
- s->tm4[tm].freq =
- pxa2xx_timer4_freq[(value & (1 << 8)) ? 0 : (value & 7)];
- else {
- s->tm4[tm].freq = 0;
- pxa2xx_timer_update4(s, qemu_get_clock_ns(vm_clock), tm);
- }
- break;
- default:
- badreg:
- hw_error("pxa2xx_timer_write: Bad offset " REG_FMT "\n", offset);
- }
-}
-
-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)
-{
- PXA2xxTimer0 *t = (PXA2xxTimer0 *) opaque;
- PXA2xxTimerInfo *i = t->info;
-
- if (i->irq_enabled & (1 << t->num)) {
- i->events |= 1 << t->num;
- qemu_irq_raise(t->irq);
- }
-
- if (t->num == 3)
- if (i->reset3 & 1) {
- i->reset3 = 0;
- qemu_system_reset_request();
- }
-}
-
-static void pxa2xx_timer_tick4(void *opaque)
-{
- 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_ns(vm_clock), t->tm.num - 4);
- if (i->events & 0xff0)
- qemu_irq_raise(i->irq4);
-}
-
-static int pxa25x_timer_post_load(void *opaque, int version_id)
-{
- PXA2xxTimerInfo *s = (PXA2xxTimerInfo *) opaque;
- int64_t now;
- int i;
-
- now = qemu_get_clock_ns(vm_clock);
- pxa2xx_timer_update(s, now);
-
- if (pxa2xx_timer_has_tm4(s))
- for (i = 0; i < 8; i ++)
- pxa2xx_timer_update4(s, now, i);
-
- return 0;
-}
-
-static int pxa2xx_timer_init(SysBusDevice *dev)
-{
- int i;
- PXA2xxTimerInfo *s;
-
- s = FROM_SYSBUS(PXA2xxTimerInfo, dev);
- s->irq_enabled = 0;
- s->oldclock = 0;
- s->clock = 0;
- s->lastload = qemu_get_clock_ns(vm_clock);
- s->reset3 = 0;
-
- for (i = 0; i < 4; i ++) {
- s->timer[i].value = 0;
- sysbus_init_irq(dev, &s->timer[i].irq);
- s->timer[i].info = s;
- s->timer[i].num = i;
- 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);
-
- 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]);
- }
- }
-
- memory_region_init_io(&s->iomem, &pxa2xx_timer_ops, s,
- "pxa2xx-timer", 0x00001000);
- sysbus_init_mmio(dev, &s->iomem);
-
- return 0;
-}
-
-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)
-{
- return pxa2xx_timer_has_tm4(opaque);
-}
-
-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)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
-
- k->init = pxa2xx_timer_init;
- dc->desc = "PXA25x timer";
- dc->vmsd = &vmstate_pxa2xx_timer_regs;
- dc->props = pxa25x_timer_dev_properties;
-}
-
-static const TypeInfo pxa25x_timer_dev_info = {
- .name = "pxa25x-timer",
- .parent = TYPE_SYS_BUS_DEVICE,
- .instance_size = sizeof(PXA2xxTimerInfo),
- .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)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
-
- k->init = pxa2xx_timer_init;
- dc->desc = "PXA27x timer";
- dc->vmsd = &vmstate_pxa2xx_timer_regs;
- dc->props = pxa27x_timer_dev_properties;
-}
-
-static const TypeInfo pxa27x_timer_dev_info = {
- .name = "pxa27x-timer",
- .parent = TYPE_SYS_BUS_DEVICE,
- .instance_size = sizeof(PXA2xxTimerInfo),
- .class_init = pxa27x_timer_dev_class_init,
-};
-
-static void pxa2xx_timer_register_types(void)
-{
- type_register_static(&pxa25x_timer_dev_info);
- type_register_static(&pxa27x_timer_dev_info);
-}
-
-type_init(pxa2xx_timer_register_types)
generated by cgit v1.1 at 2024-12-25 19:05:16 +0000