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authorIsaku Yamahata <yamahata@valinux.co.jp>2010-05-14 16:29:02 +0900
committerBlue Swirl <blauwirbel@gmail.com>2010-05-15 15:30:49 +0000
commit93d89f63e5a297f8672daf5d8b7b4df2a999af61 (patch)
tree5a2d36d024ec85163115c0b0ee52fb733576578c /hw/acpi.c
parent990b150e7c207cf00cc1ec61baa17d770307fac4 (diff)
acpi: split acpi.c into the common part and the piix4 part.
Split acpi.c into the common part and the piix4 specific part. The common part will be used later. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Acked-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Diffstat (limited to 'hw/acpi.c')
-rw-r--r--hw/acpi.c562
1 files changed, 0 insertions, 562 deletions
diff --git a/hw/acpi.c b/hw/acpi.c
index 891378cd2..4c4df56fc 100644
--- a/hw/acpi.c
+++ b/hw/acpi.c
@@ -17,572 +17,10 @@
*/
#include "hw.h"
#include "pc.h"
-#include "apm.h"
-#include "pm_smbus.h"
#include "pci.h"
-#include "qemu-timer.h"
#include "sysemu.h"
-#include "i2c.h"
-#include "smbus.h"
#include "acpi.h"
-//#define DEBUG
-
-#define ACPI_DBG_IO_ADDR 0xb044
-
-typedef struct PIIX4PMState {
- PCIDevice dev;
- uint16_t pmsts;
- uint16_t pmen;
- uint16_t pmcntrl;
-
- APMState apm;
-
- QEMUTimer *tmr_timer;
- int64_t tmr_overflow_time;
-
- PMSMBus smb;
-
- qemu_irq irq;
- qemu_irq cmos_s3;
- qemu_irq smi_irq;
- int kvm_enabled;
-} PIIX4PMState;
-
-#define ACPI_ENABLE 0xf1
-#define ACPI_DISABLE 0xf0
-
-static PIIX4PMState *pm_state;
-
-static uint32_t get_pmtmr(PIIX4PMState *s)
-{
- uint32_t d;
- d = muldiv64(qemu_get_clock(vm_clock), PM_TIMER_FREQUENCY, get_ticks_per_sec());
- return d & 0xffffff;
-}
-
-static int get_pmsts(PIIX4PMState *s)
-{
- int64_t d;
-
- d = muldiv64(qemu_get_clock(vm_clock), PM_TIMER_FREQUENCY,
- get_ticks_per_sec());
- if (d >= s->tmr_overflow_time)
- s->pmsts |= ACPI_BITMASK_TIMER_STATUS;
- return s->pmsts;
-}
-
-static void pm_update_sci(PIIX4PMState *s)
-{
- int sci_level, pmsts;
- int64_t expire_time;
-
- pmsts = get_pmsts(s);
- sci_level = (((pmsts & s->pmen) &
- (ACPI_BITMASK_RT_CLOCK_ENABLE |
- ACPI_BITMASK_POWER_BUTTON_ENABLE |
- ACPI_BITMASK_GLOBAL_LOCK_ENABLE |
- ACPI_BITMASK_TIMER_ENABLE)) != 0);
- qemu_set_irq(s->irq, sci_level);
- /* schedule a timer interruption if needed */
- if ((s->pmen & ACPI_BITMASK_TIMER_ENABLE) &&
- !(pmsts & ACPI_BITMASK_TIMER_STATUS)) {
- expire_time = muldiv64(s->tmr_overflow_time, get_ticks_per_sec(),
- PM_TIMER_FREQUENCY);
- qemu_mod_timer(s->tmr_timer, expire_time);
- } else {
- qemu_del_timer(s->tmr_timer);
- }
-}
-
-static void pm_tmr_timer(void *opaque)
-{
- PIIX4PMState *s = opaque;
- pm_update_sci(s);
-}
-
-static void pm_ioport_writew(void *opaque, uint32_t addr, uint32_t val)
-{
- PIIX4PMState *s = opaque;
- addr &= 0x3f;
- switch(addr) {
- case 0x00:
- {
- int64_t d;
- int pmsts;
- pmsts = get_pmsts(s);
- if (pmsts & val & ACPI_BITMASK_TIMER_STATUS) {
- /* if TMRSTS is reset, then compute the new overflow time */
- d = muldiv64(qemu_get_clock(vm_clock), PM_TIMER_FREQUENCY,
- get_ticks_per_sec());
- s->tmr_overflow_time = (d + 0x800000LL) & ~0x7fffffLL;
- }
- s->pmsts &= ~val;
- pm_update_sci(s);
- }
- break;
- case 0x02:
- s->pmen = val;
- pm_update_sci(s);
- break;
- case 0x04:
- {
- int sus_typ;
- s->pmcntrl = val & ~(ACPI_BITMASK_SLEEP_ENABLE);
- if (val & ACPI_BITMASK_SLEEP_ENABLE) {
- /* change suspend type */
- sus_typ = (val >> 10) & 7;
- switch(sus_typ) {
- case 0: /* soft power off */
- qemu_system_shutdown_request();
- break;
- case 1:
- /* ACPI_BITMASK_WAKE_STATUS should be set on resume.
- Pretend that resume was caused by power button */
- s->pmsts |= (ACPI_BITMASK_WAKE_STATUS |
- ACPI_BITMASK_POWER_BUTTON_STATUS);
- qemu_system_reset_request();
- if (s->cmos_s3) {
- qemu_irq_raise(s->cmos_s3);
- }
- default:
- break;
- }
- }
- }
- break;
- default:
- break;
- }
-#ifdef DEBUG
- printf("PM writew port=0x%04x val=0x%04x\n", addr, val);
-#endif
-}
-
-static uint32_t pm_ioport_readw(void *opaque, uint32_t addr)
-{
- PIIX4PMState *s = opaque;
- uint32_t val;
-
- addr &= 0x3f;
- switch(addr) {
- case 0x00:
- val = get_pmsts(s);
- break;
- case 0x02:
- val = s->pmen;
- break;
- case 0x04:
- val = s->pmcntrl;
- break;
- default:
- val = 0;
- break;
- }
-#ifdef DEBUG
- printf("PM readw port=0x%04x val=0x%04x\n", addr, val);
-#endif
- return val;
-}
-
-static void pm_ioport_writel(void *opaque, uint32_t addr, uint32_t val)
-{
- // PIIX4PMState *s = opaque;
-#ifdef DEBUG
- addr &= 0x3f;
- printf("PM writel port=0x%04x val=0x%08x\n", addr, val);
-#endif
-}
-
-static uint32_t pm_ioport_readl(void *opaque, uint32_t addr)
-{
- PIIX4PMState *s = opaque;
- uint32_t val;
-
- addr &= 0x3f;
- switch(addr) {
- case 0x08:
- val = get_pmtmr(s);
- break;
- default:
- val = 0;
- break;
- }
-#ifdef DEBUG
- printf("PM readl port=0x%04x val=0x%08x\n", addr, val);
-#endif
- return val;
-}
-
-static void apm_ctrl_changed(uint32_t val, void *arg)
-{
- PIIX4PMState *s = arg;
-
- /* ACPI specs 3.0, 4.7.2.5 */
- if (val == ACPI_ENABLE) {
- s->pmcntrl |= ACPI_BITMASK_SCI_ENABLE;
- } else if (val == ACPI_DISABLE) {
- s->pmcntrl &= ~ACPI_BITMASK_SCI_ENABLE;
- }
-
- if (s->dev.config[0x5b] & (1 << 1)) {
- if (s->smi_irq) {
- qemu_irq_raise(s->smi_irq);
- }
- }
-}
-
-static void acpi_dbg_writel(void *opaque, uint32_t addr, uint32_t val)
-{
-#if defined(DEBUG)
- printf("ACPI: DBG: 0x%08x\n", val);
-#endif
-}
-
-static void pm_io_space_update(PIIX4PMState *s)
-{
- uint32_t pm_io_base;
-
- if (s->dev.config[0x80] & 1) {
- pm_io_base = le32_to_cpu(*(uint32_t *)(s->dev.config + 0x40));
- pm_io_base &= 0xffc0;
-
- /* XXX: need to improve memory and ioport allocation */
-#if defined(DEBUG)
- printf("PM: mapping to 0x%x\n", pm_io_base);
-#endif
- register_ioport_write(pm_io_base, 64, 2, pm_ioport_writew, s);
- register_ioport_read(pm_io_base, 64, 2, pm_ioport_readw, s);
- register_ioport_write(pm_io_base, 64, 4, pm_ioport_writel, s);
- register_ioport_read(pm_io_base, 64, 4, pm_ioport_readl, s);
- }
-}
-
-static void pm_write_config(PCIDevice *d,
- uint32_t address, uint32_t val, int len)
-{
- pci_default_write_config(d, address, val, len);
- if (range_covers_byte(address, len, 0x80))
- pm_io_space_update((PIIX4PMState *)d);
-}
-
-static int vmstate_acpi_post_load(void *opaque, int version_id)
-{
- PIIX4PMState *s = opaque;
-
- pm_io_space_update(s);
- return 0;
-}
-
-static const VMStateDescription vmstate_acpi = {
- .name = "piix4_pm",
- .version_id = 1,
- .minimum_version_id = 1,
- .minimum_version_id_old = 1,
- .post_load = vmstate_acpi_post_load,
- .fields = (VMStateField []) {
- VMSTATE_PCI_DEVICE(dev, PIIX4PMState),
- VMSTATE_UINT16(pmsts, PIIX4PMState),
- VMSTATE_UINT16(pmen, PIIX4PMState),
- VMSTATE_UINT16(pmcntrl, PIIX4PMState),
- VMSTATE_STRUCT(apm, PIIX4PMState, 0, vmstate_apm, APMState),
- VMSTATE_TIMER(tmr_timer, PIIX4PMState),
- VMSTATE_INT64(tmr_overflow_time, PIIX4PMState),
- VMSTATE_END_OF_LIST()
- }
-};
-
-static void piix4_reset(void *opaque)
-{
- PIIX4PMState *s = opaque;
- uint8_t *pci_conf = s->dev.config;
-
- pci_conf[0x58] = 0;
- pci_conf[0x59] = 0;
- pci_conf[0x5a] = 0;
- pci_conf[0x5b] = 0;
-
- if (s->kvm_enabled) {
- /* Mark SMM as already inited (until KVM supports SMM). */
- pci_conf[0x5B] = 0x02;
- }
-}
-
-static void piix4_powerdown(void *opaque, int irq, int power_failing)
-{
- PIIX4PMState *s = opaque;
-
- if (!s) {
- qemu_system_shutdown_request();
- } else if (s->pmen & ACPI_BITMASK_POWER_BUTTON_ENABLE) {
- s->pmsts |= ACPI_BITMASK_POWER_BUTTON_STATUS;
- pm_update_sci(s);
- }
-}
-
-i2c_bus *piix4_pm_init(PCIBus *bus, int devfn, uint32_t smb_io_base,
- qemu_irq sci_irq, qemu_irq cmos_s3, qemu_irq smi_irq,
- int kvm_enabled)
-{
- PIIX4PMState *s;
- uint8_t *pci_conf;
-
- s = (PIIX4PMState *)pci_register_device(bus,
- "PM", sizeof(PIIX4PMState),
- devfn, NULL, pm_write_config);
- pm_state = s;
- pci_conf = s->dev.config;
- pci_config_set_vendor_id(pci_conf, PCI_VENDOR_ID_INTEL);
- pci_config_set_device_id(pci_conf, PCI_DEVICE_ID_INTEL_82371AB_3);
- pci_conf[0x06] = 0x80;
- pci_conf[0x07] = 0x02;
- pci_conf[0x08] = 0x03; // revision number
- pci_conf[0x09] = 0x00;
- pci_config_set_class(pci_conf, PCI_CLASS_BRIDGE_OTHER);
- pci_conf[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type
- pci_conf[0x3d] = 0x01; // interrupt pin 1
-
- pci_conf[0x40] = 0x01; /* PM io base read only bit */
-
- /* APM */
- apm_init(&s->apm, apm_ctrl_changed, s);
-
- register_ioport_write(ACPI_DBG_IO_ADDR, 4, 4, acpi_dbg_writel, s);
-
- s->kvm_enabled = kvm_enabled;
- if (s->kvm_enabled) {
- /* Mark SMM as already inited to prevent SMM from running. KVM does not
- * support SMM mode. */
- pci_conf[0x5B] = 0x02;
- }
-
- /* XXX: which specification is used ? The i82731AB has different
- mappings */
- pci_conf[0x5f] = (parallel_hds[0] != NULL ? 0x80 : 0) | 0x10;
- pci_conf[0x63] = 0x60;
- pci_conf[0x67] = (serial_hds[0] != NULL ? 0x08 : 0) |
- (serial_hds[1] != NULL ? 0x90 : 0);
-
- pci_conf[0x90] = smb_io_base | 1;
- pci_conf[0x91] = smb_io_base >> 8;
- pci_conf[0xd2] = 0x09;
- register_ioport_write(smb_io_base, 64, 1, smb_ioport_writeb, &s->smb);
- register_ioport_read(smb_io_base, 64, 1, smb_ioport_readb, &s->smb);
-
- s->tmr_timer = qemu_new_timer(vm_clock, pm_tmr_timer, s);
-
- qemu_system_powerdown = *qemu_allocate_irqs(piix4_powerdown, s, 1);
-
- vmstate_register(0, &vmstate_acpi, s);
-
- pm_smbus_init(NULL, &s->smb);
- s->irq = sci_irq;
- s->cmos_s3 = cmos_s3;
- s->smi_irq = smi_irq;
- qemu_register_reset(piix4_reset, s);
-
- return s->smb.smbus;
-}
-
-#define GPE_BASE 0xafe0
-#define PCI_BASE 0xae00
-#define PCI_EJ_BASE 0xae08
-
-struct gpe_regs {
- uint16_t sts; /* status */
- uint16_t en; /* enabled */
-};
-
-struct pci_status {
- uint32_t up;
- uint32_t down;
-};
-
-static struct gpe_regs gpe;
-static struct pci_status pci0_status;
-
-static uint32_t gpe_read_val(uint16_t val, uint32_t addr)
-{
- if (addr & 1)
- return (val >> 8) & 0xff;
- return val & 0xff;
-}
-
-static uint32_t gpe_readb(void *opaque, uint32_t addr)
-{
- uint32_t val = 0;
- struct gpe_regs *g = opaque;
- switch (addr) {
- case GPE_BASE:
- case GPE_BASE + 1:
- val = gpe_read_val(g->sts, addr);
- break;
- case GPE_BASE + 2:
- case GPE_BASE + 3:
- val = gpe_read_val(g->en, addr);
- break;
- default:
- break;
- }
-
-#if defined(DEBUG)
- printf("gpe read %x == %x\n", addr, val);
-#endif
- return val;
-}
-
-static void gpe_write_val(uint16_t *cur, int addr, uint32_t val)
-{
- if (addr & 1)
- *cur = (*cur & 0xff) | (val << 8);
- else
- *cur = (*cur & 0xff00) | (val & 0xff);
-}
-
-static void gpe_reset_val(uint16_t *cur, int addr, uint32_t val)
-{
- uint16_t x1, x0 = val & 0xff;
- int shift = (addr & 1) ? 8 : 0;
-
- x1 = (*cur >> shift) & 0xff;
-
- x1 = x1 & ~x0;
-
- *cur = (*cur & (0xff << (8 - shift))) | (x1 << shift);
-}
-
-static void gpe_writeb(void *opaque, uint32_t addr, uint32_t val)
-{
- struct gpe_regs *g = opaque;
- switch (addr) {
- case GPE_BASE:
- case GPE_BASE + 1:
- gpe_reset_val(&g->sts, addr, val);
- break;
- case GPE_BASE + 2:
- case GPE_BASE + 3:
- gpe_write_val(&g->en, addr, val);
- break;
- default:
- break;
- }
-
-#if defined(DEBUG)
- printf("gpe write %x <== %d\n", addr, val);
-#endif
-}
-
-static uint32_t pcihotplug_read(void *opaque, uint32_t addr)
-{
- uint32_t val = 0;
- struct pci_status *g = opaque;
- switch (addr) {
- case PCI_BASE:
- val = g->up;
- break;
- case PCI_BASE + 4:
- val = g->down;
- break;
- default:
- break;
- }
-
-#if defined(DEBUG)
- printf("pcihotplug read %x == %x\n", addr, val);
-#endif
- return val;
-}
-
-static void pcihotplug_write(void *opaque, uint32_t addr, uint32_t val)
-{
- struct pci_status *g = opaque;
- switch (addr) {
- case PCI_BASE:
- g->up = val;
- break;
- case PCI_BASE + 4:
- g->down = val;
- break;
- }
-
-#if defined(DEBUG)
- printf("pcihotplug write %x <== %d\n", addr, val);
-#endif
-}
-
-static uint32_t pciej_read(void *opaque, uint32_t addr)
-{
-#if defined(DEBUG)
- printf("pciej read %x\n", addr);
-#endif
- return 0;
-}
-
-static void pciej_write(void *opaque, uint32_t addr, uint32_t val)
-{
- BusState *bus = opaque;
- DeviceState *qdev, *next;
- PCIDevice *dev;
- int slot = ffs(val) - 1;
-
- QLIST_FOREACH_SAFE(qdev, &bus->children, sibling, next) {
- dev = DO_UPCAST(PCIDevice, qdev, qdev);
- if (PCI_SLOT(dev->devfn) == slot) {
- qdev_free(qdev);
- }
- }
-
-
-#if defined(DEBUG)
- printf("pciej write %x <== %d\n", addr, val);
-#endif
-}
-
-static int piix4_device_hotplug(PCIDevice *dev, int state);
-
-void piix4_acpi_system_hot_add_init(PCIBus *bus)
-{
- register_ioport_write(GPE_BASE, 4, 1, gpe_writeb, &gpe);
- register_ioport_read(GPE_BASE, 4, 1, gpe_readb, &gpe);
-
- register_ioport_write(PCI_BASE, 8, 4, pcihotplug_write, &pci0_status);
- register_ioport_read(PCI_BASE, 8, 4, pcihotplug_read, &pci0_status);
-
- register_ioport_write(PCI_EJ_BASE, 4, 4, pciej_write, bus);
- register_ioport_read(PCI_EJ_BASE, 4, 4, pciej_read, bus);
-
- pci_bus_hotplug(bus, piix4_device_hotplug);
-}
-
-static void enable_device(struct pci_status *p, struct gpe_regs *g, int slot)
-{
- g->sts |= 2;
- p->up |= (1 << slot);
-}
-
-static void disable_device(struct pci_status *p, struct gpe_regs *g, int slot)
-{
- g->sts |= 2;
- p->down |= (1 << slot);
-}
-
-static int piix4_device_hotplug(PCIDevice *dev, int state)
-{
- int slot = PCI_SLOT(dev->devfn);
-
- pci0_status.up = 0;
- pci0_status.down = 0;
- if (state)
- enable_device(&pci0_status, &gpe, slot);
- else
- disable_device(&pci0_status, &gpe, slot);
- if (gpe.en & 2) {
- qemu_set_irq(pm_state->irq, 1);
- qemu_set_irq(pm_state->irq, 0);
- }
- return 0;
-}
-
struct acpi_table_header
{
char signature [4]; /* ACPI signature (4 ASCII characters) */