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acpi, acpi_piix, vt82c686: factor out PM1_CNT logic 

factor out ACPI PM1_CNT logic. This will be used by ich9 acpi.

Cc: Blue Swirl <blauwirbel@gmail.com>
Cc: Huacai Chen <zltjiangshi@gmail.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Isaku Yamahata 2011-03-25 19:54:40 +09:00 committed by Aurelien Jarno
parent 04dc308f68
commit eaba51c573
4 changed files with 74 additions and 52 deletions
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49
hw/acpi.c
View File

@ -279,3 +279,52 @@ void acpi_pm_tmr_reset(ACPIPMTimer *tmr)
tmr->overflow_time = 0;
qemu_del_timer(tmr->timer);
}
/* ACPI PM1aCNT */
void acpi_pm1_cnt_init(ACPIPM1CNT *pm1_cnt, qemu_irq cmos_s3)
{
pm1_cnt->cmos_s3 = cmos_s3;
}
void acpi_pm1_cnt_write(ACPIPM1EVT *pm1a, ACPIPM1CNT *pm1_cnt, uint16_t val)
{
pm1_cnt->cnt = val & ~(ACPI_BITMASK_SLEEP_ENABLE);
if (val & ACPI_BITMASK_SLEEP_ENABLE) {
/* change suspend type */
uint16_t 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 */
pm1a->sts |=
(ACPI_BITMASK_WAKE_STATUS | ACPI_BITMASK_POWER_BUTTON_STATUS);
qemu_system_reset_request();
qemu_irq_raise(pm1_cnt->cmos_s3);
default:
break;
}
}
}
void acpi_pm1_cnt_update(ACPIPM1CNT *pm1_cnt,
bool sci_enable, bool sci_disable)
{
/* ACPI specs 3.0, 4.7.2.5 */
if (sci_enable) {
pm1_cnt->cnt |= ACPI_BITMASK_SCI_ENABLE;
} else if (sci_disable) {
pm1_cnt->cnt &= ~ACPI_BITMASK_SCI_ENABLE;
}
}
void acpi_pm1_cnt_reset(ACPIPM1CNT *pm1_cnt)
{
pm1_cnt->cnt = 0;
if (pm1_cnt->cmos_s3) {
qemu_irq_lower(pm1_cnt->cmos_s3);
}
}

14
hw/acpi.h
View File

@ -112,4 +112,18 @@ void acpi_pm1_evt_write_sts(ACPIPM1EVT *pm1, ACPIPMTimer *tmr, uint16_t val);
void acpi_pm1_evt_power_down(ACPIPM1EVT *pm1, ACPIPMTimer *tmr);
void acpi_pm1_evt_reset(ACPIPM1EVT *pm1);
/* PM1a_CNT: piix and ich9 don't implement PM1b CNT. */
struct ACPIPM1CNT {
uint16_t cnt;
qemu_irq cmos_s3;
};
typedef struct ACPIPM1CNT ACPIPM1CNT;
void acpi_pm1_cnt_init(ACPIPM1CNT *pm1_cnt, qemu_irq cmos_s3);
void acpi_pm1_cnt_write(ACPIPM1EVT *pm1a, ACPIPM1CNT *pm1_cnt, uint16_t val);
void acpi_pm1_cnt_update(ACPIPM1CNT *pm1_cnt,
bool sci_enable, bool sci_disable);
void acpi_pm1_cnt_reset(ACPIPM1CNT *pm1_cnt);
#endif /* !QEMU_HW_ACPI_H */

40
hw/acpi_piix4.c
View File

@ -55,7 +55,7 @@ typedef struct PIIX4PMState {
PCIDevice dev;
IORange ioport;
ACPIPM1EVT pm1a;
uint16_t pmcntrl;
ACPIPM1CNT pm1_cnt;
APMState apm;
@ -65,7 +65,6 @@ typedef struct PIIX4PMState {
uint32_t smb_io_base;
qemu_irq irq;
qemu_irq cmos_s3;
qemu_irq smi_irq;
int kvm_enabled;
@ -124,30 +123,7 @@ static void pm_ioport_write(IORange *ioport, uint64_t addr, unsigned width,
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->pm1a.sts |= (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;
}
}
}
acpi_pm1_cnt_write(&s->pm1a, &s->pm1_cnt, val);
break;
default:
break;
@ -170,7 +146,7 @@ static void pm_ioport_read(IORange *ioport, uint64_t addr, unsigned width,
val = s->pm1a.en;
break;
case 0x04:
val = s->pmcntrl;
val = s->pm1_cnt.cnt;
break;
case 0x08:
val = acpi_pm_tmr_get(&s->tmr);
@ -193,11 +169,7 @@ 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;
}
acpi_pm1_cnt_update(&s->pm1_cnt, val == ACPI_ENABLE, val == ACPI_DISABLE);
if (s->dev.config[0x5b] & (1 << 1)) {
if (s->smi_irq) {
@ -276,7 +248,7 @@ static const VMStateDescription vmstate_acpi = {
VMSTATE_PCI_DEVICE(dev, PIIX4PMState),
VMSTATE_UINT16(pm1a.sts, PIIX4PMState),
VMSTATE_UINT16(pm1a.en, PIIX4PMState),
VMSTATE_UINT16(pmcntrl, PIIX4PMState),
VMSTATE_UINT16(pm1_cnt.cnt, PIIX4PMState),
VMSTATE_STRUCT(apm, PIIX4PMState, 0, vmstate_apm, APMState),
VMSTATE_TIMER(tmr.timer, PIIX4PMState),
VMSTATE_INT64(tmr.overflow_time, PIIX4PMState),
@ -396,7 +368,7 @@ i2c_bus *piix4_pm_init(PCIBus *bus, int devfn, uint32_t smb_io_base,
s = DO_UPCAST(PIIX4PMState, dev, dev);
s->irq = sci_irq;
s->cmos_s3 = cmos_s3;
acpi_pm1_cnt_init(&s->pm1_cnt, cmos_s3);
s->smi_irq = smi_irq;
s->kvm_enabled = kvm_enabled;

23
hw/vt82c686.c
View File

@ -157,7 +157,7 @@ static void vt82c686b_write_config(PCIDevice * d, uint32_t address,
typedef struct VT686PMState {
PCIDevice dev;
ACPIPM1EVT pm1a;
uint16_t pmcntrl;
ACPIPM1CNT pm1_cnt;
APMState apm;
ACPIPMTimer tmr;
PMSMBus smb;
@ -209,21 +209,7 @@ static void pm_ioport_writew(void *opaque, uint32_t addr, uint32_t val)
pm_update_sci(s);
break;
case 0x04:
{
int sus_typ;
s->pmcntrl = val & ~(SUS_EN);
if (val & SUS_EN) {
/* change suspend type */
sus_typ = (val >> 10) & 3;
switch (sus_typ) {
case 0: /* soft power off */
qemu_system_shutdown_request();
break;
default:
break;
}
}
}
acpi_pm1_cnt_write(&s->pm1a, &s->pm1_cnt, val);
break;
default:
break;
@ -245,7 +231,7 @@ static uint32_t pm_ioport_readw(void *opaque, uint32_t addr)
val = s->pm1a.en;
break;
case 0x04:
val = s->pmcntrl;
val = s->pm1_cnt.cnt;
break;
default:
val = 0;
@ -322,7 +308,7 @@ static const VMStateDescription vmstate_acpi = {
VMSTATE_PCI_DEVICE(dev, VT686PMState),
VMSTATE_UINT16(pm1a.sts, VT686PMState),
VMSTATE_UINT16(pm1a.en, VT686PMState),
VMSTATE_UINT16(pmcntrl, VT686PMState),
VMSTATE_UINT16(pm1_cnt.cnt, VT686PMState),
VMSTATE_STRUCT(apm, VT686PMState, 0, vmstate_apm, APMState),
VMSTATE_TIMER(tmr.timer, VT686PMState),
VMSTATE_INT64(tmr.overflow_time, VT686PMState),
@ -446,6 +432,7 @@ static int vt82c686b_pm_initfn(PCIDevice *dev)
apm_init(&s->apm, NULL, s);
acpi_pm_tmr_init(&s->tmr, pm_tmr_timer);
acpi_pm1_cnt_init(&s->pm1_cnt, NULL);
pm_smbus_init(&s->dev.qdev, &s->smb);