@@ -15,6 +15,7 @@
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>
*/
+#include "sysemu.h"
#include "hw.h"
#include "pc.h"
#include "acpi.h"
@@ -218,6 +219,42 @@ out:
return -1;
}
+/* ACPI PM1a EVT */
+uint16_t acpi_pm1_evt_get_sts(ACPIPM1EVT *pm1, int64_t overflow_time)
+{
+ int64_t d = acpi_pm_tmr_get_clock();
+ if (d >= overflow_time) {
+ pm1->sts |= ACPI_BITMASK_TIMER_STATUS;
+ }
+ return pm1->sts;
+}
+
+void acpi_pm1_evt_write_sts(ACPIPM1EVT *pm1, ACPIPMTimer *tmr, uint16_t val)
+{
+ uint16_t pm1_sts = acpi_pm1_evt_get_sts(pm1, tmr->overflow_time);
+ if (pm1_sts & val & ACPI_BITMASK_TIMER_STATUS) {
+ /* if TMRSTS is reset, then compute the new overflow time */
+ acpi_pm_tmr_calc_overflow_time(tmr);
+ }
+ pm1->sts &= ~val;
+}
+
+void acpi_pm1_evt_power_down(ACPIPM1EVT *pm1, ACPIPMTimer *tmr)
+{
+ if (!pm1) {
+ qemu_system_shutdown_request();
+ } else if (pm1->en & ACPI_BITMASK_POWER_BUTTON_ENABLE) {
+ pm1->sts |= ACPI_BITMASK_POWER_BUTTON_STATUS;
+ tmr->update_sci(tmr);
+ }
+}
+
+void acpi_pm1_evt_reset(ACPIPM1EVT *pm1)
+{
+ pm1->sts = 0;
+ pm1->en = 0;
+}
+
/* ACPI PM_TMR */
void acpi_pm_tmr_update(ACPIPMTimer *tmr, bool enable)
{
@@ -99,4 +99,17 @@ static inline int64_t acpi_pm_tmr_get_clock(void)
get_ticks_per_sec());
}
+/* PM1a_EVT: piix and ich9 don't implement PM1b. */
+struct ACPIPM1EVT
+{
+ uint16_t sts;
+ uint16_t en;
+};
+typedef struct ACPIPM1EVT ACPIPM1EVT;
+
+uint16_t acpi_pm1_evt_get_sts(ACPIPM1EVT *pm1, int64_t overflow_time);
+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);
+
#endif /* !QEMU_HW_ACPI_H */
@@ -54,8 +54,7 @@ struct pci_status {
typedef struct PIIX4PMState {
PCIDevice dev;
IORange ioport;
- uint16_t pmsts;
- uint16_t pmen;
+ ACPIPM1EVT pm1a;
uint16_t pmcntrl;
APMState apm;
@@ -81,20 +80,12 @@ static void piix4_acpi_system_hot_add_init(PCIBus *bus, PIIX4PMState *s);
#define ACPI_ENABLE 0xf1
#define ACPI_DISABLE 0xf0
-static int get_pmsts(PIIX4PMState *s)
-{
- int64_t d = acpi_pm_tmr_get_clock();
- 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;
- pmsts = get_pmsts(s);
- sci_level = (((pmsts & s->pmen) &
+ pmsts = acpi_pm1_evt_get_sts(&s->pm1a, s->tmr.overflow_time);
+ sci_level = (((pmsts & s->pm1a.en) &
(ACPI_BITMASK_RT_CLOCK_ENABLE |
ACPI_BITMASK_POWER_BUTTON_ENABLE |
ACPI_BITMASK_GLOBAL_LOCK_ENABLE |
@@ -103,7 +94,7 @@ static void pm_update_sci(PIIX4PMState *s)
qemu_set_irq(s->irq, sci_level);
/* schedule a timer interruption if needed */
- acpi_pm_tmr_update(&s->tmr, (s->pmen & ACPI_BITMASK_TIMER_ENABLE) &&
+ acpi_pm_tmr_update(&s->tmr, (s->pm1a.en & ACPI_BITMASK_TIMER_ENABLE) &&
!(pmsts & ACPI_BITMASK_TIMER_STATUS));
}
@@ -125,19 +116,11 @@ static void pm_ioport_write(IORange *ioport, uint64_t addr, unsigned width,
switch(addr) {
case 0x00:
- {
- int pmsts;
- pmsts = get_pmsts(s);
- if (pmsts & val & ACPI_BITMASK_TIMER_STATUS) {
- /* if TMRSTS is reset, then compute the new overflow time */
- acpi_pm_tmr_calc_overflow_time(&s->tmr);
- }
- s->pmsts &= ~val;
- pm_update_sci(s);
- }
+ acpi_pm1_evt_write_sts(&s->pm1a, &s->tmr, val);
+ pm_update_sci(s);
break;
case 0x02:
- s->pmen = val;
+ s->pm1a.en = val;
pm_update_sci(s);
break;
case 0x04:
@@ -154,8 +137,8 @@ static void pm_ioport_write(IORange *ioport, uint64_t addr, unsigned width,
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);
+ 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);
@@ -180,10 +163,10 @@ static void pm_ioport_read(IORange *ioport, uint64_t addr, unsigned width,
switch(addr) {
case 0x00:
- val = get_pmsts(s);
+ val = acpi_pm1_evt_get_sts(&s->pm1a, s->tmr.overflow_time);
break;
case 0x02:
- val = s->pmen;
+ val = s->pm1a.en;
break;
case 0x04:
val = s->pmcntrl;
@@ -290,8 +273,8 @@ static const VMStateDescription vmstate_acpi = {
.post_load = vmstate_acpi_post_load,
.fields = (VMStateField []) {
VMSTATE_PCI_DEVICE(dev, PIIX4PMState),
- VMSTATE_UINT16(pmsts, PIIX4PMState),
- VMSTATE_UINT16(pmen, PIIX4PMState),
+ VMSTATE_UINT16(pm1a.sts, PIIX4PMState),
+ VMSTATE_UINT16(pm1a.en, PIIX4PMState),
VMSTATE_UINT16(pmcntrl, PIIX4PMState),
VMSTATE_STRUCT(apm, PIIX4PMState, 0, vmstate_apm, APMState),
VMSTATE_TIMER(tmr.timer, PIIX4PMState),
@@ -342,13 +325,10 @@ static void piix4_reset(void *opaque)
static void piix4_powerdown(void *opaque, int irq, int power_failing)
{
PIIX4PMState *s = opaque;
+ ACPIPM1EVT *pm1a = s? &s->pm1a: NULL;
+ ACPIPMTimer *tmr = s? &s->tmr: NULL;
- 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);
- }
+ acpi_pm1_evt_power_down(pm1a, tmr);
}
static int piix4_pm_initfn(PCIDevice *dev)
factor out ACPI PM1a EVT logic. Later this will be used by ich9 acpi. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> --- hw/acpi.c | 37 +++++++++++++++++++++++++++++++++++++ hw/acpi.h | 13 +++++++++++++ hw/acpi_piix4.c | 52 ++++++++++++++++------------------------------------ 3 files changed, 66 insertions(+), 36 deletions(-)