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-rw-r--r--hw/acpi.c56
-rw-r--r--hw/acpi.h78
2 files changed, 103 insertions, 31 deletions
diff --git a/hw/acpi.c b/hw/acpi.c
index 8dc9538..891378c 100644
--- a/hw/acpi.c
+++ b/hw/acpi.c
@@ -24,12 +24,10 @@
#include "sysemu.h"
#include "i2c.h"
#include "smbus.h"
+#include "acpi.h"
//#define DEBUG
-/* i82731AB (PIIX4) compatible power management function */
-#define PM_FREQ 3579545
-
#define ACPI_DBG_IO_ADDR 0xb044
typedef struct PIIX4PMState {
@@ -51,17 +49,6 @@ typedef struct PIIX4PMState {
int kvm_enabled;
} PIIX4PMState;
-#define RSM_STS (1 << 15)
-#define PWRBTN_STS (1 << 8)
-#define RTC_EN (1 << 10)
-#define PWRBTN_EN (1 << 8)
-#define GBL_EN (1 << 5)
-#define TMROF_EN (1 << 0)
-
-#define SCI_EN (1 << 0)
-
-#define SUS_EN (1 << 13)
-
#define ACPI_ENABLE 0xf1
#define ACPI_DISABLE 0xf0
@@ -70,7 +57,7 @@ static PIIX4PMState *pm_state;
static uint32_t get_pmtmr(PIIX4PMState *s)
{
uint32_t d;
- d = muldiv64(qemu_get_clock(vm_clock), PM_FREQ, get_ticks_per_sec());
+ d = muldiv64(qemu_get_clock(vm_clock), PM_TIMER_FREQUENCY, get_ticks_per_sec());
return d & 0xffffff;
}
@@ -78,9 +65,10 @@ static int get_pmsts(PIIX4PMState *s)
{
int64_t d;
- d = muldiv64(qemu_get_clock(vm_clock), PM_FREQ, get_ticks_per_sec());
+ d = muldiv64(qemu_get_clock(vm_clock), PM_TIMER_FREQUENCY,
+ get_ticks_per_sec());
if (d >= s->tmr_overflow_time)
- s->pmsts |= TMROF_EN;
+ s->pmsts |= ACPI_BITMASK_TIMER_STATUS;
return s->pmsts;
}
@@ -91,11 +79,16 @@ static void pm_update_sci(PIIX4PMState *s)
pmsts = get_pmsts(s);
sci_level = (((pmsts & s->pmen) &
- (RTC_EN | PWRBTN_EN | GBL_EN | TMROF_EN)) != 0);
+ (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 & TMROF_EN) && !(pmsts & TMROF_EN)) {
- expire_time = muldiv64(s->tmr_overflow_time, get_ticks_per_sec(), PM_FREQ);
+ 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);
@@ -118,9 +111,9 @@ static void pm_ioport_writew(void *opaque, uint32_t addr, uint32_t val)
int64_t d;
int pmsts;
pmsts = get_pmsts(s);
- if (pmsts & val & TMROF_EN) {
+ 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_FREQ,
+ d = muldiv64(qemu_get_clock(vm_clock), PM_TIMER_FREQUENCY,
get_ticks_per_sec());
s->tmr_overflow_time = (d + 0x800000LL) & ~0x7fffffLL;
}
@@ -135,8 +128,8 @@ static void pm_ioport_writew(void *opaque, uint32_t addr, uint32_t val)
case 0x04:
{
int sus_typ;
- s->pmcntrl = val & ~(SUS_EN);
- if (val & SUS_EN) {
+ s->pmcntrl = val & ~(ACPI_BITMASK_SLEEP_ENABLE);
+ if (val & ACPI_BITMASK_SLEEP_ENABLE) {
/* change suspend type */
sus_typ = (val >> 10) & 7;
switch(sus_typ) {
@@ -144,9 +137,10 @@ static void pm_ioport_writew(void *opaque, uint32_t addr, uint32_t val)
qemu_system_shutdown_request();
break;
case 1:
- /* RSM_STS should be set on resume. Pretend that resume
- was caused by power button */
- s->pmsts |= (RSM_STS | PWRBTN_STS);
+ /* 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);
@@ -226,9 +220,9 @@ static void apm_ctrl_changed(uint32_t val, void *arg)
/* ACPI specs 3.0, 4.7.2.5 */
if (val == ACPI_ENABLE) {
- s->pmcntrl |= SCI_EN;
+ s->pmcntrl |= ACPI_BITMASK_SCI_ENABLE;
} else if (val == ACPI_DISABLE) {
- s->pmcntrl &= ~SCI_EN;
+ s->pmcntrl &= ~ACPI_BITMASK_SCI_ENABLE;
}
if (s->dev.config[0x5b] & (1 << 1)) {
@@ -320,8 +314,8 @@ static void piix4_powerdown(void *opaque, int irq, int power_failing)
if (!s) {
qemu_system_shutdown_request();
- } else if (s->pmen & PWRBTN_EN) {
- s->pmsts |= PWRBTN_EN;
+ } else if (s->pmen & ACPI_BITMASK_POWER_BUTTON_ENABLE) {
+ s->pmsts |= ACPI_BITMASK_POWER_BUTTON_STATUS;
pm_update_sci(s);
}
}
diff --git a/hw/acpi.h b/hw/acpi.h
new file mode 100644
index 0000000..51b56b6
--- /dev/null
+++ b/hw/acpi.h
@@ -0,0 +1,78 @@
+#ifndef QEMU_HW_ACPI_H
+#define QEMU_HW_ACPI_H
+/*
+ * Copyright (c) 2009 Isaku Yamahata <yamahata at valinux co jp>
+ * VA Linux Systems Japan K.K.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA
+ */
+
+/* from linux include/acpi/actype.h */
+/* Default ACPI register widths */
+
+#define ACPI_GPE_REGISTER_WIDTH 8
+#define ACPI_PM1_REGISTER_WIDTH 16
+#define ACPI_PM2_REGISTER_WIDTH 8
+#define ACPI_PM_TIMER_WIDTH 32
+
+/* PM Timer ticks per second (HZ) */
+#define PM_TIMER_FREQUENCY 3579545
+
+
+/* ACPI fixed hardware registers */
+
+/* from linux/drivers/acpi/acpica/aclocal.h */
+/* Masks used to access the bit_registers */
+
+/* PM1x_STS */
+#define ACPI_BITMASK_TIMER_STATUS 0x0001
+#define ACPI_BITMASK_BUS_MASTER_STATUS 0x0010
+#define ACPI_BITMASK_GLOBAL_LOCK_STATUS 0x0020
+#define ACPI_BITMASK_POWER_BUTTON_STATUS 0x0100
+#define ACPI_BITMASK_SLEEP_BUTTON_STATUS 0x0200
+#define ACPI_BITMASK_RT_CLOCK_STATUS 0x0400
+#define ACPI_BITMASK_PCIEXP_WAKE_STATUS 0x4000 /* ACPI 3.0 */
+#define ACPI_BITMASK_WAKE_STATUS 0x8000
+
+#define ACPI_BITMASK_ALL_FIXED_STATUS (\
+ ACPI_BITMASK_TIMER_STATUS | \
+ ACPI_BITMASK_BUS_MASTER_STATUS | \
+ ACPI_BITMASK_GLOBAL_LOCK_STATUS | \
+ ACPI_BITMASK_POWER_BUTTON_STATUS | \
+ ACPI_BITMASK_SLEEP_BUTTON_STATUS | \
+ ACPI_BITMASK_RT_CLOCK_STATUS | \
+ ACPI_BITMASK_WAKE_STATUS)
+
+/* PM1x_EN */
+#define ACPI_BITMASK_TIMER_ENABLE 0x0001
+#define ACPI_BITMASK_GLOBAL_LOCK_ENABLE 0x0020
+#define ACPI_BITMASK_POWER_BUTTON_ENABLE 0x0100
+#define ACPI_BITMASK_SLEEP_BUTTON_ENABLE 0x0200
+#define ACPI_BITMASK_RT_CLOCK_ENABLE 0x0400
+#define ACPI_BITMASK_PCIEXP_WAKE_DISABLE 0x4000 /* ACPI 3.0 */
+
+/* PM1x_CNT */
+#define ACPI_BITMASK_SCI_ENABLE 0x0001
+#define ACPI_BITMASK_BUS_MASTER_RLD 0x0002
+#define ACPI_BITMASK_GLOBAL_LOCK_RELEASE 0x0004
+#define ACPI_BITMASK_SLEEP_TYPE 0x1C00
+#define ACPI_BITMASK_SLEEP_ENABLE 0x2000
+
+/* PM2_CNT */
+#define ACPI_BITMASK_ARB_DISABLE 0x0001
+
+/* PM_TMR */
+
+#endif /* !QEMU_HW_ACPI_H */
generated by cgit v1.1 at 2024-12-28 01:02:38 +0000