acpi: add acpi constants from linux header files and use them. (990b150e) · Commits · SUMMER2020 / students / proj-2021291

hw/acpi.c

+25 −31

Original line number	Diff line number	Diff line
		@@ -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);
		}
		}

hw/acpi.h

0 → 100644

+78 −0

Original line number	Diff line number	Diff line
		#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 */