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#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, see
* <http://www.gnu.org/licenses/>.
*/
#include "qapi/error.h"
#include "qemu/typedefs.h"
#include "qemu/notify.h"
#include "qemu/option.h"
#include "exec/memory.h"
#include "hw/irq.h"
/*
* current device naming scheme supports up to 256 memory devices
*/
#define ACPI_MAX_RAM_SLOTS 256
/* 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 */
#define ACPI_BITMASK_PM1_COMMON_ENABLED ( \
ACPI_BITMASK_RT_CLOCK_ENABLE | \
ACPI_BITMASK_POWER_BUTTON_ENABLE | \
ACPI_BITMASK_GLOBAL_LOCK_ENABLE | \
ACPI_BITMASK_TIMER_ENABLE)
/* 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
/* These values are part of guest ABI, and can not be changed */
typedef enum {
ACPI_PCI_HOTPLUG_STATUS = 2,
ACPI_CPU_HOTPLUG_STATUS = 4,
ACPI_MEMORY_HOTPLUG_STATUS = 8,
} AcpiGPEStatusBits;
/* structs */
typedef struct ACPIPMTimer ACPIPMTimer;
typedef struct ACPIPM1EVT ACPIPM1EVT;
typedef struct ACPIPM1CNT ACPIPM1CNT;
typedef struct ACPIGPE ACPIGPE;
typedef struct ACPIREGS ACPIREGS;
typedef void (*acpi_update_sci_fn)(ACPIREGS *ar);
struct ACPIPMTimer {
QEMUTimer *timer;
MemoryRegion io;
int64_t overflow_time;
acpi_update_sci_fn update_sci;
};
struct ACPIPM1EVT {
MemoryRegion io;
uint16_t sts;
uint16_t en;
acpi_update_sci_fn update_sci;
};
struct ACPIPM1CNT {
MemoryRegion io;
uint16_t cnt;
uint8_t s4_val;
};
struct ACPIGPE {
uint8_t len;
uint8_t *sts;
uint8_t *en;
};
struct ACPIREGS {
ACPIPMTimer tmr;
ACPIGPE gpe;
struct {
ACPIPM1EVT evt;
ACPIPM1CNT cnt;
} pm1;
Notifier wakeup;
};
/* PM_TMR */
void acpi_pm_tmr_update(ACPIREGS *ar, bool enable);
void acpi_pm_tmr_calc_overflow_time(ACPIREGS *ar);
void acpi_pm_tmr_init(ACPIREGS *ar, acpi_update_sci_fn update_sci,
MemoryRegion *parent);
void acpi_pm_tmr_reset(ACPIREGS *ar);
#include "qemu/timer.h"
static inline int64_t acpi_pm_tmr_get_clock(void)
{
return muldiv64(qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL), PM_TIMER_FREQUENCY,
get_ticks_per_sec());
}
/* PM1a_EVT: piix and ich9 don't implement PM1b. */
uint16_t acpi_pm1_evt_get_sts(ACPIREGS *ar);
void acpi_pm1_evt_power_down(ACPIREGS *ar);
void acpi_pm1_evt_reset(ACPIREGS *ar);
void acpi_pm1_evt_init(ACPIREGS *ar, acpi_update_sci_fn update_sci,
MemoryRegion *parent);
/* PM1a_CNT: piix and ich9 don't implement PM1b CNT. */
void acpi_pm1_cnt_init(ACPIREGS *ar, MemoryRegion *parent,
bool disable_s3, bool disable_s4, uint8_t s4_val);
void acpi_pm1_cnt_update(ACPIREGS *ar,
bool sci_enable, bool sci_disable);
void acpi_pm1_cnt_reset(ACPIREGS *ar);
/* GPE0 */
void acpi_gpe_init(ACPIREGS *ar, uint8_t len);
void acpi_gpe_reset(ACPIREGS *ar);
void acpi_gpe_ioport_writeb(ACPIREGS *ar, uint32_t addr, uint32_t val);
uint32_t acpi_gpe_ioport_readb(ACPIREGS *ar, uint32_t addr);
void acpi_send_gpe_event(ACPIREGS *ar, qemu_irq irq,
AcpiGPEStatusBits status);
void acpi_update_sci(ACPIREGS *acpi_regs, qemu_irq irq);
/* acpi.c */
extern int acpi_enabled;
extern char unsigned *acpi_tables;
extern size_t acpi_tables_len;
uint8_t *acpi_table_first(void);
uint8_t *acpi_table_next(uint8_t *current);
unsigned acpi_table_len(void *current);
void acpi_table_add(const QemuOpts *opts, Error **errp);
void acpi_table_add_builtin(const QemuOpts *opts, Error **errp);
#endif /* !QEMU_HW_ACPI_H */
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