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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/>.
*/
/* 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
/* 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;
int64_t overflow_time;
acpi_update_sci_fn update_sci;
};
struct ACPIPM1EVT {
uint16_t sts;
uint16_t en;
};
struct ACPIPM1CNT {
uint16_t cnt;
};
struct ACPIGPE {
uint32_t blk;
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);
uint32_t acpi_pm_tmr_get(ACPIREGS *ar);
void acpi_pm_tmr_init(ACPIREGS *ar, acpi_update_sci_fn update_sci);
void acpi_pm_tmr_reset(ACPIREGS *ar);
#include "qemu-timer.h"
static inline int64_t acpi_pm_tmr_get_clock(void)
{
return muldiv64(qemu_get_clock_ns(vm_clock), 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_write_sts(ACPIREGS *ar, uint16_t val);
void acpi_pm1_evt_write_en(ACPIREGS *ar, uint16_t val);
void acpi_pm1_evt_power_down(ACPIREGS *ar);
void acpi_pm1_evt_reset(ACPIREGS *ar);
/* PM1a_CNT: piix and ich9 don't implement PM1b CNT. */
void acpi_pm1_cnt_init(ACPIREGS *ar);
void acpi_pm1_cnt_write(ACPIREGS *ar, uint16_t val, char s4);
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_blk(ACPIREGS *ar, uint32_t blk);
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);
#endif /* !QEMU_HW_ACPI_H */
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