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Diffstat (limited to 'include/hw/acpi/acpi.h')
| -rw-r--r-- | include/hw/acpi/acpi.h | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/include/hw/acpi/acpi.h b/include/hw/acpi/acpi.h new file mode 100644 index 0000000000..e18ef28fd3 --- /dev/null +++ b/include/hw/acpi/acpi.h @@ -0,0 +1,157 @@ +#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; + 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_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_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, 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); + +#endif /* !QEMU_HW_ACPI_H */ |