| 1 | #ifndef QEMU_HW_ACPI_H |
| 2 | #define QEMU_HW_ACPI_H |
| 3 | |
| 4 | /* |
| 5 | * Copyright (c) 2009 Isaku Yamahata <yamahata at valinux co jp> |
| 6 | * VA Linux Systems Japan K.K. |
| 7 | * |
| 8 | * This library is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU Lesser General Public |
| 10 | * License as published by the Free Software Foundation; either |
| 11 | * version 2.1 of the License, or (at your option) any later version. |
| 12 | * |
| 13 | * This library is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 16 | * Lesser General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU Lesser General Public |
| 19 | * License along with this library; if not, see |
| 20 | * <http://www.gnu.org/licenses/>. |
| 21 | */ |
| 22 | |
| 23 | #include "qemu/notify.h" |
| 24 | #include "system/memory.h" |
| 25 | #include "hw/acpi/acpi_dev_interface.h" |
| 26 | |
| 27 | /* |
| 28 | * current device naming scheme supports up to 256 memory devices |
| 29 | */ |
| 30 | #define ACPI_MAX_RAM_SLOTS 256 |
| 31 | |
| 32 | /* from linux include/acpi/actype.h */ |
| 33 | /* Default ACPI register widths */ |
| 34 | |
| 35 | #define ACPI_GPE_REGISTER_WIDTH 8 |
| 36 | #define ACPI_PM1_REGISTER_WIDTH 16 |
| 37 | #define ACPI_PM2_REGISTER_WIDTH 8 |
| 38 | #define ACPI_PM_TIMER_WIDTH 32 |
| 39 | |
| 40 | /* PC-style peripherals (also used by other machines). */ |
| 41 | #define ACPI_PM_PROP_S3_DISABLED "disable_s3" |
| 42 | #define ACPI_PM_PROP_S4_DISABLED "disable_s4" |
| 43 | #define ACPI_PM_PROP_S4_VAL "s4_val" |
| 44 | #define ACPI_PM_PROP_SCI_INT "sci_int" |
| 45 | #define ACPI_PM_PROP_ACPI_ENABLE_CMD "acpi_enable_cmd" |
| 46 | #define ACPI_PM_PROP_ACPI_DISABLE_CMD "acpi_disable_cmd" |
| 47 | #define ACPI_PM_PROP_PM_IO_BASE "pm_io_base" |
| 48 | #define ACPI_PM_PROP_GPE0_BLK "gpe0_blk" |
| 49 | #define ACPI_PM_PROP_GPE0_BLK_LEN "gpe0_blk_len" |
| 50 | #define ACPI_PM_PROP_ACPI_PCIHP_BRIDGE "acpi-pci-hotplug-with-bridge-support" |
| 51 | #define ACPI_PM_PROP_ACPI_PCI_ROOTHP "acpi-root-pci-hotplug" |
| 52 | |
| 53 | /* PM Timer ticks per second (HZ) */ |
| 54 | #define PM_TIMER_FREQUENCY 3579545 |
| 55 | |
| 56 | |
| 57 | /* ACPI fixed hardware registers */ |
| 58 | |
| 59 | /* from linux/drivers/acpi/acpica/aclocal.h */ |
| 60 | /* Masks used to access the bit_registers */ |
| 61 | |
| 62 | /* PM1x_STS */ |
| 63 | #define ACPI_BITMASK_TIMER_STATUS 0x0001 |
| 64 | #define ACPI_BITMASK_BUS_MASTER_STATUS 0x0010 |
| 65 | #define ACPI_BITMASK_GLOBAL_LOCK_STATUS 0x0020 |
| 66 | #define ACPI_BITMASK_POWER_BUTTON_STATUS 0x0100 |
| 67 | #define ACPI_BITMASK_SLEEP_BUTTON_STATUS 0x0200 |
| 68 | #define ACPI_BITMASK_RT_CLOCK_STATUS 0x0400 |
| 69 | #define ACPI_BITMASK_PCIEXP_WAKE_STATUS 0x4000 /* ACPI 3.0 */ |
| 70 | #define ACPI_BITMASK_WAKE_STATUS 0x8000 |
| 71 | |
| 72 | #define ACPI_BITMASK_ALL_FIXED_STATUS (\ |
| 73 | ACPI_BITMASK_TIMER_STATUS | \ |
| 74 | ACPI_BITMASK_BUS_MASTER_STATUS | \ |
| 75 | ACPI_BITMASK_GLOBAL_LOCK_STATUS | \ |
| 76 | ACPI_BITMASK_POWER_BUTTON_STATUS | \ |
| 77 | ACPI_BITMASK_SLEEP_BUTTON_STATUS | \ |
| 78 | ACPI_BITMASK_RT_CLOCK_STATUS | \ |
| 79 | ACPI_BITMASK_WAKE_STATUS) |
| 80 | |
| 81 | /* PM1x_EN */ |
| 82 | #define ACPI_BITMASK_TIMER_ENABLE 0x0001 |
| 83 | #define ACPI_BITMASK_GLOBAL_LOCK_ENABLE 0x0020 |
| 84 | #define ACPI_BITMASK_POWER_BUTTON_ENABLE 0x0100 |
| 85 | #define ACPI_BITMASK_SLEEP_BUTTON_ENABLE 0x0200 |
| 86 | #define ACPI_BITMASK_RT_CLOCK_ENABLE 0x0400 |
| 87 | #define ACPI_BITMASK_PCIEXP_WAKE_DISABLE 0x4000 /* ACPI 3.0 */ |
| 88 | |
| 89 | #define ACPI_BITMASK_PM1_COMMON_ENABLED ( \ |
| 90 | ACPI_BITMASK_RT_CLOCK_ENABLE | \ |
| 91 | ACPI_BITMASK_POWER_BUTTON_ENABLE | \ |
| 92 | ACPI_BITMASK_GLOBAL_LOCK_ENABLE | \ |
| 93 | ACPI_BITMASK_TIMER_ENABLE) |
| 94 | |
| 95 | /* PM1x_CNT */ |
| 96 | #define ACPI_BITMASK_SCI_ENABLE 0x0001 |
| 97 | #define ACPI_BITMASK_BUS_MASTER_RLD 0x0002 |
| 98 | #define ACPI_BITMASK_GLOBAL_LOCK_RELEASE 0x0004 |
| 99 | #define ACPI_BITMASK_SLEEP_TYPE 0x1C00 |
| 100 | #define ACPI_BITMASK_SLEEP_ENABLE 0x2000 |
| 101 | |
| 102 | /* PM2_CNT */ |
| 103 | #define ACPI_BITMASK_ARB_DISABLE 0x0001 |
| 104 | |
| 105 | /* structs */ |
| 106 | typedef struct ACPIPMTimer ACPIPMTimer; |
| 107 | typedef struct ACPIPM1EVT ACPIPM1EVT; |
| 108 | typedef struct ACPIPM1CNT ACPIPM1CNT; |
| 109 | typedef struct ACPIGPE ACPIGPE; |
| 110 | typedef struct ACPIREGS ACPIREGS; |
| 111 | |
| 112 | typedef void (*acpi_update_sci_fn)(ACPIREGS *ar); |
| 113 | |
| 114 | struct ACPIPMTimer { |
| 115 | QEMUTimer *timer; |
| 116 | MemoryRegion io; |
| 117 | int64_t overflow_time; |
| 118 | |
| 119 | acpi_update_sci_fn update_sci; |
| 120 | }; |
| 121 | |
| 122 | struct ACPIPM1EVT { |
| 123 | MemoryRegion io; |
| 124 | uint16_t sts; |
| 125 | uint16_t en; |
| 126 | acpi_update_sci_fn update_sci; |
| 127 | }; |
| 128 | |
| 129 | struct ACPIPM1CNT { |
| 130 | MemoryRegion io; |
| 131 | uint16_t cnt; |
| 132 | uint8_t s4_val; |
| 133 | bool acpi_only; |
| 134 | }; |
| 135 | |
| 136 | struct ACPIGPE { |
| 137 | uint8_t len; |
| 138 | |
| 139 | uint8_t *sts; |
| 140 | uint8_t *en; |
| 141 | }; |
| 142 | |
| 143 | struct ACPIREGS { |
| 144 | ACPIPMTimer tmr; |
| 145 | ACPIGPE gpe; |
| 146 | struct { |
| 147 | ACPIPM1EVT evt; |
| 148 | ACPIPM1CNT cnt; |
| 149 | } pm1; |
| 150 | Notifier wakeup; |
| 151 | }; |
| 152 | |
| 153 | /* Return whether ACPI subsystem is built in */ |
| 154 | bool acpi_builtin(void); |
| 155 | |
| 156 | /* PM_TMR */ |
| 157 | void acpi_pm_tmr_update(ACPIREGS *ar, bool enable); |
| 158 | void acpi_pm_tmr_calc_overflow_time(ACPIREGS *ar); |
| 159 | void acpi_pm_tmr_init(ACPIREGS *ar, acpi_update_sci_fn update_sci, |
| 160 | MemoryRegion *parent); |
| 161 | void acpi_pm_tmr_reset(ACPIREGS *ar); |
| 162 | |
| 163 | /* PM1a_EVT: piix and ich9 don't implement PM1b. */ |
| 164 | uint16_t acpi_pm1_evt_get_sts(ACPIREGS *ar); |
| 165 | void acpi_pm1_evt_power_down(ACPIREGS *ar); |
| 166 | void acpi_pm1_evt_reset(ACPIREGS *ar); |
| 167 | void acpi_pm1_evt_init(ACPIREGS *ar, acpi_update_sci_fn update_sci, |
| 168 | MemoryRegion *parent); |
| 169 | |
| 170 | /* PM1a_CNT: piix and ich9 don't implement PM1b CNT. */ |
| 171 | void acpi_pm1_cnt_init(ACPIREGS *ar, MemoryRegion *parent, |
| 172 | bool disable_s3, bool disable_s4, uint8_t s4_val, |
| 173 | bool acpi_only); |
| 174 | void acpi_pm1_cnt_update(ACPIREGS *ar, |
| 175 | bool sci_enable, bool sci_disable); |
| 176 | void acpi_pm1_cnt_reset(ACPIREGS *ar); |
| 177 | |
| 178 | /* GPE0 */ |
| 179 | void acpi_gpe_init(ACPIREGS *ar, uint8_t len); |
| 180 | void acpi_gpe_reset(ACPIREGS *ar); |
| 181 | |
| 182 | void acpi_gpe_ioport_writeb(ACPIREGS *ar, uint32_t addr, uint32_t val); |
| 183 | uint32_t acpi_gpe_ioport_readb(ACPIREGS *ar, uint32_t addr); |
| 184 | |
| 185 | void acpi_send_event(DeviceState *dev, AcpiEventStatusBits event); |
| 186 | void acpi_send_gpe_event(ACPIREGS *ar, qemu_irq irq, |
| 187 | AcpiEventStatusBits status); |
| 188 | |
| 189 | void acpi_update_sci(ACPIREGS *acpi_regs, qemu_irq irq); |
| 190 | |
| 191 | /* acpi.c */ |
| 192 | extern char unsigned *acpi_tables; |
| 193 | extern size_t acpi_tables_len; |
| 194 | |
| 195 | uint8_t *acpi_table_first(void); |
| 196 | uint8_t *acpi_table_next(uint8_t *current); |
| 197 | unsigned acpi_table_len(void *current); |
| 198 | void acpi_table_add(const QemuOpts *opts, Error **errp); |
| 199 | |
| 200 | typedef struct AcpiSlicOem AcpiSlicOem; |
| 201 | struct AcpiSlicOem { |
| 202 | char *id; |
| 203 | char *table_id; |
| 204 | }; |
| 205 | int acpi_get_slic_oem(AcpiSlicOem *oem); |
| 206 | |
| 207 | /* core.c */ |
| 208 | int acpi_checksum(const uint8_t *data, int len); |
| 209 | |
| 210 | #endif /* QEMU_HW_ACPI_H */ |