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 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 "qemu/option.h" 25 #include "exec/memory.h" 26 #include "hw/irq.h" 27 #include "hw/acpi/acpi_dev_interface.h" 28 29 /* 30 * current device naming scheme supports up to 256 memory devices 31 */ 32 #define ACPI_MAX_RAM_SLOTS 256 33 34 /* from linux include/acpi/actype.h */ 35 /* Default ACPI register widths */ 36 37 #define ACPI_GPE_REGISTER_WIDTH 8 38 #define ACPI_PM1_REGISTER_WIDTH 16 39 #define ACPI_PM2_REGISTER_WIDTH 8 40 #define ACPI_PM_TIMER_WIDTH 32 41 42 /* PC-style peripherals (also used by other machines). */ 43 #define ACPI_PM_PROP_S3_DISABLED "disable_s3" 44 #define ACPI_PM_PROP_S4_DISABLED "disable_s4" 45 #define ACPI_PM_PROP_S4_VAL "s4_val" 46 #define ACPI_PM_PROP_SCI_INT "sci_int" 47 #define ACPI_PM_PROP_ACPI_ENABLE_CMD "acpi_enable_cmd" 48 #define ACPI_PM_PROP_ACPI_DISABLE_CMD "acpi_disable_cmd" 49 #define ACPI_PM_PROP_PM_IO_BASE "pm_io_base" 50 #define ACPI_PM_PROP_GPE0_BLK "gpe0_blk" 51 #define ACPI_PM_PROP_GPE0_BLK_LEN "gpe0_blk_len" 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 }; 134 135 struct ACPIGPE { 136 uint8_t len; 137 138 uint8_t *sts; 139 uint8_t *en; 140 }; 141 142 struct ACPIREGS { 143 ACPIPMTimer tmr; 144 ACPIGPE gpe; 145 struct { 146 ACPIPM1EVT evt; 147 ACPIPM1CNT cnt; 148 } pm1; 149 Notifier wakeup; 150 }; 151 152 /* PM_TMR */ 153 void acpi_pm_tmr_update(ACPIREGS *ar, bool enable); 154 void acpi_pm_tmr_calc_overflow_time(ACPIREGS *ar); 155 void acpi_pm_tmr_init(ACPIREGS *ar, acpi_update_sci_fn update_sci, 156 MemoryRegion *parent); 157 void acpi_pm_tmr_reset(ACPIREGS *ar); 158 159 /* PM1a_EVT: piix and ich9 don't implement PM1b. */ 160 uint16_t acpi_pm1_evt_get_sts(ACPIREGS *ar); 161 void acpi_pm1_evt_power_down(ACPIREGS *ar); 162 void acpi_pm1_evt_reset(ACPIREGS *ar); 163 void acpi_pm1_evt_init(ACPIREGS *ar, acpi_update_sci_fn update_sci, 164 MemoryRegion *parent); 165 166 /* PM1a_CNT: piix and ich9 don't implement PM1b CNT. */ 167 void acpi_pm1_cnt_init(ACPIREGS *ar, MemoryRegion *parent, 168 bool disable_s3, bool disable_s4, uint8_t s4_val); 169 void acpi_pm1_cnt_update(ACPIREGS *ar, 170 bool sci_enable, bool sci_disable); 171 void acpi_pm1_cnt_reset(ACPIREGS *ar); 172 173 /* GPE0 */ 174 void acpi_gpe_init(ACPIREGS *ar, uint8_t len); 175 void acpi_gpe_reset(ACPIREGS *ar); 176 177 void acpi_gpe_ioport_writeb(ACPIREGS *ar, uint32_t addr, uint32_t val); 178 uint32_t acpi_gpe_ioport_readb(ACPIREGS *ar, uint32_t addr); 179 180 void acpi_send_gpe_event(ACPIREGS *ar, qemu_irq irq, 181 AcpiEventStatusBits status); 182 183 void acpi_update_sci(ACPIREGS *acpi_regs, qemu_irq irq); 184 185 /* acpi.c */ 186 extern int acpi_enabled; 187 extern char unsigned *acpi_tables; 188 extern size_t acpi_tables_len; 189 190 uint8_t *acpi_table_first(void); 191 uint8_t *acpi_table_next(uint8_t *current); 192 unsigned acpi_table_len(void *current); 193 void acpi_table_add(const QemuOpts *opts, Error **errp); 194 void acpi_table_add_builtin(const QemuOpts *opts, Error **errp); 195 196 typedef struct AcpiSlicOem AcpiSlicOem; 197 struct AcpiSlicOem { 198 char *id; 199 char *table_id; 200 }; 201 int acpi_get_slic_oem(AcpiSlicOem *oem); 202 203 #endif /* QEMU_HW_ACPI_H */ 204