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 "exec/memory.h" 25 #include "hw/irq.h" 26 #include "hw/acpi/acpi_dev_interface.h" 27 28 /* 29 * current device naming scheme supports up to 256 memory devices 30 */ 31 #define ACPI_MAX_RAM_SLOTS 256 32 33 /* from linux include/acpi/actype.h */ 34 /* Default ACPI register widths */ 35 36 #define ACPI_GPE_REGISTER_WIDTH 8 37 #define ACPI_PM1_REGISTER_WIDTH 16 38 #define ACPI_PM2_REGISTER_WIDTH 8 39 #define ACPI_PM_TIMER_WIDTH 32 40 41 /* PC-style peripherals (also used by other machines). */ 42 #define ACPI_PM_PROP_S3_DISABLED "disable_s3" 43 #define ACPI_PM_PROP_S4_DISABLED "disable_s4" 44 #define ACPI_PM_PROP_S4_VAL "s4_val" 45 #define ACPI_PM_PROP_SCI_INT "sci_int" 46 #define ACPI_PM_PROP_ACPI_ENABLE_CMD "acpi_enable_cmd" 47 #define ACPI_PM_PROP_ACPI_DISABLE_CMD "acpi_disable_cmd" 48 #define ACPI_PM_PROP_PM_IO_BASE "pm_io_base" 49 #define ACPI_PM_PROP_GPE0_BLK "gpe0_blk" 50 #define ACPI_PM_PROP_GPE0_BLK_LEN "gpe0_blk_len" 51 52 /* PM Timer ticks per second (HZ) */ 53 #define PM_TIMER_FREQUENCY 3579545 54 55 56 /* ACPI fixed hardware registers */ 57 58 /* from linux/drivers/acpi/acpica/aclocal.h */ 59 /* Masks used to access the bit_registers */ 60 61 /* PM1x_STS */ 62 #define ACPI_BITMASK_TIMER_STATUS 0x0001 63 #define ACPI_BITMASK_BUS_MASTER_STATUS 0x0010 64 #define ACPI_BITMASK_GLOBAL_LOCK_STATUS 0x0020 65 #define ACPI_BITMASK_POWER_BUTTON_STATUS 0x0100 66 #define ACPI_BITMASK_SLEEP_BUTTON_STATUS 0x0200 67 #define ACPI_BITMASK_RT_CLOCK_STATUS 0x0400 68 #define ACPI_BITMASK_PCIEXP_WAKE_STATUS 0x4000 /* ACPI 3.0 */ 69 #define ACPI_BITMASK_WAKE_STATUS 0x8000 70 71 #define ACPI_BITMASK_ALL_FIXED_STATUS (\ 72 ACPI_BITMASK_TIMER_STATUS | \ 73 ACPI_BITMASK_BUS_MASTER_STATUS | \ 74 ACPI_BITMASK_GLOBAL_LOCK_STATUS | \ 75 ACPI_BITMASK_POWER_BUTTON_STATUS | \ 76 ACPI_BITMASK_SLEEP_BUTTON_STATUS | \ 77 ACPI_BITMASK_RT_CLOCK_STATUS | \ 78 ACPI_BITMASK_WAKE_STATUS) 79 80 /* PM1x_EN */ 81 #define ACPI_BITMASK_TIMER_ENABLE 0x0001 82 #define ACPI_BITMASK_GLOBAL_LOCK_ENABLE 0x0020 83 #define ACPI_BITMASK_POWER_BUTTON_ENABLE 0x0100 84 #define ACPI_BITMASK_SLEEP_BUTTON_ENABLE 0x0200 85 #define ACPI_BITMASK_RT_CLOCK_ENABLE 0x0400 86 #define ACPI_BITMASK_PCIEXP_WAKE_DISABLE 0x4000 /* ACPI 3.0 */ 87 88 #define ACPI_BITMASK_PM1_COMMON_ENABLED ( \ 89 ACPI_BITMASK_RT_CLOCK_ENABLE | \ 90 ACPI_BITMASK_POWER_BUTTON_ENABLE | \ 91 ACPI_BITMASK_GLOBAL_LOCK_ENABLE | \ 92 ACPI_BITMASK_TIMER_ENABLE) 93 94 /* PM1x_CNT */ 95 #define ACPI_BITMASK_SCI_ENABLE 0x0001 96 #define ACPI_BITMASK_BUS_MASTER_RLD 0x0002 97 #define ACPI_BITMASK_GLOBAL_LOCK_RELEASE 0x0004 98 #define ACPI_BITMASK_SLEEP_TYPE 0x1C00 99 #define ACPI_BITMASK_SLEEP_ENABLE 0x2000 100 101 /* PM2_CNT */ 102 #define ACPI_BITMASK_ARB_DISABLE 0x0001 103 104 /* structs */ 105 typedef struct ACPIPMTimer ACPIPMTimer; 106 typedef struct ACPIPM1EVT ACPIPM1EVT; 107 typedef struct ACPIPM1CNT ACPIPM1CNT; 108 typedef struct ACPIGPE ACPIGPE; 109 typedef struct ACPIREGS ACPIREGS; 110 111 typedef void (*acpi_update_sci_fn)(ACPIREGS *ar); 112 113 struct ACPIPMTimer { 114 QEMUTimer *timer; 115 MemoryRegion io; 116 int64_t overflow_time; 117 118 acpi_update_sci_fn update_sci; 119 }; 120 121 struct ACPIPM1EVT { 122 MemoryRegion io; 123 uint16_t sts; 124 uint16_t en; 125 acpi_update_sci_fn update_sci; 126 }; 127 128 struct ACPIPM1CNT { 129 MemoryRegion io; 130 uint16_t cnt; 131 uint8_t s4_val; 132 }; 133 134 struct ACPIGPE { 135 uint8_t len; 136 137 uint8_t *sts; 138 uint8_t *en; 139 }; 140 141 struct ACPIREGS { 142 ACPIPMTimer tmr; 143 ACPIGPE gpe; 144 struct { 145 ACPIPM1EVT evt; 146 ACPIPM1CNT cnt; 147 } pm1; 148 Notifier wakeup; 149 }; 150 151 /* PM_TMR */ 152 void acpi_pm_tmr_update(ACPIREGS *ar, bool enable); 153 void acpi_pm_tmr_calc_overflow_time(ACPIREGS *ar); 154 void acpi_pm_tmr_init(ACPIREGS *ar, acpi_update_sci_fn update_sci, 155 MemoryRegion *parent); 156 void acpi_pm_tmr_reset(ACPIREGS *ar); 157 158 /* PM1a_EVT: piix and ich9 don't implement PM1b. */ 159 uint16_t acpi_pm1_evt_get_sts(ACPIREGS *ar); 160 void acpi_pm1_evt_power_down(ACPIREGS *ar); 161 void acpi_pm1_evt_reset(ACPIREGS *ar); 162 void acpi_pm1_evt_init(ACPIREGS *ar, acpi_update_sci_fn update_sci, 163 MemoryRegion *parent); 164 165 /* PM1a_CNT: piix and ich9 don't implement PM1b CNT. */ 166 void acpi_pm1_cnt_init(ACPIREGS *ar, MemoryRegion *parent, 167 bool disable_s3, bool disable_s4, uint8_t s4_val); 168 void acpi_pm1_cnt_update(ACPIREGS *ar, 169 bool sci_enable, bool sci_disable); 170 void acpi_pm1_cnt_reset(ACPIREGS *ar); 171 172 /* GPE0 */ 173 void acpi_gpe_init(ACPIREGS *ar, uint8_t len); 174 void acpi_gpe_reset(ACPIREGS *ar); 175 176 void acpi_gpe_ioport_writeb(ACPIREGS *ar, uint32_t addr, uint32_t val); 177 uint32_t acpi_gpe_ioport_readb(ACPIREGS *ar, uint32_t addr); 178 179 void acpi_send_gpe_event(ACPIREGS *ar, qemu_irq irq, 180 AcpiEventStatusBits status); 181 182 void acpi_update_sci(ACPIREGS *acpi_regs, qemu_irq irq); 183 184 /* acpi.c */ 185 extern int acpi_enabled; 186 extern char unsigned *acpi_tables; 187 extern size_t acpi_tables_len; 188 189 uint8_t *acpi_table_first(void); 190 uint8_t *acpi_table_next(uint8_t *current); 191 unsigned acpi_table_len(void *current); 192 void acpi_table_add(const QemuOpts *opts, Error **errp); 193 void acpi_table_add_builtin(const QemuOpts *opts, Error **errp); 194 195 typedef struct AcpiSlicOem AcpiSlicOem; 196 struct AcpiSlicOem { 197 char *id; 198 char *table_id; 199 }; 200 int acpi_get_slic_oem(AcpiSlicOem *oem); 201 202 #endif /* QEMU_HW_ACPI_H */ 203