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