1 #ifndef QEMU_HW_ACPI_H 2 #define QEMU_HW_ACPI_H 3 /* 4 * Copyright (c) 2009 Isaku Yamahata <yamahata at valinux co jp> 5 * VA Linux Systems Japan K.K. 6 * 7 * This library is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Lesser General Public 9 * License as published by the Free Software Foundation; either 10 * version 2 of the License, or (at your option) any later version. 11 * 12 * This library is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Lesser General Public License for more details. 16 * 17 * You should have received a copy of the GNU Lesser General Public 18 * License along with this library; if not, see 19 * <http://www.gnu.org/licenses/>. 20 */ 21 22 #include "qapi/error.h" 23 #include "qemu/typedefs.h" 24 #include "qemu/notify.h" 25 #include "qemu/option.h" 26 #include "exec/memory.h" 27 28 /* from linux include/acpi/actype.h */ 29 /* Default ACPI register widths */ 30 31 #define ACPI_GPE_REGISTER_WIDTH 8 32 #define ACPI_PM1_REGISTER_WIDTH 16 33 #define ACPI_PM2_REGISTER_WIDTH 8 34 #define ACPI_PM_TIMER_WIDTH 32 35 36 /* PM Timer ticks per second (HZ) */ 37 #define PM_TIMER_FREQUENCY 3579545 38 39 40 /* ACPI fixed hardware registers */ 41 42 /* from linux/drivers/acpi/acpica/aclocal.h */ 43 /* Masks used to access the bit_registers */ 44 45 /* PM1x_STS */ 46 #define ACPI_BITMASK_TIMER_STATUS 0x0001 47 #define ACPI_BITMASK_BUS_MASTER_STATUS 0x0010 48 #define ACPI_BITMASK_GLOBAL_LOCK_STATUS 0x0020 49 #define ACPI_BITMASK_POWER_BUTTON_STATUS 0x0100 50 #define ACPI_BITMASK_SLEEP_BUTTON_STATUS 0x0200 51 #define ACPI_BITMASK_RT_CLOCK_STATUS 0x0400 52 #define ACPI_BITMASK_PCIEXP_WAKE_STATUS 0x4000 /* ACPI 3.0 */ 53 #define ACPI_BITMASK_WAKE_STATUS 0x8000 54 55 #define ACPI_BITMASK_ALL_FIXED_STATUS (\ 56 ACPI_BITMASK_TIMER_STATUS | \ 57 ACPI_BITMASK_BUS_MASTER_STATUS | \ 58 ACPI_BITMASK_GLOBAL_LOCK_STATUS | \ 59 ACPI_BITMASK_POWER_BUTTON_STATUS | \ 60 ACPI_BITMASK_SLEEP_BUTTON_STATUS | \ 61 ACPI_BITMASK_RT_CLOCK_STATUS | \ 62 ACPI_BITMASK_WAKE_STATUS) 63 64 /* PM1x_EN */ 65 #define ACPI_BITMASK_TIMER_ENABLE 0x0001 66 #define ACPI_BITMASK_GLOBAL_LOCK_ENABLE 0x0020 67 #define ACPI_BITMASK_POWER_BUTTON_ENABLE 0x0100 68 #define ACPI_BITMASK_SLEEP_BUTTON_ENABLE 0x0200 69 #define ACPI_BITMASK_RT_CLOCK_ENABLE 0x0400 70 #define ACPI_BITMASK_PCIEXP_WAKE_DISABLE 0x4000 /* ACPI 3.0 */ 71 72 #define ACPI_BITMASK_PM1_COMMON_ENABLED ( \ 73 ACPI_BITMASK_RT_CLOCK_ENABLE | \ 74 ACPI_BITMASK_POWER_BUTTON_ENABLE | \ 75 ACPI_BITMASK_GLOBAL_LOCK_ENABLE | \ 76 ACPI_BITMASK_TIMER_ENABLE) 77 78 /* PM1x_CNT */ 79 #define ACPI_BITMASK_SCI_ENABLE 0x0001 80 #define ACPI_BITMASK_BUS_MASTER_RLD 0x0002 81 #define ACPI_BITMASK_GLOBAL_LOCK_RELEASE 0x0004 82 #define ACPI_BITMASK_SLEEP_TYPE 0x1C00 83 #define ACPI_BITMASK_SLEEP_ENABLE 0x2000 84 85 /* PM2_CNT */ 86 #define ACPI_BITMASK_ARB_DISABLE 0x0001 87 88 /* structs */ 89 typedef struct ACPIPMTimer ACPIPMTimer; 90 typedef struct ACPIPM1EVT ACPIPM1EVT; 91 typedef struct ACPIPM1CNT ACPIPM1CNT; 92 typedef struct ACPIGPE ACPIGPE; 93 typedef struct ACPIREGS ACPIREGS; 94 95 typedef void (*acpi_update_sci_fn)(ACPIREGS *ar); 96 97 struct ACPIPMTimer { 98 QEMUTimer *timer; 99 MemoryRegion io; 100 int64_t overflow_time; 101 102 acpi_update_sci_fn update_sci; 103 }; 104 105 struct ACPIPM1EVT { 106 MemoryRegion io; 107 uint16_t sts; 108 uint16_t en; 109 acpi_update_sci_fn update_sci; 110 }; 111 112 struct ACPIPM1CNT { 113 MemoryRegion io; 114 uint16_t cnt; 115 uint8_t s4_val; 116 }; 117 118 struct ACPIGPE { 119 uint8_t len; 120 121 uint8_t *sts; 122 uint8_t *en; 123 }; 124 125 struct ACPIREGS { 126 ACPIPMTimer tmr; 127 ACPIGPE gpe; 128 struct { 129 ACPIPM1EVT evt; 130 ACPIPM1CNT cnt; 131 } pm1; 132 Notifier wakeup; 133 }; 134 135 /* PM_TMR */ 136 void acpi_pm_tmr_update(ACPIREGS *ar, bool enable); 137 void acpi_pm_tmr_calc_overflow_time(ACPIREGS *ar); 138 void acpi_pm_tmr_init(ACPIREGS *ar, acpi_update_sci_fn update_sci, 139 MemoryRegion *parent); 140 void acpi_pm_tmr_reset(ACPIREGS *ar); 141 142 #include "qemu/timer.h" 143 static inline int64_t acpi_pm_tmr_get_clock(void) 144 { 145 return muldiv64(qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL), PM_TIMER_FREQUENCY, 146 get_ticks_per_sec()); 147 } 148 149 /* PM1a_EVT: piix and ich9 don't implement PM1b. */ 150 uint16_t acpi_pm1_evt_get_sts(ACPIREGS *ar); 151 void acpi_pm1_evt_power_down(ACPIREGS *ar); 152 void acpi_pm1_evt_reset(ACPIREGS *ar); 153 void acpi_pm1_evt_init(ACPIREGS *ar, acpi_update_sci_fn update_sci, 154 MemoryRegion *parent); 155 156 /* PM1a_CNT: piix and ich9 don't implement PM1b CNT. */ 157 void acpi_pm1_cnt_init(ACPIREGS *ar, MemoryRegion *parent, uint8_t s4_val); 158 void acpi_pm1_cnt_update(ACPIREGS *ar, 159 bool sci_enable, bool sci_disable); 160 void acpi_pm1_cnt_reset(ACPIREGS *ar); 161 162 /* GPE0 */ 163 void acpi_gpe_init(ACPIREGS *ar, uint8_t len); 164 void acpi_gpe_reset(ACPIREGS *ar); 165 166 void acpi_gpe_ioport_writeb(ACPIREGS *ar, uint32_t addr, uint32_t val); 167 uint32_t acpi_gpe_ioport_readb(ACPIREGS *ar, uint32_t addr); 168 169 void acpi_update_sci(ACPIREGS *acpi_regs, qemu_irq irq); 170 171 /* acpi.c */ 172 extern int acpi_enabled; 173 extern char unsigned *acpi_tables; 174 extern size_t acpi_tables_len; 175 176 uint8_t *acpi_table_first(void); 177 uint8_t *acpi_table_next(uint8_t *current); 178 unsigned acpi_table_len(void *current); 179 void acpi_table_add(const QemuOpts *opts, Error **errp); 180 void acpi_table_add_builtin(const QemuOpts *opts, Error **errp); 181 182 #endif /* !QEMU_HW_ACPI_H */ 183