| [2] | 1 | /* |
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| 2 | * acpi.h - ACPI Interface |
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| 3 | * |
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| 4 | * Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com> |
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| 5 | * |
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| 6 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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| 7 | * |
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| 8 | * This program is free software; you can redistribute it and/or modify |
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| 9 | * it under the terms of the GNU General Public License as published by |
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| 10 | * the Free Software Foundation; either version 2 of the License, or |
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| 11 | * (at your option) any later version. |
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| 12 | * |
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| 13 | * This program is distributed in the hope that it will be useful, |
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| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 16 | * GNU General Public License for more details. |
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| 17 | * |
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| 18 | * You should have received a copy of the GNU General Public License |
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| 19 | * along with this program; if not, write to the Free Software |
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| 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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| 21 | * |
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| 22 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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| 23 | */ |
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| 24 | |
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| 25 | #ifndef _LINUX_ACPI_H |
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| 26 | #define _LINUX_ACPI_H |
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| 27 | |
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| 28 | #ifndef _LINUX |
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| 29 | #define _LINUX |
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| 30 | #endif |
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| 31 | |
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| 32 | #include <asm/types.h> |
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| 33 | #include <acpi/acpi.h> |
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| 34 | #include <acpi/acpi_bus.h> |
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| 35 | #include <acpi/acpi_drivers.h> |
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| 36 | |
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| 37 | |
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| 38 | #ifdef CONFIG_ACPI_BOOT |
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| 39 | |
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| 40 | enum acpi_irq_model_id { |
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| 41 | ACPI_IRQ_MODEL_PIC = 0, |
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| 42 | ACPI_IRQ_MODEL_IOAPIC, |
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| 43 | ACPI_IRQ_MODEL_IOSAPIC, |
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| 44 | ACPI_IRQ_MODEL_COUNT |
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| 45 | }; |
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| 46 | |
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| 47 | extern enum acpi_irq_model_id acpi_irq_model; |
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| 48 | |
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| 49 | |
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| 50 | /* Root System Description Pointer (RSDP) */ |
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| 51 | |
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| 52 | struct acpi_table_rsdp { |
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| 53 | char signature[8]; |
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| 54 | __u8 checksum; |
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| 55 | char oem_id[6]; |
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| 56 | __u8 revision; |
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| 57 | __u32 rsdt_address; |
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| 58 | } __attribute__ ((packed)); |
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| 59 | |
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| 60 | struct acpi20_table_rsdp { |
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| 61 | char signature[8]; |
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| 62 | __u8 checksum; |
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| 63 | char oem_id[6]; |
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| 64 | __u8 revision; |
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| 65 | __u32 rsdt_address; |
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| 66 | __u32 length; |
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| 67 | __u64 xsdt_address; |
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| 68 | __u8 ext_checksum; |
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| 69 | __u8 reserved[3]; |
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| 70 | } __attribute__ ((packed)); |
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| 71 | |
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| 72 | typedef struct { |
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| 73 | __u8 type; |
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| 74 | __u8 length; |
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| 75 | } __attribute__ ((packed)) acpi_table_entry_header; |
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| 76 | |
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| 77 | /* Root System Description Table (RSDT) */ |
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| 78 | |
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| 79 | struct acpi_table_rsdt { |
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| 80 | struct acpi_table_header header; |
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| 81 | __u32 entry[8]; |
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| 82 | } __attribute__ ((packed)); |
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| 83 | |
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| 84 | /* Extended System Description Table (XSDT) */ |
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| 85 | |
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| 86 | struct acpi_table_xsdt { |
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| 87 | struct acpi_table_header header; |
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| 88 | __u64 entry[1]; |
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| 89 | } __attribute__ ((packed)); |
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| 90 | |
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| 91 | /* Fixed ACPI Description Table (FADT) */ |
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| 92 | |
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| 93 | struct acpi_table_fadt { |
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| 94 | struct acpi_table_header header; |
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| 95 | __u32 facs_addr; |
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| 96 | __u32 dsdt_addr; |
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| 97 | /* ... */ |
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| 98 | } __attribute__ ((packed)); |
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| 99 | |
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| 100 | /* Multiple APIC Description Table (MADT) */ |
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| 101 | |
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| 102 | struct acpi_table_madt { |
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| 103 | struct acpi_table_header header; |
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| 104 | __u32 lapic_address; |
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| 105 | struct { |
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| 106 | __u32 pcat_compat:1; |
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| 107 | __u32 reserved:31; |
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| 108 | } flags; |
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| 109 | } __attribute__ ((packed)); |
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| 110 | |
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| 111 | enum acpi_madt_entry_id { |
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| 112 | ACPI_MADT_LAPIC = 0, |
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| 113 | ACPI_MADT_IOAPIC, |
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| 114 | ACPI_MADT_INT_SRC_OVR, |
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| 115 | ACPI_MADT_NMI_SRC, |
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| 116 | ACPI_MADT_LAPIC_NMI, |
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| 117 | ACPI_MADT_LAPIC_ADDR_OVR, |
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| 118 | ACPI_MADT_IOSAPIC, |
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| 119 | ACPI_MADT_LSAPIC, |
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| 120 | ACPI_MADT_PLAT_INT_SRC, |
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| 121 | ACPI_MADT_ENTRY_COUNT |
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| 122 | }; |
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| 123 | |
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| 124 | typedef struct { |
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| 125 | __u16 polarity:2; |
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| 126 | __u16 trigger:2; |
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| 127 | __u16 reserved:12; |
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| 128 | } __attribute__ ((packed)) acpi_interrupt_flags; |
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| 129 | |
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| 130 | struct acpi_table_lapic { |
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| 131 | acpi_table_entry_header header; |
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| 132 | __u8 acpi_id; |
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| 133 | __u8 id; |
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| 134 | struct { |
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| 135 | __u32 enabled:1; |
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| 136 | __u32 reserved:31; |
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| 137 | } flags; |
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| 138 | } __attribute__ ((packed)); |
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| 139 | |
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| 140 | struct acpi_table_ioapic { |
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| 141 | acpi_table_entry_header header; |
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| 142 | __u8 id; |
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| 143 | __u8 reserved; |
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| 144 | __u32 address; |
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| 145 | __u32 global_irq_base; |
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| 146 | } __attribute__ ((packed)); |
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| 147 | |
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| 148 | struct acpi_table_int_src_ovr { |
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| 149 | acpi_table_entry_header header; |
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| 150 | __u8 bus; |
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| 151 | __u8 bus_irq; |
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| 152 | __u32 global_irq; |
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| 153 | acpi_interrupt_flags flags; |
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| 154 | } __attribute__ ((packed)); |
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| 155 | |
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| 156 | struct acpi_table_nmi_src { |
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| 157 | acpi_table_entry_header header; |
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| 158 | acpi_interrupt_flags flags; |
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| 159 | __u32 global_irq; |
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| 160 | } __attribute__ ((packed)); |
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| 161 | |
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| 162 | struct acpi_table_lapic_nmi { |
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| 163 | acpi_table_entry_header header; |
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| 164 | __u8 acpi_id; |
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| 165 | acpi_interrupt_flags flags; |
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| 166 | __u8 lint; |
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| 167 | } __attribute__ ((packed)); |
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| 168 | |
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| 169 | struct acpi_table_lapic_addr_ovr { |
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| 170 | acpi_table_entry_header header; |
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| 171 | __u8 reserved[2]; |
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| 172 | __u64 address; |
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| 173 | } __attribute__ ((packed)); |
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| 174 | |
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| 175 | struct acpi_table_iosapic { |
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| 176 | acpi_table_entry_header header; |
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| 177 | __u8 id; |
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| 178 | __u8 reserved; |
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| 179 | __u32 global_irq_base; |
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| 180 | __u64 address; |
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| 181 | } __attribute__ ((packed)); |
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| 182 | |
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| 183 | struct acpi_table_lsapic { |
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| 184 | acpi_table_entry_header header; |
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| 185 | __u8 acpi_id; |
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| 186 | __u8 id; |
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| 187 | __u8 eid; |
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| 188 | __u8 reserved[3]; |
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| 189 | struct { |
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| 190 | __u32 enabled:1; |
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| 191 | __u32 reserved:31; |
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| 192 | } flags; |
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| 193 | } __attribute__ ((packed)); |
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| 194 | |
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| 195 | struct acpi_table_plat_int_src { |
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| 196 | acpi_table_entry_header header; |
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| 197 | acpi_interrupt_flags flags; |
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| 198 | __u8 type; /* See acpi_interrupt_type */ |
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| 199 | __u8 id; |
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| 200 | __u8 eid; |
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| 201 | __u8 iosapic_vector; |
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| 202 | __u32 global_irq; |
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| 203 | __u32 reserved; |
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| 204 | } __attribute__ ((packed)); |
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| 205 | |
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| 206 | enum acpi_interrupt_id { |
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| 207 | ACPI_INTERRUPT_PMI = 1, |
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| 208 | ACPI_INTERRUPT_INIT, |
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| 209 | ACPI_INTERRUPT_CPEI, |
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| 210 | ACPI_INTERRUPT_COUNT |
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| 211 | }; |
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| 212 | |
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| 213 | #define ACPI_SPACE_MEM 0 |
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| 214 | |
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| 215 | struct acpi_gen_regaddr { |
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| 216 | __u8 space_id; |
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| 217 | __u8 bit_width; |
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| 218 | __u8 bit_offset; |
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| 219 | __u8 resv; |
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| 220 | __u32 addrl; |
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| 221 | __u32 addrh; |
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| 222 | } __attribute__ ((packed)); |
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| 223 | |
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| 224 | struct acpi_table_hpet { |
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| 225 | struct acpi_table_header header; |
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| 226 | __u32 id; |
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| 227 | struct acpi_gen_regaddr addr; |
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| 228 | __u8 number; |
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| 229 | __u16 min_tick; |
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| 230 | __u8 page_protect; |
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| 231 | } __attribute__ ((packed)); |
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| 232 | |
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| 233 | /* |
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| 234 | * Simple Boot Flags |
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| 235 | * http://www.microsoft.com/whdc/hwdev/resources/specs/simp_bios.mspx |
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| 236 | */ |
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| 237 | struct acpi_table_sbf |
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| 238 | { |
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| 239 | __u8 sbf_signature[4]; |
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| 240 | __u32 sbf_len; |
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| 241 | __u8 sbf_revision; |
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| 242 | __u8 sbf_csum; |
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| 243 | __u8 sbf_oemid[6]; |
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| 244 | __u8 sbf_oemtable[8]; |
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| 245 | __u8 sbf_revdata[4]; |
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| 246 | __u8 sbf_creator[4]; |
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| 247 | __u8 sbf_crearev[4]; |
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| 248 | __u8 sbf_cmos; |
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| 249 | __u8 sbf_spare[3]; |
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| 250 | } __attribute__ ((packed)); |
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| 251 | |
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| 252 | /* |
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| 253 | * System Resource Affinity Table (SRAT) |
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| 254 | * http://www.microsoft.com/whdc/hwdev/platform/proc/SRAT.mspx |
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| 255 | */ |
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| 256 | |
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| 257 | struct acpi_table_srat { |
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| 258 | struct acpi_table_header header; |
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| 259 | __u32 table_revision; |
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| 260 | __u64 reserved; |
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| 261 | } __attribute__ ((packed)); |
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| 262 | |
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| 263 | enum acpi_srat_entry_id { |
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| 264 | ACPI_SRAT_PROCESSOR_AFFINITY = 0, |
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| 265 | ACPI_SRAT_MEMORY_AFFINITY, |
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| 266 | ACPI_SRAT_ENTRY_COUNT |
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| 267 | }; |
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| 268 | |
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| 269 | struct acpi_table_processor_affinity { |
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| 270 | acpi_table_entry_header header; |
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| 271 | __u8 proximity_domain; |
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| 272 | __u8 apic_id; |
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| 273 | struct { |
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| 274 | __u32 enabled:1; |
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| 275 | __u32 reserved:31; |
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| 276 | } flags; |
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| 277 | __u8 lsapic_eid; |
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| 278 | __u8 reserved[7]; |
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| 279 | } __attribute__ ((packed)); |
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| 280 | |
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| 281 | struct acpi_table_memory_affinity { |
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| 282 | acpi_table_entry_header header; |
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| 283 | __u8 proximity_domain; |
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| 284 | __u8 reserved1[5]; |
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| 285 | __u32 base_addr_lo; |
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| 286 | __u32 base_addr_hi; |
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| 287 | __u32 length_lo; |
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| 288 | __u32 length_hi; |
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| 289 | __u32 memory_type; /* See acpi_address_range_id */ |
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| 290 | struct { |
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| 291 | __u32 enabled:1; |
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| 292 | __u32 hot_pluggable:1; |
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| 293 | __u32 reserved:30; |
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| 294 | } flags; |
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| 295 | __u64 reserved2; |
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| 296 | } __attribute__ ((packed)); |
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| 297 | |
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| 298 | enum acpi_address_range_id { |
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| 299 | ACPI_ADDRESS_RANGE_MEMORY = 1, |
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| 300 | ACPI_ADDRESS_RANGE_RESERVED = 2, |
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| 301 | ACPI_ADDRESS_RANGE_ACPI = 3, |
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| 302 | ACPI_ADDRESS_RANGE_NVS = 4, |
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| 303 | ACPI_ADDRESS_RANGE_COUNT |
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| 304 | }; |
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| 305 | |
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| 306 | /* |
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| 307 | * System Locality Information Table (SLIT) |
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| 308 | * see http://devresource.hp.com/devresource/docs/techpapers/ia64/slit.pdf |
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| 309 | */ |
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| 310 | |
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| 311 | struct acpi_table_slit { |
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| 312 | struct acpi_table_header header; |
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| 313 | __u64 localities; |
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| 314 | __u8 entry[1]; /* real size = localities^2 */ |
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| 315 | } __attribute__ ((packed)); |
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| 316 | |
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| 317 | /* Smart Battery Description Table (SBST) */ |
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| 318 | |
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| 319 | struct acpi_table_sbst { |
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| 320 | struct acpi_table_header header; |
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| 321 | __u32 warning; /* Warn user */ |
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| 322 | __u32 low; /* Critical sleep */ |
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| 323 | __u32 critical; /* Critical shutdown */ |
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| 324 | } __attribute__ ((packed)); |
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| 325 | |
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| 326 | /* Embedded Controller Boot Resources Table (ECDT) */ |
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| 327 | |
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| 328 | struct acpi_table_ecdt { |
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| 329 | struct acpi_table_header header; |
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| 330 | struct acpi_generic_address ec_control; |
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| 331 | struct acpi_generic_address ec_data; |
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| 332 | __u32 uid; |
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| 333 | __u8 gpe_bit; |
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| 334 | char ec_id[0]; |
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| 335 | } __attribute__ ((packed)); |
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| 336 | |
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| 337 | /* PCI MMCONFIG */ |
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| 338 | |
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| 339 | struct acpi_table_mcfg { |
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| 340 | struct acpi_table_header header; |
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| 341 | __u8 reserved[8]; |
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| 342 | __u32 base_address; |
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| 343 | __u32 base_reserved; |
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| 344 | } __attribute__ ((packed)); |
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| 345 | |
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| 346 | /* Table Handlers */ |
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| 347 | |
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| 348 | enum acpi_table_id { |
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| 349 | ACPI_TABLE_UNKNOWN = 0, |
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| 350 | ACPI_APIC, |
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| 351 | ACPI_BOOT, |
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| 352 | ACPI_DBGP, |
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| 353 | ACPI_DSDT, |
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| 354 | ACPI_ECDT, |
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| 355 | ACPI_ETDT, |
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| 356 | ACPI_FADT, |
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| 357 | ACPI_FACS, |
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| 358 | ACPI_OEMX, |
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| 359 | ACPI_PSDT, |
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| 360 | ACPI_SBST, |
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| 361 | ACPI_SLIT, |
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| 362 | ACPI_SPCR, |
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| 363 | ACPI_SRAT, |
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| 364 | ACPI_SSDT, |
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| 365 | ACPI_SPMI, |
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| 366 | ACPI_HPET, |
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| 367 | ACPI_MCFG, |
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| 368 | ACPI_TABLE_COUNT |
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| 369 | }; |
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| 370 | |
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| 371 | typedef int (*acpi_table_handler) (unsigned long phys_addr, unsigned long size); |
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| 372 | |
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| 373 | extern acpi_table_handler acpi_table_ops[ACPI_TABLE_COUNT]; |
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| 374 | |
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| 375 | typedef int (*acpi_madt_entry_handler) (acpi_table_entry_header *header, const unsigned long end); |
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| 376 | |
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| 377 | char * __acpi_map_table (unsigned long phys_addr, unsigned long size); |
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| 378 | unsigned long acpi_find_rsdp (void); |
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| 379 | int acpi_boot_init (void); |
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| 380 | int acpi_boot_table_init (void); |
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| 381 | int acpi_numa_init (void); |
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| 382 | |
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| 383 | int acpi_table_init (void); |
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| 384 | int acpi_table_parse (enum acpi_table_id id, acpi_table_handler handler); |
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| 385 | int acpi_get_table_header_early (enum acpi_table_id id, struct acpi_table_header **header); |
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| 386 | int acpi_table_parse_madt (enum acpi_madt_entry_id id, acpi_madt_entry_handler handler, unsigned int max_entries); |
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| 387 | int acpi_table_parse_srat (enum acpi_srat_entry_id id, acpi_madt_entry_handler handler, unsigned int max_entries); |
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| 388 | void acpi_table_print (struct acpi_table_header *header, unsigned long phys_addr); |
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| 389 | void acpi_table_print_madt_entry (acpi_table_entry_header *madt); |
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| 390 | void acpi_table_print_srat_entry (acpi_table_entry_header *srat); |
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| 391 | |
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| 392 | /* the following four functions are architecture-dependent */ |
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| 393 | void acpi_numa_slit_init (struct acpi_table_slit *slit); |
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| 394 | void acpi_numa_processor_affinity_init (struct acpi_table_processor_affinity *pa); |
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| 395 | void acpi_numa_memory_affinity_init (struct acpi_table_memory_affinity *ma); |
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| 396 | void acpi_numa_arch_fixup(void); |
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| 397 | |
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| 398 | #ifdef CONFIG_ACPI_HOTPLUG_CPU |
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| 399 | /* Arch dependent functions for cpu hotplug support */ |
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| 400 | int acpi_map_lsapic(acpi_handle handle, int *pcpu); |
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| 401 | int acpi_unmap_lsapic(int cpu); |
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| 402 | #endif /* CONFIG_ACPI_HOTPLUG_CPU */ |
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| 403 | |
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| 404 | extern int acpi_mp_config; |
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| 405 | |
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| 406 | extern __u32 pci_mmcfg_base_addr; |
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| 407 | |
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| 408 | extern int sbf_port ; |
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| 409 | |
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| 410 | #else /*!CONFIG_ACPI_BOOT*/ |
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| 411 | |
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| 412 | #define acpi_mp_config 0 |
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| 413 | |
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| 414 | static inline int acpi_boot_init(void) |
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| 415 | { |
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| 416 | return 0; |
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| 417 | } |
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| 418 | |
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| 419 | static inline int acpi_boot_table_init(void) |
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| 420 | { |
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| 421 | return 0; |
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| 422 | } |
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| 423 | |
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| 424 | #endif /*!CONFIG_ACPI_BOOT*/ |
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| 425 | |
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| 426 | unsigned int acpi_register_gsi (__u32 gsi, int edge_level, int active_high_low); |
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| 427 | int acpi_gsi_to_irq (__u32 gsi, unsigned int *irq); |
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| 428 | |
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| 429 | /* |
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| 430 | * This function undoes the effect of one call to acpi_register_gsi(). |
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| 431 | * If this matches the last registration, any IRQ resources for gsi |
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| 432 | * are freed. |
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| 433 | */ |
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| 434 | #ifdef CONFIG_ACPI_DEALLOCATE_IRQ |
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| 435 | void acpi_unregister_gsi (__u32 gsi); |
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| 436 | #endif |
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| 437 | |
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| 438 | #ifdef CONFIG_ACPI_PCI |
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| 439 | |
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| 440 | struct acpi_prt_entry { |
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| 441 | struct list_head node; |
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| 442 | struct acpi_pci_id id; |
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| 443 | __u8 pin; |
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| 444 | struct { |
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| 445 | acpi_handle handle; |
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| 446 | __u32 index; |
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| 447 | } link; |
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| 448 | __u32 irq; |
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| 449 | }; |
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| 450 | |
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| 451 | struct acpi_prt_list { |
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| 452 | int count; |
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| 453 | struct list_head entries; |
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| 454 | }; |
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| 455 | |
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| 456 | struct pci_dev; |
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| 457 | |
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| 458 | int acpi_pci_irq_enable (struct pci_dev *dev); |
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| 459 | void acpi_penalize_isa_irq(int irq); |
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| 460 | |
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| 461 | #ifdef CONFIG_ACPI_DEALLOCATE_IRQ |
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| 462 | void acpi_pci_irq_disable (struct pci_dev *dev); |
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| 463 | #endif |
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| 464 | |
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| 465 | struct acpi_pci_driver { |
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| 466 | struct acpi_pci_driver *next; |
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| 467 | int (*add)(acpi_handle handle); |
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| 468 | void (*remove)(acpi_handle handle); |
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| 469 | }; |
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| 470 | |
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| 471 | int acpi_pci_register_driver(struct acpi_pci_driver *driver); |
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| 472 | void acpi_pci_unregister_driver(struct acpi_pci_driver *driver); |
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| 473 | |
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| 474 | #endif /*CONFIG_ACPI_PCI*/ |
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| 475 | |
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| 476 | #ifdef CONFIG_ACPI_EC |
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| 477 | |
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| 478 | extern int ec_read(__u8 addr, __u8 *val); |
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| 479 | extern int ec_write(__u8 addr, __u8 val); |
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| 480 | |
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| 481 | #endif /*CONFIG_ACPI_EC*/ |
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| 482 | |
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| 483 | #ifdef CONFIG_ACPI_INTERPRETER |
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| 484 | |
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| 485 | extern int acpi_blacklisted(void); |
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| 486 | extern void acpi_bios_year(char *s); |
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| 487 | |
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| 488 | #else /*!CONFIG_ACPI_INTERPRETER*/ |
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| 489 | |
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| 490 | static inline int acpi_blacklisted(void) |
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| 491 | { |
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| 492 | return 0; |
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| 493 | } |
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| 494 | |
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| 495 | #endif /*!CONFIG_ACPI_INTERPRETER*/ |
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| 496 | |
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| 497 | #define ACPI_CSTATE_LIMIT_DEFINED /* for driver builds */ |
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| 498 | #ifdef CONFIG_ACPI |
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| 499 | |
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| 500 | /* |
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| 501 | * Set highest legal C-state |
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| 502 | * 0: C0 okay, but not C1 |
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| 503 | * 1: C1 okay, but not C2 |
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| 504 | * 2: C2 okay, but not C3 etc. |
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| 505 | */ |
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| 506 | |
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| 507 | extern unsigned int max_cstate; |
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| 508 | |
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| 509 | static inline unsigned int acpi_get_cstate_limit(void) |
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| 510 | { |
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| 511 | return max_cstate; |
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| 512 | } |
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| 513 | static inline void acpi_set_cstate_limit(unsigned int new_limit) |
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| 514 | { |
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| 515 | max_cstate = new_limit; |
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| 516 | return; |
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| 517 | } |
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| 518 | #else |
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| 519 | static inline unsigned int acpi_get_cstate_limit(void) { return 0; } |
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| 520 | static inline void acpi_set_cstate_limit(unsigned int new_limit) { return; } |
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| 521 | #endif |
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| 522 | |
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| 523 | #ifdef CONFIG_ACPI_NUMA |
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| 524 | int acpi_get_pxm(acpi_handle handle); |
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| 525 | #else |
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| 526 | static inline int acpi_get_pxm(acpi_handle handle) |
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| 527 | { |
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| 528 | return 0; |
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| 529 | } |
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| 530 | #endif |
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| 531 | |
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| 532 | extern int pnpacpi_disabled; |
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| 533 | |
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| 534 | #endif /*_LINUX_ACPI_H*/ |
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