157 lines
4.1 KiB
C
157 lines
4.1 KiB
C
/* ----------------------------------------------------------------------- *
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*
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* Copyright 2009-2011 Erwan Velu - All Rights Reserved
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, Inc., 53 Temple Place Ste 330,
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* Boston MA 02111-1307, USA; either version 2 of the License, or
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* (at your option) any later version; incorporated herein by reference.
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*
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* ----------------------------------------------------------------------- */
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#ifndef MADT_H
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#define MADT_H
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#include <inttypes.h>
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#include <stdbool.h>
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#define MADT "MADT"
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#define APIC "APIC"
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enum {
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PROCESSOR_LOCAL_APIC = 0,
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IO_APIC = 1,
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INTERRUPT_SOURCE_OVERRIDE = 2,
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NMI = 3,
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LOCAL_APIC_NMI_STRUCTURE = 4,
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LOCAL_APIC_ADDRESS_OVERRIDE_STRUCTURE = 5,
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IO_SAPIC = 6,
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LOCAL_SAPIC = 7,
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PLATEFORM_INTERRUPT_SOURCES = 8
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};
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/* Features flags for
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* - processor_local_apic flags
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* - local sapic flags
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*/
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#define PROCESSOR_LOCAL_APIC_ENABLE 1
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#define MAX_S_L_P 255
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typedef struct {
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uint8_t type;
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uint8_t length;
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uint8_t acpi_id;
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uint8_t apic_id;
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uint32_t flags;
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} __attribute__ ((packed)) s_processor_local_apic;
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#define MAX_IO_APIC 255
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typedef struct {
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uint8_t type;
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uint8_t length;
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uint8_t io_apic_id;
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uint8_t reserved;
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uint32_t io_apic_address;
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uint32_t global_system_interrupt_base;
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} __attribute__ ((packed)) s_io_apic;
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/* Features flags for
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* - interrupt_source_override
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* - nmi
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*/
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/* Bits 1&2 must be set to 0 */
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#define POLARITY_CONFORM_MASK 0x0
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#define POLARITY_ACTIVE_HIGH 0x1
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#define POLARITY_RESERVED 0x2
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#define POLARITY_ACTIVE_LOW 0x3
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/* Bits 3&4 must be set to 0 */
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#define TRIGGER_CONFORM_MASK 0x3
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#define TRIGGER_EDGE 0x4
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#define TRIGGER_RESERVED 0x8
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#define TRIGGER_LEVEL 0xA
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#define MAX_I_S_O 255
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typedef struct {
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uint8_t type;
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uint8_t length;
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uint8_t bus;
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uint8_t source;
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uint32_t global_system_interrupt;
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uint16_t flags;
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} __attribute__ ((packed)) s_interrupt_source_override;
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typedef struct {
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uint8_t type;
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uint8_t length;
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uint8_t flags;
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uint32_t global_system_interrupt;
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} __attribute__ ((packed)) s_nmi;
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#define MAX_LOCAL_APIC_NMI 255
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typedef struct {
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uint8_t type;
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uint8_t length;
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uint8_t acpi_processor_id;
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uint16_t flags;
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uint8_t local_apic_lint;
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} __attribute__ ((packed)) s_local_apic_nmi;
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#define MAX_L_A_A_O 255
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typedef struct {
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uint8_t type;
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uint8_t length;
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uint16_t reserved;
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uint64_t local_apic_address;
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} __attribute__ ((packed)) s_local_apic_address_override;
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#define MAX_IO_SAPIC 255
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typedef struct {
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uint8_t type;
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uint8_t length;
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uint8_t io_apic_id;
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uint8_t reserved;
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uint32_t global_system_interrupt_base;
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uint64_t io_sapic_address;
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} __attribute__ ((packed)) s_io_sapic;
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#define ACPI_PROCESSOR_UID_STRING_OFFSET 16
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#define MAX_LOCAL_SAPIC 255
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typedef struct {
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uint8_t type;
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uint8_t length;
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uint8_t acpi_processor_id;
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uint8_t local_sapic_id;
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uint8_t local_sapic_eid;
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uint8_t reserved[3];
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uint32_t flags;
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uint32_t acpi_processor_uid_value;
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char *acpi_processor_uid_string;
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} __attribute__ ((packed)) s_local_sapic;
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typedef struct {
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uint64_t *address;
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s_acpi_description_header header;
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uint32_t local_apic_address;
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uint32_t flags;
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s_processor_local_apic processor_local_apic[MAX_S_L_P];
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uint8_t processor_local_apic_count;
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s_io_apic io_apic[MAX_IO_APIC];
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uint8_t io_apic_count;
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s_interrupt_source_override interrupt_source_override[MAX_I_S_O];
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uint8_t interrupt_source_override_count;
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s_nmi nmi[MAX_I_S_O];
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uint8_t nmi_count;
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s_local_apic_nmi local_apic_nmi[MAX_LOCAL_APIC_NMI];
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uint8_t local_apic_nmi_count;
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s_local_apic_address_override local_apic_address_override[MAX_L_A_A_O];
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uint8_t local_apic_address_override_count;
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s_io_sapic io_sapic[MAX_IO_SAPIC];
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uint8_t io_sapic_count;
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s_local_sapic local_sapic[MAX_LOCAL_SAPIC];
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uint8_t local_sapic_count;
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bool valid;
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} s_madt;
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void print_madt(s_madt * madt);
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#endif
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