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