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/*
* Initial LinuxBIOS ACPI Support - headers and defines.
*
* written by Stefan Reinauer <stepan@openbios.org>
* (C) 2004 SUSE LINUX AG
*
* The ACPI table structs are based on the Linux kernel sources.
*
*/
/* ACPI FADT & FACS added by Nick Barker <nick.barker9@btinternet.com>
* those parts (C) 2004 Nick Barker
*/
#ifndef __ASM_ACPI_H
#define __ASM_ACPI_H
#if HAVE_ACPI_TABLES==1
typedef unsigned char u8;
typedef unsigned short u16;
typedef unsigned int u32;
typedef unsigned long long u64;
#define RSDP_SIG "RSD PTR " /* RSDT Pointer signature */
#define RSDP_NAME "RSDP"
#define RSDT_NAME "RSDT"
#define HPET_NAME "HPET"
#define MADT_NAME "APIC"
#define RSDT_TABLE "RSDT "
#define HPET_TABLE "AMD64 "
#define MADT_TABLE "MADT "
#define OEM_ID "LXBIOS"
#define ASLC "NONE"
/* ACPI 2.0 table RSDP */
typedef struct acpi_rsdp {
char signature[8];
u8 checksum;
char oem_id[6];
u8 revision;
u32 rsdt_address;
u32 length;
u64 xsdt_address;
u8 ext_checksum;
u8 reserved[3];
} __attribute__((packed)) acpi_rsdp_t;
/* Generic Address Container */
typedef struct acpi_gen_regaddr {
u8 space_id;
u8 bit_width;
u8 bit_offset;
u8 resv;
u32 addrl;
u32 addrh;
} __attribute__ ((packed)) acpi_addr_t;
/* Generic ACPI Header, provided by (almost) all tables */
typedef struct acpi_table_header /* ACPI common table header */
{
char signature [4]; /* ACPI signature (4 ASCII characters) */\
u32 length; /* Length of table, in bytes, including header */\
u8 revision; /* ACPI Specification minor version # */\
u8 checksum; /* To make sum of entire table == 0 */\
char oem_id [6]; /* OEM identification */\
char oem_table_id [8]; /* OEM table identification */\
u32 oem_revision; /* OEM revision number */\
char asl_compiler_id [4]; /* ASL compiler vendor ID */\
u32 asl_compiler_revision; /* ASL compiler revision number */
} __attribute__ ((packed)) acpi_header_t;
/* RSDT */
typedef struct acpi_rsdt {
struct acpi_table_header header;
u32 entry[8];
} __attribute__ ((packed)) acpi_rsdt_t;
/* XSDT */
typedef struct acpi_xsdt {
struct acpi_table_header header;
u64 entry[8];
} __attribute__ ((packed)) acpi_xsdt_t;
/* HPET TIMERS */
typedef struct acpi_hpet {
struct acpi_table_header header;
u32 id;
struct acpi_gen_regaddr addr;
u8 number;
u16 min_tick;
u8 attributes;
} __attribute__ ((packed)) acpi_hpet_t;
typedef struct acpi_madt {
struct acpi_table_header header;
u32 lapic_addr;
u32 flags;
} __attribute__ ((packed)) acpi_madt_t;
enum acpi_apic_types {
LocalApic = 0,
IOApic = 1,
IRQSourceOverride = 2,
NMI = 3,
LocalApicNMI = 4,
LApicAddressOverride = 5,
IOSApic = 6,
LocalSApic = 7,
PlatformIRQSources = 8
};
typedef struct acpi_madt_lapic {
u8 type;
u8 length;
u8 processor_id;
u8 apic_id;
u32 flags;
} __attribute__ ((packed)) acpi_madt_lapic_t;
typedef struct acpi_madt_lapic_nmi {
u8 type;
u8 length;
u8 processor_id;
u16 flags;
u8 lint;
} __attribute__ ((packed)) acpi_madt_lapic_nmi_t;
typedef struct acpi_madt_ioapic {
u8 type;
u8 length;
u8 ioapic_id;
u8 reserved;
u32 ioapic_addr;
u32 gsi_base;
} __attribute__ ((packed)) acpi_madt_ioapic_t;
typedef struct acpi_madt_irqoverride {
u8 type;
u8 length;
u8 bus;
u8 source;
u32 gsirq;
u16 flags;
} __attribute__ ((packed)) acpi_madt_irqoverride_t;
typedef struct acpi_fadt {
struct acpi_table_header header;
u32 firmware_ctrl;
u32 dsdt;
u8 res1;
u8 preferred_pm_profile;
u16 sci_int;
u32 smi_cmd;
u8 acpi_enable;
u8 acpi_disable;
u8 s4bios_req;
u8 pstate_cnt;
u32 pm1a_evt_blk;
u32 pm1b_evt_blk;
u32 pm1a_cnt_blk;
u32 pm1b_cnt_blk;
u32 pm2_cnt_blk;
u32 pm_tmr_blk;
u32 gpe0_blk;
u32 gpe1_blk;
u8 pm1_evt_len;
u8 pm1_cnt_len;
u8 pm2_cnt_len;
u8 pm_tmr_len;
u8 gpe0_blk_len;
u8 gpe1_blk_len;
u8 gpe1_base;
u8 cst_cnt;
u16 p_lvl2_lat;
u16 p_lvl3_lat;
u16 flush_size;
u16 flush_stride;
u8 duty_offset;
u8 duty_width;
u8 day_alrm;
u8 mon_alrm;
u8 century;
u16 iapc_boot_arch;
u8 res2;
u32 flags;
struct acpi_gen_regaddr reset_reg;
u8 reset_value;
u8 res3;
u8 res4;
u8 res5;
u32 x_firmware_ctl_l;
u32 x_firmware_ctl_h;
u32 x_dsdt_l;
u32 x_dsdt_h;
struct acpi_gen_regaddr x_pm1a_evt_blk;
struct acpi_gen_regaddr x_pm1b_evt_blk;
struct acpi_gen_regaddr x_pm1a_cnt_blk;
struct acpi_gen_regaddr x_pm1b_cnt_blk;
struct acpi_gen_regaddr x_pm2_cnt_blk;
struct acpi_gen_regaddr x_pm_tmr_blk;
struct acpi_gen_regaddr x_gpe0_blk;
struct acpi_gen_regaddr x_gpe1_blk;
} __attribute__ ((packed)) acpi_fadt_t;
typedef struct acpi_facs {
char signature[4];
u32 length;
u32 hardware_signature;
u32 firmware_waking_vector;
u32 global_lock;
u32 flags;
u32 x_firmware_waking_vector_l;
u32 x_firmware_waking_vector_h;
u8 version;
u8 resv[33];
} __attribute__ ((packed)) acpi_facs_t;
/* These are implemented by the target port */
unsigned long write_acpi_tables(unsigned long addr);
unsigned long acpi_dump_apics(unsigned long current);
/* These can be used by the target port */
u8 acpi_checksum(u8 *table, u32 length);
void acpi_add_table(acpi_rsdt_t *rsdt, void *table);
int acpi_create_madt_lapic(acpi_madt_lapic_t *lapic, u8 cpu, u8 apic);
int acpi_create_madt_ioapic(acpi_madt_ioapic_t *ioapic, u8 id, u32 addr,u32 gsi_base);
void acpi_create_madt(acpi_madt_t *madt);
void acpi_create_hpet(acpi_hpet_t *hpet);
void acpi_create_facs(acpi_facs_t *facs);
void acpi_write_rsdt(acpi_rsdt_t *rsdt);
void acpi_write_rsdp(acpi_rsdp_t *rsdp, acpi_rsdt_t *rsdt);
#define ACPI_WRITE_MADT_IOAPIC(dev,id) \
do { \
struct resource *res; \
res = find_resource(dev, PCI_BASE_ADDRESS_0); \
if (!res) break; \
current += acpi_create_madt_ioapic( \
(acpi_madt_ioapic_t *)current, \
id, res->base, gsi_base); \
gsi_base+=4; \
} while(0);
#define IO_APIC_ADDR 0xfec00000UL
#else // HAVE_ACPI_TABLES
#define write_acpi_tables(start) (start)
#endif
#endif
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