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authorStefan Reinauer <stepan@openbios.org>2004-01-28 16:56:14 +0000
committerStefan Reinauer <stepan@openbios.org>2004-01-28 16:56:14 +0000
commit688b385aec24157e2112d0efa06868b4f8dfb97c (patch)
treee14205a31ab7c68432735d01e6f722a31623c041 /src/arch/i386/include
parent22489894e189616bb5694cfed8bd951951e68fae (diff)
please forgive me... ;)
* initial acpi support code * fix header git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1358 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/arch/i386/include')
-rw-r--r--src/arch/i386/include/arch/acpi.h92
1 files changed, 92 insertions, 0 deletions
diff --git a/src/arch/i386/include/arch/acpi.h b/src/arch/i386/include/arch/acpi.h
new file mode 100644
index 0000000000..6b6965684c
--- /dev/null
+++ b/src/arch/i386/include/arch/acpi.h
@@ -0,0 +1,92 @@
+/*
+ * 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.
+ *
+ */
+
+
+#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_NAME "RSDP"
+#define RSDP_SIG "RSD PTR " /* RSDT Pointer signature */
+
+/* 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;
+
+/* 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;
+
+
+unsigned long write_acpi_tables(unsigned long addr);
+
+#else // HAVE_ACPI_TABLES
+
+#define write_acpi_tables(start) (start)
+
+#endif
+
+#endif