280 lines
8.1 KiB
C
280 lines
8.1 KiB
C
/*-
|
|
* Copyright (c) 1997 Michael Smith
|
|
* Copyright (c) 1998 Jonathan Lemon
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
/*
|
|
* Signature structure for the BIOS32 Service Directory header
|
|
*/
|
|
struct bios32_SDheader
|
|
{
|
|
u_int8_t sig[4];
|
|
u_int32_t entry;
|
|
u_int8_t revision;
|
|
u_int8_t len;
|
|
u_int8_t cksum;
|
|
u_int8_t pad[5];
|
|
};
|
|
|
|
/*
|
|
* BIOS32 Service Directory entry. Caller supplies name, bios32_SDlookup
|
|
* fills in the rest of the details.
|
|
*/
|
|
struct bios32_SDentry
|
|
{
|
|
union
|
|
{
|
|
u_int8_t name[4]; /* service identifier */
|
|
u_int32_t id; /* as a 32-bit value */
|
|
} ident;
|
|
u_int32_t base; /* base of service */
|
|
u_int32_t len; /* service length */
|
|
u_int32_t entry; /* entrypoint offset from base */
|
|
vm_offset_t ventry; /* entrypoint in kernel virtual segment */
|
|
};
|
|
|
|
extern int bios32_SDlookup(struct bios32_SDentry *ent);
|
|
extern u_int32_t bios_sigsearch(u_int32_t start, u_char *sig, int siglen,
|
|
int paralen, int sigofs);
|
|
|
|
#define BIOS_PADDRTOVADDR(x) (((x) - ISA_HOLE_START) + atdevbase)
|
|
#define BIOS_VADDRTOPADDR(x) (((x) - atdevbase) + ISA_HOLE_START)
|
|
|
|
|
|
/*
|
|
* PnP BIOS presence structure
|
|
*/
|
|
struct PnPBIOS_table
|
|
{
|
|
u_int8_t sig[4]; /* "$PnP */
|
|
u_int8_t version; /* should be 0x10 */
|
|
u_int8_t len; /* total structure length */
|
|
u_int16_t control; /* BIOS feature flags */
|
|
u_int8_t cksum; /* checksum */
|
|
u_int32_t evflagaddr; /* address of event notificaton flag */
|
|
u_int16_t rmentryoffset; /* real-mode entry offset */
|
|
u_int16_t rmentryseg; /* segment */
|
|
u_int16_t pmentryoffset; /* protected-mode entry offset */
|
|
u_int32_t pmentrybase; /* segment base */
|
|
u_int32_t oemdevid; /* motherboard EISA ID */
|
|
u_int16_t rmbiosseg; /* real-mode BIOS segment */
|
|
u_int32_t pmdataseg; /* protected-mode data segment */
|
|
} __attribute__ ((packed));
|
|
|
|
|
|
/*
|
|
* Exported lookup results
|
|
*/
|
|
extern struct bios32_SDentry PCIbios;
|
|
extern struct PnPBIOS_table *PnPBIOStable;
|
|
|
|
struct segment_info {
|
|
u_int base;
|
|
u_int limit;
|
|
};
|
|
|
|
#define BIOSCODE_FLAG 0x01
|
|
#define BIOSDATA_FLAG 0x02
|
|
#define BIOSUTIL_FLAG 0x04
|
|
#define BIOSARGS_FLAG 0x08
|
|
|
|
struct bios_segments {
|
|
struct segment_info code32; /* 32-bit code (mandatory) */
|
|
struct segment_info code16; /* 16-bit code */
|
|
struct segment_info data; /* 16-bit data */
|
|
struct segment_info util; /* 16-bit utility */
|
|
struct segment_info args; /* 16-bit args */
|
|
};
|
|
|
|
struct bios_regs {
|
|
u_int eax;
|
|
u_int ebx;
|
|
u_int ecx;
|
|
u_int edx;
|
|
u_int esi;
|
|
u_int edi;
|
|
};
|
|
|
|
struct bios_args {
|
|
u_int entry; /* entry point of routine */
|
|
struct bios_regs r;
|
|
struct bios_segments seg;
|
|
};
|
|
|
|
/*
|
|
* PnP BIOS return codes
|
|
*/
|
|
#define PNP_SUCCESS 0x00
|
|
#define PNP_NOT_SET_STATICALLY 0x7f
|
|
#define PNP_UNKNOWN_FUNCTION 0x81
|
|
#define PNP_FUNTION_NOT_SUPPORTED 0x82
|
|
#define PNP_INVALID_HANDLE 0x83
|
|
#define PNP_BAD_PARAMETER 0x84
|
|
#define PNP_SET_FAILED 0x85
|
|
#define PNP_EVENTS_NOT_PENDING 0x86
|
|
#define PNP_SYSTEM_NOT_DOCKED 0x87
|
|
#define PNP_NO_ISA_PNP_CARDS 0x88
|
|
#define PNP_UNABLE_TO_DETERMINE_DOCK_CAPABILITIES 0x89
|
|
#define PNP_CONFIG_CHANGE_FAILED_NO_BATTERY 0x8a
|
|
#define PNP_CONFIG_CHANGE_FAILED_RESOURCE_CONFLICT 0x8b
|
|
#define PNP_BUFFER_TOO_SMALL 0x8c
|
|
#define PNP_USE_ESCD_SUPPORT 0x8d
|
|
#define PNP_MESSAGE_NOT_SUPPORTED 0x8e
|
|
#define PNP_HARDWARE_ERROR 0x8f
|
|
|
|
/*
|
|
* DMI return codes
|
|
*/
|
|
#define DMI_SUCCESS 0x00
|
|
#define DMI_UNKNOWN_FUNCTION 0x81
|
|
#define DMI_FUNCTION_NOT_SUPPORTED 0x82
|
|
#define DMI_INVALID_HANDLE 0x83
|
|
#define DMI_BAD_PARAMETER 0x84
|
|
#define DMI_INVALID_SUBFUNCTION 0x85
|
|
#define DMI_NO_CHANGE 0x86
|
|
#define DMI_ADD_STRUCTURE_FAILED 0x87
|
|
#define DMI_READ_ONLY 0x8d
|
|
#define DMI_LOCK_NOT_SUPPORTED 0x90
|
|
#define DMI_CURRENTLY_LOCKED 0x91
|
|
#define DMI_INVALID_LOCK 0x92
|
|
|
|
/*
|
|
* format specifiers and defines for bios16()
|
|
* s = short (16 bits)
|
|
* i = int (32 bits)
|
|
* p = pointer (converted to seg:offset)
|
|
* C,D,U = selector (corresponding to code/data/utility segment)
|
|
*/
|
|
#define PNP_COUNT_DEVNODES "sppD", 0x00
|
|
#define PNP_GET_DEVNODE "sppsD", 0x01
|
|
#define PNP_SET_DEVNODE "sppsD", 0x02
|
|
#define PNP_GET_EVENT "spD", 0x03
|
|
#define PNP_SEND_MSG "ssD", 0x04
|
|
#define PNP_GET_DOCK_INFO "spD", 0x05
|
|
|
|
#define PNP_SEL_PRIBOOT "ssiiisspD", 0x07
|
|
#define PNP_GET_PRIBOOT "sspppppD", 0x08
|
|
#define PNP_SET_RESINFO "spD", 0x09
|
|
#define PNP_GET_RESINFO "spD", 0x0A
|
|
#define PNP_GET_APM_ID "sppD", 0x0B
|
|
|
|
#define PNP_GET_ISA_INFO "spD", 0x40
|
|
#define PNP_GET_ECSD_INFO "spppD", 0x41
|
|
#define PNP_READ_ESCD "spUD", 0x42
|
|
#define PNP_WRITE_ESCD "spUD", 0x43
|
|
|
|
#define PNP_GET_DMI_INFO "spppppD", 0x50
|
|
#define PNP_GET_DMI_STRUCTURE "sppUD", 0x51
|
|
#define PNP_SET_DMI_STRUCTURE "sppsUD" 0x52
|
|
#define PNP_GET_DMI_CHANGE "spUD" 0x53
|
|
#define PNP_DMI_CONTROL "sspsUD" 0x54
|
|
#define PNP_GET_GPNV_INFO "sppppD" 0x55
|
|
#define PNP_READ_GPNV_DATA "ssppUD" 0x56
|
|
#define PNP_WRITE_GPNV_DATA "sspsUD" 0x57
|
|
|
|
#define PNP_BOOT_CHECK "sp", 0x60
|
|
#define PNP_COUNT_IPL "sppp", 0x61
|
|
#define PNP_GET_BOOTPRI "spp", 0x62
|
|
#define PNP_SET_BOOTPRI "sp", 0x63
|
|
#define PNP_GET_LASTBOOT "sp", 0x64
|
|
#define PNP_GET_BOOTFIRST "sp", 0x65
|
|
#define PNP_SET_BOOTFIRST "sp", 0x66
|
|
|
|
/*
|
|
* PCI BIOS functions
|
|
*/
|
|
#define PCIBIOS_READ_CONFIG_BYTE 0xb108
|
|
#define PCIBIOS_READ_CONFIG_WORD 0xb109
|
|
#define PCIBIOS_READ_CONFIG_DWORD 0xb10a
|
|
#define PCIBIOS_WRITE_CONFIG_BYTE 0xb10b
|
|
#define PCIBIOS_WRITE_CONFIG_WORD 0xb10c
|
|
#define PCIBIOS_WRITE_CONFIG_DWORD 0xb10d
|
|
#define PCIBIOS_GET_IRQ_ROUTING 0xb10e
|
|
#define PCIBIOS_ROUTE_INTERRUPT 0xb10f
|
|
|
|
extern int bios16(struct bios_args *, char *, ...);
|
|
extern int bios16_call(struct bios_regs *, char *);
|
|
extern int bios32(struct bios_regs *, u_int, u_short);
|
|
extern void set_bios_selectors(struct bios_segments *, int);
|
|
|
|
/*
|
|
* PCI interrupt routing table.
|
|
*
|
|
* $PIR in the BIOS segment contains a PIR_table
|
|
* int 1a:b106 returns PIR_table in buffer at es:(e)di
|
|
* int 1a:b18e returns PIR_table in buffer at es:(e)di
|
|
* int 1a:b406 returns es:di pointing to the BIOS PIR_table
|
|
*/
|
|
struct PIR_header
|
|
{
|
|
int8_t ph_signature[4];
|
|
u_int16_t ph_version;
|
|
u_int16_t ph_length;
|
|
u_int8_t ph_router_bus;
|
|
u_int8_t ph_router_dev_fn;
|
|
u_int16_t ph_pci_irqs;
|
|
u_int16_t ph_router_vendor;
|
|
u_int16_t ph_router_device;
|
|
u_int32_t ph_miniport;
|
|
u_int8_t ph_res[11];
|
|
u_int8_t ph_checksum;
|
|
} __attribute__ ((packed));
|
|
|
|
struct PIR_intpin
|
|
{
|
|
u_int8_t link;
|
|
u_int16_t irqs;
|
|
} __attribute__ ((packed));
|
|
|
|
struct PIR_entry
|
|
{
|
|
u_int8_t pe_bus;
|
|
u_int8_t pe_res1:3;
|
|
u_int8_t pe_device:5;
|
|
struct PIR_intpin pe_intpin[4];
|
|
u_int8_t pe_slot;
|
|
u_int8_t pe_res3;
|
|
} __attribute__ ((packed));
|
|
|
|
struct PIR_table
|
|
{
|
|
struct PIR_header pt_header;
|
|
struct PIR_entry pt_entry[0];
|
|
} __attribute__ ((packed));
|
|
|
|
/*
|
|
* Int 15:E820 'SMAP' structure
|
|
*
|
|
* XXX add constants for type
|
|
*/
|
|
#define SMAP_SIG 0x534D4150 /* 'SMAP' */
|
|
struct bios_smap {
|
|
u_int64_t base;
|
|
u_int64_t length;
|
|
u_int32_t type;
|
|
} __attribute__ ((packed));
|