/* $NetBSD: pcibios.h,v 1.12 2007/12/25 18:33:33 perry Exp $ */
/*
* Copyright (c) 1999, by UCHIYAMA Yasushi
* 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. The name of the developer may NOT be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 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.
*/
/*
* Data structure definitions for the PCI BIOS interface.
*/
/*
* PCI BIOS return codes.
*/
#define PCIBIOS_SUCCESS 0x00
#define PCIBIOS_SERVICE_NOT_PRESENT 0x80
#define PCIBIOS_FUNCTION_NOT_SUPPORTED 0x81
#define PCIBIOS_BAD_VENDOR_ID 0x83
#define PCIBIOS_DEVICE_NOT_FOUND 0x86
#define PCIBIOS_BAD_REGISTER_NUMBER 0x87
#define PCIBIOS_SET_FAILED 0x88
#define PCIBIOS_BUFFER_TOO_SMALL 0x89
/*
* PCI IRQ Routing Table definitions.
*/
/*
* Slot entry (per PCI 2.1)
*/
struct pcibios_linkmap {
uint8_t link;
uint16_t bitmap;
} __packed;
struct pcibios_intr_routing {
uint8_t bus;
uint8_t device;
struct pcibios_linkmap linkmap[4]; /* INT[A:D]# */
uint8_t slot;
uint8_t reserved;
} __packed;
/*
* $PIR header. Reference:
*
*
http://www.microsoft.com/whdc/hwdev/archive/BUSBIOS/pciirq.mspx
*/
struct pcibios_pir_header {
uint32_t signature; /* $PIR */
uint16_t version;
uint16_t tablesize;
uint8_t router_bus;
uint8_t router_devfunc;
uint16_t exclusive_irq;
uint32_t compat_router; /* PCI vendor/product */
uint32_t miniport;
uint8_t reserved[11];
uint8_t checksum;
} __packed;
#define PIR_DEVFUNC_DEVICE(devfunc) (((devfunc) >> 3) & 0x1f)
#define PIR_DEVFUNC_FUNCTION(devfunc) ((devfunc) & 7)
void pcibios_init(void);
extern struct pcibios_pir_header pcibios_pir_header;
extern struct pcibios_intr_routing *pcibios_pir_table;
extern int pcibios_pir_table_nentries;
extern int pcibios_max_bus;
#ifdef PCIBIOSVERBOSE
extern int pcibiosverbose;
#define PCIBIOS_PRINTV(arg) \
do { \
if (pcibiosverbose) \
aprint_normal arg; \
} while (0)
#define PCIBIOS_PRINTVN(n, arg) \
do { \
if (pcibiosverbose > (n)) \
aprint_normal arg; \
} while (0)
#else
#define PCIBIOS_PRINTV(arg)
#define PCIBIOS_PRINTVN(n, arg)
#endif
