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/* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/bus/Pci.h,v 1.17 2001/04/20 17:02:43 tsi Exp $ */
/*
* Copyright 1998 by Concurrent Computer Corporation
*
* Permission to use, copy, modify, distribute, and sell this software
* and its documentation for any purpose is hereby granted without fee,
* provided that the above copyright notice appear in all copies and that
* both that copyright notice and this permission notice appear in
* supporting documentation, and that the name of Concurrent Computer
* Corporation not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior
* permission. Concurrent Computer Corporation makes no representations
* about the suitability of this software for any purpose. It is
* provided "as is" without express or implied warranty.
*
* CONCURRENT COMPUTER CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD
* TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS, IN NO EVENT SHALL CONCURRENT COMPUTER CORPORATION BE
* LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
* DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
* WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
* ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
* SOFTWARE.
*
* Copyright 1998 by Metro Link Incorporated
*
* Permission to use, copy, modify, distribute, and sell this software
* and its documentation for any purpose is hereby granted without fee,
* provided that the above copyright notice appear in all copies and that
* both that copyright notice and this permission notice appear in
* supporting documentation, and that the name of Metro Link
* Incorporated not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior
* permission. Metro Link Incorporated makes no representations
* about the suitability of this software for any purpose. It is
* provided "as is" without express or implied warranty.
*
* METRO LINK INCORPORATED DISCLAIMS ALL WARRANTIES WITH REGARD
* TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS, IN NO EVENT SHALL METRO LINK INCORPORATED BE
* LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
* DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
* WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
* ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
* SOFTWARE.
*
* This file is derived in part from the original xf86_PCI.h that included
* following copyright message:
*
* Copyright 1995 by Robin Cutshaw <robin@XFree86.Org>
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the names of the above listed copyright holder(s)
* not be used in advertising or publicity pertaining to distribution of
* the software without specific, written prior permission. The above listed
* copyright holder(s) make(s) no representations about the suitability of this
* software for any purpose. It is provided "as is" without express or
* implied warranty.
*
* THE ABOVE LISTED COPYRIGHT HOLDER(S) DISCLAIM(S) ALL WARRANTIES WITH REGARD
* TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS, IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE
* LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
* DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
/*
* This file has the private Pci definitions. The public ones are imported
* from xf86Pci.h. Drivers should not use this file.
*/
#ifndef _PCI_H
#define _PCI_H 1
#include "Xarch.h"
#include "Xfuncproto.h"
#include "xf86Pci.h"
/*
* Global Definitions
*/
#define MAX_PCI_DEVICES 64 /* Max number of devices accomodated */
/* by xf86scanpci */
#define MAX_PCI_BUSES 256 /* Max number of PCI buses */
#define PCI_NOT_FOUND 0xffffffff
/*
*
*/
#define PCI_MAKE_TAG(b,d,f) ((((b) & 0xff) << 16) | \
(((d) & 0x1f) << 11) | \
(((f) & 0x7) << 8))
#define PCI_BUS_FROM_TAG(tag) (((tag) & 0x00ff0000) >> 16)
#define PCI_DEV_FROM_TAG(tag) (((tag) & 0x0000f800) >> 11)
#define PCI_FUNC_FROM_TAG(tag) (((tag) & 0x00000700) >> 8)
#define PCI_DFN_FROM_TAG(tag) (((tag) & 0x0000ff00) >> 8)
/*
* Debug Macros/Definitions
*/
/* #define DEBUGPCI 2 */ /* Disable/enable trace in PCI code */
#if defined(DEBUGPCI)
# define PCITRACE(lvl,printfargs) \
if (lvl > xf86Verbose) { \
ErrorF printfargs; \
}
#else /* !defined(DEBUGPCI) */
# define PCITRACE(lvl,printfargs)
#endif /* !defined(DEBUGPCI) */
/*
* PCI Config mechanism definitions
*/
#define PCI_EN 0x80000000
#define PCI_CFGMECH1_ADDRESS_REG 0xCF8
#define PCI_CFGMECH1_DATA_REG 0xCFC
#define PCI_CFGMECH1_MAXDEV 32
#define PCI_CFGMECH1_TYPE1_CFGADDR(b,d,f,o) (PCI_EN | PCI_MAKE_TAG(b,d,f) | ((o) & 0xff) | 1)
#define PCI_CFGMECH1_TYPE0_CFGADDR(d,f,o) (PCI_EN | PCI_MAKE_TAG(0,d,f) | ((o) & 0xff))
/*
* Select architecture specific PCI init function
*/
#if (defined(__powerpc__) || defined(__mips__)) && defined(linux)
# define ARCH_PCI_INIT linuxPciInit
# define INCLUDE_XF86_MAP_PCI_MEM
#elif defined(__powerpc__) && defined(__OpenBSD__)
# define ARCH_PCI_INIT freebsdPciInit
# define INCLUDE_XF86_MAP_PCI_MEM
#elif defined(__powerpc__)
# define ARCH_PCI_INIT ppcPciInit
# if !defined(PowerMAX_OS)
# define INCLUDE_XF86_MAP_PCI_MEM
# endif
#elif defined(__sparc__) && (defined(linux) || defined(sun))
# define ARCH_PCI_INIT sparcPciInit
# define INCLUDE_XF86_MAP_PCI_MEM
#elif defined(__alpha__) && defined(linux)
# define ARCH_PCI_INIT axpPciInit
# define INCLUDE_XF86_MAP_PCI_MEM
#elif defined(__i386__) && defined(linux)
# define ARCH_PCI_INIT ix86PciInit
# define ARCH_PCI_OS_INIT linuxPciInit
# define INCLUDE_XF86_MAP_PCI_MEM
#elif defined(__ia64__) && defined(linux)
# define ARCH_PCI_INIT linuxPciInit
# define INCLUDE_XF86_MAP_PCI_MEM
#elif defined(__alpha__) && defined(__FreeBSD__)
# define ARCH_PCI_INIT freebsdPciInit
# define INCLUDE_XF86_MAP_PCI_MEM
#else
# define ARCH_PCI_INIT ix86PciInit
# define INCLUDE_XF86_MAP_PCI_MEM
#endif
extern void ARCH_PCI_INIT(void);
#if defined(ARCH_PCI_OS_INIT)
extern void ARCH_PCI_OS_INIT(void);
#endif
/*
* Table of functions used to access a specific PCI bus domain
* (e.g. a primary PCI bus and all of its secondaries)
*/
typedef struct pci_bus_funcs {
CARD32 (*pciReadLong)(PCITAG, int);
void (*pciWriteLong)(PCITAG, int, CARD32);
void (*pciSetBitsLong)(PCITAG, int, CARD32, CARD32);
ADDRESS (*pciAddrHostToBus)(PCITAG, PciAddrType, ADDRESS);
ADDRESS (*pciAddrBusToHost)(PCITAG, PciAddrType, ADDRESS);
} pciBusFuncs_t;
/*
* pciBusInfo_t - One structure per defined PCI bus
*/
typedef struct pci_bus_info {
unsigned char configMech; /* PCI config type to use */
unsigned char numDevices; /* Range of valid devnums */
unsigned char secondary; /* Boolean: bus is a secondary */
unsigned char primary_bus; /* Top level (primary) parent */
unsigned long ppc_io_base; /* PowerPC I/O spc membase */
unsigned long ppc_io_size; /* PowerPC I/O spc size */
pciBusFuncs_t funcs; /* PCI access functions */
void *pciBusPriv; /* Implementation private data */
} pciBusInfo_t;
/* configMech values */
#define PCI_CFG_MECH_UNKNOWN 0 /* Not yet known */
#define PCI_CFG_MECH_1 1 /* Most machines */
#define PCI_CFG_MECH_2 2 /* Older PC's */
#define PCI_CFG_MECH_OTHER 3 /* Something else */
/* Generic PCI service functions and helpers */
PCITAG pciGenFindFirst(void);
PCITAG pciGenFindNext(void);
CARD32 pciCfgMech1Read(PCITAG tag, int offset);
void pciCfgMech1Write(PCITAG tag, int offset, CARD32 val);
void pciCfgMech1SetBits(PCITAG tag, int offset, CARD32 mask,
CARD32 val);
CARD32 pciByteSwap(CARD32);
Bool pciMfDev(int, int);
CARD32 pciReadLongNULL(PCITAG tag, int offset);
void pciWriteLongNULL(PCITAG tag, int offset, CARD32 val);
void pciSetBitsLongNULL(PCITAG tag, int offset, CARD32 mask,
CARD32 val);
ADDRESS pciAddrNOOP(PCITAG tag, PciAddrType type, ADDRESS);
extern PCITAG (*pciFindFirstFP)(void);
extern PCITAG (*pciFindNextFP)(void);
extern CARD32 pciDevid;
extern CARD32 pciDevidMask;
extern int pciBusNum;
extern int pciDevNum;
extern int pciFuncNum;
extern PCITAG pciDeviceTag;
extern pciBusInfo_t *pciBusInfo[];
extern pciBusFuncs_t pciNOOPFuncs;
#endif /* _PCI_H */
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