100 lines
3.9 KiB
C
100 lines
3.9 KiB
C
/* $NetBSD: pci_machdep.h,v 1.11 1998/08/15 03:02:40 mycroft Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
|
|
* Copyright (c) 1994 Charles M. Hannum. 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.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by Charles M. Hannum.
|
|
* 4. The name of the author 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 ``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 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.
|
|
*/
|
|
|
|
/*
|
|
* Machine-specific definitions for PCI autoconfiguration.
|
|
*/
|
|
|
|
/*
|
|
* Many i386 PCI systems only work properly with I/O mapped space, in
|
|
* particular, buses behind PCI-PCI bridges may not have memory
|
|
* space mapped at all. For this reason, tell drivers that have
|
|
* a choice that we "prefer" I/O space.
|
|
*/
|
|
#define PCI_PREFER_IOSPACE
|
|
|
|
/*
|
|
* i386-specific PCI structure and type definitions.
|
|
* NOT TO BE USED DIRECTLY BY MACHINE INDEPENDENT CODE.
|
|
*
|
|
* Configuration tag; created from a {bus,device,function} triplet by
|
|
* pci_make_tag(), and passed to pci_conf_read() and pci_conf_write().
|
|
* We could instead always pass the {bus,device,function} triplet to
|
|
* the read and write routines, but this would cause extra overhead.
|
|
*
|
|
* Mode 2 is historical and deprecated by the Revision 2.0 specification.
|
|
*/
|
|
union i386_pci_tag_u {
|
|
u_int32_t mode1;
|
|
struct {
|
|
u_int16_t port;
|
|
u_int8_t enable;
|
|
u_int8_t forward;
|
|
} mode2;
|
|
};
|
|
|
|
extern struct i386_bus_dma_tag pci_bus_dma_tag;
|
|
|
|
/*
|
|
* Types provided to machine-independent PCI code
|
|
*/
|
|
typedef void *pci_chipset_tag_t;
|
|
typedef union i386_pci_tag_u pcitag_t;
|
|
typedef int pci_intr_handle_t;
|
|
|
|
/*
|
|
* i386-specific PCI variables and functions.
|
|
* NOT TO BE USED DIRECTLY BY MACHINE INDEPENDENT CODE.
|
|
*/
|
|
extern int pci_mode;
|
|
int pci_mode_detect __P((void));
|
|
int pci_bus_flags __P((void));
|
|
|
|
/*
|
|
* Functions provided to machine-independent PCI code.
|
|
*/
|
|
void pci_attach_hook __P((struct device *, struct device *,
|
|
struct pcibus_attach_args *));
|
|
int pci_bus_maxdevs __P((pci_chipset_tag_t, int));
|
|
pcitag_t pci_make_tag __P((pci_chipset_tag_t, int, int, int));
|
|
void pci_decompose_tag __P((pci_chipset_tag_t, pcitag_t,
|
|
int *, int *, int *));
|
|
pcireg_t pci_conf_read __P((pci_chipset_tag_t, pcitag_t, int));
|
|
void pci_conf_write __P((pci_chipset_tag_t, pcitag_t, int,
|
|
pcireg_t));
|
|
int pci_intr_map __P((pci_chipset_tag_t, pcitag_t, int, int,
|
|
pci_intr_handle_t *));
|
|
const char *pci_intr_string __P((pci_chipset_tag_t, pci_intr_handle_t));
|
|
void *pci_intr_establish __P((pci_chipset_tag_t, pci_intr_handle_t,
|
|
int, int (*)(void *), void *));
|
|
void pci_intr_disestablish __P((pci_chipset_tag_t, void *));
|