pci_machdep.h revision 1.4 
1/*	$NetBSD: pci_machdep.h,v 1.4 2004/07/29 16:55:26 drochner Exp $ */
2
3/*
4 * Copyright (c) 1999 Matthew R. Green
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. The name of the author may not be used to endorse or promote products
16 *    derived from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
23 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
25 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 */
30
31#ifndef _SPARC_PCI_MACHDEP_H_
32#define _SPARC_PCI_MACHDEP_H_
33
34/*
35 * Machine-specific definitions for PCI autoconfiguration.
36 */
37
38/*
39 * Types provided to machine-independent PCI code
40 */
41typedef struct sparc_pci_chipset *pci_chipset_tag_t;
42typedef u_int pci_intr_handle_t;
43typedef u_int64_t pcitag_t;
44
45
46/*
47 * Forward declarations.
48 */
49struct pci_attach_args;
50
51
52/*
53 * sparc-specific PCI structure and type definitions.
54 * NOT TO BE USED DIRECTLY BY MACHINE INDEPENDENT CODE.
55 */
56struct sparc_pci_chipset {
57	void		*cookie;	/* msiiep_softc, but sssh! */
58};
59
60/*
61 * The MI PCI code expects pcitag_t to be a scalar type.  But besides
62 * the bus/device/function we need to store the OFW node as well.  We
63 * can squeeze them into a u_int64_t with a little help from some
64 * macros.  And while we are at it mangle bus/device/function into a
65 * form directly suitable for pci mode1 configuration address port.
66 */
67#define	PCITAG_CREATE(n,b,d,f)	\
68	(((u_int64_t)(n)<<32)|0x80000000U|((b)<<16)|((d)<<11)|((f)<<8))
69
70#define	PCITAG_NODE(t)		((u_int32_t)(((t)>>32)&0xffffffff))
71#define	PCITAG_OFFSET(t)	((u_int32_t)((t)&0xffffffff))
72#define PCITAG_BUS(t)		((PCITAG_OFFSET(t)>>16)&0xFF)
73#define PCITAG_DEV(t)		((PCITAG_OFFSET(t)>>11)&0x1F)
74#define PCITAG_FUN(t)		((PCITAG_OFFSET(t)>>8)&0x7)
75
76
77/*
78 * Functions provided to machine-independent PCI code.
79 */
80void		pci_attach_hook(struct device *, struct device *,
81				struct pcibus_attach_args *);
82int		pci_bus_maxdevs(pci_chipset_tag_t, int);
83pcitag_t	pci_make_tag(pci_chipset_tag_t, int, int, int);
84void		pci_decompose_tag(pci_chipset_tag_t, pcitag_t,
85				  int *, int *, int *);
86pcireg_t	pci_conf_read(pci_chipset_tag_t, pcitag_t, int);
87void		pci_conf_write(pci_chipset_tag_t, pcitag_t, int, pcireg_t);
88int		pci_intr_map(struct pci_attach_args *, pci_intr_handle_t *);
89const char	*pci_intr_string(pci_chipset_tag_t, pci_intr_handle_t);
90const struct evcnt *pci_intr_evcnt(pci_chipset_tag_t, pci_intr_handle_t);
91void		*pci_intr_establish(pci_chipset_tag_t, pci_intr_handle_t,
92				    int, int (*)(void *), void *);
93void		pci_intr_disestablish(pci_chipset_tag_t, void *);
94
95#endif /* _SPARC_PCI_MACHDEP_H_ */
96