pci_machdep.h revision 1.10 
1/*	$NetBSD: pci_machdep.h,v 1.10 2011/05/11 17:49:31 dyoung Exp $	*/
2
3/*
4 * Copyright (c) 1996 Christopher G. Demetriou.  All rights reserved.
5 * Copyright (c) 1994 Charles M. Hannum.  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. All advertising materials mentioning features or use of this software
16 *    must display the following acknowledgement:
17 *	This product includes software developed by Charles M. Hannum.
18 * 4. The name of the author may not be used to endorse or promote products
19 *    derived from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33/*
34 * Machine-specific definitions for PCI autoconfiguration.
35 */
36
37#define __HAVE_PCI_CONF_HOOK
38
39/*
40 * Forward declarations.
41 */
42struct pci_attach_args;
43
44/*
45 * Types provided to machine-independent PCI code
46 */
47
48typedef struct sgimips_pci_chipset *pci_chipset_tag_t;
49typedef u_int32_t	pcitag_t;
50typedef int 		pci_intr_handle_t;
51
52/*
53 * SGI-specific PCI structure and type definitions.
54 * NOT TO BE USED DIRECTLY BY MACHINE INDEPENDENT CODE.
55 */
56struct sgimips_pci_chipset {
57	int		(*pc_bus_maxdevs)(pci_chipset_tag_t, int);
58	pcireg_t	(*pc_conf_read)(pci_chipset_tag_t, pcitag_t, int);
59	void		(*pc_conf_write)(pci_chipset_tag_t, pcitag_t, int,
60				pcireg_t);
61	int		(*pc_conf_hook)(pci_chipset_tag_t, int, int, int,
62				pcireg_t);
63	int		(*pc_intr_map)(const struct pci_attach_args *,
64				pci_intr_handle_t *);
65	const char *	(*pc_intr_string)(pci_chipset_tag_t pc,
66				pci_intr_handle_t);
67	void		*(*intr_establish)(int , int, int (*)(void *), void *);
68	void		(*intr_disestablish)(void *ih);
69
70	bus_space_tag_t iot;
71	bus_space_handle_t ioh;
72
73	void *cookie;
74
75	struct extent *pc_memext;	/* PCI memory space extent */
76	struct extent *pc_ioext;	/* PCI I/O space extent */
77};
78
79extern struct sgimips_bus_dma_tag pci_bus_dma_tag;
80
81/*
82 * Functions provided to machine-independent PCI code.
83 */
84void		pci_attach_hook(struct device *, struct device *,
85			struct pcibus_attach_args *);
86int		pci_bus_maxdevs(pci_chipset_tag_t, int);
87pcitag_t	pci_make_tag(pci_chipset_tag_t, int, int, int);
88void		pci_decompose_tag(pci_chipset_tag_t, pcitag_t,
89			int *, int *, int *);
90pcireg_t	pci_conf_read(pci_chipset_tag_t, pcitag_t, int);
91void		pci_conf_write(pci_chipset_tag_t, pcitag_t, int,
92			pcireg_t);
93int		pci_conf_hook(pci_chipset_tag_t, int, int, int, pcireg_t);
94int		pci_intr_map(const struct pci_attach_args *,
95			pci_intr_handle_t *);
96const char	*pci_intr_string(pci_chipset_tag_t, pci_intr_handle_t);
97const struct evcnt *pci_intr_evcnt(pci_chipset_tag_t, pci_intr_handle_t);
98void		*pci_intr_establish(pci_chipset_tag_t, pci_intr_handle_t,
99			int, int (*)(void *), void *);
100void		pci_intr_disestablish(pci_chipset_tag_t, void *);
101
102void		pci_conf_interrupt(pci_chipset_tag_t, int, int, int, int,
103			int *);
104