xref: /netbsd-src/sys/arch/mips/include/pci_machdep.h (revision 91e76cbe906f4ee993adfd286367725659e5470e)
1 /* $NetBSD: pci_machdep.h,v 1.10 2022/08/16 13:50:54 skrll Exp $ */
2 
3 /*
4  * Copyright (c) 1996 Carnegie-Mellon University.
5  * All rights reserved.
6  *
7  * Author: Chris G. Demetriou
8  *
9  * Permission to use, copy, modify and distribute this software and
10  * its documentation is hereby granted, provided that both the copyright
11  * notice and this permission notice appear in all copies of the
12  * software, derivative works or modified versions, and any portions
13  * thereof, and that both notices appear in supporting documentation.
14  *
15  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
16  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
17  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
18  *
19  * Carnegie Mellon requests users of this software to return to
20  *
21  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
22  *  School of Computer Science
23  *  Carnegie Mellon University
24  *  Pittsburgh PA 15213-3890
25  *
26  * any improvements or extensions that they make and grant Carnegie the
27  * rights to redistribute these changes.
28  */
29 
30 #ifndef _MIPS_INCLUDE_PCI_MACHDEP_H_
31 #define	_MIPS_INCLUDE_PCI_MACHDEP_H_
32 
33 /*
34  * __HAVE_PCIIDE_MACHDEP_COMPAT_INTR_ESTABLISH (if used) needs to be
35  * defined before this file is included
36  */
37 
38 /*
39  * Types provided to machine-independent PCI code
40  */
41 typedef struct mips_pci_chipset *pci_chipset_tag_t;
42 typedef u_long pcitag_t;
43 typedef u_long pci_intr_handle_t;
44 
45 /*
46  * Forward declarations.
47  */
48 struct pci_attach_args;
49 
50 /*
51  * mips-specific PCI structure and type definitions.
52  * NOT TO BE USED DIRECTLY BY MACHINE INDEPENDENT CODE.
53  */
54 struct mips_pci_chipset {
55 	void		*pc_conf_v;
56 	void		(*pc_attach_hook)(device_t, device_t,
57 			    struct pcibus_attach_args *);
58 	int		(*pc_bus_maxdevs)(void *, int);
59 	pcitag_t	(*pc_make_tag)(void *, int, int, int);
60 	void		(*pc_decompose_tag)(void *, pcitag_t, int *,
61 			    int *, int *);
62 	pcireg_t	(*pc_conf_read)(void *, pcitag_t, int);
63 	void		(*pc_conf_write)(void *, pcitag_t, int, pcireg_t);
64 
65 	void		*pc_intr_v;
66 	int		(*pc_intr_map)(const struct pci_attach_args *,
67 			    pci_intr_handle_t *);
68 	const char	*(*pc_intr_string)(void *, pci_intr_handle_t,
69 			    char *, size_t);
70 	const struct evcnt *(*pc_intr_evcnt)(void *, pci_intr_handle_t);
71 	int		(*pc_intr_setattr)(void *, pci_intr_handle_t *,
72 			    int, uint64_t);
73 	void		*(*pc_intr_establish)(void *, pci_intr_handle_t,
74 			    int, int (*)(void *), void *);
75 	void		(*pc_intr_disestablish)(void *, void *);
76 
77 	void		(*pc_conf_interrupt)(void *, int, int, int,
78 			    int, int *);
79 
80 #ifdef __HAVE_PCIIDE_MACHDEP_COMPAT_INTR_ESTABLISH
81 	void		*(*pc_pciide_compat_intr_establish)(void *,
82 			    device_t, const struct pci_attach_args *, int,
83 			    int (*)(void *), void *);
84 #endif
85 };
86 
87 /*
88  * Functions provided to machine-independent PCI code.
89  */
90 #define	pci_attach_hook(p, s, pba)					\
91     (*(pba)->pba_pc->pc_attach_hook)((p), (s), (pba))
92 #define	pci_bus_maxdevs(c, b)						\
93     (*(c)->pc_bus_maxdevs)((c)->pc_conf_v, (b))
94 #define	pci_make_tag(c, b, d, f)					\
95     (*(c)->pc_make_tag)((c)->pc_conf_v, (b), (d), (f))
96 #define	pci_decompose_tag(c, t, bp, dp, fp)				\
97     (*(c)->pc_decompose_tag)((c)->pc_conf_v, (t), (bp), (dp), (fp))
98 #define	pci_conf_read(c, t, r)						\
99     (*(c)->pc_conf_read)((c)->pc_conf_v, (t), (r))
100 #define	pci_conf_write(c, t, r, v)					\
101     (*(c)->pc_conf_write)((c)->pc_conf_v, (t), (r), (v))
102 #define	pci_intr_map(pa, ihp)						\
103     (*(pa)->pa_pc->pc_intr_map)((pa), (ihp))
104 #define	pci_intr_string(c, ih, buf, len)				\
105     (*(c)->pc_intr_string)((c)->pc_intr_v, (ih), (buf), (len))
106 #define	pci_intr_evcnt(c, ih)						\
107     (*(c)->pc_intr_evcnt)((c)->pc_intr_v, (ih))
108 #define	pci_intr_establish(c, ih, l, h, a)				\
109     (*(c)->pc_intr_establish)((c)->pc_intr_v, (ih), (l), (h), (a))
110 #define	pci_intr_disestablish(c, iv)					\
111     (*(c)->pc_intr_disestablish)((c)->pc_intr_v, (iv))
112 #define	pci_conf_interrupt(c, b, d, p, s, lp)				\
113     (*(c)->pc_conf_interrupt)((c)->pc_intr_v, (b), (d), (p), (s), (lp))
114 
115 static inline int
pci_intr_setattr(pci_chipset_tag_t pc,pci_intr_handle_t * ihp,int attr,uint64_t data)116 pci_intr_setattr(pci_chipset_tag_t pc, pci_intr_handle_t *ihp,
117     int attr, uint64_t data)
118 {
119 	if (!pc->pc_intr_setattr)
120 		return ENODEV;
121 	return pc->pc_intr_setattr(pc, ihp, attr, data);
122 }
123 
124 /*
125  * mips-specific PCI functions.
126  * NOT TO BE USED DIRECTLY BY MACHINE INDEPENDENT CODE.
127  */
128 #ifdef __HAVE_PCIIDE_MACHDEP_COMPAT_INTR_ESTABLISH
129 #define	mips_pciide_compat_intr_establish(c, d, p, ch, f, a)		\
130     ((c)->pc_pciide_compat_intr_establish == NULL ? NULL :		\
131      (*(c)->pc_pciide_compat_intr_establish)((c)->pc_conf_v, (d), (p),	\
132 	(ch), (f), (a)))
133 #endif
134 
135 #endif	/* _MIPS_INCLUDE_PCI_MACHDEP_H_ */
136