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