xref: /openbsd-src/sys/arch/arm/include/pci_machdep.h (revision 919fac9de7a640c17e71e8b0559cc8916b92e9b1)
1 /*	$OpenBSD: pci_machdep.h,v 1.18 2022/01/06 08:46:50 kettenis Exp $ */
2 
3 /*
4  * Copyright (c) 2003-2004 Opsycon AB  (www.opsycon.se / www.opsycon.com)
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
16  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
19  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  *
27  */
28 
29 typedef struct arm32_pci_chipset *pci_chipset_tag_t;
30 typedef uint64_t pcitag_t;
31 
32 #define PCITAG_NODE(x)		((x) >> 32)
33 #define PCITAG_OFFSET(x)	((x) & 0xffffffff)
34 
35 typedef u_long pci_intr_handle_t;
36 
37 struct pci_attach_args;
38 
39 /*
40  * arm32-specific PCI structure and type definitions.
41  * NOT TO BE USED DIRECTLY BY MACHINE INDEPENDENT CODE.
42  */
43 struct arm32_pci_chipset {
44 	void		*pc_conf_v;
45 	void		(*pc_attach_hook)(struct device *,
46 			    struct device *, struct pcibus_attach_args *);
47 	int		(*pc_bus_maxdevs)(void *, int);
48 	pcitag_t	(*pc_make_tag)(void *, int, int, int);
49 	void		(*pc_decompose_tag)(void *, pcitag_t, int *,
50 			    int *, int *);
51 	int		(*pc_conf_size)(void *, pcitag_t);
52 	pcireg_t	(*pc_conf_read)(void *, pcitag_t, int);
53 	void		(*pc_conf_write)(void *, pcitag_t, int, pcireg_t);
54 	int		(*pc_probe_device_hook)(void *, struct pci_attach_args *);
55 
56 	void		*pc_intr_v;
57 	int		(*pc_intr_map)(struct pci_attach_args *,
58 			    pci_intr_handle_t *);
59 	int		(*pc_intr_map_msi)(struct pci_attach_args *,
60 			    pci_intr_handle_t *);
61 	int		(*pc_intr_map_msix)(struct pci_attach_args *,
62 			    int, pci_intr_handle_t *);
63 	const char	*(*pc_intr_string)(void *, pci_intr_handle_t);
64 	void		*(*pc_intr_establish)(void *, pci_intr_handle_t,
65 			    int, struct cpu_info *, int (*)(void *), void *,
66 			    char *);
67 	void		(*pc_intr_disestablish)(void *, void *);
68 };
69 
70 /*
71  * Functions provided to machine-independent PCI code.
72  */
73 #define	pci_attach_hook(p, s, pba)					\
74     (*(pba)->pba_pc->pc_attach_hook)((p), (s), (pba))
75 #define	pci_bus_maxdevs(c, b)						\
76     (*(c)->pc_bus_maxdevs)((c)->pc_conf_v, (b))
77 #define	pci_make_tag(c, b, d, f)					\
78     (*(c)->pc_make_tag)((c)->pc_conf_v, (b), (d), (f))
79 #define	pci_decompose_tag(c, t, bp, dp, fp)				\
80     (*(c)->pc_decompose_tag)((c)->pc_conf_v, (t), (bp), (dp), (fp))
81 #define	pci_conf_size(c, t)						\
82     (*(c)->pc_conf_size)((c)->pc_conf_v, (t))
83 #define	pci_conf_read(c, t, r)						\
84     (*(c)->pc_conf_read)((c)->pc_conf_v, (t), (r))
85 #define	pci_conf_write(c, t, r, v)					\
86     (*(c)->pc_conf_write)((c)->pc_conf_v, (t), (r), (v))
87 #define	pci_probe_device_hook(c, a)					\
88     (*(c)->pc_probe_device_hook)((c)->pc_conf_v, (a))
89 #define	pci_intr_map(c, ihp)						\
90     (*(c)->pa_pc->pc_intr_map)((c), (ihp))
91 #define	pci_intr_map_msi(c, ihp)					\
92     (*(c)->pa_pc->pc_intr_map_msi)((c), (ihp))
93 #define	pci_intr_map_msix(c, vec, ihp)					\
94     (*(c)->pa_pc->pc_intr_map_msix)((c), (vec), (ihp))
95 #define	pci_intr_string(c, ih)						\
96     (*(c)->pc_intr_string)((c)->pc_intr_v, (ih))
97 #define	pci_intr_establish(c, ih, l, h, a, nm)				\
98     (*(c)->pc_intr_establish)((c)->pc_intr_v, (ih), (l), NULL, (h), (a),\
99 	(nm))
100 #define	pci_intr_establish_cpu(c, ih, l, ci, h, a, nm)			\
101     (*(c)->pc_intr_establish)((c)->pc_intr_v, (ih), (l), (ci), (h), (a),\
102 	(nm))
103 #define	pci_intr_disestablish(c, iv)					\
104     (*(c)->pc_intr_disestablish)((c)->pc_intr_v, (iv))
105 
106 #define	pci_min_powerstate(c, t)	(PCI_PMCSR_STATE_D3)
107 #define	pci_set_powerstate_md(c, t, s, p)
108 
109 #define	pci_dev_postattach(a, b)
110