1 /* $NetBSD: ixm1200_pci.c,v 1.13 2018/11/16 15:06:23 jmcneill Exp $ */
2 #define PCI_DEBUG
3 /*
4 * Copyright (c) 2002, 2003
5 * Ichiro FUKUHARA <ichiro@ichiro.org>.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY ICHIRO FUKUHARA ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL ICHIRO FUKUHARA OR THE VOICES IN HIS HEAD BE LIABLE FOR
21 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30 #include <sys/cdefs.h>
31 __KERNEL_RCSID(0, "$NetBSD: ixm1200_pci.c,v 1.13 2018/11/16 15:06:23 jmcneill Exp $");
32
33 /*
34 * IXM1200 PCI interrupt support.
35 */
36
37 #include <sys/param.h>
38 #include <sys/systm.h>
39 #include <sys/device.h>
40
41 #include <machine/autoconf.h>
42 #include <sys/bus.h>
43
44 #include <evbarm/ixm1200/ixm1200reg.h>
45 #include <evbarm/ixm1200/ixm1200var.h>
46
47 #include <arm/ixp12x0/ixp12x0reg.h>
48 #include <arm/ixp12x0/ixp12x0var.h>
49
50 #include <arm/ixp12x0/ixp12x0_pcireg.h>
51
52 #include <dev/pci/pcidevs.h>
53 #include <dev/pci/ppbreg.h>
54
55 int ixm1200_pci_intr_map(const struct pci_attach_args *, pci_intr_handle_t *);
56 const char *ixm1200_pci_intr_string(void *, pci_intr_handle_t, char *, size_t);
57 const struct evcnt *ixm1200_pci_intr_evcnt(void *, pci_intr_handle_t);
58 void *ixm1200_pci_intr_establish(void *, pci_intr_handle_t, int,
59 int (*func)(void *), void *, const char *);
60 void ixm1200_pci_intr_disestablish(void *, void *);
61
62 void
ixm1200_pci_init(pci_chipset_tag_t pc,void * cookie)63 ixm1200_pci_init(pci_chipset_tag_t pc, void *cookie)
64 {
65 pc->pc_intr_v = cookie;
66 pc->pc_intr_map = ixm1200_pci_intr_map;
67 pc->pc_intr_string = ixm1200_pci_intr_string;
68 pc->pc_intr_evcnt = ixm1200_pci_intr_evcnt;
69 pc->pc_intr_establish = ixm1200_pci_intr_establish;
70 pc->pc_intr_disestablish = ixm1200_pci_intr_disestablish;
71 }
72
73 int
ixm1200_pci_intr_map(const struct pci_attach_args * pa,pci_intr_handle_t * ihp)74 ixm1200_pci_intr_map(const struct pci_attach_args *pa, pci_intr_handle_t *ihp)
75 {
76 #ifdef PCI_DEBUG
77 void *v = pa->pa_pc;
78 int pin = pa->pa_intrpin;
79 int line = pa->pa_intrline;
80 int dev=pa->pa_device;
81 pcitag_t intrtag = pa->pa_intrtag;
82
83 printf("ixm1200_pci_intr_map: v=%p, tag=%08lx intrpin=%d line=%d dev=%d\n",
84 v, intrtag, pin, line, dev);
85 #endif
86
87 /* ixp12x0 has only one interrupt line for PCI */
88 *ihp = IXPPCI_INTR_PIL;
89 return (0);
90 }
91
92 const char *
ixm1200_pci_intr_string(void * v,pci_intr_handle_t ih,char * buf,size_t len)93 ixm1200_pci_intr_string(void *v, pci_intr_handle_t ih, char *buf, size_t len)
94 {
95 snprintf(buf, len, "IXM1200 irq %" PRIu64, ih);
96 return buf;
97 }
98
99 const struct evcnt *
ixm1200_pci_intr_evcnt(void * v,pci_intr_handle_t ih)100 ixm1200_pci_intr_evcnt(void *v, pci_intr_handle_t ih)
101 {
102 return (NULL);
103 }
104
105 void *
ixm1200_pci_intr_establish(void * v,pci_intr_handle_t ih,int ipl,int (* func)(void *),void * arg,const char * xname)106 ixm1200_pci_intr_establish(void *v, pci_intr_handle_t ih, int ipl, int (*func)(void *),
107 void *arg, const char *xname)
108 {
109 #ifdef PCI_DEBUG
110 printf("ixm1200_pci_intr_establish(v=%p, irq=%d, ipl=%d, func=%p, arg=%p, xname=%s)\n",
111 v, (int) ih, ipl, func, arg, xname);
112 #endif
113
114 return (ixp12x0_intr_establish(ih, ipl, func, arg));
115 }
116
117 void
ixm1200_pci_intr_disestablish(void * v,void * cookie)118 ixm1200_pci_intr_disestablish(void *v, void *cookie)
119 {
120 #ifdef PCI_DEBUG
121 printf("ixm1200_pci_intr_disestablish(v=%p, cookie=%p)\n",
122 v, cookie);
123 #endif
124
125 ixp12x0_intr_disestablish(cookie);
126 }
127