1 /* $NetBSD: puc.c,v 1.7 2000/07/29 17:43:38 jlam Exp $ */
2
3 /*-
4 * SPDX-License-Identifier: BSD-2-Clause AND BSD-3-Clause
5 *
6 * Copyright (c) 2002 JF Hay. All rights reserved.
7 * Copyright (c) 2000 M. Warner Losh <imp@FreeBSD.org>
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 */
30
31 /*-
32 * Copyright (c) 1996, 1998, 1999
33 * Christopher G. Demetriou. All rights reserved.
34 *
35 * Redistribution and use in source and binary forms, with or without
36 * modification, are permitted provided that the following conditions
37 * are met:
38 * 1. Redistributions of source code must retain the above copyright
39 * notice, this list of conditions and the following disclaimer.
40 * 2. Redistributions in binary form must reproduce the above copyright
41 * notice, this list of conditions and the following disclaimer in the
42 * documentation and/or other materials provided with the distribution.
43 * 3. All advertising materials mentioning features or use of this software
44 * must display the following acknowledgement:
45 * This product includes software developed by Christopher G. Demetriou
46 * for the NetBSD Project.
47 * 4. The name of the author may not be used to endorse or promote products
48 * derived from this software without specific prior written permission
49 *
50 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
51 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
52 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
53 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
54 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
55 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
56 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
57 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
58 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
59 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
60 */
61
62 #include <sys/param.h>
63 #include <sys/systm.h>
64 #include <sys/kernel.h>
65 #include <sys/module.h>
66 #include <sys/bus.h>
67 #include <sys/conf.h>
68 #include <sys/malloc.h>
69 #include <sys/sysctl.h>
70
71 #include <machine/bus.h>
72 #include <machine/resource.h>
73 #include <sys/rman.h>
74
75 #include <dev/pci/pcireg.h>
76 #include <dev/pci/pcivar.h>
77
78 #include <dev/puc/puc_cfg.h>
79 #include <dev/puc/puc_bfe.h>
80 #include <dev/puc/pucdata.c>
81
82 static int puc_msi_disable;
83 SYSCTL_INT(_hw_puc, OID_AUTO, msi_disable, CTLFLAG_RDTUN,
84 &puc_msi_disable, 0, "Disable use of MSI interrupts by puc(9)");
85
86 static const struct puc_cfg *
puc_pci_match(device_t dev,const struct puc_cfg * desc)87 puc_pci_match(device_t dev, const struct puc_cfg *desc)
88 {
89 uint16_t vendor, device;
90 uint16_t subvendor, subdevice;
91
92 vendor = pci_get_vendor(dev);
93 device = pci_get_device(dev);
94 subvendor = pci_get_subvendor(dev);
95 subdevice = pci_get_subdevice(dev);
96
97 while (desc->vendor != 0xffff) {
98 if (desc->vendor == vendor && desc->device == device) {
99 /* exact match */
100 if (desc->subvendor == subvendor &&
101 desc->subdevice == subdevice)
102 return (desc);
103 /* wildcard match */
104 if (desc->subvendor == 0xffff)
105 return (desc);
106 }
107 desc++;
108 }
109
110 /* no match */
111 return (NULL);
112 }
113
114 static int
puc_pci_probe(device_t dev)115 puc_pci_probe(device_t dev)
116 {
117 const struct puc_cfg *desc;
118
119 if ((pci_read_config(dev, PCIR_HDRTYPE, 1) & PCIM_HDRTYPE) != 0)
120 return (ENXIO);
121
122 desc = puc_pci_match(dev, puc_pci_devices);
123 if (desc == NULL)
124 return (ENXIO);
125 return (puc_bfe_probe(dev, desc));
126 }
127
128 static int
puc_pci_attach(device_t dev)129 puc_pci_attach(device_t dev)
130 {
131 struct puc_softc *sc;
132 int error, count;
133
134 sc = device_get_softc(dev);
135
136 if (!puc_msi_disable) {
137 count = 1;
138
139 if (pci_alloc_msi(dev, &count) == 0) {
140 sc->sc_msi = 1;
141 sc->sc_irid = 1;
142 }
143 }
144
145 error = puc_bfe_attach(dev);
146
147 if (error != 0 && sc->sc_msi)
148 pci_release_msi(dev);
149
150 return (error);
151 }
152
153 static int
puc_pci_detach(device_t dev)154 puc_pci_detach(device_t dev)
155 {
156 struct puc_softc *sc;
157 int error;
158
159 sc = device_get_softc(dev);
160
161 error = puc_bfe_detach(dev);
162
163 if (error != 0)
164 return (error);
165
166 if (sc->sc_msi)
167 error = pci_release_msi(dev);
168
169 return (error);
170 }
171
172 static device_method_t puc_pci_methods[] = {
173 /* Device interface */
174 DEVMETHOD(device_probe, puc_pci_probe),
175 DEVMETHOD(device_attach, puc_pci_attach),
176 DEVMETHOD(device_detach, puc_pci_detach),
177
178 DEVMETHOD(bus_alloc_resource, puc_bus_alloc_resource),
179 DEVMETHOD(bus_release_resource, puc_bus_release_resource),
180 DEVMETHOD(bus_get_resource, puc_bus_get_resource),
181 DEVMETHOD(bus_read_ivar, puc_bus_read_ivar),
182 DEVMETHOD(bus_setup_intr, puc_bus_setup_intr),
183 DEVMETHOD(bus_teardown_intr, puc_bus_teardown_intr),
184 DEVMETHOD(bus_print_child, puc_bus_print_child),
185 DEVMETHOD(bus_child_pnpinfo, puc_bus_child_pnpinfo),
186 DEVMETHOD(bus_child_location, puc_bus_child_location),
187
188 DEVMETHOD_END
189 };
190
191 static driver_t puc_pci_driver = {
192 puc_driver_name,
193 puc_pci_methods,
194 sizeof(struct puc_softc),
195 };
196
197 DRIVER_MODULE(puc, pci, puc_pci_driver, 0, 0);
198 MODULE_PNP_INFO("U16:vendor;U16:device;U16:#;U16:#;D:#", pci, puc,
199 puc_pci_devices, nitems(puc_pci_devices) - 1);
200