FreeBSD/Linux Kernel Cross Reference
sys/dev/pdq/if_fpa.c
1 /*-
2 * Copyright (c) 1995, 1996 Matt Thomas <matt@3am-software.com>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. The name of the author may not be used to endorse or promote products
11 * derived from this software without specific prior written permission
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 *
24 *
25 */
26
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD: releng/11.1/sys/dev/pdq/if_fpa.c 257176 2013-10-26 17:58:36Z glebius $");
29
30 /*
31 * DEC PDQ FDDI Controller; code for BSD derived operating systems
32 *
33 * This module supports the DEC DEFPA PCI FDDI Controller
34 */
35
36 #include <sys/param.h>
37 #include <sys/systm.h>
38 #include <sys/kernel.h>
39 #include <sys/socket.h>
40
41 #include <sys/module.h>
42 #include <sys/bus.h>
43
44 #include <machine/bus.h>
45 #include <machine/resource.h>
46 #include <sys/rman.h>
47
48 #include <net/if.h>
49 #include <net/if_var.h>
50 #include <net/if_media.h>
51 #include <net/fddi.h>
52
53 #include <dev/pci/pcivar.h>
54 #include <dev/pci/pcireg.h>
55
56 #include <dev/pdq/pdq_freebsd.h>
57 #include <dev/pdq/pdqreg.h>
58
59 #define DEC_VENDORID 0x1011
60 #define DEFPA_CHIPID 0x000F
61
62 #define DEFPA_LATENCY 0x88
63
64 #define PCI_CFLT 0x0C /* Configuration Latency */
65 #define PCI_CBMA 0x10 /* Configuration Base Memory Address */
66 #define PCI_CBIO 0x14 /* Configuration Base I/O Address */
67
68 static int pdq_pci_probe (device_t);
69 static int pdq_pci_attach (device_t);
70 static int pdq_pci_detach (device_t);
71 static int pdq_pci_shutdown (device_t);
72 static void pdq_pci_ifintr (void *);
73
74 static void
75 pdq_pci_ifintr(void *arg)
76 {
77 pdq_softc_t *sc;
78
79 sc = arg;
80
81 PDQ_LOCK(sc);
82 (void) pdq_interrupt(sc->sc_pdq);
83 PDQ_UNLOCK(sc);
84
85 return;
86 }
87
88 /*
89 * This is the PCI configuration support.
90 */
91 static int
92 pdq_pci_probe(device_t dev)
93 {
94 if (pci_get_vendor(dev) == DEC_VENDORID &&
95 pci_get_device(dev) == DEFPA_CHIPID) {
96 device_set_desc(dev, "Digital DEFPA PCI FDDI Controller");
97 return (BUS_PROBE_DEFAULT);
98 }
99
100 return (ENXIO);
101 }
102
103 static int
104 pdq_pci_attach(device_t dev)
105 {
106 pdq_softc_t *sc;
107 u_int32_t command;
108 int error;
109
110 sc = device_get_softc(dev);
111
112 sc->dev = dev;
113
114 /*
115 * Map control/status registers.
116 */
117 pci_enable_busmaster(dev);
118
119 command = pci_read_config(dev, PCIR_LATTIMER, 1);
120 if (command < DEFPA_LATENCY) {
121 command = DEFPA_LATENCY;
122 pci_write_config(dev, PCIR_LATTIMER, command, 1);
123 }
124
125 sc->mem_rid = PCI_CBMA;
126 sc->mem_type = SYS_RES_MEMORY;
127 sc->mem = bus_alloc_resource_any(dev, sc->mem_type, &sc->mem_rid,
128 RF_ACTIVE);
129 if (!sc->mem) {
130 device_printf(dev, "Unable to allocate I/O space resource.\n");
131 error = ENXIO;
132 goto bad;
133 }
134 sc->mem_bsh = rman_get_bushandle(sc->mem);
135 sc->mem_bst = rman_get_bustag(sc->mem);
136
137 sc->irq_rid = 0;
138 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
139 RF_SHAREABLE | RF_ACTIVE);
140 if (!sc->irq) {
141 device_printf(dev, "Unable to allocate interrupt resource.\n");
142 error = ENXIO;
143 goto bad;
144 }
145
146 error = pdq_ifattach(sc, sc->sc_pdq->pdq_hwaddr.lanaddr_bytes, PDQ_DEFPA);
147 if (error)
148 goto bad;
149
150 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE, NULL,
151 pdq_pci_ifintr, sc, &sc->irq_ih);
152 if (error) {
153 device_printf(dev, "Failed to setup interrupt handler.\n");
154 pdq_ifdetach(sc);
155 return (error);
156 }
157
158
159 return (0);
160 bad:
161 pdq_free(dev);
162 return (error);
163 }
164
165 static int
166 pdq_pci_detach (dev)
167 device_t dev;
168 {
169 pdq_softc_t *sc;
170
171 sc = device_get_softc(dev);
172 pdq_ifdetach(sc);
173
174 return (0);
175 }
176
177 static int
178 pdq_pci_shutdown(device_t dev)
179 {
180 pdq_softc_t *sc;
181
182 sc = device_get_softc(dev);
183 PDQ_LOCK(sc);
184 pdq_hwreset(sc->sc_pdq);
185 PDQ_UNLOCK(sc);
186
187 return (0);
188 }
189
190 static device_method_t pdq_pci_methods[] = {
191 /* Device interface */
192 DEVMETHOD(device_probe, pdq_pci_probe),
193 DEVMETHOD(device_attach, pdq_pci_attach),
194 DEVMETHOD(device_detach, pdq_pci_detach),
195 DEVMETHOD(device_shutdown, pdq_pci_shutdown),
196
197 { 0, 0 }
198 };
199
200 static driver_t pdq_pci_driver = {
201 "fpa",
202 pdq_pci_methods,
203 sizeof(pdq_softc_t),
204 };
205
206 DRIVER_MODULE(fpa, pci, pdq_pci_driver, pdq_devclass, 0, 0);
207 MODULE_DEPEND(fpa, pci, 1, 1, 1);
208 MODULE_DEPEND(fpa, fddi, 1, 1, 1);
Cache object: ae5cb6becad13e454ec7d3f0ee10f3ea
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