FreeBSD/Linux Kernel Cross Reference
sys/dev/si/si_pci.c
1 /*-
2 * Device driver for Specialix range (SI/XIO) of serial line multiplexors.
3 *
4 * Copyright (C) 2000, Peter Wemm <peter@netplex.com.au>
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 * notices, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notices, 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 ``AS IS'' AND ANY EXPRESS OR IMPLIED
16 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
17 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
18 * NO EVENT SHALL THE AUTHORS BE LIABLE.
19 */
20
21 #include <sys/cdefs.h>
22 __FBSDID("$FreeBSD$");
23
24 #include <sys/param.h>
25 #include <sys/systm.h>
26 #include <sys/kernel.h>
27 #include <sys/module.h>
28 #include <sys/bus.h>
29 #include <machine/bus.h>
30 #include <sys/rman.h>
31 #include <machine/resource.h>
32
33 #include <dev/si/sireg.h>
34 #include <dev/si/sivar.h>
35
36 #include <dev/pci/pcivar.h>
37
38 static int
39 si_pci_probe(device_t dev)
40 {
41 const char *desc = NULL;
42
43 switch (pci_get_devid(dev)) {
44 case 0x400011cb:
45 desc = "Specialix SI/XIO PCI host card";
46 break;
47 case 0x200011cb:
48 if (pci_read_config(dev, SIJETSSIDREG, 4) == 0x020011cb)
49 desc = "Specialix SX PCI host card";
50 break;
51 }
52 if (desc) {
53 device_set_desc(dev, desc);
54 return 0;
55 }
56 return ENXIO;
57 }
58
59 static int
60 si_pci_attach(device_t dev)
61 {
62 struct si_softc *sc;
63 void *ih;
64 int error;
65
66 error = 0;
67 ih = NULL;
68 sc = device_get_softc(dev);
69
70 switch (pci_get_devid(dev)) {
71 case 0x400011cb:
72 sc->sc_type = SIPCI;
73 sc->sc_mem_rid = SIPCIBADR;
74 break;
75 case 0x200011cb:
76 sc->sc_type = SIJETPCI;
77 sc->sc_mem_rid = SIJETBADR;
78 break;
79 }
80
81 sc->sc_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
82 &sc->sc_mem_rid,
83 RF_ACTIVE);
84 if (!sc->sc_mem_res) {
85 device_printf(dev, "couldn't map memory\n");
86 goto fail;
87 }
88 sc->sc_paddr = (caddr_t)rman_get_start(sc->sc_mem_res);
89 sc->sc_maddr = rman_get_virtual(sc->sc_mem_res);
90
91 sc->sc_irq_rid = 0;
92 sc->sc_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ,
93 &sc->sc_irq_rid,
94 RF_ACTIVE | RF_SHAREABLE);
95 if (!sc->sc_irq_res) {
96 device_printf(dev, "couldn't map interrupt\n");
97 goto fail;
98 }
99 sc->sc_irq = rman_get_start(sc->sc_irq_res);
100 error = bus_setup_intr(dev, sc->sc_irq_res, INTR_TYPE_TTY,
101 si_intr, sc, &ih);
102 if (error) {
103 device_printf(dev, "could not activate interrupt\n");
104 goto fail;
105 }
106
107 error = siattach(dev);
108 if (error)
109 goto fail;
110 return (0); /* success */
111
112 fail:
113 if (error == 0)
114 error = ENXIO;
115 if (sc->sc_irq_res) {
116 if (ih)
117 bus_teardown_intr(dev, sc->sc_irq_res, ih);
118 bus_release_resource(dev, SYS_RES_IRQ,
119 sc->sc_irq_rid, sc->sc_irq_res);
120 sc->sc_irq_res = 0;
121 }
122 if (sc->sc_mem_res) {
123 bus_release_resource(dev, SYS_RES_MEMORY,
124 sc->sc_mem_rid, sc->sc_mem_res);
125 sc->sc_mem_res = 0;
126 }
127 return (error);
128 }
129
130 static device_method_t si_pci_methods[] = {
131 /* Device interface */
132 DEVMETHOD(device_probe, si_pci_probe),
133 DEVMETHOD(device_attach, si_pci_attach),
134
135 { 0, 0 }
136 };
137
138 static driver_t si_pci_driver = {
139 "si",
140 si_pci_methods,
141 sizeof(struct si_softc),
142 };
143
144 DRIVER_MODULE(si, pci, si_pci_driver, si_devclass, 0, 0);
Cache object: d9c3f0273dd7f6df1736b7d4ac6b5097
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