1 /*-
2 * Copyright (c) 2014, 2015 Marcel Moolenaar
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. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26 #include <sys/param.h>
27 #include <sys/systm.h>
28 #include <sys/bus.h>
29 #include <sys/conf.h>
30 #include <sys/kernel.h>
31 #include <sys/module.h>
32 #include <machine/bus.h>
33 #include <sys/rman.h>
34 #include <machine/resource.h>
35
36 #include <dev/pci/pcireg.h>
37 #include <dev/pci/pcivar.h>
38
39 #include <dev/proto/proto.h>
40
41 static int proto_pci_probe(device_t dev);
42 static int proto_pci_attach(device_t dev);
43
44 static device_method_t proto_pci_methods[] = {
45 /* Device interface */
46 DEVMETHOD(device_probe, proto_pci_probe),
47 DEVMETHOD(device_attach, proto_pci_attach),
48 DEVMETHOD(device_detach, proto_detach),
49 DEVMETHOD_END
50 };
51
52 static driver_t proto_pci_driver = {
53 proto_driver_name,
54 proto_pci_methods,
55 sizeof(struct proto_softc),
56 };
57
58 static char proto_pci_prefix[] = "pci";
59 static char **proto_pci_devnames;
60
61 static int
proto_pci_probe(device_t dev)62 proto_pci_probe(device_t dev)
63 {
64 if ((pci_read_config(dev, PCIR_HDRTYPE, 1) & PCIM_HDRTYPE) != 0)
65 return (ENXIO);
66
67 device_set_descf(dev, "%s%d:%d:%d:%d", proto_pci_prefix,
68 pci_get_domain(dev), pci_get_bus(dev), pci_get_slot(dev),
69 pci_get_function(dev));
70 return (proto_probe(dev, proto_pci_prefix, &proto_pci_devnames));
71 }
72
73 static int
proto_pci_attach(device_t dev)74 proto_pci_attach(device_t dev)
75 {
76 struct proto_softc *sc;
77 struct resource *res;
78 uint32_t val;
79 int bar, rid, type;
80
81 sc = device_get_softc(dev);
82
83 proto_add_resource(sc, PROTO_RES_PCICFG, 0, NULL);
84 proto_add_resource(sc, PROTO_RES_BUSDMA, 0, NULL);
85
86 for (bar = 0; bar < PCIR_MAX_BAR_0; bar++) {
87 rid = PCIR_BAR(bar);
88 val = pci_read_config(dev, rid, 4);
89 type = (PCI_BAR_IO(val)) ? SYS_RES_IOPORT : SYS_RES_MEMORY;
90 res = bus_alloc_resource_any(dev, type, &rid, RF_ACTIVE);
91 if (res == NULL)
92 continue;
93 proto_add_resource(sc, type, rid, res);
94 if (type == SYS_RES_IOPORT)
95 continue;
96 /* Skip over adjacent BAR for 64-bit memory BARs. */
97 if ((val & PCIM_BAR_MEM_TYPE) == PCIM_BAR_MEM_64)
98 bar++;
99 }
100
101 rid = 0;
102 type = SYS_RES_IRQ;
103 res = bus_alloc_resource_any(dev, type, &rid, RF_ACTIVE | RF_SHAREABLE);
104 if (res != NULL)
105 proto_add_resource(sc, type, rid, res);
106 return (proto_attach(dev));
107 }
108
109 DRIVER_MODULE(proto, pci, proto_pci_driver, NULL, NULL);
110