Annotation of sys/dev/pci/if_mtd_pci.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: if_mtd_pci.c,v 1.10 2005/08/09 04:10:12 mickey Exp $ */
2:
3: /*
4: * Copyright (c) 2003 Oleg Safiullin <form@pdp11.org.ru>
5: * All rights reserved.
6: *
7: * Redistribution and use in source and binary forms, with or without
8: * modification, are permitted provided that the following conditions
9: * are met:
10: * 1. Redistributions of source code must retain the above copyright
11: * notice unmodified, this list of conditions, and the following
12: * 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 THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21: * FOR 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:
31: #include <sys/param.h>
32: #include <sys/device.h>
33: #include <sys/systm.h>
34: #include <sys/socket.h>
35:
36: #include <net/if.h>
37: #include <net/if_media.h>
38:
39: #ifdef INET
40: #include <netinet/in.h>
41: #include <netinet/if_ether.h>
42: #endif
43:
44: #include <machine/bus.h>
45:
46: #include <dev/mii/miivar.h>
47:
48: #include <dev/pci/pcidevs.h>
49: #include <dev/pci/pcireg.h>
50: #include <dev/pci/pcivar.h>
51:
52: #include <dev/ic/mtd8xxreg.h>
53: #include <dev/ic/mtd8xxvar.h>
54:
55: static int mtd_pci_match(struct device *, void *, void *);
56: static void mtd_pci_attach(struct device *, struct device *, void *);
57:
58:
59: struct cfattach mtd_pci_ca = {
60: sizeof(struct mtd_softc), mtd_pci_match, mtd_pci_attach
61: };
62:
63: const static struct pci_matchid mtd_pci_devices[] = {
64: { PCI_VENDOR_MYSON, PCI_PRODUCT_MYSON_MTD800 },
65: { PCI_VENDOR_MYSON, PCI_PRODUCT_MYSON_MTD803 },
66: { PCI_VENDOR_MYSON, PCI_PRODUCT_MYSON_MTD891 },
67: };
68:
69:
70: static int
71: mtd_pci_match(struct device *parent, void *match, void *aux)
72: {
73: return (pci_matchbyid((struct pci_attach_args *)aux, mtd_pci_devices,
74: sizeof(mtd_pci_devices) / sizeof(mtd_pci_devices[0])));
75: }
76:
77:
78: static void
79: mtd_pci_attach(struct device *parent, struct device *self, void *aux)
80: {
81: struct mtd_softc *sc = (void *)self;
82: struct pci_attach_args *pa = aux;
83: pci_intr_handle_t ih;
84: const char *intrstr = NULL;
85: u_int32_t command;
86: bus_size_t iosize;
87:
88: sc->sc_devid = PCI_PRODUCT(pa->pa_id);
89: command = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
90: if (sc->sc_devid == PCI_PRODUCT_MYSON_MTD800 &&
91: pci_conf_read(pa->pa_pc, pa->pa_tag, MTD_PCI_LOIO) & 0x300) {
92: pa->pa_flags &= ~PCI_FLAGS_IO_ENABLED;
93: command &= ~PCI_COMMAND_IO_ENABLE;
94: }
95: pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command);
96:
97: command = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
98: if (command & PCI_COMMAND_MEM_ENABLE) {
99: if (pci_mapreg_map(pa, MTD_PCI_LOMEM, PCI_MAPREG_TYPE_MEM, 0,
100: &sc->sc_bust, &sc->sc_bush, NULL, &iosize, 0)) {
101: printf(": can't map mem space\n");
102: return;
103: }
104: } else {
105: if (pci_mapreg_map(pa, MTD_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0,
106: &sc->sc_bust, &sc->sc_bush, NULL, &iosize, 0)) {
107: printf(": can't map io space\n");
108: return;
109: }
110: }
111:
112: /*
113: * Allocate our interrupt.
114: */
115: if (pci_intr_map(pa, &ih)) {
116: printf(": couldn't map interrupt\n");
117: bus_space_unmap(sc->sc_bust, sc->sc_bush, iosize);
118: return;
119: }
120:
121: intrstr = pci_intr_string(pa->pa_pc, ih);
122: if (pci_intr_establish(pa->pa_pc, ih, IPL_NET, mtd_intr, sc,
123: self->dv_xname) == NULL) {
124: printf(": couldn't establish interrupt");
125: if (intrstr != NULL)
126: printf(" at %s", intrstr);
127: printf("\n");
128: bus_space_unmap(sc->sc_bust, sc->sc_bush, iosize);
129: return;
130: }
131: printf(": %s", intrstr);
132:
133: sc->sc_dmat = pa->pa_dmat;
134: mtd_attach(sc);
135: }
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