if_mtd_pci.c revision 1.8 
1/*	$OpenBSD: if_mtd_pci.c,v 1.8 2003/09/29 04:10:29 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
55static int mtd_pci_match(struct device *, void *, void *);
56static void mtd_pci_attach(struct device *, struct device *, void *);
57
58
59struct cfattach mtd_pci_ca = {
60	sizeof(struct mtd_softc), mtd_pci_match, mtd_pci_attach
61};
62
63const 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
70static int
71mtd_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
78static void
79mtd_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(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
90	command |= PCI_COMMAND_MASTER_ENABLE;
91	if (sc->sc_devid == PCI_PRODUCT_MYSON_MTD800 &&
92	    pci_conf_read(pa->pa_pc, pa->pa_tag, MTD_PCI_LOIO) & 0x300) {
93		pa->pa_flags &= ~PCI_FLAGS_IO_ENABLED;
94		command &= ~PCI_COMMAND_IO_ENABLE;
95	}
96	pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command);
97
98	command = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
99	if (command & PCI_COMMAND_MEM_ENABLE) {
100		if (pci_mapreg_map(pa, MTD_PCI_LOMEM, PCI_MAPREG_TYPE_MEM, 0,
101		    &sc->sc_bust, &sc->sc_bush, NULL, &iosize, 0)) {
102			printf(": can't map mem space\n");
103			return;
104		}
105	} else {
106		if (pci_mapreg_map(pa, MTD_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0,
107		    &sc->sc_bust, &sc->sc_bush, NULL, &iosize, 0)) {
108			printf(": can't map io space\n");
109			return;
110		}
111	}
112
113	/*
114	 * Allocate our interrupt.
115	 */
116	if (pci_intr_map(pa, &ih)) {
117		printf(": couldn't map interrupt\n");
118		bus_space_unmap(sc->sc_bust, sc->sc_bush, iosize);
119		return;
120	}
121
122	intrstr = pci_intr_string(pa->pa_pc, ih);
123	if (pci_intr_establish(pa->pa_pc, ih, IPL_NET, mtd_intr, sc,
124	    self->dv_xname) == NULL) {
125		printf(": couldn't establish interrupt");
126		if (intrstr != NULL)
127			printf(" at %s", intrstr);
128		printf("\n");
129		bus_space_unmap(sc->sc_bust, sc->sc_bush, iosize);
130		return;
131	}
132	printf(": %s", intrstr);
133
134	sc->sc_dmat = pa->pa_dmat;
135	mtd_attach(sc);
136}
137