if_vx_pci.c revision 46814 
1/*
2 * Copyright (C) 1996 Naoki Hamada <nao@tom-yam.or.jp>
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 * 3. Neither the name of the author nor the names of any co-contributors
14 *    may be used to endorse or promote products derived from this software
15 *    without specific prior written permission.
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 * $FreeBSD: head/sys/dev/vx/if_vx_pci.c 46814 1999-05-09 17:12:25Z peter $
30 */
31
32#include "pci.h"
33#if NPCI > 0
34
35#include "vx.h"
36#if NVX > 0
37
38#include <sys/param.h>
39#include <sys/systm.h>
40#include <sys/kernel.h>
41#include <sys/socket.h>
42
43#include <net/if.h>
44#include <net/if_arp.h>
45
46#include <pci/pcivar.h>
47
48#include <dev/vx/if_vxreg.h>
49
50static void vx_pci_shutdown(int, void *);
51static const char *vx_pci_probe(pcici_t, pcidi_t);
52static void vx_pci_attach(pcici_t, int unit);
53
54static void
55vx_pci_shutdown(
56	int howto,
57	void *sc)
58{
59   vxstop(sc);
60   vxfree(sc);
61}
62
63static const char*
64vx_pci_probe(
65	pcici_t config_id,
66	pcidi_t device_id)
67{
68   if(device_id == 0x590010b7ul)
69      return "3COM 3C590 Etherlink III PCI";
70   if(device_id == 0x595010b7ul || device_id == 0x595110b7ul ||
71	device_id == 0x595210b7ul)
72      return "3COM 3C595 Fast Etherlink III PCI";
73	/*
74	 * The (Fast) Etherlink XL adapters are now supported by
75	 * the xl driver, which uses bus master DMA and is much
76	 * faster. (And which also supports the 3c905B.
77	 */
78#ifdef VORTEX_ETHERLINK_XL
79   if(device_id == 0x900010b7ul || device_id == 0x900110b7ul)
80      return "3COM 3C900 Etherlink XL PCI";
81   if(device_id == 0x905010b7ul || device_id == 0x905110b7ul)
82      return "3COM 3C905 Fast Etherlink XL PCI";
83#endif
84   return NULL;
85}
86
87static void
88vx_pci_attach(
89	pcici_t config_id,
90	int unit)
91{
92    struct vx_softc *sc;
93
94    if (unit >= NVX) {
95       printf("vx%d: not configured; kernel is built for only %d device%s.\n",
96          unit, NVX, NVX == 1 ? "" : "s");
97       return;
98    }
99
100    if ((sc = vxalloc(unit)) == NULL) {
101	return;
102    }
103
104    sc->vx_io_addr = pci_conf_read(config_id, 0x10) & 0xffffffe0;
105
106    if (vxattach(sc) == 0) {
107	return;
108    }
109
110    /* defect check for 3C590 */
111    if ((pci_conf_read(config_id, 0) >> 16) == 0x5900) {
112	GO_WINDOW(0);
113	if (vxbusyeeprom(sc))
114	    return;
115	outw(BASE + VX_W0_EEPROM_COMMAND, EEPROM_CMD_RD | EEPROM_SOFT_INFO_2);
116	if (vxbusyeeprom(sc))
117	    return;
118	if (!(inw(BASE + VX_W0_EEPROM_DATA) & NO_RX_OVN_ANOMALY)) {
119	    printf("Warning! Defective early revision adapter!\n");
120	}
121    }
122
123    /*
124     * Add shutdown hook so that DMA is disabled prior to reboot. Not
125     * doing do could allow DMA to corrupt kernel memory during the
126     * reboot before the driver initializes.
127     */
128    at_shutdown(vx_pci_shutdown, sc, SHUTDOWN_POST_SYNC);
129
130    pci_map_int(config_id, vxintr, (void *) sc, &net_imask);
131}
132
133static struct pci_device vxdevice = {
134    "vx",
135    vx_pci_probe,
136    vx_pci_attach,
137    &vx_count,
138    NULL
139};
140
141COMPAT_PCI_DRIVER (vx, vxdevice);
142
143#endif	/* NVX */
144#endif	/* NPCI */
145