FreeBSD/Linux Kernel Cross Reference
sys/dev/vx/if_vx_pci.c
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 * $FreeBSD$
30 */
31
32 #include "vx.h"
33
34 #include <sys/param.h>
35 #include <sys/systm.h>
36 #include <sys/eventhandler.h>
37 #include <sys/kernel.h>
38 #include <sys/socket.h>
39
40 #include <net/if.h>
41 #include <net/if_arp.h>
42
43 #include <pci/pcivar.h>
44
45 #include <dev/vx/if_vxreg.h>
46
47 static void vx_pci_shutdown(void *, int);
48 static const char *vx_pci_probe(pcici_t, pcidi_t);
49 static void vx_pci_attach(pcici_t, int unit);
50
51 static void
52 vx_pci_shutdown(
53 void *sc,
54 int howto)
55 {
56 vxstop(sc);
57 vxfree(sc);
58 }
59
60 static const char*
61 vx_pci_probe(
62 pcici_t config_id,
63 pcidi_t device_id)
64 {
65 if(device_id == 0x590010b7ul)
66 return "3COM 3C590 Etherlink III PCI";
67 if(device_id == 0x595010b7ul || device_id == 0x595110b7ul ||
68 device_id == 0x595210b7ul)
69 return "3COM 3C595 Fast Etherlink III PCI";
70 /*
71 * The (Fast) Etherlink XL adapters are now supported by
72 * the xl driver, which uses bus master DMA and is much
73 * faster. (And which also supports the 3c905B.
74 */
75 #ifdef VORTEX_ETHERLINK_XL
76 if(device_id == 0x900010b7ul || device_id == 0x900110b7ul)
77 return "3COM 3C900 Etherlink XL PCI";
78 if(device_id == 0x905010b7ul || device_id == 0x905110b7ul)
79 return "3COM 3C905 Fast Etherlink XL PCI";
80 #endif
81 return NULL;
82 }
83
84 static void
85 vx_pci_attach(
86 pcici_t config_id,
87 int unit)
88 {
89 struct vx_softc *sc;
90
91 if (unit >= NVX) {
92 printf("vx%d: not configured; kernel is built for only %d device%s.\n",
93 unit, NVX, NVX == 1 ? "" : "s");
94 return;
95 }
96
97 if ((sc = vxalloc(unit)) == NULL) {
98 return;
99 }
100
101 sc->vx_io_addr = pci_conf_read(config_id, 0x10) & 0xffffffe0;
102
103 if (vxattach(sc) == 0) {
104 return;
105 }
106
107 /* defect check for 3C590 */
108 if ((pci_conf_read(config_id, 0) >> 16) == 0x5900) {
109 GO_WINDOW(0);
110 if (vxbusyeeprom(sc))
111 return;
112 outw(BASE + VX_W0_EEPROM_COMMAND, EEPROM_CMD_RD | EEPROM_SOFT_INFO_2);
113 if (vxbusyeeprom(sc))
114 return;
115 if (!(inw(BASE + VX_W0_EEPROM_DATA) & NO_RX_OVN_ANOMALY)) {
116 printf("Warning! Defective early revision adapter!\n");
117 }
118 }
119
120 /*
121 * Add shutdown hook so that DMA is disabled prior to reboot. Not
122 * doing do could allow DMA to corrupt kernel memory during the
123 * reboot before the driver initializes.
124 */
125 EVENTHANDLER_REGISTER(shutdown_post_sync, vx_pci_shutdown, sc,
126 SHUTDOWN_PRI_DEFAULT);
127
128 pci_map_int(config_id, vxintr, (void *) sc, &net_imask);
129 }
130
131 static struct pci_device vxdevice = {
132 "vx",
133 vx_pci_probe,
134 vx_pci_attach,
135 &vx_count,
136 NULL
137 };
138
139 COMPAT_PCI_DRIVER (vx, vxdevice);
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