FreeBSD/Linux Kernel Cross Reference
sys/pci/if_lnc_p.c
1 /*
2 *
3 * Copyright (c) 1996 Stefan Esser <se@freebsd.org>
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice immediately at the beginning of the file, without modification,
11 * this list of conditions, and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Absolutely no warranty of function or purpose is made by the author
16 * Stefan Esser.
17 * 4. Modifications may be freely made to this file if the above conditions
18 * are met.
19 *
20 * $FreeBSD$
21 */
22
23 #include <sys/param.h>
24 #include <sys/systm.h>
25 #include <sys/malloc.h>
26 #include <sys/kernel.h>
27 #include <pci/pcireg.h>
28 #include <pci/pcivar.h>
29
30 #include "lnc.h"
31
32 #define PCI_DEVICE_ID_PCNet_PCI 0x20001022
33 #define PCI_DEVICE_ID_PCHome_PCI 0x20011022
34
35 extern void *lnc_attach_ne2100_pci __P((int unit, unsigned iobase));
36
37 static const char* lnc_pci_probe __P((pcici_t tag, pcidi_t type));
38 static void lnc_pci_attach __P((pcici_t config_id, int unit));
39
40 static u_long lnc_pci_count = NLNC;
41
42 static struct pci_device lnc_pci_driver = {
43 "lnc",
44 lnc_pci_probe,
45 lnc_pci_attach,
46 &lnc_pci_count,
47 NULL
48 };
49
50 COMPAT_PCI_DRIVER (lnc_pci, lnc_pci_driver);
51
52 static const char*
53 lnc_pci_probe (pcici_t tag, pcidi_t type)
54 {
55 switch(type) {
56 case PCI_DEVICE_ID_PCNet_PCI:
57 return ("PCNet/PCI Ethernet adapter");
58 break;
59 case PCI_DEVICE_ID_PCHome_PCI:
60 return ("PCHome/PCI Ethernet adapter");
61 break;
62 default:
63 break;
64 }
65 return (0);
66 }
67
68 void lncintr_sc (void*);
69
70 static void
71 lnc_pci_attach(config_id, unit)
72 pcici_t config_id;
73 int unit;
74 {
75 unsigned iobase;
76 unsigned data; /* scratch to make this device a bus master*/
77 void *lnc; /* device specific data for interrupt handler ... */
78
79 if ( !pci_map_port(config_id,PCI_MAP_REG_START,(u_short *)&iobase) )
80 printf("lnc%d: pci_port_map_attach failed?!\n",unit);
81
82
83 /* Make this device a bus master. This was implictly done by
84 pci_map_port under 2.2.x -- tvf */
85
86 data = pci_cfgread(config_id, PCIR_COMMAND, 4);
87 data |= PCIM_CMD_PORTEN | PCIM_CMD_BUSMASTEREN;
88 pci_cfgwrite(config_id, PCIR_COMMAND, data, 4);
89
90 lnc = lnc_attach_ne2100_pci(unit, iobase);
91
92 if (!lnc)
93 return;
94 if(!(pci_map_int(config_id, lncintr_sc, (void *)lnc, &net_imask))) {
95 free (lnc, M_DEVBUF);
96 return;
97 }
98
99 return;
100 }
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