1 /*
2 * PCBIT-D module support
3 *
4 * Copyright (C) 1996 Universidade de Lisboa
5 *
6 * Written by Pedro Roque Marques (roque@di.fc.ul.pt)
7 *
8 * This software may be used and distributed according to the terms of
9 * the GNU General Public License, incorporated herein by reference.
10 */
11
12 #include <linux/module.h>
13 #include <linux/init.h>
14 #include <linux/string.h>
15 #include <linux/kernel.h>
16 #include <linux/skbuff.h>
17
18 #include <linux/isdnif.h>
19 #include "pcbit.h"
20
21 MODULE_DESCRIPTION("ISDN4Linux: Driver for PCBIT-T card");
22 MODULE_AUTHOR("Pedro Roque Marques");
23 MODULE_LICENSE("GPL");
24
25 static int mem[MAX_PCBIT_CARDS];
26 static int irq[MAX_PCBIT_CARDS];
27
28 module_param_array(mem, int, NULL, 0);
29 module_param_array(irq, int, NULL, 0);
30
31 static int num_boards;
32 struct pcbit_dev *dev_pcbit[MAX_PCBIT_CARDS];
33
pcbit_init(void)34 static int __init pcbit_init(void)
35 {
36 int board;
37
38 num_boards = 0;
39
40 printk(KERN_NOTICE
41 "PCBIT-D device driver v 0.5-fjpc0 19991204 - "
42 "Copyright (C) 1996 Universidade de Lisboa\n");
43
44 if (mem[0] || irq[0])
45 {
46 for (board = 0; board < MAX_PCBIT_CARDS && mem[board] && irq[board]; board++)
47 {
48 if (!mem[board])
49 mem[board] = 0xD0000;
50 if (!irq[board])
51 irq[board] = 5;
52
53 if (pcbit_init_dev(board, mem[board], irq[board]) == 0)
54 num_boards++;
55
56 else
57 {
58 printk(KERN_WARNING
59 "pcbit_init failed for dev %d",
60 board + 1);
61 return -EIO;
62 }
63 }
64 }
65
66 /* Hardcoded default settings detection */
67
68 if (!num_boards)
69 {
70 printk(KERN_INFO
71 "Trying to detect board using default settings\n");
72 if (pcbit_init_dev(0, 0xD0000, 5) == 0)
73 num_boards++;
74 else
75 return -EIO;
76 }
77 return 0;
78 }
79
pcbit_exit(void)80 static void __exit pcbit_exit(void)
81 {
82 #ifdef MODULE
83 int board;
84
85 for (board = 0; board < num_boards; board++)
86 pcbit_terminate(board);
87 printk(KERN_NOTICE
88 "PCBIT-D module unloaded\n");
89 #endif
90 }
91
92 #ifndef MODULE
93 #define MAX_PARA (MAX_PCBIT_CARDS * 2)
pcbit_setup(char * line)94 static int __init pcbit_setup(char *line)
95 {
96 int i, j, argc;
97 char *str;
98 int ints[MAX_PARA + 1];
99
100 str = get_options(line, MAX_PARA, ints);
101 argc = ints[0];
102 i = 0;
103 j = 1;
104
105 while (argc && (i < MAX_PCBIT_CARDS)) {
106
107 if (argc) {
108 mem[i] = ints[j];
109 j++; argc--;
110 }
111
112 if (argc) {
113 irq[i] = ints[j];
114 j++; argc--;
115 }
116
117 i++;
118 }
119 return (1);
120 }
121 __setup("pcbit=", pcbit_setup);
122 #endif
123
124 module_init(pcbit_init);
125 module_exit(pcbit_exit);
126