Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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/sched.h>
15#include <linux/string.h>
16#include <linux/kernel.h>
17#include <linux/skbuff.h>
18
19#include <linux/isdnif.h>
20#include "pcbit.h"
21
22MODULE_DESCRIPTION("ISDN4Linux: Driver for PCBIT-T card");
23MODULE_AUTHOR("Pedro Roque Marques");
24MODULE_LICENSE("GPL");
25
26static int mem[MAX_PCBIT_CARDS];
27static int irq[MAX_PCBIT_CARDS];
28
29module_param_array(mem, int, NULL, 0);
30module_param_array(irq, int, NULL, 0);
31
32static int num_boards;
33struct pcbit_dev * dev_pcbit[MAX_PCBIT_CARDS];
34
35extern void pcbit_terminate(int board);
36extern int pcbit_init_dev(int board, int mem_base, int irq);
37
38static int __init pcbit_init(void)
39{
40 int board;
41
42 num_boards = 0;
43
44 printk(KERN_NOTICE
45 "PCBIT-D device driver v 0.5-fjpc0 19991204 - "
46 "Copyright (C) 1996 Universidade de Lisboa\n");
47
48 if (mem[0] || irq[0])
49 {
50 for (board=0; board < MAX_PCBIT_CARDS && mem[board] && irq[board]; board++)
51 {
52 if (!mem[board])
53 mem[board] = 0xD0000;
54 if (!irq[board])
55 irq[board] = 5;
56
57 if (pcbit_init_dev(board, mem[board], irq[board]) == 0)
58 num_boards++;
59
60 else
61 {
62 printk(KERN_WARNING
63 "pcbit_init failed for dev %d",
64 board + 1);
65 return -EIO;
66 }
67 }
68 }
69
70 /* Hardcoded default settings detection */
71
72 if (!num_boards)
73 {
74 printk(KERN_INFO
75 "Trying to detect board using default settings\n");
76 if (pcbit_init_dev(0, 0xD0000, 5) == 0)
77 num_boards++;
78 else
79 return -EIO;
80 }
81 return 0;
82}
83
84static void __exit pcbit_exit(void)
85{
86#ifdef MODULE
87 int board;
88
89 for (board = 0; board < num_boards; board++)
90 pcbit_terminate(board);
91 printk(KERN_NOTICE
92 "PCBIT-D module unloaded\n");
93#endif
94}
95
96#ifndef MODULE
97#define MAX_PARA (MAX_PCBIT_CARDS * 2)
98static int __init pcbit_setup(char *line)
99{
100 int i, j, argc;
101 char *str;
102 int ints[MAX_PARA+1];
103
104 str = get_options(line, MAX_PARA, ints);
105 argc = ints[0];
106 i = 0;
107 j = 1;
108
109 while (argc && (i<MAX_PCBIT_CARDS)) {
110
111 if (argc) {
112 mem[i] = ints[j];
113 j++; argc--;
114 }
115
116 if (argc) {
117 irq[i] = ints[j];
118 j++; argc--;
119 }
120
121 i++;
122 }
123 return(1);
124}
125__setup("pcbit=", pcbit_setup);
126#endif
127
128module_init(pcbit_init);
129module_exit(pcbit_exit);
130