| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
| 22 | MODULE_DESCRIPTION("ISDN4Linux: Driver for PCBIT-T card"); |
| 23 | MODULE_AUTHOR("Pedro Roque Marques"); |
| 24 | MODULE_LICENSE("GPL"); |
| 25 | |
| 26 | static int mem[MAX_PCBIT_CARDS]; |
| 27 | static int irq[MAX_PCBIT_CARDS]; |
| 28 | |
| 29 | module_param_array(mem, int, NULL, 0); |
| 30 | module_param_array(irq, int, NULL, 0); |
| 31 | |
| 32 | static int num_boards; |
| 33 | struct pcbit_dev * dev_pcbit[MAX_PCBIT_CARDS]; |
| 34 | |
| 35 | extern void pcbit_terminate(int board); |
| 36 | extern int pcbit_init_dev(int board, int mem_base, int irq); |
| 37 | |
| 38 | static 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 | |
| 84 | static 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) |
| 98 | static 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 | |
| 128 | module_init(pcbit_init); |
| 129 | module_exit(pcbit_exit); |
| 130 | |