drivers/isdn/hardware/avm/b1pcmcia.c

   1 /* $Id: b1pcmcia.c,v 1.1.2.2 2004/01/16 21:09:27 keil Exp $
   2  *
   3  * Module for AVM B1/M1/M2 PCMCIA-card.
   4  *
   5  * Copyright 1999 by Carsten Paeth <calle@calle.de>
   6  *
   7  * This software may be used and distributed according to the terms
   8  * of the GNU General Public License, incorporated herein by reference.
   9  *
  10  */
  11
  12 #include <linux/module.h>
  13 #include <linux/kernel.h>
  14 #include <linux/skbuff.h>
  15 #include <linux/delay.h>
  16 #include <linux/mm.h>
  17 #include <linux/interrupt.h>
  18 #include <linux/ioport.h>
  19 #include <linux/init.h>
  20 #include <asm/io.h>
  21 #include <linux/capi.h>
  22 #include <linux/b1pcmcia.h>
  23 #include <linux/isdn/capicmd.h>
  24 #include <linux/isdn/capiutil.h>
  25 #include <linux/isdn/capilli.h>
  26 #include "avmcard.h"
  27
  28 /* ------------------------------------------------------------- */
  29
  30 static char *revision = "$Revision: 1.1.2.2 $";
  31
  32 /* ------------------------------------------------------------- */
  33
  34 MODULE_DESCRIPTION("CAPI4Linux: Driver for AVM PCMCIA cards");
  35 MODULE_AUTHOR("Carsten Paeth");
  36 MODULE_LICENSE("GPL");
  37
  38 /* ------------------------------------------------------------- */
  39
  40 static void b1pcmcia_remove_ctr(struct capi_ctr *ctrl)
  41 {
  42         avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
  43         avmcard *card = cinfo->card;
  44         unsigned int port = card->port;
  45
  46         b1_reset(port);
  47         b1_reset(port);
  48
  49         detach_capi_ctr(ctrl);
  50         free_irq(card->irq, card);
  51         b1_free_card(card);
  52 }
  53
  54 /* ------------------------------------------------------------- */
  55
  56 static LIST_HEAD(cards);
  57
  58 static char *b1pcmcia_procinfo(struct capi_ctr *ctrl);
  59
  60 static int b1pcmcia_add_card(unsigned int port, unsigned irq,
  61                              enum avmcardtype cardtype)
  62 {
  63         avmctrl_info *cinfo;
  64         avmcard *card;
  65         char *cardname;
  66         int retval;
  67
  68         card = b1_alloc_card(1);
  69         if (!card) {
  70                 printk(KERN_WARNING "b1pcmcia: no memory.\n");
  71                 retval = -ENOMEM;
  72                 goto err;
  73         }
  74         cinfo = card->ctrlinfo;
  75
  76         switch (cardtype) {
  77                 case avm_m1: sprintf(card->name, "m1-%x", port); break;
  78                 case avm_m2: sprintf(card->name, "m2-%x", port); break;
  79                 default: sprintf(card->name, "b1pcmcia-%x", port); break;
  80         }
  81         card->port = port;
  82         card->irq = irq;
  83         card->cardtype = cardtype;
  84
  85         retval = request_irq(card->irq, b1_interrupt, IRQF_SHARED, card->name, card);
  86         if (retval) {
  87                 printk(KERN_ERR "b1pcmcia: unable to get IRQ %d.\n",
  88                        card->irq);
  89                 retval = -EBUSY;
  90                 goto err_free;
  91         }
  92         b1_reset(card->port);
  93         if ((retval = b1_detect(card->port, card->cardtype)) != 0) {
  94                 printk(KERN_NOTICE "b1pcmcia: NO card at 0x%x (%d)\n",
  95                        card->port, retval);
  96                 retval = -ENODEV;
  97                 goto err_free_irq;
  98         }
  99         b1_reset(card->port);
 100         b1_getrevision(card);
 101
 102         cinfo->capi_ctrl.owner         = THIS_MODULE;
 103         cinfo->capi_ctrl.driver_name   = "b1pcmcia";
 104         cinfo->capi_ctrl.driverdata    = cinfo;
 105         cinfo->capi_ctrl.register_appl = b1_register_appl;
 106         cinfo->capi_ctrl.release_appl  = b1_release_appl;
 107         cinfo->capi_ctrl.send_message  = b1_send_message;
 108         cinfo->capi_ctrl.load_firmware = b1_load_firmware;
 109         cinfo->capi_ctrl.reset_ctr     = b1_reset_ctr;
 110         cinfo->capi_ctrl.procinfo      = b1pcmcia_procinfo;
 111         cinfo->capi_ctrl.ctr_read_proc = b1ctl_read_proc;
 112         strcpy(cinfo->capi_ctrl.name, card->name);
 113
 114         retval = attach_capi_ctr(&cinfo->capi_ctrl);
 115         if (retval) {
 116                 printk(KERN_ERR "b1pcmcia: attach controller failed.\n");
 117                 goto err_free_irq;
 118         }
 119         switch (cardtype) {
 120                 case avm_m1: cardname = "M1"; break;
 121                 case avm_m2: cardname = "M2"; break;
 122                 default    : cardname = "B1 PCMCIA"; break;
 123         }
 124
 125         printk(KERN_INFO "b1pcmcia: AVM %s at i/o %#x, irq %d, revision %d\n",
 126                cardname, card->port, card->irq, card->revision);
 127
 128         list_add(&card->list, &cards);
 129         return cinfo->capi_ctrl.cnr;
 130
 131  err_free_irq:
 132         free_irq(card->irq, card);
 133  err_free:
 134         b1_free_card(card);
 135  err:
 136         return retval;
 137 }
 138
 139 /* ------------------------------------------------------------- */
 140
 141 static char *b1pcmcia_procinfo(struct capi_ctr *ctrl)
 142 {
 143         avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
 144
 145         if (!cinfo)
 146                 return "";
 147         sprintf(cinfo->infobuf, "%s %s 0x%x %d r%d",
 148                 cinfo->cardname[0] ? cinfo->cardname : "-",
 149                 cinfo->version[VER_DRIVER] ? cinfo->version[VER_DRIVER] : "-",
 150                 cinfo->card ? cinfo->card->port : 0x0,
 151                 cinfo->card ? cinfo->card->irq : 0,
 152                 cinfo->card ? cinfo->card->revision : 0
 153                 );
 154         return cinfo->infobuf;
 155 }
 156
 157 /* ------------------------------------------------------------- */
 158
 159 int b1pcmcia_addcard_b1(unsigned int port, unsigned irq)
 160 {
 161         return b1pcmcia_add_card(port, irq, avm_b1pcmcia);
 162 }
 163
 164 int b1pcmcia_addcard_m1(unsigned int port, unsigned irq)
 165 {
 166         return b1pcmcia_add_card(port, irq, avm_m1);
 167 }
 168
 169 int b1pcmcia_addcard_m2(unsigned int port, unsigned irq)
 170 {
 171         return b1pcmcia_add_card(port, irq, avm_m2);
 172 }
 173
 174 int b1pcmcia_delcard(unsigned int port, unsigned irq)
 175 {
 176         struct list_head *l;
 177         avmcard *card;
 178
 179         list_for_each(l, &cards) {
 180                 card = list_entry(l, avmcard, list);
 181                 if (card->port == port && card->irq == irq) {
 182                         b1pcmcia_remove_ctr(&card->ctrlinfo[0].capi_ctrl);
 183                         return 0;
 184                 }
 185         }
 186         return -ESRCH;
 187 }
 188
 189 EXPORT_SYMBOL(b1pcmcia_addcard_b1);
 190 EXPORT_SYMBOL(b1pcmcia_addcard_m1);
 191 EXPORT_SYMBOL(b1pcmcia_addcard_m2);
 192 EXPORT_SYMBOL(b1pcmcia_delcard);
 193
 194 static struct capi_driver capi_driver_b1pcmcia = {
 195         .name           = "b1pcmcia",
 196         .revision       = "1.0",
 197 };
 198
 199 static int __init b1pcmcia_init(void)
 200 {
 201         char *p;
 202         char rev[32];
 203
 204         if ((p = strchr(revision, ':')) != NULL && p[1]) {
 205                 strlcpy(rev, p + 2, 32);
 206                 if ((p = strchr(rev, '$')) != NULL && p > rev)
 207                    *(p-1) = 0;
 208         } else
 209                 strcpy(rev, "1.0");
 210
 211         strlcpy(capi_driver_b1pcmcia.revision, rev, 32);
 212         register_capi_driver(&capi_driver_b1pcmcia);
 213         printk(KERN_INFO "b1pci: revision %s\n", rev);
 214
 215         return 0;
 216 }
 217
 218 static void __exit b1pcmcia_exit(void)
 219 {
 220         unregister_capi_driver(&capi_driver_b1pcmcia);
 221 }
 222
 223 module_init(b1pcmcia_init);
 224 module_exit(b1pcmcia_exit);