release/src-rt-6.x/linux/linux-2.6/drivers/isdn/hardware/eicon/capimain.c

   1 /* $Id: capimain.c,v 1.24 2003/09/09 06:51:05 schindler Exp $
   2  *
   3  * ISDN interface module for Eicon active cards DIVA.
   4  * CAPI Interface
   5  *
   6  * Copyright 2000-2003 by Armin Schindler (mac@melware.de)
   7  * Copyright 2000-2003 Cytronics & Melware (info@melware.de)
   8  *
   9  * This software may be used and distributed according to the terms
  10  * of the GNU General Public License, incorporated herein by reference.
  11  */
  12
  13 #include <linux/module.h>
  14 #include <linux/init.h>
  15 #include <asm/uaccess.h>
  16 #include <linux/skbuff.h>
  17
  18 #include "os_capi.h"
  19
  20 #include "platform.h"
  21 #include "di_defs.h"
  22 #include "capi20.h"
  23 #include "divacapi.h"
  24 #include "cp_vers.h"
  25 #include "capifunc.h"
  26
  27 static char *main_revision = "$Revision: 1.24 $";
  28 static char *DRIVERNAME =
  29     "Eicon DIVA - CAPI Interface driver (http://www.melware.net)";
  30 static char *DRIVERLNAME = "divacapi";
  31
  32 MODULE_DESCRIPTION("CAPI driver for Eicon DIVA cards");
  33 MODULE_AUTHOR("Cytronics & Melware, Eicon Networks");
  34 MODULE_SUPPORTED_DEVICE("CAPI and DIVA card drivers");
  35 MODULE_LICENSE("GPL");
  36
  37 /*
  38  * get revision number from revision string
  39  */
  40 static char *getrev(const char *revision)
  41 {
  42         char *rev;
  43         char *p;
  44         if ((p = strchr(revision, ':'))) {
  45                 rev = p + 2;
  46                 p = strchr(rev, '$');
  47                 *--p = 0;
  48         } else
  49                 rev = "1.0";
  50         return rev;
  51
  52 }
  53
  54 /*
  55  * alloc a message buffer
  56  */
  57 diva_os_message_buffer_s *diva_os_alloc_message_buffer(unsigned long size,
  58                                                        void **data_buf)
  59 {
  60         diva_os_message_buffer_s *dmb = alloc_skb(size, GFP_ATOMIC);
  61         if (dmb) {
  62                 *data_buf = skb_put(dmb, size);
  63         }
  64         return (dmb);
  65 }
  66
  67 /*
  68  * free a message buffer
  69  */
  70 void diva_os_free_message_buffer(diva_os_message_buffer_s * dmb)
  71 {
  72         kfree_skb(dmb);
  73 }
  74
  75 /*
  76  * proc function for controller info
  77  */
  78 static int diva_ctl_read_proc(char *page, char **start, off_t off,
  79                               int count, int *eof, struct capi_ctr *ctrl)
  80 {
  81         diva_card *card = (diva_card *) ctrl->driverdata;
  82         int len = 0;
  83
  84         len += sprintf(page + len, "%s\n", ctrl->name);
  85         len += sprintf(page + len, "Serial No. : %s\n", ctrl->serial);
  86         len += sprintf(page + len, "Id         : %d\n", card->Id);
  87         len += sprintf(page + len, "Channels   : %d\n", card->d.channels);
  88
  89         if (off + count >= len)
  90                 *eof = 1;
  91         if (len < off)
  92                 return 0;
  93         *start = page + off;
  94         return ((count < len - off) ? count : len - off);
  95 }
  96
  97 /*
  98  * set additional os settings in capi_ctr struct
  99  */
 100 void diva_os_set_controller_struct(struct capi_ctr *ctrl)
 101 {
 102         ctrl->driver_name = DRIVERLNAME;
 103         ctrl->load_firmware = NULL;
 104         ctrl->reset_ctr = NULL;
 105         ctrl->ctr_read_proc = diva_ctl_read_proc;
 106         ctrl->owner = THIS_MODULE;
 107 }
 108
 109 /*
 110  * module init
 111  */
 112 static int DIVA_INIT_FUNCTION divacapi_init(void)
 113 {
 114         char tmprev[32];
 115         int ret = 0;
 116
 117         sprintf(DRIVERRELEASE_CAPI, "%d.%d%s", DRRELMAJOR, DRRELMINOR,
 118                 DRRELEXTRA);
 119
 120         printk(KERN_INFO "%s\n", DRIVERNAME);
 121         printk(KERN_INFO "%s: Rel:%s  Rev:", DRIVERLNAME, DRIVERRELEASE_CAPI);
 122         strcpy(tmprev, main_revision);
 123         printk("%s  Build: %s(%s)\n", getrev(tmprev),
 124                diva_capi_common_code_build, DIVA_BUILD);
 125
 126         if (!(init_capifunc())) {
 127                 printk(KERN_ERR "%s: failed init capi_driver.\n",
 128                        DRIVERLNAME);
 129                 ret = -EIO;
 130         }
 131
 132         return ret;
 133 }
 134
 135 /*
 136  * module exit
 137  */
 138 static void DIVA_EXIT_FUNCTION divacapi_exit(void)
 139 {
 140         finit_capifunc();
 141         printk(KERN_INFO "%s: module unloaded.\n", DRIVERLNAME);
 142 }
 143
 144 module_init(divacapi_init);
 145 module_exit(divacapi_exit);