root/drivers/isdn/teles/llglue.c

/* */

DEFINITIONS

1. teles_readstatus
2. teles_putstatus
3. ll_init
4. ll_stop
5. ll_unload

   1 #define __NO_VERSION__
   2 #include "teles.h"
   3 #include <linux/malloc.h>
   4 #include <linux/timer.h>
   5 
   6 
   7 extern struct Channel *chanlist;
   8 int             drid;
   9 char            *teles_id = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
  10 
  11 isdn_if         iif;
  12 
  13 #define TELES_STATUS_BUFSIZE 4096
  14 static byte    *teles_status_buf = NULL;
  15 static byte    *teles_status_read = NULL;
  16 static byte    *teles_status_write = NULL;
  17 static byte    *teles_status_end = NULL;
  18 
  19 int
  20 teles_readstatus(byte * buf, int len, int user)
     /*  */
  21 {
  22         int             count;
  23         byte           *p;
  24 
  25         for (p = buf, count = 0; count < len; p++, count++) {
  26                 if (user)
  27                         put_fs_byte(*teles_status_read++, p);
  28                 else
  29                         *p++ = *teles_status_read++;
  30                 if (teles_status_read > teles_status_end)
  31                         teles_status_read = teles_status_buf;
  32         }
  33         return count;
  34 }
  35 
  36 void
  37 teles_putstatus(char *buf)
     /*  */
  38 {
  39         long            flags;
  40         int             len, count, i;
  41         byte           *p;
  42         isdn_ctrl       ic;
  43 
  44         save_flags(flags);
  45         cli();
  46         count = 0;
  47         len = strlen(buf);
  48         for (p = buf, i = len; i > 0; i--, p++) {
  49                 *teles_status_write++ = *p;
  50                 if (teles_status_write > teles_status_end)
  51                         teles_status_write = teles_status_buf;
  52                 count++;
  53         }
  54         restore_flags(flags);
  55         if (count) {
  56                 ic.command = ISDN_STAT_STAVAIL;
  57                 ic.driver = drid;
  58                 ic.arg = count;
  59                 iif.statcallb(&ic);
  60         }
  61 }
  62 
  63 
  64 int
  65 ll_init(void)
     /*  */
  66 {
  67         isdn_ctrl       ic;
  68 
  69         teles_status_buf = Smalloc(TELES_STATUS_BUFSIZE,
  70                                    GFP_KERNEL, "teles_status_buf");
  71         if (!teles_status_buf) {
  72                 printk(KERN_ERR "teles: Could not allocate status-buffer\n");
  73                 return (-EIO);
  74         } else {
  75                 teles_status_read = teles_status_buf;
  76                 teles_status_write = teles_status_buf;
  77                 teles_status_end = teles_status_buf + TELES_STATUS_BUFSIZE - 1;
  78         }
  79 
  80         iif.channels = CallcNewChan();
  81         iif.maxbufsize = BUFFER_SIZE(HSCX_SBUF_ORDER, HSCX_SBUF_BPPS);
  82         iif.features =
  83             ISDN_FEATURE_L2_X75I |
  84             ISDN_FEATURE_L2_HDLC |
  85             ISDN_FEATURE_L3_TRANS |
  86             ISDN_FEATURE_P_1TR6 |
  87             ISDN_FEATURE_P_EURO;
  88 
  89         iif.command = teles_command;
  90         iif.writebuf = teles_writebuf;
  91         iif.writecmd = NULL;
  92         iif.readstat = teles_readstatus;
  93         strncpy(iif.id, teles_id, sizeof(iif.id) - 1);
  94 
  95         register_isdn(&iif);
  96         drid = iif.channels;
  97 
  98         ic.driver = drid;
  99         ic.command = ISDN_STAT_RUN;
 100         iif.statcallb(&ic);
 101         return 0;
 102 }
 103 
 104 void
 105 ll_stop(void)
     /*  */
 106 {
 107         isdn_ctrl       ic;
 108 
 109         ic.command = ISDN_STAT_STOP;
 110         ic.driver = drid;
 111         iif.statcallb(&ic);
 112 
 113         CallcFreeChan();
 114 }
 115 
 116 void
 117 ll_unload(void)
     /*  */
 118 {
 119         isdn_ctrl       ic;
 120 
 121         ic.command = ISDN_STAT_UNLOAD;
 122         ic.driver = drid;
 123         iif.statcallb(&ic);
 124 }

/* */