drivers/isdn/hisax/hisax_if.h

   1 /*
   2  * Interface between low level (hardware) drivers and
   3  * HiSax protocol stack
   4  *
   5  * Author       Kai Germaschewski
   6  * Copyright    2001 by Kai Germaschewski  <kai.germaschewski@gmx.de>
   7  *
   8  * This software may be used and distributed according to the terms
   9  * of the GNU General Public License, incorporated herein by reference.
  10  *
  11  */
  12
  13 #ifndef __HISAX_IF_H__
  14 #define __HISAX_IF_H__
  15
  16 #include <linux/skbuff.h>
  17
  18 #define REQUEST         0
  19 #define CONFIRM         1
  20 #define INDICATION      2
  21 #define RESPONSE        3
  22
  23 #define PH_ACTIVATE     0x0100
  24 #define PH_DEACTIVATE   0x0110
  25 #define PH_DATA         0x0120
  26 #define PH_PULL         0x0130
  27 #define PH_DATA_E       0x0140
  28
  29 #define L1_MODE_NULL    0
  30 #define L1_MODE_TRANS   1
  31 #define L1_MODE_HDLC    2
  32 #define L1_MODE_EXTRN   3
  33 #define L1_MODE_HDLC_56K 4
  34 #define L1_MODE_MODEM   7
  35 #define L1_MODE_V32     8
  36 #define L1_MODE_FAX     9
  37
  38 struct hisax_if {
  39         void *priv; // private to driver
  40         void (*l1l2)(struct hisax_if *, int pr, void *arg);
  41         void (*l2l1)(struct hisax_if *, int pr, void *arg);
  42 };
  43
  44 struct hisax_b_if {
  45         struct hisax_if ifc;
  46
  47         // private to hisax
  48         struct BCState *bcs;
  49 };
  50
  51 struct hisax_d_if {
  52         struct hisax_if ifc;
  53
  54         // private to hisax
  55         struct module *owner;
  56         struct IsdnCardState *cs;
  57         struct hisax_b_if *b_if[2];
  58         struct sk_buff_head erq;
  59         unsigned long ph_state;
  60 };
  61
  62 int hisax_register(struct hisax_d_if *hisax_if, struct hisax_b_if *b_if[],
  63                    char *name, int protocol);
  64 void hisax_unregister(struct hisax_d_if *hisax_if);
  65
  66 #endif