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kernel/linux-rt-4.4.41/drivers/isdn/hisax/hisax_if.h 1.4 KB
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  /*
   * Interface between low level (hardware) drivers and
   * HiSax protocol stack
   *
   * Author       Kai Germaschewski
   * Copyright    2001 by Kai Germaschewski  <kai.germaschewski@gmx.de>
   *
   * This software may be used and distributed according to the terms
   * of the GNU General Public License, incorporated herein by reference.
   *
   */
  
  #ifndef __HISAX_IF_H__
  #define __HISAX_IF_H__
  
  #include <linux/skbuff.h>
  
  #define REQUEST		0
  #define CONFIRM		1
  #define INDICATION	2
  #define RESPONSE	3
  
  #define PH_ACTIVATE	0x0100
  #define PH_DEACTIVATE	0x0110
  #define PH_DATA		0x0120
  #define PH_PULL		0x0130
  #define PH_DATA_E	0x0140
  
  #define L1_MODE_NULL	0
  #define L1_MODE_TRANS	1
  #define L1_MODE_HDLC	2
  #define L1_MODE_EXTRN	3
  #define L1_MODE_HDLC_56K 4
  #define L1_MODE_MODEM	7
  #define L1_MODE_V32	8
  #define L1_MODE_FAX	9
  
  struct hisax_if {
  	void *priv; // private to driver
  	void (*l1l2)(struct hisax_if *, int pr, void *arg);
  	void (*l2l1)(struct hisax_if *, int pr, void *arg);
  };
  
  struct hisax_b_if {
  	struct hisax_if ifc;
  
  	// private to hisax
  	struct BCState *bcs;
  };
  
  struct hisax_d_if {
  	struct hisax_if ifc;
  
  	// private to hisax
  	struct module *owner;
  	struct IsdnCardState *cs;
  	struct hisax_b_if *b_if[2];
  	struct sk_buff_head erq;
  	unsigned long ph_state;
  };
  
  int hisax_register(struct hisax_d_if *hisax_if, struct hisax_b_if *b_if[],
  		   char *name, int protocol);
  void hisax_unregister(struct hisax_d_if *hisax_if);
  
  #endif