include/uapi/linux/n_r3964.h

   1 /* r3964 linediscipline for linux
   2  *
   3  * -----------------------------------------------------------
   4  * Copyright by
   5  * Philips Automation Projects
   6  * Kassel (Germany)
   7  * -----------------------------------------------------------
   8  * This software may be used and distributed according to the terms of
   9  * the GNU General Public License, incorporated herein by reference.
  10  *
  11  * Author:
  12  * L. Haag
  13  *
  14  * $Log: r3964.h,v $
  15  * Revision 1.4  2005/12/21 19:54:24  Kurt Huwig <kurt huwig de>
  16  * Fixed HZ usage on 2.6 kernels
  17  * Removed unnecessary include
  18  *
  19  * Revision 1.3  2001/03/18 13:02:24  dwmw2
  20  * Fix timer usage, use spinlocks properly.
  21  *
  22  * Revision 1.2  2001/03/18 12:53:15  dwmw2
  23  * Merge changes in 2.4.2
  24  *
  25  * Revision 1.1.1.1  1998/10/13 16:43:14  dwmw2
  26  * This'll screw the version control
  27  *
  28  * Revision 1.6  1998/09/30 00:40:38  dwmw2
  29  * Updated to use kernel's N_R3964 if available
  30  *
  31  * Revision 1.4  1998/04/02 20:29:44  lhaag
  32  * select, blocking, ...
  33  *
  34  * Revision 1.3  1998/02/12 18:58:43  root
  35  * fixed some memory leaks
  36  * calculation of checksum characters
  37  *
  38  * Revision 1.2  1998/02/07 13:03:17  root
  39  * ioctl read_telegram
  40  *
  41  * Revision 1.1  1998/02/06 19:19:43  root
  42  * Initial revision
  43  *
  44  *
  45  */
  46
  47 #ifndef _UAPI__LINUX_N_R3964_H__
  48 #define _UAPI__LINUX_N_R3964_H__
  49
  50 /* line disciplines for r3964 protocol */
  51
  52
  53 /*
  54  * Ioctl-commands
  55  */
  56
  57 #define R3964_ENABLE_SIGNALS      0x5301
  58 #define R3964_SETPRIORITY         0x5302
  59 #define R3964_USE_BCC             0x5303
  60 #define R3964_READ_TELEGRAM       0x5304
  61
  62 /* Options for R3964_SETPRIORITY */
  63 #define R3964_MASTER   0
  64 #define R3964_SLAVE    1
  65
  66 /* Options for R3964_ENABLE_SIGNALS */
  67 #define R3964_SIG_ACK   0x0001
  68 #define R3964_SIG_DATA  0x0002
  69 #define R3964_SIG_ALL   0x000f
  70 #define R3964_SIG_NONE  0x0000
  71 #define R3964_USE_SIGIO 0x1000
  72
  73 /*
  74  * r3964 operation states:
  75  */
  76
  77 /* types for msg_id: */
  78 enum {R3964_MSG_ACK=1, R3964_MSG_DATA };
  79
  80 #define R3964_MAX_MSG_COUNT 32
  81
  82 /* error codes for client messages */
  83 #define R3964_OK 0        /* no error. */
  84 #define R3964_TX_FAIL -1  /* transmission error, block NOT sent */
  85 #define R3964_OVERFLOW -2 /* msg queue overflow */
  86
  87 /* the client gets this struct when calling read(fd,...): */
  88 struct r3964_client_message {
  89           int     msg_id;
  90           int     arg;
  91           int     error_code;
  92 };
  93
  94 #define R3964_MTU      256
  95
  96
  97
  98 #endif /* _UAPI__LINUX_N_R3964_H__ */