eib.h

   1  /*
   2      eib.h - Low Level EIB driver for BCU 1
   3
   4      Copyright (C) 2000 Bernd Thallner <bernd@kangaroo.at>
   5
   6      This program is free software; you can redistribute it and/or
   7      modify it under the terms of the GNU General Public License
   8      as published by the Free Software Foundation; either version 2
   9      of the License, or (at your option) any later version.
  10
  11      This program is distributed in the hope that it will be useful,
  12      but WITHOUT ANY WARRANTY; without even the implied warranty of
  13      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14      GNU General Public License for more details.
  15
  16      You should have received a copy of the GNU General Public License
  17      along with this program; if not, write to the Free Software
  18      Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  19 */
  20
  21
  22 struct eib_device_information {
  23   char string[255];
  24   unsigned long warning_flag;
  25   int rb_length;
  26   int wb_length;
  27   int rb_max_length;
  28   int wb_max_length;
  29   unsigned long stat_rx_bytes;
  30   unsigned long stat_tx_bytes;
  31   unsigned long stat_rx_data_blocks;
  32   unsigned long stat_tx_data_blocks;
  33   unsigned long stat_max_rx_time_data_block;
  34   unsigned long stat_max_tx_time_data_block;
  35   int io;
  36   int irq;
  37   int major;
  38 };
  39
  40
  41 #define EIB_IOCTL_MAGIC ('E'+'I'+'B') // 0xd0
  42
  43 #define EIB_GET_BCU_VERSION           _IO (EIB_IOCTL_MAGIC, 0)
  44 #define EIB_CLEAR_WRITE_BUFFER        _IO (EIB_IOCTL_MAGIC, 3)
  45 #define EIB_CLEAR_READ_BUFFER         _IO (EIB_IOCTL_MAGIC, 5)
  46
  47 /* the following are nops: not working */
  48 #define EIB_GET_DEVICE_INFORMATION    _IOR(EIB_IOCTL_MAGIC, 1, struct eib_device_information)
  49 #define EIB_RESET_DEVICE_STATISTIC    _IO (EIB_IOCTL_MAGIC, 2)
  50 #define EIB_SINGLE_OPEN               _IO (EIB_IOCTL_MAGIC, 4)
  51
  52 /*
  53 warning_flag:
  54 0x00000001     interrupt_handler        no interrupt pending                  ignore
  55 0x00000002 0   interrupt_handler        unexpected receive data interrupt     reset reason, protocol error
  56 0x00000004 3 6 interrupt_handler        unexpected receive data interrupt     reset reason, protocol error
  57 0x00000008 3 6 interrupt_handler        unexpected cts change to high         reset reason, protocol error
  58 0x00000010 0   interrupt_handler        read buffer overflow                  reset, warning
  59 0x00000020 2   interrupt_handler        unexpected cts change to high         reset reason, protocol error
  60 0x00000040     interrupt_handler
  61                do_temt_bh               unknown state                         reset reason, coding error
  62 0x00000080 2 5 interrupt_handler        overrun                               reset reason, protocol error
  63 0x00000100 5   interrupt_handler        read forced                           info, normal operation
  64 0x00000200 1   interrupt_handler        unexpected receive data interrupt     reset reason, protocol error
  65 0x00000400 2 5 interrupt_handler        parity error                          reset reason, physical layer error
  66 0x00000800 4   interrupt_handler        unexpected receive data interrupt     reset reason, protocol error
  67 0x00001000 3   do_temt_bh               exceed MAX_TEMT_WAIT                  reset reason, protocol error
  68            5   interrupt_handler
  69 0x00002000 5   interrupt_handler        unexpected byte received              reset reason, protocol error
  70 0x00004000 5   interrupt_handler        read forced && read buffer full       reset reason
  71 0x00008000 5   interrupt_handler        unexpected cts change                 reset reason, protocol error
  72 0x00010000     initate_send_timer       initate send with empty write buffer  ignore, coding error
  73 0x00020000     do_temt_bh               bcu reset (info)                      info
  74 0x00040000 3 6 check_int_pending        unexpected receive data interrupt     reset reason, protocol error
  75 0x00040000 3 6 check_interrupt_pending  unexpected cts change to high         reset reason, protocol error
  76 0x00100000     interrupt_handler
  77                detect_reset_timer       READ_WRITE_TIMEOUT                    reset reason, system load to high
  78 0x00200000     detect_reset_timer       exceed MAX_TIME_BETWEEN_INT           reset reason, could be bcu reset
  79 0x00400000     eib_ioctl                clear write buffer                    user initated reset
  80 */
  81