lirc-0.8.4a/daemons/hw_livedrive_seq.c

   1 /*
   2  * hw_livedrive_seq.c - lirc routines for a Creative Labs LiveDrive.
   3  *
   4  *     Copyright (C) 2003 Stephen Beahm <stephenbeahm@adelphia.net>
   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 as
   8  *     published by the Free Software Foundation; either version 2 of
   9  *     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
  17  *     License along with this program; if not, write to the Free
  18  *     Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
  19  *     USA.
  20  */
  21
  22 #include "hardware.h"
  23 #include "ir_remote.h"
  24 #include "hw_livedrive_common.h"
  25
  26 char *livedrive_rec_seq(struct ir_remote *remotes)
  27 {
  28         int i;
  29         struct sequencer_packet seq;
  30         struct midi_packet midi;
  31         unsigned char *bytep = (unsigned char *) &midi;
  32         ir_code bit[4];
  33
  34         last = end;
  35
  36         gettimeofday(&start, NULL);
  37         /* poll for system exclusive status byte so we don't try to
  38            record other midi events */
  39         do {
  40                 read(hw.fd, &seq, sizeof(seq));
  41         }
  42         while (seq.data != SYSEX);
  43
  44         for (i = 0; i < sizeof(midi); i++) {
  45                 read(hw.fd, &seq, sizeof(seq));
  46                if (midi.dev == NONREMOTE && i == 4)   /* skip 2 missing filler bytes for audigy2 non-infrared messages */
  47                        i += 2;
  48                 *(bytep+i) = seq.data;
  49         }
  50         gettimeofday(&end, NULL);
  51
  52         /* test for correct system exclusive end byte so we don't try
  53            to record other midi events */
  54         if (midi.sysex_end != SYSEX_END)
  55                 return (NULL);
  56
  57         bit[0] = (midi.keygroup >> 3) & 0x1;
  58         bit[1] = (midi.keygroup >> 2) & 0x1;
  59         bit[2] = (midi.keygroup >> 1) & 0x1;
  60         bit[3] = (midi.keygroup >> 0) & 0x1;
  61
  62         pre = reverse(midi.remote[0] |
  63                       (midi.remote[1] << 8), 16) | (bit[0] << 8) | bit[1];
  64         code = reverse(midi.key[0] |
  65                        (midi.key[1] << 8), 16) | (bit[2] << 8) | bit[3];
  66
  67         return (decode_all(remotes));
  68 }
  69
  70 struct hardware hw_livedrive_seq = {
  71         "/dev/sequencer",       /* simple device */
  72         -1,                     /* fd */
  73         LIRC_CAN_REC_LIRCCODE,  /* features */
  74         0,                      /* send_mode */
  75         LIRC_MODE_LIRCCODE,     /* rec_mode */
  76         32,                     /* code_length */
  77         livedrive_init,         /* init_func */
  78         NULL,                   /* config_func */
  79         livedrive_deinit,       /* deinit_func */
  80         NULL,                   /* send_func */
  81         livedrive_rec_seq,      /* rec_func */
  82         livedrive_decode,       /* decode_func */
  83         NULL,                   /* ioctl_func */
  84         NULL,
  85         "livedrive_seq"
  86 };