drivers/media/video/pwc/pwc-timon.h

   1 /* Linux driver for Philips webcam
   2    (C) 2004-2006 Luc Saillard (luc@saillard.org)
   3
   4    NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx
   5    driver and thus may have bugs that are not present in the original version.
   6    Please send bug reports and support requests to <luc@saillard.org>.
   7    The decompression routines have been implemented by reverse-engineering the
   8    Nemosoft binary pwcx module. Caveat emptor.
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 2 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  23 */
  24
  25
  26
  27 /* This tables contains entries for the 675/680/690 (Timon) camera, with
  28    4 different qualities (no compression, low, medium, high).
  29    It lists the bandwidth requirements for said mode by its alternate interface
  30    number. An alternate of 0 means that the mode is unavailable.
  31
  32    There are 6 * 4 * 4 entries:
  33      6 different resolutions subqcif, qsif, qcif, sif, cif, vga
  34      6 framerates: 5, 10, 15, 20, 25, 30
  35      4 compression modi: none, low, medium, high
  36
  37    When an uncompressed mode is not available, the next available compressed mode
  38    will be chosen (unless the decompressor is absent). Sometimes there are only
  39    1 or 2 compressed modes available; in that case entries are duplicated.
  40 */
  41
  42 #ifndef PWC_TIMON_H
  43 #define PWC_TIMON_H
  44
  45 #include <media/pwc-ioctl.h>
  46
  47 #define PWC_FPS_MAX_TIMON 6
  48
  49 struct Timon_table_entry
  50 {
  51         char alternate;                 /* USB alternate interface */
  52         unsigned short packetsize;      /* Normal packet size */
  53         unsigned short bandlength;      /* Bandlength when decompressing */
  54         unsigned char mode[13];         /* precomputed mode settings for cam */
  55 };
  56
  57 extern const struct Timon_table_entry Timon_table[PSZ_MAX][PWC_FPS_MAX_TIMON][4];
  58 extern const unsigned int TimonRomTable [16][2][16][8];
  59 extern const unsigned int Timon_fps_vector[PWC_FPS_MAX_TIMON];
  60
  61 #endif
  62
  63