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