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
64
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