1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* Linux driver for Philips webcam 3 (C) 2004-2006 Luc Saillard (luc@saillard.org) 4 5 NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx 6 driver and thus may have bugs that are not present in the original version. 7 Please send bug reports and support requests to <luc@saillard.org>. 8 The decompression routines have been implemented by reverse-engineering the 9 Nemosoft binary pwcx module. Caveat emptor. 10 11 */ 12 13 14 15 /* This tables contains entries for the 675/680/690 (Timon) camera, with 16 4 different qualities (no compression, low, medium, high). 17 It lists the bandwidth requirements for said mode by its alternate interface 18 number. An alternate of 0 means that the mode is unavailable. 19 20 There are 6 * 4 * 4 entries: 21 6 different resolutions subqcif, qsif, qcif, sif, cif, vga 22 6 framerates: 5, 10, 15, 20, 25, 30 23 4 compression modi: none, low, medium, high 24 25 When an uncompressed mode is not available, the next available compressed mode 26 will be chosen (unless the decompressor is absent). Sometimes there are only 27 1 or 2 compressed modes available; in that case entries are duplicated. 28 */ 29 30 #ifndef PWC_TIMON_H 31 #define PWC_TIMON_H 32 33 #include "pwc.h" 34 35 #define PWC_FPS_MAX_TIMON 6 36 37 struct Timon_table_entry 38 { 39 char alternate; /* USB alternate interface */ 40 unsigned short packetsize; /* Normal packet size */ 41 unsigned short bandlength; /* Bandlength when decompressing */ 42 unsigned char mode[13]; /* precomputed mode settings for cam */ 43 }; 44 45 extern const struct Timon_table_entry Timon_table[PSZ_MAX][PWC_FPS_MAX_TIMON][4]; 46 extern const unsigned int TimonRomTable [16][2][16][8]; 47 extern const unsigned int Timon_fps_vector[PWC_FPS_MAX_TIMON]; 48 49 #endif 50 51 52