Linux下USB摄像头驱动的例子

/* Linux driver for Philips webcam (C) 2004-2006 Luc Saillard (luc@saillard.org) NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx driver and thus may have bugs that are not present in the original version. Please send bug reports and support requests to <luc@saillard.org>. The decompression routines have been implemented by reverse-engineering the Nemosoft binary pwcx module. Caveat emptor. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ /* This tables contains entries for the 675/680/690 (Timon) camera, with 4 different qualities (no compression, low, medium, high). It lists the bandwidth requirements for said mode by its alternate interface number. An alternate of 0 means that the mode is unavailable. There are 6 * 4 * 4 entries: 6 different resolutions subqcif, qsif, qcif, sif, cif, vga 6 framerates: 5, 10, 15, 20, 25, 30 4 compression modi: none, low, medium, high When an uncompressed mode is not available, the next available compressed mode will be chosen (unless the decompressor is absent). Sometimes there are only 1 or 2 compressed modes available; in that case entries are duplicated. */ #include "pwc-timon.h" const unsigned int Timon_fps_vector[PWC_FPS_MAX_TIMON] = { 5, 10, 15, 20, 25, 30 }; const struct Timon_table_entry Timon_table[PSZ_MAX][PWC_FPS_MAX_TIMON][4] = { /* SQCIF */ { /* 5 fps */ { {1, 140, 0, {0x05, 0xF4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x13, 0x00, 0x8C, 0xFC, 0x80, 0x02}}, {1, 140, 0, {0x05, 0xF4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x13, 0x00, 0x8C, 0xFC, 0x80, 0x02}}, {1, 140, 0, {0x05, 0xF4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x13, 0x00, 0x8C, 0xFC, 0x80, 0x02}}, {1, 140, 0, {0x05, 0xF4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x13, 0x00, 0x8C, 0xFC, 0x80, 0x02}}, }, /* 10 fps */ { {2, 280, 0, {0x04, 0xF4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x13, 0x00, 0x18, 0xA9, 0x80, 0x02}}, {2, 280, 0, {0x04, 0xF4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x13, 0x00, 0x18, 0xA9, 0x80, 0x02}}, {2, 280, 0, {0x04, 0xF4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x13, 0x00, 0x18, 0xA9, 0x80, 0x02}}, {2, 280, 0, {0x04, 0xF4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x13, 0x00, 0x18, 0xA9, 0x80, 0x02}}, }, /* 15 fps */ { {3, 410, 0, {0x03, 0xF4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x13, 0x00, 0x9A, 0x71, 0x80, 0x02}}, {3, 410, 0, {0x03, 0xF4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x13, 0x00, 0x9A, 0x71, 0x80, 0x02}}, {3, 410, 0, {0x03, 0xF4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x13, 0x00, 0x9A, 0x71, 0x80, 0x02}}, {3, 410, 0, {0x03, 0xF4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x13, 0x00, 0x9A, 0x71, 0x80, 0x02}}, }, /* 20 fps */ { {4, 559, 0, {0x02, 0xF4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x13, 0x00, 0x2F, 0x56, 0x80, 0x02}}, {4, 559, 0, {0x02, 0xF4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x13, 0x00, 0x2F, 0x56, 0x80, 0x02}}, {4, 559, 0, {0x02, 0xF4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x13, 0x00, 0x2F, 0x56, 0x80, 0x02}}, {4, 559, 0, {0x02, 0xF4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x13, 0x00, 0x2F, 0x56, 0x80, 0x02}}, }, /* 25 fps */ { {5, 659, 0, {0x01, 0xF4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x13, 0x00, 0x93, 0x46, 0x80, 0x02}}, {5, 659, 0, {0x01, 0xF4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x13, 0x00, 0x93, 0x46, 0x80, 0x02}}, {5, 659, 0, {0x01, 0xF4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x13, 0x00, 0x93, 0x46, 0x80, 0x02}}, {5, 659, 0, {0x01, 0xF4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x13, 0x00, 0x93, 0x46, 0x80, 0x02}}, }, /* 30 fps */ { {7, 838, 0, {0x00, 0xF4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x13, 0x00, 0x46, 0x3B, 0x80, 0x02}}, {7, 838, 0, {0x00, 0xF4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x13, 0x00, 0x46, 0x3B, 0x80, 0x02}}, {7, 838, 0, {0x00, 0xF4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x13, 0x00, 0x46, 0x3B, 0x80, 0x02}}, {7, 838, 0, {0x00, 0xF4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x13, 0x00, 0x46, 0x3B, 0x80, 0x02}}, }, }, /* QSIF */ { /* 5 fps */ { {1, 146, 0, {0x2D, 0xF4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x18, 0x00, 0x92, 0xFC, 0xC0, 0x02}}, {1, 146, 0, {0x2D, 0xF4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x18, 0x00, 0x92, 0xFC, 0xC0, 0x02}}, {1, 146, 0, {0x2D, 0xF4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x18, 0x00, 0x92, 0xFC, 0xC0, 0x02}}, {1, 146, 0, {0x2D, 0xF4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x18, 0x00, 0x92, 0xFC, 0xC0, 0x02}}, }, /* 10 fps */ { {2, 291, 0, {0x2C, 0xF4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x18, 0x00, 0x23, 0xA1, 0xC0, 0x02}}, {1, 191, 630, {0x2C, 0xF4, 0x05, 0x13, 0xA9, 0x12, 0xE1, 0x17, 0x08, 0xBF, 0xF4, 0xC0, 0x02}}, {1, 191, 630, {0x2C, 0xF4, 0x05, 0x13, 0xA9, 0x12, 0xE1, 0x17, 0x08, 0xBF, 0xF4, 0xC0, 0x02}}, {1, 191, 630, {0x2C, 0xF4, 0x05, 0x13, 0xA9, 0x12, 0xE1, 0x17, 0x08, 0xBF, 0xF4, 0xC0, 0x02}}, }, /* 15 fps */ { {3, 437, 0, {0x2B, 0xF4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x18, 0x00, 0xB5, 0x6D, 0xC0, 0x02}}, {2, 291, 640, {0x2B, 0xF4, 0x05, 0x13, 0xF7, 0x13, 0x2F, 0x13, 0x08, 0x23, 0xA1, 0xC0, 0x02}}, {2, 291, 640, {0x2B, 0xF4, 0x05, 0x13, 0xF7, 0x13, 0x2F, 0x13, 0x08, 0x23, 0xA1, 0xC0, 0x02}}, {1, 191, 420, {0x2B, 0xF4, 0x0D, 0x0D, 0x1B, 0x0C, 0x53, 0x1E, 0x08, 0xBF, 0xF4, 0xC0, 0x02}}, }, /* 20 fps */ { {4, 588, 0, {0x2A, 0xF4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x18, 0x00, 0x4C, 0x52, 0xC0, 0x02}}, {3, 447, 730, {0x2A, 0xF4, 0x05, 0x16, 0xC9, 0x16, 0x01, 0x0E, 0x18, 0xBF, 0x69, 0xC0, 0x02}}, {2, 292, 476, {0x2A, 0xF4, 0x0D, 0x0E, 0xD8, 0x0E, 0x10, 0x19, 0x18, 0x24, 0xA1, 0xC0, 0x02}}, {1, 192, 312, {0x2A, 0xF4, 0x1D, 0x09, 0xB3, 0x08, 0xEB, 0x1E, 0x18, 0xC0, 0xF4, 0xC0, 0x02}}, }, /* 25 fps */ { {5, 703, 0, {0x29, 0xF4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x18, 0x00, 0xBF, 0x42, 0xC0, 0x02}}, {3, 447, 610, {0x29, 0xF4, 0x05, 0x13, 0x0B, 0x12, 0x43, 0x14, 0x18, 0xBF, 0x69, 0xC0, 0x02}}, {2, 292, 398, {0x29, 0xF4, 0x0D, 0x0C, 0x6C, 0x0B, 0xA4, 0x1E, 0x18, 0x24, 0xA1, 0xC0, 0x02}}, {1, 192, 262, {0x29, 0xF4, 0x25, 0x08, 0x23, 0x07, 0x5B, 0x1E, 0x18, 0xC0, 0xF4, 0xC0, 0x02}}, }, /* 30 fps */ { {8, 873, 0, {0x28, 0xF4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x18, 0x00, 0x69, 0x37, 0xC0, 0x02}}, {5, 704, 774, {0x28, 0xF4, 0x05, 0x18, 0x21, 0x17, 0x59, 0x0F, 0x18, 0xC0, 0x42, 0xC0, 0x02}}, {3, 448, 492, {0x28, 0xF4, 0x05, 0x0F, 0x5D, 0x0E, 0x95, 0x15, 0x18, 0xC0, 0x69, 0xC0, 0x02}}, {2, 291, 320, {0x28, 0xF4, 0x1D, 0x09, 0xFB, 0x09, 0x33, 0x1E, 0x18, 0x23, 0xA1, 0xC0, 0x02}}, }, }, /* QCIF */ { /* 5 fps */ { {1, 193, 0, {0x0D, 0xF4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x12, 0x00, 0xC1, 0xF4, 0xC0, 0x02}}, {1, 193, 0, {0x0D, 0xF4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x12, 0x00, 0xC1, 0xF4, 0xC0, 0x02}}, {1, 193, 0, {0x0D, 0xF4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x12, 0x00, 0xC1, 0xF4, 0xC0, 0x02}}, {1, 193, 0, {0x0D, 0xF4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x