/* sane - Scanner Access Now Easy. Copyright (C) 2004 -2006 Gerard Klaver (gerard at gkall dot hobby dot nl) The teco2 and gl646 backend (Frank Zago) are used as a template for this backend. For the usb commands and bayer decoding parts of the following program are used: The pencam2 program (GNU GPL license 2) For the usb commands parts of the following programs are used: The libgphoto2 (camlib stv0680) (GNU GPL license 2) The stv680.c/.h kernel module (GNU GPL license 2) For the stv680_add_text routine the add_text routine and font_6x11.h file are taken from the webcam.c file, part of xawtv program, (c) 1998-2002 Gerd Knorr (GNU GPL license 2). This file is part of the SANE package. 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. --------------------------------------------------------------------- */ /* $Id$ update 20-04-2006*/ /* Commands supported by the vidcam. */ /*--------------------------------------------------------------------------*/ static inline int getbitfield (unsigned char *pageaddr, int mask, int shift) { return ((*pageaddr >> shift) & mask); } /*--------------------------------------------------------------------------*/ #include #define LIBUSB_TIMEOUT 1000 /* ms */ typedef unsigned char byte; /*--------------------------------------------------------------------------*/ /* Black magic for color adjustment. */ struct dpi_color_adjust { int resolution_x; /* x-resolution */ int resolution_y; /* y-resolution */ int z1_color_0; /* 0, 1 or 2 */ int z1_color_1; /* idem */ int z1_color_2; /* idem */ }; /*--------------------------------------------------------------------------*/ enum Stv680_Option { /* Must come first */ OPT_NUM_OPTS = 0, OPT_MODE_GROUP, OPT_MODE, /* vidcam modes */ OPT_RESOLUTION, /* X and Y resolution */ OPT_BRIGHTNESS, /* brightness */ OPT_ENHANCEMENT_GROUP, OPT_WHITE_LEVEL_R, /*white level red correction */ OPT_WHITE_LEVEL_G, /*white level green correction */ OPT_WHITE_LEVEL_B, /*white level blue correction */ /* must come last: */ OPT_NUM_OPTIONS }; /*--------------------------------------------------------------------------*/ /* * Video Camera supported by this backend. */ struct vidcam_hardware { /* USB stuff */ SANE_Word vendor; SANE_Word product; SANE_Word class; /* Readable names */ const char *vendor_name; /* brand on the box */ const char *product_name; /* name on the box */ /* Resolutions supported in color mode. */ const struct dpi_color_adjust *color_adjust; }; #define COLOR_RAW_STR SANE_I18N("Color RAW") #define COLOR_RGB_STR SANE_I18N("Color RGB") #define COLOR_RGB_TEXT_STR SANE_I18N("Color RGB TEXT") /*--------------------------------------------------------------------------*/ /* Define a vidcam occurence. */ typedef struct Stv680_Vidcam { struct Stv680_Vidcam *next; SANE_Device sane; char *devicename; SANE_Int fd; /* device handle */ /* USB handling */ size_t buffer_size; /* size of the buffer */ SANE_Byte *buffer; /* for USB transfer. */ /* Bayer handling */ size_t output_size; /* size of the output */ SANE_Byte *output; /* for bayer conversion */ size_t image_size; /* allocated size of image */ size_t image_begin; /* first significant byte in image */ size_t image_end; /* first free byte in image */ SANE_Byte *image; /* keep the raw image here */ /* USB control messages handling */ size_t windoww_size; /* size of window write */ size_t windowr_size; /* size of window read */ SANE_Byte *windoww; /* for window write */ SANE_Byte *windowr; /* for window read */ /* Scanner infos. */ const struct vidcam_hardware *hw; /* default options for that vidcam */ SANE_Word *resolutions_list; SANE_Word *color_sequence_list; /* Scanning handling. */ SANE_Bool scanning; /* TRUE if a scan is running. */ SANE_Bool deliver_eof; int x_resolution; /* X resolution */ int y_resolution; /* Y resolution */ int depth; /* depth per color */ unsigned int colour; int red_s; int green_s; int blue_s; SANE_Parameters s_params; enum { STV680_COLOR_RGB, STV680_COLOR_RGB_TEXT, STV680_COLOR, STV680_COLOR_RAW } scan_mode; size_t bytes_left; /* number of bytes left to give to the backend */ size_t real_bytes_left; /* number of bytes left the vidcam will return. */ int bytes_pixel; const struct dpi_color_adjust *color_adjust; SANE_Parameters params; /* Options */ SANE_Option_Descriptor opt[OPT_NUM_OPTIONS]; Option_Value val[OPT_NUM_OPTIONS]; unsigned int video_mode; /* 0x0100 = VGA, 0x0000 = CIF, * 0x0300 = QVGA, 0x0200 = QCIF*/ unsigned int video_status; /* 0x01=start, 0x02=video, 0x04=busy, 0x08=idle */ int SupportedModes; int HardwareConfig; int QSIF; int CIF; int VGA; int QVGA; int QCIF; int cwidth; /* camera width */ int cheight; int subsample; int framecount; char picmsg_ps[50]; } Stv680_Vidcam; /*--------------------------------------------------------------------------*/ /* Debug levels. * Should be common to all backends. */ #define DBG_error0 0 #define DBG_error 1 #define DBG_sense 2 #define DBG_warning 3 #define DBG_inquiry 4 #define DBG_info 5 #define DBG_info2 6 #define DBG_proc 7 #define DBG_read 8 #define DBG_sane_init 10 #define DBG_sane_proc 11 #define DBG_sane_info 12 #define DBG_sane_option 13 /*--------------------------------------------------------*/ static SANE_Byte red_g[256] = { 0, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 25, 30, 35, 38, 42, 44, 47, 50, 53, 54, 57, 59, 61, 63, 65, 67, 69, 71, 71, 73, 75, 77, 78, 80, 81, 82, 84, 85, 87, 88, 89, 90, 91, 93, 94, 95, 97, 98, 98, 99, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 125, 126, 127, 128, 129, 129, 130, 131, 132, 133, 134, 134, 135, 135, 136, 137, 138, 139, 140, 140, 141, 142, 143, 143, 143, 144, 145, 146, 147, 147, 148, 149, 150, 150, 151, 152, 152, 152, 153, 154, 154, 155, 156, 157, 157, 158, 159, 159, 160, 161, 161, 161, 162, 163, 163, 164, 165, 165, 166, 167, 167, 168, 168, 169, 170, 170, 170, 171, 171, 172, 173, 173, 174, 174, 175, 176, 176, 177, 178, 178, 179, 179, 179, 180, 180, 181, 181, 182, 183, 183, 184, 184, 185, 185, 186, 187, 187, 188, 188, 188, 188, 189, 190, 190, 191, 191, 192, 192, 193, 193, 194, 195, 195, 196, 196, 197, 197, 197, 197, 198, 198, 199, 199, 200, 201, 201, 202, 202, 203, 203, 204, 204, 205, 205, 206, 206, 206, 206, 207, 207, 208, 208, 209, 209, 210, 210, 211, 211, 212, 212, 213, 213, 214, 214, 215, 215, 215, 215, 216, 216, 217, 217, 218, 218, 218, 219, 219, 220, 220, 221, 221 }; static SANE_Byte green_g[256] = { 0, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 28, 34, 39, 43, 47, 50, 53, 56, 59, 61, 64, 66, 68, 71, 73, 75, 77, 79, 80, 82, 84, 86, 87, 89, 91, 92, 94, 95, 97, 98, 100, 101, 102, 104, 105, 106, 108, 109, 110, 111, 113, 114, 115, 116, 117, 118, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 144, 145, 146, 147, 148, 149, 150, 151, 151, 152, 153, 154, 155, 156, 156, 157, 158, 159, 160, 160, 161, 162, 163, 164, 164, 165, 166, 167, 167, 168, 169, 170, 170, 171, 172, 172, 173, 174, 175, 175, 176, 177, 177, 178, 179, 179, 180, 181, 182, 182, 183, 184, 184, 185, 186, 186, 187, 187, 188, 189, 189, 190, 191, 191, 192, 193, 193, 194, 194, 195, 196, 196, 197, 198, 198, 199, 199, 200, 201, 201, 202, 202, 203, 204, 204, 205, 205, 206, 206, 207, 208, 208, 209, 209, 210, 210, 211, 212, 212, 213, 213, 214, 214, 215, 215, 216, 217, 217, 218, 218, 219, 219, 220, 220, 221, 221, 222, 222, 223, 224, 224, 225, 225, 226, 226, 227, 227, 228, 228, 229, 229, 230, 230, 231, 231, 232, 232, 233, 233, 234, 234, 235, 235, 236, 236, 237, 237, 238, 238, 239, 239, 240, 240, 241, 241, 242, 242, 243, 243, 243, 244, 244, 245, 245, 246, 246 }; static SANE_Byte blue_g[256] = { 0, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 30, 37, 42, 47, 51, 55, 58, 61, 64, 67, 70, 72, 74, 78, 80, 82, 84, 86, 88, 90, 92, 94, 95, 97, 100, 101, 103, 104, 106, 107, 110, 111, 112, 114, 115, 116, 118, 119, 121, 122, 124, 125, 126, 127, 128, 129, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 154, 155, 156, 157, 158, 158, 159, 160, 161, 162, 163, 165, 166, 166, 167, 168, 169, 170, 171, 171, 172, 173, 174, 176, 176, 177, 178, 179, 180, 180, 181, 182, 183, 183, 184, 185, 187, 187, 188, 189, 189, 190, 191, 192, 192, 193, 194, 194, 195, 196, 196, 198, 199, 200, 200, 201, 202, 202, 203, 204, 204, 205, 205, 206, 207, 207, 209, 210, 210, 211, 212, 212, 213, 213, 214, 215, 215, 216, 217, 217, 218, 218, 220, 221, 221, 222, 222, 223, 224, 224, 225, 225, 226, 226, 227, 228, 228, 229, 229, 231, 231, 232, 233, 233, 234, 234, 235, 235, 236, 236, 237, 238, 238, 239, 239, 240, 240, 242, 242, 243, 243, 244, 244, 245, 246, 246, 247, 247, 248, 248, 249, 249, 250, 250, 251, 251, 253, 253, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 };