/* sane - Scanner Access Now Easy. Copyright (C) 2006 -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 authentec_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). For the init of the device, parts of the following programs are used: biopod (Mike Smith, Micah Villmow) udrv (David Zeuthen) main (Andreas Pehnack) aespack Andreas Grotz aes2501-WY Wittawat Yamwong 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: authentec.h,v 1.2 2006/09/15 20:56:15 gerard Exp $ */ /* Commands supported by the fingerprint. */ /*--------------------------------------------------------------------------*/ 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 Authentec_Option { /* Must come first */ OPT_NUM_OPTS = 0, OPT_MODE_GROUP, OPT_MODE, /* fingerprint modes */ OPT_RESOLUTION, /* X and Y resolution */ OPT_BRIGHTNESS, /* brightness */ OPT_ENHANCEMENT_GROUP, OPT_WHITE_LEVEL_R, /*white level red correction */ OPT_WHITE_LEVEL, /*white level correction */ /* must come last: */ OPT_NUM_OPTIONS }; /* * Fingerprint scanner supported by this backend. */ struct fingerprint_hardware { /* USB stuff */ SANE_Word vendor; SANE_Word product; SANE_Word class; enum { Authentec_AES2501, Authentec_AES3400, Authentec_AES3500, Authentec_AES3500_X50 } authentecref; /* 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 GRAYSCALE_RAW_STR SANE_I18N("GRAY RAW") #define GRAYSCALE_TEXT_STR SANE_I18N("GRAY TEXT") /*--------------------------------------------------------------------------*/ /* Define a fingerprint occurence. */ typedef struct Authentec_Fingerprint { struct Authentec_Fingerprint *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 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 fingerprint_hardware *hw; /* default options for that fingerprint */ 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 { AUTHENTEC_GRAYSCALE_RAW, AUTHENTEC_GRAYSCALE, AUTHENTEC_GRAYSCALE_TEXT } 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 fingerprint 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]; char picmsg_ps[50]; } Authentec_Fingerprint; /*--------------------------------------------------------------------------*/ /* 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 urb_outbuf_aes2501[0x06] = { 0xAC, 0x01, 0xAD, 0x1A, 0x81, 0x02 }; static SANE_Byte urb_outbufreset_aes2501[0x0e] = { 0x80, 0x01, 0x82, 0x40, 0xB0, 0x27, 0x94, 0x0A, 0x80, 0x04, 0x83, 0x45, 0xA8, 0x41 }; static SANE_Byte urb_outbufinit1_aes2501[0x02] = { 0xB0, 0x27 }; static SANE_Byte urb_outbufinit2_aes2501[0x04] = { 0x80, 0x01, 0x82, 0x40 }; static SANE_Byte urb_outbufinit3_aes2501[0x04] = { 0x80, 0x01, 0x82, 0x40 }; static SANE_Byte urb_outbufinit4_aes2501[0x06] = { 0xAC, 0x01, 0xAD, 0x1A, 0x81, 0x02 }; static SANE_Byte urb_outbufinit5_aes2501[0x04] = { 0x80, 0x01, 0x82, 0x40 }; static SANE_Byte urb_outbufinit6_aes2501[0x04] = { 0x80, 0x01, 0x82, 0x40 }; static SANE_Byte urb_outbufinit7_aes2501[0x04] = { 0x80, 0x01, 0x82, 0x40 }; static SANE_Byte urb_outbufinit8_aes2501[0x02] = { 0x80, 0x02 }; static SANE_Byte urb_outbufinit9_aes2501[0x02] = { 0x80, 0x02 }; static SANE_Byte urb_outbufinit10_aes2501[0x02] = { 0x80, 0x02 }; static SANE_Byte urb_init_aes2501[0x7e] = { 0x80, 0x00, 0x81, 0x00, 0x82, 0x40, 0x83, 0x13, 0x84, 0x07, 0x85, 0x02, 0x86, 0x01, 0x87, 0x01, 0x88, 0x03, 0x89, 0x02, 0x8A, 0x05, 0x8B, 0x00, 0x8C, 0x40, 0x8D, 0x00, 0x8E, 0x00, 0x8F, 0x00, 0x90, 0x00, 0x91, 0x70, 0x92, 0x20, 0x93, 0x00, 0x94, 0x0A, 0x95, 0x00, 0x96, 0x7F, 0x97, 0x08, 0x98, 0x20, 0x99, 0x00, 0x9A, 0x10, 0x9B, 0x00, 0x9C, 0x00, 0x9D, 0x06, 0x9E, 0x03, 0x9F, 0x21, 0xA0, 0x00, 0xA1, 0x00, 0xA2, 0x00, 0xA3, 0x00, 0xA4, 0x00, 0xA5, 0x00, 0xA6, 0x00, 0xA7, 0x02, 0xA8, 0x01, 0xA9, 0x00, 0xAA, 0x00, 0xAB, 0x00, 0xAC, 0x20, 0xAD, 0x00, 0xAE, 0x00, 0xAF, 0x02, 0xB0, 0x27, 0xB1, 0x00, 0xB2, 0x00, 0xB3, 0x0F, 0xB4, 0x00, 0xB5, 0x00, 0xB6, 0x26, 0xB7, 0x0D, 0xB8, 0x6C, 0xB9, 0x00, 0xBA, 0x00, 0xBB, 0x00, 0xBC, 0x00, 0xBD, 0x00, 0xBE, 0x00 }; static SANE_Byte urb_outbufwaitfordata1_aes2501[0x04] = { 0x80, 0x01, 0x82, 0x40 }; static SANE_Byte urb_outbufwaitfordata2_aes2501[0x2a] = { 0x80, 0x01, 0x82, 0x40, 0x83, 0x00, 0x88, 0x02, 0x89, 0x10, 0x8A, 0x05, 0x8C, 0x00, 0x8E, 0x13, 0x91, 0x44, 0x92, 0x34, 0x95, 0x16, 0x96, 0x16, 0x97, 0x18, 0xA1, 0x70, 0xA2, 0x02, 0xA7, 0x00, 0xAC, 0x01, 0xAD, 0x1A, 0x80, 0x04, 0x81, 0x04, 0xB4, 0x00 }; static SANE_Byte urb_1810_aes2501[0x2a] = { /* urb 28 */ 0x80, 0x01, 0x82, 0x40, 0x83, 0x00, 0x88, 0x02, 0x89, 0x10, 0x8a, 0x05, 0x8c, 0x00, 0x8e, 0x13, 0x91, 0x44, 0x92, 0x34, 0x95, 0x16, 0x96, 0x16, 0x97, 0x18, 0xa1, 0x70, 0xa2, 0x02, 0xa7, 0x00, 0xac, 0x01, 0xad, 0x1a, 0x80, 0x04, 0x81, 0x04, 0xb4, 0x00 }; static SANE_Byte urb_inbufnodataavailable_aes2501[0x14] = { 0xF0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDF, 0x53, 0x35, 0x45, 0x43, 0x32, 0x43, 0x53, 0x35, 0x9A, 0x16 }; static SANE_Byte urb_outbufrequestheader_aes2501[0x04] = { 0x80, 0x01, 0x82, 0x40 }; static SANE_Byte urb_outbufrequestheader1_aes2501[0x32] = { 0x80, 0x01, 0x82, 0x40, 0x83, 0x00, 0x88, 0x02, 0x8C, 0x7C, 0x89, 0x10, 0x8D, 0x24, 0x9B, 0x01, 0x9C, 0x64, 0x9D, 0x67, 0x9E, 0x40, 0x9F, 0x0C, 0xA2, 0x02, 0xA7, 0x00, 0xB6, 0x26, 0xB7, 0x1A, 0x80, 0x04, 0x98, 0x23, 0x95, 0x10, 0x96, 0x1F, 0x8E, 0x00, 0x91, 0x70, 0x92, 0x20, 0x81, 0x04, 0xB4, 0x00 }; static SANE_Byte urb_outbufrequestheader2_aes2501[0x0e] = { 0x98, 0x23, 0x95, 0x10, 0x96, 0x1F, 0x8E, 0x03, 0x91, 0x70, 0x92, 0x20, 0x81, 0x04 }; static SANE_Byte urb_outbufrequestdata_aes2501[0x0e] = { 0x98, 0x22, 0x95, 0x00, 0x96, 0x2F, 0x8E, 0x03, 0x91, 0x27, 0x92, 0x25, 0x81, 0x04 }; static SANE_Byte urb_28_aes2501[0x0c] = { 0x80, 0x01, 0xa8, 0x41, 0x82, 0x42, 0x83, 0x53, 0x80, 0x04, 0x81, 0x02 }; static SANE_Byte urb_31_aes2501[0x0e] = { 0x80, 0x01, 0x82, 0x40, 0xb0, 0x27, 0x94, 0x0a, 0x80, 0x04, 0x83, 0x45, 0xa8, 0x41 }; /* mostly from urb init biopod */ static SANE_Byte urb_aes2501[0x7c] = { /* Set default values for the sensor fields */ 0xff, 0x00, /* 1, BIOPOD_SENSOR_GAIN_1,Gain rate multiple in 1st stage. */ /* .. 0 = 2x, 1=4x, 2=8x, 3=16x */ 0x8e, 0x01, /* 2, BIOPOD_SENSOR_GAIN_2, Gain rate multiple in 2nd stage. */ /* .. 0 = 2x, 1=4x, 2=8x, 3=16x */ 0x8e, 0x45, /* 3, BIOPOD_SENSOR_GAIN, Sensor gain (Combination of */ /* .. sensor gains 1 & 2. No longer used.) */ 0xFF, 0x00, /* 4, BIOPOD_CARRIER_NULL, Carrier Null (15..0) 0...-3.8V */ 0x90, 0x03, /* 5, BIOPOD_CARRIER_NULL_E, Carrier Null Enable */ 0x90, 0x44, /* 6, BIOPOD_AD_REF_HI, A/D Reference Hi (0-31).15625-5V */ 0x91, 0x06, /* 7, BIOPOD_AD_REF_LO, A/D Reference Lo (0-31).15625-5V */ 0x92, 0x06, /* 8, BIOPOD_FINGER_DETECT, Finger Detect Status bit, 1=ON */ 0x9b, 0x00, /* 9, BIOPOD_MEASURE_FREQ, Measure Frequency(0-7)125KHz-2MHz */ 0x8a, 0x02, /* 10, BIOPOD_MEASURE_DRIVE, Measure Drive (0-3) 0.3/1/2/4V */ 0x89, 0x01, /* 11, BIOPOD_DETECT_FREQ, Detect Frequency(0-7) 125KHz-2Mhz */ 0x87, 0x02, /* 12, BIOPOD_DETECT_DRIVE, Detect drive (0-3) 0.3/1/2/4V */ 0x86, 0x01, /* 13, BIOPOD_MAX_RES, Use max phase resolution */ 0x00, 0x00, /* 14, BIOPOD_COLUMN_SCAN_PER, Column Scan period (0-7) 64 uS */ /* .. to 2,048 uS. */ 0x88, 0x02, /* 15, BIOPOD_FING_DETECT_CAP, Finger detect capacitor (0-127) */ /* .. 93.75ff to 11.8 pf */ 0x85, 0x06, /* 16, BIOPOD_FING_DETECT_RES, Finger detect resistor (0-7) */ /* .. 500 Ohms to 4K Ohms */ 0x84, 0x02, /* 17, BIOPOD_Z_MATRIX_ENABLE, Z-matrix enable. */ 0x8f, 0x44, /* 18, BIOPOD_DEMOD_PHASE, Demodulation Phase. */ 0x8C, 0x06, /* 19, BIOPOD_REVISION_NUMBER, Chip revision number (chip type) */ 0x9D, 0x06, /* 20, BIOPOD_START_SCAN_ROW, Starting Image Scan Row. */ 0x93, 0x03, /* 21, BIOPOD_END_SCAN_ROW, Ending Image Scan Row. */ 0x94, 0x03, /* 22, BIOPOD_DRIVE_BOOST, Drive Boost Bit. */ 0x82, 0x44, /* 23, BIOPOD_NORM_PHASE, "Normalized" Phase (no longer used.) */ 0xFF, 0x00, /* 24, BIOPOD_IMAGE_DATA_DISABLE, Image Data Disable. */ 0x98, 0x00, /* 25, BIOPOD_HISTOGRAM_EACH_ROW, Histogram each row (subarray) */ 0x98, 0x22, /* 26, BIOPOD_MASTER_RESET, Master reset bit. */ 0x80, 0x00, /* 27, BIOPOD_SET_ONE_SHOT, One shot bit for a single scan. */ 0x81, 0x22, /* 28, BIOPOD_READ_REGISTERS, Read registers bit. */ 0x81, 0x11, /* 29, BIOPOD_CONTINUOUS_SCAN, Continuous scan bit. */ 0x81, 0x00, /* 30, BIOPOD_ASYNC_REGISTER_UPD, Update registers continuously */ 0x80, 0x22, /* 31, BIOPOD_EXCITATION_BIAS, Excitation bias current. */ 0x00, 0x00, /* 32, BIOPOD_DEBOUNCE_DELAY, Finger detect debounce delay. */ 0x83, 0x45, /* 33, BIOPOD_INTEGRATION_TIME, Scan integration time. */ 0x00, 0x00, /* 34, BIOPOD_SENSE_AMP_BIAS, Bias current for sense amps. */ 0x00, 0x00, /* 35, BIOPOD_Z_MATRIX_VPATT, Z-Matrix vertical pattern. */ 0x8B, 0x23, /* 36, BIOPOD_Z_MATRIX_HPATT, Z-Matrix horizontal pattern. */ 0x8B, 0x01, /* 37, BIOPOD_DEMOD_PHASE_1, Demodulation phase 1. */ 0x8D, 0x06, /* 38, BIOPOD_DEMOD_PHASE_2, Demodulation phase 2. */ 0x8C, 0x06, /* 39, BIOPOD_Z_MATRIX_POWER, Z-Matrix power mode, 1=all times */ 0x00, 0x00, /* 40, BIOPOD_SAMPLE_HOLD_BIAS, Sample/hold bias current. */ 0x00, 0x00, /* 41, BIOPOD_ANALOG_CHAN_BIAS, Analog channel bias current. */ 0x00, 0x00, /* 42, BIOPOD_START_COL, Starting column number. */ 0x95, 0x06, /* 43, BIOPOD_END_COL, Ending column number. */ 0x96, 0x06, /* 44, BIOPOD_DATA_FORMAT, Data format, 0=normal */ 0x00, 0x00, /* 45, BIOPOD_THRESHOLD, Threshold value for binary mode. */ 0x97, 0x03, /* 46, BIOPOD_TEST_REG_ENABLE, Enable sending of test registers */ 0x98, 0x55, /* 47, BIOPOD_HISTOGRAM_FULL_ARY, Histogram over full array. */ 0x98, 0x33, /* 48, BIOPOD_HISTOGRAM_ENABLE, Hardware histogram enable. */ 0x98, 0x11, /* 49, BIOPOD_GPO_0, General-purpose output (LED) 0. */ 0x99, 0x00, /* 50, BIOPOD_GPO_1, General-purpose output (LED) 1. */ 0x99, 0x11, /* 51, BIOPOD_GPO_2, General-purpose output (LED) 2. */ 0x99, 0x22, /* 52, BIOPOD_GPO_3, General-purpose output (LED) 3. */ 0x99, 0x33, /* 53, BIOPOD_Z_MATRIX_DOUBLER, Z-Matrix doubler enable. */ 0x8B, 0x55, /* 54, BIOPOD_CHALLENGE_1, Challenge word -- 1 of 5. */ 0x9B, 0x06, /* 55, BIOPOD_CHALLENGE_2, Challenge word -- 2 of 5. */ 0x9C, 0x06, /* 56, BIOPOD_CHALLENGE_3, Challenge word -- 3 of 5. */ 0x9D, 0x06, /* 57, BIOPOD_CHALLENGE_4, Challenge word -- 4 of 5. */ 0x9E, 0x06, /* 58, BIOPOD_CHALLENGE_5, Challenge word -- 5 of 5. */ 0x9F, 0x06, /* 59, BIOPOD_EXCITATION_SQUARE, Use square wave. */ 0x82, 0x55, /* 60, BIOPOD_FORCE_FINGER_ON, Force finger detect. */ 0xA2, 0x11, /* 61, BIOPOD_SSI_INT_ENABLE, Enable Sync. Serial Int. */ 0x81, 0x66 }; static SANE_Byte urb_init_biopod[0x7c] = { /* Set default values for the sensor fields */ 0xff, 0x00, /* 1, BIOPOD_SENSOR_GAIN_1,Gain rate multiple in 1st stage. */ /* .. 0 = 2x, 1=4x, 2=8x, 3=16x */ 0x8e, 0x01, /* 2, BIOPOD_SENSOR_GAIN_2, Gain rate multiple in 2nd stage. */ /* .. 0 = 2x, 1=4x, 2=8x, 3=16x */ 0x8e, 0x45, /* 3, BIOPOD_SENSOR_GAIN, Sensor gain (Combination of */ /* .. sensor gains 1 & 2. No longer used.) */ 0xFF, 0x00, /* 4, BIOPOD_CARRIER_NULL, Carrier Null (15..0) 0...-3.8V */ 0x90, 0x03, /* 5, BIOPOD_CARRIER_NULL_E, Carrier Null Enable */ 0x90, 0x44, /* 6, BIOPOD_AD_REF_HI, A/D Reference Hi (0-31).15625-5V */ 0x91, 0x06, /* 7, BIOPOD_AD_REF_LO, A/D Reference Lo (0-31).15625-5V */ 0x92, 0x06, /* 8, BIOPOD_FINGER_DETECT, Finger Detect Status bit, 1=ON */ 0x9b, 0x00, /* 9, BIOPOD_MEASURE_FREQ, Measure Frequency(0-7)125KHz-2MHz */ 0x8a, 0x02, /* 10, BIOPOD_MEASURE_DRIVE, Measure Drive (0-3) 0.3/1/2/4V */ 0x89, 0x01, /* 11, BIOPOD_DETECT_FREQ, Detect Frequency(0-7) 125KHz-2Mhz */ 0x87, 0x02, /* 12, BIOPOD_DETECT_DRIVE, Detect drive (0-3) 0.3/1/2/4V */ 0x86, 0x01, /* 13, BIOPOD_MAX_RES, Use max phase resolution */ 0x00, 0x00, /* 14, BIOPOD_COLUMN_SCAN_PER, Column Scan period (0-7) 64 uS */ /* .. to 2,048 uS. */ 0x88, 0x02, /* 15, BIOPOD_FING_DETECT_CAP, Finger detect capacitor (0-127) */ /* .. 93.75ff to 11.8 pf */ 0x85, 0x06, /* 16, BIOPOD_FING_DETECT_RES, Finger detect resistor (0-7) */ /* .. 500 Ohms to 4K Ohms */ 0x84, 0x02, /* 17, BIOPOD_Z_MATRIX_ENABLE, Z-matrix enable. */ 0x8f, 0x44, /* 18, BIOPOD_DEMOD_PHASE, Demodulation Phase. */ 0x8C, 0x06, /* 19, BIOPOD_REVISION_NUMBER, Chip revision number (chip type) */ 0x9D, 0x06, /* 20, BIOPOD_START_SCAN_ROW, Starting Image Scan Row. */ 0x93, 0x03, /* 21, BIOPOD_END_SCAN_ROW, Ending Image Scan Row. */ 0x94, 0x03, /* 22, BIOPOD_DRIVE_BOOST, Drive Boost Bit. */ 0x82, 0x44, /* 23, BIOPOD_NORM_PHASE, "Normalized" Phase (no longer used.) */ 0xFF, 0x00, /* 24, BIOPOD_IMAGE_DATA_DISABLE, Image Data Disable. */ 0x98, 0x00, /* 25, BIOPOD_HISTOGRAM_EACH_ROW, Histogram each row (subarray) */ 0x98, 0x22, /* 26, BIOPOD_MASTER_RESET, Master reset bit. */ 0x80, 0x00, /* 27, BIOPOD_SET_ONE_SHOT, One shot bit for a single scan. */ 0x81, 0x22, /* 28, BIOPOD_READ_REGISTERS, Read registers bit. */ 0x81, 0x11, /* 29, BIOPOD_CONTINUOUS_SCAN, Continuous scan bit. */ 0x81, 0x00, /* 30, BIOPOD_ASYNC_REGISTER_UPD, Update registers continuously */ 0x80, 0x22, /* 31, BIOPOD_EXCITATION_BIAS, Excitation bias current. */ 0x00, 0x00, /* 32, BIOPOD_DEBOUNCE_DELAY, Finger detect debounce delay. */ 0x83, 0x45, /* 33, BIOPOD_INTEGRATION_TIME, Scan integration time. */ 0x00, 0x00, /* 34, BIOPOD_SENSE_AMP_BIAS, Bias current for sense amps. */ 0x00, 0x00, /* 35, BIOPOD_Z_MATRIX_VPATT, Z-Matrix vertical pattern. */ 0x8B, 0x23, /* 36, BIOPOD_Z_MATRIX_HPATT, Z-Matrix horizontal pattern. */ 0x8B, 0x01, /* 37, BIOPOD_DEMOD_PHASE_1, Demodulation phase 1. */ 0x8D, 0x06, /* 38, BIOPOD_DEMOD_PHASE_2, Demodulation phase 2. */ 0x8C, 0x06, /* 39, BIOPOD_Z_MATRIX_POWER, Z-Matrix power mode, 1=all times */ 0x00, 0x00, /* 40, BIOPOD_SAMPLE_HOLD_BIAS, Sample/hold bias current. */ 0x00, 0x00, /* 41, BIOPOD_ANALOG_CHAN_BIAS, Analog channel bias current. */ 0x00, 0x00, /* 42, BIOPOD_START_COL, Starting column number. */ 0x95, 0x06, /* 43, BIOPOD_END_COL, Ending column number. */ 0x96, 0x06, /* 44, BIOPOD_DATA_FORMAT, Data format, 0=normal */ 0x00, 0x00, /* 45, BIOPOD_THRESHOLD, Threshold value for binary mode. */ 0x97, 0x03, /* 46, BIOPOD_TEST_REG_ENABLE, Enable sending of test registers */ 0x98, 0x55, /* 47, BIOPOD_HISTOGRAM_FULL_ARY, Histogram over full array. */ 0x98, 0x33, /* 48, BIOPOD_HISTOGRAM_ENABLE, Hardware histogram enable. */ 0x98, 0x11, /* 49, BIOPOD_GPO_0, General-purpose output (LED) 0. */ 0x99, 0x00, /* 50, BIOPOD_GPO_1, General-purpose output (LED) 1. */ 0x99, 0x11, /* 51, BIOPOD_GPO_2, General-purpose output (LED) 2. */ 0x99, 0x22, /* 52, BIOPOD_GPO_3, General-purpose output (LED) 3. */ 0x99, 0x33, /* 53, BIOPOD_Z_MATRIX_DOUBLER, Z-Matrix doubler enable. */ 0x8B, 0x55, /* 54, BIOPOD_CHALLENGE_1, Challenge word -- 1 of 5. */ 0x9B, 0x06, /* 55, BIOPOD_CHALLENGE_2, Challenge word -- 2 of 5. */ 0x9C, 0x06, /* 56, BIOPOD_CHALLENGE_3, Challenge word -- 3 of 5. */ 0x9D, 0x06, /* 57, BIOPOD_CHALLENGE_4, Challenge word -- 4 of 5. */ 0x9E, 0x06, /* 58, BIOPOD_CHALLENGE_5, Challenge word -- 5 of 5. */ 0x9F, 0x06, /* 59, BIOPOD_EXCITATION_SQUARE, Use square wave. */ 0x82, 0x55, /* 60, BIOPOD_FORCE_FINGER_ON, Force finger detect. */ 0xA2, 0x11, /* 61, BIOPOD_SSI_INT_ENABLE, Enable Sync. Serial Int. */ 0x81, 0x66 }; static SANE_Byte urb_size[0x08] = { 0x93, 0x00, 0x94, 0x0f, 0x95, 0x00, 0x96, 0xc0 }; static SANE_Byte urb_init_udrv[0x06] = { 0x80, 0x01, 0x81, 0x07, 0x97, 0x08 }; static SANE_Byte urb_init_write_udrv[0x06] = { 0x81, 0x07, 0x87, 0x01, 0x99, 0x0c /* swap byte between 0c and 0x at each write loop */ }; static SANE_Byte urb_init_read_udrv[0x08] = { 0x93, 0x00, 0x94, 0x01, 0x95, 0x00, 0x96, 0xbf };