153 lines
4.6 KiB
C
153 lines
4.6 KiB
C
/*
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* AuthenTec AES3500 driver for libfprint
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*
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* AES3500 is a press-typed sensor, which captures image in 128x128
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* pixels.
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*
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* Thanks Rafael Toledo for the Windows driver and the help.
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*
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* This work is derived from Daniel Drake's AES4000 driver.
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*
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* Copyright (C) 2011-2013 Juvenn Woo <machese@gmail.com>
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* Copyright (C) 2007-2008 Daniel Drake <dsd@gentoo.org>
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*
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* This library is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation; either version 2.1 of the
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* License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*/
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#define FP_COMPONENT "aes3500"
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#include "aes3k.h"
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#define DATA_BUFLEN 0x2089
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/* image size = FRAME_WIDTH x FRAME_WIDTH */
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#define FRAME_WIDTH 128
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#define FRAME_SIZE (FRAME_WIDTH * AES3K_FRAME_HEIGHT / 2)
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#define FRAME_NUMBER (FRAME_WIDTH / AES3K_FRAME_HEIGHT)
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#define ENLARGE_FACTOR 2
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static struct aes_regwrite init_reqs[] = {
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/* master reset */
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{ 0x80, 0x01 },
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{ 0, 0 },
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{ 0x80, 0x00 },
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{ 0, 0 },
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{ 0x81, 0x00 },
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{ 0x80, 0x00 },
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{ 0, 0 },
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/* scan reset */
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{ 0x80, 0x02 },
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{ 0, 0 },
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{ 0x80, 0x00 },
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{ 0, 0 },
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/* disable register buffering */
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{ 0x80, 0x04 },
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{ 0, 0 },
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{ 0x80, 0x00 },
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{ 0, 0 },
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{ 0x81, 0x00 },
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{ 0, 0 },
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/* windows driver reads registers now (81 02) */
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{ 0x80, 0x00 },
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{ 0x81, 0x00 },
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/* set excitation bias current: 2mhz drive ring frequency,
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* 4V drive ring voltage, 16.5mA excitation bias */
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{ 0x82, 0x04 },
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/* continuously sample drive ring for finger detection,
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* 62.50ms debounce delay */
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{ 0x83, 0x13 },
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{ 0x84, 0x07 }, /* set calibration resistance to 12 kiloohms */
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{ 0x85, 0x3d }, /* set calibration capacitance */
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{ 0x86, 0x03 }, /* detect drive voltage */
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{ 0x87, 0x01 }, /* set detection frequency to 125khz */
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{ 0x88, 0x02 }, /* set column scan period */
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{ 0x89, 0x02 }, /* set measure drive */
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{ 0x8a, 0x33 }, /* set measure frequency and sense amplifier bias */
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{ 0x8b, 0x33 }, /* set matrix pattern */
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{ 0x8c, 0x0f }, /* set demodulation phase 1 */
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{ 0x8d, 0x04 }, /* set demodulation phase 2 */
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{ 0x8e, 0x23 }, /* set sensor gain */
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{ 0x8f, 0x07 }, /* set image parameters */
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{ 0x90, 0x00 }, /* carrier offset null */
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{ 0x91, 0x1c }, /* set A/D reference high */
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{ 0x92, 0x08 }, /* set A/D reference low */
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{ 0x93, 0x00 }, /* set start row to 0 */
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{ 0x94, 0x07 }, /* set end row */
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{ 0x95, 0x00 }, /* set start column to 0 */
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{ 0x96, 0x1f }, /* set end column */
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{ 0x97, 0x04 }, /* data format and thresholds */
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{ 0x98, 0x28 }, /* image data control */
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{ 0x99, 0x00 }, /* disable general purpose outputs */
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{ 0x9a, 0x0b }, /* set initial scan state */
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{ 0x9b, 0x00 }, /* clear challenge word bits */
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{ 0x9c, 0x00 }, /* clear challenge word bits */
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{ 0x9d, 0x09 }, /* set some challenge word bits */
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{ 0x9e, 0x53 }, /* clear challenge word bits */
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{ 0x9f, 0x6b }, /* set some challenge word bits */
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{ 0, 0 },
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{ 0x80, 0x00 },
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{ 0x81, 0x00 },
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{ 0, 0 },
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{ 0x81, 0x04 },
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{ 0, 0 },
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{ 0x81, 0x00 },
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};
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struct _FpiDeviceAes3500 {
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FpiDeviceAes3k parent;
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};
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G_DECLARE_FINAL_TYPE(FpiDeviceAes3500, fpi_device_aes3500, FPI,
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DEVICE_AES3500, FpiDeviceAes3k);
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G_DEFINE_TYPE(FpiDeviceAes3500, fpi_device_aes3500, FPI_TYPE_DEVICE_AES3K);
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static const FpIdEntry id_table [ ] = {
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{ .vid = 0x08ff, .pid = 0x5731 },
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{ .vid = 0, .pid = 0, .driver_data = 0 },
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};
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static void fpi_device_aes3500_init(FpiDeviceAes3500 *self) {
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}
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static void fpi_device_aes3500_class_init(FpiDeviceAes3500Class *klass) {
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FpDeviceClass *dev_class = FP_DEVICE_CLASS(klass);
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FpImageDeviceClass *img_class = FP_IMAGE_DEVICE_CLASS(klass);
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FpiDeviceAes3kClass *aes_class = FPI_DEVICE_AES3K_CLASS (klass);
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dev_class->id = "aes3500";
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dev_class->full_name = "AuthenTec AES3500";
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dev_class->id_table = id_table;
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img_class->img_height = FRAME_WIDTH * ENLARGE_FACTOR;
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img_class->img_width = FRAME_WIDTH * ENLARGE_FACTOR;
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aes_class->data_buflen = DATA_BUFLEN;
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aes_class->frame_width = FRAME_WIDTH;
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aes_class->frame_size = FRAME_SIZE;
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aes_class->frame_number = FRAME_NUMBER;
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aes_class->enlarge_factor = ENLARGE_FACTOR;
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aes_class->init_reqs = init_reqs;
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aes_class->init_reqs_len = G_N_ELEMENTS(init_reqs);
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}
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