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aes3k: add aes3500 driver
This driver supports AES3500 device (08ff:5731) and utilizes common routines from AES4000.
This commit is contained in:
Juvenn Woo
committed by
Vasily Khoruzhick
Vasily Khoruzhick
parent
12c1088777
commit
aeca32fc12
188
libfprint/drivers/aes3500.c
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188
libfprint/drivers/aes3500.c
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@@ -0,0 +1,188 @@
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/*
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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 <errno.h>
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#include <glib.h>
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#include <libusb.h>
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#include <aeslib.h>
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#include <fp_internal.h>
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#include "aes3k.h"
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#include "driver_ids.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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static int dev_init(struct fp_img_dev *dev, unsigned long driver_data)
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{
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int r;
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struct aes3k_dev *aesdev;
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r = libusb_claim_interface(dev->udev, 0);
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if (r < 0)
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fp_err("could not claim interface 0");
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aesdev = dev->priv = g_malloc0(sizeof(struct aes3k_dev));
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if (!aesdev)
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return -ENOMEM;
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if (r == 0)
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aesdev->data_buflen = DATA_BUFLEN;
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aesdev->frame_width = FRAME_WIDTH;
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aesdev->frame_size = FRAME_SIZE;
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aesdev->frame_number = FRAME_NUMBER;
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aesdev->enlarge_factor = ENLARGE_FACTOR;
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aesdev->init_reqs = init_reqs;
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aesdev->init_reqs_len = G_N_ELEMENTS(init_reqs);
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fpi_imgdev_open_complete(dev, 0);
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return r;
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}
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static void dev_deinit(struct fp_img_dev *dev)
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{
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struct aes3k_dev *aesdev = dev->priv;
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g_free(aesdev);
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libusb_release_interface(dev->udev, 0);
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fpi_imgdev_close_complete(dev);
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}
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static const struct usb_id id_table[] = {
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{ .vendor = 0x08ff, .product = 0x5731 },
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{ 0, 0, 0, },
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};
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struct fp_img_driver aes3500_driver = {
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.driver = {
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.id = AES3500_ID,
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.name = FP_COMPONENT,
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.full_name = "AuthenTec AES3500",
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.id_table = id_table,
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.scan_type = FP_SCAN_TYPE_PRESS,
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},
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.flags = 0,
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.img_height = FRAME_WIDTH * ENLARGE_FACTOR,
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.img_width = FRAME_WIDTH * ENLARGE_FACTOR,
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/* temporarily lowered until image quality improves */
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.bz3_threshold = 9,
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.open = dev_init,
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.close = dev_deinit,
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.activate = aes3k_dev_activate,
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.deactivate = aes3k_dev_deactivate,
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};
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@@ -36,6 +36,7 @@ enum {
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UPEKE2_ID = 13,
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AES1660_ID = 14,
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AES2660_ID = 15,
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AES3500_ID = 16,
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};
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#endif
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