3f64b2ea5a
We now use fpi_get_usb_dev(FP_DEV()) instead.
183 lines
5 KiB
C
183 lines
5 KiB
C
/*
|
|
* AuthenTec AES3500 driver for libfprint
|
|
*
|
|
* AES3500 is a press-typed sensor, which captures image in 128x128
|
|
* pixels.
|
|
*
|
|
* Thanks Rafael Toledo for the Windows driver and the help.
|
|
*
|
|
* This work is derived from Daniel Drake's AES4000 driver.
|
|
*
|
|
* Copyright (C) 2011-2013 Juvenn Woo <machese@gmail.com>
|
|
* Copyright (C) 2007-2008 Daniel Drake <dsd@gentoo.org>
|
|
*
|
|
* This library is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU Lesser General Public License as
|
|
* published by the Free Software Foundation; either version 2.1 of the
|
|
* License, or (at your option) any later version.
|
|
*
|
|
* This library 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
|
* 02110-1301 USA
|
|
*/
|
|
|
|
#define FP_COMPONENT "aes3500"
|
|
|
|
#include "drivers_api.h"
|
|
#include "aeslib.h"
|
|
#include "aes3k.h"
|
|
|
|
#define DATA_BUFLEN 0x2089
|
|
|
|
/* image size = FRAME_WIDTH x FRAME_WIDTH */
|
|
#define FRAME_WIDTH 128
|
|
#define FRAME_SIZE (FRAME_WIDTH * AES3K_FRAME_HEIGHT / 2)
|
|
#define FRAME_NUMBER (FRAME_WIDTH / AES3K_FRAME_HEIGHT)
|
|
#define ENLARGE_FACTOR 2
|
|
|
|
|
|
static struct aes_regwrite init_reqs[] = {
|
|
/* master reset */
|
|
{ 0x80, 0x01 },
|
|
{ 0, 0 },
|
|
{ 0x80, 0x00 },
|
|
{ 0, 0 },
|
|
|
|
{ 0x81, 0x00 },
|
|
{ 0x80, 0x00 },
|
|
{ 0, 0 },
|
|
|
|
/* scan reset */
|
|
{ 0x80, 0x02 },
|
|
{ 0, 0 },
|
|
{ 0x80, 0x00 },
|
|
{ 0, 0 },
|
|
|
|
/* disable register buffering */
|
|
{ 0x80, 0x04 },
|
|
{ 0, 0 },
|
|
{ 0x80, 0x00 },
|
|
{ 0, 0 },
|
|
|
|
{ 0x81, 0x00 },
|
|
{ 0, 0 },
|
|
/* windows driver reads registers now (81 02) */
|
|
{ 0x80, 0x00 },
|
|
{ 0x81, 0x00 },
|
|
|
|
/* set excitation bias current: 2mhz drive ring frequency,
|
|
* 4V drive ring voltage, 16.5mA excitation bias */
|
|
{ 0x82, 0x04 },
|
|
|
|
/* continuously sample drive ring for finger detection,
|
|
* 62.50ms debounce delay */
|
|
{ 0x83, 0x13 },
|
|
|
|
{ 0x84, 0x07 }, /* set calibration resistance to 12 kiloohms */
|
|
{ 0x85, 0x3d }, /* set calibration capacitance */
|
|
{ 0x86, 0x03 }, /* detect drive voltage */
|
|
{ 0x87, 0x01 }, /* set detection frequency to 125khz */
|
|
{ 0x88, 0x02 }, /* set column scan period */
|
|
{ 0x89, 0x02 }, /* set measure drive */
|
|
{ 0x8a, 0x33 }, /* set measure frequency and sense amplifier bias */
|
|
{ 0x8b, 0x33 }, /* set matrix pattern */
|
|
{ 0x8c, 0x0f }, /* set demodulation phase 1 */
|
|
{ 0x8d, 0x04 }, /* set demodulation phase 2 */
|
|
{ 0x8e, 0x23 }, /* set sensor gain */
|
|
{ 0x8f, 0x07 }, /* set image parameters */
|
|
{ 0x90, 0x00 }, /* carrier offset null */
|
|
{ 0x91, 0x1c }, /* set A/D reference high */
|
|
{ 0x92, 0x08 }, /* set A/D reference low */
|
|
{ 0x93, 0x00 }, /* set start row to 0 */
|
|
{ 0x94, 0x07 }, /* set end row */
|
|
{ 0x95, 0x00 }, /* set start column to 0 */
|
|
{ 0x96, 0x1f }, /* set end column */
|
|
{ 0x97, 0x04 }, /* data format and thresholds */
|
|
{ 0x98, 0x28 }, /* image data control */
|
|
{ 0x99, 0x00 }, /* disable general purpose outputs */
|
|
{ 0x9a, 0x0b }, /* set initial scan state */
|
|
{ 0x9b, 0x00 }, /* clear challenge word bits */
|
|
{ 0x9c, 0x00 }, /* clear challenge word bits */
|
|
{ 0x9d, 0x09 }, /* set some challenge word bits */
|
|
{ 0x9e, 0x53 }, /* clear challenge word bits */
|
|
{ 0x9f, 0x6b }, /* set some challenge word bits */
|
|
{ 0, 0 },
|
|
|
|
{ 0x80, 0x00 },
|
|
{ 0x81, 0x00 },
|
|
{ 0, 0 },
|
|
{ 0x81, 0x04 },
|
|
{ 0, 0 },
|
|
{ 0x81, 0x00 },
|
|
};
|
|
|
|
static int dev_init(struct fp_img_dev *dev, unsigned long driver_data)
|
|
{
|
|
int r;
|
|
struct aes3k_dev *aesdev;
|
|
|
|
r = libusb_claim_interface(fpi_dev_get_usb_dev(FP_DEV(dev)), 0);
|
|
if (r < 0) {
|
|
fp_err("could not claim interface 0: %s", libusb_error_name(r));
|
|
return r;
|
|
}
|
|
|
|
aesdev = g_malloc0(sizeof(struct aes3k_dev));
|
|
fp_dev_set_instance_data(FP_DEV(dev), aesdev);
|
|
|
|
if (!aesdev)
|
|
return -ENOMEM;
|
|
|
|
aesdev->data_buflen = DATA_BUFLEN;
|
|
aesdev->frame_width = FRAME_WIDTH;
|
|
aesdev->frame_size = FRAME_SIZE;
|
|
aesdev->frame_number = FRAME_NUMBER;
|
|
aesdev->enlarge_factor = ENLARGE_FACTOR;
|
|
aesdev->init_reqs = init_reqs;
|
|
aesdev->init_reqs_len = G_N_ELEMENTS(init_reqs);
|
|
fpi_imgdev_open_complete(dev, 0);
|
|
|
|
return r;
|
|
}
|
|
|
|
static void dev_deinit(struct fp_img_dev *dev)
|
|
{
|
|
struct aes3k_dev *aesdev = FP_INSTANCE_DATA(FP_DEV(dev));
|
|
g_free(aesdev);
|
|
libusb_release_interface(fpi_dev_get_usb_dev(FP_DEV(dev)), 0);
|
|
fpi_imgdev_close_complete(dev);
|
|
}
|
|
|
|
|
|
static const struct usb_id id_table[] = {
|
|
{ .vendor = 0x08ff, .product = 0x5731 },
|
|
{ 0, 0, 0, },
|
|
};
|
|
|
|
struct fp_img_driver aes3500_driver = {
|
|
.driver = {
|
|
.id = AES3500_ID,
|
|
.name = FP_COMPONENT,
|
|
.full_name = "AuthenTec AES3500",
|
|
.id_table = id_table,
|
|
.scan_type = FP_SCAN_TYPE_PRESS,
|
|
},
|
|
.flags = 0,
|
|
.img_height = FRAME_WIDTH * ENLARGE_FACTOR,
|
|
.img_width = FRAME_WIDTH * ENLARGE_FACTOR,
|
|
|
|
/* temporarily lowered until image quality improves */
|
|
.bz3_threshold = 9,
|
|
|
|
.open = dev_init,
|
|
.close = dev_deinit,
|
|
.activate = aes3k_dev_activate,
|
|
.deactivate = aes3k_dev_deactivate,
|
|
};
|
|
|