12c1088777
AES3500 and AES4000 are pretty similar devices, have same command send, the only difference is in image size and init sequence. Extract common routines from AES4K to be used later in AES3500 driver https://bugs.freedesktop.org/show_bug.cgi?id=64351
59 lines
2.1 KiB
C
59 lines
2.1 KiB
C
/*
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* AuthenTec AES3500/AES4000 common routines
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*
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* The AES3500 and AES4000 sensors are press-typed, and could capture
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* fingerprint images in 128x128 and 96x96 pixels respectively. They
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* share a same communication interface: a number of frames are
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* transferred and captured, from which a final image could be
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* assembled. Each frame has fixed height of 16 pixels.
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*
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* As the imaging area is a bit small, only a part of finger could be
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* captured, the detected minutiae are not so many that the NBIS
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* matching works not so good. The verification rate is very low at the
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* moment.
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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) 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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*/
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#ifndef __AES3K_H
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#define __AES3K_H
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#define AES3K_FRAME_HEIGHT 16
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struct aes3k_dev {
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struct libusb_transfer *img_trf;
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size_t frame_width; /* image size = frame_width x frame_width */
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size_t frame_size; /* 4 bits/pixel: frame_width x AES3K_FRAME_HEIGHT / 2 */
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size_t frame_number; /* number of frames */
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size_t enlarge_factor;
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size_t data_buflen; /* buffer length of usb bulk transfer */
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struct aes_regwrite *init_reqs; /* initial values sent to device */
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size_t init_reqs_len;
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};
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int aes3k_dev_activate(struct fp_img_dev *dev, enum fp_imgdev_state state);
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void aes3k_dev_deactivate(struct fp_img_dev *dev);
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#endif
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