depau/libfprint
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

lib: Add AES2550/AES2810 driver

Browse source 
Initial implementation of AES2550/AES2810 driver.
Does not support AES2810 crypto engine and external flash.

https://bugs.freedesktop.org/show_bug.cgi?id=50859
This commit is contained in:
Vasily Khoruzhick 2012-10-09 01:20:44 +03:00 committed by Bastien Nocera
parent 132b178304
commit 83333bce3f
6 changed files with 880 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

14
configure.ac
View file

@ -23,7 +23,7 @@ AC_SUBST(lt_major)
AC_SUBST(lt_revision)
AC_SUBST(lt_age)
all_drivers="upeke2 upekts upektc upeksonly vcom5s uru4000 fdu2000 aes1610 aes2501 aes4000 vfs101 vfs301"
all_drivers="upeke2 upekts upektc upeksonly vcom5s uru4000 fdu2000 aes1610 aes2501 aes2550 aes4000 vfs101 vfs301"
require_imaging='no'
require_aeslib='no'
@ -36,6 +36,7 @@ enable_uru4000='no'
enable_fdu2000='no'
enable_aes1610='no'
enable_aes2501='no'
enable_aes2550='no'
enable_aes4000='no'
enable_vfs101='no'
enable_vfs301='no'
@ -82,6 +83,11 @@ for driver in `echo ${drivers} | sed -e 's/,/ /g' -e 's/,$//g'`; do
require_aeslib="yes"
enable_aes2501="yes"
;;
aes2550)
AC_DEFINE([ENABLE_AES2550], [], [Build AuthenTec AES2550/AES2810 driver])
require_aeslib="yes"
enable_aes2550="yes"
;;
aes1610)
AC_DEFINE([ENABLE_AES1610], [], [Build AuthenTec AES1610 driver])
require_aeslib="yes"
@ -113,6 +119,7 @@ AM_CONDITIONAL([ENABLE_URU4000], [test "$enable_uru4000" = "yes"])
AM_CONDITIONAL([ENABLE_FDU2000], [test "$enable_fdu2000" = "yes"])
AM_CONDITIONAL([ENABLE_AES1610], [test "$enable_aes1610" = "yes"])
AM_CONDITIONAL([ENABLE_AES2501], [test "$enable_aes2501" = "yes"])
AM_CONDITIONAL([ENABLE_AES2550], [test "$enable_aes2550" = "yes"])
AM_CONDITIONAL([ENABLE_AES4000], [test "$enable_aes4000" = "yes"])
AM_CONDITIONAL([REQUIRE_AESLIB], [test "$require_aeslib" = "yes"])
AM_CONDITIONAL([ENABLE_VFS101], [test "$enable_vfs101" = "yes"])
@ -294,6 +301,11 @@ if test x$enable_aes2501 != xno ; then
else
AC_MSG_NOTICE([ aes2501 driver disabled])
fi
if test x$enable_aes2550 != xno ; then
AC_MSG_NOTICE([** aes2550/aes2810 driver enabled])
else
AC_MSG_NOTICE([ aes2550/aes2810 driver disabled])
fi
if test x$enable_aes4000 != xno ; then
AC_MSG_NOTICE([** aes4000 driver enabled])
else

6
libfprint/Makefile.am
View file

@ -9,6 +9,7 @@ UPEKSONLY_SRC = drivers/upeksonly.c
URU4000_SRC = drivers/uru4000.c
AES1610_SRC = drivers/aes1610.c
AES2501_SRC = drivers/aes2501.c drivers/aes2501.h
AES2550_SRC = drivers/aes2550.c drivers/aes2550.h
AES4000_SRC = drivers/aes4000.c
FDU2000_SRC = drivers/fdu2000.c
VCOM5S_SRC = drivers/vcom5s.c
@ -23,6 +24,7 @@ EXTRA_DIST = \
$(URU4000_SRC) \
$(AES1610_SRC) \
$(AES2501_SRC) \
$(AES2550_SRC) \
$(AES4000_SRC) \
$(FDU2000_SRC) \
$(VCOM5S_SRC) \
@ -124,6 +126,10 @@ if ENABLE_AES2501
DRIVER_SRC += $(AES2501_SRC)
endif
if ENABLE_AES2550
DRIVER_SRC += $(AES2550_SRC)
endif
if ENABLE_AES4000
DRIVER_SRC += $(AES4000_SRC)
endif

3
libfprint/core.c
View file

@ -355,6 +355,9 @@ static struct fp_img_driver * const img_drivers[] = {
#ifdef ENABLE_AES2501
&aes2501_driver,
#endif
#ifdef ENABLE_AES2550
&aes2550_driver,
#endif
#ifdef ENABLE_URU4000
&uru4000_driver,
#endif

741
libfprint/drivers/aes2550.c Normal file
View file

@ -0,0 +1,741 @@
/*
* AuthenTec AES2550/AES2810 driver for libfprint
* Copyright (C) 2007-2008 Daniel Drake <dsd@gentoo.org>
* Copyright (C) 2007 Cyrille Bagard
* Copyright (C) 2007-2012 Vasily Khoruzhick
*
* Based on AES2501 driver
*
* 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 "aes2550"
#include <errno.h>
#include <string.h>
#include <libusb.h>
#include <aeslib.h>
#include <fp_internal.h>
#include "aes2550.h"
static void start_capture(struct fp_img_dev *dev);
static void complete_deactivation(struct fp_img_dev *dev);
#define EP_IN (1 | LIBUSB_ENDPOINT_IN)
#define EP_OUT (2 | LIBUSB_ENDPOINT_OUT)
#define BULK_TIMEOUT 4000
/*
* The AES2550 is an imaging device using a swipe-type sensor. It samples
* the finger at preprogrammed intervals, sending a 192x16 frame to the
* computer.
* Unless the user is scanning their finger unreasonably fast, the frames
* *will* overlap. The implementation below detects this overlap and produces
* a contiguous image as the end result.
* The fact that the user determines the length of the swipe (and hence the
* number of useful frames) and also the fact that overlap varies means that
* images returned from this driver vary in height.
*/
#define FRAME_WIDTH 192
#define FRAME_HEIGHT 8
#define FRAME_SIZE (FRAME_WIDTH * FRAME_HEIGHT)
struct aes2550_dev {
GSList *strips;
size_t strips_len;
gboolean deactivating;
};
/****** IMAGE PROCESSING ******/
/* find overlapping parts of frames */
static unsigned int find_overlap(unsigned char *first_frame,
unsigned char *second_frame, unsigned int *min_error)
{
unsigned int dy;
unsigned int not_overlapped_height = 0;
/* 255 is highest brightness value for an 8bpp image */
*min_error = 255 * FRAME_SIZE;
for (dy = 0; dy < FRAME_HEIGHT; dy++) {
/* Calculating difference (error) between parts of frames */
unsigned int i;
unsigned int error = 0;
for (i = 0; i < FRAME_WIDTH * (FRAME_HEIGHT - dy); i++) {
/* Using ? operator to avoid abs function */
error += first_frame[i] > second_frame[i] ?
(first_frame[i] - second_frame[i]) :
(second_frame[i] - first_frame[i]);
}
/* Normalize error */
error *= 15;
error /= i;
if (error < *min_error) {
*min_error = error;
not_overlapped_height = dy;
}
first_frame += FRAME_WIDTH;
}
return not_overlapped_height;
}
/* assemble a series of frames into a single image */
static unsigned int assemble(struct aes2550_dev *aesdev, unsigned char *output,
gboolean reverse, unsigned int *errors_sum)
{
uint8_t *assembled = output;
int frame;
uint32_t image_height = FRAME_HEIGHT;
unsigned int min_error;
size_t num_strips = aesdev->strips_len;
GSList *list_entry = aesdev->strips;
*errors_sum = 0;
if (reverse)
output += (num_strips - 1) * FRAME_SIZE;
for (frame = 0; frame < num_strips; frame++) {
aes_assemble_image(list_entry->data, FRAME_WIDTH, FRAME_HEIGHT, output);
if (reverse)
output -= FRAME_SIZE;
else
output += FRAME_SIZE;
list_entry = g_slist_next(list_entry);
}
/* Detecting where frames overlaped */
output = assembled;
for (frame = 1; frame < num_strips; frame++) {
int not_overlapped;
output += FRAME_SIZE;
not_overlapped = find_overlap(assembled, output, &min_error);
*errors_sum += min_error;
image_height += not_overlapped;
assembled += FRAME_WIDTH * not_overlapped;
memcpy(assembled, output, FRAME_SIZE);
}
return image_height;
}
static void assemble_and_submit_image(struct fp_img_dev *dev)
{
struct aes2550_dev *aesdev = dev->priv;
size_t final_size;
struct fp_img *img;
unsigned int errors_sum, r_errors_sum;
BUG_ON(aesdev->strips_len == 0);
/* reverse list */
aesdev->strips = g_slist_reverse(aesdev->strips);
/* create buffer big enough for max image */
img = fpi_img_new(aesdev->strips_len * FRAME_SIZE);
img->flags = FP_IMG_COLORS_INVERTED;
img->height = assemble(aesdev, img->data, FALSE, &errors_sum);
img->height = assemble(aesdev, img->data, TRUE, &r_errors_sum);
if (r_errors_sum > errors_sum) {
img->height = assemble(aesdev, img->data, FALSE, &errors_sum);
img->flags |= FP_IMG_V_FLIPPED | FP_IMG_H_FLIPPED;
fp_dbg("normal scan direction");
} else {
fp_dbg("reversed scan direction");
}
/* now that overlap has been removed, resize output image buffer */
final_size = img->height * FRAME_WIDTH;
img = fpi_img_resize(img, final_size);
fpi_imgdev_image_captured(dev, img);
/* free strips and strip list */
g_slist_foreach(aesdev->strips, (GFunc) g_free, NULL);
g_slist_free(aesdev->strips);
aesdev->strips = NULL;
aesdev->strips_len = 0;
}
/****** FINGER PRESENCE DETECTION ******/
static unsigned char finger_det_reqs[] = {
0x80, AES2550_REG80_MASTER_RESET,
0x95, (8 << AES2550_REG95_COL_SCANNED_OFS) | (1 << AES2550_REG95_EPIX_AVG_OFS),
0xad, 0x00,
0xbd, (0 << AES2550_REGBD_LPO_IN_15_8_OFS),
0xbe, (0 << AES2550_REGBE_LPO_IN_7_0_OFS),
0xcf, AES2550_REGCF_INTERFERENCE_CHK_EN,
AES2550_CMD_HEARTBEAT, 0x00, 0x01, 0x00, /* Heart beat off */
AES2550_CMD_RUN_FD,
};
static void start_finger_detection(struct fp_img_dev *dev);
static void finger_det_data_cb(struct libusb_transfer *transfer)
{
struct fp_img_dev *dev = transfer->user_data;
unsigned char *data = transfer->buffer;
if (transfer->status != LIBUSB_TRANSFER_COMPLETED) {
fp_dbg("data transfer status %d\n", transfer->status);
fpi_imgdev_session_error(dev, -EIO);
goto out;
}
fp_dbg("transfer completed, len: %.4x, data: %.2x %.2x",
transfer->actual_length, (int)data[0], (int)data[1]);
/* Check if we got 2 bytes, reg address 0x83 and its value */
if ((transfer->actual_length >= 2) && (data[0] == 0x83) && (data[1] & AES2550_REG83_FINGER_PRESENT)) {
/* finger present, start capturing */
fpi_imgdev_report_finger_status(dev, TRUE);
start_capture(dev);
} else {
/* no finger, poll for a new histogram */
start_finger_detection(dev);
}
out:
g_free(data);
libusb_free_transfer(transfer);
}
static void finger_det_reqs_cb(struct libusb_transfer *t)
{
struct libusb_transfer *transfer;
unsigned char *data;
int r;
struct fp_img_dev *dev = t->user_data;
if (t->status != LIBUSB_TRANSFER_COMPLETED) {
fp_dbg("req transfer status %d\n", t->status);
fpi_imgdev_session_error(dev, -EIO);
goto exit_free_transfer;
} else if (t->length != t->actual_length) {
fp_dbg("expected %d, got %d bytes", t->length, t->actual_length);
fpi_imgdev_session_error(dev, -EPROTO);
goto exit_free_transfer;
}
transfer = libusb_alloc_transfer(0);
if (!transfer) {
fpi_imgdev_session_error(dev, -ENOMEM);
goto exit_free_transfer;
}
/* 2 bytes of result */
data = g_malloc(AES2550_EP_IN_BUF_SIZE);
libusb_fill_bulk_transfer(transfer, dev->udev, EP_IN, data, AES2550_EP_IN_BUF_SIZE,
finger_det_data_cb, dev, BULK_TIMEOUT);
r = libusb_submit_transfer(transfer);
if (r < 0) {
g_free(data);
libusb_free_transfer(transfer);
fpi_imgdev_session_error(dev, r);
}
exit_free_transfer:
libusb_free_transfer(t);
}
static void start_finger_detection(struct fp_img_dev *dev)
{
int r;
struct aes2550_dev *aesdev = dev->priv;
struct libusb_transfer *transfer;
fp_dbg("");
if (aesdev->deactivating) {
complete_deactivation(dev);
return;
}
transfer = libusb_alloc_transfer(0);
if (!transfer) {
fpi_imgdev_session_error(dev, -ENOMEM);
return;
}
libusb_fill_bulk_transfer(transfer, dev->udev, EP_OUT, finger_det_reqs,
sizeof(finger_det_reqs), finger_det_reqs_cb, dev, BULK_TIMEOUT);
r = libusb_submit_transfer(transfer);
if (r < 0) {
libusb_free_transfer(transfer);
fpi_imgdev_session_error(dev, r);
}
}
/****** CAPTURE ******/
static unsigned char capture_reqs[] = {
0x80, AES2550_REG80_MASTER_RESET,
0x80, (1 << AES2550_REG80_SENSOR_MODE_OFS) | (AES2550_REG80_HGC_ENABLE),
0x85, AES2550_REG85_FLUSH_PER_FRAME,
0x8f, AES2550_REG8F_AUTH_DISABLE | AES2550_REG8F_EHISTO_DISABLE,
0xbf, AES2550_REGBF_RSR_DIR_UPDOWN_MOTION | AES2550_REGBF_RSR_LEVEL_SUPER_RSR,
0xcf, (3 << AES2550_REGCF_INTERFERENCE_AVG_OFFS) | AES2550_REGCF_INTERFERENCE_AVG_EN,
0xdc, (1 << AES2550_REGDC_BP_NUM_REF_SWEEP_OFS),
AES2550_CMD_HEARTBEAT, 0x00, 0x01, 0x03, /* Heart beat cmd, 3 * 16 cycles without sending image */
AES2550_CMD_GET_ENROLL_IMG,
};
static unsigned char capture_set_idle_reqs[] = {
0x80, AES2550_REG80_MASTER_RESET,
AES2550_CMD_HEARTBEAT, 0x00, 0x01, 0x00, /* Heart beat off */
AES2550_CMD_SET_IDLE_MODE,
};
enum capture_states {
CAPTURE_WRITE_REQS,
CAPTURE_READ_DATA,
CAPTURE_SET_IDLE,
CAPTURE_NUM_STATES,
};
/* Returns number of processed bytes */
static int process_strip_data(struct fpi_ssm *ssm, unsigned char *data)
{
unsigned char *stripdata;
struct fp_img_dev *dev = ssm->priv;
struct aes2550_dev *aesdev = dev->priv;
int len;
if (data[0] != AES2550_EDATA_MAGIC) {
fp_dbg("Bogus magic: %.2x\n", (int)(data[0]));
return -EPROTO;
}
len = data[1] * 256 + data[2];
if (len != (AES2550_STRIP_SIZE - 3)) {
fp_dbg("Bogus frame len: %.4x\n", len);
}
stripdata = g_malloc(FRAME_WIDTH * FRAME_HEIGHT / 2); /* 4 bits per pixel */
if (!stripdata) {
fpi_ssm_mark_aborted(ssm, -ENOMEM);
return -ENOMEM;
}
memcpy(stripdata, data + 33, FRAME_WIDTH * FRAME_HEIGHT / 2);
aesdev->strips = g_slist_prepend(aesdev->strips, stripdata);
aesdev->strips_len++;
return 0;
}
static void capture_reqs_cb(struct libusb_transfer *transfer)
{
struct fpi_ssm *ssm = transfer->user_data;
if ((transfer->status == LIBUSB_TRANSFER_COMPLETED) &&
(transfer->length == transfer->actual_length)) {
fpi_ssm_next_state(ssm);
} else {
fpi_ssm_mark_aborted(ssm, -EIO);
}
libusb_free_transfer(transfer);
}
static void capture_set_idle_reqs_cb(struct libusb_transfer *transfer)
{
struct fpi_ssm *ssm = transfer->user_data;
struct fp_img_dev *dev = ssm->priv;
if ((transfer->status == LIBUSB_TRANSFER_COMPLETED) &&
(transfer->length == transfer->actual_length)) {
assemble_and_submit_image(dev);
fpi_imgdev_report_finger_status(dev, FALSE);
/* marking machine complete will re-trigger finger detection loop */
fpi_ssm_mark_completed(ssm);
} else {
fpi_ssm_mark_aborted(ssm, -EIO);
}
libusb_free_transfer(transfer);
}
static void capture_read_data_cb(struct libusb_transfer *transfer)
{
struct fpi_ssm *ssm = transfer->user_data;
unsigned char *data = transfer->buffer;
int r;
if (transfer->status != LIBUSB_TRANSFER_COMPLETED) {
fp_dbg("request is not completed, %d", transfer->status);
fpi_ssm_mark_aborted(ssm, -EIO);
goto out;
}
fp_dbg("request completed, len: %.4x", transfer->actual_length);
if (transfer->actual_length >= 2)
fp_dbg("data: %.2x %.2x", (int)data[0], (int)data[1]);
switch (transfer->actual_length) {
case AES2550_STRIP_SIZE:
r = process_strip_data(ssm, data);
if (r < 0) {
fp_dbg("Processing strip data failed: %d", r);
fpi_ssm_mark_aborted(ssm, -EPROTO);
goto out;
}
fpi_ssm_jump_to_state(ssm, CAPTURE_READ_DATA);
break;
case AES2550_HEARTBEAT_SIZE:
if (data[0] == AES2550_HEARTBEAT_MAGIC) {
/* No data for a long time, looks like finger was removed (or no movement) */
/* assemble image and submit it to library */
fp_dbg("Got heartbeat => last frame");
fpi_ssm_next_state(ssm);
}
break;
default:
fp_dbg("Short frame %d, skip", transfer->actual_length);
fpi_ssm_jump_to_state(ssm, CAPTURE_READ_DATA);
break;
}
out:
g_free(transfer->buffer);
libusb_free_transfer(transfer);
}
static void capture_run_state(struct fpi_ssm *ssm)
{
struct fp_img_dev *dev = ssm->priv;
int r;
switch (ssm->cur_state) {
case CAPTURE_WRITE_REQS:
{
struct libusb_transfer *transfer = libusb_alloc_transfer(0);
if (!transfer) {
fpi_ssm_mark_aborted(ssm, -ENOMEM);
return;
}
libusb_fill_bulk_transfer(transfer, dev->udev, EP_OUT, capture_reqs,
sizeof(capture_reqs), capture_reqs_cb, ssm, BULK_TIMEOUT);
r = libusb_submit_transfer(transfer);
if (r < 0) {
libusb_free_transfer(transfer);
fpi_ssm_mark_aborted(ssm, -ENOMEM);
}
}
break;
case CAPTURE_READ_DATA:
{
struct libusb_transfer *transfer = libusb_alloc_transfer(0);
unsigned char *data;
if (!transfer) {
fpi_ssm_mark_aborted(ssm, -ENOMEM);
break;
}
data = g_malloc(AES2550_EP_IN_BUF_SIZE);
libusb_fill_bulk_transfer(transfer, dev->udev, EP_IN, data, AES2550_EP_IN_BUF_SIZE,
capture_read_data_cb, ssm, BULK_TIMEOUT);
r = libusb_submit_transfer(transfer);
if (r < 0) {
g_free(data);
libusb_free_transfer(transfer);
fpi_ssm_mark_aborted(ssm, r);
}
}
break;
case CAPTURE_SET_IDLE:
{
struct libusb_transfer *transfer = libusb_alloc_transfer(0);
if (!transfer) {
fpi_ssm_mark_aborted(ssm, -ENOMEM);
return;
}
libusb_fill_bulk_transfer(transfer, dev->udev, EP_OUT, capture_set_idle_reqs,
sizeof(capture_set_idle_reqs), capture_set_idle_reqs_cb, ssm, BULK_TIMEOUT);
r = libusb_submit_transfer(transfer);
if (r < 0) {
libusb_free_transfer(transfer);
fpi_ssm_mark_aborted(ssm, -ENOMEM);
}
}
break;
};
}
static void capture_sm_complete(struct fpi_ssm *ssm)
{
struct fp_img_dev *dev = ssm->priv;
struct aes2550_dev *aesdev = dev->priv;
fp_dbg("Capture completed");
if (aesdev->deactivating)
complete_deactivation(dev);
else if (ssm->error)
fpi_imgdev_session_error(dev, ssm->error);
else
start_finger_detection(dev);
fpi_ssm_free(ssm);
}
static void start_capture(struct fp_img_dev *dev)
{
struct aes2550_dev *aesdev = dev->priv;
struct fpi_ssm *ssm;
if (aesdev->deactivating) {
complete_deactivation(dev);
return;
}
ssm = fpi_ssm_new(dev->dev, capture_run_state, CAPTURE_NUM_STATES);
fp_dbg("");
ssm->priv = dev;
fpi_ssm_start(ssm, capture_sm_complete);
}
/****** INITIALIZATION/DEINITIALIZATION ******/
static unsigned char init_reqs[] = {
0x80, AES2550_REG80_MASTER_RESET, /* Master reset */
0x80, (1 << AES2550_REG80_SENSOR_MODE_OFS) | (AES2550_REG80_FORCE_FINGER_PRESENT),
0x85, AES2550_REG85_FLUSH_PER_FRAME,
0xa8, AES2550_REGA8_DIG_BIT_EN,
0x81, AES2550_REG81_NSHOT,
};
static unsigned char calibrate_reqs[] = {
0x80, AES2550_REG80_MASTER_RESET, /* Master reset */
AES2550_CMD_CALIBRATE,
AES2550_CMD_READ_CALIBRATION_DATA,
};
enum activate_states {
WRITE_INIT,
READ_DATA,
CALIBRATE,
READ_CALIB_TABLE,
ACTIVATE_NUM_STATES,
};
static void init_reqs_cb(struct libusb_transfer *transfer)
{
struct fpi_ssm *ssm = transfer->user_data;
if ((transfer->status == LIBUSB_TRANSFER_COMPLETED) &&
(transfer->length == transfer->actual_length)) {
fpi_ssm_next_state(ssm);
} else {
fpi_ssm_mark_aborted(ssm, -EIO);
}
libusb_free_transfer(transfer);
}
static void init_read_data_cb(struct libusb_transfer *transfer)
{
struct fpi_ssm *ssm = transfer->user_data;
if (transfer->status == LIBUSB_TRANSFER_COMPLETED) {
fpi_ssm_next_state(ssm);
} else {
fpi_ssm_mark_aborted(ssm, -EIO);
}
g_free(transfer->buffer);
libusb_free_transfer(transfer);
}
/* TODO: use calibration table, datasheet is rather terse on that
* need more info for implementaion */
static void calibrate_read_data_cb(struct libusb_transfer *transfer)
{
struct fpi_ssm *ssm = transfer->user_data;
if (transfer->status == LIBUSB_TRANSFER_COMPLETED) {
fpi_ssm_next_state(ssm);
} else {
fpi_ssm_mark_aborted(ssm, -EIO);
}
g_free(transfer->buffer);
libusb_free_transfer(transfer);
}
static void activate_run_state(struct fpi_ssm *ssm)
{
struct fp_img_dev *dev = ssm->priv;
int r;
switch (ssm->cur_state) {
case WRITE_INIT:
{
struct libusb_transfer *transfer = libusb_alloc_transfer(0);
if (!transfer) {
fpi_ssm_mark_aborted(ssm, -ENOMEM);
return;
}
libusb_fill_bulk_transfer(transfer, dev->udev, EP_OUT, init_reqs,
sizeof(init_reqs), init_reqs_cb, ssm, BULK_TIMEOUT);
r = libusb_submit_transfer(transfer);
if (r < 0) {
libusb_free_transfer(transfer);
fpi_ssm_mark_aborted(ssm, -ENOMEM);
}
}
break;
case READ_DATA:
{
struct libusb_transfer *transfer = libusb_alloc_transfer(0);
unsigned char *data;
if (!transfer) {
fpi_ssm_mark_aborted(ssm, -ENOMEM);
break;
}
data = g_malloc(AES2550_EP_IN_BUF_SIZE);
libusb_fill_bulk_transfer(transfer, dev->udev, EP_IN, data, AES2550_EP_IN_BUF_SIZE,
init_read_data_cb, ssm, BULK_TIMEOUT);
r = libusb_submit_transfer(transfer);
if (r < 0) {
g_free(data);
libusb_free_transfer(transfer);
fpi_ssm_mark_aborted(ssm, r);
}
}
break;
case CALIBRATE:
{
struct libusb_transfer *transfer = libusb_alloc_transfer(0);
if (!transfer) {
fpi_ssm_mark_aborted(ssm, -ENOMEM);
return;
}
libusb_fill_bulk_transfer(transfer, dev->udev, EP_OUT, calibrate_reqs,
sizeof(calibrate_reqs), init_reqs_cb, ssm, BULK_TIMEOUT);
r = libusb_submit_transfer(transfer);
if (r < 0) {
libusb_free_transfer(transfer);
fpi_ssm_mark_aborted(ssm, -ENOMEM);
}
}
break;
case READ_CALIB_TABLE:
{
struct libusb_transfer *transfer = libusb_alloc_transfer(0);
unsigned char *data;
if (!transfer) {
fpi_ssm_mark_aborted(ssm, -ENOMEM);
break;
}
data = g_malloc(AES2550_EP_IN_BUF_SIZE);
libusb_fill_bulk_transfer(transfer, dev->udev, EP_IN, data, AES2550_EP_IN_BUF_SIZE,
calibrate_read_data_cb, ssm, BULK_TIMEOUT);
r = libusb_submit_transfer(transfer);
if (r < 0) {
g_free(data);
libusb_free_transfer(transfer);
fpi_ssm_mark_aborted(ssm, r);
}
}
break;
}
}
static void activate_sm_complete(struct fpi_ssm *ssm)
{
struct fp_img_dev *dev = ssm->priv;
fp_dbg("status %d", ssm->error);
fpi_imgdev_activate_complete(dev, ssm->error);
if (!ssm->error)
start_finger_detection(dev);
fpi_ssm_free(ssm);
}
static int dev_activate(struct fp_img_dev *dev, enum fp_imgdev_state state)
{
struct fpi_ssm *ssm = fpi_ssm_new(dev->dev, activate_run_state,
ACTIVATE_NUM_STATES);
ssm->priv = dev;
fpi_ssm_start(ssm, activate_sm_complete);
return 0;
}
static void dev_deactivate(struct fp_img_dev *dev)
{
struct aes2550_dev *aesdev = dev->priv;
aesdev->deactivating = TRUE;
}
static void complete_deactivation(struct fp_img_dev *dev)
{
struct aes2550_dev *aesdev = dev->priv;
fp_dbg("");
aesdev->deactivating = FALSE;
g_slist_free(aesdev->strips);
aesdev->strips = NULL;
aesdev->strips_len = 0;
fpi_imgdev_deactivate_complete(dev);
}
static int dev_init(struct fp_img_dev *dev, unsigned long driver_data)
{
/* TODO check that device has endpoints we're using */
int r;
r = libusb_claim_interface(dev->udev, 0);
if (r < 0) {
fp_err("could not claim interface 0");
return r;
}
dev->priv = g_malloc0(sizeof(struct aes2550_dev));
fpi_imgdev_open_complete(dev, 0);
return 0;
}
static void dev_deinit(struct fp_img_dev *dev)
{
g_free(dev->priv);
libusb_release_interface(dev->udev, 0);
fpi_imgdev_close_complete(dev);
}
static const struct usb_id id_table[] = {
{ .vendor = 0x08ff, .product = 0x2550 }, /* AES2550 */
{ .vendor = 0x08ff, .product = 0x2810 }, /* AES2810 */
{ 0, 0, 0, },
};
struct fp_img_driver aes2550_driver = {
.driver = {
.id = 4,
.name = FP_COMPONENT,
.full_name = "AuthenTec AES2550/AES2810",
.id_table = id_table,
.scan_type = FP_SCAN_TYPE_SWIPE,
},
.flags = 0,
.img_height = -1,
.img_width = 192,
.open = dev_init,
.close = dev_deinit,
.activate = dev_activate,
.deactivate = dev_deactivate,
};

114
libfprint/drivers/aes2550.h Normal file
View file

@ -0,0 +1,114 @@
/*
* AuthenTec AES2550/AES2810 driver for libfprint
* Copyright (C) 2012 Vasily Khoruzhick
*
* 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
*/
#ifndef __AES2550_H
#define __AES2550_H
/* Registers bits */
#define AES2550_REG80_MASTER_RESET (1 << 0)
#define AES2550_REG80_FORCE_FINGER_PRESENT (1 << 1)
#define AES2550_REG80_LPO_START (1 << 2)
#define AES2550_REG80_HGC_ENABLE (1 << 3)
#define AES2550_REG80_SENSOR_MODE_OFS (4)
#define AES2550_REG80_AUTO_RESTART_FD (1 << 6)
#define AES2550_REG80_EXT_REG_ENABLE (1 << 7)
#define AES2550_REG81_CONT_SCAN (1 << 0)
#define AES2550_REG81_READ_REG (1 << 1)
#define AES2550_REG81_NSHOT (1 << 2)
#define AES2550_REG81_RUN_FD (1 << 3)
#define AES2550_REG81_READ_ID (1 << 4)
#define AES2550_REG81_RUN_CAL (1 << 5)
#define AES2550_REG81_RUN_TIMER (1 << 6)
#define AES2550_REG81_RUN_BIST (1 << 7)
#define AES2550_REG83_FINGER_PRESENT (1 << 7)
#define AES2550_REG85_FLUSH_PER_FRAME (1 << 7)
#define AES2550_REG8F_EDATA_DISABLE (1 << 1)
#define AES2550_REG8F_AUTH_DISABLE (1 << 2)
#define AES2550_REG8F_EHISTO_DISABLE (1 << 3)
#define AES2550_REG8F_HISTO64 (1 << 4)
#define AES2550_REG8F_SINGLE_REG_ENABLE (1 << 6)
#define AES2550_REG95_COL_SCANNED_OFS (0)
#define AES2550_REG95_EPIX_AVG_OFS (4)
#define AES2550_REGA8_DIG_BIT_DATA_OFS (0)
#define AES2550_REGA8_DIG_BIT_EN (1 << 4)
#define AES2550_REGA8_FIXED_BIT_DATA (1 << 5)
#define AES2550_REGA8_INVERT_BIT_DATA (1 << 6)
#define AES2550_REGAD_LPFD_AVG_OFS (0)
#define AES2550_REGAD_DETECT_FGROFF (1 << 4)
#define AES2550_REGAD_ADVRANGE_2V (1 << 6)
#define AES2550_REGB1_ATE_CONT_IMAGE (1 << 1)
#define AES2550_REGB1_ANALOG_RESET (1 << 2)
#define AES2550_REGB1_ANALOG_PD (1 << 3)
#define AES2550_REGB1_TEST_EMBD_WORD (1 << 4)
#define AES2550_REGB1_ORIG_EMBD_WORD (1 << 5)
#define AES2550_REGB1_RESET_UHSM (1 << 6)
#define AES2550_REGB1_RESET_SENSOR (1 << 7)
#define AES2550_REGBD_LPO_IN_15_8_OFS (0)
#define AES2550_REGBE_LPO_IN_7_0_OFS (0)
#define AES2550_REGBF_RSR_LEVEL_DISABLED (0 << 0)
#define AES2550_REGBF_RSR_LEVEL_LEADING_RSR (1 << 0)
#define AES2550_REGBF_RSR_LEVEL_SIMPLE_RSR (2 << 0)
#define AES2550_REGBF_RSR_LEVEL_SUPER_RSR (3 << 0)
#define AES2550_REGBF_RSR_DIR_DOWN_MOTION (0 << 2)
#define AES2550_REGBF_RSR_DIR_UP_MOTION (1 << 2)
#define AES2550_REGBF_RSR_DIR_UPDOWN_MOTION (2 << 2)
#define AES2550_REGBF_NOISE_FLOOR_MODE (1 << 4)
#define AES2550_REGBF_QUADRATURE_MODE (1 << 5)
#define AES2550_REGCF_INTERFERENCE_CHK_EN (1 << 0)
#define AES2550_REGCF_INTERFERENCE_AVG_EN (1 << 1)
#define AES2550_REGCF_INTERFERENCE_AVG_OFFS (4)
#define AES2550_REGDC_BP_NUM_REF_SWEEP_OFS (0)
#define AES2550_REGDC_DEBUG_CTRL2_OFS (3)
#define AES2550_REGDD_DEBUG_CTRL1_OFS (0)
/* Commands */
enum aes2550_cmds {
AES2550_CMD_SET_IDLE_MODE = 0x00,
AES2550_CMD_RUN_FD = 0x01,
AES2550_CMD_GET_ENROLL_IMG = 0x02,
AES2550_CMD_CALIBRATE = 0x06,
AES2550_CMD_READ_CALIBRATION_DATA = 0x10,
AES2550_CMD_HEARTBEAT = 0x70,
};
/* Messages */
#define AES2550_STRIP_SIZE (0x31e + 3)
#define AES2550_HEARTBEAT_SIZE (4 + 3)
#define AES2550_EDATA_MAGIC 0xe0
#define AES2550_HEARTBEAT_MAGIC 0xdb
#define AES2550_EP_IN_BUF_SIZE 8192
#endif

3
libfprint/fp_internal.h
View file

@ -256,6 +256,9 @@ extern struct fp_img_driver aes1610_driver;
#ifdef ENABLE_AES2501
extern struct fp_img_driver aes2501_driver;
#endif
#ifdef ENABLE_AES2550
extern struct fp_img_driver aes2550_driver;
#endif
#ifdef ENABLE_AES4000
extern struct fp_img_driver aes4000_driver;
#endif