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libfprint/libfprint/drivers/aes1610.c

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/*
* AuthenTec AES1610 driver for libfprint
* Copyright (C) 2007-2008 Daniel Drake <dsd@gentoo.org>
* Copyright (C) 2007 Cyrille Bagard
* Copyright (C) 2007 Vasily Khoruzhick
* Copyright (C) 2009 Guido Grazioli <guido.grazioli@gmail.com>
* Copyright (C) 2012 Vasily Khoruzhick <anarsoul@gmail.com>
*
* Based on code from libfprint 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 "aes1610"
#include "drivers_api.h"
#include "aeslib.h"
static void start_capture (FpImageDevice *dev);
static void complete_deactivation (FpImageDevice *dev);
static int adjust_gain (unsigned char *buffer,
int status);
#define FIRST_AES1610_REG 0x1B
#define LAST_AES1610_REG 0xFF
#define GAIN_STATUS_FIRST 1
#define GAIN_STATUS_NORMAL 2
/* FIXME these need checking */
#define EP_IN (1 | FPI_USB_ENDPOINT_IN)
#define EP_OUT (2 | FPI_USB_ENDPOINT_OUT)
#define BULK_TIMEOUT 4000
#define FINGER_DETECTION_LEN 19
#define STRIP_CAPTURE_LEN 665
/*
* The AES1610 is an imaging device using a swipe-type sensor. It samples
* the finger at preprogrammed intervals, sending a 128x8 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 128
#define FRAME_HEIGHT 8
#define FRAME_SIZE (FRAME_WIDTH * FRAME_HEIGHT)
#define IMAGE_WIDTH (FRAME_WIDTH + (FRAME_WIDTH / 2))
/* maximum number of frames to read during a scan */
/* FIXME reduce substantially */
#define MAX_FRAMES 350
/****** GENERAL FUNCTIONS ******/
struct _FpiDeviceAes1610
{
FpImageDevice parent;
guint8 read_regs_retry_count;
GSList *strips;
gsize strips_len;
gboolean deactivating;
guint8 blanks_count;
};
G_DECLARE_FINAL_TYPE (FpiDeviceAes1610, fpi_device_aes1610, FPI, DEVICE_AES1610,
FpImageDevice);
G_DEFINE_TYPE (FpiDeviceAes1610, fpi_device_aes1610, FP_TYPE_IMAGE_DEVICE);
static struct fpi_frame_asmbl_ctx assembling_ctx = {
.frame_width = FRAME_WIDTH,
.frame_height = FRAME_HEIGHT,
.image_width = IMAGE_WIDTH,
.get_pixel = aes_get_pixel,
};
typedef void (*aes1610_read_regs_cb)(FpImageDevice *dev,
int status,
unsigned char *regs,
void *user_data);
struct aes1610_read_regs
{
FpImageDevice *dev;
aes1610_read_regs_cb callback;
struct aes_regwrite *regwrite;
void *user_data;
};
/* FIXME: what to do here? */
static void
stub_capture_stop_cb (FpImageDevice *dev, GError *error,
void *user_data)
{
if (error)
{
fp_warn ("Error stopping capture: %s", error->message);
g_error_free (error);
}
}
static void
generic_write_regv_cb (FpImageDevice *dev, GError *error,
void *user_data)
{
FpiSsm *ssm = user_data;
if (!error)
fpi_ssm_next_state (ssm);
else
fpi_ssm_mark_failed (ssm, error);
}
/* read the specified number of bytes from the IN endpoint but throw them
* away, then increment the SSM */
static void
generic_read_ignore_data (FpiSsm *ssm, FpDevice *dev,
size_t bytes)
{
FpiUsbTransfer *transfer = fpi_usb_transfer_new (dev);
fpi_usb_transfer_fill_bulk (transfer, EP_IN, bytes);
transfer->ssm = ssm;
transfer->short_is_error = TRUE;
fpi_usb_transfer_submit (transfer, BULK_TIMEOUT, NULL,
fpi_ssm_usb_transfer_cb, NULL);
}
/****** FINGER PRESENCE DETECTION ******/
static const struct aes_regwrite finger_det_reqs[] = {
{ 0x80, 0x01 },
{ 0x80, 0x12 },
{ 0x85, 0x00 },
{ 0x8A, 0x00 },
{ 0x8B, 0x0E },
{ 0x8C, 0x90 },
{ 0x8D, 0x83 },
{ 0x8E, 0x07 },
{ 0x8F, 0x07 },
{ 0x96, 0x00 },
{ 0x97, 0x48 },
{ 0xA1, 0x00 },
{ 0xA2, 0x50 },
{ 0xA6, 0xE4 },
{ 0xAD, 0x08 },
{ 0xAE, 0x5B },
{ 0xAF, 0x54 },
{ 0xB1, 0x28 },
{ 0xB5, 0xAB },
{ 0xB6, 0x0E },
{ 0x1B, 0x2D },
{ 0x81, 0x04 }
};
static void start_finger_detection (FpImageDevice *dev);
static void
finger_det_data_cb (FpiUsbTransfer *transfer, FpDevice *device,
gpointer user_data, GError *error)
{
FpImageDevice *dev = FP_IMAGE_DEVICE (device);
unsigned char *data = transfer->buffer;
int i;
int sum = 0;
if (error)
{
fpi_image_device_session_error (dev, error);
return;
}
/* examine histogram to determine finger presence */
for (i = 3; i < 17; i++)
sum += (data[i] & 0xf) + (data[i] >> 4);
if (sum > 20)
{
/* reset default gain */
adjust_gain (data, GAIN_STATUS_FIRST);
/* finger present, start capturing */
fpi_image_device_report_finger_status (dev, TRUE);
start_capture (dev);
}
else
{
/* no finger, poll for a new histogram */
start_finger_detection (dev);
}
}
static void
finger_det_reqs_cb (FpImageDevice *dev, GError *error,
void *user_data)
{
FpiUsbTransfer *transfer;
if (error)
{
fpi_image_device_session_error (dev, error);
return;
}
transfer = fpi_usb_transfer_new (FP_DEVICE (dev));
fpi_usb_transfer_fill_bulk (transfer, EP_IN, FINGER_DETECTION_LEN);
transfer->short_is_error = TRUE;
fpi_usb_transfer_submit (transfer, BULK_TIMEOUT, NULL,
finger_det_data_cb, NULL);
}
static void
start_finger_detection (FpImageDevice *dev)
{
FpiDeviceAes1610 *self = FPI_DEVICE_AES1610 (dev);
if (self->deactivating)
{
complete_deactivation (dev);
return;
}
aes_write_regv (dev, finger_det_reqs, G_N_ELEMENTS (finger_det_reqs), finger_det_reqs_cb, NULL);
}
/****** CAPTURE ******/
static struct aes_regwrite capture_reqs[] = {
{ 0x80, 0x01 },
{ 0x80, 0x12 },
{ 0x84, 0x01 },
{ 0x85, 0x00 },
{ 0x89, 0x64 },
{ 0x8A, 0x00 },
{ 0x8B, 0x0E },
{ 0x8C, 0x90 },
{ 0xBE, 0x23 },
{ 0x29, 0x04 },
{ 0x2A, 0xFF },
{ 0x96, 0x00 },
{ 0x98, 0x03 },
{ 0x99, 0x00 },
{ 0x9C, 0xA5 },
{ 0x9D, 0x40 },
{ 0x9E, 0xC6 },
{ 0x9F, 0x8E },
{ 0xA2, 0x50 },
{ 0xA3, 0xF0 },
{ 0xAD, 0x08 },
{ 0xBD, 0x4F },
{ 0xAF, 0x54 },
{ 0xB1, 0x08 },
{ 0xB5, 0xAB },
{ 0x1B, 0x2D },
{ 0xB6, 0x4E },
{ 0xB8, 0x70 },
{ 0x2B, 0xB3 },
{ 0x2C, 0x5D },
{ 0x2D, 0x98 },
{ 0x2E, 0xB0 },
{ 0x2F, 0x20 },
{ 0xA2, 0xD0 },
{ 0x1D, 0x21 },
{ 0x1E, 0xBE },
{ 0x1C, 0x00 },
{ 0x1D, 0x30 },
{ 0x1E, 0x29 },
{ 0x1C, 0x01 },
{ 0x1D, 0x00 },
{ 0x1E, 0x9E },
{ 0x1C, 0x02 },
{ 0x1D, 0x30 },
{ 0x1E, 0xBB },
{ 0x1C, 0x03 },
{ 0x1D, 0x00 },
{ 0x1E, 0x9D },
{ 0x1C, 0x04 },
{ 0x1D, 0x22 },
{ 0x1E, 0xFF },
{ 0x1C, 0x05 },
{ 0x1D, 0x1B },
{ 0x1E, 0x4E },
{ 0x1C, 0x06 },
{ 0x1D, 0x16 },
{ 0x1E, 0x28 },
{ 0x1C, 0x07 },
{ 0x1D, 0x22 },
{ 0x1E, 0xFF },
{ 0x1C, 0x08 },
{ 0x1D, 0x15 },
{ 0x1E, 0xF1 },
{ 0x1C, 0x09 },
{ 0x1D, 0x30 },
{ 0x1E, 0xD5 },
{ 0x1C, 0x0A },
{ 0x1D, 0x00 },
{ 0x1E, 0x9E },
{ 0x1C, 0x0B },
{ 0x1D, 0x17 },
{ 0x1E, 0x9D },
{ 0x1C, 0x0C },
{ 0x1D, 0x28 },
{ 0x1E, 0xD7 },
{ 0x1C, 0x0D },
{ 0x1D, 0x17 },
{ 0x1E, 0xD7 },
{ 0x1C, 0x0E },
{ 0x1D, 0x0A },
{ 0x1E, 0xCB },
{ 0x1C, 0x0F },
{ 0x1D, 0x24 },
{ 0x1E, 0x14 },
{ 0x1C, 0x10 },
{ 0x1D, 0x17 },
{ 0x1E, 0x85 },
{ 0x1C, 0x11 },
{ 0x1D, 0x15 },
{ 0x1E, 0x71 },
{ 0x1C, 0x12 },
{ 0x1D, 0x2B },
{ 0x1E, 0x36 },
{ 0x1C, 0x13 },
{ 0x1D, 0x12 },
{ 0x1E, 0x06 },
{ 0x1C, 0x14 },
{ 0x1D, 0x30 },
{ 0x1E, 0x97 },
{ 0x1C, 0x15 },
{ 0x1D, 0x21 },
{ 0x1E, 0x32 },
{ 0x1C, 0x16 },
{ 0x1D, 0x06 },
{ 0x1E, 0xE6 },
{ 0x1C, 0x17 },
{ 0x1D, 0x16 },
{ 0x1E, 0x06 },
{ 0x1C, 0x18 },
{ 0x1D, 0x30 },
{ 0x1E, 0x01 },
{ 0x1C, 0x19 },
{ 0x1D, 0x21 },
{ 0x1E, 0x37 },
{ 0x1C, 0x1A },
{ 0x1D, 0x00 },
{ 0x1E, 0x08 },
{ 0x1C, 0x1B },
{ 0x1D, 0x80 },
{ 0x1E, 0xD5 },
{ 0xA2, 0x50 },
{ 0xA2, 0x50 },
{ 0x81, 0x01 }
};
static struct aes_regwrite strip_scan_reqs[] = {
{ 0xBE, 0x23 },
{ 0x29, 0x04 },
{ 0x2A, 0xFF },
{ 0xBD, 0x4F },
{ 0xFF, 0x00 }
};
static const struct aes_regwrite capture_stop[] = {
{ 0x81, 0x00 }
};
/*
* The different possible values for 0xBE register */
static unsigned char list_BE_values[10] = {
0x23, 0x43, 0x63, 0x64, 0x65, 0x67, 0x6A, 0x6B
};
/*
* The different possible values for 0xBD register */
static unsigned char list_BD_values[10] = {
0x28, 0x2b, 0x30, 0x3b, 0x45, 0x49, 0x4B
};
/*
* Adjust the gain according to the histogram data
* 0xbd, 0xbe, 0x29 and 0x2A registers are affected
* Returns 0 if no problem occurred
* TODO: This is a basic support for gain. It needs testing/tweaking. */
static int
adjust_gain (unsigned char *buffer, int status)
{
// The position in the array of possible values for 0xBE and 0xBD registers
static int pos_list_BE = 0;
static int pos_list_BD = 0;
// This is the first adjustment (we begin acquisition)
// We adjust strip_scan_reqs for future strips and capture_reqs that is sent just after this step
if (status == GAIN_STATUS_FIRST)
{
if (buffer[1] > 0x78) // maximum gain needed
{
strip_scan_reqs[0].value = 0x6B;
strip_scan_reqs[1].value = 0x06;
strip_scan_reqs[2].value = 0x35;
strip_scan_reqs[3].value = 0x4B;
}
else if (buffer[1] > 0x55)
{
strip_scan_reqs[0].value = 0x63;
strip_scan_reqs[1].value = 0x15;
strip_scan_reqs[2].value = 0x35;
strip_scan_reqs[3].value = 0x3b;
}
else if (buffer[1] > 0x40 || buffer[16] > 0x19)
{
strip_scan_reqs[0].value = 0x43;
strip_scan_reqs[1].value = 0x13;
strip_scan_reqs[2].value = 0x35;
strip_scan_reqs[3].value = 0x30;
}
else // minimum gain needed
{
strip_scan_reqs[0].value = 0x23;
strip_scan_reqs[1].value = 0x07;
strip_scan_reqs[2].value = 0x35;
strip_scan_reqs[3].value = 0x28;
}
// Now copy this values in capture_reqs
capture_reqs[8].value = strip_scan_reqs[0].value;
capture_reqs[9].value = strip_scan_reqs[1].value;
capture_reqs[10].value = strip_scan_reqs[2].value;
capture_reqs[21].value = strip_scan_reqs[3].value;
fp_dbg ("first gain: %x %x %x %x %x %x %x %x", strip_scan_reqs[0].reg, strip_scan_reqs[0].value, strip_scan_reqs[1].reg, strip_scan_reqs[1].value, strip_scan_reqs[2].reg, strip_scan_reqs[2].value, strip_scan_reqs[3].reg, strip_scan_reqs[3].value);
}
// Every 2/3 strips
// We try to soften big changes of the gain (at least for 0xBE and 0xBD
// FIXME: This softenning will need testing and tweaking too
else if (status == GAIN_STATUS_NORMAL)
{
if (buffer[514] > 0x78) // maximum gain needed
{
if (pos_list_BE < 7)
pos_list_BE++;
if (pos_list_BD < 6)
pos_list_BD++;
strip_scan_reqs[1].value = 0x04;
strip_scan_reqs[2].value = 0x35;
}
else if (buffer[514] > 0x55)
{
if (pos_list_BE < 2)
pos_list_BE++;
else if (pos_list_BE > 2)
pos_list_BE--;
if (pos_list_BD < 2)
pos_list_BD++;
else if (pos_list_BD > 2)
pos_list_BD--;
strip_scan_reqs[1].value = 0x15;
strip_scan_reqs[2].value = 0x35;
}
else if (buffer[514] > 0x40 || buffer[529] > 0x19)
{
if (pos_list_BE < 1)
pos_list_BE++;
else if (pos_list_BE > 1)
pos_list_BE--;
if (pos_list_BD < 1)
pos_list_BD++;
else if (pos_list_BD > 1)
pos_list_BD--;
strip_scan_reqs[1].value = 0x13;
strip_scan_reqs[2].value = 0x35;
}
else // minimum gain needed
{
if (pos_list_BE > 0)
pos_list_BE--;
if (pos_list_BD > 0)
pos_list_BD--;
strip_scan_reqs[1].value = 0x07;
strip_scan_reqs[2].value = 0x35;
}
strip_scan_reqs[0].value = list_BE_values[pos_list_BE];
strip_scan_reqs[3].value = list_BD_values[pos_list_BD];
fp_dbg ("gain: %x %x %x %x %x %x %x %x", strip_scan_reqs[0].reg, strip_scan_reqs[0].value, strip_scan_reqs[1].reg, strip_scan_reqs[1].value, strip_scan_reqs[2].reg, strip_scan_reqs[2].value, strip_scan_reqs[3].reg, strip_scan_reqs[3].value);
}
// Unknown status
else
{
fp_err ("Unexpected gain status.");
return 1;
}
return 0;
}
/*
* Restore the default gain values */
static void
restore_gain (void)
{
strip_scan_reqs[0].value = list_BE_values[0];
strip_scan_reqs[1].value = 0x04;
strip_scan_reqs[2].value = 0xFF;
strip_scan_reqs[3].value = list_BD_values[0];
capture_reqs[8].value = list_BE_values[0];
capture_reqs[9].value = 0x04;
capture_reqs[10].value = 0xFF;
capture_reqs[21].value = list_BD_values[0];
}
/* capture SM movement:
* request and read strip,
* jump back to request UNLESS there's no finger, in which case exit SM,
* report lack of finger presence, and move to finger detection */
enum capture_states {
CAPTURE_WRITE_REQS,
CAPTURE_READ_DATA,
CAPTURE_REQUEST_STRIP,
CAPTURE_READ_STRIP,
CAPTURE_NUM_STATES,
};
static void
capture_read_strip_cb (FpiUsbTransfer *transfer, FpDevice *device,
gpointer user_data, GError *error)
{
unsigned char *stripdata;
FpImageDevice *dev = FP_IMAGE_DEVICE (device);
FpiDeviceAes1610 *self = FPI_DEVICE_AES1610 (dev);
unsigned char *data = transfer->buffer;
gint sum, i;
if (error)
{
fpi_ssm_mark_failed (transfer->ssm, error);
return;
}
/* FIXME: would preallocating strip buffers be a decent optimization? */
sum = 0;
for (i = 516; i < 530; i++)
/* histogram[i] = number of pixels of value i
Only the pixel values from 10 to 15 are used to detect finger. */
sum += data[i];
fp_dbg ("sum=%d", sum);
if (sum > 0)
{
/* FIXME: would preallocating strip buffers be a decent optimization? */
struct fpi_frame *stripe = g_malloc (FRAME_WIDTH * (FRAME_HEIGHT / 2) + sizeof (struct fpi_frame));
stripe->delta_x = 0;
stripe->delta_y = 0;
stripdata = stripe->data;
memcpy (stripdata, data + 1, FRAME_WIDTH * (FRAME_HEIGHT / 2));
self->strips = g_slist_prepend (self->strips, stripe);
self->strips_len++;
self->blanks_count = 0;
}
else
{
/* FIXME: 0 might be too low as a threshold */
/* FIXME: sometimes we get 0 in the middle of a scan, should we wait for
* a few consecutive zeroes? */
/* sum cannot be negative, so is 0 */
self->blanks_count++;
fp_dbg ("got blank frame");
}
/* use histogram data above for gain calibration (0xbd, 0xbe, 0x29 and 0x2A ) */
adjust_gain (data, GAIN_STATUS_NORMAL);
/* stop capturing if MAX_FRAMES is reached */
if (self->blanks_count > 10 || g_slist_length (self->strips) >= MAX_FRAMES)
{
FpImage *img;
fp_dbg ("sending stop capture.... blanks=%d frames=%d",
self->blanks_count, g_slist_length (self->strips));
/* send stop capture bits */
aes_write_regv (dev, capture_stop, G_N_ELEMENTS (capture_stop), stub_capture_stop_cb, NULL);
self->strips = g_slist_reverse (self->strips);
fpi_do_movement_estimation (&assembling_ctx, self->strips);
img = fpi_assemble_frames (&assembling_ctx, self->strips);
img->flags |= FPI_IMAGE_PARTIAL;
g_slist_free_full (self->strips, g_free);
self->strips = NULL;
self->strips_len = 0;
self->blanks_count = 0;
fpi_image_device_image_captured (dev, img);
fpi_image_device_report_finger_status (dev, FALSE);
/* marking machine complete will re-trigger finger detection loop */
fpi_ssm_mark_completed (transfer->ssm);
/* Acquisition finished: restore default gain values */
restore_gain ();
}
else
{
/* obtain next strip */
fpi_ssm_jump_to_state (transfer->ssm, CAPTURE_REQUEST_STRIP);
}
}
static void
capture_run_state (FpiSsm *ssm, FpDevice *_dev)
{
FpImageDevice *dev = FP_IMAGE_DEVICE (_dev);
FpiDeviceAes1610 *self = FPI_DEVICE_AES1610 (_dev);
switch (fpi_ssm_get_cur_state (ssm))
{
case CAPTURE_WRITE_REQS:
fp_dbg ("write reqs");
aes_write_regv (dev, capture_reqs, G_N_ELEMENTS (capture_reqs),
generic_write_regv_cb, ssm);
break;
case CAPTURE_READ_DATA:
fp_dbg ("read data");
generic_read_ignore_data (ssm, _dev, STRIP_CAPTURE_LEN);
break;
case CAPTURE_REQUEST_STRIP:
fp_dbg ("request strip");
if (self->deactivating)
fpi_ssm_mark_completed (ssm);
else
aes_write_regv (dev, strip_scan_reqs, G_N_ELEMENTS (strip_scan_reqs),
generic_write_regv_cb, ssm);
break;
case CAPTURE_READ_STRIP:;
FpiUsbTransfer *transfer = fpi_usb_transfer_new (_dev);
fpi_usb_transfer_fill_bulk (transfer, EP_IN, STRIP_CAPTURE_LEN);
transfer->ssm = ssm;
transfer->short_is_error = TRUE;
fpi_usb_transfer_submit (transfer, BULK_TIMEOUT, NULL,
capture_read_strip_cb, NULL);
break;
}
;
}
static void
capture_sm_complete (FpiSsm *ssm, FpDevice *_dev, GError *error)
{
FpImageDevice *dev = FP_IMAGE_DEVICE (_dev);
FpiDeviceAes1610 *self = FPI_DEVICE_AES1610 (_dev);
G_DEBUG_HERE ();
if (self->deactivating)
{
complete_deactivation (dev);
if (error)
g_error_free (error);
}
else if (error)
{
fpi_image_device_session_error (dev, error);
}
else
{
start_finger_detection (dev);
}
}
static void
start_capture (FpImageDevice *dev)
{
FpiDeviceAes1610 *self = FPI_DEVICE_AES1610 (dev);
FpiSsm *ssm;
if (self->deactivating)
{
complete_deactivation (dev);
return;
}
ssm = fpi_ssm_new (FP_DEVICE (dev), capture_run_state,
CAPTURE_NUM_STATES);
G_DEBUG_HERE ();
fpi_ssm_start (ssm, capture_sm_complete);
}
/****** INITIALIZATION/DEINITIALIZATION ******/
static const struct aes_regwrite init[] = {
{ 0x82, 0x00 }
};
/*
static const struct aes_regwrite stop_reader[] = {
{ 0xFF, 0x00 }
};
*/
enum activate_states {
WRITE_INIT,
ACTIVATE_NUM_STATES,
};
static void
activate_run_state (FpiSsm *ssm, FpDevice *_dev)
{
FpImageDevice *dev = FP_IMAGE_DEVICE (_dev);
/* activation on aes1610 seems much more straightforward compared to aes2501 */
/* verify there's anything missing here */
switch (fpi_ssm_get_cur_state (ssm))
{
case WRITE_INIT:
fp_dbg ("write init");
aes_write_regv (dev, init, G_N_ELEMENTS (init), generic_write_regv_cb, ssm);
break;
}
}
/* jump to finger detection */
static void
activate_sm_complete (FpiSsm *ssm, FpDevice *_dev, GError *error)
{
FpImageDevice *dev = FP_IMAGE_DEVICE (_dev);
fpi_image_device_activate_complete (dev, error);
if (!error)
start_finger_detection (dev);
}
static void
dev_activate (FpImageDevice *dev)
{
FpiDeviceAes1610 *self = FPI_DEVICE_AES1610 (dev);
FpiSsm *ssm = fpi_ssm_new (FP_DEVICE (dev), activate_run_state,
ACTIVATE_NUM_STATES);
self->read_regs_retry_count = 0;
fpi_ssm_start (ssm, activate_sm_complete);
}
static void
dev_deactivate (FpImageDevice *dev)
{
FpiDeviceAes1610 *self = FPI_DEVICE_AES1610 (dev);
/* FIXME: audit cancellation points, probably need more, specifically
* in error handling paths? */
self->deactivating = TRUE;
}
static void
complete_deactivation (FpImageDevice *dev)
{
FpiDeviceAes1610 *self = FPI_DEVICE_AES1610 (dev);
G_DEBUG_HERE ();
/* FIXME: if we're in the middle of a scan, we should cancel the scan.
* maybe we can do this with a master reset, unconditionally? */
self->deactivating = FALSE;
g_slist_free (self->strips);
self->strips = NULL;
self->strips_len = 0;
self->blanks_count = 0;
fpi_image_device_deactivate_complete (dev, NULL);
}
static void
dev_init (FpImageDevice *dev)
{
GError *error = NULL;
/* FIXME check endpoints */
if (!g_usb_device_claim_interface (fpi_device_get_usb_device (FP_DEVICE (dev)), 0, 0, &error))
{
fpi_image_device_open_complete (dev, error);
return;
}
fpi_image_device_open_complete (dev, NULL);
}
static void
dev_deinit (FpImageDevice *dev)
{
GError *error = NULL;
g_usb_device_release_interface (fpi_device_get_usb_device (FP_DEVICE (dev)),
0, 0, &error);
fpi_image_device_close_complete (dev, error);
}
static const FpIdEntry id_table[] = {
{ .vid = 0x08ff, .pid = 0x1600, },/* AES1600 */
{ .vid = 0, .pid = 0, .driver_data = 0 },
};
static void
fpi_device_aes1610_init (FpiDeviceAes1610 *self)
{
}
static void
fpi_device_aes1610_class_init (FpiDeviceAes1610Class *klass)
{
FpDeviceClass *dev_class = FP_DEVICE_CLASS (klass);
FpImageDeviceClass *img_class = FP_IMAGE_DEVICE_CLASS (klass);
dev_class->id = "aes1610";
dev_class->full_name = "AuthenTec AES1610";
dev_class->type = FP_DEVICE_TYPE_USB;
dev_class->id_table = id_table;
dev_class->scan_type = FP_SCAN_TYPE_SWIPE;
img_class->img_open = dev_init;
img_class->img_close = dev_deinit;
img_class->activate = dev_activate;
img_class->deactivate = dev_deactivate;
img_class->bz3_threshold = 20;
img_class->img_width = IMAGE_WIDTH;
img_class->img_height = -1;
}
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