137 lines
3.9 KiB
C
137 lines
3.9 KiB
C
/*
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* FpDevice - A fingerprint reader device
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* Copyright (C) 2019 Benjamin Berg <bberg@redhat.com>
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* Copyright (C) 2019 Marco Trevisan <marco.trevisan@canonical.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the 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,
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* but 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 02110-1301 USA
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*/
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#pragma once
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#include "fpi-device.h"
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/* Chosen so that if we turn on after WARM -> COLD, it takes exactly one time
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* constant to go from COLD -> HOT.
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* TEMP_COLD_THRESH = 1 / (e + 1)
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*/
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#define TEMP_COLD_THRESH (0.26894142136999512075)
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#define TEMP_WARM_HOT_THRESH (1.0 - TEMP_COLD_THRESH)
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#define TEMP_HOT_WARM_THRESH (0.5)
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/* Delay updates by 100ms to avoid hitting the border exactly */
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#define TEMP_DELAY_SECONDS 0.1
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/* Hopefully 3min is long enough to not get in the way, while also not
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* properly overheating any devices.
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*/
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#define DEFAULT_TEMP_HOT_SECONDS (3 * 60)
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#define DEFAULT_TEMP_COLD_SECONDS (9 * 60)
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typedef struct
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{
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FpDeviceType type;
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GUsbDevice *usb_device;
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const gchar *virtual_env;
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struct
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{
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gchar *spidev_path;
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gchar *hidraw_path;
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} udev_data;
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gboolean is_removed;
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gboolean is_open;
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gboolean is_suspended;
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gchar *device_id;
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gchar *device_name;
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FpScanType scan_type;
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FpDeviceFeature features;
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guint64 driver_data;
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gint nr_enroll_stages;
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GSList *sources;
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/* We always make sure that only one task is run at a time. */
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FpiDeviceAction current_action;
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GTask *current_task;
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GError *current_cancellation_reason;
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GAsyncReadyCallback current_user_cb;
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GCancellable *current_cancellable;
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gulong current_cancellable_id;
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gulong current_task_cancellable_id;
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GSource *current_idle_cancel_source;
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GSource *current_task_idle_return_source;
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/* State for tasks */
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gboolean wait_for_finger;
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FpFingerStatusFlags finger_status;
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/* Driver critical sections */
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guint critical_section;
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GSource *critical_section_flush_source;
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gboolean cancel_queued;
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gboolean suspend_queued;
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gboolean resume_queued;
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/* Suspend/resume tasks */
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GTask *suspend_resume_task;
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GError *suspend_error;
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/* Device temperature model information and state */
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GSource *temp_timeout;
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FpTemperature temp_current;
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gint32 temp_hot_seconds;
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gint32 temp_cold_seconds;
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gint64 temp_last_update;
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gboolean temp_last_active;
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gdouble temp_current_ratio;
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} FpDevicePrivate;
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typedef struct
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{
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FpPrint *print;
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FpEnrollProgress enroll_progress_cb;
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gpointer enroll_progress_data;
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GDestroyNotify enroll_progress_destroy;
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} FpEnrollData;
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void enroll_data_free (FpEnrollData *enroll_data);
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typedef struct
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{
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FpPrint *enrolled_print; /* verify */
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GPtrArray *gallery; /* identify */
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gboolean result_reported;
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FpPrint *match;
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FpPrint *print;
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GError *error;
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FpMatchCb match_cb;
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gpointer match_data;
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GDestroyNotify match_destroy;
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} FpMatchData;
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void match_data_free (FpMatchData *match_data);
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void fpi_device_configure_wakeup (FpDevice *device,
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gboolean enabled);
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void fpi_device_update_temp (FpDevice *device,
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gboolean is_active);
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