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tklock.c
7060 lines (5802 loc) · 212 KB
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tklock.c
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/**
* @file tklock.c
* This file implements the touchscreen/keypad lock component
* of the Mode Control Entity
* <p>
* Copyright © 2004-2011 Nokia Corporation and/or its subsidiary(-ies).
* <p>
* @author David Weinehall <david.weinehall@nokia.com>
* @author Simo Piiroinen <simo.piiroinen@jollamobile.com>
*
* mce is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License
* version 2.1 as published by the Free Software Foundation.
*
* mce 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 mce. If not, see <http://www.gnu.org/licenses/>.
*/
#include "tklock.h"
#include "mce-log.h"
#include "mce-lib.h"
#include "mce-io.h"
#include "mce-setting.h"
#include "mce-dbus.h"
#include "mce-hbtimer.h"
#include "evdev.h"
#ifdef ENABLE_WAKELOCKS
# include "libwakelock.h"
#endif
#include "modules/doubletap.h"
#include "modules/display.h"
#include "systemui/dbus-names.h"
#include "systemui/tklock-dbus-names.h"
#include <linux/input.h>
#include <unistd.h>
#include <string.h>
#include <fcntl.h>
#include <errno.h>
#include <mce/dbus-names.h>
#include <mce/mode-names.h>
#include <glib/gstdio.h>
typedef enum
{
/** No autorelock triggers */
AUTORELOCK_NO_TRIGGERS,
/** Autorelock on keyboard slide closed */
AUTORELOCK_KBD_SLIDE,
/** Autorelock on lens cover */
AUTORELOCK_LENS_COVER,
} autorelock_t;
/** Helper for evaluation number of items in an array */
#define numof(a) (sizeof(a)/sizeof*(a))
/* ========================================================================= *
* CONSTANTS
* ========================================================================= */
/** Max valid time_t value in milliseconds */
#define MAX_TICK (INT_MAX * (int64_t)1000)
/** Min valid time_t value in milliseconds */
#define MIN_TICK 0
/** Maximum number of concurrent notification ui exceptions */
#define TKLOCK_NOTIF_SLOTS 32
/** How long to wait for lid close after low lux [ms] */
#define TKLOCK_LIDFILTER_SET_WAIT_FOR_CLOSE_DELAY 1500
/** How long to wait for low lux after lid close [ms] */
#define TKLOCK_LIDFILTER_SET_WAIT_FOR_DARK_DELAY 1200
/** How long to wait for high lux after lid open [ms] */
#define TKLOCK_LIDFILTER_SET_WAIT_FOR_LIGHT_DELAY 1200
/* ========================================================================= *
* DATATYPES
* ========================================================================= */
typedef struct
{
/** BOOTTIME tick when notification autostops */
int64_t ns_until;
/** Amount of ms autostop extends from user input */
int64_t ns_renew;
/** Private D-Bus name of the slot owner */
gchar *ns_owner;
/** Assumed unique identification string */
gchar *ns_name;
} tklock_notif_slot_t;
typedef struct
{
/** Array of notification slots */
tklock_notif_slot_t tn_slot[TKLOCK_NOTIF_SLOTS];
/** BOOTTIME linger tick from deactivated slots */
int64_t tn_linger;
/** Timer id for autostopping notification slots */
guint tn_autostop_id;
/** Slot owner D-Bus name monitoring list */
GSList *tn_monitor_list;
} tklock_notif_state_t;
/** Proximity sensor history */
typedef struct
{
/** Monotonic timestamp, ms resolution */
int64_t tick;
/** Proximity sensor state */
cover_state_t state;
} ps_history_t;
/** Ambient light lux value mapped into enumerated states
*
* In case the lid sensor can't be trusted for some reason, data from
* ambient light sensor heuristics can be used for avoiding incorrect
* blank/unblank actions.
*
* For this purpose the raw data from ambient light sensor is tracked
* and mapped in to three states:
*
* - TKLOCK_LIDLIGHT_NA: The data from als is not applicable for filtering.
* - TKLOCK_LIDLIGHT_LO: The als indicates darkness.
* - TKLOCK_LIDLIGHT_HI: The als indicates some amount of light.
*/
typedef enum
{
/* Light level is not applicable for state evaluation */
TKLOCK_LIDLIGHT_NA,
/* Light level equals complete darkness */
TKLOCK_LIDLIGHT_LO,
/* Light level equals at least some light */
TKLOCK_LIDLIGHT_HI,
} tklock_lidlight_t;
/* ========================================================================= *
* PROTOTYPES
* ========================================================================= */
// datapipe values and triggers
static void tklock_datapipe_system_state_cb(gconstpointer data);
static void tklock_datapipe_devicelock_state_cb(gconstpointer data);
static void tklock_datapipe_resume_detected_event_cb(gconstpointer data);
static void tklock_datapipe_lipstick_service_state_cb(gconstpointer data);
static void tklock_datapipe_osupdate_running_cb(gconstpointer data);
static void tklock_datapipe_shutting_down_cb(gconstpointer data);
static void tklock_datapipe_display_state_curr_cb(gconstpointer data);
static void tklock_datapipe_proximity_update(void);
static gboolean tklock_datapipe_proximity_uncover_cb(gpointer data);
static void tklock_datapipe_proximity_uncover_cancel(void);
static void tklock_datapipe_proximity_uncover_schedule(void);
static void tklock_datapipe_proximity_sensor_actual_cb(gconstpointer data);
static void tklock_datapipe_call_state_cb(gconstpointer data);
static void tklock_datapipe_alarm_ui_state_cb(gconstpointer data);
static void tklock_datapipe_charger_state_cb(gconstpointer data);
static void tklock_datapipe_battery_status_cb(gconstpointer data);
static void tklock_datapipe_usb_cable_state_cb(gconstpointer data);
static void tklock_datapipe_jack_sense_state_cb(gconstpointer data);
static void tklock_datapipe_camera_button_state_cb(gconstpointer const data);
static void tklock_datapipe_keypress_event_cb(gconstpointer const data);
static void tklock_datapipe_uiexception_type_cb(gconstpointer data);
static void tklock_datapipe_audio_route_cb(gconstpointer data);
static void tklock_datapipe_tklock_request_cb(gconstpointer data);
static void tklock_datapipe_interaction_expected_cb(gconstpointer data);
static void tklock_datapipe_submode_cb(gconstpointer data);
static void tklock_datapipe_lockkey_state_cb(gconstpointer const data);
static void tklock_datapipe_heartbeat_event_cb(gconstpointer data);
static void tklock_datapipe_keyboard_slide_input_state_cb(gconstpointer const data);
static void tklock_datapipe_keyboard_slide_output_state_cb(gconstpointer const data);
static void tklock_datapipe_keyboard_available_state_cb(gconstpointer const data);
static void tklock_datapipe_light_sensor_poll_request_cb(gconstpointer const data);
static void tklock_datapipe_light_sensor_actual_cb(gconstpointer data);
static void tklock_datapipe_lid_sensor_is_working_cb(gconstpointer data);
static void tklock_datapipe_lid_sensor_actual_cb(gconstpointer data);
static void tklock_datapipe_lid_sensor_filtered_cb(gconstpointer data);
static void tklock_datapipe_lens_cover_state_cb(gconstpointer data);
static void tklock_datapipe_user_activity_event_cb(gconstpointer data);
static void tklock_datapipe_init_done_cb(gconstpointer data);
static bool tklock_datapipe_in_tklock_submode(void);
static void tklock_datapipe_set_tklock_submode(bool lock);
static void tklock_datapipe_set_devicelock_state(devicelock_state_t state);
static void tklock_datapipe_init(void);
static void tklock_datapipe_quit(void);
// LID_SENSOR
static bool tklock_lidsensor_is_enabled (void);
static void tklock_lidsensor_init (void);
// LID_LIGHT
static const char *tklock_lidlight_repr (tklock_lidlight_t state);
static tklock_lidlight_t tklock_lidlight_from_lux (int lux);
// LID_FILTER
static bool tklock_lidfilter_is_enabled (void);
static void tklock_lidfilter_set_allow_close (bool allow);
static tklock_lidlight_t tklock_lidfilter_map_als_state (void);
static void tklock_lidfilter_set_als_state (tklock_lidlight_t state);
static gboolean tklock_lidfilter_wait_for_close_cb (gpointer aptr);
static bool tklock_lidfilter_get_wait_for_close (void);
static void tklock_lidfilter_set_wait_for_close (bool state);
static gboolean tklock_lidfilter_wait_for_dark_cb (gpointer aptr);
static bool tklock_lidfilter_get_wait_for_dark (void);
static void tklock_lidfilter_set_wait_for_dark (bool state);
static gboolean tklock_lidfilter_wait_for_light_cb (gpointer aptr);
static bool tklock_lidfilter_get_wait_for_light (void);
static void tklock_lidfilter_set_wait_for_light (bool state);
static void tklock_lidfilter_rethink_als_poll (void);
static void tklock_lidfilter_rethink_allow_close (void);
static void tklock_lidfilter_rethink_als_state (void);
static void tklock_lidfilter_rethink_lid_state (void);
// LID_POLICY
static void tklock_lidpolicy_rethink (void);
// keyboard slide state machine
static void tklock_keyboard_slide_rethink(void);
// autolock state machine
static gboolean tklock_autolock_cb(gpointer aptr);
static void tklock_autolock_evaluate(void);
static void tklock_autolock_enable(void);
static void tklock_autolock_disable(void);
static void tklock_autolock_rethink(void);
static void tklock_autolock_init(void);
static void tklock_autolock_quit(void);
// proximity locking state machine
static gboolean tklock_proxlock_cb(gpointer aptr);
static void tklock_proxlock_resume(void);
static void tklock_proxlock_evaluate(void);
static void tklock_proxlock_enable(void);
static void tklock_proxlock_disable(void);
static void tklock_proxlock_rethink(void);
// autolock based on device lock changes
static void tklock_autolock_on_devlock_block(int duration_ms);
static void tklock_autolock_on_devlock_prime(void);
static void tklock_autolock_on_devlock_trigger(void);
// ui exception handling state machine
static uiexception_type_t topmost_active(uiexception_type_t mask);
static void tklock_uiexception_sync_to_datapipe(void);
static gboolean tklock_uiexception_linger_cb(gpointer aptr);
static void tklock_uiexception_begin(uiexception_type_t type, int64_t linger);
static void tklock_uiexception_end(uiexception_type_t type, int64_t linger);
static void tklock_uiexception_cancel(void);
static void tklock_uiexception_finish(void);
static bool tklock_uiexception_deny_state_restore(bool force, const char *cause);
static void tklock_uiexception_rethink(void);
// low power mode ui state machine
static void tklock_lpmui_set_state(bool enable);
static void tklock_lpmui_reset_history(void);
static void tklock_lpmui_update_history(cover_state_t state);
static bool tklock_lpmui_probe_from_pocket(void);
static bool tklock_lpmui_probe_on_table(void);
static bool tklock_lpmui_probe(void);
static void tklock_lpmui_rethink(void);
static void tklock_lpmui_pre_transition_actions(void);
// legacy hw event input enable/disable state machine
static void tklock_evctrl_set_state(output_state_t *output, bool enable);
static void tklock_evctrl_set_kp_state(bool enable);
static void tklock_evctrl_set_ts_state(bool enable);
static void tklock_evctrl_set_dt_state(bool enable);
static void tklock_evctrl_rethink(void);
// legacy hw double tap calibration
static void tklock_dtcalib_now(void);
static void tklock_dtcalib_from_heartbeat(void);
static gboolean tklock_dtcalib_cb(gpointer data);
static void tklock_dtcalib_start(void);
static void tklock_dtcalib_stop(void);
// DYNAMIC_SETTINGS
static void tklock_setting_sanitize_lid_open_actions(void);
static void tklock_setting_sanitize_lid_close_actions(void);
static void tklock_setting_cb(GConfClient *const gcc, const guint id, GConfEntry *const entry, gpointer const data);
static void tklock_setting_init(void);
static void tklock_setting_quit(void);
// sysfs probing
static void tklock_sysfs_probe(void);
// dbus ipc with systemui
static void tklock_ui_send_tklock_signal(void);
static void tklock_ui_notify_rethink_wakelock(void);
static bool tklock_ui_notify_must_be_delayed(void);
static gboolean tklock_ui_notify_end_cb(gpointer data);
static gboolean tklock_ui_notify_beg_cb(gpointer data);
static void tklock_ui_notify_schdule(void);
static void tklock_ui_notify_cancel(void);
static void tklock_ui_eat_event(void);
static void tklock_ui_open(void);
static void tklock_ui_close(void);
static bool tklock_ui_is_enabled(void);
static void tklock_ui_set_enabled(bool enable);
static void tklock_ui_get_devicelock_cb(DBusPendingCall *pc, void *aptr);
static void tklock_ui_get_devicelock(void);
static void tklock_ui_send_lpm_signal(void);
static void tklock_ui_enable_lpm(void);
static void tklock_ui_disable_lpm(void);
static void tklock_ui_show_device_unlock(void);;
// dbus ipc
static void tklock_dbus_send_display_blanking_policy(DBusMessage *const req);
static gboolean tklock_dbus_display_blanking_policy_get_cb(DBusMessage *const msg);
static void tklock_dbus_send_keyboard_slide_state(DBusMessage *const req);
static gboolean tklock_dbus_keyboard_slide_state_get_req_cb(DBusMessage *const msg);
static void tklock_dbus_send_keyboard_available_state(DBusMessage *const req);
static gboolean tklock_dbus_keyboard_available_state_get_req_cb(DBusMessage *const msg);
static gboolean tklock_dbus_send_tklock_mode(DBusMessage *const method_call);
static gboolean tklock_dbus_mode_get_req_cb(DBusMessage *const msg);
static gboolean tklock_dbus_mode_change_req_cb(DBusMessage *const msg);
static gboolean tklock_dbus_interaction_expected_cb(DBusMessage *const msg);
static gboolean tklock_dbus_systemui_callback_cb(DBusMessage *const msg);
static gboolean tklock_dbus_devicelock_changed_cb(DBusMessage *const msg);
static gboolean tklock_dbus_notification_beg_cb(DBusMessage *const msg);
static gboolean tklock_dbus_notification_end_cb(DBusMessage *const msg);
static void mce_tklock_init_dbus(void);
static void mce_tklock_quit_dbus(void);
// NOTIFICATION_SLOTS
static void tklock_notif_slot_init(tklock_notif_slot_t *self);
static void tklock_notif_slot_free(tklock_notif_slot_t *self);
static void tklock_notif_slot_set(tklock_notif_slot_t *self, const char *owner, const char *name, int64_t until, int64_t renew);
static bool tklock_notif_slot_is_free(const tklock_notif_slot_t *self);
static bool tklock_notif_slot_has_name(const tklock_notif_slot_t *self, const char *name);
static bool tklock_notif_slot_validate(tklock_notif_slot_t *self, int64_t now);
static bool tklock_notif_slot_renew(tklock_notif_slot_t *self, int64_t now);
static bool tklock_notif_slot_has_owner(const tklock_notif_slot_t *self, const char *owner);
static gchar *tklock_notif_slot_steal_owner(tklock_notif_slot_t *self);
// NOTIFICATION_API
static void tklock_notif_init(void);
static void tklock_notif_quit(void);
static gboolean tklock_notif_autostop_cb(gpointer aptr);
static void tklock_notif_cancel_autostop(void);
static void tklock_notif_schedule_autostop(gint delay);
static void tklock_notif_update_state(void);
static void tklock_notif_extend_by_renew(void);
static void tklock_notif_vacate_slot(const char *owner, const char *name, int64_t linger);
static void tklock_notif_reserve_slot(const char *owner, const char *name, int64_t length, int64_t renew);
static void tklock_notif_vacate_slots_from(const char *owner);
static size_t tklock_notif_count_slots_from(const char *owner);
static gboolean tklock_notif_owner_dropped_cb(DBusMessage *const msg);
static void tklock_notif_add_owner_monitor(const char *owner);
static void tklock_notif_remove_owner_monitor(const char *owner);
static void mce_tklock_begin_notification(const char *owner, const char *name, int64_t length, int64_t renew);
static void mce_tklock_end_notification(const char *owner, const char *name, int64_t linger);
// "module" load/unload
extern gboolean mce_tklock_init(void);
extern void mce_tklock_exit(void);
extern void mce_tklock_unblank(display_state_t to_state);
/* ========================================================================= *
* DYNAMIC_SETTINGS
* ========================================================================= */
/** Flag: Devicelock is handled in lockscreen */
static gboolean tklock_devicelock_in_lockscreen = MCE_DEFAULT_TK_DEVICELOCK_IN_LOCKSCREEN;
static guint tklock_devicelock_in_lockscreen_setting_id = 0;
/** Flag: Convert denied tklock removal attempt to: show device unlock view */
static bool tklock_devicelock_want_to_unlock = false;
/** Flag: Automatically lock (after ON->DIM->OFF cycle) */
static gboolean tk_autolock_enabled = MCE_DEFAULT_TK_AUTOLOCK_ENABLED;
static guint tk_autolock_enabled_setting_id = 0;
/** Flag: Grabbing input devices is allowed */
static gboolean tk_input_policy_enabled = MCE_DEFAULT_TK_INPUT_POLICY_ENABLED;
static guint tk_input_policy_enabled_setting_id = 0;
/** Delay for automatick locking (after ON->DIM->OFF cycle) */
static gint tklock_autolock_delay = MCE_DEFAULT_TK_AUTOLOCK_DELAY;
static guint tklock_autolock_delay_setting_id = 0;
/** Flag: Proximity sensor can block touch input */
static gboolean proximity_blocks_touch = MCE_DEFAULT_TK_PROXIMITY_BLOCKS_TOUCH;
static guint proximity_blocks_touch_setting_id = 0;
/** Volume key input policy */
static gint volkey_policy = MCE_DEFAULT_TK_VOLKEY_POLICY;
static guint volkey_policy_setting_id = 0;
/** Touchscreen gesture (doubletap etc) enable mode */
static gint touchscreen_gesture_enable_mode = MCE_DEFAULT_DOUBLETAP_MODE;
static guint touchscreen_gesture_enable_mode_setting_id = 0;
/** Lid sensor open actions */
static gint tklock_lid_open_actions = MCE_DEFAULT_TK_LID_OPEN_ACTIONS;
static guint tklock_lid_open_actions_setting_id = 0;
/** Lid sensor close actions */
static gint tklock_lid_close_actions = MCE_DEFAULT_TK_LID_CLOSE_ACTIONS;
static guint tklock_lid_close_actions_setting_id = 0;
/** Flag: Is the lid sensor used for display blanking */
static gboolean lid_sensor_enabled = MCE_DEFAULT_TK_LID_SENSOR_ENABLED;
static guint lid_sensor_enabled_setting_id = 0;
/** When to react to keyboard open */
static gint tklock_kbd_open_trigger = MCE_DEFAULT_TK_KBD_OPEN_TRIGGER;
static guint tklock_kbd_open_trigger_setting_id = 0;
/** How to react to keyboard open */
static gint tklock_kbd_open_actions = MCE_DEFAULT_TK_KBD_OPEN_ACTIONS;
static guint tklock_kbd_open_actions_setting_id = 0;
/** When to react to keyboard close */
static gint tklock_kbd_close_trigger = MCE_DEFAULT_TK_KBD_CLOSE_TRIGGER;
static guint tklock_kbd_close_trigger_setting_id = 0;
/** How to react to keyboard close */
static gint tklock_kbd_close_actions = MCE_DEFAULT_TK_KBD_CLOSE_ACTIONS;
static guint tklock_kbd_close_actions_setting_id = 0;
/** Flag for: Using ALS is allowed */
static gboolean als_enabled = MCE_DEFAULT_DISPLAY_ALS_ENABLED;
static guint als_enabled_setting_id = 0;
/** Flag: Use ALS for lid close filtering */
static gboolean filter_lid_with_als = MCE_DEFAULT_TK_FILTER_LID_WITH_ALS;
static guint filter_lid_with_als_setting_id = 0;
/** Maximum amount of light ALS should report when LID is closed */
static gint filter_lid_als_limit = MCE_DEFAULT_TK_FILTER_LID_ALS_LIMIT;
static guint filter_lid_als_limit_setting_id = 0;
/** How long to keep display on after incoming call ends [ms] */
static gint exception_length_call_in = MCE_DEFAULT_TK_EXCEPT_LEN_CALL_IN;
static guint exception_length_call_in_setting_id = 0;
/** How long to keep display on after outgoing call ends [ms] */
static gint exception_length_call_out = MCE_DEFAULT_TK_EXCEPT_LEN_CALL_OUT;
static guint exception_length_call_out_setting_id = 0;
/** How long to keep display on after alarm is handled [ms] */
static gint exception_length_alarm = MCE_DEFAULT_TK_EXCEPT_LEN_ALARM;
static guint exception_length_alarm_setting_id = 0;
/** How long to keep display on when usb cable is connected [ms] */
static gint exception_length_usb_connect = MCE_DEFAULT_TK_EXCEPT_LEN_USB_CONNECT;
static guint exception_length_usb_connect_setting_id = 0;
/** How long to keep display on when usb mode dialog is shown [ms] */
static gint exception_length_usb_dialog = MCE_DEFAULT_TK_EXCEPT_LEN_USB_DIALOG;
static guint exception_length_usb_dialog_setting_id = 0;
/** How long to keep display on when charging starts [ms] */
static gint exception_length_charger = MCE_DEFAULT_TK_EXCEPT_LEN_CHARGER;
static guint exception_length_charger_setting_id = 0;
/** How long to keep display on after battery full [ms] */
static gint exception_length_battery = MCE_DEFAULT_TK_EXCEPT_LEN_BATTERY;
static guint exception_length_battery_setting_id = 0;
/** How long to keep display on when audio jack is inserted [ms] */
static gint exception_length_jack_in = MCE_DEFAULT_TK_EXCEPT_LEN_JACK_IN;
static guint exception_length_jack_in_setting_id = 0;
/** How long to keep display on when audio jack is removed [ms] */
static gint exception_length_jack_out = MCE_DEFAULT_TK_EXCEPT_LEN_JACK_OUT;
static guint exception_length_jack_out_setting_id = 0;
/** How long to keep display on when camera button is pressed [ms] */
static gint exception_length_camera = MCE_DEFAULT_TK_EXCEPT_LEN_CAMERA;
static guint exception_length_camera_setting_id = 0;
/** How long to keep display on when volume button is pressed [ms] */
static gint exception_length_volume = MCE_DEFAULT_TK_EXCEPT_LEN_VOLUME;
static guint exception_length_volume_setting_id = 0;
/** How long to extend display on when there is user activity [ms] */
static gint exception_length_activity = MCE_DEFAULT_TK_EXCEPT_LEN_ACTIVITY;
static guint exception_length_activity_setting_id = 0;
/** Flag for: Allow lockscreen animation during unblanking */
static gboolean lockscreen_anim_enabled = MCE_DEFAULT_TK_LOCKSCREEN_ANIM_ENABLED;
static guint lockscreen_anim_enabled_setting_id = 0;
/** Default delay for delaying proximity uncovered handling [ms] */
static gint tklock_proximity_delay_default = MCE_DEFAULT_TK_PROXIMITY_DELAY_DEFAULT;
static guint tklock_proximity_delay_default_setting_id = 0;
/** Delay for delaying proximity uncovered handling during calls [ms] */
static gint tklock_proximity_delay_incall = MCE_DEFAULT_TK_PROXIMITY_DELAY_INCALL;
static guint tklock_proximity_delay_incall_setting_id = 0;
/* ========================================================================= *
* probed control file paths
* ========================================================================= */
/** SysFS path to touchscreen event disable */
static output_state_t mce_touchscreen_sysfs_disable_output =
{
.context = "touchscreen_disable",
.truncate_file = TRUE,
.close_on_exit = TRUE,
};
/** SysFS path to touchscreen double-tap gesture control */
static const gchar *mce_touchscreen_gesture_enable_path = NULL;
/** SysFS path to touchscreen recalibration control */
static const gchar *mce_touchscreen_calibration_control_path = NULL;
/** SysFS path to keypad event disable */
static output_state_t mce_keypad_sysfs_disable_output =
{
.context = "keypad_disable",
.truncate_file = TRUE,
.close_on_exit = TRUE,
};
/* ========================================================================= *
* DATAPIPE VALUES AND TRIGGERS
* ========================================================================= */
/** Cached init_done state; assume unknown */
static tristate_t init_done = TRISTATE_UNKNOWN;
/** Proximity state history for triggering low power mode ui */
static ps_history_t tklock_lpmui_hist[8];
/** Current tklock ui state
*
* Access only via tklock_ui_is_enabled() / tklock_ui_set_enabled().
*/
static bool tklock_ui_enabled_pvt = false;
/** Current tklock ui state that has been sent to lipstick */
static int tklock_ui_notified = -1; // does not match bool values
/** System state; is undefined at bootup, can't assume anything */
static system_state_t system_state = MCE_SYSTEM_STATE_UNDEF;
/** Display state; undefined initially, can't assume anything */
static display_state_t display_state_curr = MCE_DISPLAY_UNDEF;
/** Next Display state; undefined initially, can't assume anything */
static display_state_t display_state_next = MCE_DISPLAY_UNDEF;
/** Call state; assume no active calls */
static call_state_t call_state = CALL_STATE_NONE;
/** Actual proximity state; assume not covered */
static cover_state_t proximity_sensor_actual = COVER_OPEN;
/** Effective proximity state; assume not covered */
static cover_state_t proximity_sensor_effective = COVER_OPEN;
/** Lid cover sensor state; assume unkown
*
* When in covered state, it is assumed that it is not physically
* possible to see/interact with the display and thus it should
* stay powered off.
*
* Originally was used to track Nokia N770 slidable cover. Now
* it is used also for things like the hammerhead magnetic lid
* sensor.
*/
static cover_state_t lid_sensor_actual = COVER_UNDEF;
/** Lid cover policy state; assume unknown */
static cover_state_t lid_sensor_filtered = COVER_UNDEF;
/** Change notifications for system_state
*/
static void tklock_datapipe_system_state_cb(gconstpointer data)
{
system_state_t prev = system_state;
system_state = GPOINTER_TO_INT(data);
if( prev == system_state )
goto EXIT;
mce_log(LL_DEBUG, "system_state: %s -> %s",
system_state_repr(prev),
system_state_repr(system_state));
tklock_ui_set_enabled(false);
EXIT:
return;
}
/** Device lock state; assume undefined */
static devicelock_state_t devicelock_state = DEVICELOCK_STATE_UNDEFINED;
/** Push device lock state value into devicelock_state_pipe datapipe
*/
static void tklock_datapipe_set_devicelock_state(devicelock_state_t state)
{
switch( state ) {
case DEVICELOCK_STATE_UNLOCKED:
case DEVICELOCK_STATE_UNDEFINED:
case DEVICELOCK_STATE_LOCKED:
break;
default:
mce_log(LL_WARN, "unknown device lock state=%d; assuming locked",
state);
state = DEVICELOCK_STATE_LOCKED;
break;
}
if( devicelock_state != state ) {
datapipe_exec_full(&devicelock_state_pipe,
GINT_TO_POINTER(state),
DATAPIPE_USE_INDATA, DATAPIPE_CACHE_INDATA);
}
}
/** Change notifications for devicelock_state
*/
static void tklock_datapipe_devicelock_state_cb(gconstpointer data)
{
devicelock_state_t prev = devicelock_state;
devicelock_state = GPOINTER_TO_INT(data);
if( devicelock_state == prev )
goto EXIT;
mce_log(LL_DEVEL, "devicelock_state = %s -> %s",
devicelock_state_repr(prev),
devicelock_state_repr(devicelock_state));
tklock_uiexception_rethink();
tklock_autolock_rethink();
/* When lipstick is starting up we see device lock
* going through undefined -> locked/unlocked change.
* We must not trigger autolock due to these initial
* device lock transitions */
switch( prev ) {
case DEVICELOCK_STATE_UNDEFINED:
/* Block autolock for 60 seconds when leaving
* undefined state (= lipstick startup) */
tklock_autolock_on_devlock_block(60 * 1000);
break;
case DEVICELOCK_STATE_LOCKED:
/* Unblock autolock earlier if we see transition
* away from locked state (=unlocked by user) */
tklock_autolock_on_devlock_block(0);
break;
default:
break;
}
switch( devicelock_state ) {
case DEVICELOCK_STATE_LOCKED:
tklock_autolock_on_devlock_trigger();
break;
case DEVICELOCK_STATE_UNLOCKED:
switch( display_state_next ) {
case MCE_DISPLAY_OFF:
case MCE_DISPLAY_LPM_OFF:
case MCE_DISPLAY_LPM_ON:
/* Transitions from undefined -> unlocked state occur
* during device bootup / mce restart and should not
* cause any actions.
*/
if( prev == DEVICELOCK_STATE_UNDEFINED )
break;
/* Devicelock ui keeps fingerprint scanner active in LPM state
* and unlocks device on identify, but omits unlock feedback
* and leaves the display state as-is.
*
* As a workaround, execute unlock feedback from mce. Then
* exit from LPM by requesting display power up and removal
* of tklock submode.
*
* While this is mostly relevant to LPM, apply the same logic
* also when in actually powered off display states to guard
* against timing glitches (getting fingerprint identification
* when already decided to exit LPM, etc) and changes in device
* lock ui side logic.
*/
mce_log(LL_WARN, "device got unlocked while display is off; "
"assume fingerprint authentication occurred");
datapipe_exec_output_triggers(&ngfd_event_request_pipe,
"unlock_device",
DATAPIPE_USE_INDATA);
if( proximity_sensor_actual != COVER_OPEN ) {
mce_log(LL_WARN, "unblank skipped due to proximity sensor");
break;
}
mce_datapipe_request_display_state(MCE_DISPLAY_ON);
mce_datapipe_request_tklock(TKLOCK_REQUEST_OFF);
break;
default:
break;
}
break;
default:
break;
}
EXIT:
return;
}
/** Resumed from suspend notification */
static void tklock_datapipe_resume_detected_event_cb(gconstpointer data)
{
(void) data;
/* Re-evaluate proximity locking after resuming from
* suspend. */
tklock_proxlock_resume();
}
/** devicelock dbus name is reserved; assume unknown */
static service_state_t devicelock_service_state = SERVICE_STATE_UNDEF;
/** Change notifications for devicelock_service_state
*/
static void tklock_datapipe_devicelock_service_state_cb(gconstpointer data)
{
service_state_t prev = devicelock_service_state;
devicelock_service_state = GPOINTER_TO_INT(data);
if( devicelock_service_state == prev )
goto EXIT;
mce_log(LL_DEBUG, "devicelock_service_state = %s -> %s",
service_state_repr(prev),
service_state_repr(devicelock_service_state));
if( devicelock_service_state == SERVICE_STATE_RUNNING ) {
/* query initial device lock state on devicelock/mce startup */
tklock_ui_get_devicelock();
}
else {
/* if device lock service is not running, the device lock
* state is undefined */
tklock_datapipe_set_devicelock_state(DEVICELOCK_STATE_UNDEFINED);
}
EXIT:
return;
}
/** Lipstick dbus name is reserved; assume false */
static service_state_t lipstick_service_state = SERVICE_STATE_UNDEF;
/** Change notifications for lipstick_service_state
*/
static void tklock_datapipe_lipstick_service_state_cb(gconstpointer data)
{
service_state_t prev = lipstick_service_state;
lipstick_service_state = GPOINTER_TO_INT(data);
if( lipstick_service_state == prev )
goto EXIT;
mce_log(LL_DEBUG, "lipstick_service_state = %s -> %s",
service_state_repr(prev),
service_state_repr(lipstick_service_state));
// force tklock ipc
tklock_ui_notified = -1;
tklock_ui_set_enabled(false);
EXIT:
return;
}
/** Update mode is active; assume false */
static bool osupdate_running = false;
/** Change notifications for osupdate_running
*/
static void tklock_datapipe_osupdate_running_cb(gconstpointer data)
{
bool prev = osupdate_running;
osupdate_running = GPOINTER_TO_INT(data);
if( osupdate_running == prev )
goto EXIT;
mce_log(LL_DEBUG, "osupdate_running = %d -> %d", prev, osupdate_running);
if( osupdate_running ) {
/* undo tklock when update mode starts */
mce_datapipe_request_tklock(TKLOCK_REQUEST_OFF);
}
EXIT:
return;
}
/** Device is shutting down; assume false */
static bool shutting_down = false;
/** Change notifications for shutting_down
*/
static void tklock_datapipe_shutting_down_cb(gconstpointer data)
{
bool prev = shutting_down;
shutting_down = GPOINTER_TO_INT(data);
if( shutting_down == prev )
goto EXIT;
mce_log(LL_DEBUG, "shutting_down = %d -> %d",
prev, shutting_down);
tklock_evctrl_rethink();
EXIT:
return;
}
/** Autorelock trigger: assume disabled */
static autorelock_t autorelock_trigger = AUTORELOCK_NO_TRIGGERS;
/** Change notifications for display_state_curr
*/
static void tklock_datapipe_display_state_curr_cb(gconstpointer data)
{
display_state_t prev = display_state_curr;
display_state_curr = GPOINTER_TO_INT(data);
if( display_state_curr == prev )
goto EXIT;
mce_log(LL_DEBUG, "display_state_curr = %s -> %s",
display_state_repr(prev),
display_state_repr(display_state_curr));
tklock_lidfilter_rethink_allow_close();
/* Disable "wakeup with fake policy" hack
* when any stable display state is reached */
if( display_state_curr != MCE_DISPLAY_POWER_UP &&
display_state_curr != MCE_DISPLAY_POWER_DOWN )
tklock_uiexception_end(UIEXCEPTION_TYPE_NOANIM, 0);
if( display_state_curr == MCE_DISPLAY_DIM )
tklock_ui_eat_event();
tklock_uiexception_rethink();
tklock_autolock_rethink();
tklock_proxlock_rethink();
tklock_evctrl_rethink();
tklock_ui_notify_schdule();
EXIT:
return;
}
/** Pre-change notifications for display_state_curr
*/
static void tklock_datapipe_display_state_next_cb(gconstpointer data)
{
display_state_next = GPOINTER_TO_INT(data);
mce_log(LL_DEBUG, "display_state_next = %s -> %s",
display_state_repr(display_state_curr),
display_state_repr(display_state_next));
if( display_state_next == display_state_curr )
goto EXIT;
/* Cancel autorelock on display off */
switch( display_state_next ) {
case MCE_DISPLAY_ON:
case MCE_DISPLAY_DIM:
/* display states that use normal ui */
break;
default:
/* display powered off, showing lpm, etc */
if( autorelock_trigger != AUTORELOCK_NO_TRIGGERS ) {
mce_log(LL_DEBUG, "autorelock canceled: display off");
autorelock_trigger = AUTORELOCK_NO_TRIGGERS;
}
break;
}
tklock_autolock_on_devlock_prime();
tklock_autolock_rethink();
tklock_proxlock_rethink();
tklock_lpmui_pre_transition_actions();
tklock_ui_notify_schdule();
EXIT:
return;
}
/** Timer id for delayed proximity uncovering */
static guint tklock_datapipe_proximity_uncover_id = 0;
/** Set effective proximity state from current sensor state
*/
static void tklock_datapipe_proximity_update(void)
{
if( proximity_sensor_effective == proximity_sensor_actual )
goto EXIT;
mce_log(LL_DEBUG, "proximity_sensor_effective = %s -> %s",
proximity_state_repr(proximity_sensor_effective),
proximity_state_repr(proximity_sensor_actual));
proximity_sensor_effective = proximity_sensor_actual;
tklock_uiexception_rethink();
tklock_proxlock_rethink();
tklock_evctrl_rethink();
/* consider moving to lpm ui */
tklock_lpmui_rethink();