/
powerkey.c
2231 lines (1833 loc) · 62.4 KB
/
powerkey.c
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/**
* @file powerkey.c
* Power key logic for the Mode Control Entity
* <p>
* Copyright © 2004-2011 Nokia Corporation and/or its subsidiary(-ies).
* Copyright © 2014 Jolla Ltd.
* <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 "powerkey.h"
#include "mce.h"
#include "mce-log.h"
#include "mce-conf.h"
#include "mce-gconf.h"
#include "mce-dbus.h"
#include "mce-dsme.h"
#ifdef ENABLE_WAKELOCKS
# include "libwakelock.h"
#endif
#include <linux/input.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <mce/dbus-names.h>
/* ========================================================================= *
* OVERVIEW
*
* There is a predefined set of actions. Of these two are dbus actions
* that by default make mce broadcast dbus signals, but can be configured
* to make any dbus method call with optional string argument.
*
* Any combination of these actions can be bound to:
* - single power key press
* - double power key press
* - long power key press
*
* The selected actions are executed in a fixed order and actions that
* are common to both single and double press are executed immediately
* after powerkey is released. This allows double press configuration
* to extend what would be done with single press without causing
* delays for single press handling.
*
* Separate combinations are used depending on whether the
* display is on or off during the 1st power key press.
*
* The build-in defaults are as follows
*
* From display off:
* - single press - turns display on
* - double press - turns display on and hides lockscreen (but not device lock)
* - long press - does nothing
*
* From display on:
* - single press - turns display off and activates locksreen
* - double press - turns display off, activates locksreen and locks device
* - long press - initiates shutdown (if lockscreen is not active)
*
* Effectively this is just as before, except for the double press
* actions to apply device lock / wake up to home screen.
* ========================================================================= */
/* ========================================================================= *
* PROTOTYPES
* ========================================================================= */
/* ------------------------------------------------------------------------- *
* MISC_UTIL
* ------------------------------------------------------------------------- */
/* Null tolerant string equality predicate
*
* @param s1 string
* @param s2 string
*
* @return true if both s1 and s2 are null or same string, false otherwise
*/
static inline bool eq(const char *s1, const char *s2)
{
return (s1 && s2) ? !strcmp(s1, s2) : (s1 == s2);
}
/** String is NULL or empty predicate
*/
static inline bool empty(const char *s)
{
return s == 0 || *s == 0;
}
static int64_t pwrkey_get_boot_tick(void);
static char *pwrkey_get_token(char **ppos);
static bool pwrkey_create_flagfile(const char *path);
static bool pwrkey_delete_flagfile(const char *path);
/* ------------------------------------------------------------------------- *
* PS_OVERRIDE
*
* Provides escape from stuck proximity sensor.
* ------------------------------------------------------------------------- */
/** [setting] Power key press count for proximity sensor override */
static gint pwrkey_ps_override_count = 3;
/** GConf callback ID for pwrkey_ps_override_count */
static guint pwrkey_ps_override_count_gconf_id = 0;
/** [setting] Maximum time between power key presses for proximity sensor override */
static gint pwrkey_ps_override_timeout = 333;
/** GConf callback ID for pwrkey_ps_override_timeout */
static guint pwrkey_ps_override_timeout_gconf_id = 0;
static void pwrkey_ps_override_evaluate(void);
/* ------------------------------------------------------------------------- *
* ACTION_EXEC
*
* Individual actions that can be taken.
* ------------------------------------------------------------------------- */
static gint pwrkey_action_blank_mode = PWRKEY_BLANK_TO_OFF;
static guint pwrkey_action_blank_mode_gconf_id = 0;
static void pwrkey_action_shutdown (void);
static void pwrkey_action_tklock (void);
static void pwrkey_action_blank (void);
static void pwrkey_action_unblank (void);
static void pwrkey_action_tkunlock (void);
static void pwrkey_action_devlock (void);
static void pwrkey_action_dbus1 (void);
static void pwrkey_action_dbus2 (void);
static void pwrkey_action_dbus3 (void);
static void pwrkey_action_dbus4 (void);
static void pwrkey_action_dbus5 (void);
static void pwrkey_action_dbus6 (void);
/* ------------------------------------------------------------------------- *
* ACTION_SETS
*
* Handle sets of individual actions.
* ------------------------------------------------------------------------- */
typedef struct
{
const char *name;
void (*func)(void);
} pwrkey_bitconf_t;
static void pwrkey_mask_execute (uint32_t mask);
static uint32_t pwrkey_mask_from_name (const char *name);
static uint32_t pwrkey_mask_from_names (const char *names);
static gchar *pwrkey_mask_to_names (uint32_t mask);
/* ------------------------------------------------------------------------- *
* ACTION_TRIGGERING
* ------------------------------------------------------------------------- */
typedef struct
{
/** Actions common to single and double press */
uint32_t mask_common;
/** Actions for single press */
uint32_t mask_single;
/** Actions for double press */
uint32_t mask_double;
/** Actions for long press */
uint32_t mask_long;
} pwrkey_actions_t;
/** Actions when power key is pressed while display is on */
static pwrkey_actions_t pwrkey_actions_from_display_on = { 0, 0, 0, 0 };
/** Actions when power key is pressed while display is off */
static pwrkey_actions_t pwrkey_actions_from_display_off = { 0, 0, 0, 0 };
/** Currently selected power key actions; default to turning display on */
static pwrkey_actions_t *pwrkey_actions_now =
&pwrkey_actions_from_display_off;
static gchar *pwrkey_actions_single_on = 0;
static guint pwrkey_actions_single_on_gconf_id = 0;
static gchar *pwrkey_actions_double_on = 0;
static guint pwrkey_actions_double_on_gconf_id = 0;
static gchar *pwrkey_actions_long_on = 0;
static guint pwrkey_actions_long_on_gconf_id = 0;
static gchar *pwrkey_actions_single_off = 0;
static guint pwrkey_actions_single_off_gconf_id = 0;
static gchar *pwrkey_actions_double_off = 0;
static guint pwrkey_actions_double_off_gconf_id = 0;
static gchar *pwrkey_actions_long_off = 0;
static guint pwrkey_actions_long_off_gconf_id = 0;
static void pwrkey_actions_parse (pwrkey_actions_t *self, const char *names_single, const char *names_double, const char *names_long);
static void pwrkey_actions_do_common (void);
static void pwrkey_actions_do_single_press (void);
static void pwrkey_actions_do_double_press (void);
static void pwrkey_actions_do_long_press (void);
static bool pwrkey_actions_use_double_press(void);
static void pwrkey_actions_select (bool display_is_on);
/* ------------------------------------------------------------------------- *
* LONG_PRESS_TIMEOUT
*
* timer for telling apart short and long power key presses
* ------------------------------------------------------------------------- */
static gint pwrkey_long_press_delay = DEFAULT_POWERKEY_LONG_DELAY;
static guint pwrkey_long_press_delay_gconf_id = 0;
static guint pwrkey_long_press_timer_id = 0;
static gboolean pwrkey_long_press_timer_cb (gpointer aptr);
static void pwrkey_long_press_timer_start (void);
static bool pwrkey_long_press_timer_pending (void);
static bool pwrkey_long_press_timer_cancel (void);
/* ------------------------------------------------------------------------- *
* DOUBLE_PRESS_TIMEOUT
*
* timer for telling apart single and double power key presses
* ------------------------------------------------------------------------- */
static gint pwrkey_double_press_delay = DEFAULT_POWERKEY_DOUBLE_DELAY;
static guint pwrkey_double_press_delay_gconf_id = 0;
static guint pwrkey_double_press_timer_id = 0;
static gboolean pwrkey_double_press_timer_cb(gpointer aptr);
static bool pwrkey_double_press_timer_pending(void);
static bool pwrkey_double_press_timer_cancel(void);
static void pwrkey_double_press_timer_start(void);
/* ------------------------------------------------------------------------- *
* DBUS_ACTIONS
*
* emitting dbus signal from mce / making dbus method call to some service
* ------------------------------------------------------------------------- */
#define DBUS_ACTIONS_COUNT 6
/** Flag file for: Possibly dangerous dbus action in progress
*
* Used for resetting dbus action config if it causes mce to crash.
*
* Using tmpfs is problematic from permissions point of view, but we do
* not want to cause flash wear by this either.
*/
static const char pwrkey_dbus_action_flag[] =
"/tmp/mce-powerkey-dbus-action.flag";
typedef struct
{
const char *gconf_key;
const char *gconf_def;
gchar *gconf_val;
guint gconf_id;
char *destination;
char *object;
char *interface;
char *member;
char *argument;
} pwrkey_dbus_action_t;
static pwrkey_dbus_action_t pwrkey_dbus_action[DBUS_ACTIONS_COUNT] =
{
{
.gconf_key = MCE_GCONF_POWERKEY_DBUS_ACTION1,
.gconf_def = DEFAULT_POWERKEY_DBUS_ACTION1,
.gconf_val = 0,
.gconf_id = 0,
},
{
.gconf_key = MCE_GCONF_POWERKEY_DBUS_ACTION2,
.gconf_def = DEFAULT_POWERKEY_DBUS_ACTION2,
.gconf_val = 0,
.gconf_id = 0,
},
{
.gconf_key = MCE_GCONF_POWERKEY_DBUS_ACTION3,
.gconf_def = DEFAULT_POWERKEY_DBUS_ACTION3,
.gconf_val = 0,
.gconf_id = 0,
},
{
.gconf_key = MCE_GCONF_POWERKEY_DBUS_ACTION4,
.gconf_def = DEFAULT_POWERKEY_DBUS_ACTION4,
.gconf_val = 0,
.gconf_id = 0,
},
{
.gconf_key = MCE_GCONF_POWERKEY_DBUS_ACTION5,
.gconf_def = DEFAULT_POWERKEY_DBUS_ACTION5,
.gconf_val = 0,
.gconf_id = 0,
},
{
.gconf_key = MCE_GCONF_POWERKEY_DBUS_ACTION6,
.gconf_def = DEFAULT_POWERKEY_DBUS_ACTION6,
.gconf_val = 0,
.gconf_id = 0,
},
};
static void pwrkey_dbus_action_clear(pwrkey_dbus_action_t *self);
static void pwrkey_dbus_action_reset(pwrkey_dbus_action_t *self);
static bool pwrkey_dbus_action_is_methodcall(const pwrkey_dbus_action_t *self);
static bool pwrkey_dbus_action_is_signal(const pwrkey_dbus_action_t *self);
static void pwrkey_dbus_action_parse(pwrkey_dbus_action_t *self);
static gchar *pwrkey_dbus_action_to_string(const pwrkey_dbus_action_t *self);
static void pwrkey_dbus_action_sanitize(pwrkey_dbus_action_t *self);
static void pwrkey_dbus_action_execute(size_t index);
/* ------------------------------------------------------------------------- *
* STATE_MACHINE
*
* main logic for tracking power key presses and associated timers
*
* state transition graph can be generated from "powerkey.dot" file
* ------------------------------------------------------------------------- */
/** Diplay state when power key was pressed */
static display_state_t pwrkey_stm_display_state = MCE_DISPLAY_UNDEF;
/** [setting] Power key press enable mode */
static gint pwrkey_stm_enable_mode = PWRKEY_ENABLE_DEFAULT;
static guint pwrkey_stm_enable_mode_gconf_id = 0;
static void pwrkey_stm_long_press_timeout (void);
static void pwrkey_stm_double_press_timeout (void);
static void pwrkey_stm_powerkey_pressed (void);
static void pwrkey_stm_powerkey_released (void);
static bool pwrkey_stm_ignore_action (void);
static bool pwrkey_stm_pending_timers (void);
static void pwrkey_stm_rethink_wakelock (void);
static void pwrkey_stm_store_initial_state (void);
static void pwrkey_stm_terminate (void);
/* ------------------------------------------------------------------------- *
* DBUS_IPC
*
* handling incoming and outgoing dbus messages
* ------------------------------------------------------------------------- */
static void pwrkey_dbus_send_signal(const char *sig, const char *arg);
static gboolean pwrkey_dbus_trigger_event_cb(DBusMessage *const req);
static void pwrkey_dbus_init(void);
static void pwrkey_dbus_quit(void);
/* ------------------------------------------------------------------------- *
* GCONF_SETTINGS
*
* tracking powerkey related runtime changeable settings
* ------------------------------------------------------------------------- */
static gint pwrkey_gconf_sanitize_id = 0;
static gboolean pwrkey_gconf_sanitize_cb (gpointer aptr);
static void pwrkey_gconf_sanitize_now (void);
static void pwrkey_gconf_sanitize_later (void);
static void pwrkey_gconf_sanitize_cancel (void);
static void pwrkey_gconf_cb(GConfClient *const gcc, const guint id, GConfEntry *const entry, gpointer const data);
static void pwrkey_gconf_init(void);
static void pwrkey_gconf_quit(void);
/* ------------------------------------------------------------------------- *
* DATAPIPE_HANDLING
*
* reacting to state changes / input from other mce modules
* ------------------------------------------------------------------------- */
static void pwrkey_datapipes_keypress_cb(gconstpointer const data);
static void pwrkey_datapipes_init(void);
static void pwrkey_datapipes_quit(void);
/* ------------------------------------------------------------------------- *
* MODULE_INTEFACE
* ------------------------------------------------------------------------- */
gboolean mce_powerkey_init(void);
void mce_powerkey_exit(void);
/* ========================================================================= *
* MISC_UTIL
* ========================================================================= */
/** Get CLOCK_BOOTTIME time stamp in milliseconds
*/
static int64_t
pwrkey_get_boot_tick(void)
{
int64_t res = 0;
struct timespec ts;
if( clock_gettime(CLOCK_BOOTTIME, &ts) == 0 ) {
res = ts.tv_sec;
res *= 1000;
res += ts.tv_nsec / 1000000;
}
return res;
}
/** Parse element from comma separated string list
*/
static char *
pwrkey_get_token(char **ppos)
{
char *pos = *ppos;
char *beg = pos;
if( !pos )
goto cleanup;
for( ; *pos; ++pos ) {
if( *pos != ',' )
continue;
*pos++ = 0;
break;
}
cleanup:
return *ppos = pos, beg;
}
/** Create an empty flag file
*
* @param path Path to the file to create
*
* @return true if file was created, false otherwise
*/
static bool pwrkey_create_flagfile(const char *path)
{
bool created = false;
int fd = open(path, O_WRONLY|O_CREAT|O_EXCL|O_TRUNC, 0666);
if( fd != -1 ) {
close(fd);
created = true;
}
return created;
}
/** Delete a flag file
*
* @param path Path to the file to create
*
* @return true if file was removed, false otherwise
*/
static bool pwrkey_delete_flagfile(const char *path)
{
bool deleted = false;
if( unlink(path) == 0 ) {
deleted = true;
}
return deleted;
}
/* ========================================================================= *
* PS_OVERRIDE
* ========================================================================= */
/** Provide an emergency way out from stuck proximity sensor
*
* If the proximity sensor is dirty/faulty and stuck to "covered"
* state, it can leave the phone in a state where it is impossible
* to do anything about incoming call, ringing alarm.
*
* To offer somekind of remedy for the situation, this function
* allows user to force proximity sensor to "uncovered" state
* by rapidly pressing power button several times.
*/
static void
pwrkey_ps_override_evaluate(void)
{
static int64_t t_last = 0;
static gint count = 0;
/* If the feature is disabled, just reset the counter */
if( pwrkey_ps_override_count <= 0 ||
pwrkey_ps_override_timeout <= 0 ) {
t_last = 0, count = 0;
goto EXIT;
}
cover_state_t proximity_sensor_state =
datapipe_get_gint(proximity_sensor_pipe);
/* If the sensor is not covered, just reset the counter */
if( proximity_sensor_state != COVER_CLOSED ) {
t_last = 0, count = 0;
goto EXIT;
}
int64_t t_now = pwrkey_get_boot_tick();
/* If the previous power key press was too far in
* the past, start counting from zero again */
if( t_now > t_last + pwrkey_ps_override_timeout ) {
mce_log(LL_DEBUG, "ps override count restarted");
count = 0;
}
t_last = t_now;
/* If configured number of power key presses within the time
* limits has been reached, force proximity sensor state to
* "uncovered".
*
* This should allow touch input ungrabbing and turning
* display on during incoming call / alarm.
*
* If sensor gets unstuck and new proximity readings are
* received, this override will be automatically undone.
*/
if( ++count == pwrkey_ps_override_count ) {
mce_log(LL_CRIT, "assuming stuck proximity sensor;"
" faking uncover event");
execute_datapipe(&proximity_sensor_pipe,
GINT_TO_POINTER(COVER_OPEN),
USE_INDATA, CACHE_INDATA);
t_last = 0, count = 0;
}
else
mce_log(LL_DEBUG, "ps override count = %d", count);
EXIT:
return;
}
/* ========================================================================= *
* ACTION_EXEC
* ========================================================================= */
static void
pwrkey_action_shutdown(void)
{
submode_t submode = mce_get_submode_int32();
/* Do not shutdown if the tklock is active */
if( submode & MCE_TKLOCK_SUBMODE )
goto EXIT;
mce_log(LL_DEVEL, "Requesting shutdown");
mce_dsme_request_normal_shutdown();
EXIT:
return;
}
static void
pwrkey_action_tklock(void)
{
mce_log(LL_DEBUG, "Requesting tklock=on");
execute_datapipe(&tk_lock_pipe,
GINT_TO_POINTER(LOCK_ON),
USE_INDATA, CACHE_INDATA);
}
static void
pwrkey_action_tkunlock(void)
{
display_state_t target = datapipe_get_gint(display_state_next_pipe);
/* Only unlock if we are in/entering fully powered on display state */
switch( target ) {
case MCE_DISPLAY_ON:
case MCE_DISPLAY_DIM:
break;
default:
goto EXIT;
}
mce_log(LL_DEBUG, "Requesting tklock=off");
execute_datapipe(&tk_lock_pipe,
GINT_TO_POINTER(LOCK_OFF),
USE_INDATA, CACHE_INDATA);
EXIT:
return;
}
static void
pwrkey_action_blank(void)
{
display_state_t request = MCE_DISPLAY_OFF;
switch( pwrkey_action_blank_mode ) {
case PWRKEY_BLANK_TO_LPM:
request = MCE_DISPLAY_LPM_ON;
break;
case PWRKEY_BLANK_TO_OFF:
default:
break;
}
execute_datapipe(&display_state_req_pipe,
GINT_TO_POINTER(request),
USE_INDATA, CACHE_INDATA);
}
static void
pwrkey_action_unblank(void)
{
mce_log(LL_DEVEL, "Requesting device_lock=on");
execute_datapipe(&display_state_req_pipe,
GINT_TO_POINTER(MCE_DISPLAY_ON),
USE_INDATA, CACHE_INDATA);
}
static void
pwrkey_action_devlock(void)
{
static const char service[] = "org.nemomobile.lipstick";
static const char object[] = "/devicelock";
static const char interface[] = "org.nemomobile.lipstick.devicelock";
static const char method[] = "setState";
dbus_int32_t locked = TRUE;
dbus_send(service, object, interface, method, 0,
DBUS_TYPE_INT32, &locked,
DBUS_TYPE_INVALID);
}
static void
pwrkey_action_dbus1(void)
{
pwrkey_dbus_action_execute(0);
}
static void
pwrkey_action_dbus2(void)
{
pwrkey_dbus_action_execute(1);
}
static void
pwrkey_action_dbus3(void)
{
pwrkey_dbus_action_execute(2);
}
static void
pwrkey_action_dbus4(void)
{
pwrkey_dbus_action_execute(3);
}
static void
pwrkey_action_dbus5(void)
{
pwrkey_dbus_action_execute(4);
}
static void
pwrkey_action_dbus6(void)
{
pwrkey_dbus_action_execute(5);
}
/* ========================================================================= *
* ACTION_SETS
* ========================================================================= */
/** Config string to callback function mapping
*
* The configured actions are executed in order defined by this array.
*
* This is needed for determining actions that common to both single and
* double press handling.
*/
static const pwrkey_bitconf_t pwrkey_action_lut[] =
{
// Direction: ON->OFF
{
.name = "blank",
.func = pwrkey_action_blank,
},
{
.name = "tklock",
.func = pwrkey_action_tklock,
},
{
.name = "devlock",
.func = pwrkey_action_devlock,
},
{
.name = "shutdown",
.func = pwrkey_action_shutdown,
},
// Direction: OFF->ON
{
.name = "unblank",
.func = pwrkey_action_unblank,
},
{
.name = "tkunlock",
.func = pwrkey_action_tkunlock,
},
// D-Bus actions
{
.name = "dbus1",
.func = pwrkey_action_dbus1,
},
{
.name = "dbus2",
.func = pwrkey_action_dbus2,
},
{
.name = "dbus3",
.func = pwrkey_action_dbus3,
},
{
.name = "dbus4",
.func = pwrkey_action_dbus4,
},
{
.name = "dbus5",
.func = pwrkey_action_dbus5,
},
{
.name = "dbus6",
.func = pwrkey_action_dbus6,
},
};
static void
pwrkey_mask_execute(uint32_t mask)
{
for( size_t i = 0; i < G_N_ELEMENTS(pwrkey_action_lut); ++i ) {
if( mask & (1u << i) ) {
mce_log(LL_DEBUG, "* exec(%s)", pwrkey_action_lut[i].name);
pwrkey_action_lut[i].func();
}
}
}
static uint32_t
pwrkey_mask_from_name(const char *name)
{
uint32_t mask = 0;
for( size_t i = 0; i < G_N_ELEMENTS(pwrkey_action_lut); ++i ) {
if( strcmp(pwrkey_action_lut[i].name, name) )
continue;
mask |= 1u << i;
break;
}
return mask;
}
static uint32_t
pwrkey_mask_from_names(const char *names)
{
uint32_t mask = 0;
char *work = 0;
char *pos;
char *end;
if( !names )
goto EXIT;
if( !(work = strdup(names)) )
goto EXIT;
for( pos = work; pos; pos = end ) {
if( (end = strchr(pos, ',')) )
*end++ = 0;
mask |= pwrkey_mask_from_name(pos);
}
EXIT:
free(work);
return mask;
}
static gchar *
pwrkey_mask_to_names(uint32_t mask)
{
char tmp[256];
char *pos = tmp;
char *end = tmp + sizeof tmp - 1;
auto void add(const char *str)
{
while( pos < end && *str )
*pos++ = *str++;
};
for( size_t i = 0; i < G_N_ELEMENTS(pwrkey_action_lut); ++i ) {
if( mask & (1u << i) ) {
if( pos > tmp )
add(",");
add(pwrkey_action_lut[i].name);
}
}
*pos = 0;
return g_strdup(tmp);
}
/* ========================================================================= *
* ACTION_TRIGGERING
* ========================================================================= */
static void
pwrkey_actions_do_common(void)
{
pwrkey_mask_execute(pwrkey_actions_now->mask_common);
}
static void
pwrkey_actions_do_single_press(void)
{
pwrkey_mask_execute(pwrkey_actions_now->mask_single);
}
static bool
pwrkey_actions_use_double_press(void)
{
return pwrkey_actions_now->mask_double != 0;
}
static void
pwrkey_actions_do_double_press(void)
{
pwrkey_mask_execute(pwrkey_actions_now->mask_double);
}
static void
pwrkey_actions_do_long_press(void)
{
system_state_t state = datapipe_get_gint(system_state_pipe);
/* The action configuration applies only in the USER mode */
switch( state ) {
case MCE_STATE_SHUTDOWN:
case MCE_STATE_REBOOT:
/* Ignore if we're already shutting down/rebooting */
break;
case MCE_STATE_ACTDEAD:
/* Activate power on led pattern and power up to user mode*/
mce_log(LL_DEBUG, "activate MCE_LED_PATTERN_POWER_ON");
execute_datapipe_output_triggers(&led_pattern_activate_pipe,
MCE_LED_PATTERN_POWER_ON,
USE_INDATA);
mce_dsme_request_powerup();
break;
case MCE_STATE_USER:
/* Apply configured actions */
pwrkey_mask_execute(pwrkey_actions_now->mask_long);
break;
default:
/* Default to powering off */
mce_log(LL_WARN, "Requesting shutdown; state: %d",state);
mce_dsme_request_normal_shutdown();
break;
}
}
static bool
pwrkey_actions_update(const pwrkey_actions_t *self,
gchar **names_single,
gchar **names_double,
gchar **names_long)
{
bool changed = false;
auto void update(gchar **prev, gchar *curr)
{
if( !eq(*prev, curr) )
changed = true, g_free(*prev), *prev = curr, curr = 0;
g_free(curr);
}
update(names_single,
pwrkey_mask_to_names(self->mask_single | self->mask_common));
update(names_double,
pwrkey_mask_to_names(self->mask_double | self->mask_common));
update(names_long,
pwrkey_mask_to_names(self->mask_long));
return changed;
}
static void
pwrkey_actions_parse(pwrkey_actions_t *self,
const char *names_single,
const char *names_double,
const char *names_long)
{
/* Parse from configuration strings */
self->mask_common = 0;
self->mask_single = pwrkey_mask_from_names(names_single);
self->mask_double = pwrkey_mask_from_names(names_double);
self->mask_long = pwrkey_mask_from_names(names_long);
/* Separate leading actions that are common to both
* single and double press */
uint32_t diff = self->mask_single ^ self->mask_double;
uint32_t mask = (diff - 1) & ~diff;
uint32_t comm = self->mask_single & self->mask_double & mask;
self->mask_common |= comm;
self->mask_single &= ~comm;
self->mask_double &= ~comm;
}
static void pwrkey_actions_select(bool display_is_on)
{
if( display_is_on )
pwrkey_actions_now = &pwrkey_actions_from_display_on;
else
pwrkey_actions_now = &pwrkey_actions_from_display_off;
}
/* ========================================================================= *
* LONG_PRESS_TIMEOUT
* ========================================================================= */
static gboolean pwrkey_long_press_timer_cb(gpointer aptr)
{
(void) aptr;
if( !pwrkey_long_press_timer_id )
goto EXIT;
pwrkey_long_press_timer_id = 0;
pwrkey_stm_long_press_timeout();
pwrkey_stm_rethink_wakelock();
EXIT:
return FALSE;
}
static bool
pwrkey_long_press_timer_pending(void)
{
return pwrkey_long_press_timer_id != 0;