GitHub-Mirror/Star64_linux
2
0
Fork 0
mirror of https://github.com/Fishwaldo/Star64_linux.git synced 2025-07-23 23:32:14 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

rfkill: remove set_global_sw_state

Browse source 
rfkill_set_global_sw_state() (previously rfkill_set_default()) will no
longer be exported by the rewritten rfkill core.

Instead, platform drivers which can provide persistent soft-rfkill state
across power-down/reboot should indicate their initial state by calling
rfkill_set_sw_state() before registration.  Otherwise, they will be
initialized to a default value during registration by a set_block call.

We remove existing calls to rfkill_set_sw_state() which happen before
registration, since these had no effect in the old model.  If these
drivers do have persistent state, the calls can be put back (subject
to testing :-).  This affects hp-wmi and acer-wmi.

Drivers with persistent state will affect the global state only if
rfkill-input is enabled.  This is required, otherwise booting with
wireless soft-blocked and pressing the wireless-toggle key once would
have no apparent effect.  This special case will be removed in future
along with rfkill-input, in favour of a more flexible userspace daemon
(see Documentation/feature-removal-schedule.txt).

Now rfkill_global_states[n].def is only used to preserve global states
over EPO, it is renamed to ".sav".

Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Alan Jenkins 2009-06-08 13:27:27 +01:00 • committed by John W. Linville
parent 8f77f3849c
commit b3fa1329ea
6 changed files with 56 additions and 99 deletions
Download patch file Download diff file Expand all files Collapse all files

81
net/rfkill/core.c
View file

@ -57,6 +57,7 @@ struct rfkill {
bool registered;
bool suspended;
bool persistent;
const struct rfkill_ops *ops;
void *data;
@ -116,11 +117,9 @@ MODULE_PARM_DESC(default_state,
"Default initial state for all radio types, 0 = radio off");
static struct {
bool cur, def;
bool cur, sav;
} rfkill_global_states[NUM_RFKILL_TYPES];
static unsigned long rfkill_states_default_locked;
static bool rfkill_epo_lock_active;
@ -392,7 +391,7 @@ void rfkill_epo(void)
rfkill_set_block(rfkill, true);
for (i = 0; i < NUM_RFKILL_TYPES; i++) {
rfkill_global_states[i].def = rfkill_global_states[i].cur;
rfkill_global_states[i].sav = rfkill_global_states[i].cur;
rfkill_global_states[i].cur = true;
}
@ -417,7 +416,7 @@ void rfkill_restore_states(void)
rfkill_epo_lock_active = false;
for (i = 0; i < NUM_RFKILL_TYPES; i++)
__rfkill_switch_all(i, rfkill_global_states[i].def);
__rfkill_switch_all(i, rfkill_global_states[i].sav);
mutex_unlock(&rfkill_global_mutex);
}
@ -464,29 +463,6 @@ bool rfkill_get_global_sw_state(const enum rfkill_type type)
}
#endif
void rfkill_set_global_sw_state(const enum rfkill_type type, bool blocked)
{
BUG_ON(type == RFKILL_TYPE_ALL);
mutex_lock(&rfkill_global_mutex);
/* don't allow unblock when epo */
if (rfkill_epo_lock_active && !blocked)
goto out;
/* too late */
if (rfkill_states_default_locked & BIT(type))
goto out;
rfkill_states_default_locked |= BIT(type);
rfkill_global_states[type].cur = blocked;
rfkill_global_states[type].def = blocked;
out:
mutex_unlock(&rfkill_global_mutex);
}
EXPORT_SYMBOL(rfkill_set_global_sw_state);
bool rfkill_set_hw_state(struct rfkill *rfkill, bool blocked)
{
@ -532,13 +508,14 @@ bool rfkill_set_sw_state(struct rfkill *rfkill, bool blocked)
blocked = blocked || hwblock;
spin_unlock_irqrestore(&rfkill->lock, flags);
if (!rfkill->registered)
return blocked;
if (!rfkill->registered) {
rfkill->persistent = true;
} else {
if (prev != blocked && !hwblock)
schedule_work(&rfkill->uevent_work);
if (prev != blocked && !hwblock)
schedule_work(&rfkill->uevent_work);
rfkill_led_trigger_event(rfkill);
rfkill_led_trigger_event(rfkill);
}
return blocked;
}
@ -563,13 +540,14 @@ void rfkill_set_states(struct rfkill *rfkill, bool sw, bool hw)
spin_unlock_irqrestore(&rfkill->lock, flags);
if (!rfkill->registered)
return;
if (!rfkill->registered) {
rfkill->persistent = true;
} else {
if (swprev != sw || hwprev != hw)
schedule_work(&rfkill->uevent_work);
if (swprev != sw || hwprev != hw)
schedule_work(&rfkill->uevent_work);
rfkill_led_trigger_event(rfkill);
rfkill_led_trigger_event(rfkill);
}
}
EXPORT_SYMBOL(rfkill_set_states);
@ -888,15 +866,6 @@ int __must_check rfkill_register(struct rfkill *rfkill)
dev_set_name(dev, "rfkill%lu", rfkill_no);
rfkill_no++;
if (!(rfkill_states_default_locked & BIT(rfkill->type))) {
/* first of its kind */
BUILD_BUG_ON(NUM_RFKILL_TYPES >
sizeof(rfkill_states_default_locked) * 8);
rfkill_states_default_locked |= BIT(rfkill->type);
rfkill_global_states[rfkill->type].cur =
rfkill_global_states[rfkill->type].def;
}
list_add_tail(&rfkill->node, &rfkill_list);
error = device_add(dev);
@ -916,7 +885,17 @@ int __must_check rfkill_register(struct rfkill *rfkill)
if (rfkill->ops->poll)
schedule_delayed_work(&rfkill->poll_work,
round_jiffies_relative(POLL_INTERVAL));
schedule_work(&rfkill->sync_work);
if (!rfkill->persistent || rfkill_epo_lock_active) {
schedule_work(&rfkill->sync_work);
} else {
#ifdef CONFIG_RFKILL_INPUT
bool soft_blocked = !!(rfkill->state & RFKILL_BLOCK_SW);
if (!atomic_read(&rfkill_input_disabled))
__rfkill_switch_all(rfkill->type, soft_blocked);
#endif
}
rfkill_send_events(rfkill, RFKILL_OP_ADD);
@ -1193,7 +1172,7 @@ static int __init rfkill_init(void)
int i;
for (i = 0; i < NUM_RFKILL_TYPES; i++)
rfkill_global_states[i].def = !rfkill_default_state;
rfkill_global_states[i].cur = !rfkill_default_state;
error = class_register(&rfkill_class);
if (error)