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Diffstat (limited to 'net/rfkill/rfkill-input.c')
-rw-r--r--net/rfkill/rfkill-input.c268
1 files changed, 0 insertions, 268 deletions
diff --git a/net/rfkill/rfkill-input.c b/net/rfkill/rfkill-input.c
deleted file mode 100644
index e5b69556bb5..00000000000
--- a/net/rfkill/rfkill-input.c
+++ /dev/null
@@ -1,268 +0,0 @@
-/*
- * Input layer to RF Kill interface connector
- *
- * Copyright (c) 2007 Dmitry Torokhov
- */
-
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#include <linux/input.h>
-#include <linux/slab.h>
-#include <linux/workqueue.h>
-#include <linux/init.h>
-#include <linux/rfkill.h>
-
-#include "rfkill-input.h"
-
-MODULE_AUTHOR("Dmitry Torokhov <dtor@mail.ru>");
-MODULE_DESCRIPTION("Input layer to RF switch connector");
-MODULE_LICENSE("GPL");
-
-struct rfkill_task {
- struct work_struct work;
- enum rfkill_type type;
- struct mutex mutex; /* ensures that task is serialized */
- spinlock_t lock; /* for accessing last and desired state */
- unsigned long last; /* last schedule */
- enum rfkill_state desired_state; /* on/off */
-};
-
-static void rfkill_task_handler(struct work_struct *work)
-{
- struct rfkill_task *task = container_of(work, struct rfkill_task, work);
-
- mutex_lock(&task->mutex);
-
- rfkill_switch_all(task->type, task->desired_state);
-
- mutex_unlock(&task->mutex);
-}
-
-static void rfkill_task_epo_handler(struct work_struct *work)
-{
- rfkill_epo();
-}
-
-static DECLARE_WORK(epo_work, rfkill_task_epo_handler);
-
-static void rfkill_schedule_epo(void)
-{
- schedule_work(&epo_work);
-}
-
-static void rfkill_schedule_set(struct rfkill_task *task,
- enum rfkill_state desired_state)
-{
- unsigned long flags;
-
- if (unlikely(work_pending(&epo_work)))
- return;
-
- spin_lock_irqsave(&task->lock, flags);
-
- if (time_after(jiffies, task->last + msecs_to_jiffies(200))) {
- task->desired_state = desired_state;
- task->last = jiffies;
- schedule_work(&task->work);
- }
-
- spin_unlock_irqrestore(&task->lock, flags);
-}
-
-static void rfkill_schedule_toggle(struct rfkill_task *task)
-{
- unsigned long flags;
-
- if (unlikely(work_pending(&epo_work)))
- return;
-
- spin_lock_irqsave(&task->lock, flags);
-
- if (time_after(jiffies, task->last + msecs_to_jiffies(200))) {
- task->desired_state =
- rfkill_state_complement(task->desired_state);
- task->last = jiffies;
- schedule_work(&task->work);
- }
-
- spin_unlock_irqrestore(&task->lock, flags);
-}
-
-#define DEFINE_RFKILL_TASK(n, t) \
- struct rfkill_task n = { \
- .work = __WORK_INITIALIZER(n.work, \
- rfkill_task_handler), \
- .type = t, \
- .mutex = __MUTEX_INITIALIZER(n.mutex), \
- .lock = __SPIN_LOCK_UNLOCKED(n.lock), \
- .desired_state = RFKILL_STATE_UNBLOCKED, \
- }
-
-static DEFINE_RFKILL_TASK(rfkill_wlan, RFKILL_TYPE_WLAN);
-static DEFINE_RFKILL_TASK(rfkill_bt, RFKILL_TYPE_BLUETOOTH);
-static DEFINE_RFKILL_TASK(rfkill_uwb, RFKILL_TYPE_UWB);
-static DEFINE_RFKILL_TASK(rfkill_wimax, RFKILL_TYPE_WIMAX);
-static DEFINE_RFKILL_TASK(rfkill_wwan, RFKILL_TYPE_WWAN);
-
-static void rfkill_schedule_evsw_rfkillall(int state)
-{
- /* EVERY radio type. state != 0 means radios ON */
- /* handle EPO (emergency power off) through shortcut */
- if (state) {
- rfkill_schedule_set(&rfkill_wwan,
- RFKILL_STATE_UNBLOCKED);
- rfkill_schedule_set(&rfkill_wimax,
- RFKILL_STATE_UNBLOCKED);
- rfkill_schedule_set(&rfkill_uwb,
- RFKILL_STATE_UNBLOCKED);
- rfkill_schedule_set(&rfkill_bt,
- RFKILL_STATE_UNBLOCKED);
- rfkill_schedule_set(&rfkill_wlan,
- RFKILL_STATE_UNBLOCKED);
- } else
- rfkill_schedule_epo();
-}
-
-static void rfkill_event(struct input_handle *handle, unsigned int type,
- unsigned int code, int data)
-{
- if (type == EV_KEY && data == 1) {
- switch (code) {
- case KEY_WLAN:
- rfkill_schedule_toggle(&rfkill_wlan);
- break;
- case KEY_BLUETOOTH:
- rfkill_schedule_toggle(&rfkill_bt);
- break;
- case KEY_UWB:
- rfkill_schedule_toggle(&rfkill_uwb);
- break;
- case KEY_WIMAX:
- rfkill_schedule_toggle(&rfkill_wimax);
- break;
- default:
- break;
- }
- } else if (type == EV_SW) {
- switch (code) {
- case SW_RFKILL_ALL:
- rfkill_schedule_evsw_rfkillall(data);
- break;
- default:
- break;
- }
- }
-}
-
-static int rfkill_connect(struct input_handler *handler, struct input_dev *dev,
- const struct input_device_id *id)
-{
- struct input_handle *handle;
- int error;
-
- handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL);
- if (!handle)
- return -ENOMEM;
-
- handle->dev = dev;
- handle->handler = handler;
- handle->name = "rfkill";
-
- /* causes rfkill_start() to be called */
- error = input_register_handle(handle);
- if (error)
- goto err_free_handle;
-
- error = input_open_device(handle);
- if (error)
- goto err_unregister_handle;
-
- return 0;
-
- err_unregister_handle:
- input_unregister_handle(handle);
- err_free_handle:
- kfree(handle);
- return error;
-}
-
-static void rfkill_start(struct input_handle *handle)
-{
- /* Take event_lock to guard against configuration changes, we
- * should be able to deal with concurrency with rfkill_event()
- * just fine (which event_lock will also avoid). */
- spin_lock_irq(&handle->dev->event_lock);
-
- if (test_bit(EV_SW, handle->dev->evbit)) {
- if (test_bit(SW_RFKILL_ALL, handle->dev->swbit))
- rfkill_schedule_evsw_rfkillall(test_bit(SW_RFKILL_ALL,
- handle->dev->sw));
- /* add resync for further EV_SW events here */
- }
-
- spin_unlock_irq(&handle->dev->event_lock);
-}
-
-static void rfkill_disconnect(struct input_handle *handle)
-{
- input_close_device(handle);
- input_unregister_handle(handle);
- kfree(handle);
-}
-
-static const struct input_device_id rfkill_ids[] = {
- {
- .flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT,
- .evbit = { BIT_MASK(EV_KEY) },
- .keybit = { [BIT_WORD(KEY_WLAN)] = BIT_MASK(KEY_WLAN) },
- },
- {
- .flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT,
- .evbit = { BIT_MASK(EV_KEY) },
- .keybit = { [BIT_WORD(KEY_BLUETOOTH)] = BIT_MASK(KEY_BLUETOOTH) },
- },
- {
- .flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT,
- .evbit = { BIT_MASK(EV_KEY) },
- .keybit = { [BIT_WORD(KEY_UWB)] = BIT_MASK(KEY_UWB) },
- },
- {
- .flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT,
- .evbit = { BIT_MASK(EV_KEY) },
- .keybit = { [BIT_WORD(KEY_WIMAX)] = BIT_MASK(KEY_WIMAX) },
- },
- {
- .flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_SWBIT,
- .evbit = { BIT(EV_SW) },
- .swbit = { [BIT_WORD(SW_RFKILL_ALL)] = BIT_MASK(SW_RFKILL_ALL) },
- },
- { }
-};
-
-static struct input_handler rfkill_handler = {
- .event = rfkill_event,
- .connect = rfkill_connect,
- .disconnect = rfkill_disconnect,
- .start = rfkill_start,
- .name = "rfkill",
- .id_table = rfkill_ids,
-};
-
-static int __init rfkill_handler_init(void)
-{
- return input_register_handler(&rfkill_handler);
-}
-
-static void __exit rfkill_handler_exit(void)
-{
- input_unregister_handler(&rfkill_handler);
- flush_scheduled_work();
-}
-
-module_init(rfkill_handler_init);
-module_exit(rfkill_handler_exit);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-05 18:29:53 +0000