658358cec9
As I was testing with hwsim, I missed that my previous commit to make LED work depend on activation broke the code because I missed removing the old trigger struct and some code was still using it, now erroneously, causing crashes. Fix this by always using the correct struct. Reported-by: Felix Fietkau <nbd@openwrt.org> Tested-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
377 lines
10 KiB
C
377 lines
10 KiB
C
/*
|
|
* Copyright 2006, Johannes Berg <johannes@sipsolutions.net>
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
/* just for IFNAMSIZ */
|
|
#include <linux/if.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/export.h>
|
|
#include "led.h"
|
|
|
|
void ieee80211_led_assoc(struct ieee80211_local *local, bool associated)
|
|
{
|
|
if (!atomic_read(&local->assoc_led_active))
|
|
return;
|
|
if (associated)
|
|
led_trigger_event(&local->assoc_led, LED_FULL);
|
|
else
|
|
led_trigger_event(&local->assoc_led, LED_OFF);
|
|
}
|
|
|
|
void ieee80211_led_radio(struct ieee80211_local *local, bool enabled)
|
|
{
|
|
if (!atomic_read(&local->radio_led_active))
|
|
return;
|
|
if (enabled)
|
|
led_trigger_event(&local->radio_led, LED_FULL);
|
|
else
|
|
led_trigger_event(&local->radio_led, LED_OFF);
|
|
}
|
|
|
|
void ieee80211_alloc_led_names(struct ieee80211_local *local)
|
|
{
|
|
local->rx_led.name = kasprintf(GFP_KERNEL, "%srx",
|
|
wiphy_name(local->hw.wiphy));
|
|
local->tx_led.name = kasprintf(GFP_KERNEL, "%stx",
|
|
wiphy_name(local->hw.wiphy));
|
|
local->assoc_led.name = kasprintf(GFP_KERNEL, "%sassoc",
|
|
wiphy_name(local->hw.wiphy));
|
|
local->radio_led.name = kasprintf(GFP_KERNEL, "%sradio",
|
|
wiphy_name(local->hw.wiphy));
|
|
}
|
|
|
|
void ieee80211_free_led_names(struct ieee80211_local *local)
|
|
{
|
|
kfree(local->rx_led.name);
|
|
kfree(local->tx_led.name);
|
|
kfree(local->assoc_led.name);
|
|
kfree(local->radio_led.name);
|
|
}
|
|
|
|
static void ieee80211_tx_led_activate(struct led_classdev *led_cdev)
|
|
{
|
|
struct ieee80211_local *local = container_of(led_cdev->trigger,
|
|
struct ieee80211_local,
|
|
tx_led);
|
|
|
|
atomic_inc(&local->tx_led_active);
|
|
}
|
|
|
|
static void ieee80211_tx_led_deactivate(struct led_classdev *led_cdev)
|
|
{
|
|
struct ieee80211_local *local = container_of(led_cdev->trigger,
|
|
struct ieee80211_local,
|
|
tx_led);
|
|
|
|
atomic_dec(&local->tx_led_active);
|
|
}
|
|
|
|
static void ieee80211_rx_led_activate(struct led_classdev *led_cdev)
|
|
{
|
|
struct ieee80211_local *local = container_of(led_cdev->trigger,
|
|
struct ieee80211_local,
|
|
rx_led);
|
|
|
|
atomic_inc(&local->rx_led_active);
|
|
}
|
|
|
|
static void ieee80211_rx_led_deactivate(struct led_classdev *led_cdev)
|
|
{
|
|
struct ieee80211_local *local = container_of(led_cdev->trigger,
|
|
struct ieee80211_local,
|
|
rx_led);
|
|
|
|
atomic_dec(&local->rx_led_active);
|
|
}
|
|
|
|
static void ieee80211_assoc_led_activate(struct led_classdev *led_cdev)
|
|
{
|
|
struct ieee80211_local *local = container_of(led_cdev->trigger,
|
|
struct ieee80211_local,
|
|
assoc_led);
|
|
|
|
atomic_inc(&local->assoc_led_active);
|
|
}
|
|
|
|
static void ieee80211_assoc_led_deactivate(struct led_classdev *led_cdev)
|
|
{
|
|
struct ieee80211_local *local = container_of(led_cdev->trigger,
|
|
struct ieee80211_local,
|
|
assoc_led);
|
|
|
|
atomic_dec(&local->assoc_led_active);
|
|
}
|
|
|
|
static void ieee80211_radio_led_activate(struct led_classdev *led_cdev)
|
|
{
|
|
struct ieee80211_local *local = container_of(led_cdev->trigger,
|
|
struct ieee80211_local,
|
|
radio_led);
|
|
|
|
atomic_inc(&local->radio_led_active);
|
|
}
|
|
|
|
static void ieee80211_radio_led_deactivate(struct led_classdev *led_cdev)
|
|
{
|
|
struct ieee80211_local *local = container_of(led_cdev->trigger,
|
|
struct ieee80211_local,
|
|
radio_led);
|
|
|
|
atomic_dec(&local->radio_led_active);
|
|
}
|
|
|
|
static void ieee80211_tpt_led_activate(struct led_classdev *led_cdev)
|
|
{
|
|
struct ieee80211_local *local = container_of(led_cdev->trigger,
|
|
struct ieee80211_local,
|
|
tpt_led);
|
|
|
|
atomic_inc(&local->tpt_led_active);
|
|
}
|
|
|
|
static void ieee80211_tpt_led_deactivate(struct led_classdev *led_cdev)
|
|
{
|
|
struct ieee80211_local *local = container_of(led_cdev->trigger,
|
|
struct ieee80211_local,
|
|
tpt_led);
|
|
|
|
atomic_dec(&local->tpt_led_active);
|
|
}
|
|
|
|
void ieee80211_led_init(struct ieee80211_local *local)
|
|
{
|
|
atomic_set(&local->rx_led_active, 0);
|
|
local->rx_led.activate = ieee80211_rx_led_activate;
|
|
local->rx_led.deactivate = ieee80211_rx_led_deactivate;
|
|
if (local->rx_led.name && led_trigger_register(&local->rx_led)) {
|
|
kfree(local->rx_led.name);
|
|
local->rx_led.name = NULL;
|
|
}
|
|
|
|
atomic_set(&local->tx_led_active, 0);
|
|
local->tx_led.activate = ieee80211_tx_led_activate;
|
|
local->tx_led.deactivate = ieee80211_tx_led_deactivate;
|
|
if (local->tx_led.name && led_trigger_register(&local->tx_led)) {
|
|
kfree(local->tx_led.name);
|
|
local->tx_led.name = NULL;
|
|
}
|
|
|
|
atomic_set(&local->assoc_led_active, 0);
|
|
local->assoc_led.activate = ieee80211_assoc_led_activate;
|
|
local->assoc_led.deactivate = ieee80211_assoc_led_deactivate;
|
|
if (local->assoc_led.name && led_trigger_register(&local->assoc_led)) {
|
|
kfree(local->assoc_led.name);
|
|
local->assoc_led.name = NULL;
|
|
}
|
|
|
|
atomic_set(&local->radio_led_active, 0);
|
|
local->radio_led.activate = ieee80211_radio_led_activate;
|
|
local->radio_led.deactivate = ieee80211_radio_led_deactivate;
|
|
if (local->radio_led.name && led_trigger_register(&local->radio_led)) {
|
|
kfree(local->radio_led.name);
|
|
local->radio_led.name = NULL;
|
|
}
|
|
|
|
atomic_set(&local->tpt_led_active, 0);
|
|
if (local->tpt_led_trigger) {
|
|
local->tpt_led.activate = ieee80211_tpt_led_activate;
|
|
local->tpt_led.deactivate = ieee80211_tpt_led_deactivate;
|
|
if (led_trigger_register(&local->tpt_led)) {
|
|
kfree(local->tpt_led_trigger);
|
|
local->tpt_led_trigger = NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
void ieee80211_led_exit(struct ieee80211_local *local)
|
|
{
|
|
if (local->radio_led.name)
|
|
led_trigger_unregister(&local->radio_led);
|
|
if (local->assoc_led.name)
|
|
led_trigger_unregister(&local->assoc_led);
|
|
if (local->tx_led.name)
|
|
led_trigger_unregister(&local->tx_led);
|
|
if (local->rx_led.name)
|
|
led_trigger_unregister(&local->rx_led);
|
|
|
|
if (local->tpt_led_trigger) {
|
|
led_trigger_unregister(&local->tpt_led);
|
|
kfree(local->tpt_led_trigger);
|
|
}
|
|
}
|
|
|
|
const char *__ieee80211_get_radio_led_name(struct ieee80211_hw *hw)
|
|
{
|
|
struct ieee80211_local *local = hw_to_local(hw);
|
|
|
|
return local->radio_led.name;
|
|
}
|
|
EXPORT_SYMBOL(__ieee80211_get_radio_led_name);
|
|
|
|
const char *__ieee80211_get_assoc_led_name(struct ieee80211_hw *hw)
|
|
{
|
|
struct ieee80211_local *local = hw_to_local(hw);
|
|
|
|
return local->assoc_led.name;
|
|
}
|
|
EXPORT_SYMBOL(__ieee80211_get_assoc_led_name);
|
|
|
|
const char *__ieee80211_get_tx_led_name(struct ieee80211_hw *hw)
|
|
{
|
|
struct ieee80211_local *local = hw_to_local(hw);
|
|
|
|
return local->tx_led.name;
|
|
}
|
|
EXPORT_SYMBOL(__ieee80211_get_tx_led_name);
|
|
|
|
const char *__ieee80211_get_rx_led_name(struct ieee80211_hw *hw)
|
|
{
|
|
struct ieee80211_local *local = hw_to_local(hw);
|
|
|
|
return local->rx_led.name;
|
|
}
|
|
EXPORT_SYMBOL(__ieee80211_get_rx_led_name);
|
|
|
|
static unsigned long tpt_trig_traffic(struct ieee80211_local *local,
|
|
struct tpt_led_trigger *tpt_trig)
|
|
{
|
|
unsigned long traffic, delta;
|
|
|
|
traffic = tpt_trig->tx_bytes + tpt_trig->rx_bytes;
|
|
|
|
delta = traffic - tpt_trig->prev_traffic;
|
|
tpt_trig->prev_traffic = traffic;
|
|
return DIV_ROUND_UP(delta, 1024 / 8);
|
|
}
|
|
|
|
static void tpt_trig_timer(unsigned long data)
|
|
{
|
|
struct ieee80211_local *local = (void *)data;
|
|
struct tpt_led_trigger *tpt_trig = local->tpt_led_trigger;
|
|
struct led_classdev *led_cdev;
|
|
unsigned long on, off, tpt;
|
|
int i;
|
|
|
|
if (!tpt_trig->running)
|
|
return;
|
|
|
|
mod_timer(&tpt_trig->timer, round_jiffies(jiffies + HZ));
|
|
|
|
tpt = tpt_trig_traffic(local, tpt_trig);
|
|
|
|
/* default to just solid on */
|
|
on = 1;
|
|
off = 0;
|
|
|
|
for (i = tpt_trig->blink_table_len - 1; i >= 0; i--) {
|
|
if (tpt_trig->blink_table[i].throughput < 0 ||
|
|
tpt > tpt_trig->blink_table[i].throughput) {
|
|
off = tpt_trig->blink_table[i].blink_time / 2;
|
|
on = tpt_trig->blink_table[i].blink_time - off;
|
|
break;
|
|
}
|
|
}
|
|
|
|
read_lock(&local->tpt_led.leddev_list_lock);
|
|
list_for_each_entry(led_cdev, &local->tpt_led.led_cdevs, trig_list)
|
|
led_blink_set(led_cdev, &on, &off);
|
|
read_unlock(&local->tpt_led.leddev_list_lock);
|
|
}
|
|
|
|
const char *
|
|
__ieee80211_create_tpt_led_trigger(struct ieee80211_hw *hw,
|
|
unsigned int flags,
|
|
const struct ieee80211_tpt_blink *blink_table,
|
|
unsigned int blink_table_len)
|
|
{
|
|
struct ieee80211_local *local = hw_to_local(hw);
|
|
struct tpt_led_trigger *tpt_trig;
|
|
|
|
if (WARN_ON(local->tpt_led_trigger))
|
|
return NULL;
|
|
|
|
tpt_trig = kzalloc(sizeof(struct tpt_led_trigger), GFP_KERNEL);
|
|
if (!tpt_trig)
|
|
return NULL;
|
|
|
|
snprintf(tpt_trig->name, sizeof(tpt_trig->name),
|
|
"%stpt", wiphy_name(local->hw.wiphy));
|
|
|
|
local->tpt_led.name = tpt_trig->name;
|
|
|
|
tpt_trig->blink_table = blink_table;
|
|
tpt_trig->blink_table_len = blink_table_len;
|
|
tpt_trig->want = flags;
|
|
|
|
setup_timer(&tpt_trig->timer, tpt_trig_timer, (unsigned long)local);
|
|
|
|
local->tpt_led_trigger = tpt_trig;
|
|
|
|
return tpt_trig->name;
|
|
}
|
|
EXPORT_SYMBOL(__ieee80211_create_tpt_led_trigger);
|
|
|
|
static void ieee80211_start_tpt_led_trig(struct ieee80211_local *local)
|
|
{
|
|
struct tpt_led_trigger *tpt_trig = local->tpt_led_trigger;
|
|
|
|
if (tpt_trig->running)
|
|
return;
|
|
|
|
/* reset traffic */
|
|
tpt_trig_traffic(local, tpt_trig);
|
|
tpt_trig->running = true;
|
|
|
|
tpt_trig_timer((unsigned long)local);
|
|
mod_timer(&tpt_trig->timer, round_jiffies(jiffies + HZ));
|
|
}
|
|
|
|
static void ieee80211_stop_tpt_led_trig(struct ieee80211_local *local)
|
|
{
|
|
struct tpt_led_trigger *tpt_trig = local->tpt_led_trigger;
|
|
struct led_classdev *led_cdev;
|
|
|
|
if (!tpt_trig->running)
|
|
return;
|
|
|
|
tpt_trig->running = false;
|
|
del_timer_sync(&tpt_trig->timer);
|
|
|
|
read_lock(&local->tpt_led.leddev_list_lock);
|
|
list_for_each_entry(led_cdev, &local->tpt_led.led_cdevs, trig_list)
|
|
led_set_brightness(led_cdev, LED_OFF);
|
|
read_unlock(&local->tpt_led.leddev_list_lock);
|
|
}
|
|
|
|
void ieee80211_mod_tpt_led_trig(struct ieee80211_local *local,
|
|
unsigned int types_on, unsigned int types_off)
|
|
{
|
|
struct tpt_led_trigger *tpt_trig = local->tpt_led_trigger;
|
|
bool allowed;
|
|
|
|
WARN_ON(types_on & types_off);
|
|
|
|
if (!tpt_trig)
|
|
return;
|
|
|
|
tpt_trig->active &= ~types_off;
|
|
tpt_trig->active |= types_on;
|
|
|
|
/*
|
|
* Regardless of wanted state, we shouldn't blink when
|
|
* the radio is disabled -- this can happen due to some
|
|
* code ordering issues with __ieee80211_recalc_idle()
|
|
* being called before the radio is started.
|
|
*/
|
|
allowed = tpt_trig->active & IEEE80211_TPT_LEDTRIG_FL_RADIO;
|
|
|
|
if (!allowed || !(tpt_trig->active & tpt_trig->want))
|
|
ieee80211_stop_tpt_led_trig(local);
|
|
else
|
|
ieee80211_start_tpt_led_trig(local);
|
|
}
|