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mac80211: use oneshot blink API for LED triggers 

Change mac80211 LED trigger code to use the generic
led_trigger_blink_oneshot() API for transmit and receive activity
indication.

This gives a better feedback to the user, as with the new API each
activity event results in a visible blink, while a constant traffic
results in a continuous blink at constant rate.

Signed-off-by: Fabio Baltieri <fabio.baltieri@gmail.com>
[fix LED disabled build error]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Fabio Baltieri 2013-07-25 12:00:26 +02:00 committed by Johannes Berg
parent c82b5a74cc
commit e47f2509e5
5 changed files with 10 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
net/mac80211/ieee80211_i.h
View File

@ -1094,7 +1094,6 @@ struct ieee80211_local {
u32 dot11TransmittedFrameCount;
#ifdef CONFIG_MAC80211_LEDS
int tx_led_counter, rx_led_counter;
struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
struct tpt_led_trigger *tpt_led_trigger;
char tx_led_name[32], rx_led_name[32],

19
net/mac80211/led.c
View File

@ -12,27 +12,22 @@
#include <linux/export.h>
#include "led.h"
#define MAC80211_BLINK_DELAY 50 /* ms */
void ieee80211_led_rx(struct ieee80211_local *local)
{
unsigned long led_delay = MAC80211_BLINK_DELAY;
if (unlikely(!local->rx_led))
return;
if (local->rx_led_counter++ % 2 == 0)
led_trigger_event(local->rx_led, LED_OFF);
else
led_trigger_event(local->rx_led, LED_FULL);
led_trigger_blink_oneshot(local->rx_led, &led_delay, &led_delay, 0);
}
/* q is 1 if a packet was enqueued, 0 if it has been transmitted */
void ieee80211_led_tx(struct ieee80211_local *local, int q)
void ieee80211_led_tx(struct ieee80211_local *local)
{
unsigned long led_delay = MAC80211_BLINK_DELAY;
if (unlikely(!local->tx_led))
return;
/* not sure how this is supposed to work ... */
local->tx_led_counter += 2*q-1;
if (local->tx_led_counter % 2 == 0)
led_trigger_event(local->tx_led, LED_OFF);
else
led_trigger_event(local->tx_led, LED_FULL);
led_trigger_blink_oneshot(local->tx_led, &led_delay, &led_delay, 0);
}
void ieee80211_led_assoc(struct ieee80211_local *local, bool associated)

4
net/mac80211/led.h
View File

@ -13,7 +13,7 @@
#ifdef CONFIG_MAC80211_LEDS
void ieee80211_led_rx(struct ieee80211_local *local);
void ieee80211_led_tx(struct ieee80211_local *local, int q);
void ieee80211_led_tx(struct ieee80211_local *local);
void ieee80211_led_assoc(struct ieee80211_local *local,
bool associated);
void ieee80211_led_radio(struct ieee80211_local *local,
@ -27,7 +27,7 @@ void ieee80211_mod_tpt_led_trig(struct ieee80211_local *local,
static inline void ieee80211_led_rx(struct ieee80211_local *local)
{
}
static inline void ieee80211_led_tx(struct ieee80211_local *local, int q)
static inline void ieee80211_led_tx(struct ieee80211_local *local)
{
}
static inline void ieee80211_led_assoc(struct ieee80211_local *local,

2
net/mac80211/status.c
View File

@ -564,7 +564,7 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
rcu_read_unlock();
ieee80211_led_tx(local, 0);
ieee80211_led_tx(local);
/* SNMP counters
* Fragments are passed to low-level drivers as separate skbs, so these

1
net/mac80211/tx.c
View File

@ -1300,7 +1300,6 @@ static bool __ieee80211_tx(struct ieee80211_local *local,
txpending);
ieee80211_tpt_led_trig_tx(local, fc, led_len);
ieee80211_led_tx(local, 1);
WARN_ON_ONCE(!skb_queue_empty(skbs));