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linux/net/mac80211/led.h
Hans de Goede e298d8a38b leds: Change led_trigger_blink[_oneshot]() delay parameters to pass-by-value
led_blink_set[_oneshot]()'s delay_on and delay_off function parameters
are pass by reference, so that hw-blink implementations can report
back the actual achieved delays when the values have been rounded
to something the hw supports.

This is really only interesting for the sysfs API / the timer trigger.
Other triggers don't really care about this and none of the callers of
led_trigger_blink[_oneshot]() do anything with the returned delay values.

Change the led_trigger_blink[_oneshot]() delay parameters to pass-by-value,
there are 2 reasons for this:

1. led_cdev->blink_set() may sleep, while led_trigger_blink() may not.
So on hw where led_cdev->blink_set() sleeps the call needs to be deferred
to a workqueue, in which case the actual achieved delays are unknown
(this is a preparation patch for the deferring).

2. Since the callers don't care about the actual achieved delays, allowing
callers to directly pass a value leads to simpler code for most callers.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Tested-by: Yauhen Kharuzhy <jekhor@gmail.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Acked-by: Florian Westphal <fw@strlen.de>
Link: https://lore.kernel.org/r/20230510162234.291439-2-hdegoede@redhat.com
Signed-off-by: Lee Jones <lee@kernel.org>
2023-05-25 12:16:27 +01:00

87 lines
2.3 KiB
C

/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright 2006, Johannes Berg <johannes@sipsolutions.net>
*/
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/leds.h>
#include "ieee80211_i.h"
#define MAC80211_BLINK_DELAY 50 /* ms */
static inline void ieee80211_led_rx(struct ieee80211_local *local)
{
#ifdef CONFIG_MAC80211_LEDS
if (!atomic_read(&local->rx_led_active))
return;
led_trigger_blink_oneshot(&local->rx_led, MAC80211_BLINK_DELAY, MAC80211_BLINK_DELAY, 0);
#endif
}
static inline void ieee80211_led_tx(struct ieee80211_local *local)
{
#ifdef CONFIG_MAC80211_LEDS
if (!atomic_read(&local->tx_led_active))
return;
led_trigger_blink_oneshot(&local->tx_led, MAC80211_BLINK_DELAY, MAC80211_BLINK_DELAY, 0);
#endif
}
#ifdef CONFIG_MAC80211_LEDS
void ieee80211_led_assoc(struct ieee80211_local *local,
bool associated);
void ieee80211_led_radio(struct ieee80211_local *local,
bool enabled);
void ieee80211_alloc_led_names(struct ieee80211_local *local);
void ieee80211_free_led_names(struct ieee80211_local *local);
void ieee80211_led_init(struct ieee80211_local *local);
void ieee80211_led_exit(struct ieee80211_local *local);
void ieee80211_mod_tpt_led_trig(struct ieee80211_local *local,
unsigned int types_on, unsigned int types_off);
#else
static inline void ieee80211_led_assoc(struct ieee80211_local *local,
bool associated)
{
}
static inline void ieee80211_led_radio(struct ieee80211_local *local,
bool enabled)
{
}
static inline void ieee80211_alloc_led_names(struct ieee80211_local *local)
{
}
static inline void ieee80211_free_led_names(struct ieee80211_local *local)
{
}
static inline void ieee80211_led_init(struct ieee80211_local *local)
{
}
static inline void ieee80211_led_exit(struct ieee80211_local *local)
{
}
static inline void ieee80211_mod_tpt_led_trig(struct ieee80211_local *local,
unsigned int types_on,
unsigned int types_off)
{
}
#endif
static inline void
ieee80211_tpt_led_trig_tx(struct ieee80211_local *local, int bytes)
{
#ifdef CONFIG_MAC80211_LEDS
if (atomic_read(&local->tpt_led_active))
local->tpt_led_trigger->tx_bytes += bytes;
#endif
}
static inline void
ieee80211_tpt_led_trig_rx(struct ieee80211_local *local, int bytes)
{
#ifdef CONFIG_MAC80211_LEDS
if (atomic_read(&local->tpt_led_active))
local->tpt_led_trigger->rx_bytes += bytes;
#endif
}