From: yegorslists@googlemail.com
To: linux-can@vger.kernel.org
Cc: mkl@pengutronix.de, socketcan@hartkopp.net,
fabio.baltieri@gmail.com,
Yegor Yefremov <yegorslists@googlemail.com>
Subject: [PATCH v3] can: add combined rx/tx LED trigger support
Date: Mon, 16 Mar 2015 09:38:13 +0100 [thread overview]
Message-ID: <1426495093-25272-1-git-send-email-yegorslists@googlemail.com> (raw)
From: Yegor Yefremov <yegorslists@googlemail.com>
Add <ifname>-rxtx trigger, that will be activated both for tx
as rx events. This trigger mimics "activity" LED for Ethernet
devices.
Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
---
Changes:
v3: add missing calls like release for rxtx-trigger
v2: rework comment for CAN_LED_NAME_SZ (Marc Kleine-Budde)
drivers/net/can/led.c | 22 +++++++++++++++++++---
include/linux/can/dev.h | 2 ++
include/linux/can/led.h | 6 ++++--
3 files changed, 25 insertions(+), 5 deletions(-)
diff --git a/drivers/net/can/led.c b/drivers/net/can/led.c
index ab7f1b0..c1b6676 100644
--- a/drivers/net/can/led.c
+++ b/drivers/net/can/led.c
@@ -30,20 +30,28 @@ void can_led_event(struct net_device *netdev, enum can_led_event event)
case CAN_LED_EVENT_OPEN:
led_trigger_event(priv->tx_led_trig, LED_FULL);
led_trigger_event(priv->rx_led_trig, LED_FULL);
+ led_trigger_event(priv->rxtx_led_trig, LED_FULL);
break;
case CAN_LED_EVENT_STOP:
led_trigger_event(priv->tx_led_trig, LED_OFF);
led_trigger_event(priv->rx_led_trig, LED_OFF);
+ led_trigger_event(priv->rxtx_led_trig, LED_OFF);
break;
case CAN_LED_EVENT_TX:
- if (led_delay)
+ if (led_delay) {
led_trigger_blink_oneshot(priv->tx_led_trig,
&led_delay, &led_delay, 1);
+ led_trigger_blink_oneshot(priv->rxtx_led_trig,
+ &led_delay, &led_delay, 1);
+ }
break;
case CAN_LED_EVENT_RX:
- if (led_delay)
+ if (led_delay) {
led_trigger_blink_oneshot(priv->rx_led_trig,
&led_delay, &led_delay, 1);
+ led_trigger_blink_oneshot(priv->rxtx_led_trig,
+ &led_delay, &led_delay, 1);
+ }
break;
}
}
@@ -55,6 +63,7 @@ static void can_led_release(struct device *gendev, void *res)
led_trigger_unregister_simple(priv->tx_led_trig);
led_trigger_unregister_simple(priv->rx_led_trig);
+ led_trigger_unregister_simple(priv->rxtx_led_trig);
}
/* Register CAN LED triggers for a CAN device
@@ -76,11 +85,15 @@ void devm_can_led_init(struct net_device *netdev)
"%s-tx", netdev->name);
snprintf(priv->rx_led_trig_name, sizeof(priv->rx_led_trig_name),
"%s-rx", netdev->name);
+ snprintf(priv->rxtx_led_trig_name, sizeof(priv->rxtx_led_trig_name),
+ "%s-rxtx", netdev->name);
led_trigger_register_simple(priv->tx_led_trig_name,
&priv->tx_led_trig);
led_trigger_register_simple(priv->rx_led_trig_name,
&priv->rx_led_trig);
+ led_trigger_register_simple(priv->rxtx_led_trig_name,
+ &priv->rxtx_led_trig);
devres_add(&netdev->dev, res);
}
@@ -97,7 +110,7 @@ static int can_led_notifier(struct notifier_block *nb, unsigned long msg,
if (!priv)
return NOTIFY_DONE;
- if (!priv->tx_led_trig || !priv->rx_led_trig)
+ if (!priv->tx_led_trig || !priv->rx_led_trig || !priv->rxtx_led_trig)
return NOTIFY_DONE;
if (msg == NETDEV_CHANGENAME) {
@@ -106,6 +119,9 @@ static int can_led_notifier(struct notifier_block *nb, unsigned long msg,
snprintf(name, sizeof(name), "%s-rx", netdev->name);
led_trigger_rename_static(name, priv->rx_led_trig);
+
+ snprintf(name, sizeof(name), "%s-rxtx", netdev->name);
+ led_trigger_rename_static(name, priv->rxtx_led_trig);
}
return NOTIFY_DONE;
diff --git a/include/linux/can/dev.h b/include/linux/can/dev.h
index c05ff0f..c3a9c8f 100644
--- a/include/linux/can/dev.h
+++ b/include/linux/can/dev.h
@@ -61,6 +61,8 @@ struct can_priv {
char tx_led_trig_name[CAN_LED_NAME_SZ];
struct led_trigger *rx_led_trig;
char rx_led_trig_name[CAN_LED_NAME_SZ];
+ struct led_trigger *rxtx_led_trig;
+ char rxtx_led_trig_name[CAN_LED_NAME_SZ];
#endif
};
diff --git a/include/linux/can/led.h b/include/linux/can/led.h
index e0475c5..146de45 100644
--- a/include/linux/can/led.h
+++ b/include/linux/can/led.h
@@ -21,8 +21,10 @@ enum can_led_event {
#ifdef CONFIG_CAN_LEDS
-/* keep space for interface name + "-tx"/"-rx" suffix and null terminator */
-#define CAN_LED_NAME_SZ (IFNAMSIZ + 4)
+/* keep space for interface name + "-tx"/"-rx"/"-rxtx"
+ * suffix and null terminator
+ */
+#define CAN_LED_NAME_SZ (IFNAMSIZ + 6)
void can_led_event(struct net_device *netdev, enum can_led_event event);
void devm_can_led_init(struct net_device *netdev);
--
1.7.7
next reply other threads:[~2015-03-16 8:38 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-16 8:38 yegorslists [this message]
2015-03-16 8:49 ` [PATCH v3] can: add combined rx/tx LED trigger support Marc Kleine-Budde
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