linux-kernel - [PATCH can-next 1/5] can: at91

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1344178310-2898-1-git-send-email-fabio.baltieri@gmail.com>
Date:	Sun,  5 Aug 2012 16:51:46 +0200
From:	Fabio Baltieri <fabio.baltieri@...il.com>
To:	linux-can@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org,
	Fabio Baltieri <fabio.baltieri@...il.com>,
	Wolfgang Grandegger <wg@...ndegger.com>,
	Marc Kleine-Budde <mkl@...gutronix.de>
Subject: [PATCH can-next 1/5] can: at91_can: add LED trigger support

Add support for canbus activity led indicators on at91_can devices by
calling appropriate can_led functions.

These are only enabled when CONFIG_CAN_LEDS is Y, becomes no-op
otherwise.

Cc: Wolfgang Grandegger <wg@...ndegger.com>
Cc: Marc Kleine-Budde <mkl@...gutronix.de>
Signed-off-by: Fabio Baltieri <fabio.baltieri@...il.com>
---
 drivers/net/can/at91_can.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/net/can/at91_can.c b/drivers/net/can/at91_can.c
index fcff73a..b496bff 100644
--- a/drivers/net/can/at91_can.c
+++ b/drivers/net/can/at91_can.c
@@ -36,6 +36,7 @@
 
 #include <linux/can/dev.h>
 #include <linux/can/error.h>
+#include <linux/can/led.h>
 
 #include <mach/board.h>
 
@@ -642,6 +643,8 @@ static void at91_read_msg(struct net_device *dev, unsigned int mb)
 
 	stats->rx_packets++;
 	stats->rx_bytes += cf->can_dlc;
+
+	can_led_event(dev, CAN_LED_EVENT_RX);
 }
 
 /**
@@ -876,6 +879,7 @@ static void at91_irq_tx(struct net_device *dev, u32 reg_sr)
 			/* _NOTE_: subtract AT91_MB_TX_FIRST offset from mb! */
 			can_get_echo_skb(dev, mb - get_mb_tx_first(priv));
 			dev->stats.tx_packets++;
+			can_led_event(dev, CAN_LED_EVENT_TX);
 		}
 	}
 
@@ -1129,6 +1133,8 @@ static int at91_open(struct net_device *dev)
 		goto out_close;
 	}
 
+	can_led_event(dev, CAN_LED_EVENT_OPEN);
+
 	/* start chip and queuing */
 	at91_chip_start(dev);
 	napi_enable(&priv->napi);
@@ -1160,6 +1166,8 @@ static int at91_close(struct net_device *dev)
 
 	close_candev(dev);
 
+	can_led_event(dev, CAN_LED_EVENT_STOP);
+
 	return 0;
 }
 
@@ -1322,6 +1330,8 @@ static int __devinit at91_can_probe(struct platform_device *pdev)
 		goto exit_free;
 	}
 
+	devm_can_led_init(dev);
+
 	dev_info(&pdev->dev, "device registered (reg_base=%p, irq=%d)\n",
 		 priv->reg_base, dev->irq);
 
-- 
1.7.11.rc1.9.gf623ca1.dirty

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/