[PATCH can-next v5 2/2] can: flexcan: add LED trigger support
From: Fabio Baltieri <hidden>
Date: 2012-08-01 11:48:20
Also in:
lkml
Subsystem:
can network drivers, the rest · Maintainers:
Marc Kleine-Budde, Vincent Mailhol, Linus Torvalds
Add support for canbus activity led indicators on flexcan devices by calling appropriate can_led_* functions. These are only enabled when CONFIG_CAN_LEDS is Y, becomes no-op otherwise. Cc: Oliver Hartkopp <socketcan@hartkopp.net> Cc: Wolfgang Grandegger <redacted> Cc: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Fabio Baltieri <redacted> --- drivers/net/can/flexcan.c | 11 +++++++++++ 1 file changed, 11 insertions(+)
diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
index c5f1431..6467fc1 100644
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c@@ -23,6 +23,7 @@ #include <linux/can.h> #include <linux/can/dev.h> #include <linux/can/error.h> +#include <linux/can/led.h> #include <linux/can/platform/flexcan.h> #include <linux/clk.h> #include <linux/delay.h>
@@ -547,6 +548,8 @@ static int flexcan_read_frame(struct net_device *dev) stats->rx_packets++; stats->rx_bytes += cf->can_dlc; + can_led_event(dev, CAN_LED_EVENT_RX); + return 1; }
@@ -635,6 +638,7 @@ static irqreturn_t flexcan_irq(int irq, void *dev_id) if (reg_iflag1 & (1 << FLEXCAN_TX_BUF_ID)) { stats->tx_bytes += can_get_echo_skb(dev, 0); stats->tx_packets++; + can_led_event(dev, CAN_LED_EVENT_TX); flexcan_write((1 << FLEXCAN_TX_BUF_ID), ®s->iflag1); netif_wake_queue(dev); }
@@ -844,6 +848,9 @@ static int flexcan_open(struct net_device *dev) err = flexcan_chip_start(dev); if (err) goto out_close; + + can_led_event(dev, CAN_LED_EVENT_OPEN); + napi_enable(&priv->napi); netif_start_queue(dev);
@@ -872,6 +879,8 @@ static int flexcan_close(struct net_device *dev) close_candev(dev); + can_led_event(dev, CAN_LED_EVENT_STOP); + return 0; }
@@ -1068,6 +1077,8 @@ static int __devinit flexcan_probe(struct platform_device *pdev) goto failed_register; } + devm_can_led_init(dev); + dev_info(&pdev->dev, "device registered (reg_base=%p, irq=%d)\n", priv->base, dev->irq);
--
1.7.11.rc1.9.gf623ca1.dirty