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can: usb_8dev: add LED trigger support

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Add support for canbus activity led indicators on usb_8dev devices by
calling appropriate can_led functions.

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

Signed-off-by: Bernd Krumboeck <krumboeck@universalnet.at>
Signed-off-by: Fabio Baltieri <fabio.baltieri@gmail.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This commit is contained in:
Bernd Krumboeck 2012-12-18 18:51:04 +01:00 committed by Marc Kleine-Budde
parent a04282f54b
commit e2d5f2c7d6
1 changed files with 11 additions and 0 deletions
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11
drivers/net/can/usb/usb_8dev.c
View file

@ -33,6 +33,7 @@
#include <linux/can.h>
#include <linux/can/dev.h>
#include <linux/can/error.h>
#include <linux/can/led.h>
/* driver constants */
#define MAX_RX_URBS 20
@ -497,6 +498,8 @@ static void usb_8dev_rx_can_msg(struct usb_8dev_priv *priv,
stats->rx_packets++;
stats->rx_bytes += cf->can_dlc;
can_led_event(priv->netdev, CAN_LED_EVENT_RX);
} else {
netdev_warn(priv->netdev, "frame type %d unknown",
msg->type);
@ -597,6 +600,8 @@ static void usb_8dev_write_bulk_callback(struct urb *urb)
can_get_echo_skb(netdev, context->echo_index);
can_led_event(netdev, CAN_LED_EVENT_TX);
/* Release context */
context->echo_index = MAX_TX_URBS;
@ -819,6 +824,8 @@ static int usb_8dev_open(struct net_device *netdev)
if (err)
return err;
can_led_event(netdev, CAN_LED_EVENT_OPEN);
/* finally start device */
err = usb_8dev_start(priv);
if (err) {
@ -871,6 +878,8 @@ static int usb_8dev_close(struct net_device *netdev)
close_candev(netdev);
can_led_event(netdev, CAN_LED_EVENT_STOP);
return err;
}
@ -978,6 +987,8 @@ static int usb_8dev_probe(struct usb_interface *intf,
(version>>8) & 0xff, version & 0xff);
}
devm_can_led_init(netdev);
return 0;
cleanup_cmd_msg_buffer: