From adccadb92f0571fd0f9b2ac8011057a7de9e3e63 Mon Sep 17 00:00:00 2001 From: Fabio Baltieri Date: Tue, 18 Dec 2012 18:50:58 +0100 Subject: can: flexcan: add LED trigger support 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 Cc: Wolfgang Grandegger Cc: Marc Kleine-Budde Signed-off-by: Fabio Baltieri Signed-off-by: Marc Kleine-Budde --- drivers/net/can/flexcan.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'drivers/net/can/flexcan.c') diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c index 0289a6d86f66..769d29ed106d 100644 --- a/drivers/net/can/flexcan.c +++ b/drivers/net/can/flexcan.c @@ -23,6 +23,7 @@ #include #include #include +#include #include #include #include @@ -564,6 +565,8 @@ 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; } @@ -652,6 +655,7 @@ 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); } @@ -865,6 +869,9 @@ 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); @@ -893,6 +900,8 @@ static int flexcan_close(struct net_device *dev) close_candev(dev); + can_led_event(dev, CAN_LED_EVENT_STOP); + return 0; } @@ -1092,6 +1101,8 @@ static int 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); -- cgit v1.2.3-59-g8ed1b