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| author | Fabio Baltieri <fabio.baltieri@gmail.com> | 2012-12-18 18:50:58 +0100 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2013-01-26 16:58:59 +0100 |
| commit | adccadb92f0571fd0f9b2ac8011057a7de9e3e63 (patch) | |
| tree | cdb1b0cf16b3a2b5e5b7440091bb394e72099e81 | |
| parent | a1ef7bd9fce8aba8e4701e60208148fb3bc9bdd4 (diff) | |
| download | linux-adccadb92f0571fd0f9b2ac8011057a7de9e3e63.tar.gz linux-adccadb92f0571fd0f9b2ac8011057a7de9e3e63.tar.bz2 linux-adccadb92f0571fd0f9b2ac8011057a7de9e3e63.zip | |
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 <socketcan@hartkopp.net>
Cc: Wolfgang Grandegger <wg@grandegger.com>
Cc: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Fabio Baltieri <fabio.baltieri@gmail.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
| -rw-r--r-- | drivers/net/can/flexcan.c | 11 |
1 files changed, 11 insertions, 0 deletions
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 <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> @@ -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); |