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| author | Fabio Baltieri <fabio.baltieri@gmail.com> | 2012-12-18 18:51:03 +0100 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2013-01-26 16:59:00 +0100 |
| commit | a04282f54b52cf5a629a98f09712da1e630a1060 (patch) | |
| tree | a907bb7a8adc7614f2a12792673e7014ccf6c785 | |
| parent | eb072a9baebefeef33ece48c0a6fc2f8200e5ed2 (diff) | |
| download | linux-a04282f54b52cf5a629a98f09712da1e630a1060.tar.gz linux-a04282f54b52cf5a629a98f09712da1e630a1060.tar.bz2 linux-a04282f54b52cf5a629a98f09712da1e630a1060.zip | |
can: sja1000: add LED trigger support
Add support for canbus activity led indicators on sja1000 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/sja1000/sja1000.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/drivers/net/can/sja1000/sja1000.c b/drivers/net/can/sja1000/sja1000.c index 83ee11eca0e2..daf4013a8fc7 100644 --- a/drivers/net/can/sja1000/sja1000.c +++ b/drivers/net/can/sja1000/sja1000.c @@ -60,6 +60,7 @@ #include <linux/can/dev.h> #include <linux/can/error.h> +#include <linux/can/led.h> #include "sja1000.h" @@ -368,6 +369,8 @@ static void sja1000_rx(struct net_device *dev) stats->rx_packets++; stats->rx_bytes += cf->can_dlc; + + can_led_event(dev, CAN_LED_EVENT_RX); } static int sja1000_err(struct net_device *dev, uint8_t isrc, uint8_t status) @@ -521,6 +524,7 @@ irqreturn_t sja1000_interrupt(int irq, void *dev_id) can_get_echo_skb(dev, 0); } netif_wake_queue(dev); + can_led_event(dev, CAN_LED_EVENT_TX); } if (isrc & IRQ_RI) { /* receive interrupt */ @@ -575,6 +579,8 @@ static int sja1000_open(struct net_device *dev) /* init and start chi */ sja1000_start(dev); + can_led_event(dev, CAN_LED_EVENT_OPEN); + netif_start_queue(dev); return 0; @@ -592,6 +598,8 @@ static int sja1000_close(struct net_device *dev) close_candev(dev); + can_led_event(dev, CAN_LED_EVENT_STOP); + return 0; } @@ -639,6 +647,8 @@ static const struct net_device_ops sja1000_netdev_ops = { int register_sja1000dev(struct net_device *dev) { + int ret; + if (!sja1000_probe_chip(dev)) return -ENODEV; @@ -648,7 +658,12 @@ int register_sja1000dev(struct net_device *dev) set_reset_mode(dev); chipset_init(dev); - return register_candev(dev); + ret = register_candev(dev); + + if (!ret) + devm_can_led_init(dev); + + return ret; } EXPORT_SYMBOL_GPL(register_sja1000dev); |