Add support for canbus activity led indicators on c_can devices by
calling appropriate can_led functions.
These are only enabled when CONFIG_CAN_LEDS is Y, becomes no-op
otherwise.
Cc: Bhupesh Sharma <bhupesh.sha...@st.com>
Cc: AnilKumar Ch <anilku...@ti.com>
Cc: Wolfgang Grandegger <w...@grandegger.com>
Cc: Marc Kleine-Budde <m...@pengutronix.de>
Signed-off-by: Fabio Baltieri <fabio.balti...@gmail.com>
---
drivers/net/can/c_can/c_can.c | 17 ++++++++++++++++-
1 file changed, 16 insertions(+), 1 deletion(-)
diff --git a/drivers/net/can/c_can/c_can.c b/drivers/net/can/c_can/c_can.c
index 4c538e3..a8c5807 100644
--- a/drivers/net/can/c_can/c_can.c
+++ b/drivers/net/can/c_can/c_can.c
@@ -38,6 +38,7 @@
#include <linux/can.h>
#include <linux/can/dev.h>
#include <linux/can/error.h>
+#include <linux/can/led.h>
#include "c_can.h"
@@ -439,6 +440,8 @@ static int c_can_read_msg_object(struct net_device *dev,
int iface, int ctrl)
stats->rx_packets++;
stats->rx_bytes += frame->can_dlc;
+ can_led_event(dev, CAN_LED_EVENT_RX);
+
return 0;
}
@@ -709,6 +712,7 @@ static void c_can_do_tx(struct net_device *dev)
C_CAN_IFACE(MSGCTRL_REG, 0))
& IF_MCONT_DLC_MASK;
stats->tx_packets++;
+ can_led_event(dev, CAN_LED_EVENT_TX);
c_can_inval_msg_object(dev, 0, msg_obj_no);
} else {
break;
@@ -1070,6 +1074,8 @@ static int c_can_open(struct net_device *dev)
napi_enable(&priv->napi);
+ can_led_event(dev, CAN_LED_EVENT_OPEN);
+
/* start the c_can controller */
c_can_start(dev);
@@ -1092,6 +1098,8 @@ static int c_can_close(struct net_device *dev)
free_irq(dev->irq, dev);
close_candev(dev);
+ can_led_event(dev, CAN_LED_EVENT_STOP);
+
return 0;
}
@@ -1133,10 +1141,17 @@ static const struct net_device_ops c_can_netdev_ops = {
int register_c_can_dev(struct net_device *dev)
{
+ int ret;
+
dev->flags |= IFF_ECHO; /* we support local echo */
dev->netdev_ops = &c_can_netdev_ops;
- return register_candev(dev);
+ ret = register_candev(dev);
+
+ if (!ret)
+ devm_can_led_init(dev);
+
+ return ret;
}
EXPORT_SYMBOL_GPL(register_c_can_dev);
--
1.7.11.rc1.9.gf623ca1.dirty
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
