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 | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/net/can/c_can/c_can.c b/drivers/net/can/c_can/c_can.c
index 5233b8f..57eb1e7 100644
--- a/drivers/net/can/c_can/c_can.c
+++ b/drivers/net/can/c_can/c_can.c
@@ -39,6 +39,7 @@
#include <linux/can.h>
#include <linux/can/dev.h>
#include <linux/can/error.h>
+#include <linux/can/led.h>
#include "c_can.h"
@@ -477,6 +478,8 @@ 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;
}
@@ -751,6 +754,7 @@ 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;
@@ -1115,6 +1119,8 @@ 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);
@@ -1143,6 +1149,8 @@ static int c_can_close(struct net_device *dev)
c_can_reset_ram(priv, false);
c_can_pm_runtime_put_sync(priv);
+ can_led_event(dev, CAN_LED_EVENT_STOP);
+
return 0;
}
@@ -1268,6 +1276,8 @@ int register_c_can_dev(struct net_device *dev)
err = register_candev(dev);
if (err)
c_can_pm_runtime_disable(priv);
+ else
+ devm_can_led_init(dev);
return err;
}
--
1.7.12.1
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