[PATCH 5/9] can: c_can: add LED trigger support
From: Fabio Baltieri <hidden>
Date: 2012-12-16 11:09:58
Also in:
lkml
Subsystem:
can network drivers, the rest · Maintainers:
Marc Kleine-Budde, Vincent Mailhol, Linus Torvalds
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 <redacted> Cc: AnilKumar Ch <redacted> Cc: Wolfgang Grandegger <redacted> Cc: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Fabio Baltieri <redacted> --- 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