From 5090f805600ff7dccca358f9986a92dd34185326 Mon Sep 17 00:00:00 2001 From: Fabio Baltieri Date: Tue, 18 Dec 2012 18:51:01 +0100 Subject: [PATCH] can: c_can: add LED trigger support 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 Cc: AnilKumar Ch Cc: Wolfgang Grandegger Cc: Marc Kleine-Budde Signed-off-by: Fabio Baltieri Signed-off-by: Marc Kleine-Budde --- 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 5233b8f58d77..57eb1e77865d 100644 --- a/drivers/net/can/c_can/c_can.c +++ b/drivers/net/can/c_can/c_can.c @@ -39,6 +39,7 @@ #include #include #include +#include #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; } -- 2.20.1