diff options
| author | Fabio Baltieri <fabio.baltieri@gmail.com> | 2012-12-18 21:51:01 +0400 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2013-01-26 19:59:00 +0400 |
| commit | 5090f805600ff7dccca358f9986a92dd34185326 (patch) | |
| tree | 357ba36b7b0c9db1cd67f5d278b5cc7656ff44ca /drivers | |
| parent | d7ff5aae6ce3670afc1e000c08ea238712d70fae (diff) | |
| download | linux-5090f805600ff7dccca358f9986a92dd34185326.tar.xz | |
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 <bhupesh.sharma@st.com>
Cc: AnilKumar Ch <anilkumar@ti.com>
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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/can/c_can/c_can.c | 10 |
1 files changed, 10 insertions, 0 deletions
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 <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; } |