3 files changed, 38 insertions, 5 deletions

diff --git a/include/linux/can/dev.h b/include/linux/can/dev.h
index 3db7767d2a1..6e5a7f00223 100644
--- a/include/linux/can/dev.h
+++ b/include/linux/can/dev.h
@@ -38,6 +38,7 @@ struct can_priv {
 
 	enum can_state state;
 	u32 ctrlmode;
+	u32 ctrlmode_supported;
 
 	int restart_ms;
 	struct timer_list restart_timer;
@@ -46,6 +47,8 @@ struct can_priv {
 	int (*do_set_mode)(struct net_device *dev, enum can_mode mode);
 	int (*do_get_state)(const struct net_device *dev,
 			    enum can_state *state);
+	int (*do_get_berr_counter)(const struct net_device *dev,
+				   struct can_berr_counter *bec);
 
 	unsigned int echo_skb_max;
 	struct sk_buff **echo_skb;
@@ -60,6 +63,21 @@ struct can_priv {
  */
 #define get_can_dlc(i)	(min_t(__u8, (i), 8))
 
+/* Drop a given socketbuffer if it does not contain a valid CAN frame. */
+static inline int can_dropped_invalid_skb(struct net_device *dev,
+					  struct sk_buff *skb)
+{
+	const struct can_frame *cf = (struct can_frame *)skb->data;
+
+	if (unlikely(skb->len != sizeof(*cf) || cf->can_dlc > 8)) {
+		kfree_skb(skb);
+		dev->stats.tx_dropped++;
+		return 1;
+	}
+
+	return 0;
+}
+
 struct net_device *alloc_candev(int sizeof_priv, unsigned int echo_skb_max);
 void free_candev(struct net_device *dev);
 
diff --git a/include/linux/can/netlink.h b/include/linux/can/netlink.h
index 9ecbb7871c0..3250de935e1 100644
--- a/include/linux/can/netlink.h
+++ b/include/linux/can/netlink.h
@@ -70,6 +70,14 @@ enum can_state {
 };
 
 /*
+ * CAN bus error counters
+ */
+struct can_berr_counter {
+	__u16 txerr;
+	__u16 rxerr;
+};
+
+/*
  * CAN controller mode
  */
 struct can_ctrlmode {
@@ -77,9 +85,11 @@ struct can_ctrlmode {
 	__u32 flags;
 };
 
-#define CAN_CTRLMODE_LOOPBACK	0x1	/* Loopback mode */
-#define CAN_CTRLMODE_LISTENONLY	0x2 	/* Listen-only mode */
-#define CAN_CTRLMODE_3_SAMPLES	0x4	/* Triple sampling mode */
+#define CAN_CTRLMODE_LOOPBACK		0x01	/* Loopback mode */
+#define CAN_CTRLMODE_LISTENONLY		0x02 	/* Listen-only mode */
+#define CAN_CTRLMODE_3_SAMPLES		0x04	/* Triple sampling mode */
+#define CAN_CTRLMODE_ONE_SHOT		0x08	/* One-Shot mode */
+#define CAN_CTRLMODE_BERR_REPORTING	0x10	/* Bus-error reporting */
 
 /*
  * CAN device statistics
@@ -105,6 +115,7 @@ enum {
 	IFLA_CAN_CTRLMODE,
 	IFLA_CAN_RESTART_MS,
 	IFLA_CAN_RESTART,
+	IFLA_CAN_BERR_COUNTER,
 	__IFLA_CAN_MAX
 };
 
diff --git a/include/linux/can/platform/ti_hecc.h b/include/linux/can/platform/ti_hecc.h
index 4688c7bb1bd..af17cb3f7a8 100644
--- a/include/linux/can/platform/ti_hecc.h
+++ b/include/linux/can/platform/ti_hecc.h
@@ -1,3 +1,6 @@
+#ifndef __CAN_PLATFORM_TI_HECC_H__
+#define __CAN_PLATFORM_TI_HECC_H__
+
 /*
  * TI HECC (High End CAN Controller) driver platform header
  *
@@ -23,6 +26,7 @@
  * @mbx_offset:		Mailbox RAM offset
  * @int_line:		Interrupt line to use - 0 or 1
  * @version:		version for future use
+ * @transceiver_switch:	platform specific callback fn for transceiver control
  *
  * Platform data structure to get all platform specific settings.
  * this structure also accounts the fact that the IP may have different
@@ -35,6 +39,6 @@ struct ti_hecc_platform_data {
 	u32 mbx_offset;
 	u32 int_line;
 	u32 version;
+	void (*transceiver_switch) (int);
 };
-
-
+#endif