6 files changed, 62 insertions, 8 deletions

diff --git a/include/linux/can/dev.h b/include/linux/can/dev.h
index 3db7767d2a17..cc0bb4961669 100644
--- a/include/linux/can/dev.h
+++ b/include/linux/can/dev.h
@@ -14,6 +14,7 @@
 #ifndef CAN_DEV_H
 #define CAN_DEV_H
 
+#include <linux/can.h>
 #include <linux/can/netlink.h>
 #include <linux/can/error.h>
 
@@ -38,6 +39,7 @@ struct can_priv {
 
         enum can_state state;
         u32 ctrlmode;
+        u32 ctrlmode_supported;
 
         int restart_ms;
         struct timer_list restart_timer;
@@ -46,6 +48,8 @@ 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 +64,21 @@ 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 9ecbb7871c0e..3250de935e1a 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/flexcan.h b/include/linux/can/platform/flexcan.h
new file mode 100644
index 000000000000..72b713ab57e9
--- /dev/null
+++ b/include/linux/can/platform/flexcan.h
@@ -0,0 +1,20 @@
+/*
+ * Copyright (C) 2010 Marc Kleine-Budde <kernel@pengutronix.de>
+ *
+ * This file is released under the GPLv2
+ *
+ */
+
+#ifndef __CAN_PLATFORM_FLEXCAN_H
+#define __CAN_PLATFORM_FLEXCAN_H
+
+/**
+ * struct flexcan_platform_data - flex CAN controller platform data
+ * @transceiver_enable:         - called to power on/off the transceiver
+ *
+ */
+struct flexcan_platform_data {
+        void (*transceiver_switch)(int enable);
+};
+
+#endif /* __CAN_PLATFORM_FLEXCAN_H */
diff --git a/include/linux/can/platform/mcp251x.h b/include/linux/can/platform/mcp251x.h
index 1448177d86d5..dba28268e651 100644
--- a/include/linux/can/platform/mcp251x.h
+++ b/include/linux/can/platform/mcp251x.h
@@ -26,8 +26,8 @@
 struct mcp251x_platform_data {
         unsigned long oscillator_frequency;
         int model;
-#define CAN_MCP251X_MCP2510 0
-#define CAN_MCP251X_MCP2515 1
+#define CAN_MCP251X_MCP2510 0x2510
+#define CAN_MCP251X_MCP2515 0x2515
         int (*board_specific_setup)(struct spi_device *spi);
         int (*transceiver_enable)(int enable);
         int (*power_enable) (int enable);
diff --git a/include/linux/can/platform/sja1000.h b/include/linux/can/platform/sja1000.h
index 01ee2aeb048d..96f8fcc78d78 100644
--- a/include/linux/can/platform/sja1000.h
+++ b/include/linux/can/platform/sja1000.h
@@ -26,7 +26,7 @@
 #define OCR_TX_SHIFT      2
 
 struct sja1000_platform_data {
-        u32 clock;      /* CAN bus oscillator frequency in Hz */
+        u32 osc_freq;   /* CAN bus oscillator frequency in Hz */
 
         u8 ocr;         /* output control register */
         u8 cdr;         /* clock divider register */
diff --git a/include/linux/can/platform/ti_hecc.h b/include/linux/can/platform/ti_hecc.h
index 4688c7bb1bd1..af17cb3f7a84 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