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path: root/drivers/net/can/usb/kvaser_usb.c
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Diffstat (limited to 'drivers/net/can/usb/kvaser_usb.c')
-rw-r--r--drivers/net/can/usb/kvaser_usb.c64
1 files changed, 43 insertions, 21 deletions
diff --git a/drivers/net/can/usb/kvaser_usb.c b/drivers/net/can/usb/kvaser_usb.c
index 45cb9f3c1324..3b9546588240 100644
--- a/drivers/net/can/usb/kvaser_usb.c
+++ b/drivers/net/can/usb/kvaser_usb.c
@@ -136,6 +136,9 @@
136#define KVASER_CTRL_MODE_SELFRECEPTION 3 136#define KVASER_CTRL_MODE_SELFRECEPTION 3
137#define KVASER_CTRL_MODE_OFF 4 137#define KVASER_CTRL_MODE_OFF 4
138 138
139/* log message */
140#define KVASER_EXTENDED_FRAME BIT(31)
141
139struct kvaser_msg_simple { 142struct kvaser_msg_simple {
140 u8 tid; 143 u8 tid;
141 u8 channel; 144 u8 channel;
@@ -817,8 +820,13 @@ static void kvaser_usb_rx_can_msg(const struct kvaser_usb *dev,
817 priv = dev->nets[channel]; 820 priv = dev->nets[channel];
818 stats = &priv->netdev->stats; 821 stats = &priv->netdev->stats;
819 822
820 if (msg->u.rx_can.flag & (MSG_FLAG_ERROR_FRAME | MSG_FLAG_NERR | 823 if ((msg->u.rx_can.flag & MSG_FLAG_ERROR_FRAME) &&
821 MSG_FLAG_OVERRUN)) { 824 (msg->id == CMD_LOG_MESSAGE)) {
825 kvaser_usb_rx_error(dev, msg);
826 return;
827 } else if (msg->u.rx_can.flag & (MSG_FLAG_ERROR_FRAME |
828 MSG_FLAG_NERR |
829 MSG_FLAG_OVERRUN)) {
822 kvaser_usb_rx_can_err(priv, msg); 830 kvaser_usb_rx_can_err(priv, msg);
823 return; 831 return;
824 } else if (msg->u.rx_can.flag & ~MSG_FLAG_REMOTE_FRAME) { 832 } else if (msg->u.rx_can.flag & ~MSG_FLAG_REMOTE_FRAME) {
@@ -834,22 +842,40 @@ static void kvaser_usb_rx_can_msg(const struct kvaser_usb *dev,
834 return; 842 return;
835 } 843 }
836 844
837 cf->can_id = ((msg->u.rx_can.msg[0] & 0x1f) << 6) | 845 if (msg->id == CMD_LOG_MESSAGE) {
838 (msg->u.rx_can.msg[1] & 0x3f); 846 cf->can_id = le32_to_cpu(msg->u.log_message.id);
839 cf->can_dlc = get_can_dlc(msg->u.rx_can.msg[5]); 847 if (cf->can_id & KVASER_EXTENDED_FRAME)
848 cf->can_id &= CAN_EFF_MASK | CAN_EFF_FLAG;
849 else
850 cf->can_id &= CAN_SFF_MASK;
840 851
841 if (msg->id == CMD_RX_EXT_MESSAGE) { 852 cf->can_dlc = get_can_dlc(msg->u.log_message.dlc);
842 cf->can_id <<= 18;
843 cf->can_id |= ((msg->u.rx_can.msg[2] & 0x0f) << 14) |
844 ((msg->u.rx_can.msg[3] & 0xff) << 6) |
845 (msg->u.rx_can.msg[4] & 0x3f);
846 cf->can_id |= CAN_EFF_FLAG;
847 }
848 853
849 if (msg->u.rx_can.flag & MSG_FLAG_REMOTE_FRAME) 854 if (msg->u.log_message.flags & MSG_FLAG_REMOTE_FRAME)
850 cf->can_id |= CAN_RTR_FLAG; 855 cf->can_id |= CAN_RTR_FLAG;
851 else 856 else
852 memcpy(cf->data, &msg->u.rx_can.msg[6], cf->can_dlc); 857 memcpy(cf->data, &msg->u.log_message.data,
858 cf->can_dlc);
859 } else {
860 cf->can_id = ((msg->u.rx_can.msg[0] & 0x1f) << 6) |
861 (msg->u.rx_can.msg[1] & 0x3f);
862
863 if (msg->id == CMD_RX_EXT_MESSAGE) {
864 cf->can_id <<= 18;
865 cf->can_id |= ((msg->u.rx_can.msg[2] & 0x0f) << 14) |
866 ((msg->u.rx_can.msg[3] & 0xff) << 6) |
867 (msg->u.rx_can.msg[4] & 0x3f);
868 cf->can_id |= CAN_EFF_FLAG;
869 }
870
871 cf->can_dlc = get_can_dlc(msg->u.rx_can.msg[5]);
872
873 if (msg->u.rx_can.flag & MSG_FLAG_REMOTE_FRAME)
874 cf->can_id |= CAN_RTR_FLAG;
875 else
876 memcpy(cf->data, &msg->u.rx_can.msg[6],
877 cf->can_dlc);
878 }
853 879
854 netif_rx(skb); 880 netif_rx(skb);
855 881
@@ -911,6 +937,7 @@ static void kvaser_usb_handle_message(const struct kvaser_usb *dev,
911 937
912 case CMD_RX_STD_MESSAGE: 938 case CMD_RX_STD_MESSAGE:
913 case CMD_RX_EXT_MESSAGE: 939 case CMD_RX_EXT_MESSAGE:
940 case CMD_LOG_MESSAGE:
914 kvaser_usb_rx_can_msg(dev, msg); 941 kvaser_usb_rx_can_msg(dev, msg);
915 break; 942 break;
916 943
@@ -919,11 +946,6 @@ static void kvaser_usb_handle_message(const struct kvaser_usb *dev,
919 kvaser_usb_rx_error(dev, msg); 946 kvaser_usb_rx_error(dev, msg);
920 break; 947 break;
921 948
922 case CMD_LOG_MESSAGE:
923 if (msg->u.log_message.flags & MSG_FLAG_ERROR_FRAME)
924 kvaser_usb_rx_error(dev, msg);
925 break;
926
927 case CMD_TX_ACKNOWLEDGE: 949 case CMD_TX_ACKNOWLEDGE:
928 kvaser_usb_tx_acknowledge(dev, msg); 950 kvaser_usb_tx_acknowledge(dev, msg);
929 break; 951 break;