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Commit ed6d643b authored by Felipe Balbi's avatar Felipe Balbi Committed by Greg Kroah-Hartman
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usb: host: xhci: combine event TRB completion debugging messages 



If we just provide a helper to convert completion code to string, we can
combine all debugging messages into a single print.

[keep the old debug messages, for warn and grep -Mathias]
Signed-off-by: default avatarFelipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: default avatarMathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent a54cfae3

drivers/usb/host/xhci.h

+80 −0
Original line number Diff line number Diff line
@@ -1097,6 +1097,86 @@ struct xhci_transfer_event { 
#define COMP_SECONDARY_BANDWIDTH_ERROR		35

#define COMP_SPLIT_TRANSACTION_ERROR		36



static inline const char *xhci_trb_comp_code_string(u8 status)

{

	switch (status) {

	case COMP_INVALID:

		return "Invalid";

	case COMP_SUCCESS:

		return "Success";

	case COMP_DATA_BUFFER_ERROR:

		return "Data Buffer Error";

	case COMP_BABBLE_DETECTED_ERROR:

		return "Babble Detected";

	case COMP_USB_TRANSACTION_ERROR:

		return "USB Transaction Error";

	case COMP_TRB_ERROR:

		return "TRB Error";

	case COMP_STALL_ERROR:

		return "Stall Error";

	case COMP_RESOURCE_ERROR:

		return "Resource Error";

	case COMP_BANDWIDTH_ERROR:

		return "Bandwidth Error";

	case COMP_NO_SLOTS_AVAILABLE_ERROR:

		return "No Slots Available Error";

	case COMP_INVALID_STREAM_TYPE_ERROR:

		return "Invalid Stream Type Error";

	case COMP_SLOT_NOT_ENABLED_ERROR:

		return "Slot Not Enabled Error";

	case COMP_ENDPOINT_NOT_ENABLED_ERROR:

		return "Endpoint Not Enabled Error";

	case COMP_SHORT_PACKET:

		return "Short Packet";

	case COMP_RING_UNDERRUN:

		return "Ring Underrun";

	case COMP_RING_OVERRUN:

		return "Ring Overrun";

	case COMP_VF_EVENT_RING_FULL_ERROR:

		return "VF Event Ring Full Error";

	case COMP_PARAMETER_ERROR:

		return "Parameter Error";

	case COMP_BANDWIDTH_OVERRUN_ERROR:

		return "Bandwidth Overrun Error";

	case COMP_CONTEXT_STATE_ERROR:

		return "Context State Error";

	case COMP_NO_PING_RESPONSE_ERROR:

		return "No Ping Response Error";

	case COMP_EVENT_RING_FULL_ERROR:

		return "Event Ring Full Error";

	case COMP_INCOMPATIBLE_DEVICE_ERROR:

		return "Incompatible Device Error";

	case COMP_MISSED_SERVICE_ERROR:

		return "Missed Service Error";

	case COMP_COMMAND_RING_STOPPED:

		return "Command Ring Stopped";

	case COMP_COMMAND_ABORTED:

		return "Command Aborted";

	case COMP_STOPPED:

		return "Stopped";

	case COMP_STOPPED_LENGTH_INVALID:

		return "Stopped - Length Invalid";

	case COMP_STOPPED_SHORT_PACKET:

		return "Stopped - Short Packet";

	case COMP_MAX_EXIT_LATENCY_TOO_LARGE_ERROR:

		return "Max Exit Latency Too Large Error";

	case COMP_ISOCH_BUFFER_OVERRUN:

		return "Isoch Buffer Overrun";

	case COMP_EVENT_LOST_ERROR:

		return "Event Lost Error";

	case COMP_UNDEFINED_ERROR:

		return "Undefined Error";

	case COMP_INVALID_STREAM_ID_ERROR:

		return "Invalid Stream ID Error";

	case COMP_SECONDARY_BANDWIDTH_ERROR:

		return "Secondary Bandwidth Error";

	case COMP_SPLIT_TRANSACTION_ERROR:

		return "Split Transaction Error";

	default:

		return "Unknown!!";

	}

}



struct xhci_link_trb {

	/* 64-bit segment pointer*/

	__le64 segment_ptr;