On 23 January 2017 at 13:20, Mathias Nyman
<[email protected]> wrote:
> From: Felipe Balbi <[email protected]>
>
> 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: Felipe Balbi <[email protected]>
> Signed-off-by: Mathias Nyman <[email protected]>
> ---
> drivers/usb/host/xhci.h | 80
> +++++++++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 80 insertions(+)
>
> diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
> index aa63e38..ebdd920 100644
> --- a/drivers/usb/host/xhci.h
> +++ b/drivers/usb/host/xhci.h
> @@ -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)
> +{
BTW, maybe in the future we should use enum for status
and next:
#define C2S(x) case x: return #x
static inline const char *xhci_trb_comp_code_string(enum
xhci_trb_comp_code code)
{
switch(code) {
C2S(COMP_INVALID);
C2S(COMP_SUCCESS);
...
default:
return "Unknown!!";
}
}
#undef C2S
After that in dbgmsg/trace we will have same enum and we don't need
translate msg->enum while debugging.
> + 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;
> --
> 1.9.1
>
> --
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