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usb: dwc3: trace: print out ep0state also from XferComplete 

With this extra piece of information, it will be
easier to find mismatches between driver and HW.

Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
Felipe Balbi 2016-09-26 13:23:34 +03:00
parent cdd72ac20b
commit 43c96be1c4
4 changed files with 16 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
drivers/usb/dwc3/debug.h
View File

@ -200,10 +200,11 @@ dwc3_gadget_event_string(const struct dwc3_event_devt *event)
* @event: then event code
*/
static inline const char *
dwc3_ep_event_string(const struct dwc3_event_depevt *event)
dwc3_ep_event_string(const struct dwc3_event_depevt *event, u32 ep0state)
{
u8 epnum = event->endpoint_number;
static char str[256];
size_t len;
int status;
int ret;
@ -215,6 +216,10 @@ dwc3_ep_event_string(const struct dwc3_event_depevt *event)
switch (event->endpoint_event) {
case DWC3_DEPEVT_XFERCOMPLETE:
strcat(str, "Transfer Complete");
len = strlen(str);
if (epnum <= 1)
sprintf(str + len, " [%s]", dwc3_ep0_state_string(ep0state));
break;
case DWC3_DEPEVT_XFERINPROGRESS:
strcat(str, "Transfer In-Progress");
@ -299,14 +304,14 @@ static inline const char *dwc3_gadget_event_type_string(u8 event)
}
}
static inline const char *dwc3_decode_event(u32 event)
static inline const char *dwc3_decode_event(u32 event, u32 ep0state)
{
const union dwc3_event evt = (union dwc3_event) event;
if (evt.type.is_devspec)
return dwc3_gadget_event_string(&evt.devt);
else
return dwc3_ep_event_string(&evt.depevt);
return dwc3_ep_event_string(&evt.depevt, ep0state);
}
static inline const char *dwc3_ep_cmd_status_string(int status)

4
drivers/usb/dwc3/ep0.c
View File

@ -1078,10 +1078,6 @@ static void dwc3_ep0_xfernotready(struct dwc3 *dwc,
void dwc3_ep0_interrupt(struct dwc3 *dwc,
const struct dwc3_event_depevt *event)
{
dwc3_trace(trace_dwc3_ep0, "%s: state '%s'",
dwc3_ep_event_string(event),
dwc3_ep0_state_string(dwc->ep0state));
switch (event->endpoint_event) {
case DWC3_DEPEVT_XFERCOMPLETE:
dwc3_ep0_xfer_complete(dwc, event);

2
drivers/usb/dwc3/gadget.c
View File

@ -2728,7 +2728,7 @@ static void dwc3_gadget_interrupt(struct dwc3 *dwc,
static void dwc3_process_event_entry(struct dwc3 *dwc,
const union dwc3_event *event)
{
trace_dwc3_event(event->raw);
trace_dwc3_event(event->raw, dwc);
/* Endpoint IRQ, handle it and return early */
if (event->type.is_devspec == 0) {

12
drivers/usb/dwc3/trace.h
View File

@ -63,21 +63,23 @@ DEFINE_EVENT(dwc3_log_msg, dwc3_ep0,
);
DECLARE_EVENT_CLASS(dwc3_log_event,
TP_PROTO(u32 event),
TP_ARGS(event),
TP_PROTO(u32 event, struct dwc3 *dwc),
TP_ARGS(event, dwc),
TP_STRUCT__entry(
__field(u32, event)
__field(u32, ep0state)
),
TP_fast_assign(
__entry->event = event;
__entry->ep0state = dwc->ep0state;
),
TP_printk("event (%08x): %s", __entry->event,
dwc3_decode_event(__entry->event))
dwc3_decode_event(__entry->event, __entry->ep0state))
);
DEFINE_EVENT(dwc3_log_event, dwc3_event,
TP_PROTO(u32 event),
TP_ARGS(event)
TP_PROTO(u32 event, struct dwc3 *dwc),
TP_ARGS(event, dwc)
);
DECLARE_EVENT_CLASS(dwc3_log_ctrl,