diff options
| author | Felipe Balbi <felipe.balbi@linux.intel.com> | 2016-09-26 12:54:04 +0300 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2016-10-31 11:15:36 +0200 |
| commit | 45a2af2f2b5af38743024a2a4fc154e2be93bd20 (patch) | |
| tree | 21e632ffeb37f1ae95238317538769b9298fbe1e | |
| parent | 799e9dc82968c66d6f8faf96d0bd01e515b0b2f2 (diff) | |
| download | blackbird-op-linux-45a2af2f2b5af38743024a2a4fc154e2be93bd20.tar.gz blackbird-op-linux-45a2af2f2b5af38743024a2a4fc154e2be93bd20.zip | |
usb: dwc3: debug: decode control endpoint phase too
DWC3 can tell us which phase of a setup transfer
we're getting into. Let's decode it from the event
to make it easier to debug.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
| -rw-r--r-- | drivers/usb/dwc3/core.h | 1 | ||||
| -rw-r--r-- | drivers/usb/dwc3/debug.h | 13 |
2 files changed, 14 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index 99fa8b8b06fe..18e4c09ae286 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -1041,6 +1041,7 @@ struct dwc3_event_depevt { /* Control-only Status */ #define DEPEVT_STATUS_CONTROL_DATA 1 #define DEPEVT_STATUS_CONTROL_STATUS 2 +#define DEPEVT_STATUS_CONTROL_PHASE(n) ((n) & 3) /* In response to Start Transfer */ #define DEPEVT_TRANSFER_NO_RESOURCE 1 diff --git a/drivers/usb/dwc3/debug.h b/drivers/usb/dwc3/debug.h index 33ab2a203c1b..fe8abee31551 100644 --- a/drivers/usb/dwc3/debug.h +++ b/drivers/usb/dwc3/debug.h @@ -207,6 +207,19 @@ dwc3_ep_event_string(const struct dwc3_event_depevt *event) strcat(str, "Transfer Not Ready"); status = event->status & DEPEVT_STATUS_TRANSFER_ACTIVE; strcat(str, status ? " (Active)" : " (Not Active)"); + + /* Control Endpoints */ + if (epnum <= 1) { + int phase = DEPEVT_STATUS_CONTROL_PHASE(event->status); + + switch (phase) { + case DEPEVT_STATUS_CONTROL_DATA: + strcat(str, " [Data Phase]"); + break; + case DEPEVT_STATUS_CONTROL_STATUS: + strcat(str, " [Status Phase]"); + } + } break; case DWC3_DEPEVT_RXTXFIFOEVT: strcat(str, "FIFO"); |
