diff options
| author | Janusz Dziedzic <januszx.dziedzic@linux.intel.com> | 2016-05-20 10:37:13 +0200 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2016-06-20 12:32:39 +0300 |
| commit | 22f2c619a116f120fe57de1225cfe7fdeb0b12d2 (patch) | |
| tree | 53d18961fa9cb0ccfd429e37dfb8dcd4e98e3b95 /drivers/usb/dwc3/trace.h | |
| parent | 74674cbf858ff6a83c3f06f4ab0ffa5d3c91bf0b (diff) | |
usb: dwc3: trace: pretty-print TRB's ctrl field
Improve trb tracing by showing trb flags, interrupts
trb type.
trb flags:
- h - hardware owner of descriptor
- l - last TRB
- c - chain buffers
- s - continue on short packet
interrupt flags:
- s - interrupt on short packet
- c - interrupt on complete
Capital letter means that bit is set, while
lowercase letter means bit is cleared.
Signed-off-by: Janusz Dziedzic <januszx.dziedzic@linux.intel.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb/dwc3/trace.h')
| -rw-r--r-- | drivers/usb/dwc3/trace.h | 40 |
1 files changed, 38 insertions, 2 deletions
diff --git a/drivers/usb/dwc3/trace.h b/drivers/usb/dwc3/trace.h index 3ac7252f4427..8cbe1fc9c8d4 100644 --- a/drivers/usb/dwc3/trace.h +++ b/drivers/usb/dwc3/trace.h @@ -237,9 +237,45 @@ DECLARE_EVENT_CLASS(dwc3_log_trb, __entry->size = trb->size; __entry->ctrl = trb->ctrl; ), - TP_printk("%s: trb %p bph %08x bpl %08x size %08x ctrl %08x", + TP_printk("%s: trb %p buf %08x%08x size %d ctrl %08x (%c%c%c%c:%c%c:%s)", __get_str(name), __entry->trb, __entry->bph, __entry->bpl, - __entry->size, __entry->ctrl + __entry->size, __entry->ctrl, + __entry->ctrl & DWC3_TRB_CTRL_HWO ? 'H' : 'h', + __entry->ctrl & DWC3_TRB_CTRL_LST ? 'L' : 'l', + __entry->ctrl & DWC3_TRB_CTRL_CHN ? 'C' : 'c', + __entry->ctrl & DWC3_TRB_CTRL_CSP ? 'S' : 's', + __entry->ctrl & DWC3_TRB_CTRL_ISP_IMI ? 'S' : 's', + __entry->ctrl & DWC3_TRB_CTRL_IOC ? 'C' : 'c', + ({char *s; + switch (__entry->ctrl & 0x3f0) { + case DWC3_TRBCTL_NORMAL: + s = "normal"; + break; + case DWC3_TRBCTL_CONTROL_SETUP: + s = "setup"; + break; + case DWC3_TRBCTL_CONTROL_STATUS2: + s = "status2"; + break; + case DWC3_TRBCTL_CONTROL_STATUS3: + s = "status3"; + break; + case DWC3_TRBCTL_CONTROL_DATA: + s = "data"; + break; + case DWC3_TRBCTL_ISOCHRONOUS_FIRST: + s = "isoc-first"; + break; + case DWC3_TRBCTL_ISOCHRONOUS: + s = "isoc"; + break; + case DWC3_TRBCTL_LINK_TRB: + s = "link"; + break; + default: + s = "UNKNOWN"; + break; + } s; }) ) ); |