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usb: dwc3: trace: pretty-print TRB's ctrl field

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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>
This commit is contained in:
Janusz Dziedzic 2016-05-20 10:37:13 +02:00 committed by Felipe Balbi
parent 74674cbf85
commit 22f2c619a1
1 changed files with 38 additions and 2 deletions
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40
drivers/usb/dwc3/trace.h
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@ -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; })
)
);