usb: dwc3: core: add helper to extract trb type

This helper will be used later to convert trb type
into a human-readable string for debugfs.

Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
index c3ea427..bbbd178 100644 (file)
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -580,6 +580,7 @@ enum dwc3_link_state {
 #define DWC3_TRB_CTRL_IOC              (1 << 11)
 #define DWC3_TRB_CTRL_SID_SOFN(n)      (((n) & 0xffff) << 14)
 
+#define DWC3_TRBCTL_TYPE(n)            ((n) & (0x3f << 4))
 #define DWC3_TRBCTL_NORMAL             DWC3_TRB_CTRL_TRBCTL(1)
 #define DWC3_TRBCTL_CONTROL_SETUP      DWC3_TRB_CTRL_TRBCTL(2)
 #define DWC3_TRBCTL_CONTROL_STATUS2    DWC3_TRB_CTRL_TRBCTL(3)