diff options
Diffstat (limited to 'include/usb/xhci.h')
| -rw-r--r-- | include/usb/xhci.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/usb/xhci.h b/include/usb/xhci.h index a3e5914b10f..15926eb9f4d 100644 --- a/include/usb/xhci.h +++ b/include/usb/xhci.h @@ -850,6 +850,8 @@ struct xhci_event_cmd { /* transfer_len bitmasks - bits 0:16 */ #define TRB_LEN(p) ((p) & 0x1ffff) #define TRB_LEN_MASK (0x1ffff) +/* TD Size, packets remaining in this TD, bits 21:17 (5 bits, so max 31) */ +#define TRB_TD_SIZE(p) (min((p), (u32)31) << 17) /* Interrupter Target - which MSI-X vector to target the completion event at */ #define TRB_INTR_TARGET_SHIFT (22) #define TRB_INTR_TARGET_MASK (0x3ff) |