xhci: add helper to get the endpoint state of a endpoint context
define GET_EP_CTX_STATE() macro to get the endpoint state from a
pointer to a le32 enpoint context structure
No functional changes
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 0751c6a..ad1a25b 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -709,6 +709,8 @@ struct xhci_ep_ctx {
#define EP_STATE_HALTED 2
#define EP_STATE_STOPPED 3
#define EP_STATE_ERROR 4
+#define GET_EP_CTX_STATE(ctx) (le32_to_cpu((ctx)->ep_info) & EP_STATE_MASK)
+
/* Mult - Max number of burtst within an interval, in EP companion desc. */
#define EP_MULT(p) (((p) & 0x3) << 8)
#define CTX_TO_EP_MULT(p) (((p) >> 8) & 0x3)