usb: renesas_usbhs: add usbhs_pipe_is_stall()

This is preparation for chapter 9 test

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

2 files changed, 8 insertions, 0 deletions

diff --git a/drivers/usb/renesas_usbhs/pipe.c b/drivers/usb/renesas_usbhs/pipe.c
index c74389ce2177..c36ad4c3a259 100644
--- a/drivers/usb/renesas_usbhs/pipe.c
+++ b/drivers/usb/renesas_usbhs/pipe.c
@@ -257,6 +257,13 @@ void usbhs_pipe_stall(struct usbhs_pipe *pipe)
         }
 }
 
+int usbhs_pipe_is_stall(struct usbhs_pipe *pipe)
+{
+        u16 pid = usbhsp_pipectrl_get(pipe) & PID_MASK;
+
+        return (int)(pid == PID_STALL10 || pid == PID_STALL11);
+}
+
 /*
  *              pipe setup
  */
diff --git a/drivers/usb/renesas_usbhs/pipe.h b/drivers/usb/renesas_usbhs/pipe.h
index 6334fc644cc0..fa18b7dc2b2a 100644
--- a/drivers/usb/renesas_usbhs/pipe.h
+++ b/drivers/usb/renesas_usbhs/pipe.h
@@ -87,6 +87,7 @@ int usbhs_pipe_is_accessible(struct usbhs_pipe *pipe);
 void usbhs_pipe_enable(struct usbhs_pipe *pipe);
 void usbhs_pipe_disable(struct usbhs_pipe *pipe);
 void usbhs_pipe_stall(struct usbhs_pipe *pipe);
+int usbhs_pipe_is_stall(struct usbhs_pipe *pipe);
 void usbhs_pipe_select_fifo(struct usbhs_pipe *pipe, struct usbhs_fifo *fifo);
 void usbhs_pipe_config_update(struct usbhs_pipe *pipe, u16 devsel,
                               u16 epnum, u16 maxp);