usb: musb: host: add urb tracepoints

Add urb tracepoints for host mode.

Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index 7601ada..53bc4ce 100644 (file)
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -44,6 +44,7 @@
 
 #include "musb_core.h"
 #include "musb_host.h"
+#include "musb_trace.h"
 
 /* MUSB HOST status 22-mar-2006
  *
@@ -225,8 +226,6 @@ musb_start_urb(struct musb *musb, int is_in, struct musb_qh *qh)
        void                    *buf = urb->transfer_buffer;
        u32                     offset = 0;
        struct musb_hw_ep       *hw_ep = qh->hw_ep;
-       unsigned                pipe = urb->pipe;
-       u8                      address = usb_pipedevice(pipe);
        int                     epnum = hw_ep->epnum;
 
        /* initialize software qh state */
@@ -254,16 +253,7 @@ musb_start_urb(struct musb *musb, int is_in, struct musb_qh *qh)
                len = urb->transfer_buffer_length - urb->actual_length;
        }
 
-       musb_dbg(musb, "qh %p urb %p dev%d ep%d%s%s, hw_ep %d, %p/%d",
-                       qh, urb, address, qh->epnum,
-                       is_in ? "in" : "out",
-                       ({char *s; switch (qh->type) {
-                       case USB_ENDPOINT_XFER_CONTROL: s = ""; break;
-                       case USB_ENDPOINT_XFER_BULK:    s = "-bulk"; break;
-                       case USB_ENDPOINT_XFER_ISOC:    s = "-iso"; break;
-                       default:                        s = "-intr"; break;
-                       } s; }),
-                       epnum, buf + offset, len);
+       trace_musb_urb_start(musb, urb);
 
        /* Configure endpoint */
        musb_ep_set_qh(hw_ep, is_in, qh);
@@ -314,13 +304,7 @@ static void musb_giveback(struct musb *musb, struct urb *urb, int status)
 __releases(musb->lock)
 __acquires(musb->lock)
 {
-       musb_dbg(musb, "complete %p %pF (%d), dev%d ep%d%s, %d/%d",
-                       urb, urb->complete, status,
-                       usb_pipedevice(urb->pipe),
-                       usb_pipeendpoint(urb->pipe),
-                       usb_pipein(urb->pipe) ? "in" : "out",
-                       urb->actual_length, urb->transfer_buffer_length
-                       );
+       trace_musb_urb_gb(musb, urb);
 
        usb_hcd_unlink_urb_from_ep(musb->hcd, urb);
        spin_unlock(&musb->lock);
@@ -1296,6 +1280,7 @@ void musb_host_tx(struct musb *musb, u8 epnum)
 
        pipe = urb->pipe;
        dma = is_dma_capable() ? hw_ep->tx_channel : NULL;
+       trace_musb_urb_tx(musb, urb);
        musb_dbg(musb, "OUT/TX%d end, csr %04x%s", epnum, tx_csr,
                        dma ? ", dma" : "");
 
@@ -1853,9 +1838,7 @@ void musb_host_rx(struct musb *musb, u8 epnum)
 
        pipe = urb->pipe;
 
-       musb_dbg(musb, "<== hw %d rxcsr %04x, urb actual %d (+dma %zu)",
-               epnum, rx_csr, urb->actual_length,
-               dma ? dma->actual_len : 0);
+       trace_musb_urb_rx(musb, urb);
 
        /* check for errors, concurrent stall & unlink is not really
         * handled yet! */
@@ -2208,6 +2191,8 @@ static int musb_urb_enqueue(
        if (!is_host_active(musb) || !musb->is_active)
                return -ENODEV;
 
+       trace_musb_urb_enq(musb, urb);
+
        spin_lock_irqsave(&musb->lock, flags);
        ret = usb_hcd_link_urb_to_ep(hcd, urb);
        qh = ret ? NULL : hep->hcpriv;
@@ -2444,10 +2429,7 @@ static int musb_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
        int                     is_in  = usb_pipein(urb->pipe);
        int                     ret;
 
-       musb_dbg(musb, "urb=%p, dev%d ep%d%s", urb,
-                       usb_pipedevice(urb->pipe),
-                       usb_pipeendpoint(urb->pipe),
-                       is_in ? "in" : "out");
+       trace_musb_urb_deq(musb, urb);
 
        spin_lock_irqsave(&musb->lock, flags);
        ret = usb_hcd_check_unlink_urb(hcd, urb, status);

diff --git a/drivers/usb/musb/musb_trace.h b/drivers/usb/musb/musb_trace.h
index 98acc1e..39258f6 100644 (file)
--- a/drivers/usb/musb/musb_trace.h
+++ b/drivers/usb/musb/musb_trace.h
@@ -23,6 +23,7 @@
 
 #include <linux/types.h>
 #include <linux/tracepoint.h>
+#include <linux/usb.h>
 #include "musb_core.h"
 
 #define MUSB_MSG_MAX   500
@@ -149,6 +150,68 @@ TRACE_EVENT(musb_isr,
        )
 );
 
+DECLARE_EVENT_CLASS(musb_urb,
+       TP_PROTO(struct musb *musb, struct urb *urb),
+       TP_ARGS(musb, urb),
+       TP_STRUCT__entry(
+               __string(name, dev_name(musb->controller))
+               __field(struct urb *, urb)
+               __field(unsigned int, pipe)
+               __field(int, status)
+               __field(unsigned int, flag)
+               __field(u32, buf_len)
+               __field(u32, actual_len)
+       ),
+       TP_fast_assign(
+               __assign_str(name, dev_name(musb->controller));
+               __entry->urb = urb;
+               __entry->pipe = urb->pipe;
+               __entry->status = urb->status;
+               __entry->flag = urb->transfer_flags;
+               __entry->buf_len = urb->transfer_buffer_length;
+               __entry->actual_len = urb->actual_length;
+       ),
+       TP_printk("%s: %p, dev%d ep%d%s, flag 0x%x, len %d/%d, status %d",
+                       __get_str(name), __entry->urb,
+                       usb_pipedevice(__entry->pipe),
+                       usb_pipeendpoint(__entry->pipe),
+                       usb_pipein(__entry->pipe) ? "in" : "out",
+                       __entry->flag,
+                       __entry->actual_len, __entry->buf_len,
+                       __entry->status
+       )
+);
+
+DEFINE_EVENT(musb_urb, musb_urb_start,
+       TP_PROTO(struct musb *musb, struct urb *urb),
+       TP_ARGS(musb, urb)
+);
+
+DEFINE_EVENT(musb_urb, musb_urb_gb,
+       TP_PROTO(struct musb *musb, struct urb *urb),
+       TP_ARGS(musb, urb)
+);
+
+DEFINE_EVENT(musb_urb, musb_urb_rx,
+       TP_PROTO(struct musb *musb, struct urb *urb),
+       TP_ARGS(musb, urb)
+);
+
+DEFINE_EVENT(musb_urb, musb_urb_tx,
+       TP_PROTO(struct musb *musb, struct urb *urb),
+       TP_ARGS(musb, urb)
+);
+
+DEFINE_EVENT(musb_urb, musb_urb_enq,
+       TP_PROTO(struct musb *musb, struct urb *urb),
+       TP_ARGS(musb, urb)
+);
+
+DEFINE_EVENT(musb_urb, musb_urb_deq,
+       TP_PROTO(struct musb *musb, struct urb *urb),
+       TP_ARGS(musb, urb)
+);
+
 #endif /* __MUSB_TRACE_H */
 
 /* this part has to be here */