Commit c32da151 authored by Gerd Hoffmann's avatar Gerd Hoffmann
Browse files

usb-host: add trace events for iso xfers 



Replace iso transfer fprintf's with trace points.  Also rename existing
tracepoints so they all match usb_host_iso_*.

Signed-off-by: default avatarGerd Hoffmann <kraxel@redhat.com>
parent 7c37e6a4

hw/usb/host-linux.c

+6 −4
Original line number Diff line number Diff line
@@ -213,7 +213,7 @@ static int is_iso_started(USBHostDevice *s, int pid, int ep) 


static void clear_iso_started(USBHostDevice *s, int pid, int ep)

{

    trace_usb_host_ep_stop_iso(s->bus_num, s->addr, ep);

    trace_usb_host_iso_stop(s->bus_num, s->addr, ep);

    get_endp(s, pid, ep)->iso_started = 0;

}
@@ -221,7 +221,7 @@ static void set_iso_started(USBHostDevice *s, int pid, int ep) 
{

    struct endp_data *e = get_endp(s, pid, ep);



    trace_usb_host_ep_start_iso(s->bus_num, s->addr, ep);

    trace_usb_host_iso_start(s->bus_num, s->addr, ep);

    if (!e->iso_started) {

        e->iso_started = 1;

        e->inflight = 0;
@@ -319,7 +319,8 @@ static void async_complete(void *opaque) 
        if (r < 0) {

            if (errno == EAGAIN) {

                if (urbs > 2) {

                    fprintf(stderr, "husb: %d iso urbs finished at once\n", urbs);

                    /* indicates possible latency issues */

                    trace_usb_host_iso_many_urbs(s->bus_num, s->addr, urbs);

                }

                return;

            }
@@ -352,7 +353,8 @@ static void async_complete(void *opaque) 
            urbs++;

            inflight = change_iso_inflight(s, pid, ep, -1);

            if (inflight == 0 && is_iso_started(s, pid, ep)) {

                fprintf(stderr, "husb: out of buffers for iso stream\n");

                /* can be latency issues, or simply end of stream */

                trace_usb_host_iso_out_of_bufs(s->bus_num, s->addr, ep);

            }

            continue;

        }

trace-events

+4 −2
Original line number Diff line number Diff line
@@ -368,8 +368,10 @@ usb_host_urb_complete(int bus, int addr, void *aurb, int status, int length, int 
usb_host_urb_canceled(int bus, int addr, void *aurb) "dev %d:%d, aurb %p"

usb_host_ep_set_halt(int bus, int addr, int ep) "dev %d:%d, ep %d"

usb_host_ep_clear_halt(int bus, int addr, int ep) "dev %d:%d, ep %d"

usb_host_ep_start_iso(int bus, int addr, int ep) "dev %d:%d, ep %d"

usb_host_ep_stop_iso(int bus, int addr, int ep) "dev %d:%d, ep %d"

usb_host_iso_start(int bus, int addr, int ep) "dev %d:%d, ep %d"

usb_host_iso_stop(int bus, int addr, int ep) "dev %d:%d, ep %d"

usb_host_iso_out_of_bufs(int bus, int addr, int ep) "dev %d:%d, ep %d"

usb_host_iso_many_urbs(int bus, int addr, int count) "dev %d:%d, count %d"

usb_host_reset(int bus, int addr) "dev %d:%d"

usb_host_auto_scan_enabled(void)

usb_host_auto_scan_disabled(void)