Commit 1c82392a authored by Gerd Hoffmann's avatar Gerd Hoffmann
Browse files

xhci: add tracepoint for endpoint state changes 



Signed-off-by: default avatarGerd Hoffmann <kraxel@redhat.com>
parent 52190422

hw/usb/hcd-xhci.c

+19 −0
Original line number Diff line number Diff line
@@ -586,6 +586,14 @@ static const char *TRBCCode_names[] = { 
    [CC_SPLIT_TRANSACTION_ERROR]       = "CC_SPLIT_TRANSACTION_ERROR",

};



static const char *ep_state_names[] = {

    [EP_DISABLED] = "disabled",

    [EP_RUNNING]  = "running",

    [EP_HALTED]   = "halted",

    [EP_STOPPED]  = "stopped",

    [EP_ERROR]    = "error",

};



static const char *lookup_name(uint32_t index, const char **list, uint32_t llen)

{

    if (index >= llen || list[index] == NULL) {
@@ -606,6 +614,12 @@ static const char *event_name(XHCIEvent *event) 
                       ARRAY_SIZE(TRBCCode_names));

}



static const char *ep_state_name(uint32_t state)

{

    return lookup_name(state, ep_state_names,

                       ARRAY_SIZE(ep_state_names));

}



static uint64_t xhci_mfindex_get(XHCIState *xhci)

{

    int64_t now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
@@ -1203,6 +1217,11 @@ static void xhci_set_ep_state(XHCIState *xhci, XHCIEPContext *epctx, 
    }



    xhci_dma_write_u32s(xhci, epctx->pctx, ctx, sizeof(ctx));

    if (epctx->state != state) {

        trace_usb_xhci_ep_state(epctx->slotid, epctx->epid,

                                ep_state_name(epctx->state),

                                ep_state_name(state));

    }

    epctx->state = state;

}

trace-events

+1 −0
Original line number Diff line number Diff line
@@ -381,6 +381,7 @@ usb_xhci_ep_set_dequeue(uint32_t slotid, uint32_t epid, uint32_t streamid, uint6 
usb_xhci_ep_kick(uint32_t slotid, uint32_t epid, uint32_t streamid) "slotid %d, epid %d, streamid %d"

usb_xhci_ep_stop(uint32_t slotid, uint32_t epid) "slotid %d, epid %d"

usb_xhci_ep_reset(uint32_t slotid, uint32_t epid) "slotid %d, epid %d"

usb_xhci_ep_state(uint32_t slotid, uint32_t epid, const char *os, const char *ns) "slotid %d, epid %d, %s -> %s"

usb_xhci_xfer_start(void *xfer, uint32_t slotid, uint32_t epid, uint32_t streamid) "%p: slotid %d, epid %d, streamid %d"

usb_xhci_xfer_async(void *xfer) "%p"

usb_xhci_xfer_nak(void *xfer) "%p"