diff options
| author | Gerd Hoffmann <kraxel@redhat.com> | 2013-04-24 15:01:25 +0200 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2013-09-02 11:06:19 +0200 |
| commit | 1c82392a158471355aa6d1922df2d1545bb16b95 (patch) | |
| tree | f1984e36e20f3af53b240f6d34aed2056e4a24f7 /hw | |
| parent | 5219042274fa2f993c25202680eeaea42193389d (diff) | |
xhci: add tracepoint for endpoint state changes
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/usb/hcd-xhci.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/hw/usb/hcd-xhci.c b/hw/usb/hcd-xhci.c index 57c06e7130..83161b9a3d 100644 --- a/hw/usb/hcd-xhci.c +++ b/hw/usb/hcd-xhci.c @@ -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; } |