From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:55311) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VEf6X-0008Qb-J2 for qemu-devel@nongnu.org; Wed, 28 Aug 2013 08:44:15 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VEf6R-0003hy-JZ for qemu-devel@nongnu.org; Wed, 28 Aug 2013 08:44:09 -0400 Received: from mx1.redhat.com ([209.132.183.28]:31325) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VEf6R-0003hs-A4 for qemu-devel@nongnu.org; Wed, 28 Aug 2013 08:44:03 -0400 Received: from int-mx01.intmail.prod.int.phx2.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id r7SCi2Mq017773 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Wed, 28 Aug 2013 08:44:02 -0400 From: Gerd Hoffmann Date: Wed, 28 Aug 2013 14:42:58 +0200 Message-Id: <1377693786-10844-4-git-send-email-kraxel@redhat.com> In-Reply-To: <1377693786-10844-1-git-send-email-kraxel@redhat.com> References: <1377693786-10844-1-git-send-email-kraxel@redhat.com> Subject: [Qemu-devel] [PATCH 02/10] xhci: add tracepoint for endpoint state changes List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Gerd Hoffmann Signed-off-by: Gerd Hoffmann --- hw/usb/hcd-xhci.c | 19 +++++++++++++++++++ trace-events | 1 + 2 files changed, 20 insertions(+) diff --git a/hw/usb/hcd-xhci.c b/hw/usb/hcd-xhci.c index 57c06e7..83161b9 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; } diff --git a/trace-events b/trace-events index 3856b5c..eb8eaef 100644 --- a/trace-events +++ b/trace-events @@ -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" -- 1.8.3.1