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usb: add tracepoint for usb packet state changes.

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Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Gerd Hoffmann 2012-02-24 11:03:27 +01:00
parent 7d1994f863
commit 808aeb98ff
2 changed files with 8 additions and 22 deletions
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27
hw/usb.c
View File

@ -26,6 +26,7 @@
#include "qemu-common.h"
#include "usb.h"
#include "iov.h"
#include "trace.h"
void usb_attach(USBPort *port)
{
@ -390,7 +391,6 @@ void usb_packet_init(USBPacket *p)
void usb_packet_set_state(USBPacket *p, USBPacketState state)
{
#ifdef DEBUG
static const char *name[] = {
[USB_PACKET_UNDEFINED] = "undef",
[USB_PACKET_SETUP] = "setup",
@ -399,28 +399,11 @@ void usb_packet_set_state(USBPacket *p, USBPacketState state)
[USB_PACKET_COMPLETE] = "complete",
[USB_PACKET_CANCELED] = "canceled",
};
static const char *rets[] = {
[-USB_RET_NODEV] = "NODEV",
[-USB_RET_NAK] = "NAK",
[-USB_RET_STALL] = "STALL",
[-USB_RET_BABBLE] = "BABBLE",
[-USB_RET_ASYNC] = "ASYNC",
};
char add[16] = "";
USBDevice *dev = p->ep->dev;
USBBus *bus = usb_bus_from_device(dev);
if (state == USB_PACKET_COMPLETE) {
if (p->result < 0) {
snprintf(add, sizeof(add), " - %s", rets[-p->result]);
} else {
snprintf(add, sizeof(add), " - %d", p->result);
}
}
fprintf(stderr, "bus %s, port %s, dev %d, ep %d: packet %p: %s -> %s%s\n",
p->ep->dev->qdev.parent_bus->name,
p->ep->dev->port->path,
p->ep->dev->addr, p->ep->nr,
p, name[p->state], name[state], add);
#endif
trace_usb_packet_state_change(bus->busnr, dev->port->path, p->ep->nr,
p, name[p->state], name[state]);
p->state = state;
}

3
trace-events
View File

@ -227,6 +227,9 @@ sun4m_iommu_page_get_flags(uint64_t pa, uint64_t iopte, uint32_t ret) "get flags
sun4m_iommu_translate_pa(uint64_t addr, uint64_t pa, uint32_t iopte) "xlate dva %"PRIx64" => pa %"PRIx64" iopte = %x"
sun4m_iommu_bad_addr(uint64_t addr) "bad addr %"PRIx64
# hw/usb.c
usb_packet_state_change(int bus, const char *port, int ep, void *p, const char *o, const char *n) "bus %d, port %s, ep %d, packet %p, state %s -> %s"
# hw/usb-bus.c
usb_port_claim(int bus, const char *port) "bus %d, port %s"
usb_port_attach(int bus, const char *port) "bus %d, port %s"