Merge remote-tracking branch 'kraxel/usb.81' into staging

# By Gerd Hoffmann (3) and Hans de Goede (1)
# Via Gerd Hoffmann
* kraxel/usb.81:
  usb-host: raise libusbx minimum version to 1.0.13
  usb: better speed mismatch error reporting
  ehci_free_packet: Discard finished packets when the queue is halted
  xhci: remove XHCIRing->base (unused)

Message-id: 1366705929-11251-1-git-send-email-kraxel@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

configure

@@ -3060,7 +3060,7 @@ fi
 
 # check for libusb
 if test "$libusb" != "no" ; then
-    if $pkg_config libusb-1.0 >/dev/null 2>&1 ; then
+    if $pkg_config --atleast-version=1.0.13 libusb-1.0 >/dev/null 2>&1 ; then
         libusb="yes"
 	usb="libusb"
         libusb_cflags=$($pkg_config --cflags libusb-1.0 2>/dev/null)

hw/usb/bus.c

@@ -417,19 +417,47 @@ void usb_release_port(USBDevice *dev)
     bus->nfree++;
 }
 
+static void usb_mask_to_str(char *dest, size_t size,
+                            unsigned int speedmask)
+{
+    static const struct {
+        unsigned int mask;
+        const char *name;
+    } speeds[] = {
+        { .mask = USB_SPEED_MASK_FULL,  .name = "full"  },
+        { .mask = USB_SPEED_MASK_HIGH,  .name = "high"  },
+        { .mask = USB_SPEED_MASK_SUPER, .name = "super" },
+    };
+    int i, pos = 0;
+
+    for (i = 0; i < ARRAY_SIZE(speeds); i++) {
+        if (speeds[i].mask & speedmask) {
+            pos += snprintf(dest + pos, size - pos, "%s%s",
+                            pos ? "+" : "",
+                            speeds[i].name);
+        }
+    }
+}
+
 int usb_device_attach(USBDevice *dev)
 {
     USBBus *bus = usb_bus_from_device(dev);
     USBPort *port = dev->port;
+    char devspeed[32], portspeed[32];
 
     assert(port != NULL);
     assert(!dev->attached);
-    trace_usb_port_attach(bus->busnr, port->path);
+    usb_mask_to_str(devspeed, sizeof(devspeed), dev->speedmask);
+    usb_mask_to_str(portspeed, sizeof(portspeed), port->speedmask);
+    trace_usb_port_attach(bus->busnr, port->path,
+                          devspeed, portspeed);
 
     if (!(port->speedmask & dev->speedmask)) {
-        error_report("Warning: speed mismatch trying to attach "
-                     "usb device %s to bus %s",
-                     dev->product_desc, bus->qbus.name);
+        error_report("Warning: speed mismatch trying to attach"
+                     " usb device \"%s\" (%s speed)"
+                     " to bus \"%s\", port \"%s\" (%s speed)",
+                     dev->product_desc, devspeed,
+                     bus->qbus.name, port->path, portspeed);
         return -1;
     }
 

hw/usb/desc.c

@@ -522,8 +522,6 @@ void usb_desc_attach(USBDevice *dev)
     } else if (desc->full && (dev->port->speedmask & USB_SPEED_MASK_FULL)) {
         dev->speed = USB_SPEED_FULL;
     } else {
-        fprintf(stderr, "usb: port/device speed mismatch for \"%s\"\n",
-                usb_device_get_product_desc(dev));
         return;
     }
     usb_desc_setdefaults(dev);

hw/usb/hcd-ehci.c

@@ -586,17 +586,23 @@ static EHCIPacket *ehci_alloc_packet(EHCIQueue *q)
 
 static void ehci_free_packet(EHCIPacket *p)
 {
-    if (p->async == EHCI_ASYNC_FINISHED) {
+    if (p->async == EHCI_ASYNC_FINISHED &&
+            !(p->queue->qh.token & QTD_TOKEN_HALT)) {
         ehci_writeback_async_complete_packet(p);
         return;
     }
     trace_usb_ehci_packet_action(p->queue, p, "free");
-    if (p->async == EHCI_ASYNC_INITIALIZED) {
-        usb_packet_unmap(&p->packet, &p->sgl);
-        qemu_sglist_destroy(&p->sgl);
-    }
     if (p->async == EHCI_ASYNC_INFLIGHT) {
         usb_cancel_packet(&p->packet);
+    }
+    if (p->async == EHCI_ASYNC_FINISHED &&
+            p->packet.status == USB_RET_SUCCESS) {
+        fprintf(stderr,
+                "EHCI: Dropping completed packet from halted %s ep %02X\n",
+                (p->pid == USB_TOKEN_IN) ? "in" : "out",
+                get_field(p->queue->qh.epchar, QH_EPCHAR_EP));
+    }
+    if (p->async != EHCI_ASYNC_NONE) {
         usb_packet_unmap(&p->packet, &p->sgl);
         qemu_sglist_destroy(&p->sgl);
     }

hw/usb/hcd-xhci.c

@@ -326,7 +326,6 @@ typedef enum EPType {
 } EPType;
 
 typedef struct XHCIRing {
-    dma_addr_t base;
     dma_addr_t dequeue;
     bool ccs;
 } XHCIRing;
@@ -943,7 +942,6 @@ static void xhci_event(XHCIState *xhci, XHCIEvent *event, int v)
 static void xhci_ring_init(XHCIState *xhci, XHCIRing *ring,
                            dma_addr_t base)
 {
-    ring->base = base;
     ring->dequeue = base;
     ring->ccs = 1;
 }
@@ -1948,7 +1946,7 @@ static void xhci_kick_ep(XHCIState *xhci, unsigned int slotid,
         streamid = 0;
         xhci_set_ep_state(xhci, epctx, NULL, EP_RUNNING);
     }
-    assert(ring->base != 0);
+    assert(ring->dequeue != 0);
 
     while (1) {
         XHCITransfer *xfer = &epctx->transfers[epctx->next_xfer];

hw/usb/host-libusb.c

@@ -236,8 +236,6 @@ static int usb_host_init(void)
 
 static int usb_host_get_port(libusb_device *dev, char *port, size_t len)
 {
-#if defined(LIBUSBX_API_VERSION) && (LIBUSBX_API_VERSION >= 0x010000ff)
-    /* have libusb_get_port_path() */
     uint8_t path[7];
     size_t off;
     int rc, i;
@@ -251,9 +249,6 @@ static int usb_host_get_port(libusb_device *dev, char *port, size_t len)
         off += snprintf(port+off, len-off, ".%d", path[i]);
     }
     return off;
-#else
-    return snprintf(port, len, "FIXME");
-#endif
 }
 
 static void usb_host_libusb_error(const char *func, int rc)

trace-events

@@ -277,7 +277,7 @@ usb_packet_state_fault(int bus, const char *port, int ep, void *p, const char *o
 
 # 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"
+usb_port_attach(int bus, const char *port, const char *devspeed, const char *portspeed) "bus %d, port %s, devspeed %s, portspeed %s"
 usb_port_detach(int bus, const char *port) "bus %d, port %s"
 usb_port_release(int bus, const char *port) "bus %d, port %s"