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xhci: Add xhci_epid_to_usbep helper function 

And use it instead of prying the USBEndpoint out of the packet struct
in various places.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
master
Hans de Goede 2013-09-17 21:44:50 +02:00 committed by Gerd Hoffmann
parent 4c5d82ecf1
commit 518ad5f2a0
1 changed files with 22 additions and 10 deletions
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32
hw/usb/hcd-xhci.c
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@ -509,6 +509,8 @@ static TRBCCode xhci_disable_ep(XHCIState *xhci, unsigned int slotid,
unsigned int epid);
static void xhci_event(XHCIState *xhci, XHCIEvent *event, int v);
static void xhci_write_event(XHCIState *xhci, XHCIEvent *event, int v);
static USBEndpoint *xhci_epid_to_usbep(XHCIState *xhci,
unsigned int slotid, unsigned int epid);
static const char *TRBType_names[] = {
[TRB_RESERVED] = "TRB_RESERVED",
@ -1361,13 +1363,12 @@ static int xhci_ep_nuke_xfers(XHCIState *xhci, unsigned int slotid,
xferi = epctx->next_xfer;
for (i = 0; i < TD_QUEUE; i++) {
if (epctx->transfers[xferi].packet.ep) {
ep = epctx->transfers[xferi].packet.ep;
}
killed += xhci_ep_nuke_one_xfer(&epctx->transfers[xferi]);
epctx->transfers[xferi].packet.ep = NULL;
xferi = (xferi + 1) % TD_QUEUE;
}
ep = xhci_epid_to_usbep(xhci, slotid, epid);
if (ep) {
usb_device_ep_stopped(ep->dev, ep);
}
@ -1699,7 +1700,6 @@ static int xhci_submit(XHCIState *xhci, XHCITransfer *xfer,
static int xhci_setup_packet(XHCITransfer *xfer)
{
XHCIState *xhci = xfer->xhci;
USBDevice *dev;
USBEndpoint *ep;
int dir;
@ -1707,15 +1707,13 @@ static int xhci_setup_packet(XHCITransfer *xfer)
if (xfer->packet.ep) {
ep = xfer->packet.ep;
dev = ep->dev;
} else {
if (!xhci->slots[xfer->slotid-1].uport) {
ep = xhci_epid_to_usbep(xhci, xfer->slotid, xfer->epid);
if (!ep) {
fprintf(stderr, "xhci: slot %d has no device\n",
xfer->slotid);
return -1;
}
dev = xhci->slots[xfer->slotid-1].uport->dev;
ep = usb_ep_get(dev, dir, xfer->epid >> 1);
}
xhci_xfer_create_sgl(xfer, dir == USB_TOKEN_IN); /* Also sets int_req */
@ -1723,7 +1721,7 @@ static int xhci_setup_packet(XHCITransfer *xfer)
xfer->trbs[0].addr, false, xfer->int_req);
usb_packet_map(&xfer->packet, &xfer->sgl);
DPRINTF("xhci: setup packet pid 0x%x addr %d ep %d\n",
xfer->packet.pid, dev->addr, ep->nr);
xfer->packet.pid, ep->dev->addr, ep->nr);
return 0;
}
@ -2075,7 +2073,6 @@ static void xhci_kick_ep(XHCIState *xhci, unsigned int slotid,
} else {
if (xhci_fire_transfer(xhci, xfer, epctx) >= 0) {
epctx->next_xfer = (epctx->next_xfer + 1) % TD_QUEUE;
ep = xfer->packet.ep;
} else {
if (!xfer->timed_xfer) {
fprintf(stderr, "xhci: error firing data transfer\n");
@ -2092,6 +2089,8 @@ static void xhci_kick_ep(XHCIState *xhci, unsigned int slotid,
break;
}
}
ep = xhci_epid_to_usbep(xhci, slotid, epid);
if (ep) {
usb_device_flush_ep_queue(ep->dev, ep);
}
@ -3321,6 +3320,19 @@ static int xhci_find_epid(USBEndpoint *ep)
}
}
static USBEndpoint *xhci_epid_to_usbep(XHCIState *xhci,
unsigned int slotid, unsigned int epid)
{
assert(slotid >= 1 && slotid <= xhci->numslots);
if (!xhci->slots[slotid - 1].uport) {
return NULL;
}
return usb_ep_get(xhci->slots[slotid - 1].uport->dev,
(epid & 1) ? USB_TOKEN_IN : USB_TOKEN_OUT, epid >> 1);
}
static void xhci_wakeup_endpoint(USBBus *bus, USBEndpoint *ep,
unsigned int stream)
{