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Avoid evaluating the XHCI control endpoint context.

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The XHCI specification says that the XHCI controller should detect
reception of the USB device descriptors, and automatically update
the max packet size in the control endpoint context.

Differential Revision:	https://reviews.freebsd.org/D26104
Reviewed by:	kp@
MFC after:	1 week
Sponsored by:	Mellanox Technologies
This commit is contained in:
Hans Petter Selasky 2020-08-19 11:50:12 +00:00
parent c3b0de2eae
commit 68128138a5
2 changed files with 3 additions and 15 deletions
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17
sys/dev/usb/controller/xhci.c
View File

@ -2398,8 +2398,6 @@ xhci_configure_endpoint(struct usb_device *udev,
/* store endpoint mode */
pepext->trb_ep_mode = ep_mode;
/* store bMaxPacketSize for control endpoints */
pepext->trb_ep_maxp = edesc->wMaxPacketSize[0];
usb_pc_cpu_flush(pepext->page_cache);
if (ep_mode == USB_EP_MODE_STREAMS) {
@ -2929,17 +2927,6 @@ xhci_transfer_insert(struct usb_xfer *xfer)
return (USB_ERR_NOMEM);
}
/* check if bMaxPacketSize changed */
if (xfer->flags_int.control_xfr != 0 &&
pepext->trb_ep_maxp != xfer->endpoint->edesc->wMaxPacketSize[0]) {
DPRINTFN(8, "Reconfigure control endpoint\n");
/* force driver to reconfigure endpoint */
pepext->trb_halted = 1;
pepext->trb_running = 0;
}
/* check for stopped condition, after putting transfer on interrupt queue */
if (pepext->trb_running == 0) {
struct xhci_softc *sc = XHCI_BUS2SC(xfer->xroot->bus);
@ -3917,8 +3904,10 @@ xhci_configure_reset_endpoint(struct usb_xfer *xfer)
if (!(sc->sc_hw.devs[index].ep_configured & mask)) {
sc->sc_hw.devs[index].ep_configured |= mask;
err = xhci_cmd_configure_ep(sc, buf_inp.physaddr, 0, index);
} else {
} else if (epno != 1) {
err = xhci_cmd_evaluate_ctx(sc, buf_inp.physaddr, index);
} else {
err = 0;
}
if (err != 0) {

1
sys/dev/usb/controller/xhci.h
View File

@ -393,7 +393,6 @@ struct xhci_endpoint_ext {
uint8_t trb_halted;
uint8_t trb_running;
uint8_t trb_ep_mode;
uint8_t trb_ep_maxp;
};
enum {