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xhci: add helper to get the endpoint state of a endpoint context

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define GET_EP_CTX_STATE() macro to get the endpoint state from a
pointer to a le32 enpoint context structure

No functional changes

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mathias Nyman 2016-11-11 15:13:28 +02:00 committed by Greg Kroah-Hartman
parent 3f1dae6b19
commit 5071e6b279
3 changed files with 9 additions and 14 deletions
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18
drivers/usb/host/xhci-ring.c
View File

@ -1000,8 +1000,7 @@ static void xhci_handle_cmd_set_deq(struct xhci_hcd *xhci, int slot_id,
break;
case COMP_CTX_STATE:
xhci_warn(xhci, "WARN Set TR Deq Ptr cmd failed due to incorrect slot or ep state.\n");
ep_state = le32_to_cpu(ep_ctx->ep_info);
ep_state &= EP_STATE_MASK;
ep_state = GET_EP_CTX_STATE(ep_ctx);
slot_state = le32_to_cpu(slot_ctx->dev_state);
slot_state = GET_SLOT_STATE(slot_state);
xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb,
@ -1794,8 +1793,7 @@ static int xhci_requires_manual_halt_cleanup(struct xhci_hcd *xhci,
* endpoint anyway. Check if a babble halted the
* endpoint.
*/
if ((ep_ctx->ep_info & cpu_to_le32(EP_STATE_MASK)) ==
cpu_to_le32(EP_STATE_HALTED))
if (GET_EP_CTX_STATE(ep_ctx) == EP_STATE_HALTED)
return 1;
return 0;
@ -2244,9 +2242,7 @@ static int handle_tx_event(struct xhci_hcd *xhci,
ep = &xdev->eps[ep_index];
ep_ring = xhci_dma_to_transfer_ring(ep, le64_to_cpu(event->buffer));
ep_ctx = xhci_get_ep_ctx(xhci, xdev->out_ctx, ep_index);
if (!ep_ring ||
(le32_to_cpu(ep_ctx->ep_info) & EP_STATE_MASK) ==
EP_STATE_DISABLED) {
if (!ep_ring || GET_EP_CTX_STATE(ep_ctx) == EP_STATE_DISABLED) {
xhci_err(xhci, "ERROR Transfer event for disabled endpoint "
"or incorrect stream ring\n");
xhci_err(xhci, "@%016llx %08x %08x %08x %08x\n",
@ -2807,8 +2803,7 @@ static int prepare_transfer(struct xhci_hcd *xhci,
return -EINVAL;
}
ret = prepare_ring(xhci, ep_ring,
le32_to_cpu(ep_ctx->ep_info) & EP_STATE_MASK,
ret = prepare_ring(xhci, ep_ring, GET_EP_CTX_STATE(ep_ctx),
num_trbs, mem_flags);
if (ret)
return ret;
@ -3704,7 +3699,7 @@ int xhci_queue_isoc_tx_prepare(struct xhci_hcd *xhci, gfp_t mem_flags,
/* Check the ring to guarantee there is enough room for the whole urb.
* Do not insert any td of the urb to the ring if the check failed.
*/
ret = prepare_ring(xhci, ep_ring, le32_to_cpu(ep_ctx->ep_info) & EP_STATE_MASK,
ret = prepare_ring(xhci, ep_ring, GET_EP_CTX_STATE(ep_ctx),
num_trbs, mem_flags);
if (ret)
return ret;
@ -3717,8 +3712,7 @@ int xhci_queue_isoc_tx_prepare(struct xhci_hcd *xhci, gfp_t mem_flags,
/* Calculate the start frame and put it in urb->start_frame. */
if (HCC_CFC(xhci->hcc_params) && !list_empty(&ep_ring->td_list)) {
if ((le32_to_cpu(ep_ctx->ep_info) & EP_STATE_MASK) ==
EP_STATE_RUNNING) {
if (GET_EP_CTX_STATE(ep_ctx) == EP_STATE_RUNNING) {
urb->start_frame = xep->next_frame_id;
goto skip_start_over;
}

3
drivers/usb/host/xhci.c
View File

@ -1650,8 +1650,7 @@ int xhci_drop_endpoint(struct usb_hcd *hcd, struct usb_device *udev,
/* If the HC already knows the endpoint is disabled,
* or the HCD has noted it is disabled, ignore this request
*/
if (((ep_ctx->ep_info & cpu_to_le32(EP_STATE_MASK)) ==
cpu_to_le32(EP_STATE_DISABLED)) ||
if ((GET_EP_CTX_STATE(ep_ctx) == EP_STATE_DISABLED) ||
le32_to_cpu(ctrl_ctx->drop_flags) &
xhci_get_endpoint_flag(&ep->desc)) {
/* Do not warn when called after a usb_device_reset */

2
drivers/usb/host/xhci.h
View File

@ -709,6 +709,8 @@ struct xhci_ep_ctx {
#define EP_STATE_HALTED 2
#define EP_STATE_STOPPED 3
#define EP_STATE_ERROR 4
#define GET_EP_CTX_STATE(ctx) (le32_to_cpu((ctx)->ep_info) & EP_STATE_MASK)
/* Mult - Max number of burtst within an interval, in EP companion desc. */
#define EP_MULT(p) (((p) & 0x3) << 8)
#define CTX_TO_EP_MULT(p) (((p) >> 8) & 0x3)