diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.19/950-0655-xhci-implement-xhci_fixup_endpoint-for-interval-adju.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.19/950-0655-xhci-implement-xhci_fixup_endpoint-for-interval-adju.patch | 129 |
1 files changed, 0 insertions, 129 deletions
diff --git a/target/linux/brcm2708/patches-4.19/950-0655-xhci-implement-xhci_fixup_endpoint-for-interval-adju.patch b/target/linux/brcm2708/patches-4.19/950-0655-xhci-implement-xhci_fixup_endpoint-for-interval-adju.patch deleted file mode 100644 index f816055d4e..0000000000 --- a/target/linux/brcm2708/patches-4.19/950-0655-xhci-implement-xhci_fixup_endpoint-for-interval-adju.patch +++ /dev/null @@ -1,129 +0,0 @@ -From 44943168f36c02b224a963c805a100f47c58a9c6 Mon Sep 17 00:00:00 2001 -From: Jonathan Bell <jonathan@raspberrypi.org> -Date: Tue, 11 Jun 2019 11:33:39 +0100 -Subject: [PATCH 655/773] xhci: implement xhci_fixup_endpoint for interval - adjustments - -Must be called in a non-atomic context, after the endpoint -has been registered with the hardware via xhci_add_endpoint -and before the first URB is submitted for the endpoint. - -Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org> ---- - drivers/usb/host/xhci.c | 98 +++++++++++++++++++++++++++++++++++++++++ - 1 file changed, 98 insertions(+) - ---- a/drivers/usb/host/xhci.c -+++ b/drivers/usb/host/xhci.c -@@ -1416,6 +1416,103 @@ command_cleanup: - } - - /* -+ * RPI: Fixup endpoint intervals when requested -+ * - Check interval versus the (cached) endpoint context -+ * - set the endpoint interval to the new value -+ * - force an endpoint configure command -+ * XXX: bandwidth is not recalculated. We should probably do that. -+ */ -+static void xhci_fixup_endpoint(struct usb_hcd *hcd, struct usb_device *udev, -+ struct usb_host_endpoint *ep, int interval) -+{ -+ struct xhci_hcd *xhci; -+ struct xhci_ep_ctx *ep_ctx_out, *ep_ctx_in; -+ struct xhci_command *command; -+ struct xhci_input_control_ctx *ctrl_ctx; -+ struct xhci_virt_device *vdev; -+ int xhci_interval; -+ int ret; -+ int ep_index; -+ unsigned long flags; -+ u32 ep_info_tmp; -+ -+ xhci = hcd_to_xhci(hcd); -+ ep_index = xhci_get_endpoint_index(&ep->desc); -+ -+ /* FS/LS interval translations */ -+ if ((udev->speed == USB_SPEED_FULL || -+ udev->speed == USB_SPEED_LOW)) -+ interval *= 8; -+ -+ mutex_lock(&xhci->mutex); -+ -+ spin_lock_irqsave(&xhci->lock, flags); -+ -+ vdev = xhci->devs[udev->slot_id]; -+ /* Get context-derived endpoint interval */ -+ ep_ctx_out = xhci_get_ep_ctx(xhci, vdev->out_ctx, ep_index); -+ ep_ctx_in = xhci_get_ep_ctx(xhci, vdev->in_ctx, ep_index); -+ xhci_interval = EP_INTERVAL_TO_UFRAMES(le32_to_cpu(ep_ctx_out->ep_info)); -+ -+ if (interval == xhci_interval) { -+ spin_unlock_irqrestore(&xhci->lock, flags); -+ mutex_unlock(&xhci->mutex); -+ return; -+ } -+ -+ xhci_dbg(xhci, "Fixup interval=%d xhci_interval=%d\n", -+ interval, xhci_interval); -+ command = xhci_alloc_command_with_ctx(xhci, true, GFP_ATOMIC); -+ if (!command) { -+ /* Failure here is benign, poll at the original rate */ -+ spin_unlock_irqrestore(&xhci->lock, flags); -+ mutex_unlock(&xhci->mutex); -+ return; -+ } -+ -+ /* xHCI uses exponents for intervals... */ -+ xhci_interval = fls(interval) - 1; -+ xhci_interval = clamp_val(xhci_interval, 3, 10); -+ ep_info_tmp = le32_to_cpu(ep_ctx_out->ep_info); -+ ep_info_tmp &= ~EP_INTERVAL(255); -+ ep_info_tmp |= EP_INTERVAL(xhci_interval); -+ -+ /* Keep the endpoint context up-to-date while issuing the command. */ -+ xhci_endpoint_copy(xhci, vdev->in_ctx, -+ vdev->out_ctx, ep_index); -+ ep_ctx_in->ep_info = cpu_to_le32(ep_info_tmp); -+ -+ /* -+ * We need to drop the lock, so take an explicit copy -+ * of the ep context. -+ */ -+ xhci_endpoint_copy(xhci, command->in_ctx, vdev->in_ctx, ep_index); -+ -+ ctrl_ctx = xhci_get_input_control_ctx(command->in_ctx); -+ if (!ctrl_ctx) { -+ xhci_warn(xhci, -+ "%s: Could not get input context, bad type.\n", -+ __func__); -+ spin_unlock_irqrestore(&xhci->lock, flags); -+ xhci_free_command(xhci, command); -+ mutex_unlock(&xhci->mutex); -+ return; -+ } -+ ctrl_ctx->add_flags = xhci_get_endpoint_flag_from_index(ep_index); -+ ctrl_ctx->drop_flags = 0; -+ -+ spin_unlock_irqrestore(&xhci->lock, flags); -+ -+ ret = xhci_configure_endpoint(xhci, udev, command, -+ false, false); -+ if (ret) -+ xhci_warn(xhci, "%s: Configure endpoint failed: %d\n", -+ __func__, ret); -+ xhci_free_command(xhci, command); -+ mutex_unlock(&xhci->mutex); -+} -+ -+/* - * non-error returns are a promise to giveback() the urb later - * we drop ownership so next owner (or urb unlink) can get it - */ -@@ -5180,6 +5277,7 @@ static const struct hc_driver xhci_hc_dr - .endpoint_reset = xhci_endpoint_reset, - .check_bandwidth = xhci_check_bandwidth, - .reset_bandwidth = xhci_reset_bandwidth, -+ .fixup_endpoint = xhci_fixup_endpoint, - .address_device = xhci_address_device, - .enable_device = xhci_enable_device, - .update_hub_device = xhci_update_hub_device, |