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drivers: usb: xhci: set HID bit in streaming endpoint contexts #6461

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merged 1 commit into from
Nov 11, 2024
Merged

drivers: usb: xhci: set HID bit in streaming endpoint contexts #6461

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8 changes: 8 additions & 0 deletions drivers/usb/host/xhci-mem.c
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Original file line number Diff line number Diff line change
Expand Up @@ -716,6 +716,14 @@ void xhci_setup_streams_ep_input_ctx(struct xhci_hcd *xhci,
ep_ctx->ep_info &= cpu_to_le32(~EP_MAXPSTREAMS_MASK);
ep_ctx->ep_info |= cpu_to_le32(EP_MAXPSTREAMS(max_primary_streams)
| EP_HAS_LSA);

/*
* Set Host Initiated Data Move Disable to always defer stream
* selection to the device. xHC implementations may treat this
* field as "don't care, forced to 1" anyway - xHCI 1.2 s4.12.1.
*/
ep_ctx->ep_info2 |= EP_HID;

ep_ctx->deq = cpu_to_le64(stream_info->ctx_array_dma);
}

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2 changes: 2 additions & 0 deletions drivers/usb/host/xhci.h
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Expand Up @@ -492,6 +492,8 @@ struct xhci_ep_ctx {
#define CTX_TO_EP_MAXPSTREAMS(p) (((p) & EP_MAXPSTREAMS_MASK) >> 10)
/* Endpoint is set up with a Linear Stream Array (vs. Secondary Stream Array) */
#define EP_HAS_LSA (1 << 15)
/* Host initiated data move disable in info2 */
#define EP_HID (1 << 7)
/* hosts with LEC=1 use bits 31:24 as ESIT high bits. */
#define CTX_TO_MAX_ESIT_PAYLOAD_HI(p) (((p) >> 24) & 0xff)

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