mirror of https://github.com/OpenIPC/firmware.git
46 lines
1.4 KiB
Diff
46 lines
1.4 KiB
Diff
--- linux-4.9.37/include/uapi/linux/usb/ch9.h 2017-07-12 16:42:41.000000000 +0300
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+++ linux-4.9.y/include/uapi/linux/usb/ch9.h 2021-06-07 13:01:34.000000000 +0300
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@@ -423,6 +423,14 @@
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#define USB_ENDPOINT_XFER_INT 3
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#define USB_ENDPOINT_MAX_ADJUSTABLE 0x80
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+#define USB_EP_MAXP_MULT_SHIFT 11
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+#define USB_EP_MAXP_MULT_MASK (3 << USB_EP_MAXP_MULT_SHIFT)
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+#define USB_EP_MAXP_MULT(m) \
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+ (((m) & USB_EP_MAXP_MULT_MASK) >> USB_EP_MAXP_MULT_SHIFT)
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+
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+
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+#define USB_ENDPOINT_MAXP_MASK 0x07ff
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+
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/* The USB 3.0 spec redefines bits 5:4 of bmAttributes as interrupt ep type. */
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#define USB_ENDPOINT_INTRTYPE 0x30
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#define USB_ENDPOINT_INTR_PERIODIC (0 << 4)
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@@ -623,11 +631,25 @@
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* usb_endpoint_maxp - get endpoint's max packet size
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* @epd: endpoint to be checked
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*
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- * Returns @epd's max packet
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+ * Returns @epd's max packet bits [10:0]
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*/
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static inline int usb_endpoint_maxp(const struct usb_endpoint_descriptor *epd)
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{
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- return __le16_to_cpu(epd->wMaxPacketSize);
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+ return __le16_to_cpu(epd->wMaxPacketSize) & USB_ENDPOINT_MAXP_MASK;
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+}
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+
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+/**
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+ * usb_endpoint_maxp_mult - get endpoint's transactional opportunities
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+ * @epd: endpoint to be checked
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+ *
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+ * Return @epd's wMaxPacketSize[12:11] + 1
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+ */
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+static inline int
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+usb_endpoint_maxp_mult(const struct usb_endpoint_descriptor *epd)
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+{
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+ int maxp = __le16_to_cpu(epd->wMaxPacketSize);
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+
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+ return USB_EP_MAXP_MULT(maxp) + 1;
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}
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static inline int usb_endpoint_interrupt_type(
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