[Mod] 新增忽略 patch 文件

.gitignore

@@ -9,6 +9,7 @@ compile_commands.json
 *.swo
 *.bak
 *.rej
+*.patch
 
 .tags*
 cscope.*

linux_5.10/drivers/usb/gadget/composite.c

@@ -664,6 +664,35 @@ static int bos_desc(struct usb_composite_dev *cdev)
 	struct usb_ext_cap_descriptor	*usb_ext;
 	struct usb_dcd_config_params	dcd_config_params;
 	struct usb_bos_descriptor	*bos = cdev->req->buf;
+#if defined (CONFIG_GAOYANG)
+	/* WCID20 device capability descriptor */
+	#define	USB_CAP_TYPE_WCID		5
+	#define USB_CAP_WCID_SIZE		0x1C
+	#define WINUSB20_WCID_VENDOR_CODE	0x00
+	#define WINUSB20_WCID_DESC_SET_SIZE 	162
+
+	struct usb_cap_wcid20_descriptor {
+		__u8   bLength;
+		__u8   bDescriptorType;
+		__u8   bDevCapabilityType;
+		__u8   bReserved ;
+		__u8   bPlatformCapabilityUUID_16[16];
+		__u32  dwWindowsVersion;
+		__le32 wDescriptorSetTotalLength;
+		__u8   bVendorCode;
+		__u8   bAltEnumCode;
+	} __attribute__((packed));
+
+	char winusb20_wcidbos_uuid[] = {
+		0xdf, 0x60, 0xdd, 0xd8, 0x89, 0x45, 0xc7, 0x4c,
+		0x9c, 0xd2, 0x65, 0x9d, 0x9e, 0x64, 0x8a, 0x9f,
+	};
+
+	uint32_t winusb20_wcidbos_version = 0x06030000;
+
+	struct usb_cap_wcid20_descriptor *usb_cap_wcid;
+
+#endif // defined (CONFIG_GAOYANG)
 	unsigned int			besl = 0;
 
 	bos->bLength = USB_DT_BOS_SIZE;
@@ -694,7 +723,6 @@ static int bos_desc(struct usb_composite_dev *cdev)
 	if (dcd_config_params.besl_deep != USB_DEFAULT_BESL_UNSPECIFIED)
 		besl |= USB_BESL_DEEP_VALID |
 			USB_SET_BESL_DEEP(dcd_config_params.besl_deep);
-
 	/*
 	 * A SuperSpeed device shall include the USB2.0 extension descriptor
 	 * and shall support LPM when operating in USB2.0 HS mode.
@@ -708,6 +736,19 @@ static int bos_desc(struct usb_composite_dev *cdev)
 	usb_ext->bmAttributes = cpu_to_le32(USB_LPM_SUPPORT |
 					    USB_BESL_SUPPORT | besl);
 
+#if defined (CONFIG_GAOYANG)
+	usb_cap_wcid = cdev->req->buf + le16_to_cpu(bos->wTotalLength);
+	le16_add_cpu(&bos->wTotalLength, USB_CAP_WCID_SIZE);
+	bos->bNumDeviceCaps++;
+
+	usb_cap_wcid->bLength                   = USB_CAP_WCID_SIZE;
+	usb_cap_wcid->bDescriptorType           = USB_DT_DEVICE_CAPABILITY;
+	usb_cap_wcid->bDevCapabilityType        = USB_CAP_TYPE_WCID;
+	usb_cap_wcid->dwWindowsVersion          = winusb20_wcidbos_version;
+	usb_cap_wcid->wDescriptorSetTotalLength = cpu_to_le32(WINUSB20_WCID_DESC_SET_SIZE);
+	usb_cap_wcid->bVendorCode               = WINUSB20_WCID_VENDOR_CODE;
+	memcpy(usb_cap_wcid->bPlatformCapabilityUUID_16, winusb20_wcidbos_uuid, sizeof(winusb20_wcidbos_uuid));
+#endif // defined (CONFIG_GAOYANG)
 	/*
 	 * The Superspeed USB Capability descriptor shall be implemented by all
 	 * SuperSpeed devices.