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@@ -0,0 +1,330 @@
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+/*
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+ * Copyright (c) 2024, sakumisu
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+ *
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+ * SPDX-License-Identifier: Apache-2.0
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+ */
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+#include "usbd_core.h"
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+#include "usbd_hid.h"
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+
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+/*!< endpoint address */
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+#define HID_INT_EP 0x81
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+#define HID_INT_EP_SIZE 4
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+#define HID_INT_EP_INTERVAL 1
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+
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+#define USBD_VID 0xffff
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+#define USBD_PID 0xffff
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+#define USBD_MAX_POWER 100
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+#define USBD_LANGID_STRING 1033
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+
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+/*!< config descriptor size */
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+#define USB_HID_CONFIG_DESC_SIZ 34
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+/*!< report descriptor size */
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+#define HID_MOUSE_REPORT_DESC_SIZE 74
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+
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+/*!< global descriptor */
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+const uint8_t hid_descriptor[] = {
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+ USB_DEVICE_DESCRIPTOR_INIT(USB_2_0, 0x00, 0x00, 0x00, USBD_VID, USBD_PID, 0x0002, 0x01),
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+ USB_CONFIG_DESCRIPTOR_INIT(USB_HID_CONFIG_DESC_SIZ, 0x01, 0x01, USB_CONFIG_REMOTE_WAKEUP | USB_CONFIG_SELF_POWERED, USBD_MAX_POWER),
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+
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+ /************** Descriptor of Joystick Mouse interface ****************/
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+ /* 09 */
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+ 0x09, /* bLength: Interface Descriptor size */
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+ USB_DESCRIPTOR_TYPE_INTERFACE, /* bDescriptorType: Interface descriptor type */
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+ 0x00, /* bInterfaceNumber: Number of Interface */
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+ 0x00, /* bAlternateSetting: Alternate setting */
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+ 0x01, /* bNumEndpoints */
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+ 0x03, /* bInterfaceClass: HID */
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+ 0x01, /* bInterfaceSubClass : 1=BOOT, 0=no boot */
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+ 0x02, /* nInterfaceProtocol : 0=none, 1=keyboard, 2=mouse */
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+ 0, /* iInterface: Index of string descriptor */
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+ /******************** Descriptor of Joystick Mouse HID ********************/
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+ /* 18 */
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+ 0x09, /* bLength: HID Descriptor size */
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+ HID_DESCRIPTOR_TYPE_HID, /* bDescriptorType: HID */
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+ 0x11, /* bcdHID: HID Class Spec release number */
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+ 0x01,
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+ 0x00, /* bCountryCode: Hardware target country */
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+ 0x01, /* bNumDescriptors: Number of HID class descriptors to follow */
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+ 0x22, /* bDescriptorType */
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+ HID_MOUSE_REPORT_DESC_SIZE, /* wItemLength: Total length of Report descriptor */
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+ 0x00,
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+ /******************** Descriptor of Mouse endpoint ********************/
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+ /* 27 */
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+ 0x07, /* bLength: Endpoint Descriptor size */
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+ USB_DESCRIPTOR_TYPE_ENDPOINT, /* bDescriptorType: */
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+ HID_INT_EP, /* bEndpointAddress: Endpoint Address (IN) */
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+ 0x03, /* bmAttributes: Interrupt endpoint */
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+ HID_INT_EP_SIZE, /* wMaxPacketSize: 4 Byte max */
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+ 0x00,
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+ HID_INT_EP_INTERVAL, /* bInterval: Polling Interval */
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+ /* 34 */
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+ ///////////////////////////////////////
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+ /// string0 descriptor
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+ ///////////////////////////////////////
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+ USB_LANGID_INIT(USBD_LANGID_STRING),
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+ ///////////////////////////////////////
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+ /// string1 descriptor
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+ ///////////////////////////////////////
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+ 0x14, /* bLength */
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+ USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
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+ 'C', 0x00, /* wcChar0 */
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+ 'h', 0x00, /* wcChar1 */
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+ 'e', 0x00, /* wcChar2 */
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+ 'r', 0x00, /* wcChar3 */
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+ 'r', 0x00, /* wcChar4 */
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+ 'y', 0x00, /* wcChar5 */
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+ 'U', 0x00, /* wcChar6 */
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+ 'S', 0x00, /* wcChar7 */
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+ 'B', 0x00, /* wcChar8 */
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+ ///////////////////////////////////////
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+ /// string2 descriptor
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+ ///////////////////////////////////////
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+ 0x26, /* bLength */
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+ USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
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+ 'C', 0x00, /* wcChar0 */
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+ 'h', 0x00, /* wcChar1 */
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+ 'e', 0x00, /* wcChar2 */
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+ 'r', 0x00, /* wcChar3 */
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+ 'r', 0x00, /* wcChar4 */
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+ 'y', 0x00, /* wcChar5 */
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+ 'U', 0x00, /* wcChar6 */
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+ 'S', 0x00, /* wcChar7 */
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+ 'B', 0x00, /* wcChar8 */
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+ ' ', 0x00, /* wcChar9 */
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+ 'H', 0x00, /* wcChar10 */
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+ 'I', 0x00, /* wcChar11 */
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+ 'D', 0x00, /* wcChar12 */
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+ ' ', 0x00, /* wcChar13 */
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+ 'D', 0x00, /* wcChar14 */
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+ 'E', 0x00, /* wcChar15 */
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+ 'M', 0x00, /* wcChar16 */
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+ 'O', 0x00, /* wcChar17 */
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+ ///////////////////////////////////////
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+ /// string3 descriptor
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+ ///////////////////////////////////////
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+ 0x16, /* bLength */
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+ USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
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+ '2', 0x00, /* wcChar0 */
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+ '0', 0x00, /* wcChar1 */
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+ '2', 0x00, /* wcChar2 */
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+ '2', 0x00, /* wcChar3 */
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+ '1', 0x00, /* wcChar4 */
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+ '2', 0x00, /* wcChar5 */
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+ '3', 0x00, /* wcChar6 */
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+ '4', 0x00, /* wcChar7 */
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+ '5', 0x00, /* wcChar8 */
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+ '6', 0x00, /* wcChar9 */
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+#ifdef CONFIG_USB_HS
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+ ///////////////////////////////////////
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+ /// device qualifier descriptor
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+ ///////////////////////////////////////
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+ 0x0a,
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+ USB_DESCRIPTOR_TYPE_DEVICE_QUALIFIER,
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+ 0x00,
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+ 0x02,
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+ 0x00,
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+ 0x00,
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+ 0x00,
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+ 0x40,
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+ 0x01,
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+ 0x00,
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+#endif
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+ 0x00
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+};
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+
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+/*!< hid mouse report descriptor */
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+static const uint8_t hid_mouse_report_desc[HID_MOUSE_REPORT_DESC_SIZE] = {
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+ 0x05, 0x01, // USAGE_PAGE (Generic Desktop)
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+ 0x09, 0x02, // USAGE (Mouse)
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+ 0xA1, 0x01, // COLLECTION (Application)
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+ 0x09, 0x01, // USAGE (Pointer)
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+
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+ 0xA1, 0x00, // COLLECTION (Physical)
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+ 0x05, 0x09, // USAGE_PAGE (Button)
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+ 0x19, 0x01, // USAGE_MINIMUM (Button 1)
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+ 0x29, 0x03, // USAGE_MAXIMUM (Button 3)
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+
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+ 0x15, 0x00, // LOGICAL_MINIMUM (0)
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+ 0x25, 0x01, // LOGICAL_MAXIMUM (1)
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+ 0x95, 0x03, // REPORT_COUNT (3)
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+ 0x75, 0x01, // REPORT_SIZE (1)
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+
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+ 0x81, 0x02, // INPUT (Data,Var,Abs)
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+ 0x95, 0x01, // REPORT_COUNT (1)
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+ 0x75, 0x05, // REPORT_SIZE (5)
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+ 0x81, 0x01, // INPUT (Cnst,Var,Abs)
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+
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+ 0x05, 0x01, // USAGE_PAGE (Generic Desktop)
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+ 0x09, 0x30, // USAGE (X)
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+ 0x09, 0x31, // USAGE (Y)
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+ 0x09, 0x38,
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+
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+ 0x15, 0x81, // LOGICAL_MINIMUM (-127)
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+ 0x25, 0x7F, // LOGICAL_MAXIMUM (127)
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+ 0x75, 0x08, // REPORT_SIZE (8)
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+ 0x95, 0x03, // REPORT_COUNT (2)
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+
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+ 0x81, 0x06, // INPUT (Data,Var,Rel)
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+ 0xC0, 0x09,
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+ 0x3c, 0x05,
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+ 0xff, 0x09,
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+
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+ 0x01, 0x15,
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+ 0x00, 0x25,
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+ 0x01, 0x75,
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+ 0x01, 0x95,
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+
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+ 0x02, 0xb1,
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+ 0x22, 0x75,
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+ 0x06, 0x95,
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+ 0x01, 0xb1,
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+
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+ 0x01, 0xc0 // END_COLLECTION
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+};
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+
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+/*!< mouse report struct */
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+struct hid_mouse {
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+ uint8_t buttons;
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+ int8_t x;
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+ int8_t y;
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+ int8_t wheel;
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+};
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+
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+/*!< mouse report */
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+static USB_NOCACHE_RAM_SECTION USB_MEM_ALIGNX struct hid_mouse mouse_cfg;
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+
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+#define HID_STATE_IDLE 0
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+#define HID_STATE_BUSY 1
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+
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+/*!< hid state ! Data can be sent only when state is idle */
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+static volatile uint8_t hid_state = HID_STATE_IDLE;
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+
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+static void usbd_event_handler(uint8_t busid, uint8_t event)
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+{
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+ switch (event) {
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+ case USBD_EVENT_RESET:
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+ break;
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+ case USBD_EVENT_CONNECTED:
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+ break;
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+ case USBD_EVENT_DISCONNECTED:
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+ break;
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+ case USBD_EVENT_RESUME:
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+ break;
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+ case USBD_EVENT_SUSPEND:
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+ break;
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+ case USBD_EVENT_CONFIGURED:
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+ hid_state = HID_STATE_IDLE;
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+ break;
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+ case USBD_EVENT_SET_REMOTE_WAKEUP:
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+ break;
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+ case USBD_EVENT_CLR_REMOTE_WAKEUP:
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+ break;
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+
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+ default:
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+ break;
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+ }
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+}
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+
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+/* function ------------------------------------------------------------------*/
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+static void usbd_hid_int_callback(uint8_t busid, uint8_t ep, uint32_t nbytes)
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+{
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+ hid_state = HID_STATE_IDLE;
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+}
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+
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+/*!< endpoint call back */
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+static struct usbd_endpoint hid_in_ep = {
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+ .ep_cb = usbd_hid_int_callback,
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+ .ep_addr = HID_INT_EP
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+};
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+
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+static struct usbd_interface intf0;
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+
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+void hid_mouse_init(uint8_t busid, uint32_t reg_base)
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+{
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+ usbd_desc_register(busid, hid_descriptor);
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+ usbd_add_interface(busid, usbd_hid_init_intf(busid, &intf0, hid_mouse_report_desc, HID_MOUSE_REPORT_DESC_SIZE));
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+ usbd_add_endpoint(busid, &hid_in_ep);
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+
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+ usbd_initialize(busid, reg_base, usbd_event_handler);
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+
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+ /*!< init mouse report data */
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+ mouse_cfg.buttons = 0;
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+ mouse_cfg.wheel = 0;
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+ mouse_cfg.x = 0;
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+ mouse_cfg.y = 0;
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+}
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+
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+#define CURSOR_STEP 2U
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+#define CURSOR_WIDTH 20U
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+
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+void draw_circle(uint8_t *buf)
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+{
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+ static int32_t move_cnt = 0;
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+ static uint8_t step_x_y = 0;
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+ static int8_t x = 0, y = 0;
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+
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+ move_cnt++;
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+ if (move_cnt > CURSOR_WIDTH) {
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+ step_x_y++;
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+ step_x_y = step_x_y % 4;
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+ move_cnt = 0;
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+ }
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+ switch (step_x_y) {
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+ case 0: {
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+ y = 0;
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+ x = CURSOR_STEP;
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+
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+ } break;
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+
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+ case 1: {
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+ x = 0;
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+ y = CURSOR_STEP;
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+
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+ } break;
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+
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+ case 2: {
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+ y = 0;
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+ x = (int8_t)(-CURSOR_STEP);
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+
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+ } break;
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+
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+ case 3: {
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+ x = 0;
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+ y = (int8_t)(-CURSOR_STEP);
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+
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+ } break;
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+ }
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+
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+ buf[0] = 0;
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+ buf[1] = x;
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+ buf[2] = y;
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+ buf[3] = 0;
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+}
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+
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+/* https://cps-check.com/cn/polling-rate-check */
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+void hid_mouse_test(uint8_t busid)
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+{
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+ static uint32_t count = 1000;
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+ int ret;
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+
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+ // if (gpio_read_pin(GPIO_PIN) == 1) {
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+ // ret = usbd_send_remote_wakeup(busid);
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+ // if (ret < 0) {
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+ // return;
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+ // }
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+ // count = 5000;
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+ // }
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+
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+ while (count) {
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+ draw_circle((uint8_t *)&mouse_cfg);
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+ int ret = usbd_ep_start_write(busid, HID_INT_EP, (uint8_t *)&mouse_cfg, 4);
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+ if (ret < 0) {
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+ return;
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+ }
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+ hid_state = HID_STATE_BUSY;
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+ while (hid_state == HID_STATE_BUSY) {
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+ }
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+
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+ count--;
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+ }
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+}
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