#include "usbd_core.h" #include "usbd_hid.h" #define HID_STATE_IDLE 0 #define HID_STATE_BUSY 1 /*!< endpoint address */ #define HID_INT_EP 0x81 #define HID_INT_EP_SIZE 8 #define HID_INT_EP_INTERVAL 10 #define USBD_VID 0xffff #define USBD_PID 0xffff #define USBD_MAX_POWER 100 #define USBD_LANGID_STRING 1033 /*!< hid state ! Data can be sent only when state is idle */ uint8_t hid_state = HID_STATE_IDLE; /*!< config descriptor size */ #define USB_HID_CONFIG_DESC_SIZ 34 /*!< report descriptor size */ #define HID_MOUSE_REPORT_DESC_SIZE 74 /*!< global descriptor */ const uint8_t hid_descriptor[] = { USB_DEVICE_DESCRIPTOR_INIT(USB_2_0, 0x00, 0x00, 0x00, USBD_VID, USBD_PID, 0x0002, 0x01), USB_CONFIG_DESCRIPTOR_INIT(USB_HID_CONFIG_DESC_SIZ, 0x01, 0x01, USB_CONFIG_BUS_POWERED, USBD_MAX_POWER), /************** Descriptor of Joystick Mouse interface ****************/ /* 09 */ 0x09, /* bLength: Interface Descriptor size */ USB_DESCRIPTOR_TYPE_INTERFACE, /* bDescriptorType: Interface descriptor type */ 0x00, /* bInterfaceNumber: Number of Interface */ 0x00, /* bAlternateSetting: Alternate setting */ 0x01, /* bNumEndpoints */ 0x03, /* bInterfaceClass: HID */ 0x01, /* bInterfaceSubClass : 1=BOOT, 0=no boot */ 0x02, /* nInterfaceProtocol : 0=none, 1=keyboard, 2=mouse */ 0, /* iInterface: Index of string descriptor */ /******************** Descriptor of Joystick Mouse HID ********************/ /* 18 */ 0x09, /* bLength: HID Descriptor size */ HID_DESCRIPTOR_TYPE_HID, /* bDescriptorType: HID */ 0x11, /* bcdHID: HID Class Spec release number */ 0x01, 0x00, /* bCountryCode: Hardware target country */ 0x01, /* bNumDescriptors: Number of HID class descriptors to follow */ 0x22, /* bDescriptorType */ HID_MOUSE_REPORT_DESC_SIZE, /* wItemLength: Total length of Report descriptor */ 0x00, /******************** Descriptor of Mouse endpoint ********************/ /* 27 */ 0x07, /* bLength: Endpoint Descriptor size */ USB_DESCRIPTOR_TYPE_ENDPOINT, /* bDescriptorType: */ HID_INT_EP, /* bEndpointAddress: Endpoint Address (IN) */ 0x03, /* bmAttributes: Interrupt endpoint */ HID_INT_EP_SIZE, /* wMaxPacketSize: 4 Byte max */ 0x00, HID_INT_EP_INTERVAL, /* bInterval: Polling Interval */ /* 34 */ /////////////////////////////////////// /// string0 descriptor /////////////////////////////////////// USB_LANGID_INIT(USBD_LANGID_STRING), /////////////////////////////////////// /// string1 descriptor /////////////////////////////////////// 0x14, /* bLength */ USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */ 'C', 0x00, /* wcChar0 */ 'h', 0x00, /* wcChar1 */ 'e', 0x00, /* wcChar2 */ 'r', 0x00, /* wcChar3 */ 'r', 0x00, /* wcChar4 */ 'y', 0x00, /* wcChar5 */ 'U', 0x00, /* wcChar6 */ 'S', 0x00, /* wcChar7 */ 'B', 0x00, /* wcChar8 */ /////////////////////////////////////// /// string2 descriptor /////////////////////////////////////// 0x26, /* bLength */ USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */ 'C', 0x00, /* wcChar0 */ 'h', 0x00, /* wcChar1 */ 'e', 0x00, /* wcChar2 */ 'r', 0x00, /* wcChar3 */ 'r', 0x00, /* wcChar4 */ 'y', 0x00, /* wcChar5 */ 'U', 0x00, /* wcChar6 */ 'S', 0x00, /* wcChar7 */ 'B', 0x00, /* wcChar8 */ ' ', 0x00, /* wcChar9 */ 'H', 0x00, /* wcChar10 */ 'I', 0x00, /* wcChar11 */ 'D', 0x00, /* wcChar12 */ ' ', 0x00, /* wcChar13 */ 'D', 0x00, /* wcChar14 */ 'E', 0x00, /* wcChar15 */ 'M', 0x00, /* wcChar16 */ 'O', 0x00, /* wcChar17 */ /////////////////////////////////////// /// string3 descriptor /////////////////////////////////////// 0x16, /* bLength */ USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */ '2', 0x00, /* wcChar0 */ '0', 0x00, /* wcChar1 */ '2', 0x00, /* wcChar2 */ '2', 0x00, /* wcChar3 */ '1', 0x00, /* wcChar4 */ '2', 0x00, /* wcChar5 */ '3', 0x00, /* wcChar6 */ '4', 0x00, /* wcChar7 */ '5', 0x00, /* wcChar8 */ '6', 0x00, /* wcChar9 */ #ifdef CONFIG_USB_HS /////////////////////////////////////// /// device qualifier descriptor /////////////////////////////////////// 0x0a, USB_DESCRIPTOR_TYPE_DEVICE_QUALIFIER, 0x00, 0x02, 0x00, 0x00, 0x00, 0x40, 0x01, 0x00, #endif 0x00 }; /*!< hid mouse report descriptor */ static const uint8_t hid_mouse_report_desc[HID_MOUSE_REPORT_DESC_SIZE] = { 0x05, 0x01, // USAGE_PAGE (Generic Desktop) 0x09, 0x02, // USAGE (Mouse) 0xA1, 0x01, // COLLECTION (Application) 0x09, 0x01, // USAGE (Pointer) 0xA1, 0x00, // COLLECTION (Physical) 0x05, 0x09, // USAGE_PAGE (Button) 0x19, 0x01, // USAGE_MINIMUM (Button 1) 0x29, 0x03, // USAGE_MAXIMUM (Button 3) 0x15, 0x00, // LOGICAL_MINIMUM (0) 0x25, 0x01, // LOGICAL_MAXIMUM (1) 0x95, 0x03, // REPORT_COUNT (3) 0x75, 0x01, // REPORT_SIZE (1) 0x81, 0x02, // INPUT (Data,Var,Abs) 0x95, 0x01, // REPORT_COUNT (1) 0x75, 0x05, // REPORT_SIZE (5) 0x81, 0x01, // INPUT (Cnst,Var,Abs) 0x05, 0x01, // USAGE_PAGE (Generic Desktop) 0x09, 0x30, // USAGE (X) 0x09, 0x31, // USAGE (Y) 0x09, 0x38, 0x15, 0x81, // LOGICAL_MINIMUM (-127) 0x25, 0x7F, // LOGICAL_MAXIMUM (127) 0x75, 0x08, // REPORT_SIZE (8) 0x95, 0x03, // REPORT_COUNT (2) 0x81, 0x06, // INPUT (Data,Var,Rel) 0xC0, 0x09, 0x3c, 0x05, 0xff, 0x09, 0x01, 0x15, 0x00, 0x25, 0x01, 0x75, 0x01, 0x95, 0x02, 0xb1, 0x22, 0x75, 0x06, 0x95, 0x01, 0xb1, 0x01, 0xc0 // END_COLLECTION }; /*!< mouse report struct */ struct hid_mouse { uint8_t buttons; int8_t x; int8_t y; int8_t wheel; }; /*!< class */ static usbd_class_t hid_class; /*!< interface */ static usbd_interface_t hid_intf; /*!< mouse report */ static struct hid_mouse mouse_cfg; /* function ------------------------------------------------------------------*/ static void usbd_hid_int_callback(uint8_t ep) { /*!< endpoint call back */ /*!< transfer successfully */ if (hid_state == HID_STATE_BUSY) { /*!< update the state */ hid_state = HID_STATE_IDLE; } } /*!< endpoint call back */ static usbd_endpoint_t hid_in_ep = { .ep_cb = usbd_hid_int_callback, .ep_addr = 0x81 }; /* function ------------------------------------------------------------------*/ /** * @brief hid mouse init * @pre none * @param[in] none * @retval none */ void hid_mouse_init(void) { usbd_desc_register(hid_descriptor); /*!< add interface */ usbd_hid_add_interface(&hid_class, &hid_intf); /*!< interface add endpoint */ usbd_interface_add_endpoint(&hid_intf, &hid_in_ep); /*!< register report descriptor */ usbd_hid_report_descriptor_register(0, hid_mouse_report_desc, HID_MOUSE_REPORT_DESC_SIZE); usbd_initialize(); /*!< init mouse report data */ mouse_cfg.buttons = 0; mouse_cfg.wheel = 0; mouse_cfg.x = 0; mouse_cfg.y = 0; } /** * @brief device send report to host * @pre none * @param[in] ep endpoint address * @param[in] data Points to the data buffer waiting to be sent * @param[in] len Length of data to be sent * @retval none */ void hid_mouse_send_report(uint8_t ep, uint8_t *data, uint8_t len) { if (usb_device_is_configured()) { if (hid_state == HID_STATE_IDLE) { /*!< updata the state */ hid_state = HID_STATE_BUSY; /*!< write buffer */ usbd_ep_write(ep, data, len, NULL); } } } /** * @brief hid mouse test * @pre none * @param[in] none * @retval none */ void hid_mouse_send_report_test(void) { /*!< remove mouse pointer */ mouse_cfg.x += 10; mouse_cfg.y = 0; /*!< send repotr to host */ hid_mouse_send_report(HID_INT_EP, (uint8_t *)&mouse_cfg, 4); /*!< delay 1000ms */ }