forked from stm/stm32-mw-usb-device
699 lines
25 KiB
C
699 lines
25 KiB
C
/**
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******************************************************************************
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* @file usbd_hid.c
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* @author MCD Application Team
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* @brief This file provides the HID core functions.
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*
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* @verbatim
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*
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* ===================================================================
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* HID Class Description
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* ===================================================================
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* This module manages the HID class V1.11 following the "Device Class Definition
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* for Human Interface Devices (HID) Version 1.11 Jun 27, 2001".
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* This driver implements the following aspects of the specification:
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* - The Boot Interface Subclass
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* - The Mouse protocol
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* - Usage Page : Generic Desktop
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* - Usage : Joystick
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* - Collection : Application
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*
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* @note In HS mode and when the DMA is used, all variables and data structures
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* dealing with the DMA during the transaction process should be 32-bit aligned.
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*
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*
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* @endverbatim
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*
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******************************************************************************
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* @attention
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*
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* <h2><center>© Copyright (c) 2015 STMicroelectronics.
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* All rights reserved.</center></h2>
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*
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* This software component is licensed by ST under Ultimate Liberty license
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* SLA0044, the "License"; You may not use this file except in compliance with
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* the License. You may obtain a copy of the License at:
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* www.st.com/SLA0044
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*
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******************************************************************************
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*/
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/* BSPDependencies
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- "stm32xxxxx_{eval}{discovery}{nucleo_144}.c"
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- "stm32xxxxx_{eval}{discovery}_io.c"
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EndBSPDependencies */
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/* Includes ------------------------------------------------------------------*/
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#include "usbd_hid.h"
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#include "usbd_ctlreq.h"
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/** @addtogroup STM32_USB_DEVICE_LIBRARY
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* @{
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*/
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/** @defgroup USBD_HID
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* @brief usbd core module
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* @{
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*/
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/** @defgroup USBD_HID_Private_TypesDefinitions
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* @{
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*/
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/**
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* @}
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*/
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/** @defgroup USBD_HID_Private_Defines
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* @{
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*/
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/**
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* @}
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*/
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/** @defgroup USBD_HID_Private_Macros
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* @{
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*/
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/**
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* @}
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*/
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/** @defgroup USBD_HID_Private_FunctionPrototypes
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* @{
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*/
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static uint8_t USBD_HID_Init(USBD_HandleTypeDef *pdev, uint8_t cfgidx);
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static uint8_t USBD_HID_DeInit(USBD_HandleTypeDef *pdev, uint8_t cfgidx);
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static uint8_t USBD_HID_Setup(USBD_HandleTypeDef *pdev, USBD_SetupReqTypedef *req);
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static uint8_t USBD_HID_DataIn(USBD_HandleTypeDef *pdev, uint8_t epnum);
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static uint8_t *USBD_HID_GetFSCfgDesc(uint16_t *length);
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static uint8_t *USBD_HID_GetHSCfgDesc(uint16_t *length);
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static uint8_t *USBD_HID_GetOtherSpeedCfgDesc(uint16_t *length);
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static uint8_t *USBD_HID_GetDeviceQualifierDesc(uint16_t *length);
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/**
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* @}
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*/
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/** @defgroup USBD_HID_Private_Variables
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* @{
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*/
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USBD_ClassTypeDef USBD_HID =
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{
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USBD_HID_Init,
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USBD_HID_DeInit,
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USBD_HID_Setup,
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NULL, /* EP0_TxSent */
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NULL, /* EP0_RxReady */
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USBD_HID_DataIn, /* DataIn */
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NULL, /* DataOut */
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NULL, /* SOF */
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NULL,
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NULL,
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USBD_HID_GetHSCfgDesc,
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USBD_HID_GetFSCfgDesc,
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USBD_HID_GetOtherSpeedCfgDesc,
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USBD_HID_GetDeviceQualifierDesc,
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};
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/* USB HID device FS Configuration Descriptor */
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__ALIGN_BEGIN static uint8_t USBD_HID_CfgFSDesc[USB_HID_CONFIG_DESC_SIZ] __ALIGN_END =
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{
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0x09, /* bLength: Configuration Descriptor size */
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USB_DESC_TYPE_CONFIGURATION, /* bDescriptorType: Configuration */
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USB_HID_CONFIG_DESC_SIZ, /* wTotalLength: Bytes returned */
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0x00,
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0x01, /* bNumInterfaces: 1 interface */
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0x01, /* bConfigurationValue: Configuration value */
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0x00, /* iConfiguration: Index of string descriptor describing the configuration */
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#if (USBD_SELF_POWERED == 1U)
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0xE0, /* bmAttributes: Bus Powered according to user configuration */
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#else
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0xA0, /* bmAttributes: Bus Powered according to user configuration */
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#endif
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USBD_MAX_POWER, /* MaxPower (mA) */
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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_DESC_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, /* 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_DESC_TYPE_ENDPOINT, /* bDescriptorType:*/
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HID_EPIN_ADDR, /* bEndpointAddress: Endpoint Address (IN) */
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0x03, /* bmAttributes: Interrupt endpoint */
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HID_EPIN_SIZE, /* wMaxPacketSize: 4 Bytes max */
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0x00,
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HID_FS_BINTERVAL, /* bInterval: Polling Interval */
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/* 34 */
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};
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/* USB HID device HS Configuration Descriptor */
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__ALIGN_BEGIN static uint8_t USBD_HID_CfgHSDesc[USB_HID_CONFIG_DESC_SIZ] __ALIGN_END =
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{
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0x09, /* bLength: Configuration Descriptor size */
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USB_DESC_TYPE_CONFIGURATION, /* bDescriptorType: Configuration */
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USB_HID_CONFIG_DESC_SIZ, /* wTotalLength: Bytes returned */
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0x00,
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0x01, /* bNumInterfaces: 1 interface */
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0x01, /* bConfigurationValue: Configuration value */
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0x00, /* iConfiguration: Index of string descriptor describing the configuration */
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#if (USBD_SELF_POWERED == 1U)
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0xE0, /* bmAttributes: Bus Powered according to user configuration */
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#else
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0xA0, /* bmAttributes: Bus Powered according to user configuration */
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#endif
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USBD_MAX_POWER, /* MaxPower (mA) */
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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_DESC_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, /* 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_DESC_TYPE_ENDPOINT, /* bDescriptorType: */
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HID_EPIN_ADDR, /* bEndpointAddress: Endpoint Address (IN) */
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0x03, /* bmAttributes: Interrupt endpoint */
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HID_EPIN_SIZE, /* wMaxPacketSize: 4 Bytes max */
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0x00,
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HID_HS_BINTERVAL, /* bInterval: Polling Interval */
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/* 34 */
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};
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/* USB HID device Other Speed Configuration Descriptor */
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__ALIGN_BEGIN static uint8_t USBD_HID_OtherSpeedCfgDesc[USB_HID_CONFIG_DESC_SIZ] __ALIGN_END =
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{
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0x09, /* bLength: Configuration Descriptor size */
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USB_DESC_TYPE_CONFIGURATION, /* bDescriptorType: Configuration */
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USB_HID_CONFIG_DESC_SIZ, /* wTotalLength: Bytes returned */
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0x00,
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0x01, /* bNumInterfaces: 1 interface */
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0x01, /* bConfigurationValue: Configuration value */
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0x00, /* iConfiguration: Index of string descriptor describing the configuration */
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#if (USBD_SELF_POWERED == 1U)
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0xE0, /* bmAttributes: Bus Powered according to user configuration */
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#else
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0xA0, /* bmAttributes: Bus Powered according to user configuration */
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#endif
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USBD_MAX_POWER, /* MaxPower (mA) */
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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_DESC_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, /* 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_DESC_TYPE_ENDPOINT, /* bDescriptorType: */
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HID_EPIN_ADDR, /* bEndpointAddress: Endpoint Address (IN) */
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0x03, /* bmAttributes: Interrupt endpoint */
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HID_EPIN_SIZE, /* wMaxPacketSize: 4 Bytes max */
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0x00,
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HID_FS_BINTERVAL, /* bInterval: Polling Interval */
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/* 34 */
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};
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/* USB HID device Configuration Descriptor */
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__ALIGN_BEGIN static uint8_t USBD_HID_Desc[USB_HID_DESC_SIZ] __ALIGN_END =
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{
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/* 18 */
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0x09, /* bLength: HID Descriptor size */
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HID_DESCRIPTOR_TYPE, /* 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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};
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/* USB Standard Device Descriptor */
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__ALIGN_BEGIN static uint8_t USBD_HID_DeviceQualifierDesc[USB_LEN_DEV_QUALIFIER_DESC] __ALIGN_END =
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{
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USB_LEN_DEV_QUALIFIER_DESC,
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USB_DESC_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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};
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__ALIGN_BEGIN static uint8_t HID_MOUSE_ReportDesc[HID_MOUSE_REPORT_DESC_SIZE] __ALIGN_END =
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{
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0x05, 0x01, /* Usage Page (Generic Desktop Ctrls) */
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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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0xA1, 0x00, /* Collection (Physical) */
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0x05, 0x09, /* Usage Page (Button) */
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0x19, 0x01, /* Usage Minimum (0x01) */
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0x29, 0x03, /* Usage Maximum (0x03) */
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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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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 (Const,Array,Abs) */
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0x05, 0x01, /* Usage Page (Generic Desktop Ctrls) */
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0x09, 0x30, /* Usage (X) */
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0x09, 0x31, /* Usage (Y) */
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0x09, 0x38, /* Usage (Wheel) */
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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 (3) */
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0x81, 0x06, /* Input (Data,Var,Rel) */
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0xC0, /* End Collection */
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0x09, 0x3C, /* Usage (Motion Wakeup) */
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0x05, 0xFF, /* Usage Page (Reserved 0xFF) */
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0x09, 0x01, /* Usage (0x01) */
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0x15, 0x00, /* Logical Minimum (0) */
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0x25, 0x01, /* Logical Maximum (1) */
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0x75, 0x01, /* Report Size (1) */
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0x95, 0x02, /* Report Count (2) */
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0xB1, 0x22, /* Feature (Data,Var,Abs,NoWrp) */
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0x75, 0x06, /* Report Size (6) */
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0x95, 0x01, /* Report Count (1) */
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0xB1, 0x01, /* Feature (Const,Array,Abs,NoWrp) */
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0xC0 /* End Collection */
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};
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/**
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* @}
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*/
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/** @defgroup USBD_HID_Private_Functions
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* @{
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*/
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/**
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* @brief USBD_HID_Init
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* Initialize the HID interface
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* @param pdev: device instance
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* @param cfgidx: Configuration index
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* @retval status
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*/
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static uint8_t USBD_HID_Init(USBD_HandleTypeDef *pdev, uint8_t cfgidx)
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{
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UNUSED(cfgidx);
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USBD_HID_HandleTypeDef *hhid;
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hhid = (USBD_HID_HandleTypeDef *)USBD_malloc(sizeof(USBD_HID_HandleTypeDef));
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if (hhid == NULL)
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{
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pdev->pClassData = NULL;
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return (uint8_t)USBD_EMEM;
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}
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pdev->pClassData = (void *)hhid;
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if (pdev->dev_speed == USBD_SPEED_HIGH)
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{
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pdev->ep_in[HID_EPIN_ADDR & 0xFU].bInterval = HID_HS_BINTERVAL;
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}
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else /* LOW and FULL-speed endpoints */
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{
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pdev->ep_in[HID_EPIN_ADDR & 0xFU].bInterval = HID_FS_BINTERVAL;
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}
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/* Open EP IN */
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(void)USBD_LL_OpenEP(pdev, HID_EPIN_ADDR, USBD_EP_TYPE_INTR, HID_EPIN_SIZE);
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pdev->ep_in[HID_EPIN_ADDR & 0xFU].is_used = 1U;
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hhid->state = HID_IDLE;
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return (uint8_t)USBD_OK;
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}
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/**
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* @brief USBD_HID_DeInit
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* DeInitialize the HID layer
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* @param pdev: device instance
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* @param cfgidx: Configuration index
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* @retval status
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*/
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static uint8_t USBD_HID_DeInit(USBD_HandleTypeDef *pdev, uint8_t cfgidx)
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{
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UNUSED(cfgidx);
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/* Close HID EPs */
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(void)USBD_LL_CloseEP(pdev, HID_EPIN_ADDR);
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pdev->ep_in[HID_EPIN_ADDR & 0xFU].is_used = 0U;
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pdev->ep_in[HID_EPIN_ADDR & 0xFU].bInterval = 0U;
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/* Free allocated memory */
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if (pdev->pClassData != NULL)
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{
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(void)USBD_free(pdev->pClassData);
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pdev->pClassData = NULL;
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}
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return (uint8_t)USBD_OK;
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}
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/**
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* @brief USBD_HID_Setup
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* Handle the HID specific requests
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* @param pdev: instance
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* @param req: usb requests
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* @retval status
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*/
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static uint8_t USBD_HID_Setup(USBD_HandleTypeDef *pdev, USBD_SetupReqTypedef *req)
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{
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USBD_HID_HandleTypeDef *hhid = (USBD_HID_HandleTypeDef *)pdev->pClassData;
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USBD_StatusTypeDef ret = USBD_OK;
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uint16_t len;
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uint8_t *pbuf;
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uint16_t status_info = 0U;
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if (hhid == NULL)
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{
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return (uint8_t)USBD_FAIL;
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}
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switch (req->bmRequest & USB_REQ_TYPE_MASK)
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{
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case USB_REQ_TYPE_CLASS :
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switch (req->bRequest)
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{
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case HID_REQ_SET_PROTOCOL:
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hhid->Protocol = (uint8_t)(req->wValue);
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break;
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case HID_REQ_GET_PROTOCOL:
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(void)USBD_CtlSendData(pdev, (uint8_t *)&hhid->Protocol, 1U);
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break;
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case HID_REQ_SET_IDLE:
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hhid->IdleState = (uint8_t)(req->wValue >> 8);
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break;
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case HID_REQ_GET_IDLE:
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(void)USBD_CtlSendData(pdev, (uint8_t *)&hhid->IdleState, 1U);
|
|
break;
|
|
|
|
default:
|
|
USBD_CtlError(pdev, req);
|
|
ret = USBD_FAIL;
|
|
break;
|
|
}
|
|
break;
|
|
case USB_REQ_TYPE_STANDARD:
|
|
switch (req->bRequest)
|
|
{
|
|
case USB_REQ_GET_STATUS:
|
|
if (pdev->dev_state == USBD_STATE_CONFIGURED)
|
|
{
|
|
(void)USBD_CtlSendData(pdev, (uint8_t *)&status_info, 2U);
|
|
}
|
|
else
|
|
{
|
|
USBD_CtlError(pdev, req);
|
|
ret = USBD_FAIL;
|
|
}
|
|
break;
|
|
|
|
case USB_REQ_GET_DESCRIPTOR:
|
|
if ((req->wValue >> 8) == HID_REPORT_DESC)
|
|
{
|
|
len = MIN(HID_MOUSE_REPORT_DESC_SIZE, req->wLength);
|
|
pbuf = HID_MOUSE_ReportDesc;
|
|
}
|
|
else if ((req->wValue >> 8) == HID_DESCRIPTOR_TYPE)
|
|
{
|
|
pbuf = USBD_HID_Desc;
|
|
len = MIN(USB_HID_DESC_SIZ, req->wLength);
|
|
}
|
|
else
|
|
{
|
|
USBD_CtlError(pdev, req);
|
|
ret = USBD_FAIL;
|
|
break;
|
|
}
|
|
(void)USBD_CtlSendData(pdev, pbuf, len);
|
|
break;
|
|
|
|
case USB_REQ_GET_INTERFACE :
|
|
if (pdev->dev_state == USBD_STATE_CONFIGURED)
|
|
{
|
|
(void)USBD_CtlSendData(pdev, (uint8_t *)&hhid->AltSetting, 1U);
|
|
}
|
|
else
|
|
{
|
|
USBD_CtlError(pdev, req);
|
|
ret = USBD_FAIL;
|
|
}
|
|
break;
|
|
|
|
case USB_REQ_SET_INTERFACE:
|
|
if (pdev->dev_state == USBD_STATE_CONFIGURED)
|
|
{
|
|
hhid->AltSetting = (uint8_t)(req->wValue);
|
|
}
|
|
else
|
|
{
|
|
USBD_CtlError(pdev, req);
|
|
ret = USBD_FAIL;
|
|
}
|
|
break;
|
|
|
|
case USB_REQ_CLEAR_FEATURE:
|
|
break;
|
|
|
|
default:
|
|
USBD_CtlError(pdev, req);
|
|
ret = USBD_FAIL;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
USBD_CtlError(pdev, req);
|
|
ret = USBD_FAIL;
|
|
break;
|
|
}
|
|
|
|
return (uint8_t)ret;
|
|
}
|
|
|
|
/**
|
|
* @brief USBD_HID_SendReport
|
|
* Send HID Report
|
|
* @param pdev: device instance
|
|
* @param buff: pointer to report
|
|
* @retval status
|
|
*/
|
|
uint8_t USBD_HID_SendReport(USBD_HandleTypeDef *pdev, uint8_t *report, uint16_t len)
|
|
{
|
|
USBD_HID_HandleTypeDef *hhid = (USBD_HID_HandleTypeDef *)pdev->pClassData;
|
|
|
|
if (hhid == NULL)
|
|
{
|
|
return (uint8_t)USBD_FAIL;
|
|
}
|
|
|
|
if (pdev->dev_state == USBD_STATE_CONFIGURED)
|
|
{
|
|
if (hhid->state == HID_IDLE)
|
|
{
|
|
hhid->state = HID_BUSY;
|
|
(void)USBD_LL_Transmit(pdev, HID_EPIN_ADDR, report, len);
|
|
}
|
|
}
|
|
|
|
return (uint8_t)USBD_OK;
|
|
}
|
|
|
|
/**
|
|
* @brief USBD_HID_GetPollingInterval
|
|
* return polling interval from endpoint descriptor
|
|
* @param pdev: device instance
|
|
* @retval polling interval
|
|
*/
|
|
uint32_t USBD_HID_GetPollingInterval(USBD_HandleTypeDef *pdev)
|
|
{
|
|
uint32_t polling_interval;
|
|
|
|
/* HIGH-speed endpoints */
|
|
if (pdev->dev_speed == USBD_SPEED_HIGH)
|
|
{
|
|
/* Sets the data transfer polling interval for high speed transfers.
|
|
Values between 1..16 are allowed. Values correspond to interval
|
|
of 2 ^ (bInterval-1). This option (8 ms, corresponds to HID_HS_BINTERVAL */
|
|
polling_interval = (((1U << (HID_HS_BINTERVAL - 1U))) / 8U);
|
|
}
|
|
else /* LOW and FULL-speed endpoints */
|
|
{
|
|
/* Sets the data transfer polling interval for low and full
|
|
speed transfers */
|
|
polling_interval = HID_FS_BINTERVAL;
|
|
}
|
|
|
|
return ((uint32_t)(polling_interval));
|
|
}
|
|
|
|
/**
|
|
* @brief USBD_HID_GetCfgFSDesc
|
|
* return FS configuration descriptor
|
|
* @param speed : current device speed
|
|
* @param length : pointer data length
|
|
* @retval pointer to descriptor buffer
|
|
*/
|
|
static uint8_t *USBD_HID_GetFSCfgDesc(uint16_t *length)
|
|
{
|
|
*length = (uint16_t)sizeof(USBD_HID_CfgFSDesc);
|
|
|
|
return USBD_HID_CfgFSDesc;
|
|
}
|
|
|
|
/**
|
|
* @brief USBD_HID_GetCfgHSDesc
|
|
* return HS configuration descriptor
|
|
* @param speed : current device speed
|
|
* @param length : pointer data length
|
|
* @retval pointer to descriptor buffer
|
|
*/
|
|
static uint8_t *USBD_HID_GetHSCfgDesc(uint16_t *length)
|
|
{
|
|
*length = (uint16_t)sizeof(USBD_HID_CfgHSDesc);
|
|
|
|
return USBD_HID_CfgHSDesc;
|
|
}
|
|
|
|
/**
|
|
* @brief USBD_HID_GetOtherSpeedCfgDesc
|
|
* return other speed configuration descriptor
|
|
* @param speed : current device speed
|
|
* @param length : pointer data length
|
|
* @retval pointer to descriptor buffer
|
|
*/
|
|
static uint8_t *USBD_HID_GetOtherSpeedCfgDesc(uint16_t *length)
|
|
{
|
|
*length = (uint16_t)sizeof(USBD_HID_OtherSpeedCfgDesc);
|
|
|
|
return USBD_HID_OtherSpeedCfgDesc;
|
|
}
|
|
|
|
/**
|
|
* @brief USBD_HID_DataIn
|
|
* handle data IN Stage
|
|
* @param pdev: device instance
|
|
* @param epnum: endpoint index
|
|
* @retval status
|
|
*/
|
|
static uint8_t USBD_HID_DataIn(USBD_HandleTypeDef *pdev, uint8_t epnum)
|
|
{
|
|
UNUSED(epnum);
|
|
/* Ensure that the FIFO is empty before a new transfer, this condition could
|
|
be caused by a new transfer before the end of the previous transfer */
|
|
((USBD_HID_HandleTypeDef *)pdev->pClassData)->state = HID_IDLE;
|
|
|
|
return (uint8_t)USBD_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* @brief DeviceQualifierDescriptor
|
|
* return Device Qualifier descriptor
|
|
* @param length : pointer data length
|
|
* @retval pointer to descriptor buffer
|
|
*/
|
|
static uint8_t *USBD_HID_GetDeviceQualifierDesc(uint16_t *length)
|
|
{
|
|
*length = (uint16_t)sizeof(USBD_HID_DeviceQualifierDesc);
|
|
|
|
return USBD_HID_DeviceQualifierDesc;
|
|
}
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|