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usbd_hid_core.c
507 lines (441 loc) · 14 KB
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usbd_hid_core.c
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/**
******************************************************************************
* @file usbd_hid_core.c
* @author MCD Application Team
* @version V1.2.0
* @date 09-November-2015
* @brief This file provides the HID core functions.
*
* @verbatim
*
* ===================================================================
* HID Class Description
* ===================================================================
* This module manages the HID class V1.11 following the "Device Class Definition
* for Human Interface Devices (HID) Version 1.11 Jun 27, 2001".
* This driver implements the following aspects of the specification:
* - The Boot Interface Subclass
* - The Mouse protocol
* - Usage Page : Generic Desktop
* - Usage : Joystick)
* - Collection : Application
*
* @note In HS mode and when the DMA is used, all variables and data structures
* dealing with the DMA during the transaction process should be 32-bit aligned.
*
*
* @endverbatim
*
******************************************************************************
* @attention
*
* <h2><center>© COPYRIGHT 2015 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "usbd_hid_core.h"
#include "usbd_desc.h"
#include "usbd_req.h"
#include "common/utils.h"
/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
* @{
*/
/** @defgroup USBD_HID
* @brief usbd core module
* @{
*/
/** @defgroup USBD_HID_Private_TypesDefinitions
* @{
*/
/**
* @}
*/
/** @defgroup USBD_HID_Private_Defines
* @{
*/
/**
* @}
*/
/** @defgroup USBD_HID_Private_Macros
* @{
*/
/**
* @}
*/
/** @defgroup USBD_HID_Private_FunctionPrototypes
* @{
*/
uint8_t USBD_HID_Init (void *pdev,
uint8_t cfgidx);
uint8_t USBD_HID_DeInit (void *pdev,
uint8_t cfgidx);
uint8_t USBD_HID_Setup (void *pdev,
USB_SETUP_REQ *req);
static uint8_t *USBD_HID_GetCfgDesc (uint8_t speed, uint16_t *length);
uint8_t USBD_HID_DataIn (void *pdev, uint8_t epnum);
/**
* @}
*/
/** @defgroup USBD_HID_Private_Variables
* @{
*/
USBD_Class_cb_TypeDef USBD_HID_cb =
{
USBD_HID_Init,
USBD_HID_DeInit,
USBD_HID_Setup,
NULL, /*EP0_TxSent*/
NULL, /*EP0_RxReady*/
USBD_HID_DataIn, /*DataIn*/
NULL, /*DataOut*/
NULL, /*SOF */
NULL,
NULL,
USBD_HID_GetCfgDesc,
#ifdef USB_OTG_HS_CORE
USBD_HID_GetCfgDesc, /* use same config as per FS */
#endif
};
#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
#if defined ( __ICCARM__ ) /*!< IAR Compiler */
#pragma data_alignment=4
#endif
#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
__ALIGN_BEGIN static uint32_t USBD_HID_AltSet __ALIGN_END = 0;
#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
#if defined ( __ICCARM__ ) /*!< IAR Compiler */
#pragma data_alignment=4
#endif
#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
__ALIGN_BEGIN static uint32_t USBD_HID_Protocol __ALIGN_END = 0;
#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
#if defined ( __ICCARM__ ) /*!< IAR Compiler */
#pragma data_alignment=4
#endif
#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
__ALIGN_BEGIN static uint32_t USBD_HID_IdleState __ALIGN_END = 0;
#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
#if defined ( __ICCARM__ ) /*!< IAR Compiler */
#pragma data_alignment=4
#endif
#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
/* USB HID device Configuration Descriptor */
__ALIGN_BEGIN static uint8_t USBD_HID_CfgDesc[USB_HID_CONFIG_DESC_SIZ] __ALIGN_END =
{
0x09, /* bLength: Configuration Descriptor size */
USB_CONFIGURATION_DESCRIPTOR_TYPE, /* bDescriptorType: Configuration */
USB_HID_CONFIG_DESC_SIZ,
/* wTotalLength: Bytes returned */
0x00,
0x01, /*bNumInterfaces: 1 interface*/
0x01, /*bConfigurationValue: Configuration value*/
0x00, /*iConfiguration: Index of string descriptor describing
the configuration*/
0xE0, /*bmAttributes: bus powered and Support Remote Wake-up */
0x32, /*MaxPower 100 mA: this current is used for detecting Vbus*/
/************** Descriptor of Joystick Mouse interface ****************/
/* 09 */
0x09, /*bLength: Interface Descriptor size*/
USB_INTERFACE_DESCRIPTOR_TYPE,/*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, /*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_ENDPOINT_DESCRIPTOR_TYPE, /*bDescriptorType:*/
HID_IN_EP, /*bEndpointAddress: Endpoint Address (IN)*/
0x03, /*bmAttributes: Interrupt endpoint*/
HID_IN_PACKET, /*wMaxPacketSize: 4 Byte max */
0x00,
HID_FS_BINTERVAL, /*bInterval: Polling Interval (10 ms)*/
/* 34 */
} ;
#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
#if defined ( __ICCARM__ ) /*!< IAR Compiler */
#pragma data_alignment=4
#endif
/* USB HID device Configuration Descriptor */
__ALIGN_BEGIN static uint8_t USBD_HID_Desc[USB_HID_DESC_SIZ] __ALIGN_END=
{
/* 18 */
0x09, /*bLength: HID Descriptor size*/
HID_DESCRIPTOR_TYPE, /*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,
};
#endif
#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
#if defined ( __ICCARM__ ) /*!< IAR Compiler */
#pragma data_alignment=4
#endif
#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
__ALIGN_BEGIN static uint8_t HID_MOUSE_ReportDesc[HID_MOUSE_REPORT_DESC_SIZE] __ALIGN_END =
{
0x05, 0x01, // USAGE_PAGE (Generic Desktop)
0x09, 0x05, // USAGE (Game Pad)
0xa1, 0x01, // COLLECTION (Application)
0xa1, 0x00, // COLLECTION (Physical)
0x05, 0x01, // USAGE_PAGE (Generic Desktop)
0x09, 0x30, // USAGE (X)
0x09, 0x31, // USAGE (Y)
0x09, 0x32, // USAGE (Z)
0x09, 0x33, // USAGE (Rx)
0x09, 0x35, // USAGE (Rz)
0x09, 0x34, // USAGE (Ry)
0x09, 0x36, // USAGE (Slider)
0x09, 0x37, // USAGE (Dial)
0x15, 0x81, // LOGICAL_MINIMUM (-127)
0x25, 0x7f, // LOGICAL_MAXIMUM (127)
0x75, 0x08, // REPORT_SIZE (8)
0x95, 0x08, // REPORT_COUNT (8)
0x81, 0x02, // INPUT (Data,Var,Abs)
0x05, 0x09, // USAGE_PAGE (Button)
0x19, 0x01, // USAGE_MINIMUM (Button 1)
0x29, 0x08, // USAGE_MAXIMUM (Button 8)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x25, 0x01, // LOGICAL_MAXIMUM (1)
0x95, 0x08, // REPORT_COUNT (8)
0x75, 0x01, // REPORT_SIZE (1)
0x81, 0x02, // INPUT (Data,Var,Abs)
0xc0, // END_COLLECTION
0xc0 /* END_COLLECTION */
};
/**
* @}
*/
/** @defgroup USBD_HID_Private_Functions
* @{
*/
/**
* @brief USBD_HID_Init
* Initialize the HID interface
* @param pdev: device instance
* @param cfgidx: Configuration index
* @retval status
*/
uint8_t USBD_HID_Init (void *pdev,
uint8_t cfgidx)
{
UNUSED(cfgidx);
/* Open EP IN */
DCD_EP_Open(pdev,
HID_IN_EP,
HID_IN_PACKET,
USB_OTG_EP_INT);
return USBD_OK;
}
/**
* @brief USBD_HID_Init
* DeInitialize the HID layer
* @param pdev: device instance
* @param cfgidx: Configuration index
* @retval status
*/
uint8_t USBD_HID_DeInit (void *pdev,
uint8_t cfgidx)
{
UNUSED(cfgidx);
/* Close HID EPs */
DCD_EP_Close (pdev , HID_IN_EP);
return USBD_OK;
}
/**
* @brief USBD_HID_Setup
* Handle the HID specific requests
* @param pdev: instance
* @param req: usb requests
* @retval status
*/
uint8_t USBD_HID_Setup (void *pdev,
USB_SETUP_REQ *req)
{
uint16_t len = 0;
uint8_t *pbuf = NULL;
switch (req->bmRequest & USB_REQ_TYPE_MASK)
{
case USB_REQ_TYPE_CLASS :
switch (req->bRequest)
{
case HID_REQ_SET_PROTOCOL:
USBD_HID_Protocol = (uint8_t)(req->wValue);
break;
case HID_REQ_GET_PROTOCOL:
USBD_CtlSendData (pdev,
(uint8_t *)&USBD_HID_Protocol,
1);
break;
case HID_REQ_SET_IDLE:
USBD_HID_IdleState = (uint8_t)(req->wValue >> 8);
break;
case HID_REQ_GET_IDLE:
USBD_CtlSendData (pdev,
(uint8_t *)&USBD_HID_IdleState,
1);
break;
default:
USBD_CtlError (pdev, req);
return USBD_FAIL;
}
break;
case USB_REQ_TYPE_STANDARD:
switch (req->bRequest)
{
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)
{
#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
pbuf = USBD_HID_Desc;
#else
pbuf = USBD_HID_CfgDesc + 0x12;
#endif
len = MIN(USB_HID_DESC_SIZ , req->wLength);
}
else
{
/* Do Nothing */
}
USBD_CtlSendData (pdev,
pbuf,
len);
break;
case USB_REQ_GET_INTERFACE :
USBD_CtlSendData (pdev,
(uint8_t *)&USBD_HID_AltSet,
1);
break;
case USB_REQ_SET_INTERFACE :
USBD_HID_AltSet = (uint8_t)(req->wValue);
break;
default:
USBD_HID_AltSet = (uint8_t)(req->wValue);
break;
}
break;
default:
USBD_CtlSendData (pdev,
(uint8_t *)&USBD_HID_AltSet,
1);
break;
}
return USBD_OK;
}
/**
* @brief USBD_HID_SendReport
* Send HID Report
* @param pdev: device instance
* @param buff: pointer to report
* @retval status
*/
uint8_t USBD_HID_SendReport (USB_OTG_CORE_HANDLE *pdev,
uint8_t *report,
uint16_t len)
{
if (pdev->dev.device_status == USB_OTG_CONFIGURED )
{
DCD_EP_Tx (pdev, HID_IN_EP, report, len);
}
return USBD_OK;
}
/**
* @brief USBD_HID_GetCfgDesc
* return configuration descriptor
* @param speed : current device speed
* @param length : pointer data length
* @retval pointer to descriptor buffer
*/
static uint8_t *USBD_HID_GetCfgDesc (uint8_t speed, uint16_t *length)
{
UNUSED(speed);
*length = sizeof (USBD_HID_CfgDesc);
return USBD_HID_CfgDesc;
}
/**
* @brief USBD_HID_DataIn
* handle data IN Stage
* @param pdev: device instance
* @param epnum: endpoint index
* @retval status
*/
uint8_t USBD_HID_DataIn (void *pdev,
uint8_t 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 */
UNUSED(epnum);
DCD_EP_Flush(pdev, HID_IN_EP);
return USBD_OK;
}
/**
* @brief USBD_HID_GetPollingInterval
* return polling interval from endpoint descriptor
* @param pdev: device instance
* @retval polling interval
*/
uint32_t USBD_HID_GetPollingInterval (USB_OTG_CORE_HANDLE *pdev)
{
uint32_t polling_interval = 0;
/* HIGH-speed endpoints */
if(pdev->cfg.speed == USB_OTG_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 = (((1 <<(HID_HS_BINTERVAL - 1)))/8);
}
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));
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/