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micropython/stm/lib/usbd_req.c

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/**
******************************************************************************
* @file usbd_req.c
* @author MCD Application Team
* @version V1.1.0
* @date 19-March-2012
* @brief This file provides the standard USB requests following chapter 9.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 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_req.h"
#include "usbd_ioreq.h"
#include "usbd_desc.h"
/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
* @{
*/
/** @defgroup USBD_REQ
* @brief USB standard requests module
* @{
*/
/** @defgroup USBD_REQ_Private_TypesDefinitions
* @{
*/
/**
* @}
*/
/** @defgroup USBD_REQ_Private_Defines
* @{
*/
/**
* @}
*/
/** @defgroup USBD_REQ_Private_Macros
* @{
*/
/**
* @}
*/
/** @defgroup USBD_REQ_Private_Variables
* @{
*/
extern __IO USB_OTG_DCTL_TypeDef SET_TEST_MODE;
#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 uint32_t USBD_ep_status __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 uint32_t USBD_default_cfg __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 uint32_t USBD_cfg_status __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 uint8_t USBD_StrDesc[USB_MAX_STR_DESC_SIZ] __ALIGN_END ;
/**
* @}
*/
/** @defgroup USBD_REQ_Private_FunctionPrototypes
* @{
*/
static void USBD_GetDescriptor(USB_OTG_CORE_HANDLE *pdev,
USB_SETUP_REQ *req);
static void USBD_SetAddress(USB_OTG_CORE_HANDLE *pdev,
USB_SETUP_REQ *req);
static void USBD_SetConfig(USB_OTG_CORE_HANDLE *pdev,
USB_SETUP_REQ *req);
static void USBD_GetConfig(USB_OTG_CORE_HANDLE *pdev,
USB_SETUP_REQ *req);
static void USBD_GetStatus(USB_OTG_CORE_HANDLE *pdev,
USB_SETUP_REQ *req);
static void USBD_SetFeature(USB_OTG_CORE_HANDLE *pdev,
USB_SETUP_REQ *req);
static void USBD_ClrFeature(USB_OTG_CORE_HANDLE *pdev,
USB_SETUP_REQ *req);
static uint8_t USBD_GetLen(const char *buf);
/**
* @}
*/
/** @defgroup USBD_REQ_Private_Functions
* @{
*/
/**
* @brief USBD_StdDevReq
* Handle standard usb device requests
* @param pdev: device instance
* @param req: usb request
* @retval status
*/
USBD_Status USBD_StdDevReq (USB_OTG_CORE_HANDLE *pdev, USB_SETUP_REQ *req)
{
USBD_Status ret = USBD_OK;
switch (req->bRequest)
{
case USB_REQ_GET_DESCRIPTOR:
USBD_GetDescriptor (pdev, req) ;
break;
case USB_REQ_SET_ADDRESS:
USBD_SetAddress(pdev, req);
break;
case USB_REQ_SET_CONFIGURATION:
USBD_SetConfig (pdev , req);
break;
case USB_REQ_GET_CONFIGURATION:
USBD_GetConfig (pdev , req);
break;
case USB_REQ_GET_STATUS:
USBD_GetStatus (pdev , req);
break;
case USB_REQ_SET_FEATURE:
USBD_SetFeature (pdev , req);
break;
case USB_REQ_CLEAR_FEATURE:
USBD_ClrFeature (pdev , req);
break;
default:
USBD_CtlError(pdev , req);
break;
}
return ret;
}
/**
* @brief USBD_StdItfReq
* Handle standard usb interface requests
* @param pdev: USB OTG device instance
* @param req: usb request
* @retval status
*/
USBD_Status USBD_StdItfReq (USB_OTG_CORE_HANDLE *pdev, USB_SETUP_REQ *req)
{
USBD_Status ret = USBD_OK;
switch (pdev->dev.device_status)
{
case USB_OTG_CONFIGURED:
if (LOBYTE(req->wIndex) <= USBD_ITF_MAX_NUM)
{
pdev->dev.class_cb->Setup (pdev, req);
if((req->wLength == 0)&& (ret == USBD_OK))
{
USBD_CtlSendStatus(pdev);
}
}
else
{
USBD_CtlError(pdev , req);
}
break;
default:
USBD_CtlError(pdev , req);
break;
}
return ret;
}
/**
* @brief USBD_StdEPReq
* Handle standard usb endpoint requests
* @param pdev: USB OTG device instance
* @param req: usb request
* @retval status
*/
USBD_Status USBD_StdEPReq (USB_OTG_CORE_HANDLE *pdev, USB_SETUP_REQ *req)
{
uint8_t ep_addr;
USBD_Status ret = USBD_OK;
ep_addr = LOBYTE(req->wIndex);
switch (req->bRequest)
{
case USB_REQ_SET_FEATURE :
switch (pdev->dev.device_status)
{
case USB_OTG_ADDRESSED:
if ((ep_addr != 0x00) && (ep_addr != 0x80))
{
DCD_EP_Stall(pdev , ep_addr);
}
break;
case USB_OTG_CONFIGURED:
if (req->wValue == USB_FEATURE_EP_HALT)
{
if ((ep_addr != 0x00) && (ep_addr != 0x80))
{
DCD_EP_Stall(pdev , ep_addr);
}
}
pdev->dev.class_cb->Setup (pdev, req);
USBD_CtlSendStatus(pdev);
break;
default:
USBD_CtlError(pdev , req);
break;
}
break;
case USB_REQ_CLEAR_FEATURE :
switch (pdev->dev.device_status)
{
case USB_OTG_ADDRESSED:
if ((ep_addr != 0x00) && (ep_addr != 0x80))
{
DCD_EP_Stall(pdev , ep_addr);
}
break;
case USB_OTG_CONFIGURED:
if (req->wValue == USB_FEATURE_EP_HALT)
{
if ((ep_addr != 0x00) && (ep_addr != 0x80))
{
DCD_EP_ClrStall(pdev , ep_addr);
pdev->dev.class_cb->Setup (pdev, req);
}
USBD_CtlSendStatus(pdev);
}
break;
default:
USBD_CtlError(pdev , req);
break;
}
break;
case USB_REQ_GET_STATUS:
switch (pdev->dev.device_status)
{
case USB_OTG_ADDRESSED:
if ((ep_addr != 0x00) && (ep_addr != 0x80))
{
DCD_EP_Stall(pdev , ep_addr);
}
break;
case USB_OTG_CONFIGURED:
if ((ep_addr & 0x80)== 0x80)
{
if(pdev->dev.in_ep[ep_addr & 0x7F].is_stall)
{
USBD_ep_status = 0x0001;
}
else
{
USBD_ep_status = 0x0000;
}
}
else if ((ep_addr & 0x80)== 0x00)
{
if(pdev->dev.out_ep[ep_addr].is_stall)
{
USBD_ep_status = 0x0001;
}
else
{
USBD_ep_status = 0x0000;
}
}
USBD_CtlSendData (pdev,
(uint8_t *)&USBD_ep_status,
2);
break;
default:
USBD_CtlError(pdev , req);
break;
}
break;
default:
break;
}
return ret;
}
/**
* @brief USBD_GetDescriptor
* Handle Get Descriptor requests
* @param pdev: device instance
* @param req: usb request
* @retval status
*/
static void USBD_GetDescriptor(USB_OTG_CORE_HANDLE *pdev,
USB_SETUP_REQ *req)
{
uint16_t len;
uint8_t *pbuf;
switch (req->wValue >> 8)
{
case USB_DESC_TYPE_DEVICE:
pbuf = pdev->dev.usr_device->GetDeviceDescriptor(pdev->cfg.speed, &len);
if ((req->wLength == 64) ||( pdev->dev.device_status == USB_OTG_DEFAULT))
{
len = 8;
}
break;
case USB_DESC_TYPE_CONFIGURATION:
pbuf = (uint8_t *)pdev->dev.class_cb->GetConfigDescriptor(pdev->cfg.speed, &len);
#ifdef USB_OTG_HS_CORE
if((pdev->cfg.speed == USB_OTG_SPEED_FULL )&&
(pdev->cfg.phy_itface == USB_OTG_ULPI_PHY))
{
pbuf = (uint8_t *)pdev->dev.class_cb->GetOtherConfigDescriptor(pdev->cfg.speed, &len);
}
#endif
pbuf[1] = USB_DESC_TYPE_CONFIGURATION;
pdev->dev.pConfig_descriptor = pbuf;
break;
case USB_DESC_TYPE_STRING:
switch ((uint8_t)(req->wValue))
{
case USBD_IDX_LANGID_STR:
pbuf = pdev->dev.usr_device->GetLangIDStrDescriptor(pdev->cfg.speed, &len);
break;
case USBD_IDX_MFC_STR:
pbuf = pdev->dev.usr_device->GetManufacturerStrDescriptor(pdev->cfg.speed, &len);
break;
case USBD_IDX_PRODUCT_STR:
pbuf = pdev->dev.usr_device->GetProductStrDescriptor(pdev->cfg.speed, &len);
break;
case USBD_IDX_SERIAL_STR:
pbuf = pdev->dev.usr_device->GetSerialStrDescriptor(pdev->cfg.speed, &len);
break;
case USBD_IDX_CONFIG_STR:
pbuf = pdev->dev.usr_device->GetConfigurationStrDescriptor(pdev->cfg.speed, &len);
break;
case USBD_IDX_INTERFACE_STR:
pbuf = pdev->dev.usr_device->GetInterfaceStrDescriptor(pdev->cfg.speed, &len);
break;
default:
#ifdef USB_SUPPORT_USER_STRING_DESC
pbuf = pdev->dev.class_cb->GetUsrStrDescriptor(pdev->cfg.speed, (req->wValue) , &len);
break;
#else
USBD_CtlError(pdev , req);
return;
#endif /* USBD_CtlError(pdev , req); */
}
break;
case USB_DESC_TYPE_DEVICE_QUALIFIER:
#ifdef USB_OTG_HS_CORE
if(pdev->cfg.speed == USB_OTG_SPEED_HIGH )
{
pbuf = (uint8_t *)pdev->dev.class_cb->GetConfigDescriptor(pdev->cfg.speed, &len);
USBD_DeviceQualifierDesc[4]= pbuf[14];
USBD_DeviceQualifierDesc[5]= pbuf[15];
USBD_DeviceQualifierDesc[6]= pbuf[16];
pbuf = USBD_DeviceQualifierDesc;
len = USB_LEN_DEV_QUALIFIER_DESC;
break;
}
else
{
USBD_CtlError(pdev , req);
return;
}
#else
USBD_CtlError(pdev , req);
return;
#endif
case USB_DESC_TYPE_OTHER_SPEED_CONFIGURATION:
#ifdef USB_OTG_HS_CORE
if(pdev->cfg.speed == USB_OTG_SPEED_HIGH )
{
pbuf = (uint8_t *)pdev->dev.class_cb->GetOtherConfigDescriptor(pdev->cfg.speed, &len);
pbuf[1] = USB_DESC_TYPE_OTHER_SPEED_CONFIGURATION;
break;
}
else
{
USBD_CtlError(pdev , req);
return;
}
#else
USBD_CtlError(pdev , req);
return;
#endif
default:
USBD_CtlError(pdev , req);
return;
}
if((len != 0)&& (req->wLength != 0))
{
len = MIN(len , req->wLength);
USBD_CtlSendData (pdev,
pbuf,
len);
}
}
/**
* @brief USBD_SetAddress
* Set device address
* @param pdev: device instance
* @param req: usb request
* @retval status
*/
static void USBD_SetAddress(USB_OTG_CORE_HANDLE *pdev,
USB_SETUP_REQ *req)
{
uint8_t dev_addr;
if ((req->wIndex == 0) && (req->wLength == 0))
{
dev_addr = (uint8_t)(req->wValue) & 0x7F;
if (pdev->dev.device_status == USB_OTG_CONFIGURED)
{
USBD_CtlError(pdev , req);
}
else
{
pdev->dev.device_address = dev_addr;
DCD_EP_SetAddress(pdev, dev_addr);
USBD_CtlSendStatus(pdev);
if (dev_addr != 0)
{
pdev->dev.device_status = USB_OTG_ADDRESSED;
}
else
{
pdev->dev.device_status = USB_OTG_DEFAULT;
}
}
}
else
{
USBD_CtlError(pdev , req);
}
}
/**
* @brief USBD_SetConfig
* Handle Set device configuration request
* @param pdev: device instance
* @param req: usb request
* @retval status
*/
static void USBD_SetConfig(USB_OTG_CORE_HANDLE *pdev,
USB_SETUP_REQ *req)
{
static uint8_t cfgidx;
cfgidx = (uint8_t)(req->wValue);
if (cfgidx > USBD_CFG_MAX_NUM )
{
USBD_CtlError(pdev , req);
}
else
{
switch (pdev->dev.device_status)
{
case USB_OTG_ADDRESSED:
if (cfgidx)
{
pdev->dev.device_config = cfgidx;
pdev->dev.device_status = USB_OTG_CONFIGURED;
USBD_SetCfg(pdev , cfgidx);
USBD_CtlSendStatus(pdev);
}
else
{
USBD_CtlSendStatus(pdev);
}
break;
case USB_OTG_CONFIGURED:
if (cfgidx == 0)
{
pdev->dev.device_status = USB_OTG_ADDRESSED;
pdev->dev.device_config = cfgidx;
USBD_ClrCfg(pdev , cfgidx);
USBD_CtlSendStatus(pdev);
}
else if (cfgidx != pdev->dev.device_config)
{
/* Clear old configuration */
USBD_ClrCfg(pdev , pdev->dev.device_config);
/* set new configuration */
pdev->dev.device_config = cfgidx;
USBD_SetCfg(pdev , cfgidx);
USBD_CtlSendStatus(pdev);
}
else
{
USBD_CtlSendStatus(pdev);
}
break;
default:
USBD_CtlError(pdev , req);
break;
}
}
}
/**
* @brief USBD_GetConfig
* Handle Get device configuration request
* @param pdev: device instance
* @param req: usb request
* @retval status
*/
static void USBD_GetConfig(USB_OTG_CORE_HANDLE *pdev,
USB_SETUP_REQ *req)
{
if (req->wLength != 1)
{
USBD_CtlError(pdev , req);
}
else
{
switch (pdev->dev.device_status )
{
case USB_OTG_ADDRESSED:
USBD_CtlSendData (pdev,
(uint8_t *)&USBD_default_cfg,
1);
break;
case USB_OTG_CONFIGURED:
USBD_CtlSendData (pdev,
&pdev->dev.device_config,
1);
break;
default:
USBD_CtlError(pdev , req);
break;
}
}
}
/**
* @brief USBD_GetStatus
* Handle Get Status request
* @param pdev: device instance
* @param req: usb request
* @retval status
*/
static void USBD_GetStatus(USB_OTG_CORE_HANDLE *pdev,
USB_SETUP_REQ *req)
{
switch (pdev->dev.device_status)
{
case USB_OTG_ADDRESSED:
case USB_OTG_CONFIGURED:
#ifdef USBD_SELF_POWERED
USBD_cfg_status = USB_CONFIG_SELF_POWERED;
#else
USBD_cfg_status = 0x00;
#endif
if (pdev->dev.DevRemoteWakeup)
{
USBD_cfg_status |= USB_CONFIG_REMOTE_WAKEUP;
}
USBD_CtlSendData (pdev,
(uint8_t *)&USBD_cfg_status,
2);
break;
default :
USBD_CtlError(pdev , req);
break;
}
}
/**
* @brief USBD_SetFeature
* Handle Set device feature request
* @param pdev: device instance
* @param req: usb request
* @retval status
*/
static void USBD_SetFeature(USB_OTG_CORE_HANDLE *pdev,
USB_SETUP_REQ *req)
{
USB_OTG_DCTL_TypeDef dctl;
uint8_t test_mode = 0;
if (req->wValue == USB_FEATURE_REMOTE_WAKEUP)
{
pdev->dev.DevRemoteWakeup = 1;
pdev->dev.class_cb->Setup (pdev, req);
USBD_CtlSendStatus(pdev);
}
else if ((req->wValue == USB_FEATURE_TEST_MODE) &&
((req->wIndex & 0xFF) == 0))
{
dctl.d32 = USB_OTG_READ_REG32(&pdev->regs.DREGS->DCTL);
test_mode = req->wIndex >> 8;
switch (test_mode)
{
case 1: // TEST_J
dctl.b.tstctl = 1;
break;
case 2: // TEST_K
dctl.b.tstctl = 2;
break;
case 3: // TEST_SE0_NAK
dctl.b.tstctl = 3;
break;
case 4: // TEST_PACKET
dctl.b.tstctl = 4;
break;
case 5: // TEST_FORCE_ENABLE
dctl.b.tstctl = 5;
break;
}
SET_TEST_MODE = dctl;
pdev->dev.test_mode = 1;
USBD_CtlSendStatus(pdev);
}
}
/**
* @brief USBD_ClrFeature
* Handle clear device feature request
* @param pdev: device instance
* @param req: usb request
* @retval status
*/
static void USBD_ClrFeature(USB_OTG_CORE_HANDLE *pdev,
USB_SETUP_REQ *req)
{
switch (pdev->dev.device_status)
{
case USB_OTG_ADDRESSED:
case USB_OTG_CONFIGURED:
if (req->wValue == USB_FEATURE_REMOTE_WAKEUP)
{
pdev->dev.DevRemoteWakeup = 0;
pdev->dev.class_cb->Setup (pdev, req);
USBD_CtlSendStatus(pdev);
}
break;
default :
USBD_CtlError(pdev , req);
break;
}
}
/**
* @brief USBD_ParseSetupRequest
* Copy buffer into setup structure
* @param pdev: device instance
* @param req: usb request
* @retval None
*/
void USBD_ParseSetupRequest( USB_OTG_CORE_HANDLE *pdev,
USB_SETUP_REQ *req)
{
req->bmRequest = *(uint8_t *) (pdev->dev.setup_packet);
req->bRequest = *(uint8_t *) (pdev->dev.setup_packet + 1);
req->wValue = SWAPBYTE (pdev->dev.setup_packet + 2);
req->wIndex = SWAPBYTE (pdev->dev.setup_packet + 4);
req->wLength = SWAPBYTE (pdev->dev.setup_packet + 6);
pdev->dev.in_ep[0].ctl_data_len = req->wLength ;
pdev->dev.device_state = USB_OTG_EP0_SETUP;
}
/**
* @brief USBD_CtlError
* Handle USB low level Error
* @param pdev: device instance
* @param req: usb request
* @retval None
*/
void USBD_CtlError( USB_OTG_CORE_HANDLE *pdev,
USB_SETUP_REQ *req)
{
DCD_EP_Stall(pdev , 0x80);
DCD_EP_Stall(pdev , 0);
USB_OTG_EP0_OutStart(pdev);
}
/**
* @brief USBD_GetString
* Convert Ascii string into unicode one
* @param desc : descriptor buffer
* @param unicode : Formatted string buffer (unicode)
* @param len : descriptor length
* @retval None
*/
void USBD_GetString(const char *desc, uint8_t *unicode, uint16_t *len)
{
uint8_t idx = 0;
if (desc != NULL)
{
*len = USBD_GetLen(desc) * 2 + 2;
unicode[idx++] = *len;
unicode[idx++] = USB_DESC_TYPE_STRING;
while (*desc != NULL)
{
unicode[idx++] = *desc++;
unicode[idx++] = 0x00;
}
}
}
/**
* @brief USBD_GetLen
* return the string length
* @param buf : pointer to the ascii string buffer
* @retval string length
*/
static uint8_t USBD_GetLen(const char *buf)
{
uint8_t len = 0;
while (*buf != NULL)
{
len++;
buf++;
}
return len;
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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