From eabbd037f5f605a9ecf06185cd62594eb4564bce Mon Sep 17 00:00:00 2001 From: Trygve Laugstøl Date: Mon, 1 May 2017 09:25:30 +0200 Subject: o Adding USB CDC code/support. --- .../Class/CDC/Src/usbd_cdc.c | 925 +++++++++++++++++++++ 1 file changed, 925 insertions(+) create mode 100644 stm32cubemx/Middlewares/ST/STM32_USB_Device_Library/Class/CDC/Src/usbd_cdc.c (limited to 'stm32cubemx/Middlewares/ST/STM32_USB_Device_Library/Class/CDC/Src/usbd_cdc.c') diff --git a/stm32cubemx/Middlewares/ST/STM32_USB_Device_Library/Class/CDC/Src/usbd_cdc.c b/stm32cubemx/Middlewares/ST/STM32_USB_Device_Library/Class/CDC/Src/usbd_cdc.c new file mode 100644 index 0000000..b2ca5f1 --- /dev/null +++ b/stm32cubemx/Middlewares/ST/STM32_USB_Device_Library/Class/CDC/Src/usbd_cdc.c @@ -0,0 +1,925 @@ +/** + ****************************************************************************** + * @file usbd_cdc.c + * @author MCD Application Team + * @version V2.4.2 + * @date 11-December-2015 + * @brief This file provides the high layer firmware functions to manage the + * following functionalities of the USB CDC Class: + * - Initialization and Configuration of high and low layer + * - Enumeration as CDC Device (and enumeration for each implemented memory interface) + * - OUT/IN data transfer + * - Command IN transfer (class requests management) + * - Error management + * + * @verbatim + * + * =================================================================== + * CDC Class Driver Description + * =================================================================== + * This driver manages the "Universal Serial Bus Class Definitions for Communications Devices + * Revision 1.2 November 16, 2007" and the sub-protocol specification of "Universal Serial Bus + * Communications Class Subclass Specification for PSTN Devices Revision 1.2 February 9, 2007" + * This driver implements the following aspects of the specification: + * - Device descriptor management + * - Configuration descriptor management + * - Enumeration as CDC device with 2 data endpoints (IN and OUT) and 1 command endpoint (IN) + * - Requests management (as described in section 6.2 in specification) + * - Abstract Control Model compliant + * - Union Functional collection (using 1 IN endpoint for control) + * - Data interface class + * + * These aspects may be enriched or modified for a specific user application. + * + * This driver doesn't implement the following aspects of the specification + * (but it is possible to manage these features with some modifications on this driver): + * - Any class-specific aspect relative to communication classes should be managed by user application. + * - All communication classes other than PSTN are not managed + * + * @endverbatim + * + ****************************************************************************** + * @attention + * + *

© COPYRIGHT 2015 STMicroelectronics

+ * + * 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_cdc.h" +#include "usbd_desc.h" +#include "usbd_ctlreq.h" + + +/** @addtogroup STM32_USB_DEVICE_LIBRARY + * @{ + */ + + +/** @defgroup USBD_CDC + * @brief usbd core module + * @{ + */ + +/** @defgroup USBD_CDC_Private_TypesDefinitions + * @{ + */ +/** + * @} + */ + + +/** @defgroup USBD_CDC_Private_Defines + * @{ + */ +/** + * @} + */ + + +/** @defgroup USBD_CDC_Private_Macros + * @{ + */ + +/** + * @} + */ + + +/** @defgroup USBD_CDC_Private_FunctionPrototypes + * @{ + */ + + +static uint8_t USBD_CDC_Init (USBD_HandleTypeDef *pdev, + uint8_t cfgidx); + +static uint8_t USBD_CDC_DeInit (USBD_HandleTypeDef *pdev, + uint8_t cfgidx); + +static uint8_t USBD_CDC_Setup (USBD_HandleTypeDef *pdev, + USBD_SetupReqTypedef *req); + +static uint8_t USBD_CDC_DataIn (USBD_HandleTypeDef *pdev, + uint8_t epnum); + +static uint8_t USBD_CDC_DataOut (USBD_HandleTypeDef *pdev, + uint8_t epnum); + +static uint8_t USBD_CDC_EP0_RxReady (USBD_HandleTypeDef *pdev); + +static uint8_t *USBD_CDC_GetFSCfgDesc (uint16_t *length); + +static uint8_t *USBD_CDC_GetHSCfgDesc (uint16_t *length); + +static uint8_t *USBD_CDC_GetOtherSpeedCfgDesc (uint16_t *length); + +static uint8_t *USBD_CDC_GetOtherSpeedCfgDesc (uint16_t *length); + +uint8_t *USBD_CDC_GetDeviceQualifierDescriptor (uint16_t *length); + +/* USB Standard Device Descriptor */ +__ALIGN_BEGIN static uint8_t USBD_CDC_DeviceQualifierDesc[USB_LEN_DEV_QUALIFIER_DESC] __ALIGN_END = +{ + USB_LEN_DEV_QUALIFIER_DESC, + USB_DESC_TYPE_DEVICE_QUALIFIER, + 0x00, + 0x02, + 0x00, + 0x00, + 0x00, + 0x40, + 0x01, + 0x00, +}; + +/** + * @} + */ + +/** @defgroup USBD_CDC_Private_Variables + * @{ + */ + + +/* CDC interface class callbacks structure */ +USBD_ClassTypeDef USBD_CDC = +{ + USBD_CDC_Init, + USBD_CDC_DeInit, + USBD_CDC_Setup, + NULL, /* EP0_TxSent, */ + USBD_CDC_EP0_RxReady, + USBD_CDC_DataIn, + USBD_CDC_DataOut, + NULL, + NULL, + NULL, + USBD_CDC_GetHSCfgDesc, + USBD_CDC_GetFSCfgDesc, + USBD_CDC_GetOtherSpeedCfgDesc, + USBD_CDC_GetDeviceQualifierDescriptor, +}; + +/* USB CDC device Configuration Descriptor */ +__ALIGN_BEGIN uint8_t USBD_CDC_CfgHSDesc[USB_CDC_CONFIG_DESC_SIZ] __ALIGN_END = +{ + /*Configuration Descriptor*/ + 0x09, /* bLength: Configuration Descriptor size */ + USB_DESC_TYPE_CONFIGURATION, /* bDescriptorType: Configuration */ + USB_CDC_CONFIG_DESC_SIZ, /* wTotalLength:no of returned bytes */ + 0x00, + 0x02, /* bNumInterfaces: 2 interface */ + 0x01, /* bConfigurationValue: Configuration value */ + 0x00, /* iConfiguration: Index of string descriptor describing the configuration */ + 0xC0, /* bmAttributes: self powered */ + 0x32, /* MaxPower 0 mA */ + + /*---------------------------------------------------------------------------*/ + + /*Interface Descriptor */ + 0x09, /* bLength: Interface Descriptor size */ + USB_DESC_TYPE_INTERFACE, /* bDescriptorType: Interface */ + /* Interface descriptor type */ + 0x00, /* bInterfaceNumber: Number of Interface */ + 0x00, /* bAlternateSetting: Alternate setting */ + 0x01, /* bNumEndpoints: One endpoints used */ + 0x02, /* bInterfaceClass: Communication Interface Class */ + 0x02, /* bInterfaceSubClass: Abstract Control Model */ + 0x01, /* bInterfaceProtocol: Common AT commands */ + 0x00, /* iInterface: */ + + /*Header Functional Descriptor*/ + 0x05, /* bLength: Endpoint Descriptor size */ + 0x24, /* bDescriptorType: CS_INTERFACE */ + 0x00, /* bDescriptorSubtype: Header Func Desc */ + 0x10, /* bcdCDC: spec release number */ + 0x01, + + /*Call Management Functional Descriptor*/ + 0x05, /* bFunctionLength */ + 0x24, /* bDescriptorType: CS_INTERFACE */ + 0x01, /* bDescriptorSubtype: Call Management Func Desc */ + 0x00, /* bmCapabilities: D0+D1 */ + 0x01, /* bDataInterface: 1 */ + + /*ACM Functional Descriptor*/ + 0x04, /* bFunctionLength */ + 0x24, /* bDescriptorType: CS_INTERFACE */ + 0x02, /* bDescriptorSubtype: Abstract Control Management desc */ + 0x02, /* bmCapabilities */ + + /*Union Functional Descriptor*/ + 0x05, /* bFunctionLength */ + 0x24, /* bDescriptorType: CS_INTERFACE */ + 0x06, /* bDescriptorSubtype: Union func desc */ + 0x00, /* bMasterInterface: Communication class interface */ + 0x01, /* bSlaveInterface0: Data Class Interface */ + + /*Endpoint 2 Descriptor*/ + 0x07, /* bLength: Endpoint Descriptor size */ + USB_DESC_TYPE_ENDPOINT, /* bDescriptorType: Endpoint */ + CDC_CMD_EP, /* bEndpointAddress */ + 0x03, /* bmAttributes: Interrupt */ + LOBYTE(CDC_CMD_PACKET_SIZE), /* wMaxPacketSize: */ + HIBYTE(CDC_CMD_PACKET_SIZE), + 0x10, /* bInterval: */ + /*---------------------------------------------------------------------------*/ + + /*Data class interface descriptor*/ + 0x09, /* bLength: Endpoint Descriptor size */ + USB_DESC_TYPE_INTERFACE, /* bDescriptorType: */ + 0x01, /* bInterfaceNumber: Number of Interface */ + 0x00, /* bAlternateSetting: Alternate setting */ + 0x02, /* bNumEndpoints: Two endpoints used */ + 0x0A, /* bInterfaceClass: CDC */ + 0x00, /* bInterfaceSubClass: */ + 0x00, /* bInterfaceProtocol: */ + 0x00, /* iInterface: */ + + /*Endpoint OUT Descriptor*/ + 0x07, /* bLength: Endpoint Descriptor size */ + USB_DESC_TYPE_ENDPOINT, /* bDescriptorType: Endpoint */ + CDC_OUT_EP, /* bEndpointAddress */ + 0x02, /* bmAttributes: Bulk */ + LOBYTE(CDC_DATA_HS_MAX_PACKET_SIZE), /* wMaxPacketSize: */ + HIBYTE(CDC_DATA_HS_MAX_PACKET_SIZE), + 0x00, /* bInterval: ignore for Bulk transfer */ + + /*Endpoint IN Descriptor*/ + 0x07, /* bLength: Endpoint Descriptor size */ + USB_DESC_TYPE_ENDPOINT, /* bDescriptorType: Endpoint */ + CDC_IN_EP, /* bEndpointAddress */ + 0x02, /* bmAttributes: Bulk */ + LOBYTE(CDC_DATA_HS_MAX_PACKET_SIZE), /* wMaxPacketSize: */ + HIBYTE(CDC_DATA_HS_MAX_PACKET_SIZE), + 0x00 /* bInterval: ignore for Bulk transfer */ +} ; + + +/* USB CDC device Configuration Descriptor */ +__ALIGN_BEGIN uint8_t USBD_CDC_CfgFSDesc[USB_CDC_CONFIG_DESC_SIZ] __ALIGN_END = +{ + /*Configuration Descriptor*/ + 0x09, /* bLength: Configuration Descriptor size */ + USB_DESC_TYPE_CONFIGURATION, /* bDescriptorType: Configuration */ + USB_CDC_CONFIG_DESC_SIZ, /* wTotalLength:no of returned bytes */ + 0x00, + 0x02, /* bNumInterfaces: 2 interface */ + 0x01, /* bConfigurationValue: Configuration value */ + 0x00, /* iConfiguration: Index of string descriptor describing the configuration */ + 0xC0, /* bmAttributes: self powered */ + 0x32, /* MaxPower 0 mA */ + + /*---------------------------------------------------------------------------*/ + + /*Interface Descriptor */ + 0x09, /* bLength: Interface Descriptor size */ + USB_DESC_TYPE_INTERFACE, /* bDescriptorType: Interface */ + /* Interface descriptor type */ + 0x00, /* bInterfaceNumber: Number of Interface */ + 0x00, /* bAlternateSetting: Alternate setting */ + 0x01, /* bNumEndpoints: One endpoints used */ + 0x02, /* bInterfaceClass: Communication Interface Class */ + 0x02, /* bInterfaceSubClass: Abstract Control Model */ + 0x01, /* bInterfaceProtocol: Common AT commands */ + 0x00, /* iInterface: */ + + /*Header Functional Descriptor*/ + 0x05, /* bLength: Endpoint Descriptor size */ + 0x24, /* bDescriptorType: CS_INTERFACE */ + 0x00, /* bDescriptorSubtype: Header Func Desc */ + 0x10, /* bcdCDC: spec release number */ + 0x01, + + /*Call Management Functional Descriptor*/ + 0x05, /* bFunctionLength */ + 0x24, /* bDescriptorType: CS_INTERFACE */ + 0x01, /* bDescriptorSubtype: Call Management Func Desc */ + 0x00, /* bmCapabilities: D0+D1 */ + 0x01, /* bDataInterface: 1 */ + + /*ACM Functional Descriptor*/ + 0x04, /* bFunctionLength */ + 0x24, /* bDescriptorType: CS_INTERFACE */ + 0x02, /* bDescriptorSubtype: Abstract Control Management desc */ + 0x02, /* bmCapabilities */ + + /*Union Functional Descriptor*/ + 0x05, /* bFunctionLength */ + 0x24, /* bDescriptorType: CS_INTERFACE */ + 0x06, /* bDescriptorSubtype: Union func desc */ + 0x00, /* bMasterInterface: Communication class interface */ + 0x01, /* bSlaveInterface0: Data Class Interface */ + + /*Endpoint 2 Descriptor*/ + 0x07, /* bLength: Endpoint Descriptor size */ + USB_DESC_TYPE_ENDPOINT, /* bDescriptorType: Endpoint */ + CDC_CMD_EP, /* bEndpointAddress */ + 0x03, /* bmAttributes: Interrupt */ + LOBYTE(CDC_CMD_PACKET_SIZE), /* wMaxPacketSize: */ + HIBYTE(CDC_CMD_PACKET_SIZE), + 0x10, /* bInterval: */ + /*---------------------------------------------------------------------------*/ + + /*Data class interface descriptor*/ + 0x09, /* bLength: Endpoint Descriptor size */ + USB_DESC_TYPE_INTERFACE, /* bDescriptorType: */ + 0x01, /* bInterfaceNumber: Number of Interface */ + 0x00, /* bAlternateSetting: Alternate setting */ + 0x02, /* bNumEndpoints: Two endpoints used */ + 0x0A, /* bInterfaceClass: CDC */ + 0x00, /* bInterfaceSubClass: */ + 0x00, /* bInterfaceProtocol: */ + 0x00, /* iInterface: */ + + /*Endpoint OUT Descriptor*/ + 0x07, /* bLength: Endpoint Descriptor size */ + USB_DESC_TYPE_ENDPOINT, /* bDescriptorType: Endpoint */ + CDC_OUT_EP, /* bEndpointAddress */ + 0x02, /* bmAttributes: Bulk */ + LOBYTE(CDC_DATA_FS_MAX_PACKET_SIZE), /* wMaxPacketSize: */ + HIBYTE(CDC_DATA_FS_MAX_PACKET_SIZE), + 0x00, /* bInterval: ignore for Bulk transfer */ + + /*Endpoint IN Descriptor*/ + 0x07, /* bLength: Endpoint Descriptor size */ + USB_DESC_TYPE_ENDPOINT, /* bDescriptorType: Endpoint */ + CDC_IN_EP, /* bEndpointAddress */ + 0x02, /* bmAttributes: Bulk */ + LOBYTE(CDC_DATA_FS_MAX_PACKET_SIZE), /* wMaxPacketSize: */ + HIBYTE(CDC_DATA_FS_MAX_PACKET_SIZE), + 0x00 /* bInterval: ignore for Bulk transfer */ +} ; + +__ALIGN_BEGIN uint8_t USBD_CDC_OtherSpeedCfgDesc[USB_CDC_CONFIG_DESC_SIZ] __ALIGN_END = +{ + 0x09, /* bLength: Configuation Descriptor size */ + USB_DESC_TYPE_OTHER_SPEED_CONFIGURATION, + USB_CDC_CONFIG_DESC_SIZ, + 0x00, + 0x02, /* bNumInterfaces: 2 interfaces */ + 0x01, /* bConfigurationValue: */ + 0x04, /* iConfiguration: */ + 0xC0, /* bmAttributes: */ + 0x32, /* MaxPower 100 mA */ + + /*Interface Descriptor */ + 0x09, /* bLength: Interface Descriptor size */ + USB_DESC_TYPE_INTERFACE, /* bDescriptorType: Interface */ + /* Interface descriptor type */ + 0x00, /* bInterfaceNumber: Number of Interface */ + 0x00, /* bAlternateSetting: Alternate setting */ + 0x01, /* bNumEndpoints: One endpoints used */ + 0x02, /* bInterfaceClass: Communication Interface Class */ + 0x02, /* bInterfaceSubClass: Abstract Control Model */ + 0x01, /* bInterfaceProtocol: Common AT commands */ + 0x00, /* iInterface: */ + + /*Header Functional Descriptor*/ + 0x05, /* bLength: Endpoint Descriptor size */ + 0x24, /* bDescriptorType: CS_INTERFACE */ + 0x00, /* bDescriptorSubtype: Header Func Desc */ + 0x10, /* bcdCDC: spec release number */ + 0x01, + + /*Call Management Functional Descriptor*/ + 0x05, /* bFunctionLength */ + 0x24, /* bDescriptorType: CS_INTERFACE */ + 0x01, /* bDescriptorSubtype: Call Management Func Desc */ + 0x00, /* bmCapabilities: D0+D1 */ + 0x01, /* bDataInterface: 1 */ + + /*ACM Functional Descriptor*/ + 0x04, /* bFunctionLength */ + 0x24, /* bDescriptorType: CS_INTERFACE */ + 0x02, /* bDescriptorSubtype: Abstract Control Management desc */ + 0x02, /* bmCapabilities */ + + /*Union Functional Descriptor*/ + 0x05, /* bFunctionLength */ + 0x24, /* bDescriptorType: CS_INTERFACE */ + 0x06, /* bDescriptorSubtype: Union func desc */ + 0x00, /* bMasterInterface: Communication class interface */ + 0x01, /* bSlaveInterface0: Data Class Interface */ + + /*Endpoint 2 Descriptor*/ + 0x07, /* bLength: Endpoint Descriptor size */ + USB_DESC_TYPE_ENDPOINT , /* bDescriptorType: Endpoint */ + CDC_CMD_EP, /* bEndpointAddress */ + 0x03, /* bmAttributes: Interrupt */ + LOBYTE(CDC_CMD_PACKET_SIZE), /* wMaxPacketSize: */ + HIBYTE(CDC_CMD_PACKET_SIZE), + 0xFF, /* bInterval: */ + + /*---------------------------------------------------------------------------*/ + + /*Data class interface descriptor*/ + 0x09, /* bLength: Endpoint Descriptor size */ + USB_DESC_TYPE_INTERFACE, /* bDescriptorType: */ + 0x01, /* bInterfaceNumber: Number of Interface */ + 0x00, /* bAlternateSetting: Alternate setting */ + 0x02, /* bNumEndpoints: Two endpoints used */ + 0x0A, /* bInterfaceClass: CDC */ + 0x00, /* bInterfaceSubClass: */ + 0x00, /* bInterfaceProtocol: */ + 0x00, /* iInterface: */ + + /*Endpoint OUT Descriptor*/ + 0x07, /* bLength: Endpoint Descriptor size */ + USB_DESC_TYPE_ENDPOINT, /* bDescriptorType: Endpoint */ + CDC_OUT_EP, /* bEndpointAddress */ + 0x02, /* bmAttributes: Bulk */ + 0x40, /* wMaxPacketSize: */ + 0x00, + 0x00, /* bInterval: ignore for Bulk transfer */ + + /*Endpoint IN Descriptor*/ + 0x07, /* bLength: Endpoint Descriptor size */ + USB_DESC_TYPE_ENDPOINT, /* bDescriptorType: Endpoint */ + CDC_IN_EP, /* bEndpointAddress */ + 0x02, /* bmAttributes: Bulk */ + 0x40, /* wMaxPacketSize: */ + 0x00, + 0x00 /* bInterval */ +}; + +/** + * @} + */ + +/** @defgroup USBD_CDC_Private_Functions + * @{ + */ + +/** + * @brief USBD_CDC_Init + * Initialize the CDC interface + * @param pdev: device instance + * @param cfgidx: Configuration index + * @retval status + */ +static uint8_t USBD_CDC_Init (USBD_HandleTypeDef *pdev, + uint8_t cfgidx) +{ + uint8_t ret = 0; + USBD_CDC_HandleTypeDef *hcdc; + + if(pdev->dev_speed == USBD_SPEED_HIGH ) + { + /* Open EP IN */ + USBD_LL_OpenEP(pdev, + CDC_IN_EP, + USBD_EP_TYPE_BULK, + CDC_DATA_HS_IN_PACKET_SIZE); + + /* Open EP OUT */ + USBD_LL_OpenEP(pdev, + CDC_OUT_EP, + USBD_EP_TYPE_BULK, + CDC_DATA_HS_OUT_PACKET_SIZE); + + } + else + { + /* Open EP IN */ + USBD_LL_OpenEP(pdev, + CDC_IN_EP, + USBD_EP_TYPE_BULK, + CDC_DATA_FS_IN_PACKET_SIZE); + + /* Open EP OUT */ + USBD_LL_OpenEP(pdev, + CDC_OUT_EP, + USBD_EP_TYPE_BULK, + CDC_DATA_FS_OUT_PACKET_SIZE); + } + /* Open Command IN EP */ + USBD_LL_OpenEP(pdev, + CDC_CMD_EP, + USBD_EP_TYPE_INTR, + CDC_CMD_PACKET_SIZE); + + + pdev->pClassData = USBD_malloc(sizeof (USBD_CDC_HandleTypeDef)); + + if(pdev->pClassData == NULL) + { + ret = 1; + } + else + { + hcdc = (USBD_CDC_HandleTypeDef*) pdev->pClassData; + + /* Init physical Interface components */ + ((USBD_CDC_ItfTypeDef *)pdev->pUserData)->Init(); + + /* Init Xfer states */ + hcdc->TxState =0; + hcdc->RxState =0; + + if(pdev->dev_speed == USBD_SPEED_HIGH ) + { + /* Prepare Out endpoint to receive next packet */ + USBD_LL_PrepareReceive(pdev, + CDC_OUT_EP, + hcdc->RxBuffer, + CDC_DATA_HS_OUT_PACKET_SIZE); + } + else + { + /* Prepare Out endpoint to receive next packet */ + USBD_LL_PrepareReceive(pdev, + CDC_OUT_EP, + hcdc->RxBuffer, + CDC_DATA_FS_OUT_PACKET_SIZE); + } + + + } + return ret; +} + +/** + * @brief USBD_CDC_Init + * DeInitialize the CDC layer + * @param pdev: device instance + * @param cfgidx: Configuration index + * @retval status + */ +static uint8_t USBD_CDC_DeInit (USBD_HandleTypeDef *pdev, + uint8_t cfgidx) +{ + uint8_t ret = 0; + + /* Open EP IN */ + USBD_LL_CloseEP(pdev, + CDC_IN_EP); + + /* Open EP OUT */ + USBD_LL_CloseEP(pdev, + CDC_OUT_EP); + + /* Open Command IN EP */ + USBD_LL_CloseEP(pdev, + CDC_CMD_EP); + + + /* DeInit physical Interface components */ + if(pdev->pClassData != NULL) + { + ((USBD_CDC_ItfTypeDef *)pdev->pUserData)->DeInit(); + USBD_free(pdev->pClassData); + pdev->pClassData = NULL; + } + + return ret; +} + +/** + * @brief USBD_CDC_Setup + * Handle the CDC specific requests + * @param pdev: instance + * @param req: usb requests + * @retval status + */ +static uint8_t USBD_CDC_Setup (USBD_HandleTypeDef *pdev, + USBD_SetupReqTypedef *req) +{ + USBD_CDC_HandleTypeDef *hcdc = (USBD_CDC_HandleTypeDef*) pdev->pClassData; + static uint8_t ifalt = 0; + + switch (req->bmRequest & USB_REQ_TYPE_MASK) + { + case USB_REQ_TYPE_CLASS : + if (req->wLength) + { + if (req->bmRequest & 0x80) + { + ((USBD_CDC_ItfTypeDef *)pdev->pUserData)->Control(req->bRequest, + (uint8_t *)hcdc->data, + req->wLength); + USBD_CtlSendData (pdev, + (uint8_t *)hcdc->data, + req->wLength); + } + else + { + hcdc->CmdOpCode = req->bRequest; + hcdc->CmdLength = req->wLength; + + USBD_CtlPrepareRx (pdev, + (uint8_t *)hcdc->data, + req->wLength); + } + + } + else + { + ((USBD_CDC_ItfTypeDef *)pdev->pUserData)->Control(req->bRequest, + (uint8_t*)req, + 0); + } + break; + + case USB_REQ_TYPE_STANDARD: + switch (req->bRequest) + { + case USB_REQ_GET_INTERFACE : + USBD_CtlSendData (pdev, + &ifalt, + 1); + break; + + case USB_REQ_SET_INTERFACE : + break; + } + + default: + break; + } + return USBD_OK; +} + +/** + * @brief USBD_CDC_DataIn + * Data sent on non-control IN endpoint + * @param pdev: device instance + * @param epnum: endpoint number + * @retval status + */ +static uint8_t USBD_CDC_DataIn (USBD_HandleTypeDef *pdev, uint8_t epnum) +{ + USBD_CDC_HandleTypeDef *hcdc = (USBD_CDC_HandleTypeDef*) pdev->pClassData; + + if(pdev->pClassData != NULL) + { + + hcdc->TxState = 0; + + return USBD_OK; + } + else + { + return USBD_FAIL; + } +} + +/** + * @brief USBD_CDC_DataOut + * Data received on non-control Out endpoint + * @param pdev: device instance + * @param epnum: endpoint number + * @retval status + */ +static uint8_t USBD_CDC_DataOut (USBD_HandleTypeDef *pdev, uint8_t epnum) +{ + USBD_CDC_HandleTypeDef *hcdc = (USBD_CDC_HandleTypeDef*) pdev->pClassData; + + /* Get the received data length */ + hcdc->RxLength = USBD_LL_GetRxDataSize (pdev, epnum); + + /* USB data will be immediately processed, this allow next USB traffic being + NAKed till the end of the application Xfer */ + if(pdev->pClassData != NULL) + { + ((USBD_CDC_ItfTypeDef *)pdev->pUserData)->Receive(hcdc->RxBuffer, &hcdc->RxLength); + + return USBD_OK; + } + else + { + return USBD_FAIL; + } +} + + + +/** + * @brief USBD_CDC_DataOut + * Data received on non-control Out endpoint + * @param pdev: device instance + * @param epnum: endpoint number + * @retval status + */ +static uint8_t USBD_CDC_EP0_RxReady (USBD_HandleTypeDef *pdev) +{ + USBD_CDC_HandleTypeDef *hcdc = (USBD_CDC_HandleTypeDef*) pdev->pClassData; + + if((pdev->pUserData != NULL) && (hcdc->CmdOpCode != 0xFF)) + { + ((USBD_CDC_ItfTypeDef *)pdev->pUserData)->Control(hcdc->CmdOpCode, + (uint8_t *)hcdc->data, + hcdc->CmdLength); + hcdc->CmdOpCode = 0xFF; + + } + return USBD_OK; +} + +/** + * @brief USBD_CDC_GetFSCfgDesc + * Return configuration descriptor + * @param speed : current device speed + * @param length : pointer data length + * @retval pointer to descriptor buffer + */ +static uint8_t *USBD_CDC_GetFSCfgDesc (uint16_t *length) +{ + *length = sizeof (USBD_CDC_CfgFSDesc); + return USBD_CDC_CfgFSDesc; +} + +/** + * @brief USBD_CDC_GetHSCfgDesc + * Return configuration descriptor + * @param speed : current device speed + * @param length : pointer data length + * @retval pointer to descriptor buffer + */ +static uint8_t *USBD_CDC_GetHSCfgDesc (uint16_t *length) +{ + *length = sizeof (USBD_CDC_CfgHSDesc); + return USBD_CDC_CfgHSDesc; +} + +/** + * @brief USBD_CDC_GetCfgDesc + * Return configuration descriptor + * @param speed : current device speed + * @param length : pointer data length + * @retval pointer to descriptor buffer + */ +static uint8_t *USBD_CDC_GetOtherSpeedCfgDesc (uint16_t *length) +{ + *length = sizeof (USBD_CDC_OtherSpeedCfgDesc); + return USBD_CDC_OtherSpeedCfgDesc; +} + +/** +* @brief DeviceQualifierDescriptor +* return Device Qualifier descriptor +* @param length : pointer data length +* @retval pointer to descriptor buffer +*/ +uint8_t *USBD_CDC_GetDeviceQualifierDescriptor (uint16_t *length) +{ + *length = sizeof (USBD_CDC_DeviceQualifierDesc); + return USBD_CDC_DeviceQualifierDesc; +} + +/** +* @brief USBD_CDC_RegisterInterface + * @param pdev: device instance + * @param fops: CD Interface callback + * @retval status + */ +uint8_t USBD_CDC_RegisterInterface (USBD_HandleTypeDef *pdev, + USBD_CDC_ItfTypeDef *fops) +{ + uint8_t ret = USBD_FAIL; + + if(fops != NULL) + { + pdev->pUserData= fops; + ret = USBD_OK; + } + + return ret; +} + +/** + * @brief USBD_CDC_SetTxBuffer + * @param pdev: device instance + * @param pbuff: Tx Buffer + * @retval status + */ +uint8_t USBD_CDC_SetTxBuffer (USBD_HandleTypeDef *pdev, + uint8_t *pbuff, + uint16_t length) +{ + USBD_CDC_HandleTypeDef *hcdc = (USBD_CDC_HandleTypeDef*) pdev->pClassData; + + hcdc->TxBuffer = pbuff; + hcdc->TxLength = length; + + return USBD_OK; +} + + +/** + * @brief USBD_CDC_SetRxBuffer + * @param pdev: device instance + * @param pbuff: Rx Buffer + * @retval status + */ +uint8_t USBD_CDC_SetRxBuffer (USBD_HandleTypeDef *pdev, + uint8_t *pbuff) +{ + USBD_CDC_HandleTypeDef *hcdc = (USBD_CDC_HandleTypeDef*) pdev->pClassData; + + hcdc->RxBuffer = pbuff; + + return USBD_OK; +} + +/** + * @brief USBD_CDC_DataOut + * Data received on non-control Out endpoint + * @param pdev: device instance + * @param epnum: endpoint number + * @retval status + */ +uint8_t USBD_CDC_TransmitPacket(USBD_HandleTypeDef *pdev) +{ + USBD_CDC_HandleTypeDef *hcdc = (USBD_CDC_HandleTypeDef*) pdev->pClassData; + + if(pdev->pClassData != NULL) + { + if(hcdc->TxState == 0) + { + /* Tx Transfer in progress */ + hcdc->TxState = 1; + + /* Transmit next packet */ + USBD_LL_Transmit(pdev, + CDC_IN_EP, + hcdc->TxBuffer, + hcdc->TxLength); + + return USBD_OK; + } + else + { + return USBD_BUSY; + } + } + else + { + return USBD_FAIL; + } +} + + +/** + * @brief USBD_CDC_ReceivePacket + * prepare OUT Endpoint for reception + * @param pdev: device instance + * @retval status + */ +uint8_t USBD_CDC_ReceivePacket(USBD_HandleTypeDef *pdev) +{ + USBD_CDC_HandleTypeDef *hcdc = (USBD_CDC_HandleTypeDef*) pdev->pClassData; + + /* Suspend or Resume USB Out process */ + if(pdev->pClassData != NULL) + { + if(pdev->dev_speed == USBD_SPEED_HIGH ) + { + /* Prepare Out endpoint to receive next packet */ + USBD_LL_PrepareReceive(pdev, + CDC_OUT_EP, + hcdc->RxBuffer, + CDC_DATA_HS_OUT_PACKET_SIZE); + } + else + { + /* Prepare Out endpoint to receive next packet */ + USBD_LL_PrepareReceive(pdev, + CDC_OUT_EP, + hcdc->RxBuffer, + CDC_DATA_FS_OUT_PACKET_SIZE); + } + return USBD_OK; + } + else + { + return USBD_FAIL; + } +} +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ -- cgit v1.2.3