usb_core.rar_c# usb_usb core.c_usb-fs_usb_core.c

/******************** (C) COPYRIGHT 2009 STMicroelectronics ******************** * File Name : usb_core.c * Author : MCD Application Team * Version : V3.0.0 * Date : 04/06/2009 * Description : Standard protocol processing (USB v2.0) ******************************************************************************** * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME. * AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT, * INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE * CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING * INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. *******************************************************************************/ /* Includes ------------------------------------------------------------------*/ #include "usb_lib.h" /* Private typedef -----------------------------------------------------------*/ /* Private define ------------------------------------------------------------*/ #define ValBit(VAR,Place) (VAR & (1 << Place)) #define SetBit(VAR,Place) (VAR |= (1 << Place)) #define ClrBit(VAR,Place) (VAR &= ((1 << Place) ^ 255)) #define Send0LengthData() { _SetEPTxCount(ENDP0, 0); \ vSetEPTxStatus(EP_TX_VALID); \ } #define vSetEPRxStatus(st) (SaveRState = st) #define vSetEPTxStatus(st) (SaveTState = st) #define USB_StatusIn() Send0LengthData() #define USB_StatusOut() vSetEPRxStatus(EP_RX_VALID) #define StatusInfo0 StatusInfo.bw.bb1 /* Reverse bb0 & bb1 */ #define StatusInfo1 StatusInfo.bw.bb0 /* Private macro -------------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ uint16_t_uint8_t StatusInfo; bool Data_Mul_MaxPacketSize = FALSE; /* Private function prototypes -----------------------------------------------*/ static void DataStageOut(void); static void DataStageIn(void); static void NoData_Setup0(void); static void Data_Setup0(void); /* Private functions ---------------------------------------------------------*/ /******************************************************************************* * Function Name : Standard_GetConfiguration. * Description : Return the current configuration variable address. * Input : Length - How many bytes are needed. * Output : None. * Return : Return 1 , if the request is invalid when "Length" is 0. * Return "Buffer" if the "Length" is not 0. *******************************************************************************/ uint8_t *Standard_GetConfiguration(uint16_t Length) { if (Length == 0) { pInformation->Ctrl_Info.Usb_wLength = sizeof(pInformation->Current_Configuration); return 0; } pUser_Standard_Requests->User_GetConfiguration(); return (uint8_t *)&pInformation->Current_Configuration; } /******************************************************************************* * Function Name : Standard_SetConfiguration. * Description : This routine is called to set the configuration value * Then each class should configure device themself. * Input : None. * Output : None. * Return : Return USB_SUCCESS, if the request is performed. * Return USB_UNSUPPORT, if the request is invalid. *******************************************************************************/ RESULT Standard_SetConfiguration(void) { if ((pInformation->USBwValue0 <= Device_Table.Total_Configuration) && (pInformation->USBwValue1 == 0) && (pInformation->USBwIndex == 0)) /*call Back usb spec 2.0*/ { pInformation->Current_Configuration = pInformation->USBwValue0; pUser_Standard_Requests->User_SetConfiguration(); return USB_SUCCESS; } else { return USB_UNSUPPORT; } } /******************************************************************************* * Function Name : Standard_GetInterface. * Description : Return the Alternate Setting of the current interface. * Input : Length - How many bytes are needed. * Output : None. * Return : Return 0, if the request is invalid when "Length" is 0. * Return "Buffer" if the "Length" is not 0. *******************************************************************************/ uint8_t *Standard_GetInterface(uint16_t Length) { if (Length == 0) { pInformation->Ctrl_Info.Usb_wLength = sizeof(pInformation->Current_AlternateSetting); return 0; } pUser_Standard_Requests->User_GetInterface(); return (uint8_t *)&pInformation->Current_AlternateSetting; } /******************************************************************************* * Function Name : Standard_SetInterface. * Description : This routine is called to set the interface. * Then each class should configure the interface them self. * Input : None. * Output : None. * Return : - Return USB_SUCCESS, if the request is performed. * - Return USB_UNSUPPORT, if the request is invalid. *******************************************************************************/ RESULT Standard_SetInterface(void) { RESULT Re; /*Test if the specified Interface and Alternate Setting are supported by the application Firmware*/ Re = (*pProperty->Class_Get_Interface_Setting)(pInformation->USBwIndex0, pInformation->USBwValue0); if (pInformation->Current_Configuration != 0) { if ((Re != USB_SUCCESS) || (pInformation->USBwIndex1 != 0) || (pInformation->USBwValue1 != 0)) { return USB_UNSUPPORT; } else if (Re == USB_SUCCESS) { pUser_Standard_Requests->User_SetInterface(); pInformation->Current_Interface = pInformation->USBwIndex0; pInformation->Current_AlternateSetting = pInformation->USBwValue0; return USB_SUCCESS; } } return USB_UNSUPPORT; } /******************************************************************************* * Function Name : Standard_GetStatus. * Description : Copy the device request data to "StatusInfo buffer". * Input : - Length - How many bytes are needed. * Output : None. * Return : Return 0, if the request is at end of data block, * or is invalid when "Length" is 0. *******************************************************************************/ uint8_t *Standard_GetStatus(uint16_t Length) { if (Length == 0) { pInformation->Ctrl_Info.Usb_wLength = 2; return 0; } StatusInfo.w = 0; /* Reset Status Information */ if (Type_Recipient == (STANDARD_REQUEST | DEVICE_RECIPIENT)) { /*Get Device Status */ uint8_t Feature = pInformation->Current_Feature; /* Remote Wakeup enabled */ if (ValBit(Feature, 5)) { SetBit(StatusInfo0, 1); } /* Bus-powered */ if (ValBit(Feature, 6)) { ClrBit(StatusInfo0, 0); } else /* Self-powered */ { SetBit(StatusInfo0, 0); } } /*Interface Status*/ else if (Type_Recipient == (STANDARD_REQUEST | INTERFACE_RECIPIENT)) { return (uint8_t *)&StatusInfo; } /*Get EndPoint Status*/ else if (Type_Recipient == (STANDARD_REQUEST | ENDPOINT_RECIPIENT)) { uint8_t Related_Endpoint; uint8_t wIndex0 = pInformation->USBwIndex0; Related_Endpoint = (wIndex0 & 0x0f); if (ValBit(wIndex0, 7)) { /* IN endpoint */ if (_GetTxStallStatus(Related_Endpoint)) { SetBit(StatusInfo0, 0); /* IN Endpoint stalled */ } } else { /* OUT endpoint */ if (_GetRxStallStatus(Related_Endpoint)) {