Mouse code for the MacroRat
mbed-dev/targets/TARGET_NUVOTON/TARGET_NUC472/device/StdDriver/nuc472_usbd.c
- Committer:
- sahilmgandhi
- Date:
- 2017-06-03
- Revision:
- 46:b156ef445742
- Parent:
- 18:6a4db94011d3
File content as of revision 46:b156ef445742:
/**************************************************************************//** * @file usbd.c * @version V1.00 * $Revision: 15 $ * $Date: 14/10/02 4:14p $ * @brief NUC472/NUC442 USBD driver source file * * @note * Copyright (C) 2014 Nuvoton Technology Corp. All rights reserved. *****************************************************************************/ #include "NUC472_442.h" /** @addtogroup NUC472_442_Device_Driver NUC472/NUC442 Device Driver @{ */ /** @addtogroup NUC472_442_USBD_Driver USBD Driver @{ */ /** @addtogroup NUC472_442_USBD_EXPORTED_FUNCTIONS USBD Exported Functions @{ */ /*--------------------------------------------------------------------------*/ /*!< Global variables for Control Pipe */ S_USBD_CMD_T gUsbCmd; S_USBD_INFO_T *g_usbd_sInfo; VENDOR_REQ g_usbd_pfnVendorRequest = NULL; CLASS_REQ g_usbd_pfnClassRequest = NULL; SET_INTERFACE_REQ g_usbd_pfnSetInterface = NULL; static uint8_t *g_usbd_CtrlInPointer = 0; static uint32_t g_usbd_UsbConfig = 0; static uint32_t g_usbd_UsbAltInterface = 0; static uint32_t g_usbd_CtrlMaxPktSize = 64; #ifdef __ICCARM__ #pragma data_alignment=4 static uint8_t g_usbd_buf[12]; #elif defined (__CC_ARM) __align(4) static uint8_t g_usbd_buf[12]; #elif defined ( __GNUC__ ) static uint8_t g_usbd_buf[12] __attribute__((aligned (4))); #endif uint32_t g_usbd_CtrlZero = 0; uint32_t g_usbd_UsbAddr = 0; uint32_t g_usbd_CtrlInSize = 0; uint32_t g_usbd_ShortPacket = 0; uint32_t volatile g_usbd_DmaDone = 0; uint32_t g_usbd_Configured = 0; /** * @brief USBD Initial * * @param[in] param Descriptor * @param[in] pfnClassReq Class Request Callback Function * @param[in] pfnSetInterface SetInterface Request Callback Function * * @return None * * @details This function is used to initial USBD. */ void USBD_Open(S_USBD_INFO_T *param, CLASS_REQ pfnClassReq, SET_INTERFACE_REQ pfnSetInterface) { g_usbd_sInfo = param; g_usbd_pfnClassRequest = pfnClassReq; g_usbd_pfnSetInterface = pfnSetInterface; /* get EP0 maximum packet size */ g_usbd_CtrlMaxPktSize = g_usbd_sInfo->gu8DevDesc[7]; /* Initial USB engine */ /* Enable PHY */ USBD_ENABLE_PHY(); /* wait PHY clock ready */ while (1) { USBD->EPAMPS = 0x20; if (USBD->EPAMPS == 0x20) break; } /* Force SE0, and then clear it to connect*/ USBD_SET_SE0(); } /** * @brief USBD Start * * @param[in] None * * @return None * * @details This function is used to start transfer */ void USBD_Start(void) { USBD_CLR_SE0(); } /** * @brief Process Setup Packet * * @param[in] None * * @return None * * @details This function is used to process Setup packet. */ void USBD_ProcessSetupPacket(void) { // Setup packet process gUsbCmd.bmRequestType = (uint8_t)(USBD->SETUP1_0 & 0xff); gUsbCmd.bRequest = (int8_t)(USBD->SETUP1_0 >> 8) & 0xff; gUsbCmd.wValue = (uint16_t)USBD->SETUP3_2; gUsbCmd.wIndex = (uint16_t)USBD->SETUP5_4; gUsbCmd.wLength = (uint16_t)USBD->SETUP7_6; /* USB device request in setup packet: offset 0, D[6..5]: 0=Standard, 1=Class, 2=Vendor, 3=Reserved */ switch (gUsbCmd.bmRequestType & 0x60) { case REQ_STANDARD: { // Standard USBD_StandardRequest(); break; } case REQ_CLASS: { // Class if (g_usbd_pfnClassRequest != NULL) { g_usbd_pfnClassRequest(); } break; } case REQ_VENDOR: { // Vendor if (g_usbd_pfnVendorRequest != NULL) { g_usbd_pfnVendorRequest(); } break; } default: { // reserved /* Setup error, stall the device */ USBD_SET_CEP_STATE(USBD_CEPCTL_STALLEN_Msk); break; } } } /** * @brief Get Descriptor request * * @param[in] None * * @return None * * @details This function is used to process GetDescriptor request. */ int USBD_GetDescriptor(void) { uint32_t u32Len; u32Len = gUsbCmd.wLength; g_usbd_CtrlZero = 0; switch ((gUsbCmd.wValue & 0xff00) >> 8) { // Get Device Descriptor case DESC_DEVICE: { u32Len = Minimum(u32Len, LEN_DEVICE); USBD_PrepareCtrlIn((uint8_t *)g_usbd_sInfo->gu8DevDesc, u32Len); break; } // Get Configuration Descriptor case DESC_CONFIG: { uint32_t u32TotalLen; if (USBD->OPER & 0x04) { /* high speed */ u32TotalLen = g_usbd_sInfo->gu8ConfigDesc[3]; u32TotalLen = g_usbd_sInfo->gu8ConfigDesc[2] + (u32TotalLen << 8); u32Len = Minimum(u32Len, u32TotalLen); if ((u32Len % g_usbd_CtrlMaxPktSize) == 0) g_usbd_CtrlZero = 1; USBD_PrepareCtrlIn((uint8_t *)g_usbd_sInfo->gu8ConfigDesc, u32Len); } else { /* full speed */ u32TotalLen = g_usbd_sInfo->gu8OtherConfigDesc[3]; u32TotalLen = g_usbd_sInfo->gu8OtherConfigDesc[2] + (u32TotalLen << 8); u32Len = Minimum(u32Len, u32TotalLen); if ((u32Len % g_usbd_CtrlMaxPktSize) == 0) g_usbd_CtrlZero = 1; USBD_PrepareCtrlIn((uint8_t *)g_usbd_sInfo->gu8OtherConfigDesc, u32Len); } break; } // Get Qualifier Descriptor case DESC_QUALIFIER: { u32Len = Minimum(u32Len, LEN_QUALIFIER); USBD_PrepareCtrlIn((uint8_t *)g_usbd_sInfo->gu8QualDesc, u32Len); break; } // Get Other Speed Descriptor - Full speed case DESC_OTHERSPEED: { uint32_t u32TotalLen; u32TotalLen = g_usbd_sInfo->gu8OtherConfigDesc[3]; u32TotalLen = g_usbd_sInfo->gu8OtherConfigDesc[2] + (u32TotalLen << 8); u32Len = Minimum(u32Len, u32TotalLen); if ((u32Len % g_usbd_CtrlMaxPktSize) == 0) g_usbd_CtrlZero = 1; USBD_PrepareCtrlIn((uint8_t *)g_usbd_sInfo->gu8OtherConfigDesc, u32Len); break; } // Get HID Descriptor case DESC_HID: { u32Len = Minimum(u32Len, LEN_HID); USBD_MemCopy(g_usbd_buf, (uint8_t *)&g_usbd_sInfo->gu8ConfigDesc[LEN_CONFIG+LEN_INTERFACE], u32Len); USBD_PrepareCtrlIn(g_usbd_buf, u32Len); break; } // Get Report Descriptor case DESC_HID_RPT: { if ((u32Len % g_usbd_CtrlMaxPktSize) == 0) g_usbd_CtrlZero = 1; switch (gUsbCmd.wIndex & 0xff) { case 0: { u32Len = Minimum(u32Len, g_usbd_sInfo->gu32HidReportSize[0]); USBD_PrepareCtrlIn((uint8_t *)g_usbd_sInfo->gu8HidReportDesc[0], u32Len); break; } case 1: { u32Len = Minimum(u32Len, g_usbd_sInfo->gu32HidReportSize[1]); USBD_PrepareCtrlIn((uint8_t *)g_usbd_sInfo->gu8HidReportDesc[1], u32Len); break; } case 2: { u32Len = Minimum(u32Len, g_usbd_sInfo->gu32HidReportSize[2]); USBD_PrepareCtrlIn((uint8_t *)g_usbd_sInfo->gu8HidReportDesc[2], u32Len); break; } } break; } // Get String Descriptor case DESC_STRING: { // Get Language if ((gUsbCmd.wValue & 0xff) == 0) { u32Len = Minimum(u32Len, 4); USBD_PrepareCtrlIn((uint8_t *)g_usbd_sInfo->gu8StrLangDesc, u32Len); } else { // Get String Descriptor switch (gUsbCmd.wValue & 0xff) { case 1: { u32Len = Minimum(u32Len, g_usbd_sInfo->gu8StrVendorDesc[0]); if ((u32Len % g_usbd_CtrlMaxPktSize) == 0) g_usbd_CtrlZero = 1; USBD_PrepareCtrlIn((uint8_t *)g_usbd_sInfo->gu8StrVendorDesc, u32Len); break; } case 2: { u32Len = Minimum(u32Len, g_usbd_sInfo->gu8StrProductDesc[0]); if ((u32Len % g_usbd_CtrlMaxPktSize) == 0) g_usbd_CtrlZero = 1; USBD_PrepareCtrlIn((uint8_t *)g_usbd_sInfo->gu8StrProductDesc, u32Len); break; } default: // Not support. Reply STALL. USBD_SET_CEP_STATE(USBD_CEPCTL_STALLEN_Msk); return 1; } } break; } default: // Not support. Reply STALL. USBD_SET_CEP_STATE(USBD_CEPCTL_STALLEN_Msk); return 1; } return 0; } /** * @brief Process USB standard request * * @param[in] None * * @return None * * @details This function is used to process USB Standard Request. */ void USBD_StandardRequest(void) { /* clear global variables for new request */ g_usbd_CtrlInPointer = 0; g_usbd_CtrlInSize = 0; if (gUsbCmd.bmRequestType & 0x80) { /* request data transfer direction */ // Device to host switch (gUsbCmd.bRequest) { case USBD_GET_CONFIGURATION: { // Return current configuration setting USBD_PrepareCtrlIn((uint8_t *)&g_usbd_UsbConfig, 1); USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_INTKIF_Msk); USBD_ENABLE_CEP_INT(USBD_CEPINTEN_INTKIEN_Msk); break; } case USBD_GET_DESCRIPTOR: { if (!USBD_GetDescriptor()) { USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_INTKIF_Msk); USBD_ENABLE_CEP_INT(USBD_CEPINTEN_INTKIEN_Msk); } break; } case USBD_GET_INTERFACE: { // Return current interface setting USBD_PrepareCtrlIn((uint8_t *)&g_usbd_UsbAltInterface, 1); USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_INTKIF_Msk); USBD_ENABLE_CEP_INT(USBD_CEPINTEN_INTKIEN_Msk); break; } case USBD_GET_STATUS: { // Device if (gUsbCmd.bmRequestType == 0x80) { if (g_usbd_sInfo->gu8ConfigDesc[7] & 0x40) g_usbd_buf[0] = 1; // Self-Powered else g_usbd_buf[0] = 0; // bus-Powered } // Interface else if (gUsbCmd.bmRequestType == 0x81) g_usbd_buf[0] = 0; // Endpoint else if (gUsbCmd.bmRequestType == 0x82) { uint8_t ep = gUsbCmd.wIndex & 0xF; g_usbd_buf[0] = USBD_GetStall(ep)? 1 : 0; } g_usbd_buf[1] = 0; USBD_PrepareCtrlIn(g_usbd_buf, 2); USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_INTKIF_Msk); USBD_ENABLE_CEP_INT(USBD_CEPINTEN_INTKIEN_Msk); break; } default: { /* Setup error, stall the device */ USBD_SET_CEP_STATE(USBD_CEPCTL_STALLEN_Msk); break; } } } else { // Host to device switch (gUsbCmd.bRequest) { case USBD_CLEAR_FEATURE: { /* Status stage */ USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_STSDONEIF_Msk); USBD_SET_CEP_STATE(USB_CEPCTL_NAKCLR); USBD_ENABLE_CEP_INT(USBD_CEPINTEN_STSDONEIEN_Msk); break; } case USBD_SET_ADDRESS: { g_usbd_UsbAddr = (uint8_t)gUsbCmd.wValue; // DATA IN for end of setup /* Status Stage */ USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_STSDONEIF_Msk); USBD_SET_CEP_STATE(USB_CEPCTL_NAKCLR); USBD_ENABLE_CEP_INT(USBD_CEPINTEN_STSDONEIEN_Msk); break; } case USBD_SET_CONFIGURATION: { g_usbd_UsbConfig = (uint8_t)gUsbCmd.wValue; g_usbd_Configured = 1; // DATA IN for end of setup /* Status stage */ USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_STSDONEIF_Msk); USBD_SET_CEP_STATE(USB_CEPCTL_NAKCLR); USBD_ENABLE_CEP_INT(USBD_CEPINTEN_STSDONEIEN_Msk); break; } case USBD_SET_FEATURE: { /* Status stage */ USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_STSDONEIF_Msk); USBD_SET_CEP_STATE(USB_CEPCTL_NAKCLR); USBD_ENABLE_CEP_INT(USBD_CEPINTEN_STSDONEIEN_Msk); break; } case USBD_SET_INTERFACE: { g_usbd_UsbAltInterface = (uint8_t)gUsbCmd.wValue; if (g_usbd_pfnSetInterface != NULL) g_usbd_pfnSetInterface(g_usbd_UsbAltInterface); /* Status stage */ USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_STSDONEIF_Msk); USBD_SET_CEP_STATE(USB_CEPCTL_NAKCLR); USBD_ENABLE_CEP_INT(USBD_CEPINTEN_STSDONEIEN_Msk); break; } default: { /* Setup error, stall the device */ USBD_SET_CEP_STATE(USBD_CEPCTL_STALLEN_Msk); break; } } } } /** * @brief Update Device State * * @param[in] None * * @return None * * @details This function is used to update Device state when Setup packet complete */ void USBD_UpdateDeviceState(void) { switch (gUsbCmd.bRequest) { case USBD_SET_ADDRESS: { USBD_SET_ADDR(g_usbd_UsbAddr); break; } case USBD_SET_FEATURE: { if(gUsbCmd.wValue == FEATURE_ENDPOINT_HALT) USBD_SetStall(gUsbCmd.wIndex & 0xF); break; } case USBD_CLEAR_FEATURE: { if(gUsbCmd.wValue == FEATURE_ENDPOINT_HALT) USBD_ClearStall(gUsbCmd.wIndex & 0xF); break; } default: ; } } /** * @brief Prepare Control IN transaction * * @param[in] pu8Buf Control IN data pointer * @param[in] u32Size IN transfer size * * @return None * * @details This function is used to prepare Control IN transfer */ void USBD_PrepareCtrlIn(uint8_t *pu8Buf, uint32_t u32Size) { g_usbd_CtrlInPointer = pu8Buf; g_usbd_CtrlInSize = u32Size; } /** * @brief Start Control IN transfer * * @param[in] None * * @return None * * @details This function is used to start Control IN */ void USBD_CtrlIn(void) { int volatile i; uint32_t volatile count; // Process remained data if(g_usbd_CtrlInSize >= g_usbd_CtrlMaxPktSize) { // Data size > MXPLD for (i=0; i<(g_usbd_CtrlMaxPktSize >> 2); i++, g_usbd_CtrlInPointer+=4) USBD->CEPDAT = *(uint32_t *)g_usbd_CtrlInPointer; USBD_START_CEP_IN(g_usbd_CtrlMaxPktSize); g_usbd_CtrlInSize -= g_usbd_CtrlMaxPktSize; } else { // Data size <= MXPLD for (i=0; i<(g_usbd_CtrlInSize >> 2); i++, g_usbd_CtrlInPointer+=4) USBD->CEPDAT = *(uint32_t *)g_usbd_CtrlInPointer; count = g_usbd_CtrlInSize % 4; for (i=0; i<count; i++) USBD->CEPDAT_BYTE = *(uint8_t *)(g_usbd_CtrlInPointer + i); USBD_START_CEP_IN(g_usbd_CtrlInSize); g_usbd_CtrlInPointer = 0; g_usbd_CtrlInSize = 0; } } /** * @brief Start Control OUT transaction * * @param[in] pu8Buf Control OUT data pointer * @param[in] u32Size OUT transfer size * * @return None * * @details This function is used to start Control OUT transfer */ void USBD_CtrlOut(uint8_t *pu8Buf, uint32_t u32Size) { int volatile i; while(1) { if (USBD->CEPINTSTS & USBD_CEPINTSTS_RXPKIF_Msk) { for (i=0; i<u32Size; i++) *(uint8_t *)(pu8Buf + i) = USBD->CEPDAT_BYTE; USBD->CEPINTSTS = USBD_CEPINTSTS_RXPKIF_Msk; break; } } } /** * @brief Clear all software flags * * @param[in] None * * @return None * * @details This function is used to clear all software control flag */ void USBD_SwReset(void) { // Reset all variables for protocol g_usbd_UsbAddr = 0; g_usbd_DmaDone = 0; g_usbd_ShortPacket = 0; g_usbd_Configured = 0; // Reset USB device address USBD_SET_ADDR(0); } /** * @brief USBD Set Vendor Request * * @param[in] pfnVendorReq Vendor Request Callback Function * * @return None * * @details This function is used to set USBD vendor request callback function */ void USBD_SetVendorRequest(VENDOR_REQ pfnVendorReq) { g_usbd_pfnVendorRequest = pfnVendorReq; } /*@}*/ /* end of group NUC472_442_GPIO_EXPORTED_FUNCTIONS */ /*@}*/ /* end of group NUC472_442_GPIO_Driver */ /*@}*/ /* end of group NUC472_442_Device_Driver */ /*** (C) COPYRIGHT 2013 Nuvoton Technology Corp. ***/