mbed official
mbed library sources. Supersedes mbed-src.
Dependents: Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more
Diff: targets/TARGET_NUVOTON/TARGET_M451/device/StdDriver/m451_usbd.c
- Revision:
- 149:156823d33999
- Child:
- 154:37f96f9d4de2
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/TARGET_NUVOTON/TARGET_M451/device/StdDriver/m451_usbd.c Fri Oct 28 11:17:30 2016 +0100
@@ -0,0 +1,728 @@
+/**************************************************************************//**
+ * @file usbd.c
+ * @version V1.00
+ * $Revision: 21 $
+ * $Date: 15/08/21 3:34p $
+ * @brief M451 series USBD driver source file
+ *
+ * @note
+ * Copyright (C) 2014~2015 Nuvoton Technology Corp. All rights reserved.
+*****************************************************************************/
+
+#include <string.h>
+#include "M451Series.h"
+
+#if 0
+#define DBG_PRINTF printf
+#else
+#define DBG_PRINTF(...)
+#endif
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/** @addtogroup Standard_Driver Standard Driver
+ @{
+*/
+
+/** @addtogroup USBD_Driver USBD Driver
+ @{
+*/
+
+
+/** @addtogroup USBD_EXPORTED_FUNCTIONS USBD Exported Functions
+ @{
+*/
+
+/* Global variables for Control Pipe */
+uint8_t g_usbd_SetupPacket[8] = {0}; /*!< Setup packet buffer */
+volatile uint8_t g_usbd_RemoteWakeupEn = 0; /*!< Remote wake up function enable flag */
+
+/**
+ * @cond HIDDEN_SYMBOLS
+ */
+static volatile uint8_t *g_usbd_CtrlInPointer = 0;
+static volatile uint32_t g_usbd_CtrlInSize = 0;
+static volatile uint8_t *g_usbd_CtrlOutPointer = 0;
+static volatile uint32_t g_usbd_CtrlOutSize = 0;
+static volatile uint32_t g_usbd_CtrlOutSizeLimit = 0;
+static volatile uint32_t g_usbd_UsbAddr = 0;
+static volatile uint32_t g_usbd_UsbConfig = 0;
+static volatile uint32_t g_usbd_CtrlMaxPktSize = 8;
+static volatile uint32_t g_usbd_UsbAltInterface = 0;
+/**
+ * @endcond
+ */
+
+const S_USBD_INFO_T *g_usbd_sInfo; /*!< A pointer for USB information structure */
+
+VENDOR_REQ g_usbd_pfnVendorRequest = NULL; /*!< USB Vendor Request Functional Pointer */
+CLASS_REQ g_usbd_pfnClassRequest = NULL; /*!< USB Class Request Functional Pointer */
+SET_INTERFACE_REQ g_usbd_pfnSetInterface = NULL; /*!< USB Set Interface Functional Pointer */
+SET_CONFIG_CB g_usbd_pfnSetConfigCallback = NULL; /*!< USB Set configuration callback function pointer */
+uint32_t g_u32EpStallLock = 0; /*!< Bit map flag to lock specified EP when SET_FEATURE */
+
+/**
+ * @brief This function makes USBD module to be ready to use
+ *
+ * @param[in] param The structure of USBD information.
+ * @param[in] pfnClassReq USB Class request callback function.
+ * @param[in] pfnSetInterface USB Set Interface request callback function.
+ *
+ * @return None
+ *
+ * @details This function will enable USB controller, USB PHY transceiver and pull-up resistor of USB_D+ pin. USB PHY will drive SE0 to bus.
+ */
+void USBD_Open(const 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 */
+ USBD->ATTR = 0x7D0;
+ /* Force SE0 */
+ USBD_SET_SE0();
+}
+
+/**
+ * @brief This function makes USB host to recognize the device
+ *
+ * @param None
+ *
+ * @return None
+ *
+ * @details Enable WAKEUP, FLDET, USB and BUS interrupts. Disable software-disconnect function after 100ms delay with SysTick timer.
+ */
+void USBD_Start(void)
+{
+ CLK_SysTickDelay(100000);
+ /* Disable software-disconnect function */
+ USBD_CLR_SE0();
+
+ /* Clear USB-related interrupts before enable interrupt */
+ USBD_CLR_INT_FLAG(USBD_INT_BUS | USBD_INT_USB | USBD_INT_FLDET | USBD_INT_WAKEUP);
+
+ /* Enable USB-related interrupts. */
+ USBD_ENABLE_INT(USBD_INT_BUS | USBD_INT_USB | USBD_INT_FLDET | USBD_INT_WAKEUP);
+}
+
+/**
+ * @brief Get the received SETUP packet
+ *
+ * @param[in] buf A buffer pointer used to store 8-byte SETUP packet.
+ *
+ * @return None
+ *
+ * @details Store SETUP packet to a user-specified buffer.
+ *
+ */
+void USBD_GetSetupPacket(uint8_t *buf)
+{
+ USBD_MemCopy(buf, g_usbd_SetupPacket, 8);
+}
+
+/**
+ * @brief Process SETUP packet
+ *
+ * @param None
+ *
+ * @return None
+ *
+ * @details Parse SETUP packet and perform the corresponding action.
+ *
+ */
+void USBD_ProcessSetupPacket(void)
+{
+ /* Get SETUP packet from USB buffer */
+ USBD_MemCopy(g_usbd_SetupPacket, (uint8_t *)USBD_BUF_BASE, 8);
+ /* Check the request type */
+ switch(g_usbd_SetupPacket[0] & 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_EP_STALL(EP0);
+ USBD_SET_EP_STALL(EP1);
+ break;
+ }
+ }
+}
+
+/**
+ * @brief Process GetDescriptor request
+ *
+ * @param None
+ *
+ * @return None
+ *
+ * @details Parse GetDescriptor request and perform the corresponding action.
+ *
+ */
+void USBD_GetDescriptor(void)
+{
+ uint32_t u32Len;
+
+ u32Len = 0;
+ u32Len = g_usbd_SetupPacket[7];
+ u32Len <<= 8;
+ u32Len += g_usbd_SetupPacket[6];
+
+ switch(g_usbd_SetupPacket[3])
+ {
+ // Get Device Descriptor
+ case DESC_DEVICE:
+ {
+ u32Len = Minimum(u32Len, LEN_DEVICE);
+ DBG_PRINTF("Get device desc, %d\n", u32Len);
+
+ USBD_PrepareCtrlIn((uint8_t *)g_usbd_sInfo->gu8DevDesc, u32Len);
+
+ break;
+ }
+ // Get Configuration Descriptor
+ case DESC_CONFIG:
+ {
+ uint32_t u32TotalLen;
+
+ u32TotalLen = g_usbd_sInfo->gu8ConfigDesc[3];
+ u32TotalLen = g_usbd_sInfo->gu8ConfigDesc[2] + (u32TotalLen << 8);
+
+ DBG_PRINTF("Get config desc len %d, acture len %d\n", u32Len, u32TotalLen);
+ u32Len = Minimum(u32Len, u32TotalLen);
+ DBG_PRINTF("Minimum len %d\n", u32Len);
+
+ USBD_PrepareCtrlIn((uint8_t *)g_usbd_sInfo->gu8ConfigDesc, u32Len);
+
+ break;
+ }
+ // Get HID Descriptor
+ case DESC_HID:
+ {
+ /* CV3.0 HID Class Descriptor Test,
+ Need to indicate index of the HID Descriptor within gu8ConfigDescriptor, specifically HID Composite device. */
+ uint32_t u32ConfigDescOffset; // u32ConfigDescOffset is configuration descriptor offset (HID descriptor start index)
+ u32Len = Minimum(u32Len, LEN_HID);
+ DBG_PRINTF("Get HID desc, %d\n", u32Len);
+
+ u32ConfigDescOffset = g_usbd_sInfo->gu32ConfigHidDescIdx[g_usbd_SetupPacket[4]];
+ USBD_PrepareCtrlIn((uint8_t *)&g_usbd_sInfo->gu8ConfigDesc[u32ConfigDescOffset], u32Len);
+
+ break;
+ }
+ // Get Report Descriptor
+ case DESC_HID_RPT:
+ {
+ DBG_PRINTF("Get HID report, %d\n", u32Len);
+
+ u32Len = Minimum(u32Len, g_usbd_sInfo->gu32HidReportSize[g_usbd_SetupPacket[4]]);
+ USBD_PrepareCtrlIn((uint8_t *)g_usbd_sInfo->gu8HidReportDesc[g_usbd_SetupPacket[4]], u32Len);
+ break;
+ }
+ // Get String Descriptor
+ case DESC_STRING:
+ {
+ // Get String Descriptor
+ if(g_usbd_SetupPacket[2] < 4)
+ {
+ u32Len = Minimum(u32Len, g_usbd_sInfo->gu8StringDesc[g_usbd_SetupPacket[2]][0]);
+ DBG_PRINTF("Get string desc %d\n", u32Len);
+
+ USBD_PrepareCtrlIn((uint8_t *)g_usbd_sInfo->gu8StringDesc[g_usbd_SetupPacket[2]], u32Len);
+
+
+ break;
+ }
+ else
+ {
+ // Not support. Reply STALL.
+ USBD_SET_EP_STALL(EP0);
+ USBD_SET_EP_STALL(EP1);
+
+ DBG_PRINTF("Unsupported string desc (%d). Stall ctrl pipe.\n", g_usbd_SetupPacket[2]);
+
+ break;
+ }
+ }
+ default:
+ // Not support. Reply STALL.
+ USBD_SET_EP_STALL(EP0);
+ USBD_SET_EP_STALL(EP1);
+
+ DBG_PRINTF("Unsupported get desc type. stall ctrl pipe\n");
+
+ break;
+ }
+}
+
+/**
+ * @brief Process standard request
+ *
+ * @param None
+ *
+ * @return None
+ *
+ * @details Parse standard request and perform the corresponding action.
+ *
+ */
+void USBD_StandardRequest(void)
+{
+
+ /* clear global variables for new request */
+ g_usbd_CtrlInPointer = 0;
+ g_usbd_CtrlInSize = 0;
+
+ if(g_usbd_SetupPacket[0] & 0x80) /* request data transfer direction */
+ {
+ // Device to host
+ switch(g_usbd_SetupPacket[1])
+ {
+ case GET_CONFIGURATION:
+ {
+ // Return current configuration setting
+ /* Data stage */
+ M8(USBD_BUF_BASE + USBD_GET_EP_BUF_ADDR(EP0)) = g_usbd_UsbConfig;
+ USBD_SET_DATA1(EP0);
+ USBD_SET_PAYLOAD_LEN(EP0, 1);
+ /* Status stage */
+ USBD_PrepareCtrlOut(0,0);
+
+ DBG_PRINTF("Get configuration\n");
+
+ break;
+ }
+ case GET_DESCRIPTOR:
+ {
+ USBD_GetDescriptor();
+ USBD_PrepareCtrlOut(0, 0); /* For status stage */
+ break;
+ }
+ case GET_INTERFACE:
+ {
+ // Return current interface setting
+ /* Data stage */
+ M8(USBD_BUF_BASE + USBD_GET_EP_BUF_ADDR(EP0)) = g_usbd_UsbAltInterface;
+ USBD_SET_DATA1(EP0);
+ USBD_SET_PAYLOAD_LEN(EP0, 1);
+ /* Status stage */
+ USBD_PrepareCtrlOut(0, 0);
+
+ DBG_PRINTF("Get interface\n");
+
+ break;
+ }
+ case GET_STATUS:
+ {
+ // Device
+ if(g_usbd_SetupPacket[0] == 0x80)
+ {
+ uint8_t u8Tmp;
+
+ u8Tmp = 0;
+ if(g_usbd_sInfo->gu8ConfigDesc[7] & 0x40) u8Tmp |= 1; // Self-Powered/Bus-Powered.
+ if(g_usbd_sInfo->gu8ConfigDesc[7] & 0x20) u8Tmp |= (g_usbd_RemoteWakeupEn << 1); // Remote wake up
+
+ M8(USBD_BUF_BASE + USBD_GET_EP_BUF_ADDR(EP0)) = u8Tmp;
+
+ }
+ // Interface
+ else if(g_usbd_SetupPacket[0] == 0x81)
+ M8(USBD_BUF_BASE + USBD_GET_EP_BUF_ADDR(EP0)) = 0;
+ // Endpoint
+ else if(g_usbd_SetupPacket[0] == 0x82)
+ {
+ uint8_t ep = g_usbd_SetupPacket[4] & 0xF;
+ M8(USBD_BUF_BASE + USBD_GET_EP_BUF_ADDR(EP0)) = USBD_GetStall(ep) ? 1 : 0;
+ }
+
+ M8(USBD_BUF_BASE + USBD_GET_EP_BUF_ADDR(EP0) + 1) = 0;
+ /* Data stage */
+ USBD_SET_DATA1(EP0);
+ USBD_SET_PAYLOAD_LEN(EP0, 2);
+ /* Status stage */
+ USBD_PrepareCtrlOut(0, 0);
+
+ DBG_PRINTF("Get status\n");
+
+ break;
+ }
+ default:
+ {
+ /* Setup error, stall the device */
+ USBD_SET_EP_STALL(EP0);
+ USBD_SET_EP_STALL(EP1);
+
+ DBG_PRINTF("Unknown request. stall ctrl pipe.\n");
+
+ break;
+ }
+ }
+ }
+ else
+ {
+ // Host to device
+ switch(g_usbd_SetupPacket[1])
+ {
+ case CLEAR_FEATURE:
+ {
+ if(g_usbd_SetupPacket[2] == FEATURE_ENDPOINT_HALT)
+ {
+ int32_t epNum, i;
+
+ /* EP number stall is not allow to be clear in MSC class "Error Recovery Test".
+ a flag: g_u32EpStallLock is added to support it */
+ epNum = g_usbd_SetupPacket[4] & 0xF;
+ for(i = 0; i < USBD_MAX_EP; i++)
+ {
+ if(((USBD->EP[i].CFG & 0xF) == epNum) && ((g_u32EpStallLock & (1 << i)) == 0))
+ {
+ USBD->EP[i].CFGP &= ~USBD_CFGP_SSTALL_Msk;
+ DBG_PRINTF("Clr stall ep%d %x\n", i, USBD->EP[i].CFGP);
+ }
+ }
+ }
+ else if(g_usbd_SetupPacket[2] == FEATURE_DEVICE_REMOTE_WAKEUP)
+ g_usbd_RemoteWakeupEn = 0;
+
+ /* Status stage */
+ USBD_SET_DATA1(EP0);
+ USBD_SET_PAYLOAD_LEN(EP0, 0);
+
+ DBG_PRINTF("Clear feature op %d\n", g_usbd_SetupPacket[2]);
+
+ break;
+ }
+ case SET_ADDRESS:
+ {
+ g_usbd_UsbAddr = g_usbd_SetupPacket[2];
+ DBG_PRINTF("Set addr to %d\n", g_usbd_UsbAddr);
+
+ // DATA IN for end of setup
+ /* Status Stage */
+ USBD_SET_DATA1(EP0);
+ USBD_SET_PAYLOAD_LEN(EP0, 0);
+
+ break;
+ }
+ case SET_CONFIGURATION:
+ {
+ g_usbd_UsbConfig = g_usbd_SetupPacket[2];
+
+ if(g_usbd_pfnSetConfigCallback)
+ g_usbd_pfnSetConfigCallback();
+
+ // DATA IN for end of setup
+ /* Status stage */
+ USBD_SET_DATA1(EP0);
+ USBD_SET_PAYLOAD_LEN(EP0, 0);
+
+ DBG_PRINTF("Set config to %d\n", g_usbd_UsbConfig);
+
+ break;
+ }
+ case SET_FEATURE:
+ {
+ if(g_usbd_SetupPacket[2] == FEATURE_ENDPOINT_HALT)
+ {
+ USBD_SetStall(g_usbd_SetupPacket[4] & 0xF);
+ DBG_PRINTF("Set feature. stall ep %d\n", g_usbd_SetupPacket[4] & 0xF);
+ }
+ else if(g_usbd_SetupPacket[2] == FEATURE_DEVICE_REMOTE_WAKEUP)
+ {
+ g_usbd_RemoteWakeupEn = 1;
+ DBG_PRINTF("Set feature. enable remote wakeup\n");
+ }
+
+ /* Status stage */
+ USBD_SET_DATA1(EP0);
+ USBD_SET_PAYLOAD_LEN(EP0, 0);
+
+
+
+ break;
+ }
+ case SET_INTERFACE:
+ {
+ g_usbd_UsbAltInterface = g_usbd_SetupPacket[2];
+ if(g_usbd_pfnSetInterface != NULL)
+ g_usbd_pfnSetInterface();
+ /* Status stage */
+ USBD_SET_DATA1(EP0);
+ USBD_SET_PAYLOAD_LEN(EP0, 0);
+
+ DBG_PRINTF("Set interface to %d\n", g_usbd_UsbAltInterface);
+
+ break;
+ }
+ default:
+ {
+ /* Setup error, stall the device */
+ USBD_SET_EP_STALL(EP0);
+ USBD_SET_EP_STALL(EP1);
+
+ DBG_PRINTF("Unsupported request. stall ctrl pipe.\n");
+
+ break;
+ }
+ }
+ }
+}
+
+/**
+ * @brief Prepare the first Control IN pipe
+ *
+ * @param[in] pu8Buf The pointer of data sent to USB host.
+ * @param[in] u32Size The IN transfer size.
+ *
+ * @return None
+ *
+ * @details Prepare data for Control IN transfer.
+ *
+ */
+void USBD_PrepareCtrlIn(uint8_t *pu8Buf, uint32_t u32Size)
+{
+ DBG_PRINTF("Prepare Ctrl In %d\n", u32Size);
+ if(u32Size > g_usbd_CtrlMaxPktSize)
+ {
+ // Data size > MXPLD
+ g_usbd_CtrlInPointer = pu8Buf + g_usbd_CtrlMaxPktSize;
+ g_usbd_CtrlInSize = u32Size - g_usbd_CtrlMaxPktSize;
+ USBD_SET_DATA1(EP0);
+ USBD_MemCopy((uint8_t *)USBD_BUF_BASE + USBD_GET_EP_BUF_ADDR(EP0), pu8Buf, g_usbd_CtrlMaxPktSize);
+ USBD_SET_PAYLOAD_LEN(EP0, g_usbd_CtrlMaxPktSize);
+ }
+ else
+ {
+ // Data size <= MXPLD
+ g_usbd_CtrlInPointer = 0;
+ g_usbd_CtrlInSize = 0;
+ USBD_SET_DATA1(EP0);
+ USBD_MemCopy((uint8_t *)USBD_BUF_BASE + USBD_GET_EP_BUF_ADDR(EP0), pu8Buf, u32Size);
+ USBD_SET_PAYLOAD_LEN(EP0, u32Size);
+ }
+}
+
+/**
+ * @brief Repeat Control IN pipe
+ *
+ * @param None
+ *
+ * @return None
+ *
+ * @details This function processes the remained data of Control IN transfer.
+ *
+ */
+void USBD_CtrlIn(void)
+{
+ static uint8_t u8ZeroFlag = 0;
+
+ DBG_PRINTF("Ctrl In Ack. residue %d\n", g_usbd_CtrlInSize);
+ if(g_usbd_CtrlInSize)
+ {
+ // Process remained data
+ if(g_usbd_CtrlInSize > g_usbd_CtrlMaxPktSize)
+ {
+ // Data size > MXPLD
+ USBD_MemCopy((uint8_t *)USBD_BUF_BASE + USBD_GET_EP_BUF_ADDR(EP0), (uint8_t *)g_usbd_CtrlInPointer, g_usbd_CtrlMaxPktSize);
+ USBD_SET_PAYLOAD_LEN(EP0, g_usbd_CtrlMaxPktSize);
+ g_usbd_CtrlInPointer += g_usbd_CtrlMaxPktSize;
+ g_usbd_CtrlInSize -= g_usbd_CtrlMaxPktSize;
+ }
+ else
+ {
+ // Data size <= MXPLD
+ USBD_MemCopy((uint8_t *)USBD_BUF_BASE + USBD_GET_EP_BUF_ADDR(EP0), (uint8_t *)g_usbd_CtrlInPointer, g_usbd_CtrlInSize);
+ USBD_SET_PAYLOAD_LEN(EP0, g_usbd_CtrlInSize);
+ if(g_usbd_CtrlInSize == g_usbd_CtrlMaxPktSize)
+ u8ZeroFlag = 1;
+ g_usbd_CtrlInPointer = 0;
+ g_usbd_CtrlInSize = 0;
+ }
+ }
+ else // No more data for IN token
+ {
+ // In ACK for Set address
+ if((g_usbd_SetupPacket[0] == REQ_STANDARD) && (g_usbd_SetupPacket[1] == SET_ADDRESS))
+ {
+ if((USBD_GET_ADDR() != g_usbd_UsbAddr) && (USBD_GET_ADDR() == 0))
+ {
+ USBD_SET_ADDR(g_usbd_UsbAddr);
+ }
+ }
+
+ /* For the case of data size is integral times maximum packet size */
+ if(u8ZeroFlag)
+ {
+ USBD_SET_PAYLOAD_LEN(EP0, 0);
+ u8ZeroFlag = 0;
+ }
+
+ DBG_PRINTF("Ctrl In done.\n");
+
+ }
+}
+
+/**
+ * @brief Prepare the first Control OUT pipe
+ *
+ * @param[in] pu8Buf The pointer of data received from USB host.
+ * @param[in] u32Size The OUT transfer size.
+ *
+ * @return None
+ *
+ * @details This function is used to prepare the first Control OUT transfer.
+ *
+ */
+void USBD_PrepareCtrlOut(uint8_t *pu8Buf, uint32_t u32Size)
+{
+ g_usbd_CtrlOutPointer = pu8Buf;
+ g_usbd_CtrlOutSize = 0;
+ g_usbd_CtrlOutSizeLimit = u32Size;
+ USBD_SET_PAYLOAD_LEN(EP1, g_usbd_CtrlMaxPktSize);
+}
+
+/**
+ * @brief Repeat Control OUT pipe
+ *
+ * @param None
+ *
+ * @return None
+ *
+ * @details This function processes the successive Control OUT transfer.
+ *
+ */
+void USBD_CtrlOut(void)
+{
+ uint32_t u32Size;
+
+ DBG_PRINTF("Ctrl Out Ack %d\n", g_usbd_CtrlOutSize);
+
+ if(g_usbd_CtrlOutSize < g_usbd_CtrlOutSizeLimit)
+ {
+ u32Size = USBD_GET_PAYLOAD_LEN(EP1);
+ USBD_MemCopy((uint8_t *)g_usbd_CtrlOutPointer, (uint8_t *)USBD_BUF_BASE + USBD_GET_EP_BUF_ADDR(EP1), u32Size);
+ g_usbd_CtrlOutPointer += u32Size;
+ g_usbd_CtrlOutSize += u32Size;
+
+ if(g_usbd_CtrlOutSize < g_usbd_CtrlOutSizeLimit)
+ USBD_SET_PAYLOAD_LEN(EP1, g_usbd_CtrlMaxPktSize);
+
+ }
+}
+
+/**
+ * @brief Reset software flags
+ *
+ * @param None
+ *
+ * @return None
+ *
+ * @details This function resets all variables for protocol and resets USB device address to 0.
+ *
+ */
+void USBD_SwReset(void)
+{
+ int i;
+
+ // Reset all variables for protocol
+ g_usbd_CtrlInPointer = 0;
+ g_usbd_CtrlInSize = 0;
+ g_usbd_CtrlOutPointer = 0;
+ g_usbd_CtrlOutSize = 0;
+ g_usbd_CtrlOutSizeLimit = 0;
+ g_u32EpStallLock = 0;
+ memset(g_usbd_SetupPacket, 0, 8);
+
+ /* Reset PID DATA0 */
+ for(i=0; i<USBD_MAX_EP; i++)
+ USBD->EP[i].CFG &= ~USBD_CFG_DSQSYNC_Msk;
+
+ // 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;
+}
+
+/**
+ * @brief The callback function which called when get SET CONFIGURATION request
+ *
+ * @param[in] pfnSetConfigCallback Callback function pointer for SET CONFIGURATION request
+ *
+ * @return None
+ *
+ * @details This function is used to set the callback function which will be called at SET CONFIGURATION request.
+ */
+void USBD_SetConfigCallback(SET_CONFIG_CB pfnSetConfigCallback)
+{
+ g_usbd_pfnSetConfigCallback = pfnSetConfigCallback;
+}
+
+
+/**
+ * @brief EP stall lock function to avoid stall clear by USB SET FEATURE request.
+ *
+ * @param[in] u32EpBitmap Use bitmap to select which endpoints will be locked
+ *
+ * @return None
+ *
+ * @details This function is used to lock relative endpoint to avoid stall clear by SET FEATURE requst.
+ * If ep stall locked, user needs to reset USB device or re-configure device to clear it.
+ */
+void USBD_LockEpStall(uint32_t u32EpBitmap)
+{
+ g_u32EpStallLock = u32EpBitmap;
+}
+
+
+
+
+
+/*@}*/ /* end of group USBD_EXPORTED_FUNCTIONS */
+
+/*@}*/ /* end of group USBD_Driver */
+
+/*@}*/ /* end of group Standard_Driver */
+
+#ifdef __cplusplus
+}
+#endif
+
+/*** (C) COPYRIGHT 2014~2015 Nuvoton Technology Corp. ***/
