680 lines
19 KiB
C
680 lines
19 KiB
C
/**************************************************************************//**
|
|
* @file usbd.c
|
|
* @version V1.00
|
|
* $Revision: 2 $
|
|
* $Date: 18/08/05 2:58p $
|
|
* @brief NuMicro ARM9 USBD driver source file
|
|
*
|
|
* @note
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
* Copyright (C) 2018 Nuvoton Technology Corp. All rights reserved.
|
|
*****************************************************************************/
|
|
#include "nuc980.h"
|
|
#include "nu_usbd.h"
|
|
|
|
/** @addtogroup Standard_Driver Standard Driver
|
|
@{
|
|
*/
|
|
|
|
/** @addtogroup USBD_Driver USBD Driver
|
|
@{
|
|
*/
|
|
|
|
/** @addtogroup USBD_EXPORTED_CONSTANTS USBD Exported Constants
|
|
@{
|
|
*/
|
|
/*--------------------------------------------------------------------------*/
|
|
/// @cond HIDDEN_SYMBOLS
|
|
|
|
/*!< 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;
|
|
uint32_t g_u32EpStallLock = 0; /*!< Bit map flag to lock specified EP when SET_FEATURE */
|
|
uint8_t volatile g_usbd_RemoteWakeupEn = 0ul;
|
|
|
|
static uint8_t *g_usbd_CtrlInPointer = 0;
|
|
static uint32_t g_usbd_CtrlMaxPktSize = 64;
|
|
static uint8_t g_usbd_UsbConfig = 0;
|
|
static uint8_t g_usbd_UsbAltInterface = 0;
|
|
static uint8_t g_usbd_EnableTestMode = 0;
|
|
static uint8_t g_usbd_TestSelector = 0;
|
|
|
|
#ifdef __ICCARM__
|
|
#pragma data_alignment=4
|
|
static uint8_t g_usbd_buf[12];
|
|
#else
|
|
static uint8_t g_usbd_buf[12] __attribute__((aligned(4)));
|
|
#endif
|
|
|
|
|
|
uint8_t volatile g_usbd_Configured = 0;
|
|
uint8_t g_usbd_CtrlZero = 0;
|
|
uint8_t g_usbd_UsbAddr = 0;
|
|
uint8_t g_usbd_ShortPacket = 0;
|
|
uint32_t volatile g_usbd_DmaDone = 0;
|
|
uint32_t g_usbd_CtrlInSize = 0;
|
|
/// @endcond HIDDEN_SYMBOLS
|
|
|
|
/**
|
|
* @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)
|
|
{
|
|
int volatile i;
|
|
/* Select Vbus detect pin -> GPE11 */
|
|
outpw(REG_SYS_GPE_MFPH, (inpw(REG_SYS_GPE_MFPH) & ~0xf000) | 0x1000);
|
|
/* Enable USB device clock */
|
|
outpw(REG_CLK_HCLKEN, inpw(REG_CLK_HCLKEN) | 0x80000);
|
|
outpw(REG_SYS_AHBIPRST, inpw(REG_SYS_AHBIPRST) | 0x80000);
|
|
outpw(REG_SYS_AHBIPRST, inpw(REG_SYS_AHBIPRST) & ~0x80000);
|
|
for (i = 0; i < 1000; i++);
|
|
|
|
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->EP[EPA].EPMPS = 0x20;
|
|
if (USBD->EP[EPA].EPMPS == 0x20)
|
|
break;
|
|
}
|
|
/* Force SE0, and then clear it to connect*/
|
|
USBD_SET_SE0();
|
|
}
|
|
|
|
/**
|
|
* @brief USBD Start
|
|
*
|
|
* @return None
|
|
*
|
|
* @details This function is used to start transfer
|
|
*/
|
|
void USBD_Start(void)
|
|
{
|
|
USBD_CLR_SE0();
|
|
}
|
|
|
|
/**
|
|
* @brief Process Setup Packet
|
|
*
|
|
* @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
|
|
*
|
|
* @return None
|
|
*
|
|
* @details This function is used to process GetDescriptor request.
|
|
*/
|
|
int USBD_GetDescriptor(void)
|
|
{
|
|
uint32_t u32Len;
|
|
int val = 0;
|
|
|
|
u32Len = gUsbCmd.wLength;
|
|
g_usbd_CtrlZero = 0;
|
|
USBD->CEPCTL |= USBD_CEPCTL_FLUSH_Msk;
|
|
|
|
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 & 0x04ul) == 0x04ul)
|
|
{
|
|
u32TotalLen = g_usbd_sInfo->gu8ConfigDesc[3];
|
|
u32TotalLen = g_usbd_sInfo->gu8ConfigDesc[2] + (u32TotalLen << 8);
|
|
|
|
if (u32Len > u32TotalLen)
|
|
{
|
|
u32Len = u32TotalLen;
|
|
if ((u32Len % g_usbd_CtrlMaxPktSize) == 0)
|
|
{
|
|
g_usbd_CtrlZero = 1;
|
|
}
|
|
}
|
|
USBD_PrepareCtrlIn((uint8_t *)g_usbd_sInfo->gu8ConfigDesc, u32Len);
|
|
}
|
|
else
|
|
{
|
|
u32TotalLen = g_usbd_sInfo->gu8FullConfigDesc[3];
|
|
u32TotalLen = g_usbd_sInfo->gu8FullConfigDesc[2] + (u32TotalLen << 8);
|
|
|
|
if (u32Len > u32TotalLen)
|
|
{
|
|
u32Len = u32TotalLen;
|
|
if ((u32Len % g_usbd_CtrlMaxPktSize) == 0ul)
|
|
{
|
|
g_usbd_CtrlZero = (uint8_t)1ul;
|
|
}
|
|
}
|
|
USBD_PrepareCtrlIn((uint8_t *)g_usbd_sInfo->gu8FullConfigDesc, 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;
|
|
if ((USBD->OPER & 0x04ul) == 0x04ul)
|
|
{
|
|
u32TotalLen = g_usbd_sInfo->gu8HSOtherConfigDesc[3];
|
|
u32TotalLen = g_usbd_sInfo->gu8HSOtherConfigDesc[2] + (u32TotalLen << 8);
|
|
|
|
if (u32Len > u32TotalLen)
|
|
{
|
|
u32Len = u32TotalLen;
|
|
if ((u32Len % g_usbd_CtrlMaxPktSize) == 0)
|
|
{
|
|
g_usbd_CtrlZero = 1;
|
|
}
|
|
}
|
|
USBD_PrepareCtrlIn((uint8_t *)g_usbd_sInfo->gu8HSOtherConfigDesc, u32Len);
|
|
}
|
|
else
|
|
{
|
|
u32TotalLen = g_usbd_sInfo->gu8FSOtherConfigDesc[3];
|
|
u32TotalLen = g_usbd_sInfo->gu8FSOtherConfigDesc[2] + (u32TotalLen << 8);
|
|
|
|
if (u32Len > u32TotalLen)
|
|
{
|
|
u32Len = u32TotalLen;
|
|
if ((u32Len % g_usbd_CtrlMaxPktSize) == 0ul)
|
|
{
|
|
g_usbd_CtrlZero = (uint8_t)1ul;
|
|
}
|
|
}
|
|
USBD_PrepareCtrlIn((uint8_t *)g_usbd_sInfo->gu8FSOtherConfigDesc, 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;
|
|
|
|
u32Len = Minimum(u32Len, g_usbd_sInfo->gu32HidReportSize[gUsbCmd.wIndex & 0xff]);
|
|
USBD_PrepareCtrlIn((uint8_t *)g_usbd_sInfo->gu8HidReportDesc[gUsbCmd.wIndex & 0xff], u32Len);
|
|
break;
|
|
}
|
|
/* Get String Descriptor */
|
|
case DESC_STRING:
|
|
{
|
|
if ((gUsbCmd.wValue & 0xfful) < 8ul)
|
|
{
|
|
if (u32Len > g_usbd_sInfo->gu8StringDesc[gUsbCmd.wValue & 0xfful][0])
|
|
{
|
|
u32Len = g_usbd_sInfo->gu8StringDesc[gUsbCmd.wValue & 0xfful][0];
|
|
if ((u32Len % g_usbd_CtrlMaxPktSize) == 0)
|
|
{
|
|
g_usbd_CtrlZero = 1;
|
|
}
|
|
}
|
|
USBD_PrepareCtrlIn((uint8_t *)g_usbd_sInfo->gu8StringDesc[gUsbCmd.wValue & 0xff], u32Len);
|
|
}
|
|
else
|
|
{
|
|
USBD_SET_CEP_STATE(USBD_CEPCTL_STALLEN_Msk);
|
|
val = 1;
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
/* Not support. Reply STALL. */
|
|
USBD_SET_CEP_STATE(USBD_CEPCTL_STALLEN_Msk);
|
|
val = 1;
|
|
break;
|
|
}
|
|
return val;
|
|
}
|
|
|
|
|
|
/**
|
|
* @brief Process USB standard request
|
|
*
|
|
* @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 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 GET_DESCRIPTOR:
|
|
{
|
|
if (!USBD_GetDescriptor())
|
|
{
|
|
USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_INTKIF_Msk);
|
|
USBD_ENABLE_CEP_INT(USBD_CEPINTEN_INTKIEN_Msk);
|
|
}
|
|
break;
|
|
}
|
|
case 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 GET_STATUS:
|
|
{
|
|
/* Device */
|
|
if (gUsbCmd.bmRequestType == 0x80)
|
|
{
|
|
g_usbd_buf[0] = (uint8_t)0ul; /* bus-Powered */
|
|
if ((g_usbd_sInfo->gu8ConfigDesc[7] & 0x40ul) == 0x40ul)
|
|
{
|
|
g_usbd_buf[0] = (uint8_t)1ul; /* Self-Powered */
|
|
}
|
|
|
|
if ((g_usbd_sInfo->gu8ConfigDesc[7] & 0x20ul) == 0x20ul)
|
|
g_usbd_buf[0] |= (uint8_t)(g_usbd_RemoteWakeupEn << 1); // Remote wake up
|
|
}
|
|
// 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 CLEAR_FEATURE:
|
|
{
|
|
if ((gUsbCmd.wValue & 0xff) == 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 = gUsbCmd.wIndex & 0xF;
|
|
for (i = 0; i < USBD_MAX_EP; i++)
|
|
{
|
|
if ((((USBD->EP[i].EPCFG & 0xf0) >> 4) == epNum) && ((g_u32EpStallLock & (1 << i)) == 0))
|
|
{
|
|
USBD->EP[i].EPRSPCTL = (USBD->EP[i].EPRSPCTL & 0xef) | USB_EP_RSPCTL_TOGGLE;
|
|
}
|
|
}
|
|
}
|
|
/* 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 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 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 SET_FEATURE:
|
|
{
|
|
if ((gUsbCmd.wValue & 0x3) == 2) /* TEST_MODE*/
|
|
{
|
|
g_usbd_EnableTestMode = 1;
|
|
g_usbd_TestSelector = gUsbCmd.wIndex >> 8;
|
|
}
|
|
/* 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 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;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
#define TEST_J 0x01 /*!< TEST J \hideinitializer */
|
|
#define TEST_K 0x02 /*!< TEST K \hideinitializer */
|
|
#define TEST_SE0_NAK 0x03 /*!< TEST SE0 \hideinitializer */
|
|
#define TEST_PACKET 0x04 /*!< TEST Packet \hideinitializer */
|
|
#define TEST_FORCE_ENABLE 0x05 /*!< TEST Force enable \hideinitializer */
|
|
|
|
|
|
/**
|
|
* @brief Update Device State
|
|
*
|
|
* @return None
|
|
*
|
|
* @details This function is used to update Device state when Setup packet complete
|
|
*/
|
|
void USBD_UpdateDeviceState(void)
|
|
{
|
|
switch (gUsbCmd.bRequest)
|
|
{
|
|
case SET_ADDRESS:
|
|
{
|
|
USBD_SET_ADDR(g_usbd_UsbAddr);
|
|
break;
|
|
}
|
|
case SET_CONFIGURATION:
|
|
{
|
|
if (g_usbd_UsbConfig == 0)
|
|
{
|
|
int volatile i;
|
|
/* Reset PID DATA0 */
|
|
for (i = 0; i < USBD_MAX_EP; i++)
|
|
{
|
|
if (USBD->EP[i].EPCFG & 0x1)
|
|
{
|
|
USBD->EP[i].EPRSPCTL = USB_EP_RSPCTL_TOGGLE;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case SET_FEATURE:
|
|
{
|
|
if (gUsbCmd.wValue == FEATURE_ENDPOINT_HALT)
|
|
USBD_SetStall(gUsbCmd.wIndex & 0xF);
|
|
else if (g_usbd_EnableTestMode)
|
|
{
|
|
g_usbd_EnableTestMode = 0;
|
|
if (g_usbd_TestSelector == TEST_J)
|
|
USBD->TEST = TEST_J;
|
|
else if (g_usbd_TestSelector == TEST_K)
|
|
USBD->TEST = TEST_K;
|
|
else if (g_usbd_TestSelector == TEST_SE0_NAK)
|
|
USBD->TEST = TEST_SE0_NAK;
|
|
else if (g_usbd_TestSelector == TEST_PACKET)
|
|
USBD->TEST = TEST_PACKET;
|
|
else if (g_usbd_TestSelector == TEST_FORCE_ENABLE)
|
|
USBD->TEST = TEST_FORCE_ENABLE;
|
|
}
|
|
break;
|
|
}
|
|
case 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
|
|
*
|
|
* @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->cep.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->cep.CEPDAT = *(uint32_t *)g_usbd_CtrlInPointer;
|
|
|
|
count = g_usbd_CtrlInSize % 4;
|
|
for (i = 0; i < count; i++)
|
|
USBD->cep.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->cep.CEPDAT_BYTE;
|
|
USBD->CEPINTSTS = USBD_CEPINTSTS_RXPKIF_Msk;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief Clear all software flags
|
|
*
|
|
* @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 USBD_EXPORTED_FUNCTIONS */
|
|
|
|
/*@}*/ /* end of group USBD_Driver */
|
|
|
|
/*@}*/ /* end of group Standard_Driver */
|
|
|
|
/*** (C) COPYRIGHT 2018 Nuvoton Technology Corp. ***/
|