/**************************************************************************//**
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* @file usb.c
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* @version V1.00
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* $Revision: 2 $
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* $Date: 20/08/04 14:25 $
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* @brief Panchip series usb driver source file
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*
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* @note
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* Copyright (C) 2020 Panchip Technology Corp. All rights reserved.
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*****************************************************************************/
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#include "PanSeries.h"
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#include "usb.h"
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/**
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* @brief This function read usb fifo
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* @param[in] u32EPn: endpoint number
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* @param[in] u32Size: data size
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* @param[in] pDst: data destination
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* @return None
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*/
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void USB_Read(uint32_t u32EPn, uint32_t u32Size, void * pDst)
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{
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uint8_t *tmp = (uint8_t *)pDst;
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uint8_t *nAddr;
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nAddr = &((uint8_t *)&USB->FIFO_EP0)[u32EPn<<2];
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if(u32Size){
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while (u32Size) {
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*tmp++ = *nAddr;
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u32Size--;
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}
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}
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}
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/**
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* @brief This function write usb fifo
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* @param[in] nEP: endpoint number
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* @param[in] nBytes: data size
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* @param[in] pSrc: data source
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* @return None
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*/
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void USB_Write(uint32_t u32EPn, uint32_t u32Size, void * pSrc)
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{
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uint8_t *nAddr;
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uint8_t *tmp = (uint8_t *)pSrc;
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nAddr = &((uint8_t *)&USB->FIFO_EP0)[u32EPn<<2];
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if(u32Size){
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while (u32Size) {
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*nAddr = *tmp++;
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u32Size--;
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}
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}
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}
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