?? usbin.c
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/*************************************************************************/
/* */
/* Copyright Shenzhen Watertek S.&T. Co.,Ltd 2002 */
/* All Rights Reserved. */
/* */
/* THIS WORK CONTAINS TRADE SECRET AND PROPRIETARY INFORMATION WHICH IS */
/* THE PROPERTY OF MENTOR GRAPHICS CORPORATION OR ITS LICENSORS AND IS */
/* SUBJECT TO LICENSE TERMS. */
/* */
/*************************************************************************/
/*************************************************************************/
/* */
/* FILE NAME VERSION */
/* */
/* usbin.c S3c2410 USB device 1.0*/
/* */
/* */
/* DESCRIPTION */
/* */
/* This file contains data structure definitions , constants */
/* and manipulation facilitiesused in 2410 ep1(in) */
/* AUTHOR */
/* Zhi-gang yang shenzhen watertek */
/* */
/* DATA STRUCTURES */
/* */
/* ep1Buf[EP1_PKT_SIZE] IN ENDPOINT Buffer */
/* transferIndex transfer Counter */
/* */
/* FUNCTIONS */
/* */
/* PrepareEp1Fifo prepare ep1 FIFO and setup */
/* ep1 already, if token IN */
/* arrive, data send to host */
/* Ep1Handler ep1 interrupt handler */
/* PrintEpiPkt print ep1 packet,only for */
/* debug */
/* */
/* DEPENDENCIES */
/* */
/* option.h */
/* string.h */
/* 2410addr.h */
/* 2410usb.h */
/* 2410lib.h */
/* def.h */
/* HISTORY */
/* */
/* DATE REMARKS */
/* */
/* 2005-1-8 Created initial version 1.0 */
/*************************************************************************/
#include <string.h>
#include "option.h"
#include "2410addr.h"
#include "def.h"
#include "2410usb.h"
#include "usbmain.h"
#include "usb.h"
#include "usblib.h"
#include "usbsetup.h"
#include "usbin.h"
static void PrintEpiPkt(U8 *pt,int cnt);
// ===================================================================
// All following commands will operate in case
// - in_csr1 is valid.
// ===================================================================
//set EP1 IN packet ready tag
#define SET_EP1_IN_PKT_READY() rIN_CSR1_REG= ( in_csr1 &(~ EPI_WR_BITS)\
| EPI_IN_PKT_READY )
//MCU issues a STALL handshake to the USB
#define SET_EP1_SEND_STALL() rIN_CSR1_REG= ( in_csr1 & (~EPI_WR_BITS)\
| EPI_SEND_STALL) )
//clear Ep3 sent stall(host -> MCU)
#define CLR_EP1_SENT_STALL() rIN_CSR1_REG= ( in_csr1 & (~EPI_WR_BITS)\
&(~EPI_SENT_STALL) )
////flush ep3 FIFO
#define FLUSH_EP1_FIFO() rIN_CSR1_REG= ( in_csr1 & (~EPI_WR_BITS)\
| EPI_FIFO_FLUSH) )
// ***************************
// *** VERY IMPORTANT NOTE ***
// ***************************
// Prepare the code for the packit size constraint!!!
// EP1 = IN end point.
U8 ep1Buf[EP1_PKT_SIZE];
int transferIndex=0;
/*************************************************************************/
/* */
/* FUNCTION */
/* */
/* PrepareEp1Fifo */
/* */
/* DESCRIPTION */
/* */
/* prepare ep1 fifo for data send */
/* */
/* AUTHOR */
/* */
/* Zhi-gang Yang shenzhen watertek */
/* */
/* INPUTS */
/* None */
/* */
/* OUTPUTS */
/* */
/* None */
/* */
/* HISTORY */
/* */
/* DATE REMARKS */
/* */
/* 2004-12-28 Created initial version 1.0 */
/*************************************************************************/
void PrepareEp1Fifo(void)
{
int i;
U8 in_csr1;
rINDEX_REG=1;
in_csr1=rIN_CSR1_REG;
for(i=0;i<EP1_PKT_SIZE;i++)ep1Buf[i]=(U8)(transferIndex+i);
WrPktEp1(ep1Buf,EP1_PKT_SIZE);
SET_EP1_IN_PKT_READY();
}
/*************************************************************************/
/* */
/* FUNCTION */
/* */
/* Ep1Handler */
/* */
/* DESCRIPTION */
/* */
/* Ep1 interrupt handler */
/* */
/* AUTHOR */
/* */
/* Zhi-gang Yang shenzhen watertek */
/* */
/* INPUTS */
/* None */
/* */
/* OUTPUTS */
/* */
/* None */
/* */
/* HISTORY */
/* */
/* DATE REMARKS */
/* */
/* 2004-12-28 Created initial version 1.0 */
/*************************************************************************/
void Ep1Handler(void)
{
U8 in_csr1;
rINDEX_REG=1;
in_csr1=rIN_CSR1_REG;
//I think that EPI_SENT_STALL will not be set to 1.
if(in_csr1 & EPI_SENT_STALL)
{
CLR_EP1_SENT_STALL();
return;
}
//IN_PKT_READY is cleared
//The data transfered was ep1Buf[] which was already configured
PrintEpiPkt(ep1Buf,EP1_PKT_SIZE);
transferIndex++;
PrepareEp1Fifo();
//IN_PKT_READY is set
//This packit will be used for next IN packit.
return;
}
/*************************************************************************/
/* */
/* FUNCTION */
/* */
/* PrintEpiPkt */
/* */
/* DESCRIPTION */
/* */
/* print epi packet for debug. if read data (mcu--->host) */
/* it should be modified. */
/* AUTHOR */
/* */
/* Zhi-gang Yang shenzhen watertek */
/* */
/* INPUTS */
/* None */
/* */
/* OUTPUTS */
/* */
/* None */
/* */
/* HISTORY */
/* */
/* DATE REMARKS */
/* */
/* 2004-12-28 Created initial version 1.0 */
/*************************************************************************/
void PrintEpiPkt(U8 *pt,int cnt)
{
/* int i;
DbgPrintf("[B_IN:%d:",cnt);
for(i=0;i<cnt;i++)
DbgPrintf("%x,",pt[i]);
DbgPrintf("]");
*/
}
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