usblib.c

s3c2410平台下USB驱动的源代码：USB1.1协议及S3C2410 USB device实验

/*************************************************************************/
/*                                                                       */
/*               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       */
/*                                                                       */
/*      USBlib.c                                   S3c2410 USB device 1.0*/
/*                                                                       */
/*                                                                       */
/* DESCRIPTION                                                           */
/*                                                                       */
/*      This file contains  constants used  in the USB protocol          */
/* AUTHOR                                                                */
/*    	Zhi-gang yang   shenzhen watertek                                */
/*                                                                       */
/*                                                                       */
/* DATA STRUCTURES                                                       */
/*                                                                       */
/*  None                                                                 */
/*                                                                       */
/* FUNCTIONS                                                             */
/*                                                                       */
/*      None                                                             */
/*                                                                       */
/* DEPENDENCIES                                                          */
/*     string.h                                                          */
/*     option.h                                                          */
/*     2410addr.h                                                        */
/*     def.h                                                             */
/*     2410usb.h                                                         */
/*     usbmain.h                                                         */
/*     usblib.h                                                          */
/*     usbsetup.h                                                        */
/*     usbmain.h                                                         */
/*                                                                       */
/* HISTORY                                                               */
/*                                                                       */
/*         DATE                    REMARKS                               */
/*                                                                       */
/*      2004-12-22      Created initial version 1.0                      */
/*************************************************************************/

#include <string.h>
#include "option.h"
#include "2410addr.h"
#include "def.h"

#include "2410usb.h"
#include "usbmain.h"
#include "usblib.h"
#include "usbsetup.h"
#include "usbmain.h"
/*************************************************************************/
/*                                                                       */
/* FUNCTION                                                              */
/*                                                                       */
/*      ConfigUsbd		                                         */
/*                                                                       */
/* DESCRIPTION                                                           */
/*                                                                       */
/*      config usb device function				                 */
/*                                                                       */
/* AUTHOR                                                                */
/*                                                                       */
/*      Zhi-gang Yang          shenzhen watertek                         */
/*                                                                       */
/* INPUTS                                                                */
/*      None                                                             */
/*                                                                       */
/* OUTPUTS                                                               */
/*                                                                       */
/*      None      	                                                 */
/*                                                                       */
/* HISTORY                                                               */
/*                                                                       */
/*         DATE                    REMARKS                               */
/*                                                                       */
/*      2004-12-28      Created initial version 1.0                      */
/*************************************************************************/

void ConfigUsbd(void)
{
    //reconfig usb device
    ReconfigUsbd();
    //enable usb device interrupt
    rINTMSK&=~(BIT_USBD);  
}

/*************************************************************************/
/*                                                                       */
/* FUNCTION                                                              */
/*                                                                       */
/*      ReconfigUsbd		                                         */
/*                                                                       */
/* DESCRIPTION                                                           */
/*                                                                       */
/*      config usb device function				                 */
/*                                                                       */
/* AUTHOR                                                                */
/*                                                                       */
/*      Zhi-gang Yang          shenzhen watertek                         */
/*                                                                       */
/* INPUTS                                                                */
/*      None                                                             */
/*                                                                       */
/* OUTPUTS                                                               */
/*                                                                       */
/*      None      	                                                 */
/*                                                                       */
/* HISTORY                                                               */
/*                                                                       */
/*         DATE                    REMARKS                               */
/*                                                                       */
/*      2004-12-28      Created initial version 1.0                      */
/*************************************************************************/

void ReconfigUsbd(void)
{
// *** End point information ***
//   EP0: control
//   EP1: bulk in end point
//   EP2: not used
//   EP3: bulk out end point
//   EP4: not used
    
    rPWR_REG=PWR_REG_DEFAULT_VALUE;	//disable suspend mode

    rINDEX_REG=0;	
    rMAXP_REG=FIFO_SIZE_8;   	//EP0 max packit size = 8 
    rEP0_CSR=EP0_SERVICED_OUT_PKT_RDY|EP0_SERVICED_SETUP_END;	
 				//EP0:clear OUT_PKT_RDY & SETUP_END
    rINDEX_REG=1;
    #if (EP1_PKT_SIZE==32)
        rMAXP_REG=FIFO_SIZE_32;	//EP1:max packit size = 32
    #else
	rMAXP_REG=FIFO_SIZE_64;	//EP1:max packit size = 64
    #endif	
    rIN_CSR1_REG=EPI_FIFO_FLUSH|EPI_CDT;	
    rIN_CSR2_REG=EPI_MODE_IN|EPI_IN_DMA_INT_MASK|EPI_BULK; //IN mode, IN_DMA_INT=masked    
    rOUT_CSR1_REG=EPO_CDT;   	
    rOUT_CSR2_REG=EPO_BULK|EPO_OUT_DMA_INT_MASK;   	

    rINDEX_REG=2;
    rMAXP_REG=FIFO_SIZE_64;	//EP2:max packit size = 64
    rIN_CSR1_REG=EPI_FIFO_FLUSH|EPI_CDT|EPI_BULK;
    rIN_CSR2_REG=EPI_MODE_IN|EPI_IN_DMA_INT_MASK; //IN mode, IN_DMA_INT=masked    
    rOUT_CSR1_REG=EPO_CDT;   	
    rOUT_CSR2_REG=EPO_BULK|EPO_OUT_DMA_INT_MASK;   	

    rINDEX_REG=3;
    #if (EP3_PKT_SIZE==32)
        rMAXP_REG=FIFO_SIZE_32;	//EP3:max packit size = 32
    #else
	rMAXP_REG=FIFO_SIZE_64;	//EP3:max packit size = 64
    #endif	
    rIN_CSR1_REG=EPI_FIFO_FLUSH|EPI_CDT|EPI_BULK;
    rIN_CSR2_REG=EPI_MODE_OUT|EPI_IN_DMA_INT_MASK; //OUT mode, IN_DMA_INT=masked    
    rOUT_CSR1_REG=EPO_CDT;   	
    	//clear OUT_PKT_RDY, data_toggle_bit.
	//The data toggle bit should be cleared when initialization.
    rOUT_CSR2_REG=EPO_BULK|EPO_OUT_DMA_INT_MASK;   	

    rINDEX_REG=4;
    rMAXP_REG=FIFO_SIZE_64;	//EP4:max packit size = 64
    rIN_CSR1_REG=EPI_FIFO_FLUSH|EPI_CDT|EPI_BULK;
    rIN_CSR2_REG=EPI_MODE_OUT|EPI_IN_DMA_INT_MASK; //OUT mode, IN_DMA_INT=masked    
    rOUT_CSR1_REG=EPO_CDT;   	
    	//clear OUT_PKT_RDY, data_toggle_bit.
	//The data toggle bit should be cleared when initialization.
    rOUT_CSR2_REG=EPO_BULK|EPO_OUT_DMA_INT_MASK;   	
    
    rEP_INT_REG=EP0_INT|EP1_INT|EP2_INT|EP3_INT|EP4_INT;
    rUSB_INT_REG=RESET_INT|SUSPEND_INT|RESUME_INT; 
    	//Clear all usbd pending bits
    	
    //EP0,1,3 & reset interrupt are enabled
    rEP_INT_EN_REG=EP0_INT|EP1_INT|EP3_INT;
    rUSB_INT_EN_REG=RESET_INT;
    ep0State=EP0_STATE_INIT;
    
}
/*************************************************************************/