www.pudn.com > arm_uDisk.rar > USBLIB.C

/**************************************************************** 
 NAME: usblib.c 
 DESC: S3C2410X USB library functions 
 HISTORY: 
 Mar.25.2002:purnnamu: ported for S3C2410X. 
 Mar.27.2002:purnnamu: DMA is enabled. 
 ****************************************************************/ 
#include  
#include "option.h" 
#include "2410addr.h" 
#include "2410lib.h" 
#include "def.h" 
 
#include "2410usb.h" 
#include "usbmain.h" 
#include "usblib.h" 
#include "usbsetup.h" 
 
 
void ConfigUsbd(void) 
{ 
 
    ReconfigUsbd(); 
   
    rINTMSK&=~(BIT_USBD); //Just only enable USBD INT @0x4a000008=0xFDFFFFFF 
} 
 
 
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;	 
#ifdef _FOR_UDISK_ 
	if(USBD_flg==0) 
	    	rIN_CSR2_REG=EPI_MODE_IN|EPI_IN_DMA_INT_MASK|EPI_BULK; //IN mode, IN_DMA_INT=masked     
	else if(USBD_flg==1) 
		rIN_CSR2_REG=EPI_MODE_IN|EPI_IN_DMA_INT_MASK|EPI_BULK|EPI_AUTO_SET; 
#else 
	rIN_CSR2_REG=EPI_MODE_IN|EPI_IN_DMA_INT_MASK|EPI_BULK; //IN mode, IN_DMA_INT=masked    
#endif 
    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. 
#ifdef _FOR_UDISK_ 
	if(USBD_flg==0) 
    		rOUT_CSR2_REG=EPO_BULK|EPO_OUT_DMA_INT_MASK;   	 
	else if(USBD_flg==1) 
		rOUT_CSR2_REG=EPO_BULK|EPO_OUT_DMA_INT_MASK|EPO_AUTO_CLR;  
#else 
	rOUT_CSR2_REG=EPO_BULK|EPO_OUT_DMA_INT_MASK;   
#endif 
 
    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; 
     
} 
 
 
void RdPktEp0(U8 *buf,int num) 
{ 
    int i; 
    	 
    for(i=0;i