/********************************************************************************
* Copyright (c) 2012, Beijing Tongfang Microelectroics Co., Ltd.
* All rights reserved.
* Module: USB
* Author: Yang Song
* Version: V1.0
* History:
*   2012-09-24 Original version
********************************************************************************/

#include "global.h"

static void usbSetMaxPktSize(u8 epn,u16 maxlength);

/***************************************************************************
* Function: usbEpInit
* Description: Initialize ep
* Input:  NULL
* Output: NULL
* Return: NULL	
* Other:  NULL
**************************************************************************/	
void usbEpInit(void)
{
    //	maxpkt=16B,clr buf 0 & 1,not complete CXSTS,CXDPKT,CXS enable
	USBCECON = 0x00010C07;
    
    if(g_bUsbDevType == USBDEVTYPE_HIDPOS)
    {
        //	INT OUT,double buffer disable,maxpkt=64B,clr buf 0 & 1,not STALL
        USBEP1CON = 0x00430600;								//	used for BULK OUT
        //	INT IN, double buffer disable,maxpkt=64B,clr buf 0 & 1,not STALL
        USBEP2CON = 0x00530600;								//	used for BULK IN
    }
    else if(g_bUsbDevType == USBDEVTYPE_HIDKBD)
    {
        //	INT OUT,double buffer disable,maxpkt=64B,clr buf 0 & 1,not STALL
        USBEP1CON = 0x00430600;								//	used for BULK OUT
        //	INT IN, double buffer disable,maxpkt=64B,clr buf 0 & 1,not STALL
        USBEP2CON = 0x00530600;								//	used for BULK IN
    }
    else if(g_bUsbDevType == USBDEVTYPE_VSP)
    {
        //	BULK OUT,double buffer disable,maxpkt=64B,clr buf 0 & 1,not STALL
        USBEP1CON = 0x00230600;
        //	BULK IN, double buffer disable,maxpkt=64B,clr buf 0 & 1,not STALL
        USBEP2CON = 0x00330600;
        //	INT IN, double buffer disable,maxpkt=8B,clr buf 0 & 1,not STALL
        USBEP3CON = 0x00500600;
    }
    
#if 0
	//	BULK OUT,double buffer disable,maxpkt=64B,clr buf 0 & 1,not STALL
	USBEP1CON = 0x00230600;								//	used for BULK OUT
	//	BULK IN, double buffer disable,maxpkt=64B,clr buf 0 & 1,not STALL
	USBEP2CON = 0x00330600;								//	used for BULK IN

    //	INT IN, double buffer disable,maxpkt=8B,clr buf 0 & 1,not STALL
    USBEP3CON = 0x00500600; 							//	used for INTERRUPT IN

	//	BULK IN, double buffer disable,maxpkt=64B,clr buf 0 & 1,not STALL
	USBEP4CON = 0x00330600;	 							//	used for BULK IN
	//	INT IN, double buffer disable,maxpkt=8B,clr buf 0 & 1,not STALL
	USBEP5CON = 0x00500600;	 							//	used for INTERRUPT IN
	//	INT IN, double buffer disable,maxpkt=8B,clr buf 0 & 1,not STALL
	USBEP6CON = 0x00500600;	 							//	used for INTERRUPT IN
	//	BULK OUT, double buffer disable,maxpkt=64B,clr buf 0 & 1,not STALL
	USBEP7CON = 0x00230600;	 							//	used for INTERRUPT IN
	//	BULK IN, double buffer disable,maxpkt=64B,clr buf 0 & 1,not STALL
	USBEP8CON = 0x00330600;	 							//	used for INTERRUPT IN
#endif
	usbSetMaxPktSize(0,EP0PKTSIZE);

#if HID
	usbSetMaxPktSize(1,HIDINTPKTSIZE);
	usbSetMaxPktSize(2,HIDINTPKTSIZE);
#endif

#if	DYNAMICFIFO
	USBBFCON |= Bit7_En;
	USBCEBF = (u32)g_abUsbEp0Buf;

	USBEP1BF = (u32)g_abUsbEp1Buf;
	USBEP2BF = (u32)g_abUsbEp2Buf;
    USBEP3BF = (u32)g_abUsbEp3Buf;

#else 
	USBBFCON &= Bit7_Dis;
	USBBFCON = (((u32)g_abUsbBuf) - USBFIFO_ADDR_START) >> 6;	//	set USB buf start address
#endif
	
	USBDCON |= 0x00000001;								//	Enable EP0 interrupt
//	USBEP1CON |= Bit0_En;								//	Enable EP1 interrupt
//	USBEP2CON |= Bit0_En;								//	Enable EP2 interrupt
//	USBEP3CON |= Bit0_En;								//	Enable EP3 interrupt
//	USBEP4CON |= Bit0_En;								//	Enable EP4 interrupt
//	USBDCON |= Bit16_En;								//	Enable RST interrupt for debugging
//	USBDCON |= Bit17_En;								//	Enable Suspend interrupt for debugging
//	USBDCON |= Bit18_En;								//	Enable SOF interrupt for debugging
//	USBDCON = 0x7FFFF;									//	Enable all interrupts
//	USBDCON &= Bit16_Dis;								//	Disable RST interrupt for debugging
//	USBDCON &= Bit17_Dis;								//	Disable Suspend interrupt for debugging
//	USBDCON &= Bit18_Dis;								//	Disable SOF interrupt for debugging
}

/***************************************************************************
* Function: usbSetMaxPktSize
* Description: Set all EP Max packet size
* Input:  epn       :  the number of ep,form 0 to 8
          maxlength	:  the max packet length, the value can be set to 16,32,64
* Output: NULL
* Return: NULL	
* Other:  NULL
**************************************************************************/
static void usbSetMaxPktSize(u8 epn,u16 maxlength)
{
	u32 tempUSBEPCON;
	
	tempUSBEPCON = USBEPCON(epn);
	tempUSBEPCON &= 0xFFF8FFFF;
	
	if(maxlength == 16)
	{
		tempUSBEPCON |= 0x00010000;
	}
	else if(maxlength == 64)
	{
		tempUSBEPCON |= 0x00030000;	
	}
	else if(maxlength == 32)
	{
		tempUSBEPCON |= 0x00020000;	
	}
	
	USBEPCON(epn) = tempUSBEPCON;
}