mt8986lib.c

Zalink50114----TDMoIP芯片驱动源码

/* mt8986Lib.c - MT89L86 timeslot switcher initialization
*
* Copyright     2004-2007 ZTE, Inc.
* author:       ZhengQishan
* date:         2004.02
*
* modification history
*------------------------------
*
*/

#include "mt8986.h"

LOCAL STATUS le1ve_MT8986SwitchEnable(unsigned int slotNo,int inStream,int outStream ,int inChannel, int outChannel);
LOCAL STATUS le1ve_MT8986SwitchDisable(unsigned int slotNo,int inStream,int outStream ,int inChannel, int outChannel);


STATUS le1veMt8986Init(int slot )
{
    int stream,channel;
	STATUS result = OK;
    
	/*TDM交换网初始化*/
    /*Interface Mode Selection Register:
    bit7:  Device Main Operation(DMO).  
      if 1 - Different I/O data rate.
    bit6-5:Input Data Rate Selection.
            0 0 2.048 Mb/s
            0 1 4.096 Mb/s
            1 0 8.192 Mb/s
            1 1 reserved
    bit4-3 ODR1 ODR0 Output Rate
            0 0 2.048 Mb/s
            0 1 4.096 Mb/s
            1 0 8.192 Mb/s
            1 1 reserved

    bit2-1: 00b - 8 inputs x 8 outputs - Non Blocking
    bit0:Clock Mode. 硬件要求配置为0
    */
	LE1VE_MT89L86_REG_WRITE(slot, MT89L86_IMSR_REG, 0x00);

    /*Stream Pair Selection Register:
      bit7-6  reserved
      bit5-3  Stream Pair A selection.
      bit2-0  Stream Pair B selection.
      我们不会用到
    */
	LE1VE_MT89L86_REG_WRITE(slot, MT89L86_SPSR_REG, 0x01);

    /*Frame Input Offset Register
    bit7-5:Offset Bits 2-0.
    OFB2 OFB1 OFB0 Number of Clock Periods
            0 0 0 Normal Operation. No bit offsetting.
            0 0 1 1
            0 1 0 2
            0 1 1 3
            1 0 0 4
            1 0 1 Reserved
            1 1 0 Reserved
            1 1 1 Reserved
    根据物理信号配置
    */
	LE1VE_MT89L86_REG_WRITE(slot, MT89L86_FIOR_REG, 0x00);

	/*-------------------------------------------------
	disable掉所有的8个Stream的所有32个时隙
	-------------------------------------------------*/
	for(stream = 0; stream<= 8; stream++)
	{
		for(channel = 0; channel<=31; channel++)
		{
		    LE1VE_MT89L86_REG_WRITE(slot, MT89L86_CTRL_REG, 0x10|(1<<3)|stream);
		    LE1VE_MT89L86_REG_WRITE(slot, (MT89L86_CHAN_REG_BASE + channel)*4, 0x00);
		}
	}
    
    /*debug*/
    enableMt8986(slot);
	return result;
}


LOCAL STATUS le1ve_MT8986SwitchEnable(unsigned int slotNo,int inStream,int outStream ,int inChannel, int outChannel)
{

	if (slotNo>8)
			return ERROR;
	/*添加控制*/

	/*Stream#in ,Connection Low */
	LE1VE_MT89L86_REG_WRITE(slotNo,MT89L86_CTRL_REG,0x10|inStream);
	LE1VE_MT89L86_REG_WRITE(slotNo,(MT89L86_CHAN_REG_BASE+inChannel)*4,((outStream<<5)|outChannel));

	/*Stream#out ,Connection Low*/
	LE1VE_MT89L86_REG_WRITE(slotNo,MT89L86_CTRL_REG,0x10|outStream);
	LE1VE_MT89L86_REG_WRITE(slotNo,(MT89L86_CHAN_REG_BASE+outChannel)*4,((inStream<<5)|inChannel));

	/*Stream#In ,Connection High*/
    /*Connection Memory High bit0: 1- OE  enables the output drivers on a per-channel basis.
                                   0 - disable*/
	LE1VE_MT89L86_REG_WRITE(slotNo,MT89L86_CTRL_REG,0x10|(1<<3)|inStream);
	LE1VE_MT89L86_REG_WRITE(slotNo,(MT89L86_CHAN_REG_BASE+inChannel)*4,0x1);

	/*Stream#Out ,Connection High*/
	LE1VE_MT89L86_REG_WRITE(slotNo,MT89L86_CTRL_REG,0x10|(1<<3)|outStream);
	LE1VE_MT89L86_REG_WRITE(slotNo,(MT89L86_CHAN_REG_BASE+outChannel)*4,0x1);

	return OK;
}



LOCAL STATUS le1ve_MT8986SwitchDisable(unsigned int slotNo,int inStream,int outStream ,int inChannel, int outChannel)
{

    if (outStream == 0x02)
    {
    	/*Stream#In ,Connection High*/
    	LE1VE_MT89L86_REG_WRITE(slotNo,MT89L86_CTRL_REG,0x10|(1<<3)|inStream);
    	LE1VE_MT89L86_REG_WRITE(slotNo,(MT89L86_CHAN_REG_BASE+inChannel)*4,0x00);

    	/*Stream#out Connection High*/
    	LE1VE_MT89L86_REG_WRITE(slotNo,MT89L86_CTRL_REG,0x10|(1<<3)|outStream);
    	LE1VE_MT89L86_REG_WRITE(slotNo,(MT89L86_CHAN_REG_BASE+outChannel)*4,0x00);

    	/*Stream#out ,Connection Low*/
    	LE1VE_MT89L86_REG_WRITE(slotNo,MT89L86_CTRL_REG,0x10|outStream);
    	LE1VE_MT89L86_REG_WRITE(slotNo,(MT89L86_CHAN_REG_BASE+outChannel)*4,0x055);

    	/*Stream#out Connection High*/
    	LE1VE_MT89L86_REG_WRITE(slotNo,MT89L86_CTRL_REG,0x10|(1<<3)|outStream);
    	LE1VE_MT89L86_REG_WRITE(slotNo,(MT89L86_CHAN_REG_BASE+outChannel)*4,0x05);
    }
	else
	{
    	/*Stream#In ,Connection High*/
    	LE1VE_MT89L86_REG_WRITE(slotNo,MT89L86_CTRL_REG,0x10|(1<<3)|inStream);
    	LE1VE_MT89L86_REG_WRITE(slotNo,(MT89L86_CHAN_REG_BASE+inChannel)*4,0x00);

    	/*Stream#out Connection High*/
    	LE1VE_MT89L86_REG_WRITE(slotNo,MT89L86_CTRL_REG,0x10|(1<<3)|outStream);
    	LE1VE_MT89L86_REG_WRITE(slotNo,(MT89L86_CHAN_REG_BASE+outChannel)*4,0x00);
	}
	return OK;
}

/*====================================DEBUG==============================*/

void   enableMt8986(int slot)
{
    int inStream, outStream, chan; 

    if (slot > 8 )
    {
        printf("Error slot number!\n");
        return;
    }
    for (inStream = 0; inStream < 4; inStream ++)
    {
        outStream = inStream + 4;
        for (chan = 0; chan <= 31; chan ++)
            le1ve_MT8986SwitchEnable(slot, inStream, outStream, chan, chan);
    }
    
}