modemisl.h

用于TM1300/PNX1300系列DSP（主要用于视频处理）的操作系统pSOS。包括全部源码

/************************************************************************/
/*                                                                      */
/*   MODULE:  modemisl.h                                                */
/*   PRODUCT: pNA+,  OpEN TCP/IP PPP driver                             */
/*   PURPOSE: Modem Interface Specific Layer  module                    */
/*   DATE:    28 February, 1996                                         */
/*                                                                      */
/*----------------------------------------------------------------------*/
/*                                                                      */
/*              Copyright 1996, Integrated Systems, Inc.                */
/*                      ALL RIGHTS RESERVED                             */
/*                                                                      */
/*   Permission is hereby granted to licensees of Integrated Systems,   */
/*   Inc. products to use or abstract this computer program for the     */
/*   sole purpose of implementing a product based on Integrated         */
/*   Systems, Inc. products.   No other rights to reproduce, use,       */
/*   or disseminate this computer program, whether in part or in        */
/*   whole, are granted.                                                */
/*                                                                      */
/*   Integrated Systems, Inc. makes no representation or warranties     */
/*   with respect to the performance of this computer program, and      */
/*   specifically disclaims any responsibility for any damages,         */
/*   special or consequential, connected with the use of this program.  */
/*                                                                      */
/************************************************************************/
#ifndef __MODEMISL_H
#define __MODEMISL_H

#include "modemif.h"

#define MAXUNIT        4
#define DISIMAXSIZE    (1500 * 2)
#define DISIMAXBUFFERS 10

/* PPP packet assembler states */

#define WSTARTFLAG 1    /* Waiting for a start flag */
#define STARTFLAG  2    /* Waiting for the ppp packet */
#define PPPPACKET  3    /* Assembling a PPP packet */

#define PPP_FLAG   0x7e
#define USED       0xff
#define FREE       0x0
#define EMOPEN     0x3001
#define SETUPISSUED 0x1

struct Minbuf
{
    char *rptr;
    char *wptr;
    int  size;
    int  state;
};

struct  modemchan_stat {
    unsigned int state;
    unsigned int dialmode;
    unsigned int modem_state;
    unsigned int tx_packets;
    unsigned int tx_dropped;
    unsigned int tx_errors;
    unsigned int rx_packets;
    unsigned int rx_errors;
    struct Minbuf buf;
    Uid uid;
    Lid lid;
    void (*callback)(Lid, unsigned long, void *);
};

struct MSqueue
{
    struct MSqueue *next;
    struct MSqueue *prev;
};
typedef struct MSqueue MSqueue_t ;

extern int SysBaud;

extern unsigned long ModemISLInit(void);

#endif /* __MODEMISL_H__ */