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/*-------------------------------------*/

/* memchnl.h                           */

/* Last change : 16. 5.95              */

/*-------------------------------------*/

/*

 *  $Id: memchnl.h,v 1.2 2001-09-27 11:59:59 chris Exp $

 */

#ifndef _MEMCHNL_H_

#define _MEMCHNL_H_

/* The following is a dummy for now to be filled in

        as the message passing stuff gets migrated to

        I20 (or other standard )

*/

typedef

struct memMsg{

        int * foo;

} IOTrCBlk, * iotrcb_ptr_t;

typedef void * iotrcb_sgm_t;

  /* Interrupt arrived from X processor.

   * This is invoked from low-level interrupt dispatcher.

   */

extern void memChnlIntrFromHost(void);

  /* This IOT's processing is completed.

   * Signal the host, it can take it back.

   */

extern void memChnlIotFinished(IOTrCBlk *);

  /* A fault has just occured. Pass a signal over

   * memory channel.

   */

extern void memChnlI960Fault(void);

  /* IOT handler procedure.

   */

typedef void (* IotHandler)(IOTrCBlk *, int tr_req);

  /* Register handler to process IOT's.

   */

extern void memChnlRegisterHndl(IotHandler);

  /* Intermediate image buffer.

   * Defined in *.ld

   */

extern unsigned int downloadStart[];

typedef struct {

  int ptr_len;

  iotrcb_ptr_t ptr_loc;

  iotrcb_ptr_t * ptr_crnt;

  iotrcb_sgm_t * sgm_crnt;

} BufLookupHndl;

  /* Procedures to travel throughout the buffer page list.

   * It should be accomplished as below:

   *    ...

   *    BufLookupHndl hndl;

   *    char * buf;

   *    if (memBufLookupInit(& hndl, iot) != 0)  {

   *       while ((buf = memBufLookupNext(& hndl)) != 0)  {

   *         ... buf is a buffer page address.

   *       }

   *    }

   */

extern BufLookupHndl * memBufLookupInit(BufLookupHndl *, IOTrCBlk *);

extern void * memBufLookupNext(BufLookupHndl *);

#endif

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/* End of file */

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