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/*-------------------------------------*/
/* memchnl.h */
/* Last change : 16. 5.95 */
/*-------------------------------------*/
/*
* $Id$
*/
#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
/*-------------*/
/* End of file */
/*-------------*/
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