mustek backend in OS/2

Bohumir Horeni (horeni@login.cz)
Mon, 15 Jun 1998 20:43:57 MET

OS/2 required minor changes in mustek backend ( testetd with MFS-12000SP
firmware 1.02 ), maybe in other backends if fork() is used.

(1) required for OS/2 if fork() used in backend
-----------------------------------------------

/*=============*/
/*sanei_scsi.c */
/*=============*/
/* static int */
/* open_aspi (void) */

297,298c297,298
< rc = DosAllocSharedMem (&aspi_buf, 0, sanei_scsi_max_request_size,
< OBJ_TILE | PAG_READ | PAG_WRITE | PAG_COMMIT | OBJ_GETTABLE );

---
>   rc = DosAllocMem (&aspi_buf, sanei_scsi_max_request_size,
> 		    OBJ_TILE | PAG_READ | PAG_WRITE | PAG_COMMIT);


               /* new function for mustek backend  */
               /* ( umax, qcam ... )               */       
368,376d367


< int sanei_fork_init()
< {  
< #if USE == OS2_INTERFACE
<   if(DosOpenEventSem(0,&postSema)||
<      DosGetSharedMem(aspi_buf,PAG_READ|PAG_WRITE))return -1;
< #endif
<   return SANE_STATUS_GOOD;
< }
< 
               /*  #ifndef WE_HAVE_FIND_DEVICES */
               /*  missing parameter in         */
               /*  sanei_scsi_find_devices      */
2087d2077
<                          const char *type,


/*===========================*/
/* mustek.c ( umax.c, .... ) */
/*===========================*/


 /*  s->reader_pid = fork (); */
 /*  if (s->reader_pid == 0)  */
 /*   {                       */
 /*     sigset_t ignore_set;  */
 /*     struct SIGACTION act; */


2760,2762d2759
< 
<       status=sanei_fork_init();
<       if (status != SANE_STATUS_GOOD)_exit(status);


(2) Scanner MFS-12000SP firmware 1.02
-------------------------------------


 a)  stop_scan (s); failed in OS/2 


     if (DosWaitEventSem (postSema, -1) ||	  /* wait forever for sema. */
            DosResetEventSem (postSema, &count))  /* reset semaphore. */
     really "wait forever" -> ^C  ; work ok if stop_scan() removed


 b)  ? maybe better default value ( ... protection against exceeding
     the physical scan area height, ... small buffer 32kB etc. ) 
     s->val[OPT_BACKTRACK].w = SANE_TRUE;  /* SANE_FALSE; */ 




Regards


  Bohumir Horeni                     horeni@login.cz







--
Source code, list archive, and docs: http://www.mostang.com/sane/
To unsubscribe: echo unsubscribe sane-devel | mail majordomo@mostang.com