gonzui

    1: /*
    2:  *----------------------------------------------------------------------
    3:  *    T-Kernel 2.0 Software Package
    4:  *
    5:  *    Copyright 2011 by Ken Sakamura.
    6:  *    This software is distributed under the latest version of T-License 2.x.
    7:  *----------------------------------------------------------------------
    8:  *
    9:  *    Released by T-Engine Forum(http://www.t-engine.org/) at 2011/05/17.
   10:  *    Modified by TRON Forum(http://www.tron.org/) at 2015/06/01.
   11:  *
   12:  *----------------------------------------------------------------------
   13:  */
   14: 
   15: /*
   16:  *      @(#)syscall.h (sys)
   17:  *
   18:  *      System call interface common definition
   19:  */
   20: 
   21: #ifndef __SYS_SYSCALL_H__
   22: #define __SYS_SYSCALL_H__
   23: 
   24: #include <basic.h>
   25: #include <sys/queue.h>
   26: 
   27: #ifdef __cplusplus
   28: extern "C" {
   29: #endif
   30: 
   31: /*
   32:  * Function number
   33:  */
   34: typedef struct {
   35: #if BIGENDIAN
   36:         UW     funcno:16;  /* Function number in SVC */
   37:         UW     parsize:8;  /* Parameter W size */
   38:         UW     svcno:8;    /* SVC number */
   39: #else
   40:         UW     svcno:8;    /* SVC number */
   41:         UW     parsize:8;  /* Parameter W size */
   42:         UW     funcno:16;  /* Function number in SVC */
   43: #endif
   44: } EFN;
   45: 
   46: typedef union {
   47:         EFN    efn;
   48:         UW     w;
   49: } FunctionNumber;
   50: 
   51: /*
   52:  * Command packet format (header portion)
   53:  *      Optional data is added after this header if necessary.
   54:  */
   55: typedef struct {
   56:         QUEUE          q;              /* For queue connection */
   57:         FunctionNumber fno;            /* Function number */
   58:         ID             tid;               /* Call task ID */
   59:         W              ret;                /* Return value */
   60:         void           *para;           /* Pointer to argument list */
   61: } SyscallCmdPacket;
   62: 
   63: /*
   64:  * Rendezvous call classification
   65:  */
   66: typedef enum {
   67:         Syscall_APL    = 0x00000001,      /* Call from application */
   68:         Syscall_OS     = 0x00000002,       /* Call from within OS */
   69:         Syscall_OWN    = 0x00000004       /* Self-originated redirect,
   70:                                            re-call, or other */
   71: } SyscallPattern;
   72: 
   73: #ifdef __cplusplus
   74: }
   75: #endif
   76: #endif /* __SYS_SYSCALL_H__ */