tk_vtxsa.h

在ARM7和UC/OSII的平台上实现了GPS自动报站的功能,涉及GPS模块LEA_4S的驱动,位置速寻算法,语音芯片ISD4004的录放音驱动,LED页面管理等等.从启动代码到操作系统的移植以及到业

/*
 * FILENAME: tk_vtxsa.h
 *
 * Copyright  2001 By InterNiche Technologies Inc. All rights reserved
 *
 * Definitions to map NicheTask "TK_" macros to Mentor Graphics VRTXsa RTOS
 * and Interniche Wrapper functions in ..\misclib\tk_vtxsa.c
 * 
 * MODULE: H
 *
 * PORTABLE: yes (within VRTXsa systems)
 *
 * 08/15/2001 - Aditya Kotha
 */

#ifndef TK_VTXSA_H
#define TK_VTXSA_H

#ifndef VRTX_SA
#error - must define VRTX_SA in ipport.h to use this file
#endif /* VRTX_SA */

/* Define the VRTXsa object control TK_ macros...  */

/* define the default priority for all net related tasks */

#ifndef NET_PRIORITY
#define  NET_PRIORITY   240 /* all net tasks get a fairly low priority */
#endif /* NET_PRIORITY */

/* macros for task type, entry, and name */
#define  TK_ENTRY(name)      void name(int parm)
#define  TK_OBJECT(tid)      int tid
#define  TK_OBJECT_PTR(tid)  int * tid
#define  TK_OBJECT_REF       TK_OBJECT
#define  TK_ENTRY_PTR(name)  void(*name)(int)
#define  TK_THIS             Sc_Tinquiry()    /* wrapper for sc_tinquiry() */
#define  TK_SLEEP(count)     sc_delay(count * VRTX_SA_SLEEP_TIME)

#ifndef  TK_RETURN_ERROR
#define  TK_RETURN_ERROR()   return
#endif
#ifndef  TK_RETURN_OK
#define  TK_RETURN_OK()      return
#endif


/*
 * synchronization primitives
 * 
 * Need one or the other of LOCK_NET_RESOURCE/UNLOCK_NET_RESOURCE and
 * ENTER_CRIT_SECTION/EXIT_CRIT_SECTION.  These should be implementable
 * as either functions or macros, so we allow e.g. ipport.h_h to 
 * override these definitions by defining the names as macros.
 * RTOS targets generally use LOCK_NET_RESOURCE/UNLOCK_NET_RESOURCE
 * so we default to function declaractions for them.
 *
 */
#ifndef LOCK_NET_RESOURCE
void LOCK_NET_RESOURCE(void * semaphore);
#endif
#ifndef UNLOCK_NET_RESOURCE
void UNLOCK_NET_RESOURCE(void * semaphore);
#endif
#ifndef ENTER_CRIT_SECTION
#define  ENTER_CRIT_SECTION(p)
#endif
#ifndef EXIT_CRIT_SECTION
#define  EXIT_CRIT_SECTION(p)
#endif

/* set up pointers to semaphores as void * so we don't
 * have to include tx_api.h in every file in the build... 
 */
#ifndef NET_RESID
extern   void *      net_task_sem_ptr;
#define  NET_RESID   (net_task_sem_ptr)
#endif
#ifndef RXQ_RESID
extern   void *      receiveq_sem_ptr;
#define  RXQ_RESID   (receiveq_sem_ptr)
#endif
#ifndef FREEQ_RESID
extern   void *      freeq_sem_ptr;
#define  FREEQ_RESID (freeq_sem_ptr)
#endif

#define tk_yield Sc_Delay  /* Wrapper for sc_delay(0); */


/* declare tasks which need to be accessed by system code */
extern   int   to_pingcheck;
extern   int   to_netmain;
extern   int   to_emailer;
extern   int   to_ftpclnt;

/* map TK_ macros to VRTXsa: */
#define  TK_BLOCK()  Sc_Tsuspend()   /* Wrapper to Suspend calling task */

/* (Id) is always of type TK_OBJECT_PTR */ 
#define  TK_WAKE(Id) Sc_Wake(Id)     /* Wrapper for VRTXsa's sc_tresume() */

/* (ev) is always of type TK_OBJECT_REF */
#define  TK_WAKE_EVENT(ev)   Sc_Tresume((int)ev)

/* define macros to  wake net task on packet receipt, etc */
#define  SignalPktDemux()  Sc_Tresume(to_netmain)
#define  SignalEmailTask() Sc_Tresume(to_emailer)
#define  SignalFtpClient() Sc_Tresume(to_ftpclnt)

#endif  /* TK_VTXSA_H */