port.h

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/*
 *  Copyright (c) 2004-2006, Dennis Kuschel.
 *  All rights reserved. 
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions
 *  are met:
 *
 *   1. Redistributions of source code must retain the above copyright
 *      notice, this list of conditions and the following disclaimer.
 *   2. Redistributions in binary form must reproduce the above copyright
 *      notice, this list of conditions and the following disclaimer in the
 *      documentation and/or other materials provided with the distribution.
 *   3. The name of the author may not be used to endorse or promote
 *      products derived from this software without specific prior written
 *      permission. 
 *
 *  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
 *  OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 *  ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
 *  INDIRECT,  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 *  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 *  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 *  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 *  STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 *  OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */


#ifndef _PORT_H
#define _PORT_H


/*---------------------------------------------------------------------------
 *  ARCHITECTURE / CPU SPECIFIC SETTINGS
 *-------------------------------------------------------------------------*/

#define MVAR_t                   char

#define MVAR_BITS                8  /* = (sizeof(MVAR_t) * 8) */

#define MPTR_t                   long

#define POSCFG_ALIGNMENT         2

#define POSCFG_ISR_INTERRUPTABLE 0

#define POSCFG_TASKSTACKTYPE     0

#define POSCFG_CALLINITARCH      1

#define POSCFG_DYNAMIC_MEMORY    0

#define POSCFG_DYNAMIC_REFILL    0

#define POS_MEM_ALLOC(bytes)     nosMemAlloc(bytes)

/*---------------------------------------------------------------------------
 *  LOCKING (DISABLE INTERRUPTS IN CRITICAL SECTIONS) 
 *-------------------------------------------------------------------------*/

#define POSCFG_LOCK_USEFLAGS     0

#define POSCFG_LOCK_FLAGSTYPE    register VAR_t

#ifdef GCC
#define POS_SCHED_LOCK           asm volatile("pushf\n" "cli\n"::)
#else
#define POS_SCHED_LOCK           asm { PUSHF; CLI }
#endif

#ifdef GCC
#define POS_SCHED_UNLOCK         asm volatile("popf\n"::)
#else
#define POS_SCHED_UNLOCK         asm POPF
#endif

#define POS_IRQ_DISABLE_ALL      POS_SCHED_LOCK

#define POS_IRQ_ENABLE_ALL       POS_SCHED_UNLOCK

/*---------------------------------------------------------------------------
 *  FINDBIT - DEFINITIONS FOR GENERIC FILE fbit_gen.c
 *-------------------------------------------------------------------------*/

#define POSCFG_FBIT_USE_LUTABLE      0

#define POSCFG_FBIT_BITSHIFT         1

/*---------------------------------------------------------------------------
 *  PORT DEPENDENT NANO LAYER CONFIGURATION
 *-------------------------------------------------------------------------*/

#define NOSCFG_STACK_GROWS_UP        0

#define NOSCFG_DEFAULT_STACKSIZE     2048

#define NOSCFG_CONOUT_HANDSHAKE      0

#define NOSCFG_CONOUT_FIFOSIZE       256

/*---------------------------------------------------------------------------
 *  USER DEFINED CONTENT OF TASK ENVIRONMENT
 *-------------------------------------------------------------------------*/

#if DOX!=0

#define POS_USERTASKDATA  void *stackptr;
#else

/* Here is an example for different memory handling types:
 */

#if POSCFG_TASKSTACKTYPE == 0

#define POS_USERTASKDATA \
   void  *stackptr;

#elif POSCFG_TASKSTACKTYPE == 1

#define POS_USERTASKDATA \
   void  *stackptr; \
   void  *stackroot;

#elif POSCFG_TASKSTACKTYPE == 2

#define FIXED_STACK_SIZE 0x0600
#define POS_USERTASKDATA \
   void  *stackptr; \
   unsigned short stack[FIXED_STACK_SIZE];

#endif

#endif /* DOX */

#endif /* _PORT_H */

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