swis.h

ARM嵌入式系统开发--软件设计与优化随书源代码。开发环境asm+c

/*
 *  ____________________________________________________________________
 * 
 *  Copyright (c) 2002, Andrew N. Sloss, Chris Wright and Dominic Symes
 *  All rights reserved.
 *  ____________________________________________________________________
 * 
 *  NON-COMMERCIAL USE License
 *  
 *  Redistribution and use in source and binary forms, with or without 
 *  modification, are permitted provided that the following conditions 
 *  are met: 
 *  
 *  1. For NON-COMMERCIAL USE only.
 * 
 *  2. Redistributions of source code must retain the above copyright 
 *     notice, this list of conditions and the following disclaimer. 
 * 
 *  3. 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. 
 * 
 *  4. All advertising materials mentioning features or use of this 
 *     software must display the following acknowledgement:
 * 
 *     This product includes software developed by Andrew N. Sloss,
 *     Chris Wright and Dominic Symes. 
 * 
 *   THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS ``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 CONTRIBUTORS 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. 
 * 
 *  If you have questions about this license or would like a different
 *  license please email :
 * 
 * 	[e-mail]
 * 
 * 
 */
/***********************************************************************
 * Simple Little Operating System - SLOS
 ***********************************************************************/ 

/***********************************************************************
 *
 * Module       : swis.h
 * Description  : this file contain the various system calls swi numbers
 *                they all operate through the SLOS SWI entry 5507
 * OS           : SLOS 0.03
 * Platform	: generic
 * History      :
 *
 * December 7th 2001 Andrew N. Sloss
 * - start creating a SWI interface to SLOS system calls
 * 
 * Note         :
 *
 *  May need to move this in to a generic header sometime.
 *
 ***********************************************************************/
 
/***********************************************************************
 * MACROS
 ***********************************************************************/

#ifndef SLOS

/* ------------------------------------------------------------
 *
 * SWI: SLOS (5075)
 * Description: allows entry into the SLOS operating system
 * Example:
 *
 *     SWI 5075
 *
 * ------------------------------------------------------------
 */

#define SLOS 	5075

/* ------------------------------------------------------------ 

 Event: Event_IODeviceInit
 Description: Connects into the device drive framework
 Type: Software Interrupt (SWI)
 Pre conditions:

 	none...

 Post conditions:
  	
 	none...
*/

#define Event_IODeviceInit   0x800

/* -----------------------------------------------------------

 Event: Event_IODeviceOpen
 Description: open an I/O Device 
 Type: Software Interrupt (SWI)
 Pre conditions:

 	r0 - (POINTER *) UID
	r1 - major
	r2 - minor

 Post conditions:
  	
 	r0 = (POINTER *) device_treestr

	if r0==0 then couldn't find a device driver
        if r0!=0 then device driver 

 Side effects:

	UID updated
*/

#define Event_IODeviceOpen         Event_IODeviceInit+1
#define Event_IODeviceClose        Event_IODeviceInit+2
#define Event_IODeviceWriteByte    Event_IODeviceInit+3
#define Event_IODeviceReadByte     Event_IODeviceInit+4	
#define Event_IODeviceWriteBit     Event_IODeviceInit+5
#define Event_IODeviceReadBit      Event_IODeviceInit+6	
#define Event_IODeviceWriteBlock   Event_IODeviceInit+7
#define Event_IODeviceReadBlock    Event_IODeviceInit+8

/************************************************************************
 * Low Level DEBUG / Bringup
 ************************************************************************/

#define BringUp_Base            0x700
#define BringUp_Trace           BringUp_Base
#define BringUp_FatalError      BringUp_Base+1


#define SWI_WriteC              0x00
#define SWI_WriteHex            0x01
#define SWI_Write0              0x02
#define SWI_NewLine             0x03
#define SWI_ReadC               0x04
#define SWI_CLI                 0x05
#define SWI_WriteDec            0x06
#define SWI_PrettyPrint         0x07
#define SWI_ReportError         0x08
#define SWI_FlashWrite          0x09
#define SWI_FlashErase          0x0a
#define SWI_ServiceCall         0x0b
#define SWI_SetEnv              0x0c
#define SWI_ReadLine            0x0e
#define SWI_GetEnv              0x10
#define SWI_Exit                0x11
#define SWI_EnterOS             0x16
#define SWI_GetErrno            0x60
#define SWI_Clock               0x61
#define SWI_Time                0x63
#define SWI_Remove              0x64
#define SWI_Rename              0x65
#define SWI_Open                0x66
#define SWI_Close               0x68
#define SWI_Write               0x69
#define SWI_Read                0x6a
#define SWI_Seek                0x6b
#define SWI_Flen                0x6c
#define SWI_IsTTY               0x6e
#define SWI_TmpNam              0x6f
#define SWI_InstallHandler      0x70
#define SWI_GenerateError       0x71

typedef struct SwiRegs {
    unsigned r[13];     /* R0 - R12 */
    unsigned cpsr;      /* spsr on entry to SWI */
    unsigned pc;        /* lr on entry to SWI */
} SwiRegs;

/* typedef void (*CallBack)(void); */

#endif