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/*! \file include/sys/program.h
\brief Internal Interface: program data structures and functions
\author Markus L. Noga <markus@noga.de>
*/
/*
* The contents of this file are subject to the Mozilla Public License
* Version 1.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License
* at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and
* limitations under the License.
*
* The Original Code is legOS code, released October 17, 1999.
*
* The Initial Developer of the Original Code is Markus L. Noga.
* Portions created by Markus L. Noga are Copyright (C) 1999
* Markus L. Noga. All Rights Reserved.
*
* Contributor(s): Markus L. Noga <markus@noga.de>
*/
#ifndef __program_h__
#define __program_h__
#ifdef __cplusplus
extern "C" {
#endif
#include <config.h>
#ifdef CONF_PROGRAM
#include <tm.h>
///////////////////////////////////////////////////////////////////////
//
// Definitions
//
///////////////////////////////////////////////////////////////////////
#define PROG_MAX 8 //!< maximum number of programs
#ifndef DOXYGEN_SHOULD_SKIP_INTERNALS
/**
* The program control structure
* @internal
*/
typedef struct {
void *text; //!< origin of text segment
void *data; //!< origin of data segment (imm. after text)
void *bss; //!< origin of bss segment (imm. after data)
void *data_orig; //!< origin of backup copy of data segment
size_t text_size; //!< text segment size in bytes
size_t data_size; //!< data segment size in bytes
size_t bss_size; //!< bss segment size in bytes
size_t stack_size; //!< stack segment size in bytes
size_t start; //!< offset from text segment to start into.
priority_t prio; //!< priority to run this program at
size_t downloaded; //!< number of bytes downloaded so far.
} program_t;
/**
* @internal
*/
typedef enum {
CMDacknowledge, //!< 1:
CMDdelete, //!< 1+ 1: b[nr]
CMDcreate, //!< 1+12: b[nr] s[textsize] s[datasize]
// s[bsssize] s[stacksize]
// s[start] b[prio]
CMDoffsets, //!< 1+ 7: b[nr] s[text] s[data] s[bss]
CMDdata, //!< 1+>3: b[nr] s[offset] array[data]
CMDrun, //!< 1+ 1: b[nr]
CMDirmode, //!< 1+ 1: b[0=near/1=far]
CMDsethost, //!< 1+ 1: b[hostaddr]
CMDlast //!< ?
} packet_cmd_t;
#endif /* DOXYGEN_SHOULD_SKIP_INTERNALS */
///////////////////////////////////////////////////////////////////////
//
// Variables
//
///////////////////////////////////////////////////////////////////////
extern volatile unsigned cprog; //!< the current program
///////////////////////////////////////////////////////////////////////
//
// Functions
//
///////////////////////////////////////////////////////////////////////
//! stop program
extern void program_stop(int flag);
//! check if a given program is valid.
/*! \return 0 if invalid */
extern int program_valid(unsigned nr);
//! initialize program support
extern void program_init();
//! shutdown program support
extern void program_shutdown();
#endif // CONF_PROGRAM
#ifdef __cplusplus
}
#endif
#endif // __program_h__
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