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/*

 *

  Copyright (c) Eicon Networks, 2002.

 *

  This source file is supplied for the use with

  Eicon Networks range of DIVA Server Adapters.

 *

  Eicon File Revision :    2.1

 *

  This program is free software; you can redistribute it and/or modify

  it under the terms of the GNU General Public License as published by

  the Free Software Foundation; either version 2, or (at your option)

  any later version.

 *

  This program is distributed in the hope that it will be useful,

  but WITHOUT ANY WARRANTY OF ANY KIND WHATSOEVER INCLUDING ANY

  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

  See the GNU General Public License for more details.

 *

  You should have received a copy of the GNU General Public License

  along with this program; if not, write to the Free Software

  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

 *

 */

#ifndef __DIVA_SOFT_DSP_TASK_ENTRY_H__

#define __DIVA_SOFT_DSP_TASK_ENTRY_H__

/*

 The soft DSP image is described by binary header contained on begin of this

 image:

OFFSET FROM IMAGE START |  VARIABLE

------------------------------------------------------------------------

 DIVA_MIPS_TASK_IMAGE_LINK_OFFS   |  link to the next image

  ----------------------------------------------------------------------

 DIVA_MIPS_TASK_IMAGE_GP_OFFS    |  image gp register value, void*

  ----------------------------------------------------------------------

 DIVA_MIPS_TASK_IMAGE_ENTRY_OFFS   |  diva_mips_sdp_task_entry_t*

  ----------------------------------------------------------------------

 DIVA_MIPS_TASK_IMAGE_LOAD_ADDR_OFFS |  image image start address (void*)

  ----------------------------------------------------------------------

 DIVA_MIPS_TASK_IMAGE_END_ADDR_OFFS |  image image end address   (void*)

  ----------------------------------------------------------------------

 DIVA_MIPS_TASK_IMAGE_ID_STRING_OFFS |  image id string char[...];

  ----------------------------------------------------------------------

 */

#define DIVA_MIPS_TASK_IMAGE_LINK_OFFS   0x6C

#define DIVA_MIPS_TASK_IMAGE_GP_OFFS    0x70

#define DIVA_MIPS_TASK_IMAGE_ENTRY_OFFS   0x74

#define DIVA_MIPS_TASK_IMAGE_LOAD_ADDR_OFFS 0x78

#define DIVA_MIPS_TASK_IMAGE_END_ADDR_OFFS 0x7c

#define DIVA_MIPS_TASK_IMAGE_ID_STRING_OFFS 0x80

/*

 This function is called in order to set GP register of this task

 This function should be always called before any function of the

 task is called

 */

typedef void (*diva_task_set_prog_gp_proc_t)(void* new_gp);

/*

 This function is called to clear .bss at task initialization step

 */

typedef void  (*diva_task_sys_reset_proc_t)(void);

/*

 This function is called in order to provide GP of master call to

 task, that will be used by calls from the task to the master

 */

typedef void (*diva_task_set_main_gp_proc_t)(void* main_gp);

/*

 This function is called to provide address of 'dprintf' function

 to the task

 */

typedef word (*diva_prt_proc_t)(char *, ...);

typedef void (*diva_task_set_prt_proc_t)(diva_prt_proc_t fn);

/*

 This function is called to set task PID

 */

typedef void (*diva_task_set_pid_proc_t)(dword id);

/*

 This function is called for run-time task init

 */

typedef int (*diva_task_run_time_init_proc_t)(void*, dword);

/*

 This function is called from system scheduler or from timer

 */

typedef void (*diva_task_callback_proc_t)(void);

/*

 This callback is used by task to get current time im mS

  */

typedef dword (*diva_task_get_tick_count_proc_t)(void);

typedef void (*diva_task_set_get_time_proc_t)(\

                diva_task_get_tick_count_proc_t fn);

typedef struct _diva_mips_sdp_task_entry {

 diva_task_set_prog_gp_proc_t  set_gp_proc;

 diva_task_sys_reset_proc_t   sys_reset_proc;

 diva_task_set_main_gp_proc_t  set_main_gp_proc;

 diva_task_set_prt_proc_t    set_dprintf_proc;

 diva_task_set_pid_proc_t    set_pid_proc;

 diva_task_run_time_init_proc_t run_time_init_proc;

 diva_task_callback_proc_t    task_callback_proc;

 diva_task_callback_proc_t    timer_callback_proc;

 diva_task_set_get_time_proc_t  set_get_time_proc;

 void*              last_entry_proc;

} diva_mips_sdp_task_entry_t;

/*

 'last_entry_proc' should be set to zero and is used for future extensuios

 */

typedef struct _diva_mips_sw_task {

  diva_mips_sdp_task_entry_t  sdp_entry;

  void*                       sdp_gp_reg;

  void*                       own_gp_reg;

} diva_mips_sw_task_t;

#if !defined(DIVA_BRI2F_SDP_1_NAME)

#define DIVA_BRI2F_SDP_1_NAME "sdp0.2q0"

#endif

#if !defined(DIVA_BRI2F_SDP_2_NAME)

#define DIVA_BRI2F_SDP_2_NAME "sdp1.2q0"

#endif

#endif