/* * dspapps/dsp/task_testB/task_test5.c * * DSP task example: active word receive * * Copyright (C) 2002,2003 Nokia Corporation * * Written by Toshihiro Kobayashi <toshihiro.kobayashi@nokia.com> * * 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 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * $Id: task_test5.c * $Revision: 2.0 * $Date: 2003/11/11 * */#include <std.h>#include <mem.h>#include "mailbox.h"#include "tokliBIOS.h"static Uns	t5_rcv_wdsnd(struct dsptask *task, Uns data);static Uns	t5_rcv_tctl(struct dsptask *task, Uns ctlcmd);static Uns	t5_snd_wdreq(struct dsptask *task);struct task_t5 {	struct dsptask	task_head;	Void	*t1q_id;	Int	waiting;};struct task_t5 task_test5 = {	{		TID_MAGIC,	// tid		"test5",	// name		MBCMD_TTYP_ASND | MBCMD_TTYP_AREQ,				// ttyp: active word snd, active word rcv		t5_rcv_wdsnd,	// rcv_snd		NULL,		// rcv_req		t5_rcv_tctl,	// rcv_tctl		NULL		// tsk_attrs	},	MEM_ILLEGAL, // t1q_id};static Uns t5_rcv_wdsnd(struct dsptask *task, Uns data){	struct task_t5	*task_t5 = (struct task_t5*)task;	wdsnd(task, data); // echo back	task_t5->waiting = 0;	return 0;}static Uns t5_rcv_tctl(struct dsptask *task, Uns ctlcmd){	struct task_t5	*task_t5 = (struct task_t5*)task;	switch(ctlcmd) {		case MBCMD_TCTL_TEN:			if(task_t5->t1q_id != MEM_ILLEGAL) // already registered				return 0;			task_t5->t1q_id = register_tq_1s(task, t5_snd_wdreq);			if(task_t5->t1q_id == MEM_ILLEGAL)				return MBCMD_EID_NORES;			task_t5->waiting = 0;			return 0;		case MBCMD_TCTL_TDIS:			unregister_tq_1s(task, task_t5->t1q_id);			task_t5->t1q_id = MEM_ILLEGAL;			return 0;		default:			return MBCMD_EID_BADTCTL;	}}static Uns t5_snd_wdreq(struct dsptask *task){	struct task_t5	*task_t5 = (struct task_t5*)task;	if(!task_t5->waiting)		wdreq(task);	task_t5->waiting = 1;	return 0;}