/* * dspapps/dsp/task_testB/timer.c * * DSP timer module * * Copyright (C) 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: timer.c * $Revision: 2.0 * $Date: 2003/11/11 * */#include <std.h>#include <hwi.h>#include <tsk.h>#include <mem.h>#include "omap1510.h"#include "list.h"#include "tokliBIOSlib.h"#define __timer1_start() \	do {\		outw(inw(_CNTL_TIMER1) | _CNTL_TIMERn_BIT_ST,\		     _CNTL_TIMER1);\	} while(0)#define __timer1_stop() \	do {\		outw(inw(_CNTL_TIMER1) & ~_CNTL_TIMERn_BIT_ST,\		     _CNTL_TIMER1);\	} while(0)#ifndef TQ_USE_MALLOCstatic struct procq	tq_1s_pool[TQ_MAX];#endifLIST_HEAD(tq_1s);/* * Timer1 is configured in DSP/BIOS configuration, * but we want to set it not to be changed by DSP domain clock * frequency. * Therefore, we need set it up again here. */Void init_timer(Void){	LgUns	ldval;		__timer1_stop();	// 12MHz for timer clock	outw(inw(_DSP_CKCTL) & ~_DSP_CKCTL_BIT_TIMXO, _DSP_CKCTL);//	// enable timer clock//	outw(inw(_DSP_IDLECT2) | _DSP_IDLECT2_BIT_EN_TIMCK,//	     _DSP_IDLECT2);	// Autoload mode, PTV=0	ldval = 12000000L/2/100; // 1/100 s	outw(ldval>>16,    _LOAD_TIM_HI1);	outw(ldval&0xffff, _LOAD_TIM_LO1);	outw(_CNTL_TIMERn_BIT_AR |	     _CNTL_TIMERn_BIT_PTV(0) |	     _CNTL_TIMERn_BIT_CLOCK_ENABLE, _CNTL_TIMER1);	__timer1_start();}Void timer1_start(Void){	__timer1_start();}Void timer1_stop(Void){	__timer1_stop();}Void init_tq(Void){#ifndef TQ_USE_MALLOC	Int	i;		for(i=0; i<TQ_MAX; i++) {		tq_1s_pool[i].tid = MBCMD_TID_FREE;	}#endif /* TQ_USE_MALLOC */}Void *register_tq_1s(struct dsptask *task,		     Uns (*f)(struct dsptask *task)){	struct procq	*new;	Uns	intm_saved;#ifdef TQ_USE_MALLOC	new = MEM_alloc(MEM->MALLOCSEG, sizeof(struct procq), 2);	if(new == MEM_ILLEGAL)		return MEM_ILLEGAL;	new->func = f;	new->tid  = task->tid;	intm_saved = HWI_disable();	list_add_tail((struct list_head *)new, &tq_1s);	HWI_restore(intm_saved);#else /* TQ_USE_MALLOC */	Int	i;	intm_saved = HWI_disable();	for(i=0; i<TQ_MAX; i++) {		if(tq_1s_pool[i].tid == MBCMD_TID_FREE) {			new = &tq_1s_pool[i];			goto add;		}	}	HWI_restore(intm_saved);	return MEM_ILLEGAL;add:	new->func = f;	new->tid  = task->tid;	list_add_tail((struct list_head *)new, &tq_1s);	HWI_restore(intm_saved);#endif /* TQ_USE_MALLOC */	return new;}Void unregister_tq_1s(struct dsptask *task, Void *id){	struct list_head	*p;	Uns	intm_saved;	intm_saved = HWI_disable();	list_for_each(p, &tq_1s) {		if(p == id) {			list_del(p);			break;		}	}	HWI_restore(intm_saved);#ifdef TQ_USE_MALLOC	MEM_free(MEM->MALLOCSEG, id, sizeof(struct procq));#else	((struct procq*)id)->tid = MBCMD_TID_FREE;#endif}/* * PRD functions */Void prd_10ms(Void){	TSK_yield();}Void prd_1s(Void){	struct list_head	*p, *next;	Uns	eid;#ifdef DEBUG_WAKEUP_CNT	LgUns	wakeup_cnt;#endif /* DEBUG_WAKEUP_CNT */	/*	 * Do not use list_for_each().	 * We must hold p->next before calling func()	 * in order to allow the queue to suicide	 * (i.e. call unregister() itself in func().)	 */	for(p = tq_1s.next; p != &tq_1s; p = next) {		struct procq	*pq = (struct procq *)p;		Uns		tid = pq->tid;		next = p->next;		eid = pq->func(dsptask[tid]);		/*		 * after func(), we shold not to access p or pq		 * because it can be deleted!		 */		if(eid) {			sys_cmderr(eid, mbcmd(0,tid));		}	}#ifdef DEBUG_WAKEUP_CNT	if((wakeup_cnt = get_wakeup_cnt()) > 0) {		mbsend(mbcmd(MBCMD_ERR, MBCMD_EID_DEBUG), wakeup_cnt>>16);		mbsend(mbcmd(MBCMD_ERR, MBCMD_EID_DEBUG), wakeup_cnt&0xffff);		clear_wakeup_cnt();	}#endif /* DEBUG_WAKEUP_CNT */}