amlogic-aml8726-mx-kernel/drivers/amlogic/audiodsp/dsp_monitor.c

#include <linux/module.h>
#include <linux/sched.h>
#include <linux/kernel.h>
#include <linux/cache.h>
#include <asm/cacheflush.h>
//#include <asm/arch/am_regs.h>
#include <mach/am_regs.h>
//#include <asm/bsp.h>

#include "dsp_microcode.h"
#include "audiodsp_module.h"
#include "dsp_control.h"
//#include <asm/dsp/dsp_register.h>

static void audiodsp_monitor(unsigned long arg)
{
	struct audiodsp_priv *priv=(struct audiodsp_priv *)arg;
	static unsigned long old_dsp_jiffies=0;
	static unsigned long jiffies_error=0;
	unsigned long dsp_jiffies;
	unsigned long dsp_status;

	
	dsp_jiffies=DSP_RD(DSP_JIFFIES);
	dsp_status=DSP_RD(DSP_STATUS);

	if(old_dsp_jiffies==dsp_jiffies)
		jiffies_error++;
	else
		{
		jiffies_error=0;
		old_dsp_jiffies=dsp_jiffies;
		}
	if(jiffies_error>5)
		{
		DSP_PRNT("Found audio dsp have some problem not running \n");
		DSP_PRNT("audio jiffies=%ld\n",old_dsp_jiffies);
		DSP_PRNT("audio status=%lx\n",dsp_status);
		}
	priv->dsp_mointer.expires=jiffies+HZ;
	add_timer(&priv->dsp_mointer);
}



void start_audiodsp_monitor(struct audiodsp_priv *priv)
{	
	priv->dsp_mointer.expires=jiffies;
	add_timer(&priv->dsp_mointer);
}

void stop_audiodsp_monitor(struct audiodsp_priv *priv)
{
	del_timer_sync(&priv->dsp_mointer);
}
void init_audiodsp_monitor(struct audiodsp_priv *priv)
{
	setup_timer(&priv->dsp_mointer,audiodsp_monitor,(unsigned long)priv);
	
}
void release_audiodsp_monitor(struct audiodsp_priv *priv)
{
	stop_audiodsp_monitor(priv);
}