au88x0_eq.c

linux-2.6.15.6

static void
vortex_EqHw_Program10Band(vortex_t * vortex, auxxEqCoeffSet_t * coefset)
{

	vortex_EqHw_SetTimeConsts(vortex, 0xc, 0x7fe0);

	vortex_EqHw_SetLeftCoefs(vortex, coefset->LeftCoefs);
	vortex_EqHw_SetRightCoefs(vortex, coefset->RightCoefs);

	vortex_EqHw_SetLeftGainsCurrent(vortex, coefset->LeftGains);

	vortex_EqHw_SetRightGainsTarget(vortex, coefset->RightGains);
	vortex_EqHw_SetLeftGainsTarget(vortex, coefset->LeftGains);

	vortex_EqHw_SetRightGainsCurrent(vortex, coefset->RightGains);
}

/* Read all EQ peaks. (think VU meter) */
static void vortex_EqHw_GetTenBandLevels(vortex_t * vortex, u16 peaks[])
{
	eqhw_t *eqhw = &(vortex->eq.this04);
	int i;

	if (eqhw->this04 <= 0)
		return;

	for (i = 0; i < eqhw->this04; i++)
		peaks[i] = hwread(vortex->mmio, 0x2B024 + i * 0x30);
	for (i = 0; i < eqhw->this04; i++)
		peaks[i + eqhw->this04] =
		    hwread(vortex->mmio, 0x2B204 + i * 0x30);
}

/* CEqlzr.s */

static int vortex_Eqlzr_GetLeftGain(vortex_t * vortex, u16 index, u16 * gain)
{
	eqlzr_t *eq = &(vortex->eq);

	if (eq->this28) {
		*gain = eq->this130[index];
		return 0;
	}
	return 1;
}

static void vortex_Eqlzr_SetLeftGain(vortex_t * vortex, u16 index, u16 gain)
{
	eqlzr_t *eq = &(vortex->eq);

	if (eq->this28 == 0)
		return;

	eq->this130[index] = gain;
	if (eq->this54)
		return;

	vortex_EqHw_SetLeftGainsSingleTarget(vortex, index, gain);
}

static int vortex_Eqlzr_GetRightGain(vortex_t * vortex, u16 index, u16 * gain)
{
	eqlzr_t *eq = &(vortex->eq);

	if (eq->this28) {
		*gain = eq->this130[index + eq->this10];
		return 0;
	}
	return 1;
}

static void vortex_Eqlzr_SetRightGain(vortex_t * vortex, u16 index, u16 gain)
{
	eqlzr_t *eq = &(vortex->eq);

	if (eq->this28 == 0)
		return;

	eq->this130[index + eq->this10] = gain;
	if (eq->this54)
		return;

	vortex_EqHw_SetRightGainsSingleTarget(vortex, index, gain);
}

#if 0
static int
vortex_Eqlzr_GetAllBands(vortex_t * vortex, u16 * gains, unsigned long *cnt)
{
	eqlzr_t *eq = &(vortex->eq);
	int si = 0;

	if (eq->this10 == 0)
		return 1;

	{
		if (vortex_Eqlzr_GetLeftGain(vortex, si, &gains[si]))
			return 1;
		if (vortex_Eqlzr_GetRightGain
		    (vortex, si, &gains[si + eq->this10]))
			return 1;
		si++;
	}
	while (eq->this10 > si) ;
	*cnt = si * 2;
	return 0;
}
#endif
static int vortex_Eqlzr_SetAllBandsFromActiveCoeffSet(vortex_t * vortex)
{
	eqlzr_t *eq = &(vortex->eq);

	vortex_EqHw_SetLeftGainsTarget(vortex, eq->this130);
	vortex_EqHw_SetRightGainsTarget(vortex, &(eq->this130[eq->this10]));

	return 0;
}

static int
vortex_Eqlzr_SetAllBands(vortex_t * vortex, u16 gains[], unsigned long count)
{
	eqlzr_t *eq = &(vortex->eq);
	int i;

	if (((eq->this10) * 2 != count) || (eq->this28 == 0))
		return 1;

	for (i = 0; i < count; i++) {
		eq->this130[i] = gains[i];
	}
	
	if (eq->this54)
		return 0;
	return vortex_Eqlzr_SetAllBandsFromActiveCoeffSet(vortex);
}

static void
vortex_Eqlzr_SetA3dBypassGain(vortex_t * vortex, unsigned long a,
			      unsigned long b)
{
	eqlzr_t *eq = &(vortex->eq);
	int eax, ebx;

	eq->this58 = a;
	eq->this5c = b;
	if (eq->this54)
		eax = eq->this0e;
	else
		eax = eq->this0a;
	ebx = (eax * eq->this58) >> 0x10;
	eax = (eax * eq->this5c) >> 0x10;
	vortex_EqHw_SetA3DBypassGain(vortex, ebx, eax);
}

static void vortex_Eqlzr_ProgramA3dBypassGain(vortex_t * vortex)
{
	eqlzr_t *eq = &(vortex->eq);
	int eax, ebx;

	if (eq->this54)
		eax = eq->this0e;
	else
		eax = eq->this0a;
	ebx = (eax * eq->this58) >> 0x10;
	eax = (eax * eq->this5c) >> 0x10;
	vortex_EqHw_SetA3DBypassGain(vortex, ebx, eax);
}

static void vortex_Eqlzr_ShutDownA3d(vortex_t * vortex)
{
	if (vortex != NULL)
		vortex_EqHw_ZeroA3DIO(vortex);
}

static void vortex_Eqlzr_SetBypass(vortex_t * vortex, long bp)
{
	eqlzr_t *eq = &(vortex->eq);
	
	if ((eq->this28) && (bp == 0)) {
		/* EQ enabled */
		vortex_Eqlzr_SetAllBandsFromActiveCoeffSet(vortex);
		vortex_EqHw_SetBypassGain(vortex, eq->this08, eq->this08);
	} else {
		/* EQ disabled. */
		vortex_EqHw_SetLeftGainsTarget(vortex, (u16 *) (eq->this14));
		vortex_EqHw_SetRightGainsTarget(vortex, (u16 *) (eq->this14));
		vortex_EqHw_SetBypassGain(vortex, eq->this0c, eq->this0c);
	}
	vortex_Eqlzr_ProgramA3dBypassGain(vortex);
}

static void vortex_Eqlzr_ReadAndSetActiveCoefSet(vortex_t * vortex)
{
	eqlzr_t *eq = &(vortex->eq);

	/* Set EQ BiQuad filter coeficients */
	memcpy(&(eq->coefset), &asEqCoefsNormal, sizeof(auxxEqCoeffSet_t));
	/* Set EQ Band gain levels and dump into hardware registers. */
	vortex_Eqlzr_SetAllBands(vortex, eq_gains_normal, eq->this10 * 2);
}

static int vortex_Eqlzr_GetAllPeaks(vortex_t * vortex, u16 * peaks, int *count)
{
	eqlzr_t *eq = &(vortex->eq);

	if (eq->this10 == 0)
		return 1;
	*count = eq->this10 * 2;
	vortex_EqHw_GetTenBandLevels(vortex, peaks);
	return 0;
}

#if 0
static auxxEqCoeffSet_t *vortex_Eqlzr_GetActiveCoefSet(vortex_t * vortex)
{
	eqlzr_t *eq = &(vortex->eq);

	return (&(eq->coefset));
}
#endif
static void vortex_Eqlzr_init(vortex_t * vortex)
{
	eqlzr_t *eq = &(vortex->eq);

	/* Object constructor */
	//eq->this04 = 0;
	eq->this08 = 0;		/* Bypass gain with EQ in use. */
	eq->this0a = 0x5999;
	eq->this0c = 0x5999;	/* Bypass gain with EQ disabled. */
	eq->this0e = 0x5999;

	eq->this10 = 0xa;	/* 10 eq frequency bands. */
	eq->this04.this04 = eq->this10;
	eq->this28 = 0x1;	/* if 1 => Allow read access to this130 (gains) */
	eq->this54 = 0x0;	/* if 1 => Dont Allow access to hardware (gains) */
	eq->this58 = 0xffff;
	eq->this5c = 0xffff;

	/* Set gains. */
	memset(eq->this14, 0, 2 * 10);

	/* Actual init. */
	vortex_EqHw_ZeroState(vortex);
	vortex_EqHw_SetSampleRate(vortex, 0x11);
	vortex_Eqlzr_ReadAndSetActiveCoefSet(vortex);

	vortex_EqHw_Program10Band(vortex, &(eq->coefset));
	vortex_Eqlzr_SetBypass(vortex, eq->this54);
	vortex_Eqlzr_SetA3dBypassGain(vortex, 0, 0);
	vortex_EqHw_Enable(vortex);
}

static void vortex_Eqlzr_shutdown(vortex_t * vortex)
{
	vortex_Eqlzr_ShutDownA3d(vortex);
	vortex_EqHw_ProgramPipe(vortex);
	vortex_EqHw_Disable(vortex);
}

/* ALSA interface */

/* Control interface */
static int
snd_vortex_eqtoggle_info(snd_kcontrol_t * kcontrol, snd_ctl_elem_info_t * uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
	uinfo->count = 1;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = 1;
	return 0;
}

static int
snd_vortex_eqtoggle_get(snd_kcontrol_t * kcontrol,
			snd_ctl_elem_value_t * ucontrol)
{
	vortex_t *vortex = snd_kcontrol_chip(kcontrol);
	eqlzr_t *eq = &(vortex->eq);
	//int i = kcontrol->private_value;

	ucontrol->value.integer.value[0] = eq->this54 ? 0 : 1;

	return 0;
}

static int
snd_vortex_eqtoggle_put(snd_kcontrol_t * kcontrol,
			snd_ctl_elem_value_t * ucontrol)
{
	vortex_t *vortex = snd_kcontrol_chip(kcontrol);
	eqlzr_t *eq = &(vortex->eq);
	//int i = kcontrol->private_value;

	eq->this54 = ucontrol->value.integer.value[0] ? 0 : 1;
	vortex_Eqlzr_SetBypass(vortex, eq->this54);

	return 1;		/* Allways changes */
}

static snd_kcontrol_new_t vortex_eqtoggle_kcontrol __devinitdata = {
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.name = "EQ Enable",
	.index = 0,
	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
	.private_value = 0,
	.info = snd_vortex_eqtoggle_info,
	.get = snd_vortex_eqtoggle_get,
	.put = snd_vortex_eqtoggle_put
};

static int
snd_vortex_eq_info(snd_kcontrol_t * kcontrol, snd_ctl_elem_info_t * uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = 2;
	uinfo->value.integer.min = 0x0000;
	uinfo->value.integer.max = 0x7fff;
	return 0;
}

static int
snd_vortex_eq_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
	vortex_t *vortex = snd_kcontrol_chip(kcontrol);
	int i = kcontrol->private_value;
	u16 gainL, gainR;

	vortex_Eqlzr_GetLeftGain(vortex, i, &gainL);
	vortex_Eqlzr_GetRightGain(vortex, i, &gainR);
	ucontrol->value.integer.value[0] = gainL;
	ucontrol->value.integer.value[1] = gainR;
	return 0;
}

static int
snd_vortex_eq_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
	vortex_t *vortex = snd_kcontrol_chip(kcontrol);
	int changed = 0, i = kcontrol->private_value;
	u16 gainL, gainR;

	vortex_Eqlzr_GetLeftGain(vortex, i, &gainL);
	vortex_Eqlzr_GetRightGain(vortex, i, &gainR);

	if (gainL != ucontrol->value.integer.value[0]) {
		vortex_Eqlzr_SetLeftGain(vortex, i,
					 ucontrol->value.integer.value[0]);
		changed = 1;
	}
	if (gainR != ucontrol->value.integer.value[1]) {
		vortex_Eqlzr_SetRightGain(vortex, i,
					  ucontrol->value.integer.value[1]);
		changed = 1;
	}
	return changed;
}

static snd_kcontrol_new_t vortex_eq_kcontrol __devinitdata = {
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.name = "                        .",
	.index = 0,
	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
	.private_value = 0,
	.info = snd_vortex_eq_info,
	.get = snd_vortex_eq_get,
	.put = snd_vortex_eq_put
};

static int
snd_vortex_peaks_info(snd_kcontrol_t * kcontrol, snd_ctl_elem_info_t * uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = 20;
	uinfo->value.integer.min = 0x0000;
	uinfo->value.integer.max = 0x7fff;
	return 0;
}

static int
snd_vortex_peaks_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
	vortex_t *vortex = snd_kcontrol_chip(kcontrol);
	int i, count;
	u16 peaks[20];

	vortex_Eqlzr_GetAllPeaks(vortex, peaks, &count);
	if (count != 20) {
		printk(KERN_ERR "vortex: peak count error 20 != %d \n", count);
		return -1;
	}
	for (i = 0; i < 20; i++)
		ucontrol->value.integer.value[i] = peaks[i];

	return 0;
}

static snd_kcontrol_new_t vortex_levels_kcontrol __devinitdata = {
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.name = "EQ Peaks",
	.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
	.info = snd_vortex_peaks_info,
	.get = snd_vortex_peaks_get,
};

/* EQ band gain labels. */
static char *EqBandLabels[10] __devinitdata = {
	"EQ0 31Hz\0",
	"EQ1 63Hz\0",
	"EQ2 125Hz\0",
	"EQ3 250Hz\0",
	"EQ4 500Hz\0",
	"EQ5 1KHz\0",
	"EQ6 2KHz\0",
	"EQ7 4KHz\0",
	"EQ8 8KHz\0",
	"EQ9 16KHz\0",
};

/* ALSA driver entry points. Init and exit. */
static int vortex_eq_init(vortex_t * vortex)
{
	snd_kcontrol_t *kcontrol;
	int err, i;

	vortex_Eqlzr_init(vortex);

	if ((kcontrol =
	     snd_ctl_new1(&vortex_eqtoggle_kcontrol, vortex)) == NULL)
		return -ENOMEM;
	kcontrol->private_value = 0;
	if ((err = snd_ctl_add(vortex->card, kcontrol)) < 0)
		return err;

	/* EQ gain controls */
	for (i = 0; i < 10; i++) {
		if ((kcontrol =
		     snd_ctl_new1(&vortex_eq_kcontrol, vortex)) == NULL)
			return -ENOMEM;
		strcpy(kcontrol->id.name, EqBandLabels[i]);
		kcontrol->private_value = i;
		if ((err = snd_ctl_add(vortex->card, kcontrol)) < 0)
			return err;
		//vortex->eqctrl[i] = kcontrol;
	}
	/* EQ band levels */
	if ((kcontrol = snd_ctl_new1(&vortex_levels_kcontrol, vortex)) == NULL)
		return -ENOMEM;
	if ((err = snd_ctl_add(vortex->card, kcontrol)) < 0)
		return err;

	return 0;
}

static int vortex_eq_free(vortex_t * vortex)
{
	/*
	   //FIXME: segfault because vortex->eqctrl[i] == 4
	   int i;
	   for (i=0; i<10; i++) {
	   if (vortex->eqctrl[i])
	   snd_ctl_remove(vortex->card, vortex->eqctrl[i]);
	   }
	 */
	vortex_Eqlzr_shutdown(vortex);
	return 0;
}

/* End */