ak4117.c

linux-2.6.15.6

	uinfo->count = 1;
	return 0;
}

static int snd_ak4117_spdif_mask_get(snd_kcontrol_t * kcontrol,
				      snd_ctl_elem_value_t * ucontrol)
{
	memset(ucontrol->value.iec958.status, 0xff, AK4117_REG_RXCSB_SIZE);
	return 0;
}

static int snd_ak4117_spdif_pinfo(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = 0xffff;
	uinfo->count = 4;
	return 0;
}

static int snd_ak4117_spdif_pget(snd_kcontrol_t * kcontrol,
				 snd_ctl_elem_value_t * ucontrol)
{
	ak4117_t *chip = snd_kcontrol_chip(kcontrol);
	unsigned short tmp;

	ucontrol->value.integer.value[0] = 0xf8f2;
	ucontrol->value.integer.value[1] = 0x4e1f;
	tmp = reg_read(chip, AK4117_REG_Pc0) | (reg_read(chip, AK4117_REG_Pc1) << 8);
	ucontrol->value.integer.value[2] = tmp;
	tmp = reg_read(chip, AK4117_REG_Pd0) | (reg_read(chip, AK4117_REG_Pd1) << 8);
	ucontrol->value.integer.value[3] = tmp;
	return 0;
}

static int snd_ak4117_spdif_qinfo(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
	uinfo->count = AK4117_REG_QSUB_SIZE;
	return 0;
}

static int snd_ak4117_spdif_qget(snd_kcontrol_t * kcontrol,
				 snd_ctl_elem_value_t * ucontrol)
{
	ak4117_t *chip = snd_kcontrol_chip(kcontrol);
	unsigned i;

	for (i = 0; i < AK4117_REG_QSUB_SIZE; i++)
		ucontrol->value.bytes.data[i] = reg_read(chip, AK4117_REG_QSUB_ADDR + i);
	return 0;
}

/* Don't forget to change AK4117_CONTROLS define!!! */
static snd_kcontrol_new_t snd_ak4117_iec958_controls[] = {
{
	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
	.name =		"IEC958 Parity Errors",
	.access =	SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
	.info =		snd_ak4117_in_error_info,
	.get =		snd_ak4117_in_error_get,
	.private_value = offsetof(ak4117_t, parity_errors),
},
{
	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
	.name =		"IEC958 V-Bit Errors",
	.access =	SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
	.info =		snd_ak4117_in_error_info,
	.get =		snd_ak4117_in_error_get,
	.private_value = offsetof(ak4117_t, v_bit_errors),
},
{
	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
	.name =		"IEC958 C-CRC Errors",
	.access =	SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
	.info =		snd_ak4117_in_error_info,
	.get =		snd_ak4117_in_error_get,
	.private_value = offsetof(ak4117_t, ccrc_errors),
},
{
	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
	.name =		"IEC958 Q-CRC Errors",
	.access =	SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
	.info =		snd_ak4117_in_error_info,
	.get =		snd_ak4117_in_error_get,
	.private_value = offsetof(ak4117_t, qcrc_errors),
},
{
	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
	.name =		"IEC958 External Rate",
	.access =	SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
	.info =		snd_ak4117_rate_info,
	.get =		snd_ak4117_rate_get,
},
{
	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
	.name =		SNDRV_CTL_NAME_IEC958("",CAPTURE,MASK),
	.access =	SNDRV_CTL_ELEM_ACCESS_READ,
	.info =		snd_ak4117_spdif_mask_info,
	.get =		snd_ak4117_spdif_mask_get,
},
{
	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
	.name =		SNDRV_CTL_NAME_IEC958("",CAPTURE,DEFAULT),
	.access =	SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
	.info =		snd_ak4117_spdif_info,
	.get =		snd_ak4117_spdif_get,
},
{
	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
	.name =		"IEC958 Preample Capture Default",
	.access =	SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
	.info =		snd_ak4117_spdif_pinfo,
	.get =		snd_ak4117_spdif_pget,
},
{
	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
	.name =		"IEC958 Q-subcode Capture Default",
	.access =	SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
	.info =		snd_ak4117_spdif_qinfo,
	.get =		snd_ak4117_spdif_qget,
},
{
	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
	.name =		"IEC958 Audio",
	.access =	SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
	.info =		snd_ak4117_in_bit_info,
	.get =		snd_ak4117_in_bit_get,
	.private_value = (1<<31) | (3<<8) | AK4117_REG_RCS0,
},
{
	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
	.name =		"IEC958 Non-PCM Bitstream",
	.access =	SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
	.info =		snd_ak4117_in_bit_info,
	.get =		snd_ak4117_in_bit_get,
	.private_value = (5<<8) | AK4117_REG_RCS1,
},
{
	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
	.name =		"IEC958 DTS Bitstream",
	.access =	SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
	.info =		snd_ak4117_in_bit_info,
	.get =		snd_ak4117_in_bit_get,
	.private_value = (6<<8) | AK4117_REG_RCS1,
},
{
	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
	.name =		"AK4117 Input Select",
	.access =	SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE,
	.info =		snd_ak4117_rx_info,
	.get =		snd_ak4117_rx_get,
	.put =		snd_ak4117_rx_put,
}
};

int snd_ak4117_build(ak4117_t *ak4117, snd_pcm_substream_t *cap_substream)
{
	snd_kcontrol_t *kctl;
	unsigned int idx;
	int err;

	snd_assert(cap_substream, return -EINVAL);
	ak4117->substream = cap_substream;
	for (idx = 0; idx < AK4117_CONTROLS; idx++) {
		kctl = snd_ctl_new1(&snd_ak4117_iec958_controls[idx], ak4117);
		if (kctl == NULL)
			return -ENOMEM;
		kctl->id.device = cap_substream->pcm->device;
		kctl->id.subdevice = cap_substream->number;
		err = snd_ctl_add(ak4117->card, kctl);
		if (err < 0)
			return err;
		ak4117->kctls[idx] = kctl;
	}
	return 0;
}

int snd_ak4117_external_rate(ak4117_t *ak4117)
{
	unsigned char rcs1;

	rcs1 = reg_read(ak4117, AK4117_REG_RCS1);
	return external_rate(rcs1);
}

int snd_ak4117_check_rate_and_errors(ak4117_t *ak4117, unsigned int flags)
{
	snd_pcm_runtime_t *runtime = ak4117->substream ? ak4117->substream->runtime : NULL;
	unsigned long _flags;
	int res = 0;
	unsigned char rcs0, rcs1, rcs2;
	unsigned char c0, c1;

	rcs1 = reg_read(ak4117, AK4117_REG_RCS1);
	if (flags & AK4117_CHECK_NO_STAT)
		goto __rate;
	rcs0 = reg_read(ak4117, AK4117_REG_RCS0);
	rcs2 = reg_read(ak4117, AK4117_REG_RCS2);
	// printk(KERN_DEBUG "AK IRQ: rcs0 = 0x%x, rcs1 = 0x%x, rcs2 = 0x%x\n", rcs0, rcs1, rcs2);
	spin_lock_irqsave(&ak4117->lock, _flags);
	if (rcs0 & AK4117_PAR)
		ak4117->parity_errors++;
	if (rcs0 & AK4117_V)
		ak4117->v_bit_errors++;
	if (rcs2 & AK4117_CCRC)
		ak4117->ccrc_errors++;
	if (rcs2 & AK4117_QCRC)
		ak4117->qcrc_errors++;
	c0 = (ak4117->rcs0 & (AK4117_QINT | AK4117_CINT | AK4117_STC | AK4117_AUDION | AK4117_AUTO | AK4117_UNLCK)) ^
                     (rcs0 & (AK4117_QINT | AK4117_CINT | AK4117_STC | AK4117_AUDION | AK4117_AUTO | AK4117_UNLCK));
	c1 = (ak4117->rcs1 & (AK4117_DTSCD | AK4117_NPCM | AK4117_PEM | 0x0f)) ^
	             (rcs1 & (AK4117_DTSCD | AK4117_NPCM | AK4117_PEM | 0x0f));
	ak4117->rcs0 = rcs0 & ~(AK4117_QINT | AK4117_CINT | AK4117_STC);
	ak4117->rcs1 = rcs1;
	ak4117->rcs2 = rcs2;
	spin_unlock_irqrestore(&ak4117->lock, _flags);

	if (rcs0 & AK4117_PAR)
		snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[0]->id);
	if (rcs0 & AK4117_V)
		snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[1]->id);
	if (rcs2 & AK4117_CCRC)
		snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[2]->id);
	if (rcs2 & AK4117_QCRC)
		snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[3]->id);

	/* rate change */
	if (c1 & 0x0f)
		snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[4]->id);

	if ((c1 & AK4117_PEM) | (c0 & AK4117_CINT))
		snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[6]->id);
	if (c0 & AK4117_QINT)
		snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[8]->id);

	if (c0 & AK4117_AUDION)
		snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[9]->id);
	if (c1 & AK4117_NPCM)
		snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[10]->id);
	if (c1 & AK4117_DTSCD)
		snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[11]->id);
		
	if (ak4117->change_callback && (c0 | c1) != 0)
		ak4117->change_callback(ak4117, c0, c1);

      __rate:
	/* compare rate */
	res = external_rate(rcs1);
	if (!(flags & AK4117_CHECK_NO_RATE) && runtime && runtime->rate != res) {
		snd_pcm_stream_lock_irqsave(ak4117->substream, _flags);
		if (snd_pcm_running(ak4117->substream)) {
			// printk(KERN_DEBUG "rate changed (%i <- %i)\n", runtime->rate, res);
			snd_pcm_stop(ak4117->substream, SNDRV_PCM_STATE_DRAINING);
			wake_up(&runtime->sleep);
			res = 1;
		}
		snd_pcm_stream_unlock_irqrestore(ak4117->substream, _flags);
	}
	return res;
}

static void snd_ak4117_timer(unsigned long data)
{
	ak4117_t *chip = (ak4117_t *)data;

	if (chip->init)
		return;
	snd_ak4117_check_rate_and_errors(chip, 0);
	chip->timer.expires = 1 + jiffies;
	add_timer(&chip->timer);
}

EXPORT_SYMBOL(snd_ak4117_create);
EXPORT_SYMBOL(snd_ak4117_reg_write);
EXPORT_SYMBOL(snd_ak4117_reinit);
EXPORT_SYMBOL(snd_ak4117_build);
EXPORT_SYMBOL(snd_ak4117_external_rate);
EXPORT_SYMBOL(snd_ak4117_check_rate_and_errors);