rme32.c

linux 内核源代码

		break;
	case RME32_INPUT_XLR:
		snd_iprintf(buffer, "  input: XLR");
		break;
	}
	if (snd_rme32_capture_getrate(rme32, &n) < 0) {
		snd_iprintf(buffer, "\n  sample rate: no valid signal\n");
	} else {
		if (n) {
			snd_iprintf(buffer, " (8 channels)\n");
		} else {
			snd_iprintf(buffer, " (2 channels)\n");
		}
		snd_iprintf(buffer, "  sample rate: %d Hz\n",
			    snd_rme32_capture_getrate(rme32, &n));
	}

	snd_iprintf(buffer, "\nOutput settings\n");
	if (rme32->wcreg & RME32_WCR_SEL) {
		snd_iprintf(buffer, "  output signal: normal playback");
	} else {
		snd_iprintf(buffer, "  output signal: same as input");
	}
	if (rme32->wcreg & RME32_WCR_MUTE) {
		snd_iprintf(buffer, " (muted)\n");
	} else {
		snd_iprintf(buffer, "\n");
	}

	/* master output frequency */
	if (!
	    ((!(rme32->wcreg & RME32_WCR_FREQ_0))
	     && (!(rme32->wcreg & RME32_WCR_FREQ_1)))) {
		snd_iprintf(buffer, "  sample rate: %d Hz\n",
			    snd_rme32_playback_getrate(rme32));
	}
	if (rme32->rcreg & RME32_RCR_KMODE) {
		snd_iprintf(buffer, "  sample clock source: AutoSync\n");
	} else {
		snd_iprintf(buffer, "  sample clock source: Internal\n");
	}
	if (rme32->wcreg & RME32_WCR_PRO) {
		snd_iprintf(buffer, "  format: AES/EBU (professional)\n");
	} else {
		snd_iprintf(buffer, "  format: IEC958 (consumer)\n");
	}
	if (rme32->wcreg & RME32_WCR_EMP) {
		snd_iprintf(buffer, "  emphasis: on\n");
	} else {
		snd_iprintf(buffer, "  emphasis: off\n");
	}
}

static void __devinit snd_rme32_proc_init(struct rme32 * rme32)
{
	struct snd_info_entry *entry;

	if (! snd_card_proc_new(rme32->card, "rme32", &entry))
		snd_info_set_text_ops(entry, rme32, snd_rme32_proc_read);
}

/*
 * control interface
 */

#define snd_rme32_info_loopback_control		snd_ctl_boolean_mono_info

static int
snd_rme32_get_loopback_control(struct snd_kcontrol *kcontrol,
			       struct snd_ctl_elem_value *ucontrol)
{
	struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);

	spin_lock_irq(&rme32->lock);
	ucontrol->value.integer.value[0] =
	    rme32->wcreg & RME32_WCR_SEL ? 0 : 1;
	spin_unlock_irq(&rme32->lock);
	return 0;
}
static int
snd_rme32_put_loopback_control(struct snd_kcontrol *kcontrol,
			       struct snd_ctl_elem_value *ucontrol)
{
	struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
	unsigned int val;
	int change;

	val = ucontrol->value.integer.value[0] ? 0 : RME32_WCR_SEL;
	spin_lock_irq(&rme32->lock);
	val = (rme32->wcreg & ~RME32_WCR_SEL) | val;
	change = val != rme32->wcreg;
	if (ucontrol->value.integer.value[0])
		val &= ~RME32_WCR_MUTE;
	else
		val |= RME32_WCR_MUTE;
	rme32->wcreg = val;
	writel(val, rme32->iobase + RME32_IO_CONTROL_REGISTER);
	spin_unlock_irq(&rme32->lock);
	return change;
}

static int
snd_rme32_info_inputtype_control(struct snd_kcontrol *kcontrol,
				 struct snd_ctl_elem_info *uinfo)
{
	struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
	static char *texts[4] = { "Optical", "Coaxial", "Internal", "XLR" };

	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->count = 1;
	switch (rme32->pci->device) {
	case PCI_DEVICE_ID_RME_DIGI32:
	case PCI_DEVICE_ID_RME_DIGI32_8:
		uinfo->value.enumerated.items = 3;
		break;
	case PCI_DEVICE_ID_RME_DIGI32_PRO:
		uinfo->value.enumerated.items = 4;
		break;
	default:
		snd_BUG();
		break;
	}
	if (uinfo->value.enumerated.item >
	    uinfo->value.enumerated.items - 1) {
		uinfo->value.enumerated.item =
		    uinfo->value.enumerated.items - 1;
	}
	strcpy(uinfo->value.enumerated.name,
	       texts[uinfo->value.enumerated.item]);
	return 0;
}
static int
snd_rme32_get_inputtype_control(struct snd_kcontrol *kcontrol,
				struct snd_ctl_elem_value *ucontrol)
{
	struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
	unsigned int items = 3;

	spin_lock_irq(&rme32->lock);
	ucontrol->value.enumerated.item[0] = snd_rme32_getinputtype(rme32);

	switch (rme32->pci->device) {
	case PCI_DEVICE_ID_RME_DIGI32:
	case PCI_DEVICE_ID_RME_DIGI32_8:
		items = 3;
		break;
	case PCI_DEVICE_ID_RME_DIGI32_PRO:
		items = 4;
		break;
	default:
		snd_BUG();
		break;
	}
	if (ucontrol->value.enumerated.item[0] >= items) {
		ucontrol->value.enumerated.item[0] = items - 1;
	}

	spin_unlock_irq(&rme32->lock);
	return 0;
}
static int
snd_rme32_put_inputtype_control(struct snd_kcontrol *kcontrol,
				struct snd_ctl_elem_value *ucontrol)
{
	struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
	unsigned int val;
	int change, items = 3;

	switch (rme32->pci->device) {
	case PCI_DEVICE_ID_RME_DIGI32:
	case PCI_DEVICE_ID_RME_DIGI32_8:
		items = 3;
		break;
	case PCI_DEVICE_ID_RME_DIGI32_PRO:
		items = 4;
		break;
	default:
		snd_BUG();
		break;
	}
	val = ucontrol->value.enumerated.item[0] % items;

	spin_lock_irq(&rme32->lock);
	change = val != (unsigned int)snd_rme32_getinputtype(rme32);
	snd_rme32_setinputtype(rme32, val);
	spin_unlock_irq(&rme32->lock);
	return change;
}

static int
snd_rme32_info_clockmode_control(struct snd_kcontrol *kcontrol,
				 struct snd_ctl_elem_info *uinfo)
{
	static char *texts[4] = { "AutoSync", 
				  "Internal 32.0kHz", 
				  "Internal 44.1kHz", 
				  "Internal 48.0kHz" };

	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->count = 1;
	uinfo->value.enumerated.items = 4;
	if (uinfo->value.enumerated.item > 3) {
		uinfo->value.enumerated.item = 3;
	}
	strcpy(uinfo->value.enumerated.name,
	       texts[uinfo->value.enumerated.item]);
	return 0;
}
static int
snd_rme32_get_clockmode_control(struct snd_kcontrol *kcontrol,
				struct snd_ctl_elem_value *ucontrol)
{
	struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);

	spin_lock_irq(&rme32->lock);
	ucontrol->value.enumerated.item[0] = snd_rme32_getclockmode(rme32);
	spin_unlock_irq(&rme32->lock);
	return 0;
}
static int
snd_rme32_put_clockmode_control(struct snd_kcontrol *kcontrol,
				struct snd_ctl_elem_value *ucontrol)
{
	struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
	unsigned int val;
	int change;

	val = ucontrol->value.enumerated.item[0] % 3;
	spin_lock_irq(&rme32->lock);
	change = val != (unsigned int)snd_rme32_getclockmode(rme32);
	snd_rme32_setclockmode(rme32, val);
	spin_unlock_irq(&rme32->lock);
	return change;
}

static u32 snd_rme32_convert_from_aes(struct snd_aes_iec958 * aes)
{
	u32 val = 0;
	val |= (aes->status[0] & IEC958_AES0_PROFESSIONAL) ? RME32_WCR_PRO : 0;
	if (val & RME32_WCR_PRO)
		val |= (aes->status[0] & IEC958_AES0_PRO_EMPHASIS_5015) ? RME32_WCR_EMP : 0;
	else
		val |= (aes->status[0] & IEC958_AES0_CON_EMPHASIS_5015) ? RME32_WCR_EMP : 0;
	return val;
}

static void snd_rme32_convert_to_aes(struct snd_aes_iec958 * aes, u32 val)
{
	aes->status[0] = ((val & RME32_WCR_PRO) ? IEC958_AES0_PROFESSIONAL : 0);
	if (val & RME32_WCR_PRO)
		aes->status[0] |= (val & RME32_WCR_EMP) ? IEC958_AES0_PRO_EMPHASIS_5015 : 0;
	else
		aes->status[0] |= (val & RME32_WCR_EMP) ? IEC958_AES0_CON_EMPHASIS_5015 : 0;
}

static int snd_rme32_control_spdif_info(struct snd_kcontrol *kcontrol,
					struct snd_ctl_elem_info *uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
	uinfo->count = 1;
	return 0;
}

static int snd_rme32_control_spdif_get(struct snd_kcontrol *kcontrol,
				       struct snd_ctl_elem_value *ucontrol)
{
	struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);

	snd_rme32_convert_to_aes(&ucontrol->value.iec958,
				 rme32->wcreg_spdif);
	return 0;
}

static int snd_rme32_control_spdif_put(struct snd_kcontrol *kcontrol,
				       struct snd_ctl_elem_value *ucontrol)
{
	struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
	int change;
	u32 val;

	val = snd_rme32_convert_from_aes(&ucontrol->value.iec958);
	spin_lock_irq(&rme32->lock);
	change = val != rme32->wcreg_spdif;
	rme32->wcreg_spdif = val;
	spin_unlock_irq(&rme32->lock);
	return change;
}

static int snd_rme32_control_spdif_stream_info(struct snd_kcontrol *kcontrol,
					       struct snd_ctl_elem_info *uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
	uinfo->count = 1;
	return 0;
}

static int snd_rme32_control_spdif_stream_get(struct snd_kcontrol *kcontrol,
					      struct snd_ctl_elem_value *
					      ucontrol)
{
	struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);

	snd_rme32_convert_to_aes(&ucontrol->value.iec958,
				 rme32->wcreg_spdif_stream);
	return 0;
}

static int snd_rme32_control_spdif_stream_put(struct snd_kcontrol *kcontrol,
					      struct snd_ctl_elem_value *
					      ucontrol)
{
	struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
	int change;
	u32 val;

	val = snd_rme32_convert_from_aes(&ucontrol->value.iec958);
	spin_lock_irq(&rme32->lock);
	change = val != rme32->wcreg_spdif_stream;
	rme32->wcreg_spdif_stream = val;
	rme32->wcreg &= ~(RME32_WCR_PRO | RME32_WCR_EMP);
	rme32->wcreg |= val;
	writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
	spin_unlock_irq(&rme32->lock);
	return change;
}

static int snd_rme32_control_spdif_mask_info(struct snd_kcontrol *kcontrol,
					     struct snd_ctl_elem_info *uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
	uinfo->count = 1;
	return 0;
}

static int snd_rme32_control_spdif_mask_get(struct snd_kcontrol *kcontrol,
					    struct snd_ctl_elem_value *
					    ucontrol)
{
	ucontrol->value.iec958.status[0] = kcontrol->private_value;
	return 0;
}

static struct snd_kcontrol_new snd_rme32_controls[] = {
	{
		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
		.name =	SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
		.info =	snd_rme32_control_spdif_info,
		.get =	snd_rme32_control_spdif_get,
		.put =	snd_rme32_control_spdif_put
	},
	{
		.access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_INACTIVE,
		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
		.name =	SNDRV_CTL_NAME_IEC958("", PLAYBACK, PCM_STREAM),
		.info =	snd_rme32_control_spdif_stream_info,
		.get =	snd_rme32_control_spdif_stream_get,
		.put =	snd_rme32_control_spdif_stream_put
	},
	{
		.access = SNDRV_CTL_ELEM_ACCESS_READ,
		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
		.name =	SNDRV_CTL_NAME_IEC958("", PLAYBACK, CON_MASK),
		.info =	snd_rme32_control_spdif_mask_info,
		.get =	snd_rme32_control_spdif_mask_get,
		.private_value = IEC958_AES0_PROFESSIONAL | IEC958_AES0_CON_EMPHASIS
	},
	{
		.access = SNDRV_CTL_ELEM_ACCESS_READ,
		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
		.name =	SNDRV_CTL_NAME_IEC958("", PLAYBACK, PRO_MASK),
		.info =	snd_rme32_control_spdif_mask_info,
		.get =	snd_rme32_control_spdif_mask_get,
		.private_value = IEC958_AES0_PROFESSIONAL | IEC958_AES0_PRO_EMPHASIS
	},
	{
		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name =	"Input Connector",
		.info =	snd_rme32_info_inputtype_control,
		.get =	snd_rme32_get_inputtype_control,
		.put =	snd_rme32_put_inputtype_control
	},
	{
		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name =	"Loopback Input",
		.info =	snd_rme32_info_loopback_control,
		.get =	snd_rme32_get_loopback_control,
		.put =	snd_rme32_put_loopback_control
	},
	{
		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name =	"Sample Clock Source",
		.info =	snd_rme32_info_clockmode_control,
		.get =	snd_rme32_get_clockmode_control,
		.put =	snd_rme32_put_clockmode_control
	}
};

static int snd_rme32_create_switches(struct snd_card *card, struct rme32 * rme32)
{
	int idx, err;
	struct snd_kcontrol *kctl;

	for (idx = 0; idx < (int)ARRAY_SIZE(snd_rme32_controls); idx++) {
		if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_rme32_controls[idx], rme32))) < 0)
			return err;
		if (idx == 1)	/* IEC958 (S/PDIF) Stream */
			rme32->spdif_ctl = kctl;
	}

	return 0;
}

/*
 * Card initialisation
 */

static void snd_rme32_card_free(struct snd_card *card)
{
	snd_rme32_free(card->private_data);
}

static int __devinit
snd_rme32_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
{
	static int dev;
	struct rme32 *rme32;
	struct snd_card *card;
	int err;

	if (dev >= SNDRV_CARDS) {
		return -ENODEV;
	}
	if (!enable[dev]) {
		dev++;
		return -ENOENT;
	}

	if ((card = snd_card_new(index[dev], id[dev], THIS_MODULE,
				 sizeof(struct rme32))) == NULL)
		return -ENOMEM;
	card->private_free = snd_rme32_card_free;
	rme32 = (struct rme32 *) card->private_data;
	rme32->card = card;
	rme32->pci = pci;
	snd_card_set_dev(card, &pci->dev);
        if (fullduplex[dev])
		rme32->fullduplex_mode = 1;
	if ((err = snd_rme32_create(rme32)) < 0) {
		snd_card_free(card);
		return err;
	}

	strcpy(card->driver, "Digi32");
	switch (rme32->pci->device) {
	case PCI_DEVICE_ID_RME_DIGI32:
		strcpy(card->shortname, "RME Digi32");
		break;
	case PCI_DEVICE_ID_RME_DIGI32_8:
		strcpy(card->shortname, "RME Digi32/8");
		break;
	case PCI_DEVICE_ID_RME_DIGI32_PRO:
		strcpy(card->shortname, "RME Digi32 PRO");
		break;
	}
	sprintf(card->longname, "%s (Rev. %d) at 0x%lx, irq %d",
		card->shortname, rme32->rev, rme32->port, rme32->irq);

	if ((err = snd_card_register(card)) < 0) {
		snd_card_free(card);
		return err;
	}
	pci_set_drvdata(pci, card);
	dev++;
	return 0;
}

static void __devexit snd_rme32_remove(struct pci_dev *pci)
{
	snd_card_free(pci_get_drvdata(pci));
	pci_set_drvdata(pci, NULL);
}

static struct pci_driver driver = {
	.name =		"RME Digi32",
	.id_table =	snd_rme32_ids,
	.probe =	snd_rme32_probe,
	.remove =	__devexit_p(snd_rme32_remove),
};

static int __init alsa_card_rme32_init(void)
{
	return pci_register_driver(&driver);
}

static void __exit alsa_card_rme32_exit(void)
{
	pci_unregister_driver(&driver);
}

module_init(alsa_card_rme32_init)
module_exit(alsa_card_rme32_exit)