ice1724.c

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	} else
		runtime->hw = snd_vt1724_spdif;
	snd_pcm_set_sync(substream);
	snd_pcm_hw_constraint_msbits(runtime, 0, 32, 24);
	snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
				   VT1724_BUFFER_ALIGN);
	snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
				   VT1724_BUFFER_ALIGN);
	return 0;
}

static int snd_vt1724_playback_spdif_close(snd_pcm_substream_t * substream)
{
	ice1712_t *ice = snd_pcm_substream_chip(substream);

	if (PRO_RATE_RESET)
		snd_vt1724_set_pro_rate(ice, PRO_RATE_DEFAULT, 0);
	ice->playback_con_substream = NULL;

	return 0;
}

static int snd_vt1724_capture_spdif_open(snd_pcm_substream_t *substream)
{
	ice1712_t *ice = snd_pcm_substream_chip(substream);
	snd_pcm_runtime_t *runtime = substream->runtime;

	runtime->private_data = &vt1724_capture_spdif_reg;
	ice->capture_con_substream = substream;
	if (ice->force_rdma1) {
		runtime->hw = snd_vt1724_2ch_stereo;
		set_rate_constraints(ice, substream);
	} else
		runtime->hw = snd_vt1724_spdif;
	snd_pcm_set_sync(substream);
	snd_pcm_hw_constraint_msbits(runtime, 0, 32, 24);
	snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
				   VT1724_BUFFER_ALIGN);
	snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
				   VT1724_BUFFER_ALIGN);
	return 0;
}

static int snd_vt1724_capture_spdif_close(snd_pcm_substream_t * substream)
{
	ice1712_t *ice = snd_pcm_substream_chip(substream);

	if (PRO_RATE_RESET)
		snd_vt1724_set_pro_rate(ice, PRO_RATE_DEFAULT, 0);
	ice->capture_con_substream = NULL;

	return 0;
}

static snd_pcm_ops_t snd_vt1724_playback_spdif_ops = {
	.open =		snd_vt1724_playback_spdif_open,
	.close =	snd_vt1724_playback_spdif_close,
	.ioctl =	snd_pcm_lib_ioctl,
	.hw_params =	snd_vt1724_pcm_hw_params,
	.hw_free =	snd_vt1724_pcm_hw_free,
	.prepare =	snd_vt1724_playback_spdif_prepare,
	.trigger =	snd_vt1724_pcm_trigger,
	.pointer =	snd_vt1724_pcm_pointer,
};

static snd_pcm_ops_t snd_vt1724_capture_spdif_ops = {
	.open =		snd_vt1724_capture_spdif_open,
	.close =	snd_vt1724_capture_spdif_close,
	.ioctl =	snd_pcm_lib_ioctl,
	.hw_params =	snd_vt1724_pcm_hw_params,
	.hw_free =	snd_vt1724_pcm_hw_free,
	.prepare =	snd_vt1724_pcm_prepare,
	.trigger =	snd_vt1724_pcm_trigger,
	.pointer =	snd_vt1724_pcm_pointer,
};


static int __devinit snd_vt1724_pcm_spdif(ice1712_t * ice, int device)
{
	char *name;
	snd_pcm_t *pcm;
	int play, capt;
	int err;

	if (ice->force_pdma4 ||
	    (ice->eeprom.data[ICE_EEP2_SPDIF] & VT1724_CFG_SPDIF_OUT_INT)) {
		play = 1;
		ice->has_spdif = 1;
	} else
		play = 0;
	if (ice->force_rdma1 ||
	    (ice->eeprom.data[ICE_EEP2_SPDIF] & VT1724_CFG_SPDIF_IN)) {
		capt = 1;
		ice->has_spdif = 1;
	} else
		capt = 0;
	if (! play && ! capt)
		return 0; /* no spdif device */

	if (ice->force_pdma4 || ice->force_rdma1)
		name = "ICE1724 Secondary";
	else
		name = "IEC1724 IEC958";
	err = snd_pcm_new(ice->card, name, device, play, capt, &pcm);
	if (err < 0)
		return err;

	if (play)
		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
				&snd_vt1724_playback_spdif_ops);
	if (capt)
		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
				&snd_vt1724_capture_spdif_ops);

	pcm->private_data = ice;
	pcm->info_flags = 0;
	strcpy(pcm->name, name);

	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
					      snd_dma_pci_data(ice->pci), 64*1024, 64*1024);

	ice->pcm = pcm;

	return 0;
}


/*
 * independent surround PCMs
 */

static struct vt1724_pcm_reg vt1724_playback_dma_regs[3] = {
	{
		.addr = VT1724_MT_PDMA1_ADDR,
		.size = VT1724_MT_PDMA1_SIZE,
		.count = VT1724_MT_PDMA1_COUNT,
		.start = VT1724_PDMA1_START,
	},
	{
		.addr = VT1724_MT_PDMA2_ADDR,
		.size = VT1724_MT_PDMA2_SIZE,
		.count = VT1724_MT_PDMA2_COUNT,
		.start = VT1724_PDMA2_START,
	},
	{
		.addr = VT1724_MT_PDMA3_ADDR,
		.size = VT1724_MT_PDMA3_SIZE,
		.count = VT1724_MT_PDMA3_COUNT,
		.start = VT1724_PDMA3_START,
	},
};

static int snd_vt1724_playback_indep_prepare(snd_pcm_substream_t * substream)
{
	ice1712_t *ice = snd_pcm_substream_chip(substream);
	unsigned char val;

	spin_lock_irq(&ice->reg_lock);
	val = 3 - substream->number;
	if (inb(ICEMT1724(ice, BURST)) < val)
		outb(val, ICEMT1724(ice, BURST));
	spin_unlock_irq(&ice->reg_lock);
	return snd_vt1724_pcm_prepare(substream);
}

static int snd_vt1724_playback_indep_open(snd_pcm_substream_t *substream)
{
	ice1712_t *ice = snd_pcm_substream_chip(substream);
	snd_pcm_runtime_t *runtime = substream->runtime;

	down(&ice->open_mutex);
	/* already used by PDMA0? */
	if (ice->pcm_reserved[substream->number]) {
		up(&ice->open_mutex);
		return -EBUSY; /* FIXME: should handle blocking mode properly */
	}
	up(&ice->open_mutex);
	runtime->private_data = &vt1724_playback_dma_regs[substream->number];
	ice->playback_con_substream_ds[substream->number] = substream;
	runtime->hw = snd_vt1724_2ch_stereo;
	snd_pcm_set_sync(substream);
	snd_pcm_hw_constraint_msbits(runtime, 0, 32, 24);
	set_rate_constraints(ice, substream);
	return 0;
}

static int snd_vt1724_playback_indep_close(snd_pcm_substream_t * substream)
{
	ice1712_t *ice = snd_pcm_substream_chip(substream);

	if (PRO_RATE_RESET)
		snd_vt1724_set_pro_rate(ice, PRO_RATE_DEFAULT, 0);
	ice->playback_con_substream_ds[substream->number] = NULL;
	ice->pcm_reserved[substream->number] = NULL;

	return 0;
}

static snd_pcm_ops_t snd_vt1724_playback_indep_ops = {
	.open =		snd_vt1724_playback_indep_open,
	.close =	snd_vt1724_playback_indep_close,
	.ioctl =	snd_pcm_lib_ioctl,
	.hw_params =	snd_vt1724_pcm_hw_params,
	.hw_free =	snd_vt1724_pcm_hw_free,
	.prepare =	snd_vt1724_playback_indep_prepare,
	.trigger =	snd_vt1724_pcm_trigger,
	.pointer =	snd_vt1724_pcm_pointer,
};


static int __devinit snd_vt1724_pcm_indep(ice1712_t * ice, int device)
{
	snd_pcm_t *pcm;
	int play;
	int err;

	play = ice->num_total_dacs / 2 - 1;
	if (play <= 0)
		return 0;

	err = snd_pcm_new(ice->card, "ICE1724 Surrounds", device, play, 0, &pcm);
	if (err < 0)
		return err;

	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
			&snd_vt1724_playback_indep_ops);

	pcm->private_data = ice;
	pcm->info_flags = 0;
	strcpy(pcm->name, "ICE1724 Surround PCM");

	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
					      snd_dma_pci_data(ice->pci), 64*1024, 64*1024);

	ice->pcm_ds = pcm;

	return 0;
}


/*
 *  Mixer section
 */

static int __devinit snd_vt1724_ac97_mixer(ice1712_t * ice)
{
	int err;

	if (! (ice->eeprom.data[ICE_EEP2_ACLINK] & VT1724_CFG_PRO_I2S)) {
		ac97_bus_t *pbus;
		ac97_template_t ac97;
		static ac97_bus_ops_t ops = {
			.write = snd_vt1724_ac97_write,
			.read = snd_vt1724_ac97_read,
		};

		/* cold reset */
		outb(inb(ICEMT1724(ice, AC97_CMD)) | 0x80, ICEMT1724(ice, AC97_CMD));
		mdelay(5); /* FIXME */
		outb(inb(ICEMT1724(ice, AC97_CMD)) & ~0x80, ICEMT1724(ice, AC97_CMD));

		if ((err = snd_ac97_bus(ice->card, 0, &ops, NULL, &pbus)) < 0)
			return err;
		memset(&ac97, 0, sizeof(ac97));
		ac97.private_data = ice;
		if ((err = snd_ac97_mixer(pbus, &ac97, &ice->ac97)) < 0)
			printk(KERN_WARNING "ice1712: cannot initialize pro ac97, skipped\n");
		else
			return 0;
	}
	/* I2S mixer only */
	strcat(ice->card->mixername, "ICE1724 - multitrack");
	return 0;
}

/*
 *
 */

static inline unsigned int eeprom_triple(ice1712_t *ice, int idx)
{
	return (unsigned int)ice->eeprom.data[idx] | \
		((unsigned int)ice->eeprom.data[idx + 1] << 8) | \
		((unsigned int)ice->eeprom.data[idx + 2] << 16);
}

static void snd_vt1724_proc_read(snd_info_entry_t *entry, 
				 snd_info_buffer_t * buffer)
{
	ice1712_t *ice = entry->private_data;
	unsigned int idx;

	snd_iprintf(buffer, "%s\n\n", ice->card->longname);
	snd_iprintf(buffer, "EEPROM:\n");

	snd_iprintf(buffer, "  Subvendor        : 0x%x\n", ice->eeprom.subvendor);
	snd_iprintf(buffer, "  Size             : %i bytes\n", ice->eeprom.size);
	snd_iprintf(buffer, "  Version          : %i\n", ice->eeprom.version);
	snd_iprintf(buffer, "  System Config    : 0x%x\n", ice->eeprom.data[ICE_EEP2_SYSCONF]);
	snd_iprintf(buffer, "  ACLink           : 0x%x\n", ice->eeprom.data[ICE_EEP2_ACLINK]);
	snd_iprintf(buffer, "  I2S              : 0x%x\n", ice->eeprom.data[ICE_EEP2_I2S]);
	snd_iprintf(buffer, "  S/PDIF           : 0x%x\n", ice->eeprom.data[ICE_EEP2_SPDIF]);
	snd_iprintf(buffer, "  GPIO direction   : 0x%x\n", ice->eeprom.gpiodir);
	snd_iprintf(buffer, "  GPIO mask        : 0x%x\n", ice->eeprom.gpiomask);
	snd_iprintf(buffer, "  GPIO state       : 0x%x\n", ice->eeprom.gpiostate);
	for (idx = 0x12; idx < ice->eeprom.size; idx++)
		snd_iprintf(buffer, "  Extra #%02i        : 0x%x\n", idx, ice->eeprom.data[idx]);

	snd_iprintf(buffer, "\nRegisters:\n");

	snd_iprintf(buffer, "  PSDOUT03 : 0x%08x\n", (unsigned)inl(ICEMT1724(ice, ROUTE_PLAYBACK)));
	for (idx = 0x0; idx < 0x20 ; idx++)
		snd_iprintf(buffer, "  CCS%02x    : 0x%02x\n", idx, inb(ice->port+idx));
	for (idx = 0x0; idx < 0x30 ; idx++)
		snd_iprintf(buffer, "  MT%02x     : 0x%02x\n", idx, inb(ice->profi_port+idx));
}

static void __devinit snd_vt1724_proc_init(ice1712_t * ice)
{
	snd_info_entry_t *entry;

	if (! snd_card_proc_new(ice->card, "ice1724", &entry))
		snd_info_set_text_ops(entry, ice, 1024, snd_vt1724_proc_read);
}

/*
 *
 */

static int snd_vt1724_eeprom_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
	uinfo->count = sizeof(ice1712_eeprom_t);
	return 0;
}

static int snd_vt1724_eeprom_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
	ice1712_t *ice = snd_kcontrol_chip(kcontrol);
	
	memcpy(ucontrol->value.bytes.data, &ice->eeprom, sizeof(ice->eeprom));
	return 0;
}

static snd_kcontrol_new_t snd_vt1724_eeprom __devinitdata = {
	.iface = SNDRV_CTL_ELEM_IFACE_CARD,
	.name = "ICE1724 EEPROM",
	.access = SNDRV_CTL_ELEM_ACCESS_READ,
	.info = snd_vt1724_eeprom_info,
	.get = snd_vt1724_eeprom_get
};

/*
 */
static int snd_vt1724_spdif_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
	uinfo->count = 1;
	return 0;
}

static unsigned int encode_spdif_bits(snd_aes_iec958_t *diga)
{
	unsigned int val;

	val = diga->status[0] & 0x03; /* professional, non-audio */
	if (val & 0x01) {
		/* professional */
		if ((diga->status[0] & IEC958_AES0_PRO_EMPHASIS) == IEC958_AES0_PRO_EMPHASIS_5015)
			val |= 1U << 3;
		switch (diga->status[0] & IEC958_AES0_PRO_FS) {
		case IEC958_AES0_PRO_FS_44100:
			break;
		case IEC958_AES0_PRO_FS_32000:
			val |= 3U << 12;
			break;
		default:
			val |= 2U << 12;
			break;
		}
	} else {
		/* consumer */
		val |= diga->status[1] & 0x04; /* copyright */
		if ((diga->status[0] & IEC958_AES0_CON_EMPHASIS)== IEC958_AES0_CON_EMPHASIS_5015)
			val |= 1U << 3;
		val |= (unsigned int)(diga->status[1] & 0x3f) << 4; /* category */
		val |= (unsigned int)(diga->status[3] & IEC958_AES3_CON_FS) << 12; /* fs */
	}
	return val;
}

static void decode_spdif_bits(snd_aes_iec958_t *diga, unsigned int val)
{
	memset(diga->status, 0, sizeof(diga->status));
	diga->status[0] = val & 0x03; /* professional, non-audio */
	if (val & 0x01) {
		/* professional */
		if (val & (1U << 3))
			diga->status[0] |= IEC958_AES0_PRO_EMPHASIS_5015;
		switch ((val >> 12) & 0x7) {
		case 0:
			break;
		case 2:
			diga->status[0] |= IEC958_AES0_PRO_FS_32000;
			break;
		default:
			diga->status[0] |= IEC958_AES0_PRO_FS_48000;
			break;
		}
	} else {
		/* consumer */
		diga->status[0] |= val & (1U << 2); /* copyright */
		if (val & (1U << 3))
			diga->status[0] |= IEC958_AES0_CON_EMPHASIS_5015;
		diga->status[1] |= (val >> 4) & 0x3f; /* category */
		diga->status[3] |= (val >> 12) & 0x07; /* fs */
	}
}

static int snd_vt1724_spdif_default_get(snd_kcontrol_t * kcontrol,
					snd_ctl_elem_value_t * ucontrol)
{
	ice1712_t *ice = snd_kcontrol_chip(kcontrol);
	unsigned int val;
	val = inw(ICEMT1724(ice, SPDIF_CTRL));
	decode_spdif_bits(&ucontrol->value.iec958, val);
	return 0;
}

static int snd_vt1724_spdif_default_put(snd_kcontrol_t * kcontrol,
					 snd_ctl_elem_value_t * ucontrol)
{
	ice1712_t *ice = snd_kcontrol_chip(kcontrol);
	unsigned int val, old;

	val = encode_spdif_bits(&ucontrol->value.iec958);
	spin_lock_irq(&ice->reg_lock);
	old = inw(ICEMT1724(ice, SPDIF_CTRL));
	if (val != old)
		update_spdif_bits(ice, val);
	spin_unlock_irq(&ice->reg_lock);
	return (val != old);
}

static snd_kcontrol_new_t snd_vt1724_spdif_default __devinitdata =
{
	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
	.name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
	.info =		snd_vt1724_spdif_info,
	.get =		snd_vt1724_spdif_default_get,
	.put =		snd_vt1724_spdif_default_put
};

static int snd_vt1724_spdif_maskc_get(snd_kcontrol_t * kcontrol,
				       snd_ctl_elem_value_t * ucontrol)
{
	ucontrol->value.iec958.status[0] = IEC958_AES0_NONAUDIO |
						     IEC958_AES0_PROFESSIONAL |
						     IEC958_AES0_CON_NOT_COPYRIGHT |
						     IEC958_AES0_CON_EMPHASIS;
	ucontrol->value.iec958.status[1] = IEC958_AES1_CON_ORIGINAL |
						     IEC958_AES1_CON_CATEGORY;
	ucontrol->value.iec958.status[3] = IEC958_AES3_CON_FS;