Commit 1ff97cb9 authored by Pavel Hofman's avatar Pavel Hofman Committed by Takashi Iwai
Browse files

ALSA: ice1724 - Support for multiple external clock types 



* Support for customization of the external clock names
* Adding hooks to playback_pro_open and capture_pro_open, allowing e.g.
  limiting available stream rates to a single value when the external
  clock rate is detected

Signed-off-by: default avatarPavel Hofman <pavel.hofman@ivitera.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 6796d5a0

sound/pci/ice1712/ice1712.h

+5 −2
Original line number Diff line number Diff line
@@ -379,8 +379,11 @@ struct snd_ice1712 { 
	unsigned int (*get_rate)(struct snd_ice1712 *ice);

	void (*set_rate)(struct snd_ice1712 *ice, unsigned int rate);

	unsigned char (*set_mclk)(struct snd_ice1712 *ice, unsigned int rate);

	void (*set_spdif_clock)(struct snd_ice1712 *ice);



	int (*set_spdif_clock)(struct snd_ice1712 *ice, int type);

	int (*get_spdif_master_type)(struct snd_ice1712 *ice);

	char **ext_clock_names;

	int ext_clock_count;

	void (*pro_open)(struct snd_ice1712 *, struct snd_pcm_substream *);

#ifdef CONFIG_PM

	int (*pm_suspend)(struct snd_ice1712 *);

	int (*pm_resume)(struct snd_ice1712 *);

sound/pci/ice1712/ice1724.c

+45 −13
Original line number Diff line number Diff line
@@ -104,6 +104,8 @@ static int PRO_RATE_LOCKED; 
static int PRO_RATE_RESET = 1;

static unsigned int PRO_RATE_DEFAULT = 44100;



static char *ext_clock_names[1] = { "IEC958 In" };



/*

 *  Basic I/O

 */
@@ -1042,6 +1044,8 @@ static int snd_vt1724_playback_pro_open(struct snd_pcm_substream *substream) 
				   VT1724_BUFFER_ALIGN);

	snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,

				   VT1724_BUFFER_ALIGN);

	if (ice->pro_open)

		ice->pro_open(ice, substream);

	return 0;

}
@@ -1060,6 +1064,8 @@ static int snd_vt1724_capture_pro_open(struct snd_pcm_substream *substream) 
				   VT1724_BUFFER_ALIGN);

	snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,

				   VT1724_BUFFER_ALIGN);

	if (ice->pro_open)

		ice->pro_open(ice, substream);

	return 0;

}
@@ -1813,15 +1819,21 @@ static int snd_vt1724_pro_internal_clock_info(struct snd_kcontrol *kcontrol, 
					      struct snd_ctl_elem_info *uinfo)

{

	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);



	int hw_rates_count = ice->hw_rates->count;

	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;

	uinfo->count = 1;

	uinfo->value.enumerated.items = ice->hw_rates->count + 1;



	uinfo->value.enumerated.items = hw_rates_count + ice->ext_clock_count;

	/* upper limit - keep at top */

	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)

		uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;

	if (uinfo->value.enumerated.item == uinfo->value.enumerated.items - 1)

		strcpy(uinfo->value.enumerated.name, "IEC958 Input");

	if (uinfo->value.enumerated.item >= hw_rates_count)

		/* ext_clock items */

		strcpy(uinfo->value.enumerated.name,

				ice->ext_clock_names[

				uinfo->value.enumerated.item - hw_rates_count]);

	else

		/* int clock items */

		sprintf(uinfo->value.enumerated.name, "%d",

			ice->hw_rates->list[uinfo->value.enumerated.item]);

	return 0;
@@ -1835,7 +1847,8 @@ static int snd_vt1724_pro_internal_clock_get(struct snd_kcontrol *kcontrol, 


	spin_lock_irq(&ice->reg_lock);

	if (ice->is_spdif_master(ice)) {

		ucontrol->value.enumerated.item[0] = ice->hw_rates->count;

		ucontrol->value.enumerated.item[0] = ice->hw_rates->count +

			ice->get_spdif_master_type(ice);

	} else {

		rate = ice->get_rate(ice);

		ucontrol->value.enumerated.item[0] = 0;
@@ -1850,8 +1863,14 @@ static int snd_vt1724_pro_internal_clock_get(struct snd_kcontrol *kcontrol, 
	return 0;

}



static int stdclock_get_spdif_master_type(struct snd_ice1712 *ice)

{

	/* standard external clock - only single type - SPDIF IN */

	return 0;

}



/* setting clock to external - SPDIF */

static void stdclock_set_spdif_clock(struct snd_ice1712 *ice)

static int stdclock_set_spdif_clock(struct snd_ice1712 *ice, int type)

{

	unsigned char oval;

	unsigned char i2s_oval;
@@ -1860,27 +1879,30 @@ static void stdclock_set_spdif_clock(struct snd_ice1712 *ice) 
	/* setting 256fs */

	i2s_oval = inb(ICEMT1724(ice, I2S_FORMAT));

	outb(i2s_oval & ~VT1724_MT_I2S_MCLK_128X, ICEMT1724(ice, I2S_FORMAT));

	return 0;

}





static int snd_vt1724_pro_internal_clock_put(struct snd_kcontrol *kcontrol,

					     struct snd_ctl_elem_value *ucontrol)

{

	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);

	unsigned int old_rate, new_rate;

	unsigned int item = ucontrol->value.enumerated.item[0];

	unsigned int spdif = ice->hw_rates->count;

	unsigned int first_ext_clock = ice->hw_rates->count;



	if (item > spdif)

	if (item >  first_ext_clock + ice->ext_clock_count - 1)

		return -EINVAL;



	/* if rate = 0 => external clock */

	spin_lock_irq(&ice->reg_lock);

	if (ice->is_spdif_master(ice))

		old_rate = 0;

	else

		old_rate = ice->get_rate(ice);

	if (item == spdif) {

		/* switching to external clock via SPDIF */

		ice->set_spdif_clock(ice);

	if (item >= first_ext_clock) {

		/* switching to external clock */

		ice->set_spdif_clock(ice, item - first_ext_clock);

		new_rate = 0;

	} else {

		/* internal on-card clock */
@@ -1892,7 +1914,7 @@ static int snd_vt1724_pro_internal_clock_put(struct snd_kcontrol *kcontrol, 
	}

	spin_unlock_irq(&ice->reg_lock);



	/* the first reset to the SPDIF master mode? */

	/* the first switch to the ext. clock mode? */

	if (old_rate != new_rate && !new_rate) {

		/* notify akm chips as well */

		unsigned int i;
@@ -2550,6 +2572,9 @@ static int __devinit snd_vt1724_probe(struct pci_dev *pci, 
		return err;

	}



	/* field init before calling chip_init */

	ice->ext_clock_count = 0;



	for (tbl = card_tables; *tbl; tbl++) {

		for (c = *tbl; c->subvendor; c++) {

			if (c->subvendor == ice->eeprom.subvendor) {
@@ -2588,6 +2613,13 @@ __found: 
		ice->set_mclk = stdclock_set_mclk;

	if (!ice->set_spdif_clock)

		ice->set_spdif_clock = stdclock_set_spdif_clock;

	if (!ice->get_spdif_master_type)

		ice->get_spdif_master_type = stdclock_get_spdif_master_type;

	if (!ice->ext_clock_names)

		ice->ext_clock_names = ext_clock_names;

	if (!ice->ext_clock_count)

		ice->ext_clock_count = ARRAY_SIZE(ext_clock_names);



	if (!ice->hw_rates)

		set_std_hw_rates(ice);
@@ -2747,7 +2779,7 @@ static int snd_vt1724_resume(struct pci_dev *pci) 


	if (ice->pm_saved_is_spdif_master) {

		/* switching to external clock via SPDIF */

		ice->set_spdif_clock(ice);

		ice->set_spdif_clock(ice, 0);

	} else {

		/* internal on-card clock */

		snd_vt1724_set_pro_rate(ice, ice->pro_rate_default, 1);

sound/pci/ice1712/juli.c

+2 −1
Original line number Diff line number Diff line
@@ -529,13 +529,14 @@ static inline unsigned char juli_set_mclk(struct snd_ice1712 *ice, 
}



/* setting clock to external - SPDIF */

static void juli_set_spdif_clock(struct snd_ice1712 *ice)

static int juli_set_spdif_clock(struct snd_ice1712 *ice, int type)

{

	unsigned int old;

	old = ice->gpio.get_data(ice);

	/* external clock (= 0), multiply 1x, 48kHz */

	ice->gpio.set_data(ice, (old & ~GPIO_RATE_MASK) | GPIO_MULTI_1X |

			GPIO_FREQ_48KHZ);

	return 0;

}



/* Called when ak4114 detects change in the input SPDIF stream */

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