mirror of https://gitee.com/openkylin/linux.git
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: Pavel Hofman <pavel.hofman@ivitera.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Pavel Hofman
Takashi Iwai
parent
6796d5a05f
commit
1ff97cb9dd
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@ -379,8 +379,11 @@ struct snd_ice1712 {
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unsigned int (*get_rate)(struct snd_ice1712 *ice);
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void (*set_rate)(struct snd_ice1712 *ice, unsigned int rate);
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unsigned char (*set_mclk)(struct snd_ice1712 *ice, unsigned int rate);
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void (*set_spdif_clock)(struct snd_ice1712 *ice);
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int (*set_spdif_clock)(struct snd_ice1712 *ice, int type);
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int (*get_spdif_master_type)(struct snd_ice1712 *ice);
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char **ext_clock_names;
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int ext_clock_count;
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void (*pro_open)(struct snd_ice1712 *, struct snd_pcm_substream *);
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#ifdef CONFIG_PM
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int (*pm_suspend)(struct snd_ice1712 *);
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int (*pm_resume)(struct snd_ice1712 *);
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@ -104,6 +104,8 @@ static int PRO_RATE_LOCKED;
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static int PRO_RATE_RESET = 1;
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static unsigned int PRO_RATE_DEFAULT = 44100;
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static char *ext_clock_names[1] = { "IEC958 In" };
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/*
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* Basic I/O
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*/
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@ -1042,6 +1044,8 @@ static int snd_vt1724_playback_pro_open(struct snd_pcm_substream *substream)
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VT1724_BUFFER_ALIGN);
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snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
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VT1724_BUFFER_ALIGN);
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if (ice->pro_open)
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ice->pro_open(ice, substream);
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return 0;
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}
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@ -1060,6 +1064,8 @@ static int snd_vt1724_capture_pro_open(struct snd_pcm_substream *substream)
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VT1724_BUFFER_ALIGN);
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snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
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VT1724_BUFFER_ALIGN);
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if (ice->pro_open)
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ice->pro_open(ice, substream);
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return 0;
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}
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@ -1813,15 +1819,21 @@ static int snd_vt1724_pro_internal_clock_info(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_info *uinfo)
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{
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struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
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int hw_rates_count = ice->hw_rates->count;
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uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
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uinfo->count = 1;
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uinfo->value.enumerated.items = ice->hw_rates->count + 1;
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uinfo->value.enumerated.items = hw_rates_count + ice->ext_clock_count;
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/* upper limit - keep at top */
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if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
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uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
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if (uinfo->value.enumerated.item == uinfo->value.enumerated.items - 1)
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strcpy(uinfo->value.enumerated.name, "IEC958 Input");
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if (uinfo->value.enumerated.item >= hw_rates_count)
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/* ext_clock items */
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strcpy(uinfo->value.enumerated.name,
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ice->ext_clock_names[
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uinfo->value.enumerated.item - hw_rates_count]);
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else
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/* int clock items */
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sprintf(uinfo->value.enumerated.name, "%d",
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ice->hw_rates->list[uinfo->value.enumerated.item]);
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return 0;
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@ -1835,7 +1847,8 @@ static int snd_vt1724_pro_internal_clock_get(struct snd_kcontrol *kcontrol,
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spin_lock_irq(&ice->reg_lock);
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if (ice->is_spdif_master(ice)) {
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ucontrol->value.enumerated.item[0] = ice->hw_rates->count;
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ucontrol->value.enumerated.item[0] = ice->hw_rates->count +
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ice->get_spdif_master_type(ice);
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} else {
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rate = ice->get_rate(ice);
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ucontrol->value.enumerated.item[0] = 0;
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@ -1850,8 +1863,14 @@ static int snd_vt1724_pro_internal_clock_get(struct snd_kcontrol *kcontrol,
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return 0;
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}
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static int stdclock_get_spdif_master_type(struct snd_ice1712 *ice)
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{
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/* standard external clock - only single type - SPDIF IN */
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return 0;
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}
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/* setting clock to external - SPDIF */
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static void stdclock_set_spdif_clock(struct snd_ice1712 *ice)
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static int stdclock_set_spdif_clock(struct snd_ice1712 *ice, int type)
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{
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unsigned char oval;
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unsigned char i2s_oval;
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@ -1860,27 +1879,30 @@ static void stdclock_set_spdif_clock(struct snd_ice1712 *ice)
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/* setting 256fs */
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i2s_oval = inb(ICEMT1724(ice, I2S_FORMAT));
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outb(i2s_oval & ~VT1724_MT_I2S_MCLK_128X, ICEMT1724(ice, I2S_FORMAT));
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return 0;
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}
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static int snd_vt1724_pro_internal_clock_put(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
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unsigned int old_rate, new_rate;
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unsigned int item = ucontrol->value.enumerated.item[0];
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unsigned int spdif = ice->hw_rates->count;
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unsigned int first_ext_clock = ice->hw_rates->count;
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if (item > spdif)
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if (item > first_ext_clock + ice->ext_clock_count - 1)
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return -EINVAL;
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/* if rate = 0 => external clock */
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spin_lock_irq(&ice->reg_lock);
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if (ice->is_spdif_master(ice))
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old_rate = 0;
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else
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old_rate = ice->get_rate(ice);
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if (item == spdif) {
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/* switching to external clock via SPDIF */
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ice->set_spdif_clock(ice);
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if (item >= first_ext_clock) {
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/* switching to external clock */
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ice->set_spdif_clock(ice, item - first_ext_clock);
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new_rate = 0;
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} else {
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/* internal on-card clock */
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@ -1892,7 +1914,7 @@ static int snd_vt1724_pro_internal_clock_put(struct snd_kcontrol *kcontrol,
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}
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spin_unlock_irq(&ice->reg_lock);
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/* the first reset to the SPDIF master mode? */
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/* the first switch to the ext. clock mode? */
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if (old_rate != new_rate && !new_rate) {
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/* notify akm chips as well */
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unsigned int i;
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@ -2550,6 +2572,9 @@ static int __devinit snd_vt1724_probe(struct pci_dev *pci,
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return err;
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}
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/* field init before calling chip_init */
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ice->ext_clock_count = 0;
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for (tbl = card_tables; *tbl; tbl++) {
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for (c = *tbl; c->subvendor; c++) {
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if (c->subvendor == ice->eeprom.subvendor) {
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@ -2588,6 +2613,13 @@ static int __devinit snd_vt1724_probe(struct pci_dev *pci,
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ice->set_mclk = stdclock_set_mclk;
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if (!ice->set_spdif_clock)
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ice->set_spdif_clock = stdclock_set_spdif_clock;
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if (!ice->get_spdif_master_type)
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ice->get_spdif_master_type = stdclock_get_spdif_master_type;
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if (!ice->ext_clock_names)
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ice->ext_clock_names = ext_clock_names;
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if (!ice->ext_clock_count)
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ice->ext_clock_count = ARRAY_SIZE(ext_clock_names);
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if (!ice->hw_rates)
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set_std_hw_rates(ice);
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@ -2747,7 +2779,7 @@ static int snd_vt1724_resume(struct pci_dev *pci)
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if (ice->pm_saved_is_spdif_master) {
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/* switching to external clock via SPDIF */
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ice->set_spdif_clock(ice);
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ice->set_spdif_clock(ice, 0);
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} else {
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/* internal on-card clock */
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snd_vt1724_set_pro_rate(ice, ice->pro_rate_default, 1);
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@ -529,13 +529,14 @@ static inline unsigned char juli_set_mclk(struct snd_ice1712 *ice,
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}
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/* setting clock to external - SPDIF */
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static void juli_set_spdif_clock(struct snd_ice1712 *ice)
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static int juli_set_spdif_clock(struct snd_ice1712 *ice, int type)
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{
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unsigned int old;
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old = ice->gpio.get_data(ice);
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/* external clock (= 0), multiply 1x, 48kHz */
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ice->gpio.set_data(ice, (old & ~GPIO_RATE_MASK) | GPIO_MULTI_1X |
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GPIO_FREQ_48KHZ);
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return 0;
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}
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/* Called when ak4114 detects change in the input SPDIF stream */
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