| // SPDX-License-Identifier: GPL-2.0-or-later | 
 | /* | 
 |  *   USB Audio Driver for ALSA | 
 |  * | 
 |  *   Quirks and vendor-specific extensions for mixer interfaces | 
 |  * | 
 |  *   Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de> | 
 |  * | 
 |  *   Many codes borrowed from audio.c by | 
 |  *	    Alan Cox (alan@lxorguk.ukuu.org.uk) | 
 |  *	    Thomas Sailer (sailer@ife.ee.ethz.ch) | 
 |  * | 
 |  *   Audio Advantage Micro II support added by: | 
 |  *	    Przemek Rudy (prudy1@o2.pl) | 
 |  */ | 
 |  | 
 | #include <linux/bitfield.h> | 
 | #include <linux/hid.h> | 
 | #include <linux/init.h> | 
 | #include <linux/input.h> | 
 | #include <linux/math64.h> | 
 | #include <linux/slab.h> | 
 | #include <linux/usb.h> | 
 | #include <linux/usb/audio.h> | 
 |  | 
 | #include <sound/asoundef.h> | 
 | #include <sound/core.h> | 
 | #include <sound/control.h> | 
 | #include <sound/hda_verbs.h> | 
 | #include <sound/hwdep.h> | 
 | #include <sound/info.h> | 
 | #include <sound/tlv.h> | 
 |  | 
 | #include "usbaudio.h" | 
 | #include "mixer.h" | 
 | #include "mixer_quirks.h" | 
 | #include "mixer_scarlett.h" | 
 | #include "mixer_scarlett2.h" | 
 | #include "mixer_us16x08.h" | 
 | #include "mixer_s1810c.h" | 
 | #include "helper.h" | 
 | #include "fcp.h" | 
 |  | 
 | struct std_mono_table { | 
 | 	unsigned int unitid, control, cmask; | 
 | 	int val_type; | 
 | 	const char *name; | 
 | 	snd_kcontrol_tlv_rw_t *tlv_callback; | 
 | }; | 
 |  | 
 | /* This function allows for the creation of standard UAC controls. | 
 |  * See the quirks for M-Audio FTUs or Ebox-44. | 
 |  * If you don't want to set a TLV callback pass NULL. | 
 |  * | 
 |  * Since there doesn't seem to be a devices that needs a multichannel | 
 |  * version, we keep it mono for simplicity. | 
 |  */ | 
 | static int snd_create_std_mono_ctl_offset(struct usb_mixer_interface *mixer, | 
 | 					  unsigned int unitid, | 
 | 					  unsigned int control, | 
 | 					  unsigned int cmask, | 
 | 					  int val_type, | 
 | 					  unsigned int idx_off, | 
 | 					  const char *name, | 
 | 					  snd_kcontrol_tlv_rw_t *tlv_callback) | 
 | { | 
 | 	struct usb_mixer_elem_info *cval; | 
 | 	struct snd_kcontrol *kctl; | 
 |  | 
 | 	cval = kzalloc(sizeof(*cval), GFP_KERNEL); | 
 | 	if (!cval) | 
 | 		return -ENOMEM; | 
 |  | 
 | 	snd_usb_mixer_elem_init_std(&cval->head, mixer, unitid); | 
 | 	cval->val_type = val_type; | 
 | 	cval->channels = 1; | 
 | 	cval->control = control; | 
 | 	cval->cmask = cmask; | 
 | 	cval->idx_off = idx_off; | 
 |  | 
 | 	/* get_min_max() is called only for integer volumes later, | 
 | 	 * so provide a short-cut for booleans | 
 | 	 */ | 
 | 	cval->min = 0; | 
 | 	cval->max = 1; | 
 | 	cval->res = 0; | 
 | 	cval->dBmin = 0; | 
 | 	cval->dBmax = 0; | 
 |  | 
 | 	/* Create control */ | 
 | 	kctl = snd_ctl_new1(snd_usb_feature_unit_ctl, cval); | 
 | 	if (!kctl) { | 
 | 		kfree(cval); | 
 | 		return -ENOMEM; | 
 | 	} | 
 |  | 
 | 	/* Set name */ | 
 | 	snprintf(kctl->id.name, sizeof(kctl->id.name), name); | 
 | 	kctl->private_free = snd_usb_mixer_elem_free; | 
 |  | 
 | 	/* set TLV */ | 
 | 	if (tlv_callback) { | 
 | 		kctl->tlv.c = tlv_callback; | 
 | 		kctl->vd[0].access |= | 
 | 			SNDRV_CTL_ELEM_ACCESS_TLV_READ | | 
 | 			SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; | 
 | 	} | 
 | 	/* Add control to mixer */ | 
 | 	return snd_usb_mixer_add_control(&cval->head, kctl); | 
 | } | 
 |  | 
 | static int snd_create_std_mono_ctl(struct usb_mixer_interface *mixer, | 
 | 				   unsigned int unitid, | 
 | 				   unsigned int control, | 
 | 				   unsigned int cmask, | 
 | 				   int val_type, | 
 | 				   const char *name, | 
 | 				   snd_kcontrol_tlv_rw_t *tlv_callback) | 
 | { | 
 | 	return snd_create_std_mono_ctl_offset(mixer, unitid, control, cmask, | 
 | 					      val_type, 0 /* Offset */, | 
 | 					      name, tlv_callback); | 
 | } | 
 |  | 
 | /* | 
 |  * Create a set of standard UAC controls from a table | 
 |  */ | 
 | static int snd_create_std_mono_table(struct usb_mixer_interface *mixer, | 
 | 				     const struct std_mono_table *t) | 
 | { | 
 | 	int err; | 
 |  | 
 | 	while (t->name) { | 
 | 		err = snd_create_std_mono_ctl(mixer, t->unitid, t->control, | 
 | 					      t->cmask, t->val_type, t->name, | 
 | 					      t->tlv_callback); | 
 | 		if (err < 0) | 
 | 			return err; | 
 | 		t++; | 
 | 	} | 
 |  | 
 | 	return 0; | 
 | } | 
 |  | 
 | static int add_single_ctl_with_resume(struct usb_mixer_interface *mixer, | 
 | 				      int id, | 
 | 				      usb_mixer_elem_resume_func_t resume, | 
 | 				      const struct snd_kcontrol_new *knew, | 
 | 				      struct usb_mixer_elem_list **listp) | 
 | { | 
 | 	struct usb_mixer_elem_list *list; | 
 | 	struct snd_kcontrol *kctl; | 
 |  | 
 | 	list = kzalloc(sizeof(*list), GFP_KERNEL); | 
 | 	if (!list) | 
 | 		return -ENOMEM; | 
 | 	if (listp) | 
 | 		*listp = list; | 
 | 	list->mixer = mixer; | 
 | 	list->id = id; | 
 | 	list->resume = resume; | 
 | 	kctl = snd_ctl_new1(knew, list); | 
 | 	if (!kctl) { | 
 | 		kfree(list); | 
 | 		return -ENOMEM; | 
 | 	} | 
 | 	kctl->private_free = snd_usb_mixer_elem_free; | 
 | 	/* don't use snd_usb_mixer_add_control() here, this is a special list element */ | 
 | 	return snd_usb_mixer_add_list(list, kctl, false); | 
 | } | 
 |  | 
 | /* | 
 |  * Sound Blaster remote control configuration | 
 |  * | 
 |  * format of remote control data: | 
 |  * Extigy:       xx 00 | 
 |  * Audigy 2 NX:  06 80 xx 00 00 00 | 
 |  * Live! 24-bit: 06 80 xx yy 22 83 | 
 |  */ | 
 | static const struct rc_config { | 
 | 	u32 usb_id; | 
 | 	u8  offset; | 
 | 	u8  length; | 
 | 	u8  packet_length; | 
 | 	u8  min_packet_length; /* minimum accepted length of the URB result */ | 
 | 	u8  mute_mixer_id; | 
 | 	u32 mute_code; | 
 | } rc_configs[] = { | 
 | 	{ USB_ID(0x041e, 0x3000), 0, 1, 2, 1,  18, 0x0013 }, /* Extigy       */ | 
 | 	{ USB_ID(0x041e, 0x3020), 2, 1, 6, 6,  18, 0x0013 }, /* Audigy 2 NX  */ | 
 | 	{ USB_ID(0x041e, 0x3040), 2, 2, 6, 6,  2,  0x6e91 }, /* Live! 24-bit */ | 
 | 	{ USB_ID(0x041e, 0x3042), 0, 1, 1, 1,  1,  0x000d }, /* Usb X-Fi S51 */ | 
 | 	{ USB_ID(0x041e, 0x30df), 0, 1, 1, 1,  1,  0x000d }, /* Usb X-Fi S51 Pro */ | 
 | 	{ USB_ID(0x041e, 0x3237), 0, 1, 1, 1,  1,  0x000d }, /* Usb X-Fi S51 Pro */ | 
 | 	{ USB_ID(0x041e, 0x3263), 0, 1, 1, 1,  1,  0x000d }, /* Usb X-Fi S51 Pro */ | 
 | 	{ USB_ID(0x041e, 0x3048), 2, 2, 6, 6,  2,  0x6e91 }, /* Toshiba SB0500 */ | 
 | }; | 
 |  | 
 | static void snd_usb_soundblaster_remote_complete(struct urb *urb) | 
 | { | 
 | 	struct usb_mixer_interface *mixer = urb->context; | 
 | 	const struct rc_config *rc = mixer->rc_cfg; | 
 | 	u32 code; | 
 |  | 
 | 	if (urb->status < 0 || urb->actual_length < rc->min_packet_length) | 
 | 		return; | 
 |  | 
 | 	code = mixer->rc_buffer[rc->offset]; | 
 | 	if (rc->length == 2) | 
 | 		code |= mixer->rc_buffer[rc->offset + 1] << 8; | 
 |  | 
 | 	/* the Mute button actually changes the mixer control */ | 
 | 	if (code == rc->mute_code) | 
 | 		snd_usb_mixer_notify_id(mixer, rc->mute_mixer_id); | 
 | 	mixer->rc_code = code; | 
 | 	wake_up(&mixer->rc_waitq); | 
 | } | 
 |  | 
 | static long snd_usb_sbrc_hwdep_read(struct snd_hwdep *hw, char __user *buf, | 
 | 				    long count, loff_t *offset) | 
 | { | 
 | 	struct usb_mixer_interface *mixer = hw->private_data; | 
 | 	int err; | 
 | 	u32 rc_code; | 
 |  | 
 | 	if (count != 1 && count != 4) | 
 | 		return -EINVAL; | 
 | 	err = wait_event_interruptible(mixer->rc_waitq, | 
 | 				       (rc_code = xchg(&mixer->rc_code, 0)) != 0); | 
 | 	if (err == 0) { | 
 | 		if (count == 1) | 
 | 			err = put_user(rc_code, buf); | 
 | 		else | 
 | 			err = put_user(rc_code, (u32 __user *)buf); | 
 | 	} | 
 | 	return err < 0 ? err : count; | 
 | } | 
 |  | 
 | static __poll_t snd_usb_sbrc_hwdep_poll(struct snd_hwdep *hw, struct file *file, | 
 | 					poll_table *wait) | 
 | { | 
 | 	struct usb_mixer_interface *mixer = hw->private_data; | 
 |  | 
 | 	poll_wait(file, &mixer->rc_waitq, wait); | 
 | 	return mixer->rc_code ? EPOLLIN | EPOLLRDNORM : 0; | 
 | } | 
 |  | 
 | static int snd_usb_soundblaster_remote_init(struct usb_mixer_interface *mixer) | 
 | { | 
 | 	struct snd_hwdep *hwdep; | 
 | 	int err, len, i; | 
 |  | 
 | 	for (i = 0; i < ARRAY_SIZE(rc_configs); ++i) | 
 | 		if (rc_configs[i].usb_id == mixer->chip->usb_id) | 
 | 			break; | 
 | 	if (i >= ARRAY_SIZE(rc_configs)) | 
 | 		return 0; | 
 | 	mixer->rc_cfg = &rc_configs[i]; | 
 |  | 
 | 	len = mixer->rc_cfg->packet_length; | 
 |  | 
 | 	init_waitqueue_head(&mixer->rc_waitq); | 
 | 	err = snd_hwdep_new(mixer->chip->card, "SB remote control", 0, &hwdep); | 
 | 	if (err < 0) | 
 | 		return err; | 
 | 	snprintf(hwdep->name, sizeof(hwdep->name), | 
 | 		 "%s remote control", mixer->chip->card->shortname); | 
 | 	hwdep->iface = SNDRV_HWDEP_IFACE_SB_RC; | 
 | 	hwdep->private_data = mixer; | 
 | 	hwdep->ops.read = snd_usb_sbrc_hwdep_read; | 
 | 	hwdep->ops.poll = snd_usb_sbrc_hwdep_poll; | 
 | 	hwdep->exclusive = 1; | 
 |  | 
 | 	mixer->rc_urb = usb_alloc_urb(0, GFP_KERNEL); | 
 | 	if (!mixer->rc_urb) | 
 | 		return -ENOMEM; | 
 | 	mixer->rc_setup_packet = kmalloc(sizeof(*mixer->rc_setup_packet), GFP_KERNEL); | 
 | 	if (!mixer->rc_setup_packet) { | 
 | 		usb_free_urb(mixer->rc_urb); | 
 | 		mixer->rc_urb = NULL; | 
 | 		return -ENOMEM; | 
 | 	} | 
 | 	mixer->rc_setup_packet->bRequestType = | 
 | 		USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE; | 
 | 	mixer->rc_setup_packet->bRequest = UAC_GET_MEM; | 
 | 	mixer->rc_setup_packet->wValue = cpu_to_le16(0); | 
 | 	mixer->rc_setup_packet->wIndex = cpu_to_le16(0); | 
 | 	mixer->rc_setup_packet->wLength = cpu_to_le16(len); | 
 | 	usb_fill_control_urb(mixer->rc_urb, mixer->chip->dev, | 
 | 			     usb_rcvctrlpipe(mixer->chip->dev, 0), | 
 | 			     (u8 *)mixer->rc_setup_packet, mixer->rc_buffer, len, | 
 | 			     snd_usb_soundblaster_remote_complete, mixer); | 
 | 	return 0; | 
 | } | 
 |  | 
 | #define snd_audigy2nx_led_info		snd_ctl_boolean_mono_info | 
 |  | 
 | static int snd_audigy2nx_led_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) | 
 | { | 
 | 	ucontrol->value.integer.value[0] = kcontrol->private_value >> 8; | 
 | 	return 0; | 
 | } | 
 |  | 
 | static int snd_audigy2nx_led_update(struct usb_mixer_interface *mixer, | 
 | 				    int value, int index) | 
 | { | 
 | 	struct snd_usb_audio *chip = mixer->chip; | 
 | 	int err; | 
 |  | 
 | 	err = snd_usb_lock_shutdown(chip); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	if (chip->usb_id == USB_ID(0x041e, 0x3042)) | 
 | 		err = snd_usb_ctl_msg(chip->dev, | 
 | 				      usb_sndctrlpipe(chip->dev, 0), 0x24, | 
 | 				      USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER, | 
 | 				      !value, 0, NULL, 0); | 
 | 	/* USB X-Fi S51 Pro */ | 
 | 	if (chip->usb_id == USB_ID(0x041e, 0x30df)) | 
 | 		err = snd_usb_ctl_msg(chip->dev, | 
 | 				      usb_sndctrlpipe(chip->dev, 0), 0x24, | 
 | 				      USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER, | 
 | 				      !value, 0, NULL, 0); | 
 | 	else | 
 | 		err = snd_usb_ctl_msg(chip->dev, | 
 | 				      usb_sndctrlpipe(chip->dev, 0), 0x24, | 
 | 				      USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER, | 
 | 				      value, index + 2, NULL, 0); | 
 | 	snd_usb_unlock_shutdown(chip); | 
 | 	return err; | 
 | } | 
 |  | 
 | static int snd_audigy2nx_led_put(struct snd_kcontrol *kcontrol, | 
 | 				 struct snd_ctl_elem_value *ucontrol) | 
 | { | 
 | 	struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol); | 
 | 	struct usb_mixer_interface *mixer = list->mixer; | 
 | 	int index = kcontrol->private_value & 0xff; | 
 | 	unsigned int value = ucontrol->value.integer.value[0]; | 
 | 	int old_value = kcontrol->private_value >> 8; | 
 | 	int err; | 
 |  | 
 | 	if (value > 1) | 
 | 		return -EINVAL; | 
 | 	if (value == old_value) | 
 | 		return 0; | 
 | 	kcontrol->private_value = (value << 8) | index; | 
 | 	err = snd_audigy2nx_led_update(mixer, value, index); | 
 | 	return err < 0 ? err : 1; | 
 | } | 
 |  | 
 | static int snd_audigy2nx_led_resume(struct usb_mixer_elem_list *list) | 
 | { | 
 | 	int priv_value = list->kctl->private_value; | 
 |  | 
 | 	return snd_audigy2nx_led_update(list->mixer, priv_value >> 8, | 
 | 					priv_value & 0xff); | 
 | } | 
 |  | 
 | /* name and private_value are set dynamically */ | 
 | static const struct snd_kcontrol_new snd_audigy2nx_control = { | 
 | 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 	.info = snd_audigy2nx_led_info, | 
 | 	.get = snd_audigy2nx_led_get, | 
 | 	.put = snd_audigy2nx_led_put, | 
 | }; | 
 |  | 
 | static const char * const snd_audigy2nx_led_names[] = { | 
 | 	"CMSS LED Switch", | 
 | 	"Power LED Switch", | 
 | 	"Dolby Digital LED Switch", | 
 | }; | 
 |  | 
 | static int snd_audigy2nx_controls_create(struct usb_mixer_interface *mixer) | 
 | { | 
 | 	int i, err; | 
 |  | 
 | 	for (i = 0; i < ARRAY_SIZE(snd_audigy2nx_led_names); ++i) { | 
 | 		struct snd_kcontrol_new knew; | 
 |  | 
 | 		/* USB X-Fi S51 doesn't have a CMSS LED */ | 
 | 		if (mixer->chip->usb_id == USB_ID(0x041e, 0x3042) && i == 0) | 
 | 			continue; | 
 | 		/* USB X-Fi S51 Pro doesn't have one either */ | 
 | 		if (mixer->chip->usb_id == USB_ID(0x041e, 0x30df) && i == 0) | 
 | 			continue; | 
 | 		if (i > 1 && /* Live24ext has 2 LEDs only */ | 
 | 			(mixer->chip->usb_id == USB_ID(0x041e, 0x3040) || | 
 | 			 mixer->chip->usb_id == USB_ID(0x041e, 0x3042) || | 
 | 			 mixer->chip->usb_id == USB_ID(0x041e, 0x30df) || | 
 | 			 mixer->chip->usb_id == USB_ID(0x041e, 0x3048))) | 
 | 			break; | 
 |  | 
 | 		knew = snd_audigy2nx_control; | 
 | 		knew.name = snd_audigy2nx_led_names[i]; | 
 | 		knew.private_value = (1 << 8) | i; /* LED on as default */ | 
 | 		err = add_single_ctl_with_resume(mixer, 0, | 
 | 						 snd_audigy2nx_led_resume, | 
 | 						 &knew, NULL); | 
 | 		if (err < 0) | 
 | 			return err; | 
 | 	} | 
 | 	return 0; | 
 | } | 
 |  | 
 | static void snd_audigy2nx_proc_read(struct snd_info_entry *entry, | 
 | 				    struct snd_info_buffer *buffer) | 
 | { | 
 | 	static const struct sb_jack { | 
 | 		int unitid; | 
 | 		const char *name; | 
 | 	}  jacks_audigy2nx[] = { | 
 | 		{4,  "dig in "}, | 
 | 		{7,  "line in"}, | 
 | 		{19, "spk out"}, | 
 | 		{20, "hph out"}, | 
 | 		{-1, NULL} | 
 | 	}, jacks_live24ext[] = { | 
 | 		{4,  "line in"}, /* &1=Line, &2=Mic*/ | 
 | 		{3,  "hph out"}, /* headphones */ | 
 | 		{0,  "RC     "}, /* last command, 6 bytes see rc_config above */ | 
 | 		{-1, NULL} | 
 | 	}; | 
 | 	const struct sb_jack *jacks; | 
 | 	struct usb_mixer_interface *mixer = entry->private_data; | 
 | 	int i, err; | 
 | 	u8 buf[3]; | 
 |  | 
 | 	snd_iprintf(buffer, "%s jacks\n\n", mixer->chip->card->shortname); | 
 | 	if (mixer->chip->usb_id == USB_ID(0x041e, 0x3020)) | 
 | 		jacks = jacks_audigy2nx; | 
 | 	else if (mixer->chip->usb_id == USB_ID(0x041e, 0x3040) || | 
 | 		 mixer->chip->usb_id == USB_ID(0x041e, 0x3048)) | 
 | 		jacks = jacks_live24ext; | 
 | 	else | 
 | 		return; | 
 |  | 
 | 	for (i = 0; jacks[i].name; ++i) { | 
 | 		snd_iprintf(buffer, "%s: ", jacks[i].name); | 
 | 		err = snd_usb_lock_shutdown(mixer->chip); | 
 | 		if (err < 0) | 
 | 			return; | 
 | 		err = snd_usb_ctl_msg(mixer->chip->dev, | 
 | 				      usb_rcvctrlpipe(mixer->chip->dev, 0), | 
 | 				      UAC_GET_MEM, USB_DIR_IN | USB_TYPE_CLASS | | 
 | 				      USB_RECIP_INTERFACE, 0, | 
 | 				      jacks[i].unitid << 8, buf, 3); | 
 | 		snd_usb_unlock_shutdown(mixer->chip); | 
 | 		if (err == 3 && (buf[0] == 3 || buf[0] == 6)) | 
 | 			snd_iprintf(buffer, "%02x %02x\n", buf[1], buf[2]); | 
 | 		else | 
 | 			snd_iprintf(buffer, "?\n"); | 
 | 	} | 
 | } | 
 |  | 
 | /* EMU0204 */ | 
 | static int snd_emu0204_ch_switch_info(struct snd_kcontrol *kcontrol, | 
 | 				      struct snd_ctl_elem_info *uinfo) | 
 | { | 
 | 	static const char * const texts[2] = {"1/2", "3/4"}; | 
 |  | 
 | 	return snd_ctl_enum_info(uinfo, 1, ARRAY_SIZE(texts), texts); | 
 | } | 
 |  | 
 | static int snd_emu0204_ch_switch_get(struct snd_kcontrol *kcontrol, | 
 | 				     struct snd_ctl_elem_value *ucontrol) | 
 | { | 
 | 	ucontrol->value.enumerated.item[0] = kcontrol->private_value; | 
 | 	return 0; | 
 | } | 
 |  | 
 | static int snd_emu0204_ch_switch_update(struct usb_mixer_interface *mixer, | 
 | 					int value) | 
 | { | 
 | 	struct snd_usb_audio *chip = mixer->chip; | 
 | 	int err; | 
 | 	unsigned char buf[2]; | 
 |  | 
 | 	err = snd_usb_lock_shutdown(chip); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	buf[0] = 0x01; | 
 | 	buf[1] = value ? 0x02 : 0x01; | 
 | 	err = snd_usb_ctl_msg(chip->dev, | 
 | 			      usb_sndctrlpipe(chip->dev, 0), UAC_SET_CUR, | 
 | 			      USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, | 
 | 			      0x0400, 0x0e00, buf, 2); | 
 | 	snd_usb_unlock_shutdown(chip); | 
 | 	return err; | 
 | } | 
 |  | 
 | static int snd_emu0204_ch_switch_put(struct snd_kcontrol *kcontrol, | 
 | 				     struct snd_ctl_elem_value *ucontrol) | 
 | { | 
 | 	struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol); | 
 | 	struct usb_mixer_interface *mixer = list->mixer; | 
 | 	unsigned int value = ucontrol->value.enumerated.item[0]; | 
 | 	int err; | 
 |  | 
 | 	if (value > 1) | 
 | 		return -EINVAL; | 
 |  | 
 | 	if (value == kcontrol->private_value) | 
 | 		return 0; | 
 |  | 
 | 	kcontrol->private_value = value; | 
 | 	err = snd_emu0204_ch_switch_update(mixer, value); | 
 | 	return err < 0 ? err : 1; | 
 | } | 
 |  | 
 | static int snd_emu0204_ch_switch_resume(struct usb_mixer_elem_list *list) | 
 | { | 
 | 	return snd_emu0204_ch_switch_update(list->mixer, | 
 | 					    list->kctl->private_value); | 
 | } | 
 |  | 
 | static const struct snd_kcontrol_new snd_emu0204_control = { | 
 | 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 	.name = "Front Jack Channels", | 
 | 	.info = snd_emu0204_ch_switch_info, | 
 | 	.get = snd_emu0204_ch_switch_get, | 
 | 	.put = snd_emu0204_ch_switch_put, | 
 | 	.private_value = 0, | 
 | }; | 
 |  | 
 | static int snd_emu0204_controls_create(struct usb_mixer_interface *mixer) | 
 | { | 
 | 	return add_single_ctl_with_resume(mixer, 0, | 
 | 					  snd_emu0204_ch_switch_resume, | 
 | 					  &snd_emu0204_control, NULL); | 
 | } | 
 |  | 
 | #if IS_REACHABLE(CONFIG_INPUT) | 
 | /* | 
 |  * Sony DualSense controller (PS5) jack detection | 
 |  * | 
 |  * Since this is an UAC 1 device, it doesn't support jack detection. | 
 |  * However, the controller hid-playstation driver reports HP & MIC | 
 |  * insert events through a dedicated input device. | 
 |  */ | 
 |  | 
 | #define SND_DUALSENSE_JACK_OUT_TERM_ID 3 | 
 | #define SND_DUALSENSE_JACK_IN_TERM_ID 4 | 
 |  | 
 | struct dualsense_mixer_elem_info { | 
 | 	struct usb_mixer_elem_info info; | 
 | 	struct input_handler ih; | 
 | 	struct input_device_id id_table[2]; | 
 | 	bool connected; | 
 | }; | 
 |  | 
 | static void snd_dualsense_ih_event(struct input_handle *handle, | 
 | 				   unsigned int type, unsigned int code, | 
 | 				   int value) | 
 | { | 
 | 	struct dualsense_mixer_elem_info *mei; | 
 | 	struct usb_mixer_elem_list *me; | 
 |  | 
 | 	if (type != EV_SW) | 
 | 		return; | 
 |  | 
 | 	mei = container_of(handle->handler, struct dualsense_mixer_elem_info, ih); | 
 | 	me = &mei->info.head; | 
 |  | 
 | 	if ((me->id == SND_DUALSENSE_JACK_OUT_TERM_ID && code == SW_HEADPHONE_INSERT) || | 
 | 	    (me->id == SND_DUALSENSE_JACK_IN_TERM_ID && code == SW_MICROPHONE_INSERT)) { | 
 | 		mei->connected = !!value; | 
 | 		snd_ctl_notify(me->mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, | 
 | 			       &me->kctl->id); | 
 | 	} | 
 | } | 
 |  | 
 | static bool snd_dualsense_ih_match(struct input_handler *handler, | 
 | 				   struct input_dev *dev) | 
 | { | 
 | 	struct dualsense_mixer_elem_info *mei; | 
 | 	struct usb_device *snd_dev; | 
 | 	char *input_dev_path, *usb_dev_path; | 
 | 	size_t usb_dev_path_len; | 
 | 	bool match = false; | 
 |  | 
 | 	mei = container_of(handler, struct dualsense_mixer_elem_info, ih); | 
 | 	snd_dev = mei->info.head.mixer->chip->dev; | 
 |  | 
 | 	input_dev_path = kobject_get_path(&dev->dev.kobj, GFP_KERNEL); | 
 | 	if (!input_dev_path) { | 
 | 		dev_warn(&snd_dev->dev, "Failed to get input dev path\n"); | 
 | 		return false; | 
 | 	} | 
 |  | 
 | 	usb_dev_path = kobject_get_path(&snd_dev->dev.kobj, GFP_KERNEL); | 
 | 	if (!usb_dev_path) { | 
 | 		dev_warn(&snd_dev->dev, "Failed to get USB dev path\n"); | 
 | 		goto free_paths; | 
 | 	} | 
 |  | 
 | 	/* | 
 | 	 * Ensure the VID:PID matched input device supposedly owned by the | 
 | 	 * hid-playstation driver belongs to the actual hardware handled by | 
 | 	 * the current USB audio device, which implies input_dev_path being | 
 | 	 * a subpath of usb_dev_path. | 
 | 	 * | 
 | 	 * This verification is necessary when there is more than one identical | 
 | 	 * controller attached to the host system. | 
 | 	 */ | 
 | 	usb_dev_path_len = strlen(usb_dev_path); | 
 | 	if (usb_dev_path_len >= strlen(input_dev_path)) | 
 | 		goto free_paths; | 
 |  | 
 | 	usb_dev_path[usb_dev_path_len] = '/'; | 
 | 	match = !memcmp(input_dev_path, usb_dev_path, usb_dev_path_len + 1); | 
 |  | 
 | free_paths: | 
 | 	kfree(input_dev_path); | 
 | 	kfree(usb_dev_path); | 
 |  | 
 | 	return match; | 
 | } | 
 |  | 
 | static int snd_dualsense_ih_connect(struct input_handler *handler, | 
 | 				    struct input_dev *dev, | 
 | 				    const struct input_device_id *id) | 
 | { | 
 | 	struct input_handle *handle; | 
 | 	int err; | 
 |  | 
 | 	handle = kzalloc(sizeof(*handle), GFP_KERNEL); | 
 | 	if (!handle) | 
 | 		return -ENOMEM; | 
 |  | 
 | 	handle->dev = dev; | 
 | 	handle->handler = handler; | 
 | 	handle->name = handler->name; | 
 |  | 
 | 	err = input_register_handle(handle); | 
 | 	if (err) | 
 | 		goto err_free; | 
 |  | 
 | 	err = input_open_device(handle); | 
 | 	if (err) | 
 | 		goto err_unregister; | 
 |  | 
 | 	return 0; | 
 |  | 
 | err_unregister: | 
 | 	input_unregister_handle(handle); | 
 | err_free: | 
 | 	kfree(handle); | 
 | 	return err; | 
 | } | 
 |  | 
 | static void snd_dualsense_ih_disconnect(struct input_handle *handle) | 
 | { | 
 | 	input_close_device(handle); | 
 | 	input_unregister_handle(handle); | 
 | 	kfree(handle); | 
 | } | 
 |  | 
 | static void snd_dualsense_ih_start(struct input_handle *handle) | 
 | { | 
 | 	struct dualsense_mixer_elem_info *mei; | 
 | 	struct usb_mixer_elem_list *me; | 
 | 	int status = -1; | 
 |  | 
 | 	mei = container_of(handle->handler, struct dualsense_mixer_elem_info, ih); | 
 | 	me = &mei->info.head; | 
 |  | 
 | 	if (me->id == SND_DUALSENSE_JACK_OUT_TERM_ID && | 
 | 	    test_bit(SW_HEADPHONE_INSERT, handle->dev->swbit)) | 
 | 		status = test_bit(SW_HEADPHONE_INSERT, handle->dev->sw); | 
 | 	else if (me->id == SND_DUALSENSE_JACK_IN_TERM_ID && | 
 | 		 test_bit(SW_MICROPHONE_INSERT, handle->dev->swbit)) | 
 | 		status = test_bit(SW_MICROPHONE_INSERT, handle->dev->sw); | 
 |  | 
 | 	if (status >= 0) { | 
 | 		mei->connected = !!status; | 
 | 		snd_ctl_notify(me->mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, | 
 | 			       &me->kctl->id); | 
 | 	} | 
 | } | 
 |  | 
 | static int snd_dualsense_jack_get(struct snd_kcontrol *kctl, | 
 | 				  struct snd_ctl_elem_value *ucontrol) | 
 | { | 
 | 	struct dualsense_mixer_elem_info *mei = snd_kcontrol_chip(kctl); | 
 |  | 
 | 	ucontrol->value.integer.value[0] = mei->connected; | 
 |  | 
 | 	return 0; | 
 | } | 
 |  | 
 | static const struct snd_kcontrol_new snd_dualsense_jack_control = { | 
 | 	.iface = SNDRV_CTL_ELEM_IFACE_CARD, | 
 | 	.access = SNDRV_CTL_ELEM_ACCESS_READ, | 
 | 	.info = snd_ctl_boolean_mono_info, | 
 | 	.get = snd_dualsense_jack_get, | 
 | }; | 
 |  | 
 | static int snd_dualsense_resume_jack(struct usb_mixer_elem_list *list) | 
 | { | 
 | 	snd_ctl_notify(list->mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, | 
 | 		       &list->kctl->id); | 
 | 	return 0; | 
 | } | 
 |  | 
 | static void snd_dualsense_mixer_elem_free(struct snd_kcontrol *kctl) | 
 | { | 
 | 	struct dualsense_mixer_elem_info *mei = snd_kcontrol_chip(kctl); | 
 |  | 
 | 	if (mei->ih.event) | 
 | 		input_unregister_handler(&mei->ih); | 
 |  | 
 | 	snd_usb_mixer_elem_free(kctl); | 
 | } | 
 |  | 
 | static int snd_dualsense_jack_create(struct usb_mixer_interface *mixer, | 
 | 				     const char *name, bool is_output) | 
 | { | 
 | 	struct dualsense_mixer_elem_info *mei; | 
 | 	struct input_device_id *idev_id; | 
 | 	struct snd_kcontrol *kctl; | 
 | 	int err; | 
 |  | 
 | 	mei = kzalloc(sizeof(*mei), GFP_KERNEL); | 
 | 	if (!mei) | 
 | 		return -ENOMEM; | 
 |  | 
 | 	snd_usb_mixer_elem_init_std(&mei->info.head, mixer, | 
 | 				    is_output ? SND_DUALSENSE_JACK_OUT_TERM_ID : | 
 | 						SND_DUALSENSE_JACK_IN_TERM_ID); | 
 |  | 
 | 	mei->info.head.resume = snd_dualsense_resume_jack; | 
 | 	mei->info.val_type = USB_MIXER_BOOLEAN; | 
 | 	mei->info.channels = 1; | 
 | 	mei->info.min = 0; | 
 | 	mei->info.max = 1; | 
 |  | 
 | 	kctl = snd_ctl_new1(&snd_dualsense_jack_control, mei); | 
 | 	if (!kctl) { | 
 | 		kfree(mei); | 
 | 		return -ENOMEM; | 
 | 	} | 
 |  | 
 | 	strscpy(kctl->id.name, name, sizeof(kctl->id.name)); | 
 | 	kctl->private_free = snd_dualsense_mixer_elem_free; | 
 |  | 
 | 	err = snd_usb_mixer_add_control(&mei->info.head, kctl); | 
 | 	if (err) | 
 | 		return err; | 
 |  | 
 | 	idev_id = &mei->id_table[0]; | 
 | 	idev_id->flags = INPUT_DEVICE_ID_MATCH_VENDOR | INPUT_DEVICE_ID_MATCH_PRODUCT | | 
 | 			 INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_SWBIT; | 
 | 	idev_id->vendor = USB_ID_VENDOR(mixer->chip->usb_id); | 
 | 	idev_id->product = USB_ID_PRODUCT(mixer->chip->usb_id); | 
 | 	idev_id->evbit[BIT_WORD(EV_SW)] = BIT_MASK(EV_SW); | 
 | 	if (is_output) | 
 | 		idev_id->swbit[BIT_WORD(SW_HEADPHONE_INSERT)] = BIT_MASK(SW_HEADPHONE_INSERT); | 
 | 	else | 
 | 		idev_id->swbit[BIT_WORD(SW_MICROPHONE_INSERT)] = BIT_MASK(SW_MICROPHONE_INSERT); | 
 |  | 
 | 	mei->ih.event = snd_dualsense_ih_event; | 
 | 	mei->ih.match = snd_dualsense_ih_match; | 
 | 	mei->ih.connect = snd_dualsense_ih_connect; | 
 | 	mei->ih.disconnect = snd_dualsense_ih_disconnect; | 
 | 	mei->ih.start = snd_dualsense_ih_start; | 
 | 	mei->ih.name = name; | 
 | 	mei->ih.id_table = mei->id_table; | 
 |  | 
 | 	err = input_register_handler(&mei->ih); | 
 | 	if (err) { | 
 | 		dev_warn(&mixer->chip->dev->dev, | 
 | 			 "Could not register input handler: %d\n", err); | 
 | 		mei->ih.event = NULL; | 
 | 	} | 
 |  | 
 | 	return 0; | 
 | } | 
 |  | 
 | static int snd_dualsense_controls_create(struct usb_mixer_interface *mixer) | 
 | { | 
 | 	int err; | 
 |  | 
 | 	err = snd_dualsense_jack_create(mixer, "Headphone Jack", true); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	return snd_dualsense_jack_create(mixer, "Headset Mic Jack", false); | 
 | } | 
 | #endif /* IS_REACHABLE(CONFIG_INPUT) */ | 
 |  | 
 | /* ASUS Xonar U1 / U3 controls */ | 
 |  | 
 | static int snd_xonar_u1_switch_get(struct snd_kcontrol *kcontrol, | 
 | 				   struct snd_ctl_elem_value *ucontrol) | 
 | { | 
 | 	ucontrol->value.integer.value[0] = !!(kcontrol->private_value & 0x02); | 
 | 	return 0; | 
 | } | 
 |  | 
 | static int snd_xonar_u1_switch_update(struct usb_mixer_interface *mixer, | 
 | 				      unsigned char status) | 
 | { | 
 | 	struct snd_usb_audio *chip = mixer->chip; | 
 | 	int err; | 
 |  | 
 | 	err = snd_usb_lock_shutdown(chip); | 
 | 	if (err < 0) | 
 | 		return err; | 
 | 	err = snd_usb_ctl_msg(chip->dev, | 
 | 			      usb_sndctrlpipe(chip->dev, 0), 0x08, | 
 | 			      USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER, | 
 | 			      50, 0, &status, 1); | 
 | 	snd_usb_unlock_shutdown(chip); | 
 | 	return err; | 
 | } | 
 |  | 
 | static int snd_xonar_u1_switch_put(struct snd_kcontrol *kcontrol, | 
 | 				   struct snd_ctl_elem_value *ucontrol) | 
 | { | 
 | 	struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol); | 
 | 	u8 old_status, new_status; | 
 | 	int err; | 
 |  | 
 | 	old_status = kcontrol->private_value; | 
 | 	if (ucontrol->value.integer.value[0]) | 
 | 		new_status = old_status | 0x02; | 
 | 	else | 
 | 		new_status = old_status & ~0x02; | 
 | 	if (new_status == old_status) | 
 | 		return 0; | 
 |  | 
 | 	kcontrol->private_value = new_status; | 
 | 	err = snd_xonar_u1_switch_update(list->mixer, new_status); | 
 | 	return err < 0 ? err : 1; | 
 | } | 
 |  | 
 | static int snd_xonar_u1_switch_resume(struct usb_mixer_elem_list *list) | 
 | { | 
 | 	return snd_xonar_u1_switch_update(list->mixer, | 
 | 					  list->kctl->private_value); | 
 | } | 
 |  | 
 | static const struct snd_kcontrol_new snd_xonar_u1_output_switch = { | 
 | 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 	.name = "Digital Playback Switch", | 
 | 	.info = snd_ctl_boolean_mono_info, | 
 | 	.get = snd_xonar_u1_switch_get, | 
 | 	.put = snd_xonar_u1_switch_put, | 
 | 	.private_value = 0x05, | 
 | }; | 
 |  | 
 | static int snd_xonar_u1_controls_create(struct usb_mixer_interface *mixer) | 
 | { | 
 | 	return add_single_ctl_with_resume(mixer, 0, | 
 | 					  snd_xonar_u1_switch_resume, | 
 | 					  &snd_xonar_u1_output_switch, NULL); | 
 | } | 
 |  | 
 | /* Digidesign Mbox 1 helper functions */ | 
 |  | 
 | static int snd_mbox1_is_spdif_synced(struct snd_usb_audio *chip) | 
 | { | 
 | 	unsigned char buff[3]; | 
 | 	int err; | 
 | 	int is_spdif_synced; | 
 |  | 
 | 	/* Read clock source */ | 
 | 	err = snd_usb_ctl_msg(chip->dev, | 
 | 			      usb_rcvctrlpipe(chip->dev, 0), 0x81, | 
 | 			      USB_DIR_IN | | 
 | 			      USB_TYPE_CLASS | | 
 | 			      USB_RECIP_ENDPOINT, 0x100, 0x81, buff, 3); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	/* spdif sync: buff is all zeroes */ | 
 | 	is_spdif_synced = !(buff[0] | buff[1] | buff[2]); | 
 | 	return is_spdif_synced; | 
 | } | 
 |  | 
 | static int snd_mbox1_set_clk_source(struct snd_usb_audio *chip, int rate_or_zero) | 
 | { | 
 | 	/* 2 possibilities:	Internal    -> expects sample rate | 
 | 	 *			S/PDIF sync -> expects rate = 0 | 
 | 	 */ | 
 | 	unsigned char buff[3]; | 
 |  | 
 | 	buff[0] = (rate_or_zero >>  0) & 0xff; | 
 | 	buff[1] = (rate_or_zero >>  8) & 0xff; | 
 | 	buff[2] = (rate_or_zero >> 16) & 0xff; | 
 |  | 
 | 	/* Set clock source */ | 
 | 	return snd_usb_ctl_msg(chip->dev, | 
 | 			       usb_sndctrlpipe(chip->dev, 0), 0x1, | 
 | 			       USB_TYPE_CLASS | | 
 | 			       USB_RECIP_ENDPOINT, 0x100, 0x81, buff, 3); | 
 | } | 
 |  | 
 | static int snd_mbox1_is_spdif_input(struct snd_usb_audio *chip) | 
 | { | 
 | 	/* Hardware gives 2 possibilities:	ANALOG Source  -> 0x01 | 
 | 	 *					S/PDIF Source  -> 0x02 | 
 | 	 */ | 
 | 	int err; | 
 | 	unsigned char source[1]; | 
 |  | 
 | 	/* Read input source */ | 
 | 	err = snd_usb_ctl_msg(chip->dev, | 
 | 			      usb_rcvctrlpipe(chip->dev, 0), 0x81, | 
 | 			      USB_DIR_IN | | 
 | 			      USB_TYPE_CLASS | | 
 | 			      USB_RECIP_INTERFACE, 0x00, 0x500, source, 1); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	return (source[0] == 2); | 
 | } | 
 |  | 
 | static int snd_mbox1_set_input_source(struct snd_usb_audio *chip, int is_spdif) | 
 | { | 
 | 	/* NB: Setting the input source to S/PDIF resets the clock source to S/PDIF | 
 | 	 * Hardware expects 2 possibilities:	ANALOG Source  -> 0x01 | 
 | 	 *					S/PDIF Source  -> 0x02 | 
 | 	 */ | 
 | 	unsigned char buff[1]; | 
 |  | 
 | 	buff[0] = (is_spdif & 1) + 1; | 
 |  | 
 | 	/* Set input source */ | 
 | 	return snd_usb_ctl_msg(chip->dev, | 
 | 			       usb_sndctrlpipe(chip->dev, 0), 0x1, | 
 | 			       USB_TYPE_CLASS | | 
 | 			       USB_RECIP_INTERFACE, 0x00, 0x500, buff, 1); | 
 | } | 
 |  | 
 | /* Digidesign Mbox 1 clock source switch (internal/spdif) */ | 
 |  | 
 | static int snd_mbox1_clk_switch_get(struct snd_kcontrol *kctl, | 
 | 				    struct snd_ctl_elem_value *ucontrol) | 
 | { | 
 | 	struct usb_mixer_elem_list *list = snd_kcontrol_chip(kctl); | 
 | 	struct snd_usb_audio *chip = list->mixer->chip; | 
 | 	int err; | 
 |  | 
 | 	err = snd_usb_lock_shutdown(chip); | 
 | 	if (err < 0) | 
 | 		goto err; | 
 |  | 
 | 	err = snd_mbox1_is_spdif_synced(chip); | 
 | 	if (err < 0) | 
 | 		goto err; | 
 |  | 
 | 	kctl->private_value = err; | 
 | 	err = 0; | 
 | 	ucontrol->value.enumerated.item[0] = kctl->private_value; | 
 | err: | 
 | 	snd_usb_unlock_shutdown(chip); | 
 | 	return err; | 
 | } | 
 |  | 
 | static int snd_mbox1_clk_switch_update(struct usb_mixer_interface *mixer, int is_spdif_sync) | 
 | { | 
 | 	struct snd_usb_audio *chip = mixer->chip; | 
 | 	int err; | 
 |  | 
 | 	err = snd_usb_lock_shutdown(chip); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	err = snd_mbox1_is_spdif_input(chip); | 
 | 	if (err < 0) | 
 | 		goto err; | 
 |  | 
 | 	err = snd_mbox1_is_spdif_synced(chip); | 
 | 	if (err < 0) | 
 | 		goto err; | 
 |  | 
 | 	/* FIXME: hardcoded sample rate */ | 
 | 	err = snd_mbox1_set_clk_source(chip, is_spdif_sync ? 0 : 48000); | 
 | 	if (err < 0) | 
 | 		goto err; | 
 |  | 
 | 	err = snd_mbox1_is_spdif_synced(chip); | 
 | err: | 
 | 	snd_usb_unlock_shutdown(chip); | 
 | 	return err; | 
 | } | 
 |  | 
 | static int snd_mbox1_clk_switch_put(struct snd_kcontrol *kctl, | 
 | 				    struct snd_ctl_elem_value *ucontrol) | 
 | { | 
 | 	struct usb_mixer_elem_list *list = snd_kcontrol_chip(kctl); | 
 | 	struct usb_mixer_interface *mixer = list->mixer; | 
 | 	int err; | 
 | 	bool cur_val, new_val; | 
 |  | 
 | 	cur_val = kctl->private_value; | 
 | 	new_val = ucontrol->value.enumerated.item[0]; | 
 | 	if (cur_val == new_val) | 
 | 		return 0; | 
 |  | 
 | 	kctl->private_value = new_val; | 
 | 	err = snd_mbox1_clk_switch_update(mixer, new_val); | 
 | 	return err < 0 ? err : 1; | 
 | } | 
 |  | 
 | static int snd_mbox1_clk_switch_info(struct snd_kcontrol *kcontrol, | 
 | 				     struct snd_ctl_elem_info *uinfo) | 
 | { | 
 | 	static const char *const texts[2] = { | 
 | 		"Internal", | 
 | 		"S/PDIF" | 
 | 	}; | 
 |  | 
 | 	return snd_ctl_enum_info(uinfo, 1, ARRAY_SIZE(texts), texts); | 
 | } | 
 |  | 
 | static int snd_mbox1_clk_switch_resume(struct usb_mixer_elem_list *list) | 
 | { | 
 | 	return snd_mbox1_clk_switch_update(list->mixer, list->kctl->private_value); | 
 | } | 
 |  | 
 | /* Digidesign Mbox 1 input source switch (analog/spdif) */ | 
 |  | 
 | static int snd_mbox1_src_switch_get(struct snd_kcontrol *kctl, | 
 | 				    struct snd_ctl_elem_value *ucontrol) | 
 | { | 
 | 	ucontrol->value.enumerated.item[0] = kctl->private_value; | 
 | 	return 0; | 
 | } | 
 |  | 
 | static int snd_mbox1_src_switch_update(struct usb_mixer_interface *mixer, int is_spdif_input) | 
 | { | 
 | 	struct snd_usb_audio *chip = mixer->chip; | 
 | 	int err; | 
 |  | 
 | 	err = snd_usb_lock_shutdown(chip); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	err = snd_mbox1_is_spdif_input(chip); | 
 | 	if (err < 0) | 
 | 		goto err; | 
 |  | 
 | 	err = snd_mbox1_set_input_source(chip, is_spdif_input); | 
 | 	if (err < 0) | 
 | 		goto err; | 
 |  | 
 | 	err = snd_mbox1_is_spdif_input(chip); | 
 | 	if (err < 0) | 
 | 		goto err; | 
 |  | 
 | 	err = snd_mbox1_is_spdif_synced(chip); | 
 | err: | 
 | 	snd_usb_unlock_shutdown(chip); | 
 | 	return err; | 
 | } | 
 |  | 
 | static int snd_mbox1_src_switch_put(struct snd_kcontrol *kctl, | 
 | 				    struct snd_ctl_elem_value *ucontrol) | 
 | { | 
 | 	struct usb_mixer_elem_list *list = snd_kcontrol_chip(kctl); | 
 | 	struct usb_mixer_interface *mixer = list->mixer; | 
 | 	int err; | 
 | 	bool cur_val, new_val; | 
 |  | 
 | 	cur_val = kctl->private_value; | 
 | 	new_val = ucontrol->value.enumerated.item[0]; | 
 | 	if (cur_val == new_val) | 
 | 		return 0; | 
 |  | 
 | 	kctl->private_value = new_val; | 
 | 	err = snd_mbox1_src_switch_update(mixer, new_val); | 
 | 	return err < 0 ? err : 1; | 
 | } | 
 |  | 
 | static int snd_mbox1_src_switch_info(struct snd_kcontrol *kcontrol, | 
 | 				     struct snd_ctl_elem_info *uinfo) | 
 | { | 
 | 	static const char *const texts[2] = { | 
 | 		"Analog", | 
 | 		"S/PDIF" | 
 | 	}; | 
 |  | 
 | 	return snd_ctl_enum_info(uinfo, 1, ARRAY_SIZE(texts), texts); | 
 | } | 
 |  | 
 | static int snd_mbox1_src_switch_resume(struct usb_mixer_elem_list *list) | 
 | { | 
 | 	return snd_mbox1_src_switch_update(list->mixer, list->kctl->private_value); | 
 | } | 
 |  | 
 | static const struct snd_kcontrol_new snd_mbox1_clk_switch = { | 
 | 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 	.name = "Clock Source", | 
 | 	.index = 0, | 
 | 	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | 
 | 	.info = snd_mbox1_clk_switch_info, | 
 | 	.get = snd_mbox1_clk_switch_get, | 
 | 	.put = snd_mbox1_clk_switch_put, | 
 | 	.private_value = 0 | 
 | }; | 
 |  | 
 | static const struct snd_kcontrol_new snd_mbox1_src_switch = { | 
 | 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 	.name = "Input Source", | 
 | 	.index = 1, | 
 | 	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | 
 | 	.info = snd_mbox1_src_switch_info, | 
 | 	.get = snd_mbox1_src_switch_get, | 
 | 	.put = snd_mbox1_src_switch_put, | 
 | 	.private_value = 0 | 
 | }; | 
 |  | 
 | static int snd_mbox1_controls_create(struct usb_mixer_interface *mixer) | 
 | { | 
 | 	int err; | 
 |  | 
 | 	err = add_single_ctl_with_resume(mixer, 0, | 
 | 					 snd_mbox1_clk_switch_resume, | 
 | 					 &snd_mbox1_clk_switch, NULL); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	return add_single_ctl_with_resume(mixer, 1, | 
 | 					  snd_mbox1_src_switch_resume, | 
 | 					  &snd_mbox1_src_switch, NULL); | 
 | } | 
 |  | 
 | /* Native Instruments device quirks */ | 
 |  | 
 | #define _MAKE_NI_CONTROL(bRequest, wIndex) ((bRequest) << 16 | (wIndex)) | 
 |  | 
 | static int snd_ni_control_init_val(struct usb_mixer_interface *mixer, | 
 | 				   struct snd_kcontrol *kctl) | 
 | { | 
 | 	struct usb_device *dev = mixer->chip->dev; | 
 | 	unsigned int pval = kctl->private_value; | 
 | 	u8 value; | 
 | 	int err; | 
 |  | 
 | 	err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), | 
 | 			      (pval >> 16) & 0xff, | 
 | 			      USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, | 
 | 			      0, pval & 0xffff, &value, 1); | 
 | 	if (err < 0) { | 
 | 		dev_err(&dev->dev, | 
 | 			"unable to issue vendor read request (ret = %d)", err); | 
 | 		return err; | 
 | 	} | 
 |  | 
 | 	kctl->private_value |= ((unsigned int)value << 24); | 
 | 	return 0; | 
 | } | 
 |  | 
 | static int snd_nativeinstruments_control_get(struct snd_kcontrol *kcontrol, | 
 | 					     struct snd_ctl_elem_value *ucontrol) | 
 | { | 
 | 	ucontrol->value.integer.value[0] = kcontrol->private_value >> 24; | 
 | 	return 0; | 
 | } | 
 |  | 
 | static int snd_ni_update_cur_val(struct usb_mixer_elem_list *list) | 
 | { | 
 | 	struct snd_usb_audio *chip = list->mixer->chip; | 
 | 	unsigned int pval = list->kctl->private_value; | 
 | 	int err; | 
 |  | 
 | 	err = snd_usb_lock_shutdown(chip); | 
 | 	if (err < 0) | 
 | 		return err; | 
 | 	err = usb_control_msg(chip->dev, usb_sndctrlpipe(chip->dev, 0), | 
 | 			      (pval >> 16) & 0xff, | 
 | 			      USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT, | 
 | 			      pval >> 24, pval & 0xffff, NULL, 0, 1000); | 
 | 	snd_usb_unlock_shutdown(chip); | 
 | 	return err; | 
 | } | 
 |  | 
 | static int snd_nativeinstruments_control_put(struct snd_kcontrol *kcontrol, | 
 | 					     struct snd_ctl_elem_value *ucontrol) | 
 | { | 
 | 	struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol); | 
 | 	u8 oldval = (kcontrol->private_value >> 24) & 0xff; | 
 | 	u8 newval = ucontrol->value.integer.value[0]; | 
 | 	int err; | 
 |  | 
 | 	if (oldval == newval) | 
 | 		return 0; | 
 |  | 
 | 	kcontrol->private_value &= ~(0xff << 24); | 
 | 	kcontrol->private_value |= (unsigned int)newval << 24; | 
 | 	err = snd_ni_update_cur_val(list); | 
 | 	return err < 0 ? err : 1; | 
 | } | 
 |  | 
 | static const struct snd_kcontrol_new snd_nativeinstruments_ta6_mixers[] = { | 
 | 	{ | 
 | 		.name = "Direct Thru Channel A", | 
 | 		.private_value = _MAKE_NI_CONTROL(0x01, 0x03), | 
 | 	}, | 
 | 	{ | 
 | 		.name = "Direct Thru Channel B", | 
 | 		.private_value = _MAKE_NI_CONTROL(0x01, 0x05), | 
 | 	}, | 
 | 	{ | 
 | 		.name = "Phono Input Channel A", | 
 | 		.private_value = _MAKE_NI_CONTROL(0x02, 0x03), | 
 | 	}, | 
 | 	{ | 
 | 		.name = "Phono Input Channel B", | 
 | 		.private_value = _MAKE_NI_CONTROL(0x02, 0x05), | 
 | 	}, | 
 | }; | 
 |  | 
 | static const struct snd_kcontrol_new snd_nativeinstruments_ta10_mixers[] = { | 
 | 	{ | 
 | 		.name = "Direct Thru Channel A", | 
 | 		.private_value = _MAKE_NI_CONTROL(0x01, 0x03), | 
 | 	}, | 
 | 	{ | 
 | 		.name = "Direct Thru Channel B", | 
 | 		.private_value = _MAKE_NI_CONTROL(0x01, 0x05), | 
 | 	}, | 
 | 	{ | 
 | 		.name = "Direct Thru Channel C", | 
 | 		.private_value = _MAKE_NI_CONTROL(0x01, 0x07), | 
 | 	}, | 
 | 	{ | 
 | 		.name = "Direct Thru Channel D", | 
 | 		.private_value = _MAKE_NI_CONTROL(0x01, 0x09), | 
 | 	}, | 
 | 	{ | 
 | 		.name = "Phono Input Channel A", | 
 | 		.private_value = _MAKE_NI_CONTROL(0x02, 0x03), | 
 | 	}, | 
 | 	{ | 
 | 		.name = "Phono Input Channel B", | 
 | 		.private_value = _MAKE_NI_CONTROL(0x02, 0x05), | 
 | 	}, | 
 | 	{ | 
 | 		.name = "Phono Input Channel C", | 
 | 		.private_value = _MAKE_NI_CONTROL(0x02, 0x07), | 
 | 	}, | 
 | 	{ | 
 | 		.name = "Phono Input Channel D", | 
 | 		.private_value = _MAKE_NI_CONTROL(0x02, 0x09), | 
 | 	}, | 
 | }; | 
 |  | 
 | static int snd_nativeinstruments_create_mixer(struct usb_mixer_interface *mixer, | 
 | 					      const struct snd_kcontrol_new *kc, | 
 | 					      unsigned int count) | 
 | { | 
 | 	int i, err = 0; | 
 | 	struct snd_kcontrol_new template = { | 
 | 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 		.access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | 
 | 		.get = snd_nativeinstruments_control_get, | 
 | 		.put = snd_nativeinstruments_control_put, | 
 | 		.info = snd_ctl_boolean_mono_info, | 
 | 	}; | 
 |  | 
 | 	for (i = 0; i < count; i++) { | 
 | 		struct usb_mixer_elem_list *list; | 
 |  | 
 | 		template.name = kc[i].name; | 
 | 		template.private_value = kc[i].private_value; | 
 |  | 
 | 		err = add_single_ctl_with_resume(mixer, 0, | 
 | 						 snd_ni_update_cur_val, | 
 | 						 &template, &list); | 
 | 		if (err < 0) | 
 | 			break; | 
 | 		snd_ni_control_init_val(mixer, list->kctl); | 
 | 	} | 
 |  | 
 | 	return err; | 
 | } | 
 |  | 
 | /* M-Audio FastTrack Ultra quirks */ | 
 | /* FTU Effect switch (also used by C400/C600) */ | 
 | static int snd_ftu_eff_switch_info(struct snd_kcontrol *kcontrol, | 
 | 				   struct snd_ctl_elem_info *uinfo) | 
 | { | 
 | 	static const char *const texts[8] = { | 
 | 		"Room 1", "Room 2", "Room 3", "Hall 1", | 
 | 		"Hall 2", "Plate", "Delay", "Echo" | 
 | 	}; | 
 |  | 
 | 	return snd_ctl_enum_info(uinfo, 1, ARRAY_SIZE(texts), texts); | 
 | } | 
 |  | 
 | static int snd_ftu_eff_switch_init(struct usb_mixer_interface *mixer, | 
 | 				   struct snd_kcontrol *kctl) | 
 | { | 
 | 	struct usb_device *dev = mixer->chip->dev; | 
 | 	unsigned int pval = kctl->private_value; | 
 | 	int err; | 
 | 	unsigned char value[2]; | 
 |  | 
 | 	value[0] = 0x00; | 
 | 	value[1] = 0x00; | 
 |  | 
 | 	err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC_GET_CUR, | 
 | 			      USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, | 
 | 			      pval & 0xff00, | 
 | 			      snd_usb_ctrl_intf(mixer->hostif) | ((pval & 0xff) << 8), | 
 | 			      value, 2); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	kctl->private_value |= (unsigned int)value[0] << 24; | 
 | 	return 0; | 
 | } | 
 |  | 
 | static int snd_ftu_eff_switch_get(struct snd_kcontrol *kctl, | 
 | 				  struct snd_ctl_elem_value *ucontrol) | 
 | { | 
 | 	ucontrol->value.enumerated.item[0] = kctl->private_value >> 24; | 
 | 	return 0; | 
 | } | 
 |  | 
 | static int snd_ftu_eff_switch_update(struct usb_mixer_elem_list *list) | 
 | { | 
 | 	struct snd_usb_audio *chip = list->mixer->chip; | 
 | 	unsigned int pval = list->kctl->private_value; | 
 | 	unsigned char value[2]; | 
 | 	int err; | 
 |  | 
 | 	value[0] = pval >> 24; | 
 | 	value[1] = 0; | 
 |  | 
 | 	err = snd_usb_lock_shutdown(chip); | 
 | 	if (err < 0) | 
 | 		return err; | 
 | 	err = snd_usb_ctl_msg(chip->dev, | 
 | 			      usb_sndctrlpipe(chip->dev, 0), | 
 | 			      UAC_SET_CUR, | 
 | 			      USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, | 
 | 			      pval & 0xff00, | 
 | 			      snd_usb_ctrl_intf(list->mixer->hostif) | ((pval & 0xff) << 8), | 
 | 			      value, 2); | 
 | 	snd_usb_unlock_shutdown(chip); | 
 | 	return err; | 
 | } | 
 |  | 
 | static int snd_ftu_eff_switch_put(struct snd_kcontrol *kctl, | 
 | 				  struct snd_ctl_elem_value *ucontrol) | 
 | { | 
 | 	struct usb_mixer_elem_list *list = snd_kcontrol_chip(kctl); | 
 | 	unsigned int pval = list->kctl->private_value; | 
 | 	int cur_val, err, new_val; | 
 |  | 
 | 	cur_val = pval >> 24; | 
 | 	new_val = ucontrol->value.enumerated.item[0]; | 
 | 	if (cur_val == new_val) | 
 | 		return 0; | 
 |  | 
 | 	kctl->private_value &= ~(0xff << 24); | 
 | 	kctl->private_value |= new_val << 24; | 
 | 	err = snd_ftu_eff_switch_update(list); | 
 | 	return err < 0 ? err : 1; | 
 | } | 
 |  | 
 | static int snd_ftu_create_effect_switch(struct usb_mixer_interface *mixer, | 
 | 					int validx, int bUnitID) | 
 | { | 
 | 	static struct snd_kcontrol_new template = { | 
 | 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 		.name = "Effect Program Switch", | 
 | 		.index = 0, | 
 | 		.access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | 
 | 		.info = snd_ftu_eff_switch_info, | 
 | 		.get = snd_ftu_eff_switch_get, | 
 | 		.put = snd_ftu_eff_switch_put | 
 | 	}; | 
 | 	struct usb_mixer_elem_list *list; | 
 | 	int err; | 
 |  | 
 | 	err = add_single_ctl_with_resume(mixer, bUnitID, | 
 | 					 snd_ftu_eff_switch_update, | 
 | 					 &template, &list); | 
 | 	if (err < 0) | 
 | 		return err; | 
 | 	list->kctl->private_value = (validx << 8) | bUnitID; | 
 | 	snd_ftu_eff_switch_init(mixer, list->kctl); | 
 | 	return 0; | 
 | } | 
 |  | 
 | /* Create volume controls for FTU devices*/ | 
 | static int snd_ftu_create_volume_ctls(struct usb_mixer_interface *mixer) | 
 | { | 
 | 	char name[64]; | 
 | 	unsigned int control, cmask; | 
 | 	int in, out, err; | 
 |  | 
 | 	const unsigned int id = 5; | 
 | 	const int val_type = USB_MIXER_S16; | 
 |  | 
 | 	for (out = 0; out < 8; out++) { | 
 | 		control = out + 1; | 
 | 		for (in = 0; in < 8; in++) { | 
 | 			cmask = BIT(in); | 
 | 			snprintf(name, sizeof(name), | 
 | 				 "AIn%d - Out%d Capture Volume", | 
 | 				 in  + 1, out + 1); | 
 | 			err = snd_create_std_mono_ctl(mixer, id, control, | 
 | 						      cmask, val_type, name, | 
 | 						      &snd_usb_mixer_vol_tlv); | 
 | 			if (err < 0) | 
 | 				return err; | 
 | 		} | 
 | 		for (in = 8; in < 16; in++) { | 
 | 			cmask = BIT(in); | 
 | 			snprintf(name, sizeof(name), | 
 | 				 "DIn%d - Out%d Playback Volume", | 
 | 				 in - 7, out + 1); | 
 | 			err = snd_create_std_mono_ctl(mixer, id, control, | 
 | 						      cmask, val_type, name, | 
 | 						      &snd_usb_mixer_vol_tlv); | 
 | 			if (err < 0) | 
 | 				return err; | 
 | 		} | 
 | 	} | 
 |  | 
 | 	return 0; | 
 | } | 
 |  | 
 | /* This control needs a volume quirk, see mixer.c */ | 
 | static int snd_ftu_create_effect_volume_ctl(struct usb_mixer_interface *mixer) | 
 | { | 
 | 	static const char name[] = "Effect Volume"; | 
 | 	const unsigned int id = 6; | 
 | 	const int val_type = USB_MIXER_U8; | 
 | 	const unsigned int control = 2; | 
 | 	const unsigned int cmask = 0; | 
 |  | 
 | 	return snd_create_std_mono_ctl(mixer, id, control, cmask, val_type, | 
 | 					name, snd_usb_mixer_vol_tlv); | 
 | } | 
 |  | 
 | /* This control needs a volume quirk, see mixer.c */ | 
 | static int snd_ftu_create_effect_duration_ctl(struct usb_mixer_interface *mixer) | 
 | { | 
 | 	static const char name[] = "Effect Duration"; | 
 | 	const unsigned int id = 6; | 
 | 	const int val_type = USB_MIXER_S16; | 
 | 	const unsigned int control = 3; | 
 | 	const unsigned int cmask = 0; | 
 |  | 
 | 	return snd_create_std_mono_ctl(mixer, id, control, cmask, val_type, | 
 | 					name, snd_usb_mixer_vol_tlv); | 
 | } | 
 |  | 
 | /* This control needs a volume quirk, see mixer.c */ | 
 | static int snd_ftu_create_effect_feedback_ctl(struct usb_mixer_interface *mixer) | 
 | { | 
 | 	static const char name[] = "Effect Feedback Volume"; | 
 | 	const unsigned int id = 6; | 
 | 	const int val_type = USB_MIXER_U8; | 
 | 	const unsigned int control = 4; | 
 | 	const unsigned int cmask = 0; | 
 |  | 
 | 	return snd_create_std_mono_ctl(mixer, id, control, cmask, val_type, | 
 | 					name, NULL); | 
 | } | 
 |  | 
 | static int snd_ftu_create_effect_return_ctls(struct usb_mixer_interface *mixer) | 
 | { | 
 | 	unsigned int cmask; | 
 | 	int err, ch; | 
 | 	char name[48]; | 
 |  | 
 | 	const unsigned int id = 7; | 
 | 	const int val_type = USB_MIXER_S16; | 
 | 	const unsigned int control = 7; | 
 |  | 
 | 	for (ch = 0; ch < 4; ++ch) { | 
 | 		cmask = BIT(ch); | 
 | 		snprintf(name, sizeof(name), | 
 | 			 "Effect Return %d Volume", ch + 1); | 
 | 		err = snd_create_std_mono_ctl(mixer, id, control, | 
 | 					      cmask, val_type, name, | 
 | 					      snd_usb_mixer_vol_tlv); | 
 | 		if (err < 0) | 
 | 			return err; | 
 | 	} | 
 |  | 
 | 	return 0; | 
 | } | 
 |  | 
 | static int snd_ftu_create_effect_send_ctls(struct usb_mixer_interface *mixer) | 
 | { | 
 | 	unsigned int  cmask; | 
 | 	int err, ch; | 
 | 	char name[48]; | 
 |  | 
 | 	const unsigned int id = 5; | 
 | 	const int val_type = USB_MIXER_S16; | 
 | 	const unsigned int control = 9; | 
 |  | 
 | 	for (ch = 0; ch < 8; ++ch) { | 
 | 		cmask = BIT(ch); | 
 | 		snprintf(name, sizeof(name), | 
 | 			 "Effect Send AIn%d Volume", ch + 1); | 
 | 		err = snd_create_std_mono_ctl(mixer, id, control, cmask, | 
 | 					      val_type, name, | 
 | 					      snd_usb_mixer_vol_tlv); | 
 | 		if (err < 0) | 
 | 			return err; | 
 | 	} | 
 | 	for (ch = 8; ch < 16; ++ch) { | 
 | 		cmask = BIT(ch); | 
 | 		snprintf(name, sizeof(name), | 
 | 			 "Effect Send DIn%d Volume", ch - 7); | 
 | 		err = snd_create_std_mono_ctl(mixer, id, control, cmask, | 
 | 					      val_type, name, | 
 | 					      snd_usb_mixer_vol_tlv); | 
 | 		if (err < 0) | 
 | 			return err; | 
 | 	} | 
 | 	return 0; | 
 | } | 
 |  | 
 | static int snd_ftu_create_mixer(struct usb_mixer_interface *mixer) | 
 | { | 
 | 	int err; | 
 |  | 
 | 	err = snd_ftu_create_volume_ctls(mixer); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	err = snd_ftu_create_effect_switch(mixer, 1, 6); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	err = snd_ftu_create_effect_volume_ctl(mixer); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	err = snd_ftu_create_effect_duration_ctl(mixer); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	err = snd_ftu_create_effect_feedback_ctl(mixer); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	err = snd_ftu_create_effect_return_ctls(mixer); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	err = snd_ftu_create_effect_send_ctls(mixer); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	return 0; | 
 | } | 
 |  | 
 | void snd_emuusb_set_samplerate(struct snd_usb_audio *chip, | 
 | 			       unsigned char samplerate_id) | 
 | { | 
 | 	struct usb_mixer_interface *mixer; | 
 | 	struct usb_mixer_elem_info *cval; | 
 | 	int unitid = 12; /* SampleRate ExtensionUnit ID */ | 
 |  | 
 | 	list_for_each_entry(mixer, &chip->mixer_list, list) { | 
 | 		if (mixer->id_elems[unitid]) { | 
 | 			cval = mixer_elem_list_to_info(mixer->id_elems[unitid]); | 
 | 			snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, | 
 | 						    cval->control << 8, | 
 | 						    samplerate_id); | 
 | 			snd_usb_mixer_notify_id(mixer, unitid); | 
 | 			break; | 
 | 		} | 
 | 	} | 
 | } | 
 |  | 
 | /* M-Audio Fast Track C400/C600 */ | 
 | /* C400/C600 volume controls, this control needs a volume quirk, see mixer.c */ | 
 | static int snd_c400_create_vol_ctls(struct usb_mixer_interface *mixer) | 
 | { | 
 | 	char name[64]; | 
 | 	unsigned int cmask, offset; | 
 | 	int out, chan, err; | 
 | 	int num_outs = 0; | 
 | 	int num_ins = 0; | 
 |  | 
 | 	const unsigned int id = 0x40; | 
 | 	const int val_type = USB_MIXER_S16; | 
 | 	const int control = 1; | 
 |  | 
 | 	switch (mixer->chip->usb_id) { | 
 | 	case USB_ID(0x0763, 0x2030): | 
 | 		num_outs = 6; | 
 | 		num_ins = 4; | 
 | 		break; | 
 | 	case USB_ID(0x0763, 0x2031): | 
 | 		num_outs = 8; | 
 | 		num_ins = 6; | 
 | 		break; | 
 | 	} | 
 |  | 
 | 	for (chan = 0; chan < num_outs + num_ins; chan++) { | 
 | 		for (out = 0; out < num_outs; out++) { | 
 | 			if (chan < num_outs) { | 
 | 				snprintf(name, sizeof(name), | 
 | 					 "PCM%d-Out%d Playback Volume", | 
 | 					 chan + 1, out + 1); | 
 | 			} else { | 
 | 				snprintf(name, sizeof(name), | 
 | 					 "In%d-Out%d Playback Volume", | 
 | 					 chan - num_outs + 1, out + 1); | 
 | 			} | 
 |  | 
 | 			cmask = (out == 0) ? 0 : BIT(out - 1); | 
 | 			offset = chan * num_outs; | 
 | 			err = snd_create_std_mono_ctl_offset(mixer, id, control, | 
 | 							     cmask, val_type, offset, name, | 
 | 							     &snd_usb_mixer_vol_tlv); | 
 | 			if (err < 0) | 
 | 				return err; | 
 | 		} | 
 | 	} | 
 |  | 
 | 	return 0; | 
 | } | 
 |  | 
 | /* This control needs a volume quirk, see mixer.c */ | 
 | static int snd_c400_create_effect_volume_ctl(struct usb_mixer_interface *mixer) | 
 | { | 
 | 	static const char name[] = "Effect Volume"; | 
 | 	const unsigned int id = 0x43; | 
 | 	const int val_type = USB_MIXER_U8; | 
 | 	const unsigned int control = 3; | 
 | 	const unsigned int cmask = 0; | 
 |  | 
 | 	return snd_create_std_mono_ctl(mixer, id, control, cmask, val_type, | 
 | 				       name, snd_usb_mixer_vol_tlv); | 
 | } | 
 |  | 
 | /* This control needs a volume quirk, see mixer.c */ | 
 | static int snd_c400_create_effect_duration_ctl(struct usb_mixer_interface *mixer) | 
 | { | 
 | 	static const char name[] = "Effect Duration"; | 
 | 	const unsigned int id = 0x43; | 
 | 	const int val_type = USB_MIXER_S16; | 
 | 	const unsigned int control = 4; | 
 | 	const unsigned int cmask = 0; | 
 |  | 
 | 	return snd_create_std_mono_ctl(mixer, id, control, cmask, val_type, | 
 | 				       name, snd_usb_mixer_vol_tlv); | 
 | } | 
 |  | 
 | /* This control needs a volume quirk, see mixer.c */ | 
 | static int snd_c400_create_effect_feedback_ctl(struct usb_mixer_interface *mixer) | 
 | { | 
 | 	static const char name[] = "Effect Feedback Volume"; | 
 | 	const unsigned int id = 0x43; | 
 | 	const int val_type = USB_MIXER_U8; | 
 | 	const unsigned int control = 5; | 
 | 	const unsigned int cmask = 0; | 
 |  | 
 | 	return snd_create_std_mono_ctl(mixer, id, control, cmask, val_type, | 
 | 				       name, NULL); | 
 | } | 
 |  | 
 | static int snd_c400_create_effect_vol_ctls(struct usb_mixer_interface *mixer) | 
 | { | 
 | 	char name[64]; | 
 | 	unsigned int cmask; | 
 | 	int chan, err; | 
 | 	int num_outs = 0; | 
 | 	int num_ins = 0; | 
 |  | 
 | 	const unsigned int id = 0x42; | 
 | 	const int val_type = USB_MIXER_S16; | 
 | 	const int control = 1; | 
 |  | 
 | 	switch (mixer->chip->usb_id) { | 
 | 	case USB_ID(0x0763, 0x2030): | 
 | 		num_outs = 6; | 
 | 		num_ins = 4; | 
 | 		break; | 
 | 	case USB_ID(0x0763, 0x2031): | 
 | 		num_outs = 8; | 
 | 		num_ins = 6; | 
 | 		break; | 
 | 	} | 
 |  | 
 | 	for (chan = 0; chan < num_outs + num_ins; chan++) { | 
 | 		if (chan < num_outs) { | 
 | 			snprintf(name, sizeof(name), | 
 | 				 "Effect Send DOut%d", | 
 | 				 chan + 1); | 
 | 		} else { | 
 | 			snprintf(name, sizeof(name), | 
 | 				 "Effect Send AIn%d", | 
 | 				 chan - num_outs + 1); | 
 | 		} | 
 |  | 
 | 		cmask = (chan == 0) ? 0 : BIT(chan - 1); | 
 | 		err = snd_create_std_mono_ctl(mixer, id, control, | 
 | 					      cmask, val_type, name, | 
 | 					      &snd_usb_mixer_vol_tlv); | 
 | 		if (err < 0) | 
 | 			return err; | 
 | 	} | 
 |  | 
 | 	return 0; | 
 | } | 
 |  | 
 | static int snd_c400_create_effect_ret_vol_ctls(struct usb_mixer_interface *mixer) | 
 | { | 
 | 	char name[64]; | 
 | 	unsigned int cmask; | 
 | 	int chan, err; | 
 | 	int num_outs = 0; | 
 | 	int offset = 0; | 
 |  | 
 | 	const unsigned int id = 0x40; | 
 | 	const int val_type = USB_MIXER_S16; | 
 | 	const int control = 1; | 
 |  | 
 | 	switch (mixer->chip->usb_id) { | 
 | 	case USB_ID(0x0763, 0x2030): | 
 | 		num_outs = 6; | 
 | 		offset = 0x3c; | 
 | 		/* { 0x3c, 0x43, 0x3e, 0x45, 0x40, 0x47 } */ | 
 | 		break; | 
 | 	case USB_ID(0x0763, 0x2031): | 
 | 		num_outs = 8; | 
 | 		offset = 0x70; | 
 | 		/* { 0x70, 0x79, 0x72, 0x7b, 0x74, 0x7d, 0x76, 0x7f } */ | 
 | 		break; | 
 | 	} | 
 |  | 
 | 	for (chan = 0; chan < num_outs; chan++) { | 
 | 		snprintf(name, sizeof(name), | 
 | 			 "Effect Return %d", | 
 | 			 chan + 1); | 
 |  | 
 | 		cmask = (chan == 0) ? 0 : | 
 | 			BIT(chan + (chan % 2) * num_outs - 1); | 
 | 		err = snd_create_std_mono_ctl_offset(mixer, id, control, | 
 | 						     cmask, val_type, offset, name, | 
 | 						     &snd_usb_mixer_vol_tlv); | 
 | 		if (err < 0) | 
 | 			return err; | 
 | 	} | 
 |  | 
 | 	return 0; | 
 | } | 
 |  | 
 | static int snd_c400_create_mixer(struct usb_mixer_interface *mixer) | 
 | { | 
 | 	int err; | 
 |  | 
 | 	err = snd_c400_create_vol_ctls(mixer); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	err = snd_c400_create_effect_vol_ctls(mixer); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	err = snd_c400_create_effect_ret_vol_ctls(mixer); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	err = snd_ftu_create_effect_switch(mixer, 2, 0x43); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	err = snd_c400_create_effect_volume_ctl(mixer); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	err = snd_c400_create_effect_duration_ctl(mixer); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	err = snd_c400_create_effect_feedback_ctl(mixer); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	return 0; | 
 | } | 
 |  | 
 | /* | 
 |  * The mixer units for Ebox-44 are corrupt, and even where they | 
 |  * are valid they presents mono controls as L and R channels of | 
 |  * stereo. So we provide a good mixer here. | 
 |  */ | 
 | static const struct std_mono_table ebox44_table[] = { | 
 | 	{ | 
 | 		.unitid = 4, | 
 | 		.control = 1, | 
 | 		.cmask = 0x0, | 
 | 		.val_type = USB_MIXER_INV_BOOLEAN, | 
 | 		.name = "Headphone Playback Switch" | 
 | 	}, | 
 | 	{ | 
 | 		.unitid = 4, | 
 | 		.control = 2, | 
 | 		.cmask = 0x1, | 
 | 		.val_type = USB_MIXER_S16, | 
 | 		.name = "Headphone A Mix Playback Volume" | 
 | 	}, | 
 | 	{ | 
 | 		.unitid = 4, | 
 | 		.control = 2, | 
 | 		.cmask = 0x2, | 
 | 		.val_type = USB_MIXER_S16, | 
 | 		.name = "Headphone B Mix Playback Volume" | 
 | 	}, | 
 |  | 
 | 	{ | 
 | 		.unitid = 7, | 
 | 		.control = 1, | 
 | 		.cmask = 0x0, | 
 | 		.val_type = USB_MIXER_INV_BOOLEAN, | 
 | 		.name = "Output Playback Switch" | 
 | 	}, | 
 | 	{ | 
 | 		.unitid = 7, | 
 | 		.control = 2, | 
 | 		.cmask = 0x1, | 
 | 		.val_type = USB_MIXER_S16, | 
 | 		.name = "Output A Playback Volume" | 
 | 	}, | 
 | 	{ | 
 | 		.unitid = 7, | 
 | 		.control = 2, | 
 | 		.cmask = 0x2, | 
 | 		.val_type = USB_MIXER_S16, | 
 | 		.name = "Output B Playback Volume" | 
 | 	}, | 
 |  | 
 | 	{ | 
 | 		.unitid = 10, | 
 | 		.control = 1, | 
 | 		.cmask = 0x0, | 
 | 		.val_type = USB_MIXER_INV_BOOLEAN, | 
 | 		.name = "Input Capture Switch" | 
 | 	}, | 
 | 	{ | 
 | 		.unitid = 10, | 
 | 		.control = 2, | 
 | 		.cmask = 0x1, | 
 | 		.val_type = USB_MIXER_S16, | 
 | 		.name = "Input A Capture Volume" | 
 | 	}, | 
 | 	{ | 
 | 		.unitid = 10, | 
 | 		.control = 2, | 
 | 		.cmask = 0x2, | 
 | 		.val_type = USB_MIXER_S16, | 
 | 		.name = "Input B Capture Volume" | 
 | 	}, | 
 |  | 
 | 	{} | 
 | }; | 
 |  | 
 | /* Audio Advantage Micro II findings: | 
 |  * | 
 |  * Mapping spdif AES bits to vendor register.bit: | 
 |  * AES0: [0 0 0 0 2.3 2.2 2.1 2.0] - default 0x00 | 
 |  * AES1: [3.3 3.2.3.1.3.0 2.7 2.6 2.5 2.4] - default: 0x01 | 
 |  * AES2: [0 0 0 0 0 0 0 0] | 
 |  * AES3: [0 0 0 0 0 0 x 0] - 'x' bit is set basing on standard usb request | 
 |  *                           (UAC_EP_CS_ATTR_SAMPLE_RATE) for Audio Devices | 
 |  * | 
 |  * power on values: | 
 |  * r2: 0x10 | 
 |  * r3: 0x20 (b7 is zeroed just before playback (except IEC61937) and set | 
 |  *           just after it to 0xa0, presumably it disables/mutes some analog | 
 |  *           parts when there is no audio.) | 
 |  * r9: 0x28 | 
 |  * | 
 |  * Optical transmitter on/off: | 
 |  * vendor register.bit: 9.1 | 
 |  * 0 - on (0x28 register value) | 
 |  * 1 - off (0x2a register value) | 
 |  * | 
 |  */ | 
 | static int snd_microii_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_microii_spdif_default_get(struct snd_kcontrol *kcontrol, | 
 | 					 struct snd_ctl_elem_value *ucontrol) | 
 | { | 
 | 	struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol); | 
 | 	struct snd_usb_audio *chip = list->mixer->chip; | 
 | 	int err; | 
 | 	struct usb_interface *iface; | 
 | 	struct usb_host_interface *alts; | 
 | 	unsigned int ep; | 
 | 	unsigned char data[3]; | 
 | 	int rate; | 
 |  | 
 | 	err = snd_usb_lock_shutdown(chip); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	ucontrol->value.iec958.status[0] = kcontrol->private_value & 0xff; | 
 | 	ucontrol->value.iec958.status[1] = (kcontrol->private_value >> 8) & 0xff; | 
 | 	ucontrol->value.iec958.status[2] = 0x00; | 
 |  | 
 | 	/* use known values for that card: interface#1 altsetting#1 */ | 
 | 	iface = usb_ifnum_to_if(chip->dev, 1); | 
 | 	if (!iface || iface->num_altsetting < 2) { | 
 | 		err = -EINVAL; | 
 | 		goto end; | 
 | 	} | 
 | 	alts = &iface->altsetting[1]; | 
 | 	if (get_iface_desc(alts)->bNumEndpoints < 1) { | 
 | 		err = -EINVAL; | 
 | 		goto end; | 
 | 	} | 
 | 	ep = get_endpoint(alts, 0)->bEndpointAddress; | 
 |  | 
 | 	err = snd_usb_ctl_msg(chip->dev, | 
 | 			      usb_rcvctrlpipe(chip->dev, 0), | 
 | 			      UAC_GET_CUR, | 
 | 			      USB_TYPE_CLASS | USB_RECIP_ENDPOINT | USB_DIR_IN, | 
 | 			      UAC_EP_CS_ATTR_SAMPLE_RATE << 8, | 
 | 			      ep, | 
 | 			      data, | 
 | 			      sizeof(data)); | 
 | 	if (err < 0) | 
 | 		goto end; | 
 |  | 
 | 	rate = data[0] | (data[1] << 8) | (data[2] << 16); | 
 | 	ucontrol->value.iec958.status[3] = (rate == 48000) ? | 
 | 			IEC958_AES3_CON_FS_48000 : IEC958_AES3_CON_FS_44100; | 
 |  | 
 | 	err = 0; | 
 |  end: | 
 | 	snd_usb_unlock_shutdown(chip); | 
 | 	return err; | 
 | } | 
 |  | 
 | static int snd_microii_spdif_default_update(struct usb_mixer_elem_list *list) | 
 | { | 
 | 	struct snd_usb_audio *chip = list->mixer->chip; | 
 | 	unsigned int pval = list->kctl->private_value; | 
 | 	u8 reg; | 
 | 	int err; | 
 |  | 
 | 	err = snd_usb_lock_shutdown(chip); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	reg = ((pval >> 4) & 0xf0) | (pval & 0x0f); | 
 | 	err = snd_usb_ctl_msg(chip->dev, | 
 | 			      usb_sndctrlpipe(chip->dev, 0), | 
 | 			      UAC_SET_CUR, | 
 | 			      USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER, | 
 | 			      reg, | 
 | 			      2, | 
 | 			      NULL, | 
 | 			      0); | 
 | 	if (err < 0) | 
 | 		goto end; | 
 |  | 
 | 	reg = (pval & IEC958_AES0_NONAUDIO) ? 0xa0 : 0x20; | 
 | 	reg |= (pval >> 12) & 0x0f; | 
 | 	err = snd_usb_ctl_msg(chip->dev, | 
 | 			      usb_sndctrlpipe(chip->dev, 0), | 
 | 			      UAC_SET_CUR, | 
 | 			      USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER, | 
 | 			      reg, | 
 | 			      3, | 
 | 			      NULL, | 
 | 			      0); | 
 | 	if (err < 0) | 
 | 		goto end; | 
 |  | 
 |  end: | 
 | 	snd_usb_unlock_shutdown(chip); | 
 | 	return err; | 
 | } | 
 |  | 
 | static int snd_microii_spdif_default_put(struct snd_kcontrol *kcontrol, | 
 | 					 struct snd_ctl_elem_value *ucontrol) | 
 | { | 
 | 	struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol); | 
 | 	unsigned int pval, pval_old; | 
 | 	int err; | 
 |  | 
 | 	pval = kcontrol->private_value; | 
 | 	pval_old = pval; | 
 | 	pval &= 0xfffff0f0; | 
 | 	pval |= (ucontrol->value.iec958.status[1] & 0x0f) << 8; | 
 | 	pval |= (ucontrol->value.iec958.status[0] & 0x0f); | 
 |  | 
 | 	pval &= 0xffff0fff; | 
 | 	pval |= (ucontrol->value.iec958.status[1] & 0xf0) << 8; | 
 |  | 
 | 	/* The frequency bits in AES3 cannot be set via register access. */ | 
 |  | 
 | 	/* Silently ignore any bits from the request that cannot be set. */ | 
 |  | 
 | 	if (pval == pval_old) | 
 | 		return 0; | 
 |  | 
 | 	kcontrol->private_value = pval; | 
 | 	err = snd_microii_spdif_default_update(list); | 
 | 	return err < 0 ? err : 1; | 
 | } | 
 |  | 
 | static int snd_microii_spdif_mask_get(struct snd_kcontrol *kcontrol, | 
 | 				      struct snd_ctl_elem_value *ucontrol) | 
 | { | 
 | 	ucontrol->value.iec958.status[0] = 0x0f; | 
 | 	ucontrol->value.iec958.status[1] = 0xff; | 
 | 	ucontrol->value.iec958.status[2] = 0x00; | 
 | 	ucontrol->value.iec958.status[3] = 0x00; | 
 |  | 
 | 	return 0; | 
 | } | 
 |  | 
 | static int snd_microii_spdif_switch_get(struct snd_kcontrol *kcontrol, | 
 | 					struct snd_ctl_elem_value *ucontrol) | 
 | { | 
 | 	ucontrol->value.integer.value[0] = !(kcontrol->private_value & 0x02); | 
 |  | 
 | 	return 0; | 
 | } | 
 |  | 
 | static int snd_microii_spdif_switch_update(struct usb_mixer_elem_list *list) | 
 | { | 
 | 	struct snd_usb_audio *chip = list->mixer->chip; | 
 | 	u8 reg = list->kctl->private_value; | 
 | 	int err; | 
 |  | 
 | 	err = snd_usb_lock_shutdown(chip); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	err = snd_usb_ctl_msg(chip->dev, | 
 | 			      usb_sndctrlpipe(chip->dev, 0), | 
 | 			      UAC_SET_CUR, | 
 | 			      USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER, | 
 | 			      reg, | 
 | 			      9, | 
 | 			      NULL, | 
 | 			      0); | 
 |  | 
 | 	snd_usb_unlock_shutdown(chip); | 
 | 	return err; | 
 | } | 
 |  | 
 | static int snd_microii_spdif_switch_put(struct snd_kcontrol *kcontrol, | 
 | 					struct snd_ctl_elem_value *ucontrol) | 
 | { | 
 | 	struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol); | 
 | 	u8 reg; | 
 | 	int err; | 
 |  | 
 | 	reg = ucontrol->value.integer.value[0] ? 0x28 : 0x2a; | 
 | 	if (reg != list->kctl->private_value) | 
 | 		return 0; | 
 |  | 
 | 	kcontrol->private_value = reg; | 
 | 	err = snd_microii_spdif_switch_update(list); | 
 | 	return err < 0 ? err : 1; | 
 | } | 
 |  | 
 | static const struct snd_kcontrol_new snd_microii_mixer_spdif[] = { | 
 | 	{ | 
 | 		.iface =    SNDRV_CTL_ELEM_IFACE_PCM, | 
 | 		.name =     SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT), | 
 | 		.info =     snd_microii_spdif_info, | 
 | 		.get =      snd_microii_spdif_default_get, | 
 | 		.put =      snd_microii_spdif_default_put, | 
 | 		.private_value = 0x00000100UL,/* reset value */ | 
 | 	}, | 
 | 	{ | 
 | 		.access =   SNDRV_CTL_ELEM_ACCESS_READ, | 
 | 		.iface =    SNDRV_CTL_ELEM_IFACE_PCM, | 
 | 		.name =     SNDRV_CTL_NAME_IEC958("", PLAYBACK, MASK), | 
 | 		.info =     snd_microii_spdif_info, | 
 | 		.get =      snd_microii_spdif_mask_get, | 
 | 	}, | 
 | 	{ | 
 | 		.iface =    SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 		.name =     SNDRV_CTL_NAME_IEC958("", PLAYBACK, SWITCH), | 
 | 		.info =     snd_ctl_boolean_mono_info, | 
 | 		.get =      snd_microii_spdif_switch_get, | 
 | 		.put =      snd_microii_spdif_switch_put, | 
 | 		.private_value = 0x00000028UL,/* reset value */ | 
 | 	} | 
 | }; | 
 |  | 
 | static int snd_microii_controls_create(struct usb_mixer_interface *mixer) | 
 | { | 
 | 	int err, i; | 
 | 	static const usb_mixer_elem_resume_func_t resume_funcs[] = { | 
 | 		snd_microii_spdif_default_update, | 
 | 		NULL, | 
 | 		snd_microii_spdif_switch_update | 
 | 	}; | 
 |  | 
 | 	for (i = 0; i < ARRAY_SIZE(snd_microii_mixer_spdif); ++i) { | 
 | 		err = add_single_ctl_with_resume(mixer, 0, | 
 | 						 resume_funcs[i], | 
 | 						 &snd_microii_mixer_spdif[i], | 
 | 						 NULL); | 
 | 		if (err < 0) | 
 | 			return err; | 
 | 	} | 
 |  | 
 | 	return 0; | 
 | } | 
 |  | 
 | /* Creative Sound Blaster E1 */ | 
 |  | 
 | static int snd_soundblaster_e1_switch_get(struct snd_kcontrol *kcontrol, | 
 | 					  struct snd_ctl_elem_value *ucontrol) | 
 | { | 
 | 	ucontrol->value.integer.value[0] = kcontrol->private_value; | 
 | 	return 0; | 
 | } | 
 |  | 
 | static int snd_soundblaster_e1_switch_update(struct usb_mixer_interface *mixer, | 
 | 					     unsigned char state) | 
 | { | 
 | 	struct snd_usb_audio *chip = mixer->chip; | 
 | 	int err; | 
 | 	unsigned char buff[2]; | 
 |  | 
 | 	buff[0] = 0x02; | 
 | 	buff[1] = state ? 0x02 : 0x00; | 
 |  | 
 | 	err = snd_usb_lock_shutdown(chip); | 
 | 	if (err < 0) | 
 | 		return err; | 
 | 	err = snd_usb_ctl_msg(chip->dev, | 
 | 			      usb_sndctrlpipe(chip->dev, 0), HID_REQ_SET_REPORT, | 
 | 			      USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_OUT, | 
 | 			      0x0202, 3, buff, 2); | 
 | 	snd_usb_unlock_shutdown(chip); | 
 | 	return err; | 
 | } | 
 |  | 
 | static int snd_soundblaster_e1_switch_put(struct snd_kcontrol *kcontrol, | 
 | 					  struct snd_ctl_elem_value *ucontrol) | 
 | { | 
 | 	struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol); | 
 | 	unsigned char value = !!ucontrol->value.integer.value[0]; | 
 | 	int err; | 
 |  | 
 | 	if (kcontrol->private_value == value) | 
 | 		return 0; | 
 | 	kcontrol->private_value = value; | 
 | 	err = snd_soundblaster_e1_switch_update(list->mixer, value); | 
 | 	return err < 0 ? err : 1; | 
 | } | 
 |  | 
 | static int snd_soundblaster_e1_switch_resume(struct usb_mixer_elem_list *list) | 
 | { | 
 | 	return snd_soundblaster_e1_switch_update(list->mixer, | 
 | 						 list->kctl->private_value); | 
 | } | 
 |  | 
 | static int snd_soundblaster_e1_switch_info(struct snd_kcontrol *kcontrol, | 
 | 					   struct snd_ctl_elem_info *uinfo) | 
 | { | 
 | 	static const char *const texts[2] = { | 
 | 		"Mic", "Aux" | 
 | 	}; | 
 |  | 
 | 	return snd_ctl_enum_info(uinfo, 1, ARRAY_SIZE(texts), texts); | 
 | } | 
 |  | 
 | static const struct snd_kcontrol_new snd_soundblaster_e1_input_switch = { | 
 | 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 	.name = "Input Source", | 
 | 	.info = snd_soundblaster_e1_switch_info, | 
 | 	.get = snd_soundblaster_e1_switch_get, | 
 | 	.put = snd_soundblaster_e1_switch_put, | 
 | 	.private_value = 0, | 
 | }; | 
 |  | 
 | static int snd_soundblaster_e1_switch_create(struct usb_mixer_interface *mixer) | 
 | { | 
 | 	return add_single_ctl_with_resume(mixer, 0, | 
 | 					  snd_soundblaster_e1_switch_resume, | 
 | 					  &snd_soundblaster_e1_input_switch, | 
 | 					  NULL); | 
 | } | 
 |  | 
 | /* | 
 |  * Dell WD15 dock jack detection | 
 |  * | 
 |  * The WD15 contains an ALC4020 USB audio controller and ALC3263 audio codec | 
 |  * from Realtek. It is a UAC 1 device, and UAC 1 does not support jack | 
 |  * detection. Instead, jack detection works by sending HD Audio commands over | 
 |  * vendor-type USB messages. | 
 |  */ | 
 |  | 
 | #define HDA_VERB_CMD(V, N, D) (((N) << 20) | ((V) << 8) | (D)) | 
 |  | 
 | #define REALTEK_HDA_VALUE 0x0038 | 
 |  | 
 | #define REALTEK_HDA_SET		62 | 
 | #define REALTEK_MANUAL_MODE	72 | 
 | #define REALTEK_HDA_GET_OUT	88 | 
 | #define REALTEK_HDA_GET_IN	89 | 
 |  | 
 | #define REALTEK_AUDIO_FUNCTION_GROUP	0x01 | 
 | #define REALTEK_LINE1			0x1a | 
 | #define REALTEK_VENDOR_REGISTERS	0x20 | 
 | #define REALTEK_HP_OUT			0x21 | 
 |  | 
 | #define REALTEK_CBJ_CTRL2 0x50 | 
 |  | 
 | #define REALTEK_JACK_INTERRUPT_NODE 5 | 
 |  | 
 | #define REALTEK_MIC_FLAG 0x100 | 
 |  | 
 | static int realtek_hda_set(struct snd_usb_audio *chip, u32 cmd) | 
 | { | 
 | 	struct usb_device *dev = chip->dev; | 
 | 	__be32 buf = cpu_to_be32(cmd); | 
 |  | 
 | 	return snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), REALTEK_HDA_SET, | 
 | 			       USB_RECIP_DEVICE | USB_TYPE_VENDOR | USB_DIR_OUT, | 
 | 			       REALTEK_HDA_VALUE, 0, &buf, sizeof(buf)); | 
 | } | 
 |  | 
 | static int realtek_hda_get(struct snd_usb_audio *chip, u32 cmd, u32 *value) | 
 | { | 
 | 	struct usb_device *dev = chip->dev; | 
 | 	int err; | 
 | 	__be32 buf = cpu_to_be32(cmd); | 
 |  | 
 | 	err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), REALTEK_HDA_GET_OUT, | 
 | 			      USB_RECIP_DEVICE | USB_TYPE_VENDOR | USB_DIR_OUT, | 
 | 			      REALTEK_HDA_VALUE, 0, &buf, sizeof(buf)); | 
 | 	if (err < 0) | 
 | 		return err; | 
 | 	err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), REALTEK_HDA_GET_IN, | 
 | 			      USB_RECIP_DEVICE | USB_TYPE_VENDOR | USB_DIR_IN, | 
 | 			      REALTEK_HDA_VALUE, 0, &buf, sizeof(buf)); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	*value = be32_to_cpu(buf); | 
 | 	return 0; | 
 | } | 
 |  | 
 | static int realtek_ctl_connector_get(struct snd_kcontrol *kcontrol, | 
 | 				     struct snd_ctl_elem_value *ucontrol) | 
 | { | 
 | 	struct usb_mixer_elem_info *cval = snd_kcontrol_chip(kcontrol); | 
 | 	struct snd_usb_audio *chip = cval->head.mixer->chip; | 
 | 	u32 pv = kcontrol->private_value; | 
 | 	u32 node_id = pv & 0xff; | 
 | 	u32 sense; | 
 | 	u32 cbj_ctrl2; | 
 | 	bool presence; | 
 | 	int err; | 
 |  | 
 | 	err = snd_usb_lock_shutdown(chip); | 
 | 	if (err < 0) | 
 | 		return err; | 
 | 	err = realtek_hda_get(chip, | 
 | 			      HDA_VERB_CMD(AC_VERB_GET_PIN_SENSE, node_id, 0), | 
 | 			      &sense); | 
 | 	if (err < 0) | 
 | 		goto err; | 
 | 	if (pv & REALTEK_MIC_FLAG) { | 
 | 		err = realtek_hda_set(chip, | 
 | 				      HDA_VERB_CMD(AC_VERB_SET_COEF_INDEX, | 
 | 						   REALTEK_VENDOR_REGISTERS, | 
 | 						   REALTEK_CBJ_CTRL2)); | 
 | 		if (err < 0) | 
 | 			goto err; | 
 | 		err = realtek_hda_get(chip, | 
 | 				      HDA_VERB_CMD(AC_VERB_GET_PROC_COEF, | 
 | 						   REALTEK_VENDOR_REGISTERS, 0), | 
 | 				      &cbj_ctrl2); | 
 | 		if (err < 0) | 
 | 			goto err; | 
 | 	} | 
 | err: | 
 | 	snd_usb_unlock_shutdown(chip); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	presence = sense & AC_PINSENSE_PRESENCE; | 
 | 	if (pv & REALTEK_MIC_FLAG) | 
 | 		presence = presence && (cbj_ctrl2 & 0x0070) == 0x0070; | 
 | 	ucontrol->value.integer.value[0] = presence; | 
 | 	return 0; | 
 | } | 
 |  | 
 | static const struct snd_kcontrol_new realtek_connector_ctl_ro = { | 
 | 	.iface = SNDRV_CTL_ELEM_IFACE_CARD, | 
 | 	.name = "", /* will be filled later manually */ | 
 | 	.access = SNDRV_CTL_ELEM_ACCESS_READ, | 
 | 	.info = snd_ctl_boolean_mono_info, | 
 | 	.get = realtek_ctl_connector_get, | 
 | }; | 
 |  | 
 | static int realtek_resume_jack(struct usb_mixer_elem_list *list) | 
 | { | 
 | 	snd_ctl_notify(list->mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, | 
 | 		       &list->kctl->id); | 
 | 	return 0; | 
 | } | 
 |  | 
 | static int realtek_add_jack(struct usb_mixer_interface *mixer, | 
 | 			    char *name, u32 val) | 
 | { | 
 | 	struct usb_mixer_elem_info *cval; | 
 | 	struct snd_kcontrol *kctl; | 
 |  | 
 | 	cval = kzalloc(sizeof(*cval), GFP_KERNEL); | 
 | 	if (!cval) | 
 | 		return -ENOMEM; | 
 | 	snd_usb_mixer_elem_init_std(&cval->head, mixer, | 
 | 				    REALTEK_JACK_INTERRUPT_NODE); | 
 | 	cval->head.resume = realtek_resume_jack; | 
 | 	cval->val_type = USB_MIXER_BOOLEAN; | 
 | 	cval->channels = 1; | 
 | 	cval->min = 0; | 
 | 	cval->max = 1; | 
 | 	kctl = snd_ctl_new1(&realtek_connector_ctl_ro, cval); | 
 | 	if (!kctl) { | 
 | 		kfree(cval); | 
 | 		return -ENOMEM; | 
 | 	} | 
 | 	kctl->private_value = val; | 
 | 	strscpy(kctl->id.name, name, sizeof(kctl->id.name)); | 
 | 	kctl->private_free = snd_usb_mixer_elem_free; | 
 | 	return snd_usb_mixer_add_control(&cval->head, kctl); | 
 | } | 
 |  | 
 | static int dell_dock_mixer_create(struct usb_mixer_interface *mixer) | 
 | { | 
 | 	int err; | 
 | 	struct usb_device *dev = mixer->chip->dev; | 
 |  | 
 | 	/* Power down the audio codec to avoid loud pops in the next step. */ | 
 | 	realtek_hda_set(mixer->chip, | 
 | 			HDA_VERB_CMD(AC_VERB_SET_POWER_STATE, | 
 | 				     REALTEK_AUDIO_FUNCTION_GROUP, | 
 | 				     AC_PWRST_D3)); | 
 |  | 
 | 	/* | 
 | 	 * Turn off 'manual mode' in case it was enabled. This removes the need | 
 | 	 * to power cycle the dock after it was attached to a Windows machine. | 
 | 	 */ | 
 | 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), REALTEK_MANUAL_MODE, | 
 | 			USB_RECIP_DEVICE | USB_TYPE_VENDOR | USB_DIR_OUT, | 
 | 			0, 0, NULL, 0); | 
 |  | 
 | 	err = realtek_add_jack(mixer, "Line Out Jack", REALTEK_LINE1); | 
 | 	if (err < 0) | 
 | 		return err; | 
 | 	err = realtek_add_jack(mixer, "Headphone Jack", REALTEK_HP_OUT); | 
 | 	if (err < 0) | 
 | 		return err; | 
 | 	err = realtek_add_jack(mixer, "Headset Mic Jack", | 
 | 			       REALTEK_HP_OUT | REALTEK_MIC_FLAG); | 
 | 	if (err < 0) | 
 | 		return err; | 
 | 	return 0; | 
 | } | 
 |  | 
 | static void dell_dock_init_vol(struct usb_mixer_interface *mixer, int ch, int id) | 
 | { | 
 | 	struct snd_usb_audio *chip = mixer->chip; | 
 | 	u16 buf = 0; | 
 |  | 
 | 	snd_usb_ctl_msg(chip->dev, usb_sndctrlpipe(chip->dev, 0), UAC_SET_CUR, | 
 | 			USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, | 
 | 			(UAC_FU_VOLUME << 8) | ch, | 
 | 			snd_usb_ctrl_intf(mixer->hostif) | (id << 8), | 
 | 			&buf, 2); | 
 | } | 
 |  | 
 | static int dell_dock_mixer_init(struct usb_mixer_interface *mixer) | 
 | { | 
 | 	/* fix to 0dB playback volumes */ | 
 | 	dell_dock_init_vol(mixer, 1, 16); | 
 | 	dell_dock_init_vol(mixer, 2, 16); | 
 | 	dell_dock_init_vol(mixer, 1, 19); | 
 | 	dell_dock_init_vol(mixer, 2, 19); | 
 | 	return 0; | 
 | } | 
 |  | 
 | /* RME Class Compliant device quirks */ | 
 |  | 
 | #define SND_RME_GET_STATUS1			23 | 
 | #define SND_RME_GET_CURRENT_FREQ		17 | 
 | #define SND_RME_CLK_SYSTEM_SHIFT		16 | 
 | #define SND_RME_CLK_SYSTEM_MASK			0x1f | 
 | #define SND_RME_CLK_AES_SHIFT			8 | 
 | #define SND_RME_CLK_SPDIF_SHIFT			12 | 
 | #define SND_RME_CLK_AES_SPDIF_MASK		0xf | 
 | #define SND_RME_CLK_SYNC_SHIFT			6 | 
 | #define SND_RME_CLK_SYNC_MASK			0x3 | 
 | #define SND_RME_CLK_FREQMUL_SHIFT		18 | 
 | #define SND_RME_CLK_FREQMUL_MASK		0x7 | 
 | #define SND_RME_CLK_SYSTEM(x) \ | 
 | 	(((x) >> SND_RME_CLK_SYSTEM_SHIFT) & SND_RME_CLK_SYSTEM_MASK) | 
 | #define SND_RME_CLK_AES(x) \ | 
 | 	(((x) >> SND_RME_CLK_AES_SHIFT) & SND_RME_CLK_AES_SPDIF_MASK) | 
 | #define SND_RME_CLK_SPDIF(x) \ | 
 | 	(((x) >> SND_RME_CLK_SPDIF_SHIFT) & SND_RME_CLK_AES_SPDIF_MASK) | 
 | #define SND_RME_CLK_SYNC(x) \ | 
 | 	(((x) >> SND_RME_CLK_SYNC_SHIFT) & SND_RME_CLK_SYNC_MASK) | 
 | #define SND_RME_CLK_FREQMUL(x) \ | 
 | 	(((x) >> SND_RME_CLK_FREQMUL_SHIFT) & SND_RME_CLK_FREQMUL_MASK) | 
 | #define SND_RME_CLK_AES_LOCK			0x1 | 
 | #define SND_RME_CLK_AES_SYNC			0x4 | 
 | #define SND_RME_CLK_SPDIF_LOCK			0x2 | 
 | #define SND_RME_CLK_SPDIF_SYNC			0x8 | 
 | #define SND_RME_SPDIF_IF_SHIFT			4 | 
 | #define SND_RME_SPDIF_FORMAT_SHIFT		5 | 
 | #define SND_RME_BINARY_MASK			0x1 | 
 | #define SND_RME_SPDIF_IF(x) \ | 
 | 	(((x) >> SND_RME_SPDIF_IF_SHIFT) & SND_RME_BINARY_MASK) | 
 | #define SND_RME_SPDIF_FORMAT(x) \ | 
 | 	(((x) >> SND_RME_SPDIF_FORMAT_SHIFT) & SND_RME_BINARY_MASK) | 
 |  | 
 | static const u32 snd_rme_rate_table[] = { | 
 | 	32000, 44100, 48000, 50000, | 
 | 	64000, 88200, 96000, 100000, | 
 | 	128000, 176400, 192000, 200000, | 
 | 	256000,	352800, 384000, 400000, | 
 | 	512000, 705600, 768000, 800000 | 
 | }; | 
 |  | 
 | /* maximum number of items for AES and S/PDIF rates for above table */ | 
 | #define SND_RME_RATE_IDX_AES_SPDIF_NUM		12 | 
 |  | 
 | enum snd_rme_domain { | 
 | 	SND_RME_DOMAIN_SYSTEM, | 
 | 	SND_RME_DOMAIN_AES, | 
 | 	SND_RME_DOMAIN_SPDIF | 
 | }; | 
 |  | 
 | enum snd_rme_clock_status { | 
 | 	SND_RME_CLOCK_NOLOCK, | 
 | 	SND_RME_CLOCK_LOCK, | 
 | 	SND_RME_CLOCK_SYNC | 
 | }; | 
 |  | 
 | static int snd_rme_read_value(struct snd_usb_audio *chip, | 
 | 			      unsigned int item, | 
 | 			      u32 *value) | 
 | { | 
 | 	struct usb_device *dev = chip->dev; | 
 | 	int err; | 
 |  | 
 | 	err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), | 
 | 			      item, | 
 | 			      USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | 
 | 			      0, 0, | 
 | 			      value, sizeof(*value)); | 
 | 	if (err < 0) | 
 | 		dev_err(&dev->dev, | 
 | 			"unable to issue vendor read request %d (ret = %d)", | 
 | 			item, err); | 
 | 	return err; | 
 | } | 
 |  | 
 | static int snd_rme_get_status1(struct snd_kcontrol *kcontrol, | 
 | 			       u32 *status1) | 
 | { | 
 | 	struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol); | 
 | 	struct snd_usb_audio *chip = list->mixer->chip; | 
 | 	int err; | 
 |  | 
 | 	err = snd_usb_lock_shutdown(chip); | 
 | 	if (err < 0) | 
 | 		return err; | 
 | 	err = snd_rme_read_value(chip, SND_RME_GET_STATUS1, status1); | 
 | 	snd_usb_unlock_shutdown(chip); | 
 | 	return err; | 
 | } | 
 |  | 
 | static int snd_rme_rate_get(struct snd_kcontrol *kcontrol, | 
 | 			    struct snd_ctl_elem_value *ucontrol) | 
 | { | 
 | 	u32 status1; | 
 | 	u32 rate = 0; | 
 | 	int idx; | 
 | 	int err; | 
 |  | 
 | 	err = snd_rme_get_status1(kcontrol, &status1); | 
 | 	if (err < 0) | 
 | 		return err; | 
 | 	switch (kcontrol->private_value) { | 
 | 	case SND_RME_DOMAIN_SYSTEM: | 
 | 		idx = SND_RME_CLK_SYSTEM(status1); | 
 | 		if (idx < ARRAY_SIZE(snd_rme_rate_table)) | 
 | 			rate = snd_rme_rate_table[idx]; | 
 | 		break; | 
 | 	case SND_RME_DOMAIN_AES: | 
 | 		idx = SND_RME_CLK_AES(status1); | 
 | 		if (idx < SND_RME_RATE_IDX_AES_SPDIF_NUM) | 
 | 			rate = snd_rme_rate_table[idx]; | 
 | 		break; | 
 | 	case SND_RME_DOMAIN_SPDIF: | 
 | 		idx = SND_RME_CLK_SPDIF(status1); | 
 | 		if (idx < SND_RME_RATE_IDX_AES_SPDIF_NUM) | 
 | 			rate = snd_rme_rate_table[idx]; | 
 | 		break; | 
 | 	default: | 
 | 		return -EINVAL; | 
 | 	} | 
 | 	ucontrol->value.integer.value[0] = rate; | 
 | 	return 0; | 
 | } | 
 |  | 
 | static int snd_rme_sync_state_get(struct snd_kcontrol *kcontrol, | 
 | 				  struct snd_ctl_elem_value *ucontrol) | 
 | { | 
 | 	u32 status1; | 
 | 	int idx = SND_RME_CLOCK_NOLOCK; | 
 | 	int err; | 
 |  | 
 | 	err = snd_rme_get_status1(kcontrol, &status1); | 
 | 	if (err < 0) | 
 | 		return err; | 
 | 	switch (kcontrol->private_value) { | 
 | 	case SND_RME_DOMAIN_AES:  /* AES */ | 
 | 		if (status1 & SND_RME_CLK_AES_SYNC) | 
 | 			idx = SND_RME_CLOCK_SYNC; | 
 | 		else if (status1 & SND_RME_CLK_AES_LOCK) | 
 | 			idx = SND_RME_CLOCK_LOCK; | 
 | 		break; | 
 | 	case SND_RME_DOMAIN_SPDIF:  /* SPDIF */ | 
 | 		if (status1 & SND_RME_CLK_SPDIF_SYNC) | 
 | 			idx = SND_RME_CLOCK_SYNC; | 
 | 		else if (status1 & SND_RME_CLK_SPDIF_LOCK) | 
 | 			idx = SND_RME_CLOCK_LOCK; | 
 | 		break; | 
 | 	default: | 
 | 		return -EINVAL; | 
 | 	} | 
 | 	ucontrol->value.enumerated.item[0] = idx; | 
 | 	return 0; | 
 | } | 
 |  | 
 | static int snd_rme_spdif_if_get(struct snd_kcontrol *kcontrol, | 
 | 				struct snd_ctl_elem_value *ucontrol) | 
 | { | 
 | 	u32 status1; | 
 | 	int err; | 
 |  | 
 | 	err = snd_rme_get_status1(kcontrol, &status1); | 
 | 	if (err < 0) | 
 | 		return err; | 
 | 	ucontrol->value.enumerated.item[0] = SND_RME_SPDIF_IF(status1); | 
 | 	return 0; | 
 | } | 
 |  | 
 | static int snd_rme_spdif_format_get(struct snd_kcontrol *kcontrol, | 
 | 				    struct snd_ctl_elem_value *ucontrol) | 
 | { | 
 | 	u32 status1; | 
 | 	int err; | 
 |  | 
 | 	err = snd_rme_get_status1(kcontrol, &status1); | 
 | 	if (err < 0) | 
 | 		return err; | 
 | 	ucontrol->value.enumerated.item[0] = SND_RME_SPDIF_FORMAT(status1); | 
 | 	return 0; | 
 | } | 
 |  | 
 | static int snd_rme_sync_source_get(struct snd_kcontrol *kcontrol, | 
 | 				   struct snd_ctl_elem_value *ucontrol) | 
 | { | 
 | 	u32 status1; | 
 | 	int err; | 
 |  | 
 | 	err = snd_rme_get_status1(kcontrol, &status1); | 
 | 	if (err < 0) | 
 | 		return err; | 
 | 	ucontrol->value.enumerated.item[0] = SND_RME_CLK_SYNC(status1); | 
 | 	return 0; | 
 | } | 
 |  | 
 | static int snd_rme_current_freq_get(struct snd_kcontrol *kcontrol, | 
 | 				    struct snd_ctl_elem_value *ucontrol) | 
 | { | 
 | 	struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol); | 
 | 	struct snd_usb_audio *chip = list->mixer->chip; | 
 | 	u32 status1; | 
 | 	const u64 num = 104857600000000ULL; | 
 | 	u32 den; | 
 | 	unsigned int freq; | 
 | 	int err; | 
 |  | 
 | 	err = snd_usb_lock_shutdown(chip); | 
 | 	if (err < 0) | 
 | 		return err; | 
 | 	err = snd_rme_read_value(chip, SND_RME_GET_STATUS1, &status1); | 
 | 	if (err < 0) | 
 | 		goto end; | 
 | 	err = snd_rme_read_value(chip, SND_RME_GET_CURRENT_FREQ, &den); | 
 | 	if (err < 0) | 
 | 		goto end; | 
 | 	freq = (den == 0) ? 0 : div64_u64(num, den); | 
 | 	freq <<= SND_RME_CLK_FREQMUL(status1); | 
 | 	ucontrol->value.integer.value[0] = freq; | 
 |  | 
 | end: | 
 | 	snd_usb_unlock_shutdown(chip); | 
 | 	return err; | 
 | } | 
 |  | 
 | static int snd_rme_rate_info(struct snd_kcontrol *kcontrol, | 
 | 			     struct snd_ctl_elem_info *uinfo) | 
 | { | 
 | 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | 
 | 	uinfo->count = 1; | 
 | 	switch (kcontrol->private_value) { | 
 | 	case SND_RME_DOMAIN_SYSTEM: | 
 | 		uinfo->value.integer.min = 32000; | 
 | 		uinfo->value.integer.max = 800000; | 
 | 		break; | 
 | 	case SND_RME_DOMAIN_AES: | 
 | 	case SND_RME_DOMAIN_SPDIF: | 
 | 	default: | 
 | 		uinfo->value.integer.min = 0; | 
 | 		uinfo->value.integer.max = 200000; | 
 | 	} | 
 | 	uinfo->value.integer.step = 0; | 
 | 	return 0; | 
 | } | 
 |  | 
 | static int snd_rme_sync_state_info(struct snd_kcontrol *kcontrol, | 
 | 				   struct snd_ctl_elem_info *uinfo) | 
 | { | 
 | 	static const char *const sync_states[] = { | 
 | 		"No Lock", "Lock", "Sync" | 
 | 	}; | 
 |  | 
 | 	return snd_ctl_enum_info(uinfo, 1, | 
 | 				 ARRAY_SIZE(sync_states), sync_states); | 
 | } | 
 |  | 
 | static int snd_rme_spdif_if_info(struct snd_kcontrol *kcontrol, | 
 | 				 struct snd_ctl_elem_info *uinfo) | 
 | { | 
 | 	static const char *const spdif_if[] = { | 
 | 		"Coaxial", "Optical" | 
 | 	}; | 
 |  | 
 | 	return snd_ctl_enum_info(uinfo, 1, | 
 | 				 ARRAY_SIZE(spdif_if), spdif_if); | 
 | } | 
 |  | 
 | static int snd_rme_spdif_format_info(struct snd_kcontrol *kcontrol, | 
 | 				     struct snd_ctl_elem_info *uinfo) | 
 | { | 
 | 	static const char *const optical_type[] = { | 
 | 		"Consumer", "Professional" | 
 | 	}; | 
 |  | 
 | 	return snd_ctl_enum_info(uinfo, 1, | 
 | 				 ARRAY_SIZE(optical_type), optical_type); | 
 | } | 
 |  | 
 | static int snd_rme_sync_source_info(struct snd_kcontrol *kcontrol, | 
 | 				    struct snd_ctl_elem_info *uinfo) | 
 | { | 
 | 	static const char *const sync_sources[] = { | 
 | 		"Internal", "AES", "SPDIF", "Internal" | 
 | 	}; | 
 |  | 
 | 	return snd_ctl_enum_info(uinfo, 1, | 
 | 				 ARRAY_SIZE(sync_sources), sync_sources); | 
 | } | 
 |  | 
 | static const struct snd_kcontrol_new snd_rme_controls[] = { | 
 | 	{ | 
 | 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 		.name = "AES Rate", | 
 | 		.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, | 
 | 		.info = snd_rme_rate_info, | 
 | 		.get = snd_rme_rate_get, | 
 | 		.private_value = SND_RME_DOMAIN_AES | 
 | 	}, | 
 | 	{ | 
 | 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 		.name = "AES Sync", | 
 | 		.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, | 
 | 		.info = snd_rme_sync_state_info, | 
 | 		.get = snd_rme_sync_state_get, | 
 | 		.private_value = SND_RME_DOMAIN_AES | 
 | 	}, | 
 | 	{ | 
 | 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 		.name = "SPDIF Rate", | 
 | 		.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, | 
 | 		.info = snd_rme_rate_info, | 
 | 		.get = snd_rme_rate_get, | 
 | 		.private_value = SND_RME_DOMAIN_SPDIF | 
 | 	}, | 
 | 	{ | 
 | 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 		.name = "SPDIF Sync", | 
 | 		.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, | 
 | 		.info = snd_rme_sync_state_info, | 
 | 		.get = snd_rme_sync_state_get, | 
 | 		.private_value = SND_RME_DOMAIN_SPDIF | 
 | 	}, | 
 | 	{ | 
 | 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 		.name = "SPDIF Interface", | 
 | 		.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, | 
 | 		.info = snd_rme_spdif_if_info, | 
 | 		.get = snd_rme_spdif_if_get, | 
 | 	}, | 
 | 	{ | 
 | 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 		.name = "SPDIF Format", | 
 | 		.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, | 
 | 		.info = snd_rme_spdif_format_info, | 
 | 		.get = snd_rme_spdif_format_get, | 
 | 	}, | 
 | 	{ | 
 | 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 		.name = "Sync Source", | 
 | 		.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, | 
 | 		.info = snd_rme_sync_source_info, | 
 | 		.get = snd_rme_sync_source_get | 
 | 	}, | 
 | 	{ | 
 | 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 		.name = "System Rate", | 
 | 		.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, | 
 | 		.info = snd_rme_rate_info, | 
 | 		.get = snd_rme_rate_get, | 
 | 		.private_value = SND_RME_DOMAIN_SYSTEM | 
 | 	}, | 
 | 	{ | 
 | 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 		.name = "Current Frequency", | 
 | 		.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, | 
 | 		.info = snd_rme_rate_info, | 
 | 		.get = snd_rme_current_freq_get | 
 | 	} | 
 | }; | 
 |  | 
 | static int snd_rme_controls_create(struct usb_mixer_interface *mixer) | 
 | { | 
 | 	int err, i; | 
 |  | 
 | 	for (i = 0; i < ARRAY_SIZE(snd_rme_controls); ++i) { | 
 | 		err = add_single_ctl_with_resume(mixer, 0, | 
 | 						 NULL, | 
 | 						 &snd_rme_controls[i], | 
 | 						 NULL); | 
 | 		if (err < 0) | 
 | 			return err; | 
 | 	} | 
 |  | 
 | 	return 0; | 
 | } | 
 |  | 
 | /* | 
 |  * RME Babyface Pro (FS) | 
 |  * | 
 |  * These devices exposes a couple of DSP functions via request to EP0. | 
 |  * Switches are available via control registers, while routing is controlled | 
 |  * by controlling the volume on each possible crossing point. | 
 |  * Volume control is linear, from -inf (dec. 0) to +6dB (dec. 65536) with | 
 |  * 0dB being at dec. 32768. | 
 |  */ | 
 | enum { | 
 | 	SND_BBFPRO_CTL_REG1 = 0, | 
 | 	SND_BBFPRO_CTL_REG2 | 
 | }; | 
 |  | 
 | #define SND_BBFPRO_CTL_REG_MASK 1 | 
 | #define SND_BBFPRO_CTL_IDX_MASK 0xff | 
 | #define SND_BBFPRO_CTL_IDX_SHIFT 1 | 
 | #define SND_BBFPRO_CTL_VAL_MASK 1 | 
 | #define SND_BBFPRO_CTL_VAL_SHIFT 9 | 
 | #define SND_BBFPRO_CTL_REG1_CLK_MASTER 0 | 
 | #define SND_BBFPRO_CTL_REG1_CLK_OPTICAL 1 | 
 | #define SND_BBFPRO_CTL_REG1_SPDIF_PRO 7 | 
 | #define SND_BBFPRO_CTL_REG1_SPDIF_EMPH 8 | 
 | #define SND_BBFPRO_CTL_REG1_SPDIF_OPTICAL 10 | 
 | #define SND_BBFPRO_CTL_REG2_48V_AN1 0 | 
 | #define SND_BBFPRO_CTL_REG2_48V_AN2 1 | 
 | #define SND_BBFPRO_CTL_REG2_SENS_IN3 2 | 
 | #define SND_BBFPRO_CTL_REG2_SENS_IN4 3 | 
 | #define SND_BBFPRO_CTL_REG2_PAD_AN1 4 | 
 | #define SND_BBFPRO_CTL_REG2_PAD_AN2 5 | 
 |  | 
 | #define SND_BBFPRO_MIXER_MAIN_OUT_CH_OFFSET 992 | 
 | #define SND_BBFPRO_MIXER_IDX_MASK 0x3ff | 
 | #define SND_BBFPRO_MIXER_VAL_MASK 0x3ffff | 
 | #define SND_BBFPRO_MIXER_VAL_SHIFT 9 | 
 | #define SND_BBFPRO_MIXER_VAL_MIN 0 // -inf | 
 | #define SND_BBFPRO_MIXER_VAL_MAX 65536 // +6dB | 
 |  | 
 | #define SND_BBFPRO_GAIN_CHANNEL_MASK 0x03 | 
 | #define SND_BBFPRO_GAIN_CHANNEL_SHIFT 7 | 
 | #define SND_BBFPRO_GAIN_VAL_MASK 0x7f | 
 | #define SND_BBFPRO_GAIN_VAL_MIN 0 | 
 | #define SND_BBFPRO_GAIN_VAL_MIC_MAX 65 | 
 | #define SND_BBFPRO_GAIN_VAL_LINE_MAX 18 // 9db in 0.5db incraments | 
 |  | 
 | #define SND_BBFPRO_USBREQ_CTL_REG1 0x10 | 
 | #define SND_BBFPRO_USBREQ_CTL_REG2 0x17 | 
 | #define SND_BBFPRO_USBREQ_GAIN 0x1a | 
 | #define SND_BBFPRO_USBREQ_MIXER 0x12 | 
 |  | 
 | static int snd_bbfpro_ctl_update(struct usb_mixer_interface *mixer, u8 reg, | 
 | 				 u8 index, u8 value) | 
 | { | 
 | 	int err; | 
 | 	u16 usb_req, usb_idx, usb_val; | 
 | 	struct snd_usb_audio *chip = mixer->chip; | 
 |  | 
 | 	err = snd_usb_lock_shutdown(chip); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	if (reg == SND_BBFPRO_CTL_REG1) { | 
 | 		usb_req = SND_BBFPRO_USBREQ_CTL_REG1; | 
 | 		if (index == SND_BBFPRO_CTL_REG1_CLK_OPTICAL) { | 
 | 			usb_idx = 3; | 
 | 			usb_val = value ? 3 : 0; | 
 | 		} else { | 
 | 			usb_idx = BIT(index); | 
 | 			usb_val = value ? usb_idx : 0; | 
 | 		} | 
 | 	} else { | 
 | 		usb_req = SND_BBFPRO_USBREQ_CTL_REG2; | 
 | 		usb_idx = BIT(index); | 
 | 		usb_val = value ? usb_idx : 0; | 
 | 	} | 
 |  | 
 | 	err = snd_usb_ctl_msg(chip->dev, | 
 | 			      usb_sndctrlpipe(chip->dev, 0), usb_req, | 
 | 			      USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | 
 | 			      usb_val, usb_idx, NULL, 0); | 
 |  | 
 | 	snd_usb_unlock_shutdown(chip); | 
 | 	return err; | 
 | } | 
 |  | 
 | static int snd_bbfpro_ctl_get(struct snd_kcontrol *kcontrol, | 
 | 			      struct snd_ctl_elem_value *ucontrol) | 
 | { | 
 | 	u8 reg, idx, val; | 
 | 	int pv; | 
 |  | 
 | 	pv = kcontrol->private_value; | 
 | 	reg = pv & SND_BBFPRO_CTL_REG_MASK; | 
 | 	idx = (pv >> SND_BBFPRO_CTL_IDX_SHIFT) & SND_BBFPRO_CTL_IDX_MASK; | 
 | 	val = kcontrol->private_value >> SND_BBFPRO_CTL_VAL_SHIFT; | 
 |  | 
 | 	if ((reg == SND_BBFPRO_CTL_REG1 && | 
 | 	     idx == SND_BBFPRO_CTL_REG1_CLK_OPTICAL) || | 
 | 	    (reg == SND_BBFPRO_CTL_REG2 && | 
 | 	    (idx == SND_BBFPRO_CTL_REG2_SENS_IN3 || | 
 | 	     idx == SND_BBFPRO_CTL_REG2_SENS_IN4))) { | 
 | 		ucontrol->value.enumerated.item[0] = val; | 
 | 	} else { | 
 | 		ucontrol->value.integer.value[0] = val; | 
 | 	} | 
 | 	return 0; | 
 | } | 
 |  | 
 | static int snd_bbfpro_ctl_info(struct snd_kcontrol *kcontrol, | 
 | 			       struct snd_ctl_elem_info *uinfo) | 
 | { | 
 | 	u8 reg, idx; | 
 | 	int pv; | 
 |  | 
 | 	pv = kcontrol->private_value; | 
 | 	reg = pv & SND_BBFPRO_CTL_REG_MASK; | 
 | 	idx = (pv >> SND_BBFPRO_CTL_IDX_SHIFT) & SND_BBFPRO_CTL_IDX_MASK; | 
 |  | 
 | 	if (reg == SND_BBFPRO_CTL_REG1 && | 
 | 	    idx == SND_BBFPRO_CTL_REG1_CLK_OPTICAL) { | 
 | 		static const char * const texts[2] = { | 
 | 			"AutoSync", | 
 | 			"Internal" | 
 | 		}; | 
 | 		return snd_ctl_enum_info(uinfo, 1, 2, texts); | 
 | 	} else if (reg == SND_BBFPRO_CTL_REG2 && | 
 | 		   (idx == SND_BBFPRO_CTL_REG2_SENS_IN3 || | 
 | 		    idx == SND_BBFPRO_CTL_REG2_SENS_IN4)) { | 
 | 		static const char * const texts[2] = { | 
 | 			"-10dBV", | 
 | 			"+4dBu" | 
 | 		}; | 
 | 		return snd_ctl_enum_info(uinfo, 1, 2, texts); | 
 | 	} | 
 |  | 
 | 	uinfo->count = 1; | 
 | 	uinfo->value.integer.min = 0; | 
 | 	uinfo->value.integer.max = 1; | 
 | 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | 
 | 	return 0; | 
 | } | 
 |  | 
 | static int snd_bbfpro_ctl_put(struct snd_kcontrol *kcontrol, | 
 | 			      struct snd_ctl_elem_value *ucontrol) | 
 | { | 
 | 	int err; | 
 | 	u8 reg, idx; | 
 | 	int old_value, pv, val; | 
 |  | 
 | 	struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol); | 
 | 	struct usb_mixer_interface *mixer = list->mixer; | 
 |  | 
 | 	pv = kcontrol->private_value; | 
 | 	reg = pv & SND_BBFPRO_CTL_REG_MASK; | 
 | 	idx = (pv >> SND_BBFPRO_CTL_IDX_SHIFT) & SND_BBFPRO_CTL_IDX_MASK; | 
 | 	old_value = (pv >> SND_BBFPRO_CTL_VAL_SHIFT) & SND_BBFPRO_CTL_VAL_MASK; | 
 |  | 
 | 	if ((reg == SND_BBFPRO_CTL_REG1 && | 
 | 	     idx == SND_BBFPRO_CTL_REG1_CLK_OPTICAL) || | 
 | 	    (reg == SND_BBFPRO_CTL_REG2 && | 
 | 	    (idx == SND_BBFPRO_CTL_REG2_SENS_IN3 || | 
 | 	     idx == SND_BBFPRO_CTL_REG2_SENS_IN4))) { | 
 | 		val = ucontrol->value.enumerated.item[0]; | 
 | 	} else { | 
 | 		val = ucontrol->value.integer.value[0]; | 
 | 	} | 
 |  | 
 | 	if (val > 1) | 
 | 		return -EINVAL; | 
 |  | 
 | 	if (val == old_value) | 
 | 		return 0; | 
 |  | 
 | 	kcontrol->private_value = reg | 
 | 		| ((idx & SND_BBFPRO_CTL_IDX_MASK) << SND_BBFPRO_CTL_IDX_SHIFT) | 
 | 		| ((val & SND_BBFPRO_CTL_VAL_MASK) << SND_BBFPRO_CTL_VAL_SHIFT); | 
 |  | 
 | 	err = snd_bbfpro_ctl_update(mixer, reg, idx, val); | 
 | 	return err < 0 ? err : 1; | 
 | } | 
 |  | 
 | static int snd_bbfpro_ctl_resume(struct usb_mixer_elem_list *list) | 
 | { | 
 | 	u8 reg, idx; | 
 | 	int value, pv; | 
 |  | 
 | 	pv = list->kctl->private_value; | 
 | 	reg = pv & SND_BBFPRO_CTL_REG_MASK; | 
 | 	idx = (pv >> SND_BBFPRO_CTL_IDX_SHIFT) & SND_BBFPRO_CTL_IDX_MASK; | 
 | 	value = (pv >> SND_BBFPRO_CTL_VAL_SHIFT) & SND_BBFPRO_CTL_VAL_MASK; | 
 |  | 
 | 	return snd_bbfpro_ctl_update(list->mixer, reg, idx, value); | 
 | } | 
 |  | 
 | static int snd_bbfpro_gain_update(struct usb_mixer_interface *mixer, | 
 | 				  u8 channel, u8 gain) | 
 | { | 
 | 	int err; | 
 | 	struct snd_usb_audio *chip = mixer->chip; | 
 |  | 
 | 	if (channel < 2) { | 
 | 		// XLR preamp: 3-bit fine, 5-bit coarse; special case >60 | 
 | 		if (gain < 60) | 
 | 			gain = ((gain % 3) << 5) | (gain / 3); | 
 | 		else | 
 | 			gain = ((gain % 6) << 5) | (60 / 3); | 
 | 	} | 
 |  | 
 | 	err = snd_usb_lock_shutdown(chip); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	err = snd_usb_ctl_msg(chip->dev, | 
 | 			      usb_sndctrlpipe(chip->dev, 0), | 
 | 			      SND_BBFPRO_USBREQ_GAIN, | 
 | 			      USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | 
 | 			      gain, channel, NULL, 0); | 
 |  | 
 | 	snd_usb_unlock_shutdown(chip); | 
 | 	return err; | 
 | } | 
 |  | 
 | static int snd_bbfpro_gain_get(struct snd_kcontrol *kcontrol, | 
 | 			       struct snd_ctl_elem_value *ucontrol) | 
 | { | 
 | 	int value = kcontrol->private_value & SND_BBFPRO_GAIN_VAL_MASK; | 
 |  | 
 | 	ucontrol->value.integer.value[0] = value; | 
 | 	return 0; | 
 | } | 
 |  | 
 | static int snd_bbfpro_gain_info(struct snd_kcontrol *kcontrol, | 
 | 				struct snd_ctl_elem_info *uinfo) | 
 | { | 
 | 	int pv, channel; | 
 |  | 
 | 	pv = kcontrol->private_value; | 
 | 	channel = (pv >> SND_BBFPRO_GAIN_CHANNEL_SHIFT) & | 
 | 		SND_BBFPRO_GAIN_CHANNEL_MASK; | 
 |  | 
 | 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | 
 | 	uinfo->count = 1; | 
 | 	uinfo->value.integer.min = SND_BBFPRO_GAIN_VAL_MIN; | 
 |  | 
 | 	if (channel < 2) | 
 | 		uinfo->value.integer.max = SND_BBFPRO_GAIN_VAL_MIC_MAX; | 
 | 	else | 
 | 		uinfo->value.integer.max = SND_BBFPRO_GAIN_VAL_LINE_MAX; | 
 |  | 
 | 	return 0; | 
 | } | 
 |  | 
 | static int snd_bbfpro_gain_put(struct snd_kcontrol *kcontrol, | 
 | 			       struct snd_ctl_elem_value *ucontrol) | 
 | { | 
 | 	int pv, channel, old_value, value, err; | 
 |  | 
 | 	struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol); | 
 | 	struct usb_mixer_interface *mixer = list->mixer; | 
 |  | 
 | 	pv = kcontrol->private_value; | 
 | 	channel = (pv >> SND_BBFPRO_GAIN_CHANNEL_SHIFT) & | 
 | 		SND_BBFPRO_GAIN_CHANNEL_MASK; | 
 | 	old_value = pv & SND_BBFPRO_GAIN_VAL_MASK; | 
 | 	value = ucontrol->value.integer.value[0]; | 
 |  | 
 | 	if (value < SND_BBFPRO_GAIN_VAL_MIN) | 
 | 		return -EINVAL; | 
 |  | 
 | 	if (channel < 2) { | 
 | 		if (value > SND_BBFPRO_GAIN_VAL_MIC_MAX) | 
 | 			return -EINVAL; | 
 | 	} else { | 
 | 		if (value > SND_BBFPRO_GAIN_VAL_LINE_MAX) | 
 | 			return -EINVAL; | 
 | 	} | 
 |  | 
 | 	if (value == old_value) | 
 | 		return 0; | 
 |  | 
 | 	err = snd_bbfpro_gain_update(mixer, channel, value); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	kcontrol->private_value = | 
 | 		(channel << SND_BBFPRO_GAIN_CHANNEL_SHIFT) | value; | 
 | 	return 1; | 
 | } | 
 |  | 
 | static int snd_bbfpro_gain_resume(struct usb_mixer_elem_list *list) | 
 | { | 
 | 	int pv, channel, value; | 
 | 	struct snd_kcontrol *kctl = list->kctl; | 
 |  | 
 | 	pv = kctl->private_value; | 
 | 	channel = (pv >> SND_BBFPRO_GAIN_CHANNEL_SHIFT) & | 
 | 		SND_BBFPRO_GAIN_CHANNEL_MASK; | 
 | 	value = pv & SND_BBFPRO_GAIN_VAL_MASK; | 
 |  | 
 | 	return snd_bbfpro_gain_update(list->mixer, channel, value); | 
 | } | 
 |  | 
 | static int snd_bbfpro_vol_update(struct usb_mixer_interface *mixer, u16 index, | 
 | 				 u32 value) | 
 | { | 
 | 	struct snd_usb_audio *chip = mixer->chip; | 
 | 	int err; | 
 | 	u16 idx; | 
 | 	u16 usb_idx, usb_val; | 
 | 	u32 v; | 
 |  | 
 | 	err = snd_usb_lock_shutdown(chip); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	idx = index & SND_BBFPRO_MIXER_IDX_MASK; | 
 | 	// 18 bit linear volume, split so 2 bits end up in index. | 
 | 	v = value & SND_BBFPRO_MIXER_VAL_MASK; | 
 | 	usb_idx = idx | (v & 0x3) << 14; | 
 | 	usb_val = (v >> 2) & 0xffff; | 
 |  | 
 | 	err = snd_usb_ctl_msg(chip->dev, | 
 | 			      usb_sndctrlpipe(chip->dev, 0), | 
 | 			      SND_BBFPRO_USBREQ_MIXER, | 
 | 			      USB_DIR_OUT | USB_TYPE_VENDOR | | 
 | 			      USB_RECIP_DEVICE, | 
 | 			      usb_val, usb_idx, NULL, 0); | 
 |  | 
 | 	snd_usb_unlock_shutdown(chip); | 
 | 	return err; | 
 | } | 
 |  | 
 | static int snd_bbfpro_vol_get(struct snd_kcontrol *kcontrol, | 
 | 			      struct snd_ctl_elem_value *ucontrol) | 
 | { | 
 | 	ucontrol->value.integer.value[0] = | 
 | 		kcontrol->private_value >> SND_BBFPRO_MIXER_VAL_SHIFT; | 
 | 	return 0; | 
 | } | 
 |  | 
 | static int snd_bbfpro_vol_info(struct snd_kcontrol *kcontrol, | 
 | 			       struct snd_ctl_elem_info *uinfo) | 
 | { | 
 | 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | 
 | 	uinfo->count = 1; | 
 | 	uinfo->value.integer.min = SND_BBFPRO_MIXER_VAL_MIN; | 
 | 	uinfo->value.integer.max = SND_BBFPRO_MIXER_VAL_MAX; | 
 | 	return 0; | 
 | } | 
 |  | 
 | static int snd_bbfpro_vol_put(struct snd_kcontrol *kcontrol, | 
 | 			      struct snd_ctl_elem_value *ucontrol) | 
 | { | 
 | 	int err; | 
 | 	u16 idx; | 
 | 	u32 new_val, old_value, uvalue; | 
 | 	struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol); | 
 | 	struct usb_mixer_interface *mixer = list->mixer; | 
 |  | 
 | 	uvalue = ucontrol->value.integer.value[0]; | 
 | 	idx = kcontrol->private_value & SND_BBFPRO_MIXER_IDX_MASK; | 
 | 	old_value = kcontrol->private_value >> SND_BBFPRO_MIXER_VAL_SHIFT; | 
 |  | 
 | 	if (uvalue > SND_BBFPRO_MIXER_VAL_MAX) | 
 | 		return -EINVAL; | 
 |  | 
 | 	if (uvalue == old_value) | 
 | 		return 0; | 
 |  | 
 | 	new_val = uvalue & SND_BBFPRO_MIXER_VAL_MASK; | 
 |  | 
 | 	kcontrol->private_value = idx | 
 | 		| (new_val << SND_BBFPRO_MIXER_VAL_SHIFT); | 
 |  | 
 | 	err = snd_bbfpro_vol_update(mixer, idx, new_val); | 
 | 	return err < 0 ? err : 1; | 
 | } | 
 |  | 
 | static int snd_bbfpro_vol_resume(struct usb_mixer_elem_list *list) | 
 | { | 
 | 	int pv = list->kctl->private_value; | 
 | 	u16 idx = pv & SND_BBFPRO_MIXER_IDX_MASK; | 
 | 	u32 val = (pv >> SND_BBFPRO_MIXER_VAL_SHIFT) | 
 | 		& SND_BBFPRO_MIXER_VAL_MASK; | 
 | 	return snd_bbfpro_vol_update(list->mixer, idx, val); | 
 | } | 
 |  | 
 | // Predfine elements | 
 | static const struct snd_kcontrol_new snd_bbfpro_ctl_control = { | 
 | 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | 
 | 	.index = 0, | 
 | 	.info = snd_bbfpro_ctl_info, | 
 | 	.get = snd_bbfpro_ctl_get, | 
 | 	.put = snd_bbfpro_ctl_put | 
 | }; | 
 |  | 
 | static const struct snd_kcontrol_new snd_bbfpro_gain_control = { | 
 | 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | 
 | 	.index = 0, | 
 | 	.info = snd_bbfpro_gain_info, | 
 | 	.get = snd_bbfpro_gain_get, | 
 | 	.put = snd_bbfpro_gain_put | 
 | }; | 
 |  | 
 | static const struct snd_kcontrol_new snd_bbfpro_vol_control = { | 
 | 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | 
 | 	.index = 0, | 
 | 	.info = snd_bbfpro_vol_info, | 
 | 	.get = snd_bbfpro_vol_get, | 
 | 	.put = snd_bbfpro_vol_put | 
 | }; | 
 |  | 
 | static int snd_bbfpro_ctl_add(struct usb_mixer_interface *mixer, u8 reg, | 
 | 			      u8 index, char *name) | 
 | { | 
 | 	struct snd_kcontrol_new knew = snd_bbfpro_ctl_control; | 
 |  | 
 | 	knew.name = name; | 
 | 	knew.private_value = (reg & SND_BBFPRO_CTL_REG_MASK) | 
 | 		| ((index & SND_BBFPRO_CTL_IDX_MASK) | 
 | 			<< SND_BBFPRO_CTL_IDX_SHIFT); | 
 |  | 
 | 	return add_single_ctl_with_resume(mixer, 0, snd_bbfpro_ctl_resume, | 
 | 		&knew, NULL); | 
 | } | 
 |  | 
 | static int snd_bbfpro_gain_add(struct usb_mixer_interface *mixer, u8 channel, | 
 | 			       char *name) | 
 | { | 
 | 	struct snd_kcontrol_new knew = snd_bbfpro_gain_control; | 
 |  | 
 | 	knew.name = name; | 
 | 	knew.private_value = channel << SND_BBFPRO_GAIN_CHANNEL_SHIFT; | 
 |  | 
 | 	return add_single_ctl_with_resume(mixer, 0, snd_bbfpro_gain_resume, | 
 | 		&knew, NULL); | 
 | } | 
 |  | 
 | static int snd_bbfpro_vol_add(struct usb_mixer_interface *mixer, u16 index, | 
 | 			      char *name) | 
 | { | 
 | 	struct snd_kcontrol_new knew = snd_bbfpro_vol_control; | 
 |  | 
 | 	knew.name = name; | 
 | 	knew.private_value = index & SND_BBFPRO_MIXER_IDX_MASK; | 
 |  | 
 | 	return add_single_ctl_with_resume(mixer, 0, snd_bbfpro_vol_resume, | 
 | 		&knew, NULL); | 
 | } | 
 |  | 
 | static int snd_bbfpro_controls_create(struct usb_mixer_interface *mixer) | 
 | { | 
 | 	int err, i, o; | 
 | 	char name[48]; | 
 |  | 
 | 	static const char * const input[] = { | 
 | 		"AN1", "AN2", "IN3", "IN4", "AS1", "AS2", "ADAT3", | 
 | 		"ADAT4", "ADAT5", "ADAT6", "ADAT7", "ADAT8"}; | 
 |  | 
 | 	static const char * const output[] = { | 
 | 		"AN1", "AN2", "PH3", "PH4", "AS1", "AS2", "ADAT3", "ADAT4", | 
 | 		"ADAT5", "ADAT6", "ADAT7", "ADAT8"}; | 
 |  | 
 | 	for (o = 0 ; o < 12 ; ++o) { | 
 | 		for (i = 0 ; i < 12 ; ++i) { | 
 | 			// Line routing | 
 | 			snprintf(name, sizeof(name), | 
 | 				 "%s-%s-%s Playback Volume", | 
 | 				 (i < 2 ? "Mic" : "Line"), | 
 | 				 input[i], output[o]); | 
 | 			err = snd_bbfpro_vol_add(mixer, (26 * o + i), name); | 
 | 			if (err < 0) | 
 | 				return err; | 
 |  | 
 | 			// PCM routing... yes, it is output remapping | 
 | 			snprintf(name, sizeof(name), | 
 | 				 "PCM-%s-%s Playback Volume", | 
 | 				 output[i], output[o]); | 
 | 			err = snd_bbfpro_vol_add(mixer, (26 * o + 12 + i), | 
 | 						 name); | 
 | 			if (err < 0) | 
 | 				return err; | 
 | 		} | 
 | 	} | 
 |  | 
 | 	// Main out volume | 
 | 	for (i = 0 ; i < 12 ; ++i) { | 
 | 		snprintf(name, sizeof(name), "Main-Out %s", output[i]); | 
 | 		// Main outs are offset to 992 | 
 | 		err = snd_bbfpro_vol_add(mixer, | 
 | 					 i + SND_BBFPRO_MIXER_MAIN_OUT_CH_OFFSET, | 
 | 					 name); | 
 | 		if (err < 0) | 
 | 			return err; | 
 | 	} | 
 |  | 
 | 	// Input gain | 
 | 	for (i = 0 ; i < 4 ; ++i) { | 
 | 		if (i < 2) | 
 | 			snprintf(name, sizeof(name), "Mic-%s Gain", input[i]); | 
 | 		else | 
 | 			snprintf(name, sizeof(name), "Line-%s Gain", input[i]); | 
 |  | 
 | 		err = snd_bbfpro_gain_add(mixer, i, name); | 
 | 		if (err < 0) | 
 | 			return err; | 
 | 	} | 
 |  | 
 | 	// Control Reg 1 | 
 | 	err = snd_bbfpro_ctl_add(mixer, SND_BBFPRO_CTL_REG1, | 
 | 				 SND_BBFPRO_CTL_REG1_CLK_OPTICAL, | 
 | 				 "Sample Clock Source"); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	err = snd_bbfpro_ctl_add(mixer, SND_BBFPRO_CTL_REG1, | 
 | 				 SND_BBFPRO_CTL_REG1_SPDIF_PRO, | 
 | 				 "IEC958 Pro Mask"); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	err = snd_bbfpro_ctl_add(mixer, SND_BBFPRO_CTL_REG1, | 
 | 				 SND_BBFPRO_CTL_REG1_SPDIF_EMPH, | 
 | 				 "IEC958 Emphasis"); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	err = snd_bbfpro_ctl_add(mixer, SND_BBFPRO_CTL_REG1, | 
 | 				 SND_BBFPRO_CTL_REG1_SPDIF_OPTICAL, | 
 | 				 "IEC958 Switch"); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	// Control Reg 2 | 
 | 	err = snd_bbfpro_ctl_add(mixer, SND_BBFPRO_CTL_REG2, | 
 | 				 SND_BBFPRO_CTL_REG2_48V_AN1, | 
 | 				 "Mic-AN1 48V"); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	err = snd_bbfpro_ctl_add(mixer, SND_BBFPRO_CTL_REG2, | 
 | 				 SND_BBFPRO_CTL_REG2_48V_AN2, | 
 | 				 "Mic-AN2 48V"); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	err = snd_bbfpro_ctl_add(mixer, SND_BBFPRO_CTL_REG2, | 
 | 				 SND_BBFPRO_CTL_REG2_SENS_IN3, | 
 | 				 "Line-IN3 Sens."); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	err = snd_bbfpro_ctl_add(mixer, SND_BBFPRO_CTL_REG2, | 
 | 				 SND_BBFPRO_CTL_REG2_SENS_IN4, | 
 | 				 "Line-IN4 Sens."); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	err = snd_bbfpro_ctl_add(mixer, SND_BBFPRO_CTL_REG2, | 
 | 				 SND_BBFPRO_CTL_REG2_PAD_AN1, | 
 | 				 "Mic-AN1 PAD"); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	err = snd_bbfpro_ctl_add(mixer, SND_BBFPRO_CTL_REG2, | 
 | 				 SND_BBFPRO_CTL_REG2_PAD_AN2, | 
 | 				 "Mic-AN2 PAD"); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	return 0; | 
 | } | 
 |  | 
 | /* | 
 |  * RME Digiface USB | 
 |  */ | 
 |  | 
 | #define RME_DIGIFACE_READ_STATUS 17 | 
 | #define RME_DIGIFACE_STATUS_REG0L 0 | 
 | #define RME_DIGIFACE_STATUS_REG0H 1 | 
 | #define RME_DIGIFACE_STATUS_REG1L 2 | 
 | #define RME_DIGIFACE_STATUS_REG1H 3 | 
 | #define RME_DIGIFACE_STATUS_REG2L 4 | 
 | #define RME_DIGIFACE_STATUS_REG2H 5 | 
 | #define RME_DIGIFACE_STATUS_REG3L 6 | 
 | #define RME_DIGIFACE_STATUS_REG3H 7 | 
 |  | 
 | #define RME_DIGIFACE_CTL_REG1 16 | 
 | #define RME_DIGIFACE_CTL_REG2 18 | 
 |  | 
 | /* Reg is overloaded, 0-7 for status halfwords or 16 or 18 for control registers */ | 
 | #define RME_DIGIFACE_REGISTER(reg, mask) (((reg) << 16) | (mask)) | 
 | #define RME_DIGIFACE_INVERT BIT(31) | 
 |  | 
 | /* Nonconst helpers */ | 
 | #define field_get(_mask, _reg) (((_reg) & (_mask)) >> (ffs(_mask) - 1)) | 
 | #define field_prep(_mask, _val) (((_val) << (ffs(_mask) - 1)) & (_mask)) | 
 |  | 
 | static int snd_rme_digiface_write_reg(struct snd_kcontrol *kcontrol, int item, u16 mask, u16 val) | 
 | { | 
 | 	struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol); | 
 | 	struct snd_usb_audio *chip = list->mixer->chip; | 
 | 	struct usb_device *dev = chip->dev; | 
 | 	int err; | 
 |  | 
 | 	err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), | 
 | 			      item, | 
 | 			      USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | 
 | 			      val, mask, NULL, 0); | 
 | 	if (err < 0) | 
 | 		dev_err(&dev->dev, | 
 | 			"unable to issue control set request %d (ret = %d)", | 
 | 			item, err); | 
 | 	return err; | 
 | } | 
 |  | 
 | static int snd_rme_digiface_read_status(struct snd_kcontrol *kcontrol, u32 status[4]) | 
 | { | 
 | 	struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol); | 
 | 	struct snd_usb_audio *chip = list->mixer->chip; | 
 | 	struct usb_device *dev = chip->dev; | 
 | 	__le32 buf[4]; | 
 | 	int err; | 
 |  | 
 | 	err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), | 
 | 			      RME_DIGIFACE_READ_STATUS, | 
 | 			      USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | 
 | 			      0, 0, | 
 | 			      buf, sizeof(buf)); | 
 | 	if (err < 0) { | 
 | 		dev_err(&dev->dev, | 
 | 			"unable to issue status read request (ret = %d)", | 
 | 			err); | 
 | 	} else { | 
 | 		for (int i = 0; i < ARRAY_SIZE(buf); i++) | 
 | 			status[i] = le32_to_cpu(buf[i]); | 
 | 	} | 
 | 	return err; | 
 | } | 
 |  | 
 | static int snd_rme_digiface_get_status_val(struct snd_kcontrol *kcontrol) | 
 | { | 
 | 	int err; | 
 | 	u32 status[4]; | 
 | 	bool invert = kcontrol->private_value & RME_DIGIFACE_INVERT; | 
 | 	u8 reg = (kcontrol->private_value >> 16) & 0xff; | 
 | 	u16 mask = kcontrol->private_value & 0xffff; | 
 | 	u16 val; | 
 |  | 
 | 	err = snd_rme_digiface_read_status(kcontrol, status); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	switch (reg) { | 
 | 	/* Status register halfwords */ | 
 | 	case RME_DIGIFACE_STATUS_REG0L ... RME_DIGIFACE_STATUS_REG3H: | 
 | 		break; | 
 | 	case RME_DIGIFACE_CTL_REG1: /* Control register 1, present in halfword 3L */ | 
 | 		reg = RME_DIGIFACE_STATUS_REG3L; | 
 | 		break; | 
 | 	case RME_DIGIFACE_CTL_REG2: /* Control register 2, present in halfword 3H */ | 
 | 		reg = RME_DIGIFACE_STATUS_REG3H; | 
 | 		break; | 
 | 	default: | 
 | 		return -EINVAL; | 
 | 	} | 
 |  | 
 | 	if (reg & 1) | 
 | 		val = status[reg >> 1] >> 16; | 
 | 	else | 
 | 		val = status[reg >> 1] & 0xffff; | 
 |  | 
 | 	if (invert) | 
 | 		val ^= mask; | 
 |  | 
 | 	return field_get(mask, val); | 
 | } | 
 |  | 
 | static int snd_rme_digiface_rate_get(struct snd_kcontrol *kcontrol, | 
 | 				     struct snd_ctl_elem_value *ucontrol) | 
 | { | 
 | 	int freq = snd_rme_digiface_get_status_val(kcontrol); | 
 |  | 
 | 	if (freq < 0) | 
 | 		return freq; | 
 | 	if (freq >= ARRAY_SIZE(snd_rme_rate_table)) | 
 | 		return -EIO; | 
 |  | 
 | 	ucontrol->value.integer.value[0] = snd_rme_rate_table[freq]; | 
 | 	return 0; | 
 | } | 
 |  | 
 | static int snd_rme_digiface_enum_get(struct snd_kcontrol *kcontrol, | 
 | 				     struct snd_ctl_elem_value *ucontrol) | 
 | { | 
 | 	int val = snd_rme_digiface_get_status_val(kcontrol); | 
 |  | 
 | 	if (val < 0) | 
 | 		return val; | 
 |  | 
 | 	ucontrol->value.enumerated.item[0] = val; | 
 | 	return 0; | 
 | } | 
 |  | 
 | static int snd_rme_digiface_enum_put(struct snd_kcontrol *kcontrol, | 
 | 				     struct snd_ctl_elem_value *ucontrol) | 
 | { | 
 | 	bool invert = kcontrol->private_value & RME_DIGIFACE_INVERT; | 
 | 	u8 reg = (kcontrol->private_value >> 16) & 0xff; | 
 | 	u16 mask = kcontrol->private_value & 0xffff; | 
 | 	u16 val = field_prep(mask, ucontrol->value.enumerated.item[0]); | 
 |  | 
 | 	if (invert) | 
 | 		val ^= mask; | 
 |  | 
 | 	return snd_rme_digiface_write_reg(kcontrol, reg, mask, val); | 
 | } | 
 |  | 
 | static int snd_rme_digiface_current_sync_get(struct snd_kcontrol *kcontrol, | 
 | 					     struct snd_ctl_elem_value *ucontrol) | 
 | { | 
 | 	int ret = snd_rme_digiface_enum_get(kcontrol, ucontrol); | 
 |  | 
 | 	/* 7 means internal for current sync */ | 
 | 	if (ucontrol->value.enumerated.item[0] == 7) | 
 | 		ucontrol->value.enumerated.item[0] = 0; | 
 |  | 
 | 	return ret; | 
 | } | 
 |  | 
 | static int snd_rme_digiface_sync_state_get(struct snd_kcontrol *kcontrol, | 
 | 					   struct snd_ctl_elem_value *ucontrol) | 
 | { | 
 | 	u32 status[4]; | 
 | 	int err; | 
 | 	bool valid, sync; | 
 |  | 
 | 	err = snd_rme_digiface_read_status(kcontrol, status); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	valid = status[0] & BIT(kcontrol->private_value); | 
 | 	sync = status[0] & BIT(5 + kcontrol->private_value); | 
 |  | 
 | 	if (!valid) | 
 | 		ucontrol->value.enumerated.item[0] = SND_RME_CLOCK_NOLOCK; | 
 | 	else if (!sync) | 
 | 		ucontrol->value.enumerated.item[0] = SND_RME_CLOCK_LOCK; | 
 | 	else | 
 | 		ucontrol->value.enumerated.item[0] = SND_RME_CLOCK_SYNC; | 
 | 	return 0; | 
 | } | 
 |  | 
 | static int snd_rme_digiface_format_info(struct snd_kcontrol *kcontrol, | 
 | 					struct snd_ctl_elem_info *uinfo) | 
 | { | 
 | 	static const char *const format[] = { | 
 | 		"ADAT", "S/PDIF" | 
 | 	}; | 
 |  | 
 | 	return snd_ctl_enum_info(uinfo, 1, | 
 | 				 ARRAY_SIZE(format), format); | 
 | } | 
 |  | 
 | static int snd_rme_digiface_sync_source_info(struct snd_kcontrol *kcontrol, | 
 | 					     struct snd_ctl_elem_info *uinfo) | 
 | { | 
 | 	static const char *const sync_sources[] = { | 
 | 		"Internal", "Input 1", "Input 2", "Input 3", "Input 4" | 
 | 	}; | 
 |  | 
 | 	return snd_ctl_enum_info(uinfo, 1, | 
 | 				 ARRAY_SIZE(sync_sources), sync_sources); | 
 | } | 
 |  | 
 | static int snd_rme_digiface_rate_info(struct snd_kcontrol *kcontrol, | 
 | 				      struct snd_ctl_elem_info *uinfo) | 
 | { | 
 | 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | 
 | 	uinfo->count = 1; | 
 | 	uinfo->value.integer.min = 0; | 
 | 	uinfo->value.integer.max = 200000; | 
 | 	uinfo->value.integer.step = 0; | 
 | 	return 0; | 
 | } | 
 |  | 
 | static const struct snd_kcontrol_new snd_rme_digiface_controls[] = { | 
 | 	{ | 
 | 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 		.name = "Input 1 Sync", | 
 | 		.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, | 
 | 		.info = snd_rme_sync_state_info, | 
 | 		.get = snd_rme_digiface_sync_state_get, | 
 | 		.private_value = 0, | 
 | 	}, | 
 | 	{ | 
 | 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 		.name = "Input 1 Format", | 
 | 		.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, | 
 | 		.info = snd_rme_digiface_format_info, | 
 | 		.get = snd_rme_digiface_enum_get, | 
 | 		.private_value = RME_DIGIFACE_REGISTER(RME_DIGIFACE_STATUS_REG0H, BIT(0)) | | 
 | 			RME_DIGIFACE_INVERT, | 
 | 	}, | 
 | 	{ | 
 | 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 		.name = "Input 1 Rate", | 
 | 		.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, | 
 | 		.info = snd_rme_digiface_rate_info, | 
 | 		.get = snd_rme_digiface_rate_get, | 
 | 		.private_value = RME_DIGIFACE_REGISTER(RME_DIGIFACE_STATUS_REG1L, GENMASK(3, 0)), | 
 | 	}, | 
 | 	{ | 
 | 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 		.name = "Input 2 Sync", | 
 | 		.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, | 
 | 		.info = snd_rme_sync_state_info, | 
 | 		.get = snd_rme_digiface_sync_state_get, | 
 | 		.private_value = 1, | 
 | 	}, | 
 | 	{ | 
 | 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 		.name = "Input 2 Format", | 
 | 		.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, | 
 | 		.info = snd_rme_digiface_format_info, | 
 | 		.get = snd_rme_digiface_enum_get, | 
 | 		.private_value = RME_DIGIFACE_REGISTER(RME_DIGIFACE_STATUS_REG0L, BIT(13)) | | 
 | 			RME_DIGIFACE_INVERT, | 
 | 	}, | 
 | 	{ | 
 | 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 		.name = "Input 2 Rate", | 
 | 		.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, | 
 | 		.info = snd_rme_digiface_rate_info, | 
 | 		.get = snd_rme_digiface_rate_get, | 
 | 		.private_value = RME_DIGIFACE_REGISTER(RME_DIGIFACE_STATUS_REG1L, GENMASK(7, 4)), | 
 | 	}, | 
 | 	{ | 
 | 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 		.name = "Input 3 Sync", | 
 | 		.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, | 
 | 		.info = snd_rme_sync_state_info, | 
 | 		.get = snd_rme_digiface_sync_state_get, | 
 | 		.private_value = 2, | 
 | 	}, | 
 | 	{ | 
 | 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 		.name = "Input 3 Format", | 
 | 		.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, | 
 | 		.info = snd_rme_digiface_format_info, | 
 | 		.get = snd_rme_digiface_enum_get, | 
 | 		.private_value = RME_DIGIFACE_REGISTER(RME_DIGIFACE_STATUS_REG0L, BIT(14)) | | 
 | 			RME_DIGIFACE_INVERT, | 
 | 	}, | 
 | 	{ | 
 | 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 		.name = "Input 3 Rate", | 
 | 		.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, | 
 | 		.info = snd_rme_digiface_rate_info, | 
 | 		.get = snd_rme_digiface_rate_get, | 
 | 		.private_value = RME_DIGIFACE_REGISTER(RME_DIGIFACE_STATUS_REG1L, GENMASK(11, 8)), | 
 | 	}, | 
 | 	{ | 
 | 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 		.name = "Input 4 Sync", | 
 | 		.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, | 
 | 		.info = snd_rme_sync_state_info, | 
 | 		.get = snd_rme_digiface_sync_state_get, | 
 | 		.private_value = 3, | 
 | 	}, | 
 | 	{ | 
 | 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 		.name = "Input 4 Format", | 
 | 		.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, | 
 | 		.info = snd_rme_digiface_format_info, | 
 | 		.get = snd_rme_digiface_enum_get, | 
 | 		.private_value = RME_DIGIFACE_REGISTER(RME_DIGIFACE_STATUS_REG0L, GENMASK(15, 12)) | | 
 | 			RME_DIGIFACE_INVERT, | 
 | 	}, | 
 | 	{ | 
 | 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 		.name = "Input 4 Rate", | 
 | 		.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, | 
 | 		.info = snd_rme_digiface_rate_info, | 
 | 		.get = snd_rme_digiface_rate_get, | 
 | 		.private_value = RME_DIGIFACE_REGISTER(RME_DIGIFACE_STATUS_REG1L, GENMASK(3, 0)), | 
 | 	}, | 
 | 	{ | 
 | 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 		.name = "Output 1 Format", | 
 | 		.access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | 
 | 		.info = snd_rme_digiface_format_info, | 
 | 		.get = snd_rme_digiface_enum_get, | 
 | 		.put = snd_rme_digiface_enum_put, | 
 | 		.private_value = RME_DIGIFACE_REGISTER(RME_DIGIFACE_CTL_REG2, BIT(0)), | 
 | 	}, | 
 | 	{ | 
 | 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 		.name = "Output 2 Format", | 
 | 		.access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | 
 | 		.info = snd_rme_digiface_format_info, | 
 | 		.get = snd_rme_digiface_enum_get, | 
 | 		.put = snd_rme_digiface_enum_put, | 
 | 		.private_value = RME_DIGIFACE_REGISTER(RME_DIGIFACE_CTL_REG2, BIT(1)), | 
 | 	}, | 
 | 	{ | 
 | 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 		.name = "Output 3 Format", | 
 | 		.access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | 
 | 		.info = snd_rme_digiface_format_info, | 
 | 		.get = snd_rme_digiface_enum_get, | 
 | 		.put = snd_rme_digiface_enum_put, | 
 | 		.private_value = RME_DIGIFACE_REGISTER(RME_DIGIFACE_CTL_REG2, BIT(3)), | 
 | 	}, | 
 | 	{ | 
 | 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 		.name = "Output 4 Format", | 
 | 		.access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | 
 | 		.info = snd_rme_digiface_format_info, | 
 | 		.get = snd_rme_digiface_enum_get, | 
 | 		.put = snd_rme_digiface_enum_put, | 
 | 		.private_value = RME_DIGIFACE_REGISTER(RME_DIGIFACE_CTL_REG2, BIT(4)), | 
 | 	}, | 
 | 	{ | 
 | 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 		.name = "Sync Source", | 
 | 		.access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | 
 | 		.info = snd_rme_digiface_sync_source_info, | 
 | 		.get = snd_rme_digiface_enum_get, | 
 | 		.put = snd_rme_digiface_enum_put, | 
 | 		.private_value = RME_DIGIFACE_REGISTER(RME_DIGIFACE_CTL_REG1, GENMASK(2, 0)), | 
 | 	}, | 
 | 	{ | 
 | 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 		.name = "Current Sync Source", | 
 | 		.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, | 
 | 		.info = snd_rme_digiface_sync_source_info, | 
 | 		.get = snd_rme_digiface_current_sync_get, | 
 | 		.private_value = RME_DIGIFACE_REGISTER(RME_DIGIFACE_STATUS_REG0L, GENMASK(12, 10)), | 
 | 	}, | 
 | 	{ | 
 | 		/* | 
 | 		 * This is writeable, but it is only set by the PCM rate. | 
 | 		 * Mixer apps currently need to drive the mixer using raw USB requests, | 
 | 		 * so they can also change this that way to configure the rate for | 
 | 		 * stand-alone operation when the PCM is closed. | 
 | 		 */ | 
 | 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 		.name = "System Rate", | 
 | 		.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, | 
 | 		.info = snd_rme_rate_info, | 
 | 		.get = snd_rme_digiface_rate_get, | 
 | 		.private_value = RME_DIGIFACE_REGISTER(RME_DIGIFACE_CTL_REG1, GENMASK(6, 3)), | 
 | 	}, | 
 | 	{ | 
 | 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 		.name = "Current Rate", | 
 | 		.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, | 
 | 		.info = snd_rme_rate_info, | 
 | 		.get = snd_rme_digiface_rate_get, | 
 | 		.private_value = RME_DIGIFACE_REGISTER(RME_DIGIFACE_STATUS_REG1H, GENMASK(7, 4)), | 
 | 	} | 
 | }; | 
 |  | 
 | static int snd_rme_digiface_controls_create(struct usb_mixer_interface *mixer) | 
 | { | 
 | 	int err, i; | 
 |  | 
 | 	for (i = 0; i < ARRAY_SIZE(snd_rme_digiface_controls); ++i) { | 
 | 		err = add_single_ctl_with_resume(mixer, 0, | 
 | 						 NULL, | 
 | 						 &snd_rme_digiface_controls[i], | 
 | 						 NULL); | 
 | 		if (err < 0) | 
 | 			return err; | 
 | 	} | 
 |  | 
 | 	return 0; | 
 | } | 
 |  | 
 | /* | 
 |  * Pioneer DJ / AlphaTheta DJM Mixers | 
 |  * | 
 |  * These devices generally have options for soft-switching the playback and | 
 |  * capture sources in addition to the recording level. Although different | 
 |  * devices have different configurations, there seems to be canonical values | 
 |  * for specific capture/playback types:  See the definitions of these below. | 
 |  * | 
 |  * The wValue is masked with the stereo channel number. e.g. Setting Ch2 to | 
 |  * capture phono would be 0x0203. Capture, playback and capture level have | 
 |  * different wIndexes. | 
 |  */ | 
 |  | 
 | // Capture types | 
 | #define SND_DJM_CAP_LINE	0x00 | 
 | #define SND_DJM_CAP_CDLINE	0x01 | 
 | #define SND_DJM_CAP_DIGITAL	0x02 | 
 | #define SND_DJM_CAP_PHONO	0x03 | 
 | #define SND_DJM_CAP_PREFADER	0x05 | 
 | #define SND_DJM_CAP_PFADER	0x06 | 
 | #define SND_DJM_CAP_XFADERA	0x07 | 
 | #define SND_DJM_CAP_XFADERB	0x08 | 
 | #define SND_DJM_CAP_MIC		0x09 | 
 | #define SND_DJM_CAP_AUX		0x0d | 
 | #define SND_DJM_CAP_RECOUT	0x0a | 
 | #define SND_DJM_CAP_RECOUT_NOMIC	0x0e | 
 | #define SND_DJM_CAP_NONE	0x0f | 
 | #define SND_DJM_CAP_FXSEND	0x10 | 
 | #define SND_DJM_CAP_CH1PFADER	0x11 | 
 | #define SND_DJM_CAP_CH2PFADER	0x12 | 
 | #define SND_DJM_CAP_CH3PFADER	0x13 | 
 | #define SND_DJM_CAP_CH4PFADER	0x14 | 
 | #define SND_DJM_CAP_EXT1SEND	0x21 | 
 | #define SND_DJM_CAP_EXT2SEND	0x22 | 
 | #define SND_DJM_CAP_CH1PREFADER	0x31 | 
 | #define SND_DJM_CAP_CH2PREFADER	0x32 | 
 | #define SND_DJM_CAP_CH3PREFADER	0x33 | 
 | #define SND_DJM_CAP_CH4PREFADER	0x34 | 
 |  | 
 | // Playback types | 
 | #define SND_DJM_PB_CH1		0x00 | 
 | #define SND_DJM_PB_CH2		0x01 | 
 | #define SND_DJM_PB_AUX		0x04 | 
 |  | 
 | #define SND_DJM_WINDEX_CAP	0x8002 | 
 | #define SND_DJM_WINDEX_CAPLVL	0x8003 | 
 | #define SND_DJM_WINDEX_PB	0x8016 | 
 |  | 
 | // kcontrol->private_value layout | 
 | #define SND_DJM_VALUE_MASK	0x0000ffff | 
 | #define SND_DJM_GROUP_MASK	0x00ff0000 | 
 | #define SND_DJM_DEVICE_MASK	0xff000000 | 
 | #define SND_DJM_GROUP_SHIFT	16 | 
 | #define SND_DJM_DEVICE_SHIFT	24 | 
 |  | 
 | // device table index | 
 | // used for the snd_djm_devices table, so please update accordingly | 
 | #define SND_DJM_250MK2_IDX	0x0 | 
 | #define SND_DJM_750_IDX		0x1 | 
 | #define SND_DJM_850_IDX		0x2 | 
 | #define SND_DJM_900NXS2_IDX	0x3 | 
 | #define SND_DJM_750MK2_IDX	0x4 | 
 | #define SND_DJM_450_IDX		0x5 | 
 | #define SND_DJM_A9_IDX		0x6 | 
 | #define SND_DJM_V10_IDX	0x7 | 
 |  | 
 | #define SND_DJM_CTL(_name, suffix, _default_value, _windex) { \ | 
 | 	.name = _name, \ | 
 | 	.options = snd_djm_opts_##suffix, \ | 
 | 	.noptions = ARRAY_SIZE(snd_djm_opts_##suffix), \ | 
 | 	.default_value = _default_value, \ | 
 | 	.wIndex = _windex } | 
 |  | 
 | #define SND_DJM_DEVICE(suffix) { \ | 
 | 	.controls = snd_djm_ctls_##suffix, \ | 
 | 	.ncontrols = ARRAY_SIZE(snd_djm_ctls_##suffix) } | 
 |  | 
 | struct snd_djm_device { | 
 | 	const char *name; | 
 | 	const struct snd_djm_ctl *controls; | 
 | 	size_t ncontrols; | 
 | }; | 
 |  | 
 | struct snd_djm_ctl { | 
 | 	const char *name; | 
 | 	const u16 *options; | 
 | 	size_t noptions; | 
 | 	u16 default_value; | 
 | 	u16 wIndex; | 
 | }; | 
 |  | 
 | static const char *snd_djm_get_label_caplevel_common(u16 wvalue) | 
 | { | 
 | 	switch (wvalue) { | 
 | 	case 0x0000:	return "-19dB"; | 
 | 	case 0x0100:	return "-15dB"; | 
 | 	case 0x0200:	return "-10dB"; | 
 | 	case 0x0300:	return "-5dB"; | 
 | 	default:	return NULL; | 
 | 	} | 
 | }; | 
 |  | 
 | // Models like DJM-A9 or DJM-V10 have different capture levels than others | 
 | static const char *snd_djm_get_label_caplevel_high(u16 wvalue) | 
 | { | 
 | 	switch (wvalue) { | 
 | 	case 0x0000:	return "+15dB"; | 
 | 	case 0x0100:	return "+12dB"; | 
 | 	case 0x0200:	return "+9dB"; | 
 | 	case 0x0300:	return "+6dB"; | 
 | 	case 0x0400:	return "+3dB"; | 
 | 	case 0x0500:	return "0dB"; | 
 | 	default:	return NULL; | 
 | 	} | 
 | }; | 
 |  | 
 | static const char *snd_djm_get_label_cap_common(u16 wvalue) | 
 | { | 
 | 	switch (wvalue & 0x00ff) { | 
 | 	case SND_DJM_CAP_LINE:		return "Control Tone LINE"; | 
 | 	case SND_DJM_CAP_CDLINE:	return "Control Tone CD/LINE"; | 
 | 	case SND_DJM_CAP_DIGITAL:	return "Control Tone DIGITAL"; | 
 | 	case SND_DJM_CAP_PHONO:		return "Control Tone PHONO"; | 
 | 	case SND_DJM_CAP_PFADER:	return "Post Fader"; | 
 | 	case SND_DJM_CAP_XFADERA:	return "Cross Fader A"; | 
 | 	case SND_DJM_CAP_XFADERB:	return "Cross Fader B"; | 
 | 	case SND_DJM_CAP_MIC:		return "Mic"; | 
 | 	case SND_DJM_CAP_RECOUT:	return "Rec Out"; | 
 | 	case SND_DJM_CAP_RECOUT_NOMIC:	return "Rec Out without Mic"; | 
 | 	case SND_DJM_CAP_AUX:		return "Aux"; | 
 | 	case SND_DJM_CAP_NONE:		return "None"; | 
 | 	case SND_DJM_CAP_FXSEND:	return "FX SEND"; | 
 | 	case SND_DJM_CAP_CH1PREFADER:	return "Pre Fader Ch1"; | 
 | 	case SND_DJM_CAP_CH2PREFADER:	return "Pre Fader Ch2"; | 
 | 	case SND_DJM_CAP_CH3PREFADER:	return "Pre Fader Ch3"; | 
 | 	case SND_DJM_CAP_CH4PREFADER:	return "Pre Fader Ch4"; | 
 | 	case SND_DJM_CAP_CH1PFADER:	return "Post Fader Ch1"; | 
 | 	case SND_DJM_CAP_CH2PFADER:	return "Post Fader Ch2"; | 
 | 	case SND_DJM_CAP_CH3PFADER:	return "Post Fader Ch3"; | 
 | 	case SND_DJM_CAP_CH4PFADER:	return "Post Fader Ch4"; | 
 | 	case SND_DJM_CAP_EXT1SEND:	return "EXT1 SEND"; | 
 | 	case SND_DJM_CAP_EXT2SEND:	return "EXT2 SEND"; | 
 | 	default:			return NULL; | 
 | 	} | 
 | }; | 
 |  | 
 | // The DJM-850 has different values for CD/LINE and LINE capture | 
 | // control options than the other DJM declared in this file. | 
 | static const char *snd_djm_get_label_cap_850(u16 wvalue) | 
 | { | 
 | 	switch (wvalue & 0x00ff) { | 
 | 	case 0x00:		return "Control Tone CD/LINE"; | 
 | 	case 0x01:		return "Control Tone LINE"; | 
 | 	default:		return snd_djm_get_label_cap_common(wvalue); | 
 | 	} | 
 | }; | 
 |  | 
 | static const char *snd_djm_get_label_caplevel(u8 device_idx, u16 wvalue) | 
 | { | 
 | 	switch (device_idx) { | 
 | 	case SND_DJM_A9_IDX:		return snd_djm_get_label_caplevel_high(wvalue); | 
 | 	case SND_DJM_V10_IDX:		return snd_djm_get_label_caplevel_high(wvalue); | 
 | 	default:			return snd_djm_get_label_caplevel_common(wvalue); | 
 | 	} | 
 | }; | 
 |  | 
 | static const char *snd_djm_get_label_cap(u8 device_idx, u16 wvalue) | 
 | { | 
 | 	switch (device_idx) { | 
 | 	case SND_DJM_850_IDX:		return snd_djm_get_label_cap_850(wvalue); | 
 | 	default:			return snd_djm_get_label_cap_common(wvalue); | 
 | 	} | 
 | }; | 
 |  | 
 | static const char *snd_djm_get_label_pb(u16 wvalue) | 
 | { | 
 | 	switch (wvalue & 0x00ff) { | 
 | 	case SND_DJM_PB_CH1:	return "Ch1"; | 
 | 	case SND_DJM_PB_CH2:	return "Ch2"; | 
 | 	case SND_DJM_PB_AUX:	return "Aux"; | 
 | 	default:		return NULL; | 
 | 	} | 
 | }; | 
 |  | 
 | static const char *snd_djm_get_label(u8 device_idx, u16 wvalue, u16 windex) | 
 | { | 
 | 	switch (windex) { | 
 | 	case SND_DJM_WINDEX_CAPLVL:	return snd_djm_get_label_caplevel(device_idx, wvalue); | 
 | 	case SND_DJM_WINDEX_CAP:	return snd_djm_get_label_cap(device_idx, wvalue); | 
 | 	case SND_DJM_WINDEX_PB:		return snd_djm_get_label_pb(wvalue); | 
 | 	default:			return NULL; | 
 | 	} | 
 | }; | 
 |  | 
 | // common DJM capture level option values | 
 | static const u16 snd_djm_opts_cap_level[] = { | 
 | 	0x0000, 0x0100, 0x0200, 0x0300 }; | 
 |  | 
 | // DJM-250MK2 | 
 | static const u16 snd_djm_opts_250mk2_cap1[] = { | 
 | 	0x0103, 0x0100, 0x0106, 0x0107, 0x0108, 0x0109, 0x010d, 0x010a }; | 
 |  | 
 | static const u16 snd_djm_opts_250mk2_cap2[] = { | 
 | 	0x0203, 0x0200, 0x0206, 0x0207, 0x0208, 0x0209, 0x020d, 0x020a }; | 
 |  | 
 | static const u16 snd_djm_opts_250mk2_cap3[] = { | 
 | 	0x030a, 0x0311, 0x0312, 0x0307, 0x0308, 0x0309, 0x030d }; | 
 |  | 
 | static const u16 snd_djm_opts_250mk2_pb1[] = { 0x0100, 0x0101, 0x0104 }; | 
 | static const u16 snd_djm_opts_250mk2_pb2[] = { 0x0200, 0x0201, 0x0204 }; | 
 | static const u16 snd_djm_opts_250mk2_pb3[] = { 0x0300, 0x0301, 0x0304 }; | 
 |  | 
 | static const struct snd_djm_ctl snd_djm_ctls_250mk2[] = { | 
 | 	SND_DJM_CTL("Master Input Level Capture Switch", cap_level, 0, SND_DJM_WINDEX_CAPLVL), | 
 | 	SND_DJM_CTL("Input 1 Capture Switch",  250mk2_cap1, 2, SND_DJM_WINDEX_CAP), | 
 | 	SND_DJM_CTL("Input 2 Capture Switch",  250mk2_cap2, 2, SND_DJM_WINDEX_CAP), | 
 | 	SND_DJM_CTL("Input 3 Capture Switch",  250mk2_cap3, 0, SND_DJM_WINDEX_CAP), | 
 | 	SND_DJM_CTL("Output 1 Playback Switch", 250mk2_pb1, 0, SND_DJM_WINDEX_PB), | 
 | 	SND_DJM_CTL("Output 2 Playback Switch", 250mk2_pb2, 1, SND_DJM_WINDEX_PB), | 
 | 	SND_DJM_CTL("Output 3 Playback Switch", 250mk2_pb3, 2, SND_DJM_WINDEX_PB) | 
 | }; | 
 |  | 
 | // DJM-450 | 
 | static const u16 snd_djm_opts_450_cap1[] = { | 
 | 	0x0103, 0x0100, 0x0106, 0x0107, 0x0108, 0x0109, 0x010d, 0x010a }; | 
 |  | 
 | static const u16 snd_djm_opts_450_cap2[] = { | 
 | 	0x0203, 0x0200, 0x0206, 0x0207, 0x0208, 0x0209, 0x020d, 0x020a }; | 
 |  | 
 | static const u16 snd_djm_opts_450_cap3[] = { | 
 | 	0x030a, 0x0311, 0x0312, 0x0307, 0x0308, 0x0309, 0x030d }; | 
 |  | 
 | static const u16 snd_djm_opts_450_pb1[] = { 0x0100, 0x0101, 0x0104 }; | 
 | static const u16 snd_djm_opts_450_pb2[] = { 0x0200, 0x0201, 0x0204 }; | 
 | static const u16 snd_djm_opts_450_pb3[] = { 0x0300, 0x0301, 0x0304 }; | 
 |  | 
 | static const struct snd_djm_ctl snd_djm_ctls_450[] = { | 
 | 	SND_DJM_CTL("Master Input Level Capture Switch", cap_level, 0, SND_DJM_WINDEX_CAPLVL), | 
 | 	SND_DJM_CTL("Input 1 Capture Switch",  450_cap1, 2, SND_DJM_WINDEX_CAP), | 
 | 	SND_DJM_CTL("Input 2 Capture Switch",  450_cap2, 2, SND_DJM_WINDEX_CAP), | 
 | 	SND_DJM_CTL("Input 3 Capture Switch",  450_cap3, 0, SND_DJM_WINDEX_CAP), | 
 | 	SND_DJM_CTL("Output 1 Playback Switch", 450_pb1, 0, SND_DJM_WINDEX_PB), | 
 | 	SND_DJM_CTL("Output 2 Playback Switch", 450_pb2, 1, SND_DJM_WINDEX_PB), | 
 | 	SND_DJM_CTL("Output 3 Playback Switch", 450_pb3, 2, SND_DJM_WINDEX_PB) | 
 | }; | 
 |  | 
 | // DJM-750 | 
 | static const u16 snd_djm_opts_750_cap1[] = { | 
 | 	0x0101, 0x0103, 0x0106, 0x0107, 0x0108, 0x0109, 0x010a, 0x010f }; | 
 | static const u16 snd_djm_opts_750_cap2[] = { | 
 | 	0x0200, 0x0201, 0x0206, 0x0207, 0x0208, 0x0209, 0x020a, 0x020f }; | 
 | static const u16 snd_djm_opts_750_cap3[] = { | 
 | 	0x0300, 0x0301, 0x0306, 0x0307, 0x0308, 0x0309, 0x030a, 0x030f }; | 
 | static const u16 snd_djm_opts_750_cap4[] = { | 
 | 	0x0401, 0x0403, 0x0406, 0x0407, 0x0408, 0x0409, 0x040a, 0x040f }; | 
 |  | 
 | static const struct snd_djm_ctl snd_djm_ctls_750[] = { | 
 | 	SND_DJM_CTL("Master Input Level Capture Switch", cap_level, 0, SND_DJM_WINDEX_CAPLVL), | 
 | 	SND_DJM_CTL("Input 1 Capture Switch", 750_cap1, 2, SND_DJM_WINDEX_CAP), | 
 | 	SND_DJM_CTL("Input 2 Capture Switch", 750_cap2, 2, SND_DJM_WINDEX_CAP), | 
 | 	SND_DJM_CTL("Input 3 Capture Switch", 750_cap3, 0, SND_DJM_WINDEX_CAP), | 
 | 	SND_DJM_CTL("Input 4 Capture Switch", 750_cap4, 0, SND_DJM_WINDEX_CAP) | 
 | }; | 
 |  | 
 | // DJM-850 | 
 | static const u16 snd_djm_opts_850_cap1[] = { | 
 | 	0x0100, 0x0103, 0x0106, 0x0107, 0x0108, 0x0109, 0x010a, 0x010f }; | 
 | static const u16 snd_djm_opts_850_cap2[] = { | 
 | 	0x0200, 0x0201, 0x0206, 0x0207, 0x0208, 0x0209, 0x020a, 0x020f }; | 
 | static const u16 snd_djm_opts_850_cap3[] = { | 
 | 	0x0300, 0x0301, 0x0306, 0x0307, 0x0308, 0x0309, 0x030a, 0x030f }; | 
 | static const u16 snd_djm_opts_850_cap4[] = { | 
 | 	0x0400, 0x0403, 0x0406, 0x0407, 0x0408, 0x0409, 0x040a, 0x040f }; | 
 |  | 
 | static const struct snd_djm_ctl snd_djm_ctls_850[] = { | 
 | 	SND_DJM_CTL("Master Input Level Capture Switch", cap_level, 0, SND_DJM_WINDEX_CAPLVL), | 
 | 	SND_DJM_CTL("Input 1 Capture Switch", 850_cap1, 1, SND_DJM_WINDEX_CAP), | 
 | 	SND_DJM_CTL("Input 2 Capture Switch", 850_cap2, 0, SND_DJM_WINDEX_CAP), | 
 | 	SND_DJM_CTL("Input 3 Capture Switch", 850_cap3, 0, SND_DJM_WINDEX_CAP), | 
 | 	SND_DJM_CTL("Input 4 Capture Switch", 850_cap4, 1, SND_DJM_WINDEX_CAP) | 
 | }; | 
 |  | 
 | // DJM-900NXS2 | 
 | static const u16 snd_djm_opts_900nxs2_cap1[] = { | 
 | 	0x0100, 0x0102, 0x0103, 0x0106, 0x0107, 0x0108, 0x0109, 0x010a }; | 
 | static const u16 snd_djm_opts_900nxs2_cap2[] = { | 
 | 	0x0200, 0x0202, 0x0203, 0x0206, 0x0207, 0x0208, 0x0209, 0x020a }; | 
 | static const u16 snd_djm_opts_900nxs2_cap3[] = { | 
 | 	0x0300, 0x0302, 0x0303, 0x0306, 0x0307, 0x0308, 0x0309, 0x030a }; | 
 | static const u16 snd_djm_opts_900nxs2_cap4[] = { | 
 | 	0x0400, 0x0402, 0x0403, 0x0406, 0x0407, 0x0408, 0x0409, 0x040a }; | 
 | static const u16 snd_djm_opts_900nxs2_cap5[] = { | 
 | 	0x0507, 0x0508, 0x0509, 0x050a, 0x0511, 0x0512, 0x0513, 0x0514 }; | 
 |  | 
 | static const struct snd_djm_ctl snd_djm_ctls_900nxs2[] = { | 
 | 	SND_DJM_CTL("Master Input Level Capture Switch", cap_level, 0, SND_DJM_WINDEX_CAPLVL), | 
 | 	SND_DJM_CTL("Input 1 Capture Switch", 900nxs2_cap1, 2, SND_DJM_WINDEX_CAP), | 
 | 	SND_DJM_CTL("Input 2 Capture Switch", 900nxs2_cap2, 2, SND_DJM_WINDEX_CAP), | 
 | 	SND_DJM_CTL("Input 3 Capture Switch", 900nxs2_cap3, 2, SND_DJM_WINDEX_CAP), | 
 | 	SND_DJM_CTL("Input 4 Capture Switch", 900nxs2_cap4, 2, SND_DJM_WINDEX_CAP), | 
 | 	SND_DJM_CTL("Input 5 Capture Switch", 900nxs2_cap5, 3, SND_DJM_WINDEX_CAP) | 
 | }; | 
 |  | 
 | // DJM-750MK2 | 
 | static const u16 snd_djm_opts_750mk2_cap1[] = { | 
 | 	0x0100, 0x0102, 0x0103, 0x0106, 0x0107, 0x0108, 0x0109, 0x010a }; | 
 | static const u16 snd_djm_opts_750mk2_cap2[] = { | 
 | 	0x0200, 0x0202, 0x0203, 0x0206, 0x0207, 0x0208, 0x0209, 0x020a }; | 
 | static const u16 snd_djm_opts_750mk2_cap3[] = { | 
 | 	0x0300, 0x0302, 0x0303, 0x0306, 0x0307, 0x0308, 0x0309, 0x030a }; | 
 | static const u16 snd_djm_opts_750mk2_cap4[] = { | 
 | 	0x0400, 0x0402, 0x0403, 0x0406, 0x0407, 0x0408, 0x0409, 0x040a }; | 
 | static const u16 snd_djm_opts_750mk2_cap5[] = { | 
 | 	0x0507, 0x0508, 0x0509, 0x050a, 0x0511, 0x0512, 0x0513, 0x0514 }; | 
 |  | 
 | static const u16 snd_djm_opts_750mk2_pb1[] = { 0x0100, 0x0101, 0x0104 }; | 
 | static const u16 snd_djm_opts_750mk2_pb2[] = { 0x0200, 0x0201, 0x0204 }; | 
 | static const u16 snd_djm_opts_750mk2_pb3[] = { 0x0300, 0x0301, 0x0304 }; | 
 |  | 
 | static const struct snd_djm_ctl snd_djm_ctls_750mk2[] = { | 
 | 	SND_DJM_CTL("Master Input Level Capture Switch", cap_level, 0, SND_DJM_WINDEX_CAPLVL), | 
 | 	SND_DJM_CTL("Input 1 Capture Switch",   750mk2_cap1, 2, SND_DJM_WINDEX_CAP), | 
 | 	SND_DJM_CTL("Input 2 Capture Switch",   750mk2_cap2, 2, SND_DJM_WINDEX_CAP), | 
 | 	SND_DJM_CTL("Input 3 Capture Switch",   750mk2_cap3, 2, SND_DJM_WINDEX_CAP), | 
 | 	SND_DJM_CTL("Input 4 Capture Switch",   750mk2_cap4, 2, SND_DJM_WINDEX_CAP), | 
 | 	SND_DJM_CTL("Input 5 Capture Switch",   750mk2_cap5, 3, SND_DJM_WINDEX_CAP), | 
 | 	SND_DJM_CTL("Output 1 Playback Switch", 750mk2_pb1, 0, SND_DJM_WINDEX_PB), | 
 | 	SND_DJM_CTL("Output 2 Playback Switch", 750mk2_pb2, 1, SND_DJM_WINDEX_PB), | 
 | 	SND_DJM_CTL("Output 3 Playback Switch", 750mk2_pb3, 2, SND_DJM_WINDEX_PB) | 
 | }; | 
 |  | 
 | // DJM-A9 | 
 | static const u16 snd_djm_opts_a9_cap_level[] = { | 
 | 	0x0000, 0x0100, 0x0200, 0x0300, 0x0400, 0x0500 }; | 
 | static const u16 snd_djm_opts_a9_cap1[] = { | 
 | 	0x0107, 0x0108, 0x0109, 0x010a, 0x010e, | 
 | 	0x111, 0x112, 0x113, 0x114, 0x0131, 0x132, 0x133, 0x134 }; | 
 | static const u16 snd_djm_opts_a9_cap2[] = { | 
 | 	0x0201, 0x0202, 0x0203, 0x0205, 0x0206, 0x0207, 0x0208, 0x0209, 0x020a, 0x020e }; | 
 | static const u16 snd_djm_opts_a9_cap3[] = { | 
 | 	0x0301, 0x0302, 0x0303, 0x0305, 0x0306, 0x0307, 0x0308, 0x0309, 0x030a, 0x030e }; | 
 | static const u16 snd_djm_opts_a9_cap4[] = { | 
 | 	0x0401, 0x0402, 0x0403, 0x0405, 0x0406, 0x0407, 0x0408, 0x0409, 0x040a, 0x040e }; | 
 | static const u16 snd_djm_opts_a9_cap5[] = { | 
 | 	0x0501, 0x0502, 0x0503, 0x0505, 0x0506, 0x0507, 0x0508, 0x0509, 0x050a, 0x050e }; | 
 |  | 
 | static const struct snd_djm_ctl snd_djm_ctls_a9[] = { | 
 | 	SND_DJM_CTL("Master Input Level Capture Switch", a9_cap_level, 0, SND_DJM_WINDEX_CAPLVL), | 
 | 	SND_DJM_CTL("Master Input Capture Switch", a9_cap1, 3, SND_DJM_WINDEX_CAP), | 
 | 	SND_DJM_CTL("Input 1 Capture Switch",  a9_cap2, 2, SND_DJM_WINDEX_CAP), | 
 | 	SND_DJM_CTL("Input 2 Capture Switch",  a9_cap3, 2, SND_DJM_WINDEX_CAP), | 
 | 	SND_DJM_CTL("Input 3 Capture Switch",  a9_cap4, 2, SND_DJM_WINDEX_CAP), | 
 | 	SND_DJM_CTL("Input 4 Capture Switch",  a9_cap5, 2, SND_DJM_WINDEX_CAP) | 
 | }; | 
 |  | 
 | // DJM-V10 | 
 | static const u16 snd_djm_opts_v10_cap_level[] = { | 
 | 	0x0000, 0x0100, 0x0200, 0x0300, 0x0400, 0x0500 | 
 | }; | 
 |  | 
 | static const u16 snd_djm_opts_v10_cap1[] = { | 
 | 	0x0103, | 
 | 	0x0100, 0x0102, 0x0106, 0x0110, 0x0107, | 
 | 	0x0108, 0x0109, 0x010a, 0x0121, 0x0122 | 
 | }; | 
 |  | 
 | static const u16 snd_djm_opts_v10_cap2[] = { | 
 | 	0x0200, 0x0202, 0x0206, 0x0210, 0x0207, | 
 | 	0x0208, 0x0209, 0x020a, 0x0221, 0x0222 | 
 | }; | 
 |  | 
 | static const u16 snd_djm_opts_v10_cap3[] = { | 
 | 	0x0303, | 
 | 	0x0300, 0x0302, 0x0306, 0x0310, 0x0307, | 
 | 	0x0308, 0x0309, 0x030a, 0x0321, 0x0322 | 
 | }; | 
 |  | 
 | static const u16 snd_djm_opts_v10_cap4[] = { | 
 | 	0x0403, | 
 | 	0x0400, 0x0402, 0x0406, 0x0410, 0x0407, | 
 | 	0x0408, 0x0409, 0x040a, 0x0421, 0x0422 | 
 | }; | 
 |  | 
 | static const u16 snd_djm_opts_v10_cap5[] = { | 
 | 	0x0500, 0x0502, 0x0506, 0x0510, 0x0507, | 
 | 	0x0508, 0x0509, 0x050a, 0x0521, 0x0522 | 
 | }; | 
 |  | 
 | static const u16 snd_djm_opts_v10_cap6[] = { | 
 | 	0x0603, | 
 | 	0x0600, 0x0602, 0x0606, 0x0610, 0x0607, | 
 | 	0x0608, 0x0609, 0x060a, 0x0621, 0x0622 | 
 | }; | 
 |  | 
 | static const struct snd_djm_ctl snd_djm_ctls_v10[] = { | 
 | 	SND_DJM_CTL("Master Input Level Capture Switch", v10_cap_level, 0, SND_DJM_WINDEX_CAPLVL), | 
 | 	SND_DJM_CTL("Input 1 Capture Switch", v10_cap1, 2, SND_DJM_WINDEX_CAP), | 
 | 	SND_DJM_CTL("Input 2 Capture Switch", v10_cap2, 2, SND_DJM_WINDEX_CAP), | 
 | 	SND_DJM_CTL("Input 3 Capture Switch", v10_cap3, 0, SND_DJM_WINDEX_CAP), | 
 | 	SND_DJM_CTL("Input 4 Capture Switch", v10_cap4, 0, SND_DJM_WINDEX_CAP), | 
 | 	SND_DJM_CTL("Input 5 Capture Switch", v10_cap5, 0, SND_DJM_WINDEX_CAP), | 
 | 	SND_DJM_CTL("Input 6 Capture Switch", v10_cap6, 0, SND_DJM_WINDEX_CAP) | 
 | 	// playback channels are fixed and controlled by hardware knobs on the mixer | 
 | }; | 
 |  | 
 | static const struct snd_djm_device snd_djm_devices[] = { | 
 | 	[SND_DJM_250MK2_IDX] = SND_DJM_DEVICE(250mk2), | 
 | 	[SND_DJM_750_IDX] = SND_DJM_DEVICE(750), | 
 | 	[SND_DJM_850_IDX] = SND_DJM_DEVICE(850), | 
 | 	[SND_DJM_900NXS2_IDX] = SND_DJM_DEVICE(900nxs2), | 
 | 	[SND_DJM_750MK2_IDX] = SND_DJM_DEVICE(750mk2), | 
 | 	[SND_DJM_450_IDX] = SND_DJM_DEVICE(450), | 
 | 	[SND_DJM_A9_IDX] = SND_DJM_DEVICE(a9), | 
 | 	[SND_DJM_V10_IDX] = SND_DJM_DEVICE(v10), | 
 | }; | 
 |  | 
 | static int snd_djm_controls_info(struct snd_kcontrol *kctl, | 
 | 				 struct snd_ctl_elem_info *info) | 
 | { | 
 | 	unsigned long private_value = kctl->private_value; | 
 | 	u8 device_idx = (private_value & SND_DJM_DEVICE_MASK) >> SND_DJM_DEVICE_SHIFT; | 
 | 	u8 ctl_idx = (private_value & SND_DJM_GROUP_MASK) >> SND_DJM_GROUP_SHIFT; | 
 | 	const struct snd_djm_device *device = &snd_djm_devices[device_idx]; | 
 | 	const char *name; | 
 | 	const struct snd_djm_ctl *ctl; | 
 | 	size_t noptions; | 
 |  | 
 | 	if (ctl_idx >= device->ncontrols) | 
 | 		return -EINVAL; | 
 |  | 
 | 	ctl = &device->controls[ctl_idx]; | 
 | 	noptions = ctl->noptions; | 
 | 	if (info->value.enumerated.item >= noptions) | 
 | 		info->value.enumerated.item = noptions - 1; | 
 |  | 
 | 	name = snd_djm_get_label(device_idx, | 
 | 				 ctl->options[info->value.enumerated.item], | 
 | 				 ctl->wIndex); | 
 | 	if (!name) | 
 | 		return -EINVAL; | 
 |  | 
 | 	strscpy(info->value.enumerated.name, name, sizeof(info->value.enumerated.name)); | 
 | 	info->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | 
 | 	info->count = 1; | 
 | 	info->value.enumerated.items = noptions; | 
 | 	return 0; | 
 | } | 
 |  | 
 | static int snd_djm_controls_update(struct usb_mixer_interface *mixer, | 
 | 				   u8 device_idx, u8 group, u16 value) | 
 | { | 
 | 	int err; | 
 | 	const struct snd_djm_device *device = &snd_djm_devices[device_idx]; | 
 |  | 
 | 	if (group >= device->ncontrols || value >= device->controls[group].noptions) | 
 | 		return -EINVAL; | 
 |  | 
 | 	err = snd_usb_lock_shutdown(mixer->chip); | 
 | 	if (err) | 
 | 		return err; | 
 |  | 
 | 	err = snd_usb_ctl_msg(mixer->chip->dev, | 
 | 			      usb_sndctrlpipe(mixer->chip->dev, 0), | 
 | 			      USB_REQ_SET_FEATURE, | 
 | 			      USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | 
 | 			      device->controls[group].options[value], | 
 | 			      device->controls[group].wIndex, | 
 | 			      NULL, 0); | 
 |  | 
 | 	snd_usb_unlock_shutdown(mixer->chip); | 
 | 	return err; | 
 | } | 
 |  | 
 | static int snd_djm_controls_get(struct snd_kcontrol *kctl, | 
 | 				struct snd_ctl_elem_value *elem) | 
 | { | 
 | 	elem->value.enumerated.item[0] = kctl->private_value & SND_DJM_VALUE_MASK; | 
 | 	return 0; | 
 | } | 
 |  | 
 | static int snd_djm_controls_put(struct snd_kcontrol *kctl, struct snd_ctl_elem_value *elem) | 
 | { | 
 | 	struct usb_mixer_elem_list *list = snd_kcontrol_chip(kctl); | 
 | 	struct usb_mixer_interface *mixer = list->mixer; | 
 | 	unsigned long private_value = kctl->private_value; | 
 |  | 
 | 	u8 device = (private_value & SND_DJM_DEVICE_MASK) >> SND_DJM_DEVICE_SHIFT; | 
 | 	u8 group = (private_value & SND_DJM_GROUP_MASK) >> SND_DJM_GROUP_SHIFT; | 
 | 	u16 value = elem->value.enumerated.item[0]; | 
 |  | 
 | 	kctl->private_value = (((unsigned long)device << SND_DJM_DEVICE_SHIFT) | | 
 | 			      (group << SND_DJM_GROUP_SHIFT) | | 
 | 			      value); | 
 |  | 
 | 	return snd_djm_controls_update(mixer, device, group, value); | 
 | } | 
 |  | 
 | static int snd_djm_controls_resume(struct usb_mixer_elem_list *list) | 
 | { | 
 | 	unsigned long private_value = list->kctl->private_value; | 
 | 	u8 device = (private_value & SND_DJM_DEVICE_MASK) >> SND_DJM_DEVICE_SHIFT; | 
 | 	u8 group = (private_value & SND_DJM_GROUP_MASK) >> SND_DJM_GROUP_SHIFT; | 
 | 	u16 value = (private_value & SND_DJM_VALUE_MASK); | 
 |  | 
 | 	return snd_djm_controls_update(list->mixer, device, group, value); | 
 | } | 
 |  | 
 | static int snd_djm_controls_create(struct usb_mixer_interface *mixer, | 
 | 				   const u8 device_idx) | 
 | { | 
 | 	int err, i; | 
 | 	u16 value; | 
 |  | 
 | 	const struct snd_djm_device *device = &snd_djm_devices[device_idx]; | 
 |  | 
 | 	struct snd_kcontrol_new knew = { | 
 | 		.iface  = SNDRV_CTL_ELEM_IFACE_MIXER, | 
 | 		.access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | 
 | 		.index = 0, | 
 | 		.info = snd_djm_controls_info, | 
 | 		.get  = snd_djm_controls_get, | 
 | 		.put  = snd_djm_controls_put | 
 | 	}; | 
 |  | 
 | 	for (i = 0; i < device->ncontrols; i++) { | 
 | 		value = device->controls[i].default_value; | 
 | 		knew.name = device->controls[i].name; | 
 | 		knew.private_value = | 
 | 			((unsigned long)device_idx << SND_DJM_DEVICE_SHIFT) | | 
 | 			(i << SND_DJM_GROUP_SHIFT) | | 
 | 			value; | 
 | 		err = snd_djm_controls_update(mixer, device_idx, i, value); | 
 | 		if (err) | 
 | 			return err; | 
 | 		err = add_single_ctl_with_resume(mixer, 0, snd_djm_controls_resume, | 
 | 						 &knew, NULL); | 
 | 		if (err) | 
 | 			return err; | 
 | 	} | 
 | 	return 0; | 
 | } | 
 |  | 
 | int snd_usb_mixer_apply_create_quirk(struct usb_mixer_interface *mixer) | 
 | { | 
 | 	int err = 0; | 
 |  | 
 | 	err = snd_usb_soundblaster_remote_init(mixer); | 
 | 	if (err < 0) | 
 | 		return err; | 
 |  | 
 | 	switch (mixer->chip->usb_id) { | 
 | 	/* Tascam US-16x08 */ | 
 | 	case USB_ID(0x0644, 0x8047): | 
 | 		err = snd_us16x08_controls_create(mixer); | 
 | 		break; | 
 | 	case USB_ID(0x041e, 0x3020): | 
 | 	case USB_ID(0x041e, 0x3040): | 
 | 	case USB_ID(0x041e, 0x3042): | 
 | 	case USB_ID(0x041e, 0x30df): | 
 | 	case USB_ID(0x041e, 0x3048): | 
 | 		err = snd_audigy2nx_controls_create(mixer); | 
 | 		if (err < 0) | 
 | 			break; | 
 | 		snd_card_ro_proc_new(mixer->chip->card, "audigy2nx", | 
 | 				     mixer, snd_audigy2nx_proc_read); | 
 | 		break; | 
 |  | 
 | 	/* EMU0204 */ | 
 | 	case USB_ID(0x041e, 0x3f19): | 
 | 		err = snd_emu0204_controls_create(mixer); | 
 | 		break; | 
 |  | 
 | #if IS_REACHABLE(CONFIG_INPUT) | 
 | 	case USB_ID(0x054c, 0x0ce6): /* Sony DualSense controller (PS5) */ | 
 | 	case USB_ID(0x054c, 0x0df2): /* Sony DualSense Edge controller (PS5) */ | 
 | 		err = snd_dualsense_controls_create(mixer); | 
 | 		break; | 
 | #endif /* IS_REACHABLE(CONFIG_INPUT) */ | 
 |  | 
 | 	case USB_ID(0x0763, 0x2030): /* M-Audio Fast Track C400 */ | 
 | 	case USB_ID(0x0763, 0x2031): /* M-Audio Fast Track C400 */ | 
 | 		err = snd_c400_create_mixer(mixer); | 
 | 		break; | 
 |  | 
 | 	case USB_ID(0x0763, 0x2080): /* M-Audio Fast Track Ultra */ | 
 | 	case USB_ID(0x0763, 0x2081): /* M-Audio Fast Track Ultra 8R */ | 
 | 		err = snd_ftu_create_mixer(mixer); | 
 | 		break; | 
 |  | 
 | 	case USB_ID(0x0b05, 0x1739): /* ASUS Xonar U1 */ | 
 | 	case USB_ID(0x0b05, 0x1743): /* ASUS Xonar U1 (2) */ | 
 | 	case USB_ID(0x0b05, 0x17a0): /* ASUS Xonar U3 */ | 
 | 		err = snd_xonar_u1_controls_create(mixer); | 
 | 		break; | 
 |  | 
 | 	case USB_ID(0x0d8c, 0x0103): /* Audio Advantage Micro II */ | 
 | 		err = snd_microii_controls_create(mixer); | 
 | 		break; | 
 |  | 
 | 	case USB_ID(0x0dba, 0x1000): /* Digidesign Mbox 1 */ | 
 | 		err = snd_mbox1_controls_create(mixer); | 
 | 		break; | 
 |  | 
 | 	case USB_ID(0x17cc, 0x1011): /* Traktor Audio 6 */ | 
 | 		err = snd_nativeinstruments_create_mixer(/* checkpatch hack */ | 
 | 				mixer, | 
 | 				snd_nativeinstruments_ta6_mixers, | 
 | 				ARRAY_SIZE(snd_nativeinstruments_ta6_mixers)); | 
 | 		break; | 
 |  | 
 | 	case USB_ID(0x17cc, 0x1021): /* Traktor Audio 10 */ | 
 | 		err = snd_nativeinstruments_create_mixer(/* checkpatch hack */ | 
 | 				mixer, | 
 | 				snd_nativeinstruments_ta10_mixers, | 
 | 				ARRAY_SIZE(snd_nativeinstruments_ta10_mixers)); | 
 | 		break; | 
 |  | 
 | 	case USB_ID(0x200c, 0x1018): /* Electrix Ebox-44 */ | 
 | 		/* detection is disabled in mixer_maps.c */ | 
 | 		err = snd_create_std_mono_table(mixer, ebox44_table); | 
 | 		break; | 
 |  | 
 | 	case USB_ID(0x1235, 0x8012): /* Focusrite Scarlett 6i6 */ | 
 | 	case USB_ID(0x1235, 0x8002): /* Focusrite Scarlett 8i6 */ | 
 | 	case USB_ID(0x1235, 0x8004): /* Focusrite Scarlett 18i6 */ | 
 | 	case USB_ID(0x1235, 0x8014): /* Focusrite Scarlett 18i8 */ | 
 | 	case USB_ID(0x1235, 0x800c): /* Focusrite Scarlett 18i20 */ | 
 | 		err = snd_scarlett_controls_create(mixer); | 
 | 		break; | 
 |  | 
 | 	case USB_ID(0x1235, 0x8203): /* Focusrite Scarlett 6i6 2nd Gen */ | 
 | 	case USB_ID(0x1235, 0x8204): /* Focusrite Scarlett 18i8 2nd Gen */ | 
 | 	case USB_ID(0x1235, 0x8201): /* Focusrite Scarlett 18i20 2nd Gen */ | 
 | 	case USB_ID(0x1235, 0x8211): /* Focusrite Scarlett Solo 3rd Gen */ | 
 | 	case USB_ID(0x1235, 0x8210): /* Focusrite Scarlett 2i2 3rd Gen */ | 
 | 	case USB_ID(0x1235, 0x8212): /* Focusrite Scarlett 4i4 3rd Gen */ | 
 | 	case USB_ID(0x1235, 0x8213): /* Focusrite Scarlett 8i6 3rd Gen */ | 
 | 	case USB_ID(0x1235, 0x8214): /* Focusrite Scarlett 18i8 3rd Gen */ | 
 | 	case USB_ID(0x1235, 0x8215): /* Focusrite Scarlett 18i20 3rd Gen */ | 
 | 	case USB_ID(0x1235, 0x8216): /* Focusrite Vocaster One */ | 
 | 	case USB_ID(0x1235, 0x8217): /* Focusrite Vocaster Two */ | 
 | 	case USB_ID(0x1235, 0x8218): /* Focusrite Scarlett Solo 4th Gen */ | 
 | 	case USB_ID(0x1235, 0x8219): /* Focusrite Scarlett 2i2 4th Gen */ | 
 | 	case USB_ID(0x1235, 0x821a): /* Focusrite Scarlett 4i4 4th Gen */ | 
 | 	case USB_ID(0x1235, 0x8206): /* Focusrite Clarett 2Pre USB */ | 
 | 	case USB_ID(0x1235, 0x8207): /* Focusrite Clarett 4Pre USB */ | 
 | 	case USB_ID(0x1235, 0x8208): /* Focusrite Clarett 8Pre USB */ | 
 | 	case USB_ID(0x1235, 0x820a): /* Focusrite Clarett+ 2Pre */ | 
 | 	case USB_ID(0x1235, 0x820b): /* Focusrite Clarett+ 4Pre */ | 
 | 	case USB_ID(0x1235, 0x820c): /* Focusrite Clarett+ 8Pre */ | 
 | 		err = snd_scarlett2_init(mixer); | 
 | 		break; | 
 |  | 
 | 	case USB_ID(0x1235, 0x821b): /* Focusrite Scarlett 16i16 4th Gen */ | 
 | 	case USB_ID(0x1235, 0x821c): /* Focusrite Scarlett 18i16 4th Gen */ | 
 | 	case USB_ID(0x1235, 0x821d): /* Focusrite Scarlett 18i20 4th Gen */ | 
 | 		err = snd_fcp_init(mixer); | 
 | 		break; | 
 |  | 
 | 	case USB_ID(0x041e, 0x323b): /* Creative Sound Blaster E1 */ | 
 | 		err = snd_soundblaster_e1_switch_create(mixer); | 
 | 		break; | 
 | 	case USB_ID(0x0bda, 0x4014): /* Dell WD15 dock */ | 
 | 		err = dell_dock_mixer_create(mixer); | 
 | 		if (err < 0) | 
 | 			break; | 
 | 		err = dell_dock_mixer_init(mixer); | 
 | 		break; | 
 | 	case USB_ID(0x0bda, 0x402e): /* Dell WD19 dock */ | 
 | 		err = dell_dock_mixer_create(mixer); | 
 | 		break; | 
 |  | 
 | 	case USB_ID(0x2a39, 0x3fd2): /* RME ADI-2 Pro */ | 
 | 	case USB_ID(0x2a39, 0x3fd3): /* RME ADI-2 DAC */ | 
 | 	case USB_ID(0x2a39, 0x3fd4): /* RME */ | 
 | 		err = snd_rme_controls_create(mixer); | 
 | 		break; | 
 |  | 
 | 	case USB_ID(0x194f, 0x010c): /* Presonus Studio 1810c */ | 
 | 		err = snd_sc1810_init_mixer(mixer); | 
 | 		break; | 
 | 	case USB_ID(0x194f, 0x010d): /* Presonus Studio 1824c */ | 
 | 		err = snd_sc1810_init_mixer(mixer); | 
 | 		break; | 
 | 	case USB_ID(0x2a39, 0x3fb0): /* RME Babyface Pro FS */ | 
 | 		err = snd_bbfpro_controls_create(mixer); | 
 | 		break; | 
 | 	case USB_ID(0x2a39, 0x3f8c): /* RME Digiface USB */ | 
 | 	case USB_ID(0x2a39, 0x3fa0): /* RME Digiface USB (alternate) */ | 
 | 		err = snd_rme_digiface_controls_create(mixer); | 
 | 		break; | 
 | 	case USB_ID(0x2b73, 0x0017): /* Pioneer DJ DJM-250MK2 */ | 
 | 		err = snd_djm_controls_create(mixer, SND_DJM_250MK2_IDX); | 
 | 		break; | 
 | 	case USB_ID(0x2b73, 0x0013): /* Pioneer DJ DJM-450 */ | 
 | 		err = snd_djm_controls_create(mixer, SND_DJM_450_IDX); | 
 | 		break; | 
 | 	case USB_ID(0x08e4, 0x017f): /* Pioneer DJ DJM-750 */ | 
 | 		err = snd_djm_controls_create(mixer, SND_DJM_750_IDX); | 
 | 		break; | 
 | 	case USB_ID(0x2b73, 0x001b): /* Pioneer DJ DJM-750MK2 */ | 
 | 		err = snd_djm_controls_create(mixer, SND_DJM_750MK2_IDX); | 
 | 		break; | 
 | 	case USB_ID(0x08e4, 0x0163): /* Pioneer DJ DJM-850 */ | 
 | 		err = snd_djm_controls_create(mixer, SND_DJM_850_IDX); | 
 | 		break; | 
 | 	case USB_ID(0x2b73, 0x000a): /* Pioneer DJ DJM-900NXS2 */ | 
 | 		err = snd_djm_controls_create(mixer, SND_DJM_900NXS2_IDX); | 
 | 		break; | 
 | 	case USB_ID(0x2b73, 0x003c): /* Pioneer DJ / AlphaTheta DJM-A9 */ | 
 | 		err = snd_djm_controls_create(mixer, SND_DJM_A9_IDX); | 
 | 		break; | 
 | 	case USB_ID(0x2b73, 0x0034): /* Pioneer DJ DJM-V10 */ | 
 | 		err = snd_djm_controls_create(mixer, SND_DJM_V10_IDX); | 
 | 		break; | 
 | 	} | 
 |  | 
 | 	return err; | 
 | } | 
 |  | 
 | void snd_usb_mixer_resume_quirk(struct usb_mixer_interface *mixer) | 
 | { | 
 | 	switch (mixer->chip->usb_id) { | 
 | 	case USB_ID(0x0bda, 0x4014): /* Dell WD15 dock */ | 
 | 		dell_dock_mixer_init(mixer); | 
 | 		break; | 
 | 	} | 
 | } | 
 |  | 
 | void snd_usb_mixer_rc_memory_change(struct usb_mixer_interface *mixer, | 
 | 				    int unitid) | 
 | { | 
 | 	if (!mixer->rc_cfg) | 
 | 		return; | 
 | 	/* unit ids specific to Extigy/Audigy 2 NX: */ | 
 | 	switch (unitid) { | 
 | 	case 0: /* remote control */ | 
 | 		mixer->rc_urb->dev = mixer->chip->dev; | 
 | 		usb_submit_urb(mixer->rc_urb, GFP_ATOMIC); | 
 | 		break; | 
 | 	case 4: /* digital in jack */ | 
 | 	case 7: /* line in jacks */ | 
 | 	case 19: /* speaker out jacks */ | 
 | 	case 20: /* headphones out jack */ | 
 | 		break; | 
 | 	/* live24ext: 4 = line-in jack */ | 
 | 	case 3:	/* hp-out jack (may actuate Mute) */ | 
 | 		if (mixer->chip->usb_id == USB_ID(0x041e, 0x3040) || | 
 | 		    mixer->chip->usb_id == USB_ID(0x041e, 0x3048)) | 
 | 			snd_usb_mixer_notify_id(mixer, mixer->rc_cfg->mute_mixer_id); | 
 | 		break; | 
 | 	default: | 
 | 		usb_audio_dbg(mixer->chip, "memory change in unknown unit %d\n", unitid); | 
 | 		break; | 
 | 	} | 
 | } | 
 |  | 
 | static void snd_dragonfly_quirk_db_scale(struct usb_mixer_interface *mixer, | 
 | 					 struct usb_mixer_elem_info *cval, | 
 | 					 struct snd_kcontrol *kctl) | 
 | { | 
 | 	/* Approximation using 10 ranges based on output measurement on hw v1.2. | 
 | 	 * This seems close to the cubic mapping e.g. alsamixer uses. | 
 | 	 */ | 
 | 	static const DECLARE_TLV_DB_RANGE(scale, | 
 | 		 0,  1, TLV_DB_MINMAX_ITEM(-5300, -4970), | 
 | 		 2,  5, TLV_DB_MINMAX_ITEM(-4710, -4160), | 
 | 		 6,  7, TLV_DB_MINMAX_ITEM(-3884, -3710), | 
 | 		 8, 14, TLV_DB_MINMAX_ITEM(-3443, -2560), | 
 | 		15, 16, TLV_DB_MINMAX_ITEM(-2475, -2324), | 
 | 		17, 19, TLV_DB_MINMAX_ITEM(-2228, -2031), | 
 | 		20, 26, TLV_DB_MINMAX_ITEM(-1910, -1393), | 
 | 		27, 31, TLV_DB_MINMAX_ITEM(-1322, -1032), | 
 | 		32, 40, TLV_DB_MINMAX_ITEM(-968, -490), | 
 | 		41, 50, TLV_DB_MINMAX_ITEM(-441, 0), | 
 | 	); | 
 |  | 
 | 	if (cval->min == 0 && cval->max == 50) { | 
 | 		usb_audio_info(mixer->chip, "applying DragonFly dB scale quirk (0-50 variant)\n"); | 
 | 		kctl->tlv.p = scale; | 
 | 		kctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_TLV_READ; | 
 | 		kctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; | 
 |  | 
 | 	} else if (cval->min == 0 && cval->max <= 1000) { | 
 | 		/* Some other clearly broken DragonFly variant. | 
 | 		 * At least a 0..53 variant (hw v1.0) exists. | 
 | 		 */ | 
 | 		usb_audio_info(mixer->chip, "ignoring too narrow dB range on a DragonFly device"); | 
 | 		kctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; | 
 | 	} | 
 | } | 
 |  | 
 | /* | 
 |  * Some Plantronics headsets have control names that don't meet ALSA naming | 
 |  * standards. This function fixes nonstandard source names. By the time | 
 |  * this function is called the control name should look like one of these: | 
 |  * "source names Playback Volume" | 
 |  * "source names Playback Switch" | 
 |  * "source names Capture Volume" | 
 |  * "source names Capture Switch" | 
 |  * If any of the trigger words are found in the name then the name will | 
 |  * be changed to: | 
 |  * "Headset Playback Volume" | 
 |  * "Headset Playback Switch" | 
 |  * "Headset Capture Volume" | 
 |  * "Headset Capture Switch" | 
 |  * depending on the current suffix. | 
 |  */ | 
 | static void snd_fix_plt_name(struct snd_usb_audio *chip, | 
 | 			     struct snd_ctl_elem_id *id) | 
 | { | 
 | 	/* no variant of "Sidetone" should be added to this list */ | 
 | 	static const char * const trigger[] = { | 
 | 		"Earphone", "Microphone", "Receive", "Transmit" | 
 | 	}; | 
 | 	static const char * const suffix[] = { | 
 | 		" Playback Volume", " Playback Switch", | 
 | 		" Capture Volume", " Capture Switch" | 
 | 	}; | 
 | 	int i; | 
 |  | 
 | 	for (i = 0; i < ARRAY_SIZE(trigger); i++) | 
 | 		if (strstr(id->name, trigger[i])) | 
 | 			goto triggered; | 
 | 	usb_audio_dbg(chip, "no change in %s\n", id->name); | 
 | 	return; | 
 |  | 
 | triggered: | 
 | 	for (i = 0; i < ARRAY_SIZE(suffix); i++) | 
 | 		if (strstr(id->name, suffix[i])) { | 
 | 			usb_audio_dbg(chip, "fixing kctl name %s\n", id->name); | 
 | 			snprintf(id->name, sizeof(id->name), "Headset%s", | 
 | 				 suffix[i]); | 
 | 			return; | 
 | 		} | 
 | 	usb_audio_dbg(chip, "something wrong in kctl name %s\n", id->name); | 
 | } | 
 |  | 
 | void snd_usb_mixer_fu_apply_quirk(struct usb_mixer_interface *mixer, | 
 | 				  struct usb_mixer_elem_info *cval, int unitid, | 
 | 				  struct snd_kcontrol *kctl) | 
 | { | 
 | 	switch (mixer->chip->usb_id) { | 
 | 	case USB_ID(0x21b4, 0x0081): /* AudioQuest DragonFly */ | 
 | 		if (unitid == 7 && cval->control == UAC_FU_VOLUME) | 
 | 			snd_dragonfly_quirk_db_scale(mixer, cval, kctl); | 
 | 		break; | 
 | 	/* lowest playback value is muted on some devices */ | 
 | 	case USB_ID(0x0d8c, 0x000c): /* C-Media */ | 
 | 	case USB_ID(0x0d8c, 0x0014): /* C-Media */ | 
 | 	case USB_ID(0x19f7, 0x0003): /* RODE NT-USB */ | 
 | 		if (strstr(kctl->id.name, "Playback")) | 
 | 			cval->min_mute = 1; | 
 | 		break; | 
 | 	} | 
 |  | 
 | 	/* ALSA-ify some Plantronics headset control names */ | 
 | 	if (USB_ID_VENDOR(mixer->chip->usb_id) == 0x047f && | 
 | 	    (cval->control == UAC_FU_MUTE || cval->control == UAC_FU_VOLUME)) | 
 | 		snd_fix_plt_name(mixer->chip, &kctl->id); | 
 | } |