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linux/sound/usb/mixer_quirks.c
Takashi Iwai 47ab154593 ALSA: usb-audio: Avoid nested autoresume calls 
After the recent fix of runtime PM for USB-audio driver, we got a
lockdep warning like:

  =============================================
  [ INFO: possible recursive locking detected ]
  4.2.0-rc8+ #61 Not tainted
  ---------------------------------------------
  pulseaudio/980 is trying to acquire lock:
   (&chip->shutdown_rwsem){.+.+.+}, at: [<ffffffffa0355dac>] snd_usb_autoresume+0x1d/0x52 [snd_usb_audio]
  but task is already holding lock:
   (&chip->shutdown_rwsem){.+.+.+}, at: [<ffffffffa0355dac>] snd_usb_autoresume+0x1d/0x52 [snd_usb_audio]

This comes from snd_usb_autoresume() invoking down_read() and it's
used in a nested way.  Although it's basically safe, per se (as these
are read locks), it's better to reduce such spurious warnings.

The read lock is needed to guarantee the execution of "shutdown"
(cleanup at disconnection) task after all concurrent tasks are
finished.  This can be implemented in another better way.

Also, the current check of chip->in_pm isn't good enough for
protecting the racy execution of multiple auto-resumes.

This patch rewrites the logic of snd_usb_autoresume() & co; namely,
- The recursive call of autopm is avoided by the new refcount,
  chip->active.  The chip->in_pm flag is removed accordingly.
- Instead of rwsem, another refcount, chip->usage_count, is introduced
  for tracking the period to delay the shutdown procedure.  At
  the last clear of this refcount, wake_up() to the shutdown waiter is
  called.
- The shutdown flag is replaced with shutdown atomic count; this is
  for reducing the lock.
- Two new helpers are introduced to simplify the management of these
  refcounts; snd_usb_lock_shutdown() increases the usage_count, checks
  the shutdown state, and does autoresume.  snd_usb_unlock_shutdown()
  does the opposite.  Most of mixer and other codes just need this,
  and simply returns an error if it receives an error from lock.

Fixes: 9003ebb13f ('ALSA: usb-audio: Fix runtime PM unbalance')
Reported-and-tested-by: Alexnader Kuleshov <kuleshovmail@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-08-26 15:38:25 +02:00

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/*
* 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)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/init.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/hwdep.h>
#include <sound/info.h>
#include "usbaudio.h"
#include "mixer.h"
#include "mixer_quirks.h"
#include "mixer_scarlett.h"
#include "helper.h"
extern struct snd_kcontrol_new *snd_usb_feature_unit_ctl;
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,
struct std_mono_table *t)
{
int err;
while (t->name != NULL) {
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;
return snd_usb_mixer_add_control(list, kctl);
}
/*
* 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, 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;
wmb();
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 unsigned int 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 ? POLLIN | POLLRDNORM : 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;
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 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 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);
}
/* 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 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 clock source switch (internal/spdif) */
static int snd_mbox1_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_switch_update(struct usb_mixer_interface *mixer, int val)
{
struct snd_usb_audio *chip = mixer->chip;
int err;
unsigned char buff[3];
err = snd_usb_lock_shutdown(chip);
if (err < 0)
return err;
/* Prepare for magic command to toggle clock 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, buff, 1);
if (err < 0)
goto err;
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)
goto err;
/* 2 possibilities: Internal -> send sample rate
* S/PDIF sync -> send zeroes
* NB: Sample rate locked to 48kHz on purpose to
* prevent user from resetting the sample rate
* while S/PDIF sync is enabled and confusing
* this configuration.
*/
if (val == 0) {
buff[0] = 0x80;
buff[1] = 0xbb;
buff[2] = 0x00;
} else {
buff[0] = buff[1] = buff[2] = 0x00;
}
/* Send the magic command to toggle the clock source */
err = snd_usb_ctl_msg(chip->dev,
usb_sndctrlpipe(chip->dev, 0), 0x1,
USB_TYPE_CLASS |
USB_RECIP_ENDPOINT, 0x100, 0x81, buff, 3);
if (err < 0)
goto err;
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)
goto err;
err = snd_usb_ctl_msg(chip->dev,
usb_rcvctrlpipe(chip->dev, 0), 0x81,
USB_DIR_IN |
USB_TYPE_CLASS |
USB_RECIP_ENDPOINT, 0x100, 0x2, buff, 3);
if (err < 0)
goto err;
err:
snd_usb_unlock_shutdown(chip);
return err;
}
static int snd_mbox1_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_switch_update(mixer, new_val);
return err < 0 ? err : 1;
}
static int snd_mbox1_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_switch_resume(struct usb_mixer_elem_list *list)
{
return snd_mbox1_switch_update(list->mixer, list->kctl->private_value);
}
static struct snd_kcontrol_new snd_mbox1_switch = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Clock Source",
.index = 0,
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
.info = snd_mbox1_switch_info,
.get = snd_mbox1_switch_get,
.put = snd_mbox1_switch_put,
.private_value = 0
};
static int snd_mbox1_create_sync_switch(struct usb_mixer_interface *mixer)
{
return add_single_ctl_with_resume(mixer, 0,
snd_mbox1_switch_resume,
&snd_mbox1_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 |= (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 |= newval;
err = snd_ni_update_cur_val(list);
return err < 0 ? err : 1;
}
static 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 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->chip) | ((pval & 0xff) << 8),
value, 2);
if (err < 0)
return err;
kctl->private_value |= 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(chip) | ((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 = 1 << 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 = 1 << 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 = 1 << 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 = 1 << 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 = 1 << 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; /* SamleRate ExtensionUnit ID */
list_for_each_entry(mixer, &chip->mixer_list, list) {
cval = (struct usb_mixer_elem_info *)mixer->id_elems[unitid];
if (cval) {
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 : 1 << (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 : 1 << (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 :
1 << (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 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);
alts = &iface->altsetting[1];
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 = pval_old = kcontrol->private_value;
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 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 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;
}
int snd_usb_mixer_apply_create_quirk(struct usb_mixer_interface *mixer)
{
int err = 0;
struct snd_info_entry *entry;
if ((err = snd_usb_soundblaster_remote_init(mixer)) < 0)
return err;
switch (mixer->chip->usb_id) {
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;
if (!snd_card_proc_new(mixer->chip->card, "audigy2nx", &entry))
snd_info_set_text_ops(entry, mixer,
snd_audigy2nx_proc_read);
break;
/* EMU0204 */
case USB_ID(0x041e, 0x3f19):
err = snd_emu0204_controls_create(mixer);
if (err < 0)
break;
break;
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_create_sync_switch(mixer);
break;
case USB_ID(0x17cc, 0x1011): /* Traktor Audio 6 */
err = snd_nativeinstruments_create_mixer(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(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;
}
return err;
}
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;
}
}
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