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ALSA: usb-audio: Add audigy2nx resume support
Rewrite the code to handle LEDs on audigy2nx and co for supporting the proper resume. A new internal helper function add_single_ctl_with_resume() is introduced to manage the usb_mixer_elem_list more easily. Also while we're at it, move audigy2nx_leds[] in usb_mixer_interface struct into the private_value of each kctl, too. Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai
parent
3360b84b8e
commit
9cf3689bfe
@ -23,7 +23,6 @@ struct usb_mixer_interface {
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struct usb_ctrlrequest *rc_setup_packet;
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u8 rc_buffer[6];
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u8 audigy2nx_leds[3];
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u8 xonar_u1_status;
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};
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@ -144,6 +144,32 @@ static int snd_create_std_mono_table(struct usb_mixer_interface *mixer,
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return 0;
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}
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static int add_single_ctl_with_resume(struct usb_mixer_interface *mixer,
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int id,
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usb_mixer_elem_resume_func_t resume,
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const struct snd_kcontrol_new *knew,
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struct usb_mixer_elem_list **listp)
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{
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struct usb_mixer_elem_list *list;
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struct snd_kcontrol *kctl;
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list = kzalloc(sizeof(*list), GFP_KERNEL);
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if (!list)
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return -ENOMEM;
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if (listp)
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*listp = list;
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list->mixer = mixer;
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list->id = id;
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list->resume = resume;
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kctl = snd_ctl_new1(knew, list);
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if (!kctl) {
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kfree(list);
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return -ENOMEM;
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}
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kctl->private_free = snd_usb_mixer_elem_free;
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return snd_usb_mixer_add_control(list, kctl);
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}
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/*
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* Sound Blaster remote control configuration
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*
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@ -271,84 +297,90 @@ static int snd_usb_soundblaster_remote_init(struct usb_mixer_interface *mixer)
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static int snd_audigy2nx_led_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
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{
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struct usb_mixer_interface *mixer = snd_kcontrol_chip(kcontrol);
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int index = kcontrol->private_value;
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ucontrol->value.integer.value[0] = mixer->audigy2nx_leds[index];
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ucontrol->value.integer.value[0] = kcontrol->private_value >> 8;
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return 0;
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}
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static int snd_audigy2nx_led_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
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static int snd_audigy2nx_led_update(struct usb_mixer_interface *mixer,
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int value, int index)
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{
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struct usb_mixer_interface *mixer = snd_kcontrol_chip(kcontrol);
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int index = kcontrol->private_value;
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int value = ucontrol->value.integer.value[0];
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int err, changed;
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struct snd_usb_audio *chip = mixer->chip;
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int err;
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if (value > 1)
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return -EINVAL;
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changed = value != mixer->audigy2nx_leds[index];
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down_read(&mixer->chip->shutdown_rwsem);
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if (mixer->chip->shutdown) {
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down_read(&chip->shutdown_rwsem);
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if (chip->shutdown) {
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err = -ENODEV;
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goto out;
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}
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if (mixer->chip->usb_id == USB_ID(0x041e, 0x3042))
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err = snd_usb_ctl_msg(mixer->chip->dev,
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usb_sndctrlpipe(mixer->chip->dev, 0), 0x24,
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if (chip->usb_id == USB_ID(0x041e, 0x3042))
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err = snd_usb_ctl_msg(chip->dev,
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usb_sndctrlpipe(chip->dev, 0), 0x24,
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USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
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!value, 0, NULL, 0);
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/* USB X-Fi S51 Pro */
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if (mixer->chip->usb_id == USB_ID(0x041e, 0x30df))
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err = snd_usb_ctl_msg(mixer->chip->dev,
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usb_sndctrlpipe(mixer->chip->dev, 0), 0x24,
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if (chip->usb_id == USB_ID(0x041e, 0x30df))
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err = snd_usb_ctl_msg(chip->dev,
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usb_sndctrlpipe(chip->dev, 0), 0x24,
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USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
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!value, 0, NULL, 0);
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else
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err = snd_usb_ctl_msg(mixer->chip->dev,
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usb_sndctrlpipe(mixer->chip->dev, 0), 0x24,
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err = snd_usb_ctl_msg(chip->dev,
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usb_sndctrlpipe(chip->dev, 0), 0x24,
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USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
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value, index + 2, NULL, 0);
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out:
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up_read(&mixer->chip->shutdown_rwsem);
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if (err < 0)
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return err;
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mixer->audigy2nx_leds[index] = value;
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return changed;
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up_read(&chip->shutdown_rwsem);
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return err;
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}
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static struct snd_kcontrol_new snd_audigy2nx_controls[] = {
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{
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.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
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.name = "CMSS LED Switch",
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.info = snd_audigy2nx_led_info,
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.get = snd_audigy2nx_led_get,
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.put = snd_audigy2nx_led_put,
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.private_value = 0,
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},
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{
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.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
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.name = "Power LED Switch",
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.info = snd_audigy2nx_led_info,
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.get = snd_audigy2nx_led_get,
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.put = snd_audigy2nx_led_put,
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.private_value = 1,
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},
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{
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.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
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.name = "Dolby Digital LED Switch",
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.info = snd_audigy2nx_led_info,
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.get = snd_audigy2nx_led_get,
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.put = snd_audigy2nx_led_put,
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.private_value = 2,
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},
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static int snd_audigy2nx_led_put(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol);
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struct usb_mixer_interface *mixer = list->mixer;
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int index = kcontrol->private_value & 0xff;
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int value = ucontrol->value.integer.value[0];
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int old_value = kcontrol->private_value >> 8;
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int err;
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if (value > 1)
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return -EINVAL;
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if (value == old_value)
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return 0;
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kcontrol->private_value = (value << 8) | index;
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err = snd_audigy2nx_led_update(mixer, value, index);
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return err < 0 ? err : 1;
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}
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static int snd_audigy2nx_led_resume(struct usb_mixer_elem_list *list)
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{
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int priv_value = list->kctl->private_value;
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return snd_audigy2nx_led_update(list->mixer, priv_value >> 8,
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priv_value & 0xff);
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}
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/* name and private_value are set dynamically */
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static struct snd_kcontrol_new snd_audigy2nx_control = {
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.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
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.info = snd_audigy2nx_led_info,
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.get = snd_audigy2nx_led_get,
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.put = snd_audigy2nx_led_put,
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};
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static const char * const snd_audigy2nx_led_names[] = {
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"CMSS LED Switch",
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"Power LED Switch",
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"Dolby Digital LED Switch",
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};
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static int snd_audigy2nx_controls_create(struct usb_mixer_interface *mixer)
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{
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int i, err;
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for (i = 0; i < ARRAY_SIZE(snd_audigy2nx_controls); ++i) {
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for (i = 0; i < ARRAY_SIZE(snd_audigy2nx_led_names); ++i) {
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struct snd_kcontrol_new knew;
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/* USB X-Fi S51 doesn't have a CMSS LED */
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if ((mixer->chip->usb_id == USB_ID(0x041e, 0x3042)) && i == 0)
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continue;
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@ -361,12 +393,16 @@ static int snd_audigy2nx_controls_create(struct usb_mixer_interface *mixer)
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mixer->chip->usb_id == USB_ID(0x041e, 0x30df) ||
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mixer->chip->usb_id == USB_ID(0x041e, 0x3048)))
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break;
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err = snd_ctl_add(mixer->chip->card,
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snd_ctl_new1(&snd_audigy2nx_controls[i], mixer));
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knew = snd_audigy2nx_control;
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knew.name = snd_audigy2nx_led_names[i];
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knew.private_value = (1 << 8) | i; /* LED on as default */
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err = add_single_ctl_with_resume(mixer, 0,
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snd_audigy2nx_led_resume,
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&knew, NULL);
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if (err < 0)
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return err;
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}
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mixer->audigy2nx_leds[1] = 1; /* Power LED is on by default */
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return 0;
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}
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