From 2bfb14c3b8fbc787ff4478f9d77ecee78cb922fe Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Tue, 18 Nov 2014 16:18:15 +0100 Subject: ALSA: usb-audio: Add Xonar U1 resume support This time it's about Xonar U1: add the proper resume support for "Digital Playback Switch" element. Also, the status is moved into kcontrol private_value from usb_mixer_interface struct field. One more cut. Signed-off-by: Takashi Iwai --- sound/usb/mixer.h | 2 -- sound/usb/mixer_quirks.c | 66 ++++++++++++++++++++++++++++-------------------- 2 files changed, 38 insertions(+), 30 deletions(-) (limited to 'sound') diff --git a/sound/usb/mixer.h b/sound/usb/mixer.h index 0b3740ea6614..d3268f0ee2b3 100644 --- a/sound/usb/mixer.h +++ b/sound/usb/mixer.h @@ -22,8 +22,6 @@ struct usb_mixer_interface { struct urb *rc_urb; struct usb_ctrlrequest *rc_setup_packet; u8 rc_buffer[6]; - - u8 xonar_u1_status; }; #define MAX_CHANNELS 16 /* max logical channels */ diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c index f2b1c0d8ccd1..4afcf096ebb2 100644 --- a/sound/usb/mixer_quirks.c +++ b/sound/usb/mixer_quirks.c @@ -543,38 +543,52 @@ static int snd_emu0204_controls_create(struct usb_mixer_interface *mixer) static int snd_xonar_u1_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { - struct usb_mixer_interface *mixer = snd_kcontrol_chip(kcontrol); - - ucontrol->value.integer.value[0] = !!(mixer->xonar_u1_status & 0x02); + 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; + + down_read(&chip->shutdown_rwsem); + if (chip->shutdown) + err = -ENODEV; + else + 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); + up_read(&chip->shutdown_rwsem); + return err; +} + static int snd_xonar_u1_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { - struct usb_mixer_interface *mixer = snd_kcontrol_chip(kcontrol); + struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol); u8 old_status, new_status; - int err, changed; + int err; - old_status = mixer->xonar_u1_status; + old_status = kcontrol->private_value; if (ucontrol->value.integer.value[0]) new_status = old_status | 0x02; else new_status = old_status & ~0x02; - changed = new_status != old_status; - down_read(&mixer->chip->shutdown_rwsem); - if (mixer->chip->shutdown) - err = -ENODEV; - else - err = snd_usb_ctl_msg(mixer->chip->dev, - usb_sndctrlpipe(mixer->chip->dev, 0), 0x08, - USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER, - 50, 0, &new_status, 1); - up_read(&mixer->chip->shutdown_rwsem); - if (err < 0) - return err; - mixer->xonar_u1_status = new_status; - return changed; + 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 = { @@ -583,18 +597,14 @@ static struct snd_kcontrol_new snd_xonar_u1_output_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) { - int err; - - err = snd_ctl_add(mixer->chip->card, - snd_ctl_new1(&snd_xonar_u1_output_switch, mixer)); - if (err < 0) - return err; - mixer->xonar_u1_status = 0x05; - return 0; + 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) */ -- cgit v1.2.1