ALSA: usb-audio: more control quirks for M-Audio FastTrack devices

[pandora-kernel.git] / sound / usb / mixer_quirks.c

diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c
index 9146cff..3d0f487 100644 (file)
--- a/sound/usb/mixer_quirks.c
+++ b/sound/usb/mixer_quirks.c
@@ -40,6 +40,8 @@
 #include "mixer_quirks.h"
 #include "helper.h"
 
+extern struct snd_kcontrol_new *snd_usb_feature_unit_ctl;
+
 /*
  * Sound Blaster remote control configuration
  *
@@ -492,6 +494,69 @@ static int snd_nativeinstruments_create_mixer(struct usb_mixer_interface *mixer,
        return err;
 }
 
+/* M-Audio FastTrack Ultra quirks */
+
+/* private_free callback */
+static void usb_mixer_elem_free(struct snd_kcontrol *kctl)
+{
+       kfree(kctl->private_data);
+       kctl->private_data = NULL;
+}
+
+static int snd_maudio_ftu_create_ctl(struct usb_mixer_interface *mixer,
+                                    int in, int out, const char *name)
+{
+       struct usb_mixer_elem_info *cval;
+       struct snd_kcontrol *kctl;
+
+       cval = kzalloc(sizeof(*cval), GFP_KERNEL);
+       if (!cval)
+               return -ENOMEM;
+
+       cval->id = 5;
+       cval->mixer = mixer;
+       cval->val_type = USB_MIXER_S16;
+       cval->channels = 1;
+       cval->control = out + 1;
+       cval->cmask = 1 << in;
+
+       kctl = snd_ctl_new1(snd_usb_feature_unit_ctl, cval);
+       if (!kctl) {
+               kfree(cval);
+               return -ENOMEM;
+       }
+
+       snprintf(kctl->id.name, sizeof(kctl->id.name), name);
+       kctl->private_free = usb_mixer_elem_free;
+       return snd_usb_mixer_add_control(mixer, kctl);
+}
+
+static int snd_maudio_ftu_create_mixer(struct usb_mixer_interface *mixer)
+{
+       char name[64];
+       int in, out, err;
+
+       for (out = 0; out < 8; out++) {
+               for (in = 0; in < 8; in++) {
+                       snprintf(name, sizeof(name),
+                                "AIn%d - Out%d Capture Volume", in  + 1, out + 1);
+                       err = snd_maudio_ftu_create_ctl(mixer, in, out, name);
+                       if (err < 0)
+                               return err;
+               }
+
+               for (in = 8; in < 16; in++) {
+                       snprintf(name, sizeof(name),
+                                "DIn%d - Out%d Playback Volume", in - 7, out + 1);
+                       err = snd_maudio_ftu_create_ctl(mixer, in, out, name);
+                       if (err < 0)
+                               return err;
+               }
+       }
+
+       return 0;
+}
+
 void snd_emuusb_set_samplerate(struct snd_usb_audio *chip,
                               unsigned char samplerate_id)
 {
@@ -533,6 +598,11 @@ int snd_usb_mixer_apply_create_quirk(struct usb_mixer_interface *mixer)
                                              snd_audigy2nx_proc_read);
                break;
 
+       case USB_ID(0x0763, 0x2080): /* M-Audio Fast Track Ultra */
+       case USB_ID(0x0763, 0x2081): /* M-Audio Fast Track Ultra 8R */
+               err = snd_maudio_ftu_create_mixer(mixer);
+               break;
+
        case USB_ID(0x0b05, 0x1739):
        case USB_ID(0x0b05, 0x1743):
                err = snd_xonar_u1_controls_create(mixer);