/*
Create and register the PCM device and mixer entries.
Create URBs for playback and capture.
*/
int line6_init_pcm(struct usb_line6 *line6,
struct line6_pcm_properties *properties)
{
static struct snd_device_ops pcm_ops = {
.dev_free = snd_line6_pcm_free,
};
int err;
int ep_read = 0, ep_write = 0;
struct snd_line6_pcm *line6pcm;
if (!(line6->properties->capabilities & LINE6_BIT_PCM))
return 0; /* skip PCM initialization and report success */
/* initialize PCM subsystem based on product id: */
switch (line6->product) {
case LINE6_DEVID_BASSPODXT:
case LINE6_DEVID_BASSPODXTLIVE:
case LINE6_DEVID_BASSPODXTPRO:
case LINE6_DEVID_PODXT:
case LINE6_DEVID_PODXTLIVE:
case LINE6_DEVID_PODXTPRO:
case LINE6_DEVID_PODHD300:
ep_read = 0x82;
ep_write = 0x01;
break;
case LINE6_DEVID_PODHD500:
case LINE6_DEVID_PODX3:
case LINE6_DEVID_PODX3LIVE:
ep_read = 0x86;
ep_write = 0x02;
break;
case LINE6_DEVID_POCKETPOD:
ep_read = 0x82;
ep_write = 0x02;
break;
case LINE6_DEVID_GUITARPORT:
case LINE6_DEVID_PODSTUDIO_GX:
case LINE6_DEVID_PODSTUDIO_UX1:
case LINE6_DEVID_PODSTUDIO_UX2:
case LINE6_DEVID_TONEPORT_GX:
case LINE6_DEVID_TONEPORT_UX1:
case LINE6_DEVID_TONEPORT_UX2:
ep_read = 0x82;
ep_write = 0x01;
break;
/* this is for interface_number == 1:
case LINE6_DEVID_TONEPORT_UX2:
case LINE6_DEVID_PODSTUDIO_UX2:
ep_read = 0x87;
ep_write = 0x00;
break;
*/
default:
MISSING_CASE;
}
line6pcm = kzalloc(sizeof(struct snd_line6_pcm), GFP_KERNEL);
if (line6pcm == NULL)
return -ENOMEM;
line6pcm->volume_playback[0] = line6pcm->volume_playback[1] = 255;
line6pcm->volume_monitor = 255;
line6pcm->line6 = line6;
line6pcm->ep_audio_read = ep_read;
line6pcm->ep_audio_write = ep_write;
/* Read and write buffers are sized identically, so choose minimum */
line6pcm->max_packet_size = min(
usb_maxpacket(line6->usbdev,
usb_rcvisocpipe(line6->usbdev, ep_read), 0),
usb_maxpacket(line6->usbdev,
usb_sndisocpipe(line6->usbdev, ep_write), 1));
line6pcm->properties = properties;
line6->line6pcm = line6pcm;
/* PCM device: */
err = snd_device_new(line6->card, SNDRV_DEV_PCM, line6, &pcm_ops);
if (err < 0)
return err;
snd_card_set_dev(line6->card, line6->ifcdev);
err = snd_line6_new_pcm(line6pcm);
if (err < 0)
return err;
spin_lock_init(&line6pcm->lock_audio_out);
spin_lock_init(&line6pcm->lock_audio_in);
spin_lock_init(&line6pcm->lock_trigger);
err = line6_create_audio_out_urbs(line6pcm);
if (err < 0)
return err;
err = line6_create_audio_in_urbs(line6pcm);
if (err < 0)
return err;
/* mixer: */
err =
snd_ctl_add(line6->card,
snd_ctl_new1(&line6_control_playback, line6pcm));
if (err < 0)
return err;
#ifdef CONFIG_LINE6_USB_IMPULSE_RESPONSE
/* impulse response test: */
err = device_create_file(line6->ifcdev, &dev_attr_impulse_volume);
if (err < 0)
return err;
err = device_create_file(line6->ifcdev, &dev_attr_impulse_period);
if (err < 0)
return err;
line6pcm->impulse_period = LINE6_IMPULSE_DEFAULT_PERIOD;
#endif
return 0;
}
/*
Create and register the PCM device and mixer entries.
Create URBs for playback and capture.
*/
int line6_init_pcm(struct usb_line6 *line6,
struct line6_pcm_properties *properties)
{
int i, err;
unsigned ep_read = line6->properties->ep_audio_r;
unsigned ep_write = line6->properties->ep_audio_w;
struct snd_pcm *pcm;
struct snd_line6_pcm *line6pcm;
if (!(line6->properties->capabilities & LINE6_CAP_PCM))
return 0; /* skip PCM initialization and report success */
err = snd_line6_new_pcm(line6, &pcm);
if (err < 0)
return err;
line6pcm = kzalloc(sizeof(*line6pcm), GFP_KERNEL);
if (!line6pcm)
return -ENOMEM;
mutex_init(&line6pcm->state_mutex);
line6pcm->pcm = pcm;
line6pcm->properties = properties;
line6pcm->volume_playback[0] = line6pcm->volume_playback[1] = 255;
line6pcm->volume_monitor = 255;
line6pcm->line6 = line6;
/* Read and write buffers are sized identically, so choose minimum */
line6pcm->max_packet_size = min(
usb_maxpacket(line6->usbdev,
usb_rcvisocpipe(line6->usbdev, ep_read), 0),
usb_maxpacket(line6->usbdev,
usb_sndisocpipe(line6->usbdev, ep_write), 1));
spin_lock_init(&line6pcm->out.lock);
spin_lock_init(&line6pcm->in.lock);
line6pcm->impulse_period = LINE6_IMPULSE_DEFAULT_PERIOD;
line6->line6pcm = line6pcm;
pcm->private_data = line6pcm;
pcm->private_free = line6_cleanup_pcm;
err = line6_create_audio_out_urbs(line6pcm);
if (err < 0)
return err;
err = line6_create_audio_in_urbs(line6pcm);
if (err < 0)
return err;
/* mixer: */
for (i = 0; i < ARRAY_SIZE(line6_controls); i++) {
err = snd_ctl_add(line6->card,
snd_ctl_new1(&line6_controls[i], line6pcm));
if (err < 0)
return err;
}
return 0;
}