/* 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; }