--- /dev/null
+/*
+ * Line6 Linux USB driver - 0.8.0
+ *
+ * Copyright (C) 2004-2009 Markus Grabner (grabner@icg.tugraz.at)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, version 2.
+ *
+ */
+
+#include "driver.h"
+
+#include <sound/core.h>
+#include <sound/control.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+
+#include "audio.h"
+#include "capture.h"
+#include "playback.h"
+#include "pod.h"
+
+
+/* trigger callback */
+int snd_line6_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+ struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream);
+ struct snd_pcm_substream *s;
+ int err;
+ unsigned long flags;
+
+ spin_lock_irqsave(&line6pcm->lock_trigger, flags);
+ clear_bit(BIT_PREPARED, &line6pcm->flags);
+
+ snd_pcm_group_for_each_entry(s, substream) {
+ switch (s->stream) {
+ case SNDRV_PCM_STREAM_PLAYBACK:
+ err = snd_line6_playback_trigger(s, cmd);
+
+ if (err < 0) {
+ spin_unlock_irqrestore(&line6pcm->lock_trigger,
+ flags);
+ return err;
+ }
+
+ break;
+
+ case SNDRV_PCM_STREAM_CAPTURE:
+ err = snd_line6_capture_trigger(s, cmd);
+
+ if (err < 0) {
+ spin_unlock_irqrestore(&line6pcm->lock_trigger,
+ flags);
+ return err;
+ }
+
+ break;
+
+ default:
+ dev_err(s2m(substream), "Unknown stream direction %d\n",
+ s->stream);
+ }
+ }
+
+ spin_unlock_irqrestore(&line6pcm->lock_trigger, flags);
+ return 0;
+}
+
+/* control info callback */
+static int snd_line6_control_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = 2;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = 256;
+ return 0;
+}
+
+/* control get callback */
+static int snd_line6_control_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ int i;
+ struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol);
+
+ for (i = 2; i--;)
+ ucontrol->value.integer.value[i] = line6pcm->volume[i];
+
+ return 0;
+}
+
+/* control put callback */
+static int snd_line6_control_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ int i, changed = 0;
+ struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol);
+
+ for (i = 2; i--;)
+ if (line6pcm->volume[i] != ucontrol->value.integer.value[i]) {
+ line6pcm->volume[i] = ucontrol->value.integer.value[i];
+ changed = 1;
+ }
+
+ return changed;
+}
+
+/* control definition */
+static struct snd_kcontrol_new line6_control = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "PCM Playback Volume",
+ .index = 0,
+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
+ .info = snd_line6_control_info,
+ .get = snd_line6_control_get,
+ .put = snd_line6_control_put
+};
+
+/*
+ Cleanup the PCM device.
+*/
+static void line6_cleanup_pcm(struct snd_pcm *pcm)
+{
+ int i;
+ struct snd_line6_pcm *line6pcm = snd_pcm_chip(pcm);
+
+ for (i = LINE6_ISO_BUFFERS; i--;) {
+ if (line6pcm->urb_audio_out[i]) {
+ usb_kill_urb(line6pcm->urb_audio_out[i]);
+ usb_free_urb(line6pcm->urb_audio_out[i]);
+ }
+ if (line6pcm->urb_audio_in[i]) {
+ usb_kill_urb(line6pcm->urb_audio_in[i]);
+ usb_free_urb(line6pcm->urb_audio_in[i]);
+ }
+ }
+}
+
+/* create a PCM device */
+static int snd_line6_new_pcm(struct snd_line6_pcm *line6pcm)
+{
+ struct snd_pcm *pcm;
+ int err;
+
+ err = snd_pcm_new(line6pcm->line6->card,
+ (char *)line6pcm->line6->properties->name,
+ 0, 1, 1, &pcm);
+ if (err < 0)
+ return err;
+
+ pcm->private_data = line6pcm;
+ pcm->private_free = line6_cleanup_pcm;
+ line6pcm->pcm = pcm;
+ strcpy(pcm->name, line6pcm->line6->properties->name);
+
+ /* set operators */
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_line6_playback_ops);
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_line6_capture_ops);
+
+ /* pre-allocation of buffers */
+ snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS,
+ snd_dma_continuous_data(GFP_KERNEL),
+ 64 * 1024, 128 * 1024);
+
+ return 0;
+}
+
+/* PCM device destructor */
+static int snd_line6_pcm_free(struct snd_device *device)
+{
+ 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)
+{
+ 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:
+ ep_read = 0x82;
+ ep_write = 0x01;
+ break;
+
+ 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_TONEPORT_GX:
+ ep_read = 0x82;
+ ep_write = 0x01;
+ break;
+
+ case LINE6_DEVID_TONEPORT_UX1:
+ ep_read = 0x00;
+ ep_write = 0x00;
+ break;
+
+ case LINE6_DEVID_TONEPORT_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[0] = line6pcm->volume[1] = 128;
+ line6pcm->line6 = line6;
+ line6pcm->ep_audio_read = ep_read;
+ line6pcm->ep_audio_write = ep_write;
+ line6pcm->max_packet_size = usb_maxpacket(line6->usbdev,
+ usb_rcvintpipe(line6->usbdev,
+ ep_read),
+ 0);
+ 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 = create_audio_out_urbs(line6pcm);
+ if (err < 0)
+ return err;
+
+ err = create_audio_in_urbs(line6pcm);
+ if (err < 0)
+ return err;
+
+ /* mixer: */
+ err = snd_ctl_add(line6->card, snd_ctl_new1(&line6_control, line6pcm));
+ if (err < 0)
+ return err;
+
+ return 0;
+}
+
+/* prepare pcm callback */
+int snd_line6_prepare(struct snd_pcm_substream *substream)
+{
+ struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream);
+
+ if (!test_and_set_bit(BIT_PREPARED, &line6pcm->flags)) {
+ unlink_wait_clear_audio_out_urbs(line6pcm);
+ line6pcm->pos_out = 0;
+ line6pcm->pos_out_done = 0;
+
+ unlink_wait_clear_audio_in_urbs(line6pcm);
+ line6pcm->bytes_out = 0;
+ line6pcm->pos_in_done = 0;
+ line6pcm->bytes_in = 0;
+ }
+
+ return 0;
+}
projects / linux-2.6-omap-h63xx.git / blobdiff