staging: line6: sync with upstream

Big upstream sync.
Signed-off-by: Markus Grabner <grabner@icg.tugraz.at>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/line6/Kconfig

-config LINE6_USB
+menuconfig LINE6_USB
 	tristate "Line6 USB support"
 	depends on USB && SND
 	select SND_RAWMIDI
@@ -18,5 +18,68 @@ config LINE6_USB
 	    * Signal routing (record clean/processed guitar signal,
 	      re-amping)
 
-	  Preliminary support for the Variax Workbench is included.
+	  Preliminary support for the Variax Workbench and TonePort
+	  devices is included.
 
+if LINE6_USB
+
+config LINE6_USB_DEBUG
+	bool "print debug messages"
+	default n
+	help
+	  Say Y here to write debug messages to the syslog.
+
+	  If unsure, say N.
+
+config LINE6_USB_DUMP_CTRL
+	bool "dump control messages"
+	default n
+	help
+	  Say Y here to write control messages sent to and received from
+	  Line6 devices to the syslog.
+
+	  If unsure, say N.
+
+config LINE6_USB_DUMP_MIDI
+	bool "dump MIDI messages"
+	default n
+	help
+	  Say Y here to write MIDI messages sent to and received from
+	  Line6 devices to the syslog.
+
+	  If unsure, say N.
+
+config LINE6_USB_DUMP_PCM
+	bool "dump PCM data"
+	default n
+	help
+	  Say Y here to write PCM data sent to and received from Line6
+	  devices to the syslog. This will produce a huge amount of
+	  syslog data during playback and capture.
+
+	  If unsure, say N.
+
+config LINE6_USB_RAW
+	bool "raw data communication"
+	default n
+	help
+	  Say Y here to create special files which allow to send raw data
+	  to the device. This bypasses any sanity checks, so if you discover
+	  the code to erase the firmware, feel free to render your device
+	  useless, but only after reading the GPL section "NO WARRANTY".
+
+	  If unsure, say N.
+
+config LINE6_USB_IMPULSE_RESPONSE
+	bool "measure impulse response"
+	default n
+	help
+	  Say Y here to add code to measure the impulse response of a Line6
+	  device. This is more accurate than user-space methods since it
+	  bypasses any PCM data buffering (e.g., by ALSA or jack). This is
+	  useful for assessing the performance of new devices, but is not
+	  required for normal operation.
+
+	  If unsure, say N.
+
+endif # LINE6_USB

drivers/staging/line6/audio.c

 /*
- * Line6 Linux USB driver - 0.8.0
+ * Line6 Linux USB driver - 0.9.0
  *
- * Copyright (C) 2004-2009 Markus Grabner (grabner@icg.tugraz.at)
+ * Copyright (C) 2004-2010 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
@@ -9,12 +9,12 @@
  *
  */
 
-#include "driver.h"
-#include "audio.h"
-
 #include <sound/core.h>
 #include <sound/initval.h>
 
+#include "driver.h"
+#include "audio.h"
+
 
 static int line6_index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
 static char *line6_id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
@@ -36,8 +36,9 @@ int line6_init_audio(struct usb_line6 *line6)
 
 	line6->card = card;
 
+	strcpy(card->id, line6->properties->id);
 	strcpy(card->driver, DRIVER_NAME);
-	strcpy(card->shortname, "Line6-USB");
+	strcpy(card->shortname, line6->properties->name);
 	sprintf(card->longname, "Line6 %s at USB %s", line6->properties->name,
 		dev_name(line6->ifcdev));  /* 80 chars - see asound.h */
 	return 0;

drivers/staging/line6/audio.h

 /*
- * Line6 Linux USB driver - 0.8.0
+ * Line6 Linux USB driver - 0.9.0
  *
- * Copyright (C) 2004-2009 Markus Grabner (grabner@icg.tugraz.at)
+ * Copyright (C) 2004-2010 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

drivers/staging/line6/capture.h

 /*
- * Line6 Linux USB driver - 0.8.0
+ * Line6 Linux USB driver - 0.9.0
  *
- * Copyright (C) 2004-2009 Markus Grabner (grabner@icg.tugraz.at)
+ * Copyright (C) 2004-2010 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
@@ -13,20 +13,21 @@
 #define CAPTURE_H
 
 
-#include "driver.h"
-
 #include <sound/pcm.h>
 
+#include "driver.h"
 #include "pcm.h"
 
 
 extern struct snd_pcm_ops snd_line6_capture_ops;
 
-
-extern int create_audio_in_urbs(struct snd_line6_pcm *line6pcm);
-extern int snd_line6_capture_trigger(struct snd_pcm_substream *substream,
-				     int cmd);
-extern void unlink_wait_clear_audio_in_urbs(struct snd_line6_pcm *line6pcm);
-
+extern void line6_capture_copy(struct snd_line6_pcm *line6pcm, char *fbuf,
+			       int fsize);
+extern int line6_create_audio_in_urbs(struct snd_line6_pcm *line6pcm);
+extern int line6_submit_audio_in_all_urbs(struct snd_line6_pcm *line6pcm);
+extern void line6_unlink_audio_in_urbs(struct snd_line6_pcm *line6pcm);
+extern void line6_unlink_wait_clear_audio_in_urbs(struct snd_line6_pcm
+						  *line6pcm);
+extern int snd_line6_capture_trigger(struct snd_line6_pcm *line6pcm, int cmd);
 
 #endif

drivers/staging/line6/control.c

 /*
- * Line6 Linux USB driver - 0.8.0
+ * Line6 Linux USB driver - 0.9.0
  *
- * Copyright (C) 2004-2009 Markus Grabner (grabner@icg.tugraz.at)
+ * Copyright (C) 2004-2010 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
@@ -9,11 +9,10 @@
  *
  */
 
-#include "driver.h"
-
 #include <linux/usb.h>
 
 #include "control.h"
+#include "driver.h"
 #include "pod.h"
 #include "usbdefs.h"
 #include "variax.h"
@@ -45,7 +44,7 @@ static ssize_t pod_get_param_int(struct device *dev, char *buf, int param)
 {
 	struct usb_interface *interface = to_usb_interface(dev);
 	struct usb_line6_pod *pod = usb_get_intfdata(interface);
-	int retval = line6_wait_dump(&pod->dumpreq, 0);
+	int retval = line6_dump_wait_interruptible(&pod->dumpreq);
 	if (retval < 0)
 		return retval;
 	return sprintf(buf, "%d\n", pod->prog_data.control[param]);
@@ -63,7 +62,7 @@ static ssize_t pod_set_param_int(struct device *dev, const char *buf,
 	if (retval)
 		return retval;
 
-	pod_transmit_parameter(pod, param, value);
+	line6_pod_transmit_parameter(pod, param, value);
 	return count;
 }
 
@@ -71,7 +70,7 @@ static ssize_t variax_get_param_int(struct device *dev, char *buf, int param)
 {
 	struct usb_interface *interface = to_usb_interface(dev);
 	struct usb_line6_variax *variax = usb_get_intfdata(interface);
-	int retval = line6_wait_dump(&variax->dumpreq, 0);
+	int retval = line6_dump_wait_interruptible(&variax->dumpreq);
 	if (retval < 0)
 		return retval;
 	return sprintf(buf, "%d\n", variax->model_data.control[param]);
@@ -80,12 +79,11 @@ static ssize_t variax_get_param_int(struct device *dev, char *buf, int param)
 static ssize_t variax_get_param_float(struct device *dev, char *buf, int param)
 {
 	/*
-	   We do our own floating point handling here since floats in the
-	   kernel are problematic for at least two reasons: - many distros
-	   are still shipped with binary kernels optimized for the ancient
-	   80386 without FPU
-	   - there isn't a printf("%f")
-	   (see http://www.kernelthread.com/publications/faq/335.html)
+	   We do our own floating point handling here since at the time
+	   this code was written (Jan 2006) it was highly discouraged to
+	   use floating point arithmetic in the kernel. If you think that
+	   this no longer applies, feel free to replace this by generic
+	   floating point code.
 	 */
 
 	static const int BIAS = 0x7f;
@@ -97,7 +95,7 @@ static ssize_t variax_get_param_float(struct device *dev, char *buf, int param)
 	struct usb_interface *interface = to_usb_interface(dev);
 	struct usb_line6_variax *variax = usb_get_intfdata(interface);
 	const unsigned char *p = variax->model_data.control + param;
-	int retval = line6_wait_dump(&variax->dumpreq, 0);
+	int retval = line6_dump_wait_interruptible(&variax->dumpreq);
 	if (retval < 0)
 		return retval;
 
@@ -530,7 +528,7 @@ static DEVICE_ATTR(mix1, S_IRUGO, variax_get_mix1, line6_nop_write);
 static DEVICE_ATTR(pickup_wiring, S_IRUGO, variax_get_pickup_wiring,
 		   line6_nop_write);
 
-int pod_create_files(int firmware, int type, struct device *dev)
+int line6_pod_create_files(int firmware, int type, struct device *dev)
 {
 	int err;
 	CHECK_RETURN(device_create_file(dev, &dev_attr_tweak));
@@ -733,9 +731,10 @@ int pod_create_files(int firmware, int type, struct device *dev)
 				     (dev, &dev_attr_band_6_gain__bass));
 	return 0;
 }
-EXPORT_SYMBOL(pod_create_files);
 
-void pod_remove_files(int firmware, int type, struct device *dev)
+EXPORT_SYMBOL(line6_pod_create_files);
+
+void line6_pod_remove_files(int firmware, int type, struct device *dev)
 {
 	device_remove_file(dev, &dev_attr_tweak);
 	device_remove_file(dev, &dev_attr_wah_position);
@@ -908,9 +907,10 @@ void pod_remove_files(int firmware, int type, struct device *dev)
 		if (firmware >= 200)
 			device_remove_file(dev, &dev_attr_band_6_gain__bass);
 }
-EXPORT_SYMBOL(pod_remove_files);
 
-int variax_create_files(int firmware, int type, struct device *dev)
+EXPORT_SYMBOL(line6_pod_remove_files);
+
+int line6_variax_create_files(int firmware, int type, struct device *dev)
 {
 	int err;
 	CHECK_RETURN(device_create_file(dev, &dev_attr_body));
@@ -954,9 +954,10 @@ int variax_create_files(int firmware, int type, struct device *dev)
 	CHECK_RETURN(device_create_file(dev, &dev_attr_pickup_wiring));
 	return 0;
 }
-EXPORT_SYMBOL(variax_create_files);
 
-void variax_remove_files(int firmware, int type, struct device *dev)
+EXPORT_SYMBOL(line6_variax_create_files);
+
+void line6_variax_remove_files(int firmware, int type, struct device *dev)
 {
 	device_remove_file(dev, &dev_attr_body);
 	device_remove_file(dev, &dev_attr_pickup1_enable);
@@ -998,4 +999,5 @@ void variax_remove_files(int firmware, int type, struct device *dev)
 	device_remove_file(dev, &dev_attr_mix1);
 	device_remove_file(dev, &dev_attr_pickup_wiring);
 }
-EXPORT_SYMBOL(variax_remove_files);
+
+EXPORT_SYMBOL(line6_variax_remove_files);

drivers/staging/line6/driver.h

 /*
- * Line6 Linux USB driver - 0.8.0
+ * Line6 Linux USB driver - 0.9.0
  *
- * Copyright (C) 2004-2009 Markus Grabner (grabner@icg.tugraz.at)
+ * Copyright (C) 2004-2010 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
@@ -13,23 +13,24 @@
 #define DRIVER_H
 
 
-#include "config.h"
-
 #include <linux/spinlock.h>
 #include <linux/usb.h>
-#include <linux/wait.h>
 #include <sound/core.h>
 
 #include "midi.h"
 
+
 #define DRIVER_NAME "line6usb"
 
+#if defined(CONFIG_LINE6_USB_DUMP_CTRL) || defined(CONFIG_LINE6_USB_DUMP_MIDI) || defined(CONFIG_LINE6_USB_DUMP_PCM)
+#define CONFIG_LINE6_USB_DUMP_ANY
+#endif
+
 #define LINE6_TIMEOUT 1
 #define LINE6_MAX_DEVICES 8
 #define LINE6_BUFSIZE_LISTEN 32
 #define LINE6_MESSAGE_MAXLEN 256
 
-
 /*
 	Line6 MIDI control commands
 */
@@ -54,6 +55,12 @@
 
 #define LINE6_CHANNEL_MASK 0x0f
 
+#ifdef CONFIG_LINE6_USB_DEBUG
+#define DEBUG_MESSAGES(x) (x)
+#else
+#define DEBUG_MESSAGES(x)
+#endif
+
 
 #define MISSING_CASE	\
 	printk(KERN_ERR "line6usb driver bug: missing case in %s:%d\n", \
@@ -67,10 +74,14 @@ do {				\
 		return err;	\
 } while (0)
 
+#define CHECK_STARTUP_PROGRESS(x, n)	   \
+	if((x) >= (n))			   \
+		return;			   \
+	x = (n);
+
 
 extern const unsigned char line6_midi_id[3];
 extern struct usb_line6 *line6_devices[LINE6_MAX_DEVICES];
-extern struct workqueue_struct *line6_workqueue;
 
 static const int SYSEX_DATA_OFS = sizeof(line6_midi_id) + 3;
 static const int SYSEX_EXTRA_SIZE = sizeof(line6_midi_id) + 4;
@@ -80,8 +91,27 @@ static const int SYSEX_EXTRA_SIZE = sizeof(line6_midi_id) + 4;
 	 Common properties of Line6 devices.
 */
 struct line6_properties {
+	/**
+		 Card id string (maximum 16 characters).
+		 This can be used to address the device in ALSA programs as
+		 "default:CARD=<id>"
+	*/
+	const char *id;
+
+	/**
+		 Card short name (maximum 32 characters).
+	*/
 	const char *name;
+
+	/**
+		 Bit identifying this device in the line6usb driver.
+	*/
 	int device_bit;
+
+	/**
+		 Bit vector defining this device's capabilities in the
+		 line6usb driver.
+	*/
 	int capabilities;
 };
 
@@ -191,14 +221,22 @@ extern int line6_send_raw_message_async(struct usb_line6 *line6,
 					const char *buffer, int size);
 extern int line6_send_sysex_message(struct usb_line6 *line6,
 				    const char *buffer, int size);
+extern int line6_send_sysex_message_async(struct usb_line6 *line6,
+					  const char *buffer, int size);
 extern ssize_t line6_set_raw(struct device *dev, struct device_attribute *attr,
 			     const char *buf, size_t count);
+extern void line6_start_timer(struct timer_list *timer, unsigned int msecs,
+			      void (*function)(unsigned long), unsigned long data);
 extern int line6_transmit_parameter(struct usb_line6 *line6, int param,
 				    int value);
+extern int line6_version_request_async(struct usb_line6 *line6);
 extern int line6_write_data(struct usb_line6 *line6, int address, void *data,
 			    size_t datalen);
+
+#ifdef CONFIG_LINE6_USB_DUMP_ANY
 extern void line6_write_hexdump(struct usb_line6 *line6, char dir,
 				const unsigned char *buffer, int size);
+#endif
 
 
 #endif

drivers/staging/line6/dumprequest.c

 /*
- * Line6 Linux USB driver - 0.8.0
+ * Line6 Linux USB driver - 0.9.0
  *
- * Copyright (C) 2004-2009 Markus Grabner (grabner@icg.tugraz.at)
+ * Copyright (C) 2004-2010 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
@@ -9,10 +9,9 @@
  *
  */
 
-#include "driver.h"
-
 #include <linux/slab.h>
 
+#include "driver.h"
 #include "dumprequest.h"
 
 
@@ -39,17 +38,17 @@ void line6_invalidate_current(struct line6_dump_request *l6dr)
 void line6_dump_finished(struct line6_dump_request *l6dr)
 {
 	l6dr->in_progress = LINE6_DUMP_NONE;
-	wake_up_interruptible(&l6dr->wait);
+	wake_up(&l6dr->wait);
 }
 
 /*
 	Send an asynchronous channel dump request.
 */
 int line6_dump_request_async(struct line6_dump_request *l6dr,
-			     struct usb_line6 *line6, int num)
+			     struct usb_line6 *line6, int num, int dest)
 {
 	int ret;
-	line6_invalidate_current(l6dr);
+	line6_dump_started(l6dr, dest);
 	ret = line6_send_raw_message_async(line6, l6dr->reqbufs[num].buffer,
 					   l6dr->reqbufs[num].length);
 
@@ -60,43 +59,27 @@ int line6_dump_request_async(struct line6_dump_request *l6dr,
 }
 
 /*
-	Send an asynchronous dump request after a given interval.
+	Wait for completion (interruptible).
 */
-void line6_startup_delayed(struct line6_dump_request *l6dr, int seconds,
-			   void (*function)(unsigned long), void *data)
+int line6_dump_wait_interruptible(struct line6_dump_request *l6dr)
 {
-	l6dr->timer.expires = jiffies + seconds * HZ;
-	l6dr->timer.function = function;
-	l6dr->timer.data = (unsigned long)data;
-	add_timer(&l6dr->timer);
+	return wait_event_interruptible(l6dr->wait, l6dr->in_progress == LINE6_DUMP_NONE);
 }
 
 /*
 	Wait for completion.
 */
-int line6_wait_dump(struct line6_dump_request *l6dr, int nonblock)
+void line6_dump_wait(struct line6_dump_request *l6dr)
+{
+	wait_event(l6dr->wait, l6dr->in_progress == LINE6_DUMP_NONE);
+}
+
+/*
+	Wait for completion (with timeout).
+*/
+int line6_dump_wait_timeout(struct line6_dump_request *l6dr, long timeout)
 {
-	int retval = 0;
-	DECLARE_WAITQUEUE(wait, current);
-	add_wait_queue(&l6dr->wait, &wait);
-	current->state = TASK_INTERRUPTIBLE;
-
-	while (l6dr->in_progress) {
-		if (nonblock) {
-			retval = -EAGAIN;
-			break;
-		}
-
-		if (signal_pending(current)) {
-			retval = -ERESTARTSYS;
-			break;
-		} else
-			schedule();
-	}
-
-	current->state = TASK_RUNNING;
-	remove_wait_queue(&l6dr->wait, &wait);
-	return retval;
+	return wait_event_timeout(l6dr->wait, l6dr->in_progress == LINE6_DUMP_NONE, timeout);
 }
 
 /*
@@ -123,7 +106,6 @@ int line6_dumpreq_init(struct line6_dump_request *l6dr, const void *buf,
 	if (ret < 0)
 		return ret;
 	init_waitqueue_head(&l6dr->wait);
-	init_timer(&l6dr->timer);
 	return 0;
 }
 
@@ -148,6 +130,4 @@ void line6_dumpreq_destruct(struct line6_dump_request *l6dr)
 	if (l6dr->reqbufs[0].buffer == NULL)
 		return;
 	line6_dumpreq_destructbuf(l6dr, 0);
-	l6dr->ok = 1;
-	del_timer_sync(&l6dr->timer);
 }

drivers/staging/line6/dumprequest.h

 /*
- * Line6 Linux USB driver - 0.8.0
+ * Line6 Linux USB driver - 0.9.0
  *
- * Copyright (C) 2004-2009 Markus Grabner (grabner@icg.tugraz.at)
+ * Copyright (C) 2004-2010 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
@@ -15,7 +15,6 @@
 
 #include <linux/usb.h>
 #include <linux/wait.h>
-
 #include <sound/core.h>
 
 
@@ -55,16 +54,6 @@ struct line6_dump_request {
 	*/
 	int in_progress;
 
-	/**
-		 Timer for delayed dump request.
-	*/
-	struct timer_list timer;
-
-	/**
-		 Flag if initial dump request has been successful.
-	*/
-	char ok;
-
 	/**
 		 Dump request buffers
 	*/
@@ -73,7 +62,7 @@ struct line6_dump_request {
 
 extern void line6_dump_finished(struct line6_dump_request *l6dr);
 extern int line6_dump_request_async(struct line6_dump_request *l6dr,
-				    struct usb_line6 *line6, int num);
+				    struct usb_line6 *line6, int num, int dest);
 extern void line6_dump_started(struct line6_dump_request *l6dr, int dest);
 extern void line6_dumpreq_destruct(struct line6_dump_request *l6dr);
 extern void line6_dumpreq_destructbuf(struct line6_dump_request *l6dr, int num);
@@ -82,9 +71,10 @@ extern int line6_dumpreq_init(struct line6_dump_request *l6dr, const void *buf,
 extern int line6_dumpreq_initbuf(struct line6_dump_request *l6dr,
 				 const void *buf, size_t len, int num);
 extern void line6_invalidate_current(struct line6_dump_request *l6dr);
-extern void line6_startup_delayed(struct line6_dump_request *l6dr, int seconds,
-				  void (*function)(unsigned long), void *data);
-extern int line6_wait_dump(struct line6_dump_request *l6dr, int nonblock);
+extern void line6_dump_wait(struct line6_dump_request *l6dr);
+extern int line6_dump_wait_interruptible(struct line6_dump_request *l6dr);
+extern int line6_dump_wait_timeout(struct line6_dump_request *l6dr,
+				   long timeout);
 
 
 #endif

drivers/staging/line6/midi.c

 /*
- * Line6 Linux USB driver - 0.8.0
+ * Line6 Linux USB driver - 0.9.0
  *
- * Copyright (C) 2004-2009 Markus Grabner (grabner@icg.tugraz.at)
+ * Copyright (C) 2004-2010 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
@@ -9,24 +9,18 @@
  *
  */
 
-#include "driver.h"
-
-#include <linux/usb.h>
 #include <linux/slab.h>
-
+#include <linux/usb.h>
 #include <sound/core.h>
 #include <sound/rawmidi.h>
 
 #include "audio.h"
+#include "driver.h"
 #include "midi.h"
 #include "pod.h"
 #include "usbdefs.h"
 
 
-#define USE_MIDIBUF      1
-#define OUTPUT_DUMP_ONLY 0
-
-
 #define line6_rawmidi_substream_midi(substream) \
 	((struct snd_line6_midi *)((substream)->rmidi->private_data))
 
@@ -61,26 +55,26 @@ static void line6_midi_transmit(struct snd_rawmidi_substream *substream)
 	spin_lock_irqsave(&line6->line6midi->midi_transmit_lock, flags);
 
 	for (;;) {
-		req = min(midibuf_bytes_free(mb), line6->max_packet_size);
+		req = min(line6_midibuf_bytes_free(mb), line6->max_packet_size);
 		done = snd_rawmidi_transmit_peek(substream, chunk, req);
 
 		if (done == 0)
 			break;
 
-#if DO_DUMP_MIDI_SEND
+#ifdef CONFIG_LINE6_USB_DUMP_MIDI
 		line6_write_hexdump(line6, 's', chunk, done);
 #endif
-		midibuf_write(mb, chunk, done);
+		line6_midibuf_write(mb, chunk, done);
 		snd_rawmidi_transmit_ack(substream, done);
 	}
 
 	for (;;) {
-		done = midibuf_read(mb, chunk, line6->max_packet_size);
+		done = line6_midibuf_read(mb, chunk, line6->max_packet_size);
 
 		if (done == 0)
 			break;
 
-		if (midibuf_skip_message(mb, line6midi->midi_mask_transmit))
+		if (line6_midibuf_skip_message(mb, line6midi->midi_mask_transmit))
 			continue;
 
 		send_midi_async(line6, chunk, done);
@@ -115,7 +109,7 @@ static void midi_sent(struct urb *urb)
 	}
 
 	if (num == 0)
-		wake_up_interruptible(&line6->line6midi->send_wait);
+		wake_up(&line6->line6midi->send_wait);
 
 	spin_unlock_irqrestore(&line6->line6midi->send_urb_lock, flags);
 }
@@ -139,7 +133,7 @@ static int send_midi_async(struct usb_line6 *line6, unsigned char *data,
 		return -ENOMEM;
 	}
 
-#if DO_DUMP_URB_SEND
+#ifdef CONFIG_LINE6_USB_DUMP_CTRL
 	line6_write_hexdump(line6, 'S', data, length);
 #endif
 
@@ -176,8 +170,8 @@ static int send_midi_async(struct usb_line6 *line6, unsigned char *data,
 	case LINE6_DEVID_PODXTLIVE:
 	case LINE6_DEVID_PODXTPRO:
 	case LINE6_DEVID_POCKETPOD:
-		pod_midi_postprocess((struct usb_line6_pod *)line6, data,
-				     length);
+		line6_pod_midi_postprocess((struct usb_line6_pod *)line6, data,
+					   length);
 		break;
 
 	default:
@@ -215,19 +209,8 @@ static void line6_midi_output_trigger(struct snd_rawmidi_substream *substream,
 static void line6_midi_output_drain(struct snd_rawmidi_substream *substream)
 {
 	struct usb_line6 *line6 = line6_rawmidi_substream_midi(substream)->line6;
-	wait_queue_head_t *head = &line6->line6midi->send_wait;
-	DECLARE_WAITQUEUE(wait, current);
-	add_wait_queue(head, &wait);
-	current->state = TASK_INTERRUPTIBLE;
-
-	while (line6->line6midi->num_active_send_urbs > 0)
-		if (signal_pending(current))
-			break;
-		else
-			schedule();
-
-	current->state = TASK_RUNNING;
-	remove_wait_queue(head, &wait);
+	struct snd_line6_midi *midi = line6->line6midi;
+	wait_event_interruptible(midi->send_wait, midi->num_active_send_urbs == 0);
 }
 
 static int line6_midi_input_open(struct snd_rawmidi_substream *substream)
@@ -284,6 +267,7 @@ static int snd_line6_new_midi(struct snd_line6_midi *line6midi)
 
 	rmidi->private_data = line6midi;
 	rmidi->private_free = line6_cleanup_midi;
+	strcpy(rmidi->id, line6midi->line6->properties->id);
 	strcpy(rmidi->name, line6midi->line6->properties->name);
 
 	rmidi->info_flags =
@@ -371,8 +355,8 @@ static int snd_line6_midi_free(struct snd_device *device)
 	struct snd_line6_midi *line6midi = device->device_data;
 	device_remove_file(line6midi->line6->ifcdev, &dev_attr_midi_mask_transmit);
 	device_remove_file(line6midi->line6->ifcdev, &dev_attr_midi_mask_receive);
-	midibuf_destroy(&line6midi->midibuf_in);
-	midibuf_destroy(&line6midi->midibuf_out);
+	line6_midibuf_destroy(&line6midi->midibuf_in);
+	line6_midibuf_destroy(&line6midi->midibuf_out);
 	return 0;
 }
 
@@ -396,11 +380,11 @@ int line6_init_midi(struct usb_line6 *line6)
 	if (line6midi == NULL)
 		return -ENOMEM;
 
-	err = midibuf_init(&line6midi->midibuf_in, MIDI_BUFFER_SIZE, 0);
+	err = line6_midibuf_init(&line6midi->midibuf_in, MIDI_BUFFER_SIZE, 0);
 	if (err < 0)
 		return err;
 
-	err = midibuf_init(&line6midi->midibuf_out, MIDI_BUFFER_SIZE, 1);
+	err = line6_midibuf_init(&line6midi->midibuf_out, MIDI_BUFFER_SIZE, 1);
 	if (err < 0)
 		return err;
 

drivers/staging/line6/midi.h

 /*
- * Line6 Linux USB driver - 0.8.0
+ * Line6 Linux USB driver - 0.9.0
  *
- * Copyright (C) 2004-2009 Markus Grabner (grabner@icg.tugraz.at)
+ * Copyright (C) 2004-2010 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

drivers/staging/line6/midibuf.c

 /*
- * Line6 Linux USB driver - 0.8.0
+ * Line6 Linux USB driver - 0.9.0
  *
- * Copyright (C) 2004-2009 Markus Grabner (grabner@icg.tugraz.at)
+ * Copyright (C) 2004-2010 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
@@ -9,8 +9,6 @@
  *
  */
 
-#include "config.h"
-
 #include <linux/slab.h>
 
 #include "midibuf.h"
@@ -25,9 +23,9 @@ static int midibuf_message_length(unsigned char code)
 		return length[(code >> 4) - 8];
 	} else {
 		/*
-			Note that according to the MIDI specification 0xf2 is
-			the "Song Position Pointer", but this is used by Line6
-			to send sysex messages to the host.
+		  Note that according to the MIDI specification 0xf2 is
+		  the "Song Position Pointer", but this is used by Line6
+		  to send sysex messages to the host.
 		*/
 		static const int length[] = { -1, 2, -1, 2, -1, -1, 1, 1, 1, 1,
 					       1, 1, 1, -1, 1, 1 };
@@ -35,13 +33,23 @@ static int midibuf_message_length(unsigned char code)
 	}
 }
 
-void midibuf_reset(struct MidiBuffer *this)
+static int midibuf_is_empty(struct MidiBuffer *this)
+{
+	return (this->pos_read == this->pos_write) && !this->full;
+}
+
+static int midibuf_is_full(struct MidiBuffer *this)
+{
+	return this->full;
+}
+
+void line6_midibuf_reset(struct MidiBuffer *this)
 {
 	this->pos_read = this->pos_write = this->full = 0;
 	this->command_prev = -1;
 }
 
-int midibuf_init(struct MidiBuffer *this, int size, int split)
+int line6_midibuf_init(struct MidiBuffer *this, int size, int split)
 {
 	this->buf = kmalloc(size, GFP_KERNEL);
 
@@ -50,28 +58,18 @@ int midibuf_init(struct MidiBuffer *this, int size, int split)
 
 	this->size = size;
 	this->split = split;
-	midibuf_reset(this);
+	line6_midibuf_reset(this);
 	return 0;
 }
 
-void midibuf_status(struct MidiBuffer *this)
+void line6_midibuf_status(struct MidiBuffer *this)
 {
 	printk(KERN_DEBUG "midibuf size=%d split=%d pos_read=%d pos_write=%d "
 	       "full=%d command_prev=%02x\n", this->size, this->split,
 	       this->pos_read, this->pos_write, this->full, this->command_prev);
 }
 
-static int midibuf_is_empty(struct MidiBuffer *this)
-{
-	return (this->pos_read == this->pos_write) && !this->full;
-}
-
-static int midibuf_is_full(struct MidiBuffer *this)
-{
-	return this->full;
-}
-
-int midibuf_bytes_free(struct MidiBuffer *this)
+int line6_midibuf_bytes_free(struct MidiBuffer *this)
 {
 	return
 		midibuf_is_full(this) ?
@@ -79,7 +77,7 @@ int midibuf_bytes_free(struct MidiBuffer *this)
 		(this->pos_read - this->pos_write + this->size - 1) % this->size + 1;
 }
 
-int midibuf_bytes_used(struct MidiBuffer *this)
+int line6_midibuf_bytes_used(struct MidiBuffer *this)
 {
 	return
 		midibuf_is_empty(this) ?
@@ -87,7 +85,7 @@ int midibuf_bytes_used(struct MidiBuffer *this)
 		(this->pos_write - this->pos_read + this->size - 1) % this->size + 1;
 }
 
-int midibuf_write(struct MidiBuffer *this, unsigned char *data, int length)
+int line6_midibuf_write(struct MidiBuffer *this, unsigned char *data, int length)
 {
 	int bytes_free;
 	int length1, length2;
@@ -102,7 +100,7 @@ int midibuf_write(struct MidiBuffer *this, unsigned char *data, int length)
 		skip_active_sense = 1;
 	}
 
-	bytes_free = midibuf_bytes_free(this);
+	bytes_free = line6_midibuf_bytes_free(this);
 
 	if (length > bytes_free)
 		length = bytes_free;
@@ -129,7 +127,7 @@ int midibuf_write(struct MidiBuffer *this, unsigned char *data, int length)
 	return length + skip_active_sense;
 }
 
-int midibuf_read(struct MidiBuffer *this, unsigned char *data, int length)
+int line6_midibuf_read(struct MidiBuffer *this, unsigned char *data, int length)
 {
 	int bytes_used;
 	int length1, length2;
@@ -145,7 +143,7 @@ int midibuf_read(struct MidiBuffer *this, unsigned char *data, int length)
 	if (midibuf_is_empty(this))
 		return 0;
 
-	bytes_used = midibuf_bytes_used(this);
+	bytes_used = line6_midibuf_bytes_used(this);
 
 	if (length > bytes_used)
 		length = bytes_used;
@@ -232,9 +230,9 @@ int midibuf_read(struct MidiBuffer *this, unsigned char *data, int length)
 	return length + repeat;
 }
 
-int midibuf_ignore(struct MidiBuffer *this, int length)
+int line6_midibuf_ignore(struct MidiBuffer *this, int length)
 {
-	int bytes_used = midibuf_bytes_used(this);
+	int bytes_used = line6_midibuf_bytes_used(this);
 
 	if (length > bytes_used)
 		length = bytes_used;
@@ -244,7 +242,7 @@ int midibuf_ignore(struct MidiBuffer *this, int length)
 	return length;
 }
 
-int midibuf_skip_message(struct MidiBuffer *this, unsigned short mask)
+int line6_midibuf_skip_message(struct MidiBuffer *this, unsigned short mask)
 {
 	int cmd = this->command_prev;
 
@@ -255,7 +253,7 @@ int midibuf_skip_message(struct MidiBuffer *this, unsigned short mask)
 	return 0;
 }
 
-void midibuf_destroy(struct MidiBuffer *this)
+void line6_midibuf_destroy(struct MidiBuffer *this)
 {
 	kfree(this->buf);
 	this->buf = NULL;

drivers/staging/line6/midibuf.h

 /*
- * Line6 Linux USB driver - 0.8.0
+ * Line6 Linux USB driver - 0.9.0
  *
- * Copyright (C) 2004-2009 Markus Grabner (grabner@icg.tugraz.at)
+ * Copyright (C) 2004-2010 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
@@ -23,17 +23,17 @@ struct MidiBuffer {
 };
 
 
-extern int midibuf_bytes_used(struct MidiBuffer *mb);
-extern int midibuf_bytes_free(struct MidiBuffer *mb);
-extern void midibuf_destroy(struct MidiBuffer *mb);
-extern int midibuf_ignore(struct MidiBuffer *mb, int length);
-extern int midibuf_init(struct MidiBuffer *mb, int size, int split);
-extern int midibuf_read(struct MidiBuffer *mb, unsigned char *data, int length);
-extern void midibuf_reset(struct MidiBuffer *mb);
-extern int midibuf_skip_message(struct MidiBuffer *mb, unsigned short mask);
-extern void midibuf_status(struct MidiBuffer *mb);
-extern int midibuf_write(struct MidiBuffer *mb, unsigned char *data,
-			 int length);
+extern int line6_midibuf_bytes_used(struct MidiBuffer *mb);
+extern int line6_midibuf_bytes_free(struct MidiBuffer *mb);
+extern void line6_midibuf_destroy(struct MidiBuffer *mb);
+extern int line6_midibuf_ignore(struct MidiBuffer *mb, int length);
+extern int line6_midibuf_init(struct MidiBuffer *mb, int size, int split);
+extern int line6_midibuf_read(struct MidiBuffer *mb, unsigned char *data, int length);
+extern void line6_midibuf_reset(struct MidiBuffer *mb);
+extern int line6_midibuf_skip_message(struct MidiBuffer *mb, unsigned short mask);
+extern void line6_midibuf_status(struct MidiBuffer *mb);
+extern int line6_midibuf_write(struct MidiBuffer *mb, unsigned char *data,
+			       int length);
 
 
 #endif

drivers/staging/line6/pcm.h

 /*
- * Line6 Linux USB driver - 0.8.0
+ * Line6 Linux USB driver - 0.9.0
  *
- * Copyright (C) 2004-2009 Markus Grabner (grabner@icg.tugraz.at)
+ * Copyright (C) 2004-2010 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
@@ -24,30 +24,79 @@
 
 
 /* number of URBs */
-#define LINE6_ISO_BUFFERS	8
+#define LINE6_ISO_BUFFERS	2
 
-/* number of USB frames per URB */
-#define LINE6_ISO_PACKETS	2
+/*
+	number of USB frames per URB
+	The Line6 Windows driver always transmits two frames per packet, but
+	the Linux driver performs significantly better (i.e., lower latency)
+	with only one frame per packet.
+*/
+#define LINE6_ISO_PACKETS	1
 
 /* in a "full speed" device (such as the PODxt Pro) this means 1ms */
 #define LINE6_ISO_INTERVAL	1
 
-/* this should be queried dynamically from the USB interface! */
-#define LINE6_ISO_PACKET_SIZE_MAX	252
+#ifdef CONFIG_LINE6_USB_IMPULSE_RESPONSE
+#define LINE6_IMPULSE_DEFAULT_PERIOD 100
+#endif
+
+#define LINE6_BACKUP_MONITOR_SIGNAL 0
+#define LINE6_REUSE_DMA_AREA_FOR_PLAYBACK 0
 
 
 /*
-	Extract the messaging device from the substream instance
+	Get substream from Line6 PCM data structure
 */
-#define s2m(s)	(((struct snd_line6_pcm *) \
-		   snd_pcm_substream_chip(s))->line6->ifcdev)
+#define get_substream(line6pcm, stream) (line6pcm->pcm->streams[stream].substream)
 
 
+/*
+	PCM mode bits and masks.
+	"ALSA": operations triggered by applications via ALSA
+	"MONITOR": software monitoring
+	"IMPULSE": optional impulse response operation
+*/
 enum {
-	BIT_RUNNING_PLAYBACK,
-	BIT_RUNNING_CAPTURE,
+	/* individual bits: */
+	BIT_PCM_ALSA_PLAYBACK,
+	BIT_PCM_ALSA_CAPTURE,
+	BIT_PCM_MONITOR_PLAYBACK,
+	BIT_PCM_MONITOR_CAPTURE,
+#ifdef CONFIG_LINE6_USB_IMPULSE_RESPONSE
+	BIT_PCM_IMPULSE_PLAYBACK,
+	BIT_PCM_IMPULSE_CAPTURE,
+#endif
 	BIT_PAUSE_PLAYBACK,
-	BIT_PREPARED
+	BIT_PREPARED,
+
+	/* individual masks: */
+	MASK_PCM_ALSA_PLAYBACK    = 1 << BIT_PCM_ALSA_PLAYBACK,
+	MASK_PCM_ALSA_CAPTURE     = 1 << BIT_PCM_ALSA_CAPTURE,
+	MASK_PCM_MONITOR_PLAYBACK = 1 << BIT_PCM_MONITOR_PLAYBACK,
+	MASK_PCM_MONITOR_CAPTURE  = 1 << BIT_PCM_MONITOR_CAPTURE,
+#ifdef CONFIG_LINE6_USB_IMPULSE_RESPONSE
+	MASK_PCM_IMPULSE_PLAYBACK = 1 << BIT_PCM_IMPULSE_PLAYBACK,
+	MASK_PCM_IMPULSE_CAPTURE  = 1 << BIT_PCM_IMPULSE_CAPTURE,
+#endif
+	MASK_PAUSE_PLAYBACK       = 1 << BIT_PAUSE_PLAYBACK,
+	MASK_PREPARED             = 1 << BIT_PREPARED,
+
+	/* combined masks (by operation): */
+	MASK_PCM_ALSA    = MASK_PCM_ALSA_PLAYBACK    | MASK_PCM_ALSA_CAPTURE,
+	MASK_PCM_MONITOR = MASK_PCM_MONITOR_PLAYBACK | MASK_PCM_MONITOR_CAPTURE,
+#ifdef CONFIG_LINE6_USB_IMPULSE_RESPONSE
+	MASK_PCM_IMPULSE = MASK_PCM_IMPULSE_PLAYBACK | MASK_PCM_IMPULSE_CAPTURE,
+#endif
+
+	/* combined masks (by direction): */
+#ifdef CONFIG_LINE6_USB_IMPULSE_RESPONSE
+	MASK_PLAYBACK = MASK_PCM_ALSA_PLAYBACK | MASK_PCM_MONITOR_PLAYBACK | MASK_PCM_IMPULSE_PLAYBACK,
+	MASK_CAPTURE  = MASK_PCM_ALSA_CAPTURE  | MASK_PCM_MONITOR_CAPTURE  | MASK_PCM_IMPULSE_CAPTURE
+#else
+	MASK_PLAYBACK = MASK_PCM_ALSA_PLAYBACK | MASK_PCM_MONITOR_PLAYBACK,
+	MASK_CAPTURE  = MASK_PCM_ALSA_CAPTURE  | MASK_PCM_MONITOR_CAPTURE
+#endif
 };
 
 struct line6_pcm_properties {
@@ -83,9 +132,11 @@ struct snd_line6_pcm {
 	struct urb *urb_audio_in[LINE6_ISO_BUFFERS];
 
 	/**
-		 Temporary buffer to hold data when playback buffer wraps.
+		 Temporary buffer for playback.
+		 Since the packet size is not known in advance, this buffer is
+		 large enough to store maximum size packets.
 	*/
-	unsigned char *wrap_out;
+	unsigned char *buffer_out;
 
 	/**
 		 Temporary buffer for capture.
@@ -94,6 +145,21 @@ struct snd_line6_pcm {
 	*/
 	unsigned char *buffer_in;
 
+	/**
+		 Temporary buffer index for playback.
+	*/
+	int index_out;
+
+	/**
+		 Previously captured frame (for software monitoring).
+	*/
+	unsigned char *prev_fbuf;
+
+	/**
+		 Size of previously captured frame (for software monitoring).
+	*/
+	int prev_fsize;
+
 	/**
 		 Free frame position in the playback buffer.
 	*/
@@ -204,12 +270,36 @@ struct snd_line6_pcm {
 	/**
 		 PCM playback volume (left and right).
 	*/
-	int volume[2];
+	int volume_playback[2];
+
+	/**
+		 PCM monitor volume.
+	*/
+	int volume_monitor;
+
+#ifdef CONFIG_LINE6_USB_IMPULSE_RESPONSE
+	/**
+		 Volume of impulse response test signal (if zero, test is disabled).
+	*/
+	int impulse_volume;
+
+	/**
+		 Period of impulse response test signal.
+	*/
+	int impulse_period;
+
+	/**
+		 Counter for impulse response test signal.
+	*/
+	int impulse_count;
+#endif
 
 	/**
 		 Several status bits (see BIT_*).
 	*/
 	unsigned long flags;
+
+	int last_frame_in, last_frame_out;
 };
 
 
@@ -217,6 +307,19 @@ extern int line6_init_pcm(struct usb_line6 *line6,
 			  struct line6_pcm_properties *properties);
 extern int snd_line6_trigger(struct snd_pcm_substream *substream, int cmd);
 extern int snd_line6_prepare(struct snd_pcm_substream *substream);
+extern void line6_pcm_disconnect(struct snd_line6_pcm *line6pcm);
+extern int line6_pcm_start(struct snd_line6_pcm *line6pcm, int channels);
+extern int line6_pcm_stop(struct snd_line6_pcm *line6pcm, int channels);
+
+
+#define PRINT_FRAME_DIFF(op) {																		\
+	static int diff_prev = 1000;																		\
+	int diff = line6pcm->last_frame_out - line6pcm->last_frame_in;	\
+	if((diff != diff_prev) && (abs(diff) < 100)) {									\
+		printk("%s frame diff = %d\n", op, diff);											\
+		diff_prev = diff;																							\
+	}																																\
+	}
 
 
 #endif

drivers/staging/line6/playback.h

 /*
- * Line6 Linux USB driver - 0.8.0
+ * Line6 Linux USB driver - 0.9.0
  *
- * Copyright (C) 2004-2009 Markus Grabner (grabner@icg.tugraz.at)
+ * Copyright (C) 2004-2010 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
@@ -13,18 +13,29 @@
 #define PLAYBACK_H
 
 
-#include "driver.h"
-
 #include <sound/pcm.h>
 
+#include "driver.h"
 
-extern struct snd_pcm_ops snd_line6_playback_ops;
+
+/*
+  When the TonePort is used with jack in full duplex mode and the outputs are
+  not connected, the software monitor produces an ugly noise since everything
+  written to the output buffer (i.e., the input signal) will be repeated in the
+  next period (sounds like a delay effect). As a workaround, the output buffer
+  is cleared after the data have been read, but there must be a better
+  solution. Until one is found, this workaround can be used to fix the problem.
+*/
+#define USE_CLEAR_BUFFER_WORKAROUND 1
 
 
-extern int create_audio_out_urbs(struct snd_line6_pcm *line6pcm);
-extern int snd_line6_playback_trigger(struct snd_pcm_substream *substream,
-				      int cmd);
-extern void unlink_wait_clear_audio_out_urbs(struct snd_line6_pcm *line6pcm);
+extern struct snd_pcm_ops snd_line6_playback_ops;
 
+extern int line6_create_audio_out_urbs(struct snd_line6_pcm *line6pcm);
+extern int line6_submit_audio_out_all_urbs(struct snd_line6_pcm *line6pcm);
+extern void line6_unlink_audio_out_urbs(struct snd_line6_pcm *line6pcm);
+extern void line6_unlink_wait_clear_audio_out_urbs(struct snd_line6_pcm
+						   *line6pcm);
+extern int snd_line6_playback_trigger(struct snd_line6_pcm *line6pcm, int cmd);
 
 #endif

drivers/staging/line6/pod.h

 /*
- * Line6 Linux USB driver - 0.8.0
+ * Line6 Linux USB driver - 0.9.0
  *
- * Copyright (C) 2004-2009 Markus Grabner (grabner@icg.tugraz.at)
+ * Copyright (C) 2004-2010 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
@@ -13,15 +13,14 @@
 #define POD_H
 
 
-#include "driver.h"
-
+#include <linux/interrupt.h>
 #include <linux/spinlock.h>
 #include <linux/usb.h>
 #include <linux/wait.h>
-#include <linux/workqueue.h>
 
 #include <sound/core.h>
 
+#include "driver.h"
 #include "dumprequest.h"
 
 
@@ -42,163 +41,156 @@
 */
 #define POD_CONTROL_SIZE 0x80
 #define POD_BUFSIZE_DUMPREQ 7
-#define POD_STARTUP_DELAY 3
-
+#define POD_STARTUP_DELAY 3000
 
 /**
-	 Data structure for values that need to be requested explicitly.
-	 This is the case for system and tuner settings.
+	Data structure for values that need to be requested explicitly.
+	This is the case for system and tuner settings.
 */
 struct ValueWait {
-	unsigned short value;
+	int value;
 	wait_queue_head_t wait;
 };
 
 /**
-	 Binary PodXT Pro program dump
+	Binary PODxt Pro program dump
 */
 struct pod_program {
 	/**
-		 Header information (including program name).
+		Header information (including program name).
 	*/
 	unsigned char header[0x20];
 
 	/**
-		 Program parameters.
+		Program parameters.
 	*/
 	unsigned char control[POD_CONTROL_SIZE];
 };
 
 struct usb_line6_pod {
 	/**
-		 Generic Line6 USB data.
+		Generic Line6 USB data.
 	*/
 	struct usb_line6 line6;
 
 	/**
-		 Dump request structure.
+		Dump request structure.
 	*/
 	struct line6_dump_request dumpreq;
 
 	/**
-		 Current program number.
+		Current program number.
 	*/
 	unsigned char channel_num;
 
 	/**
-		 Current program settings.
+		Current program settings.
 	*/
 	struct pod_program prog_data;
 
 	/**
-		 Buffer for data retrieved from or to be stored on PODxt Pro.
+		Buffer for data retrieved from or to be stored on PODxt Pro.
 	*/
 	struct pod_program prog_data_buf;
 
 	/**
-		 Buffer for requesting version number.
-	*/
-	unsigned char *buffer_versionreq;
-
-	/**
-		 Tuner mute mode.
+		Tuner mute mode.
 	*/
 	struct ValueWait tuner_mute;
 
 	/**
-		 Tuner base frequency (typically 440Hz).
+		Tuner base frequency (typically 440Hz).
 	*/
 	struct ValueWait tuner_freq;
 
 	/**
-		 Note received from tuner.
+		Note received from tuner.
 	*/
 	struct ValueWait tuner_note;
 
 	/**
-		 Pitch value received from tuner.
+		Pitch value received from tuner.
 	*/
 	struct ValueWait tuner_pitch;
 
 	/**
-		 Instrument monitor level.
+		Instrument monitor level.
 	*/
 	struct ValueWait monitor_level;
 
 	/**
-		 Audio routing mode.
-		 0: send processed guitar
-		 1: send clean guitar
-		 2: send clean guitar re-amp playback
-		 3: send re-amp playback
+		Audio routing mode.
+		0: send processed guitar
+		1: send clean guitar
+		2: send clean guitar re-amp playback
+		3: send re-amp playback
 	*/
 	struct ValueWait routing;
 
 	/**
-		 Wait for audio clipping event.
+		Wait for audio clipping event.
 	*/
 	struct ValueWait clipping;
 
 	/**
-		 Bottom-half for creation of sysfs special files.
+		Timer for device initializaton.
 	*/
-	struct work_struct create_files_work;
+	struct timer_list startup_timer;
 
 	/**
-		 Dirty flags for access to parameter data.
+		Work handler for device initializaton.
 	*/
-	unsigned long param_dirty[POD_CONTROL_SIZE / sizeof(unsigned long)];
+	struct work_struct startup_work;
 
 	/**
-		 Some atomic flags.
+		Current progress in startup procedure.
 	*/
-	unsigned long atomic_flags;
+	int startup_progress;
 
 	/**
-		 Counter for startup process.
+		Dirty flags for access to parameter data.
 	*/
-	int startup_count;
+	unsigned long param_dirty[POD_CONTROL_SIZE / sizeof(unsigned long)];
+
+	/**
+		Some atomic flags.
+	*/
+	unsigned long atomic_flags;
 
 	/**
-		 Serial number of device.
+		Serial number of device.
 	*/
 	int serial_number;
 
 	/**
-		 Firmware version (x 100).
+		Firmware version (x 100).
 	*/
 	int firmware_version;
 
 	/**
-		 Device ID.
+		Device ID.
 	*/
 	int device_id;
 
 	/**
-		 Flag to indicate modification of current program settings.
+		Flag to indicate modification of current program settings.
 	*/
 	char dirty;
 
 	/**
-		 Flag if initial firmware version request has been successful.
-	*/
-	char versionreq_ok;
-
-	/**
-		 Flag to enable MIDI postprocessing.
+		Flag to enable MIDI postprocessing.
 	*/
 	char midi_postprocess;
 };
 
 
-extern void pod_disconnect(struct usb_interface *interface);
-extern int pod_init(struct usb_interface *interface, struct usb_line6_pod *pod);
-extern void pod_midi_postprocess(struct usb_line6_pod *pod,
-				 unsigned char *data, int length);
-extern void pod_process_message(struct usb_line6_pod *pod);
-extern void pod_receive_parameter(struct usb_line6_pod *pod, int param);
-extern void pod_transmit_parameter(struct usb_line6_pod *pod, int param,
-				   int value);
+extern void line6_pod_disconnect(struct usb_interface *interface);
+extern int line6_pod_init(struct usb_interface *interface, struct usb_line6_pod *pod);
+extern void line6_pod_midi_postprocess(struct usb_line6_pod *pod,
+				       unsigned char *data, int length);
+extern void line6_pod_process_message(struct usb_line6_pod *pod);
+extern void line6_pod_transmit_parameter(struct usb_line6_pod *pod, int param,
+					 int value);
 
 
 #endif

drivers/staging/line6/revision.h

 #ifndef DRIVER_REVISION
 /* current subversion revision */
-#define DRIVER_REVISION " (revision 529)"
+#define DRIVER_REVISION " (revision 665)"
 #endif

drivers/staging/line6/toneport.h

 /*
- * Line6 Linux USB driver - 0.8.0
+ * Line6 Linux USB driver - 0.9.0
  *
- * Copyright (C) 2004-2009 Markus Grabner (grabner@icg.tugraz.at)
+ * Copyright (C) 2004-2010 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
@@ -13,33 +13,44 @@
 #define TONEPORT_H
 
 
-#include "driver.h"
-
 #include <linux/usb.h>
 #include <sound/core.h>
 
+#include "driver.h"
+
 
 struct usb_line6_toneport {
 	/**
-		 Generic Line6 USB data.
+		Generic Line6 USB data.
 	*/
 	struct usb_line6 line6;
 
 	/**
-		 Serial number of device.
+		Source selector.
+	*/
+	int source;
+
+	/**
+		Serial number of device.
 	*/
 	int serial_number;
 
 	/**
-		 Firmware version (x 100).
+		Firmware version (x 100).
 	*/
 	int firmware_version;
+
+	/**
+		 Timer for delayed PCM startup.
+	*/
+	struct timer_list timer;
 };
 
 
-extern void toneport_disconnect(struct usb_interface *interface);
-extern int toneport_init(struct usb_interface *interface,
-			 struct usb_line6_toneport *toneport);
+extern void line6_toneport_disconnect(struct usb_interface *interface);
+extern int line6_toneport_init(struct usb_interface *interface,
+			       struct usb_line6_toneport *toneport);
+extern void line6_toneport_reset_resume(struct usb_line6_toneport *toneport);
 
 
 #endif