Staging: add line6 usb driver
This is an experimental Linux driver for the guitar amp, cab, and
effects modeller PODxt Pro by Line6 (and similar devices), supporting
the following features:
- Reading/writing individual parameters
- Reading/writing complete channel, effects setup, and amp setup data
- Channel switching
- Virtual MIDI interface
- Tuner access
- Playback/capture/mixer device for any ALSA-compatible PCM audio
application
- Signal routing (record clean/processed guitar signal, re-amping)
Moreover, preliminary support for the Variax Workbench is included.
From: Markus Grabner <grabner@icg.tugraz.at>
Cc: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/staging/line6/dumprequest.h b/drivers/staging/line6/dumprequest.h
new file mode 100644
index 0000000..e0b38bb
--- /dev/null
+++ b/drivers/staging/line6/dumprequest.h
@@ -0,0 +1,87 @@
+/*
+ * 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.
+ *
+ */
+
+#ifndef DUMPREQUEST_H
+#define DUMPREQUEST_H
+
+
+#include <linux/usb.h>
+#include <linux/wait.h>
+
+#include <sound/core.h>
+
+
+enum {
+ LINE6_DUMP_NONE,
+ LINE6_DUMP_CURRENT
+};
+
+
+struct line6_dump_reqbuf {
+ /**
+ Buffer for dump requests.
+ */
+ unsigned char *buffer;
+
+ /**
+ Size of dump request.
+ */
+ size_t length;
+};
+
+/**
+ Provides the functionality to request channel/model/... dump data from a
+ Line6 device.
+*/
+struct line6_dump_request {
+ /**
+ Wait queue for access to program dump data.
+ */
+ wait_queue_head_t wait;
+
+ /**
+ Indicates an unfinished program dump request.
+ 0: no dump
+ 1: dump current settings
+ Other device-specific values are also allowed.
+ */
+ 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
+ */
+ struct line6_dump_reqbuf reqbufs[1];
+};
+
+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);
+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);
+extern int line6_dumpreq_init(struct line6_dump_request *l6dr, const void *buf, size_t len);
+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);
+
+
+#endif
