path: root/drivers/staging/line6/driver.c

/*
 * 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 <linux/kernel.h>
#include <linux/module.h>
#include <linux/usb.h>

#include "audio.h"
#include "capture.h"
#include "control.h"
#include "midi.h"
#include "playback.h"
#include "pod.h"
#include "revision.h"
#include "toneport.h"
#include "usbdefs.h"
#include "variax.h"


#define DRIVER_AUTHOR  "Markus Grabner <grabner@icg.tugraz.at>"
#define DRIVER_DESC    "Line6 USB Driver"
#define DRIVER_VERSION "0.8.0"


/* table of devices that work with this driver */
static struct usb_device_id line6_id_table[] = {
	{ USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_BASSPODXT) },
	{ USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_BASSPODXTLIVE) },
	{ USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_BASSPODXTPRO) },
	{ USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_GUITARPORT) },
	{ USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_POCKETPOD) },
	{ USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_PODX3) },
	{ USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_PODX3LIVE) },
	{ USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_PODXT) },
	{ USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_PODXTLIVE) },
	{ USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_PODXTPRO) },
	{ USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_TONEPORT_GX) },
	{ USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_TONEPORT_UX1) },
	{ USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_TONEPORT_UX2) },
	{ USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_VARIAX) },
	{ },
};
MODULE_DEVICE_TABLE(usb, line6_id_table);

static struct line6_properties line6_properties_table[] = {
	{ "BassPODxt",        LINE6_BIT_BASSPODXT,     LINE6_BIT_CONTROL_PCM },
	{ "BassPODxt Live",   LINE6_BIT_BASSPODXTLIVE, LINE6_BIT_CONTROL_PCM },
	{ "BassPODxt Pro",    LINE6_BIT_BASSPODXTPRO,  LINE6_BIT_CONTROL_PCM },
	{ "GuitarPort",       LINE6_BIT_GUITARPORT,    LINE6_BIT_PCM         },
	{ "Pocket POD",       LINE6_BIT_POCKETPOD,     LINE6_BIT_CONTROL_PCM },
	{ "POD X3",           LINE6_BIT_PODX3,         LINE6_BIT_PCM         },
	{ "POD X3 Live",      LINE6_BIT_PODX3LIVE,     LINE6_BIT_PCM         },
	{ "PODxt",            LINE6_BIT_PODXT,         LINE6_BIT_CONTROL_PCM },
	{ "PODxt Live",       LINE6_BIT_PODXTLIVE,     LINE6_BIT_CONTROL_PCM },
	{ "PODxt Pro",        LINE6_BIT_PODXTPRO,      LINE6_BIT_CONTROL_PCM },
	{ "TonePort GX",      LINE6_BIT_TONEPORT_GX,   LINE6_BIT_PCM         },
	{ "TonePort UX1",     LINE6_BIT_TONEPORT_UX1,  LINE6_BIT_PCM         },
	{ "TonePort UX2",     LINE6_BIT_TONEPORT_UX2,  LINE6_BIT_PCM         },
	{ "Variax Workbench", LINE6_BIT_VARIAX,        LINE6_BIT_CONTROL     }
};


/*
	This is Line6's MIDI manufacturer ID.
*/
const unsigned char line6_midi_id[] = { 0x00, 0x01, 0x0c };

struct usb_line6 *line6_devices[LINE6_MAX_DEVICES];
struct workqueue_struct *line6_workqueue;


/**
	 Class for asynchronous messages.
*/
struct message {
	struct usb_line6 *line6;
	const char *buffer;
	int size;
	int done;
};


/*
	Forward declarations.
*/
static void line6_data_received(struct urb *urb);
static int line6_send_raw_message_async_part(struct message *msg,
					     struct urb *urb);


/*
	Start to listen on endpoint.
*/
static int line6_start_listen(struct usb_line6 *line6)
{
	usb_fill_int_urb(line6->urb_listen, line6->usbdev,
			 usb_rcvintpipe(line6->usbdev, line6->ep_control_read),
			 line6->buffer_listen, LINE6_BUFSIZE_LISTEN,
			 line6_data_received, line6, line6->interval);
	line6->urb_listen->actual_length = 0;
	return usb_submit_urb(line6->urb_listen, GFP_KERNEL);
}

#if DO_DUMP_ANY
/*
	Write hexdump to syslog.
*/
void line6_write_hexdump(struct usb_line6 *line6, char dir,
			 const unsigned char *buffer, int size)
{
	static const int BYTES_PER_LINE = 8;
	char