linux/sound/usb/line6/pod.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Line 6 Linux USB driver
 *
 * Copyright (C) 2004-2010 Markus Grabner ([email protected])
 */

#include <linux/slab.h>
#include <linux/wait.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/usb.h>

#include <sound/core.h>
#include <sound/control.h>

#include "capture.h"
#include "driver.h"
#include "playback.h"

/*
	Locate name in binary program dump
*/
#define POD_NAME_OFFSET …
#define POD_NAME_LENGTH …

/*
	Other constants
*/
#define POD_CONTROL_SIZE …
#define POD_BUFSIZE_DUMPREQ …
#define POD_STARTUP_DELAY …

/*
	Stages of POD startup procedure
*/
enum { … };

enum { … };

struct usb_line6_pod { … };

#define line6_to_pod(x) …

#define POD_SYSEX_CODE …

/* *INDENT-OFF* */

enum { … };

enum { … };

/* *INDENT-ON* */

enum { … };

enum { … };

static const struct snd_ratden pod_ratden = …;

static struct line6_pcm_properties pod_pcm_properties = …;


static const char pod_version_header[] = …;

static char *pod_alloc_sysex_buffer(struct usb_line6_pod *pod, int code,
				    int size)
{ … }

/*
	Process a completely received message.
*/
static void line6_pod_process_message(struct usb_line6 *line6)
{ … }

/*
	Send system parameter (from integer).
*/
static int pod_set_system_param_int(struct usb_line6_pod *pod, int value,
				    int code)
{ … }

/*
	"read" request on "serial_number" special file.
*/
static ssize_t serial_number_show(struct device *dev,
				  struct device_attribute *attr, char *buf)
{ … }

/*
	"read" request on "firmware_version" special file.
*/
static ssize_t firmware_version_show(struct device *dev,
				     struct device_attribute *attr, char *buf)
{ … }

/*
	"read" request on "device_id" special file.
*/
static ssize_t device_id_show(struct device *dev,
			      struct device_attribute *attr, char *buf)
{ … }

/*
	POD startup procedure.
	This is a sequence of functions with special requirements (e.g., must
	not run immediately after initialization, must not run in interrupt
	context). After the last one has finished, the device is ready to use.
*/

static void pod_startup(struct usb_line6 *line6)
{ … }

/* POD special files: */
static DEVICE_ATTR_RO(device_id);
static DEVICE_ATTR_RO(firmware_version);
static DEVICE_ATTR_RO(serial_number);

static struct attribute *pod_dev_attrs[] = …;

static const struct attribute_group pod_dev_attr_group = …;

/* control info callback */
static int snd_pod_control_monitor_info(struct snd_kcontrol *kcontrol,
					struct snd_ctl_elem_info *uinfo)
{ … }

/* control get callback */
static int snd_pod_control_monitor_get(struct snd_kcontrol *kcontrol,
				       struct snd_ctl_elem_value *ucontrol)
{ … }

/* control put callback */
static int snd_pod_control_monitor_put(struct snd_kcontrol *kcontrol,
				       struct snd_ctl_elem_value *ucontrol)
{ … }

/* control definition */
static const struct snd_kcontrol_new pod_control_monitor = …;

/*
	 Try to init POD device.
*/
static int pod_init(struct usb_line6 *line6,
		    const struct usb_device_id *id)
{ … }

#define LINE6_DEVICE(prod) …
#define LINE6_IF_NUM(prod, n) …

/* table of devices that work with this driver */
static const struct usb_device_id pod_id_table[] = …;

MODULE_DEVICE_TABLE(usb, pod_id_table);

static const struct line6_properties pod_properties_table[] = …;

/*
	Probe USB device.
*/
static int pod_probe(struct usb_interface *interface,
		     const struct usb_device_id *id)
{ … }

static struct usb_driver pod_driver = …;

module_usb_driver(…) …;

MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;