25a0707cf6
The address cannot be negative so make it unsigned. Also, an unsigned int is always sufficient for the length, so no need to overdo it with a size_t. Finally, add in range checks to see if the values passed in actually fit where they are used. Signed-off-by: Chris Rorvick <chris@rorvick.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
182 lines
4.6 KiB
C
182 lines
4.6 KiB
C
/*
|
|
* Line 6 Linux USB driver
|
|
*
|
|
* 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
|
|
* published by the Free Software Foundation, version 2.
|
|
*
|
|
*/
|
|
|
|
#ifndef DRIVER_H
|
|
#define DRIVER_H
|
|
|
|
#include <linux/spinlock.h>
|
|
#include <linux/usb.h>
|
|
#include <sound/core.h>
|
|
|
|
#include "midi.h"
|
|
|
|
#define USB_INTERVALS_PER_SECOND 1000
|
|
|
|
/* Fallback USB interval and max packet size values */
|
|
#define LINE6_FALLBACK_INTERVAL 10
|
|
#define LINE6_FALLBACK_MAXPACKETSIZE 16
|
|
|
|
#define LINE6_TIMEOUT 1
|
|
#define LINE6_BUFSIZE_LISTEN 32
|
|
#define LINE6_MESSAGE_MAXLEN 256
|
|
|
|
/*
|
|
Line 6 MIDI control commands
|
|
*/
|
|
#define LINE6_PARAM_CHANGE 0xb0
|
|
#define LINE6_PROGRAM_CHANGE 0xc0
|
|
#define LINE6_SYSEX_BEGIN 0xf0
|
|
#define LINE6_SYSEX_END 0xf7
|
|
#define LINE6_RESET 0xff
|
|
|
|
/*
|
|
MIDI channel for messages initiated by the host
|
|
(and eventually echoed back by the device)
|
|
*/
|
|
#define LINE6_CHANNEL_HOST 0x00
|
|
|
|
/*
|
|
MIDI channel for messages initiated by the device
|
|
*/
|
|
#define LINE6_CHANNEL_DEVICE 0x02
|
|
|
|
#define LINE6_CHANNEL_UNKNOWN 5 /* don't know yet what this is good for */
|
|
|
|
#define LINE6_CHANNEL_MASK 0x0f
|
|
|
|
#define CHECK_STARTUP_PROGRESS(x, n) \
|
|
do { \
|
|
if ((x) >= (n)) \
|
|
return; \
|
|
x = (n); \
|
|
} while (0)
|
|
|
|
extern const unsigned char line6_midi_id[3];
|
|
|
|
static const int SYSEX_DATA_OFS = sizeof(line6_midi_id) + 3;
|
|
static const int SYSEX_EXTRA_SIZE = sizeof(line6_midi_id) + 4;
|
|
|
|
/*
|
|
Common properties of Line 6 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 vector defining this device's capabilities in line6usb driver */
|
|
int capabilities;
|
|
|
|
int altsetting;
|
|
|
|
unsigned ep_ctrl_r;
|
|
unsigned ep_ctrl_w;
|
|
unsigned ep_audio_r;
|
|
unsigned ep_audio_w;
|
|
};
|
|
|
|
/* Capability bits */
|
|
enum {
|
|
/* device supports settings parameter via USB */
|
|
LINE6_CAP_CONTROL = 1 << 0,
|
|
/* device supports PCM input/output via USB */
|
|
LINE6_CAP_PCM = 1 << 1,
|
|
/* device support hardware monitoring */
|
|
LINE6_CAP_HWMON = 1 << 2,
|
|
};
|
|
|
|
/*
|
|
Common data shared by all Line 6 devices.
|
|
Corresponds to a pair of USB endpoints.
|
|
*/
|
|
struct usb_line6 {
|
|
/* USB device */
|
|
struct usb_device *usbdev;
|
|
|
|
/* Properties */
|
|
const struct line6_properties *properties;
|
|
|
|
/* Interval (ms) */
|
|
int interval;
|
|
|
|
/* Maximum size of USB packet */
|
|
int max_packet_size;
|
|
|
|
/* Device representing the USB interface */
|
|
struct device *ifcdev;
|
|
|
|
/* Line 6 sound card data structure.
|
|
* Each device has at least MIDI or PCM.
|
|
*/
|
|
struct snd_card *card;
|
|
|
|
/* Line 6 PCM device data structure */
|
|
struct snd_line6_pcm *line6pcm;
|
|
|
|
/* Line 6 MIDI device data structure */
|
|
struct snd_line6_midi *line6midi;
|
|
|
|
/* URB for listening to PODxt Pro control endpoint */
|
|
struct urb *urb_listen;
|
|
|
|
/* Buffer for listening to PODxt Pro control endpoint */
|
|
unsigned char *buffer_listen;
|
|
|
|
/* Buffer for message to be processed */
|
|
unsigned char *buffer_message;
|
|
|
|
/* Length of message to be processed */
|
|
int message_length;
|
|
|
|
void (*process_message)(struct usb_line6 *);
|
|
void (*disconnect)(struct usb_line6 *line6);
|
|
};
|
|
|
|
extern char *line6_alloc_sysex_buffer(struct usb_line6 *line6, int code1,
|
|
int code2, int size);
|
|
extern int line6_read_data(struct usb_line6 *line6, unsigned address,
|
|
void *data, unsigned datalen);
|
|
extern int line6_read_serial_number(struct usb_line6 *line6,
|
|
u32 *serial_number);
|
|
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 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 long msecs,
|
|
void (*function)(unsigned long),
|
|
unsigned long data);
|
|
extern int line6_version_request_async(struct usb_line6 *line6);
|
|
extern int line6_write_data(struct usb_line6 *line6, unsigned address,
|
|
void *data, unsigned datalen);
|
|
|
|
int line6_probe(struct usb_interface *interface,
|
|
const struct usb_device_id *id,
|
|
const char *driver_name,
|
|
const struct line6_properties *properties,
|
|
int (*private_init)(struct usb_line6 *, const struct usb_device_id *id),
|
|
size_t data_size);
|
|
|
|
void line6_disconnect(struct usb_interface *interface);
|
|
|
|
#ifdef CONFIG_PM
|
|
int line6_suspend(struct usb_interface *interface, pm_message_t message);
|
|
int line6_resume(struct usb_interface *interface);
|
|
#endif
|
|
|
|
#endif
|