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-rw-r--r--drivers/staging/line6/driver.h190
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diff --git a/drivers/staging/line6/driver.h b/drivers/staging/line6/driver.h
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1/*
2 * Line6 Linux USB driver - 0.8.0
3 *
4 * Copyright (C) 2004-2009 Markus Grabner (grabner@icg.tugraz.at)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation, version 2.
9 *
10 */
11
12#ifndef DRIVER_H
13#define DRIVER_H
14
15
16#include "config.h"
17
18#include <linux/spinlock.h>
19#include <linux/usb.h>
20#include <linux/wait.h>
21
22#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 25)
23#include <sound/driver.h>
24#endif
25
26#include <sound/core.h>
27
28#include "midi.h"
29
30
31#define DRIVER_NAME "line6usb"
32
33#define LINE6_TIMEOUT 1
34#define LINE6_MAX_DEVICES 8
35#define LINE6_BUFSIZE_LISTEN 32
36#define LINE6_MESSAGE_MAXLEN 256
37
38
39/*
40 Line6 MIDI control commands
41*/
42#define LINE6_PARAM_CHANGE 0xb0
43#define LINE6_PROGRAM_CHANGE 0xc0
44#define LINE6_SYSEX_BEGIN 0xf0
45#define LINE6_SYSEX_END 0xf7
46#define LINE6_RESET 0xff
47
48/*
49 MIDI channel for messages initiated by the host
50 (and eventually echoed back by the device)
51*/
52#define LINE6_CHANNEL_HOST 0x00
53
54/*
55 MIDI channel for messages initiated by the device
56*/
57#define LINE6_CHANNEL_DEVICE 0x02
58
59#define LINE6_CHANNEL_UNKNOWN 5 /* don't know yet what this is good for */
60
61#define LINE6_CHANNEL_MASK 0x0f
62
63
64#define MISSING_CASE printk("line6usb driver bug: missing case in %s:%d\n", __FILE__, __LINE__)
65
66
67#define CHECK_RETURN(x) if((err = x) < 0) return err
68
69
70extern const unsigned char line6_midi_id[3];
71extern struct usb_line6 *line6_devices[LINE6_MAX_DEVICES];
72extern struct workqueue_struct *line6_workqueue;
73
74static const int SYSEX_DATA_OFS = sizeof(line6_midi_id) + 3;
75static const int SYSEX_EXTRA_SIZE = sizeof(line6_midi_id) + 4;
76
77
78/**
79 Common properties of Line6 devices.
80*/
81struct line6_properties {
82 const char *name;
83 int device_bit;
84 int capabilities;
85};
86
87/**
88 Common data shared by all Line6 devices.
89 Corresponds to a pair of USB endpoints.
90*/
91struct usb_line6 {
92 /**
93 USB device.
94 */
95 struct usb_device *usbdev;
96
97 /**
98 Product id.
99 */
100 int product;
101
102 /**
103 Properties.
104 */
105 const struct line6_properties *properties;
106
107 /**
108 Interface number.
109 */
110 int interface_number;
111
112 /**
113 Interval (ms).
114 */
115 int interval;
116
117 /**
118 Maximum size of USB packet.
119 */
120 int max_packet_size;
121
122 /**
123 Device representing the USB interface.
124 */
125 struct device *ifcdev;
126
127 /**
128 Line6 sound card data structure.
129 Each device has at least MIDI or PCM.
130 */
131 struct snd_card *card;
132
133 /**
134 Line6 PCM device data structure.
135 */
136 struct snd_line6_pcm *line6pcm;
137
138 /**
139 Line6 MIDI device data structure.
140 */
141 struct snd_line6_midi *line6midi;
142
143 /**
144 USB endpoint for listening to control commands.
145 */
146 int ep_control_read;
147
148 /**
149 USB endpoint for writing control commands.
150 */
151 int ep_control_write;
152
153 /**
154 URB for listening to PODxt Pro control endpoint.
155 */
156 struct urb *urb_listen;
157
158 /**
159 Buffer for listening to PODxt Pro control endpoint.
160 */
161 unsigned char *buffer_listen;
162
163 /**
164 Buffer for message to be processed.
165 */
166 unsigned char *buffer_message;
167
168 /**
169 Length of message to be processed.
170 */
171 int message_length;
172};
173
174
175extern char *line6_alloc_sysex_buffer(struct usb_line6 *line6, int code1, int code2, int size);
176extern ssize_t line6_nop_read(struct device *dev, DEVICE_ATTRIBUTE char *buf);
177extern ssize_t line6_nop_write(struct device *dev, DEVICE_ATTRIBUTE const char *buf, size_t count);
178extern int line6_read_data(struct usb_line6 *line6, int address, void *data, size_t datalen);
179extern int line6_read_serial_number(struct usb_line6 *line6, int *serial_number);
180extern int line6_send_program(struct usb_line6 *line6, int value);
181extern int line6_send_raw_message(struct usb_line6 *line6, const char *buffer, int size);
182extern int line6_send_raw_message_async(struct usb_line6 *line6, const char *buffer, int size);
183extern int line6_send_sysex_message(struct usb_line6 *line6, const char *buffer, int size);
184extern ssize_t line6_set_raw(struct device *dev, DEVICE_ATTRIBUTE const char *buf, size_t count);
185extern int line6_transmit_parameter(struct usb_line6 *line6, int param, int value);
186extern int line6_write_data(struct usb_line6 *line6, int address, void *data, size_t datalen);
187extern void line6_write_hexdump(struct usb_line6 *line6, char dir, const unsigned char *buffer, int size);
188
189
190#endif
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