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7
8#ifndef DRIVER_H
9#define DRIVER_H
10
11#include <linux/usb.h>
12#include <linux/mutex.h>
13#include <linux/kfifo.h>
14#include <sound/core.h>
15
16#include "midi.h"
17
18
19#define USB_LOW_INTERVALS_PER_SECOND 1000
20#define USB_LOW_ISO_BUFFERS 2
21
22
23#define USB_HIGH_INTERVALS_PER_SECOND 8000
24#define USB_HIGH_ISO_BUFFERS 16
25
26
27#define LINE6_FALLBACK_INTERVAL 10
28#define LINE6_FALLBACK_MAXPACKETSIZE 16
29
30#define LINE6_TIMEOUT 1000
31#define LINE6_BUFSIZE_LISTEN 64
32#define LINE6_MIDI_MESSAGE_MAXLEN 256
33
34#define LINE6_RAW_MESSAGES_MAXCOUNT_ORDER 7
35
36#define LINE6_RAW_MESSAGES_MAXCOUNT (1 << LINE6_RAW_MESSAGES_MAXCOUNT_ORDER)
37
38
39#if LINE6_BUFSIZE_LISTEN > 65535
40#error "Use dynamic fifo instead"
41#endif
42
43
44
45
46#define LINE6_PARAM_CHANGE 0xb0
47#define LINE6_PROGRAM_CHANGE 0xc0
48#define LINE6_SYSEX_BEGIN 0xf0
49#define LINE6_SYSEX_END 0xf7
50#define LINE6_RESET 0xff
51
52
53
54
55
56#define LINE6_CHANNEL_HOST 0x00
57
58
59
60
61#define LINE6_CHANNEL_DEVICE 0x02
62
63#define LINE6_CHANNEL_UNKNOWN 5
64
65#define LINE6_CHANNEL_MASK 0x0f
66
67extern const unsigned char line6_midi_id[3];
68
69#define SYSEX_DATA_OFS (sizeof(line6_midi_id) + 3)
70#define SYSEX_EXTRA_SIZE (sizeof(line6_midi_id) + 4)
71
72
73
74
75struct line6_properties {
76
77
78
79
80 const char *id;
81
82
83 const char *name;
84
85
86 int capabilities;
87
88 int altsetting;
89
90 unsigned int ctrl_if;
91 unsigned int ep_ctrl_r;
92 unsigned int ep_ctrl_w;
93 unsigned int ep_audio_r;
94 unsigned int ep_audio_w;
95};
96
97
98enum {
99
100 LINE6_CAP_CONTROL = 1 << 0,
101
102 LINE6_CAP_PCM = 1 << 1,
103
104 LINE6_CAP_HWMON = 1 << 2,
105
106 LINE6_CAP_IN_NEEDS_OUT = 1 << 3,
107
108 LINE6_CAP_CONTROL_MIDI = 1 << 4,
109
110 LINE6_CAP_CONTROL_INFO = 1 << 5,
111
112 LINE6_CAP_HWMON_CTL = 1 << 6,
113};
114
115
116
117
118
119struct usb_line6 {
120
121 struct usb_device *usbdev;
122
123
124 const struct line6_properties *properties;
125
126
127 int interval;
128
129 int intervals_per_second;
130
131
132 int iso_buffers;
133
134
135 int max_packet_size;
136
137
138 struct device *ifcdev;
139
140
141
142
143 struct snd_card *card;
144
145
146 struct snd_line6_pcm *line6pcm;
147
148
149 struct snd_line6_midi *line6midi;
150
151
152 struct urb *urb_listen;
153
154
155 unsigned char *buffer_listen;
156
157
158 unsigned char *buffer_message;
159
160
161 int message_length;
162
163
164 struct {
165 struct mutex read_lock;
166 wait_queue_head_t wait_queue;
167 unsigned int active:1;
168 unsigned int nonblock:1;
169 STRUCT_KFIFO_REC_2(LINE6_BUFSIZE_LISTEN * LINE6_RAW_MESSAGES_MAXCOUNT)
170 fifo;
171 } messages;
172
173
174 struct delayed_work startup_work;
175
176
177
178
179 void (*process_message)(struct usb_line6 *);
180 void (*disconnect)(struct usb_line6 *line6);
181 void (*startup)(struct usb_line6 *line6);
182};
183
184extern char *line6_alloc_sysex_buffer(struct usb_line6 *line6, int code1,
185 int code2, int size);
186extern int line6_read_data(struct usb_line6 *line6, unsigned address,
187 void *data, unsigned datalen);
188extern int line6_read_serial_number(struct usb_line6 *line6,
189 u32 *serial_number);
190extern int line6_send_raw_message(struct usb_line6 *line6,
191 const char *buffer, int size);
192extern int line6_send_raw_message_async(struct usb_line6 *line6,
193 const char *buffer, int size);
194extern int line6_send_sysex_message(struct usb_line6 *line6,
195 const char *buffer, int size);
196extern ssize_t line6_set_raw(struct device *dev, struct device_attribute *attr,
197 const char *buf, size_t count);
198extern int line6_version_request_async(struct usb_line6 *line6);
199extern int line6_write_data(struct usb_line6 *line6, unsigned address,
200 void *data, unsigned datalen);
201
202int line6_probe(struct usb_interface *interface,
203 const struct usb_device_id *id,
204 const char *driver_name,
205 const struct line6_properties *properties,
206 int (*private_init)(struct usb_line6 *, const struct usb_device_id *id),
207 size_t data_size);
208
209void line6_disconnect(struct usb_interface *interface);
210
211#ifdef CONFIG_PM
212int line6_suspend(struct usb_interface *interface, pm_message_t message);
213int line6_resume(struct usb_interface *interface);
214#endif
215
216#endif
217