Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * usbmidi.c - ALSA USB MIDI driver | |
3 | * | |
96f61d9a | 4 | * Copyright (c) 2002-2009 Clemens Ladisch |
1da177e4 LT |
5 | * All rights reserved. |
6 | * | |
7 | * Based on the OSS usb-midi driver by NAGANO Daisuke, | |
8 | * NetBSD's umidi driver by Takuya SHIOZAKI, | |
9 | * the "USB Device Class Definition for MIDI Devices" by Roland | |
10 | * | |
11 | * Redistribution and use in source and binary forms, with or without | |
12 | * modification, are permitted provided that the following conditions | |
13 | * are met: | |
14 | * 1. Redistributions of source code must retain the above copyright | |
15 | * notice, this list of conditions, and the following disclaimer, | |
16 | * without modification. | |
17 | * 2. The name of the author may not be used to endorse or promote products | |
18 | * derived from this software without specific prior written permission. | |
19 | * | |
20 | * Alternatively, this software may be distributed and/or modified under the | |
21 | * terms of the GNU General Public License as published by the Free Software | |
22 | * Foundation; either version 2 of the License, or (at your option) any later | |
23 | * version. | |
24 | * | |
25 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND | |
26 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
27 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
28 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR | |
29 | * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
30 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
31 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
32 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
33 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
34 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
35 | * SUCH DAMAGE. | |
36 | */ | |
37 | ||
1da177e4 LT |
38 | #include <linux/kernel.h> |
39 | #include <linux/types.h> | |
40 | #include <linux/bitops.h> | |
41 | #include <linux/interrupt.h> | |
42 | #include <linux/spinlock.h> | |
43 | #include <linux/string.h> | |
44 | #include <linux/init.h> | |
45 | #include <linux/slab.h> | |
c8846970 | 46 | #include <linux/timer.h> |
1da177e4 | 47 | #include <linux/usb.h> |
a65dd997 | 48 | #include <linux/wait.h> |
de48c7bc | 49 | #include <linux/usb/audio.h> |
d6e68c57 | 50 | #include <linux/usb/midi.h> |
da155d5b | 51 | #include <linux/module.h> |
de48c7bc | 52 | |
1da177e4 | 53 | #include <sound/core.h> |
96f61d9a | 54 | #include <sound/control.h> |
1da177e4 | 55 | #include <sound/rawmidi.h> |
a7b928ac | 56 | #include <sound/asequencer.h> |
1da177e4 | 57 | #include "usbaudio.h" |
e5779998 | 58 | #include "midi.h" |
88a8516a | 59 | #include "power.h" |
e5779998 | 60 | #include "helper.h" |
1da177e4 LT |
61 | |
62 | /* | |
63 | * define this to log all USB packets | |
64 | */ | |
65 | /* #define DUMP_PACKETS */ | |
66 | ||
c8846970 | 67 | /* |
37ebb549 | 68 | * how long to wait after some USB errors, so that hub_wq can disconnect() us |
c8846970 CL |
69 | * without too many spurious errors |
70 | */ | |
71 | #define ERROR_DELAY_JIFFIES (HZ / 10) | |
72 | ||
ed4affa5 | 73 | #define OUTPUT_URBS 7 |
4773d1fb CL |
74 | #define INPUT_URBS 7 |
75 | ||
1da177e4 LT |
76 | |
77 | MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>"); | |
78 | MODULE_DESCRIPTION("USB Audio/MIDI helper module"); | |
79 | MODULE_LICENSE("Dual BSD/GPL"); | |
80 | ||
86e07d34 TI |
81 | struct snd_usb_midi_in_endpoint; |
82 | struct snd_usb_midi_out_endpoint; | |
83 | struct snd_usb_midi_endpoint; | |
1da177e4 LT |
84 | |
85 | struct usb_protocol_ops { | |
86e07d34 | 86 | void (*input)(struct snd_usb_midi_in_endpoint*, uint8_t*, int); |
ed4affa5 | 87 | void (*output)(struct snd_usb_midi_out_endpoint *ep, struct urb *urb); |
1da177e4 | 88 | void (*output_packet)(struct urb*, uint8_t, uint8_t, uint8_t, uint8_t); |
a509574e AG |
89 | void (*init_out_endpoint)(struct snd_usb_midi_out_endpoint *); |
90 | void (*finish_out_endpoint)(struct snd_usb_midi_out_endpoint *); | |
1da177e4 LT |
91 | }; |
92 | ||
93 | struct snd_usb_midi { | |
d82af9f9 CL |
94 | struct usb_device *dev; |
95 | struct snd_card *card; | |
1da177e4 | 96 | struct usb_interface *iface; |
86e07d34 TI |
97 | const struct snd_usb_audio_quirk *quirk; |
98 | struct snd_rawmidi *rmidi; | |
17074c1a | 99 | const struct usb_protocol_ops *usb_protocol_ops; |
1da177e4 | 100 | struct list_head list; |
c8846970 | 101 | struct timer_list error_timer; |
c0792e00 | 102 | spinlock_t disc_lock; |
59866da9 | 103 | struct rw_semaphore disc_rwsem; |
96f61d9a | 104 | struct mutex mutex; |
d82af9f9 CL |
105 | u32 usb_id; |
106 | int next_midi_device; | |
1da177e4 LT |
107 | |
108 | struct snd_usb_midi_endpoint { | |
86e07d34 TI |
109 | struct snd_usb_midi_out_endpoint *out; |
110 | struct snd_usb_midi_in_endpoint *in; | |
1da177e4 LT |
111 | } endpoints[MIDI_MAX_ENDPOINTS]; |
112 | unsigned long input_triggered; | |
f5f16541 | 113 | unsigned int opened[2]; |
c0792e00 | 114 | unsigned char disconnected; |
f5f16541 | 115 | unsigned char input_running; |
96f61d9a CL |
116 | |
117 | struct snd_kcontrol *roland_load_ctl; | |
1da177e4 LT |
118 | }; |
119 | ||
120 | struct snd_usb_midi_out_endpoint { | |
a509574e | 121 | struct snd_usb_midi *umidi; |
ed4affa5 CL |
122 | struct out_urb_context { |
123 | struct urb *urb; | |
124 | struct snd_usb_midi_out_endpoint *ep; | |
125 | } urbs[OUTPUT_URBS]; | |
126 | unsigned int active_urbs; | |
a65dd997 | 127 | unsigned int drain_urbs; |
1da177e4 | 128 | int max_transfer; /* size of urb buffer */ |
c7d9efdf | 129 | struct work_struct work; |
a65dd997 | 130 | unsigned int next_urb; |
1da177e4 LT |
131 | spinlock_t buffer_lock; |
132 | ||
133 | struct usbmidi_out_port { | |
a509574e | 134 | struct snd_usb_midi_out_endpoint *ep; |
86e07d34 | 135 | struct snd_rawmidi_substream *substream; |
1da177e4 LT |
136 | int active; |
137 | uint8_t cable; /* cable number << 4 */ | |
138 | uint8_t state; | |
139 | #define STATE_UNKNOWN 0 | |
140 | #define STATE_1PARAM 1 | |
141 | #define STATE_2PARAM_1 2 | |
142 | #define STATE_2PARAM_2 3 | |
143 | #define STATE_SYSEX_0 4 | |
144 | #define STATE_SYSEX_1 5 | |
145 | #define STATE_SYSEX_2 6 | |
146 | uint8_t data[2]; | |
147 | } ports[0x10]; | |
148 | int current_port; | |
a65dd997 CL |
149 | |
150 | wait_queue_head_t drain_wait; | |
1da177e4 LT |
151 | }; |
152 | ||
153 | struct snd_usb_midi_in_endpoint { | |
a509574e AG |
154 | struct snd_usb_midi *umidi; |
155 | struct urb *urbs[INPUT_URBS]; | |
1da177e4 | 156 | struct usbmidi_in_port { |
86e07d34 | 157 | struct snd_rawmidi_substream *substream; |
d05cc104 | 158 | u8 running_status_length; |
1da177e4 | 159 | } ports[0x10]; |
c8846970 | 160 | u8 seen_f5; |
a91e627e CL |
161 | bool in_sysex; |
162 | u8 last_cin; | |
c8846970 | 163 | u8 error_resubmit; |
1da177e4 LT |
164 | int current_port; |
165 | }; | |
166 | ||
a509574e | 167 | static void snd_usbmidi_do_output(struct snd_usb_midi_out_endpoint *ep); |
1da177e4 LT |
168 | |
169 | static const uint8_t snd_usbmidi_cin_length[] = { | |
170 | 0, 0, 2, 3, 3, 1, 2, 3, 3, 3, 3, 3, 2, 2, 3, 1 | |
171 | }; | |
172 | ||
173 | /* | |
174 | * Submits the URB, with error handling. | |
175 | */ | |
a509574e | 176 | static int snd_usbmidi_submit_urb(struct urb *urb, gfp_t flags) |
1da177e4 LT |
177 | { |
178 | int err = usb_submit_urb(urb, flags); | |
179 | if (err < 0 && err != -ENODEV) | |
0ba41d91 | 180 | dev_err(&urb->dev->dev, "usb_submit_urb: %d\n", err); |
1da177e4 LT |
181 | return err; |
182 | } | |
183 | ||
184 | /* | |
185 | * Error handling for URB completion functions. | |
186 | */ | |
0ba41d91 | 187 | static int snd_usbmidi_urb_error(const struct urb *urb) |
1da177e4 | 188 | { |
0ba41d91 | 189 | switch (urb->status) { |
c8846970 CL |
190 | /* manually unlinked, or device gone */ |
191 | case -ENOENT: | |
192 | case -ECONNRESET: | |
193 | case -ESHUTDOWN: | |
194 | case -ENODEV: | |
195 | return -ENODEV; | |
196 | /* errors that might occur during unplugging */ | |
38e2bfc9 PZ |
197 | case -EPROTO: |
198 | case -ETIME: | |
199 | case -EILSEQ: | |
c8846970 CL |
200 | return -EIO; |
201 | default: | |
0ba41d91 | 202 | dev_err(&urb->dev->dev, "urb status %d\n", urb->status); |
c8846970 CL |
203 | return 0; /* continue */ |
204 | } | |
1da177e4 LT |
205 | } |
206 | ||
207 | /* | |
208 | * Receives a chunk of MIDI data. | |
209 | */ | |
a509574e AG |
210 | static void snd_usbmidi_input_data(struct snd_usb_midi_in_endpoint *ep, |
211 | int portidx, uint8_t *data, int length) | |
1da177e4 | 212 | { |
a509574e | 213 | struct usbmidi_in_port *port = &ep->ports[portidx]; |
1da177e4 LT |
214 | |
215 | if (!port->substream) { | |
0ba41d91 | 216 | dev_dbg(&ep->umidi->dev->dev, "unexpected port %d!\n", portidx); |
1da177e4 LT |
217 | return; |
218 | } | |
219 | if (!test_bit(port->substream->number, &ep->umidi->input_triggered)) | |
220 | return; | |
221 | snd_rawmidi_receive(port->substream, data, length); | |
222 | } | |
223 | ||
224 | #ifdef DUMP_PACKETS | |
225 | static void dump_urb(const char *type, const u8 *data, int length) | |
226 | { | |
227 | snd_printk(KERN_DEBUG "%s packet: [", type); | |
228 | for (; length > 0; ++data, --length) | |
5659f244 TI |
229 | printk(KERN_CONT " %02x", *data); |
230 | printk(KERN_CONT " ]\n"); | |
1da177e4 LT |
231 | } |
232 | #else | |
233 | #define dump_urb(type, data, length) /* nothing */ | |
234 | #endif | |
235 | ||
236 | /* | |
237 | * Processes the data read from the device. | |
238 | */ | |
a509574e | 239 | static void snd_usbmidi_in_urb_complete(struct urb *urb) |
1da177e4 | 240 | { |
a509574e | 241 | struct snd_usb_midi_in_endpoint *ep = urb->context; |
1da177e4 LT |
242 | |
243 | if (urb->status == 0) { | |
244 | dump_urb("received", urb->transfer_buffer, urb->actual_length); | |
245 | ep->umidi->usb_protocol_ops->input(ep, urb->transfer_buffer, | |
246 | urb->actual_length); | |
247 | } else { | |
0ba41d91 | 248 | int err = snd_usbmidi_urb_error(urb); |
c8846970 CL |
249 | if (err < 0) { |
250 | if (err != -ENODEV) { | |
251 | ep->error_resubmit = 1; | |
252 | mod_timer(&ep->umidi->error_timer, | |
253 | jiffies + ERROR_DELAY_JIFFIES); | |
254 | } | |
1da177e4 | 255 | return; |
c8846970 | 256 | } |
1da177e4 LT |
257 | } |
258 | ||
d82af9f9 | 259 | urb->dev = ep->umidi->dev; |
3cfc1eb1 | 260 | snd_usbmidi_submit_urb(urb, GFP_ATOMIC); |
1da177e4 LT |
261 | } |
262 | ||
a509574e | 263 | static void snd_usbmidi_out_urb_complete(struct urb *urb) |
1da177e4 | 264 | { |
ed4affa5 | 265 | struct out_urb_context *context = urb->context; |
a509574e | 266 | struct snd_usb_midi_out_endpoint *ep = context->ep; |
a65dd997 | 267 | unsigned int urb_index; |
1259d239 | 268 | unsigned long flags; |
1da177e4 | 269 | |
1259d239 | 270 | spin_lock_irqsave(&ep->buffer_lock, flags); |
a65dd997 CL |
271 | urb_index = context - ep->urbs; |
272 | ep->active_urbs &= ~(1 << urb_index); | |
273 | if (unlikely(ep->drain_urbs)) { | |
274 | ep->drain_urbs &= ~(1 << urb_index); | |
275 | wake_up(&ep->drain_wait); | |
276 | } | |
1259d239 | 277 | spin_unlock_irqrestore(&ep->buffer_lock, flags); |
1da177e4 | 278 | if (urb->status < 0) { |
0ba41d91 | 279 | int err = snd_usbmidi_urb_error(urb); |
c8846970 CL |
280 | if (err < 0) { |
281 | if (err != -ENODEV) | |
282 | mod_timer(&ep->umidi->error_timer, | |
283 | jiffies + ERROR_DELAY_JIFFIES); | |
1da177e4 | 284 | return; |
c8846970 | 285 | } |
1da177e4 LT |
286 | } |
287 | snd_usbmidi_do_output(ep); | |
288 | } | |
289 | ||
290 | /* | |
291 | * This is called when some data should be transferred to the device | |
292 | * (from one or more substreams). | |
293 | */ | |
a509574e | 294 | static void snd_usbmidi_do_output(struct snd_usb_midi_out_endpoint *ep) |
1da177e4 | 295 | { |
ed4affa5 | 296 | unsigned int urb_index; |
a509574e | 297 | struct urb *urb; |
1da177e4 LT |
298 | unsigned long flags; |
299 | ||
300 | spin_lock_irqsave(&ep->buffer_lock, flags); | |
d82af9f9 | 301 | if (ep->umidi->disconnected) { |
1da177e4 LT |
302 | spin_unlock_irqrestore(&ep->buffer_lock, flags); |
303 | return; | |
304 | } | |
305 | ||
a65dd997 | 306 | urb_index = ep->next_urb; |
ed4affa5 | 307 | for (;;) { |
a65dd997 CL |
308 | if (!(ep->active_urbs & (1 << urb_index))) { |
309 | urb = ep->urbs[urb_index].urb; | |
310 | urb->transfer_buffer_length = 0; | |
311 | ep->umidi->usb_protocol_ops->output(ep, urb); | |
312 | if (urb->transfer_buffer_length == 0) | |
ed4affa5 | 313 | break; |
1da177e4 | 314 | |
a65dd997 CL |
315 | dump_urb("sending", urb->transfer_buffer, |
316 | urb->transfer_buffer_length); | |
d82af9f9 | 317 | urb->dev = ep->umidi->dev; |
a65dd997 CL |
318 | if (snd_usbmidi_submit_urb(urb, GFP_ATOMIC) < 0) |
319 | break; | |
320 | ep->active_urbs |= 1 << urb_index; | |
321 | } | |
322 | if (++urb_index >= OUTPUT_URBS) | |
323 | urb_index = 0; | |
324 | if (urb_index == ep->next_urb) | |
ed4affa5 | 325 | break; |
1da177e4 | 326 | } |
a65dd997 | 327 | ep->next_urb = urb_index; |
1da177e4 LT |
328 | spin_unlock_irqrestore(&ep->buffer_lock, flags); |
329 | } | |
330 | ||
c7d9efdf | 331 | static void snd_usbmidi_out_work(struct work_struct *work) |
1da177e4 | 332 | { |
c7d9efdf TI |
333 | struct snd_usb_midi_out_endpoint *ep = |
334 | container_of(work, struct snd_usb_midi_out_endpoint, work); | |
1da177e4 LT |
335 | |
336 | snd_usbmidi_do_output(ep); | |
337 | } | |
338 | ||
c8846970 | 339 | /* called after transfers had been interrupted due to some USB error */ |
a6162afa | 340 | static void snd_usbmidi_error_timer(struct timer_list *t) |
c8846970 | 341 | { |
a6162afa | 342 | struct snd_usb_midi *umidi = from_timer(umidi, t, error_timer); |
4773d1fb | 343 | unsigned int i, j; |
c8846970 | 344 | |
c0792e00 TI |
345 | spin_lock(&umidi->disc_lock); |
346 | if (umidi->disconnected) { | |
347 | spin_unlock(&umidi->disc_lock); | |
348 | return; | |
349 | } | |
c8846970 | 350 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { |
86e07d34 | 351 | struct snd_usb_midi_in_endpoint *in = umidi->endpoints[i].in; |
c8846970 CL |
352 | if (in && in->error_resubmit) { |
353 | in->error_resubmit = 0; | |
4773d1fb | 354 | for (j = 0; j < INPUT_URBS; ++j) { |
66139a48 TI |
355 | if (atomic_read(&in->urbs[j]->use_count)) |
356 | continue; | |
d82af9f9 | 357 | in->urbs[j]->dev = umidi->dev; |
4773d1fb CL |
358 | snd_usbmidi_submit_urb(in->urbs[j], GFP_ATOMIC); |
359 | } | |
c8846970 CL |
360 | } |
361 | if (umidi->endpoints[i].out) | |
362 | snd_usbmidi_do_output(umidi->endpoints[i].out); | |
363 | } | |
c0792e00 | 364 | spin_unlock(&umidi->disc_lock); |
c8846970 CL |
365 | } |
366 | ||
1da177e4 | 367 | /* helper function to send static data that may not DMA-able */ |
a509574e | 368 | static int send_bulk_static_data(struct snd_usb_midi_out_endpoint *ep, |
1da177e4 LT |
369 | const void *data, int len) |
370 | { | |
ed4affa5 | 371 | int err = 0; |
52978be6 | 372 | void *buf = kmemdup(data, len, GFP_KERNEL); |
1da177e4 LT |
373 | if (!buf) |
374 | return -ENOMEM; | |
1da177e4 | 375 | dump_urb("sending", buf, len); |
ed4affa5 | 376 | if (ep->urbs[0].urb) |
d82af9f9 | 377 | err = usb_bulk_msg(ep->umidi->dev, ep->urbs[0].urb->pipe, |
ed4affa5 | 378 | buf, len, NULL, 250); |
1da177e4 LT |
379 | kfree(buf); |
380 | return err; | |
381 | } | |
382 | ||
383 | /* | |
384 | * Standard USB MIDI protocol: see the spec. | |
385 | * Midiman protocol: like the standard protocol, but the control byte is the | |
386 | * fourth byte in each packet, and uses length instead of CIN. | |
387 | */ | |
388 | ||
a509574e AG |
389 | static void snd_usbmidi_standard_input(struct snd_usb_midi_in_endpoint *ep, |
390 | uint8_t *buffer, int buffer_length) | |
1da177e4 LT |
391 | { |
392 | int i; | |
393 | ||
394 | for (i = 0; i + 3 < buffer_length; i += 4) | |
395 | if (buffer[i] != 0) { | |
396 | int cable = buffer[i] >> 4; | |
397 | int length = snd_usbmidi_cin_length[buffer[i] & 0x0f]; | |
a509574e AG |
398 | snd_usbmidi_input_data(ep, cable, &buffer[i + 1], |
399 | length); | |
1da177e4 LT |
400 | } |
401 | } | |
402 | ||
a509574e AG |
403 | static void snd_usbmidi_midiman_input(struct snd_usb_midi_in_endpoint *ep, |
404 | uint8_t *buffer, int buffer_length) | |
1da177e4 LT |
405 | { |
406 | int i; | |
407 | ||
408 | for (i = 0; i + 3 < buffer_length; i += 4) | |
409 | if (buffer[i + 3] != 0) { | |
410 | int port = buffer[i + 3] >> 4; | |
411 | int length = buffer[i + 3] & 3; | |
412 | snd_usbmidi_input_data(ep, port, &buffer[i], length); | |
413 | } | |
414 | } | |
415 | ||
d05cc104 CL |
416 | /* |
417 | * Buggy M-Audio device: running status on input results in a packet that has | |
418 | * the data bytes but not the status byte and that is marked with CIN 4. | |
419 | */ | |
420 | static void snd_usbmidi_maudio_broken_running_status_input( | |
a509574e AG |
421 | struct snd_usb_midi_in_endpoint *ep, |
422 | uint8_t *buffer, int buffer_length) | |
d05cc104 CL |
423 | { |
424 | int i; | |
425 | ||
426 | for (i = 0; i + 3 < buffer_length; i += 4) | |
427 | if (buffer[i] != 0) { | |
428 | int cable = buffer[i] >> 4; | |
429 | u8 cin = buffer[i] & 0x0f; | |
430 | struct usbmidi_in_port *port = &ep->ports[cable]; | |
431 | int length; | |
21af7d8c | 432 | |
d05cc104 CL |
433 | length = snd_usbmidi_cin_length[cin]; |
434 | if (cin == 0xf && buffer[i + 1] >= 0xf8) | |
435 | ; /* realtime msg: no running status change */ | |
436 | else if (cin >= 0x8 && cin <= 0xe) | |
437 | /* channel msg */ | |
438 | port->running_status_length = length - 1; | |
439 | else if (cin == 0x4 && | |
440 | port->running_status_length != 0 && | |
441 | buffer[i + 1] < 0x80) | |
442 | /* CIN 4 that is not a SysEx */ | |
443 | length = port->running_status_length; | |
444 | else | |
445 | /* | |
446 | * All other msgs cannot begin running status. | |
447 | * (A channel msg sent as two or three CIN 0xF | |
448 | * packets could in theory, but this device | |
449 | * doesn't use this format.) | |
450 | */ | |
451 | port->running_status_length = 0; | |
a509574e AG |
452 | snd_usbmidi_input_data(ep, cable, &buffer[i + 1], |
453 | length); | |
d05cc104 CL |
454 | } |
455 | } | |
456 | ||
a91e627e CL |
457 | /* |
458 | * QinHeng CH345 is buggy: every second packet inside a SysEx has not CIN 4 | |
459 | * but the previously seen CIN, but still with three data bytes. | |
460 | */ | |
461 | static void ch345_broken_sysex_input(struct snd_usb_midi_in_endpoint *ep, | |
462 | uint8_t *buffer, int buffer_length) | |
463 | { | |
464 | unsigned int i, cin, length; | |
465 | ||
466 | for (i = 0; i + 3 < buffer_length; i += 4) { | |
467 | if (buffer[i] == 0 && i > 0) | |
468 | break; | |
469 | cin = buffer[i] & 0x0f; | |
470 | if (ep->in_sysex && | |
471 | cin == ep->last_cin && | |
472 | (buffer[i + 1 + (cin == 0x6)] & 0x80) == 0) | |
473 | cin = 0x4; | |
474 | #if 0 | |
475 | if (buffer[i + 1] == 0x90) { | |
476 | /* | |
477 | * Either a corrupted running status or a real note-on | |
478 | * message; impossible to detect reliably. | |
479 | */ | |
480 | } | |
481 | #endif | |
482 | length = snd_usbmidi_cin_length[cin]; | |
483 | snd_usbmidi_input_data(ep, 0, &buffer[i + 1], length); | |
484 | ep->in_sysex = cin == 0x4; | |
485 | if (!ep->in_sysex) | |
486 | ep->last_cin = cin; | |
487 | } | |
488 | } | |
489 | ||
61870aed CL |
490 | /* |
491 | * CME protocol: like the standard protocol, but SysEx commands are sent as a | |
492 | * single USB packet preceded by a 0x0F byte. | |
493 | */ | |
494 | static void snd_usbmidi_cme_input(struct snd_usb_midi_in_endpoint *ep, | |
495 | uint8_t *buffer, int buffer_length) | |
496 | { | |
497 | if (buffer_length < 2 || (buffer[0] & 0x0f) != 0x0f) | |
498 | snd_usbmidi_standard_input(ep, buffer, buffer_length); | |
499 | else | |
500 | snd_usbmidi_input_data(ep, buffer[0] >> 4, | |
501 | &buffer[1], buffer_length - 1); | |
502 | } | |
503 | ||
1da177e4 LT |
504 | /* |
505 | * Adds one USB MIDI packet to the output buffer. | |
506 | */ | |
a509574e AG |
507 | static void snd_usbmidi_output_standard_packet(struct urb *urb, uint8_t p0, |
508 | uint8_t p1, uint8_t p2, | |
509 | uint8_t p3) | |
1da177e4 LT |
510 | { |
511 | ||
a509574e AG |
512 | uint8_t *buf = |
513 | (uint8_t *)urb->transfer_buffer + urb->transfer_buffer_length; | |
1da177e4 LT |
514 | buf[0] = p0; |
515 | buf[1] = p1; | |
516 | buf[2] = p2; | |
517 | buf[3] = p3; | |
518 | urb->transfer_buffer_length += 4; | |
519 | } | |
520 | ||
521 | /* | |
522 | * Adds one Midiman packet to the output buffer. | |
523 | */ | |
a509574e AG |
524 | static void snd_usbmidi_output_midiman_packet(struct urb *urb, uint8_t p0, |
525 | uint8_t p1, uint8_t p2, | |
526 | uint8_t p3) | |
1da177e4 LT |
527 | { |
528 | ||
a509574e AG |
529 | uint8_t *buf = |
530 | (uint8_t *)urb->transfer_buffer + urb->transfer_buffer_length; | |
1da177e4 LT |
531 | buf[0] = p1; |
532 | buf[1] = p2; | |
533 | buf[2] = p3; | |
534 | buf[3] = (p0 & 0xf0) | snd_usbmidi_cin_length[p0 & 0x0f]; | |
535 | urb->transfer_buffer_length += 4; | |
536 | } | |
537 | ||
538 | /* | |
539 | * Converts MIDI commands to USB MIDI packets. | |
540 | */ | |
a509574e AG |
541 | static void snd_usbmidi_transmit_byte(struct usbmidi_out_port *port, |
542 | uint8_t b, struct urb *urb) | |
1da177e4 LT |
543 | { |
544 | uint8_t p0 = port->cable; | |
545 | void (*output_packet)(struct urb*, uint8_t, uint8_t, uint8_t, uint8_t) = | |
546 | port->ep->umidi->usb_protocol_ops->output_packet; | |
547 | ||
548 | if (b >= 0xf8) { | |
549 | output_packet(urb, p0 | 0x0f, b, 0, 0); | |
550 | } else if (b >= 0xf0) { | |
551 | switch (b) { | |
552 | case 0xf0: | |
553 | port->data[0] = b; | |
554 | port->state = STATE_SYSEX_1; | |
555 | break; | |
556 | case 0xf1: | |
557 | case 0xf3: | |
558 | port->data[0] = b; | |
559 | port->state = STATE_1PARAM; | |
560 | break; | |
561 | case 0xf2: | |
562 | port->data[0] = b; | |
563 | port->state = STATE_2PARAM_1; | |
564 | break; | |
565 | case 0xf4: | |
566 | case 0xf5: | |
567 | port->state = STATE_UNKNOWN; | |
568 | break; | |
569 | case 0xf6: | |
570 | output_packet(urb, p0 | 0x05, 0xf6, 0, 0); | |
571 | port->state = STATE_UNKNOWN; | |
572 | break; | |
573 | case 0xf7: | |
574 | switch (port->state) { | |
575 | case STATE_SYSEX_0: | |
576 | output_packet(urb, p0 | 0x05, 0xf7, 0, 0); | |
577 | break; | |
578 | case STATE_SYSEX_1: | |
a509574e AG |
579 | output_packet(urb, p0 | 0x06, port->data[0], |
580 | 0xf7, 0); | |
1da177e4 LT |
581 | break; |
582 | case STATE_SYSEX_2: | |
a509574e AG |
583 | output_packet(urb, p0 | 0x07, port->data[0], |
584 | port->data[1], 0xf7); | |
1da177e4 LT |
585 | break; |
586 | } | |
587 | port->state = STATE_UNKNOWN; | |
588 | break; | |
589 | } | |
590 | } else if (b >= 0x80) { | |
591 | port->data[0] = b; | |
592 | if (b >= 0xc0 && b <= 0xdf) | |
593 | port->state = STATE_1PARAM; | |
594 | else | |
595 | port->state = STATE_2PARAM_1; | |
596 | } else { /* b < 0x80 */ | |
597 | switch (port->state) { | |
598 | case STATE_1PARAM: | |
599 | if (port->data[0] < 0xf0) { | |
600 | p0 |= port->data[0] >> 4; | |
601 | } else { | |
602 | p0 |= 0x02; | |
603 | port->state = STATE_UNKNOWN; | |
604 | } | |
605 | output_packet(urb, p0, port->data[0], b, 0); | |
606 | break; | |
607 | case STATE_2PARAM_1: | |
608 | port->data[1] = b; | |
609 | port->state = STATE_2PARAM_2; | |
610 | break; | |
611 | case STATE_2PARAM_2: | |
612 | if (port->data[0] < 0xf0) { | |
613 | p0 |= port->data[0] >> 4; | |
614 | port->state = STATE_2PARAM_1; | |
615 | } else { | |
616 | p0 |= 0x03; | |
617 | port->state = STATE_UNKNOWN; | |
618 | } | |
619 | output_packet(urb, p0, port->data[0], port->data[1], b); | |
620 | break; | |
621 | case STATE_SYSEX_0: | |
622 | port->data[0] = b; | |
623 | port->state = STATE_SYSEX_1; | |
624 | break; | |
625 | case STATE_SYSEX_1: | |
626 | port->data[1] = b; | |
627 | port->state = STATE_SYSEX_2; | |
628 | break; | |
629 | case STATE_SYSEX_2: | |
a509574e AG |
630 | output_packet(urb, p0 | 0x04, port->data[0], |
631 | port->data[1], b); | |
1da177e4 LT |
632 | port->state = STATE_SYSEX_0; |
633 | break; | |
634 | } | |
635 | } | |
636 | } | |
637 | ||
a509574e | 638 | static void snd_usbmidi_standard_output(struct snd_usb_midi_out_endpoint *ep, |
ed4affa5 | 639 | struct urb *urb) |
1da177e4 | 640 | { |
1da177e4 LT |
641 | int p; |
642 | ||
643 | /* FIXME: lower-numbered ports can starve higher-numbered ports */ | |
644 | for (p = 0; p < 0x10; ++p) { | |
a509574e | 645 | struct usbmidi_out_port *port = &ep->ports[p]; |
1da177e4 LT |
646 | if (!port->active) |
647 | continue; | |
648 | while (urb->transfer_buffer_length + 3 < ep->max_transfer) { | |
649 | uint8_t b; | |
650 | if (snd_rawmidi_transmit(port->substream, &b, 1) != 1) { | |
651 | port->active = 0; | |
652 | break; | |
653 | } | |
654 | snd_usbmidi_transmit_byte(port, b, urb); | |
655 | } | |
656 | } | |
657 | } | |
658 | ||
17074c1a | 659 | static const struct usb_protocol_ops snd_usbmidi_standard_ops = { |
1da177e4 LT |
660 | .input = snd_usbmidi_standard_input, |
661 | .output = snd_usbmidi_standard_output, | |
662 | .output_packet = snd_usbmidi_output_standard_packet, | |
663 | }; | |
664 | ||
17074c1a | 665 | static const struct usb_protocol_ops snd_usbmidi_midiman_ops = { |
1da177e4 | 666 | .input = snd_usbmidi_midiman_input, |
21af7d8c | 667 | .output = snd_usbmidi_standard_output, |
1da177e4 LT |
668 | .output_packet = snd_usbmidi_output_midiman_packet, |
669 | }; | |
670 | ||
17074c1a JL |
671 | static const |
672 | struct usb_protocol_ops snd_usbmidi_maudio_broken_running_status_ops = { | |
d05cc104 | 673 | .input = snd_usbmidi_maudio_broken_running_status_input, |
21af7d8c | 674 | .output = snd_usbmidi_standard_output, |
d05cc104 CL |
675 | .output_packet = snd_usbmidi_output_standard_packet, |
676 | }; | |
677 | ||
17074c1a | 678 | static const struct usb_protocol_ops snd_usbmidi_cme_ops = { |
61870aed CL |
679 | .input = snd_usbmidi_cme_input, |
680 | .output = snd_usbmidi_standard_output, | |
681 | .output_packet = snd_usbmidi_output_standard_packet, | |
682 | }; | |
683 | ||
17074c1a | 684 | static const struct usb_protocol_ops snd_usbmidi_ch345_broken_sysex_ops = { |
a91e627e CL |
685 | .input = ch345_broken_sysex_input, |
686 | .output = snd_usbmidi_standard_output, | |
687 | .output_packet = snd_usbmidi_output_standard_packet, | |
688 | }; | |
689 | ||
4434ade8 KF |
690 | /* |
691 | * AKAI MPD16 protocol: | |
692 | * | |
693 | * For control port (endpoint 1): | |
694 | * ============================== | |
695 | * One or more chunks consisting of first byte of (0x10 | msg_len) and then a | |
696 | * SysEx message (msg_len=9 bytes long). | |
697 | * | |
698 | * For data port (endpoint 2): | |
699 | * =========================== | |
700 | * One or more chunks consisting of first byte of (0x20 | msg_len) and then a | |
701 | * MIDI message (msg_len bytes long) | |
702 | * | |
703 | * Messages sent: Active Sense, Note On, Poly Pressure, Control Change. | |
704 | */ | |
705 | static void snd_usbmidi_akai_input(struct snd_usb_midi_in_endpoint *ep, | |
706 | uint8_t *buffer, int buffer_length) | |
707 | { | |
708 | unsigned int pos = 0; | |
709 | unsigned int len = (unsigned int)buffer_length; | |
710 | while (pos < len) { | |
711 | unsigned int port = (buffer[pos] >> 4) - 1; | |
712 | unsigned int msg_len = buffer[pos] & 0x0f; | |
713 | pos++; | |
714 | if (pos + msg_len <= len && port < 2) | |
715 | snd_usbmidi_input_data(ep, 0, &buffer[pos], msg_len); | |
716 | pos += msg_len; | |
717 | } | |
718 | } | |
719 | ||
720 | #define MAX_AKAI_SYSEX_LEN 9 | |
721 | ||
722 | static void snd_usbmidi_akai_output(struct snd_usb_midi_out_endpoint *ep, | |
723 | struct urb *urb) | |
724 | { | |
725 | uint8_t *msg; | |
726 | int pos, end, count, buf_end; | |
727 | uint8_t tmp[MAX_AKAI_SYSEX_LEN]; | |
728 | struct snd_rawmidi_substream *substream = ep->ports[0].substream; | |
729 | ||
730 | if (!ep->ports[0].active) | |
731 | return; | |
732 | ||
733 | msg = urb->transfer_buffer + urb->transfer_buffer_length; | |
734 | buf_end = ep->max_transfer - MAX_AKAI_SYSEX_LEN - 1; | |
735 | ||
736 | /* only try adding more data when there's space for at least 1 SysEx */ | |
737 | while (urb->transfer_buffer_length < buf_end) { | |
738 | count = snd_rawmidi_transmit_peek(substream, | |
739 | tmp, MAX_AKAI_SYSEX_LEN); | |
740 | if (!count) { | |
741 | ep->ports[0].active = 0; | |
742 | return; | |
743 | } | |
744 | /* try to skip non-SysEx data */ | |
745 | for (pos = 0; pos < count && tmp[pos] != 0xF0; pos++) | |
746 | ; | |
747 | ||
748 | if (pos > 0) { | |
749 | snd_rawmidi_transmit_ack(substream, pos); | |
750 | continue; | |
751 | } | |
752 | ||
753 | /* look for the start or end marker */ | |
754 | for (end = 1; end < count && tmp[end] < 0xF0; end++) | |
755 | ; | |
756 | ||
757 | /* next SysEx started before the end of current one */ | |
758 | if (end < count && tmp[end] == 0xF0) { | |
759 | /* it's incomplete - drop it */ | |
760 | snd_rawmidi_transmit_ack(substream, end); | |
761 | continue; | |
762 | } | |
763 | /* SysEx complete */ | |
764 | if (end < count && tmp[end] == 0xF7) { | |
765 | /* queue it, ack it, and get the next one */ | |
766 | count = end + 1; | |
767 | msg[0] = 0x10 | count; | |
768 | memcpy(&msg[1], tmp, count); | |
769 | snd_rawmidi_transmit_ack(substream, count); | |
770 | urb->transfer_buffer_length += count + 1; | |
771 | msg += count + 1; | |
772 | continue; | |
773 | } | |
774 | /* less than 9 bytes and no end byte - wait for more */ | |
775 | if (count < MAX_AKAI_SYSEX_LEN) { | |
776 | ep->ports[0].active = 0; | |
777 | return; | |
778 | } | |
779 | /* 9 bytes and no end marker in sight - malformed, skip it */ | |
780 | snd_rawmidi_transmit_ack(substream, count); | |
781 | } | |
782 | } | |
783 | ||
17074c1a | 784 | static const struct usb_protocol_ops snd_usbmidi_akai_ops = { |
4434ade8 KF |
785 | .input = snd_usbmidi_akai_input, |
786 | .output = snd_usbmidi_akai_output, | |
787 | }; | |
788 | ||
1da177e4 LT |
789 | /* |
790 | * Novation USB MIDI protocol: number of data bytes is in the first byte | |
791 | * (when receiving) (+1!) or in the second byte (when sending); data begins | |
792 | * at the third byte. | |
793 | */ | |
794 | ||
a509574e AG |
795 | static void snd_usbmidi_novation_input(struct snd_usb_midi_in_endpoint *ep, |
796 | uint8_t *buffer, int buffer_length) | |
1da177e4 LT |
797 | { |
798 | if (buffer_length < 2 || !buffer[0] || buffer_length < buffer[0] + 1) | |
799 | return; | |
800 | snd_usbmidi_input_data(ep, 0, &buffer[2], buffer[0] - 1); | |
801 | } | |
802 | ||
a509574e | 803 | static void snd_usbmidi_novation_output(struct snd_usb_midi_out_endpoint *ep, |
ed4affa5 | 804 | struct urb *urb) |
1da177e4 | 805 | { |
a509574e | 806 | uint8_t *transfer_buffer; |
1da177e4 LT |
807 | int count; |
808 | ||
809 | if (!ep->ports[0].active) | |
810 | return; | |
ed4affa5 | 811 | transfer_buffer = urb->transfer_buffer; |
1da177e4 LT |
812 | count = snd_rawmidi_transmit(ep->ports[0].substream, |
813 | &transfer_buffer[2], | |
814 | ep->max_transfer - 2); | |
815 | if (count < 1) { | |
816 | ep->ports[0].active = 0; | |
817 | return; | |
818 | } | |
819 | transfer_buffer[0] = 0; | |
820 | transfer_buffer[1] = count; | |
ed4affa5 | 821 | urb->transfer_buffer_length = 2 + count; |
1da177e4 LT |
822 | } |
823 | ||
17074c1a | 824 | static const struct usb_protocol_ops snd_usbmidi_novation_ops = { |
1da177e4 LT |
825 | .input = snd_usbmidi_novation_input, |
826 | .output = snd_usbmidi_novation_output, | |
827 | }; | |
828 | ||
829 | /* | |
c7f57216 | 830 | * "raw" protocol: just move raw MIDI bytes from/to the endpoint |
1da177e4 LT |
831 | */ |
832 | ||
a509574e AG |
833 | static void snd_usbmidi_raw_input(struct snd_usb_midi_in_endpoint *ep, |
834 | uint8_t *buffer, int buffer_length) | |
1da177e4 LT |
835 | { |
836 | snd_usbmidi_input_data(ep, 0, buffer, buffer_length); | |
837 | } | |
838 | ||
a509574e | 839 | static void snd_usbmidi_raw_output(struct snd_usb_midi_out_endpoint *ep, |
ed4affa5 | 840 | struct urb *urb) |
1da177e4 LT |
841 | { |
842 | int count; | |
843 | ||
844 | if (!ep->ports[0].active) | |
845 | return; | |
846 | count = snd_rawmidi_transmit(ep->ports[0].substream, | |
ed4affa5 | 847 | urb->transfer_buffer, |
1da177e4 LT |
848 | ep->max_transfer); |
849 | if (count < 1) { | |
850 | ep->ports[0].active = 0; | |
851 | return; | |
852 | } | |
ed4affa5 | 853 | urb->transfer_buffer_length = count; |
1da177e4 LT |
854 | } |
855 | ||
17074c1a | 856 | static const struct usb_protocol_ops snd_usbmidi_raw_ops = { |
6155aff8 CL |
857 | .input = snd_usbmidi_raw_input, |
858 | .output = snd_usbmidi_raw_output, | |
1da177e4 LT |
859 | }; |
860 | ||
1ef0e0a0 KA |
861 | /* |
862 | * FTDI protocol: raw MIDI bytes, but input packets have two modem status bytes. | |
863 | */ | |
864 | ||
a509574e AG |
865 | static void snd_usbmidi_ftdi_input(struct snd_usb_midi_in_endpoint *ep, |
866 | uint8_t *buffer, int buffer_length) | |
1ef0e0a0 KA |
867 | { |
868 | if (buffer_length > 2) | |
869 | snd_usbmidi_input_data(ep, 0, buffer + 2, buffer_length - 2); | |
870 | } | |
871 | ||
17074c1a | 872 | static const struct usb_protocol_ops snd_usbmidi_ftdi_ops = { |
1ef0e0a0 KA |
873 | .input = snd_usbmidi_ftdi_input, |
874 | .output = snd_usbmidi_raw_output, | |
875 | }; | |
876 | ||
030a07e4 KW |
877 | static void snd_usbmidi_us122l_input(struct snd_usb_midi_in_endpoint *ep, |
878 | uint8_t *buffer, int buffer_length) | |
879 | { | |
880 | if (buffer_length != 9) | |
881 | return; | |
882 | buffer_length = 8; | |
883 | while (buffer_length && buffer[buffer_length - 1] == 0xFD) | |
884 | buffer_length--; | |
885 | if (buffer_length) | |
886 | snd_usbmidi_input_data(ep, 0, buffer, buffer_length); | |
887 | } | |
888 | ||
ed4affa5 CL |
889 | static void snd_usbmidi_us122l_output(struct snd_usb_midi_out_endpoint *ep, |
890 | struct urb *urb) | |
030a07e4 KW |
891 | { |
892 | int count; | |
893 | ||
894 | if (!ep->ports[0].active) | |
895 | return; | |
4f4e8f69 PZ |
896 | switch (snd_usb_get_speed(ep->umidi->dev)) { |
897 | case USB_SPEED_HIGH: | |
898 | case USB_SPEED_SUPER: | |
89e448b3 | 899 | case USB_SPEED_SUPER_PLUS: |
4f4e8f69 PZ |
900 | count = 1; |
901 | break; | |
902 | default: | |
903 | count = 2; | |
904 | } | |
030a07e4 | 905 | count = snd_rawmidi_transmit(ep->ports[0].substream, |
ed4affa5 | 906 | urb->transfer_buffer, |
030a07e4 KW |
907 | count); |
908 | if (count < 1) { | |
909 | ep->ports[0].active = 0; | |
910 | return; | |
911 | } | |
912 | ||
921eebdc KW |
913 | memset(urb->transfer_buffer + count, 0xFD, ep->max_transfer - count); |
914 | urb->transfer_buffer_length = ep->max_transfer; | |
030a07e4 KW |
915 | } |
916 | ||
17074c1a | 917 | static const struct usb_protocol_ops snd_usbmidi_122l_ops = { |
030a07e4 KW |
918 | .input = snd_usbmidi_us122l_input, |
919 | .output = snd_usbmidi_us122l_output, | |
920 | }; | |
921 | ||
1da177e4 LT |
922 | /* |
923 | * Emagic USB MIDI protocol: raw MIDI with "F5 xx" port switching. | |
924 | */ | |
925 | ||
a509574e | 926 | static void snd_usbmidi_emagic_init_out(struct snd_usb_midi_out_endpoint *ep) |
1da177e4 LT |
927 | { |
928 | static const u8 init_data[] = { | |
929 | /* initialization magic: "get version" */ | |
930 | 0xf0, | |
931 | 0x00, 0x20, 0x31, /* Emagic */ | |
932 | 0x64, /* Unitor8 */ | |
933 | 0x0b, /* version number request */ | |
934 | 0x00, /* command version */ | |
935 | 0x00, /* EEPROM, box 0 */ | |
936 | 0xf7 | |
937 | }; | |
938 | send_bulk_static_data(ep, init_data, sizeof(init_data)); | |
939 | /* while we're at it, pour on more magic */ | |
940 | send_bulk_static_data(ep, init_data, sizeof(init_data)); | |
941 | } | |
942 | ||
a509574e | 943 | static void snd_usbmidi_emagic_finish_out(struct snd_usb_midi_out_endpoint *ep) |
1da177e4 LT |
944 | { |
945 | static const u8 finish_data[] = { | |
946 | /* switch to patch mode with last preset */ | |
947 | 0xf0, | |
948 | 0x00, 0x20, 0x31, /* Emagic */ | |
949 | 0x64, /* Unitor8 */ | |
950 | 0x10, /* patch switch command */ | |
951 | 0x00, /* command version */ | |
952 | 0x7f, /* to all boxes */ | |
953 | 0x40, /* last preset in EEPROM */ | |
954 | 0xf7 | |
955 | }; | |
956 | send_bulk_static_data(ep, finish_data, sizeof(finish_data)); | |
957 | } | |
958 | ||
a509574e AG |
959 | static void snd_usbmidi_emagic_input(struct snd_usb_midi_in_endpoint *ep, |
960 | uint8_t *buffer, int buffer_length) | |
1da177e4 | 961 | { |
c347e9fc CL |
962 | int i; |
963 | ||
964 | /* FF indicates end of valid data */ | |
965 | for (i = 0; i < buffer_length; ++i) | |
966 | if (buffer[i] == 0xff) { | |
967 | buffer_length = i; | |
968 | break; | |
969 | } | |
1da177e4 LT |
970 | |
971 | /* handle F5 at end of last buffer */ | |
972 | if (ep->seen_f5) | |
973 | goto switch_port; | |
974 | ||
975 | while (buffer_length > 0) { | |
1da177e4 LT |
976 | /* determine size of data until next F5 */ |
977 | for (i = 0; i < buffer_length; ++i) | |
978 | if (buffer[i] == 0xf5) | |
979 | break; | |
980 | snd_usbmidi_input_data(ep, ep->current_port, buffer, i); | |
981 | buffer += i; | |
982 | buffer_length -= i; | |
983 | ||
984 | if (buffer_length <= 0) | |
985 | break; | |
986 | /* assert(buffer[0] == 0xf5); */ | |
987 | ep->seen_f5 = 1; | |
988 | ++buffer; | |
989 | --buffer_length; | |
990 | ||
991 | switch_port: | |
992 | if (buffer_length <= 0) | |
993 | break; | |
994 | if (buffer[0] < 0x80) { | |
995 | ep->current_port = (buffer[0] - 1) & 15; | |
996 | ++buffer; | |
997 | --buffer_length; | |
998 | } | |
999 | ep->seen_f5 = 0; | |
1000 | } | |
1001 | } | |
1002 | ||
a509574e | 1003 | static void snd_usbmidi_emagic_output(struct snd_usb_midi_out_endpoint *ep, |
ed4affa5 | 1004 | struct urb *urb) |
1da177e4 LT |
1005 | { |
1006 | int port0 = ep->current_port; | |
a509574e | 1007 | uint8_t *buf = urb->transfer_buffer; |
1da177e4 LT |
1008 | int buf_free = ep->max_transfer; |
1009 | int length, i; | |
1010 | ||
1011 | for (i = 0; i < 0x10; ++i) { | |
1012 | /* round-robin, starting at the last current port */ | |
1013 | int portnum = (port0 + i) & 15; | |
a509574e | 1014 | struct usbmidi_out_port *port = &ep->ports[portnum]; |
1da177e4 LT |
1015 | |
1016 | if (!port->active) | |
1017 | continue; | |
1018 | if (snd_rawmidi_transmit_peek(port->substream, buf, 1) != 1) { | |
1019 | port->active = 0; | |
1020 | continue; | |
1021 | } | |
1022 | ||
1023 | if (portnum != ep->current_port) { | |
1024 | if (buf_free < 2) | |
1025 | break; | |
1026 | ep->current_port = portnum; | |
1027 | buf[0] = 0xf5; | |
1028 | buf[1] = (portnum + 1) & 15; | |
1029 | buf += 2; | |
1030 | buf_free -= 2; | |
1031 | } | |
1032 | ||
1033 | if (buf_free < 1) | |
1034 | break; | |
1035 | length = snd_rawmidi_transmit(port->substream, buf, buf_free); | |
1036 | if (length > 0) { | |
1037 | buf += length; | |
1038 | buf_free -= length; | |
1039 | if (buf_free < 1) | |
1040 | break; | |
1041 | } | |
1042 | } | |
c347e9fc CL |
1043 | if (buf_free < ep->max_transfer && buf_free > 0) { |
1044 | *buf = 0xff; | |
1045 | --buf_free; | |
1046 | } | |
ed4affa5 | 1047 | urb->transfer_buffer_length = ep->max_transfer - buf_free; |
1da177e4 LT |
1048 | } |
1049 | ||
17074c1a | 1050 | static const struct usb_protocol_ops snd_usbmidi_emagic_ops = { |
1da177e4 LT |
1051 | .input = snd_usbmidi_emagic_input, |
1052 | .output = snd_usbmidi_emagic_output, | |
1053 | .init_out_endpoint = snd_usbmidi_emagic_init_out, | |
1054 | .finish_out_endpoint = snd_usbmidi_emagic_finish_out, | |
1055 | }; | |
1056 | ||
1057 | ||
a509574e | 1058 | static void update_roland_altsetting(struct snd_usb_midi *umidi) |
96f61d9a CL |
1059 | { |
1060 | struct usb_interface *intf; | |
1061 | struct usb_host_interface *hostif; | |
1062 | struct usb_interface_descriptor *intfd; | |
1063 | int is_light_load; | |
1064 | ||
1065 | intf = umidi->iface; | |
1066 | is_light_load = intf->cur_altsetting != intf->altsetting; | |
1067 | if (umidi->roland_load_ctl->private_value == is_light_load) | |
1068 | return; | |
1069 | hostif = &intf->altsetting[umidi->roland_load_ctl->private_value]; | |
1070 | intfd = get_iface_desc(hostif); | |
1071 | snd_usbmidi_input_stop(&umidi->list); | |
d82af9f9 | 1072 | usb_set_interface(umidi->dev, intfd->bInterfaceNumber, |
96f61d9a CL |
1073 | intfd->bAlternateSetting); |
1074 | snd_usbmidi_input_start(&umidi->list); | |
1075 | } | |
1076 | ||
f5f16541 TI |
1077 | static int substream_open(struct snd_rawmidi_substream *substream, int dir, |
1078 | int open) | |
96f61d9a | 1079 | { |
a509574e | 1080 | struct snd_usb_midi *umidi = substream->rmidi->private_data; |
96f61d9a CL |
1081 | struct snd_kcontrol *ctl; |
1082 | ||
59866da9 TI |
1083 | down_read(&umidi->disc_rwsem); |
1084 | if (umidi->disconnected) { | |
1085 | up_read(&umidi->disc_rwsem); | |
f5f16541 | 1086 | return open ? -ENODEV : 0; |
59866da9 TI |
1087 | } |
1088 | ||
96f61d9a CL |
1089 | mutex_lock(&umidi->mutex); |
1090 | if (open) { | |
f5f16541 | 1091 | if (!umidi->opened[0] && !umidi->opened[1]) { |
f5f16541 TI |
1092 | if (umidi->roland_load_ctl) { |
1093 | ctl = umidi->roland_load_ctl; | |
a509574e AG |
1094 | ctl->vd[0].access |= |
1095 | SNDRV_CTL_ELEM_ACCESS_INACTIVE; | |
f5f16541 | 1096 | snd_ctl_notify(umidi->card, |
96f61d9a | 1097 | SNDRV_CTL_EVENT_MASK_INFO, &ctl->id); |
f5f16541 TI |
1098 | update_roland_altsetting(umidi); |
1099 | } | |
96f61d9a | 1100 | } |
f5f16541 TI |
1101 | umidi->opened[dir]++; |
1102 | if (umidi->opened[1]) | |
1103 | snd_usbmidi_input_start(&umidi->list); | |
96f61d9a | 1104 | } else { |
f5f16541 TI |
1105 | umidi->opened[dir]--; |
1106 | if (!umidi->opened[1]) | |
1107 | snd_usbmidi_input_stop(&umidi->list); | |
1108 | if (!umidi->opened[0] && !umidi->opened[1]) { | |
1109 | if (umidi->roland_load_ctl) { | |
1110 | ctl = umidi->roland_load_ctl; | |
a509574e AG |
1111 | ctl->vd[0].access &= |
1112 | ~SNDRV_CTL_ELEM_ACCESS_INACTIVE; | |
f5f16541 | 1113 | snd_ctl_notify(umidi->card, |
96f61d9a | 1114 | SNDRV_CTL_EVENT_MASK_INFO, &ctl->id); |
f5f16541 | 1115 | } |
96f61d9a CL |
1116 | } |
1117 | } | |
1118 | mutex_unlock(&umidi->mutex); | |
59866da9 | 1119 | up_read(&umidi->disc_rwsem); |
f5f16541 | 1120 | return 0; |
96f61d9a CL |
1121 | } |
1122 | ||
86e07d34 | 1123 | static int snd_usbmidi_output_open(struct snd_rawmidi_substream *substream) |
1da177e4 | 1124 | { |
a509574e AG |
1125 | struct snd_usb_midi *umidi = substream->rmidi->private_data; |
1126 | struct usbmidi_out_port *port = NULL; | |
1da177e4 LT |
1127 | int i, j; |
1128 | ||
1129 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) | |
1130 | if (umidi->endpoints[i].out) | |
1131 | for (j = 0; j < 0x10; ++j) | |
1132 | if (umidi->endpoints[i].out->ports[j].substream == substream) { | |
1133 | port = &umidi->endpoints[i].out->ports[j]; | |
1134 | break; | |
1135 | } | |
1136 | if (!port) { | |
1137 | snd_BUG(); | |
1138 | return -ENXIO; | |
1139 | } | |
59866da9 | 1140 | |
1da177e4 LT |
1141 | substream->runtime->private_data = port; |
1142 | port->state = STATE_UNKNOWN; | |
f5f16541 | 1143 | return substream_open(substream, 0, 1); |
1da177e4 LT |
1144 | } |
1145 | ||
86e07d34 | 1146 | static int snd_usbmidi_output_close(struct snd_rawmidi_substream *substream) |
1da177e4 | 1147 | { |
f5f16541 | 1148 | return substream_open(substream, 0, 0); |
1da177e4 LT |
1149 | } |
1150 | ||
a509574e AG |
1151 | static void snd_usbmidi_output_trigger(struct snd_rawmidi_substream *substream, |
1152 | int up) | |
1da177e4 | 1153 | { |
a509574e AG |
1154 | struct usbmidi_out_port *port = |
1155 | (struct usbmidi_out_port *)substream->runtime->private_data; | |
1da177e4 LT |
1156 | |
1157 | port->active = up; | |
1158 | if (up) { | |
d82af9f9 | 1159 | if (port->ep->umidi->disconnected) { |
1da177e4 LT |
1160 | /* gobble up remaining bytes to prevent wait in |
1161 | * snd_rawmidi_drain_output */ | |
6aea5702 | 1162 | snd_rawmidi_proceed(substream); |
1da177e4 LT |
1163 | return; |
1164 | } | |
c7d9efdf | 1165 | queue_work(system_highpri_wq, &port->ep->work); |
1da177e4 LT |
1166 | } |
1167 | } | |
1168 | ||
a65dd997 CL |
1169 | static void snd_usbmidi_output_drain(struct snd_rawmidi_substream *substream) |
1170 | { | |
a509574e | 1171 | struct usbmidi_out_port *port = substream->runtime->private_data; |
a65dd997 CL |
1172 | struct snd_usb_midi_out_endpoint *ep = port->ep; |
1173 | unsigned int drain_urbs; | |
1174 | DEFINE_WAIT(wait); | |
1175 | long timeout = msecs_to_jiffies(50); | |
1176 | ||
29aac005 TI |
1177 | if (ep->umidi->disconnected) |
1178 | return; | |
a65dd997 CL |
1179 | /* |
1180 | * The substream buffer is empty, but some data might still be in the | |
1181 | * currently active URBs, so we have to wait for those to complete. | |
1182 | */ | |
1183 | spin_lock_irq(&ep->buffer_lock); | |
1184 | drain_urbs = ep->active_urbs; | |
1185 | if (drain_urbs) { | |
1186 | ep->drain_urbs |= drain_urbs; | |
1187 | do { | |
1188 | prepare_to_wait(&ep->drain_wait, &wait, | |
1189 | TASK_UNINTERRUPTIBLE); | |
1190 | spin_unlock_irq(&ep->buffer_lock); | |
1191 | timeout = schedule_timeout(timeout); | |
1192 | spin_lock_irq(&ep->buffer_lock); | |
1193 | drain_urbs &= ep->drain_urbs; | |
1194 | } while (drain_urbs && timeout); | |
1195 | finish_wait(&ep->drain_wait, &wait); | |
1196 | } | |
1197 | spin_unlock_irq(&ep->buffer_lock); | |
1198 | } | |
1199 | ||
86e07d34 | 1200 | static int snd_usbmidi_input_open(struct snd_rawmidi_substream *substream) |
1da177e4 | 1201 | { |
f5f16541 | 1202 | return substream_open(substream, 1, 1); |
1da177e4 LT |
1203 | } |
1204 | ||
86e07d34 | 1205 | static int snd_usbmidi_input_close(struct snd_rawmidi_substream *substream) |
1da177e4 | 1206 | { |
f5f16541 | 1207 | return substream_open(substream, 1, 0); |
1da177e4 LT |
1208 | } |
1209 | ||
a509574e AG |
1210 | static void snd_usbmidi_input_trigger(struct snd_rawmidi_substream *substream, |
1211 | int up) | |
1da177e4 | 1212 | { |
a509574e | 1213 | struct snd_usb_midi *umidi = substream->rmidi->private_data; |
1da177e4 LT |
1214 | |
1215 | if (up) | |
1216 | set_bit(substream->number, &umidi->input_triggered); | |
1217 | else | |
1218 | clear_bit(substream->number, &umidi->input_triggered); | |
1219 | } | |
1220 | ||
f43e5407 | 1221 | static const struct snd_rawmidi_ops snd_usbmidi_output_ops = { |
1da177e4 LT |
1222 | .open = snd_usbmidi_output_open, |
1223 | .close = snd_usbmidi_output_close, | |
1224 | .trigger = snd_usbmidi_output_trigger, | |
a65dd997 | 1225 | .drain = snd_usbmidi_output_drain, |
1da177e4 LT |
1226 | }; |
1227 | ||
f43e5407 | 1228 | static const struct snd_rawmidi_ops snd_usbmidi_input_ops = { |
1da177e4 LT |
1229 | .open = snd_usbmidi_input_open, |
1230 | .close = snd_usbmidi_input_close, | |
1231 | .trigger = snd_usbmidi_input_trigger | |
1232 | }; | |
1233 | ||
ed4affa5 CL |
1234 | static void free_urb_and_buffer(struct snd_usb_midi *umidi, struct urb *urb, |
1235 | unsigned int buffer_length) | |
1236 | { | |
997ea58e DM |
1237 | usb_free_coherent(umidi->dev, buffer_length, |
1238 | urb->transfer_buffer, urb->transfer_dma); | |
ed4affa5 CL |
1239 | usb_free_urb(urb); |
1240 | } | |
1241 | ||
1da177e4 LT |
1242 | /* |
1243 | * Frees an input endpoint. | |
1244 | * May be called when ep hasn't been initialized completely. | |
1245 | */ | |
a509574e | 1246 | static void snd_usbmidi_in_endpoint_delete(struct snd_usb_midi_in_endpoint *ep) |
1da177e4 | 1247 | { |
4773d1fb CL |
1248 | unsigned int i; |
1249 | ||
ed4affa5 CL |
1250 | for (i = 0; i < INPUT_URBS; ++i) |
1251 | if (ep->urbs[i]) | |
1252 | free_urb_and_buffer(ep->umidi, ep->urbs[i], | |
1253 | ep->urbs[i]->transfer_buffer_length); | |
1da177e4 LT |
1254 | kfree(ep); |
1255 | } | |
1256 | ||
1257 | /* | |
1258 | * Creates an input endpoint. | |
1259 | */ | |
a509574e AG |
1260 | static int snd_usbmidi_in_endpoint_create(struct snd_usb_midi *umidi, |
1261 | struct snd_usb_midi_endpoint_info *ep_info, | |
1262 | struct snd_usb_midi_endpoint *rep) | |
1da177e4 | 1263 | { |
a509574e AG |
1264 | struct snd_usb_midi_in_endpoint *ep; |
1265 | void *buffer; | |
1da177e4 LT |
1266 | unsigned int pipe; |
1267 | int length; | |
4773d1fb | 1268 | unsigned int i; |
738d9edc | 1269 | int err; |
1da177e4 LT |
1270 | |
1271 | rep->in = NULL; | |
561b220a | 1272 | ep = kzalloc(sizeof(*ep), GFP_KERNEL); |
1da177e4 LT |
1273 | if (!ep) |
1274 | return -ENOMEM; | |
1275 | ep->umidi = umidi; | |
1276 | ||
4773d1fb CL |
1277 | for (i = 0; i < INPUT_URBS; ++i) { |
1278 | ep->urbs[i] = usb_alloc_urb(0, GFP_KERNEL); | |
1279 | if (!ep->urbs[i]) { | |
738d9edc TI |
1280 | err = -ENOMEM; |
1281 | goto error; | |
4773d1fb | 1282 | } |
1da177e4 LT |
1283 | } |
1284 | if (ep_info->in_interval) | |
d82af9f9 | 1285 | pipe = usb_rcvintpipe(umidi->dev, ep_info->in_ep); |
1da177e4 | 1286 | else |
d82af9f9 CL |
1287 | pipe = usb_rcvbulkpipe(umidi->dev, ep_info->in_ep); |
1288 | length = usb_maxpacket(umidi->dev, pipe, 0); | |
4773d1fb | 1289 | for (i = 0; i < INPUT_URBS; ++i) { |
997ea58e DM |
1290 | buffer = usb_alloc_coherent(umidi->dev, length, GFP_KERNEL, |
1291 | &ep->urbs[i]->transfer_dma); | |
4773d1fb | 1292 | if (!buffer) { |
738d9edc TI |
1293 | err = -ENOMEM; |
1294 | goto error; | |
4773d1fb CL |
1295 | } |
1296 | if (ep_info->in_interval) | |
d82af9f9 | 1297 | usb_fill_int_urb(ep->urbs[i], umidi->dev, |
4773d1fb CL |
1298 | pipe, buffer, length, |
1299 | snd_usbmidi_in_urb_complete, | |
1300 | ep, ep_info->in_interval); | |
1301 | else | |
d82af9f9 | 1302 | usb_fill_bulk_urb(ep->urbs[i], umidi->dev, |
4773d1fb CL |
1303 | pipe, buffer, length, |
1304 | snd_usbmidi_in_urb_complete, ep); | |
1305 | ep->urbs[i]->transfer_flags = URB_NO_TRANSFER_DMA_MAP; | |
738d9edc TI |
1306 | err = usb_urb_ep_type_check(ep->urbs[i]); |
1307 | if (err < 0) { | |
1308 | dev_err(&umidi->dev->dev, "invalid MIDI in EP %x\n", | |
1309 | ep_info->in_ep); | |
1310 | goto error; | |
1311 | } | |
1da177e4 | 1312 | } |
1da177e4 LT |
1313 | |
1314 | rep->in = ep; | |
1315 | return 0; | |
738d9edc TI |
1316 | |
1317 | error: | |
1318 | snd_usbmidi_in_endpoint_delete(ep); | |
cfd577ac | 1319 | return err; |
1da177e4 LT |
1320 | } |
1321 | ||
1da177e4 LT |
1322 | /* |
1323 | * Frees an output endpoint. | |
1324 | * May be called when ep hasn't been initialized completely. | |
1325 | */ | |
29aac005 | 1326 | static void snd_usbmidi_out_endpoint_clear(struct snd_usb_midi_out_endpoint *ep) |
1da177e4 | 1327 | { |
ed4affa5 CL |
1328 | unsigned int i; |
1329 | ||
1330 | for (i = 0; i < OUTPUT_URBS; ++i) | |
29aac005 | 1331 | if (ep->urbs[i].urb) { |
ed4affa5 CL |
1332 | free_urb_and_buffer(ep->umidi, ep->urbs[i].urb, |
1333 | ep->max_transfer); | |
29aac005 TI |
1334 | ep->urbs[i].urb = NULL; |
1335 | } | |
1336 | } | |
1337 | ||
1338 | static void snd_usbmidi_out_endpoint_delete(struct snd_usb_midi_out_endpoint *ep) | |
1339 | { | |
1340 | snd_usbmidi_out_endpoint_clear(ep); | |
1da177e4 LT |
1341 | kfree(ep); |
1342 | } | |
1343 | ||
1344 | /* | |
1345 | * Creates an output endpoint, and initializes output ports. | |
1346 | */ | |
a509574e AG |
1347 | static int snd_usbmidi_out_endpoint_create(struct snd_usb_midi *umidi, |
1348 | struct snd_usb_midi_endpoint_info *ep_info, | |
1349 | struct snd_usb_midi_endpoint *rep) | |
1da177e4 | 1350 | { |
a509574e | 1351 | struct snd_usb_midi_out_endpoint *ep; |
ed4affa5 | 1352 | unsigned int i; |
1da177e4 | 1353 | unsigned int pipe; |
a509574e | 1354 | void *buffer; |
738d9edc | 1355 | int err; |
1da177e4 LT |
1356 | |
1357 | rep->out = NULL; | |
561b220a | 1358 | ep = kzalloc(sizeof(*ep), GFP_KERNEL); |
1da177e4 LT |
1359 | if (!ep) |
1360 | return -ENOMEM; | |
1361 | ep->umidi = umidi; | |
1362 | ||
ed4affa5 CL |
1363 | for (i = 0; i < OUTPUT_URBS; ++i) { |
1364 | ep->urbs[i].urb = usb_alloc_urb(0, GFP_KERNEL); | |
1365 | if (!ep->urbs[i].urb) { | |
738d9edc TI |
1366 | err = -ENOMEM; |
1367 | goto error; | |
ed4affa5 CL |
1368 | } |
1369 | ep->urbs[i].ep = ep; | |
1da177e4 | 1370 | } |
a6a712ae | 1371 | if (ep_info->out_interval) |
d82af9f9 | 1372 | pipe = usb_sndintpipe(umidi->dev, ep_info->out_ep); |
a6a712ae | 1373 | else |
d82af9f9 | 1374 | pipe = usb_sndbulkpipe(umidi->dev, ep_info->out_ep); |
f167e1d0 CL |
1375 | switch (umidi->usb_id) { |
1376 | default: | |
d82af9f9 | 1377 | ep->max_transfer = usb_maxpacket(umidi->dev, pipe, 1); |
f167e1d0 CL |
1378 | break; |
1379 | /* | |
1380 | * Various chips declare a packet size larger than 4 bytes, but | |
1381 | * do not actually work with larger packets: | |
1382 | */ | |
98d362be | 1383 | case USB_ID(0x0a67, 0x5011): /* Medeli DD305 */ |
f167e1d0 CL |
1384 | case USB_ID(0x0a92, 0x1020): /* ESI M4U */ |
1385 | case USB_ID(0x1430, 0x474b): /* RedOctane GH MIDI INTERFACE */ | |
1386 | case USB_ID(0x15ca, 0x0101): /* Textech USB Midi Cable */ | |
1387 | case USB_ID(0x15ca, 0x1806): /* Textech USB Midi Cable */ | |
1388 | case USB_ID(0x1a86, 0x752d): /* QinHeng CH345 "USB2.0-MIDI" */ | |
49c039f0 | 1389 | case USB_ID(0xfc08, 0x0101): /* Unknown vendor Cable */ |
f167e1d0 CL |
1390 | ep->max_transfer = 4; |
1391 | break; | |
921eebdc KW |
1392 | /* |
1393 | * Some devices only work with 9 bytes packet size: | |
1394 | */ | |
8be03a71 TI |
1395 | case USB_ID(0x0644, 0x800e): /* Tascam US-122L */ |
1396 | case USB_ID(0x0644, 0x800f): /* Tascam US-144 */ | |
921eebdc KW |
1397 | ep->max_transfer = 9; |
1398 | break; | |
f167e1d0 | 1399 | } |
ed4affa5 | 1400 | for (i = 0; i < OUTPUT_URBS; ++i) { |
997ea58e DM |
1401 | buffer = usb_alloc_coherent(umidi->dev, |
1402 | ep->max_transfer, GFP_KERNEL, | |
1403 | &ep->urbs[i].urb->transfer_dma); | |
ed4affa5 | 1404 | if (!buffer) { |
738d9edc TI |
1405 | err = -ENOMEM; |
1406 | goto error; | |
ed4affa5 CL |
1407 | } |
1408 | if (ep_info->out_interval) | |
d82af9f9 | 1409 | usb_fill_int_urb(ep->urbs[i].urb, umidi->dev, |
ed4affa5 CL |
1410 | pipe, buffer, ep->max_transfer, |
1411 | snd_usbmidi_out_urb_complete, | |
1412 | &ep->urbs[i], ep_info->out_interval); | |
1413 | else | |
d82af9f9 | 1414 | usb_fill_bulk_urb(ep->urbs[i].urb, umidi->dev, |
ed4affa5 CL |
1415 | pipe, buffer, ep->max_transfer, |
1416 | snd_usbmidi_out_urb_complete, | |
1417 | &ep->urbs[i]); | |
738d9edc TI |
1418 | err = usb_urb_ep_type_check(ep->urbs[i].urb); |
1419 | if (err < 0) { | |
1420 | dev_err(&umidi->dev->dev, "invalid MIDI out EP %x\n", | |
1421 | ep_info->out_ep); | |
1422 | goto error; | |
1423 | } | |
ed4affa5 | 1424 | ep->urbs[i].urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP; |
1da177e4 | 1425 | } |
1da177e4 LT |
1426 | |
1427 | spin_lock_init(&ep->buffer_lock); | |
c7d9efdf | 1428 | INIT_WORK(&ep->work, snd_usbmidi_out_work); |
a65dd997 | 1429 | init_waitqueue_head(&ep->drain_wait); |
1da177e4 LT |
1430 | |
1431 | for (i = 0; i < 0x10; ++i) | |
1432 | if (ep_info->out_cables & (1 << i)) { | |
1433 | ep->ports[i].ep = ep; | |
1434 | ep->ports[i].cable = i << 4; | |
1435 | } | |
1436 | ||
1437 | if (umidi->usb_protocol_ops->init_out_endpoint) | |
1438 | umidi->usb_protocol_ops->init_out_endpoint(ep); | |
1439 | ||
1440 | rep->out = ep; | |
1441 | return 0; | |
738d9edc TI |
1442 | |
1443 | error: | |
1444 | snd_usbmidi_out_endpoint_delete(ep); | |
1445 | return err; | |
1da177e4 LT |
1446 | } |
1447 | ||
1448 | /* | |
1449 | * Frees everything. | |
1450 | */ | |
a509574e | 1451 | static void snd_usbmidi_free(struct snd_usb_midi *umidi) |
1da177e4 LT |
1452 | { |
1453 | int i; | |
1454 | ||
1455 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { | |
a509574e | 1456 | struct snd_usb_midi_endpoint *ep = &umidi->endpoints[i]; |
1da177e4 LT |
1457 | if (ep->out) |
1458 | snd_usbmidi_out_endpoint_delete(ep->out); | |
1459 | if (ep->in) | |
1460 | snd_usbmidi_in_endpoint_delete(ep->in); | |
1461 | } | |
96f61d9a | 1462 | mutex_destroy(&umidi->mutex); |
1da177e4 LT |
1463 | kfree(umidi); |
1464 | } | |
1465 | ||
1466 | /* | |
1467 | * Unlinks all URBs (must be done before the usb_device is deleted). | |
1468 | */ | |
a509574e | 1469 | void snd_usbmidi_disconnect(struct list_head *p) |
1da177e4 | 1470 | { |
a509574e | 1471 | struct snd_usb_midi *umidi; |
4773d1fb | 1472 | unsigned int i, j; |
1da177e4 | 1473 | |
86e07d34 | 1474 | umidi = list_entry(p, struct snd_usb_midi, list); |
c0792e00 TI |
1475 | /* |
1476 | * an URB's completion handler may start the timer and | |
1477 | * a timer may submit an URB. To reliably break the cycle | |
1478 | * a flag under lock must be used | |
1479 | */ | |
59866da9 | 1480 | down_write(&umidi->disc_rwsem); |
c0792e00 TI |
1481 | spin_lock_irq(&umidi->disc_lock); |
1482 | umidi->disconnected = 1; | |
1483 | spin_unlock_irq(&umidi->disc_lock); | |
59866da9 TI |
1484 | up_write(&umidi->disc_rwsem); |
1485 | ||
9b7e5208 TI |
1486 | del_timer_sync(&umidi->error_timer); |
1487 | ||
1da177e4 | 1488 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { |
a509574e | 1489 | struct snd_usb_midi_endpoint *ep = &umidi->endpoints[i]; |
c8846970 | 1490 | if (ep->out) |
c7d9efdf | 1491 | cancel_work_sync(&ep->out->work); |
ed4affa5 CL |
1492 | if (ep->out) { |
1493 | for (j = 0; j < OUTPUT_URBS; ++j) | |
1494 | usb_kill_urb(ep->out->urbs[j].urb); | |
1da177e4 LT |
1495 | if (umidi->usb_protocol_ops->finish_out_endpoint) |
1496 | umidi->usb_protocol_ops->finish_out_endpoint(ep->out); | |
29aac005 TI |
1497 | ep->out->active_urbs = 0; |
1498 | if (ep->out->drain_urbs) { | |
1499 | ep->out->drain_urbs = 0; | |
1500 | wake_up(&ep->out->drain_wait); | |
1501 | } | |
1da177e4 | 1502 | } |
f5e135af | 1503 | if (ep->in) |
4773d1fb CL |
1504 | for (j = 0; j < INPUT_URBS; ++j) |
1505 | usb_kill_urb(ep->in->urbs[j]); | |
7a17daae | 1506 | /* free endpoints here; later call can result in Oops */ |
29aac005 TI |
1507 | if (ep->out) |
1508 | snd_usbmidi_out_endpoint_clear(ep->out); | |
7a17daae TI |
1509 | if (ep->in) { |
1510 | snd_usbmidi_in_endpoint_delete(ep->in); | |
1511 | ep->in = NULL; | |
1512 | } | |
1da177e4 LT |
1513 | } |
1514 | } | |
ed136aca | 1515 | EXPORT_SYMBOL(snd_usbmidi_disconnect); |
1da177e4 | 1516 | |
86e07d34 | 1517 | static void snd_usbmidi_rawmidi_free(struct snd_rawmidi *rmidi) |
1da177e4 | 1518 | { |
a509574e | 1519 | struct snd_usb_midi *umidi = rmidi->private_data; |
1da177e4 LT |
1520 | snd_usbmidi_free(umidi); |
1521 | } | |
1522 | ||
a509574e AG |
1523 | static struct snd_rawmidi_substream *snd_usbmidi_find_substream(struct snd_usb_midi *umidi, |
1524 | int stream, | |
1525 | int number) | |
1da177e4 | 1526 | { |
88766f04 | 1527 | struct snd_rawmidi_substream *substream; |
1da177e4 | 1528 | |
a509574e AG |
1529 | list_for_each_entry(substream, &umidi->rmidi->streams[stream].substreams, |
1530 | list) { | |
1da177e4 LT |
1531 | if (substream->number == number) |
1532 | return substream; | |
1533 | } | |
1534 | return NULL; | |
1535 | } | |
1536 | ||
1537 | /* | |
1538 | * This list specifies names for ports that do not fit into the standard | |
1539 | * "(product) MIDI (n)" schema because they aren't external MIDI ports, | |
1540 | * such as internal control or synthesizer ports. | |
1541 | */ | |
a7b928ac | 1542 | static struct port_info { |
27d10f56 | 1543 | u32 id; |
a7b928ac CL |
1544 | short int port; |
1545 | short int voices; | |
1546 | const char *name; | |
1547 | unsigned int seq_flags; | |
1548 | } snd_usbmidi_port_info[] = { | |
1549 | #define PORT_INFO(vendor, product, num, name_, voices_, flags) \ | |
1550 | { .id = USB_ID(vendor, product), \ | |
1551 | .port = num, .voices = voices_, \ | |
1552 | .name = name_, .seq_flags = flags } | |
1553 | #define EXTERNAL_PORT(vendor, product, num, name) \ | |
1554 | PORT_INFO(vendor, product, num, name, 0, \ | |
1555 | SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | \ | |
1556 | SNDRV_SEQ_PORT_TYPE_HARDWARE | \ | |
1557 | SNDRV_SEQ_PORT_TYPE_PORT) | |
1558 | #define CONTROL_PORT(vendor, product, num, name) \ | |
1559 | PORT_INFO(vendor, product, num, name, 0, \ | |
1560 | SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | \ | |
1561 | SNDRV_SEQ_PORT_TYPE_HARDWARE) | |
49f4b4d1 CL |
1562 | #define GM_SYNTH_PORT(vendor, product, num, name, voices) \ |
1563 | PORT_INFO(vendor, product, num, name, voices, \ | |
1564 | SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | \ | |
1565 | SNDRV_SEQ_PORT_TYPE_MIDI_GM | \ | |
1566 | SNDRV_SEQ_PORT_TYPE_HARDWARE | \ | |
1567 | SNDRV_SEQ_PORT_TYPE_SYNTHESIZER) | |
a7b928ac CL |
1568 | #define ROLAND_SYNTH_PORT(vendor, product, num, name, voices) \ |
1569 | PORT_INFO(vendor, product, num, name, voices, \ | |
1570 | SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | \ | |
1571 | SNDRV_SEQ_PORT_TYPE_MIDI_GM | \ | |
1572 | SNDRV_SEQ_PORT_TYPE_MIDI_GM2 | \ | |
1573 | SNDRV_SEQ_PORT_TYPE_MIDI_GS | \ | |
1574 | SNDRV_SEQ_PORT_TYPE_MIDI_XG | \ | |
1575 | SNDRV_SEQ_PORT_TYPE_HARDWARE | \ | |
1576 | SNDRV_SEQ_PORT_TYPE_SYNTHESIZER) | |
1577 | #define SOUNDCANVAS_PORT(vendor, product, num, name, voices) \ | |
1578 | PORT_INFO(vendor, product, num, name, voices, \ | |
1579 | SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | \ | |
1580 | SNDRV_SEQ_PORT_TYPE_MIDI_GM | \ | |
1581 | SNDRV_SEQ_PORT_TYPE_MIDI_GM2 | \ | |
1582 | SNDRV_SEQ_PORT_TYPE_MIDI_GS | \ | |
1583 | SNDRV_SEQ_PORT_TYPE_MIDI_XG | \ | |
1584 | SNDRV_SEQ_PORT_TYPE_MIDI_MT32 | \ | |
1585 | SNDRV_SEQ_PORT_TYPE_HARDWARE | \ | |
1586 | SNDRV_SEQ_PORT_TYPE_SYNTHESIZER) | |
49f4b4d1 CL |
1587 | /* Yamaha MOTIF XF */ |
1588 | GM_SYNTH_PORT(0x0499, 0x105c, 0, "%s Tone Generator", 128), | |
1589 | CONTROL_PORT(0x0499, 0x105c, 1, "%s Remote Control"), | |
1590 | EXTERNAL_PORT(0x0499, 0x105c, 2, "%s Thru"), | |
1591 | CONTROL_PORT(0x0499, 0x105c, 3, "%s Editor"), | |
1da177e4 | 1592 | /* Roland UA-100 */ |
a7b928ac | 1593 | CONTROL_PORT(0x0582, 0x0000, 2, "%s Control"), |
1da177e4 | 1594 | /* Roland SC-8850 */ |
a7b928ac CL |
1595 | SOUNDCANVAS_PORT(0x0582, 0x0003, 0, "%s Part A", 128), |
1596 | SOUNDCANVAS_PORT(0x0582, 0x0003, 1, "%s Part B", 128), | |
1597 | SOUNDCANVAS_PORT(0x0582, 0x0003, 2, "%s Part C", 128), | |
1598 | SOUNDCANVAS_PORT(0x0582, 0x0003, 3, "%s Part D", 128), | |
1599 | EXTERNAL_PORT(0x0582, 0x0003, 4, "%s MIDI 1"), | |
1600 | EXTERNAL_PORT(0x0582, 0x0003, 5, "%s MIDI 2"), | |
1da177e4 | 1601 | /* Roland U-8 */ |
a7b928ac CL |
1602 | EXTERNAL_PORT(0x0582, 0x0004, 0, "%s MIDI"), |
1603 | CONTROL_PORT(0x0582, 0x0004, 1, "%s Control"), | |
1da177e4 | 1604 | /* Roland SC-8820 */ |
a7b928ac CL |
1605 | SOUNDCANVAS_PORT(0x0582, 0x0007, 0, "%s Part A", 64), |
1606 | SOUNDCANVAS_PORT(0x0582, 0x0007, 1, "%s Part B", 64), | |
1607 | EXTERNAL_PORT(0x0582, 0x0007, 2, "%s MIDI"), | |
1da177e4 | 1608 | /* Roland SK-500 */ |
a7b928ac CL |
1609 | SOUNDCANVAS_PORT(0x0582, 0x000b, 0, "%s Part A", 64), |
1610 | SOUNDCANVAS_PORT(0x0582, 0x000b, 1, "%s Part B", 64), | |
1611 | EXTERNAL_PORT(0x0582, 0x000b, 2, "%s MIDI"), | |
1da177e4 | 1612 | /* Roland SC-D70 */ |
a7b928ac CL |
1613 | SOUNDCANVAS_PORT(0x0582, 0x000c, 0, "%s Part A", 64), |
1614 | SOUNDCANVAS_PORT(0x0582, 0x000c, 1, "%s Part B", 64), | |
1615 | EXTERNAL_PORT(0x0582, 0x000c, 2, "%s MIDI"), | |
1da177e4 | 1616 | /* Edirol UM-880 */ |
a7b928ac | 1617 | CONTROL_PORT(0x0582, 0x0014, 8, "%s Control"), |
1da177e4 | 1618 | /* Edirol SD-90 */ |
a7b928ac CL |
1619 | ROLAND_SYNTH_PORT(0x0582, 0x0016, 0, "%s Part A", 128), |
1620 | ROLAND_SYNTH_PORT(0x0582, 0x0016, 1, "%s Part B", 128), | |
1621 | EXTERNAL_PORT(0x0582, 0x0016, 2, "%s MIDI 1"), | |
1622 | EXTERNAL_PORT(0x0582, 0x0016, 3, "%s MIDI 2"), | |
1da177e4 | 1623 | /* Edirol UM-550 */ |
a7b928ac | 1624 | CONTROL_PORT(0x0582, 0x0023, 5, "%s Control"), |
1da177e4 | 1625 | /* Edirol SD-20 */ |
a7b928ac CL |
1626 | ROLAND_SYNTH_PORT(0x0582, 0x0027, 0, "%s Part A", 64), |
1627 | ROLAND_SYNTH_PORT(0x0582, 0x0027, 1, "%s Part B", 64), | |
1628 | EXTERNAL_PORT(0x0582, 0x0027, 2, "%s MIDI"), | |
1da177e4 | 1629 | /* Edirol SD-80 */ |
a7b928ac CL |
1630 | ROLAND_SYNTH_PORT(0x0582, 0x0029, 0, "%s Part A", 128), |
1631 | ROLAND_SYNTH_PORT(0x0582, 0x0029, 1, "%s Part B", 128), | |
1632 | EXTERNAL_PORT(0x0582, 0x0029, 2, "%s MIDI 1"), | |
1633 | EXTERNAL_PORT(0x0582, 0x0029, 3, "%s MIDI 2"), | |
1da177e4 | 1634 | /* Edirol UA-700 */ |
a7b928ac CL |
1635 | EXTERNAL_PORT(0x0582, 0x002b, 0, "%s MIDI"), |
1636 | CONTROL_PORT(0x0582, 0x002b, 1, "%s Control"), | |
1da177e4 | 1637 | /* Roland VariOS */ |
a7b928ac CL |
1638 | EXTERNAL_PORT(0x0582, 0x002f, 0, "%s MIDI"), |
1639 | EXTERNAL_PORT(0x0582, 0x002f, 1, "%s External MIDI"), | |
1640 | EXTERNAL_PORT(0x0582, 0x002f, 2, "%s Sync"), | |
1da177e4 | 1641 | /* Edirol PCR */ |
a7b928ac CL |
1642 | EXTERNAL_PORT(0x0582, 0x0033, 0, "%s MIDI"), |
1643 | EXTERNAL_PORT(0x0582, 0x0033, 1, "%s 1"), | |
1644 | EXTERNAL_PORT(0x0582, 0x0033, 2, "%s 2"), | |
1da177e4 | 1645 | /* BOSS GS-10 */ |
a7b928ac CL |
1646 | EXTERNAL_PORT(0x0582, 0x003b, 0, "%s MIDI"), |
1647 | CONTROL_PORT(0x0582, 0x003b, 1, "%s Control"), | |
1da177e4 | 1648 | /* Edirol UA-1000 */ |
a7b928ac CL |
1649 | EXTERNAL_PORT(0x0582, 0x0044, 0, "%s MIDI"), |
1650 | CONTROL_PORT(0x0582, 0x0044, 1, "%s Control"), | |
1da177e4 | 1651 | /* Edirol UR-80 */ |
a7b928ac CL |
1652 | EXTERNAL_PORT(0x0582, 0x0048, 0, "%s MIDI"), |
1653 | EXTERNAL_PORT(0x0582, 0x0048, 1, "%s 1"), | |
1654 | EXTERNAL_PORT(0x0582, 0x0048, 2, "%s 2"), | |
1da177e4 | 1655 | /* Edirol PCR-A */ |
a7b928ac CL |
1656 | EXTERNAL_PORT(0x0582, 0x004d, 0, "%s MIDI"), |
1657 | EXTERNAL_PORT(0x0582, 0x004d, 1, "%s 1"), | |
1658 | EXTERNAL_PORT(0x0582, 0x004d, 2, "%s 2"), | |
a968782e CL |
1659 | /* BOSS GT-PRO */ |
1660 | CONTROL_PORT(0x0582, 0x0089, 0, "%s Control"), | |
7c79b768 | 1661 | /* Edirol UM-3EX */ |
a7b928ac | 1662 | CONTROL_PORT(0x0582, 0x009a, 3, "%s Control"), |
a968782e CL |
1663 | /* Roland VG-99 */ |
1664 | CONTROL_PORT(0x0582, 0x00b2, 0, "%s Control"), | |
1665 | EXTERNAL_PORT(0x0582, 0x00b2, 1, "%s MIDI"), | |
1666 | /* Cakewalk Sonar V-Studio 100 */ | |
1667 | EXTERNAL_PORT(0x0582, 0x00eb, 0, "%s MIDI"), | |
1668 | CONTROL_PORT(0x0582, 0x00eb, 1, "%s Control"), | |
1669 | /* Roland VB-99 */ | |
1670 | CONTROL_PORT(0x0582, 0x0102, 0, "%s Control"), | |
1671 | EXTERNAL_PORT(0x0582, 0x0102, 1, "%s MIDI"), | |
1672 | /* Roland A-PRO */ | |
1673 | EXTERNAL_PORT(0x0582, 0x010f, 0, "%s MIDI"), | |
1674 | CONTROL_PORT(0x0582, 0x010f, 1, "%s 1"), | |
1675 | CONTROL_PORT(0x0582, 0x010f, 2, "%s 2"), | |
1676 | /* Roland SD-50 */ | |
1677 | ROLAND_SYNTH_PORT(0x0582, 0x0114, 0, "%s Synth", 128), | |
1678 | EXTERNAL_PORT(0x0582, 0x0114, 1, "%s MIDI"), | |
1679 | CONTROL_PORT(0x0582, 0x0114, 2, "%s Control"), | |
1680 | /* Roland OCTA-CAPTURE */ | |
1681 | EXTERNAL_PORT(0x0582, 0x0120, 0, "%s MIDI"), | |
1682 | CONTROL_PORT(0x0582, 0x0120, 1, "%s Control"), | |
1683 | EXTERNAL_PORT(0x0582, 0x0121, 0, "%s MIDI"), | |
1684 | CONTROL_PORT(0x0582, 0x0121, 1, "%s Control"), | |
1685 | /* Roland SPD-SX */ | |
1686 | CONTROL_PORT(0x0582, 0x0145, 0, "%s Control"), | |
1687 | EXTERNAL_PORT(0x0582, 0x0145, 1, "%s MIDI"), | |
1688 | /* Roland A-Series */ | |
1689 | CONTROL_PORT(0x0582, 0x0156, 0, "%s Keyboard"), | |
1690 | EXTERNAL_PORT(0x0582, 0x0156, 1, "%s MIDI"), | |
1691 | /* Roland INTEGRA-7 */ | |
1692 | ROLAND_SYNTH_PORT(0x0582, 0x015b, 0, "%s Synth", 128), | |
1693 | CONTROL_PORT(0x0582, 0x015b, 1, "%s Control"), | |
1da177e4 | 1694 | /* M-Audio MidiSport 8x8 */ |
a7b928ac CL |
1695 | CONTROL_PORT(0x0763, 0x1031, 8, "%s Control"), |
1696 | CONTROL_PORT(0x0763, 0x1033, 8, "%s Control"), | |
1da177e4 | 1697 | /* MOTU Fastlane */ |
a7b928ac CL |
1698 | EXTERNAL_PORT(0x07fd, 0x0001, 0, "%s MIDI A"), |
1699 | EXTERNAL_PORT(0x07fd, 0x0001, 1, "%s MIDI B"), | |
1da177e4 | 1700 | /* Emagic Unitor8/AMT8/MT4 */ |
a7b928ac CL |
1701 | EXTERNAL_PORT(0x086a, 0x0001, 8, "%s Broadcast"), |
1702 | EXTERNAL_PORT(0x086a, 0x0002, 8, "%s Broadcast"), | |
1703 | EXTERNAL_PORT(0x086a, 0x0003, 4, "%s Broadcast"), | |
4434ade8 KF |
1704 | /* Akai MPD16 */ |
1705 | CONTROL_PORT(0x09e8, 0x0062, 0, "%s Control"), | |
1706 | PORT_INFO(0x09e8, 0x0062, 1, "%s MIDI", 0, | |
1707 | SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | | |
1708 | SNDRV_SEQ_PORT_TYPE_HARDWARE), | |
d39e82db SA |
1709 | /* Access Music Virus TI */ |
1710 | EXTERNAL_PORT(0x133e, 0x0815, 0, "%s MIDI"), | |
1711 | PORT_INFO(0x133e, 0x0815, 1, "%s Synth", 0, | |
1712 | SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | | |
1713 | SNDRV_SEQ_PORT_TYPE_HARDWARE | | |
1714 | SNDRV_SEQ_PORT_TYPE_SYNTHESIZER), | |
1da177e4 LT |
1715 | }; |
1716 | ||
a509574e | 1717 | static struct port_info *find_port_info(struct snd_usb_midi *umidi, int number) |
a7b928ac CL |
1718 | { |
1719 | int i; | |
1720 | ||
1721 | for (i = 0; i < ARRAY_SIZE(snd_usbmidi_port_info); ++i) { | |
d82af9f9 | 1722 | if (snd_usbmidi_port_info[i].id == umidi->usb_id && |
a7b928ac CL |
1723 | snd_usbmidi_port_info[i].port == number) |
1724 | return &snd_usbmidi_port_info[i]; | |
1725 | } | |
1726 | return NULL; | |
1727 | } | |
1728 | ||
1729 | static void snd_usbmidi_get_port_info(struct snd_rawmidi *rmidi, int number, | |
1730 | struct snd_seq_port_info *seq_port_info) | |
1731 | { | |
1732 | struct snd_usb_midi *umidi = rmidi->private_data; | |
1733 | struct port_info *port_info; | |
1734 | ||
1735 | /* TODO: read port flags from descriptors */ | |
1736 | port_info = find_port_info(umidi, number); | |
1737 | if (port_info) { | |
1738 | seq_port_info->type = port_info->seq_flags; | |
1739 | seq_port_info->midi_voices = port_info->voices; | |
1740 | } | |
1741 | } | |
1742 | ||
eb596e0f GH |
1743 | static struct usb_midi_in_jack_descriptor *find_usb_in_jack_descriptor( |
1744 | struct usb_host_interface *hostif, uint8_t jack_id) | |
1745 | { | |
1746 | unsigned char *extra = hostif->extra; | |
1747 | int extralen = hostif->extralen; | |
1748 | ||
1749 | while (extralen > 4) { | |
1750 | struct usb_midi_in_jack_descriptor *injd = | |
1751 | (struct usb_midi_in_jack_descriptor *)extra; | |
1752 | ||
1753 | if (injd->bLength > 4 && | |
1754 | injd->bDescriptorType == USB_DT_CS_INTERFACE && | |
1755 | injd->bDescriptorSubtype == UAC_MIDI_IN_JACK && | |
1756 | injd->bJackID == jack_id) | |
1757 | return injd; | |
1758 | if (!extra[0]) | |
1759 | break; | |
1760 | extralen -= extra[0]; | |
1761 | extra += extra[0]; | |
1762 | } | |
1763 | return NULL; | |
1764 | } | |
1765 | ||
1766 | static struct usb_midi_out_jack_descriptor *find_usb_out_jack_descriptor( | |
1767 | struct usb_host_interface *hostif, uint8_t jack_id) | |
1768 | { | |
1769 | unsigned char *extra = hostif->extra; | |
1770 | int extralen = hostif->extralen; | |
1771 | ||
1772 | while (extralen > 4) { | |
1773 | struct usb_midi_out_jack_descriptor *outjd = | |
1774 | (struct usb_midi_out_jack_descriptor *)extra; | |
1775 | ||
1776 | if (outjd->bLength > 4 && | |
1777 | outjd->bDescriptorType == USB_DT_CS_INTERFACE && | |
1778 | outjd->bDescriptorSubtype == UAC_MIDI_OUT_JACK && | |
1779 | outjd->bJackID == jack_id) | |
1780 | return outjd; | |
1781 | if (!extra[0]) | |
1782 | break; | |
1783 | extralen -= extra[0]; | |
1784 | extra += extra[0]; | |
1785 | } | |
1786 | return NULL; | |
1787 | } | |
1788 | ||
a509574e | 1789 | static void snd_usbmidi_init_substream(struct snd_usb_midi *umidi, |
eb596e0f | 1790 | int stream, int number, int jack_id, |
a509574e | 1791 | struct snd_rawmidi_substream **rsubstream) |
1da177e4 | 1792 | { |
a7b928ac | 1793 | struct port_info *port_info; |
1da177e4 | 1794 | const char *name_format; |
eb596e0f GH |
1795 | struct usb_interface *intf; |
1796 | struct usb_host_interface *hostif; | |
1797 | struct usb_midi_in_jack_descriptor *injd; | |
1798 | struct usb_midi_out_jack_descriptor *outjd; | |
1799 | uint8_t jack_name_buf[32]; | |
1800 | uint8_t *default_jack_name = "MIDI"; | |
1801 | uint8_t *jack_name = default_jack_name; | |
1802 | uint8_t iJack; | |
1803 | size_t sz; | |
1804 | int res; | |
1da177e4 | 1805 | |
a509574e AG |
1806 | struct snd_rawmidi_substream *substream = |
1807 | snd_usbmidi_find_substream(umidi, stream, number); | |
1da177e4 | 1808 | if (!substream) { |
a509574e AG |
1809 | dev_err(&umidi->dev->dev, "substream %d:%d not found\n", stream, |
1810 | number); | |
1da177e4 LT |
1811 | return; |
1812 | } | |
1813 | ||
eb596e0f GH |
1814 | intf = umidi->iface; |
1815 | if (intf && jack_id >= 0) { | |
1816 | hostif = intf->cur_altsetting; | |
1817 | iJack = 0; | |
1818 | if (stream != SNDRV_RAWMIDI_STREAM_OUTPUT) { | |
1819 | /* in jacks connect to outs */ | |
1820 | outjd = find_usb_out_jack_descriptor(hostif, jack_id); | |
1821 | if (outjd) { | |
1822 | sz = USB_DT_MIDI_OUT_SIZE(outjd->bNrInputPins); | |
1823 | iJack = *(((uint8_t *) outjd) + sz - sizeof(uint8_t)); | |
1824 | } | |
1825 | } else { | |
1826 | /* and out jacks connect to ins */ | |
1827 | injd = find_usb_in_jack_descriptor(hostif, jack_id); | |
1828 | if (injd) | |
1829 | iJack = injd->iJack; | |
1830 | } | |
1831 | if (iJack != 0) { | |
1832 | res = usb_string(umidi->dev, iJack, jack_name_buf, | |
1833 | ARRAY_SIZE(jack_name_buf)); | |
1834 | if (res) | |
1835 | jack_name = jack_name_buf; | |
1836 | } | |
1837 | } | |
1838 | ||
a7b928ac | 1839 | port_info = find_port_info(umidi, number); |
eb596e0f GH |
1840 | name_format = port_info ? port_info->name : |
1841 | (jack_name != default_jack_name ? "%s %s" : "%s %s %d"); | |
1da177e4 | 1842 | snprintf(substream->name, sizeof(substream->name), |
eb596e0f | 1843 | name_format, umidi->card->shortname, jack_name, number + 1); |
1da177e4 LT |
1844 | |
1845 | *rsubstream = substream; | |
1846 | } | |
1847 | ||
1848 | /* | |
1849 | * Creates the endpoints and their ports. | |
1850 | */ | |
a509574e AG |
1851 | static int snd_usbmidi_create_endpoints(struct snd_usb_midi *umidi, |
1852 | struct snd_usb_midi_endpoint_info *endpoints) | |
1da177e4 LT |
1853 | { |
1854 | int i, j, err; | |
1855 | int out_ports = 0, in_ports = 0; | |
1856 | ||
1857 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { | |
1858 | if (endpoints[i].out_cables) { | |
a509574e AG |
1859 | err = snd_usbmidi_out_endpoint_create(umidi, |
1860 | &endpoints[i], | |
1da177e4 LT |
1861 | &umidi->endpoints[i]); |
1862 | if (err < 0) | |
1863 | return err; | |
1864 | } | |
1865 | if (endpoints[i].in_cables) { | |
a509574e AG |
1866 | err = snd_usbmidi_in_endpoint_create(umidi, |
1867 | &endpoints[i], | |
1da177e4 LT |
1868 | &umidi->endpoints[i]); |
1869 | if (err < 0) | |
1870 | return err; | |
1871 | } | |
1872 | ||
1873 | for (j = 0; j < 0x10; ++j) { | |
1874 | if (endpoints[i].out_cables & (1 << j)) { | |
a509574e AG |
1875 | snd_usbmidi_init_substream(umidi, |
1876 | SNDRV_RAWMIDI_STREAM_OUTPUT, | |
1877 | out_ports, | |
eb596e0f | 1878 | endpoints[i].assoc_out_jacks[j], |
1da177e4 LT |
1879 | &umidi->endpoints[i].out->ports[j].substream); |
1880 | ++out_ports; | |
1881 | } | |
1882 | if (endpoints[i].in_cables & (1 << j)) { | |
a509574e AG |
1883 | snd_usbmidi_init_substream(umidi, |
1884 | SNDRV_RAWMIDI_STREAM_INPUT, | |
1885 | in_ports, | |
eb596e0f | 1886 | endpoints[i].assoc_in_jacks[j], |
1da177e4 LT |
1887 | &umidi->endpoints[i].in->ports[j].substream); |
1888 | ++in_ports; | |
1889 | } | |
1890 | } | |
1891 | } | |
0ba41d91 | 1892 | dev_dbg(&umidi->dev->dev, "created %d output and %d input ports\n", |
1da177e4 LT |
1893 | out_ports, in_ports); |
1894 | return 0; | |
1895 | } | |
1896 | ||
5c6cd702 AS |
1897 | static struct usb_ms_endpoint_descriptor *find_usb_ms_endpoint_descriptor( |
1898 | struct usb_host_endpoint *hostep) | |
1899 | { | |
1900 | unsigned char *extra = hostep->extra; | |
1901 | int extralen = hostep->extralen; | |
1902 | ||
1903 | while (extralen > 3) { | |
1904 | struct usb_ms_endpoint_descriptor *ms_ep = | |
1905 | (struct usb_ms_endpoint_descriptor *)extra; | |
1906 | ||
1907 | if (ms_ep->bLength > 3 && | |
1908 | ms_ep->bDescriptorType == USB_DT_CS_ENDPOINT && | |
1909 | ms_ep->bDescriptorSubtype == UAC_MS_GENERAL) | |
1910 | return ms_ep; | |
1911 | if (!extra[0]) | |
1912 | break; | |
1913 | extralen -= extra[0]; | |
1914 | extra += extra[0]; | |
1915 | } | |
1916 | return NULL; | |
1917 | } | |
1918 | ||
1da177e4 LT |
1919 | /* |
1920 | * Returns MIDIStreaming device capabilities. | |
1921 | */ | |
a509574e AG |
1922 | static int snd_usbmidi_get_ms_info(struct snd_usb_midi *umidi, |
1923 | struct snd_usb_midi_endpoint_info *endpoints) | |
1da177e4 | 1924 | { |
a509574e | 1925 | struct usb_interface *intf; |
1da177e4 | 1926 | struct usb_host_interface *hostif; |
a509574e AG |
1927 | struct usb_interface_descriptor *intfd; |
1928 | struct usb_ms_header_descriptor *ms_header; | |
1da177e4 | 1929 | struct usb_host_endpoint *hostep; |
a509574e AG |
1930 | struct usb_endpoint_descriptor *ep; |
1931 | struct usb_ms_endpoint_descriptor *ms_ep; | |
eb596e0f | 1932 | int i, j, epidx; |
1da177e4 LT |
1933 | |
1934 | intf = umidi->iface; | |
1935 | if (!intf) | |
1936 | return -ENXIO; | |
1937 | hostif = &intf->altsetting[0]; | |
1938 | intfd = get_iface_desc(hostif); | |
a509574e | 1939 | ms_header = (struct usb_ms_header_descriptor *)hostif->extra; |
1da177e4 LT |
1940 | if (hostif->extralen >= 7 && |
1941 | ms_header->bLength >= 7 && | |
1942 | ms_header->bDescriptorType == USB_DT_CS_INTERFACE && | |
de48c7bc | 1943 | ms_header->bDescriptorSubtype == UAC_HEADER) |
0ba41d91 | 1944 | dev_dbg(&umidi->dev->dev, "MIDIStreaming version %02x.%02x\n", |
d6e68c57 | 1945 | ((uint8_t *)&ms_header->bcdMSC)[1], ((uint8_t *)&ms_header->bcdMSC)[0]); |
1da177e4 | 1946 | else |
0ba41d91 TI |
1947 | dev_warn(&umidi->dev->dev, |
1948 | "MIDIStreaming interface descriptor not found\n"); | |
1da177e4 LT |
1949 | |
1950 | epidx = 0; | |
1951 | for (i = 0; i < intfd->bNumEndpoints; ++i) { | |
1952 | hostep = &hostif->endpoint[i]; | |
1953 | ep = get_ep_desc(hostep); | |
913ae5a2 | 1954 | if (!usb_endpoint_xfer_bulk(ep) && !usb_endpoint_xfer_int(ep)) |
1da177e4 | 1955 | continue; |
5c6cd702 AS |
1956 | ms_ep = find_usb_ms_endpoint_descriptor(hostep); |
1957 | if (!ms_ep) | |
1da177e4 | 1958 | continue; |
e84749a7 TI |
1959 | if (ms_ep->bLength <= sizeof(*ms_ep)) |
1960 | continue; | |
c06ccf3e TI |
1961 | if (ms_ep->bNumEmbMIDIJack > 0x10) |
1962 | continue; | |
e84749a7 TI |
1963 | if (ms_ep->bLength < sizeof(*ms_ep) + ms_ep->bNumEmbMIDIJack) |
1964 | continue; | |
42a6e66f | 1965 | if (usb_endpoint_dir_out(ep)) { |
1da177e4 LT |
1966 | if (endpoints[epidx].out_ep) { |
1967 | if (++epidx >= MIDI_MAX_ENDPOINTS) { | |
0ba41d91 TI |
1968 | dev_warn(&umidi->dev->dev, |
1969 | "too many endpoints\n"); | |
1da177e4 LT |
1970 | break; |
1971 | } | |
1972 | } | |
42a6e66f JL |
1973 | endpoints[epidx].out_ep = usb_endpoint_num(ep); |
1974 | if (usb_endpoint_xfer_int(ep)) | |
1da177e4 | 1975 | endpoints[epidx].out_interval = ep->bInterval; |
d82af9f9 | 1976 | else if (snd_usb_get_speed(umidi->dev) == USB_SPEED_LOW) |
56162aab CL |
1977 | /* |
1978 | * Low speed bulk transfers don't exist, so | |
1979 | * force interrupt transfers for devices like | |
1980 | * ESI MIDI Mate that try to use them anyway. | |
1981 | */ | |
1982 | endpoints[epidx].out_interval = 1; | |
a509574e AG |
1983 | endpoints[epidx].out_cables = |
1984 | (1 << ms_ep->bNumEmbMIDIJack) - 1; | |
eb596e0f GH |
1985 | for (j = 0; j < ms_ep->bNumEmbMIDIJack; ++j) |
1986 | endpoints[epidx].assoc_out_jacks[j] = ms_ep->baAssocJackID[j]; | |
1987 | for (; j < ARRAY_SIZE(endpoints[epidx].assoc_out_jacks); ++j) | |
1988 | endpoints[epidx].assoc_out_jacks[j] = -1; | |
0ba41d91 | 1989 | dev_dbg(&umidi->dev->dev, "EP %02X: %d jack(s)\n", |
a509574e | 1990 | ep->bEndpointAddress, ms_ep->bNumEmbMIDIJack); |
1da177e4 LT |
1991 | } else { |
1992 | if (endpoints[epidx].in_ep) { | |
1993 | if (++epidx >= MIDI_MAX_ENDPOINTS) { | |
0ba41d91 TI |
1994 | dev_warn(&umidi->dev->dev, |
1995 | "too many endpoints\n"); | |
1da177e4 LT |
1996 | break; |
1997 | } | |
1998 | } | |
42a6e66f JL |
1999 | endpoints[epidx].in_ep = usb_endpoint_num(ep); |
2000 | if (usb_endpoint_xfer_int(ep)) | |
1da177e4 | 2001 | endpoints[epidx].in_interval = ep->bInterval; |
d82af9f9 | 2002 | else if (snd_usb_get_speed(umidi->dev) == USB_SPEED_LOW) |
56162aab | 2003 | endpoints[epidx].in_interval = 1; |
a509574e AG |
2004 | endpoints[epidx].in_cables = |
2005 | (1 << ms_ep->bNumEmbMIDIJack) - 1; | |
eb596e0f GH |
2006 | for (j = 0; j < ms_ep->bNumEmbMIDIJack; ++j) |
2007 | endpoints[epidx].assoc_in_jacks[j] = ms_ep->baAssocJackID[j]; | |
2008 | for (; j < ARRAY_SIZE(endpoints[epidx].assoc_in_jacks); ++j) | |
2009 | endpoints[epidx].assoc_in_jacks[j] = -1; | |
0ba41d91 | 2010 | dev_dbg(&umidi->dev->dev, "EP %02X: %d jack(s)\n", |
a509574e | 2011 | ep->bEndpointAddress, ms_ep->bNumEmbMIDIJack); |
1da177e4 LT |
2012 | } |
2013 | } | |
2014 | return 0; | |
2015 | } | |
2016 | ||
96f61d9a CL |
2017 | static int roland_load_info(struct snd_kcontrol *kcontrol, |
2018 | struct snd_ctl_elem_info *info) | |
2019 | { | |
2020 | static const char *const names[] = { "High Load", "Light Load" }; | |
2021 | ||
2a1803a7 | 2022 | return snd_ctl_enum_info(info, 1, 2, names); |
96f61d9a CL |
2023 | } |
2024 | ||
2025 | static int roland_load_get(struct snd_kcontrol *kcontrol, | |
2026 | struct snd_ctl_elem_value *value) | |
2027 | { | |
2028 | value->value.enumerated.item[0] = kcontrol->private_value; | |
2029 | return 0; | |
2030 | } | |
2031 | ||
2032 | static int roland_load_put(struct snd_kcontrol *kcontrol, | |
2033 | struct snd_ctl_elem_value *value) | |
2034 | { | |
a509574e | 2035 | struct snd_usb_midi *umidi = kcontrol->private_data; |
96f61d9a CL |
2036 | int changed; |
2037 | ||
2038 | if (value->value.enumerated.item[0] > 1) | |
2039 | return -EINVAL; | |
2040 | mutex_lock(&umidi->mutex); | |
2041 | changed = value->value.enumerated.item[0] != kcontrol->private_value; | |
2042 | if (changed) | |
2043 | kcontrol->private_value = value->value.enumerated.item[0]; | |
2044 | mutex_unlock(&umidi->mutex); | |
2045 | return changed; | |
2046 | } | |
2047 | ||
8fdaebbb | 2048 | static const struct snd_kcontrol_new roland_load_ctl = { |
96f61d9a CL |
2049 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
2050 | .name = "MIDI Input Mode", | |
2051 | .info = roland_load_info, | |
2052 | .get = roland_load_get, | |
2053 | .put = roland_load_put, | |
2054 | .private_value = 1, | |
2055 | }; | |
2056 | ||
1da177e4 LT |
2057 | /* |
2058 | * On Roland devices, use the second alternate setting to be able to use | |
2059 | * the interrupt input endpoint. | |
2060 | */ | |
a509574e | 2061 | static void snd_usbmidi_switch_roland_altsetting(struct snd_usb_midi *umidi) |
1da177e4 | 2062 | { |
a509574e | 2063 | struct usb_interface *intf; |
1da177e4 | 2064 | struct usb_host_interface *hostif; |
a509574e | 2065 | struct usb_interface_descriptor *intfd; |
1da177e4 LT |
2066 | |
2067 | intf = umidi->iface; | |
2068 | if (!intf || intf->num_altsetting != 2) | |
2069 | return; | |
2070 | ||
2071 | hostif = &intf->altsetting[1]; | |
2072 | intfd = get_iface_desc(hostif); | |
ac774236 KM |
2073 | /* If either or both of the endpoints support interrupt transfer, |
2074 | * then use the alternate setting | |
2075 | */ | |
1da177e4 | 2076 | if (intfd->bNumEndpoints != 2 || |
ac774236 KM |
2077 | !((get_endpoint(hostif, 0)->bmAttributes & |
2078 | USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT || | |
2079 | (get_endpoint(hostif, 1)->bmAttributes & | |
2080 | USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT)) | |
1da177e4 LT |
2081 | return; |
2082 | ||
0ba41d91 | 2083 | dev_dbg(&umidi->dev->dev, "switching to altsetting %d with int ep\n", |
1da177e4 | 2084 | intfd->bAlternateSetting); |
d82af9f9 | 2085 | usb_set_interface(umidi->dev, intfd->bInterfaceNumber, |
1da177e4 | 2086 | intfd->bAlternateSetting); |
96f61d9a CL |
2087 | |
2088 | umidi->roland_load_ctl = snd_ctl_new1(&roland_load_ctl, umidi); | |
d82af9f9 | 2089 | if (snd_ctl_add(umidi->card, umidi->roland_load_ctl) < 0) |
96f61d9a | 2090 | umidi->roland_load_ctl = NULL; |
1da177e4 LT |
2091 | } |
2092 | ||
2093 | /* | |
2094 | * Try to find any usable endpoints in the interface. | |
2095 | */ | |
a509574e AG |
2096 | static int snd_usbmidi_detect_endpoints(struct snd_usb_midi *umidi, |
2097 | struct snd_usb_midi_endpoint_info *endpoint, | |
1da177e4 LT |
2098 | int max_endpoints) |
2099 | { | |
a509574e | 2100 | struct usb_interface *intf; |
1da177e4 | 2101 | struct usb_host_interface *hostif; |
a509574e AG |
2102 | struct usb_interface_descriptor *intfd; |
2103 | struct usb_endpoint_descriptor *epd; | |
1da177e4 LT |
2104 | int i, out_eps = 0, in_eps = 0; |
2105 | ||
d82af9f9 | 2106 | if (USB_ID_VENDOR(umidi->usb_id) == 0x0582) |
1da177e4 LT |
2107 | snd_usbmidi_switch_roland_altsetting(umidi); |
2108 | ||
c1ab5d59 | 2109 | if (endpoint[0].out_ep || endpoint[0].in_ep) |
21af7d8c | 2110 | return 0; |
c1ab5d59 | 2111 | |
1da177e4 LT |
2112 | intf = umidi->iface; |
2113 | if (!intf || intf->num_altsetting < 1) | |
2114 | return -ENOENT; | |
2115 | hostif = intf->cur_altsetting; | |
2116 | intfd = get_iface_desc(hostif); | |
2117 | ||
2118 | for (i = 0; i < intfd->bNumEndpoints; ++i) { | |
2119 | epd = get_endpoint(hostif, i); | |
913ae5a2 JL |
2120 | if (!usb_endpoint_xfer_bulk(epd) && |
2121 | !usb_endpoint_xfer_int(epd)) | |
1da177e4 LT |
2122 | continue; |
2123 | if (out_eps < max_endpoints && | |
42a6e66f JL |
2124 | usb_endpoint_dir_out(epd)) { |
2125 | endpoint[out_eps].out_ep = usb_endpoint_num(epd); | |
2126 | if (usb_endpoint_xfer_int(epd)) | |
1da177e4 LT |
2127 | endpoint[out_eps].out_interval = epd->bInterval; |
2128 | ++out_eps; | |
2129 | } | |
2130 | if (in_eps < max_endpoints && | |
42a6e66f JL |
2131 | usb_endpoint_dir_in(epd)) { |
2132 | endpoint[in_eps].in_ep = usb_endpoint_num(epd); | |
2133 | if (usb_endpoint_xfer_int(epd)) | |
1da177e4 LT |
2134 | endpoint[in_eps].in_interval = epd->bInterval; |
2135 | ++in_eps; | |
2136 | } | |
2137 | } | |
2138 | return (out_eps || in_eps) ? 0 : -ENOENT; | |
2139 | } | |
2140 | ||
2141 | /* | |
2142 | * Detects the endpoints for one-port-per-endpoint protocols. | |
2143 | */ | |
a509574e AG |
2144 | static int snd_usbmidi_detect_per_port_endpoints(struct snd_usb_midi *umidi, |
2145 | struct snd_usb_midi_endpoint_info *endpoints) | |
1da177e4 LT |
2146 | { |
2147 | int err, i; | |
21af7d8c | 2148 | |
1da177e4 LT |
2149 | err = snd_usbmidi_detect_endpoints(umidi, endpoints, MIDI_MAX_ENDPOINTS); |
2150 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { | |
2151 | if (endpoints[i].out_ep) | |
2152 | endpoints[i].out_cables = 0x0001; | |
2153 | if (endpoints[i].in_ep) | |
2154 | endpoints[i].in_cables = 0x0001; | |
2155 | } | |
2156 | return err; | |
2157 | } | |
2158 | ||
2159 | /* | |
2160 | * Detects the endpoints and ports of Yamaha devices. | |
2161 | */ | |
a509574e AG |
2162 | static int snd_usbmidi_detect_yamaha(struct snd_usb_midi *umidi, |
2163 | struct snd_usb_midi_endpoint_info *endpoint) | |
1da177e4 | 2164 | { |
a509574e | 2165 | struct usb_interface *intf; |
1da177e4 | 2166 | struct usb_host_interface *hostif; |
a509574e AG |
2167 | struct usb_interface_descriptor *intfd; |
2168 | uint8_t *cs_desc; | |
1da177e4 LT |
2169 | |
2170 | intf = umidi->iface; | |
2171 | if (!intf) | |
2172 | return -ENOENT; | |
2173 | hostif = intf->altsetting; | |
2174 | intfd = get_iface_desc(hostif); | |
2175 | if (intfd->bNumEndpoints < 1) | |
2176 | return -ENOENT; | |
2177 | ||
2178 | /* | |
2179 | * For each port there is one MIDI_IN/OUT_JACK descriptor, not | |
2180 | * necessarily with any useful contents. So simply count 'em. | |
2181 | */ | |
2182 | for (cs_desc = hostif->extra; | |
2183 | cs_desc < hostif->extra + hostif->extralen && cs_desc[0] >= 2; | |
2184 | cs_desc += cs_desc[0]) { | |
c4a87ef4 | 2185 | if (cs_desc[1] == USB_DT_CS_INTERFACE) { |
de48c7bc | 2186 | if (cs_desc[2] == UAC_MIDI_IN_JACK) |
a509574e AG |
2187 | endpoint->in_cables = |
2188 | (endpoint->in_cables << 1) | 1; | |
de48c7bc | 2189 | else if (cs_desc[2] == UAC_MIDI_OUT_JACK) |
a509574e AG |
2190 | endpoint->out_cables = |
2191 | (endpoint->out_cables << 1) | 1; | |
1da177e4 LT |
2192 | } |
2193 | } | |
2194 | if (!endpoint->in_cables && !endpoint->out_cables) | |
2195 | return -ENOENT; | |
2196 | ||
2197 | return snd_usbmidi_detect_endpoints(umidi, endpoint, 1); | |
2198 | } | |
2199 | ||
aafe77cc CL |
2200 | /* |
2201 | * Detects the endpoints and ports of Roland devices. | |
2202 | */ | |
a509574e AG |
2203 | static int snd_usbmidi_detect_roland(struct snd_usb_midi *umidi, |
2204 | struct snd_usb_midi_endpoint_info *endpoint) | |
aafe77cc | 2205 | { |
a509574e | 2206 | struct usb_interface *intf; |
aafe77cc | 2207 | struct usb_host_interface *hostif; |
a509574e | 2208 | u8 *cs_desc; |
aafe77cc CL |
2209 | |
2210 | intf = umidi->iface; | |
2211 | if (!intf) | |
2212 | return -ENOENT; | |
2213 | hostif = intf->altsetting; | |
2214 | /* | |
2215 | * Some devices have a descriptor <06 24 F1 02 <inputs> <outputs>>, | |
2216 | * some have standard class descriptors, or both kinds, or neither. | |
2217 | */ | |
2218 | for (cs_desc = hostif->extra; | |
2219 | cs_desc < hostif->extra + hostif->extralen && cs_desc[0] >= 2; | |
2220 | cs_desc += cs_desc[0]) { | |
2221 | if (cs_desc[0] >= 6 && | |
2222 | cs_desc[1] == USB_DT_CS_INTERFACE && | |
2223 | cs_desc[2] == 0xf1 && | |
2224 | cs_desc[3] == 0x02) { | |
c06ccf3e TI |
2225 | if (cs_desc[4] > 0x10 || cs_desc[5] > 0x10) |
2226 | continue; | |
aafe77cc CL |
2227 | endpoint->in_cables = (1 << cs_desc[4]) - 1; |
2228 | endpoint->out_cables = (1 << cs_desc[5]) - 1; | |
2229 | return snd_usbmidi_detect_endpoints(umidi, endpoint, 1); | |
2230 | } else if (cs_desc[0] >= 7 && | |
2231 | cs_desc[1] == USB_DT_CS_INTERFACE && | |
2232 | cs_desc[2] == UAC_HEADER) { | |
2233 | return snd_usbmidi_get_ms_info(umidi, endpoint); | |
2234 | } | |
2235 | } | |
2236 | ||
2237 | return -ENODEV; | |
2238 | } | |
2239 | ||
1da177e4 LT |
2240 | /* |
2241 | * Creates the endpoints and their ports for Midiman devices. | |
2242 | */ | |
a509574e AG |
2243 | static int snd_usbmidi_create_endpoints_midiman(struct snd_usb_midi *umidi, |
2244 | struct snd_usb_midi_endpoint_info *endpoint) | |
1da177e4 | 2245 | { |
86e07d34 | 2246 | struct snd_usb_midi_endpoint_info ep_info; |
a509574e | 2247 | struct usb_interface *intf; |
1da177e4 | 2248 | struct usb_host_interface *hostif; |
a509574e AG |
2249 | struct usb_interface_descriptor *intfd; |
2250 | struct usb_endpoint_descriptor *epd; | |
1da177e4 LT |
2251 | int cable, err; |
2252 | ||
2253 | intf = umidi->iface; | |
2254 | if (!intf) | |
2255 | return -ENOENT; | |
2256 | hostif = intf->altsetting; | |
2257 | intfd = get_iface_desc(hostif); | |
2258 | /* | |
2259 | * The various MidiSport devices have more or less random endpoint | |
2260 | * numbers, so we have to identify the endpoints by their index in | |
2261 | * the descriptor array, like the driver for that other OS does. | |
2262 | * | |
2263 | * There is one interrupt input endpoint for all input ports, one | |
2264 | * bulk output endpoint for even-numbered ports, and one for odd- | |
2265 | * numbered ports. Both bulk output endpoints have corresponding | |
2266 | * input bulk endpoints (at indices 1 and 3) which aren't used. | |
2267 | */ | |
2268 | if (intfd->bNumEndpoints < (endpoint->out_cables > 0x0001 ? 5 : 3)) { | |
0ba41d91 | 2269 | dev_dbg(&umidi->dev->dev, "not enough endpoints\n"); |
1da177e4 LT |
2270 | return -ENOENT; |
2271 | } | |
2272 | ||
2273 | epd = get_endpoint(hostif, 0); | |
913ae5a2 | 2274 | if (!usb_endpoint_dir_in(epd) || !usb_endpoint_xfer_int(epd)) { |
0ba41d91 | 2275 | dev_dbg(&umidi->dev->dev, "endpoint[0] isn't interrupt\n"); |
1da177e4 LT |
2276 | return -ENXIO; |
2277 | } | |
2278 | epd = get_endpoint(hostif, 2); | |
913ae5a2 | 2279 | if (!usb_endpoint_dir_out(epd) || !usb_endpoint_xfer_bulk(epd)) { |
0ba41d91 | 2280 | dev_dbg(&umidi->dev->dev, "endpoint[2] isn't bulk output\n"); |
1da177e4 LT |
2281 | return -ENXIO; |
2282 | } | |
2283 | if (endpoint->out_cables > 0x0001) { | |
2284 | epd = get_endpoint(hostif, 4); | |
913ae5a2 JL |
2285 | if (!usb_endpoint_dir_out(epd) || |
2286 | !usb_endpoint_xfer_bulk(epd)) { | |
a509574e AG |
2287 | dev_dbg(&umidi->dev->dev, |
2288 | "endpoint[4] isn't bulk output\n"); | |
1da177e4 LT |
2289 | return -ENXIO; |
2290 | } | |
2291 | } | |
2292 | ||
a509574e AG |
2293 | ep_info.out_ep = get_endpoint(hostif, 2)->bEndpointAddress & |
2294 | USB_ENDPOINT_NUMBER_MASK; | |
e156ac4c | 2295 | ep_info.out_interval = 0; |
1da177e4 | 2296 | ep_info.out_cables = endpoint->out_cables & 0x5555; |
a509574e AG |
2297 | err = snd_usbmidi_out_endpoint_create(umidi, &ep_info, |
2298 | &umidi->endpoints[0]); | |
1da177e4 LT |
2299 | if (err < 0) |
2300 | return err; | |
2301 | ||
a509574e AG |
2302 | ep_info.in_ep = get_endpoint(hostif, 0)->bEndpointAddress & |
2303 | USB_ENDPOINT_NUMBER_MASK; | |
1da177e4 LT |
2304 | ep_info.in_interval = get_endpoint(hostif, 0)->bInterval; |
2305 | ep_info.in_cables = endpoint->in_cables; | |
a509574e AG |
2306 | err = snd_usbmidi_in_endpoint_create(umidi, &ep_info, |
2307 | &umidi->endpoints[0]); | |
1da177e4 LT |
2308 | if (err < 0) |
2309 | return err; | |
2310 | ||
2311 | if (endpoint->out_cables > 0x0001) { | |
a509574e AG |
2312 | ep_info.out_ep = get_endpoint(hostif, 4)->bEndpointAddress & |
2313 | USB_ENDPOINT_NUMBER_MASK; | |
1da177e4 | 2314 | ep_info.out_cables = endpoint->out_cables & 0xaaaa; |
a509574e AG |
2315 | err = snd_usbmidi_out_endpoint_create(umidi, &ep_info, |
2316 | &umidi->endpoints[1]); | |
1da177e4 LT |
2317 | if (err < 0) |
2318 | return err; | |
2319 | } | |
2320 | ||
2321 | for (cable = 0; cable < 0x10; ++cable) { | |
2322 | if (endpoint->out_cables & (1 << cable)) | |
a509574e AG |
2323 | snd_usbmidi_init_substream(umidi, |
2324 | SNDRV_RAWMIDI_STREAM_OUTPUT, | |
2325 | cable, | |
eb596e0f | 2326 | -1 /* prevent trying to find jack */, |
1da177e4 LT |
2327 | &umidi->endpoints[cable & 1].out->ports[cable].substream); |
2328 | if (endpoint->in_cables & (1 << cable)) | |
a509574e AG |
2329 | snd_usbmidi_init_substream(umidi, |
2330 | SNDRV_RAWMIDI_STREAM_INPUT, | |
2331 | cable, | |
eb596e0f | 2332 | -1 /* prevent trying to find jack */, |
1da177e4 LT |
2333 | &umidi->endpoints[0].in->ports[cable].substream); |
2334 | } | |
2335 | return 0; | |
2336 | } | |
2337 | ||
efdbe3c3 | 2338 | static const struct snd_rawmidi_global_ops snd_usbmidi_ops = { |
a7b928ac CL |
2339 | .get_port_info = snd_usbmidi_get_port_info, |
2340 | }; | |
2341 | ||
a509574e | 2342 | static int snd_usbmidi_create_rawmidi(struct snd_usb_midi *umidi, |
1da177e4 LT |
2343 | int out_ports, int in_ports) |
2344 | { | |
86e07d34 | 2345 | struct snd_rawmidi *rmidi; |
1da177e4 LT |
2346 | int err; |
2347 | ||
d82af9f9 CL |
2348 | err = snd_rawmidi_new(umidi->card, "USB MIDI", |
2349 | umidi->next_midi_device++, | |
1da177e4 LT |
2350 | out_ports, in_ports, &rmidi); |
2351 | if (err < 0) | |
2352 | return err; | |
d82af9f9 | 2353 | strcpy(rmidi->name, umidi->card->shortname); |
1da177e4 LT |
2354 | rmidi->info_flags = SNDRV_RAWMIDI_INFO_OUTPUT | |
2355 | SNDRV_RAWMIDI_INFO_INPUT | | |
2356 | SNDRV_RAWMIDI_INFO_DUPLEX; | |
a7b928ac | 2357 | rmidi->ops = &snd_usbmidi_ops; |
1da177e4 LT |
2358 | rmidi->private_data = umidi; |
2359 | rmidi->private_free = snd_usbmidi_rawmidi_free; | |
a509574e AG |
2360 | snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, |
2361 | &snd_usbmidi_output_ops); | |
2362 | snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, | |
2363 | &snd_usbmidi_input_ops); | |
1da177e4 LT |
2364 | |
2365 | umidi->rmidi = rmidi; | |
2366 | return 0; | |
2367 | } | |
2368 | ||
2369 | /* | |
2370 | * Temporarily stop input. | |
2371 | */ | |
a509574e | 2372 | void snd_usbmidi_input_stop(struct list_head *p) |
1da177e4 | 2373 | { |
a509574e | 2374 | struct snd_usb_midi *umidi; |
4773d1fb | 2375 | unsigned int i, j; |
1da177e4 | 2376 | |
86e07d34 | 2377 | umidi = list_entry(p, struct snd_usb_midi, list); |
f5f16541 TI |
2378 | if (!umidi->input_running) |
2379 | return; | |
1da177e4 | 2380 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { |
a509574e | 2381 | struct snd_usb_midi_endpoint *ep = &umidi->endpoints[i]; |
1da177e4 | 2382 | if (ep->in) |
4773d1fb CL |
2383 | for (j = 0; j < INPUT_URBS; ++j) |
2384 | usb_kill_urb(ep->in->urbs[j]); | |
1da177e4 | 2385 | } |
f5f16541 | 2386 | umidi->input_running = 0; |
1da177e4 | 2387 | } |
ed136aca | 2388 | EXPORT_SYMBOL(snd_usbmidi_input_stop); |
1da177e4 | 2389 | |
9b7e5208 TI |
2390 | static void snd_usbmidi_input_start_ep(struct snd_usb_midi *umidi, |
2391 | struct snd_usb_midi_in_endpoint *ep) | |
1da177e4 | 2392 | { |
4773d1fb | 2393 | unsigned int i; |
9b7e5208 | 2394 | unsigned long flags; |
4773d1fb CL |
2395 | |
2396 | if (!ep) | |
2397 | return; | |
2398 | for (i = 0; i < INPUT_URBS; ++i) { | |
a509574e | 2399 | struct urb *urb = ep->urbs[i]; |
9b7e5208 TI |
2400 | spin_lock_irqsave(&umidi->disc_lock, flags); |
2401 | if (!atomic_read(&urb->use_count)) { | |
2402 | urb->dev = ep->umidi->dev; | |
2403 | snd_usbmidi_submit_urb(urb, GFP_ATOMIC); | |
2404 | } | |
2405 | spin_unlock_irqrestore(&umidi->disc_lock, flags); | |
1da177e4 LT |
2406 | } |
2407 | } | |
2408 | ||
2409 | /* | |
2410 | * Resume input after a call to snd_usbmidi_input_stop(). | |
2411 | */ | |
a509574e | 2412 | void snd_usbmidi_input_start(struct list_head *p) |
1da177e4 | 2413 | { |
a509574e | 2414 | struct snd_usb_midi *umidi; |
1da177e4 LT |
2415 | int i; |
2416 | ||
86e07d34 | 2417 | umidi = list_entry(p, struct snd_usb_midi, list); |
f5f16541 TI |
2418 | if (umidi->input_running || !umidi->opened[1]) |
2419 | return; | |
1da177e4 | 2420 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) |
9b7e5208 | 2421 | snd_usbmidi_input_start_ep(umidi, umidi->endpoints[i].in); |
f5f16541 | 2422 | umidi->input_running = 1; |
1da177e4 | 2423 | } |
ed136aca | 2424 | EXPORT_SYMBOL(snd_usbmidi_input_start); |
1da177e4 | 2425 | |
f7881e5e AG |
2426 | /* |
2427 | * Prepare for suspend. Typically called from the USB suspend callback. | |
2428 | */ | |
2429 | void snd_usbmidi_suspend(struct list_head *p) | |
2430 | { | |
2431 | struct snd_usb_midi *umidi; | |
2432 | ||
2433 | umidi = list_entry(p, struct snd_usb_midi, list); | |
2434 | mutex_lock(&umidi->mutex); | |
2435 | snd_usbmidi_input_stop(p); | |
2436 | mutex_unlock(&umidi->mutex); | |
2437 | } | |
2438 | EXPORT_SYMBOL(snd_usbmidi_suspend); | |
2439 | ||
2440 | /* | |
2441 | * Resume. Typically called from the USB resume callback. | |
2442 | */ | |
2443 | void snd_usbmidi_resume(struct list_head *p) | |
2444 | { | |
2445 | struct snd_usb_midi *umidi; | |
2446 | ||
2447 | umidi = list_entry(p, struct snd_usb_midi, list); | |
2448 | mutex_lock(&umidi->mutex); | |
2449 | snd_usbmidi_input_start(p); | |
2450 | mutex_unlock(&umidi->mutex); | |
2451 | } | |
2452 | EXPORT_SYMBOL(snd_usbmidi_resume); | |
2453 | ||
1da177e4 LT |
2454 | /* |
2455 | * Creates and registers everything needed for a MIDI streaming interface. | |
2456 | */ | |
79289e24 TI |
2457 | int __snd_usbmidi_create(struct snd_card *card, |
2458 | struct usb_interface *iface, | |
2459 | struct list_head *midi_list, | |
2460 | const struct snd_usb_audio_quirk *quirk, | |
2461 | unsigned int usb_id) | |
1da177e4 | 2462 | { |
a509574e | 2463 | struct snd_usb_midi *umidi; |
86e07d34 | 2464 | struct snd_usb_midi_endpoint_info endpoints[MIDI_MAX_ENDPOINTS]; |
1da177e4 LT |
2465 | int out_ports, in_ports; |
2466 | int i, err; | |
2467 | ||
561b220a | 2468 | umidi = kzalloc(sizeof(*umidi), GFP_KERNEL); |
1da177e4 LT |
2469 | if (!umidi) |
2470 | return -ENOMEM; | |
d82af9f9 CL |
2471 | umidi->dev = interface_to_usbdev(iface); |
2472 | umidi->card = card; | |
1da177e4 LT |
2473 | umidi->iface = iface; |
2474 | umidi->quirk = quirk; | |
2475 | umidi->usb_protocol_ops = &snd_usbmidi_standard_ops; | |
c0792e00 | 2476 | spin_lock_init(&umidi->disc_lock); |
59866da9 | 2477 | init_rwsem(&umidi->disc_rwsem); |
96f61d9a | 2478 | mutex_init(&umidi->mutex); |
79289e24 TI |
2479 | if (!usb_id) |
2480 | usb_id = USB_ID(le16_to_cpu(umidi->dev->descriptor.idVendor), | |
d82af9f9 | 2481 | le16_to_cpu(umidi->dev->descriptor.idProduct)); |
79289e24 | 2482 | umidi->usb_id = usb_id; |
a6162afa | 2483 | timer_setup(&umidi->error_timer, snd_usbmidi_error_timer, 0); |
1da177e4 LT |
2484 | |
2485 | /* detect the endpoint(s) to use */ | |
2486 | memset(endpoints, 0, sizeof(endpoints)); | |
d1bda045 CL |
2487 | switch (quirk ? quirk->type : QUIRK_MIDI_STANDARD_INTERFACE) { |
2488 | case QUIRK_MIDI_STANDARD_INTERFACE: | |
1da177e4 | 2489 | err = snd_usbmidi_get_ms_info(umidi, endpoints); |
d82af9f9 | 2490 | if (umidi->usb_id == USB_ID(0x0763, 0x0150)) /* M-Audio Uno */ |
d05cc104 CL |
2491 | umidi->usb_protocol_ops = |
2492 | &snd_usbmidi_maudio_broken_running_status_ops; | |
d1bda045 | 2493 | break; |
030a07e4 KW |
2494 | case QUIRK_MIDI_US122L: |
2495 | umidi->usb_protocol_ops = &snd_usbmidi_122l_ops; | |
e2d413f9 | 2496 | fallthrough; |
d1bda045 CL |
2497 | case QUIRK_MIDI_FIXED_ENDPOINT: |
2498 | memcpy(&endpoints[0], quirk->data, | |
86e07d34 | 2499 | sizeof(struct snd_usb_midi_endpoint_info)); |
d1bda045 CL |
2500 | err = snd_usbmidi_detect_endpoints(umidi, &endpoints[0], 1); |
2501 | break; | |
2502 | case QUIRK_MIDI_YAMAHA: | |
2503 | err = snd_usbmidi_detect_yamaha(umidi, &endpoints[0]); | |
2504 | break; | |
aafe77cc CL |
2505 | case QUIRK_MIDI_ROLAND: |
2506 | err = snd_usbmidi_detect_roland(umidi, &endpoints[0]); | |
2507 | break; | |
d1bda045 CL |
2508 | case QUIRK_MIDI_MIDIMAN: |
2509 | umidi->usb_protocol_ops = &snd_usbmidi_midiman_ops; | |
2510 | memcpy(&endpoints[0], quirk->data, | |
86e07d34 | 2511 | sizeof(struct snd_usb_midi_endpoint_info)); |
d1bda045 CL |
2512 | err = 0; |
2513 | break; | |
2514 | case QUIRK_MIDI_NOVATION: | |
2515 | umidi->usb_protocol_ops = &snd_usbmidi_novation_ops; | |
2516 | err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints); | |
2517 | break; | |
c7f57216 | 2518 | case QUIRK_MIDI_RAW_BYTES: |
d1bda045 | 2519 | umidi->usb_protocol_ops = &snd_usbmidi_raw_ops; |
55de5ef9 CL |
2520 | /* |
2521 | * Interface 1 contains isochronous endpoints, but with the same | |
2522 | * numbers as in interface 0. Since it is interface 1 that the | |
2523 | * USB core has most recently seen, these descriptors are now | |
2524 | * associated with the endpoint numbers. This will foul up our | |
2525 | * attempts to submit bulk/interrupt URBs to the endpoints in | |
2526 | * interface 0, so we have to make sure that the USB core looks | |
2527 | * again at interface 0 by calling usb_set_interface() on it. | |
2528 | */ | |
c7f57216 CL |
2529 | if (umidi->usb_id == USB_ID(0x07fd, 0x0001)) /* MOTU Fastlane */ |
2530 | usb_set_interface(umidi->dev, 0, 0); | |
d1bda045 CL |
2531 | err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints); |
2532 | break; | |
2533 | case QUIRK_MIDI_EMAGIC: | |
2534 | umidi->usb_protocol_ops = &snd_usbmidi_emagic_ops; | |
2535 | memcpy(&endpoints[0], quirk->data, | |
86e07d34 | 2536 | sizeof(struct snd_usb_midi_endpoint_info)); |
d1bda045 CL |
2537 | err = snd_usbmidi_detect_endpoints(umidi, &endpoints[0], 1); |
2538 | break; | |
cc7a59bd | 2539 | case QUIRK_MIDI_CME: |
61870aed | 2540 | umidi->usb_protocol_ops = &snd_usbmidi_cme_ops; |
d1bda045 CL |
2541 | err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints); |
2542 | break; | |
4434ade8 KF |
2543 | case QUIRK_MIDI_AKAI: |
2544 | umidi->usb_protocol_ops = &snd_usbmidi_akai_ops; | |
2545 | err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints); | |
2546 | /* endpoint 1 is input-only */ | |
2547 | endpoints[1].out_cables = 0; | |
2548 | break; | |
1ef0e0a0 KA |
2549 | case QUIRK_MIDI_FTDI: |
2550 | umidi->usb_protocol_ops = &snd_usbmidi_ftdi_ops; | |
2551 | ||
2552 | /* set baud rate to 31250 (48 MHz / 16 / 96) */ | |
2553 | err = usb_control_msg(umidi->dev, usb_sndctrlpipe(umidi->dev, 0), | |
2554 | 3, 0x40, 0x60, 0, NULL, 0, 1000); | |
2555 | if (err < 0) | |
2556 | break; | |
2557 | ||
1ca8b201 CL |
2558 | err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints); |
2559 | break; | |
2560 | case QUIRK_MIDI_CH345: | |
a91e627e | 2561 | umidi->usb_protocol_ops = &snd_usbmidi_ch345_broken_sysex_ops; |
1ef0e0a0 KA |
2562 | err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints); |
2563 | break; | |
d1bda045 | 2564 | default: |
a509574e AG |
2565 | dev_err(&umidi->dev->dev, "invalid quirk type %d\n", |
2566 | quirk->type); | |
d1bda045 CL |
2567 | err = -ENXIO; |
2568 | break; | |
1da177e4 | 2569 | } |
731209cc ME |
2570 | if (err < 0) |
2571 | goto free_midi; | |
1da177e4 LT |
2572 | |
2573 | /* create rawmidi device */ | |
2574 | out_ports = 0; | |
2575 | in_ports = 0; | |
2576 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { | |
fbc54391 AM |
2577 | out_ports += hweight16(endpoints[i].out_cables); |
2578 | in_ports += hweight16(endpoints[i].in_cables); | |
1da177e4 LT |
2579 | } |
2580 | err = snd_usbmidi_create_rawmidi(umidi, out_ports, in_ports); | |
731209cc ME |
2581 | if (err < 0) |
2582 | goto free_midi; | |
1da177e4 LT |
2583 | |
2584 | /* create endpoint/port structures */ | |
2585 | if (quirk && quirk->type == QUIRK_MIDI_MIDIMAN) | |
2586 | err = snd_usbmidi_create_endpoints_midiman(umidi, &endpoints[0]); | |
2587 | else | |
2588 | err = snd_usbmidi_create_endpoints(umidi, endpoints); | |
731209cc ME |
2589 | if (err < 0) |
2590 | goto exit; | |
1da177e4 | 2591 | |
cbc200bc CL |
2592 | usb_autopm_get_interface_no_resume(umidi->iface); |
2593 | ||
d82af9f9 | 2594 | list_add_tail(&umidi->list, midi_list); |
1da177e4 | 2595 | return 0; |
731209cc ME |
2596 | |
2597 | free_midi: | |
2598 | kfree(umidi); | |
2599 | exit: | |
2600 | return err; | |
1da177e4 | 2601 | } |
79289e24 | 2602 | EXPORT_SYMBOL(__snd_usbmidi_create); |