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Commit | Line | Data |
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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> |
da155d5b | 50 | #include <linux/module.h> |
de48c7bc | 51 | |
1da177e4 | 52 | #include <sound/core.h> |
96f61d9a | 53 | #include <sound/control.h> |
1da177e4 | 54 | #include <sound/rawmidi.h> |
a7b928ac | 55 | #include <sound/asequencer.h> |
1da177e4 | 56 | #include "usbaudio.h" |
e5779998 | 57 | #include "midi.h" |
88a8516a | 58 | #include "power.h" |
e5779998 | 59 | #include "helper.h" |
1da177e4 LT |
60 | |
61 | /* | |
62 | * define this to log all USB packets | |
63 | */ | |
64 | /* #define DUMP_PACKETS */ | |
65 | ||
c8846970 | 66 | /* |
37ebb549 | 67 | * how long to wait after some USB errors, so that hub_wq can disconnect() us |
c8846970 CL |
68 | * without too many spurious errors |
69 | */ | |
70 | #define ERROR_DELAY_JIFFIES (HZ / 10) | |
71 | ||
ed4affa5 | 72 | #define OUTPUT_URBS 7 |
4773d1fb CL |
73 | #define INPUT_URBS 7 |
74 | ||
1da177e4 LT |
75 | |
76 | MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>"); | |
77 | MODULE_DESCRIPTION("USB Audio/MIDI helper module"); | |
78 | MODULE_LICENSE("Dual BSD/GPL"); | |
79 | ||
80 | ||
81 | struct usb_ms_header_descriptor { | |
82 | __u8 bLength; | |
83 | __u8 bDescriptorType; | |
84 | __u8 bDescriptorSubtype; | |
85 | __u8 bcdMSC[2]; | |
86 | __le16 wTotalLength; | |
87 | } __attribute__ ((packed)); | |
88 | ||
89 | struct usb_ms_endpoint_descriptor { | |
90 | __u8 bLength; | |
91 | __u8 bDescriptorType; | |
92 | __u8 bDescriptorSubtype; | |
93 | __u8 bNumEmbMIDIJack; | |
94 | __u8 baAssocJackID[0]; | |
95 | } __attribute__ ((packed)); | |
96 | ||
86e07d34 TI |
97 | struct snd_usb_midi_in_endpoint; |
98 | struct snd_usb_midi_out_endpoint; | |
99 | struct snd_usb_midi_endpoint; | |
1da177e4 LT |
100 | |
101 | struct usb_protocol_ops { | |
86e07d34 | 102 | void (*input)(struct snd_usb_midi_in_endpoint*, uint8_t*, int); |
ed4affa5 | 103 | void (*output)(struct snd_usb_midi_out_endpoint *ep, struct urb *urb); |
1da177e4 | 104 | void (*output_packet)(struct urb*, uint8_t, uint8_t, uint8_t, uint8_t); |
a509574e AG |
105 | void (*init_out_endpoint)(struct snd_usb_midi_out_endpoint *); |
106 | void (*finish_out_endpoint)(struct snd_usb_midi_out_endpoint *); | |
1da177e4 LT |
107 | }; |
108 | ||
109 | struct snd_usb_midi { | |
d82af9f9 CL |
110 | struct usb_device *dev; |
111 | struct snd_card *card; | |
1da177e4 | 112 | struct usb_interface *iface; |
86e07d34 TI |
113 | const struct snd_usb_audio_quirk *quirk; |
114 | struct snd_rawmidi *rmidi; | |
a509574e | 115 | struct usb_protocol_ops *usb_protocol_ops; |
1da177e4 | 116 | struct list_head list; |
c8846970 | 117 | struct timer_list error_timer; |
c0792e00 | 118 | spinlock_t disc_lock; |
59866da9 | 119 | struct rw_semaphore disc_rwsem; |
96f61d9a | 120 | struct mutex mutex; |
d82af9f9 CL |
121 | u32 usb_id; |
122 | int next_midi_device; | |
1da177e4 LT |
123 | |
124 | struct snd_usb_midi_endpoint { | |
86e07d34 TI |
125 | struct snd_usb_midi_out_endpoint *out; |
126 | struct snd_usb_midi_in_endpoint *in; | |
1da177e4 LT |
127 | } endpoints[MIDI_MAX_ENDPOINTS]; |
128 | unsigned long input_triggered; | |
f5f16541 | 129 | unsigned int opened[2]; |
c0792e00 | 130 | unsigned char disconnected; |
f5f16541 | 131 | unsigned char input_running; |
96f61d9a CL |
132 | |
133 | struct snd_kcontrol *roland_load_ctl; | |
1da177e4 LT |
134 | }; |
135 | ||
136 | struct snd_usb_midi_out_endpoint { | |
a509574e | 137 | struct snd_usb_midi *umidi; |
ed4affa5 CL |
138 | struct out_urb_context { |
139 | struct urb *urb; | |
140 | struct snd_usb_midi_out_endpoint *ep; | |
141 | } urbs[OUTPUT_URBS]; | |
142 | unsigned int active_urbs; | |
a65dd997 | 143 | unsigned int drain_urbs; |
1da177e4 LT |
144 | int max_transfer; /* size of urb buffer */ |
145 | struct tasklet_struct tasklet; | |
a65dd997 | 146 | unsigned int next_urb; |
1da177e4 LT |
147 | spinlock_t buffer_lock; |
148 | ||
149 | struct usbmidi_out_port { | |
a509574e | 150 | struct snd_usb_midi_out_endpoint *ep; |
86e07d34 | 151 | struct snd_rawmidi_substream *substream; |
1da177e4 LT |
152 | int active; |
153 | uint8_t cable; /* cable number << 4 */ | |
154 | uint8_t state; | |
155 | #define STATE_UNKNOWN 0 | |
156 | #define STATE_1PARAM 1 | |
157 | #define STATE_2PARAM_1 2 | |
158 | #define STATE_2PARAM_2 3 | |
159 | #define STATE_SYSEX_0 4 | |
160 | #define STATE_SYSEX_1 5 | |
161 | #define STATE_SYSEX_2 6 | |
162 | uint8_t data[2]; | |
163 | } ports[0x10]; | |
164 | int current_port; | |
a65dd997 CL |
165 | |
166 | wait_queue_head_t drain_wait; | |
1da177e4 LT |
167 | }; |
168 | ||
169 | struct snd_usb_midi_in_endpoint { | |
a509574e AG |
170 | struct snd_usb_midi *umidi; |
171 | struct urb *urbs[INPUT_URBS]; | |
1da177e4 | 172 | struct usbmidi_in_port { |
86e07d34 | 173 | struct snd_rawmidi_substream *substream; |
d05cc104 | 174 | u8 running_status_length; |
1da177e4 | 175 | } ports[0x10]; |
c8846970 | 176 | u8 seen_f5; |
a91e627e CL |
177 | bool in_sysex; |
178 | u8 last_cin; | |
c8846970 | 179 | u8 error_resubmit; |
1da177e4 LT |
180 | int current_port; |
181 | }; | |
182 | ||
a509574e | 183 | static void snd_usbmidi_do_output(struct snd_usb_midi_out_endpoint *ep); |
1da177e4 LT |
184 | |
185 | static const uint8_t snd_usbmidi_cin_length[] = { | |
186 | 0, 0, 2, 3, 3, 1, 2, 3, 3, 3, 3, 3, 2, 2, 3, 1 | |
187 | }; | |
188 | ||
189 | /* | |
190 | * Submits the URB, with error handling. | |
191 | */ | |
a509574e | 192 | static int snd_usbmidi_submit_urb(struct urb *urb, gfp_t flags) |
1da177e4 LT |
193 | { |
194 | int err = usb_submit_urb(urb, flags); | |
195 | if (err < 0 && err != -ENODEV) | |
0ba41d91 | 196 | dev_err(&urb->dev->dev, "usb_submit_urb: %d\n", err); |
1da177e4 LT |
197 | return err; |
198 | } | |
199 | ||
200 | /* | |
201 | * Error handling for URB completion functions. | |
202 | */ | |
0ba41d91 | 203 | static int snd_usbmidi_urb_error(const struct urb *urb) |
1da177e4 | 204 | { |
0ba41d91 | 205 | switch (urb->status) { |
c8846970 CL |
206 | /* manually unlinked, or device gone */ |
207 | case -ENOENT: | |
208 | case -ECONNRESET: | |
209 | case -ESHUTDOWN: | |
210 | case -ENODEV: | |
211 | return -ENODEV; | |
212 | /* errors that might occur during unplugging */ | |
38e2bfc9 PZ |
213 | case -EPROTO: |
214 | case -ETIME: | |
215 | case -EILSEQ: | |
c8846970 CL |
216 | return -EIO; |
217 | default: | |
0ba41d91 | 218 | dev_err(&urb->dev->dev, "urb status %d\n", urb->status); |
c8846970 CL |
219 | return 0; /* continue */ |
220 | } | |
1da177e4 LT |
221 | } |
222 | ||
223 | /* | |
224 | * Receives a chunk of MIDI data. | |
225 | */ | |
a509574e AG |
226 | static void snd_usbmidi_input_data(struct snd_usb_midi_in_endpoint *ep, |
227 | int portidx, uint8_t *data, int length) | |
1da177e4 | 228 | { |
a509574e | 229 | struct usbmidi_in_port *port = &ep->ports[portidx]; |
1da177e4 LT |
230 | |
231 | if (!port->substream) { | |
0ba41d91 | 232 | dev_dbg(&ep->umidi->dev->dev, "unexpected port %d!\n", portidx); |
1da177e4 LT |
233 | return; |
234 | } | |
235 | if (!test_bit(port->substream->number, &ep->umidi->input_triggered)) | |
236 | return; | |
237 | snd_rawmidi_receive(port->substream, data, length); | |
238 | } | |
239 | ||
240 | #ifdef DUMP_PACKETS | |
241 | static void dump_urb(const char *type, const u8 *data, int length) | |
242 | { | |
243 | snd_printk(KERN_DEBUG "%s packet: [", type); | |
244 | for (; length > 0; ++data, --length) | |
245 | printk(" %02x", *data); | |
246 | printk(" ]\n"); | |
247 | } | |
248 | #else | |
249 | #define dump_urb(type, data, length) /* nothing */ | |
250 | #endif | |
251 | ||
252 | /* | |
253 | * Processes the data read from the device. | |
254 | */ | |
a509574e | 255 | static void snd_usbmidi_in_urb_complete(struct urb *urb) |
1da177e4 | 256 | { |
a509574e | 257 | struct snd_usb_midi_in_endpoint *ep = urb->context; |
1da177e4 LT |
258 | |
259 | if (urb->status == 0) { | |
260 | dump_urb("received", urb->transfer_buffer, urb->actual_length); | |
261 | ep->umidi->usb_protocol_ops->input(ep, urb->transfer_buffer, | |
262 | urb->actual_length); | |
263 | } else { | |
0ba41d91 | 264 | int err = snd_usbmidi_urb_error(urb); |
c8846970 CL |
265 | if (err < 0) { |
266 | if (err != -ENODEV) { | |
267 | ep->error_resubmit = 1; | |
268 | mod_timer(&ep->umidi->error_timer, | |
269 | jiffies + ERROR_DELAY_JIFFIES); | |
270 | } | |
1da177e4 | 271 | return; |
c8846970 | 272 | } |
1da177e4 LT |
273 | } |
274 | ||
d82af9f9 | 275 | urb->dev = ep->umidi->dev; |
3cfc1eb1 | 276 | snd_usbmidi_submit_urb(urb, GFP_ATOMIC); |
1da177e4 LT |
277 | } |
278 | ||
a509574e | 279 | static void snd_usbmidi_out_urb_complete(struct urb *urb) |
1da177e4 | 280 | { |
ed4affa5 | 281 | struct out_urb_context *context = urb->context; |
a509574e | 282 | struct snd_usb_midi_out_endpoint *ep = context->ep; |
a65dd997 | 283 | unsigned int urb_index; |
1da177e4 LT |
284 | |
285 | spin_lock(&ep->buffer_lock); | |
a65dd997 CL |
286 | urb_index = context - ep->urbs; |
287 | ep->active_urbs &= ~(1 << urb_index); | |
288 | if (unlikely(ep->drain_urbs)) { | |
289 | ep->drain_urbs &= ~(1 << urb_index); | |
290 | wake_up(&ep->drain_wait); | |
291 | } | |
1da177e4 LT |
292 | spin_unlock(&ep->buffer_lock); |
293 | if (urb->status < 0) { | |
0ba41d91 | 294 | int err = snd_usbmidi_urb_error(urb); |
c8846970 CL |
295 | if (err < 0) { |
296 | if (err != -ENODEV) | |
297 | mod_timer(&ep->umidi->error_timer, | |
298 | jiffies + ERROR_DELAY_JIFFIES); | |
1da177e4 | 299 | return; |
c8846970 | 300 | } |
1da177e4 LT |
301 | } |
302 | snd_usbmidi_do_output(ep); | |
303 | } | |
304 | ||
305 | /* | |
306 | * This is called when some data should be transferred to the device | |
307 | * (from one or more substreams). | |
308 | */ | |
a509574e | 309 | static void snd_usbmidi_do_output(struct snd_usb_midi_out_endpoint *ep) |
1da177e4 | 310 | { |
ed4affa5 | 311 | unsigned int urb_index; |
a509574e | 312 | struct urb *urb; |
1da177e4 LT |
313 | unsigned long flags; |
314 | ||
315 | spin_lock_irqsave(&ep->buffer_lock, flags); | |
d82af9f9 | 316 | if (ep->umidi->disconnected) { |
1da177e4 LT |
317 | spin_unlock_irqrestore(&ep->buffer_lock, flags); |
318 | return; | |
319 | } | |
320 | ||
a65dd997 | 321 | urb_index = ep->next_urb; |
ed4affa5 | 322 | for (;;) { |
a65dd997 CL |
323 | if (!(ep->active_urbs & (1 << urb_index))) { |
324 | urb = ep->urbs[urb_index].urb; | |
325 | urb->transfer_buffer_length = 0; | |
326 | ep->umidi->usb_protocol_ops->output(ep, urb); | |
327 | if (urb->transfer_buffer_length == 0) | |
ed4affa5 | 328 | break; |
1da177e4 | 329 | |
a65dd997 CL |
330 | dump_urb("sending", urb->transfer_buffer, |
331 | urb->transfer_buffer_length); | |
d82af9f9 | 332 | urb->dev = ep->umidi->dev; |
a65dd997 CL |
333 | if (snd_usbmidi_submit_urb(urb, GFP_ATOMIC) < 0) |
334 | break; | |
335 | ep->active_urbs |= 1 << urb_index; | |
336 | } | |
337 | if (++urb_index >= OUTPUT_URBS) | |
338 | urb_index = 0; | |
339 | if (urb_index == ep->next_urb) | |
ed4affa5 | 340 | break; |
1da177e4 | 341 | } |
a65dd997 | 342 | ep->next_urb = urb_index; |
1da177e4 LT |
343 | spin_unlock_irqrestore(&ep->buffer_lock, flags); |
344 | } | |
345 | ||
346 | static void snd_usbmidi_out_tasklet(unsigned long data) | |
347 | { | |
a509574e AG |
348 | struct snd_usb_midi_out_endpoint *ep = |
349 | (struct snd_usb_midi_out_endpoint *) data; | |
1da177e4 LT |
350 | |
351 | snd_usbmidi_do_output(ep); | |
352 | } | |
353 | ||
c8846970 CL |
354 | /* called after transfers had been interrupted due to some USB error */ |
355 | static void snd_usbmidi_error_timer(unsigned long data) | |
356 | { | |
86e07d34 | 357 | struct snd_usb_midi *umidi = (struct snd_usb_midi *)data; |
4773d1fb | 358 | unsigned int i, j; |
c8846970 | 359 | |
c0792e00 TI |
360 | spin_lock(&umidi->disc_lock); |
361 | if (umidi->disconnected) { | |
362 | spin_unlock(&umidi->disc_lock); | |
363 | return; | |
364 | } | |
c8846970 | 365 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { |
86e07d34 | 366 | struct snd_usb_midi_in_endpoint *in = umidi->endpoints[i].in; |
c8846970 CL |
367 | if (in && in->error_resubmit) { |
368 | in->error_resubmit = 0; | |
4773d1fb | 369 | for (j = 0; j < INPUT_URBS; ++j) { |
66139a48 TI |
370 | if (atomic_read(&in->urbs[j]->use_count)) |
371 | continue; | |
d82af9f9 | 372 | in->urbs[j]->dev = umidi->dev; |
4773d1fb CL |
373 | snd_usbmidi_submit_urb(in->urbs[j], GFP_ATOMIC); |
374 | } | |
c8846970 CL |
375 | } |
376 | if (umidi->endpoints[i].out) | |
377 | snd_usbmidi_do_output(umidi->endpoints[i].out); | |
378 | } | |
c0792e00 | 379 | spin_unlock(&umidi->disc_lock); |
c8846970 CL |
380 | } |
381 | ||
1da177e4 | 382 | /* helper function to send static data that may not DMA-able */ |
a509574e | 383 | static int send_bulk_static_data(struct snd_usb_midi_out_endpoint *ep, |
1da177e4 LT |
384 | const void *data, int len) |
385 | { | |
ed4affa5 | 386 | int err = 0; |
52978be6 | 387 | void *buf = kmemdup(data, len, GFP_KERNEL); |
1da177e4 LT |
388 | if (!buf) |
389 | return -ENOMEM; | |
1da177e4 | 390 | dump_urb("sending", buf, len); |
ed4affa5 | 391 | if (ep->urbs[0].urb) |
d82af9f9 | 392 | err = usb_bulk_msg(ep->umidi->dev, ep->urbs[0].urb->pipe, |
ed4affa5 | 393 | buf, len, NULL, 250); |
1da177e4 LT |
394 | kfree(buf); |
395 | return err; | |
396 | } | |
397 | ||
398 | /* | |
399 | * Standard USB MIDI protocol: see the spec. | |
400 | * Midiman protocol: like the standard protocol, but the control byte is the | |
401 | * fourth byte in each packet, and uses length instead of CIN. | |
402 | */ | |
403 | ||
a509574e AG |
404 | static void snd_usbmidi_standard_input(struct snd_usb_midi_in_endpoint *ep, |
405 | uint8_t *buffer, int buffer_length) | |
1da177e4 LT |
406 | { |
407 | int i; | |
408 | ||
409 | for (i = 0; i + 3 < buffer_length; i += 4) | |
410 | if (buffer[i] != 0) { | |
411 | int cable = buffer[i] >> 4; | |
412 | int length = snd_usbmidi_cin_length[buffer[i] & 0x0f]; | |
a509574e AG |
413 | snd_usbmidi_input_data(ep, cable, &buffer[i + 1], |
414 | length); | |
1da177e4 LT |
415 | } |
416 | } | |
417 | ||
a509574e AG |
418 | static void snd_usbmidi_midiman_input(struct snd_usb_midi_in_endpoint *ep, |
419 | uint8_t *buffer, int buffer_length) | |
1da177e4 LT |
420 | { |
421 | int i; | |
422 | ||
423 | for (i = 0; i + 3 < buffer_length; i += 4) | |
424 | if (buffer[i + 3] != 0) { | |
425 | int port = buffer[i + 3] >> 4; | |
426 | int length = buffer[i + 3] & 3; | |
427 | snd_usbmidi_input_data(ep, port, &buffer[i], length); | |
428 | } | |
429 | } | |
430 | ||
d05cc104 CL |
431 | /* |
432 | * Buggy M-Audio device: running status on input results in a packet that has | |
433 | * the data bytes but not the status byte and that is marked with CIN 4. | |
434 | */ | |
435 | static void snd_usbmidi_maudio_broken_running_status_input( | |
a509574e AG |
436 | struct snd_usb_midi_in_endpoint *ep, |
437 | uint8_t *buffer, int buffer_length) | |
d05cc104 CL |
438 | { |
439 | int i; | |
440 | ||
441 | for (i = 0; i + 3 < buffer_length; i += 4) | |
442 | if (buffer[i] != 0) { | |
443 | int cable = buffer[i] >> 4; | |
444 | u8 cin = buffer[i] & 0x0f; | |
445 | struct usbmidi_in_port *port = &ep->ports[cable]; | |
446 | int length; | |
21af7d8c | 447 | |
d05cc104 CL |
448 | length = snd_usbmidi_cin_length[cin]; |
449 | if (cin == 0xf && buffer[i + 1] >= 0xf8) | |
450 | ; /* realtime msg: no running status change */ | |
451 | else if (cin >= 0x8 && cin <= 0xe) | |
452 | /* channel msg */ | |
453 | port->running_status_length = length - 1; | |
454 | else if (cin == 0x4 && | |
455 | port->running_status_length != 0 && | |
456 | buffer[i + 1] < 0x80) | |
457 | /* CIN 4 that is not a SysEx */ | |
458 | length = port->running_status_length; | |
459 | else | |
460 | /* | |
461 | * All other msgs cannot begin running status. | |
462 | * (A channel msg sent as two or three CIN 0xF | |
463 | * packets could in theory, but this device | |
464 | * doesn't use this format.) | |
465 | */ | |
466 | port->running_status_length = 0; | |
a509574e AG |
467 | snd_usbmidi_input_data(ep, cable, &buffer[i + 1], |
468 | length); | |
d05cc104 CL |
469 | } |
470 | } | |
471 | ||
a91e627e CL |
472 | /* |
473 | * QinHeng CH345 is buggy: every second packet inside a SysEx has not CIN 4 | |
474 | * but the previously seen CIN, but still with three data bytes. | |
475 | */ | |
476 | static void ch345_broken_sysex_input(struct snd_usb_midi_in_endpoint *ep, | |
477 | uint8_t *buffer, int buffer_length) | |
478 | { | |
479 | unsigned int i, cin, length; | |
480 | ||
481 | for (i = 0; i + 3 < buffer_length; i += 4) { | |
482 | if (buffer[i] == 0 && i > 0) | |
483 | break; | |
484 | cin = buffer[i] & 0x0f; | |
485 | if (ep->in_sysex && | |
486 | cin == ep->last_cin && | |
487 | (buffer[i + 1 + (cin == 0x6)] & 0x80) == 0) | |
488 | cin = 0x4; | |
489 | #if 0 | |
490 | if (buffer[i + 1] == 0x90) { | |
491 | /* | |
492 | * Either a corrupted running status or a real note-on | |
493 | * message; impossible to detect reliably. | |
494 | */ | |
495 | } | |
496 | #endif | |
497 | length = snd_usbmidi_cin_length[cin]; | |
498 | snd_usbmidi_input_data(ep, 0, &buffer[i + 1], length); | |
499 | ep->in_sysex = cin == 0x4; | |
500 | if (!ep->in_sysex) | |
501 | ep->last_cin = cin; | |
502 | } | |
503 | } | |
504 | ||
61870aed CL |
505 | /* |
506 | * CME protocol: like the standard protocol, but SysEx commands are sent as a | |
507 | * single USB packet preceded by a 0x0F byte. | |
508 | */ | |
509 | static void snd_usbmidi_cme_input(struct snd_usb_midi_in_endpoint *ep, | |
510 | uint8_t *buffer, int buffer_length) | |
511 | { | |
512 | if (buffer_length < 2 || (buffer[0] & 0x0f) != 0x0f) | |
513 | snd_usbmidi_standard_input(ep, buffer, buffer_length); | |
514 | else | |
515 | snd_usbmidi_input_data(ep, buffer[0] >> 4, | |
516 | &buffer[1], buffer_length - 1); | |
517 | } | |
518 | ||
1da177e4 LT |
519 | /* |
520 | * Adds one USB MIDI packet to the output buffer. | |
521 | */ | |
a509574e AG |
522 | static void snd_usbmidi_output_standard_packet(struct urb *urb, uint8_t p0, |
523 | uint8_t p1, uint8_t p2, | |
524 | uint8_t p3) | |
1da177e4 LT |
525 | { |
526 | ||
a509574e AG |
527 | uint8_t *buf = |
528 | (uint8_t *)urb->transfer_buffer + urb->transfer_buffer_length; | |
1da177e4 LT |
529 | buf[0] = p0; |
530 | buf[1] = p1; | |
531 | buf[2] = p2; | |
532 | buf[3] = p3; | |
533 | urb->transfer_buffer_length += 4; | |
534 | } | |
535 | ||
536 | /* | |
537 | * Adds one Midiman packet to the output buffer. | |
538 | */ | |
a509574e AG |
539 | static void snd_usbmidi_output_midiman_packet(struct urb *urb, uint8_t p0, |
540 | uint8_t p1, uint8_t p2, | |
541 | uint8_t p3) | |
1da177e4 LT |
542 | { |
543 | ||
a509574e AG |
544 | uint8_t *buf = |
545 | (uint8_t *)urb->transfer_buffer + urb->transfer_buffer_length; | |
1da177e4 LT |
546 | buf[0] = p1; |
547 | buf[1] = p2; | |
548 | buf[2] = p3; | |
549 | buf[3] = (p0 & 0xf0) | snd_usbmidi_cin_length[p0 & 0x0f]; | |
550 | urb->transfer_buffer_length += 4; | |
551 | } | |
552 | ||
553 | /* | |
554 | * Converts MIDI commands to USB MIDI packets. | |
555 | */ | |
a509574e AG |
556 | static void snd_usbmidi_transmit_byte(struct usbmidi_out_port *port, |
557 | uint8_t b, struct urb *urb) | |
1da177e4 LT |
558 | { |
559 | uint8_t p0 = port->cable; | |
560 | void (*output_packet)(struct urb*, uint8_t, uint8_t, uint8_t, uint8_t) = | |
561 | port->ep->umidi->usb_protocol_ops->output_packet; | |
562 | ||
563 | if (b >= 0xf8) { | |
564 | output_packet(urb, p0 | 0x0f, b, 0, 0); | |
565 | } else if (b >= 0xf0) { | |
566 | switch (b) { | |
567 | case 0xf0: | |
568 | port->data[0] = b; | |
569 | port->state = STATE_SYSEX_1; | |
570 | break; | |
571 | case 0xf1: | |
572 | case 0xf3: | |
573 | port->data[0] = b; | |
574 | port->state = STATE_1PARAM; | |
575 | break; | |
576 | case 0xf2: | |
577 | port->data[0] = b; | |
578 | port->state = STATE_2PARAM_1; | |
579 | break; | |
580 | case 0xf4: | |
581 | case 0xf5: | |
582 | port->state = STATE_UNKNOWN; | |
583 | break; | |
584 | case 0xf6: | |
585 | output_packet(urb, p0 | 0x05, 0xf6, 0, 0); | |
586 | port->state = STATE_UNKNOWN; | |
587 | break; | |
588 | case 0xf7: | |
589 | switch (port->state) { | |
590 | case STATE_SYSEX_0: | |
591 | output_packet(urb, p0 | 0x05, 0xf7, 0, 0); | |
592 | break; | |
593 | case STATE_SYSEX_1: | |
a509574e AG |
594 | output_packet(urb, p0 | 0x06, port->data[0], |
595 | 0xf7, 0); | |
1da177e4 LT |
596 | break; |
597 | case STATE_SYSEX_2: | |
a509574e AG |
598 | output_packet(urb, p0 | 0x07, port->data[0], |
599 | port->data[1], 0xf7); | |
1da177e4 LT |
600 | break; |
601 | } | |
602 | port->state = STATE_UNKNOWN; | |
603 | break; | |
604 | } | |
605 | } else if (b >= 0x80) { | |
606 | port->data[0] = b; | |
607 | if (b >= 0xc0 && b <= 0xdf) | |
608 | port->state = STATE_1PARAM; | |
609 | else | |
610 | port->state = STATE_2PARAM_1; | |
611 | } else { /* b < 0x80 */ | |
612 | switch (port->state) { | |
613 | case STATE_1PARAM: | |
614 | if (port->data[0] < 0xf0) { | |
615 | p0 |= port->data[0] >> 4; | |
616 | } else { | |
617 | p0 |= 0x02; | |
618 | port->state = STATE_UNKNOWN; | |
619 | } | |
620 | output_packet(urb, p0, port->data[0], b, 0); | |
621 | break; | |
622 | case STATE_2PARAM_1: | |
623 | port->data[1] = b; | |
624 | port->state = STATE_2PARAM_2; | |
625 | break; | |
626 | case STATE_2PARAM_2: | |
627 | if (port->data[0] < 0xf0) { | |
628 | p0 |= port->data[0] >> 4; | |
629 | port->state = STATE_2PARAM_1; | |
630 | } else { | |
631 | p0 |= 0x03; | |
632 | port->state = STATE_UNKNOWN; | |
633 | } | |
634 | output_packet(urb, p0, port->data[0], port->data[1], b); | |
635 | break; | |
636 | case STATE_SYSEX_0: | |
637 | port->data[0] = b; | |
638 | port->state = STATE_SYSEX_1; | |
639 | break; | |
640 | case STATE_SYSEX_1: | |
641 | port->data[1] = b; | |
642 | port->state = STATE_SYSEX_2; | |
643 | break; | |
644 | case STATE_SYSEX_2: | |
a509574e AG |
645 | output_packet(urb, p0 | 0x04, port->data[0], |
646 | port->data[1], b); | |
1da177e4 LT |
647 | port->state = STATE_SYSEX_0; |
648 | break; | |
649 | } | |
650 | } | |
651 | } | |
652 | ||
a509574e | 653 | static void snd_usbmidi_standard_output(struct snd_usb_midi_out_endpoint *ep, |
ed4affa5 | 654 | struct urb *urb) |
1da177e4 | 655 | { |
1da177e4 LT |
656 | int p; |
657 | ||
658 | /* FIXME: lower-numbered ports can starve higher-numbered ports */ | |
659 | for (p = 0; p < 0x10; ++p) { | |
a509574e | 660 | struct usbmidi_out_port *port = &ep->ports[p]; |
1da177e4 LT |
661 | if (!port->active) |
662 | continue; | |
663 | while (urb->transfer_buffer_length + 3 < ep->max_transfer) { | |
664 | uint8_t b; | |
665 | if (snd_rawmidi_transmit(port->substream, &b, 1) != 1) { | |
666 | port->active = 0; | |
667 | break; | |
668 | } | |
669 | snd_usbmidi_transmit_byte(port, b, urb); | |
670 | } | |
671 | } | |
672 | } | |
673 | ||
674 | static struct usb_protocol_ops snd_usbmidi_standard_ops = { | |
675 | .input = snd_usbmidi_standard_input, | |
676 | .output = snd_usbmidi_standard_output, | |
677 | .output_packet = snd_usbmidi_output_standard_packet, | |
678 | }; | |
679 | ||
680 | static struct usb_protocol_ops snd_usbmidi_midiman_ops = { | |
681 | .input = snd_usbmidi_midiman_input, | |
21af7d8c | 682 | .output = snd_usbmidi_standard_output, |
1da177e4 LT |
683 | .output_packet = snd_usbmidi_output_midiman_packet, |
684 | }; | |
685 | ||
d05cc104 CL |
686 | static struct usb_protocol_ops snd_usbmidi_maudio_broken_running_status_ops = { |
687 | .input = snd_usbmidi_maudio_broken_running_status_input, | |
21af7d8c | 688 | .output = snd_usbmidi_standard_output, |
d05cc104 CL |
689 | .output_packet = snd_usbmidi_output_standard_packet, |
690 | }; | |
691 | ||
61870aed CL |
692 | static struct usb_protocol_ops snd_usbmidi_cme_ops = { |
693 | .input = snd_usbmidi_cme_input, | |
694 | .output = snd_usbmidi_standard_output, | |
695 | .output_packet = snd_usbmidi_output_standard_packet, | |
696 | }; | |
697 | ||
a91e627e CL |
698 | static struct usb_protocol_ops snd_usbmidi_ch345_broken_sysex_ops = { |
699 | .input = ch345_broken_sysex_input, | |
700 | .output = snd_usbmidi_standard_output, | |
701 | .output_packet = snd_usbmidi_output_standard_packet, | |
702 | }; | |
703 | ||
4434ade8 KF |
704 | /* |
705 | * AKAI MPD16 protocol: | |
706 | * | |
707 | * For control port (endpoint 1): | |
708 | * ============================== | |
709 | * One or more chunks consisting of first byte of (0x10 | msg_len) and then a | |
710 | * SysEx message (msg_len=9 bytes long). | |
711 | * | |
712 | * For data port (endpoint 2): | |
713 | * =========================== | |
714 | * One or more chunks consisting of first byte of (0x20 | msg_len) and then a | |
715 | * MIDI message (msg_len bytes long) | |
716 | * | |
717 | * Messages sent: Active Sense, Note On, Poly Pressure, Control Change. | |
718 | */ | |
719 | static void snd_usbmidi_akai_input(struct snd_usb_midi_in_endpoint *ep, | |
720 | uint8_t *buffer, int buffer_length) | |
721 | { | |
722 | unsigned int pos = 0; | |
723 | unsigned int len = (unsigned int)buffer_length; | |
724 | while (pos < len) { | |
725 | unsigned int port = (buffer[pos] >> 4) - 1; | |
726 | unsigned int msg_len = buffer[pos] & 0x0f; | |
727 | pos++; | |
728 | if (pos + msg_len <= len && port < 2) | |
729 | snd_usbmidi_input_data(ep, 0, &buffer[pos], msg_len); | |
730 | pos += msg_len; | |
731 | } | |
732 | } | |
733 | ||
734 | #define MAX_AKAI_SYSEX_LEN 9 | |
735 | ||
736 | static void snd_usbmidi_akai_output(struct snd_usb_midi_out_endpoint *ep, | |
737 | struct urb *urb) | |
738 | { | |
739 | uint8_t *msg; | |
740 | int pos, end, count, buf_end; | |
741 | uint8_t tmp[MAX_AKAI_SYSEX_LEN]; | |
742 | struct snd_rawmidi_substream *substream = ep->ports[0].substream; | |
743 | ||
744 | if (!ep->ports[0].active) | |
745 | return; | |
746 | ||
747 | msg = urb->transfer_buffer + urb->transfer_buffer_length; | |
748 | buf_end = ep->max_transfer - MAX_AKAI_SYSEX_LEN - 1; | |
749 | ||
750 | /* only try adding more data when there's space for at least 1 SysEx */ | |
751 | while (urb->transfer_buffer_length < buf_end) { | |
752 | count = snd_rawmidi_transmit_peek(substream, | |
753 | tmp, MAX_AKAI_SYSEX_LEN); | |
754 | if (!count) { | |
755 | ep->ports[0].active = 0; | |
756 | return; | |
757 | } | |
758 | /* try to skip non-SysEx data */ | |
759 | for (pos = 0; pos < count && tmp[pos] != 0xF0; pos++) | |
760 | ; | |
761 | ||
762 | if (pos > 0) { | |
763 | snd_rawmidi_transmit_ack(substream, pos); | |
764 | continue; | |
765 | } | |
766 | ||
767 | /* look for the start or end marker */ | |
768 | for (end = 1; end < count && tmp[end] < 0xF0; end++) | |
769 | ; | |
770 | ||
771 | /* next SysEx started before the end of current one */ | |
772 | if (end < count && tmp[end] == 0xF0) { | |
773 | /* it's incomplete - drop it */ | |
774 | snd_rawmidi_transmit_ack(substream, end); | |
775 | continue; | |
776 | } | |
777 | /* SysEx complete */ | |
778 | if (end < count && tmp[end] == 0xF7) { | |
779 | /* queue it, ack it, and get the next one */ | |
780 | count = end + 1; | |
781 | msg[0] = 0x10 | count; | |
782 | memcpy(&msg[1], tmp, count); | |
783 | snd_rawmidi_transmit_ack(substream, count); | |
784 | urb->transfer_buffer_length += count + 1; | |
785 | msg += count + 1; | |
786 | continue; | |
787 | } | |
788 | /* less than 9 bytes and no end byte - wait for more */ | |
789 | if (count < MAX_AKAI_SYSEX_LEN) { | |
790 | ep->ports[0].active = 0; | |
791 | return; | |
792 | } | |
793 | /* 9 bytes and no end marker in sight - malformed, skip it */ | |
794 | snd_rawmidi_transmit_ack(substream, count); | |
795 | } | |
796 | } | |
797 | ||
798 | static struct usb_protocol_ops snd_usbmidi_akai_ops = { | |
799 | .input = snd_usbmidi_akai_input, | |
800 | .output = snd_usbmidi_akai_output, | |
801 | }; | |
802 | ||
1da177e4 LT |
803 | /* |
804 | * Novation USB MIDI protocol: number of data bytes is in the first byte | |
805 | * (when receiving) (+1!) or in the second byte (when sending); data begins | |
806 | * at the third byte. | |
807 | */ | |
808 | ||
a509574e AG |
809 | static void snd_usbmidi_novation_input(struct snd_usb_midi_in_endpoint *ep, |
810 | uint8_t *buffer, int buffer_length) | |
1da177e4 LT |
811 | { |
812 | if (buffer_length < 2 || !buffer[0] || buffer_length < buffer[0] + 1) | |
813 | return; | |
814 | snd_usbmidi_input_data(ep, 0, &buffer[2], buffer[0] - 1); | |
815 | } | |
816 | ||
a509574e | 817 | static void snd_usbmidi_novation_output(struct snd_usb_midi_out_endpoint *ep, |
ed4affa5 | 818 | struct urb *urb) |
1da177e4 | 819 | { |
a509574e | 820 | uint8_t *transfer_buffer; |
1da177e4 LT |
821 | int count; |
822 | ||
823 | if (!ep->ports[0].active) | |
824 | return; | |
ed4affa5 | 825 | transfer_buffer = urb->transfer_buffer; |
1da177e4 LT |
826 | count = snd_rawmidi_transmit(ep->ports[0].substream, |
827 | &transfer_buffer[2], | |
828 | ep->max_transfer - 2); | |
829 | if (count < 1) { | |
830 | ep->ports[0].active = 0; | |
831 | return; | |
832 | } | |
833 | transfer_buffer[0] = 0; | |
834 | transfer_buffer[1] = count; | |
ed4affa5 | 835 | urb->transfer_buffer_length = 2 + count; |
1da177e4 LT |
836 | } |
837 | ||
838 | static struct usb_protocol_ops snd_usbmidi_novation_ops = { | |
839 | .input = snd_usbmidi_novation_input, | |
840 | .output = snd_usbmidi_novation_output, | |
841 | }; | |
842 | ||
843 | /* | |
c7f57216 | 844 | * "raw" protocol: just move raw MIDI bytes from/to the endpoint |
1da177e4 LT |
845 | */ |
846 | ||
a509574e AG |
847 | static void snd_usbmidi_raw_input(struct snd_usb_midi_in_endpoint *ep, |
848 | uint8_t *buffer, int buffer_length) | |
1da177e4 LT |
849 | { |
850 | snd_usbmidi_input_data(ep, 0, buffer, buffer_length); | |
851 | } | |
852 | ||
a509574e | 853 | static void snd_usbmidi_raw_output(struct snd_usb_midi_out_endpoint *ep, |
ed4affa5 | 854 | struct urb *urb) |
1da177e4 LT |
855 | { |
856 | int count; | |
857 | ||
858 | if (!ep->ports[0].active) | |
859 | return; | |
860 | count = snd_rawmidi_transmit(ep->ports[0].substream, | |
ed4affa5 | 861 | urb->transfer_buffer, |
1da177e4 LT |
862 | ep->max_transfer); |
863 | if (count < 1) { | |
864 | ep->ports[0].active = 0; | |
865 | return; | |
866 | } | |
ed4affa5 | 867 | urb->transfer_buffer_length = count; |
1da177e4 LT |
868 | } |
869 | ||
6155aff8 CL |
870 | static struct usb_protocol_ops snd_usbmidi_raw_ops = { |
871 | .input = snd_usbmidi_raw_input, | |
872 | .output = snd_usbmidi_raw_output, | |
1da177e4 LT |
873 | }; |
874 | ||
1ef0e0a0 KA |
875 | /* |
876 | * FTDI protocol: raw MIDI bytes, but input packets have two modem status bytes. | |
877 | */ | |
878 | ||
a509574e AG |
879 | static void snd_usbmidi_ftdi_input(struct snd_usb_midi_in_endpoint *ep, |
880 | uint8_t *buffer, int buffer_length) | |
1ef0e0a0 KA |
881 | { |
882 | if (buffer_length > 2) | |
883 | snd_usbmidi_input_data(ep, 0, buffer + 2, buffer_length - 2); | |
884 | } | |
885 | ||
886 | static struct usb_protocol_ops snd_usbmidi_ftdi_ops = { | |
887 | .input = snd_usbmidi_ftdi_input, | |
888 | .output = snd_usbmidi_raw_output, | |
889 | }; | |
890 | ||
030a07e4 KW |
891 | static void snd_usbmidi_us122l_input(struct snd_usb_midi_in_endpoint *ep, |
892 | uint8_t *buffer, int buffer_length) | |
893 | { | |
894 | if (buffer_length != 9) | |
895 | return; | |
896 | buffer_length = 8; | |
897 | while (buffer_length && buffer[buffer_length - 1] == 0xFD) | |
898 | buffer_length--; | |
899 | if (buffer_length) | |
900 | snd_usbmidi_input_data(ep, 0, buffer, buffer_length); | |
901 | } | |
902 | ||
ed4affa5 CL |
903 | static void snd_usbmidi_us122l_output(struct snd_usb_midi_out_endpoint *ep, |
904 | struct urb *urb) | |
030a07e4 KW |
905 | { |
906 | int count; | |
907 | ||
908 | if (!ep->ports[0].active) | |
909 | return; | |
4f4e8f69 PZ |
910 | switch (snd_usb_get_speed(ep->umidi->dev)) { |
911 | case USB_SPEED_HIGH: | |
912 | case USB_SPEED_SUPER: | |
913 | count = 1; | |
914 | break; | |
915 | default: | |
916 | count = 2; | |
917 | } | |
030a07e4 | 918 | count = snd_rawmidi_transmit(ep->ports[0].substream, |
ed4affa5 | 919 | urb->transfer_buffer, |
030a07e4 KW |
920 | count); |
921 | if (count < 1) { | |
922 | ep->ports[0].active = 0; | |
923 | return; | |
924 | } | |
925 | ||
921eebdc KW |
926 | memset(urb->transfer_buffer + count, 0xFD, ep->max_transfer - count); |
927 | urb->transfer_buffer_length = ep->max_transfer; | |
030a07e4 KW |
928 | } |
929 | ||
930 | static struct usb_protocol_ops snd_usbmidi_122l_ops = { | |
931 | .input = snd_usbmidi_us122l_input, | |
932 | .output = snd_usbmidi_us122l_output, | |
933 | }; | |
934 | ||
1da177e4 LT |
935 | /* |
936 | * Emagic USB MIDI protocol: raw MIDI with "F5 xx" port switching. | |
937 | */ | |
938 | ||
a509574e | 939 | static void snd_usbmidi_emagic_init_out(struct snd_usb_midi_out_endpoint *ep) |
1da177e4 LT |
940 | { |
941 | static const u8 init_data[] = { | |
942 | /* initialization magic: "get version" */ | |
943 | 0xf0, | |
944 | 0x00, 0x20, 0x31, /* Emagic */ | |
945 | 0x64, /* Unitor8 */ | |
946 | 0x0b, /* version number request */ | |
947 | 0x00, /* command version */ | |
948 | 0x00, /* EEPROM, box 0 */ | |
949 | 0xf7 | |
950 | }; | |
951 | send_bulk_static_data(ep, init_data, sizeof(init_data)); | |
952 | /* while we're at it, pour on more magic */ | |
953 | send_bulk_static_data(ep, init_data, sizeof(init_data)); | |
954 | } | |
955 | ||
a509574e | 956 | static void snd_usbmidi_emagic_finish_out(struct snd_usb_midi_out_endpoint *ep) |
1da177e4 LT |
957 | { |
958 | static const u8 finish_data[] = { | |
959 | /* switch to patch mode with last preset */ | |
960 | 0xf0, | |
961 | 0x00, 0x20, 0x31, /* Emagic */ | |
962 | 0x64, /* Unitor8 */ | |
963 | 0x10, /* patch switch command */ | |
964 | 0x00, /* command version */ | |
965 | 0x7f, /* to all boxes */ | |
966 | 0x40, /* last preset in EEPROM */ | |
967 | 0xf7 | |
968 | }; | |
969 | send_bulk_static_data(ep, finish_data, sizeof(finish_data)); | |
970 | } | |
971 | ||
a509574e AG |
972 | static void snd_usbmidi_emagic_input(struct snd_usb_midi_in_endpoint *ep, |
973 | uint8_t *buffer, int buffer_length) | |
1da177e4 | 974 | { |
c347e9fc CL |
975 | int i; |
976 | ||
977 | /* FF indicates end of valid data */ | |
978 | for (i = 0; i < buffer_length; ++i) | |
979 | if (buffer[i] == 0xff) { | |
980 | buffer_length = i; | |
981 | break; | |
982 | } | |
1da177e4 LT |
983 | |
984 | /* handle F5 at end of last buffer */ | |
985 | if (ep->seen_f5) | |
986 | goto switch_port; | |
987 | ||
988 | while (buffer_length > 0) { | |
1da177e4 LT |
989 | /* determine size of data until next F5 */ |
990 | for (i = 0; i < buffer_length; ++i) | |
991 | if (buffer[i] == 0xf5) | |
992 | break; | |
993 | snd_usbmidi_input_data(ep, ep->current_port, buffer, i); | |
994 | buffer += i; | |
995 | buffer_length -= i; | |
996 | ||
997 | if (buffer_length <= 0) | |
998 | break; | |
999 | /* assert(buffer[0] == 0xf5); */ | |
1000 | ep->seen_f5 = 1; | |
1001 | ++buffer; | |
1002 | --buffer_length; | |
1003 | ||
1004 | switch_port: | |
1005 | if (buffer_length <= 0) | |
1006 | break; | |
1007 | if (buffer[0] < 0x80) { | |
1008 | ep->current_port = (buffer[0] - 1) & 15; | |
1009 | ++buffer; | |
1010 | --buffer_length; | |
1011 | } | |
1012 | ep->seen_f5 = 0; | |
1013 | } | |
1014 | } | |
1015 | ||
a509574e | 1016 | static void snd_usbmidi_emagic_output(struct snd_usb_midi_out_endpoint *ep, |
ed4affa5 | 1017 | struct urb *urb) |
1da177e4 LT |
1018 | { |
1019 | int port0 = ep->current_port; | |
a509574e | 1020 | uint8_t *buf = urb->transfer_buffer; |
1da177e4 LT |
1021 | int buf_free = ep->max_transfer; |
1022 | int length, i; | |
1023 | ||
1024 | for (i = 0; i < 0x10; ++i) { | |
1025 | /* round-robin, starting at the last current port */ | |
1026 | int portnum = (port0 + i) & 15; | |
a509574e | 1027 | struct usbmidi_out_port *port = &ep->ports[portnum]; |
1da177e4 LT |
1028 | |
1029 | if (!port->active) | |
1030 | continue; | |
1031 | if (snd_rawmidi_transmit_peek(port->substream, buf, 1) != 1) { | |
1032 | port->active = 0; | |
1033 | continue; | |
1034 | } | |
1035 | ||
1036 | if (portnum != ep->current_port) { | |
1037 | if (buf_free < 2) | |
1038 | break; | |
1039 | ep->current_port = portnum; | |
1040 | buf[0] = 0xf5; | |
1041 | buf[1] = (portnum + 1) & 15; | |
1042 | buf += 2; | |
1043 | buf_free -= 2; | |
1044 | } | |
1045 | ||
1046 | if (buf_free < 1) | |
1047 | break; | |
1048 | length = snd_rawmidi_transmit(port->substream, buf, buf_free); | |
1049 | if (length > 0) { | |
1050 | buf += length; | |
1051 | buf_free -= length; | |
1052 | if (buf_free < 1) | |
1053 | break; | |
1054 | } | |
1055 | } | |
c347e9fc CL |
1056 | if (buf_free < ep->max_transfer && buf_free > 0) { |
1057 | *buf = 0xff; | |
1058 | --buf_free; | |
1059 | } | |
ed4affa5 | 1060 | urb->transfer_buffer_length = ep->max_transfer - buf_free; |
1da177e4 LT |
1061 | } |
1062 | ||
1063 | static struct usb_protocol_ops snd_usbmidi_emagic_ops = { | |
1064 | .input = snd_usbmidi_emagic_input, | |
1065 | .output = snd_usbmidi_emagic_output, | |
1066 | .init_out_endpoint = snd_usbmidi_emagic_init_out, | |
1067 | .finish_out_endpoint = snd_usbmidi_emagic_finish_out, | |
1068 | }; | |
1069 | ||
1070 | ||
a509574e | 1071 | static void update_roland_altsetting(struct snd_usb_midi *umidi) |
96f61d9a CL |
1072 | { |
1073 | struct usb_interface *intf; | |
1074 | struct usb_host_interface *hostif; | |
1075 | struct usb_interface_descriptor *intfd; | |
1076 | int is_light_load; | |
1077 | ||
1078 | intf = umidi->iface; | |
1079 | is_light_load = intf->cur_altsetting != intf->altsetting; | |
1080 | if (umidi->roland_load_ctl->private_value == is_light_load) | |
1081 | return; | |
1082 | hostif = &intf->altsetting[umidi->roland_load_ctl->private_value]; | |
1083 | intfd = get_iface_desc(hostif); | |
1084 | snd_usbmidi_input_stop(&umidi->list); | |
d82af9f9 | 1085 | usb_set_interface(umidi->dev, intfd->bInterfaceNumber, |
96f61d9a CL |
1086 | intfd->bAlternateSetting); |
1087 | snd_usbmidi_input_start(&umidi->list); | |
1088 | } | |
1089 | ||
f5f16541 TI |
1090 | static int substream_open(struct snd_rawmidi_substream *substream, int dir, |
1091 | int open) | |
96f61d9a | 1092 | { |
a509574e | 1093 | struct snd_usb_midi *umidi = substream->rmidi->private_data; |
96f61d9a CL |
1094 | struct snd_kcontrol *ctl; |
1095 | ||
59866da9 TI |
1096 | down_read(&umidi->disc_rwsem); |
1097 | if (umidi->disconnected) { | |
1098 | up_read(&umidi->disc_rwsem); | |
f5f16541 | 1099 | return open ? -ENODEV : 0; |
59866da9 TI |
1100 | } |
1101 | ||
96f61d9a CL |
1102 | mutex_lock(&umidi->mutex); |
1103 | if (open) { | |
f5f16541 | 1104 | if (!umidi->opened[0] && !umidi->opened[1]) { |
f5f16541 TI |
1105 | if (umidi->roland_load_ctl) { |
1106 | ctl = umidi->roland_load_ctl; | |
a509574e AG |
1107 | ctl->vd[0].access |= |
1108 | SNDRV_CTL_ELEM_ACCESS_INACTIVE; | |
f5f16541 | 1109 | snd_ctl_notify(umidi->card, |
96f61d9a | 1110 | SNDRV_CTL_EVENT_MASK_INFO, &ctl->id); |
f5f16541 TI |
1111 | update_roland_altsetting(umidi); |
1112 | } | |
96f61d9a | 1113 | } |
f5f16541 TI |
1114 | umidi->opened[dir]++; |
1115 | if (umidi->opened[1]) | |
1116 | snd_usbmidi_input_start(&umidi->list); | |
96f61d9a | 1117 | } else { |
f5f16541 TI |
1118 | umidi->opened[dir]--; |
1119 | if (!umidi->opened[1]) | |
1120 | snd_usbmidi_input_stop(&umidi->list); | |
1121 | if (!umidi->opened[0] && !umidi->opened[1]) { | |
1122 | if (umidi->roland_load_ctl) { | |
1123 | ctl = umidi->roland_load_ctl; | |
a509574e AG |
1124 | ctl->vd[0].access &= |
1125 | ~SNDRV_CTL_ELEM_ACCESS_INACTIVE; | |
f5f16541 | 1126 | snd_ctl_notify(umidi->card, |
96f61d9a | 1127 | SNDRV_CTL_EVENT_MASK_INFO, &ctl->id); |
f5f16541 | 1128 | } |
96f61d9a CL |
1129 | } |
1130 | } | |
1131 | mutex_unlock(&umidi->mutex); | |
59866da9 | 1132 | up_read(&umidi->disc_rwsem); |
f5f16541 | 1133 | return 0; |
96f61d9a CL |
1134 | } |
1135 | ||
86e07d34 | 1136 | static int snd_usbmidi_output_open(struct snd_rawmidi_substream *substream) |
1da177e4 | 1137 | { |
a509574e AG |
1138 | struct snd_usb_midi *umidi = substream->rmidi->private_data; |
1139 | struct usbmidi_out_port *port = NULL; | |
1da177e4 LT |
1140 | int i, j; |
1141 | ||
1142 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) | |
1143 | if (umidi->endpoints[i].out) | |
1144 | for (j = 0; j < 0x10; ++j) | |
1145 | if (umidi->endpoints[i].out->ports[j].substream == substream) { | |
1146 | port = &umidi->endpoints[i].out->ports[j]; | |
1147 | break; | |
1148 | } | |
1149 | if (!port) { | |
1150 | snd_BUG(); | |
1151 | return -ENXIO; | |
1152 | } | |
59866da9 | 1153 | |
1da177e4 LT |
1154 | substream->runtime->private_data = port; |
1155 | port->state = STATE_UNKNOWN; | |
f5f16541 | 1156 | return substream_open(substream, 0, 1); |
1da177e4 LT |
1157 | } |
1158 | ||
86e07d34 | 1159 | static int snd_usbmidi_output_close(struct snd_rawmidi_substream *substream) |
1da177e4 | 1160 | { |
f5f16541 | 1161 | return substream_open(substream, 0, 0); |
1da177e4 LT |
1162 | } |
1163 | ||
a509574e AG |
1164 | static void snd_usbmidi_output_trigger(struct snd_rawmidi_substream *substream, |
1165 | int up) | |
1da177e4 | 1166 | { |
a509574e AG |
1167 | struct usbmidi_out_port *port = |
1168 | (struct usbmidi_out_port *)substream->runtime->private_data; | |
1da177e4 LT |
1169 | |
1170 | port->active = up; | |
1171 | if (up) { | |
d82af9f9 | 1172 | if (port->ep->umidi->disconnected) { |
1da177e4 LT |
1173 | /* gobble up remaining bytes to prevent wait in |
1174 | * snd_rawmidi_drain_output */ | |
1175 | while (!snd_rawmidi_transmit_empty(substream)) | |
1176 | snd_rawmidi_transmit_ack(substream, 1); | |
1177 | return; | |
1178 | } | |
1f04128a | 1179 | tasklet_schedule(&port->ep->tasklet); |
1da177e4 LT |
1180 | } |
1181 | } | |
1182 | ||
a65dd997 CL |
1183 | static void snd_usbmidi_output_drain(struct snd_rawmidi_substream *substream) |
1184 | { | |
a509574e | 1185 | struct usbmidi_out_port *port = substream->runtime->private_data; |
a65dd997 CL |
1186 | struct snd_usb_midi_out_endpoint *ep = port->ep; |
1187 | unsigned int drain_urbs; | |
1188 | DEFINE_WAIT(wait); | |
1189 | long timeout = msecs_to_jiffies(50); | |
1190 | ||
29aac005 TI |
1191 | if (ep->umidi->disconnected) |
1192 | return; | |
a65dd997 CL |
1193 | /* |
1194 | * The substream buffer is empty, but some data might still be in the | |
1195 | * currently active URBs, so we have to wait for those to complete. | |
1196 | */ | |
1197 | spin_lock_irq(&ep->buffer_lock); | |
1198 | drain_urbs = ep->active_urbs; | |
1199 | if (drain_urbs) { | |
1200 | ep->drain_urbs |= drain_urbs; | |
1201 | do { | |
1202 | prepare_to_wait(&ep->drain_wait, &wait, | |
1203 | TASK_UNINTERRUPTIBLE); | |
1204 | spin_unlock_irq(&ep->buffer_lock); | |
1205 | timeout = schedule_timeout(timeout); | |
1206 | spin_lock_irq(&ep->buffer_lock); | |
1207 | drain_urbs &= ep->drain_urbs; | |
1208 | } while (drain_urbs && timeout); | |
1209 | finish_wait(&ep->drain_wait, &wait); | |
1210 | } | |
1211 | spin_unlock_irq(&ep->buffer_lock); | |
1212 | } | |
1213 | ||
86e07d34 | 1214 | static int snd_usbmidi_input_open(struct snd_rawmidi_substream *substream) |
1da177e4 | 1215 | { |
f5f16541 | 1216 | return substream_open(substream, 1, 1); |
1da177e4 LT |
1217 | } |
1218 | ||
86e07d34 | 1219 | static int snd_usbmidi_input_close(struct snd_rawmidi_substream *substream) |
1da177e4 | 1220 | { |
f5f16541 | 1221 | return substream_open(substream, 1, 0); |
1da177e4 LT |
1222 | } |
1223 | ||
a509574e AG |
1224 | static void snd_usbmidi_input_trigger(struct snd_rawmidi_substream *substream, |
1225 | int up) | |
1da177e4 | 1226 | { |
a509574e | 1227 | struct snd_usb_midi *umidi = substream->rmidi->private_data; |
1da177e4 LT |
1228 | |
1229 | if (up) | |
1230 | set_bit(substream->number, &umidi->input_triggered); | |
1231 | else | |
1232 | clear_bit(substream->number, &umidi->input_triggered); | |
1233 | } | |
1234 | ||
86e07d34 | 1235 | static struct snd_rawmidi_ops snd_usbmidi_output_ops = { |
1da177e4 LT |
1236 | .open = snd_usbmidi_output_open, |
1237 | .close = snd_usbmidi_output_close, | |
1238 | .trigger = snd_usbmidi_output_trigger, | |
a65dd997 | 1239 | .drain = snd_usbmidi_output_drain, |
1da177e4 LT |
1240 | }; |
1241 | ||
86e07d34 | 1242 | static struct snd_rawmidi_ops snd_usbmidi_input_ops = { |
1da177e4 LT |
1243 | .open = snd_usbmidi_input_open, |
1244 | .close = snd_usbmidi_input_close, | |
1245 | .trigger = snd_usbmidi_input_trigger | |
1246 | }; | |
1247 | ||
ed4affa5 CL |
1248 | static void free_urb_and_buffer(struct snd_usb_midi *umidi, struct urb *urb, |
1249 | unsigned int buffer_length) | |
1250 | { | |
997ea58e DM |
1251 | usb_free_coherent(umidi->dev, buffer_length, |
1252 | urb->transfer_buffer, urb->transfer_dma); | |
ed4affa5 CL |
1253 | usb_free_urb(urb); |
1254 | } | |
1255 | ||
1da177e4 LT |
1256 | /* |
1257 | * Frees an input endpoint. | |
1258 | * May be called when ep hasn't been initialized completely. | |
1259 | */ | |
a509574e | 1260 | static void snd_usbmidi_in_endpoint_delete(struct snd_usb_midi_in_endpoint *ep) |
1da177e4 | 1261 | { |
4773d1fb CL |
1262 | unsigned int i; |
1263 | ||
ed4affa5 CL |
1264 | for (i = 0; i < INPUT_URBS; ++i) |
1265 | if (ep->urbs[i]) | |
1266 | free_urb_and_buffer(ep->umidi, ep->urbs[i], | |
1267 | ep->urbs[i]->transfer_buffer_length); | |
1da177e4 LT |
1268 | kfree(ep); |
1269 | } | |
1270 | ||
1271 | /* | |
1272 | * Creates an input endpoint. | |
1273 | */ | |
a509574e AG |
1274 | static int snd_usbmidi_in_endpoint_create(struct snd_usb_midi *umidi, |
1275 | struct snd_usb_midi_endpoint_info *ep_info, | |
1276 | struct snd_usb_midi_endpoint *rep) | |
1da177e4 | 1277 | { |
a509574e AG |
1278 | struct snd_usb_midi_in_endpoint *ep; |
1279 | void *buffer; | |
1da177e4 LT |
1280 | unsigned int pipe; |
1281 | int length; | |
4773d1fb | 1282 | unsigned int i; |
1da177e4 LT |
1283 | |
1284 | rep->in = NULL; | |
561b220a | 1285 | ep = kzalloc(sizeof(*ep), GFP_KERNEL); |
1da177e4 LT |
1286 | if (!ep) |
1287 | return -ENOMEM; | |
1288 | ep->umidi = umidi; | |
1289 | ||
4773d1fb CL |
1290 | for (i = 0; i < INPUT_URBS; ++i) { |
1291 | ep->urbs[i] = usb_alloc_urb(0, GFP_KERNEL); | |
1292 | if (!ep->urbs[i]) { | |
1293 | snd_usbmidi_in_endpoint_delete(ep); | |
1294 | return -ENOMEM; | |
1295 | } | |
1da177e4 LT |
1296 | } |
1297 | if (ep_info->in_interval) | |
d82af9f9 | 1298 | pipe = usb_rcvintpipe(umidi->dev, ep_info->in_ep); |
1da177e4 | 1299 | else |
d82af9f9 CL |
1300 | pipe = usb_rcvbulkpipe(umidi->dev, ep_info->in_ep); |
1301 | length = usb_maxpacket(umidi->dev, pipe, 0); | |
4773d1fb | 1302 | for (i = 0; i < INPUT_URBS; ++i) { |
997ea58e DM |
1303 | buffer = usb_alloc_coherent(umidi->dev, length, GFP_KERNEL, |
1304 | &ep->urbs[i]->transfer_dma); | |
4773d1fb CL |
1305 | if (!buffer) { |
1306 | snd_usbmidi_in_endpoint_delete(ep); | |
1307 | return -ENOMEM; | |
1308 | } | |
1309 | if (ep_info->in_interval) | |
d82af9f9 | 1310 | usb_fill_int_urb(ep->urbs[i], umidi->dev, |
4773d1fb CL |
1311 | pipe, buffer, length, |
1312 | snd_usbmidi_in_urb_complete, | |
1313 | ep, ep_info->in_interval); | |
1314 | else | |
d82af9f9 | 1315 | usb_fill_bulk_urb(ep->urbs[i], umidi->dev, |
4773d1fb CL |
1316 | pipe, buffer, length, |
1317 | snd_usbmidi_in_urb_complete, ep); | |
1318 | ep->urbs[i]->transfer_flags = URB_NO_TRANSFER_DMA_MAP; | |
1da177e4 | 1319 | } |
1da177e4 LT |
1320 | |
1321 | rep->in = ep; | |
1322 | return 0; | |
1323 | } | |
1324 | ||
1da177e4 LT |
1325 | /* |
1326 | * Frees an output endpoint. | |
1327 | * May be called when ep hasn't been initialized completely. | |
1328 | */ | |
29aac005 | 1329 | static void snd_usbmidi_out_endpoint_clear(struct snd_usb_midi_out_endpoint *ep) |
1da177e4 | 1330 | { |
ed4affa5 CL |
1331 | unsigned int i; |
1332 | ||
1333 | for (i = 0; i < OUTPUT_URBS; ++i) | |
29aac005 | 1334 | if (ep->urbs[i].urb) { |
ed4affa5 CL |
1335 | free_urb_and_buffer(ep->umidi, ep->urbs[i].urb, |
1336 | ep->max_transfer); | |
29aac005 TI |
1337 | ep->urbs[i].urb = NULL; |
1338 | } | |
1339 | } | |
1340 | ||
1341 | static void snd_usbmidi_out_endpoint_delete(struct snd_usb_midi_out_endpoint *ep) | |
1342 | { | |
1343 | snd_usbmidi_out_endpoint_clear(ep); | |
1da177e4 LT |
1344 | kfree(ep); |
1345 | } | |
1346 | ||
1347 | /* | |
1348 | * Creates an output endpoint, and initializes output ports. | |
1349 | */ | |
a509574e AG |
1350 | static int snd_usbmidi_out_endpoint_create(struct snd_usb_midi *umidi, |
1351 | struct snd_usb_midi_endpoint_info *ep_info, | |
1352 | struct snd_usb_midi_endpoint *rep) | |
1da177e4 | 1353 | { |
a509574e | 1354 | struct snd_usb_midi_out_endpoint *ep; |
ed4affa5 | 1355 | unsigned int i; |
1da177e4 | 1356 | unsigned int pipe; |
a509574e | 1357 | void *buffer; |
1da177e4 LT |
1358 | |
1359 | rep->out = NULL; | |
561b220a | 1360 | ep = kzalloc(sizeof(*ep), GFP_KERNEL); |
1da177e4 LT |
1361 | if (!ep) |
1362 | return -ENOMEM; | |
1363 | ep->umidi = umidi; | |
1364 | ||
ed4affa5 CL |
1365 | for (i = 0; i < OUTPUT_URBS; ++i) { |
1366 | ep->urbs[i].urb = usb_alloc_urb(0, GFP_KERNEL); | |
1367 | if (!ep->urbs[i].urb) { | |
1368 | snd_usbmidi_out_endpoint_delete(ep); | |
1369 | return -ENOMEM; | |
1370 | } | |
1371 | ep->urbs[i].ep = ep; | |
1da177e4 | 1372 | } |
a6a712ae | 1373 | if (ep_info->out_interval) |
d82af9f9 | 1374 | pipe = usb_sndintpipe(umidi->dev, ep_info->out_ep); |
a6a712ae | 1375 | else |
d82af9f9 | 1376 | pipe = usb_sndbulkpipe(umidi->dev, ep_info->out_ep); |
f167e1d0 CL |
1377 | switch (umidi->usb_id) { |
1378 | default: | |
d82af9f9 | 1379 | ep->max_transfer = usb_maxpacket(umidi->dev, pipe, 1); |
f167e1d0 CL |
1380 | break; |
1381 | /* | |
1382 | * Various chips declare a packet size larger than 4 bytes, but | |
1383 | * do not actually work with larger packets: | |
1384 | */ | |
98d362be | 1385 | case USB_ID(0x0a67, 0x5011): /* Medeli DD305 */ |
f167e1d0 CL |
1386 | case USB_ID(0x0a92, 0x1020): /* ESI M4U */ |
1387 | case USB_ID(0x1430, 0x474b): /* RedOctane GH MIDI INTERFACE */ | |
1388 | case USB_ID(0x15ca, 0x0101): /* Textech USB Midi Cable */ | |
1389 | case USB_ID(0x15ca, 0x1806): /* Textech USB Midi Cable */ | |
1390 | case USB_ID(0x1a86, 0x752d): /* QinHeng CH345 "USB2.0-MIDI" */ | |
49c039f0 | 1391 | case USB_ID(0xfc08, 0x0101): /* Unknown vendor Cable */ |
f167e1d0 CL |
1392 | ep->max_transfer = 4; |
1393 | break; | |
921eebdc KW |
1394 | /* |
1395 | * Some devices only work with 9 bytes packet size: | |
1396 | */ | |
1397 | case USB_ID(0x0644, 0x800E): /* Tascam US-122L */ | |
1398 | case USB_ID(0x0644, 0x800F): /* Tascam US-144 */ | |
1399 | ep->max_transfer = 9; | |
1400 | break; | |
f167e1d0 | 1401 | } |
ed4affa5 | 1402 | for (i = 0; i < OUTPUT_URBS; ++i) { |
997ea58e DM |
1403 | buffer = usb_alloc_coherent(umidi->dev, |
1404 | ep->max_transfer, GFP_KERNEL, | |
1405 | &ep->urbs[i].urb->transfer_dma); | |
ed4affa5 CL |
1406 | if (!buffer) { |
1407 | snd_usbmidi_out_endpoint_delete(ep); | |
1408 | return -ENOMEM; | |
1409 | } | |
1410 | if (ep_info->out_interval) | |
d82af9f9 | 1411 | usb_fill_int_urb(ep->urbs[i].urb, umidi->dev, |
ed4affa5 CL |
1412 | pipe, buffer, ep->max_transfer, |
1413 | snd_usbmidi_out_urb_complete, | |
1414 | &ep->urbs[i], ep_info->out_interval); | |
1415 | else | |
d82af9f9 | 1416 | usb_fill_bulk_urb(ep->urbs[i].urb, umidi->dev, |
ed4affa5 CL |
1417 | pipe, buffer, ep->max_transfer, |
1418 | snd_usbmidi_out_urb_complete, | |
1419 | &ep->urbs[i]); | |
1420 | ep->urbs[i].urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP; | |
1da177e4 | 1421 | } |
1da177e4 LT |
1422 | |
1423 | spin_lock_init(&ep->buffer_lock); | |
1424 | tasklet_init(&ep->tasklet, snd_usbmidi_out_tasklet, (unsigned long)ep); | |
a65dd997 | 1425 | init_waitqueue_head(&ep->drain_wait); |
1da177e4 LT |
1426 | |
1427 | for (i = 0; i < 0x10; ++i) | |
1428 | if (ep_info->out_cables & (1 << i)) { | |
1429 | ep->ports[i].ep = ep; | |
1430 | ep->ports[i].cable = i << 4; | |
1431 | } | |
1432 | ||
1433 | if (umidi->usb_protocol_ops->init_out_endpoint) | |
1434 | umidi->usb_protocol_ops->init_out_endpoint(ep); | |
1435 | ||
1436 | rep->out = ep; | |
1437 | return 0; | |
1438 | } | |
1439 | ||
1440 | /* | |
1441 | * Frees everything. | |
1442 | */ | |
a509574e | 1443 | static void snd_usbmidi_free(struct snd_usb_midi *umidi) |
1da177e4 LT |
1444 | { |
1445 | int i; | |
1446 | ||
1447 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { | |
a509574e | 1448 | struct snd_usb_midi_endpoint *ep = &umidi->endpoints[i]; |
1da177e4 LT |
1449 | if (ep->out) |
1450 | snd_usbmidi_out_endpoint_delete(ep->out); | |
1451 | if (ep->in) | |
1452 | snd_usbmidi_in_endpoint_delete(ep->in); | |
1453 | } | |
96f61d9a | 1454 | mutex_destroy(&umidi->mutex); |
1da177e4 LT |
1455 | kfree(umidi); |
1456 | } | |
1457 | ||
1458 | /* | |
1459 | * Unlinks all URBs (must be done before the usb_device is deleted). | |
1460 | */ | |
a509574e | 1461 | void snd_usbmidi_disconnect(struct list_head *p) |
1da177e4 | 1462 | { |
a509574e | 1463 | struct snd_usb_midi *umidi; |
4773d1fb | 1464 | unsigned int i, j; |
1da177e4 | 1465 | |
86e07d34 | 1466 | umidi = list_entry(p, struct snd_usb_midi, list); |
c0792e00 TI |
1467 | /* |
1468 | * an URB's completion handler may start the timer and | |
1469 | * a timer may submit an URB. To reliably break the cycle | |
1470 | * a flag under lock must be used | |
1471 | */ | |
59866da9 | 1472 | down_write(&umidi->disc_rwsem); |
c0792e00 TI |
1473 | spin_lock_irq(&umidi->disc_lock); |
1474 | umidi->disconnected = 1; | |
1475 | spin_unlock_irq(&umidi->disc_lock); | |
59866da9 TI |
1476 | up_write(&umidi->disc_rwsem); |
1477 | ||
1da177e4 | 1478 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { |
a509574e | 1479 | struct snd_usb_midi_endpoint *ep = &umidi->endpoints[i]; |
c8846970 CL |
1480 | if (ep->out) |
1481 | tasklet_kill(&ep->out->tasklet); | |
ed4affa5 CL |
1482 | if (ep->out) { |
1483 | for (j = 0; j < OUTPUT_URBS; ++j) | |
1484 | usb_kill_urb(ep->out->urbs[j].urb); | |
1da177e4 LT |
1485 | if (umidi->usb_protocol_ops->finish_out_endpoint) |
1486 | umidi->usb_protocol_ops->finish_out_endpoint(ep->out); | |
29aac005 TI |
1487 | ep->out->active_urbs = 0; |
1488 | if (ep->out->drain_urbs) { | |
1489 | ep->out->drain_urbs = 0; | |
1490 | wake_up(&ep->out->drain_wait); | |
1491 | } | |
1da177e4 | 1492 | } |
f5e135af | 1493 | if (ep->in) |
4773d1fb CL |
1494 | for (j = 0; j < INPUT_URBS; ++j) |
1495 | usb_kill_urb(ep->in->urbs[j]); | |
7a17daae | 1496 | /* free endpoints here; later call can result in Oops */ |
29aac005 TI |
1497 | if (ep->out) |
1498 | snd_usbmidi_out_endpoint_clear(ep->out); | |
7a17daae TI |
1499 | if (ep->in) { |
1500 | snd_usbmidi_in_endpoint_delete(ep->in); | |
1501 | ep->in = NULL; | |
1502 | } | |
1da177e4 | 1503 | } |
c0792e00 | 1504 | del_timer_sync(&umidi->error_timer); |
1da177e4 | 1505 | } |
ed136aca | 1506 | EXPORT_SYMBOL(snd_usbmidi_disconnect); |
1da177e4 | 1507 | |
86e07d34 | 1508 | static void snd_usbmidi_rawmidi_free(struct snd_rawmidi *rmidi) |
1da177e4 | 1509 | { |
a509574e | 1510 | struct snd_usb_midi *umidi = rmidi->private_data; |
1da177e4 LT |
1511 | snd_usbmidi_free(umidi); |
1512 | } | |
1513 | ||
a509574e AG |
1514 | static struct snd_rawmidi_substream *snd_usbmidi_find_substream(struct snd_usb_midi *umidi, |
1515 | int stream, | |
1516 | int number) | |
1da177e4 | 1517 | { |
88766f04 | 1518 | struct snd_rawmidi_substream *substream; |
1da177e4 | 1519 | |
a509574e AG |
1520 | list_for_each_entry(substream, &umidi->rmidi->streams[stream].substreams, |
1521 | list) { | |
1da177e4 LT |
1522 | if (substream->number == number) |
1523 | return substream; | |
1524 | } | |
1525 | return NULL; | |
1526 | } | |
1527 | ||
1528 | /* | |
1529 | * This list specifies names for ports that do not fit into the standard | |
1530 | * "(product) MIDI (n)" schema because they aren't external MIDI ports, | |
1531 | * such as internal control or synthesizer ports. | |
1532 | */ | |
a7b928ac | 1533 | static struct port_info { |
27d10f56 | 1534 | u32 id; |
a7b928ac CL |
1535 | short int port; |
1536 | short int voices; | |
1537 | const char *name; | |
1538 | unsigned int seq_flags; | |
1539 | } snd_usbmidi_port_info[] = { | |
1540 | #define PORT_INFO(vendor, product, num, name_, voices_, flags) \ | |
1541 | { .id = USB_ID(vendor, product), \ | |
1542 | .port = num, .voices = voices_, \ | |
1543 | .name = name_, .seq_flags = flags } | |
1544 | #define EXTERNAL_PORT(vendor, product, num, name) \ | |
1545 | PORT_INFO(vendor, product, num, name, 0, \ | |
1546 | SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | \ | |
1547 | SNDRV_SEQ_PORT_TYPE_HARDWARE | \ | |
1548 | SNDRV_SEQ_PORT_TYPE_PORT) | |
1549 | #define CONTROL_PORT(vendor, product, num, name) \ | |
1550 | PORT_INFO(vendor, product, num, name, 0, \ | |
1551 | SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | \ | |
1552 | SNDRV_SEQ_PORT_TYPE_HARDWARE) | |
49f4b4d1 CL |
1553 | #define GM_SYNTH_PORT(vendor, product, num, name, voices) \ |
1554 | PORT_INFO(vendor, product, num, name, voices, \ | |
1555 | SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | \ | |
1556 | SNDRV_SEQ_PORT_TYPE_MIDI_GM | \ | |
1557 | SNDRV_SEQ_PORT_TYPE_HARDWARE | \ | |
1558 | SNDRV_SEQ_PORT_TYPE_SYNTHESIZER) | |
a7b928ac CL |
1559 | #define ROLAND_SYNTH_PORT(vendor, product, num, name, voices) \ |
1560 | PORT_INFO(vendor, product, num, name, voices, \ | |
1561 | SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | \ | |
1562 | SNDRV_SEQ_PORT_TYPE_MIDI_GM | \ | |
1563 | SNDRV_SEQ_PORT_TYPE_MIDI_GM2 | \ | |
1564 | SNDRV_SEQ_PORT_TYPE_MIDI_GS | \ | |
1565 | SNDRV_SEQ_PORT_TYPE_MIDI_XG | \ | |
1566 | SNDRV_SEQ_PORT_TYPE_HARDWARE | \ | |
1567 | SNDRV_SEQ_PORT_TYPE_SYNTHESIZER) | |
1568 | #define SOUNDCANVAS_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_MIDI_MT32 | \ | |
1576 | SNDRV_SEQ_PORT_TYPE_HARDWARE | \ | |
1577 | SNDRV_SEQ_PORT_TYPE_SYNTHESIZER) | |
49f4b4d1 CL |
1578 | /* Yamaha MOTIF XF */ |
1579 | GM_SYNTH_PORT(0x0499, 0x105c, 0, "%s Tone Generator", 128), | |
1580 | CONTROL_PORT(0x0499, 0x105c, 1, "%s Remote Control"), | |
1581 | EXTERNAL_PORT(0x0499, 0x105c, 2, "%s Thru"), | |
1582 | CONTROL_PORT(0x0499, 0x105c, 3, "%s Editor"), | |
1da177e4 | 1583 | /* Roland UA-100 */ |
a7b928ac | 1584 | CONTROL_PORT(0x0582, 0x0000, 2, "%s Control"), |
1da177e4 | 1585 | /* Roland SC-8850 */ |
a7b928ac CL |
1586 | SOUNDCANVAS_PORT(0x0582, 0x0003, 0, "%s Part A", 128), |
1587 | SOUNDCANVAS_PORT(0x0582, 0x0003, 1, "%s Part B", 128), | |
1588 | SOUNDCANVAS_PORT(0x0582, 0x0003, 2, "%s Part C", 128), | |
1589 | SOUNDCANVAS_PORT(0x0582, 0x0003, 3, "%s Part D", 128), | |
1590 | EXTERNAL_PORT(0x0582, 0x0003, 4, "%s MIDI 1"), | |
1591 | EXTERNAL_PORT(0x0582, 0x0003, 5, "%s MIDI 2"), | |
1da177e4 | 1592 | /* Roland U-8 */ |
a7b928ac CL |
1593 | EXTERNAL_PORT(0x0582, 0x0004, 0, "%s MIDI"), |
1594 | CONTROL_PORT(0x0582, 0x0004, 1, "%s Control"), | |
1da177e4 | 1595 | /* Roland SC-8820 */ |
a7b928ac CL |
1596 | SOUNDCANVAS_PORT(0x0582, 0x0007, 0, "%s Part A", 64), |
1597 | SOUNDCANVAS_PORT(0x0582, 0x0007, 1, "%s Part B", 64), | |
1598 | EXTERNAL_PORT(0x0582, 0x0007, 2, "%s MIDI"), | |
1da177e4 | 1599 | /* Roland SK-500 */ |
a7b928ac CL |
1600 | SOUNDCANVAS_PORT(0x0582, 0x000b, 0, "%s Part A", 64), |
1601 | SOUNDCANVAS_PORT(0x0582, 0x000b, 1, "%s Part B", 64), | |
1602 | EXTERNAL_PORT(0x0582, 0x000b, 2, "%s MIDI"), | |
1da177e4 | 1603 | /* Roland SC-D70 */ |
a7b928ac CL |
1604 | SOUNDCANVAS_PORT(0x0582, 0x000c, 0, "%s Part A", 64), |
1605 | SOUNDCANVAS_PORT(0x0582, 0x000c, 1, "%s Part B", 64), | |
1606 | EXTERNAL_PORT(0x0582, 0x000c, 2, "%s MIDI"), | |
1da177e4 | 1607 | /* Edirol UM-880 */ |
a7b928ac | 1608 | CONTROL_PORT(0x0582, 0x0014, 8, "%s Control"), |
1da177e4 | 1609 | /* Edirol SD-90 */ |
a7b928ac CL |
1610 | ROLAND_SYNTH_PORT(0x0582, 0x0016, 0, "%s Part A", 128), |
1611 | ROLAND_SYNTH_PORT(0x0582, 0x0016, 1, "%s Part B", 128), | |
1612 | EXTERNAL_PORT(0x0582, 0x0016, 2, "%s MIDI 1"), | |
1613 | EXTERNAL_PORT(0x0582, 0x0016, 3, "%s MIDI 2"), | |
1da177e4 | 1614 | /* Edirol UM-550 */ |
a7b928ac | 1615 | CONTROL_PORT(0x0582, 0x0023, 5, "%s Control"), |
1da177e4 | 1616 | /* Edirol SD-20 */ |
a7b928ac CL |
1617 | ROLAND_SYNTH_PORT(0x0582, 0x0027, 0, "%s Part A", 64), |
1618 | ROLAND_SYNTH_PORT(0x0582, 0x0027, 1, "%s Part B", 64), | |
1619 | EXTERNAL_PORT(0x0582, 0x0027, 2, "%s MIDI"), | |
1da177e4 | 1620 | /* Edirol SD-80 */ |
a7b928ac CL |
1621 | ROLAND_SYNTH_PORT(0x0582, 0x0029, 0, "%s Part A", 128), |
1622 | ROLAND_SYNTH_PORT(0x0582, 0x0029, 1, "%s Part B", 128), | |
1623 | EXTERNAL_PORT(0x0582, 0x0029, 2, "%s MIDI 1"), | |
1624 | EXTERNAL_PORT(0x0582, 0x0029, 3, "%s MIDI 2"), | |
1da177e4 | 1625 | /* Edirol UA-700 */ |
a7b928ac CL |
1626 | EXTERNAL_PORT(0x0582, 0x002b, 0, "%s MIDI"), |
1627 | CONTROL_PORT(0x0582, 0x002b, 1, "%s Control"), | |
1da177e4 | 1628 | /* Roland VariOS */ |
a7b928ac CL |
1629 | EXTERNAL_PORT(0x0582, 0x002f, 0, "%s MIDI"), |
1630 | EXTERNAL_PORT(0x0582, 0x002f, 1, "%s External MIDI"), | |
1631 | EXTERNAL_PORT(0x0582, 0x002f, 2, "%s Sync"), | |
1da177e4 | 1632 | /* Edirol PCR */ |
a7b928ac CL |
1633 | EXTERNAL_PORT(0x0582, 0x0033, 0, "%s MIDI"), |
1634 | EXTERNAL_PORT(0x0582, 0x0033, 1, "%s 1"), | |
1635 | EXTERNAL_PORT(0x0582, 0x0033, 2, "%s 2"), | |
1da177e4 | 1636 | /* BOSS GS-10 */ |
a7b928ac CL |
1637 | EXTERNAL_PORT(0x0582, 0x003b, 0, "%s MIDI"), |
1638 | CONTROL_PORT(0x0582, 0x003b, 1, "%s Control"), | |
1da177e4 | 1639 | /* Edirol UA-1000 */ |
a7b928ac CL |
1640 | EXTERNAL_PORT(0x0582, 0x0044, 0, "%s MIDI"), |
1641 | CONTROL_PORT(0x0582, 0x0044, 1, "%s Control"), | |
1da177e4 | 1642 | /* Edirol UR-80 */ |
a7b928ac CL |
1643 | EXTERNAL_PORT(0x0582, 0x0048, 0, "%s MIDI"), |
1644 | EXTERNAL_PORT(0x0582, 0x0048, 1, "%s 1"), | |
1645 | EXTERNAL_PORT(0x0582, 0x0048, 2, "%s 2"), | |
1da177e4 | 1646 | /* Edirol PCR-A */ |
a7b928ac CL |
1647 | EXTERNAL_PORT(0x0582, 0x004d, 0, "%s MIDI"), |
1648 | EXTERNAL_PORT(0x0582, 0x004d, 1, "%s 1"), | |
1649 | EXTERNAL_PORT(0x0582, 0x004d, 2, "%s 2"), | |
a968782e CL |
1650 | /* BOSS GT-PRO */ |
1651 | CONTROL_PORT(0x0582, 0x0089, 0, "%s Control"), | |
7c79b768 | 1652 | /* Edirol UM-3EX */ |
a7b928ac | 1653 | CONTROL_PORT(0x0582, 0x009a, 3, "%s Control"), |
a968782e CL |
1654 | /* Roland VG-99 */ |
1655 | CONTROL_PORT(0x0582, 0x00b2, 0, "%s Control"), | |
1656 | EXTERNAL_PORT(0x0582, 0x00b2, 1, "%s MIDI"), | |
1657 | /* Cakewalk Sonar V-Studio 100 */ | |
1658 | EXTERNAL_PORT(0x0582, 0x00eb, 0, "%s MIDI"), | |
1659 | CONTROL_PORT(0x0582, 0x00eb, 1, "%s Control"), | |
1660 | /* Roland VB-99 */ | |
1661 | CONTROL_PORT(0x0582, 0x0102, 0, "%s Control"), | |
1662 | EXTERNAL_PORT(0x0582, 0x0102, 1, "%s MIDI"), | |
1663 | /* Roland A-PRO */ | |
1664 | EXTERNAL_PORT(0x0582, 0x010f, 0, "%s MIDI"), | |
1665 | CONTROL_PORT(0x0582, 0x010f, 1, "%s 1"), | |
1666 | CONTROL_PORT(0x0582, 0x010f, 2, "%s 2"), | |
1667 | /* Roland SD-50 */ | |
1668 | ROLAND_SYNTH_PORT(0x0582, 0x0114, 0, "%s Synth", 128), | |
1669 | EXTERNAL_PORT(0x0582, 0x0114, 1, "%s MIDI"), | |
1670 | CONTROL_PORT(0x0582, 0x0114, 2, "%s Control"), | |
1671 | /* Roland OCTA-CAPTURE */ | |
1672 | EXTERNAL_PORT(0x0582, 0x0120, 0, "%s MIDI"), | |
1673 | CONTROL_PORT(0x0582, 0x0120, 1, "%s Control"), | |
1674 | EXTERNAL_PORT(0x0582, 0x0121, 0, "%s MIDI"), | |
1675 | CONTROL_PORT(0x0582, 0x0121, 1, "%s Control"), | |
1676 | /* Roland SPD-SX */ | |
1677 | CONTROL_PORT(0x0582, 0x0145, 0, "%s Control"), | |
1678 | EXTERNAL_PORT(0x0582, 0x0145, 1, "%s MIDI"), | |
1679 | /* Roland A-Series */ | |
1680 | CONTROL_PORT(0x0582, 0x0156, 0, "%s Keyboard"), | |
1681 | EXTERNAL_PORT(0x0582, 0x0156, 1, "%s MIDI"), | |
1682 | /* Roland INTEGRA-7 */ | |
1683 | ROLAND_SYNTH_PORT(0x0582, 0x015b, 0, "%s Synth", 128), | |
1684 | CONTROL_PORT(0x0582, 0x015b, 1, "%s Control"), | |
1da177e4 | 1685 | /* M-Audio MidiSport 8x8 */ |
a7b928ac CL |
1686 | CONTROL_PORT(0x0763, 0x1031, 8, "%s Control"), |
1687 | CONTROL_PORT(0x0763, 0x1033, 8, "%s Control"), | |
1da177e4 | 1688 | /* MOTU Fastlane */ |
a7b928ac CL |
1689 | EXTERNAL_PORT(0x07fd, 0x0001, 0, "%s MIDI A"), |
1690 | EXTERNAL_PORT(0x07fd, 0x0001, 1, "%s MIDI B"), | |
1da177e4 | 1691 | /* Emagic Unitor8/AMT8/MT4 */ |
a7b928ac CL |
1692 | EXTERNAL_PORT(0x086a, 0x0001, 8, "%s Broadcast"), |
1693 | EXTERNAL_PORT(0x086a, 0x0002, 8, "%s Broadcast"), | |
1694 | EXTERNAL_PORT(0x086a, 0x0003, 4, "%s Broadcast"), | |
4434ade8 KF |
1695 | /* Akai MPD16 */ |
1696 | CONTROL_PORT(0x09e8, 0x0062, 0, "%s Control"), | |
1697 | PORT_INFO(0x09e8, 0x0062, 1, "%s MIDI", 0, | |
1698 | SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | | |
1699 | SNDRV_SEQ_PORT_TYPE_HARDWARE), | |
d39e82db SA |
1700 | /* Access Music Virus TI */ |
1701 | EXTERNAL_PORT(0x133e, 0x0815, 0, "%s MIDI"), | |
1702 | PORT_INFO(0x133e, 0x0815, 1, "%s Synth", 0, | |
1703 | SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | | |
1704 | SNDRV_SEQ_PORT_TYPE_HARDWARE | | |
1705 | SNDRV_SEQ_PORT_TYPE_SYNTHESIZER), | |
1da177e4 LT |
1706 | }; |
1707 | ||
a509574e | 1708 | static struct port_info *find_port_info(struct snd_usb_midi *umidi, int number) |
a7b928ac CL |
1709 | { |
1710 | int i; | |
1711 | ||
1712 | for (i = 0; i < ARRAY_SIZE(snd_usbmidi_port_info); ++i) { | |
d82af9f9 | 1713 | if (snd_usbmidi_port_info[i].id == umidi->usb_id && |
a7b928ac CL |
1714 | snd_usbmidi_port_info[i].port == number) |
1715 | return &snd_usbmidi_port_info[i]; | |
1716 | } | |
1717 | return NULL; | |
1718 | } | |
1719 | ||
1720 | static void snd_usbmidi_get_port_info(struct snd_rawmidi *rmidi, int number, | |
1721 | struct snd_seq_port_info *seq_port_info) | |
1722 | { | |
1723 | struct snd_usb_midi *umidi = rmidi->private_data; | |
1724 | struct port_info *port_info; | |
1725 | ||
1726 | /* TODO: read port flags from descriptors */ | |
1727 | port_info = find_port_info(umidi, number); | |
1728 | if (port_info) { | |
1729 | seq_port_info->type = port_info->seq_flags; | |
1730 | seq_port_info->midi_voices = port_info->voices; | |
1731 | } | |
1732 | } | |
1733 | ||
a509574e | 1734 | static void snd_usbmidi_init_substream(struct snd_usb_midi *umidi, |
1da177e4 | 1735 | int stream, int number, |
a509574e | 1736 | struct snd_rawmidi_substream **rsubstream) |
1da177e4 | 1737 | { |
a7b928ac | 1738 | struct port_info *port_info; |
1da177e4 LT |
1739 | const char *name_format; |
1740 | ||
a509574e AG |
1741 | struct snd_rawmidi_substream *substream = |
1742 | snd_usbmidi_find_substream(umidi, stream, number); | |
1da177e4 | 1743 | if (!substream) { |
a509574e AG |
1744 | dev_err(&umidi->dev->dev, "substream %d:%d not found\n", stream, |
1745 | number); | |
1da177e4 LT |
1746 | return; |
1747 | } | |
1748 | ||
1749 | /* TODO: read port name from jack descriptor */ | |
a7b928ac CL |
1750 | port_info = find_port_info(umidi, number); |
1751 | name_format = port_info ? port_info->name : "%s MIDI %d"; | |
1da177e4 | 1752 | snprintf(substream->name, sizeof(substream->name), |
d82af9f9 | 1753 | name_format, umidi->card->shortname, number + 1); |
1da177e4 LT |
1754 | |
1755 | *rsubstream = substream; | |
1756 | } | |
1757 | ||
1758 | /* | |
1759 | * Creates the endpoints and their ports. | |
1760 | */ | |
a509574e AG |
1761 | static int snd_usbmidi_create_endpoints(struct snd_usb_midi *umidi, |
1762 | struct snd_usb_midi_endpoint_info *endpoints) | |
1da177e4 LT |
1763 | { |
1764 | int i, j, err; | |
1765 | int out_ports = 0, in_ports = 0; | |
1766 | ||
1767 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { | |
1768 | if (endpoints[i].out_cables) { | |
a509574e AG |
1769 | err = snd_usbmidi_out_endpoint_create(umidi, |
1770 | &endpoints[i], | |
1da177e4 LT |
1771 | &umidi->endpoints[i]); |
1772 | if (err < 0) | |
1773 | return err; | |
1774 | } | |
1775 | if (endpoints[i].in_cables) { | |
a509574e AG |
1776 | err = snd_usbmidi_in_endpoint_create(umidi, |
1777 | &endpoints[i], | |
1da177e4 LT |
1778 | &umidi->endpoints[i]); |
1779 | if (err < 0) | |
1780 | return err; | |
1781 | } | |
1782 | ||
1783 | for (j = 0; j < 0x10; ++j) { | |
1784 | if (endpoints[i].out_cables & (1 << j)) { | |
a509574e AG |
1785 | snd_usbmidi_init_substream(umidi, |
1786 | SNDRV_RAWMIDI_STREAM_OUTPUT, | |
1787 | out_ports, | |
1da177e4 LT |
1788 | &umidi->endpoints[i].out->ports[j].substream); |
1789 | ++out_ports; | |
1790 | } | |
1791 | if (endpoints[i].in_cables & (1 << j)) { | |
a509574e AG |
1792 | snd_usbmidi_init_substream(umidi, |
1793 | SNDRV_RAWMIDI_STREAM_INPUT, | |
1794 | in_ports, | |
1da177e4 LT |
1795 | &umidi->endpoints[i].in->ports[j].substream); |
1796 | ++in_ports; | |
1797 | } | |
1798 | } | |
1799 | } | |
0ba41d91 | 1800 | dev_dbg(&umidi->dev->dev, "created %d output and %d input ports\n", |
1da177e4 LT |
1801 | out_ports, in_ports); |
1802 | return 0; | |
1803 | } | |
1804 | ||
1805 | /* | |
1806 | * Returns MIDIStreaming device capabilities. | |
1807 | */ | |
a509574e AG |
1808 | static int snd_usbmidi_get_ms_info(struct snd_usb_midi *umidi, |
1809 | struct snd_usb_midi_endpoint_info *endpoints) | |
1da177e4 | 1810 | { |
a509574e | 1811 | struct usb_interface *intf; |
1da177e4 | 1812 | struct usb_host_interface *hostif; |
a509574e AG |
1813 | struct usb_interface_descriptor *intfd; |
1814 | struct usb_ms_header_descriptor *ms_header; | |
1da177e4 | 1815 | struct usb_host_endpoint *hostep; |
a509574e AG |
1816 | struct usb_endpoint_descriptor *ep; |
1817 | struct usb_ms_endpoint_descriptor *ms_ep; | |
1da177e4 LT |
1818 | int i, epidx; |
1819 | ||
1820 | intf = umidi->iface; | |
1821 | if (!intf) | |
1822 | return -ENXIO; | |
1823 | hostif = &intf->altsetting[0]; | |
1824 | intfd = get_iface_desc(hostif); | |
a509574e | 1825 | ms_header = (struct usb_ms_header_descriptor *)hostif->extra; |
1da177e4 LT |
1826 | if (hostif->extralen >= 7 && |
1827 | ms_header->bLength >= 7 && | |
1828 | ms_header->bDescriptorType == USB_DT_CS_INTERFACE && | |
de48c7bc | 1829 | ms_header->bDescriptorSubtype == UAC_HEADER) |
0ba41d91 | 1830 | dev_dbg(&umidi->dev->dev, "MIDIStreaming version %02x.%02x\n", |
1da177e4 LT |
1831 | ms_header->bcdMSC[1], ms_header->bcdMSC[0]); |
1832 | else | |
0ba41d91 TI |
1833 | dev_warn(&umidi->dev->dev, |
1834 | "MIDIStreaming interface descriptor not found\n"); | |
1da177e4 LT |
1835 | |
1836 | epidx = 0; | |
1837 | for (i = 0; i < intfd->bNumEndpoints; ++i) { | |
1838 | hostep = &hostif->endpoint[i]; | |
1839 | ep = get_ep_desc(hostep); | |
913ae5a2 | 1840 | if (!usb_endpoint_xfer_bulk(ep) && !usb_endpoint_xfer_int(ep)) |
1da177e4 | 1841 | continue; |
a509574e | 1842 | ms_ep = (struct usb_ms_endpoint_descriptor *)hostep->extra; |
1da177e4 LT |
1843 | if (hostep->extralen < 4 || |
1844 | ms_ep->bLength < 4 || | |
1845 | ms_ep->bDescriptorType != USB_DT_CS_ENDPOINT || | |
de48c7bc | 1846 | ms_ep->bDescriptorSubtype != UAC_MS_GENERAL) |
1da177e4 | 1847 | continue; |
42a6e66f | 1848 | if (usb_endpoint_dir_out(ep)) { |
1da177e4 LT |
1849 | if (endpoints[epidx].out_ep) { |
1850 | if (++epidx >= MIDI_MAX_ENDPOINTS) { | |
0ba41d91 TI |
1851 | dev_warn(&umidi->dev->dev, |
1852 | "too many endpoints\n"); | |
1da177e4 LT |
1853 | break; |
1854 | } | |
1855 | } | |
42a6e66f JL |
1856 | endpoints[epidx].out_ep = usb_endpoint_num(ep); |
1857 | if (usb_endpoint_xfer_int(ep)) | |
1da177e4 | 1858 | endpoints[epidx].out_interval = ep->bInterval; |
d82af9f9 | 1859 | else if (snd_usb_get_speed(umidi->dev) == USB_SPEED_LOW) |
56162aab CL |
1860 | /* |
1861 | * Low speed bulk transfers don't exist, so | |
1862 | * force interrupt transfers for devices like | |
1863 | * ESI MIDI Mate that try to use them anyway. | |
1864 | */ | |
1865 | endpoints[epidx].out_interval = 1; | |
a509574e AG |
1866 | endpoints[epidx].out_cables = |
1867 | (1 << ms_ep->bNumEmbMIDIJack) - 1; | |
0ba41d91 | 1868 | dev_dbg(&umidi->dev->dev, "EP %02X: %d jack(s)\n", |
a509574e | 1869 | ep->bEndpointAddress, ms_ep->bNumEmbMIDIJack); |
1da177e4 LT |
1870 | } else { |
1871 | if (endpoints[epidx].in_ep) { | |
1872 | if (++epidx >= MIDI_MAX_ENDPOINTS) { | |
0ba41d91 TI |
1873 | dev_warn(&umidi->dev->dev, |
1874 | "too many endpoints\n"); | |
1da177e4 LT |
1875 | break; |
1876 | } | |
1877 | } | |
42a6e66f JL |
1878 | endpoints[epidx].in_ep = usb_endpoint_num(ep); |
1879 | if (usb_endpoint_xfer_int(ep)) | |
1da177e4 | 1880 | endpoints[epidx].in_interval = ep->bInterval; |
d82af9f9 | 1881 | else if (snd_usb_get_speed(umidi->dev) == USB_SPEED_LOW) |
56162aab | 1882 | endpoints[epidx].in_interval = 1; |
a509574e AG |
1883 | endpoints[epidx].in_cables = |
1884 | (1 << ms_ep->bNumEmbMIDIJack) - 1; | |
0ba41d91 | 1885 | dev_dbg(&umidi->dev->dev, "EP %02X: %d jack(s)\n", |
a509574e | 1886 | ep->bEndpointAddress, ms_ep->bNumEmbMIDIJack); |
1da177e4 LT |
1887 | } |
1888 | } | |
1889 | return 0; | |
1890 | } | |
1891 | ||
96f61d9a CL |
1892 | static int roland_load_info(struct snd_kcontrol *kcontrol, |
1893 | struct snd_ctl_elem_info *info) | |
1894 | { | |
1895 | static const char *const names[] = { "High Load", "Light Load" }; | |
1896 | ||
2a1803a7 | 1897 | return snd_ctl_enum_info(info, 1, 2, names); |
96f61d9a CL |
1898 | } |
1899 | ||
1900 | static int roland_load_get(struct snd_kcontrol *kcontrol, | |
1901 | struct snd_ctl_elem_value *value) | |
1902 | { | |
1903 | value->value.enumerated.item[0] = kcontrol->private_value; | |
1904 | return 0; | |
1905 | } | |
1906 | ||
1907 | static int roland_load_put(struct snd_kcontrol *kcontrol, | |
1908 | struct snd_ctl_elem_value *value) | |
1909 | { | |
a509574e | 1910 | struct snd_usb_midi *umidi = kcontrol->private_data; |
96f61d9a CL |
1911 | int changed; |
1912 | ||
1913 | if (value->value.enumerated.item[0] > 1) | |
1914 | return -EINVAL; | |
1915 | mutex_lock(&umidi->mutex); | |
1916 | changed = value->value.enumerated.item[0] != kcontrol->private_value; | |
1917 | if (changed) | |
1918 | kcontrol->private_value = value->value.enumerated.item[0]; | |
1919 | mutex_unlock(&umidi->mutex); | |
1920 | return changed; | |
1921 | } | |
1922 | ||
1923 | static struct snd_kcontrol_new roland_load_ctl = { | |
1924 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
1925 | .name = "MIDI Input Mode", | |
1926 | .info = roland_load_info, | |
1927 | .get = roland_load_get, | |
1928 | .put = roland_load_put, | |
1929 | .private_value = 1, | |
1930 | }; | |
1931 | ||
1da177e4 LT |
1932 | /* |
1933 | * On Roland devices, use the second alternate setting to be able to use | |
1934 | * the interrupt input endpoint. | |
1935 | */ | |
a509574e | 1936 | static void snd_usbmidi_switch_roland_altsetting(struct snd_usb_midi *umidi) |
1da177e4 | 1937 | { |
a509574e | 1938 | struct usb_interface *intf; |
1da177e4 | 1939 | struct usb_host_interface *hostif; |
a509574e | 1940 | struct usb_interface_descriptor *intfd; |
1da177e4 LT |
1941 | |
1942 | intf = umidi->iface; | |
1943 | if (!intf || intf->num_altsetting != 2) | |
1944 | return; | |
1945 | ||
1946 | hostif = &intf->altsetting[1]; | |
1947 | intfd = get_iface_desc(hostif); | |
ac774236 KM |
1948 | /* If either or both of the endpoints support interrupt transfer, |
1949 | * then use the alternate setting | |
1950 | */ | |
1da177e4 | 1951 | if (intfd->bNumEndpoints != 2 || |
ac774236 KM |
1952 | !((get_endpoint(hostif, 0)->bmAttributes & |
1953 | USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT || | |
1954 | (get_endpoint(hostif, 1)->bmAttributes & | |
1955 | USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT)) | |
1da177e4 LT |
1956 | return; |
1957 | ||
0ba41d91 | 1958 | dev_dbg(&umidi->dev->dev, "switching to altsetting %d with int ep\n", |
1da177e4 | 1959 | intfd->bAlternateSetting); |
d82af9f9 | 1960 | usb_set_interface(umidi->dev, intfd->bInterfaceNumber, |
1da177e4 | 1961 | intfd->bAlternateSetting); |
96f61d9a CL |
1962 | |
1963 | umidi->roland_load_ctl = snd_ctl_new1(&roland_load_ctl, umidi); | |
d82af9f9 | 1964 | if (snd_ctl_add(umidi->card, umidi->roland_load_ctl) < 0) |
96f61d9a | 1965 | umidi->roland_load_ctl = NULL; |
1da177e4 LT |
1966 | } |
1967 | ||
1968 | /* | |
1969 | * Try to find any usable endpoints in the interface. | |
1970 | */ | |
a509574e AG |
1971 | static int snd_usbmidi_detect_endpoints(struct snd_usb_midi *umidi, |
1972 | struct snd_usb_midi_endpoint_info *endpoint, | |
1da177e4 LT |
1973 | int max_endpoints) |
1974 | { | |
a509574e | 1975 | struct usb_interface *intf; |
1da177e4 | 1976 | struct usb_host_interface *hostif; |
a509574e AG |
1977 | struct usb_interface_descriptor *intfd; |
1978 | struct usb_endpoint_descriptor *epd; | |
1da177e4 LT |
1979 | int i, out_eps = 0, in_eps = 0; |
1980 | ||
d82af9f9 | 1981 | if (USB_ID_VENDOR(umidi->usb_id) == 0x0582) |
1da177e4 LT |
1982 | snd_usbmidi_switch_roland_altsetting(umidi); |
1983 | ||
c1ab5d59 | 1984 | if (endpoint[0].out_ep || endpoint[0].in_ep) |
21af7d8c | 1985 | return 0; |
c1ab5d59 | 1986 | |
1da177e4 LT |
1987 | intf = umidi->iface; |
1988 | if (!intf || intf->num_altsetting < 1) | |
1989 | return -ENOENT; | |
1990 | hostif = intf->cur_altsetting; | |
1991 | intfd = get_iface_desc(hostif); | |
1992 | ||
1993 | for (i = 0; i < intfd->bNumEndpoints; ++i) { | |
1994 | epd = get_endpoint(hostif, i); | |
913ae5a2 JL |
1995 | if (!usb_endpoint_xfer_bulk(epd) && |
1996 | !usb_endpoint_xfer_int(epd)) | |
1da177e4 LT |
1997 | continue; |
1998 | if (out_eps < max_endpoints && | |
42a6e66f JL |
1999 | usb_endpoint_dir_out(epd)) { |
2000 | endpoint[out_eps].out_ep = usb_endpoint_num(epd); | |
2001 | if (usb_endpoint_xfer_int(epd)) | |
1da177e4 LT |
2002 | endpoint[out_eps].out_interval = epd->bInterval; |
2003 | ++out_eps; | |
2004 | } | |
2005 | if (in_eps < max_endpoints && | |
42a6e66f JL |
2006 | usb_endpoint_dir_in(epd)) { |
2007 | endpoint[in_eps].in_ep = usb_endpoint_num(epd); | |
2008 | if (usb_endpoint_xfer_int(epd)) | |
1da177e4 LT |
2009 | endpoint[in_eps].in_interval = epd->bInterval; |
2010 | ++in_eps; | |
2011 | } | |
2012 | } | |
2013 | return (out_eps || in_eps) ? 0 : -ENOENT; | |
2014 | } | |
2015 | ||
2016 | /* | |
2017 | * Detects the endpoints for one-port-per-endpoint protocols. | |
2018 | */ | |
a509574e AG |
2019 | static int snd_usbmidi_detect_per_port_endpoints(struct snd_usb_midi *umidi, |
2020 | struct snd_usb_midi_endpoint_info *endpoints) | |
1da177e4 LT |
2021 | { |
2022 | int err, i; | |
21af7d8c | 2023 | |
1da177e4 LT |
2024 | err = snd_usbmidi_detect_endpoints(umidi, endpoints, MIDI_MAX_ENDPOINTS); |
2025 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { | |
2026 | if (endpoints[i].out_ep) | |
2027 | endpoints[i].out_cables = 0x0001; | |
2028 | if (endpoints[i].in_ep) | |
2029 | endpoints[i].in_cables = 0x0001; | |
2030 | } | |
2031 | return err; | |
2032 | } | |
2033 | ||
2034 | /* | |
2035 | * Detects the endpoints and ports of Yamaha devices. | |
2036 | */ | |
a509574e AG |
2037 | static int snd_usbmidi_detect_yamaha(struct snd_usb_midi *umidi, |
2038 | struct snd_usb_midi_endpoint_info *endpoint) | |
1da177e4 | 2039 | { |
a509574e | 2040 | struct usb_interface *intf; |
1da177e4 | 2041 | struct usb_host_interface *hostif; |
a509574e AG |
2042 | struct usb_interface_descriptor *intfd; |
2043 | uint8_t *cs_desc; | |
1da177e4 LT |
2044 | |
2045 | intf = umidi->iface; | |
2046 | if (!intf) | |
2047 | return -ENOENT; | |
2048 | hostif = intf->altsetting; | |
2049 | intfd = get_iface_desc(hostif); | |
2050 | if (intfd->bNumEndpoints < 1) | |
2051 | return -ENOENT; | |
2052 | ||
2053 | /* | |
2054 | * For each port there is one MIDI_IN/OUT_JACK descriptor, not | |
2055 | * necessarily with any useful contents. So simply count 'em. | |
2056 | */ | |
2057 | for (cs_desc = hostif->extra; | |
2058 | cs_desc < hostif->extra + hostif->extralen && cs_desc[0] >= 2; | |
2059 | cs_desc += cs_desc[0]) { | |
c4a87ef4 | 2060 | if (cs_desc[1] == USB_DT_CS_INTERFACE) { |
de48c7bc | 2061 | if (cs_desc[2] == UAC_MIDI_IN_JACK) |
a509574e AG |
2062 | endpoint->in_cables = |
2063 | (endpoint->in_cables << 1) | 1; | |
de48c7bc | 2064 | else if (cs_desc[2] == UAC_MIDI_OUT_JACK) |
a509574e AG |
2065 | endpoint->out_cables = |
2066 | (endpoint->out_cables << 1) | 1; | |
1da177e4 LT |
2067 | } |
2068 | } | |
2069 | if (!endpoint->in_cables && !endpoint->out_cables) | |
2070 | return -ENOENT; | |
2071 | ||
2072 | return snd_usbmidi_detect_endpoints(umidi, endpoint, 1); | |
2073 | } | |
2074 | ||
aafe77cc CL |
2075 | /* |
2076 | * Detects the endpoints and ports of Roland devices. | |
2077 | */ | |
a509574e AG |
2078 | static int snd_usbmidi_detect_roland(struct snd_usb_midi *umidi, |
2079 | struct snd_usb_midi_endpoint_info *endpoint) | |
aafe77cc | 2080 | { |
a509574e | 2081 | struct usb_interface *intf; |
aafe77cc | 2082 | struct usb_host_interface *hostif; |
a509574e | 2083 | u8 *cs_desc; |
aafe77cc CL |
2084 | |
2085 | intf = umidi->iface; | |
2086 | if (!intf) | |
2087 | return -ENOENT; | |
2088 | hostif = intf->altsetting; | |
2089 | /* | |
2090 | * Some devices have a descriptor <06 24 F1 02 <inputs> <outputs>>, | |
2091 | * some have standard class descriptors, or both kinds, or neither. | |
2092 | */ | |
2093 | for (cs_desc = hostif->extra; | |
2094 | cs_desc < hostif->extra + hostif->extralen && cs_desc[0] >= 2; | |
2095 | cs_desc += cs_desc[0]) { | |
2096 | if (cs_desc[0] >= 6 && | |
2097 | cs_desc[1] == USB_DT_CS_INTERFACE && | |
2098 | cs_desc[2] == 0xf1 && | |
2099 | cs_desc[3] == 0x02) { | |
2100 | endpoint->in_cables = (1 << cs_desc[4]) - 1; | |
2101 | endpoint->out_cables = (1 << cs_desc[5]) - 1; | |
2102 | return snd_usbmidi_detect_endpoints(umidi, endpoint, 1); | |
2103 | } else if (cs_desc[0] >= 7 && | |
2104 | cs_desc[1] == USB_DT_CS_INTERFACE && | |
2105 | cs_desc[2] == UAC_HEADER) { | |
2106 | return snd_usbmidi_get_ms_info(umidi, endpoint); | |
2107 | } | |
2108 | } | |
2109 | ||
2110 | return -ENODEV; | |
2111 | } | |
2112 | ||
1da177e4 LT |
2113 | /* |
2114 | * Creates the endpoints and their ports for Midiman devices. | |
2115 | */ | |
a509574e AG |
2116 | static int snd_usbmidi_create_endpoints_midiman(struct snd_usb_midi *umidi, |
2117 | struct snd_usb_midi_endpoint_info *endpoint) | |
1da177e4 | 2118 | { |
86e07d34 | 2119 | struct snd_usb_midi_endpoint_info ep_info; |
a509574e | 2120 | struct usb_interface *intf; |
1da177e4 | 2121 | struct usb_host_interface *hostif; |
a509574e AG |
2122 | struct usb_interface_descriptor *intfd; |
2123 | struct usb_endpoint_descriptor *epd; | |
1da177e4 LT |
2124 | int cable, err; |
2125 | ||
2126 | intf = umidi->iface; | |
2127 | if (!intf) | |
2128 | return -ENOENT; | |
2129 | hostif = intf->altsetting; | |
2130 | intfd = get_iface_desc(hostif); | |
2131 | /* | |
2132 | * The various MidiSport devices have more or less random endpoint | |
2133 | * numbers, so we have to identify the endpoints by their index in | |
2134 | * the descriptor array, like the driver for that other OS does. | |
2135 | * | |
2136 | * There is one interrupt input endpoint for all input ports, one | |
2137 | * bulk output endpoint for even-numbered ports, and one for odd- | |
2138 | * numbered ports. Both bulk output endpoints have corresponding | |
2139 | * input bulk endpoints (at indices 1 and 3) which aren't used. | |
2140 | */ | |
2141 | if (intfd->bNumEndpoints < (endpoint->out_cables > 0x0001 ? 5 : 3)) { | |
0ba41d91 | 2142 | dev_dbg(&umidi->dev->dev, "not enough endpoints\n"); |
1da177e4 LT |
2143 | return -ENOENT; |
2144 | } | |
2145 | ||
2146 | epd = get_endpoint(hostif, 0); | |
913ae5a2 | 2147 | if (!usb_endpoint_dir_in(epd) || !usb_endpoint_xfer_int(epd)) { |
0ba41d91 | 2148 | dev_dbg(&umidi->dev->dev, "endpoint[0] isn't interrupt\n"); |
1da177e4 LT |
2149 | return -ENXIO; |
2150 | } | |
2151 | epd = get_endpoint(hostif, 2); | |
913ae5a2 | 2152 | if (!usb_endpoint_dir_out(epd) || !usb_endpoint_xfer_bulk(epd)) { |
0ba41d91 | 2153 | dev_dbg(&umidi->dev->dev, "endpoint[2] isn't bulk output\n"); |
1da177e4 LT |
2154 | return -ENXIO; |
2155 | } | |
2156 | if (endpoint->out_cables > 0x0001) { | |
2157 | epd = get_endpoint(hostif, 4); | |
913ae5a2 JL |
2158 | if (!usb_endpoint_dir_out(epd) || |
2159 | !usb_endpoint_xfer_bulk(epd)) { | |
a509574e AG |
2160 | dev_dbg(&umidi->dev->dev, |
2161 | "endpoint[4] isn't bulk output\n"); | |
1da177e4 LT |
2162 | return -ENXIO; |
2163 | } | |
2164 | } | |
2165 | ||
a509574e AG |
2166 | ep_info.out_ep = get_endpoint(hostif, 2)->bEndpointAddress & |
2167 | USB_ENDPOINT_NUMBER_MASK; | |
e156ac4c | 2168 | ep_info.out_interval = 0; |
1da177e4 | 2169 | ep_info.out_cables = endpoint->out_cables & 0x5555; |
a509574e AG |
2170 | err = snd_usbmidi_out_endpoint_create(umidi, &ep_info, |
2171 | &umidi->endpoints[0]); | |
1da177e4 LT |
2172 | if (err < 0) |
2173 | return err; | |
2174 | ||
a509574e AG |
2175 | ep_info.in_ep = get_endpoint(hostif, 0)->bEndpointAddress & |
2176 | USB_ENDPOINT_NUMBER_MASK; | |
1da177e4 LT |
2177 | ep_info.in_interval = get_endpoint(hostif, 0)->bInterval; |
2178 | ep_info.in_cables = endpoint->in_cables; | |
a509574e AG |
2179 | err = snd_usbmidi_in_endpoint_create(umidi, &ep_info, |
2180 | &umidi->endpoints[0]); | |
1da177e4 LT |
2181 | if (err < 0) |
2182 | return err; | |
2183 | ||
2184 | if (endpoint->out_cables > 0x0001) { | |
a509574e AG |
2185 | ep_info.out_ep = get_endpoint(hostif, 4)->bEndpointAddress & |
2186 | USB_ENDPOINT_NUMBER_MASK; | |
1da177e4 | 2187 | ep_info.out_cables = endpoint->out_cables & 0xaaaa; |
a509574e AG |
2188 | err = snd_usbmidi_out_endpoint_create(umidi, &ep_info, |
2189 | &umidi->endpoints[1]); | |
1da177e4 LT |
2190 | if (err < 0) |
2191 | return err; | |
2192 | } | |
2193 | ||
2194 | for (cable = 0; cable < 0x10; ++cable) { | |
2195 | if (endpoint->out_cables & (1 << cable)) | |
a509574e AG |
2196 | snd_usbmidi_init_substream(umidi, |
2197 | SNDRV_RAWMIDI_STREAM_OUTPUT, | |
2198 | cable, | |
1da177e4 LT |
2199 | &umidi->endpoints[cable & 1].out->ports[cable].substream); |
2200 | if (endpoint->in_cables & (1 << cable)) | |
a509574e AG |
2201 | snd_usbmidi_init_substream(umidi, |
2202 | SNDRV_RAWMIDI_STREAM_INPUT, | |
2203 | cable, | |
1da177e4 LT |
2204 | &umidi->endpoints[0].in->ports[cable].substream); |
2205 | } | |
2206 | return 0; | |
2207 | } | |
2208 | ||
a7b928ac CL |
2209 | static struct snd_rawmidi_global_ops snd_usbmidi_ops = { |
2210 | .get_port_info = snd_usbmidi_get_port_info, | |
2211 | }; | |
2212 | ||
a509574e | 2213 | static int snd_usbmidi_create_rawmidi(struct snd_usb_midi *umidi, |
1da177e4 LT |
2214 | int out_ports, int in_ports) |
2215 | { | |
86e07d34 | 2216 | struct snd_rawmidi *rmidi; |
1da177e4 LT |
2217 | int err; |
2218 | ||
d82af9f9 CL |
2219 | err = snd_rawmidi_new(umidi->card, "USB MIDI", |
2220 | umidi->next_midi_device++, | |
1da177e4 LT |
2221 | out_ports, in_ports, &rmidi); |
2222 | if (err < 0) | |
2223 | return err; | |
d82af9f9 | 2224 | strcpy(rmidi->name, umidi->card->shortname); |
1da177e4 LT |
2225 | rmidi->info_flags = SNDRV_RAWMIDI_INFO_OUTPUT | |
2226 | SNDRV_RAWMIDI_INFO_INPUT | | |
2227 | SNDRV_RAWMIDI_INFO_DUPLEX; | |
a7b928ac | 2228 | rmidi->ops = &snd_usbmidi_ops; |
1da177e4 LT |
2229 | rmidi->private_data = umidi; |
2230 | rmidi->private_free = snd_usbmidi_rawmidi_free; | |
a509574e AG |
2231 | snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, |
2232 | &snd_usbmidi_output_ops); | |
2233 | snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, | |
2234 | &snd_usbmidi_input_ops); | |
1da177e4 LT |
2235 | |
2236 | umidi->rmidi = rmidi; | |
2237 | return 0; | |
2238 | } | |
2239 | ||
2240 | /* | |
2241 | * Temporarily stop input. | |
2242 | */ | |
a509574e | 2243 | void snd_usbmidi_input_stop(struct list_head *p) |
1da177e4 | 2244 | { |
a509574e | 2245 | struct snd_usb_midi *umidi; |
4773d1fb | 2246 | unsigned int i, j; |
1da177e4 | 2247 | |
86e07d34 | 2248 | umidi = list_entry(p, struct snd_usb_midi, list); |
f5f16541 TI |
2249 | if (!umidi->input_running) |
2250 | return; | |
1da177e4 | 2251 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { |
a509574e | 2252 | struct snd_usb_midi_endpoint *ep = &umidi->endpoints[i]; |
1da177e4 | 2253 | if (ep->in) |
4773d1fb CL |
2254 | for (j = 0; j < INPUT_URBS; ++j) |
2255 | usb_kill_urb(ep->in->urbs[j]); | |
1da177e4 | 2256 | } |
f5f16541 | 2257 | umidi->input_running = 0; |
1da177e4 | 2258 | } |
ed136aca | 2259 | EXPORT_SYMBOL(snd_usbmidi_input_stop); |
1da177e4 | 2260 | |
a509574e | 2261 | static void snd_usbmidi_input_start_ep(struct snd_usb_midi_in_endpoint *ep) |
1da177e4 | 2262 | { |
4773d1fb CL |
2263 | unsigned int i; |
2264 | ||
2265 | if (!ep) | |
2266 | return; | |
2267 | for (i = 0; i < INPUT_URBS; ++i) { | |
a509574e | 2268 | struct urb *urb = ep->urbs[i]; |
d82af9f9 | 2269 | urb->dev = ep->umidi->dev; |
1da177e4 LT |
2270 | snd_usbmidi_submit_urb(urb, GFP_KERNEL); |
2271 | } | |
2272 | } | |
2273 | ||
2274 | /* | |
2275 | * Resume input after a call to snd_usbmidi_input_stop(). | |
2276 | */ | |
a509574e | 2277 | void snd_usbmidi_input_start(struct list_head *p) |
1da177e4 | 2278 | { |
a509574e | 2279 | struct snd_usb_midi *umidi; |
1da177e4 LT |
2280 | int i; |
2281 | ||
86e07d34 | 2282 | umidi = list_entry(p, struct snd_usb_midi, list); |
f5f16541 TI |
2283 | if (umidi->input_running || !umidi->opened[1]) |
2284 | return; | |
1da177e4 LT |
2285 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) |
2286 | snd_usbmidi_input_start_ep(umidi->endpoints[i].in); | |
f5f16541 | 2287 | umidi->input_running = 1; |
1da177e4 | 2288 | } |
ed136aca | 2289 | EXPORT_SYMBOL(snd_usbmidi_input_start); |
1da177e4 | 2290 | |
f7881e5e AG |
2291 | /* |
2292 | * Prepare for suspend. Typically called from the USB suspend callback. | |
2293 | */ | |
2294 | void snd_usbmidi_suspend(struct list_head *p) | |
2295 | { | |
2296 | struct snd_usb_midi *umidi; | |
2297 | ||
2298 | umidi = list_entry(p, struct snd_usb_midi, list); | |
2299 | mutex_lock(&umidi->mutex); | |
2300 | snd_usbmidi_input_stop(p); | |
2301 | mutex_unlock(&umidi->mutex); | |
2302 | } | |
2303 | EXPORT_SYMBOL(snd_usbmidi_suspend); | |
2304 | ||
2305 | /* | |
2306 | * Resume. Typically called from the USB resume callback. | |
2307 | */ | |
2308 | void snd_usbmidi_resume(struct list_head *p) | |
2309 | { | |
2310 | struct snd_usb_midi *umidi; | |
2311 | ||
2312 | umidi = list_entry(p, struct snd_usb_midi, list); | |
2313 | mutex_lock(&umidi->mutex); | |
2314 | snd_usbmidi_input_start(p); | |
2315 | mutex_unlock(&umidi->mutex); | |
2316 | } | |
2317 | EXPORT_SYMBOL(snd_usbmidi_resume); | |
2318 | ||
1da177e4 LT |
2319 | /* |
2320 | * Creates and registers everything needed for a MIDI streaming interface. | |
2321 | */ | |
d82af9f9 | 2322 | int snd_usbmidi_create(struct snd_card *card, |
a509574e | 2323 | struct usb_interface *iface, |
d82af9f9 | 2324 | struct list_head *midi_list, |
a509574e | 2325 | const struct snd_usb_audio_quirk *quirk) |
1da177e4 | 2326 | { |
a509574e | 2327 | struct snd_usb_midi *umidi; |
86e07d34 | 2328 | struct snd_usb_midi_endpoint_info endpoints[MIDI_MAX_ENDPOINTS]; |
1da177e4 LT |
2329 | int out_ports, in_ports; |
2330 | int i, err; | |
2331 | ||
561b220a | 2332 | umidi = kzalloc(sizeof(*umidi), GFP_KERNEL); |
1da177e4 LT |
2333 | if (!umidi) |
2334 | return -ENOMEM; | |
d82af9f9 CL |
2335 | umidi->dev = interface_to_usbdev(iface); |
2336 | umidi->card = card; | |
1da177e4 LT |
2337 | umidi->iface = iface; |
2338 | umidi->quirk = quirk; | |
2339 | umidi->usb_protocol_ops = &snd_usbmidi_standard_ops; | |
c0792e00 | 2340 | spin_lock_init(&umidi->disc_lock); |
59866da9 | 2341 | init_rwsem(&umidi->disc_rwsem); |
96f61d9a | 2342 | mutex_init(&umidi->mutex); |
d82af9f9 CL |
2343 | umidi->usb_id = USB_ID(le16_to_cpu(umidi->dev->descriptor.idVendor), |
2344 | le16_to_cpu(umidi->dev->descriptor.idProduct)); | |
28e237a9 TI |
2345 | setup_timer(&umidi->error_timer, snd_usbmidi_error_timer, |
2346 | (unsigned long)umidi); | |
1da177e4 LT |
2347 | |
2348 | /* detect the endpoint(s) to use */ | |
2349 | memset(endpoints, 0, sizeof(endpoints)); | |
d1bda045 CL |
2350 | switch (quirk ? quirk->type : QUIRK_MIDI_STANDARD_INTERFACE) { |
2351 | case QUIRK_MIDI_STANDARD_INTERFACE: | |
1da177e4 | 2352 | err = snd_usbmidi_get_ms_info(umidi, endpoints); |
d82af9f9 | 2353 | if (umidi->usb_id == USB_ID(0x0763, 0x0150)) /* M-Audio Uno */ |
d05cc104 CL |
2354 | umidi->usb_protocol_ops = |
2355 | &snd_usbmidi_maudio_broken_running_status_ops; | |
d1bda045 | 2356 | break; |
030a07e4 KW |
2357 | case QUIRK_MIDI_US122L: |
2358 | umidi->usb_protocol_ops = &snd_usbmidi_122l_ops; | |
2359 | /* fall through */ | |
d1bda045 CL |
2360 | case QUIRK_MIDI_FIXED_ENDPOINT: |
2361 | memcpy(&endpoints[0], quirk->data, | |
86e07d34 | 2362 | sizeof(struct snd_usb_midi_endpoint_info)); |
d1bda045 CL |
2363 | err = snd_usbmidi_detect_endpoints(umidi, &endpoints[0], 1); |
2364 | break; | |
2365 | case QUIRK_MIDI_YAMAHA: | |
2366 | err = snd_usbmidi_detect_yamaha(umidi, &endpoints[0]); | |
2367 | break; | |
aafe77cc CL |
2368 | case QUIRK_MIDI_ROLAND: |
2369 | err = snd_usbmidi_detect_roland(umidi, &endpoints[0]); | |
2370 | break; | |
d1bda045 CL |
2371 | case QUIRK_MIDI_MIDIMAN: |
2372 | umidi->usb_protocol_ops = &snd_usbmidi_midiman_ops; | |
2373 | memcpy(&endpoints[0], quirk->data, | |
86e07d34 | 2374 | sizeof(struct snd_usb_midi_endpoint_info)); |
d1bda045 CL |
2375 | err = 0; |
2376 | break; | |
2377 | case QUIRK_MIDI_NOVATION: | |
2378 | umidi->usb_protocol_ops = &snd_usbmidi_novation_ops; | |
2379 | err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints); | |
2380 | break; | |
c7f57216 | 2381 | case QUIRK_MIDI_RAW_BYTES: |
d1bda045 | 2382 | umidi->usb_protocol_ops = &snd_usbmidi_raw_ops; |
55de5ef9 CL |
2383 | /* |
2384 | * Interface 1 contains isochronous endpoints, but with the same | |
2385 | * numbers as in interface 0. Since it is interface 1 that the | |
2386 | * USB core has most recently seen, these descriptors are now | |
2387 | * associated with the endpoint numbers. This will foul up our | |
2388 | * attempts to submit bulk/interrupt URBs to the endpoints in | |
2389 | * interface 0, so we have to make sure that the USB core looks | |
2390 | * again at interface 0 by calling usb_set_interface() on it. | |
2391 | */ | |
c7f57216 CL |
2392 | if (umidi->usb_id == USB_ID(0x07fd, 0x0001)) /* MOTU Fastlane */ |
2393 | usb_set_interface(umidi->dev, 0, 0); | |
d1bda045 CL |
2394 | err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints); |
2395 | break; | |
2396 | case QUIRK_MIDI_EMAGIC: | |
2397 | umidi->usb_protocol_ops = &snd_usbmidi_emagic_ops; | |
2398 | memcpy(&endpoints[0], quirk->data, | |
86e07d34 | 2399 | sizeof(struct snd_usb_midi_endpoint_info)); |
d1bda045 CL |
2400 | err = snd_usbmidi_detect_endpoints(umidi, &endpoints[0], 1); |
2401 | break; | |
cc7a59bd | 2402 | case QUIRK_MIDI_CME: |
61870aed | 2403 | umidi->usb_protocol_ops = &snd_usbmidi_cme_ops; |
d1bda045 CL |
2404 | err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints); |
2405 | break; | |
4434ade8 KF |
2406 | case QUIRK_MIDI_AKAI: |
2407 | umidi->usb_protocol_ops = &snd_usbmidi_akai_ops; | |
2408 | err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints); | |
2409 | /* endpoint 1 is input-only */ | |
2410 | endpoints[1].out_cables = 0; | |
2411 | break; | |
1ef0e0a0 KA |
2412 | case QUIRK_MIDI_FTDI: |
2413 | umidi->usb_protocol_ops = &snd_usbmidi_ftdi_ops; | |
2414 | ||
2415 | /* set baud rate to 31250 (48 MHz / 16 / 96) */ | |
2416 | err = usb_control_msg(umidi->dev, usb_sndctrlpipe(umidi->dev, 0), | |
2417 | 3, 0x40, 0x60, 0, NULL, 0, 1000); | |
2418 | if (err < 0) | |
2419 | break; | |
2420 | ||
1ca8b201 CL |
2421 | err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints); |
2422 | break; | |
2423 | case QUIRK_MIDI_CH345: | |
a91e627e | 2424 | umidi->usb_protocol_ops = &snd_usbmidi_ch345_broken_sysex_ops; |
1ef0e0a0 KA |
2425 | err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints); |
2426 | break; | |
d1bda045 | 2427 | default: |
a509574e AG |
2428 | dev_err(&umidi->dev->dev, "invalid quirk type %d\n", |
2429 | quirk->type); | |
d1bda045 CL |
2430 | err = -ENXIO; |
2431 | break; | |
1da177e4 LT |
2432 | } |
2433 | if (err < 0) { | |
2434 | kfree(umidi); | |
2435 | return err; | |
2436 | } | |
2437 | ||
2438 | /* create rawmidi device */ | |
2439 | out_ports = 0; | |
2440 | in_ports = 0; | |
2441 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { | |
fbc54391 AM |
2442 | out_ports += hweight16(endpoints[i].out_cables); |
2443 | in_ports += hweight16(endpoints[i].in_cables); | |
1da177e4 LT |
2444 | } |
2445 | err = snd_usbmidi_create_rawmidi(umidi, out_ports, in_ports); | |
2446 | if (err < 0) { | |
2447 | kfree(umidi); | |
2448 | return err; | |
2449 | } | |
2450 | ||
2451 | /* create endpoint/port structures */ | |
2452 | if (quirk && quirk->type == QUIRK_MIDI_MIDIMAN) | |
2453 | err = snd_usbmidi_create_endpoints_midiman(umidi, &endpoints[0]); | |
2454 | else | |
2455 | err = snd_usbmidi_create_endpoints(umidi, endpoints); | |
2456 | if (err < 0) { | |
2457 | snd_usbmidi_free(umidi); | |
2458 | return err; | |
2459 | } | |
2460 | ||
cbc200bc CL |
2461 | usb_autopm_get_interface_no_resume(umidi->iface); |
2462 | ||
d82af9f9 | 2463 | list_add_tail(&umidi->list, midi_list); |
1da177e4 LT |
2464 | return 0; |
2465 | } | |
d82af9f9 | 2466 | EXPORT_SYMBOL(snd_usbmidi_create); |