Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * usbmidi.c - ALSA USB MIDI driver | |
3 | * | |
96f61d9a | 4 | * Copyright (c) 2002-2009 Clemens Ladisch |
1da177e4 LT |
5 | * All rights reserved. |
6 | * | |
7 | * Based on the OSS usb-midi driver by NAGANO Daisuke, | |
8 | * NetBSD's umidi driver by Takuya SHIOZAKI, | |
9 | * the "USB Device Class Definition for MIDI Devices" by Roland | |
10 | * | |
11 | * Redistribution and use in source and binary forms, with or without | |
12 | * modification, are permitted provided that the following conditions | |
13 | * are met: | |
14 | * 1. Redistributions of source code must retain the above copyright | |
15 | * notice, this list of conditions, and the following disclaimer, | |
16 | * without modification. | |
17 | * 2. The name of the author may not be used to endorse or promote products | |
18 | * derived from this software without specific prior written permission. | |
19 | * | |
20 | * Alternatively, this software may be distributed and/or modified under the | |
21 | * terms of the GNU General Public License as published by the Free Software | |
22 | * Foundation; either version 2 of the License, or (at your option) any later | |
23 | * version. | |
24 | * | |
25 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND | |
26 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
27 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
28 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR | |
29 | * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
30 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
31 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
32 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
33 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
34 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
35 | * SUCH DAMAGE. | |
36 | */ | |
37 | ||
1da177e4 LT |
38 | #include <linux/kernel.h> |
39 | #include <linux/types.h> | |
40 | #include <linux/bitops.h> | |
41 | #include <linux/interrupt.h> | |
42 | #include <linux/spinlock.h> | |
43 | #include <linux/string.h> | |
44 | #include <linux/init.h> | |
45 | #include <linux/slab.h> | |
c8846970 | 46 | #include <linux/timer.h> |
1da177e4 | 47 | #include <linux/usb.h> |
a65dd997 | 48 | #include <linux/wait.h> |
de48c7bc | 49 | #include <linux/usb/audio.h> |
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; | |
17074c1a | 115 | const 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 | ||
17074c1a | 674 | static const struct usb_protocol_ops snd_usbmidi_standard_ops = { |
1da177e4 LT |
675 | .input = snd_usbmidi_standard_input, |
676 | .output = snd_usbmidi_standard_output, | |
677 | .output_packet = snd_usbmidi_output_standard_packet, | |
678 | }; | |
679 | ||
17074c1a | 680 | static const struct usb_protocol_ops snd_usbmidi_midiman_ops = { |
1da177e4 | 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 | ||
17074c1a JL |
686 | static const |
687 | struct usb_protocol_ops snd_usbmidi_maudio_broken_running_status_ops = { | |
d05cc104 | 688 | .input = snd_usbmidi_maudio_broken_running_status_input, |
21af7d8c | 689 | .output = snd_usbmidi_standard_output, |
d05cc104 CL |
690 | .output_packet = snd_usbmidi_output_standard_packet, |
691 | }; | |
692 | ||
17074c1a | 693 | static const struct usb_protocol_ops snd_usbmidi_cme_ops = { |
61870aed CL |
694 | .input = snd_usbmidi_cme_input, |
695 | .output = snd_usbmidi_standard_output, | |
696 | .output_packet = snd_usbmidi_output_standard_packet, | |
697 | }; | |
698 | ||
17074c1a | 699 | static const struct usb_protocol_ops snd_usbmidi_ch345_broken_sysex_ops = { |
a91e627e CL |
700 | .input = ch345_broken_sysex_input, |
701 | .output = snd_usbmidi_standard_output, | |
702 | .output_packet = snd_usbmidi_output_standard_packet, | |
703 | }; | |
704 | ||
4434ade8 KF |
705 | /* |
706 | * AKAI MPD16 protocol: | |
707 | * | |
708 | * For control port (endpoint 1): | |
709 | * ============================== | |
710 | * One or more chunks consisting of first byte of (0x10 | msg_len) and then a | |
711 | * SysEx message (msg_len=9 bytes long). | |
712 | * | |
713 | * For data port (endpoint 2): | |
714 | * =========================== | |
715 | * One or more chunks consisting of first byte of (0x20 | msg_len) and then a | |
716 | * MIDI message (msg_len bytes long) | |
717 | * | |
718 | * Messages sent: Active Sense, Note On, Poly Pressure, Control Change. | |
719 | */ | |
720 | static void snd_usbmidi_akai_input(struct snd_usb_midi_in_endpoint *ep, | |
721 | uint8_t *buffer, int buffer_length) | |
722 | { | |
723 | unsigned int pos = 0; | |
724 | unsigned int len = (unsigned int)buffer_length; | |
725 | while (pos < len) { | |
726 | unsigned int port = (buffer[pos] >> 4) - 1; | |
727 | unsigned int msg_len = buffer[pos] & 0x0f; | |
728 | pos++; | |
729 | if (pos + msg_len <= len && port < 2) | |
730 | snd_usbmidi_input_data(ep, 0, &buffer[pos], msg_len); | |
731 | pos += msg_len; | |
732 | } | |
733 | } | |
734 | ||
735 | #define MAX_AKAI_SYSEX_LEN 9 | |
736 | ||
737 | static void snd_usbmidi_akai_output(struct snd_usb_midi_out_endpoint *ep, | |
738 | struct urb *urb) | |
739 | { | |
740 | uint8_t *msg; | |
741 | int pos, end, count, buf_end; | |
742 | uint8_t tmp[MAX_AKAI_SYSEX_LEN]; | |
743 | struct snd_rawmidi_substream *substream = ep->ports[0].substream; | |
744 | ||
745 | if (!ep->ports[0].active) | |
746 | return; | |
747 | ||
748 | msg = urb->transfer_buffer + urb->transfer_buffer_length; | |
749 | buf_end = ep->max_transfer - MAX_AKAI_SYSEX_LEN - 1; | |
750 | ||
751 | /* only try adding more data when there's space for at least 1 SysEx */ | |
752 | while (urb->transfer_buffer_length < buf_end) { | |
753 | count = snd_rawmidi_transmit_peek(substream, | |
754 | tmp, MAX_AKAI_SYSEX_LEN); | |
755 | if (!count) { | |
756 | ep->ports[0].active = 0; | |
757 | return; | |
758 | } | |
759 | /* try to skip non-SysEx data */ | |
760 | for (pos = 0; pos < count && tmp[pos] != 0xF0; pos++) | |
761 | ; | |
762 | ||
763 | if (pos > 0) { | |
764 | snd_rawmidi_transmit_ack(substream, pos); | |
765 | continue; | |
766 | } | |
767 | ||
768 | /* look for the start or end marker */ | |
769 | for (end = 1; end < count && tmp[end] < 0xF0; end++) | |
770 | ; | |
771 | ||
772 | /* next SysEx started before the end of current one */ | |
773 | if (end < count && tmp[end] == 0xF0) { | |
774 | /* it's incomplete - drop it */ | |
775 | snd_rawmidi_transmit_ack(substream, end); | |
776 | continue; | |
777 | } | |
778 | /* SysEx complete */ | |
779 | if (end < count && tmp[end] == 0xF7) { | |
780 | /* queue it, ack it, and get the next one */ | |
781 | count = end + 1; | |
782 | msg[0] = 0x10 | count; | |
783 | memcpy(&msg[1], tmp, count); | |
784 | snd_rawmidi_transmit_ack(substream, count); | |
785 | urb->transfer_buffer_length += count + 1; | |
786 | msg += count + 1; | |
787 | continue; | |
788 | } | |
789 | /* less than 9 bytes and no end byte - wait for more */ | |
790 | if (count < MAX_AKAI_SYSEX_LEN) { | |
791 | ep->ports[0].active = 0; | |
792 | return; | |
793 | } | |
794 | /* 9 bytes and no end marker in sight - malformed, skip it */ | |
795 | snd_rawmidi_transmit_ack(substream, count); | |
796 | } | |
797 | } | |
798 | ||
17074c1a | 799 | static const struct usb_protocol_ops snd_usbmidi_akai_ops = { |
4434ade8 KF |
800 | .input = snd_usbmidi_akai_input, |
801 | .output = snd_usbmidi_akai_output, | |
802 | }; | |
803 | ||
1da177e4 LT |
804 | /* |
805 | * Novation USB MIDI protocol: number of data bytes is in the first byte | |
806 | * (when receiving) (+1!) or in the second byte (when sending); data begins | |
807 | * at the third byte. | |
808 | */ | |
809 | ||
a509574e AG |
810 | static void snd_usbmidi_novation_input(struct snd_usb_midi_in_endpoint *ep, |
811 | uint8_t *buffer, int buffer_length) | |
1da177e4 LT |
812 | { |
813 | if (buffer_length < 2 || !buffer[0] || buffer_length < buffer[0] + 1) | |
814 | return; | |
815 | snd_usbmidi_input_data(ep, 0, &buffer[2], buffer[0] - 1); | |
816 | } | |
817 | ||
a509574e | 818 | static void snd_usbmidi_novation_output(struct snd_usb_midi_out_endpoint *ep, |
ed4affa5 | 819 | struct urb *urb) |
1da177e4 | 820 | { |
a509574e | 821 | uint8_t *transfer_buffer; |
1da177e4 LT |
822 | int count; |
823 | ||
824 | if (!ep->ports[0].active) | |
825 | return; | |
ed4affa5 | 826 | transfer_buffer = urb->transfer_buffer; |
1da177e4 LT |
827 | count = snd_rawmidi_transmit(ep->ports[0].substream, |
828 | &transfer_buffer[2], | |
829 | ep->max_transfer - 2); | |
830 | if (count < 1) { | |
831 | ep->ports[0].active = 0; | |
832 | return; | |
833 | } | |
834 | transfer_buffer[0] = 0; | |
835 | transfer_buffer[1] = count; | |
ed4affa5 | 836 | urb->transfer_buffer_length = 2 + count; |
1da177e4 LT |
837 | } |
838 | ||
17074c1a | 839 | static const struct usb_protocol_ops snd_usbmidi_novation_ops = { |
1da177e4 LT |
840 | .input = snd_usbmidi_novation_input, |
841 | .output = snd_usbmidi_novation_output, | |
842 | }; | |
843 | ||
844 | /* | |
c7f57216 | 845 | * "raw" protocol: just move raw MIDI bytes from/to the endpoint |
1da177e4 LT |
846 | */ |
847 | ||
a509574e AG |
848 | static void snd_usbmidi_raw_input(struct snd_usb_midi_in_endpoint *ep, |
849 | uint8_t *buffer, int buffer_length) | |
1da177e4 LT |
850 | { |
851 | snd_usbmidi_input_data(ep, 0, buffer, buffer_length); | |
852 | } | |
853 | ||
a509574e | 854 | static void snd_usbmidi_raw_output(struct snd_usb_midi_out_endpoint *ep, |
ed4affa5 | 855 | struct urb *urb) |
1da177e4 LT |
856 | { |
857 | int count; | |
858 | ||
859 | if (!ep->ports[0].active) | |
860 | return; | |
861 | count = snd_rawmidi_transmit(ep->ports[0].substream, | |
ed4affa5 | 862 | urb->transfer_buffer, |
1da177e4 LT |
863 | ep->max_transfer); |
864 | if (count < 1) { | |
865 | ep->ports[0].active = 0; | |
866 | return; | |
867 | } | |
ed4affa5 | 868 | urb->transfer_buffer_length = count; |
1da177e4 LT |
869 | } |
870 | ||
17074c1a | 871 | static const struct usb_protocol_ops snd_usbmidi_raw_ops = { |
6155aff8 CL |
872 | .input = snd_usbmidi_raw_input, |
873 | .output = snd_usbmidi_raw_output, | |
1da177e4 LT |
874 | }; |
875 | ||
1ef0e0a0 KA |
876 | /* |
877 | * FTDI protocol: raw MIDI bytes, but input packets have two modem status bytes. | |
878 | */ | |
879 | ||
a509574e AG |
880 | static void snd_usbmidi_ftdi_input(struct snd_usb_midi_in_endpoint *ep, |
881 | uint8_t *buffer, int buffer_length) | |
1ef0e0a0 KA |
882 | { |
883 | if (buffer_length > 2) | |
884 | snd_usbmidi_input_data(ep, 0, buffer + 2, buffer_length - 2); | |
885 | } | |
886 | ||
17074c1a | 887 | static const struct usb_protocol_ops snd_usbmidi_ftdi_ops = { |
1ef0e0a0 KA |
888 | .input = snd_usbmidi_ftdi_input, |
889 | .output = snd_usbmidi_raw_output, | |
890 | }; | |
891 | ||
030a07e4 KW |
892 | static void snd_usbmidi_us122l_input(struct snd_usb_midi_in_endpoint *ep, |
893 | uint8_t *buffer, int buffer_length) | |
894 | { | |
895 | if (buffer_length != 9) | |
896 | return; | |
897 | buffer_length = 8; | |
898 | while (buffer_length && buffer[buffer_length - 1] == 0xFD) | |
899 | buffer_length--; | |
900 | if (buffer_length) | |
901 | snd_usbmidi_input_data(ep, 0, buffer, buffer_length); | |
902 | } | |
903 | ||
ed4affa5 CL |
904 | static void snd_usbmidi_us122l_output(struct snd_usb_midi_out_endpoint *ep, |
905 | struct urb *urb) | |
030a07e4 KW |
906 | { |
907 | int count; | |
908 | ||
909 | if (!ep->ports[0].active) | |
910 | return; | |
4f4e8f69 PZ |
911 | switch (snd_usb_get_speed(ep->umidi->dev)) { |
912 | case USB_SPEED_HIGH: | |
913 | case USB_SPEED_SUPER: | |
914 | count = 1; | |
915 | break; | |
916 | default: | |
917 | count = 2; | |
918 | } | |
030a07e4 | 919 | count = snd_rawmidi_transmit(ep->ports[0].substream, |
ed4affa5 | 920 | urb->transfer_buffer, |
030a07e4 KW |
921 | count); |
922 | if (count < 1) { | |
923 | ep->ports[0].active = 0; | |
924 | return; | |
925 | } | |
926 | ||
921eebdc KW |
927 | memset(urb->transfer_buffer + count, 0xFD, ep->max_transfer - count); |
928 | urb->transfer_buffer_length = ep->max_transfer; | |
030a07e4 KW |
929 | } |
930 | ||
17074c1a | 931 | static const struct usb_protocol_ops snd_usbmidi_122l_ops = { |
030a07e4 KW |
932 | .input = snd_usbmidi_us122l_input, |
933 | .output = snd_usbmidi_us122l_output, | |
934 | }; | |
935 | ||
1da177e4 LT |
936 | /* |
937 | * Emagic USB MIDI protocol: raw MIDI with "F5 xx" port switching. | |
938 | */ | |
939 | ||
a509574e | 940 | static void snd_usbmidi_emagic_init_out(struct snd_usb_midi_out_endpoint *ep) |
1da177e4 LT |
941 | { |
942 | static const u8 init_data[] = { | |
943 | /* initialization magic: "get version" */ | |
944 | 0xf0, | |
945 | 0x00, 0x20, 0x31, /* Emagic */ | |
946 | 0x64, /* Unitor8 */ | |
947 | 0x0b, /* version number request */ | |
948 | 0x00, /* command version */ | |
949 | 0x00, /* EEPROM, box 0 */ | |
950 | 0xf7 | |
951 | }; | |
952 | send_bulk_static_data(ep, init_data, sizeof(init_data)); | |
953 | /* while we're at it, pour on more magic */ | |
954 | send_bulk_static_data(ep, init_data, sizeof(init_data)); | |
955 | } | |
956 | ||
a509574e | 957 | static void snd_usbmidi_emagic_finish_out(struct snd_usb_midi_out_endpoint *ep) |
1da177e4 LT |
958 | { |
959 | static const u8 finish_data[] = { | |
960 | /* switch to patch mode with last preset */ | |
961 | 0xf0, | |
962 | 0x00, 0x20, 0x31, /* Emagic */ | |
963 | 0x64, /* Unitor8 */ | |
964 | 0x10, /* patch switch command */ | |
965 | 0x00, /* command version */ | |
966 | 0x7f, /* to all boxes */ | |
967 | 0x40, /* last preset in EEPROM */ | |
968 | 0xf7 | |
969 | }; | |
970 | send_bulk_static_data(ep, finish_data, sizeof(finish_data)); | |
971 | } | |
972 | ||
a509574e AG |
973 | static void snd_usbmidi_emagic_input(struct snd_usb_midi_in_endpoint *ep, |
974 | uint8_t *buffer, int buffer_length) | |
1da177e4 | 975 | { |
c347e9fc CL |
976 | int i; |
977 | ||
978 | /* FF indicates end of valid data */ | |
979 | for (i = 0; i < buffer_length; ++i) | |
980 | if (buffer[i] == 0xff) { | |
981 | buffer_length = i; | |
982 | break; | |
983 | } | |
1da177e4 LT |
984 | |
985 | /* handle F5 at end of last buffer */ | |
986 | if (ep->seen_f5) | |
987 | goto switch_port; | |
988 | ||
989 | while (buffer_length > 0) { | |
1da177e4 LT |
990 | /* determine size of data until next F5 */ |
991 | for (i = 0; i < buffer_length; ++i) | |
992 | if (buffer[i] == 0xf5) | |
993 | break; | |
994 | snd_usbmidi_input_data(ep, ep->current_port, buffer, i); | |
995 | buffer += i; | |
996 | buffer_length -= i; | |
997 | ||
998 | if (buffer_length <= 0) | |
999 | break; | |
1000 | /* assert(buffer[0] == 0xf5); */ | |
1001 | ep->seen_f5 = 1; | |
1002 | ++buffer; | |
1003 | --buffer_length; | |
1004 | ||
1005 | switch_port: | |
1006 | if (buffer_length <= 0) | |
1007 | break; | |
1008 | if (buffer[0] < 0x80) { | |
1009 | ep->current_port = (buffer[0] - 1) & 15; | |
1010 | ++buffer; | |
1011 | --buffer_length; | |
1012 | } | |
1013 | ep->seen_f5 = 0; | |
1014 | } | |
1015 | } | |
1016 | ||
a509574e | 1017 | static void snd_usbmidi_emagic_output(struct snd_usb_midi_out_endpoint *ep, |
ed4affa5 | 1018 | struct urb *urb) |
1da177e4 LT |
1019 | { |
1020 | int port0 = ep->current_port; | |
a509574e | 1021 | uint8_t *buf = urb->transfer_buffer; |
1da177e4 LT |
1022 | int buf_free = ep->max_transfer; |
1023 | int length, i; | |
1024 | ||
1025 | for (i = 0; i < 0x10; ++i) { | |
1026 | /* round-robin, starting at the last current port */ | |
1027 | int portnum = (port0 + i) & 15; | |
a509574e | 1028 | struct usbmidi_out_port *port = &ep->ports[portnum]; |
1da177e4 LT |
1029 | |
1030 | if (!port->active) | |
1031 | continue; | |
1032 | if (snd_rawmidi_transmit_peek(port->substream, buf, 1) != 1) { | |
1033 | port->active = 0; | |
1034 | continue; | |
1035 | } | |
1036 | ||
1037 | if (portnum != ep->current_port) { | |
1038 | if (buf_free < 2) | |
1039 | break; | |
1040 | ep->current_port = portnum; | |
1041 | buf[0] = 0xf5; | |
1042 | buf[1] = (portnum + 1) & 15; | |
1043 | buf += 2; | |
1044 | buf_free -= 2; | |
1045 | } | |
1046 | ||
1047 | if (buf_free < 1) | |
1048 | break; | |
1049 | length = snd_rawmidi_transmit(port->substream, buf, buf_free); | |
1050 | if (length > 0) { | |
1051 | buf += length; | |
1052 | buf_free -= length; | |
1053 | if (buf_free < 1) | |
1054 | break; | |
1055 | } | |
1056 | } | |
c347e9fc CL |
1057 | if (buf_free < ep->max_transfer && buf_free > 0) { |
1058 | *buf = 0xff; | |
1059 | --buf_free; | |
1060 | } | |
ed4affa5 | 1061 | urb->transfer_buffer_length = ep->max_transfer - buf_free; |
1da177e4 LT |
1062 | } |
1063 | ||
17074c1a | 1064 | static const struct usb_protocol_ops snd_usbmidi_emagic_ops = { |
1da177e4 LT |
1065 | .input = snd_usbmidi_emagic_input, |
1066 | .output = snd_usbmidi_emagic_output, | |
1067 | .init_out_endpoint = snd_usbmidi_emagic_init_out, | |
1068 | .finish_out_endpoint = snd_usbmidi_emagic_finish_out, | |
1069 | }; | |
1070 | ||
1071 | ||
a509574e | 1072 | static void update_roland_altsetting(struct snd_usb_midi *umidi) |
96f61d9a CL |
1073 | { |
1074 | struct usb_interface *intf; | |
1075 | struct usb_host_interface *hostif; | |
1076 | struct usb_interface_descriptor *intfd; | |
1077 | int is_light_load; | |
1078 | ||
1079 | intf = umidi->iface; | |
1080 | is_light_load = intf->cur_altsetting != intf->altsetting; | |
1081 | if (umidi->roland_load_ctl->private_value == is_light_load) | |
1082 | return; | |
1083 | hostif = &intf->altsetting[umidi->roland_load_ctl->private_value]; | |
1084 | intfd = get_iface_desc(hostif); | |
1085 | snd_usbmidi_input_stop(&umidi->list); | |
d82af9f9 | 1086 | usb_set_interface(umidi->dev, intfd->bInterfaceNumber, |
96f61d9a CL |
1087 | intfd->bAlternateSetting); |
1088 | snd_usbmidi_input_start(&umidi->list); | |
1089 | } | |
1090 | ||
f5f16541 TI |
1091 | static int substream_open(struct snd_rawmidi_substream *substream, int dir, |
1092 | int open) | |
96f61d9a | 1093 | { |
a509574e | 1094 | struct snd_usb_midi *umidi = substream->rmidi->private_data; |
96f61d9a CL |
1095 | struct snd_kcontrol *ctl; |
1096 | ||
59866da9 TI |
1097 | down_read(&umidi->disc_rwsem); |
1098 | if (umidi->disconnected) { | |
1099 | up_read(&umidi->disc_rwsem); | |
f5f16541 | 1100 | return open ? -ENODEV : 0; |
59866da9 TI |
1101 | } |
1102 | ||
96f61d9a CL |
1103 | mutex_lock(&umidi->mutex); |
1104 | if (open) { | |
f5f16541 | 1105 | if (!umidi->opened[0] && !umidi->opened[1]) { |
f5f16541 TI |
1106 | if (umidi->roland_load_ctl) { |
1107 | ctl = umidi->roland_load_ctl; | |
a509574e AG |
1108 | ctl->vd[0].access |= |
1109 | SNDRV_CTL_ELEM_ACCESS_INACTIVE; | |
f5f16541 | 1110 | snd_ctl_notify(umidi->card, |
96f61d9a | 1111 | SNDRV_CTL_EVENT_MASK_INFO, &ctl->id); |
f5f16541 TI |
1112 | update_roland_altsetting(umidi); |
1113 | } | |
96f61d9a | 1114 | } |
f5f16541 TI |
1115 | umidi->opened[dir]++; |
1116 | if (umidi->opened[1]) | |
1117 | snd_usbmidi_input_start(&umidi->list); | |
96f61d9a | 1118 | } else { |
f5f16541 TI |
1119 | umidi->opened[dir]--; |
1120 | if (!umidi->opened[1]) | |
1121 | snd_usbmidi_input_stop(&umidi->list); | |
1122 | if (!umidi->opened[0] && !umidi->opened[1]) { | |
1123 | if (umidi->roland_load_ctl) { | |
1124 | ctl = umidi->roland_load_ctl; | |
a509574e AG |
1125 | ctl->vd[0].access &= |
1126 | ~SNDRV_CTL_ELEM_ACCESS_INACTIVE; | |
f5f16541 | 1127 | snd_ctl_notify(umidi->card, |
96f61d9a | 1128 | SNDRV_CTL_EVENT_MASK_INFO, &ctl->id); |
f5f16541 | 1129 | } |
96f61d9a CL |
1130 | } |
1131 | } | |
1132 | mutex_unlock(&umidi->mutex); | |
59866da9 | 1133 | up_read(&umidi->disc_rwsem); |
f5f16541 | 1134 | return 0; |
96f61d9a CL |
1135 | } |
1136 | ||
86e07d34 | 1137 | static int snd_usbmidi_output_open(struct snd_rawmidi_substream *substream) |
1da177e4 | 1138 | { |
a509574e AG |
1139 | struct snd_usb_midi *umidi = substream->rmidi->private_data; |
1140 | struct usbmidi_out_port *port = NULL; | |
1da177e4 LT |
1141 | int i, j; |
1142 | ||
1143 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) | |
1144 | if (umidi->endpoints[i].out) | |
1145 | for (j = 0; j < 0x10; ++j) | |
1146 | if (umidi->endpoints[i].out->ports[j].substream == substream) { | |
1147 | port = &umidi->endpoints[i].out->ports[j]; | |
1148 | break; | |
1149 | } | |
1150 | if (!port) { | |
1151 | snd_BUG(); | |
1152 | return -ENXIO; | |
1153 | } | |
59866da9 | 1154 | |
1da177e4 LT |
1155 | substream->runtime->private_data = port; |
1156 | port->state = STATE_UNKNOWN; | |
f5f16541 | 1157 | return substream_open(substream, 0, 1); |
1da177e4 LT |
1158 | } |
1159 | ||
86e07d34 | 1160 | static int snd_usbmidi_output_close(struct snd_rawmidi_substream *substream) |
1da177e4 | 1161 | { |
f5f16541 | 1162 | return substream_open(substream, 0, 0); |
1da177e4 LT |
1163 | } |
1164 | ||
a509574e AG |
1165 | static void snd_usbmidi_output_trigger(struct snd_rawmidi_substream *substream, |
1166 | int up) | |
1da177e4 | 1167 | { |
a509574e AG |
1168 | struct usbmidi_out_port *port = |
1169 | (struct usbmidi_out_port *)substream->runtime->private_data; | |
1da177e4 LT |
1170 | |
1171 | port->active = up; | |
1172 | if (up) { | |
d82af9f9 | 1173 | if (port->ep->umidi->disconnected) { |
1da177e4 LT |
1174 | /* gobble up remaining bytes to prevent wait in |
1175 | * snd_rawmidi_drain_output */ | |
1176 | while (!snd_rawmidi_transmit_empty(substream)) | |
1177 | snd_rawmidi_transmit_ack(substream, 1); | |
1178 | return; | |
1179 | } | |
1f04128a | 1180 | tasklet_schedule(&port->ep->tasklet); |
1da177e4 LT |
1181 | } |
1182 | } | |
1183 | ||
a65dd997 CL |
1184 | static void snd_usbmidi_output_drain(struct snd_rawmidi_substream *substream) |
1185 | { | |
a509574e | 1186 | struct usbmidi_out_port *port = substream->runtime->private_data; |
a65dd997 CL |
1187 | struct snd_usb_midi_out_endpoint *ep = port->ep; |
1188 | unsigned int drain_urbs; | |
1189 | DEFINE_WAIT(wait); | |
1190 | long timeout = msecs_to_jiffies(50); | |
1191 | ||
29aac005 TI |
1192 | if (ep->umidi->disconnected) |
1193 | return; | |
a65dd997 CL |
1194 | /* |
1195 | * The substream buffer is empty, but some data might still be in the | |
1196 | * currently active URBs, so we have to wait for those to complete. | |
1197 | */ | |
1198 | spin_lock_irq(&ep->buffer_lock); | |
1199 | drain_urbs = ep->active_urbs; | |
1200 | if (drain_urbs) { | |
1201 | ep->drain_urbs |= drain_urbs; | |
1202 | do { | |
1203 | prepare_to_wait(&ep->drain_wait, &wait, | |
1204 | TASK_UNINTERRUPTIBLE); | |
1205 | spin_unlock_irq(&ep->buffer_lock); | |
1206 | timeout = schedule_timeout(timeout); | |
1207 | spin_lock_irq(&ep->buffer_lock); | |
1208 | drain_urbs &= ep->drain_urbs; | |
1209 | } while (drain_urbs && timeout); | |
1210 | finish_wait(&ep->drain_wait, &wait); | |
1211 | } | |
1212 | spin_unlock_irq(&ep->buffer_lock); | |
1213 | } | |
1214 | ||
86e07d34 | 1215 | static int snd_usbmidi_input_open(struct snd_rawmidi_substream *substream) |
1da177e4 | 1216 | { |
f5f16541 | 1217 | return substream_open(substream, 1, 1); |
1da177e4 LT |
1218 | } |
1219 | ||
86e07d34 | 1220 | static int snd_usbmidi_input_close(struct snd_rawmidi_substream *substream) |
1da177e4 | 1221 | { |
f5f16541 | 1222 | return substream_open(substream, 1, 0); |
1da177e4 LT |
1223 | } |
1224 | ||
a509574e AG |
1225 | static void snd_usbmidi_input_trigger(struct snd_rawmidi_substream *substream, |
1226 | int up) | |
1da177e4 | 1227 | { |
a509574e | 1228 | struct snd_usb_midi *umidi = substream->rmidi->private_data; |
1da177e4 LT |
1229 | |
1230 | if (up) | |
1231 | set_bit(substream->number, &umidi->input_triggered); | |
1232 | else | |
1233 | clear_bit(substream->number, &umidi->input_triggered); | |
1234 | } | |
1235 | ||
86e07d34 | 1236 | static struct snd_rawmidi_ops snd_usbmidi_output_ops = { |
1da177e4 LT |
1237 | .open = snd_usbmidi_output_open, |
1238 | .close = snd_usbmidi_output_close, | |
1239 | .trigger = snd_usbmidi_output_trigger, | |
a65dd997 | 1240 | .drain = snd_usbmidi_output_drain, |
1da177e4 LT |
1241 | }; |
1242 | ||
86e07d34 | 1243 | static struct snd_rawmidi_ops snd_usbmidi_input_ops = { |
1da177e4 LT |
1244 | .open = snd_usbmidi_input_open, |
1245 | .close = snd_usbmidi_input_close, | |
1246 | .trigger = snd_usbmidi_input_trigger | |
1247 | }; | |
1248 | ||
ed4affa5 CL |
1249 | static void free_urb_and_buffer(struct snd_usb_midi *umidi, struct urb *urb, |
1250 | unsigned int buffer_length) | |
1251 | { | |
997ea58e DM |
1252 | usb_free_coherent(umidi->dev, buffer_length, |
1253 | urb->transfer_buffer, urb->transfer_dma); | |
ed4affa5 CL |
1254 | usb_free_urb(urb); |
1255 | } | |
1256 | ||
1da177e4 LT |
1257 | /* |
1258 | * Frees an input endpoint. | |
1259 | * May be called when ep hasn't been initialized completely. | |
1260 | */ | |
a509574e | 1261 | static void snd_usbmidi_in_endpoint_delete(struct snd_usb_midi_in_endpoint *ep) |
1da177e4 | 1262 | { |
4773d1fb CL |
1263 | unsigned int i; |
1264 | ||
ed4affa5 CL |
1265 | for (i = 0; i < INPUT_URBS; ++i) |
1266 | if (ep->urbs[i]) | |
1267 | free_urb_and_buffer(ep->umidi, ep->urbs[i], | |
1268 | ep->urbs[i]->transfer_buffer_length); | |
1da177e4 LT |
1269 | kfree(ep); |
1270 | } | |
1271 | ||
1272 | /* | |
1273 | * Creates an input endpoint. | |
1274 | */ | |
a509574e AG |
1275 | static int snd_usbmidi_in_endpoint_create(struct snd_usb_midi *umidi, |
1276 | struct snd_usb_midi_endpoint_info *ep_info, | |
1277 | struct snd_usb_midi_endpoint *rep) | |
1da177e4 | 1278 | { |
a509574e AG |
1279 | struct snd_usb_midi_in_endpoint *ep; |
1280 | void *buffer; | |
1da177e4 LT |
1281 | unsigned int pipe; |
1282 | int length; | |
4773d1fb | 1283 | unsigned int i; |
1da177e4 LT |
1284 | |
1285 | rep->in = NULL; | |
561b220a | 1286 | ep = kzalloc(sizeof(*ep), GFP_KERNEL); |
1da177e4 LT |
1287 | if (!ep) |
1288 | return -ENOMEM; | |
1289 | ep->umidi = umidi; | |
1290 | ||
4773d1fb CL |
1291 | for (i = 0; i < INPUT_URBS; ++i) { |
1292 | ep->urbs[i] = usb_alloc_urb(0, GFP_KERNEL); | |
1293 | if (!ep->urbs[i]) { | |
1294 | snd_usbmidi_in_endpoint_delete(ep); | |
1295 | return -ENOMEM; | |
1296 | } | |
1da177e4 LT |
1297 | } |
1298 | if (ep_info->in_interval) | |
d82af9f9 | 1299 | pipe = usb_rcvintpipe(umidi->dev, ep_info->in_ep); |
1da177e4 | 1300 | else |
d82af9f9 CL |
1301 | pipe = usb_rcvbulkpipe(umidi->dev, ep_info->in_ep); |
1302 | length = usb_maxpacket(umidi->dev, pipe, 0); | |
4773d1fb | 1303 | for (i = 0; i < INPUT_URBS; ++i) { |
997ea58e DM |
1304 | buffer = usb_alloc_coherent(umidi->dev, length, GFP_KERNEL, |
1305 | &ep->urbs[i]->transfer_dma); | |
4773d1fb CL |
1306 | if (!buffer) { |
1307 | snd_usbmidi_in_endpoint_delete(ep); | |
1308 | return -ENOMEM; | |
1309 | } | |
1310 | if (ep_info->in_interval) | |
d82af9f9 | 1311 | usb_fill_int_urb(ep->urbs[i], umidi->dev, |
4773d1fb CL |
1312 | pipe, buffer, length, |
1313 | snd_usbmidi_in_urb_complete, | |
1314 | ep, ep_info->in_interval); | |
1315 | else | |
d82af9f9 | 1316 | usb_fill_bulk_urb(ep->urbs[i], umidi->dev, |
4773d1fb CL |
1317 | pipe, buffer, length, |
1318 | snd_usbmidi_in_urb_complete, ep); | |
1319 | ep->urbs[i]->transfer_flags = URB_NO_TRANSFER_DMA_MAP; | |
1da177e4 | 1320 | } |
1da177e4 LT |
1321 | |
1322 | rep->in = ep; | |
1323 | return 0; | |
1324 | } | |
1325 | ||
1da177e4 LT |
1326 | /* |
1327 | * Frees an output endpoint. | |
1328 | * May be called when ep hasn't been initialized completely. | |
1329 | */ | |
29aac005 | 1330 | static void snd_usbmidi_out_endpoint_clear(struct snd_usb_midi_out_endpoint *ep) |
1da177e4 | 1331 | { |
ed4affa5 CL |
1332 | unsigned int i; |
1333 | ||
1334 | for (i = 0; i < OUTPUT_URBS; ++i) | |
29aac005 | 1335 | if (ep->urbs[i].urb) { |
ed4affa5 CL |
1336 | free_urb_and_buffer(ep->umidi, ep->urbs[i].urb, |
1337 | ep->max_transfer); | |
29aac005 TI |
1338 | ep->urbs[i].urb = NULL; |
1339 | } | |
1340 | } | |
1341 | ||
1342 | static void snd_usbmidi_out_endpoint_delete(struct snd_usb_midi_out_endpoint *ep) | |
1343 | { | |
1344 | snd_usbmidi_out_endpoint_clear(ep); | |
1da177e4 LT |
1345 | kfree(ep); |
1346 | } | |
1347 | ||
1348 | /* | |
1349 | * Creates an output endpoint, and initializes output ports. | |
1350 | */ | |
a509574e AG |
1351 | static int snd_usbmidi_out_endpoint_create(struct snd_usb_midi *umidi, |
1352 | struct snd_usb_midi_endpoint_info *ep_info, | |
1353 | struct snd_usb_midi_endpoint *rep) | |
1da177e4 | 1354 | { |
a509574e | 1355 | struct snd_usb_midi_out_endpoint *ep; |
ed4affa5 | 1356 | unsigned int i; |
1da177e4 | 1357 | unsigned int pipe; |
a509574e | 1358 | void *buffer; |
1da177e4 LT |
1359 | |
1360 | rep->out = NULL; | |
561b220a | 1361 | ep = kzalloc(sizeof(*ep), GFP_KERNEL); |
1da177e4 LT |
1362 | if (!ep) |
1363 | return -ENOMEM; | |
1364 | ep->umidi = umidi; | |
1365 | ||
ed4affa5 CL |
1366 | for (i = 0; i < OUTPUT_URBS; ++i) { |
1367 | ep->urbs[i].urb = usb_alloc_urb(0, GFP_KERNEL); | |
1368 | if (!ep->urbs[i].urb) { | |
1369 | snd_usbmidi_out_endpoint_delete(ep); | |
1370 | return -ENOMEM; | |
1371 | } | |
1372 | ep->urbs[i].ep = ep; | |
1da177e4 | 1373 | } |
a6a712ae | 1374 | if (ep_info->out_interval) |
d82af9f9 | 1375 | pipe = usb_sndintpipe(umidi->dev, ep_info->out_ep); |
a6a712ae | 1376 | else |
d82af9f9 | 1377 | pipe = usb_sndbulkpipe(umidi->dev, ep_info->out_ep); |
f167e1d0 CL |
1378 | switch (umidi->usb_id) { |
1379 | default: | |
d82af9f9 | 1380 | ep->max_transfer = usb_maxpacket(umidi->dev, pipe, 1); |
f167e1d0 CL |
1381 | break; |
1382 | /* | |
1383 | * Various chips declare a packet size larger than 4 bytes, but | |
1384 | * do not actually work with larger packets: | |
1385 | */ | |
98d362be | 1386 | case USB_ID(0x0a67, 0x5011): /* Medeli DD305 */ |
f167e1d0 CL |
1387 | case USB_ID(0x0a92, 0x1020): /* ESI M4U */ |
1388 | case USB_ID(0x1430, 0x474b): /* RedOctane GH MIDI INTERFACE */ | |
1389 | case USB_ID(0x15ca, 0x0101): /* Textech USB Midi Cable */ | |
1390 | case USB_ID(0x15ca, 0x1806): /* Textech USB Midi Cable */ | |
1391 | case USB_ID(0x1a86, 0x752d): /* QinHeng CH345 "USB2.0-MIDI" */ | |
49c039f0 | 1392 | case USB_ID(0xfc08, 0x0101): /* Unknown vendor Cable */ |
f167e1d0 CL |
1393 | ep->max_transfer = 4; |
1394 | break; | |
921eebdc KW |
1395 | /* |
1396 | * Some devices only work with 9 bytes packet size: | |
1397 | */ | |
1398 | case USB_ID(0x0644, 0x800E): /* Tascam US-122L */ | |
1399 | case USB_ID(0x0644, 0x800F): /* Tascam US-144 */ | |
1400 | ep->max_transfer = 9; | |
1401 | break; | |
f167e1d0 | 1402 | } |
ed4affa5 | 1403 | for (i = 0; i < OUTPUT_URBS; ++i) { |
997ea58e DM |
1404 | buffer = usb_alloc_coherent(umidi->dev, |
1405 | ep->max_transfer, GFP_KERNEL, | |
1406 | &ep->urbs[i].urb->transfer_dma); | |
ed4affa5 CL |
1407 | if (!buffer) { |
1408 | snd_usbmidi_out_endpoint_delete(ep); | |
1409 | return -ENOMEM; | |
1410 | } | |
1411 | if (ep_info->out_interval) | |
d82af9f9 | 1412 | usb_fill_int_urb(ep->urbs[i].urb, umidi->dev, |
ed4affa5 CL |
1413 | pipe, buffer, ep->max_transfer, |
1414 | snd_usbmidi_out_urb_complete, | |
1415 | &ep->urbs[i], ep_info->out_interval); | |
1416 | else | |
d82af9f9 | 1417 | usb_fill_bulk_urb(ep->urbs[i].urb, umidi->dev, |
ed4affa5 CL |
1418 | pipe, buffer, ep->max_transfer, |
1419 | snd_usbmidi_out_urb_complete, | |
1420 | &ep->urbs[i]); | |
1421 | ep->urbs[i].urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP; | |
1da177e4 | 1422 | } |
1da177e4 LT |
1423 | |
1424 | spin_lock_init(&ep->buffer_lock); | |
1425 | tasklet_init(&ep->tasklet, snd_usbmidi_out_tasklet, (unsigned long)ep); | |
a65dd997 | 1426 | init_waitqueue_head(&ep->drain_wait); |
1da177e4 LT |
1427 | |
1428 | for (i = 0; i < 0x10; ++i) | |
1429 | if (ep_info->out_cables & (1 << i)) { | |
1430 | ep->ports[i].ep = ep; | |
1431 | ep->ports[i].cable = i << 4; | |
1432 | } | |
1433 | ||
1434 | if (umidi->usb_protocol_ops->init_out_endpoint) | |
1435 | umidi->usb_protocol_ops->init_out_endpoint(ep); | |
1436 | ||
1437 | rep->out = ep; | |
1438 | return 0; | |
1439 | } | |
1440 | ||
1441 | /* | |
1442 | * Frees everything. | |
1443 | */ | |
a509574e | 1444 | static void snd_usbmidi_free(struct snd_usb_midi *umidi) |
1da177e4 LT |
1445 | { |
1446 | int i; | |
1447 | ||
1448 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { | |
a509574e | 1449 | struct snd_usb_midi_endpoint *ep = &umidi->endpoints[i]; |
1da177e4 LT |
1450 | if (ep->out) |
1451 | snd_usbmidi_out_endpoint_delete(ep->out); | |
1452 | if (ep->in) | |
1453 | snd_usbmidi_in_endpoint_delete(ep->in); | |
1454 | } | |
96f61d9a | 1455 | mutex_destroy(&umidi->mutex); |
1da177e4 LT |
1456 | kfree(umidi); |
1457 | } | |
1458 | ||
1459 | /* | |
1460 | * Unlinks all URBs (must be done before the usb_device is deleted). | |
1461 | */ | |
a509574e | 1462 | void snd_usbmidi_disconnect(struct list_head *p) |
1da177e4 | 1463 | { |
a509574e | 1464 | struct snd_usb_midi *umidi; |
4773d1fb | 1465 | unsigned int i, j; |
1da177e4 | 1466 | |
86e07d34 | 1467 | umidi = list_entry(p, struct snd_usb_midi, list); |
c0792e00 TI |
1468 | /* |
1469 | * an URB's completion handler may start the timer and | |
1470 | * a timer may submit an URB. To reliably break the cycle | |
1471 | * a flag under lock must be used | |
1472 | */ | |
59866da9 | 1473 | down_write(&umidi->disc_rwsem); |
c0792e00 TI |
1474 | spin_lock_irq(&umidi->disc_lock); |
1475 | umidi->disconnected = 1; | |
1476 | spin_unlock_irq(&umidi->disc_lock); | |
59866da9 TI |
1477 | up_write(&umidi->disc_rwsem); |
1478 | ||
1da177e4 | 1479 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { |
a509574e | 1480 | struct snd_usb_midi_endpoint *ep = &umidi->endpoints[i]; |
c8846970 CL |
1481 | if (ep->out) |
1482 | tasklet_kill(&ep->out->tasklet); | |
ed4affa5 CL |
1483 | if (ep->out) { |
1484 | for (j = 0; j < OUTPUT_URBS; ++j) | |
1485 | usb_kill_urb(ep->out->urbs[j].urb); | |
1da177e4 LT |
1486 | if (umidi->usb_protocol_ops->finish_out_endpoint) |
1487 | umidi->usb_protocol_ops->finish_out_endpoint(ep->out); | |
29aac005 TI |
1488 | ep->out->active_urbs = 0; |
1489 | if (ep->out->drain_urbs) { | |
1490 | ep->out->drain_urbs = 0; | |
1491 | wake_up(&ep->out->drain_wait); | |
1492 | } | |
1da177e4 | 1493 | } |
f5e135af | 1494 | if (ep->in) |
4773d1fb CL |
1495 | for (j = 0; j < INPUT_URBS; ++j) |
1496 | usb_kill_urb(ep->in->urbs[j]); | |
7a17daae | 1497 | /* free endpoints here; later call can result in Oops */ |
29aac005 TI |
1498 | if (ep->out) |
1499 | snd_usbmidi_out_endpoint_clear(ep->out); | |
7a17daae TI |
1500 | if (ep->in) { |
1501 | snd_usbmidi_in_endpoint_delete(ep->in); | |
1502 | ep->in = NULL; | |
1503 | } | |
1da177e4 | 1504 | } |
c0792e00 | 1505 | del_timer_sync(&umidi->error_timer); |
1da177e4 | 1506 | } |
ed136aca | 1507 | EXPORT_SYMBOL(snd_usbmidi_disconnect); |
1da177e4 | 1508 | |
86e07d34 | 1509 | static void snd_usbmidi_rawmidi_free(struct snd_rawmidi *rmidi) |
1da177e4 | 1510 | { |
a509574e | 1511 | struct snd_usb_midi *umidi = rmidi->private_data; |
1da177e4 LT |
1512 | snd_usbmidi_free(umidi); |
1513 | } | |
1514 | ||
a509574e AG |
1515 | static struct snd_rawmidi_substream *snd_usbmidi_find_substream(struct snd_usb_midi *umidi, |
1516 | int stream, | |
1517 | int number) | |
1da177e4 | 1518 | { |
88766f04 | 1519 | struct snd_rawmidi_substream *substream; |
1da177e4 | 1520 | |
a509574e AG |
1521 | list_for_each_entry(substream, &umidi->rmidi->streams[stream].substreams, |
1522 | list) { | |
1da177e4 LT |
1523 | if (substream->number == number) |
1524 | return substream; | |
1525 | } | |
1526 | return NULL; | |
1527 | } | |
1528 | ||
1529 | /* | |
1530 | * This list specifies names for ports that do not fit into the standard | |
1531 | * "(product) MIDI (n)" schema because they aren't external MIDI ports, | |
1532 | * such as internal control or synthesizer ports. | |
1533 | */ | |
a7b928ac | 1534 | static struct port_info { |
27d10f56 | 1535 | u32 id; |
a7b928ac CL |
1536 | short int port; |
1537 | short int voices; | |
1538 | const char *name; | |
1539 | unsigned int seq_flags; | |
1540 | } snd_usbmidi_port_info[] = { | |
1541 | #define PORT_INFO(vendor, product, num, name_, voices_, flags) \ | |
1542 | { .id = USB_ID(vendor, product), \ | |
1543 | .port = num, .voices = voices_, \ | |
1544 | .name = name_, .seq_flags = flags } | |
1545 | #define EXTERNAL_PORT(vendor, product, num, name) \ | |
1546 | PORT_INFO(vendor, product, num, name, 0, \ | |
1547 | SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | \ | |
1548 | SNDRV_SEQ_PORT_TYPE_HARDWARE | \ | |
1549 | SNDRV_SEQ_PORT_TYPE_PORT) | |
1550 | #define CONTROL_PORT(vendor, product, num, name) \ | |
1551 | PORT_INFO(vendor, product, num, name, 0, \ | |
1552 | SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | \ | |
1553 | SNDRV_SEQ_PORT_TYPE_HARDWARE) | |
49f4b4d1 CL |
1554 | #define GM_SYNTH_PORT(vendor, product, num, name, voices) \ |
1555 | PORT_INFO(vendor, product, num, name, voices, \ | |
1556 | SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | \ | |
1557 | SNDRV_SEQ_PORT_TYPE_MIDI_GM | \ | |
1558 | SNDRV_SEQ_PORT_TYPE_HARDWARE | \ | |
1559 | SNDRV_SEQ_PORT_TYPE_SYNTHESIZER) | |
a7b928ac CL |
1560 | #define ROLAND_SYNTH_PORT(vendor, product, num, name, voices) \ |
1561 | PORT_INFO(vendor, product, num, name, voices, \ | |
1562 | SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | \ | |
1563 | SNDRV_SEQ_PORT_TYPE_MIDI_GM | \ | |
1564 | SNDRV_SEQ_PORT_TYPE_MIDI_GM2 | \ | |
1565 | SNDRV_SEQ_PORT_TYPE_MIDI_GS | \ | |
1566 | SNDRV_SEQ_PORT_TYPE_MIDI_XG | \ | |
1567 | SNDRV_SEQ_PORT_TYPE_HARDWARE | \ | |
1568 | SNDRV_SEQ_PORT_TYPE_SYNTHESIZER) | |
1569 | #define SOUNDCANVAS_PORT(vendor, product, num, name, voices) \ | |
1570 | PORT_INFO(vendor, product, num, name, voices, \ | |
1571 | SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | \ | |
1572 | SNDRV_SEQ_PORT_TYPE_MIDI_GM | \ | |
1573 | SNDRV_SEQ_PORT_TYPE_MIDI_GM2 | \ | |
1574 | SNDRV_SEQ_PORT_TYPE_MIDI_GS | \ | |
1575 | SNDRV_SEQ_PORT_TYPE_MIDI_XG | \ | |
1576 | SNDRV_SEQ_PORT_TYPE_MIDI_MT32 | \ | |
1577 | SNDRV_SEQ_PORT_TYPE_HARDWARE | \ | |
1578 | SNDRV_SEQ_PORT_TYPE_SYNTHESIZER) | |
49f4b4d1 CL |
1579 | /* Yamaha MOTIF XF */ |
1580 | GM_SYNTH_PORT(0x0499, 0x105c, 0, "%s Tone Generator", 128), | |
1581 | CONTROL_PORT(0x0499, 0x105c, 1, "%s Remote Control"), | |
1582 | EXTERNAL_PORT(0x0499, 0x105c, 2, "%s Thru"), | |
1583 | CONTROL_PORT(0x0499, 0x105c, 3, "%s Editor"), | |
1da177e4 | 1584 | /* Roland UA-100 */ |
a7b928ac | 1585 | CONTROL_PORT(0x0582, 0x0000, 2, "%s Control"), |
1da177e4 | 1586 | /* Roland SC-8850 */ |
a7b928ac CL |
1587 | SOUNDCANVAS_PORT(0x0582, 0x0003, 0, "%s Part A", 128), |
1588 | SOUNDCANVAS_PORT(0x0582, 0x0003, 1, "%s Part B", 128), | |
1589 | SOUNDCANVAS_PORT(0x0582, 0x0003, 2, "%s Part C", 128), | |
1590 | SOUNDCANVAS_PORT(0x0582, 0x0003, 3, "%s Part D", 128), | |
1591 | EXTERNAL_PORT(0x0582, 0x0003, 4, "%s MIDI 1"), | |
1592 | EXTERNAL_PORT(0x0582, 0x0003, 5, "%s MIDI 2"), | |
1da177e4 | 1593 | /* Roland U-8 */ |
a7b928ac CL |
1594 | EXTERNAL_PORT(0x0582, 0x0004, 0, "%s MIDI"), |
1595 | CONTROL_PORT(0x0582, 0x0004, 1, "%s Control"), | |
1da177e4 | 1596 | /* Roland SC-8820 */ |
a7b928ac CL |
1597 | SOUNDCANVAS_PORT(0x0582, 0x0007, 0, "%s Part A", 64), |
1598 | SOUNDCANVAS_PORT(0x0582, 0x0007, 1, "%s Part B", 64), | |
1599 | EXTERNAL_PORT(0x0582, 0x0007, 2, "%s MIDI"), | |
1da177e4 | 1600 | /* Roland SK-500 */ |
a7b928ac CL |
1601 | SOUNDCANVAS_PORT(0x0582, 0x000b, 0, "%s Part A", 64), |
1602 | SOUNDCANVAS_PORT(0x0582, 0x000b, 1, "%s Part B", 64), | |
1603 | EXTERNAL_PORT(0x0582, 0x000b, 2, "%s MIDI"), | |
1da177e4 | 1604 | /* Roland SC-D70 */ |
a7b928ac CL |
1605 | SOUNDCANVAS_PORT(0x0582, 0x000c, 0, "%s Part A", 64), |
1606 | SOUNDCANVAS_PORT(0x0582, 0x000c, 1, "%s Part B", 64), | |
1607 | EXTERNAL_PORT(0x0582, 0x000c, 2, "%s MIDI"), | |
1da177e4 | 1608 | /* Edirol UM-880 */ |
a7b928ac | 1609 | CONTROL_PORT(0x0582, 0x0014, 8, "%s Control"), |
1da177e4 | 1610 | /* Edirol SD-90 */ |
a7b928ac CL |
1611 | ROLAND_SYNTH_PORT(0x0582, 0x0016, 0, "%s Part A", 128), |
1612 | ROLAND_SYNTH_PORT(0x0582, 0x0016, 1, "%s Part B", 128), | |
1613 | EXTERNAL_PORT(0x0582, 0x0016, 2, "%s MIDI 1"), | |
1614 | EXTERNAL_PORT(0x0582, 0x0016, 3, "%s MIDI 2"), | |
1da177e4 | 1615 | /* Edirol UM-550 */ |
a7b928ac | 1616 | CONTROL_PORT(0x0582, 0x0023, 5, "%s Control"), |
1da177e4 | 1617 | /* Edirol SD-20 */ |
a7b928ac CL |
1618 | ROLAND_SYNTH_PORT(0x0582, 0x0027, 0, "%s Part A", 64), |
1619 | ROLAND_SYNTH_PORT(0x0582, 0x0027, 1, "%s Part B", 64), | |
1620 | EXTERNAL_PORT(0x0582, 0x0027, 2, "%s MIDI"), | |
1da177e4 | 1621 | /* Edirol SD-80 */ |
a7b928ac CL |
1622 | ROLAND_SYNTH_PORT(0x0582, 0x0029, 0, "%s Part A", 128), |
1623 | ROLAND_SYNTH_PORT(0x0582, 0x0029, 1, "%s Part B", 128), | |
1624 | EXTERNAL_PORT(0x0582, 0x0029, 2, "%s MIDI 1"), | |
1625 | EXTERNAL_PORT(0x0582, 0x0029, 3, "%s MIDI 2"), | |
1da177e4 | 1626 | /* Edirol UA-700 */ |
a7b928ac CL |
1627 | EXTERNAL_PORT(0x0582, 0x002b, 0, "%s MIDI"), |
1628 | CONTROL_PORT(0x0582, 0x002b, 1, "%s Control"), | |
1da177e4 | 1629 | /* Roland VariOS */ |
a7b928ac CL |
1630 | EXTERNAL_PORT(0x0582, 0x002f, 0, "%s MIDI"), |
1631 | EXTERNAL_PORT(0x0582, 0x002f, 1, "%s External MIDI"), | |
1632 | EXTERNAL_PORT(0x0582, 0x002f, 2, "%s Sync"), | |
1da177e4 | 1633 | /* Edirol PCR */ |
a7b928ac CL |
1634 | EXTERNAL_PORT(0x0582, 0x0033, 0, "%s MIDI"), |
1635 | EXTERNAL_PORT(0x0582, 0x0033, 1, "%s 1"), | |
1636 | EXTERNAL_PORT(0x0582, 0x0033, 2, "%s 2"), | |
1da177e4 | 1637 | /* BOSS GS-10 */ |
a7b928ac CL |
1638 | EXTERNAL_PORT(0x0582, 0x003b, 0, "%s MIDI"), |
1639 | CONTROL_PORT(0x0582, 0x003b, 1, "%s Control"), | |
1da177e4 | 1640 | /* Edirol UA-1000 */ |
a7b928ac CL |
1641 | EXTERNAL_PORT(0x0582, 0x0044, 0, "%s MIDI"), |
1642 | CONTROL_PORT(0x0582, 0x0044, 1, "%s Control"), | |
1da177e4 | 1643 | /* Edirol UR-80 */ |
a7b928ac CL |
1644 | EXTERNAL_PORT(0x0582, 0x0048, 0, "%s MIDI"), |
1645 | EXTERNAL_PORT(0x0582, 0x0048, 1, "%s 1"), | |
1646 | EXTERNAL_PORT(0x0582, 0x0048, 2, "%s 2"), | |
1da177e4 | 1647 | /* Edirol PCR-A */ |
a7b928ac CL |
1648 | EXTERNAL_PORT(0x0582, 0x004d, 0, "%s MIDI"), |
1649 | EXTERNAL_PORT(0x0582, 0x004d, 1, "%s 1"), | |
1650 | EXTERNAL_PORT(0x0582, 0x004d, 2, "%s 2"), | |
a968782e CL |
1651 | /* BOSS GT-PRO */ |
1652 | CONTROL_PORT(0x0582, 0x0089, 0, "%s Control"), | |
7c79b768 | 1653 | /* Edirol UM-3EX */ |
a7b928ac | 1654 | CONTROL_PORT(0x0582, 0x009a, 3, "%s Control"), |
a968782e CL |
1655 | /* Roland VG-99 */ |
1656 | CONTROL_PORT(0x0582, 0x00b2, 0, "%s Control"), | |
1657 | EXTERNAL_PORT(0x0582, 0x00b2, 1, "%s MIDI"), | |
1658 | /* Cakewalk Sonar V-Studio 100 */ | |
1659 | EXTERNAL_PORT(0x0582, 0x00eb, 0, "%s MIDI"), | |
1660 | CONTROL_PORT(0x0582, 0x00eb, 1, "%s Control"), | |
1661 | /* Roland VB-99 */ | |
1662 | CONTROL_PORT(0x0582, 0x0102, 0, "%s Control"), | |
1663 | EXTERNAL_PORT(0x0582, 0x0102, 1, "%s MIDI"), | |
1664 | /* Roland A-PRO */ | |
1665 | EXTERNAL_PORT(0x0582, 0x010f, 0, "%s MIDI"), | |
1666 | CONTROL_PORT(0x0582, 0x010f, 1, "%s 1"), | |
1667 | CONTROL_PORT(0x0582, 0x010f, 2, "%s 2"), | |
1668 | /* Roland SD-50 */ | |
1669 | ROLAND_SYNTH_PORT(0x0582, 0x0114, 0, "%s Synth", 128), | |
1670 | EXTERNAL_PORT(0x0582, 0x0114, 1, "%s MIDI"), | |
1671 | CONTROL_PORT(0x0582, 0x0114, 2, "%s Control"), | |
1672 | /* Roland OCTA-CAPTURE */ | |
1673 | EXTERNAL_PORT(0x0582, 0x0120, 0, "%s MIDI"), | |
1674 | CONTROL_PORT(0x0582, 0x0120, 1, "%s Control"), | |
1675 | EXTERNAL_PORT(0x0582, 0x0121, 0, "%s MIDI"), | |
1676 | CONTROL_PORT(0x0582, 0x0121, 1, "%s Control"), | |
1677 | /* Roland SPD-SX */ | |
1678 | CONTROL_PORT(0x0582, 0x0145, 0, "%s Control"), | |
1679 | EXTERNAL_PORT(0x0582, 0x0145, 1, "%s MIDI"), | |
1680 | /* Roland A-Series */ | |
1681 | CONTROL_PORT(0x0582, 0x0156, 0, "%s Keyboard"), | |
1682 | EXTERNAL_PORT(0x0582, 0x0156, 1, "%s MIDI"), | |
1683 | /* Roland INTEGRA-7 */ | |
1684 | ROLAND_SYNTH_PORT(0x0582, 0x015b, 0, "%s Synth", 128), | |
1685 | CONTROL_PORT(0x0582, 0x015b, 1, "%s Control"), | |
1da177e4 | 1686 | /* M-Audio MidiSport 8x8 */ |
a7b928ac CL |
1687 | CONTROL_PORT(0x0763, 0x1031, 8, "%s Control"), |
1688 | CONTROL_PORT(0x0763, 0x1033, 8, "%s Control"), | |
1da177e4 | 1689 | /* MOTU Fastlane */ |
a7b928ac CL |
1690 | EXTERNAL_PORT(0x07fd, 0x0001, 0, "%s MIDI A"), |
1691 | EXTERNAL_PORT(0x07fd, 0x0001, 1, "%s MIDI B"), | |
1da177e4 | 1692 | /* Emagic Unitor8/AMT8/MT4 */ |
a7b928ac CL |
1693 | EXTERNAL_PORT(0x086a, 0x0001, 8, "%s Broadcast"), |
1694 | EXTERNAL_PORT(0x086a, 0x0002, 8, "%s Broadcast"), | |
1695 | EXTERNAL_PORT(0x086a, 0x0003, 4, "%s Broadcast"), | |
4434ade8 KF |
1696 | /* Akai MPD16 */ |
1697 | CONTROL_PORT(0x09e8, 0x0062, 0, "%s Control"), | |
1698 | PORT_INFO(0x09e8, 0x0062, 1, "%s MIDI", 0, | |
1699 | SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | | |
1700 | SNDRV_SEQ_PORT_TYPE_HARDWARE), | |
d39e82db SA |
1701 | /* Access Music Virus TI */ |
1702 | EXTERNAL_PORT(0x133e, 0x0815, 0, "%s MIDI"), | |
1703 | PORT_INFO(0x133e, 0x0815, 1, "%s Synth", 0, | |
1704 | SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | | |
1705 | SNDRV_SEQ_PORT_TYPE_HARDWARE | | |
1706 | SNDRV_SEQ_PORT_TYPE_SYNTHESIZER), | |
1da177e4 LT |
1707 | }; |
1708 | ||
a509574e | 1709 | static struct port_info *find_port_info(struct snd_usb_midi *umidi, int number) |
a7b928ac CL |
1710 | { |
1711 | int i; | |
1712 | ||
1713 | for (i = 0; i < ARRAY_SIZE(snd_usbmidi_port_info); ++i) { | |
d82af9f9 | 1714 | if (snd_usbmidi_port_info[i].id == umidi->usb_id && |
a7b928ac CL |
1715 | snd_usbmidi_port_info[i].port == number) |
1716 | return &snd_usbmidi_port_info[i]; | |
1717 | } | |
1718 | return NULL; | |
1719 | } | |
1720 | ||
1721 | static void snd_usbmidi_get_port_info(struct snd_rawmidi *rmidi, int number, | |
1722 | struct snd_seq_port_info *seq_port_info) | |
1723 | { | |
1724 | struct snd_usb_midi *umidi = rmidi->private_data; | |
1725 | struct port_info *port_info; | |
1726 | ||
1727 | /* TODO: read port flags from descriptors */ | |
1728 | port_info = find_port_info(umidi, number); | |
1729 | if (port_info) { | |
1730 | seq_port_info->type = port_info->seq_flags; | |
1731 | seq_port_info->midi_voices = port_info->voices; | |
1732 | } | |
1733 | } | |
1734 | ||
a509574e | 1735 | static void snd_usbmidi_init_substream(struct snd_usb_midi *umidi, |
1da177e4 | 1736 | int stream, int number, |
a509574e | 1737 | struct snd_rawmidi_substream **rsubstream) |
1da177e4 | 1738 | { |
a7b928ac | 1739 | struct port_info *port_info; |
1da177e4 LT |
1740 | const char *name_format; |
1741 | ||
a509574e AG |
1742 | struct snd_rawmidi_substream *substream = |
1743 | snd_usbmidi_find_substream(umidi, stream, number); | |
1da177e4 | 1744 | if (!substream) { |
a509574e AG |
1745 | dev_err(&umidi->dev->dev, "substream %d:%d not found\n", stream, |
1746 | number); | |
1da177e4 LT |
1747 | return; |
1748 | } | |
1749 | ||
1750 | /* TODO: read port name from jack descriptor */ | |
a7b928ac CL |
1751 | port_info = find_port_info(umidi, number); |
1752 | name_format = port_info ? port_info->name : "%s MIDI %d"; | |
1da177e4 | 1753 | snprintf(substream->name, sizeof(substream->name), |
d82af9f9 | 1754 | name_format, umidi->card->shortname, number + 1); |
1da177e4 LT |
1755 | |
1756 | *rsubstream = substream; | |
1757 | } | |
1758 | ||
1759 | /* | |
1760 | * Creates the endpoints and their ports. | |
1761 | */ | |
a509574e AG |
1762 | static int snd_usbmidi_create_endpoints(struct snd_usb_midi *umidi, |
1763 | struct snd_usb_midi_endpoint_info *endpoints) | |
1da177e4 LT |
1764 | { |
1765 | int i, j, err; | |
1766 | int out_ports = 0, in_ports = 0; | |
1767 | ||
1768 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { | |
1769 | if (endpoints[i].out_cables) { | |
a509574e AG |
1770 | err = snd_usbmidi_out_endpoint_create(umidi, |
1771 | &endpoints[i], | |
1da177e4 LT |
1772 | &umidi->endpoints[i]); |
1773 | if (err < 0) | |
1774 | return err; | |
1775 | } | |
1776 | if (endpoints[i].in_cables) { | |
a509574e AG |
1777 | err = snd_usbmidi_in_endpoint_create(umidi, |
1778 | &endpoints[i], | |
1da177e4 LT |
1779 | &umidi->endpoints[i]); |
1780 | if (err < 0) | |
1781 | return err; | |
1782 | } | |
1783 | ||
1784 | for (j = 0; j < 0x10; ++j) { | |
1785 | if (endpoints[i].out_cables & (1 << j)) { | |
a509574e AG |
1786 | snd_usbmidi_init_substream(umidi, |
1787 | SNDRV_RAWMIDI_STREAM_OUTPUT, | |
1788 | out_ports, | |
1da177e4 LT |
1789 | &umidi->endpoints[i].out->ports[j].substream); |
1790 | ++out_ports; | |
1791 | } | |
1792 | if (endpoints[i].in_cables & (1 << j)) { | |
a509574e AG |
1793 | snd_usbmidi_init_substream(umidi, |
1794 | SNDRV_RAWMIDI_STREAM_INPUT, | |
1795 | in_ports, | |
1da177e4 LT |
1796 | &umidi->endpoints[i].in->ports[j].substream); |
1797 | ++in_ports; | |
1798 | } | |
1799 | } | |
1800 | } | |
0ba41d91 | 1801 | dev_dbg(&umidi->dev->dev, "created %d output and %d input ports\n", |
1da177e4 LT |
1802 | out_ports, in_ports); |
1803 | return 0; | |
1804 | } | |
1805 | ||
1806 | /* | |
1807 | * Returns MIDIStreaming device capabilities. | |
1808 | */ | |
a509574e AG |
1809 | static int snd_usbmidi_get_ms_info(struct snd_usb_midi *umidi, |
1810 | struct snd_usb_midi_endpoint_info *endpoints) | |
1da177e4 | 1811 | { |
a509574e | 1812 | struct usb_interface *intf; |
1da177e4 | 1813 | struct usb_host_interface *hostif; |
a509574e AG |
1814 | struct usb_interface_descriptor *intfd; |
1815 | struct usb_ms_header_descriptor *ms_header; | |
1da177e4 | 1816 | struct usb_host_endpoint *hostep; |
a509574e AG |
1817 | struct usb_endpoint_descriptor *ep; |
1818 | struct usb_ms_endpoint_descriptor *ms_ep; | |
1da177e4 LT |
1819 | int i, epidx; |
1820 | ||
1821 | intf = umidi->iface; | |
1822 | if (!intf) | |
1823 | return -ENXIO; | |
1824 | hostif = &intf->altsetting[0]; | |
1825 | intfd = get_iface_desc(hostif); | |
a509574e | 1826 | ms_header = (struct usb_ms_header_descriptor *)hostif->extra; |
1da177e4 LT |
1827 | if (hostif->extralen >= 7 && |
1828 | ms_header->bLength >= 7 && | |
1829 | ms_header->bDescriptorType == USB_DT_CS_INTERFACE && | |
de48c7bc | 1830 | ms_header->bDescriptorSubtype == UAC_HEADER) |
0ba41d91 | 1831 | dev_dbg(&umidi->dev->dev, "MIDIStreaming version %02x.%02x\n", |
1da177e4 LT |
1832 | ms_header->bcdMSC[1], ms_header->bcdMSC[0]); |
1833 | else | |
0ba41d91 TI |
1834 | dev_warn(&umidi->dev->dev, |
1835 | "MIDIStreaming interface descriptor not found\n"); | |
1da177e4 LT |
1836 | |
1837 | epidx = 0; | |
1838 | for (i = 0; i < intfd->bNumEndpoints; ++i) { | |
1839 | hostep = &hostif->endpoint[i]; | |
1840 | ep = get_ep_desc(hostep); | |
913ae5a2 | 1841 | if (!usb_endpoint_xfer_bulk(ep) && !usb_endpoint_xfer_int(ep)) |
1da177e4 | 1842 | continue; |
a509574e | 1843 | ms_ep = (struct usb_ms_endpoint_descriptor *)hostep->extra; |
1da177e4 LT |
1844 | if (hostep->extralen < 4 || |
1845 | ms_ep->bLength < 4 || | |
1846 | ms_ep->bDescriptorType != USB_DT_CS_ENDPOINT || | |
de48c7bc | 1847 | ms_ep->bDescriptorSubtype != UAC_MS_GENERAL) |
1da177e4 | 1848 | continue; |
42a6e66f | 1849 | if (usb_endpoint_dir_out(ep)) { |
1da177e4 LT |
1850 | if (endpoints[epidx].out_ep) { |
1851 | if (++epidx >= MIDI_MAX_ENDPOINTS) { | |
0ba41d91 TI |
1852 | dev_warn(&umidi->dev->dev, |
1853 | "too many endpoints\n"); | |
1da177e4 LT |
1854 | break; |
1855 | } | |
1856 | } | |
42a6e66f JL |
1857 | endpoints[epidx].out_ep = usb_endpoint_num(ep); |
1858 | if (usb_endpoint_xfer_int(ep)) | |
1da177e4 | 1859 | endpoints[epidx].out_interval = ep->bInterval; |
d82af9f9 | 1860 | else if (snd_usb_get_speed(umidi->dev) == USB_SPEED_LOW) |
56162aab CL |
1861 | /* |
1862 | * Low speed bulk transfers don't exist, so | |
1863 | * force interrupt transfers for devices like | |
1864 | * ESI MIDI Mate that try to use them anyway. | |
1865 | */ | |
1866 | endpoints[epidx].out_interval = 1; | |
a509574e AG |
1867 | endpoints[epidx].out_cables = |
1868 | (1 << ms_ep->bNumEmbMIDIJack) - 1; | |
0ba41d91 | 1869 | dev_dbg(&umidi->dev->dev, "EP %02X: %d jack(s)\n", |
a509574e | 1870 | ep->bEndpointAddress, ms_ep->bNumEmbMIDIJack); |
1da177e4 LT |
1871 | } else { |
1872 | if (endpoints[epidx].in_ep) { | |
1873 | if (++epidx >= MIDI_MAX_ENDPOINTS) { | |
0ba41d91 TI |
1874 | dev_warn(&umidi->dev->dev, |
1875 | "too many endpoints\n"); | |
1da177e4 LT |
1876 | break; |
1877 | } | |
1878 | } | |
42a6e66f JL |
1879 | endpoints[epidx].in_ep = usb_endpoint_num(ep); |
1880 | if (usb_endpoint_xfer_int(ep)) | |
1da177e4 | 1881 | endpoints[epidx].in_interval = ep->bInterval; |
d82af9f9 | 1882 | else if (snd_usb_get_speed(umidi->dev) == USB_SPEED_LOW) |
56162aab | 1883 | endpoints[epidx].in_interval = 1; |
a509574e AG |
1884 | endpoints[epidx].in_cables = |
1885 | (1 << ms_ep->bNumEmbMIDIJack) - 1; | |
0ba41d91 | 1886 | dev_dbg(&umidi->dev->dev, "EP %02X: %d jack(s)\n", |
a509574e | 1887 | ep->bEndpointAddress, ms_ep->bNumEmbMIDIJack); |
1da177e4 LT |
1888 | } |
1889 | } | |
1890 | return 0; | |
1891 | } | |
1892 | ||
96f61d9a CL |
1893 | static int roland_load_info(struct snd_kcontrol *kcontrol, |
1894 | struct snd_ctl_elem_info *info) | |
1895 | { | |
1896 | static const char *const names[] = { "High Load", "Light Load" }; | |
1897 | ||
2a1803a7 | 1898 | return snd_ctl_enum_info(info, 1, 2, names); |
96f61d9a CL |
1899 | } |
1900 | ||
1901 | static int roland_load_get(struct snd_kcontrol *kcontrol, | |
1902 | struct snd_ctl_elem_value *value) | |
1903 | { | |
1904 | value->value.enumerated.item[0] = kcontrol->private_value; | |
1905 | return 0; | |
1906 | } | |
1907 | ||
1908 | static int roland_load_put(struct snd_kcontrol *kcontrol, | |
1909 | struct snd_ctl_elem_value *value) | |
1910 | { | |
a509574e | 1911 | struct snd_usb_midi *umidi = kcontrol->private_data; |
96f61d9a CL |
1912 | int changed; |
1913 | ||
1914 | if (value->value.enumerated.item[0] > 1) | |
1915 | return -EINVAL; | |
1916 | mutex_lock(&umidi->mutex); | |
1917 | changed = value->value.enumerated.item[0] != kcontrol->private_value; | |
1918 | if (changed) | |
1919 | kcontrol->private_value = value->value.enumerated.item[0]; | |
1920 | mutex_unlock(&umidi->mutex); | |
1921 | return changed; | |
1922 | } | |
1923 | ||
1924 | static struct snd_kcontrol_new roland_load_ctl = { | |
1925 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
1926 | .name = "MIDI Input Mode", | |
1927 | .info = roland_load_info, | |
1928 | .get = roland_load_get, | |
1929 | .put = roland_load_put, | |
1930 | .private_value = 1, | |
1931 | }; | |
1932 | ||
1da177e4 LT |
1933 | /* |
1934 | * On Roland devices, use the second alternate setting to be able to use | |
1935 | * the interrupt input endpoint. | |
1936 | */ | |
a509574e | 1937 | static void snd_usbmidi_switch_roland_altsetting(struct snd_usb_midi *umidi) |
1da177e4 | 1938 | { |
a509574e | 1939 | struct usb_interface *intf; |
1da177e4 | 1940 | struct usb_host_interface *hostif; |
a509574e | 1941 | struct usb_interface_descriptor *intfd; |
1da177e4 LT |
1942 | |
1943 | intf = umidi->iface; | |
1944 | if (!intf || intf->num_altsetting != 2) | |
1945 | return; | |
1946 | ||
1947 | hostif = &intf->altsetting[1]; | |
1948 | intfd = get_iface_desc(hostif); | |
ac774236 KM |
1949 | /* If either or both of the endpoints support interrupt transfer, |
1950 | * then use the alternate setting | |
1951 | */ | |
1da177e4 | 1952 | if (intfd->bNumEndpoints != 2 || |
ac774236 KM |
1953 | !((get_endpoint(hostif, 0)->bmAttributes & |
1954 | USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT || | |
1955 | (get_endpoint(hostif, 1)->bmAttributes & | |
1956 | USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT)) | |
1da177e4 LT |
1957 | return; |
1958 | ||
0ba41d91 | 1959 | dev_dbg(&umidi->dev->dev, "switching to altsetting %d with int ep\n", |
1da177e4 | 1960 | intfd->bAlternateSetting); |
d82af9f9 | 1961 | usb_set_interface(umidi->dev, intfd->bInterfaceNumber, |
1da177e4 | 1962 | intfd->bAlternateSetting); |
96f61d9a CL |
1963 | |
1964 | umidi->roland_load_ctl = snd_ctl_new1(&roland_load_ctl, umidi); | |
d82af9f9 | 1965 | if (snd_ctl_add(umidi->card, umidi->roland_load_ctl) < 0) |
96f61d9a | 1966 | umidi->roland_load_ctl = NULL; |
1da177e4 LT |
1967 | } |
1968 | ||
1969 | /* | |
1970 | * Try to find any usable endpoints in the interface. | |
1971 | */ | |
a509574e AG |
1972 | static int snd_usbmidi_detect_endpoints(struct snd_usb_midi *umidi, |
1973 | struct snd_usb_midi_endpoint_info *endpoint, | |
1da177e4 LT |
1974 | int max_endpoints) |
1975 | { | |
a509574e | 1976 | struct usb_interface *intf; |
1da177e4 | 1977 | struct usb_host_interface *hostif; |
a509574e AG |
1978 | struct usb_interface_descriptor *intfd; |
1979 | struct usb_endpoint_descriptor *epd; | |
1da177e4 LT |
1980 | int i, out_eps = 0, in_eps = 0; |
1981 | ||
d82af9f9 | 1982 | if (USB_ID_VENDOR(umidi->usb_id) == 0x0582) |
1da177e4 LT |
1983 | snd_usbmidi_switch_roland_altsetting(umidi); |
1984 | ||
c1ab5d59 | 1985 | if (endpoint[0].out_ep || endpoint[0].in_ep) |
21af7d8c | 1986 | return 0; |
c1ab5d59 | 1987 | |
1da177e4 LT |
1988 | intf = umidi->iface; |
1989 | if (!intf || intf->num_altsetting < 1) | |
1990 | return -ENOENT; | |
1991 | hostif = intf->cur_altsetting; | |
1992 | intfd = get_iface_desc(hostif); | |
1993 | ||
1994 | for (i = 0; i < intfd->bNumEndpoints; ++i) { | |
1995 | epd = get_endpoint(hostif, i); | |
913ae5a2 JL |
1996 | if (!usb_endpoint_xfer_bulk(epd) && |
1997 | !usb_endpoint_xfer_int(epd)) | |
1da177e4 LT |
1998 | continue; |
1999 | if (out_eps < max_endpoints && | |
42a6e66f JL |
2000 | usb_endpoint_dir_out(epd)) { |
2001 | endpoint[out_eps].out_ep = usb_endpoint_num(epd); | |
2002 | if (usb_endpoint_xfer_int(epd)) | |
1da177e4 LT |
2003 | endpoint[out_eps].out_interval = epd->bInterval; |
2004 | ++out_eps; | |
2005 | } | |
2006 | if (in_eps < max_endpoints && | |
42a6e66f JL |
2007 | usb_endpoint_dir_in(epd)) { |
2008 | endpoint[in_eps].in_ep = usb_endpoint_num(epd); | |
2009 | if (usb_endpoint_xfer_int(epd)) | |
1da177e4 LT |
2010 | endpoint[in_eps].in_interval = epd->bInterval; |
2011 | ++in_eps; | |
2012 | } | |
2013 | } | |
2014 | return (out_eps || in_eps) ? 0 : -ENOENT; | |
2015 | } | |
2016 | ||
2017 | /* | |
2018 | * Detects the endpoints for one-port-per-endpoint protocols. | |
2019 | */ | |
a509574e AG |
2020 | static int snd_usbmidi_detect_per_port_endpoints(struct snd_usb_midi *umidi, |
2021 | struct snd_usb_midi_endpoint_info *endpoints) | |
1da177e4 LT |
2022 | { |
2023 | int err, i; | |
21af7d8c | 2024 | |
1da177e4 LT |
2025 | err = snd_usbmidi_detect_endpoints(umidi, endpoints, MIDI_MAX_ENDPOINTS); |
2026 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { | |
2027 | if (endpoints[i].out_ep) | |
2028 | endpoints[i].out_cables = 0x0001; | |
2029 | if (endpoints[i].in_ep) | |
2030 | endpoints[i].in_cables = 0x0001; | |
2031 | } | |
2032 | return err; | |
2033 | } | |
2034 | ||
2035 | /* | |
2036 | * Detects the endpoints and ports of Yamaha devices. | |
2037 | */ | |
a509574e AG |
2038 | static int snd_usbmidi_detect_yamaha(struct snd_usb_midi *umidi, |
2039 | struct snd_usb_midi_endpoint_info *endpoint) | |
1da177e4 | 2040 | { |
a509574e | 2041 | struct usb_interface *intf; |
1da177e4 | 2042 | struct usb_host_interface *hostif; |
a509574e AG |
2043 | struct usb_interface_descriptor *intfd; |
2044 | uint8_t *cs_desc; | |
1da177e4 LT |
2045 | |
2046 | intf = umidi->iface; | |
2047 | if (!intf) | |
2048 | return -ENOENT; | |
2049 | hostif = intf->altsetting; | |
2050 | intfd = get_iface_desc(hostif); | |
2051 | if (intfd->bNumEndpoints < 1) | |
2052 | return -ENOENT; | |
2053 | ||
2054 | /* | |
2055 | * For each port there is one MIDI_IN/OUT_JACK descriptor, not | |
2056 | * necessarily with any useful contents. So simply count 'em. | |
2057 | */ | |
2058 | for (cs_desc = hostif->extra; | |
2059 | cs_desc < hostif->extra + hostif->extralen && cs_desc[0] >= 2; | |
2060 | cs_desc += cs_desc[0]) { | |
c4a87ef4 | 2061 | if (cs_desc[1] == USB_DT_CS_INTERFACE) { |
de48c7bc | 2062 | if (cs_desc[2] == UAC_MIDI_IN_JACK) |
a509574e AG |
2063 | endpoint->in_cables = |
2064 | (endpoint->in_cables << 1) | 1; | |
de48c7bc | 2065 | else if (cs_desc[2] == UAC_MIDI_OUT_JACK) |
a509574e AG |
2066 | endpoint->out_cables = |
2067 | (endpoint->out_cables << 1) | 1; | |
1da177e4 LT |
2068 | } |
2069 | } | |
2070 | if (!endpoint->in_cables && !endpoint->out_cables) | |
2071 | return -ENOENT; | |
2072 | ||
2073 | return snd_usbmidi_detect_endpoints(umidi, endpoint, 1); | |
2074 | } | |
2075 | ||
aafe77cc CL |
2076 | /* |
2077 | * Detects the endpoints and ports of Roland devices. | |
2078 | */ | |
a509574e AG |
2079 | static int snd_usbmidi_detect_roland(struct snd_usb_midi *umidi, |
2080 | struct snd_usb_midi_endpoint_info *endpoint) | |
aafe77cc | 2081 | { |
a509574e | 2082 | struct usb_interface *intf; |
aafe77cc | 2083 | struct usb_host_interface *hostif; |
a509574e | 2084 | u8 *cs_desc; |
aafe77cc CL |
2085 | |
2086 | intf = umidi->iface; | |
2087 | if (!intf) | |
2088 | return -ENOENT; | |
2089 | hostif = intf->altsetting; | |
2090 | /* | |
2091 | * Some devices have a descriptor <06 24 F1 02 <inputs> <outputs>>, | |
2092 | * some have standard class descriptors, or both kinds, or neither. | |
2093 | */ | |
2094 | for (cs_desc = hostif->extra; | |
2095 | cs_desc < hostif->extra + hostif->extralen && cs_desc[0] >= 2; | |
2096 | cs_desc += cs_desc[0]) { | |
2097 | if (cs_desc[0] >= 6 && | |
2098 | cs_desc[1] == USB_DT_CS_INTERFACE && | |
2099 | cs_desc[2] == 0xf1 && | |
2100 | cs_desc[3] == 0x02) { | |
2101 | endpoint->in_cables = (1 << cs_desc[4]) - 1; | |
2102 | endpoint->out_cables = (1 << cs_desc[5]) - 1; | |
2103 | return snd_usbmidi_detect_endpoints(umidi, endpoint, 1); | |
2104 | } else if (cs_desc[0] >= 7 && | |
2105 | cs_desc[1] == USB_DT_CS_INTERFACE && | |
2106 | cs_desc[2] == UAC_HEADER) { | |
2107 | return snd_usbmidi_get_ms_info(umidi, endpoint); | |
2108 | } | |
2109 | } | |
2110 | ||
2111 | return -ENODEV; | |
2112 | } | |
2113 | ||
1da177e4 LT |
2114 | /* |
2115 | * Creates the endpoints and their ports for Midiman devices. | |
2116 | */ | |
a509574e AG |
2117 | static int snd_usbmidi_create_endpoints_midiman(struct snd_usb_midi *umidi, |
2118 | struct snd_usb_midi_endpoint_info *endpoint) | |
1da177e4 | 2119 | { |
86e07d34 | 2120 | struct snd_usb_midi_endpoint_info ep_info; |
a509574e | 2121 | struct usb_interface *intf; |
1da177e4 | 2122 | struct usb_host_interface *hostif; |
a509574e AG |
2123 | struct usb_interface_descriptor *intfd; |
2124 | struct usb_endpoint_descriptor *epd; | |
1da177e4 LT |
2125 | int cable, err; |
2126 | ||
2127 | intf = umidi->iface; | |
2128 | if (!intf) | |
2129 | return -ENOENT; | |
2130 | hostif = intf->altsetting; | |
2131 | intfd = get_iface_desc(hostif); | |
2132 | /* | |
2133 | * The various MidiSport devices have more or less random endpoint | |
2134 | * numbers, so we have to identify the endpoints by their index in | |
2135 | * the descriptor array, like the driver for that other OS does. | |
2136 | * | |
2137 | * There is one interrupt input endpoint for all input ports, one | |
2138 | * bulk output endpoint for even-numbered ports, and one for odd- | |
2139 | * numbered ports. Both bulk output endpoints have corresponding | |
2140 | * input bulk endpoints (at indices 1 and 3) which aren't used. | |
2141 | */ | |
2142 | if (intfd->bNumEndpoints < (endpoint->out_cables > 0x0001 ? 5 : 3)) { | |
0ba41d91 | 2143 | dev_dbg(&umidi->dev->dev, "not enough endpoints\n"); |
1da177e4 LT |
2144 | return -ENOENT; |
2145 | } | |
2146 | ||
2147 | epd = get_endpoint(hostif, 0); | |
913ae5a2 | 2148 | if (!usb_endpoint_dir_in(epd) || !usb_endpoint_xfer_int(epd)) { |
0ba41d91 | 2149 | dev_dbg(&umidi->dev->dev, "endpoint[0] isn't interrupt\n"); |
1da177e4 LT |
2150 | return -ENXIO; |
2151 | } | |
2152 | epd = get_endpoint(hostif, 2); | |
913ae5a2 | 2153 | if (!usb_endpoint_dir_out(epd) || !usb_endpoint_xfer_bulk(epd)) { |
0ba41d91 | 2154 | dev_dbg(&umidi->dev->dev, "endpoint[2] isn't bulk output\n"); |
1da177e4 LT |
2155 | return -ENXIO; |
2156 | } | |
2157 | if (endpoint->out_cables > 0x0001) { | |
2158 | epd = get_endpoint(hostif, 4); | |
913ae5a2 JL |
2159 | if (!usb_endpoint_dir_out(epd) || |
2160 | !usb_endpoint_xfer_bulk(epd)) { | |
a509574e AG |
2161 | dev_dbg(&umidi->dev->dev, |
2162 | "endpoint[4] isn't bulk output\n"); | |
1da177e4 LT |
2163 | return -ENXIO; |
2164 | } | |
2165 | } | |
2166 | ||
a509574e AG |
2167 | ep_info.out_ep = get_endpoint(hostif, 2)->bEndpointAddress & |
2168 | USB_ENDPOINT_NUMBER_MASK; | |
e156ac4c | 2169 | ep_info.out_interval = 0; |
1da177e4 | 2170 | ep_info.out_cables = endpoint->out_cables & 0x5555; |
a509574e AG |
2171 | err = snd_usbmidi_out_endpoint_create(umidi, &ep_info, |
2172 | &umidi->endpoints[0]); | |
1da177e4 LT |
2173 | if (err < 0) |
2174 | return err; | |
2175 | ||
a509574e AG |
2176 | ep_info.in_ep = get_endpoint(hostif, 0)->bEndpointAddress & |
2177 | USB_ENDPOINT_NUMBER_MASK; | |
1da177e4 LT |
2178 | ep_info.in_interval = get_endpoint(hostif, 0)->bInterval; |
2179 | ep_info.in_cables = endpoint->in_cables; | |
a509574e AG |
2180 | err = snd_usbmidi_in_endpoint_create(umidi, &ep_info, |
2181 | &umidi->endpoints[0]); | |
1da177e4 LT |
2182 | if (err < 0) |
2183 | return err; | |
2184 | ||
2185 | if (endpoint->out_cables > 0x0001) { | |
a509574e AG |
2186 | ep_info.out_ep = get_endpoint(hostif, 4)->bEndpointAddress & |
2187 | USB_ENDPOINT_NUMBER_MASK; | |
1da177e4 | 2188 | ep_info.out_cables = endpoint->out_cables & 0xaaaa; |
a509574e AG |
2189 | err = snd_usbmidi_out_endpoint_create(umidi, &ep_info, |
2190 | &umidi->endpoints[1]); | |
1da177e4 LT |
2191 | if (err < 0) |
2192 | return err; | |
2193 | } | |
2194 | ||
2195 | for (cable = 0; cable < 0x10; ++cable) { | |
2196 | if (endpoint->out_cables & (1 << cable)) | |
a509574e AG |
2197 | snd_usbmidi_init_substream(umidi, |
2198 | SNDRV_RAWMIDI_STREAM_OUTPUT, | |
2199 | cable, | |
1da177e4 LT |
2200 | &umidi->endpoints[cable & 1].out->ports[cable].substream); |
2201 | if (endpoint->in_cables & (1 << cable)) | |
a509574e AG |
2202 | snd_usbmidi_init_substream(umidi, |
2203 | SNDRV_RAWMIDI_STREAM_INPUT, | |
2204 | cable, | |
1da177e4 LT |
2205 | &umidi->endpoints[0].in->ports[cable].substream); |
2206 | } | |
2207 | return 0; | |
2208 | } | |
2209 | ||
efdbe3c3 | 2210 | static const struct snd_rawmidi_global_ops snd_usbmidi_ops = { |
a7b928ac CL |
2211 | .get_port_info = snd_usbmidi_get_port_info, |
2212 | }; | |
2213 | ||
a509574e | 2214 | static int snd_usbmidi_create_rawmidi(struct snd_usb_midi *umidi, |
1da177e4 LT |
2215 | int out_ports, int in_ports) |
2216 | { | |
86e07d34 | 2217 | struct snd_rawmidi *rmidi; |
1da177e4 LT |
2218 | int err; |
2219 | ||
d82af9f9 CL |
2220 | err = snd_rawmidi_new(umidi->card, "USB MIDI", |
2221 | umidi->next_midi_device++, | |
1da177e4 LT |
2222 | out_ports, in_ports, &rmidi); |
2223 | if (err < 0) | |
2224 | return err; | |
d82af9f9 | 2225 | strcpy(rmidi->name, umidi->card->shortname); |
1da177e4 LT |
2226 | rmidi->info_flags = SNDRV_RAWMIDI_INFO_OUTPUT | |
2227 | SNDRV_RAWMIDI_INFO_INPUT | | |
2228 | SNDRV_RAWMIDI_INFO_DUPLEX; | |
a7b928ac | 2229 | rmidi->ops = &snd_usbmidi_ops; |
1da177e4 LT |
2230 | rmidi->private_data = umidi; |
2231 | rmidi->private_free = snd_usbmidi_rawmidi_free; | |
a509574e AG |
2232 | snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, |
2233 | &snd_usbmidi_output_ops); | |
2234 | snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, | |
2235 | &snd_usbmidi_input_ops); | |
1da177e4 LT |
2236 | |
2237 | umidi->rmidi = rmidi; | |
2238 | return 0; | |
2239 | } | |
2240 | ||
2241 | /* | |
2242 | * Temporarily stop input. | |
2243 | */ | |
a509574e | 2244 | void snd_usbmidi_input_stop(struct list_head *p) |
1da177e4 | 2245 | { |
a509574e | 2246 | struct snd_usb_midi *umidi; |
4773d1fb | 2247 | unsigned int i, j; |
1da177e4 | 2248 | |
86e07d34 | 2249 | umidi = list_entry(p, struct snd_usb_midi, list); |
f5f16541 TI |
2250 | if (!umidi->input_running) |
2251 | return; | |
1da177e4 | 2252 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { |
a509574e | 2253 | struct snd_usb_midi_endpoint *ep = &umidi->endpoints[i]; |
1da177e4 | 2254 | if (ep->in) |
4773d1fb CL |
2255 | for (j = 0; j < INPUT_URBS; ++j) |
2256 | usb_kill_urb(ep->in->urbs[j]); | |
1da177e4 | 2257 | } |
f5f16541 | 2258 | umidi->input_running = 0; |
1da177e4 | 2259 | } |
ed136aca | 2260 | EXPORT_SYMBOL(snd_usbmidi_input_stop); |
1da177e4 | 2261 | |
a509574e | 2262 | static void snd_usbmidi_input_start_ep(struct snd_usb_midi_in_endpoint *ep) |
1da177e4 | 2263 | { |
4773d1fb CL |
2264 | unsigned int i; |
2265 | ||
2266 | if (!ep) | |
2267 | return; | |
2268 | for (i = 0; i < INPUT_URBS; ++i) { | |
a509574e | 2269 | struct urb *urb = ep->urbs[i]; |
d82af9f9 | 2270 | urb->dev = ep->umidi->dev; |
1da177e4 LT |
2271 | snd_usbmidi_submit_urb(urb, GFP_KERNEL); |
2272 | } | |
2273 | } | |
2274 | ||
2275 | /* | |
2276 | * Resume input after a call to snd_usbmidi_input_stop(). | |
2277 | */ | |
a509574e | 2278 | void snd_usbmidi_input_start(struct list_head *p) |
1da177e4 | 2279 | { |
a509574e | 2280 | struct snd_usb_midi *umidi; |
1da177e4 LT |
2281 | int i; |
2282 | ||
86e07d34 | 2283 | umidi = list_entry(p, struct snd_usb_midi, list); |
f5f16541 TI |
2284 | if (umidi->input_running || !umidi->opened[1]) |
2285 | return; | |
1da177e4 LT |
2286 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) |
2287 | snd_usbmidi_input_start_ep(umidi->endpoints[i].in); | |
f5f16541 | 2288 | umidi->input_running = 1; |
1da177e4 | 2289 | } |
ed136aca | 2290 | EXPORT_SYMBOL(snd_usbmidi_input_start); |
1da177e4 | 2291 | |
f7881e5e AG |
2292 | /* |
2293 | * Prepare for suspend. Typically called from the USB suspend callback. | |
2294 | */ | |
2295 | void snd_usbmidi_suspend(struct list_head *p) | |
2296 | { | |
2297 | struct snd_usb_midi *umidi; | |
2298 | ||
2299 | umidi = list_entry(p, struct snd_usb_midi, list); | |
2300 | mutex_lock(&umidi->mutex); | |
2301 | snd_usbmidi_input_stop(p); | |
2302 | mutex_unlock(&umidi->mutex); | |
2303 | } | |
2304 | EXPORT_SYMBOL(snd_usbmidi_suspend); | |
2305 | ||
2306 | /* | |
2307 | * Resume. Typically called from the USB resume callback. | |
2308 | */ | |
2309 | void snd_usbmidi_resume(struct list_head *p) | |
2310 | { | |
2311 | struct snd_usb_midi *umidi; | |
2312 | ||
2313 | umidi = list_entry(p, struct snd_usb_midi, list); | |
2314 | mutex_lock(&umidi->mutex); | |
2315 | snd_usbmidi_input_start(p); | |
2316 | mutex_unlock(&umidi->mutex); | |
2317 | } | |
2318 | EXPORT_SYMBOL(snd_usbmidi_resume); | |
2319 | ||
1da177e4 LT |
2320 | /* |
2321 | * Creates and registers everything needed for a MIDI streaming interface. | |
2322 | */ | |
d82af9f9 | 2323 | int snd_usbmidi_create(struct snd_card *card, |
a509574e | 2324 | struct usb_interface *iface, |
d82af9f9 | 2325 | struct list_head *midi_list, |
a509574e | 2326 | const struct snd_usb_audio_quirk *quirk) |
1da177e4 | 2327 | { |
a509574e | 2328 | struct snd_usb_midi *umidi; |
86e07d34 | 2329 | struct snd_usb_midi_endpoint_info endpoints[MIDI_MAX_ENDPOINTS]; |
1da177e4 LT |
2330 | int out_ports, in_ports; |
2331 | int i, err; | |
2332 | ||
561b220a | 2333 | umidi = kzalloc(sizeof(*umidi), GFP_KERNEL); |
1da177e4 LT |
2334 | if (!umidi) |
2335 | return -ENOMEM; | |
d82af9f9 CL |
2336 | umidi->dev = interface_to_usbdev(iface); |
2337 | umidi->card = card; | |
1da177e4 LT |
2338 | umidi->iface = iface; |
2339 | umidi->quirk = quirk; | |
2340 | umidi->usb_protocol_ops = &snd_usbmidi_standard_ops; | |
c0792e00 | 2341 | spin_lock_init(&umidi->disc_lock); |
59866da9 | 2342 | init_rwsem(&umidi->disc_rwsem); |
96f61d9a | 2343 | mutex_init(&umidi->mutex); |
d82af9f9 CL |
2344 | umidi->usb_id = USB_ID(le16_to_cpu(umidi->dev->descriptor.idVendor), |
2345 | le16_to_cpu(umidi->dev->descriptor.idProduct)); | |
28e237a9 TI |
2346 | setup_timer(&umidi->error_timer, snd_usbmidi_error_timer, |
2347 | (unsigned long)umidi); | |
1da177e4 LT |
2348 | |
2349 | /* detect the endpoint(s) to use */ | |
2350 | memset(endpoints, 0, sizeof(endpoints)); | |
d1bda045 CL |
2351 | switch (quirk ? quirk->type : QUIRK_MIDI_STANDARD_INTERFACE) { |
2352 | case QUIRK_MIDI_STANDARD_INTERFACE: | |
1da177e4 | 2353 | err = snd_usbmidi_get_ms_info(umidi, endpoints); |
d82af9f9 | 2354 | if (umidi->usb_id == USB_ID(0x0763, 0x0150)) /* M-Audio Uno */ |
d05cc104 CL |
2355 | umidi->usb_protocol_ops = |
2356 | &snd_usbmidi_maudio_broken_running_status_ops; | |
d1bda045 | 2357 | break; |
030a07e4 KW |
2358 | case QUIRK_MIDI_US122L: |
2359 | umidi->usb_protocol_ops = &snd_usbmidi_122l_ops; | |
2360 | /* fall through */ | |
d1bda045 CL |
2361 | case QUIRK_MIDI_FIXED_ENDPOINT: |
2362 | memcpy(&endpoints[0], quirk->data, | |
86e07d34 | 2363 | sizeof(struct snd_usb_midi_endpoint_info)); |
d1bda045 CL |
2364 | err = snd_usbmidi_detect_endpoints(umidi, &endpoints[0], 1); |
2365 | break; | |
2366 | case QUIRK_MIDI_YAMAHA: | |
2367 | err = snd_usbmidi_detect_yamaha(umidi, &endpoints[0]); | |
2368 | break; | |
aafe77cc CL |
2369 | case QUIRK_MIDI_ROLAND: |
2370 | err = snd_usbmidi_detect_roland(umidi, &endpoints[0]); | |
2371 | break; | |
d1bda045 CL |
2372 | case QUIRK_MIDI_MIDIMAN: |
2373 | umidi->usb_protocol_ops = &snd_usbmidi_midiman_ops; | |
2374 | memcpy(&endpoints[0], quirk->data, | |
86e07d34 | 2375 | sizeof(struct snd_usb_midi_endpoint_info)); |
d1bda045 CL |
2376 | err = 0; |
2377 | break; | |
2378 | case QUIRK_MIDI_NOVATION: | |
2379 | umidi->usb_protocol_ops = &snd_usbmidi_novation_ops; | |
2380 | err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints); | |
2381 | break; | |
c7f57216 | 2382 | case QUIRK_MIDI_RAW_BYTES: |
d1bda045 | 2383 | umidi->usb_protocol_ops = &snd_usbmidi_raw_ops; |
55de5ef9 CL |
2384 | /* |
2385 | * Interface 1 contains isochronous endpoints, but with the same | |
2386 | * numbers as in interface 0. Since it is interface 1 that the | |
2387 | * USB core has most recently seen, these descriptors are now | |
2388 | * associated with the endpoint numbers. This will foul up our | |
2389 | * attempts to submit bulk/interrupt URBs to the endpoints in | |
2390 | * interface 0, so we have to make sure that the USB core looks | |
2391 | * again at interface 0 by calling usb_set_interface() on it. | |
2392 | */ | |
c7f57216 CL |
2393 | if (umidi->usb_id == USB_ID(0x07fd, 0x0001)) /* MOTU Fastlane */ |
2394 | usb_set_interface(umidi->dev, 0, 0); | |
d1bda045 CL |
2395 | err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints); |
2396 | break; | |
2397 | case QUIRK_MIDI_EMAGIC: | |
2398 | umidi->usb_protocol_ops = &snd_usbmidi_emagic_ops; | |
2399 | memcpy(&endpoints[0], quirk->data, | |
86e07d34 | 2400 | sizeof(struct snd_usb_midi_endpoint_info)); |
d1bda045 CL |
2401 | err = snd_usbmidi_detect_endpoints(umidi, &endpoints[0], 1); |
2402 | break; | |
cc7a59bd | 2403 | case QUIRK_MIDI_CME: |
61870aed | 2404 | umidi->usb_protocol_ops = &snd_usbmidi_cme_ops; |
d1bda045 CL |
2405 | err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints); |
2406 | break; | |
4434ade8 KF |
2407 | case QUIRK_MIDI_AKAI: |
2408 | umidi->usb_protocol_ops = &snd_usbmidi_akai_ops; | |
2409 | err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints); | |
2410 | /* endpoint 1 is input-only */ | |
2411 | endpoints[1].out_cables = 0; | |
2412 | break; | |
1ef0e0a0 KA |
2413 | case QUIRK_MIDI_FTDI: |
2414 | umidi->usb_protocol_ops = &snd_usbmidi_ftdi_ops; | |
2415 | ||
2416 | /* set baud rate to 31250 (48 MHz / 16 / 96) */ | |
2417 | err = usb_control_msg(umidi->dev, usb_sndctrlpipe(umidi->dev, 0), | |
2418 | 3, 0x40, 0x60, 0, NULL, 0, 1000); | |
2419 | if (err < 0) | |
2420 | break; | |
2421 | ||
1ca8b201 CL |
2422 | err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints); |
2423 | break; | |
2424 | case QUIRK_MIDI_CH345: | |
a91e627e | 2425 | umidi->usb_protocol_ops = &snd_usbmidi_ch345_broken_sysex_ops; |
1ef0e0a0 KA |
2426 | err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints); |
2427 | break; | |
d1bda045 | 2428 | default: |
a509574e AG |
2429 | dev_err(&umidi->dev->dev, "invalid quirk type %d\n", |
2430 | quirk->type); | |
d1bda045 CL |
2431 | err = -ENXIO; |
2432 | break; | |
1da177e4 LT |
2433 | } |
2434 | if (err < 0) { | |
2435 | kfree(umidi); | |
2436 | return err; | |
2437 | } | |
2438 | ||
2439 | /* create rawmidi device */ | |
2440 | out_ports = 0; | |
2441 | in_ports = 0; | |
2442 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { | |
fbc54391 AM |
2443 | out_ports += hweight16(endpoints[i].out_cables); |
2444 | in_ports += hweight16(endpoints[i].in_cables); | |
1da177e4 LT |
2445 | } |
2446 | err = snd_usbmidi_create_rawmidi(umidi, out_ports, in_ports); | |
2447 | if (err < 0) { | |
2448 | kfree(umidi); | |
2449 | return err; | |
2450 | } | |
2451 | ||
2452 | /* create endpoint/port structures */ | |
2453 | if (quirk && quirk->type == QUIRK_MIDI_MIDIMAN) | |
2454 | err = snd_usbmidi_create_endpoints_midiman(umidi, &endpoints[0]); | |
2455 | else | |
2456 | err = snd_usbmidi_create_endpoints(umidi, endpoints); | |
2457 | if (err < 0) { | |
1da177e4 LT |
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); |