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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * usbmidi.c - ALSA USB MIDI driver | |
3 | * | |
96f61d9a | 4 | * Copyright (c) 2002-2009 Clemens Ladisch |
1da177e4 LT |
5 | * All rights reserved. |
6 | * | |
7 | * Based on the OSS usb-midi driver by NAGANO Daisuke, | |
8 | * NetBSD's umidi driver by Takuya SHIOZAKI, | |
9 | * the "USB Device Class Definition for MIDI Devices" by Roland | |
10 | * | |
11 | * Redistribution and use in source and binary forms, with or without | |
12 | * modification, are permitted provided that the following conditions | |
13 | * are met: | |
14 | * 1. Redistributions of source code must retain the above copyright | |
15 | * notice, this list of conditions, and the following disclaimer, | |
16 | * without modification. | |
17 | * 2. The name of the author may not be used to endorse or promote products | |
18 | * derived from this software without specific prior written permission. | |
19 | * | |
20 | * Alternatively, this software may be distributed and/or modified under the | |
21 | * terms of the GNU General Public License as published by the Free Software | |
22 | * Foundation; either version 2 of the License, or (at your option) any later | |
23 | * version. | |
24 | * | |
25 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND | |
26 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
27 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
28 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR | |
29 | * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
30 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
31 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
32 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
33 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
34 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
35 | * SUCH DAMAGE. | |
36 | */ | |
37 | ||
1da177e4 LT |
38 | #include <linux/kernel.h> |
39 | #include <linux/types.h> | |
40 | #include <linux/bitops.h> | |
41 | #include <linux/interrupt.h> | |
42 | #include <linux/spinlock.h> | |
43 | #include <linux/string.h> | |
44 | #include <linux/init.h> | |
45 | #include <linux/slab.h> | |
c8846970 | 46 | #include <linux/timer.h> |
1da177e4 | 47 | #include <linux/usb.h> |
a65dd997 | 48 | #include <linux/wait.h> |
de48c7bc | 49 | #include <linux/usb/audio.h> |
da155d5b | 50 | #include <linux/module.h> |
de48c7bc | 51 | |
1da177e4 | 52 | #include <sound/core.h> |
96f61d9a | 53 | #include <sound/control.h> |
1da177e4 | 54 | #include <sound/rawmidi.h> |
a7b928ac | 55 | #include <sound/asequencer.h> |
1da177e4 | 56 | #include "usbaudio.h" |
e5779998 | 57 | #include "midi.h" |
88a8516a | 58 | #include "power.h" |
e5779998 | 59 | #include "helper.h" |
1da177e4 LT |
60 | |
61 | /* | |
62 | * define this to log all USB packets | |
63 | */ | |
64 | /* #define DUMP_PACKETS */ | |
65 | ||
c8846970 | 66 | /* |
37ebb549 | 67 | * how long to wait after some USB errors, so that hub_wq can disconnect() us |
c8846970 CL |
68 | * without too many spurious errors |
69 | */ | |
70 | #define ERROR_DELAY_JIFFIES (HZ / 10) | |
71 | ||
ed4affa5 | 72 | #define OUTPUT_URBS 7 |
4773d1fb CL |
73 | #define INPUT_URBS 7 |
74 | ||
1da177e4 LT |
75 | |
76 | MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>"); | |
77 | MODULE_DESCRIPTION("USB Audio/MIDI helper module"); | |
78 | MODULE_LICENSE("Dual BSD/GPL"); | |
79 | ||
80 | ||
81 | struct usb_ms_header_descriptor { | |
82 | __u8 bLength; | |
83 | __u8 bDescriptorType; | |
84 | __u8 bDescriptorSubtype; | |
85 | __u8 bcdMSC[2]; | |
86 | __le16 wTotalLength; | |
87 | } __attribute__ ((packed)); | |
88 | ||
89 | struct usb_ms_endpoint_descriptor { | |
90 | __u8 bLength; | |
91 | __u8 bDescriptorType; | |
92 | __u8 bDescriptorSubtype; | |
93 | __u8 bNumEmbMIDIJack; | |
94 | __u8 baAssocJackID[0]; | |
95 | } __attribute__ ((packed)); | |
96 | ||
86e07d34 TI |
97 | struct snd_usb_midi_in_endpoint; |
98 | struct snd_usb_midi_out_endpoint; | |
99 | struct snd_usb_midi_endpoint; | |
1da177e4 LT |
100 | |
101 | struct usb_protocol_ops { | |
86e07d34 | 102 | void (*input)(struct snd_usb_midi_in_endpoint*, uint8_t*, int); |
ed4affa5 | 103 | void (*output)(struct snd_usb_midi_out_endpoint *ep, struct urb *urb); |
1da177e4 | 104 | void (*output_packet)(struct urb*, uint8_t, uint8_t, uint8_t, uint8_t); |
a509574e AG |
105 | void (*init_out_endpoint)(struct snd_usb_midi_out_endpoint *); |
106 | void (*finish_out_endpoint)(struct snd_usb_midi_out_endpoint *); | |
1da177e4 LT |
107 | }; |
108 | ||
109 | struct snd_usb_midi { | |
d82af9f9 CL |
110 | struct usb_device *dev; |
111 | struct snd_card *card; | |
1da177e4 | 112 | struct usb_interface *iface; |
86e07d34 TI |
113 | const struct snd_usb_audio_quirk *quirk; |
114 | struct snd_rawmidi *rmidi; | |
a509574e | 115 | struct usb_protocol_ops *usb_protocol_ops; |
1da177e4 | 116 | struct list_head list; |
c8846970 | 117 | struct timer_list error_timer; |
c0792e00 | 118 | spinlock_t disc_lock; |
59866da9 | 119 | struct rw_semaphore disc_rwsem; |
96f61d9a | 120 | struct mutex mutex; |
d82af9f9 CL |
121 | u32 usb_id; |
122 | int next_midi_device; | |
1da177e4 LT |
123 | |
124 | struct snd_usb_midi_endpoint { | |
86e07d34 TI |
125 | struct snd_usb_midi_out_endpoint *out; |
126 | struct snd_usb_midi_in_endpoint *in; | |
1da177e4 LT |
127 | } endpoints[MIDI_MAX_ENDPOINTS]; |
128 | unsigned long input_triggered; | |
f5f16541 | 129 | unsigned int opened[2]; |
c0792e00 | 130 | unsigned char disconnected; |
f5f16541 | 131 | unsigned char input_running; |
96f61d9a CL |
132 | |
133 | struct snd_kcontrol *roland_load_ctl; | |
1da177e4 LT |
134 | }; |
135 | ||
136 | struct snd_usb_midi_out_endpoint { | |
a509574e | 137 | struct snd_usb_midi *umidi; |
ed4affa5 CL |
138 | struct out_urb_context { |
139 | struct urb *urb; | |
140 | struct snd_usb_midi_out_endpoint *ep; | |
141 | } urbs[OUTPUT_URBS]; | |
142 | unsigned int active_urbs; | |
a65dd997 | 143 | unsigned int drain_urbs; |
1da177e4 LT |
144 | int max_transfer; /* size of urb buffer */ |
145 | struct tasklet_struct tasklet; | |
a65dd997 | 146 | unsigned int next_urb; |
1da177e4 LT |
147 | spinlock_t buffer_lock; |
148 | ||
149 | struct usbmidi_out_port { | |
a509574e | 150 | struct snd_usb_midi_out_endpoint *ep; |
86e07d34 | 151 | struct snd_rawmidi_substream *substream; |
1da177e4 LT |
152 | int active; |
153 | uint8_t cable; /* cable number << 4 */ | |
154 | uint8_t state; | |
155 | #define STATE_UNKNOWN 0 | |
156 | #define STATE_1PARAM 1 | |
157 | #define STATE_2PARAM_1 2 | |
158 | #define STATE_2PARAM_2 3 | |
159 | #define STATE_SYSEX_0 4 | |
160 | #define STATE_SYSEX_1 5 | |
161 | #define STATE_SYSEX_2 6 | |
162 | uint8_t data[2]; | |
163 | } ports[0x10]; | |
164 | int current_port; | |
a65dd997 CL |
165 | |
166 | wait_queue_head_t drain_wait; | |
1da177e4 LT |
167 | }; |
168 | ||
169 | struct snd_usb_midi_in_endpoint { | |
a509574e AG |
170 | struct snd_usb_midi *umidi; |
171 | struct urb *urbs[INPUT_URBS]; | |
1da177e4 | 172 | struct usbmidi_in_port { |
86e07d34 | 173 | struct snd_rawmidi_substream *substream; |
d05cc104 | 174 | u8 running_status_length; |
1da177e4 | 175 | } ports[0x10]; |
c8846970 CL |
176 | u8 seen_f5; |
177 | u8 error_resubmit; | |
1da177e4 LT |
178 | int current_port; |
179 | }; | |
180 | ||
a509574e | 181 | static void snd_usbmidi_do_output(struct snd_usb_midi_out_endpoint *ep); |
1da177e4 LT |
182 | |
183 | static const uint8_t snd_usbmidi_cin_length[] = { | |
184 | 0, 0, 2, 3, 3, 1, 2, 3, 3, 3, 3, 3, 2, 2, 3, 1 | |
185 | }; | |
186 | ||
187 | /* | |
188 | * Submits the URB, with error handling. | |
189 | */ | |
a509574e | 190 | static int snd_usbmidi_submit_urb(struct urb *urb, gfp_t flags) |
1da177e4 LT |
191 | { |
192 | int err = usb_submit_urb(urb, flags); | |
193 | if (err < 0 && err != -ENODEV) | |
0ba41d91 | 194 | dev_err(&urb->dev->dev, "usb_submit_urb: %d\n", err); |
1da177e4 LT |
195 | return err; |
196 | } | |
197 | ||
198 | /* | |
199 | * Error handling for URB completion functions. | |
200 | */ | |
0ba41d91 | 201 | static int snd_usbmidi_urb_error(const struct urb *urb) |
1da177e4 | 202 | { |
0ba41d91 | 203 | switch (urb->status) { |
c8846970 CL |
204 | /* manually unlinked, or device gone */ |
205 | case -ENOENT: | |
206 | case -ECONNRESET: | |
207 | case -ESHUTDOWN: | |
208 | case -ENODEV: | |
209 | return -ENODEV; | |
210 | /* errors that might occur during unplugging */ | |
38e2bfc9 PZ |
211 | case -EPROTO: |
212 | case -ETIME: | |
213 | case -EILSEQ: | |
c8846970 CL |
214 | return -EIO; |
215 | default: | |
0ba41d91 | 216 | dev_err(&urb->dev->dev, "urb status %d\n", urb->status); |
c8846970 CL |
217 | return 0; /* continue */ |
218 | } | |
1da177e4 LT |
219 | } |
220 | ||
221 | /* | |
222 | * Receives a chunk of MIDI data. | |
223 | */ | |
a509574e AG |
224 | static void snd_usbmidi_input_data(struct snd_usb_midi_in_endpoint *ep, |
225 | int portidx, uint8_t *data, int length) | |
1da177e4 | 226 | { |
a509574e | 227 | struct usbmidi_in_port *port = &ep->ports[portidx]; |
1da177e4 LT |
228 | |
229 | if (!port->substream) { | |
0ba41d91 | 230 | dev_dbg(&ep->umidi->dev->dev, "unexpected port %d!\n", portidx); |
1da177e4 LT |
231 | return; |
232 | } | |
233 | if (!test_bit(port->substream->number, &ep->umidi->input_triggered)) | |
234 | return; | |
235 | snd_rawmidi_receive(port->substream, data, length); | |
236 | } | |
237 | ||
238 | #ifdef DUMP_PACKETS | |
239 | static void dump_urb(const char *type, const u8 *data, int length) | |
240 | { | |
241 | snd_printk(KERN_DEBUG "%s packet: [", type); | |
242 | for (; length > 0; ++data, --length) | |
243 | printk(" %02x", *data); | |
244 | printk(" ]\n"); | |
245 | } | |
246 | #else | |
247 | #define dump_urb(type, data, length) /* nothing */ | |
248 | #endif | |
249 | ||
250 | /* | |
251 | * Processes the data read from the device. | |
252 | */ | |
a509574e | 253 | static void snd_usbmidi_in_urb_complete(struct urb *urb) |
1da177e4 | 254 | { |
a509574e | 255 | struct snd_usb_midi_in_endpoint *ep = urb->context; |
1da177e4 LT |
256 | |
257 | if (urb->status == 0) { | |
258 | dump_urb("received", urb->transfer_buffer, urb->actual_length); | |
259 | ep->umidi->usb_protocol_ops->input(ep, urb->transfer_buffer, | |
260 | urb->actual_length); | |
261 | } else { | |
0ba41d91 | 262 | int err = snd_usbmidi_urb_error(urb); |
c8846970 CL |
263 | if (err < 0) { |
264 | if (err != -ENODEV) { | |
265 | ep->error_resubmit = 1; | |
266 | mod_timer(&ep->umidi->error_timer, | |
267 | jiffies + ERROR_DELAY_JIFFIES); | |
268 | } | |
1da177e4 | 269 | return; |
c8846970 | 270 | } |
1da177e4 LT |
271 | } |
272 | ||
d82af9f9 | 273 | urb->dev = ep->umidi->dev; |
3cfc1eb1 | 274 | snd_usbmidi_submit_urb(urb, GFP_ATOMIC); |
1da177e4 LT |
275 | } |
276 | ||
a509574e | 277 | static void snd_usbmidi_out_urb_complete(struct urb *urb) |
1da177e4 | 278 | { |
ed4affa5 | 279 | struct out_urb_context *context = urb->context; |
a509574e | 280 | struct snd_usb_midi_out_endpoint *ep = context->ep; |
a65dd997 | 281 | unsigned int urb_index; |
1da177e4 LT |
282 | |
283 | spin_lock(&ep->buffer_lock); | |
a65dd997 CL |
284 | urb_index = context - ep->urbs; |
285 | ep->active_urbs &= ~(1 << urb_index); | |
286 | if (unlikely(ep->drain_urbs)) { | |
287 | ep->drain_urbs &= ~(1 << urb_index); | |
288 | wake_up(&ep->drain_wait); | |
289 | } | |
1da177e4 LT |
290 | spin_unlock(&ep->buffer_lock); |
291 | if (urb->status < 0) { | |
0ba41d91 | 292 | int err = snd_usbmidi_urb_error(urb); |
c8846970 CL |
293 | if (err < 0) { |
294 | if (err != -ENODEV) | |
295 | mod_timer(&ep->umidi->error_timer, | |
296 | jiffies + ERROR_DELAY_JIFFIES); | |
1da177e4 | 297 | return; |
c8846970 | 298 | } |
1da177e4 LT |
299 | } |
300 | snd_usbmidi_do_output(ep); | |
301 | } | |
302 | ||
303 | /* | |
304 | * This is called when some data should be transferred to the device | |
305 | * (from one or more substreams). | |
306 | */ | |
a509574e | 307 | static void snd_usbmidi_do_output(struct snd_usb_midi_out_endpoint *ep) |
1da177e4 | 308 | { |
ed4affa5 | 309 | unsigned int urb_index; |
a509574e | 310 | struct urb *urb; |
1da177e4 LT |
311 | unsigned long flags; |
312 | ||
313 | spin_lock_irqsave(&ep->buffer_lock, flags); | |
d82af9f9 | 314 | if (ep->umidi->disconnected) { |
1da177e4 LT |
315 | spin_unlock_irqrestore(&ep->buffer_lock, flags); |
316 | return; | |
317 | } | |
318 | ||
a65dd997 | 319 | urb_index = ep->next_urb; |
ed4affa5 | 320 | for (;;) { |
a65dd997 CL |
321 | if (!(ep->active_urbs & (1 << urb_index))) { |
322 | urb = ep->urbs[urb_index].urb; | |
323 | urb->transfer_buffer_length = 0; | |
324 | ep->umidi->usb_protocol_ops->output(ep, urb); | |
325 | if (urb->transfer_buffer_length == 0) | |
ed4affa5 | 326 | break; |
1da177e4 | 327 | |
a65dd997 CL |
328 | dump_urb("sending", urb->transfer_buffer, |
329 | urb->transfer_buffer_length); | |
d82af9f9 | 330 | urb->dev = ep->umidi->dev; |
a65dd997 CL |
331 | if (snd_usbmidi_submit_urb(urb, GFP_ATOMIC) < 0) |
332 | break; | |
333 | ep->active_urbs |= 1 << urb_index; | |
334 | } | |
335 | if (++urb_index >= OUTPUT_URBS) | |
336 | urb_index = 0; | |
337 | if (urb_index == ep->next_urb) | |
ed4affa5 | 338 | break; |
1da177e4 | 339 | } |
a65dd997 | 340 | ep->next_urb = urb_index; |
1da177e4 LT |
341 | spin_unlock_irqrestore(&ep->buffer_lock, flags); |
342 | } | |
343 | ||
344 | static void snd_usbmidi_out_tasklet(unsigned long data) | |
345 | { | |
a509574e AG |
346 | struct snd_usb_midi_out_endpoint *ep = |
347 | (struct snd_usb_midi_out_endpoint *) data; | |
1da177e4 LT |
348 | |
349 | snd_usbmidi_do_output(ep); | |
350 | } | |
351 | ||
c8846970 CL |
352 | /* called after transfers had been interrupted due to some USB error */ |
353 | static void snd_usbmidi_error_timer(unsigned long data) | |
354 | { | |
86e07d34 | 355 | struct snd_usb_midi *umidi = (struct snd_usb_midi *)data; |
4773d1fb | 356 | unsigned int i, j; |
c8846970 | 357 | |
c0792e00 TI |
358 | spin_lock(&umidi->disc_lock); |
359 | if (umidi->disconnected) { | |
360 | spin_unlock(&umidi->disc_lock); | |
361 | return; | |
362 | } | |
c8846970 | 363 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { |
86e07d34 | 364 | struct snd_usb_midi_in_endpoint *in = umidi->endpoints[i].in; |
c8846970 CL |
365 | if (in && in->error_resubmit) { |
366 | in->error_resubmit = 0; | |
4773d1fb | 367 | for (j = 0; j < INPUT_URBS; ++j) { |
d82af9f9 | 368 | in->urbs[j]->dev = umidi->dev; |
4773d1fb CL |
369 | snd_usbmidi_submit_urb(in->urbs[j], GFP_ATOMIC); |
370 | } | |
c8846970 CL |
371 | } |
372 | if (umidi->endpoints[i].out) | |
373 | snd_usbmidi_do_output(umidi->endpoints[i].out); | |
374 | } | |
c0792e00 | 375 | spin_unlock(&umidi->disc_lock); |
c8846970 CL |
376 | } |
377 | ||
1da177e4 | 378 | /* helper function to send static data that may not DMA-able */ |
a509574e | 379 | static int send_bulk_static_data(struct snd_usb_midi_out_endpoint *ep, |
1da177e4 LT |
380 | const void *data, int len) |
381 | { | |
ed4affa5 | 382 | int err = 0; |
52978be6 | 383 | void *buf = kmemdup(data, len, GFP_KERNEL); |
1da177e4 LT |
384 | if (!buf) |
385 | return -ENOMEM; | |
1da177e4 | 386 | dump_urb("sending", buf, len); |
ed4affa5 | 387 | if (ep->urbs[0].urb) |
d82af9f9 | 388 | err = usb_bulk_msg(ep->umidi->dev, ep->urbs[0].urb->pipe, |
ed4affa5 | 389 | buf, len, NULL, 250); |
1da177e4 LT |
390 | kfree(buf); |
391 | return err; | |
392 | } | |
393 | ||
394 | /* | |
395 | * Standard USB MIDI protocol: see the spec. | |
396 | * Midiman protocol: like the standard protocol, but the control byte is the | |
397 | * fourth byte in each packet, and uses length instead of CIN. | |
398 | */ | |
399 | ||
a509574e AG |
400 | static void snd_usbmidi_standard_input(struct snd_usb_midi_in_endpoint *ep, |
401 | uint8_t *buffer, int buffer_length) | |
1da177e4 LT |
402 | { |
403 | int i; | |
404 | ||
405 | for (i = 0; i + 3 < buffer_length; i += 4) | |
406 | if (buffer[i] != 0) { | |
407 | int cable = buffer[i] >> 4; | |
408 | int length = snd_usbmidi_cin_length[buffer[i] & 0x0f]; | |
a509574e AG |
409 | snd_usbmidi_input_data(ep, cable, &buffer[i + 1], |
410 | length); | |
1da177e4 LT |
411 | } |
412 | } | |
413 | ||
a509574e AG |
414 | static void snd_usbmidi_midiman_input(struct snd_usb_midi_in_endpoint *ep, |
415 | uint8_t *buffer, int buffer_length) | |
1da177e4 LT |
416 | { |
417 | int i; | |
418 | ||
419 | for (i = 0; i + 3 < buffer_length; i += 4) | |
420 | if (buffer[i + 3] != 0) { | |
421 | int port = buffer[i + 3] >> 4; | |
422 | int length = buffer[i + 3] & 3; | |
423 | snd_usbmidi_input_data(ep, port, &buffer[i], length); | |
424 | } | |
425 | } | |
426 | ||
d05cc104 CL |
427 | /* |
428 | * Buggy M-Audio device: running status on input results in a packet that has | |
429 | * the data bytes but not the status byte and that is marked with CIN 4. | |
430 | */ | |
431 | static void snd_usbmidi_maudio_broken_running_status_input( | |
a509574e AG |
432 | struct snd_usb_midi_in_endpoint *ep, |
433 | uint8_t *buffer, int buffer_length) | |
d05cc104 CL |
434 | { |
435 | int i; | |
436 | ||
437 | for (i = 0; i + 3 < buffer_length; i += 4) | |
438 | if (buffer[i] != 0) { | |
439 | int cable = buffer[i] >> 4; | |
440 | u8 cin = buffer[i] & 0x0f; | |
441 | struct usbmidi_in_port *port = &ep->ports[cable]; | |
442 | int length; | |
21af7d8c | 443 | |
d05cc104 CL |
444 | length = snd_usbmidi_cin_length[cin]; |
445 | if (cin == 0xf && buffer[i + 1] >= 0xf8) | |
446 | ; /* realtime msg: no running status change */ | |
447 | else if (cin >= 0x8 && cin <= 0xe) | |
448 | /* channel msg */ | |
449 | port->running_status_length = length - 1; | |
450 | else if (cin == 0x4 && | |
451 | port->running_status_length != 0 && | |
452 | buffer[i + 1] < 0x80) | |
453 | /* CIN 4 that is not a SysEx */ | |
454 | length = port->running_status_length; | |
455 | else | |
456 | /* | |
457 | * All other msgs cannot begin running status. | |
458 | * (A channel msg sent as two or three CIN 0xF | |
459 | * packets could in theory, but this device | |
460 | * doesn't use this format.) | |
461 | */ | |
462 | port->running_status_length = 0; | |
a509574e AG |
463 | snd_usbmidi_input_data(ep, cable, &buffer[i + 1], |
464 | length); | |
d05cc104 CL |
465 | } |
466 | } | |
467 | ||
61870aed CL |
468 | /* |
469 | * CME protocol: like the standard protocol, but SysEx commands are sent as a | |
470 | * single USB packet preceded by a 0x0F byte. | |
471 | */ | |
472 | static void snd_usbmidi_cme_input(struct snd_usb_midi_in_endpoint *ep, | |
473 | uint8_t *buffer, int buffer_length) | |
474 | { | |
475 | if (buffer_length < 2 || (buffer[0] & 0x0f) != 0x0f) | |
476 | snd_usbmidi_standard_input(ep, buffer, buffer_length); | |
477 | else | |
478 | snd_usbmidi_input_data(ep, buffer[0] >> 4, | |
479 | &buffer[1], buffer_length - 1); | |
480 | } | |
481 | ||
1da177e4 LT |
482 | /* |
483 | * Adds one USB MIDI packet to the output buffer. | |
484 | */ | |
a509574e AG |
485 | static void snd_usbmidi_output_standard_packet(struct urb *urb, uint8_t p0, |
486 | uint8_t p1, uint8_t p2, | |
487 | uint8_t p3) | |
1da177e4 LT |
488 | { |
489 | ||
a509574e AG |
490 | uint8_t *buf = |
491 | (uint8_t *)urb->transfer_buffer + urb->transfer_buffer_length; | |
1da177e4 LT |
492 | buf[0] = p0; |
493 | buf[1] = p1; | |
494 | buf[2] = p2; | |
495 | buf[3] = p3; | |
496 | urb->transfer_buffer_length += 4; | |
497 | } | |
498 | ||
499 | /* | |
500 | * Adds one Midiman packet to the output buffer. | |
501 | */ | |
a509574e AG |
502 | static void snd_usbmidi_output_midiman_packet(struct urb *urb, uint8_t p0, |
503 | uint8_t p1, uint8_t p2, | |
504 | uint8_t p3) | |
1da177e4 LT |
505 | { |
506 | ||
a509574e AG |
507 | uint8_t *buf = |
508 | (uint8_t *)urb->transfer_buffer + urb->transfer_buffer_length; | |
1da177e4 LT |
509 | buf[0] = p1; |
510 | buf[1] = p2; | |
511 | buf[2] = p3; | |
512 | buf[3] = (p0 & 0xf0) | snd_usbmidi_cin_length[p0 & 0x0f]; | |
513 | urb->transfer_buffer_length += 4; | |
514 | } | |
515 | ||
516 | /* | |
517 | * Converts MIDI commands to USB MIDI packets. | |
518 | */ | |
a509574e AG |
519 | static void snd_usbmidi_transmit_byte(struct usbmidi_out_port *port, |
520 | uint8_t b, struct urb *urb) | |
1da177e4 LT |
521 | { |
522 | uint8_t p0 = port->cable; | |
523 | void (*output_packet)(struct urb*, uint8_t, uint8_t, uint8_t, uint8_t) = | |
524 | port->ep->umidi->usb_protocol_ops->output_packet; | |
525 | ||
526 | if (b >= 0xf8) { | |
527 | output_packet(urb, p0 | 0x0f, b, 0, 0); | |
528 | } else if (b >= 0xf0) { | |
529 | switch (b) { | |
530 | case 0xf0: | |
531 | port->data[0] = b; | |
532 | port->state = STATE_SYSEX_1; | |
533 | break; | |
534 | case 0xf1: | |
535 | case 0xf3: | |
536 | port->data[0] = b; | |
537 | port->state = STATE_1PARAM; | |
538 | break; | |
539 | case 0xf2: | |
540 | port->data[0] = b; | |
541 | port->state = STATE_2PARAM_1; | |
542 | break; | |
543 | case 0xf4: | |
544 | case 0xf5: | |
545 | port->state = STATE_UNKNOWN; | |
546 | break; | |
547 | case 0xf6: | |
548 | output_packet(urb, p0 | 0x05, 0xf6, 0, 0); | |
549 | port->state = STATE_UNKNOWN; | |
550 | break; | |
551 | case 0xf7: | |
552 | switch (port->state) { | |
553 | case STATE_SYSEX_0: | |
554 | output_packet(urb, p0 | 0x05, 0xf7, 0, 0); | |
555 | break; | |
556 | case STATE_SYSEX_1: | |
a509574e AG |
557 | output_packet(urb, p0 | 0x06, port->data[0], |
558 | 0xf7, 0); | |
1da177e4 LT |
559 | break; |
560 | case STATE_SYSEX_2: | |
a509574e AG |
561 | output_packet(urb, p0 | 0x07, port->data[0], |
562 | port->data[1], 0xf7); | |
1da177e4 LT |
563 | break; |
564 | } | |
565 | port->state = STATE_UNKNOWN; | |
566 | break; | |
567 | } | |
568 | } else if (b >= 0x80) { | |
569 | port->data[0] = b; | |
570 | if (b >= 0xc0 && b <= 0xdf) | |
571 | port->state = STATE_1PARAM; | |
572 | else | |
573 | port->state = STATE_2PARAM_1; | |
574 | } else { /* b < 0x80 */ | |
575 | switch (port->state) { | |
576 | case STATE_1PARAM: | |
577 | if (port->data[0] < 0xf0) { | |
578 | p0 |= port->data[0] >> 4; | |
579 | } else { | |
580 | p0 |= 0x02; | |
581 | port->state = STATE_UNKNOWN; | |
582 | } | |
583 | output_packet(urb, p0, port->data[0], b, 0); | |
584 | break; | |
585 | case STATE_2PARAM_1: | |
586 | port->data[1] = b; | |
587 | port->state = STATE_2PARAM_2; | |
588 | break; | |
589 | case STATE_2PARAM_2: | |
590 | if (port->data[0] < 0xf0) { | |
591 | p0 |= port->data[0] >> 4; | |
592 | port->state = STATE_2PARAM_1; | |
593 | } else { | |
594 | p0 |= 0x03; | |
595 | port->state = STATE_UNKNOWN; | |
596 | } | |
597 | output_packet(urb, p0, port->data[0], port->data[1], b); | |
598 | break; | |
599 | case STATE_SYSEX_0: | |
600 | port->data[0] = b; | |
601 | port->state = STATE_SYSEX_1; | |
602 | break; | |
603 | case STATE_SYSEX_1: | |
604 | port->data[1] = b; | |
605 | port->state = STATE_SYSEX_2; | |
606 | break; | |
607 | case STATE_SYSEX_2: | |
a509574e AG |
608 | output_packet(urb, p0 | 0x04, port->data[0], |
609 | port->data[1], b); | |
1da177e4 LT |
610 | port->state = STATE_SYSEX_0; |
611 | break; | |
612 | } | |
613 | } | |
614 | } | |
615 | ||
a509574e | 616 | static void snd_usbmidi_standard_output(struct snd_usb_midi_out_endpoint *ep, |
ed4affa5 | 617 | struct urb *urb) |
1da177e4 | 618 | { |
1da177e4 LT |
619 | int p; |
620 | ||
621 | /* FIXME: lower-numbered ports can starve higher-numbered ports */ | |
622 | for (p = 0; p < 0x10; ++p) { | |
a509574e | 623 | struct usbmidi_out_port *port = &ep->ports[p]; |
1da177e4 LT |
624 | if (!port->active) |
625 | continue; | |
626 | while (urb->transfer_buffer_length + 3 < ep->max_transfer) { | |
627 | uint8_t b; | |
628 | if (snd_rawmidi_transmit(port->substream, &b, 1) != 1) { | |
629 | port->active = 0; | |
630 | break; | |
631 | } | |
632 | snd_usbmidi_transmit_byte(port, b, urb); | |
633 | } | |
634 | } | |
635 | } | |
636 | ||
637 | static struct usb_protocol_ops snd_usbmidi_standard_ops = { | |
638 | .input = snd_usbmidi_standard_input, | |
639 | .output = snd_usbmidi_standard_output, | |
640 | .output_packet = snd_usbmidi_output_standard_packet, | |
641 | }; | |
642 | ||
643 | static struct usb_protocol_ops snd_usbmidi_midiman_ops = { | |
644 | .input = snd_usbmidi_midiman_input, | |
21af7d8c | 645 | .output = snd_usbmidi_standard_output, |
1da177e4 LT |
646 | .output_packet = snd_usbmidi_output_midiman_packet, |
647 | }; | |
648 | ||
d05cc104 CL |
649 | static struct usb_protocol_ops snd_usbmidi_maudio_broken_running_status_ops = { |
650 | .input = snd_usbmidi_maudio_broken_running_status_input, | |
21af7d8c | 651 | .output = snd_usbmidi_standard_output, |
d05cc104 CL |
652 | .output_packet = snd_usbmidi_output_standard_packet, |
653 | }; | |
654 | ||
61870aed CL |
655 | static struct usb_protocol_ops snd_usbmidi_cme_ops = { |
656 | .input = snd_usbmidi_cme_input, | |
657 | .output = snd_usbmidi_standard_output, | |
658 | .output_packet = snd_usbmidi_output_standard_packet, | |
659 | }; | |
660 | ||
4434ade8 KF |
661 | /* |
662 | * AKAI MPD16 protocol: | |
663 | * | |
664 | * For control port (endpoint 1): | |
665 | * ============================== | |
666 | * One or more chunks consisting of first byte of (0x10 | msg_len) and then a | |
667 | * SysEx message (msg_len=9 bytes long). | |
668 | * | |
669 | * For data port (endpoint 2): | |
670 | * =========================== | |
671 | * One or more chunks consisting of first byte of (0x20 | msg_len) and then a | |
672 | * MIDI message (msg_len bytes long) | |
673 | * | |
674 | * Messages sent: Active Sense, Note On, Poly Pressure, Control Change. | |
675 | */ | |
676 | static void snd_usbmidi_akai_input(struct snd_usb_midi_in_endpoint *ep, | |
677 | uint8_t *buffer, int buffer_length) | |
678 | { | |
679 | unsigned int pos = 0; | |
680 | unsigned int len = (unsigned int)buffer_length; | |
681 | while (pos < len) { | |
682 | unsigned int port = (buffer[pos] >> 4) - 1; | |
683 | unsigned int msg_len = buffer[pos] & 0x0f; | |
684 | pos++; | |
685 | if (pos + msg_len <= len && port < 2) | |
686 | snd_usbmidi_input_data(ep, 0, &buffer[pos], msg_len); | |
687 | pos += msg_len; | |
688 | } | |
689 | } | |
690 | ||
691 | #define MAX_AKAI_SYSEX_LEN 9 | |
692 | ||
693 | static void snd_usbmidi_akai_output(struct snd_usb_midi_out_endpoint *ep, | |
694 | struct urb *urb) | |
695 | { | |
696 | uint8_t *msg; | |
697 | int pos, end, count, buf_end; | |
698 | uint8_t tmp[MAX_AKAI_SYSEX_LEN]; | |
699 | struct snd_rawmidi_substream *substream = ep->ports[0].substream; | |
700 | ||
701 | if (!ep->ports[0].active) | |
702 | return; | |
703 | ||
704 | msg = urb->transfer_buffer + urb->transfer_buffer_length; | |
705 | buf_end = ep->max_transfer - MAX_AKAI_SYSEX_LEN - 1; | |
706 | ||
707 | /* only try adding more data when there's space for at least 1 SysEx */ | |
708 | while (urb->transfer_buffer_length < buf_end) { | |
709 | count = snd_rawmidi_transmit_peek(substream, | |
710 | tmp, MAX_AKAI_SYSEX_LEN); | |
711 | if (!count) { | |
712 | ep->ports[0].active = 0; | |
713 | return; | |
714 | } | |
715 | /* try to skip non-SysEx data */ | |
716 | for (pos = 0; pos < count && tmp[pos] != 0xF0; pos++) | |
717 | ; | |
718 | ||
719 | if (pos > 0) { | |
720 | snd_rawmidi_transmit_ack(substream, pos); | |
721 | continue; | |
722 | } | |
723 | ||
724 | /* look for the start or end marker */ | |
725 | for (end = 1; end < count && tmp[end] < 0xF0; end++) | |
726 | ; | |
727 | ||
728 | /* next SysEx started before the end of current one */ | |
729 | if (end < count && tmp[end] == 0xF0) { | |
730 | /* it's incomplete - drop it */ | |
731 | snd_rawmidi_transmit_ack(substream, end); | |
732 | continue; | |
733 | } | |
734 | /* SysEx complete */ | |
735 | if (end < count && tmp[end] == 0xF7) { | |
736 | /* queue it, ack it, and get the next one */ | |
737 | count = end + 1; | |
738 | msg[0] = 0x10 | count; | |
739 | memcpy(&msg[1], tmp, count); | |
740 | snd_rawmidi_transmit_ack(substream, count); | |
741 | urb->transfer_buffer_length += count + 1; | |
742 | msg += count + 1; | |
743 | continue; | |
744 | } | |
745 | /* less than 9 bytes and no end byte - wait for more */ | |
746 | if (count < MAX_AKAI_SYSEX_LEN) { | |
747 | ep->ports[0].active = 0; | |
748 | return; | |
749 | } | |
750 | /* 9 bytes and no end marker in sight - malformed, skip it */ | |
751 | snd_rawmidi_transmit_ack(substream, count); | |
752 | } | |
753 | } | |
754 | ||
755 | static struct usb_protocol_ops snd_usbmidi_akai_ops = { | |
756 | .input = snd_usbmidi_akai_input, | |
757 | .output = snd_usbmidi_akai_output, | |
758 | }; | |
759 | ||
1da177e4 LT |
760 | /* |
761 | * Novation USB MIDI protocol: number of data bytes is in the first byte | |
762 | * (when receiving) (+1!) or in the second byte (when sending); data begins | |
763 | * at the third byte. | |
764 | */ | |
765 | ||
a509574e AG |
766 | static void snd_usbmidi_novation_input(struct snd_usb_midi_in_endpoint *ep, |
767 | uint8_t *buffer, int buffer_length) | |
1da177e4 LT |
768 | { |
769 | if (buffer_length < 2 || !buffer[0] || buffer_length < buffer[0] + 1) | |
770 | return; | |
771 | snd_usbmidi_input_data(ep, 0, &buffer[2], buffer[0] - 1); | |
772 | } | |
773 | ||
a509574e | 774 | static void snd_usbmidi_novation_output(struct snd_usb_midi_out_endpoint *ep, |
ed4affa5 | 775 | struct urb *urb) |
1da177e4 | 776 | { |
a509574e | 777 | uint8_t *transfer_buffer; |
1da177e4 LT |
778 | int count; |
779 | ||
780 | if (!ep->ports[0].active) | |
781 | return; | |
ed4affa5 | 782 | transfer_buffer = urb->transfer_buffer; |
1da177e4 LT |
783 | count = snd_rawmidi_transmit(ep->ports[0].substream, |
784 | &transfer_buffer[2], | |
785 | ep->max_transfer - 2); | |
786 | if (count < 1) { | |
787 | ep->ports[0].active = 0; | |
788 | return; | |
789 | } | |
790 | transfer_buffer[0] = 0; | |
791 | transfer_buffer[1] = count; | |
ed4affa5 | 792 | urb->transfer_buffer_length = 2 + count; |
1da177e4 LT |
793 | } |
794 | ||
795 | static struct usb_protocol_ops snd_usbmidi_novation_ops = { | |
796 | .input = snd_usbmidi_novation_input, | |
797 | .output = snd_usbmidi_novation_output, | |
798 | }; | |
799 | ||
800 | /* | |
c7f57216 | 801 | * "raw" protocol: just move raw MIDI bytes from/to the endpoint |
1da177e4 LT |
802 | */ |
803 | ||
a509574e AG |
804 | static void snd_usbmidi_raw_input(struct snd_usb_midi_in_endpoint *ep, |
805 | uint8_t *buffer, int buffer_length) | |
1da177e4 LT |
806 | { |
807 | snd_usbmidi_input_data(ep, 0, buffer, buffer_length); | |
808 | } | |
809 | ||
a509574e | 810 | static void snd_usbmidi_raw_output(struct snd_usb_midi_out_endpoint *ep, |
ed4affa5 | 811 | struct urb *urb) |
1da177e4 LT |
812 | { |
813 | int count; | |
814 | ||
815 | if (!ep->ports[0].active) | |
816 | return; | |
817 | count = snd_rawmidi_transmit(ep->ports[0].substream, | |
ed4affa5 | 818 | urb->transfer_buffer, |
1da177e4 LT |
819 | ep->max_transfer); |
820 | if (count < 1) { | |
821 | ep->ports[0].active = 0; | |
822 | return; | |
823 | } | |
ed4affa5 | 824 | urb->transfer_buffer_length = count; |
1da177e4 LT |
825 | } |
826 | ||
6155aff8 CL |
827 | static struct usb_protocol_ops snd_usbmidi_raw_ops = { |
828 | .input = snd_usbmidi_raw_input, | |
829 | .output = snd_usbmidi_raw_output, | |
1da177e4 LT |
830 | }; |
831 | ||
1ef0e0a0 KA |
832 | /* |
833 | * FTDI protocol: raw MIDI bytes, but input packets have two modem status bytes. | |
834 | */ | |
835 | ||
a509574e AG |
836 | static void snd_usbmidi_ftdi_input(struct snd_usb_midi_in_endpoint *ep, |
837 | uint8_t *buffer, int buffer_length) | |
1ef0e0a0 KA |
838 | { |
839 | if (buffer_length > 2) | |
840 | snd_usbmidi_input_data(ep, 0, buffer + 2, buffer_length - 2); | |
841 | } | |
842 | ||
843 | static struct usb_protocol_ops snd_usbmidi_ftdi_ops = { | |
844 | .input = snd_usbmidi_ftdi_input, | |
845 | .output = snd_usbmidi_raw_output, | |
846 | }; | |
847 | ||
030a07e4 KW |
848 | static void snd_usbmidi_us122l_input(struct snd_usb_midi_in_endpoint *ep, |
849 | uint8_t *buffer, int buffer_length) | |
850 | { | |
851 | if (buffer_length != 9) | |
852 | return; | |
853 | buffer_length = 8; | |
854 | while (buffer_length && buffer[buffer_length - 1] == 0xFD) | |
855 | buffer_length--; | |
856 | if (buffer_length) | |
857 | snd_usbmidi_input_data(ep, 0, buffer, buffer_length); | |
858 | } | |
859 | ||
ed4affa5 CL |
860 | static void snd_usbmidi_us122l_output(struct snd_usb_midi_out_endpoint *ep, |
861 | struct urb *urb) | |
030a07e4 KW |
862 | { |
863 | int count; | |
864 | ||
865 | if (!ep->ports[0].active) | |
866 | return; | |
4f4e8f69 PZ |
867 | switch (snd_usb_get_speed(ep->umidi->dev)) { |
868 | case USB_SPEED_HIGH: | |
869 | case USB_SPEED_SUPER: | |
870 | count = 1; | |
871 | break; | |
872 | default: | |
873 | count = 2; | |
874 | } | |
030a07e4 | 875 | count = snd_rawmidi_transmit(ep->ports[0].substream, |
ed4affa5 | 876 | urb->transfer_buffer, |
030a07e4 KW |
877 | count); |
878 | if (count < 1) { | |
879 | ep->ports[0].active = 0; | |
880 | return; | |
881 | } | |
882 | ||
921eebdc KW |
883 | memset(urb->transfer_buffer + count, 0xFD, ep->max_transfer - count); |
884 | urb->transfer_buffer_length = ep->max_transfer; | |
030a07e4 KW |
885 | } |
886 | ||
887 | static struct usb_protocol_ops snd_usbmidi_122l_ops = { | |
888 | .input = snd_usbmidi_us122l_input, | |
889 | .output = snd_usbmidi_us122l_output, | |
890 | }; | |
891 | ||
1da177e4 LT |
892 | /* |
893 | * Emagic USB MIDI protocol: raw MIDI with "F5 xx" port switching. | |
894 | */ | |
895 | ||
a509574e | 896 | static void snd_usbmidi_emagic_init_out(struct snd_usb_midi_out_endpoint *ep) |
1da177e4 LT |
897 | { |
898 | static const u8 init_data[] = { | |
899 | /* initialization magic: "get version" */ | |
900 | 0xf0, | |
901 | 0x00, 0x20, 0x31, /* Emagic */ | |
902 | 0x64, /* Unitor8 */ | |
903 | 0x0b, /* version number request */ | |
904 | 0x00, /* command version */ | |
905 | 0x00, /* EEPROM, box 0 */ | |
906 | 0xf7 | |
907 | }; | |
908 | send_bulk_static_data(ep, init_data, sizeof(init_data)); | |
909 | /* while we're at it, pour on more magic */ | |
910 | send_bulk_static_data(ep, init_data, sizeof(init_data)); | |
911 | } | |
912 | ||
a509574e | 913 | static void snd_usbmidi_emagic_finish_out(struct snd_usb_midi_out_endpoint *ep) |
1da177e4 LT |
914 | { |
915 | static const u8 finish_data[] = { | |
916 | /* switch to patch mode with last preset */ | |
917 | 0xf0, | |
918 | 0x00, 0x20, 0x31, /* Emagic */ | |
919 | 0x64, /* Unitor8 */ | |
920 | 0x10, /* patch switch command */ | |
921 | 0x00, /* command version */ | |
922 | 0x7f, /* to all boxes */ | |
923 | 0x40, /* last preset in EEPROM */ | |
924 | 0xf7 | |
925 | }; | |
926 | send_bulk_static_data(ep, finish_data, sizeof(finish_data)); | |
927 | } | |
928 | ||
a509574e AG |
929 | static void snd_usbmidi_emagic_input(struct snd_usb_midi_in_endpoint *ep, |
930 | uint8_t *buffer, int buffer_length) | |
1da177e4 | 931 | { |
c347e9fc CL |
932 | int i; |
933 | ||
934 | /* FF indicates end of valid data */ | |
935 | for (i = 0; i < buffer_length; ++i) | |
936 | if (buffer[i] == 0xff) { | |
937 | buffer_length = i; | |
938 | break; | |
939 | } | |
1da177e4 LT |
940 | |
941 | /* handle F5 at end of last buffer */ | |
942 | if (ep->seen_f5) | |
943 | goto switch_port; | |
944 | ||
945 | while (buffer_length > 0) { | |
1da177e4 LT |
946 | /* determine size of data until next F5 */ |
947 | for (i = 0; i < buffer_length; ++i) | |
948 | if (buffer[i] == 0xf5) | |
949 | break; | |
950 | snd_usbmidi_input_data(ep, ep->current_port, buffer, i); | |
951 | buffer += i; | |
952 | buffer_length -= i; | |
953 | ||
954 | if (buffer_length <= 0) | |
955 | break; | |
956 | /* assert(buffer[0] == 0xf5); */ | |
957 | ep->seen_f5 = 1; | |
958 | ++buffer; | |
959 | --buffer_length; | |
960 | ||
961 | switch_port: | |
962 | if (buffer_length <= 0) | |
963 | break; | |
964 | if (buffer[0] < 0x80) { | |
965 | ep->current_port = (buffer[0] - 1) & 15; | |
966 | ++buffer; | |
967 | --buffer_length; | |
968 | } | |
969 | ep->seen_f5 = 0; | |
970 | } | |
971 | } | |
972 | ||
a509574e | 973 | static void snd_usbmidi_emagic_output(struct snd_usb_midi_out_endpoint *ep, |
ed4affa5 | 974 | struct urb *urb) |
1da177e4 LT |
975 | { |
976 | int port0 = ep->current_port; | |
a509574e | 977 | uint8_t *buf = urb->transfer_buffer; |
1da177e4 LT |
978 | int buf_free = ep->max_transfer; |
979 | int length, i; | |
980 | ||
981 | for (i = 0; i < 0x10; ++i) { | |
982 | /* round-robin, starting at the last current port */ | |
983 | int portnum = (port0 + i) & 15; | |
a509574e | 984 | struct usbmidi_out_port *port = &ep->ports[portnum]; |
1da177e4 LT |
985 | |
986 | if (!port->active) | |
987 | continue; | |
988 | if (snd_rawmidi_transmit_peek(port->substream, buf, 1) != 1) { | |
989 | port->active = 0; | |
990 | continue; | |
991 | } | |
992 | ||
993 | if (portnum != ep->current_port) { | |
994 | if (buf_free < 2) | |
995 | break; | |
996 | ep->current_port = portnum; | |
997 | buf[0] = 0xf5; | |
998 | buf[1] = (portnum + 1) & 15; | |
999 | buf += 2; | |
1000 | buf_free -= 2; | |
1001 | } | |
1002 | ||
1003 | if (buf_free < 1) | |
1004 | break; | |
1005 | length = snd_rawmidi_transmit(port->substream, buf, buf_free); | |
1006 | if (length > 0) { | |
1007 | buf += length; | |
1008 | buf_free -= length; | |
1009 | if (buf_free < 1) | |
1010 | break; | |
1011 | } | |
1012 | } | |
c347e9fc CL |
1013 | if (buf_free < ep->max_transfer && buf_free > 0) { |
1014 | *buf = 0xff; | |
1015 | --buf_free; | |
1016 | } | |
ed4affa5 | 1017 | urb->transfer_buffer_length = ep->max_transfer - buf_free; |
1da177e4 LT |
1018 | } |
1019 | ||
1020 | static struct usb_protocol_ops snd_usbmidi_emagic_ops = { | |
1021 | .input = snd_usbmidi_emagic_input, | |
1022 | .output = snd_usbmidi_emagic_output, | |
1023 | .init_out_endpoint = snd_usbmidi_emagic_init_out, | |
1024 | .finish_out_endpoint = snd_usbmidi_emagic_finish_out, | |
1025 | }; | |
1026 | ||
1027 | ||
a509574e | 1028 | static void update_roland_altsetting(struct snd_usb_midi *umidi) |
96f61d9a CL |
1029 | { |
1030 | struct usb_interface *intf; | |
1031 | struct usb_host_interface *hostif; | |
1032 | struct usb_interface_descriptor *intfd; | |
1033 | int is_light_load; | |
1034 | ||
1035 | intf = umidi->iface; | |
1036 | is_light_load = intf->cur_altsetting != intf->altsetting; | |
1037 | if (umidi->roland_load_ctl->private_value == is_light_load) | |
1038 | return; | |
1039 | hostif = &intf->altsetting[umidi->roland_load_ctl->private_value]; | |
1040 | intfd = get_iface_desc(hostif); | |
1041 | snd_usbmidi_input_stop(&umidi->list); | |
d82af9f9 | 1042 | usb_set_interface(umidi->dev, intfd->bInterfaceNumber, |
96f61d9a CL |
1043 | intfd->bAlternateSetting); |
1044 | snd_usbmidi_input_start(&umidi->list); | |
1045 | } | |
1046 | ||
f5f16541 TI |
1047 | static int substream_open(struct snd_rawmidi_substream *substream, int dir, |
1048 | int open) | |
96f61d9a | 1049 | { |
a509574e | 1050 | struct snd_usb_midi *umidi = substream->rmidi->private_data; |
96f61d9a CL |
1051 | struct snd_kcontrol *ctl; |
1052 | ||
59866da9 TI |
1053 | down_read(&umidi->disc_rwsem); |
1054 | if (umidi->disconnected) { | |
1055 | up_read(&umidi->disc_rwsem); | |
f5f16541 | 1056 | return open ? -ENODEV : 0; |
59866da9 TI |
1057 | } |
1058 | ||
96f61d9a CL |
1059 | mutex_lock(&umidi->mutex); |
1060 | if (open) { | |
f5f16541 | 1061 | if (!umidi->opened[0] && !umidi->opened[1]) { |
f5f16541 TI |
1062 | if (umidi->roland_load_ctl) { |
1063 | ctl = umidi->roland_load_ctl; | |
a509574e AG |
1064 | ctl->vd[0].access |= |
1065 | SNDRV_CTL_ELEM_ACCESS_INACTIVE; | |
f5f16541 | 1066 | snd_ctl_notify(umidi->card, |
96f61d9a | 1067 | SNDRV_CTL_EVENT_MASK_INFO, &ctl->id); |
f5f16541 TI |
1068 | update_roland_altsetting(umidi); |
1069 | } | |
96f61d9a | 1070 | } |
f5f16541 TI |
1071 | umidi->opened[dir]++; |
1072 | if (umidi->opened[1]) | |
1073 | snd_usbmidi_input_start(&umidi->list); | |
96f61d9a | 1074 | } else { |
f5f16541 TI |
1075 | umidi->opened[dir]--; |
1076 | if (!umidi->opened[1]) | |
1077 | snd_usbmidi_input_stop(&umidi->list); | |
1078 | if (!umidi->opened[0] && !umidi->opened[1]) { | |
1079 | if (umidi->roland_load_ctl) { | |
1080 | ctl = umidi->roland_load_ctl; | |
a509574e AG |
1081 | ctl->vd[0].access &= |
1082 | ~SNDRV_CTL_ELEM_ACCESS_INACTIVE; | |
f5f16541 | 1083 | snd_ctl_notify(umidi->card, |
96f61d9a | 1084 | SNDRV_CTL_EVENT_MASK_INFO, &ctl->id); |
f5f16541 | 1085 | } |
96f61d9a CL |
1086 | } |
1087 | } | |
1088 | mutex_unlock(&umidi->mutex); | |
59866da9 | 1089 | up_read(&umidi->disc_rwsem); |
f5f16541 | 1090 | return 0; |
96f61d9a CL |
1091 | } |
1092 | ||
86e07d34 | 1093 | static int snd_usbmidi_output_open(struct snd_rawmidi_substream *substream) |
1da177e4 | 1094 | { |
a509574e AG |
1095 | struct snd_usb_midi *umidi = substream->rmidi->private_data; |
1096 | struct usbmidi_out_port *port = NULL; | |
1da177e4 LT |
1097 | int i, j; |
1098 | ||
1099 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) | |
1100 | if (umidi->endpoints[i].out) | |
1101 | for (j = 0; j < 0x10; ++j) | |
1102 | if (umidi->endpoints[i].out->ports[j].substream == substream) { | |
1103 | port = &umidi->endpoints[i].out->ports[j]; | |
1104 | break; | |
1105 | } | |
1106 | if (!port) { | |
1107 | snd_BUG(); | |
1108 | return -ENXIO; | |
1109 | } | |
59866da9 | 1110 | |
1da177e4 LT |
1111 | substream->runtime->private_data = port; |
1112 | port->state = STATE_UNKNOWN; | |
f5f16541 | 1113 | return substream_open(substream, 0, 1); |
1da177e4 LT |
1114 | } |
1115 | ||
86e07d34 | 1116 | static int snd_usbmidi_output_close(struct snd_rawmidi_substream *substream) |
1da177e4 | 1117 | { |
f5f16541 | 1118 | return substream_open(substream, 0, 0); |
1da177e4 LT |
1119 | } |
1120 | ||
a509574e AG |
1121 | static void snd_usbmidi_output_trigger(struct snd_rawmidi_substream *substream, |
1122 | int up) | |
1da177e4 | 1123 | { |
a509574e AG |
1124 | struct usbmidi_out_port *port = |
1125 | (struct usbmidi_out_port *)substream->runtime->private_data; | |
1da177e4 LT |
1126 | |
1127 | port->active = up; | |
1128 | if (up) { | |
d82af9f9 | 1129 | if (port->ep->umidi->disconnected) { |
1da177e4 LT |
1130 | /* gobble up remaining bytes to prevent wait in |
1131 | * snd_rawmidi_drain_output */ | |
1132 | while (!snd_rawmidi_transmit_empty(substream)) | |
1133 | snd_rawmidi_transmit_ack(substream, 1); | |
1134 | return; | |
1135 | } | |
1f04128a | 1136 | tasklet_schedule(&port->ep->tasklet); |
1da177e4 LT |
1137 | } |
1138 | } | |
1139 | ||
a65dd997 CL |
1140 | static void snd_usbmidi_output_drain(struct snd_rawmidi_substream *substream) |
1141 | { | |
a509574e | 1142 | struct usbmidi_out_port *port = substream->runtime->private_data; |
a65dd997 CL |
1143 | struct snd_usb_midi_out_endpoint *ep = port->ep; |
1144 | unsigned int drain_urbs; | |
1145 | DEFINE_WAIT(wait); | |
1146 | long timeout = msecs_to_jiffies(50); | |
1147 | ||
29aac005 TI |
1148 | if (ep->umidi->disconnected) |
1149 | return; | |
a65dd997 CL |
1150 | /* |
1151 | * The substream buffer is empty, but some data might still be in the | |
1152 | * currently active URBs, so we have to wait for those to complete. | |
1153 | */ | |
1154 | spin_lock_irq(&ep->buffer_lock); | |
1155 | drain_urbs = ep->active_urbs; | |
1156 | if (drain_urbs) { | |
1157 | ep->drain_urbs |= drain_urbs; | |
1158 | do { | |
1159 | prepare_to_wait(&ep->drain_wait, &wait, | |
1160 | TASK_UNINTERRUPTIBLE); | |
1161 | spin_unlock_irq(&ep->buffer_lock); | |
1162 | timeout = schedule_timeout(timeout); | |
1163 | spin_lock_irq(&ep->buffer_lock); | |
1164 | drain_urbs &= ep->drain_urbs; | |
1165 | } while (drain_urbs && timeout); | |
1166 | finish_wait(&ep->drain_wait, &wait); | |
1167 | } | |
1168 | spin_unlock_irq(&ep->buffer_lock); | |
1169 | } | |
1170 | ||
86e07d34 | 1171 | static int snd_usbmidi_input_open(struct snd_rawmidi_substream *substream) |
1da177e4 | 1172 | { |
f5f16541 | 1173 | return substream_open(substream, 1, 1); |
1da177e4 LT |
1174 | } |
1175 | ||
86e07d34 | 1176 | static int snd_usbmidi_input_close(struct snd_rawmidi_substream *substream) |
1da177e4 | 1177 | { |
f5f16541 | 1178 | return substream_open(substream, 1, 0); |
1da177e4 LT |
1179 | } |
1180 | ||
a509574e AG |
1181 | static void snd_usbmidi_input_trigger(struct snd_rawmidi_substream *substream, |
1182 | int up) | |
1da177e4 | 1183 | { |
a509574e | 1184 | struct snd_usb_midi *umidi = substream->rmidi->private_data; |
1da177e4 LT |
1185 | |
1186 | if (up) | |
1187 | set_bit(substream->number, &umidi->input_triggered); | |
1188 | else | |
1189 | clear_bit(substream->number, &umidi->input_triggered); | |
1190 | } | |
1191 | ||
86e07d34 | 1192 | static struct snd_rawmidi_ops snd_usbmidi_output_ops = { |
1da177e4 LT |
1193 | .open = snd_usbmidi_output_open, |
1194 | .close = snd_usbmidi_output_close, | |
1195 | .trigger = snd_usbmidi_output_trigger, | |
a65dd997 | 1196 | .drain = snd_usbmidi_output_drain, |
1da177e4 LT |
1197 | }; |
1198 | ||
86e07d34 | 1199 | static struct snd_rawmidi_ops snd_usbmidi_input_ops = { |
1da177e4 LT |
1200 | .open = snd_usbmidi_input_open, |
1201 | .close = snd_usbmidi_input_close, | |
1202 | .trigger = snd_usbmidi_input_trigger | |
1203 | }; | |
1204 | ||
ed4affa5 CL |
1205 | static void free_urb_and_buffer(struct snd_usb_midi *umidi, struct urb *urb, |
1206 | unsigned int buffer_length) | |
1207 | { | |
997ea58e DM |
1208 | usb_free_coherent(umidi->dev, buffer_length, |
1209 | urb->transfer_buffer, urb->transfer_dma); | |
ed4affa5 CL |
1210 | usb_free_urb(urb); |
1211 | } | |
1212 | ||
1da177e4 LT |
1213 | /* |
1214 | * Frees an input endpoint. | |
1215 | * May be called when ep hasn't been initialized completely. | |
1216 | */ | |
a509574e | 1217 | static void snd_usbmidi_in_endpoint_delete(struct snd_usb_midi_in_endpoint *ep) |
1da177e4 | 1218 | { |
4773d1fb CL |
1219 | unsigned int i; |
1220 | ||
ed4affa5 CL |
1221 | for (i = 0; i < INPUT_URBS; ++i) |
1222 | if (ep->urbs[i]) | |
1223 | free_urb_and_buffer(ep->umidi, ep->urbs[i], | |
1224 | ep->urbs[i]->transfer_buffer_length); | |
1da177e4 LT |
1225 | kfree(ep); |
1226 | } | |
1227 | ||
1228 | /* | |
1229 | * Creates an input endpoint. | |
1230 | */ | |
a509574e AG |
1231 | static int snd_usbmidi_in_endpoint_create(struct snd_usb_midi *umidi, |
1232 | struct snd_usb_midi_endpoint_info *ep_info, | |
1233 | struct snd_usb_midi_endpoint *rep) | |
1da177e4 | 1234 | { |
a509574e AG |
1235 | struct snd_usb_midi_in_endpoint *ep; |
1236 | void *buffer; | |
1da177e4 LT |
1237 | unsigned int pipe; |
1238 | int length; | |
4773d1fb | 1239 | unsigned int i; |
1da177e4 LT |
1240 | |
1241 | rep->in = NULL; | |
561b220a | 1242 | ep = kzalloc(sizeof(*ep), GFP_KERNEL); |
1da177e4 LT |
1243 | if (!ep) |
1244 | return -ENOMEM; | |
1245 | ep->umidi = umidi; | |
1246 | ||
4773d1fb CL |
1247 | for (i = 0; i < INPUT_URBS; ++i) { |
1248 | ep->urbs[i] = usb_alloc_urb(0, GFP_KERNEL); | |
1249 | if (!ep->urbs[i]) { | |
1250 | snd_usbmidi_in_endpoint_delete(ep); | |
1251 | return -ENOMEM; | |
1252 | } | |
1da177e4 LT |
1253 | } |
1254 | if (ep_info->in_interval) | |
d82af9f9 | 1255 | pipe = usb_rcvintpipe(umidi->dev, ep_info->in_ep); |
1da177e4 | 1256 | else |
d82af9f9 CL |
1257 | pipe = usb_rcvbulkpipe(umidi->dev, ep_info->in_ep); |
1258 | length = usb_maxpacket(umidi->dev, pipe, 0); | |
4773d1fb | 1259 | for (i = 0; i < INPUT_URBS; ++i) { |
997ea58e DM |
1260 | buffer = usb_alloc_coherent(umidi->dev, length, GFP_KERNEL, |
1261 | &ep->urbs[i]->transfer_dma); | |
4773d1fb CL |
1262 | if (!buffer) { |
1263 | snd_usbmidi_in_endpoint_delete(ep); | |
1264 | return -ENOMEM; | |
1265 | } | |
1266 | if (ep_info->in_interval) | |
d82af9f9 | 1267 | usb_fill_int_urb(ep->urbs[i], umidi->dev, |
4773d1fb CL |
1268 | pipe, buffer, length, |
1269 | snd_usbmidi_in_urb_complete, | |
1270 | ep, ep_info->in_interval); | |
1271 | else | |
d82af9f9 | 1272 | usb_fill_bulk_urb(ep->urbs[i], umidi->dev, |
4773d1fb CL |
1273 | pipe, buffer, length, |
1274 | snd_usbmidi_in_urb_complete, ep); | |
1275 | ep->urbs[i]->transfer_flags = URB_NO_TRANSFER_DMA_MAP; | |
1da177e4 | 1276 | } |
1da177e4 LT |
1277 | |
1278 | rep->in = ep; | |
1279 | return 0; | |
1280 | } | |
1281 | ||
1da177e4 LT |
1282 | /* |
1283 | * Frees an output endpoint. | |
1284 | * May be called when ep hasn't been initialized completely. | |
1285 | */ | |
29aac005 | 1286 | static void snd_usbmidi_out_endpoint_clear(struct snd_usb_midi_out_endpoint *ep) |
1da177e4 | 1287 | { |
ed4affa5 CL |
1288 | unsigned int i; |
1289 | ||
1290 | for (i = 0; i < OUTPUT_URBS; ++i) | |
29aac005 | 1291 | if (ep->urbs[i].urb) { |
ed4affa5 CL |
1292 | free_urb_and_buffer(ep->umidi, ep->urbs[i].urb, |
1293 | ep->max_transfer); | |
29aac005 TI |
1294 | ep->urbs[i].urb = NULL; |
1295 | } | |
1296 | } | |
1297 | ||
1298 | static void snd_usbmidi_out_endpoint_delete(struct snd_usb_midi_out_endpoint *ep) | |
1299 | { | |
1300 | snd_usbmidi_out_endpoint_clear(ep); | |
1da177e4 LT |
1301 | kfree(ep); |
1302 | } | |
1303 | ||
1304 | /* | |
1305 | * Creates an output endpoint, and initializes output ports. | |
1306 | */ | |
a509574e AG |
1307 | static int snd_usbmidi_out_endpoint_create(struct snd_usb_midi *umidi, |
1308 | struct snd_usb_midi_endpoint_info *ep_info, | |
1309 | struct snd_usb_midi_endpoint *rep) | |
1da177e4 | 1310 | { |
a509574e | 1311 | struct snd_usb_midi_out_endpoint *ep; |
ed4affa5 | 1312 | unsigned int i; |
1da177e4 | 1313 | unsigned int pipe; |
a509574e | 1314 | void *buffer; |
1da177e4 LT |
1315 | |
1316 | rep->out = NULL; | |
561b220a | 1317 | ep = kzalloc(sizeof(*ep), GFP_KERNEL); |
1da177e4 LT |
1318 | if (!ep) |
1319 | return -ENOMEM; | |
1320 | ep->umidi = umidi; | |
1321 | ||
ed4affa5 CL |
1322 | for (i = 0; i < OUTPUT_URBS; ++i) { |
1323 | ep->urbs[i].urb = usb_alloc_urb(0, GFP_KERNEL); | |
1324 | if (!ep->urbs[i].urb) { | |
1325 | snd_usbmidi_out_endpoint_delete(ep); | |
1326 | return -ENOMEM; | |
1327 | } | |
1328 | ep->urbs[i].ep = ep; | |
1da177e4 | 1329 | } |
a6a712ae | 1330 | if (ep_info->out_interval) |
d82af9f9 | 1331 | pipe = usb_sndintpipe(umidi->dev, ep_info->out_ep); |
a6a712ae | 1332 | else |
d82af9f9 | 1333 | pipe = usb_sndbulkpipe(umidi->dev, ep_info->out_ep); |
f167e1d0 CL |
1334 | switch (umidi->usb_id) { |
1335 | default: | |
d82af9f9 | 1336 | ep->max_transfer = usb_maxpacket(umidi->dev, pipe, 1); |
f167e1d0 CL |
1337 | break; |
1338 | /* | |
1339 | * Various chips declare a packet size larger than 4 bytes, but | |
1340 | * do not actually work with larger packets: | |
1341 | */ | |
1342 | case USB_ID(0x0a92, 0x1020): /* ESI M4U */ | |
1343 | case USB_ID(0x1430, 0x474b): /* RedOctane GH MIDI INTERFACE */ | |
1344 | case USB_ID(0x15ca, 0x0101): /* Textech USB Midi Cable */ | |
1345 | case USB_ID(0x15ca, 0x1806): /* Textech USB Midi Cable */ | |
1346 | case USB_ID(0x1a86, 0x752d): /* QinHeng CH345 "USB2.0-MIDI" */ | |
49c039f0 | 1347 | case USB_ID(0xfc08, 0x0101): /* Unknown vendor Cable */ |
f167e1d0 CL |
1348 | ep->max_transfer = 4; |
1349 | break; | |
921eebdc KW |
1350 | /* |
1351 | * Some devices only work with 9 bytes packet size: | |
1352 | */ | |
1353 | case USB_ID(0x0644, 0x800E): /* Tascam US-122L */ | |
1354 | case USB_ID(0x0644, 0x800F): /* Tascam US-144 */ | |
1355 | ep->max_transfer = 9; | |
1356 | break; | |
f167e1d0 | 1357 | } |
ed4affa5 | 1358 | for (i = 0; i < OUTPUT_URBS; ++i) { |
997ea58e DM |
1359 | buffer = usb_alloc_coherent(umidi->dev, |
1360 | ep->max_transfer, GFP_KERNEL, | |
1361 | &ep->urbs[i].urb->transfer_dma); | |
ed4affa5 CL |
1362 | if (!buffer) { |
1363 | snd_usbmidi_out_endpoint_delete(ep); | |
1364 | return -ENOMEM; | |
1365 | } | |
1366 | if (ep_info->out_interval) | |
d82af9f9 | 1367 | usb_fill_int_urb(ep->urbs[i].urb, umidi->dev, |
ed4affa5 CL |
1368 | pipe, buffer, ep->max_transfer, |
1369 | snd_usbmidi_out_urb_complete, | |
1370 | &ep->urbs[i], ep_info->out_interval); | |
1371 | else | |
d82af9f9 | 1372 | usb_fill_bulk_urb(ep->urbs[i].urb, umidi->dev, |
ed4affa5 CL |
1373 | pipe, buffer, ep->max_transfer, |
1374 | snd_usbmidi_out_urb_complete, | |
1375 | &ep->urbs[i]); | |
1376 | ep->urbs[i].urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP; | |
1da177e4 | 1377 | } |
1da177e4 LT |
1378 | |
1379 | spin_lock_init(&ep->buffer_lock); | |
1380 | tasklet_init(&ep->tasklet, snd_usbmidi_out_tasklet, (unsigned long)ep); | |
a65dd997 | 1381 | init_waitqueue_head(&ep->drain_wait); |
1da177e4 LT |
1382 | |
1383 | for (i = 0; i < 0x10; ++i) | |
1384 | if (ep_info->out_cables & (1 << i)) { | |
1385 | ep->ports[i].ep = ep; | |
1386 | ep->ports[i].cable = i << 4; | |
1387 | } | |
1388 | ||
1389 | if (umidi->usb_protocol_ops->init_out_endpoint) | |
1390 | umidi->usb_protocol_ops->init_out_endpoint(ep); | |
1391 | ||
1392 | rep->out = ep; | |
1393 | return 0; | |
1394 | } | |
1395 | ||
1396 | /* | |
1397 | * Frees everything. | |
1398 | */ | |
a509574e | 1399 | static void snd_usbmidi_free(struct snd_usb_midi *umidi) |
1da177e4 LT |
1400 | { |
1401 | int i; | |
1402 | ||
1403 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { | |
a509574e | 1404 | struct snd_usb_midi_endpoint *ep = &umidi->endpoints[i]; |
1da177e4 LT |
1405 | if (ep->out) |
1406 | snd_usbmidi_out_endpoint_delete(ep->out); | |
1407 | if (ep->in) | |
1408 | snd_usbmidi_in_endpoint_delete(ep->in); | |
1409 | } | |
96f61d9a | 1410 | mutex_destroy(&umidi->mutex); |
1da177e4 LT |
1411 | kfree(umidi); |
1412 | } | |
1413 | ||
1414 | /* | |
1415 | * Unlinks all URBs (must be done before the usb_device is deleted). | |
1416 | */ | |
a509574e | 1417 | void snd_usbmidi_disconnect(struct list_head *p) |
1da177e4 | 1418 | { |
a509574e | 1419 | struct snd_usb_midi *umidi; |
4773d1fb | 1420 | unsigned int i, j; |
1da177e4 | 1421 | |
86e07d34 | 1422 | umidi = list_entry(p, struct snd_usb_midi, list); |
c0792e00 TI |
1423 | /* |
1424 | * an URB's completion handler may start the timer and | |
1425 | * a timer may submit an URB. To reliably break the cycle | |
1426 | * a flag under lock must be used | |
1427 | */ | |
59866da9 | 1428 | down_write(&umidi->disc_rwsem); |
c0792e00 TI |
1429 | spin_lock_irq(&umidi->disc_lock); |
1430 | umidi->disconnected = 1; | |
1431 | spin_unlock_irq(&umidi->disc_lock); | |
59866da9 TI |
1432 | up_write(&umidi->disc_rwsem); |
1433 | ||
1da177e4 | 1434 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { |
a509574e | 1435 | struct snd_usb_midi_endpoint *ep = &umidi->endpoints[i]; |
c8846970 CL |
1436 | if (ep->out) |
1437 | tasklet_kill(&ep->out->tasklet); | |
ed4affa5 CL |
1438 | if (ep->out) { |
1439 | for (j = 0; j < OUTPUT_URBS; ++j) | |
1440 | usb_kill_urb(ep->out->urbs[j].urb); | |
1da177e4 LT |
1441 | if (umidi->usb_protocol_ops->finish_out_endpoint) |
1442 | umidi->usb_protocol_ops->finish_out_endpoint(ep->out); | |
29aac005 TI |
1443 | ep->out->active_urbs = 0; |
1444 | if (ep->out->drain_urbs) { | |
1445 | ep->out->drain_urbs = 0; | |
1446 | wake_up(&ep->out->drain_wait); | |
1447 | } | |
1da177e4 | 1448 | } |
f5e135af | 1449 | if (ep->in) |
4773d1fb CL |
1450 | for (j = 0; j < INPUT_URBS; ++j) |
1451 | usb_kill_urb(ep->in->urbs[j]); | |
7a17daae | 1452 | /* free endpoints here; later call can result in Oops */ |
29aac005 TI |
1453 | if (ep->out) |
1454 | snd_usbmidi_out_endpoint_clear(ep->out); | |
7a17daae TI |
1455 | if (ep->in) { |
1456 | snd_usbmidi_in_endpoint_delete(ep->in); | |
1457 | ep->in = NULL; | |
1458 | } | |
1da177e4 | 1459 | } |
c0792e00 | 1460 | del_timer_sync(&umidi->error_timer); |
1da177e4 | 1461 | } |
ed136aca | 1462 | EXPORT_SYMBOL(snd_usbmidi_disconnect); |
1da177e4 | 1463 | |
86e07d34 | 1464 | static void snd_usbmidi_rawmidi_free(struct snd_rawmidi *rmidi) |
1da177e4 | 1465 | { |
a509574e | 1466 | struct snd_usb_midi *umidi = rmidi->private_data; |
1da177e4 LT |
1467 | snd_usbmidi_free(umidi); |
1468 | } | |
1469 | ||
a509574e AG |
1470 | static struct snd_rawmidi_substream *snd_usbmidi_find_substream(struct snd_usb_midi *umidi, |
1471 | int stream, | |
1472 | int number) | |
1da177e4 | 1473 | { |
88766f04 | 1474 | struct snd_rawmidi_substream *substream; |
1da177e4 | 1475 | |
a509574e AG |
1476 | list_for_each_entry(substream, &umidi->rmidi->streams[stream].substreams, |
1477 | list) { | |
1da177e4 LT |
1478 | if (substream->number == number) |
1479 | return substream; | |
1480 | } | |
1481 | return NULL; | |
1482 | } | |
1483 | ||
1484 | /* | |
1485 | * This list specifies names for ports that do not fit into the standard | |
1486 | * "(product) MIDI (n)" schema because they aren't external MIDI ports, | |
1487 | * such as internal control or synthesizer ports. | |
1488 | */ | |
a7b928ac | 1489 | static struct port_info { |
27d10f56 | 1490 | u32 id; |
a7b928ac CL |
1491 | short int port; |
1492 | short int voices; | |
1493 | const char *name; | |
1494 | unsigned int seq_flags; | |
1495 | } snd_usbmidi_port_info[] = { | |
1496 | #define PORT_INFO(vendor, product, num, name_, voices_, flags) \ | |
1497 | { .id = USB_ID(vendor, product), \ | |
1498 | .port = num, .voices = voices_, \ | |
1499 | .name = name_, .seq_flags = flags } | |
1500 | #define EXTERNAL_PORT(vendor, product, num, name) \ | |
1501 | PORT_INFO(vendor, product, num, name, 0, \ | |
1502 | SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | \ | |
1503 | SNDRV_SEQ_PORT_TYPE_HARDWARE | \ | |
1504 | SNDRV_SEQ_PORT_TYPE_PORT) | |
1505 | #define CONTROL_PORT(vendor, product, num, name) \ | |
1506 | PORT_INFO(vendor, product, num, name, 0, \ | |
1507 | SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | \ | |
1508 | SNDRV_SEQ_PORT_TYPE_HARDWARE) | |
1509 | #define ROLAND_SYNTH_PORT(vendor, product, num, name, voices) \ | |
1510 | PORT_INFO(vendor, product, num, name, voices, \ | |
1511 | SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | \ | |
1512 | SNDRV_SEQ_PORT_TYPE_MIDI_GM | \ | |
1513 | SNDRV_SEQ_PORT_TYPE_MIDI_GM2 | \ | |
1514 | SNDRV_SEQ_PORT_TYPE_MIDI_GS | \ | |
1515 | SNDRV_SEQ_PORT_TYPE_MIDI_XG | \ | |
1516 | SNDRV_SEQ_PORT_TYPE_HARDWARE | \ | |
1517 | SNDRV_SEQ_PORT_TYPE_SYNTHESIZER) | |
1518 | #define SOUNDCANVAS_PORT(vendor, product, num, name, voices) \ | |
1519 | PORT_INFO(vendor, product, num, name, voices, \ | |
1520 | SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | \ | |
1521 | SNDRV_SEQ_PORT_TYPE_MIDI_GM | \ | |
1522 | SNDRV_SEQ_PORT_TYPE_MIDI_GM2 | \ | |
1523 | SNDRV_SEQ_PORT_TYPE_MIDI_GS | \ | |
1524 | SNDRV_SEQ_PORT_TYPE_MIDI_XG | \ | |
1525 | SNDRV_SEQ_PORT_TYPE_MIDI_MT32 | \ | |
1526 | SNDRV_SEQ_PORT_TYPE_HARDWARE | \ | |
1527 | SNDRV_SEQ_PORT_TYPE_SYNTHESIZER) | |
1da177e4 | 1528 | /* Roland UA-100 */ |
a7b928ac | 1529 | CONTROL_PORT(0x0582, 0x0000, 2, "%s Control"), |
1da177e4 | 1530 | /* Roland SC-8850 */ |
a7b928ac CL |
1531 | SOUNDCANVAS_PORT(0x0582, 0x0003, 0, "%s Part A", 128), |
1532 | SOUNDCANVAS_PORT(0x0582, 0x0003, 1, "%s Part B", 128), | |
1533 | SOUNDCANVAS_PORT(0x0582, 0x0003, 2, "%s Part C", 128), | |
1534 | SOUNDCANVAS_PORT(0x0582, 0x0003, 3, "%s Part D", 128), | |
1535 | EXTERNAL_PORT(0x0582, 0x0003, 4, "%s MIDI 1"), | |
1536 | EXTERNAL_PORT(0x0582, 0x0003, 5, "%s MIDI 2"), | |
1da177e4 | 1537 | /* Roland U-8 */ |
a7b928ac CL |
1538 | EXTERNAL_PORT(0x0582, 0x0004, 0, "%s MIDI"), |
1539 | CONTROL_PORT(0x0582, 0x0004, 1, "%s Control"), | |
1da177e4 | 1540 | /* Roland SC-8820 */ |
a7b928ac CL |
1541 | SOUNDCANVAS_PORT(0x0582, 0x0007, 0, "%s Part A", 64), |
1542 | SOUNDCANVAS_PORT(0x0582, 0x0007, 1, "%s Part B", 64), | |
1543 | EXTERNAL_PORT(0x0582, 0x0007, 2, "%s MIDI"), | |
1da177e4 | 1544 | /* Roland SK-500 */ |
a7b928ac CL |
1545 | SOUNDCANVAS_PORT(0x0582, 0x000b, 0, "%s Part A", 64), |
1546 | SOUNDCANVAS_PORT(0x0582, 0x000b, 1, "%s Part B", 64), | |
1547 | EXTERNAL_PORT(0x0582, 0x000b, 2, "%s MIDI"), | |
1da177e4 | 1548 | /* Roland SC-D70 */ |
a7b928ac CL |
1549 | SOUNDCANVAS_PORT(0x0582, 0x000c, 0, "%s Part A", 64), |
1550 | SOUNDCANVAS_PORT(0x0582, 0x000c, 1, "%s Part B", 64), | |
1551 | EXTERNAL_PORT(0x0582, 0x000c, 2, "%s MIDI"), | |
1da177e4 | 1552 | /* Edirol UM-880 */ |
a7b928ac | 1553 | CONTROL_PORT(0x0582, 0x0014, 8, "%s Control"), |
1da177e4 | 1554 | /* Edirol SD-90 */ |
a7b928ac CL |
1555 | ROLAND_SYNTH_PORT(0x0582, 0x0016, 0, "%s Part A", 128), |
1556 | ROLAND_SYNTH_PORT(0x0582, 0x0016, 1, "%s Part B", 128), | |
1557 | EXTERNAL_PORT(0x0582, 0x0016, 2, "%s MIDI 1"), | |
1558 | EXTERNAL_PORT(0x0582, 0x0016, 3, "%s MIDI 2"), | |
1da177e4 | 1559 | /* Edirol UM-550 */ |
a7b928ac | 1560 | CONTROL_PORT(0x0582, 0x0023, 5, "%s Control"), |
1da177e4 | 1561 | /* Edirol SD-20 */ |
a7b928ac CL |
1562 | ROLAND_SYNTH_PORT(0x0582, 0x0027, 0, "%s Part A", 64), |
1563 | ROLAND_SYNTH_PORT(0x0582, 0x0027, 1, "%s Part B", 64), | |
1564 | EXTERNAL_PORT(0x0582, 0x0027, 2, "%s MIDI"), | |
1da177e4 | 1565 | /* Edirol SD-80 */ |
a7b928ac CL |
1566 | ROLAND_SYNTH_PORT(0x0582, 0x0029, 0, "%s Part A", 128), |
1567 | ROLAND_SYNTH_PORT(0x0582, 0x0029, 1, "%s Part B", 128), | |
1568 | EXTERNAL_PORT(0x0582, 0x0029, 2, "%s MIDI 1"), | |
1569 | EXTERNAL_PORT(0x0582, 0x0029, 3, "%s MIDI 2"), | |
1da177e4 | 1570 | /* Edirol UA-700 */ |
a7b928ac CL |
1571 | EXTERNAL_PORT(0x0582, 0x002b, 0, "%s MIDI"), |
1572 | CONTROL_PORT(0x0582, 0x002b, 1, "%s Control"), | |
1da177e4 | 1573 | /* Roland VariOS */ |
a7b928ac CL |
1574 | EXTERNAL_PORT(0x0582, 0x002f, 0, "%s MIDI"), |
1575 | EXTERNAL_PORT(0x0582, 0x002f, 1, "%s External MIDI"), | |
1576 | EXTERNAL_PORT(0x0582, 0x002f, 2, "%s Sync"), | |
1da177e4 | 1577 | /* Edirol PCR */ |
a7b928ac CL |
1578 | EXTERNAL_PORT(0x0582, 0x0033, 0, "%s MIDI"), |
1579 | EXTERNAL_PORT(0x0582, 0x0033, 1, "%s 1"), | |
1580 | EXTERNAL_PORT(0x0582, 0x0033, 2, "%s 2"), | |
1da177e4 | 1581 | /* BOSS GS-10 */ |
a7b928ac CL |
1582 | EXTERNAL_PORT(0x0582, 0x003b, 0, "%s MIDI"), |
1583 | CONTROL_PORT(0x0582, 0x003b, 1, "%s Control"), | |
1da177e4 | 1584 | /* Edirol UA-1000 */ |
a7b928ac CL |
1585 | EXTERNAL_PORT(0x0582, 0x0044, 0, "%s MIDI"), |
1586 | CONTROL_PORT(0x0582, 0x0044, 1, "%s Control"), | |
1da177e4 | 1587 | /* Edirol UR-80 */ |
a7b928ac CL |
1588 | EXTERNAL_PORT(0x0582, 0x0048, 0, "%s MIDI"), |
1589 | EXTERNAL_PORT(0x0582, 0x0048, 1, "%s 1"), | |
1590 | EXTERNAL_PORT(0x0582, 0x0048, 2, "%s 2"), | |
1da177e4 | 1591 | /* Edirol PCR-A */ |
a7b928ac CL |
1592 | EXTERNAL_PORT(0x0582, 0x004d, 0, "%s MIDI"), |
1593 | EXTERNAL_PORT(0x0582, 0x004d, 1, "%s 1"), | |
1594 | EXTERNAL_PORT(0x0582, 0x004d, 2, "%s 2"), | |
a968782e CL |
1595 | /* BOSS GT-PRO */ |
1596 | CONTROL_PORT(0x0582, 0x0089, 0, "%s Control"), | |
7c79b768 | 1597 | /* Edirol UM-3EX */ |
a7b928ac | 1598 | CONTROL_PORT(0x0582, 0x009a, 3, "%s Control"), |
a968782e CL |
1599 | /* Roland VG-99 */ |
1600 | CONTROL_PORT(0x0582, 0x00b2, 0, "%s Control"), | |
1601 | EXTERNAL_PORT(0x0582, 0x00b2, 1, "%s MIDI"), | |
1602 | /* Cakewalk Sonar V-Studio 100 */ | |
1603 | EXTERNAL_PORT(0x0582, 0x00eb, 0, "%s MIDI"), | |
1604 | CONTROL_PORT(0x0582, 0x00eb, 1, "%s Control"), | |
1605 | /* Roland VB-99 */ | |
1606 | CONTROL_PORT(0x0582, 0x0102, 0, "%s Control"), | |
1607 | EXTERNAL_PORT(0x0582, 0x0102, 1, "%s MIDI"), | |
1608 | /* Roland A-PRO */ | |
1609 | EXTERNAL_PORT(0x0582, 0x010f, 0, "%s MIDI"), | |
1610 | CONTROL_PORT(0x0582, 0x010f, 1, "%s 1"), | |
1611 | CONTROL_PORT(0x0582, 0x010f, 2, "%s 2"), | |
1612 | /* Roland SD-50 */ | |
1613 | ROLAND_SYNTH_PORT(0x0582, 0x0114, 0, "%s Synth", 128), | |
1614 | EXTERNAL_PORT(0x0582, 0x0114, 1, "%s MIDI"), | |
1615 | CONTROL_PORT(0x0582, 0x0114, 2, "%s Control"), | |
1616 | /* Roland OCTA-CAPTURE */ | |
1617 | EXTERNAL_PORT(0x0582, 0x0120, 0, "%s MIDI"), | |
1618 | CONTROL_PORT(0x0582, 0x0120, 1, "%s Control"), | |
1619 | EXTERNAL_PORT(0x0582, 0x0121, 0, "%s MIDI"), | |
1620 | CONTROL_PORT(0x0582, 0x0121, 1, "%s Control"), | |
1621 | /* Roland SPD-SX */ | |
1622 | CONTROL_PORT(0x0582, 0x0145, 0, "%s Control"), | |
1623 | EXTERNAL_PORT(0x0582, 0x0145, 1, "%s MIDI"), | |
1624 | /* Roland A-Series */ | |
1625 | CONTROL_PORT(0x0582, 0x0156, 0, "%s Keyboard"), | |
1626 | EXTERNAL_PORT(0x0582, 0x0156, 1, "%s MIDI"), | |
1627 | /* Roland INTEGRA-7 */ | |
1628 | ROLAND_SYNTH_PORT(0x0582, 0x015b, 0, "%s Synth", 128), | |
1629 | CONTROL_PORT(0x0582, 0x015b, 1, "%s Control"), | |
1da177e4 | 1630 | /* M-Audio MidiSport 8x8 */ |
a7b928ac CL |
1631 | CONTROL_PORT(0x0763, 0x1031, 8, "%s Control"), |
1632 | CONTROL_PORT(0x0763, 0x1033, 8, "%s Control"), | |
1da177e4 | 1633 | /* MOTU Fastlane */ |
a7b928ac CL |
1634 | EXTERNAL_PORT(0x07fd, 0x0001, 0, "%s MIDI A"), |
1635 | EXTERNAL_PORT(0x07fd, 0x0001, 1, "%s MIDI B"), | |
1da177e4 | 1636 | /* Emagic Unitor8/AMT8/MT4 */ |
a7b928ac CL |
1637 | EXTERNAL_PORT(0x086a, 0x0001, 8, "%s Broadcast"), |
1638 | EXTERNAL_PORT(0x086a, 0x0002, 8, "%s Broadcast"), | |
1639 | EXTERNAL_PORT(0x086a, 0x0003, 4, "%s Broadcast"), | |
4434ade8 KF |
1640 | /* Akai MPD16 */ |
1641 | CONTROL_PORT(0x09e8, 0x0062, 0, "%s Control"), | |
1642 | PORT_INFO(0x09e8, 0x0062, 1, "%s MIDI", 0, | |
1643 | SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | | |
1644 | SNDRV_SEQ_PORT_TYPE_HARDWARE), | |
d39e82db SA |
1645 | /* Access Music Virus TI */ |
1646 | EXTERNAL_PORT(0x133e, 0x0815, 0, "%s MIDI"), | |
1647 | PORT_INFO(0x133e, 0x0815, 1, "%s Synth", 0, | |
1648 | SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | | |
1649 | SNDRV_SEQ_PORT_TYPE_HARDWARE | | |
1650 | SNDRV_SEQ_PORT_TYPE_SYNTHESIZER), | |
1da177e4 LT |
1651 | }; |
1652 | ||
a509574e | 1653 | static struct port_info *find_port_info(struct snd_usb_midi *umidi, int number) |
a7b928ac CL |
1654 | { |
1655 | int i; | |
1656 | ||
1657 | for (i = 0; i < ARRAY_SIZE(snd_usbmidi_port_info); ++i) { | |
d82af9f9 | 1658 | if (snd_usbmidi_port_info[i].id == umidi->usb_id && |
a7b928ac CL |
1659 | snd_usbmidi_port_info[i].port == number) |
1660 | return &snd_usbmidi_port_info[i]; | |
1661 | } | |
1662 | return NULL; | |
1663 | } | |
1664 | ||
1665 | static void snd_usbmidi_get_port_info(struct snd_rawmidi *rmidi, int number, | |
1666 | struct snd_seq_port_info *seq_port_info) | |
1667 | { | |
1668 | struct snd_usb_midi *umidi = rmidi->private_data; | |
1669 | struct port_info *port_info; | |
1670 | ||
1671 | /* TODO: read port flags from descriptors */ | |
1672 | port_info = find_port_info(umidi, number); | |
1673 | if (port_info) { | |
1674 | seq_port_info->type = port_info->seq_flags; | |
1675 | seq_port_info->midi_voices = port_info->voices; | |
1676 | } | |
1677 | } | |
1678 | ||
a509574e | 1679 | static void snd_usbmidi_init_substream(struct snd_usb_midi *umidi, |
1da177e4 | 1680 | int stream, int number, |
a509574e | 1681 | struct snd_rawmidi_substream **rsubstream) |
1da177e4 | 1682 | { |
a7b928ac | 1683 | struct port_info *port_info; |
1da177e4 LT |
1684 | const char *name_format; |
1685 | ||
a509574e AG |
1686 | struct snd_rawmidi_substream *substream = |
1687 | snd_usbmidi_find_substream(umidi, stream, number); | |
1da177e4 | 1688 | if (!substream) { |
a509574e AG |
1689 | dev_err(&umidi->dev->dev, "substream %d:%d not found\n", stream, |
1690 | number); | |
1da177e4 LT |
1691 | return; |
1692 | } | |
1693 | ||
1694 | /* TODO: read port name from jack descriptor */ | |
a7b928ac CL |
1695 | port_info = find_port_info(umidi, number); |
1696 | name_format = port_info ? port_info->name : "%s MIDI %d"; | |
1da177e4 | 1697 | snprintf(substream->name, sizeof(substream->name), |
d82af9f9 | 1698 | name_format, umidi->card->shortname, number + 1); |
1da177e4 LT |
1699 | |
1700 | *rsubstream = substream; | |
1701 | } | |
1702 | ||
1703 | /* | |
1704 | * Creates the endpoints and their ports. | |
1705 | */ | |
a509574e AG |
1706 | static int snd_usbmidi_create_endpoints(struct snd_usb_midi *umidi, |
1707 | struct snd_usb_midi_endpoint_info *endpoints) | |
1da177e4 LT |
1708 | { |
1709 | int i, j, err; | |
1710 | int out_ports = 0, in_ports = 0; | |
1711 | ||
1712 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { | |
1713 | if (endpoints[i].out_cables) { | |
a509574e AG |
1714 | err = snd_usbmidi_out_endpoint_create(umidi, |
1715 | &endpoints[i], | |
1da177e4 LT |
1716 | &umidi->endpoints[i]); |
1717 | if (err < 0) | |
1718 | return err; | |
1719 | } | |
1720 | if (endpoints[i].in_cables) { | |
a509574e AG |
1721 | err = snd_usbmidi_in_endpoint_create(umidi, |
1722 | &endpoints[i], | |
1da177e4 LT |
1723 | &umidi->endpoints[i]); |
1724 | if (err < 0) | |
1725 | return err; | |
1726 | } | |
1727 | ||
1728 | for (j = 0; j < 0x10; ++j) { | |
1729 | if (endpoints[i].out_cables & (1 << j)) { | |
a509574e AG |
1730 | snd_usbmidi_init_substream(umidi, |
1731 | SNDRV_RAWMIDI_STREAM_OUTPUT, | |
1732 | out_ports, | |
1da177e4 LT |
1733 | &umidi->endpoints[i].out->ports[j].substream); |
1734 | ++out_ports; | |
1735 | } | |
1736 | if (endpoints[i].in_cables & (1 << j)) { | |
a509574e AG |
1737 | snd_usbmidi_init_substream(umidi, |
1738 | SNDRV_RAWMIDI_STREAM_INPUT, | |
1739 | in_ports, | |
1da177e4 LT |
1740 | &umidi->endpoints[i].in->ports[j].substream); |
1741 | ++in_ports; | |
1742 | } | |
1743 | } | |
1744 | } | |
0ba41d91 | 1745 | dev_dbg(&umidi->dev->dev, "created %d output and %d input ports\n", |
1da177e4 LT |
1746 | out_ports, in_ports); |
1747 | return 0; | |
1748 | } | |
1749 | ||
1750 | /* | |
1751 | * Returns MIDIStreaming device capabilities. | |
1752 | */ | |
a509574e AG |
1753 | static int snd_usbmidi_get_ms_info(struct snd_usb_midi *umidi, |
1754 | struct snd_usb_midi_endpoint_info *endpoints) | |
1da177e4 | 1755 | { |
a509574e | 1756 | struct usb_interface *intf; |
1da177e4 | 1757 | struct usb_host_interface *hostif; |
a509574e AG |
1758 | struct usb_interface_descriptor *intfd; |
1759 | struct usb_ms_header_descriptor *ms_header; | |
1da177e4 | 1760 | struct usb_host_endpoint *hostep; |
a509574e AG |
1761 | struct usb_endpoint_descriptor *ep; |
1762 | struct usb_ms_endpoint_descriptor *ms_ep; | |
1da177e4 LT |
1763 | int i, epidx; |
1764 | ||
1765 | intf = umidi->iface; | |
1766 | if (!intf) | |
1767 | return -ENXIO; | |
1768 | hostif = &intf->altsetting[0]; | |
1769 | intfd = get_iface_desc(hostif); | |
a509574e | 1770 | ms_header = (struct usb_ms_header_descriptor *)hostif->extra; |
1da177e4 LT |
1771 | if (hostif->extralen >= 7 && |
1772 | ms_header->bLength >= 7 && | |
1773 | ms_header->bDescriptorType == USB_DT_CS_INTERFACE && | |
de48c7bc | 1774 | ms_header->bDescriptorSubtype == UAC_HEADER) |
0ba41d91 | 1775 | dev_dbg(&umidi->dev->dev, "MIDIStreaming version %02x.%02x\n", |
1da177e4 LT |
1776 | ms_header->bcdMSC[1], ms_header->bcdMSC[0]); |
1777 | else | |
0ba41d91 TI |
1778 | dev_warn(&umidi->dev->dev, |
1779 | "MIDIStreaming interface descriptor not found\n"); | |
1da177e4 LT |
1780 | |
1781 | epidx = 0; | |
1782 | for (i = 0; i < intfd->bNumEndpoints; ++i) { | |
1783 | hostep = &hostif->endpoint[i]; | |
1784 | ep = get_ep_desc(hostep); | |
913ae5a2 | 1785 | if (!usb_endpoint_xfer_bulk(ep) && !usb_endpoint_xfer_int(ep)) |
1da177e4 | 1786 | continue; |
a509574e | 1787 | ms_ep = (struct usb_ms_endpoint_descriptor *)hostep->extra; |
1da177e4 LT |
1788 | if (hostep->extralen < 4 || |
1789 | ms_ep->bLength < 4 || | |
1790 | ms_ep->bDescriptorType != USB_DT_CS_ENDPOINT || | |
de48c7bc | 1791 | ms_ep->bDescriptorSubtype != UAC_MS_GENERAL) |
1da177e4 | 1792 | continue; |
42a6e66f | 1793 | if (usb_endpoint_dir_out(ep)) { |
1da177e4 LT |
1794 | if (endpoints[epidx].out_ep) { |
1795 | if (++epidx >= MIDI_MAX_ENDPOINTS) { | |
0ba41d91 TI |
1796 | dev_warn(&umidi->dev->dev, |
1797 | "too many endpoints\n"); | |
1da177e4 LT |
1798 | break; |
1799 | } | |
1800 | } | |
42a6e66f JL |
1801 | endpoints[epidx].out_ep = usb_endpoint_num(ep); |
1802 | if (usb_endpoint_xfer_int(ep)) | |
1da177e4 | 1803 | endpoints[epidx].out_interval = ep->bInterval; |
d82af9f9 | 1804 | else if (snd_usb_get_speed(umidi->dev) == USB_SPEED_LOW) |
56162aab CL |
1805 | /* |
1806 | * Low speed bulk transfers don't exist, so | |
1807 | * force interrupt transfers for devices like | |
1808 | * ESI MIDI Mate that try to use them anyway. | |
1809 | */ | |
1810 | endpoints[epidx].out_interval = 1; | |
a509574e AG |
1811 | endpoints[epidx].out_cables = |
1812 | (1 << ms_ep->bNumEmbMIDIJack) - 1; | |
0ba41d91 | 1813 | dev_dbg(&umidi->dev->dev, "EP %02X: %d jack(s)\n", |
a509574e | 1814 | ep->bEndpointAddress, ms_ep->bNumEmbMIDIJack); |
1da177e4 LT |
1815 | } else { |
1816 | if (endpoints[epidx].in_ep) { | |
1817 | if (++epidx >= MIDI_MAX_ENDPOINTS) { | |
0ba41d91 TI |
1818 | dev_warn(&umidi->dev->dev, |
1819 | "too many endpoints\n"); | |
1da177e4 LT |
1820 | break; |
1821 | } | |
1822 | } | |
42a6e66f JL |
1823 | endpoints[epidx].in_ep = usb_endpoint_num(ep); |
1824 | if (usb_endpoint_xfer_int(ep)) | |
1da177e4 | 1825 | endpoints[epidx].in_interval = ep->bInterval; |
d82af9f9 | 1826 | else if (snd_usb_get_speed(umidi->dev) == USB_SPEED_LOW) |
56162aab | 1827 | endpoints[epidx].in_interval = 1; |
a509574e AG |
1828 | endpoints[epidx].in_cables = |
1829 | (1 << ms_ep->bNumEmbMIDIJack) - 1; | |
0ba41d91 | 1830 | dev_dbg(&umidi->dev->dev, "EP %02X: %d jack(s)\n", |
a509574e | 1831 | ep->bEndpointAddress, ms_ep->bNumEmbMIDIJack); |
1da177e4 LT |
1832 | } |
1833 | } | |
1834 | return 0; | |
1835 | } | |
1836 | ||
96f61d9a CL |
1837 | static int roland_load_info(struct snd_kcontrol *kcontrol, |
1838 | struct snd_ctl_elem_info *info) | |
1839 | { | |
1840 | static const char *const names[] = { "High Load", "Light Load" }; | |
1841 | ||
2a1803a7 | 1842 | return snd_ctl_enum_info(info, 1, 2, names); |
96f61d9a CL |
1843 | } |
1844 | ||
1845 | static int roland_load_get(struct snd_kcontrol *kcontrol, | |
1846 | struct snd_ctl_elem_value *value) | |
1847 | { | |
1848 | value->value.enumerated.item[0] = kcontrol->private_value; | |
1849 | return 0; | |
1850 | } | |
1851 | ||
1852 | static int roland_load_put(struct snd_kcontrol *kcontrol, | |
1853 | struct snd_ctl_elem_value *value) | |
1854 | { | |
a509574e | 1855 | struct snd_usb_midi *umidi = kcontrol->private_data; |
96f61d9a CL |
1856 | int changed; |
1857 | ||
1858 | if (value->value.enumerated.item[0] > 1) | |
1859 | return -EINVAL; | |
1860 | mutex_lock(&umidi->mutex); | |
1861 | changed = value->value.enumerated.item[0] != kcontrol->private_value; | |
1862 | if (changed) | |
1863 | kcontrol->private_value = value->value.enumerated.item[0]; | |
1864 | mutex_unlock(&umidi->mutex); | |
1865 | return changed; | |
1866 | } | |
1867 | ||
1868 | static struct snd_kcontrol_new roland_load_ctl = { | |
1869 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
1870 | .name = "MIDI Input Mode", | |
1871 | .info = roland_load_info, | |
1872 | .get = roland_load_get, | |
1873 | .put = roland_load_put, | |
1874 | .private_value = 1, | |
1875 | }; | |
1876 | ||
1da177e4 LT |
1877 | /* |
1878 | * On Roland devices, use the second alternate setting to be able to use | |
1879 | * the interrupt input endpoint. | |
1880 | */ | |
a509574e | 1881 | static void snd_usbmidi_switch_roland_altsetting(struct snd_usb_midi *umidi) |
1da177e4 | 1882 | { |
a509574e | 1883 | struct usb_interface *intf; |
1da177e4 | 1884 | struct usb_host_interface *hostif; |
a509574e | 1885 | struct usb_interface_descriptor *intfd; |
1da177e4 LT |
1886 | |
1887 | intf = umidi->iface; | |
1888 | if (!intf || intf->num_altsetting != 2) | |
1889 | return; | |
1890 | ||
1891 | hostif = &intf->altsetting[1]; | |
1892 | intfd = get_iface_desc(hostif); | |
1893 | if (intfd->bNumEndpoints != 2 || | |
a509574e AG |
1894 | (get_endpoint(hostif, 0)->bmAttributes & |
1895 | USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_BULK || | |
1896 | (get_endpoint(hostif, 1)->bmAttributes & | |
1897 | USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_INT) | |
1da177e4 LT |
1898 | return; |
1899 | ||
0ba41d91 | 1900 | dev_dbg(&umidi->dev->dev, "switching to altsetting %d with int ep\n", |
1da177e4 | 1901 | intfd->bAlternateSetting); |
d82af9f9 | 1902 | usb_set_interface(umidi->dev, intfd->bInterfaceNumber, |
1da177e4 | 1903 | intfd->bAlternateSetting); |
96f61d9a CL |
1904 | |
1905 | umidi->roland_load_ctl = snd_ctl_new1(&roland_load_ctl, umidi); | |
d82af9f9 | 1906 | if (snd_ctl_add(umidi->card, umidi->roland_load_ctl) < 0) |
96f61d9a | 1907 | umidi->roland_load_ctl = NULL; |
1da177e4 LT |
1908 | } |
1909 | ||
1910 | /* | |
1911 | * Try to find any usable endpoints in the interface. | |
1912 | */ | |
a509574e AG |
1913 | static int snd_usbmidi_detect_endpoints(struct snd_usb_midi *umidi, |
1914 | struct snd_usb_midi_endpoint_info *endpoint, | |
1da177e4 LT |
1915 | int max_endpoints) |
1916 | { | |
a509574e | 1917 | struct usb_interface *intf; |
1da177e4 | 1918 | struct usb_host_interface *hostif; |
a509574e AG |
1919 | struct usb_interface_descriptor *intfd; |
1920 | struct usb_endpoint_descriptor *epd; | |
1da177e4 LT |
1921 | int i, out_eps = 0, in_eps = 0; |
1922 | ||
d82af9f9 | 1923 | if (USB_ID_VENDOR(umidi->usb_id) == 0x0582) |
1da177e4 LT |
1924 | snd_usbmidi_switch_roland_altsetting(umidi); |
1925 | ||
c1ab5d59 | 1926 | if (endpoint[0].out_ep || endpoint[0].in_ep) |
21af7d8c | 1927 | return 0; |
c1ab5d59 | 1928 | |
1da177e4 LT |
1929 | intf = umidi->iface; |
1930 | if (!intf || intf->num_altsetting < 1) | |
1931 | return -ENOENT; | |
1932 | hostif = intf->cur_altsetting; | |
1933 | intfd = get_iface_desc(hostif); | |
1934 | ||
1935 | for (i = 0; i < intfd->bNumEndpoints; ++i) { | |
1936 | epd = get_endpoint(hostif, i); | |
913ae5a2 JL |
1937 | if (!usb_endpoint_xfer_bulk(epd) && |
1938 | !usb_endpoint_xfer_int(epd)) | |
1da177e4 LT |
1939 | continue; |
1940 | if (out_eps < max_endpoints && | |
42a6e66f JL |
1941 | usb_endpoint_dir_out(epd)) { |
1942 | endpoint[out_eps].out_ep = usb_endpoint_num(epd); | |
1943 | if (usb_endpoint_xfer_int(epd)) | |
1da177e4 LT |
1944 | endpoint[out_eps].out_interval = epd->bInterval; |
1945 | ++out_eps; | |
1946 | } | |
1947 | if (in_eps < max_endpoints && | |
42a6e66f JL |
1948 | usb_endpoint_dir_in(epd)) { |
1949 | endpoint[in_eps].in_ep = usb_endpoint_num(epd); | |
1950 | if (usb_endpoint_xfer_int(epd)) | |
1da177e4 LT |
1951 | endpoint[in_eps].in_interval = epd->bInterval; |
1952 | ++in_eps; | |
1953 | } | |
1954 | } | |
1955 | return (out_eps || in_eps) ? 0 : -ENOENT; | |
1956 | } | |
1957 | ||
1958 | /* | |
1959 | * Detects the endpoints for one-port-per-endpoint protocols. | |
1960 | */ | |
a509574e AG |
1961 | static int snd_usbmidi_detect_per_port_endpoints(struct snd_usb_midi *umidi, |
1962 | struct snd_usb_midi_endpoint_info *endpoints) | |
1da177e4 LT |
1963 | { |
1964 | int err, i; | |
21af7d8c | 1965 | |
1da177e4 LT |
1966 | err = snd_usbmidi_detect_endpoints(umidi, endpoints, MIDI_MAX_ENDPOINTS); |
1967 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { | |
1968 | if (endpoints[i].out_ep) | |
1969 | endpoints[i].out_cables = 0x0001; | |
1970 | if (endpoints[i].in_ep) | |
1971 | endpoints[i].in_cables = 0x0001; | |
1972 | } | |
1973 | return err; | |
1974 | } | |
1975 | ||
1976 | /* | |
1977 | * Detects the endpoints and ports of Yamaha devices. | |
1978 | */ | |
a509574e AG |
1979 | static int snd_usbmidi_detect_yamaha(struct snd_usb_midi *umidi, |
1980 | struct snd_usb_midi_endpoint_info *endpoint) | |
1da177e4 | 1981 | { |
a509574e | 1982 | struct usb_interface *intf; |
1da177e4 | 1983 | struct usb_host_interface *hostif; |
a509574e AG |
1984 | struct usb_interface_descriptor *intfd; |
1985 | uint8_t *cs_desc; | |
1da177e4 LT |
1986 | |
1987 | intf = umidi->iface; | |
1988 | if (!intf) | |
1989 | return -ENOENT; | |
1990 | hostif = intf->altsetting; | |
1991 | intfd = get_iface_desc(hostif); | |
1992 | if (intfd->bNumEndpoints < 1) | |
1993 | return -ENOENT; | |
1994 | ||
1995 | /* | |
1996 | * For each port there is one MIDI_IN/OUT_JACK descriptor, not | |
1997 | * necessarily with any useful contents. So simply count 'em. | |
1998 | */ | |
1999 | for (cs_desc = hostif->extra; | |
2000 | cs_desc < hostif->extra + hostif->extralen && cs_desc[0] >= 2; | |
2001 | cs_desc += cs_desc[0]) { | |
c4a87ef4 | 2002 | if (cs_desc[1] == USB_DT_CS_INTERFACE) { |
de48c7bc | 2003 | if (cs_desc[2] == UAC_MIDI_IN_JACK) |
a509574e AG |
2004 | endpoint->in_cables = |
2005 | (endpoint->in_cables << 1) | 1; | |
de48c7bc | 2006 | else if (cs_desc[2] == UAC_MIDI_OUT_JACK) |
a509574e AG |
2007 | endpoint->out_cables = |
2008 | (endpoint->out_cables << 1) | 1; | |
1da177e4 LT |
2009 | } |
2010 | } | |
2011 | if (!endpoint->in_cables && !endpoint->out_cables) | |
2012 | return -ENOENT; | |
2013 | ||
2014 | return snd_usbmidi_detect_endpoints(umidi, endpoint, 1); | |
2015 | } | |
2016 | ||
aafe77cc CL |
2017 | /* |
2018 | * Detects the endpoints and ports of Roland devices. | |
2019 | */ | |
a509574e AG |
2020 | static int snd_usbmidi_detect_roland(struct snd_usb_midi *umidi, |
2021 | struct snd_usb_midi_endpoint_info *endpoint) | |
aafe77cc | 2022 | { |
a509574e | 2023 | struct usb_interface *intf; |
aafe77cc | 2024 | struct usb_host_interface *hostif; |
a509574e | 2025 | u8 *cs_desc; |
aafe77cc CL |
2026 | |
2027 | intf = umidi->iface; | |
2028 | if (!intf) | |
2029 | return -ENOENT; | |
2030 | hostif = intf->altsetting; | |
2031 | /* | |
2032 | * Some devices have a descriptor <06 24 F1 02 <inputs> <outputs>>, | |
2033 | * some have standard class descriptors, or both kinds, or neither. | |
2034 | */ | |
2035 | for (cs_desc = hostif->extra; | |
2036 | cs_desc < hostif->extra + hostif->extralen && cs_desc[0] >= 2; | |
2037 | cs_desc += cs_desc[0]) { | |
2038 | if (cs_desc[0] >= 6 && | |
2039 | cs_desc[1] == USB_DT_CS_INTERFACE && | |
2040 | cs_desc[2] == 0xf1 && | |
2041 | cs_desc[3] == 0x02) { | |
2042 | endpoint->in_cables = (1 << cs_desc[4]) - 1; | |
2043 | endpoint->out_cables = (1 << cs_desc[5]) - 1; | |
2044 | return snd_usbmidi_detect_endpoints(umidi, endpoint, 1); | |
2045 | } else if (cs_desc[0] >= 7 && | |
2046 | cs_desc[1] == USB_DT_CS_INTERFACE && | |
2047 | cs_desc[2] == UAC_HEADER) { | |
2048 | return snd_usbmidi_get_ms_info(umidi, endpoint); | |
2049 | } | |
2050 | } | |
2051 | ||
2052 | return -ENODEV; | |
2053 | } | |
2054 | ||
1da177e4 LT |
2055 | /* |
2056 | * Creates the endpoints and their ports for Midiman devices. | |
2057 | */ | |
a509574e AG |
2058 | static int snd_usbmidi_create_endpoints_midiman(struct snd_usb_midi *umidi, |
2059 | struct snd_usb_midi_endpoint_info *endpoint) | |
1da177e4 | 2060 | { |
86e07d34 | 2061 | struct snd_usb_midi_endpoint_info ep_info; |
a509574e | 2062 | struct usb_interface *intf; |
1da177e4 | 2063 | struct usb_host_interface *hostif; |
a509574e AG |
2064 | struct usb_interface_descriptor *intfd; |
2065 | struct usb_endpoint_descriptor *epd; | |
1da177e4 LT |
2066 | int cable, err; |
2067 | ||
2068 | intf = umidi->iface; | |
2069 | if (!intf) | |
2070 | return -ENOENT; | |
2071 | hostif = intf->altsetting; | |
2072 | intfd = get_iface_desc(hostif); | |
2073 | /* | |
2074 | * The various MidiSport devices have more or less random endpoint | |
2075 | * numbers, so we have to identify the endpoints by their index in | |
2076 | * the descriptor array, like the driver for that other OS does. | |
2077 | * | |
2078 | * There is one interrupt input endpoint for all input ports, one | |
2079 | * bulk output endpoint for even-numbered ports, and one for odd- | |
2080 | * numbered ports. Both bulk output endpoints have corresponding | |
2081 | * input bulk endpoints (at indices 1 and 3) which aren't used. | |
2082 | */ | |
2083 | if (intfd->bNumEndpoints < (endpoint->out_cables > 0x0001 ? 5 : 3)) { | |
0ba41d91 | 2084 | dev_dbg(&umidi->dev->dev, "not enough endpoints\n"); |
1da177e4 LT |
2085 | return -ENOENT; |
2086 | } | |
2087 | ||
2088 | epd = get_endpoint(hostif, 0); | |
913ae5a2 | 2089 | if (!usb_endpoint_dir_in(epd) || !usb_endpoint_xfer_int(epd)) { |
0ba41d91 | 2090 | dev_dbg(&umidi->dev->dev, "endpoint[0] isn't interrupt\n"); |
1da177e4 LT |
2091 | return -ENXIO; |
2092 | } | |
2093 | epd = get_endpoint(hostif, 2); | |
913ae5a2 | 2094 | if (!usb_endpoint_dir_out(epd) || !usb_endpoint_xfer_bulk(epd)) { |
0ba41d91 | 2095 | dev_dbg(&umidi->dev->dev, "endpoint[2] isn't bulk output\n"); |
1da177e4 LT |
2096 | return -ENXIO; |
2097 | } | |
2098 | if (endpoint->out_cables > 0x0001) { | |
2099 | epd = get_endpoint(hostif, 4); | |
913ae5a2 JL |
2100 | if (!usb_endpoint_dir_out(epd) || |
2101 | !usb_endpoint_xfer_bulk(epd)) { | |
a509574e AG |
2102 | dev_dbg(&umidi->dev->dev, |
2103 | "endpoint[4] isn't bulk output\n"); | |
1da177e4 LT |
2104 | return -ENXIO; |
2105 | } | |
2106 | } | |
2107 | ||
a509574e AG |
2108 | ep_info.out_ep = get_endpoint(hostif, 2)->bEndpointAddress & |
2109 | USB_ENDPOINT_NUMBER_MASK; | |
e156ac4c | 2110 | ep_info.out_interval = 0; |
1da177e4 | 2111 | ep_info.out_cables = endpoint->out_cables & 0x5555; |
a509574e AG |
2112 | err = snd_usbmidi_out_endpoint_create(umidi, &ep_info, |
2113 | &umidi->endpoints[0]); | |
1da177e4 LT |
2114 | if (err < 0) |
2115 | return err; | |
2116 | ||
a509574e AG |
2117 | ep_info.in_ep = get_endpoint(hostif, 0)->bEndpointAddress & |
2118 | USB_ENDPOINT_NUMBER_MASK; | |
1da177e4 LT |
2119 | ep_info.in_interval = get_endpoint(hostif, 0)->bInterval; |
2120 | ep_info.in_cables = endpoint->in_cables; | |
a509574e AG |
2121 | err = snd_usbmidi_in_endpoint_create(umidi, &ep_info, |
2122 | &umidi->endpoints[0]); | |
1da177e4 LT |
2123 | if (err < 0) |
2124 | return err; | |
2125 | ||
2126 | if (endpoint->out_cables > 0x0001) { | |
a509574e AG |
2127 | ep_info.out_ep = get_endpoint(hostif, 4)->bEndpointAddress & |
2128 | USB_ENDPOINT_NUMBER_MASK; | |
1da177e4 | 2129 | ep_info.out_cables = endpoint->out_cables & 0xaaaa; |
a509574e AG |
2130 | err = snd_usbmidi_out_endpoint_create(umidi, &ep_info, |
2131 | &umidi->endpoints[1]); | |
1da177e4 LT |
2132 | if (err < 0) |
2133 | return err; | |
2134 | } | |
2135 | ||
2136 | for (cable = 0; cable < 0x10; ++cable) { | |
2137 | if (endpoint->out_cables & (1 << cable)) | |
a509574e AG |
2138 | snd_usbmidi_init_substream(umidi, |
2139 | SNDRV_RAWMIDI_STREAM_OUTPUT, | |
2140 | cable, | |
1da177e4 LT |
2141 | &umidi->endpoints[cable & 1].out->ports[cable].substream); |
2142 | if (endpoint->in_cables & (1 << cable)) | |
a509574e AG |
2143 | snd_usbmidi_init_substream(umidi, |
2144 | SNDRV_RAWMIDI_STREAM_INPUT, | |
2145 | cable, | |
1da177e4 LT |
2146 | &umidi->endpoints[0].in->ports[cable].substream); |
2147 | } | |
2148 | return 0; | |
2149 | } | |
2150 | ||
a7b928ac CL |
2151 | static struct snd_rawmidi_global_ops snd_usbmidi_ops = { |
2152 | .get_port_info = snd_usbmidi_get_port_info, | |
2153 | }; | |
2154 | ||
a509574e | 2155 | static int snd_usbmidi_create_rawmidi(struct snd_usb_midi *umidi, |
1da177e4 LT |
2156 | int out_ports, int in_ports) |
2157 | { | |
86e07d34 | 2158 | struct snd_rawmidi *rmidi; |
1da177e4 LT |
2159 | int err; |
2160 | ||
d82af9f9 CL |
2161 | err = snd_rawmidi_new(umidi->card, "USB MIDI", |
2162 | umidi->next_midi_device++, | |
1da177e4 LT |
2163 | out_ports, in_ports, &rmidi); |
2164 | if (err < 0) | |
2165 | return err; | |
d82af9f9 | 2166 | strcpy(rmidi->name, umidi->card->shortname); |
1da177e4 LT |
2167 | rmidi->info_flags = SNDRV_RAWMIDI_INFO_OUTPUT | |
2168 | SNDRV_RAWMIDI_INFO_INPUT | | |
2169 | SNDRV_RAWMIDI_INFO_DUPLEX; | |
a7b928ac | 2170 | rmidi->ops = &snd_usbmidi_ops; |
1da177e4 LT |
2171 | rmidi->private_data = umidi; |
2172 | rmidi->private_free = snd_usbmidi_rawmidi_free; | |
a509574e AG |
2173 | snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, |
2174 | &snd_usbmidi_output_ops); | |
2175 | snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, | |
2176 | &snd_usbmidi_input_ops); | |
1da177e4 LT |
2177 | |
2178 | umidi->rmidi = rmidi; | |
2179 | return 0; | |
2180 | } | |
2181 | ||
2182 | /* | |
2183 | * Temporarily stop input. | |
2184 | */ | |
a509574e | 2185 | void snd_usbmidi_input_stop(struct list_head *p) |
1da177e4 | 2186 | { |
a509574e | 2187 | struct snd_usb_midi *umidi; |
4773d1fb | 2188 | unsigned int i, j; |
1da177e4 | 2189 | |
86e07d34 | 2190 | umidi = list_entry(p, struct snd_usb_midi, list); |
f5f16541 TI |
2191 | if (!umidi->input_running) |
2192 | return; | |
1da177e4 | 2193 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { |
a509574e | 2194 | struct snd_usb_midi_endpoint *ep = &umidi->endpoints[i]; |
1da177e4 | 2195 | if (ep->in) |
4773d1fb CL |
2196 | for (j = 0; j < INPUT_URBS; ++j) |
2197 | usb_kill_urb(ep->in->urbs[j]); | |
1da177e4 | 2198 | } |
f5f16541 | 2199 | umidi->input_running = 0; |
1da177e4 | 2200 | } |
ed136aca | 2201 | EXPORT_SYMBOL(snd_usbmidi_input_stop); |
1da177e4 | 2202 | |
a509574e | 2203 | static void snd_usbmidi_input_start_ep(struct snd_usb_midi_in_endpoint *ep) |
1da177e4 | 2204 | { |
4773d1fb CL |
2205 | unsigned int i; |
2206 | ||
2207 | if (!ep) | |
2208 | return; | |
2209 | for (i = 0; i < INPUT_URBS; ++i) { | |
a509574e | 2210 | struct urb *urb = ep->urbs[i]; |
d82af9f9 | 2211 | urb->dev = ep->umidi->dev; |
1da177e4 LT |
2212 | snd_usbmidi_submit_urb(urb, GFP_KERNEL); |
2213 | } | |
2214 | } | |
2215 | ||
2216 | /* | |
2217 | * Resume input after a call to snd_usbmidi_input_stop(). | |
2218 | */ | |
a509574e | 2219 | void snd_usbmidi_input_start(struct list_head *p) |
1da177e4 | 2220 | { |
a509574e | 2221 | struct snd_usb_midi *umidi; |
1da177e4 LT |
2222 | int i; |
2223 | ||
86e07d34 | 2224 | umidi = list_entry(p, struct snd_usb_midi, list); |
f5f16541 TI |
2225 | if (umidi->input_running || !umidi->opened[1]) |
2226 | return; | |
1da177e4 LT |
2227 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) |
2228 | snd_usbmidi_input_start_ep(umidi->endpoints[i].in); | |
f5f16541 | 2229 | umidi->input_running = 1; |
1da177e4 | 2230 | } |
ed136aca | 2231 | EXPORT_SYMBOL(snd_usbmidi_input_start); |
1da177e4 | 2232 | |
f7881e5e AG |
2233 | /* |
2234 | * Prepare for suspend. Typically called from the USB suspend callback. | |
2235 | */ | |
2236 | void snd_usbmidi_suspend(struct list_head *p) | |
2237 | { | |
2238 | struct snd_usb_midi *umidi; | |
2239 | ||
2240 | umidi = list_entry(p, struct snd_usb_midi, list); | |
2241 | mutex_lock(&umidi->mutex); | |
2242 | snd_usbmidi_input_stop(p); | |
2243 | mutex_unlock(&umidi->mutex); | |
2244 | } | |
2245 | EXPORT_SYMBOL(snd_usbmidi_suspend); | |
2246 | ||
2247 | /* | |
2248 | * Resume. Typically called from the USB resume callback. | |
2249 | */ | |
2250 | void snd_usbmidi_resume(struct list_head *p) | |
2251 | { | |
2252 | struct snd_usb_midi *umidi; | |
2253 | ||
2254 | umidi = list_entry(p, struct snd_usb_midi, list); | |
2255 | mutex_lock(&umidi->mutex); | |
2256 | snd_usbmidi_input_start(p); | |
2257 | mutex_unlock(&umidi->mutex); | |
2258 | } | |
2259 | EXPORT_SYMBOL(snd_usbmidi_resume); | |
2260 | ||
1da177e4 LT |
2261 | /* |
2262 | * Creates and registers everything needed for a MIDI streaming interface. | |
2263 | */ | |
d82af9f9 | 2264 | int snd_usbmidi_create(struct snd_card *card, |
a509574e | 2265 | struct usb_interface *iface, |
d82af9f9 | 2266 | struct list_head *midi_list, |
a509574e | 2267 | const struct snd_usb_audio_quirk *quirk) |
1da177e4 | 2268 | { |
a509574e | 2269 | struct snd_usb_midi *umidi; |
86e07d34 | 2270 | struct snd_usb_midi_endpoint_info endpoints[MIDI_MAX_ENDPOINTS]; |
1da177e4 LT |
2271 | int out_ports, in_ports; |
2272 | int i, err; | |
2273 | ||
561b220a | 2274 | umidi = kzalloc(sizeof(*umidi), GFP_KERNEL); |
1da177e4 LT |
2275 | if (!umidi) |
2276 | return -ENOMEM; | |
d82af9f9 CL |
2277 | umidi->dev = interface_to_usbdev(iface); |
2278 | umidi->card = card; | |
1da177e4 LT |
2279 | umidi->iface = iface; |
2280 | umidi->quirk = quirk; | |
2281 | umidi->usb_protocol_ops = &snd_usbmidi_standard_ops; | |
c8846970 | 2282 | init_timer(&umidi->error_timer); |
c0792e00 | 2283 | spin_lock_init(&umidi->disc_lock); |
59866da9 | 2284 | init_rwsem(&umidi->disc_rwsem); |
96f61d9a | 2285 | mutex_init(&umidi->mutex); |
d82af9f9 CL |
2286 | umidi->usb_id = USB_ID(le16_to_cpu(umidi->dev->descriptor.idVendor), |
2287 | le16_to_cpu(umidi->dev->descriptor.idProduct)); | |
c8846970 CL |
2288 | umidi->error_timer.function = snd_usbmidi_error_timer; |
2289 | umidi->error_timer.data = (unsigned long)umidi; | |
1da177e4 LT |
2290 | |
2291 | /* detect the endpoint(s) to use */ | |
2292 | memset(endpoints, 0, sizeof(endpoints)); | |
d1bda045 CL |
2293 | switch (quirk ? quirk->type : QUIRK_MIDI_STANDARD_INTERFACE) { |
2294 | case QUIRK_MIDI_STANDARD_INTERFACE: | |
1da177e4 | 2295 | err = snd_usbmidi_get_ms_info(umidi, endpoints); |
d82af9f9 | 2296 | if (umidi->usb_id == USB_ID(0x0763, 0x0150)) /* M-Audio Uno */ |
d05cc104 CL |
2297 | umidi->usb_protocol_ops = |
2298 | &snd_usbmidi_maudio_broken_running_status_ops; | |
d1bda045 | 2299 | break; |
030a07e4 KW |
2300 | case QUIRK_MIDI_US122L: |
2301 | umidi->usb_protocol_ops = &snd_usbmidi_122l_ops; | |
2302 | /* fall through */ | |
d1bda045 CL |
2303 | case QUIRK_MIDI_FIXED_ENDPOINT: |
2304 | memcpy(&endpoints[0], quirk->data, | |
86e07d34 | 2305 | sizeof(struct snd_usb_midi_endpoint_info)); |
d1bda045 CL |
2306 | err = snd_usbmidi_detect_endpoints(umidi, &endpoints[0], 1); |
2307 | break; | |
2308 | case QUIRK_MIDI_YAMAHA: | |
2309 | err = snd_usbmidi_detect_yamaha(umidi, &endpoints[0]); | |
2310 | break; | |
aafe77cc CL |
2311 | case QUIRK_MIDI_ROLAND: |
2312 | err = snd_usbmidi_detect_roland(umidi, &endpoints[0]); | |
2313 | break; | |
d1bda045 CL |
2314 | case QUIRK_MIDI_MIDIMAN: |
2315 | umidi->usb_protocol_ops = &snd_usbmidi_midiman_ops; | |
2316 | memcpy(&endpoints[0], quirk->data, | |
86e07d34 | 2317 | sizeof(struct snd_usb_midi_endpoint_info)); |
d1bda045 CL |
2318 | err = 0; |
2319 | break; | |
2320 | case QUIRK_MIDI_NOVATION: | |
2321 | umidi->usb_protocol_ops = &snd_usbmidi_novation_ops; | |
2322 | err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints); | |
2323 | break; | |
c7f57216 | 2324 | case QUIRK_MIDI_RAW_BYTES: |
d1bda045 | 2325 | umidi->usb_protocol_ops = &snd_usbmidi_raw_ops; |
55de5ef9 CL |
2326 | /* |
2327 | * Interface 1 contains isochronous endpoints, but with the same | |
2328 | * numbers as in interface 0. Since it is interface 1 that the | |
2329 | * USB core has most recently seen, these descriptors are now | |
2330 | * associated with the endpoint numbers. This will foul up our | |
2331 | * attempts to submit bulk/interrupt URBs to the endpoints in | |
2332 | * interface 0, so we have to make sure that the USB core looks | |
2333 | * again at interface 0 by calling usb_set_interface() on it. | |
2334 | */ | |
c7f57216 CL |
2335 | if (umidi->usb_id == USB_ID(0x07fd, 0x0001)) /* MOTU Fastlane */ |
2336 | usb_set_interface(umidi->dev, 0, 0); | |
d1bda045 CL |
2337 | err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints); |
2338 | break; | |
2339 | case QUIRK_MIDI_EMAGIC: | |
2340 | umidi->usb_protocol_ops = &snd_usbmidi_emagic_ops; | |
2341 | memcpy(&endpoints[0], quirk->data, | |
86e07d34 | 2342 | sizeof(struct snd_usb_midi_endpoint_info)); |
d1bda045 CL |
2343 | err = snd_usbmidi_detect_endpoints(umidi, &endpoints[0], 1); |
2344 | break; | |
cc7a59bd | 2345 | case QUIRK_MIDI_CME: |
61870aed | 2346 | umidi->usb_protocol_ops = &snd_usbmidi_cme_ops; |
d1bda045 CL |
2347 | err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints); |
2348 | break; | |
4434ade8 KF |
2349 | case QUIRK_MIDI_AKAI: |
2350 | umidi->usb_protocol_ops = &snd_usbmidi_akai_ops; | |
2351 | err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints); | |
2352 | /* endpoint 1 is input-only */ | |
2353 | endpoints[1].out_cables = 0; | |
2354 | break; | |
1ef0e0a0 KA |
2355 | case QUIRK_MIDI_FTDI: |
2356 | umidi->usb_protocol_ops = &snd_usbmidi_ftdi_ops; | |
2357 | ||
2358 | /* set baud rate to 31250 (48 MHz / 16 / 96) */ | |
2359 | err = usb_control_msg(umidi->dev, usb_sndctrlpipe(umidi->dev, 0), | |
2360 | 3, 0x40, 0x60, 0, NULL, 0, 1000); | |
2361 | if (err < 0) | |
2362 | break; | |
2363 | ||
2364 | err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints); | |
2365 | break; | |
d1bda045 | 2366 | default: |
a509574e AG |
2367 | dev_err(&umidi->dev->dev, "invalid quirk type %d\n", |
2368 | quirk->type); | |
d1bda045 CL |
2369 | err = -ENXIO; |
2370 | break; | |
1da177e4 LT |
2371 | } |
2372 | if (err < 0) { | |
2373 | kfree(umidi); | |
2374 | return err; | |
2375 | } | |
2376 | ||
2377 | /* create rawmidi device */ | |
2378 | out_ports = 0; | |
2379 | in_ports = 0; | |
2380 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { | |
fbc54391 AM |
2381 | out_ports += hweight16(endpoints[i].out_cables); |
2382 | in_ports += hweight16(endpoints[i].in_cables); | |
1da177e4 LT |
2383 | } |
2384 | err = snd_usbmidi_create_rawmidi(umidi, out_ports, in_ports); | |
2385 | if (err < 0) { | |
2386 | kfree(umidi); | |
2387 | return err; | |
2388 | } | |
2389 | ||
2390 | /* create endpoint/port structures */ | |
2391 | if (quirk && quirk->type == QUIRK_MIDI_MIDIMAN) | |
2392 | err = snd_usbmidi_create_endpoints_midiman(umidi, &endpoints[0]); | |
2393 | else | |
2394 | err = snd_usbmidi_create_endpoints(umidi, endpoints); | |
2395 | if (err < 0) { | |
2396 | snd_usbmidi_free(umidi); | |
2397 | return err; | |
2398 | } | |
2399 | ||
cbc200bc CL |
2400 | usb_autopm_get_interface_no_resume(umidi->iface); |
2401 | ||
d82af9f9 | 2402 | list_add_tail(&umidi->list, midi_list); |
1da177e4 LT |
2403 | return 0; |
2404 | } | |
d82af9f9 | 2405 | EXPORT_SYMBOL(snd_usbmidi_create); |