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KEYS: add missing permission check for request_key() destination
[linux/fpc-iii.git] / sound / firewire / bebob / bebob_maudio.c
blob96f770024c3bcc9333ce07fee89b4b66e0371605
1 /*
2 * bebob_maudio.c - a part of driver for BeBoB based devices
3 *
4 * Copyright (c) 2013-2014 Takashi Sakamoto
5 *
6 * Licensed under the terms of the GNU General Public License, version 2.
7 */
8
9 #include "./bebob.h"
10 #include <sound/control.h>
11
12 /*
13 * Just powering on, Firewire 410/Audiophile/1814 and ProjectMix I/O wait to
14 * download firmware blob. To enable these devices, drivers should upload
15 * firmware blob and send a command to initialize configuration to factory
16 * settings when completing uploading. Then these devices generate bus reset
17 * and are recognized as new devices with the firmware.
18 *
19 * But with firmware version 5058 or later, the firmware is stored to flash
20 * memory in the device and drivers can tell bootloader to load the firmware
21 * by sending a cue. This cue must be sent one time.
22 *
23 * For streaming, both of output and input streams are needed for Firewire 410
24 * and Ozonic. The single stream is OK for the other devices even if the clock
25 * source is not SYT-Match (I note no devices use SYT-Match).
26 *
27 * Without streaming, the devices except for Firewire Audiophile can mix any
28 * input and output. For this reason, Audiophile cannot be used as standalone
29 * mixer.
30 *
31 * Firewire 1814 and ProjectMix I/O uses special firmware. It will be freezed
32 * when receiving any commands which the firmware can't understand. These
33 * devices utilize completely different system to control. It is some
34 * write-transaction directly into a certain address. All of addresses for mixer
35 * functionality is between 0xffc700700000 to 0xffc70070009c.
36 */
37
38 /* Offset from information register */
39 #define INFO_OFFSET_SW_DATE 0x20
40
41 /* Bootloader Protocol Version 1 */
42 #define MAUDIO_BOOTLOADER_CUE1 0x00000001
43 /*
44 * Initializing configuration to factory settings (= 0x1101), (swapped in line),
45 * Command code is zero (= 0x00),
46 * the number of operands is zero (= 0x00)(at least significant byte)
47 */
48 #define MAUDIO_BOOTLOADER_CUE2 0x01110000
49 /* padding */
50 #define MAUDIO_BOOTLOADER_CUE3 0x00000000
51
52 #define MAUDIO_SPECIFIC_ADDRESS 0xffc700000000ULL
53
54 #define METER_OFFSET 0x00600000
55
56 /* some device has sync info after metering data */
57 #define METER_SIZE_SPECIAL 84 /* with sync info */
58 #define METER_SIZE_FW410 76 /* with sync info */
59 #define METER_SIZE_AUDIOPHILE 60 /* with sync info */
60 #define METER_SIZE_SOLO 52 /* with sync info */
61 #define METER_SIZE_OZONIC 48
62 #define METER_SIZE_NRV10 80
63
64 /* labels for metering */
65 #define ANA_IN "Analog In"
66 #define ANA_OUT "Analog Out"
67 #define DIG_IN "Digital In"
68 #define SPDIF_IN "S/PDIF In"
69 #define ADAT_IN "ADAT In"
70 #define DIG_OUT "Digital Out"
71 #define SPDIF_OUT "S/PDIF Out"
72 #define ADAT_OUT "ADAT Out"
73 #define STRM_IN "Stream In"
74 #define AUX_OUT "Aux Out"
75 #define HP_OUT "HP Out"
76 /* for NRV */
77 #define UNKNOWN_METER "Unknown"
78
79 struct special_params {
80 bool is1814;
81 unsigned int clk_src;
82 unsigned int dig_in_fmt;
83 unsigned int dig_out_fmt;
84 unsigned int clk_lock;
85 struct snd_ctl_elem_id *ctl_id_sync;
86 };
87
88 /*
89 * For some M-Audio devices, this module just send cue to load firmware. After
90 * loading, the device generates bus reset and newly detected.
91 *
92 * If we make any transactions to load firmware, the operation may failed.
93 */
94 int snd_bebob_maudio_load_firmware(struct fw_unit *unit)
95 {
96 struct fw_device *device = fw_parent_device(unit);
97 int err, rcode;
98 u64 date;
99 __le32 cues[3] = {
100 cpu_to_le32(MAUDIO_BOOTLOADER_CUE1),
101 cpu_to_le32(MAUDIO_BOOTLOADER_CUE2),
102 cpu_to_le32(MAUDIO_BOOTLOADER_CUE3)
103 };
104
105 /* check date of software used to build */
106 err = snd_bebob_read_block(unit, INFO_OFFSET_SW_DATE,
107 &date, sizeof(u64));
108 if (err < 0)
109 goto end;
110 /*
111 * firmware version 5058 or later has date later than "20070401", but
112 * 'date' is not null-terminated.
113 */
114 if (date < 0x3230303730343031LL) {
115 dev_err(&unit->device,
116 "Use firmware version 5058 or later\n");
117 err = -ENOSYS;
118 goto end;
119 }
120
121 rcode = fw_run_transaction(device->card, TCODE_WRITE_BLOCK_REQUEST,
122 device->node_id, device->generation,
123 device->max_speed, BEBOB_ADDR_REG_REQ,
124 cues, sizeof(cues));
125 if (rcode != RCODE_COMPLETE) {
126 dev_err(&unit->device,
127 "Failed to send a cue to load firmware\n");
128 err = -EIO;
129 }
130 end:
131 return err;
132 }
133
134 static inline int
135 get_meter(struct snd_bebob *bebob, void *buf, unsigned int size)
136 {
137 return snd_fw_transaction(bebob->unit, TCODE_READ_BLOCK_REQUEST,
138 MAUDIO_SPECIFIC_ADDRESS + METER_OFFSET,
139 buf, size, 0);
140 }
141
142 static int
143 check_clk_sync(struct snd_bebob *bebob, unsigned int size, bool *sync)
144 {
145 int err;
146 u8 *buf;
147
148 buf = kmalloc(size, GFP_KERNEL);
149 if (buf == NULL)
150 return -ENOMEM;
151
152 err = get_meter(bebob, buf, size);
153 if (err < 0)
154 goto end;
155
156 /* if synced, this value is the same as SFC of FDF in CIP header */
157 *sync = (buf[size - 2] != 0xff);
158 end:
159 kfree(buf);
160 return err;
161 }
162
163 /*
164 * dig_fmt: 0x00:S/PDIF, 0x01:ADAT
165 * clk_lock: 0x00:unlock, 0x01:lock
166 */
167 static int
168 avc_maudio_set_special_clk(struct snd_bebob *bebob, unsigned int clk_src,
169 unsigned int dig_in_fmt, unsigned int dig_out_fmt,
170 unsigned int clk_lock)
171 {
172 struct special_params *params = bebob->maudio_special_quirk;
173 int err;
174 u8 *buf;
175
176 if (amdtp_stream_running(&bebob->rx_stream) ||
177 amdtp_stream_running(&bebob->tx_stream))
178 return -EBUSY;
179
180 buf = kmalloc(12, GFP_KERNEL);
181 if (buf == NULL)
182 return -ENOMEM;
183
184 buf[0] = 0x00; /* CONTROL */
185 buf[1] = 0xff; /* UNIT */
186 buf[2] = 0x00; /* vendor dependent */
187 buf[3] = 0x04; /* company ID high */
188 buf[4] = 0x00; /* company ID middle */
189 buf[5] = 0x04; /* company ID low */
190 buf[6] = 0xff & clk_src; /* clock source */
191 buf[7] = 0xff & dig_in_fmt; /* input digital format */
192 buf[8] = 0xff & dig_out_fmt; /* output digital format */
193 buf[9] = 0xff & clk_lock; /* lock these settings */
194 buf[10] = 0x00; /* padding */
195 buf[11] = 0x00; /* padding */
196
197 err = fcp_avc_transaction(bebob->unit, buf, 12, buf, 12,
198 BIT(1) | BIT(2) | BIT(3) | BIT(4) |
199 BIT(5) | BIT(6) | BIT(7) | BIT(8) |
200 BIT(9));
201 if ((err > 0) && (err < 10))
202 err = -EIO;
203 else if (buf[0] == 0x08) /* NOT IMPLEMENTED */
204 err = -ENOSYS;
205 else if (buf[0] == 0x0a) /* REJECTED */
206 err = -EINVAL;
207 if (err < 0)
208 goto end;
209
210 params->clk_src = buf[6];
211 params->dig_in_fmt = buf[7];
212 params->dig_out_fmt = buf[8];
213 params->clk_lock = buf[9];
214
215 if (params->ctl_id_sync)
216 snd_ctl_notify(bebob->card, SNDRV_CTL_EVENT_MASK_VALUE,
217 params->ctl_id_sync);
218
219 err = 0;
220 end:
221 kfree(buf);
222 return err;
223 }
224 static void
225 special_stream_formation_set(struct snd_bebob *bebob)
226 {
227 static const unsigned int ch_table[2][2][3] = {
228 /* AMDTP_OUT_STREAM */
229 { { 6, 6, 4 }, /* SPDIF */
230 { 12, 8, 4 } }, /* ADAT */
231 /* AMDTP_IN_STREAM */
232 { { 10, 10, 2 }, /* SPDIF */
233 { 16, 12, 2 } } /* ADAT */
234 };
235 struct special_params *params = bebob->maudio_special_quirk;
236 unsigned int i, max;
237
238 max = SND_BEBOB_STRM_FMT_ENTRIES - 1;
239 if (!params->is1814)
240 max -= 2;
241
242 for (i = 0; i < max; i++) {
243 bebob->tx_stream_formations[i + 1].pcm =
244 ch_table[AMDTP_IN_STREAM][params->dig_in_fmt][i / 2];
245 bebob->tx_stream_formations[i + 1].midi = 1;
246
247 bebob->rx_stream_formations[i + 1].pcm =
248 ch_table[AMDTP_OUT_STREAM][params->dig_out_fmt][i / 2];
249 bebob->rx_stream_formations[i + 1].midi = 1;
250 }
251 }
252
253 static int add_special_controls(struct snd_bebob *bebob);
254 int
255 snd_bebob_maudio_special_discover(struct snd_bebob *bebob, bool is1814)
256 {
257 struct special_params *params;
258 int err;
259
260 params = kzalloc(sizeof(struct special_params), GFP_KERNEL);
261 if (params == NULL)
262 return -ENOMEM;
263
264 mutex_lock(&bebob->mutex);
265
266 bebob->maudio_special_quirk = (void *)params;
267 params->is1814 = is1814;
268
269 /* initialize these parameters because driver is not allowed to ask */
270 bebob->rx_stream.context = ERR_PTR(-1);
271 bebob->tx_stream.context = ERR_PTR(-1);
272 err = avc_maudio_set_special_clk(bebob, 0x03, 0x00, 0x00, 0x00);
273 if (err < 0) {
274 dev_err(&bebob->unit->device,
275 "fail to initialize clock params: %d\n", err);
276 goto end;
277 }
278
279 err = add_special_controls(bebob);
280 if (err < 0)
281 goto end;
282
283 special_stream_formation_set(bebob);
284
285 if (params->is1814) {
286 bebob->midi_input_ports = 1;
287 bebob->midi_output_ports = 1;
288 } else {
289 bebob->midi_input_ports = 2;
290 bebob->midi_output_ports = 2;
291 }
292 end:
293 if (err < 0) {
294 kfree(params);
295 bebob->maudio_special_quirk = NULL;
296 }
297 mutex_unlock(&bebob->mutex);
298 return err;
299 }
300
301 /* Input plug shows actual rate. Output plug is needless for this purpose. */
302 static int special_get_rate(struct snd_bebob *bebob, unsigned int *rate)
303 {
304 int err, trials;
305
306 trials = 0;
307 do {
308 err = avc_general_get_sig_fmt(bebob->unit, rate,
309 AVC_GENERAL_PLUG_DIR_IN, 0);
310 } while (err == -EAGAIN && ++trials < 3);
311
312 return err;
313 }
314 static int special_set_rate(struct snd_bebob *bebob, unsigned int rate)
315 {
316 struct special_params *params = bebob->maudio_special_quirk;
317 int err;
318
319 err = avc_general_set_sig_fmt(bebob->unit, rate,
320 AVC_GENERAL_PLUG_DIR_OUT, 0);
321 if (err < 0)
322 goto end;
323
324 /*
325 * Just after changing sampling rate for output, a followed command
326 * for input is easy to fail. This is a workaround fot this issue.
327 */
328 msleep(100);
329
330 err = avc_general_set_sig_fmt(bebob->unit, rate,
331 AVC_GENERAL_PLUG_DIR_IN, 0);
332 if (err < 0)
333 goto end;
334
335 if (params->ctl_id_sync)
336 snd_ctl_notify(bebob->card, SNDRV_CTL_EVENT_MASK_VALUE,
337 params->ctl_id_sync);
338 end:
339 return err;
340 }
341
342 /* Clock source control for special firmware */
343 static char *const special_clk_labels[] = {
344 SND_BEBOB_CLOCK_INTERNAL " with Digital Mute", "Digital",
345 "Word Clock", SND_BEBOB_CLOCK_INTERNAL};
346 static int special_clk_get(struct snd_bebob *bebob, unsigned int *id)
347 {
348 struct special_params *params = bebob->maudio_special_quirk;
349 *id = params->clk_src;
350 return 0;
351 }
352 static int special_clk_ctl_info(struct snd_kcontrol *kctl,
353 struct snd_ctl_elem_info *einf)
354 {
355 einf->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
356 einf->count = 1;
357 einf->value.enumerated.items = ARRAY_SIZE(special_clk_labels);
358
359 if (einf->value.enumerated.item >= einf->value.enumerated.items)
360 einf->value.enumerated.item = einf->value.enumerated.items - 1;
361
362 strcpy(einf->value.enumerated.name,
363 special_clk_labels[einf->value.enumerated.item]);
364
365 return 0;
366 }
367 static int special_clk_ctl_get(struct snd_kcontrol *kctl,
368 struct snd_ctl_elem_value *uval)
369 {
370 struct snd_bebob *bebob = snd_kcontrol_chip(kctl);
371 struct special_params *params = bebob->maudio_special_quirk;
372 uval->value.enumerated.item[0] = params->clk_src;
373 return 0;
374 }
375 static int special_clk_ctl_put(struct snd_kcontrol *kctl,
376 struct snd_ctl_elem_value *uval)
377 {
378 struct snd_bebob *bebob = snd_kcontrol_chip(kctl);
379 struct special_params *params = bebob->maudio_special_quirk;
380 int err, id;
381
382 id = uval->value.enumerated.item[0];
383 if (id >= ARRAY_SIZE(special_clk_labels))
384 return -EINVAL;
385
386 mutex_lock(&bebob->mutex);
387
388 err = avc_maudio_set_special_clk(bebob, id,
389 params->dig_in_fmt,
390 params->dig_out_fmt,
391 params->clk_lock);
392 mutex_unlock(&bebob->mutex);
393
394 if (err >= 0)
395 err = 1;
396
397 return err;
398 }
399 static struct snd_kcontrol_new special_clk_ctl = {
400 .name = "Clock Source",
401 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
402 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
403 .info = special_clk_ctl_info,
404 .get = special_clk_ctl_get,
405 .put = special_clk_ctl_put
406 };
407
408 /* Clock synchronization control for special firmware */
409 static int special_sync_ctl_info(struct snd_kcontrol *kctl,
410 struct snd_ctl_elem_info *einf)
411 {
412 einf->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
413 einf->count = 1;
414 einf->value.integer.min = 0;
415 einf->value.integer.max = 1;
416
417 return 0;
418 }
419 static int special_sync_ctl_get(struct snd_kcontrol *kctl,
420 struct snd_ctl_elem_value *uval)
421 {
422 struct snd_bebob *bebob = snd_kcontrol_chip(kctl);
423 int err;
424 bool synced = 0;
425
426 err = check_clk_sync(bebob, METER_SIZE_SPECIAL, &synced);
427 if (err >= 0)
428 uval->value.integer.value[0] = synced;
429
430 return 0;
431 }
432 static struct snd_kcontrol_new special_sync_ctl = {
433 .name = "Sync Status",
434 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
435 .access = SNDRV_CTL_ELEM_ACCESS_READ,
436 .info = special_sync_ctl_info,
437 .get = special_sync_ctl_get,
438 };
439
440 /* Digital input interface control for special firmware */
441 static char *const special_dig_in_iface_labels[] = {
442 "S/PDIF Optical", "S/PDIF Coaxial", "ADAT Optical"
443 };
444 static int special_dig_in_iface_ctl_info(struct snd_kcontrol *kctl,
445 struct snd_ctl_elem_info *einf)
446 {
447 einf->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
448 einf->count = 1;
449 einf->value.enumerated.items = ARRAY_SIZE(special_dig_in_iface_labels);
450
451 if (einf->value.enumerated.item >= einf->value.enumerated.items)
452 einf->value.enumerated.item = einf->value.enumerated.items - 1;
453
454 strcpy(einf->value.enumerated.name,
455 special_dig_in_iface_labels[einf->value.enumerated.item]);
456
457 return 0;
458 }
459 static int special_dig_in_iface_ctl_get(struct snd_kcontrol *kctl,
460 struct snd_ctl_elem_value *uval)
461 {
462 struct snd_bebob *bebob = snd_kcontrol_chip(kctl);
463 struct special_params *params = bebob->maudio_special_quirk;
464 unsigned int dig_in_iface;
465 int err, val;
466
467 mutex_lock(&bebob->mutex);
468
469 err = avc_audio_get_selector(bebob->unit, 0x00, 0x04,
470 &dig_in_iface);
471 if (err < 0) {
472 dev_err(&bebob->unit->device,
473 "fail to get digital input interface: %d\n", err);
474 goto end;
475 }
476
477 /* encoded id for user value */
478 val = (params->dig_in_fmt << 1) | (dig_in_iface & 0x01);
479
480 /* for ADAT Optical */
481 if (val > 2)
482 val = 2;
483
484 uval->value.enumerated.item[0] = val;
485 end:
486 mutex_unlock(&bebob->mutex);
487 return err;
488 }
489 static int special_dig_in_iface_ctl_set(struct snd_kcontrol *kctl,
490 struct snd_ctl_elem_value *uval)
491 {
492 struct snd_bebob *bebob = snd_kcontrol_chip(kctl);
493 struct special_params *params = bebob->maudio_special_quirk;
494 unsigned int id, dig_in_fmt, dig_in_iface;
495 int err;
496
497 id = uval->value.enumerated.item[0];
498 if (id >= ARRAY_SIZE(special_dig_in_iface_labels))
499 return -EINVAL;
500
501 /* decode user value */
502 dig_in_fmt = (id >> 1) & 0x01;
503 dig_in_iface = id & 0x01;
504
505 mutex_lock(&bebob->mutex);
506
507 err = avc_maudio_set_special_clk(bebob,
508 params->clk_src,
509 dig_in_fmt,
510 params->dig_out_fmt,
511 params->clk_lock);
512 if (err < 0)
513 goto end;
514
515 /* For ADAT, optical interface is only available. */
516 if (params->dig_in_fmt > 0) {
517 err = 1;
518 goto end;
519 }
520
521 /* For S/PDIF, optical/coaxial interfaces are selectable. */
522 err = avc_audio_set_selector(bebob->unit, 0x00, 0x04, dig_in_iface);
523 if (err < 0)
524 dev_err(&bebob->unit->device,
525 "fail to set digital input interface: %d\n", err);
526 err = 1;
527 end:
528 special_stream_formation_set(bebob);
529 mutex_unlock(&bebob->mutex);
530 return err;
531 }
532 static struct snd_kcontrol_new special_dig_in_iface_ctl = {
533 .name = "Digital Input Interface",
534 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
535 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
536 .info = special_dig_in_iface_ctl_info,
537 .get = special_dig_in_iface_ctl_get,
538 .put = special_dig_in_iface_ctl_set
539 };
540
541 /* Digital output interface control for special firmware */
542 static char *const special_dig_out_iface_labels[] = {
543 "S/PDIF Optical and Coaxial", "ADAT Optical"
544 };
545 static int special_dig_out_iface_ctl_info(struct snd_kcontrol *kctl,
546 struct snd_ctl_elem_info *einf)
547 {
548 einf->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
549 einf->count = 1;
550 einf->value.enumerated.items = ARRAY_SIZE(special_dig_out_iface_labels);
551
552 if (einf->value.enumerated.item >= einf->value.enumerated.items)
553 einf->value.enumerated.item = einf->value.enumerated.items - 1;
554
555 strcpy(einf->value.enumerated.name,
556 special_dig_out_iface_labels[einf->value.enumerated.item]);
557
558 return 0;
559 }
560 static int special_dig_out_iface_ctl_get(struct snd_kcontrol *kctl,
561 struct snd_ctl_elem_value *uval)
562 {
563 struct snd_bebob *bebob = snd_kcontrol_chip(kctl);
564 struct special_params *params = bebob->maudio_special_quirk;
565 mutex_lock(&bebob->mutex);
566 uval->value.enumerated.item[0] = params->dig_out_fmt;
567 mutex_unlock(&bebob->mutex);
568 return 0;
569 }
570 static int special_dig_out_iface_ctl_set(struct snd_kcontrol *kctl,
571 struct snd_ctl_elem_value *uval)
572 {
573 struct snd_bebob *bebob = snd_kcontrol_chip(kctl);
574 struct special_params *params = bebob->maudio_special_quirk;
575 unsigned int id;
576 int err;
577
578 id = uval->value.enumerated.item[0];
579 if (id >= ARRAY_SIZE(special_dig_out_iface_labels))
580 return -EINVAL;
581
582 mutex_lock(&bebob->mutex);
583
584 err = avc_maudio_set_special_clk(bebob,
585 params->clk_src,
586 params->dig_in_fmt,
587 id, params->clk_lock);
588 if (err >= 0) {
589 special_stream_formation_set(bebob);
590 err = 1;
591 }
592
593 mutex_unlock(&bebob->mutex);
594 return err;
595 }
596 static struct snd_kcontrol_new special_dig_out_iface_ctl = {
597 .name = "Digital Output Interface",
598 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
599 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
600 .info = special_dig_out_iface_ctl_info,
601 .get = special_dig_out_iface_ctl_get,
602 .put = special_dig_out_iface_ctl_set
603 };
604
605 static int add_special_controls(struct snd_bebob *bebob)
606 {
607 struct snd_kcontrol *kctl;
608 struct special_params *params = bebob->maudio_special_quirk;
609 int err;
610
611 kctl = snd_ctl_new1(&special_clk_ctl, bebob);
612 err = snd_ctl_add(bebob->card, kctl);
613 if (err < 0)
614 goto end;
615
616 kctl = snd_ctl_new1(&special_sync_ctl, bebob);
617 err = snd_ctl_add(bebob->card, kctl);
618 if (err < 0)
619 goto end;
620 params->ctl_id_sync = &kctl->id;
621
622 kctl = snd_ctl_new1(&special_dig_in_iface_ctl, bebob);
623 err = snd_ctl_add(bebob->card, kctl);
624 if (err < 0)
625 goto end;
626
627 kctl = snd_ctl_new1(&special_dig_out_iface_ctl, bebob);
628 err = snd_ctl_add(bebob->card, kctl);
629 end:
630 return err;
631 }
632
633 /* Hardware metering for special firmware */
634 static char *const special_meter_labels[] = {
635 ANA_IN, ANA_IN, ANA_IN, ANA_IN,
636 SPDIF_IN,
637 ADAT_IN, ADAT_IN, ADAT_IN, ADAT_IN,
638 ANA_OUT, ANA_OUT,
639 SPDIF_OUT,
640 ADAT_OUT, ADAT_OUT, ADAT_OUT, ADAT_OUT,
641 HP_OUT, HP_OUT,
642 AUX_OUT
643 };
644 static int
645 special_meter_get(struct snd_bebob *bebob, u32 *target, unsigned int size)
646 {
647 __be16 *buf;
648 unsigned int i, c, channels;
649 int err;
650
651 channels = ARRAY_SIZE(special_meter_labels) * 2;
652 if (size < channels * sizeof(u32))
653 return -EINVAL;
654
655 /* omit last 4 bytes because it's clock info. */
656 buf = kmalloc(METER_SIZE_SPECIAL - 4, GFP_KERNEL);
657 if (buf == NULL)
658 return -ENOMEM;
659
660 err = get_meter(bebob, (void *)buf, METER_SIZE_SPECIAL - 4);
661 if (err < 0)
662 goto end;
663
664 /* Its format is u16 and some channels are unknown. */
665 i = 0;
666 for (c = 2; c < channels + 2; c++)
667 target[i++] = be16_to_cpu(buf[c]) << 16;
668 end:
669 kfree(buf);
670 return err;
671 }
672
673 /* last 4 bytes are omitted because it's clock info. */
674 static char *const fw410_meter_labels[] = {
675 ANA_IN, DIG_IN,
676 ANA_OUT, ANA_OUT, ANA_OUT, ANA_OUT, DIG_OUT,
677 HP_OUT
678 };
679 static char *const audiophile_meter_labels[] = {
680 ANA_IN, DIG_IN,
681 ANA_OUT, ANA_OUT, DIG_OUT,
682 HP_OUT, AUX_OUT,
683 };
684 static char *const solo_meter_labels[] = {
685 ANA_IN, DIG_IN,
686 STRM_IN, STRM_IN,
687 ANA_OUT, DIG_OUT
688 };
689
690 /* no clock info */
691 static char *const ozonic_meter_labels[] = {
692 ANA_IN, ANA_IN,
693 STRM_IN, STRM_IN,
694 ANA_OUT, ANA_OUT
695 };
696 /* TODO: need testers. these positions are based on authour's assumption */
697 static char *const nrv10_meter_labels[] = {
698 ANA_IN, ANA_IN, ANA_IN, ANA_IN,
699 DIG_IN,
700 ANA_OUT, ANA_OUT, ANA_OUT, ANA_OUT,
701 DIG_IN
702 };
703 static int
704 normal_meter_get(struct snd_bebob *bebob, u32 *buf, unsigned int size)
705 {
706 struct snd_bebob_meter_spec *spec = bebob->spec->meter;
707 unsigned int c, channels;
708 int err;
709
710 channels = spec->num * 2;
711 if (size < channels * sizeof(u32))
712 return -EINVAL;
713
714 err = get_meter(bebob, (void *)buf, size);
715 if (err < 0)
716 goto end;
717
718 for (c = 0; c < channels; c++)
719 be32_to_cpus(&buf[c]);
720
721 /* swap stream channels because inverted */
722 if (spec->labels == solo_meter_labels) {
723 swap(buf[4], buf[6]);
724 swap(buf[5], buf[7]);
725 }
726 end:
727 return err;
728 }
729
730 /* for special customized devices */
731 static struct snd_bebob_rate_spec special_rate_spec = {
732 .get = &special_get_rate,
733 .set = &special_set_rate,
734 };
735 static struct snd_bebob_clock_spec special_clk_spec = {
736 .num = ARRAY_SIZE(special_clk_labels),
737 .labels = special_clk_labels,
738 .get = &special_clk_get,
739 };
740 static struct snd_bebob_meter_spec special_meter_spec = {
741 .num = ARRAY_SIZE(special_meter_labels),
742 .labels = special_meter_labels,
743 .get = &special_meter_get
744 };
745 struct snd_bebob_spec maudio_special_spec = {
746 .clock = &special_clk_spec,
747 .rate = &special_rate_spec,
748 .meter = &special_meter_spec
749 };
750
751 /* Firewire 410 specification */
752 static struct snd_bebob_rate_spec usual_rate_spec = {
753 .get = &snd_bebob_stream_get_rate,
754 .set = &snd_bebob_stream_set_rate,
755 };
756 static struct snd_bebob_meter_spec fw410_meter_spec = {
757 .num = ARRAY_SIZE(fw410_meter_labels),
758 .labels = fw410_meter_labels,
759 .get = &normal_meter_get
760 };
761 struct snd_bebob_spec maudio_fw410_spec = {
762 .clock = NULL,
763 .rate = &usual_rate_spec,
764 .meter = &fw410_meter_spec
765 };
766
767 /* Firewire Audiophile specification */
768 static struct snd_bebob_meter_spec audiophile_meter_spec = {
769 .num = ARRAY_SIZE(audiophile_meter_labels),
770 .labels = audiophile_meter_labels,
771 .get = &normal_meter_get
772 };
773 struct snd_bebob_spec maudio_audiophile_spec = {
774 .clock = NULL,
775 .rate = &usual_rate_spec,
776 .meter = &audiophile_meter_spec
777 };
778
779 /* Firewire Solo specification */
780 static struct snd_bebob_meter_spec solo_meter_spec = {
781 .num = ARRAY_SIZE(solo_meter_labels),
782 .labels = solo_meter_labels,
783 .get = &normal_meter_get
784 };
785 struct snd_bebob_spec maudio_solo_spec = {
786 .clock = NULL,
787 .rate = &usual_rate_spec,
788 .meter = &solo_meter_spec
789 };
790
791 /* Ozonic specification */
792 static struct snd_bebob_meter_spec ozonic_meter_spec = {
793 .num = ARRAY_SIZE(ozonic_meter_labels),
794 .labels = ozonic_meter_labels,
795 .get = &normal_meter_get
796 };
797 struct snd_bebob_spec maudio_ozonic_spec = {
798 .clock = NULL,
799 .rate = &usual_rate_spec,
800 .meter = &ozonic_meter_spec
801 };
802
803 /* NRV10 specification */
804 static struct snd_bebob_meter_spec nrv10_meter_spec = {
805 .num = ARRAY_SIZE(nrv10_meter_labels),
806 .labels = nrv10_meter_labels,
807 .get = &normal_meter_get
808 };
809 struct snd_bebob_spec maudio_nrv10_spec = {
810 .clock = NULL,
811 .rate = &usual_rate_spec,
812 .meter = &nrv10_meter_spec
813 };
Linux with added FPC-III support