1 // SPDX-License-Identifier: GPL-2.0
3 * Focusrite Scarlett Gen 2/3 Driver for ALSA
6 * - 6i6/18i8/18i20 Gen 2
7 * - Solo/2i2/4i4/8i6/18i8/18i20 Gen 3
9 * Copyright (c) 2018-2021 by Geoffrey D. Bennett <g at b4.vu>
10 * Copyright (c) 2020-2021 by Vladimir Sadovnikov <sadko4u@gmail.com>
12 * Based on the Scarlett (Gen 1) Driver for ALSA:
14 * Copyright (c) 2013 by Tobias Hoffmann
15 * Copyright (c) 2013 by Robin Gareus <robin at gareus.org>
16 * Copyright (c) 2002 by Takashi Iwai <tiwai at suse.de>
17 * Copyright (c) 2014 by Chris J Arges <chris.j.arges at canonical.com>
19 * Many codes borrowed from audio.c by
20 * Alan Cox (alan at lxorguk.ukuu.org.uk)
21 * Thomas Sailer (sailer at ife.ee.ethz.ch)
24 * David Henningsson <david.henningsson at canonical.com>
27 /* The protocol was reverse engineered by looking at the communication
28 * between Focusrite Control 2.3.4 and the Focusrite(R) Scarlett 18i20
29 * (firmware 1083) using usbmon in July-August 2018.
31 * Scarlett 18i8 support added in April 2019.
33 * Scarlett 6i6 support added in June 2019 (thanks to Martin Wittmann
34 * for providing usbmon output and testing).
36 * Scarlett 4i4/8i6 Gen 3 support added in May 2020 (thanks to Laurent
37 * Debricon for donating a 4i4 and to Fredrik Unger for providing 8i6
38 * usbmon output and testing).
40 * Scarlett 18i8/18i20 Gen 3 support added in June 2020 (thanks to
41 * Darren Jaeckel, Alex Sedlack, and Clovis Lunel for providing usbmon
42 * output, protocol traces and testing).
44 * Support for loading mixer volume and mux configuration from the
45 * interface during driver initialisation added in May 2021 (thanks to
46 * Vladimir Sadovnikov for figuring out how).
48 * Support for Solo/2i2 Gen 3 added in May 2021 (thanks to Alexander
49 * Vorona for 2i2 protocol traces).
51 * Support for phantom power, direct monitoring, speaker switching,
52 * and talkback added in May-June 2021.
54 * This ALSA mixer gives access to (model-dependent):
55 * - input, output, mixer-matrix muxes
56 * - mixer-matrix gain stages
57 * - gain/volume/mute controls
59 * - line/inst level, pad, and air controls
60 * - phantom power, direct monitor, speaker switching, and talkback
62 * - disable/enable MSD mode
65 * /--------------\ 18chn 20chn /--------------\
66 * | Hardware in +--+------\ /-------------+--+ ALSA PCM out |
67 * \--------------/ | | | | \--------------/
71 * | +---------------+ | |
72 * | \ Matrix Mux / | |
79 * | +------------+ | |
83 * | | 18x10 Gain | | |
85 * | +-----+------+ | |
87 * |18chn |10chn | |20chn
92 * ===========================
93 * +---------------+ +--—------------+
94 * \ Output Mux / \ Capture Mux /
95 * +---+---+---+ +-----+-----+
99 * /--------------\ | | | /--------------\
100 * | S/PDIF, ADAT |<--/ |10chn \-->| ALSA PCM in |
101 * | Hardware out | | \--------------/
104 * +-------------+ Software gain per channel.
105 * | Master Gain |<-- 18i20 only: Switch per channel
106 * +------+------+ to select HW or SW gain control.
110 * | Analogue |<------/
115 * Gen 3 devices have a Mass Storage Device (MSD) mode where a small
116 * disk with registration and driver download information is presented
117 * to the host. To access the full functionality of the device without
118 * proprietary software, MSD mode can be disabled by:
119 * - holding down the 48V button for five seconds while powering on
121 * - using this driver and alsamixer to change the "MSD Mode" setting
122 * to Off and power-cycling the device
125 #include <linux/slab.h>
126 #include <linux/usb.h>
127 #include <linux/moduleparam.h>
129 #include <sound/control.h>
130 #include <sound/tlv.h>
132 #include "usbaudio.h"
136 #include "mixer_scarlett_gen2.h"
138 /* device_setup value to enable */
139 #define SCARLETT2_ENABLE 0x01
141 /* device_setup value to allow turning MSD mode back on */
142 #define SCARLETT2_MSD_ENABLE 0x02
144 /* some gui mixers can't handle negative ctl values */
145 #define SCARLETT2_VOLUME_BIAS 127
147 /* mixer range from -80dB to +6dB in 0.5dB steps */
148 #define SCARLETT2_MIXER_MIN_DB -80
149 #define SCARLETT2_MIXER_BIAS (-SCARLETT2_MIXER_MIN_DB * 2)
150 #define SCARLETT2_MIXER_MAX_DB 6
151 #define SCARLETT2_MIXER_MAX_VALUE \
152 ((SCARLETT2_MIXER_MAX_DB - SCARLETT2_MIXER_MIN_DB) * 2)
153 #define SCARLETT2_MIXER_VALUE_COUNT (SCARLETT2_MIXER_MAX_VALUE + 1)
155 /* map from (dB + 80) * 2 to mixer value
156 * for dB in 0 .. 172: int(8192 * pow(10, ((dB - 160) / 2 / 20)))
158 static const u16 scarlett2_mixer_values[SCARLETT2_MIXER_VALUE_COUNT] = {
159 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2,
160 2, 2, 3, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 6, 6, 6, 7, 7, 8, 8,
161 9, 9, 10, 10, 11, 12, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21,
162 23, 24, 25, 27, 29, 30, 32, 34, 36, 38, 41, 43, 46, 48, 51,
163 54, 57, 61, 65, 68, 73, 77, 81, 86, 91, 97, 103, 109, 115,
164 122, 129, 137, 145, 154, 163, 173, 183, 194, 205, 217, 230,
165 244, 259, 274, 290, 307, 326, 345, 365, 387, 410, 434, 460,
166 487, 516, 547, 579, 614, 650, 689, 730, 773, 819, 867, 919,
167 973, 1031, 1092, 1157, 1225, 1298, 1375, 1456, 1543, 1634,
168 1731, 1833, 1942, 2057, 2179, 2308, 2445, 2590, 2744, 2906,
169 3078, 3261, 3454, 3659, 3876, 4105, 4349, 4606, 4879, 5168,
170 5475, 5799, 6143, 6507, 6892, 7301, 7733, 8192, 8677, 9191,
171 9736, 10313, 10924, 11571, 12257, 12983, 13752, 14567, 15430,
175 /* Maximum number of analogue outputs */
176 #define SCARLETT2_ANALOGUE_MAX 10
178 /* Maximum number of level and pad switches */
179 #define SCARLETT2_LEVEL_SWITCH_MAX 2
180 #define SCARLETT2_PAD_SWITCH_MAX 8
181 #define SCARLETT2_AIR_SWITCH_MAX 8
182 #define SCARLETT2_PHANTOM_SWITCH_MAX 2
184 /* Maximum number of inputs to the mixer */
185 #define SCARLETT2_INPUT_MIX_MAX 25
187 /* Maximum number of outputs from the mixer */
188 #define SCARLETT2_OUTPUT_MIX_MAX 12
190 /* Maximum size of the data in the USB mux assignment message:
191 * 20 inputs, 20 outputs, 25 matrix inputs, 12 spare
193 #define SCARLETT2_MUX_MAX 77
195 /* Maximum number of meters (sum of output port counts) */
196 #define SCARLETT2_MAX_METERS 65
198 /* Hardware port types:
199 * - None (no input to mux)
207 SCARLETT2_PORT_TYPE_NONE = 0,
208 SCARLETT2_PORT_TYPE_ANALOGUE = 1,
209 SCARLETT2_PORT_TYPE_SPDIF = 2,
210 SCARLETT2_PORT_TYPE_ADAT = 3,
211 SCARLETT2_PORT_TYPE_MIX = 4,
212 SCARLETT2_PORT_TYPE_PCM = 5,
213 SCARLETT2_PORT_TYPE_COUNT = 6,
216 /* I/O count of each port type kept in struct scarlett2_ports */
218 SCARLETT2_PORT_IN = 0,
219 SCARLETT2_PORT_OUT = 1,
220 SCARLETT2_PORT_DIRNS = 2,
223 /* Dim/Mute buttons on the 18i20 */
225 SCARLETT2_BUTTON_MUTE = 0,
226 SCARLETT2_BUTTON_DIM = 1,
227 SCARLETT2_DIM_MUTE_COUNT = 2,
230 static const char *const scarlett2_dim_mute_names[SCARLETT2_DIM_MUTE_COUNT] = {
231 "Mute Playback Switch", "Dim Playback Switch"
234 /* Description of each hardware port type:
235 * - id: hardware ID of this port type
236 * - src_descr: printf format string for mux input selections
237 * - src_num_offset: added to channel number for the fprintf
238 * - dst_descr: printf format string for mixer controls
240 struct scarlett2_port {
242 const char * const src_descr;
244 const char * const dst_descr;
247 static const struct scarlett2_port scarlett2_ports[SCARLETT2_PORT_TYPE_COUNT] = {
248 [SCARLETT2_PORT_TYPE_NONE] = {
252 [SCARLETT2_PORT_TYPE_ANALOGUE] = {
254 .src_descr = "Analogue %d",
256 .dst_descr = "Analogue Output %02d Playback"
258 [SCARLETT2_PORT_TYPE_SPDIF] = {
260 .src_descr = "S/PDIF %d",
262 .dst_descr = "S/PDIF Output %d Playback"
264 [SCARLETT2_PORT_TYPE_ADAT] = {
266 .src_descr = "ADAT %d",
268 .dst_descr = "ADAT Output %d Playback"
270 [SCARLETT2_PORT_TYPE_MIX] = {
272 .src_descr = "Mix %c",
273 .src_num_offset = 'A',
274 .dst_descr = "Mixer Input %02d Capture"
276 [SCARLETT2_PORT_TYPE_PCM] = {
278 .src_descr = "PCM %d",
280 .dst_descr = "PCM %02d Capture"
284 /* Number of mux tables: one for each band of sample rates
285 * (44.1/48kHz, 88.2/96kHz, and 176.4/176kHz)
287 #define SCARLETT2_MUX_TABLES 3
289 /* Maximum number of entries in a mux table */
290 #define SCARLETT2_MAX_MUX_ENTRIES 10
292 /* One entry within mux_assignment defines the port type and range of
293 * ports to add to the set_mux message. The end of the list is marked
296 struct scarlett2_mux_entry {
302 struct scarlett2_device_info {
303 u32 usb_id; /* USB device identifier */
305 /* Gen 3 devices have an internal MSD mode switch that needs
306 * to be disabled in order to access the full functionality of
311 /* Gen 3 devices without a mixer have a different
316 /* line out hw volume is sw controlled */
319 /* support for main/alt speaker switching */
320 u8 has_speaker_switching;
322 /* support for talkback microphone */
325 /* the number of analogue inputs with a software switchable
326 * level control that can be set to line or instrument
328 u8 level_input_count;
330 /* the first input with a level control (0-based) */
331 u8 level_input_first;
333 /* the number of analogue inputs with a software switchable
338 /* the number of analogue inputs with a software switchable
343 /* the number of phantom (48V) software switchable controls */
346 /* the number of inputs each phantom switch controls */
347 u8 inputs_per_phantom;
349 /* the number of direct monitor options
350 * (0 = none, 1 = mono only, 2 = mono/stereo)
354 /* remap analogue outputs; 18i8 Gen 3 has "line 3/4" connected
355 * internally to the analogue 7/8 outputs
357 u8 line_out_remap_enable;
358 u8 line_out_remap[SCARLETT2_ANALOGUE_MAX];
360 /* additional description for the line out volume controls */
361 const char * const line_out_descrs[SCARLETT2_ANALOGUE_MAX];
363 /* number of sources/destinations of each port type */
364 const int port_count[SCARLETT2_PORT_TYPE_COUNT][SCARLETT2_PORT_DIRNS];
366 /* layout/order of the entries in the set_mux message */
367 struct scarlett2_mux_entry mux_assignment[SCARLETT2_MUX_TABLES]
368 [SCARLETT2_MAX_MUX_ENTRIES];
371 struct scarlett2_data {
372 struct usb_mixer_interface *mixer;
373 struct mutex usb_mutex; /* prevent sending concurrent USB requests */
374 struct mutex data_mutex; /* lock access to this data */
375 struct delayed_work work;
376 const struct scarlett2_device_info *info;
377 __u8 bInterfaceNumber;
378 __u8 bEndpointAddress;
379 __u16 wMaxPacketSize;
386 u8 input_other_updated;
387 u8 monitor_other_updated;
389 u8 speaker_switching_switched;
392 u8 vol[SCARLETT2_ANALOGUE_MAX];
393 u8 vol_sw_hw_switch[SCARLETT2_ANALOGUE_MAX];
394 u8 mute_switch[SCARLETT2_ANALOGUE_MAX];
395 u8 level_switch[SCARLETT2_LEVEL_SWITCH_MAX];
396 u8 pad_switch[SCARLETT2_PAD_SWITCH_MAX];
397 u8 dim_mute[SCARLETT2_DIM_MUTE_COUNT];
398 u8 air_switch[SCARLETT2_AIR_SWITCH_MAX];
399 u8 phantom_switch[SCARLETT2_PHANTOM_SWITCH_MAX];
400 u8 phantom_persistence;
401 u8 direct_monitor_switch;
402 u8 speaker_switching_switch;
404 u8 talkback_map[SCARLETT2_OUTPUT_MIX_MAX];
406 struct snd_kcontrol *sync_ctl;
407 struct snd_kcontrol *master_vol_ctl;
408 struct snd_kcontrol *vol_ctls[SCARLETT2_ANALOGUE_MAX];
409 struct snd_kcontrol *sw_hw_ctls[SCARLETT2_ANALOGUE_MAX];
410 struct snd_kcontrol *mute_ctls[SCARLETT2_ANALOGUE_MAX];
411 struct snd_kcontrol *dim_mute_ctls[SCARLETT2_DIM_MUTE_COUNT];
412 struct snd_kcontrol *level_ctls[SCARLETT2_LEVEL_SWITCH_MAX];
413 struct snd_kcontrol *pad_ctls[SCARLETT2_PAD_SWITCH_MAX];
414 struct snd_kcontrol *air_ctls[SCARLETT2_AIR_SWITCH_MAX];
415 struct snd_kcontrol *phantom_ctls[SCARLETT2_PHANTOM_SWITCH_MAX];
416 struct snd_kcontrol *mux_ctls[SCARLETT2_MUX_MAX];
417 struct snd_kcontrol *direct_monitor_ctl;
418 struct snd_kcontrol *speaker_switching_ctl;
419 struct snd_kcontrol *talkback_ctl;
420 u8 mux[SCARLETT2_MUX_MAX];
421 u8 mix[SCARLETT2_INPUT_MIX_MAX * SCARLETT2_OUTPUT_MIX_MAX];
424 /*** Model-specific data ***/
426 static const struct scarlett2_device_info s6i6_gen2_info = {
427 .usb_id = USB_ID(0x1235, 0x8203),
430 .level_input_count = 2,
431 .pad_input_count = 2,
441 [SCARLETT2_PORT_TYPE_NONE] = { 1, 0 },
442 [SCARLETT2_PORT_TYPE_ANALOGUE] = { 4, 4 },
443 [SCARLETT2_PORT_TYPE_SPDIF] = { 2, 2 },
444 [SCARLETT2_PORT_TYPE_MIX] = { 10, 18 },
445 [SCARLETT2_PORT_TYPE_PCM] = { 6, 6 },
448 .mux_assignment = { {
449 { SCARLETT2_PORT_TYPE_PCM, 0, 6 },
450 { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 4 },
451 { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
452 { SCARLETT2_PORT_TYPE_MIX, 0, 18 },
453 { SCARLETT2_PORT_TYPE_NONE, 0, 8 },
456 { SCARLETT2_PORT_TYPE_PCM, 0, 6 },
457 { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 4 },
458 { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
459 { SCARLETT2_PORT_TYPE_MIX, 0, 18 },
460 { SCARLETT2_PORT_TYPE_NONE, 0, 8 },
463 { SCARLETT2_PORT_TYPE_PCM, 0, 6 },
464 { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 4 },
465 { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
466 { SCARLETT2_PORT_TYPE_MIX, 0, 18 },
467 { SCARLETT2_PORT_TYPE_NONE, 0, 8 },
472 static const struct scarlett2_device_info s18i8_gen2_info = {
473 .usb_id = USB_ID(0x1235, 0x8204),
476 .level_input_count = 2,
477 .pad_input_count = 4,
489 [SCARLETT2_PORT_TYPE_NONE] = { 1, 0 },
490 [SCARLETT2_PORT_TYPE_ANALOGUE] = { 8, 6 },
491 [SCARLETT2_PORT_TYPE_SPDIF] = { 2, 2 },
492 [SCARLETT2_PORT_TYPE_ADAT] = { 8, 0 },
493 [SCARLETT2_PORT_TYPE_MIX] = { 10, 18 },
494 [SCARLETT2_PORT_TYPE_PCM] = { 8, 18 },
497 .mux_assignment = { {
498 { SCARLETT2_PORT_TYPE_PCM, 0, 18 },
499 { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 6 },
500 { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
501 { SCARLETT2_PORT_TYPE_MIX, 0, 18 },
502 { SCARLETT2_PORT_TYPE_NONE, 0, 8 },
505 { SCARLETT2_PORT_TYPE_PCM, 0, 14 },
506 { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 6 },
507 { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
508 { SCARLETT2_PORT_TYPE_MIX, 0, 18 },
509 { SCARLETT2_PORT_TYPE_NONE, 0, 8 },
512 { SCARLETT2_PORT_TYPE_PCM, 0, 10 },
513 { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 6 },
514 { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
515 { SCARLETT2_PORT_TYPE_MIX, 0, 18 },
516 { SCARLETT2_PORT_TYPE_NONE, 0, 4 },
521 static const struct scarlett2_device_info s18i20_gen2_info = {
522 .usb_id = USB_ID(0x1235, 0x8201),
525 .line_out_hw_vol = 1,
541 [SCARLETT2_PORT_TYPE_NONE] = { 1, 0 },
542 [SCARLETT2_PORT_TYPE_ANALOGUE] = { 8, 10 },
543 [SCARLETT2_PORT_TYPE_SPDIF] = { 2, 2 },
544 [SCARLETT2_PORT_TYPE_ADAT] = { 8, 8 },
545 [SCARLETT2_PORT_TYPE_MIX] = { 10, 18 },
546 [SCARLETT2_PORT_TYPE_PCM] = { 20, 18 },
549 .mux_assignment = { {
550 { SCARLETT2_PORT_TYPE_PCM, 0, 18 },
551 { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 10 },
552 { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
553 { SCARLETT2_PORT_TYPE_ADAT, 0, 8 },
554 { SCARLETT2_PORT_TYPE_MIX, 0, 18 },
555 { SCARLETT2_PORT_TYPE_NONE, 0, 8 },
558 { SCARLETT2_PORT_TYPE_PCM, 0, 14 },
559 { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 10 },
560 { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
561 { SCARLETT2_PORT_TYPE_ADAT, 0, 4 },
562 { SCARLETT2_PORT_TYPE_MIX, 0, 18 },
563 { SCARLETT2_PORT_TYPE_NONE, 0, 8 },
566 { SCARLETT2_PORT_TYPE_PCM, 0, 10 },
567 { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 10 },
568 { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
569 { SCARLETT2_PORT_TYPE_MIX, 0, 18 },
570 { SCARLETT2_PORT_TYPE_NONE, 0, 6 },
575 static const struct scarlett2_device_info solo_gen3_info = {
576 .usb_id = USB_ID(0x1235, 0x8211),
579 .level_input_count = 1,
580 .level_input_first = 1,
581 .air_input_count = 1,
583 .inputs_per_phantom = 1,
587 static const struct scarlett2_device_info s2i2_gen3_info = {
588 .usb_id = USB_ID(0x1235, 0x8210),
591 .level_input_count = 2,
592 .air_input_count = 2,
594 .inputs_per_phantom = 2,
598 static const struct scarlett2_device_info s4i4_gen3_info = {
599 .usb_id = USB_ID(0x1235, 0x8212),
603 .level_input_count = 2,
604 .pad_input_count = 2,
605 .air_input_count = 2,
607 .inputs_per_phantom = 2,
617 [SCARLETT2_PORT_TYPE_NONE] = { 1, 0 },
618 [SCARLETT2_PORT_TYPE_ANALOGUE] = { 4, 4 },
619 [SCARLETT2_PORT_TYPE_MIX] = { 6, 8 },
620 [SCARLETT2_PORT_TYPE_PCM] = { 4, 6 },
623 .mux_assignment = { {
624 { SCARLETT2_PORT_TYPE_PCM, 0, 6 },
625 { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 4 },
626 { SCARLETT2_PORT_TYPE_MIX, 0, 8 },
627 { SCARLETT2_PORT_TYPE_NONE, 0, 16 },
630 { SCARLETT2_PORT_TYPE_PCM, 0, 6 },
631 { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 4 },
632 { SCARLETT2_PORT_TYPE_MIX, 0, 8 },
633 { SCARLETT2_PORT_TYPE_NONE, 0, 16 },
636 { SCARLETT2_PORT_TYPE_PCM, 0, 6 },
637 { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 4 },
638 { SCARLETT2_PORT_TYPE_MIX, 0, 8 },
639 { SCARLETT2_PORT_TYPE_NONE, 0, 16 },
644 static const struct scarlett2_device_info s8i6_gen3_info = {
645 .usb_id = USB_ID(0x1235, 0x8213),
649 .level_input_count = 2,
650 .pad_input_count = 2,
651 .air_input_count = 2,
653 .inputs_per_phantom = 2,
663 [SCARLETT2_PORT_TYPE_NONE] = { 1, 0 },
664 [SCARLETT2_PORT_TYPE_ANALOGUE] = { 6, 4 },
665 [SCARLETT2_PORT_TYPE_SPDIF] = { 2, 2 },
666 [SCARLETT2_PORT_TYPE_MIX] = { 8, 8 },
667 [SCARLETT2_PORT_TYPE_PCM] = { 6, 10 },
670 .mux_assignment = { {
671 { SCARLETT2_PORT_TYPE_PCM, 0, 8 },
672 { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 4 },
673 { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
674 { SCARLETT2_PORT_TYPE_PCM, 8, 2 },
675 { SCARLETT2_PORT_TYPE_MIX, 0, 8 },
676 { SCARLETT2_PORT_TYPE_NONE, 0, 18 },
679 { SCARLETT2_PORT_TYPE_PCM, 0, 8 },
680 { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 4 },
681 { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
682 { SCARLETT2_PORT_TYPE_PCM, 8, 2 },
683 { SCARLETT2_PORT_TYPE_MIX, 0, 8 },
684 { SCARLETT2_PORT_TYPE_NONE, 0, 18 },
687 { SCARLETT2_PORT_TYPE_PCM, 0, 8 },
688 { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 4 },
689 { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
690 { SCARLETT2_PORT_TYPE_PCM, 8, 2 },
691 { SCARLETT2_PORT_TYPE_MIX, 0, 8 },
692 { SCARLETT2_PORT_TYPE_NONE, 0, 18 },
697 static const struct scarlett2_device_info s18i8_gen3_info = {
698 .usb_id = USB_ID(0x1235, 0x8214),
702 .line_out_hw_vol = 1,
703 .has_speaker_switching = 1,
704 .level_input_count = 2,
705 .pad_input_count = 4,
706 .air_input_count = 4,
708 .inputs_per_phantom = 2,
710 .line_out_remap_enable = 1,
711 .line_out_remap = { 0, 1, 6, 7, 2, 3, 4, 5 },
725 [SCARLETT2_PORT_TYPE_NONE] = { 1, 0 },
726 [SCARLETT2_PORT_TYPE_ANALOGUE] = { 8, 8 },
727 [SCARLETT2_PORT_TYPE_SPDIF] = { 2, 2 },
728 [SCARLETT2_PORT_TYPE_ADAT] = { 8, 0 },
729 [SCARLETT2_PORT_TYPE_MIX] = { 10, 20 },
730 [SCARLETT2_PORT_TYPE_PCM] = { 8, 20 },
733 .mux_assignment = { {
734 { SCARLETT2_PORT_TYPE_PCM, 0, 10 },
735 { SCARLETT2_PORT_TYPE_PCM, 12, 8 },
736 { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 2 },
737 { SCARLETT2_PORT_TYPE_ANALOGUE, 6, 2 },
738 { SCARLETT2_PORT_TYPE_ANALOGUE, 2, 4 },
739 { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
740 { SCARLETT2_PORT_TYPE_PCM, 10, 2 },
741 { SCARLETT2_PORT_TYPE_MIX, 0, 20 },
742 { SCARLETT2_PORT_TYPE_NONE, 0, 10 },
745 { SCARLETT2_PORT_TYPE_PCM, 0, 10 },
746 { SCARLETT2_PORT_TYPE_PCM, 12, 4 },
747 { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 2 },
748 { SCARLETT2_PORT_TYPE_ANALOGUE, 6, 2 },
749 { SCARLETT2_PORT_TYPE_ANALOGUE, 2, 4 },
750 { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
751 { SCARLETT2_PORT_TYPE_PCM, 10, 2 },
752 { SCARLETT2_PORT_TYPE_MIX, 0, 20 },
753 { SCARLETT2_PORT_TYPE_NONE, 0, 10 },
756 { SCARLETT2_PORT_TYPE_PCM, 0, 10 },
757 { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 2 },
758 { SCARLETT2_PORT_TYPE_ANALOGUE, 6, 2 },
759 { SCARLETT2_PORT_TYPE_ANALOGUE, 2, 4 },
760 { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
761 { SCARLETT2_PORT_TYPE_MIX, 0, 20 },
762 { SCARLETT2_PORT_TYPE_NONE, 0, 10 },
767 static const struct scarlett2_device_info s18i20_gen3_info = {
768 .usb_id = USB_ID(0x1235, 0x8215),
772 .line_out_hw_vol = 1,
773 .has_speaker_switching = 1,
775 .level_input_count = 2,
776 .pad_input_count = 8,
777 .air_input_count = 8,
779 .inputs_per_phantom = 4,
795 [SCARLETT2_PORT_TYPE_NONE] = { 1, 0 },
796 [SCARLETT2_PORT_TYPE_ANALOGUE] = { 9, 10 },
797 [SCARLETT2_PORT_TYPE_SPDIF] = { 2, 2 },
798 [SCARLETT2_PORT_TYPE_ADAT] = { 8, 8 },
799 [SCARLETT2_PORT_TYPE_MIX] = { 12, 25 },
800 [SCARLETT2_PORT_TYPE_PCM] = { 20, 20 },
803 .mux_assignment = { {
804 { SCARLETT2_PORT_TYPE_PCM, 0, 8 },
805 { SCARLETT2_PORT_TYPE_PCM, 10, 10 },
806 { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 10 },
807 { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
808 { SCARLETT2_PORT_TYPE_ADAT, 0, 8 },
809 { SCARLETT2_PORT_TYPE_PCM, 8, 2 },
810 { SCARLETT2_PORT_TYPE_MIX, 0, 25 },
811 { SCARLETT2_PORT_TYPE_NONE, 0, 12 },
814 { SCARLETT2_PORT_TYPE_PCM, 0, 8 },
815 { SCARLETT2_PORT_TYPE_PCM, 10, 8 },
816 { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 10 },
817 { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
818 { SCARLETT2_PORT_TYPE_ADAT, 0, 8 },
819 { SCARLETT2_PORT_TYPE_PCM, 8, 2 },
820 { SCARLETT2_PORT_TYPE_MIX, 0, 25 },
821 { SCARLETT2_PORT_TYPE_NONE, 0, 10 },
824 { SCARLETT2_PORT_TYPE_PCM, 0, 10 },
825 { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 10 },
826 { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
827 { SCARLETT2_PORT_TYPE_NONE, 0, 24 },
832 static const struct scarlett2_device_info *scarlett2_devices[] = {
833 /* Supported Gen 2 devices */
838 /* Supported Gen 3 devices */
850 /* get the starting port index number for a given port type/direction */
851 static int scarlett2_get_port_start_num(
852 const int port_count[][SCARLETT2_PORT_DIRNS],
853 int direction, int port_type)
857 for (i = 0; i < port_type; i++)
858 num += port_count[i][direction];
863 /*** USB Interactions ***/
865 /* Notifications from the interface */
866 #define SCARLETT2_USB_NOTIFY_SYNC 0x00000008
867 #define SCARLETT2_USB_NOTIFY_DIM_MUTE 0x00200000
868 #define SCARLETT2_USB_NOTIFY_MONITOR 0x00400000
869 #define SCARLETT2_USB_NOTIFY_INPUT_OTHER 0x00800000
870 #define SCARLETT2_USB_NOTIFY_MONITOR_OTHER 0x01000000
872 /* Commands for sending/receiving requests/responses */
873 #define SCARLETT2_USB_CMD_INIT 0
874 #define SCARLETT2_USB_CMD_REQ 2
875 #define SCARLETT2_USB_CMD_RESP 3
877 #define SCARLETT2_USB_INIT_1 0x00000000
878 #define SCARLETT2_USB_INIT_2 0x00000002
879 #define SCARLETT2_USB_GET_METER 0x00001001
880 #define SCARLETT2_USB_GET_MIX 0x00002001
881 #define SCARLETT2_USB_SET_MIX 0x00002002
882 #define SCARLETT2_USB_GET_MUX 0x00003001
883 #define SCARLETT2_USB_SET_MUX 0x00003002
884 #define SCARLETT2_USB_GET_SYNC 0x00006004
885 #define SCARLETT2_USB_GET_DATA 0x00800000
886 #define SCARLETT2_USB_SET_DATA 0x00800001
887 #define SCARLETT2_USB_DATA_CMD 0x00800002
889 #define SCARLETT2_USB_CONFIG_SAVE 6
891 #define SCARLETT2_USB_VOLUME_STATUS_OFFSET 0x31
892 #define SCARLETT2_USB_METER_LEVELS_GET_MAGIC 1
894 /* volume status is read together (matches scarlett2_config_items[1]) */
895 struct scarlett2_usb_volume_status {
896 /* dim/mute buttons */
897 u8 dim_mute[SCARLETT2_DIM_MUTE_COUNT];
901 /* software volume setting */
902 s16 sw_vol[SCARLETT2_ANALOGUE_MAX];
904 /* actual volume of output inc. dim (-18dB) */
905 s16 hw_vol[SCARLETT2_ANALOGUE_MAX];
907 /* internal mute buttons */
908 u8 mute_switch[SCARLETT2_ANALOGUE_MAX];
910 /* sw (0) or hw (1) controlled */
911 u8 sw_hw_switch[SCARLETT2_ANALOGUE_MAX];
915 /* front panel volume knob */
919 /* Configuration parameters that can be read and written */
921 SCARLETT2_CONFIG_DIM_MUTE = 0,
922 SCARLETT2_CONFIG_LINE_OUT_VOLUME = 1,
923 SCARLETT2_CONFIG_MUTE_SWITCH = 2,
924 SCARLETT2_CONFIG_SW_HW_SWITCH = 3,
925 SCARLETT2_CONFIG_LEVEL_SWITCH = 4,
926 SCARLETT2_CONFIG_PAD_SWITCH = 5,
927 SCARLETT2_CONFIG_MSD_SWITCH = 6,
928 SCARLETT2_CONFIG_AIR_SWITCH = 7,
929 SCARLETT2_CONFIG_PHANTOM_SWITCH = 8,
930 SCARLETT2_CONFIG_PHANTOM_PERSISTENCE = 9,
931 SCARLETT2_CONFIG_DIRECT_MONITOR = 10,
932 SCARLETT2_CONFIG_MONITOR_OTHER_SWITCH = 11,
933 SCARLETT2_CONFIG_MONITOR_OTHER_ENABLE = 12,
934 SCARLETT2_CONFIG_TALKBACK_MAP = 13,
935 SCARLETT2_CONFIG_COUNT = 14
938 /* Location, size, and activation command number for the configuration
939 * parameters. Size is in bits and may be 1, 8, or 16.
941 struct scarlett2_config {
947 /* scarlett2_config_items[0] is for devices without a mixer
948 * scarlett2_config_items[1] is for devices with a mixer
950 static const struct scarlett2_config
951 scarlett2_config_items[2][SCARLETT2_CONFIG_COUNT] =
953 /* Devices without a mixer (Solo and 2i2 Gen 3) */
955 [SCARLETT2_CONFIG_MSD_SWITCH] = {
956 .offset = 0x04, .size = 8, .activate = 6 },
958 [SCARLETT2_CONFIG_PHANTOM_PERSISTENCE] = {
959 .offset = 0x05, .size = 8, .activate = 6 },
961 [SCARLETT2_CONFIG_PHANTOM_SWITCH] = {
962 .offset = 0x06, .size = 8, .activate = 3 },
964 [SCARLETT2_CONFIG_DIRECT_MONITOR] = {
965 .offset = 0x07, .size = 8, .activate = 4 },
967 [SCARLETT2_CONFIG_LEVEL_SWITCH] = {
968 .offset = 0x08, .size = 1, .activate = 7 },
970 [SCARLETT2_CONFIG_AIR_SWITCH] = {
971 .offset = 0x09, .size = 1, .activate = 8 },
973 /* Devices with a mixer (Gen 2 and all other Gen 3) */
975 [SCARLETT2_CONFIG_DIM_MUTE] = {
976 .offset = 0x31, .size = 8, .activate = 2 },
978 [SCARLETT2_CONFIG_LINE_OUT_VOLUME] = {
979 .offset = 0x34, .size = 16, .activate = 1 },
981 [SCARLETT2_CONFIG_MUTE_SWITCH] = {
982 .offset = 0x5c, .size = 8, .activate = 1 },
984 [SCARLETT2_CONFIG_SW_HW_SWITCH] = {
985 .offset = 0x66, .size = 8, .activate = 3 },
987 [SCARLETT2_CONFIG_LEVEL_SWITCH] = {
988 .offset = 0x7c, .size = 8, .activate = 7 },
990 [SCARLETT2_CONFIG_PAD_SWITCH] = {
991 .offset = 0x84, .size = 8, .activate = 8 },
993 [SCARLETT2_CONFIG_AIR_SWITCH] = {
994 .offset = 0x8c, .size = 8, .activate = 8 },
996 [SCARLETT2_CONFIG_PHANTOM_SWITCH] = {
997 .offset = 0x9c, .size = 1, .activate = 8 },
999 [SCARLETT2_CONFIG_MSD_SWITCH] = {
1000 .offset = 0x9d, .size = 8, .activate = 6 },
1002 [SCARLETT2_CONFIG_PHANTOM_PERSISTENCE] = {
1003 .offset = 0x9e, .size = 8, .activate = 6 },
1005 [SCARLETT2_CONFIG_MONITOR_OTHER_SWITCH] = {
1006 .offset = 0x9f, .size = 1, .activate = 10 },
1008 [SCARLETT2_CONFIG_MONITOR_OTHER_ENABLE] = {
1009 .offset = 0xa0, .size = 1, .activate = 10 },
1011 [SCARLETT2_CONFIG_TALKBACK_MAP] = {
1012 .offset = 0xb0, .size = 16, .activate = 10 },
1015 /* proprietary request/response format */
1016 struct scarlett2_usb_packet {
1025 static void scarlett2_fill_request_header(struct scarlett2_data *private,
1026 struct scarlett2_usb_packet *req,
1027 u32 cmd, u16 req_size)
1029 /* sequence must go up by 1 for each request */
1030 u16 seq = private->scarlett2_seq++;
1032 req->cmd = cpu_to_le32(cmd);
1033 req->size = cpu_to_le16(req_size);
1034 req->seq = cpu_to_le16(seq);
1039 static int scarlett2_usb_tx(struct usb_device *dev, int interface,
1040 void *buf, u16 size)
1042 return snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1043 SCARLETT2_USB_CMD_REQ,
1044 USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT,
1045 0, interface, buf, size);
1048 static int scarlett2_usb_rx(struct usb_device *dev, int interface,
1049 u32 usb_req, void *buf, u16 size)
1051 return snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0),
1053 USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN,
1054 0, interface, buf, size);
1057 /* Send a proprietary format request to the Scarlett interface */
1058 static int scarlett2_usb(
1059 struct usb_mixer_interface *mixer, u32 cmd,
1060 void *req_data, u16 req_size, void *resp_data, u16 resp_size)
1062 struct scarlett2_data *private = mixer->private_data;
1063 struct usb_device *dev = mixer->chip->dev;
1064 u16 req_buf_size = sizeof(struct scarlett2_usb_packet) + req_size;
1065 u16 resp_buf_size = sizeof(struct scarlett2_usb_packet) + resp_size;
1066 struct scarlett2_usb_packet *req, *resp = NULL;
1069 req = kmalloc(req_buf_size, GFP_KERNEL);
1075 resp = kmalloc(resp_buf_size, GFP_KERNEL);
1081 mutex_lock(&private->usb_mutex);
1083 /* build request message and send it */
1085 scarlett2_fill_request_header(private, req, cmd, req_size);
1088 memcpy(req->data, req_data, req_size);
1090 err = scarlett2_usb_tx(dev, private->bInterfaceNumber,
1093 if (err != req_buf_size) {
1096 "Scarlett Gen 2/3 USB request result cmd %x was %d\n",
1102 /* send a second message to get the response */
1104 err = scarlett2_usb_rx(dev, private->bInterfaceNumber,
1105 SCARLETT2_USB_CMD_RESP,
1106 resp, resp_buf_size);
1108 /* validate the response */
1110 if (err != resp_buf_size) {
1113 "Scarlett Gen 2/3 USB response result cmd %x was %d "
1115 cmd, err, resp_buf_size);
1120 /* cmd/seq/size should match except when initialising
1121 * seq sent = 1, response = 0
1123 if (resp->cmd != req->cmd ||
1124 (resp->seq != req->seq &&
1125 (le16_to_cpu(req->seq) != 1 || resp->seq != 0)) ||
1126 resp_size != le16_to_cpu(resp->size) ||
1131 "Scarlett Gen 2/3 USB invalid response; "
1132 "cmd tx/rx %d/%d seq %d/%d size %d/%d "
1133 "error %d pad %d\n",
1134 le32_to_cpu(req->cmd), le32_to_cpu(resp->cmd),
1135 le16_to_cpu(req->seq), le16_to_cpu(resp->seq),
1136 resp_size, le16_to_cpu(resp->size),
1137 le32_to_cpu(resp->error),
1138 le32_to_cpu(resp->pad));
1143 if (resp_data && resp_size > 0)
1144 memcpy(resp_data, resp->data, resp_size);
1147 mutex_unlock(&private->usb_mutex);
1154 /* Send a USB message to get data; result placed in *buf */
1155 static int scarlett2_usb_get(
1156 struct usb_mixer_interface *mixer,
1157 int offset, void *buf, int size)
1164 req.offset = cpu_to_le32(offset);
1165 req.size = cpu_to_le32(size);
1166 return scarlett2_usb(mixer, SCARLETT2_USB_GET_DATA,
1167 &req, sizeof(req), buf, size);
1170 /* Send a USB message to get configuration parameters; result placed in *buf */
1171 static int scarlett2_usb_get_config(
1172 struct usb_mixer_interface *mixer,
1173 int config_item_num, int count, void *buf)
1175 struct scarlett2_data *private = mixer->private_data;
1176 const struct scarlett2_device_info *info = private->info;
1177 const struct scarlett2_config *config_item =
1178 &scarlett2_config_items[info->has_mixer][config_item_num];
1183 /* For byte-sized parameters, retrieve directly into buf */
1184 if (config_item->size >= 8) {
1185 size = config_item->size / 8 * count;
1186 err = scarlett2_usb_get(mixer, config_item->offset, buf, size);
1192 for (i = 0; i < count; i++, buf_16++)
1193 *buf_16 = le16_to_cpu(*(__le16 *)buf_16);
1198 /* For bit-sized parameters, retrieve into value */
1199 err = scarlett2_usb_get(mixer, config_item->offset, &value, 1);
1203 /* then unpack from value into buf[] */
1205 for (i = 0; i < 8 && i < count; i++, value >>= 1)
1206 *buf_8++ = value & 1;
1211 /* Send SCARLETT2_USB_DATA_CMD SCARLETT2_USB_CONFIG_SAVE */
1212 static void scarlett2_config_save(struct usb_mixer_interface *mixer)
1214 __le32 req = cpu_to_le32(SCARLETT2_USB_CONFIG_SAVE);
1216 scarlett2_usb(mixer, SCARLETT2_USB_DATA_CMD,
1221 /* Delayed work to save config */
1222 static void scarlett2_config_save_work(struct work_struct *work)
1224 struct scarlett2_data *private =
1225 container_of(work, struct scarlett2_data, work.work);
1227 scarlett2_config_save(private->mixer);
1230 /* Send a USB message to set a SCARLETT2_CONFIG_* parameter */
1231 static int scarlett2_usb_set_config(
1232 struct usb_mixer_interface *mixer,
1233 int config_item_num, int index, int value)
1235 struct scarlett2_data *private = mixer->private_data;
1236 const struct scarlett2_device_info *info = private->info;
1237 const struct scarlett2_config *config_item =
1238 &scarlett2_config_items[info->has_mixer][config_item_num];
1248 /* Cancel any pending NVRAM save */
1249 cancel_delayed_work_sync(&private->work);
1251 /* Convert config_item->size in bits to size in bytes and
1254 if (config_item->size >= 8) {
1255 size = config_item->size / 8;
1256 offset = config_item->offset + index * size;
1258 /* If updating a bit, retrieve the old value, set/clear the
1259 * bit as needed, and update value
1265 offset = config_item->offset;
1267 scarlett2_usb_get(mixer, offset, &tmp, 1);
1269 tmp |= (1 << index);
1271 tmp &= ~(1 << index);
1276 /* Send the configuration parameter data */
1277 req.offset = cpu_to_le32(offset);
1278 req.bytes = cpu_to_le32(size);
1279 req.value = cpu_to_le32(value);
1280 err = scarlett2_usb(mixer, SCARLETT2_USB_SET_DATA,
1281 &req, sizeof(u32) * 2 + size,
1286 /* Activate the change */
1287 req2 = cpu_to_le32(config_item->activate);
1288 err = scarlett2_usb(mixer, SCARLETT2_USB_DATA_CMD,
1289 &req2, sizeof(req2), NULL, 0);
1293 /* Schedule the change to be written to NVRAM */
1294 if (config_item->activate != SCARLETT2_USB_CONFIG_SAVE)
1295 schedule_delayed_work(&private->work, msecs_to_jiffies(2000));
1300 /* Send a USB message to get sync status; result placed in *sync */
1301 static int scarlett2_usb_get_sync_status(
1302 struct usb_mixer_interface *mixer,
1308 err = scarlett2_usb(mixer, SCARLETT2_USB_GET_SYNC,
1309 NULL, 0, &data, sizeof(data));
1317 /* Send a USB message to get volume status; result placed in *buf */
1318 static int scarlett2_usb_get_volume_status(
1319 struct usb_mixer_interface *mixer,
1320 struct scarlett2_usb_volume_status *buf)
1322 return scarlett2_usb_get(mixer, SCARLETT2_USB_VOLUME_STATUS_OFFSET,
1326 /* Send a USB message to get the volumes for all inputs of one mix
1327 * and put the values into private->mix[]
1329 static int scarlett2_usb_get_mix(struct usb_mixer_interface *mixer,
1332 struct scarlett2_data *private = mixer->private_data;
1333 const struct scarlett2_device_info *info = private->info;
1336 info->port_count[SCARLETT2_PORT_TYPE_MIX][SCARLETT2_PORT_OUT];
1344 __le16 data[SCARLETT2_INPUT_MIX_MAX];
1346 req.mix_num = cpu_to_le16(mix_num);
1347 req.count = cpu_to_le16(num_mixer_in);
1349 err = scarlett2_usb(mixer, SCARLETT2_USB_GET_MIX,
1351 data, num_mixer_in * sizeof(u16));
1355 for (i = 0, j = mix_num * num_mixer_in; i < num_mixer_in; i++, j++) {
1356 u16 mixer_value = le16_to_cpu(data[i]);
1358 for (k = 0; k < SCARLETT2_MIXER_VALUE_COUNT; k++)
1359 if (scarlett2_mixer_values[k] >= mixer_value)
1361 if (k == SCARLETT2_MIXER_VALUE_COUNT)
1362 k = SCARLETT2_MIXER_MAX_VALUE;
1363 private->mix[j] = k;
1369 /* Send a USB message to set the volumes for all inputs of one mix
1370 * (values obtained from private->mix[])
1372 static int scarlett2_usb_set_mix(struct usb_mixer_interface *mixer,
1375 struct scarlett2_data *private = mixer->private_data;
1376 const struct scarlett2_device_info *info = private->info;
1380 __le16 data[SCARLETT2_INPUT_MIX_MAX];
1385 info->port_count[SCARLETT2_PORT_TYPE_MIX][SCARLETT2_PORT_OUT];
1387 req.mix_num = cpu_to_le16(mix_num);
1389 for (i = 0, j = mix_num * num_mixer_in; i < num_mixer_in; i++, j++)
1390 req.data[i] = cpu_to_le16(
1391 scarlett2_mixer_values[private->mix[j]]
1394 return scarlett2_usb(mixer, SCARLETT2_USB_SET_MIX,
1395 &req, (num_mixer_in + 1) * sizeof(u16),
1399 /* Convert a port number index (per info->port_count) to a hardware ID */
1400 static u32 scarlett2_mux_src_num_to_id(
1401 const int port_count[][SCARLETT2_PORT_DIRNS], int num)
1406 port_type < SCARLETT2_PORT_TYPE_COUNT;
1408 if (num < port_count[port_type][SCARLETT2_PORT_IN])
1409 return scarlett2_ports[port_type].id | num;
1410 num -= port_count[port_type][SCARLETT2_PORT_IN];
1417 /* Convert a hardware ID to a port number index */
1418 static u32 scarlett2_mux_id_to_num(
1419 const int port_count[][SCARLETT2_PORT_DIRNS], int direction, u32 id)
1425 port_type < SCARLETT2_PORT_TYPE_COUNT;
1427 int base = scarlett2_ports[port_type].id;
1428 int count = port_count[port_type][direction];
1430 if (id >= base && id < base + count)
1431 return port_num + id - base;
1439 /* Convert one mux entry from the interface and load into private->mux[] */
1440 static void scarlett2_usb_populate_mux(struct scarlett2_data *private,
1443 const struct scarlett2_device_info *info = private->info;
1444 const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count;
1446 int dst_idx, src_idx;
1448 dst_idx = scarlett2_mux_id_to_num(port_count, SCARLETT2_PORT_OUT,
1453 if (dst_idx >= private->num_mux_dsts) {
1454 usb_audio_err(private->mixer->chip,
1455 "BUG: scarlett2_mux_id_to_num(%06x, OUT): %d >= %d",
1456 mux_entry, dst_idx, private->num_mux_dsts);
1460 src_idx = scarlett2_mux_id_to_num(port_count, SCARLETT2_PORT_IN,
1465 if (src_idx >= private->num_mux_srcs) {
1466 usb_audio_err(private->mixer->chip,
1467 "BUG: scarlett2_mux_id_to_num(%06x, IN): %d >= %d",
1468 mux_entry, src_idx, private->num_mux_srcs);
1472 private->mux[dst_idx] = src_idx;
1475 /* Send USB message to get mux inputs and then populate private->mux[] */
1476 static int scarlett2_usb_get_mux(struct usb_mixer_interface *mixer)
1478 struct scarlett2_data *private = mixer->private_data;
1479 int count = private->num_mux_dsts;
1487 __le32 data[SCARLETT2_MUX_MAX];
1489 private->mux_updated = 0;
1492 req.count = cpu_to_le16(count);
1494 err = scarlett2_usb(mixer, SCARLETT2_USB_GET_MUX,
1496 data, count * sizeof(u32));
1500 for (i = 0; i < count; i++)
1501 scarlett2_usb_populate_mux(private, le32_to_cpu(data[i]));
1506 /* Send USB messages to set mux inputs */
1507 static int scarlett2_usb_set_mux(struct usb_mixer_interface *mixer)
1509 struct scarlett2_data *private = mixer->private_data;
1510 const struct scarlett2_device_info *info = private->info;
1511 const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count;
1517 __le32 data[SCARLETT2_MUX_MAX];
1522 /* set mux settings for each rate */
1523 for (table = 0; table < SCARLETT2_MUX_TABLES; table++) {
1524 const struct scarlett2_mux_entry *entry;
1526 /* i counts over the output array */
1529 req.num = cpu_to_le16(table);
1531 /* loop through each entry */
1532 for (entry = info->mux_assignment[table];
1536 int port_type = entry->port_type;
1537 int port_idx = entry->start;
1538 int mux_idx = scarlett2_get_port_start_num(port_count,
1539 SCARLETT2_PORT_OUT, port_type) + port_idx;
1540 int dst_id = scarlett2_ports[port_type].id + port_idx;
1544 for (j = 0; j < entry->count; j++)
1549 /* Non-empty mux slots use the lower 12 bits
1550 * for the destination and next 12 bits for
1553 for (j = 0; j < entry->count; j++) {
1554 int src_id = scarlett2_mux_src_num_to_id(
1555 port_count, private->mux[mux_idx++]);
1556 req.data[i++] = cpu_to_le32(dst_id |
1562 err = scarlett2_usb(mixer, SCARLETT2_USB_SET_MUX,
1563 &req, (i + 1) * sizeof(u32),
1572 /* Send USB message to get meter levels */
1573 static int scarlett2_usb_get_meter_levels(struct usb_mixer_interface *mixer,
1574 u16 num_meters, u16 *levels)
1581 u32 resp[SCARLETT2_MAX_METERS];
1585 req.num_meters = cpu_to_le16(num_meters);
1586 req.magic = cpu_to_le32(SCARLETT2_USB_METER_LEVELS_GET_MAGIC);
1587 err = scarlett2_usb(mixer, SCARLETT2_USB_GET_METER,
1588 &req, sizeof(req), resp, num_meters * sizeof(u32));
1592 /* copy, convert to u16 */
1593 for (i = 0; i < num_meters; i++)
1594 levels[i] = resp[i];
1599 /*** Control Functions ***/
1601 /* helper function to create a new control */
1602 static int scarlett2_add_new_ctl(struct usb_mixer_interface *mixer,
1603 const struct snd_kcontrol_new *ncontrol,
1604 int index, int channels, const char *name,
1605 struct snd_kcontrol **kctl_return)
1607 struct snd_kcontrol *kctl;
1608 struct usb_mixer_elem_info *elem;
1611 elem = kzalloc(sizeof(*elem), GFP_KERNEL);
1615 /* We set USB_MIXER_BESPOKEN type, so that the core USB mixer code
1616 * ignores them for resume and other operations.
1617 * Also, the head.id field is set to 0, as we don't use this field.
1619 elem->head.mixer = mixer;
1620 elem->control = index;
1622 elem->channels = channels;
1623 elem->val_type = USB_MIXER_BESPOKEN;
1625 kctl = snd_ctl_new1(ncontrol, elem);
1630 kctl->private_free = snd_usb_mixer_elem_free;
1632 strscpy(kctl->id.name, name, sizeof(kctl->id.name));
1634 err = snd_usb_mixer_add_control(&elem->head, kctl);
1639 *kctl_return = kctl;
1644 /*** Sync Control ***/
1646 /* Update sync control after receiving notification that the status
1649 static int scarlett2_update_sync(struct usb_mixer_interface *mixer)
1651 struct scarlett2_data *private = mixer->private_data;
1653 private->sync_updated = 0;
1654 return scarlett2_usb_get_sync_status(mixer, &private->sync);
1657 static int scarlett2_sync_ctl_info(struct snd_kcontrol *kctl,
1658 struct snd_ctl_elem_info *uinfo)
1660 static const char *texts[2] = {
1661 "Unlocked", "Locked"
1663 return snd_ctl_enum_info(uinfo, 1, 2, texts);
1666 static int scarlett2_sync_ctl_get(struct snd_kcontrol *kctl,
1667 struct snd_ctl_elem_value *ucontrol)
1669 struct usb_mixer_elem_info *elem = kctl->private_data;
1670 struct usb_mixer_interface *mixer = elem->head.mixer;
1671 struct scarlett2_data *private = mixer->private_data;
1673 mutex_lock(&private->data_mutex);
1674 if (private->sync_updated)
1675 scarlett2_update_sync(mixer);
1676 ucontrol->value.enumerated.item[0] = private->sync;
1677 mutex_unlock(&private->data_mutex);
1682 static const struct snd_kcontrol_new scarlett2_sync_ctl = {
1683 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1684 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1686 .info = scarlett2_sync_ctl_info,
1687 .get = scarlett2_sync_ctl_get
1690 static int scarlett2_add_sync_ctl(struct usb_mixer_interface *mixer)
1692 struct scarlett2_data *private = mixer->private_data;
1694 /* devices without a mixer also don't support reporting sync status */
1695 if (!private->info->has_mixer)
1698 return scarlett2_add_new_ctl(mixer, &scarlett2_sync_ctl,
1699 0, 1, "Sync Status", &private->sync_ctl);
1702 /*** Analogue Line Out Volume Controls ***/
1704 /* Update hardware volume controls after receiving notification that
1707 static int scarlett2_update_volumes(struct usb_mixer_interface *mixer)
1709 struct scarlett2_data *private = mixer->private_data;
1710 const struct scarlett2_device_info *info = private->info;
1711 const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count;
1712 struct scarlett2_usb_volume_status volume_status;
1714 port_count[SCARLETT2_PORT_TYPE_ANALOGUE][SCARLETT2_PORT_OUT];
1718 private->vol_updated = 0;
1720 err = scarlett2_usb_get_volume_status(mixer, &volume_status);
1724 private->master_vol = clamp(
1725 volume_status.master_vol + SCARLETT2_VOLUME_BIAS,
1726 0, SCARLETT2_VOLUME_BIAS);
1728 if (info->line_out_hw_vol)
1729 for (i = 0; i < SCARLETT2_DIM_MUTE_COUNT; i++)
1730 private->dim_mute[i] = !!volume_status.dim_mute[i];
1732 mute = private->dim_mute[SCARLETT2_BUTTON_MUTE];
1734 for (i = 0; i < num_line_out; i++)
1735 if (private->vol_sw_hw_switch[i]) {
1736 private->vol[i] = private->master_vol;
1737 private->mute_switch[i] = mute;
1743 static int scarlett2_volume_ctl_info(struct snd_kcontrol *kctl,
1744 struct snd_ctl_elem_info *uinfo)
1746 struct usb_mixer_elem_info *elem = kctl->private_data;
1748 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1749 uinfo->count = elem->channels;
1750 uinfo->value.integer.min = 0;
1751 uinfo->value.integer.max = SCARLETT2_VOLUME_BIAS;
1752 uinfo->value.integer.step = 1;
1756 static int scarlett2_master_volume_ctl_get(struct snd_kcontrol *kctl,
1757 struct snd_ctl_elem_value *ucontrol)
1759 struct usb_mixer_elem_info *elem = kctl->private_data;
1760 struct usb_mixer_interface *mixer = elem->head.mixer;
1761 struct scarlett2_data *private = mixer->private_data;
1763 mutex_lock(&private->data_mutex);
1764 if (private->vol_updated)
1765 scarlett2_update_volumes(mixer);
1766 mutex_unlock(&private->data_mutex);
1768 ucontrol->value.integer.value[0] = private->master_vol;
1772 static int line_out_remap(struct scarlett2_data *private, int index)
1774 const struct scarlett2_device_info *info = private->info;
1776 if (!info->line_out_remap_enable)
1778 return info->line_out_remap[index];
1781 static int scarlett2_volume_ctl_get(struct snd_kcontrol *kctl,
1782 struct snd_ctl_elem_value *ucontrol)
1784 struct usb_mixer_elem_info *elem = kctl->private_data;
1785 struct usb_mixer_interface *mixer = elem->head.mixer;
1786 struct scarlett2_data *private = mixer->private_data;
1787 int index = line_out_remap(private, elem->control);
1789 mutex_lock(&private->data_mutex);
1790 if (private->vol_updated)
1791 scarlett2_update_volumes(mixer);
1792 mutex_unlock(&private->data_mutex);
1794 ucontrol->value.integer.value[0] = private->vol[index];
1798 static int scarlett2_volume_ctl_put(struct snd_kcontrol *kctl,
1799 struct snd_ctl_elem_value *ucontrol)
1801 struct usb_mixer_elem_info *elem = kctl->private_data;
1802 struct usb_mixer_interface *mixer = elem->head.mixer;
1803 struct scarlett2_data *private = mixer->private_data;
1804 int index = line_out_remap(private, elem->control);
1805 int oval, val, err = 0;
1807 mutex_lock(&private->data_mutex);
1809 oval = private->vol[index];
1810 val = ucontrol->value.integer.value[0];
1815 private->vol[index] = val;
1816 err = scarlett2_usb_set_config(mixer, SCARLETT2_CONFIG_LINE_OUT_VOLUME,
1817 index, val - SCARLETT2_VOLUME_BIAS);
1822 mutex_unlock(&private->data_mutex);
1826 static const DECLARE_TLV_DB_MINMAX(
1827 db_scale_scarlett2_gain, -SCARLETT2_VOLUME_BIAS * 100, 0
1830 static const struct snd_kcontrol_new scarlett2_master_volume_ctl = {
1831 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1832 .access = SNDRV_CTL_ELEM_ACCESS_READ |
1833 SNDRV_CTL_ELEM_ACCESS_TLV_READ,
1835 .info = scarlett2_volume_ctl_info,
1836 .get = scarlett2_master_volume_ctl_get,
1837 .private_value = 0, /* max value */
1838 .tlv = { .p = db_scale_scarlett2_gain }
1841 static const struct snd_kcontrol_new scarlett2_line_out_volume_ctl = {
1842 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1843 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
1844 SNDRV_CTL_ELEM_ACCESS_TLV_READ,
1846 .info = scarlett2_volume_ctl_info,
1847 .get = scarlett2_volume_ctl_get,
1848 .put = scarlett2_volume_ctl_put,
1849 .private_value = 0, /* max value */
1850 .tlv = { .p = db_scale_scarlett2_gain }
1853 /*** Mute Switch Controls ***/
1855 static int scarlett2_mute_ctl_get(struct snd_kcontrol *kctl,
1856 struct snd_ctl_elem_value *ucontrol)
1858 struct usb_mixer_elem_info *elem = kctl->private_data;
1859 struct usb_mixer_interface *mixer = elem->head.mixer;
1860 struct scarlett2_data *private = mixer->private_data;
1861 int index = line_out_remap(private, elem->control);
1863 mutex_lock(&private->data_mutex);
1864 if (private->vol_updated)
1865 scarlett2_update_volumes(mixer);
1866 mutex_unlock(&private->data_mutex);
1868 ucontrol->value.integer.value[0] = private->mute_switch[index];
1872 static int scarlett2_mute_ctl_put(struct snd_kcontrol *kctl,
1873 struct snd_ctl_elem_value *ucontrol)
1875 struct usb_mixer_elem_info *elem = kctl->private_data;
1876 struct usb_mixer_interface *mixer = elem->head.mixer;
1877 struct scarlett2_data *private = mixer->private_data;
1878 int index = line_out_remap(private, elem->control);
1879 int oval, val, err = 0;
1881 mutex_lock(&private->data_mutex);
1883 oval = private->mute_switch[index];
1884 val = !!ucontrol->value.integer.value[0];
1889 private->mute_switch[index] = val;
1891 /* Send mute change to the device */
1892 err = scarlett2_usb_set_config(mixer, SCARLETT2_CONFIG_MUTE_SWITCH,
1898 mutex_unlock(&private->data_mutex);
1902 static const struct snd_kcontrol_new scarlett2_mute_ctl = {
1903 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1905 .info = snd_ctl_boolean_mono_info,
1906 .get = scarlett2_mute_ctl_get,
1907 .put = scarlett2_mute_ctl_put,
1910 /*** HW/SW Volume Switch Controls ***/
1912 static void scarlett2_sw_hw_ctl_ro(struct scarlett2_data *private, int index)
1914 private->sw_hw_ctls[index]->vd[0].access &=
1915 ~SNDRV_CTL_ELEM_ACCESS_WRITE;
1918 static void scarlett2_sw_hw_ctl_rw(struct scarlett2_data *private, int index)
1920 private->sw_hw_ctls[index]->vd[0].access |=
1921 SNDRV_CTL_ELEM_ACCESS_WRITE;
1924 static int scarlett2_sw_hw_enum_ctl_info(struct snd_kcontrol *kctl,
1925 struct snd_ctl_elem_info *uinfo)
1927 static const char *const values[2] = {
1931 return snd_ctl_enum_info(uinfo, 1, 2, values);
1934 static int scarlett2_sw_hw_enum_ctl_get(struct snd_kcontrol *kctl,
1935 struct snd_ctl_elem_value *ucontrol)
1937 struct usb_mixer_elem_info *elem = kctl->private_data;
1938 struct scarlett2_data *private = elem->head.mixer->private_data;
1939 int index = line_out_remap(private, elem->control);
1941 ucontrol->value.enumerated.item[0] = private->vol_sw_hw_switch[index];
1945 static void scarlett2_vol_ctl_set_writable(struct usb_mixer_interface *mixer,
1946 int index, int value)
1948 struct scarlett2_data *private = mixer->private_data;
1949 struct snd_card *card = mixer->chip->card;
1951 /* Set/Clear write bits */
1953 private->vol_ctls[index]->vd[0].access |=
1954 SNDRV_CTL_ELEM_ACCESS_WRITE;
1955 private->mute_ctls[index]->vd[0].access |=
1956 SNDRV_CTL_ELEM_ACCESS_WRITE;
1958 private->vol_ctls[index]->vd[0].access &=
1959 ~SNDRV_CTL_ELEM_ACCESS_WRITE;
1960 private->mute_ctls[index]->vd[0].access &=
1961 ~SNDRV_CTL_ELEM_ACCESS_WRITE;
1964 /* Notify of write bit and possible value change */
1965 snd_ctl_notify(card,
1966 SNDRV_CTL_EVENT_MASK_VALUE | SNDRV_CTL_EVENT_MASK_INFO,
1967 &private->vol_ctls[index]->id);
1968 snd_ctl_notify(card,
1969 SNDRV_CTL_EVENT_MASK_VALUE | SNDRV_CTL_EVENT_MASK_INFO,
1970 &private->mute_ctls[index]->id);
1973 static int scarlett2_sw_hw_change(struct usb_mixer_interface *mixer,
1974 int ctl_index, int val)
1976 struct scarlett2_data *private = mixer->private_data;
1977 int index = line_out_remap(private, ctl_index);
1980 private->vol_sw_hw_switch[index] = val;
1982 /* Change access mode to RO (hardware controlled volume)
1983 * or RW (software controlled volume)
1985 scarlett2_vol_ctl_set_writable(mixer, ctl_index, !val);
1987 /* Reset volume/mute to master volume/mute */
1988 private->vol[index] = private->master_vol;
1989 private->mute_switch[index] = private->dim_mute[SCARLETT2_BUTTON_MUTE];
1991 /* Set SW volume to current HW volume */
1992 err = scarlett2_usb_set_config(
1993 mixer, SCARLETT2_CONFIG_LINE_OUT_VOLUME,
1994 index, private->master_vol - SCARLETT2_VOLUME_BIAS);
1998 /* Set SW mute to current HW mute */
1999 err = scarlett2_usb_set_config(
2000 mixer, SCARLETT2_CONFIG_MUTE_SWITCH,
2001 index, private->dim_mute[SCARLETT2_BUTTON_MUTE]);
2005 /* Send SW/HW switch change to the device */
2006 return scarlett2_usb_set_config(mixer, SCARLETT2_CONFIG_SW_HW_SWITCH,
2010 static int scarlett2_sw_hw_enum_ctl_put(struct snd_kcontrol *kctl,
2011 struct snd_ctl_elem_value *ucontrol)
2013 struct usb_mixer_elem_info *elem = kctl->private_data;
2014 struct usb_mixer_interface *mixer = elem->head.mixer;
2015 struct scarlett2_data *private = mixer->private_data;
2016 int ctl_index = elem->control;
2017 int index = line_out_remap(private, ctl_index);
2018 int oval, val, err = 0;
2020 mutex_lock(&private->data_mutex);
2022 oval = private->vol_sw_hw_switch[index];
2023 val = !!ucontrol->value.enumerated.item[0];
2028 err = scarlett2_sw_hw_change(mixer, ctl_index, val);
2033 mutex_unlock(&private->data_mutex);
2037 static const struct snd_kcontrol_new scarlett2_sw_hw_enum_ctl = {
2038 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2040 .info = scarlett2_sw_hw_enum_ctl_info,
2041 .get = scarlett2_sw_hw_enum_ctl_get,
2042 .put = scarlett2_sw_hw_enum_ctl_put,
2045 /*** Line Level/Instrument Level Switch Controls ***/
2047 static int scarlett2_update_input_other(struct usb_mixer_interface *mixer)
2049 struct scarlett2_data *private = mixer->private_data;
2050 const struct scarlett2_device_info *info = private->info;
2052 private->input_other_updated = 0;
2054 if (info->level_input_count) {
2055 int err = scarlett2_usb_get_config(
2056 mixer, SCARLETT2_CONFIG_LEVEL_SWITCH,
2057 info->level_input_count + info->level_input_first,
2058 private->level_switch);
2063 if (info->pad_input_count) {
2064 int err = scarlett2_usb_get_config(
2065 mixer, SCARLETT2_CONFIG_PAD_SWITCH,
2066 info->pad_input_count, private->pad_switch);
2071 if (info->air_input_count) {
2072 int err = scarlett2_usb_get_config(
2073 mixer, SCARLETT2_CONFIG_AIR_SWITCH,
2074 info->air_input_count, private->air_switch);
2079 if (info->phantom_count) {
2080 int err = scarlett2_usb_get_config(
2081 mixer, SCARLETT2_CONFIG_PHANTOM_SWITCH,
2082 info->phantom_count, private->phantom_switch);
2086 err = scarlett2_usb_get_config(
2087 mixer, SCARLETT2_CONFIG_PHANTOM_PERSISTENCE,
2088 1, &private->phantom_persistence);
2096 static int scarlett2_level_enum_ctl_info(struct snd_kcontrol *kctl,
2097 struct snd_ctl_elem_info *uinfo)
2099 static const char *const values[2] = {
2103 return snd_ctl_enum_info(uinfo, 1, 2, values);
2106 static int scarlett2_level_enum_ctl_get(struct snd_kcontrol *kctl,
2107 struct snd_ctl_elem_value *ucontrol)
2109 struct usb_mixer_elem_info *elem = kctl->private_data;
2110 struct usb_mixer_interface *mixer = elem->head.mixer;
2111 struct scarlett2_data *private = mixer->private_data;
2112 const struct scarlett2_device_info *info = private->info;
2114 int index = elem->control + info->level_input_first;
2116 mutex_lock(&private->data_mutex);
2117 if (private->input_other_updated)
2118 scarlett2_update_input_other(mixer);
2119 ucontrol->value.enumerated.item[0] = private->level_switch[index];
2120 mutex_unlock(&private->data_mutex);
2125 static int scarlett2_level_enum_ctl_put(struct snd_kcontrol *kctl,
2126 struct snd_ctl_elem_value *ucontrol)
2128 struct usb_mixer_elem_info *elem = kctl->private_data;
2129 struct usb_mixer_interface *mixer = elem->head.mixer;
2130 struct scarlett2_data *private = mixer->private_data;
2131 const struct scarlett2_device_info *info = private->info;
2133 int index = elem->control + info->level_input_first;
2134 int oval, val, err = 0;
2136 mutex_lock(&private->data_mutex);
2138 oval = private->level_switch[index];
2139 val = !!ucontrol->value.enumerated.item[0];
2144 private->level_switch[index] = val;
2146 /* Send switch change to the device */
2147 err = scarlett2_usb_set_config(mixer, SCARLETT2_CONFIG_LEVEL_SWITCH,
2153 mutex_unlock(&private->data_mutex);
2157 static const struct snd_kcontrol_new scarlett2_level_enum_ctl = {
2158 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2160 .info = scarlett2_level_enum_ctl_info,
2161 .get = scarlett2_level_enum_ctl_get,
2162 .put = scarlett2_level_enum_ctl_put,
2165 /*** Pad Switch Controls ***/
2167 static int scarlett2_pad_ctl_get(struct snd_kcontrol *kctl,
2168 struct snd_ctl_elem_value *ucontrol)
2170 struct usb_mixer_elem_info *elem = kctl->private_data;
2171 struct usb_mixer_interface *mixer = elem->head.mixer;
2172 struct scarlett2_data *private = mixer->private_data;
2174 mutex_lock(&private->data_mutex);
2175 if (private->input_other_updated)
2176 scarlett2_update_input_other(mixer);
2177 ucontrol->value.integer.value[0] =
2178 private->pad_switch[elem->control];
2179 mutex_unlock(&private->data_mutex);
2184 static int scarlett2_pad_ctl_put(struct snd_kcontrol *kctl,
2185 struct snd_ctl_elem_value *ucontrol)
2187 struct usb_mixer_elem_info *elem = kctl->private_data;
2188 struct usb_mixer_interface *mixer = elem->head.mixer;
2189 struct scarlett2_data *private = mixer->private_data;
2191 int index = elem->control;
2192 int oval, val, err = 0;
2194 mutex_lock(&private->data_mutex);
2196 oval = private->pad_switch[index];
2197 val = !!ucontrol->value.integer.value[0];
2202 private->pad_switch[index] = val;
2204 /* Send switch change to the device */
2205 err = scarlett2_usb_set_config(mixer, SCARLETT2_CONFIG_PAD_SWITCH,
2211 mutex_unlock(&private->data_mutex);
2215 static const struct snd_kcontrol_new scarlett2_pad_ctl = {
2216 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2218 .info = snd_ctl_boolean_mono_info,
2219 .get = scarlett2_pad_ctl_get,
2220 .put = scarlett2_pad_ctl_put,
2223 /*** Air Switch Controls ***/
2225 static int scarlett2_air_ctl_get(struct snd_kcontrol *kctl,
2226 struct snd_ctl_elem_value *ucontrol)
2228 struct usb_mixer_elem_info *elem = kctl->private_data;
2229 struct usb_mixer_interface *mixer = elem->head.mixer;
2230 struct scarlett2_data *private = mixer->private_data;
2232 mutex_lock(&private->data_mutex);
2233 if (private->input_other_updated)
2234 scarlett2_update_input_other(mixer);
2235 ucontrol->value.integer.value[0] = private->air_switch[elem->control];
2236 mutex_unlock(&private->data_mutex);
2241 static int scarlett2_air_ctl_put(struct snd_kcontrol *kctl,
2242 struct snd_ctl_elem_value *ucontrol)
2244 struct usb_mixer_elem_info *elem = kctl->private_data;
2245 struct usb_mixer_interface *mixer = elem->head.mixer;
2246 struct scarlett2_data *private = mixer->private_data;
2248 int index = elem->control;
2249 int oval, val, err = 0;
2251 mutex_lock(&private->data_mutex);
2253 oval = private->air_switch[index];
2254 val = !!ucontrol->value.integer.value[0];
2259 private->air_switch[index] = val;
2261 /* Send switch change to the device */
2262 err = scarlett2_usb_set_config(mixer, SCARLETT2_CONFIG_AIR_SWITCH,
2268 mutex_unlock(&private->data_mutex);
2272 static const struct snd_kcontrol_new scarlett2_air_ctl = {
2273 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2275 .info = snd_ctl_boolean_mono_info,
2276 .get = scarlett2_air_ctl_get,
2277 .put = scarlett2_air_ctl_put,
2280 /*** Phantom Switch Controls ***/
2282 static int scarlett2_phantom_ctl_get(struct snd_kcontrol *kctl,
2283 struct snd_ctl_elem_value *ucontrol)
2285 struct usb_mixer_elem_info *elem = kctl->private_data;
2286 struct usb_mixer_interface *mixer = elem->head.mixer;
2287 struct scarlett2_data *private = mixer->private_data;
2289 mutex_lock(&private->data_mutex);
2290 if (private->input_other_updated)
2291 scarlett2_update_input_other(mixer);
2292 ucontrol->value.integer.value[0] =
2293 private->phantom_switch[elem->control];
2294 mutex_unlock(&private->data_mutex);
2299 static int scarlett2_phantom_ctl_put(struct snd_kcontrol *kctl,
2300 struct snd_ctl_elem_value *ucontrol)
2302 struct usb_mixer_elem_info *elem = kctl->private_data;
2303 struct usb_mixer_interface *mixer = elem->head.mixer;
2304 struct scarlett2_data *private = mixer->private_data;
2306 int index = elem->control;
2307 int oval, val, err = 0;
2309 mutex_lock(&private->data_mutex);
2311 oval = private->phantom_switch[index];
2312 val = !!ucontrol->value.integer.value[0];
2317 private->phantom_switch[index] = val;
2319 /* Send switch change to the device */
2320 err = scarlett2_usb_set_config(mixer, SCARLETT2_CONFIG_PHANTOM_SWITCH,
2326 mutex_unlock(&private->data_mutex);
2330 static const struct snd_kcontrol_new scarlett2_phantom_ctl = {
2331 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2333 .info = snd_ctl_boolean_mono_info,
2334 .get = scarlett2_phantom_ctl_get,
2335 .put = scarlett2_phantom_ctl_put,
2338 /*** Phantom Persistence Control ***/
2340 static int scarlett2_phantom_persistence_ctl_get(
2341 struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol)
2343 struct usb_mixer_elem_info *elem = kctl->private_data;
2344 struct scarlett2_data *private = elem->head.mixer->private_data;
2346 ucontrol->value.integer.value[0] = private->phantom_persistence;
2350 static int scarlett2_phantom_persistence_ctl_put(
2351 struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol)
2353 struct usb_mixer_elem_info *elem = kctl->private_data;
2354 struct usb_mixer_interface *mixer = elem->head.mixer;
2355 struct scarlett2_data *private = mixer->private_data;
2357 int index = elem->control;
2358 int oval, val, err = 0;
2360 mutex_lock(&private->data_mutex);
2362 oval = private->phantom_persistence;
2363 val = !!ucontrol->value.integer.value[0];
2368 private->phantom_persistence = val;
2370 /* Send switch change to the device */
2371 err = scarlett2_usb_set_config(
2372 mixer, SCARLETT2_CONFIG_PHANTOM_PERSISTENCE, index, val);
2377 mutex_unlock(&private->data_mutex);
2381 static const struct snd_kcontrol_new scarlett2_phantom_persistence_ctl = {
2382 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2384 .info = snd_ctl_boolean_mono_info,
2385 .get = scarlett2_phantom_persistence_ctl_get,
2386 .put = scarlett2_phantom_persistence_ctl_put,
2389 /*** Direct Monitor Control ***/
2391 static int scarlett2_update_monitor_other(struct usb_mixer_interface *mixer)
2393 struct scarlett2_data *private = mixer->private_data;
2394 const struct scarlett2_device_info *info = private->info;
2397 /* monitor_other_enable[0] enables speaker switching
2398 * monitor_other_enable[1] enables talkback
2400 u8 monitor_other_enable[2];
2402 /* monitor_other_switch[0] activates the alternate speakers
2403 * monitor_other_switch[1] activates talkback
2405 u8 monitor_other_switch[2];
2407 private->monitor_other_updated = 0;
2409 if (info->direct_monitor)
2410 return scarlett2_usb_get_config(
2411 mixer, SCARLETT2_CONFIG_DIRECT_MONITOR,
2412 1, &private->direct_monitor_switch);
2414 /* if it doesn't do speaker switching then it also doesn't do
2417 if (!info->has_speaker_switching)
2420 err = scarlett2_usb_get_config(
2421 mixer, SCARLETT2_CONFIG_MONITOR_OTHER_ENABLE,
2422 2, monitor_other_enable);
2426 err = scarlett2_usb_get_config(
2427 mixer, SCARLETT2_CONFIG_MONITOR_OTHER_SWITCH,
2428 2, monitor_other_switch);
2432 if (!monitor_other_enable[0])
2433 private->speaker_switching_switch = 0;
2435 private->speaker_switching_switch = monitor_other_switch[0] + 1;
2437 if (info->has_talkback) {
2438 const int (*port_count)[SCARLETT2_PORT_DIRNS] =
2441 port_count[SCARLETT2_PORT_TYPE_MIX][SCARLETT2_PORT_IN];
2445 if (!monitor_other_enable[1])
2446 private->talkback_switch = 0;
2448 private->talkback_switch = monitor_other_switch[1] + 1;
2450 err = scarlett2_usb_get_config(mixer,
2451 SCARLETT2_CONFIG_TALKBACK_MAP,
2455 for (i = 0; i < num_mixes; i++, bitmap >>= 1)
2456 private->talkback_map[i] = bitmap & 1;
2462 static int scarlett2_direct_monitor_ctl_get(
2463 struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol)
2465 struct usb_mixer_elem_info *elem = kctl->private_data;
2466 struct usb_mixer_interface *mixer = elem->head.mixer;
2467 struct scarlett2_data *private = elem->head.mixer->private_data;
2469 mutex_lock(&private->data_mutex);
2470 if (private->monitor_other_updated)
2471 scarlett2_update_monitor_other(mixer);
2472 ucontrol->value.enumerated.item[0] = private->direct_monitor_switch;
2473 mutex_unlock(&private->data_mutex);
2478 static int scarlett2_direct_monitor_ctl_put(
2479 struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol)
2481 struct usb_mixer_elem_info *elem = kctl->private_data;
2482 struct usb_mixer_interface *mixer = elem->head.mixer;
2483 struct scarlett2_data *private = mixer->private_data;
2485 int index = elem->control;
2486 int oval, val, err = 0;
2488 mutex_lock(&private->data_mutex);
2490 oval = private->direct_monitor_switch;
2491 val = min(ucontrol->value.enumerated.item[0], 2U);
2496 private->direct_monitor_switch = val;
2498 /* Send switch change to the device */
2499 err = scarlett2_usb_set_config(
2500 mixer, SCARLETT2_CONFIG_DIRECT_MONITOR, index, val);
2505 mutex_unlock(&private->data_mutex);
2509 static int scarlett2_direct_monitor_stereo_enum_ctl_info(
2510 struct snd_kcontrol *kctl, struct snd_ctl_elem_info *uinfo)
2512 static const char *const values[3] = {
2513 "Off", "Mono", "Stereo"
2516 return snd_ctl_enum_info(uinfo, 1, 3, values);
2519 /* Direct Monitor for Solo is mono-only and only needs a boolean control
2520 * Direct Monitor for 2i2 is selectable between Off/Mono/Stereo
2522 static const struct snd_kcontrol_new scarlett2_direct_monitor_ctl[2] = {
2524 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2526 .info = snd_ctl_boolean_mono_info,
2527 .get = scarlett2_direct_monitor_ctl_get,
2528 .put = scarlett2_direct_monitor_ctl_put,
2531 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2533 .info = scarlett2_direct_monitor_stereo_enum_ctl_info,
2534 .get = scarlett2_direct_monitor_ctl_get,
2535 .put = scarlett2_direct_monitor_ctl_put,
2539 static int scarlett2_add_direct_monitor_ctl(struct usb_mixer_interface *mixer)
2541 struct scarlett2_data *private = mixer->private_data;
2542 const struct scarlett2_device_info *info = private->info;
2545 if (!info->direct_monitor)
2548 s = info->direct_monitor == 1
2549 ? "Direct Monitor Playback Switch"
2550 : "Direct Monitor Playback Enum";
2552 return scarlett2_add_new_ctl(
2553 mixer, &scarlett2_direct_monitor_ctl[info->direct_monitor - 1],
2554 0, 1, s, &private->direct_monitor_ctl);
2557 /*** Speaker Switching Control ***/
2559 static int scarlett2_speaker_switch_enum_ctl_info(
2560 struct snd_kcontrol *kctl, struct snd_ctl_elem_info *uinfo)
2562 static const char *const values[3] = {
2563 "Off", "Main", "Alt"
2566 return snd_ctl_enum_info(uinfo, 1, 3, values);
2569 static int scarlett2_speaker_switch_enum_ctl_get(
2570 struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol)
2572 struct usb_mixer_elem_info *elem = kctl->private_data;
2573 struct usb_mixer_interface *mixer = elem->head.mixer;
2574 struct scarlett2_data *private = mixer->private_data;
2576 mutex_lock(&private->data_mutex);
2577 if (private->monitor_other_updated)
2578 scarlett2_update_monitor_other(mixer);
2579 ucontrol->value.enumerated.item[0] = private->speaker_switching_switch;
2580 mutex_unlock(&private->data_mutex);
2585 /* when speaker switching gets enabled, switch the main/alt speakers
2586 * to HW volume and disable those controls
2588 static int scarlett2_speaker_switch_enable(struct usb_mixer_interface *mixer)
2590 struct snd_card *card = mixer->chip->card;
2591 struct scarlett2_data *private = mixer->private_data;
2594 for (i = 0; i < 4; i++) {
2595 int index = line_out_remap(private, i);
2597 /* switch the main/alt speakers to HW volume */
2598 if (!private->vol_sw_hw_switch[index]) {
2599 err = scarlett2_sw_hw_change(private->mixer, i, 1);
2604 /* disable the line out SW/HW switch */
2605 scarlett2_sw_hw_ctl_ro(private, i);
2606 snd_ctl_notify(card,
2607 SNDRV_CTL_EVENT_MASK_VALUE |
2608 SNDRV_CTL_EVENT_MASK_INFO,
2609 &private->sw_hw_ctls[i]->id);
2612 /* when the next monitor-other notify comes in, update the mux
2615 private->speaker_switching_switched = 1;
2620 /* when speaker switching gets disabled, reenable the hw/sw controls
2621 * and invalidate the routing
2623 static void scarlett2_speaker_switch_disable(struct usb_mixer_interface *mixer)
2625 struct snd_card *card = mixer->chip->card;
2626 struct scarlett2_data *private = mixer->private_data;
2629 /* enable the line out SW/HW switch */
2630 for (i = 0; i < 4; i++) {
2631 scarlett2_sw_hw_ctl_rw(private, i);
2632 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_INFO,
2633 &private->sw_hw_ctls[i]->id);
2636 /* when the next monitor-other notify comes in, update the mux
2639 private->speaker_switching_switched = 1;
2642 static int scarlett2_speaker_switch_enum_ctl_put(
2643 struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol)
2645 struct usb_mixer_elem_info *elem = kctl->private_data;
2646 struct usb_mixer_interface *mixer = elem->head.mixer;
2647 struct scarlett2_data *private = mixer->private_data;
2649 int oval, val, err = 0;
2651 mutex_lock(&private->data_mutex);
2653 oval = private->speaker_switching_switch;
2654 val = min(ucontrol->value.enumerated.item[0], 2U);
2659 private->speaker_switching_switch = val;
2661 /* enable/disable speaker switching */
2662 err = scarlett2_usb_set_config(
2663 mixer, SCARLETT2_CONFIG_MONITOR_OTHER_ENABLE,
2668 /* if speaker switching is enabled, select main or alt */
2669 err = scarlett2_usb_set_config(
2670 mixer, SCARLETT2_CONFIG_MONITOR_OTHER_SWITCH,
2675 /* update controls if speaker switching gets enabled or disabled */
2677 err = scarlett2_speaker_switch_enable(mixer);
2678 else if (oval && !val)
2679 scarlett2_speaker_switch_disable(mixer);
2685 mutex_unlock(&private->data_mutex);
2689 static const struct snd_kcontrol_new scarlett2_speaker_switch_enum_ctl = {
2690 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2692 .info = scarlett2_speaker_switch_enum_ctl_info,
2693 .get = scarlett2_speaker_switch_enum_ctl_get,
2694 .put = scarlett2_speaker_switch_enum_ctl_put,
2697 static int scarlett2_add_speaker_switch_ctl(
2698 struct usb_mixer_interface *mixer)
2700 struct scarlett2_data *private = mixer->private_data;
2701 const struct scarlett2_device_info *info = private->info;
2703 if (!info->has_speaker_switching)
2706 return scarlett2_add_new_ctl(
2707 mixer, &scarlett2_speaker_switch_enum_ctl,
2708 0, 1, "Speaker Switching Playback Enum",
2709 &private->speaker_switching_ctl);
2712 /*** Talkback and Talkback Map Controls ***/
2714 static int scarlett2_talkback_enum_ctl_info(
2715 struct snd_kcontrol *kctl, struct snd_ctl_elem_info *uinfo)
2717 static const char *const values[3] = {
2718 "Disabled", "Off", "On"
2721 return snd_ctl_enum_info(uinfo, 1, 3, values);
2724 static int scarlett2_talkback_enum_ctl_get(
2725 struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol)
2727 struct usb_mixer_elem_info *elem = kctl->private_data;
2728 struct usb_mixer_interface *mixer = elem->head.mixer;
2729 struct scarlett2_data *private = mixer->private_data;
2731 mutex_lock(&private->data_mutex);
2732 if (private->monitor_other_updated)
2733 scarlett2_update_monitor_other(mixer);
2734 ucontrol->value.enumerated.item[0] = private->talkback_switch;
2735 mutex_unlock(&private->data_mutex);
2740 static int scarlett2_talkback_enum_ctl_put(
2741 struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol)
2743 struct usb_mixer_elem_info *elem = kctl->private_data;
2744 struct usb_mixer_interface *mixer = elem->head.mixer;
2745 struct scarlett2_data *private = mixer->private_data;
2747 int oval, val, err = 0;
2749 mutex_lock(&private->data_mutex);
2751 oval = private->talkback_switch;
2752 val = min(ucontrol->value.enumerated.item[0], 2U);
2757 private->talkback_switch = val;
2759 /* enable/disable talkback */
2760 err = scarlett2_usb_set_config(
2761 mixer, SCARLETT2_CONFIG_MONITOR_OTHER_ENABLE,
2766 /* if talkback is enabled, select main or alt */
2767 err = scarlett2_usb_set_config(
2768 mixer, SCARLETT2_CONFIG_MONITOR_OTHER_SWITCH,
2774 mutex_unlock(&private->data_mutex);
2778 static const struct snd_kcontrol_new scarlett2_talkback_enum_ctl = {
2779 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2781 .info = scarlett2_talkback_enum_ctl_info,
2782 .get = scarlett2_talkback_enum_ctl_get,
2783 .put = scarlett2_talkback_enum_ctl_put,
2786 static int scarlett2_talkback_map_ctl_get(
2787 struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol)
2789 struct usb_mixer_elem_info *elem = kctl->private_data;
2790 struct usb_mixer_interface *mixer = elem->head.mixer;
2791 struct scarlett2_data *private = mixer->private_data;
2792 int index = elem->control;
2794 ucontrol->value.integer.value[0] = private->talkback_map[index];
2799 static int scarlett2_talkback_map_ctl_put(
2800 struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol)
2802 struct usb_mixer_elem_info *elem = kctl->private_data;
2803 struct usb_mixer_interface *mixer = elem->head.mixer;
2804 struct scarlett2_data *private = mixer->private_data;
2805 const int (*port_count)[SCARLETT2_PORT_DIRNS] =
2806 private->info->port_count;
2807 int num_mixes = port_count[SCARLETT2_PORT_TYPE_MIX][SCARLETT2_PORT_IN];
2809 int index = elem->control;
2810 int oval, val, err = 0, i;
2813 mutex_lock(&private->data_mutex);
2815 oval = private->talkback_map[index];
2816 val = !!ucontrol->value.integer.value[0];
2821 private->talkback_map[index] = val;
2823 for (i = 0; i < num_mixes; i++)
2824 bitmap |= private->talkback_map[i] << i;
2826 /* Send updated bitmap to the device */
2827 err = scarlett2_usb_set_config(mixer, SCARLETT2_CONFIG_TALKBACK_MAP,
2833 mutex_unlock(&private->data_mutex);
2837 static const struct snd_kcontrol_new scarlett2_talkback_map_ctl = {
2838 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2840 .info = snd_ctl_boolean_mono_info,
2841 .get = scarlett2_talkback_map_ctl_get,
2842 .put = scarlett2_talkback_map_ctl_put,
2845 static int scarlett2_add_talkback_ctls(
2846 struct usb_mixer_interface *mixer)
2848 struct scarlett2_data *private = mixer->private_data;
2849 const struct scarlett2_device_info *info = private->info;
2850 const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count;
2851 int num_mixes = port_count[SCARLETT2_PORT_TYPE_MIX][SCARLETT2_PORT_IN];
2853 char s[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
2855 if (!info->has_talkback)
2858 err = scarlett2_add_new_ctl(
2859 mixer, &scarlett2_talkback_enum_ctl,
2860 0, 1, "Talkback Playback Enum",
2861 &private->talkback_ctl);
2865 for (i = 0; i < num_mixes; i++) {
2866 snprintf(s, sizeof(s),
2867 "Talkback Mix %c Playback Switch", i + 'A');
2868 err = scarlett2_add_new_ctl(mixer, &scarlett2_talkback_map_ctl,
2877 /*** Dim/Mute Controls ***/
2879 static int scarlett2_dim_mute_ctl_get(struct snd_kcontrol *kctl,
2880 struct snd_ctl_elem_value *ucontrol)
2882 struct usb_mixer_elem_info *elem = kctl->private_data;
2883 struct usb_mixer_interface *mixer = elem->head.mixer;
2884 struct scarlett2_data *private = mixer->private_data;
2886 mutex_lock(&private->data_mutex);
2887 if (private->vol_updated)
2888 scarlett2_update_volumes(mixer);
2889 mutex_unlock(&private->data_mutex);
2891 ucontrol->value.integer.value[0] = private->dim_mute[elem->control];
2895 static int scarlett2_dim_mute_ctl_put(struct snd_kcontrol *kctl,
2896 struct snd_ctl_elem_value *ucontrol)
2898 struct usb_mixer_elem_info *elem = kctl->private_data;
2899 struct usb_mixer_interface *mixer = elem->head.mixer;
2900 struct scarlett2_data *private = mixer->private_data;
2901 const struct scarlett2_device_info *info = private->info;
2902 const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count;
2904 port_count[SCARLETT2_PORT_TYPE_ANALOGUE][SCARLETT2_PORT_OUT];
2906 int index = elem->control;
2907 int oval, val, err = 0, i;
2909 mutex_lock(&private->data_mutex);
2911 oval = private->dim_mute[index];
2912 val = !!ucontrol->value.integer.value[0];
2917 private->dim_mute[index] = val;
2919 /* Send switch change to the device */
2920 err = scarlett2_usb_set_config(mixer, SCARLETT2_CONFIG_DIM_MUTE,
2925 if (index == SCARLETT2_BUTTON_MUTE)
2926 for (i = 0; i < num_line_out; i++) {
2927 int line_index = line_out_remap(private, i);
2929 if (private->vol_sw_hw_switch[line_index]) {
2930 private->mute_switch[line_index] = val;
2931 snd_ctl_notify(mixer->chip->card,
2932 SNDRV_CTL_EVENT_MASK_VALUE,
2933 &private->mute_ctls[i]->id);
2938 mutex_unlock(&private->data_mutex);
2942 static const struct snd_kcontrol_new scarlett2_dim_mute_ctl = {
2943 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2945 .info = snd_ctl_boolean_mono_info,
2946 .get = scarlett2_dim_mute_ctl_get,
2947 .put = scarlett2_dim_mute_ctl_put
2950 /*** Create the analogue output controls ***/
2952 static int scarlett2_add_line_out_ctls(struct usb_mixer_interface *mixer)
2954 struct scarlett2_data *private = mixer->private_data;
2955 const struct scarlett2_device_info *info = private->info;
2956 const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count;
2958 port_count[SCARLETT2_PORT_TYPE_ANALOGUE][SCARLETT2_PORT_OUT];
2960 char s[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
2962 /* Add R/O HW volume control */
2963 if (info->line_out_hw_vol) {
2964 snprintf(s, sizeof(s), "Master HW Playback Volume");
2965 err = scarlett2_add_new_ctl(mixer,
2966 &scarlett2_master_volume_ctl,
2967 0, 1, s, &private->master_vol_ctl);
2972 /* Add volume controls */
2973 for (i = 0; i < num_line_out; i++) {
2974 int index = line_out_remap(private, i);
2977 if (info->line_out_descrs[i])
2978 snprintf(s, sizeof(s),
2979 "Line %02d (%s) Playback Volume",
2980 i + 1, info->line_out_descrs[i]);
2982 snprintf(s, sizeof(s),
2983 "Line %02d Playback Volume",
2985 err = scarlett2_add_new_ctl(mixer,
2986 &scarlett2_line_out_volume_ctl,
2987 i, 1, s, &private->vol_ctls[i]);
2992 snprintf(s, sizeof(s),
2993 "Line %02d Mute Playback Switch",
2995 err = scarlett2_add_new_ctl(mixer,
2996 &scarlett2_mute_ctl,
2998 &private->mute_ctls[i]);
3002 /* Make the fader and mute controls read-only if the
3003 * SW/HW switch is set to HW
3005 if (private->vol_sw_hw_switch[index])
3006 scarlett2_vol_ctl_set_writable(mixer, i, 0);
3009 if (info->line_out_hw_vol) {
3010 snprintf(s, sizeof(s),
3011 "Line Out %02d Volume Control Playback Enum",
3013 err = scarlett2_add_new_ctl(mixer,
3014 &scarlett2_sw_hw_enum_ctl,
3016 &private->sw_hw_ctls[i]);
3020 /* Make the switch read-only if the line is
3021 * involved in speaker switching
3023 if (private->speaker_switching_switch && i < 4)
3024 scarlett2_sw_hw_ctl_ro(private, i);
3028 /* Add dim/mute controls */
3029 if (info->line_out_hw_vol)
3030 for (i = 0; i < SCARLETT2_DIM_MUTE_COUNT; i++) {
3031 err = scarlett2_add_new_ctl(
3032 mixer, &scarlett2_dim_mute_ctl,
3033 i, 1, scarlett2_dim_mute_names[i],
3034 &private->dim_mute_ctls[i]);
3042 /*** Create the analogue input controls ***/
3044 static int scarlett2_add_line_in_ctls(struct usb_mixer_interface *mixer)
3046 struct scarlett2_data *private = mixer->private_data;
3047 const struct scarlett2_device_info *info = private->info;
3049 char s[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
3050 const char *fmt = "Line In %d %s Capture %s";
3051 const char *fmt2 = "Line In %d-%d %s Capture %s";
3053 /* Add input level (line/inst) controls */
3054 for (i = 0; i < info->level_input_count; i++) {
3055 snprintf(s, sizeof(s), fmt, i + 1 + info->level_input_first,
3057 err = scarlett2_add_new_ctl(mixer, &scarlett2_level_enum_ctl,
3058 i, 1, s, &private->level_ctls[i]);
3063 /* Add input pad controls */
3064 for (i = 0; i < info->pad_input_count; i++) {
3065 snprintf(s, sizeof(s), fmt, i + 1, "Pad", "Switch");
3066 err = scarlett2_add_new_ctl(mixer, &scarlett2_pad_ctl,
3067 i, 1, s, &private->pad_ctls[i]);
3072 /* Add input air controls */
3073 for (i = 0; i < info->air_input_count; i++) {
3074 snprintf(s, sizeof(s), fmt, i + 1, "Air", "Switch");
3075 err = scarlett2_add_new_ctl(mixer, &scarlett2_air_ctl,
3076 i, 1, s, &private->air_ctls[i]);
3081 /* Add input phantom controls */
3082 if (info->inputs_per_phantom == 1) {
3083 for (i = 0; i < info->phantom_count; i++) {
3084 snprintf(s, sizeof(s), fmt, i + 1,
3085 "Phantom Power", "Switch");
3086 err = scarlett2_add_new_ctl(
3087 mixer, &scarlett2_phantom_ctl,
3088 i, 1, s, &private->phantom_ctls[i]);
3092 } else if (info->inputs_per_phantom > 1) {
3093 for (i = 0; i < info->phantom_count; i++) {
3094 int from = i * info->inputs_per_phantom + 1;
3095 int to = (i + 1) * info->inputs_per_phantom;
3097 snprintf(s, sizeof(s), fmt2, from, to,
3098 "Phantom Power", "Switch");
3099 err = scarlett2_add_new_ctl(
3100 mixer, &scarlett2_phantom_ctl,
3101 i, 1, s, &private->phantom_ctls[i]);
3106 if (info->phantom_count) {
3107 err = scarlett2_add_new_ctl(
3108 mixer, &scarlett2_phantom_persistence_ctl, 0, 1,
3109 "Phantom Power Persistence Capture Switch", NULL);
3117 /*** Mixer Volume Controls ***/
3119 static int scarlett2_mixer_ctl_info(struct snd_kcontrol *kctl,
3120 struct snd_ctl_elem_info *uinfo)
3122 struct usb_mixer_elem_info *elem = kctl->private_data;
3124 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
3125 uinfo->count = elem->channels;
3126 uinfo->value.integer.min = 0;
3127 uinfo->value.integer.max = SCARLETT2_MIXER_MAX_VALUE;
3128 uinfo->value.integer.step = 1;
3132 static int scarlett2_mixer_ctl_get(struct snd_kcontrol *kctl,
3133 struct snd_ctl_elem_value *ucontrol)
3135 struct usb_mixer_elem_info *elem = kctl->private_data;
3136 struct scarlett2_data *private = elem->head.mixer->private_data;
3138 ucontrol->value.integer.value[0] = private->mix[elem->control];
3142 static int scarlett2_mixer_ctl_put(struct snd_kcontrol *kctl,
3143 struct snd_ctl_elem_value *ucontrol)
3145 struct usb_mixer_elem_info *elem = kctl->private_data;
3146 struct usb_mixer_interface *mixer = elem->head.mixer;
3147 struct scarlett2_data *private = mixer->private_data;
3148 const struct scarlett2_device_info *info = private->info;
3149 const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count;
3150 int oval, val, num_mixer_in, mix_num, err = 0;
3151 int index = elem->control;
3153 mutex_lock(&private->data_mutex);
3155 oval = private->mix[index];
3156 val = ucontrol->value.integer.value[0];
3157 num_mixer_in = port_count[SCARLETT2_PORT_TYPE_MIX][SCARLETT2_PORT_OUT];
3158 mix_num = index / num_mixer_in;
3163 private->mix[index] = val;
3164 err = scarlett2_usb_set_mix(mixer, mix_num);
3169 mutex_unlock(&private->data_mutex);
3173 static const DECLARE_TLV_DB_MINMAX(
3174 db_scale_scarlett2_mixer,
3175 SCARLETT2_MIXER_MIN_DB * 100,
3176 SCARLETT2_MIXER_MAX_DB * 100
3179 static const struct snd_kcontrol_new scarlett2_mixer_ctl = {
3180 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
3181 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
3182 SNDRV_CTL_ELEM_ACCESS_TLV_READ,
3184 .info = scarlett2_mixer_ctl_info,
3185 .get = scarlett2_mixer_ctl_get,
3186 .put = scarlett2_mixer_ctl_put,
3187 .private_value = SCARLETT2_MIXER_MAX_DB, /* max value */
3188 .tlv = { .p = db_scale_scarlett2_mixer }
3191 static int scarlett2_add_mixer_ctls(struct usb_mixer_interface *mixer)
3193 struct scarlett2_data *private = mixer->private_data;
3194 const struct scarlett2_device_info *info = private->info;
3195 const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count;
3198 char s[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
3201 port_count[SCARLETT2_PORT_TYPE_MIX][SCARLETT2_PORT_OUT];
3203 port_count[SCARLETT2_PORT_TYPE_MIX][SCARLETT2_PORT_IN];
3205 for (i = 0, index = 0; i < num_outputs; i++)
3206 for (j = 0; j < num_inputs; j++, index++) {
3207 snprintf(s, sizeof(s),
3208 "Mix %c Input %02d Playback Volume",
3210 err = scarlett2_add_new_ctl(mixer, &scarlett2_mixer_ctl,
3219 /*** Mux Source Selection Controls ***/
3221 static int scarlett2_mux_src_enum_ctl_info(struct snd_kcontrol *kctl,
3222 struct snd_ctl_elem_info *uinfo)
3224 struct usb_mixer_elem_info *elem = kctl->private_data;
3225 struct scarlett2_data *private = elem->head.mixer->private_data;
3226 const struct scarlett2_device_info *info = private->info;
3227 const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count;
3228 unsigned int item = uinfo->value.enumerated.item;
3229 int items = private->num_mux_srcs;
3232 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
3233 uinfo->count = elem->channels;
3234 uinfo->value.enumerated.items = items;
3237 item = uinfo->value.enumerated.item = items - 1;
3240 port_type < SCARLETT2_PORT_TYPE_COUNT;
3242 if (item < port_count[port_type][SCARLETT2_PORT_IN]) {
3243 const struct scarlett2_port *port =
3244 &scarlett2_ports[port_type];
3246 sprintf(uinfo->value.enumerated.name,
3247 port->src_descr, item + port->src_num_offset);
3250 item -= port_count[port_type][SCARLETT2_PORT_IN];
3256 static int scarlett2_mux_src_enum_ctl_get(struct snd_kcontrol *kctl,
3257 struct snd_ctl_elem_value *ucontrol)
3259 struct usb_mixer_elem_info *elem = kctl->private_data;
3260 struct usb_mixer_interface *mixer = elem->head.mixer;
3261 struct scarlett2_data *private = mixer->private_data;
3262 const struct scarlett2_device_info *info = private->info;
3263 const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count;
3264 int line_out_count =
3265 port_count[SCARLETT2_PORT_TYPE_ANALOGUE][SCARLETT2_PORT_OUT];
3266 int index = elem->control;
3268 if (index < line_out_count)
3269 index = line_out_remap(private, index);
3271 mutex_lock(&private->data_mutex);
3272 if (private->mux_updated)
3273 scarlett2_usb_get_mux(mixer);
3274 ucontrol->value.enumerated.item[0] = private->mux[index];
3275 mutex_unlock(&private->data_mutex);
3280 static int scarlett2_mux_src_enum_ctl_put(struct snd_kcontrol *kctl,
3281 struct snd_ctl_elem_value *ucontrol)
3283 struct usb_mixer_elem_info *elem = kctl->private_data;
3284 struct usb_mixer_interface *mixer = elem->head.mixer;
3285 struct scarlett2_data *private = mixer->private_data;
3286 const struct scarlett2_device_info *info = private->info;
3287 const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count;
3288 int line_out_count =
3289 port_count[SCARLETT2_PORT_TYPE_ANALOGUE][SCARLETT2_PORT_OUT];
3290 int index = elem->control;
3291 int oval, val, err = 0;
3293 if (index < line_out_count)
3294 index = line_out_remap(private, index);
3296 mutex_lock(&private->data_mutex);
3298 oval = private->mux[index];
3299 val = min(ucontrol->value.enumerated.item[0],
3300 private->num_mux_srcs - 1U);
3305 private->mux[index] = val;
3306 err = scarlett2_usb_set_mux(mixer);
3311 mutex_unlock(&private->data_mutex);
3315 static const struct snd_kcontrol_new scarlett2_mux_src_enum_ctl = {
3316 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
3318 .info = scarlett2_mux_src_enum_ctl_info,
3319 .get = scarlett2_mux_src_enum_ctl_get,
3320 .put = scarlett2_mux_src_enum_ctl_put,
3323 static int scarlett2_add_mux_enums(struct usb_mixer_interface *mixer)
3325 struct scarlett2_data *private = mixer->private_data;
3326 const struct scarlett2_device_info *info = private->info;
3327 const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count;
3328 int port_type, channel, i;
3330 for (i = 0, port_type = 0;
3331 port_type < SCARLETT2_PORT_TYPE_COUNT;
3334 channel < port_count[port_type][SCARLETT2_PORT_OUT];
3337 char s[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
3338 const char *const descr =
3339 scarlett2_ports[port_type].dst_descr;
3341 snprintf(s, sizeof(s) - 5, descr, channel + 1);
3344 err = scarlett2_add_new_ctl(mixer,
3345 &scarlett2_mux_src_enum_ctl,
3347 &private->mux_ctls[i]);
3356 /*** Meter Controls ***/
3358 static int scarlett2_meter_ctl_info(struct snd_kcontrol *kctl,
3359 struct snd_ctl_elem_info *uinfo)
3361 struct usb_mixer_elem_info *elem = kctl->private_data;
3363 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
3364 uinfo->count = elem->channels;
3365 uinfo->value.integer.min = 0;
3366 uinfo->value.integer.max = 4095;
3367 uinfo->value.integer.step = 1;
3371 static int scarlett2_meter_ctl_get(struct snd_kcontrol *kctl,
3372 struct snd_ctl_elem_value *ucontrol)
3374 struct usb_mixer_elem_info *elem = kctl->private_data;
3375 u16 meter_levels[SCARLETT2_MAX_METERS];
3378 err = scarlett2_usb_get_meter_levels(elem->head.mixer, elem->channels,
3383 for (i = 0; i < elem->channels; i++)
3384 ucontrol->value.integer.value[i] = meter_levels[i];
3389 static const struct snd_kcontrol_new scarlett2_meter_ctl = {
3390 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
3391 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
3393 .info = scarlett2_meter_ctl_info,
3394 .get = scarlett2_meter_ctl_get
3397 static int scarlett2_add_meter_ctl(struct usb_mixer_interface *mixer)
3399 struct scarlett2_data *private = mixer->private_data;
3401 /* devices without a mixer also don't support reporting levels */
3402 if (!private->info->has_mixer)
3405 return scarlett2_add_new_ctl(mixer, &scarlett2_meter_ctl,
3406 0, private->num_mux_dsts,
3407 "Level Meter", NULL);
3410 /*** MSD Controls ***/
3412 static int scarlett2_msd_ctl_get(struct snd_kcontrol *kctl,
3413 struct snd_ctl_elem_value *ucontrol)
3415 struct usb_mixer_elem_info *elem = kctl->private_data;
3416 struct scarlett2_data *private = elem->head.mixer->private_data;
3418 ucontrol->value.integer.value[0] = private->msd_switch;
3422 static int scarlett2_msd_ctl_put(struct snd_kcontrol *kctl,
3423 struct snd_ctl_elem_value *ucontrol)
3425 struct usb_mixer_elem_info *elem = kctl->private_data;
3426 struct usb_mixer_interface *mixer = elem->head.mixer;
3427 struct scarlett2_data *private = mixer->private_data;
3429 int oval, val, err = 0;
3431 mutex_lock(&private->data_mutex);
3433 oval = private->msd_switch;
3434 val = !!ucontrol->value.integer.value[0];
3439 private->msd_switch = val;
3441 /* Send switch change to the device */
3442 err = scarlett2_usb_set_config(mixer, SCARLETT2_CONFIG_MSD_SWITCH,
3448 mutex_unlock(&private->data_mutex);
3452 static const struct snd_kcontrol_new scarlett2_msd_ctl = {
3453 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
3455 .info = snd_ctl_boolean_mono_info,
3456 .get = scarlett2_msd_ctl_get,
3457 .put = scarlett2_msd_ctl_put,
3460 static int scarlett2_add_msd_ctl(struct usb_mixer_interface *mixer)
3462 struct scarlett2_data *private = mixer->private_data;
3463 const struct scarlett2_device_info *info = private->info;
3465 if (!info->has_msd_mode)
3468 /* If MSD mode is off, hide the switch by default */
3469 if (!private->msd_switch && !(mixer->chip->setup & SCARLETT2_MSD_ENABLE))
3472 /* Add MSD control */
3473 return scarlett2_add_new_ctl(mixer, &scarlett2_msd_ctl,
3474 0, 1, "MSD Mode Switch", NULL);
3477 /*** Cleanup/Suspend Callbacks ***/
3479 static void scarlett2_private_free(struct usb_mixer_interface *mixer)
3481 struct scarlett2_data *private = mixer->private_data;
3483 cancel_delayed_work_sync(&private->work);
3485 mixer->private_data = NULL;
3488 static void scarlett2_private_suspend(struct usb_mixer_interface *mixer)
3490 struct scarlett2_data *private = mixer->private_data;
3492 if (cancel_delayed_work_sync(&private->work))
3493 scarlett2_config_save(private->mixer);
3496 /*** Initialisation ***/
3498 static void scarlett2_count_mux_io(struct scarlett2_data *private)
3500 const struct scarlett2_device_info *info = private->info;
3501 const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count;
3502 int port_type, srcs = 0, dsts = 0;
3505 port_type < SCARLETT2_PORT_TYPE_COUNT;
3507 srcs += port_count[port_type][SCARLETT2_PORT_IN];
3508 dsts += port_count[port_type][SCARLETT2_PORT_OUT];
3511 private->num_mux_srcs = srcs;
3512 private->num_mux_dsts = dsts;
3515 /* Look through the interface descriptors for the Focusrite Control
3516 * interface (bInterfaceClass = 255 Vendor Specific Class) and set
3517 * bInterfaceNumber, bEndpointAddress, wMaxPacketSize, and bInterval
3520 static int scarlett2_find_fc_interface(struct usb_device *dev,
3521 struct scarlett2_data *private)
3523 struct usb_host_config *config = dev->actconfig;
3526 for (i = 0; i < config->desc.bNumInterfaces; i++) {
3527 struct usb_interface *intf = config->interface[i];
3528 struct usb_interface_descriptor *desc =
3529 &intf->altsetting[0].desc;
3530 struct usb_endpoint_descriptor *epd;
3532 if (desc->bInterfaceClass != 255)
3535 epd = get_endpoint(intf->altsetting, 0);
3536 private->bInterfaceNumber = desc->bInterfaceNumber;
3537 private->bEndpointAddress = epd->bEndpointAddress &
3538 USB_ENDPOINT_NUMBER_MASK;
3539 private->wMaxPacketSize = le16_to_cpu(epd->wMaxPacketSize);
3540 private->bInterval = epd->bInterval;
3547 /* Initialise private data */
3548 static int scarlett2_init_private(struct usb_mixer_interface *mixer,
3549 const struct scarlett2_device_info *info)
3551 struct scarlett2_data *private =
3552 kzalloc(sizeof(struct scarlett2_data), GFP_KERNEL);
3557 mutex_init(&private->usb_mutex);
3558 mutex_init(&private->data_mutex);
3559 INIT_DELAYED_WORK(&private->work, scarlett2_config_save_work);
3561 mixer->private_data = private;
3562 mixer->private_free = scarlett2_private_free;
3563 mixer->private_suspend = scarlett2_private_suspend;
3565 private->info = info;
3566 scarlett2_count_mux_io(private);
3567 private->scarlett2_seq = 0;
3568 private->mixer = mixer;
3570 return scarlett2_find_fc_interface(mixer->chip->dev, private);
3573 /* Cargo cult proprietary initialisation sequence */
3574 static int scarlett2_usb_init(struct usb_mixer_interface *mixer)
3576 struct usb_device *dev = mixer->chip->dev;
3577 struct scarlett2_data *private = mixer->private_data;
3581 if (usb_pipe_type_check(dev, usb_sndctrlpipe(dev, 0)))
3585 err = scarlett2_usb_rx(dev, private->bInterfaceNumber,
3586 SCARLETT2_USB_CMD_INIT, buf, sizeof(buf));
3591 private->scarlett2_seq = 1;
3592 err = scarlett2_usb(mixer, SCARLETT2_USB_INIT_1, NULL, 0, NULL, 0);
3597 private->scarlett2_seq = 1;
3598 return scarlett2_usb(mixer, SCARLETT2_USB_INIT_2, NULL, 0, NULL, 84);
3601 /* Read configuration from the interface on start */
3602 static int scarlett2_read_configs(struct usb_mixer_interface *mixer)
3604 struct scarlett2_data *private = mixer->private_data;
3605 const struct scarlett2_device_info *info = private->info;
3606 const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count;
3608 port_count[SCARLETT2_PORT_TYPE_ANALOGUE][SCARLETT2_PORT_OUT];
3610 port_count[SCARLETT2_PORT_TYPE_MIX][SCARLETT2_PORT_IN];
3611 struct scarlett2_usb_volume_status volume_status;
3614 if (info->has_msd_mode) {
3615 err = scarlett2_usb_get_config(
3616 mixer, SCARLETT2_CONFIG_MSD_SWITCH,
3617 1, &private->msd_switch);
3621 /* no other controls are created if MSD mode is on */
3622 if (private->msd_switch)
3626 err = scarlett2_update_input_other(mixer);
3630 err = scarlett2_update_monitor_other(mixer);
3634 /* the rest of the configuration is for devices with a mixer */
3635 if (!info->has_mixer)
3638 err = scarlett2_update_sync(mixer);
3642 err = scarlett2_usb_get_volume_status(mixer, &volume_status);
3646 if (info->line_out_hw_vol)
3647 for (i = 0; i < SCARLETT2_DIM_MUTE_COUNT; i++)
3648 private->dim_mute[i] = !!volume_status.dim_mute[i];
3650 private->master_vol = clamp(
3651 volume_status.master_vol + SCARLETT2_VOLUME_BIAS,
3652 0, SCARLETT2_VOLUME_BIAS);
3654 for (i = 0; i < num_line_out; i++) {
3657 private->vol_sw_hw_switch[i] =
3658 info->line_out_hw_vol
3659 && volume_status.sw_hw_switch[i];
3661 volume = private->vol_sw_hw_switch[i]
3662 ? volume_status.master_vol
3663 : volume_status.sw_vol[i];
3664 volume = clamp(volume + SCARLETT2_VOLUME_BIAS,
3665 0, SCARLETT2_VOLUME_BIAS);
3666 private->vol[i] = volume;
3668 mute = private->vol_sw_hw_switch[i]
3669 ? private->dim_mute[SCARLETT2_BUTTON_MUTE]
3670 : volume_status.mute_switch[i];
3671 private->mute_switch[i] = mute;
3674 for (i = 0; i < num_mixer_out; i++) {
3675 err = scarlett2_usb_get_mix(mixer, i);
3680 return scarlett2_usb_get_mux(mixer);
3683 /* Notify on sync change */
3684 static void scarlett2_notify_sync(
3685 struct usb_mixer_interface *mixer)
3687 struct scarlett2_data *private = mixer->private_data;
3689 private->sync_updated = 1;
3691 snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
3692 &private->sync_ctl->id);
3695 /* Notify on monitor change */
3696 static void scarlett2_notify_monitor(
3697 struct usb_mixer_interface *mixer)
3699 struct snd_card *card = mixer->chip->card;
3700 struct scarlett2_data *private = mixer->private_data;
3701 const struct scarlett2_device_info *info = private->info;
3702 const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count;
3704 port_count[SCARLETT2_PORT_TYPE_ANALOGUE][SCARLETT2_PORT_OUT];
3707 /* if line_out_hw_vol is 0, there are no controls to update */
3708 if (!info->line_out_hw_vol)
3711 private->vol_updated = 1;
3713 snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
3714 &private->master_vol_ctl->id);
3716 for (i = 0; i < num_line_out; i++)
3717 if (private->vol_sw_hw_switch[line_out_remap(private, i)])
3718 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
3719 &private->vol_ctls[i]->id);
3722 /* Notify on dim/mute change */
3723 static void scarlett2_notify_dim_mute(
3724 struct usb_mixer_interface *mixer)
3726 struct snd_card *card = mixer->chip->card;
3727 struct scarlett2_data *private = mixer->private_data;
3728 const struct scarlett2_device_info *info = private->info;
3729 const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count;
3731 port_count[SCARLETT2_PORT_TYPE_ANALOGUE][SCARLETT2_PORT_OUT];
3734 private->vol_updated = 1;
3736 if (!info->line_out_hw_vol)
3739 for (i = 0; i < SCARLETT2_DIM_MUTE_COUNT; i++)
3740 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
3741 &private->dim_mute_ctls[i]->id);
3743 for (i = 0; i < num_line_out; i++)
3744 if (private->vol_sw_hw_switch[line_out_remap(private, i)])
3745 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
3746 &private->mute_ctls[i]->id);
3749 /* Notify on "input other" change (level/pad/air) */
3750 static void scarlett2_notify_input_other(
3751 struct usb_mixer_interface *mixer)
3753 struct snd_card *card = mixer->chip->card;
3754 struct scarlett2_data *private = mixer->private_data;
3755 const struct scarlett2_device_info *info = private->info;
3758 private->input_other_updated = 1;
3760 for (i = 0; i < info->level_input_count; i++)
3761 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
3762 &private->level_ctls[i]->id);
3763 for (i = 0; i < info->pad_input_count; i++)
3764 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
3765 &private->pad_ctls[i]->id);
3766 for (i = 0; i < info->air_input_count; i++)
3767 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
3768 &private->air_ctls[i]->id);
3769 for (i = 0; i < info->phantom_count; i++)
3770 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
3771 &private->phantom_ctls[i]->id);
3774 /* Notify on "monitor other" change (direct monitor, speaker
3775 * switching, talkback)
3777 static void scarlett2_notify_monitor_other(
3778 struct usb_mixer_interface *mixer)
3780 struct snd_card *card = mixer->chip->card;
3781 struct scarlett2_data *private = mixer->private_data;
3782 const struct scarlett2_device_info *info = private->info;
3784 private->monitor_other_updated = 1;
3786 if (info->direct_monitor) {
3787 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
3788 &private->direct_monitor_ctl->id);
3792 if (info->has_speaker_switching)
3793 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
3794 &private->speaker_switching_ctl->id);
3796 if (info->has_talkback)
3797 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
3798 &private->talkback_ctl->id);
3800 /* if speaker switching was recently enabled or disabled,
3801 * invalidate the dim/mute and mux enum controls
3803 if (private->speaker_switching_switched) {
3806 scarlett2_notify_dim_mute(mixer);
3808 private->speaker_switching_switched = 0;
3809 private->mux_updated = 1;
3811 for (i = 0; i < private->num_mux_dsts; i++)
3812 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
3813 &private->mux_ctls[i]->id);
3817 /* Interrupt callback */
3818 static void scarlett2_notify(struct urb *urb)
3820 struct usb_mixer_interface *mixer = urb->context;
3821 int len = urb->actual_length;
3822 int ustatus = urb->status;
3825 if (ustatus != 0 || len != 8)
3828 data = le32_to_cpu(*(__le32 *)urb->transfer_buffer);
3829 if (data & SCARLETT2_USB_NOTIFY_SYNC)
3830 scarlett2_notify_sync(mixer);
3831 if (data & SCARLETT2_USB_NOTIFY_MONITOR)
3832 scarlett2_notify_monitor(mixer);
3833 if (data & SCARLETT2_USB_NOTIFY_DIM_MUTE)
3834 scarlett2_notify_dim_mute(mixer);
3835 if (data & SCARLETT2_USB_NOTIFY_INPUT_OTHER)
3836 scarlett2_notify_input_other(mixer);
3837 if (data & SCARLETT2_USB_NOTIFY_MONITOR_OTHER)
3838 scarlett2_notify_monitor_other(mixer);
3841 if (ustatus != -ENOENT &&
3842 ustatus != -ECONNRESET &&
3843 ustatus != -ESHUTDOWN) {
3844 urb->dev = mixer->chip->dev;
3845 usb_submit_urb(urb, GFP_ATOMIC);
3849 static int scarlett2_init_notify(struct usb_mixer_interface *mixer)
3851 struct usb_device *dev = mixer->chip->dev;
3852 struct scarlett2_data *private = mixer->private_data;
3853 unsigned int pipe = usb_rcvintpipe(dev, private->bEndpointAddress);
3854 void *transfer_buffer;
3857 usb_audio_err(mixer->chip,
3858 "%s: mixer urb already in use!\n", __func__);
3862 if (usb_pipe_type_check(dev, pipe))
3865 mixer->urb = usb_alloc_urb(0, GFP_KERNEL);
3869 transfer_buffer = kmalloc(private->wMaxPacketSize, GFP_KERNEL);
3870 if (!transfer_buffer)
3873 usb_fill_int_urb(mixer->urb, dev, pipe,
3874 transfer_buffer, private->wMaxPacketSize,
3875 scarlett2_notify, mixer, private->bInterval);
3877 return usb_submit_urb(mixer->urb, GFP_KERNEL);
3880 static int snd_scarlett_gen2_controls_create(struct usb_mixer_interface *mixer)
3882 const struct scarlett2_device_info **info = scarlett2_devices;
3885 /* Find device in scarlett2_devices */
3886 while (*info && (*info)->usb_id != mixer->chip->usb_id)
3891 /* Initialise private data */
3892 err = scarlett2_init_private(mixer, *info);
3896 /* Send proprietary USB initialisation sequence */
3897 err = scarlett2_usb_init(mixer);
3901 /* Read volume levels and controls from the interface */
3902 err = scarlett2_read_configs(mixer);
3906 /* Create the MSD control */
3907 err = scarlett2_add_msd_ctl(mixer);
3911 /* If MSD mode is enabled, don't create any other controls */
3912 if (((struct scarlett2_data *)mixer->private_data)->msd_switch)
3915 /* Create the analogue output controls */
3916 err = scarlett2_add_line_out_ctls(mixer);
3920 /* Create the analogue input controls */
3921 err = scarlett2_add_line_in_ctls(mixer);
3925 /* Create the input, output, and mixer mux input selections */
3926 err = scarlett2_add_mux_enums(mixer);
3930 /* Create the matrix mixer controls */
3931 err = scarlett2_add_mixer_ctls(mixer);
3935 /* Create the level meter controls */
3936 err = scarlett2_add_meter_ctl(mixer);
3940 /* Create the sync control */
3941 err = scarlett2_add_sync_ctl(mixer);
3945 /* Create the direct monitor control */
3946 err = scarlett2_add_direct_monitor_ctl(mixer);
3950 /* Create the speaker switching control */
3951 err = scarlett2_add_speaker_switch_ctl(mixer);
3955 /* Create the talkback controls */
3956 err = scarlett2_add_talkback_ctls(mixer);
3960 /* Set up the interrupt polling */
3961 err = scarlett2_init_notify(mixer);
3968 int snd_scarlett_gen2_init(struct usb_mixer_interface *mixer)
3970 struct snd_usb_audio *chip = mixer->chip;
3973 /* only use UAC_VERSION_2 */
3974 if (!mixer->protocol)
3977 if (!(chip->setup & SCARLETT2_ENABLE)) {
3978 usb_audio_info(chip,
3979 "Focusrite Scarlett Gen 2/3 Mixer Driver disabled; "
3980 "use options snd_usb_audio vid=0x%04x pid=0x%04x "
3981 "device_setup=1 to enable and report any issues "
3983 USB_ID_VENDOR(chip->usb_id),
3984 USB_ID_PRODUCT(chip->usb_id));
3988 usb_audio_info(chip,
3989 "Focusrite Scarlett Gen 2/3 Mixer Driver enabled pid=0x%04x",
3990 USB_ID_PRODUCT(chip->usb_id));
3992 err = snd_scarlett_gen2_controls_create(mixer);
3994 usb_audio_err(mixer->chip,
3995 "Error initialising Scarlett Mixer Driver: %d",