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![Takashi Iwai](/assets/img/avatar_default.png)
Apply const prefix to the remaining places: the static table for the unit information, the mixer maps, the validator tables, etc. Just for minor optimization and no functional changes. Link: https://lore.kernel.org/r/20200105144823.29547-12-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
1011 lines
28 KiB
C
1011 lines
28 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Scarlett Driver for ALSA
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*
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* Copyright (c) 2013 by Tobias Hoffmann
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* Copyright (c) 2013 by Robin Gareus <robin at gareus.org>
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* Copyright (c) 2002 by Takashi Iwai <tiwai at suse.de>
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* Copyright (c) 2014 by Chris J Arges <chris.j.arges at canonical.com>
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*
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* Many codes borrowed from audio.c by
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* Alan Cox (alan at lxorguk.ukuu.org.uk)
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* Thomas Sailer (sailer at ife.ee.ethz.ch)
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*
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* Code cleanup:
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* David Henningsson <david.henningsson at canonical.com>
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*/
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/*
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* Rewritten and extended to support more models, e.g. Scarlett 18i8.
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*
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* Auto-detection via UAC2 is not feasible to properly discover the vast
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* majority of features. It's related to both Linux/ALSA's UAC2 as well as
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* Focusrite's implementation of it. Eventually quirks may be sufficient but
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* right now it's a major headache to work arount these things.
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*
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* NB. Neither the OSX nor the win driver provided by Focusrite performs
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* discovery, they seem to operate the same as this driver.
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*/
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/* Mixer Interface for the Focusrite Scarlett 18i6 audio interface.
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*
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* The protocol was reverse engineered by looking at communication between
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* Scarlett MixControl (v 1.2.128.0) and the Focusrite(R) Scarlett 18i6
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* (firmware v305) using wireshark and usbmon in January 2013.
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* Extended in July 2013.
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*
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* this mixer gives complete access to all features of the device:
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* - change Impedance of inputs (Line-in, Mic / Instrument, Hi-Z)
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* - select clock source
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* - dynamic input to mixer-matrix assignment
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* - 18 x 6 mixer-matrix gain stages
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* - bus routing & volume control
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* - automatic re-initialization on connect if device was power-cycled
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*
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* USB URB commands overview (bRequest = 0x01 = UAC2_CS_CUR)
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* wIndex
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* 0x01 Analog Input line/instrument impedance switch, wValue=0x0901 +
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* channel, data=Line/Inst (2bytes)
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* pad (-10dB) switch, wValue=0x0b01 + channel, data=Off/On (2bytes)
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* ?? wValue=0x0803/04, ?? (2bytes)
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* 0x0a Master Volume, wValue=0x0200+bus[0:all + only 1..4?] data(2bytes)
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* Bus Mute/Unmute wValue=0x0100+bus[0:all + only 1..4?], data(2bytes)
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* 0x28 Clock source, wValue=0x0100, data={1:int,2:spdif,3:adat} (1byte)
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* 0x29 Set Sample-rate, wValue=0x0100, data=sample-rate(4bytes)
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* 0x32 Mixer mux, wValue=0x0600 + mixer-channel, data=input-to-connect(2bytes)
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* 0x33 Output mux, wValue=bus, data=input-to-connect(2bytes)
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* 0x34 Capture mux, wValue=0...18, data=input-to-connect(2bytes)
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* 0x3c Matrix Mixer gains, wValue=mixer-node data=gain(2bytes)
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* ?? [sometimes](4bytes, e.g 0x000003be 0x000003bf ...03ff)
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*
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* USB reads: (i.e. actually issued by original software)
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* 0x01 wValue=0x0901+channel (1byte!!), wValue=0x0b01+channed (1byte!!)
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* 0x29 wValue=0x0100 sample-rate(4bytes)
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* wValue=0x0200 ?? 1byte (only once)
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* 0x2a wValue=0x0100 ?? 4bytes, sample-rate2 ??
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*
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* USB reads with bRequest = 0x03 = UAC2_CS_MEM
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* 0x3c wValue=0x0002 1byte: sync status (locked=1)
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* wValue=0x0000 18*2byte: peak meter (inputs)
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* wValue=0x0001 8(?)*2byte: peak meter (mix)
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* wValue=0x0003 6*2byte: peak meter (pcm/daw)
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*
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* USB write with bRequest = 0x03
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* 0x3c Save settings to hardware: wValue=0x005a, data=0xa5
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*
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*
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* <ditaa>
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* /--------------\ 18chn 6chn /--------------\
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* | Hardware in +--+-------\ /------+--+ ALSA PCM out |
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* \--------------/ | | | | \--------------/
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* | | | |
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* | v v |
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* | +---------------+ |
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* | \ Matrix Mux / |
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* | +-----+-----+ |
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* | | |
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* | | 18chn |
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* | v |
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* | +-----------+ |
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* | | Mixer | |
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* | | Matrix | |
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* | | | |
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* | | 18x6 Gain | |
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* | | stages | |
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* | +-----+-----+ |
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* | | |
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* | | |
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* | 18chn | 6chn | 6chn
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* v v v
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* =========================
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* +---------------+ +--—------------+
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* \ Output Mux / \ Capture Mux /
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* +-----+-----+ +-----+-----+
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* | |
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* | 6chn |
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* v |
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* +-------------+ |
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* | Master Gain | |
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* +------+------+ |
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* | |
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* | 6chn | 18chn
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* | (3 stereo pairs) |
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* /--------------\ | | /--------------\
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* | Hardware out |<--/ \-->| ALSA PCM in |
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* \--------------/ \--------------/
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* </ditaa>
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*
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*/
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#include <linux/slab.h>
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#include <linux/usb.h>
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#include <linux/usb/audio-v2.h>
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#include <sound/core.h>
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#include <sound/control.h>
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#include <sound/tlv.h>
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#include "usbaudio.h"
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#include "mixer.h"
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#include "helper.h"
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#include "power.h"
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#include "mixer_scarlett.h"
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/* some gui mixers can't handle negative ctl values */
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#define SND_SCARLETT_LEVEL_BIAS 128
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#define SND_SCARLETT_MATRIX_IN_MAX 18
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#define SND_SCARLETT_CONTROLS_MAX 10
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#define SND_SCARLETT_OFFSETS_MAX 5
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enum {
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SCARLETT_OUTPUTS,
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SCARLETT_SWITCH_IMPEDANCE,
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SCARLETT_SWITCH_PAD,
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SCARLETT_SWITCH_GAIN,
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};
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enum {
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SCARLETT_OFFSET_PCM = 0,
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SCARLETT_OFFSET_ANALOG = 1,
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SCARLETT_OFFSET_SPDIF = 2,
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SCARLETT_OFFSET_ADAT = 3,
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SCARLETT_OFFSET_MIX = 4,
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};
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struct scarlett_mixer_elem_enum_info {
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int start;
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int len;
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int offsets[SND_SCARLETT_OFFSETS_MAX];
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char const * const *names;
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};
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struct scarlett_mixer_control {
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unsigned char num;
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unsigned char type;
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const char *name;
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};
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struct scarlett_device_info {
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int matrix_in;
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int matrix_out;
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int input_len;
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int output_len;
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struct scarlett_mixer_elem_enum_info opt_master;
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struct scarlett_mixer_elem_enum_info opt_matrix;
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/* initial values for matrix mux */
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int matrix_mux_init[SND_SCARLETT_MATRIX_IN_MAX];
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int num_controls; /* number of items in controls */
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const struct scarlett_mixer_control controls[SND_SCARLETT_CONTROLS_MAX];
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};
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/********************** Enum Strings *************************/
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static const struct scarlett_mixer_elem_enum_info opt_pad = {
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.start = 0,
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.len = 2,
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.offsets = {},
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.names = (char const * const []){
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"0dB", "-10dB"
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}
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};
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static const struct scarlett_mixer_elem_enum_info opt_gain = {
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.start = 0,
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.len = 2,
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.offsets = {},
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.names = (char const * const []){
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"Lo", "Hi"
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}
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};
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static const struct scarlett_mixer_elem_enum_info opt_impedance = {
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.start = 0,
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.len = 2,
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.offsets = {},
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.names = (char const * const []){
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"Line", "Hi-Z"
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}
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};
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static const struct scarlett_mixer_elem_enum_info opt_clock = {
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.start = 1,
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.len = 3,
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.offsets = {},
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.names = (char const * const []){
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"Internal", "SPDIF", "ADAT"
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}
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};
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static const struct scarlett_mixer_elem_enum_info opt_sync = {
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.start = 0,
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.len = 2,
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.offsets = {},
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.names = (char const * const []){
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"No Lock", "Locked"
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}
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};
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static int scarlett_ctl_switch_info(struct snd_kcontrol *kctl,
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struct snd_ctl_elem_info *uinfo)
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{
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struct usb_mixer_elem_info *elem = kctl->private_data;
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uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
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uinfo->count = elem->channels;
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uinfo->value.integer.min = 0;
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uinfo->value.integer.max = 1;
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return 0;
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}
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static int scarlett_ctl_switch_get(struct snd_kcontrol *kctl,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct usb_mixer_elem_info *elem = kctl->private_data;
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int i, err, val;
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for (i = 0; i < elem->channels; i++) {
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err = snd_usb_get_cur_mix_value(elem, i, i, &val);
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if (err < 0)
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return err;
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val = !val; /* invert mute logic for mixer */
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ucontrol->value.integer.value[i] = val;
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}
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return 0;
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}
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static int scarlett_ctl_switch_put(struct snd_kcontrol *kctl,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct usb_mixer_elem_info *elem = kctl->private_data;
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int i, changed = 0;
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int err, oval, val;
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for (i = 0; i < elem->channels; i++) {
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err = snd_usb_get_cur_mix_value(elem, i, i, &oval);
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if (err < 0)
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return err;
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val = ucontrol->value.integer.value[i];
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val = !val;
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if (oval != val) {
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err = snd_usb_set_cur_mix_value(elem, i, i, val);
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if (err < 0)
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return err;
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changed = 1;
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}
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}
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return changed;
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}
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static int scarlett_ctl_resume(struct usb_mixer_elem_list *list)
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{
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struct usb_mixer_elem_info *elem = mixer_elem_list_to_info(list);
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int i;
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for (i = 0; i < elem->channels; i++)
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if (elem->cached & (1 << i))
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snd_usb_set_cur_mix_value(elem, i, i,
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elem->cache_val[i]);
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return 0;
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}
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static int scarlett_ctl_info(struct snd_kcontrol *kctl,
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struct snd_ctl_elem_info *uinfo)
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{
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struct usb_mixer_elem_info *elem = kctl->private_data;
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uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
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uinfo->count = elem->channels;
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uinfo->value.integer.min = 0;
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uinfo->value.integer.max = (int)kctl->private_value +
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SND_SCARLETT_LEVEL_BIAS;
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uinfo->value.integer.step = 1;
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return 0;
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}
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static int scarlett_ctl_get(struct snd_kcontrol *kctl,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct usb_mixer_elem_info *elem = kctl->private_data;
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int i, err, val;
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for (i = 0; i < elem->channels; i++) {
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err = snd_usb_get_cur_mix_value(elem, i, i, &val);
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if (err < 0)
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return err;
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val = clamp(val / 256, -128, (int)kctl->private_value) +
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SND_SCARLETT_LEVEL_BIAS;
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ucontrol->value.integer.value[i] = val;
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}
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return 0;
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}
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static int scarlett_ctl_put(struct snd_kcontrol *kctl,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct usb_mixer_elem_info *elem = kctl->private_data;
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int i, changed = 0;
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int err, oval, val;
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for (i = 0; i < elem->channels; i++) {
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err = snd_usb_get_cur_mix_value(elem, i, i, &oval);
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if (err < 0)
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return err;
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val = ucontrol->value.integer.value[i] -
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SND_SCARLETT_LEVEL_BIAS;
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val = val * 256;
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if (oval != val) {
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err = snd_usb_set_cur_mix_value(elem, i, i, val);
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if (err < 0)
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return err;
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changed = 1;
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}
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}
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return changed;
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}
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static void scarlett_generate_name(int i, char *dst, int offsets[])
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{
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if (i > offsets[SCARLETT_OFFSET_MIX])
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sprintf(dst, "Mix %c",
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'A'+(i - offsets[SCARLETT_OFFSET_MIX] - 1));
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else if (i > offsets[SCARLETT_OFFSET_ADAT])
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sprintf(dst, "ADAT %d", i - offsets[SCARLETT_OFFSET_ADAT]);
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else if (i > offsets[SCARLETT_OFFSET_SPDIF])
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sprintf(dst, "SPDIF %d", i - offsets[SCARLETT_OFFSET_SPDIF]);
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else if (i > offsets[SCARLETT_OFFSET_ANALOG])
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sprintf(dst, "Analog %d", i - offsets[SCARLETT_OFFSET_ANALOG]);
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else if (i > offsets[SCARLETT_OFFSET_PCM])
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sprintf(dst, "PCM %d", i - offsets[SCARLETT_OFFSET_PCM]);
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else
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sprintf(dst, "Off");
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}
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static int scarlett_ctl_enum_dynamic_info(struct snd_kcontrol *kctl,
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struct snd_ctl_elem_info *uinfo)
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{
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struct usb_mixer_elem_info *elem = kctl->private_data;
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struct scarlett_mixer_elem_enum_info *opt = elem->private_data;
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unsigned int items = opt->len;
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uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
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uinfo->count = elem->channels;
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uinfo->value.enumerated.items = items;
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if (uinfo->value.enumerated.item >= items)
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uinfo->value.enumerated.item = items - 1;
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/* generate name dynamically based on item number and offset info */
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scarlett_generate_name(uinfo->value.enumerated.item,
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uinfo->value.enumerated.name,
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opt->offsets);
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return 0;
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}
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static int scarlett_ctl_enum_info(struct snd_kcontrol *kctl,
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struct snd_ctl_elem_info *uinfo)
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{
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struct usb_mixer_elem_info *elem = kctl->private_data;
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struct scarlett_mixer_elem_enum_info *opt = elem->private_data;
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return snd_ctl_enum_info(uinfo, elem->channels, opt->len,
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(const char * const *)opt->names);
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}
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static int scarlett_ctl_enum_get(struct snd_kcontrol *kctl,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct usb_mixer_elem_info *elem = kctl->private_data;
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struct scarlett_mixer_elem_enum_info *opt = elem->private_data;
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int err, val;
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err = snd_usb_get_cur_mix_value(elem, 0, 0, &val);
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if (err < 0)
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return err;
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val = clamp(val - opt->start, 0, opt->len-1);
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ucontrol->value.enumerated.item[0] = val;
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return 0;
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}
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static int scarlett_ctl_enum_put(struct snd_kcontrol *kctl,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct usb_mixer_elem_info *elem = kctl->private_data;
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struct scarlett_mixer_elem_enum_info *opt = elem->private_data;
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int err, oval, val;
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err = snd_usb_get_cur_mix_value(elem, 0, 0, &oval);
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if (err < 0)
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return err;
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val = ucontrol->value.integer.value[0];
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val = val + opt->start;
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if (val != oval) {
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snd_usb_set_cur_mix_value(elem, 0, 0, val);
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return 1;
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}
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return 0;
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}
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static int scarlett_ctl_enum_resume(struct usb_mixer_elem_list *list)
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{
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struct usb_mixer_elem_info *elem = mixer_elem_list_to_info(list);
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if (elem->cached)
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snd_usb_set_cur_mix_value(elem, 0, 0, *elem->cache_val);
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return 0;
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}
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static int scarlett_ctl_meter_get(struct snd_kcontrol *kctl,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct usb_mixer_elem_info *elem = kctl->private_data;
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struct snd_usb_audio *chip = elem->head.mixer->chip;
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unsigned char buf[2 * MAX_CHANNELS] = {0, };
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int wValue = (elem->control << 8) | elem->idx_off;
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int idx = snd_usb_ctrl_intf(chip) | (elem->head.id << 8);
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int err;
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err = snd_usb_ctl_msg(chip->dev,
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usb_rcvctrlpipe(chip->dev, 0),
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UAC2_CS_MEM,
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USB_RECIP_INTERFACE | USB_TYPE_CLASS |
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USB_DIR_IN, wValue, idx, buf, elem->channels);
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if (err < 0)
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return err;
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ucontrol->value.enumerated.item[0] = clamp((int)buf[0], 0, 1);
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return 0;
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}
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|
|
static const struct snd_kcontrol_new usb_scarlett_ctl_switch = {
|
|
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
|
.name = "",
|
|
.info = scarlett_ctl_switch_info,
|
|
.get = scarlett_ctl_switch_get,
|
|
.put = scarlett_ctl_switch_put,
|
|
};
|
|
|
|
static const DECLARE_TLV_DB_SCALE(db_scale_scarlett_gain, -12800, 100, 0);
|
|
|
|
static const struct snd_kcontrol_new usb_scarlett_ctl = {
|
|
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
|
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
|
|
SNDRV_CTL_ELEM_ACCESS_TLV_READ,
|
|
.name = "",
|
|
.info = scarlett_ctl_info,
|
|
.get = scarlett_ctl_get,
|
|
.put = scarlett_ctl_put,
|
|
.private_value = 6, /* max value */
|
|
.tlv = { .p = db_scale_scarlett_gain }
|
|
};
|
|
|
|
static const struct snd_kcontrol_new usb_scarlett_ctl_master = {
|
|
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
|
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
|
|
SNDRV_CTL_ELEM_ACCESS_TLV_READ,
|
|
.name = "",
|
|
.info = scarlett_ctl_info,
|
|
.get = scarlett_ctl_get,
|
|
.put = scarlett_ctl_put,
|
|
.private_value = 6, /* max value */
|
|
.tlv = { .p = db_scale_scarlett_gain }
|
|
};
|
|
|
|
static const struct snd_kcontrol_new usb_scarlett_ctl_enum = {
|
|
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
|
.name = "",
|
|
.info = scarlett_ctl_enum_info,
|
|
.get = scarlett_ctl_enum_get,
|
|
.put = scarlett_ctl_enum_put,
|
|
};
|
|
|
|
static const struct snd_kcontrol_new usb_scarlett_ctl_dynamic_enum = {
|
|
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
|
.name = "",
|
|
.info = scarlett_ctl_enum_dynamic_info,
|
|
.get = scarlett_ctl_enum_get,
|
|
.put = scarlett_ctl_enum_put,
|
|
};
|
|
|
|
static const struct snd_kcontrol_new usb_scarlett_ctl_sync = {
|
|
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
|
.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
|
|
.name = "",
|
|
.info = scarlett_ctl_enum_info,
|
|
.get = scarlett_ctl_meter_get,
|
|
};
|
|
|
|
static int add_new_ctl(struct usb_mixer_interface *mixer,
|
|
const struct snd_kcontrol_new *ncontrol,
|
|
usb_mixer_elem_resume_func_t resume,
|
|
int index, int offset, int num,
|
|
int val_type, int channels, const char *name,
|
|
const struct scarlett_mixer_elem_enum_info *opt,
|
|
struct usb_mixer_elem_info **elem_ret
|
|
)
|
|
{
|
|
struct snd_kcontrol *kctl;
|
|
struct usb_mixer_elem_info *elem;
|
|
int err;
|
|
|
|
elem = kzalloc(sizeof(*elem), GFP_KERNEL);
|
|
if (!elem)
|
|
return -ENOMEM;
|
|
|
|
elem->head.mixer = mixer;
|
|
elem->head.resume = resume;
|
|
elem->control = offset;
|
|
elem->idx_off = num;
|
|
elem->head.id = index;
|
|
elem->val_type = val_type;
|
|
|
|
elem->channels = channels;
|
|
|
|
/* add scarlett_mixer_elem_enum_info struct */
|
|
elem->private_data = (void *)opt;
|
|
|
|
kctl = snd_ctl_new1(ncontrol, elem);
|
|
if (!kctl) {
|
|
kfree(elem);
|
|
return -ENOMEM;
|
|
}
|
|
kctl->private_free = snd_usb_mixer_elem_free;
|
|
|
|
strlcpy(kctl->id.name, name, sizeof(kctl->id.name));
|
|
|
|
err = snd_usb_mixer_add_control(&elem->head, kctl);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
if (elem_ret)
|
|
*elem_ret = elem;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int add_output_ctls(struct usb_mixer_interface *mixer,
|
|
int index, const char *name,
|
|
const struct scarlett_device_info *info)
|
|
{
|
|
int err;
|
|
char mx[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
|
|
struct usb_mixer_elem_info *elem;
|
|
|
|
/* Add mute switch */
|
|
snprintf(mx, sizeof(mx), "Master %d (%s) Playback Switch",
|
|
index + 1, name);
|
|
err = add_new_ctl(mixer, &usb_scarlett_ctl_switch,
|
|
scarlett_ctl_resume, 0x0a, 0x01,
|
|
2*index+1, USB_MIXER_S16, 2, mx, NULL, &elem);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
/* Add volume control and initialize to 0 */
|
|
snprintf(mx, sizeof(mx), "Master %d (%s) Playback Volume",
|
|
index + 1, name);
|
|
err = add_new_ctl(mixer, &usb_scarlett_ctl_master,
|
|
scarlett_ctl_resume, 0x0a, 0x02,
|
|
2*index+1, USB_MIXER_S16, 2, mx, NULL, &elem);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
/* Add L channel source playback enumeration */
|
|
snprintf(mx, sizeof(mx), "Master %dL (%s) Source Playback Enum",
|
|
index + 1, name);
|
|
err = add_new_ctl(mixer, &usb_scarlett_ctl_dynamic_enum,
|
|
scarlett_ctl_enum_resume, 0x33, 0x00,
|
|
2*index, USB_MIXER_S16, 1, mx, &info->opt_master,
|
|
&elem);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
/* Add R channel source playback enumeration */
|
|
snprintf(mx, sizeof(mx), "Master %dR (%s) Source Playback Enum",
|
|
index + 1, name);
|
|
err = add_new_ctl(mixer, &usb_scarlett_ctl_dynamic_enum,
|
|
scarlett_ctl_enum_resume, 0x33, 0x00,
|
|
2*index+1, USB_MIXER_S16, 1, mx, &info->opt_master,
|
|
&elem);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/********************** device-specific config *************************/
|
|
|
|
/* untested... */
|
|
static const struct scarlett_device_info s6i6_info = {
|
|
.matrix_in = 18,
|
|
.matrix_out = 8,
|
|
.input_len = 6,
|
|
.output_len = 6,
|
|
|
|
.opt_master = {
|
|
.start = -1,
|
|
.len = 27,
|
|
.offsets = {0, 12, 16, 18, 18},
|
|
.names = NULL
|
|
},
|
|
|
|
.opt_matrix = {
|
|
.start = -1,
|
|
.len = 19,
|
|
.offsets = {0, 12, 16, 18, 18},
|
|
.names = NULL
|
|
},
|
|
|
|
.num_controls = 9,
|
|
.controls = {
|
|
{ .num = 0, .type = SCARLETT_OUTPUTS, .name = "Monitor" },
|
|
{ .num = 1, .type = SCARLETT_OUTPUTS, .name = "Headphone" },
|
|
{ .num = 2, .type = SCARLETT_OUTPUTS, .name = "SPDIF" },
|
|
{ .num = 1, .type = SCARLETT_SWITCH_IMPEDANCE, .name = NULL},
|
|
{ .num = 1, .type = SCARLETT_SWITCH_PAD, .name = NULL},
|
|
{ .num = 2, .type = SCARLETT_SWITCH_IMPEDANCE, .name = NULL},
|
|
{ .num = 2, .type = SCARLETT_SWITCH_PAD, .name = NULL},
|
|
{ .num = 3, .type = SCARLETT_SWITCH_GAIN, .name = NULL},
|
|
{ .num = 4, .type = SCARLETT_SWITCH_GAIN, .name = NULL},
|
|
},
|
|
|
|
.matrix_mux_init = {
|
|
12, 13, 14, 15, /* Analog -> 1..4 */
|
|
16, 17, /* SPDIF -> 5,6 */
|
|
0, 1, 2, 3, 4, 5, 6, 7, /* PCM[1..12] -> 7..18 */
|
|
8, 9, 10, 11
|
|
}
|
|
};
|
|
|
|
/* untested... */
|
|
static const struct scarlett_device_info s8i6_info = {
|
|
.matrix_in = 18,
|
|
.matrix_out = 6,
|
|
.input_len = 8,
|
|
.output_len = 6,
|
|
|
|
.opt_master = {
|
|
.start = -1,
|
|
.len = 25,
|
|
.offsets = {0, 12, 16, 18, 18},
|
|
.names = NULL
|
|
},
|
|
|
|
.opt_matrix = {
|
|
.start = -1,
|
|
.len = 19,
|
|
.offsets = {0, 12, 16, 18, 18},
|
|
.names = NULL
|
|
},
|
|
|
|
.num_controls = 7,
|
|
.controls = {
|
|
{ .num = 0, .type = SCARLETT_OUTPUTS, .name = "Monitor" },
|
|
{ .num = 1, .type = SCARLETT_OUTPUTS, .name = "Headphone" },
|
|
{ .num = 2, .type = SCARLETT_OUTPUTS, .name = "SPDIF" },
|
|
{ .num = 1, .type = SCARLETT_SWITCH_IMPEDANCE, .name = NULL},
|
|
{ .num = 2, .type = SCARLETT_SWITCH_IMPEDANCE, .name = NULL},
|
|
{ .num = 3, .type = SCARLETT_SWITCH_PAD, .name = NULL},
|
|
{ .num = 4, .type = SCARLETT_SWITCH_PAD, .name = NULL},
|
|
},
|
|
|
|
.matrix_mux_init = {
|
|
12, 13, 14, 15, /* Analog -> 1..4 */
|
|
16, 17, /* SPDIF -> 5,6 */
|
|
0, 1, 2, 3, 4, 5, 6, 7, /* PCM[1..12] -> 7..18 */
|
|
8, 9, 10, 11
|
|
}
|
|
};
|
|
|
|
static const struct scarlett_device_info s18i6_info = {
|
|
.matrix_in = 18,
|
|
.matrix_out = 6,
|
|
.input_len = 18,
|
|
.output_len = 6,
|
|
|
|
.opt_master = {
|
|
.start = -1,
|
|
.len = 31,
|
|
.offsets = {0, 6, 14, 16, 24},
|
|
.names = NULL,
|
|
},
|
|
|
|
.opt_matrix = {
|
|
.start = -1,
|
|
.len = 25,
|
|
.offsets = {0, 6, 14, 16, 24},
|
|
.names = NULL,
|
|
},
|
|
|
|
.num_controls = 5,
|
|
.controls = {
|
|
{ .num = 0, .type = SCARLETT_OUTPUTS, .name = "Monitor" },
|
|
{ .num = 1, .type = SCARLETT_OUTPUTS, .name = "Headphone" },
|
|
{ .num = 2, .type = SCARLETT_OUTPUTS, .name = "SPDIF" },
|
|
{ .num = 1, .type = SCARLETT_SWITCH_IMPEDANCE, .name = NULL},
|
|
{ .num = 2, .type = SCARLETT_SWITCH_IMPEDANCE, .name = NULL},
|
|
},
|
|
|
|
.matrix_mux_init = {
|
|
6, 7, 8, 9, 10, 11, 12, 13, /* Analog -> 1..8 */
|
|
16, 17, 18, 19, 20, 21, /* ADAT[1..6] -> 9..14 */
|
|
14, 15, /* SPDIF -> 15,16 */
|
|
0, 1 /* PCM[1,2] -> 17,18 */
|
|
}
|
|
};
|
|
|
|
static const struct scarlett_device_info s18i8_info = {
|
|
.matrix_in = 18,
|
|
.matrix_out = 8,
|
|
.input_len = 18,
|
|
.output_len = 8,
|
|
|
|
.opt_master = {
|
|
.start = -1,
|
|
.len = 35,
|
|
.offsets = {0, 8, 16, 18, 26},
|
|
.names = NULL
|
|
},
|
|
|
|
.opt_matrix = {
|
|
.start = -1,
|
|
.len = 27,
|
|
.offsets = {0, 8, 16, 18, 26},
|
|
.names = NULL
|
|
},
|
|
|
|
.num_controls = 10,
|
|
.controls = {
|
|
{ .num = 0, .type = SCARLETT_OUTPUTS, .name = "Monitor" },
|
|
{ .num = 1, .type = SCARLETT_OUTPUTS, .name = "Headphone 1" },
|
|
{ .num = 2, .type = SCARLETT_OUTPUTS, .name = "Headphone 2" },
|
|
{ .num = 3, .type = SCARLETT_OUTPUTS, .name = "SPDIF" },
|
|
{ .num = 1, .type = SCARLETT_SWITCH_IMPEDANCE, .name = NULL},
|
|
{ .num = 1, .type = SCARLETT_SWITCH_PAD, .name = NULL},
|
|
{ .num = 2, .type = SCARLETT_SWITCH_IMPEDANCE, .name = NULL},
|
|
{ .num = 2, .type = SCARLETT_SWITCH_PAD, .name = NULL},
|
|
{ .num = 3, .type = SCARLETT_SWITCH_PAD, .name = NULL},
|
|
{ .num = 4, .type = SCARLETT_SWITCH_PAD, .name = NULL},
|
|
},
|
|
|
|
.matrix_mux_init = {
|
|
8, 9, 10, 11, 12, 13, 14, 15, /* Analog -> 1..8 */
|
|
18, 19, 20, 21, 22, 23, /* ADAT[1..6] -> 9..14 */
|
|
16, 17, /* SPDIF -> 15,16 */
|
|
0, 1 /* PCM[1,2] -> 17,18 */
|
|
}
|
|
};
|
|
|
|
static const struct scarlett_device_info s18i20_info = {
|
|
.matrix_in = 18,
|
|
.matrix_out = 8,
|
|
.input_len = 18,
|
|
.output_len = 20,
|
|
|
|
.opt_master = {
|
|
.start = -1,
|
|
.len = 47,
|
|
.offsets = {0, 20, 28, 30, 38},
|
|
.names = NULL
|
|
},
|
|
|
|
.opt_matrix = {
|
|
.start = -1,
|
|
.len = 39,
|
|
.offsets = {0, 20, 28, 30, 38},
|
|
.names = NULL
|
|
},
|
|
|
|
.num_controls = 10,
|
|
.controls = {
|
|
{ .num = 0, .type = SCARLETT_OUTPUTS, .name = "Monitor" },
|
|
{ .num = 1, .type = SCARLETT_OUTPUTS, .name = "Line 3/4" },
|
|
{ .num = 2, .type = SCARLETT_OUTPUTS, .name = "Line 5/6" },
|
|
{ .num = 3, .type = SCARLETT_OUTPUTS, .name = "Line 7/8" },
|
|
{ .num = 4, .type = SCARLETT_OUTPUTS, .name = "Line 9/10" },
|
|
{ .num = 5, .type = SCARLETT_OUTPUTS, .name = "SPDIF" },
|
|
{ .num = 6, .type = SCARLETT_OUTPUTS, .name = "ADAT 1/2" },
|
|
{ .num = 7, .type = SCARLETT_OUTPUTS, .name = "ADAT 3/4" },
|
|
{ .num = 8, .type = SCARLETT_OUTPUTS, .name = "ADAT 5/6" },
|
|
{ .num = 9, .type = SCARLETT_OUTPUTS, .name = "ADAT 7/8" },
|
|
/*{ .num = 1, .type = SCARLETT_SWITCH_IMPEDANCE, .name = NULL},
|
|
{ .num = 1, .type = SCARLETT_SWITCH_PAD, .name = NULL},
|
|
{ .num = 2, .type = SCARLETT_SWITCH_IMPEDANCE, .name = NULL},
|
|
{ .num = 2, .type = SCARLETT_SWITCH_PAD, .name = NULL},
|
|
{ .num = 3, .type = SCARLETT_SWITCH_PAD, .name = NULL},
|
|
{ .num = 4, .type = SCARLETT_SWITCH_PAD, .name = NULL},*/
|
|
},
|
|
|
|
.matrix_mux_init = {
|
|
20, 21, 22, 23, 24, 25, 26, 27, /* Analog -> 1..8 */
|
|
30, 31, 32, 33, 34, 35, /* ADAT[1..6] -> 9..14 */
|
|
28, 29, /* SPDIF -> 15,16 */
|
|
0, 1 /* PCM[1,2] -> 17,18 */
|
|
}
|
|
};
|
|
|
|
|
|
static int scarlett_controls_create_generic(struct usb_mixer_interface *mixer,
|
|
const struct scarlett_device_info *info)
|
|
{
|
|
int i, err;
|
|
char mx[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
|
|
const struct scarlett_mixer_control *ctl;
|
|
struct usb_mixer_elem_info *elem;
|
|
|
|
/* create master switch and playback volume */
|
|
err = add_new_ctl(mixer, &usb_scarlett_ctl_switch,
|
|
scarlett_ctl_resume, 0x0a, 0x01, 0,
|
|
USB_MIXER_S16, 1, "Master Playback Switch", NULL,
|
|
&elem);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
err = add_new_ctl(mixer, &usb_scarlett_ctl_master,
|
|
scarlett_ctl_resume, 0x0a, 0x02, 0,
|
|
USB_MIXER_S16, 1, "Master Playback Volume", NULL,
|
|
&elem);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
/* iterate through controls in info struct and create each one */
|
|
for (i = 0; i < info->num_controls; i++) {
|
|
ctl = &info->controls[i];
|
|
|
|
switch (ctl->type) {
|
|
case SCARLETT_OUTPUTS:
|
|
err = add_output_ctls(mixer, ctl->num, ctl->name, info);
|
|
if (err < 0)
|
|
return err;
|
|
break;
|
|
case SCARLETT_SWITCH_IMPEDANCE:
|
|
sprintf(mx, "Input %d Impedance Switch", ctl->num);
|
|
err = add_new_ctl(mixer, &usb_scarlett_ctl_enum,
|
|
scarlett_ctl_enum_resume, 0x01,
|
|
0x09, ctl->num, USB_MIXER_S16, 1, mx,
|
|
&opt_impedance, &elem);
|
|
if (err < 0)
|
|
return err;
|
|
break;
|
|
case SCARLETT_SWITCH_PAD:
|
|
sprintf(mx, "Input %d Pad Switch", ctl->num);
|
|
err = add_new_ctl(mixer, &usb_scarlett_ctl_enum,
|
|
scarlett_ctl_enum_resume, 0x01,
|
|
0x0b, ctl->num, USB_MIXER_S16, 1, mx,
|
|
&opt_pad, &elem);
|
|
if (err < 0)
|
|
return err;
|
|
break;
|
|
case SCARLETT_SWITCH_GAIN:
|
|
sprintf(mx, "Input %d Gain Switch", ctl->num);
|
|
err = add_new_ctl(mixer, &usb_scarlett_ctl_enum,
|
|
scarlett_ctl_enum_resume, 0x01,
|
|
0x08, ctl->num, USB_MIXER_S16, 1, mx,
|
|
&opt_gain, &elem);
|
|
if (err < 0)
|
|
return err;
|
|
break;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Create and initialize a mixer for the Focusrite(R) Scarlett
|
|
*/
|
|
int snd_scarlett_controls_create(struct usb_mixer_interface *mixer)
|
|
{
|
|
int err, i, o;
|
|
char mx[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
|
|
const struct scarlett_device_info *info;
|
|
struct usb_mixer_elem_info *elem;
|
|
static char sample_rate_buffer[4] = { '\x80', '\xbb', '\x00', '\x00' };
|
|
|
|
/* only use UAC_VERSION_2 */
|
|
if (!mixer->protocol)
|
|
return 0;
|
|
|
|
switch (mixer->chip->usb_id) {
|
|
case USB_ID(0x1235, 0x8012):
|
|
info = &s6i6_info;
|
|
break;
|
|
case USB_ID(0x1235, 0x8002):
|
|
info = &s8i6_info;
|
|
break;
|
|
case USB_ID(0x1235, 0x8004):
|
|
info = &s18i6_info;
|
|
break;
|
|
case USB_ID(0x1235, 0x8014):
|
|
info = &s18i8_info;
|
|
break;
|
|
case USB_ID(0x1235, 0x800c):
|
|
info = &s18i20_info;
|
|
break;
|
|
default: /* device not (yet) supported */
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* generic function to create controls */
|
|
err = scarlett_controls_create_generic(mixer, info);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
/* setup matrix controls */
|
|
for (i = 0; i < info->matrix_in; i++) {
|
|
snprintf(mx, sizeof(mx), "Matrix %02d Input Playback Route",
|
|
i+1);
|
|
err = add_new_ctl(mixer, &usb_scarlett_ctl_dynamic_enum,
|
|
scarlett_ctl_enum_resume, 0x32,
|
|
0x06, i, USB_MIXER_S16, 1, mx,
|
|
&info->opt_matrix, &elem);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
for (o = 0; o < info->matrix_out; o++) {
|
|
sprintf(mx, "Matrix %02d Mix %c Playback Volume", i+1,
|
|
o+'A');
|
|
err = add_new_ctl(mixer, &usb_scarlett_ctl,
|
|
scarlett_ctl_resume, 0x3c, 0x00,
|
|
(i << 3) + (o & 0x07), USB_MIXER_S16,
|
|
1, mx, NULL, &elem);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < info->input_len; i++) {
|
|
snprintf(mx, sizeof(mx), "Input Source %02d Capture Route",
|
|
i+1);
|
|
err = add_new_ctl(mixer, &usb_scarlett_ctl_dynamic_enum,
|
|
scarlett_ctl_enum_resume, 0x34,
|
|
0x00, i, USB_MIXER_S16, 1, mx,
|
|
&info->opt_master, &elem);
|
|
if (err < 0)
|
|
return err;
|
|
}
|
|
|
|
/* val_len == 1 needed here */
|
|
err = add_new_ctl(mixer, &usb_scarlett_ctl_enum,
|
|
scarlett_ctl_enum_resume, 0x28, 0x01, 0,
|
|
USB_MIXER_U8, 1, "Sample Clock Source",
|
|
&opt_clock, &elem);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
/* val_len == 1 and UAC2_CS_MEM */
|
|
err = add_new_ctl(mixer, &usb_scarlett_ctl_sync, NULL, 0x3c, 0x00, 2,
|
|
USB_MIXER_U8, 1, "Sample Clock Sync Status",
|
|
&opt_sync, &elem);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
/* initialize sampling rate to 48000 */
|
|
err = snd_usb_ctl_msg(mixer->chip->dev,
|
|
usb_sndctrlpipe(mixer->chip->dev, 0), UAC2_CS_CUR,
|
|
USB_RECIP_INTERFACE | USB_TYPE_CLASS |
|
|
USB_DIR_OUT, 0x0100, snd_usb_ctrl_intf(mixer->chip) |
|
|
(0x29 << 8), sample_rate_buffer, 4);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
return err;
|
|
}
|