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+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Focusrite Scarlett 2 Protocol Driver for ALSA
+ * (including Scarlett 2nd Gen, 3rd Gen, Clarett USB, and Clarett+
+ * series products)
+ *
+ * Supported models:
+ * - 6i6/18i8/18i20 Gen 2
+ * - Solo/2i2/4i4/8i6/18i8/18i20 Gen 3
+ * - Clarett 2Pre/4Pre/8Pre USB
+ * - Clarett+ 2Pre/4Pre/8Pre
+ *
+ * Copyright (c) 2018-2023 by Geoffrey D. Bennett <g at b4.vu>
+ * Copyright (c) 2020-2021 by Vladimir Sadovnikov <sadko4u@gmail.com>
+ * Copyright (c) 2022 by Christian Colglazier <christian@cacolglazier.com>
+ *
+ * Based on the Scarlett (Gen 1) Driver for ALSA:
+ *
+ * Copyright (c) 2013 by Tobias Hoffmann
+ * Copyright (c) 2013 by Robin Gareus <robin at gareus.org>
+ * Copyright (c) 2002 by Takashi Iwai <tiwai at suse.de>
+ * Copyright (c) 2014 by Chris J Arges <chris.j.arges at canonical.com>
+ *
+ * Many codes borrowed from audio.c by
+ * Alan Cox (alan at lxorguk.ukuu.org.uk)
+ * Thomas Sailer (sailer at ife.ee.ethz.ch)
+ *
+ * Code cleanup:
+ * David Henningsson <david.henningsson at canonical.com>
+ */
+
+/* The protocol was reverse engineered by looking at the communication
+ * between Focusrite Control 2.3.4 and the Focusrite(R) Scarlett 18i20
+ * (firmware 1083) using usbmon in July-August 2018.
+ *
+ * Scarlett 18i8 support added in April 2019.
+ *
+ * Scarlett 6i6 support added in June 2019 (thanks to Martin Wittmann
+ * for providing usbmon output and testing).
+ *
+ * Scarlett 4i4/8i6 Gen 3 support added in May 2020 (thanks to Laurent
+ * Debricon for donating a 4i4 and to Fredrik Unger for providing 8i6
+ * usbmon output and testing).
+ *
+ * Scarlett 18i8/18i20 Gen 3 support added in June 2020 (thanks to
+ * Darren Jaeckel, Alex Sedlack, and Clovis Lunel for providing usbmon
+ * output, protocol traces and testing).
+ *
+ * Support for loading mixer volume and mux configuration from the
+ * interface during driver initialisation added in May 2021 (thanks to
+ * Vladimir Sadovnikov for figuring out how).
+ *
+ * Support for Solo/2i2 Gen 3 added in May 2021 (thanks to Alexander
+ * Vorona for 2i2 protocol traces).
+ *
+ * Support for phantom power, direct monitoring, speaker switching,
+ * and talkback added in May-June 2021.
+ *
+ * Support for Clarett+ 8Pre added in Aug 2022 by Christian
+ * Colglazier.
+ *
+ * Support for Clarett 8Pre USB added in Sep 2023 (thanks to Philippe
+ * Perrot for confirmation).
+ *
+ * Support for Clarett+ 4Pre and 2Pre added in Sep 2023 (thanks to
+ * Gregory Rozzo for donating a 4Pre, and David Sherwood and Patrice
+ * Peterson for usbmon output).
+ *
+ * Support for Clarett 2Pre and 4Pre USB added in Oct 2023.
+ *
+ * This ALSA mixer gives access to (model-dependent):
+ * - input, output, mixer-matrix muxes
+ * - mixer-matrix gain stages
+ * - gain/volume/mute controls
+ * - level meters
+ * - line/inst level, pad, and air controls
+ * - phantom power, direct monitor, speaker switching, and talkback
+ * controls
+ * - disable/enable MSD mode
+ * - disable/enable standalone mode
+ *
+ * <ditaa>
+ * /--------------\ 18chn 20chn /--------------\
+ * | Hardware in +--+------\ /-------------+--+ ALSA PCM out |
+ * \--------------/ | | | | \--------------/
+ * | | | /-----\ |
+ * | | | | | |
+ * | v v v | |
+ * | +---------------+ | |
+ * | \ Matrix Mux / | |
+ * | +-----+-----+ | |
+ * | | | |
+ * | |18chn | |
+ * | | | |
+ * | | 10chn| |
+ * | v | |
+ * | +------------+ | |
+ * | | Mixer | | |
+ * | | Matrix | | |
+ * | | | | |
+ * | | 18x10 Gain | | |
+ * | | stages | | |
+ * | +-----+------+ | |
+ * | | | |
+ * |18chn |10chn | |20chn
+ * | | | |
+ * | +----------/ |
+ * | | |
+ * v v v
+ * ===========================
+ * +---------------+ +--—------------+
+ * \ Output Mux / \ Capture Mux /
+ * +---+---+---+ +-----+-----+
+ * | | |
+ * 10chn| | |18chn
+ * | | |
+ * /--------------\ | | | /--------------\
+ * | S/PDIF, ADAT |<--/ |10chn \-->| ALSA PCM in |
+ * | Hardware out | | \--------------/
+ * \--------------/ |
+ * v
+ * +-------------+ Software gain per channel.
+ * | Master Gain |<-- 18i20 only: Switch per channel
+ * +------+------+ to select HW or SW gain control.
+ * |
+ * |10chn
+ * /--------------\ |
+ * | Analogue |<------/
+ * | Hardware out |
+ * \--------------/
+ * </ditaa>
+ *
+ * Gen 3 devices have a Mass Storage Device (MSD) mode where a small
+ * disk with registration and driver download information is presented
+ * to the host. To access the full functionality of the device without
+ * proprietary software, MSD mode can be disabled by:
+ * - holding down the 48V button for five seconds while powering on
+ * the device, or
+ * - using this driver and alsamixer to change the "MSD Mode" setting
+ * to Off and power-cycling the device
+ */
+
+#include <linux/slab.h>
+#include <linux/usb.h>
+#include <linux/moduleparam.h>
+
+#include <sound/control.h>
+#include <sound/tlv.h>
+
+#include "usbaudio.h"
+#include "mixer.h"
+#include "helper.h"
+
+#include "mixer_scarlett2.h"
+
+/* device_setup value to allow turning MSD mode back on */
+#define SCARLETT2_MSD_ENABLE 0x02
+
+/* device_setup value to disable this mixer driver */
+#define SCARLETT2_DISABLE 0x04
+
+/* some gui mixers can't handle negative ctl values */
+#define SCARLETT2_VOLUME_BIAS 127
+
+/* mixer range from -80dB to +6dB in 0.5dB steps */
+#define SCARLETT2_MIXER_MIN_DB -80
+#define SCARLETT2_MIXER_BIAS (-SCARLETT2_MIXER_MIN_DB * 2)
+#define SCARLETT2_MIXER_MAX_DB 6
+#define SCARLETT2_MIXER_MAX_VALUE \
+ ((SCARLETT2_MIXER_MAX_DB - SCARLETT2_MIXER_MIN_DB) * 2)
+#define SCARLETT2_MIXER_VALUE_COUNT (SCARLETT2_MIXER_MAX_VALUE + 1)
+
+/* map from (dB + 80) * 2 to mixer value
+ * for dB in 0 .. 172: int(8192 * pow(10, ((dB - 160) / 2 / 20)))
+ */
+static const u16 scarlett2_mixer_values[SCARLETT2_MIXER_VALUE_COUNT] = {
+ 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2,
+ 2, 2, 3, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 6, 6, 6, 7, 7, 8, 8,
+ 9, 9, 10, 10, 11, 12, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21,
+ 23, 24, 25, 27, 29, 30, 32, 34, 36, 38, 41, 43, 46, 48, 51,
+ 54, 57, 61, 65, 68, 73, 77, 81, 86, 91, 97, 103, 109, 115,
+ 122, 129, 137, 145, 154, 163, 173, 183, 194, 205, 217, 230,
+ 244, 259, 274, 290, 307, 326, 345, 365, 387, 410, 434, 460,
+ 487, 516, 547, 579, 614, 650, 689, 730, 773, 819, 867, 919,
+ 973, 1031, 1092, 1157, 1225, 1298, 1375, 1456, 1543, 1634,
+ 1731, 1833, 1942, 2057, 2179, 2308, 2445, 2590, 2744, 2906,
+ 3078, 3261, 3454, 3659, 3876, 4105, 4349, 4606, 4879, 5168,
+ 5475, 5799, 6143, 6507, 6892, 7301, 7733, 8192, 8677, 9191,
+ 9736, 10313, 10924, 11571, 12257, 12983, 13752, 14567, 15430,
+ 16345
+};
+
+/* Maximum number of analogue outputs */
+#define SCARLETT2_ANALOGUE_MAX 10
+
+/* Maximum number of level and pad switches */
+#define SCARLETT2_LEVEL_SWITCH_MAX 2
+#define SCARLETT2_PAD_SWITCH_MAX 8
+#define SCARLETT2_AIR_SWITCH_MAX 8
+#define SCARLETT2_PHANTOM_SWITCH_MAX 2
+
+/* Maximum number of inputs to the mixer */
+#define SCARLETT2_INPUT_MIX_MAX 25
+
+/* Maximum number of outputs from the mixer */
+#define SCARLETT2_OUTPUT_MIX_MAX 12
+
+/* Maximum size of the data in the USB mux assignment message:
+ * 20 inputs, 20 outputs, 25 matrix inputs, 12 spare
+ */
+#define SCARLETT2_MUX_MAX 77
+
+/* Maximum number of sources (sum of input port counts) */
+#define SCARLETT2_MAX_SRCS 52
+
+/* Maximum number of meters (sum of output port counts) */
+#define SCARLETT2_MAX_METERS 65
+
+/* There are different sets of configuration parameters across the
+ * devices, dependent on series and model.
+ */
+enum {
+ SCARLETT2_CONFIG_SET_GEN_2 = 0,
+ SCARLETT2_CONFIG_SET_GEN_3A = 1,
+ SCARLETT2_CONFIG_SET_GEN_3B = 2,
+ SCARLETT2_CONFIG_SET_CLARETT = 3,
+ SCARLETT2_CONFIG_SET_COUNT = 4
+};
+
+/* Hardware port types:
+ * - None (no input to mux)
+ * - Analogue I/O
+ * - S/PDIF I/O
+ * - ADAT I/O
+ * - Mixer I/O
+ * - PCM I/O
+ */
+enum {
+ SCARLETT2_PORT_TYPE_NONE = 0,
+ SCARLETT2_PORT_TYPE_ANALOGUE = 1,
+ SCARLETT2_PORT_TYPE_SPDIF = 2,
+ SCARLETT2_PORT_TYPE_ADAT = 3,
+ SCARLETT2_PORT_TYPE_MIX = 4,
+ SCARLETT2_PORT_TYPE_PCM = 5,
+ SCARLETT2_PORT_TYPE_COUNT = 6,
+};
+
+/* I/O count of each port type kept in struct scarlett2_ports */
+enum {
+ SCARLETT2_PORT_IN = 0,
+ SCARLETT2_PORT_OUT = 1,
+ SCARLETT2_PORT_DIRNS = 2,
+};
+
+/* Dim/Mute buttons on the 18i20 */
+enum {
+ SCARLETT2_BUTTON_MUTE = 0,
+ SCARLETT2_BUTTON_DIM = 1,
+ SCARLETT2_DIM_MUTE_COUNT = 2,
+};
+
+static const char *const scarlett2_dim_mute_names[SCARLETT2_DIM_MUTE_COUNT] = {
+ "Mute Playback Switch", "Dim Playback Switch"
+};
+
+/* Description of each hardware port type:
+ * - id: hardware ID of this port type
+ * - src_descr: printf format string for mux input selections
+ * - src_num_offset: added to channel number for the fprintf
+ * - dst_descr: printf format string for mixer controls
+ */
+struct scarlett2_port {
+ u16 id;
+ const char * const src_descr;
+ int src_num_offset;
+ const char * const dst_descr;
+};
+
+static const struct scarlett2_port scarlett2_ports[SCARLETT2_PORT_TYPE_COUNT] = {
+ [SCARLETT2_PORT_TYPE_NONE] = {
+ .id = 0x000,
+ .src_descr = "Off"
+ },
+ [SCARLETT2_PORT_TYPE_ANALOGUE] = {
+ .id = 0x080,
+ .src_descr = "Analogue %d",
+ .src_num_offset = 1,
+ .dst_descr = "Analogue Output %02d Playback"
+ },
+ [SCARLETT2_PORT_TYPE_SPDIF] = {
+ .id = 0x180,
+ .src_descr = "S/PDIF %d",
+ .src_num_offset = 1,
+ .dst_descr = "S/PDIF Output %d Playback"
+ },
+ [SCARLETT2_PORT_TYPE_ADAT] = {
+ .id = 0x200,
+ .src_descr = "ADAT %d",
+ .src_num_offset = 1,
+ .dst_descr = "ADAT Output %d Playback"
+ },
+ [SCARLETT2_PORT_TYPE_MIX] = {
+ .id = 0x300,
+ .src_descr = "Mix %c",
+ .src_num_offset = 'A',
+ .dst_descr = "Mixer Input %02d Capture"
+ },
+ [SCARLETT2_PORT_TYPE_PCM] = {
+ .id = 0x600,
+ .src_descr = "PCM %d",
+ .src_num_offset = 1,
+ .dst_descr = "PCM %02d Capture"
+ },
+};
+
+/* Number of mux tables: one for each band of sample rates
+ * (44.1/48kHz, 88.2/96kHz, and 176.4/176kHz)
+ */
+#define SCARLETT2_MUX_TABLES 3
+
+/* Maximum number of entries in a mux table */
+#define SCARLETT2_MAX_MUX_ENTRIES 10
+
+/* One entry within mux_assignment defines the port type and range of
+ * ports to add to the set_mux message. The end of the list is marked
+ * with count == 0.
+ */
+struct scarlett2_mux_entry {
+ u8 port_type;
+ u8 start;
+ u8 count;
+};
+
+/* Maximum number of entries in a mux table */
+#define SCARLETT2_MAX_METER_ENTRIES 9
+
+/* One entry within meter_assignment defines the range of mux outputs
+ * that consecutive meter entries are mapped to. The end of the list
+ * is marked with count == 0.
+ */
+struct scarlett2_meter_entry {
+ u8 start;
+ u8 count;
+};
+
+struct scarlett2_device_info {
+ /* Gen 3 devices have an internal MSD mode switch that needs
+ * to be disabled in order to access the full functionality of
+ * the device.
+ */
+ u8 has_msd_mode;
+
+ /* which set of configuration parameters the device uses */
+ u8 config_set;
+
+ /* line out hw volume is sw controlled */
+ u8 line_out_hw_vol;
+
+ /* support for main/alt speaker switching */
+ u8 has_speaker_switching;
+
+ /* support for talkback microphone */
+ u8 has_talkback;
+
+ /* the number of analogue inputs with a software switchable
+ * level control that can be set to line or instrument
+ */
+ u8 level_input_count;
+
+ /* the first input with a level control (0-based) */
+ u8 level_input_first;
+
+ /* the number of analogue inputs with a software switchable
+ * 10dB pad control
+ */
+ u8 pad_input_count;
+
+ /* the number of analogue inputs with a software switchable
+ * "air" control
+ */
+ u8 air_input_count;
+
+ /* the number of phantom (48V) software switchable controls */
+ u8 phantom_count;
+
+ /* the number of inputs each phantom switch controls */
+ u8 inputs_per_phantom;
+
+ /* the number of direct monitor options
+ * (0 = none, 1 = mono only, 2 = mono/stereo)
+ */
+ u8 direct_monitor;
+
+ /* remap analogue outputs; 18i8 Gen 3 has "line 3/4" connected
+ * internally to the analogue 7/8 outputs
+ */
+ u8 line_out_remap_enable;
+ u8 line_out_remap[SCARLETT2_ANALOGUE_MAX];
+ u8 line_out_unmap[SCARLETT2_ANALOGUE_MAX];
+
+ /* additional description for the line out volume controls */
+ const char * const line_out_descrs[SCARLETT2_ANALOGUE_MAX];
+
+ /* number of sources/destinations of each port type */
+ const int port_count[SCARLETT2_PORT_TYPE_COUNT][SCARLETT2_PORT_DIRNS];
+
+ /* layout/order of the entries in the set_mux message */
+ struct scarlett2_mux_entry mux_assignment[SCARLETT2_MUX_TABLES]
+ [SCARLETT2_MAX_MUX_ENTRIES];
+
+ /* map from meter level order returned by
+ * SCARLETT2_USB_GET_METER to index into mux[] entries (same
+ * as the order returned by scarlett2_meter_ctl_get())
+ */
+ struct scarlett2_meter_entry meter_map[SCARLETT2_MAX_METER_ENTRIES];
+};
+
+struct scarlett2_data {
+ struct usb_mixer_interface *mixer;
+ struct mutex usb_mutex; /* prevent sending concurrent USB requests */
+ struct mutex data_mutex; /* lock access to this data */
+ struct delayed_work work;
+ const struct scarlett2_device_info *info;
+ const char *series_name;
+ __u8 bInterfaceNumber;
+ __u8 bEndpointAddress;
+ __u16 wMaxPacketSize;
+ __u8 bInterval;
+ int num_mux_srcs;
+ int num_mux_dsts;
+ u32 firmware_version;
+ u16 scarlett2_seq;
+ u8 sync_updated;
+ u8 vol_updated;
+ u8 input_other_updated;
+ u8 monitor_other_updated;
+ u8 mux_updated;
+ u8 speaker_switching_switched;
+ u8 sync;
+ u8 master_vol;
+ u8 vol[SCARLETT2_ANALOGUE_MAX];
+ u8 vol_sw_hw_switch[SCARLETT2_ANALOGUE_MAX];
+ u8 mute_switch[SCARLETT2_ANALOGUE_MAX];
+ u8 level_switch[SCARLETT2_LEVEL_SWITCH_MAX];
+ u8 pad_switch[SCARLETT2_PAD_SWITCH_MAX];
+ u8 dim_mute[SCARLETT2_DIM_MUTE_COUNT];
+ u8 air_switch[SCARLETT2_AIR_SWITCH_MAX];
+ u8 phantom_switch[SCARLETT2_PHANTOM_SWITCH_MAX];
+ u8 phantom_persistence;
+ u8 direct_monitor_switch;
+ u8 speaker_switching_switch;
+ u8 talkback_switch;
+ u8 talkback_map[SCARLETT2_OUTPUT_MIX_MAX];
+ u8 msd_switch;
+ u8 standalone_switch;
+ u8 meter_level_map[SCARLETT2_MAX_METERS];
+ struct snd_kcontrol *sync_ctl;
+ struct snd_kcontrol *master_vol_ctl;
+ struct snd_kcontrol *vol_ctls[SCARLETT2_ANALOGUE_MAX];
+ struct snd_kcontrol *sw_hw_ctls[SCARLETT2_ANALOGUE_MAX];
+ struct snd_kcontrol *mute_ctls[SCARLETT2_ANALOGUE_MAX];
+ struct snd_kcontrol *dim_mute_ctls[SCARLETT2_DIM_MUTE_COUNT];
+ struct snd_kcontrol *level_ctls[SCARLETT2_LEVEL_SWITCH_MAX];
+ struct snd_kcontrol *pad_ctls[SCARLETT2_PAD_SWITCH_MAX];
+ struct snd_kcontrol *air_ctls[SCARLETT2_AIR_SWITCH_MAX];
+ struct snd_kcontrol *phantom_ctls[SCARLETT2_PHANTOM_SWITCH_MAX];
+ struct snd_kcontrol *mux_ctls[SCARLETT2_MUX_MAX];
+ struct snd_kcontrol *direct_monitor_ctl;
+ struct snd_kcontrol *speaker_switching_ctl;
+ struct snd_kcontrol *talkback_ctl;
+ u8 mux[SCARLETT2_MUX_MAX];
+ u8 mix[SCARLETT2_INPUT_MIX_MAX * SCARLETT2_OUTPUT_MIX_MAX];
+};
+
+/*** Model-specific data ***/
+
+static const struct scarlett2_device_info s6i6_gen2_info = {
+ .config_set = SCARLETT2_CONFIG_SET_GEN_2,
+ .level_input_count = 2,
+ .pad_input_count = 2,
+
+ .line_out_descrs = {
+ "Headphones 1 L",
+ "Headphones 1 R",
+ "Headphones 2 L",
+ "Headphones 2 R",
+ },
+
+ .port_count = {
+ [SCARLETT2_PORT_TYPE_NONE] = { 1, 0 },
+ [SCARLETT2_PORT_TYPE_ANALOGUE] = { 4, 4 },
+ [SCARLETT2_PORT_TYPE_SPDIF] = { 2, 2 },
+ [SCARLETT2_PORT_TYPE_MIX] = { 10, 18 },
+ [SCARLETT2_PORT_TYPE_PCM] = { 6, 6 },
+ },
+
+ .mux_assignment = { {
+ { SCARLETT2_PORT_TYPE_PCM, 0, 6 },
+ { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 4 },
+ { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
+ { SCARLETT2_PORT_TYPE_MIX, 0, 18 },
+ { SCARLETT2_PORT_TYPE_NONE, 0, 8 },
+ { 0, 0, 0 },
+ }, {
+ { SCARLETT2_PORT_TYPE_PCM, 0, 6 },
+ { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 4 },
+ { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
+ { SCARLETT2_PORT_TYPE_MIX, 0, 18 },
+ { SCARLETT2_PORT_TYPE_NONE, 0, 8 },
+ { 0, 0, 0 },
+ }, {
+ { SCARLETT2_PORT_TYPE_PCM, 0, 6 },
+ { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 4 },
+ { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
+ { SCARLETT2_PORT_TYPE_MIX, 0, 18 },
+ { SCARLETT2_PORT_TYPE_NONE, 0, 8 },
+ { 0, 0, 0 },
+ } },
+
+ .meter_map = {
+ { 24, 6 },
+ { 0, 24 },
+ { 0, 0 },
+ }
+};
+
+static const struct scarlett2_device_info s18i8_gen2_info = {
+ .config_set = SCARLETT2_CONFIG_SET_GEN_2,
+ .level_input_count = 2,
+ .pad_input_count = 4,
+
+ .line_out_descrs = {
+ "Monitor L",
+ "Monitor R",
+ "Headphones 1 L",
+ "Headphones 1 R",
+ "Headphones 2 L",
+ "Headphones 2 R",
+ },
+
+ .port_count = {
+ [SCARLETT2_PORT_TYPE_NONE] = { 1, 0 },
+ [SCARLETT2_PORT_TYPE_ANALOGUE] = { 8, 6 },
+ [SCARLETT2_PORT_TYPE_SPDIF] = { 2, 2 },
+ [SCARLETT2_PORT_TYPE_ADAT] = { 8, 0 },
+ [SCARLETT2_PORT_TYPE_MIX] = { 10, 18 },
+ [SCARLETT2_PORT_TYPE_PCM] = { 8, 18 },
+ },
+
+ .mux_assignment = { {
+ { SCARLETT2_PORT_TYPE_PCM, 0, 18 },
+ { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 6 },
+ { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
+ { SCARLETT2_PORT_TYPE_MIX, 0, 18 },
+ { SCARLETT2_PORT_TYPE_NONE, 0, 8 },
+ { 0, 0, 0 },
+ }, {
+ { SCARLETT2_PORT_TYPE_PCM, 0, 14 },
+ { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 6 },
+ { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
+ { SCARLETT2_PORT_TYPE_MIX, 0, 18 },
+ { SCARLETT2_PORT_TYPE_NONE, 0, 8 },
+ { 0, 0, 0 },
+ }, {
+ { SCARLETT2_PORT_TYPE_PCM, 0, 10 },
+ { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 6 },
+ { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
+ { SCARLETT2_PORT_TYPE_MIX, 0, 18 },
+ { SCARLETT2_PORT_TYPE_NONE, 0, 4 },
+ { 0, 0, 0 },
+ } },
+
+ .meter_map = {
+ { 26, 18 },
+ { 0, 26 },
+ { 0, 0 },
+ }
+};
+
+static const struct scarlett2_device_info s18i20_gen2_info = {
+ .config_set = SCARLETT2_CONFIG_SET_GEN_2,
+ .line_out_hw_vol = 1,
+
+ .line_out_descrs = {
+ "Monitor L",
+ "Monitor R",
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ "Headphones 1 L",
+ "Headphones 1 R",
+ "Headphones 2 L",
+ "Headphones 2 R",
+ },
+
+ .port_count = {
+ [SCARLETT2_PORT_TYPE_NONE] = { 1, 0 },
+ [SCARLETT2_PORT_TYPE_ANALOGUE] = { 8, 10 },
+ [SCARLETT2_PORT_TYPE_SPDIF] = { 2, 2 },
+ [SCARLETT2_PORT_TYPE_ADAT] = { 8, 8 },
+ [SCARLETT2_PORT_TYPE_MIX] = { 10, 18 },
+ [SCARLETT2_PORT_TYPE_PCM] = { 20, 18 },
+ },
+
+ .mux_assignment = { {
+ { SCARLETT2_PORT_TYPE_PCM, 0, 18 },
+ { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 10 },
+ { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
+ { SCARLETT2_PORT_TYPE_ADAT, 0, 8 },
+ { SCARLETT2_PORT_TYPE_MIX, 0, 18 },
+ { SCARLETT2_PORT_TYPE_NONE, 0, 8 },
+ { 0, 0, 0 },
+ }, {
+ { SCARLETT2_PORT_TYPE_PCM, 0, 14 },
+ { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 10 },
+ { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
+ { SCARLETT2_PORT_TYPE_ADAT, 0, 4 },
+ { SCARLETT2_PORT_TYPE_MIX, 0, 18 },
+ { SCARLETT2_PORT_TYPE_NONE, 0, 8 },
+ { 0, 0, 0 },
+ }, {
+ { SCARLETT2_PORT_TYPE_PCM, 0, 10 },
+ { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 10 },
+ { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
+ { SCARLETT2_PORT_TYPE_MIX, 0, 18 },
+ { SCARLETT2_PORT_TYPE_NONE, 0, 6 },
+ { 0, 0, 0 },
+ } },
+
+ .meter_map = {
+ { 38, 18 },
+ { 0, 38 },
+ { 0, 0 },
+ }
+};
+
+static const struct scarlett2_device_info solo_gen3_info = {
+ .has_msd_mode = 1,
+ .config_set = SCARLETT2_CONFIG_SET_GEN_3A,
+ .level_input_count = 1,
+ .level_input_first = 1,
+ .air_input_count = 1,
+ .phantom_count = 1,
+ .inputs_per_phantom = 1,
+ .direct_monitor = 1,
+};
+
+static const struct scarlett2_device_info s2i2_gen3_info = {
+ .has_msd_mode = 1,
+ .config_set = SCARLETT2_CONFIG_SET_GEN_3A,
+ .level_input_count = 2,
+ .air_input_count = 2,
+ .phantom_count = 1,
+ .inputs_per_phantom = 2,
+ .direct_monitor = 2,
+};
+
+static const struct scarlett2_device_info s4i4_gen3_info = {
+ .has_msd_mode = 1,
+ .config_set = SCARLETT2_CONFIG_SET_GEN_3B,
+ .level_input_count = 2,
+ .pad_input_count = 2,
+ .air_input_count = 2,
+ .phantom_count = 1,
+ .inputs_per_phantom = 2,
+
+ .line_out_descrs = {
+ "Monitor L",
+ "Monitor R",
+ "Headphones L",
+ "Headphones R",
+ },
+
+ .port_count = {
+ [SCARLETT2_PORT_TYPE_NONE] = { 1, 0 },
+ [SCARLETT2_PORT_TYPE_ANALOGUE] = { 4, 4 },
+ [SCARLETT2_PORT_TYPE_MIX] = { 6, 8 },
+ [SCARLETT2_PORT_TYPE_PCM] = { 4, 6 },
+ },
+
+ .mux_assignment = { {
+ { SCARLETT2_PORT_TYPE_PCM, 0, 6 },
+ { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 4 },
+ { SCARLETT2_PORT_TYPE_MIX, 0, 8 },
+ { SCARLETT2_PORT_TYPE_NONE, 0, 16 },
+ { 0, 0, 0 },
+ }, {
+ { SCARLETT2_PORT_TYPE_PCM, 0, 6 },
+ { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 4 },
+ { SCARLETT2_PORT_TYPE_MIX, 0, 8 },
+ { SCARLETT2_PORT_TYPE_NONE, 0, 16 },
+ { 0, 0, 0 },
+ }, {
+ { SCARLETT2_PORT_TYPE_PCM, 0, 6 },
+ { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 4 },
+ { SCARLETT2_PORT_TYPE_MIX, 0, 8 },
+ { SCARLETT2_PORT_TYPE_NONE, 0, 16 },
+ { 0, 0, 0 },
+ } },
+
+ .meter_map = {
+ { 12, 6 },
+ { 0, 12 },
+ { 0, 0 },
+ }
+};
+
+static const struct scarlett2_device_info s8i6_gen3_info = {
+ .has_msd_mode = 1,
+ .config_set = SCARLETT2_CONFIG_SET_GEN_3B,
+ .level_input_count = 2,
+ .pad_input_count = 2,
+ .air_input_count = 2,
+ .phantom_count = 1,
+ .inputs_per_phantom = 2,
+
+ .line_out_descrs = {
+ "Headphones 1 L",
+ "Headphones 1 R",
+ "Headphones 2 L",
+ "Headphones 2 R",
+ },
+
+ .port_count = {
+ [SCARLETT2_PORT_TYPE_NONE] = { 1, 0 },
+ [SCARLETT2_PORT_TYPE_ANALOGUE] = { 6, 4 },
+ [SCARLETT2_PORT_TYPE_SPDIF] = { 2, 2 },
+ [SCARLETT2_PORT_TYPE_MIX] = { 8, 8 },
+ [SCARLETT2_PORT_TYPE_PCM] = { 6, 10 },
+ },
+
+ .mux_assignment = { {
+ { SCARLETT2_PORT_TYPE_PCM, 0, 8 },
+ { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 4 },
+ { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
+ { SCARLETT2_PORT_TYPE_PCM, 8, 2 },
+ { SCARLETT2_PORT_TYPE_MIX, 0, 8 },
+ { SCARLETT2_PORT_TYPE_NONE, 0, 18 },
+ { 0, 0, 0 },
+ }, {
+ { SCARLETT2_PORT_TYPE_PCM, 0, 8 },
+ { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 4 },
+ { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
+ { SCARLETT2_PORT_TYPE_PCM, 8, 2 },
+ { SCARLETT2_PORT_TYPE_MIX, 0, 8 },
+ { SCARLETT2_PORT_TYPE_NONE, 0, 18 },
+ { 0, 0, 0 },
+ }, {
+ { SCARLETT2_PORT_TYPE_PCM, 0, 8 },
+ { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 4 },
+ { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
+ { SCARLETT2_PORT_TYPE_PCM, 8, 2 },
+ { SCARLETT2_PORT_TYPE_MIX, 0, 8 },
+ { SCARLETT2_PORT_TYPE_NONE, 0, 18 },
+ { 0, 0, 0 },
+ } },
+
+ .meter_map = {
+ { 14, 8 },
+ { 0, 6 },
+ { 22, 2 },
+ { 6, 8 },
+ { 0, 0 },
+ }
+};
+
+static const struct scarlett2_device_info s18i8_gen3_info = {
+ .has_msd_mode = 1,
+ .config_set = SCARLETT2_CONFIG_SET_GEN_3B,
+ .line_out_hw_vol = 1,
+ .has_speaker_switching = 1,
+ .level_input_count = 2,
+ .pad_input_count = 4,
+ .air_input_count = 4,
+ .phantom_count = 2,
+ .inputs_per_phantom = 2,
+
+ .line_out_remap_enable = 1,
+ .line_out_remap = { 0, 1, 6, 7, 2, 3, 4, 5 },
+ .line_out_unmap = { 0, 1, 4, 5, 6, 7, 2, 3 },
+
+ .line_out_descrs = {
+ "Monitor L",
+ "Monitor R",
+ "Alt Monitor L",
+ "Alt Monitor R",
+ "Headphones 1 L",
+ "Headphones 1 R",
+ "Headphones 2 L",
+ "Headphones 2 R",
+ },
+
+ .port_count = {
+ [SCARLETT2_PORT_TYPE_NONE] = { 1, 0 },
+ [SCARLETT2_PORT_TYPE_ANALOGUE] = { 8, 8 },
+ [SCARLETT2_PORT_TYPE_SPDIF] = { 2, 2 },
+ [SCARLETT2_PORT_TYPE_ADAT] = { 8, 0 },
+ [SCARLETT2_PORT_TYPE_MIX] = { 10, 20 },
+ [SCARLETT2_PORT_TYPE_PCM] = { 8, 20 },
+ },
+
+ .mux_assignment = { {
+ { SCARLETT2_PORT_TYPE_PCM, 0, 10 },
+ { SCARLETT2_PORT_TYPE_PCM, 12, 8 },
+ { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 2 },
+ { SCARLETT2_PORT_TYPE_ANALOGUE, 6, 2 },
+ { SCARLETT2_PORT_TYPE_ANALOGUE, 2, 4 },
+ { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
+ { SCARLETT2_PORT_TYPE_PCM, 10, 2 },
+ { SCARLETT2_PORT_TYPE_MIX, 0, 20 },
+ { SCARLETT2_PORT_TYPE_NONE, 0, 10 },
+ { 0, 0, 0 },
+ }, {
+ { SCARLETT2_PORT_TYPE_PCM, 0, 10 },
+ { SCARLETT2_PORT_TYPE_PCM, 12, 4 },
+ { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 2 },
+ { SCARLETT2_PORT_TYPE_ANALOGUE, 6, 2 },
+ { SCARLETT2_PORT_TYPE_ANALOGUE, 2, 4 },
+ { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
+ { SCARLETT2_PORT_TYPE_PCM, 10, 2 },
+ { SCARLETT2_PORT_TYPE_MIX, 0, 20 },
+ { SCARLETT2_PORT_TYPE_NONE, 0, 10 },
+ { 0, 0, 0 },
+ }, {
+ { SCARLETT2_PORT_TYPE_PCM, 0, 10 },
+ { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 2 },
+ { SCARLETT2_PORT_TYPE_ANALOGUE, 6, 2 },
+ { SCARLETT2_PORT_TYPE_ANALOGUE, 2, 4 },
+ { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
+ { SCARLETT2_PORT_TYPE_MIX, 0, 20 },
+ { SCARLETT2_PORT_TYPE_NONE, 0, 10 },
+ { 0, 0, 0 },
+ } },
+
+ .meter_map = {
+ { 30, 10 },
+ { 42, 8 },
+ { 0, 2 },
+ { 6, 2 },
+ { 2, 4 },
+ { 8, 2 },
+ { 40, 2 },
+ { 10, 20 },
+ { 0, 0 }
+ }
+};
+
+static const struct scarlett2_device_info s18i20_gen3_info = {
+ .has_msd_mode = 1,
+ .config_set = SCARLETT2_CONFIG_SET_GEN_3B,
+ .line_out_hw_vol = 1,
+ .has_speaker_switching = 1,
+ .has_talkback = 1,
+ .level_input_count = 2,
+ .pad_input_count = 8,
+ .air_input_count = 8,
+ .phantom_count = 2,
+ .inputs_per_phantom = 4,
+
+ .line_out_descrs = {
+ "Monitor 1 L",
+ "Monitor 1 R",
+ "Monitor 2 L",
+ "Monitor 2 R",
+ NULL,
+ NULL,
+ "Headphones 1 L",
+ "Headphones 1 R",
+ "Headphones 2 L",
+ "Headphones 2 R",
+ },
+
+ .port_count = {
+ [SCARLETT2_PORT_TYPE_NONE] = { 1, 0 },
+ [SCARLETT2_PORT_TYPE_ANALOGUE] = { 9, 10 },
+ [SCARLETT2_PORT_TYPE_SPDIF] = { 2, 2 },
+ [SCARLETT2_PORT_TYPE_ADAT] = { 8, 8 },
+ [SCARLETT2_PORT_TYPE_MIX] = { 12, 25 },
+ [SCARLETT2_PORT_TYPE_PCM] = { 20, 20 },
+ },
+
+ .mux_assignment = { {
+ { SCARLETT2_PORT_TYPE_PCM, 0, 8 },
+ { SCARLETT2_PORT_TYPE_PCM, 10, 10 },
+ { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 10 },
+ { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
+ { SCARLETT2_PORT_TYPE_ADAT, 0, 8 },
+ { SCARLETT2_PORT_TYPE_PCM, 8, 2 },
+ { SCARLETT2_PORT_TYPE_MIX, 0, 25 },
+ { SCARLETT2_PORT_TYPE_NONE, 0, 12 },
+ { 0, 0, 0 },
+ }, {
+ { SCARLETT2_PORT_TYPE_PCM, 0, 8 },
+ { SCARLETT2_PORT_TYPE_PCM, 10, 8 },
+ { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 10 },
+ { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
+ { SCARLETT2_PORT_TYPE_ADAT, 0, 8 },
+ { SCARLETT2_PORT_TYPE_PCM, 8, 2 },
+ { SCARLETT2_PORT_TYPE_MIX, 0, 25 },
+ { SCARLETT2_PORT_TYPE_NONE, 0, 10 },
+ { 0, 0, 0 },
+ }, {
+ { SCARLETT2_PORT_TYPE_PCM, 0, 10 },
+ { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 10 },
+ { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
+ { SCARLETT2_PORT_TYPE_NONE, 0, 24 },
+ { 0, 0, 0 },
+ } },
+
+ .meter_map = {
+ { 45, 8 },
+ { 55, 10 },
+ { 0, 20 },
+ { 53, 2 },
+ { 20, 25 },
+ { 0, 0 },
+ }
+};
+
+static const struct scarlett2_device_info clarett_2pre_info = {
+ .config_set = SCARLETT2_CONFIG_SET_CLARETT,
+ .line_out_hw_vol = 1,
+ .level_input_count = 2,
+ .air_input_count = 2,
+
+ .line_out_descrs = {
+ "Monitor L",
+ "Monitor R",
+ "Headphones L",
+ "Headphones R",
+ },
+
+ .port_count = {
+ [SCARLETT2_PORT_TYPE_NONE] = { 1, 0 },
+ [SCARLETT2_PORT_TYPE_ANALOGUE] = { 2, 4 },
+ [SCARLETT2_PORT_TYPE_SPDIF] = { 2, 0 },
+ [SCARLETT2_PORT_TYPE_ADAT] = { 8, 0 },
+ [SCARLETT2_PORT_TYPE_MIX] = { 10, 18 },
+ [SCARLETT2_PORT_TYPE_PCM] = { 4, 12 },
+ },
+
+ .mux_assignment = { {
+ { SCARLETT2_PORT_TYPE_PCM, 0, 12 },
+ { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 4 },
+ { SCARLETT2_PORT_TYPE_MIX, 0, 18 },
+ { SCARLETT2_PORT_TYPE_NONE, 0, 8 },
+ { 0, 0, 0 },
+ }, {
+ { SCARLETT2_PORT_TYPE_PCM, 0, 8 },
+ { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 4 },
+ { SCARLETT2_PORT_TYPE_MIX, 0, 18 },
+ { SCARLETT2_PORT_TYPE_NONE, 0, 8 },
+ { 0, 0, 0 },
+ }, {
+ { SCARLETT2_PORT_TYPE_PCM, 0, 2 },
+ { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 4 },
+ { SCARLETT2_PORT_TYPE_NONE, 0, 26 },
+ { 0, 0, 0 },
+ } },
+
+ .meter_map = {
+ { 22, 12 },
+ { 0, 22 },
+ { 0, 0 }
+ }
+};
+
+static const struct scarlett2_device_info clarett_4pre_info = {
+ .config_set = SCARLETT2_CONFIG_SET_CLARETT,
+ .line_out_hw_vol = 1,
+ .level_input_count = 2,
+ .air_input_count = 4,
+
+ .line_out_descrs = {
+ "Monitor L",
+ "Monitor R",
+ "Headphones 1 L",
+ "Headphones 1 R",
+ "Headphones 2 L",
+ "Headphones 2 R",
+ },
+
+ .port_count = {
+ [SCARLETT2_PORT_TYPE_NONE] = { 1, 0 },
+ [SCARLETT2_PORT_TYPE_ANALOGUE] = { 8, 6 },
+ [SCARLETT2_PORT_TYPE_SPDIF] = { 2, 2 },
+ [SCARLETT2_PORT_TYPE_ADAT] = { 8, 0 },
+ [SCARLETT2_PORT_TYPE_MIX] = { 10, 18 },
+ [SCARLETT2_PORT_TYPE_PCM] = { 8, 18 },
+ },
+
+ .mux_assignment = { {
+ { SCARLETT2_PORT_TYPE_PCM, 0, 18 },
+ { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 6 },
+ { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
+ { SCARLETT2_PORT_TYPE_MIX, 0, 18 },
+ { SCARLETT2_PORT_TYPE_NONE, 0, 8 },
+ { 0, 0, 0 },
+ }, {
+ { SCARLETT2_PORT_TYPE_PCM, 0, 14 },
+ { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 6 },
+ { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
+ { SCARLETT2_PORT_TYPE_MIX, 0, 18 },
+ { SCARLETT2_PORT_TYPE_NONE, 0, 8 },
+ { 0, 0, 0 },
+ }, {
+ { SCARLETT2_PORT_TYPE_PCM, 0, 12 },
+ { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 6 },
+ { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
+ { SCARLETT2_PORT_TYPE_NONE, 0, 24 },
+ { 0, 0, 0 },
+ } },
+
+ .meter_map = {
+ { 26, 18 },
+ { 0, 26 },
+ { 0, 0 }
+ }
+};
+
+static const struct scarlett2_device_info clarett_8pre_info = {
+ .config_set = SCARLETT2_CONFIG_SET_CLARETT,
+ .line_out_hw_vol = 1,
+ .level_input_count = 2,
+ .air_input_count = 8,
+
+ .line_out_descrs = {
+ "Monitor L",
+ "Monitor R",
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ "Headphones 1 L",
+ "Headphones 1 R",
+ "Headphones 2 L",
+ "Headphones 2 R",
+ },
+
+ .port_count = {
+ [SCARLETT2_PORT_TYPE_NONE] = { 1, 0 },
+ [SCARLETT2_PORT_TYPE_ANALOGUE] = { 8, 10 },
+ [SCARLETT2_PORT_TYPE_SPDIF] = { 2, 2 },
+ [SCARLETT2_PORT_TYPE_ADAT] = { 8, 8 },
+ [SCARLETT2_PORT_TYPE_MIX] = { 10, 18 },
+ [SCARLETT2_PORT_TYPE_PCM] = { 20, 18 },
+ },
+
+ .mux_assignment = { {
+ { SCARLETT2_PORT_TYPE_PCM, 0, 18 },
+ { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 10 },
+ { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
+ { SCARLETT2_PORT_TYPE_ADAT, 0, 8 },
+ { SCARLETT2_PORT_TYPE_MIX, 0, 18 },
+ { SCARLETT2_PORT_TYPE_NONE, 0, 8 },
+ { 0, 0, 0 },
+ }, {
+ { SCARLETT2_PORT_TYPE_PCM, 0, 14 },
+ { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 10 },
+ { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
+ { SCARLETT2_PORT_TYPE_ADAT, 0, 4 },
+ { SCARLETT2_PORT_TYPE_MIX, 0, 18 },
+ { SCARLETT2_PORT_TYPE_NONE, 0, 8 },
+ { 0, 0, 0 },
+ }, {
+ { SCARLETT2_PORT_TYPE_PCM, 0, 12 },
+ { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 10 },
+ { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 },
+ { SCARLETT2_PORT_TYPE_NONE, 0, 22 },
+ { 0, 0, 0 },
+ } },
+
+ .meter_map = {
+ { 38, 18 },
+ { 0, 38 },
+ { 0, 0 }
+ }
+};
+
+struct scarlett2_device_entry {
+ const u32 usb_id; /* USB device identifier */
+ const struct scarlett2_device_info *info;
+ const char *series_name;
+};
+
+static const struct scarlett2_device_entry scarlett2_devices[] = {
+ /* Supported Gen 2 devices */
+ { USB_ID(0x1235, 0x8203), &s6i6_gen2_info, "Scarlett Gen 2" },
+ { USB_ID(0x1235, 0x8204), &s18i8_gen2_info, "Scarlett Gen 2" },
+ { USB_ID(0x1235, 0x8201), &s18i20_gen2_info, "Scarlett Gen 2" },
+
+ /* Supported Gen 3 devices */
+ { USB_ID(0x1235, 0x8211), &solo_gen3_info, "Scarlett Gen 3" },
+ { USB_ID(0x1235, 0x8210), &s2i2_gen3_info, "Scarlett Gen 3" },
+ { USB_ID(0x1235, 0x8212), &s4i4_gen3_info, "Scarlett Gen 3" },
+ { USB_ID(0x1235, 0x8213), &s8i6_gen3_info, "Scarlett Gen 3" },
+ { USB_ID(0x1235, 0x8214), &s18i8_gen3_info, "Scarlett Gen 3" },
+ { USB_ID(0x1235, 0x8215), &s18i20_gen3_info, "Scarlett Gen 3" },
+
+ /* Supported Clarett USB/Clarett+ devices */
+ { USB_ID(0x1235, 0x8206), &clarett_2pre_info, "Clarett USB" },
+ { USB_ID(0x1235, 0x8207), &clarett_4pre_info, "Clarett USB" },
+ { USB_ID(0x1235, 0x8208), &clarett_8pre_info, "Clarett USB" },
+ { USB_ID(0x1235, 0x820a), &clarett_2pre_info, "Clarett+" },
+ { USB_ID(0x1235, 0x820b), &clarett_4pre_info, "Clarett+" },
+ { USB_ID(0x1235, 0x820c), &clarett_8pre_info, "Clarett+" },
+
+ /* End of list */
+ { 0, NULL },
+};
+
+/* get the starting port index number for a given port type/direction */
+static int scarlett2_get_port_start_num(
+ const int port_count[][SCARLETT2_PORT_DIRNS],
+ int direction, int port_type)
+{
+ int i, num = 0;
+
+ for (i = 0; i < port_type; i++)
+ num += port_count[i][direction];
+
+ return num;
+}
+
+/*** USB Interactions ***/
+
+/* Notifications from the interface */
+#define SCARLETT2_USB_NOTIFY_SYNC 0x00000008
+#define SCARLETT2_USB_NOTIFY_DIM_MUTE 0x00200000
+#define SCARLETT2_USB_NOTIFY_MONITOR 0x00400000
+#define SCARLETT2_USB_NOTIFY_INPUT_OTHER 0x00800000
+#define SCARLETT2_USB_NOTIFY_MONITOR_OTHER 0x01000000
+
+/* Commands for sending/receiving requests/responses */
+#define SCARLETT2_USB_CMD_INIT 0
+#define SCARLETT2_USB_CMD_REQ 2
+#define SCARLETT2_USB_CMD_RESP 3
+
+#define SCARLETT2_USB_INIT_1 0x00000000
+#define SCARLETT2_USB_INIT_2 0x00000002
+#define SCARLETT2_USB_GET_METER 0x00001001
+#define SCARLETT2_USB_GET_MIX 0x00002001
+#define SCARLETT2_USB_SET_MIX 0x00002002
+#define SCARLETT2_USB_GET_MUX 0x00003001
+#define SCARLETT2_USB_SET_MUX 0x00003002
+#define SCARLETT2_USB_GET_SYNC 0x00006004
+#define SCARLETT2_USB_GET_DATA 0x00800000
+#define SCARLETT2_USB_SET_DATA 0x00800001
+#define SCARLETT2_USB_DATA_CMD 0x00800002
+
+#define SCARLETT2_USB_CONFIG_SAVE 6
+
+#define SCARLETT2_USB_VOLUME_STATUS_OFFSET 0x31
+#define SCARLETT2_USB_METER_LEVELS_GET_MAGIC 1
+
+/* volume status is read together (matches scarlett2_config_items[1]) */
+struct scarlett2_usb_volume_status {
+ /* dim/mute buttons */
+ u8 dim_mute[SCARLETT2_DIM_MUTE_COUNT];
+
+ u8 pad1;
+
+ /* software volume setting */
+ s16 sw_vol[SCARLETT2_ANALOGUE_MAX];
+
+ /* actual volume of output inc. dim (-18dB) */
+ s16 hw_vol[SCARLETT2_ANALOGUE_MAX];
+
+ /* internal mute buttons */
+ u8 mute_switch[SCARLETT2_ANALOGUE_MAX];
+
+ /* sw (0) or hw (1) controlled */
+ u8 sw_hw_switch[SCARLETT2_ANALOGUE_MAX];
+
+ u8 pad3[6];
+
+ /* front panel volume knob */
+ s16 master_vol;
+} __packed;
+
+/* Configuration parameters that can be read and written */
+enum {
+ SCARLETT2_CONFIG_DIM_MUTE = 0,
+ SCARLETT2_CONFIG_LINE_OUT_VOLUME = 1,
+ SCARLETT2_CONFIG_MUTE_SWITCH = 2,
+ SCARLETT2_CONFIG_SW_HW_SWITCH = 3,
+ SCARLETT2_CONFIG_LEVEL_SWITCH = 4,
+ SCARLETT2_CONFIG_PAD_SWITCH = 5,
+ SCARLETT2_CONFIG_MSD_SWITCH = 6,
+ SCARLETT2_CONFIG_AIR_SWITCH = 7,
+ SCARLETT2_CONFIG_STANDALONE_SWITCH = 8,
+ SCARLETT2_CONFIG_PHANTOM_SWITCH = 9,
+ SCARLETT2_CONFIG_PHANTOM_PERSISTENCE = 10,
+ SCARLETT2_CONFIG_DIRECT_MONITOR = 11,
+ SCARLETT2_CONFIG_MONITOR_OTHER_SWITCH = 12,
+ SCARLETT2_CONFIG_MONITOR_OTHER_ENABLE = 13,
+ SCARLETT2_CONFIG_TALKBACK_MAP = 14,
+ SCARLETT2_CONFIG_COUNT = 15
+};
+
+/* Location, size, and activation command number for the configuration
+ * parameters. Size is in bits and may be 1, 8, or 16.
+ */
+struct scarlett2_config {
+ u8 offset;
+ u8 size;
+ u8 activate;
+};
+
+static const struct scarlett2_config
+ scarlett2_config_items[SCARLETT2_CONFIG_SET_COUNT]
+ [SCARLETT2_CONFIG_COUNT] =
+
+/* Gen 2 devices: 6i6, 18i8, 18i20 */
+{ {
+ [SCARLETT2_CONFIG_DIM_MUTE] = {
+ .offset = 0x31, .size = 8, .activate = 2 },
+
+ [SCARLETT2_CONFIG_LINE_OUT_VOLUME] = {
+ .offset = 0x34, .size = 16, .activate = 1 },
+
+ [SCARLETT2_CONFIG_MUTE_SWITCH] = {
+ .offset = 0x5c, .size = 8, .activate = 1 },
+
+ [SCARLETT2_CONFIG_SW_HW_SWITCH] = {
+ .offset = 0x66, .size = 8, .activate = 3 },
+
+ [SCARLETT2_CONFIG_LEVEL_SWITCH] = {
+ .offset = 0x7c, .size = 8, .activate = 7 },
+
+ [SCARLETT2_CONFIG_PAD_SWITCH] = {
+ .offset = 0x84, .size = 8, .activate = 8 },
+
+ [SCARLETT2_CONFIG_STANDALONE_SWITCH] = {
+ .offset = 0x8d, .size = 8, .activate = 6 },
+
+/* Gen 3 devices without a mixer (Solo and 2i2) */
+}, {
+ [SCARLETT2_CONFIG_MSD_SWITCH] = {
+ .offset = 0x04, .size = 8, .activate = 6 },
+
+ [SCARLETT2_CONFIG_PHANTOM_PERSISTENCE] = {
+ .offset = 0x05, .size = 8, .activate = 6 },
+
+ [SCARLETT2_CONFIG_PHANTOM_SWITCH] = {
+ .offset = 0x06, .size = 8, .activate = 3 },
+
+ [SCARLETT2_CONFIG_DIRECT_MONITOR] = {
+ .offset = 0x07, .size = 8, .activate = 4 },
+
+ [SCARLETT2_CONFIG_LEVEL_SWITCH] = {
+ .offset = 0x08, .size = 1, .activate = 7 },
+
+ [SCARLETT2_CONFIG_AIR_SWITCH] = {
+ .offset = 0x09, .size = 1, .activate = 8 },
+
+/* Gen 3 devices: 4i4, 8i6, 18i8, 18i20 */
+}, {
+ [SCARLETT2_CONFIG_DIM_MUTE] = {
+ .offset = 0x31, .size = 8, .activate = 2 },
+
+ [SCARLETT2_CONFIG_LINE_OUT_VOLUME] = {
+ .offset = 0x34, .size = 16, .activate = 1 },
+
+ [SCARLETT2_CONFIG_MUTE_SWITCH] = {
+ .offset = 0x5c, .size = 8, .activate = 1 },
+
+ [SCARLETT2_CONFIG_SW_HW_SWITCH] = {
+ .offset = 0x66, .size = 8, .activate = 3 },
+
+ [SCARLETT2_CONFIG_LEVEL_SWITCH] = {
+ .offset = 0x7c, .size = 8, .activate = 7 },
+
+ [SCARLETT2_CONFIG_PAD_SWITCH] = {
+ .offset = 0x84, .size = 8, .activate = 8 },
+
+ [SCARLETT2_CONFIG_AIR_SWITCH] = {
+ .offset = 0x8c, .size = 8, .activate = 8 },
+
+ [SCARLETT2_CONFIG_STANDALONE_SWITCH] = {
+ .offset = 0x95, .size = 8, .activate = 6 },
+
+ [SCARLETT2_CONFIG_PHANTOM_SWITCH] = {
+ .offset = 0x9c, .size = 1, .activate = 8 },
+
+ [SCARLETT2_CONFIG_MSD_SWITCH] = {
+ .offset = 0x9d, .size = 8, .activate = 6 },
+
+ [SCARLETT2_CONFIG_PHANTOM_PERSISTENCE] = {
+ .offset = 0x9e, .size = 8, .activate = 6 },
+
+ [SCARLETT2_CONFIG_MONITOR_OTHER_SWITCH] = {
+ .offset = 0x9f, .size = 1, .activate = 10 },
+
+ [SCARLETT2_CONFIG_MONITOR_OTHER_ENABLE] = {
+ .offset = 0xa0, .size = 1, .activate = 10 },
+
+ [SCARLETT2_CONFIG_TALKBACK_MAP] = {
+ .offset = 0xb0, .size = 16, .activate = 10 },
+
+/* Clarett USB and Clarett+ devices: 2Pre, 4Pre, 8Pre */
+}, {
+ [SCARLETT2_CONFIG_DIM_MUTE] = {
+ .offset = 0x31, .size = 8, .activate = 2 },
+
+ [SCARLETT2_CONFIG_LINE_OUT_VOLUME] = {
+ .offset = 0x34, .size = 16, .activate = 1 },
+
+ [SCARLETT2_CONFIG_MUTE_SWITCH] = {
+ .offset = 0x5c, .size = 8, .activate = 1 },
+
+ [SCARLETT2_CONFIG_SW_HW_SWITCH] = {
+ .offset = 0x66, .size = 8, .activate = 3 },
+
+ [SCARLETT2_CONFIG_LEVEL_SWITCH] = {
+ .offset = 0x7c, .size = 8, .activate = 7 },
+
+ [SCARLETT2_CONFIG_AIR_SWITCH] = {
+ .offset = 0x95, .size = 8, .activate = 8 },
+
+ [SCARLETT2_CONFIG_STANDALONE_SWITCH] = {
+ .offset = 0x8d, .size = 8, .activate = 6 },
+} };
+
+/* proprietary request/response format */
+struct scarlett2_usb_packet {
+ __le32 cmd;
+ __le16 size;
+ __le16 seq;
+ __le32 error;
+ __le32 pad;
+ u8 data[];
+};
+
+static void scarlett2_fill_request_header(struct scarlett2_data *private,
+ struct scarlett2_usb_packet *req,
+ u32 cmd, u16 req_size)
+{
+ /* sequence must go up by 1 for each request */
+ u16 seq = private->scarlett2_seq++;
+
+ req->cmd = cpu_to_le32(cmd);
+ req->size = cpu_to_le16(req_size);
+ req->seq = cpu_to_le16(seq);
+ req->error = 0;
+ req->pad = 0;
+}
+
+static int scarlett2_usb_tx(struct usb_device *dev, int interface,
+ void *buf, u16 size)
+{
+ return snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
+ SCARLETT2_USB_CMD_REQ,
+ USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT,
+ 0, interface, buf, size);
+}
+
+static int scarlett2_usb_rx(struct usb_device *dev, int interface,
+ u32 usb_req, void *buf, u16 size)
+{
+ return snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0),
+ usb_req,
+ USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN,
+ 0, interface, buf, size);
+}
+
+/* Send a proprietary format request to the Scarlett interface */
+static int scarlett2_usb(
+ struct usb_mixer_interface *mixer, u32 cmd,
+ void *req_data, u16 req_size, void *resp_data, u16 resp_size)
+{
+ struct scarlett2_data *private = mixer->private_data;
+ struct usb_device *dev = mixer->chip->dev;
+ struct scarlett2_usb_packet *req, *resp = NULL;
+ size_t req_buf_size = struct_size(req, data, req_size);
+ size_t resp_buf_size = struct_size(resp, data, resp_size);
+ int err;
+
+ req = kmalloc(req_buf_size, GFP_KERNEL);
+ if (!req) {
+ err = -ENOMEM;
+ goto error;
+ }
+
+ resp = kmalloc(resp_buf_size, GFP_KERNEL);
+ if (!resp) {
+ err = -ENOMEM;
+ goto error;
+ }
+
+ mutex_lock(&private->usb_mutex);
+
+ /* build request message and send it */
+
+ scarlett2_fill_request_header(private, req, cmd, req_size);
+
+ if (req_size)
+ memcpy(req->data, req_data, req_size);
+
+ err = scarlett2_usb_tx(dev, private->bInterfaceNumber,
+ req, req_buf_size);
+
+ if (err != req_buf_size) {
+ usb_audio_err(
+ mixer->chip,
+ "%s USB request result cmd %x was %d\n",
+ private->series_name, cmd, err);
+ err = -EINVAL;
+ goto unlock;
+ }
+
+ /* send a second message to get the response */
+
+ err = scarlett2_usb_rx(dev, private->bInterfaceNumber,
+ SCARLETT2_USB_CMD_RESP,
+ resp, resp_buf_size);
+
+ /* validate the response */
+
+ if (err != resp_buf_size) {
+ usb_audio_err(
+ mixer->chip,
+ "%s USB response result cmd %x was %d expected %zu\n",
+ private->series_name, cmd, err, resp_buf_size);
+ err = -EINVAL;
+ goto unlock;
+ }
+
+ /* cmd/seq/size should match except when initialising
+ * seq sent = 1, response = 0
+ */
+ if (resp->cmd != req->cmd ||
+ (resp->seq != req->seq &&
+ (le16_to_cpu(req->seq) != 1 || resp->seq != 0)) ||
+ resp_size != le16_to_cpu(resp->size) ||
+ resp->error ||
+ resp->pad) {
+ usb_audio_err(
+ mixer->chip,
+ "%s USB invalid response; "
+ "cmd tx/rx %d/%d seq %d/%d size %d/%d "
+ "error %d pad %d\n",
+ private->series_name,
+ le32_to_cpu(req->cmd), le32_to_cpu(resp->cmd),
+ le16_to_cpu(req->seq), le16_to_cpu(resp->seq),
+ resp_size, le16_to_cpu(resp->size),
+ le32_to_cpu(resp->error),
+ le32_to_cpu(resp->pad));
+ err = -EINVAL;
+ goto unlock;
+ }
+
+ if (resp_data && resp_size > 0)
+ memcpy(resp_data, resp->data, resp_size);
+
+unlock:
+ mutex_unlock(&private->usb_mutex);
+error:
+ kfree(req);
+ kfree(resp);
+ return err;
+}
+
+/* Send a USB message to get data; result placed in *buf */
+static int scarlett2_usb_get(
+ struct usb_mixer_interface *mixer,
+ int offset, void *buf, int size)
+{
+ struct {
+ __le32 offset;
+ __le32 size;
+ } __packed req;
+
+ req.offset = cpu_to_le32(offset);
+ req.size = cpu_to_le32(size);
+ return scarlett2_usb(mixer, SCARLETT2_USB_GET_DATA,
+ &req, sizeof(req), buf, size);
+}
+
+/* Send a USB message to get configuration parameters; result placed in *buf */
+static int scarlett2_usb_get_config(
+ struct usb_mixer_interface *mixer,
+ int config_item_num, int count, void *buf)
+{
+ struct scarlett2_data *private = mixer->private_data;
+ const struct scarlett2_device_info *info = private->info;
+ const struct scarlett2_config *config_item =
+ &scarlett2_config_items[info->config_set][config_item_num];
+ int size, err, i;
+ u8 *buf_8;
+ u8 value;
+
+ /* For byte-sized parameters, retrieve directly into buf */
+ if (config_item->size >= 8) {
+ size = config_item->size / 8 * count;
+ err = scarlett2_usb_get(mixer, config_item->offset, buf, size);
+ if (err < 0)
+ return err;
+ if (size == 2) {
+ u16 *buf_16 = buf;
+
+ for (i = 0; i < count; i++, buf_16++)
+ *buf_16 = le16_to_cpu(*(__le16 *)buf_16);
+ }
+ return 0;
+ }
+
+ /* For bit-sized parameters, retrieve into value */
+ err = scarlett2_usb_get(mixer, config_item->offset, &value, 1);
+ if (err < 0)
+ return err;
+
+ /* then unpack from value into buf[] */
+ buf_8 = buf;
+ for (i = 0; i < 8 && i < count; i++, value >>= 1)
+ *buf_8++ = value & 1;
+
+ return 0;
+}
+
+/* Send SCARLETT2_USB_DATA_CMD SCARLETT2_USB_CONFIG_SAVE */
+static void scarlett2_config_save(struct usb_mixer_interface *mixer)
+{
+ __le32 req = cpu_to_le32(SCARLETT2_USB_CONFIG_SAVE);
+
+ scarlett2_usb(mixer, SCARLETT2_USB_DATA_CMD,
+ &req, sizeof(u32),
+ NULL, 0);
+}
+
+/* Delayed work to save config */
+static void scarlett2_config_save_work(struct work_struct *work)
+{
+ struct scarlett2_data *private =
+ container_of(work, struct scarlett2_data, work.work);
+
+ scarlett2_config_save(private->mixer);
+}
+
+/* Send a USB message to set a SCARLETT2_CONFIG_* parameter */
+static int scarlett2_usb_set_config(
+ struct usb_mixer_interface *mixer,
+ int config_item_num, int index, int value)
+{
+ struct scarlett2_data *private = mixer->private_data;
+ const struct scarlett2_device_info *info = private->info;
+ const struct scarlett2_config *config_item =
+ &scarlett2_config_items[info->config_set][config_item_num];
+ struct {
+ __le32 offset;
+ __le32 bytes;
+ __le32 value;
+ } __packed req;
+ __le32 req2;
+ int offset, size;
+ int err;
+
+ /* Cancel any pending NVRAM save */
+ cancel_delayed_work_sync(&private->work);
+
+ /* Convert config_item->size in bits to size in bytes and
+ * calculate offset
+ */
+ if (config_item->size >= 8) {
+ size = config_item->size / 8;
+ offset = config_item->offset + index * size;
+
+ /* If updating a bit, retrieve the old value, set/clear the
+ * bit as needed, and update value
+ */
+ } else {
+ u8 tmp;
+
+ size = 1;
+ offset = config_item->offset;
+
+ scarlett2_usb_get(mixer, offset, &tmp, 1);
+ if (value)
+ tmp |= (1 << index);
+ else
+ tmp &= ~(1 << index);
+
+ value = tmp;
+ }
+
+ /* Send the configuration parameter data */
+ req.offset = cpu_to_le32(offset);
+ req.bytes = cpu_to_le32(size);
+ req.value = cpu_to_le32(value);
+ err = scarlett2_usb(mixer, SCARLETT2_USB_SET_DATA,
+ &req, sizeof(u32) * 2 + size,
+ NULL, 0);
+ if (err < 0)
+ return err;
+
+ /* Activate the change */
+ req2 = cpu_to_le32(config_item->activate);
+ err = scarlett2_usb(mixer, SCARLETT2_USB_DATA_CMD,
+ &req2, sizeof(req2), NULL, 0);
+ if (err < 0)
+ return err;
+
+ /* Schedule the change to be written to NVRAM */
+ if (config_item->activate != SCARLETT2_USB_CONFIG_SAVE)
+ schedule_delayed_work(&private->work, msecs_to_jiffies(2000));
+
+ return 0;
+}
+
+/* Send a USB message to get sync status; result placed in *sync */
+static int scarlett2_usb_get_sync_status(
+ struct usb_mixer_interface *mixer,
+ u8 *sync)
+{
+ __le32 data;
+ int err;
+
+ err = scarlett2_usb(mixer, SCARLETT2_USB_GET_SYNC,
+ NULL, 0, &data, sizeof(data));
+ if (err < 0)
+ return err;
+
+ *sync = !!data;
+ return 0;
+}
+
+/* Send a USB message to get volume status; result placed in *buf */
+static int scarlett2_usb_get_volume_status(
+ struct usb_mixer_interface *mixer,
+ struct scarlett2_usb_volume_status *buf)
+{
+ return scarlett2_usb_get(mixer, SCARLETT2_USB_VOLUME_STATUS_OFFSET,
+ buf, sizeof(*buf));
+}
+
+/* Send a USB message to get the volumes for all inputs of one mix
+ * and put the values into private->mix[]
+ */
+static int scarlett2_usb_get_mix(struct usb_mixer_interface *mixer,
+ int mix_num)
+{
+ struct scarlett2_data *private = mixer->private_data;
+ const struct scarlett2_device_info *info = private->info;
+
+ int num_mixer_in =
+ info->port_count[SCARLETT2_PORT_TYPE_MIX][SCARLETT2_PORT_OUT];
+ int err, i, j, k;
+
+ struct {
+ __le16 mix_num;
+ __le16 count;
+ } __packed req;
+
+ __le16 data[SCARLETT2_INPUT_MIX_MAX];
+
+ req.mix_num = cpu_to_le16(mix_num);
+ req.count = cpu_to_le16(num_mixer_in);
+
+ err = scarlett2_usb(mixer, SCARLETT2_USB_GET_MIX,
+ &req, sizeof(req),
+ data, num_mixer_in * sizeof(u16));
+ if (err < 0)
+ return err;
+
+ for (i = 0, j = mix_num * num_mixer_in; i < num_mixer_in; i++, j++) {
+ u16 mixer_value = le16_to_cpu(data[i]);
+
+ for (k = 0; k < SCARLETT2_MIXER_VALUE_COUNT; k++)
+ if (scarlett2_mixer_values[k] >= mixer_value)
+ break;
+ if (k == SCARLETT2_MIXER_VALUE_COUNT)
+ k = SCARLETT2_MIXER_MAX_VALUE;
+ private->mix[j] = k;
+ }
+
+ return 0;
+}
+
+/* Send a USB message to set the volumes for all inputs of one mix
+ * (values obtained from private->mix[])
+ */
+static int scarlett2_usb_set_mix(struct usb_mixer_interface *mixer,
+ int mix_num)
+{
+ struct scarlett2_data *private = mixer->private_data;
+ const struct scarlett2_device_info *info = private->info;
+
+ struct {
+ __le16 mix_num;
+ __le16 data[SCARLETT2_INPUT_MIX_MAX];
+ } __packed req;
+
+ int i, j;
+ int num_mixer_in =
+ info->port_count[SCARLETT2_PORT_TYPE_MIX][SCARLETT2_PORT_OUT];
+
+ req.mix_num = cpu_to_le16(mix_num);
+
+ for (i = 0, j = mix_num * num_mixer_in; i < num_mixer_in; i++, j++)
+ req.data[i] = cpu_to_le16(
+ scarlett2_mixer_values[private->mix[j]]
+ );
+
+ return scarlett2_usb(mixer, SCARLETT2_USB_SET_MIX,
+ &req, (num_mixer_in + 1) * sizeof(u16),
+ NULL, 0);
+}
+
+/* Convert a port number index (per info->port_count) to a hardware ID */
+static u32 scarlett2_mux_src_num_to_id(
+ const int port_count[][SCARLETT2_PORT_DIRNS], int num)
+{
+ int port_type;
+
+ for (port_type = 0;
+ port_type < SCARLETT2_PORT_TYPE_COUNT;
+ port_type++) {
+ if (num < port_count[port_type][SCARLETT2_PORT_IN])
+ return scarlett2_ports[port_type].id | num;
+ num -= port_count[port_type][SCARLETT2_PORT_IN];
+ }
+
+ /* Oops */
+ return 0;
+}
+
+/* Convert a hardware ID to a port number index */
+static u32 scarlett2_mux_id_to_num(
+ const int port_count[][SCARLETT2_PORT_DIRNS], int direction, u32 id)
+{
+ int port_type;
+ int port_num = 0;
+
+ for (port_type = 0;
+ port_type < SCARLETT2_PORT_TYPE_COUNT;
+ port_type++) {
+ int base = scarlett2_ports[port_type].id;
+ int count = port_count[port_type][direction];
+
+ if (id >= base && id < base + count)
+ return port_num + id - base;
+ port_num += count;
+ }
+
+ /* Oops */
+ return -1;
+}
+
+/* Convert one mux entry from the interface and load into private->mux[] */
+static void scarlett2_usb_populate_mux(struct scarlett2_data *private,
+ u32 mux_entry)
+{
+ const struct scarlett2_device_info *info = private->info;
+ const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count;
+
+ int dst_idx, src_idx;
+
+ dst_idx = scarlett2_mux_id_to_num(port_count, SCARLETT2_PORT_OUT,
+ mux_entry & 0xFFF);
+ if (dst_idx < 0)
+ return;
+
+ if (dst_idx >= private->num_mux_dsts) {
+ usb_audio_err(private->mixer->chip,
+ "BUG: scarlett2_mux_id_to_num(%06x, OUT): %d >= %d",
+ mux_entry, dst_idx, private->num_mux_dsts);
+ return;
+ }
+
+ src_idx = scarlett2_mux_id_to_num(port_count, SCARLETT2_PORT_IN,
+ mux_entry >> 12);
+ if (src_idx < 0)
+ return;
+
+ if (src_idx >= private->num_mux_srcs) {
+ usb_audio_err(private->mixer->chip,
+ "BUG: scarlett2_mux_id_to_num(%06x, IN): %d >= %d",
+ mux_entry, src_idx, private->num_mux_srcs);
+ return;
+ }
+
+ private->mux[dst_idx] = src_idx;
+}
+
+/* Update the meter level map
+ *
+ * The meter level data from the interface (SCARLETT2_USB_GET_METER
+ * request) is returned in mux_assignment order, but to avoid exposing
+ * that to userspace, scarlett2_meter_ctl_get() rearranges the data
+ * into scarlett2_ports order using the meter_level_map[] array which
+ * is set up by this function.
+ *
+ * In addition, the meter level data values returned from the
+ * interface are invalid for destinations where:
+ *
+ * - the source is "Off"; therefore we set those values to zero (map
+ * value of 255)
+ *
+ * - the source is assigned to a previous (with respect to the
+ * mux_assignment order) destination; therefore we set those values
+ * to the value previously reported for that source
+ */
+static void scarlett2_update_meter_level_map(struct scarlett2_data *private)
+{
+ const struct scarlett2_device_info *info = private->info;
+ const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count;
+ int line_out_count =
+ port_count[SCARLETT2_PORT_TYPE_ANALOGUE][SCARLETT2_PORT_OUT];
+ const struct scarlett2_meter_entry *entry;
+
+ /* sources already assigned to a destination
+ * value is 255 for None, otherwise the value of i
+ * (index into array returned by
+ * scarlett2_usb_get_meter_levels())
+ */
+ u8 seen_src[SCARLETT2_MAX_SRCS] = { 1 };
+ u8 seen_src_value[SCARLETT2_MAX_SRCS] = { 255 };
+
+ /* index in meter_map[] order */
+ int i = 0;
+
+ /* go through the meter_map[] entries */
+ for (entry = info->meter_map;
+ entry->count;
+ entry++) {
+
+ /* fill in each meter_level_map[] entry */
+ int j, mux_idx;
+
+ for (j = 0, mux_idx = entry->start;
+ j < entry->count;
+ i++, j++, mux_idx++) {
+
+ /* convert mux_idx using line_out_unmap[] */
+ int map_mux_idx = (
+ info->line_out_remap_enable &&
+ mux_idx < line_out_count
+ ) ? info->line_out_unmap[mux_idx]
+ : mux_idx;
+
+ /* check which source is connected, and if
+ * that source is already connected elsewhere,
+ * use that existing connection's destination
+ * for this meter entry instead
+ */
+ int mux_src = private->mux[mux_idx];
+
+ if (!seen_src[mux_src]) {
+ seen_src[mux_src] = 1;
+ seen_src_value[mux_src] = i;
+ }
+ private->meter_level_map[map_mux_idx] =
+ seen_src_value[mux_src];
+ }
+ }
+}
+
+/* Send USB message to get mux inputs and then populate private->mux[] */
+static int scarlett2_usb_get_mux(struct usb_mixer_interface *mixer)
+{
+ struct scarlett2_data *private = mixer->private_data;
+ int count = private->num_mux_dsts;
+ int err, i;
+
+ struct {
+ __le16 num;
+ __le16 count;
+ } __packed req;
+
+ __le32 data[SCARLETT2_MUX_MAX];
+
+ private->mux_updated = 0;
+
+ req.num = 0;
+ req.count = cpu_to_le16(count);
+
+ err = scarlett2_usb(mixer, SCARLETT2_USB_GET_MUX,
+ &req, sizeof(req),
+ data, count * sizeof(u32));
+ if (err < 0)
+ return err;
+
+ for (i = 0; i < count; i++)
+ scarlett2_usb_populate_mux(private, le32_to_cpu(data[i]));
+
+ scarlett2_update_meter_level_map(private);
+
+ return 0;
+}
+
+/* Send USB messages to set mux inputs */
+static int scarlett2_usb_set_mux(struct usb_mixer_interface *mixer)
+{
+ struct scarlett2_data *private = mixer->private_data;
+ const struct scarlett2_device_info *info = private->info;
+ const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count;
+ int table;
+
+ struct {
+ __le16 pad;
+ __le16 num;
+ __le32 data[SCARLETT2_MUX_MAX];
+ } __packed req;
+
+ req.pad = 0;
+
+ /* set mux settings for each rate */
+ for (table = 0; table < SCARLETT2_MUX_TABLES; table++) {
+ const struct scarlett2_mux_entry *entry;
+
+ /* i counts over the output array */
+ int i = 0, err;
+
+ req.num = cpu_to_le16(table);
+
+ /* loop through each entry */
+ for (entry = info->mux_assignment[table];
+ entry->count;
+ entry++) {
+ int j;
+ int port_type = entry->port_type;
+ int port_idx = entry->start;
+ int mux_idx = scarlett2_get_port_start_num(port_count,
+ SCARLETT2_PORT_OUT, port_type) + port_idx;
+ int dst_id = scarlett2_ports[port_type].id + port_idx;
+
+ /* Empty slots */
+ if (!dst_id) {
+ for (j = 0; j < entry->count; j++)
+ req.data[i++] = 0;
+ continue;
+ }
+
+ /* Non-empty mux slots use the lower 12 bits
+ * for the destination and next 12 bits for
+ * the source
+ */
+ for (j = 0; j < entry->count; j++) {
+ int src_id = scarlett2_mux_src_num_to_id(
+ port_count, private->mux[mux_idx++]);
+ req.data[i++] = cpu_to_le32(dst_id |
+ src_id << 12);
+ dst_id++;
+ }
+ }
+
+ err = scarlett2_usb(mixer, SCARLETT2_USB_SET_MUX,
+ &req, (i + 1) * sizeof(u32),
+ NULL, 0);
+ if (err < 0)
+ return err;
+ }
+
+ scarlett2_update_meter_level_map(private);
+
+ return 0;
+}
+
+/* Send USB message to get meter levels */
+static int scarlett2_usb_get_meter_levels(struct usb_mixer_interface *mixer,
+ u16 num_meters, u16 *levels)
+{
+ struct {
+ __le16 pad;
+ __le16 num_meters;
+ __le32 magic;
+ } __packed req;
+ u32 resp[SCARLETT2_MAX_METERS];
+ int i, err;
+
+ req.pad = 0;
+ req.num_meters = cpu_to_le16(num_meters);
+ req.magic = cpu_to_le32(SCARLETT2_USB_METER_LEVELS_GET_MAGIC);
+ err = scarlett2_usb(mixer, SCARLETT2_USB_GET_METER,
+ &req, sizeof(req), resp, num_meters * sizeof(u32));
+ if (err < 0)
+ return err;
+
+ /* copy, convert to u16 */
+ for (i = 0; i < num_meters; i++)
+ levels[i] = resp[i];
+
+ return 0;
+}
+
+/*** Control Functions ***/
+
+/* helper function to create a new control */
+static int scarlett2_add_new_ctl(struct usb_mixer_interface *mixer,
+ const struct snd_kcontrol_new *ncontrol,
+ int index, int channels, const char *name,
+ struct snd_kcontrol **kctl_return)
+{
+ struct snd_kcontrol *kctl;
+ struct usb_mixer_elem_info *elem;
+ int err;
+
+ elem = kzalloc(sizeof(*elem), GFP_KERNEL);
+ if (!elem)
+ return -ENOMEM;
+
+ /* We set USB_MIXER_BESPOKEN type, so that the core USB mixer code
+ * ignores them for resume and other operations.
+ * Also, the head.id field is set to 0, as we don't use this field.
+ */
+ elem->head.mixer = mixer;
+ elem->control = index;
+ elem->head.id = 0;
+ elem->channels = channels;
+ elem->val_type = USB_MIXER_BESPOKEN;
+
+ kctl = snd_ctl_new1(ncontrol, elem);
+ if (!kctl) {
+ kfree(elem);
+ return -ENOMEM;
+ }
+ kctl->private_free = snd_usb_mixer_elem_free;
+
+ strscpy(kctl->id.name, name, sizeof(kctl->id.name));
+
+ err = snd_usb_mixer_add_control(&elem->head, kctl);
+ if (err < 0)
+ return err;
+
+ if (kctl_return)
+ *kctl_return = kctl;
+
+ return 0;
+}
+
+/*** Firmware Version Control ***/
+
+static int scarlett2_firmware_version_ctl_get(
+ struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct scarlett2_data *private = elem->head.mixer->private_data;
+
+ ucontrol->value.integer.value[0] = private->firmware_version;
+
+ return 0;
+}
+
+static int scarlett2_firmware_version_ctl_info(
+ struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_info *uinfo)
+{
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = 1;
+
+ return 0;
+}
+
+static const struct snd_kcontrol_new scarlett2_firmware_version_ctl = {
+ .iface = SNDRV_CTL_ELEM_IFACE_CARD,
+ .access = SNDRV_CTL_ELEM_ACCESS_READ,
+ .name = "",
+ .info = scarlett2_firmware_version_ctl_info,
+ .get = scarlett2_firmware_version_ctl_get
+};
+
+static int scarlett2_add_firmware_version_ctl(
+ struct usb_mixer_interface *mixer)
+{
+ return scarlett2_add_new_ctl(mixer, &scarlett2_firmware_version_ctl,
+ 0, 0, "Firmware Version", NULL);
+}
+/*** Sync Control ***/
+
+/* Update sync control after receiving notification that the status
+ * has changed
+ */
+static int scarlett2_update_sync(struct usb_mixer_interface *mixer)
+{
+ struct scarlett2_data *private = mixer->private_data;
+
+ private->sync_updated = 0;
+ return scarlett2_usb_get_sync_status(mixer, &private->sync);
+}
+
+static int scarlett2_sync_ctl_info(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_info *uinfo)
+{
+ static const char *texts[2] = {
+ "Unlocked", "Locked"
+ };
+ return snd_ctl_enum_info(uinfo, 1, 2, texts);
+}
+
+static int scarlett2_sync_ctl_get(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct usb_mixer_interface *mixer = elem->head.mixer;
+ struct scarlett2_data *private = mixer->private_data;
+
+ mutex_lock(&private->data_mutex);
+ if (private->sync_updated)
+ scarlett2_update_sync(mixer);
+ ucontrol->value.enumerated.item[0] = private->sync;
+ mutex_unlock(&private->data_mutex);
+
+ return 0;
+}
+
+static const struct snd_kcontrol_new scarlett2_sync_ctl = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .access = SNDRV_CTL_ELEM_ACCESS_READ,
+ .name = "",
+ .info = scarlett2_sync_ctl_info,
+ .get = scarlett2_sync_ctl_get
+};
+
+static int scarlett2_add_sync_ctl(struct usb_mixer_interface *mixer)
+{
+ struct scarlett2_data *private = mixer->private_data;
+
+ /* devices without a mixer also don't support reporting sync status */
+ if (private->info->config_set == SCARLETT2_CONFIG_SET_GEN_3A)
+ return 0;
+
+ return scarlett2_add_new_ctl(mixer, &scarlett2_sync_ctl,
+ 0, 1, "Sync Status", &private->sync_ctl);
+}
+
+/*** Analogue Line Out Volume Controls ***/
+
+/* Update hardware volume controls after receiving notification that
+ * they have changed
+ */
+static int scarlett2_update_volumes(struct usb_mixer_interface *mixer)
+{
+ struct scarlett2_data *private = mixer->private_data;
+ const struct scarlett2_device_info *info = private->info;
+ const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count;
+ struct scarlett2_usb_volume_status volume_status;
+ int num_line_out =
+ port_count[SCARLETT2_PORT_TYPE_ANALOGUE][SCARLETT2_PORT_OUT];
+ int err, i;
+ int mute;
+
+ private->vol_updated = 0;
+
+ err = scarlett2_usb_get_volume_status(mixer, &volume_status);
+ if (err < 0)
+ return err;
+
+ private->master_vol = clamp(
+ volume_status.master_vol + SCARLETT2_VOLUME_BIAS,
+ 0, SCARLETT2_VOLUME_BIAS);
+
+ if (info->line_out_hw_vol)
+ for (i = 0; i < SCARLETT2_DIM_MUTE_COUNT; i++)
+ private->dim_mute[i] = !!volume_status.dim_mute[i];
+
+ mute = private->dim_mute[SCARLETT2_BUTTON_MUTE];
+
+ for (i = 0; i < num_line_out; i++)
+ if (private->vol_sw_hw_switch[i]) {
+ private->vol[i] = private->master_vol;
+ private->mute_switch[i] = mute;
+ }
+
+ return 0;
+}
+
+static int scarlett2_volume_ctl_info(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_info *uinfo)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = elem->channels;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = SCARLETT2_VOLUME_BIAS;
+ uinfo->value.integer.step = 1;
+ return 0;
+}
+
+static int scarlett2_master_volume_ctl_get(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct usb_mixer_interface *mixer = elem->head.mixer;
+ struct scarlett2_data *private = mixer->private_data;
+
+ mutex_lock(&private->data_mutex);
+ if (private->vol_updated)
+ scarlett2_update_volumes(mixer);
+ mutex_unlock(&private->data_mutex);
+
+ ucontrol->value.integer.value[0] = private->master_vol;
+ return 0;
+}
+
+static int line_out_remap(struct scarlett2_data *private, int index)
+{
+ const struct scarlett2_device_info *info = private->info;
+ const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count;
+ int line_out_count =
+ port_count[SCARLETT2_PORT_TYPE_ANALOGUE][SCARLETT2_PORT_OUT];
+
+ if (!info->line_out_remap_enable)
+ return index;
+
+ if (index >= line_out_count)
+ return index;
+
+ return info->line_out_remap[index];
+}
+
+static int scarlett2_volume_ctl_get(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct usb_mixer_interface *mixer = elem->head.mixer;
+ struct scarlett2_data *private = mixer->private_data;
+ int index = line_out_remap(private, elem->control);
+
+ mutex_lock(&private->data_mutex);
+ if (private->vol_updated)
+ scarlett2_update_volumes(mixer);
+ mutex_unlock(&private->data_mutex);
+
+ ucontrol->value.integer.value[0] = private->vol[index];
+ return 0;
+}
+
+static int scarlett2_volume_ctl_put(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct usb_mixer_interface *mixer = elem->head.mixer;
+ struct scarlett2_data *private = mixer->private_data;
+ int index = line_out_remap(private, elem->control);
+ int oval, val, err = 0;
+
+ mutex_lock(&private->data_mutex);
+
+ oval = private->vol[index];
+ val = ucontrol->value.integer.value[0];
+
+ if (oval == val)
+ goto unlock;
+
+ private->vol[index] = val;
+ err = scarlett2_usb_set_config(mixer, SCARLETT2_CONFIG_LINE_OUT_VOLUME,
+ index, val - SCARLETT2_VOLUME_BIAS);
+ if (err == 0)
+ err = 1;
+
+unlock:
+ mutex_unlock(&private->data_mutex);
+ return err;
+}
+
+static const DECLARE_TLV_DB_MINMAX(
+ db_scale_scarlett2_gain, -SCARLETT2_VOLUME_BIAS * 100, 0
+);
+
+static const struct snd_kcontrol_new scarlett2_master_volume_ctl = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .access = SNDRV_CTL_ELEM_ACCESS_READ |
+ SNDRV_CTL_ELEM_ACCESS_TLV_READ,
+ .name = "",
+ .info = scarlett2_volume_ctl_info,
+ .get = scarlett2_master_volume_ctl_get,
+ .private_value = 0, /* max value */
+ .tlv = { .p = db_scale_scarlett2_gain }
+};
+
+static const struct snd_kcontrol_new scarlett2_line_out_volume_ctl = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
+ SNDRV_CTL_ELEM_ACCESS_TLV_READ,
+ .name = "",
+ .info = scarlett2_volume_ctl_info,
+ .get = scarlett2_volume_ctl_get,
+ .put = scarlett2_volume_ctl_put,
+ .private_value = 0, /* max value */
+ .tlv = { .p = db_scale_scarlett2_gain }
+};
+
+/*** Mute Switch Controls ***/
+
+static int scarlett2_mute_ctl_get(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct usb_mixer_interface *mixer = elem->head.mixer;
+ struct scarlett2_data *private = mixer->private_data;
+ int index = line_out_remap(private, elem->control);
+
+ mutex_lock(&private->data_mutex);
+ if (private->vol_updated)
+ scarlett2_update_volumes(mixer);
+ mutex_unlock(&private->data_mutex);
+
+ ucontrol->value.integer.value[0] = private->mute_switch[index];
+ return 0;
+}
+
+static int scarlett2_mute_ctl_put(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct usb_mixer_interface *mixer = elem->head.mixer;
+ struct scarlett2_data *private = mixer->private_data;
+ int index = line_out_remap(private, elem->control);
+ int oval, val, err = 0;
+
+ mutex_lock(&private->data_mutex);
+
+ oval = private->mute_switch[index];
+ val = !!ucontrol->value.integer.value[0];
+
+ if (oval == val)
+ goto unlock;
+
+ private->mute_switch[index] = val;
+
+ /* Send mute change to the device */
+ err = scarlett2_usb_set_config(mixer, SCARLETT2_CONFIG_MUTE_SWITCH,
+ index, val);
+ if (err == 0)
+ err = 1;
+
+unlock:
+ mutex_unlock(&private->data_mutex);
+ return err;
+}
+
+static const struct snd_kcontrol_new scarlett2_mute_ctl = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "",
+ .info = snd_ctl_boolean_mono_info,
+ .get = scarlett2_mute_ctl_get,
+ .put = scarlett2_mute_ctl_put,
+};
+
+/*** HW/SW Volume Switch Controls ***/
+
+static void scarlett2_sw_hw_ctl_ro(struct scarlett2_data *private, int index)
+{
+ private->sw_hw_ctls[index]->vd[0].access &=
+ ~SNDRV_CTL_ELEM_ACCESS_WRITE;
+}
+
+static void scarlett2_sw_hw_ctl_rw(struct scarlett2_data *private, int index)
+{
+ private->sw_hw_ctls[index]->vd[0].access |=
+ SNDRV_CTL_ELEM_ACCESS_WRITE;
+}
+
+static int scarlett2_sw_hw_enum_ctl_info(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_info *uinfo)
+{
+ static const char *const values[2] = {
+ "SW", "HW"
+ };
+
+ return snd_ctl_enum_info(uinfo, 1, 2, values);
+}
+
+static int scarlett2_sw_hw_enum_ctl_get(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct scarlett2_data *private = elem->head.mixer->private_data;
+ int index = line_out_remap(private, elem->control);
+
+ ucontrol->value.enumerated.item[0] = private->vol_sw_hw_switch[index];
+ return 0;
+}
+
+static void scarlett2_vol_ctl_set_writable(struct usb_mixer_interface *mixer,
+ int index, int value)
+{
+ struct scarlett2_data *private = mixer->private_data;
+ struct snd_card *card = mixer->chip->card;
+
+ /* Set/Clear write bits */
+ if (value) {
+ private->vol_ctls[index]->vd[0].access |=
+ SNDRV_CTL_ELEM_ACCESS_WRITE;
+ private->mute_ctls[index]->vd[0].access |=
+ SNDRV_CTL_ELEM_ACCESS_WRITE;
+ } else {
+ private->vol_ctls[index]->vd[0].access &=
+ ~SNDRV_CTL_ELEM_ACCESS_WRITE;
+ private->mute_ctls[index]->vd[0].access &=
+ ~SNDRV_CTL_ELEM_ACCESS_WRITE;
+ }
+
+ /* Notify of write bit and possible value change */
+ snd_ctl_notify(card,
+ SNDRV_CTL_EVENT_MASK_VALUE | SNDRV_CTL_EVENT_MASK_INFO,
+ &private->vol_ctls[index]->id);
+ snd_ctl_notify(card,
+ SNDRV_CTL_EVENT_MASK_VALUE | SNDRV_CTL_EVENT_MASK_INFO,
+ &private->mute_ctls[index]->id);
+}
+
+static int scarlett2_sw_hw_change(struct usb_mixer_interface *mixer,
+ int ctl_index, int val)
+{
+ struct scarlett2_data *private = mixer->private_data;
+ int index = line_out_remap(private, ctl_index);
+ int err;
+
+ private->vol_sw_hw_switch[index] = val;
+
+ /* Change access mode to RO (hardware controlled volume)
+ * or RW (software controlled volume)
+ */
+ scarlett2_vol_ctl_set_writable(mixer, ctl_index, !val);
+
+ /* Reset volume/mute to master volume/mute */
+ private->vol[index] = private->master_vol;
+ private->mute_switch[index] = private->dim_mute[SCARLETT2_BUTTON_MUTE];
+
+ /* Set SW volume to current HW volume */
+ err = scarlett2_usb_set_config(
+ mixer, SCARLETT2_CONFIG_LINE_OUT_VOLUME,
+ index, private->master_vol - SCARLETT2_VOLUME_BIAS);
+ if (err < 0)
+ return err;
+
+ /* Set SW mute to current HW mute */
+ err = scarlett2_usb_set_config(
+ mixer, SCARLETT2_CONFIG_MUTE_SWITCH,
+ index, private->dim_mute[SCARLETT2_BUTTON_MUTE]);
+ if (err < 0)
+ return err;
+
+ /* Send SW/HW switch change to the device */
+ return scarlett2_usb_set_config(mixer, SCARLETT2_CONFIG_SW_HW_SWITCH,
+ index, val);
+}
+
+static int scarlett2_sw_hw_enum_ctl_put(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct usb_mixer_interface *mixer = elem->head.mixer;
+ struct scarlett2_data *private = mixer->private_data;
+ int ctl_index = elem->control;
+ int index = line_out_remap(private, ctl_index);
+ int oval, val, err = 0;
+
+ mutex_lock(&private->data_mutex);
+
+ oval = private->vol_sw_hw_switch[index];
+ val = !!ucontrol->value.enumerated.item[0];
+
+ if (oval == val)
+ goto unlock;
+
+ err = scarlett2_sw_hw_change(mixer, ctl_index, val);
+ if (err == 0)
+ err = 1;
+
+unlock:
+ mutex_unlock(&private->data_mutex);
+ return err;
+}
+
+static const struct snd_kcontrol_new scarlett2_sw_hw_enum_ctl = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "",
+ .info = scarlett2_sw_hw_enum_ctl_info,
+ .get = scarlett2_sw_hw_enum_ctl_get,
+ .put = scarlett2_sw_hw_enum_ctl_put,
+};
+
+/*** Line Level/Instrument Level Switch Controls ***/
+
+static int scarlett2_update_input_other(struct usb_mixer_interface *mixer)
+{
+ struct scarlett2_data *private = mixer->private_data;
+ const struct scarlett2_device_info *info = private->info;
+
+ private->input_other_updated = 0;
+
+ if (info->level_input_count) {
+ int err = scarlett2_usb_get_config(
+ mixer, SCARLETT2_CONFIG_LEVEL_SWITCH,
+ info->level_input_count + info->level_input_first,
+ private->level_switch);
+ if (err < 0)
+ return err;
+ }
+
+ if (info->pad_input_count) {
+ int err = scarlett2_usb_get_config(
+ mixer, SCARLETT2_CONFIG_PAD_SWITCH,
+ info->pad_input_count, private->pad_switch);
+ if (err < 0)
+ return err;
+ }
+
+ if (info->air_input_count) {
+ int err = scarlett2_usb_get_config(
+ mixer, SCARLETT2_CONFIG_AIR_SWITCH,
+ info->air_input_count, private->air_switch);
+ if (err < 0)
+ return err;
+ }
+
+ if (info->phantom_count) {
+ int err = scarlett2_usb_get_config(
+ mixer, SCARLETT2_CONFIG_PHANTOM_SWITCH,
+ info->phantom_count, private->phantom_switch);
+ if (err < 0)
+ return err;
+
+ err = scarlett2_usb_get_config(
+ mixer, SCARLETT2_CONFIG_PHANTOM_PERSISTENCE,
+ 1, &private->phantom_persistence);
+ if (err < 0)
+ return err;
+ }
+
+ return 0;
+}
+
+static int scarlett2_level_enum_ctl_info(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_info *uinfo)
+{
+ static const char *const values[2] = {
+ "Line", "Inst"
+ };
+
+ return snd_ctl_enum_info(uinfo, 1, 2, values);
+}
+
+static int scarlett2_level_enum_ctl_get(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct usb_mixer_interface *mixer = elem->head.mixer;
+ struct scarlett2_data *private = mixer->private_data;
+ const struct scarlett2_device_info *info = private->info;
+
+ int index = elem->control + info->level_input_first;
+
+ mutex_lock(&private->data_mutex);
+ if (private->input_other_updated)
+ scarlett2_update_input_other(mixer);
+ ucontrol->value.enumerated.item[0] = private->level_switch[index];
+ mutex_unlock(&private->data_mutex);
+
+ return 0;
+}
+
+static int scarlett2_level_enum_ctl_put(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct usb_mixer_interface *mixer = elem->head.mixer;
+ struct scarlett2_data *private = mixer->private_data;
+ const struct scarlett2_device_info *info = private->info;
+
+ int index = elem->control + info->level_input_first;
+ int oval, val, err = 0;
+
+ mutex_lock(&private->data_mutex);
+
+ oval = private->level_switch[index];
+ val = !!ucontrol->value.enumerated.item[0];
+
+ if (oval == val)
+ goto unlock;
+
+ private->level_switch[index] = val;
+
+ /* Send switch change to the device */
+ err = scarlett2_usb_set_config(mixer, SCARLETT2_CONFIG_LEVEL_SWITCH,
+ index, val);
+ if (err == 0)
+ err = 1;
+
+unlock:
+ mutex_unlock(&private->data_mutex);
+ return err;
+}
+
+static const struct snd_kcontrol_new scarlett2_level_enum_ctl = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "",
+ .info = scarlett2_level_enum_ctl_info,
+ .get = scarlett2_level_enum_ctl_get,
+ .put = scarlett2_level_enum_ctl_put,
+};
+
+/*** Pad Switch Controls ***/
+
+static int scarlett2_pad_ctl_get(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct usb_mixer_interface *mixer = elem->head.mixer;
+ struct scarlett2_data *private = mixer->private_data;
+
+ mutex_lock(&private->data_mutex);
+ if (private->input_other_updated)
+ scarlett2_update_input_other(mixer);
+ ucontrol->value.integer.value[0] =
+ private->pad_switch[elem->control];
+ mutex_unlock(&private->data_mutex);
+
+ return 0;
+}
+
+static int scarlett2_pad_ctl_put(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct usb_mixer_interface *mixer = elem->head.mixer;
+ struct scarlett2_data *private = mixer->private_data;
+
+ int index = elem->control;
+ int oval, val, err = 0;
+
+ mutex_lock(&private->data_mutex);
+
+ oval = private->pad_switch[index];
+ val = !!ucontrol->value.integer.value[0];
+
+ if (oval == val)
+ goto unlock;
+
+ private->pad_switch[index] = val;
+
+ /* Send switch change to the device */
+ err = scarlett2_usb_set_config(mixer, SCARLETT2_CONFIG_PAD_SWITCH,
+ index, val);
+ if (err == 0)
+ err = 1;
+
+unlock:
+ mutex_unlock(&private->data_mutex);
+ return err;
+}
+
+static const struct snd_kcontrol_new scarlett2_pad_ctl = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "",
+ .info = snd_ctl_boolean_mono_info,
+ .get = scarlett2_pad_ctl_get,
+ .put = scarlett2_pad_ctl_put,
+};
+
+/*** Air Switch Controls ***/
+
+static int scarlett2_air_ctl_get(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct usb_mixer_interface *mixer = elem->head.mixer;
+ struct scarlett2_data *private = mixer->private_data;
+
+ mutex_lock(&private->data_mutex);
+ if (private->input_other_updated)
+ scarlett2_update_input_other(mixer);
+ ucontrol->value.integer.value[0] = private->air_switch[elem->control];
+ mutex_unlock(&private->data_mutex);
+
+ return 0;
+}
+
+static int scarlett2_air_ctl_put(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct usb_mixer_interface *mixer = elem->head.mixer;
+ struct scarlett2_data *private = mixer->private_data;
+
+ int index = elem->control;
+ int oval, val, err = 0;
+
+ mutex_lock(&private->data_mutex);
+
+ oval = private->air_switch[index];
+ val = !!ucontrol->value.integer.value[0];
+
+ if (oval == val)
+ goto unlock;
+
+ private->air_switch[index] = val;
+
+ /* Send switch change to the device */
+ err = scarlett2_usb_set_config(mixer, SCARLETT2_CONFIG_AIR_SWITCH,
+ index, val);
+ if (err == 0)
+ err = 1;
+
+unlock:
+ mutex_unlock(&private->data_mutex);
+ return err;
+}
+
+static const struct snd_kcontrol_new scarlett2_air_ctl = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "",
+ .info = snd_ctl_boolean_mono_info,
+ .get = scarlett2_air_ctl_get,
+ .put = scarlett2_air_ctl_put,
+};
+
+/*** Phantom Switch Controls ***/
+
+static int scarlett2_phantom_ctl_get(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct usb_mixer_interface *mixer = elem->head.mixer;
+ struct scarlett2_data *private = mixer->private_data;
+
+ mutex_lock(&private->data_mutex);
+ if (private->input_other_updated)
+ scarlett2_update_input_other(mixer);
+ ucontrol->value.integer.value[0] =
+ private->phantom_switch[elem->control];
+ mutex_unlock(&private->data_mutex);
+
+ return 0;
+}
+
+static int scarlett2_phantom_ctl_put(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct usb_mixer_interface *mixer = elem->head.mixer;
+ struct scarlett2_data *private = mixer->private_data;
+
+ int index = elem->control;
+ int oval, val, err = 0;
+
+ mutex_lock(&private->data_mutex);
+
+ oval = private->phantom_switch[index];
+ val = !!ucontrol->value.integer.value[0];
+
+ if (oval == val)
+ goto unlock;
+
+ private->phantom_switch[index] = val;
+
+ /* Send switch change to the device */
+ err = scarlett2_usb_set_config(mixer, SCARLETT2_CONFIG_PHANTOM_SWITCH,
+ index, val);
+ if (err == 0)
+ err = 1;
+
+unlock:
+ mutex_unlock(&private->data_mutex);
+ return err;
+}
+
+static const struct snd_kcontrol_new scarlett2_phantom_ctl = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "",
+ .info = snd_ctl_boolean_mono_info,
+ .get = scarlett2_phantom_ctl_get,
+ .put = scarlett2_phantom_ctl_put,
+};
+
+/*** Phantom Persistence Control ***/
+
+static int scarlett2_phantom_persistence_ctl_get(
+ struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct scarlett2_data *private = elem->head.mixer->private_data;
+
+ ucontrol->value.integer.value[0] = private->phantom_persistence;
+ return 0;
+}
+
+static int scarlett2_phantom_persistence_ctl_put(
+ struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct usb_mixer_interface *mixer = elem->head.mixer;
+ struct scarlett2_data *private = mixer->private_data;
+
+ int index = elem->control;
+ int oval, val, err = 0;
+
+ mutex_lock(&private->data_mutex);
+
+ oval = private->phantom_persistence;
+ val = !!ucontrol->value.integer.value[0];
+
+ if (oval == val)
+ goto unlock;
+
+ private->phantom_persistence = val;
+
+ /* Send switch change to the device */
+ err = scarlett2_usb_set_config(
+ mixer, SCARLETT2_CONFIG_PHANTOM_PERSISTENCE, index, val);
+ if (err == 0)
+ err = 1;
+
+unlock:
+ mutex_unlock(&private->data_mutex);
+ return err;
+}
+
+static const struct snd_kcontrol_new scarlett2_phantom_persistence_ctl = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "",
+ .info = snd_ctl_boolean_mono_info,
+ .get = scarlett2_phantom_persistence_ctl_get,
+ .put = scarlett2_phantom_persistence_ctl_put,
+};
+
+/*** Direct Monitor Control ***/
+
+static int scarlett2_update_monitor_other(struct usb_mixer_interface *mixer)
+{
+ struct scarlett2_data *private = mixer->private_data;
+ const struct scarlett2_device_info *info = private->info;
+ int err;
+
+ /* monitor_other_enable[0] enables speaker switching
+ * monitor_other_enable[1] enables talkback
+ */
+ u8 monitor_other_enable[2];
+
+ /* monitor_other_switch[0] activates the alternate speakers
+ * monitor_other_switch[1] activates talkback
+ */
+ u8 monitor_other_switch[2];
+
+ private->monitor_other_updated = 0;
+
+ if (info->direct_monitor)
+ return scarlett2_usb_get_config(
+ mixer, SCARLETT2_CONFIG_DIRECT_MONITOR,
+ 1, &private->direct_monitor_switch);
+
+ /* if it doesn't do speaker switching then it also doesn't do
+ * talkback
+ */
+ if (!info->has_speaker_switching)
+ return 0;
+
+ err = scarlett2_usb_get_config(
+ mixer, SCARLETT2_CONFIG_MONITOR_OTHER_ENABLE,
+ 2, monitor_other_enable);
+ if (err < 0)
+ return err;
+
+ err = scarlett2_usb_get_config(
+ mixer, SCARLETT2_CONFIG_MONITOR_OTHER_SWITCH,
+ 2, monitor_other_switch);
+ if (err < 0)
+ return err;
+
+ if (!monitor_other_enable[0])
+ private->speaker_switching_switch = 0;
+ else
+ private->speaker_switching_switch = monitor_other_switch[0] + 1;
+
+ if (info->has_talkback) {
+ const int (*port_count)[SCARLETT2_PORT_DIRNS] =
+ info->port_count;
+ int num_mixes =
+ port_count[SCARLETT2_PORT_TYPE_MIX][SCARLETT2_PORT_IN];
+ u16 bitmap;
+ int i;
+
+ if (!monitor_other_enable[1])
+ private->talkback_switch = 0;
+ else
+ private->talkback_switch = monitor_other_switch[1] + 1;
+
+ err = scarlett2_usb_get_config(mixer,
+ SCARLETT2_CONFIG_TALKBACK_MAP,
+ 1, &bitmap);
+ if (err < 0)
+ return err;
+ for (i = 0; i < num_mixes; i++, bitmap >>= 1)
+ private->talkback_map[i] = bitmap & 1;
+ }
+
+ return 0;
+}
+
+static int scarlett2_direct_monitor_ctl_get(
+ struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct usb_mixer_interface *mixer = elem->head.mixer;
+ struct scarlett2_data *private = elem->head.mixer->private_data;
+
+ mutex_lock(&private->data_mutex);
+ if (private->monitor_other_updated)
+ scarlett2_update_monitor_other(mixer);
+ ucontrol->value.enumerated.item[0] = private->direct_monitor_switch;
+ mutex_unlock(&private->data_mutex);
+
+ return 0;
+}
+
+static int scarlett2_direct_monitor_ctl_put(
+ struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct usb_mixer_interface *mixer = elem->head.mixer;
+ struct scarlett2_data *private = mixer->private_data;
+
+ int index = elem->control;
+ int oval, val, err = 0;
+
+ mutex_lock(&private->data_mutex);
+
+ oval = private->direct_monitor_switch;
+ val = min(ucontrol->value.enumerated.item[0], 2U);
+
+ if (oval == val)
+ goto unlock;
+
+ private->direct_monitor_switch = val;
+
+ /* Send switch change to the device */
+ err = scarlett2_usb_set_config(
+ mixer, SCARLETT2_CONFIG_DIRECT_MONITOR, index, val);
+ if (err == 0)
+ err = 1;
+
+unlock:
+ mutex_unlock(&private->data_mutex);
+ return err;
+}
+
+static int scarlett2_direct_monitor_stereo_enum_ctl_info(
+ struct snd_kcontrol *kctl, struct snd_ctl_elem_info *uinfo)
+{
+ static const char *const values[3] = {
+ "Off", "Mono", "Stereo"
+ };
+
+ return snd_ctl_enum_info(uinfo, 1, 3, values);
+}
+
+/* Direct Monitor for Solo is mono-only and only needs a boolean control
+ * Direct Monitor for 2i2 is selectable between Off/Mono/Stereo
+ */
+static const struct snd_kcontrol_new scarlett2_direct_monitor_ctl[2] = {
+ {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "",
+ .info = snd_ctl_boolean_mono_info,
+ .get = scarlett2_direct_monitor_ctl_get,
+ .put = scarlett2_direct_monitor_ctl_put,
+ },
+ {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "",
+ .info = scarlett2_direct_monitor_stereo_enum_ctl_info,
+ .get = scarlett2_direct_monitor_ctl_get,
+ .put = scarlett2_direct_monitor_ctl_put,
+ }
+};
+
+static int scarlett2_add_direct_monitor_ctl(struct usb_mixer_interface *mixer)
+{
+ struct scarlett2_data *private = mixer->private_data;
+ const struct scarlett2_device_info *info = private->info;
+ const char *s;
+
+ if (!info->direct_monitor)
+ return 0;
+
+ s = info->direct_monitor == 1
+ ? "Direct Monitor Playback Switch"
+ : "Direct Monitor Playback Enum";
+
+ return scarlett2_add_new_ctl(
+ mixer, &scarlett2_direct_monitor_ctl[info->direct_monitor - 1],
+ 0, 1, s, &private->direct_monitor_ctl);
+}
+
+/*** Speaker Switching Control ***/
+
+static int scarlett2_speaker_switch_enum_ctl_info(
+ struct snd_kcontrol *kctl, struct snd_ctl_elem_info *uinfo)
+{
+ static const char *const values[3] = {
+ "Off", "Main", "Alt"
+ };
+
+ return snd_ctl_enum_info(uinfo, 1, 3, values);
+}
+
+static int scarlett2_speaker_switch_enum_ctl_get(
+ struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct usb_mixer_interface *mixer = elem->head.mixer;
+ struct scarlett2_data *private = mixer->private_data;
+
+ mutex_lock(&private->data_mutex);
+ if (private->monitor_other_updated)
+ scarlett2_update_monitor_other(mixer);
+ ucontrol->value.enumerated.item[0] = private->speaker_switching_switch;
+ mutex_unlock(&private->data_mutex);
+
+ return 0;
+}
+
+/* when speaker switching gets enabled, switch the main/alt speakers
+ * to HW volume and disable those controls
+ */
+static int scarlett2_speaker_switch_enable(struct usb_mixer_interface *mixer)
+{
+ struct snd_card *card = mixer->chip->card;
+ struct scarlett2_data *private = mixer->private_data;
+ int i, err;
+
+ for (i = 0; i < 4; i++) {
+ int index = line_out_remap(private, i);
+
+ /* switch the main/alt speakers to HW volume */
+ if (!private->vol_sw_hw_switch[index]) {
+ err = scarlett2_sw_hw_change(private->mixer, i, 1);
+ if (err < 0)
+ return err;
+ }
+
+ /* disable the line out SW/HW switch */
+ scarlett2_sw_hw_ctl_ro(private, i);
+ snd_ctl_notify(card,
+ SNDRV_CTL_EVENT_MASK_VALUE |
+ SNDRV_CTL_EVENT_MASK_INFO,
+ &private->sw_hw_ctls[i]->id);
+ }
+
+ /* when the next monitor-other notify comes in, update the mux
+ * configuration
+ */
+ private->speaker_switching_switched = 1;
+
+ return 0;
+}
+
+/* when speaker switching gets disabled, reenable the hw/sw controls
+ * and invalidate the routing
+ */
+static void scarlett2_speaker_switch_disable(struct usb_mixer_interface *mixer)
+{
+ struct snd_card *card = mixer->chip->card;
+ struct scarlett2_data *private = mixer->private_data;
+ int i;
+
+ /* enable the line out SW/HW switch */
+ for (i = 0; i < 4; i++) {
+ scarlett2_sw_hw_ctl_rw(private, i);
+ snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_INFO,
+ &private->sw_hw_ctls[i]->id);
+ }
+
+ /* when the next monitor-other notify comes in, update the mux
+ * configuration
+ */
+ private->speaker_switching_switched = 1;
+}
+
+static int scarlett2_speaker_switch_enum_ctl_put(
+ struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct usb_mixer_interface *mixer = elem->head.mixer;
+ struct scarlett2_data *private = mixer->private_data;
+
+ int oval, val, err = 0;
+
+ mutex_lock(&private->data_mutex);
+
+ oval = private->speaker_switching_switch;
+ val = min(ucontrol->value.enumerated.item[0], 2U);
+
+ if (oval == val)
+ goto unlock;
+
+ private->speaker_switching_switch = val;
+
+ /* enable/disable speaker switching */
+ err = scarlett2_usb_set_config(
+ mixer, SCARLETT2_CONFIG_MONITOR_OTHER_ENABLE,
+ 0, !!val);
+ if (err < 0)
+ goto unlock;
+
+ /* if speaker switching is enabled, select main or alt */
+ err = scarlett2_usb_set_config(
+ mixer, SCARLETT2_CONFIG_MONITOR_OTHER_SWITCH,
+ 0, val == 2);
+ if (err < 0)
+ goto unlock;
+
+ /* update controls if speaker switching gets enabled or disabled */
+ if (!oval && val)
+ err = scarlett2_speaker_switch_enable(mixer);
+ else if (oval && !val)
+ scarlett2_speaker_switch_disable(mixer);
+
+ if (err == 0)
+ err = 1;
+
+unlock:
+ mutex_unlock(&private->data_mutex);
+ return err;
+}
+
+static const struct snd_kcontrol_new scarlett2_speaker_switch_enum_ctl = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "",
+ .info = scarlett2_speaker_switch_enum_ctl_info,
+ .get = scarlett2_speaker_switch_enum_ctl_get,
+ .put = scarlett2_speaker_switch_enum_ctl_put,
+};
+
+static int scarlett2_add_speaker_switch_ctl(
+ struct usb_mixer_interface *mixer)
+{
+ struct scarlett2_data *private = mixer->private_data;
+ const struct scarlett2_device_info *info = private->info;
+
+ if (!info->has_speaker_switching)
+ return 0;
+
+ return scarlett2_add_new_ctl(
+ mixer, &scarlett2_speaker_switch_enum_ctl,
+ 0, 1, "Speaker Switching Playback Enum",
+ &private->speaker_switching_ctl);
+}
+
+/*** Talkback and Talkback Map Controls ***/
+
+static int scarlett2_talkback_enum_ctl_info(
+ struct snd_kcontrol *kctl, struct snd_ctl_elem_info *uinfo)
+{
+ static const char *const values[3] = {
+ "Disabled", "Off", "On"
+ };
+
+ return snd_ctl_enum_info(uinfo, 1, 3, values);
+}
+
+static int scarlett2_talkback_enum_ctl_get(
+ struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct usb_mixer_interface *mixer = elem->head.mixer;
+ struct scarlett2_data *private = mixer->private_data;
+
+ mutex_lock(&private->data_mutex);
+ if (private->monitor_other_updated)
+ scarlett2_update_monitor_other(mixer);
+ ucontrol->value.enumerated.item[0] = private->talkback_switch;
+ mutex_unlock(&private->data_mutex);
+
+ return 0;
+}
+
+static int scarlett2_talkback_enum_ctl_put(
+ struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct usb_mixer_interface *mixer = elem->head.mixer;
+ struct scarlett2_data *private = mixer->private_data;
+
+ int oval, val, err = 0;
+
+ mutex_lock(&private->data_mutex);
+
+ oval = private->talkback_switch;
+ val = min(ucontrol->value.enumerated.item[0], 2U);
+
+ if (oval == val)
+ goto unlock;
+
+ private->talkback_switch = val;
+
+ /* enable/disable talkback */
+ err = scarlett2_usb_set_config(
+ mixer, SCARLETT2_CONFIG_MONITOR_OTHER_ENABLE,
+ 1, !!val);
+ if (err < 0)
+ goto unlock;
+
+ /* if talkback is enabled, select main or alt */
+ err = scarlett2_usb_set_config(
+ mixer, SCARLETT2_CONFIG_MONITOR_OTHER_SWITCH,
+ 1, val == 2);
+ if (err == 0)
+ err = 1;
+
+unlock:
+ mutex_unlock(&private->data_mutex);
+ return err;
+}
+
+static const struct snd_kcontrol_new scarlett2_talkback_enum_ctl = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "",
+ .info = scarlett2_talkback_enum_ctl_info,
+ .get = scarlett2_talkback_enum_ctl_get,
+ .put = scarlett2_talkback_enum_ctl_put,
+};
+
+static int scarlett2_talkback_map_ctl_get(
+ struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct usb_mixer_interface *mixer = elem->head.mixer;
+ struct scarlett2_data *private = mixer->private_data;
+ int index = elem->control;
+
+ ucontrol->value.integer.value[0] = private->talkback_map[index];
+
+ return 0;
+}
+
+static int scarlett2_talkback_map_ctl_put(
+ struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct usb_mixer_interface *mixer = elem->head.mixer;
+ struct scarlett2_data *private = mixer->private_data;
+ const int (*port_count)[SCARLETT2_PORT_DIRNS] =
+ private->info->port_count;
+ int num_mixes = port_count[SCARLETT2_PORT_TYPE_MIX][SCARLETT2_PORT_IN];
+
+ int index = elem->control;
+ int oval, val, err = 0, i;
+ u16 bitmap = 0;
+
+ mutex_lock(&private->data_mutex);
+
+ oval = private->talkback_map[index];
+ val = !!ucontrol->value.integer.value[0];
+
+ if (oval == val)
+ goto unlock;
+
+ private->talkback_map[index] = val;
+
+ for (i = 0; i < num_mixes; i++)
+ bitmap |= private->talkback_map[i] << i;
+
+ /* Send updated bitmap to the device */
+ err = scarlett2_usb_set_config(mixer, SCARLETT2_CONFIG_TALKBACK_MAP,
+ 0, bitmap);
+ if (err == 0)
+ err = 1;
+
+unlock:
+ mutex_unlock(&private->data_mutex);
+ return err;
+}
+
+static const struct snd_kcontrol_new scarlett2_talkback_map_ctl = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "",
+ .info = snd_ctl_boolean_mono_info,
+ .get = scarlett2_talkback_map_ctl_get,
+ .put = scarlett2_talkback_map_ctl_put,
+};
+
+static int scarlett2_add_talkback_ctls(
+ struct usb_mixer_interface *mixer)
+{
+ struct scarlett2_data *private = mixer->private_data;
+ const struct scarlett2_device_info *info = private->info;
+ const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count;
+ int num_mixes = port_count[SCARLETT2_PORT_TYPE_MIX][SCARLETT2_PORT_IN];
+ int err, i;
+ char s[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
+
+ if (!info->has_talkback)
+ return 0;
+
+ err = scarlett2_add_new_ctl(
+ mixer, &scarlett2_talkback_enum_ctl,
+ 0, 1, "Talkback Playback Enum",
+ &private->talkback_ctl);
+ if (err < 0)
+ return err;
+
+ for (i = 0; i < num_mixes; i++) {
+ snprintf(s, sizeof(s),
+ "Talkback Mix %c Playback Switch", i + 'A');
+ err = scarlett2_add_new_ctl(mixer, &scarlett2_talkback_map_ctl,
+ i, 1, s, NULL);
+ if (err < 0)
+ return err;
+ }
+
+ return 0;
+}
+
+/*** Dim/Mute Controls ***/
+
+static int scarlett2_dim_mute_ctl_get(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct usb_mixer_interface *mixer = elem->head.mixer;
+ struct scarlett2_data *private = mixer->private_data;
+
+ mutex_lock(&private->data_mutex);
+ if (private->vol_updated)
+ scarlett2_update_volumes(mixer);
+ mutex_unlock(&private->data_mutex);
+
+ ucontrol->value.integer.value[0] = private->dim_mute[elem->control];
+ return 0;
+}
+
+static int scarlett2_dim_mute_ctl_put(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct usb_mixer_interface *mixer = elem->head.mixer;
+ struct scarlett2_data *private = mixer->private_data;
+ const struct scarlett2_device_info *info = private->info;
+ const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count;
+ int num_line_out =
+ port_count[SCARLETT2_PORT_TYPE_ANALOGUE][SCARLETT2_PORT_OUT];
+
+ int index = elem->control;
+ int oval, val, err = 0, i;
+
+ mutex_lock(&private->data_mutex);
+
+ oval = private->dim_mute[index];
+ val = !!ucontrol->value.integer.value[0];
+
+ if (oval == val)
+ goto unlock;
+
+ private->dim_mute[index] = val;
+
+ /* Send switch change to the device */
+ err = scarlett2_usb_set_config(mixer, SCARLETT2_CONFIG_DIM_MUTE,
+ index, val);
+ if (err == 0)
+ err = 1;
+
+ if (index == SCARLETT2_BUTTON_MUTE)
+ for (i = 0; i < num_line_out; i++) {
+ int line_index = line_out_remap(private, i);
+
+ if (private->vol_sw_hw_switch[line_index]) {
+ private->mute_switch[line_index] = val;
+ snd_ctl_notify(mixer->chip->card,
+ SNDRV_CTL_EVENT_MASK_VALUE,
+ &private->mute_ctls[i]->id);
+ }
+ }
+
+unlock:
+ mutex_unlock(&private->data_mutex);
+ return err;
+}
+
+static const struct snd_kcontrol_new scarlett2_dim_mute_ctl = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "",
+ .info = snd_ctl_boolean_mono_info,
+ .get = scarlett2_dim_mute_ctl_get,
+ .put = scarlett2_dim_mute_ctl_put
+};
+
+/*** Create the analogue output controls ***/
+
+static int scarlett2_add_line_out_ctls(struct usb_mixer_interface *mixer)
+{
+ struct scarlett2_data *private = mixer->private_data;
+ const struct scarlett2_device_info *info = private->info;
+ const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count;
+ int num_line_out =
+ port_count[SCARLETT2_PORT_TYPE_ANALOGUE][SCARLETT2_PORT_OUT];
+ int err, i;
+ char s[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
+
+ /* Add R/O HW volume control */
+ if (info->line_out_hw_vol) {
+ snprintf(s, sizeof(s), "Master HW Playback Volume");
+ err = scarlett2_add_new_ctl(mixer,
+ &scarlett2_master_volume_ctl,
+ 0, 1, s, &private->master_vol_ctl);
+ if (err < 0)
+ return err;
+ }
+
+ /* Add volume controls */
+ for (i = 0; i < num_line_out; i++) {
+ int index = line_out_remap(private, i);
+
+ /* Fader */
+ if (info->line_out_descrs[i])
+ snprintf(s, sizeof(s),
+ "Line %02d (%s) Playback Volume",
+ i + 1, info->line_out_descrs[i]);
+ else
+ snprintf(s, sizeof(s),
+ "Line %02d Playback Volume",
+ i + 1);
+ err = scarlett2_add_new_ctl(mixer,
+ &scarlett2_line_out_volume_ctl,
+ i, 1, s, &private->vol_ctls[i]);
+ if (err < 0)
+ return err;
+
+ /* Mute Switch */
+ snprintf(s, sizeof(s),
+ "Line %02d Mute Playback Switch",
+ i + 1);
+ err = scarlett2_add_new_ctl(mixer,
+ &scarlett2_mute_ctl,
+ i, 1, s,
+ &private->mute_ctls[i]);
+ if (err < 0)
+ return err;
+
+ /* Make the fader and mute controls read-only if the
+ * SW/HW switch is set to HW
+ */
+ if (private->vol_sw_hw_switch[index])
+ scarlett2_vol_ctl_set_writable(mixer, i, 0);
+
+ /* SW/HW Switch */
+ if (info->line_out_hw_vol) {
+ snprintf(s, sizeof(s),
+ "Line Out %02d Volume Control Playback Enum",
+ i + 1);
+ err = scarlett2_add_new_ctl(mixer,
+ &scarlett2_sw_hw_enum_ctl,
+ i, 1, s,
+ &private->sw_hw_ctls[i]);
+ if (err < 0)
+ return err;
+
+ /* Make the switch read-only if the line is
+ * involved in speaker switching
+ */
+ if (private->speaker_switching_switch && i < 4)
+ scarlett2_sw_hw_ctl_ro(private, i);
+ }
+ }
+
+ /* Add dim/mute controls */
+ if (info->line_out_hw_vol)
+ for (i = 0; i < SCARLETT2_DIM_MUTE_COUNT; i++) {
+ err = scarlett2_add_new_ctl(
+ mixer, &scarlett2_dim_mute_ctl,
+ i, 1, scarlett2_dim_mute_names[i],
+ &private->dim_mute_ctls[i]);
+ if (err < 0)
+ return err;
+ }
+
+ return 0;
+}
+
+/*** Create the analogue input controls ***/
+
+static int scarlett2_add_line_in_ctls(struct usb_mixer_interface *mixer)
+{
+ struct scarlett2_data *private = mixer->private_data;
+ const struct scarlett2_device_info *info = private->info;
+ int err, i;
+ char s[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
+ const char *fmt = "Line In %d %s Capture %s";
+ const char *fmt2 = "Line In %d-%d %s Capture %s";
+
+ /* Add input level (line/inst) controls */
+ for (i = 0; i < info->level_input_count; i++) {
+ snprintf(s, sizeof(s), fmt, i + 1 + info->level_input_first,
+ "Level", "Enum");
+ err = scarlett2_add_new_ctl(mixer, &scarlett2_level_enum_ctl,
+ i, 1, s, &private->level_ctls[i]);
+ if (err < 0)
+ return err;
+ }
+
+ /* Add input pad controls */
+ for (i = 0; i < info->pad_input_count; i++) {
+ snprintf(s, sizeof(s), fmt, i + 1, "Pad", "Switch");
+ err = scarlett2_add_new_ctl(mixer, &scarlett2_pad_ctl,
+ i, 1, s, &private->pad_ctls[i]);
+ if (err < 0)
+ return err;
+ }
+
+ /* Add input air controls */
+ for (i = 0; i < info->air_input_count; i++) {
+ snprintf(s, sizeof(s), fmt, i + 1, "Air", "Switch");
+ err = scarlett2_add_new_ctl(mixer, &scarlett2_air_ctl,
+ i, 1, s, &private->air_ctls[i]);
+ if (err < 0)
+ return err;
+ }
+
+ /* Add input phantom controls */
+ if (info->inputs_per_phantom == 1) {
+ for (i = 0; i < info->phantom_count; i++) {
+ scnprintf(s, sizeof(s), fmt, i + 1,
+ "Phantom Power", "Switch");
+ err = scarlett2_add_new_ctl(
+ mixer, &scarlett2_phantom_ctl,
+ i, 1, s, &private->phantom_ctls[i]);
+ if (err < 0)
+ return err;
+ }
+ } else if (info->inputs_per_phantom > 1) {
+ for (i = 0; i < info->phantom_count; i++) {
+ int from = i * info->inputs_per_phantom + 1;
+ int to = (i + 1) * info->inputs_per_phantom;
+
+ scnprintf(s, sizeof(s), fmt2, from, to,
+ "Phantom Power", "Switch");
+ err = scarlett2_add_new_ctl(
+ mixer, &scarlett2_phantom_ctl,
+ i, 1, s, &private->phantom_ctls[i]);
+ if (err < 0)
+ return err;
+ }
+ }
+ if (info->phantom_count) {
+ err = scarlett2_add_new_ctl(
+ mixer, &scarlett2_phantom_persistence_ctl, 0, 1,
+ "Phantom Power Persistence Capture Switch", NULL);
+ if (err < 0)
+ return err;
+ }
+
+ return 0;
+}
+
+/*** Mixer Volume Controls ***/
+
+static int scarlett2_mixer_ctl_info(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_info *uinfo)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = elem->channels;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = SCARLETT2_MIXER_MAX_VALUE;
+ uinfo->value.integer.step = 1;
+ return 0;
+}
+
+static int scarlett2_mixer_ctl_get(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct scarlett2_data *private = elem->head.mixer->private_data;
+
+ ucontrol->value.integer.value[0] = private->mix[elem->control];
+ return 0;
+}
+
+static int scarlett2_mixer_ctl_put(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct usb_mixer_interface *mixer = elem->head.mixer;
+ struct scarlett2_data *private = mixer->private_data;
+ const struct scarlett2_device_info *info = private->info;
+ const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count;
+ int oval, val, num_mixer_in, mix_num, err = 0;
+ int index = elem->control;
+
+ mutex_lock(&private->data_mutex);
+
+ oval = private->mix[index];
+ val = ucontrol->value.integer.value[0];
+ num_mixer_in = port_count[SCARLETT2_PORT_TYPE_MIX][SCARLETT2_PORT_OUT];
+ mix_num = index / num_mixer_in;
+
+ if (oval == val)
+ goto unlock;
+
+ private->mix[index] = val;
+ err = scarlett2_usb_set_mix(mixer, mix_num);
+ if (err == 0)
+ err = 1;
+
+unlock:
+ mutex_unlock(&private->data_mutex);
+ return err;
+}
+
+static const DECLARE_TLV_DB_MINMAX(
+ db_scale_scarlett2_mixer,
+ SCARLETT2_MIXER_MIN_DB * 100,
+ SCARLETT2_MIXER_MAX_DB * 100
+);
+
+static const struct snd_kcontrol_new scarlett2_mixer_ctl = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
+ SNDRV_CTL_ELEM_ACCESS_TLV_READ,
+ .name = "",
+ .info = scarlett2_mixer_ctl_info,
+ .get = scarlett2_mixer_ctl_get,
+ .put = scarlett2_mixer_ctl_put,
+ .private_value = SCARLETT2_MIXER_MAX_DB, /* max value */
+ .tlv = { .p = db_scale_scarlett2_mixer }
+};
+
+static int scarlett2_add_mixer_ctls(struct usb_mixer_interface *mixer)
+{
+ struct scarlett2_data *private = mixer->private_data;
+ const struct scarlett2_device_info *info = private->info;
+ const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count;
+ int err, i, j;
+ int index;
+ char s[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
+
+ int num_inputs =
+ port_count[SCARLETT2_PORT_TYPE_MIX][SCARLETT2_PORT_OUT];
+ int num_outputs =
+ port_count[SCARLETT2_PORT_TYPE_MIX][SCARLETT2_PORT_IN];
+
+ for (i = 0, index = 0; i < num_outputs; i++)
+ for (j = 0; j < num_inputs; j++, index++) {
+ snprintf(s, sizeof(s),
+ "Mix %c Input %02d Playback Volume",
+ 'A' + i, j + 1);
+ err = scarlett2_add_new_ctl(mixer, &scarlett2_mixer_ctl,
+ index, 1, s, NULL);
+ if (err < 0)
+ return err;
+ }
+
+ return 0;
+}
+
+/*** Mux Source Selection Controls ***/
+
+static int scarlett2_mux_src_enum_ctl_info(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_info *uinfo)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct scarlett2_data *private = elem->head.mixer->private_data;
+ const struct scarlett2_device_info *info = private->info;
+ const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count;
+ unsigned int item = uinfo->value.enumerated.item;
+ int items = private->num_mux_srcs;
+ int port_type;
+
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+ uinfo->count = elem->channels;
+ uinfo->value.enumerated.items = items;
+
+ if (item >= items)
+ item = uinfo->value.enumerated.item = items - 1;
+
+ for (port_type = 0;
+ port_type < SCARLETT2_PORT_TYPE_COUNT;
+ port_type++) {
+ if (item < port_count[port_type][SCARLETT2_PORT_IN]) {
+ const struct scarlett2_port *port =
+ &scarlett2_ports[port_type];
+
+ sprintf(uinfo->value.enumerated.name,
+ port->src_descr, item + port->src_num_offset);
+ return 0;
+ }
+ item -= port_count[port_type][SCARLETT2_PORT_IN];
+ }
+
+ return -EINVAL;
+}
+
+static int scarlett2_mux_src_enum_ctl_get(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct usb_mixer_interface *mixer = elem->head.mixer;
+ struct scarlett2_data *private = mixer->private_data;
+ int index = line_out_remap(private, elem->control);
+
+ mutex_lock(&private->data_mutex);
+ if (private->mux_updated)
+ scarlett2_usb_get_mux(mixer);
+ ucontrol->value.enumerated.item[0] = private->mux[index];
+ mutex_unlock(&private->data_mutex);
+
+ return 0;
+}
+
+static int scarlett2_mux_src_enum_ctl_put(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct usb_mixer_interface *mixer = elem->head.mixer;
+ struct scarlett2_data *private = mixer->private_data;
+ int index = line_out_remap(private, elem->control);
+ int oval, val, err = 0;
+
+ mutex_lock(&private->data_mutex);
+
+ oval = private->mux[index];
+ val = min(ucontrol->value.enumerated.item[0],
+ private->num_mux_srcs - 1U);
+
+ if (oval == val)
+ goto unlock;
+
+ private->mux[index] = val;
+ err = scarlett2_usb_set_mux(mixer);
+ if (err == 0)
+ err = 1;
+
+unlock:
+ mutex_unlock(&private->data_mutex);
+ return err;
+}
+
+static const struct snd_kcontrol_new scarlett2_mux_src_enum_ctl = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "",
+ .info = scarlett2_mux_src_enum_ctl_info,
+ .get = scarlett2_mux_src_enum_ctl_get,
+ .put = scarlett2_mux_src_enum_ctl_put,
+};
+
+static int scarlett2_add_mux_enums(struct usb_mixer_interface *mixer)
+{
+ struct scarlett2_data *private = mixer->private_data;
+ const struct scarlett2_device_info *info = private->info;
+ const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count;
+ int port_type, channel, i;
+
+ for (i = 0, port_type = 0;
+ port_type < SCARLETT2_PORT_TYPE_COUNT;
+ port_type++) {
+ for (channel = 0;
+ channel < port_count[port_type][SCARLETT2_PORT_OUT];
+ channel++, i++) {
+ int err;
+ char s[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
+ const char *const descr =
+ scarlett2_ports[port_type].dst_descr;
+
+ snprintf(s, sizeof(s) - 5, descr, channel + 1);
+ strcat(s, " Enum");
+
+ err = scarlett2_add_new_ctl(mixer,
+ &scarlett2_mux_src_enum_ctl,
+ i, 1, s,
+ &private->mux_ctls[i]);
+ if (err < 0)
+ return err;
+ }
+ }
+
+ return 0;
+}
+
+/*** Meter Controls ***/
+
+static int scarlett2_meter_ctl_info(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_info *uinfo)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = elem->channels;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = 4095;
+ uinfo->value.integer.step = 1;
+ return 0;
+}
+
+static int scarlett2_meter_ctl_get(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct scarlett2_data *private = elem->head.mixer->private_data;
+ u8 *meter_level_map = private->meter_level_map;
+ u16 meter_levels[SCARLETT2_MAX_METERS];
+ int i, err;
+
+ err = scarlett2_usb_get_meter_levels(elem->head.mixer, elem->channels,
+ meter_levels);
+ if (err < 0)
+ return err;
+
+ /* copy & translate from meter_levels[] using meter_level_map[] */
+ for (i = 0; i < elem->channels; i++) {
+ int idx = meter_level_map[i];
+ int value;
+
+ if (idx == 255)
+ value = 0;
+ else
+ value = meter_levels[idx];
+
+ ucontrol->value.integer.value[i] = value;
+ }
+
+ return 0;
+}
+
+static const struct snd_kcontrol_new scarlett2_meter_ctl = {
+ .iface = SNDRV_CTL_ELEM_IFACE_PCM,
+ .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+ .name = "",
+ .info = scarlett2_meter_ctl_info,
+ .get = scarlett2_meter_ctl_get
+};
+
+static int scarlett2_add_meter_ctl(struct usb_mixer_interface *mixer)
+{
+ struct scarlett2_data *private = mixer->private_data;
+
+ /* devices without a mixer also don't support reporting levels */
+ if (private->info->config_set == SCARLETT2_CONFIG_SET_GEN_3A)
+ return 0;
+
+ return scarlett2_add_new_ctl(mixer, &scarlett2_meter_ctl,
+ 0, private->num_mux_dsts,
+ "Level Meter", NULL);
+}
+
+/*** MSD Controls ***/
+
+static int scarlett2_msd_ctl_get(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct scarlett2_data *private = elem->head.mixer->private_data;
+
+ ucontrol->value.integer.value[0] = private->msd_switch;
+ return 0;
+}
+
+static int scarlett2_msd_ctl_put(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct usb_mixer_interface *mixer = elem->head.mixer;
+ struct scarlett2_data *private = mixer->private_data;
+
+ int oval, val, err = 0;
+
+ mutex_lock(&private->data_mutex);
+
+ oval = private->msd_switch;
+ val = !!ucontrol->value.integer.value[0];
+
+ if (oval == val)
+ goto unlock;
+
+ private->msd_switch = val;
+
+ /* Send switch change to the device */
+ err = scarlett2_usb_set_config(mixer, SCARLETT2_CONFIG_MSD_SWITCH,
+ 0, val);
+ if (err == 0)
+ err = 1;
+
+unlock:
+ mutex_unlock(&private->data_mutex);
+ return err;
+}
+
+static const struct snd_kcontrol_new scarlett2_msd_ctl = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "",
+ .info = snd_ctl_boolean_mono_info,
+ .get = scarlett2_msd_ctl_get,
+ .put = scarlett2_msd_ctl_put,
+};
+
+static int scarlett2_add_msd_ctl(struct usb_mixer_interface *mixer)
+{
+ struct scarlett2_data *private = mixer->private_data;
+ const struct scarlett2_device_info *info = private->info;
+
+ if (!info->has_msd_mode)
+ return 0;
+
+ /* If MSD mode is off, hide the switch by default */
+ if (!private->msd_switch && !(mixer->chip->setup & SCARLETT2_MSD_ENABLE))
+ return 0;
+
+ /* Add MSD control */
+ return scarlett2_add_new_ctl(mixer, &scarlett2_msd_ctl,
+ 0, 1, "MSD Mode Switch", NULL);
+}
+
+/*** Standalone Control ***/
+
+static int scarlett2_standalone_ctl_get(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct scarlett2_data *private = elem->head.mixer->private_data;
+
+ ucontrol->value.integer.value[0] = private->standalone_switch;
+ return 0;
+}
+
+static int scarlett2_standalone_ctl_put(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct usb_mixer_elem_info *elem = kctl->private_data;
+ struct usb_mixer_interface *mixer = elem->head.mixer;
+ struct scarlett2_data *private = mixer->private_data;
+
+ int oval, val, err = 0;
+
+ mutex_lock(&private->data_mutex);
+
+ oval = private->standalone_switch;
+ val = !!ucontrol->value.integer.value[0];
+
+ if (oval == val)
+ goto unlock;
+
+ private->standalone_switch = val;
+
+ /* Send switch change to the device */
+ err = scarlett2_usb_set_config(mixer,
+ SCARLETT2_CONFIG_STANDALONE_SWITCH,
+ 0, val);
+ if (err == 0)
+ err = 1;
+
+unlock:
+ mutex_unlock(&private->data_mutex);
+ return err;
+}
+
+static const struct snd_kcontrol_new scarlett2_standalone_ctl = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "",
+ .info = snd_ctl_boolean_mono_info,
+ .get = scarlett2_standalone_ctl_get,
+ .put = scarlett2_standalone_ctl_put,
+};
+
+static int scarlett2_add_standalone_ctl(struct usb_mixer_interface *mixer)
+{
+ struct scarlett2_data *private = mixer->private_data;
+
+ if (private->info->config_set == SCARLETT2_CONFIG_SET_GEN_3A)
+ return 0;
+
+ /* Add standalone control */
+ return scarlett2_add_new_ctl(mixer, &scarlett2_standalone_ctl,
+ 0, 1, "Standalone Switch", NULL);
+}
+
+/*** Cleanup/Suspend Callbacks ***/
+
+static void scarlett2_private_free(struct usb_mixer_interface *mixer)
+{
+ struct scarlett2_data *private = mixer->private_data;
+
+ cancel_delayed_work_sync(&private->work);
+ kfree(private);
+ mixer->private_data = NULL;
+}
+
+static void scarlett2_private_suspend(struct usb_mixer_interface *mixer)
+{
+ struct scarlett2_data *private = mixer->private_data;
+
+ if (cancel_delayed_work_sync(&private->work))
+ scarlett2_config_save(private->mixer);
+}
+
+/*** Initialisation ***/
+
+static void scarlett2_count_mux_io(struct scarlett2_data *private)
+{
+ const struct scarlett2_device_info *info = private->info;
+ const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count;
+ int port_type, srcs = 0, dsts = 0;
+
+ for (port_type = 0;
+ port_type < SCARLETT2_PORT_TYPE_COUNT;
+ port_type++) {
+ srcs += port_count[port_type][SCARLETT2_PORT_IN];
+ dsts += port_count[port_type][SCARLETT2_PORT_OUT];
+ }
+
+ private->num_mux_srcs = srcs;
+ private->num_mux_dsts = dsts;
+}
+
+/* Look through the interface descriptors for the Focusrite Control
+ * interface (bInterfaceClass = 255 Vendor Specific Class) and set
+ * bInterfaceNumber, bEndpointAddress, wMaxPacketSize, and bInterval
+ * in private
+ */
+static int scarlett2_find_fc_interface(struct usb_device *dev,
+ struct scarlett2_data *private)
+{
+ struct usb_host_config *config = dev->actconfig;
+ int i;
+
+ for (i = 0; i < config->desc.bNumInterfaces; i++) {
+ struct usb_interface *intf = config->interface[i];
+ struct usb_interface_descriptor *desc =
+ &intf->altsetting[0].desc;
+ struct usb_endpoint_descriptor *epd;
+
+ if (desc->bInterfaceClass != 255)
+ continue;
+
+ epd = get_endpoint(intf->altsetting, 0);
+ private->bInterfaceNumber = desc->bInterfaceNumber;
+ private->bEndpointAddress = epd->bEndpointAddress &
+ USB_ENDPOINT_NUMBER_MASK;
+ private->wMaxPacketSize = le16_to_cpu(epd->wMaxPacketSize);
+ private->bInterval = epd->bInterval;
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
+/* Initialise private data */
+static int scarlett2_init_private(struct usb_mixer_interface *mixer,
+ const struct scarlett2_device_entry *entry)
+{
+ struct scarlett2_data *private =
+ kzalloc(sizeof(struct scarlett2_data), GFP_KERNEL);
+
+ if (!private)
+ return -ENOMEM;
+
+ mutex_init(&private->usb_mutex);
+ mutex_init(&private->data_mutex);
+ INIT_DELAYED_WORK(&private->work, scarlett2_config_save_work);
+
+ mixer->private_data = private;
+ mixer->private_free = scarlett2_private_free;
+ mixer->private_suspend = scarlett2_private_suspend;
+
+ private->info = entry->info;
+ private->series_name = entry->series_name;
+ scarlett2_count_mux_io(private);
+ private->scarlett2_seq = 0;
+ private->mixer = mixer;
+
+ return scarlett2_find_fc_interface(mixer->chip->dev, private);
+}
+
+/* Cargo cult proprietary initialisation sequence */
+static int scarlett2_usb_init(struct usb_mixer_interface *mixer)
+{
+ struct usb_device *dev = mixer->chip->dev;
+ struct scarlett2_data *private = mixer->private_data;
+ u8 step0_buf[24];
+ u8 step2_buf[84];
+ int err;
+
+ if (usb_pipe_type_check(dev, usb_sndctrlpipe(dev, 0)))
+ return -EINVAL;
+
+ /* step 0 */
+ err = scarlett2_usb_rx(dev, private->bInterfaceNumber,
+ SCARLETT2_USB_CMD_INIT,
+ step0_buf, sizeof(step0_buf));
+ if (err < 0)
+ return err;
+
+ /* step 1 */
+ private->scarlett2_seq = 1;
+ err = scarlett2_usb(mixer, SCARLETT2_USB_INIT_1, NULL, 0, NULL, 0);
+ if (err < 0)
+ return err;
+
+ /* step 2 */
+ private->scarlett2_seq = 1;
+ err = scarlett2_usb(mixer, SCARLETT2_USB_INIT_2,
+ NULL, 0,
+ step2_buf, sizeof(step2_buf));
+ if (err < 0)
+ return err;
+
+ /* extract 4-byte firmware version from step2_buf[8] */
+ private->firmware_version = le32_to_cpu(*(__le32 *)(step2_buf + 8));
+ usb_audio_info(mixer->chip,
+ "Firmware version %d\n",
+ private->firmware_version);
+
+ return 0;
+}
+
+/* Read configuration from the interface on start */
+static int scarlett2_read_configs(struct usb_mixer_interface *mixer)
+{
+ struct scarlett2_data *private = mixer->private_data;
+ const struct scarlett2_device_info *info = private->info;
+ const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count;
+ int num_line_out =
+ port_count[SCARLETT2_PORT_TYPE_ANALOGUE][SCARLETT2_PORT_OUT];
+ int num_mixer_out =
+ port_count[SCARLETT2_PORT_TYPE_MIX][SCARLETT2_PORT_IN];
+ struct scarlett2_usb_volume_status volume_status;
+ int err, i;
+
+ if (info->has_msd_mode) {
+ err = scarlett2_usb_get_config(
+ mixer, SCARLETT2_CONFIG_MSD_SWITCH,
+ 1, &private->msd_switch);
+ if (err < 0)
+ return err;
+
+ /* no other controls are created if MSD mode is on */
+ if (private->msd_switch)
+ return 0;
+ }
+
+ err = scarlett2_update_input_other(mixer);
+ if (err < 0)
+ return err;
+
+ err = scarlett2_update_monitor_other(mixer);
+ if (err < 0)
+ return err;
+
+ /* the rest of the configuration is for devices with a mixer */
+ if (info->config_set == SCARLETT2_CONFIG_SET_GEN_3A)
+ return 0;
+
+ err = scarlett2_usb_get_config(
+ mixer, SCARLETT2_CONFIG_STANDALONE_SWITCH,
+ 1, &private->standalone_switch);
+ if (err < 0)
+ return err;
+
+ err = scarlett2_update_sync(mixer);
+ if (err < 0)
+ return err;
+
+ err = scarlett2_usb_get_volume_status(mixer, &volume_status);
+ if (err < 0)
+ return err;
+
+ if (info->line_out_hw_vol)
+ for (i = 0; i < SCARLETT2_DIM_MUTE_COUNT; i++)
+ private->dim_mute[i] = !!volume_status.dim_mute[i];
+
+ private->master_vol = clamp(
+ volume_status.master_vol + SCARLETT2_VOLUME_BIAS,
+ 0, SCARLETT2_VOLUME_BIAS);
+
+ for (i = 0; i < num_line_out; i++) {
+ int volume, mute;
+
+ private->vol_sw_hw_switch[i] =
+ info->line_out_hw_vol
+ && volume_status.sw_hw_switch[i];
+
+ volume = private->vol_sw_hw_switch[i]
+ ? volume_status.master_vol
+ : volume_status.sw_vol[i];
+ volume = clamp(volume + SCARLETT2_VOLUME_BIAS,
+ 0, SCARLETT2_VOLUME_BIAS);
+ private->vol[i] = volume;
+
+ mute = private->vol_sw_hw_switch[i]
+ ? private->dim_mute[SCARLETT2_BUTTON_MUTE]
+ : volume_status.mute_switch[i];
+ private->mute_switch[i] = mute;
+ }
+
+ for (i = 0; i < num_mixer_out; i++) {
+ err = scarlett2_usb_get_mix(mixer, i);
+ if (err < 0)
+ return err;
+ }
+
+ return scarlett2_usb_get_mux(mixer);
+}
+
+/* Notify on sync change */
+static void scarlett2_notify_sync(
+ struct usb_mixer_interface *mixer)
+{
+ struct scarlett2_data *private = mixer->private_data;
+
+ private->sync_updated = 1;
+
+ snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
+ &private->sync_ctl->id);
+}
+
+/* Notify on monitor change */
+static void scarlett2_notify_monitor(
+ struct usb_mixer_interface *mixer)
+{
+ struct snd_card *card = mixer->chip->card;
+ struct scarlett2_data *private = mixer->private_data;
+ const struct scarlett2_device_info *info = private->info;
+ const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count;
+ int num_line_out =
+ port_count[SCARLETT2_PORT_TYPE_ANALOGUE][SCARLETT2_PORT_OUT];
+ int i;
+
+ /* if line_out_hw_vol is 0, there are no controls to update */
+ if (!info->line_out_hw_vol)
+ return;
+
+ private->vol_updated = 1;
+
+ snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
+ &private->master_vol_ctl->id);
+
+ for (i = 0; i < num_line_out; i++)
+ if (private->vol_sw_hw_switch[line_out_remap(private, i)])
+ snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
+ &private->vol_ctls[i]->id);
+}
+
+/* Notify on dim/mute change */
+static void scarlett2_notify_dim_mute(
+ struct usb_mixer_interface *mixer)
+{
+ struct snd_card *card = mixer->chip->card;
+ struct scarlett2_data *private = mixer->private_data;
+ const struct scarlett2_device_info *info = private->info;
+ const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count;
+ int num_line_out =
+ port_count[SCARLETT2_PORT_TYPE_ANALOGUE][SCARLETT2_PORT_OUT];
+ int i;
+
+ private->vol_updated = 1;
+
+ if (!info->line_out_hw_vol)
+ return;
+
+ for (i = 0; i < SCARLETT2_DIM_MUTE_COUNT; i++)
+ snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
+ &private->dim_mute_ctls[i]->id);
+
+ for (i = 0; i < num_line_out; i++)
+ if (private->vol_sw_hw_switch[line_out_remap(private, i)])
+ snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
+ &private->mute_ctls[i]->id);
+}
+
+/* Notify on "input other" change (level/pad/air) */
+static void scarlett2_notify_input_other(
+ struct usb_mixer_interface *mixer)
+{
+ struct snd_card *card = mixer->chip->card;
+ struct scarlett2_data *private = mixer->private_data;
+ const struct scarlett2_device_info *info = private->info;
+ int i;
+
+ private->input_other_updated = 1;
+
+ for (i = 0; i < info->level_input_count; i++)
+ snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
+ &private->level_ctls[i]->id);
+ for (i = 0; i < info->pad_input_count; i++)
+ snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
+ &private->pad_ctls[i]->id);
+ for (i = 0; i < info->air_input_count; i++)
+ snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
+ &private->air_ctls[i]->id);
+ for (i = 0; i < info->phantom_count; i++)
+ snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
+ &private->phantom_ctls[i]->id);
+}
+
+/* Notify on "monitor other" change (direct monitor, speaker
+ * switching, talkback)
+ */
+static void scarlett2_notify_monitor_other(
+ struct usb_mixer_interface *mixer)
+{
+ struct snd_card *card = mixer->chip->card;
+ struct scarlett2_data *private = mixer->private_data;
+ const struct scarlett2_device_info *info = private->info;
+
+ private->monitor_other_updated = 1;
+
+ if (info->direct_monitor) {
+ snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
+ &private->direct_monitor_ctl->id);
+ return;
+ }
+
+ if (info->has_speaker_switching)
+ snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
+ &private->speaker_switching_ctl->id);
+
+ if (info->has_talkback)
+ snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
+ &private->talkback_ctl->id);
+
+ /* if speaker switching was recently enabled or disabled,
+ * invalidate the dim/mute and mux enum controls
+ */
+ if (private->speaker_switching_switched) {
+ int i;
+
+ scarlett2_notify_dim_mute(mixer);
+
+ private->speaker_switching_switched = 0;
+ private->mux_updated = 1;
+
+ for (i = 0; i < private->num_mux_dsts; i++)
+ snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
+ &private->mux_ctls[i]->id);
+ }
+}
+
+/* Interrupt callback */
+static void scarlett2_notify(struct urb *urb)
+{
+ struct usb_mixer_interface *mixer = urb->context;
+ int len = urb->actual_length;
+ int ustatus = urb->status;
+ u32 data;
+
+ if (ustatus != 0 || len != 8)
+ goto requeue;
+
+ data = le32_to_cpu(*(__le32 *)urb->transfer_buffer);
+ if (data & SCARLETT2_USB_NOTIFY_SYNC)
+ scarlett2_notify_sync(mixer);
+ if (data & SCARLETT2_USB_NOTIFY_MONITOR)
+ scarlett2_notify_monitor(mixer);
+ if (data & SCARLETT2_USB_NOTIFY_DIM_MUTE)
+ scarlett2_notify_dim_mute(mixer);
+ if (data & SCARLETT2_USB_NOTIFY_INPUT_OTHER)
+ scarlett2_notify_input_other(mixer);
+ if (data & SCARLETT2_USB_NOTIFY_MONITOR_OTHER)
+ scarlett2_notify_monitor_other(mixer);
+
+requeue:
+ if (ustatus != -ENOENT &&
+ ustatus != -ECONNRESET &&
+ ustatus != -ESHUTDOWN) {
+ urb->dev = mixer->chip->dev;
+ usb_submit_urb(urb, GFP_ATOMIC);
+ }
+}
+
+static int scarlett2_init_notify(struct usb_mixer_interface *mixer)
+{
+ struct usb_device *dev = mixer->chip->dev;
+ struct scarlett2_data *private = mixer->private_data;
+ unsigned int pipe = usb_rcvintpipe(dev, private->bEndpointAddress);
+ void *transfer_buffer;
+
+ if (mixer->urb) {
+ usb_audio_err(mixer->chip,
+ "%s: mixer urb already in use!\n", __func__);
+ return 0;
+ }
+
+ if (usb_pipe_type_check(dev, pipe))
+ return -EINVAL;
+
+ mixer->urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!mixer->urb)
+ return -ENOMEM;
+
+ transfer_buffer = kmalloc(private->wMaxPacketSize, GFP_KERNEL);
+ if (!transfer_buffer)
+ return -ENOMEM;
+
+ usb_fill_int_urb(mixer->urb, dev, pipe,
+ transfer_buffer, private->wMaxPacketSize,
+ scarlett2_notify, mixer, private->bInterval);
+
+ return usb_submit_urb(mixer->urb, GFP_KERNEL);
+}
+
+static const struct scarlett2_device_entry *get_scarlett2_device_entry(
+ struct usb_mixer_interface *mixer)
+{
+ const struct scarlett2_device_entry *entry = scarlett2_devices;
+
+ /* Find entry in scarlett2_devices */
+ while (entry->usb_id && entry->usb_id != mixer->chip->usb_id)
+ entry++;
+ if (!entry->usb_id)
+ return NULL;
+
+ return entry;
+}
+
+static int snd_scarlett2_controls_create(
+ struct usb_mixer_interface *mixer,
+ const struct scarlett2_device_entry *entry)
+{
+ int err;
+
+ /* Initialise private data */
+ err = scarlett2_init_private(mixer, entry);
+ if (err < 0)
+ return err;
+
+ /* Send proprietary USB initialisation sequence */
+ err = scarlett2_usb_init(mixer);
+ if (err < 0)
+ return err;
+
+ /* Add firmware version control */
+ err = scarlett2_add_firmware_version_ctl(mixer);
+ if (err < 0)
+ return err;
+
+ /* Read volume levels and controls from the interface */
+ err = scarlett2_read_configs(mixer);
+ if (err < 0)
+ return err;
+
+ /* Create the MSD control */
+ err = scarlett2_add_msd_ctl(mixer);
+ if (err < 0)
+ return err;
+
+ /* If MSD mode is enabled, don't create any other controls */
+ if (((struct scarlett2_data *)mixer->private_data)->msd_switch)
+ return 0;
+
+ /* Create the analogue output controls */
+ err = scarlett2_add_line_out_ctls(mixer);
+ if (err < 0)
+ return err;
+
+ /* Create the analogue input controls */
+ err = scarlett2_add_line_in_ctls(mixer);
+ if (err < 0)
+ return err;
+
+ /* Create the input, output, and mixer mux input selections */
+ err = scarlett2_add_mux_enums(mixer);
+ if (err < 0)
+ return err;
+
+ /* Create the matrix mixer controls */
+ err = scarlett2_add_mixer_ctls(mixer);
+ if (err < 0)
+ return err;
+
+ /* Create the level meter controls */
+ err = scarlett2_add_meter_ctl(mixer);
+ if (err < 0)
+ return err;
+
+ /* Create the sync control */
+ err = scarlett2_add_sync_ctl(mixer);
+ if (err < 0)
+ return err;
+
+ /* Create the direct monitor control */
+ err = scarlett2_add_direct_monitor_ctl(mixer);
+ if (err < 0)
+ return err;
+
+ /* Create the speaker switching control */
+ err = scarlett2_add_speaker_switch_ctl(mixer);
+ if (err < 0)
+ return err;
+
+ /* Create the talkback controls */
+ err = scarlett2_add_talkback_ctls(mixer);
+ if (err < 0)
+ return err;
+
+ /* Create the standalone control */
+ err = scarlett2_add_standalone_ctl(mixer);
+ if (err < 0)
+ return err;
+
+ /* Set up the interrupt polling */
+ err = scarlett2_init_notify(mixer);
+ if (err < 0)
+ return err;
+
+ return 0;
+}
+
+int snd_scarlett2_init(struct usb_mixer_interface *mixer)
+{
+ struct snd_usb_audio *chip = mixer->chip;
+ const struct scarlett2_device_entry *entry;
+ int err;
+
+ /* only use UAC_VERSION_2 */
+ if (!mixer->protocol)
+ return 0;
+
+ /* find entry in scarlett2_devices */
+ entry = get_scarlett2_device_entry(mixer);
+ if (!entry) {
+ usb_audio_err(mixer->chip,
+ "%s: missing device entry for %04x:%04x\n",
+ __func__,
+ USB_ID_VENDOR(chip->usb_id),
+ USB_ID_PRODUCT(chip->usb_id));
+ return 0;
+ }
+
+ if (chip->setup & SCARLETT2_DISABLE) {
+ usb_audio_info(chip,
+ "Focusrite %s Mixer Driver disabled "
+ "by modprobe options (snd_usb_audio "
+ "vid=0x%04x pid=0x%04x device_setup=%d)\n",
+ entry->series_name,
+ USB_ID_VENDOR(chip->usb_id),
+ USB_ID_PRODUCT(chip->usb_id),
+ SCARLETT2_DISABLE);
+ return 0;
+ }
+
+ usb_audio_info(chip,
+ "Focusrite %s Mixer Driver enabled (pid=0x%04x); "
+ "report any issues to g@b4.vu",
+ entry->series_name,
+ USB_ID_PRODUCT(chip->usb_id));
+
+ err = snd_scarlett2_controls_create(mixer, entry);
+ if (err < 0)
+ usb_audio_err(mixer->chip,
+ "Error initialising %s Mixer Driver: %d",
+ entry->series_name,
+ err);
+
+ return err;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-27 17:38:45 +0000