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android-kvm / linux / d8e45f2929b94099913eb66c3ebb18b5063e9421 / . / sound / usb / mixer_scarlett2.c
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// SPDX-License-Identifier: GPL-2.0
/*
* Focusrite Scarlett 2 Protocol Driver for ALSA
* (including Scarlett 2nd Gen, 3rd Gen, 4th Gen, Clarett USB, and
* Clarett+ series products)
*
* Supported models:
* - 6i6/18i8/18i20 Gen 2
* - Solo/2i2/4i4/8i6/18i8/18i20 Gen 3
* - Solo/2i2/4i4 Gen 4
* - 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.
*
* Support for firmware updates added in Dec 2023.
*
* Support for Scarlett Solo/2i2/4i4 Gen 4 added in Dec 2023 (thanks
* to many LinuxMusicians people and to Focusrite for hardware
* donations).
*
* 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
* - input gain, autogain, safe mode
* - direct monitor mixes
*
* <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 3/4 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 <sound/hwdep.h>
#include <uapi/sound/scarlett2.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
/* maximum preamp input gain and value
* values are from 0 to 70, preamp gain is from 0 to 69 dB
*/
#define SCARLETT2_MAX_GAIN_VALUE 70
#define SCARLETT2_MAX_GAIN_DB 69
/* 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 various input controls */
#define SCARLETT2_LEVEL_SWITCH_MAX 2
#define SCARLETT2_PAD_SWITCH_MAX 8
#define SCARLETT2_AIR_SWITCH_MAX 8
#define SCARLETT2_PHANTOM_SWITCH_MAX 2
#define SCARLETT2_INPUT_GAIN_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 number of mixer gain controls */
#define SCARLETT2_MIX_MAX (SCARLETT2_INPUT_MIX_MAX * SCARLETT2_OUTPUT_MIX_MAX)
/* Maximum number of direct monitor mixer gain controls
* 1 (Solo) or 2 (2i2) direct monitor selections (Mono & Stereo)
* 2 Mix outputs (A/Left & B/Right)
* 4 Mix inputs
*/
#define SCARLETT2_MONITOR_MIX_MAX (2 * 2 * 4)
/* 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
/* 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,
SCARLETT2_PORT_TYPE_ANALOGUE,
SCARLETT2_PORT_TYPE_SPDIF,
SCARLETT2_PORT_TYPE_ADAT,
SCARLETT2_PORT_TYPE_MIX,
SCARLETT2_PORT_TYPE_PCM,
SCARLETT2_PORT_TYPE_COUNT
};
/* I/O count of each port type kept in struct scarlett2_ports */
enum {
SCARLETT2_PORT_IN,
SCARLETT2_PORT_OUT,
SCARLETT2_PORT_DIRNS
};
/* Dim/Mute buttons on the 18i20 */
enum {
SCARLETT2_BUTTON_MUTE,
SCARLETT2_BUTTON_DIM,
SCARLETT2_DIM_MUTE_COUNT
};
/* Flash Write State */
enum {
SCARLETT2_FLASH_WRITE_STATE_IDLE,
SCARLETT2_FLASH_WRITE_STATE_SELECTED,
SCARLETT2_FLASH_WRITE_STATE_ERASING,
SCARLETT2_FLASH_WRITE_STATE_WRITE
};
static const char *const scarlett2_dim_mute_names[SCARLETT2_DIM_MUTE_COUNT] = {
"Mute Playback Switch", "Dim Playback Switch"
};
/* The autogain_status is set based on the autogain_switch and
* raw_autogain_status values.
*
* If autogain_switch is set, autogain_status is set to 0 (Running).
* The other status values are from the raw_autogain_status value + 1.
*/
static const char *const scarlett2_autogain_status_texts[] = {
"Running",
"Success",
"SuccessDRover",
"WarnMinGainLimit",
"FailDRunder",
"FailMaxGainLimit",
"FailClipped",
"Cancelled",
"Invalid"
};
/* Power Status Values */
enum {
SCARLETT2_POWER_STATUS_EXT,
SCARLETT2_POWER_STATUS_BUS,
SCARLETT2_POWER_STATUS_FAIL,
SCARLETT2_POWER_STATUS_COUNT
};
/* Notification callback functions */
struct scarlett2_notification {
u32 mask;
void (*func)(struct usb_mixer_interface *mixer);
};
static void scarlett2_notify_sync(struct usb_mixer_interface *mixer);
static void scarlett2_notify_dim_mute(struct usb_mixer_interface *mixer);
static void scarlett2_notify_monitor(struct usb_mixer_interface *mixer);
static void scarlett2_notify_volume(struct usb_mixer_interface *mixer);
static void scarlett2_notify_input_level(struct usb_mixer_interface *mixer);
static void scarlett2_notify_input_pad(struct usb_mixer_interface *mixer);
static void scarlett2_notify_input_air(struct usb_mixer_interface *mixer);
static void scarlett2_notify_input_phantom(struct usb_mixer_interface *mixer);
static void scarlett2_notify_input_other(struct usb_mixer_interface *mixer);
static void scarlett2_notify_input_select(struct usb_mixer_interface *mixer);
static void scarlett2_notify_input_gain(struct usb_mixer_interface *mixer);
static void scarlett2_notify_autogain(struct usb_mixer_interface *mixer);
static void scarlett2_notify_input_safe(struct usb_mixer_interface *mixer);
static void scarlett2_notify_monitor_other(struct usb_mixer_interface *mixer);
static void scarlett2_notify_direct_monitor(struct usb_mixer_interface *mixer);
static void scarlett2_notify_power_status(struct usb_mixer_interface *mixer);
static void scarlett2_notify_pcm_input_switch(
struct usb_mixer_interface *mixer);
/* Arrays of notification callback functions */
static const struct scarlett2_notification scarlett2_notifications[] = {
{ 0x00000001, NULL }, /* ack, gets ignored */
{ 0x00000008, scarlett2_notify_sync },
{ 0x00200000, scarlett2_notify_dim_mute },
{ 0x00400000, scarlett2_notify_monitor },
{ 0x00800000, scarlett2_notify_input_other },
{ 0x01000000, scarlett2_notify_monitor_other },
{ 0, NULL }
};
static const struct scarlett2_notification scarlett3a_notifications[] = {
{ 0x00000001, NULL }, /* ack, gets ignored */
{ 0x00800000, scarlett2_notify_input_other },
{ 0x01000000, scarlett2_notify_direct_monitor },
{ 0, NULL }
};
static const struct scarlett2_notification scarlett4_solo_notifications[] = {
{ 0x00000001, NULL }, /* ack, gets ignored */
{ 0x00000008, scarlett2_notify_sync },
{ 0x00400000, scarlett2_notify_input_air },
{ 0x00800000, scarlett2_notify_direct_monitor },
{ 0x01000000, scarlett2_notify_input_level },
{ 0x02000000, scarlett2_notify_input_phantom },
{ 0x04000000, scarlett2_notify_pcm_input_switch },
{ 0, NULL }
};
static const struct scarlett2_notification scarlett4_2i2_notifications[] = {
{ 0x00000001, NULL }, /* ack, gets ignored */
{ 0x00000008, scarlett2_notify_sync },
{ 0x00200000, scarlett2_notify_input_safe },
{ 0x00400000, scarlett2_notify_autogain },
{ 0x00800000, scarlett2_notify_input_air },
{ 0x01000000, scarlett2_notify_direct_monitor },
{ 0x02000000, scarlett2_notify_input_select },
{ 0x04000000, scarlett2_notify_input_level },
{ 0x08000000, scarlett2_notify_input_phantom },
{ 0x10000000, NULL }, /* power status, ignored */
{ 0x40000000, scarlett2_notify_input_gain },
{ 0x80000000, NULL }, /* power status, ignored */
{ 0, NULL }
};
static const struct scarlett2_notification scarlett4_4i4_notifications[] = {
{ 0x00000001, NULL }, /* ack, gets ignored */
{ 0x00000008, scarlett2_notify_sync },
{ 0x00200000, scarlett2_notify_input_safe },
{ 0x00400000, scarlett2_notify_autogain },
{ 0x00800000, scarlett2_notify_input_air },
{ 0x01000000, scarlett2_notify_input_select },
{ 0x02000000, scarlett2_notify_input_level },
{ 0x04000000, scarlett2_notify_input_phantom },
{ 0x08000000, scarlett2_notify_power_status }, /* power external */
{ 0x20000000, scarlett2_notify_input_gain },
{ 0x40000000, scarlett2_notify_power_status }, /* power status */
{ 0x80000000, scarlett2_notify_volume },
{ 0, NULL }
};
/* Configuration parameters that can be read and written */
enum {
SCARLETT2_CONFIG_DIM_MUTE,
SCARLETT2_CONFIG_LINE_OUT_VOLUME,
SCARLETT2_CONFIG_MUTE_SWITCH,
SCARLETT2_CONFIG_SW_HW_SWITCH,
SCARLETT2_CONFIG_MASTER_VOLUME,
SCARLETT2_CONFIG_HEADPHONE_VOLUME,
SCARLETT2_CONFIG_LEVEL_SWITCH,
SCARLETT2_CONFIG_PAD_SWITCH,
SCARLETT2_CONFIG_MSD_SWITCH,
SCARLETT2_CONFIG_AIR_SWITCH,
SCARLETT2_CONFIG_STANDALONE_SWITCH,
SCARLETT2_CONFIG_PHANTOM_SWITCH,
SCARLETT2_CONFIG_PHANTOM_PERSISTENCE,
SCARLETT2_CONFIG_DIRECT_MONITOR,
SCARLETT2_CONFIG_MONITOR_OTHER_SWITCH,
SCARLETT2_CONFIG_MONITOR_OTHER_ENABLE,
SCARLETT2_CONFIG_TALKBACK_MAP,
SCARLETT2_CONFIG_AUTOGAIN_SWITCH,
SCARLETT2_CONFIG_AUTOGAIN_STATUS,
SCARLETT2_CONFIG_INPUT_GAIN,
SCARLETT2_CONFIG_SAFE_SWITCH,
SCARLETT2_CONFIG_INPUT_SELECT_SWITCH,
SCARLETT2_CONFIG_INPUT_LINK_SWITCH,
SCARLETT2_CONFIG_POWER_EXT,
SCARLETT2_CONFIG_POWER_LOW,
SCARLETT2_CONFIG_PCM_INPUT_SWITCH,
SCARLETT2_CONFIG_DIRECT_MONITOR_GAIN,
SCARLETT2_CONFIG_COUNT
};
/* Location, size, and activation command number for the configuration
* parameters. Size is in bits and may be 0, 1, 8, or 16.
*
* A size of 0 indicates that the parameter is a byte-sized Scarlett
* Gen 4 configuration which is written through the gen4_write_addr
* location (but still read through the given offset location).
*
* Some Gen 4 configuration parameters are written with 0x02 for a
* desired value of 0x01, and 0x03 for 0x00. These are indicated with
* mute set to 1. 0x02 and 0x03 are temporary values while the device
* makes the change and the channel and/or corresponding DSP channel
* output is muted.
*/
struct scarlett2_config {
u16 offset;
u8 size;
u8 activate;
u8 mute;
};
struct scarlett2_config_set {
const struct scarlett2_notification *notifications;
u16 gen4_write_addr;
const struct scarlett2_config items[SCARLETT2_CONFIG_COUNT];
};
/* Gen 2 devices without SW/HW volume switch: 6i6, 18i8 */
static const struct scarlett2_config_set scarlett2_config_set_gen2a = {
.notifications = scarlett2_notifications,
.items = {
[SCARLETT2_CONFIG_LINE_OUT_VOLUME] = {
.offset = 0x34, .size = 16, .activate = 1 },
[SCARLETT2_CONFIG_MUTE_SWITCH] = {
.offset = 0x5c, .size = 8, .activate = 1 },
[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 2 devices with SW/HW volume switch: 18i20 */
static const struct scarlett2_config_set scarlett2_config_set_gen2b = {
.notifications = scarlett2_notifications,
.items = {
[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_MASTER_VOLUME] = {
.offset = 0x76, .size = 16 },
[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) */
static const struct scarlett2_config_set scarlett2_config_set_gen3a = {
.notifications = scarlett3a_notifications,
.items = {
[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 without SW/HW volume switch: 4i4, 8i6 */
static const struct scarlett2_config_set scarlett2_config_set_gen3b = {
.notifications = scarlett2_notifications,
.items = {
[SCARLETT2_CONFIG_LINE_OUT_VOLUME] = {
.offset = 0x34, .size = 16, .activate = 1 },
[SCARLETT2_CONFIG_MUTE_SWITCH] = {
.offset = 0x5c, .size = 8, .activate = 1 },
[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 },
}
};
/* Gen 3 devices with SW/HW volume switch: 18i8, 18i20 */
static const struct scarlett2_config_set scarlett2_config_set_gen3c = {
.notifications = scarlett2_notifications,
.items = {
[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_MASTER_VOLUME] = {
.offset = 0x76, .size = 16 },
[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 },
}
};
/* Solo Gen 4 */
static const struct scarlett2_config_set scarlett2_config_set_gen4_solo = {
.notifications = scarlett4_solo_notifications,
.gen4_write_addr = 0xd8,
.items = {
[SCARLETT2_CONFIG_MSD_SWITCH] = {
.offset = 0x47, .size = 8, .activate = 4 },
[SCARLETT2_CONFIG_DIRECT_MONITOR] = {
.offset = 0x108, .activate = 12 },
[SCARLETT2_CONFIG_PHANTOM_SWITCH] = {
.offset = 0x46, .activate = 9, .mute = 1 },
[SCARLETT2_CONFIG_LEVEL_SWITCH] = {
.offset = 0x3d, .activate = 10, .mute = 1 },
[SCARLETT2_CONFIG_AIR_SWITCH] = {
.offset = 0x3e, .activate = 11 },
[SCARLETT2_CONFIG_PCM_INPUT_SWITCH] = {
.offset = 0x206, .activate = 25 },
[SCARLETT2_CONFIG_DIRECT_MONITOR_GAIN] = {
.offset = 0x232, .size = 16, .activate = 26 }
}
};
/* 2i2 Gen 4 */
static const struct scarlett2_config_set scarlett2_config_set_gen4_2i2 = {
.notifications = scarlett4_2i2_notifications,
.gen4_write_addr = 0xfc,
.items = {
[SCARLETT2_CONFIG_MSD_SWITCH] = {
.offset = 0x49, .size = 8, .activate = 4 }, // 0x41 ??
[SCARLETT2_CONFIG_DIRECT_MONITOR] = {
.offset = 0x14a, .activate = 16 },
[SCARLETT2_CONFIG_AUTOGAIN_SWITCH] = {
.offset = 0x135, .activate = 10 },
[SCARLETT2_CONFIG_AUTOGAIN_STATUS] = {
.offset = 0x137 },
[SCARLETT2_CONFIG_PHANTOM_SWITCH] = {
.offset = 0x48, .activate = 11, .mute = 1 },
[SCARLETT2_CONFIG_INPUT_GAIN] = {
.offset = 0x4b, .activate = 12 },
[SCARLETT2_CONFIG_LEVEL_SWITCH] = {
.offset = 0x3c, .activate = 13, .mute = 1 },
[SCARLETT2_CONFIG_SAFE_SWITCH] = {
.offset = 0x147, .activate = 14 },
[SCARLETT2_CONFIG_AIR_SWITCH] = {
.offset = 0x3e, .activate = 15 },
[SCARLETT2_CONFIG_INPUT_SELECT_SWITCH] = {
.offset = 0x14b, .activate = 17 },
[SCARLETT2_CONFIG_INPUT_LINK_SWITCH] = {
.offset = 0x14e, .activate = 18 },
[SCARLETT2_CONFIG_DIRECT_MONITOR_GAIN] = {
.offset = 0x2a0, .size = 16, .activate = 36 }
}
};
/* 4i4 Gen 4 */
static const struct scarlett2_config_set scarlett2_config_set_gen4_4i4 = {
.notifications = scarlett4_4i4_notifications,
.gen4_write_addr = 0x130,
.items = {
[SCARLETT2_CONFIG_MSD_SWITCH] = {
.offset = 0x5c, .size = 8, .activate = 4 },
[SCARLETT2_CONFIG_AUTOGAIN_SWITCH] = {
.offset = 0x13e, .activate = 10 },
[SCARLETT2_CONFIG_AUTOGAIN_STATUS] = {
.offset = 0x140 },
[SCARLETT2_CONFIG_PHANTOM_SWITCH] = {
.offset = 0x5a, .activate = 11, .mute = 1 },
[SCARLETT2_CONFIG_INPUT_GAIN] = {
.offset = 0x5e, .activate = 12 },
[SCARLETT2_CONFIG_LEVEL_SWITCH] = {
.offset = 0x4e, .activate = 13, .mute = 1 },
[SCARLETT2_CONFIG_SAFE_SWITCH] = {
.offset = 0x150, .activate = 14 },
[SCARLETT2_CONFIG_AIR_SWITCH] = {
.offset = 0x50, .activate = 15 },
[SCARLETT2_CONFIG_INPUT_SELECT_SWITCH] = {
.offset = 0x153, .activate = 16 },
[SCARLETT2_CONFIG_INPUT_LINK_SWITCH] = {
.offset = 0x156, .activate = 17 },
[SCARLETT2_CONFIG_MASTER_VOLUME] = {
.offset = 0x32, .size = 16 },
[SCARLETT2_CONFIG_HEADPHONE_VOLUME] = {
.offset = 0x3a, .size = 16 },
[SCARLETT2_CONFIG_POWER_EXT] = {
.offset = 0x168 },
[SCARLETT2_CONFIG_POWER_LOW] = {
.offset = 0x16d }
}
};
/* Clarett USB and Clarett+ devices: 2Pre, 4Pre, 8Pre */
static const struct scarlett2_config_set scarlett2_config_set_clarett = {
.notifications = scarlett2_notifications,
.items = {
[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_MASTER_VOLUME] = {
.offset = 0x76, .size = 16 },
[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 },
}
};
/* 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;
const char * const dsp_src_descr;
const char * const dsp_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",
.dsp_src_descr = "DSP %d",
.dsp_dst_descr = "DSP Input %d 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 {
/* which set of configuration parameters the device uses */
const struct scarlett2_config_set *config_set;
/* minimum firmware version required */
u16 min_firmware_version;
/* 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 first input with an air control (0-based) */
u8 air_input_first;
/* number of additional air options
* 0 for air presence only (Gen 3)
* 1 for air presence+drive (Gen 4)
*/
u8 air_option;
/* the number of phantom (48V) software switchable controls */
u8 phantom_count;
/* the first input with phantom power control (0-based) */
u8 phantom_first;
/* the number of inputs each phantom switch controls */
u8 inputs_per_phantom;
/* the number of inputs with software-controllable gain */
u8 gain_input_count;
/* the number of direct monitor options
* (0 = none, 1 = mono only, 2 = mono/stereo)
*/
u8 direct_monitor;
/* the number of DSP channels */
u8 dsp_count;
/* 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 */
u8 hwdep_in_use;
u8 selected_flash_segment_id;
u8 flash_write_state;
struct delayed_work work;
const struct scarlett2_device_info *info;
const struct scarlett2_config_set *config_set;
const char *series_name;
__u8 bInterfaceNumber;
__u8 bEndpointAddress;
__u16 wMaxPacketSize;
__u8 bInterval;
u8 num_mux_srcs;
u8 num_mux_dsts;
u8 num_mix_in;
u8 num_mix_out;
u8 num_line_out;
u8 num_monitor_mix_ctls;
u32 firmware_version;
u8 flash_segment_nums[SCARLETT2_SEGMENT_ID_COUNT];
u8 flash_segment_blocks[SCARLETT2_SEGMENT_ID_COUNT];
u16 scarlett2_seq;
u8 sync_updated;
u8 vol_updated;
u8 dim_mute_updated;
u8 input_level_updated;
u8 input_pad_updated;
u8 input_air_updated;
u8 input_phantom_updated;
u8 input_select_updated;
u8 input_gain_updated;
u8 autogain_updated;
u8 input_safe_updated;
u8 pcm_input_switch_updated;
u8 monitor_other_updated;
u8 direct_monitor_updated;
u8 mux_updated;
u8 mix_updated;
u8 speaker_switching_switched;
u8 power_status_updated;
u8 sync;
u8 master_vol;
u8 headphone_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 input_select_switch;
u8 input_link_switch[SCARLETT2_INPUT_GAIN_MAX / 2];
u8 gain[SCARLETT2_INPUT_GAIN_MAX];
u8 autogain_switch[SCARLETT2_INPUT_GAIN_MAX];
u8 autogain_status[SCARLETT2_INPUT_GAIN_MAX];
u8 safe_switch[SCARLETT2_INPUT_GAIN_MAX];
u8 pcm_input_switch;
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 power_status;
u8 meter_level_map[SCARLETT2_MAX_METERS];
struct snd_kcontrol *sync_ctl;
struct snd_kcontrol *master_vol_ctl;
struct snd_kcontrol *headphone_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 *input_select_ctl;
struct snd_kcontrol *input_link_ctls[SCARLETT2_INPUT_GAIN_MAX / 2];
struct snd_kcontrol *input_gain_ctls[SCARLETT2_INPUT_GAIN_MAX];
struct snd_kcontrol *autogain_ctls[SCARLETT2_INPUT_GAIN_MAX];
struct snd_kcontrol *autogain_status_ctls[SCARLETT2_INPUT_GAIN_MAX];
struct snd_kcontrol *safe_ctls[SCARLETT2_INPUT_GAIN_MAX];
struct snd_kcontrol *pcm_input_switch_ctl;
struct snd_kcontrol *mux_ctls[SCARLETT2_MUX_MAX];
struct snd_kcontrol *mix_ctls[SCARLETT2_MIX_MAX];
struct snd_kcontrol *direct_monitor_ctl;
struct snd_kcontrol *speaker_switching_ctl;
struct snd_kcontrol *talkback_ctl;
struct snd_kcontrol *power_status_ctl;
u8 mux[SCARLETT2_MUX_MAX];
u8 mix[SCARLETT2_MIX_MAX];
u8 monitor_mix[SCARLETT2_MONITOR_MIX_MAX];
};
/*** Model-specific data ***/
static const struct scarlett2_device_info s6i6_gen2_info = {
.config_set = &scarlett2_config_set_gen2a,
.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_gen2a,
.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_gen2b,
.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 = {
.config_set = &scarlett2_config_set_gen3a,
.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 = {
.config_set = &scarlett2_config_set_gen3a,
.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 = {
.config_set = &scarlett2_config_set_gen3b,
.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 = {
.config_set = &scarlett2_config_set_gen3b,
.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 = {
.config_set = &scarlett2_config_set_gen3c,
.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 = {
.config_set = &scarlett2_config_set_gen3c,
.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 solo_gen4_info = {
.config_set = &scarlett2_config_set_gen4_solo,
.min_firmware_version = 2115,
.level_input_count = 1,
.air_input_count = 1,
.air_input_first = 1,
.air_option = 1,
.phantom_count = 1,
.phantom_first = 1,
.inputs_per_phantom = 1,
.direct_monitor = 1,
.dsp_count = 2,
.port_count = {
[SCARLETT2_PORT_TYPE_NONE] = { 1, 0 },
[SCARLETT2_PORT_TYPE_ANALOGUE] = { 2, 2 },
[SCARLETT2_PORT_TYPE_MIX] = { 8, 6 },
[SCARLETT2_PORT_TYPE_PCM] = { 2, 4 },
},
.mux_assignment = { {
{ SCARLETT2_PORT_TYPE_MIX, 4, 2 },
{ SCARLETT2_PORT_TYPE_MIX, 2, 2 },
{ SCARLETT2_PORT_TYPE_PCM, 0, 4 },
{ SCARLETT2_PORT_TYPE_MIX, 0, 2 },
{ SCARLETT2_PORT_TYPE_ANALOGUE, 0, 2 },
{ 0, 0, 0 },
}, {
{ SCARLETT2_PORT_TYPE_MIX, 4, 2 },
{ SCARLETT2_PORT_TYPE_MIX, 2, 2 },
{ SCARLETT2_PORT_TYPE_PCM, 0, 4 },
{ SCARLETT2_PORT_TYPE_MIX, 0, 2 },
{ SCARLETT2_PORT_TYPE_ANALOGUE, 0, 2 },
{ 0, 0, 0 },
}, {
{ SCARLETT2_PORT_TYPE_MIX, 4, 2 },
{ SCARLETT2_PORT_TYPE_MIX, 2, 2 },
{ SCARLETT2_PORT_TYPE_PCM, 0, 4 },
{ SCARLETT2_PORT_TYPE_MIX, 0, 2 },
{ SCARLETT2_PORT_TYPE_ANALOGUE, 0, 2 },
{ 0, 0, 0 },
} },
.meter_map = {
{ 6, 2 },
{ 4, 2 },
{ 8, 4 },
{ 2, 2 },
{ 0, 2 },
{ 0, 0 }
}
};
static const struct scarlett2_device_info s2i2_gen4_info = {
.config_set = &scarlett2_config_set_gen4_2i2,
.min_firmware_version = 2115,
.level_input_count = 2,
.air_input_count = 2,
.air_option = 1,
.phantom_count = 1,
.inputs_per_phantom = 2,
.gain_input_count = 2,
.direct_monitor = 2,
.dsp_count = 2,
.port_count = {
[SCARLETT2_PORT_TYPE_NONE] = { 1, 0 },
[SCARLETT2_PORT_TYPE_ANALOGUE] = { 2, 2 },
[SCARLETT2_PORT_TYPE_MIX] = { 6, 6 },
[SCARLETT2_PORT_TYPE_PCM] = { 2, 4 },
},
.mux_assignment = { {
{ SCARLETT2_PORT_TYPE_MIX, 4, 2 },
{ SCARLETT2_PORT_TYPE_MIX, 2, 2 },
{ SCARLETT2_PORT_TYPE_PCM, 0, 4 },
{ SCARLETT2_PORT_TYPE_MIX, 0, 2 },
{ SCARLETT2_PORT_TYPE_ANALOGUE, 0, 2 },
{ 0, 0, 0 },
}, {
{ SCARLETT2_PORT_TYPE_MIX, 4, 2 },
{ SCARLETT2_PORT_TYPE_MIX, 2, 2 },
{ SCARLETT2_PORT_TYPE_PCM, 0, 4 },
{ SCARLETT2_PORT_TYPE_MIX, 0, 2 },
{ SCARLETT2_PORT_TYPE_ANALOGUE, 0, 2 },
{ 0, 0, 0 },
}, {
{ SCARLETT2_PORT_TYPE_MIX, 4, 2 },
{ SCARLETT2_PORT_TYPE_MIX, 2, 2 },
{ SCARLETT2_PORT_TYPE_PCM, 0, 4 },
{ SCARLETT2_PORT_TYPE_MIX, 0, 2 },
{ SCARLETT2_PORT_TYPE_ANALOGUE, 0, 2 },
{ 0, 0, 0 },
} },
.meter_map = {
{ 6, 2 },
{ 4, 2 },
{ 8, 4 },
{ 2, 2 },
{ 0, 2 },
{ 0, 0 }
}
};
static const struct scarlett2_device_info s4i4_gen4_info = {
.config_set = &scarlett2_config_set_gen4_4i4,
.min_firmware_version = 2089,
.level_input_count = 2,
.air_input_count = 2,
.air_option = 1,
.phantom_count = 2,
.inputs_per_phantom = 1,
.gain_input_count = 2,
.dsp_count = 2,
.port_count = {
[SCARLETT2_PORT_TYPE_NONE] = { 1, 0 },
[SCARLETT2_PORT_TYPE_ANALOGUE] = { 4, 6 },
[SCARLETT2_PORT_TYPE_MIX] = { 8, 12 },
[SCARLETT2_PORT_TYPE_PCM] = { 6, 6 },
},
.mux_assignment = { {
{ SCARLETT2_PORT_TYPE_MIX, 10, 2 },
{ SCARLETT2_PORT_TYPE_PCM, 0, 6 },
{ SCARLETT2_PORT_TYPE_MIX, 0, 10 },
{ SCARLETT2_PORT_TYPE_ANALOGUE, 0, 6 },
{ 0, 0, 0 },
}, {
{ SCARLETT2_PORT_TYPE_MIX, 10, 2 },
{ SCARLETT2_PORT_TYPE_PCM, 0, 6 },
{ SCARLETT2_PORT_TYPE_MIX, 0, 10 },
{ SCARLETT2_PORT_TYPE_ANALOGUE, 0, 6 },
{ 0, 0, 0 },
}, {
{ SCARLETT2_PORT_TYPE_MIX, 10, 2 },
{ SCARLETT2_PORT_TYPE_PCM, 0, 6 },
{ SCARLETT2_PORT_TYPE_MIX, 0, 10 },
{ SCARLETT2_PORT_TYPE_ANALOGUE, 0, 6 },
{ 0, 0, 0 },
} },
.meter_map = {
{ 16, 8 },
{ 6, 10 },
{ 0, 6 },
{ 0, 0 }
}
};
static const struct scarlett2_device_info clarett_2pre_info = {
.config_set = &scarlett2_config_set_clarett,
.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,
.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,
.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 Gen 4 devices */
{ USB_ID(0x1235, 0x8218), &solo_gen4_info, "Scarlett Gen 4" },
{ USB_ID(0x1235, 0x8219), &s2i2_gen4_info, "Scarlett Gen 4" },
{ USB_ID(0x1235, 0x821a), &s4i4_gen4_info, "Scarlett Gen 4" },
/* 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 ***/
/* 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_REBOOT 0x00000003
#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_INFO_FLASH 0x00004000
#define SCARLETT2_USB_INFO_SEGMENT 0x00004001
#define SCARLETT2_USB_ERASE_SEGMENT 0x00004002
#define SCARLETT2_USB_GET_ERASE 0x00004003
#define SCARLETT2_USB_WRITE_SEGMENT 0x00004004
#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_METER_LEVELS_GET_MAGIC 1
#define SCARLETT2_FLASH_BLOCK_SIZE 4096
#define SCARLETT2_FLASH_WRITE_MAX 1024
#define SCARLETT2_SEGMENT_NUM_MIN 1
#define SCARLETT2_SEGMENT_NUM_MAX 4
#define SCARLETT2_SEGMENT_SETTINGS_NAME "App_Settings"
#define SCARLETT2_SEGMENT_FIRMWARE_NAME "App_Upgrade"
/* 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) {
/* ESHUTDOWN and EPROTO are valid responses to a
* reboot request
*/
if (cmd == SCARLETT2_USB_REBOOT &&
(err == -ESHUTDOWN || err == -EPROTO)) {
err = 0;
goto unlock;
}
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);
}
/* Return true if the given configuration item is present in the
* configuration set used by this device.
*/
static int scarlett2_has_config_item(
struct scarlett2_data *private, int config_item_num)
{
return !!private->config_set->items[config_item_num].offset;
}
/* 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_config *config_item =
&private->config_set->items[config_item_num];
int size, err, i;
u8 *buf_8;
u8 value;
/* Check that the configuration item is present in the
* configuration set used by this device
*/
if (!config_item->offset)
return -EFAULT;
/* Gen 4 style parameters are always 1 byte */
size = config_item->size ? config_item->size : 8;
/* For byte-sized parameters, retrieve directly into buf */
if (size >= 8) {
size = 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 a SCARLETT2_USB_SET_DATA command.
* offset: location in the device's data space
* size: size in bytes of the value (1, 2, 4)
*/
static int scarlett2_usb_set_data(
struct usb_mixer_interface *mixer,
int offset, int size, int value)
{
struct scarlett2_data *private = mixer->private_data;
struct {
__le32 offset;
__le32 size;
__le32 value;
} __packed req;
req.offset = cpu_to_le32(offset);
req.size = cpu_to_le32(size);
req.value = cpu_to_le32(value);
return scarlett2_usb(private->mixer, SCARLETT2_USB_SET_DATA,
&req, sizeof(u32) * 2 + size, NULL, 0);
}
/* Send a SCARLETT2_USB_DATA_CMD command.
* Configuration changes require activation with this after they have
* been uploaded by a previous SCARLETT2_USB_SET_DATA.
* The value for activate needed is determined by the configuration
* item.
*/
static int scarlett2_usb_activate_config(
struct usb_mixer_interface *mixer, int activate)
{
__le32 req;
req = cpu_to_le32(activate);
return scarlett2_usb(mixer, SCARLETT2_USB_DATA_CMD,
&req, sizeof(req), NULL, 0);
}
/* Send USB messages 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_config_set *config_set = private->config_set;
const struct scarlett2_config *config_item =
&config_set->items[config_item_num];
int offset, size;
int err;
/* Check that the configuration item is present in the
* configuration set used by this device
*/
if (!config_item->offset)
return -EFAULT;
/* Gen 4 style writes are selected with size = 0;
* these are only byte-sized values written through a shared
* location, different to the read address
*/
if (!config_item->size) {
if (!config_set->gen4_write_addr)
return -EFAULT;
/* Place index in gen4_write_addr + 1 */
err = scarlett2_usb_set_data(
mixer, config_set->gen4_write_addr + 1, 1, index);
if (err < 0)
return err;
/* Place value in gen4_write_addr */
err = scarlett2_usb_set_data(
mixer, config_set->gen4_write_addr, 1, value);
if (err < 0)
return err;
/* Request the interface do the write */
return scarlett2_usb_activate_config(
mixer, config_item->activate);
}
/* Not-Gen 4 style needs NVRAM save, supports
* bit-modification, and writing is done to the same place
* that the value can be read from
*/
/* 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;
err = scarlett2_usb_get(mixer, offset, &tmp, 1);
if (err < 0)
return err;
if (value)
tmp |= (1 << index);
else
tmp &= ~(1 << index);
value = tmp;
}
/* Send the configuration parameter data */
err = scarlett2_usb_set_data(mixer, offset, size, value);
if (err < 0)
return err;
/* Activate the change */
err = scarlett2_usb_activate_config(mixer, config_item->activate);
if (err < 0)
return err;
/* Gen 2 style writes to Gen 4 devices don't need saving */
if (config_set->gen4_write_addr)
return 0;
/* 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 SCARLETT2_USB_DATA_CMD SCARLETT2_USB_CONFIG_SAVE */
static void scarlett2_config_save(struct usb_mixer_interface *mixer)
{
int err;
err = scarlett2_usb_activate_config(mixer, SCARLETT2_USB_CONFIG_SAVE);
if (err < 0)
usb_audio_err(mixer->chip, "config save failed: %d\n", err);
}
/* 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 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;
}
/* Return true if the device has a mixer that we can control */
static int scarlett2_has_mixer(struct scarlett2_data *private)
{
return !!private->info->mux_assignment[0][0].count;
}
/* Map from mixer value to (db + 80) * 2
* (reverse of scarlett2_mixer_values[])
*/
static int scarlett2_mixer_value_to_db(int value)
{
int i;
for (i = 0; i < SCARLETT2_MIXER_VALUE_COUNT; i++)
if (scarlett2_mixer_values[i] >= value)
return i;
return SCARLETT2_MIXER_MAX_VALUE;
}
/* 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;
int num_mixer_in = private->num_mix_in;
int err, i, j;
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++)
private->mix[j] = scarlett2_mixer_value_to_db(
le16_to_cpu(data[i]));
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;
struct {
__le16 mix_num;
__le16 data[SCARLETT2_INPUT_MIX_MAX];
} __packed req;
int i, j;
int num_mixer_in = private->num_mix_in;
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 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 < private->num_line_out
) ? 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;
__le32 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] = le32_to_cpu(resp[i]);
return 0;
}
/* For config items with mute=1, xor bits 0 & 1 together to get the
* current/next state. This won't have any effect on values which are
* only ever 0/1.
*/
static uint8_t scarlett2_decode_muteable(uint8_t v)
{
return (v ^ (v >> 1)) & 1;
}
/*** 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);
}
/*** Minimum Firmware Version Control ***/
static int scarlett2_min_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->info->min_firmware_version;
return 0;
}
static int scarlett2_min_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_min_firmware_version_ctl = {
.iface = SNDRV_CTL_ELEM_IFACE_CARD,
.access = SNDRV_CTL_ELEM_ACCESS_READ,
.name = "",
.info = scarlett2_min_firmware_version_ctl_info,
.get = scarlett2_min_firmware_version_ctl_get
};
static int scarlett2_add_min_firmware_version_ctl(
struct usb_mixer_interface *mixer)
{
return scarlett2_add_new_ctl(mixer, &scarlett2_min_firmware_version_ctl,
0, 0, "Minimum 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;
int err = 0;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
if (private->sync_updated) {
err = scarlett2_update_sync(mixer);
if (err < 0)
goto unlock;
}
ucontrol->value.enumerated.item[0] = private->sync;
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
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 (!scarlett2_has_mixer(private))
return 0;
return scarlett2_add_new_ctl(mixer, &scarlett2_sync_ctl,
0, 1, "Sync Status", &private->sync_ctl);
}
/*** Autogain Switch and Status Controls ***/
/* Forward declarations as phantom power and autogain can disable each other */
static int scarlett2_check_input_phantom_updated(struct usb_mixer_interface *);
static int scarlett2_phantom_is_switching(struct scarlett2_data *, int);
/* Set the access mode of a control to read-only (val = 0) or
* read-write (val = 1).
*/
static void scarlett2_set_ctl_access(struct snd_kcontrol *kctl, int val)
{
if (val)
kctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_WRITE;
else
kctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_WRITE;
}
/* Check if autogain is running on any input */
static int scarlett2_autogain_is_running(struct scarlett2_data *private)
{
int i;
/* autogain_status[] is 0 if autogain is running */
for (i = 0; i < private->info->gain_input_count; i++)
if (!private->autogain_status[i])
return 1;
return 0;
}
static int scarlett2_update_autogain(struct usb_mixer_interface *mixer)
{
struct scarlett2_data *private = mixer->private_data;
const struct scarlett2_device_info *info = private->info;
int err, i;
u8 raw_autogain_status[SCARLETT2_INPUT_GAIN_MAX];
private->autogain_updated = 0;
if (!info->gain_input_count)
return 0;
err = scarlett2_usb_get_config(
mixer, SCARLETT2_CONFIG_AUTOGAIN_SWITCH,
info->gain_input_count, private->autogain_switch);
if (err < 0)
return err;
err = scarlett2_usb_get_config(
mixer, SCARLETT2_CONFIG_AUTOGAIN_STATUS,
info->gain_input_count, raw_autogain_status);
if (err < 0)
return err;
/* Translate autogain_switch and raw_autogain_status into
* autogain_status.
*
* When autogain_switch[] is set, the status is the first
* element in scarlett2_autogain_status_texts[] (Running). The
* subsequent elements correspond to the status value from the
* device (raw_autogain_status[]) + 1. The last element is
* "Invalid", in case the device reports a status outside the
* range of scarlett2_autogain_status_texts[].
*/
for (i = 0; i < info->gain_input_count; i++)
if (private->autogain_switch[i])
private->autogain_status[i] = 0;
else if (raw_autogain_status[i] <
ARRAY_SIZE(scarlett2_autogain_status_texts) - 1)
private->autogain_status[i] =
raw_autogain_status[i] + 1;
else
private->autogain_status[i] =
ARRAY_SIZE(scarlett2_autogain_status_texts) - 1;
return 0;
}
/* Update access mode for controls affected by autogain */
static void scarlett2_autogain_update_access(struct usb_mixer_interface *mixer)
{
struct scarlett2_data *private = mixer->private_data;
const struct scarlett2_device_info *info = private->info;
int val = !scarlett2_autogain_is_running(private);
int i;
scarlett2_set_ctl_access(private->input_select_ctl, val);
for (i = 0; i < info->gain_input_count / 2; i++)
scarlett2_set_ctl_access(private->input_link_ctls[i], val);
for (i = 0; i < info->gain_input_count; i++) {
scarlett2_set_ctl_access(private->input_gain_ctls[i], val);
scarlett2_set_ctl_access(private->safe_ctls[i], val);
}
for (i = 0; i < info->level_input_count; i++)
scarlett2_set_ctl_access(private->level_ctls[i], val);
for (i = 0; i < info->air_input_count; i++)
scarlett2_set_ctl_access(private->air_ctls[i], val);
for (i = 0; i < info->phantom_count; i++)
scarlett2_set_ctl_access(private->phantom_ctls[i], val);
}
/* Notify of access mode change for all controls read-only while
* autogain runs.
*/
static void scarlett2_autogain_notify_access(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;
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_INFO,
&private->input_select_ctl->id);
for (i = 0; i < info->gain_input_count / 2; i++)
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_INFO,
&private->input_link_ctls[i]->id);
for (i = 0; i < info->gain_input_count; i++) {
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_INFO,
&private->input_gain_ctls[i]->id);
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_INFO,
&private->safe_ctls[i]->id);
}
for (i = 0; i < info->level_input_count; i++)
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_INFO,
&private->level_ctls[i]->id);
for (i = 0; i < info->air_input_count; i++)
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_INFO,
&private->air_ctls[i]->id);
for (i = 0; i < info->phantom_count; i++)
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_INFO,
&private->phantom_ctls[i]->id);
}
/* Call scarlett2_update_autogain() and
* scarlett2_autogain_update_access() if autogain_updated is set.
*/
static int scarlett2_check_autogain_updated(
struct usb_mixer_interface *mixer)
{
struct scarlett2_data *private = mixer->private_data;
int err;
if (!private->autogain_updated)
return 0;
err = scarlett2_update_autogain(mixer);
if (err < 0)
return err;
scarlett2_autogain_update_access(mixer);
return 0;
}
/* If autogain_updated is set when a *_ctl_put() function for a
* control that is meant to be read-only while autogain is running,
* update the autogain status and access mode of affected controls.
* Return -EPERM if autogain is running.
*/
static int scarlett2_check_put_during_autogain(
struct usb_mixer_interface *mixer)
{
int err = scarlett2_check_autogain_updated(mixer);
if (err < 0)
return err;
if (scarlett2_autogain_is_running(mixer->private_data))
return -EPERM;
return 0;
}
static int scarlett2_autogain_switch_ctl_info(
struct snd_kcontrol *kctl, struct snd_ctl_elem_info *uinfo)
{
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 err;
mutex_lock(&private->data_mutex);
err = scarlett2_check_input_phantom_updated(mixer);
if (err < 0)
goto unlock;
err = snd_ctl_boolean_mono_info(kctl, uinfo);
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
static int scarlett2_autogain_switch_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 err;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
err = scarlett2_check_autogain_updated(mixer);
if (err < 0)
goto unlock;
ucontrol->value.enumerated.item[0] =
private->autogain_switch[elem->control];
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
static int scarlett2_autogain_status_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 err;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
err = scarlett2_check_autogain_updated(mixer);
if (err < 0)
goto unlock;
ucontrol->value.enumerated.item[0] =
private->autogain_status[elem->control];
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
static int scarlett2_autogain_switch_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;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
err = scarlett2_check_input_phantom_updated(mixer);
if (err < 0)
goto unlock;
if (scarlett2_phantom_is_switching(private, index)) {
err = -EPERM;
goto unlock;
}
oval = private->autogain_switch[index];
val = !!ucontrol->value.integer.value[0];
if (oval == val)
goto unlock;
private->autogain_switch[index] = val;
/* Send switch change to the device */
err = scarlett2_usb_set_config(
mixer, SCARLETT2_CONFIG_AUTOGAIN_SWITCH, index, val);
if (err == 0)
err = 1;
scarlett2_autogain_update_access(mixer);
scarlett2_autogain_notify_access(mixer);
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
static int scarlett2_autogain_status_ctl_info(
struct snd_kcontrol *kctl, struct snd_ctl_elem_info *uinfo)
{
return snd_ctl_enum_info(
uinfo, 1,
ARRAY_SIZE(scarlett2_autogain_status_texts),
scarlett2_autogain_status_texts);
}
static const struct snd_kcontrol_new scarlett2_autogain_switch_ctl = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "",
.info = scarlett2_autogain_switch_ctl_info,
.get = scarlett2_autogain_switch_ctl_get,
.put = scarlett2_autogain_switch_ctl_put
};
static const struct snd_kcontrol_new scarlett2_autogain_status_ctl = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.access = SNDRV_CTL_ELEM_ACCESS_READ,
.name = "",
.info = scarlett2_autogain_status_ctl_info,
.get = scarlett2_autogain_status_ctl_get,
};
/*** Input Select Control ***/
static int scarlett2_update_input_select(struct usb_mixer_interface *mixer)
{
struct scarlett2_data *private = mixer->private_data;
const struct scarlett2_device_info *info = private->info;
int link_count = info->gain_input_count / 2;
int err;
private->input_select_updated = 0;
if (!link_count)
return 0;
err = scarlett2_usb_get_config(
mixer, SCARLETT2_CONFIG_INPUT_SELECT_SWITCH,
1, &private->input_select_switch);
if (err < 0)
return err;
err = scarlett2_usb_get_config(
mixer, SCARLETT2_CONFIG_INPUT_LINK_SWITCH,
link_count, private->input_link_switch);
if (err < 0)
return err;
/* simplified because no model yet has link_count > 1 */
if (private->input_link_switch[0])
private->input_select_switch = 0;
return 0;
}
static int scarlett2_input_select_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 err = 0;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
if (private->input_select_updated) {
err = scarlett2_update_input_select(mixer);
if (err < 0)
goto unlock;
}
ucontrol->value.enumerated.item[0] = private->input_select_switch;
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
static int scarlett2_input_select_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;
int max_val = private->input_link_switch[0] ? 0 : 1;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
err = scarlett2_check_put_during_autogain(mixer);
if (err < 0)
goto unlock;
oval = private->input_select_switch;
val = ucontrol->value.integer.value[0];
if (val < 0)
val = 0;
else if (val > max_val)
val = max_val;
if (oval == val)
goto unlock;
private->input_select_switch = val;
/* Send switch change to the device if inputs not linked */
if (!private->input_link_switch[0])
err = scarlett2_usb_set_config(
mixer, SCARLETT2_CONFIG_INPUT_SELECT_SWITCH,
1, val);
if (err == 0)
err = 1;
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
static int scarlett2_input_select_ctl_info(
struct snd_kcontrol *kctl, struct snd_ctl_elem_info *uinfo)
{
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 inputs = private->info->gain_input_count;
int i, j;
int err;
char **values = kcalloc(inputs, sizeof(char *), GFP_KERNEL);
if (!values)
return -ENOMEM;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
err = scarlett2_check_autogain_updated(mixer);
if (err < 0)
goto unlock;
/* Loop through each input
* Linked inputs have one value for the pair
*/
for (i = 0, j = 0; i < inputs; i++) {
if (private->input_link_switch[i / 2]) {
values[j++] = kasprintf(
GFP_KERNEL, "Input %d-%d", i + 1, i + 2);
i++;
} else {
values[j++] = kasprintf(
GFP_KERNEL, "Input %d", i + 1);
}
}
err = snd_ctl_enum_info(uinfo, 1, j,
(const char * const *)values);
unlock:
mutex_unlock(&private->data_mutex);
for (i = 0; i < inputs; i++)
kfree(values[i]);
kfree(values);
return err;
}
static const struct snd_kcontrol_new scarlett2_input_select_ctl = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "",
.info = scarlett2_input_select_ctl_info,
.get = scarlett2_input_select_ctl_get,
.put = scarlett2_input_select_ctl_put,
};
/*** Input Link Switch Controls ***/
/* snd_ctl_boolean_mono_info() with autogain-updated check
* (for controls that are read-only while autogain is running)
*/
static int scarlett2_autogain_disables_ctl_info(struct snd_kcontrol *kctl,
struct snd_ctl_elem_info *uinfo)
{
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 err;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
err = scarlett2_check_autogain_updated(mixer);
if (err < 0)
goto unlock;
err = snd_ctl_boolean_mono_info(kctl, uinfo);
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
static int scarlett2_input_link_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 err = 0;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
if (private->input_select_updated) {
err = scarlett2_update_input_select(mixer);
if (err < 0)
goto unlock;
}
ucontrol->value.enumerated.item[0] =
private->input_link_switch[elem->control];
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
static int scarlett2_input_link_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;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
err = scarlett2_check_put_during_autogain(mixer);
if (err < 0)
goto unlock;
oval = private->input_link_switch[index];
val = !!ucontrol->value.integer.value[0];
if (oval == val)
goto unlock;
private->input_link_switch[index] = val;
/* Notify of change in input select options available */
snd_ctl_notify(mixer->chip->card,
SNDRV_CTL_EVENT_MASK_VALUE | SNDRV_CTL_EVENT_MASK_INFO,
&private->input_select_ctl->id);
private->input_select_updated = 1;
/* Send switch change to the device
* Link for channels 1-2 is at index 1
* No device yet has more than 2 channels linked
*/
err = scarlett2_usb_set_config(
mixer, SCARLETT2_CONFIG_INPUT_LINK_SWITCH, index + 1, val);
if (err == 0)
err = 1;
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
static const struct snd_kcontrol_new scarlett2_input_link_ctl = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "",
.info = scarlett2_autogain_disables_ctl_info,
.get = scarlett2_input_link_ctl_get,
.put = scarlett2_input_link_ctl_put
};
/*** Input Gain Controls ***/
static int scarlett2_update_input_gain(struct usb_mixer_interface *mixer)
{
struct scarlett2_data *private = mixer->private_data;
const struct scarlett2_device_info *info = private->info;
private->input_gain_updated = 0;
if (!info->gain_input_count)
return 0;
return scarlett2_usb_get_config(
mixer, SCARLETT2_CONFIG_INPUT_GAIN,
info->gain_input_count, private->gain);
}
static int scarlett2_input_gain_ctl_info(struct snd_kcontrol *kctl,
struct snd_ctl_elem_info *uinfo)
{
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 err;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
err = scarlett2_check_autogain_updated(mixer);
if (err < 0)
goto unlock;
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = elem->channels;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = SCARLETT2_MAX_GAIN_VALUE;
uinfo->value.integer.step = 1;
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
static int scarlett2_input_gain_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 err = 0;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
if (private->input_gain_updated) {
err = scarlett2_update_input_gain(mixer);
if (err < 0)
goto unlock;
}
ucontrol->value.integer.value[0] =
private->gain[elem->control];
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
static int scarlett2_input_gain_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;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
err = scarlett2_check_put_during_autogain(mixer);
if (err < 0)
goto unlock;
oval = private->gain[index];
val = ucontrol->value.integer.value[0];
if (oval == val)
goto unlock;
private->gain[index] = val;
/* Send gain change to the device */
err = scarlett2_usb_set_config(mixer, SCARLETT2_CONFIG_INPUT_GAIN,
index, val);
if (err == 0)
err = 1;
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
static const DECLARE_TLV_DB_MINMAX(
db_scale_scarlett2_gain, 0, SCARLETT2_MAX_GAIN_DB * 100
);
static const struct snd_kcontrol_new scarlett2_input_gain_ctl = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
SNDRV_CTL_ELEM_ACCESS_TLV_READ,
.name = "",
.info = scarlett2_input_gain_ctl_info,
.get = scarlett2_input_gain_ctl_get,
.put = scarlett2_input_gain_ctl_put,
.private_value = 0, /* max value */
.tlv = { .p = db_scale_scarlett2_gain }
};
/*** Safe Controls ***/
static int scarlett2_update_input_safe(struct usb_mixer_interface *mixer)
{
struct scarlett2_data *private = mixer->private_data;
const struct scarlett2_device_info *info = private->info;
private->input_safe_updated = 0;
if (!info->gain_input_count)
return 0;
return scarlett2_usb_get_config(
mixer, SCARLETT2_CONFIG_SAFE_SWITCH,
info->gain_input_count, private->safe_switch);
}
static int scarlett2_safe_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 err = 0;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
if (private->input_safe_updated) {
err = scarlett2_update_input_safe(mixer);
if (err < 0)
goto unlock;
}
ucontrol->value.integer.value[0] =
private->safe_switch[elem->control];
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
static int scarlett2_safe_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;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
err = scarlett2_check_put_during_autogain(mixer);
if (err < 0)
goto unlock;
oval = private->safe_switch[index];
val = !!ucontrol->value.integer.value[0];
if (oval == val)
goto unlock;
private->safe_switch[index] = val;
/* Send switch change to the device */
err = scarlett2_usb_set_config(mixer, SCARLETT2_CONFIG_SAFE_SWITCH,
index, val);
if (err == 0)
err = 1;
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
static const struct snd_kcontrol_new scarlett2_safe_ctl = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "",
.info = scarlett2_autogain_disables_ctl_info,
.get = scarlett2_safe_ctl_get,
.put = scarlett2_safe_ctl_put,
};
/*** PCM Input Control ***/
static int scarlett2_update_pcm_input_switch(struct usb_mixer_interface *mixer)
{
struct scarlett2_data *private = mixer->private_data;
int err;
private->pcm_input_switch_updated = 0;
err = scarlett2_usb_get_config(
mixer, SCARLETT2_CONFIG_PCM_INPUT_SWITCH,
1, &private->pcm_input_switch);
if (err < 0)
return err;
return 0;
}
static int scarlett2_pcm_input_switch_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;
int err = 0;
mutex_lock(&private->data_mutex);
if (private->pcm_input_switch_updated) {
err = scarlett2_update_pcm_input_switch(mixer);
if (err < 0)
goto unlock;
}
ucontrol->value.enumerated.item[0] = private->pcm_input_switch;
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
static int scarlett2_pcm_input_switch_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);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
oval = private->pcm_input_switch;
val = !!ucontrol->value.integer.value[0];
if (oval == val)
goto unlock;
private->pcm_input_switch = val;
/* Send switch change to the device */
err = scarlett2_usb_set_config(
mixer, SCARLETT2_CONFIG_PCM_INPUT_SWITCH,
0, val);
if (err == 0)
err = 1;
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
static int scarlett2_pcm_input_switch_ctl_info(
struct snd_kcontrol *kctl, struct snd_ctl_elem_info *uinfo)
{
static const char *const values[2] = {
"Direct", "Mixer"
};
return snd_ctl_enum_info(
uinfo, 1, 2, values);
}
static const struct snd_kcontrol_new scarlett2_pcm_input_switch_ctl = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "",
.info = scarlett2_pcm_input_switch_ctl_info,
.get = scarlett2_pcm_input_switch_ctl_get,
.put = scarlett2_pcm_input_switch_ctl_put
};
/*** 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;
s16 vol;
int err, i;
private->vol_updated = 0;
if (scarlett2_has_config_item(private,
SCARLETT2_CONFIG_MASTER_VOLUME)) {
err = scarlett2_usb_get_config(
mixer, SCARLETT2_CONFIG_MASTER_VOLUME,
1, &vol);
if (err < 0)
return err;
private->master_vol = clamp(vol + SCARLETT2_VOLUME_BIAS,
0, SCARLETT2_VOLUME_BIAS);
if (scarlett2_has_config_item(private,
SCARLETT2_CONFIG_SW_HW_SWITCH))
for (i = 0; i < private->num_line_out; i++)
if (private->vol_sw_hw_switch[i])
private->vol[i] = private->master_vol;
}
if (scarlett2_has_config_item(private,
SCARLETT2_CONFIG_HEADPHONE_VOLUME)) {
err = scarlett2_usb_get_config(
mixer, SCARLETT2_CONFIG_HEADPHONE_VOLUME,
1, &vol);
if (err < 0)
return err;
private->headphone_vol = clamp(vol + SCARLETT2_VOLUME_BIAS,
0, SCARLETT2_VOLUME_BIAS);
}
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;
int err = 0;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
if (private->vol_updated) {
err = scarlett2_update_volumes(mixer);
if (err < 0)
goto unlock;
}
ucontrol->value.integer.value[0] = private->master_vol;
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
static int scarlett2_headphone_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 err = 0;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
if (private->vol_updated) {
err = scarlett2_update_volumes(mixer);
if (err < 0)
goto unlock;
}
ucontrol->value.integer.value[0] = private->headphone_vol;
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
static int line_out_remap(struct scarlett2_data *private, int index)
{
const struct scarlett2_device_info *info = private->info;
if (!info->line_out_remap_enable)
return index;
if (index >= private->num_line_out)
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);
int err = 0;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
if (private->vol_updated) {
err = scarlett2_update_volumes(mixer);
if (err < 0)
goto unlock;
}
ucontrol->value.integer.value[0] = private->vol[index];
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
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);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
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_volume, -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_volume }
};
static const struct snd_kcontrol_new scarlett2_headphone_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_headphone_volume_ctl_get,
.private_value = 0, /* max value */
.tlv = { .p = db_scale_scarlett2_volume }
};
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_volume }
};
/*** Mute Switch Controls ***/
static int scarlett2_update_dim_mute(struct usb_mixer_interface *mixer)
{
struct scarlett2_data *private = mixer->private_data;
int err, i;
u8 mute;
private->dim_mute_updated = 0;
if (!scarlett2_has_config_item(private, SCARLETT2_CONFIG_SW_HW_SWITCH))
return 0;
err = scarlett2_usb_get_config(
mixer, SCARLETT2_CONFIG_DIM_MUTE,
SCARLETT2_DIM_MUTE_COUNT, private->dim_mute);
if (err < 0)
return err;
for (i = 0; i < SCARLETT2_DIM_MUTE_COUNT; i++)
private->dim_mute[i] = !!private->dim_mute[i];
mute = private->dim_mute[SCARLETT2_BUTTON_MUTE];
for (i = 0; i < private->num_line_out; i++)
if (private->vol_sw_hw_switch[i])
private->mute_switch[i] = mute;
return 0;
}
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);
int err = 0;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
if (private->dim_mute_updated) {
err = scarlett2_update_dim_mute(mixer);
if (err < 0)
goto unlock;
}
ucontrol->value.integer.value[0] = private->mute_switch[index];
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
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);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
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);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
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_level(struct usb_mixer_interface *mixer)
{
struct scarlett2_data *private = mixer->private_data;
const struct scarlett2_device_info *info = private->info;
private->input_level_updated = 0;
if (!info->level_input_count)
return 0;
return scarlett2_usb_get_config(
mixer, SCARLETT2_CONFIG_LEVEL_SWITCH,
info->level_input_count + info->level_input_first,
private->level_switch);
}
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"
};
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 err;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
err = scarlett2_check_autogain_updated(mixer);
if (err < 0)
goto unlock;
err = snd_ctl_enum_info(uinfo, 1, 2, values);
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
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;
int err = 0;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
if (private->input_level_updated) {
err = scarlett2_update_input_level(mixer);
if (err < 0)
goto unlock;
}
ucontrol->value.enumerated.item[0] = scarlett2_decode_muteable(
private->level_switch[index]);
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
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;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
err = scarlett2_check_put_during_autogain(mixer);
if (err < 0)
goto unlock;
oval = private->level_switch[index];
val = !!ucontrol->value.enumerated.item[0];
if (oval == val)
goto unlock;
private->level_switch[index] = val;
/* To set the Gen 4 muteable controls, bit 1 gets set instead */
if (private->config_set->items[SCARLETT2_CONFIG_LEVEL_SWITCH].mute)
val = (!val) | 0x02;
/* 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_update_input_pad(struct usb_mixer_interface *mixer)
{
struct scarlett2_data *private = mixer->private_data;
const struct scarlett2_device_info *info = private->info;
private->input_pad_updated = 0;
if (!info->pad_input_count)
return 0;
return scarlett2_usb_get_config(
mixer, SCARLETT2_CONFIG_PAD_SWITCH,
info->pad_input_count, private->pad_switch);
}
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;
int err = 0;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
if (private->input_pad_updated) {
err = scarlett2_update_input_pad(mixer);
if (err < 0)
goto unlock;
}
ucontrol->value.integer.value[0] =
private->pad_switch[elem->control];
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
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);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
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_update_input_air(struct usb_mixer_interface *mixer)
{
struct scarlett2_data *private = mixer->private_data;
const struct scarlett2_device_info *info = private->info;
private->input_air_updated = 0;
if (!info->air_input_count)
return 0;
return scarlett2_usb_get_config(
mixer, SCARLETT2_CONFIG_AIR_SWITCH,
info->air_input_count, private->air_switch);
}
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;
int err = 0;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
if (private->input_air_updated) {
err = scarlett2_update_input_air(mixer);
if (err < 0)
goto unlock;
}
ucontrol->value.integer.value[0] = private->air_switch[elem->control];
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
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;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
err = scarlett2_check_put_during_autogain(mixer);
if (err < 0)
goto unlock;
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 int scarlett2_air_with_drive_ctl_info(
struct snd_kcontrol *kctl, struct snd_ctl_elem_info *uinfo)
{
static const char *const values[3] = {
"Off", "Presence", "Presence + Drive"
};
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 err;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
err = scarlett2_check_autogain_updated(mixer);
if (err < 0)
goto unlock;
err = snd_ctl_enum_info(uinfo, 1, 3, values);
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
static const struct snd_kcontrol_new scarlett2_air_ctl[2] = {
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "",
.info = snd_ctl_boolean_mono_info,
.get = scarlett2_air_ctl_get,
.put = scarlett2_air_ctl_put,
},
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "",
.info = scarlett2_air_with_drive_ctl_info,
.get = scarlett2_air_ctl_get,
.put = scarlett2_air_ctl_put,
}
};
/*** Phantom Switch Controls ***/
static int scarlett2_update_input_phantom(struct usb_mixer_interface *mixer)
{
struct scarlett2_data *private = mixer->private_data;
const struct scarlett2_device_info *info = private->info;
int err;
private->input_phantom_updated = 0;
if (!info->phantom_count)
return 0;
err = scarlett2_usb_get_config(
mixer, SCARLETT2_CONFIG_PHANTOM_SWITCH,
info->phantom_count, private->phantom_switch);
if (err < 0)
return err;
if (scarlett2_has_config_item(private,
SCARLETT2_CONFIG_PHANTOM_PERSISTENCE)) {
err = scarlett2_usb_get_config(
mixer, SCARLETT2_CONFIG_PHANTOM_PERSISTENCE,
1, &private->phantom_persistence);
if (err < 0)
return err;
}
return 0;
}
/* Check if phantom power on the given input is currently changing state */
static int scarlett2_phantom_is_switching(
struct scarlett2_data *private, int line_num)
{
const struct scarlett2_device_info *info = private->info;
int index = line_num / info->inputs_per_phantom;
return !!(private->phantom_switch[index] & 0x02);
}
/* Update autogain controls' access mode when phantom power changes state */
static void scarlett2_phantom_update_access(struct usb_mixer_interface *mixer)
{
struct scarlett2_data *private = mixer->private_data;
const struct scarlett2_device_info *info = private->info;
int i;
/* Disable autogain controls if phantom power is changing state */
for (i = 0; i < info->gain_input_count; i++) {
int val = !scarlett2_phantom_is_switching(private, i);
scarlett2_set_ctl_access(private->autogain_ctls[i], val);
}
}
/* Notify of access mode change for autogain which can't be enabled
* while phantom power is changing.
*/
static void scarlett2_phantom_notify_access(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;
for (i = 0; i < info->gain_input_count; i++)
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_INFO,
&private->autogain_ctls[i]->id);
}
/* Call scarlett2_update_input_phantom() and
* scarlett2_phantom_update_access() if input_phantom_updated is set.
*/
static int scarlett2_check_input_phantom_updated(
struct usb_mixer_interface *mixer)
{
struct scarlett2_data *private = mixer->private_data;
int err;
if (!private->input_phantom_updated)
return 0;
err = scarlett2_update_input_phantom(mixer);
if (err < 0)
return err;
scarlett2_phantom_update_access(mixer);
return 0;
}
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;
int err;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
err = scarlett2_check_input_phantom_updated(mixer);
if (err < 0)
goto unlock;
ucontrol->value.integer.value[0] = scarlett2_decode_muteable(
private->phantom_switch[elem->control]);
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
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;
const struct scarlett2_device_info *info = private->info;
int index = elem->control;
int oval, val, err;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
err = scarlett2_check_put_during_autogain(mixer);
if (err < 0)
goto unlock;
oval = private->phantom_switch[index];
val = !!ucontrol->value.integer.value[0];
if (oval == val)
goto unlock;
private->phantom_switch[index] = val;
/* To set the Gen 4 muteable controls, bit 1 gets set */
if (private->config_set->items[SCARLETT2_CONFIG_PHANTOM_SWITCH].mute)
val = (!val) | 0x02;
/* Send switch change to the device */
err = scarlett2_usb_set_config(mixer, SCARLETT2_CONFIG_PHANTOM_SWITCH,
index + info->phantom_first, val);
if (err == 0)
err = 1;
scarlett2_phantom_update_access(mixer);
scarlett2_phantom_notify_access(mixer);
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 = scarlett2_autogain_disables_ctl_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);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
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,
};
/*** Speaker Switching 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 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) {
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 < private->num_mix_out; i++, bitmap >>= 1)
private->talkback_map[i] = bitmap & 1;
}
return 0;
}
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;
int err = 0;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
if (private->monitor_other_updated) {
err = scarlett2_update_monitor_other(mixer);
if (err < 0)
goto unlock;
}
ucontrol->value.enumerated.item[0] = private->speaker_switching_switch;
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
/* 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);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
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;
int err = 0;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
if (private->monitor_other_updated) {
err = scarlett2_update_monitor_other(mixer);
if (err < 0)
goto unlock;
}
ucontrol->value.enumerated.item[0] = private->talkback_switch;
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
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);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
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;
int index = elem->control;
int oval, val, err = 0, i;
u16 bitmap = 0;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
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 < private->num_mix_out; 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;
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 < private->num_mix_out; 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;
int err = 0;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
if (private->dim_mute_updated) {
err = scarlett2_update_dim_mute(mixer);
if (err < 0)
goto unlock;
}
ucontrol->value.integer.value[0] = private->dim_mute[elem->control];
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
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;
int index = elem->control;
int oval, val, err = 0, i;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
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 < private->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;
int err, i;
char s[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
/* Add R/O HW volume control */
if (scarlett2_has_config_item(private,
SCARLETT2_CONFIG_MASTER_VOLUME)) {
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 R/O headphone volume control */
if (scarlett2_has_config_item(private,
SCARLETT2_CONFIG_HEADPHONE_VOLUME)) {
snprintf(s, sizeof(s), "Headphone Playback Volume");
err = scarlett2_add_new_ctl(mixer,
&scarlett2_headphone_volume_ctl,
0, 1, s,
&private->headphone_vol_ctl);
if (err < 0)
return err;
}
/* Remaining controls are only applicable if the device
* has per-channel line-out volume controls.
*/
if (!scarlett2_has_config_item(private,
SCARLETT2_CONFIG_LINE_OUT_VOLUME))
return 0;
/* Add volume controls */
for (i = 0; i < private->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;
/* SW/HW Switch */
if (scarlett2_has_config_item(private,
SCARLETT2_CONFIG_SW_HW_SWITCH)) {
/* 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);
scnprintf(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 (scarlett2_has_config_item(private, SCARLETT2_CONFIG_DIM_MUTE))
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++) {
scnprintf(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++) {
scnprintf(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++) {
scnprintf(s, sizeof(s), fmt, i + 1 + info->air_input_first,
"Air", info->air_option ? "Enum" : "Switch");
err = scarlett2_add_new_ctl(
mixer, &scarlett2_air_ctl[info->air_option],
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 + info->phantom_first,
"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 &&
scarlett2_has_config_item(private,
SCARLETT2_CONFIG_PHANTOM_PERSISTENCE)) {
err = scarlett2_add_new_ctl(
mixer, &scarlett2_phantom_persistence_ctl, 0, 1,
"Phantom Power Persistence Capture Switch", NULL);
if (err < 0)
return err;
}
/* Add software-controllable input gain controls */
if (info->gain_input_count) {
err = scarlett2_add_new_ctl(
mixer, &scarlett2_input_select_ctl, 0, 1,
"Input Select Capture Enum",
&private->input_select_ctl);
if (err < 0)
return err;
for (i = 0; i < info->gain_input_count; i++) {
if (i % 2) {
scnprintf(s, sizeof(s),
"Line In %d-%d Link Capture Switch",
i, i + 1);
err = scarlett2_add_new_ctl(
mixer, &scarlett2_input_link_ctl,
i / 2, 1, s,
&private->input_link_ctls[i / 2]);
if (err < 0)
return err;
}
scnprintf(s, sizeof(s), fmt, i + 1,
"Gain", "Volume");
err = scarlett2_add_new_ctl(
mixer, &scarlett2_input_gain_ctl,
i, 1, s, &private->input_gain_ctls[i]);
if (err < 0)
return err;
scnprintf(s, sizeof(s), fmt, i + 1,
"Autogain", "Switch");
err = scarlett2_add_new_ctl(
mixer, &scarlett2_autogain_switch_ctl,
i, 1, s, &private->autogain_ctls[i]);
if (err < 0)
return err;
scnprintf(s, sizeof(s), fmt, i + 1,
"Autogain Status", "Enum");
err = scarlett2_add_new_ctl(
mixer, &scarlett2_autogain_status_ctl,
i, 1, s, &private->autogain_status_ctls[i]);
scnprintf(s, sizeof(s), fmt, i + 1,
"Safe", "Switch");
err = scarlett2_add_new_ctl(
mixer, &scarlett2_safe_ctl,
i, 1, s, &private->safe_ctls[i]);
if (err < 0)
return err;
}
}
/* Add PCM Input Switch control */
if (scarlett2_has_config_item(private,
SCARLETT2_CONFIG_PCM_INPUT_SWITCH)) {
err = scarlett2_add_new_ctl(
mixer, &scarlett2_pcm_input_switch_ctl, 0, 1,
"PCM Input Capture Switch",
&private->pcm_input_switch_ctl);
if (err < 0)
return err;
}
return 0;
}
/*** Mixer Volume Controls ***/
static int scarlett2_update_mix(struct usb_mixer_interface *mixer)
{
struct scarlett2_data *private = mixer->private_data;
int i, err;
private->mix_updated = 0;
for (i = 0; i < private->num_mix_out; i++) {
err = scarlett2_usb_get_mix(mixer, i);
if (err < 0)
return err;
}
return 1;
}
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 usb_mixer_interface *mixer = elem->head.mixer;
struct scarlett2_data *private = mixer->private_data;
int err = 0;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
if (private->mix_updated) {
err = scarlett2_update_mix(mixer);
if (err < 0)
goto unlock;
}
ucontrol->value.integer.value[0] = private->mix[elem->control];
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
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;
int oval, val, mix_num, err = 0;
int index = elem->control;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
oval = private->mix[index];
val = clamp(ucontrol->value.integer.value[0],
0L, (long)SCARLETT2_MIXER_MAX_VALUE);
mix_num = index / private->num_mix_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;
int err, i, j;
int index;
char s[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
for (i = 0, index = 0; i < private->num_mix_out; i++)
for (j = 0; j < private->num_mix_in; 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,
&private->mix_ctls[index]);
if (err < 0)
return err;
}
return 0;
}
/*** Direct Monitor Control ***/
static int scarlett2_update_direct_monitor(struct usb_mixer_interface *mixer)
{
struct scarlett2_data *private = mixer->private_data;
private->direct_monitor_updated = 0;
if (!private->info->direct_monitor)
return 0;
return scarlett2_usb_get_config(
mixer, SCARLETT2_CONFIG_DIRECT_MONITOR,
1, &private->direct_monitor_switch);
}
static int scarlett2_update_monitor_mix(struct usb_mixer_interface *mixer)
{
struct scarlett2_data *private = mixer->private_data;
int err, i;
u16 mix_values[SCARLETT2_MONITOR_MIX_MAX];
if (!private->num_monitor_mix_ctls)
return 0;
err = scarlett2_usb_get_config(
mixer, SCARLETT2_CONFIG_DIRECT_MONITOR_GAIN,
private->num_monitor_mix_ctls, mix_values);
if (err < 0)
return err;
for (i = 0; i < private->num_monitor_mix_ctls; i++)
private->monitor_mix[i] = scarlett2_mixer_value_to_db(
mix_values[i]);
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 = mixer->private_data;
int err = 0;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
if (private->direct_monitor_updated) {
err = scarlett2_update_direct_monitor(mixer);
if (err < 0)
goto unlock;
}
ucontrol->value.enumerated.item[0] = private->direct_monitor_switch;
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
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);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
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_monitor_mix_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->monitor_mix[elem->control];
return 0;
}
static int scarlett2_monitor_mix_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;
int index = elem->control;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
oval = private->monitor_mix[index];
val = clamp(ucontrol->value.integer.value[0],
0L, (long)SCARLETT2_MIXER_MAX_VALUE);
if (oval == val)
goto unlock;
private->monitor_mix[index] = val;
err = scarlett2_usb_set_config(
mixer, SCARLETT2_CONFIG_DIRECT_MONITOR_GAIN,
index, scarlett2_mixer_values[val]);
if (err == 0)
err = 1;
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
static const struct snd_kcontrol_new scarlett2_monitor_mix_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_monitor_mix_ctl_get,
.put = scarlett2_monitor_mix_ctl_put,
.private_value = SCARLETT2_MIXER_MAX_DB, /* max value */
.tlv = { .p = db_scale_scarlett2_mixer }
};
static int scarlett2_add_direct_monitor_ctls(struct usb_mixer_interface *mixer)
{
struct scarlett2_data *private = mixer->private_data;
const struct scarlett2_device_info *info = private->info;
const char *s;
int err, i, j, k, index;
if (!info->direct_monitor)
return 0;
s = info->direct_monitor == 1
? "Direct Monitor Playback Switch"
: "Direct Monitor Playback Enum";
err = scarlett2_add_new_ctl(
mixer, &scarlett2_direct_monitor_ctl[info->direct_monitor - 1],
0, 1, s, &private->direct_monitor_ctl);
if (err < 0)
return err;
if (!private->num_monitor_mix_ctls)
return 0;
/* 1 or 2 direct monitor selections (Mono & Stereo) */
for (i = 0, index = 0; i < info->direct_monitor; i++) {
const char * const format =
"Monitor %sMix %c Input %02d Playback Volume";
const char *mix_type;
if (info->direct_monitor == 1)
mix_type = "";
else if (i == 0)
mix_type = "1 ";
else
mix_type = "2 ";
/* 2 Mix outputs, A/Left & B/Right */
for (j = 0; j < 2; j++)
/* Mix inputs */
for (k = 0; k < private->num_mix_in; k++, index++) {
char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
scnprintf(name, sizeof(name), format,
mix_type, 'A' + j, k + 1);
err = scarlett2_add_new_ctl(
mixer, &scarlett2_monitor_mix_ctl,
index, 1, name, 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];
if (port_type == SCARLETT2_PORT_TYPE_MIX &&
item >= private->num_mix_out)
sprintf(uinfo->value.enumerated.name,
port->dsp_src_descr,
item - private->num_mix_out + 1);
else
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);
int err = 0;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
if (private->mux_updated) {
err = scarlett2_usb_get_mux(mixer);
if (err < 0)
goto unlock;
}
ucontrol->value.enumerated.item[0] = private->mux[index];
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
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);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
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];
int channel_num = channel + 1;
const struct scarlett2_port *port =
&scarlett2_ports[port_type];
const char *descr = port->dst_descr;
if (port_type == SCARLETT2_PORT_TYPE_MIX &&
channel >= private->num_mix_in) {
channel_num -= private->num_mix_in;
descr = port->dsp_dst_descr;
}
snprintf(s, sizeof(s) - 5, descr, channel_num);
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 usb_mixer_interface *mixer = elem->head.mixer;
struct scarlett2_data *private = mixer->private_data;
u8 *meter_level_map = private->meter_level_map;
u16 meter_levels[SCARLETT2_MAX_METERS];
int i, err;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
err = scarlett2_usb_get_meter_levels(mixer, elem->channels,
meter_levels);
if (err < 0)
goto unlock;
/* 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;
}
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
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 (!scarlett2_has_mixer(private))
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);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
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;
if (!scarlett2_has_config_item(private, SCARLETT2_CONFIG_MSD_SWITCH))
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);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
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 (!scarlett2_has_config_item(private,
SCARLETT2_CONFIG_STANDALONE_SWITCH))
return 0;
/* Add standalone control */
return scarlett2_add_new_ctl(mixer, &scarlett2_standalone_ctl,
0, 1, "Standalone Switch", NULL);
}
/*** Power Status ***/
static int scarlett2_update_power_status(struct usb_mixer_interface *mixer)
{
struct scarlett2_data *private = mixer->private_data;
int err;
u8 power_ext, power_low;
private->power_status_updated = 0;
err = scarlett2_usb_get_config(mixer, SCARLETT2_CONFIG_POWER_EXT,
1, &power_ext);
if (err < 0)
return err;
err = scarlett2_usb_get_config(mixer, SCARLETT2_CONFIG_POWER_LOW,
1, &power_low);
if (err < 0)
return err;
if (power_low)
private->power_status = SCARLETT2_POWER_STATUS_FAIL;
else if (power_ext)
private->power_status = SCARLETT2_POWER_STATUS_EXT;
else
private->power_status = SCARLETT2_POWER_STATUS_BUS;
return 0;
}
static int scarlett2_power_status_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 err = 0;
mutex_lock(&private->data_mutex);
if (private->power_status_updated) {
err = scarlett2_update_power_status(mixer);
if (err < 0)
goto unlock;
}
ucontrol->value.integer.value[0] = private->power_status;
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
static int scarlett2_power_status_ctl_info(
struct snd_kcontrol *kctl, struct snd_ctl_elem_info *uinfo)
{
static const char *const values[3] = {
"External", "Bus", "Fail"
};
return snd_ctl_enum_info(uinfo, 1, 3, values);
}
static const struct snd_kcontrol_new scarlett2_power_status_ctl = {
.iface = SNDRV_CTL_ELEM_IFACE_CARD,
.access = SNDRV_CTL_ELEM_ACCESS_READ,
.name = "",
.info = scarlett2_power_status_ctl_info,
.get = scarlett2_power_status_ctl_get,
};
static int scarlett2_add_power_status_ctl(struct usb_mixer_interface *mixer)
{
struct scarlett2_data *private = mixer->private_data;
if (!scarlett2_has_config_item(private,
SCARLETT2_CONFIG_POWER_EXT))
return 0;
/* Add power status control */
return scarlett2_add_new_ctl(mixer, &scarlett2_power_status_ctl,
0, 1, "Power Status Card Enum",
&private->power_status_ctl);
}
/*** 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_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;
/* Count the number of mux sources and destinations */
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;
/* Mixer inputs are mux outputs and vice versa.
* Scarlett Gen 4 DSP I/O uses SCARLETT2_PORT_TYPE_MIX but
* doesn't have mixer controls.
*/
private->num_mix_in =
port_count[SCARLETT2_PORT_TYPE_MIX][SCARLETT2_PORT_OUT] -
info->dsp_count;
private->num_mix_out =
port_count[SCARLETT2_PORT_TYPE_MIX][SCARLETT2_PORT_IN] -
info->dsp_count;
/* Number of analogue line outputs */
private->num_line_out =
port_count[SCARLETT2_PORT_TYPE_ANALOGUE][SCARLETT2_PORT_OUT];
/* Number of monitor mix controls */
private->num_monitor_mix_ctls =
info->direct_monitor * 2 * private->num_mix_in;
}
/* 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->config_set = entry->info->config_set;
private->series_name = entry->series_name;
scarlett2_count_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;
}
/* Get the flash segment numbers for the App_Settings and App_Upgrade
* segments and put them in the private data
*/
static int scarlett2_get_flash_segment_nums(struct usb_mixer_interface *mixer)
{
struct scarlett2_data *private = mixer->private_data;
int err, count, i;
struct {
__le32 size;
__le32 count;
u8 unknown[8];
} __packed flash_info;
struct {
__le32 size;
__le32 flags;
char name[16];
} __packed segment_info;
err = scarlett2_usb(mixer, SCARLETT2_USB_INFO_FLASH,
NULL, 0,
&flash_info, sizeof(flash_info));
if (err < 0)
return err;
count = le32_to_cpu(flash_info.count);
/* sanity check count */
if (count < SCARLETT2_SEGMENT_NUM_MIN ||
count > SCARLETT2_SEGMENT_NUM_MAX + 1) {
usb_audio_err(mixer->chip,
"invalid flash segment count: %d\n", count);
return -EINVAL;
}
for (i = 0; i < count; i++) {
__le32 segment_num_req = cpu_to_le32(i);
int flash_segment_id;
err = scarlett2_usb(mixer, SCARLETT2_USB_INFO_SEGMENT,
&segment_num_req, sizeof(segment_num_req),
&segment_info, sizeof(segment_info));
if (err < 0) {
usb_audio_err(mixer->chip,
"failed to get flash segment info %d: %d\n",
i, err);
return err;
}
if (!strncmp(segment_info.name,
SCARLETT2_SEGMENT_SETTINGS_NAME, 16))
flash_segment_id = SCARLETT2_SEGMENT_ID_SETTINGS;
else if (!strncmp(segment_info.name,
SCARLETT2_SEGMENT_FIRMWARE_NAME, 16))
flash_segment_id = SCARLETT2_SEGMENT_ID_FIRMWARE;
else
continue;
private->flash_segment_nums[flash_segment_id] = i;
private->flash_segment_blocks[flash_segment_id] =
le32_to_cpu(segment_info.size) /
SCARLETT2_FLASH_BLOCK_SIZE;
}
/* segment 0 is App_Gold and we never want to touch that, so
* use 0 as the "not-found" value
*/
if (!private->flash_segment_nums[SCARLETT2_SEGMENT_ID_SETTINGS]) {
usb_audio_err(mixer->chip,
"failed to find flash segment %s\n",
SCARLETT2_SEGMENT_SETTINGS_NAME);
return -EINVAL;
}
if (!private->flash_segment_nums[SCARLETT2_SEGMENT_ID_FIRMWARE]) {
usb_audio_err(mixer->chip,
"failed to find flash segment %s\n",
SCARLETT2_SEGMENT_FIRMWARE_NAME);
return -EINVAL;
}
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;
int err, i;
if (scarlett2_has_config_item(private, SCARLETT2_CONFIG_MSD_SWITCH)) {
err = scarlett2_usb_get_config(
mixer, SCARLETT2_CONFIG_MSD_SWITCH,
1, &private->msd_switch);
if (err < 0)
return err;
}
if (private->firmware_version < info->min_firmware_version) {
usb_audio_err(mixer->chip,
"Focusrite %s firmware version %d is too old; "
"need %d",
private->series_name,
private->firmware_version,
info->min_firmware_version);
return 0;
}
/* no other controls are created if MSD mode is on */
if (private->msd_switch)
return 0;
err = scarlett2_update_input_level(mixer);
if (err < 0)
return err;
err = scarlett2_update_input_pad(mixer);
if (err < 0)
return err;
err = scarlett2_update_input_air(mixer);
if (err < 0)
return err;
err = scarlett2_update_input_phantom(mixer);
if (err < 0)
return err;
err = scarlett2_update_direct_monitor(mixer);
if (err < 0)
return err;
/* the rest of the configuration is for devices with a mixer */
if (!scarlett2_has_mixer(private))
return 0;
err = scarlett2_update_monitor_mix(mixer);
if (err < 0)
return err;
err = scarlett2_update_monitor_other(mixer);
if (err < 0)
return err;
if (scarlett2_has_config_item(private,
SCARLETT2_CONFIG_STANDALONE_SWITCH)) {
err = scarlett2_usb_get_config(
mixer, SCARLETT2_CONFIG_STANDALONE_SWITCH,
1, &private->standalone_switch);
if (err < 0)
return err;
}
if (scarlett2_has_config_item(private,
SCARLETT2_CONFIG_POWER_EXT)) {
err = scarlett2_update_power_status(mixer);
if (err < 0)
return err;
}
err = scarlett2_update_sync(mixer);
if (err < 0)
return err;
if (scarlett2_has_config_item(private,
SCARLETT2_CONFIG_LINE_OUT_VOLUME)) {
s16 sw_vol[SCARLETT2_ANALOGUE_MAX];
/* read SW line out volume */
err = scarlett2_usb_get_config(
mixer, SCARLETT2_CONFIG_LINE_OUT_VOLUME,
private->num_line_out, &sw_vol);
if (err < 0)
return err;
for (i = 0; i < private->num_line_out; i++)
private->vol[i] = clamp(
sw_vol[i] + SCARLETT2_VOLUME_BIAS,
0, SCARLETT2_VOLUME_BIAS);
/* read SW mute */
err = scarlett2_usb_get_config(
mixer, SCARLETT2_CONFIG_MUTE_SWITCH,
private->num_line_out, &private->mute_switch);
if (err < 0)
return err;
for (i = 0; i < private->num_line_out; i++)
private->mute_switch[i] =
!!private->mute_switch[i];
/* read SW/HW switches */
if (scarlett2_has_config_item(private,
SCARLETT2_CONFIG_SW_HW_SWITCH)) {
err = scarlett2_usb_get_config(
mixer, SCARLETT2_CONFIG_SW_HW_SWITCH,
private->num_line_out,
&private->vol_sw_hw_switch);
if (err < 0)
return err;
for (i = 0; i < private->num_line_out; i++)
private->vol_sw_hw_switch[i] =
!!private->vol_sw_hw_switch[i];
}
}
err = scarlett2_update_volumes(mixer);
if (err < 0)
return err;
err = scarlett2_update_dim_mute(mixer);
if (err < 0)
return err;
err = scarlett2_update_input_select(mixer);
if (err < 0)
return err;
err = scarlett2_update_input_gain(mixer);
if (err < 0)
return err;
err = scarlett2_update_autogain(mixer);
if (err < 0)
return err;
err = scarlett2_update_input_safe(mixer);
if (err < 0)
return err;
if (scarlett2_has_config_item(private,
SCARLETT2_CONFIG_PCM_INPUT_SWITCH)) {
err = scarlett2_update_pcm_input_switch(mixer);
if (err < 0)
return err;
}
err = scarlett2_update_mix(mixer);
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 (Gen 2/3) */
static void scarlett2_notify_monitor(struct usb_mixer_interface *mixer)
{
struct snd_card *card = mixer->chip->card;
struct scarlett2_data *private = mixer->private_data;
int i;
if (!scarlett2_has_config_item(private, SCARLETT2_CONFIG_SW_HW_SWITCH))
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 < private->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 volume change (Gen 4) */
static void scarlett2_notify_volume(struct usb_mixer_interface *mixer)
{
struct scarlett2_data *private = mixer->private_data;
private->vol_updated = 1;
snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
&private->master_vol_ctl->id);
snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
&private->headphone_vol_ctl->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;
int i;
if (!scarlett2_has_config_item(private, SCARLETT2_CONFIG_SW_HW_SWITCH))
return;
private->dim_mute_updated = 1;
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 < private->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 level switch change */
static void scarlett2_notify_input_level(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_level_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);
}
/* Notify on input pad switch change */
static void scarlett2_notify_input_pad(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_pad_updated = 1;
for (i = 0; i < info->pad_input_count; i++)
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
&private->pad_ctls[i]->id);
}
/* Notify on input air switch change */
static void scarlett2_notify_input_air(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_air_updated = 1;
for (i = 0; i < info->air_input_count; i++)
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
&private->air_ctls[i]->id);
}
/* Notify on input phantom switch change */
static void scarlett2_notify_input_phantom(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_phantom_updated = 1;
for (i = 0; i < info->phantom_count; i++)
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
&private->phantom_ctls[i]->id);
scarlett2_phantom_notify_access(mixer);
}
/* Notify on "input other" change (level/pad/air/phantom) */
static void scarlett2_notify_input_other(struct usb_mixer_interface *mixer)
{
scarlett2_notify_input_level(mixer);
scarlett2_notify_input_pad(mixer);
scarlett2_notify_input_air(mixer);
scarlett2_notify_input_phantom(mixer);
}
/* Notify on input select change */
static void scarlett2_notify_input_select(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;
if (!info->gain_input_count)
return;
private->input_select_updated = 1;
snd_ctl_notify(card,
SNDRV_CTL_EVENT_MASK_VALUE | SNDRV_CTL_EVENT_MASK_INFO,
&private->input_select_ctl->id);
for (i = 0; i < info->gain_input_count / 2; i++)
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
&private->input_link_ctls[i]->id);
}
/* Notify on input gain change */
static void scarlett2_notify_input_gain(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;
if (!info->gain_input_count)
return;
private->input_gain_updated = 1;
for (i = 0; i < info->gain_input_count; i++)
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
&private->input_gain_ctls[i]->id);
}
/* Notify on autogain change */
static void scarlett2_notify_autogain(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;
if (!info->gain_input_count)
return;
private->autogain_updated = 1;
for (i = 0; i < info->gain_input_count; i++) {
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
&private->autogain_ctls[i]->id);
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
&private->autogain_status_ctls[i]->id);
}
scarlett2_autogain_notify_access(mixer);
}
/* Notify on input safe switch change */
static void scarlett2_notify_input_safe(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;
if (!info->gain_input_count)
return;
private->input_safe_updated = 1;
for (i = 0; i < info->gain_input_count; i++)
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
&private->safe_ctls[i]->id);
}
/* Notify on "monitor other" change (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->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);
}
}
/* Notify on direct monitor switch change */
static void scarlett2_notify_direct_monitor(struct usb_mixer_interface *mixer)
{
struct snd_card *card = mixer->chip->card;
struct scarlett2_data *private = mixer->private_data;
int count = private->num_mix_in * private->num_mix_out;
int i;
private->direct_monitor_updated = 1;
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
&private->direct_monitor_ctl->id);
if (!scarlett2_has_mixer(private))
return;
private->mix_updated = 1;
/* Notify of change to the mix controls */
for (i = 0; i < count; i++)
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
&private->mix_ctls[i]->id);
}
/* Notify on power change */
static void scarlett2_notify_power_status(struct usb_mixer_interface *mixer)
{
struct snd_card *card = mixer->chip->card;
struct scarlett2_data *private = mixer->private_data;
private->power_status_updated = 1;
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
&private->power_status_ctl->id);
}
/* Notify on mux change */
static void scarlett2_notify_mux(struct usb_mixer_interface *mixer)
{
struct snd_card *card = mixer->chip->card;
struct scarlett2_data *private = mixer->private_data;
int i;
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);
}
/* Notify on PCM input switch change */
static void scarlett2_notify_pcm_input_switch(struct usb_mixer_interface *mixer)
{
struct snd_card *card = mixer->chip->card;
struct scarlett2_data *private = mixer->private_data;
private->pcm_input_switch_updated = 1;
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
&private->pcm_input_switch_ctl->id);
scarlett2_notify_mux(mixer);
}
/* 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;
struct scarlett2_data *private = mixer->private_data;
const struct scarlett2_notification *notifications =
private->config_set->notifications;
if (ustatus != 0 || len != 8)
goto requeue;
data = le32_to_cpu(*(__le32 *)urb->transfer_buffer);
while (data && notifications->mask) {
if (data & notifications->mask) {
data &= ~notifications->mask;
if (notifications->func)
notifications->func(mixer);
}
notifications++;
}
if (data)
usb_audio_warn(mixer->chip,
"%s: Unhandled notification: 0x%08x\n",
__func__, data);
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)
{
struct scarlett2_data *private;
int err;
/* Initialise private data */
err = scarlett2_init_private(mixer, entry);
if (err < 0)
return err;
private = mixer->private_data;
/* Send proprietary USB initialisation sequence */
err = scarlett2_usb_init(mixer);
if (err < 0)
return err;
/* Get the upgrade & settings flash segment numbers */
err = scarlett2_get_flash_segment_nums(mixer);
if (err < 0)
return err;
/* Add firmware version control */
err = scarlett2_add_firmware_version_ctl(mixer);
if (err < 0)
return err;
/* Add minimum firmware version control */
err = scarlett2_add_min_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, or if the firmware version is too
* old, don't create any other controls
*/
if (private->msd_switch ||
private->firmware_version < private->info->min_firmware_version)
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(s) */
err = scarlett2_add_direct_monitor_ctls(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;
/* Create the power status control */
err = scarlett2_add_power_status_ctl(mixer);
if (err < 0)
return err;
/* Set the access mode of controls disabled during
* autogain/phantom power switching.
*/
if (private->info->gain_input_count) {
scarlett2_autogain_update_access(mixer);
scarlett2_phantom_update_access(mixer);
}
/* Set up the interrupt polling */
err = scarlett2_init_notify(mixer);
if (err < 0)
return err;
return 0;
}
/*** hwdep interface ***/
/* Set private->hwdep_in_use; prevents access to the ALSA controls
* while doing a config erase/firmware upgrade.
*/
static void scarlett2_lock(struct scarlett2_data *private)
{
mutex_lock(&private->data_mutex);
private->hwdep_in_use = 1;
mutex_unlock(&private->data_mutex);
}
/* Call SCARLETT2_USB_GET_ERASE to get the erase progress */
static int scarlett2_get_erase_progress(struct usb_mixer_interface *mixer)
{
struct scarlett2_data *private = mixer->private_data;
int segment_id, segment_num, err;
u8 erase_resp;
struct {
__le32 segment_num;
__le32 pad;
} __packed erase_req;
segment_id = private->selected_flash_segment_id;
segment_num = private->flash_segment_nums[segment_id];
if (segment_num < SCARLETT2_SEGMENT_NUM_MIN ||
segment_num > SCARLETT2_SEGMENT_NUM_MAX)
return -EFAULT;
/* Send the erase progress request */
erase_req.segment_num = cpu_to_le32(segment_num);
erase_req.pad = 0;
err = scarlett2_usb(mixer, SCARLETT2_USB_GET_ERASE,
&erase_req, sizeof(erase_req),
&erase_resp, sizeof(erase_resp));
if (err < 0)
return err;
return erase_resp;
}
/* Repeatedly call scarlett2_get_erase_progress() until it returns
* 0xff (erase complete) or we've waited 10 seconds (it usually takes
* <3 seconds).
*/
static int scarlett2_wait_for_erase(struct usb_mixer_interface *mixer)
{
int i, err;
for (i = 0; i < 100; i++) {
err = scarlett2_get_erase_progress(mixer);
if (err < 0)
return err;
if (err == 0xff)
return 0;
msleep(100);
}
return -ETIMEDOUT;
}
/* Reboot the device; wait for the erase to complete if one is in
* progress.
*/
static int scarlett2_reboot(struct usb_mixer_interface *mixer)
{
struct scarlett2_data *private = mixer->private_data;
if (private->flash_write_state ==
SCARLETT2_FLASH_WRITE_STATE_ERASING) {
int err = scarlett2_wait_for_erase(mixer);
if (err < 0)
return err;
}
return scarlett2_usb(mixer, SCARLETT2_USB_REBOOT, NULL, 0, NULL, 0);
}
/* Select a flash segment for erasing (and possibly writing to) */
static int scarlett2_ioctl_select_flash_segment(
struct usb_mixer_interface *mixer,
unsigned long arg)
{
struct scarlett2_data *private = mixer->private_data;
int segment_id, segment_num;
if (get_user(segment_id, (int __user *)arg))
return -EFAULT;
/* Check the segment ID and segment number */
if (segment_id < 0 || segment_id >= SCARLETT2_SEGMENT_ID_COUNT)
return -EINVAL;
segment_num = private->flash_segment_nums[segment_id];
if (segment_num < SCARLETT2_SEGMENT_NUM_MIN ||
segment_num > SCARLETT2_SEGMENT_NUM_MAX) {
usb_audio_err(mixer->chip,
"%s: invalid segment number %d\n",
__func__, segment_id);
return -EFAULT;
}
/* If erasing, wait for it to complete */
if (private->flash_write_state == SCARLETT2_FLASH_WRITE_STATE_ERASING) {
int err = scarlett2_wait_for_erase(mixer);
if (err < 0)
return err;
}
/* Save the selected segment ID and set the state to SELECTED */
private->selected_flash_segment_id = segment_id;
private->flash_write_state = SCARLETT2_FLASH_WRITE_STATE_SELECTED;
return 0;
}
/* Erase the previously-selected flash segment */
static int scarlett2_ioctl_erase_flash_segment(
struct usb_mixer_interface *mixer)
{
struct scarlett2_data *private = mixer->private_data;
int segment_id, segment_num, err;
struct {
__le32 segment_num;
__le32 pad;
} __packed erase_req;
if (private->flash_write_state != SCARLETT2_FLASH_WRITE_STATE_SELECTED)
return -EINVAL;
segment_id = private->selected_flash_segment_id;
segment_num = private->flash_segment_nums[segment_id];
if (segment_num < SCARLETT2_SEGMENT_NUM_MIN ||
segment_num > SCARLETT2_SEGMENT_NUM_MAX)
return -EFAULT;
/* Prevent access to ALSA controls that access the device from
* here on
*/
scarlett2_lock(private);
/* Send the erase request */
erase_req.segment_num = cpu_to_le32(segment_num);
erase_req.pad = 0;
err = scarlett2_usb(mixer, SCARLETT2_USB_ERASE_SEGMENT,
&erase_req, sizeof(erase_req),
NULL, 0);
if (err < 0)
return err;
/* On success, change the state from SELECTED to ERASING */
private->flash_write_state = SCARLETT2_FLASH_WRITE_STATE_ERASING;
return 0;
}
/* Get the erase progress from the device */
static int scarlett2_ioctl_get_erase_progress(
struct usb_mixer_interface *mixer,
unsigned long arg)
{
struct scarlett2_data *private = mixer->private_data;
struct scarlett2_flash_segment_erase_progress progress;
int segment_id, segment_num, err;
u8 erase_resp;
struct {
__le32 segment_num;
__le32 pad;
} __packed erase_req;
/* Check that we're erasing */
if (private->flash_write_state != SCARLETT2_FLASH_WRITE_STATE_ERASING)
return -EINVAL;
segment_id = private->selected_flash_segment_id;
segment_num = private->flash_segment_nums[segment_id];
if (segment_num < SCARLETT2_SEGMENT_NUM_MIN ||
segment_num > SCARLETT2_SEGMENT_NUM_MAX)
return -EFAULT;
/* Send the erase progress request */
erase_req.segment_num = cpu_to_le32(segment_num);
erase_req.pad = 0;
err = scarlett2_usb(mixer, SCARLETT2_USB_GET_ERASE,
&erase_req, sizeof(erase_req),
&erase_resp, sizeof(erase_resp));
if (err < 0)
return err;
progress.progress = erase_resp;
progress.num_blocks = private->flash_segment_blocks[segment_id];
if (copy_to_user((void __user *)arg, &progress, sizeof(progress)))
return -EFAULT;
/* If the erase is complete, change the state from ERASING to
* WRITE.
*/
if (progress.progress == 0xff)
private->flash_write_state = SCARLETT2_FLASH_WRITE_STATE_WRITE;
return 0;
}
static int scarlett2_hwdep_open(struct snd_hwdep *hw, struct file *file)
{
struct usb_mixer_interface *mixer = hw->private_data;
struct scarlett2_data *private = mixer->private_data;
/* If erasing, wait for it to complete */
if (private->flash_write_state ==
SCARLETT2_FLASH_WRITE_STATE_ERASING) {
int err = scarlett2_wait_for_erase(mixer);
if (err < 0)
return err;
}
/* Set the state to IDLE */
private->flash_write_state = SCARLETT2_FLASH_WRITE_STATE_IDLE;
return 0;
}
static int scarlett2_hwdep_ioctl(struct snd_hwdep *hw, struct file *file,
unsigned int cmd, unsigned long arg)
{
struct usb_mixer_interface *mixer = hw->private_data;
switch (cmd) {
case SCARLETT2_IOCTL_PVERSION:
return put_user(SCARLETT2_HWDEP_VERSION,
(int __user *)arg) ? -EFAULT : 0;
case SCARLETT2_IOCTL_REBOOT:
return scarlett2_reboot(mixer);
case SCARLETT2_IOCTL_SELECT_FLASH_SEGMENT:
return scarlett2_ioctl_select_flash_segment(mixer, arg);
case SCARLETT2_IOCTL_ERASE_FLASH_SEGMENT:
return scarlett2_ioctl_erase_flash_segment(mixer);
case SCARLETT2_IOCTL_GET_ERASE_PROGRESS:
return scarlett2_ioctl_get_erase_progress(mixer, arg);
default:
return -ENOIOCTLCMD;
}
}
static long scarlett2_hwdep_write(struct snd_hwdep *hw,
const char __user *buf,
long count, loff_t *offset)
{
struct usb_mixer_interface *mixer = hw->private_data;
struct scarlett2_data *private = mixer->private_data;
int segment_id, segment_num, err, len;
int flash_size;
/* SCARLETT2_USB_WRITE_SEGMENT request data */
struct {
__le32 segment_num;
__le32 offset;
__le32 pad;
u8 data[];
} __packed *req;
/* Calculate the maximum permitted in data[] */
const size_t max_data_size = SCARLETT2_FLASH_WRITE_MAX -
offsetof(typeof(*req), data);
/* If erasing, wait for it to complete */
if (private->flash_write_state ==
SCARLETT2_FLASH_WRITE_STATE_ERASING) {
err = scarlett2_wait_for_erase(mixer);
if (err < 0)
return err;
private->flash_write_state = SCARLETT2_FLASH_WRITE_STATE_WRITE;
/* Check that an erase has been done & completed */
} else if (private->flash_write_state !=
SCARLETT2_FLASH_WRITE_STATE_WRITE) {
return -EINVAL;
}
/* Check that we're writing to the upgrade firmware */
segment_id = private->selected_flash_segment_id;
if (segment_id != SCARLETT2_SEGMENT_ID_FIRMWARE)
return -EINVAL;
segment_num = private->flash_segment_nums[segment_id];
if (segment_num < SCARLETT2_SEGMENT_NUM_MIN ||
segment_num > SCARLETT2_SEGMENT_NUM_MAX)
return -EFAULT;
/* Validate the offset and count */
flash_size = private->flash_segment_blocks[segment_id] *
SCARLETT2_FLASH_BLOCK_SIZE;
if (count < 0 || *offset < 0 || *offset + count >= flash_size)
return -EINVAL;
if (!count)
return 0;
/* Limit the *req size to SCARLETT2_FLASH_WRITE_MAX */
if (count > max_data_size)
count = max_data_size;
/* Create and send the request */
len = struct_size(req, data, count);
req = kzalloc(len, GFP_KERNEL);
if (!req)
return -ENOMEM;
req->segment_num = cpu_to_le32(segment_num);
req->offset = cpu_to_le32(*offset);
req->pad = 0;
if (copy_from_user(req->data, buf, count)) {
err = -EFAULT;
goto error;
}
err = scarlett2_usb(mixer, SCARLETT2_USB_WRITE_SEGMENT,
req, len, NULL, 0);
if (err < 0)
goto error;
*offset += count;
err = count;
error:
kfree(req);
return err;
}
static int scarlett2_hwdep_release(struct snd_hwdep *hw, struct file *file)
{
struct usb_mixer_interface *mixer = hw->private_data;
struct scarlett2_data *private = mixer->private_data;
/* Return from the SELECTED or WRITE state to IDLE.
* The ERASING state is left as-is, and checked on next open.
*/
if (private &&
private->hwdep_in_use &&
private->flash_write_state != SCARLETT2_FLASH_WRITE_STATE_ERASING)
private->flash_write_state = SCARLETT2_FLASH_WRITE_STATE_IDLE;
return 0;
}
static int scarlett2_hwdep_init(struct usb_mixer_interface *mixer)
{
struct snd_hwdep *hw;
int err;
err = snd_hwdep_new(mixer->chip->card, "Focusrite Control", 0, &hw);
if (err < 0)
return err;
hw->private_data = mixer;
hw->exclusive = 1;
hw->ops.open = scarlett2_hwdep_open;
hw->ops.ioctl = scarlett2_hwdep_ioctl;
hw->ops.write = scarlett2_hwdep_write;
hw->ops.release = scarlett2_hwdep_release;
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 "
"https://github.com/geoffreybennett/scarlett-gen2/issues",
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;
}
err = scarlett2_hwdep_init(mixer);
if (err < 0)
usb_audio_err(mixer->chip,
"Error creating %s hwdep device: %d",
entry->series_name,
err);
return err;
}