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ALSA: usb-audio: Add support for Presonus Studio 1810c
This patch adds support for Presonus Studio 1810c, a usb interface that's UAC2 compliant with a few quirks and a few extra hw-specific controls. I've tested all 3 altsettings and the added switch controls and they work as expected. More infos on the card: https://www.presonus.com/products/Studio-1810c Note that this work is based on packet inspection with usbmon. I just wanted to get this card to work for using it on our open-source radio station: https://github.com/UoC-Radio v2 address issues reported by Takashi: * Properly get/set enum type controls * Prevent race condition on switch_get/set * Various control naming changes * Various coding style fixes v3 improve readability of sample rate filtering and some other minor changes. Signed-off-by: Nick Kossifidis <mickflemm@gmail.com> Link: https://lore.kernel.org/r/5e47481a.1c69fb81.befb3.8dac@mx.google.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Nick Kossifidis
Takashi Iwai
parent
146f66975b
commit
8dc5efe3d1
@ -13,6 +13,7 @@ snd-usb-audio-objs := card.o \
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mixer_scarlett.o \
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mixer_scarlett_gen2.o \
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mixer_us16x08.o \
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mixer_s1810c.o \
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pcm.o \
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power.o \
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proc.o \
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@ -226,6 +226,36 @@ static int parse_audio_format_rates_v1(struct snd_usb_audio *chip, struct audiof
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return 0;
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}
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/*
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* Presonus Studio 1810c supports a limited set of sampling
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* rates per altsetting but reports the full set each time.
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* If we don't filter out the unsupported rates and attempt
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* to configure the card, it will hang refusing to do any
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* further audio I/O until a hard reset is performed.
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*
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* The list of supported rates per altsetting (set of available
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* I/O channels) is described in the owner's manual, section 2.2.
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*/
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static bool s1810c_valid_sample_rate(struct audioformat *fp,
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unsigned int rate)
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{
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switch (fp->altsetting) {
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case 1:
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/* All ADAT ports available */
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return rate <= 48000;
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case 2:
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/* Half of ADAT ports available */
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return (rate == 88200 || rate == 96000);
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case 3:
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/* Analog I/O only (no S/PDIF nor ADAT) */
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return rate >= 176400;
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default:
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return false;
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}
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return false;
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}
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/*
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* Helper function to walk the array of sample rate triplets reported by
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* the device. The problem is that we need to parse whole array first to
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@ -262,6 +292,12 @@ static int parse_uac2_sample_rate_range(struct snd_usb_audio *chip,
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}
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for (rate = min; rate <= max; rate += res) {
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/* Filter out invalid rates on Presonus Studio 1810c */
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if (chip->usb_id == USB_ID(0x0194f, 0x010c) &&
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!s1810c_valid_sample_rate(fp, rate))
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goto skip_rate;
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if (fp->rate_table)
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fp->rate_table[nr_rates] = rate;
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if (!fp->rate_min || rate < fp->rate_min)
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@ -276,6 +312,7 @@ static int parse_uac2_sample_rate_range(struct snd_usb_audio *chip,
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break;
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}
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skip_rate:
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/* avoid endless loop */
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if (res == 0)
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break;
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@ -34,6 +34,7 @@
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#include "mixer_scarlett.h"
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#include "mixer_scarlett_gen2.h"
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#include "mixer_us16x08.h"
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#include "mixer_s1810c.h"
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#include "helper.h"
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struct std_mono_table {
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@ -2277,6 +2278,10 @@ int snd_usb_mixer_apply_create_quirk(struct usb_mixer_interface *mixer)
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case USB_ID(0x2a39, 0x3fd4): /* RME */
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err = snd_rme_controls_create(mixer);
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break;
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case USB_ID(0x0194f, 0x010c): /* Presonus Studio 1810c */
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err = snd_sc1810_init_mixer(mixer);
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break;
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}
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return err;
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595
sound/usb/mixer_s1810c.c
Normal file
595
sound/usb/mixer_s1810c.c
Normal file
@ -0,0 +1,595 @@
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Presonus Studio 1810c driver for ALSA
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* Copyright (C) 2019 Nick Kossifidis <mickflemm@gmail.com>
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*
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* Based on reverse engineering of the communication protocol
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* between the windows driver / Univeral Control (UC) program
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* and the device, through usbmon.
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*
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* For now this bypasses the mixer, with all channels split,
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* so that the software can mix with greater flexibility.
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* It also adds controls for the 4 buttons on the front of
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* the device.
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*/
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#include <linux/usb.h>
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#include <linux/usb/audio-v2.h>
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#include <linux/slab.h>
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#include <sound/core.h>
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#include <sound/control.h>
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#include "usbaudio.h"
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#include "mixer.h"
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#include "mixer_quirks.h"
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#include "helper.h"
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#include "mixer_s1810c.h"
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#define SC1810C_CMD_REQ 160
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#define SC1810C_CMD_REQTYPE \
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(USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT)
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#define SC1810C_CMD_F1 0x50617269
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#define SC1810C_CMD_F2 0x14
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/*
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* DISCLAIMER: These are just guesses based on the
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* dumps I got.
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*
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* It seems like a selects between
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* device (0), mixer (0x64) and output (0x65)
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*
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* For mixer (0x64):
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* * b selects an input channel (see below).
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* * c selects an output channel pair (see below).
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* * d selects left (0) or right (1) of that pair.
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* * e 0-> disconnect, 0x01000000-> connect,
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* 0x0109-> used for stereo-linking channels,
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* e is also used for setting volume levels
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* in which case b is also set so I guess
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* this way it is possible to set the volume
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* level from the specified input to the
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* specified output.
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*
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* IN Channels:
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* 0 - 7 Mic/Inst/Line (Analog inputs)
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* 8 - 9 S/PDIF
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* 10 - 17 ADAT
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* 18 - 35 DAW (Inputs from the host)
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*
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* OUT Channels (pairs):
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* 0 -> Main out
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* 1 -> Line1/2
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* 2 -> Line3/4
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* 3 -> S/PDIF
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* 4 -> ADAT?
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*
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* For device (0):
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* * b and c are not used, at least not on the
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* dumps I got.
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* * d sets the control id to be modified
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* (see below).
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* * e sets the setting for that control.
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* (so for the switches I was interested
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* in it's 0/1)
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*
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* For output (0x65):
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* * b is the output channel (see above).
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* * c is zero.
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* * e I guess the same as with mixer except 0x0109
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* which I didn't see in my dumps.
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*
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* The two fixed fields have the same values for
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* mixer and output but a different set for device.
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*/
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struct s1810c_ctl_packet {
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u32 a;
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u32 b;
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u32 fixed1;
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u32 fixed2;
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u32 c;
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u32 d;
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u32 e;
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};
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#define SC1810C_CTL_LINE_SW 0
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#define SC1810C_CTL_MUTE_SW 1
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#define SC1810C_CTL_AB_SW 3
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#define SC1810C_CTL_48V_SW 4
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#define SC1810C_SET_STATE_REQ 161
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#define SC1810C_SET_STATE_REQTYPE SC1810C_CMD_REQTYPE
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#define SC1810C_SET_STATE_F1 0x64656D73
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#define SC1810C_SET_STATE_F2 0xF4
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#define SC1810C_GET_STATE_REQ 162
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#define SC1810C_GET_STATE_REQTYPE \
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(USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN)
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#define SC1810C_GET_STATE_F1 SC1810C_SET_STATE_F1
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#define SC1810C_GET_STATE_F2 SC1810C_SET_STATE_F2
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#define SC1810C_STATE_F1_IDX 2
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#define SC1810C_STATE_F2_IDX 3
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/*
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* This packet includes mixer volumes and
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* various other fields, it's an extended
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* version of ctl_packet, with a and b
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* being zero and different f1/f2.
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*/
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struct s1810c_state_packet {
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u32 fields[63];
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};
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#define SC1810C_STATE_48V_SW 58
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#define SC1810C_STATE_LINE_SW 59
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#define SC1810C_STATE_MUTE_SW 60
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#define SC1810C_STATE_AB_SW 62
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struct s1810_mixer_state {
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uint16_t seqnum;
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struct mutex usb_mutex;
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struct mutex data_mutex;
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};
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static int
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snd_s1810c_send_ctl_packet(struct usb_device *dev, u32 a,
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u32 b, u32 c, u32 d, u32 e)
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{
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struct s1810c_ctl_packet pkt = { 0 };
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int ret = 0;
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pkt.fixed1 = SC1810C_CMD_F1;
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pkt.fixed2 = SC1810C_CMD_F2;
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pkt.a = a;
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pkt.b = b;
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pkt.c = c;
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pkt.d = d;
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/*
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* Value for settings 0/1 for this
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* output channel is always 0 (probably because
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* there is no ADAT output on 1810c)
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*/
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pkt.e = (c == 4) ? 0 : e;
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ret = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
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SC1810C_CMD_REQ,
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SC1810C_CMD_REQTYPE, 0, 0, &pkt, sizeof(pkt));
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if (ret < 0) {
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dev_warn(&dev->dev, "could not send ctl packet\n");
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return ret;
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}
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return 0;
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}
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/*
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* When opening Universal Control the program periodicaly
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* sends and receives state packets for syncinc state between
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* the device and the host.
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*
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* Note that if we send only the request to get data back we'll
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* get an error, we need to first send an empty state packet and
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* then ask to receive a filled. Their seqnumbers must also match.
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*/
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static int
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snd_sc1810c_get_status_field(struct usb_device *dev,
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u32 *field, int field_idx, uint16_t *seqnum)
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{
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struct s1810c_state_packet pkt_out = { 0 };
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struct s1810c_state_packet pkt_in = { 0 };
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int ret = 0;
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pkt_out.fields[SC1810C_STATE_F1_IDX] = SC1810C_SET_STATE_F1;
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pkt_out.fields[SC1810C_STATE_F2_IDX] = SC1810C_SET_STATE_F2;
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ret = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0),
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SC1810C_SET_STATE_REQ,
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SC1810C_SET_STATE_REQTYPE,
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(*seqnum), 0, &pkt_out, sizeof(pkt_out));
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if (ret < 0) {
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dev_warn(&dev->dev, "could not send state packet (%d)\n", ret);
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return ret;
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}
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ret = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0),
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SC1810C_GET_STATE_REQ,
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SC1810C_GET_STATE_REQTYPE,
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(*seqnum), 0, &pkt_in, sizeof(pkt_in));
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if (ret < 0) {
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dev_warn(&dev->dev, "could not get state field %u (%d)\n",
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field_idx, ret);
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return ret;
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}
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(*field) = pkt_in.fields[field_idx];
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(*seqnum)++;
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return 0;
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}
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/*
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* This is what I got when bypassing the mixer with
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* all channels split. I'm not 100% sure of what's going
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* on, I could probably clean this up based on my observations
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* but I prefer to keep the same behavior as the windows driver.
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*/
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static int snd_s1810c_init_mixer_maps(struct snd_usb_audio *chip)
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{
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u32 a, b, c, e, n, off;
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struct usb_device *dev = chip->dev;
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/* Set initial volume levels ? */
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a = 0x64;
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e = 0xbc;
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for (n = 0; n < 2; n++) {
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off = n * 18;
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for (b = off, c = 0; b < 18 + off; b++) {
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/* This channel to all outputs ? */
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for (c = 0; c <= 8; c++) {
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snd_s1810c_send_ctl_packet(dev, a, b, c, 0, e);
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snd_s1810c_send_ctl_packet(dev, a, b, c, 1, e);
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}
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/* This channel to main output (again) */
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snd_s1810c_send_ctl_packet(dev, a, b, 0, 0, e);
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snd_s1810c_send_ctl_packet(dev, a, b, 0, 1, e);
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}
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/*
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* I noticed on UC that DAW channels have different
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* initial volumes, so this makes sense.
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*/
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e = 0xb53bf0;
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}
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/* Connect analog outputs ? */
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a = 0x65;
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e = 0x01000000;
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for (b = 1; b < 3; b++) {
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snd_s1810c_send_ctl_packet(dev, a, b, 0, 0, e);
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snd_s1810c_send_ctl_packet(dev, a, b, 0, 1, e);
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}
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snd_s1810c_send_ctl_packet(dev, a, 0, 0, 0, e);
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snd_s1810c_send_ctl_packet(dev, a, 0, 0, 1, e);
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/* Set initial volume levels for S/PDIF mappings ? */
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a = 0x64;
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e = 0xbc;
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c = 3;
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for (n = 0; n < 2; n++) {
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off = n * 18;
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for (b = off; b < 18 + off; b++) {
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snd_s1810c_send_ctl_packet(dev, a, b, c, 0, e);
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snd_s1810c_send_ctl_packet(dev, a, b, c, 1, e);
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}
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e = 0xb53bf0;
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}
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/* Connect S/PDIF output ? */
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a = 0x65;
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e = 0x01000000;
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snd_s1810c_send_ctl_packet(dev, a, 3, 0, 0, e);
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snd_s1810c_send_ctl_packet(dev, a, 3, 0, 1, e);
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/* Connect all outputs (again) ? */
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a = 0x65;
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e = 0x01000000;
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for (b = 0; b < 4; b++) {
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snd_s1810c_send_ctl_packet(dev, a, b, 0, 0, e);
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snd_s1810c_send_ctl_packet(dev, a, b, 0, 1, e);
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}
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/* Basic routing to get sound out of the device */
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a = 0x64;
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e = 0x01000000;
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for (c = 0; c < 4; c++) {
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for (b = 0; b < 36; b++) {
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if ((c == 0 && b == 18) || /* DAW1/2 -> Main */
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(c == 1 && b == 20) || /* DAW3/4 -> Line3/4 */
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(c == 2 && b == 22) || /* DAW4/5 -> Line5/6 */
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(c == 3 && b == 24)) { /* DAW5/6 -> S/PDIF */
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/* Left */
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snd_s1810c_send_ctl_packet(dev, a, b, c, 0, e);
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snd_s1810c_send_ctl_packet(dev, a, b, c, 1, 0);
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b++;
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/* Right */
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snd_s1810c_send_ctl_packet(dev, a, b, c, 0, 0);
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snd_s1810c_send_ctl_packet(dev, a, b, c, 1, e);
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} else {
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/* Leave the rest disconnected */
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snd_s1810c_send_ctl_packet(dev, a, b, c, 0, 0);
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snd_s1810c_send_ctl_packet(dev, a, b, c, 1, 0);
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}
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}
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}
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/* Set initial volume levels for S/PDIF (again) ? */
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a = 0x64;
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e = 0xbc;
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c = 3;
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for (n = 0; n < 2; n++) {
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off = n * 18;
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for (b = off; b < 18 + off; b++) {
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snd_s1810c_send_ctl_packet(dev, a, b, c, 0, e);
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snd_s1810c_send_ctl_packet(dev, a, b, c, 1, e);
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}
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e = 0xb53bf0;
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}
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/* Connect S/PDIF outputs (again) ? */
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a = 0x65;
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e = 0x01000000;
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snd_s1810c_send_ctl_packet(dev, a, 3, 0, 0, e);
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snd_s1810c_send_ctl_packet(dev, a, 3, 0, 1, e);
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/* Again ? */
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snd_s1810c_send_ctl_packet(dev, a, 3, 0, 0, e);
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snd_s1810c_send_ctl_packet(dev, a, 3, 0, 1, e);
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return 0;
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}
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/*
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* Sync state with the device and retrieve the requested field,
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* whose index is specified in (kctl->private_value & 0xFF),
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* from the received fields array.
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*/
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static int
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snd_s1810c_get_switch_state(struct usb_mixer_interface *mixer,
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struct snd_kcontrol *kctl, u32 *state)
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{
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struct snd_usb_audio *chip = mixer->chip;
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struct s1810_mixer_state *private = mixer->private_data;
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u32 field = 0;
|
||||
u32 ctl_idx = (u32) (kctl->private_value & 0xFF);
|
||||
int ret = 0;
|
||||
|
||||
mutex_lock(&private->usb_mutex);
|
||||
ret = snd_sc1810c_get_status_field(chip->dev, &field,
|
||||
ctl_idx, &private->seqnum);
|
||||
if (ret < 0)
|
||||
goto unlock;
|
||||
|
||||
*state = field;
|
||||
unlock:
|
||||
mutex_unlock(&private->usb_mutex);
|
||||
return ret ? ret : 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Send a control packet to the device for the control id
|
||||
* specified in (kctl->private_value >> 8) with value
|
||||
* specified in (kctl->private_value >> 16).
|
||||
*/
|
||||
static int
|
||||
snd_s1810c_set_switch_state(struct usb_mixer_interface *mixer,
|
||||
struct snd_kcontrol *kctl)
|
||||
{
|
||||
struct snd_usb_audio *chip = mixer->chip;
|
||||
struct s1810_mixer_state *private = mixer->private_data;
|
||||
u32 pval = (u32) kctl->private_value;
|
||||
u32 ctl_id = (pval >> 8) & 0xFF;
|
||||
u32 ctl_val = (pval >> 16) & 0x1;
|
||||
int ret = 0;
|
||||
|
||||
mutex_lock(&private->usb_mutex);
|
||||
ret = snd_s1810c_send_ctl_packet(chip->dev, 0, 0, 0, ctl_id, ctl_val);
|
||||
mutex_unlock(&private->usb_mutex);
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* Generic get/set/init functions for switch controls */
|
||||
|
||||
static int
|
||||
snd_s1810c_switch_get(struct snd_kcontrol *kctl,
|
||||
struct snd_ctl_elem_value *ctl_elem)
|
||||
{
|
||||
struct usb_mixer_elem_list *list = snd_kcontrol_chip(kctl);
|
||||
struct usb_mixer_interface *mixer = list->mixer;
|
||||
struct s1810_mixer_state *private = mixer->private_data;
|
||||
u32 pval = (u32) kctl->private_value;
|
||||
u32 ctl_idx = pval & 0xFF;
|
||||
u32 state = 0;
|
||||
int ret = 0;
|
||||
|
||||
mutex_lock(&private->data_mutex);
|
||||
ret = snd_s1810c_get_switch_state(mixer, kctl, &state);
|
||||
if (ret < 0)
|
||||
goto unlock;
|
||||
|
||||
switch (ctl_idx) {
|
||||
case SC1810C_STATE_LINE_SW:
|
||||
case SC1810C_STATE_AB_SW:
|
||||
ctl_elem->value.enumerated.item[0] = (int)state;
|
||||
break;
|
||||
default:
|
||||
ctl_elem->value.integer.value[0] = (long)state;
|
||||
}
|
||||
|
||||
unlock:
|
||||
mutex_unlock(&private->data_mutex);
|
||||
return (ret < 0) ? ret : 0;
|
||||
}
|
||||
|
||||
static int
|
||||
snd_s1810c_switch_set(struct snd_kcontrol *kctl,
|
||||
struct snd_ctl_elem_value *ctl_elem)
|
||||
{
|
||||
struct usb_mixer_elem_list *list = snd_kcontrol_chip(kctl);
|
||||
struct usb_mixer_interface *mixer = list->mixer;
|
||||
struct s1810_mixer_state *private = mixer->private_data;
|
||||
u32 pval = (u32) kctl->private_value;
|
||||
u32 ctl_idx = pval & 0xFF;
|
||||
u32 curval = 0;
|
||||
u32 newval = 0;
|
||||
int ret = 0;
|
||||
|
||||
mutex_lock(&private->data_mutex);
|
||||
ret = snd_s1810c_get_switch_state(mixer, kctl, &curval);
|
||||
if (ret < 0)
|
||||
goto unlock;
|
||||
|
||||
switch (ctl_idx) {
|
||||
case SC1810C_STATE_LINE_SW:
|
||||
case SC1810C_STATE_AB_SW:
|
||||
newval = (u32) ctl_elem->value.enumerated.item[0];
|
||||
break;
|
||||
default:
|
||||
newval = (u32) ctl_elem->value.integer.value[0];
|
||||
}
|
||||
|
||||
if (curval == newval)
|
||||
goto unlock;
|
||||
|
||||
kctl->private_value &= ~(0x1 << 16);
|
||||
kctl->private_value |= (unsigned int)(newval & 0x1) << 16;
|
||||
ret = snd_s1810c_set_switch_state(mixer, kctl);
|
||||
|
||||
unlock:
|
||||
mutex_unlock(&private->data_mutex);
|
||||
return (ret < 0) ? 0 : 1;
|
||||
}
|
||||
|
||||
static int
|
||||
snd_s1810c_switch_init(struct usb_mixer_interface *mixer,
|
||||
const struct snd_kcontrol_new *new_kctl)
|
||||
{
|
||||
struct snd_kcontrol *kctl;
|
||||
struct usb_mixer_elem_info *elem;
|
||||
|
||||
elem = kzalloc(sizeof(struct usb_mixer_elem_info), GFP_KERNEL);
|
||||
if (!elem)
|
||||
return -ENOMEM;
|
||||
|
||||
elem->head.mixer = mixer;
|
||||
elem->control = 0;
|
||||
elem->head.id = 0;
|
||||
elem->channels = 1;
|
||||
|
||||
kctl = snd_ctl_new1(new_kctl, elem);
|
||||
if (!kctl) {
|
||||
kfree(elem);
|
||||
return -ENOMEM;
|
||||
}
|
||||
kctl->private_free = snd_usb_mixer_elem_free;
|
||||
|
||||
return snd_usb_mixer_add_control(&elem->head, kctl);
|
||||
}
|
||||
|
||||
static int
|
||||
snd_s1810c_line_sw_info(struct snd_kcontrol *kctl,
|
||||
struct snd_ctl_elem_info *uinfo)
|
||||
{
|
||||
static const char *const texts[2] = {
|
||||
"Preamp On (Mic/Inst)",
|
||||
"Preamp Off (Line in)"
|
||||
};
|
||||
|
||||
return snd_ctl_enum_info(uinfo, 1, ARRAY_SIZE(texts), texts);
|
||||
}
|
||||
|
||||
static const struct snd_kcontrol_new snd_s1810c_line_sw = {
|
||||
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
||||
.name = "Line 1/2 Source Type",
|
||||
.info = snd_s1810c_line_sw_info,
|
||||
.get = snd_s1810c_switch_get,
|
||||
.put = snd_s1810c_switch_set,
|
||||
.private_value = (SC1810C_STATE_LINE_SW | SC1810C_CTL_LINE_SW << 8)
|
||||
};
|
||||
|
||||
static const struct snd_kcontrol_new snd_s1810c_mute_sw = {
|
||||
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
||||
.name = "Mute Main Out Switch",
|
||||
.info = snd_ctl_boolean_mono_info,
|
||||
.get = snd_s1810c_switch_get,
|
||||
.put = snd_s1810c_switch_set,
|
||||
.private_value = (SC1810C_STATE_MUTE_SW | SC1810C_CTL_MUTE_SW << 8)
|
||||
};
|
||||
|
||||
static const struct snd_kcontrol_new snd_s1810c_48v_sw = {
|
||||
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
||||
.name = "48V Phantom Power On Mic Inputs Switch",
|
||||
.info = snd_ctl_boolean_mono_info,
|
||||
.get = snd_s1810c_switch_get,
|
||||
.put = snd_s1810c_switch_set,
|
||||
.private_value = (SC1810C_STATE_48V_SW | SC1810C_CTL_48V_SW << 8)
|
||||
};
|
||||
|
||||
static int
|
||||
snd_s1810c_ab_sw_info(struct snd_kcontrol *kctl,
|
||||
struct snd_ctl_elem_info *uinfo)
|
||||
{
|
||||
static const char *const texts[2] = {
|
||||
"1/2",
|
||||
"3/4"
|
||||
};
|
||||
|
||||
return snd_ctl_enum_info(uinfo, 1, ARRAY_SIZE(texts), texts);
|
||||
}
|
||||
|
||||
static const struct snd_kcontrol_new snd_s1810c_ab_sw = {
|
||||
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
||||
.name = "Headphone 1 Source Route",
|
||||
.info = snd_s1810c_ab_sw_info,
|
||||
.get = snd_s1810c_switch_get,
|
||||
.put = snd_s1810c_switch_set,
|
||||
.private_value = (SC1810C_STATE_AB_SW | SC1810C_CTL_AB_SW << 8)
|
||||
};
|
||||
|
||||
static void snd_sc1810_mixer_state_free(struct usb_mixer_interface *mixer)
|
||||
{
|
||||
struct s1810_mixer_state *private = mixer->private_data;
|
||||
kfree(private);
|
||||
mixer->private_data = NULL;
|
||||
}
|
||||
|
||||
/* Entry point, called from mixer_quirks.c */
|
||||
int snd_sc1810_init_mixer(struct usb_mixer_interface *mixer)
|
||||
{
|
||||
struct s1810_mixer_state *private = NULL;
|
||||
struct snd_usb_audio *chip = mixer->chip;
|
||||
struct usb_device *dev = chip->dev;
|
||||
int ret = 0;
|
||||
|
||||
/* Run this only once */
|
||||
if (!list_empty(&chip->mixer_list))
|
||||
return 0;
|
||||
|
||||
dev_info(&dev->dev,
|
||||
"Presonus Studio 1810c, device_setup: %u\n", chip->setup);
|
||||
if (chip->setup == 1)
|
||||
dev_info(&dev->dev, "(8out/18in @ 48KHz)\n");
|
||||
else if (chip->setup == 2)
|
||||
dev_info(&dev->dev, "(6out/8in @ 192KHz)\n");
|
||||
else
|
||||
dev_info(&dev->dev, "(8out/14in @ 96KHz)\n");
|
||||
|
||||
ret = snd_s1810c_init_mixer_maps(chip);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
private = kzalloc(sizeof(struct s1810_mixer_state), GFP_KERNEL);
|
||||
if (!private)
|
||||
return -ENOMEM;
|
||||
|
||||
mutex_init(&private->usb_mutex);
|
||||
mutex_init(&private->data_mutex);
|
||||
|
||||
mixer->private_data = private;
|
||||
mixer->private_free = snd_sc1810_mixer_state_free;
|
||||
|
||||
private->seqnum = 1;
|
||||
|
||||
ret = snd_s1810c_switch_init(mixer, &snd_s1810c_line_sw);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
ret = snd_s1810c_switch_init(mixer, &snd_s1810c_mute_sw);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
ret = snd_s1810c_switch_init(mixer, &snd_s1810c_48v_sw);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
ret = snd_s1810c_switch_init(mixer, &snd_s1810c_ab_sw);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
return ret;
|
||||
}
|
||||
7
sound/usb/mixer_s1810c.h
Normal file
7
sound/usb/mixer_s1810c.h
Normal file
@ -0,0 +1,7 @@
|
||||
/* SPDX-License-Identifier: GPL-2.0 */
|
||||
/*
|
||||
* Presonus Studio 1810c driver for ALSA
|
||||
* Copyright (C) 2019 Nick Kossifidis <mickflemm@gmail.com>
|
||||
*/
|
||||
|
||||
int snd_sc1810_init_mixer(struct usb_mixer_interface *mixer);
|
||||
@ -1252,6 +1252,38 @@ static int fasttrackpro_skip_setting_quirk(struct snd_usb_audio *chip,
|
||||
return 0; /* keep this altsetting */
|
||||
}
|
||||
|
||||
static int s1810c_skip_setting_quirk(struct snd_usb_audio *chip,
|
||||
int iface, int altno)
|
||||
{
|
||||
/*
|
||||
* Altno settings:
|
||||
*
|
||||
* Playback (Interface 1):
|
||||
* 1: 6 Analog + 2 S/PDIF
|
||||
* 2: 6 Analog + 2 S/PDIF
|
||||
* 3: 6 Analog
|
||||
*
|
||||
* Capture (Interface 2):
|
||||
* 1: 8 Analog + 2 S/PDIF + 8 ADAT
|
||||
* 2: 8 Analog + 2 S/PDIF + 4 ADAT
|
||||
* 3: 8 Analog
|
||||
*/
|
||||
|
||||
/*
|
||||
* I'll leave 2 as the default one and
|
||||
* use device_setup to switch to the
|
||||
* other two.
|
||||
*/
|
||||
if ((chip->setup == 0 || chip->setup > 2) && altno != 2)
|
||||
return 1;
|
||||
else if (chip->setup == 1 && altno != 1)
|
||||
return 1;
|
||||
else if (chip->setup == 2 && altno != 3)
|
||||
return 1;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int snd_usb_apply_interface_quirk(struct snd_usb_audio *chip,
|
||||
int iface,
|
||||
int altno)
|
||||
@ -1265,6 +1297,10 @@ int snd_usb_apply_interface_quirk(struct snd_usb_audio *chip,
|
||||
/* fasttrackpro usb: skip altsets incompatible with device_setup */
|
||||
if (chip->usb_id == USB_ID(0x0763, 0x2012))
|
||||
return fasttrackpro_skip_setting_quirk(chip, iface, altno);
|
||||
/* presonus studio 1810c: skip altsets incompatible with device_setup */
|
||||
if (chip->usb_id == USB_ID(0x0194f, 0x010c))
|
||||
return s1810c_skip_setting_quirk(chip, iface, altno);
|
||||
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user