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path: root/sound/usb/mixer_quirks.c
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2021-03-30Merge tag 'tags/mute-led-rework' into for-nextTakashi Iwai
ALSA: control - add generic LED API This patchset tries to resolve the diversity in the audio LED control among the ALSA drivers. A new control layer registration is introduced which allows to run additional operations on top of the elementary ALSA sound controls. A new control access group (three bits in the access flags) was introduced to carry the LED group information for the sound controls. The low-level sound drivers can just mark those controls using this access group. This information is not exported to the user space, but user space can manage the LED sound control associations through sysfs (last patch) per Mark's request. It makes things fully configurable in the kernel and user space (UCM). The actual state ('route') evaluation is really easy (the minimal value check for all channels / controls / cards). If there's more complicated logic for a given hardware, the card driver may eventually export a new read-only sound control for the LED group and do the logic itself. The new LED trigger control code is completely separated and possibly optional (there's no symbol dependency). The full code separation allows eventually to move this LED trigger control to the user space in future. Actually it replaces the already present functionality in the kernel space (HDA drivers) and allows a quick adoption for the recent hardware (ASoC codecs including SoundWire). snd_ctl_led 24576 0 The sound driver implementation is really easy: 1) call snd_ctl_led_request() when control LED layer should be automatically activated / it calls module_request("snd-ctl-led") on demand / 2) mark all related kcontrols with SNDRV_CTL_ELEM_ACCESS_SPK_LED or SNDRV_CTL_ELEM_ACCESS_MIC_LED Link: https://lore.kernel.org/r/20210317172945.842280-1-perex@perex.cz Signed-off-by: Takashi Iwai <tiwai@suse.de>
2021-03-26ALSA: usb-audio: Check connector value on resumeKai-Heng Feng
Rear Mic on Lenovo P620 cannot record after S3, despite that there's no error and the other two functions of the USB audio, Line In and Line Out, work just fine. The mic starts to work again after running userspace app like "alsactl store". Following the lead, the evidence shows that as soon as connector status is queried, the mic can work again. So also check connector value on resume to "wake up" the USB audio to make it functional. This can be device specific, however I think this generic approach may benefit more than one device. Now the resume callback checks connector, and a new callback, reset_resume, to also restore switches and volumes. Suggested-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Link: https://lore.kernel.org/r/20210325165918.22593-2-kai.heng.feng@canonical.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2021-03-18ALSA: usb-audio: Fix unintentional sign extension issueColin Ian King
The shifting of the u8 integer device by 24 bits to the left will be promoted to a 32 bit signed int and then sign-extended to a 64 bit unsigned long. In the event that the top bit of device is set then all then all the upper 32 bits of the unsigned long will end up as also being set because of the sign-extension. Fix this by casting device to an unsigned long before the shift. Addresses-Coverity: ("Unintended sign extension") Fixes: a07df82c7990 ("ALSA: usb-audio: Add DJM750 to Pioneer mixer quirk") Signed-off-by: Colin Ian King <colin.king@canonical.com> Link: https://lore.kernel.org/r/20210318132008.15266-1-colin.king@canonical.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2021-03-02ALSA: usb-audio: fix Pioneer DJM-850 control label infoNicolas MURE
Unlike the other DJM, the value to set the "CD/LINE" and "LINE" capture control options are inverted. This fix makes sure that the displayed info label while using `alsamixer` matches the input switches label on the DJM-850 mixer. Signed-off-by: Nicolas MURE <nicolas.mure2019@gmail.com> Link: https://lore.kernel.org/r/20210301152729.18094-5-nicolas.mure2019@gmail.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2021-03-02ALSA: usb-audio: Declare Pioneer DJM-850 mixer controlsNicolas MURE
Declare audio capture controls to choose the audio source, and also to set the capture level (in dB). See https://github.com/nm2107/Pioneer-DJM-850-driver-reverse-engineering/blob/172fb9a61055960c88c67b7c416fe5bf3609807b/doc/windows-djm-850-setting-utility/mixer-output-tab/README.md Signed-off-by: Nicolas MURE <nicolas.mure2019@gmail.com> Link: https://lore.kernel.org/r/20210301152729.18094-3-nicolas.mure2019@gmail.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2021-02-05ALSA: usb-audio: add mixer quirks for Pioneer DJM-900NXS2Fabian Lesniak
This commit adds mixer quirks for the Pioneer DJM-900NXS2 mixer. This device has 6 capture channels, 5 of them allow setting the signal source. This adds controls for these, similar to the DJM-250Mk2. However, playpack channels are not controllable via software like on the 250Mk2, as they can only be set manually on the mixing console. Read-only controls showing the currently selected playback channels are omitted. Signed-off-by: Fabian Lesniak <fabian@lesniak-it.de> Link: https://lore.kernel.org/r/20210205215116.258724-2-fabian@lesniak-it.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2021-02-05ALSA: usb-audio: Add DJM750 to Pioneer mixer quirkOlivia Mackintosh
This allows for N different devices to use the pioneer mixer quirk for setting capture/record type and recording level. The impementation has not changed much with the exception of an additional mask on private_value to allow storing of a device index: DEVICE MASK 0xff000000 GROUP_MASK 0x00ff0000 VALUE_MASK 0x0000ffff This could be improved by changing the arrays of wValues for each channel to contain named definitions (e.g. SND_DJM_CAP_LINE). It would improve readability and perhaps would allow using the same array for multiple channels. The channel number can be specified on the control next to the wIndex. Feedback is very much appreciated as I'm not the most proficient C programmer but am learning as I go. Signed-off-by: Olivia Mackintosh <livvy@base.nu> Link: https://lore.kernel.org/r/20210205184256.10201-2-livvy@base.nu Signed-off-by: Takashi Iwai <tiwai@suse.de>
2021-01-08ALSA: Convert strlcpy to strscpy when return value is unusedJoe Perches
strlcpy is deprecated. see: Documentation/process/deprecated.rst Change the calls that do not use the strlcpy return value to the preferred strscpy. Done with cocci script: @@ expression e1, e2, e3; @@ - strlcpy( + strscpy( e1, e2, e3); This cocci script leaves the instances where the return value is used unchanged. After this patch, sound/ has 3 uses of strlcpy() that need to be manually inspected for conversion and changed one day. $ git grep -w strlcpy sound/ sound/usb/card.c: len = strlcpy(card->longname, s, sizeof(card->longname)); sound/usb/mixer.c: return strlcpy(buf, p->name, buflen); sound/usb/mixer.c: return strlcpy(buf, p->names[index], buflen); Miscellenea: o Remove trailing whitespace in conversion of sound/core/hwdep.c Link: https://lore.kernel.org/lkml/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/ Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/22b393d1790bb268769d0bab7bacf0866dcb0c14.camel@perches.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-09-23ALSA: usb-audio: Add mixer support for Pioneer DJ DJM-250MK2František Kučera
This patch extends support for DJM-250MK2 and allows mapping playback and capture channels to available sources. Configures the card through USB commands. Signed-off-by: František Kučera <franta-linux@frantovo.cz> Link: https://lore.kernel.org/r/20200922144206.10472-1-konference@frantovo.cz Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-08-06ALSA: usb-audio: Creative USB X-Fi Pro SB1095 volume knob supportMirko Dietrich
Adds an entry for Creative USB X-Fi to the rc_config array in mixer_quirks.c to allow use of volume knob on the device. Adds support for newer X-Fi Pro card, known as "Model No. SB1095" with USB ID "041e:3263" Signed-off-by: Mirko Dietrich <buzz@l4m1.de> Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20200806124850.20334-1-buzz@l4m1.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-06-24ALSA: usb-audio: Fix OOB access of mixer element listTakashi Iwai
The USB-audio mixer code holds a linked list of usb_mixer_elem_list, and several operations are performed for each mixer element. A few of them (snd_usb_mixer_notify_id() and snd_usb_mixer_interrupt_v2()) assume each mixer element being a usb_mixer_elem_info object that is a subclass of usb_mixer_elem_list, cast via container_of() and access it members. This may result in an out-of-bound access when a non-standard list element has been added, as spotted by syzkaller recently. This patch adds a new field, is_std_info, in usb_mixer_elem_list to indicate that the element is the usb_mixer_elem_info type or not, and skip the access to such an element if needed. Reported-by: syzbot+fb14314433463ad51625@syzkaller.appspotmail.com Reported-by: syzbot+2405ca3401e943c538b5@syzkaller.appspotmail.com Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20200624122340.9615-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-05-29ALSA: usb-audio: Fixing usage of plain int instead of NULLThomas Ebeling
As reported by kbuild test robot, mixer quirks for RME Babyface Pro used plain integer instead of NULL. Fixes: 3e8f3bd04716 ("ALSA: usb-audio: RME Babyface Pro mixer patch") Signed-off-by: Thomas Ebeling <penguins@bollie.de> Reported-by: kbuild test robot <lkp@intel.com> Link: https://lore.kernel.org/r/20200529173248.zzawijfvw73kzjxt@bollie.ca9.eu Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-05-15ALSA: usb-audio: fixing upper volume limit for RME Babyface Pro routing ↵Thomas Ebeling
crosspoints In my initial patch, these were set too low. Fixes: 3e8f3bd04716 ("ALSA: usb-audio: RME Babyface Pro mixer patch") Signed-off-by: Thomas Ebeling <penguins@bollie.de> Link: https://lore.kernel.org/r/20200515114556.vtspnonzvp4xp44m@bollie.ca9.eu Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-04-24Merge branch 'for-linus' into for-nextTakashi Iwai
Back-merge 5.7-rc devel branch for further changes. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-04-23ALSA: usb-audio: Fix usb audio refcnt leak when getting spdifXiyu Yang
snd_microii_spdif_default_get() invokes snd_usb_lock_shutdown(), which increases the refcount of the snd_usb_audio object "chip". When snd_microii_spdif_default_get() returns, local variable "chip" becomes invalid, so the refcount should be decreased to keep refcount balanced. The reference counting issue happens in several exception handling paths of snd_microii_spdif_default_get(). When those error scenarios occur such as usb_ifnum_to_if() returns NULL, the function forgets to decrease the refcnt increased by snd_usb_lock_shutdown(), causing a refcnt leak. Fix this issue by jumping to "end" label when those error scenarios occur. Fixes: 447d6275f0c2 ("ALSA: usb-audio: Add sanity checks for endpoint accesses") Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn> Signed-off-by: Xin Tan <tanxin.ctf@gmail.com> Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/1587617711-13200-1-git-send-email-xiyuyang19@fudan.edu.cn Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-04-15ALSA: usb-audio: RME Babyface Pro mixer patchThomas Ebeling
Added mixer quirks to allow controlling the internal DSP of the RME Babyface Pro and its successor Babyface Pro FS. Signed-off-by: Thomas Ebeling <penguins@bollie.de> Link: https://lore.kernel.org/r/20200414211019.qprg7whepg2y7nei@bollie.ca9.eu Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-02-15ALSA: usb-audio: Add support for Presonus Studio 1810cNick Kossifidis
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>
2020-01-12ALSA: usb: update old-style static const declarationPierre-Louis Bossart
GCC reports the following warning with W=1 sound/usb/mixer_quirks.c: In function ‘snd_microii_controls_create’: sound/usb/mixer_quirks.c:1694:2: warning: ‘static’ is not at beginning of declaration [-Wold-style-declaration] 1694 | const static usb_mixer_elem_resume_func_t resume_funcs[] = { | ^~~~~ Move static to the beginning of declaration Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20200111214736.3002-3-pierre-louis.bossart@linux.intel.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-05ALSA: usb-audio: More constificationsTakashi Iwai
Apply const prefix to the remaining places: the static table for the unit information, the mixer maps, the validator tables, etc. Just for minor optimization and no functional changes. Link: https://lore.kernel.org/r/20200105144823.29547-12-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-03ALSA: usb: Constify snd_kcontrol_new itemsTakashi Iwai
Most of snd_kcontrol_new definitions are read-only and passed as-is. Let's declare them as const for further optimization. There should be no functional changes by this patch. Link: https://lore.kernel.org/r/20200103081714.9560-42-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-22Merge branch 'topic/usb-validation' into for-nextTakashi Iwai
Pull USB validation patches. It's based on the latest 5.3 development branch, so we shall catch up the whole things. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-21ALSA: usb-audio: Fix invalid NULL check in snd_emuusb_set_samplerate()Takashi Iwai
The quirk function snd_emuusb_set_samplerate() has a NULL check for the mixer element, but this is useless in the current code. It used to be a check against mixer->id_elems[unitid] but it was changed later to the value after mixer_eleme_list_to_info() which is always non-NULL due to the container_of() usage. This patch fixes the check before the conversion. While we're at it, correct a typo in the comment in the function, too. Fixes: 8c558076c740 ("ALSA: usb-audio: Clean up mixer element list traverse") Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-07-28ALSA: usb-audio: Scarlett Gen 2 mixer interfaceGeoffrey D. Bennett
Add mixer quirk for the Focusrite Scarlett 6i6, 18i8, and 18i20 Gen 2 audio interfaces. Although the interfaces are USB compliant, additional input/output level controls and hardware routing/mixing functionality are available using proprietary USB requests. Signed-off-by: Geoffrey D. Bennett <g@b4.vu> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-07-08Merge tag 'asoc-v5.3' of ↵Takashi Iwai
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus ASoC: Updates for v5.3 This is a very big update, mainly thanks to Morimoto-san's refactoring work and some fairly large new drivers. - Lots more work on moving towards a component based framework from Morimoto-san. - Support for force disconnecting muxes from Jerome Brunet. - New drivers for Cirrus Logic CS47L35, CS47L85 and CS47L90, Conexant CX2072X, Realtek RT1011 and RT1308. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-06-28ALSA: usb-audio: fix sign unintended sign extension on left shiftsColin Ian King
There are a couple of left shifts of unsigned 8 bit values that first get promoted to signed ints and hence get sign extended on the shift if the top bit of the 8 bit values are set. Fix this by casting the 8 bit values to unsigned ints to stop the unintentional sign extension. Addresses-Coverity: ("Unintended sign extension") Signed-off-by: Colin Ian King <colin.king@canonical.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156Thomas Gleixner
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-06ALSA: usb: Clean up with new procfs helpersTakashi Iwai
Simplify the proc fs creation code with new helper functions, snd_card_ro_proc_new() and snd_card_rw_proc_new(). Just a code refactoring and no functional changes. Reviewed-by: Jaroslav Kysela <perex@perex.cz> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-10-05ALSA: usb-audio: Add custom mixer status quirks for RME CC devicesJussi Laako
Adds several vendor specific mixer quirks for RME's Class Compliant USB devices. These provide extra status information from the device otherwise not available. These include AES/SPDIF rate and status information, current system sampling rate and measured frequency. This information is especially useful in cases where device's clock is slaved to external clock source. Signed-off-by: Jussi Laako <jussi@sonarnerd.net> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-07-26ALSA: usb-audio: Declare the common variable in header fileTakashi Iwai
Declare snd_usb_feature_unit_ctl properly in mixer.h. Otherwise it's error-prone. This fixes the sparse warning: sound/usb/mixer.c:1464:25: warning: symbol 'snd_usb_feature_unit_ctl' was not declared. Should it be static? Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-06-04ALSA: usb-audio: remove redundant check on errColin Ian King
The check on err is redundant as both the true and false paths end up on a break statement. Remove the redundant check. Detected by CoverityScan, CID#1268773 ("Identical code for different branches") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-05-28ALSA: usb-audio: Follow standard coding styleTakashi Iwai
Avoid if ((err = ...) style and expand to multiple lines instead. No change in the end result, but just the beautification. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-05-03ALSA: usb-audio: Clean up mixer element list traverseTakashi Iwai
Introduce a new macro for iterating over mixer element list for avoiding the open codes in many places. Also the open-coded container_of() and the forced cast to struct usb_mixer_elem_info are replaced with another simple macro, too. No functional changes but just readability improvement. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-05-02ALSA: usb-audio: Initialize Dell Dock playback volumesTakashi Iwai
In the early commit adcdd0d5a1cb ("ALSA: usb-audio: Skip volume controls triggers hangup on Dell USB Dock"), we add the mixer quirks for Dell dock to skip two mixer FU's for playback. This supposed that the device has always the proper initial volume, but it doesn't seem always correct. This patch adds the explicit initialization of the volumes to the fixed 0dB at the device probe time. Also, such a fixup is needed after the resume, so a new function is hooked to the resume callback as well. Bugzilla: http://bugzilla.suse.com/show_bug.cgi?id=1089467 Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-02-11vfs: do bulk POLL* -> EPOLL* replacementLinus Torvalds
This is the mindless scripted replacement of kernel use of POLL* variables as described by Al, done by this script: for V in IN OUT PRI ERR RDNORM RDBAND WRNORM WRBAND HUP RDHUP NVAL MSG; do L=`git grep -l -w POLL$V | grep -v '^t' | grep -v /um/ | grep -v '^sa' | grep -v '/poll.h$'|grep -v '^D'` for f in $L; do sed -i "-es/^\([^\"]*\)\(\<POLL$V\>\)/\\1E\\2/" $f; done done with de-mangling cleanups yet to come. NOTE! On almost all architectures, the EPOLL* constants have the same values as the POLL* constants do. But they keyword here is "almost". For various bad reasons they aren't the same, and epoll() doesn't actually work quite correctly in some cases due to this on Sparc et al. The next patch from Al will sort out the final differences, and we should be all done. Scripted-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-01-30Merge branch 'misc.poll' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull poll annotations from Al Viro: "This introduces a __bitwise type for POLL### bitmap, and propagates the annotations through the tree. Most of that stuff is as simple as 'make ->poll() instances return __poll_t and do the same to local variables used to hold the future return value'. Some of the obvious brainos found in process are fixed (e.g. POLLIN misspelled as POLL_IN). At that point the amount of sparse warnings is low and most of them are for genuine bugs - e.g. ->poll() instance deciding to return -EINVAL instead of a bitmap. I hadn't touched those in this series - it's large enough as it is. Another problem it has caught was eventpoll() ABI mess; select.c and eventpoll.c assumed that corresponding POLL### and EPOLL### were equal. That's true for some, but not all of them - EPOLL### are arch-independent, but POLL### are not. The last commit in this series separates userland POLL### values from the (now arch-independent) kernel-side ones, converting between them in the few places where they are copied to/from userland. AFAICS, this is the least disruptive fix preserving poll(2) ABI and making epoll() work on all architectures. As it is, it's simply broken on sparc - try to give it EPOLLWRNORM and it will trigger only on what would've triggered EPOLLWRBAND on other architectures. EPOLLWRBAND and EPOLLRDHUP, OTOH, are never triggered at all on sparc. With this patch they should work consistently on all architectures" * 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (37 commits) make kernel-side POLL... arch-independent eventpoll: no need to mask the result of epi_item_poll() again eventpoll: constify struct epoll_event pointers debugging printk in sg_poll() uses %x to print POLL... bitmap annotate poll(2) guts 9p: untangle ->poll() mess ->si_band gets POLL... bitmap stored into a user-visible long field ring_buffer_poll_wait() return value used as return value of ->poll() the rest of drivers/*: annotate ->poll() instances media: annotate ->poll() instances fs: annotate ->poll() instances ipc, kernel, mm: annotate ->poll() instances net: annotate ->poll() instances apparmor: annotate ->poll() instances tomoyo: annotate ->poll() instances sound: annotate ->poll() instances acpi: annotate ->poll() instances crypto: annotate ->poll() instances block: annotate ->poll() instances x86: annotate ->poll() instances ...
2018-01-18ALSA: usb-audio: Support changing input on Sound Blaster E1Ian Douglas Scott
The E1 has two headphone jacks, one of which can be set as a microphone input. In the default mode, it uses the built-in microphone as an input. By sending a special command, the second headphone jack is instead used as an input. This might work with the E3 as well, but I don't have one of those to test it. Signed-off-by: Ian Douglas Scott <ian@iandouglasscott.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-11-27sound: annotate ->poll() instancesAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-08-17ALSA: usb-audio: Add mute TLV for playback volumes on C-Media devicesTakashi Iwai
C-Media devices (at least some models) mute the playback stream when volumes are set to the minimum value. But this isn't informed via TLV and the user-space, typically PulseAudio, gets confused as if it's still played in a low volume. This patch adds the new flag, min_mute, to struct usb_mixer_elem_info for indicating that the mixer element is with the minimum-mute volume. This flag is set for known C-Media devices in snd_usb_mixer_fu_apply_quirk() in turn. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=196669 Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-05-30ALSA: declare snd_kcontrol_new structures as constBhumika Goyal
Declare snd_kcontrol_new structures as const as they are only passed an argument to the function snd_ctl_new1. This argument is of type const, so snd_kcontrol_new structures having this property can be made const. Done using Coccinelle: @r disable optional_qualifier@ identifier x; position p; @@ static struct snd_kcontrol_new x@p={...}; @ok@ identifier r.x; position p; @@ snd_ctl_new1(&x@p,...) @bad@ position p != {r.p,ok.p}; identifier r.x; @@ x@p @depends on !bad disable optional_qualifier@ identifier r.x; @@ +const struct snd_kcontrol_new x; Cross compiled these files: sound/aoa/codecs/tas.c - powerpc sound/mips/{hal2.c/sgio2audio.c} - mips sound/ppc/{awacs.c/beep.c/tumbler.c} - powerpc sound/soc/sh/siu_dai.c - sh Could not find an architecture to compile sound/sh/aica.c. Signed-off-by: Bhumika Goyal <bhumirks@gmail.com> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-02-20ALSA: usb-audio: Tascam US-16x08 DSP mixer quirkDetlef Urban
Add mixer quirk for Tascam US-16x08 usb interface. Even that this is an usb compliant device, the input channels and DSP functions (EQ/Compressor) aren't accessible by default. Signed-off-by: Detlef Urban <onkel@paraair.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-09-23ALSA: usb-audio: Extend DragonFly dB scale quirk to cover other variantsAnssi Hannula
The DragonFly quirk added in 42e3121d90f4 ("ALSA: usb-audio: Add a more accurate volume quirk for AudioQuest DragonFly") applies a custom dB map on the volume control when its range is reported as 0..50 (0 .. 0.2dB). However, there exists at least one other variant (hw v1.0c, as opposed to the tested v1.2) which reports a different non-sensical volume range (0..53) and the custom map is therefore not applied for that device. This results in all of the volume change appearing close to 100% on mixer UIs that utilize the dB TLV information. Add a fallback case where no dB TLV is reported at all if the control range is not 0..50 but still 0..N where N <= 1000 (3.9 dB). Also restrict the quirk to only apply to the volume control as there is also a mute control which would match the check otherwise. Fixes: 42e3121d90f4 ("ALSA: usb-audio: Add a more accurate volume quirk for AudioQuest DragonFly") Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi> Reported-by: David W <regulars@d-dub.org.uk> Tested-by: David W <regulars@d-dub.org.uk> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-03-16ALSA: usb-audio: Add sanity checks for endpoint accessesTakashi Iwai
Add some sanity check codes before actually accessing the endpoint via get_endpoint() in order to avoid the invalid access through a malformed USB descriptor. Mostly just checking bNumEndpoints, but in one place (snd_microii_spdif_default_get()), the validity of iface and altsetting index is checked as well. Bugzilla: https://bugzilla.suse.com/show_bug.cgi?id=971125 Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-01-13ALSA: usb-audio: Fix mixer ctl regression of Native Instrument devicesTakashi Iwai
The commit [da6d276957ea: ALSA: usb-audio: Add resume support for Native Instruments controls] brought a regression where the Native Instrument audio devices don't get the correct value at update due to the missing shift at writing. This patch addresses it. Fixes: da6d276957ea ('ALSA: usb-audio: Add resume support for Native Instruments controls') Reported-and-tested-by: Owen Williams <owilliams@mixxx.org> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-12-14ALSA: usb-audio: Add a more accurate volume quirk for AudioQuest DragonFlyAnssi Hannula
AudioQuest DragonFly DAC reports a volume control range of 0..50 (0x0000..0x0032) which in USB Audio means a range of 0 .. 0.2dB, which is obviously incorrect and would cause software using the dB information in e.g. volume sliders to have a massive volume difference in 100..102% range. Commit 2d1cb7f658fb ("ALSA: usb-audio: add dB range mapping for some devices") added a dB range mapping for it with range 0..50 dB. However, the actual volume mapping seems to be neither linear volume nor linear dB scale, but instead quite close to the cubic mapping e.g. alsamixer uses, with a range of approx. -53...0 dB. Replace the previous quirk with a custom dB mapping based on some basic output measurements, using a 10-item range TLV (which will still fit in alsa-lib MAX_TLV_RANGE_SIZE). Tested on AudioQuest DragonFly HW v1.2. The quirk is only applied if the range is 0..50, so if this gets fixed/changed in later HW revisions it will no longer be applied. v2: incorporated Takashi Iwai's suggestion for the quirk application method Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-09-28ALSA: usb-audio: harmless underflow in snd_audigy2nx_led_put()Dan Carpenter
We want to verify that "value" is either zero or one, so we test if it is greater than one. Unfortunately, this is a signed int so it could also be negative. I think this is harmless but it introduces a static checker warning. Let's make "value" unsigned. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-08-26ALSA: usb-audio: Avoid nested autoresume callsTakashi Iwai
After the recent fix of runtime PM for USB-audio driver, we got a lockdep warning like: ============================================= [ INFO: possible recursive locking detected ] 4.2.0-rc8+ #61 Not tainted --------------------------------------------- pulseaudio/980 is trying to acquire lock: (&chip->shutdown_rwsem){.+.+.+}, at: [<ffffffffa0355dac>] snd_usb_autoresume+0x1d/0x52 [snd_usb_audio] but task is already holding lock: (&chip->shutdown_rwsem){.+.+.+}, at: [<ffffffffa0355dac>] snd_usb_autoresume+0x1d/0x52 [snd_usb_audio] This comes from snd_usb_autoresume() invoking down_read() and it's used in a nested way. Although it's basically safe, per se (as these are read locks), it's better to reduce such spurious warnings. The read lock is needed to guarantee the execution of "shutdown" (cleanup at disconnection) task after all concurrent tasks are finished. This can be implemented in another better way. Also, the current check of chip->in_pm isn't good enough for protecting the racy execution of multiple auto-resumes. This patch rewrites the logic of snd_usb_autoresume() & co; namely, - The recursive call of autopm is avoided by the new refcount, chip->active. The chip->in_pm flag is removed accordingly. - Instead of rwsem, another refcount, chip->usage_count, is introduced for tracking the period to delay the shutdown procedure. At the last clear of this refcount, wake_up() to the shutdown waiter is called. - The shutdown flag is replaced with shutdown atomic count; this is for reducing the lock. - Two new helpers are introduced to simplify the management of these refcounts; snd_usb_lock_shutdown() increases the usage_count, checks the shutdown state, and does autoresume. snd_usb_unlock_shutdown() does the opposite. Most of mixer and other codes just need this, and simply returns an error if it receives an error from lock. Fixes: 9003ebb13f61 ('ALSA: usb-audio: Fix runtime PM unbalance') Reported-and-tested-by: Alexnader Kuleshov <kuleshovmail@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-04-09ALSA: usb - Creative USB X-Fi Pro SB1095 volume knob supportDmitry M. Fedin
Adds an entry for Creative USB X-Fi to the rc_config array in mixer_quirks.c to allow use of volume knob on the device. Adds support for newer X-Fi Pro card, known as "Model No. SB1095" with USB ID "041e:3237" Signed-off-by: Dmitry M. Fedin <dmitry.fedin@gmail.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-21ALSA: usb-audio: Add resume support for MicroII SPDIF ctlsTakashi Iwai
Like the previous fixes, the mixer accessors are converted to use usb_mixer_elem_list objects. In addition, the proper shutdown check are put in get and put callbacks. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-21ALSA: usb-audio: Add resume support for FTU controlsTakashi Iwai
A few FTU mixer controls have the own value handling, so they have to be rewritten to follow the support for resume callbacks. This ended up in a fair amount of refactoring. Its own struct is now removed, instead the values are embedded in kctl private_value totally. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-21ALSA: usb-audio: Add resume support for Native Instruments controlsTakashi Iwai
The changes at this time are a bit more wider than previous ones. Firstly, the NI controls didn't cache the values, so I had to implement the caching. It's stored in bit 24 of private_value. In addition to that, the initial values have to be read from registers. Signed-off-by: Takashi Iwai <tiwai@suse.de>