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path: root/sound/usb/quirks.c
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2012-02-15ALSA: usb-audio: avoid integer overflow in create_fixed_stream_quirk()Xi Wang1-1/+5
A malicious USB device could feed in a large nr_rates value. This would cause the subsequent call to kmemdup() to allocate a smaller buffer than expected, leading to out-of-bounds access. This patch validates the nr_rates value and reuses the limit introduced in commit 4fa0e81b ("ALSA: usb-audio: fix possible hang and overflow in parse_uac2_sample_rate_range()"). Signed-off-by: Xi Wang <xi.wang@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-10ALSA: usb-audio: Use kmemdup rather than duplicating its implementationThomas Meyer1-4/+3
Use kmemdup rather than duplicating its implementation The semantic patch that makes this change is available in scripts/coccinelle/api/memdup.cocci. Signed-off-by: Thomas Meyer <thomas@m3y3r.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-09-27ALSA: usb-audio: increase control transfer timeoutClemens Ladisch1-4/+4
There are certain devices that are reportedly so slow that they need more than 100 ms to handle control transfers. Therefore, increase the timeout in mixer(_quirks).c to 1000 ms. The timeout parameter of snd_usb_ctl_msg() is now constant, so we can drop it. Reported-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-09-14ALSA: snd-usb: re-order codeDaniel Mack1-3/+4
Move code from endpoint.c into a new file called stream.c and rename functions so that their names actually reflect what they're doing. This way, endpoint.c will be available to functions that hold all the endpoint logic. Signed-off-by: Daniel Mack <zonque@gmail.com> Acked-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-08-26ALSA: usb-audio: add Starr Labs USB MIDI supportKristian Amlie1-0/+1
Add support for Starr Labs USB MIDI devices such as the Z7S, which are based on an FTDI serial UART chip. Based on a patch by Daniel Mack. Signed-off-by: Kristian Amlie <kristian@amlie.name> Acked-by: Daniel Mack <zonque@gmail.com> Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-08-06ALSA: snd-usb: Fix uninitialized variable usageDaniel Mack1-1/+1
Purely cosmetic, but fixes the following build warning. CC [M] sound/usb/quirks.o sound/usb/quirks.c: In function ‘snd_usb_apply_boot_quirk’: sound/usb/quirks.c:429:6: warning: ‘err’ may be used uninitialized in this function [-Wuninitialized] Signed-off-by: Daniel Mack <zonque@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-07-12ALSA: usb-audio - Add quirks for M-Audio Fast Track Pro and QuattroGuillaume Pellerin1-25/+134
This patch gives M-Audio Fast Track Pro and M-Audio Quattro quirks and endpoints to boot and setup those devices with special options (digital inputs and outputs, 24 bits mode, etc...). M-Audio Audiophile quirks are just adapted to match the new global M-Audio parameters. Special configurations can be then loaded through a modprobe conf file. For example, to set the 24 bits mode on the Fast Track Pro add /etc/modprobe.d/fast_track_pro.conf : options snd_usb_audio vid=0x763 pid=0x2012 device_setup=0x08 Here is a list of the possibilities in this example : http://files.parisson.com/debian/fast-track-pro.conf Signed-off-by: Guillaume Pellerin <yomguy@parisson.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-06-03ALSA: usb - turn off de-emphasis in s/pdif for cm6206Eric Lammerts1-1/+1
CM6206: Turn off de-emphasis channel status bit in S/PDIF output. Signed-off-by: Eric Lammerts <eric@lammerts.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-05-25ALSA: usb-audio: add new quirk type QUIRK_AUDIO_STANDARD_MIXERDaniel Mack1-1/+16
This quirk type will let the driver assume that there is a standard mixer on a given interface, or that a specific mixer quirks will handle the device. Signed-off-by: Daniel Mack <zonque@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-05-25ALSA: usb-audio: export snd_usb_feature_unit_ctlDaniel Mack1-0/+1
In order to allow quirks functions to hook up to the standard feature unit op tables, this patch exports a pointer to the struct that is used internally. That way, all the code handling the control can be kept private, and external code can reference the symbol to re-use it. Signed-off-by: Daniel Mack <zonque@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-05-22Merge branch 'topic/misc' into for-linusTakashi Iwai1-0/+1
2011-05-18ALSA: usb-audio: remove invalid extra mixers for Komplete Audio 6Daniel Mack1-1/+1
This was a flaw in the reading of the spec tables - Native Instrument's "Komplete Audio 6" device has no such extra controls. This patch also fixes the device name in two comments. Signed-off-by: Daniel Mack <zonque@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-04-28ALSA: usb-audio - Terratec Aureon 7.1 USB ID as C-Media cm6206 quirksWolfgang Breyha1-0/+1
This patch adds support for the Terratec Aureon 7.1 USB which uses a C-Media cm6206 and needs all the quirks already found in the past. Signed-off-by: Wolfgang Breyha <wbreyha@gmx.net> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-04-14ALSA: usb-audio: Add quirks for Audio Kontrol 6Daniel Mack1-0/+1
This new device by Native Instruments is also compliant to the USB standard v2.0, but hides this detail at when connected. It needs the same boot quirks than other models, and also has two non-class-compliant mixer controls. Signed-off-by: Daniel Mack <zonque@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-03-31Fix common misspellingsLucas De Marchi1-1/+1
Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-11Merge branch 'fix/misc' into topic/miscTakashi Iwai1-1/+2
2011-02-14ALSA: usb-audio: reconstruct some dispatcher functions to use switch-caseDaniel Mack1-14/+15
The number of cases has increased so use switch-case rather than if-statements. Signed-off-by: Daniel Mack <daniel@caiaq.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-02-14ALSA: usb-audio: add support for Native Instruments MK2 devicesDaniel Mack1-0/+33
The MK2 generation of Native Instruments' sound cards are in fact compliant to the USB audio standard of version 2 and other approved USB standards. However, they come up as vendor-specific device when first connected but can be told to come up with a new set of descriptors upon their next enumeration. The interfaces announced by the new descriptors will be handled by the kernel's class drivers. This is done by issuing a vendor specific device request and sending the device to reset. There are also some vendor-specific USB requests for some mixer elements that can't be exported in a standard compliant way. The driver now supports them with quirks handling mechanisms. Signed-off-by: Daniel Mack <daniel@caiaq.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-02-08ALSA: usbaudio - Enable the E-MU 0204 USBJoseph Teichman1-1/+2
Signed-off-by: Joseph Teichman <josteich@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-10-22ALSA: usb-audio: add Novation Launchpad supportClemens Ladisch1-1/+1
Add a quirk entry for the Novation Launchpad USB MIDI controller. QUIRK_MIDI_FASTLANE gets renamed to *_RAW_BYTES because this quirk type is now shared by different devices. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Tested-by: Jakob Flierl <jakob.flierl@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-06-23ALSA: usb-audio: simplify control interface accessDaniel Mack1-0/+1
As the control interface is now carried in struct snd_usb_audio, we can simplify the API a little and also drop the private ctrlif field from struct usb_mixer_interface. Also remove a left-over function prototype in pcm.h. Signed-off-by: Daniel Mack <daniel@caiaq.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-05-21ALSA: usb-audio: add support for Akai MPD16Krzysztof Foltman1-0/+1
The decoding/encoding is based on own reverse-engineering. Both control and data ports are handled. Writing to control port supports SysEx events only, as this is the only type of messages that MPD16 recognizes. Signed-off-by: Krzysztof Foltman <wdev@foltman.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-03-29ALSA: usb - use of kmalloc/kfree requires the include of slab.hStephen Rothwell1-0/+1
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-03-12ALSA: usbmixer: rename usbmixer.[ch] -> mixer.[ch]Daniel Mack1-1/+1
For clearer namespace, also rename usbmixer_maps.c -> mixer_maps.c Signed-off-by: Daniel Mack <daniel@caiaq.de> Cc: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-03-12ALSA: usb-mixer: factor out quirksDaniel Mack1-0/+1
Move all non-standard mixer controls and vendor-specific extensions to a separate file. Some structs need to be exported now. Signed-off-by: Daniel Mack <daniel@caiaq.de> Cc: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-03-05ALSA: usb-audio: add support for samplerate setting on v2 devicesDaniel Mack1-2/+2
Sample rate setting is done with a 4-byte long class request that addresses the interface. Signed-off-by: Daniel Mack <daniel@caiaq.de> Cc: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-03-05ALSA: usb-audio: use a format bitmask per alternate settingClemens Ladisch1-1/+1
In preparation for USB audio 2.0 support, change the audioformat structure so that it uses a bitmask to specify possible formats. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-03-05ALSA: usb-audio: refactor codeDaniel Mack1-0/+592
Clean up the usb audio driver by factoring out a lot of functions to separate files. Code for procfs, quirks, urbs, format parsers etc all got a new home now. Moved almost all special quirk handling to quirks.c and introduced new generic functions to handle them, so the exceptions do not pollute the whole driver. Renamed usbaudio.c to card.c because this is what it actually does now. Renamed usbmidi.c to midi.c for namespace clarity. Removed more things from usbaudio.h. The non-standard drivers were adopted accordingly. Signed-off-by: Daniel Mack <daniel@caiaq.de> Cc: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
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