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Maximilian Rehkopf af9b70ac00 [ALSA] Add Aux input switch control for Aureon Universe ... This patch adds a mixer control which allows the user to switch the Aux playback between the internal Aux jack, Wavetable, and Rear Line-In on Aureon Universe cards. For switching, a PCA9554 (8-line GPIO with I2C interface) and a 74HC4052 (dual 4-way mux/demux) are used. Output 0 and 1 of the PCA9554 are connected to the select pins of the 74HC4052. The I2C interface of the PCA9554 is connected to the card's internal SPI bus which is also used to control the WM8770 and CS8415. SPI and I2C on the same lines... To communicate with the PCA9554 the WM8770 and CS8415 are disabled and an I2C Stop Condition is generated before the Start Condition (needed for synchronisation because other SPI traffic appear to confuse the PCA9554). Then a normal I2C data transfer takes place. Programming must be done ridiculously slow; in theory, 4.7us is the minimum delay time for normal-speed I2C according to the datasheet, but even with 10us switching was unreliable. The Windows driver from Terratec does the programming very slowly, too (checked with an oscilloscope). PCA9554 datasheet: http://www.semiconductors.philips.com/acrobat/datasheets/PCA9554_9554A_6.pdf 74HC4052 datasheet: http://www.semiconductors.philips.com/acrobat/datasheets/74HC_HCT4052_4.pdf Signed-off-by: Maximilian Rehkopf <otakon@gmx.net> Signed-off-by: Takashi Iwai <tiwai@suse.de>		19 years ago
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ac97	[ALSA] ac97 - Clean up obsolete workarounds	19 years ago
ali5451	[PATCH] Replace 0xff.. with correct DMA_xBIT_MASK	19 years ago
au88x0	[ALSA] au88x0 - Fix structs for equalizer	19 years ago
ca0106	[ALSA] snd-ca0106: Fixed ALSA bug#1600	19 years ago
cs46xx	[ALSA] fix some memory leaks	19 years ago
cs5535audio	[ALSA] CS5535: shorter delays when accessing AC'97 codec registers	19 years ago
emu10k1	[PATCH] Replace 0xff.. with correct DMA_xBIT_MASK	19 years ago
hda	[ALSA] sound/pci/hda: use create_singlethread_workqueue()	19 years ago
ice1712	[ALSA] Add Aux input switch control for Aureon Universe	19 years ago
korg1212	[ALSA] semaphore -> mutex (PCI part)	19 years ago
mixart	[PATCH] Replace 0xff.. with correct DMA_xBIT_MASK	19 years ago
nm256	[ALSA] Fix NM256 hard lock up	19 years ago
pcxhr	[ALSA] pcxhr - Fix the crash with REV01 board	19 years ago
riptide	[ALSA] Remove obsolete kfree_nocheck call	19 years ago
rme9652	[PATCH] Typo fixes	19 years ago
trident	[PATCH] Replace 0xff.. with correct DMA_xBIT_MASK	19 years ago
vx222	[ALSA] semaphore -> mutex (PCI part)	19 years ago
ymfpci	[ALSA] ymfpci - make rear channel swap optional	19 years ago
Kconfig	[ALSA] Add snd-als300 driver for Avance Logic ALS300/ALS300+ soundcards	19 years ago
Makefile	[ALSA] Add snd-als300 driver for Avance Logic ALS300/ALS300+ soundcards	19 years ago
ad1889.c	[PATCH] Replace 0xff.. with correct DMA_xBIT_MASK	19 years ago
ad1889.h	[ALSA] ad1889: add AD1889 driver	20 years ago
als300.c	[ALSA] Add snd-als300 driver for Avance Logic ALS300/ALS300+ soundcards	19 years ago
als4000.c	[PATCH] Replace 0xff.. with correct DMA_xBIT_MASK	19 years ago
atiixp.c	[ALSA] semaphore -> mutex (PCI part)	19 years ago
atiixp_modem.c	[ALSA] semaphore -> mutex (PCI part)	19 years ago
azt3328.c	[PATCH] Replace 0xff.. with correct DMA_xBIT_MASK	19 years ago
azt3328.h	[ALSA] AZT3328 driver update	20 years ago
bt87x.c	[ALSA] bt87x: add more DVB card IDs	19 years ago
cmipci.c	[ALSA] semaphore -> mutex (PCI part)	19 years ago
cs4281.c	[ALSA] cs4281 - Fix the check of timeout in probe	19 years ago
ens1370.c	[ALSA] semaphore -> mutex (PCI part)	19 years ago
ens1371.c	Linux-2.6.12-rc2	20 years ago
es1938.c	[PATCH] Replace 0xff.. with correct DMA_xBIT_MASK	19 years ago
es1968.c	[PATCH] Replace 0xff.. with correct DMA_xBIT_MASK	19 years ago
fm801.c	[ALSA] fm801 - Add PM support	19 years ago
intel8x0.c	[ALSA] intel8x0 - wait for ICH_RESETREGS	19 years ago
intel8x0m.c	[ALSA] Optimize for config without PROC_FS (pci drivers)	19 years ago
maestro3.c	[ALSA] maestro3.c: fix BUG, optimization	19 years ago
rme32.c	[PATCH] Typo fixes	19 years ago
rme96.c	[PATCH] Typo fixes	19 years ago
sonicvibes.c	[PATCH] Replace 0xff.. with correct DMA_xBIT_MASK	19 years ago
via82xx.c	[ALSA] via82xx - Add dxs entry for EPoX EP-8KRAI	19 years ago
via82xx_modem.c	[ALSA] via82xx - Fix PM support	19 years ago