Commit Graph

680 Commits

Author SHA1 Message Date
Takashi Iwai
f0824812af [ALSA] hda-codec - Fix automute of AD1981HD hp model
Reprogram the speaker-pin setting at each HP pin plug to make sure
the spekaer auto-muting on AD1981HD hp model.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-04-24 12:00:09 +02:00
Takashi Iwai
937b416027 [ALSA] hda-codec - Fix ALC880 F1734 model
Fixed some issues with ALC880 F1734 model
 - fix capture via mic
 - enable volume-wheel control

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-04-24 12:00:09 +02:00
Jonathan Woithe
aa27a44395 [ALSA] hda-codec - remove duplicate controls in alc268 test mixer
I've just noticed that there are a handful of duplicate controls in the
ALC268 test model mixer.  This patch (against alsa-driver 1.0.16) removes
them.

Signed-off-by: Jonathan Woithe <jwoithe@physics.adelaide.edu.au>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-04-24 12:00:09 +02:00
Takashi Iwai
cc4d13873a [ALSA] hda-codec - Correct HDMI transmitter names
Give better names to the new HDMI transmitter chips.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-04-24 12:00:08 +02:00
Takashi Iwai
21c7b0819f [ALSA] hda-intel - Fix a compile error with CONFIG_SND_DEBUG_DETECT=y
Forgot to get rid of the obsolete fragsize field from a debug print.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-04-24 12:00:08 +02:00
Takashi Iwai
cf7aaca8ba [ALSA] hda-intel - Support 64bit buffer allocation
The HD-audio hardware usually supports 64bit address for DMA and other
buffers.  The patch enables the feature if supported.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-04-24 12:00:08 +02:00
Takashi Iwai
4ce107b990 [ALSA] hda-intel - Use SG buffer
Use SG buffers for the HD-audio instead of linear buffers.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-04-24 12:00:08 +02:00
Matthew Ranostay
b76c850fbc [ALSA] hda: STAC927x power down inactive DACs
On several laptops that have STAC9228 codecs have unused DACs,
this powers them down to a D3 state.

Signed-off-by: Matthew Ranostay <mranostay@embeddedalley.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-04-24 12:00:08 +02:00
Takashi Iwai
7d664ed58f [ALSA] hda-codec - Add ID for an unknown HDMI codec chip
Added the ID for an unknown HDMI codec chip on Jetway J9F2.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-04-24 12:00:07 +02:00
Takashi Iwai
7ba72ba1fe [ALSA] hda-intel - Fix PCM device number assignment
In the current scheme, PCM device numbers are assigned incrementally
in the order of codecs.  This causes problems when the codec number
is irregular, e.g. codec #0 for HDMI and codec #1 for analog.  Then
the HDMI becomes the first PCM, which is picked up as the default
output device.  Unfortuantely this doesn't work well with normal
setups.

This patch introduced the fixed device numbers for the PCM types,
namely, analog, SPDIF, HDMI and modem.  The PCM devices are assigned
according to the corresponding PCM type.  After this patch, HDMI will
be always assigned to PCM #3, SPDIF to PCM #1, and the first analog
to PCM #0, etc.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-04-24 12:00:07 +02:00
Mirco Tischler
f12462c522 [ALSA] hda-codec - Add support of Zepto laptops
Adds support for zepto laptops with alc268 intel_hda codec.

Signed-off-by: Mirco Tischler <mt-ml@gmx.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-04-24 12:00:07 +02:00
Takashi Iwai
12a733e56c [ALSA] hda-codec - Add SI HDMI codec support
Added the support of SI HDMI codec, found in ASUS machines.
ALSA bug#3654
        https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3654

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-04-24 12:00:06 +02:00
Takashi Iwai
09f9970139 [ALSA] hda-codec - Allow multiple SPDIF devices
The current code doesn't allow multiple SPDIF devices, and causes
errors when multiple SPDIF devices are found (e.g. SPDIF out and HDMI).
This patch allows multiple SPDIF devices by incrementing the index
automatically.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-04-24 12:00:06 +02:00
Tobin Davis
bf277785d6 [ALSA] HDA - Add support for the OQO Model 2
This patch adds support for the OQO Model 2 Ultra Mobile PC.

Signed-off-by: Tobin Davis <tdavis@dsl-only.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-04-24 12:00:06 +02:00
Herton Ronaldo Krzesinski
b4818494ed [ALSA] hda-codec - Adapt eeepc p701 mixer for virtual master control
Fix the line-out volume control of eeepc p701 to be a proper slave of
the virtual master control.

Signed-off-by: Herton Ronaldo Krzesinski <herton@mandriva.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-02-29 15:20:08 +01:00
Takashi Iwai
31bffaa943 [ALSA] hda-codec - Fix mixer names of realtek codecs to adapt mater controls
Some models like eeepc ep20 have invalid mixer names that aren't
handled properly by virtual master controls.  Rename them to the
proper names.

Also fixed some typos in the mixer names but they are not compiled
in right now.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-02-29 11:28:17 +01:00
Andrew Paprocki
0b167bf456 [ALSA] hda_intel - Add model quirk for Albatron KI690-AM2 motherboard
This adds a quirk to the Realtek ALC883 table for the Albatron KI690-AM2
motherboard to use the 6stack-dig model.

Signed-off-by: Andrew Paprocki <andrew@ishiboo.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-02-29 11:28:16 +01:00
Tony Vroon
3f1eeaed2c [ALSA] hda-codec - Add Fujitsu Lifebook E8410 to quirk table
Add the proper model entry for Fujitsu Lifebook E8410 with ALC262 codec.

From: Tony Vroon <tony@linx.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-02-29 11:28:16 +01:00
Takashi Iwai
fb304ce53a [ALSA] hda-codec - Fix AD1988 capture elements
The some indices of capture elements of AD1988 are wrongly assigned.
This patch fixes it.  See ALSA bug#3795
	https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3795

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-02-29 11:28:15 +01:00
Takashi Iwai
b84f08d491 [ALSA] hda-codec - Fix Master volume on HP dv8000
HP dv8000 laptop has a problem with Master volume.  It's due to the
connection of the widget 0x13.  When it's connected from the analog
amp mixer (0x19), it works as expected mysteriously (ALSA bug#3775):
	https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3775

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-02-29 11:28:14 +01:00
Takashi Iwai
c6cd7d7efe [ALSA] hda-intel - Fix Oops with ATI HDMI devices
The driver gets Oops with ATI HDMI devices due to the wrong calculation
of index for playback streams.  This patch fixes it.  Reference:
	https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3746

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-22 14:20:09 -08:00
Takashi Iwai
9e03ad7907 [ALSA] hda-codec - Fix amp-in values for pin widgets
Pin widgets have always one amp-input value regardless of number of
connections.  The proc file showed values wrongly.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-22 14:20:09 -08:00
Takashi Iwai
cced83b62c [ALSA] hda-codec - Fix ALC882 capture source selection
The capture source selection for ADC list with two elements is buggy
becaues of a wrong capture mux list.  This patch fixes the starting
index based on spec->num_adc_nids.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-22 14:20:09 -08:00
Takashi Iwai
614ca92b51 [ALSA] hda-codec - Fix wrong capture source selection for ALC883 codec
The widget list of capture source selection for ALC883 contains the
wrong NIDs.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-22 14:20:09 -08:00
Takashi Iwai
2f08554977 [ALSA] hda-codec - Don't create vmaster if no slaves found
Don't create vmaster controls if no slaves are found in the given list.
This prevents the error due to an empty vmaster control.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-22 14:20:09 -08:00
Serge A. Suchkov
14c65f98bf [ALSA] hda-codec - Fix race condition in generic bound volume/swtich controls
Attached patch fix race condition in hd_codec generic bound volume/swtich
controls

oops on this bug can be easy reproduced by two mixer apps on SMP system with
PREEMPT kernel

dmesg:

 ALSA /home/ss/ALSA/alsa-driver-1.0.16/pci/hda/../../alsa-kernel/pci/hda/hda_intel.c:596:
 hda_intel: azx_get_response timeout, switching to polling mode: las
 t cmd=0x014f0900
 BUG: unable to handle kernel paging request at virtual address 00070006
 printing eip: f8f43e95 *pde = 00000000
 Oops: 0000 [#1] PREEMPT SMP
 Modules linked in: i915 drm snd_seq_dummy snd_seq_oss snd_seq_midi_event
 snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss bnep rfcomm hidp l2cap
 bluetooth w
 lan_wep acpi_cpufreq coretemp hwmon mmc_block pcspkr psmouse wlan_scan_sta
 ath_rate_sample snd_hda_intel ath_pci serio_raw wlan tg3 sdhci snd_pcm
 firewire_o
 hci mmc_core i2c_i801 snd_timer firewire_core snd_page_alloc ath_hal(P)
 snd_hwdep snd iTCO_wdt crc_itu_t iTCO_vendor_support shpchp video output
 acer_acpi b
 acklight led_class wmi_acer

 Pid: 3969, comm: gkrellm Tainted: P        (2.6.24-jm #4)
 EIP: 0060:[<f8f43e95>] EFLAGS: 00010292 CPU: 0
 EIP is at snd_hda_mixer_bind_ctls_info+0x20/0x43 [snd_hda_intel]
 EAX: 00000000 EBX: f7478e00 ECX: f763e000 EDX: f764f788
 ESI: 00070002 EDI: edce5e00 EBP: edc3fe64 ESP: edc3fe54
  DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
 Process gkrellm (pid: 3969, ti=edc3e000 task=f1e4e000 task.ti=edc3e000)
 Stack: f764f77c f7478e00 edce5e00 f6dd6000 edc3fe84 f8e590e8 edc7a239 f6d14034
       f764f34c f6c0f7e0 edc3ff30 f6d14034 edc3fea8 f8e591b7 edc3ff30 edc3ff2c
       00000000 f70aa668 f6d14034 f8e59165 bfbfadb0 edc3ff40 f8e587aa edc3ff2c
 Call Trace:
 [<c0104fbb>] show_trace_log_lvl+0x1a/0x2f
 [<c010506d>] show_stack_log_lvl+0x9d/0xa5
 [<c0105119>] show_registers+0xa4/0x1bd
 [<c0105354>] die+0x122/0x206
 [<c03daccc>] do_page_fault+0x535/0x623
 [<c03d940a>] error_code+0x72/0x78
 [<f8e590e8>] snd_mixer_oss_get_volume1_vol+0x74/0xf1 [snd_mixer_oss]
 [<f8e591b7>] snd_mixer_oss_get_volume1+0x52/0xa5 [snd_mixer_oss]
 [<f8e587aa>] snd_mixer_oss_ioctl1+0x673/0x71e [snd_mixer_oss]
 [<f8e588af>] snd_mixer_oss_ioctl+0xb/0xd [snd_mixer_oss]
 [<c017af0a>] do_ioctl+0x22/0x67
 [<c017b186>] vfs_ioctl+0x237/0x24a
 [<c017b1ca>] sys_ioctl+0x31/0x4b
 [<c010402e>] syscall_call+0x7/0xb
 =======================
 Code: 3f 49 c7 89 f8 59 5b 5e 5f 5d c3 55 89 e5 57 89 d7 56 53 89 c3 83 ec 04
 8b 70 5c 8b 40 60 05 7c 01 00 00 89 45 f0 e8 c0 3f 49 c7 <8b> 46 04 89 fa 89
 4
 3 5c 89 d8 8b 0e ff 11 89 73 5c 89 c7 8b 45
 EIP: [<f8f43e95>] snd_hda_mixer_bind_ctls_info+0x20/0x43 [snd_hda_intel]
 SS:ESP 0068:edc3fe54
 ---[ end trace 0a20bc209e9397cc ]---

similar issue report present in ALSA bugtracking system
https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3652

Signed-off-by: Serge A. Suchkov <Serge.A.S@tochka.ru>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-22 14:20:09 -08:00
Takashi Iwai
cbef97892e [ALSA] hda-codec - Fix SPDIF output on Conexant 5045 codec
Fixed the SPDIF output on Conexant Cx5045 codec.  Added the missing
pin output setting and fixed the wrong NID for digital audio-out widget.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-22 14:20:08 -08:00
Takashi Iwai
90a5ad52bf [ALSA] HDA - enable snoop on SCH
This patch enables snoop on Intel SCH chipset, eliminating static during
playback.

Signed-off-by: Tobin Davis <tdavis@dsl-only.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-22 14:20:08 -08:00
Matthew Ranostay
cace16f174 [ALSA] hda: fix Mic in as output
Some laptop has an internal analog microphone that is 'fixed'.
This patch prevents creating a 'Mic In as Output' switch for
ports that can't be outputs.

Signed-off-by: Matthew Ranostay <mranostay@embeddedalley.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31 17:33:37 +01:00
Tobin Davis
4979bca9dc [ALSA] HDA-Intel - Add support for Intel SCH
This patch adds support for Intel's SCH mobile chipset.

Signed-off-by: Tobin Davis <tdavis@dsl-only.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31 17:30:23 +01:00
Matthew Ranostay
4fe5195c46 [ALSA] hda: Add GPIO mute support to STAC9205
Support added for detecting HP jack presence via GPIO on several laptop docks.

Signed-off-by: Matthew Ranostay <mranostay@embeddedalley.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31 17:30:22 +01:00
Douglas Kosovic
0aaa22e554 [ALSA] hda-codec - Add Dell T3400 support
Added the support for Dell T3400 with AD1984 codec chip.
ALSA bug#3699:
	https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3699

Signed-off-by: Douglas Kosovic <douglask@itee.uq.edu.au>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31 17:30:22 +01:00
Takashi Iwai
0f6a5156de [ALSA] hda-codec - Add model for HP DV9553EG laptop
Added the proper model for HP DV9553EG laptop with Cxt5045.
ALSA bug#3534
	https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3534

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31 17:30:21 +01:00
Takashi Iwai
edb54a55d2 [ALSA] hda-codec - Control SPDIF as slave
Add SPDIF playback switch to the slave element list so that it
can be toggled via the master control as well.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31 17:30:21 +01:00
Jason Gaston
c34f5a0469 [ALSA] hda_intel: ALSA HD Audio patch for Intel ICH10 DeviceID's
This patch adds the Intel ICH10 HD Audio Controller DeviceID's.

Signed-off-by: Jason Gaston <jason.d.gaston@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31 17:30:21 +01:00
Takashi Iwai
ce875f079e [ALSA] hda-codec - Add speaker automute to ALC262 HP models
Added the speaker-automute function to ALC262 HP models.
Also, 'Mono' mixer elements are renamed as more intuitive 'Speaker'.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31 17:30:20 +01:00
Takashi Iwai
bec15c3a5a [ALSA] hda-codec - Add speaker automute to ALC260 HP models
Added the speaker-automute function to ALC260 HP models.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31 17:30:20 +01:00
Takashi Iwai
f2f48e1859 [ALSA] hda-codec - Fix ALC262 HP-RP5700 model
Removed the PCM mixer elements conflicting with others.
Also renamed Master control to Headphone, which isn't a real master.
(The Master control is still created as a virtual master even after
 this rename.)

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31 17:30:20 +01:00
Takashi Iwai
4bb261302b [ALSA] hda-codec - Fix mixer controls with ALC262 HP T5735 model
The PCM mixer elements in HP T5735 model of ALC262 codec conflict
with Speaker and Headphone volumes.  They should be removed.
Ditto for LineOut that is identical with Speaker.
Also, fixed/cleaned up the auto-mute callback to use the amp cache
correctly.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31 17:30:20 +01:00
Takashi Iwai
86cd92983a [ALSA] hda-codec - Rename non-standard 'iSpeaker'
Renamed the non-standard mixer elements 'iSpeaker' to 'Speaker'
in Realtek codecs.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31 17:30:19 +01:00
Takashi Iwai
8c0d9649ba [ALSA] hda-codec - Add SPDIF output support to AD1986a laptop-eapd model
The SPDIF output on AD1986A laptop-eapd model is disabled although
some Samsung laptops have SPDIF output.  Enable it after checking the
pin default config.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31 17:30:19 +01:00
Jiang zhe
4444704cdc [ALSA] hda-codec - Add model for Gigabyte P35 DS3R
Signed-off-by: Jiang zhe <zhe.jiang@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31 17:30:19 +01:00
Takashi Iwai
4806ef0cf4 [ALSA] hda-codec - Add SPDIF controls as slave on AD codecs
The AD codecs have hardware SPDIF volume/switch controls but they
are not assigned to the slave list for virtual master controls.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31 17:30:16 +01:00
Matthew Ranostay
b5895dc8b4 [ALSA] hda: STAC92xx Line In/Mic as output check
This patch checks to see the Line In/Mic port have the ability
to do output before creating the the control switches.
The 92hd71bxx series of codecs has this issue with the port 0xe,
which only allows input.

Signed-off-by: Matthew Ranostay <mranostay@embededalley.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31 17:30:16 +01:00
Takashi Iwai
628ed1333a [ALSA] hda-codec - Add missing slave for AD1884 master switch
The Speaker switch is missing in the slave list.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31 17:30:16 +01:00
Andy Shevchenko
dafc83578d [ALSA] hda-codec - Add model for Acer Aspire 5310
Simplify usage of the Acer Aspire 5310 laptop with the ALC268 based codec
sound card via add correct PCI SSID.

Signed-off-by: Andy Shevchenko <andy@smile.org.ua>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31 17:30:16 +01:00
Takashi Iwai
461e2c78b1 [ALSA] hda-codec - Add Conexant 5051 codec support
Added the support for Conexant 5051 audio codec.
Right now there are two preset models, laptop and hp.
The whole patch is based on the information from the base patch by
Linuxant.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31 17:30:16 +01:00
Andy Shevchenko
29a52c242d [ALSA] hda-codec - Add model for Acer Aspire 5315
Simplify usage of the Acer Aspire 5315 laptop with the ALC268 based codec
sound card via add correct PCI SSID.

Signed-off-by: Andy Shevchenko <andy@smile.org.ua>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31 17:30:14 +01:00
Matthew Ranostay
e2e7d624ad [ALSA] hda: STAC9205 GPIO line fix
Fixed issue that the incorrect GPIO line was being pulled high
for some STAC9205 based laptops.

Signed-off-by: Matthew Ranostay <mranostay@embeddedalley.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31 17:30:14 +01:00
Takashi Iwai
6330079fc6 [ALSA] hda-codec - Fix handling of multiple capture streams
Fixed the bug that multiple capture streams conflict on Realtek codec
routines.
Also, this adds a framework to enable the alternative playback stream,
e.g. for VoIP.  It's not fully implemented yet, though.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31 17:30:13 +01:00