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53d7d69d8f
linux/sound/pci
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Wu Fengguang 53d7d69d8f ALSA: hdmi - support infoframe for DisplayPort 
DisplayPort works mostly in the same way as HDMI, except that it expects
a slightly different audio infoframe format.

Citations from "HDA036-A: Display Port Support and HDMI Miscellaneous
Corrections":

The HDMI specification defines a data island packet with a header of 4
bytes (3 bytes content + 1 byte ECC) and packet body of 32 bytes (28
bytes content and 4 bytes ECC). Display Port specification on the other
hand defines a data island packet (secondary data packet) with header of
4 bytes protected by 4 bytes of parity, and data of theoretically up to
1024 bytes with each 16 bytes chunk of data protected by 4 bytes of
parity. Note that the ECC or parity bytes are not present in the DIP
content populated by software and are hardware generated.

It tests DP connection based on the ELD conn_type field, which will be
set by the graphics driver and can be overriden manually by users
through the /proc/asound/card0/eld* interface.

The DP infoframe is tested OK on Intel SandyBridge/CougarPoint platform.

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-09-21 09:49:57 +02:00
..
ac97 include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
ali5451 sound: use DEFINE_PCI_DEVICE_TABLE 2010-02-09 11:08:33 +01:00
asihpi ALSA: asihpi - Return hw error directly from oustream_write. 2010-08-28 11:55:07 +02:00
au88x0 sound: use DEFINE_PCI_DEVICE_TABLE 2010-02-09 11:08:33 +01:00
aw2 ALSA: aw2-alsa.c: use pci_ids.h defines and fix checkpatch.pl noise 2010-05-25 08:39:28 +02:00
ca0106 include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
cs46xx ALSA: info - Check file position validity in common layer 2010-04-13 12:01:14 +02:00
cs5535audio include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
ctxfi include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
echoaudio ALSA: echoaudio: check kmalloc() result 2010-07-19 17:59:04 +02:00
emu10k1 ALSA: emu10k1 - delay the PCM interrupts (add pcm_irq_delay parameter) 2010-08-18 15:10:59 +02:00
hda ALSA: hdmi - support infoframe for DisplayPort 2010-09-21 09:49:57 +02:00
ice1712 Merge branch 'topic/core-cleanup' into for-linus 2010-05-20 11:58:57 +02:00
korg1212 sound: use DEFINE_PCI_DEVICE_TABLE 2010-02-09 11:08:33 +01:00
lx6464es include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
mixart ALSA: info - Implement common llseek for binary mode 2010-04-13 12:01:20 +02:00
nm256 sound: use DEFINE_PCI_DEVICE_TABLE 2010-02-09 11:08:33 +01:00
oxygen ALSA: virtuoso: fix setting of Xonar DS line-in/mic-in controls 2010-09-08 08:26:15 +02:00
pcxhr sound: use DEFINE_PCI_DEVICE_TABLE 2010-02-09 11:08:33 +01:00
riptide ALSA: riptide - Fix detection / load of firmware files 2010-08-16 08:08:48 +02:00
rme9652 include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
trident fix typos concerning "initiali[zs]e" 2010-06-16 18:05:05 +02:00
vx222 sound: use DEFINE_PCI_DEVICE_TABLE 2010-02-09 11:08:33 +01:00
ymfpci sound: use DEFINE_PCI_DEVICE_TABLE 2010-02-09 11:08:33 +01:00
ad1889.c sound: use DEFINE_PCI_DEVICE_TABLE 2010-02-09 11:08:33 +01:00
ad1889.h [ALSA] ad1889: add AD1889 driver 2005-09-12 10:40:17 +02:00
ak4531_codec.c ALSA: Fix missing KERN_* prefix to printk in sound/pci 2009-02-05 16:11:31 +01:00
als300.c sound: use DEFINE_PCI_DEVICE_TABLE 2010-02-09 11:08:33 +01:00
als4000.c ALSA: als4000: Fix potentially invalid DMA mode setup 2010-08-04 23:18:33 +02:00
atiixp_modem.c sound: use DEFINE_PCI_DEVICE_TABLE 2010-02-09 11:08:33 +01:00
atiixp.c Merge branch 'fix/misc' into topic/misc 2010-02-17 14:24:46 +01:00
azt3328.c sound: use DEFINE_PCI_DEVICE_TABLE 2010-02-09 11:08:33 +01:00
azt3328.h ALSA: azt3328: fix previous breakage, improve suspend, cleanups 2009-07-15 12:03:26 +02:00
bt87x.c sound: use DEFINE_PCI_DEVICE_TABLE 2010-02-09 11:08:33 +01:00
cmipci.c ALSA: cmipci: work around invalid PCM pointer 2010-03-24 08:02:11 +01:00
cs4281.c ALSA: info - Check file position validity in common layer 2010-04-13 12:01:14 +02:00
cs5530.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
ens1370.c sound: use DEFINE_PCI_DEVICE_TABLE 2010-02-09 11:08:33 +01:00
ens1371.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
es1938.c sound: use DEFINE_PCI_DEVICE_TABLE 2010-02-09 11:08:33 +01:00
es1968.c ALSA: es1968: Clear interrupts before enabling them 2010-05-08 11:51:06 +02:00
fm801.c sound: use DEFINE_PCI_DEVICE_TABLE 2010-02-09 11:08:33 +01:00
intel8x0.c ALSA: intel8x0: Mute External Amplifier by default for ThinkPad X31 2010-08-19 08:13:46 +02:00
intel8x0m.c sound: use DEFINE_PCI_DEVICE_TABLE 2010-02-09 11:08:33 +01:00
Kconfig ALSA: snd-es1968: Make hardware volume buttons an input device (rev2) 2010-04-23 17:09:59 +02:00
maestro3.c ALSA: maestro3: Clear interrupts before enabling them 2010-05-08 11:51:13 +02:00
Makefile ALSA: Add support of AudioScience ASI boards 2010-04-22 07:21:53 +02:00
rme32.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
rme96.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
sis7019.c sis7019: increase reset delays 2010-06-28 09:42:22 +02:00
sis7019.h trivial: fix typos s/paramter/parameter/ and s/excute/execute/ in documentation and source comments. 2009-06-12 18:01:46 +02:00
sonicvibes.c sound: use DEFINE_PCI_DEVICE_TABLE 2010-02-09 11:08:33 +01:00
via82xx_modem.c sound: use DEFINE_PCI_DEVICE_TABLE 2010-02-09 11:08:33 +01:00
via82xx.c ALSA: via82xx: allow changing the initial DXS volume 2010-07-12 17:25:27 +02:00