Before, /proc/asound looked like this:

 2 [Default        ]: HDSPM - RME RayDAT_f1cd85
                      RME RayDAT S/N 0xf1cd85 at 0xf7300000, irq 18

In case of a second HDSPM card, its name would be Default_1. This is
cumbersome, because the order of the cards isn't stable across reboots.

To help userspace tools referring to the correct card, this commit
provides a unique id for each card:

 2 [HDSPMxf1cd85   ]: HDSPM - RME RayDAT_f1cd85
                      RME RayDAT S/N 0xf1cd85 at 0xf7300000, irq 18

In this example, userspace (configuration files) would then use
hw:HDSPMxf1cd85 to choose the right card.

The serial is masked to 24bits, so this string is always shorter than
sixteen chars.
Signed-off-by: NAdrian Knoth <adi@drcomp.erfurt.thur.de>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Dan Carpenter reported that setting 0 to uinfo->value.enumerated.items
in snd_asihpi_cmode_info() may lead to Oops.  This function should
return an error immediately in such a case instead.

Cc: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Dan Carpenter reported that setting 0 to uinfo->value.enumerated.items
in snd_hdsp_info_pref_sync_ref() may lead to Oops.  This function should
return an error immediately in such a case instead.

Cc: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

With some buggy devices, the usb-audio driver may give "frame xxx active"
kernel messages too often.  Better to keep it as debug-only using
snd_printdd(), and also add the rate-limit for avoiding floods.

Bugzilla: https://bugzilla.novell.com/show_bug.cgi?id=738681

Cc: <stable@kernel.org>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

They are not needed here.
Signed-off-by: NKarsten Wiese <fzu@wemgehoertderstaat.de>
Cc: stable@kernel.org
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

The serial number is used multiple times in hdspm.c. Since it belongs
to the card, let's store it in struct hdspm and refer to it whenever
necessary.
Signed-off-by: NAdrian Knoth <adi@drcomp.erfurt.thur.de>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

A malicious USB device may feed in carefully crafted min/max/res values,
so that the inner loop in parse_uac2_sample_rate_range() could run for
a long time or even never terminate, e.g., given max = INT_MAX.

Also nr_rates could be a large integer, which causes an integer overflow
in the subsequent call to kmalloc() in parse_audio_format_rates_v2().
Thus, kmalloc() would allocate a smaller buffer than expected, leading
to a memory corruption.

To exploit the two vulnerabilities, an attacker needs physical access
to the machine to plug in a malicious USB device.

This patch makes two changes.

1) The type of "rate" is changed to unsigned int, so that the loop could
   stop once "rate" is larger than INT_MAX.

2) Limit nr_rates to 1024.
Suggested-by: NTakashi Iwai <tiwai@suse.de>
Signed-off-by: NXi Wang <xi.wang@gmail.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Fix channels swapping of 4 channels playback by
using vortex_adbdma_stopfifo instead of vortex_adbdma_pausefifo
for SNDRV_PCM_TRIGGER_STOP event
Signed-off-by: NRaymond Yau <superquad.vortex2@gmail.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Fix IRQ fifo error when playing stereo by set stereo flag of fifo control.
This also fix the swap of front and rear channels on au8830.
Signed-off-by: NRaymond Yau <superquad.vortex2@gmail.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

- Fix XtalkGainsDefault, XtalkGains1Chn
- Fix XtalkWideCoefsLeftEQ, XtalkWideCoefsRightEQ
- Fix XtlakWideCoefsLeftXT, XtalkWideCoefsRightXT
Signed-off-by: NRaymond Yau <superquad.vortex2@gmail.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Signed-off-by: NRaymond Yau <superquad.vortex2@gmail.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Append the external clock item to the clock list only if
the SPDIF_IN capability is defined in the SPDIF register.
Signed-off-by: NPavel Hofman <pavel.hofman@ivitera.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Cards with identical PCI ids but no AC97 config in EEPROM do not have
the ac97 field initialized. We must check for this case to avoid kernel oops.
Signed-off-by: NPavel Hofman <pavel.hofman@ivitera.com>
Cc: <stable@kernel.org>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

0x20051102 is an Audigy 2 ZS.
Signed-off-by: NTim Yamin <plasm@roo.me.uk>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Export compress_offload.h and compress_params.h for userland to use
Signed-off-by: NVinod Koul <vinod.koul@linux.intel.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Signed-off-by: NVinod Koul <vinod.koul@linux.intel.com>
Signed-off-by: NPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

This patch adds core.c, the file which implements the ioctls and
registers the devices
Signed-off-by: NVinod Koul <vinod.koul@linux.intel.com>
Signed-off-by: NPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

This patch adds the header files for ioctl definitions and header file for
driver APIs for lower level device drivers to use
Signed-off-by: NVinod Koul <vinod.koul@linux.intel.com>
Signed-off-by: NPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

The patch adds the various definations used to define the encoder
and decoder parameters
Signed-off-by: NVinod Koul <vinod.koul@linux.intel.com>
Signed-off-by: NPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Use the minor numbers 2 and 3 for audio compressed offload devices.
Also add support for these devices in core
Signed-off-by: NOmair Mohammed Abdullah <omair.m.abdullah@intel.com>
Signed-off-by: NPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: NVinod Koul <vinod.koul@linux.intel.com>
Reviewed-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

The patch adds the documentation file explaining the API
Signed-off-by: NPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: NVinod Koul <vinod.koul@linux.intel.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Sharing and not reinitialising static pcm_hardware struct resulted in
stream format validity flags being incorrectly shared between cards.
Fix and clarify by declaring locally and initialising in the open functions.
Signed-off-by: NEliot Blennerhassett <eblennerhassett@audioscience.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Since introduction of mono and low latency modes, fixed channel count of 2
is not always valid.  Use reported max_channels instead.
Signed-off-by: NEliot Blennerhassett <eblennerhassett@audioscience.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Previously, only payload and size were correct, sufficient for reading,
but other fields produced spurious debug output.
Signed-off-by: NEliot Blennerhassett <eblennerhassett@audioscience.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

It is useful to know the HPI version without having to load the module,
in order to determine the matching firmware version.
Signed-off-by: NEliot Blennerhassett <eblennerhassett@audioscience.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Signed-off-by: NEliot Blennerhassett <eblennerhassett@audioscience.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Add new error codes, and adapter properties.
Clean up some comments.
Signed-off-by: NEliot Blennerhassett <eblennerhassett@audioscience.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Signed-off-by: NEliot Blennerhassett <eblennerhassett@audioscience.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

dsp_code struct is not created if firmware is invalid, so check
and zero of firmware pointer is not necessary
Signed-off-by: NEliot Blennerhassett <eblennerhassett@audioscience.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Structs hpi_adapter and snd_card_asihpi had members that
duplicate those in underlying hpi_adapter_obj or whose info
can be retrieved using hpi_adapter_get_info().

Print less info in probe function, it can be retrieved from /proc.

Avoid name redundancy: hpi_adapter_obj.adapter_type renamed to .type
Signed-off-by: NEliot Blennerhassett <eblennerhassett@audioscience.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Enables retrieving more debug info in fewer transactions.
Signed-off-by: NEliot Blennerhassett <eblennerhassett@audioscience.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Signed-off-by: NEliot Blennerhassett <eblennerhassett@audioscience.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Structs related to network flash update are not required in kernel.
Signed-off-by: NEliot Blennerhassett <eblennerhassett@audioscience.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Add "Internal" node type.
Remove GPI and GPO node types.
Signed-off-by: NEliot Blennerhassett <eblennerhassett@audioscience.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Signed-off-by: NEliot Blennerhassett <eblennerhassett@audioscience.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Signed-off-by: NEliot Blennerhassett <eblennerhassett@audioscience.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Signed-off-by: NEliot Blennerhassett <eblennerhassett@audioscience.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Signed-off-by: NEliot Blennerhassett <eblennerhassett@audioscience.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

The channel count can be queried to determine which.
Signed-off-by: NEliot Blennerhassett <eblennerhassett@audioscience.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Unlike other streams which support 1..max channels,
Signed-off-by: NEliot Blennerhassett <eblennerhassett@audioscience.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>