[alsa-devel] Intel SST and HP ElitePad 1000 G2

Jorge Fernandez Monteagudo jorgefm at cirsa.com
Wed Nov 25 09:49:41 CET 2015


Hi,

I've generated a new kernel, a 4.3.0, only with 

CONFIG_SND_SST_MFLD_PLATFORM=m
CONFIG_SND_SST_IPC=m
CONFIG_SND_SST_IPC_ACPI=m
CONFIG_SND_SOC_INTEL_SST=m
CONFIG_SND_SOC_INTEL_SST_ACPI=m
CONFIG_SND_SOC_INTEL_BAYTRAIL=m
CONFIG_SND_SOC_INTEL_BYT_MAX98090_MACH=m
CONFIG_SND_SOC_INTEL_BYTCR_RT5640_MACH=m
CONFIG_SND_SOC_I2C_AND_SPI=m

and I've downloaded the firmware this repository (I don't know this git is the official one)
from http://git.kernel.org/cgit/linux/kernel/git/firmware/linux-firmware.git

But I have no audio. The firmware is loaded, I see this traces

[    4.013712] baytrail-pcm-audio baytrail-pcm-audio: FW version: 04.05.13.a0
[    4.013714] baytrail-pcm-audio baytrail-pcm-audio: Build type: a0
[    4.013716] baytrail-pcm-audio baytrail-pcm-audio: Build date: Apr  2 2014 14:14:39

but the mapping is not done. In the 4.2.5 kernel I see

[    4.256939] byt-rt5640 byt-rt5640: rt5640-aif1 <-> baytrail-pcm-audio mapping ok

Both attached.

Another problem. In the working 4.2.5 kernel, when I run my application, a game which
plays sounds, in a few minutes the system is totally frozen, in some cases, with a sound
looping endlessly. I'm trying to get a kernel trace to debug this situation... Any hint is welcome!

Regards

________________________________________
From: Pierre-Louis Bossart [pierre-louis.bossart at linux.intel.com]
Sent: Tuesday, November 24, 2015 4:19 PM
To: Jorge Fernandez Monteagudo; alsa-devel at alsa-project.org
Subject: Re: [alsa-devel] Intel SST and HP ElitePad 1000 G2

> I've download your t100-v4.3-24bit branch, then I've patched it with my changes
> and I've deployed it in the tablet. I've copied the bytcr-rt5640 from UCM master
> branch in the /usr/share/alsa/ucm tablet directory, but after rebooting I have no
> sound.
>
> Attached you can find the dmesg log and the .config used to generate the kernel,
> maybe any option has to be enabled...

the .config looks problematic, you can't have both haswell/broadwell
enabled at the same time. I only have these options defined:

CONFIG_SND_SST_MFLD_PLATFORM=m
CONFIG_SND_SST_IPC=m
CONFIG_SND_SST_IPC_ACPI=m
CONFIG_SND_SOC_INTEL_BYTCR_RT5640_MACH=m

Also make sure you have a 'recent' /lib/firmware.

>
> Regards,
> Jorge
> ________________________________________
> From: Pierre-Louis Bossart [pierre-louis.bossart at linux.intel.com]
> Sent: Monday, November 23, 2015 6:02 PM
> To: Jorge Fernandez Monteagudo; alsa-devel at alsa-project.org
> Subject: Re: [alsa-devel] Intel SST and HP ElitePad 1000 G2
>
> On 11/23/15 9:13 AM, Jorge Fernandez Monteagudo wrote:
>> Hi,
>>
>> I've been able to get the audio working in the HP ElitePad 1000G2 tablet.
>> Attached the patch I've used in a 4.2.5 to get it working.
>
> Thanks for sharing and good to hear that you have audio working. I have
> no idea why BIOS folks keep inventing new (and illegal) ACPI _HID values...
>
> We may need to use the same tricks as in sst-acpi to find out which
> string to use for .codec_name based on which _HID is handled by the ACPI
> subsystem instead of a hard-coded value.
>
> Note that we are trying to move away from this older driver to a newer
> one based on DPCM that would also support BYT-CR devices and MinnowMax
> Board. It's not ready yet for upstream but if you want to add those
> changes to the newer version and test it'd be great. See
> https://github.com/plbossart/sound.git t100-v4.3-24bit and matching UCM
> files at https://github.com/plbossart/UCM
>
>>
>> Basically in this tablet the rt5640 realtek audio codec is identified with
>> INTCCFFD. I don't know how to share 'byt-rt5640.c' with two identifiers
>> because I had to change:
>>
>> @@ -186,7 +194,7 @@
>>                .stream_name = "Audio",
>>                .cpu_dai_name = "baytrail-pcm-audio",
>>                .codec_dai_name = "rt5640-aif1",
>> -             .codec_name = "i2c-10EC5640:00",
>> +             .codec_name = "i2c-INTCCFFD:00",
>>                .platform_name = "baytrail-pcm-audio",
>>                .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
>>                           SND_SOC_DAIFMT_CBS_CFS,
>>
>> but the correct will be to two both of them.
>>
>> Regards
>>
>> ________________________________________
>> From: alsa-devel-bounces at alsa-project.org [alsa-devel-bounces at alsa-project.org] On Behalf Of Jorge Fernandez Monteagudo [jorgefm at cirsa.com]
>> Sent: Friday, November 20, 2015 4:27 PM
>> To: alsa-devel at alsa-project.org
>> Subject: [alsa-devel] Intel SST and HP ElitePad 1000 G2
>>
>> Hi,
>>
>> This is my first email in this list, and my last chance to make my tablet
>> audio system work
>>
>> I'm trying to get my tablet audio system working but I'm run out of ideas.
>> The HP ElitePad 1000 G2 it's an Atom Z3795 1.60GHz Bay Trail-T tablet.
>>
>> I'm using a kernel 4.2.5 with all the SST configs enabled:
>>
>> CONFIG_SND_SST_MFLD_PLATFORM=m
>> CONFIG_SND_SST_IPC=m
>> CONFIG_SND_SST_IPC_ACPI=m
>> CONFIG_SND_SOC_INTEL_SST=m
>> CONFIG_SND_SOC_INTEL_SST_ACPI=m
>> CONFIG_SND_SOC_INTEL_HASWELL=m
>> CONFIG_SND_SOC_INTEL_BAYTRAIL=m
>> CONFIG_SND_SOC_INTEL_HASWELL_MACH=m
>> CONFIG_SND_SOC_INTEL_BYT_RT5640_MACH=m
>> CONFIG_SND_SOC_INTEL_BYT_MAX98090_MACH=m
>> CONFIG_SND_SOC_INTEL_BROADWELL_MACH=m
>> CONFIG_SND_SOC_INTEL_BYTCR_RT5640_MACH=m
>> CONFIG_SND_SOC_INTEL_CHT_BSW_RT5672_MACH=m
>> CONFIG_SND_SOC_INTEL_CHT_BSW_RT5645_MACH=m
>> CONFIG_SND_SOC_INTEL_CHT_BSW_MAX98090_TI_MACH=m
>> # CONFIG_SND_SOC_QCOM is not set
>> # CONFIG_SND_SOC_XTFPGA_I2S is not set
>> CONFIG_SND_SOC_I2C_AND_SPI=m
>>
>> I've follow the same steps as the installation for Asus T100TA
>> https://wiki.debian.org/InstallingDebianOn/Asus/T100TA
>>
>> and finally I only get the dmesg traces:
>>
>> sst-acpi 80860F28:00: No matching ASoC machine driver found
>> intel-sst-acpi 80860F28:00: No matching machine driver found
>>
>>   From the 'dsdt.dsl' I can see:
>>
>>           Device (I2C2)
>>           {
>>               Name (_ADR, Zero)  // _ADR: Address
>>               Name (_HID, "80860F41" /* Intel Baytrail I2C Host Controller */)  // _HID: Hardware ID
>>               Name (_CID, "80860F41" /* Intel Baytrail I2C Host Controller */)  // _CID: Compatible ID
>>               Name (_DEP, Package (0x01)  // _DEP: Dependencies
>>               {
>>                   PEPD
>>               })
>>               Name (_DDN, "Intel(R) I2C Controller #2 - 80860F42")  // _DDN: DOS Device Name
>>               Name (_UID, 0x02)  // _UID: Unique ID
>>               Name (RBUF, ResourceTemplate ()
>>               {
>>                   Memory32Fixed (ReadWrite,
>>                       0x00000000,         // Address Base
>>                       0x00001000,         // Address Length
>>                       _Y12)
>>                   Interrupt (ResourceConsumer, Level, ActiveLow, Exclusive, ,, )
>>                   {
>>                       0x00000021,
>>                   }
>>                   FixedDMA (0x0012, 0x0002, Width32bit, )
>>                   FixedDMA (0x0013, 0x0003, Width32bit, )
>>               })
>>               Method (_HRV, 0, NotSerialized)  // _HRV: Hardware Revision
>>               {
>>                   Return (SOCS) /* \SOCS */
>>               }
>>
>>               Method (_CRS, 0, NotSerialized)  // _CRS: Current Resource Settings
>>               {
>>                   CreateDWordField (RBUF, \_SB.I2C2._Y12._BAS, B0BA)  // _BAS: Base Address
>>                   CreateDWordField (RBUF, \_SB.I2C2._Y12._LEN, B0LN)  // _LEN: Length
>>                   Store (I20A, B0BA) /* \_SB_.I2C2._CRS.B0BA */
>>                   Store (I20L, B0LN) /* \_SB_.I2C2._CRS.B0LN */
>>                   Return (RBUF) /* \_SB_.I2C2.RBUF */
>>               }
>>
>>               Method (_STA, 0, NotSerialized)  // _STA: Status
>>               {
>>                   If (LOr (LEqual (I20A, Zero), LEqual (L22D, One)))
>>                   {
>>                       Return (Zero)
>>                   }
>>
>>                   Return (0x0F)
>>               }
>>
>>               Method (_PS3, 0, NotSerialized)  // _PS3: Power State 3
>>               {
>>                   Or (PSAT, 0x03, PSAT) /* \_SB_.I2C2.PSAT */
>>                   Or (PSAT, Zero, PSAT) /* \_SB_.I2C2.PSAT */
>>               }
>>
>>               Method (_PS0, 0, NotSerialized)  // _PS0: Power State 0
>>               {
>>                   And (PSAT, 0xFFFFFFFC, PSAT) /* \_SB_.I2C2.PSAT */
>>                   Or (PSAT, Zero, PSAT) /* \_SB_.I2C2.PSAT */
>>               }
>>
>>               OperationRegion (KEYS, SystemMemory, I21A, 0x0100)
>>               Field (KEYS, DWordAcc, NoLock, WriteAsZeros)
>>               {
>>                   Offset (0x84),
>>                   PSAT,   32
>>               }
>>
>>               Device (RTEK)
>>               {
>>                   Name (_ADR, Zero)  // _ADR: Address
>>                   Name (_HID, "INTCCFFD")  // _HID: Hardware ID
>>                   Name (_CID, "INTCCFFD")  // _CID: Compatible ID
>>                   Name (_DDN, "RTEK Codec Controller ")  // _DDN: DOS Device Name
>>                   Name (_UID, 0x02)  // _UID: Unique ID
>>                   Method (_CRS, 0, NotSerialized)  // _CRS: Current Resource Settings
>>                   {
>>                       Name (SBUF, ResourceTemplate ()
>>                       {
>>                           I2cSerialBus (0x001C, ControllerInitiated, 0x00061A80,
>>                               AddressingMode7Bit, "\\_SB.I2C2",
>>                               0x00, ResourceConsumer, ,
>>                               )
>>                           GpioInt (Edge, ActiveBoth, SharedAndWake, PullNone, 0x0000,
>>                               "\\_SB.GPO2", 0x00, ResourceConsumer, ,
>>                               )
>>                               {   // Pin list
>>                                   0x000E
>>                               }
>>                           GpioInt (Edge, ActiveBoth, SharedAndWake, PullNone, 0x0000,
>>                               "\\_SB.GPO0", 0x00, ResourceConsumer, ,
>>                               )
>>                               {   // Pin list
>>                                   0x0003
>>                               }
>>                           GpioInt (Edge, ActiveBoth, SharedAndWake, PullNone, 0x0000,
>>                               "\\_SB.GPO0", 0x00, ResourceConsumer, ,
>>                               )
>>                               {   // Pin list
>>                                   0x0000
>>                               }
>>                           GpioIo (Shared, PullDefault, 0x0000, 0x0000, IoRestrictionInputOnly,
>>                               "\\_SB.GPO2", 0x00, ResourceConsumer, ,
>>                               )
>>                               {   // Pin list
>>                                   0x000E
>>                               }
>>                           GpioIo (Shared, PullDefault, 0x0000, 0x0000, IoRestrictionInputOnly,
>>                               "\\_SB.GPO0", 0x00, ResourceConsumer, ,
>>                               )
>>                               {   // Pin list
>>                                   0x0003,
>>                                   0x0000
>>                               }
>>                       })
>>                       Return (SBUF) /* \_SB_.I2C2.RTEK._CRS.SBUF */
>>                   }
>>
>> What am I missing? I suppose I need some changes in the kernel sources but I don't know
>> where to start. Any help is welcome
>>
>> Regards,
>> Jorge
>>
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