Date: Wed, 28 Nov 2018 21:28:42 +1100 From: Brian Scott <bscott@bunyatech.com.au> To: Hans Petter Selasky <hps@selasky.org>, freebsd-arm@freebsd.org Subject: Re: Raspberry PI 2B/3 and USB audio Message-ID: <7bee717d-70e5-5f09-d5c4-96c72ddbd2f9@bunyatech.com.au> In-Reply-To: <c08832bf-73a0-11aa-729e-bcd4f44cbb39@selasky.org> References: <87ftw96uq0.wl-herbert@gojira.at> <6beca923-ba25-3814-6bb2-f4cc2d7360d3@selasky.org> <875zx2hyey.wl-herbert@gojira.at> <87lg5fhcgz.wl-herbert@gojira.at> <87k1kzhb8j.wl-herbert@gojira.at> <9dda25f1-9b52-2a50-1b55-00cccee8ee98@selasky.org> <856136a7-c58f-dda0-d50c-f9da55e5eb88@bunyatech.com.au> <b5d07fe0-8b1a-9b59-3241-1bfe7f72b096@selasky.org> <eeca436f-a5b3-2017-9a8d-41c8365dd46b@bunyatech.com.au> <c08832bf-73a0-11aa-729e-bcd4f44cbb39@selasky.org>
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On 28/11/18 9:22 pm, Hans Petter Selasky wrote:
> On 11/28/18 11:13 AM, Brian Scott wrote:
>> On 28/11/18 7:45 pm, Hans Petter Selasky wrote:
>>> On 11/28/18 1:46 AM, Brian Scott wrote:
>>>> On 27/11/18 6:38 pm, Hans Petter Selasky wrote:
>>>>> On 11/26/18 8:47 PM, Herbert J. Skuhra wrote:
>>>>>> Well, this USB sound card works perfectly fine on my desktop PC
>>>>>> running FreeBSD (amd64).
>>>>>
>>>>> Hi,
>>>>>
>>>>> There is a problem in the DWC OTG USB controller driver that it
>>>>> cannot
>>>>> handle the big data payload 24-bit 48KHz sampling requires.
>>>>> Unfortunately your device has only one sample size selection.
>>>>>
>>>>> If you buy a USB sound device marked as "HIGH SPEED USB" it should
>>>>> work. Yours is "spd=FULL".
>>>>>
>>>>> --HPS
>>>> Just an additional data point,
>>>>
>>>> This one also sounds like junk but is high speed:
>>>>
>>>> ugen0.6: <Generic USB Audio> at usbus0, cfg=0 md=HOST spd=HIGH
>>>> (480Mbps) pwr=ON (100mA)
>>>>
>>>> bLength = 0x0012
>>>> bDescriptorType = 0x0001
>>>> bcdUSB = 0x0200
>>>> bDeviceClass = 0x0000 <Probed by interface class>
>>>> bDeviceSubClass = 0x0000
>>>> bDeviceProtocol = 0x0000
>>>> bMaxPacketSize0 = 0x0040
>>>> idVendor = 0x0bda
>>>> idProduct = 0x4040
>>>> bcdDevice = 0x0000
>>>> iManufacturer = 0x0003 <Generic>
>>>> iProduct = 0x0001 <USB Audio>
>>>> iSerialNumber = 0x0002 <201405280001>
>>>> bNumConfigurations = 0x0001
>>>>
>>>> But I notice that it handles both 48000 and 8000 according to the
>>>> sound
>>>> driver.
>>>>
>>>> cat /dev/sndstat
>>>> FreeBSD Audio Driver (64bit 2009061500/aarch64)
>>>> Installed devices:
>>>> pcm0: <USB audio> at ? kld snd_uaudio (1p:1v/1r:1v) default
>>>> snddev flags=0x2e2<AUTOVCHAN,BUSY,MPSAFE,REGISTERED,VPC>
>>>> [pcm0:play:dsp0.p0]: spd 48000, fmt 0x00200010, flags
>>>> 0x00002100, 0x00000004
>>>> interrupts 0, underruns 0, feed 0, ready 0
>>>> [b:3072/1536/2|bs:4096/2048/2]
>>>> channel flags=0x2100<BUSY,HAS_VCHAN>
>>>> {userland} -> feeder_mixer(0x00200010) -> {hardware}
>>>> pcm0:play:dsp0.p0[pcm0:virtual:dsp0.vp0]: spd 8000, fmt
>>>> 0x00100008, flags 0x10000000, 0x00000000
>>>> interrupts 0, underruns 0, feed 0, ready 0
>>>> [b:0/0/0|bs:0/0/0]
>>>> channel flags=0x10000000<VIRTUAL>
>>>> {userland} -> feeder_root(0x00000000) -> {hardware}
>>>> [pcm0:record:dsp0.r0]: spd 48000,fmt 0x00200010/0x00210000,
>>>> flags 0x00002100, 0x00000007
>>>> interrupts 0, overruns 0, feed 0, hfree 4608, sfree 4096
>>>> [b:4608/2304/2|bs:4096/2048/2]
>>>> channel flags=0x2100<BUSY,HAS_VCHAN>
>>>> {hardware} -> feeder_root(0x00210000) ->
>>>> feeder_format(0x00210000 -> 0x00200010) ->
>>>> feeder_mixer(0x00200010)
>>>> -> {userland}
>>>> pcm0:record:dsp0.r0[pcm0:virtual:dsp0.vr0]: spd 8000, fmt
>>>> 0x00100008, flags 0x10000000, 0x00000000
>>>> interrupts 0, overruns 0, feed 0, hfree 0, sfree 0
>>>> [b:0/0/0|bs:0/0/0]
>>>> channel flags=0x10000000<VIRTUAL>
>>>> {hardware} -> feeder_root(0x00000000) -> {userland}
>>>> No devices installed from userspace.
>>>>
>>>> Output sounds like rubbish with both 8000 speed stuff sent directly to
>>>> /dev/dsp using cat and higher quality stuff sent via sox play.
>>>>
>>>> It could also just be a junk piece of hardware from my local
>>>> electronics
>>>> shop.
>>>
>>> Which version of FreeBSD is this?
>>>
>>> Can you show dmesg?
>>>
>>> --HPS
>>>
>> 12.0 RC2 with /boot and /boot/msdos on sdcard and everything else on USB
>> connected hard drive (causing interference with the bus?). Otherwise
>> everything directly off the RC2 image + packages and a bit of
>> configuration.
>>
>> On repeating my tests (probably last done a few months ago with the
>> current snapshot) the sound was much better than I remember (almost
>> recognisable!). Maybe having the non-debug kernel is helping. Hope this
>> isn't a red herring.
>>
>
> Can you set the:
>
> sysctl dev.pcm.0.play.vchanrate=48000
> sysctl dev.pcm.0.rec.vchanrate=48000
>
> And try again?
>
> --HPS
Already set:
#sysctl dev.pcm.0
dev.pcm.0.feedback_rate: 0
dev.pcm.0.mixer.mute_4.desc: 201405280001
dev.pcm.0.mixer.mute_4.max: 1
dev.pcm.0.mixer.mute_4.min: 0
dev.pcm.0.mixer.mute_4.val: 1
dev.pcm.0.mixer.vol_3_1.desc: 201405280001
dev.pcm.0.mixer.vol_3_1.max: 0
dev.pcm.0.mixer.vol_3_1.min: -16800
dev.pcm.0.mixer.vol_3_1.val: -2153
dev.pcm.0.mixer.vol_3_0.desc: 201405280001
dev.pcm.0.mixer.vol_3_0.max: 0
dev.pcm.0.mixer.vol_3_0.min: -16800
dev.pcm.0.mixer.vol_3_0.val: -2153
dev.pcm.0.mixer.mute_2.desc: 201405280001
dev.pcm.0.mixer.mute_2.max: 1
dev.pcm.0.mixer.mute_2.min: 0
dev.pcm.0.mixer.mute_2.val: 1
dev.pcm.0.mixer.vol_1_1.desc: 201405280001
dev.pcm.0.mixer.vol_1_1.max: 0
dev.pcm.0.mixer.vol_1_1.min: -8576
dev.pcm.0.mixer.vol_1_1.val: -2153
dev.pcm.0.mixer.vol_1_0.desc: 201405280001
dev.pcm.0.mixer.vol_1_0.max: 0
dev.pcm.0.mixer.vol_1_0.min: -8576
dev.pcm.0.mixer.vol_1_0.val: -2153
dev.pcm.0.mixer.(null)_0.desc:
dev.pcm.0.mixer.(null)_0.max: 1
dev.pcm.0.mixer.(null)_0.min: 0
dev.pcm.0.mixer.(null)_0.val: 1
dev.pcm.0.bitperfect: 0
dev.pcm.0.buffersize: 0
dev.pcm.0.rec.vchanformat: s16le:2.0
dev.pcm.0.rec.vchanrate: 48000
dev.pcm.0.rec.vchanmode: fixed
dev.pcm.0.rec.vchans: 1
dev.pcm.0.play.vchanformat: s16le:2.0
dev.pcm.0.play.vchanrate: 48000
dev.pcm.0.play.vchanmode: fixed
dev.pcm.0.play.vchans: 1
dev.pcm.0.hwvol_mixer: vol
dev.pcm.0.hwvol_step: 5
dev.pcm.0.%parent: uaudio0
dev.pcm.0.%pnpinfo:
dev.pcm.0.%location:
dev.pcm.0.%driver: pcm
dev.pcm.0.%desc: USB audio
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