Hi Minas,
Last week I was able to install g_zero driver on the device side. And I installed usbtest.ko as a static driver on the linux host kernel running kernel version 5.0.9.
On the host I see -
[palakshah@localhost usb]$ lsusb
Bus 002 Device 002: ID 8087:8000 Intel Corp.
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:8008 Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 006: ID 0525:a4a0 Netchip Technology, Inc. Linux-USB "Gadget Zero" // g_zero driver
Bus 003 Device 002: ID 04b4:0101 Cypress Semiconductor Corp. Keyboard/Hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
I ran the test
[palakshah@localhost usb]$ sudo ./testusb -a
unknown speed /dev/bus/usb/003/006 0
/dev/bus/usb/003/006 test 0, 0.000013 secs
/dev/bus/usb/003/006 test 1, 0.216270 secs
/dev/bus/usb/003/006 test 2, 0.096186 secs
/dev/bus/usb/003/006 test 3, 0.216282 secs
/dev/bus/usb/003/006 test 4, 0.096046 secs
/dev/bus/usb/003/006 test 5, 2.870960 secs
/dev/bus/usb/003/006 test 6, 3.055972 secs
/dev/bus/usb/003/006 test 7, 2.872110 secs
/dev/bus/usb/003/006 test 8, 3.059713 secs
/dev/bus/usb/003/006 test 9, 8.601377 secs
/dev/bus/usb/003/006 test 10, 26.794975 secs
/dev/bus/usb/003/006 test 11, 4.006801 secs
/dev/bus/usb/003/006 test 12, 4.002395 secs
/dev/bus/usb/003/006 test 13, 4.874480 secs
/dev/bus/usb/003/006 test 14 --> 22 (Invalid argument)
/dev/bus/usb/003/006 test 17, 0.185385 secs
/dev/bus/usb/003/006 test 18, 0.098154 secs
/dev/bus/usb/003/006 test 19, 0.197473 secs
/dev/bus/usb/003/006 test 20, 0.098188 secs
/dev/bus/usb/003/006 test 21 --> 22 (Invalid argument)
Atleast now I can run some of the tests, however I am interested in the ISOC transfer, which is tested using t15 and t16. But test 15 and 16 did not run.
I put more messages in the code and I found that, it exits both the tests -
if (dev->out_iso_pipe == 0 || param->sglen == 0){
pr_info("TEST 15: dev->out_iso_pipe == 0 || param->sglen == 0 Error condition!!\n");
break;
}
I put more messages in the code, and I realize that dev->out_iso_pipe is null.
if (dev->in_pipe){
printk("dev->in_pipe is true\n"); this gets printed
rtest = " bulk-in";
}
if (dev->out_pipe){
printk("dev->out_pipe is true\n"); this gets printed
wtest = " bulk-out";
}
if (dev->in_iso_pipe){
printk("dev->in_iso_pipe is true\n"); // this doesn't get printed.
irtest = " iso-in";
}
if (dev->out_iso_pipe){
printk("dev->out_iso_pipe is true\n"); // not printed
iwtest = " iso-out";
}
Some dmesg messages that I printed, it prints in_pipe and out_pipe is true for BULK transfer, but ISOC transfer is not set.
[ 2.051466] usb 3-8: New USB device found, idVendor=0525, idProduct=a4a0, bcdDevice= 5.04
[ 2.051468] usb 3-8: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 2.051469] usb 3-8: Product: Gadget Zero
[ 2.051470] usb 3-8: Manufacturer: Linux 5.4.80-kx4 with ffb40000.usb
[ 2.051471] usb 3-8: SerialNumber: 0123456789.0123456789.0123456789
[ 2.053199] USBTEST.ko usbtest_probe!!!
[ 2.053200] dev->in_pipe is true
[ 2.053200] dev->out_pipe is true
[ 2.053201] USBTEST : Linux gadget zero
[ 2.053202] USBTEST high-speed {control in/out bulk-in bulk-out} tests (+alt)
[ 2.166449] usb 3-10: new low-speed USB device number 3 using xhci_hcd
Any idea how I can test ISOC test?
Thanks,
Palak
-----Original Message-----
From: Minas Harutyunyan <Minas.Harutyunyan@xxxxxxxxxxxx>
Sent: Friday, March 10, 2023 4:04 AM
To: Palak SHAH <palak.shah@xxxxxxxxxxx>; Maynard CABIENTE <maynard.cabiente@xxxxxxxxxxx>
Cc: linux-usb@xxxxxxxxxxxxxxx
Subject: RE: usb: gadget: dwc2: not getting audio data
Hi Palak,
>On 3/9/2023 8:21 PM, Palak SHAH wrote:
>From: Palak SHAH <palak.shah@xxxxxxxxxxx>
>Sent: Thursday, March 9, 2023 8:21 PM
>To: Minas Harutyunyan <hminas@xxxxxxxxxxxx>; Maynard CABIENTE
><maynard.cabiente@xxxxxxxxxxx>
>Cc: linux-usb@xxxxxxxxxxxxxxx
>Subject: RE: usb: gadget: dwc2: not getting audio data
>
>Hi Minas,
>Yes I do have g_audio module loaded.
>
>This dmesg logs are from my device -
>[ 1151.517385] g_audio gadget: Linux USB Audio Gadget, version: Feb 2,
>2012 [ 1151.517401] g_audio gadget: g_audio ready [ 1151.517418] dwc2
>ffb00000.usb: bound driver g_audio [ 1151.640143] dwc2 ffb40000.usb:
>bound driver configfs-gadget [ 1151.808188] dwc2 ffb40000.usb: new
>device is high- speed [ 1151.922374] dwc2 ffb40000.usb: new device is
>high-speed [ 1151.982406] dwc2 ffb40000.usb: new address 24 [
>1151.996762] configfs- gadget gadget: high-speed config #1: c
>
># lsmod
>Module Size Used by
>usb_f_uac1 20480 3
>u_audio 20480 1 usb_f_uac1
>snd_pcm 94208 1 u_audio
>snd_timer 36864 1 snd_pcm
>g_audio 16384 0
>usb_f_hid 20480 9
>libcomposite 61440 16 usb_f_uac1,u_audio,g_audio,usb_f_hid
>
>This is my host -
>[palakshah@fedora ~]$ lsusb
>Bus 002 Device 002: ID 0bda:0328 Realtek Semiconductor Corp. USB3.0-CRW
>Bus
>002 Device 003: ID 0bda:0411 Realtek Semiconductor Corp. Hub Bus 002
>Device
>001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 023: ID
>14dd:1010 Raritan Computer, Inc. KX4-101 // this is my device that I am
>connected to.
>Bus 001 Device 002: ID 14dd:1007 Raritan Computer, Inc. D2CIM-VUSB KVM
>connector Bus 001 Device 005: ID 8087:0a2b Intel Corp. Bluetooth
>wireless interface Bus 001 Device 004: ID 0bda:5411 Realtek Semiconductor Corp.
>RTS5411 Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root
>hub
>
>[palakshah@fedora ~]$ sudo ./testusb -D /dev/bus/usb/001/023 -t15
>[sudo] password for palakshah:
>./testusb: /dev/bus/usb/001/023 may see only control tests
>/dev/bus/usb/001/023 test 15 --> 25 (Inappropriate ioctl for device)
>
>[palakshah@fedora ~]$ sudo ./testusb -D /dev/bus/usb/001/023 -t16
>./testusb: /dev/bus/usb/001/023 may see only control tests
>/dev/bus/usb/001/023 test 16 --> 25 (Inappropriate ioctl for device)
>
>But still host cannot talk to the device.
>
On host side should be loaded module usbtest.ko On device side remove your function(gadget) driver, instead load g_zero (not g_audio) function.
Thanks,
Minas
>Thanks,
>Palak
>
>-----Original Message-----
>From: Minas Harutyunyan <Minas.Harutyunyan@xxxxxxxxxxxx>
>Sent: Thursday, March 9, 2023 5:03 AM
>To: Palak SHAH <palak.shah@xxxxxxxxxxx>; Maynard CABIENTE
><maynard.cabiente@xxxxxxxxxxx>
>Cc: linux-usb@xxxxxxxxxxxxxxx
>Subject: RE: usb: gadget: dwc2: not getting audio data
>
>Hi Palak,
>
>>On 3/9/2023 1:42 AM, Palak SHAH wrote:
>>From: Palak SHAH <palak.shah@xxxxxxxxxxx>
>>Sent: Thursday, March 9, 2023 1:42 AM
>>To: Minas Harutyunyan <hminas@xxxxxxxxxxxx>; Maynard CABIENTE
>><maynard.cabiente@xxxxxxxxxxx>
>>Cc: linux-usb@xxxxxxxxxxxxxxx
>>Subject: RE: usb: gadget: dwc2: not getting audio data
>>
>>Hi Minas,
>>A while ago, I asked you if I can run a usb test, to test IP core,
>>without doing audio test.
>>
>>You had suggested that to test usbtest program (see
>>https://urldefense.com/v3/__https://eur01.safelinks.protection.outlook.
>>com/?url=https*3A*2F*2Furldefense.com*2Fv3*2F__https*3A*2F*2Feur01.saf
>>e
>>links.protection.outlook.com*2F&data=05*7C01*7Cpalak.shah*40raritan.co
>>m
>>*7Ce899edf3108b4733963408db2085841d*7C199686b5bef4496087867a6b1888fee3
>>*
>>7C1*7C0*7C638139530054005175*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwM
>>D
>>AiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7C&sdata
>>=
>>efRKGkGDjq5OhK347*2B6r2*2FaXjZy4wysBzzl5XezhEZo*3D&reserved=0*__;JSUlJ
>>S
>>UlJSUlJSUlJSUlJSUlJSUlJSUlJSUlPw!!A4F2R9G_pg!fXoTRt1krMtYNUcU033cc_CYw
>>9 YrC_nUj99EXR4vAwT-hb3T78zqvyakXvx4elweFNfmoHxwarh2RDYX7L7rJqCcWz9z$
>>url=http*3A*2F*2Fwww.linux-
>>usb.org*2Fusbtest*2F&data=05*7C01*7Cpalak.shah*40raritan.com*7Ccdc9cf1
>>8
>>d5c54
>>b2c74fc08daf53d681e*7C199686b5bef4496087867a6b1888fee3*7C1*7C0*7C63809
>>1
>>94134
>>5558693*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLC
>>J
>>BTiI6
>>Ik1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7C&sdata=OIiLXl6dlCHlfACx6ZxpLhQkp
>>0
>>7xIwb
>>qAR3CtnqfsFU*3D&reserved=0__;JSUlJSUlJSUlJSUlJSUlJSUlJSUl!!A4F2R9G_pg!
>>f
>>3GN6S
>>P6NM--pKekkA-jG4RICPguFvb3DNeRO6jFDEhovrY3IEC2-
>>aL0ay4g95j7BsdRM6JRGwjL6kPzTS8z13tShKOe$ )
>>
>>So I tried this program. I compiled it on my linux host, and run it on
>>the host, which is connected to the Linux device acting as USB gadget.
>>
>>I am running test t15 and t16 which is for ISOC. Infact I tried
>>running
>all.
>>I ran it on the host device. And I get this error -
>>
>>[palakshah@fedora ~]$ sudo ./testusb -D /dev/bus/usb/001/019 -t15
>>./testusb: /dev/bus/usb/001/019 may see only control tests
>>/dev/bus/usb/001/019 test 15 --> 25 (Inappropriate ioctl for device)
>>
>>Either I get error 25 (Inappropriate ioctl for device) or error 38
>>(Function Not Implemented).
>>
>>If I do, [palakshah@fedora ~]$ sudo ./testusb -a no test devices
>>recognized
>>
>>I tried to google, why these tests don't work, but did not find
>>anything useful. Do you have any idea?
>>
>
>Did you modprobe g_zero module on device side?
>lsusb command should show that connected device:
>...
>Bus 001 Device 002: ID 0525:a4a0 Netchip Technology, Inc. Linux-USB
>"Gadget Zero"
>...
>
>Thanks,
>Minas
>
>>Thanks,
>>Palak
>>
>>-----Original Message-----
>>From: Minas Harutyunyan <Minas.Harutyunyan@xxxxxxxxxxxx>
>>Sent: Monday, March 6, 2023 11:31 PM
>>To: Palak SHAH <palak.shah@xxxxxxxxxxx>; Maynard CABIENTE
>><maynard.cabiente@xxxxxxxxxxx>
>>Cc: linux-usb@xxxxxxxxxxxxxxx
>>Subject: RE: usb: gadget: dwc2: not getting audio data
>>
>>Hi Palak,
>>
>>>On 3/6/2023 8:26 AM, Palak SHAH wrote:
>>>From: Palak SHAH <palak.shah@xxxxxxxxxxx>
>>>Sent: Monday, March 6, 2023 8:26 PM
>>>To: Minas Harutyunyan <hminas@xxxxxxxxxxxx>; Maynard CABIENTE
>>><maynard.cabiente@xxxxxxxxxxx>
>>>Cc: linux-usb@xxxxxxxxxxxxxxx
>>>Subject: RE: usb: gadget: dwc2: not getting audio data
>>>
>>>Hi Minas,
>>>
>>>>I can recommend you:
>>>>1. disable debug prints to minimize platform loading
>>>
>>>[Palak] I am working on this
>>>
>>>>2. change Descriptor DMA mode to Buffer DMA
>>>
>>>[Palak] Can you please explain this more, what does this mean?
>>
>>Core can work in 3 different modes to transferring data between FIFO
>>and
>>RAM: Slave, Buffer DMA and Descriptor DMA.
>>
>>To switch from DDMA to BDMA in file params.c file in function
>>dwc2_set_default_params()
>> ...
>> if ((hsotg->dr_mode == USB_DR_MODE_PERIPHERAL) ||
>> (hsotg->dr_mode == USB_DR_MODE_OTG)) {
>> p->g_dma = dma_capable;
>> p->g_dma_desc = hw->dma_desc_enable;
>> ...
>>Update last line to
>> p->g_dma_desc = 0;
>>
>>Thanks,
>>Minas
>>
>>>
>>>Thanks,
>>>Palak
>>>
>>>-----Original Message-----
>>>From: Minas Harutyunyan <Minas.Harutyunyan@xxxxxxxxxxxx>
>>>Sent: Thursday, March 2, 2023 11:35 PM
>>>To: Palak SHAH <palak.shah@xxxxxxxxxxx>; Maynard CABIENTE
>>><maynard.cabiente@xxxxxxxxxxx>
>>>Cc: linux-usb@xxxxxxxxxxxxxxx
>>>Subject: RE: usb: gadget: dwc2: not getting audio data
>>>
>>>Hi Palak,
>>>
>>>>On 2/28/2023 12:21 AM, Palak SHAH wrote:
>>>>From: Palak SHAH <palak.shah@xxxxxxxxxxx>
>>>>Sent: Tuesday, February 28, 2023 12:21 AM
>>>>To: Minas Harutyunyan <hminas@xxxxxxxxxxxx>; Maynard CABIENTE
>>>><maynard.cabiente@xxxxxxxxxxx>
>>>>Cc: linux-usb@xxxxxxxxxxxxxxx
>>>>Subject: RE: usb: gadget: dwc2: not getting audio data
>>>>
>>>>Hi Minas,
>>>>I have attached the following USB traces and debug log.
>>>>1) dmesg and usb sniffer logs during driver loading.
>>>>
>>>>2) EP1(OUT) - I play AUDIO on the HOST. And I do arecord on the
>>>>linux device that acts as USB gadget. So the audio is going OUT from
>>>>the host. So you will see EP1 OUT.
>>>>I have attached logs and USB sniffer data, during arecord.
>>>>
>>>>I am not testing ISOC EP1(IN) yet. I am still seeing and debugging
>>>>issues with Ep1(out).
>>>>
>>>>3) When I change UAC1_DEF_REQ_NUM 2 changed to 32, the problem STILL
>>>>exist with EP1(OUT). ONLY log behaivor is different. In the log I
>>>>see XferCompl, but I don't get any data in the arecord.
>>>>I have attached 2 files. Arecord_command.txt shows what I run.
>>>>Arecord_output shows what I get after I run the command.
>>>>
>>>>4) I sent you regdump, hw_params, params and fifo in the previous email.
>>>>
>>>
>>>I'm not find any issue based on the '_arecord.txt', just again 7
>>>second time
>>>gap:
>>>
>>>[ 228.173271] dwc2 ffb40000.usb: dwc2_hsotg_epint: At the end of the
>>>function, dwc2_hsotg_epint() [ 228.173271] [ 235.536299] dwc2
>>>ffb40000.usb: dwc2_hsotg_ep_queue, ep1out: req 777cd34b: req
>>>len(200)@req buf(af65750d), # of int=0, req zero=0, snok(short not
>>>ok)=0
>>>
>>>I can recommend you:
>>>1. disable debug prints to minimize platform loading 2. change
>>>Descriptor DMA mode to Buffer DMA
>>>
>>>Thanks,
>>>Minas
>>>
>>>
>>>>Thanks,
>>>>Palak
>>>>
>>>>-----Original Message-----
>>>>From: Minas Harutyunyan <Minas.Harutyunyan@xxxxxxxxxxxx>
>>>>Sent: Monday, February 27, 2023 5:18 AM
>>>>To: Palak SHAH <palak.shah@xxxxxxxxxxx>; Maynard CABIENTE
>>>><maynard.cabiente@xxxxxxxxxxx>
>>>>Cc: linux-usb@xxxxxxxxxxxxxxx
>>>>Subject: RE: usb: gadget: dwc2: not getting audio data
>>>>
>>>>Hi Palak,
>>>>
>>>>>On 2/27/2023 6:02 AM, Palak SHAH wrote:
>>>>>From: Palak SHAH <palak.shah@xxxxxxxxxxx>
>>>>>Sent: Monday, February 27, 2023 6:02 AM
>>>>>To: Minas Harutyunyan <hminas@xxxxxxxxxxxx>; Maynard CABIENTE
>>>>><maynard.cabiente@xxxxxxxxxxx>
>>>>>Cc: linux-usb@xxxxxxxxxxxxxxx
>>>>>Subject: RE: usb: gadget: dwc2: not getting audio data
>>>>>
>>>>>Hi Minas,
>>>>>Please find attached the logs - regdump, hw_params, params and
>>>>>fifo, taken when the driver is loaded.
>>>>>
>>>>>I will send the USB traces tomorrow.
>>>>
>>>>
>>>>USB trace for arecord (EP1IN ISOC) and debug log.
>>>>
>>>>
>>>>Could you please confirm that after defining UAC1_DEF_REQ_NUM to 32
>>>>playing audio (EP1OUT ISOC) no any issue seen?
>>>>
>>>>Thanks,
>>>>Minas
>>>>
>>>>>
>>>>>Thanks,
>>>>>Palak
>>>>>
>>>>>-----Original Message-----
>>>>>From: Minas Harutyunyan <Minas.Harutyunyan@xxxxxxxxxxxx>
>>>>>Sent: Friday, February 24, 2023 5:33 AM
>>>>>To: Palak SHAH <palak.shah@xxxxxxxxxxx>; Maynard CABIENTE
>>>>><maynard.cabiente@xxxxxxxxxxx>
>>>>>Cc: linux-usb@xxxxxxxxxxxxxxx
>>>>>Subject: RE: usb: gadget: dwc2: not getting audio data
>>>>>
>>>>>Hi Polak,
>>>>>
>>>>>>On 2/24/2023 3:04 AM, Palak SHAH wrote:
>>>>>>From: Palak SHAH <palak.shah@xxxxxxxxxxx>
>>>>>>Sent: Friday, February 24, 2023 3:04 AM
>>>>>>To: Minas Harutyunyan <hminas@xxxxxxxxxxxx>; Maynard CABIENTE
>>>>>><maynard.cabiente@xxxxxxxxxxx>
>>>>>>Cc: linux-usb@xxxxxxxxxxxxxxx
>>>>>>Subject: RE: usb: gadget: dwc2: not getting audio data
>>>>>>
>>>>>>Hi Minas,
>>>>>>I have attached the log where I connect to the audio gadget (and
>>>>>>therefore, load the driver). We can do it using command line on a
>>>>>>serial prompt or using GUI and connecting to Audio gadget.
>>>>>>
>>>>>>However, in both cases, I don't see any EP1(out) data and the
>>>>>>register
>>>>>dump.
>>>>>>Ep1out comes out only when I play a you tube video and I do
>>>>>>arecord to capture data.
>>>>>
>>>>>According your device configuration EP1(out) using when you play
>>>>>audio, and
>>>>>EP1(in) using when you record audio by arecord.
>>>>>So, after driver loading these both ISOC EP's will not seen in log
>>>>>until aplay/arecord will not run.
>>>>>
>>>>>>
>>>>>>Please let me know if the log doesn't have the information you need.
>>>>>
>>>>>No, it's again dmesg. I asked for core all register dump which
>>>>>available under debugfs's. dwc2 debugfs's under follow directory:
>>>>>/sys/kernel/debug/usb/dwc2.2.auto/
>>>>>In your case 'dwc2.2.auto' can be little bit different. In this
>>>>>directory there are files regdump, hw_params, params, fifo, etc.
>>>>>Just use 'cat regdump'
>>>>>to get register dump. Please also provide me cat of hw_params,
>>>>>params and fifo. These last 3 files need to cat just once after
>>>>>driver
>loading.
>>>>>
>>>>>>
>>>>>>Also, I tried changing UAC1_DEF_REQ_NUM 2 changed to 32. I saw a
>>>>>>change in the behaivor of logs, I got XferCompl all the time, and
>>>>>>not
>>>>ep_disabled.
>>>>>
>>>>>So, after defining UAC1_DEF_REQ_NUM to 32 playing audio (ep1out)
>>>>>work without any issue? And increasing req number to 32 fixed issue
>>>>>which we debug till now?
>>>>>
>>>>>>However, arecord behaivor did not change, meaning I still did not
>>>>>>get the data. It only changed the logging behaivor.
>>>>>
>>>>>If you still see issues with arecord (ep1in) then please provide me
>>>>>debug log for this case and USB trace by Ellisys.
>>>>>
>>>>>Thanks,
>>>>>Minas
>>>>>
>>>>>
>
>
>________________________________
>
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Ce message, ainsi que tous les fichiers joints à ce message, peuvent contenir des informations sensibles et/ ou confidentielles ne devant pas être divulguées. Si vous n'êtes pas le destinataire de ce message (ou que vous recevez ce message par erreur), nous vous remercions de le notifier immédiatement à son expéditeur, et de détruire ce message. Toute copie, divulgation, modification, utilisation ou diffusion, non autorisée, directe ou indirecte, de tout ou partie de ce message, est strictement interdite.
This e-mail, and any document attached hereby, may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorized, direct or indirect, copying, disclosure, distribution or other use of the material or parts thereof is strictly forbidden.
