Hi Palak, >On 2/23/2023 12:51 AM, Palak SHAH wrote: >From: Palak SHAH <palak.shah@xxxxxxxxxxx> >Sent: Thursday, February 23, 2023 12:51 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 applied the patch you sent and I have attached the logs. Around 197 secs, >there is a gap of 8 seconds and jumps to 205 secs. > >[ 197.618605] dwc2 ffb40000.usb: dwc2_gadget_read_ep_interrupts [ >197.618628] dwc2 ffb40000.usb: dwc2_hsotg_epint: ep1(out) DxEPINT=0x00000001 >[ 197.618652] dwc2 ffb40000.usb: dwc2_hsotg_epint: XferCompl: >DxEPCTL=0x800480c8, DXEPTSIZ=0ec10070 [ 197.618668] dwc2 ffb40000.usb: >dwc2_hsotg_epint: calling dwc2_gadget_complete_isoc_request_ddma >[ 197.618680] dwc2 ffb40000.usb: dwc2_gadget_complete_isoc_request_ddma: >calling dwc2_hsotg_complete_request() [ 197.618705] dwc2 ffb40000.usb: >dwc2_hsotg_complete_request, complete: ep 47138ecf ep1out, req 516c0b0e, 0 >=> db2182cd [ 197.618730] dwc2 ffb40000.usb: dwc2_hsotg_ep_queue, ep1out: >req 516c0b0e: req len(200)@req buf(68be9ea5), # of int=0, req zero=0, >snok(short not ok)=0 [ 197.618743] dwc2 ffb40000.usb: dwc2_hsotg_ep_queue, >EP #(ep1out) Handle DDMA isochronous transfers separately. >[ 197.618752] dwc2 ffb40000.usb: ENTERING dwc2_gadget_fill_isoc_desc [ >197.618763] dwc2 ffb40000.usb: dwc2_gadget_fill_isoc_desc: Filling ep 1, dir >(out) isoc desc # (41) [ 197.618786] dwc2 ffb40000.usb: >dwc2_gadget_complete_isoc_request_ddma: compl_desc # 39 [ 197.618807] dwc2 >ffb40000.usb: dwc2_hsotg_epint: At the end of the function, >dwc2_hsotg_epint() [ 197.618807] > >------ GAP of 8 secs ------------------------------- > >[ 205.262626] dwc2 ffb40000.usb: dwc2_hsotg_irq: daint=00020000 [ >205.264633] dwc2 ffb40000.usb: dwc2_hsotg_irq: daint=00020000 [ 205.264642] >dwc2 ffb40000.usb: dwc2_hsotg_irq, calling dwc2_hsotg_epint 0 [ 205.264651] >dwc2 ffb40000.usb: ENTERING dwc2_hsotg_epint: EP(1) DIRECTION (out) [ >205.264659] dwc2 ffb40000.usb: dwc2_gadget_read_ep_interrupts [ 205.264669] >dwc2 ffb40000.usb: dwc2_hsotg_epint: ep1(out) DxEPINT=0x00000010 [ >205.264678] dwc2 ffb40000.usb: dwc2_hsotg_epint, calling >dwc2_gadget_handle_out_token_ep_disabled >[ 205.264687] dwc2 ffb40000.usb: dwc2_gadget_handle_out_token_ep_disabled: >target_frame = 0x00002a80 [ 205.264695] dwc2 ffb40000.usb: ENTERING >dwc2_gadget_start_isoc_ddma [ 205.264715] dwc2 ffb40000.usb: ENTERING >dwc2_gadget_fill_isoc_desc [ 205.264725] dwc2 ffb40000.usb: >dwc2_gadget_fill_isoc_desc: Filling ep 1, dir (out) isoc desc # (0) [ >205.264733] dwc2 ffb40000.usb: ENTERING dwc2_gadget_fill_isoc_desc [ >205.264743] dwc2 ffb40000.usb: dwc2_gadget_fill_isoc_desc: Filling ep 1, dir >(out) isoc desc # (1) [ 205.264758] dwc2 ffb40000.usb: >dwc2_gadget_start_isoc_ddma: GRXSTSR=0xfefafe10 DCFG==0x008402c0 >DCTL=0x00000000 DSTS=0x002a8900 DxEPCTL(1)=0x800480c8 [ 205.264767] dwc2 >ffb40000.usb: dwc2_hsotg_epint: At the end of the function, >dwc2_hsotg_epint() > According log in dwc2_gadget_start_isoc_ddma() EP successfully enabled: DxEPCTL(1)=0x800480c8, but looks like GRXSTSR=0xfefafe10 contain garbage, more probably it's data pattern from ISOC OUT packet. Could you please send me register dump for follow cases: 1. After driver loading 2. After connecting to host, but not start any play audio 3. After issue seen (after DXEPINT_OUTTKNEPDIS interrupts started) Thanks, Minas
