From: Wesley Cheng <quic_wcheng@quicinc.com> To: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>, <srinivas.kandagatla@linaro.org>, <mathias.nyman@intel.com>, <perex@perex.cz>, <lgirdwood@gmail.com>, <andersson@kernel.org>, <krzysztof.kozlowski+dt@linaro.org>, <gregkh@linuxfoundation.org>, <Thinh.Nguyen@synopsys.com>, <broonie@kernel.org>, <bgoswami@quicinc.com>, <tiwai@suse.com>, <robh+dt@kernel.org>, <agross@kernel.org> Cc: devicetree@vger.kernel.org, alsa-devel@alsa-project.org, linux-arm-msm@vger.kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, quic_jackp@quicinc.com, quic_plai@quicinc.com Subject: Re: [RFC PATCH v2 11/22] ASoC: qcom: Add USB backend ASoC driver for Q6 Date: Mon, 30 Jan 2023 14:59:38 -0800 [thread overview] Message-ID: <4a255518-6fbb-122a-ba97-1e995785c35f@quicinc.com> (raw) In-Reply-To: <7f471960-0909-4680-e192-261d1fdfe6d7@linux.intel.com> Hi Pierre, On 1/26/2023 7:44 AM, Pierre-Louis Bossart wrote: > > > On 1/25/23 21:14, Wesley Cheng wrote: >> Create a USB BE component that will register a new USB port to the ASoC USB >> framework. This will handle determination on if the requested audio >> profile is supported by the USB device currently selected. > > Can you clarify how? because ... > > >> +static struct snd_soc_dai_driver q6usb_be_dais[] = { >> + { >> + .playback = { >> + .stream_name = "USB BE RX", >> + .rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 | >> + SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | >> + SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | >> + SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 | >> + SNDRV_PCM_RATE_192000, >> + .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE | >> + SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE | >> + SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE | >> + SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, >> + .channels_min = 1, >> + .channels_max = 2, >> + .rate_max = 192000, >> + .rate_min = 8000, >> + }, >> + .id = USB_RX, >> + .name = "USB_RX_BE", >> + .ops = &q6usb_ops, >> + }, >> +}; > > ... here I see a single DAI, so presumably ONE endpoint can be supported? > One USB audio device can be supported. one AFE port = one USB audio device > I didn't see in the rest of the code how a card with multiple endpoint > would be rejected, nor how the capabilities are checked? > Need to take a look at this query a bit more. Let me try to pass in a format that can't be supported by the audio DSP, and see if the formats specified in this structure will not allow userspace to start the session. When you say a "card with multiple endpoints" are you referring to a USB device that exposes multiple data (ISOC let's say) eps for its data interface? I haven't run into a device like that. Thanks Wesley Cheng
WARNING: multiple messages have this Message-ID (diff)
From: Wesley Cheng <quic_wcheng@quicinc.com> To: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>, <srinivas.kandagatla@linaro.org>, <mathias.nyman@intel.com>, <perex@perex.cz>, <lgirdwood@gmail.com>, <andersson@kernel.org>, <krzysztof.kozlowski+dt@linaro.org>, <gregkh@linuxfoundation.org>, <Thinh.Nguyen@synopsys.com>, <broonie@kernel.org>, <bgoswami@quicinc.com>, <tiwai@suse.com>, <robh+dt@kernel.org>, <agross@kernel.org> Cc: <devicetree@vger.kernel.org>, <alsa-devel@alsa-project.org>, <linux-arm-msm@vger.kernel.org>, <linux-usb@vger.kernel.org>, <linux-kernel@vger.kernel.org>, <quic_jackp@quicinc.com>, <quic_plai@quicinc.com> Subject: Re: [RFC PATCH v2 11/22] ASoC: qcom: Add USB backend ASoC driver for Q6 Date: Mon, 30 Jan 2023 14:59:38 -0800 [thread overview] Message-ID: <4a255518-6fbb-122a-ba97-1e995785c35f@quicinc.com> (raw) In-Reply-To: <7f471960-0909-4680-e192-261d1fdfe6d7@linux.intel.com> Hi Pierre, On 1/26/2023 7:44 AM, Pierre-Louis Bossart wrote: > > > On 1/25/23 21:14, Wesley Cheng wrote: >> Create a USB BE component that will register a new USB port to the ASoC USB >> framework. This will handle determination on if the requested audio >> profile is supported by the USB device currently selected. > > Can you clarify how? because ... > > >> +static struct snd_soc_dai_driver q6usb_be_dais[] = { >> + { >> + .playback = { >> + .stream_name = "USB BE RX", >> + .rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 | >> + SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | >> + SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | >> + SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 | >> + SNDRV_PCM_RATE_192000, >> + .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE | >> + SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE | >> + SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE | >> + SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, >> + .channels_min = 1, >> + .channels_max = 2, >> + .rate_max = 192000, >> + .rate_min = 8000, >> + }, >> + .id = USB_RX, >> + .name = "USB_RX_BE", >> + .ops = &q6usb_ops, >> + }, >> +}; > > ... here I see a single DAI, so presumably ONE endpoint can be supported? > One USB audio device can be supported. one AFE port = one USB audio device > I didn't see in the rest of the code how a card with multiple endpoint > would be rejected, nor how the capabilities are checked? > Need to take a look at this query a bit more. Let me try to pass in a format that can't be supported by the audio DSP, and see if the formats specified in this structure will not allow userspace to start the session. When you say a "card with multiple endpoints" are you referring to a USB device that exposes multiple data (ISOC let's say) eps for its data interface? I haven't run into a device like that. Thanks Wesley Cheng
next prev parent reply other threads:[~2023-01-30 23:00 UTC|newest] Thread overview: 135+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-01-26 3:14 [RFC PATCH v2 00/22] Introduce QC USB SND audio offloading support Wesley Cheng 2023-01-26 3:14 ` Wesley Cheng 2023-01-26 3:14 ` [RFC PATCH v2 01/22] xhci: fix event ring segment table related masks and variables in header Wesley Cheng 2023-01-26 3:14 ` Wesley Cheng 2023-01-26 3:14 ` [RFC PATCH v2 02/22] xhci: remove xhci_test_trb_in_td_math early development check Wesley Cheng 2023-01-26 3:14 ` Wesley Cheng 2023-01-26 7:48 ` Greg KH 2023-01-26 7:48 ` Greg KH 2023-01-26 3:14 ` [RFC PATCH v2 03/22] xhci: Refactor interrupter code for initial multi interrupter support Wesley Cheng 2023-01-26 3:14 ` Wesley Cheng 2023-01-26 3:14 ` [RFC PATCH v2 04/22] xhci: Add support to allocate several interrupters Wesley Cheng 2023-01-26 3:14 ` Wesley Cheng 2023-01-26 3:14 ` [RFC PATCH v2 05/22] usb: xhci: Add XHCI APIs to support USB offloading Wesley Cheng 2023-01-26 3:14 ` Wesley Cheng 2023-01-26 3:14 ` [RFC PATCH v2 06/22] usb: host: xhci-mem: Cleanup pending secondary event ring events Wesley Cheng 2023-01-26 3:14 ` Wesley Cheng 2023-01-26 3:14 ` [RFC PATCH v2 07/22] ASoC: Add SOC USB APIs for adding an USB backend Wesley Cheng 2023-01-26 3:14 ` Wesley Cheng 2023-01-26 15:32 ` Pierre-Louis Bossart 2023-01-30 22:36 ` Wesley Cheng 2023-01-30 22:36 ` Wesley Cheng 2023-01-28 13:26 ` Greg KH 2023-01-28 13:26 ` Greg KH 2023-01-29 6:54 ` Zhou Furong 2023-01-29 6:54 ` Zhou Furong 2023-01-29 7:09 ` Greg KH 2023-01-29 7:09 ` Greg KH 2023-01-30 8:34 ` Zhou Furong 2023-01-30 8:34 ` Zhou Furong 2023-01-30 9:27 ` Greg KH 2023-01-30 9:27 ` Greg KH 2023-02-10 22:46 ` Wesley Cheng 2023-02-10 22:46 ` Wesley Cheng 2023-01-26 3:14 ` [RFC PATCH v2 08/22] ASoC: dt-bindings: Add USB_RX port Wesley Cheng 2023-01-26 3:14 ` Wesley Cheng 2023-01-26 11:55 ` Krzysztof Kozlowski 2023-01-26 11:55 ` Krzysztof Kozlowski 2023-01-30 21:52 ` Wesley Cheng 2023-01-30 21:52 ` Wesley Cheng 2023-01-26 3:14 ` [RFC PATCH v2 09/22] ASoC: qcom: qdsp6: Introduce USB AFE port to q6dsp Wesley Cheng 2023-01-26 3:14 ` Wesley Cheng 2023-01-26 15:07 ` Srinivas Kandagatla 2023-01-26 15:07 ` Srinivas Kandagatla 2023-01-26 15:38 ` Pierre-Louis Bossart 2023-01-30 22:54 ` Wesley Cheng 2023-01-30 22:54 ` Wesley Cheng 2023-01-30 23:59 ` Pierre-Louis Bossart 2023-02-01 2:40 ` Wesley Cheng 2023-02-01 2:40 ` Wesley Cheng 2023-02-01 3:02 ` Pierre-Louis Bossart 2023-02-03 1:23 ` Wesley Cheng 2023-02-03 1:23 ` Wesley Cheng 2023-02-03 1:44 ` Wesley Cheng 2023-02-03 1:44 ` Wesley Cheng 2023-01-26 3:14 ` [RFC PATCH v2 10/22] ASoC: qdsp6: q6afe: Increase APR timeout Wesley Cheng 2023-01-26 3:14 ` Wesley Cheng 2023-01-26 15:09 ` Srinivas Kandagatla 2023-01-26 15:09 ` Srinivas Kandagatla 2023-01-26 3:14 ` [RFC PATCH v2 11/22] ASoC: qcom: Add USB backend ASoC driver for Q6 Wesley Cheng 2023-01-26 3:14 ` Wesley Cheng 2023-01-26 15:44 ` Pierre-Louis Bossart 2023-01-30 22:59 ` Wesley Cheng [this message] 2023-01-30 22:59 ` Wesley Cheng 2023-01-30 23:50 ` Pierre-Louis Bossart 2023-01-26 16:35 ` Srinivas Kandagatla 2023-01-26 16:35 ` Srinivas Kandagatla 2023-01-26 3:14 ` [RFC PATCH v2 12/22] sound: usb: card: Introduce USB SND platform op callbacks Wesley Cheng 2023-01-26 3:14 ` Wesley Cheng 2023-01-26 15:50 ` Pierre-Louis Bossart 2023-01-30 23:00 ` Wesley Cheng 2023-01-30 23:00 ` Wesley Cheng 2023-01-28 13:28 ` Greg KH 2023-01-28 13:28 ` Greg KH 2023-02-10 22:49 ` Wesley Cheng 2023-02-10 22:49 ` Wesley Cheng 2023-02-28 2:59 ` Wesley Cheng 2023-02-28 2:59 ` Wesley Cheng 2023-02-28 7:30 ` Greg KH 2023-02-28 7:30 ` Greg KH 2023-02-28 9:19 ` Wesley Cheng 2023-02-28 9:19 ` Wesley Cheng 2023-02-28 15:29 ` Greg KH 2023-02-28 15:29 ` Greg KH 2023-02-20 17:11 ` Albert Wang 2023-02-20 17:11 ` Albert Wang 2023-01-26 3:14 ` [RFC PATCH v2 13/22] sound: usb: Export USB SND APIs for modules Wesley Cheng 2023-01-26 3:14 ` Wesley Cheng 2023-01-26 3:14 ` [RFC PATCH v2 14/22] dt-bindings: usb: dwc3: Add snps,num-hc-interrupters definition Wesley Cheng 2023-01-26 3:14 ` [RFC PATCH v2 14/22] dt-bindings: usb: dwc3: Add snps, num-hc-interrupters definition Wesley Cheng 2023-01-26 12:01 ` [RFC PATCH v2 14/22] dt-bindings: usb: dwc3: Add snps,num-hc-interrupters definition Krzysztof Kozlowski 2023-01-26 12:01 ` Krzysztof Kozlowski 2023-01-30 22:02 ` Wesley Cheng 2023-01-30 22:02 ` Wesley Cheng 2023-01-26 3:14 ` [RFC PATCH v2 15/22] usb: dwc3: Add DT parameter to specify maximum number of interrupters Wesley Cheng 2023-01-26 3:14 ` Wesley Cheng 2023-01-26 3:14 ` [RFC PATCH v2 16/22] sound: usb: Introduce QC USB SND offloading support Wesley Cheng 2023-01-26 3:14 ` Wesley Cheng 2023-01-26 16:07 ` Pierre-Louis Bossart 2023-01-28 13:32 ` Greg KH 2023-01-28 13:32 ` Greg KH 2023-02-11 0:03 ` Wesley Cheng 2023-02-11 0:03 ` Wesley Cheng 2023-01-26 3:14 ` [RFC PATCH v2 17/22] sound: usb: card: Check for support for requested audio format Wesley Cheng 2023-01-26 3:14 ` Wesley Cheng 2023-01-26 3:14 ` [RFC PATCH v2 18/22] sound: soc: soc-usb: Add PCM format check API for USB backend Wesley Cheng 2023-01-26 3:14 ` Wesley Cheng 2023-01-26 3:14 ` [RFC PATCH v2 19/22] sound: soc: qcom: qusb6: Ensure PCM format is supported by USB audio device Wesley Cheng 2023-01-26 3:14 ` Wesley Cheng 2023-01-26 3:14 ` [RFC PATCH v2 20/22] sound: usb: Prevent starting of audio stream if in use Wesley Cheng 2023-01-26 3:14 ` Wesley Cheng 2023-01-26 16:12 ` Pierre-Louis Bossart 2023-02-07 1:15 ` Wesley Cheng 2023-02-07 1:15 ` Wesley Cheng 2023-02-07 13:29 ` Pierre-Louis Bossart 2023-02-07 13:29 ` Pierre-Louis Bossart 2023-02-11 9:52 ` Wesley Cheng 2023-02-11 9:52 ` Wesley Cheng 2023-02-13 15:22 ` Pierre-Louis Bossart 2023-02-13 20:12 ` Wesley Cheng 2023-02-13 20:12 ` Wesley Cheng 2023-01-26 3:14 ` [RFC PATCH v2 21/22] ASoC: dt-bindings: Add Q6USB backend bindings Wesley Cheng 2023-01-26 3:14 ` Wesley Cheng 2023-01-26 12:03 ` Krzysztof Kozlowski 2023-01-26 12:03 ` Krzysztof Kozlowski 2023-01-26 16:01 ` Srinivas Kandagatla 2023-01-26 16:01 ` Srinivas Kandagatla 2023-01-26 3:14 ` [RFC PATCH v2 22/22] ASoC: dt-bindings: Update example for enabling USB offload on SM8250 Wesley Cheng 2023-01-26 3:14 ` Wesley Cheng 2023-01-26 12:05 ` Krzysztof Kozlowski 2023-01-26 12:05 ` Krzysztof Kozlowski 2023-01-26 9:23 ` [RFC PATCH v2 00/22] Introduce QC USB SND audio offloading support Mathias Nyman 2023-01-26 9:23 ` Mathias Nyman 2023-01-30 21:51 ` Wesley Cheng 2023-01-30 21:51 ` Wesley Cheng 2023-01-26 16:22 ` Pierre-Louis Bossart
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