linux-kernel - Re: [PATCH 1/2] ASoC: qcom: audioreach: Add support for Speaker Protection module

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Message-ID: <2566eea5-a153-42e6-9a43-1c0af5a4c11c@oss.qualcomm.com>
Date: Fri, 22 Aug 2025 11:39:02 +0100
From: Srinivas Kandagatla <srinivas.kandagatla@....qualcomm.com>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Srinivas Kandagatla <srini@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>,
        linux-sound@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] ASoC: qcom: audioreach: Add support for Speaker
 Protection module

Thanks Krzysztof for doing this.

On 8/21/25 3:16 PM, Krzysztof Kozlowski wrote:
> Speaker Protection is capability of ADSP to adjust the gain during
> playback to different speakers and their temperature.  This allows good
> playback without blowing the speakers up.
> 
> Implement parsing MODULE_ID_SPEAKER_PROTECTION from Audioreach topology
> and sending it as command to the ADSP.
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> ---
>  sound/soc/qcom/qdsp6/audioreach.c | 13 +++++++++++++
>  sound/soc/qcom/qdsp6/audioreach.h | 11 +++++++++++
>  2 files changed, 24 insertions(+)
> 
> diff --git a/sound/soc/qcom/qdsp6/audioreach.c b/sound/soc/qcom/qdsp6/audioreach.c
> index f4c53e84b4dc..b7f1fc835dc2 100644
> --- a/sound/soc/qcom/qdsp6/audioreach.c
> +++ b/sound/soc/qcom/qdsp6/audioreach.c
> @@ -1250,6 +1250,15 @@ static int audioreach_gain_set(struct q6apm_graph *graph, struct audioreach_modu
>  	return rc;
>  }
>  
> +static int audioreach_speaker_protection(struct q6apm_graph *graph,
> +					 struct audioreach_module *module,
> +					 uint32_t operation_mode)
> +{
> +	return audioreach_send_u32_param(graph, module, PARAM_ID_SP_OP_MODE,
> +					 operation_mode);
> +}
> +
> +
>  int audioreach_set_media_format(struct q6apm_graph *graph, struct audioreach_module *module,
>  				struct audioreach_module_config *cfg)
>  {
> @@ -1299,6 +1308,10 @@ int audioreach_set_media_format(struct q6apm_graph *graph, struct audioreach_mod
>  	case MODULE_ID_GAPLESS:
>  		rc = audioreach_gapless_set_media_format(graph, module, cfg);
>  		break;
> +	case MODULE_ID_SPEAKER_PROTECTION:
> +		rc = audioreach_speaker_protection(graph, module,
> +						   PARAM_ID_SP_OP_MODE_CALIBRATION);

Are we leaving this in calibration mode forever? When does the mode change?

> +		break;
>  	default:
>  		rc = 0;
>  	}
> diff --git a/sound/soc/qcom/qdsp6/audioreach.h b/sound/soc/qcom/qdsp6/audioreach.h
> index 790fba96e34d..0ad566e45e09 100644
> --- a/sound/soc/qcom/qdsp6/audioreach.h
> +++ b/sound/soc/qcom/qdsp6/audioreach.h
> @@ -31,6 +31,7 @@ struct q6apm_graph;
>  #define MODULE_ID_MP3_DECODE		0x0700103B
>  #define MODULE_ID_GAPLESS		0x0700104D
>  #define MODULE_ID_DISPLAY_PORT_SINK	0x07001069
> +#define MODULE_ID_SPEAKER_PROTECTION	0x070010E2
>  
>  #define APM_CMD_GET_SPF_STATE		0x01001021
>  #define APM_CMD_RSP_GET_SPF_STATE	0x02001007
> @@ -542,6 +543,16 @@ struct data_logging_config {
>  	uint32_t mode;
>  } __packed;
>  
> +/* Speaker Protection */
> +#define PARAM_ID_SP_OP_MODE			0x080011e9


Are we missing

#define PARAM_ID_SP_OP_MODE_NORMAL		0
?

> +#define PARAM_ID_SP_OP_MODE_CALIBRATION		1
> +#define PARAM_ID_SP_OP_MODE_FACTORY_TEST	2
> +#define PARAM_ID_SP_OP_MODE_VALIDATION		3

> +
> +struct param_id_sp_op_mode {
> +	uint32_t operation_mode;
> +} __packed;
> +
>  #define PARAM_ID_SAL_OUTPUT_CFG			0x08001016
>  struct param_id_sal_output_config {
>  	uint32_t bits_per_sample;