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no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-alsa-devel.alsa-project.org-0; header-match-alsa-devel.alsa-project.org-1; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.8 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: soc_get_playback_capture() (A) returns number of substreams for playback/capture (B). ASoC will probe the Sound Card and mapps CPU<->Codec pair. (A) static int soc_get_playback_capture(..., (B) int *playback, int *capture) { ... if (rtd->dai_link->playback_only) { *playback = 1; *capture = 0; } if (rtd->dai_link->capture_only) { *playback = 0; *capture = 1; } (C) return 0; } But it might be no playback no capture if it returns playback=0, capture=0. It is very difficult to notice about it. This patch indicates error at (C) then. Signed-off-by: Kuninori Morimoto Reviewed-by: Amadeusz Sławiński --- sound/soc/soc-pcm.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index 7247f44faa1c..fe65994485f8 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -2815,6 +2815,13 @@ static int soc_get_playback_capture(struct snd_soc_pcm_runtime *rtd, *capture = 1; } + if (!*playback && !*capture) { + dev_err(rtd->dev, "substream %s has no playback, no capture\n", + rtd->dai_link->stream_name); + + return -EINVAL; + } + return 0; } From patchwork Tue May 30 00:49:50 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Kuninori Morimoto X-Patchwork-Id: 13259039 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 80763C7EE23 for ; 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no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-alsa-devel.alsa-project.org-0; header-match-alsa-devel.alsa-project.org-1; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.8 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: soc_get_playback_capture() (A) is using rtd->dai_link->xxx everywhere. Because of that, 1 line is unnecessarily long and not readable. (A) static int soc_get_playback_capture(...) { if (rtd->dai_link->dynamic ...) { ^^^^^^^^^^^^^ ... } else { int cpu_capture = rtd->dai_link->c2c_params ? ^^^^^^^^^^^^^ ... } if (rtd->dai_link->playback_only) { ^^^^^^^^^^^^^ ... } ... } This patch uses variable "dai_link" to be clear code. Nothing changes the meanings. Signed-off-by: Kuninori Morimoto Reviewed-by: Amadeusz Sławiński --- sound/soc/soc-pcm.c | 27 ++++++++++++++------------- 1 file changed, 14 insertions(+), 13 deletions(-) diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index fe65994485f8..db3fbe1af2ce 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -2731,19 +2731,20 @@ static int dpcm_fe_dai_open(struct snd_pcm_substream *fe_substream) static int soc_get_playback_capture(struct snd_soc_pcm_runtime *rtd, int *playback, int *capture) { + struct snd_soc_dai_link *dai_link = rtd->dai_link; struct snd_soc_dai *cpu_dai; int i; - if (rtd->dai_link->dynamic && rtd->dai_link->num_cpus > 1) { + if (dai_link->dynamic && dai_link->num_cpus > 1) { dev_err(rtd->dev, "DPCM doesn't support Multi CPU for Front-Ends yet\n"); return -EINVAL; } - if (rtd->dai_link->dynamic || rtd->dai_link->no_pcm) { + if (dai_link->dynamic || dai_link->no_pcm) { int stream; - if (rtd->dai_link->dpcm_playback) { + if (dai_link->dpcm_playback) { stream = SNDRV_PCM_STREAM_PLAYBACK; for_each_rtd_cpu_dais(rtd, i, cpu_dai) { @@ -2755,11 +2756,11 @@ static int soc_get_playback_capture(struct snd_soc_pcm_runtime *rtd, if (!*playback) { dev_err(rtd->card->dev, "No CPU DAIs support playback for stream %s\n", - rtd->dai_link->stream_name); + dai_link->stream_name); return -EINVAL; } } - if (rtd->dai_link->dpcm_capture) { + if (dai_link->dpcm_capture) { stream = SNDRV_PCM_STREAM_CAPTURE; for_each_rtd_cpu_dais(rtd, i, cpu_dai) { @@ -2772,7 +2773,7 @@ static int soc_get_playback_capture(struct snd_soc_pcm_runtime *rtd, if (!*capture) { dev_err(rtd->card->dev, "No CPU DAIs support capture for stream %s\n", - rtd->dai_link->stream_name); + dai_link->stream_name); return -EINVAL; } } @@ -2780,15 +2781,15 @@ static int soc_get_playback_capture(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *codec_dai; /* Adapt stream for codec2codec links */ - int cpu_capture = rtd->dai_link->c2c_params ? + int cpu_capture = dai_link->c2c_params ? SNDRV_PCM_STREAM_PLAYBACK : SNDRV_PCM_STREAM_CAPTURE; - int cpu_playback = rtd->dai_link->c2c_params ? + int cpu_playback = dai_link->c2c_params ? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK; for_each_rtd_codec_dais(rtd, i, codec_dai) { - if (rtd->dai_link->num_cpus == 1) { + if (dai_link->num_cpus == 1) { cpu_dai = asoc_rtd_to_cpu(rtd, 0); - } else if (rtd->dai_link->num_cpus == rtd->dai_link->num_codecs) { + } else if (dai_link->num_cpus == dai_link->num_codecs) { cpu_dai = asoc_rtd_to_cpu(rtd, i); } else { dev_err(rtd->card->dev, @@ -2805,19 +2806,19 @@ static int soc_get_playback_capture(struct snd_soc_pcm_runtime *rtd, } } - if (rtd->dai_link->playback_only) { + if (dai_link->playback_only) { *playback = 1; *capture = 0; } - if (rtd->dai_link->capture_only) { + if (dai_link->capture_only) { *playback = 0; *capture = 1; } if (!*playback && !*capture) { dev_err(rtd->dev, "substream %s has no playback, no capture\n", - rtd->dai_link->stream_name); + dai_link->stream_name); return -EINVAL; } From patchwork Tue May 30 00:49:56 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Kuninori Morimoto X-Patchwork-Id: 13259040 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 93499C77B7A for ; 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no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-alsa-devel.alsa-project.org-0; header-match-alsa-devel.alsa-project.org-1; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.8 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: soc_get_playback_capture() (A) checks dai_link status, and indicate error if it was not matching (B). (A) static int soc_get_playback_capture(...) { ... ^ if (dai_link->dynamic && dai_link->num_cpus > 1) { | dev_err(rtd->dev, (B) "DPCM doesn't support Multi CPU for Front-Ends yet\n"); | return -EINVAL; v } ... } We can use 100 char for 1 line today. This patch cleanup error code line. Signed-off-by: Kuninori Morimoto Reviewed-by: Amadeusz Sławiński --- sound/soc/soc-pcm.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index db3fbe1af2ce..47da3be0ff46 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -2736,8 +2736,7 @@ static int soc_get_playback_capture(struct snd_soc_pcm_runtime *rtd, int i; if (dai_link->dynamic && dai_link->num_cpus > 1) { - dev_err(rtd->dev, - "DPCM doesn't support Multi CPU for Front-Ends yet\n"); + dev_err(rtd->dev, "DPCM doesn't support Multi CPU for Front-Ends yet\n"); return -EINVAL; } From patchwork Tue May 30 00:50:01 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Kuninori Morimoto X-Patchwork-Id: 13259041 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D53D4C7EE29 for ; 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no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-alsa-devel.alsa-project.org-0; header-match-alsa-devel.alsa-project.org-1; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.8 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: soc_get_playback_capture() (A) returns number of substreams for playback/capture (B). (A) static int soc_get_playback_capture(..., (B) int *playback, int *capture) { ... for_each_xxx(...) { if (xxx) return -EINVAL; => *playback = 1; ... => *capture = 1; ... } ... } But, it is directly updating playback/capture which is the result of this function even though it might be error. It should be updated in case of succeed only. This patch updates it. Signed-off-by: Kuninori Morimoto Reviewed-by: Amadeusz Sławiński --- sound/soc/soc-pcm.c | 27 ++++++++++++++++----------- 1 file changed, 16 insertions(+), 11 deletions(-) diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index 47da3be0ff46..b3d569e7ba61 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -2733,6 +2733,8 @@ static int soc_get_playback_capture(struct snd_soc_pcm_runtime *rtd, { struct snd_soc_dai_link *dai_link = rtd->dai_link; struct snd_soc_dai *cpu_dai; + int has_playback = 0; + int has_capture = 0; int i; if (dai_link->dynamic && dai_link->num_cpus > 1) { @@ -2748,11 +2750,11 @@ static int soc_get_playback_capture(struct snd_soc_pcm_runtime *rtd, for_each_rtd_cpu_dais(rtd, i, cpu_dai) { if (snd_soc_dai_stream_valid(cpu_dai, stream)) { - *playback = 1; + has_playback = 1; break; } } - if (!*playback) { + if (!has_playback) { dev_err(rtd->card->dev, "No CPU DAIs support playback for stream %s\n", dai_link->stream_name); @@ -2764,12 +2766,12 @@ static int soc_get_playback_capture(struct snd_soc_pcm_runtime *rtd, for_each_rtd_cpu_dais(rtd, i, cpu_dai) { if (snd_soc_dai_stream_valid(cpu_dai, stream)) { - *capture = 1; + has_capture = 1; break; } } - if (!*capture) { + if (!has_capture) { dev_err(rtd->card->dev, "No CPU DAIs support capture for stream %s\n", dai_link->stream_name); @@ -2798,30 +2800,33 @@ static int soc_get_playback_capture(struct snd_soc_pcm_runtime *rtd, if (snd_soc_dai_stream_valid(codec_dai, SNDRV_PCM_STREAM_PLAYBACK) && snd_soc_dai_stream_valid(cpu_dai, cpu_playback)) - *playback = 1; + has_playback = 1; if (snd_soc_dai_stream_valid(codec_dai, SNDRV_PCM_STREAM_CAPTURE) && snd_soc_dai_stream_valid(cpu_dai, cpu_capture)) - *capture = 1; + has_capture = 1; } } if (dai_link->playback_only) { - *playback = 1; - *capture = 0; + has_playback = 1; + has_capture = 0; } if (dai_link->capture_only) { - *playback = 0; - *capture = 1; + has_playback = 0; + has_capture = 1; } - if (!*playback && !*capture) { + if (!has_playback && !has_capture) { dev_err(rtd->dev, "substream %s has no playback, no capture\n", dai_link->stream_name); return -EINVAL; } + *playback = has_playback; + *capture = has_capture; 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no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-alsa-devel.alsa-project.org-0; header-match-alsa-devel.alsa-project.org-1; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.8 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: soc_get_playback_capture() (A) returns number of substreams for playback/capture, and then, we can use playback/capture_only flag (X)(Y). (A) static int soc_get_playback_capture(...) { ... (X) if (dai_link->playback_only) { (*) *playback = 1; *capture = 0; } (Y) if (dai_link->capture_only) { *playback = 0; (*) *capture = 1; } ... } But this flag should not have effect to opposite side stream (*). This patch tidyup it. Signed-off-by: Kuninori Morimoto Reviewed-by: Amadeusz Sławiński --- sound/soc/soc-pcm.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index b3d569e7ba61..159670612de3 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -2807,15 +2807,11 @@ static int soc_get_playback_capture(struct snd_soc_pcm_runtime *rtd, } } - if (dai_link->playback_only) { - has_playback = 1; + if (dai_link->playback_only) has_capture = 0; - } - if (dai_link->capture_only) { + if (dai_link->capture_only) has_playback = 0; - has_capture = 1; - } if (!has_playback && !has_capture) { dev_err(rtd->dev, "substream %s has no playback, no capture\n",