From: Kuninori Morimoto kuninori.morimoto.gx@renesas.com
Current soc_pcm_open() is checking runtime->hw parameters, but having such function is very helpful for reading code.
This patch adds new soc_hw_sanity_check() and checks runtime->hw parameters there. And print its debug message there, too.
Debug message print out timing is exchanged after this patch, but it is not a big deal, because it is for debug.
Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com --- sound/soc/soc-pcm.c | 67 +++++++++++++++++++++++++++------------------ 1 file changed, 40 insertions(+), 27 deletions(-)
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index 4ea4e2af9134..910a6afe9f48 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -689,6 +689,44 @@ static int soc_pcm_close(struct snd_pcm_substream *substream) return soc_pcm_clean(substream, 0); }
+static int soc_hw_sanity_check(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); + struct snd_pcm_hardware *hw = &substream->runtime->hw; + const char *name_cpu = soc_cpu_dai_name(rtd); + const char *name_codec = soc_codec_dai_name(rtd); + const char *err_msg; + struct device *dev = rtd->dev; + + err_msg = "rates"; + if (!hw->rates) + goto config_err; + + err_msg = "formats"; + if (!hw->formats) + goto config_err; + + err_msg = "channels"; + if (!hw->channels_min || !hw->channels_max || + hw->channels_min > hw->channels_max) + goto config_err; + + dev_dbg(dev, "ASoC: %s <-> %s info:\n", name_codec, + name_cpu); + dev_dbg(dev, "ASoC: rate mask 0x%x\n", hw->rates); + dev_dbg(dev, "ASoC: ch min %d max %d\n", hw->channels_min, + hw->channels_max); + dev_dbg(dev, "ASoC: rate min %d max %d\n", hw->rate_min, + hw->rate_max); + + return 0; + +config_err: + dev_err(dev, "ASoC: %s <-> %s No matching %s\n", + name_codec, name_cpu, err_msg); + return -EINVAL; +} + /* * Called by ALSA when a PCM substream is opened, the runtime->hw record is * then initialized and any private data can be allocated. This also calls @@ -697,11 +735,8 @@ static int soc_pcm_close(struct snd_pcm_substream *substream) static int soc_pcm_open(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); - struct snd_pcm_runtime *runtime = substream->runtime; struct snd_soc_component *component; struct snd_soc_dai *dai; - const char *codec_dai_name = soc_codec_dai_name(rtd); - const char *cpu_dai_name = soc_cpu_dai_name(rtd); int i, ret = 0;
for_each_rtd_components(rtd, i, component) @@ -742,23 +777,9 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
soc_pcm_update_symmetry(substream);
- ret = -EINVAL; - if (!runtime->hw.rates) { - printk(KERN_ERR "ASoC: %s <-> %s No matching rates\n", - codec_dai_name, cpu_dai_name); - goto err; - } - if (!runtime->hw.formats) { - printk(KERN_ERR "ASoC: %s <-> %s No matching formats\n", - codec_dai_name, cpu_dai_name); - goto err; - } - if (!runtime->hw.channels_min || !runtime->hw.channels_max || - runtime->hw.channels_min > runtime->hw.channels_max) { - printk(KERN_ERR "ASoC: %s <-> %s No matching channels\n", - codec_dai_name, cpu_dai_name); + ret = soc_hw_sanity_check(substream); + if (ret < 0) goto err; - }
soc_pcm_apply_msb(substream);
@@ -768,14 +789,6 @@ static int soc_pcm_open(struct snd_pcm_substream *substream) if (ret != 0) goto err; } - - pr_debug("ASoC: %s <-> %s info:\n", - codec_dai_name, cpu_dai_name); - pr_debug("ASoC: rate mask 0x%x\n", runtime->hw.rates); - pr_debug("ASoC: min ch %d max ch %d\n", runtime->hw.channels_min, - runtime->hw.channels_max); - pr_debug("ASoC: min rate %d max rate %d\n", runtime->hw.rate_min, - runtime->hw.rate_max); dynamic: snd_soc_runtime_activate(rtd, substream->stream); ret = 0;