ASoC: soc-pcm: add soc_hw_sanity_check()
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>
Link: https://lore.kernel.org/r/87eegpuob1.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 4ea4e2a..910a6af 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);
+ ret = soc_hw_sanity_check(substream);
+ if (ret < 0)
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);
- 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;