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ASoC: dapm: debugfs: show the widget type
To make the widget debugfs files more informative, add a line showing the widget type string. Keeping backward compatibility is nice to have being debugfs, and ease of parsing by both humans and software is also good. To maximize both with a reasonable effort add a new line without thouching the already complex format of the first line. The syntax is meant to be a key/value pair. The existing vizdapm tool continues working after this change, ignoring the new line. The new format is: Left ADC: Off in 1 out 0 - R2(0x2) mask 0x2 stream Left HiFi Capture inactive widget-type adc out "static" "Capture" "cs42l51.0-004a" in "static" "Left PGA" "cs42l51.0-004a" Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20240416-vizdapm-ng-v1-2-5d33c0b57bc5@bootlin.com Signed-off-by: Mark Brown <broonie@kernel.org>
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@ -2094,6 +2094,48 @@ static int dapm_power_widgets(struct snd_soc_card *card, int event)
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}
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#ifdef CONFIG_DEBUG_FS
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static const char * const snd_soc_dapm_type_name[] = {
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[snd_soc_dapm_input] = "input",
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[snd_soc_dapm_output] = "output",
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[snd_soc_dapm_mux] = "mux",
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[snd_soc_dapm_demux] = "demux",
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[snd_soc_dapm_mixer] = "mixer",
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[snd_soc_dapm_mixer_named_ctl] = "mixer_named_ctl",
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[snd_soc_dapm_pga] = "pga",
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[snd_soc_dapm_out_drv] = "out_drv",
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[snd_soc_dapm_adc] = "adc",
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[snd_soc_dapm_dac] = "dac",
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[snd_soc_dapm_micbias] = "micbias",
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[snd_soc_dapm_mic] = "mic",
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[snd_soc_dapm_hp] = "hp",
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[snd_soc_dapm_spk] = "spk",
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[snd_soc_dapm_line] = "line",
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[snd_soc_dapm_switch] = "switch",
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[snd_soc_dapm_vmid] = "vmid",
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[snd_soc_dapm_pre] = "pre",
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[snd_soc_dapm_post] = "post",
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[snd_soc_dapm_supply] = "supply",
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[snd_soc_dapm_pinctrl] = "pinctrl",
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[snd_soc_dapm_regulator_supply] = "regulator_supply",
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[snd_soc_dapm_clock_supply] = "clock_supply",
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[snd_soc_dapm_aif_in] = "aif_in",
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[snd_soc_dapm_aif_out] = "aif_out",
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[snd_soc_dapm_siggen] = "siggen",
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[snd_soc_dapm_sink] = "sink",
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[snd_soc_dapm_dai_in] = "dai_in",
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[snd_soc_dapm_dai_out] = "dai_out",
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[snd_soc_dapm_dai_link] = "dai_link",
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[snd_soc_dapm_kcontrol] = "kcontrol",
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[snd_soc_dapm_buffer] = "buffer",
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[snd_soc_dapm_scheduler] = "scheduler",
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[snd_soc_dapm_effect] = "effect",
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[snd_soc_dapm_src] = "src",
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[snd_soc_dapm_asrc] = "asrc",
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[snd_soc_dapm_encoder] = "encoder",
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[snd_soc_dapm_decoder] = "decoder",
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};
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static ssize_t dapm_widget_power_read_file(struct file *file,
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char __user *user_buf,
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size_t count, loff_t *ppos)
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@ -2106,6 +2148,8 @@ static ssize_t dapm_widget_power_read_file(struct file *file,
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struct snd_soc_dapm_path *p = NULL;
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const char *c_name;
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BUILD_BUG_ON(ARRAY_SIZE(snd_soc_dapm_type_name) != SND_SOC_DAPM_TYPE_COUNT);
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buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
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if (!buf)
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return -ENOMEM;
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@ -2137,6 +2181,9 @@ static ssize_t dapm_widget_power_read_file(struct file *file,
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w->sname,
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w->active ? "active" : "inactive");
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ret += scnprintf(buf + ret, PAGE_SIZE - ret, " widget-type %s\n",
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snd_soc_dapm_type_name[w->id]);
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snd_soc_dapm_for_each_direction(dir) {
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rdir = SND_SOC_DAPM_DIR_REVERSE(dir);
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snd_soc_dapm_widget_for_each_path(w, dir, p) {
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