Commit 093b8494 authored by Takashi Iwai's avatar Takashi Iwai

ALSA: usb-audio: Print more information in stream proc files

For more debug and usability information, add the entry showing the
DSD raw states and the channel mapping in each stream proc file.

Link: https://lore.kernel.org/r/20200419212134.14200-1-tiwai@suse.deSigned-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent aa08ff0f
...@@ -54,6 +54,38 @@ void snd_usb_audio_create_proc(struct snd_usb_audio *chip) ...@@ -54,6 +54,38 @@ void snd_usb_audio_create_proc(struct snd_usb_audio *chip)
proc_audio_usbid_read); proc_audio_usbid_read);
} }
static const char * const channel_labels[] = {
[SNDRV_CHMAP_NA] = "N/A",
[SNDRV_CHMAP_MONO] = "MONO",
[SNDRV_CHMAP_FL] = "FL",
[SNDRV_CHMAP_FR] = "FR",
[SNDRV_CHMAP_FC] = "FC",
[SNDRV_CHMAP_LFE] = "LFE",
[SNDRV_CHMAP_RL] = "RL",
[SNDRV_CHMAP_RR] = "RR",
[SNDRV_CHMAP_FLC] = "FLC",
[SNDRV_CHMAP_FRC] = "FRC",
[SNDRV_CHMAP_RC] = "RC",
[SNDRV_CHMAP_SL] = "SL",
[SNDRV_CHMAP_SR] = "SR",
[SNDRV_CHMAP_TC] = "TC",
[SNDRV_CHMAP_TFL] = "TFL",
[SNDRV_CHMAP_TFC] = "TFC",
[SNDRV_CHMAP_TFR] = "TFR",
[SNDRV_CHMAP_TRL] = "TRL",
[SNDRV_CHMAP_TRC] = "TRC",
[SNDRV_CHMAP_TRR] = "TRR",
[SNDRV_CHMAP_TFLC] = "TFLC",
[SNDRV_CHMAP_TFRC] = "TFRC",
[SNDRV_CHMAP_LLFE] = "LLFE",
[SNDRV_CHMAP_RLFE] = "RLFE",
[SNDRV_CHMAP_TSL] = "TSL",
[SNDRV_CHMAP_TSR] = "TSR",
[SNDRV_CHMAP_BC] = "BC",
[SNDRV_CHMAP_RLC] = "RLC",
[SNDRV_CHMAP_RRC] = "RRC",
};
/* /*
* proc interface for list the supported pcm formats * proc interface for list the supported pcm formats
*/ */
...@@ -97,6 +129,27 @@ static void proc_dump_substream_formats(struct snd_usb_substream *subs, struct s ...@@ -97,6 +129,27 @@ static void proc_dump_substream_formats(struct snd_usb_substream *subs, struct s
snd_iprintf(buffer, " Data packet interval: %d us\n", snd_iprintf(buffer, " Data packet interval: %d us\n",
125 * (1 << fp->datainterval)); 125 * (1 << fp->datainterval));
snd_iprintf(buffer, " Bits: %d\n", fp->fmt_bits); snd_iprintf(buffer, " Bits: %d\n", fp->fmt_bits);
if (fp->dsd_raw)
snd_iprintf(buffer, " DSD raw: DOP=%d, bitrev=%d\n",
fp->dsd_dop, fp->dsd_bitrev);
if (fp->chmap) {
const struct snd_pcm_chmap_elem *map = fp->chmap;
int c;
snd_iprintf(buffer, " Channel map:");
for (c = 0; c < map->channels; c++) {
if (map->map[c] >= sizeof(channel_labels) ||
!channel_labels[map->map[c]])
snd_iprintf(buffer, " --");
else
snd_iprintf(buffer, " %s",
channel_labels[map->map[c]]);
}
snd_iprintf(buffer, "\n");
}
// snd_iprintf(buffer, " Max Packet Size = %d\n", fp->maxpacksize); // snd_iprintf(buffer, " Max Packet Size = %d\n", fp->maxpacksize);
// snd_iprintf(buffer, " EP Attribute = %#x\n", fp->attributes); // snd_iprintf(buffer, " EP Attribute = %#x\n", fp->attributes);
} }
......
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