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authorPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>2011-10-05 15:14:20 -0500
committerTakashi Iwai <tiwai@suse.de>2011-10-06 08:08:53 +0200
commitaf65cbf296a07c4a52079324fbefdfc9bd2622a3 (patch)
tree4365d2ba17abe30d35d2387c3c0e05dfa3ce62a7
parent7c2f8e4009d4b66c8458e3a5c20510b4262853bb (diff)
ALSA: hdmi: fix printout of SAD sampling rates
SAD sampling rate information reported in /proc/asound/cardX/eldX is incorrect due to a mismatch between HDA and HDMI frequencies. Add new routine to provide relevant values. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
-rw-r--r--sound/pci/hda/hda_codec.c2
-rw-r--r--sound/pci/hda/hda_eld.c24
2 files changed, 23 insertions, 3 deletions
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 8b046a10b42b..d2f41b1446e1 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -5205,7 +5205,7 @@ EXPORT_SYMBOL_HDA(snd_array_free);
* @buf: the string buffer to write
* @buflen: the max buffer length
*
- * used by hda_proc.c and hda_eld.c
+ * used by hda_proc.c
*/
void snd_print_pcm_rates(int pcm, char *buf, int buflen)
{
diff --git a/sound/pci/hda/hda_eld.c b/sound/pci/hda/hda_eld.c
index f1c621d2f8e8..bc1ac2940c5e 100644
--- a/sound/pci/hda/hda_eld.c
+++ b/sound/pci/hda/hda_eld.c
@@ -363,6 +363,26 @@ error:
return ret;
}
+/**
+ * SNDRV_PCM_RATE_* and AC_PAR_PCM values don't match, print correct rates with
+ * hdmi-specific routine.
+ */
+static void hdmi_print_pcm_rates(int pcm, char *buf, int buflen)
+{
+ static unsigned int alsa_rates[] = {
+ 5512, 8000, 11025, 16000, 22050, 32000, 44100, 48000, 88200,
+ 96000, 176400, 192000, 384000
+ };
+ int i, j;
+
+ for (i = 0, j = 0; i < ARRAY_SIZE(alsa_rates); i++)
+ if (pcm & (1 << i))
+ j += snprintf(buf + j, buflen - j, " %d",
+ alsa_rates[i]);
+
+ buf[j] = '\0'; /* necessary when j == 0 */
+}
+
static void hdmi_show_short_audio_desc(struct cea_sad *a)
{
char buf[SND_PRINT_RATES_ADVISED_BUFSIZE];
@@ -371,7 +391,7 @@ static void hdmi_show_short_audio_desc(struct cea_sad *a)
if (!a->format)
return;
- snd_print_pcm_rates(a->rates, buf, sizeof(buf));
+ hdmi_print_pcm_rates(a->rates, buf, sizeof(buf));
if (a->format == AUDIO_CODING_TYPE_LPCM)
snd_print_pcm_bits(a->sample_bits, buf2 + 8, sizeof(buf2) - 8);
@@ -430,7 +450,7 @@ static void hdmi_print_sad_info(int i, struct cea_sad *a,
i, a->format, cea_audio_coding_type_names[a->format]);
snd_iprintf(buffer, "sad%d_channels\t\t%d\n", i, a->channels);
- snd_print_pcm_rates(a->rates, buf, sizeof(buf));
+ hdmi_print_pcm_rates(a->rates, buf, sizeof(buf));
snd_iprintf(buffer, "sad%d_rates\t\t[0x%x]%s\n", i, a->rates, buf);
if (a->format == AUDIO_CODING_TYPE_LPCM) {