[alsa-devel] [PATCH v2] ALSA: hda - show ICT/KAE control bits

[Wang Xingchao]

Enable two debug options for S/PDIF Converter Control.
KAE: Keep Alive Enable; ICT: IEC Coding Type.

Signed-off-by: Wang Xingchao <xingchao.wang at intel.com>
---
 sound/pci/hda/hda_codec.h |    4 ++++
 sound/pci/hda/hda_proc.c  |    9 ++++++++-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h
index c422d33..afd2af0 100644
--- a/sound/pci/hda/hda_codec.h
+++ b/sound/pci/hda/hda_codec.h
@@ -386,6 +386,10 @@ enum {
 /* DIGITAL2 bits */
 #define AC_DIG2_CC			(0x7f<<0)
 
+/* DIGITAL3 bits */
+#define AC_DIG3_ICT			(0xf<<0)
+#define AC_DIG3_KAE			(1<<7)
+
 /* Pin widget control - 8bit */
 #define AC_PINCTL_EPT			(0x3<<0)
 #define AC_PINCTL_EPT_NATIVE		0
diff --git a/sound/pci/hda/hda_proc.c b/sound/pci/hda/hda_proc.c
index 7e46258..32bb3d9 100644
--- a/sound/pci/hda/hda_proc.c
+++ b/sound/pci/hda/hda_proc.c
@@ -402,6 +402,9 @@ static void print_digital_conv(struct snd_info_buffer *buffer,
 {
 	unsigned int digi1 = snd_hda_codec_read(codec, nid, 0,
 						AC_VERB_GET_DIGI_CONVERT_1, 0);
+	unsigned char digi2 = digi1 >> 8;
+	unsigned char digi3 = digi1 >> 16;
+
 	snd_iprintf(buffer, "  Digital:");
 	if (digi1 & AC_DIG1_ENABLE)
 		snd_iprintf(buffer, " Enabled");
@@ -419,9 +422,13 @@ static void print_digital_conv(struct snd_info_buffer *buffer,
 		snd_iprintf(buffer, " Pro");
 	if (digi1 & AC_DIG1_LEVEL)
 		snd_iprintf(buffer, " GenLevel");
+	if (digi3 & AC_DIG3_KAE)
+		snd_iprintf(buffer, " KAE");
 	snd_iprintf(buffer, "\n");
 	snd_iprintf(buffer, "  Digital category: 0x%x\n",
-		    (digi1 >> 8) & AC_DIG2_CC);
+		    digi2 & AC_DIG2_CC);
+	snd_iprintf(buffer, "  IEC Coding Type: 0x%x\n",
+			digi3 & AC_DIG3_ICT);
 }
 
 static const char *get_pwr_state(u32 state)
-- 
1.7.9.5