ALSA: create hda_eld.c for ELD routines and proc interface
ELD handling routines can be shared by all HDMI codecs,
and they are large enough to make a standalone source file.
Signed-off-by: Wu Fengguang <wfg@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/hda/hda_local.h b/sound/pci/hda/hda_local.h
index d7e3a16..e1b7668 100644
--- a/sound/pci/hda/hda_local.h
+++ b/sound/pci/hda/hda_local.h
@@ -443,4 +443,45 @@
#define get_amp_direction(kc) (((kc)->private_value >> 18) & 0x1)
#define get_amp_index(kc) (((kc)->private_value >> 19) & 0xf)
+/*
+ * CEA Short Audio Descriptor data
+ */
+struct cea_sad {
+ int channels;
+ int format; /* (format == 0) indicates invalid SAD */
+ int rates;
+ int sample_bits; /* for LPCM */
+ int max_bitrate; /* for AC3...ATRAC */
+ int profile; /* for WMAPRO */
+};
+
+#define ELD_FIXED_BYTES 20
+#define ELD_MAX_MNL 16
+#define ELD_MAX_SAD 16
+
+/*
+ * ELD: EDID Like Data
+ */
+struct sink_eld {
+ int eld_size;
+ int baseline_len;
+ int eld_ver; /* (eld_ver == 0) indicates invalid ELD */
+ int cea_edid_ver;
+ char monitor_name[ELD_MAX_MNL + 1];
+ int manufacture_id;
+ int product_id;
+ u64 port_id;
+ int support_hdcp;
+ int support_ai;
+ int conn_type;
+ int aud_synch_delay;
+ int spk_alloc;
+ int sad_count;
+ struct cea_sad sad[ELD_MAX_SAD];
+};
+
+int snd_hdmi_get_eld_size(struct hda_codec *codec, hda_nid_t nid);
+int snd_hdmi_get_eld(struct sink_eld *, struct hda_codec *, hda_nid_t);
+void snd_hdmi_show_eld(struct sink_eld *eld);
+
#endif /* __SOUND_HDA_LOCAL_H */