XBMC iMX6 audio device test

imx-hdmi-soc.conf

#
# Configuration for iMX6 HDMI output - /usr/share/alsa/cards/imx-hdmi-soc.conf
#

<confdir:pcm/hdmi.conf>

imx-hdmi-soc.pcm.hdmi.0 {
	@args [ CARD AES0 AES1 AES2 AES3 ]
	@args.CARD { type string }
	@args.AES0 { type integer }
	@args.AES1 { type integer }
	@args.AES2 { type integer }
	@args.AES3 { type integer }
	type hooks
	slave.pcm {
		type hw
		card $CARD
	}
	hooks.0 {
		type ctl_elems
		hook_args [
			{
				interface MIXER
				name "IEC958 Playback Default"
				lock true
				preserve true
				optional true
				value [ $AES0 $AES1 $AES2 $AES3 ]
			}
		]
	}
}

imx-spdif.conf

#
# Configuration for iMX6 SPDIF output - /usr/share/alsa/cards/imx-spdif.conf
#

<confdir:pcm/iec958.conf>

imx-spdif.pcm.iec958.0 {
	@args [ CARD AES0 AES1 AES2 AES3 ]
	@args.CARD { type string }
	@args.AES0 { type integer }
	@args.AES1 { type integer }
	@args.AES2 { type integer }
	@args.AES3 { type integer }
	type hooks
	slave.pcm {
		type hw
		card $CARD
	}
	hooks.0 {
		type ctl_elems
		hook_args [
			{
				interface MIXER
				name "IEC958 Playback Default"
				lock true
				preserve true
				optional true
				value [ $AES0 $AES1 $AES2 $AES3 ]
			}
		]
	}
}

Restore-ALSA-device-enumeration.diff

--- a/xbmc/cores/AudioEngine/Sinks/AESinkALSA.cpp	2014-04-21 13:36:56.099428215 +0200
+++ b/xbmc/cores/AudioEngine/Sinks/AESinkALSA.cpp	2014-04-21 13:36:56.111428214 +0200
@@ -721,9 +721,11 @@
    * We don't want to do that if "default" can handle multichannel
    * itself (e.g. in case of a pulseaudio server). */
 
+#ifndef	WANDBOARD_ENUM
   /* For Wandboard, we do not enurate default device as it will be grabbed
    * as one of the sysdefault devices... */
-
+  EnumerateDevice(list, "default", "", config);
+#endif
 
   void **hints;
 
@@ -774,8 +776,11 @@
        * found by the enumeration process. Skip them as well ("hw", "dmix",
        * "plughw", "dsnoop"). */
 
-      /* For wandboard all devices are prefixed by sysdefault so do not ignore them */
       else if (baseName != "default"
+#ifndef	WANDBOARD_ENUM
+            /* For wandboard all devices are prefixed by sysdefault so do not ignore them */
+            && baseName != "sysdefault"
+#endif
             && baseName != "surround40"
             && baseName != "surround41"
             && baseName != "surround50"
@@ -884,6 +889,7 @@
 
 AEDeviceType CAESinkALSA::AEDeviceTypeFromName(const std::string &name)
 {
+#ifdef	WANDBOARD_ENUM
   std::size_t found;
 
   /* Hack : Check for specific wandboard sound device names */
@@ -898,7 +904,7 @@
   found = name.find("sgtl5000audio");
   if (found!=std::string::npos)
     return AE_DEVTYPE_PCM;
-
+#endif
 
   if (name.substr(0, 4) == "hdmi")
     return AE_DEVTYPE_HDMI;