[ALSA] ice1724 - Functioning support for Prodigy 192

Fixes:
--------
* correct card specific ice1724 initialization
* working IEC958 output of the card
* renamed capture controls
New features:
------------------
* analog input switch (line-in/mic)
* optional ak4114 based MI/ODI/O card detection & support: IEC958 input,
  digital input switch (toslink/coax)
Unresolved issues
-----------------------
* Analog and digital input enums are listed on playback panel of alsamixer,
  I do not know how to push them onto the capture one.

Signed-off-by: Pavel Hofman <dustin@seznam.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

sound/pci/ice1712/prodigy192.h

@@ -5,6 +5,14 @@
 #define PRODIGY192_STAC9460_ADDR	0x54
 
 #define VT1724_SUBDEVICE_PRODIGY192VE	 0x34495345	/* PRODIGY 192 VE */
+/*
+ *  AudioTrak Prodigy192 GPIO definitions for MI/ODI/O card with
+ *  AK4114 (SPDIF-IN)
+ */
+#define VT1724_PRODIGY192_CS	(1 << 8)	/* GPIO8, pin 75 */
+#define VT1724_PRODIGY192_CCLK	(1 << 9)	/* GPIO9, pin 76 */
+#define VT1724_PRODIGY192_CDOUT	(1 << 10)	/* GPIO10, pin 77 */
+#define VT1724_PRODIGY192_CDIN	(1 << 11)	/* GPIO11, pin 86 */
 
 extern struct snd_ice1712_card_info  snd_vt1724_prodigy192_cards[];