ALSA: opti-miro: expose ACI mixer to outside drivers

The ACI mixer is used to control the radio FM module
installed on the Miro PCM20 sound card. Expose ACI mixer
outside the sound card driver.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

include/sound/aci.h

@@ -70,4 +70,21 @@
 #define ACI_SET_EQ6		0x45
 #define ACI_SET_EQ7		0x46	/* ... to Treble */
 
+struct snd_miro_aci {
+	unsigned long aci_port;
+	int aci_vendor;
+	int aci_product;
+	int aci_version;
+	int aci_amp;
+	int aci_preamp;
+	int aci_solomode;
+
+	struct mutex aci_mutex;
+};
+
+int snd_aci_cmd(struct snd_miro_aci *aci, int write1, int write2, int write3);
+
+struct snd_miro_aci *snd_aci_get_aci(void);
+
 #endif  /* _ACI_H_ */
+