1 files changed, 81 insertions, 0 deletions
diff --git a/emu/port/audio.h b/emu/port/audio.h
new file mode 100644
index 00000000..5846cda8
--- /dev/null
+++ b/emu/port/audio.h
@@ -0,0 +1,81 @@
+#define	AUDIO_BITS_FLAG		0x00000001
+#define	AUDIO_BUF_FLAG		0x00000002
+#define	AUDIO_CHAN_FLAG		0x00000004
+#define	AUDIO_COUNT_FLAG	0x00000008
+#define	AUDIO_DEV_FLAG		0x00000010
+#define	AUDIO_ENC_FLAG		0x00000020
+#define	AUDIO_RATE_FLAG		0x00000040
+#define	AUDIO_VOL_FLAG		0x00000080
+#define	AUDIO_LEFT_FLAG		0x00000100
+#define	AUDIO_RIGHT_FLAG	0x00000200
+#define	AUDIO_IN_FLAG		0x00000400
+#define	AUDIO_OUT_FLAG		0x00000800
+#define	AUDIO_MOD_FLAG		0x10000000
+
+#define	Audio_Min_Val		0
+#define	Audio_Max_Val		100
+
+#define 	Audio_No_Val		0
+#define 	Audio_In_Val		1
+#define 	Audio_Out_Val		2
+
+#define	Audio_Max_Buf		32768
+#define	Bits_Per_Byte		8
+
+typedef struct Audio_d Audio_d;
+struct Audio_d {
+	ulong	flags;		/* bit flag for fields */
+	ulong	bits;		/* bits per sample */
+	ulong	buf;		/* buffer size */
+	ulong	chan;		/* number of channels */
+	ulong	dev;		/* device */
+	ulong	enc;		/* encoding format */
+	ulong	rate;		/* samples per second */
+	ulong	left;		/* left channel gain */
+	ulong	right;		/* right channel gain */
+};
+
+typedef struct Audio_t Audio_t;
+struct Audio_t {
+	Audio_d	in;		/* input device */
+	Audio_d	out;		/* output device */
+};
+
+#define AUDIO_CMD_MAXNUM 32
+
+void audio_info_init(Audio_t*);
+int audioparse(char*, int n, Audio_t*);
+
+enum
+{
+	Qdir = 0,		/* must start at 0 representing a directory */
+	Qaudio,
+	Qaudioctl
+};
+
+/* required external platform specific functions */
+void	audio_file_init(void);
+void	audio_file_open(Chan*, int);
+long	audio_file_read(Chan*, void*, long, vlong);
+long	audio_file_write(Chan*, void*, long, vlong);
+long	audio_ctl_write(Chan*, void*, long, vlong);
+void	audio_file_close(Chan*);
+
+typedef struct _svp_t {
+	char*		s;	/* string */
+	unsigned long	v;	/* value */
+} svp_t;
+
+/* string value pairs for default audio values */
+extern svp_t audio_chan_tbl[];
+extern svp_t audio_indev_tbl[];
+extern svp_t audio_outdev_tbl[];
+extern svp_t audio_enc_tbl[];
+extern svp_t audio_rate_tbl[];
+extern svp_t audio_val_tbl[];
+extern svp_t audio_bits_tbl[];
+
+extern Audio_d Default_Audio_Format;
+extern int Default_Audio_Input, Default_Audio_Output;
+
+extern Audio_t* getaudiodev(void);