1#define DTLK_MINOR	0
2#define DTLK_IO_EXTENT	0x02
3
4	/* ioctl's use magic number of 0xa3 */
5#define DTLK_INTERROGATE 0xa390	/* get settings from the DoubleTalk */
6#define DTLK_STATUS 0xa391	/* get status from the DoubleTalk */
7
8
9#define DTLK_CLEAR 0x18		/* stops speech */
10
11#define DTLK_MAX_RETRIES (loops_per_jiffy/(10000/HZ))
12
13	/* TTS Port Status Flags */
14#define TTS_READABLE     0x80	/* mask for bit which is nonzero if a
15				   byte can be read from the TTS port */
16#define TTS_SPEAKING     0x40	/* mask for SYNC bit, which is nonzero
17				   while DoubleTalk is producing
18				   output with TTS, PCM or CVSD
19				   synthesizers or tone generators
20				   (that is, all but LPC) */
21#define TTS_SPEAKING2    0x20	/* mask for SYNC2 bit,
22				   which falls to zero up to 0.4 sec
23				   before speech stops */
24#define TTS_WRITABLE     0x10	/* mask for RDY bit, which when set to
25             			   1, indicates the TTS port is ready
26             			   to accept a byte of data.  The RDY
27             			   bit goes zero 2-3 usec after
28             			   writing, and goes 1 again 180-190
29             			   usec later. */
30#define TTS_ALMOST_FULL  0x08	/* mask for AF bit: When set to 1,
31				   indicates that less than 300 free
32				   bytes are available in the TTS
33				   input buffer. AF is always 0 in the
34				   PCM, TGN and CVSD modes. */
35#define TTS_ALMOST_EMPTY 0x04	/* mask for AE bit: When set to 1,
36				   indicates that less than 300 bytes
37				   of data remain in DoubleTalk's
38				   input (TTS or PCM) buffer. AE is
39				   always 1 in the TGN and CVSD
40				   modes. */
41
42	/* LPC speak commands */
43#define LPC_5220_NORMAL 0x60	/* 5220 format decoding table, normal rate */
44#define LPC_5220_FAST 0x64	/* 5220 format decoding table, fast rate */
45#define LPC_D6_NORMAL 0x20	/* D6 format decoding table, normal rate */
46#define LPC_D6_FAST 0x24	/* D6 format decoding table, fast rate */
47
48	/* LPC Port Status Flags (valid only after one of the LPC
49           speak commands) */
50#define LPC_SPEAKING     0x80	/* mask for TS bit: When set to 1,
51				   indicates the LPC synthesizer is
52				   producing speech.*/
53#define LPC_BUFFER_LOW   0x40	/* mask for BL bit: When set to 1,
54				   indicates that the hardware LPC
55				   data buffer has less than 30 bytes
56				   remaining. (Total internal buffer
57				   size = 4096 bytes.) */
58#define LPC_BUFFER_EMPTY 0x20	/* mask for BE bit: When set to 1,
59				   indicates that the LPC data buffer
60				   ran out of data (error condition if
61				   TS is also 1).  */
62
63				/* data returned by Interrogate command */
64struct dtlk_settings
65{
66  unsigned short serial_number;	/* 0-7Fh:0-7Fh */
67  unsigned char rom_version[24]; /* null terminated string */
68  unsigned char mode;		/* 0=Character; 1=Phoneme; 2=Text */
69  unsigned char punc_level;	/* nB; 0-7 */
70  unsigned char formant_freq;	/* nF; 0-9 */
71  unsigned char pitch;		/* nP; 0-99 */
72  unsigned char speed;		/* nS; 0-9 */
73  unsigned char volume;		/* nV; 0-9 */
74  unsigned char tone;		/* nX; 0-2 */
75  unsigned char expression;	/* nE; 0-9 */
76  unsigned char ext_dict_loaded; /* 1=exception dictionary loaded */
77  unsigned char ext_dict_status; /* 1=exception dictionary enabled */
78  unsigned char free_ram;	/* # pages (truncated) remaining for
79                                   text buffer */
80  unsigned char articulation;	/* nA; 0-9 */
81  unsigned char reverb;		/* nR; 0-9 */
82  unsigned char eob;		/* 7Fh value indicating end of
83                                   parameter block */
84  unsigned char has_indexing;	/* nonzero if indexing is implemented */
85};
86