1
2#define DTLK_MINOR	0
3#define DTLK_IO_EXTENT	0x02
4
5	/* ioctl's use magic number of 0xa3 */
6#define DTLK_INTERROGATE 0xa390	/* get settings from the DoubleTalk */
7#define DTLK_STATUS 0xa391	/* get status from the DoubleTalk */
8
9
10#define DTLK_CLEAR 0x18		/* stops speech */
11
12#define DTLK_MAX_RETRIES (loops_per_jiffy/(10000/HZ))
13
14	/* TTS Port Status Flags */
15#define TTS_READABLE     0x80	/* mask for bit which is nonzero if a
16				   byte can be read from the TTS port */
17#define TTS_SPEAKING     0x40	/* mask for SYNC bit, which is nonzero
18				   while DoubleTalk is producing
19				   output with TTS, PCM or CVSD
20				   synthesizers or tone generators
21				   (that is, all but LPC) */
22#define TTS_SPEAKING2    0x20	/* mask for SYNC2 bit,
23				   which falls to zero up to 0.4 sec
24				   before speech stops */
25#define TTS_WRITABLE     0x10	/* mask for RDY bit, which when set to
26             			   1, indicates the TTS port is ready
27             			   to accept a byte of data.  The RDY
28             			   bit goes zero 2-3 usec after
29             			   writing, and goes 1 again 180-190
30             			   usec later. */
31#define TTS_ALMOST_FULL  0x08	/* mask for AF bit: When set to 1,
32				   indicates that less than 300 free
33				   bytes are available in the TTS
34				   input buffer. AF is always 0 in the
35				   PCM, TGN and CVSD modes. */
36#define TTS_ALMOST_EMPTY 0x04	/* mask for AE bit: When set to 1,
37				   indicates that less than 300 bytes
38				   of data remain in DoubleTalk's
39				   input (TTS or PCM) buffer. AE is
40				   always 1 in the TGN and CVSD
41				   modes. */
42
43	/* LPC speak commands */
44#define LPC_5220_NORMAL 0x60	/* 5220 format decoding table, normal rate */
45#define LPC_5220_FAST 0x64	/* 5220 format decoding table, fast rate */
46#define LPC_D6_NORMAL 0x20	/* D6 format decoding table, normal rate */
47#define LPC_D6_FAST 0x24	/* D6 format decoding table, fast rate */
48
49	/* LPC Port Status Flags (valid only after one of the LPC
50           speak commands) */
51#define LPC_SPEAKING     0x80	/* mask for TS bit: When set to 1,
52				   indicates the LPC synthesizer is
53				   producing speech.*/
54#define LPC_BUFFER_LOW   0x40	/* mask for BL bit: When set to 1,
55				   indicates that the hardware LPC
56				   data buffer has less than 30 bytes
57				   remaining. (Total internal buffer
58				   size = 4096 bytes.) */
59#define LPC_BUFFER_EMPTY 0x20	/* mask for BE bit: When set to 1,
60				   indicates that the LPC data buffer
61				   ran out of data (error condition if
62				   TS is also 1).  */
63
64				/* data returned by Interrogate command */
65struct dtlk_settings
66{
67  unsigned short serial_number;	/* 0-7Fh:0-7Fh */
68  unsigned char rom_version[24]; /* null terminated string */
69  unsigned char mode;		/* 0=Character; 1=Phoneme; 2=Text */
70  unsigned char punc_level;	/* nB; 0-7 */
71  unsigned char formant_freq;	/* nF; 0-9 */
72  unsigned char pitch;		/* nP; 0-99 */
73  unsigned char speed;		/* nS; 0-9 */
74  unsigned char volume;		/* nV; 0-9 */
75  unsigned char tone;		/* nX; 0-2 */
76  unsigned char expression;	/* nE; 0-9 */
77  unsigned char ext_dict_loaded; /* 1=exception dictionary loaded */
78  unsigned char ext_dict_status; /* 1=exception dictionary enabled */
79  unsigned char free_ram;	/* # pages (truncated) remaining for
80                                   text buffer */
81  unsigned char articulation;	/* nA; 0-9 */
82  unsigned char reverb;		/* nR; 0-9 */
83  unsigned char eob;		/* 7Fh value indicating end of
84                                   parameter block */
85  unsigned char has_indexing;	/* nonzero if indexing is implemented */
86};
87