1 /* SPDX-License-Identifier: GPL-2.0 */
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 */
65 struct 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
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