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