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 */ 64 struct 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