| #define DTLK_MINOR 0 |
| #define DTLK_IO_EXTENT 0x02 |
| |
| /* ioctl's use magic number of 0xa3 */ |
| #define DTLK_INTERROGATE 0xa390 /* get settings from the DoubleTalk */ |
| #define DTLK_STATUS 0xa391 /* get status from the DoubleTalk */ |
| |
| |
| #define DTLK_CLEAR 0x18 /* stops speech */ |
| |
| #define DTLK_MAX_RETRIES (loops_per_jiffy/(10000/HZ)) |
| |
| /* TTS Port Status Flags */ |
| #define TTS_READABLE 0x80 /* mask for bit which is nonzero if a |
| byte can be read from the TTS port */ |
| #define TTS_SPEAKING 0x40 /* mask for SYNC bit, which is nonzero |
| while DoubleTalk is producing |
| output with TTS, PCM or CVSD |
| synthesizers or tone generators |
| (that is, all but LPC) */ |
| #define TTS_SPEAKING2 0x20 /* mask for SYNC2 bit, |
| which falls to zero up to 0.4 sec |
| before speech stops */ |
| #define TTS_WRITABLE 0x10 /* mask for RDY bit, which when set to |
| 1, indicates the TTS port is ready |
| to accept a byte of data. The RDY |
| bit goes zero 2-3 usec after |
| writing, and goes 1 again 180-190 |
| usec later. */ |
| #define TTS_ALMOST_FULL 0x08 /* mask for AF bit: When set to 1, |
| indicates that less than 300 free |
| bytes are available in the TTS |
| input buffer. AF is always 0 in the |
| PCM, TGN and CVSD modes. */ |
| #define TTS_ALMOST_EMPTY 0x04 /* mask for AE bit: When set to 1, |
| indicates that less than 300 bytes |
| of data remain in DoubleTalk's |
| input (TTS or PCM) buffer. AE is |
| always 1 in the TGN and CVSD |
| modes. */ |
| |
| /* LPC speak commands */ |
| #define LPC_5220_NORMAL 0x60 /* 5220 format decoding table, normal rate */ |
| #define LPC_5220_FAST 0x64 /* 5220 format decoding table, fast rate */ |
| #define LPC_D6_NORMAL 0x20 /* D6 format decoding table, normal rate */ |
| #define LPC_D6_FAST 0x24 /* D6 format decoding table, fast rate */ |
| |
| /* LPC Port Status Flags (valid only after one of the LPC |
| speak commands) */ |
| #define LPC_SPEAKING 0x80 /* mask for TS bit: When set to 1, |
| indicates the LPC synthesizer is |
| producing speech.*/ |
| #define LPC_BUFFER_LOW 0x40 /* mask for BL bit: When set to 1, |
| indicates that the hardware LPC |
| data buffer has less than 30 bytes |
| remaining. (Total internal buffer |
| size = 4096 bytes.) */ |
| #define LPC_BUFFER_EMPTY 0x20 /* mask for BE bit: When set to 1, |
| indicates that the LPC data buffer |
| ran out of data (error condition if |
| TS is also 1). */ |
| |
| /* data returned by Interrogate command */ |
| struct dtlk_settings |
| { |
| unsigned short serial_number; /* 0-7Fh:0-7Fh */ |
| unsigned char rom_version[24]; /* null terminated string */ |
| unsigned char mode; /* 0=Character; 1=Phoneme; 2=Text */ |
| unsigned char punc_level; /* nB; 0-7 */ |
| unsigned char formant_freq; /* nF; 0-9 */ |
| unsigned char pitch; /* nP; 0-99 */ |
| unsigned char speed; /* nS; 0-9 */ |
| unsigned char volume; /* nV; 0-9 */ |
| unsigned char tone; /* nX; 0-2 */ |
| unsigned char expression; /* nE; 0-9 */ |
| unsigned char ext_dict_loaded; /* 1=exception dictionary loaded */ |
| unsigned char ext_dict_status; /* 1=exception dictionary enabled */ |
| unsigned char free_ram; /* # pages (truncated) remaining for |
| text buffer */ |
| unsigned char articulation; /* nA; 0-9 */ |
| unsigned char reverb; /* nR; 0-9 */ |
| unsigned char eob; /* 7Fh value indicating end of |
| parameter block */ |
| unsigned char has_indexing; /* nonzero if indexing is implemented */ |
| }; |
