1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* speakup_dtlk.h - header file for speakups DoubleTalk driver. */ 3 4 #define SYNTH_IO_EXTENT 0x02 5 #define SYNTH_CLEAR 0x18 /* stops speech */ 6 /* TTS Port Status Flags */ 7 #define TTS_READABLE 0x80 /* mask for bit which is nonzero if a 8 * byte can be read from the TTS port 9 */ 10 #define TTS_SPEAKING 0x40 /* mask for SYNC bit, which is nonzero 11 * while DoubleTalk is producing 12 * output with TTS, PCM or CVSD 13 * synthesizers or tone generators 14 * (that is, all but LPC) 15 */ 16 #define TTS_SPEAKING2 0x20 /* mask for SYNC2 bit, 17 * which falls to zero up to 0.4 sec 18 * before speech stops 19 */ 20 #define TTS_WRITABLE 0x10 /* mask for RDY bit, which when set to 21 * 1, indicates the TTS port is ready 22 * to accept a byte of data. The RDY 23 * bit goes zero 2-3 usec after 24 * writing, and goes 1 again 180-190 25 * usec later. 26 */ 27 #define TTS_ALMOST_FULL 0x08 /* mask for AF bit: When set to 1, 28 * indicates that less than 300 bytes 29 * are available in the TTS input 30 * buffer. AF is always 0 in the PCM, 31 * TGN and CVSD modes. 32 */ 33 #define TTS_ALMOST_EMPTY 0x04 /* mask for AE bit: When set to 1, 34 * indicates that less than 300 bytes 35 * are remaining in DoubleTalk's input 36 * (TTS or PCM) buffer. AE is always 1 37 * in the TGN and CVSD modes. 38 */ 39 40 /* data returned by Interrogate command */ 41 struct synth_settings { 42 u_short serial_number; /* 0-7Fh:0-7Fh */ 43 u_char rom_version[24]; /* null terminated string */ 44 u_char mode; /* 0=Character; 1=Phoneme; 2=Text */ 45 u_char punc_level; /* nB; 0-7 */ 46 u_char formant_freq; /* nF; 0-9 */ 47 u_char pitch; /* nP; 0-99 */ 48 u_char speed; /* nS; 0-9 */ 49 u_char volume; /* nV; 0-9 */ 50 u_char tone; /* nX; 0-2 */ 51 u_char expression; /* nE; 0-9 */ 52 u_char ext_dict_loaded; /* 1=exception dictionary loaded */ 53 u_char ext_dict_status; /* 1=exception dictionary enabled */ 54 u_char free_ram; /* # pages (truncated) remaining for 55 * text buffer 56 */ 57 u_char articulation; /* nA; 0-9 */ 58 u_char reverb; /* nR; 0-9 */ 59 u_char eob; /* 7Fh value indicating end of 60 * parameter block 61 */ 62 u_char has_indexing; /* nonzero if indexing is implemented */ 63 }; 64