dtlk.h 3.5 KB

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  1. /* SPDX-License-Identifier: GPL-2.0 */
  2. #define DTLK_MINOR 0
  3. #define DTLK_IO_EXTENT 0x02
  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. #define DTLK_CLEAR 0x18 /* stops speech */
  8. #define DTLK_MAX_RETRIES (loops_per_jiffy/(10000/HZ))
  9. /* TTS Port Status Flags */
  10. #define TTS_READABLE 0x80 /* mask for bit which is nonzero if a
  11. byte can be read from the TTS port */
  12. #define TTS_SPEAKING 0x40 /* mask for SYNC bit, which is nonzero
  13. while DoubleTalk is producing
  14. output with TTS, PCM or CVSD
  15. synthesizers or tone generators
  16. (that is, all but LPC) */
  17. #define TTS_SPEAKING2 0x20 /* mask for SYNC2 bit,
  18. which falls to zero up to 0.4 sec
  19. before speech stops */
  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. #define TTS_ALMOST_FULL 0x08 /* mask for AF bit: When set to 1,
  27. indicates that less than 300 free
  28. bytes are available in the TTS
  29. input buffer. AF is always 0 in the
  30. PCM, TGN and CVSD modes. */
  31. #define TTS_ALMOST_EMPTY 0x04 /* mask for AE bit: When set to 1,
  32. indicates that less than 300 bytes
  33. of data remain in DoubleTalk's
  34. input (TTS or PCM) buffer. AE is
  35. always 1 in the TGN and CVSD
  36. modes. */
  37. /* LPC speak commands */
  38. #define LPC_5220_NORMAL 0x60 /* 5220 format decoding table, normal rate */
  39. #define LPC_5220_FAST 0x64 /* 5220 format decoding table, fast rate */
  40. #define LPC_D6_NORMAL 0x20 /* D6 format decoding table, normal rate */
  41. #define LPC_D6_FAST 0x24 /* D6 format decoding table, fast rate */
  42. /* LPC Port Status Flags (valid only after one of the LPC
  43. speak commands) */
  44. #define LPC_SPEAKING 0x80 /* mask for TS bit: When set to 1,
  45. indicates the LPC synthesizer is
  46. producing speech.*/
  47. #define LPC_BUFFER_LOW 0x40 /* mask for BL bit: When set to 1,
  48. indicates that the hardware LPC
  49. data buffer has less than 30 bytes
  50. remaining. (Total internal buffer
  51. size = 4096 bytes.) */
  52. #define LPC_BUFFER_EMPTY 0x20 /* mask for BE bit: When set to 1,
  53. indicates that the LPC data buffer
  54. ran out of data (error condition if
  55. TS is also 1). */
  56. /* data returned by Interrogate command */
  57. struct dtlk_settings
  58. {
  59. unsigned short serial_number; /* 0-7Fh:0-7Fh */
  60. unsigned char rom_version[24]; /* null terminated string */
  61. unsigned char mode; /* 0=Character; 1=Phoneme; 2=Text */
  62. unsigned char punc_level; /* nB; 0-7 */
  63. unsigned char formant_freq; /* nF; 0-9 */
  64. unsigned char pitch; /* nP; 0-99 */
  65. unsigned char speed; /* nS; 0-9 */
  66. unsigned char volume; /* nV; 0-9 */
  67. unsigned char tone; /* nX; 0-2 */
  68. unsigned char expression; /* nE; 0-9 */
  69. unsigned char ext_dict_loaded; /* 1=exception dictionary loaded */
  70. unsigned char ext_dict_status; /* 1=exception dictionary enabled */
  71. unsigned char free_ram; /* # pages (truncated) remaining for
  72. text buffer */
  73. unsigned char articulation; /* nA; 0-9 */
  74. unsigned char reverb; /* nR; 0-9 */
  75. unsigned char eob; /* 7Fh value indicating end of
  76. parameter block */
  77. unsigned char has_indexing; /* nonzero if indexing is implemented */
  78. };