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0
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1 /* libsst.c - SPARC sound tools library
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2 **
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3 ** Copyright (C) 1989 by Jef Poskanzer.
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4 **
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5 ** Permission to use, copy, modify, and distribute this software and its
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6 ** documentation for any purpose and without fee is hereby granted, provided
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7 ** that the above copyright notice appear in all copies and that both that
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8 ** copyright notice and this permission notice appear in supporting
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9 ** documentation. This software is provided "as is" without express or
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10 ** implied warranty.
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11
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12 ** Hacked on by jwz for emacs.
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13
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14 */
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15
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16 /* Synched up with: Not in FSF. */
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17
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18 #ifdef emacs
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19 #include <config.h>
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20 #include "lisp.h"
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21 #else
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22 #if __STDC__ || defined(STDC_HEADERS)
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23 #include <stdlib.h>
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24 #include <unistd.h>
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25 #endif
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26 #include <stdio.h>
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27 #endif
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28 #include <fcntl.h>
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29 #include "libsst.h"
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30
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31 #define AUDBUF 1024
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32
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33 extern void usleep();
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34
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35 int
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36 sst_open(play_level, record_level)
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37 int play_level, record_level;
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38 {
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39 int fd, i, gr, ger, gx;
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40 struct audio_ioctl ai;
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41 char *getenv(), *ep;
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42
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43 fd = open( "/dev/audio", O_RDWR );
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44 if ( fd < 0 )
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45 {
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46 perror( "sst_open: open /dev/audio" );
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47 return( fd );
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48 }
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49
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50 #ifdef AUDIOSETQSIZE /* This no longer exists as of 4.1.2. */
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51
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52 /* Shrink audio device's queue size, to cut down time delay. */
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53 i = AUDBUF;
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54 if ( ioctl( fd, AUDIOSETQSIZE, &i ) < 0 )
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55 {
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56 perror( "sst_open: SETQSIZE" );
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57 return( fd );
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58 }
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59 #endif /* AUDIOSETQSIZE */
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60
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61 /* Set gains. -10 <= ger <= 18, -18 <= gr <= 12, -18 <= gx <= 12. */
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62 if (!play_level)
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63 {
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64 play_level = 75;
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65 if ( (ep = getenv( "SST_PLAY" )) != NULL )
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66 {
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67 play_level = atoi( ep );
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68 if ( play_level < 0 || play_level > 99 )
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69 {
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70 warn( "sst_open: SST_PLAY must be between 0 and 99" );
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71 return( -1 );
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72 }
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73 }
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74 }
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75 if (!record_level)
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76 {
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77 record_level = 75;
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78 if ( (ep = getenv( "SST_RECORD" )) != NULL )
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79 {
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80 record_level = atoi( ep );
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81 if ( record_level < 0 || record_level > 99 )
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82 {
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83 warn( "sst_open: SST_RECORD must be between 0 and 99" );
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84 return( -1 );
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85 }
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86 }
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87 }
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88
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89 play_level = play_level * 59 / 100 - 28;
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90 ger = play_level / 2;
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91 gr = play_level - ger;
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92 if ( ger < -10 )
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93 {
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94 ger = -10;
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95 gr = play_level - ger;
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96 }
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97 if ( gr > 12 )
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98 {
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99 gr = 12;
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100 ger = play_level - gr;
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101 }
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102 gx = record_level * 31 / 100 - 18;
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103 sst_set_gr( fd, gr );
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104 sst_set_ger( fd, ger );
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105 sst_set_gx( fd, gx );
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106
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107 /* Initialize the MMR2 register to send the output to either
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108 ** the speaker or the earphone jack, depending on SST_EARPHONES.
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109 */
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110 ai.control = AUDIO_MAP_MMR2;
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111 if ( ioctl( fd, AUDIOGETREG, &ai ) < 0 )
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112 {
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113 perror( "sst_open: GETREG MMR2" );
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114 return( -1 );
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115 }
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116 if ( (ep = getenv( "SST_EARPHONES" )) != NULL )
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117 ai.data[0] &= ~AUDIO_MMR2_BITS_LS;
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118 else
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119 ai.data[0] |= AUDIO_MMR2_BITS_LS;
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120 if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
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121 {
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122 perror( "sst_open: SETREG MMR2" );
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123 return( fd );
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124 }
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125
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126 return fd;
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127 }
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128
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129 void
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130 sst_close( fd )
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131 int fd;
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132 {
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133 struct audio_ioctl ai;
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134
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135 ai.control = AUDIO_MAP_MMR1;
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136 ai.data[0] = 0;
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137 if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
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138 {
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139 perror( "sst_close: SETREG MMR1" );
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140 }
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141 ai.control = AUDIO_MAP_MMR2;
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142 ai.data[0] = 0;
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143 if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
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144 {
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145 perror( "sst_close: SETREG MMR2" );
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146 }
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147 close( fd );
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148 }
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149
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150 /* These are tables of values to be loaded into various gain registers.
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151 */
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152
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153 static unsigned char ger_table[][2] = {
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154 0xaa, 0xaa, /* -10db */
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155 0x79, 0xac,
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156 0x41, 0x99,
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157 0x9c, 0xde,
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158 0x74, 0x9c, /* -6db */
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159 0x6a, 0xae,
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160 0xab, 0xdf,
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161 0x64, 0xab,
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162 0x2a, 0xbd,
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163 0x5c, 0xce,
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164 0x00, 0x99, /* 0db */
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165 0x43, 0xdd,
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166 0x52, 0xef,
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167 0x55, 0x42,
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168 0x31, 0xdd,
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169 0x43, 0x1f,
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170 0x40, 0xdd, /* 6db */
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171 0x44, 0x0f,
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172 0x31, 0x1f,
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173 0x10, 0xdd,
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174 0x41, 0x0f,
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175 0x60, 0x0b,
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176 0x42, 0x10, /* 12db */
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177 0x11, 0x0f,
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178 0x72, 0x00,
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179 0x21, 0x10,
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180 0x22, 0x00,
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181 0x00, 0x0b,
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182 0x00, 0x0f, /* 18db */
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183 };
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184
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185
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186 static unsigned char gr_gx_table[][2] = {
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187 0x8b, 0x7c, /* -18db */
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188 0x8b, 0x35,
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189 0x8b, 0x24,
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190 0x91, 0x23,
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191 0x91, 0x2a,
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192 0x91, 0x3b,
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193 0x91, 0xf9, /* -12db */
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194 0x91, 0xb6,
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195 0x91, 0xa4,
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196 0x92, 0x32,
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197 0x92, 0xaa,
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198 0x93, 0xb3,
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199 0x9f, 0x91, /* -6db */
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200 0x9b, 0xf9,
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201 0x9a, 0x4a,
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202 0xa2, 0xa2,
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203 0xaa, 0xa3,
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204 0xbb, 0x52,
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205 0x08, 0x08, /* 0db */
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206 0x3d, 0xac,
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207 0x25, 0x33,
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208 0x21, 0x22,
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209 0x12, 0xa2,
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210 0x11, 0x3b,
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211 0x10, 0xf2, /* 6db */
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212 0x02, 0xca,
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213 0x01, 0x5a,
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214 0x01, 0x12,
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215 0x00, 0x32,
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216 0x00, 0x13,
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217 0x00, 0x0e, /* 12db */
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218 };
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219
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220 void
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221 sst_set_ger( fd, value )
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222 int fd, value;
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223 {
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224 struct audio_ioctl ai;
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225
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226 if ( ( value < -10 ) || ( value > 18 ) )
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227 {
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228 char buf [255];
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229 sprintf (buf, "sst_set_ger: GER %d out of range", value);
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230 warn(buf);
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231 return;
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232 }
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233
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234 /* Add 10 to the value to get the index into the table. */
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235 ai.control = AUDIO_MAP_GER;
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236 ai.data[0] = ger_table[value + 10][1];
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237 ai.data[1] = ger_table[value + 10][0];
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238
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239 if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
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240 {
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241 perror( "sst_set_ger: SETREG GER" );
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242 }
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243
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244 ai.control = AUDIO_MAP_MMR1;
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245 if ( ioctl( fd, AUDIOGETREG, &ai ) < 0 )
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246 {
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247 perror( "sst_set_ger: GETREG MMR1" );
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248 }
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249 ai.data[0] |= AUDIO_MMR1_BITS_LOAD_GER;
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250 if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
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251 {
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252 perror( "sst_set_ger: SETREG MMR1" );
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253 }
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254 }
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255
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256 void
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257 sst_set_gr( fd, value )
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258 int fd, value;
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259 {
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260 struct audio_ioctl ai;
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261
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262 if ( ( value < -18 ) || ( value > 12 ) )
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263 {
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264 char buf [255];
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265 sprintf (buf, "sst_set_gr: GR %d out of range", value);
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266 warn (buf);
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267 return;
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268 }
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269
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270 ai.control = AUDIO_MAP_GR;
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271 ai.data[0] = gr_gx_table[value + 18][1];
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272 ai.data[1] = gr_gx_table[value + 18][0];
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273
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274 if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
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275 {
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276 perror( "sst_set_gr: SETREG GR" );
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277 }
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278
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279 ai.control = AUDIO_MAP_MMR1;
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280 if ( ioctl( fd, AUDIOGETREG, &ai ) < 0 )
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281 {
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282 perror( "sst_set_gr: GETREG MMR1" );
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283 }
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284 ai.data[0] |= AUDIO_MMR1_BITS_LOAD_GR;
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285 if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
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286 {
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287 perror( "sst_set_gr: SETREG MMR1" );
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288 }
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289 }
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290
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291 void
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292 sst_set_gx( fd, value )
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293 int fd, value;
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294 {
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295 struct audio_ioctl ai;
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296 char buf [255];
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297
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298 if ( ( value < -18 ) || ( value > 12 ) )
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299 {
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300 sprintf (buf, "sst_set_gx: GX %d out of range", value);
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301 warn (buf);
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302 return;
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303 }
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304
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305 /* We add 18 to get the index into the table, since entry 0 represents
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306 * -18db.
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307 */
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308 ai.control = AUDIO_MAP_GX;
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309 ai.data[0] = gr_gx_table[value + 18][1];
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310 ai.data[1] = gr_gx_table[value + 18][0];
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311
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312 if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
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313 {
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314 perror( "sst_set_gx: SETREG GX" );
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315 }
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316
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317 ai.control = AUDIO_MAP_MMR1;
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318 if ( ioctl( fd, AUDIOGETREG, &ai ) < 0 )
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319 {
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320 perror( "sst_set_gx: GETREG MMR1" );
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321 }
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322 ai.data[0] |= AUDIO_MMR1_BITS_LOAD_GX;
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323 if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
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324 {
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325 perror( "sst_set_gx: SETREG MMR1" );
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326 }
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327 }
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328
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329 void
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330 sst_tones( fd, dhz1, dhz2, thz, rhz, usec )
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331 int fd, dhz1, dhz2, thz, rhz, usec;
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332 {
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333 char buf [255];
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334 struct audio_ioctl ai;
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335 int dval1, dval2, tval, rval;
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336 unsigned char oldmmr2, newmmr2;
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337
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338 if ( dhz1 == 0 )
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339 dval1 = 0;
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340 else
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341 {
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342 dval1 = ( dhz1 * 128 + 63 ) / 1000;
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343 if ( ( dval1 < 1 ) || ( dval1 > 255 ) )
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344 {
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345 sprintf(buf, "sst_tones: dhz1 %d out of range", dhz1 );
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346 warn (buf);
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347 return;
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348 }
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349 }
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350
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351 if ( dhz2 == 0 )
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352 dval2 = 0;
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353 else
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354 {
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355 dval2 = ( dhz2 * 128 + 63 ) / 1000;
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356 if ( ( dval2 < 1 ) || ( dval2 > 255 ) )
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357 {
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358 sprintf(buf, "sst_tones: dhz2 %d out of range", dhz2 );
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359 warn (buf);
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360 return;
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361 }
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362 }
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363
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364 if ( thz == 0 )
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365 tval = 0;
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366 else
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367 {
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368 tval = ( thz * 128 + 63 ) / 2000;
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369 if ( ( tval < 1 ) || ( tval > 255 ) )
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370 {
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371 sprintf(buf, "sst_tones: thz %d out of range", thz );
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372 warn (buf);
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373 return;
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374 }
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375 }
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376
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377 if ( rhz == 0 )
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378 rval = 0;
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379 else
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380 {
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381 rval = ( rhz * 128 + 63 ) / 2000;
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382 if ( ( rval < 1 ) || ( rval > 255 ) )
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383 {
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384 sprintf(buf, "sst_tones: rhz %d out of range", dhz2 );
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385 warn (buf);
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386 return;
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387 }
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388 }
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389
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390 if ( ( dval1 != 0 || dval2 != 0 ) && ( tval != 0 || rval != 0 ) )
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391 {
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392 sprintf(buf, "sst_tones: cannot use DTMF and TONE or RINGER at the same time", dhz2 );
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393 warn (buf);
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394 return;
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395 }
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396
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397 if ( tval != 0 && rval != 0 )
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398 {
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399 sprintf(buf, "sst_tones: cannot use TONE and RINGER at the same time", dhz2 );
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400 warn (buf);
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401 return;
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402 }
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403
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404 ai.control = AUDIO_MAP_MMR2;
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405 if ( ioctl( fd, AUDIOGETREG, &ai ) < 0 )
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406 {
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407 perror( "sst_tones: GETREG MMR2" );
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408 }
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409 oldmmr2 = newmmr2 = ai.data[0];
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410
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411 if ( dval1 != 0 || dval2 != 0 )
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412 {
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413 newmmr2 |= AUDIO_MMR2_BITS_DTMF;
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414 ai.control = AUDIO_MAP_FTGR;
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415 ai.data[0] = dval1;
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416 ai.data[1] = dval2;
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417 if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
|
|
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418 {
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|
|
419 perror( "sst_tones: SETREG FTGR" );
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|
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420 }
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|
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421 }
|
|
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422
|
|
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423 if ( tval != 0 )
|
|
|
424 {
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|
|
425 newmmr2 |= AUDIO_MMR2_BITS_TONE;
|
|
|
426 ai.control = AUDIO_MAP_FTGR;
|
|
|
427 ai.data[0] = tval;
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|
|
428 ai.data[1] = 0;
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|
|
429 if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
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|
|
430 {
|
|
|
431 perror( "sst_tones: SETREG FTGR" );
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|
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432 }
|
|
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433 }
|
|
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434
|
|
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435 if ( rval != 0 )
|
|
|
436 {
|
|
|
437 newmmr2 |= AUDIO_MMR2_BITS_RINGER;
|
|
|
438 ai.control = AUDIO_MAP_FTGR;
|
|
|
439 ai.data[0] = rval;
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|
|
440 ai.data[1] = 0;
|
|
|
441 if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
|
|
|
442 {
|
|
|
443 perror( "sst_tones: SETREG FTGR" );
|
|
|
444 }
|
|
|
445 }
|
|
|
446
|
|
|
447 ai.control = AUDIO_MAP_MMR2;
|
|
|
448 ai.data[0] = newmmr2;
|
|
|
449 if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
|
|
|
450 {
|
|
|
451 perror( "sst_tones: SETREG MMR2" );
|
|
|
452 }
|
|
|
453
|
|
|
454 usleep( usec );
|
|
|
455
|
|
|
456 ai.data[0] = oldmmr2;
|
|
|
457 if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
|
|
|
458 {
|
|
|
459 perror( "sst_tones: SETREG MMR2" );
|
|
|
460 }
|
|
|
461 }
|
|
|
462
|
|
|
463 void
|
|
|
464 sst_dtmf( fd, dial, usecper, usecpause )
|
|
|
465 int fd, usecper, usecpause;
|
|
|
466 char *dial;
|
|
|
467 {
|
|
|
468 char *cp;
|
|
|
469
|
|
|
470 for ( cp = dial; *cp != '\0'; cp++ )
|
|
|
471 {
|
|
|
472 switch ( *cp )
|
|
|
473 {
|
|
|
474 case '1': sst_tones( fd, 703, 1211, 0, 0, usecper ); break;
|
|
|
475 case '2': sst_tones( fd, 703, 1336, 0, 0, usecper ); break;
|
|
|
476 case '3': sst_tones( fd, 703, 1492, 0, 0, usecper ); break;
|
|
|
477 case 'A': sst_tones( fd, 703, 1648, 0, 0, usecper ); break;
|
|
|
478 case '4': sst_tones( fd, 773, 1211, 0, 0, usecper ); break;
|
|
|
479 case '5': sst_tones( fd, 773, 1336, 0, 0, usecper ); break;
|
|
|
480 case '6': sst_tones( fd, 773, 1492, 0, 0, usecper ); break;
|
|
|
481 case 'B': sst_tones( fd, 773, 1648, 0, 0, usecper ); break;
|
|
|
482 case '7': sst_tones( fd, 859, 1211, 0, 0, usecper ); break;
|
|
|
483 case '8': sst_tones( fd, 859, 1336, 0, 0, usecper ); break;
|
|
|
484 case '9': sst_tones( fd, 859, 1492, 0, 0, usecper ); break;
|
|
|
485 case 'C': sst_tones( fd, 859, 1648, 0, 0, usecper ); break;
|
|
|
486 case '*': sst_tones( fd, 945, 1211, 0, 0, usecper ); break;
|
|
|
487 case '0': sst_tones( fd, 945, 1336, 0, 0, usecper ); break;
|
|
|
488 case '#': sst_tones( fd, 945, 1492, 0, 0, usecper ); break;
|
|
|
489 case 'D': sst_tones( fd, 945, 1648, 0, 0, usecper ); break;
|
|
|
490
|
|
|
491 case ' ': case '-': case '(': case ')': case '+':
|
|
|
492 continue; /* ignore */
|
|
|
493
|
|
|
494 case ',': usleep( usecper ); break; /* big pause */
|
|
|
495
|
|
|
496 default:
|
|
|
497 {
|
|
|
498 char buf [255];
|
|
|
499 sprintf( buf, "sst_dtmf: unknown dialing code '%c'", *cp );
|
|
|
500 warn (buf);
|
|
|
501 }
|
|
|
502 }
|
|
|
503 usleep( usecpause );
|
|
|
504 }
|
|
|
505 }
|
