1 | //driver_oss.c: |
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2 | |
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3 | /* |
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4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008 |
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5 | * |
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6 | * This file is part of roard a part of RoarAudio, |
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7 | * a cross-platform sound system for both, home and professional use. |
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8 | * See README for details. |
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9 | * |
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10 | * This file is free software; you can redistribute it and/or modify |
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11 | * it under the terms of the GNU General Public License version 3 |
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12 | * as published by the Free Software Foundation. |
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13 | * |
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14 | * RoarAudio is distributed in the hope that it will be useful, |
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15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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17 | * GNU General Public License for more details. |
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18 | * |
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19 | * You should have received a copy of the GNU General Public License |
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20 | * along with this software; see the file COPYING. If not, write to |
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21 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
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22 | * |
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23 | */ |
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24 | |
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25 | #include "roard.h" |
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26 | #if defined(ROAR_HAVE_OSS_BSD) || defined(ROAR_HAVE_OSS) |
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27 | |
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28 | |
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29 | #define _get(vio,obj) (((struct driver_oss*)((vio)->inst))->obj) |
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30 | |
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31 | int driver_oss_init_vio(struct roar_vio_calls * vio, struct driver_oss * inst) { |
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32 | if ( vio == NULL ) |
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33 | return -1; |
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34 | |
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35 | memset(vio, 0, sizeof(struct roar_vio_calls)); |
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36 | |
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37 | vio->write = driver_oss_write; |
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38 | vio->nonblock = driver_oss_nonblock; |
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39 | vio->sync = driver_oss_sync; |
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40 | vio->ctl = driver_oss_ctl; |
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41 | vio->close = driver_oss_close_vio; |
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42 | |
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43 | vio->inst = (void*) inst; |
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44 | |
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45 | return 0; |
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46 | } |
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47 | |
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48 | int driver_oss_open_device(struct driver_oss * self) { |
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49 | int fh = self->fh; |
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50 | char * device = self->device; |
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51 | |
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52 | if ( fh != -1 ) |
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53 | return 0; |
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54 | |
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55 | #ifdef ROAR_DEFAULT_OSS_DEV |
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56 | if ( device == NULL ) |
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57 | device = ROAR_DEFAULT_OSS_DEV; |
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58 | #endif |
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59 | |
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60 | if ( device == NULL ) { |
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61 | ROAR_ERR("driver_oss_open_device(*): no default device found, you need to specify one manuelly"); |
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62 | return -1; |
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63 | } |
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64 | |
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65 | if ( (fh = open(device, O_WRONLY, 0644)) == -1 ) { |
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66 | ROAR_ERR("driver_oss_open_device(*): Can not open OSS device: %s: %s", device, strerror(errno)); |
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67 | return -1; |
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68 | } |
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69 | |
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70 | self->fh = fh; |
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71 | self->need_config = 1; |
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72 | |
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73 | return 0; |
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74 | } |
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75 | |
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76 | int driver_oss_config_device(struct driver_oss * self) { |
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77 | int fh = self->fh; |
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78 | struct roar_audio_info * info = &(self->info); |
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79 | int tmp, ctmp; |
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80 | char * es; |
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81 | int autoconfig = 0; |
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82 | int need_update_server = 0; |
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83 | |
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84 | if ( fh == -1 ) |
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85 | return -1; |
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86 | |
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87 | if ( self->ssid != -1 ) { |
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88 | autoconfig = streams_get_flag(self->ssid, ROAR_FLAG_AUTOCONF); |
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89 | } |
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90 | |
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91 | ROAR_DBG("driver_oss_config_device(self=%p): ssid=%i, autoconfig=%i", self, self->ssid, autoconfig); |
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92 | |
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93 | #ifdef SNDCTL_DSP_CHANNELS |
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94 | tmp = info->channels; |
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95 | |
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96 | if ( ioctl(fh, SNDCTL_DSP_CHANNELS, &tmp) == -1 ) { |
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97 | ROAR_ERR("driver_oss_config_device(*): can not set number of channels"); |
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98 | return -1; |
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99 | } |
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100 | |
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101 | if ( tmp != info->channels ) { |
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102 | if ( autoconfig ) { |
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103 | need_update_server = 1; |
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104 | self->info.channels = tmp; |
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105 | } else { |
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106 | ROAR_ERR("driver_oss_config_device(*): can not set requested numer of channels, OSS suggested %i channels, to use this restart with -oO channels=%i or set codec manuelly via -oO channels=num", tmp, tmp); |
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107 | return -1; |
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108 | } |
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109 | } |
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110 | #else |
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111 | switch (info->channels) { |
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112 | case 1: tmp = 0; break; |
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113 | case 2: tmp = 1; break; |
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114 | default: return -1; |
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115 | } |
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116 | |
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117 | if ( ioctl(fh, SNDCTL_DSP_STEREO, &tmp) == -1 ) { |
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118 | ROAR_ERR("driver_oss_config_device(*): can not set number of channels"); |
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119 | return -1; |
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120 | } |
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121 | #endif |
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122 | |
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123 | switch (info->codec) { |
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124 | case ROAR_CODEC_PCM_S_LE: |
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125 | switch (info->bits) { |
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126 | case 8: tmp = AFMT_S8; break; |
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127 | case 16: tmp = AFMT_S16_LE; break; |
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128 | // case 24: tmp = AFMT_S24_PACKED; break; |
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129 | #ifdef AFMT_S32_LE |
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130 | case 32: tmp = AFMT_S32_LE; break; |
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131 | #endif |
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132 | default: return -1; |
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133 | } |
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134 | break; |
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135 | case ROAR_CODEC_PCM_S_BE: |
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136 | switch (info->bits) { |
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137 | case 8: tmp = AFMT_S8; break; |
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138 | case 16: tmp = AFMT_S16_BE; break; |
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139 | // case 24: tmp = AFMT_S24_PACKED; break; |
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140 | #ifdef AFMT_S32_BE |
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141 | case 32: tmp = AFMT_S32_BE; break; |
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142 | #endif |
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143 | default: return -1; |
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144 | } |
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145 | break; |
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146 | case ROAR_CODEC_PCM_U_LE: |
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147 | switch (info->bits) { |
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148 | case 8: tmp = AFMT_U8; break; |
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149 | case 16: tmp = AFMT_U16_LE; break; |
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150 | default: return -1; |
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151 | } |
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152 | break; |
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153 | case ROAR_CODEC_PCM_U_BE: |
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154 | switch (info->bits) { |
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155 | case 8: tmp = AFMT_U8; break; |
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156 | case 16: tmp = AFMT_U16_BE; break; |
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157 | default: return -1; |
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158 | } |
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159 | case ROAR_CODEC_ALAW: |
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160 | tmp = AFMT_A_LAW; |
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161 | break; |
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162 | case ROAR_CODEC_MULAW: |
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163 | tmp = AFMT_MU_LAW; |
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164 | break; |
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165 | #ifdef AFMT_VORBIS |
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166 | case ROAR_CODEC_OGG_VORBIS: |
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167 | tmp = AFMT_VORBIS; |
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168 | break; |
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169 | #endif |
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170 | default: |
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171 | return -1; |
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172 | break; |
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173 | } |
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174 | |
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175 | ctmp = tmp; |
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176 | #ifdef SNDCTL_DSP_SETFMT |
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177 | if ( ioctl(fh, SNDCTL_DSP_SETFMT, &tmp) == -1 ) { |
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178 | #else |
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179 | if ( ioctl(fh, SNDCTL_DSP_SAMPLESIZE, &tmp) == -1 ) { |
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180 | #endif |
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181 | ROAR_ERR("driver_oss_config_device(*): can not set sample format"); |
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182 | return -1; |
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183 | } |
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184 | |
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185 | if ( tmp != ctmp ) { |
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186 | if ( autoconfig ) { |
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187 | need_update_server = 1; |
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188 | switch (tmp) { |
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189 | case AFMT_S8 : self->info.bits = 8; self->info.codec = ROAR_CODEC_PCM; break; |
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190 | case AFMT_U8 : self->info.bits = 8; self->info.codec = ROAR_CODEC_PCM_U_LE; break; |
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191 | case AFMT_S16_LE: self->info.bits = 16; self->info.codec = ROAR_CODEC_PCM_S_LE; break; |
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192 | case AFMT_S16_BE: self->info.bits = 16; self->info.codec = ROAR_CODEC_PCM_S_BE; break; |
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193 | case AFMT_U16_LE: self->info.bits = 16; self->info.codec = ROAR_CODEC_PCM_U_LE; break; |
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194 | case AFMT_U16_BE: self->info.bits = 16; self->info.codec = ROAR_CODEC_PCM_U_BE; break; |
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195 | #ifdef AFMT_S32_LE |
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196 | case AFMT_S32_LE: self->info.bits = 32; self->info.codec = ROAR_CODEC_PCM_S_LE; break; |
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197 | #endif |
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198 | #ifdef AFMT_S32_BE |
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199 | case AFMT_S32_BE: self->info.bits = 32; self->info.codec = ROAR_CODEC_PCM_S_BE; break; |
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200 | #endif |
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201 | /* |
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202 | case AFMT_A_LAW : self->info.bits = 8; self->info.codec = ROAR_CODEC_ALAW; break; |
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203 | case AFMT_MU_LAW: self->info.bits = 8; self->info.codec = ROAR_CODEC_MULAW; break; |
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204 | #ifdef AFMT_VORBIS |
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205 | case AFMT_VORBIS: self->info.codec = ROAR_CODEC_OGG_VORBIS; break; |
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206 | #endif |
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207 | */ |
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208 | case AFMT_A_LAW: |
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209 | case AFMT_MU_LAW: |
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210 | #ifdef AFMT_VORBIS |
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211 | case AFMT_VORBIS: |
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212 | #endif |
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213 | ROAR_WARN("driver_oss_config_device(*): Auto config failed: OSS Codec %i needs a codecfilter!", tmp); |
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214 | ROAR_ERR("driver_oss_config_device(*): can not set requested codec, set codec manuelly via -oO codec=somecodec"); |
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215 | return -1; |
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216 | break; |
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217 | default: |
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218 | ROAR_WARN("driver_oss_config_device(*): Auto config failed: unknown OSS Codec %i", tmp); |
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219 | ROAR_ERR("driver_oss_config_device(*): can not set requested codec, set codec manuelly via -oO codec=somecodec"); |
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220 | return -1; |
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221 | break; |
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222 | } |
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223 | } else { |
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224 | es = NULL; |
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225 | switch (tmp) { |
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226 | case AFMT_S8 : es = "bits=8,codec=pcm"; break; |
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227 | case AFMT_U8 : es = "bits=8,codec=pcm_u_le"; break; |
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228 | case AFMT_S16_LE: es = "bits=16,codec=pcm_s_le"; break; |
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229 | case AFMT_S16_BE: es = "bits=16,codec=pcm_s_be"; break; |
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230 | case AFMT_U16_LE: es = "bits=16,codec=pcm_u_le"; break; |
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231 | case AFMT_U16_BE: es = "bits=16,codec=pcm_u_be"; break; |
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232 | #ifdef AFMT_S32_LE |
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233 | case AFMT_S32_LE: es = "bits=32,codec=pcm_s_le"; break; |
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234 | #endif |
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235 | #ifdef AFMT_S32_BE |
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236 | case AFMT_S32_BE: es = "bits=32,codec=pcm_s_be"; break; |
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237 | #endif |
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238 | case AFMT_A_LAW : es = "codec=alaw"; break; |
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239 | case AFMT_MU_LAW: es = "codec=mulaw"; break; |
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240 | #ifdef AFMT_VORBIS |
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241 | case AFMT_VORBIS: es = "codec=ogg_vorbis"; break; |
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242 | #endif |
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243 | } |
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244 | |
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245 | if ( es != NULL ) { |
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246 | ROAR_ERR("driver_oss_config_device(*): can not set requested codec, OSS retruned another codec than requested, to use this restart with -oO %s or set codec manuelly via -oO codec=somecodec", es); |
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247 | } else { |
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248 | ROAR_ERR("driver_oss_config_device(*): can not set requested codec, set codec manuelly via -oO codec=somecodec"); |
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249 | } |
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250 | return -1; |
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251 | } |
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252 | } |
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253 | |
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254 | tmp = info->rate; |
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255 | |
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256 | if ( ioctl(fh, SNDCTL_DSP_SPEED, &tmp) == -1 ) { |
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257 | ROAR_ERR("driver_oss_config_device(*): can not set sample rate"); |
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258 | return -1; |
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259 | } |
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260 | |
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261 | if ( tmp != info->rate ) { |
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262 | if ( autoconfig ) { |
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263 | need_update_server = 1; |
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264 | self->info.rate = tmp; |
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265 | } else { |
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266 | ROAR_WARN("driver_oss_config_device(*): Device does not support requested sample rate: req=%iHz, sug=%iHz", |
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267 | info->rate, tmp); |
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268 | |
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269 | if ( tmp < info->rate * 0.98 || tmp > info->rate * 1.02 ) { |
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270 | ROAR_ERR("driver_oss_config_device(*): sample rate out of acceptable accuracy"); |
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271 | return -1; |
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272 | } |
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273 | } |
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274 | } |
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275 | |
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276 | // latency things: |
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277 | #ifdef SNDCTL_DSP_SETFRAGMENT |
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278 | |
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279 | // defaults |
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280 | if ( self->blocksize < 1 ) |
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281 | self->blocksize = 2048; |
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282 | if ( self->blocks < 1 ) |
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283 | self->blocks = 4; |
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284 | |
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285 | switch (self->blocksize) { |
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286 | case 1<< 4: tmp = 4; break; |
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287 | case 1<< 5: tmp = 5; break; |
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288 | case 1<< 6: tmp = 6; break; |
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289 | case 1<< 7: tmp = 7; break; |
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290 | case 1<< 8: tmp = 8; break; |
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291 | case 1<< 9: tmp = 9; break; |
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292 | case 1<<10: tmp = 10; break; |
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293 | case 1<<11: tmp = 11; break; |
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294 | case 1<<12: tmp = 12; break; |
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295 | case 1<<13: tmp = 13; break; |
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296 | case 1<<14: tmp = 14; break; |
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297 | case 1<<15: tmp = 15; break; |
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298 | case 1<<16: tmp = 16; break; |
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299 | default: tmp = 11; |
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300 | ROAR_WARN("driver_oss_config_device(*): blocksize of %i byte is not a valid value. trying 2KB", self->blocksize); |
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301 | break; |
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302 | } |
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303 | |
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304 | ROAR_DBG("driver_oss_config_device(*): blocksize=%i(N=%i), blocks=%i", self->blocksize, tmp, self->blocks); |
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305 | |
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306 | tmp |= self->blocks << 16; |
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307 | if ( ioctl(fh, SNDCTL_DSP_SETFRAGMENT, &tmp) == -1 ) { |
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308 | ROAR_WARN("driver_oss_ctl(*): Can not set fragment size, sorry :("); |
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309 | } |
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310 | #endif |
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311 | |
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312 | if ( need_update_server ) { |
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313 | if ( self->stream == NULL ) { |
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314 | streams_get(self->ssid, &(self->stream)); |
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315 | } |
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316 | |
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317 | if ( self->stream == NULL ) { |
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318 | ROAR_ERR("driver_oss_config_device(*): Auto config failed: can not set new values for stream: no stream object known"); |
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319 | return -1; |
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320 | } |
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321 | |
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322 | memcpy(&(ROAR_STREAM(self->stream)->info), info, sizeof(struct roar_audio_info)); |
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323 | } |
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324 | |
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325 | self->need_config = 0; |
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326 | |
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327 | return 0; |
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328 | } |
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329 | |
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330 | #define er() close(self->fh); if ( self->device ) free(self->device); free(self); return -1 |
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331 | int driver_oss_open(struct roar_vio_calls * inst, char * device, struct roar_audio_info * info, int fh) { |
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332 | struct driver_oss * self = NULL; |
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333 | |
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334 | if ( (self = malloc(sizeof(struct driver_oss))) == NULL ) { |
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335 | ROAR_ERR("driver_oss_open(*): Can not malloc() instance data: %s", strerror(errno)); |
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336 | return -1; |
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337 | } |
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338 | |
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339 | memset(self, 0, sizeof(struct driver_oss)); |
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340 | memcpy(&(self->info), info, sizeof(struct roar_audio_info)); |
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341 | |
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342 | self->ssid = -1; |
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343 | self->fh = fh; |
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344 | |
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345 | if ( device != NULL ) |
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346 | self->device = strdup(device); |
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347 | |
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348 | if ( driver_oss_init_vio(inst, self) == -1 ) { |
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349 | ROAR_ERR("driver_oss_open(*): Can not init vio interface"); |
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350 | er(); |
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351 | } |
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352 | |
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353 | if ( driver_oss_open_device(self) == -1 ) { |
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354 | ROAR_ERR("driver_oss_open(*): Can not open audio device"); |
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355 | er(); |
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356 | } |
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357 | |
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358 | ROAR_DBG("driver_oss_open(*): OSS devices opened :)"); |
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359 | |
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360 | return 0; |
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361 | } |
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362 | #undef er |
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363 | |
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364 | int driver_oss_reopen_device(struct driver_oss * self) { |
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365 | #ifdef SNDCTL_DSP_SYNC |
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366 | ioctl(self->fh, SNDCTL_DSP_SYNC, NULL); |
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367 | #endif |
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368 | |
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369 | close(self->fh); |
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370 | |
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371 | if ( driver_oss_open_device(self) == -1 ) |
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372 | return -1; |
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373 | |
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374 | self->need_config = 1; |
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375 | |
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376 | return 0; |
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377 | } |
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378 | |
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379 | int driver_oss_close(DRIVER_USERDATA_T inst) { |
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380 | return roar_vio_close((struct roar_vio_calls *)inst); |
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381 | } |
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382 | |
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383 | int driver_oss_close_vio(struct roar_vio_calls * vio) { |
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384 | close(_get(vio,fh)); |
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385 | |
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386 | if ( _get(vio,device) != NULL ) |
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387 | free(_get(vio,device)); |
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388 | |
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389 | free(vio->inst); |
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390 | return 0; |
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391 | } |
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392 | |
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393 | int driver_oss_nonblock(struct roar_vio_calls * vio, int state) { |
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394 | if ( roar_socket_nonblock(_get(vio,fh), state) == -1 ) |
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395 | return -1; |
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396 | |
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397 | if ( state == ROAR_SOCKET_NONBLOCK ) |
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398 | return 0; |
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399 | |
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400 | roar_vio_sync(vio); |
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401 | |
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402 | return 0; |
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403 | } |
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404 | |
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405 | int driver_oss_sync(struct roar_vio_calls * vio) { |
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406 | #ifdef SNDCTL_DSP_SYNC |
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407 | return ioctl(_get(vio,fh), SNDCTL_DSP_SYNC, NULL); |
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408 | #else |
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409 | return 0; |
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410 | #endif |
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411 | } |
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412 | |
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413 | int driver_oss_ctl(struct roar_vio_calls * vio, int cmd, void * data) { |
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414 | struct driver_oss * self = vio->inst; |
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415 | #ifdef SNDCTL_DSP_GETODELAY |
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416 | int d; |
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417 | #endif |
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418 | |
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419 | ROAR_DBG("driver_oss_ctl(vio=%p, cmd=0x%.8x, data=%p) = ?", vio, cmd, data); |
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420 | |
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421 | if ( vio == NULL ) |
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422 | return -1; |
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423 | |
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424 | switch (cmd) { |
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425 | case ROAR_VIO_CTL_GET_DELAY: |
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426 | #ifdef SNDCTL_DSP_GETODELAY |
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427 | if ( ioctl(_get(vio,fh), SNDCTL_DSP_GETODELAY, &d) == -1 ) |
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428 | return -1; |
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429 | |
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430 | ROAR_DBG("driver_oss_ctl(*): delay=%i byte", d); |
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431 | |
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432 | *(uint_least32_t *)data = d; |
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433 | #else |
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434 | return -1; |
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435 | #endif |
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436 | break; |
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437 | case ROAR_VIO_CTL_SET_DBLOCKS: |
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438 | #ifdef SNDCTL_DSP_SETFRAGMENT |
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439 | if ( !self->need_config ) { |
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440 | ROAR_WARN("driver_oss_ctl(*): possible late ROAR_VIO_CTL_SET_DBLOCKS, setting anyway."); |
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441 | } |
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442 | |
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443 | self->blocks = *(uint_least32_t *)data; |
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444 | #else |
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445 | return -1; |
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446 | #endif |
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447 | break; |
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448 | case ROAR_VIO_CTL_SET_DBLKSIZE: |
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449 | #ifdef SNDCTL_DSP_SETFRAGMENT |
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450 | if ( !self->need_config ) { |
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451 | ROAR_WARN("driver_oss_ctl(*): possible late ROAR_VIO_CTL_SET_DBLKSIZE, setting anyway."); |
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452 | } |
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453 | |
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454 | self->blocksize = *(uint_least32_t *)data; |
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455 | #else |
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456 | return -1; |
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457 | #endif |
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458 | break; |
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459 | case ROAR_VIO_CTL_GET_DBLKSIZE: |
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460 | if ( !self->blocksize ) |
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461 | return -1; |
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462 | |
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463 | *(uint_least32_t *)data = self->blocksize; |
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464 | break; |
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465 | case ROAR_VIO_CTL_SET_SSTREAMID: |
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466 | self->ssid = *(int *)data; |
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467 | break; |
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468 | case ROAR_VIO_CTL_SET_SSTREAM: |
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469 | self->stream = data; |
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470 | break; |
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471 | case ROAR_VIO_CTL_GET_AUINFO: |
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472 | memcpy(data, &(self->info), sizeof(struct roar_audio_info)); |
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473 | break; |
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474 | case ROAR_VIO_CTL_SET_AUINFO: |
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475 | memcpy(&(self->info), data, sizeof(struct roar_audio_info)); |
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476 | return driver_oss_reopen_device(self); |
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477 | break; |
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478 | #ifdef SNDCTL_DSP_SETPLAYVOL |
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479 | case ROAR_VIO_CTL_SET_VOLUME: |
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480 | switch (self->info.channels) { |
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481 | case 1: |
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482 | d = ROAR_MIXER(data)->mixer[0] * 100 / ROAR_MIXER(data)->scale; |
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483 | d |= d << 8; |
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484 | break; |
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485 | case 2: |
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486 | d = ROAR_MIXER(data)->mixer[0] * 100 / ROAR_MIXER(data)->scale; |
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487 | d |= (ROAR_MIXER(data)->mixer[0] * 100 / ROAR_MIXER(data)->scale) << 8; |
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488 | break; |
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489 | default: |
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490 | return -1; |
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491 | } |
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492 | return ioctl(_get(vio,fh), SNDCTL_DSP_SETPLAYVOL, &d); |
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493 | break; |
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494 | #endif |
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495 | default: |
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496 | return -1; |
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497 | } |
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498 | |
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499 | return 0; |
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500 | } |
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501 | |
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502 | ssize_t driver_oss_write (struct roar_vio_calls * vio, void *buf, size_t count) { |
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503 | if ( _get(vio,fh) == -1 ) |
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504 | return -1; |
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505 | |
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506 | if ( _get(vio,need_config) ) { |
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507 | if ( driver_oss_config_device(vio->inst) == -1 ) { |
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508 | return -1; |
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509 | } |
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510 | } |
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511 | |
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512 | return write(_get(vio,fh), buf, count); |
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513 | } |
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514 | |
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515 | #endif |
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516 | //ll |
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