1 | //driver_sndio.c: |
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2 | |
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3 | /* |
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4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2009 |
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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 | #ifdef ROAR_HAVE_LIBSNDIO |
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27 | |
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28 | int driver_sndio_init_vio(struct roar_vio_calls * vio, struct driver_sndio * inst) { |
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29 | if ( vio == NULL ) |
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30 | return -1; |
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31 | |
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32 | memset(vio, 0, sizeof(struct roar_vio_calls)); |
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33 | |
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34 | vio->close = driver_sndio_close_vio; |
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35 | vio->write = driver_sndio_write; |
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36 | vio->sync = driver_sndio_sync; |
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37 | vio->ctl = driver_sndio_ctl; |
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38 | |
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39 | vio->inst = (void*) inst; |
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40 | |
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41 | return 0; |
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42 | } |
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43 | |
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44 | #define er() if ( self->handle ) sio_close(self->handle); if ( self->device ) free(self->device); free(self); return -1 |
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45 | int driver_sndio_open(struct roar_vio_calls * inst, char * device, struct roar_audio_info * info, int fh) { |
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46 | struct driver_sndio * self = NULL; |
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47 | |
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48 | if ( (self = malloc(sizeof(struct driver_sndio))) == NULL ) { |
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49 | ROAR_ERR("driver_sndio_open(*): Can not malloc() instance data: %s", strerror(errno)); |
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50 | return -1; |
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51 | } |
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52 | |
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53 | memset(self, 0, sizeof(struct driver_sndio)); |
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54 | memcpy(&(self->info), info, sizeof(struct roar_audio_info)); |
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55 | |
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56 | self->ssid = -1; |
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57 | |
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58 | if ( device != NULL ) |
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59 | self->device = strdup(device); |
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60 | |
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61 | if ( driver_sndio_init_vio(inst, self) == -1 ) { |
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62 | ROAR_ERR("driver_sndio_open(*): Can not init vio interface"); |
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63 | er(); |
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64 | } |
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65 | |
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66 | if ( driver_sndio_open_device(self) == -1 ) { |
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67 | ROAR_ERR("driver_sndio_open(*): Can not open audio device"); |
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68 | if ( self->handle ) |
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69 | sio_close(self->handle); |
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70 | |
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71 | if ( self->device ) |
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72 | free(self->device); |
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73 | |
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74 | free(self); |
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75 | |
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76 | return -1; |
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77 | // er(); |
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78 | } |
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79 | |
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80 | ROAR_DBG("driver_sndio_open(*): OSS devices opened :)"); |
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81 | |
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82 | return 0; |
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83 | } |
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84 | #undef er |
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85 | |
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86 | int driver_sndio_close_vio (struct roar_vio_calls * vio) { |
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87 | struct driver_sndio * self = vio->inst; |
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88 | |
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89 | if ( self->handle != NULL ) |
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90 | sio_close(self->handle); |
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91 | |
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92 | if ( self->device != NULL ) |
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93 | free(self->device); |
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94 | |
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95 | free(self); |
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96 | |
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97 | return 0; |
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98 | } |
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99 | |
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100 | int driver_sndio_open_device (struct driver_sndio * self) { |
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101 | |
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102 | if ( (self->handle = sio_open(self->device, SIO_PLAY, 0)) == NULL ) { |
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103 | ROAR_ERR("driver_sndio_open_device(*): Can not open sndio audio device"); |
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104 | return -1; |
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105 | } |
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106 | |
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107 | self->need_config = 1; |
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108 | |
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109 | return 0; |
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110 | } |
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111 | |
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112 | int driver_sndio_config_device(struct driver_sndio * self) { |
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113 | struct sio_par par; |
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114 | |
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115 | sio_initpar(&par); |
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116 | |
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117 | par.bits = self->info.bits; |
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118 | par.rate = self->info.rate; |
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119 | par.pchan = self->info.channels; |
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120 | |
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121 | switch (self->info.codec) { |
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122 | case ROAR_CODEC_PCM_S_LE: |
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123 | par.le = 1; |
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124 | par.sig = 1; |
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125 | break; |
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126 | case ROAR_CODEC_PCM_S_BE: |
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127 | par.le = 0; |
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128 | par.sig = 1; |
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129 | break; |
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130 | case ROAR_CODEC_PCM_U_LE: |
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131 | par.le = 1; |
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132 | par.sig = 0; |
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133 | break; |
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134 | case ROAR_CODEC_PCM_U_BE: |
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135 | par.le = 0; |
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136 | par.sig = 0; |
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137 | break; |
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138 | default: |
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139 | return -1; |
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140 | break; |
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141 | } |
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142 | |
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143 | if ( sio_setpar(self->handle, &par) == 0 ) { |
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144 | ROAR_ERR("driver_sndio_config_device(*): Can not set stream parameters"); |
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145 | return -1; |
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146 | } |
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147 | |
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148 | if ( sio_start(self->handle) == 0 ) { |
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149 | ROAR_ERR("driver_sndio_config_device(*): Can not start stream"); |
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150 | return -1; |
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151 | } |
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152 | |
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153 | self->need_config = 0; |
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154 | |
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155 | return 0; |
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156 | } |
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157 | |
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158 | int driver_sndio_reopen_device(struct driver_sndio * self) { |
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159 | return -1; |
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160 | } |
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161 | |
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162 | ssize_t driver_sndio_write (struct roar_vio_calls * vio, void *buf, size_t count) { |
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163 | struct driver_sndio * self = vio->inst; |
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164 | |
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165 | if ( self->need_config ) { |
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166 | if ( driver_sndio_config_device(vio->inst) == -1 ) { |
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167 | return -1; |
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168 | } |
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169 | } |
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170 | |
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171 | return sio_write(self->handle, buf, count); |
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172 | } |
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173 | |
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174 | int driver_sndio_sync (struct roar_vio_calls * vio) { |
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175 | return -1; |
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176 | } |
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177 | |
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178 | #define data(x) x: if ( data == NULL ) return -1; |
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179 | #define no_data(x) x: if ( data != NULL ) return -1; |
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180 | |
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181 | int driver_sndio_ctl (struct roar_vio_calls * vio, int cmd, void * data) { |
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182 | struct driver_sndio * self = vio->inst; |
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183 | unsigned d; |
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184 | |
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185 | switch (cmd) { |
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186 | case data(ROAR_VIO_CTL_SET_SSTREAMID) |
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187 | self->ssid = *(int *)data; |
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188 | break; |
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189 | case data(ROAR_VIO_CTL_SET_SSTREAM) |
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190 | self->stream = data; |
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191 | break; |
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192 | case data(ROAR_VIO_CTL_GET_AUINFO) |
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193 | memcpy(data, &(self->info), sizeof(struct roar_audio_info)); |
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194 | break; |
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195 | case data(ROAR_VIO_CTL_SET_AUINFO) |
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196 | memcpy(&(self->info), data, sizeof(struct roar_audio_info)); |
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197 | return driver_sndio_reopen_device(self); |
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198 | break; |
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199 | case ROAR_VIO_CTL_SET_VOLUME: |
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200 | switch (self->info.channels) { |
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201 | case 1: |
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202 | d = ROAR_MIXER(data)->mixer[0] * SIO_MAXVOL / ROAR_MIXER(data)->scale; |
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203 | break; |
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204 | case 2: |
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205 | if ( ROAR_MIXER(data)->mixer[0] != ROAR_MIXER(data)->mixer[1] ) |
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206 | return -1; |
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207 | d = ROAR_MIXER(data)->mixer[0] * SIO_MAXVOL / ROAR_MIXER(data)->scale; |
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208 | break; |
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209 | default: |
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210 | return -1; |
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211 | } |
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212 | return sio_setvol(self->handle, d) == 0 ? -1 : 0; |
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213 | break; |
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214 | default: |
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215 | return -1; |
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216 | break; |
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217 | } |
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218 | |
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219 | return 0; |
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220 | } |
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221 | |
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222 | #endif |
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223 | |
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224 | //ll |
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