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 - 2009-2012 |
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5 | * |
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6 | * This file is part of roarclients 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, 51 Franklin Street, Fifth Floor, |
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22 | * Boston, MA 02110-1301, USA. |
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23 | * |
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24 | */ |
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25 | |
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26 | #include <roaraudio.h> |
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27 | #include "driver.h" |
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28 | |
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29 | #if defined(ROAR_HAVE_OSS_BSD) || defined(ROAR_HAVE_OSS) |
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30 | |
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31 | #if defined(__OpenBSD__) || defined(__NetBSD__) |
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32 | #include <soundcard.h> |
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33 | #else |
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34 | #include <sys/soundcard.h> |
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35 | #endif |
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36 | #include <sys/ioctl.h> |
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37 | |
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38 | #ifdef SNDCTL_DSP_SETFRAGMENT |
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39 | static void roar_cdriver_oss_try_buf_setups(struct roar_vio_calls * calls) { |
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40 | struct roar_vio_sysio_ioctl ctl; |
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41 | int blocksizes[] = {11, 12, 13}; |
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42 | int blocks[] = {4, 5, 6, 3, 7, 2, 8}; |
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43 | size_t bs, b; |
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44 | int tmp; |
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45 | |
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46 | ctl.cmd = SNDCTL_DSP_SETFRAGMENT; |
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47 | ctl.argp = &tmp; |
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48 | |
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49 | for (bs = 0; bs < sizeof(blocksizes)/sizeof(int); bs++) { |
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50 | for (b = 0; b < sizeof(blocks) /sizeof(int); b++ ) { |
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51 | tmp = blocksizes[bs] | (blocks[b] << 16); |
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52 | if ( roar_vio_ctl(calls, ROAR_VIO_CTL_SYSIO_IOCTL, &ctl) == 0 ) |
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53 | return; |
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54 | } |
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55 | } |
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56 | } |
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57 | #endif |
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58 | |
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59 | #define _err() roar_vio_close(calls); return -1 |
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60 | |
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61 | int roar_cdriver_oss(struct roar_vio_calls * calls, const char * name, const char * dev, struct roar_audio_info * info, int dir) { |
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62 | struct roar_vio_defaults def; |
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63 | struct roar_vio_sysio_ioctl ctl; |
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64 | int tmp, ctmp; |
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65 | |
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66 | (void)name; |
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67 | |
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68 | // preinit ctl struct, we always pass ints in tmp. |
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69 | ctl.argp = &tmp; |
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70 | |
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71 | ROAR_DBG("roar_cdriver_oss(*) = ?"); |
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72 | |
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73 | #ifdef ROAR_DEFAULT_OSS_DEV |
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74 | if ( dev == NULL ) |
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75 | dev = ROAR_DEFAULT_OSS_DEV; |
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76 | #endif |
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77 | |
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78 | if ( dev == NULL ) |
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79 | return -1; |
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80 | |
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81 | ROAR_DBG("roar_cdriver_oss(*) = ?"); |
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82 | |
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83 | switch (dir) { |
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84 | case ROAR_DIR_PLAY: |
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85 | case ROAR_DIR_MONITOR: |
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86 | case ROAR_DIR_OUTPUT: |
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87 | tmp = O_WRONLY; |
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88 | break; |
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89 | case ROAR_DIR_BIDIR: |
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90 | case ROAR_DIR_RECPLAY: |
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91 | tmp = O_RDWR; |
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92 | break; |
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93 | case ROAR_DIR_RECORD: |
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94 | tmp = O_RDONLY; |
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95 | break; |
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96 | default: |
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97 | return -1; |
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98 | } |
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99 | |
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100 | ROAR_DBG("roar_cdriver_oss(*) = ?"); |
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101 | |
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102 | if ( roar_vio_dstr_init_defaults(&def, ROAR_VIO_DEF_TYPE_NONE, tmp, 0644) == -1 ) |
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103 | return -1; |
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104 | |
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105 | if ( roar_vio_open_dstr(calls, dev, &def, 1) == -1 ) |
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106 | return -1; |
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107 | |
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108 | // channels: |
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109 | #ifdef SNDCTL_DSP_CHANNELS |
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110 | tmp = info->channels; |
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111 | |
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112 | ctl.cmd = SNDCTL_DSP_CHANNELS; |
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113 | |
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114 | if ( roar_vio_ctl(calls, ROAR_VIO_CTL_SYSIO_IOCTL, &ctl) == -1 ) { |
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115 | _err(); |
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116 | } |
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117 | |
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118 | if ( tmp != (int)info->channels ) { |
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119 | _err(); |
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120 | } |
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121 | #else |
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122 | switch (info->channels) { |
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123 | case 1: tmp = 0; break; |
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124 | case 2: tmp = 1; break; |
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125 | default: _err(); |
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126 | } |
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127 | |
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128 | ctl.cmd = SNDCTL_DSP_STEREO; |
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129 | |
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130 | if ( roar_vio_ctl(calls, ROAR_VIO_CTL_SYSIO_IOCTL, &ctl) == -1 ) { |
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131 | _err(); |
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132 | } |
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133 | #endif |
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134 | |
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135 | // codec/bits: |
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136 | if ( info->codec != ROAR_CODEC_ALAW && info->codec != ROAR_CODEC_MULAW && info->bits != 16 ) { |
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137 | // other modes are currently not supported |
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138 | _err(); |
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139 | } |
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140 | |
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141 | switch (info->codec) { |
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142 | case ROAR_CODEC_PCM_S_LE: |
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143 | tmp = AFMT_S16_LE; |
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144 | break; |
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145 | case ROAR_CODEC_PCM_S_BE: |
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146 | tmp = AFMT_S16_BE; |
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147 | break; |
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148 | case ROAR_CODEC_PCM_U_LE: |
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149 | tmp = AFMT_U16_LE; |
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150 | break; |
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151 | case ROAR_CODEC_PCM_U_BE: |
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152 | tmp = AFMT_U16_BE; |
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153 | break; |
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154 | case ROAR_CODEC_ALAW: |
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155 | tmp = AFMT_A_LAW; |
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156 | break; |
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157 | case ROAR_CODEC_MULAW: |
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158 | tmp = AFMT_MU_LAW; |
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159 | break; |
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160 | default: |
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161 | _err(); |
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162 | } |
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163 | |
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164 | ctmp = tmp; |
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165 | #ifdef SNDCTL_DSP_SETFMT |
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166 | ctl.cmd = SNDCTL_DSP_SETFMT; |
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167 | #else |
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168 | ctl.cmd = SNDCTL_DSP_SAMPLESIZE; |
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169 | #endif |
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170 | |
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171 | if ( roar_vio_ctl(calls, ROAR_VIO_CTL_SYSIO_IOCTL, &ctl) == -1 ) { |
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172 | _err(); |
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173 | } |
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174 | |
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175 | if ( tmp != ctmp ) { |
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176 | _err(); |
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177 | } |
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178 | |
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179 | // rate: |
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180 | tmp = info->rate; |
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181 | |
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182 | ctl.cmd = SNDCTL_DSP_SPEED; |
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183 | if ( roar_vio_ctl(calls, ROAR_VIO_CTL_SYSIO_IOCTL, &ctl) == -1 ) { |
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184 | _err(); |
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185 | } |
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186 | |
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187 | if ( tmp != (int)info->rate ) { |
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188 | _err(); |
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189 | } |
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190 | |
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191 | #ifdef SNDCTL_DSP_SETFRAGMENT |
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192 | roar_cdriver_oss_try_buf_setups(calls); |
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193 | #endif |
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194 | |
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195 | return 0; |
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196 | } |
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197 | |
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198 | #endif |
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199 | |
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200 | //ll |
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