1 | //driver.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 | |
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27 | struct roar_driver g_driver[] = { |
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28 | { "null", "null audio driver", "/dev/null", DRV_FLAG_NONE, NULL, NULL, NULL, NULL, NULL, NULL, NULL}, |
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29 | #ifdef ROAR_HAVE_ESD |
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30 | { "esd", "EsounD audio driver", "localhost, remote.host.dom", DRV_FLAG_NONE, |
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31 | NULL, driver_esd_close, driver_esd_pause, NULL, NULL, driver_esd_flush, driver_esd_open_vio}, |
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32 | #endif |
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33 | { "roar", "RoarAudio driver", "localhost, remote.host.dom", DRV_FLAG_NONE, |
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34 | NULL, driver_roar_close, NULL, NULL, NULL, driver_roar_flush, driver_roar_open_vio}, |
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35 | #ifdef ROAR_HAVE_IO_POSIX |
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36 | { "raw", "RAW PCM driver", "/some/file", DRV_FLAG_FHSEC, |
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37 | NULL, NULL, NULL, NULL, NULL, driver_raw_flush, driver_raw_open_vio}, |
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38 | #endif |
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39 | #if defined(ROAR_HAVE_OSS_BSD) || defined(ROAR_HAVE_OSS) |
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40 | #ifndef ROAR_DEFAULT_OSS_DEV |
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41 | #define ROAR_DEFAULT_OSS_DEV "no default device" |
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42 | #endif |
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43 | { "oss", "Open Sound System", ROAR_DEFAULT_OSS_DEV, DRV_FLAG_NONE, |
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44 | NULL, NULL, NULL, NULL, NULL, NULL, driver_oss_open}, |
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45 | #endif |
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46 | #ifdef ROAR_HAVE_LIBAO |
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47 | { "ao", "libao audio driver", "DRIVER", DRV_FLAG_NONE, |
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48 | NULL, driver_ao_close, NULL, NULL, NULL, NULL, driver_ao_open_vio}, |
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49 | #endif |
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50 | #ifdef ROAR_HAVE_LIBSHOUT |
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51 | {"shout", "libshout streaming", "http://user:pw@host:port/mount.ogg", DRV_FLAG_NONE, |
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52 | NULL, driver_shout_close, NULL, NULL, NULL, NULL, driver_shout_open_vio}, |
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53 | #endif |
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54 | #ifdef ROAR_HAVE_LIBSNDIO |
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55 | {"sndio", "OpenBSD sndio", "/dev/audio, /tmp/aucat-<uid>/default", DRV_FLAG_NONE, |
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56 | NULL, NULL, NULL, NULL, NULL, NULL, driver_sndio_open}, |
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57 | #endif |
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58 | {"dmx", "DMX512 driver", "/dev/dmx", DRV_FLAG_FHSEC, |
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59 | NULL, NULL, NULL, NULL, NULL, NULL, driver_dmx_open_vio}, |
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60 | {NULL, NULL, NULL, DRV_FLAG_NONE, NULL, NULL, NULL, NULL, NULL, NULL, NULL} // end of list |
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61 | }; |
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62 | |
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63 | void print_driverlist (void) { |
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64 | int i; |
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65 | |
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66 | printf(" Driver Flag - Description (devices)\n"); |
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67 | printf("------------------------------------------------------\n"); |
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68 | |
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69 | for (i = 0; g_driver[i].name != NULL; i++) { |
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70 | printf(" %-7s %c%c%c - %s (devices: %s)\n", g_driver[i].name, |
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71 | g_driver[i].flags & DRV_FLAG_FHSEC ? 's' : ' ', |
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72 | g_driver[i].open != NULL || (g_driver[i].open == NULL && g_driver[i].vio_init == NULL) ? 'S' : ' ', |
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73 | g_driver[i].vio_init != NULL || (g_driver[i].open == NULL && g_driver[i].vio_init == NULL) ? 'V' : ' ', |
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74 | g_driver[i].desc, g_driver[i].devices); |
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75 | } |
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76 | } |
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77 | |
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78 | int driver_open (DRIVER_USERDATA_T * inst, int * driver_id, char * driver, char * device, struct roar_audio_info * info) { |
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79 | int i; |
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80 | |
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81 | if ( driver == NULL ) |
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82 | driver = ROAR_DRIVER_DEFAULT; |
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83 | |
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84 | for (i = 0; g_driver[i].name != NULL; i++) { |
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85 | if ( strcmp(g_driver[i].name, driver) == 0 ) { |
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86 | ROAR_DBG("driver_open(*): found driver: id = %i", i); |
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87 | |
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88 | *driver_id = i; |
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89 | |
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90 | if ( g_driver[i].vio_init != NULL ) { |
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91 | if ( (*inst = malloc(sizeof(struct roar_vio_calls))) == NULL ) |
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92 | return -1; |
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93 | |
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94 | memset(*inst, 0, sizeof(struct roar_vio_calls)); |
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95 | |
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96 | if ( (i = g_driver[i].vio_init(*inst, device, info, -1)) == -1 ) { |
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97 | free(*inst); |
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98 | return -1; |
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99 | } |
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100 | return i; |
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101 | } |
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102 | |
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103 | if ( g_driver[i].open ) { |
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104 | ROAR_WARN("driver_open(*): driver(%s) uses old non-vio interface!", driver); |
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105 | return g_driver[i].open(inst, device, info); |
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106 | } |
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107 | |
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108 | return 0; |
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109 | } |
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110 | } |
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111 | |
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112 | return -1; |
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113 | } |
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114 | |
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115 | int driver_openvio(struct roar_vio_calls * calls, |
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116 | int * driver_id, char * driver /* NOTE: this is not part of struct roar_driver's def! */, |
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117 | char * device, struct roar_audio_info * info, int fh) { |
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118 | int i; |
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119 | |
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120 | if ( driver == NULL ) |
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121 | driver = ROAR_DRIVER_DEFAULT; |
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122 | |
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123 | ROAR_DBG("driver_openvio(*): searching for driver '%s'...", driver); |
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124 | |
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125 | for (i = 0; g_driver[i].name != NULL; i++) { |
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126 | if ( strcmp(g_driver[i].name, driver) == 0 ) { |
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127 | ROAR_DBG("driver_open(*): found driver: id = %i", i); |
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128 | |
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129 | *driver_id = i; |
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130 | |
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131 | ROAR_DBG("driver_openvio(*): driver found: %s -> %i", driver, i); |
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132 | |
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133 | if ( g_driver[i].vio_init == NULL ) { |
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134 | if ( g_driver[i].open == NULL ) { // this is the null driver |
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135 | memset(calls, 0, sizeof(struct roar_vio_calls)); |
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136 | calls->read = roar_vio_null_rw; |
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137 | calls->write = roar_vio_null_rw; |
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138 | return 0; |
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139 | } |
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140 | |
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141 | ROAR_WARN("driver_open(*): driver(%s) uses old non-vio interface!", driver); |
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142 | ROAR_ERR("driver_openvio(calls=%p, driver_id={%i}, driver='%s', device='%s', info=%p, fh=%i): not a VIO driver!", |
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143 | calls, i, driver, device, info, fh); |
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144 | return -1; |
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145 | } |
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146 | |
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147 | ROAR_DBG("driver_openvio(*): Opening VIO driver %s(%i)...", driver, i); |
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148 | return g_driver[i].vio_init(calls, device, info, fh); |
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149 | } |
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150 | } |
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151 | return -1; |
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152 | } |
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153 | |
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154 | int driver_close(DRIVER_USERDATA_T inst, int driver) { |
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155 | int ret = 0; |
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156 | ROAR_DBG("driver_close(inst=%p, driver=%i) = ?", inst, driver); |
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157 | |
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158 | if ( driver == -1 ) |
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159 | return -1; |
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160 | |
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161 | if ( g_driver[driver].close ) |
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162 | ret = g_driver[driver].close(inst); |
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163 | |
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164 | if ( g_driver[driver].vio_init != NULL ) |
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165 | free(inst); |
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166 | |
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167 | return ret; |
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168 | } |
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169 | |
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170 | int driver_closevio(struct roar_vio_calls * calls, int driver) { |
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171 | ROAR_DBG("driver_closevio(calls=%p, driver=%i) = ?", calls, driver); |
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172 | |
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173 | if ( driver == -1 ) |
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174 | return -1; |
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175 | |
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176 | if ( g_driver[driver].close ) |
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177 | return g_driver[driver].close((DRIVER_USERDATA_T)calls); |
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178 | |
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179 | if ( calls->close != NULL ) |
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180 | roar_vio_close(calls); |
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181 | |
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182 | return 0; |
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183 | } |
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184 | |
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185 | int driver_pause(DRIVER_USERDATA_T inst, int driver, int newstate) { |
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186 | if ( driver == -1 ) |
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187 | return -1; |
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188 | |
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189 | if ( g_driver[driver].pause ) |
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190 | return g_driver[driver].pause(inst, newstate); |
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191 | |
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192 | return -1; |
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193 | } |
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194 | |
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195 | int driver_write(DRIVER_USERDATA_T inst, int driver, char * buf, int len) { |
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196 | if ( driver == -1 ) |
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197 | return -1; |
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198 | |
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199 | if ( g_driver[driver].vio_init != NULL ) |
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200 | return roar_vio_write((struct roar_vio_calls *) inst, buf, len); |
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201 | |
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202 | if ( g_driver[driver].write ) |
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203 | return g_driver[driver].write(inst, buf, len); |
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204 | |
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205 | return 0; |
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206 | } |
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207 | |
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208 | int driver_read (DRIVER_USERDATA_T inst, int driver, char * buf, int len) { |
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209 | if ( driver == -1 ) |
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210 | return -1; |
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211 | |
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212 | if ( g_driver[driver].vio_init != NULL ) |
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213 | return roar_vio_read((struct roar_vio_calls *) inst, buf, len); |
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214 | |
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215 | if ( g_driver[driver].read ) |
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216 | return g_driver[driver].read(inst, buf, len); |
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217 | |
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218 | return 0; |
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219 | } |
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220 | |
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221 | int driver_flush(DRIVER_USERDATA_T inst, int driver) { |
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222 | if ( driver == -1 ) |
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223 | return -1; |
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224 | |
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225 | if ( g_driver[driver].flush ) |
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226 | return g_driver[driver].flush(inst); |
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227 | |
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228 | return 0; |
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229 | } |
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230 | |
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231 | int driver_set_volume(int stream, struct roar_mixer_settings * mixer) { |
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232 | struct roar_stream_server * ss; |
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233 | |
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234 | if ( (ss = g_streams[stream]) == NULL ) |
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235 | return -1; |
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236 | |
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237 | if ( !streams_get_flag(stream, ROAR_FLAG_HWMIXER) ) |
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238 | return 0; |
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239 | |
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240 | if ( ss->driver_id == -1 ) |
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241 | return -1; |
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242 | |
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243 | return roar_vio_ctl(&(ss->vio), ROAR_VIO_CTL_SET_VOLUME, (void*)mixer); |
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244 | } |
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245 | |
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246 | //ll |
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