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 - 2009-2013 |
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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 | #include "autodetected.h" |
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29 | |
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30 | #ifdef ROAR_HAVE_AD_ESDFW |
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31 | #include "driver_esdfw.h" |
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32 | #endif |
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33 | |
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34 | static int roar_cdriver_null(struct roar_vio_calls * calls, const char * name, const char * dev, struct roar_audio_info * info, int dir, struct roar_keyval * para, ssize_t paralen) { |
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35 | ROAR_DBG("roar_cdriver_null(calls=%p, name='%s', dev='%s', info=%p{...}, dir=%i(?)) = ?", calls, name, dev, info, dir); |
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36 | |
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37 | (void)name, (void)dev, (void)info, (void)dir, (void)para, (void)paralen; |
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38 | |
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39 | memset(calls, 0, sizeof(struct roar_vio_calls)); |
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40 | calls->flags = ROAR_VIO_FLAGS_NONE; |
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41 | calls->refc = 1; |
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42 | calls->read = roar_vio_null_rw; |
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43 | calls->write = roar_vio_null_rw; |
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44 | |
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45 | ROAR_DBG("roar_cdriver_null(calls=%p, name='%s', dev='%s', info=%p{...}, dir=%i(?)) = 0", calls, name, dev, info, dir); |
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46 | return 0; |
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47 | } |
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48 | |
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49 | struct { |
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50 | const char * name; |
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51 | int (*open)(struct roar_vio_calls * calls, const char * name, const char * dev, struct roar_audio_info * info, int dir); |
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52 | int (*open2)(struct roar_vio_calls * calls, const char * name, const char * dev, struct roar_audio_info * info, int dir, struct roar_keyval * para, ssize_t paralen); |
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53 | } _g_roar_cdriver[] = { |
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54 | {"null", NULL, roar_cdriver_null}, |
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55 | {"roar", roar_cdriver_roar, NULL}, |
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56 | #if defined(ROAR_HAVE_OSS_BSD) || defined(ROAR_HAVE_OSS) |
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57 | {"oss", roar_cdriver_oss, NULL}, |
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58 | #endif |
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59 | #ifdef ROAR_HAVE_AD_ESDFW |
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60 | #include "driver_esdfw.c" |
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61 | #endif |
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62 | {NULL, NULL, NULL} |
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63 | }; |
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64 | |
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65 | |
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66 | static int roar_cdriver_open_default(struct roar_vio_calls * calls, const char * dev, struct roar_audio_info * info, int dir, struct roar_keyval * para, ssize_t paralen) { |
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67 | const char * names[] = { |
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68 | // native APIs: |
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69 | "oss", |
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70 | // Virtual APIs: |
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71 | "roar", |
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72 | // Dummys: |
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73 | "null" |
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74 | }; |
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75 | size_t i; |
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76 | int ret; |
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77 | |
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78 | if ( dev != NULL ) { |
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79 | ROAR_WARN("roar_cdriver_open_default(calls=%p, dev='%s', info=%p, dir=%i): Try to open given device without driver name is a bad thing to do. This is normaly a Application error.", calls, dev, info, dir); |
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80 | } |
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81 | |
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82 | for (i = 0; i < (sizeof(names)/sizeof(*names)); i++) { |
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83 | ret = roar_cdriver_open2(calls, names[i], dev, info, dir, para, paralen); |
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84 | if ( ret != -1 ) |
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85 | return ret; |
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86 | } |
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87 | |
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88 | // roar_error is still set to the error of the last tested driver. |
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89 | return -1; |
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90 | } |
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91 | |
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92 | int roar_cdriver_open2(struct roar_vio_calls * calls, const char * name, const char * dev, struct roar_audio_info * info, int dir, struct roar_keyval * para, ssize_t paralen) { |
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93 | int i; |
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94 | char *delm; |
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95 | |
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96 | if ( name == NULL ) |
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97 | return roar_cdriver_open_default(calls, dev, info, dir, para, paralen); |
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98 | |
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99 | for (i = 0; _g_roar_cdriver[i].name != NULL; i++) { |
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100 | ROAR_DBG("roar_cdriver_open(*): _g_roar_cdriver[i].name='%s' <cmp> name='%s'", _g_roar_cdriver[i].name, name); |
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101 | |
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102 | if ( !strcmp(_g_roar_cdriver[i].name, name) ) { |
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103 | if ( _g_roar_cdriver[i].open2 != NULL ) |
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104 | return _g_roar_cdriver[i].open2(calls, name, dev, info, dir, para, paralen); |
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105 | if ( _g_roar_cdriver[i].open != NULL ) |
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106 | return _g_roar_cdriver[i].open(calls, name, dev, info, dir); |
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107 | } |
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108 | |
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109 | if ( (delm = strstr(_g_roar_cdriver[i].name, ":")) != NULL ) { |
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110 | ROAR_DBG("roar_cdriver_open(*): delm+1='%s' <cmp> name='%s'", delm+1, name); |
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111 | if ( !strcmp(delm+1, name) ) { |
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112 | if ( _g_roar_cdriver[i].open2 != NULL ) |
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113 | return _g_roar_cdriver[i].open2(calls, name, dev, info, dir, para, paralen); |
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114 | if ( _g_roar_cdriver[i].open != NULL ) |
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115 | return _g_roar_cdriver[i].open(calls, name, dev, info, dir); |
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116 | } |
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117 | } |
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118 | |
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119 | } |
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120 | |
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121 | roar_err_set(ROAR_ERROR_NOENT); |
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122 | return -1; |
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123 | } |
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124 | |
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125 | ssize_t roar_cdriver_list (const char ** list, size_t len, size_t offset) { |
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126 | size_t i; |
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127 | size_t idx = 0; |
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128 | |
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129 | if ( list == NULL ) { |
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130 | roar_err_set(ROAR_ERROR_FAULT); |
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131 | return -1; |
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132 | } |
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133 | |
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134 | if ( len == 0 ) |
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135 | return 0; |
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136 | |
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137 | if ( offset >= (sizeof(_g_roar_cdriver)/sizeof(*_g_roar_cdriver)) ) |
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138 | return 0; |
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139 | |
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140 | for (i = offset; _g_roar_cdriver[i].name != NULL; i++) { |
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141 | list[idx++] = _g_roar_cdriver[i].name; |
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142 | } |
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143 | |
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144 | return idx; |
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145 | } |
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146 | |
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147 | int roar_cdriver_open(struct roar_vio_calls * calls, const char * name, const char * dev, struct roar_audio_info * info, int dir) { |
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148 | return roar_cdriver_open2(calls, name, dev, info, dir, NULL, -1); |
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149 | } |
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150 | |
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151 | //ll |
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