1 | //libroaross.c: |
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2 | |
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3 | /* |
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4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2010 |
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5 | * |
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6 | * This file is part of libroar 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 | * libroar 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 | * NOTE for everyone want's to change something and send patches: |
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24 | * read README and HACKING! There a addition information on |
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25 | * the license of this document you need to read before you send |
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26 | * any patches. |
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27 | * |
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28 | * NOTE for uses of non-GPL (LGPL,...) software using libesd, libartsc |
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29 | * or libpulse*: |
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30 | * The libs libroaresd, libroararts and libroarpulse link this lib |
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31 | * and are therefore GPL. Because of this it may be illigal to use |
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32 | * them with any software that uses libesd, libartsc or libpulse*. |
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33 | */ |
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34 | |
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35 | #include "roaraudio.h" |
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36 | |
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37 | #if defined(ROAR_HAVE_OSS_BSD) || defined(ROAR_HAVE_OSS) |
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38 | #if defined(__OpenBSD__) || defined(__NetBSD__) |
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39 | #include <soundcard.h> |
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40 | #else |
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41 | #include <sys/soundcard.h> |
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42 | #endif |
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43 | #include <sys/ioctl.h> |
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44 | |
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45 | #ifdef ROAR_HAVE_H_SYS_TYPES |
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46 | #include <sys/types.h> |
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47 | #endif |
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48 | |
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49 | #ifdef ROAR_HAVE_H_FCNTL |
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50 | #include <fcntl.h> |
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51 | #endif |
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52 | |
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53 | #ifdef ROAR_HAVE_H_UNISTD |
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54 | #include <unistd.h> |
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55 | #endif |
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56 | |
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57 | #include <sys/stat.h> |
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58 | #include <dlfcn.h> |
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59 | |
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60 | #if defined(RTLD_NEXT) |
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61 | #define REAL_LIBC RTLD_NEXT |
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62 | #else |
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63 | #define REAL_LIBC ((void *) -1L) |
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64 | #endif |
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65 | |
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66 | #define OSS_VOLUME_SCALE 100 |
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67 | |
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68 | #define _MAX_POINTER 8 |
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69 | |
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70 | // handle type: |
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71 | #define HT_NONE 0 |
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72 | #define HT_STREAM 1 |
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73 | #define HT_MIXER 2 |
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74 | |
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75 | struct session { |
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76 | int refc; |
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77 | struct roar_connection con; |
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78 | }; |
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79 | |
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80 | static struct session _session = {.refc = 0}; |
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81 | |
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82 | struct handle { |
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83 | int refc; // refrence counter |
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84 | struct session * session; |
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85 | int type; |
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86 | struct roar_stream stream; |
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87 | struct roar_vio_calls stream_vio; |
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88 | int stream_dir; |
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89 | int stream_opened; |
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90 | }; |
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91 | |
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92 | static struct { |
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93 | int (*open)(const char *pathname, int flags, mode_t mode); |
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94 | int (*close)(int fd); |
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95 | ssize_t (*write)(int fd, const void *buf, size_t count); |
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96 | ssize_t (*read)(int fd, void *buf, size_t count); |
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97 | int (*ioctl)(int d, int request, ...); |
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98 | } _os; |
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99 | |
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100 | static struct { |
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101 | struct { |
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102 | int volume; |
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103 | int pcm; |
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104 | int line; |
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105 | int line1; |
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106 | int line2; |
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107 | int line3; |
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108 | int digital1; |
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109 | int digital2; |
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110 | int digital3; |
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111 | } sid; |
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112 | } _mix_settings = { |
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113 | .sid = { |
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114 | .volume = -1, |
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115 | .pcm = -1, |
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116 | .line = 0, |
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117 | .line1 = 1, |
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118 | .line2 = 2, |
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119 | .line3 = 3, |
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120 | .digital1 = 1, |
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121 | .digital2 = 2, |
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122 | .digital3 = 3 |
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123 | } |
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124 | }; |
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125 | |
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126 | static struct pointer { |
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127 | int fh; |
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128 | struct handle * handle; |
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129 | } _ptr[_MAX_POINTER]; |
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130 | |
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131 | static void _init_os (void) { |
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132 | memset(&_os, 0, sizeof(_os)); |
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133 | |
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134 | _os.open = dlsym(REAL_LIBC, "open"); |
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135 | _os.close = dlsym(REAL_LIBC, "close"); |
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136 | _os.write = dlsym(REAL_LIBC, "write"); |
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137 | _os.read = dlsym(REAL_LIBC, "read"); |
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138 | _os.ioctl = dlsym(REAL_LIBC, "ioctl"); |
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139 | } |
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140 | |
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141 | static void _init_ptr (void) { |
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142 | int i; |
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143 | |
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144 | for (i = 0; i < _MAX_POINTER; i++) { |
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145 | _ptr[i].fh = -1; |
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146 | } |
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147 | } |
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148 | |
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149 | static void _init (void) { |
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150 | static int inited = 0; |
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151 | |
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152 | if ( !inited ) { |
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153 | _init_os(); |
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154 | _init_ptr(); |
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155 | inited++; |
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156 | } |
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157 | } |
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158 | |
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159 | static int _open_dummy (void) { |
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160 | int p[2]; |
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161 | |
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162 | if ( pipe(p) == -1 ) |
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163 | return -1; |
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164 | |
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165 | close(p[1]); |
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166 | |
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167 | return p[0]; |
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168 | } |
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169 | |
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170 | static struct session * _open_session (char * server, char * name) { |
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171 | if ( _session.refc == 0 ) { |
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172 | |
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173 | if ( name == NULL ) |
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174 | name = "libroaross client"; |
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175 | |
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176 | if ( roar_simple_connect(&(_session.con), server, name) == -1 ) |
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177 | return NULL; |
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178 | } |
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179 | |
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180 | _session.refc++; |
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181 | return &_session; |
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182 | } |
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183 | |
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184 | static void _close_session(struct session * session) { |
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185 | if ( session == NULL ) |
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186 | return; |
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187 | |
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188 | session->refc--; |
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189 | |
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190 | ROAR_DBG("_close_session(session=%p): session->refc=%i", session, session->refc); |
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191 | |
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192 | if ( session->refc == 0 ) { |
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193 | roar_disconnect(&(session->con)); |
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194 | } |
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195 | } |
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196 | |
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197 | static struct handle * _open_handle(struct session * session) { |
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198 | struct handle * handle; |
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199 | |
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200 | if ( (handle = roar_mm_malloc(sizeof(struct handle))) == NULL ) |
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201 | return NULL; |
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202 | |
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203 | memset(handle, 0, sizeof(struct handle)); |
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204 | |
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205 | handle->refc = 1; |
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206 | handle->session = session; |
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207 | session->refc++; // TODO: better warp this |
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208 | handle->type = HT_NONE; |
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209 | handle->stream_dir = ROAR_DIR_PLAY; |
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210 | roar_stream_new(&(handle->stream), ROAR_RATE_DEFAULT, ROAR_CHANNELS_DEFAULT, ROAR_BITS_DEFAULT, ROAR_CODEC_DEFAULT); |
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211 | |
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212 | return handle; |
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213 | } |
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214 | |
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215 | static void _close_handle(struct handle * handle) { |
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216 | if (handle == NULL) |
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217 | return; |
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218 | |
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219 | handle->refc--; |
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220 | |
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221 | ROAR_DBG("_close_handle(handle=%p): handle->refc=%i", handle, handle->refc); |
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222 | |
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223 | if ( handle->refc == 0 ) { |
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224 | if ( handle->stream_opened ) |
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225 | roar_vio_close(&(handle->stream_vio)); |
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226 | |
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227 | handle->session->refc--; |
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228 | |
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229 | _close_session(handle->session); |
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230 | |
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231 | roar_mm_free(handle); |
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232 | } |
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233 | } |
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234 | |
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235 | static struct pointer * _get_pointer_by_fh (int fh) { |
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236 | int i; |
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237 | |
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238 | for (i = 0; i < _MAX_POINTER; i++) { |
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239 | if ( _ptr[i].fh == fh ) |
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240 | return &(_ptr[i]); |
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241 | } |
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242 | |
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243 | return NULL; |
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244 | } |
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245 | |
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246 | static struct pointer * _open_pointer(struct handle * handle) { |
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247 | struct pointer * ret = _get_pointer_by_fh(-1); |
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248 | |
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249 | if ( ret == NULL ) |
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250 | return NULL; |
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251 | |
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252 | if ( (ret->fh = _open_dummy()) == -1 ) |
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253 | return NULL; |
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254 | |
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255 | ret->handle = handle; |
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256 | |
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257 | return ret; |
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258 | } |
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259 | |
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260 | static void _close_pointer(struct pointer * pointer) { |
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261 | if ( pointer == NULL ) |
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262 | return; |
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263 | |
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264 | _os.close(pointer->fh); |
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265 | |
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266 | pointer->fh = -1; |
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267 | |
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268 | _close_handle(pointer->handle); |
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269 | } |
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270 | |
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271 | // ------------------------------------- |
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272 | // central open function: |
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273 | // ------------------------------------- |
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274 | |
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275 | static int _open_file (const char *pathname, int flags) { |
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276 | struct session * session; |
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277 | struct handle * handle; |
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278 | struct pointer * pointer; |
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279 | struct { |
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280 | char * prefix; |
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281 | int type; |
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282 | } * ptr = NULL, p[] = { |
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283 | {"/dev/dsp", HT_STREAM}, |
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284 | {"/dev/mixer", HT_MIXER}, |
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285 | {NULL, HT_NONE}, |
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286 | }; |
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287 | int i; |
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288 | |
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289 | for (i = 0; p[i].prefix != NULL; i++) { |
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290 | if ( !strcmp(pathname, p[i].prefix) ) { |
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291 | ptr = &(p[i]); |
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292 | } |
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293 | } |
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294 | |
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295 | if ( ptr == NULL ) |
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296 | return -2; |
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297 | |
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298 | if ( (session = _open_session(NULL, NULL)) == NULL ) { |
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299 | return -1; |
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300 | } |
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301 | |
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302 | if ( (handle = _open_handle(session)) == NULL ) { |
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303 | _close_session(session); |
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304 | return -1; |
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305 | } |
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306 | |
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307 | handle->type = ptr->type; |
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308 | |
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309 | switch (flags & (O_RDONLY|O_WRONLY|O_RDWR)) { |
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310 | case O_RDONLY: |
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311 | handle->stream_dir = ROAR_DIR_MONITOR; |
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312 | break; |
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313 | case O_WRONLY: |
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314 | handle->stream_dir = ROAR_DIR_PLAY; |
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315 | break; |
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316 | case O_RDWR: |
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317 | handle->stream_dir = ROAR_DIR_BIDIR; |
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318 | break; |
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319 | } |
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320 | |
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321 | if ( (pointer = _open_pointer(handle)) == NULL ) { |
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322 | _close_handle(handle); |
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323 | return -1; |
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324 | } |
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325 | |
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326 | return pointer->fh; |
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327 | } |
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328 | |
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329 | // ------------------------------------- |
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330 | // open function for streams: |
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331 | // ------------------------------------- |
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332 | |
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333 | static int _open_stream (struct handle * handle) { |
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334 | // FIXME: this should be re-written much more cleanly: |
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335 | |
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336 | if ( handle == NULL ) |
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337 | return -1; |
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338 | |
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339 | if ( roar_vio_simple_new_stream_obj(&(handle->stream_vio), |
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340 | &(handle->session->con), &(handle->stream), |
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341 | handle->stream.info.rate, |
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342 | handle->stream.info.channels, |
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343 | handle->stream.info.bits, |
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344 | handle->stream.info.codec, |
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345 | handle->stream_dir |
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346 | ) == -1 ) |
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347 | return -1; |
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348 | |
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349 | handle->stream_opened++; |
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350 | |
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351 | _mix_settings.sid.pcm = roar_stream_get_id(&(handle->stream)); |
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352 | |
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353 | return 0; |
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354 | } |
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355 | |
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356 | // ------------------------------------- |
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357 | // function to parse format: |
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358 | // ------------------------------------- |
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359 | |
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360 | static int _ioctl_stream_format (struct handle * handle, int format) { |
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361 | struct roar_audio_info * info = &(handle->stream.info); |
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362 | |
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363 | switch (format) { |
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364 | case AFMT_S8: |
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365 | info->bits = 8; |
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366 | info->codec = ROAR_CODEC_PCM_S_LE; |
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367 | break; |
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368 | case AFMT_U8: |
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369 | info->bits = 8; |
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370 | info->codec = ROAR_CODEC_PCM_U_LE; |
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371 | break; |
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372 | case AFMT_S16_BE: |
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373 | info->bits = 16; |
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374 | info->codec = ROAR_CODEC_PCM_S_BE; |
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375 | break; |
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376 | case AFMT_S16_LE: |
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377 | info->bits = 16; |
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378 | info->codec = ROAR_CODEC_PCM_S_LE; |
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379 | break; |
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380 | case AFMT_U16_BE: |
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381 | info->bits = 16; |
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382 | info->codec = ROAR_CODEC_PCM_U_BE; |
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383 | break; |
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384 | case AFMT_U16_LE: |
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385 | info->bits = 16; |
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386 | info->codec = ROAR_CODEC_PCM_U_LE; |
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387 | break; |
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388 | #ifdef AFMT_S32_BE |
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389 | case AFMT_S32_BE: |
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390 | info->bits = 32; |
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391 | info->codec = ROAR_CODEC_PCM_S_BE; |
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392 | break; |
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393 | #endif |
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394 | #ifdef AFMT_S32_LE |
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395 | case AFMT_S32_LE: |
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396 | info->bits = 32; |
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397 | info->codec = ROAR_CODEC_PCM_S_LE; |
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398 | break; |
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399 | #endif |
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400 | case AFMT_A_LAW: |
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401 | info->bits = 8; |
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402 | info->codec = ROAR_CODEC_ALAW; |
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403 | break; |
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404 | case AFMT_MU_LAW: |
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405 | info->bits = 8; |
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406 | info->codec = ROAR_CODEC_MULAW; |
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407 | break; |
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408 | #ifdef AFMT_VORBIS |
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409 | case AFMT_VORBIS: |
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410 | info->codec = ROAR_CODEC_OGG_VORBIS; |
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411 | break; |
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412 | #endif |
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413 | default: |
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414 | errno = ENOSYS; |
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415 | return -1; |
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416 | break; |
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417 | } |
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418 | |
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419 | return 0; |
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420 | } |
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421 | |
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422 | static inline int _ioctl_stream_format_list (void) { |
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423 | int format = 0; |
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424 | |
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425 | format |= AFMT_S8; |
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426 | format |= AFMT_U8; |
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427 | |
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428 | format |= AFMT_S16_BE; |
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429 | format |= AFMT_S16_LE; |
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430 | |
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431 | format |= AFMT_U16_BE; |
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432 | format |= AFMT_U16_LE; |
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433 | |
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434 | #ifdef AFMT_S32_BE |
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435 | format |= AFMT_S32_BE; |
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436 | #endif |
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437 | #ifdef AFMT_S32_LE |
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438 | format |= AFMT_S32_LE; |
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439 | #endif |
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440 | |
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441 | format |= AFMT_A_LAW; |
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442 | format |= AFMT_MU_LAW; |
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443 | |
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444 | #ifdef AFMT_VORBIS |
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445 | format |= AFMT_VORBIS; |
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446 | #endif |
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447 | |
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448 | return format; |
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449 | } |
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450 | |
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451 | // ------------------------------------- |
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452 | // mixer ioctls: |
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453 | // ------------------------------------- |
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454 | |
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455 | static int _ioctl_mixer (struct handle * handle, long unsigned int req, int * ip) { |
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456 | int channels; |
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457 | struct roar_mixer_settings mixer; |
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458 | char * name = NULL; |
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459 | int o_w = 0; |
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460 | int o_sid = -1; |
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461 | |
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462 | switch (req) { |
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463 | #if 0 |
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464 | case SNDCTL_MIX_DESCRIPTION: name = "SNDCTL_MIX_DESCRIPTION"; break; |
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465 | case SNDCTL_MIX_ENUMINFO: name = "SNDCTL_MIX_ENUMINFO"; break; |
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466 | case SNDCTL_MIX_EXTINFO: name = "SNDCTL_MIX_EXTINFO"; break; |
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467 | case SNDCTL_MIX_NREXT: name = "SNDCTL_MIX_NREXT"; break; |
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468 | case SNDCTL_MIX_NRMIX: name = "SNDCTL_MIX_NRMIX"; break; |
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469 | case SNDCTL_MIX_READ: name = "SNDCTL_MIX_READ"; break; |
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470 | case SNDCTL_MIX_WRITE: name = "SNDCTL_MIX_WRITE"; break; |
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471 | #endif |
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472 | case SOUND_MIXER_INFO: name = "SOUND_MIXER_INFO"; break; |
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473 | case SOUND_OLD_MIXER_INFO: name = "SOUND_OLD_MIXER_INFO"; break; |
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474 | case SOUND_MIXER_ACCESS: name = "SOUND_MIXER_ACCESS"; break; |
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475 | case SOUND_MIXER_AGC: name = "SOUND_MIXER_AGC"; break; |
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476 | case SOUND_MIXER_3DSE: name = "SOUND_MIXER_3DSE"; break; |
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477 | case SOUND_MIXER_PRIVATE1: name = "SOUND_MIXER_PRIVATE1"; break; |
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478 | case SOUND_MIXER_PRIVATE2: name = "SOUND_MIXER_PRIVATE2"; break; |
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479 | case SOUND_MIXER_PRIVATE3: name = "SOUND_MIXER_PRIVATE3"; break; |
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480 | case SOUND_MIXER_PRIVATE4: name = "SOUND_MIXER_PRIVATE4"; break; |
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481 | case SOUND_MIXER_PRIVATE5: name = "SOUND_MIXER_PRIVATE5"; break; |
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482 | case OSS_GETVERSION: name = "OSS_GETVERSION"; break; |
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483 | case SOUND_MIXER_READ_STEREODEVS: name = "SOUND_MIXER_READ_STEREODEVS"; break; |
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484 | case SOUND_MIXER_READ_CAPS: name = "SOUND_MIXER_READ_CAPS"; break; |
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485 | /* |
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486 | case : name = ""; break; |
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487 | */ |
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488 | } |
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489 | if ( name != NULL ) { |
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490 | ROAR_DBG("_ioctl_mixer(handle=%p, req=%lu, ip=%p): unspported mixer command %s", handle, req, ip, name); |
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491 | ROAR_DBG("_ioctl_mixer(handle=%p, req=%lu, ip=%p) = -1 // errno = ENOSYS", handle, req, ip); |
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492 | errno = ENOSYS; |
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493 | return -1; |
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494 | } |
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495 | |
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496 | switch (req) { |
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497 | case SOUND_MIXER_READ_VOLUME: o_w = 0; o_sid = _mix_settings.sid.volume; break; |
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498 | case SOUND_MIXER_READ_PCM: o_w = 0; o_sid = _mix_settings.sid.pcm; break; |
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499 | case SOUND_MIXER_READ_LINE: o_w = 0; o_sid = _mix_settings.sid.line; break; |
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500 | case SOUND_MIXER_READ_LINE1: o_w = 0; o_sid = _mix_settings.sid.line1; break; |
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501 | case SOUND_MIXER_READ_LINE2: o_w = 0; o_sid = _mix_settings.sid.line2; break; |
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502 | case SOUND_MIXER_READ_LINE3: o_w = 0; o_sid = _mix_settings.sid.line3; break; |
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503 | #if 0 |
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504 | case SOUND_MIXER_READ_DIGITAL1: o_w = 0; o_sid = _mix_settings.sid.digital1; break; |
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505 | case SOUND_MIXER_READ_DIGITAL2: o_w = 0; o_sid = _mix_settings.sid.digital2; break; |
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506 | case SOUND_MIXER_READ_DIGITAL3: o_w = 0; o_sid = _mix_settings.sid.digital3; break; |
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507 | #endif |
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508 | case SOUND_MIXER_WRITE_VOLUME: o_w = 1; o_sid = _mix_settings.sid.volume; break; |
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509 | case SOUND_MIXER_WRITE_PCM: o_w = 1; o_sid = _mix_settings.sid.pcm; break; |
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510 | case SOUND_MIXER_WRITE_LINE: o_w = 1; o_sid = _mix_settings.sid.line; break; |
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511 | case SOUND_MIXER_WRITE_LINE1: o_w = 1; o_sid = _mix_settings.sid.line1; break; |
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512 | case SOUND_MIXER_WRITE_LINE2: o_w = 1; o_sid = _mix_settings.sid.line2; break; |
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513 | case SOUND_MIXER_WRITE_LINE3: o_w = 1; o_sid = _mix_settings.sid.line3; break; |
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514 | #if 0 |
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515 | case SOUND_MIXER_WRITE_DIGITAL1: o_w = 1; o_sid = _mix_settings.sid.digital1; break; |
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516 | case SOUND_MIXER_WRITE_DIGITAL2: o_w = 1; o_sid = _mix_settings.sid.digital2; break; |
---|
517 | case SOUND_MIXER_WRITE_DIGITAL3: o_w = 1; o_sid = _mix_settings.sid.digital3; break; |
---|
518 | #endif |
---|
519 | } |
---|
520 | if ( o_sid != -1 ) { |
---|
521 | // set/get volume |
---|
522 | if ( o_w ) { |
---|
523 | mixer.scale = 65535; |
---|
524 | mixer.mixer[0] = ( *ip & 0xFF)*65535/OSS_VOLUME_SCALE; |
---|
525 | mixer.mixer[1] = ((*ip >> 8) & 0xFF)*65535/OSS_VOLUME_SCALE; |
---|
526 | if ( roar_set_vol(&(handle->session->con), o_sid, &mixer, 2) == -1 ) { |
---|
527 | errno = ENOSYS; |
---|
528 | return -1; |
---|
529 | } |
---|
530 | return 0; |
---|
531 | } else { |
---|
532 | if ( roar_get_vol(&(handle->session->con), o_sid, &mixer, &channels) == -1 ) { |
---|
533 | errno = ENOSYS; |
---|
534 | return -1; |
---|
535 | } |
---|
536 | *ip = ((OSS_VOLUME_SCALE*mixer.mixer[0])/mixer.scale) | (((OSS_VOLUME_SCALE*mixer.mixer[0])/mixer.scale)<<8); |
---|
537 | return 0; |
---|
538 | } |
---|
539 | } |
---|
540 | |
---|
541 | switch (req) { |
---|
542 | case SOUND_MIXER_READ_DEVMASK: |
---|
543 | *ip = 0; |
---|
544 | |
---|
545 | if ( _mix_settings.sid.volume != -1 ) |
---|
546 | *ip |= SOUND_MASK_VOLUME; |
---|
547 | if ( _mix_settings.sid.pcm != -1 ) |
---|
548 | *ip |= SOUND_MASK_PCM; |
---|
549 | if ( _mix_settings.sid.line != -1 ) |
---|
550 | *ip |= SOUND_MASK_LINE; |
---|
551 | if ( _mix_settings.sid.line1 != -1 ) |
---|
552 | *ip |= SOUND_MASK_LINE1; |
---|
553 | if ( _mix_settings.sid.line2 != -1 ) |
---|
554 | *ip |= SOUND_MASK_LINE2; |
---|
555 | if ( _mix_settings.sid.line3 != -1 ) |
---|
556 | *ip |= SOUND_MASK_LINE3; |
---|
557 | if ( _mix_settings.sid.digital1 != -1 ) |
---|
558 | *ip |= SOUND_MASK_DIGITAL1; |
---|
559 | if ( _mix_settings.sid.digital2 != -1 ) |
---|
560 | *ip |= SOUND_MASK_DIGITAL2; |
---|
561 | if ( _mix_settings.sid.digital3 != -1 ) |
---|
562 | *ip |= SOUND_MASK_DIGITAL3; |
---|
563 | |
---|
564 | return 0; |
---|
565 | break; |
---|
566 | case SOUND_MIXER_READ_RECMASK: |
---|
567 | case SOUND_MIXER_READ_RECSRC: |
---|
568 | *ip = SOUND_MASK_VOLUME; // we can currently only read from mixer |
---|
569 | return 0; |
---|
570 | break; |
---|
571 | case SOUND_MIXER_WRITE_RECSRC: |
---|
572 | if ( *ip == SOUND_MASK_VOLUME ) { |
---|
573 | return 0; |
---|
574 | } else { |
---|
575 | errno = ENOTSUP; |
---|
576 | return -1; |
---|
577 | } |
---|
578 | break; |
---|
579 | } |
---|
580 | |
---|
581 | ROAR_DBG("_ioctl_mixer(handle=%p, req=%lu, ip=%p): unknown mixer CTL", handle, req, ip); |
---|
582 | ROAR_DBG("_ioctl_mixer(handle=%p, req=%lu, ip=%p) = -1 // errno = ENOSYS", handle, req, ip); |
---|
583 | errno = ENOSYS; |
---|
584 | return -1; |
---|
585 | } |
---|
586 | |
---|
587 | // ------------------------------------- |
---|
588 | // emulated functions follow: |
---|
589 | // ------------------------------------- |
---|
590 | |
---|
591 | int open(const char *pathname, int flags, ...) { |
---|
592 | int ret; |
---|
593 | mode_t mode = 0; |
---|
594 | va_list args; |
---|
595 | |
---|
596 | _init(); |
---|
597 | |
---|
598 | ret = _open_file(pathname, flags); |
---|
599 | |
---|
600 | switch (ret) { |
---|
601 | case -2: // continue as normal, use _op.open() |
---|
602 | break; |
---|
603 | case -1: // pass error to caller |
---|
604 | return -1; |
---|
605 | break; |
---|
606 | default: // return successfully opened pointer to caller |
---|
607 | return ret; |
---|
608 | break; |
---|
609 | } |
---|
610 | |
---|
611 | if (flags & O_CREAT) { |
---|
612 | va_start(args, flags); |
---|
613 | mode = va_arg(args, mode_t); |
---|
614 | va_end(args); |
---|
615 | } |
---|
616 | |
---|
617 | return _os.open(pathname, flags, mode); |
---|
618 | } |
---|
619 | |
---|
620 | int close(int fd) { |
---|
621 | struct pointer * pointer; |
---|
622 | _init(); |
---|
623 | |
---|
624 | if ( (pointer = _get_pointer_by_fh(fd)) != NULL ) { |
---|
625 | _close_pointer(pointer); |
---|
626 | return 0; |
---|
627 | } |
---|
628 | |
---|
629 | return _os.close(fd); |
---|
630 | } |
---|
631 | |
---|
632 | ssize_t write(int fd, const void *buf, size_t count) { |
---|
633 | struct pointer * pointer; |
---|
634 | |
---|
635 | _init(); |
---|
636 | |
---|
637 | if ( (pointer = _get_pointer_by_fh(fd)) != NULL ) { |
---|
638 | if ( pointer->handle->type == HT_STREAM ) { |
---|
639 | if ( pointer->handle->stream_opened == 0 ) { |
---|
640 | if ( _open_stream(pointer->handle) == -1 ) { |
---|
641 | errno = EIO; |
---|
642 | return -1; |
---|
643 | } |
---|
644 | } |
---|
645 | return roar_vio_write(&(pointer->handle->stream_vio), (char*)buf, count); |
---|
646 | } else { |
---|
647 | errno = EINVAL; |
---|
648 | return -1; |
---|
649 | } |
---|
650 | } |
---|
651 | |
---|
652 | return _os.write(fd, buf, count); |
---|
653 | } |
---|
654 | |
---|
655 | ssize_t read(int fd, void *buf, size_t count) { |
---|
656 | struct pointer * pointer; |
---|
657 | |
---|
658 | _init(); |
---|
659 | |
---|
660 | if ( (pointer = _get_pointer_by_fh(fd)) != NULL ) { |
---|
661 | if ( pointer->handle->type == HT_STREAM ) { |
---|
662 | if ( pointer->handle->stream_opened == 0 ) { |
---|
663 | if ( _open_stream(pointer->handle) == -1 ) { |
---|
664 | errno = EIO; |
---|
665 | return -1; |
---|
666 | } |
---|
667 | } |
---|
668 | return roar_vio_read(&(pointer->handle->stream_vio), buf, count); |
---|
669 | } else { |
---|
670 | errno = EINVAL; |
---|
671 | return -1; |
---|
672 | } |
---|
673 | } |
---|
674 | |
---|
675 | return _os.read(fd, buf, count); |
---|
676 | } |
---|
677 | |
---|
678 | extern int ioctl (int __fd, unsigned long int __request, ...) { |
---|
679 | struct pointer * pointer; |
---|
680 | struct handle * handle; |
---|
681 | va_list args; |
---|
682 | void *argp; |
---|
683 | int * ip = NULL; |
---|
684 | |
---|
685 | _init(); |
---|
686 | |
---|
687 | // ROAR_DBG("ioctl(__fd=%i, __request=%lu) = ?", __fd, (long unsigned int) __request); |
---|
688 | |
---|
689 | va_start (args, __request); |
---|
690 | argp = va_arg (args, void *); |
---|
691 | va_end (args); |
---|
692 | |
---|
693 | // ROAR_DBG("ioctl(__fd=%i, __request=%lu): argp=%p", __fd, (long unsigned int) __request, argp); |
---|
694 | |
---|
695 | if ( (pointer = _get_pointer_by_fh(__fd)) != NULL ) { |
---|
696 | ip = argp; |
---|
697 | // ROAR_DBG("ioctl(__fd=%i, __request=%lu): ip=%p", __fd, (long unsigned int) __request, ip); |
---|
698 | switch ((handle = pointer->handle)->type) { |
---|
699 | case HT_STREAM: |
---|
700 | switch (__request) { |
---|
701 | case SNDCTL_DSP_RESET: |
---|
702 | case SNDCTL_DSP_POST: |
---|
703 | break; |
---|
704 | case SNDCTL_DSP_SPEED: |
---|
705 | handle->stream.info.rate = *ip; |
---|
706 | return 0; |
---|
707 | break; |
---|
708 | case SNDCTL_DSP_CHANNELS: |
---|
709 | handle->stream.info.channels = *ip; |
---|
710 | return 0; |
---|
711 | break; |
---|
712 | case SNDCTL_DSP_SETFMT: |
---|
713 | return _ioctl_stream_format(handle, *ip); |
---|
714 | break; |
---|
715 | case SNDCTL_DSP_GETFMTS: |
---|
716 | // ROAR_DBG("ioctl(__fd=%i, __request=%lu): ip=%p", __fd, (long unsigned int) __request, ip); |
---|
717 | *ip = _ioctl_stream_format_list(); |
---|
718 | return 0; |
---|
719 | break; |
---|
720 | default: |
---|
721 | ROAR_DBG("ioctl(__fd=%i, __request=%lu) = -1 // errno = ENOSYS", __fd, (long unsigned int) __request); |
---|
722 | errno = ENOSYS; |
---|
723 | return -1; |
---|
724 | } |
---|
725 | break; |
---|
726 | case HT_MIXER: |
---|
727 | return _ioctl_mixer(handle, __request, ip); |
---|
728 | break; |
---|
729 | default: |
---|
730 | ROAR_DBG("ioctl(__fd=%i, __request=%lu): unknown handle type: no ioctl()s supported", __fd, (long unsigned int) __request); |
---|
731 | ROAR_DBG("ioctl(__fd=%i, __request=%lu) = -1 // errno = ENOSYS", __fd, (long unsigned int) __request); |
---|
732 | errno = EINVAL; |
---|
733 | return -1; |
---|
734 | break; |
---|
735 | } |
---|
736 | } |
---|
737 | |
---|
738 | return _os.ioctl(__fd, __request, argp); |
---|
739 | } |
---|
740 | |
---|
741 | #endif |
---|
742 | |
---|
743 | //ll |
---|