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 | #ifndef ENOTSUP |
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67 | #define ENOTSUP ENOSYS |
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68 | #endif |
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69 | |
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70 | #if defined(ROAR_OS_NETBSD) && defined(ioctl) |
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71 | #define IOCTL_IS_ALIAS |
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72 | #endif |
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73 | |
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74 | #ifdef ROAR_OS_FREEBSD |
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75 | #define mode_t int |
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76 | #endif |
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77 | |
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78 | #ifdef ROAR_OS_NETBSD |
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79 | #define IOCTL() int _oss_ioctl __P((int fd, unsigned long com, void *argp)) |
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80 | #define map_args int __fd = fd; unsigned long int __request = com |
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81 | #else |
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82 | #define IOCTL() int ioctl (int __fd, unsigned long int __request, ...) |
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83 | #define map_args void * argp |
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84 | #define va_argp |
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85 | #endif |
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86 | |
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87 | #define OSS_VOLUME_SCALE 100 |
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88 | |
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89 | #define _MAX_POINTER 8 |
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90 | |
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91 | // handle type: |
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92 | #define HT_NONE 0 |
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93 | #define HT_STREAM 1 |
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94 | #define HT_MIXER 2 |
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95 | |
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96 | struct session { |
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97 | int refc; |
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98 | struct roar_connection con; |
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99 | }; |
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100 | |
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101 | static struct session _session = {.refc = 0}; |
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102 | |
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103 | struct handle { |
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104 | int refc; // refrence counter |
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105 | struct session * session; |
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106 | int type; |
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107 | struct roar_stream stream; |
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108 | struct roar_vio_calls stream_vio; |
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109 | int stream_dir; |
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110 | int stream_opened; |
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111 | size_t stream_buffersize; |
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112 | size_t readc, writec; |
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113 | }; |
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114 | |
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115 | static struct { |
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116 | int (*open)(const char *pathname, int flags, mode_t mode); |
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117 | int (*close)(int fd); |
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118 | ssize_t (*write)(int fd, const void *buf, size_t count); |
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119 | ssize_t (*read)(int fd, void *buf, size_t count); |
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120 | #ifndef IOCTL_IS_ALIAS |
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121 | int (*ioctl)(int d, int request, ...); |
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122 | #endif |
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123 | } _os; |
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124 | |
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125 | static struct { |
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126 | struct { |
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127 | int volume; |
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128 | int pcm; |
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129 | int line; |
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130 | int line1; |
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131 | int line2; |
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132 | int line3; |
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133 | int digital1; |
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134 | int digital2; |
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135 | int digital3; |
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136 | } sid; |
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137 | } _mix_settings = { |
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138 | .sid = { |
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139 | .volume = -1, |
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140 | .pcm = -1, |
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141 | .line = 0, |
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142 | .line1 = 1, |
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143 | .line2 = 2, |
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144 | .line3 = 3, |
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145 | .digital1 = 1, |
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146 | .digital2 = 2, |
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147 | .digital3 = 3 |
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148 | } |
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149 | }; |
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150 | |
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151 | static struct pointer { |
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152 | int fh; |
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153 | struct handle * handle; |
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154 | } _ptr[_MAX_POINTER]; |
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155 | |
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156 | static void _init_os (void) { |
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157 | memset(&_os, 0, sizeof(_os)); |
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158 | |
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159 | _os.open = dlsym(REAL_LIBC, "open"); |
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160 | _os.close = dlsym(REAL_LIBC, "close"); |
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161 | _os.write = dlsym(REAL_LIBC, "write"); |
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162 | _os.read = dlsym(REAL_LIBC, "read"); |
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163 | #ifndef IOCTL_IS_ALIAS |
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164 | _os.ioctl = dlsym(REAL_LIBC, "ioctl"); |
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165 | #endif |
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166 | } |
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167 | |
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168 | static void _init_ptr (void) { |
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169 | int i; |
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170 | |
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171 | for (i = 0; i < _MAX_POINTER; i++) { |
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172 | _ptr[i].fh = -1; |
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173 | } |
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174 | } |
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175 | |
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176 | static void _init (void) { |
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177 | static int inited = 0; |
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178 | |
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179 | if ( !inited ) { |
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180 | _init_os(); |
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181 | _init_ptr(); |
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182 | inited++; |
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183 | } |
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184 | } |
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185 | |
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186 | static void _find_volume_sid (struct session * session) { |
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187 | int i; |
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188 | int num; |
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189 | int id[ROAR_STREAMS_MAX]; |
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190 | struct roar_stream s; |
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191 | char name[1024]; |
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192 | |
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193 | ROAR_DBG("_find_volume_sid(session=%p) = ?", session); |
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194 | |
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195 | if ( (num = roar_list_streams(&(session->con), id, ROAR_STREAMS_MAX)) == -1 ) { |
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196 | return; |
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197 | } |
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198 | |
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199 | for (i = 0; i < num; i++) { |
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200 | if ( roar_get_stream(&(session->con), &s, id[i]) == -1 ) |
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201 | continue; |
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202 | |
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203 | if ( s.dir != ROAR_DIR_MIXING ) |
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204 | continue; |
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205 | |
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206 | if ( roar_stream_get_name(&(session->con), &s, name, 1024) == -1 ) |
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207 | continue; |
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208 | |
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209 | if ( !strcasecmp(name, "Waveform Mixer") ) { |
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210 | _mix_settings.sid.volume = id[i]; |
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211 | ROAR_DBG("_find_volume_sid(session=%p): found waveform mixer at sid %i", session, id[i]); |
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212 | ROAR_DBG("_find_volume_sid(session=%p) = (void)", session); |
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213 | return; |
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214 | } |
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215 | } |
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216 | } |
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217 | |
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218 | static int _open_dummy (void) { |
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219 | int p[2]; |
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220 | |
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221 | if ( pipe(p) == -1 ) |
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222 | return -1; |
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223 | |
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224 | close(p[1]); |
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225 | |
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226 | return p[0]; |
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227 | } |
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228 | |
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229 | static struct session * _open_session (char * server, char * name) { |
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230 | if ( _session.refc == 0 ) { |
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231 | |
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232 | if ( name == NULL ) |
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233 | name = "libroaross client"; |
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234 | |
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235 | if ( roar_simple_connect(&(_session.con), server, name) == -1 ) |
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236 | return NULL; |
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237 | |
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238 | _find_volume_sid(&_session); |
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239 | } |
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240 | |
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241 | _session.refc++; |
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242 | return &_session; |
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243 | } |
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244 | |
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245 | static void _close_session(struct session * session) { |
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246 | if ( session == NULL ) |
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247 | return; |
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248 | |
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249 | session->refc--; |
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250 | |
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251 | ROAR_DBG("_close_session(session=%p): session->refc=%i", session, session->refc); |
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252 | |
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253 | if ( session->refc == 0 ) { |
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254 | roar_disconnect(&(session->con)); |
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255 | } |
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256 | } |
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257 | |
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258 | static struct handle * _open_handle(struct session * session) { |
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259 | struct handle * handle; |
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260 | |
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261 | if ( (handle = roar_mm_malloc(sizeof(struct handle))) == NULL ) |
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262 | return NULL; |
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263 | |
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264 | memset(handle, 0, sizeof(struct handle)); |
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265 | |
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266 | handle->refc = 1; |
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267 | handle->session = session; |
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268 | session->refc++; // TODO: better warp this |
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269 | handle->type = HT_NONE; |
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270 | handle->stream_dir = ROAR_DIR_PLAY; |
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271 | roar_stream_new(&(handle->stream), ROAR_RATE_DEFAULT, ROAR_CHANNELS_DEFAULT, ROAR_BITS_DEFAULT, ROAR_CODEC_DEFAULT); |
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272 | |
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273 | return handle; |
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274 | } |
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275 | |
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276 | static void _close_handle(struct handle * handle) { |
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277 | if (handle == NULL) |
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278 | return; |
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279 | |
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280 | handle->refc--; |
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281 | |
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282 | ROAR_DBG("_close_handle(handle=%p): handle->refc=%i", handle, handle->refc); |
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283 | |
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284 | if ( handle->refc == 0 ) { |
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285 | if ( handle->stream_opened ) |
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286 | roar_vio_close(&(handle->stream_vio)); |
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287 | |
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288 | handle->session->refc--; |
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289 | |
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290 | _close_session(handle->session); |
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291 | |
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292 | roar_mm_free(handle); |
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293 | } |
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294 | } |
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295 | |
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296 | static struct pointer * _get_pointer_by_fh (int fh) { |
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297 | int i; |
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298 | |
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299 | for (i = 0; i < _MAX_POINTER; i++) { |
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300 | if ( _ptr[i].fh == fh ) |
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301 | return &(_ptr[i]); |
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302 | } |
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303 | |
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304 | return NULL; |
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305 | } |
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306 | |
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307 | static struct pointer * _open_pointer(struct handle * handle) { |
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308 | struct pointer * ret = _get_pointer_by_fh(-1); |
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309 | |
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310 | if ( ret == NULL ) |
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311 | return NULL; |
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312 | |
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313 | if ( (ret->fh = _open_dummy()) == -1 ) |
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314 | return NULL; |
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315 | |
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316 | ret->handle = handle; |
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317 | |
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318 | return ret; |
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319 | } |
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320 | |
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321 | static void _close_pointer(struct pointer * pointer) { |
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322 | if ( pointer == NULL ) |
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323 | return; |
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324 | |
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325 | _os.close(pointer->fh); |
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326 | |
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327 | pointer->fh = -1; |
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328 | |
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329 | _close_handle(pointer->handle); |
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330 | } |
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331 | |
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332 | // ------------------------------------- |
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333 | // central open function: |
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334 | // ------------------------------------- |
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335 | |
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336 | static int _open_file (const char *pathname, int flags) { |
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337 | struct session * session; |
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338 | struct handle * handle; |
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339 | struct pointer * pointer; |
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340 | struct { |
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341 | char * prefix; |
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342 | int type; |
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343 | } * ptr = NULL, p[] = { |
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344 | {"/dev/dsp", HT_STREAM}, |
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345 | {"/dev/audio", HT_STREAM}, |
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346 | {"/dev/mixer", HT_MIXER}, |
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347 | #ifdef ROAR_DEFAULT_OSS_DEV |
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348 | {ROAR_DEFAULT_OSS_DEV, HT_STREAM}, |
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349 | #endif |
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350 | {NULL, HT_NONE}, |
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351 | }; |
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352 | int i; |
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353 | |
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354 | for (i = 0; p[i].prefix != NULL; i++) { |
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355 | if ( !strcmp(pathname, p[i].prefix) ) { |
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356 | ptr = &(p[i]); |
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357 | } |
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358 | } |
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359 | |
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360 | if ( ptr == NULL ) |
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361 | return -2; |
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362 | |
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363 | if ( (session = _open_session(NULL, NULL)) == NULL ) { |
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364 | return -1; |
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365 | } |
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366 | |
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367 | if ( (handle = _open_handle(session)) == NULL ) { |
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368 | _close_session(session); |
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369 | return -1; |
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370 | } |
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371 | |
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372 | handle->type = ptr->type; |
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373 | |
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374 | switch (flags & (O_RDONLY|O_WRONLY|O_RDWR)) { |
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375 | case O_RDONLY: |
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376 | handle->stream_dir = ROAR_DIR_MONITOR; |
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377 | break; |
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378 | case O_WRONLY: |
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379 | handle->stream_dir = ROAR_DIR_PLAY; |
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380 | break; |
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381 | case O_RDWR: |
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382 | handle->stream_dir = ROAR_DIR_BIDIR; |
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383 | break; |
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384 | } |
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385 | |
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386 | if ( (pointer = _open_pointer(handle)) == NULL ) { |
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387 | _close_handle(handle); |
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388 | return -1; |
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389 | } |
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390 | |
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391 | return pointer->fh; |
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392 | } |
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393 | |
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394 | // ------------------------------------- |
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395 | // open function for streams: |
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396 | // ------------------------------------- |
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397 | |
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398 | static int _open_stream (struct handle * handle) { |
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399 | // FIXME: this should be re-written much more cleanly: |
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400 | |
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401 | if ( handle == NULL ) |
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402 | return -1; |
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403 | |
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404 | if ( roar_vio_simple_new_stream_obj(&(handle->stream_vio), |
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405 | &(handle->session->con), &(handle->stream), |
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406 | handle->stream.info.rate, |
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407 | handle->stream.info.channels, |
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408 | handle->stream.info.bits, |
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409 | handle->stream.info.codec, |
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410 | handle->stream_dir |
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411 | ) == -1 ) |
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412 | return -1; |
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413 | |
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414 | handle->stream_opened++; |
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415 | |
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416 | _mix_settings.sid.pcm = roar_stream_get_id(&(handle->stream)); |
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417 | |
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418 | return 0; |
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419 | } |
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420 | |
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421 | // ------------------------------------- |
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422 | // function to parse format: |
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423 | // ------------------------------------- |
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424 | |
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425 | static int _ioctl_stream_format (struct handle * handle, int format) { |
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426 | struct roar_audio_info * info = &(handle->stream.info); |
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427 | |
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428 | switch (format) { |
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429 | case AFMT_S8: |
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430 | info->bits = 8; |
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431 | info->codec = ROAR_CODEC_PCM_S_LE; |
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432 | break; |
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433 | case AFMT_U8: |
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434 | info->bits = 8; |
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435 | info->codec = ROAR_CODEC_PCM_U_LE; |
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436 | break; |
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437 | case AFMT_S16_BE: |
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438 | info->bits = 16; |
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439 | info->codec = ROAR_CODEC_PCM_S_BE; |
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440 | break; |
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441 | case AFMT_S16_LE: |
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442 | info->bits = 16; |
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443 | info->codec = ROAR_CODEC_PCM_S_LE; |
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444 | break; |
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445 | case AFMT_U16_BE: |
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446 | info->bits = 16; |
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447 | info->codec = ROAR_CODEC_PCM_U_BE; |
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448 | break; |
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449 | case AFMT_U16_LE: |
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450 | info->bits = 16; |
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451 | info->codec = ROAR_CODEC_PCM_U_LE; |
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452 | break; |
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453 | #ifdef AFMT_S32_BE |
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454 | case AFMT_S32_BE: |
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455 | info->bits = 32; |
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456 | info->codec = ROAR_CODEC_PCM_S_BE; |
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457 | break; |
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458 | #endif |
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459 | #ifdef AFMT_S32_LE |
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460 | case AFMT_S32_LE: |
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461 | info->bits = 32; |
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462 | info->codec = ROAR_CODEC_PCM_S_LE; |
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463 | break; |
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464 | #endif |
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465 | case AFMT_A_LAW: |
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466 | info->bits = 8; |
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467 | info->codec = ROAR_CODEC_ALAW; |
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468 | break; |
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469 | case AFMT_MU_LAW: |
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470 | info->bits = 8; |
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471 | info->codec = ROAR_CODEC_MULAW; |
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472 | break; |
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473 | #ifdef AFMT_VORBIS |
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474 | case AFMT_VORBIS: |
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475 | info->codec = ROAR_CODEC_OGG_VORBIS; |
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476 | break; |
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477 | #endif |
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478 | default: |
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479 | errno = ENOSYS; |
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480 | return -1; |
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481 | break; |
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482 | } |
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483 | |
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484 | return 0; |
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485 | } |
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486 | |
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487 | static inline int _ioctl_stream_format_list (void) { |
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488 | int format = 0; |
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489 | |
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490 | format |= AFMT_S8; |
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491 | format |= AFMT_U8; |
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492 | |
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493 | format |= AFMT_S16_BE; |
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494 | format |= AFMT_S16_LE; |
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495 | |
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496 | format |= AFMT_U16_BE; |
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497 | format |= AFMT_U16_LE; |
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498 | |
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499 | #ifdef AFMT_S32_BE |
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500 | format |= AFMT_S32_BE; |
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501 | #endif |
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502 | #ifdef AFMT_S32_LE |
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503 | format |= AFMT_S32_LE; |
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504 | #endif |
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505 | |
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506 | format |= AFMT_A_LAW; |
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507 | format |= AFMT_MU_LAW; |
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508 | |
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509 | #ifdef AFMT_VORBIS |
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510 | format |= AFMT_VORBIS; |
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511 | #endif |
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512 | |
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513 | return format; |
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514 | } |
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515 | |
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516 | // ------------------------------------- |
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517 | // mixer ioctls: |
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518 | // ------------------------------------- |
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519 | |
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520 | static int _ioctl_mixer (struct handle * handle, long unsigned int req, void * vp) { |
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521 | mixer_info * info; |
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522 | int channels; |
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523 | struct roar_mixer_settings mixer; |
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524 | int o_w = 0; |
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525 | int o_sid = -1; |
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526 | int * ip = vp; |
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527 | #if defined(DEBUG) && defined(DEBUG_IOCTL_NAMES) |
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528 | char * name = NULL; |
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529 | #endif |
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530 | |
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531 | #if defined(DEBUG) && defined(DEBUG_IOCTL_NAMES) |
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532 | switch (req) { |
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533 | #if 0 |
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534 | case SNDCTL_MIX_DESCRIPTION: name = "SNDCTL_MIX_DESCRIPTION"; break; |
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535 | case SNDCTL_MIX_ENUMINFO: name = "SNDCTL_MIX_ENUMINFO"; break; |
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536 | case SNDCTL_MIX_EXTINFO: name = "SNDCTL_MIX_EXTINFO"; break; |
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537 | case SNDCTL_MIX_NREXT: name = "SNDCTL_MIX_NREXT"; break; |
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538 | case SNDCTL_MIX_NRMIX: name = "SNDCTL_MIX_NRMIX"; break; |
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539 | case SNDCTL_MIX_READ: name = "SNDCTL_MIX_READ"; break; |
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540 | case SNDCTL_MIX_WRITE: name = "SNDCTL_MIX_WRITE"; break; |
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541 | #endif |
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542 | // case SOUND_MIXER_INFO: name = "SOUND_MIXER_INFO"; break; |
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543 | case SOUND_OLD_MIXER_INFO: name = "SOUND_OLD_MIXER_INFO"; break; |
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544 | case SOUND_MIXER_ACCESS: name = "SOUND_MIXER_ACCESS"; break; |
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545 | case SOUND_MIXER_AGC: name = "SOUND_MIXER_AGC"; break; |
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546 | case SOUND_MIXER_3DSE: name = "SOUND_MIXER_3DSE"; break; |
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547 | case SOUND_MIXER_GETLEVELS: name = "SOUND_MIXER_GETLEVELS"; break; |
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548 | case SOUND_MIXER_SETLEVELS: name = "SOUND_MIXER_SETLEVELS"; break; |
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549 | case SOUND_MIXER_PRIVATE1: name = "SOUND_MIXER_PRIVATE1"; break; |
---|
550 | case SOUND_MIXER_PRIVATE2: name = "SOUND_MIXER_PRIVATE2"; break; |
---|
551 | case SOUND_MIXER_PRIVATE3: name = "SOUND_MIXER_PRIVATE3"; break; |
---|
552 | case SOUND_MIXER_PRIVATE4: name = "SOUND_MIXER_PRIVATE4"; break; |
---|
553 | case SOUND_MIXER_PRIVATE5: name = "SOUND_MIXER_PRIVATE5"; break; |
---|
554 | case OSS_GETVERSION: name = "OSS_GETVERSION"; break; |
---|
555 | // case SOUND_MIXER_READ_CAPS: name = "SOUND_MIXER_READ_CAPS"; break; |
---|
556 | case SOUND_MIXER_READ_MUTE: name = "SOUND_MIXER_READ_MUTE"; break; |
---|
557 | /* |
---|
558 | case : name = ""; break; |
---|
559 | case : name = ""; break; |
---|
560 | */ |
---|
561 | } |
---|
562 | if ( name != NULL ) { |
---|
563 | ROAR_DBG("_ioctl_mixer(handle=%p, req=%lu, ip=%p): unspported mixer command %s", handle, req, ip, name); |
---|
564 | ROAR_DBG("_ioctl_mixer(handle=%p, req=%lu, ip=%p) = -1 // errno = ENOSYS", handle, req, ip); |
---|
565 | errno = ENOSYS; |
---|
566 | return -1; |
---|
567 | } |
---|
568 | #endif |
---|
569 | |
---|
570 | switch (req) { |
---|
571 | case SOUND_MIXER_READ_VOLUME: o_w = 0; o_sid = _mix_settings.sid.volume; break; |
---|
572 | case SOUND_MIXER_READ_LINE: o_w = 0; o_sid = _mix_settings.sid.line; break; |
---|
573 | case SOUND_MIXER_READ_LINE1: o_w = 0; o_sid = _mix_settings.sid.line1; break; |
---|
574 | case SOUND_MIXER_READ_LINE2: o_w = 0; o_sid = _mix_settings.sid.line2; break; |
---|
575 | case SOUND_MIXER_READ_LINE3: o_w = 0; o_sid = _mix_settings.sid.line3; break; |
---|
576 | #if 0 |
---|
577 | case SOUND_MIXER_READ_DIGITAL1: o_w = 0; o_sid = _mix_settings.sid.digital1; break; |
---|
578 | case SOUND_MIXER_READ_DIGITAL2: o_w = 0; o_sid = _mix_settings.sid.digital2; break; |
---|
579 | case SOUND_MIXER_READ_DIGITAL3: o_w = 0; o_sid = _mix_settings.sid.digital3; break; |
---|
580 | #endif |
---|
581 | case SOUND_MIXER_WRITE_VOLUME: o_w = 1; o_sid = _mix_settings.sid.volume; break; |
---|
582 | case SOUND_MIXER_WRITE_LINE: o_w = 1; o_sid = _mix_settings.sid.line; break; |
---|
583 | case SOUND_MIXER_WRITE_LINE1: o_w = 1; o_sid = _mix_settings.sid.line1; break; |
---|
584 | case SOUND_MIXER_WRITE_LINE2: o_w = 1; o_sid = _mix_settings.sid.line2; break; |
---|
585 | case SOUND_MIXER_WRITE_LINE3: o_w = 1; o_sid = _mix_settings.sid.line3; break; |
---|
586 | #if 0 |
---|
587 | case SOUND_MIXER_WRITE_DIGITAL1: o_w = 1; o_sid = _mix_settings.sid.digital1; break; |
---|
588 | case SOUND_MIXER_WRITE_DIGITAL2: o_w = 1; o_sid = _mix_settings.sid.digital2; break; |
---|
589 | case SOUND_MIXER_WRITE_DIGITAL3: o_w = 1; o_sid = _mix_settings.sid.digital3; break; |
---|
590 | #endif |
---|
591 | // we handle PCM seperatly as we want to be abled to abled to handle it on a stream (not mixer), too: |
---|
592 | case SOUND_MIXER_READ_PCM: |
---|
593 | o_w = 0; |
---|
594 | if ( handle->type == HT_STREAM ) { |
---|
595 | o_sid = roar_stream_get_id(&(handle->stream)); |
---|
596 | } else { |
---|
597 | o_sid = _mix_settings.sid.pcm; |
---|
598 | } |
---|
599 | break; |
---|
600 | case SOUND_MIXER_WRITE_PCM: |
---|
601 | o_w = 1; |
---|
602 | if ( handle->type == HT_STREAM ) { |
---|
603 | o_sid = roar_stream_get_id(&(handle->stream)); |
---|
604 | } else { |
---|
605 | o_sid = _mix_settings.sid.pcm; |
---|
606 | } |
---|
607 | break; |
---|
608 | } |
---|
609 | if ( o_sid != -1 ) { |
---|
610 | // set/get volume |
---|
611 | if ( o_w ) { |
---|
612 | mixer.scale = 65535; |
---|
613 | mixer.mixer[0] = ( *ip & 0xFF)*65535/OSS_VOLUME_SCALE; |
---|
614 | mixer.mixer[1] = ((*ip >> 8) & 0xFF)*65535/OSS_VOLUME_SCALE; |
---|
615 | if ( roar_set_vol(&(handle->session->con), o_sid, &mixer, 2) == -1 ) { |
---|
616 | errno = EIO; |
---|
617 | return -1; |
---|
618 | } |
---|
619 | return 0; |
---|
620 | } else { |
---|
621 | if ( roar_get_vol(&(handle->session->con), o_sid, &mixer, &channels) == -1 ) { |
---|
622 | errno = EIO; |
---|
623 | return -1; |
---|
624 | } |
---|
625 | *ip = ((OSS_VOLUME_SCALE*mixer.mixer[0])/mixer.scale) | (((OSS_VOLUME_SCALE*mixer.mixer[0])/mixer.scale)<<8); |
---|
626 | return 0; |
---|
627 | } |
---|
628 | } |
---|
629 | |
---|
630 | switch (req) { |
---|
631 | case SOUND_MIXER_READ_STEREODEVS: /* FIXME: check the streams for channel config */ |
---|
632 | case SOUND_MIXER_READ_DEVMASK: |
---|
633 | *ip = 0; |
---|
634 | |
---|
635 | if ( _mix_settings.sid.volume != -1 ) |
---|
636 | *ip |= SOUND_MASK_VOLUME; |
---|
637 | if ( _mix_settings.sid.pcm != -1 ) |
---|
638 | *ip |= SOUND_MASK_PCM; |
---|
639 | if ( _mix_settings.sid.line != -1 ) |
---|
640 | *ip |= SOUND_MASK_LINE; |
---|
641 | if ( _mix_settings.sid.line1 != -1 ) |
---|
642 | *ip |= SOUND_MASK_LINE1; |
---|
643 | if ( _mix_settings.sid.line2 != -1 ) |
---|
644 | *ip |= SOUND_MASK_LINE2; |
---|
645 | if ( _mix_settings.sid.line3 != -1 ) |
---|
646 | *ip |= SOUND_MASK_LINE3; |
---|
647 | if ( _mix_settings.sid.digital1 != -1 ) |
---|
648 | #if 0 |
---|
649 | *ip |= SOUND_MASK_DIGITAL1; |
---|
650 | if ( _mix_settings.sid.digital2 != -1 ) |
---|
651 | *ip |= SOUND_MASK_DIGITAL2; |
---|
652 | if ( _mix_settings.sid.digital3 != -1 ) |
---|
653 | *ip |= SOUND_MASK_DIGITAL3; |
---|
654 | #endif |
---|
655 | |
---|
656 | return 0; |
---|
657 | break; |
---|
658 | case SOUND_MIXER_READ_RECMASK: |
---|
659 | case SOUND_MIXER_READ_RECSRC: |
---|
660 | *ip = SOUND_MASK_VOLUME; // we can currently only read from mixer |
---|
661 | return 0; |
---|
662 | break; |
---|
663 | case SOUND_MIXER_WRITE_RECSRC: |
---|
664 | if ( *ip == SOUND_MASK_VOLUME ) { |
---|
665 | return 0; |
---|
666 | } else { |
---|
667 | errno = ENOTSUP; |
---|
668 | return -1; |
---|
669 | } |
---|
670 | break; |
---|
671 | case SOUND_MIXER_READ_CAPS: |
---|
672 | *ip = 0; |
---|
673 | return 0; |
---|
674 | break; |
---|
675 | case SOUND_MIXER_INFO: |
---|
676 | info = vp; |
---|
677 | memset(info, 0, sizeof(*info)); |
---|
678 | strcpy(info->id, "RoarAudio"); |
---|
679 | strcpy(info->name, "RoarAudio"); |
---|
680 | return 0; |
---|
681 | break; |
---|
682 | } |
---|
683 | |
---|
684 | ROAR_DBG("_ioctl_mixer(handle=%p, req=%lu, ip=%p): unknown mixer CTL", handle, req, ip); |
---|
685 | // _os.ioctl(-1, req, ip); |
---|
686 | ROAR_DBG("_ioctl_mixer(handle=%p, req=%lu, ip=%p) = -1 // errno = ENOSYS", handle, req, ip); |
---|
687 | errno = ENOSYS; |
---|
688 | return -1; |
---|
689 | } |
---|
690 | |
---|
691 | // ------------------------------------- |
---|
692 | // buffer size calculation: |
---|
693 | // ------------------------------------- |
---|
694 | |
---|
695 | static size_t _get_stream_buffersize (struct handle * handle) { |
---|
696 | if ( handle->stream_buffersize ) |
---|
697 | return handle->stream_buffersize; |
---|
698 | |
---|
699 | return handle->stream_buffersize = handle->stream.info.rate * |
---|
700 | handle->stream.info.channels * |
---|
701 | handle->stream.info.bits / 800; |
---|
702 | } |
---|
703 | |
---|
704 | // ------------------------------------- |
---|
705 | // emulated functions follow: |
---|
706 | // ------------------------------------- |
---|
707 | |
---|
708 | int open(const char *pathname, int flags, ...) { |
---|
709 | int ret; |
---|
710 | mode_t mode = 0; |
---|
711 | va_list args; |
---|
712 | |
---|
713 | _init(); |
---|
714 | |
---|
715 | ret = _open_file(pathname, flags); |
---|
716 | |
---|
717 | switch (ret) { |
---|
718 | case -2: // continue as normal, use _op.open() |
---|
719 | break; |
---|
720 | case -1: // pass error to caller |
---|
721 | return -1; |
---|
722 | break; |
---|
723 | default: // return successfully opened pointer to caller |
---|
724 | return ret; |
---|
725 | break; |
---|
726 | } |
---|
727 | |
---|
728 | if (flags & O_CREAT) { |
---|
729 | va_start(args, flags); |
---|
730 | mode = va_arg(args, mode_t); |
---|
731 | va_end(args); |
---|
732 | } |
---|
733 | |
---|
734 | return _os.open(pathname, flags, mode); |
---|
735 | } |
---|
736 | |
---|
737 | int close(int fd) { |
---|
738 | struct pointer * pointer; |
---|
739 | _init(); |
---|
740 | |
---|
741 | if ( (pointer = _get_pointer_by_fh(fd)) != NULL ) { |
---|
742 | _close_pointer(pointer); |
---|
743 | return 0; |
---|
744 | } |
---|
745 | |
---|
746 | return _os.close(fd); |
---|
747 | } |
---|
748 | |
---|
749 | ssize_t write(int fd, const void *buf, size_t count) { |
---|
750 | struct pointer * pointer; |
---|
751 | ssize_t ret; |
---|
752 | |
---|
753 | _init(); |
---|
754 | |
---|
755 | if ( (pointer = _get_pointer_by_fh(fd)) != NULL ) { |
---|
756 | if ( pointer->handle->type == HT_STREAM ) { |
---|
757 | if ( pointer->handle->stream_opened == 0 ) { |
---|
758 | if ( _open_stream(pointer->handle) == -1 ) { |
---|
759 | errno = EIO; |
---|
760 | return -1; |
---|
761 | } |
---|
762 | } |
---|
763 | ret = roar_vio_write(&(pointer->handle->stream_vio), (char*)buf, count); |
---|
764 | if ( ret > 0 ) |
---|
765 | pointer->handle->writec += ret; |
---|
766 | return ret; |
---|
767 | } else { |
---|
768 | errno = EINVAL; |
---|
769 | return -1; |
---|
770 | } |
---|
771 | } |
---|
772 | |
---|
773 | return _os.write(fd, buf, count); |
---|
774 | } |
---|
775 | |
---|
776 | ssize_t read(int fd, void *buf, size_t count) { |
---|
777 | struct pointer * pointer; |
---|
778 | ssize_t ret; |
---|
779 | |
---|
780 | _init(); |
---|
781 | |
---|
782 | if ( (pointer = _get_pointer_by_fh(fd)) != NULL ) { |
---|
783 | if ( pointer->handle->type == HT_STREAM ) { |
---|
784 | if ( pointer->handle->stream_opened == 0 ) { |
---|
785 | if ( _open_stream(pointer->handle) == -1 ) { |
---|
786 | errno = EIO; |
---|
787 | return -1; |
---|
788 | } |
---|
789 | } |
---|
790 | ret = roar_vio_read(&(pointer->handle->stream_vio), buf, count); |
---|
791 | if ( ret > 0 ) |
---|
792 | pointer->handle->writec += ret; |
---|
793 | return ret; |
---|
794 | } else { |
---|
795 | errno = EINVAL; |
---|
796 | return -1; |
---|
797 | } |
---|
798 | } |
---|
799 | |
---|
800 | return _os.read(fd, buf, count); |
---|
801 | } |
---|
802 | |
---|
803 | IOCTL() { |
---|
804 | map_args; |
---|
805 | struct pointer * pointer; |
---|
806 | struct handle * handle; |
---|
807 | int * ip = NULL; |
---|
808 | audio_buf_info * bi; |
---|
809 | count_info * ci; |
---|
810 | #ifdef va_argp |
---|
811 | va_list args; |
---|
812 | #endif |
---|
813 | |
---|
814 | _init(); |
---|
815 | |
---|
816 | // ROAR_DBG("ioctl(__fd=%i, __request=%lu) = ?", __fd, (long unsigned int) __request); |
---|
817 | |
---|
818 | #ifdef va_argp |
---|
819 | va_start (args, __request); |
---|
820 | argp = va_arg (args, void *); |
---|
821 | va_end (args); |
---|
822 | #endif |
---|
823 | |
---|
824 | // ROAR_DBG("ioctl(__fd=%i, __request=%lu): argp=%p", __fd, (long unsigned int) __request, argp); |
---|
825 | |
---|
826 | if ( (pointer = _get_pointer_by_fh(__fd)) != NULL ) { |
---|
827 | ip = argp; |
---|
828 | // ROAR_DBG("ioctl(__fd=%i, __request=%lu): ip=%p", __fd, (long unsigned int) __request, ip); |
---|
829 | switch ((handle = pointer->handle)->type) { |
---|
830 | case HT_STREAM: |
---|
831 | switch (__request) { |
---|
832 | case SNDCTL_DSP_RESET: |
---|
833 | case SNDCTL_DSP_POST: |
---|
834 | case SNDCTL_DSP_SETFRAGMENT: // any fragments should be ok for us... |
---|
835 | return 0; |
---|
836 | break; |
---|
837 | case SNDCTL_DSP_SPEED: |
---|
838 | handle->stream.info.rate = *ip; |
---|
839 | return 0; |
---|
840 | break; |
---|
841 | case SNDCTL_DSP_CHANNELS: |
---|
842 | handle->stream.info.channels = *ip; |
---|
843 | return 0; |
---|
844 | break; |
---|
845 | case SNDCTL_DSP_STEREO: |
---|
846 | handle->stream.info.channels = *ip ? 2 : 1; |
---|
847 | return 0; |
---|
848 | break; |
---|
849 | case SNDCTL_DSP_GETBLKSIZE: |
---|
850 | *ip = _get_stream_buffersize(handle); |
---|
851 | return 0; |
---|
852 | break; |
---|
853 | case SNDCTL_DSP_SETFMT: |
---|
854 | return _ioctl_stream_format(handle, *ip); |
---|
855 | break; |
---|
856 | case SNDCTL_DSP_GETFMTS: |
---|
857 | // ROAR_DBG("ioctl(__fd=%i, __request=%lu): ip=%p", __fd, (long unsigned int) __request, ip); |
---|
858 | *ip = _ioctl_stream_format_list(); |
---|
859 | return 0; |
---|
860 | break; |
---|
861 | case SNDCTL_DSP_GETOSPACE: |
---|
862 | case SNDCTL_DSP_GETISPACE: |
---|
863 | bi = argp; |
---|
864 | memset(bi, 0, sizeof(*bi)); |
---|
865 | bi->bytes = _get_stream_buffersize(handle); |
---|
866 | bi->fragments = 1; |
---|
867 | bi->fragsize = bi->bytes; |
---|
868 | bi->fragstotal = 1; |
---|
869 | return 0; |
---|
870 | break; |
---|
871 | case SNDCTL_DSP_GETOPTR: |
---|
872 | ci = argp; |
---|
873 | memset(ci, 0, sizeof(*ci)); |
---|
874 | ci->bytes = handle->writec; |
---|
875 | ci->blocks = ci->bytes / _get_stream_buffersize(handle); |
---|
876 | ci->ptr = 0; |
---|
877 | return 0; |
---|
878 | break; |
---|
879 | case SNDCTL_DSP_GETIPTR: |
---|
880 | ci = argp; |
---|
881 | memset(ci, 0, sizeof(*ci)); |
---|
882 | ci->bytes = handle->readc; |
---|
883 | ci->blocks = ci->bytes / _get_stream_buffersize(handle); |
---|
884 | ci->ptr = 0; |
---|
885 | return 0; |
---|
886 | break; |
---|
887 | #ifdef SNDCTL_DSP_GETPLAYVOL |
---|
888 | case SNDCTL_DSP_GETPLAYVOL: |
---|
889 | return _ioctl_mixer(handle, SOUND_MIXER_READ_PCM, argp); |
---|
890 | break; |
---|
891 | #endif |
---|
892 | #ifdef SNDCTL_DSP_SETPLAYVOL |
---|
893 | case SNDCTL_DSP_SETPLAYVOL: |
---|
894 | return _ioctl_mixer(handle, SOUND_MIXER_WRITE_PCM, argp); |
---|
895 | break; |
---|
896 | #endif |
---|
897 | default: |
---|
898 | ROAR_DBG("ioctl(__fd=%i, __request=%lu) = -1 // errno = ENOSYS", __fd, (long unsigned int) __request); |
---|
899 | errno = ENOSYS; |
---|
900 | return -1; |
---|
901 | } |
---|
902 | break; |
---|
903 | case HT_MIXER: |
---|
904 | return _ioctl_mixer(handle, __request, argp); |
---|
905 | break; |
---|
906 | default: |
---|
907 | ROAR_DBG("ioctl(__fd=%i, __request=%lu): unknown handle type: no ioctl()s supported", __fd, (long unsigned int) __request); |
---|
908 | ROAR_DBG("ioctl(__fd=%i, __request=%lu) = -1 // errno = ENOSYS", __fd, (long unsigned int) __request); |
---|
909 | errno = EINVAL; |
---|
910 | return -1; |
---|
911 | break; |
---|
912 | } |
---|
913 | } |
---|
914 | |
---|
915 | #ifdef IOCTL_IS_ALIAS |
---|
916 | errno = ENOSYS; |
---|
917 | return -1; |
---|
918 | #else |
---|
919 | return _os.ioctl(__fd, __request, argp); |
---|
920 | #endif |
---|
921 | } |
---|
922 | |
---|
923 | #endif |
---|
924 | |
---|
925 | //ll |
---|