1 | //emul_esd.c: |
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2 | |
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3 | /* |
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4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2009 |
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5 | * |
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6 | * This file is part of roard a part of RoarAudio, |
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7 | * a cross-platform sound system for both, home and professional use. |
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8 | * See README for details. |
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9 | * |
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10 | * This file is free software; you can redistribute it and/or modify |
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11 | * it under the terms of the GNU General Public License version 3 |
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12 | * as published by the Free Software Foundation. |
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13 | * |
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14 | * RoarAudio is distributed in the hope that it will be useful, |
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15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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17 | * GNU General Public License for more details. |
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18 | * |
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19 | * You should have received a copy of the GNU General Public License |
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20 | * along with this software; see the file COPYING. If not, write to |
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21 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
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22 | * |
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23 | */ |
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24 | |
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25 | #include "roard.h" |
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26 | |
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27 | #ifndef ROAR_WITHOUT_DCOMP_EMUL_ESD |
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28 | #ifdef ROAR_HAVE_ESD |
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29 | |
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30 | #if !defined(ROAR_TARGET_MICROCONTROLLER) && !defined(ROAR_MINIMAL) |
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31 | #define _NAME(x) (x) |
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32 | #else |
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33 | #define _NAME(x) ((char*)NULL) |
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34 | #endif |
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35 | |
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36 | #define _cmd_t int |
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37 | #define _INTSIZE sizeof(_cmd_t) |
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38 | |
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39 | struct emul_esd_command g_emul_esd_commands[] = { |
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40 | {ESD_PROTO_CONNECT, ESD_KEY_LEN + _INTSIZE, _NAME("CONNECT"), emul_esd_on_connect}, |
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41 | {ESD_PROTO_LOCK, ESD_KEY_LEN + _INTSIZE, _NAME("LOCK"), NULL}, |
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42 | {ESD_PROTO_UNLOCK, ESD_KEY_LEN + _INTSIZE, _NAME("UNLOCK"), NULL}, |
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43 | {ESD_PROTO_STREAM_PLAY, ESD_NAME_MAX + 2 * _INTSIZE, _NAME("STREAM_PLAY"), emul_esd_on_stream}, |
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44 | {ESD_PROTO_STREAM_REC, ESD_NAME_MAX + 2 * _INTSIZE, _NAME("STREAM_REC"), emul_esd_on_stream}, |
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45 | {ESD_PROTO_STREAM_MON, ESD_NAME_MAX + 2 * _INTSIZE, _NAME("STREAM_MON"), emul_esd_on_stream}, |
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46 | {ESD_PROTO_SAMPLE_CACHE, ESD_NAME_MAX + 3 * _INTSIZE, _NAME("SAMPLE_CACHE"), NULL}, |
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47 | {ESD_PROTO_SAMPLE_FREE, _INTSIZE, _NAME("SAMPLE_FREE"), NULL}, |
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48 | {ESD_PROTO_SAMPLE_PLAY, _INTSIZE, _NAME("SAMPLE_PLAY"), NULL}, |
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49 | {ESD_PROTO_SAMPLE_LOOP, _INTSIZE, _NAME("SAMPLE_LOOP"), NULL}, |
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50 | {ESD_PROTO_SAMPLE_STOP, _INTSIZE, _NAME("SAMPLE_STOP"), NULL}, |
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51 | {ESD_PROTO_SAMPLE_KILL, 0 , _NAME("SAMPLE_KILL"), NULL}, |
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52 | {ESD_PROTO_STANDBY, ESD_KEY_LEN + _INTSIZE, _NAME("STANDBY"), NULL}, |
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53 | {ESD_PROTO_RESUME, ESD_KEY_LEN + _INTSIZE, _NAME("RESUME"), NULL}, |
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54 | {ESD_PROTO_SAMPLE_GETID, ESD_NAME_MAX , _NAME("SAMPLE_GETID"), NULL}, |
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55 | {ESD_PROTO_STREAM_FILT, ESD_NAME_MAX + 2 * _INTSIZE, _NAME("STREAM_FILT"), emul_esd_on_stream}, |
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56 | {ESD_PROTO_SERVER_INFO, _INTSIZE, _NAME("SERVER_INFO"), NULL}, |
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57 | {ESD_PROTO_ALL_INFO, _INTSIZE, _NAME("ALL_INFO"), NULL}, |
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58 | {ESD_PROTO_SUBSCRIBE, 0 , _NAME("SUBSCRIBE"), NULL}, |
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59 | {ESD_PROTO_UNSUBSCRIBE, 0 , _NAME("UNSUBSCRIBE"), NULL}, |
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60 | {ESD_PROTO_STREAM_PAN, 3 * _INTSIZE, _NAME("STREAM_PAN"), NULL}, |
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61 | {ESD_PROTO_SAMPLE_PAN, 3 * _INTSIZE, _NAME("SAMPLE_PAN"), NULL}, |
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62 | {ESD_PROTO_STANDBY_MODE, _INTSIZE, _NAME("STANDBY_MODE"), NULL}, |
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63 | {ESD_PROTO_LATENCY, 0 , _NAME("LATENCY"), NULL}, |
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64 | {ESD_PROTO_MAX, 0 , _NAME("MAX"), NULL}, |
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65 | {-1, 0, _NAME("END OF LIST"), NULL} |
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66 | }; |
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67 | |
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68 | // command handling: |
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69 | int emul_esd_exec_command(int client, int cmd, struct roar_vio_calls * vio) { |
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70 | struct emul_esd_command * cur; |
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71 | void * data = NULL; |
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72 | int r; |
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73 | int i; |
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74 | |
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75 | ROAR_DBG("emul_esd_exec_command(*) = ?"); |
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76 | |
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77 | if ( client == -1 || cmd < ESD_PROTO_CONNECT || cmd > ESD_PROTO_MAX || vio == NULL ) |
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78 | return -1; |
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79 | |
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80 | ROAR_DBG("emul_esd_exec_command(*) = ?"); |
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81 | |
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82 | for (i = 0; (cur = &(g_emul_esd_commands[i]))->cmd != -1; i++) { |
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83 | if ( cur->cmd == cmd ) { |
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84 | if ( cur->datalen > 0 ) { |
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85 | if ( (data = malloc(cur->datalen)) == NULL ) { |
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86 | // we will do a protocol error in case we do not drop the client |
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87 | clients_delete(client); |
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88 | return -1; |
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89 | } |
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90 | |
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91 | if ( roar_vio_read(vio, data, cur->datalen) != cur->datalen ) { |
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92 | free(data); |
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93 | clients_delete(client); |
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94 | return -1; |
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95 | } |
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96 | } |
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97 | |
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98 | if ( cur->handler == NULL ) { |
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99 | ROAR_WARN("emul_esd_exec_command(client=%i, cmd=%s(%i), vio=%p): client uses unimplemted command", |
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100 | client, cur->name, cmd, vio |
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101 | ); |
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102 | clients_delete(client); |
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103 | r = -1; |
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104 | } else { |
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105 | r = cur->handler(client, cur, data, vio); |
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106 | } |
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107 | |
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108 | if ( data != NULL ) |
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109 | free(data); |
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110 | |
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111 | return r; |
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112 | } |
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113 | } |
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114 | |
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115 | return -1; |
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116 | } |
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117 | |
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118 | int emul_esd_check_client(int client, struct roar_vio_calls * vio) { |
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119 | struct roar_vio_calls calls; |
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120 | _cmd_t cmd; |
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121 | |
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122 | if ( client == -1 ) |
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123 | return -1; |
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124 | |
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125 | if ( vio == NULL ) { |
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126 | vio = &calls; |
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127 | if ( roar_vio_open_fh(vio, clients_get_fh(client)) == -1 ) |
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128 | return -1; |
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129 | } |
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130 | |
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131 | if ( roar_vio_read(vio, &cmd, _INTSIZE) != _INTSIZE ) { |
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132 | // really bad protocol error |
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133 | clients_delete(client); |
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134 | return -1; |
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135 | } |
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136 | |
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137 | return emul_esd_exec_command(client, cmd, vio); |
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138 | } |
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139 | |
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140 | // porto lib: |
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141 | int emul_esd_int_read_buf (int client, int * data, void * buf) { |
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142 | _cmd_t d; |
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143 | |
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144 | if ( data == NULL || buf == NULL ) |
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145 | return -1; |
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146 | |
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147 | d = *(_cmd_t*)buf; |
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148 | |
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149 | *data = d; |
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150 | |
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151 | return 0; |
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152 | } |
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153 | int emul_esd_int_read (int client, int * data, struct roar_vio_calls * vio) { |
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154 | _cmd_t d; |
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155 | |
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156 | if ( data == NULL ) |
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157 | return -1; |
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158 | |
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159 | if ( roar_vio_read(vio, &d, _INTSIZE) != _INTSIZE ) |
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160 | return -1; |
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161 | |
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162 | *data = d; |
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163 | |
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164 | return 0; |
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165 | } |
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166 | |
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167 | int emul_esd_int_write (int client, int data, struct roar_vio_calls * vio) { |
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168 | _cmd_t d = data; |
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169 | |
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170 | return roar_vio_write(vio, &d, _INTSIZE) == _INTSIZE ? 0 : -1; |
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171 | } |
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172 | |
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173 | int emul_esd_test_auth (int client, void * data, struct roar_vio_calls * vio) { |
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174 | // accept all clients for the moment. |
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175 | return emul_esd_int_write(client, 1, vio); |
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176 | } |
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177 | |
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178 | int emul_esd_test_byteorder(int client, void * data) { |
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179 | // TODO: do a real test |
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180 | return 0; |
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181 | } |
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182 | |
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183 | // handler: |
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184 | int emul_esd_on_connect (int client, struct emul_esd_command * cmd, void * data, struct roar_vio_calls * vio) { |
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185 | |
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186 | ROAR_DBG("emul_esd_on_connect(client=%i, cmd=%p, data=%p, vio=%p) = ?", client, cmd, data, vio); |
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187 | |
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188 | if ( client == -1 || data == NULL || vio == NULL ) |
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189 | return -1; |
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190 | |
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191 | ROAR_DBG("emul_esd_on_connect(client=%i, cmd=%p, data=%p, vio=%p) = ?", client, cmd, data, vio); |
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192 | |
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193 | if ( emul_esd_test_auth(client, data, vio) == -1 ) |
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194 | return -1; |
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195 | |
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196 | ROAR_DBG("emul_esd_on_connect(client=%i, cmd=%p, data=%p, vio=%p) = ?", client, cmd, data, vio); |
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197 | |
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198 | if ( emul_esd_test_byteorder(client, data+ESD_KEY_LEN) == -1 ) |
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199 | return -1; |
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200 | |
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201 | ROAR_DBG("emul_esd_on_connect(client=%i, cmd=%p, data=%p, vio=%p) = ?", client, cmd, data, vio); |
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202 | |
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203 | return 0; |
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204 | } |
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205 | |
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206 | int emul_esd_on_stream (int client, struct emul_esd_command * cmd, void * data, struct roar_vio_calls * vio) { |
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207 | struct roar_stream_server * ss; |
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208 | struct roar_stream * s; |
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209 | struct roar_client * c; |
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210 | int stream; |
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211 | int dir = -1; |
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212 | int esdformat; |
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213 | int rate; |
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214 | |
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215 | if ( client == -1 || cmd == NULL || data == NULL || vio == NULL ) |
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216 | return -1; |
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217 | |
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218 | switch (cmd->cmd) { |
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219 | case ESD_PROTO_STREAM_PLAY: dir = ROAR_DIR_PLAY; break; |
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220 | case ESD_PROTO_STREAM_REC: dir = ROAR_DIR_RECORD; break; |
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221 | case ESD_PROTO_STREAM_MON: dir = ROAR_DIR_MONITOR; break; |
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222 | case ESD_PROTO_STREAM_FILT: dir = ROAR_DIR_FILTER; break; |
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223 | default: |
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224 | clients_delete(client); |
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225 | return -1; |
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226 | } |
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227 | |
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228 | if ( clients_get(client, &c) == -1 ) { |
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229 | return -1; |
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230 | } |
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231 | |
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232 | ROAR_DBG("emul_esd_on_stream(client=%i, ...): creating stream...", client); |
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233 | if ((stream = streams_new()) == -1 ) { |
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234 | clients_delete(client); |
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235 | return -1; |
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236 | } |
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237 | |
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238 | ROAR_DBG("emul_esd_on_stream(client=%i, ...): getting stream...", client); |
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239 | if ( streams_get(stream, &ss) == -1 ) { |
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240 | streams_delete(stream); |
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241 | clients_delete(client); |
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242 | return -1; |
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243 | } |
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244 | |
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245 | s = ROAR_STREAM(ss); |
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246 | |
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247 | ROAR_DBG("emul_esd_on_stream(client=%i, ...): set client of stream...", client); |
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248 | if ( client_stream_add(client, stream) == -1 ) { |
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249 | streams_delete(stream); |
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250 | clients_delete(client); |
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251 | return -1; |
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252 | } |
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253 | |
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254 | emul_esd_int_read_buf(client, &esdformat, data); |
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255 | emul_esd_int_read_buf(client, &rate, data+_INTSIZE); |
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256 | |
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257 | strncpy(c->name, data + 2*_INTSIZE, ROAR_BUFFER_NAME > ESD_NAME_MAX ? ESD_NAME_MAX : ROAR_BUFFER_NAME); |
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258 | c->name[ROAR_BUFFER_NAME-1] = 0; |
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259 | |
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260 | ROAR_DBG("emul_esd_on_stream(*): esdformat=0x%.8X, rate=%i", esdformat, rate); |
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261 | |
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262 | s->info.rate = rate; |
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263 | |
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264 | switch (esdformat & ESD_MASK_BITS) { |
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265 | case ESD_BITS8: s->info.bits = 8; s->info.codec = ROAR_CODEC_PCM_U_LE; break; |
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266 | case ESD_BITS16: s->info.bits = 16; s->info.codec = ROAR_CODEC_DEFAULT; break; |
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267 | default: |
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268 | streams_delete(stream); |
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269 | clients_delete(client); |
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270 | return -1; |
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271 | } |
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272 | |
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273 | switch (esdformat & ESD_MASK_CHAN) { |
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274 | case ESD_MONO: s->info.channels = 1; break; |
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275 | case ESD_STEREO: s->info.channels = 2; break; |
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276 | default: |
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277 | streams_delete(stream); |
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278 | clients_delete(client); |
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279 | return -1; |
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280 | } |
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281 | |
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282 | ss->codec_orgi = s->info.codec; |
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283 | |
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284 | ROAR_DBG("emul_esd_on_stream(*): s->info = {.rate=%i, .bits=%i, .channels=%i, .codec=%i}", s->info.rate, s->info.bits, s->info.channels, s->info.codec); |
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285 | |
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286 | if ( streams_set_dir(stream, dir, 1) == -1 ) { |
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287 | clients_delete(client); |
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288 | return -1; |
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289 | } |
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290 | |
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291 | if ( client_stream_exec(client, stream) == -1 ) { |
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292 | clients_delete(client); |
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293 | return -1; |
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294 | } |
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295 | |
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296 | return 0; |
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297 | } |
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298 | |
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299 | #endif |
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300 | #endif |
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301 | |
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302 | //ll |
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