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 | if ( client == -1 || cmd < ESD_PROTO_CONNECT || cmd > ESD_PROTO_MAX || vio == NULL ) |
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76 | return -1; |
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77 | |
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78 | for (i = 0; (cur = &(g_emul_esd_commands[i]))->cmd != -1; i++) { |
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79 | if ( cur->cmd == cmd ) { |
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80 | if ( cur->datalen > 0 ) { |
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81 | if ( (data = malloc(cur->datalen)) == NULL ) { |
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82 | // we will do a protocol error in case we do not drop the client |
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83 | clients_delete(client); |
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84 | return -1; |
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85 | } |
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86 | |
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87 | if ( roar_vio_read(vio, data, cur->datalen) != cur->datalen ) { |
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88 | free(data); |
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89 | clients_delete(client); |
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90 | return -1; |
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91 | } |
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92 | } |
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93 | |
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94 | if ( cur->handler == NULL ) { |
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95 | ROAR_WARN("emul_esd_exec_command(client=%i, cmd=%s(%i), vio=%p): client uses unimplemted command", |
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96 | client, cur->name, cmd, vio |
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97 | ); |
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98 | r = -1; |
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99 | } else { |
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100 | r = cur->handler(client, cur, data, vio); |
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101 | } |
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102 | |
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103 | if ( data != NULL ) |
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104 | free(data); |
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105 | |
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106 | return r; |
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107 | } |
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108 | } |
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109 | |
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110 | return -1; |
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111 | } |
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112 | |
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113 | int emul_esd_check_client(int client, struct roar_vio_calls * vio) { |
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114 | struct roar_vio_calls calls; |
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115 | _cmd_t cmd; |
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116 | |
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117 | if ( client == -1 ) |
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118 | return -1; |
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119 | |
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120 | if ( vio == NULL ) { |
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121 | vio = &calls; |
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122 | if ( roar_vio_open_fh(vio, clients_get_fh(client)) == -1 ) |
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123 | return -1; |
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124 | } |
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125 | |
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126 | if ( roar_vio_read(vio, &cmd, _INTSIZE) != _INTSIZE ) { |
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127 | // really bad protocol error |
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128 | clients_delete(client); |
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129 | return -1; |
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130 | } |
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131 | |
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132 | return emul_esd_exec_command(client, cmd, vio); |
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133 | } |
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134 | |
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135 | // porto lib: |
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136 | int emul_esd_int_read_buf (int client, int * data, void * buf) { |
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137 | _cmd_t d; |
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138 | |
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139 | if ( data == NULL || buf == NULL ) |
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140 | return -1; |
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141 | |
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142 | d = *(_cmd_t*)buf; |
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143 | |
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144 | *data = d; |
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145 | |
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146 | return 0; |
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147 | } |
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148 | int emul_esd_int_read (int client, int * data, struct roar_vio_calls * vio) { |
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149 | _cmd_t d; |
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150 | |
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151 | if ( data == NULL ) |
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152 | return -1; |
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153 | |
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154 | if ( roar_vio_read(vio, &d, _INTSIZE) != _INTSIZE ) |
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155 | return -1; |
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156 | |
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157 | *data = d; |
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158 | |
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159 | return 0; |
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160 | } |
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161 | |
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162 | int emul_esd_int_write (int client, int data, struct roar_vio_calls * vio) { |
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163 | _cmd_t d = data; |
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164 | |
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165 | return roar_vio_write(vio, &d, _INTSIZE) == _INTSIZE ? 0 : -1; |
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166 | } |
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167 | |
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168 | int emul_esd_test_auth (int client, void * data, struct roar_vio_calls * vio) { |
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169 | // accept all clients for the moment. |
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170 | return emul_esd_int_write(client, 1, vio); |
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171 | } |
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172 | |
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173 | int emul_esd_test_byteorder(int client, void * data) { |
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174 | // TODO: do a real test |
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175 | return 0; |
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176 | } |
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177 | |
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178 | // handler: |
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179 | int emul_esd_on_connect (int client, struct emul_esd_command * cmd, void * data, struct roar_vio_calls * vio) { |
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180 | if ( client == -1 || data == NULL || vio == NULL ) |
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181 | return -1; |
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182 | |
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183 | if ( emul_esd_test_auth(client, data, vio) == -1 ) |
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184 | return -1; |
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185 | |
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186 | if ( emul_esd_test_byteorder(client, data+ESD_KEY_LEN) == -1 ) |
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187 | return -1; |
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188 | |
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189 | return 0; |
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190 | } |
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191 | |
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192 | int emul_esd_on_stream (int client, struct emul_esd_command * cmd, void * data, struct roar_vio_calls * vio) { |
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193 | struct roar_stream_server * ss; |
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194 | struct roar_stream * s; |
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195 | int stream; |
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196 | int dir = -1; |
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197 | int esdformat; |
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198 | int rate; |
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199 | |
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200 | if ( client == -1 || cmd == NULL || data == NULL || vio == NULL ) |
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201 | return -1; |
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202 | |
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203 | switch (cmd->cmd) { |
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204 | case ESD_PROTO_STREAM_PLAY: dir = ROAR_DIR_PLAY; break; |
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205 | case ESD_PROTO_STREAM_REC: dir = ROAR_DIR_RECORD; break; |
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206 | case ESD_PROTO_STREAM_MON: dir = ROAR_DIR_MONITOR; break; |
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207 | case ESD_PROTO_STREAM_FILT: dir = ROAR_DIR_FILTER; break; |
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208 | default: |
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209 | clients_delete(client); |
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210 | return -1; |
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211 | } |
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212 | |
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213 | ROAR_DBG("emul_esd_on_stream(client=%i, ...): creating stream...", client); |
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214 | if ((stream = streams_new()) == -1 ) { |
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215 | clients_delete(client); |
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216 | return -1; |
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217 | } |
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218 | |
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219 | ROAR_DBG("emul_esd_on_stream(client=%i, ...): getting stream...", client); |
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220 | if ( streams_get(stream, &ss) == -1 ) { |
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221 | streams_delete(stream); |
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222 | clients_delete(client); |
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223 | return -1; |
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224 | } |
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225 | |
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226 | s = ROAR_STREAM(ss); |
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227 | |
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228 | ROAR_DBG("emul_esd_on_stream(client=%i, ...): set client of stream...", client); |
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229 | if ( client_stream_add(client, stream) == -1 ) { |
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230 | streams_delete(stream); |
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231 | clients_delete(client); |
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232 | return -1; |
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233 | } |
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234 | |
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235 | emul_esd_int_read_buf(client, &esdformat, data); |
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236 | emul_esd_int_read_buf(client, &rate, data+_INTSIZE); |
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237 | |
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238 | s->info.rate = rate; |
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239 | |
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240 | switch (esdformat & ESD_MASK_BITS) { |
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241 | case ESD_BITS8: s->info.bits = 8; break; |
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242 | case ESD_BITS16: s->info.bits = 16; break; |
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243 | default: |
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244 | streams_delete(stream); |
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245 | clients_delete(client); |
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246 | return -1; |
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247 | } |
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248 | |
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249 | switch (esdformat & ESD_MASK_CHAN) { |
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250 | case ESD_MONO: s->info.channels = 1; break; |
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251 | case ESD_STEREO: s->info.channels = 2; break; |
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252 | default: |
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253 | streams_delete(stream); |
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254 | clients_delete(client); |
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255 | return -1; |
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256 | } |
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257 | |
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258 | ss->codec_orgi = s->info.codec; |
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259 | |
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260 | if ( streams_set_dir(stream, dir, 1) == -1 ) { |
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261 | clients_delete(client); |
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262 | return -1; |
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263 | } |
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264 | |
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265 | if ( client_stream_exec(client, stream) == -1 ) { |
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266 | clients_delete(client); |
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267 | return -1; |
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268 | } |
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269 | |
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270 | return 0; |
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271 | } |
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272 | |
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273 | #endif |
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274 | #endif |
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275 | |
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276 | //ll |
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