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"), NULL}, |
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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"), NULL}, |
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44 | {ESD_PROTO_STREAM_REC, ESD_NAME_MAX + 2 * _INTSIZE, _NAME("STREAM_REC"), NULL}, |
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45 | {ESD_PROTO_STREAM_MON, ESD_NAME_MAX + 2 * _INTSIZE, _NAME("STREAM_MON"), NULL}, |
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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"), NULL}, |
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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 | int emul_esd_exec_command(int client, int cmd, struct roar_vio_calls * vio) { |
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69 | struct emul_esd_command * cur; |
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70 | void * data = NULL; |
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71 | int r; |
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72 | int i; |
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73 | |
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74 | if ( client == -1 || cmd < ESD_PROTO_CONNECT || cmd > ESD_PROTO_MAX || vio == NULL ) |
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75 | return -1; |
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76 | |
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77 | for (i = 0; (cur = &(g_emul_esd_commands[i]))->cmd != -1; i++) { |
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78 | if ( cur->cmd == cmd ) { |
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79 | if ( cur->datalen > 0 ) { |
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80 | if ( (data = malloc(cur->datalen)) == NULL ) { |
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81 | // we will do a protocol error in case we do not drop the client |
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82 | clients_delete(client); |
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83 | return -1; |
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84 | } |
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85 | |
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86 | if ( roar_vio_read(vio, data, cur->datalen) != cur->datalen ) { |
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87 | free(data); |
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88 | clients_delete(client); |
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89 | return -1; |
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90 | } |
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91 | } |
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92 | |
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93 | if ( cur->handler == NULL ) { |
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94 | ROAR_WARN("emul_esd_exec_command(client=%i, cmd=%s(%i), vio=%p): client uses unimplemted command", |
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95 | client, cur->name, cmd, vio |
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96 | ); |
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97 | r = -1; |
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98 | } else { |
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99 | r = cur->handler(client, cur, data, vio); |
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100 | } |
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101 | |
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102 | if ( data != NULL ) |
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103 | free(data); |
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104 | |
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105 | return r; |
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106 | } |
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107 | } |
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108 | |
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109 | return -1; |
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110 | } |
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111 | |
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112 | int emul_esd_check_client(int client, struct roar_vio_calls * vio) { |
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113 | struct roar_vio_calls calls; |
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114 | _cmd_t cmd; |
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115 | |
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116 | if ( client == -1 ) |
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117 | return -1; |
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118 | |
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119 | if ( vio == NULL ) { |
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120 | vio = &calls; |
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121 | if ( roar_vio_open_fh(vio, clients_get_fh(client)) == -1 ) |
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122 | return -1; |
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123 | } |
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124 | |
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125 | if ( roar_vio_read(vio, &cmd, _INTSIZE) != _INTSIZE ) { |
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126 | // really bad protocol error |
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127 | clients_delete(client); |
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128 | return -1; |
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129 | } |
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130 | |
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131 | return emul_esd_exec_command(client, cmd, vio); |
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132 | } |
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133 | |
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134 | #endif |
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135 | #endif |
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136 | |
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137 | //ll |
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