1 | //roardmx.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 libroardsp 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 | * libroardsp 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 "libroarlight.h" |
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26 | |
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27 | // base(ic) check |
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28 | #define BCHK(x) if ( (x) == NULL ) return -1 |
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29 | |
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30 | int roar_roardmx_message_new (struct roar_roardmx_message * mes) { |
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31 | BCHK(mes); |
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32 | |
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33 | memset(mes, 0, sizeof(struct roar_roardmx_message)); |
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34 | |
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35 | mes->version = ROAR_ROARDMX_VERSION; |
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36 | |
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37 | return 0; |
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38 | } |
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39 | |
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40 | // low level: |
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41 | //int roar_roardmx_message_set_flag(struct roar_roardmx_message * mes, unsigned char flag); |
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42 | //int roar_roardmx_message_set_len (struct roar_roardmx_message * mes, size_t type); |
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43 | //int roar_roardmx_message_get_data(struct roar_roardmx_message * mes, unsigned char ** data); |
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44 | |
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45 | // mdium level: |
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46 | int roar_roardmx_message_set_type(struct roar_roardmx_message * mes, unsigned char type) { |
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47 | BCHK(mes); |
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48 | |
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49 | if ( (type | ROAR_ROARDMX_MASK_TYPE) - ROAR_ROARDMX_MASK_TYPE ) |
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50 | return -1; |
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51 | |
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52 | mes->type = type; |
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53 | |
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54 | return 0; |
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55 | } |
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56 | |
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57 | int roar_roardmx_message_get_flag(struct roar_roardmx_message * mes, unsigned char * flag) { |
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58 | BCHK(mes); |
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59 | |
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60 | *flag = mes->flags; |
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61 | |
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62 | return 0; |
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63 | } |
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64 | |
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65 | int roar_roardmx_message_get_type(struct roar_roardmx_message * mes, unsigned char * type) { |
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66 | BCHK(mes); |
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67 | |
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68 | *type = mes->type; |
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69 | |
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70 | return 0; |
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71 | } |
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72 | |
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73 | int roar_roardmx_message_get_len (struct roar_roardmx_message * mes, size_t * length) { |
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74 | BCHK(mes); |
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75 | |
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76 | *length = mes->length; |
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77 | |
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78 | return 0; |
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79 | } |
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80 | |
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81 | |
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82 | // IO: |
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83 | int roar_roardmx_message_send(struct roar_roardmx_message * mes, struct roar_vio_calls * vio); |
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84 | int roar_roardmx_message_recv(struct roar_roardmx_message * mes, struct roar_vio_calls * vio); |
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85 | |
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86 | // Data/high level: |
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87 | // * SSET: |
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88 | int roar_roardmx_message_new_sset (struct roar_roardmx_message * mes) { |
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89 | if ( roar_roardmx_message_new(mes) == -1 ) |
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90 | return -1; |
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91 | |
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92 | mes->type = ROAR_ROARDMX_TYPE_SSET; |
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93 | |
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94 | return 0; |
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95 | } |
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96 | |
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97 | int roar_roardmx_message_add_chanval(struct roar_roardmx_message * mes, uint16_t channel, unsigned char val) { |
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98 | uint16_t * chan; |
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99 | |
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100 | BCHK(mes); |
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101 | |
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102 | if ( (mes->length + 3) > ROAR_ROARDMX_DATA_LENGTH ) // message would be to long |
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103 | return -1; |
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104 | |
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105 | chan = (uint16_t *) &(mes->data[mes->length]); |
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106 | |
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107 | *chan = ROAR_HOST2NET16(channel); |
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108 | |
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109 | mes->data[mes->length + 2] = val; |
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110 | |
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111 | mes->length += 3; |
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112 | |
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113 | return 0; |
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114 | } |
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115 | |
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116 | |
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117 | //ll |
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