[1947] | 1 | //roardmx.c: |
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| 2 | |
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| 3 | /* |
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[5823] | 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2009-2013 |
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[1947] | 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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[3517] | 21 | * the Free Software Foundation, 51 Franklin Street, Fifth Floor, |
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| 22 | * Boston, MA 02110-1301, USA. |
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[1947] | 23 | * |
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| 24 | */ |
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| 25 | |
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| 26 | #include "libroarlight.h" |
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| 27 | |
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[1950] | 28 | // base(ic) check |
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[5924] | 29 | #define BCHK(x) if ( (x) == NULL ) { roar_err_set(ROAR_ERROR_FAULT); return -1; } |
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[1950] | 30 | |
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| 31 | int roar_roardmx_message_new (struct roar_roardmx_message * mes) { |
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| 32 | BCHK(mes); |
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| 33 | |
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| 34 | memset(mes, 0, sizeof(struct roar_roardmx_message)); |
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| 35 | |
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| 36 | mes->version = ROAR_ROARDMX_VERSION; |
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| 37 | |
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| 38 | return 0; |
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| 39 | } |
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| 40 | |
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| 41 | // low level: |
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| 42 | //int roar_roardmx_message_set_flag(struct roar_roardmx_message * mes, unsigned char flag); |
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| 43 | //int roar_roardmx_message_set_len (struct roar_roardmx_message * mes, size_t type); |
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| 44 | //int roar_roardmx_message_get_data(struct roar_roardmx_message * mes, unsigned char ** data); |
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| 45 | |
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[5924] | 46 | // medium level: |
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[1950] | 47 | int roar_roardmx_message_set_type(struct roar_roardmx_message * mes, unsigned char type) { |
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| 48 | BCHK(mes); |
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| 49 | |
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[5924] | 50 | // check if type contains non-type bits. |
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| 51 | if ( (type | ROAR_ROARDMX_MASK_TYPE) - ROAR_ROARDMX_MASK_TYPE ) { |
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| 52 | roar_err_set(ROAR_ERROR_INVAL); |
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[1950] | 53 | return -1; |
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[5924] | 54 | } |
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[1950] | 55 | |
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| 56 | mes->type = type; |
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| 57 | |
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| 58 | return 0; |
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| 59 | } |
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| 60 | |
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| 61 | int roar_roardmx_message_get_flag(struct roar_roardmx_message * mes, unsigned char * flag) { |
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| 62 | BCHK(mes); |
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| 63 | |
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| 64 | *flag = mes->flags; |
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| 65 | |
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| 66 | return 0; |
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| 67 | } |
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| 68 | |
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| 69 | int roar_roardmx_message_get_type(struct roar_roardmx_message * mes, unsigned char * type) { |
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| 70 | BCHK(mes); |
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| 71 | |
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| 72 | *type = mes->type; |
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| 73 | |
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| 74 | return 0; |
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| 75 | } |
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| 76 | |
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| 77 | int roar_roardmx_message_get_len (struct roar_roardmx_message * mes, size_t * length) { |
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| 78 | BCHK(mes); |
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| 79 | |
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| 80 | *length = mes->length; |
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| 81 | |
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| 82 | return 0; |
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| 83 | } |
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| 84 | |
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| 85 | |
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| 86 | // IO: |
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[1955] | 87 | int roar_roardmx_message_send(struct roar_roardmx_message * mes, struct roar_vio_calls * vio) { |
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| 88 | BCHK(mes); |
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| 89 | BCHK(vio); |
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| 90 | |
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[5924] | 91 | if ( mes->length > ROAR_ROARDMX_DATA_LENGTH ) { // this is very fatal! |
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| 92 | roar_panic(ROAR_FATAL_ERROR_MEMORY_CORRUPTION, NULL); |
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| 93 | roar_err_set(ROAR_ERROR_FAULT); |
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[1955] | 94 | return -1; |
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[5924] | 95 | } |
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[1955] | 96 | |
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| 97 | mes->data[0] = mes->version; |
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| 98 | mes->data[1] = (mes->flags & ROAR_ROARDMX_MASK_FLAGS) | |
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| 99 | (mes->type & ROAR_ROARDMX_MASK_TYPE ) ; |
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| 100 | |
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| 101 | mes->data[2] = mes->length; |
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| 102 | |
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[3636] | 103 | return roar_vio_write(vio, mes->data, mes->length + 3) == (ssize_t)(mes->length + 3) ? 0 : -1; |
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[1955] | 104 | } |
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| 105 | |
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[1957] | 106 | int roar_roardmx_message_recv(struct roar_roardmx_message * mes, struct roar_vio_calls * vio) { |
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| 107 | BCHK(mes); |
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| 108 | BCHK(vio); |
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| 109 | |
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[1960] | 110 | if ( roar_roardmx_message_new(mes) == -1 ) |
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| 111 | return -1; |
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| 112 | |
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[1957] | 113 | if ( roar_vio_read(vio, mes->data, 3) != 3 ) |
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| 114 | return -1; |
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| 115 | |
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| 116 | mes->version = mes->data[0]; |
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| 117 | |
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[5924] | 118 | if ( mes->version != ROAR_ROARDMX_VERSION ) { |
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| 119 | roar_err_set(ROAR_ERROR_NSVERSION); |
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[1957] | 120 | return -1; |
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[5924] | 121 | } |
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[1957] | 122 | |
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| 123 | mes->flags = mes->data[1] & ROAR_ROARDMX_MASK_FLAGS; |
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| 124 | mes->type = mes->data[1] & ROAR_ROARDMX_MASK_TYPE; |
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| 125 | |
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[1960] | 126 | mes->length = mes->data[2]; |
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[1957] | 127 | |
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[3636] | 128 | if ( roar_vio_read(vio, &(mes->data[3]), mes->length) != (ssize_t)mes->length ) |
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[1957] | 129 | return -1; |
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| 130 | |
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| 131 | return 0; |
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| 132 | } |
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[1950] | 133 | |
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| 134 | // Data/high level: |
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[5924] | 135 | // * *: |
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[1950] | 136 | int roar_roardmx_message_add_chanval(struct roar_roardmx_message * mes, uint16_t channel, unsigned char val) { |
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[1959] | 137 | register uint16_t * chan; |
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[1950] | 138 | |
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| 139 | BCHK(mes); |
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| 140 | |
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[5924] | 141 | switch (mes->type) { |
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| 142 | case ROAR_ROARDMX_TYPE_SSET: |
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| 143 | case ROAR_ROARDMX_TYPE_INC8S: |
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| 144 | break; |
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| 145 | default: |
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| 146 | roar_err_set(ROAR_ERROR_TYPEMM); |
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| 147 | return -1; |
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| 148 | break; |
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| 149 | } |
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| 150 | |
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| 151 | if ( (mes->length + 3) > ROAR_ROARDMX_DATA_LENGTH ) { // message would be to long |
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| 152 | roar_err_set(ROAR_ERROR_NOSPC); |
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[1950] | 153 | return -1; |
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[5924] | 154 | } |
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[1950] | 155 | |
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[1959] | 156 | chan = (uint16_t *) &(mes->data[mes->length + 3]); |
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[1950] | 157 | |
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| 158 | *chan = ROAR_HOST2NET16(channel); |
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| 159 | |
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[1956] | 160 | mes->data[mes->length + 2 + 3] = val; |
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[1950] | 161 | |
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| 162 | mes->length += 3; |
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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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[1959] | 167 | int roar_roardmx_message_get_chanval(struct roar_roardmx_message * mes, uint16_t * channel, unsigned char * val, int index) { |
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| 168 | register uint16_t * chan; |
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| 169 | |
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| 170 | BCHK(mes); |
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| 171 | |
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[5924] | 172 | if ( index < 0 ) { |
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| 173 | roar_err_set(ROAR_ERROR_INVAL); |
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[1959] | 174 | return -1; |
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[5924] | 175 | } |
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[1959] | 176 | |
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[5924] | 177 | if ( mes->version != ROAR_ROARDMX_VERSION ) { |
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| 178 | roar_err_set(ROAR_ERROR_NSVERSION); |
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[1959] | 179 | return -1; |
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[5924] | 180 | } |
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[1959] | 181 | |
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| 182 | switch (mes->type) { |
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| 183 | case ROAR_ROARDMX_TYPE_SSET: |
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| 184 | case ROAR_ROARDMX_TYPE_INC8S: |
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| 185 | if ( index >= (ROAR_ROARDMX_DATA_LENGTH/3) ) |
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| 186 | return -1; |
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| 187 | |
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| 188 | *val = mes->data[3 * index + 2 + 3]; |
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| 189 | chan = (uint16_t *) &(mes->data[3 + 3 * index]); |
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| 190 | *channel = ROAR_NET2HOST16(*chan); |
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[1960] | 191 | return 0; |
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[1959] | 192 | break; |
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| 193 | } |
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| 194 | |
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[5924] | 195 | roar_err_set(ROAR_ERROR_NSTYPE); |
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[1959] | 196 | return -1; |
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| 197 | } |
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| 198 | |
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| 199 | int roar_roardmx_message_numchannels(struct roar_roardmx_message * mes) { |
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| 200 | BCHK(mes); |
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| 201 | |
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[5924] | 202 | if ( mes->version != ROAR_ROARDMX_VERSION ) { |
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| 203 | roar_err_set(ROAR_ERROR_NSVERSION); |
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[1959] | 204 | return -1; |
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[5924] | 205 | } |
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[1959] | 206 | |
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| 207 | switch (mes->type) { |
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| 208 | case ROAR_ROARDMX_TYPE_SSET: |
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| 209 | case ROAR_ROARDMX_TYPE_INC8S: |
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| 210 | return mes->length / 3; |
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| 211 | break; |
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| 212 | case ROAR_ROARDMX_TYPE_IPO1: |
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| 213 | return mes->length / 6; |
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| 214 | break; |
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| 215 | case ROAR_ROARDMX_TYPE_IPO4: |
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| 216 | return mes->length / 12; |
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| 217 | break; |
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[5924] | 218 | case ROAR_ROARDMX_TYPE_RANGESET: |
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| 219 | return mes->length / 5; |
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| 220 | break; |
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| 221 | case ROAR_ROARDMX_TYPE_EVENT: |
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| 222 | case ROAR_ROARDMX_TYPE_CONTROL: |
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| 223 | return 0; |
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| 224 | break; |
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[1959] | 225 | } |
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| 226 | |
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[5924] | 227 | roar_err_set(ROAR_ERROR_NSTYPE); |
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[1959] | 228 | return -1; |
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| 229 | } |
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[1950] | 230 | |
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[5924] | 231 | // * SSET: |
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| 232 | int roar_roardmx_message_new_sset (struct roar_roardmx_message * mes) { |
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[5926] | 233 | BCHK(mes); |
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| 234 | |
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[5924] | 235 | if ( roar_roardmx_message_new(mes) == -1 ) |
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| 236 | return -1; |
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| 237 | |
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| 238 | mes->type = ROAR_ROARDMX_TYPE_SSET; |
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| 239 | |
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| 240 | return 0; |
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| 241 | } |
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| 242 | |
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[5926] | 243 | // * IPO1: |
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| 244 | // Not yet supported. |
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| 245 | // * IPO4: |
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| 246 | // Not yet supported. |
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| 247 | // * INC8S: |
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| 248 | // Not yet supported. |
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| 249 | // * RANGESET: |
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| 250 | // Not yet supported. |
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| 251 | // * EVENT: |
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| 252 | int roar_roardmx_message_new_event(struct roar_roardmx_message * mes) { |
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| 253 | BCHK(mes); |
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| 254 | |
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| 255 | if ( roar_roardmx_message_new(mes) == -1 ) |
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| 256 | return -1; |
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| 257 | |
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| 258 | mes->type = ROAR_ROARDMX_TYPE_EVENT; |
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| 259 | |
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| 260 | return 0; |
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| 261 | } |
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| 262 | |
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| 263 | int roar_roardmx_message_add_events(struct roar_roardmx_message * mes, const uint8_t * events, size_t len) { |
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| 264 | BCHK(mes); |
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| 265 | |
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| 266 | if ( mes->type != ROAR_ROARDMX_TYPE_EVENT ) { |
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| 267 | roar_err_set(ROAR_ERROR_TYPEMM); |
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| 268 | return -1; |
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| 269 | } |
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| 270 | |
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| 271 | if ( (mes->length + len) > ROAR_ROARDMX_DATA_LENGTH ) { // message would be to long |
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| 272 | roar_err_set(ROAR_ERROR_NOSPC); |
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| 273 | return -1; |
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| 274 | } |
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| 275 | |
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| 276 | memcpy(mes->data + 3 + mes->length, events, len); |
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| 277 | mes->length += len; |
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| 278 | |
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| 279 | return 0; |
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| 280 | } |
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| 281 | |
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| 282 | int roar_roardmx_message_get_events(struct roar_roardmx_message * mes, const uint8_t ** events, size_t * len) { |
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| 283 | BCHK(mes); |
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| 284 | |
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| 285 | if ( mes->type != ROAR_ROARDMX_TYPE_EVENT ) { |
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| 286 | roar_err_set(ROAR_ERROR_TYPEMM); |
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| 287 | return -1; |
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| 288 | } |
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| 289 | |
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| 290 | *events = (const uint8_t *)(mes->data + 3); |
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| 291 | *len = mes->length; |
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| 292 | |
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| 293 | return 0; |
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| 294 | } |
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| 295 | |
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| 296 | // * CONTROL: |
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| 297 | // Not yet supported. |
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| 298 | |
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[1947] | 299 | //ll |
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