Changeset 1950:1ae5ccbd2fd2 in roaraudio for libroarlight

Timestamp:

06/08/09 18:46:06 (15 years ago)

Author:

phi

Branch:

default

Phase:

public

Message:

wrote some basic functions

File:

• libroarlight/roardmx.c (modified) (1 diff)

libroarlight/roardmx.c

@@ -25 +25 @@
 #include "libroarlight.h"
 
+// base(ic) check
+#define BCHK(x) if ( (x) == NULL ) return -1
+
+int roar_roardmx_message_new (struct roar_roardmx_message * mes) {
+ BCHK(mes);
+
+ memset(mes, 0, sizeof(struct roar_roardmx_message));
+
+ mes->version = ROAR_ROARDMX_VERSION;
+
+ return 0;
+}
+
+// low level:
+//int roar_roardmx_message_set_flag(struct roar_roardmx_message * mes, unsigned char   flag);
+//int roar_roardmx_message_set_len (struct roar_roardmx_message * mes, size_t          type);
+//int roar_roardmx_message_get_data(struct roar_roardmx_message * mes, unsigned char ** data);
+
+// mdium level:
+int roar_roardmx_message_set_type(struct roar_roardmx_message * mes, unsigned char   type) {
+ BCHK(mes);
+
+ if ( (type | ROAR_ROARDMX_MASK_TYPE) - ROAR_ROARDMX_MASK_TYPE )
+  return -1;
+
+ mes->type = type;
+
+ return 0;
+}
+
+int roar_roardmx_message_get_flag(struct roar_roardmx_message * mes, unsigned char * flag) {
+ BCHK(mes);
+
+ *flag = mes->flags;
+
+ return 0;
+}
+
+int roar_roardmx_message_get_type(struct roar_roardmx_message * mes, unsigned char * type) {
+ BCHK(mes);
+
+ *type = mes->type;
+
+ return 0;
+}
+
+int roar_roardmx_message_get_len (struct roar_roardmx_message * mes, size_t        * length) {
+ BCHK(mes);
+
+ *length = mes->length;
+
+ return 0;
+}
+
+
+// IO:
+int roar_roardmx_message_send(struct roar_roardmx_message * mes, struct roar_vio_calls * vio);
+int roar_roardmx_message_recv(struct roar_roardmx_message * mes, struct roar_vio_calls * vio);
+
+// Data/high level:
+// * SSET:
+int roar_roardmx_message_new_sset   (struct roar_roardmx_message * mes) {
+ if ( roar_roardmx_message_new(mes) == -1 )
+  return -1;
+
+ mes->type = ROAR_ROARDMX_TYPE_SSET;
+
+ return 0;
+}
+
+int roar_roardmx_message_add_chanval(struct roar_roardmx_message * mes, uint16_t channel, unsigned char val) {
+ uint16_t * chan;
+
+ BCHK(mes);
+
+ if ( (mes->length + 3) > ROAR_ROARDMX_DATA_LENGTH ) // message would be to long
+  return -1;
+
+ chan = (uint16_t *) &(mes->data[mes->length]);
+
+ *chan = ROAR_HOST2NET16(channel);
+
+ mes->data[mes->length + 2] = val;
+
+ mes->length += 3;
+
+ return 0;
+}
+
+
 //ll