/** \brief Ereignisse mit niedriger Prioritaet abarbeiten. */
static void handle_events(void)
{
morse_sym_t captured[CAPTURE_BUF_SIZE];
uint8_t nr_captured = 0, nr_decoded;
bool capture_error;
bool had_async_lcd_update;
/* Cleartaster abfragen. */
handle_clear_button();
/* Empfangene Symbole in temporaeren lokalen Puffer kopieren
* und Interrupts so schnell wie moeglich wieder freigeben. */
irq_disable();
if (capture.nr_captured) {
nr_captured = capture.nr_captured;
capture.nr_captured = 0;
memcpy(captured, capture.captured,
nr_captured * sizeof(captured[0]));
}
capture_error = capture.capture_error;
capture.capture_error = 0;
irq_enable();
/* Empfangene Symbole dekodieren und in LCD Puffer uebertragen. */
nr_decoded = decode_symbols(captured, nr_captured,
capture_error);
/* Asynchrones LCD-update Flag abfragen und ruecksetzen. */
irq_disable();
had_async_lcd_update = machine.async_lcd_update;
machine.async_lcd_update = 0;
irq_enable();
/* LCD auffrischen, wenn neue Symbole decodiert wurden,
* oder ein asynchrones LCD Update angefordert wurde. */
if (nr_decoded || had_async_lcd_update)
update_lcd();
}
/* tbc_decode:
* If ptr is NULL then this uses in place decoding,
* otherwise fills out the structure pointered to.
* When not using in place decoding the structure should be
* initialised with zeros. tlp elements will be decoded if
* tbc->tlp is not NULL.
*/
int tbc_decode (BYTE *data, unsigned int length, tbc_t **ptr)
{
tenc_element_t element;
tbc_t *tbc;
int in_place;
int ret;
if (*ptr != NULL) {
tbc = *ptr;
in_place = 0;
} else {
tbc = (tbc_t *) data;
in_place = 1;
}
/* Decode the required elements */
if ((ret = load_uint (&data, &length, "endU", &(tbc->endian))) < 0)
return ret;
if ((ret = load_uint (&data, &length, "ws U", &(tbc->ws))) < 0)
return ret;
if ((ret = load_uint (&data, &length, "vs U", &(tbc->vs))) < 0)
return ret;
if ((ret = tenc_walk_to_element (data, &length, "bc B", &element)) < 0)
return ret;
tbc->bytecode_len = element.length;
tbc->bytecode = element.data.bytes;
data = element.next;
/* Decode optional elements */
if (in_place) {
tbc->tlp = NULL;
tbc->symbols = NULL;
tbc->ffi = NULL;
tbc->debug = NULL;
} else {
if (tbc->tlp != NULL) {
tbc->tlp->fmt = NULL;
tbc->tlp->symbol = NULL;
}
}
/* Copy pointer */
*ptr = tbc;
while (length > 0) {
if (tenc_decode_element (data, &length, &element) < 0)
return 0; /* ignore errors */
if (ids_match (element.id, "tlpL")) {
tbc->tlp = decode_tlp (data, tbc->tlp, &element);
} else if (in_place && ids_match (element.id, "ffiL")) {
tbc->ffi = decode_ffi (data, &element);
} else if (in_place && ids_match (element.id, "stbL")) {
tbc->symbols = decode_symbols (&element);
} else if (in_place && ids_match (element.id, "dbgL")) {
tbc->debug = decode_debug (data, &element);
}
data = element.next;
}
return 0;
}
