const uint8_t *dmx_is_data_changed(void) {
uint32_t i;
uint8_t const *p = (uint8_t *)dmx_get_available();
uint32_t *src = (uint32_t *)p;
uint32_t *dst = (uint32_t *)dmx_data_previous;
bool is_changed = false;
if (src == NULL) {
return NULL;
}
const struct _dmx_data *dmx_statistics = (struct _dmx_data *)p;
if (dmx_statistics->statistics.slots_in_packet != dmx_slots_in_packet_previous) {
dmx_slots_in_packet_previous = dmx_statistics->statistics.slots_in_packet;
for (i = 0; i < DMX_DATA_BUFFER_SIZE / 4; i++) {
*dst= *src;
dst++;
src++;
}
return p;
}
for (i = 0; i < DMX_DATA_BUFFER_SIZE / 4; i++) {
if (*dst != *src) {
*dst = *src;
is_changed = true;
}
dst++;
src++;
}
return (is_changed ? p : NULL);
}
/**
*
* The function is registered in the poll table \file main.c
*/
void dmx_handle_data(void)
{
dmx_handle_data_statistics.function_count++;
if (dmx_get_available() == FALSE)
return;
dmx_available_set(FALSE);
dmx_handle_data_statistics.dmx_available_count++;
// const uint16_t personality_current = rdm_device_info_get_personality_current(0); // Root device
/*
* Add user code here
*/
}
/**
*
* This function is called from the poll table in \ref main.c
*
* Received DMX Packet (Label=5 \ref RECEIVED_DMX_PACKET)
*
* The Widget sends this message to the PC unsolicited, whenever the Widget receives a DMX or RDM packet from the DMX port,
* and the Receive DMX on Change mode (\ref receive_dmx_on_change) is 'Send always' (\ref SEND_ALWAYS).
*/
void widget_received_dmx_packet(void) {
if (widget_mode == MODE_RDM_SNIFFER) {
return;
}
if (widget_rdm_discovery_running
|| (DMX_PORT_DIRECTION_INP != dmx_get_port_direction())
|| (SEND_ON_DATA_CHANGE_ONLY == receive_dmx_on_change)) {
return;
}
const uint8_t *dmx_data = dmx_get_available();
if (dmx_data == NULL) {
return;
}
const uint32_t micros_now = hardware_micros();
if (micros_now - widget_received_dmx_packet_start < widget_received_dmx_packet_period) {
return;
}
widget_received_dmx_packet_start = micros_now;
widget_received_dmx_packet_count++;
const struct _dmx_data *dmx_statistics = (struct _dmx_data *)dmx_data;
const uint16_t length = (uint16_t)(dmx_statistics->statistics.slots_in_packet + 1);
monitor_line(MONITOR_LINE_LABEL, "poll:RECEIVED_DMX_PACKET");
monitor_line(MONITOR_LINE_INFO, "Send DMX data to HOST, %d", length);
monitor_line(MONITOR_LINE_STATUS, NULL);
widget_usb_send_header(RECEIVED_DMX_PACKET, length + 1);
usb_send_byte(0); // DMX Receive status
widget_usb_send_data(dmx_data, length);
widget_usb_send_footer();
}
