function dmx_request_parameters(&$read_buffer) { $data = ''; dmx_write(CMD_GET_PARAMETERS, 0, $data); usleep(5000); while (dmx_read($read_buffer)) { } if ($x = dmx_get_next_packet($read_buffer)) { if (substr($x, 0, 2) == chr(DMX_START_BYTE) . chr(RX_GET_PARAMETERS)) { $config['FW_VER'] = sprintf("V%d.%d", ord(substr($x, 5, 1)), ord(substr($x, 4, 1))); $config['DMX_BR_TIME'] = ord(substr($x, 6, 1)); $config['DMX_MABR_TIME'] = ord(substr($x, 7, 1)); $config['DMX_OUTPUT_RATE'] = ord(substr($x, 8, 1)); $config['CONFIG_DATA'] = substr($x, 9, -2); return $config; } } return 0; }
logformat(sprintf("Firmware Version: %s\n", $fw['FW_VER'])); logformat(sprintf("DMX Output Break Time: %s x 10.67 = %.02f us\n", $fw['DMX_BR_TIME'], $fw['DMX_BR_TIME'] * 10.67)); logformat(sprintf("DMX Mark After Break Time: %s x 10.67 = %.02f us\n", $fw['DMX_MABR_TIME'], $fw['DMX_MABR_TIME'] * 10.67)); logformat(sprintf("DMX Output Rate: %s packets/sec\n", $fw['DMX_OUTPUT_RATE'])); logformat(sprintf("DMX Config Data: %s\n", $fw['CONFIG_DATA'])); $dmx_input = bcd_to_chr($dmx_inputs); $dmx_output1 = bcd_to_chr($dmx_outputs1); $dmx_output2 = bcd_to_chr($dmx_outputs2); dmx_set_levels_U1($dmx_output1); dmx_set_levels_U2($dmx_output2); dmx_set_dmx_receive_mode(SEND_ON_CHANGE_ONLY); while (1) { if ($must_exit) { break; } if (dmx_read($read_buffer)) { //got some input from the interface while ($packet = dmx_get_next_packet($read_buffer)) { $di = ''; if ($p = dmx_get_dmx_change_data($packet, $dmx_input)) { if ($debug & DMX_DEBUG_ID) { logformat(sprintf("DMX Received: %s\n", hex_display($dmx_input))); } $di = chr_to_bcd($dmx_input); dmx_write_shared_memory($shm_id, $di, 0, 0); //send xap event(s) for ($i = 0; $i < 128; $i++) { if (substr($di, $i * 2, 2) != substr($dmx_inputs, $i * 2, 2)) { send_dmx_input_level_event_message($i, $di); } }