/* Choose in order: * (first) 0x81 * (first) 0x01 * first other family * 0x00 * */ GOOD_OR_BAD DS9490_ID_this_master(struct connection_in *in) { struct dirblob db ; BYTE sn[SERIAL_NUMBER_SIZE] ; int device_number ; RETURN_BAD_IF_BAD( DS9490_root_dir( &db, in ) ) ; // Use 0x00 if no devices (homegrown adapters?) if ( DirblobElements( &db) == 0 ) { DirblobClear( &db ) ; memset( in->master.usb.ds1420_address, 0, SERIAL_NUMBER_SIZE ) ; LEVEL_DEFAULT("Set DS9490 %s unique id 0x00 (no devices at all)", SAFESTRING(DEVICENAME(in))) ; return gbGOOD ; } // look for the special 0x81 device device_number = 0 ; while ( DirblobGet( device_number, sn, &db ) == 0 ) { if (sn[0] == 0x81) { // 0x81 family code memcpy(in->master.usb.ds1420_address, sn, SERIAL_NUMBER_SIZE); LEVEL_DEFAULT("Set DS9490 %s unique id to " SNformat, SAFESTRING(DEVICENAME(in)), SNvar(in->master.usb.ds1420_address)); DirblobClear( &db ) ; return gbGOOD ; } ++device_number ; } // look for the (less specific, for older DS9490s) 0x01 device device_number = 0 ; while ( DirblobGet( device_number, sn, &db ) == 0 ) { if (sn[0] == 0x01) { // 0x01 family code memcpy(in->master.usb.ds1420_address, sn, SERIAL_NUMBER_SIZE); LEVEL_DEFAULT("Set DS9490 %s unique id to " SNformat, SAFESTRING(DEVICENAME(in)), SNvar(in->master.usb.ds1420_address)); DirblobClear( &db ) ; return gbGOOD ; } ++device_number ; } // Take the first device, whatever it is DirblobGet( 0, sn, &db ) ; memcpy(in->master.usb.ds1420_address, sn, SERIAL_NUMBER_SIZE); LEVEL_DEFAULT("Set DS9490 %s unique id to " SNformat, SAFESTRING(DEVICENAME(in)), SNvar(in->master.usb.ds1420_address)); DirblobClear( &db ) ; return gbGOOD; }
/* Open a DS9490 -- low level code (to allow for repeats) */ static GOOD_OR_BAD DS9490_redetect_match( struct connection_in * in) { struct dirblob db ; BYTE sn[SERIAL_NUMBER_SIZE] ; int device_number ; LEVEL_DEBUG("Attempting reconnect on %s",SAFESTRING(DEVICENAME(in))); // Special case -- originally untagged adapter if ( in->master.usb.ds1420_address[0] == '\0' ) { LEVEL_CONNECT("Since originally untagged bus master, we will use first available slot."); return gbGOOD ; } // Generate a root directory RETURN_BAD_IF_BAD( DS9490_root_dir( &db, in ) ) ; // This adapter has no tags, so not the one we want if ( DirblobElements( &db) == 0 ) { DirblobClear( &db ) ; LEVEL_DATA("Empty directory on [%s] (Doesn't match initial scan).", SAFESTRING(DEVICENAME(in))); return gbBAD ; } // Scan directory for a match to the original tag device_number = 0 ; while ( DirblobGet( device_number, sn, &db ) == 0 ) { if (memcmp(sn, in->master.usb.ds1420_address, SERIAL_NUMBER_SIZE) == 0) { // same tag device? LEVEL_DATA("Matching device [%s].", SAFESTRING(DEVICENAME(in))); DirblobClear( &db ) ; return gbGOOD ; } ++device_number ; } // Couldn't find correct ds1420 chip on this adapter LEVEL_CONNECT("Couldn't find correct ds1420 chip on this bus master [%s] (want: " SNformat ")", SAFESTRING(DEVICENAME(in)), SNvar(in->master.usb.ds1420_address)); DirblobClear( &db ) ; return gbBAD; }