/* return 0 if good, 1 if not */
GOOD_OR_BAD Cache_Add_Dir(const struct dirblob *db, const struct parsedname *pn)
{
time_t duration = TimeOut(fc_directory);
struct tree_node *tn;
size_t size = DirblobElements(db) * SERIAL_NUMBER_SIZE;
struct parsedname pn_directory;
if (pn==NO_PARSEDNAME || pn->selected_connection==NO_CONNECTION) {
return gbGOOD; // do check here to avoid needless processing
}
switch ( get_busmode(pn->selected_connection) ) {
case bus_fake:
case bus_tester:
case bus_mock:
case bus_w1:
case bus_bad:
case bus_unknown:
return gbGOOD ;
default:
break ;
}
if (duration <= 0) {
return 0; /* in case timeout set to 0 */
}
if ( DirblobElements(db) < 1 ) {
// only cache long directories.
// zero (or one?) entry is possibly an error and needs to be repeated more quickly
LEVEL_DEBUG("Won\'t cache empty directory");
Cache_Del_Dir( pn ) ;
return gbGOOD ;
}
// allocate space for the node and data
tn = (struct tree_node *) owmalloc(sizeof(struct tree_node) + size);
if (!tn) {
return gbBAD;
}
LEVEL_DEBUG("Adding directory for " SNformat " elements=%d", SNvar(pn->sn), DirblobElements(db));
// populate node with directory name and dirblob
FS_LoadDirectoryOnly(&pn_directory, pn);
LoadTK( pn_directory.sn, Directory_Marker, pn->selected_connection->index, tn );
tn->expires = duration + NOW_TIME;
tn->dsize = size;
if (size) {
memcpy(TREE_DATA(tn), db->snlist, size);
}
return Add_Stat(&cache_dir, Cache_Add_Common(tn));
}
/* 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;
}
static void GetAllDeviceNames( struct port_in * pin )
{
struct connection_in * in = pin->first ;
ASCII * remaining_device_list = owstrdup( pin->init_data ) ;
ASCII * remember_location = remaining_device_list ;
while (remaining_device_list != NULL) {
const ASCII *current_device_start;
for (current_device_start = strsep(&remaining_device_list, " ,"); current_device_start[0] != '\0'; ++current_device_start) {
// note that strsep updates "remaining_device_list" pointer
if (current_device_start[0] != ' ' && current_device_start[0] != ',') {
break;
}
}
GetDeviceName( ¤t_device_start, in ) ;
}
SAFEFREE( remember_location ) ;
in->AnyDevices = (DirblobElements(&(in->master.fake.main)) > 0) ? anydevices_yes : anydevices_no ;
}
static void GetDeviceName(const ASCII ** strpointer, struct connection_in * in)
{
BYTE sn[SERIAL_NUMBER_SIZE] ;
BYTE dn[SERIAL_NUMBER_SIZE] ;
if ( isxdigit((*strpointer)[0]) && isxdigit((*strpointer)[1]) ) {
// family code specified
sn[0] = string2num(*strpointer);
*strpointer += 2;
GetDefaultDeviceName( dn, sn, in ) ;
// Choice of default or specified ID
GetNextByte(strpointer,dn[1],&sn[1]);
GetNextByte(strpointer,dn[2],&sn[2]);
GetNextByte(strpointer,dn[3],&sn[3]);
GetNextByte(strpointer,dn[4],&sn[4]);
GetNextByte(strpointer,dn[5],&sn[5]);
GetNextByte(strpointer,dn[6],&sn[6]);
} else {
const ASCII * name_to_familycode = namefind((*strpointer)) ;
if ( name_to_familycode != NULL) {
// device name specified (e.g. DS2401)
sn[0] = string2num(name_to_familycode);
GetDefaultDeviceName( dn, sn, in ) ;
sn[1] = dn[1] ;
sn[2] = dn[2] ;
sn[3] = dn[3] ;
sn[4] = dn[4] ;
sn[5] = dn[5] ;
sn[6] = dn[6] ;
} else {
// Bad device name
LEVEL_DEFAULT("Device %d <%s> not recognized for %s %d -- ignored",DirblobElements(&(in->master.fake.main))+1,*strpointer,in->adapter_name,in->master.fake.index);
return ;
}
}
sn[SERIAL_NUMBER_SIZE-1] = CRC8compute(sn, SERIAL_NUMBER_SIZE-1, 0);
DirblobAdd(sn, &(in->master.fake.main)); // Ignore bad return
}
/* 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;
}
