static int
dump_port_info(int argc, char** argv)
{
ConditionVariable* condition = NULL;
const char* name = NULL;
if (argc < 2) {
print_debugger_command_usage(argv[0]);
return 0;
}
if (argc > 2) {
if (!strcmp(argv[1], "address")) {
_dump_port_info((struct port_entry*)parse_expression(argv[2]));
return 0;
} else if (!strcmp(argv[1], "condition"))
condition = (ConditionVariable*)parse_expression(argv[2]);
else if (!strcmp(argv[1], "name"))
name = argv[2];
} else if (parse_expression(argv[1]) > 0) {
// if the argument looks like a number, treat it as such
int32 num = parse_expression(argv[1]);
int32 slot = num % sMaxPorts;
if (sPorts[slot].id != num) {
kprintf("port %ld (%#lx) doesn't exist!\n", num, num);
return 0;
}
_dump_port_info(&sPorts[slot]);
return 0;
} else
name = argv[1];
// walk through the ports list, trying to match name
for (int32 i = 0; i < sMaxPorts; i++) {
if ((name != NULL && sPorts[i].lock.name != NULL
&& !strcmp(name, sPorts[i].lock.name))
|| (condition != NULL && (&sPorts[i].read_condition == condition
|| &sPorts[i].write_condition == condition))) {
_dump_port_info(&sPorts[i]);
return 0;
}
}
return 0;
}
static void dump_port_info(int argc, char **argv)
{
int i;
if(argc < 2) {
dprintf("port: not enough arguments\n");
return;
}
// if the argument looks like a hex number, treat it as such
if(strlen(argv[1]) > 2 && argv[1][0] == '0' && argv[1][1] == 'x') {
unsigned long num = atoul(argv[1]);
if(is_kernel_address(num)) {
// XXX semi-hack
// one can use either address or a port_id, since KERNEL_BASE > MAX_PORTS assumed
_dump_port_info((struct port_entry *)num);
return;
} else {
unsigned slot = num % MAX_PORTS;
if(ports[slot].id != (int)num) {
dprintf("port 0x%lx doesn't exist!\n", num);
return;
}
_dump_port_info(&ports[slot]);
return;
}
}
// walk through the ports list, trying to match name
for(i=0; i<MAX_PORTS; i++) {
if (ports[i].name != NULL)
if(strcmp(argv[1], ports[i].name) == 0) {
_dump_port_info(&ports[i]);
return;
}
}
}
