VOID unregister_client
(
INT32 cli_id
)
{
p_atheros_dev dev;
printk("DK::Unregsitering client %d \n",cli_id);
dev = &dev_table[cli_id];
if (!VALID_CLIENT(dev)) {
printk("DK::unregister_client:Invalid client \n");
return;
}
if (!BUSY_CLIENT(dev)) {
printk("DK::unregister_client:Client not registered \n");
return;
}
reset_device(dev->cli_id);
deleteEventQueue(&dev->isr_event_q);
deleteEventQueue(&dev->trigered_event_q);
#if defined(OWL_PB42) || defined(PYTHON_EMU)
bus_dev_exit(dev->bus_dev);
#endif
dev->dev_busy = 0;
return;
}
/*
* This is a pretty expensive routine -- it loops through all the fd's,
* and finds the active clients (and servers and opers) and places them
* on the "busy client" list
*/
void check_fdlists()
{
#ifdef CLIENT_SERVER
#define BUSY_CLIENT(x) (((x)->priority < 55) || (!lifesux && ((x)->priority < 75)))
#else
#define BUSY_CLIENT(x) (((x)->priority < 40) || (!lifesux && ((x)->priority < 60)))
#endif
#define FDLISTCHKFREQ 2
aClient *cptr;
int i, j;
j = 0;
for (i = highest_fd; i >= 0; i--)
{
if (!(cptr = local[i]))
continue;
if (IsServer(cptr) || IsListening(cptr) || IsOper(cptr))
{
busycli_fdlist.entry[++j] = i;
continue;
}
if (cptr->receiveM == cptr->lastrecvM)
{
cptr->priority += 2; /* lower a bit */
if (cptr->priority > 90)
cptr->priority = 90;
else if (BUSY_CLIENT(cptr))
busycli_fdlist.entry[++j] = i;
continue;
}
else
{
cptr->lastrecvM = cptr->receiveM;
cptr->priority -= 30; /* active client */
if (cptr->priority < 0)
{
cptr->priority = 0;
busycli_fdlist.entry[++j] = i;
}
else if (BUSY_CLIENT(cptr))
busycli_fdlist.entry[++j] = i;
}
}
busycli_fdlist.last_entry = j; /* rest of the fdlist is garbage */
/* return (now + FDLISTCHKFREQ + (lifesux + 1)); */
}
/*
* This is a pretty expensive routine -- it loops through
* all the fd's, and finds the active clients (and servers
* and opers) and places them on the "busy client" list
*/
void fdlist_check(time_t now)
{
struct Client* cptr;
int i;
for (i = highest_fd; i >= 0; --i)
{
if (!(cptr = local[i]))
continue;
if (IsServer(cptr) || IsAnOper(cptr))
continue;
GlobalFDList[i] &= ~FDL_BUSY;
if (cptr->receiveM == cptr->lastrecvM)
{
cptr->priority += 2; /* lower a bit */
if (90 < cptr->priority)
cptr->priority = 90;
else if (BUSY_CLIENT(cptr))
{
GlobalFDList[i] |= FDL_BUSY;
}
continue;
}
else
{
cptr->lastrecvM = cptr->receiveM;
cptr->priority -= 30; /* active client */
if (cptr->priority < 0)
{
cptr->priority = 0;
GlobalFDList[i] |= FDL_BUSY;
}
else if (BUSY_CLIENT(cptr))
{
GlobalFDList[i] |= FDL_BUSY;
}
}
}
}
INT32 register_client
(
INT32 major,
INT32 minor
)
{
INT32 cli_id;
p_atheros_dev dev;
#if defined(OWL_PB42) || defined(PYTHON_EMU)
UINT32 vendor_id;
#endif
/* get the client for this device */
cli_id = get_client_id(major, minor);
if (cli_id == INVALID_CLIENT) {
printk("DK::register_client:Device not found \n");
return -ENODEV;
}
printk("DK::Regsitering client %d \n",cli_id);
dev = &dev_table[cli_id];
if (!VALID_CLIENT(dev)) {
printk("DK::register_client:Invalid client \n");
return -ENODEV;
}
if (BUSY_CLIENT(dev)) {
printk("DK::register_client:Client alreay in use \n");
return -EACCES;
}
#if !defined (P1020)
// check whether the device is present
// by reading the vendor id
#if defined(OWL_PB42) || defined(PYTHON_EMU)
#ifdef WASP_OSPREY
if(cli_id!=0){ // For DBDC operation, Wasp radio's client ID is zero;
#endif
cli_cfg_read(cli_id,0,4,&vendor_id);
if ((vendor_id & 0xffff) != ATHEROS_VENDOR_ID) {
printk("DK::Device not present \n");
return -ENODEV;
}
#ifdef WASP_OSPREY
}
#endif
#ifndef PYTHON_EMU
if (bus_dev_init(dev->bus_dev) < 0) {
printk("DK::register_client:Cannot initialize client \n");
return -EACCES;
}
#endif
#endif
#endif
initEventQueue(&dev->isr_event_q);
initEventQueue(&dev->trigered_event_q);
reset_device(cli_id);
dev->dev_busy = 1;
return dev->cli_id;
}
