49 lines
1.2 KiB
C
49 lines
1.2 KiB
C
#include <assert.h>
|
|
#include <sys/time.h>
|
|
#include <linux/capi.h>
|
|
#include <capi20.h>
|
|
|
|
#include "contr.h"
|
|
#include "id.h"
|
|
|
|
/*
|
|
* GetNumController: Returns the number of controllers detected by CAPI
|
|
*/
|
|
unsigned GetNumController(void) {
|
|
unsigned short Buffer;
|
|
|
|
/* retrieve the number of installed controllers */
|
|
CAPI20_GET_PROFILE (0, (unsigned char *)&Buffer);
|
|
return Buffer;
|
|
}
|
|
|
|
/*
|
|
* GetNumOfSupportedBChannels: Returns the number of supported B-channels
|
|
* for the specified controller
|
|
*/
|
|
unsigned GetNumOfSupportedBChannels (long Controller) {
|
|
unsigned short Buffer[64 / sizeof (unsigned short)];
|
|
|
|
assert (Controller != INVAL_CONTROLLER);
|
|
/* retrieve controller specific information */
|
|
CAPI20_GET_PROFILE((unsigned)Controller, (unsigned char *)Buffer);
|
|
return (unsigned)Buffer[1];
|
|
}
|
|
|
|
/*
|
|
* GetFreeController: Returns the number of the first controller that has
|
|
* one free B-channel, or INVAL_CONTROLLER if none found.
|
|
*/
|
|
long GetFreeController(void) {
|
|
long Controller;
|
|
int numController;
|
|
|
|
numController = GetNumController ();
|
|
for (Controller = 1; Controller <= numController; Controller++) {
|
|
if (GetNumOfSupportedBChannels (Controller) > GetNumberOfConnections (Controller)) {
|
|
return Controller;
|
|
}
|
|
}
|
|
return INVAL_CONTROLLER;
|
|
}
|