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