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/* Copyright (c) 1993 NeXT Computer, Inc. All rights reserved.
*
* IOTokenRing.h - TokenRing device-independent superclass
*
* The TokenRing superclass contains the device-independent functions
* that are common to most token-ring drivers. The hardware-specific
* driver should be a subclass of IOTokenRing.
*
* HISTORY
* 25-Jan-93
* created
*
*/
#ifdef KERNEL
#import <driverkit/IODirectDevice.h>
#import <driverkit/IONetwork.h>
#import <kernserv/ns_timer.h>
#import <net/tokendefs.h>
@interface IOTokenRing:IODirectDevice<IONetworkDeviceMethods>
{
@private
/*
* Interface flags
*/
struct _trFlags {
unsigned int _isRunning:1; /* operational or not*/
unsigned int _isEarlyTokenEnabled:1; /* early token on/off*/
unsigned int _shouldAutoRecover:1; /* auto recovery on/off*/
unsigned int _shouldAttachIP:1; /* tr to ip iface*/
unsigned int _shouldAttachNullSap:1; /* null sap iface*/
unsigned int _doesIPSourceRouting:1; /* ip 802.5 src rtng*/
unsigned int RESERVED:10;
} _flags;
/*
* Interface parameters
*/
unsigned _ringSpeed; /* ring speed (4 or 16)*/
unsigned _ipTokenPriority; /* IP token priority*/
unsigned _ipMtu; /* IP max tran unit for tring*/
unsigned _maxInfoFieldSize; /* MAC-layer info field max*/
/*
* Hardware addresses
*/
token_addr_t _nodeAddress; /* our Node address*/
token_addr_t _groupAddress; /* not supported*/
token_addr_t _functionalAddress; /* not supported*/
/*
* Other instance variables
*/
IONetwork *_netif;
id _driverCmd;
ns_time_t _absTimeout;
id _hwLock; /* NXSpinLock; protects access to hdw*/
int _IOTokenRing_reserved[4];
}
- initFromDeviceDescription:(IODeviceDescription *)devDesc;
- free;
- (BOOL)isRunning;
- (void)setRunning:(BOOL)running;
- (unsigned int)relativeTimeout;
- (void)setRelativeTimeout:(unsigned int)timeout;
- (void)clearTimeout;
- (BOOL)earlyTokenEnabled; /* defined in Instance.table*/
- (BOOL)shouldAutoRecover; /* defined in Instance.table*/
- (unsigned)ringSpeed; /* defined in Instance.table*/
- (unsigned)maxInfoFieldSize; /* based on ring speed, but may*/
- (void)setMaxInfoFieldSize:(unsigned)size; /* also be hardware dependent*/
/*
* Hardware Addresses
*/
- (token_addr_t)nodeAddress; /* our Node address*/
@end
@interface IOTokenRing(DriverInterface)
- (BOOL)resetAndEnable:(BOOL)enable;
- (IONetwork *)attachToNetworkWithAddress:(token_addr_t)addrs;
/*
* NOTE: Use of the transmit: method may be undesirable in cases
* where it forces buffer copying, or precludes a subclass
* buffer management scheme. In those cases it is preferable
* to override the outputPacket:address: method (and perhaps the
* allocateNetbuf method). If the outputPacket:address: method is
* overridden, then no transmit method is required.
*/
- (void)transmit:(netbuf_t)pkt;
@end
#endif
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.