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/*
* include/net/ax25dev.h
*
* intra-kernel interface declaration, anything needed by device drivers for
* AX.25 interfaces is defined here.
*
*/
#ifndef _NET_AX25DEV_H
#define _NET_AX25DEV_H
#include <linux/netdevice.h>
#include <linux/sysctl.h>
#include <linux/tqueue.h>
#include <linux/timer.h>
#ifndef AX25_TICS
#define AX25_TICS (HZ/10)
#endif
#define AX25_MAX_DEVICES 20 /* Max No of AX.25 devices */
#define AX25_DEV_MAGIC 0x88babe73
enum {
AX25_VALUES_IPDEFMODE, /* 0=DG 1=VC */
AX25_VALUES_AXDEFMODE, /* 0=Normal 1=Extended Seq Nos */
AX25_VALUES_BACKOFF, /* 0=None 1=Linear 2=Exponential */
AX25_VALUES_CONMODE, /* Allow connected modes - 0=No 1=no "PID text" 2=all PIDs */
AX25_VALUES_WINDOW, /* Default window size for standard AX.25 */
AX25_VALUES_EWINDOW, /* Default window size for extended AX.25 */
AX25_VALUES_T1, /* Default T1 timeout value */
AX25_VALUES_T2, /* Default T2 timeout value */
AX25_VALUES_T3, /* Default T3 timeout value */
AX25_VALUES_IDLE, /* Connected mode idle timer */
AX25_VALUES_N2, /* Default N2 value */
AX25_VALUES_PACLEN, /* AX.25 MTU */
AX25_VALUES_PROTOCOL, /* What is this? */
AX25_VALUES_DAMA_SLAVE_TIMEOUT, /* DAMA */
AX25_VALUES_MEDIA_DUPLEX, /* Duplex type */
AX25_VALUES_MEDIA_TXDELAY, /* TX-Delay */
AX25_VALUES_MEDIA_TXTAIL, /* TX-Tail */
AX25_VALUES_MEDIA_TXBITRATE, /* TX-Bitrate */
AX25_VALUES_MEDIA_RXBITRATE, /* RX-Bitrate */
AX25_VALUES_MEDIA_SLOTTIME, /* Slottime */
AX25_VALUES_MEDIA_PPERSISTENCE, /* P-Persistence */
AX25_VALUES_MEDIA_AUTO_ADJUST, /* Enable/disable auto adjustment */
AX25_VALUES_DUMMY_0, /* For future use */
AX25_VALUES_DUMMY_1, /* For future use */
AX25_VALUES_DUMMY_2, /* For future use */
AX25_VALUES_DUMMY_3, /* For future use */
AX25_VALUES_DUMMY_4, /* For future use */
AX25_VALUES_DUMMY_5, /* For future use */
AX25_VALUES_DUMMY_6, /* For future use */
AX25_VALUES_DUMMY_7, /* For future use */
AX25_MAX_VALUES /* THIS MUST REMAIN THE LAST ENTRY OF THIS LIST */
};
#define AX25_DEF_IPDEFMODE 1 /* VC */
#define AX25_DEF_AXDEFMODE 0 /* Normal */
#define AX25_DEF_BACKOFF 1 /* Linear backoff */
#define AX25_DEF_CONMODE 2 /* Connected mode allowed */
#define AX25_DEF_WINDOW 7 /* Window=7 */
#define AX25_DEF_EWINDOW 32 /* Module-128 Window=32 */
#define AX25_DEF_T1 (10 * AX25_SLOWHZ) /* T1=10s */
#define AX25_DEF_T2 (3 * AX25_SLOWHZ) /* T2=3s */
#define AX25_DEF_T3 (90 * AX25_SLOWHZ) /* T3=90s */
#define AX25_DEF_N2 10 /* N2=10 */
#define AX25_DEF_IDLE (120 * AX25_SLOWHZ) /* Idle=120s */
#define AX25_DEF_PACLEN 256 /* Paclen=256 */
#define AX25_DEF_PROTOCOL 1 /* 0=CSMA; 1=CSMA/DAMA slave auto; 2=DAMA master */
#define AX25_DEF_DAMA_SLAVE_TIMEOUT 0 /* ? */
#define AX25_DEF_MEDIA_DUPLEX 0 /* Half duplex */
#define AX25_DEF_MEDIA_TXDELAY 60 /* 60 ms */
#define AX25_DEF_MEDIA_TXTAIL 10 /* 10 ms */
#define AX25_DEF_MEDIA_TXBITRATE 9600 /* 9600 bps */
#define AX25_DEF_MEDIA_RXBITRATE 9600 /* 9600 bps */
#define AX25_DEF_MEDIA_SLOTTIME 10 /* 10 ms */
#define AX25_DEF_MEDIA_PPERSISTENCE 32 /* 32/256 */
#define AX25_DEF_MEDIA_AUTO_ADJUST 1 /* Auto adjust on */
struct ax25_dev {
unsigned long magic;
struct net_device *netdev; /* backlink to the network device */
struct net_device *forward;
struct timer_list timer;
struct timer_list tics;
struct tq_struct task_queue;
struct sk_buff_head unproto_queue;
int needs_transmit;
unsigned int dama_mode;
struct {
struct ax25_cb *ready;
struct ax25_cb *all;
} list;
struct {
unsigned char fast; /*
* set for "infinitely"
* fast channels to skip
* arbitration
*/
/* downcalls */
unsigned int (*dcd)(struct net_device *dev); /* required: report dcd state */
unsigned int (*ptt)(struct net_device *dev); /* required: report ptt state */
unsigned int (*cts)(struct net_device *dev); /* optional: report "clear to send" */
void (*rts)(struct net_device *dev); /* optional: forced "key transmitter" */
void (*parameter_change_notify)( /* configure media parameter */
struct net_device *dev,
int id, /* parameter type */
int old, /* old value */
int new); /* new value */
} hw;
struct ctl_table systable[AX25_MAX_VALUES+1];
int values[AX25_MAX_VALUES];
/* handled by DDI layer */
unsigned int bit_per_jiffie; /* internal use */
unsigned int jiffies_per_slot; /* internal use */
unsigned char dcd_memory; /* internal use */
unsigned char dcd_dropped; /* internal use */
unsigned char dama_polled; /* internal use */
unsigned int bytes_sent;
unsigned int max_bytes;
/* statistics */
unsigned long tx_iframes;
unsigned long rx_iframes;
unsigned long tx_bytes;
unsigned long rx_bytes;
unsigned long rx_rejects;
rwlock_t ready_lock;
};
#define DAMA_SLAVE (1<<0)
#define DAMA_MASTER (1<<1)
#define AX25_PTR(dev) ((struct ax25_dev *)dev->ax25_ptr)
extern void register_ax25device(struct net_device *dev);
extern void unregister_ax25device(struct net_device *dev);
/*
* Call this function from device driver code for reading a parameter
*/
extern inline int ax25_dev_get_value(struct net_device *dev, int valueno)
{
struct ax25_dev *ax25_device = AX25_PTR(dev);
return ax25_device->values[valueno];
}
/*
* Call this function from device driver code for writing a parameter
*/
extern inline void ax25_dev_set_value(struct net_device *dev, int valueno, int newvalue)
{
struct ax25_dev *ax25_device = AX25_PTR(dev);
ax25_device->values[valueno] = newvalue;
}
#endif /* _NET_AX25DEV_H */
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