diff options
Diffstat (limited to 'include/linux/if_frad.h')
| -rw-r--r-- | include/linux/if_frad.h | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/include/linux/if_frad.h b/include/linux/if_frad.h new file mode 100644 index 000000000..4316aa173 --- /dev/null +++ b/include/linux/if_frad.h @@ -0,0 +1,97 @@ +/* + * DLCI/FRAD Definitions for Frame Relay Access Devices. DLCI devices are + * created for each DLCI associated with a FRAD. The FRAD driver + * is not truly a network device, but the lower level device + * handler. This allows other FRAD manufacturers to use the DLCI + * code, including its RFC1490 encapsulation alongside the current + * implementation for the Sangoma cards. + * + * Version: @(#)if_ifrad.h 0.15 31 Mar 96 + * + * Author: Mike McLagan <mike.mclagan@linux.org> + * + * Changes: + * 0.15 Mike McLagan changed structure defs (packed) + * re-arranged flags + * added DLCI_RET vars + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ +#ifndef _FRAD_H_ +#define _FRAD_H_ + +#include <uapi/linux/if_frad.h> + + +#if defined(CONFIG_DLCI) || defined(CONFIG_DLCI_MODULE) + +/* these are the fields of an RFC 1490 header */ +struct frhdr +{ + unsigned char control; + + /* for IP packets, this can be the NLPID */ + unsigned char pad; + + unsigned char NLPID; + unsigned char OUI[3]; + __be16 PID; + +#define IP_NLPID pad +} __packed; + +/* see RFC 1490 for the definition of the following */ +#define FRAD_I_UI 0x03 + +#define FRAD_P_PADDING 0x00 +#define FRAD_P_Q933 0x08 +#define FRAD_P_SNAP 0x80 +#define FRAD_P_CLNP 0x81 +#define FRAD_P_IP 0xCC + +struct dlci_local +{ + struct net_device *master; + struct net_device *slave; + struct dlci_conf config; + int configured; + struct list_head list; + + /* callback function */ + void (*receive)(struct sk_buff *skb, struct net_device *); +}; + +struct frad_local +{ + struct net_device_stats stats; + + /* devices which this FRAD is slaved to */ + struct net_device *master[CONFIG_DLCI_MAX]; + short dlci[CONFIG_DLCI_MAX]; + + struct frad_conf config; + int configured; /* has this device been configured */ + int initialized; /* mem_start, port, irq set ? */ + + /* callback functions */ + int (*activate)(struct net_device *, struct net_device *); + int (*deactivate)(struct net_device *, struct net_device *); + int (*assoc)(struct net_device *, struct net_device *); + int (*deassoc)(struct net_device *, struct net_device *); + int (*dlci_conf)(struct net_device *, struct net_device *, int get); + + /* fields that are used by the Sangoma SDLA cards */ + struct timer_list timer; + int type; /* adapter type */ + int state; /* state of the S502/8 control latch */ + int buffer; /* current buffer for S508 firmware */ +}; + +#endif /* CONFIG_DLCI || CONFIG_DLCI_MODULE */ + +extern void dlci_ioctl_set(int (*hook)(unsigned int, void __user *)); + +#endif |