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/**************************************************************************** * Defines for the Multi-KISS driver. ****************************************************************************/ #define AX25_MAXDEV 16 /* MAX number of AX25 channels; This can be overridden with insmod -oax25_maxdev=nnn */ #define AX_MTU 236 /* SLIP/KISS protocol characters. */ #define END 0300 /* indicates end of frame */ #define ESC 0333 /* indicates byte stuffing */ #define ESC_END 0334 /* ESC ESC_END means END 'data' */ #define ESC_ESC 0335 /* ESC ESC_ESC means ESC 'data' */ struct ax_disp { int magic; /* Various fields. */ struct tty_struct *tty; /* ptr to TTY structure */ struct net_device *dev; /* easy for intr handling */ struct ax_disp *mkiss; /* mkiss txport if mkiss channel*/ /* These are pointers to the malloc()ed frame buffers. */ unsigned char *rbuff; /* receiver buffer */ int rcount; /* received chars counter */ unsigned char *xbuff; /* transmitter buffer */ unsigned char *xhead; /* pointer to next byte to XMIT */ int xleft; /* bytes left in XMIT queue */ /* SLIP interface statistics. */ unsigned long rx_packets; /* inbound frames counter */ unsigned long tx_packets; /* outbound frames counter */ unsigned long rx_errors; /* Parity, etc. errors */ unsigned long tx_errors; /* Planned stuff */ unsigned long rx_dropped; /* No memory for skb */ unsigned long tx_dropped; /* When MTU change */ unsigned long rx_over_errors; /* Frame bigger then SLIP buf. */ /* Detailed SLIP statistics. */ int mtu; /* Our mtu (to spot changes!) */ int buffsize; /* Max buffers sizes */ unsigned char flags; /* Flag values/ mode etc */ #define AXF_INUSE 0 /* Channel in use */ #define AXF_ESCAPE 1 /* ESC received */ #define AXF_ERROR 2 /* Parity, etc. error */ #define AXF_KEEPTEST 3 /* Keepalive test flag */ #define AXF_OUTWAIT 4 /* is outpacket was flag */ int mode; int crcmode; /* MW: for FlexNet, SMACK etc. */ #define CRC_MODE_NONE 0 #define CRC_MODE_FLEX 1 #define CRC_MODE_SMACK 2 }; #define AX25_MAGIC 0x5316 #define MKISS_DRIVER_MAGIC 1215 |