| /**************************************************************************** |
| * 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 */ |
| |
| /* 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_bytes; /* inbound bytes counter */ |
| unsigned long tx_bytes; /* outbound bytes 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 long flags; /* Flag values/ mode etc */ |
| /* long req'd: used by set_bit --RR */ |
| #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 |
| spinlock_t buflock; /* lock for rbuf and xbuf */ |
| }; |
| |
| #define AX25_MAGIC 0x5316 |