/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * INET An implementation of the TCP/IP protocol suite for the LINUX * operating system. NET is implemented using the BSD Socket * interface as the means of communication with the user level. * * Definitions used by the ARCnet driver. * * Authors: Avery Pennarun and David Woodhouse */ #ifndef _LINUX_ARCDEVICE_H #define _LINUX_ARCDEVICE_H #include <asm/timex.h> #include <linux/if_arcnet.h> #ifdef __KERNEL__ #include <linux/interrupt.h> #include <linux/workqueue.h> /* * RECON_THRESHOLD is the maximum number of RECON messages to receive * within one minute before printing a "cabling problem" warning. The * default value should be fine. * * After that, a "cabling restored" message will be printed on the next IRQ * if no RECON messages have been received for 10 seconds. * * Do not define RECON_THRESHOLD at all if you want to disable this feature. */ #define RECON_THRESHOLD … /* * Define this to the minimum "timeout" value. If a transmit takes longer * than TX_TIMEOUT jiffies, Linux will abort the TX and retry. On a large * network, or one with heavy network traffic, this timeout may need to be * increased. The larger it is, though, the longer it will be between * necessary transmits - don't set this too high. */ #define TX_TIMEOUT … /* Display warnings about the driver being an ALPHA version. */ #undef ALPHA_WARNING /* * Debugging bitflags: each option can be enabled individually. * * Note: only debug flags included in the ARCNET_DEBUG_MAX define will * actually be available. GCC will (at least, GCC 2.7.0 will) notice * lines using a BUGLVL not in ARCNET_DEBUG_MAX and automatically optimize * them out. */ #define D_NORMAL … #define D_EXTRA … #define D_INIT … #define D_INIT_REASONS … #define D_RECON … #define D_PROTO … /* debug levels below give LOTS of output during normal operation! */ #define D_DURING … #define D_TX … #define D_RX … #define D_SKB … #define D_SKB_SIZE … #define D_TIMING … #define D_DEBUG … #ifndef ARCNET_DEBUG_MAX #define ARCNET_DEBUG_MAX … #endif #ifndef ARCNET_DEBUG #define ARCNET_DEBUG … #endif extern int arcnet_debug; #define BUGLVL(x) … /* macros to simplify debug checking */ #define arc_printk(x, dev, fmt, ...) … #define arc_cont(x, fmt, ...) … /* see how long a function call takes to run, expressed in CPU cycles */ #define TIME(dev, name, bytes, call) … /* * Time needed to reset the card - in ms (milliseconds). This works on my * SMC PC100. I can't find a reference that tells me just how long I * should wait. */ #define RESETtime … /* * These are the max/min lengths of packet payload, not including the * arc_hardware header, but definitely including the soft header. * * Note: packet sizes 254, 255, 256 are impossible because of the way * ARCnet registers work That's why RFC1201 defines "exception" packets. * In non-RFC1201 protocols, we have to just tack some extra bytes on the * end. */ #define MTU … #define MinTU … #define XMTU … /* status/interrupt mask bit fields */ #define TXFREEflag … #define TXACKflag … #define RECONflag … #define TESTflag … #define EXCNAKflag … #define RESETflag … #define RES1flag … #define RES2flag … #define NORXflag … /* Flags used for IO-mapped memory operations */ #define AUTOINCflag … #define IOMAPflag … #define ENABLE16flag … /* in the command register, the following bits have these meanings: * 0-2 command * 3-4 page number (for enable rcv/xmt command) * 7 receive broadcasts */ #define NOTXcmd … #define NORXcmd … #define TXcmd … #define RXcmd … #define CONFIGcmd … #define CFLAGScmd … #define TESTcmd … #define STARTIOcmd … /* flags for "clear flags" command */ #define RESETclear … #define CONFIGclear … #define EXCNAKclear … /* flags for "load test flags" command */ #define TESTload … /* byte deposited into first address of buffers on reset */ #define TESTvalue … /* for "enable receiver" command */ #define RXbcasts … /* flags for "define configuration" command */ #define NORMALconf … #define EXTconf … /* card feature flags, set during auto-detection. * (currently only used by com20020pci) */ #define ARC_IS_5MBIT … #define ARC_CAN_10MBIT … #define ARC_HAS_LED … #define ARC_HAS_ROTARY … /* information needed to define an encapsulation driver */ struct ArcProto { … }; extern struct ArcProto *arc_proto_map[256], *arc_proto_default, *arc_bcast_proto, *arc_raw_proto; /* * "Incoming" is information needed for each address that could be sending * to us. Mostly for partially-received split packets. */ struct Incoming { … }; /* only needed for RFC1201 */ struct Outgoing { … }; #define ARCNET_LED_NAME_SZ … struct arcnet_local { … }; enum arcnet_led_event { … }; void arcnet_led_event(struct net_device *netdev, enum arcnet_led_event event); void devm_arcnet_led_init(struct net_device *netdev, int index, int subid); #if ARCNET_DEBUG_MAX & D_SKB void arcnet_dump_skb(struct net_device *dev, struct sk_buff *skb, char *desc); #else static inline void arcnet_dump_skb(struct net_device *dev, struct sk_buff *skb, char *desc) { … } #endif void arcnet_unregister_proto(struct ArcProto *proto); irqreturn_t arcnet_interrupt(int irq, void *dev_id); struct net_device *alloc_arcdev(const char *name); void free_arcdev(struct net_device *dev); int arcnet_open(struct net_device *dev); int arcnet_close(struct net_device *dev); netdev_tx_t arcnet_send_packet(struct sk_buff *skb, struct net_device *dev); void arcnet_timeout(struct net_device *dev, unsigned int txqueue); static inline void arcnet_set_addr(struct net_device *dev, u8 addr) { … } /* I/O equivalents */ #ifdef CONFIG_SA1100_CT6001 #define BUS_ALIGN … #else #define BUS_ALIGN … #endif /* addr and offset allow register like names to define the actual IO address. * A configuration option multiplies the offset for alignment. */ #define arcnet_inb(addr, offset) … #define arcnet_outb(value, addr, offset) … #define arcnet_insb(addr, offset, buffer, count) … #define arcnet_outsb(addr, offset, buffer, count) … #define arcnet_readb(addr, offset) … #define arcnet_writeb(value, addr, offset) … #endif /* __KERNEL__ */ #endif /* _LINUX_ARCDEVICE_H */
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