F: drivers/net/
F: include/linux/if_*
F: include/linux/netdevice.h
-F: include/linux/arcdevice.h
F: include/linux/etherdevice.h
F: include/linux/fcdevice.h
F: include/linux/fddidevice.h
#include <net/arp.h>
#include <linux/netdevice.h>
#include <linux/skbuff.h>
-#include <linux/arcdevice.h>
+
+#include "arcdevice.h"
static void rx(struct net_device *dev, int bufnum,
struct archdr *pkthdr, int length);
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/io.h>
-#include <linux/arcdevice.h>
+
+#include "arcdevice.h"
/* Internal function declarations */
--- /dev/null
+/*
+ * 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
+ *
+ * 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 _LINUX_ARCDEVICE_H
+#define _LINUX_ARCDEVICE_H
+
+#include <asm/timex.h>
+#include <linux/if_arcnet.h>
+
+#ifdef __KERNEL__
+#include <linux/irqreturn.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 30
+
+/*
+ * 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 (HZ * 200 / 1000)
+
+/* 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 1 /* important operational info */
+#define D_EXTRA 2 /* useful, but non-vital information */
+#define D_INIT 4 /* show init/probe messages */
+#define D_INIT_REASONS 8 /* show reasons for discarding probes */
+#define D_RECON 32 /* print a message whenever token is lost */
+#define D_PROTO 64 /* debug auto-protocol support */
+/* debug levels below give LOTS of output during normal operation! */
+#define D_DURING 128 /* trace operations (including irq's) */
+#define D_TX 256 /* show tx packets */
+#define D_RX 512 /* show rx packets */
+#define D_SKB 1024 /* show skb's */
+#define D_SKB_SIZE 2048 /* show skb sizes */
+#define D_TIMING 4096 /* show time needed to copy buffers to card */
+#define D_DEBUG 8192 /* Very detailed debug line for line */
+
+#ifndef ARCNET_DEBUG_MAX
+#define ARCNET_DEBUG_MAX (127) /* change to ~0 if you want detailed debugging */
+#endif
+
+#ifndef ARCNET_DEBUG
+#define ARCNET_DEBUG (D_NORMAL | D_EXTRA)
+#endif
+extern int arcnet_debug;
+
+#define BUGLVL(x) ((x) & ARCNET_DEBUG_MAX & arcnet_debug)
+
+/* macros to simplify debug checking */
+#define arc_printk(x, dev, fmt, ...) \
+do { \
+ if (BUGLVL(x)) { \
+ if ((x) == D_NORMAL) \
+ netdev_warn(dev, fmt, ##__VA_ARGS__); \
+ else if ((x) < D_DURING) \
+ netdev_info(dev, fmt, ##__VA_ARGS__); \
+ else \
+ netdev_dbg(dev, fmt, ##__VA_ARGS__); \
+ } \
+} while (0)
+
+#define arc_cont(x, fmt, ...) \
+do { \
+ if (BUGLVL(x)) \
+ pr_cont(fmt, ##__VA_ARGS__); \
+} while (0)
+
+/* see how long a function call takes to run, expressed in CPU cycles */
+#define TIME(dev, name, bytes, call) \
+do { \
+ if (BUGLVL(D_TIMING)) { \
+ unsigned long _x, _y; \
+ _x = get_cycles(); \
+ call; \
+ _y = get_cycles(); \
+ arc_printk(D_TIMING, dev, \
+ "%s: %d bytes in %lu cycles == %lu Kbytes/100Mcycle\n", \
+ name, bytes, _y - _x, \
+ 100000000 / 1024 * bytes / (_y - _x + 1)); \
+ } else { \
+ call; \
+ } \
+} while (0)
+
+/*
+ * 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 (300)
+
+/*
+ * 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 253 /* normal packet max size */
+#define MinTU 257 /* extended packet min size */
+#define XMTU 508 /* extended packet max size */
+
+/* status/interrupt mask bit fields */
+#define TXFREEflag 0x01 /* transmitter available */
+#define TXACKflag 0x02 /* transmitted msg. ackd */
+#define RECONflag 0x04 /* network reconfigured */
+#define TESTflag 0x08 /* test flag */
+#define EXCNAKflag 0x08 /* excesive nak flag */
+#define RESETflag 0x10 /* power-on-reset */
+#define RES1flag 0x20 /* reserved - usually set by jumper */
+#define RES2flag 0x40 /* reserved - usually set by jumper */
+#define NORXflag 0x80 /* receiver inhibited */
+
+/* Flags used for IO-mapped memory operations */
+#define AUTOINCflag 0x40 /* Increase location with each access */
+#define IOMAPflag 0x02 /* (for 90xx) Use IO mapped memory, not mmap */
+#define ENABLE16flag 0x80 /* (for 90xx) Enable 16-bit mode */
+
+/* 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 0x01 /* disable transmitter */
+#define NORXcmd 0x02 /* disable receiver */
+#define TXcmd 0x03 /* enable transmitter */
+#define RXcmd 0x04 /* enable receiver */
+#define CONFIGcmd 0x05 /* define configuration */
+#define CFLAGScmd 0x06 /* clear flags */
+#define TESTcmd 0x07 /* load test flags */
+
+/* flags for "clear flags" command */
+#define RESETclear 0x08 /* power-on-reset */
+#define CONFIGclear 0x10 /* system reconfigured */
+
+#define EXCNAKclear 0x0E /* Clear and acknowledge the excive nak bit */
+
+/* flags for "load test flags" command */
+#define TESTload 0x08 /* test flag (diagnostic) */
+
+/* byte deposited into first address of buffers on reset */
+#define TESTvalue 0321 /* that's octal for 0xD1 :) */
+
+/* for "enable receiver" command */
+#define RXbcasts 0x80 /* receive broadcasts */
+
+/* flags for "define configuration" command */
+#define NORMALconf 0x00 /* 1-249 byte packets */
+#define EXTconf 0x08 /* 250-504 byte packets */
+
+/* card feature flags, set during auto-detection.
+ * (currently only used by com20020pci)
+ */
+#define ARC_IS_5MBIT 1 /* card default speed is 5MBit */
+#define ARC_CAN_10MBIT 2 /* card uses COM20022, supporting 10MBit,
+ but default is 2.5MBit. */
+
+/* information needed to define an encapsulation driver */
+struct ArcProto {
+ char suffix; /* a for RFC1201, e for ether-encap, etc. */
+ int mtu; /* largest possible packet */
+ int is_ip; /* This is a ip plugin - not a raw thing */
+
+ void (*rx)(struct net_device *dev, int bufnum,
+ struct archdr *pkthdr, int length);
+ int (*build_header)(struct sk_buff *skb, struct net_device *dev,
+ unsigned short ethproto, uint8_t daddr);
+
+ /* these functions return '1' if the skb can now be freed */
+ int (*prepare_tx)(struct net_device *dev, struct archdr *pkt,
+ int length, int bufnum);
+ int (*continue_tx)(struct net_device *dev, int bufnum);
+ int (*ack_tx)(struct net_device *dev, int acked);
+};
+
+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 {
+ struct sk_buff *skb; /* packet data buffer */
+ __be16 sequence; /* sequence number of assembly */
+ uint8_t lastpacket, /* number of last packet (from 1) */
+ numpackets; /* number of packets in split */
+};
+
+/* only needed for RFC1201 */
+struct Outgoing {
+ struct ArcProto *proto; /* protocol driver that owns this:
+ * if NULL, no packet is pending.
+ */
+ struct sk_buff *skb; /* buffer from upper levels */
+ struct archdr *pkt; /* a pointer into the skb */
+ uint16_t length, /* bytes total */
+ dataleft, /* bytes left */
+ segnum, /* segment being sent */
+ numsegs; /* number of segments */
+};
+
+struct arcnet_local {
+ uint8_t config, /* current value of CONFIG register */
+ timeout, /* Extended timeout for COM20020 */
+ backplane, /* Backplane flag for COM20020 */
+ clockp, /* COM20020 clock divider */
+ clockm, /* COM20020 clock multiplier flag */
+ setup, /* Contents of setup1 register */
+ setup2, /* Contents of setup2 register */
+ intmask; /* current value of INTMASK register */
+ uint8_t default_proto[256]; /* default encap to use for each host */
+ int cur_tx, /* buffer used by current transmit, or -1 */
+ next_tx, /* buffer where a packet is ready to send */
+ cur_rx; /* current receive buffer */
+ int lastload_dest, /* can last loaded packet be acked? */
+ lasttrans_dest; /* can last TX'd packet be acked? */
+ int timed_out; /* need to process TX timeout and drop packet */
+ unsigned long last_timeout; /* time of last reported timeout */
+ char *card_name; /* card ident string */
+ int card_flags; /* special card features */
+
+ /* On preemtive and SMB a lock is needed */
+ spinlock_t lock;
+
+ /*
+ * Buffer management: an ARCnet card has 4 x 512-byte buffers, each of
+ * which can be used for either sending or receiving. The new dynamic
+ * buffer management routines use a simple circular queue of available
+ * buffers, and take them as they're needed. This way, we simplify
+ * situations in which we (for example) want to pre-load a transmit
+ * buffer, or start receiving while we copy a received packet to
+ * memory.
+ *
+ * The rules: only the interrupt handler is allowed to _add_ buffers to
+ * the queue; thus, this doesn't require a lock. Both the interrupt
+ * handler and the transmit function will want to _remove_ buffers, so
+ * we need to handle the situation where they try to do it at the same
+ * time.
+ *
+ * If next_buf == first_free_buf, the queue is empty. Since there are
+ * only four possible buffers, the queue should never be full.
+ */
+ atomic_t buf_lock;
+ int buf_queue[5];
+ int next_buf, first_free_buf;
+
+ /* network "reconfiguration" handling */
+ unsigned long first_recon; /* time of "first" RECON message to count */
+ unsigned long last_recon; /* time of most recent RECON */
+ int num_recons; /* number of RECONs between first and last. */
+ int network_down; /* do we think the network is down? */
+
+ int excnak_pending; /* We just got an excesive nak interrupt */
+
+ struct {
+ uint16_t sequence; /* sequence number (incs with each packet) */
+ __be16 aborted_seq;
+
+ struct Incoming incoming[256]; /* one from each address */
+ } rfc1201;
+
+ /* really only used by rfc1201, but we'll pretend it's not */
+ struct Outgoing outgoing; /* packet currently being sent */
+
+ /* hardware-specific functions */
+ struct {
+ struct module *owner;
+ void (*command)(struct net_device *dev, int cmd);
+ int (*status)(struct net_device *dev);
+ void (*intmask)(struct net_device *dev, int mask);
+ int (*reset)(struct net_device *dev, int really_reset);
+ void (*open)(struct net_device *dev);
+ void (*close)(struct net_device *dev);
+
+ void (*copy_to_card)(struct net_device *dev, int bufnum,
+ int offset, void *buf, int count);
+ void (*copy_from_card)(struct net_device *dev, int bufnum,
+ int offset, void *buf, int count);
+ } hw;
+
+ void __iomem *mem_start; /* pointer to ioremap'ed MMIO */
+};
+
+#define ARCRESET(x) (lp->hw.reset(dev, (x)))
+#define ACOMMAND(x) (lp->hw.command(dev, (x)))
+#define ASTATUS() (lp->hw.status(dev))
+#define AINTMASK(x) (lp->hw.intmask(dev, (x)))
+
+#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);
+
+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);
+
+#endif /* __KERNEL__ */
+#endif /* _LINUX_ARCDEVICE_H */
#include <linux/if_arp.h>
#include <net/arp.h>
#include <linux/init.h>
-#include <linux/arcdevice.h>
#include <linux/jiffies.h>
+#include "arcdevice.h"
+
/* "do nothing" functions for protocol drivers */
static void null_rx(struct net_device *dev, int bufnum,
struct archdr *pkthdr, int length);
#include <net/arp.h>
#include <linux/netdevice.h>
#include <linux/skbuff.h>
-#include <linux/arcdevice.h>
+
+#include "arcdevice.h"
/* packet receiver */
static void rx(struct net_device *dev, int bufnum,
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/bootmem.h>
-#include <linux/arcdevice.h>
-#include <linux/com20020.h>
-
#include <linux/io.h>
+#include "arcdevice.h"
+#include "com20020.h"
+
/* We cannot (yet) probe for an IO mapped card, although we can check that
* it's where we were told it was, and even do autoirq.
*/
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/pci.h>
-#include <linux/arcdevice.h>
-#include <linux/com20020.h>
#include <linux/list.h>
-
#include <linux/io.h>
+#include "arcdevice.h"
+#include "com20020.h"
+
/* Module parameters */
static int node;
#include <linux/netdevice.h>
#include <linux/init.h>
#include <linux/interrupt.h>
-#include <linux/arcdevice.h>
-#include <linux/com20020.h>
-
#include <linux/io.h>
+#include "arcdevice.h"
+#include "com20020.h"
+
static char *clockrates[] = {
"XXXXXXX", "XXXXXXXX", "XXXXXX",
"2.5 Mb/s", "1.25Mb/s", "625 Kb/s", "312.5 Kb/s",
--- /dev/null
+/*
+ * Linux ARCnet driver - COM20020 chipset support - function declarations
+ *
+ * Written 1997 by David Woodhouse.
+ * Written 1994-1999 by Avery Pennarun.
+ * Derived from skeleton.c by Donald Becker.
+ *
+ * Special thanks to Contemporary Controls, Inc. (www.ccontrols.com)
+ * for sponsoring the further development of this driver.
+ *
+ * **********************
+ *
+ * The original copyright of skeleton.c was as follows:
+ *
+ * skeleton.c Written 1993 by Donald Becker.
+ * Copyright 1993 United States Government as represented by the
+ * Director, National Security Agency. This software may only be used
+ * and distributed according to the terms of the GNU General Public License as
+ * modified by SRC, incorporated herein by reference.
+ *
+ * **********************
+ *
+ * For more details, see drivers/net/arcnet.c
+ *
+ * **********************
+ */
+#ifndef __COM20020_H
+#define __COM20020_H
+
+int com20020_check(struct net_device *dev);
+int com20020_found(struct net_device *dev, int shared);
+extern const struct net_device_ops com20020_netdev_ops;
+
+/* The number of low I/O ports used by the card. */
+#define ARCNET_TOTAL_SIZE 8
+
+/* various register addresses */
+#ifdef CONFIG_SA1100_CT6001
+#define BUS_ALIGN 2 /* 8 bit device on a 16 bit bus - needs padding */
+#else
+#define BUS_ALIGN 1
+#endif
+
+#define PLX_PCI_MAX_CARDS 2
+
+struct com20020_pci_channel_map {
+ u32 bar;
+ u32 offset;
+ u32 size; /* 0x00 - auto, e.g. length of entire bar */
+};
+
+struct com20020_pci_card_info {
+ const char *name;
+ int devcount;
+
+ struct com20020_pci_channel_map chan_map_tbl[PLX_PCI_MAX_CARDS];
+
+ unsigned int flags;
+};
+
+struct com20020_priv {
+ struct com20020_pci_card_info *ci;
+ struct list_head list_dev;
+};
+
+struct com20020_dev {
+ struct list_head list;
+ struct net_device *dev;
+
+ struct com20020_priv *pci_priv;
+ int index;
+};
+
+#define _INTMASK (ioaddr+BUS_ALIGN*0) /* writable */
+#define _STATUS (ioaddr+BUS_ALIGN*0) /* readable */
+#define _COMMAND (ioaddr+BUS_ALIGN*1) /* standard arcnet commands */
+#define _DIAGSTAT (ioaddr+BUS_ALIGN*1) /* diagnostic status register */
+#define _ADDR_HI (ioaddr+BUS_ALIGN*2) /* control registers for IO-mapped memory */
+#define _ADDR_LO (ioaddr+BUS_ALIGN*3)
+#define _MEMDATA (ioaddr+BUS_ALIGN*4) /* data port for IO-mapped memory */
+#define _SUBADR (ioaddr+BUS_ALIGN*5) /* the extended port _XREG refers to */
+#define _CONFIG (ioaddr+BUS_ALIGN*6) /* configuration register */
+#define _XREG (ioaddr+BUS_ALIGN*7) /* extra registers (indexed by _CONFIG
+ or _SUBADR) */
+
+/* in the ADDR_HI register */
+#define RDDATAflag 0x80 /* next access is a read (not a write) */
+
+/* in the DIAGSTAT register */
+#define NEWNXTIDflag 0x02 /* ID to which token is passed has changed */
+
+/* in the CONFIG register */
+#define RESETcfg 0x80 /* put card in reset state */
+#define TXENcfg 0x20 /* enable TX */
+
+/* in SETUP register */
+#define PROMISCset 0x10 /* enable RCV_ALL */
+#define P1MODE 0x80 /* enable P1-MODE for Backplane */
+#define SLOWARB 0x01 /* enable Slow Arbitration for >=5Mbps */
+
+/* COM2002x */
+#define SUB_TENTATIVE 0 /* tentative node ID */
+#define SUB_NODE 1 /* node ID */
+#define SUB_SETUP1 2 /* various options */
+#define SUB_TEST 3 /* test/diag register */
+
+/* COM20022 only */
+#define SUB_SETUP2 4 /* sundry options */
+#define SUB_BUSCTL 5 /* bus control options */
+#define SUB_DMACOUNT 6 /* DMA count options */
+
+#define SET_SUBADR(x) do { \
+ if ((x) < 4) \
+ { \
+ lp->config = (lp->config & ~0x03) | (x); \
+ SETCONF; \
+ } \
+ else \
+ { \
+ outb(x, _SUBADR); \
+ } \
+} while (0)
+
+#undef ARCRESET
+#undef ASTATUS
+#undef ACOMMAND
+#undef AINTMASK
+
+#define ARCRESET { outb(lp->config | 0x80, _CONFIG); \
+ udelay(5); \
+ outb(lp->config , _CONFIG); \
+ }
+#define ARCRESET0 { outb(0x18 | 0x80, _CONFIG); \
+ udelay(5); \
+ outb(0x18 , _CONFIG); \
+ }
+
+#define ASTATUS() inb(_STATUS)
+#define ADIAGSTATUS() inb(_DIAGSTAT)
+#define ACOMMAND(cmd) outb((cmd),_COMMAND)
+#define AINTMASK(msk) outb((msk),_INTMASK)
+
+#define SETCONF outb(lp->config, _CONFIG)
+
+#endif /* __COM20020_H */
#include <linux/delay.h>
#include <linux/module.h>
#include <linux/netdevice.h>
-#include <linux/arcdevice.h>
-#include <linux/com20020.h>
-
+#include <linux/io.h>
#include <pcmcia/cistpl.h>
#include <pcmcia/ds.h>
-#include <linux/io.h>
+#include "arcdevice.h"
+#include "com20020.h"
static void regdump(struct net_device *dev)
{
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/io.h>
-#include <linux/arcdevice.h>
+
+#include "arcdevice.h"
/* Internal function declarations */
#include <linux/netdevice.h>
#include <linux/slab.h>
#include <linux/io.h>
-#include <linux/arcdevice.h>
+
+#include "arcdevice.h"
/* Define this to speed up the autoprobe by assuming if only one io port and
* shmem are left in the list at Stage 5, they must correspond to each
#include <net/arp.h>
#include <linux/netdevice.h>
#include <linux/skbuff.h>
-#include <linux/arcdevice.h>
+
+#include "arcdevice.h"
static __be16 type_trans(struct sk_buff *skb, struct net_device *dev);
static void rx(struct net_device *dev, int bufnum,
#include <linux/if_arp.h>
#include <linux/netdevice.h>
#include <linux/skbuff.h>
-#include <linux/arcdevice.h>
+
+#include "arcdevice.h"
MODULE_LICENSE("GPL");
+++ /dev/null
-/*
- * 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
- *
- * 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 _LINUX_ARCDEVICE_H
-#define _LINUX_ARCDEVICE_H
-
-#include <asm/timex.h>
-#include <linux/if_arcnet.h>
-
-#ifdef __KERNEL__
-#include <linux/irqreturn.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 30
-
-/*
- * 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 (HZ * 200 / 1000)
-
-/* 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 1 /* important operational info */
-#define D_EXTRA 2 /* useful, but non-vital information */
-#define D_INIT 4 /* show init/probe messages */
-#define D_INIT_REASONS 8 /* show reasons for discarding probes */
-#define D_RECON 32 /* print a message whenever token is lost */
-#define D_PROTO 64 /* debug auto-protocol support */
-/* debug levels below give LOTS of output during normal operation! */
-#define D_DURING 128 /* trace operations (including irq's) */
-#define D_TX 256 /* show tx packets */
-#define D_RX 512 /* show rx packets */
-#define D_SKB 1024 /* show skb's */
-#define D_SKB_SIZE 2048 /* show skb sizes */
-#define D_TIMING 4096 /* show time needed to copy buffers to card */
-#define D_DEBUG 8192 /* Very detailed debug line for line */
-
-#ifndef ARCNET_DEBUG_MAX
-#define ARCNET_DEBUG_MAX (127) /* change to ~0 if you want detailed debugging */
-#endif
-
-#ifndef ARCNET_DEBUG
-#define ARCNET_DEBUG (D_NORMAL | D_EXTRA)
-#endif
-extern int arcnet_debug;
-
-#define BUGLVL(x) ((x) & ARCNET_DEBUG_MAX & arcnet_debug)
-
-/* macros to simplify debug checking */
-#define arc_printk(x, dev, fmt, ...) \
-do { \
- if (BUGLVL(x)) { \
- if ((x) == D_NORMAL) \
- netdev_warn(dev, fmt, ##__VA_ARGS__); \
- else if ((x) < D_DURING) \
- netdev_info(dev, fmt, ##__VA_ARGS__); \
- else \
- netdev_dbg(dev, fmt, ##__VA_ARGS__); \
- } \
-} while (0)
-
-#define arc_cont(x, fmt, ...) \
-do { \
- if (BUGLVL(x)) \
- pr_cont(fmt, ##__VA_ARGS__); \
-} while (0)
-
-/* see how long a function call takes to run, expressed in CPU cycles */
-#define TIME(dev, name, bytes, call) \
-do { \
- if (BUGLVL(D_TIMING)) { \
- unsigned long _x, _y; \
- _x = get_cycles(); \
- call; \
- _y = get_cycles(); \
- arc_printk(D_TIMING, dev, \
- "%s: %d bytes in %lu cycles == %lu Kbytes/100Mcycle\n", \
- name, bytes, _y - _x, \
- 100000000 / 1024 * bytes / (_y - _x + 1)); \
- } else { \
- call; \
- } \
-} while (0)
-
-/*
- * 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 (300)
-
-/*
- * 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 253 /* normal packet max size */
-#define MinTU 257 /* extended packet min size */
-#define XMTU 508 /* extended packet max size */
-
-/* status/interrupt mask bit fields */
-#define TXFREEflag 0x01 /* transmitter available */
-#define TXACKflag 0x02 /* transmitted msg. ackd */
-#define RECONflag 0x04 /* network reconfigured */
-#define TESTflag 0x08 /* test flag */
-#define EXCNAKflag 0x08 /* excesive nak flag */
-#define RESETflag 0x10 /* power-on-reset */
-#define RES1flag 0x20 /* reserved - usually set by jumper */
-#define RES2flag 0x40 /* reserved - usually set by jumper */
-#define NORXflag 0x80 /* receiver inhibited */
-
-/* Flags used for IO-mapped memory operations */
-#define AUTOINCflag 0x40 /* Increase location with each access */
-#define IOMAPflag 0x02 /* (for 90xx) Use IO mapped memory, not mmap */
-#define ENABLE16flag 0x80 /* (for 90xx) Enable 16-bit mode */
-
-/* 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 0x01 /* disable transmitter */
-#define NORXcmd 0x02 /* disable receiver */
-#define TXcmd 0x03 /* enable transmitter */
-#define RXcmd 0x04 /* enable receiver */
-#define CONFIGcmd 0x05 /* define configuration */
-#define CFLAGScmd 0x06 /* clear flags */
-#define TESTcmd 0x07 /* load test flags */
-
-/* flags for "clear flags" command */
-#define RESETclear 0x08 /* power-on-reset */
-#define CONFIGclear 0x10 /* system reconfigured */
-
-#define EXCNAKclear 0x0E /* Clear and acknowledge the excive nak bit */
-
-/* flags for "load test flags" command */
-#define TESTload 0x08 /* test flag (diagnostic) */
-
-/* byte deposited into first address of buffers on reset */
-#define TESTvalue 0321 /* that's octal for 0xD1 :) */
-
-/* for "enable receiver" command */
-#define RXbcasts 0x80 /* receive broadcasts */
-
-/* flags for "define configuration" command */
-#define NORMALconf 0x00 /* 1-249 byte packets */
-#define EXTconf 0x08 /* 250-504 byte packets */
-
-/* card feature flags, set during auto-detection.
- * (currently only used by com20020pci)
- */
-#define ARC_IS_5MBIT 1 /* card default speed is 5MBit */
-#define ARC_CAN_10MBIT 2 /* card uses COM20022, supporting 10MBit,
- but default is 2.5MBit. */
-
-/* information needed to define an encapsulation driver */
-struct ArcProto {
- char suffix; /* a for RFC1201, e for ether-encap, etc. */
- int mtu; /* largest possible packet */
- int is_ip; /* This is a ip plugin - not a raw thing */
-
- void (*rx)(struct net_device *dev, int bufnum,
- struct archdr *pkthdr, int length);
- int (*build_header)(struct sk_buff *skb, struct net_device *dev,
- unsigned short ethproto, uint8_t daddr);
-
- /* these functions return '1' if the skb can now be freed */
- int (*prepare_tx)(struct net_device *dev, struct archdr *pkt,
- int length, int bufnum);
- int (*continue_tx)(struct net_device *dev, int bufnum);
- int (*ack_tx)(struct net_device *dev, int acked);
-};
-
-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 {
- struct sk_buff *skb; /* packet data buffer */
- __be16 sequence; /* sequence number of assembly */
- uint8_t lastpacket, /* number of last packet (from 1) */
- numpackets; /* number of packets in split */
-};
-
-/* only needed for RFC1201 */
-struct Outgoing {
- struct ArcProto *proto; /* protocol driver that owns this:
- * if NULL, no packet is pending.
- */
- struct sk_buff *skb; /* buffer from upper levels */
- struct archdr *pkt; /* a pointer into the skb */
- uint16_t length, /* bytes total */
- dataleft, /* bytes left */
- segnum, /* segment being sent */
- numsegs; /* number of segments */
-};
-
-struct arcnet_local {
- uint8_t config, /* current value of CONFIG register */
- timeout, /* Extended timeout for COM20020 */
- backplane, /* Backplane flag for COM20020 */
- clockp, /* COM20020 clock divider */
- clockm, /* COM20020 clock multiplier flag */
- setup, /* Contents of setup1 register */
- setup2, /* Contents of setup2 register */
- intmask; /* current value of INTMASK register */
- uint8_t default_proto[256]; /* default encap to use for each host */
- int cur_tx, /* buffer used by current transmit, or -1 */
- next_tx, /* buffer where a packet is ready to send */
- cur_rx; /* current receive buffer */
- int lastload_dest, /* can last loaded packet be acked? */
- lasttrans_dest; /* can last TX'd packet be acked? */
- int timed_out; /* need to process TX timeout and drop packet */
- unsigned long last_timeout; /* time of last reported timeout */
- char *card_name; /* card ident string */
- int card_flags; /* special card features */
-
- /* On preemtive and SMB a lock is needed */
- spinlock_t lock;
-
- /*
- * Buffer management: an ARCnet card has 4 x 512-byte buffers, each of
- * which can be used for either sending or receiving. The new dynamic
- * buffer management routines use a simple circular queue of available
- * buffers, and take them as they're needed. This way, we simplify
- * situations in which we (for example) want to pre-load a transmit
- * buffer, or start receiving while we copy a received packet to
- * memory.
- *
- * The rules: only the interrupt handler is allowed to _add_ buffers to
- * the queue; thus, this doesn't require a lock. Both the interrupt
- * handler and the transmit function will want to _remove_ buffers, so
- * we need to handle the situation where they try to do it at the same
- * time.
- *
- * If next_buf == first_free_buf, the queue is empty. Since there are
- * only four possible buffers, the queue should never be full.
- */
- atomic_t buf_lock;
- int buf_queue[5];
- int next_buf, first_free_buf;
-
- /* network "reconfiguration" handling */
- unsigned long first_recon; /* time of "first" RECON message to count */
- unsigned long last_recon; /* time of most recent RECON */
- int num_recons; /* number of RECONs between first and last. */
- int network_down; /* do we think the network is down? */
-
- int excnak_pending; /* We just got an excesive nak interrupt */
-
- struct {
- uint16_t sequence; /* sequence number (incs with each packet) */
- __be16 aborted_seq;
-
- struct Incoming incoming[256]; /* one from each address */
- } rfc1201;
-
- /* really only used by rfc1201, but we'll pretend it's not */
- struct Outgoing outgoing; /* packet currently being sent */
-
- /* hardware-specific functions */
- struct {
- struct module *owner;
- void (*command)(struct net_device *dev, int cmd);
- int (*status)(struct net_device *dev);
- void (*intmask)(struct net_device *dev, int mask);
- int (*reset)(struct net_device *dev, int really_reset);
- void (*open)(struct net_device *dev);
- void (*close)(struct net_device *dev);
-
- void (*copy_to_card)(struct net_device *dev, int bufnum,
- int offset, void *buf, int count);
- void (*copy_from_card)(struct net_device *dev, int bufnum,
- int offset, void *buf, int count);
- } hw;
-
- void __iomem *mem_start; /* pointer to ioremap'ed MMIO */
-};
-
-#define ARCRESET(x) (lp->hw.reset(dev, (x)))
-#define ACOMMAND(x) (lp->hw.command(dev, (x)))
-#define ASTATUS() (lp->hw.status(dev))
-#define AINTMASK(x) (lp->hw.intmask(dev, (x)))
-
-#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);
-
-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);
-
-#endif /* __KERNEL__ */
-#endif /* _LINUX_ARCDEVICE_H */
+++ /dev/null
-/*
- * Linux ARCnet driver - COM20020 chipset support - function declarations
- *
- * Written 1997 by David Woodhouse.
- * Written 1994-1999 by Avery Pennarun.
- * Derived from skeleton.c by Donald Becker.
- *
- * Special thanks to Contemporary Controls, Inc. (www.ccontrols.com)
- * for sponsoring the further development of this driver.
- *
- * **********************
- *
- * The original copyright of skeleton.c was as follows:
- *
- * skeleton.c Written 1993 by Donald Becker.
- * Copyright 1993 United States Government as represented by the
- * Director, National Security Agency. This software may only be used
- * and distributed according to the terms of the GNU General Public License as
- * modified by SRC, incorporated herein by reference.
- *
- * **********************
- *
- * For more details, see drivers/net/arcnet.c
- *
- * **********************
- */
-#ifndef __COM20020_H
-#define __COM20020_H
-
-int com20020_check(struct net_device *dev);
-int com20020_found(struct net_device *dev, int shared);
-extern const struct net_device_ops com20020_netdev_ops;
-
-/* The number of low I/O ports used by the card. */
-#define ARCNET_TOTAL_SIZE 8
-
-/* various register addresses */
-#ifdef CONFIG_SA1100_CT6001
-#define BUS_ALIGN 2 /* 8 bit device on a 16 bit bus - needs padding */
-#else
-#define BUS_ALIGN 1
-#endif
-
-#define PLX_PCI_MAX_CARDS 2
-
-struct com20020_pci_channel_map {
- u32 bar;
- u32 offset;
- u32 size; /* 0x00 - auto, e.g. length of entire bar */
-};
-
-struct com20020_pci_card_info {
- const char *name;
- int devcount;
-
- struct com20020_pci_channel_map chan_map_tbl[PLX_PCI_MAX_CARDS];
-
- unsigned int flags;
-};
-
-struct com20020_priv {
- struct com20020_pci_card_info *ci;
- struct list_head list_dev;
-};
-
-struct com20020_dev {
- struct list_head list;
- struct net_device *dev;
-
- struct com20020_priv *pci_priv;
- int index;
-};
-
-#define _INTMASK (ioaddr+BUS_ALIGN*0) /* writable */
-#define _STATUS (ioaddr+BUS_ALIGN*0) /* readable */
-#define _COMMAND (ioaddr+BUS_ALIGN*1) /* standard arcnet commands */
-#define _DIAGSTAT (ioaddr+BUS_ALIGN*1) /* diagnostic status register */
-#define _ADDR_HI (ioaddr+BUS_ALIGN*2) /* control registers for IO-mapped memory */
-#define _ADDR_LO (ioaddr+BUS_ALIGN*3)
-#define _MEMDATA (ioaddr+BUS_ALIGN*4) /* data port for IO-mapped memory */
-#define _SUBADR (ioaddr+BUS_ALIGN*5) /* the extended port _XREG refers to */
-#define _CONFIG (ioaddr+BUS_ALIGN*6) /* configuration register */
-#define _XREG (ioaddr+BUS_ALIGN*7) /* extra registers (indexed by _CONFIG
- or _SUBADR) */
-
-/* in the ADDR_HI register */
-#define RDDATAflag 0x80 /* next access is a read (not a write) */
-
-/* in the DIAGSTAT register */
-#define NEWNXTIDflag 0x02 /* ID to which token is passed has changed */
-
-/* in the CONFIG register */
-#define RESETcfg 0x80 /* put card in reset state */
-#define TXENcfg 0x20 /* enable TX */
-
-/* in SETUP register */
-#define PROMISCset 0x10 /* enable RCV_ALL */
-#define P1MODE 0x80 /* enable P1-MODE for Backplane */
-#define SLOWARB 0x01 /* enable Slow Arbitration for >=5Mbps */
-
-/* COM2002x */
-#define SUB_TENTATIVE 0 /* tentative node ID */
-#define SUB_NODE 1 /* node ID */
-#define SUB_SETUP1 2 /* various options */
-#define SUB_TEST 3 /* test/diag register */
-
-/* COM20022 only */
-#define SUB_SETUP2 4 /* sundry options */
-#define SUB_BUSCTL 5 /* bus control options */
-#define SUB_DMACOUNT 6 /* DMA count options */
-
-#define SET_SUBADR(x) do { \
- if ((x) < 4) \
- { \
- lp->config = (lp->config & ~0x03) | (x); \
- SETCONF; \
- } \
- else \
- { \
- outb(x, _SUBADR); \
- } \
-} while (0)
-
-#undef ARCRESET
-#undef ASTATUS
-#undef ACOMMAND
-#undef AINTMASK
-
-#define ARCRESET { outb(lp->config | 0x80, _CONFIG); \
- udelay(5); \
- outb(lp->config , _CONFIG); \
- }
-#define ARCRESET0 { outb(0x18 | 0x80, _CONFIG); \
- udelay(5); \
- outb(0x18 , _CONFIG); \
- }
-
-#define ASTATUS() inb(_STATUS)
-#define ADIAGSTATUS() inb(_DIAGSTAT)
-#define ACOMMAND(cmd) outb((cmd),_COMMAND)
-#define AINTMASK(msk) outb((msk),_INTMASK)
-
-#define SETCONF outb(lp->config, _CONFIG)
-
-#endif /* __COM20020_H */
projects / GitHub / MotorolaMobilityLLC / kernel-slsi.git / commitdiff