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/*
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* Index to functions.
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*/
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static int el1_probe1(struct net_device *dev, int ioaddr);
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static int el_open(struct net_device *dev);
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static void el_timeout(struct net_device *dev);
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static int el_start_xmit(struct sk_buff *skb, struct net_device *dev);
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static irqreturn_t el_interrupt(int irq, void *dev_id, struct pt_regs *regs);
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static void el_receive(struct net_device *dev);
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static void el_reset(struct net_device *dev);
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static int el1_close(struct net_device *dev);
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static struct net_device_stats *el1_get_stats(struct net_device *dev);
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static void set_multicast_list(struct net_device *dev);
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static struct ethtool_ops netdev_ethtool_ops;
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#define EL1_IO_EXTENT 16
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#ifndef EL_DEBUG
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#define EL_DEBUG 0 /* use 0 for production, 1 for devel., >2 for debug */
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#endif /* Anything above 5 is wordy death! */
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#define debug el_debug
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static int el_debug = EL_DEBUG;
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/*
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* Board-specific info in dev->priv.
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*/
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struct net_local
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{
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struct net_device_stats stats;
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int tx_pkt_start; /* The length of the current Tx packet. */
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int collisions; /* Tx collisions this packet */
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int loading; /* Spot buffer load collisions */
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int txing; /* True if card is in TX mode */
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spinlock_t lock; /* Serializing lock */
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};
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#define RX_STATUS (ioaddr + 0x06)
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#define RX_CMD RX_STATUS
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#define TX_STATUS (ioaddr + 0x07)
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#define TX_CMD TX_STATUS
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#define GP_LOW (ioaddr + 0x08)
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#define GP_HIGH (ioaddr + 0x09)
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#define RX_BUF_CLR (ioaddr + 0x0A)
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#define RX_LOW (ioaddr + 0x0A)
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#define RX_HIGH (ioaddr + 0x0B)
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#define SAPROM (ioaddr + 0x0C)
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#define AX_STATUS (ioaddr + 0x0E)
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#define AX_CMD AX_STATUS
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#define DATAPORT (ioaddr + 0x0F)
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#define TX_RDY 0x08 /* In TX_STATUS */
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#define EL1_DATAPTR 0x08
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#define EL1_RXPTR 0x0A
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#define EL1_SAPROM 0x0C
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#define EL1_DATAPORT 0x0f
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/*
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* Writes to the ax command register.
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*/
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#define AX_OFF 0x00 /* Irq off, buffer access on */
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#define AX_SYS 0x40 /* Load the buffer */
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#define AX_XMIT 0x44 /* Transmit a packet */
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#define AX_RX 0x48 /* Receive a packet */
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#define AX_LOOP 0x0C /* Loopback mode */
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#define AX_RESET 0x80
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/*
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* Normal receive mode written to RX_STATUS. We must intr on short packets
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* to avoid bogus rx lockups.
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*/
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#define RX_NORM 0xA8 /* 0x68 == all addrs, 0xA8 only to me. */
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#define RX_PROM 0x68 /* Senior Prom, uhmm promiscuous mode. */
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#define RX_MULT 0xE8 /* Accept multicast packets. */
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#define TX_NORM 0x0A /* Interrupt on everything that might hang the chip */
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/*
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* TX_STATUS register.
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*/
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#define TX_COLLISION 0x02
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#define TX_16COLLISIONS 0x04
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#define TX_READY 0x08
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#define RX_RUNT 0x08
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#define RX_MISSED 0x01 /* Missed a packet due to 3c501 braindamage. */
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#define RX_GOOD 0x30 /* Good packet 0x20, or simple overflow 0x10. */
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