1
2 /*
3 * Index to functions.
4 */
5
6 static int el1_probe1(struct net_device *dev, int ioaddr);
7 static int el_open(struct net_device *dev);
8 static void el_timeout(struct net_device *dev);
9 static int el_start_xmit(struct sk_buff *skb, struct net_device *dev);
10 static irqreturn_t el_interrupt(int irq, void *dev_id);
11 static void el_receive(struct net_device *dev);
12 static void el_reset(struct net_device *dev);
13 static int el1_close(struct net_device *dev);
14 static void set_multicast_list(struct net_device *dev);
15 static const struct ethtool_ops netdev_ethtool_ops;
16
17 #define EL1_IO_EXTENT 16
18
19 #ifndef EL_DEBUG
20 #define EL_DEBUG 0 /* use 0 for production, 1 for devel., >2 for debug */
21 #endif /* Anything above 5 is wordy death! */
22 #define debug el_debug
23 static int el_debug = EL_DEBUG;
24
25 /*
26 * Board-specific info in dev->priv.
27 */
28
29 struct net_local
30 {
31 int tx_pkt_start; /* The length of the current Tx packet. */
32 int collisions; /* Tx collisions this packet */
33 int loading; /* Spot buffer load collisions */
34 int txing; /* True if card is in TX mode */
35 spinlock_t lock; /* Serializing lock */
36 };
37
38
39 #define RX_STATUS (ioaddr + 0x06)
40 #define RX_CMD RX_STATUS
41 #define TX_STATUS (ioaddr + 0x07)
42 #define TX_CMD TX_STATUS
43 #define GP_LOW (ioaddr + 0x08)
44 #define GP_HIGH (ioaddr + 0x09)
45 #define RX_BUF_CLR (ioaddr + 0x0A)
46 #define RX_LOW (ioaddr + 0x0A)
47 #define RX_HIGH (ioaddr + 0x0B)
48 #define SAPROM (ioaddr + 0x0C)
49 #define AX_STATUS (ioaddr + 0x0E)
50 #define AX_CMD AX_STATUS
51 #define DATAPORT (ioaddr + 0x0F)
52 #define TX_RDY 0x08 /* In TX_STATUS */
53
54 #define EL1_DATAPTR 0x08
55 #define EL1_RXPTR 0x0A
56 #define EL1_SAPROM 0x0C
57 #define EL1_DATAPORT 0x0f
58
59 /*
60 * Writes to the ax command register.
61 */
62
63 #define AX_OFF 0x00 /* Irq off, buffer access on */
64 #define AX_SYS 0x40 /* Load the buffer */
65 #define AX_XMIT 0x44 /* Transmit a packet */
66 #define AX_RX 0x48 /* Receive a packet */
67 #define AX_LOOP 0x0C /* Loopback mode */
68 #define AX_RESET 0x80
69
70 /*
71 * Normal receive mode written to RX_STATUS. We must intr on short packets
72 * to avoid bogus rx lockups.
73 */
74
75 #define RX_NORM 0xA8 /* 0x68 == all addrs, 0xA8 only to me. */
76 #define RX_PROM 0x68 /* Senior Prom, uhmm promiscuous mode. */
77 #define RX_MULT 0xE8 /* Accept multicast packets. */
78 #define TX_NORM 0x0A /* Interrupt on everything that might hang the chip */
79
80 /*
81 * TX_STATUS register.
82 */
83
84 #define TX_COLLISION 0x02
85 #define TX_16COLLISIONS 0x04
86 #define TX_READY 0x08
87
88 #define RX_RUNT 0x08
89 #define RX_MISSED 0x01 /* Missed a packet due to 3c501 braindamage. */
90 #define RX_GOOD 0x30 /* Good packet 0x20, or simple overflow 0x10. */
91
92
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