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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/* Generic NS8390 register definitions. */
2/* This file is part of Donald Becker's 8390 drivers, and is distributed
3 under the same license. Auto-loading of 8390.o only in v2.2 - Paul G.
4 Some of these names and comments originated from the Crynwr
5 packet drivers, which are distributed under the GPL. */
6
7#ifndef _8390_h
8#define _8390_h
9
Linus Torvalds1da177e2005-04-16 15:20:36 -070010#include <linux/if_ether.h>
11#include <linux/ioport.h>
12#include <linux/skbuff.h>
13
14#define TX_PAGES 12 /* Two Tx slots */
15
16#define ETHER_ADDR_LEN 6
17
18/* The 8390 specific per-packet-header format. */
19struct e8390_pkt_hdr {
20 unsigned char status; /* status */
21 unsigned char next; /* pointer to next packet. */
22 unsigned short count; /* header + packet length in bytes */
23};
24
25#ifdef notdef
26extern int ei_debug;
27#else
28#define ei_debug 1
29#endif
30
31#ifdef CONFIG_NET_POLL_CONTROLLER
32extern void ei_poll(struct net_device *dev);
33#endif
34
35extern void NS8390_init(struct net_device *dev, int startp);
36extern int ei_open(struct net_device *dev);
37extern int ei_close(struct net_device *dev);
David Howells7d12e782006-10-05 14:55:46 +010038extern irqreturn_t ei_interrupt(int irq, void *dev_id);
Linus Torvalds1da177e2005-04-16 15:20:36 -070039extern struct net_device *__alloc_ei_netdev(int size);
40static inline struct net_device *alloc_ei_netdev(void)
41{
42 return __alloc_ei_netdev(0);
43}
44
45/* You have one of these per-board */
46struct ei_device {
47 const char *name;
48 void (*reset_8390)(struct net_device *);
49 void (*get_8390_hdr)(struct net_device *, struct e8390_pkt_hdr *, int);
50 void (*block_output)(struct net_device *, int, const unsigned char *, int);
51 void (*block_input)(struct net_device *, int, struct sk_buff *, int);
52 unsigned long rmem_start;
53 unsigned long rmem_end;
54 void __iomem *mem;
55 unsigned char mcfilter[8];
56 unsigned open:1;
57 unsigned word16:1; /* We have the 16-bit (vs 8-bit) version of the card. */
58 unsigned bigendian:1; /* 16-bit big endian mode. Do NOT */
59 /* set this on random 8390 clones! */
60 unsigned txing:1; /* Transmit Active */
61 unsigned irqlock:1; /* 8390's intrs disabled when '1'. */
62 unsigned dmaing:1; /* Remote DMA Active */
63 unsigned char tx_start_page, rx_start_page, stop_page;
64 unsigned char current_page; /* Read pointer in buffer */
65 unsigned char interface_num; /* Net port (AUI, 10bT.) to use. */
66 unsigned char txqueue; /* Tx Packet buffer queue length. */
67 short tx1, tx2; /* Packet lengths for ping-pong tx. */
68 short lasttx; /* Alpha version consistency check. */
69 unsigned char reg0; /* Register '0' in a WD8013 */
70 unsigned char reg5; /* Register '5' in a WD8013 */
71 unsigned char saved_irq; /* Original dev->irq value. */
72 struct net_device_stats stat; /* The new statistics table. */
73 u32 *reg_offset; /* Register mapping table */
74 spinlock_t page_lock; /* Page register locks */
75 unsigned long priv; /* Private field to store bus IDs etc. */
Ben Dooks825a2ff2007-07-03 16:53:09 +010076#ifdef AX88796_PLATFORM
77 unsigned char rxcr_base; /* default value for RXCR */
78#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -070079};
80
81/* The maximum number of 8390 interrupt service routines called per IRQ. */
82#define MAX_SERVICE 12
83
84/* The maximum time waited (in jiffies) before assuming a Tx failed. (20ms) */
85#define TX_TIMEOUT (20*HZ/100)
86
87#define ei_status (*(struct ei_device *)netdev_priv(dev))
88
89/* Some generic ethernet register configurations. */
90#define E8390_TX_IRQ_MASK 0xa /* For register EN0_ISR */
91#define E8390_RX_IRQ_MASK 0x5
Ben Dooks825a2ff2007-07-03 16:53:09 +010092
93#ifdef AX88796_PLATFORM
94#define E8390_RXCONFIG (ei_status.rxcr_base | 0x04)
95#define E8390_RXOFF (ei_status.rxcr_base | 0x20)
96#else
Linus Torvalds1da177e2005-04-16 15:20:36 -070097#define E8390_RXCONFIG 0x4 /* EN0_RXCR: broadcasts, no multicast,errors */
98#define E8390_RXOFF 0x20 /* EN0_RXCR: Accept no packets */
Ben Dooks825a2ff2007-07-03 16:53:09 +010099#endif
100
Linus Torvalds1da177e2005-04-16 15:20:36 -0700101#define E8390_TXCONFIG 0x00 /* EN0_TXCR: Normal transmit mode */
102#define E8390_TXOFF 0x02 /* EN0_TXCR: Transmitter off */
103
Ben Dooks825a2ff2007-07-03 16:53:09 +0100104
Linus Torvalds1da177e2005-04-16 15:20:36 -0700105/* Register accessed at EN_CMD, the 8390 base addr. */
106#define E8390_STOP 0x01 /* Stop and reset the chip */
107#define E8390_START 0x02 /* Start the chip, clear reset */
108#define E8390_TRANS 0x04 /* Transmit a frame */
109#define E8390_RREAD 0x08 /* Remote read */
110#define E8390_RWRITE 0x10 /* Remote write */
111#define E8390_NODMA 0x20 /* Remote DMA */
112#define E8390_PAGE0 0x00 /* Select page chip registers */
113#define E8390_PAGE1 0x40 /* using the two high-order bits */
114#define E8390_PAGE2 0x80 /* Page 3 is invalid. */
115
116/*
117 * Only generate indirect loads given a machine that needs them.
118 * - removed AMIGA_PCMCIA from this list, handled as ISA io now
119 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400120
Al Viro6c3561b2006-10-10 00:19:36 +0100121#ifndef ei_inb
122#define ei_inb(_p) inb(_p)
123#define ei_outb(_v,_p) outb(_v,_p)
124#define ei_inb_p(_p) inb_p(_p)
125#define ei_outb_p(_v,_p) outb_p(_v,_p)
126#endif
127
128#ifndef EI_SHIFT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700129#define EI_SHIFT(x) (x)
130#endif
131
132#define E8390_CMD EI_SHIFT(0x00) /* The command register (for all pages) */
133/* Page 0 register offsets. */
134#define EN0_CLDALO EI_SHIFT(0x01) /* Low byte of current local dma addr RD */
135#define EN0_STARTPG EI_SHIFT(0x01) /* Starting page of ring bfr WR */
136#define EN0_CLDAHI EI_SHIFT(0x02) /* High byte of current local dma addr RD */
137#define EN0_STOPPG EI_SHIFT(0x02) /* Ending page +1 of ring bfr WR */
138#define EN0_BOUNDARY EI_SHIFT(0x03) /* Boundary page of ring bfr RD WR */
139#define EN0_TSR EI_SHIFT(0x04) /* Transmit status reg RD */
140#define EN0_TPSR EI_SHIFT(0x04) /* Transmit starting page WR */
141#define EN0_NCR EI_SHIFT(0x05) /* Number of collision reg RD */
142#define EN0_TCNTLO EI_SHIFT(0x05) /* Low byte of tx byte count WR */
143#define EN0_FIFO EI_SHIFT(0x06) /* FIFO RD */
144#define EN0_TCNTHI EI_SHIFT(0x06) /* High byte of tx byte count WR */
145#define EN0_ISR EI_SHIFT(0x07) /* Interrupt status reg RD WR */
146#define EN0_CRDALO EI_SHIFT(0x08) /* low byte of current remote dma address RD */
147#define EN0_RSARLO EI_SHIFT(0x08) /* Remote start address reg 0 */
148#define EN0_CRDAHI EI_SHIFT(0x09) /* high byte, current remote dma address RD */
149#define EN0_RSARHI EI_SHIFT(0x09) /* Remote start address reg 1 */
150#define EN0_RCNTLO EI_SHIFT(0x0a) /* Remote byte count reg WR */
151#define EN0_RCNTHI EI_SHIFT(0x0b) /* Remote byte count reg WR */
152#define EN0_RSR EI_SHIFT(0x0c) /* rx status reg RD */
153#define EN0_RXCR EI_SHIFT(0x0c) /* RX configuration reg WR */
154#define EN0_TXCR EI_SHIFT(0x0d) /* TX configuration reg WR */
155#define EN0_COUNTER0 EI_SHIFT(0x0d) /* Rcv alignment error counter RD */
156#define EN0_DCFG EI_SHIFT(0x0e) /* Data configuration reg WR */
157#define EN0_COUNTER1 EI_SHIFT(0x0e) /* Rcv CRC error counter RD */
158#define EN0_IMR EI_SHIFT(0x0f) /* Interrupt mask reg WR */
159#define EN0_COUNTER2 EI_SHIFT(0x0f) /* Rcv missed frame error counter RD */
160
161/* Bits in EN0_ISR - Interrupt status register */
162#define ENISR_RX 0x01 /* Receiver, no error */
163#define ENISR_TX 0x02 /* Transmitter, no error */
164#define ENISR_RX_ERR 0x04 /* Receiver, with error */
165#define ENISR_TX_ERR 0x08 /* Transmitter, with error */
166#define ENISR_OVER 0x10 /* Receiver overwrote the ring */
167#define ENISR_COUNTERS 0x20 /* Counters need emptying */
168#define ENISR_RDC 0x40 /* remote dma complete */
169#define ENISR_RESET 0x80 /* Reset completed */
170#define ENISR_ALL 0x3f /* Interrupts we will enable */
171
172/* Bits in EN0_DCFG - Data config register */
173#define ENDCFG_WTS 0x01 /* word transfer mode selection */
174#define ENDCFG_BOS 0x02 /* byte order selection */
175
176/* Page 1 register offsets. */
177#define EN1_PHYS EI_SHIFT(0x01) /* This board's physical enet addr RD WR */
178#define EN1_PHYS_SHIFT(i) EI_SHIFT(i+1) /* Get and set mac address */
179#define EN1_CURPAG EI_SHIFT(0x07) /* Current memory page RD WR */
180#define EN1_MULT EI_SHIFT(0x08) /* Multicast filter mask array (8 bytes) RD WR */
181#define EN1_MULT_SHIFT(i) EI_SHIFT(8+i) /* Get and set multicast filter */
182
183/* Bits in received packet status byte and EN0_RSR*/
184#define ENRSR_RXOK 0x01 /* Received a good packet */
185#define ENRSR_CRC 0x02 /* CRC error */
186#define ENRSR_FAE 0x04 /* frame alignment error */
187#define ENRSR_FO 0x08 /* FIFO overrun */
188#define ENRSR_MPA 0x10 /* missed pkt */
189#define ENRSR_PHY 0x20 /* physical/multicast address */
190#define ENRSR_DIS 0x40 /* receiver disable. set in monitor mode */
191#define ENRSR_DEF 0x80 /* deferring */
192
193/* Transmitted packet status, EN0_TSR. */
194#define ENTSR_PTX 0x01 /* Packet transmitted without error */
195#define ENTSR_ND 0x02 /* The transmit wasn't deferred. */
196#define ENTSR_COL 0x04 /* The transmit collided at least once. */
197#define ENTSR_ABT 0x08 /* The transmit collided 16 times, and was deferred. */
198#define ENTSR_CRS 0x10 /* The carrier sense was lost. */
199#define ENTSR_FU 0x20 /* A "FIFO underrun" occurred during transmit. */
200#define ENTSR_CDH 0x40 /* The collision detect "heartbeat" signal was lost. */
201#define ENTSR_OWC 0x80 /* There was an out-of-window collision. */
202
203#endif /* _8390_h */