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1/* 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
10#include <linux/if_ether.h>
11#include <linux/ioport.h>
12#include <linux/irqreturn.h>
13#include <linux/skbuff.h>
14
15#define TX_PAGES 12 /* Two Tx slots */
16
17#define ETHER_ADDR_LEN 6
18
19/* The 8390 specific per-packet-header format. */
20struct e8390_pkt_hdr {
21 unsigned char status; /* status */
22 unsigned char next; /* pointer to next packet. */
23 unsigned short count; /* header + packet length in bytes */
24};
25
26#ifdef notdef
27extern int ei_debug;
28#else
29#define ei_debug 1
30#endif
31
32#ifdef CONFIG_NET_POLL_CONTROLLER
33extern void ei_poll(struct net_device *dev);
34extern void eip_poll(struct net_device *dev);
35#endif
36
37
38/* Without I/O delay - non ISA or later chips */
39extern void NS8390_init(struct net_device *dev, int startp);
40extern int ei_open(struct net_device *dev);
41extern int ei_close(struct net_device *dev);
42extern irqreturn_t ei_interrupt(int irq, void *dev_id);
43extern void ei_tx_timeout(struct net_device *dev);
44extern netdev_tx_t ei_start_xmit(struct sk_buff *skb, struct net_device *dev);
45extern void ei_set_multicast_list(struct net_device *dev);
46extern struct net_device_stats *ei_get_stats(struct net_device *dev);
47
48extern const struct net_device_ops ei_netdev_ops;
49
50extern struct net_device *__alloc_ei_netdev(int size);
51static inline struct net_device *alloc_ei_netdev(void)
52{
53 return __alloc_ei_netdev(0);
54}
55
56/* With I/O delay form */
57extern void NS8390p_init(struct net_device *dev, int startp);
58extern int eip_open(struct net_device *dev);
59extern int eip_close(struct net_device *dev);
60extern irqreturn_t eip_interrupt(int irq, void *dev_id);
61extern void eip_tx_timeout(struct net_device *dev);
62extern netdev_tx_t eip_start_xmit(struct sk_buff *skb, struct net_device *dev);
63extern void eip_set_multicast_list(struct net_device *dev);
64extern struct net_device_stats *eip_get_stats(struct net_device *dev);
65
66extern const struct net_device_ops eip_netdev_ops;
67
68extern struct net_device *__alloc_eip_netdev(int size);
69static inline struct net_device *alloc_eip_netdev(void)
70{
71 return __alloc_eip_netdev(0);
72}
73
74/* You have one of these per-board */
75struct ei_device {
76 const char *name;
77 void (*reset_8390)(struct net_device *);
78 void (*get_8390_hdr)(struct net_device *, struct e8390_pkt_hdr *, int);
79 void (*block_output)(struct net_device *, int, const unsigned char *, int);
80 void (*block_input)(struct net_device *, int, struct sk_buff *, int);
81 unsigned long rmem_start;
82 unsigned long rmem_end;
83 void __iomem *mem;
84 unsigned char mcfilter[8];
85 unsigned open:1;
86 unsigned word16:1; /* We have the 16-bit (vs 8-bit) version of the card. */
87 unsigned bigendian:1; /* 16-bit big endian mode. Do NOT */
88 /* set this on random 8390 clones! */
89 unsigned txing:1; /* Transmit Active */
90 unsigned irqlock:1; /* 8390's intrs disabled when '1'. */
91 unsigned dmaing:1; /* Remote DMA Active */
92 unsigned char tx_start_page, rx_start_page, stop_page;
93 unsigned char current_page; /* Read pointer in buffer */
94 unsigned char interface_num; /* Net port (AUI, 10bT.) to use. */
95 unsigned char txqueue; /* Tx Packet buffer queue length. */
96 short tx1, tx2; /* Packet lengths for ping-pong tx. */
97 short lasttx; /* Alpha version consistency check. */
98 unsigned char reg0; /* Register '0' in a WD8013 */
99 unsigned char reg5; /* Register '5' in a WD8013 */
100 unsigned char saved_irq; /* Original dev->irq value. */
101 u32 *reg_offset; /* Register mapping table */
102 spinlock_t page_lock; /* Page register locks */
103 unsigned long priv; /* Private field to store bus IDs etc. */
104#ifdef AX88796_PLATFORM
105 unsigned char rxcr_base; /* default value for RXCR */
106#endif
107};
108
109/* The maximum number of 8390 interrupt service routines called per IRQ. */
110#define MAX_SERVICE 12
111
112/* The maximum time waited (in jiffies) before assuming a Tx failed. (20ms) */
113#define TX_TIMEOUT (20*HZ/100)
114
115#define ei_status (*(struct ei_device *)netdev_priv(dev))
116
117/* Some generic ethernet register configurations. */
118#define E8390_TX_IRQ_MASK 0xa /* For register EN0_ISR */
119#define E8390_RX_IRQ_MASK 0x5
120
121#ifdef AX88796_PLATFORM
122#define E8390_RXCONFIG (ei_status.rxcr_base | 0x04)
123#define E8390_RXOFF (ei_status.rxcr_base | 0x20)
124#else
125#define E8390_RXCONFIG 0x4 /* EN0_RXCR: broadcasts, no multicast,errors */
126#define E8390_RXOFF 0x20 /* EN0_RXCR: Accept no packets */
127#endif
128
129#define E8390_TXCONFIG 0x00 /* EN0_TXCR: Normal transmit mode */
130#define E8390_TXOFF 0x02 /* EN0_TXCR: Transmitter off */
131
132
133/* Register accessed at EN_CMD, the 8390 base addr. */
134#define E8390_STOP 0x01 /* Stop and reset the chip */
135#define E8390_START 0x02 /* Start the chip, clear reset */
136#define E8390_TRANS 0x04 /* Transmit a frame */
137#define E8390_RREAD 0x08 /* Remote read */
138#define E8390_RWRITE 0x10 /* Remote write */
139#define E8390_NODMA 0x20 /* Remote DMA */
140#define E8390_PAGE0 0x00 /* Select page chip registers */
141#define E8390_PAGE1 0x40 /* using the two high-order bits */
142#define E8390_PAGE2 0x80 /* Page 3 is invalid. */
143
144/*
145 * Only generate indirect loads given a machine that needs them.
146 * - removed AMIGA_PCMCIA from this list, handled as ISA io now
147 * - the _p for generates no delay by default 8390p.c overrides this.
148 */
149
150#ifndef ei_inb
151#define ei_inb(_p) inb(_p)
152#define ei_outb(_v,_p) outb(_v,_p)
153#define ei_inb_p(_p) inb(_p)
154#define ei_outb_p(_v,_p) outb(_v,_p)
155#endif
156
157#ifndef EI_SHIFT
158#define EI_SHIFT(x) (x)
159#endif
160
161#define E8390_CMD EI_SHIFT(0x00) /* The command register (for all pages) */
162/* Page 0 register offsets. */
163#define EN0_CLDALO EI_SHIFT(0x01) /* Low byte of current local dma addr RD */
164#define EN0_STARTPG EI_SHIFT(0x01) /* Starting page of ring bfr WR */
165#define EN0_CLDAHI EI_SHIFT(0x02) /* High byte of current local dma addr RD */
166#define EN0_STOPPG EI_SHIFT(0x02) /* Ending page +1 of ring bfr WR */
167#define EN0_BOUNDARY EI_SHIFT(0x03) /* Boundary page of ring bfr RD WR */
168#define EN0_TSR EI_SHIFT(0x04) /* Transmit status reg RD */
169#define EN0_TPSR EI_SHIFT(0x04) /* Transmit starting page WR */
170#define EN0_NCR EI_SHIFT(0x05) /* Number of collision reg RD */
171#define EN0_TCNTLO EI_SHIFT(0x05) /* Low byte of tx byte count WR */
172#define EN0_FIFO EI_SHIFT(0x06) /* FIFO RD */
173#define EN0_TCNTHI EI_SHIFT(0x06) /* High byte of tx byte count WR */
174#define EN0_ISR EI_SHIFT(0x07) /* Interrupt status reg RD WR */
175#define EN0_CRDALO EI_SHIFT(0x08) /* low byte of current remote dma address RD */
176#define EN0_RSARLO EI_SHIFT(0x08) /* Remote start address reg 0 */
177#define EN0_CRDAHI EI_SHIFT(0x09) /* high byte, current remote dma address RD */
178#define EN0_RSARHI EI_SHIFT(0x09) /* Remote start address reg 1 */
179#define EN0_RCNTLO EI_SHIFT(0x0a) /* Remote byte count reg WR */
180#define EN0_RCNTHI EI_SHIFT(0x0b) /* Remote byte count reg WR */
181#define EN0_RSR EI_SHIFT(0x0c) /* rx status reg RD */
182#define EN0_RXCR EI_SHIFT(0x0c) /* RX configuration reg WR */
183#define EN0_TXCR EI_SHIFT(0x0d) /* TX configuration reg WR */
184#define EN0_COUNTER0 EI_SHIFT(0x0d) /* Rcv alignment error counter RD */
185#define EN0_DCFG EI_SHIFT(0x0e) /* Data configuration reg WR */
186#define EN0_COUNTER1 EI_SHIFT(0x0e) /* Rcv CRC error counter RD */
187#define EN0_IMR EI_SHIFT(0x0f) /* Interrupt mask reg WR */
188#define EN0_COUNTER2 EI_SHIFT(0x0f) /* Rcv missed frame error counter RD */
189
190/* Bits in EN0_ISR - Interrupt status register */
191#define ENISR_RX 0x01 /* Receiver, no error */
192#define ENISR_TX 0x02 /* Transmitter, no error */
193#define ENISR_RX_ERR 0x04 /* Receiver, with error */
194#define ENISR_TX_ERR 0x08 /* Transmitter, with error */
195#define ENISR_OVER 0x10 /* Receiver overwrote the ring */
196#define ENISR_COUNTERS 0x20 /* Counters need emptying */
197#define ENISR_RDC 0x40 /* remote dma complete */
198#define ENISR_RESET 0x80 /* Reset completed */
199#define ENISR_ALL 0x3f /* Interrupts we will enable */
200
201/* Bits in EN0_DCFG - Data config register */
202#define ENDCFG_WTS 0x01 /* word transfer mode selection */
203#define ENDCFG_BOS 0x02 /* byte order selection */
204
205/* Page 1 register offsets. */
206#define EN1_PHYS EI_SHIFT(0x01) /* This board's physical enet addr RD WR */
207#define EN1_PHYS_SHIFT(i) EI_SHIFT(i+1) /* Get and set mac address */
208#define EN1_CURPAG EI_SHIFT(0x07) /* Current memory page RD WR */
209#define EN1_MULT EI_SHIFT(0x08) /* Multicast filter mask array (8 bytes) RD WR */
210#define EN1_MULT_SHIFT(i) EI_SHIFT(8+i) /* Get and set multicast filter */
211
212/* Bits in received packet status byte and EN0_RSR*/
213#define ENRSR_RXOK 0x01 /* Received a good packet */
214#define ENRSR_CRC 0x02 /* CRC error */
215#define ENRSR_FAE 0x04 /* frame alignment error */
216#define ENRSR_FO 0x08 /* FIFO overrun */
217#define ENRSR_MPA 0x10 /* missed pkt */
218#define ENRSR_PHY 0x20 /* physical/multicast address */
219#define ENRSR_DIS 0x40 /* receiver disable. set in monitor mode */
220#define ENRSR_DEF 0x80 /* deferring */
221
222/* Transmitted packet status, EN0_TSR. */
223#define ENTSR_PTX 0x01 /* Packet transmitted without error */
224#define ENTSR_ND 0x02 /* The transmit wasn't deferred. */
225#define ENTSR_COL 0x04 /* The transmit collided at least once. */
226#define ENTSR_ABT 0x08 /* The transmit collided 16 times, and was deferred. */
227#define ENTSR_CRS 0x10 /* The carrier sense was lost. */
228#define ENTSR_FU 0x20 /* A "FIFO underrun" occurred during transmit. */
229#define ENTSR_CDH 0x40 /* The collision detect "heartbeat" signal was lost. */
230#define ENTSR_OWC 0x80 /* There was an out-of-window collision. */
231
232#endif /* _8390_h */