if_csreg.h revision 37785
1/*
2 * Copyright (c) 1997,1998 Maxim Bolotin and Oleg Sharoiko.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice unmodified, this list of conditions, and the following
10 *    disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
27 */
28
29/*
30 * $Id: if_csreg.h,v 1.7 1998/07/19 16:13:39 root Exp root $
31 */
32
33#define PP_ChipID 0x0000	/* offset   0h -> Corp -ID              */
34				/* offset   2h -> Model/Product Number  */
35				/* offset   3h -> Chip Revision Number  */
36
37#define PP_ISAIOB		0x0020	/*  IO base address */
38#define	PP_CS8900_ISAINT	0x0022	/*  ISA interrupt select */
39#define	PP_CS8900_ISADMA	0x0024	/*  ISA Rec DMA channel */
40#define PP_CS8920_ISAINT	0x0370	/*  ISA interrupt select */
41#define PP_CS8920_ISADMA 	0x0374	/*  ISA Rec DMA channel */
42#define PP_ISASOF		0x0026	/*  ISA DMA offset */
43#define PP_DmaFrameCnt		0x0028	/*  ISA DMA Frame count */
44#define PP_DmaByteCnt		0x002A	/*  ISA DMA Byte count */
45#define PP_CS8920_ISAMemB	0x0348	/*  Memory base */
46
47/* EEPROM data and command registers */
48#define PP_EECMD		0x0040	/*  NVR Interface Command register */
49#define PP_EEData		0x0042	/*  NVR Interface Data Register */
50#define PP_DebugReg		0x0044	/*  Debug Register */
51
52#define PP_RxCFG		0x0102	/*  Rx Bus config */
53#define PP_RxCTL		0x0104	/*  Receive Control Register */
54#define PP_TxCFG		0x0106	/*  Transmit Config Register */
55#define PP_TxCMD		0x0108	/*  Transmit Command Register */
56#define PP_BufCFG		0x010A	/*  Bus configuration Register */
57#define PP_LineCTL		0x0112	/*  Line Config Register */
58#define PP_SelfCTL		0x0114	/*  Self Command Register */
59#define PP_BusCTL		0x0116	/*  ISA bus control Register */
60#define PP_TestCTL		0x0118	/*  Test Register */
61#define PP_AutoNegCTL		0x011C	/*  Auto Negotiation Ctrl */
62
63#define PP_ISQ			0x0120	/*  Interrupt Status */
64#define PP_RxEvent		0x0124	/*  Rx Event Register */
65#define PP_TxEvent		0x0128	/*  Tx Event Register */
66#define PP_BufEvent		0x012C	/*  Bus Event Register */
67#define PP_RxMiss		0x0130	/*  Receive Miss Count */
68#define PP_TxCol		0x0132	/*  Transmit Collision Count */
69#define PP_LineST		0x0134	/*  Line State Register */
70#define PP_SelfST		0x0136	/*  Self State register */
71#define PP_BusST		0x0138	/*  Bus Status */
72#define PP_TDR			0x013C	/*  Time Domain Reflectometry */
73#define PP_AutoNegST		0x013E	/*  Auto Neg Status */
74#define PP_TxCommand		0x0144	/*  Tx Command */
75#define PP_TxLength		0x0146	/*  Tx Length */
76#define PP_LAF			0x0150	/*  Hash Table */
77#define PP_IA			0x0158	/*  Physical Address Register */
78
79#define PP_RxStatus		0x0400	/*  Receive start of frame */
80#define PP_RxLength		0x0402	/*  Receive Length of frame */
81#define PP_RxFrame		0x0404	/*  Receive frame pointer */
82#define PP_TxFrame		0x0A00	/*  Transmit frame pointer */
83
84/*
85 *  Primary I/O Base Address. If no I/O base is supplied by the user, then this
86 *  can be used as the default I/O base to access the PacketPage Area.
87 */
88#define DEFAULTIOBASE		0x0300
89#define FIRST_IO		0x020C	/*  First I/O port to check */
90#define LAST_IO			0x037C	/*  Last I/O port to check (+10h) */
91#define ADD_MASK		0x3000	/*  Mask it use of the ADD_PORT register */
92#define ADD_SIG			0x3000	/*  Expected ID signature */
93
94#define CHIP_EISA_ID_SIG	0x630E	/*  Product ID Code for Crystal Chip (CS8900 spec 4.3) */
95
96#define PRODUCT_ID_ADD		0x0002	/*  Address of product ID */
97
98/*  Mask to find out the types of  registers */
99#define REG_TYPE_MASK		0x001F
100
101/*  Eeprom Commands */
102#define ERSE_WR_ENBL		0x00F0
103#define ERSE_WR_DISABLE		0x0000
104
105/*  Defines Control/Config register quintuplet numbers */
106#define RX_BUF_CFG		0x0003
107#define RX_CONTROL		0x0005
108#define TX_CFG			0x0007
109#define TX_COMMAND		0x0009
110#define BUF_CFG			0x000B
111#define LINE_CONTROL		0x0013
112#define SELF_CONTROL		0x0015
113#define BUS_CONTROL		0x0017
114#define TEST_CONTROL		0x0019
115
116/*  Defines Status/Count registers quintuplet numbers */
117#define RX_EVENT		0x0004
118#define TX_EVENT		0x0008
119#define BUF_EVENT		0x000C
120#define RX_MISS_COUNT		0x0010
121#define TX_COL_COUNT		0x0012
122#define LINE_STATUS		0x0014
123#define SELF_STATUS		0x0016
124#define BUS_STATUS		0x0018
125#define TDR			0x001C
126
127/*
128 * PP_RxCFG - Receive  Configuration and Interrupt Mask
129 *			 bit definition -  Read/write
130 */
131#define SKIP_1			0x0040
132#define RX_STREAM_ENBL		0x0080
133#define RX_OK_ENBL		0x0100
134#define RX_DMA_ONLY		0x0200
135#define AUTO_RX_DMA		0x0400
136#define BUFFER_CRC		0x0800
137#define RX_CRC_ERROR_ENBL	0x1000
138#define RX_RUNT_ENBL		0x2000
139#define RX_EXTRA_DATA_ENBL	0x4000
140
141/* PP_RxCTL - Receive Control bit definition - Read/write */
142#define RX_IA_HASH_ACCEPT	0x0040
143#define RX_PROM_ACCEPT		0x0080
144#define RX_OK_ACCEPT		0x0100
145#define RX_MULTCAST_ACCEPT	0x0200
146#define RX_IA_ACCEPT		0x0400
147#define RX_BROADCAST_ACCEPT	0x0800
148#define RX_BAD_CRC_ACCEPT	0x1000
149#define RX_RUNT_ACCEPT		0x2000
150#define RX_EXTRA_DATA_ACCEPT	0x4000
151#define RX_ALL_ACCEPT		(RX_PROM_ACCEPT | RX_BAD_CRC_ACCEPT |	\
152				 RX_RUNT_ACCEPT | RX_EXTRA_DATA_ACCEPT)
153/*
154 *  Default receive mode - individually addressed, broadcast, and error free
155 */
156#define RX_DEF_ACCEPT (RX_IA_ACCEPT | RX_BROADCAST_ACCEPT | RX_OK_ACCEPT)
157
158/*
159 * PP_TxCFG - Transmit Configuration Interrupt Mask
160 *			 bit definition - Read/write
161 */
162#define TX_LOST_CRS_ENBL	0x0040
163#define TX_SQE_ERROR_ENBL	0x0080
164#define TX_OK_ENBL		0x0100
165#define TX_LATE_COL_ENBL	0x0200
166#define TX_JBR_ENBL		0x0400
167#define TX_ANY_COL_ENBL		0x0800
168#define TX_16_COL_ENBL		0x8000
169
170/*
171 * PP_TxCMD - Transmit Command bit definition - Read-only
172 */
173#define TX_START_4_BYTES	0x0000
174#define TX_START_64_BYTES	0x0040
175#define TX_START_128_BYTES	0x0080
176#define TX_START_ALL_BYTES	0x00C0
177#define TX_FORCE		0x0100
178#define TX_ONE_COL		0x0200
179#define TX_TWO_PART_DEFF_DISABLE 0x0400
180#define TX_NO_CRC		0x1000
181#define TX_RUNT			0x2000
182
183/*
184 * PP_BufCFG - Buffer Configuration Interrupt Mask
185 *			 bit definition - Read/write
186 */
187#define GENERATE_SW_INTERRUPT	0x0040
188#define RX_DMA_ENBL		0x0080
189#define READY_FOR_TX_ENBL	0x0100
190#define TX_UNDERRUN_ENBL	0x0200
191#define RX_MISS_ENBL		0x0400
192#define RX_128_BYTE_ENBL	0x0800
193#define TX_COL_COUNT_OVRFLOW_ENBL 0x1000
194#define RX_MISS_COUNT_OVRFLOW_ENBL 0x2000
195#define RX_DEST_MATCH_ENBL	0x8000
196
197/*
198 * PP_LineCTL - Line Control bit definition - Read/write
199 */
200#define SERIAL_RX_ON		0x0040
201#define SERIAL_TX_ON		0x0080
202#define AUI_ONLY		0x0100
203#define AUTO_AUI_10BASET	0x0200
204#define MODIFIED_BACKOFF	0x0800
205#define NO_AUTO_POLARITY	0x1000
206#define TWO_PART_DEFDIS		0x2000
207#define LOW_RX_SQUELCH		0x4000
208
209/*
210 * PP_SelfCTL - Software Self Control bit definition - Read/write
211 */
212#define POWER_ON_RESET		0x0040
213#define SW_STOP			0x0100
214#define SLEEP_ON		0x0200
215#define AUTO_WAKEUP		0x0400
216#define HCB0_ENBL		0x1000
217#define HCB1_ENBL		0x2000
218#define HCB0			0x4000
219#define HCB1			0x8000
220
221/*
222 * PP_BusCTL - ISA Bus Control bit definition - Read/write
223 */
224#define RESET_RX_DMA		0x0040
225#define MEMORY_ON		0x0400
226#define DMA_BURST_MODE		0x0800
227#define IO_CHANNEL_READY_ON	0x1000
228#define RX_DMA_SIZE_64Ks	0x2000
229#define ENABLE_IRQ		0x8000
230
231/*
232 * PP_TestCTL - Test Control bit definition - Read/write
233 */
234#define LINK_OFF		0x0080
235#define ENDEC_LOOPBACK		0x0200
236#define AUI_LOOPBACK		0x0400
237#define BACKOFF_OFF		0x0800
238#define FAST_TEST		0x8000
239
240/*
241 * PP_RxEvent - Receive Event Bit definition - Read-only
242 */
243#define RX_IA_HASHED		0x0040
244#define RX_DRIBBLE		0x0080
245#define RX_OK			0x0100
246#define RX_HASHED		0x0200
247#define RX_IA			0x0400
248#define RX_BROADCAST		0x0800
249#define RX_CRC_ERROR		0x1000
250#define RX_RUNT			0x2000
251#define RX_EXTRA_DATA		0x4000
252
253#define HASH_INDEX_MASK		0x0FC00
254
255/*
256 * PP_TxEvent - Transmit Event Bit definition - Read-only
257 */
258#define TX_LOST_CRS		0x0040
259#define TX_SQE_ERROR		0x0080
260#define TX_OK			0x0100
261#define TX_LATE_COL		0x0200
262#define TX_JBR			0x0400
263#define TX_16_COL		0x8000
264#define TX_SEND_OK_BITS		(TX_OK | TX_LOST_CRS)
265#define TX_COL_COUNT_MASK	0x7800
266
267/*
268 * PP_BufEvent - Buffer Event Bit definition - Read-only
269 */
270#define SW_INTERRUPT		0x0040
271#define RX_DMA			0x0080
272#define READY_FOR_TX		0x0100
273#define TX_UNDERRUN		0x0200
274#define RX_MISS			0x0400
275#define RX_128_BYTE		0x0800
276#define TX_COL_OVRFLW		0x1000
277#define RX_MISS_OVRFLW		0x2000
278#define RX_DEST_MATCH		0x8000
279
280/*
281 * PP_LineST - Ethernet Line Status bit definition - Read-only
282 */
283#define LINK_OK			0x0080
284#define AUI_ON			0x0100
285#define TENBASET_ON		0x0200
286#define POLARITY_OK		0x1000
287#define CRS_OK			0x4000
288
289/*
290 * PP_SelfST - Chip Software Status bit definition
291 */
292#define ACTIVE_33V		0x0040
293#define INIT_DONE		0x0080
294#define SI_BUSY			0x0100
295#define EEPROM_PRESENT		0x0200
296#define EEPROM_OK		0x0400
297#define EL_PRESENT		0x0800
298#define EE_SIZE_64		0x1000
299
300/*
301 * PP_BusST - ISA Bus Status bit definition
302 */
303#define TX_BID_ERROR		0x0080
304#define READY_FOR_TX_NOW	0x0100
305
306/*
307 * PP_AutoNegCTL - Auto Negotiation Control bit definition
308 */
309#define RE_NEG_NOW		0x0040
310#define ALLOW_FDX		0x0080
311#define AUTO_NEG_ENABLE		0x0100
312#define NLP_ENABLE		0x0200
313#define FORCE_FDX		0x8000
314#define AUTO_NEG_BITS		(FORCE_FDX | NLP_ENABLE | AUTO_NEG_ENABLE)
315#define AUTO_NEG_MASK		(FORCE_FDX | NLP_ENABLE | AUTO_NEG_ENABLE | \
316				 ALLOW_FDX | RE_NEG_NOW)
317
318/*
319 * PP_AutoNegST - Auto Negotiation Status bit definition
320 */
321#define AUTO_NEG_BUSY		0x0080
322#define FLP_LINK		0x0100
323#define FLP_LINK_GOOD		0x0800
324#define LINK_FAULT		0x1000
325#define HDX_ACTIVE		0x4000
326#define FDX_ACTIVE		0x8000
327
328/*
329 * The following block defines the ISQ event types
330 */
331#define ISQ_RECEIVER_EVENT	0x04
332#define ISQ_TRANSMITTER_EVENT	0x08
333#define ISQ_BUFFER_EVENT	0x0c
334#define ISQ_RX_MISS_EVENT	0x10
335#define ISQ_TX_COL_EVENT	0x12
336
337#define ISQ_EVENT_MASK		0x003F	/* ISQ mask to find out type of event */
338#define ISQ_HIST		16	/* small history buffer */
339#define AUTOINCREMENT		0x8000	/* Bit mask to set bit-15 for autoincrement */
340
341#define TXRXBUFSIZE		0x0600
342#define RXDMABUFSIZE		0x8000
343#define RXDMASIZE		0x4000
344#define TXRX_LENGTH_MASK	0x07FF
345
346/*  rx options bits */
347#define RCV_WITH_RXON		1       /*  Set SerRx ON */
348#define RCV_COUNTS		2       /*  Use Framecnt1 */
349#define RCV_PONG		4       /*  Pong respondent */
350#define RCV_DONG		8       /*  Dong operation */
351#define RCV_POLLING		0x10	/*  Poll RxEvent */
352#define RCV_ISQ			0x20	/*  Use ISQ, int */
353#define RCV_AUTO_DMA		0x100	/*  Set AutoRxDMAE */
354#define RCV_DMA			0x200	/*  Set RxDMA only */
355#define RCV_DMA_ALL		0x400	/*  Copy all DMA'ed */
356#define RCV_FIXED_DATA		0x800	/*  Every frame same */
357#define RCV_IO			0x1000	/*  Use ISA IO only */
358#define RCV_MEMORY		0x2000	/*  Use ISA Memory */
359
360#define RAM_SIZE		0x1000      /*  The card has 4k bytes or RAM */
361#define PKT_START		PP_TxFrame  /*  Start of packet RAM */
362
363#define RX_FRAME_PORT		0x0000
364#define TX_FRAME_PORT		RX_FRAME_PORT
365#define TX_CMD_PORT		0x0004
366#define TX_CS8900_NOW		0x0000  /* Tx packet after   5 bytes copied */
367#define TX_CS8900_AFTER_381	0x0020  /* Tx packet after 381 bytes copied */
368#define TX_CS8900_AFTER_ALL	0x0060  /* Tx packet after all bytes copied */
369#define TX_CS8920_NOW		0x0000  /* Tx packet after   5 bytes copied */
370#define TX_CS8920_AFTER_381	0x0040  /* Tx packet after 381 bytes copied */
371#define TX_CS8920_AFTER_1021	0x0080  /* Tx packet after1021 bytes copied */
372#define TX_CS8920_AFTER_ALL	0x00C0  /* Tx packet after all bytes copied */
373#define TX_LEN_PORT		0x0006
374#define ISQ_PORT		0x0008
375#define ADD_PORT		0x000A
376#define DATA_PORT		0x000C
377
378#define EEPROM_WRITE_EN		0x00F0
379#define EEPROM_WRITE_DIS	0x0000
380#define EEPROM_WRITE_CMD	0x0100
381#define EEPROM_READ_CMD		0x0200
382
383/*  Receive Header
384 *  Description of header of each packet in receive area of memory
385 */
386#define RBUF_EVENT_LOW	0  /* Low byte of RxEvent - status of received frame */
387#define RBUF_EVENT_HIGH	1  /* High byte of RxEvent - status of received frame */
388#define RBUF_LEN_LOW	2  /* Length of received data - low byte */
389#define RBUF_LEN_HI	3  /* Length of received data - high byte */
390#define RBUF_HEAD_LEN	4  /* Length of this header */
391
392#define CHIP_READ 0x1  /* Used to mark state of the repins code (chip or dma) */
393#define DMA_READ  0x2  /* Used to mark state of the repins code (chip or dma) */
394
395/*  for bios scan */
396/*  */
397#ifdef CSDEBUG
398/*  use these values for debugging bios scan */
399#define BIOS_START_SEG		0x00000
400#define BIOS_OFFSET_INC		0x0010
401#else
402#define BIOS_START_SEG		0x0c000
403#define BIOS_OFFSET_INC		0x0200
404#endif
405
406#define BIOS_LAST_OFFSET	0x0fc00
407
408/*
409 *  Byte offsets into the EEPROM configuration buffer
410 */
411#define ISA_CNF_OFFSET		0x6
412#define TX_CTL_OFFSET		(ISA_CNF_OFFSET + 8)	/*  8900 eeprom */
413#define AUTO_NEG_CNF_OFFSET	(ISA_CNF_OFFSET + 8)	/*  8920 eeprom */
414
415/*
416 *  the assumption here is that the bits in the eeprom are generally
417 *  in the same position as those in the autonegctl register.
418 *  Of course the IMM bit is not in that register so it must be
419 *  masked out
420 */
421#define EE_FORCE_FDX		0x8000
422#define EE_NLP_ENABLE		0x0200
423#define EE_AUTO_NEG_ENABLE	0x0100
424#define EE_ALLOW_FDX		0x0080
425#define EE_AUTO_NEG_CNF_MASK	(EE_FORCE_FDX | EE_NLP_ENABLE | 	\
426				 EE_AUTO_NEG_ENABLE | EE_ALLOW_FDX)
427
428#define IMM_BIT			0x0040	/*  ignore missing media	 */
429
430#define ADAPTER_CNF_OFFSET	(AUTO_NEG_CNF_OFFSET + 2)
431#define A_CNF_MEDIA             0x0007
432#define A_CNF_10B_T		0x0001
433#define A_CNF_AUI		0x0002
434#define A_CNF_10B_2		0x0004
435#define A_CNF_MEDIA_TYPE	0x0060
436#define A_CNF_MEDIA_AUTO	0x0000
437#define A_CNF_MEDIA_10B_T	0x0020
438#define A_CNF_MEDIA_AUI		0x0040
439#define A_CNF_MEDIA_10B_2	0x0060
440#define A_CNF_DC_DC_POLARITY	0x0080
441#define A_CNF_NO_AUTO_POLARITY	0x2000
442#define A_CNF_LOW_RX_SQUELCH	0x4000
443#define A_CNF_EXTND_10B_2	0x8000
444
445#define PACKET_PAGE_OFFSET	0x8
446
447/*
448 *  Bit definitions for the ISA configuration word from the EEPROM
449 */
450#define INT_NO_MASK		0x000F
451#define DMA_NO_MASK		0x0070
452#define ISA_DMA_SIZE		0x0200
453#define ISA_AUTO_RxDMA		0x0400
454#define ISA_RxDMA		0x0800
455#define DMA_BURST		0x1000
456#define STREAM_TRANSFER		0x2000
457#define ANY_ISA_DMA		(ISA_AUTO_RxDMA | ISA_RxDMA)
458
459/*  DMA controller registers */
460#define DMA_BASE		0x00   /* DMA controller base */
461#define DMA_BASE_2		0x0C0  /* DMA controller base */
462
463#define DMA_STAT		0x0D0  /* DMA controller status register */
464#define DMA_MASK		0x0D4  /* DMA controller mask register */
465#define DMA_MODE		0x0D6  /* DMA controller mode register */
466#define DMA_RESETFF		0x0D8  /* DMA controller first/last flip flop */
467
468/*  DMA data */
469#define DMA_DISABLE		0x04   /*  Disable channel n */
470#define DMA_ENABLE		0x00   /*  Enable channel n */
471/*  Demand transfers, incr. address, auto init, writes, ch. n */
472#define DMA_RX_MODE		0x14
473/*  Demand transfers, incr. address, auto init, reads, ch. n */
474#define DMA_TX_MODE		0x18
475
476#define DMA_SIZE		(16*1024)	/* Size of dma buffer - 16k */
477
478#define CS8900			0x0000
479#define CS8920			0x4000
480#define CS8920M			0x6000
481#define REVISON_BITS		0x1F00
482#define EEVER_NUMBER		0x12
483#define CHKSUM_LEN		0x14
484#define CHKSUM_VAL		0x0000
485#define START_EEPROM_DATA	0x001c /* Offset into eeprom for start of data */
486#define IRQ_MAP_EEPROM_DATA	0x0046 /* Offset into eeprom for the IRQ map */
487#define IRQ_MAP_LEN		0x0004 /* No of bytes to read for the IRQ map */
488#define PNP_IRQ_FRMT		0x0022 /* PNP small item IRQ format */
489#define CS8900_IRQ_MAP		0x1c20 /* This IRQ map is fixed */
490
491#define CS8920_NO_INTS		0x0F   /*  Max CS8920 interrupt select # */
492
493#define PNP_ADD_PORT		0x0279
494#define PNP_WRITE_PORT		0x0A79
495
496#define GET_PNP_ISA_STRUCT	0x40
497#define PNP_ISA_STRUCT_LEN	0x06
498#define PNP_CSN_CNT_OFF		0x01
499#define PNP_RD_PORT_OFF		0x02
500#define PNP_FUNCTION_OK		0x00
501#define PNP_WAKE		0x03
502#define PNP_RSRC_DATA		0x04
503#define PNP_RSRC_READY		0x01
504#define PNP_STATUS		0x05
505#define PNP_ACTIVATE		0x30
506#define PNP_CNF_IO_H		0x60
507#define PNP_CNF_IO_L		0x61
508#define PNP_CNF_INT		0x70
509#define PNP_CNF_DMA		0x74
510#define PNP_CNF_MEM		0x48
511
512#define BIT0			1
513#define BIT15			0x8000
514
515#define	CS_DUPLEX_AUTO		0
516#define CS_DUPLEX_FULL		1
517#define CS_DUPLEX_HALF		2
518
519/* Device name */
520#define CS_NAME			"cs"
521
522#define cs_readreg(iobase, portno) \
523	(outw((iobase) + ADD_PORT, (portno)), \
524	inw((iobase) + DATA_PORT))
525#define cs_writereg(iobase, portno, value) \
526	(outw((iobase) + ADD_PORT, (portno)), \
527	outw((iobase) + DATA_PORT, (value)))
528#define cs_readword(iobase, portno) \
529	(inw((iobase) + (portno)))
530#define cs_writeword(iobase, portno, value) \
531	(outw((iobase) + (portno), (value)))
532
533#define reset_chip(nic_addr) \
534	cs_writereg(nic_addr, PP_SelfCTL, cs_readreg(ioaddr, PP_SelfCTL) | POWER_ON_RESET), \
535	DELAY(30000)
536
537#define cs_duplex_full(sc) \
538        (cs_writereg(sc->nic_addr, PP_AutoNegCTL, FORCE_FDX))
539
540#define cs_duplex_half(sc) \
541        (cs_writereg(sc->nic_addr, PP_AutoNegCTL, NLP_ENABLE))
542
543