xref: /openbmc/linux/drivers/net/ethernet/ti/tlan.h (revision 8e62d670)
1 #ifndef TLAN_H
2 #define TLAN_H
3 /********************************************************************
4  *
5  *  Linux ThunderLAN Driver
6  *
7  *  tlan.h
8  *  by James Banks
9  *
10  *  (C) 1997-1998 Caldera, Inc.
11  *  (C) 1999-2001 Torben Mathiasen
12  *
13  *  This software may be used and distributed according to the terms
14  *  of the GNU General Public License, incorporated herein by reference.
15  *
16  *
17  *  Dec 10, 1999	Torben Mathiasen <torben.mathiasen@compaq.com>
18  *			New Maintainer
19  *
20  ********************************************************************/
21 
22 
23 #include <linux/io.h>
24 #include <linux/types.h>
25 #include <linux/netdevice.h>
26 
27 
28 
29 	/*****************************************************************
30 	 * TLan Definitions
31 	 *
32 	 ****************************************************************/
33 
34 #define TLAN_MIN_FRAME_SIZE	64
35 #define TLAN_MAX_FRAME_SIZE	1600
36 
37 #define TLAN_NUM_RX_LISTS	32
38 #define TLAN_NUM_TX_LISTS	64
39 
40 #define TLAN_IGNORE		0
41 #define TLAN_RECORD		1
42 
43 #define TLAN_DBG(lvl, format, args...)					\
44 	do {								\
45 		if (debug&lvl)						\
46 			printk(KERN_DEBUG "TLAN: " format, ##args);	\
47 	} while (0)
48 
49 #define TLAN_DEBUG_GNRL		0x0001
50 #define TLAN_DEBUG_TX		0x0002
51 #define TLAN_DEBUG_RX		0x0004
52 #define TLAN_DEBUG_LIST		0x0008
53 #define TLAN_DEBUG_PROBE	0x0010
54 
55 #define TX_TIMEOUT		(10*HZ)	 /* We need time for auto-neg */
56 #define MAX_TLAN_BOARDS		8	 /* Max number of boards installed
57 					    at a time */
58 
59 
60 	/*****************************************************************
61 	 * Device Identification Definitions
62 	 *
63 	 ****************************************************************/
64 
65 #define PCI_DEVICE_ID_NETELLIGENT_10_T2			0xB012
66 #define PCI_DEVICE_ID_NETELLIGENT_10_100_WS_5100	0xB030
67 #ifndef PCI_DEVICE_ID_OLICOM_OC2183
68 #define PCI_DEVICE_ID_OLICOM_OC2183			0x0013
69 #endif
70 #ifndef PCI_DEVICE_ID_OLICOM_OC2325
71 #define PCI_DEVICE_ID_OLICOM_OC2325			0x0012
72 #endif
73 #ifndef PCI_DEVICE_ID_OLICOM_OC2326
74 #define PCI_DEVICE_ID_OLICOM_OC2326			0x0014
75 #endif
76 
77 struct tlan_adapter_entry {
78 	u16	vendor_id;
79 	u16	device_id;
80 	char	*device_label;
81 	u32	flags;
82 	u16	addr_ofs;
83 };
84 
85 #define TLAN_ADAPTER_NONE		0x00000000
86 #define TLAN_ADAPTER_UNMANAGED_PHY	0x00000001
87 #define TLAN_ADAPTER_BIT_RATE_PHY	0x00000002
88 #define TLAN_ADAPTER_USE_INTERN_10	0x00000004
89 #define TLAN_ADAPTER_ACTIVITY_LED	0x00000008
90 
91 #define TLAN_SPEED_DEFAULT	0
92 #define TLAN_SPEED_10		10
93 #define TLAN_SPEED_100		100
94 
95 #define TLAN_DUPLEX_DEFAULT	0
96 #define TLAN_DUPLEX_HALF	1
97 #define TLAN_DUPLEX_FULL	2
98 
99 
100 
101 	/*****************************************************************
102 	 * EISA Definitions
103 	 *
104 	 ****************************************************************/
105 
106 #define EISA_ID      0xc80   /* EISA ID Registers */
107 #define EISA_ID0     0xc80   /* EISA ID Register 0 */
108 #define EISA_ID1     0xc81   /* EISA ID Register 1 */
109 #define EISA_ID2     0xc82   /* EISA ID Register 2 */
110 #define EISA_ID3     0xc83   /* EISA ID Register 3 */
111 #define EISA_CR      0xc84   /* EISA Control Register */
112 #define EISA_REG0    0xc88   /* EISA Configuration Register 0 */
113 #define EISA_REG1    0xc89   /* EISA Configuration Register 1 */
114 #define EISA_REG2    0xc8a   /* EISA Configuration Register 2 */
115 #define EISA_REG3    0xc8f   /* EISA Configuration Register 3 */
116 #define EISA_APROM   0xc90   /* Ethernet Address PROM */
117 
118 
119 
120 	/*****************************************************************
121 	 * Rx/Tx List Definitions
122 	 *
123 	 ****************************************************************/
124 
125 #define TLAN_BUFFERS_PER_LIST	10
126 #define TLAN_LAST_BUFFER	0x80000000
127 #define TLAN_CSTAT_UNUSED	0x8000
128 #define TLAN_CSTAT_FRM_CMP	0x4000
129 #define TLAN_CSTAT_READY	0x3000
130 #define TLAN_CSTAT_EOC		0x0800
131 #define TLAN_CSTAT_RX_ERROR	0x0400
132 #define TLAN_CSTAT_PASS_CRC	0x0200
133 #define TLAN_CSTAT_DP_PR	0x0100
134 
135 
136 struct tlan_buffer {
137 	u32	count;
138 	u32	address;
139 };
140 
141 
142 struct tlan_list {
143 	u32		forward;
144 	u16		c_stat;
145 	u16		frame_size;
146 	struct tlan_buffer buffer[TLAN_BUFFERS_PER_LIST];
147 };
148 
149 
150 typedef u8 TLanBuffer[TLAN_MAX_FRAME_SIZE];
151 
152 
153 
154 
155 	/*****************************************************************
156 	 * PHY definitions
157 	 *
158 	 ****************************************************************/
159 
160 #define TLAN_PHY_MAX_ADDR	0x1F
161 #define TLAN_PHY_NONE		0x20
162 
163 
164 
165 
166 	/*****************************************************************
167 	 * TLAN Private Information Structure
168 	 *
169 	 ****************************************************************/
170 
171 struct tlan_priv {
172 	struct net_device       *next_device;
173 	struct pci_dev		*pci_dev;
174 	struct net_device       *dev;
175 	void			*dma_storage;
176 	dma_addr_t		dma_storage_dma;
177 	unsigned int		dma_size;
178 	u8			*pad_buffer;
179 	struct tlan_list	*rx_list;
180 	dma_addr_t		rx_list_dma;
181 	u8			*rx_buffer;
182 	dma_addr_t		rx_buffer_dma;
183 	u32			rx_head;
184 	u32			rx_tail;
185 	u32			rx_eoc_count;
186 	struct tlan_list	*tx_list;
187 	dma_addr_t		tx_list_dma;
188 	u8			*tx_buffer;
189 	dma_addr_t		tx_buffer_dma;
190 	u32			tx_head;
191 	u32			tx_in_progress;
192 	u32			tx_tail;
193 	u32			tx_busy_count;
194 	u32			phy_online;
195 	u32			timer_set_at;
196 	u32			timer_type;
197 	struct timer_list	timer;
198 	struct timer_list	media_timer;
199 	struct board		*adapter;
200 	u32			adapter_rev;
201 	u32			aui;
202 	u32			debug;
203 	u32			duplex;
204 	u32			phy[2];
205 	u32			phy_num;
206 	u32			speed;
207 	u8			tlan_rev;
208 	u8			tlan_full_duplex;
209 	spinlock_t		lock;
210 	struct work_struct			tlan_tqueue;
211 };
212 
213 
214 
215 
216 	/*****************************************************************
217 	 * TLan Driver Timer Definitions
218 	 *
219 	 ****************************************************************/
220 
221 #define TLAN_TIMER_ACTIVITY		2
222 #define TLAN_TIMER_PHY_PDOWN		3
223 #define TLAN_TIMER_PHY_PUP		4
224 #define TLAN_TIMER_PHY_RESET		5
225 #define TLAN_TIMER_PHY_START_LINK	6
226 #define TLAN_TIMER_PHY_FINISH_AN	7
227 #define TLAN_TIMER_FINISH_RESET		8
228 
229 #define TLAN_TIMER_ACT_DELAY		(HZ/10)
230 
231 
232 
233 
234 	/*****************************************************************
235 	 * TLan Driver Eeprom Definitions
236 	 *
237 	 ****************************************************************/
238 
239 #define TLAN_EEPROM_ACK		0
240 #define TLAN_EEPROM_STOP	1
241 
242 #define TLAN_EEPROM_SIZE	256
243 
244 
245 
246 	/*****************************************************************
247 	 * Host Register Offsets and Contents
248 	 *
249 	 ****************************************************************/
250 
251 #define TLAN_HOST_CMD			0x00
252 #define	TLAN_HC_GO		0x80000000
253 #define		TLAN_HC_STOP		0x40000000
254 #define		TLAN_HC_ACK		0x20000000
255 #define		TLAN_HC_CS_MASK		0x1FE00000
256 #define		TLAN_HC_EOC		0x00100000
257 #define		TLAN_HC_RT		0x00080000
258 #define		TLAN_HC_NES		0x00040000
259 #define		TLAN_HC_AD_RST		0x00008000
260 #define		TLAN_HC_LD_TMR		0x00004000
261 #define		TLAN_HC_LD_THR		0x00002000
262 #define		TLAN_HC_REQ_INT		0x00001000
263 #define		TLAN_HC_INT_OFF		0x00000800
264 #define		TLAN_HC_INT_ON		0x00000400
265 #define		TLAN_HC_AC_MASK		0x000000FF
266 #define TLAN_CH_PARM			0x04
267 #define TLAN_DIO_ADR			0x08
268 #define		TLAN_DA_ADR_INC		0x8000
269 #define		TLAN_DA_RAM_ADR		0x4000
270 #define TLAN_HOST_INT			0x0A
271 #define		TLAN_HI_IV_MASK		0x1FE0
272 #define		TLAN_HI_IT_MASK		0x001C
273 #define TLAN_DIO_DATA			0x0C
274 
275 
276 /* ThunderLAN Internal Register DIO Offsets */
277 
278 #define TLAN_NET_CMD			0x00
279 #define		TLAN_NET_CMD_NRESET	0x80
280 #define		TLAN_NET_CMD_NWRAP	0x40
281 #define		TLAN_NET_CMD_CSF	0x20
282 #define		TLAN_NET_CMD_CAF	0x10
283 #define		TLAN_NET_CMD_NOBRX	0x08
284 #define		TLAN_NET_CMD_DUPLEX	0x04
285 #define		TLAN_NET_CMD_TRFRAM	0x02
286 #define		TLAN_NET_CMD_TXPACE	0x01
287 #define TLAN_NET_SIO			0x01
288 #define	TLAN_NET_SIO_MINTEN	0x80
289 #define		TLAN_NET_SIO_ECLOK	0x40
290 #define		TLAN_NET_SIO_ETXEN	0x20
291 #define		TLAN_NET_SIO_EDATA	0x10
292 #define		TLAN_NET_SIO_NMRST	0x08
293 #define		TLAN_NET_SIO_MCLK	0x04
294 #define		TLAN_NET_SIO_MTXEN	0x02
295 #define		TLAN_NET_SIO_MDATA	0x01
296 #define TLAN_NET_STS			0x02
297 #define		TLAN_NET_STS_MIRQ	0x80
298 #define		TLAN_NET_STS_HBEAT	0x40
299 #define		TLAN_NET_STS_TXSTOP	0x20
300 #define		TLAN_NET_STS_RXSTOP	0x10
301 #define		TLAN_NET_STS_RSRVD	0x0F
302 #define TLAN_NET_MASK			0x03
303 #define		TLAN_NET_MASK_MASK7	0x80
304 #define		TLAN_NET_MASK_MASK6	0x40
305 #define		TLAN_NET_MASK_MASK5	0x20
306 #define		TLAN_NET_MASK_MASK4	0x10
307 #define		TLAN_NET_MASK_RSRVD	0x0F
308 #define TLAN_NET_CONFIG			0x04
309 #define	TLAN_NET_CFG_RCLK	0x8000
310 #define		TLAN_NET_CFG_TCLK	0x4000
311 #define		TLAN_NET_CFG_BIT	0x2000
312 #define		TLAN_NET_CFG_RXCRC	0x1000
313 #define		TLAN_NET_CFG_PEF	0x0800
314 #define		TLAN_NET_CFG_1FRAG	0x0400
315 #define		TLAN_NET_CFG_1CHAN	0x0200
316 #define		TLAN_NET_CFG_MTEST	0x0100
317 #define		TLAN_NET_CFG_PHY_EN	0x0080
318 #define		TLAN_NET_CFG_MSMASK	0x007F
319 #define TLAN_MAN_TEST			0x06
320 #define TLAN_DEF_VENDOR_ID		0x08
321 #define TLAN_DEF_DEVICE_ID		0x0A
322 #define TLAN_DEF_REVISION		0x0C
323 #define TLAN_DEF_SUBCLASS		0x0D
324 #define TLAN_DEF_MIN_LAT		0x0E
325 #define TLAN_DEF_MAX_LAT		0x0F
326 #define TLAN_AREG_0			0x10
327 #define TLAN_AREG_1			0x16
328 #define TLAN_AREG_2			0x1C
329 #define TLAN_AREG_3			0x22
330 #define TLAN_HASH_1			0x28
331 #define TLAN_HASH_2			0x2C
332 #define TLAN_GOOD_TX_FRMS		0x30
333 #define TLAN_TX_UNDERUNS		0x33
334 #define TLAN_GOOD_RX_FRMS		0x34
335 #define TLAN_RX_OVERRUNS		0x37
336 #define TLAN_DEFERRED_TX		0x38
337 #define TLAN_CRC_ERRORS			0x3A
338 #define TLAN_CODE_ERRORS		0x3B
339 #define TLAN_MULTICOL_FRMS		0x3C
340 #define TLAN_SINGLECOL_FRMS		0x3E
341 #define TLAN_EXCESSCOL_FRMS		0x40
342 #define TLAN_LATE_COLS			0x41
343 #define TLAN_CARRIER_LOSS		0x42
344 #define TLAN_ACOMMIT			0x43
345 #define TLAN_LED_REG			0x44
346 #define		TLAN_LED_ACT		0x10
347 #define		TLAN_LED_LINK		0x01
348 #define TLAN_BSIZE_REG			0x45
349 #define TLAN_MAX_RX			0x46
350 #define TLAN_INT_DIS			0x48
351 #define		TLAN_ID_TX_EOC		0x04
352 #define		TLAN_ID_RX_EOF		0x02
353 #define		TLAN_ID_RX_EOC		0x01
354 
355 
356 
357 /* ThunderLAN Interrupt Codes */
358 
359 #define TLAN_INT_NUMBER_OF_INTS	8
360 
361 #define TLAN_INT_NONE			0x0000
362 #define TLAN_INT_TX_EOF			0x0001
363 #define TLAN_INT_STAT_OVERFLOW		0x0002
364 #define TLAN_INT_RX_EOF			0x0003
365 #define TLAN_INT_DUMMY			0x0004
366 #define TLAN_INT_TX_EOC			0x0005
367 #define TLAN_INT_STATUS_CHECK		0x0006
368 #define TLAN_INT_RX_EOC			0x0007
369 
370 
371 
372 /* ThunderLAN MII Registers */
373 
374 /* Generic MII/PHY Registers */
375 
376 #define MII_GEN_CTL			0x00
377 #define	MII_GC_RESET		0x8000
378 #define		MII_GC_LOOPBK		0x4000
379 #define		MII_GC_SPEEDSEL		0x2000
380 #define		MII_GC_AUTOENB		0x1000
381 #define		MII_GC_PDOWN		0x0800
382 #define		MII_GC_ISOLATE		0x0400
383 #define		MII_GC_AUTORSRT		0x0200
384 #define		MII_GC_DUPLEX		0x0100
385 #define		MII_GC_COLTEST		0x0080
386 #define		MII_GC_RESERVED		0x007F
387 #define MII_GEN_STS			0x01
388 #define		MII_GS_100BT4		0x8000
389 #define		MII_GS_100BTXFD		0x4000
390 #define		MII_GS_100BTXHD		0x2000
391 #define		MII_GS_10BTFD		0x1000
392 #define		MII_GS_10BTHD		0x0800
393 #define		MII_GS_RESERVED		0x07C0
394 #define		MII_GS_AUTOCMPLT	0x0020
395 #define		MII_GS_RFLT		0x0010
396 #define		MII_GS_AUTONEG		0x0008
397 #define		MII_GS_LINK		0x0004
398 #define		MII_GS_JABBER		0x0002
399 #define		MII_GS_EXTCAP		0x0001
400 #define MII_GEN_ID_HI			0x02
401 #define MII_GEN_ID_LO			0x03
402 #define	MII_GIL_OUI		0xFC00
403 #define	MII_GIL_MODEL		0x03F0
404 #define	MII_GIL_REVISION	0x000F
405 #define MII_AN_ADV			0x04
406 #define MII_AN_LPA			0x05
407 #define MII_AN_EXP			0x06
408 
409 /* ThunderLAN Specific MII/PHY Registers */
410 
411 #define TLAN_TLPHY_ID			0x10
412 #define TLAN_TLPHY_CTL			0x11
413 #define	TLAN_TC_IGLINK		0x8000
414 #define		TLAN_TC_SWAPOL		0x4000
415 #define		TLAN_TC_AUISEL		0x2000
416 #define		TLAN_TC_SQEEN		0x1000
417 #define		TLAN_TC_MTEST		0x0800
418 #define		TLAN_TC_RESERVED	0x07F8
419 #define		TLAN_TC_NFEW		0x0004
420 #define		TLAN_TC_INTEN		0x0002
421 #define		TLAN_TC_TINT		0x0001
422 #define TLAN_TLPHY_STS			0x12
423 #define		TLAN_TS_MINT		0x8000
424 #define		TLAN_TS_PHOK		0x4000
425 #define		TLAN_TS_POLOK		0x2000
426 #define		TLAN_TS_TPENERGY	0x1000
427 #define		TLAN_TS_RESERVED	0x0FFF
428 #define TLAN_TLPHY_PAR			0x19
429 #define		TLAN_PHY_CIM_STAT	0x0020
430 #define		TLAN_PHY_SPEED_100	0x0040
431 #define		TLAN_PHY_DUPLEX_FULL	0x0080
432 #define		TLAN_PHY_AN_EN_STAT     0x0400
433 
434 /* National Sem. & Level1 PHY id's */
435 #define NAT_SEM_ID1			0x2000
436 #define NAT_SEM_ID2			0x5C01
437 #define LEVEL1_ID1			0x7810
438 #define LEVEL1_ID2			0x0000
439 
440 #define CIRC_INC(a, b) if (++a >= b) a = 0
441 
442 /* Routines to access internal registers. */
443 
tlan_dio_read8(u16 base_addr,u16 internal_addr)444 static inline u8 tlan_dio_read8(u16 base_addr, u16 internal_addr)
445 {
446 	outw(internal_addr, base_addr + TLAN_DIO_ADR);
447 	return inb((base_addr + TLAN_DIO_DATA) + (internal_addr & 0x3));
448 
449 }
450 
451 
452 
453 
tlan_dio_read16(u16 base_addr,u16 internal_addr)454 static inline u16 tlan_dio_read16(u16 base_addr, u16 internal_addr)
455 {
456 	outw(internal_addr, base_addr + TLAN_DIO_ADR);
457 	return inw((base_addr + TLAN_DIO_DATA) + (internal_addr & 0x2));
458 
459 }
460 
461 
462 
463 
tlan_dio_read32(u16 base_addr,u16 internal_addr)464 static inline u32 tlan_dio_read32(u16 base_addr, u16 internal_addr)
465 {
466 	outw(internal_addr, base_addr + TLAN_DIO_ADR);
467 	return inl(base_addr + TLAN_DIO_DATA);
468 
469 }
470 
471 
472 
473 
tlan_dio_write8(u16 base_addr,u16 internal_addr,u8 data)474 static inline void tlan_dio_write8(u16 base_addr, u16 internal_addr, u8 data)
475 {
476 	outw(internal_addr, base_addr + TLAN_DIO_ADR);
477 	outb(data, base_addr + TLAN_DIO_DATA + (internal_addr & 0x3));
478 
479 }
480 
481 
482 
483 
tlan_dio_write16(u16 base_addr,u16 internal_addr,u16 data)484 static inline void tlan_dio_write16(u16 base_addr, u16 internal_addr, u16 data)
485 {
486 	outw(internal_addr, base_addr + TLAN_DIO_ADR);
487 	outw(data, base_addr + TLAN_DIO_DATA + (internal_addr & 0x2));
488 
489 }
490 
491 
492 
493 
tlan_dio_write32(u16 base_addr,u16 internal_addr,u32 data)494 static inline void tlan_dio_write32(u16 base_addr, u16 internal_addr, u32 data)
495 {
496 	outw(internal_addr, base_addr + TLAN_DIO_ADR);
497 	outl(data, base_addr + TLAN_DIO_DATA + (internal_addr & 0x2));
498 
499 }
500 
501 #define tlan_clear_bit(bit, port)	outb_p(inb_p(port) & ~bit, port)
502 #define tlan_get_bit(bit, port)	((int) (inb_p(port) & bit))
503 #define tlan_set_bit(bit, port)	outb_p(inb_p(port) | bit, port)
504 
505 /*
506  * given 6 bytes, view them as 8 6-bit numbers and return the XOR of those
507  * the code below is about seven times as fast as the original code
508  *
509  * The original code was:
510  *
511  * u32	xor(u32 a, u32 b) {	return ((a && !b ) || (! a && b )); }
512  *
513  * #define XOR8(a, b, c, d, e, f, g, h)	\
514  *	xor(a, xor(b, xor(c, xor(d, xor(e, xor(f, xor(g, h)) ) ) ) ) )
515  * #define DA(a, bit)		(( (u8) a[bit/8] ) & ( (u8) (1 << bit%8)) )
516  *
517  *	hash  = XOR8(DA(a,0), DA(a, 6), DA(a,12), DA(a,18), DA(a,24),
518  *		      DA(a,30), DA(a,36), DA(a,42));
519  *	hash |= XOR8(DA(a,1), DA(a, 7), DA(a,13), DA(a,19), DA(a,25),
520  *		      DA(a,31), DA(a,37), DA(a,43)) << 1;
521  *	hash |= XOR8(DA(a,2), DA(a, 8), DA(a,14), DA(a,20), DA(a,26),
522  *		      DA(a,32), DA(a,38), DA(a,44)) << 2;
523  *	hash |= XOR8(DA(a,3), DA(a, 9), DA(a,15), DA(a,21), DA(a,27),
524  *		      DA(a,33), DA(a,39), DA(a,45)) << 3;
525  *	hash |= XOR8(DA(a,4), DA(a,10), DA(a,16), DA(a,22), DA(a,28),
526  *		      DA(a,34), DA(a,40), DA(a,46)) << 4;
527  *	hash |= XOR8(DA(a,5), DA(a,11), DA(a,17), DA(a,23), DA(a,29),
528  *		      DA(a,35), DA(a,41), DA(a,47)) << 5;
529  *
530  */
tlan_hash_func(const u8 * a)531 static inline u32 tlan_hash_func(const u8 *a)
532 {
533 	u8     hash;
534 
535 	hash = (a[0]^a[3]);		/* & 077 */
536 	hash ^= ((a[0]^a[3])>>6);	/* & 003 */
537 	hash ^= ((a[1]^a[4])<<2);	/* & 074 */
538 	hash ^= ((a[1]^a[4])>>4);	/* & 017 */
539 	hash ^= ((a[2]^a[5])<<4);	/* & 060 */
540 	hash ^= ((a[2]^a[5])>>2);	/* & 077 */
541 
542 	return hash & 077;
543 }
544 #endif
545