1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23#ifndef SONIC_H
24#define SONIC_H
25
26
27
28
29
30
31#define SONIC_CMD 0x00
32#define SONIC_DCR 0x01
33#define SONIC_RCR 0x02
34#define SONIC_TCR 0x03
35#define SONIC_IMR 0x04
36#define SONIC_ISR 0x05
37
38#define SONIC_UTDA 0x06
39#define SONIC_CTDA 0x07
40
41#define SONIC_URDA 0x0d
42#define SONIC_CRDA 0x0e
43#define SONIC_EOBC 0x13
44#define SONIC_URRA 0x14
45#define SONIC_RSA 0x15
46#define SONIC_REA 0x16
47#define SONIC_RRP 0x17
48#define SONIC_RWP 0x18
49#define SONIC_RSC 0x2b
50
51#define SONIC_CEP 0x21
52#define SONIC_CAP2 0x22
53#define SONIC_CAP1 0x23
54#define SONIC_CAP0 0x24
55#define SONIC_CE 0x25
56#define SONIC_CDP 0x26
57#define SONIC_CDC 0x27
58
59#define SONIC_WT0 0x29
60#define SONIC_WT1 0x2a
61
62#define SONIC_SR 0x28
63
64
65
66
67#define SONIC_TPS 0x08
68#define SONIC_TFC 0x09
69#define SONIC_TSA0 0x0a
70#define SONIC_TSA1 0x0b
71#define SONIC_TFS 0x0c
72
73#define SONIC_CRBA0 0x0f
74#define SONIC_CRBA1 0x10
75#define SONIC_RBWC0 0x11
76#define SONIC_RBWC1 0x12
77#define SONIC_TTDA 0x20
78#define SONIC_MDT 0x2f
79
80#define SONIC_TRBA0 0x19
81#define SONIC_TRBA1 0x1a
82#define SONIC_TBWC0 0x1b
83#define SONIC_TBWC1 0x1c
84#define SONIC_LLFA 0x1f
85
86#define SONIC_ADDR0 0x1d
87#define SONIC_ADDR1 0x1e
88
89
90
91
92
93#define SONIC_CRCT 0x2c
94#define SONIC_FAET 0x2d
95#define SONIC_MPT 0x2e
96
97#define SONIC_DCR2 0x3f
98
99
100
101
102
103#define SONIC_CR_LCAM 0x0200
104#define SONIC_CR_RRRA 0x0100
105#define SONIC_CR_RST 0x0080
106#define SONIC_CR_ST 0x0020
107#define SONIC_CR_STP 0x0010
108#define SONIC_CR_RXEN 0x0008
109#define SONIC_CR_RXDIS 0x0004
110#define SONIC_CR_TXP 0x0002
111#define SONIC_CR_HTX 0x0001
112
113
114
115
116
117#define SONIC_DCR_EXBUS 0x8000
118#define SONIC_DCR_LBR 0x2000
119#define SONIC_DCR_PO1 0x1000
120#define SONIC_DCR_PO0 0x0800
121#define SONIC_DCR_SBUS 0x0400
122#define SONIC_DCR_USR1 0x0200
123#define SONIC_DCR_USR0 0x0100
124#define SONIC_DCR_WC1 0x0080
125#define SONIC_DCR_WC0 0x0040
126#define SONIC_DCR_DW 0x0020
127#define SONIC_DCR_BMS 0x0010
128#define SONIC_DCR_RFT1 0x0008
129#define SONIC_DCR_RFT0 0x0004
130#define SONIC_DCR_TFT1 0x0002
131#define SONIC_DCR_TFT0 0x0001
132
133
134
135
136
137#define SONIC_RCR_ERR 0x8000
138#define SONIC_RCR_RNT 0x4000
139#define SONIC_RCR_BRD 0x2000
140#define SONIC_RCR_PRO 0x1000
141#define SONIC_RCR_AMC 0x0800
142#define SONIC_RCR_LB1 0x0400
143#define SONIC_RCR_LB0 0x0200
144
145#define SONIC_RCR_MC 0x0100
146#define SONIC_RCR_BC 0x0080
147#define SONIC_RCR_LPKT 0x0040
148#define SONIC_RCR_CRS 0x0020
149#define SONIC_RCR_COL 0x0010
150#define SONIC_RCR_CRCR 0x0008
151#define SONIC_RCR_FAER 0x0004
152#define SONIC_RCR_LBK 0x0002
153#define SONIC_RCR_PRX 0x0001
154
155#define SONIC_RCR_LB_OFF 0
156#define SONIC_RCR_LB_MAC SONIC_RCR_LB0
157#define SONIC_RCR_LB_ENDEC SONIC_RCR_LB1
158#define SONIC_RCR_LB_TRANS (SONIC_RCR_LB0 | SONIC_RCR_LB1)
159
160
161
162#define SONIC_RCR_DEFAULT (SONIC_RCR_BRD)
163
164
165
166
167
168
169#define SONIC_TCR_PINTR 0x8000
170#define SONIC_TCR_POWC 0x4000
171#define SONIC_TCR_CRCI 0x2000
172#define SONIC_TCR_EXDIS 0x1000
173#define SONIC_TCR_EXD 0x0400
174#define SONIC_TCR_DEF 0x0200
175#define SONIC_TCR_NCRS 0x0100
176#define SONIC_TCR_CRLS 0x0080
177#define SONIC_TCR_EXC 0x0040
178#define SONIC_TCR_PMB 0x0008
179#define SONIC_TCR_FU 0x0004
180#define SONIC_TCR_BCM 0x0002
181#define SONIC_TCR_PTX 0x0001
182
183#define SONIC_TCR_DEFAULT 0x0000
184
185
186
187
188
189
190#define SONIC_INT_BR 0x4000
191#define SONIC_INT_HBL 0x2000
192#define SONIC_INT_LCD 0x1000
193#define SONIC_INT_PINT 0x0800
194#define SONIC_INT_PKTRX 0x0400
195#define SONIC_INT_TXDN 0x0200
196#define SONIC_INT_TXER 0x0100
197#define SONIC_INT_TC 0x0080
198#define SONIC_INT_RDE 0x0040
199#define SONIC_INT_RBE 0x0020
200#define SONIC_INT_RBAE 0x0010
201#define SONIC_INT_CRC 0x0008
202#define SONIC_INT_FAE 0x0004
203#define SONIC_INT_MP 0x0002
204#define SONIC_INT_RFO 0x0001
205
206
207
208
209
210
211#define SONIC_IMR_DEFAULT ( SONIC_INT_BR | \
212 SONIC_INT_LCD | \
213 SONIC_INT_RFO | \
214 SONIC_INT_PKTRX | \
215 SONIC_INT_TXDN | \
216 SONIC_INT_TXER | \
217 SONIC_INT_RDE | \
218 SONIC_INT_RBAE | \
219 SONIC_INT_CRC | \
220 SONIC_INT_FAE | \
221 SONIC_INT_MP)
222
223
224#define SONIC_EOL 0x0001
225#define CAM_DESCRIPTORS 16
226
227
228
229#define SONIC_BITMODE16 0
230#define SONIC_BITMODE32 1
231#define SONIC_BUS_SCALE(bitmode) ((bitmode) ? 4 : 2)
232
233#define SIZEOF_SONIC_RR 4
234#define SONIC_RR_BUFADR_L 0
235#define SONIC_RR_BUFADR_H 1
236#define SONIC_RR_BUFSIZE_L 2
237#define SONIC_RR_BUFSIZE_H 3
238
239#define SIZEOF_SONIC_RD 7
240#define SONIC_RD_STATUS 0
241#define SONIC_RD_PKTLEN 1
242#define SONIC_RD_PKTPTR_L 2
243#define SONIC_RD_PKTPTR_H 3
244#define SONIC_RD_SEQNO 4
245#define SONIC_RD_LINK 5
246#define SONIC_RD_IN_USE 6
247
248#define SIZEOF_SONIC_TD 8
249#define SONIC_TD_STATUS 0
250#define SONIC_TD_CONFIG 1
251#define SONIC_TD_PKTSIZE 2
252#define SONIC_TD_FRAG_COUNT 3
253#define SONIC_TD_FRAG_PTR_L 4
254#define SONIC_TD_FRAG_PTR_H 5
255#define SONIC_TD_FRAG_SIZE 6
256#define SONIC_TD_LINK 7
257
258#define SIZEOF_SONIC_CD 4
259#define SONIC_CD_ENTRY_POINTER 0
260#define SONIC_CD_CAP0 1
261#define SONIC_CD_CAP1 2
262#define SONIC_CD_CAP2 3
263
264#define SIZEOF_SONIC_CDA ((CAM_DESCRIPTORS * SIZEOF_SONIC_CD) + 1)
265#define SONIC_CDA_CAM_ENABLE (CAM_DESCRIPTORS * SIZEOF_SONIC_CD)
266
267
268
269
270
271
272
273#define SONIC_NUM_RRS 16
274#define SONIC_NUM_RDS SONIC_NUM_RRS
275#define SONIC_NUM_TDS 16
276
277#define SONIC_RDS_MASK (SONIC_NUM_RDS-1)
278#define SONIC_TDS_MASK (SONIC_NUM_TDS-1)
279
280#define SONIC_RBSIZE 1520
281
282
283#define SIZEOF_SONIC_DESC (SIZEOF_SONIC_CDA \
284 + (SIZEOF_SONIC_TD * SONIC_NUM_TDS) \
285 + (SIZEOF_SONIC_RD * SONIC_NUM_RDS) \
286 + (SIZEOF_SONIC_RR * SONIC_NUM_RRS))
287
288
289struct sonic_local {
290
291 int dma_bitmode;
292
293
294
295 int reg_offset;
296 void *descriptors;
297
298
299 void *cda;
300 void *tda;
301 void *rra;
302 void *rda;
303 struct sk_buff* volatile rx_skb[SONIC_NUM_RRS];
304 struct sk_buff* volatile tx_skb[SONIC_NUM_TDS];
305 unsigned int tx_len[SONIC_NUM_TDS];
306
307
308 dma_addr_t descriptors_laddr;
309 u32 cda_laddr;
310 u32 tda_laddr;
311 u32 rra_laddr;
312 u32 rda_laddr;
313 dma_addr_t rx_laddr[SONIC_NUM_RRS];
314 dma_addr_t tx_laddr[SONIC_NUM_TDS];
315 unsigned int rra_end;
316 unsigned int cur_rwp;
317 unsigned int cur_rx;
318 unsigned int cur_tx;
319 unsigned int eol_rx;
320 unsigned int eol_tx;
321 unsigned int next_tx;
322 struct device *device;
323 struct net_device_stats stats;
324};
325
326#define TX_TIMEOUT (3 * HZ)
327
328
329
330static int sonic_open(struct net_device *dev);
331static int sonic_send_packet(struct sk_buff *skb, struct net_device *dev);
332static irqreturn_t sonic_interrupt(int irq, void *dev_id);
333static void sonic_rx(struct net_device *dev);
334static int sonic_close(struct net_device *dev);
335static struct net_device_stats *sonic_get_stats(struct net_device *dev);
336static void sonic_multicast_list(struct net_device *dev);
337static int sonic_init(struct net_device *dev);
338static void sonic_tx_timeout(struct net_device *dev);
339
340
341
342
343
344
345static inline void sonic_buf_put(void* base, int bitmode,
346 int offset, __u16 val)
347{
348 if (bitmode)
349#ifdef __BIG_ENDIAN
350 ((__u16 *) base + (offset*2))[1] = val;
351#else
352 ((__u16 *) base + (offset*2))[0] = val;
353#endif
354 else
355 ((__u16 *) base)[offset] = val;
356}
357
358static inline __u16 sonic_buf_get(void* base, int bitmode,
359 int offset)
360{
361 if (bitmode)
362#ifdef __BIG_ENDIAN
363 return ((volatile __u16 *) base + (offset*2))[1];
364#else
365 return ((volatile __u16 *) base + (offset*2))[0];
366#endif
367 else
368 return ((volatile __u16 *) base)[offset];
369}
370
371
372static inline void sonic_cda_put(struct net_device* dev, int entry,
373 int offset, __u16 val)
374{
375 struct sonic_local *lp = netdev_priv(dev);
376 sonic_buf_put(lp->cda, lp->dma_bitmode,
377 (entry * SIZEOF_SONIC_CD) + offset, val);
378}
379
380static inline __u16 sonic_cda_get(struct net_device* dev, int entry,
381 int offset)
382{
383 struct sonic_local *lp = netdev_priv(dev);
384 return sonic_buf_get(lp->cda, lp->dma_bitmode,
385 (entry * SIZEOF_SONIC_CD) + offset);
386}
387
388static inline void sonic_set_cam_enable(struct net_device* dev, __u16 val)
389{
390 struct sonic_local *lp = netdev_priv(dev);
391 sonic_buf_put(lp->cda, lp->dma_bitmode, SONIC_CDA_CAM_ENABLE, val);
392}
393
394static inline __u16 sonic_get_cam_enable(struct net_device* dev)
395{
396 struct sonic_local *lp = netdev_priv(dev);
397 return sonic_buf_get(lp->cda, lp->dma_bitmode, SONIC_CDA_CAM_ENABLE);
398}
399
400static inline void sonic_tda_put(struct net_device* dev, int entry,
401 int offset, __u16 val)
402{
403 struct sonic_local *lp = netdev_priv(dev);
404 sonic_buf_put(lp->tda, lp->dma_bitmode,
405 (entry * SIZEOF_SONIC_TD) + offset, val);
406}
407
408static inline __u16 sonic_tda_get(struct net_device* dev, int entry,
409 int offset)
410{
411 struct sonic_local *lp = netdev_priv(dev);
412 return sonic_buf_get(lp->tda, lp->dma_bitmode,
413 (entry * SIZEOF_SONIC_TD) + offset);
414}
415
416static inline void sonic_rda_put(struct net_device* dev, int entry,
417 int offset, __u16 val)
418{
419 struct sonic_local *lp = netdev_priv(dev);
420 sonic_buf_put(lp->rda, lp->dma_bitmode,
421 (entry * SIZEOF_SONIC_RD) + offset, val);
422}
423
424static inline __u16 sonic_rda_get(struct net_device* dev, int entry,
425 int offset)
426{
427 struct sonic_local *lp = netdev_priv(dev);
428 return sonic_buf_get(lp->rda, lp->dma_bitmode,
429 (entry * SIZEOF_SONIC_RD) + offset);
430}
431
432static inline void sonic_rra_put(struct net_device* dev, int entry,
433 int offset, __u16 val)
434{
435 struct sonic_local *lp = netdev_priv(dev);
436 sonic_buf_put(lp->rra, lp->dma_bitmode,
437 (entry * SIZEOF_SONIC_RR) + offset, val);
438}
439
440static inline __u16 sonic_rra_get(struct net_device* dev, int entry,
441 int offset)
442{
443 struct sonic_local *lp = netdev_priv(dev);
444 return sonic_buf_get(lp->rra, lp->dma_bitmode,
445 (entry * SIZEOF_SONIC_RR) + offset);
446}
447
448static const char version[] =
449 "sonic.c:v0.92 20.9.98 tsbogend@alpha.franken.de\n";
450
451#endif
452