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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/net/arm
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/net/arm')
-rw-r--r--drivers/net/arm/Kconfig46
-rw-r--r--drivers/net/arm/Makefile10
-rw-r--r--drivers/net/arm/am79c961a.c750
-rw-r--r--drivers/net/arm/am79c961a.h148
-rw-r--r--drivers/net/arm/ether00.c1017
-rw-r--r--drivers/net/arm/ether1.c1110
-rw-r--r--drivers/net/arm/ether1.h281
-rw-r--r--drivers/net/arm/ether3.c936
-rw-r--r--drivers/net/arm/ether3.h177
-rw-r--r--drivers/net/arm/etherh.c862
10 files changed, 5337 insertions, 0 deletions
diff --git a/drivers/net/arm/Kconfig b/drivers/net/arm/Kconfig
new file mode 100644
index 000000000000..470364deded0
--- /dev/null
+++ b/drivers/net/arm/Kconfig
@@ -0,0 +1,46 @@
1#
2# Acorn Network device configuration
3# These are for Acorn's Expansion card network interfaces
4#
5config ARM_AM79C961A
6 bool "ARM EBSA110 AM79C961A support"
7 depends on NET_ETHERNET && ARM && ARCH_EBSA110
8 select CRC32
9 help
10 If you wish to compile a kernel for the EBSA-110, then you should
11 always answer Y to this.
12
13config ARM_ETHER1
14 tristate "Acorn Ether1 support"
15 depends on NET_ETHERNET && ARM && ARCH_ACORN
16 help
17 If you have an Acorn system with one of these (AKA25) network cards,
18 you should say Y to this option if you wish to use it with Linux.
19
20config ARM_ETHER3
21 tristate "Acorn/ANT Ether3 support"
22 depends on NET_ETHERNET && ARM && ARCH_ACORN
23 help
24 If you have an Acorn system with one of these network cards, you
25 should say Y to this option if you wish to use it with Linux.
26
27config ARM_ETHERH
28 tristate "I-cubed EtherH/ANT EtherM support"
29 depends on NET_ETHERNET && ARM && ARCH_ACORN
30 select CRC32
31 help
32 If you have an Acorn system with one of these network cards, you
33 should say Y to this option if you wish to use it with Linux.
34
35config ARM_ETHER00
36 tristate "Altera Ether00 support"
37 depends on NET_ETHERNET && ARM && ARCH_CAMELOT
38 help
39 This is the driver for Altera's ether00 ethernet mac IP core. Say
40 Y here if you want to build support for this into the kernel. It
41 is also available as a module (say M here) that can be inserted/
42 removed from the kernel at the same time as the PLD is configured.
43 If this driver is running on an epxa10 development board then it
44 will generate a suitable hw address based on the board serial
45 number (MTD support is required for this). Otherwise you will
46 need to set a suitable hw address using ifconfig.
diff --git a/drivers/net/arm/Makefile b/drivers/net/arm/Makefile
new file mode 100644
index 000000000000..b0d706834d89
--- /dev/null
+++ b/drivers/net/arm/Makefile
@@ -0,0 +1,10 @@
1# File: drivers/net/arm/Makefile
2#
3# Makefile for the ARM network device drivers
4#
5
6obj-$(CONFIG_ARM_AM79C961A) += am79c961a.o
7obj-$(CONFIG_ARM_ETHER00) += ether00.o
8obj-$(CONFIG_ARM_ETHERH) += etherh.o
9obj-$(CONFIG_ARM_ETHER3) += ether3.o
10obj-$(CONFIG_ARM_ETHER1) += ether1.o
diff --git a/drivers/net/arm/am79c961a.c b/drivers/net/arm/am79c961a.c
new file mode 100644
index 000000000000..9b659e3c8d67
--- /dev/null
+++ b/drivers/net/arm/am79c961a.c
@@ -0,0 +1,750 @@
1/*
2 * linux/drivers/net/am79c961.c
3 *
4 * by Russell King <rmk@arm.linux.org.uk> 1995-2001.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 *
10 * Derived from various things including skeleton.c
11 *
12 * This is a special driver for the am79c961A Lance chip used in the
13 * Intel (formally Digital Equipment Corp) EBSA110 platform. Please
14 * note that this can not be built as a module (it doesn't make sense).
15 */
16#include <linux/kernel.h>
17#include <linux/types.h>
18#include <linux/fcntl.h>
19#include <linux/interrupt.h>
20#include <linux/ioport.h>
21#include <linux/in.h>
22#include <linux/slab.h>
23#include <linux/string.h>
24#include <linux/errno.h>
25#include <linux/netdevice.h>
26#include <linux/etherdevice.h>
27#include <linux/skbuff.h>
28#include <linux/delay.h>
29#include <linux/init.h>
30#include <linux/crc32.h>
31#include <linux/bitops.h>
32
33#include <asm/system.h>
34#include <asm/irq.h>
35#include <asm/io.h>
36#include <asm/dma.h>
37
38#define TX_BUFFERS 15
39#define RX_BUFFERS 25
40
41#include "am79c961a.h"
42
43static irqreturn_t
44am79c961_interrupt (int irq, void *dev_id, struct pt_regs *regs);
45
46static unsigned int net_debug = NET_DEBUG;
47
48static const char version[] =
49 "am79c961 ethernet driver (C) 1995-2001 Russell King v0.04\n";
50
51/* --------------------------------------------------------------------------- */
52
53#ifdef __arm__
54static void write_rreg(u_long base, u_int reg, u_int val)
55{
56 __asm__(
57 "str%?h %1, [%2] @ NET_RAP\n\t"
58 "str%?h %0, [%2, #-4] @ NET_RDP"
59 :
60 : "r" (val), "r" (reg), "r" (ISAIO_BASE + 0x0464));
61}
62
63static inline unsigned short read_rreg(u_long base_addr, u_int reg)
64{
65 unsigned short v;
66 __asm__(
67 "str%?h %1, [%2] @ NET_RAP\n\t"
68 "ldr%?h %0, [%2, #-4] @ NET_RDP"
69 : "=r" (v)
70 : "r" (reg), "r" (ISAIO_BASE + 0x0464));
71 return v;
72}
73
74static inline void write_ireg(u_long base, u_int reg, u_int val)
75{
76 __asm__(
77 "str%?h %1, [%2] @ NET_RAP\n\t"
78 "str%?h %0, [%2, #8] @ NET_IDP"
79 :
80 : "r" (val), "r" (reg), "r" (ISAIO_BASE + 0x0464));
81}
82
83static inline unsigned short read_ireg(u_long base_addr, u_int reg)
84{
85 u_short v;
86 __asm__(
87 "str%?h %1, [%2] @ NAT_RAP\n\t"
88 "str%?h %0, [%2, #8] @ NET_IDP\n\t"
89 : "=r" (v)
90 : "r" (reg), "r" (ISAIO_BASE + 0x0464));
91 return v;
92}
93
94#define am_writeword(dev,off,val) __raw_writew(val, ISAMEM_BASE + ((off) << 1))
95#define am_readword(dev,off) __raw_readw(ISAMEM_BASE + ((off) << 1))
96
97static inline void
98am_writebuffer(struct net_device *dev, u_int offset, unsigned char *buf, unsigned int length)
99{
100 offset = ISAMEM_BASE + (offset << 1);
101 length = (length + 1) & ~1;
102 if ((int)buf & 2) {
103 __asm__ __volatile__("str%?h %2, [%0], #4"
104 : "=&r" (offset) : "0" (offset), "r" (buf[0] | (buf[1] << 8)));
105 buf += 2;
106 length -= 2;
107 }
108 while (length > 8) {
109 unsigned int tmp, tmp2;
110 __asm__ __volatile__(
111 "ldm%?ia %1!, {%2, %3}\n\t"
112 "str%?h %2, [%0], #4\n\t"
113 "mov%? %2, %2, lsr #16\n\t"
114 "str%?h %2, [%0], #4\n\t"
115 "str%?h %3, [%0], #4\n\t"
116 "mov%? %3, %3, lsr #16\n\t"
117 "str%?h %3, [%0], #4"
118 : "=&r" (offset), "=&r" (buf), "=r" (tmp), "=r" (tmp2)
119 : "0" (offset), "1" (buf));
120 length -= 8;
121 }
122 while (length > 0) {
123 __asm__ __volatile__("str%?h %2, [%0], #4"
124 : "=&r" (offset) : "0" (offset), "r" (buf[0] | (buf[1] << 8)));
125 buf += 2;
126 length -= 2;
127 }
128}
129
130static inline void
131am_readbuffer(struct net_device *dev, u_int offset, unsigned char *buf, unsigned int length)
132{
133 offset = ISAMEM_BASE + (offset << 1);
134 length = (length + 1) & ~1;
135 if ((int)buf & 2) {
136 unsigned int tmp;
137 __asm__ __volatile__(
138 "ldr%?h %2, [%0], #4\n\t"
139 "str%?b %2, [%1], #1\n\t"
140 "mov%? %2, %2, lsr #8\n\t"
141 "str%?b %2, [%1], #1"
142 : "=&r" (offset), "=&r" (buf), "=r" (tmp): "0" (offset), "1" (buf));
143 length -= 2;
144 }
145 while (length > 8) {
146 unsigned int tmp, tmp2, tmp3;
147 __asm__ __volatile__(
148 "ldr%?h %2, [%0], #4\n\t"
149 "ldr%?h %3, [%0], #4\n\t"
150 "orr%? %2, %2, %3, lsl #16\n\t"
151 "ldr%?h %3, [%0], #4\n\t"
152 "ldr%?h %4, [%0], #4\n\t"
153 "orr%? %3, %3, %4, lsl #16\n\t"
154 "stm%?ia %1!, {%2, %3}"
155 : "=&r" (offset), "=&r" (buf), "=r" (tmp), "=r" (tmp2), "=r" (tmp3)
156 : "0" (offset), "1" (buf));
157 length -= 8;
158 }
159 while (length > 0) {
160 unsigned int tmp;
161 __asm__ __volatile__(
162 "ldr%?h %2, [%0], #4\n\t"
163 "str%?b %2, [%1], #1\n\t"
164 "mov%? %2, %2, lsr #8\n\t"
165 "str%?b %2, [%1], #1"
166 : "=&r" (offset), "=&r" (buf), "=r" (tmp) : "0" (offset), "1" (buf));
167 length -= 2;
168 }
169}
170#else
171#error Not compatible
172#endif
173
174static int
175am79c961_ramtest(struct net_device *dev, unsigned int val)
176{
177 unsigned char *buffer = kmalloc (65536, GFP_KERNEL);
178 int i, error = 0, errorcount = 0;
179
180 if (!buffer)
181 return 0;
182 memset (buffer, val, 65536);
183 am_writebuffer(dev, 0, buffer, 65536);
184 memset (buffer, val ^ 255, 65536);
185 am_readbuffer(dev, 0, buffer, 65536);
186 for (i = 0; i < 65536; i++) {
187 if (buffer[i] != val && !error) {
188 printk ("%s: buffer error (%02X %02X) %05X - ", dev->name, val, buffer[i], i);
189 error = 1;
190 errorcount ++;
191 } else if (error && buffer[i] == val) {
192 printk ("%05X\n", i);
193 error = 0;
194 }
195 }
196 if (error)
197 printk ("10000\n");
198 kfree (buffer);
199 return errorcount;
200}
201
202static void
203am79c961_init_for_open(struct net_device *dev)
204{
205 struct dev_priv *priv = netdev_priv(dev);
206 unsigned long flags;
207 unsigned char *p;
208 u_int hdr_addr, first_free_addr;
209 int i;
210
211 /*
212 * Stop the chip.
213 */
214 spin_lock_irqsave(priv->chip_lock, flags);
215 write_rreg (dev->base_addr, CSR0, CSR0_BABL|CSR0_CERR|CSR0_MISS|CSR0_MERR|CSR0_TINT|CSR0_RINT|CSR0_STOP);
216 spin_unlock_irqrestore(priv->chip_lock, flags);
217
218 write_ireg (dev->base_addr, 5, 0x00a0); /* Receive address LED */
219 write_ireg (dev->base_addr, 6, 0x0081); /* Collision LED */
220 write_ireg (dev->base_addr, 7, 0x0090); /* XMIT LED */
221 write_ireg (dev->base_addr, 2, 0x0000); /* MODE register selects media */
222
223 for (i = LADRL; i <= LADRH; i++)
224 write_rreg (dev->base_addr, i, 0);
225
226 for (i = PADRL, p = dev->dev_addr; i <= PADRH; i++, p += 2)
227 write_rreg (dev->base_addr, i, p[0] | (p[1] << 8));
228
229 i = MODE_PORT_10BT;
230 if (dev->flags & IFF_PROMISC)
231 i |= MODE_PROMISC;
232
233 write_rreg (dev->base_addr, MODE, i);
234 write_rreg (dev->base_addr, POLLINT, 0);
235 write_rreg (dev->base_addr, SIZERXR, -RX_BUFFERS);
236 write_rreg (dev->base_addr, SIZETXR, -TX_BUFFERS);
237
238 first_free_addr = RX_BUFFERS * 8 + TX_BUFFERS * 8 + 16;
239 hdr_addr = 0;
240
241 priv->rxhead = 0;
242 priv->rxtail = 0;
243 priv->rxhdr = hdr_addr;
244
245 for (i = 0; i < RX_BUFFERS; i++) {
246 priv->rxbuffer[i] = first_free_addr;
247 am_writeword (dev, hdr_addr, first_free_addr);
248 am_writeword (dev, hdr_addr + 2, RMD_OWN);
249 am_writeword (dev, hdr_addr + 4, (-1600));
250 am_writeword (dev, hdr_addr + 6, 0);
251 first_free_addr += 1600;
252 hdr_addr += 8;
253 }
254 priv->txhead = 0;
255 priv->txtail = 0;
256 priv->txhdr = hdr_addr;
257 for (i = 0; i < TX_BUFFERS; i++) {
258 priv->txbuffer[i] = first_free_addr;
259 am_writeword (dev, hdr_addr, first_free_addr);
260 am_writeword (dev, hdr_addr + 2, TMD_STP|TMD_ENP);
261 am_writeword (dev, hdr_addr + 4, 0xf000);
262 am_writeword (dev, hdr_addr + 6, 0);
263 first_free_addr += 1600;
264 hdr_addr += 8;
265 }
266
267 write_rreg (dev->base_addr, BASERXL, priv->rxhdr);
268 write_rreg (dev->base_addr, BASERXH, 0);
269 write_rreg (dev->base_addr, BASETXL, priv->txhdr);
270 write_rreg (dev->base_addr, BASERXH, 0);
271 write_rreg (dev->base_addr, CSR0, CSR0_STOP);
272 write_rreg (dev->base_addr, CSR3, CSR3_IDONM|CSR3_BABLM|CSR3_DXSUFLO);
273 write_rreg (dev->base_addr, CSR4, CSR4_APAD_XMIT|CSR4_MFCOM|CSR4_RCVCCOM|CSR4_TXSTRTM|CSR4_JABM);
274 write_rreg (dev->base_addr, CSR0, CSR0_IENA|CSR0_STRT);
275}
276
277static void am79c961_timer(unsigned long data)
278{
279 struct net_device *dev = (struct net_device *)data;
280 struct dev_priv *priv = netdev_priv(dev);
281 unsigned int lnkstat, carrier;
282
283 lnkstat = read_ireg(dev->base_addr, ISALED0) & ISALED0_LNKST;
284 carrier = netif_carrier_ok(dev);
285
286 if (lnkstat && !carrier)
287 netif_carrier_on(dev);
288 else if (!lnkstat && carrier)
289 netif_carrier_off(dev);
290
291 mod_timer(&priv->timer, jiffies + 5*HZ);
292}
293
294/*
295 * Open/initialize the board.
296 */
297static int
298am79c961_open(struct net_device *dev)
299{
300 struct dev_priv *priv = netdev_priv(dev);
301 int ret;
302
303 memset (&priv->stats, 0, sizeof (priv->stats));
304
305 ret = request_irq(dev->irq, am79c961_interrupt, 0, dev->name, dev);
306 if (ret)
307 return ret;
308
309 am79c961_init_for_open(dev);
310
311 netif_carrier_off(dev);
312
313 priv->timer.expires = jiffies;
314 add_timer(&priv->timer);
315
316 netif_start_queue(dev);
317
318 return 0;
319}
320
321/*
322 * The inverse routine to am79c961_open().
323 */
324static int
325am79c961_close(struct net_device *dev)
326{
327 struct dev_priv *priv = netdev_priv(dev);
328 unsigned long flags;
329
330 del_timer_sync(&priv->timer);
331
332 netif_stop_queue(dev);
333 netif_carrier_off(dev);
334
335 spin_lock_irqsave(priv->chip_lock, flags);
336 write_rreg (dev->base_addr, CSR0, CSR0_STOP);
337 write_rreg (dev->base_addr, CSR3, CSR3_MASKALL);
338 spin_unlock_irqrestore(priv->chip_lock, flags);
339
340 free_irq (dev->irq, dev);
341
342 return 0;
343}
344
345/*
346 * Get the current statistics.
347 */
348static struct net_device_stats *am79c961_getstats (struct net_device *dev)
349{
350 struct dev_priv *priv = netdev_priv(dev);
351 return &priv->stats;
352}
353
354static void am79c961_mc_hash(struct dev_mc_list *dmi, unsigned short *hash)
355{
356 if (dmi->dmi_addrlen == ETH_ALEN && dmi->dmi_addr[0] & 0x01) {
357 int idx, bit;
358 u32 crc;
359
360 crc = ether_crc_le(ETH_ALEN, dmi->dmi_addr);
361
362 idx = crc >> 30;
363 bit = (crc >> 26) & 15;
364
365 hash[idx] |= 1 << bit;
366 }
367}
368
369/*
370 * Set or clear promiscuous/multicast mode filter for this adapter.
371 */
372static void am79c961_setmulticastlist (struct net_device *dev)
373{
374 struct dev_priv *priv = netdev_priv(dev);
375 unsigned long flags;
376 unsigned short multi_hash[4], mode;
377 int i, stopped;
378
379 mode = MODE_PORT_10BT;
380
381 if (dev->flags & IFF_PROMISC) {
382 mode |= MODE_PROMISC;
383 } else if (dev->flags & IFF_ALLMULTI) {
384 memset(multi_hash, 0xff, sizeof(multi_hash));
385 } else {
386 struct dev_mc_list *dmi;
387
388 memset(multi_hash, 0x00, sizeof(multi_hash));
389
390 for (dmi = dev->mc_list; dmi; dmi = dmi->next)
391 am79c961_mc_hash(dmi, multi_hash);
392 }
393
394 spin_lock_irqsave(priv->chip_lock, flags);
395
396 stopped = read_rreg(dev->base_addr, CSR0) & CSR0_STOP;
397
398 if (!stopped) {
399 /*
400 * Put the chip into suspend mode
401 */
402 write_rreg(dev->base_addr, CTRL1, CTRL1_SPND);
403
404 /*
405 * Spin waiting for chip to report suspend mode
406 */
407 while ((read_rreg(dev->base_addr, CTRL1) & CTRL1_SPND) == 0) {
408 spin_unlock_irqrestore(priv->chip_lock, flags);
409 nop();
410 spin_lock_irqsave(priv->chip_lock, flags);
411 }
412 }
413
414 /*
415 * Update the multicast hash table
416 */
417 for (i = 0; i < sizeof(multi_hash) / sizeof(multi_hash[0]); i++)
418 write_rreg(dev->base_addr, i + LADRL, multi_hash[i]);
419
420 /*
421 * Write the mode register
422 */
423 write_rreg(dev->base_addr, MODE, mode);
424
425 if (!stopped) {
426 /*
427 * Put the chip back into running mode
428 */
429 write_rreg(dev->base_addr, CTRL1, 0);
430 }
431
432 spin_unlock_irqrestore(priv->chip_lock, flags);
433}
434
435static void am79c961_timeout(struct net_device *dev)
436{
437 printk(KERN_WARNING "%s: transmit timed out, network cable problem?\n",
438 dev->name);
439
440 /*
441 * ought to do some setup of the tx side here
442 */
443
444 netif_wake_queue(dev);
445}
446
447/*
448 * Transmit a packet
449 */
450static int
451am79c961_sendpacket(struct sk_buff *skb, struct net_device *dev)
452{
453 struct dev_priv *priv = netdev_priv(dev);
454 unsigned int hdraddr, bufaddr;
455 unsigned int head;
456 unsigned long flags;
457
458 head = priv->txhead;
459 hdraddr = priv->txhdr + (head << 3);
460 bufaddr = priv->txbuffer[head];
461 head += 1;
462 if (head >= TX_BUFFERS)
463 head = 0;
464
465 am_writebuffer (dev, bufaddr, skb->data, skb->len);
466 am_writeword (dev, hdraddr + 4, -skb->len);
467 am_writeword (dev, hdraddr + 2, TMD_OWN|TMD_STP|TMD_ENP);
468 priv->txhead = head;
469
470 spin_lock_irqsave(priv->chip_lock, flags);
471 write_rreg (dev->base_addr, CSR0, CSR0_TDMD|CSR0_IENA);
472 dev->trans_start = jiffies;
473 spin_unlock_irqrestore(priv->chip_lock, flags);
474
475 /*
476 * If the next packet is owned by the ethernet device,
477 * then the tx ring is full and we can't add another
478 * packet.
479 */
480 if (am_readword(dev, priv->txhdr + (priv->txhead << 3) + 2) & TMD_OWN)
481 netif_stop_queue(dev);
482
483 dev_kfree_skb(skb);
484
485 return 0;
486}
487
488/*
489 * If we have a good packet(s), get it/them out of the buffers.
490 */
491static void
492am79c961_rx(struct net_device *dev, struct dev_priv *priv)
493{
494 do {
495 struct sk_buff *skb;
496 u_int hdraddr;
497 u_int pktaddr;
498 u_int status;
499 int len;
500
501 hdraddr = priv->rxhdr + (priv->rxtail << 3);
502 pktaddr = priv->rxbuffer[priv->rxtail];
503
504 status = am_readword (dev, hdraddr + 2);
505 if (status & RMD_OWN) /* do we own it? */
506 break;
507
508 priv->rxtail ++;
509 if (priv->rxtail >= RX_BUFFERS)
510 priv->rxtail = 0;
511
512 if ((status & (RMD_ERR|RMD_STP|RMD_ENP)) != (RMD_STP|RMD_ENP)) {
513 am_writeword (dev, hdraddr + 2, RMD_OWN);
514 priv->stats.rx_errors ++;
515 if (status & RMD_ERR) {
516 if (status & RMD_FRAM)
517 priv->stats.rx_frame_errors ++;
518 if (status & RMD_CRC)
519 priv->stats.rx_crc_errors ++;
520 } else if (status & RMD_STP)
521 priv->stats.rx_length_errors ++;
522 continue;
523 }
524
525 len = am_readword(dev, hdraddr + 6);
526 skb = dev_alloc_skb(len + 2);
527
528 if (skb) {
529 skb->dev = dev;
530 skb_reserve(skb, 2);
531
532 am_readbuffer(dev, pktaddr, skb_put(skb, len), len);
533 am_writeword(dev, hdraddr + 2, RMD_OWN);
534 skb->protocol = eth_type_trans(skb, dev);
535 netif_rx(skb);
536 dev->last_rx = jiffies;
537 priv->stats.rx_bytes += len;
538 priv->stats.rx_packets ++;
539 } else {
540 am_writeword (dev, hdraddr + 2, RMD_OWN);
541 printk (KERN_WARNING "%s: memory squeeze, dropping packet.\n", dev->name);
542 priv->stats.rx_dropped ++;
543 break;
544 }
545 } while (1);
546}
547
548/*
549 * Update stats for the transmitted packet
550 */
551static void
552am79c961_tx(struct net_device *dev, struct dev_priv *priv)
553{
554 do {
555 short len;
556 u_int hdraddr;
557 u_int status;
558
559 hdraddr = priv->txhdr + (priv->txtail << 3);
560 status = am_readword (dev, hdraddr + 2);
561 if (status & TMD_OWN)
562 break;
563
564 priv->txtail ++;
565 if (priv->txtail >= TX_BUFFERS)
566 priv->txtail = 0;
567
568 if (status & TMD_ERR) {
569 u_int status2;
570
571 priv->stats.tx_errors ++;
572
573 status2 = am_readword (dev, hdraddr + 6);
574
575 /*
576 * Clear the error byte
577 */
578 am_writeword (dev, hdraddr + 6, 0);
579
580 if (status2 & TST_RTRY)
581 priv->stats.collisions += 16;
582 if (status2 & TST_LCOL)
583 priv->stats.tx_window_errors ++;
584 if (status2 & TST_LCAR)
585 priv->stats.tx_carrier_errors ++;
586 if (status2 & TST_UFLO)
587 priv->stats.tx_fifo_errors ++;
588 continue;
589 }
590 priv->stats.tx_packets ++;
591 len = am_readword (dev, hdraddr + 4);
592 priv->stats.tx_bytes += -len;
593 } while (priv->txtail != priv->txhead);
594
595 netif_wake_queue(dev);
596}
597
598static irqreturn_t
599am79c961_interrupt(int irq, void *dev_id, struct pt_regs *regs)
600{
601 struct net_device *dev = (struct net_device *)dev_id;
602 struct dev_priv *priv = netdev_priv(dev);
603 u_int status, n = 100;
604 int handled = 0;
605
606 do {
607 status = read_rreg(dev->base_addr, CSR0);
608 write_rreg(dev->base_addr, CSR0, status &
609 (CSR0_IENA|CSR0_TINT|CSR0_RINT|
610 CSR0_MERR|CSR0_MISS|CSR0_CERR|CSR0_BABL));
611
612 if (status & CSR0_RINT) {
613 handled = 1;
614 am79c961_rx(dev, priv);
615 }
616 if (status & CSR0_TINT) {
617 handled = 1;
618 am79c961_tx(dev, priv);
619 }
620 if (status & CSR0_MISS) {
621 handled = 1;
622 priv->stats.rx_dropped ++;
623 }
624 if (status & CSR0_CERR) {
625 handled = 1;
626 mod_timer(&priv->timer, jiffies);
627 }
628 } while (--n && status & (CSR0_RINT | CSR0_TINT));
629
630 return IRQ_RETVAL(handled);
631}
632
633#ifdef CONFIG_NET_POLL_CONTROLLER
634static void am79c961_poll_controller(struct net_device *dev)
635{
636 unsigned long flags;
637 local_irq_save(flags);
638 am79c961_interrupt(dev->irq, dev, NULL);
639 local_irq_restore(flags);
640}
641#endif
642
643/*
644 * Initialise the chip. Note that we always expect
645 * to be entered with interrupts enabled.
646 */
647static int
648am79c961_hw_init(struct net_device *dev)
649{
650 struct dev_priv *priv = netdev_priv(dev);
651
652 spin_lock_irq(&priv->chip_lock);
653 write_rreg (dev->base_addr, CSR0, CSR0_STOP);
654 write_rreg (dev->base_addr, CSR3, CSR3_MASKALL);
655 spin_unlock_irq(&priv->chip_lock);
656
657 am79c961_ramtest(dev, 0x66);
658 am79c961_ramtest(dev, 0x99);
659
660 return 0;
661}
662
663static void __init am79c961_banner(void)
664{
665 static unsigned version_printed;
666
667 if (net_debug && version_printed++ == 0)
668 printk(KERN_INFO "%s", version);
669}
670
671static int __init am79c961_init(void)
672{
673 struct net_device *dev;
674 struct dev_priv *priv;
675 int i, ret;
676
677 dev = alloc_etherdev(sizeof(struct dev_priv));
678 ret = -ENOMEM;
679 if (!dev)
680 goto out;
681
682 priv = netdev_priv(dev);
683
684 /*
685 * Fixed address and IRQ lines here.
686 * The PNP initialisation should have been
687 * done by the ether bootp loader.
688 */
689 dev->base_addr = 0x220;
690 dev->irq = IRQ_EBSA110_ETHERNET;
691
692 ret = -ENODEV;
693 if (!request_region(dev->base_addr, 0x18, dev->name))
694 goto nodev;
695
696 /*
697 * Reset the device.
698 */
699 inb(dev->base_addr + NET_RESET);
700 udelay(5);
701
702 /*
703 * Check the manufacturer part of the
704 * ether address.
705 */
706 if (inb(dev->base_addr) != 0x08 ||
707 inb(dev->base_addr + 2) != 0x00 ||
708 inb(dev->base_addr + 4) != 0x2b)
709 goto release;
710
711 am79c961_banner();
712 printk(KERN_INFO "%s: ether address ", dev->name);
713
714 /* Retrive and print the ethernet address. */
715 for (i = 0; i < 6; i++) {
716 dev->dev_addr[i] = inb(dev->base_addr + i * 2) & 0xff;
717 printk (i == 5 ? "%02x\n" : "%02x:", dev->dev_addr[i]);
718 }
719
720 spin_lock_init(&priv->chip_lock);
721 init_timer(&priv->timer);
722 priv->timer.data = (unsigned long)dev;
723 priv->timer.function = am79c961_timer;
724
725 if (am79c961_hw_init(dev))
726 goto release;
727
728 dev->open = am79c961_open;
729 dev->stop = am79c961_close;
730 dev->hard_start_xmit = am79c961_sendpacket;
731 dev->get_stats = am79c961_getstats;
732 dev->set_multicast_list = am79c961_setmulticastlist;
733 dev->tx_timeout = am79c961_timeout;
734#ifdef CONFIG_NET_POLL_CONTROLLER
735 dev->poll_controller = am79c961_poll_controller;
736#endif
737
738 ret = register_netdev(dev);
739 if (ret == 0)
740 return 0;
741
742release:
743 release_region(dev->base_addr, 0x18);
744nodev:
745 free_netdev(dev);
746out:
747 return ret;
748}
749
750__initcall(am79c961_init);
diff --git a/drivers/net/arm/am79c961a.h b/drivers/net/arm/am79c961a.h
new file mode 100644
index 000000000000..1e9b05050cbe
--- /dev/null
+++ b/drivers/net/arm/am79c961a.h
@@ -0,0 +1,148 @@
1/*
2 * linux/drivers/net/am79c961.h
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8
9#ifndef _LINUX_am79c961a_H
10#define _LINUX_am79c961a_H
11
12/* use 0 for production, 1 for verification, >2 for debug. debug flags: */
13#define DEBUG_TX 2
14#define DEBUG_RX 4
15#define DEBUG_INT 8
16#define DEBUG_IC 16
17#ifndef NET_DEBUG
18#define NET_DEBUG 0
19#endif
20
21#define NET_UID 0
22#define NET_RDP 0x10
23#define NET_RAP 0x12
24#define NET_RESET 0x14
25#define NET_IDP 0x16
26
27/*
28 * RAP registers
29 */
30#define CSR0 0
31#define CSR0_INIT 0x0001
32#define CSR0_STRT 0x0002
33#define CSR0_STOP 0x0004
34#define CSR0_TDMD 0x0008
35#define CSR0_TXON 0x0010
36#define CSR0_RXON 0x0020
37#define CSR0_IENA 0x0040
38#define CSR0_INTR 0x0080
39#define CSR0_IDON 0x0100
40#define CSR0_TINT 0x0200
41#define CSR0_RINT 0x0400
42#define CSR0_MERR 0x0800
43#define CSR0_MISS 0x1000
44#define CSR0_CERR 0x2000
45#define CSR0_BABL 0x4000
46#define CSR0_ERR 0x8000
47
48#define CSR3 3
49#define CSR3_EMBA 0x0008
50#define CSR3_DXMT2PD 0x0010
51#define CSR3_LAPPEN 0x0020
52#define CSR3_DXSUFLO 0x0040
53#define CSR3_IDONM 0x0100
54#define CSR3_TINTM 0x0200
55#define CSR3_RINTM 0x0400
56#define CSR3_MERRM 0x0800
57#define CSR3_MISSM 0x1000
58#define CSR3_BABLM 0x4000
59#define CSR3_MASKALL 0x5F00
60
61#define CSR4 4
62#define CSR4_JABM 0x0001
63#define CSR4_JAB 0x0002
64#define CSR4_TXSTRTM 0x0004
65#define CSR4_TXSTRT 0x0008
66#define CSR4_RCVCCOM 0x0010
67#define CSR4_RCVCCO 0x0020
68#define CSR4_MFCOM 0x0100
69#define CSR4_MFCO 0x0200
70#define CSR4_ASTRP_RCV 0x0400
71#define CSR4_APAD_XMIT 0x0800
72
73#define CTRL1 5
74#define CTRL1_SPND 0x0001
75
76#define LADRL 8
77#define LADRM1 9
78#define LADRM2 10
79#define LADRH 11
80#define PADRL 12
81#define PADRM 13
82#define PADRH 14
83
84#define MODE 15
85#define MODE_DISRX 0x0001
86#define MODE_DISTX 0x0002
87#define MODE_LOOP 0x0004
88#define MODE_DTCRC 0x0008
89#define MODE_COLL 0x0010
90#define MODE_DRETRY 0x0020
91#define MODE_INTLOOP 0x0040
92#define MODE_PORT_AUI 0x0000
93#define MODE_PORT_10BT 0x0080
94#define MODE_DRXPA 0x2000
95#define MODE_DRXBA 0x4000
96#define MODE_PROMISC 0x8000
97
98#define BASERXL 24
99#define BASERXH 25
100#define BASETXL 30
101#define BASETXH 31
102
103#define POLLINT 47
104
105#define SIZERXR 76
106#define SIZETXR 78
107
108#define CSR_MFC 112
109
110#define RMD_ENP 0x0100
111#define RMD_STP 0x0200
112#define RMD_CRC 0x0800
113#define RMD_FRAM 0x2000
114#define RMD_ERR 0x4000
115#define RMD_OWN 0x8000
116
117#define TMD_ENP 0x0100
118#define TMD_STP 0x0200
119#define TMD_MORE 0x1000
120#define TMD_ERR 0x4000
121#define TMD_OWN 0x8000
122
123#define TST_RTRY 0x0400
124#define TST_LCAR 0x0800
125#define TST_LCOL 0x1000
126#define TST_UFLO 0x4000
127#define TST_BUFF 0x8000
128
129#define ISALED0 0x0004
130#define ISALED0_LNKST 0x8000
131
132struct dev_priv {
133 struct net_device_stats stats;
134 unsigned long rxbuffer[RX_BUFFERS];
135 unsigned long txbuffer[TX_BUFFERS];
136 unsigned char txhead;
137 unsigned char txtail;
138 unsigned char rxhead;
139 unsigned char rxtail;
140 unsigned long rxhdr;
141 unsigned long txhdr;
142 spinlock_t chip_lock;
143 struct timer_list timer;
144};
145
146extern int am79c961_probe (struct net_device *dev);
147
148#endif
diff --git a/drivers/net/arm/ether00.c b/drivers/net/arm/ether00.c
new file mode 100644
index 000000000000..4f1f4e31bda5
--- /dev/null
+++ b/drivers/net/arm/ether00.c
@@ -0,0 +1,1017 @@
1/*
2 * drivers/net/ether00.c
3 *
4 * Copyright (C) 2001 Altera Corporation
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20
21/* includes */
22#include <linux/config.h>
23#include <linux/pci.h>
24#include <linux/sched.h>
25#include <linux/netdevice.h>
26#include <linux/skbuff.h>
27#include <linux/etherdevice.h>
28#include <linux/module.h>
29#include <linux/tqueue.h>
30#include <linux/mtd/mtd.h>
31#include <linux/pld/pld_hotswap.h>
32#include <asm/arch/excalibur.h>
33#include <asm/arch/hardware.h>
34#include <asm/irq.h>
35#include <asm/io.h>
36#include <asm/sizes.h>
37
38#include <asm/arch/ether00.h>
39#include <asm/arch/tdkphy.h>
40
41
42MODULE_AUTHOR("Clive Davies");
43MODULE_DESCRIPTION("Altera Ether00 IP core driver");
44MODULE_LICENSE("GPL");
45
46#define PKT_BUF_SZ 1540 /* Size of each rx buffer */
47#define ETH_NR 4 /* Number of MACs this driver supports */
48
49#define DEBUG(x)
50
51#define __dma_va(x) (unsigned int)((unsigned int)priv->dma_data+(((unsigned int)(x))&(EXC_SPSRAM_BLOCK0_SIZE-1)))
52#define __dma_pa(x) (unsigned int)(EXC_SPSRAM_BLOCK0_BASE+(((unsigned int)(x))-(unsigned int)priv->dma_data))
53
54#define ETHER00_BASE 0
55#define ETHER00_TYPE
56#define ETHER00_NAME "ether00"
57#define MAC_REG_SIZE 0x400 /* size of MAC register area */
58
59
60
61/* typedefs */
62
63/* The definition of the driver control structure */
64
65#define RX_NUM_BUFF 10
66#define RX_NUM_FDESC 10
67#define TX_NUM_FDESC 10
68
69struct tx_fda_ent{
70 FDA_DESC fd;
71 BUF_DESC bd;
72 BUF_DESC pad;
73};
74struct rx_fda_ent{
75 FDA_DESC fd;
76 BUF_DESC bd;
77 BUF_DESC pad;
78};
79struct rx_blist_ent{
80 FDA_DESC fd;
81 BUF_DESC bd;
82 BUF_DESC pad;
83};
84struct net_priv
85{
86 struct net_device_stats stats;
87 struct sk_buff* skb;
88 void* dma_data;
89 struct rx_blist_ent* rx_blist_vp;
90 struct rx_fda_ent* rx_fda_ptr;
91 struct tx_fda_ent* tx_fdalist_vp;
92 struct tq_struct tq_memupdate;
93 unsigned char memupdate_scheduled;
94 unsigned char rx_disabled;
95 unsigned char queue_stopped;
96 spinlock_t rx_lock;
97};
98
99static const char vendor_id[2]={0x07,0xed};
100
101#ifdef ETHER00_DEBUG
102
103/* Dump (most) registers for debugging puposes */
104
105static void dump_regs(struct net_device *dev){
106 struct net_priv* priv=dev->priv;
107 unsigned int* i;
108
109 printk("\n RX free descriptor area:\n");
110
111 for(i=(unsigned int*)priv->rx_fda_ptr;
112 i<((unsigned int*)(priv->rx_fda_ptr+RX_NUM_FDESC));){
113 printk("%#8x %#8x %#8x %#8x\n",*i,*(i+1),*(i+2),*(i+3));
114 i+=4;
115 }
116
117 printk("\n RX buffer list:\n");
118
119 for(i=(unsigned int*)priv->rx_blist_vp;
120 i<((unsigned int*)(priv->rx_blist_vp+RX_NUM_BUFF));){
121 printk("%#8x %#8x %#8x %#8x\n",*i,*(i+1),*(i+2),*(i+3));
122 i+=4;
123 }
124
125 printk("\n TX frame descriptor list:\n");
126
127 for(i=(unsigned int*)priv->tx_fdalist_vp;
128 i<((unsigned int*)(priv->tx_fdalist_vp+TX_NUM_FDESC));){
129 printk("%#8x %#8x %#8x %#8x\n",*i,*(i+1),*(i+2),*(i+3));
130 i+=4;
131 }
132
133 printk("\ndma ctl=%#x\n",readw(ETHER_DMA_CTL(dev->base_addr)));
134 printk("txfrmptr=%#x\n",readw(ETHER_TXFRMPTR(dev->base_addr)));
135 printk("txthrsh=%#x\n",readw(ETHER_TXTHRSH(dev->base_addr)));
136 printk("txpollctr=%#x\n",readw(ETHER_TXPOLLCTR(dev->base_addr)));
137 printk("blfrmptr=%#x\n",readw(ETHER_BLFRMPTR(dev->base_addr)));
138 printk("rxfragsize=%#x\n",readw(ETHER_RXFRAGSIZE(dev->base_addr)));
139 printk("tx_int_en=%#x\n",readw(ETHER_INT_EN(dev->base_addr)));
140 printk("fda_bas=%#x\n",readw(ETHER_FDA_BAS(dev->base_addr)));
141 printk("fda_lim=%#x\n",readw(ETHER_FDA_LIM(dev->base_addr)));
142 printk("int_src=%#x\n",readw(ETHER_INT_SRC(dev->base_addr)));
143 printk("pausecnt=%#x\n",readw(ETHER_PAUSECNT(dev->base_addr)));
144 printk("rempaucnt=%#x\n",readw(ETHER_REMPAUCNT(dev->base_addr)));
145 printk("txconfrmstat=%#x\n",readw(ETHER_TXCONFRMSTAT(dev->base_addr)));
146 printk("mac_ctl=%#x\n",readw(ETHER_MAC_CTL(dev->base_addr)));
147 printk("arc_ctl=%#x\n",readw(ETHER_ARC_CTL(dev->base_addr)));
148 printk("tx_ctl=%#x\n",readw(ETHER_TX_CTL(dev->base_addr)));
149}
150#endif /* ETHER00_DEBUG */
151
152
153static int ether00_write_phy(struct net_device *dev, short address, short value)
154{
155 volatile int count = 1024;
156 writew(value,ETHER_MD_DATA(dev->base_addr));
157 writew( ETHER_MD_CA_BUSY_MSK |
158 ETHER_MD_CA_WR_MSK |
159 (address & ETHER_MD_CA_ADDR_MSK),
160 ETHER_MD_CA(dev->base_addr));
161
162 /* Wait for the command to complete */
163 while((readw(ETHER_MD_CA(dev->base_addr)) & ETHER_MD_CA_BUSY_MSK)&&count){
164 count--;
165 }
166 if (!count){
167 printk("Write to phy failed, addr=%#x, data=%#x\n",address, value);
168 return -EIO;
169 }
170 return 0;
171}
172
173static int ether00_read_phy(struct net_device *dev, short address)
174{
175 volatile int count = 1024;
176 writew( ETHER_MD_CA_BUSY_MSK |
177 (address & ETHER_MD_CA_ADDR_MSK),
178 ETHER_MD_CA(dev->base_addr));
179
180 /* Wait for the command to complete */
181 while((readw(ETHER_MD_CA(dev->base_addr)) & ETHER_MD_CA_BUSY_MSK)&&count){
182 count--;
183 }
184 if (!count){
185 printk(KERN_WARNING "Read from phy timed out\n");
186 return -EIO;
187 }
188 return readw(ETHER_MD_DATA(dev->base_addr));
189}
190
191static void ether00_phy_int(int irq_num, void* dev_id, struct pt_regs* regs)
192{
193 struct net_device* dev=dev_id;
194 int irq_status;
195
196 irq_status=ether00_read_phy(dev, PHY_IRQ_CONTROL);
197
198 if(irq_status & PHY_IRQ_CONTROL_ANEG_COMP_INT_MSK){
199 /*
200 * Autonegotiation complete on epxa10db. The mac doesn't
201 * twig if we're in full duplex so we need to check the
202 * phy status register and configure the mac accordingly
203 */
204 if(ether00_read_phy(dev, PHY_STATUS)&(PHY_STATUS_10T_F_MSK|PHY_STATUS_100_X_F_MSK)){
205 int tmp;
206 tmp=readl(ETHER_MAC_CTL(dev->base_addr));
207 writel(tmp|ETHER_MAC_CTL_FULLDUP_MSK,ETHER_MAC_CTL(dev->base_addr));
208 }
209 }
210
211 if(irq_status&PHY_IRQ_CONTROL_LS_CHG_INT_MSK){
212
213 if(ether00_read_phy(dev, PHY_STATUS)& PHY_STATUS_LINK_MSK){
214 /* Link is up */
215 netif_carrier_on(dev);
216 //printk("Carrier on\n");
217 }else{
218 netif_carrier_off(dev);
219 //printk("Carrier off\n");
220
221 }
222 }
223
224}
225
226static void setup_blist_entry(struct sk_buff* skb,struct rx_blist_ent* blist_ent_ptr){
227 /* Make the buffer consistent with the cache as the mac is going to write
228 * directly into it*/
229 blist_ent_ptr->fd.FDSystem=(unsigned int)skb;
230 blist_ent_ptr->bd.BuffData=(char*)__pa(skb->data);
231 consistent_sync(skb->data,PKT_BUF_SZ,PCI_DMA_FROMDEVICE);
232 /* align IP on 16 Byte (DMA_CTL set to skip 2 bytes) */
233 skb_reserve(skb,2);
234 blist_ent_ptr->bd.BuffLength=PKT_BUF_SZ-2;
235 blist_ent_ptr->fd.FDLength=1;
236 blist_ent_ptr->fd.FDCtl=FDCTL_COWNSFD_MSK;
237 blist_ent_ptr->bd.BDCtl=BDCTL_COWNSBD_MSK;
238}
239
240
241static int ether00_mem_init(struct net_device* dev)
242{
243 struct net_priv* priv=dev->priv;
244 struct tx_fda_ent *tx_fd_ptr,*tx_end_ptr;
245 struct rx_blist_ent* blist_ent_ptr;
246 int i;
247
248 /*
249 * Grab a block of on chip SRAM to contain the control stuctures for
250 * the ethernet MAC. This uncached becuase it needs to be accesses by both
251 * bus masters (cpu + mac). However, it shouldn't matter too much in terms
252 * of speed as its on chip memory
253 */
254 priv->dma_data=ioremap_nocache(EXC_SPSRAM_BLOCK0_BASE,EXC_SPSRAM_BLOCK0_SIZE );
255 if (!priv->dma_data)
256 return -ENOMEM;
257
258 priv->rx_fda_ptr=(struct rx_fda_ent*)priv->dma_data;
259 /*
260 * Now share it out amongst the Frame descriptors and the buffer list
261 */
262 priv->rx_blist_vp=(struct rx_blist_ent*)((unsigned int)priv->dma_data+RX_NUM_FDESC*sizeof(struct rx_fda_ent));
263
264 /*
265 *Initalise the FDA list
266 */
267 /* set ownership to the controller */
268 memset(priv->rx_fda_ptr,0x80,RX_NUM_FDESC*sizeof(struct rx_fda_ent));
269
270 /*
271 *Initialise the buffer list
272 */
273 blist_ent_ptr=priv->rx_blist_vp;
274 i=0;
275 while(blist_ent_ptr<(priv->rx_blist_vp+RX_NUM_BUFF)){
276 struct sk_buff *skb;
277 blist_ent_ptr->fd.FDLength=1;
278 skb=dev_alloc_skb(PKT_BUF_SZ);
279 if(skb){
280 setup_blist_entry(skb,blist_ent_ptr);
281 blist_ent_ptr->fd.FDNext=(FDA_DESC*)__dma_pa(blist_ent_ptr+1);
282 blist_ent_ptr->bd.BDStat=i++;
283 blist_ent_ptr++;
284 }
285 else
286 {
287 printk("Failed to initalise buffer list\n");
288 }
289
290 }
291 blist_ent_ptr--;
292 blist_ent_ptr->fd.FDNext=(FDA_DESC*)__dma_pa(priv->rx_blist_vp);
293
294 priv->tx_fdalist_vp=(struct tx_fda_ent*)(priv->rx_blist_vp+RX_NUM_BUFF);
295
296 /* Initialise the buffers to be a circular list. The mac will then go poll
297 * the list until it finds a frame ready to transmit */
298 tx_end_ptr=priv->tx_fdalist_vp+TX_NUM_FDESC;
299 for(tx_fd_ptr=priv->tx_fdalist_vp;tx_fd_ptr<tx_end_ptr;tx_fd_ptr++){
300 tx_fd_ptr->fd.FDNext=(FDA_DESC*)__dma_pa((tx_fd_ptr+1));
301 tx_fd_ptr->fd.FDCtl=1;
302 tx_fd_ptr->fd.FDStat=0;
303 tx_fd_ptr->fd.FDLength=1;
304
305 }
306 /* Change the last FDNext pointer to make a circular list */
307 tx_fd_ptr--;
308 tx_fd_ptr->fd.FDNext=(FDA_DESC*)__dma_pa(priv->tx_fdalist_vp);
309
310 /* Point the device at the chain of Rx and Tx Buffers */
311 writel((unsigned int)__dma_pa(priv->rx_fda_ptr),ETHER_FDA_BAS(dev->base_addr));
312 writel((RX_NUM_FDESC-1)*sizeof(struct rx_fda_ent),ETHER_FDA_LIM(dev->base_addr));
313 writel((unsigned int)__dma_pa(priv->rx_blist_vp),ETHER_BLFRMPTR(dev->base_addr));
314
315 writel((unsigned int)__dma_pa(priv->tx_fdalist_vp),ETHER_TXFRMPTR(dev->base_addr));
316
317 return 0;
318}
319
320
321void ether00_mem_update(void* dev_id)
322{
323 struct net_device* dev=dev_id;
324 struct net_priv* priv=dev->priv;
325 struct sk_buff* skb;
326 struct tx_fda_ent *fda_ptr=priv->tx_fdalist_vp;
327 struct rx_blist_ent* blist_ent_ptr;
328 unsigned long flags;
329
330 priv->tq_memupdate.sync=0;
331 //priv->tq_memupdate.list=
332 priv->memupdate_scheduled=0;
333
334 /* Transmit interrupt */
335 while(fda_ptr<(priv->tx_fdalist_vp+TX_NUM_FDESC)){
336 if(!(FDCTL_COWNSFD_MSK&fda_ptr->fd.FDCtl) && (ETHER_TX_STAT_COMP_MSK&fda_ptr->fd.FDStat)){
337 priv->stats.tx_packets++;
338 priv->stats.tx_bytes+=fda_ptr->bd.BuffLength;
339 skb=(struct sk_buff*)fda_ptr->fd.FDSystem;
340 //printk("%d:txcln:fda=%#x skb=%#x\n",jiffies,fda_ptr,skb);
341 dev_kfree_skb(skb);
342 fda_ptr->fd.FDSystem=0;
343 fda_ptr->fd.FDStat=0;
344 fda_ptr->fd.FDCtl=0;
345 }
346 fda_ptr++;
347 }
348 /* Fill in any missing buffers from the received queue */
349 spin_lock_irqsave(&priv->rx_lock,flags);
350 blist_ent_ptr=priv->rx_blist_vp;
351 while(blist_ent_ptr<(priv->rx_blist_vp+RX_NUM_BUFF)){
352 /* fd.FDSystem of 0 indicates we failed to allocate the buffer in the ISR */
353 if(!blist_ent_ptr->fd.FDSystem){
354 struct sk_buff *skb;
355 skb=dev_alloc_skb(PKT_BUF_SZ);
356 blist_ent_ptr->fd.FDSystem=(unsigned int)skb;
357 if(skb){
358 setup_blist_entry(skb,blist_ent_ptr);
359 }
360 else
361 {
362 break;
363 }
364 }
365 blist_ent_ptr++;
366 }
367 spin_unlock_irqrestore(&priv->rx_lock,flags);
368 if(priv->queue_stopped){
369 //printk("%d:cln:start q\n",jiffies);
370 netif_start_queue(dev);
371 }
372 if(priv->rx_disabled){
373 //printk("%d:enable_irq\n",jiffies);
374 priv->rx_disabled=0;
375 writel(ETHER_RX_CTL_RXEN_MSK,ETHER_RX_CTL(dev->base_addr));
376
377 }
378}
379
380
381static void ether00_int( int irq_num, void* dev_id, struct pt_regs* regs)
382{
383 struct net_device* dev=dev_id;
384 struct net_priv* priv=dev->priv;
385
386 unsigned int interruptValue;
387
388 interruptValue=readl(ETHER_INT_SRC(dev->base_addr));
389
390 //printk("INT_SRC=%x\n",interruptValue);
391
392 if(!(readl(ETHER_INT_SRC(dev->base_addr)) & ETHER_INT_SRC_IRQ_MSK))
393 {
394 return; /* Interrupt wasn't caused by us!! */
395 }
396
397 if(readl(ETHER_INT_SRC(dev->base_addr))&
398 (ETHER_INT_SRC_INTMACRX_MSK |
399 ETHER_INT_SRC_FDAEX_MSK |
400 ETHER_INT_SRC_BLEX_MSK)) {
401 struct rx_blist_ent* blist_ent_ptr;
402 struct rx_fda_ent* fda_ent_ptr;
403 struct sk_buff* skb;
404
405 fda_ent_ptr=priv->rx_fda_ptr;
406 spin_lock(&priv->rx_lock);
407 while(fda_ent_ptr<(priv->rx_fda_ptr+RX_NUM_FDESC)){
408 int result;
409
410 if(!(fda_ent_ptr->fd.FDCtl&FDCTL_COWNSFD_MSK))
411 {
412 /* This frame is ready for processing */
413 /*find the corresponding buffer in the bufferlist */
414 blist_ent_ptr=priv->rx_blist_vp+fda_ent_ptr->bd.BDStat;
415 skb=(struct sk_buff*)blist_ent_ptr->fd.FDSystem;
416
417 /* Pass this skb up the stack */
418 skb->dev=dev;
419 skb_put(skb,fda_ent_ptr->fd.FDLength);
420 skb->protocol=eth_type_trans(skb,dev);
421 skb->ip_summed=CHECKSUM_UNNECESSARY;
422 result=netif_rx(skb);
423 /* Update statistics */
424 priv->stats.rx_packets++;
425 priv->stats.rx_bytes+=fda_ent_ptr->fd.FDLength;
426
427 /* Free the FDA entry */
428 fda_ent_ptr->bd.BDStat=0xff;
429 fda_ent_ptr->fd.FDCtl=FDCTL_COWNSFD_MSK;
430
431 /* Allocate a new skb and point the bd entry to it */
432 blist_ent_ptr->fd.FDSystem=0;
433 skb=dev_alloc_skb(PKT_BUF_SZ);
434 //printk("allocskb=%#x\n",skb);
435 if(skb){
436 setup_blist_entry(skb,blist_ent_ptr);
437
438 }
439 else if(!priv->memupdate_scheduled){
440 int tmp;
441 /* There are no buffers at the moment, so schedule */
442 /* the background task to sort this out */
443 schedule_task(&priv->tq_memupdate);
444 priv->memupdate_scheduled=1;
445 printk(KERN_DEBUG "%s:No buffers",dev->name);
446 /* If this interrupt was due to a lack of buffers then
447 * we'd better stop the receiver too */
448 if(interruptValue&ETHER_INT_SRC_BLEX_MSK){
449 priv->rx_disabled=1;
450 tmp=readl(ETHER_INT_SRC(dev->base_addr));
451 writel(tmp&~ETHER_RX_CTL_RXEN_MSK,ETHER_RX_CTL(dev->base_addr));
452 printk(KERN_DEBUG "%s:Halting rx",dev->name);
453 }
454
455 }
456
457 }
458 fda_ent_ptr++;
459 }
460 spin_unlock(&priv->rx_lock);
461
462 /* Clear the interrupts */
463 writel(ETHER_INT_SRC_INTMACRX_MSK | ETHER_INT_SRC_FDAEX_MSK
464 | ETHER_INT_SRC_BLEX_MSK,ETHER_INT_SRC(dev->base_addr));
465
466 }
467
468 if(readl(ETHER_INT_SRC(dev->base_addr))&ETHER_INT_SRC_INTMACTX_MSK){
469
470 if(!priv->memupdate_scheduled){
471 schedule_task(&priv->tq_memupdate);
472 priv->memupdate_scheduled=1;
473 }
474 /* Clear the interrupt */
475 writel(ETHER_INT_SRC_INTMACTX_MSK,ETHER_INT_SRC(dev->base_addr));
476 }
477
478 if (readl(ETHER_INT_SRC(dev->base_addr)) & (ETHER_INT_SRC_SWINT_MSK|
479 ETHER_INT_SRC_INTEARNOT_MSK|
480 ETHER_INT_SRC_INTLINK_MSK|
481 ETHER_INT_SRC_INTEXBD_MSK|
482 ETHER_INT_SRC_INTTXCTLCMP_MSK))
483 {
484 /*
485 * Not using any of these so they shouldn't happen
486 *
487 * In the cased of INTEXBD - if you allocate more
488 * than 28 decsriptors you may need to think about this
489 */
490 printk("Not using this interrupt\n");
491 }
492
493 if (readl(ETHER_INT_SRC(dev->base_addr)) &
494 (ETHER_INT_SRC_INTSBUS_MSK |
495 ETHER_INT_SRC_INTNRABT_MSK
496 |ETHER_INT_SRC_DMPARERR_MSK))
497 {
498 /*
499 * Hardware errors, we can either ignore them and hope they go away
500 *or reset the device, I'll try the first for now to see if they happen
501 */
502 printk("Hardware error\n");
503 }
504}
505
506static void ether00_setup_ethernet_address(struct net_device* dev)
507{
508 int tmp;
509
510 dev->addr_len=6;
511 writew(0,ETHER_ARC_ADR(dev->base_addr));
512 writel((dev->dev_addr[0]<<24) |
513 (dev->dev_addr[1]<<16) |
514 (dev->dev_addr[2]<<8) |
515 dev->dev_addr[3],
516 ETHER_ARC_DATA(dev->base_addr));
517
518 writew(4,ETHER_ARC_ADR(dev->base_addr));
519 tmp=readl(ETHER_ARC_DATA(dev->base_addr));
520 tmp&=0xffff;
521 tmp|=(dev->dev_addr[4]<<24) | (dev->dev_addr[5]<<16);
522 writel(tmp, ETHER_ARC_DATA(dev->base_addr));
523 /* Enable this entry in the ARC */
524
525 writel(1,ETHER_ARC_ENA(dev->base_addr));
526
527 return;
528}
529
530
531static void ether00_reset(struct net_device *dev)
532{
533 /* reset the controller */
534 writew(ETHER_MAC_CTL_RESET_MSK,ETHER_MAC_CTL(dev->base_addr));
535
536 /*
537 * Make sure we're not going to send anything
538 */
539
540 writew(ETHER_TX_CTL_TXHALT_MSK,ETHER_TX_CTL(dev->base_addr));
541
542 /*
543 * Make sure we're not going to receive anything
544 */
545 writew(ETHER_RX_CTL_RXHALT_MSK,ETHER_RX_CTL(dev->base_addr));
546
547 /*
548 * Disable Interrupts for now, and set the burst size to 8 bytes
549 */
550
551 writel(ETHER_DMA_CTL_INTMASK_MSK |
552 ((8 << ETHER_DMA_CTL_DMBURST_OFST) & ETHER_DMA_CTL_DMBURST_MSK)
553 |(2<<ETHER_DMA_CTL_RXALIGN_OFST),
554 ETHER_DMA_CTL(dev->base_addr));
555
556
557 /*
558 * Set TxThrsh - start transmitting a packet after 1514
559 * bytes or when a packet is complete, whichever comes first
560 */
561 writew(1514,ETHER_TXTHRSH(dev->base_addr));
562
563 /*
564 * Set TxPollCtr. Each cycle is
565 * 61.44 microseconds with a 33 MHz bus
566 */
567 writew(1,ETHER_TXPOLLCTR(dev->base_addr));
568
569 /*
570 * Set Rx_Ctl - Turn off reception and let RxData turn it
571 * on later
572 */
573 writew(ETHER_RX_CTL_RXHALT_MSK,ETHER_RX_CTL(dev->base_addr));
574
575}
576
577
578static void ether00_set_multicast(struct net_device* dev)
579{
580 int count=dev->mc_count;
581
582 /* Set promiscuous mode if it's asked for. */
583
584 if (dev->flags&IFF_PROMISC){
585
586 writew( ETHER_ARC_CTL_COMPEN_MSK |
587 ETHER_ARC_CTL_BROADACC_MSK |
588 ETHER_ARC_CTL_GROUPACC_MSK |
589 ETHER_ARC_CTL_STATIONACC_MSK,
590 ETHER_ARC_CTL(dev->base_addr));
591 return;
592 }
593
594 /*
595 * Get all multicast packets if required, or if there are too
596 * many addresses to fit in hardware
597 */
598 if (dev->flags & IFF_ALLMULTI){
599 writew( ETHER_ARC_CTL_COMPEN_MSK |
600 ETHER_ARC_CTL_GROUPACC_MSK |
601 ETHER_ARC_CTL_BROADACC_MSK,
602 ETHER_ARC_CTL(dev->base_addr));
603 return;
604 }
605 if (dev->mc_count > (ETHER_ARC_SIZE - 1)){
606
607 printk(KERN_WARNING "Too many multicast addresses for hardware to filter - receiving all multicast packets\n");
608 writew( ETHER_ARC_CTL_COMPEN_MSK |
609 ETHER_ARC_CTL_GROUPACC_MSK |
610 ETHER_ARC_CTL_BROADACC_MSK,
611 ETHER_ARC_CTL(dev->base_addr));
612 return;
613 }
614
615 if(dev->mc_count){
616 struct dev_mc_list *mc_list_ent=dev->mc_list;
617 unsigned int temp,i;
618 DEBUG(printk("mc_count=%d mc_list=%#x\n",dev-> mc_count, dev->mc_list));
619 DEBUG(printk("mc addr=%02#x%02x%02x%02x%02x%02x\n",
620 mc_list_ent->dmi_addr[5],
621 mc_list_ent->dmi_addr[4],
622 mc_list_ent->dmi_addr[3],
623 mc_list_ent->dmi_addr[2],
624 mc_list_ent->dmi_addr[1],
625 mc_list_ent->dmi_addr[0]);)
626
627 /*
628 * The first 6 bytes are the MAC address, so
629 * don't change them!
630 */
631 writew(4,ETHER_ARC_ADR(dev->base_addr));
632 temp=readl(ETHER_ARC_DATA(dev->base_addr));
633 temp&=0xffff0000;
634
635 /* Disable the current multicast stuff */
636 writel(1,ETHER_ARC_ENA(dev->base_addr));
637
638 for(;;){
639 temp|=mc_list_ent->dmi_addr[1] |
640 mc_list_ent->dmi_addr[0]<<8;
641 writel(temp,ETHER_ARC_DATA(dev->base_addr));
642
643 i=readl(ETHER_ARC_ADR(dev->base_addr));
644 writew(i+4,ETHER_ARC_ADR(dev->base_addr));
645
646 temp=mc_list_ent->dmi_addr[5]|
647 mc_list_ent->dmi_addr[4]<<8 |
648 mc_list_ent->dmi_addr[3]<<16 |
649 mc_list_ent->dmi_addr[2]<<24;
650 writel(temp,ETHER_ARC_DATA(dev->base_addr));
651
652 count--;
653 if(!mc_list_ent->next || !count){
654 break;
655 }
656 DEBUG(printk("mc_list_next=%#x\n",mc_list_ent->next);)
657 mc_list_ent=mc_list_ent->next;
658
659
660 i=readl(ETHER_ARC_ADR(dev->base_addr));
661 writel(i+4,ETHER_ARC_ADR(dev->base_addr));
662
663 temp=mc_list_ent->dmi_addr[3]|
664 mc_list_ent->dmi_addr[2]<<8 |
665 mc_list_ent->dmi_addr[1]<<16 |
666 mc_list_ent->dmi_addr[0]<<24;
667 writel(temp,ETHER_ARC_DATA(dev->base_addr));
668
669 i=readl(ETHER_ARC_ADR(dev->base_addr));
670 writel(i+4,ETHER_ARC_ADR(dev->base_addr));
671
672 temp=mc_list_ent->dmi_addr[4]<<16 |
673 mc_list_ent->dmi_addr[5]<<24;
674
675 writel(temp,ETHER_ARC_DATA(dev->base_addr));
676
677 count--;
678 if(!mc_list_ent->next || !count){
679 break;
680 }
681 mc_list_ent=mc_list_ent->next;
682 }
683
684
685 if(count)
686 printk(KERN_WARNING "Multicast list size error\n");
687
688
689 writew( ETHER_ARC_CTL_BROADACC_MSK|
690 ETHER_ARC_CTL_COMPEN_MSK,
691 ETHER_ARC_CTL(dev->base_addr));
692
693 }
694
695 /* enable the active ARC enties */
696 writew((1<<(count+2))-1,ETHER_ARC_ENA(dev->base_addr));
697}
698
699
700static int ether00_open(struct net_device* dev)
701{
702 int result,tmp;
703 struct net_priv* priv;
704
705 if (!is_valid_ether_addr(dev->dev_addr))
706 return -EINVAL;
707
708 /* Install interrupt handlers */
709 result=request_irq(dev->irq,ether00_int,0,"ether00",dev);
710 if(result)
711 goto open_err1;
712
713 result=request_irq(2,ether00_phy_int,0,"ether00_phy",dev);
714 if(result)
715 goto open_err2;
716
717 ether00_reset(dev);
718 result=ether00_mem_init(dev);
719 if(result)
720 goto open_err3;
721
722
723 ether00_setup_ethernet_address(dev);
724
725 ether00_set_multicast(dev);
726
727 result=ether00_write_phy(dev,PHY_CONTROL, PHY_CONTROL_ANEGEN_MSK | PHY_CONTROL_RANEG_MSK);
728 if(result)
729 goto open_err4;
730 result=ether00_write_phy(dev,PHY_IRQ_CONTROL, PHY_IRQ_CONTROL_LS_CHG_IE_MSK |
731 PHY_IRQ_CONTROL_ANEG_COMP_IE_MSK);
732 if(result)
733 goto open_err4;
734
735 /* Start the device enable interrupts */
736 writew(ETHER_RX_CTL_RXEN_MSK
737// | ETHER_RX_CTL_STRIPCRC_MSK
738 | ETHER_RX_CTL_ENGOOD_MSK
739 | ETHER_RX_CTL_ENRXPAR_MSK| ETHER_RX_CTL_ENLONGERR_MSK
740 | ETHER_RX_CTL_ENOVER_MSK| ETHER_RX_CTL_ENCRCERR_MSK,
741 ETHER_RX_CTL(dev->base_addr));
742
743 writew(ETHER_TX_CTL_TXEN_MSK|
744 ETHER_TX_CTL_ENEXDEFER_MSK|
745 ETHER_TX_CTL_ENLCARR_MSK|
746 ETHER_TX_CTL_ENEXCOLL_MSK|
747 ETHER_TX_CTL_ENLATECOLL_MSK|
748 ETHER_TX_CTL_ENTXPAR_MSK|
749 ETHER_TX_CTL_ENCOMP_MSK,
750 ETHER_TX_CTL(dev->base_addr));
751
752 tmp=readl(ETHER_DMA_CTL(dev->base_addr));
753 writel(tmp&~ETHER_DMA_CTL_INTMASK_MSK,ETHER_DMA_CTL(dev->base_addr));
754
755 return 0;
756
757 open_err4:
758 ether00_reset(dev);
759 open_err3:
760 free_irq(2,dev);
761 open_err2:
762 free_irq(dev->irq,dev);
763 open_err1:
764 return result;
765
766}
767
768
769static int ether00_tx(struct sk_buff* skb, struct net_device* dev)
770{
771 struct net_priv *priv=dev->priv;
772 struct tx_fda_ent *fda_ptr;
773 int i;
774
775
776 /*
777 * Find an empty slot in which to stick the frame
778 */
779 fda_ptr=(struct tx_fda_ent*)__dma_va(readl(ETHER_TXFRMPTR(dev->base_addr)));
780 i=0;
781 while(i<TX_NUM_FDESC){
782 if (fda_ptr->fd.FDStat||(fda_ptr->fd.FDCtl & FDCTL_COWNSFD_MSK)){
783 fda_ptr =(struct tx_fda_ent*) __dma_va((struct tx_fda_ent*)fda_ptr->fd.FDNext);
784 }
785 else {
786 break;
787 }
788 i++;
789 }
790
791 /* Write the skb data from the cache*/
792 consistent_sync(skb->data,skb->len,PCI_DMA_TODEVICE);
793 fda_ptr->bd.BuffData=(char*)__pa(skb->data);
794 fda_ptr->bd.BuffLength=(unsigned short)skb->len;
795 /* Save the pointer to the skb for freeing later */
796 fda_ptr->fd.FDSystem=(unsigned int)skb;
797 fda_ptr->fd.FDStat=0;
798 /* Pass ownership of the buffers to the controller */
799 fda_ptr->fd.FDCtl=1;
800 fda_ptr->fd.FDCtl|=FDCTL_COWNSFD_MSK;
801
802 /* If the next buffer in the list is full, stop the queue */
803 fda_ptr=(struct tx_fda_ent*)__dma_va(fda_ptr->fd.FDNext);
804 if ((fda_ptr->fd.FDStat)||(fda_ptr->fd.FDCtl & FDCTL_COWNSFD_MSK)){
805 netif_stop_queue(dev);
806 priv->queue_stopped=1;
807 }
808
809 return 0;
810}
811
812static struct net_device_stats *ether00_stats(struct net_device* dev)
813{
814 struct net_priv *priv=dev->priv;
815 return &priv->stats;
816}
817
818
819static int ether00_stop(struct net_device* dev)
820{
821 struct net_priv *priv=dev->priv;
822 int tmp;
823
824 /* Stop/disable the device. */
825 tmp=readw(ETHER_RX_CTL(dev->base_addr));
826 tmp&=~(ETHER_RX_CTL_RXEN_MSK | ETHER_RX_CTL_ENGOOD_MSK);
827 tmp|=ETHER_RX_CTL_RXHALT_MSK;
828 writew(tmp,ETHER_RX_CTL(dev->base_addr));
829
830 tmp=readl(ETHER_TX_CTL(dev->base_addr));
831 tmp&=~ETHER_TX_CTL_TXEN_MSK;
832 tmp|=ETHER_TX_CTL_TXHALT_MSK;
833 writel(tmp,ETHER_TX_CTL(dev->base_addr));
834
835 /* Free up system resources */
836 free_irq(dev->irq,dev);
837 free_irq(2,dev);
838 iounmap(priv->dma_data);
839
840 return 0;
841}
842
843
844static void ether00_get_ethernet_address(struct net_device* dev)
845{
846 struct mtd_info *mymtd=NULL;
847 int i;
848 size_t retlen;
849
850 /*
851 * For the Epxa10 dev board (camelot), the ethernet MAC
852 * address is of the form 00:aa:aa:00:xx:xx where
853 * 00:aa:aa is the Altera vendor ID and xx:xx is the
854 * last 2 bytes of the board serial number, as programmed
855 * into the OTP area of the flash device on EBI1. If this
856 * isn't an expa10 dev board, or there's no mtd support to
857 * read the serial number from flash then we'll force the
858 * use to set their own mac address using ifconfig.
859 */
860
861#ifdef CONFIG_ARCH_CAMELOT
862#ifdef CONFIG_MTD
863 /* get the mtd_info structure for the first mtd device*/
864 for(i=0;i<MAX_MTD_DEVICES;i++){
865 mymtd=get_mtd_device(NULL,i);
866 if(!mymtd||!strcmp(mymtd->name,"EPXA10DB flash"))
867 break;
868 }
869
870 if(!mymtd || !mymtd->read_user_prot_reg){
871 printk(KERN_WARNING "%s: Failed to read MAC address from flash\n",dev->name);
872 }else{
873 mymtd->read_user_prot_reg(mymtd,2,1,&retlen,&dev->dev_addr[5]);
874 mymtd->read_user_prot_reg(mymtd,3,1,&retlen,&dev->dev_addr[4]);
875 dev->dev_addr[3]=0;
876 dev->dev_addr[2]=vendor_id[1];
877 dev->dev_addr[1]=vendor_id[0];
878 dev->dev_addr[0]=0;
879 }
880#else
881 printk(KERN_WARNING "%s: MTD support required to read MAC address from EPXA10 dev board\n", dev->name);
882#endif
883#endif
884
885 if (!is_valid_ether_addr(dev->dev_addr))
886 printk("%s: Invalid ethernet MAC address. Please set using "
887 "ifconfig\n", dev->name);
888
889}
890
891/*
892 * Keep a mapping of dev_info addresses -> port lines to use when
893 * removing ports dev==NULL indicates unused entry
894 */
895
896
897static struct net_device* dev_list[ETH_NR];
898
899static int ether00_add_device(struct pldhs_dev_info* dev_info,void* dev_ps_data)
900{
901 struct net_device *dev;
902 struct net_priv *priv;
903 void *map_addr;
904 int result;
905 int i;
906
907 i=0;
908 while(dev_list[i] && i < ETH_NR)
909 i++;
910
911 if(i==ETH_NR){
912 printk(KERN_WARNING "ether00: Maximum number of ports reached\n");
913 return 0;
914 }
915
916
917 if (!request_mem_region(dev_info->base_addr, MAC_REG_SIZE, "ether00"))
918 return -EBUSY;
919
920 dev = alloc_etherdev(sizeof(struct net_priv));
921 if(!dev) {
922 result = -ENOMEM;
923 goto out_release;
924 }
925 priv = dev->priv;
926
927 priv->tq_memupdate.routine=ether00_mem_update;
928 priv->tq_memupdate.data=(void*) dev;
929
930 spin_lock_init(&priv->rx_lock);
931
932 map_addr=ioremap_nocache(dev_info->base_addr,SZ_4K);
933 if(!map_addr){
934 result = -ENOMEM;
935 out_kfree;
936 }
937
938 dev->open=ether00_open;
939 dev->stop=ether00_stop;
940 dev->set_multicast_list=ether00_set_multicast;
941 dev->hard_start_xmit=ether00_tx;
942 dev->get_stats=ether00_stats;
943
944 ether00_get_ethernet_address(dev);
945
946 SET_MODULE_OWNER(dev);
947
948 dev->base_addr=(unsigned int)map_addr;
949 dev->irq=dev_info->irq;
950 dev->features=NETIF_F_DYNALLOC | NETIF_F_HW_CSUM;
951
952 result=register_netdev(dev);
953 if(result){
954 printk("Ether00: Error %i registering driver\n",result);
955 goto out_unmap;
956 }
957 printk("registered ether00 device at %#x\n",dev_info->base_addr);
958
959 dev_list[i]=dev;
960
961 return result;
962
963 out_unmap:
964 iounmap(map_addr);
965 out_kfree:
966 free_netdev(dev);
967 out_release:
968 release_mem_region(dev_info->base_addr, MAC_REG_SIZE);
969 return result;
970}
971
972
973static int ether00_remove_devices(void)
974{
975 int i;
976
977 for(i=0;i<ETH_NR;i++){
978 if(dev_list[i]){
979 netif_device_detach(dev_list[i]);
980 unregister_netdev(dev_list[i]);
981 iounmap((void*)dev_list[i]->base_addr);
982 release_mem_region(dev_list[i]->base_addr, MAC_REG_SIZE);
983 free_netdev(dev_list[i]);
984 dev_list[i]=0;
985 }
986 }
987 return 0;
988}
989
990static struct pld_hotswap_ops ether00_pldhs_ops={
991 .name = ETHER00_NAME,
992 .add_device = ether00_add_device,
993 .remove_devices = ether00_remove_devices,
994};
995
996
997static void __exit ether00_cleanup_module(void)
998{
999 int result;
1000 result=ether00_remove_devices();
1001 if(result)
1002 printk(KERN_WARNING "ether00: failed to remove all devices\n");
1003
1004 pldhs_unregister_driver(ETHER00_NAME);
1005}
1006module_exit(ether00_cleanup_module);
1007
1008
1009static int __init ether00_mod_init(void)
1010{
1011 printk("mod init\n");
1012 return pldhs_register_driver(&ether00_pldhs_ops);
1013
1014}
1015
1016module_init(ether00_mod_init);
1017
diff --git a/drivers/net/arm/ether1.c b/drivers/net/arm/ether1.c
new file mode 100644
index 000000000000..36475eb2727f
--- /dev/null
+++ b/drivers/net/arm/ether1.c
@@ -0,0 +1,1110 @@
1/*
2 * linux/drivers/acorn/net/ether1.c
3 *
4 * Copyright (C) 1996-2000 Russell King
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 *
10 * Acorn ether1 driver (82586 chip) for Acorn machines
11 *
12 * We basically keep two queues in the cards memory - one for transmit
13 * and one for receive. Each has a head and a tail. The head is where
14 * we/the chip adds packets to be transmitted/received, and the tail
15 * is where the transmitter has got to/where the receiver will stop.
16 * Both of these queues are circular, and since the chip is running
17 * all the time, we have to be careful when we modify the pointers etc
18 * so that the buffer memory contents is valid all the time.
19 *
20 * Change log:
21 * 1.00 RMK Released
22 * 1.01 RMK 19/03/1996 Transfers the last odd byte onto/off of the card now.
23 * 1.02 RMK 25/05/1997 Added code to restart RU if it goes not ready
24 * 1.03 RMK 14/09/1997 Cleaned up the handling of a reset during the TX interrupt.
25 * Should prevent lockup.
26 * 1.04 RMK 17/09/1997 Added more info when initialsation of chip goes wrong.
27 * TDR now only reports failure when chip reports non-zero
28 * TDR time-distance.
29 * 1.05 RMK 31/12/1997 Removed calls to dev_tint for 2.1
30 * 1.06 RMK 10/02/2000 Updated for 2.3.43
31 * 1.07 RMK 13/05/2000 Updated for 2.3.99-pre8
32 */
33
34#include <linux/module.h>
35#include <linux/kernel.h>
36#include <linux/sched.h>
37#include <linux/types.h>
38#include <linux/fcntl.h>
39#include <linux/interrupt.h>
40#include <linux/ptrace.h>
41#include <linux/ioport.h>
42#include <linux/in.h>
43#include <linux/slab.h>
44#include <linux/string.h>
45#include <linux/errno.h>
46#include <linux/device.h>
47#include <linux/init.h>
48#include <linux/netdevice.h>
49#include <linux/etherdevice.h>
50#include <linux/skbuff.h>
51#include <linux/bitops.h>
52
53#include <asm/system.h>
54#include <asm/io.h>
55#include <asm/dma.h>
56#include <asm/ecard.h>
57
58#define __ETHER1_C
59#include "ether1.h"
60
61static unsigned int net_debug = NET_DEBUG;
62
63#define BUFFER_SIZE 0x10000
64#define TX_AREA_START 0x00100
65#define TX_AREA_END 0x05000
66#define RX_AREA_START 0x05000
67#define RX_AREA_END 0x0fc00
68
69static int ether1_open(struct net_device *dev);
70static int ether1_sendpacket(struct sk_buff *skb, struct net_device *dev);
71static irqreturn_t ether1_interrupt(int irq, void *dev_id, struct pt_regs *regs);
72static int ether1_close(struct net_device *dev);
73static struct net_device_stats *ether1_getstats(struct net_device *dev);
74static void ether1_setmulticastlist(struct net_device *dev);
75static void ether1_timeout(struct net_device *dev);
76
77/* ------------------------------------------------------------------------- */
78
79static char version[] __initdata = "ether1 ethernet driver (c) 2000 Russell King v1.07\n";
80
81#define BUS_16 16
82#define BUS_8 8
83
84/* ------------------------------------------------------------------------- */
85
86#define DISABLEIRQS 1
87#define NORMALIRQS 0
88
89#define ether1_readw(dev, addr, type, offset, svflgs) ether1_inw_p (dev, addr + (int)(&((type *)0)->offset), svflgs)
90#define ether1_writew(dev, val, addr, type, offset, svflgs) ether1_outw_p (dev, val, addr + (int)(&((type *)0)->offset), svflgs)
91
92static inline unsigned short
93ether1_inw_p (struct net_device *dev, int addr, int svflgs)
94{
95 unsigned long flags;
96 unsigned short ret;
97
98 if (svflgs)
99 local_irq_save (flags);
100
101 writeb(addr >> 12, REG_PAGE);
102 ret = readw(ETHER1_RAM + ((addr & 4095) << 1));
103 if (svflgs)
104 local_irq_restore (flags);
105 return ret;
106}
107
108static inline void
109ether1_outw_p (struct net_device *dev, unsigned short val, int addr, int svflgs)
110{
111 unsigned long flags;
112
113 if (svflgs)
114 local_irq_save (flags);
115
116 writeb(addr >> 12, REG_PAGE);
117 writew(val, ETHER1_RAM + ((addr & 4095) << 1));
118 if (svflgs)
119 local_irq_restore (flags);
120}
121
122/*
123 * Some inline assembler to allow fast transfers on to/off of the card.
124 * Since this driver depends on some features presented by the ARM
125 * specific architecture, and that you can't configure this driver
126 * without specifiing ARM mode, this is not a problem.
127 *
128 * This routine is essentially an optimised memcpy from the card's
129 * onboard RAM to kernel memory.
130 */
131static void
132ether1_writebuffer (struct net_device *dev, void *data, unsigned int start, unsigned int length)
133{
134 unsigned int page, thislen, offset;
135 void __iomem *addr;
136
137 offset = start & 4095;
138 page = start >> 12;
139 addr = ETHER1_RAM + (offset << 1);
140
141 if (offset + length > 4096)
142 thislen = 4096 - offset;
143 else
144 thislen = length;
145
146 do {
147 int used;
148
149 writeb(page, REG_PAGE);
150 length -= thislen;
151
152 __asm__ __volatile__(
153 "subs %3, %3, #2\n\
154 bmi 2f\n\
1551: ldr %0, [%1], #2\n\
156 mov %0, %0, lsl #16\n\
157 orr %0, %0, %0, lsr #16\n\
158 str %0, [%2], #4\n\
159 subs %3, %3, #2\n\
160 bmi 2f\n\
161 ldr %0, [%1], #2\n\
162 mov %0, %0, lsl #16\n\
163 orr %0, %0, %0, lsr #16\n\
164 str %0, [%2], #4\n\
165 subs %3, %3, #2\n\
166 bmi 2f\n\
167 ldr %0, [%1], #2\n\
168 mov %0, %0, lsl #16\n\
169 orr %0, %0, %0, lsr #16\n\
170 str %0, [%2], #4\n\
171 subs %3, %3, #2\n\
172 bmi 2f\n\
173 ldr %0, [%1], #2\n\
174 mov %0, %0, lsl #16\n\
175 orr %0, %0, %0, lsr #16\n\
176 str %0, [%2], #4\n\
177 subs %3, %3, #2\n\
178 bpl 1b\n\
1792: adds %3, %3, #1\n\
180 ldreqb %0, [%1]\n\
181 streqb %0, [%2]"
182 : "=&r" (used), "=&r" (data)
183 : "r" (addr), "r" (thislen), "1" (data));
184
185 addr = ETHER1_RAM;
186
187 thislen = length;
188 if (thislen > 4096)
189 thislen = 4096;
190 page++;
191 } while (thislen);
192}
193
194static void
195ether1_readbuffer (struct net_device *dev, void *data, unsigned int start, unsigned int length)
196{
197 unsigned int page, thislen, offset;
198 void __iomem *addr;
199
200 offset = start & 4095;
201 page = start >> 12;
202 addr = ETHER1_RAM + (offset << 1);
203
204 if (offset + length > 4096)
205 thislen = 4096 - offset;
206 else
207 thislen = length;
208
209 do {
210 int used;
211
212 writeb(page, REG_PAGE);
213 length -= thislen;
214
215 __asm__ __volatile__(
216 "subs %3, %3, #2\n\
217 bmi 2f\n\
2181: ldr %0, [%2], #4\n\
219 strb %0, [%1], #1\n\
220 mov %0, %0, lsr #8\n\
221 strb %0, [%1], #1\n\
222 subs %3, %3, #2\n\
223 bmi 2f\n\
224 ldr %0, [%2], #4\n\
225 strb %0, [%1], #1\n\
226 mov %0, %0, lsr #8\n\
227 strb %0, [%1], #1\n\
228 subs %3, %3, #2\n\
229 bmi 2f\n\
230 ldr %0, [%2], #4\n\
231 strb %0, [%1], #1\n\
232 mov %0, %0, lsr #8\n\
233 strb %0, [%1], #1\n\
234 subs %3, %3, #2\n\
235 bmi 2f\n\
236 ldr %0, [%2], #4\n\
237 strb %0, [%1], #1\n\
238 mov %0, %0, lsr #8\n\
239 strb %0, [%1], #1\n\
240 subs %3, %3, #2\n\
241 bpl 1b\n\
2422: adds %3, %3, #1\n\
243 ldreqb %0, [%2]\n\
244 streqb %0, [%1]"
245 : "=&r" (used), "=&r" (data)
246 : "r" (addr), "r" (thislen), "1" (data));
247
248 addr = ETHER1_RAM;
249
250 thislen = length;
251 if (thislen > 4096)
252 thislen = 4096;
253 page++;
254 } while (thislen);
255}
256
257static int __init
258ether1_ramtest(struct net_device *dev, unsigned char byte)
259{
260 unsigned char *buffer = kmalloc (BUFFER_SIZE, GFP_KERNEL);
261 int i, ret = BUFFER_SIZE;
262 int max_errors = 15;
263 int bad = -1;
264 int bad_start = 0;
265
266 if (!buffer)
267 return 1;
268
269 memset (buffer, byte, BUFFER_SIZE);
270 ether1_writebuffer (dev, buffer, 0, BUFFER_SIZE);
271 memset (buffer, byte ^ 0xff, BUFFER_SIZE);
272 ether1_readbuffer (dev, buffer, 0, BUFFER_SIZE);
273
274 for (i = 0; i < BUFFER_SIZE; i++) {
275 if (buffer[i] != byte) {
276 if (max_errors >= 0 && bad != buffer[i]) {
277 if (bad != -1)
278 printk ("\n");
279 printk (KERN_CRIT "%s: RAM failed with (%02X instead of %02X) at 0x%04X",
280 dev->name, buffer[i], byte, i);
281 ret = -ENODEV;
282 max_errors --;
283 bad = buffer[i];
284 bad_start = i;
285 }
286 } else {
287 if (bad != -1) {
288 if (bad_start == i - 1)
289 printk ("\n");
290 else
291 printk (" - 0x%04X\n", i - 1);
292 bad = -1;
293 }
294 }
295 }
296
297 if (bad != -1)
298 printk (" - 0x%04X\n", BUFFER_SIZE);
299 kfree (buffer);
300
301 return ret;
302}
303
304static int
305ether1_reset (struct net_device *dev)
306{
307 writeb(CTRL_RST|CTRL_ACK, REG_CONTROL);
308 return BUS_16;
309}
310
311static int __init
312ether1_init_2(struct net_device *dev)
313{
314 int i;
315 dev->mem_start = 0;
316
317 i = ether1_ramtest (dev, 0x5a);
318
319 if (i > 0)
320 i = ether1_ramtest (dev, 0x1e);
321
322 if (i <= 0)
323 return -ENODEV;
324
325 dev->mem_end = i;
326 return 0;
327}
328
329/*
330 * These are the structures that are loaded into the ether RAM card to
331 * initialise the 82586
332 */
333
334/* at 0x0100 */
335#define NOP_ADDR (TX_AREA_START)
336#define NOP_SIZE (0x06)
337static nop_t init_nop = {
338 0,
339 CMD_NOP,
340 NOP_ADDR
341};
342
343/* at 0x003a */
344#define TDR_ADDR (0x003a)
345#define TDR_SIZE (0x08)
346static tdr_t init_tdr = {
347 0,
348 CMD_TDR | CMD_INTR,
349 NOP_ADDR,
350 0
351};
352
353/* at 0x002e */
354#define MC_ADDR (0x002e)
355#define MC_SIZE (0x0c)
356static mc_t init_mc = {
357 0,
358 CMD_SETMULTICAST,
359 TDR_ADDR,
360 0,
361 { { 0, } }
362};
363
364/* at 0x0022 */
365#define SA_ADDR (0x0022)
366#define SA_SIZE (0x0c)
367static sa_t init_sa = {
368 0,
369 CMD_SETADDRESS,
370 MC_ADDR,
371 { 0, }
372};
373
374/* at 0x0010 */
375#define CFG_ADDR (0x0010)
376#define CFG_SIZE (0x12)
377static cfg_t init_cfg = {
378 0,
379 CMD_CONFIG,
380 SA_ADDR,
381 8,
382 8,
383 CFG8_SRDY,
384 CFG9_PREAMB8 | CFG9_ADDRLENBUF | CFG9_ADDRLEN(6),
385 0,
386 0x60,
387 0,
388 CFG13_RETRY(15) | CFG13_SLOTH(2),
389 0,
390};
391
392/* at 0x0000 */
393#define SCB_ADDR (0x0000)
394#define SCB_SIZE (0x10)
395static scb_t init_scb = {
396 0,
397 SCB_CMDACKRNR | SCB_CMDACKCNA | SCB_CMDACKFR | SCB_CMDACKCX,
398 CFG_ADDR,
399 RX_AREA_START,
400 0,
401 0,
402 0,
403 0
404};
405
406/* at 0xffee */
407#define ISCP_ADDR (0xffee)
408#define ISCP_SIZE (0x08)
409static iscp_t init_iscp = {
410 1,
411 SCB_ADDR,
412 0x0000,
413 0x0000
414};
415
416/* at 0xfff6 */
417#define SCP_ADDR (0xfff6)
418#define SCP_SIZE (0x0a)
419static scp_t init_scp = {
420 SCP_SY_16BBUS,
421 { 0, 0 },
422 ISCP_ADDR,
423 0
424};
425
426#define RFD_SIZE (0x16)
427static rfd_t init_rfd = {
428 0,
429 0,
430 0,
431 0,
432 { 0, },
433 { 0, },
434 0
435};
436
437#define RBD_SIZE (0x0a)
438static rbd_t init_rbd = {
439 0,
440 0,
441 0,
442 0,
443 ETH_FRAME_LEN + 8
444};
445
446#define TX_SIZE (0x08)
447#define TBD_SIZE (0x08)
448
449static int
450ether1_init_for_open (struct net_device *dev)
451{
452 int i, status, addr, next, next2;
453 int failures = 0;
454 unsigned long timeout;
455
456 writeb(CTRL_RST|CTRL_ACK, REG_CONTROL);
457
458 for (i = 0; i < 6; i++)
459 init_sa.sa_addr[i] = dev->dev_addr[i];
460
461 /* load data structures into ether1 RAM */
462 ether1_writebuffer (dev, &init_scp, SCP_ADDR, SCP_SIZE);
463 ether1_writebuffer (dev, &init_iscp, ISCP_ADDR, ISCP_SIZE);
464 ether1_writebuffer (dev, &init_scb, SCB_ADDR, SCB_SIZE);
465 ether1_writebuffer (dev, &init_cfg, CFG_ADDR, CFG_SIZE);
466 ether1_writebuffer (dev, &init_sa, SA_ADDR, SA_SIZE);
467 ether1_writebuffer (dev, &init_mc, MC_ADDR, MC_SIZE);
468 ether1_writebuffer (dev, &init_tdr, TDR_ADDR, TDR_SIZE);
469 ether1_writebuffer (dev, &init_nop, NOP_ADDR, NOP_SIZE);
470
471 if (ether1_readw(dev, CFG_ADDR, cfg_t, cfg_command, NORMALIRQS) != CMD_CONFIG) {
472 printk (KERN_ERR "%s: detected either RAM fault or compiler bug\n",
473 dev->name);
474 return 1;
475 }
476
477 /*
478 * setup circularly linked list of { rfd, rbd, buffer }, with
479 * all rfds circularly linked, rbds circularly linked.
480 * First rfd is linked to scp, first rbd is linked to first
481 * rfd. Last rbd has a suspend command.
482 */
483 addr = RX_AREA_START;
484 do {
485 next = addr + RFD_SIZE + RBD_SIZE + ETH_FRAME_LEN + 10;
486 next2 = next + RFD_SIZE + RBD_SIZE + ETH_FRAME_LEN + 10;
487
488 if (next2 >= RX_AREA_END) {
489 next = RX_AREA_START;
490 init_rfd.rfd_command = RFD_CMDEL | RFD_CMDSUSPEND;
491 priv(dev)->rx_tail = addr;
492 } else
493 init_rfd.rfd_command = 0;
494 if (addr == RX_AREA_START)
495 init_rfd.rfd_rbdoffset = addr + RFD_SIZE;
496 else
497 init_rfd.rfd_rbdoffset = 0;
498 init_rfd.rfd_link = next;
499 init_rbd.rbd_link = next + RFD_SIZE;
500 init_rbd.rbd_bufl = addr + RFD_SIZE + RBD_SIZE;
501
502 ether1_writebuffer (dev, &init_rfd, addr, RFD_SIZE);
503 ether1_writebuffer (dev, &init_rbd, addr + RFD_SIZE, RBD_SIZE);
504 addr = next;
505 } while (next2 < RX_AREA_END);
506
507 priv(dev)->tx_link = NOP_ADDR;
508 priv(dev)->tx_head = NOP_ADDR + NOP_SIZE;
509 priv(dev)->tx_tail = TDR_ADDR;
510 priv(dev)->rx_head = RX_AREA_START;
511
512 /* release reset & give 586 a prod */
513 priv(dev)->resetting = 1;
514 priv(dev)->initialising = 1;
515 writeb(CTRL_RST, REG_CONTROL);
516 writeb(0, REG_CONTROL);
517 writeb(CTRL_CA, REG_CONTROL);
518
519 /* 586 should now unset iscp.busy */
520 timeout = jiffies + HZ/2;
521 while (ether1_readw(dev, ISCP_ADDR, iscp_t, iscp_busy, DISABLEIRQS) == 1) {
522 if (time_after(jiffies, timeout)) {
523 printk (KERN_WARNING "%s: can't initialise 82586: iscp is busy\n", dev->name);
524 return 1;
525 }
526 }
527
528 /* check status of commands that we issued */
529 timeout += HZ/10;
530 while (((status = ether1_readw(dev, CFG_ADDR, cfg_t, cfg_status, DISABLEIRQS))
531 & STAT_COMPLETE) == 0) {
532 if (time_after(jiffies, timeout))
533 break;
534 }
535
536 if ((status & (STAT_COMPLETE | STAT_OK)) != (STAT_COMPLETE | STAT_OK)) {
537 printk (KERN_WARNING "%s: can't initialise 82586: config status %04X\n", dev->name, status);
538 printk (KERN_DEBUG "%s: SCB=[STS=%04X CMD=%04X CBL=%04X RFA=%04X]\n", dev->name,
539 ether1_readw(dev, SCB_ADDR, scb_t, scb_status, NORMALIRQS),
540 ether1_readw(dev, SCB_ADDR, scb_t, scb_command, NORMALIRQS),
541 ether1_readw(dev, SCB_ADDR, scb_t, scb_cbl_offset, NORMALIRQS),
542 ether1_readw(dev, SCB_ADDR, scb_t, scb_rfa_offset, NORMALIRQS));
543 failures += 1;
544 }
545
546 timeout += HZ/10;
547 while (((status = ether1_readw(dev, SA_ADDR, sa_t, sa_status, DISABLEIRQS))
548 & STAT_COMPLETE) == 0) {
549 if (time_after(jiffies, timeout))
550 break;
551 }
552
553 if ((status & (STAT_COMPLETE | STAT_OK)) != (STAT_COMPLETE | STAT_OK)) {
554 printk (KERN_WARNING "%s: can't initialise 82586: set address status %04X\n", dev->name, status);
555 printk (KERN_DEBUG "%s: SCB=[STS=%04X CMD=%04X CBL=%04X RFA=%04X]\n", dev->name,
556 ether1_readw(dev, SCB_ADDR, scb_t, scb_status, NORMALIRQS),
557 ether1_readw(dev, SCB_ADDR, scb_t, scb_command, NORMALIRQS),
558 ether1_readw(dev, SCB_ADDR, scb_t, scb_cbl_offset, NORMALIRQS),
559 ether1_readw(dev, SCB_ADDR, scb_t, scb_rfa_offset, NORMALIRQS));
560 failures += 1;
561 }
562
563 timeout += HZ/10;
564 while (((status = ether1_readw(dev, MC_ADDR, mc_t, mc_status, DISABLEIRQS))
565 & STAT_COMPLETE) == 0) {
566 if (time_after(jiffies, timeout))
567 break;
568 }
569
570 if ((status & (STAT_COMPLETE | STAT_OK)) != (STAT_COMPLETE | STAT_OK)) {
571 printk (KERN_WARNING "%s: can't initialise 82586: set multicast status %04X\n", dev->name, status);
572 printk (KERN_DEBUG "%s: SCB=[STS=%04X CMD=%04X CBL=%04X RFA=%04X]\n", dev->name,
573 ether1_readw(dev, SCB_ADDR, scb_t, scb_status, NORMALIRQS),
574 ether1_readw(dev, SCB_ADDR, scb_t, scb_command, NORMALIRQS),
575 ether1_readw(dev, SCB_ADDR, scb_t, scb_cbl_offset, NORMALIRQS),
576 ether1_readw(dev, SCB_ADDR, scb_t, scb_rfa_offset, NORMALIRQS));
577 failures += 1;
578 }
579
580 timeout += HZ;
581 while (((status = ether1_readw(dev, TDR_ADDR, tdr_t, tdr_status, DISABLEIRQS))
582 & STAT_COMPLETE) == 0) {
583 if (time_after(jiffies, timeout))
584 break;
585 }
586
587 if ((status & (STAT_COMPLETE | STAT_OK)) != (STAT_COMPLETE | STAT_OK)) {
588 printk (KERN_WARNING "%s: can't tdr (ignored)\n", dev->name);
589 printk (KERN_DEBUG "%s: SCB=[STS=%04X CMD=%04X CBL=%04X RFA=%04X]\n", dev->name,
590 ether1_readw(dev, SCB_ADDR, scb_t, scb_status, NORMALIRQS),
591 ether1_readw(dev, SCB_ADDR, scb_t, scb_command, NORMALIRQS),
592 ether1_readw(dev, SCB_ADDR, scb_t, scb_cbl_offset, NORMALIRQS),
593 ether1_readw(dev, SCB_ADDR, scb_t, scb_rfa_offset, NORMALIRQS));
594 } else {
595 status = ether1_readw(dev, TDR_ADDR, tdr_t, tdr_result, DISABLEIRQS);
596 if (status & TDR_XCVRPROB)
597 printk (KERN_WARNING "%s: i/f failed tdr: transceiver problem\n", dev->name);
598 else if ((status & (TDR_SHORT|TDR_OPEN)) && (status & TDR_TIME)) {
599#ifdef FANCY
600 printk (KERN_WARNING "%s: i/f failed tdr: cable %s %d.%d us away\n", dev->name,
601 status & TDR_SHORT ? "short" : "open", (status & TDR_TIME) / 10,
602 (status & TDR_TIME) % 10);
603#else
604 printk (KERN_WARNING "%s: i/f failed tdr: cable %s %d clks away\n", dev->name,
605 status & TDR_SHORT ? "short" : "open", (status & TDR_TIME));
606#endif
607 }
608 }
609
610 if (failures)
611 ether1_reset (dev);
612 return failures ? 1 : 0;
613}
614
615/* ------------------------------------------------------------------------- */
616
617static int
618ether1_txalloc (struct net_device *dev, int size)
619{
620 int start, tail;
621
622 size = (size + 1) & ~1;
623 tail = priv(dev)->tx_tail;
624
625 if (priv(dev)->tx_head + size > TX_AREA_END) {
626 if (tail > priv(dev)->tx_head)
627 return -1;
628 start = TX_AREA_START;
629 if (start + size > tail)
630 return -1;
631 priv(dev)->tx_head = start + size;
632 } else {
633 if (priv(dev)->tx_head < tail && (priv(dev)->tx_head + size) > tail)
634 return -1;
635 start = priv(dev)->tx_head;
636 priv(dev)->tx_head += size;
637 }
638
639 return start;
640}
641
642static int
643ether1_open (struct net_device *dev)
644{
645 if (!is_valid_ether_addr(dev->dev_addr)) {
646 printk(KERN_WARNING "%s: invalid ethernet MAC address\n",
647 dev->name);
648 return -EINVAL;
649 }
650
651 if (request_irq(dev->irq, ether1_interrupt, 0, "ether1", dev))
652 return -EAGAIN;
653
654 memset (&priv(dev)->stats, 0, sizeof (struct net_device_stats));
655
656 if (ether1_init_for_open (dev)) {
657 free_irq (dev->irq, dev);
658 return -EAGAIN;
659 }
660
661 netif_start_queue(dev);
662
663 return 0;
664}
665
666static void
667ether1_timeout(struct net_device *dev)
668{
669 printk(KERN_WARNING "%s: transmit timeout, network cable problem?\n",
670 dev->name);
671 printk(KERN_WARNING "%s: resetting device\n", dev->name);
672
673 ether1_reset (dev);
674
675 if (ether1_init_for_open (dev))
676 printk (KERN_ERR "%s: unable to restart interface\n", dev->name);
677
678 priv(dev)->stats.tx_errors++;
679 netif_wake_queue(dev);
680}
681
682static int
683ether1_sendpacket (struct sk_buff *skb, struct net_device *dev)
684{
685 int tmp, tst, nopaddr, txaddr, tbdaddr, dataddr;
686 unsigned long flags;
687 tx_t tx;
688 tbd_t tbd;
689 nop_t nop;
690
691 if (priv(dev)->restart) {
692 printk(KERN_WARNING "%s: resetting device\n", dev->name);
693
694 ether1_reset(dev);
695
696 if (ether1_init_for_open(dev))
697 printk(KERN_ERR "%s: unable to restart interface\n", dev->name);
698 else
699 priv(dev)->restart = 0;
700 }
701
702 if (skb->len < ETH_ZLEN) {
703 skb = skb_padto(skb, ETH_ZLEN);
704 if (skb == NULL)
705 goto out;
706 }
707
708 /*
709 * insert packet followed by a nop
710 */
711 txaddr = ether1_txalloc (dev, TX_SIZE);
712 tbdaddr = ether1_txalloc (dev, TBD_SIZE);
713 dataddr = ether1_txalloc (dev, skb->len);
714 nopaddr = ether1_txalloc (dev, NOP_SIZE);
715
716 tx.tx_status = 0;
717 tx.tx_command = CMD_TX | CMD_INTR;
718 tx.tx_link = nopaddr;
719 tx.tx_tbdoffset = tbdaddr;
720 tbd.tbd_opts = TBD_EOL | skb->len;
721 tbd.tbd_link = I82586_NULL;
722 tbd.tbd_bufl = dataddr;
723 tbd.tbd_bufh = 0;
724 nop.nop_status = 0;
725 nop.nop_command = CMD_NOP;
726 nop.nop_link = nopaddr;
727
728 local_irq_save(flags);
729 ether1_writebuffer (dev, &tx, txaddr, TX_SIZE);
730 ether1_writebuffer (dev, &tbd, tbdaddr, TBD_SIZE);
731 ether1_writebuffer (dev, skb->data, dataddr, skb->len);
732 ether1_writebuffer (dev, &nop, nopaddr, NOP_SIZE);
733 tmp = priv(dev)->tx_link;
734 priv(dev)->tx_link = nopaddr;
735
736 /* now reset the previous nop pointer */
737 ether1_writew(dev, txaddr, tmp, nop_t, nop_link, NORMALIRQS);
738
739 local_irq_restore(flags);
740
741 /* handle transmit */
742 dev->trans_start = jiffies;
743
744 /* check to see if we have room for a full sized ether frame */
745 tmp = priv(dev)->tx_head;
746 tst = ether1_txalloc (dev, TX_SIZE + TBD_SIZE + NOP_SIZE + ETH_FRAME_LEN);
747 priv(dev)->tx_head = tmp;
748 dev_kfree_skb (skb);
749
750 if (tst == -1)
751 netif_stop_queue(dev);
752
753 out:
754 return 0;
755}
756
757static void
758ether1_xmit_done (struct net_device *dev)
759{
760 nop_t nop;
761 int caddr, tst;
762
763 caddr = priv(dev)->tx_tail;
764
765again:
766 ether1_readbuffer (dev, &nop, caddr, NOP_SIZE);
767
768 switch (nop.nop_command & CMD_MASK) {
769 case CMD_TDR:
770 /* special case */
771 if (ether1_readw(dev, SCB_ADDR, scb_t, scb_cbl_offset, NORMALIRQS)
772 != (unsigned short)I82586_NULL) {
773 ether1_writew(dev, SCB_CMDCUCSTART | SCB_CMDRXSTART, SCB_ADDR, scb_t,
774 scb_command, NORMALIRQS);
775 writeb(CTRL_CA, REG_CONTROL);
776 }
777 priv(dev)->tx_tail = NOP_ADDR;
778 return;
779
780 case CMD_NOP:
781 if (nop.nop_link == caddr) {
782 if (priv(dev)->initialising == 0)
783 printk (KERN_WARNING "%s: strange command complete with no tx command!\n", dev->name);
784 else
785 priv(dev)->initialising = 0;
786 return;
787 }
788 if (caddr == nop.nop_link)
789 return;
790 caddr = nop.nop_link;
791 goto again;
792
793 case CMD_TX:
794 if (nop.nop_status & STAT_COMPLETE)
795 break;
796 printk (KERN_ERR "%s: strange command complete without completed command\n", dev->name);
797 priv(dev)->restart = 1;
798 return;
799
800 default:
801 printk (KERN_WARNING "%s: strange command %d complete! (offset %04X)", dev->name,
802 nop.nop_command & CMD_MASK, caddr);
803 priv(dev)->restart = 1;
804 return;
805 }
806
807 while (nop.nop_status & STAT_COMPLETE) {
808 if (nop.nop_status & STAT_OK) {
809 priv(dev)->stats.tx_packets ++;
810 priv(dev)->stats.collisions += (nop.nop_status & STAT_COLLISIONS);
811 } else {
812 priv(dev)->stats.tx_errors ++;
813
814 if (nop.nop_status & STAT_COLLAFTERTX)
815 priv(dev)->stats.collisions ++;
816 if (nop.nop_status & STAT_NOCARRIER)
817 priv(dev)->stats.tx_carrier_errors ++;
818 if (nop.nop_status & STAT_TXLOSTCTS)
819 printk (KERN_WARNING "%s: cts lost\n", dev->name);
820 if (nop.nop_status & STAT_TXSLOWDMA)
821 priv(dev)->stats.tx_fifo_errors ++;
822 if (nop.nop_status & STAT_COLLEXCESSIVE)
823 priv(dev)->stats.collisions += 16;
824 }
825
826 if (nop.nop_link == caddr) {
827 printk (KERN_ERR "%s: tx buffer chaining error: tx command points to itself\n", dev->name);
828 break;
829 }
830
831 caddr = nop.nop_link;
832 ether1_readbuffer (dev, &nop, caddr, NOP_SIZE);
833 if ((nop.nop_command & CMD_MASK) != CMD_NOP) {
834 printk (KERN_ERR "%s: tx buffer chaining error: no nop after tx command\n", dev->name);
835 break;
836 }
837
838 if (caddr == nop.nop_link)
839 break;
840
841 caddr = nop.nop_link;
842 ether1_readbuffer (dev, &nop, caddr, NOP_SIZE);
843 if ((nop.nop_command & CMD_MASK) != CMD_TX) {
844 printk (KERN_ERR "%s: tx buffer chaining error: no tx command after nop\n", dev->name);
845 break;
846 }
847 }
848 priv(dev)->tx_tail = caddr;
849
850 caddr = priv(dev)->tx_head;
851 tst = ether1_txalloc (dev, TX_SIZE + TBD_SIZE + NOP_SIZE + ETH_FRAME_LEN);
852 priv(dev)->tx_head = caddr;
853 if (tst != -1)
854 netif_wake_queue(dev);
855}
856
857static void
858ether1_recv_done (struct net_device *dev)
859{
860 int status;
861 int nexttail, rbdaddr;
862 rbd_t rbd;
863
864 do {
865 status = ether1_readw(dev, priv(dev)->rx_head, rfd_t, rfd_status, NORMALIRQS);
866 if ((status & RFD_COMPLETE) == 0)
867 break;
868
869 rbdaddr = ether1_readw(dev, priv(dev)->rx_head, rfd_t, rfd_rbdoffset, NORMALIRQS);
870 ether1_readbuffer (dev, &rbd, rbdaddr, RBD_SIZE);
871
872 if ((rbd.rbd_status & (RBD_EOF | RBD_ACNTVALID)) == (RBD_EOF | RBD_ACNTVALID)) {
873 int length = rbd.rbd_status & RBD_ACNT;
874 struct sk_buff *skb;
875
876 length = (length + 1) & ~1;
877 skb = dev_alloc_skb (length + 2);
878
879 if (skb) {
880 skb->dev = dev;
881 skb_reserve (skb, 2);
882
883 ether1_readbuffer (dev, skb_put (skb, length), rbd.rbd_bufl, length);
884
885 skb->protocol = eth_type_trans (skb, dev);
886 netif_rx (skb);
887 priv(dev)->stats.rx_packets ++;
888 } else
889 priv(dev)->stats.rx_dropped ++;
890 } else {
891 printk(KERN_WARNING "%s: %s\n", dev->name,
892 (rbd.rbd_status & RBD_EOF) ? "oversized packet" : "acnt not valid");
893 priv(dev)->stats.rx_dropped ++;
894 }
895
896 nexttail = ether1_readw(dev, priv(dev)->rx_tail, rfd_t, rfd_link, NORMALIRQS);
897 /* nexttail should be rx_head */
898 if (nexttail != priv(dev)->rx_head)
899 printk(KERN_ERR "%s: receiver buffer chaining error (%04X != %04X)\n",
900 dev->name, nexttail, priv(dev)->rx_head);
901 ether1_writew(dev, RFD_CMDEL | RFD_CMDSUSPEND, nexttail, rfd_t, rfd_command, NORMALIRQS);
902 ether1_writew(dev, 0, priv(dev)->rx_tail, rfd_t, rfd_command, NORMALIRQS);
903 ether1_writew(dev, 0, priv(dev)->rx_tail, rfd_t, rfd_status, NORMALIRQS);
904 ether1_writew(dev, 0, priv(dev)->rx_tail, rfd_t, rfd_rbdoffset, NORMALIRQS);
905
906 priv(dev)->rx_tail = nexttail;
907 priv(dev)->rx_head = ether1_readw(dev, priv(dev)->rx_head, rfd_t, rfd_link, NORMALIRQS);
908 } while (1);
909}
910
911static irqreturn_t
912ether1_interrupt (int irq, void *dev_id, struct pt_regs *regs)
913{
914 struct net_device *dev = (struct net_device *)dev_id;
915 int status;
916
917 status = ether1_readw(dev, SCB_ADDR, scb_t, scb_status, NORMALIRQS);
918
919 if (status) {
920 ether1_writew(dev, status & (SCB_STRNR | SCB_STCNA | SCB_STFR | SCB_STCX),
921 SCB_ADDR, scb_t, scb_command, NORMALIRQS);
922 writeb(CTRL_CA | CTRL_ACK, REG_CONTROL);
923 if (status & SCB_STCX) {
924 ether1_xmit_done (dev);
925 }
926 if (status & SCB_STCNA) {
927 if (priv(dev)->resetting == 0)
928 printk (KERN_WARNING "%s: CU went not ready ???\n", dev->name);
929 else
930 priv(dev)->resetting += 1;
931 if (ether1_readw(dev, SCB_ADDR, scb_t, scb_cbl_offset, NORMALIRQS)
932 != (unsigned short)I82586_NULL) {
933 ether1_writew(dev, SCB_CMDCUCSTART, SCB_ADDR, scb_t, scb_command, NORMALIRQS);
934 writeb(CTRL_CA, REG_CONTROL);
935 }
936 if (priv(dev)->resetting == 2)
937 priv(dev)->resetting = 0;
938 }
939 if (status & SCB_STFR) {
940 ether1_recv_done (dev);
941 }
942 if (status & SCB_STRNR) {
943 if (ether1_readw(dev, SCB_ADDR, scb_t, scb_status, NORMALIRQS) & SCB_STRXSUSP) {
944 printk (KERN_WARNING "%s: RU went not ready: RU suspended\n", dev->name);
945 ether1_writew(dev, SCB_CMDRXRESUME, SCB_ADDR, scb_t, scb_command, NORMALIRQS);
946 writeb(CTRL_CA, REG_CONTROL);
947 priv(dev)->stats.rx_dropped ++; /* we suspended due to lack of buffer space */
948 } else
949 printk(KERN_WARNING "%s: RU went not ready: %04X\n", dev->name,
950 ether1_readw(dev, SCB_ADDR, scb_t, scb_status, NORMALIRQS));
951 printk (KERN_WARNING "RU ptr = %04X\n", ether1_readw(dev, SCB_ADDR, scb_t, scb_rfa_offset,
952 NORMALIRQS));
953 }
954 } else
955 writeb(CTRL_ACK, REG_CONTROL);
956
957 return IRQ_HANDLED;
958}
959
960static int
961ether1_close (struct net_device *dev)
962{
963 ether1_reset (dev);
964
965 free_irq(dev->irq, dev);
966
967 return 0;
968}
969
970static struct net_device_stats *
971ether1_getstats (struct net_device *dev)
972{
973 return &priv(dev)->stats;
974}
975
976/*
977 * Set or clear the multicast filter for this adaptor.
978 * num_addrs == -1 Promiscuous mode, receive all packets.
979 * num_addrs == 0 Normal mode, clear multicast list.
980 * num_addrs > 0 Multicast mode, receive normal and MC packets, and do
981 * best-effort filtering.
982 */
983static void
984ether1_setmulticastlist (struct net_device *dev)
985{
986}
987
988/* ------------------------------------------------------------------------- */
989
990static void __init ether1_banner(void)
991{
992 static unsigned int version_printed = 0;
993
994 if (net_debug && version_printed++ == 0)
995 printk(KERN_INFO "%s", version);
996}
997
998static int __devinit
999ether1_probe(struct expansion_card *ec, const struct ecard_id *id)
1000{
1001 struct net_device *dev;
1002 int i, ret = 0;
1003
1004 ether1_banner();
1005
1006 ret = ecard_request_resources(ec);
1007 if (ret)
1008 goto out;
1009
1010 dev = alloc_etherdev(sizeof(struct ether1_priv));
1011 if (!dev) {
1012 ret = -ENOMEM;
1013 goto release;
1014 }
1015
1016 SET_MODULE_OWNER(dev);
1017 SET_NETDEV_DEV(dev, &ec->dev);
1018
1019 dev->irq = ec->irq;
1020 priv(dev)->base = ioremap(ecard_resource_start(ec, ECARD_RES_IOCFAST),
1021 ecard_resource_len(ec, ECARD_RES_IOCFAST));
1022 if (!priv(dev)->base) {
1023 ret = -ENOMEM;
1024 goto free;
1025 }
1026
1027 if ((priv(dev)->bus_type = ether1_reset(dev)) == 0) {
1028 ret = -ENODEV;
1029 goto free;
1030 }
1031
1032 for (i = 0; i < 6; i++)
1033 dev->dev_addr[i] = readb(IDPROM_ADDRESS + (i << 2));
1034
1035 if (ether1_init_2(dev)) {
1036 ret = -ENODEV;
1037 goto free;
1038 }
1039
1040 dev->open = ether1_open;
1041 dev->stop = ether1_close;
1042 dev->hard_start_xmit = ether1_sendpacket;
1043 dev->get_stats = ether1_getstats;
1044 dev->set_multicast_list = ether1_setmulticastlist;
1045 dev->tx_timeout = ether1_timeout;
1046 dev->watchdog_timeo = 5 * HZ / 100;
1047
1048 ret = register_netdev(dev);
1049 if (ret)
1050 goto free;
1051
1052 printk(KERN_INFO "%s: ether1 in slot %d, ",
1053 dev->name, ec->slot_no);
1054
1055 for (i = 0; i < 6; i++)
1056 printk ("%2.2x%c", dev->dev_addr[i], i == 5 ? '\n' : ':');
1057
1058 ecard_set_drvdata(ec, dev);
1059 return 0;
1060
1061 free:
1062 if (priv(dev)->base)
1063 iounmap(priv(dev)->base);
1064 free_netdev(dev);
1065 release:
1066 ecard_release_resources(ec);
1067 out:
1068 return ret;
1069}
1070
1071static void __devexit ether1_remove(struct expansion_card *ec)
1072{
1073 struct net_device *dev = ecard_get_drvdata(ec);
1074
1075 ecard_set_drvdata(ec, NULL);
1076
1077 unregister_netdev(dev);
1078 iounmap(priv(dev)->base);
1079 free_netdev(dev);
1080 ecard_release_resources(ec);
1081}
1082
1083static const struct ecard_id ether1_ids[] = {
1084 { MANU_ACORN, PROD_ACORN_ETHER1 },
1085 { 0xffff, 0xffff }
1086};
1087
1088static struct ecard_driver ether1_driver = {
1089 .probe = ether1_probe,
1090 .remove = __devexit_p(ether1_remove),
1091 .id_table = ether1_ids,
1092 .drv = {
1093 .name = "ether1",
1094 },
1095};
1096
1097static int __init ether1_init(void)
1098{
1099 return ecard_register_driver(&ether1_driver);
1100}
1101
1102static void __exit ether1_exit(void)
1103{
1104 ecard_remove_driver(&ether1_driver);
1105}
1106
1107module_init(ether1_init);
1108module_exit(ether1_exit);
1109
1110MODULE_LICENSE("GPL");
diff --git a/drivers/net/arm/ether1.h b/drivers/net/arm/ether1.h
new file mode 100644
index 000000000000..c8a4b2389d85
--- /dev/null
+++ b/drivers/net/arm/ether1.h
@@ -0,0 +1,281 @@
1/*
2 * linux/drivers/acorn/net/ether1.h
3 *
4 * Copyright (C) 1996 Russell King
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 *
10 * Network driver for Acorn Ether1 cards.
11 */
12
13#ifndef _LINUX_ether1_H
14#define _LINUX_ether1_H
15
16#ifdef __ETHER1_C
17/* use 0 for production, 1 for verification, >2 for debug */
18#ifndef NET_DEBUG
19#define NET_DEBUG 0
20#endif
21
22#define priv(dev) ((struct ether1_priv *)netdev_priv(dev))
23
24/* Page register */
25#define REG_PAGE (priv(dev)->base + 0x0000)
26
27/* Control register */
28#define REG_CONTROL (priv(dev)->base + 0x0004)
29#define CTRL_RST 0x01
30#define CTRL_LOOPBACK 0x02
31#define CTRL_CA 0x04
32#define CTRL_ACK 0x08
33
34#define ETHER1_RAM (priv(dev)->base + 0x2000)
35
36/* HW address */
37#define IDPROM_ADDRESS (priv(dev)->base + 0x0024)
38
39struct ether1_priv {
40 void __iomem *base;
41 struct net_device_stats stats;
42 unsigned int tx_link;
43 unsigned int tx_head;
44 volatile unsigned int tx_tail;
45 volatile unsigned int rx_head;
46 volatile unsigned int rx_tail;
47 unsigned char bus_type;
48 unsigned char resetting;
49 unsigned char initialising : 1;
50 unsigned char restart : 1;
51};
52
53#define I82586_NULL (-1)
54
55typedef struct { /* tdr */
56 unsigned short tdr_status;
57 unsigned short tdr_command;
58 unsigned short tdr_link;
59 unsigned short tdr_result;
60#define TDR_TIME (0x7ff)
61#define TDR_SHORT (1 << 12)
62#define TDR_OPEN (1 << 13)
63#define TDR_XCVRPROB (1 << 14)
64#define TDR_LNKOK (1 << 15)
65} tdr_t;
66
67typedef struct { /* transmit */
68 unsigned short tx_status;
69 unsigned short tx_command;
70 unsigned short tx_link;
71 unsigned short tx_tbdoffset;
72} tx_t;
73
74typedef struct { /* tbd */
75 unsigned short tbd_opts;
76#define TBD_CNT (0x3fff)
77#define TBD_EOL (1 << 15)
78 unsigned short tbd_link;
79 unsigned short tbd_bufl;
80 unsigned short tbd_bufh;
81} tbd_t;
82
83typedef struct { /* rfd */
84 unsigned short rfd_status;
85#define RFD_NOEOF (1 << 6)
86#define RFD_FRAMESHORT (1 << 7)
87#define RFD_DMAOVRN (1 << 8)
88#define RFD_NORESOURCES (1 << 9)
89#define RFD_ALIGNERROR (1 << 10)
90#define RFD_CRCERROR (1 << 11)
91#define RFD_OK (1 << 13)
92#define RFD_FDCONSUMED (1 << 14)
93#define RFD_COMPLETE (1 << 15)
94 unsigned short rfd_command;
95#define RFD_CMDSUSPEND (1 << 14)
96#define RFD_CMDEL (1 << 15)
97 unsigned short rfd_link;
98 unsigned short rfd_rbdoffset;
99 unsigned char rfd_dest[6];
100 unsigned char rfd_src[6];
101 unsigned short rfd_len;
102} rfd_t;
103
104typedef struct { /* rbd */
105 unsigned short rbd_status;
106#define RBD_ACNT (0x3fff)
107#define RBD_ACNTVALID (1 << 14)
108#define RBD_EOF (1 << 15)
109 unsigned short rbd_link;
110 unsigned short rbd_bufl;
111 unsigned short rbd_bufh;
112 unsigned short rbd_len;
113} rbd_t;
114
115typedef struct { /* nop */
116 unsigned short nop_status;
117 unsigned short nop_command;
118 unsigned short nop_link;
119} nop_t;
120
121typedef struct { /* set multicast */
122 unsigned short mc_status;
123 unsigned short mc_command;
124 unsigned short mc_link;
125 unsigned short mc_cnt;
126 unsigned char mc_addrs[1][6];
127} mc_t;
128
129typedef struct { /* set address */
130 unsigned short sa_status;
131 unsigned short sa_command;
132 unsigned short sa_link;
133 unsigned char sa_addr[6];
134} sa_t;
135
136typedef struct { /* config command */
137 unsigned short cfg_status;
138 unsigned short cfg_command;
139 unsigned short cfg_link;
140 unsigned char cfg_bytecnt; /* size foll data: 4 - 12 */
141 unsigned char cfg_fifolim; /* FIFO threshold */
142 unsigned char cfg_byte8;
143#define CFG8_SRDY (1 << 6)
144#define CFG8_SAVEBADF (1 << 7)
145 unsigned char cfg_byte9;
146#define CFG9_ADDRLEN(x) (x)
147#define CFG9_ADDRLENBUF (1 << 3)
148#define CFG9_PREAMB2 (0 << 4)
149#define CFG9_PREAMB4 (1 << 4)
150#define CFG9_PREAMB8 (2 << 4)
151#define CFG9_PREAMB16 (3 << 4)
152#define CFG9_ILOOPBACK (1 << 6)
153#define CFG9_ELOOPBACK (1 << 7)
154 unsigned char cfg_byte10;
155#define CFG10_LINPRI(x) (x)
156#define CFG10_ACR(x) (x << 4)
157#define CFG10_BOFMET (1 << 7)
158 unsigned char cfg_ifs;
159 unsigned char cfg_slotl;
160 unsigned char cfg_byte13;
161#define CFG13_SLOTH(x) (x)
162#define CFG13_RETRY(x) (x << 4)
163 unsigned char cfg_byte14;
164#define CFG14_PROMISC (1 << 0)
165#define CFG14_DISBRD (1 << 1)
166#define CFG14_MANCH (1 << 2)
167#define CFG14_TNCRS (1 << 3)
168#define CFG14_NOCRC (1 << 4)
169#define CFG14_CRC16 (1 << 5)
170#define CFG14_BTSTF (1 << 6)
171#define CFG14_FLGPAD (1 << 7)
172 unsigned char cfg_byte15;
173#define CFG15_CSTF(x) (x)
174#define CFG15_ICSS (1 << 3)
175#define CFG15_CDTF(x) (x << 4)
176#define CFG15_ICDS (1 << 7)
177 unsigned short cfg_minfrmlen;
178} cfg_t;
179
180typedef struct { /* scb */
181 unsigned short scb_status; /* status of 82586 */
182#define SCB_STRXMASK (7 << 4) /* Receive unit status */
183#define SCB_STRXIDLE (0 << 4) /* Idle */
184#define SCB_STRXSUSP (1 << 4) /* Suspended */
185#define SCB_STRXNRES (2 << 4) /* No resources */
186#define SCB_STRXRDY (4 << 4) /* Ready */
187#define SCB_STCUMASK (7 << 8) /* Command unit status */
188#define SCB_STCUIDLE (0 << 8) /* Idle */
189#define SCB_STCUSUSP (1 << 8) /* Suspended */
190#define SCB_STCUACTV (2 << 8) /* Active */
191#define SCB_STRNR (1 << 12) /* Receive unit not ready */
192#define SCB_STCNA (1 << 13) /* Command unit not ready */
193#define SCB_STFR (1 << 14) /* Frame received */
194#define SCB_STCX (1 << 15) /* Command completed */
195 unsigned short scb_command; /* Next command */
196#define SCB_CMDRXSTART (1 << 4) /* Start (at rfa_offset) */
197#define SCB_CMDRXRESUME (2 << 4) /* Resume reception */
198#define SCB_CMDRXSUSPEND (3 << 4) /* Suspend reception */
199#define SCB_CMDRXABORT (4 << 4) /* Abort reception */
200#define SCB_CMDCUCSTART (1 << 8) /* Start (at cbl_offset) */
201#define SCB_CMDCUCRESUME (2 << 8) /* Resume execution */
202#define SCB_CMDCUCSUSPEND (3 << 8) /* Suspend execution */
203#define SCB_CMDCUCABORT (4 << 8) /* Abort execution */
204#define SCB_CMDACKRNR (1 << 12) /* Ack RU not ready */
205#define SCB_CMDACKCNA (1 << 13) /* Ack CU not ready */
206#define SCB_CMDACKFR (1 << 14) /* Ack Frame received */
207#define SCB_CMDACKCX (1 << 15) /* Ack Command complete */
208 unsigned short scb_cbl_offset; /* Offset of first command unit */
209 unsigned short scb_rfa_offset; /* Offset of first receive frame area */
210 unsigned short scb_crc_errors; /* Properly aligned frame with CRC error*/
211 unsigned short scb_aln_errors; /* Misaligned frames */
212 unsigned short scb_rsc_errors; /* Frames lost due to no space */
213 unsigned short scb_ovn_errors; /* Frames lost due to slow bus */
214} scb_t;
215
216typedef struct { /* iscp */
217 unsigned short iscp_busy; /* set by CPU before CA */
218 unsigned short iscp_offset; /* offset of SCB */
219 unsigned short iscp_basel; /* base of SCB */
220 unsigned short iscp_baseh;
221} iscp_t;
222
223 /* this address must be 0xfff6 */
224typedef struct { /* scp */
225 unsigned short scp_sysbus; /* bus size */
226#define SCP_SY_16BBUS 0x00
227#define SCP_SY_8BBUS 0x01
228 unsigned short scp_junk[2]; /* junk */
229 unsigned short scp_iscpl; /* lower 16 bits of iscp */
230 unsigned short scp_iscph; /* upper 16 bits of iscp */
231} scp_t;
232
233/* commands */
234#define CMD_NOP 0
235#define CMD_SETADDRESS 1
236#define CMD_CONFIG 2
237#define CMD_SETMULTICAST 3
238#define CMD_TX 4
239#define CMD_TDR 5
240#define CMD_DUMP 6
241#define CMD_DIAGNOSE 7
242
243#define CMD_MASK 7
244
245#define CMD_INTR (1 << 13)
246#define CMD_SUSP (1 << 14)
247#define CMD_EOL (1 << 15)
248
249#define STAT_COLLISIONS (15)
250#define STAT_COLLEXCESSIVE (1 << 5)
251#define STAT_COLLAFTERTX (1 << 6)
252#define STAT_TXDEFERRED (1 << 7)
253#define STAT_TXSLOWDMA (1 << 8)
254#define STAT_TXLOSTCTS (1 << 9)
255#define STAT_NOCARRIER (1 << 10)
256#define STAT_FAIL (1 << 11)
257#define STAT_ABORTED (1 << 12)
258#define STAT_OK (1 << 13)
259#define STAT_BUSY (1 << 14)
260#define STAT_COMPLETE (1 << 15)
261#endif
262#endif
263
264/*
265 * Ether1 card definitions:
266 *
267 * FAST accesses:
268 * +0 Page register
269 * 16 pages
270 * +4 Control
271 * '1' = reset
272 * '2' = loopback
273 * '4' = CA
274 * '8' = int ack
275 *
276 * RAM at address + 0x2000
277 * Pod. Prod id = 3
278 * Words after ID block [base + 8 words]
279 * +0 pcb issue (0x0c and 0xf3 invalid)
280 * +1 - +6 eth hw address
281 */
diff --git a/drivers/net/arm/ether3.c b/drivers/net/arm/ether3.c
new file mode 100644
index 000000000000..1cc53abc3a39
--- /dev/null
+++ b/drivers/net/arm/ether3.c
@@ -0,0 +1,936 @@
1/*
2 * linux/drivers/acorn/net/ether3.c
3 *
4 * Copyright (C) 1995-2000 Russell King
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 *
10 * SEEQ nq8005 ethernet driver for Acorn/ANT Ether3 card
11 * for Acorn machines
12 *
13 * By Russell King, with some suggestions from borris@ant.co.uk
14 *
15 * Changelog:
16 * 1.04 RMK 29/02/1996 Won't pass packets that are from our ethernet
17 * address up to the higher levels - they're
18 * silently ignored. I/F can now be put into
19 * multicast mode. Receiver routine optimised.
20 * 1.05 RMK 30/02/1996 Now claims interrupt at open when part of
21 * the kernel rather than when a module.
22 * 1.06 RMK 02/03/1996 Various code cleanups
23 * 1.07 RMK 13/10/1996 Optimised interrupt routine and transmit
24 * routines.
25 * 1.08 RMK 14/10/1996 Fixed problem with too many packets,
26 * prevented the kernel message about dropped
27 * packets appearing too many times a second.
28 * Now does not disable all IRQs, only the IRQ
29 * used by this card.
30 * 1.09 RMK 10/11/1996 Only enables TX irq when buffer space is low,
31 * but we still service the TX queue if we get a
32 * RX interrupt.
33 * 1.10 RMK 15/07/1997 Fixed autoprobing of NQ8004.
34 * 1.11 RMK 16/11/1997 Fixed autoprobing of NQ8005A.
35 * 1.12 RMK 31/12/1997 Removed reference to dev_tint for Linux 2.1.
36 * RMK 27/06/1998 Changed asm/delay.h to linux/delay.h.
37 * 1.13 RMK 29/06/1998 Fixed problem with transmission of packets.
38 * Chip seems to have a bug in, whereby if the
39 * packet starts two bytes from the end of the
40 * buffer, it corrupts the receiver chain, and
41 * never updates the transmit status correctly.
42 * 1.14 RMK 07/01/1998 Added initial code for ETHERB addressing.
43 * 1.15 RMK 30/04/1999 More fixes to the transmit routine for buggy
44 * hardware.
45 * 1.16 RMK 10/02/2000 Updated for 2.3.43
46 * 1.17 RMK 13/05/2000 Updated for 2.3.99-pre8
47 */
48
49#include <linux/module.h>
50#include <linux/kernel.h>
51#include <linux/sched.h>
52#include <linux/types.h>
53#include <linux/fcntl.h>
54#include <linux/interrupt.h>
55#include <linux/ptrace.h>
56#include <linux/ioport.h>
57#include <linux/in.h>
58#include <linux/slab.h>
59#include <linux/string.h>
60#include <linux/errno.h>
61#include <linux/netdevice.h>
62#include <linux/etherdevice.h>
63#include <linux/skbuff.h>
64#include <linux/device.h>
65#include <linux/init.h>
66#include <linux/delay.h>
67#include <linux/bitops.h>
68
69#include <asm/system.h>
70#include <asm/ecard.h>
71#include <asm/io.h>
72#include <asm/irq.h>
73
74static char version[] __initdata = "ether3 ethernet driver (c) 1995-2000 R.M.King v1.17\n";
75
76#include "ether3.h"
77
78static unsigned int net_debug = NET_DEBUG;
79
80static void ether3_setmulticastlist(struct net_device *dev);
81static int ether3_rx(struct net_device *dev, unsigned int maxcnt);
82static void ether3_tx(struct net_device *dev);
83static int ether3_open (struct net_device *dev);
84static int ether3_sendpacket (struct sk_buff *skb, struct net_device *dev);
85static irqreturn_t ether3_interrupt (int irq, void *dev_id, struct pt_regs *regs);
86static int ether3_close (struct net_device *dev);
87static struct net_device_stats *ether3_getstats (struct net_device *dev);
88static void ether3_setmulticastlist (struct net_device *dev);
89static void ether3_timeout(struct net_device *dev);
90
91#define BUS_16 2
92#define BUS_8 1
93#define BUS_UNKNOWN 0
94
95/* --------------------------------------------------------------------------- */
96
97typedef enum {
98 buffer_write,
99 buffer_read
100} buffer_rw_t;
101
102/*
103 * ether3 read/write. Slow things down a bit...
104 * The SEEQ8005 doesn't like us writing to its registers
105 * too quickly.
106 */
107static inline void ether3_outb(int v, const void __iomem *r)
108{
109 writeb(v, r);
110 udelay(1);
111}
112
113static inline void ether3_outw(int v, const void __iomem *r)
114{
115 writew(v, r);
116 udelay(1);
117}
118#define ether3_inb(r) ({ unsigned int __v = readb((r)); udelay(1); __v; })
119#define ether3_inw(r) ({ unsigned int __v = readw((r)); udelay(1); __v; })
120
121static int
122ether3_setbuffer(struct net_device *dev, buffer_rw_t read, int start)
123{
124 int timeout = 1000;
125
126 ether3_outw(priv(dev)->regs.config1 | CFG1_LOCBUFMEM, REG_CONFIG1);
127 ether3_outw(priv(dev)->regs.command | CMD_FIFOWRITE, REG_COMMAND);
128
129 while ((ether3_inw(REG_STATUS) & STAT_FIFOEMPTY) == 0) {
130 if (!timeout--) {
131 printk("%s: setbuffer broken\n", dev->name);
132 priv(dev)->broken = 1;
133 return 1;
134 }
135 udelay(1);
136 }
137
138 if (read == buffer_read) {
139 ether3_outw(start, REG_DMAADDR);
140 ether3_outw(priv(dev)->regs.command | CMD_FIFOREAD, REG_COMMAND);
141 } else {
142 ether3_outw(priv(dev)->regs.command | CMD_FIFOWRITE, REG_COMMAND);
143 ether3_outw(start, REG_DMAADDR);
144 }
145 return 0;
146}
147
148/*
149 * write data to the buffer memory
150 */
151#define ether3_writebuffer(dev,data,length) \
152 writesw(REG_BUFWIN, (data), (length) >> 1)
153
154#define ether3_writeword(dev,data) \
155 writew((data), REG_BUFWIN)
156
157#define ether3_writelong(dev,data) { \
158 void __iomem *reg_bufwin = REG_BUFWIN; \
159 writew((data), reg_bufwin); \
160 writew((data) >> 16, reg_bufwin); \
161}
162
163/*
164 * read data from the buffer memory
165 */
166#define ether3_readbuffer(dev,data,length) \
167 readsw(REG_BUFWIN, (data), (length) >> 1)
168
169#define ether3_readword(dev) \
170 readw(REG_BUFWIN)
171
172#define ether3_readlong(dev) \
173 readw(REG_BUFWIN) | (readw(REG_BUFWIN) << 16)
174
175/*
176 * Switch LED off...
177 */
178static void ether3_ledoff(unsigned long data)
179{
180 struct net_device *dev = (struct net_device *)data;
181 ether3_outw(priv(dev)->regs.config2 |= CFG2_CTRLO, REG_CONFIG2);
182}
183
184/*
185 * switch LED on...
186 */
187static inline void ether3_ledon(struct net_device *dev)
188{
189 del_timer(&priv(dev)->timer);
190 priv(dev)->timer.expires = jiffies + HZ / 50; /* leave on for 1/50th second */
191 priv(dev)->timer.data = (unsigned long)dev;
192 priv(dev)->timer.function = ether3_ledoff;
193 add_timer(&priv(dev)->timer);
194 if (priv(dev)->regs.config2 & CFG2_CTRLO)
195 ether3_outw(priv(dev)->regs.config2 &= ~CFG2_CTRLO, REG_CONFIG2);
196}
197
198/*
199 * Read the ethernet address string from the on board rom.
200 * This is an ascii string!!!
201 */
202static int __init
203ether3_addr(char *addr, struct expansion_card *ec)
204{
205 struct in_chunk_dir cd;
206 char *s;
207
208 if (ecard_readchunk(&cd, ec, 0xf5, 0) && (s = strchr(cd.d.string, '('))) {
209 int i;
210 for (i = 0; i<6; i++) {
211 addr[i] = simple_strtoul(s + 1, &s, 0x10);
212 if (*s != (i==5?')' : ':' ))
213 break;
214 }
215 if (i == 6)
216 return 0;
217 }
218 /* I wonder if we should even let the user continue in this case
219 * - no, it would be better to disable the device
220 */
221 printk(KERN_ERR "ether3: Couldn't read a valid MAC address from card.\n");
222 return -ENODEV;
223}
224
225/* --------------------------------------------------------------------------- */
226
227static int __init
228ether3_ramtest(struct net_device *dev, unsigned char byte)
229{
230 unsigned char *buffer = kmalloc(RX_END, GFP_KERNEL);
231 int i,ret = 0;
232 int max_errors = 4;
233 int bad = -1;
234
235 if (!buffer)
236 return 1;
237
238 memset(buffer, byte, RX_END);
239 ether3_setbuffer(dev, buffer_write, 0);
240 ether3_writebuffer(dev, buffer, TX_END);
241 ether3_setbuffer(dev, buffer_write, RX_START);
242 ether3_writebuffer(dev, buffer + RX_START, RX_LEN);
243 memset(buffer, byte ^ 0xff, RX_END);
244 ether3_setbuffer(dev, buffer_read, 0);
245 ether3_readbuffer(dev, buffer, TX_END);
246 ether3_setbuffer(dev, buffer_read, RX_START);
247 ether3_readbuffer(dev, buffer + RX_START, RX_LEN);
248
249 for (i = 0; i < RX_END; i++) {
250 if (buffer[i] != byte) {
251 if (max_errors > 0 && bad != buffer[i]) {
252 printk("%s: RAM failed with (%02X instead of %02X) at 0x%04X",
253 dev->name, buffer[i], byte, i);
254 ret = 2;
255 max_errors--;
256 bad = i;
257 }
258 } else {
259 if (bad != -1) {
260 if (bad != i - 1)
261 printk(" - 0x%04X\n", i - 1);
262 printk("\n");
263 bad = -1;
264 }
265 }
266 }
267 if (bad != -1)
268 printk(" - 0xffff\n");
269 kfree(buffer);
270
271 return ret;
272}
273
274/* ------------------------------------------------------------------------------- */
275
276static int __init ether3_init_2(struct net_device *dev)
277{
278 int i;
279
280 priv(dev)->regs.config1 = CFG1_RECVCOMPSTAT0|CFG1_DMABURST8;
281 priv(dev)->regs.config2 = CFG2_CTRLO|CFG2_RECVCRC|CFG2_ERRENCRC;
282 priv(dev)->regs.command = 0;
283
284 /*
285 * Set up our hardware address
286 */
287 ether3_outw(priv(dev)->regs.config1 | CFG1_BUFSELSTAT0, REG_CONFIG1);
288 for (i = 0; i < 6; i++)
289 ether3_outb(dev->dev_addr[i], REG_BUFWIN);
290
291 if (dev->flags & IFF_PROMISC)
292 priv(dev)->regs.config1 |= CFG1_RECVPROMISC;
293 else if (dev->flags & IFF_MULTICAST)
294 priv(dev)->regs.config1 |= CFG1_RECVSPECBRMULTI;
295 else
296 priv(dev)->regs.config1 |= CFG1_RECVSPECBROAD;
297
298 /*
299 * There is a problem with the NQ8005 in that it occasionally loses the
300 * last two bytes. To get round this problem, we receive the CRC as
301 * well. That way, if we do lose the last two, then it doesn't matter.
302 */
303 ether3_outw(priv(dev)->regs.config1 | CFG1_TRANSEND, REG_CONFIG1);
304 ether3_outw((TX_END>>8) - 1, REG_BUFWIN);
305 ether3_outw(priv(dev)->rx_head, REG_RECVPTR);
306 ether3_outw(0, REG_TRANSMITPTR);
307 ether3_outw(priv(dev)->rx_head >> 8, REG_RECVEND);
308 ether3_outw(priv(dev)->regs.config2, REG_CONFIG2);
309 ether3_outw(priv(dev)->regs.config1 | CFG1_LOCBUFMEM, REG_CONFIG1);
310 ether3_outw(priv(dev)->regs.command, REG_COMMAND);
311
312 i = ether3_ramtest(dev, 0x5A);
313 if(i)
314 return i;
315 i = ether3_ramtest(dev, 0x1E);
316 if(i)
317 return i;
318
319 ether3_setbuffer(dev, buffer_write, 0);
320 ether3_writelong(dev, 0);
321 return 0;
322}
323
324static void
325ether3_init_for_open(struct net_device *dev)
326{
327 int i;
328
329 memset(&priv(dev)->stats, 0, sizeof(struct net_device_stats));
330
331 /* Reset the chip */
332 ether3_outw(CFG2_RESET, REG_CONFIG2);
333 udelay(4);
334
335 priv(dev)->regs.command = 0;
336 ether3_outw(CMD_RXOFF|CMD_TXOFF, REG_COMMAND);
337 while (ether3_inw(REG_STATUS) & (STAT_RXON|STAT_TXON))
338 barrier();
339
340 ether3_outw(priv(dev)->regs.config1 | CFG1_BUFSELSTAT0, REG_CONFIG1);
341 for (i = 0; i < 6; i++)
342 ether3_outb(dev->dev_addr[i], REG_BUFWIN);
343
344 priv(dev)->tx_head = 0;
345 priv(dev)->tx_tail = 0;
346 priv(dev)->regs.config2 |= CFG2_CTRLO;
347 priv(dev)->rx_head = RX_START;
348
349 ether3_outw(priv(dev)->regs.config1 | CFG1_TRANSEND, REG_CONFIG1);
350 ether3_outw((TX_END>>8) - 1, REG_BUFWIN);
351 ether3_outw(priv(dev)->rx_head, REG_RECVPTR);
352 ether3_outw(priv(dev)->rx_head >> 8, REG_RECVEND);
353 ether3_outw(0, REG_TRANSMITPTR);
354 ether3_outw(priv(dev)->regs.config2, REG_CONFIG2);
355 ether3_outw(priv(dev)->regs.config1 | CFG1_LOCBUFMEM, REG_CONFIG1);
356
357 ether3_setbuffer(dev, buffer_write, 0);
358 ether3_writelong(dev, 0);
359
360 priv(dev)->regs.command = CMD_ENINTRX | CMD_ENINTTX;
361 ether3_outw(priv(dev)->regs.command | CMD_RXON, REG_COMMAND);
362}
363
364static inline int
365ether3_probe_bus_8(struct net_device *dev, int val)
366{
367 int write_low, write_high, read_low, read_high;
368
369 write_low = val & 255;
370 write_high = val >> 8;
371
372 printk(KERN_DEBUG "ether3_probe: write8 [%02X:%02X]", write_high, write_low);
373
374 ether3_outb(write_low, REG_RECVPTR);
375 ether3_outb(write_high, REG_RECVPTR + 4);
376
377 read_low = ether3_inb(REG_RECVPTR);
378 read_high = ether3_inb(REG_RECVPTR + 4);
379
380 printk(", read8 [%02X:%02X]\n", read_high, read_low);
381
382 return read_low == write_low && read_high == write_high;
383}
384
385static inline int
386ether3_probe_bus_16(struct net_device *dev, int val)
387{
388 int read_val;
389
390 ether3_outw(val, REG_RECVPTR);
391 read_val = ether3_inw(REG_RECVPTR);
392
393 printk(KERN_DEBUG "ether3_probe: write16 [%04X], read16 [%04X]\n", val, read_val);
394
395 return read_val == val;
396}
397
398/*
399 * Open/initialize the board. This is called (in the current kernel)
400 * sometime after booting when the 'ifconfig' program is run.
401 *
402 * This routine should set everything up anew at each open, even
403 * registers that "should" only need to be set once at boot, so that
404 * there is non-reboot way to recover if something goes wrong.
405 */
406static int
407ether3_open(struct net_device *dev)
408{
409 if (!is_valid_ether_addr(dev->dev_addr)) {
410 printk(KERN_WARNING "%s: invalid ethernet MAC address\n",
411 dev->name);
412 return -EINVAL;
413 }
414
415 if (request_irq(dev->irq, ether3_interrupt, 0, "ether3", dev))
416 return -EAGAIN;
417
418 ether3_init_for_open(dev);
419
420 netif_start_queue(dev);
421
422 return 0;
423}
424
425/*
426 * The inverse routine to ether3_open().
427 */
428static int
429ether3_close(struct net_device *dev)
430{
431 netif_stop_queue(dev);
432
433 disable_irq(dev->irq);
434
435 ether3_outw(CMD_RXOFF|CMD_TXOFF, REG_COMMAND);
436 priv(dev)->regs.command = 0;
437 while (ether3_inw(REG_STATUS) & (STAT_RXON|STAT_TXON))
438 barrier();
439 ether3_outb(0x80, REG_CONFIG2 + 4);
440 ether3_outw(0, REG_COMMAND);
441
442 free_irq(dev->irq, dev);
443
444 return 0;
445}
446
447/*
448 * Get the current statistics. This may be called with the card open or
449 * closed.
450 */
451static struct net_device_stats *ether3_getstats(struct net_device *dev)
452{
453 return &priv(dev)->stats;
454}
455
456/*
457 * Set or clear promiscuous/multicast mode filter for this adaptor.
458 *
459 * We don't attempt any packet filtering. The card may have a SEEQ 8004
460 * in which does not have the other ethernet address registers present...
461 */
462static void ether3_setmulticastlist(struct net_device *dev)
463{
464 priv(dev)->regs.config1 &= ~CFG1_RECVPROMISC;
465
466 if (dev->flags & IFF_PROMISC) {
467 /* promiscuous mode */
468 priv(dev)->regs.config1 |= CFG1_RECVPROMISC;
469 } else if (dev->flags & IFF_ALLMULTI) {
470 priv(dev)->regs.config1 |= CFG1_RECVSPECBRMULTI;
471 } else
472 priv(dev)->regs.config1 |= CFG1_RECVSPECBROAD;
473
474 ether3_outw(priv(dev)->regs.config1 | CFG1_LOCBUFMEM, REG_CONFIG1);
475}
476
477static void ether3_timeout(struct net_device *dev)
478{
479 unsigned long flags;
480
481 del_timer(&priv(dev)->timer);
482
483 local_irq_save(flags);
484 printk(KERN_ERR "%s: transmit timed out, network cable problem?\n", dev->name);
485 printk(KERN_ERR "%s: state: { status=%04X cfg1=%04X cfg2=%04X }\n", dev->name,
486 ether3_inw(REG_STATUS), ether3_inw(REG_CONFIG1), ether3_inw(REG_CONFIG2));
487 printk(KERN_ERR "%s: { rpr=%04X rea=%04X tpr=%04X }\n", dev->name,
488 ether3_inw(REG_RECVPTR), ether3_inw(REG_RECVEND), ether3_inw(REG_TRANSMITPTR));
489 printk(KERN_ERR "%s: tx head=%X tx tail=%X\n", dev->name,
490 priv(dev)->tx_head, priv(dev)->tx_tail);
491 ether3_setbuffer(dev, buffer_read, priv(dev)->tx_tail);
492 printk(KERN_ERR "%s: packet status = %08X\n", dev->name, ether3_readlong(dev));
493 local_irq_restore(flags);
494
495 priv(dev)->regs.config2 |= CFG2_CTRLO;
496 priv(dev)->stats.tx_errors += 1;
497 ether3_outw(priv(dev)->regs.config2, REG_CONFIG2);
498 priv(dev)->tx_head = priv(dev)->tx_tail = 0;
499
500 netif_wake_queue(dev);
501}
502
503/*
504 * Transmit a packet
505 */
506static int
507ether3_sendpacket(struct sk_buff *skb, struct net_device *dev)
508{
509 unsigned long flags;
510 unsigned int length = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
511 unsigned int ptr, next_ptr;
512
513 if (priv(dev)->broken) {
514 dev_kfree_skb(skb);
515 priv(dev)->stats.tx_dropped ++;
516 netif_start_queue(dev);
517 return 0;
518 }
519
520 length = (length + 1) & ~1;
521 if (length != skb->len) {
522 skb = skb_padto(skb, length);
523 if (skb == NULL)
524 goto out;
525 }
526
527 next_ptr = (priv(dev)->tx_head + 1) & 15;
528
529 local_irq_save(flags);
530
531 if (priv(dev)->tx_tail == next_ptr) {
532 local_irq_restore(flags);
533 return 1; /* unable to queue */
534 }
535
536 dev->trans_start = jiffies;
537 ptr = 0x600 * priv(dev)->tx_head;
538 priv(dev)->tx_head = next_ptr;
539 next_ptr *= 0x600;
540
541#define TXHDR_FLAGS (TXHDR_TRANSMIT|TXHDR_CHAINCONTINUE|TXHDR_DATAFOLLOWS|TXHDR_ENSUCCESS)
542
543 ether3_setbuffer(dev, buffer_write, next_ptr);
544 ether3_writelong(dev, 0);
545 ether3_setbuffer(dev, buffer_write, ptr);
546 ether3_writelong(dev, 0);
547 ether3_writebuffer(dev, skb->data, length);
548 ether3_writeword(dev, htons(next_ptr));
549 ether3_writeword(dev, TXHDR_CHAINCONTINUE >> 16);
550 ether3_setbuffer(dev, buffer_write, ptr);
551 ether3_writeword(dev, htons((ptr + length + 4)));
552 ether3_writeword(dev, TXHDR_FLAGS >> 16);
553 ether3_ledon(dev);
554
555 if (!(ether3_inw(REG_STATUS) & STAT_TXON)) {
556 ether3_outw(ptr, REG_TRANSMITPTR);
557 ether3_outw(priv(dev)->regs.command | CMD_TXON, REG_COMMAND);
558 }
559
560 next_ptr = (priv(dev)->tx_head + 1) & 15;
561 local_irq_restore(flags);
562
563 dev_kfree_skb(skb);
564
565 if (priv(dev)->tx_tail == next_ptr)
566 netif_stop_queue(dev);
567
568 out:
569 return 0;
570}
571
572static irqreturn_t
573ether3_interrupt(int irq, void *dev_id, struct pt_regs *regs)
574{
575 struct net_device *dev = (struct net_device *)dev_id;
576 unsigned int status, handled = IRQ_NONE;
577
578#if NET_DEBUG > 1
579 if(net_debug & DEBUG_INT)
580 printk("eth3irq: %d ", irq);
581#endif
582
583 status = ether3_inw(REG_STATUS);
584
585 if (status & STAT_INTRX) {
586 ether3_outw(CMD_ACKINTRX | priv(dev)->regs.command, REG_COMMAND);
587 ether3_rx(dev, 12);
588 handled = IRQ_HANDLED;
589 }
590
591 if (status & STAT_INTTX) {
592 ether3_outw(CMD_ACKINTTX | priv(dev)->regs.command, REG_COMMAND);
593 ether3_tx(dev);
594 handled = IRQ_HANDLED;
595 }
596
597#if NET_DEBUG > 1
598 if(net_debug & DEBUG_INT)
599 printk("done\n");
600#endif
601 return handled;
602}
603
604/*
605 * If we have a good packet(s), get it/them out of the buffers.
606 */
607static int ether3_rx(struct net_device *dev, unsigned int maxcnt)
608{
609 unsigned int next_ptr = priv(dev)->rx_head, received = 0;
610
611 ether3_ledon(dev);
612
613 do {
614 unsigned int this_ptr, status;
615 unsigned char addrs[16];
616
617 /*
618 * read the first 16 bytes from the buffer.
619 * This contains the status bytes etc and ethernet addresses,
620 * and we also check the source ethernet address to see if
621 * it originated from us.
622 */
623 {
624 unsigned int temp_ptr;
625 ether3_setbuffer(dev, buffer_read, next_ptr);
626 temp_ptr = ether3_readword(dev);
627 status = ether3_readword(dev);
628 if ((status & (RXSTAT_DONE | RXHDR_CHAINCONTINUE | RXHDR_RECEIVE)) !=
629 (RXSTAT_DONE | RXHDR_CHAINCONTINUE) || !temp_ptr)
630 break;
631
632 this_ptr = next_ptr + 4;
633 next_ptr = ntohs(temp_ptr);
634 }
635 ether3_setbuffer(dev, buffer_read, this_ptr);
636 ether3_readbuffer(dev, addrs+2, 12);
637
638if (next_ptr < RX_START || next_ptr >= RX_END) {
639 int i;
640 printk("%s: bad next pointer @%04X: ", dev->name, priv(dev)->rx_head);
641 printk("%02X %02X %02X %02X ", next_ptr >> 8, next_ptr & 255, status & 255, status >> 8);
642 for (i = 2; i < 14; i++)
643 printk("%02X ", addrs[i]);
644 printk("\n");
645 next_ptr = priv(dev)->rx_head;
646 break;
647}
648 /*
649 * ignore our own packets...
650 */
651 if (!(*(unsigned long *)&dev->dev_addr[0] ^ *(unsigned long *)&addrs[2+6]) &&
652 !(*(unsigned short *)&dev->dev_addr[4] ^ *(unsigned short *)&addrs[2+10])) {
653 maxcnt ++; /* compensate for loopedback packet */
654 ether3_outw(next_ptr >> 8, REG_RECVEND);
655 } else
656 if (!(status & (RXSTAT_OVERSIZE|RXSTAT_CRCERROR|RXSTAT_DRIBBLEERROR|RXSTAT_SHORTPACKET))) {
657 unsigned int length = next_ptr - this_ptr;
658 struct sk_buff *skb;
659
660 if (next_ptr <= this_ptr)
661 length += RX_END - RX_START;
662
663 skb = dev_alloc_skb(length + 2);
664 if (skb) {
665 unsigned char *buf;
666
667 skb->dev = dev;
668 skb_reserve(skb, 2);
669 buf = skb_put(skb, length);
670 ether3_readbuffer(dev, buf + 12, length - 12);
671 ether3_outw(next_ptr >> 8, REG_RECVEND);
672 *(unsigned short *)(buf + 0) = *(unsigned short *)(addrs + 2);
673 *(unsigned long *)(buf + 2) = *(unsigned long *)(addrs + 4);
674 *(unsigned long *)(buf + 6) = *(unsigned long *)(addrs + 8);
675 *(unsigned short *)(buf + 10) = *(unsigned short *)(addrs + 12);
676 skb->protocol = eth_type_trans(skb, dev);
677 netif_rx(skb);
678 received ++;
679 } else
680 goto dropping;
681 } else {
682 struct net_device_stats *stats = &priv(dev)->stats;
683 ether3_outw(next_ptr >> 8, REG_RECVEND);
684 if (status & RXSTAT_OVERSIZE) stats->rx_over_errors ++;
685 if (status & RXSTAT_CRCERROR) stats->rx_crc_errors ++;
686 if (status & RXSTAT_DRIBBLEERROR) stats->rx_fifo_errors ++;
687 if (status & RXSTAT_SHORTPACKET) stats->rx_length_errors ++;
688 stats->rx_errors++;
689 }
690 }
691 while (-- maxcnt);
692
693done:
694 priv(dev)->stats.rx_packets += received;
695 priv(dev)->rx_head = next_ptr;
696 /*
697 * If rx went off line, then that means that the buffer may be full. We
698 * have dropped at least one packet.
699 */
700 if (!(ether3_inw(REG_STATUS) & STAT_RXON)) {
701 priv(dev)->stats.rx_dropped ++;
702 ether3_outw(next_ptr, REG_RECVPTR);
703 ether3_outw(priv(dev)->regs.command | CMD_RXON, REG_COMMAND);
704 }
705
706 return maxcnt;
707
708dropping:{
709 static unsigned long last_warned;
710
711 ether3_outw(next_ptr >> 8, REG_RECVEND);
712 /*
713 * Don't print this message too many times...
714 */
715 if (time_after(jiffies, last_warned + 10 * HZ)) {
716 last_warned = jiffies;
717 printk("%s: memory squeeze, dropping packet.\n", dev->name);
718 }
719 priv(dev)->stats.rx_dropped ++;
720 goto done;
721 }
722}
723
724/*
725 * Update stats for the transmitted packet(s)
726 */
727static void ether3_tx(struct net_device *dev)
728{
729 unsigned int tx_tail = priv(dev)->tx_tail;
730 int max_work = 14;
731
732 do {
733 unsigned long status;
734
735 /*
736 * Read the packet header
737 */
738 ether3_setbuffer(dev, buffer_read, tx_tail * 0x600);
739 status = ether3_readlong(dev);
740
741 /*
742 * Check to see if this packet has been transmitted
743 */
744 if ((status & (TXSTAT_DONE | TXHDR_TRANSMIT)) !=
745 (TXSTAT_DONE | TXHDR_TRANSMIT))
746 break;
747
748 /*
749 * Update errors
750 */
751 if (!(status & (TXSTAT_BABBLED | TXSTAT_16COLLISIONS)))
752 priv(dev)->stats.tx_packets++;
753 else {
754 priv(dev)->stats.tx_errors ++;
755 if (status & TXSTAT_16COLLISIONS)
756 priv(dev)->stats.collisions += 16;
757 if (status & TXSTAT_BABBLED)
758 priv(dev)->stats.tx_fifo_errors ++;
759 }
760
761 tx_tail = (tx_tail + 1) & 15;
762 } while (--max_work);
763
764 if (priv(dev)->tx_tail != tx_tail) {
765 priv(dev)->tx_tail = tx_tail;
766 netif_wake_queue(dev);
767 }
768}
769
770static void __init ether3_banner(void)
771{
772 static unsigned version_printed = 0;
773
774 if (net_debug && version_printed++ == 0)
775 printk(KERN_INFO "%s", version);
776}
777
778static int __devinit
779ether3_probe(struct expansion_card *ec, const struct ecard_id *id)
780{
781 const struct ether3_data *data = id->data;
782 struct net_device *dev;
783 int i, bus_type, ret;
784
785 ether3_banner();
786
787 ret = ecard_request_resources(ec);
788 if (ret)
789 goto out;
790
791 dev = alloc_etherdev(sizeof(struct dev_priv));
792 if (!dev) {
793 ret = -ENOMEM;
794 goto release;
795 }
796
797 SET_MODULE_OWNER(dev);
798 SET_NETDEV_DEV(dev, &ec->dev);
799
800 priv(dev)->base = ioremap(ecard_resource_start(ec, ECARD_RES_MEMC),
801 ecard_resource_len(ec, ECARD_RES_MEMC));
802 if (!priv(dev)->base) {
803 ret = -ENOMEM;
804 goto free;
805 }
806
807 ec->irqaddr = priv(dev)->base + data->base_offset;
808 ec->irqmask = 0xf0;
809
810 priv(dev)->seeq = priv(dev)->base + data->base_offset;
811 dev->irq = ec->irq;
812
813 ether3_addr(dev->dev_addr, ec);
814
815 init_timer(&priv(dev)->timer);
816
817 /* Reset card...
818 */
819 ether3_outb(0x80, REG_CONFIG2 + 4);
820 bus_type = BUS_UNKNOWN;
821 udelay(4);
822
823 /* Test using Receive Pointer (16-bit register) to find out
824 * how the ether3 is connected to the bus...
825 */
826 if (ether3_probe_bus_8(dev, 0x100) &&
827 ether3_probe_bus_8(dev, 0x201))
828 bus_type = BUS_8;
829
830 if (bus_type == BUS_UNKNOWN &&
831 ether3_probe_bus_16(dev, 0x101) &&
832 ether3_probe_bus_16(dev, 0x201))
833 bus_type = BUS_16;
834
835 switch (bus_type) {
836 case BUS_UNKNOWN:
837 printk(KERN_ERR "%s: unable to identify bus width\n", dev->name);
838 ret = -ENODEV;
839 goto free;
840
841 case BUS_8:
842 printk(KERN_ERR "%s: %s found, but is an unsupported "
843 "8-bit card\n", dev->name, data->name);
844 ret = -ENODEV;
845 goto free;
846
847 default:
848 break;
849 }
850
851 if (ether3_init_2(dev)) {
852 ret = -ENODEV;
853 goto free;
854 }
855
856 dev->open = ether3_open;
857 dev->stop = ether3_close;
858 dev->hard_start_xmit = ether3_sendpacket;
859 dev->get_stats = ether3_getstats;
860 dev->set_multicast_list = ether3_setmulticastlist;
861 dev->tx_timeout = ether3_timeout;
862 dev->watchdog_timeo = 5 * HZ / 100;
863
864 ret = register_netdev(dev);
865 if (ret)
866 goto free;
867
868 printk("%s: %s in slot %d, ", dev->name, data->name, ec->slot_no);
869 for (i = 0; i < 6; i++)
870 printk("%2.2x%c", dev->dev_addr[i], i == 5 ? '\n' : ':');
871
872 ecard_set_drvdata(ec, dev);
873 return 0;
874
875 free:
876 if (priv(dev)->base)
877 iounmap(priv(dev)->base);
878 free_netdev(dev);
879 release:
880 ecard_release_resources(ec);
881 out:
882 return ret;
883}
884
885static void __devexit ether3_remove(struct expansion_card *ec)
886{
887 struct net_device *dev = ecard_get_drvdata(ec);
888
889 ecard_set_drvdata(ec, NULL);
890
891 unregister_netdev(dev);
892 iounmap(priv(dev)->base);
893 free_netdev(dev);
894 ecard_release_resources(ec);
895}
896
897static struct ether3_data ether3 = {
898 .name = "ether3",
899 .base_offset = 0,
900};
901
902static struct ether3_data etherb = {
903 .name = "etherb",
904 .base_offset = 0x800,
905};
906
907static const struct ecard_id ether3_ids[] = {
908 { MANU_ANT2, PROD_ANT_ETHER3, &ether3 },
909 { MANU_ANT, PROD_ANT_ETHER3, &ether3 },
910 { MANU_ANT, PROD_ANT_ETHERB, &etherb },
911 { 0xffff, 0xffff }
912};
913
914static struct ecard_driver ether3_driver = {
915 .probe = ether3_probe,
916 .remove = __devexit_p(ether3_remove),
917 .id_table = ether3_ids,
918 .drv = {
919 .name = "ether3",
920 },
921};
922
923static int __init ether3_init(void)
924{
925 return ecard_register_driver(&ether3_driver);
926}
927
928static void __exit ether3_exit(void)
929{
930 ecard_remove_driver(&ether3_driver);
931}
932
933module_init(ether3_init);
934module_exit(ether3_exit);
935
936MODULE_LICENSE("GPL");
diff --git a/drivers/net/arm/ether3.h b/drivers/net/arm/ether3.h
new file mode 100644
index 000000000000..1921a3a07da7
--- /dev/null
+++ b/drivers/net/arm/ether3.h
@@ -0,0 +1,177 @@
1/*
2 * linux/drivers/acorn/net/ether3.h
3 *
4 * Copyright (C) 1995-2000 Russell King
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 *
10 * network driver for Acorn/ANT Ether3 cards
11 */
12
13#ifndef _LINUX_ether3_H
14#define _LINUX_ether3_H
15
16/* use 0 for production, 1 for verification, >2 for debug. debug flags: */
17#define DEBUG_TX 2
18#define DEBUG_RX 4
19#define DEBUG_INT 8
20#define DEBUG_IC 16
21#ifndef NET_DEBUG
22#define NET_DEBUG 0
23#endif
24
25#define priv(dev) ((struct dev_priv *)netdev_priv(dev))
26
27/* Command register definitions & bits */
28#define REG_COMMAND (priv(dev)->seeq + 0x0000)
29#define CMD_ENINTDMA 0x0001
30#define CMD_ENINTRX 0x0002
31#define CMD_ENINTTX 0x0004
32#define CMD_ENINTBUFWIN 0x0008
33#define CMD_ACKINTDMA 0x0010
34#define CMD_ACKINTRX 0x0020
35#define CMD_ACKINTTX 0x0040
36#define CMD_ACKINTBUFWIN 0x0080
37#define CMD_DMAON 0x0100
38#define CMD_RXON 0x0200
39#define CMD_TXON 0x0400
40#define CMD_DMAOFF 0x0800
41#define CMD_RXOFF 0x1000
42#define CMD_TXOFF 0x2000
43#define CMD_FIFOREAD 0x4000
44#define CMD_FIFOWRITE 0x8000
45
46/* status register */
47#define REG_STATUS (priv(dev)->seeq + 0x0000)
48#define STAT_ENINTSTAT 0x0001
49#define STAT_ENINTRX 0x0002
50#define STAT_ENINTTX 0x0004
51#define STAT_ENINTBUFWIN 0x0008
52#define STAT_INTDMA 0x0010
53#define STAT_INTRX 0x0020
54#define STAT_INTTX 0x0040
55#define STAT_INTBUFWIN 0x0080
56#define STAT_DMAON 0x0100
57#define STAT_RXON 0x0200
58#define STAT_TXON 0x0400
59#define STAT_FIFOFULL 0x2000
60#define STAT_FIFOEMPTY 0x4000
61#define STAT_FIFODIR 0x8000
62
63/* configuration register 1 */
64#define REG_CONFIG1 (priv(dev)->seeq + 0x0040)
65#define CFG1_BUFSELSTAT0 0x0000
66#define CFG1_BUFSELSTAT1 0x0001
67#define CFG1_BUFSELSTAT2 0x0002
68#define CFG1_BUFSELSTAT3 0x0003
69#define CFG1_BUFSELSTAT4 0x0004
70#define CFG1_BUFSELSTAT5 0x0005
71#define CFG1_ADDRPROM 0x0006
72#define CFG1_TRANSEND 0x0007
73#define CFG1_LOCBUFMEM 0x0008
74#define CFG1_INTVECTOR 0x0009
75#define CFG1_RECVSPECONLY 0x0000
76#define CFG1_RECVSPECBROAD 0x4000
77#define CFG1_RECVSPECBRMULTI 0x8000
78#define CFG1_RECVPROMISC 0xC000
79
80/* The following aren't in 8004 */
81#define CFG1_DMABURSTCONT 0x0000
82#define CFG1_DMABURST800NS 0x0010
83#define CFG1_DMABURST1600NS 0x0020
84#define CFG1_DMABURST3200NS 0x0030
85#define CFG1_DMABURST1 0x0000
86#define CFG1_DMABURST4 0x0040
87#define CFG1_DMABURST8 0x0080
88#define CFG1_DMABURST16 0x00C0
89#define CFG1_RECVCOMPSTAT0 0x0100
90#define CFG1_RECVCOMPSTAT1 0x0200
91#define CFG1_RECVCOMPSTAT2 0x0400
92#define CFG1_RECVCOMPSTAT3 0x0800
93#define CFG1_RECVCOMPSTAT4 0x1000
94#define CFG1_RECVCOMPSTAT5 0x2000
95
96/* configuration register 2 */
97#define REG_CONFIG2 (priv(dev)->seeq + 0x0080)
98#define CFG2_BYTESWAP 0x0001
99#define CFG2_ERRENCRC 0x0008
100#define CFG2_ERRENDRIBBLE 0x0010
101#define CFG2_ERRSHORTFRAME 0x0020
102#define CFG2_SLOTSELECT 0x0040
103#define CFG2_PREAMSELECT 0x0080
104#define CFG2_ADDRLENGTH 0x0100
105#define CFG2_RECVCRC 0x0200
106#define CFG2_XMITNOCRC 0x0400
107#define CFG2_LOOPBACK 0x0800
108#define CFG2_CTRLO 0x1000
109#define CFG2_RESET 0x8000
110
111#define REG_RECVEND (priv(dev)->seeq + 0x00c0)
112
113#define REG_BUFWIN (priv(dev)->seeq + 0x0100)
114
115#define REG_RECVPTR (priv(dev)->seeq + 0x0140)
116
117#define REG_TRANSMITPTR (priv(dev)->seeq + 0x0180)
118
119#define REG_DMAADDR (priv(dev)->seeq + 0x01c0)
120
121/*
122 * Cards transmit/receive headers
123 */
124#define TX_NEXT (0xffff)
125#define TXHDR_ENBABBLEINT (1 << 16)
126#define TXHDR_ENCOLLISIONINT (1 << 17)
127#define TXHDR_EN16COLLISION (1 << 18)
128#define TXHDR_ENSUCCESS (1 << 19)
129#define TXHDR_DATAFOLLOWS (1 << 21)
130#define TXHDR_CHAINCONTINUE (1 << 22)
131#define TXHDR_TRANSMIT (1 << 23)
132#define TXSTAT_BABBLED (1 << 24)
133#define TXSTAT_COLLISION (1 << 25)
134#define TXSTAT_16COLLISIONS (1 << 26)
135#define TXSTAT_DONE (1 << 31)
136
137#define RX_NEXT (0xffff)
138#define RXHDR_CHAINCONTINUE (1 << 6)
139#define RXHDR_RECEIVE (1 << 7)
140#define RXSTAT_OVERSIZE (1 << 8)
141#define RXSTAT_CRCERROR (1 << 9)
142#define RXSTAT_DRIBBLEERROR (1 << 10)
143#define RXSTAT_SHORTPACKET (1 << 11)
144#define RXSTAT_DONE (1 << 15)
145
146
147#define TX_START 0x0000
148#define TX_END 0x6000
149#define RX_START 0x6000
150#define RX_LEN 0xA000
151#define RX_END 0x10000
152/* must be a power of 2 and greater than MAX_TX_BUFFERED */
153#define MAX_TXED 16
154#define MAX_TX_BUFFERED 10
155
156struct dev_priv {
157 void __iomem *base;
158 void __iomem *seeq;
159 struct {
160 unsigned int command;
161 unsigned int config1;
162 unsigned int config2;
163 } regs;
164 unsigned char tx_head; /* buffer nr to insert next packet */
165 unsigned char tx_tail; /* buffer nr of transmitting packet */
166 unsigned int rx_head; /* address to fetch next packet from */
167 struct net_device_stats stats;
168 struct timer_list timer;
169 int broken; /* 0 = ok, 1 = something went wrong */
170};
171
172struct ether3_data {
173 const char name[8];
174 unsigned long base_offset;
175};
176
177#endif
diff --git a/drivers/net/arm/etherh.c b/drivers/net/arm/etherh.c
new file mode 100644
index 000000000000..942a2819576c
--- /dev/null
+++ b/drivers/net/arm/etherh.c
@@ -0,0 +1,862 @@
1/*
2 * linux/drivers/acorn/net/etherh.c
3 *
4 * Copyright (C) 2000-2002 Russell King
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 *
10 * NS8390 I-cubed EtherH and ANT EtherM specific driver
11 * Thanks to I-Cubed for information on their cards.
12 * EtherM conversion (C) 1999 Chris Kemp and Tim Watterton
13 * EtherM integration (C) 2000 Aleph One Ltd (Tak-Shing Chan)
14 * EtherM integration re-engineered by Russell King.
15 *
16 * Changelog:
17 * 08-12-1996 RMK 1.00 Created
18 * RMK 1.03 Added support for EtherLan500 cards
19 * 23-11-1997 RMK 1.04 Added media autodetection
20 * 16-04-1998 RMK 1.05 Improved media autodetection
21 * 10-02-2000 RMK 1.06 Updated for 2.3.43
22 * 13-05-2000 RMK 1.07 Updated for 2.3.99-pre8
23 * 12-10-1999 CK/TEW EtherM driver first release
24 * 21-12-2000 TTC EtherH/EtherM integration
25 * 25-12-2000 RMK 1.08 Clean integration of EtherM into this driver.
26 * 03-01-2002 RMK 1.09 Always enable IRQs if we're in the nic slot.
27 */
28
29#include <linux/module.h>
30#include <linux/kernel.h>
31#include <linux/sched.h>
32#include <linux/types.h>
33#include <linux/fcntl.h>
34#include <linux/interrupt.h>
35#include <linux/ptrace.h>
36#include <linux/ioport.h>
37#include <linux/in.h>
38#include <linux/slab.h>
39#include <linux/string.h>
40#include <linux/errno.h>
41#include <linux/netdevice.h>
42#include <linux/etherdevice.h>
43#include <linux/ethtool.h>
44#include <linux/skbuff.h>
45#include <linux/delay.h>
46#include <linux/device.h>
47#include <linux/init.h>
48#include <linux/bitops.h>
49
50#include <asm/system.h>
51#include <asm/ecard.h>
52#include <asm/io.h>
53#include <asm/irq.h>
54
55#include "../8390.h"
56
57#define NET_DEBUG 0
58#define DEBUG_INIT 2
59
60#define DRV_NAME "etherh"
61#define DRV_VERSION "1.11"
62
63static unsigned int net_debug = NET_DEBUG;
64
65struct etherh_priv {
66 void __iomem *ioc_fast;
67 void __iomem *memc;
68 void __iomem *dma_base;
69 unsigned int id;
70 void __iomem *ctrl_port;
71 unsigned char ctrl;
72 u32 supported;
73};
74
75struct etherh_data {
76 unsigned long ns8390_offset;
77 unsigned long dataport_offset;
78 unsigned long ctrlport_offset;
79 int ctrl_ioc;
80 const char name[16];
81 u32 supported;
82 unsigned char tx_start_page;
83 unsigned char stop_page;
84};
85
86MODULE_AUTHOR("Russell King");
87MODULE_DESCRIPTION("EtherH/EtherM driver");
88MODULE_LICENSE("GPL");
89
90static char version[] __initdata =
91 "EtherH/EtherM Driver (c) 2002-2004 Russell King " DRV_VERSION "\n";
92
93#define ETHERH500_DATAPORT 0x800 /* MEMC */
94#define ETHERH500_NS8390 0x000 /* MEMC */
95#define ETHERH500_CTRLPORT 0x800 /* IOC */
96
97#define ETHERH600_DATAPORT 0x040 /* MEMC */
98#define ETHERH600_NS8390 0x800 /* MEMC */
99#define ETHERH600_CTRLPORT 0x200 /* MEMC */
100
101#define ETHERH_CP_IE 1
102#define ETHERH_CP_IF 2
103#define ETHERH_CP_HEARTBEAT 2
104
105#define ETHERH_TX_START_PAGE 1
106#define ETHERH_STOP_PAGE 127
107
108/*
109 * These came from CK/TEW
110 */
111#define ETHERM_DATAPORT 0x200 /* MEMC */
112#define ETHERM_NS8390 0x800 /* MEMC */
113#define ETHERM_CTRLPORT 0x23c /* MEMC */
114
115#define ETHERM_TX_START_PAGE 64
116#define ETHERM_STOP_PAGE 127
117
118/* ------------------------------------------------------------------------ */
119
120#define etherh_priv(dev) \
121 ((struct etherh_priv *)(((char *)netdev_priv(dev)) + sizeof(struct ei_device)))
122
123static inline void etherh_set_ctrl(struct etherh_priv *eh, unsigned char mask)
124{
125 unsigned char ctrl = eh->ctrl | mask;
126 eh->ctrl = ctrl;
127 writeb(ctrl, eh->ctrl_port);
128}
129
130static inline void etherh_clr_ctrl(struct etherh_priv *eh, unsigned char mask)
131{
132 unsigned char ctrl = eh->ctrl & ~mask;
133 eh->ctrl = ctrl;
134 writeb(ctrl, eh->ctrl_port);
135}
136
137static inline unsigned int etherh_get_stat(struct etherh_priv *eh)
138{
139 return readb(eh->ctrl_port);
140}
141
142
143
144
145static void etherh_irq_enable(ecard_t *ec, int irqnr)
146{
147 struct etherh_priv *eh = ec->irq_data;
148
149 etherh_set_ctrl(eh, ETHERH_CP_IE);
150}
151
152static void etherh_irq_disable(ecard_t *ec, int irqnr)
153{
154 struct etherh_priv *eh = ec->irq_data;
155
156 etherh_clr_ctrl(eh, ETHERH_CP_IE);
157}
158
159static expansioncard_ops_t etherh_ops = {
160 .irqenable = etherh_irq_enable,
161 .irqdisable = etherh_irq_disable,
162};
163
164
165
166
167static void
168etherh_setif(struct net_device *dev)
169{
170 struct ei_device *ei_local = netdev_priv(dev);
171 unsigned long flags;
172 void __iomem *addr;
173
174 local_irq_save(flags);
175
176 /* set the interface type */
177 switch (etherh_priv(dev)->id) {
178 case PROD_I3_ETHERLAN600:
179 case PROD_I3_ETHERLAN600A:
180 addr = (void *)dev->base_addr + EN0_RCNTHI;
181
182 switch (dev->if_port) {
183 case IF_PORT_10BASE2:
184 writeb((readb(addr) & 0xf8) | 1, addr);
185 break;
186 case IF_PORT_10BASET:
187 writeb((readb(addr) & 0xf8), addr);
188 break;
189 }
190 break;
191
192 case PROD_I3_ETHERLAN500:
193 switch (dev->if_port) {
194 case IF_PORT_10BASE2:
195 etherh_clr_ctrl(etherh_priv(dev), ETHERH_CP_IF);
196 break;
197
198 case IF_PORT_10BASET:
199 etherh_set_ctrl(etherh_priv(dev), ETHERH_CP_IF);
200 break;
201 }
202 break;
203
204 default:
205 break;
206 }
207
208 local_irq_restore(flags);
209}
210
211static int
212etherh_getifstat(struct net_device *dev)
213{
214 struct ei_device *ei_local = netdev_priv(dev);
215 void __iomem *addr;
216 int stat = 0;
217
218 switch (etherh_priv(dev)->id) {
219 case PROD_I3_ETHERLAN600:
220 case PROD_I3_ETHERLAN600A:
221 addr = (void *)dev->base_addr + EN0_RCNTHI;
222 switch (dev->if_port) {
223 case IF_PORT_10BASE2:
224 stat = 1;
225 break;
226 case IF_PORT_10BASET:
227 stat = readb(addr) & 4;
228 break;
229 }
230 break;
231
232 case PROD_I3_ETHERLAN500:
233 switch (dev->if_port) {
234 case IF_PORT_10BASE2:
235 stat = 1;
236 break;
237 case IF_PORT_10BASET:
238 stat = etherh_get_stat(etherh_priv(dev)) & ETHERH_CP_HEARTBEAT;
239 break;
240 }
241 break;
242
243 default:
244 stat = 0;
245 break;
246 }
247
248 return stat != 0;
249}
250
251/*
252 * Configure the interface. Note that we ignore the other
253 * parts of ifmap, since its mostly meaningless for this driver.
254 */
255static int etherh_set_config(struct net_device *dev, struct ifmap *map)
256{
257 switch (map->port) {
258 case IF_PORT_10BASE2:
259 case IF_PORT_10BASET:
260 /*
261 * If the user explicitly sets the interface
262 * media type, turn off automedia detection.
263 */
264 dev->flags &= ~IFF_AUTOMEDIA;
265 dev->if_port = map->port;
266 break;
267
268 default:
269 return -EINVAL;
270 }
271
272 etherh_setif(dev);
273
274 return 0;
275}
276
277/*
278 * Reset the 8390 (hard reset). Note that we can't actually do this.
279 */
280static void
281etherh_reset(struct net_device *dev)
282{
283 struct ei_device *ei_local = netdev_priv(dev);
284 void __iomem *addr = (void *)dev->base_addr;
285
286 writeb(E8390_NODMA+E8390_PAGE0+E8390_STOP, addr);
287
288 /*
289 * See if we need to change the interface type.
290 * Note that we use 'interface_num' as a flag
291 * to indicate that we need to change the media.
292 */
293 if (dev->flags & IFF_AUTOMEDIA && ei_local->interface_num) {
294 ei_local->interface_num = 0;
295
296 if (dev->if_port == IF_PORT_10BASET)
297 dev->if_port = IF_PORT_10BASE2;
298 else
299 dev->if_port = IF_PORT_10BASET;
300
301 etherh_setif(dev);
302 }
303}
304
305/*
306 * Write a block of data out to the 8390
307 */
308static void
309etherh_block_output (struct net_device *dev, int count, const unsigned char *buf, int start_page)
310{
311 struct ei_device *ei_local = netdev_priv(dev);
312 unsigned long dma_start;
313 void __iomem *dma_base, *addr;
314
315 if (ei_local->dmaing) {
316 printk(KERN_ERR "%s: DMAing conflict in etherh_block_input: "
317 " DMAstat %d irqlock %d\n", dev->name,
318 ei_local->dmaing, ei_local->irqlock);
319 return;
320 }
321
322 /*
323 * Make sure we have a round number of bytes if we're in word mode.
324 */
325 if (count & 1 && ei_local->word16)
326 count++;
327
328 ei_local->dmaing = 1;
329
330 addr = (void *)dev->base_addr;
331 dma_base = etherh_priv(dev)->dma_base;
332
333 count = (count + 1) & ~1;
334 writeb (E8390_NODMA | E8390_PAGE0 | E8390_START, addr + E8390_CMD);
335
336 writeb (0x42, addr + EN0_RCNTLO);
337 writeb (0x00, addr + EN0_RCNTHI);
338 writeb (0x42, addr + EN0_RSARLO);
339 writeb (0x00, addr + EN0_RSARHI);
340 writeb (E8390_RREAD | E8390_START, addr + E8390_CMD);
341
342 udelay (1);
343
344 writeb (ENISR_RDC, addr + EN0_ISR);
345 writeb (count, addr + EN0_RCNTLO);
346 writeb (count >> 8, addr + EN0_RCNTHI);
347 writeb (0, addr + EN0_RSARLO);
348 writeb (start_page, addr + EN0_RSARHI);
349 writeb (E8390_RWRITE | E8390_START, addr + E8390_CMD);
350
351 if (ei_local->word16)
352 writesw (dma_base, buf, count >> 1);
353 else
354 writesb (dma_base, buf, count);
355
356 dma_start = jiffies;
357
358 while ((readb (addr + EN0_ISR) & ENISR_RDC) == 0)
359 if (jiffies - dma_start > 2*HZ/100) { /* 20ms */
360 printk(KERN_ERR "%s: timeout waiting for TX RDC\n",
361 dev->name);
362 etherh_reset (dev);
363 NS8390_init (dev, 1);
364 break;
365 }
366
367 writeb (ENISR_RDC, addr + EN0_ISR);
368 ei_local->dmaing = 0;
369}
370
371/*
372 * Read a block of data from the 8390
373 */
374static void
375etherh_block_input (struct net_device *dev, int count, struct sk_buff *skb, int ring_offset)
376{
377 struct ei_device *ei_local = netdev_priv(dev);
378 unsigned char *buf;
379 void __iomem *dma_base, *addr;
380
381 if (ei_local->dmaing) {
382 printk(KERN_ERR "%s: DMAing conflict in etherh_block_input: "
383 " DMAstat %d irqlock %d\n", dev->name,
384 ei_local->dmaing, ei_local->irqlock);
385 return;
386 }
387
388 ei_local->dmaing = 1;
389
390 addr = (void *)dev->base_addr;
391 dma_base = etherh_priv(dev)->dma_base;
392
393 buf = skb->data;
394 writeb (E8390_NODMA | E8390_PAGE0 | E8390_START, addr + E8390_CMD);
395 writeb (count, addr + EN0_RCNTLO);
396 writeb (count >> 8, addr + EN0_RCNTHI);
397 writeb (ring_offset, addr + EN0_RSARLO);
398 writeb (ring_offset >> 8, addr + EN0_RSARHI);
399 writeb (E8390_RREAD | E8390_START, addr + E8390_CMD);
400
401 if (ei_local->word16) {
402 readsw (dma_base, buf, count >> 1);
403 if (count & 1)
404 buf[count - 1] = readb (dma_base);
405 } else
406 readsb (dma_base, buf, count);
407
408 writeb (ENISR_RDC, addr + EN0_ISR);
409 ei_local->dmaing = 0;
410}
411
412/*
413 * Read a header from the 8390
414 */
415static void
416etherh_get_header (struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page)
417{
418 struct ei_device *ei_local = netdev_priv(dev);
419 void __iomem *dma_base, *addr;
420
421 if (ei_local->dmaing) {
422 printk(KERN_ERR "%s: DMAing conflict in etherh_get_header: "
423 " DMAstat %d irqlock %d\n", dev->name,
424 ei_local->dmaing, ei_local->irqlock);
425 return;
426 }
427
428 ei_local->dmaing = 1;
429
430 addr = (void *)dev->base_addr;
431 dma_base = etherh_priv(dev)->dma_base;
432
433 writeb (E8390_NODMA | E8390_PAGE0 | E8390_START, addr + E8390_CMD);
434 writeb (sizeof (*hdr), addr + EN0_RCNTLO);
435 writeb (0, addr + EN0_RCNTHI);
436 writeb (0, addr + EN0_RSARLO);
437 writeb (ring_page, addr + EN0_RSARHI);
438 writeb (E8390_RREAD | E8390_START, addr + E8390_CMD);
439
440 if (ei_local->word16)
441 readsw (dma_base, hdr, sizeof (*hdr) >> 1);
442 else
443 readsb (dma_base, hdr, sizeof (*hdr));
444
445 writeb (ENISR_RDC, addr + EN0_ISR);
446 ei_local->dmaing = 0;
447}
448
449/*
450 * Open/initialize the board. This is called (in the current kernel)
451 * sometime after booting when the 'ifconfig' program is run.
452 *
453 * This routine should set everything up anew at each open, even
454 * registers that "should" only need to be set once at boot, so that
455 * there is non-reboot way to recover if something goes wrong.
456 */
457static int
458etherh_open(struct net_device *dev)
459{
460 struct ei_device *ei_local = netdev_priv(dev);
461
462 if (!is_valid_ether_addr(dev->dev_addr)) {
463 printk(KERN_WARNING "%s: invalid ethernet MAC address\n",
464 dev->name);
465 return -EINVAL;
466 }
467
468 if (request_irq(dev->irq, ei_interrupt, 0, dev->name, dev))
469 return -EAGAIN;
470
471 /*
472 * Make sure that we aren't going to change the
473 * media type on the next reset - we are about to
474 * do automedia manually now.
475 */
476 ei_local->interface_num = 0;
477
478 /*
479 * If we are doing automedia detection, do it now.
480 * This is more reliable than the 8390's detection.
481 */
482 if (dev->flags & IFF_AUTOMEDIA) {
483 dev->if_port = IF_PORT_10BASET;
484 etherh_setif(dev);
485 mdelay(1);
486 if (!etherh_getifstat(dev)) {
487 dev->if_port = IF_PORT_10BASE2;
488 etherh_setif(dev);
489 }
490 } else
491 etherh_setif(dev);
492
493 etherh_reset(dev);
494 ei_open(dev);
495
496 return 0;
497}
498
499/*
500 * The inverse routine to etherh_open().
501 */
502static int
503etherh_close(struct net_device *dev)
504{
505 ei_close (dev);
506 free_irq (dev->irq, dev);
507 return 0;
508}
509
510/*
511 * Initialisation
512 */
513
514static void __init etherh_banner(void)
515{
516 static int version_printed;
517
518 if (net_debug && version_printed++ == 0)
519 printk(KERN_INFO "%s", version);
520}
521
522/*
523 * Read the ethernet address string from the on board rom.
524 * This is an ascii string...
525 */
526static int __init etherh_addr(char *addr, struct expansion_card *ec)
527{
528 struct in_chunk_dir cd;
529 char *s;
530
531 if (!ecard_readchunk(&cd, ec, 0xf5, 0)) {
532 printk(KERN_ERR "%s: unable to read podule description string\n",
533 ec->dev.bus_id);
534 goto no_addr;
535 }
536
537 s = strchr(cd.d.string, '(');
538 if (s) {
539 int i;
540
541 for (i = 0; i < 6; i++) {
542 addr[i] = simple_strtoul(s + 1, &s, 0x10);
543 if (*s != (i == 5? ')' : ':'))
544 break;
545 }
546
547 if (i == 6)
548 return 0;
549 }
550
551 printk(KERN_ERR "%s: unable to parse MAC address: %s\n",
552 ec->dev.bus_id, cd.d.string);
553
554 no_addr:
555 return -ENODEV;
556}
557
558/*
559 * Create an ethernet address from the system serial number.
560 */
561static int __init etherm_addr(char *addr)
562{
563 unsigned int serial;
564
565 if (system_serial_low == 0 && system_serial_high == 0)
566 return -ENODEV;
567
568 serial = system_serial_low | system_serial_high;
569
570 addr[0] = 0;
571 addr[1] = 0;
572 addr[2] = 0xa4;
573 addr[3] = 0x10 + (serial >> 24);
574 addr[4] = serial >> 16;
575 addr[5] = serial >> 8;
576 return 0;
577}
578
579static void etherh_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
580{
581 strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
582 strlcpy(info->version, DRV_VERSION, sizeof(info->version));
583 strlcpy(info->bus_info, dev->class_dev.dev->bus_id,
584 sizeof(info->bus_info));
585}
586
587static int etherh_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
588{
589 cmd->supported = etherh_priv(dev)->supported;
590 cmd->speed = SPEED_10;
591 cmd->duplex = DUPLEX_HALF;
592 cmd->port = dev->if_port == IF_PORT_10BASET ? PORT_TP : PORT_BNC;
593 cmd->autoneg = dev->flags & IFF_AUTOMEDIA ? AUTONEG_ENABLE : AUTONEG_DISABLE;
594 return 0;
595}
596
597static int etherh_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
598{
599 switch (cmd->autoneg) {
600 case AUTONEG_ENABLE:
601 dev->flags |= IFF_AUTOMEDIA;
602 break;
603
604 case AUTONEG_DISABLE:
605 switch (cmd->port) {
606 case PORT_TP:
607 dev->if_port = IF_PORT_10BASET;
608 break;
609
610 case PORT_BNC:
611 dev->if_port = IF_PORT_10BASE2;
612 break;
613
614 default:
615 return -EINVAL;
616 }
617 dev->flags &= ~IFF_AUTOMEDIA;
618 break;
619
620 default:
621 return -EINVAL;
622 }
623
624 etherh_setif(dev);
625
626 return 0;
627}
628
629static struct ethtool_ops etherh_ethtool_ops = {
630 .get_settings = etherh_get_settings,
631 .set_settings = etherh_set_settings,
632 .get_drvinfo = etherh_get_drvinfo,
633};
634
635static u32 etherh_regoffsets[16];
636static u32 etherm_regoffsets[16];
637
638static int __init
639etherh_probe(struct expansion_card *ec, const struct ecard_id *id)
640{
641 const struct etherh_data *data = id->data;
642 struct ei_device *ei_local;
643 struct net_device *dev;
644 struct etherh_priv *eh;
645 int i, ret;
646
647 etherh_banner();
648
649 ret = ecard_request_resources(ec);
650 if (ret)
651 goto out;
652
653 dev = __alloc_ei_netdev(sizeof(struct etherh_priv));
654 if (!dev) {
655 ret = -ENOMEM;
656 goto release;
657 }
658
659 SET_MODULE_OWNER(dev);
660 SET_NETDEV_DEV(dev, &ec->dev);
661
662 dev->open = etherh_open;
663 dev->stop = etherh_close;
664 dev->set_config = etherh_set_config;
665 dev->irq = ec->irq;
666 dev->ethtool_ops = &etherh_ethtool_ops;
667
668 if (data->supported & SUPPORTED_Autoneg)
669 dev->flags |= IFF_AUTOMEDIA;
670 if (data->supported & SUPPORTED_TP) {
671 dev->flags |= IFF_PORTSEL;
672 dev->if_port = IF_PORT_10BASET;
673 } else if (data->supported & SUPPORTED_BNC) {
674 dev->flags |= IFF_PORTSEL;
675 dev->if_port = IF_PORT_10BASE2;
676 } else
677 dev->if_port = IF_PORT_UNKNOWN;
678
679 eh = etherh_priv(dev);
680 eh->supported = data->supported;
681 eh->ctrl = 0;
682 eh->id = ec->cid.product;
683 eh->memc = ioremap(ecard_resource_start(ec, ECARD_RES_MEMC), PAGE_SIZE);
684 if (!eh->memc) {
685 ret = -ENOMEM;
686 goto free;
687 }
688
689 eh->ctrl_port = eh->memc;
690 if (data->ctrl_ioc) {
691 eh->ioc_fast = ioremap(ecard_resource_start(ec, ECARD_RES_IOCFAST), PAGE_SIZE);
692 if (!eh->ioc_fast) {
693 ret = -ENOMEM;
694 goto free;
695 }
696 eh->ctrl_port = eh->ioc_fast;
697 }
698
699 dev->base_addr = (unsigned long)eh->memc + data->ns8390_offset;
700 eh->dma_base = eh->memc + data->dataport_offset;
701 eh->ctrl_port += data->ctrlport_offset;
702
703 /*
704 * IRQ and control port handling - only for non-NIC slot cards.
705 */
706 if (ec->slot_no != 8) {
707 ec->ops = &etherh_ops;
708 ec->irq_data = eh;
709 } else {
710 /*
711 * If we're in the NIC slot, make sure the IRQ is enabled
712 */
713 etherh_set_ctrl(eh, ETHERH_CP_IE);
714 }
715
716 ei_local = netdev_priv(dev);
717 spin_lock_init(&ei_local->page_lock);
718
719 if (ec->cid.product == PROD_ANT_ETHERM) {
720 etherm_addr(dev->dev_addr);
721 ei_local->reg_offset = etherm_regoffsets;
722 } else {
723 etherh_addr(dev->dev_addr, ec);
724 ei_local->reg_offset = etherh_regoffsets;
725 }
726
727 ei_local->name = dev->name;
728 ei_local->word16 = 1;
729 ei_local->tx_start_page = data->tx_start_page;
730 ei_local->rx_start_page = ei_local->tx_start_page + TX_PAGES;
731 ei_local->stop_page = data->stop_page;
732 ei_local->reset_8390 = etherh_reset;
733 ei_local->block_input = etherh_block_input;
734 ei_local->block_output = etherh_block_output;
735 ei_local->get_8390_hdr = etherh_get_header;
736 ei_local->interface_num = 0;
737
738 etherh_reset(dev);
739 NS8390_init(dev, 0);
740
741 ret = register_netdev(dev);
742 if (ret)
743 goto free;
744
745 printk(KERN_INFO "%s: %s in slot %d, ",
746 dev->name, data->name, ec->slot_no);
747
748 for (i = 0; i < 6; i++)
749 printk("%2.2x%c", dev->dev_addr[i], i == 5 ? '\n' : ':');
750
751 ecard_set_drvdata(ec, dev);
752
753 return 0;
754
755 free:
756 if (eh->ioc_fast)
757 iounmap(eh->ioc_fast);
758 if (eh->memc)
759 iounmap(eh->memc);
760 free_netdev(dev);
761 release:
762 ecard_release_resources(ec);
763 out:
764 return ret;
765}
766
767static void __devexit etherh_remove(struct expansion_card *ec)
768{
769 struct net_device *dev = ecard_get_drvdata(ec);
770 struct etherh_priv *eh = etherh_priv(dev);
771
772 ecard_set_drvdata(ec, NULL);
773
774 unregister_netdev(dev);
775 ec->ops = NULL;
776
777 if (eh->ioc_fast)
778 iounmap(eh->ioc_fast);
779 iounmap(eh->memc);
780
781 free_netdev(dev);
782
783 ecard_release_resources(ec);
784}
785
786static struct etherh_data etherm_data = {
787 .ns8390_offset = ETHERM_NS8390,
788 .dataport_offset = ETHERM_NS8390 + ETHERM_DATAPORT,
789 .ctrlport_offset = ETHERM_NS8390 + ETHERM_CTRLPORT,
790 .name = "ANT EtherM",
791 .supported = SUPPORTED_10baseT_Half,
792 .tx_start_page = ETHERM_TX_START_PAGE,
793 .stop_page = ETHERM_STOP_PAGE,
794};
795
796static struct etherh_data etherlan500_data = {
797 .ns8390_offset = ETHERH500_NS8390,
798 .dataport_offset = ETHERH500_NS8390 + ETHERH500_DATAPORT,
799 .ctrlport_offset = ETHERH500_CTRLPORT,
800 .ctrl_ioc = 1,
801 .name = "i3 EtherH 500",
802 .supported = SUPPORTED_10baseT_Half,
803 .tx_start_page = ETHERH_TX_START_PAGE,
804 .stop_page = ETHERH_STOP_PAGE,
805};
806
807static struct etherh_data etherlan600_data = {
808 .ns8390_offset = ETHERH600_NS8390,
809 .dataport_offset = ETHERH600_NS8390 + ETHERH600_DATAPORT,
810 .ctrlport_offset = ETHERH600_NS8390 + ETHERH600_CTRLPORT,
811 .name = "i3 EtherH 600",
812 .supported = SUPPORTED_10baseT_Half | SUPPORTED_TP | SUPPORTED_BNC | SUPPORTED_Autoneg,
813 .tx_start_page = ETHERH_TX_START_PAGE,
814 .stop_page = ETHERH_STOP_PAGE,
815};
816
817static struct etherh_data etherlan600a_data = {
818 .ns8390_offset = ETHERH600_NS8390,
819 .dataport_offset = ETHERH600_NS8390 + ETHERH600_DATAPORT,
820 .ctrlport_offset = ETHERH600_NS8390 + ETHERH600_CTRLPORT,
821 .name = "i3 EtherH 600A",
822 .supported = SUPPORTED_10baseT_Half | SUPPORTED_TP | SUPPORTED_BNC | SUPPORTED_Autoneg,
823 .tx_start_page = ETHERH_TX_START_PAGE,
824 .stop_page = ETHERH_STOP_PAGE,
825};
826
827static const struct ecard_id etherh_ids[] = {
828 { MANU_ANT, PROD_ANT_ETHERM, &etherm_data },
829 { MANU_I3, PROD_I3_ETHERLAN500, &etherlan500_data },
830 { MANU_I3, PROD_I3_ETHERLAN600, &etherlan600_data },
831 { MANU_I3, PROD_I3_ETHERLAN600A, &etherlan600a_data },
832 { 0xffff, 0xffff }
833};
834
835static struct ecard_driver etherh_driver = {
836 .probe = etherh_probe,
837 .remove = __devexit_p(etherh_remove),
838 .id_table = etherh_ids,
839 .drv = {
840 .name = DRV_NAME,
841 },
842};
843
844static int __init etherh_init(void)
845{
846 int i;
847
848 for (i = 0; i < 16; i++) {
849 etherh_regoffsets[i] = i << 2;
850 etherm_regoffsets[i] = i << 5;
851 }
852
853 return ecard_register_driver(&etherh_driver);
854}
855
856static void __exit etherh_exit(void)
857{
858 ecard_remove_driver(&etherh_driver);
859}
860
861module_init(etherh_init);
862module_exit(etherh_exit);
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-10 10:55:44 -0500