blob: 3832fa4961dd6b3ba2a3806e236a07d0ad9c4f8b [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/* mac8390.c: New driver for 8390-based Nubus (or Nubus-alike)
2 Ethernet cards on Linux */
3/* Based on the former daynaport.c driver, by Alan Cox. Some code
4 taken from or inspired by skeleton.c by Donald Becker, acenic.c by
5 Jes Sorensen, and ne2k-pci.c by Donald Becker and Paul Gortmaker.
6
7 This software may be used and distributed according to the terms of
8 the GNU Public License, incorporated herein by reference. */
9
Jeff Garzik6aa20a22006-09-13 13:24:59 -040010/* 2000-02-28: support added for Dayna and Kinetics cards by
Linus Torvalds1da177e2005-04-16 15:20:36 -070011 A.G.deWijn@phys.uu.nl */
12/* 2000-04-04: support added for Dayna2 by bart@etpmod.phys.tue.nl */
13/* 2001-04-18: support for DaynaPort E/LC-M by rayk@knightsmanor.org */
14/* 2001-05-15: support for Cabletron ported from old daynaport driver
Jeff Garzik6aa20a22006-09-13 13:24:59 -040015 * and fixed access to Sonic Sys card which masquerades as a Farallon
Linus Torvalds1da177e2005-04-16 15:20:36 -070016 * by rayk@knightsmanor.org */
Finn Thain2964db02007-05-01 22:32:54 +020017/* 2002-12-30: Try to support more cards, some clues from NetBSD driver */
18/* 2003-12-26: Make sure Asante cards always work. */
Linus Torvalds1da177e2005-04-16 15:20:36 -070019
Joe Perches18c00192010-01-04 11:53:01 +000020#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
21
Linus Torvalds1da177e2005-04-16 15:20:36 -070022#include <linux/module.h>
23#include <linux/kernel.h>
24#include <linux/types.h>
25#include <linux/fcntl.h>
26#include <linux/interrupt.h>
27#include <linux/ptrace.h>
28#include <linux/ioport.h>
29#include <linux/nubus.h>
30#include <linux/in.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070031#include <linux/string.h>
32#include <linux/errno.h>
33#include <linux/init.h>
34#include <linux/netdevice.h>
35#include <linux/etherdevice.h>
36#include <linux/skbuff.h>
37#include <linux/bitops.h>
Joe Perches8e4d9692010-01-04 11:53:02 +000038#include <linux/io.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070039
40#include <asm/system.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070041#include <asm/dma.h>
42#include <asm/hwtest.h>
43#include <asm/macints.h>
44
Al Viro8c6270f2006-10-10 00:19:36 +010045static char version[] =
Joe Perches18c00192010-01-04 11:53:01 +000046 "v0.4 2001-05-15 David Huggins-Daines <dhd@debian.org> and others\n";
Al Viro8c6270f2006-10-10 00:19:36 +010047
48#define EI_SHIFT(x) (ei_local->reg_offset[x])
Joe Perches8e4d9692010-01-04 11:53:02 +000049#define ei_inb(port) in_8(port)
50#define ei_outb(val, port) out_8(port, val)
51#define ei_inb_p(port) in_8(port)
52#define ei_outb_p(val, port) out_8(port, val)
Al Viro8c6270f2006-10-10 00:19:36 +010053
54#include "lib8390.c"
Linus Torvalds1da177e2005-04-16 15:20:36 -070055
56#define WD_START_PG 0x00 /* First page of TX buffer */
57#define CABLETRON_RX_START_PG 0x00 /* First page of RX buffer */
58#define CABLETRON_RX_STOP_PG 0x30 /* Last page +1 of RX ring */
Joe Perches8e4d9692010-01-04 11:53:02 +000059#define CABLETRON_TX_START_PG CABLETRON_RX_STOP_PG
60 /* First page of TX buffer */
Linus Torvalds1da177e2005-04-16 15:20:36 -070061
Joe Perches8e4d9692010-01-04 11:53:02 +000062/*
63 * Unfortunately it seems we have to hardcode these for the moment
64 * Shouldn't the card know about this?
65 * Does anyone know where to read it off the card?
66 * Do we trust the data provided by the card?
67 */
Linus Torvalds1da177e2005-04-16 15:20:36 -070068
69#define DAYNA_8390_BASE 0x80000
70#define DAYNA_8390_MEM 0x00000
71
Jeff Garzik6aa20a22006-09-13 13:24:59 -040072#define CABLETRON_8390_BASE 0x90000
Linus Torvalds1da177e2005-04-16 15:20:36 -070073#define CABLETRON_8390_MEM 0x00000
74
Finn Thain2964db02007-05-01 22:32:54 +020075#define INTERLAN_8390_BASE 0xE0000
76#define INTERLAN_8390_MEM 0xD0000
77
Linus Torvalds1da177e2005-04-16 15:20:36 -070078enum mac8390_type {
79 MAC8390_NONE = -1,
80 MAC8390_APPLE,
81 MAC8390_ASANTE,
Finn Thain2964db02007-05-01 22:32:54 +020082 MAC8390_FARALLON,
Linus Torvalds1da177e2005-04-16 15:20:36 -070083 MAC8390_CABLETRON,
84 MAC8390_DAYNA,
85 MAC8390_INTERLAN,
86 MAC8390_KINETICS,
Linus Torvalds1da177e2005-04-16 15:20:36 -070087};
88
Joe Perches8e4d9692010-01-04 11:53:02 +000089static const char *cardname[] = {
Linus Torvalds1da177e2005-04-16 15:20:36 -070090 "apple",
91 "asante",
92 "farallon",
93 "cabletron",
94 "dayna",
95 "interlan",
96 "kinetics",
Linus Torvalds1da177e2005-04-16 15:20:36 -070097};
98
Joe Perches8e4d9692010-01-04 11:53:02 +000099static const int word16[] = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700100 1, /* apple */
101 1, /* asante */
102 1, /* farallon */
103 1, /* cabletron */
104 0, /* dayna */
105 1, /* interlan */
106 0, /* kinetics */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700107};
108
109/* on which cards do we use NuBus resources? */
Joe Perches8e4d9692010-01-04 11:53:02 +0000110static const int useresources[] = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700111 1, /* apple */
112 1, /* asante */
113 1, /* farallon */
114 0, /* cabletron */
115 0, /* dayna */
116 0, /* interlan */
117 0, /* kinetics */
Finn Thain2964db02007-05-01 22:32:54 +0200118};
119
120enum mac8390_access {
121 ACCESS_UNKNOWN = 0,
122 ACCESS_32,
123 ACCESS_16,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124};
125
Joe Perches8e4d9692010-01-04 11:53:02 +0000126extern int mac8390_memtest(struct net_device *dev);
127static int mac8390_initdev(struct net_device *dev, struct nubus_dev *ndev,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700128 enum mac8390_type type);
129
Joe Perches8e4d9692010-01-04 11:53:02 +0000130static int mac8390_open(struct net_device *dev);
131static int mac8390_close(struct net_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700132static void mac8390_no_reset(struct net_device *dev);
Finn Thain2964db02007-05-01 22:32:54 +0200133static void interlan_reset(struct net_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700134
Finn Thain2964db02007-05-01 22:32:54 +0200135/* Sane (32-bit chunk memory read/write) - Some Farallon and Apple do this*/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700136static void sane_get_8390_hdr(struct net_device *dev,
137 struct e8390_pkt_hdr *hdr, int ring_page);
Joe Perches8e4d9692010-01-04 11:53:02 +0000138static void sane_block_input(struct net_device *dev, int count,
139 struct sk_buff *skb, int ring_offset);
140static void sane_block_output(struct net_device *dev, int count,
141 const unsigned char *buf, const int start_page);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700142
143/* dayna_memcpy to and from card */
144static void dayna_memcpy_fromcard(struct net_device *dev, void *to,
145 int from, int count);
146static void dayna_memcpy_tocard(struct net_device *dev, int to,
147 const void *from, int count);
148
149/* Dayna - Dayna/Kinetics use this */
150static void dayna_get_8390_hdr(struct net_device *dev,
151 struct e8390_pkt_hdr *hdr, int ring_page);
152static void dayna_block_input(struct net_device *dev, int count,
153 struct sk_buff *skb, int ring_offset);
154static void dayna_block_output(struct net_device *dev, int count,
155 const unsigned char *buf, int start_page);
156
Joe Perches8e4d9692010-01-04 11:53:02 +0000157#define memcpy_fromio(a, b, c) memcpy((a), (void *)(b), (c))
158#define memcpy_toio(a, b, c) memcpy((void *)(a), (b), (c))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700159
Geert Uytterhoeven7e364e92010-06-02 07:36:20 +0000160#define memcmp_withio(a, b, c) memcmp((a), (void *)(b), (c))
161
Linus Torvalds1da177e2005-04-16 15:20:36 -0700162/* Slow Sane (16-bit chunk memory read/write) Cabletron uses this */
163static void slow_sane_get_8390_hdr(struct net_device *dev,
164 struct e8390_pkt_hdr *hdr, int ring_page);
165static void slow_sane_block_input(struct net_device *dev, int count,
166 struct sk_buff *skb, int ring_offset);
167static void slow_sane_block_output(struct net_device *dev, int count,
168 const unsigned char *buf, int start_page);
Geert Uytterhoeven7e364e92010-06-02 07:36:20 +0000169static void word_memcpy_tocard(unsigned long tp, const void *fp, int count);
170static void word_memcpy_fromcard(void *tp, unsigned long fp, int count);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700171
Adrian Bunk909fa882008-06-10 01:23:39 +0300172static enum mac8390_type __init mac8390_ident(struct nubus_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700173{
Finn Thain2964db02007-05-01 22:32:54 +0200174 switch (dev->dr_sw) {
Joe Perches35076402010-01-04 11:52:59 +0000175 case NUBUS_DRSW_3COM:
176 switch (dev->dr_hw) {
177 case NUBUS_DRHW_APPLE_SONIC_NB:
178 case NUBUS_DRHW_APPLE_SONIC_LC:
179 case NUBUS_DRHW_SONNET:
180 return MAC8390_NONE;
Finn Thain2964db02007-05-01 22:32:54 +0200181 break;
Joe Perches35076402010-01-04 11:52:59 +0000182 default:
183 return MAC8390_APPLE;
184 break;
185 }
186 break;
Finn Thain2964db02007-05-01 22:32:54 +0200187
Joe Perches35076402010-01-04 11:52:59 +0000188 case NUBUS_DRSW_APPLE:
189 switch (dev->dr_hw) {
190 case NUBUS_DRHW_ASANTE_LC:
191 return MAC8390_NONE;
Finn Thain2964db02007-05-01 22:32:54 +0200192 break;
Joe Perches35076402010-01-04 11:52:59 +0000193 case NUBUS_DRHW_CABLETRON:
194 return MAC8390_CABLETRON;
195 break;
196 default:
197 return MAC8390_APPLE;
198 break;
199 }
200 break;
Finn Thain2964db02007-05-01 22:32:54 +0200201
Joe Perches35076402010-01-04 11:52:59 +0000202 case NUBUS_DRSW_ASANTE:
203 return MAC8390_ASANTE;
204 break;
Finn Thain2964db02007-05-01 22:32:54 +0200205
Joe Perches35076402010-01-04 11:52:59 +0000206 case NUBUS_DRSW_TECHWORKS:
207 case NUBUS_DRSW_DAYNA2:
208 case NUBUS_DRSW_DAYNA_LC:
209 if (dev->dr_hw == NUBUS_DRHW_CABLETRON)
210 return MAC8390_CABLETRON;
211 else
212 return MAC8390_APPLE;
213 break;
Finn Thain2964db02007-05-01 22:32:54 +0200214
Joe Perches35076402010-01-04 11:52:59 +0000215 case NUBUS_DRSW_FARALLON:
216 return MAC8390_FARALLON;
217 break;
Finn Thain2964db02007-05-01 22:32:54 +0200218
Joe Perches35076402010-01-04 11:52:59 +0000219 case NUBUS_DRSW_KINETICS:
220 switch (dev->dr_hw) {
221 case NUBUS_DRHW_INTERLAN:
222 return MAC8390_INTERLAN;
Finn Thain2964db02007-05-01 22:32:54 +0200223 break;
Joe Perches35076402010-01-04 11:52:59 +0000224 default:
225 return MAC8390_KINETICS;
226 break;
227 }
228 break;
Finn Thain2964db02007-05-01 22:32:54 +0200229
Joe Perches35076402010-01-04 11:52:59 +0000230 case NUBUS_DRSW_DAYNA:
Joe Perches8e4d9692010-01-04 11:53:02 +0000231 /*
232 * These correspond to Dayna Sonic cards
233 * which use the macsonic driver
234 */
Joe Perches35076402010-01-04 11:52:59 +0000235 if (dev->dr_hw == NUBUS_DRHW_SMC9194 ||
Joe Perches8e4d9692010-01-04 11:53:02 +0000236 dev->dr_hw == NUBUS_DRHW_INTERLAN)
Joe Perches35076402010-01-04 11:52:59 +0000237 return MAC8390_NONE;
238 else
239 return MAC8390_DAYNA;
240 break;
Finn Thain2964db02007-05-01 22:32:54 +0200241 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700242 return MAC8390_NONE;
243}
244
Adrian Bunk909fa882008-06-10 01:23:39 +0300245static enum mac8390_access __init mac8390_testio(volatile unsigned long membase)
Finn Thain2964db02007-05-01 22:32:54 +0200246{
247 unsigned long outdata = 0xA5A0B5B0;
248 unsigned long indata = 0x00000000;
249 /* Try writing 32 bits */
Geert Uytterhoeven7e364e92010-06-02 07:36:20 +0000250 memcpy_toio(membase, &outdata, 4);
Finn Thain2964db02007-05-01 22:32:54 +0200251 /* Now compare them */
Geert Uytterhoeven7e364e92010-06-02 07:36:20 +0000252 if (memcmp_withio(&outdata, membase, 4) == 0)
Finn Thain2964db02007-05-01 22:32:54 +0200253 return ACCESS_32;
254 /* Write 16 bit output */
Joe Perches5c7fffd2010-01-04 11:53:00 +0000255 word_memcpy_tocard(membase, &outdata, 4);
Finn Thain2964db02007-05-01 22:32:54 +0200256 /* Now read it back */
Joe Perches5c7fffd2010-01-04 11:53:00 +0000257 word_memcpy_fromcard(&indata, membase, 4);
Finn Thain2964db02007-05-01 22:32:54 +0200258 if (outdata == indata)
259 return ACCESS_16;
260 return ACCESS_UNKNOWN;
261}
262
Adrian Bunk909fa882008-06-10 01:23:39 +0300263static int __init mac8390_memsize(unsigned long membase)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700264{
265 unsigned long flags;
266 int i, j;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400267
Linus Torvalds1da177e2005-04-16 15:20:36 -0700268 local_irq_save(flags);
269 /* Check up to 32K in 4K increments */
270 for (i = 0; i < 8; i++) {
Joe Perches8e4d9692010-01-04 11:53:02 +0000271 volatile unsigned short *m = (unsigned short *)(membase + (i * 0x1000));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700272
273 /* Unwriteable - we have a fully decoded card and the
274 RAM end located */
275 if (hwreg_present(m) == 0)
276 break;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400277
Linus Torvalds1da177e2005-04-16 15:20:36 -0700278 /* write a distinctive byte */
279 *m = 0xA5A0 | i;
280 /* check that we read back what we wrote */
281 if (*m != (0xA5A0 | i))
282 break;
283
284 /* check for partial decode and wrap */
285 for (j = 0; j < i; j++) {
Joe Perches8e4d9692010-01-04 11:53:02 +0000286 volatile unsigned short *p = (unsigned short *)(membase + (j * 0x1000));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700287 if (*p != (0xA5A0 | j))
288 break;
Joe Perches8e4d9692010-01-04 11:53:02 +0000289 }
290 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700291 local_irq_restore(flags);
Joe Perches8e4d9692010-01-04 11:53:02 +0000292 /*
293 * in any case, we stopped once we tried one block too many,
294 * or once we reached 32K
295 */
296 return i * 0x1000;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700297}
298
Joe Perchesf6de7ac2010-01-04 11:53:03 +0000299static bool __init mac8390_init(struct net_device *dev, struct nubus_dev *ndev,
300 enum mac8390_type cardtype)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700301{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700302 struct nubus_dir dir;
303 struct nubus_dirent ent;
304 int offset;
Joe Perchesf6de7ac2010-01-04 11:53:03 +0000305 volatile unsigned short *i;
306
Geert Uytterhoeven51f53002010-01-09 23:00:32 -0800307 printk_once(KERN_INFO pr_fmt("%s"), version);
Joe Perchesf6de7ac2010-01-04 11:53:03 +0000308
309 dev->irq = SLOT2IRQ(ndev->board->slot);
310 /* This is getting to be a habit */
311 dev->base_addr = (ndev->board->slot_addr |
312 ((ndev->board->slot & 0xf) << 20));
313
314 /*
315 * Get some Nubus info - we will trust the card's idea
316 * of where its memory and registers are.
317 */
318
319 if (nubus_get_func_dir(ndev, &dir) == -1) {
320 pr_err("%s: Unable to get Nubus functional directory for slot %X!\n",
321 dev->name, ndev->board->slot);
322 return false;
323 }
324
325 /* Get the MAC address */
326 if (nubus_find_rsrc(&dir, NUBUS_RESID_MAC_ADDRESS, &ent) == -1) {
327 pr_info("%s: Couldn't get MAC address!\n", dev->name);
328 return false;
329 }
330
331 nubus_get_rsrc_mem(dev->dev_addr, &ent, 6);
332
333 if (useresources[cardtype] == 1) {
334 nubus_rewinddir(&dir);
335 if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_BASEOS,
336 &ent) == -1) {
337 pr_err("%s: Memory offset resource for slot %X not found!\n",
338 dev->name, ndev->board->slot);
339 return false;
340 }
341 nubus_get_rsrc_mem(&offset, &ent, 4);
342 dev->mem_start = dev->base_addr + offset;
343 /* yes, this is how the Apple driver does it */
344 dev->base_addr = dev->mem_start + 0x10000;
345 nubus_rewinddir(&dir);
346 if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_LENGTH,
347 &ent) == -1) {
348 pr_info("%s: Memory length resource for slot %X not found, probing\n",
349 dev->name, ndev->board->slot);
350 offset = mac8390_memsize(dev->mem_start);
351 } else {
352 nubus_get_rsrc_mem(&offset, &ent, 4);
353 }
354 dev->mem_end = dev->mem_start + offset;
355 } else {
356 switch (cardtype) {
357 case MAC8390_KINETICS:
358 case MAC8390_DAYNA: /* it's the same */
359 dev->base_addr = (int)(ndev->board->slot_addr +
360 DAYNA_8390_BASE);
361 dev->mem_start = (int)(ndev->board->slot_addr +
362 DAYNA_8390_MEM);
363 dev->mem_end = dev->mem_start +
364 mac8390_memsize(dev->mem_start);
365 break;
366 case MAC8390_INTERLAN:
367 dev->base_addr = (int)(ndev->board->slot_addr +
368 INTERLAN_8390_BASE);
369 dev->mem_start = (int)(ndev->board->slot_addr +
370 INTERLAN_8390_MEM);
371 dev->mem_end = dev->mem_start +
372 mac8390_memsize(dev->mem_start);
373 break;
374 case MAC8390_CABLETRON:
375 dev->base_addr = (int)(ndev->board->slot_addr +
376 CABLETRON_8390_BASE);
377 dev->mem_start = (int)(ndev->board->slot_addr +
378 CABLETRON_8390_MEM);
379 /* The base address is unreadable if 0x00
380 * has been written to the command register
381 * Reset the chip by writing E8390_NODMA +
382 * E8390_PAGE0 + E8390_STOP just to be
383 * sure
384 */
385 i = (void *)dev->base_addr;
386 *i = 0x21;
387 dev->mem_end = dev->mem_start +
388 mac8390_memsize(dev->mem_start);
389 break;
390
391 default:
392 pr_err("Card type %s is unsupported, sorry\n",
393 ndev->board->name);
394 return false;
395 }
396 }
397
398 return true;
399}
400
401struct net_device * __init mac8390_probe(int unit)
402{
403 struct net_device *dev;
404 struct nubus_dev *ndev = NULL;
405 int err = -ENODEV;
406
Linus Torvalds1da177e2005-04-16 15:20:36 -0700407 static unsigned int slots;
408
409 enum mac8390_type cardtype;
410
411 /* probably should check for Nubus instead */
412
413 if (!MACH_IS_MAC)
414 return ERR_PTR(-ENODEV);
415
Finn Thain217cbfa2009-05-25 22:43:49 -0700416 dev = ____alloc_ei_netdev(0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700417 if (!dev)
418 return ERR_PTR(-ENOMEM);
419
420 if (unit >= 0)
421 sprintf(dev->name, "eth%d", unit);
422
Joe Perches8e4d9692010-01-04 11:53:02 +0000423 while ((ndev = nubus_find_type(NUBUS_CAT_NETWORK, NUBUS_TYPE_ETHERNET,
424 ndev))) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700425 /* Have we seen it already? */
Joe Perchesf6de7ac2010-01-04 11:53:03 +0000426 if (slots & (1 << ndev->board->slot))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700427 continue;
Joe Perchesf6de7ac2010-01-04 11:53:03 +0000428 slots |= 1 << ndev->board->slot;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700429
Joe Perches8e4d9692010-01-04 11:53:02 +0000430 cardtype = mac8390_ident(ndev);
431 if (cardtype == MAC8390_NONE)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700432 continue;
433
Joe Perchesf6de7ac2010-01-04 11:53:03 +0000434 if (!mac8390_init(dev, ndev, cardtype))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700435 continue;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700436
437 /* Do the nasty 8390 stuff */
438 if (!mac8390_initdev(dev, ndev, cardtype))
439 break;
440 }
441
442 if (!ndev)
443 goto out;
444 err = register_netdev(dev);
445 if (err)
446 goto out;
447 return dev;
448
449out:
450 free_netdev(dev);
451 return ERR_PTR(err);
452}
453
454#ifdef MODULE
455MODULE_AUTHOR("David Huggins-Daines <dhd@debian.org> and others");
456MODULE_DESCRIPTION("Macintosh NS8390-based Nubus Ethernet driver");
457MODULE_LICENSE("GPL");
458
459/* overkill, of course */
460static struct net_device *dev_mac8390[15];
461int init_module(void)
462{
463 int i;
464 for (i = 0; i < 15; i++) {
465 struct net_device *dev = mac8390_probe(-1);
466 if (IS_ERR(dev))
467 break;
468 dev_mac890[i] = dev;
469 }
470 if (!i) {
Joe Perches18c00192010-01-04 11:53:01 +0000471 pr_notice("No useable cards found, driver NOT installed.\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700472 return -ENODEV;
473 }
474 return 0;
475}
476
477void cleanup_module(void)
478{
479 int i;
480 for (i = 0; i < 15; i++) {
481 struct net_device *dev = dev_mac890[i];
482 if (dev) {
483 unregister_netdev(dev);
484 free_netdev(dev);
485 }
486 }
487}
488
489#endif /* MODULE */
490
Stephen Hemmingerca175842008-12-02 15:00:28 -0800491static const struct net_device_ops mac8390_netdev_ops = {
492 .ndo_open = mac8390_open,
493 .ndo_stop = mac8390_close,
Finn Thain217cbfa2009-05-25 22:43:49 -0700494 .ndo_start_xmit = __ei_start_xmit,
495 .ndo_tx_timeout = __ei_tx_timeout,
496 .ndo_get_stats = __ei_get_stats,
497 .ndo_set_multicast_list = __ei_set_multicast_list,
Stephen Hemmingerca175842008-12-02 15:00:28 -0800498 .ndo_validate_addr = eth_validate_addr,
Stephen Hemmingerfe96aaa2009-01-09 11:13:14 +0000499 .ndo_set_mac_address = eth_mac_addr,
Stephen Hemmingerca175842008-12-02 15:00:28 -0800500 .ndo_change_mtu = eth_change_mtu,
501#ifdef CONFIG_NET_POLL_CONTROLLER
Finn Thain4e0168f2009-05-28 02:05:53 +0000502 .ndo_poll_controller = __ei_poll,
Stephen Hemmingerca175842008-12-02 15:00:28 -0800503#endif
504};
505
Joe Perches8e4d9692010-01-04 11:53:02 +0000506static int __init mac8390_initdev(struct net_device *dev,
507 struct nubus_dev *ndev,
508 enum mac8390_type type)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700509{
Joe Perches8e4d9692010-01-04 11:53:02 +0000510 static u32 fwrd4_offsets[16] = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700511 0, 4, 8, 12,
512 16, 20, 24, 28,
513 32, 36, 40, 44,
514 48, 52, 56, 60
515 };
Joe Perches8e4d9692010-01-04 11:53:02 +0000516 static u32 back4_offsets[16] = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700517 60, 56, 52, 48,
518 44, 40, 36, 32,
519 28, 24, 20, 16,
520 12, 8, 4, 0
521 };
Joe Perches8e4d9692010-01-04 11:53:02 +0000522 static u32 fwrd2_offsets[16] = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700523 0, 2, 4, 6,
524 8, 10, 12, 14,
525 16, 18, 20, 22,
526 24, 26, 28, 30
527 };
528
Finn Thain2964db02007-05-01 22:32:54 +0200529 int access_bitmode = 0;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400530
Linus Torvalds1da177e2005-04-16 15:20:36 -0700531 /* Now fill in our stuff */
Stephen Hemmingerca175842008-12-02 15:00:28 -0800532 dev->netdev_ops = &mac8390_netdev_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700533
534 /* GAR, ei_status is actually a macro even though it looks global */
535 ei_status.name = cardname[type];
536 ei_status.word16 = word16[type];
537
538 /* Cabletron's TX/RX buffers are backwards */
539 if (type == MAC8390_CABLETRON) {
Joe Perches8e4d9692010-01-04 11:53:02 +0000540 ei_status.tx_start_page = CABLETRON_TX_START_PG;
541 ei_status.rx_start_page = CABLETRON_RX_START_PG;
542 ei_status.stop_page = CABLETRON_RX_STOP_PG;
543 ei_status.rmem_start = dev->mem_start;
544 ei_status.rmem_end = dev->mem_start + CABLETRON_RX_STOP_PG*256;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700545 } else {
Joe Perches8e4d9692010-01-04 11:53:02 +0000546 ei_status.tx_start_page = WD_START_PG;
547 ei_status.rx_start_page = WD_START_PG + TX_PAGES;
548 ei_status.stop_page = (dev->mem_end - dev->mem_start)/256;
549 ei_status.rmem_start = dev->mem_start + TX_PAGES*256;
550 ei_status.rmem_end = dev->mem_end;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700551 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400552
Linus Torvalds1da177e2005-04-16 15:20:36 -0700553 /* Fill in model-specific information and functions */
Joe Perches35076402010-01-04 11:52:59 +0000554 switch (type) {
Finn Thain2964db02007-05-01 22:32:54 +0200555 case MAC8390_FARALLON:
556 case MAC8390_APPLE:
Joe Perches35076402010-01-04 11:52:59 +0000557 switch (mac8390_testio(dev->mem_start)) {
558 case ACCESS_UNKNOWN:
Finn Thaind92222e2010-06-02 07:06:34 -0700559 pr_err("Don't know how to access card memory!\n");
Joe Perches35076402010-01-04 11:52:59 +0000560 return -ENODEV;
561 break;
Finn Thain2964db02007-05-01 22:32:54 +0200562
Joe Perches35076402010-01-04 11:52:59 +0000563 case ACCESS_16:
564 /* 16 bit card, register map is reversed */
565 ei_status.reset_8390 = &mac8390_no_reset;
566 ei_status.block_input = &slow_sane_block_input;
567 ei_status.block_output = &slow_sane_block_output;
568 ei_status.get_8390_hdr = &slow_sane_get_8390_hdr;
569 ei_status.reg_offset = back4_offsets;
570 break;
Finn Thain2964db02007-05-01 22:32:54 +0200571
Joe Perches35076402010-01-04 11:52:59 +0000572 case ACCESS_32:
573 /* 32 bit card, register map is reversed */
574 ei_status.reset_8390 = &mac8390_no_reset;
575 ei_status.block_input = &sane_block_input;
576 ei_status.block_output = &sane_block_output;
577 ei_status.get_8390_hdr = &sane_get_8390_hdr;
578 ei_status.reg_offset = back4_offsets;
579 access_bitmode = 1;
580 break;
Finn Thain2964db02007-05-01 22:32:54 +0200581 }
582 break;
583
584 case MAC8390_ASANTE:
585 /* Some Asante cards pass the 32 bit test
586 * but overwrite system memory when run at 32 bit.
587 * so we run them all at 16 bit.
588 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700589 ei_status.reset_8390 = &mac8390_no_reset;
590 ei_status.block_input = &slow_sane_block_input;
591 ei_status.block_output = &slow_sane_block_output;
592 ei_status.get_8390_hdr = &slow_sane_get_8390_hdr;
593 ei_status.reg_offset = back4_offsets;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700594 break;
Finn Thain2964db02007-05-01 22:32:54 +0200595
Linus Torvalds1da177e2005-04-16 15:20:36 -0700596 case MAC8390_CABLETRON:
597 /* 16 bit card, register map is short forward */
598 ei_status.reset_8390 = &mac8390_no_reset;
599 ei_status.block_input = &slow_sane_block_input;
600 ei_status.block_output = &slow_sane_block_output;
601 ei_status.get_8390_hdr = &slow_sane_get_8390_hdr;
602 ei_status.reg_offset = fwrd2_offsets;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700603 break;
Finn Thain2964db02007-05-01 22:32:54 +0200604
Linus Torvalds1da177e2005-04-16 15:20:36 -0700605 case MAC8390_DAYNA:
606 case MAC8390_KINETICS:
Finn Thain2964db02007-05-01 22:32:54 +0200607 /* 16 bit memory, register map is forward */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700608 /* dayna and similar */
609 ei_status.reset_8390 = &mac8390_no_reset;
610 ei_status.block_input = &dayna_block_input;
611 ei_status.block_output = &dayna_block_output;
612 ei_status.get_8390_hdr = &dayna_get_8390_hdr;
613 ei_status.reg_offset = fwrd4_offsets;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700614 break;
Finn Thain2964db02007-05-01 22:32:54 +0200615
616 case MAC8390_INTERLAN:
617 /* 16 bit memory, register map is forward */
618 ei_status.reset_8390 = &interlan_reset;
619 ei_status.block_input = &slow_sane_block_input;
620 ei_status.block_output = &slow_sane_block_output;
621 ei_status.get_8390_hdr = &slow_sane_get_8390_hdr;
Joe Perches8e4d9692010-01-04 11:53:02 +0000622 ei_status.reg_offset = fwrd4_offsets;
623 break;
Finn Thain2964db02007-05-01 22:32:54 +0200624
Linus Torvalds1da177e2005-04-16 15:20:36 -0700625 default:
Joe Perches18c00192010-01-04 11:53:01 +0000626 pr_err("Card type %s is unsupported, sorry\n",
627 ndev->board->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700628 return -ENODEV;
629 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400630
Al Viro8c6270f2006-10-10 00:19:36 +0100631 __NS8390_init(dev, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700632
633 /* Good, done, now spit out some messages */
Joe Perches18c00192010-01-04 11:53:01 +0000634 pr_info("%s: %s in slot %X (type %s)\n",
635 dev->name, ndev->board->name, ndev->board->slot,
636 cardname[type]);
637 pr_info("MAC %pM IRQ %d, %d KB shared memory at %#lx, %d-bit access.\n",
638 dev->dev_addr, dev->irq,
639 (unsigned int)(dev->mem_end - dev->mem_start) >> 10,
640 dev->mem_start, access_bitmode ? 32 : 16);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700641 return 0;
642}
643
644static int mac8390_open(struct net_device *dev)
645{
Finn Thain38454db2010-06-01 02:18:32 +0000646 int err;
647
Al Viro8c6270f2006-10-10 00:19:36 +0100648 __ei_open(dev);
Finn Thain38454db2010-06-01 02:18:32 +0000649 err = request_irq(dev->irq, __ei_interrupt, 0, "8390 Ethernet", dev);
650 if (err)
Finn Thaind92222e2010-06-02 07:06:34 -0700651 pr_err("%s: unable to get IRQ %d\n", dev->name, dev->irq);
Finn Thain38454db2010-06-01 02:18:32 +0000652 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700653}
654
655static int mac8390_close(struct net_device *dev)
656{
657 free_irq(dev->irq, dev);
Al Viro8c6270f2006-10-10 00:19:36 +0100658 __ei_close(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700659 return 0;
660}
661
662static void mac8390_no_reset(struct net_device *dev)
663{
664 ei_status.txing = 0;
665 if (ei_debug > 1)
Joe Perches18c00192010-01-04 11:53:01 +0000666 pr_info("reset not supported\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700667}
668
Finn Thain2964db02007-05-01 22:32:54 +0200669static void interlan_reset(struct net_device *dev)
670{
Joe Perches8e4d9692010-01-04 11:53:02 +0000671 unsigned char *target = nubus_slot_addr(IRQ2SLOT(dev->irq));
Finn Thain2964db02007-05-01 22:32:54 +0200672 if (ei_debug > 1)
Joe Perches18c00192010-01-04 11:53:01 +0000673 pr_info("Need to reset the NS8390 t=%lu...", jiffies);
Finn Thain2964db02007-05-01 22:32:54 +0200674 ei_status.txing = 0;
675 target[0xC0000] = 0;
676 if (ei_debug > 1)
Joe Perches18c00192010-01-04 11:53:01 +0000677 pr_cont("reset complete\n");
Finn Thain2964db02007-05-01 22:32:54 +0200678}
679
Linus Torvalds1da177e2005-04-16 15:20:36 -0700680/* dayna_memcpy_fromio/dayna_memcpy_toio */
681/* directly from daynaport.c by Alan Cox */
Joe Perches8e4d9692010-01-04 11:53:02 +0000682static void dayna_memcpy_fromcard(struct net_device *dev, void *to, int from,
683 int count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700684{
Al Viro09cc07a2006-01-12 01:06:21 -0800685 volatile unsigned char *ptr;
Joe Perches8e4d9692010-01-04 11:53:02 +0000686 unsigned char *target = to;
687 from <<= 1; /* word, skip overhead */
688 ptr = (unsigned char *)(dev->mem_start+from);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700689 /* Leading byte? */
Joe Perches8e4d9692010-01-04 11:53:02 +0000690 if (from & 2) {
Al Viro09cc07a2006-01-12 01:06:21 -0800691 *target++ = ptr[-1];
692 ptr += 2;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700693 count--;
694 }
Joe Perches8e4d9692010-01-04 11:53:02 +0000695 while (count >= 2) {
Al Viro09cc07a2006-01-12 01:06:21 -0800696 *(unsigned short *)target = *(unsigned short volatile *)ptr;
697 ptr += 4; /* skip cruft */
698 target += 2;
Joe Perches8e4d9692010-01-04 11:53:02 +0000699 count -= 2;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700700 }
701 /* Trailing byte? */
Joe Perches8e4d9692010-01-04 11:53:02 +0000702 if (count)
Al Viro09cc07a2006-01-12 01:06:21 -0800703 *target = *ptr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700704}
705
Joe Perches8e4d9692010-01-04 11:53:02 +0000706static void dayna_memcpy_tocard(struct net_device *dev, int to,
707 const void *from, int count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700708{
709 volatile unsigned short *ptr;
Joe Perches8e4d9692010-01-04 11:53:02 +0000710 const unsigned char *src = from;
711 to <<= 1; /* word, skip overhead */
712 ptr = (unsigned short *)(dev->mem_start+to);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700713 /* Leading byte? */
Joe Perches8e4d9692010-01-04 11:53:02 +0000714 if (to & 2) { /* avoid a byte write (stomps on other data) */
Al Viro09cc07a2006-01-12 01:06:21 -0800715 ptr[-1] = (ptr[-1]&0xFF00)|*src++;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700716 ptr++;
717 count--;
718 }
Joe Perches8e4d9692010-01-04 11:53:02 +0000719 while (count >= 2) {
720 *ptr++ = *(unsigned short *)src; /* Copy and */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700721 ptr++; /* skip cruft */
Al Viro09cc07a2006-01-12 01:06:21 -0800722 src += 2;
Joe Perches8e4d9692010-01-04 11:53:02 +0000723 count -= 2;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700724 }
725 /* Trailing byte? */
Joe Perches8e4d9692010-01-04 11:53:02 +0000726 if (count) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700727 /* card doesn't like byte writes */
Joe Perches8e4d9692010-01-04 11:53:02 +0000728 *ptr = (*ptr & 0x00FF) | (*src << 8);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700729 }
730}
731
732/* sane block input/output */
733static void sane_get_8390_hdr(struct net_device *dev,
734 struct e8390_pkt_hdr *hdr, int ring_page)
735{
736 unsigned long hdr_start = (ring_page - WD_START_PG)<<8;
Geert Uytterhoeven7e364e92010-06-02 07:36:20 +0000737 memcpy_fromio(hdr, dev->mem_start + hdr_start, 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700738 /* Fix endianness */
739 hdr->count = swab16(hdr->count);
740}
741
742static void sane_block_input(struct net_device *dev, int count,
743 struct sk_buff *skb, int ring_offset)
744{
745 unsigned long xfer_base = ring_offset - (WD_START_PG<<8);
746 unsigned long xfer_start = xfer_base + dev->mem_start;
747
748 if (xfer_start + count > ei_status.rmem_end) {
749 /* We must wrap the input move. */
750 int semi_count = ei_status.rmem_end - xfer_start;
Geert Uytterhoeven7e364e92010-06-02 07:36:20 +0000751 memcpy_fromio(skb->data, dev->mem_start + xfer_base,
Joe Perches8e4d9692010-01-04 11:53:02 +0000752 semi_count);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700753 count -= semi_count;
Geert Uytterhoeven7e364e92010-06-02 07:36:20 +0000754 memcpy_fromio(skb->data + semi_count, ei_status.rmem_start,
Joe Perches8e4d9692010-01-04 11:53:02 +0000755 count);
Geert Uytterhoeven7e364e92010-06-02 07:36:20 +0000756 } else {
757 memcpy_fromio(skb->data, dev->mem_start + xfer_base, count);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700758 }
759}
760
761static void sane_block_output(struct net_device *dev, int count,
762 const unsigned char *buf, int start_page)
763{
764 long shmem = (start_page - WD_START_PG)<<8;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400765
Geert Uytterhoeven7e364e92010-06-02 07:36:20 +0000766 memcpy_toio(dev->mem_start + shmem, buf, count);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700767}
768
769/* dayna block input/output */
Joe Perches8e4d9692010-01-04 11:53:02 +0000770static void dayna_get_8390_hdr(struct net_device *dev,
771 struct e8390_pkt_hdr *hdr, int ring_page)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700772{
773 unsigned long hdr_start = (ring_page - WD_START_PG)<<8;
774
Joe Perches5c7fffd2010-01-04 11:53:00 +0000775 dayna_memcpy_fromcard(dev, hdr, hdr_start, 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700776 /* Fix endianness */
Joe Perches8e4d9692010-01-04 11:53:02 +0000777 hdr->count = (hdr->count & 0xFF) << 8 | (hdr->count >> 8);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700778}
779
Joe Perches8e4d9692010-01-04 11:53:02 +0000780static void dayna_block_input(struct net_device *dev, int count,
781 struct sk_buff *skb, int ring_offset)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700782{
783 unsigned long xfer_base = ring_offset - (WD_START_PG<<8);
784 unsigned long xfer_start = xfer_base+dev->mem_start;
785
786 /* Note the offset math is done in card memory space which is word
787 per long onto our space. */
788
Joe Perches8e4d9692010-01-04 11:53:02 +0000789 if (xfer_start + count > ei_status.rmem_end) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700790 /* We must wrap the input move. */
791 int semi_count = ei_status.rmem_end - xfer_start;
792 dayna_memcpy_fromcard(dev, skb->data, xfer_base, semi_count);
793 count -= semi_count;
794 dayna_memcpy_fromcard(dev, skb->data + semi_count,
795 ei_status.rmem_start - dev->mem_start,
796 count);
Joe Perches8e4d9692010-01-04 11:53:02 +0000797 } else {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700798 dayna_memcpy_fromcard(dev, skb->data, xfer_base, count);
799 }
800}
801
Joe Perches8e4d9692010-01-04 11:53:02 +0000802static void dayna_block_output(struct net_device *dev, int count,
803 const unsigned char *buf,
804 int start_page)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700805{
806 long shmem = (start_page - WD_START_PG)<<8;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400807
Linus Torvalds1da177e2005-04-16 15:20:36 -0700808 dayna_memcpy_tocard(dev, shmem, buf, count);
809}
810
811/* Cabletron block I/O */
Joe Perches8e4d9692010-01-04 11:53:02 +0000812static void slow_sane_get_8390_hdr(struct net_device *dev,
813 struct e8390_pkt_hdr *hdr,
814 int ring_page)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700815{
816 unsigned long hdr_start = (ring_page - WD_START_PG)<<8;
Geert Uytterhoeven7e364e92010-06-02 07:36:20 +0000817 word_memcpy_fromcard(hdr, dev->mem_start + hdr_start, 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700818 /* Register endianism - fix here rather than 8390.c */
819 hdr->count = (hdr->count&0xFF)<<8|(hdr->count>>8);
820}
821
Joe Perches8e4d9692010-01-04 11:53:02 +0000822static void slow_sane_block_input(struct net_device *dev, int count,
823 struct sk_buff *skb, int ring_offset)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700824{
825 unsigned long xfer_base = ring_offset - (WD_START_PG<<8);
826 unsigned long xfer_start = xfer_base+dev->mem_start;
827
Joe Perches8e4d9692010-01-04 11:53:02 +0000828 if (xfer_start + count > ei_status.rmem_end) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700829 /* We must wrap the input move. */
830 int semi_count = ei_status.rmem_end - xfer_start;
Geert Uytterhoeven7e364e92010-06-02 07:36:20 +0000831 word_memcpy_fromcard(skb->data, dev->mem_start + xfer_base,
Joe Perches5c7fffd2010-01-04 11:53:00 +0000832 semi_count);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700833 count -= semi_count;
834 word_memcpy_fromcard(skb->data + semi_count,
Geert Uytterhoeven7e364e92010-06-02 07:36:20 +0000835 ei_status.rmem_start, count);
Joe Perches8e4d9692010-01-04 11:53:02 +0000836 } else {
Geert Uytterhoeven7e364e92010-06-02 07:36:20 +0000837 word_memcpy_fromcard(skb->data, dev->mem_start + xfer_base,
838 count);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700839 }
840}
841
Joe Perches8e4d9692010-01-04 11:53:02 +0000842static void slow_sane_block_output(struct net_device *dev, int count,
843 const unsigned char *buf, int start_page)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700844{
845 long shmem = (start_page - WD_START_PG)<<8;
846
Geert Uytterhoeven7e364e92010-06-02 07:36:20 +0000847 word_memcpy_tocard(dev->mem_start + shmem, buf, count);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700848}
849
Geert Uytterhoeven7e364e92010-06-02 07:36:20 +0000850static void word_memcpy_tocard(unsigned long tp, const void *fp, int count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700851{
Geert Uytterhoeven7e364e92010-06-02 07:36:20 +0000852 volatile unsigned short *to = (void *)tp;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700853 const unsigned short *from = fp;
854
855 count++;
Joe Perches8e4d9692010-01-04 11:53:02 +0000856 count /= 2;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700857
Joe Perches8e4d9692010-01-04 11:53:02 +0000858 while (count--)
859 *to++ = *from++;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700860}
861
Geert Uytterhoeven7e364e92010-06-02 07:36:20 +0000862static void word_memcpy_fromcard(void *tp, unsigned long fp, int count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700863{
864 unsigned short *to = tp;
Geert Uytterhoeven7e364e92010-06-02 07:36:20 +0000865 const volatile unsigned short *from = (const void *)fp;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700866
867 count++;
Joe Perches8e4d9692010-01-04 11:53:02 +0000868 count /= 2;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700869
Joe Perches8e4d9692010-01-04 11:53:02 +0000870 while (count--)
871 *to++ = *from++;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700872}
873
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400874