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1da177e4 LT |
1 | /* |
2 | * Amiga Linux/68k 8390 based PCMCIA Ethernet Driver for the Amiga 1200 | |
3 | * | |
4 | * (C) Copyright 1997 Alain Malek | |
5 | * (Alain.Malek@cryogen.com) | |
6 | * | |
7 | * ---------------------------------------------------------------------------- | |
8 | * | |
9 | * This program is based on | |
10 | * | |
11 | * ne.c: A general non-shared-memory NS8390 ethernet driver for linux | |
12 | * Written 1992-94 by Donald Becker. | |
13 | * | |
14 | * 8390.c: A general NS8390 ethernet driver core for linux. | |
15 | * Written 1992-94 by Donald Becker. | |
16 | * | |
17 | * cnetdevice: A Sana-II ethernet driver for AmigaOS | |
18 | * Written by Bruce Abbott (bhabbott@inhb.co.nz) | |
19 | * | |
20 | * ---------------------------------------------------------------------------- | |
21 | * | |
22 | * This file is subject to the terms and conditions of the GNU General Public | |
23 | * License. See the file COPYING in the main directory of the Linux | |
24 | * distribution for more details. | |
25 | * | |
26 | * ---------------------------------------------------------------------------- | |
27 | * | |
28 | */ | |
29 | ||
30 | ||
31 | #include <linux/module.h> | |
32 | #include <linux/kernel.h> | |
33 | #include <linux/errno.h> | |
34 | #include <linux/pci.h> | |
35 | #include <linux/init.h> | |
36 | #include <linux/delay.h> | |
37 | #include <linux/netdevice.h> | |
38 | #include <linux/etherdevice.h> | |
39 | ||
40 | #include <asm/system.h> | |
41 | #include <asm/io.h> | |
42 | #include <asm/setup.h> | |
43 | #include <asm/amigaints.h> | |
44 | #include <asm/amigahw.h> | |
45 | #include <asm/amigayle.h> | |
46 | #include <asm/amipcmcia.h> | |
47 | ||
48 | #include "8390.h" | |
49 | ||
50 | /* ---- No user-serviceable parts below ---- */ | |
51 | ||
52 | #define DRV_NAME "apne" | |
53 | ||
54 | #define NE_BASE (dev->base_addr) | |
55 | #define NE_CMD 0x00 | |
56 | #define NE_DATAPORT 0x10 /* NatSemi-defined port window offset. */ | |
57 | #define NE_RESET 0x1f /* Issue a read to reset, a write to clear. */ | |
58 | #define NE_IO_EXTENT 0x20 | |
59 | ||
60 | #define NE_EN0_ISR 0x07 | |
61 | #define NE_EN0_DCFG 0x0e | |
62 | ||
63 | #define NE_EN0_RSARLO 0x08 | |
64 | #define NE_EN0_RSARHI 0x09 | |
65 | #define NE_EN0_RCNTLO 0x0a | |
66 | #define NE_EN0_RXCR 0x0c | |
67 | #define NE_EN0_TXCR 0x0d | |
68 | #define NE_EN0_RCNTHI 0x0b | |
69 | #define NE_EN0_IMR 0x0f | |
70 | ||
71 | #define NE1SM_START_PG 0x20 /* First page of TX buffer */ | |
72 | #define NE1SM_STOP_PG 0x40 /* Last page +1 of RX ring */ | |
73 | #define NESM_START_PG 0x40 /* First page of TX buffer */ | |
74 | #define NESM_STOP_PG 0x80 /* Last page +1 of RX ring */ | |
75 | ||
76 | ||
77 | struct net_device * __init apne_probe(int unit); | |
78 | static int apne_probe1(struct net_device *dev, int ioaddr); | |
79 | ||
80 | static int apne_open(struct net_device *dev); | |
81 | static int apne_close(struct net_device *dev); | |
82 | ||
83 | static void apne_reset_8390(struct net_device *dev); | |
84 | static void apne_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, | |
85 | int ring_page); | |
86 | static void apne_block_input(struct net_device *dev, int count, | |
87 | struct sk_buff *skb, int ring_offset); | |
88 | static void apne_block_output(struct net_device *dev, const int count, | |
89 | const unsigned char *buf, const int start_page); | |
90 | static irqreturn_t apne_interrupt(int irq, void *dev_id, struct pt_regs *regs); | |
91 | ||
92 | static int init_pcmcia(void); | |
93 | ||
94 | /* IO base address used for nic */ | |
95 | ||
96 | #define IOBASE 0x300 | |
97 | ||
98 | /* | |
99 | use MANUAL_CONFIG and MANUAL_OFFSET for enabling IO by hand | |
100 | you can find the values to use by looking at the cnet.device | |
101 | config file example (the default values are for the CNET40BC card) | |
102 | */ | |
103 | ||
104 | /* | |
105 | #define MANUAL_CONFIG 0x20 | |
106 | #define MANUAL_OFFSET 0x3f8 | |
107 | ||
108 | #define MANUAL_HWADDR0 0x00 | |
109 | #define MANUAL_HWADDR1 0x12 | |
110 | #define MANUAL_HWADDR2 0x34 | |
111 | #define MANUAL_HWADDR3 0x56 | |
112 | #define MANUAL_HWADDR4 0x78 | |
113 | #define MANUAL_HWADDR5 0x9a | |
114 | */ | |
115 | ||
116 | static const char version[] = | |
117 | "apne.c:v1.1 7/10/98 Alain Malek (Alain.Malek@cryogen.ch)\n"; | |
118 | ||
119 | static int apne_owned; /* signal if card already owned */ | |
120 | ||
121 | struct net_device * __init apne_probe(int unit) | |
122 | { | |
123 | struct net_device *dev; | |
124 | #ifndef MANUAL_CONFIG | |
125 | char tuple[8]; | |
126 | #endif | |
127 | int err; | |
128 | ||
129 | if (apne_owned) | |
130 | return ERR_PTR(-ENODEV); | |
131 | ||
132 | if ( !(AMIGAHW_PRESENT(PCMCIA)) ) | |
133 | return ERR_PTR(-ENODEV); | |
134 | ||
135 | printk("Looking for PCMCIA ethernet card : "); | |
136 | ||
137 | /* check if a card is inserted */ | |
138 | if (!(PCMCIA_INSERTED)) { | |
139 | printk("NO PCMCIA card inserted\n"); | |
140 | return ERR_PTR(-ENODEV); | |
141 | } | |
142 | ||
143 | dev = alloc_ei_netdev(); | |
144 | if (!dev) | |
145 | return ERR_PTR(-ENOMEM); | |
146 | if (unit >= 0) { | |
147 | sprintf(dev->name, "eth%d", unit); | |
148 | netdev_boot_setup_check(dev); | |
149 | } | |
150 | SET_MODULE_OWNER(dev); | |
151 | ||
152 | /* disable pcmcia irq for readtuple */ | |
153 | pcmcia_disable_irq(); | |
154 | ||
155 | #ifndef MANUAL_CONFIG | |
156 | if ((pcmcia_copy_tuple(CISTPL_FUNCID, tuple, 8) < 3) || | |
157 | (tuple[2] != CISTPL_FUNCID_NETWORK)) { | |
158 | printk("not an ethernet card\n"); | |
159 | /* XXX: shouldn't we re-enable irq here? */ | |
160 | free_netdev(dev); | |
161 | return ERR_PTR(-ENODEV); | |
162 | } | |
163 | #endif | |
164 | ||
165 | printk("ethernet PCMCIA card inserted\n"); | |
166 | ||
167 | if (!init_pcmcia()) { | |
168 | /* XXX: shouldn't we re-enable irq here? */ | |
169 | free_netdev(dev); | |
170 | return ERR_PTR(-ENODEV); | |
171 | } | |
172 | ||
173 | if (!request_region(IOBASE, 0x20, DRV_NAME)) { | |
174 | free_netdev(dev); | |
175 | return ERR_PTR(-EBUSY); | |
176 | } | |
177 | ||
178 | err = apne_probe1(dev, IOBASE); | |
179 | if (err) { | |
180 | release_region(IOBASE, 0x20); | |
181 | free_netdev(dev); | |
182 | return ERR_PTR(err); | |
183 | } | |
184 | err = register_netdev(dev); | |
185 | if (!err) | |
186 | return dev; | |
187 | ||
188 | pcmcia_disable_irq(); | |
189 | free_irq(IRQ_AMIGA_PORTS, dev); | |
190 | pcmcia_reset(); | |
191 | release_region(IOBASE, 0x20); | |
192 | free_netdev(dev); | |
193 | return ERR_PTR(err); | |
194 | } | |
195 | ||
196 | static int __init apne_probe1(struct net_device *dev, int ioaddr) | |
197 | { | |
198 | int i; | |
199 | unsigned char SA_prom[32]; | |
200 | int wordlength = 2; | |
201 | const char *name = NULL; | |
202 | int start_page, stop_page; | |
203 | #ifndef MANUAL_HWADDR0 | |
204 | int neX000, ctron; | |
205 | #endif | |
206 | static unsigned version_printed; | |
207 | ||
208 | if (ei_debug && version_printed++ == 0) | |
209 | printk(version); | |
210 | ||
211 | printk("PCMCIA NE*000 ethercard probe"); | |
212 | ||
213 | /* Reset card. Who knows what dain-bramaged state it was left in. */ | |
214 | { unsigned long reset_start_time = jiffies; | |
215 | ||
216 | outb(inb(ioaddr + NE_RESET), ioaddr + NE_RESET); | |
217 | ||
218 | while ((inb(ioaddr + NE_EN0_ISR) & ENISR_RESET) == 0) | |
219 | if (jiffies - reset_start_time > 2*HZ/100) { | |
220 | printk(" not found (no reset ack).\n"); | |
221 | return -ENODEV; | |
222 | } | |
223 | ||
224 | outb(0xff, ioaddr + NE_EN0_ISR); /* Ack all intr. */ | |
225 | } | |
226 | ||
227 | #ifndef MANUAL_HWADDR0 | |
228 | ||
229 | /* Read the 16 bytes of station address PROM. | |
230 | We must first initialize registers, similar to NS8390_init(eifdev, 0). | |
231 | We can't reliably read the SAPROM address without this. | |
232 | (I learned the hard way!). */ | |
233 | { | |
234 | struct {unsigned long value, offset; } program_seq[] = { | |
235 | {E8390_NODMA+E8390_PAGE0+E8390_STOP, NE_CMD}, /* Select page 0*/ | |
236 | {0x48, NE_EN0_DCFG}, /* Set byte-wide (0x48) access. */ | |
237 | {0x00, NE_EN0_RCNTLO}, /* Clear the count regs. */ | |
238 | {0x00, NE_EN0_RCNTHI}, | |
239 | {0x00, NE_EN0_IMR}, /* Mask completion irq. */ | |
240 | {0xFF, NE_EN0_ISR}, | |
241 | {E8390_RXOFF, NE_EN0_RXCR}, /* 0x20 Set to monitor */ | |
242 | {E8390_TXOFF, NE_EN0_TXCR}, /* 0x02 and loopback mode. */ | |
243 | {32, NE_EN0_RCNTLO}, | |
244 | {0x00, NE_EN0_RCNTHI}, | |
245 | {0x00, NE_EN0_RSARLO}, /* DMA starting at 0x0000. */ | |
246 | {0x00, NE_EN0_RSARHI}, | |
247 | {E8390_RREAD+E8390_START, NE_CMD}, | |
248 | }; | |
249 | for (i = 0; i < sizeof(program_seq)/sizeof(program_seq[0]); i++) { | |
250 | outb(program_seq[i].value, ioaddr + program_seq[i].offset); | |
251 | } | |
252 | ||
253 | } | |
254 | for(i = 0; i < 32 /*sizeof(SA_prom)*/; i+=2) { | |
255 | SA_prom[i] = inb(ioaddr + NE_DATAPORT); | |
256 | SA_prom[i+1] = inb(ioaddr + NE_DATAPORT); | |
257 | if (SA_prom[i] != SA_prom[i+1]) | |
258 | wordlength = 1; | |
259 | } | |
260 | ||
261 | /* At this point, wordlength *only* tells us if the SA_prom is doubled | |
262 | up or not because some broken PCI cards don't respect the byte-wide | |
263 | request in program_seq above, and hence don't have doubled up values. | |
264 | These broken cards would otherwise be detected as an ne1000. */ | |
265 | ||
266 | if (wordlength == 2) | |
267 | for (i = 0; i < 16; i++) | |
268 | SA_prom[i] = SA_prom[i+i]; | |
269 | ||
270 | if (wordlength == 2) { | |
271 | /* We must set the 8390 for word mode. */ | |
272 | outb(0x49, ioaddr + NE_EN0_DCFG); | |
273 | start_page = NESM_START_PG; | |
274 | stop_page = NESM_STOP_PG; | |
275 | } else { | |
276 | start_page = NE1SM_START_PG; | |
277 | stop_page = NE1SM_STOP_PG; | |
278 | } | |
279 | ||
280 | neX000 = (SA_prom[14] == 0x57 && SA_prom[15] == 0x57); | |
281 | ctron = (SA_prom[0] == 0x00 && SA_prom[1] == 0x00 && SA_prom[2] == 0x1d); | |
282 | ||
283 | /* Set up the rest of the parameters. */ | |
284 | if (neX000) { | |
285 | name = (wordlength == 2) ? "NE2000" : "NE1000"; | |
286 | } else if (ctron) { | |
287 | name = (wordlength == 2) ? "Ctron-8" : "Ctron-16"; | |
288 | start_page = 0x01; | |
289 | stop_page = (wordlength == 2) ? 0x40 : 0x20; | |
290 | } else { | |
291 | printk(" not found.\n"); | |
292 | return -ENXIO; | |
293 | ||
294 | } | |
295 | ||
296 | #else | |
297 | wordlength = 2; | |
298 | /* We must set the 8390 for word mode. */ | |
299 | outb(0x49, ioaddr + NE_EN0_DCFG); | |
300 | start_page = NESM_START_PG; | |
301 | stop_page = NESM_STOP_PG; | |
302 | ||
303 | SA_prom[0] = MANUAL_HWADDR0; | |
304 | SA_prom[1] = MANUAL_HWADDR1; | |
305 | SA_prom[2] = MANUAL_HWADDR2; | |
306 | SA_prom[3] = MANUAL_HWADDR3; | |
307 | SA_prom[4] = MANUAL_HWADDR4; | |
308 | SA_prom[5] = MANUAL_HWADDR5; | |
309 | name = "NE2000"; | |
310 | #endif | |
311 | ||
312 | dev->base_addr = ioaddr; | |
313 | ||
314 | /* Install the Interrupt handler */ | |
315 | i = request_irq(IRQ_AMIGA_PORTS, apne_interrupt, SA_SHIRQ, DRV_NAME, dev); | |
316 | if (i) return i; | |
317 | ||
318 | for(i = 0; i < ETHER_ADDR_LEN; i++) { | |
319 | printk(" %2.2x", SA_prom[i]); | |
320 | dev->dev_addr[i] = SA_prom[i]; | |
321 | } | |
322 | ||
323 | printk("\n%s: %s found.\n", dev->name, name); | |
324 | ||
325 | ei_status.name = name; | |
326 | ei_status.tx_start_page = start_page; | |
327 | ei_status.stop_page = stop_page; | |
328 | ei_status.word16 = (wordlength == 2); | |
329 | ||
330 | ei_status.rx_start_page = start_page + TX_PAGES; | |
331 | ||
332 | ei_status.reset_8390 = &apne_reset_8390; | |
333 | ei_status.block_input = &apne_block_input; | |
334 | ei_status.block_output = &apne_block_output; | |
335 | ei_status.get_8390_hdr = &apne_get_8390_hdr; | |
336 | dev->open = &apne_open; | |
337 | dev->stop = &apne_close; | |
338 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
339 | dev->poll_controller = ei_poll; | |
340 | #endif | |
341 | NS8390_init(dev, 0); | |
342 | ||
343 | pcmcia_ack_int(pcmcia_get_intreq()); /* ack PCMCIA int req */ | |
344 | pcmcia_enable_irq(); | |
345 | ||
346 | apne_owned = 1; | |
347 | ||
348 | return 0; | |
349 | } | |
350 | ||
351 | static int | |
352 | apne_open(struct net_device *dev) | |
353 | { | |
354 | ei_open(dev); | |
355 | return 0; | |
356 | } | |
357 | ||
358 | static int | |
359 | apne_close(struct net_device *dev) | |
360 | { | |
361 | if (ei_debug > 1) | |
362 | printk("%s: Shutting down ethercard.\n", dev->name); | |
363 | ei_close(dev); | |
364 | return 0; | |
365 | } | |
366 | ||
367 | /* Hard reset the card. This used to pause for the same period that a | |
368 | 8390 reset command required, but that shouldn't be necessary. */ | |
369 | static void | |
370 | apne_reset_8390(struct net_device *dev) | |
371 | { | |
372 | unsigned long reset_start_time = jiffies; | |
373 | ||
374 | init_pcmcia(); | |
375 | ||
376 | if (ei_debug > 1) printk("resetting the 8390 t=%ld...", jiffies); | |
377 | ||
378 | outb(inb(NE_BASE + NE_RESET), NE_BASE + NE_RESET); | |
379 | ||
380 | ei_status.txing = 0; | |
381 | ei_status.dmaing = 0; | |
382 | ||
383 | /* This check _should_not_ be necessary, omit eventually. */ | |
384 | while ((inb(NE_BASE+NE_EN0_ISR) & ENISR_RESET) == 0) | |
385 | if (jiffies - reset_start_time > 2*HZ/100) { | |
386 | printk("%s: ne_reset_8390() did not complete.\n", dev->name); | |
387 | break; | |
388 | } | |
389 | outb(ENISR_RESET, NE_BASE + NE_EN0_ISR); /* Ack intr. */ | |
390 | } | |
391 | ||
392 | /* Grab the 8390 specific header. Similar to the block_input routine, but | |
393 | we don't need to be concerned with ring wrap as the header will be at | |
394 | the start of a page, so we optimize accordingly. */ | |
395 | ||
396 | static void | |
397 | apne_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page) | |
398 | { | |
399 | ||
400 | int nic_base = dev->base_addr; | |
401 | int cnt; | |
402 | char *ptrc; | |
403 | short *ptrs; | |
404 | ||
405 | /* This *shouldn't* happen. If it does, it's the last thing you'll see */ | |
406 | if (ei_status.dmaing) { | |
407 | printk("%s: DMAing conflict in ne_get_8390_hdr " | |
408 | "[DMAstat:%d][irqlock:%d][intr:%d].\n", | |
409 | dev->name, ei_status.dmaing, ei_status.irqlock, dev->irq); | |
410 | return; | |
411 | } | |
412 | ||
413 | ei_status.dmaing |= 0x01; | |
414 | outb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD); | |
415 | outb(ENISR_RDC, nic_base + NE_EN0_ISR); | |
416 | outb(sizeof(struct e8390_pkt_hdr), nic_base + NE_EN0_RCNTLO); | |
417 | outb(0, nic_base + NE_EN0_RCNTHI); | |
418 | outb(0, nic_base + NE_EN0_RSARLO); /* On page boundary */ | |
419 | outb(ring_page, nic_base + NE_EN0_RSARHI); | |
420 | outb(E8390_RREAD+E8390_START, nic_base + NE_CMD); | |
421 | ||
422 | if (ei_status.word16) { | |
423 | ptrs = (short*)hdr; | |
424 | for(cnt = 0; cnt < (sizeof(struct e8390_pkt_hdr)>>1); cnt++) | |
425 | *ptrs++ = inw(NE_BASE + NE_DATAPORT); | |
426 | } else { | |
427 | ptrc = (char*)hdr; | |
428 | for(cnt = 0; cnt < sizeof(struct e8390_pkt_hdr); cnt++) | |
429 | *ptrc++ = inb(NE_BASE + NE_DATAPORT); | |
430 | } | |
431 | ||
432 | outb(ENISR_RDC, nic_base + NE_EN0_ISR); /* Ack intr. */ | |
433 | ei_status.dmaing &= ~0x01; | |
434 | ||
435 | le16_to_cpus(&hdr->count); | |
436 | } | |
437 | ||
438 | /* Block input and output, similar to the Crynwr packet driver. If you | |
439 | are porting to a new ethercard, look at the packet driver source for hints. | |
440 | The NEx000 doesn't share the on-board packet memory -- you have to put | |
441 | the packet out through the "remote DMA" dataport using outb. */ | |
442 | ||
443 | static void | |
444 | apne_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset) | |
445 | { | |
446 | int nic_base = dev->base_addr; | |
447 | char *buf = skb->data; | |
448 | char *ptrc; | |
449 | short *ptrs; | |
450 | int cnt; | |
451 | ||
452 | /* This *shouldn't* happen. If it does, it's the last thing you'll see */ | |
453 | if (ei_status.dmaing) { | |
454 | printk("%s: DMAing conflict in ne_block_input " | |
455 | "[DMAstat:%d][irqlock:%d][intr:%d].\n", | |
456 | dev->name, ei_status.dmaing, ei_status.irqlock, dev->irq); | |
457 | return; | |
458 | } | |
459 | ei_status.dmaing |= 0x01; | |
460 | outb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD); | |
461 | outb(ENISR_RDC, nic_base + NE_EN0_ISR); | |
462 | outb(count & 0xff, nic_base + NE_EN0_RCNTLO); | |
463 | outb(count >> 8, nic_base + NE_EN0_RCNTHI); | |
464 | outb(ring_offset & 0xff, nic_base + NE_EN0_RSARLO); | |
465 | outb(ring_offset >> 8, nic_base + NE_EN0_RSARHI); | |
466 | outb(E8390_RREAD+E8390_START, nic_base + NE_CMD); | |
467 | if (ei_status.word16) { | |
468 | ptrs = (short*)buf; | |
469 | for (cnt = 0; cnt < (count>>1); cnt++) | |
470 | *ptrs++ = inw(NE_BASE + NE_DATAPORT); | |
471 | if (count & 0x01) { | |
472 | buf[count-1] = inb(NE_BASE + NE_DATAPORT); | |
473 | } | |
474 | } else { | |
475 | ptrc = (char*)buf; | |
476 | for (cnt = 0; cnt < count; cnt++) | |
477 | *ptrc++ = inb(NE_BASE + NE_DATAPORT); | |
478 | } | |
479 | ||
480 | outb(ENISR_RDC, nic_base + NE_EN0_ISR); /* Ack intr. */ | |
481 | ei_status.dmaing &= ~0x01; | |
482 | } | |
483 | ||
484 | static void | |
485 | apne_block_output(struct net_device *dev, int count, | |
486 | const unsigned char *buf, const int start_page) | |
487 | { | |
488 | int nic_base = NE_BASE; | |
489 | unsigned long dma_start; | |
490 | char *ptrc; | |
491 | short *ptrs; | |
492 | int cnt; | |
493 | ||
494 | /* Round the count up for word writes. Do we need to do this? | |
495 | What effect will an odd byte count have on the 8390? | |
496 | I should check someday. */ | |
497 | if (ei_status.word16 && (count & 0x01)) | |
498 | count++; | |
499 | ||
500 | /* This *shouldn't* happen. If it does, it's the last thing you'll see */ | |
501 | if (ei_status.dmaing) { | |
502 | printk("%s: DMAing conflict in ne_block_output." | |
503 | "[DMAstat:%d][irqlock:%d][intr:%d]\n", | |
504 | dev->name, ei_status.dmaing, ei_status.irqlock, dev->irq); | |
505 | return; | |
506 | } | |
507 | ei_status.dmaing |= 0x01; | |
508 | /* We should already be in page 0, but to be safe... */ | |
509 | outb(E8390_PAGE0+E8390_START+E8390_NODMA, nic_base + NE_CMD); | |
510 | ||
511 | outb(ENISR_RDC, nic_base + NE_EN0_ISR); | |
512 | ||
513 | /* Now the normal output. */ | |
514 | outb(count & 0xff, nic_base + NE_EN0_RCNTLO); | |
515 | outb(count >> 8, nic_base + NE_EN0_RCNTHI); | |
516 | outb(0x00, nic_base + NE_EN0_RSARLO); | |
517 | outb(start_page, nic_base + NE_EN0_RSARHI); | |
518 | ||
519 | outb(E8390_RWRITE+E8390_START, nic_base + NE_CMD); | |
520 | if (ei_status.word16) { | |
521 | ptrs = (short*)buf; | |
522 | for (cnt = 0; cnt < count>>1; cnt++) | |
523 | outw(*ptrs++, NE_BASE+NE_DATAPORT); | |
524 | } else { | |
525 | ptrc = (char*)buf; | |
526 | for (cnt = 0; cnt < count; cnt++) | |
527 | outb(*ptrc++, NE_BASE + NE_DATAPORT); | |
528 | } | |
529 | ||
530 | dma_start = jiffies; | |
531 | ||
532 | while ((inb(NE_BASE + NE_EN0_ISR) & ENISR_RDC) == 0) | |
533 | if (jiffies - dma_start > 2*HZ/100) { /* 20ms */ | |
534 | printk("%s: timeout waiting for Tx RDC.\n", dev->name); | |
535 | apne_reset_8390(dev); | |
536 | NS8390_init(dev,1); | |
537 | break; | |
538 | } | |
539 | ||
540 | outb(ENISR_RDC, nic_base + NE_EN0_ISR); /* Ack intr. */ | |
541 | ei_status.dmaing &= ~0x01; | |
542 | return; | |
543 | } | |
544 | ||
545 | static irqreturn_t apne_interrupt(int irq, void *dev_id, struct pt_regs *regs) | |
546 | { | |
547 | unsigned char pcmcia_intreq; | |
548 | ||
549 | if (!(gayle.inten & GAYLE_IRQ_IRQ)) | |
550 | return IRQ_NONE; | |
551 | ||
552 | pcmcia_intreq = pcmcia_get_intreq(); | |
553 | ||
554 | if (!(pcmcia_intreq & GAYLE_IRQ_IRQ)) { | |
555 | pcmcia_ack_int(pcmcia_intreq); | |
556 | return IRQ_NONE; | |
557 | } | |
558 | if (ei_debug > 3) | |
559 | printk("pcmcia intreq = %x\n", pcmcia_intreq); | |
560 | pcmcia_disable_irq(); /* to get rid of the sti() within ei_interrupt */ | |
561 | ei_interrupt(irq, dev_id, regs); | |
562 | pcmcia_ack_int(pcmcia_get_intreq()); | |
563 | pcmcia_enable_irq(); | |
564 | return IRQ_HANDLED; | |
565 | } | |
566 | ||
567 | #ifdef MODULE | |
568 | static struct net_device *apne_dev; | |
569 | ||
570 | int init_module(void) | |
571 | { | |
572 | apne_dev = apne_probe(-1); | |
573 | if (IS_ERR(apne_dev)) | |
574 | return PTR_ERR(apne_dev); | |
575 | return 0; | |
576 | } | |
577 | ||
578 | void cleanup_module(void) | |
579 | { | |
580 | unregister_netdev(apne_dev); | |
581 | ||
582 | pcmcia_disable_irq(); | |
583 | ||
584 | free_irq(IRQ_AMIGA_PORTS, apne_dev); | |
585 | ||
586 | pcmcia_reset(); | |
587 | ||
588 | release_region(IOBASE, 0x20); | |
589 | ||
590 | free_netdev(apne_dev); | |
591 | } | |
592 | ||
593 | #endif | |
594 | ||
595 | static int init_pcmcia(void) | |
596 | { | |
597 | u_char config; | |
598 | #ifndef MANUAL_CONFIG | |
599 | u_char tuple[32]; | |
600 | int offset_len; | |
601 | #endif | |
602 | u_long offset; | |
603 | ||
604 | pcmcia_reset(); | |
605 | pcmcia_program_voltage(PCMCIA_0V); | |
606 | pcmcia_access_speed(PCMCIA_SPEED_250NS); | |
607 | pcmcia_write_enable(); | |
608 | ||
609 | #ifdef MANUAL_CONFIG | |
610 | config = MANUAL_CONFIG; | |
611 | #else | |
612 | /* get and write config byte to enable IO port */ | |
613 | ||
614 | if (pcmcia_copy_tuple(CISTPL_CFTABLE_ENTRY, tuple, 32) < 3) | |
615 | return 0; | |
616 | ||
617 | config = tuple[2] & 0x3f; | |
618 | #endif | |
619 | #ifdef MANUAL_OFFSET | |
620 | offset = MANUAL_OFFSET; | |
621 | #else | |
622 | if (pcmcia_copy_tuple(CISTPL_CONFIG, tuple, 32) < 6) | |
623 | return 0; | |
624 | ||
625 | offset_len = (tuple[2] & 0x3) + 1; | |
626 | offset = 0; | |
627 | while(offset_len--) { | |
628 | offset = (offset << 8) | tuple[4+offset_len]; | |
629 | } | |
630 | #endif | |
631 | ||
632 | out_8(GAYLE_ATTRIBUTE+offset, config); | |
633 | ||
634 | return 1; | |
635 | } | |
636 | ||
637 | MODULE_LICENSE("GPL"); |