1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | /* |
3 | * Amiga Linux/68k 8390 based PCMCIA Ethernet Driver for the Amiga 1200 |
4 | * |
5 | * (C) Copyright 1997 Alain Malek |
6 | * (Alain.Malek@cryogen.com) |
7 | * |
8 | * ---------------------------------------------------------------------------- |
9 | * |
10 | * This program is based on |
11 | * |
12 | * ne.c: A general non-shared-memory NS8390 ethernet driver for linux |
13 | * Written 1992-94 by Donald Becker. |
14 | * |
15 | * 8390.c: A general NS8390 ethernet driver core for linux. |
16 | * Written 1992-94 by Donald Becker. |
17 | * |
18 | * cnetdevice: A Sana-II ethernet driver for AmigaOS |
19 | * Written by Bruce Abbott (bhabbott@inhb.co.nz) |
20 | * |
21 | * ---------------------------------------------------------------------------- |
22 | * |
23 | */ |
24 | |
25 | |
26 | #include <linux/module.h> |
27 | #include <linux/kernel.h> |
28 | #include <linux/errno.h> |
29 | #include <linux/pci.h> |
30 | #include <linux/init.h> |
31 | #include <linux/delay.h> |
32 | #include <linux/netdevice.h> |
33 | #include <linux/etherdevice.h> |
34 | #include <linux/interrupt.h> |
35 | #include <linux/jiffies.h> |
36 | |
37 | #include <asm/io.h> |
38 | #include <asm/setup.h> |
39 | #include <asm/amigaints.h> |
40 | #include <asm/amigahw.h> |
41 | #include <asm/amigayle.h> |
42 | #include <asm/amipcmcia.h> |
43 | |
44 | #include "8390.h" |
45 | |
46 | /* ---- No user-serviceable parts below ---- */ |
47 | |
48 | #define DRV_NAME "apne" |
49 | |
50 | #define NE_BASE (dev->base_addr) |
51 | #define NE_CMD 0x00 |
52 | #define NE_DATAPORT 0x10 /* NatSemi-defined port window offset. */ |
53 | #define NE_RESET 0x1f /* Issue a read to reset, a write to clear. */ |
54 | #define NE_IO_EXTENT 0x20 |
55 | |
56 | #define NE_EN0_ISR 0x07 |
57 | #define NE_EN0_DCFG 0x0e |
58 | |
59 | #define NE_EN0_RSARLO 0x08 |
60 | #define NE_EN0_RSARHI 0x09 |
61 | #define NE_EN0_RCNTLO 0x0a |
62 | #define NE_EN0_RXCR 0x0c |
63 | #define NE_EN0_TXCR 0x0d |
64 | #define NE_EN0_RCNTHI 0x0b |
65 | #define NE_EN0_IMR 0x0f |
66 | |
67 | #define NE1SM_START_PG 0x20 /* First page of TX buffer */ |
68 | #define NE1SM_STOP_PG 0x40 /* Last page +1 of RX ring */ |
69 | #define NESM_START_PG 0x40 /* First page of TX buffer */ |
70 | #define NESM_STOP_PG 0x80 /* Last page +1 of RX ring */ |
71 | |
72 | |
73 | static int apne_probe1(struct net_device *dev, int ioaddr); |
74 | |
75 | static void apne_reset_8390(struct net_device *dev); |
76 | static void apne_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, |
77 | int ring_page); |
78 | static void apne_block_input(struct net_device *dev, int count, |
79 | struct sk_buff *skb, int ring_offset); |
80 | static void apne_block_output(struct net_device *dev, const int count, |
81 | const unsigned char *buf, const int start_page); |
82 | static irqreturn_t apne_interrupt(int irq, void *dev_id); |
83 | |
84 | static int init_pcmcia(void); |
85 | |
86 | /* IO base address used for nic */ |
87 | |
88 | #define IOBASE 0x300 |
89 | |
90 | /* |
91 | use MANUAL_CONFIG and MANUAL_OFFSET for enabling IO by hand |
92 | you can find the values to use by looking at the cnet.device |
93 | config file example (the default values are for the CNET40BC card) |
94 | */ |
95 | |
96 | /* |
97 | #define MANUAL_CONFIG 0x20 |
98 | #define MANUAL_OFFSET 0x3f8 |
99 | |
100 | #define MANUAL_HWADDR0 0x00 |
101 | #define MANUAL_HWADDR1 0x12 |
102 | #define MANUAL_HWADDR2 0x34 |
103 | #define MANUAL_HWADDR3 0x56 |
104 | #define MANUAL_HWADDR4 0x78 |
105 | #define MANUAL_HWADDR5 0x9a |
106 | */ |
107 | |
108 | static const char version[] = |
109 | "apne.c:v1.1 7/10/98 Alain Malek (Alain.Malek@cryogen.ch)\n" ; |
110 | |
111 | static int apne_owned; /* signal if card already owned */ |
112 | |
113 | static u32 apne_msg_enable; |
114 | module_param_named(msg_enable, apne_msg_enable, uint, 0444); |
115 | MODULE_PARM_DESC(msg_enable, "Debug message level (see linux/netdevice.h for bitmap)" ); |
116 | |
117 | static struct net_device * __init apne_probe(void) |
118 | { |
119 | struct net_device *dev; |
120 | struct ei_device *ei_local; |
121 | |
122 | #ifndef MANUAL_CONFIG |
123 | char tuple[8]; |
124 | #endif |
125 | int err; |
126 | |
127 | if (!MACH_IS_AMIGA) |
128 | return ERR_PTR(error: -ENODEV); |
129 | |
130 | if (apne_owned) |
131 | return ERR_PTR(error: -ENODEV); |
132 | |
133 | if ( !(AMIGAHW_PRESENT(PCMCIA)) ) |
134 | return ERR_PTR(error: -ENODEV); |
135 | |
136 | pr_info("Looking for PCMCIA ethernet card : " ); |
137 | |
138 | /* check if a card is inserted */ |
139 | if (!(PCMCIA_INSERTED)) { |
140 | pr_cont("NO PCMCIA card inserted\n" ); |
141 | return ERR_PTR(error: -ENODEV); |
142 | } |
143 | |
144 | dev = alloc_ei_netdev(); |
145 | if (!dev) |
146 | return ERR_PTR(error: -ENOMEM); |
147 | ei_local = netdev_priv(dev); |
148 | ei_local->msg_enable = apne_msg_enable; |
149 | |
150 | /* disable pcmcia irq for readtuple */ |
151 | pcmcia_disable_irq(); |
152 | |
153 | #ifndef MANUAL_CONFIG |
154 | if ((pcmcia_copy_tuple(CISTPL_FUNCID, tuple, 8) < 3) || |
155 | (tuple[2] != CISTPL_FUNCID_NETWORK)) { |
156 | pr_cont("not an ethernet card\n" ); |
157 | /* XXX: shouldn't we re-enable irq here? */ |
158 | free_netdev(dev); |
159 | return ERR_PTR(error: -ENODEV); |
160 | } |
161 | #endif |
162 | |
163 | pr_cont("ethernet PCMCIA card inserted\n" ); |
164 | |
165 | if (!init_pcmcia()) { |
166 | /* XXX: shouldn't we re-enable irq here? */ |
167 | free_netdev(dev); |
168 | return ERR_PTR(error: -ENODEV); |
169 | } |
170 | |
171 | if (!request_region(IOBASE, 0x20, DRV_NAME)) { |
172 | free_netdev(dev); |
173 | return ERR_PTR(error: -EBUSY); |
174 | } |
175 | |
176 | err = apne_probe1(dev, IOBASE); |
177 | if (err) { |
178 | release_region(IOBASE, 0x20); |
179 | free_netdev(dev); |
180 | return ERR_PTR(error: err); |
181 | } |
182 | err = register_netdev(dev); |
183 | if (!err) |
184 | return dev; |
185 | |
186 | pcmcia_disable_irq(); |
187 | free_irq(IRQ_AMIGA_PORTS, dev); |
188 | pcmcia_reset(); |
189 | release_region(IOBASE, 0x20); |
190 | free_netdev(dev); |
191 | return ERR_PTR(error: err); |
192 | } |
193 | |
194 | static int __init apne_probe1(struct net_device *dev, int ioaddr) |
195 | { |
196 | int i; |
197 | unsigned char SA_prom[32]; |
198 | int wordlength = 2; |
199 | const char *name = NULL; |
200 | int start_page, stop_page; |
201 | #ifndef MANUAL_HWADDR0 |
202 | int neX000, ctron; |
203 | #endif |
204 | static unsigned version_printed; |
205 | |
206 | if ((apne_msg_enable & NETIF_MSG_DRV) && (version_printed++ == 0)) |
207 | netdev_info(dev, format: version); |
208 | |
209 | netdev_info(dev, format: "PCMCIA NE*000 ethercard probe" ); |
210 | |
211 | /* Reset card. Who knows what dain-bramaged state it was left in. */ |
212 | { unsigned long reset_start_time = jiffies; |
213 | |
214 | outb(inb(port: ioaddr + NE_RESET), port: ioaddr + NE_RESET); |
215 | |
216 | while ((inb(port: ioaddr + NE_EN0_ISR) & ENISR_RESET) == 0) |
217 | if (time_after(jiffies, reset_start_time + 2*HZ/100)) { |
218 | pr_cont(" not found (no reset ack).\n" ); |
219 | return -ENODEV; |
220 | } |
221 | |
222 | outb(value: 0xff, port: ioaddr + NE_EN0_ISR); /* Ack all intr. */ |
223 | } |
224 | |
225 | #ifndef MANUAL_HWADDR0 |
226 | |
227 | /* Read the 16 bytes of station address PROM. |
228 | We must first initialize registers, similar to NS8390_init(eifdev, 0). |
229 | We can't reliably read the SAPROM address without this. |
230 | (I learned the hard way!). */ |
231 | { |
232 | struct {unsigned long value, offset; } program_seq[] = { |
233 | {E8390_NODMA+E8390_PAGE0+E8390_STOP, NE_CMD}, /* Select page 0*/ |
234 | {0x48, NE_EN0_DCFG}, /* Set byte-wide (0x48) access. */ |
235 | {0x00, NE_EN0_RCNTLO}, /* Clear the count regs. */ |
236 | {0x00, NE_EN0_RCNTHI}, |
237 | {0x00, NE_EN0_IMR}, /* Mask completion irq. */ |
238 | {0xFF, NE_EN0_ISR}, |
239 | {E8390_RXOFF, NE_EN0_RXCR}, /* 0x20 Set to monitor */ |
240 | {E8390_TXOFF, NE_EN0_TXCR}, /* 0x02 and loopback mode. */ |
241 | {32, NE_EN0_RCNTLO}, |
242 | {0x00, NE_EN0_RCNTHI}, |
243 | {0x00, NE_EN0_RSARLO}, /* DMA starting at 0x0000. */ |
244 | {0x00, NE_EN0_RSARHI}, |
245 | {E8390_RREAD+E8390_START, NE_CMD}, |
246 | }; |
247 | for (i = 0; i < ARRAY_SIZE(program_seq); i++) { |
248 | outb(value: program_seq[i].value, port: ioaddr + program_seq[i].offset); |
249 | } |
250 | |
251 | } |
252 | for(i = 0; i < 32 /*sizeof(SA_prom)*/; i+=2) { |
253 | SA_prom[i] = inb(port: ioaddr + NE_DATAPORT); |
254 | SA_prom[i+1] = inb(port: ioaddr + NE_DATAPORT); |
255 | if (SA_prom[i] != SA_prom[i+1]) |
256 | wordlength = 1; |
257 | } |
258 | |
259 | /* At this point, wordlength *only* tells us if the SA_prom is doubled |
260 | up or not because some broken PCI cards don't respect the byte-wide |
261 | request in program_seq above, and hence don't have doubled up values. |
262 | These broken cards would otherwise be detected as an ne1000. */ |
263 | |
264 | if (wordlength == 2) |
265 | for (i = 0; i < 16; i++) |
266 | SA_prom[i] = SA_prom[i+i]; |
267 | |
268 | if (wordlength == 2) { |
269 | /* We must set the 8390 for word mode. */ |
270 | outb(value: 0x49, port: ioaddr + NE_EN0_DCFG); |
271 | start_page = NESM_START_PG; |
272 | stop_page = NESM_STOP_PG; |
273 | } else { |
274 | start_page = NE1SM_START_PG; |
275 | stop_page = NE1SM_STOP_PG; |
276 | } |
277 | |
278 | neX000 = (SA_prom[14] == 0x57 && SA_prom[15] == 0x57); |
279 | ctron = (SA_prom[0] == 0x00 && SA_prom[1] == 0x00 && SA_prom[2] == 0x1d); |
280 | |
281 | /* Set up the rest of the parameters. */ |
282 | if (neX000) { |
283 | name = (wordlength == 2) ? "NE2000" : "NE1000" ; |
284 | } else if (ctron) { |
285 | name = (wordlength == 2) ? "Ctron-8" : "Ctron-16" ; |
286 | start_page = 0x01; |
287 | stop_page = (wordlength == 2) ? 0x40 : 0x20; |
288 | } else { |
289 | pr_cont(" not found.\n" ); |
290 | return -ENXIO; |
291 | |
292 | } |
293 | |
294 | #else |
295 | wordlength = 2; |
296 | /* We must set the 8390 for word mode. */ |
297 | outb(0x49, ioaddr + NE_EN0_DCFG); |
298 | start_page = NESM_START_PG; |
299 | stop_page = NESM_STOP_PG; |
300 | |
301 | SA_prom[0] = MANUAL_HWADDR0; |
302 | SA_prom[1] = MANUAL_HWADDR1; |
303 | SA_prom[2] = MANUAL_HWADDR2; |
304 | SA_prom[3] = MANUAL_HWADDR3; |
305 | SA_prom[4] = MANUAL_HWADDR4; |
306 | SA_prom[5] = MANUAL_HWADDR5; |
307 | name = "NE2000" ; |
308 | #endif |
309 | |
310 | dev->base_addr = ioaddr; |
311 | dev->irq = IRQ_AMIGA_PORTS; |
312 | dev->netdev_ops = &ei_netdev_ops; |
313 | |
314 | /* Install the Interrupt handler */ |
315 | i = request_irq(irq: dev->irq, handler: apne_interrupt, IRQF_SHARED, DRV_NAME, dev); |
316 | if (i) return i; |
317 | |
318 | eth_hw_addr_set(dev, addr: SA_prom); |
319 | |
320 | pr_cont(" %pM\n" , dev->dev_addr); |
321 | |
322 | netdev_info(dev, format: "%s found.\n" , name); |
323 | |
324 | ei_status.name = name; |
325 | ei_status.tx_start_page = start_page; |
326 | ei_status.stop_page = stop_page; |
327 | ei_status.word16 = (wordlength == 2); |
328 | |
329 | ei_status.rx_start_page = start_page + TX_PAGES; |
330 | |
331 | ei_status.reset_8390 = &apne_reset_8390; |
332 | ei_status.block_input = &apne_block_input; |
333 | ei_status.block_output = &apne_block_output; |
334 | ei_status.get_8390_hdr = &apne_get_8390_hdr; |
335 | |
336 | NS8390_init(dev, startp: 0); |
337 | |
338 | pcmcia_ack_int(pcmcia_get_intreq()); /* ack PCMCIA int req */ |
339 | pcmcia_enable_irq(); |
340 | |
341 | apne_owned = 1; |
342 | |
343 | return 0; |
344 | } |
345 | |
346 | /* Hard reset the card. This used to pause for the same period that a |
347 | 8390 reset command required, but that shouldn't be necessary. */ |
348 | static void |
349 | apne_reset_8390(struct net_device *dev) |
350 | { |
351 | unsigned long reset_start_time = jiffies; |
352 | struct ei_device *ei_local = netdev_priv(dev); |
353 | |
354 | init_pcmcia(); |
355 | |
356 | netif_dbg(ei_local, hw, dev, "resetting the 8390 t=%ld...\n" , jiffies); |
357 | |
358 | outb(inb(NE_BASE + NE_RESET), NE_BASE + NE_RESET); |
359 | |
360 | ei_status.txing = 0; |
361 | ei_status.dmaing = 0; |
362 | |
363 | /* This check _should_not_ be necessary, omit eventually. */ |
364 | while ((inb(NE_BASE+NE_EN0_ISR) & ENISR_RESET) == 0) |
365 | if (time_after(jiffies, reset_start_time + 2*HZ/100)) { |
366 | netdev_err(dev, format: "ne_reset_8390() did not complete.\n" ); |
367 | break; |
368 | } |
369 | outb(ENISR_RESET, NE_BASE + NE_EN0_ISR); /* Ack intr. */ |
370 | } |
371 | |
372 | /* Grab the 8390 specific header. Similar to the block_input routine, but |
373 | we don't need to be concerned with ring wrap as the header will be at |
374 | the start of a page, so we optimize accordingly. */ |
375 | |
376 | static void |
377 | apne_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page) |
378 | { |
379 | |
380 | int nic_base = dev->base_addr; |
381 | int cnt; |
382 | char *ptrc; |
383 | short *ptrs; |
384 | |
385 | /* This *shouldn't* happen. If it does, it's the last thing you'll see */ |
386 | if (ei_status.dmaing) { |
387 | netdev_err(dev, format: "DMAing conflict in ne_get_8390_hdr " |
388 | "[DMAstat:%d][irqlock:%d][intr:%d].\n" , |
389 | ei_status.dmaing, ei_status.irqlock, dev->irq); |
390 | return; |
391 | } |
392 | |
393 | ei_status.dmaing |= 0x01; |
394 | outb(E8390_NODMA+E8390_PAGE0+E8390_START, port: nic_base+ NE_CMD); |
395 | outb(ENISR_RDC, port: nic_base + NE_EN0_ISR); |
396 | outb(value: sizeof(struct e8390_pkt_hdr), port: nic_base + NE_EN0_RCNTLO); |
397 | outb(value: 0, port: nic_base + NE_EN0_RCNTHI); |
398 | outb(value: 0, port: nic_base + NE_EN0_RSARLO); /* On page boundary */ |
399 | outb(value: ring_page, port: nic_base + NE_EN0_RSARHI); |
400 | outb(E8390_RREAD+E8390_START, port: nic_base + NE_CMD); |
401 | |
402 | if (ei_status.word16) { |
403 | ptrs = (short*)hdr; |
404 | for(cnt = 0; cnt < (sizeof(struct e8390_pkt_hdr)>>1); cnt++) |
405 | *ptrs++ = inw(NE_BASE + NE_DATAPORT); |
406 | } else { |
407 | ptrc = (char*)hdr; |
408 | for(cnt = 0; cnt < sizeof(struct e8390_pkt_hdr); cnt++) |
409 | *ptrc++ = inb(NE_BASE + NE_DATAPORT); |
410 | } |
411 | |
412 | outb(ENISR_RDC, port: nic_base + NE_EN0_ISR); /* Ack intr. */ |
413 | ei_status.dmaing &= ~0x01; |
414 | |
415 | le16_to_cpus(&hdr->count); |
416 | } |
417 | |
418 | /* Block input and output, similar to the Crynwr packet driver. If you |
419 | are porting to a new ethercard, look at the packet driver source for hints. |
420 | The NEx000 doesn't share the on-board packet memory -- you have to put |
421 | the packet out through the "remote DMA" dataport using outb. */ |
422 | |
423 | static void |
424 | apne_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset) |
425 | { |
426 | int nic_base = dev->base_addr; |
427 | char *buf = skb->data; |
428 | char *ptrc; |
429 | short *ptrs; |
430 | int cnt; |
431 | |
432 | /* This *shouldn't* happen. If it does, it's the last thing you'll see */ |
433 | if (ei_status.dmaing) { |
434 | netdev_err(dev, format: "DMAing conflict in ne_block_input " |
435 | "[DMAstat:%d][irqlock:%d][intr:%d].\n" , |
436 | ei_status.dmaing, ei_status.irqlock, dev->irq); |
437 | return; |
438 | } |
439 | ei_status.dmaing |= 0x01; |
440 | outb(E8390_NODMA+E8390_PAGE0+E8390_START, port: nic_base+ NE_CMD); |
441 | outb(ENISR_RDC, port: nic_base + NE_EN0_ISR); |
442 | outb(value: count & 0xff, port: nic_base + NE_EN0_RCNTLO); |
443 | outb(value: count >> 8, port: nic_base + NE_EN0_RCNTHI); |
444 | outb(value: ring_offset & 0xff, port: nic_base + NE_EN0_RSARLO); |
445 | outb(value: ring_offset >> 8, port: nic_base + NE_EN0_RSARHI); |
446 | outb(E8390_RREAD+E8390_START, port: nic_base + NE_CMD); |
447 | if (ei_status.word16) { |
448 | ptrs = (short*)buf; |
449 | for (cnt = 0; cnt < (count>>1); cnt++) |
450 | *ptrs++ = inw(NE_BASE + NE_DATAPORT); |
451 | if (count & 0x01) { |
452 | buf[count-1] = inb(NE_BASE + NE_DATAPORT); |
453 | } |
454 | } else { |
455 | ptrc = buf; |
456 | for (cnt = 0; cnt < count; cnt++) |
457 | *ptrc++ = inb(NE_BASE + NE_DATAPORT); |
458 | } |
459 | |
460 | outb(ENISR_RDC, port: nic_base + NE_EN0_ISR); /* Ack intr. */ |
461 | ei_status.dmaing &= ~0x01; |
462 | } |
463 | |
464 | static void |
465 | apne_block_output(struct net_device *dev, int count, |
466 | const unsigned char *buf, const int start_page) |
467 | { |
468 | int nic_base = NE_BASE; |
469 | unsigned long dma_start; |
470 | char *ptrc; |
471 | short *ptrs; |
472 | int cnt; |
473 | |
474 | /* Round the count up for word writes. Do we need to do this? |
475 | What effect will an odd byte count have on the 8390? |
476 | I should check someday. */ |
477 | if (ei_status.word16 && (count & 0x01)) |
478 | count++; |
479 | |
480 | /* This *shouldn't* happen. If it does, it's the last thing you'll see */ |
481 | if (ei_status.dmaing) { |
482 | netdev_err(dev, format: "DMAing conflict in ne_block_output." |
483 | "[DMAstat:%d][irqlock:%d][intr:%d]\n" , |
484 | ei_status.dmaing, ei_status.irqlock, dev->irq); |
485 | return; |
486 | } |
487 | ei_status.dmaing |= 0x01; |
488 | /* We should already be in page 0, but to be safe... */ |
489 | outb(E8390_PAGE0+E8390_START+E8390_NODMA, port: nic_base + NE_CMD); |
490 | |
491 | outb(ENISR_RDC, port: nic_base + NE_EN0_ISR); |
492 | |
493 | /* Now the normal output. */ |
494 | outb(value: count & 0xff, port: nic_base + NE_EN0_RCNTLO); |
495 | outb(value: count >> 8, port: nic_base + NE_EN0_RCNTHI); |
496 | outb(value: 0x00, port: nic_base + NE_EN0_RSARLO); |
497 | outb(value: start_page, port: nic_base + NE_EN0_RSARHI); |
498 | |
499 | outb(E8390_RWRITE+E8390_START, port: nic_base + NE_CMD); |
500 | if (ei_status.word16) { |
501 | ptrs = (short*)buf; |
502 | for (cnt = 0; cnt < count>>1; cnt++) |
503 | outw(value: *ptrs++, NE_BASE+NE_DATAPORT); |
504 | } else { |
505 | ptrc = (char*)buf; |
506 | for (cnt = 0; cnt < count; cnt++) |
507 | outb(value: *ptrc++, NE_BASE + NE_DATAPORT); |
508 | } |
509 | |
510 | dma_start = jiffies; |
511 | |
512 | while ((inb(NE_BASE + NE_EN0_ISR) & ENISR_RDC) == 0) |
513 | if (time_after(jiffies, dma_start + 2*HZ/100)) { /* 20ms */ |
514 | netdev_warn(dev, format: "timeout waiting for Tx RDC.\n" ); |
515 | apne_reset_8390(dev); |
516 | NS8390_init(dev,startp: 1); |
517 | break; |
518 | } |
519 | |
520 | outb(ENISR_RDC, port: nic_base + NE_EN0_ISR); /* Ack intr. */ |
521 | ei_status.dmaing &= ~0x01; |
522 | } |
523 | |
524 | static irqreturn_t apne_interrupt(int irq, void *dev_id) |
525 | { |
526 | unsigned char pcmcia_intreq; |
527 | |
528 | if (!(gayle.inten & GAYLE_IRQ_IRQ)) |
529 | return IRQ_NONE; |
530 | |
531 | pcmcia_intreq = pcmcia_get_intreq(); |
532 | |
533 | if (!(pcmcia_intreq & GAYLE_IRQ_IRQ)) { |
534 | pcmcia_ack_int(pcmcia_intreq); |
535 | return IRQ_NONE; |
536 | } |
537 | if (apne_msg_enable & NETIF_MSG_INTR) |
538 | pr_debug("pcmcia intreq = %x\n" , pcmcia_intreq); |
539 | pcmcia_disable_irq(); /* to get rid of the sti() within ei_interrupt */ |
540 | ei_interrupt(irq, dev_id); |
541 | pcmcia_ack_int(pcmcia_get_intreq()); |
542 | pcmcia_enable_irq(); |
543 | return IRQ_HANDLED; |
544 | } |
545 | |
546 | static struct net_device *apne_dev; |
547 | |
548 | static int __init apne_module_init(void) |
549 | { |
550 | apne_dev = apne_probe(); |
551 | return PTR_ERR_OR_ZERO(ptr: apne_dev); |
552 | } |
553 | |
554 | static void __exit apne_module_exit(void) |
555 | { |
556 | unregister_netdev(dev: apne_dev); |
557 | |
558 | pcmcia_disable_irq(); |
559 | |
560 | free_irq(IRQ_AMIGA_PORTS, apne_dev); |
561 | |
562 | pcmcia_reset(); |
563 | |
564 | release_region(IOBASE, 0x20); |
565 | |
566 | free_netdev(dev: apne_dev); |
567 | } |
568 | module_init(apne_module_init); |
569 | module_exit(apne_module_exit); |
570 | |
571 | static int init_pcmcia(void) |
572 | { |
573 | u_char config; |
574 | #ifndef MANUAL_CONFIG |
575 | u_char tuple[32]; |
576 | int offset_len; |
577 | #endif |
578 | u_long offset; |
579 | |
580 | pcmcia_reset(); |
581 | pcmcia_program_voltage(PCMCIA_0V); |
582 | pcmcia_access_speed(PCMCIA_SPEED_250NS); |
583 | pcmcia_write_enable(); |
584 | |
585 | #ifdef MANUAL_CONFIG |
586 | config = MANUAL_CONFIG; |
587 | #else |
588 | /* get and write config byte to enable IO port */ |
589 | |
590 | if (pcmcia_copy_tuple(CISTPL_CFTABLE_ENTRY, tuple, 32) < 3) |
591 | return 0; |
592 | |
593 | config = tuple[2] & 0x3f; |
594 | #endif |
595 | #ifdef MANUAL_OFFSET |
596 | offset = MANUAL_OFFSET; |
597 | #else |
598 | if (pcmcia_copy_tuple(CISTPL_CONFIG, tuple, 32) < 6) |
599 | return 0; |
600 | |
601 | offset_len = (tuple[2] & 0x3) + 1; |
602 | offset = 0; |
603 | while(offset_len--) { |
604 | offset = (offset << 8) | tuple[4+offset_len]; |
605 | } |
606 | #endif |
607 | |
608 | out_8(GAYLE_ATTRIBUTE+offset, config); |
609 | |
610 | return 1; |
611 | } |
612 | |
613 | MODULE_LICENSE("GPL" ); |
614 | |