Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * Linux ARCnet driver - COM20020 PCMCIA support | |
3 | * | |
4 | * Written 1994-1999 by Avery Pennarun, | |
5 | * based on an ISA version by David Woodhouse. | |
6 | * Derived from ibmtr_cs.c by Steve Kipisz (pcmcia-cs 3.1.4) | |
7 | * which was derived from pcnet_cs.c by David Hinds. | |
8 | * Some additional portions derived from skeleton.c by Donald Becker. | |
9 | * | |
10 | * Special thanks to Contemporary Controls, Inc. (www.ccontrols.com) | |
11 | * for sponsoring the further development of this driver. | |
12 | * | |
13 | * ********************** | |
14 | * | |
15 | * The original copyright of skeleton.c was as follows: | |
16 | * | |
17 | * skeleton.c Written 1993 by Donald Becker. | |
18 | * Copyright 1993 United States Government as represented by the | |
19 | * Director, National Security Agency. This software may only be used | |
20 | * and distributed according to the terms of the GNU General Public License as | |
21 | * modified by SRC, incorporated herein by reference. | |
22 | * | |
23 | * ********************** | |
24 | * Changes: | |
25 | * Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 08/08/2000 | |
26 | * - reorganize kmallocs in com20020_attach, checking all for failure | |
27 | * and releasing the previous allocations if one fails | |
28 | * ********************** | |
29 | * | |
30 | * For more details, see drivers/net/arcnet.c | |
31 | * | |
32 | * ********************** | |
33 | */ | |
34 | #include <linux/kernel.h> | |
35 | #include <linux/init.h> | |
36 | #include <linux/ptrace.h> | |
37 | #include <linux/slab.h> | |
38 | #include <linux/string.h> | |
39 | #include <linux/timer.h> | |
40 | #include <linux/delay.h> | |
41 | #include <linux/module.h> | |
42 | #include <linux/netdevice.h> | |
43 | #include <linux/arcdevice.h> | |
44 | #include <linux/com20020.h> | |
45 | ||
1da177e4 LT |
46 | #include <pcmcia/cs.h> |
47 | #include <pcmcia/cistpl.h> | |
48 | #include <pcmcia/ds.h> | |
49 | ||
50 | #include <asm/io.h> | |
51 | #include <asm/system.h> | |
52 | ||
53 | #define VERSION "arcnet: COM20020 PCMCIA support loaded.\n" | |
54 | ||
1da177e4 LT |
55 | |
56 | static void regdump(struct net_device *dev) | |
57 | { | |
636b8116 | 58 | #ifdef DEBUG |
1da177e4 LT |
59 | int ioaddr = dev->base_addr; |
60 | int count; | |
61 | ||
636b8116 | 62 | netdev_dbg(dev, "register dump:\n"); |
1da177e4 LT |
63 | for (count = ioaddr; count < ioaddr + 16; count++) |
64 | { | |
65 | if (!(count % 16)) | |
636b8116 JP |
66 | pr_cont("%04X:", count); |
67 | pr_cont(" %02X", inb(count)); | |
1da177e4 | 68 | } |
636b8116 | 69 | pr_cont("\n"); |
1da177e4 | 70 | |
636b8116 | 71 | netdev_dbg(dev, "buffer0 dump:\n"); |
1da177e4 LT |
72 | /* set up the address register */ |
73 | count = 0; | |
74 | outb((count >> 8) | RDDATAflag | AUTOINCflag, _ADDR_HI); | |
75 | outb(count & 0xff, _ADDR_LO); | |
76 | ||
77 | for (count = 0; count < 256+32; count++) | |
78 | { | |
79 | if (!(count % 16)) | |
636b8116 | 80 | pr_cont("%04X:", count); |
1da177e4 LT |
81 | |
82 | /* copy the data */ | |
636b8116 | 83 | pr_cont(" %02X", inb(_MEMDATA)); |
1da177e4 | 84 | } |
636b8116 JP |
85 | pr_cont("\n"); |
86 | #endif | |
1da177e4 LT |
87 | } |
88 | ||
1da177e4 LT |
89 | |
90 | ||
91 | /*====================================================================*/ | |
92 | ||
93 | /* Parameters that can be set with 'insmod' */ | |
94 | ||
95 | static int node; | |
96 | static int timeout = 3; | |
97 | static int backplane; | |
98 | static int clockp; | |
99 | static int clockm; | |
100 | ||
101 | module_param(node, int, 0); | |
102 | module_param(timeout, int, 0); | |
103 | module_param(backplane, int, 0); | |
104 | module_param(clockp, int, 0); | |
105 | module_param(clockm, int, 0); | |
106 | ||
107 | MODULE_LICENSE("GPL"); | |
108 | ||
109 | /*====================================================================*/ | |
110 | ||
15b99ac1 | 111 | static int com20020_config(struct pcmcia_device *link); |
fba395ee | 112 | static void com20020_release(struct pcmcia_device *link); |
1da177e4 | 113 | |
cc3b4866 | 114 | static void com20020_detach(struct pcmcia_device *p_dev); |
1da177e4 | 115 | |
1da177e4 LT |
116 | /*====================================================================*/ |
117 | ||
118 | typedef struct com20020_dev_t { | |
119 | struct net_device *dev; | |
1da177e4 LT |
120 | } com20020_dev_t; |
121 | ||
122 | /*====================================================================== | |
123 | ||
124 | com20020_attach() creates an "instance" of the driver, allocating | |
125 | local data structures for one device. The device is registered | |
126 | with Card Services. | |
127 | ||
128 | ======================================================================*/ | |
129 | ||
15b99ac1 | 130 | static int com20020_probe(struct pcmcia_device *p_dev) |
1da177e4 | 131 | { |
1da177e4 LT |
132 | com20020_dev_t *info; |
133 | struct net_device *dev; | |
1da177e4 | 134 | struct arcnet_local *lp; |
f8cfa618 | 135 | |
dd0fab5b | 136 | dev_dbg(&p_dev->dev, "com20020_attach()\n"); |
1da177e4 LT |
137 | |
138 | /* Create new network device */ | |
dd00cc48 | 139 | info = kzalloc(sizeof(struct com20020_dev_t), GFP_KERNEL); |
1da177e4 LT |
140 | if (!info) |
141 | goto fail_alloc_info; | |
142 | ||
143 | dev = alloc_arcdev(""); | |
144 | if (!dev) | |
145 | goto fail_alloc_dev; | |
146 | ||
4cf1653a | 147 | lp = netdev_priv(dev); |
1da177e4 LT |
148 | lp->timeout = timeout; |
149 | lp->backplane = backplane; | |
150 | lp->clockp = clockp; | |
151 | lp->clockm = clockm & 3; | |
152 | lp->hw.owner = THIS_MODULE; | |
153 | ||
154 | /* fill in our module parameters as defaults */ | |
155 | dev->dev_addr[0] = node; | |
156 | ||
90abdc3b DB |
157 | p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8; |
158 | p_dev->resource[0]->end = 16; | |
fd238232 DB |
159 | p_dev->conf.Attributes = CONF_ENABLE_IRQ; |
160 | p_dev->conf.IntType = INT_MEMORY_AND_IO; | |
1da177e4 | 161 | |
5fa9167a | 162 | info->dev = dev; |
fd238232 | 163 | p_dev->priv = info; |
1da177e4 | 164 | |
15b99ac1 | 165 | return com20020_config(p_dev); |
1da177e4 LT |
166 | |
167 | fail_alloc_dev: | |
168 | kfree(info); | |
169 | fail_alloc_info: | |
f8cfa618 | 170 | return -ENOMEM; |
1da177e4 LT |
171 | } /* com20020_attach */ |
172 | ||
173 | /*====================================================================== | |
174 | ||
175 | This deletes a driver "instance". The device is de-registered | |
176 | with Card Services. If it has been released, all local data | |
177 | structures are freed. Otherwise, the structures will be freed | |
178 | when the device is released. | |
179 | ||
180 | ======================================================================*/ | |
181 | ||
fba395ee | 182 | static void com20020_detach(struct pcmcia_device *link) |
1da177e4 LT |
183 | { |
184 | struct com20020_dev_t *info = link->priv; | |
b4635811 DB |
185 | struct net_device *dev = info->dev; |
186 | ||
dd0fab5b | 187 | dev_dbg(&link->dev, "detach...\n"); |
1da177e4 | 188 | |
dd0fab5b | 189 | dev_dbg(&link->dev, "com20020_detach\n"); |
1da177e4 | 190 | |
c7c2fa07 | 191 | dev_dbg(&link->dev, "unregister...\n"); |
1da177e4 | 192 | |
c7c2fa07 | 193 | unregister_netdev(dev); |
b4635811 | 194 | |
c7c2fa07 DB |
195 | /* |
196 | * this is necessary because we register our IRQ separately | |
197 | * from card services. | |
198 | */ | |
199 | if (dev->irq) | |
1da177e4 | 200 | free_irq(dev->irq, dev); |
1da177e4 | 201 | |
e2d40963 | 202 | com20020_release(link); |
1da177e4 | 203 | |
1da177e4 | 204 | /* Unlink device structure, free bits */ |
dd0fab5b | 205 | dev_dbg(&link->dev, "unlinking...\n"); |
1da177e4 LT |
206 | if (link->priv) |
207 | { | |
208 | dev = info->dev; | |
209 | if (dev) | |
210 | { | |
dd0fab5b | 211 | dev_dbg(&link->dev, "kfree...\n"); |
1da177e4 LT |
212 | free_netdev(dev); |
213 | } | |
dd0fab5b | 214 | dev_dbg(&link->dev, "kfree2...\n"); |
1da177e4 LT |
215 | kfree(info); |
216 | } | |
1da177e4 LT |
217 | |
218 | } /* com20020_detach */ | |
219 | ||
220 | /*====================================================================== | |
221 | ||
222 | com20020_config() is scheduled to run after a CARD_INSERTION event | |
223 | is received, to configure the PCMCIA socket, and to make the | |
224 | device available to the system. | |
225 | ||
226 | ======================================================================*/ | |
227 | ||
15b99ac1 | 228 | static int com20020_config(struct pcmcia_device *link) |
1da177e4 LT |
229 | { |
230 | struct arcnet_local *lp; | |
1da177e4 LT |
231 | com20020_dev_t *info; |
232 | struct net_device *dev; | |
dd0fab5b | 233 | int i, ret; |
1da177e4 LT |
234 | int ioaddr; |
235 | ||
1da177e4 LT |
236 | info = link->priv; |
237 | dev = info->dev; | |
238 | ||
dd0fab5b | 239 | dev_dbg(&link->dev, "config...\n"); |
1da177e4 | 240 | |
dd0fab5b | 241 | dev_dbg(&link->dev, "com20020_config\n"); |
1da177e4 | 242 | |
90abdc3b DB |
243 | dev_dbg(&link->dev, "baseport1 is %Xh\n", |
244 | (unsigned int) link->resource[0]->start); | |
245 | ||
4c89e88b | 246 | i = -ENODEV; |
90abdc3b DB |
247 | link->io_lines = 16; |
248 | ||
249 | if (!link->resource[0]->start) | |
1da177e4 LT |
250 | { |
251 | for (ioaddr = 0x100; ioaddr < 0x400; ioaddr += 0x10) | |
252 | { | |
90abdc3b DB |
253 | link->resource[0]->start = ioaddr; |
254 | i = pcmcia_request_io(link); | |
4c89e88b | 255 | if (i == 0) |
1da177e4 LT |
256 | break; |
257 | } | |
258 | } | |
259 | else | |
90abdc3b | 260 | i = pcmcia_request_io(link); |
1da177e4 | 261 | |
4c89e88b | 262 | if (i != 0) |
1da177e4 | 263 | { |
dd0fab5b | 264 | dev_dbg(&link->dev, "requestIO failed totally!\n"); |
1da177e4 LT |
265 | goto failed; |
266 | } | |
267 | ||
9a017a91 | 268 | ioaddr = dev->base_addr = link->resource[0]->start; |
dd0fab5b | 269 | dev_dbg(&link->dev, "got ioaddr %Xh\n", ioaddr); |
1da177e4 | 270 | |
5fa9167a | 271 | dev_dbg(&link->dev, "request IRQ %d\n", |
eb14120f DB |
272 | link->irq); |
273 | if (!link->irq) | |
1da177e4 | 274 | { |
dd0fab5b | 275 | dev_dbg(&link->dev, "requestIRQ failed totally!\n"); |
1da177e4 LT |
276 | goto failed; |
277 | } | |
278 | ||
eb14120f | 279 | dev->irq = link->irq; |
1da177e4 | 280 | |
dd0fab5b DB |
281 | ret = pcmcia_request_configuration(link, &link->conf); |
282 | if (ret) | |
283 | goto failed; | |
1da177e4 LT |
284 | |
285 | if (com20020_check(dev)) | |
286 | { | |
287 | regdump(dev); | |
288 | goto failed; | |
289 | } | |
290 | ||
4cf1653a | 291 | lp = netdev_priv(dev); |
1da177e4 LT |
292 | lp->card_name = "PCMCIA COM20020"; |
293 | lp->card_flags = ARC_CAN_10MBIT; /* pretend all of them can 10Mbit */ | |
294 | ||
dd2e5a15 | 295 | SET_NETDEV_DEV(dev, &link->dev); |
1da177e4 LT |
296 | |
297 | i = com20020_found(dev, 0); /* calls register_netdev */ | |
298 | ||
299 | if (i != 0) { | |
636b8116 JP |
300 | dev_notice(&link->dev, |
301 | "com20020_found() failed\n"); | |
1da177e4 LT |
302 | goto failed; |
303 | } | |
304 | ||
636b8116 JP |
305 | netdev_dbg(dev, "port %#3lx, irq %d\n", |
306 | dev->base_addr, dev->irq); | |
15b99ac1 | 307 | return 0; |
1da177e4 | 308 | |
1da177e4 | 309 | failed: |
dd0fab5b | 310 | dev_dbg(&link->dev, "com20020_config failed...\n"); |
1da177e4 | 311 | com20020_release(link); |
15b99ac1 | 312 | return -ENODEV; |
1da177e4 LT |
313 | } /* com20020_config */ |
314 | ||
315 | /*====================================================================== | |
316 | ||
317 | After a card is removed, com20020_release() will unregister the net | |
318 | device, and release the PCMCIA configuration. If the device is | |
319 | still open, this will be postponed until it is closed. | |
320 | ||
321 | ======================================================================*/ | |
322 | ||
fba395ee | 323 | static void com20020_release(struct pcmcia_device *link) |
1da177e4 | 324 | { |
dd0fab5b | 325 | dev_dbg(&link->dev, "com20020_release\n"); |
fba395ee | 326 | pcmcia_disable_device(link); |
1da177e4 LT |
327 | } |
328 | ||
fba395ee | 329 | static int com20020_suspend(struct pcmcia_device *link) |
98e4c28b | 330 | { |
98e4c28b DB |
331 | com20020_dev_t *info = link->priv; |
332 | struct net_device *dev = info->dev; | |
333 | ||
e2d40963 | 334 | if (link->open) |
8661bb5b | 335 | netif_device_detach(dev); |
98e4c28b DB |
336 | |
337 | return 0; | |
338 | } | |
339 | ||
fba395ee | 340 | static int com20020_resume(struct pcmcia_device *link) |
98e4c28b | 341 | { |
98e4c28b DB |
342 | com20020_dev_t *info = link->priv; |
343 | struct net_device *dev = info->dev; | |
344 | ||
e2d40963 | 345 | if (link->open) { |
8661bb5b | 346 | int ioaddr = dev->base_addr; |
4cf1653a | 347 | struct arcnet_local *lp = netdev_priv(dev); |
8661bb5b DB |
348 | ARCRESET; |
349 | } | |
98e4c28b DB |
350 | |
351 | return 0; | |
352 | } | |
353 | ||
7fb22bb4 | 354 | static struct pcmcia_device_id com20020_ids[] = { |
6bb1c39a MS |
355 | PCMCIA_DEVICE_PROD_ID12("Contemporary Control Systems, Inc.", |
356 | "PCM20 Arcnet Adapter", 0x59991666, 0x95dfffaf), | |
357 | PCMCIA_DEVICE_PROD_ID12("SoHard AG", | |
358 | "SH ARC PCMCIA", 0xf8991729, 0x69dff0c7), | |
7fb22bb4 DB |
359 | PCMCIA_DEVICE_NULL |
360 | }; | |
361 | MODULE_DEVICE_TABLE(pcmcia, com20020_ids); | |
1da177e4 LT |
362 | |
363 | static struct pcmcia_driver com20020_cs_driver = { | |
364 | .owner = THIS_MODULE, | |
365 | .drv = { | |
366 | .name = "com20020_cs", | |
367 | }, | |
15b99ac1 | 368 | .probe = com20020_probe, |
cc3b4866 | 369 | .remove = com20020_detach, |
7fb22bb4 | 370 | .id_table = com20020_ids, |
98e4c28b DB |
371 | .suspend = com20020_suspend, |
372 | .resume = com20020_resume, | |
1da177e4 LT |
373 | }; |
374 | ||
375 | static int __init init_com20020_cs(void) | |
376 | { | |
377 | return pcmcia_register_driver(&com20020_cs_driver); | |
378 | } | |
379 | ||
380 | static void __exit exit_com20020_cs(void) | |
381 | { | |
382 | pcmcia_unregister_driver(&com20020_cs_driver); | |
1da177e4 LT |
383 | } |
384 | ||
385 | module_init(init_com20020_cs); | |
386 | module_exit(exit_com20020_cs); |