Commit | Line | Data |
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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/cistpl.h> |
47 | #include <pcmcia/ds.h> | |
48 | ||
49 | #include <asm/io.h> | |
50 | #include <asm/system.h> | |
51 | ||
52 | #define VERSION "arcnet: COM20020 PCMCIA support loaded.\n" | |
53 | ||
1da177e4 LT |
54 | |
55 | static void regdump(struct net_device *dev) | |
56 | { | |
636b8116 | 57 | #ifdef DEBUG |
1da177e4 LT |
58 | int ioaddr = dev->base_addr; |
59 | int count; | |
60 | ||
636b8116 | 61 | netdev_dbg(dev, "register dump:\n"); |
1da177e4 LT |
62 | for (count = ioaddr; count < ioaddr + 16; count++) |
63 | { | |
64 | if (!(count % 16)) | |
636b8116 JP |
65 | pr_cont("%04X:", count); |
66 | pr_cont(" %02X", inb(count)); | |
1da177e4 | 67 | } |
636b8116 | 68 | pr_cont("\n"); |
1da177e4 | 69 | |
636b8116 | 70 | netdev_dbg(dev, "buffer0 dump:\n"); |
1da177e4 LT |
71 | /* set up the address register */ |
72 | count = 0; | |
73 | outb((count >> 8) | RDDATAflag | AUTOINCflag, _ADDR_HI); | |
74 | outb(count & 0xff, _ADDR_LO); | |
75 | ||
76 | for (count = 0; count < 256+32; count++) | |
77 | { | |
78 | if (!(count % 16)) | |
636b8116 | 79 | pr_cont("%04X:", count); |
1da177e4 LT |
80 | |
81 | /* copy the data */ | |
636b8116 | 82 | pr_cont(" %02X", inb(_MEMDATA)); |
1da177e4 | 83 | } |
636b8116 JP |
84 | pr_cont("\n"); |
85 | #endif | |
1da177e4 LT |
86 | } |
87 | ||
1da177e4 LT |
88 | |
89 | ||
90 | /*====================================================================*/ | |
91 | ||
92 | /* Parameters that can be set with 'insmod' */ | |
93 | ||
94 | static int node; | |
95 | static int timeout = 3; | |
96 | static int backplane; | |
97 | static int clockp; | |
98 | static int clockm; | |
99 | ||
100 | module_param(node, int, 0); | |
101 | module_param(timeout, int, 0); | |
102 | module_param(backplane, int, 0); | |
103 | module_param(clockp, int, 0); | |
104 | module_param(clockm, int, 0); | |
105 | ||
106 | MODULE_LICENSE("GPL"); | |
107 | ||
108 | /*====================================================================*/ | |
109 | ||
15b99ac1 | 110 | static int com20020_config(struct pcmcia_device *link); |
fba395ee | 111 | static void com20020_release(struct pcmcia_device *link); |
1da177e4 | 112 | |
cc3b4866 | 113 | static void com20020_detach(struct pcmcia_device *p_dev); |
1da177e4 | 114 | |
1da177e4 LT |
115 | /*====================================================================*/ |
116 | ||
117 | typedef struct com20020_dev_t { | |
118 | struct net_device *dev; | |
1da177e4 LT |
119 | } com20020_dev_t; |
120 | ||
15b99ac1 | 121 | static int com20020_probe(struct pcmcia_device *p_dev) |
1da177e4 | 122 | { |
1da177e4 LT |
123 | com20020_dev_t *info; |
124 | struct net_device *dev; | |
1da177e4 | 125 | struct arcnet_local *lp; |
f8cfa618 | 126 | |
dd0fab5b | 127 | dev_dbg(&p_dev->dev, "com20020_attach()\n"); |
1da177e4 LT |
128 | |
129 | /* Create new network device */ | |
dd00cc48 | 130 | info = kzalloc(sizeof(struct com20020_dev_t), GFP_KERNEL); |
1da177e4 LT |
131 | if (!info) |
132 | goto fail_alloc_info; | |
133 | ||
134 | dev = alloc_arcdev(""); | |
135 | if (!dev) | |
136 | goto fail_alloc_dev; | |
137 | ||
4cf1653a | 138 | lp = netdev_priv(dev); |
1da177e4 LT |
139 | lp->timeout = timeout; |
140 | lp->backplane = backplane; | |
141 | lp->clockp = clockp; | |
142 | lp->clockm = clockm & 3; | |
143 | lp->hw.owner = THIS_MODULE; | |
144 | ||
145 | /* fill in our module parameters as defaults */ | |
146 | dev->dev_addr[0] = node; | |
147 | ||
90abdc3b DB |
148 | p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8; |
149 | p_dev->resource[0]->end = 16; | |
1ac71e5a | 150 | p_dev->config_flags |= CONF_ENABLE_IRQ; |
1da177e4 | 151 | |
5fa9167a | 152 | info->dev = dev; |
fd238232 | 153 | p_dev->priv = info; |
1da177e4 | 154 | |
15b99ac1 | 155 | return com20020_config(p_dev); |
1da177e4 LT |
156 | |
157 | fail_alloc_dev: | |
158 | kfree(info); | |
159 | fail_alloc_info: | |
f8cfa618 | 160 | return -ENOMEM; |
1da177e4 LT |
161 | } /* com20020_attach */ |
162 | ||
fba395ee | 163 | static void com20020_detach(struct pcmcia_device *link) |
1da177e4 LT |
164 | { |
165 | struct com20020_dev_t *info = link->priv; | |
b4635811 DB |
166 | struct net_device *dev = info->dev; |
167 | ||
dd0fab5b | 168 | dev_dbg(&link->dev, "detach...\n"); |
1da177e4 | 169 | |
dd0fab5b | 170 | dev_dbg(&link->dev, "com20020_detach\n"); |
1da177e4 | 171 | |
c7c2fa07 | 172 | dev_dbg(&link->dev, "unregister...\n"); |
1da177e4 | 173 | |
c7c2fa07 | 174 | unregister_netdev(dev); |
b4635811 | 175 | |
c7c2fa07 DB |
176 | /* |
177 | * this is necessary because we register our IRQ separately | |
178 | * from card services. | |
179 | */ | |
180 | if (dev->irq) | |
1da177e4 | 181 | free_irq(dev->irq, dev); |
1da177e4 | 182 | |
e2d40963 | 183 | com20020_release(link); |
1da177e4 | 184 | |
1da177e4 | 185 | /* Unlink device structure, free bits */ |
dd0fab5b | 186 | dev_dbg(&link->dev, "unlinking...\n"); |
1da177e4 LT |
187 | if (link->priv) |
188 | { | |
189 | dev = info->dev; | |
190 | if (dev) | |
191 | { | |
dd0fab5b | 192 | dev_dbg(&link->dev, "kfree...\n"); |
1da177e4 LT |
193 | free_netdev(dev); |
194 | } | |
dd0fab5b | 195 | dev_dbg(&link->dev, "kfree2...\n"); |
1da177e4 LT |
196 | kfree(info); |
197 | } | |
1da177e4 LT |
198 | |
199 | } /* com20020_detach */ | |
200 | ||
15b99ac1 | 201 | static int com20020_config(struct pcmcia_device *link) |
1da177e4 LT |
202 | { |
203 | struct arcnet_local *lp; | |
1da177e4 LT |
204 | com20020_dev_t *info; |
205 | struct net_device *dev; | |
dd0fab5b | 206 | int i, ret; |
1da177e4 LT |
207 | int ioaddr; |
208 | ||
1da177e4 LT |
209 | info = link->priv; |
210 | dev = info->dev; | |
211 | ||
dd0fab5b | 212 | dev_dbg(&link->dev, "config...\n"); |
1da177e4 | 213 | |
dd0fab5b | 214 | dev_dbg(&link->dev, "com20020_config\n"); |
1da177e4 | 215 | |
90abdc3b DB |
216 | dev_dbg(&link->dev, "baseport1 is %Xh\n", |
217 | (unsigned int) link->resource[0]->start); | |
218 | ||
4c89e88b | 219 | i = -ENODEV; |
90abdc3b DB |
220 | link->io_lines = 16; |
221 | ||
222 | if (!link->resource[0]->start) | |
1da177e4 LT |
223 | { |
224 | for (ioaddr = 0x100; ioaddr < 0x400; ioaddr += 0x10) | |
225 | { | |
90abdc3b DB |
226 | link->resource[0]->start = ioaddr; |
227 | i = pcmcia_request_io(link); | |
4c89e88b | 228 | if (i == 0) |
1da177e4 LT |
229 | break; |
230 | } | |
231 | } | |
232 | else | |
90abdc3b | 233 | i = pcmcia_request_io(link); |
1da177e4 | 234 | |
4c89e88b | 235 | if (i != 0) |
1da177e4 | 236 | { |
dd0fab5b | 237 | dev_dbg(&link->dev, "requestIO failed totally!\n"); |
1da177e4 LT |
238 | goto failed; |
239 | } | |
240 | ||
9a017a91 | 241 | ioaddr = dev->base_addr = link->resource[0]->start; |
dd0fab5b | 242 | dev_dbg(&link->dev, "got ioaddr %Xh\n", ioaddr); |
1da177e4 | 243 | |
5fa9167a | 244 | dev_dbg(&link->dev, "request IRQ %d\n", |
eb14120f DB |
245 | link->irq); |
246 | if (!link->irq) | |
1da177e4 | 247 | { |
dd0fab5b | 248 | dev_dbg(&link->dev, "requestIRQ failed totally!\n"); |
1da177e4 LT |
249 | goto failed; |
250 | } | |
251 | ||
eb14120f | 252 | dev->irq = link->irq; |
1da177e4 | 253 | |
1ac71e5a | 254 | ret = pcmcia_enable_device(link); |
dd0fab5b DB |
255 | if (ret) |
256 | goto failed; | |
1da177e4 LT |
257 | |
258 | if (com20020_check(dev)) | |
259 | { | |
260 | regdump(dev); | |
261 | goto failed; | |
262 | } | |
263 | ||
4cf1653a | 264 | lp = netdev_priv(dev); |
1da177e4 LT |
265 | lp->card_name = "PCMCIA COM20020"; |
266 | lp->card_flags = ARC_CAN_10MBIT; /* pretend all of them can 10Mbit */ | |
267 | ||
dd2e5a15 | 268 | SET_NETDEV_DEV(dev, &link->dev); |
1da177e4 LT |
269 | |
270 | i = com20020_found(dev, 0); /* calls register_netdev */ | |
271 | ||
272 | if (i != 0) { | |
636b8116 JP |
273 | dev_notice(&link->dev, |
274 | "com20020_found() failed\n"); | |
1da177e4 LT |
275 | goto failed; |
276 | } | |
277 | ||
636b8116 JP |
278 | netdev_dbg(dev, "port %#3lx, irq %d\n", |
279 | dev->base_addr, dev->irq); | |
15b99ac1 | 280 | return 0; |
1da177e4 | 281 | |
1da177e4 | 282 | failed: |
dd0fab5b | 283 | dev_dbg(&link->dev, "com20020_config failed...\n"); |
1da177e4 | 284 | com20020_release(link); |
15b99ac1 | 285 | return -ENODEV; |
1da177e4 LT |
286 | } /* com20020_config */ |
287 | ||
fba395ee | 288 | static void com20020_release(struct pcmcia_device *link) |
1da177e4 | 289 | { |
dd0fab5b | 290 | dev_dbg(&link->dev, "com20020_release\n"); |
fba395ee | 291 | pcmcia_disable_device(link); |
1da177e4 LT |
292 | } |
293 | ||
fba395ee | 294 | static int com20020_suspend(struct pcmcia_device *link) |
98e4c28b | 295 | { |
98e4c28b DB |
296 | com20020_dev_t *info = link->priv; |
297 | struct net_device *dev = info->dev; | |
298 | ||
e2d40963 | 299 | if (link->open) |
8661bb5b | 300 | netif_device_detach(dev); |
98e4c28b DB |
301 | |
302 | return 0; | |
303 | } | |
304 | ||
fba395ee | 305 | static int com20020_resume(struct pcmcia_device *link) |
98e4c28b | 306 | { |
98e4c28b DB |
307 | com20020_dev_t *info = link->priv; |
308 | struct net_device *dev = info->dev; | |
309 | ||
e2d40963 | 310 | if (link->open) { |
8661bb5b | 311 | int ioaddr = dev->base_addr; |
4cf1653a | 312 | struct arcnet_local *lp = netdev_priv(dev); |
8661bb5b DB |
313 | ARCRESET; |
314 | } | |
98e4c28b DB |
315 | |
316 | return 0; | |
317 | } | |
318 | ||
25f8f54f | 319 | static const struct pcmcia_device_id com20020_ids[] = { |
6bb1c39a MS |
320 | PCMCIA_DEVICE_PROD_ID12("Contemporary Control Systems, Inc.", |
321 | "PCM20 Arcnet Adapter", 0x59991666, 0x95dfffaf), | |
322 | PCMCIA_DEVICE_PROD_ID12("SoHard AG", | |
323 | "SH ARC PCMCIA", 0xf8991729, 0x69dff0c7), | |
7fb22bb4 DB |
324 | PCMCIA_DEVICE_NULL |
325 | }; | |
326 | MODULE_DEVICE_TABLE(pcmcia, com20020_ids); | |
1da177e4 LT |
327 | |
328 | static struct pcmcia_driver com20020_cs_driver = { | |
329 | .owner = THIS_MODULE, | |
2e9b981a | 330 | .name = "com20020_cs", |
15b99ac1 | 331 | .probe = com20020_probe, |
cc3b4866 | 332 | .remove = com20020_detach, |
7fb22bb4 | 333 | .id_table = com20020_ids, |
98e4c28b DB |
334 | .suspend = com20020_suspend, |
335 | .resume = com20020_resume, | |
1da177e4 LT |
336 | }; |
337 | ||
338 | static int __init init_com20020_cs(void) | |
339 | { | |
340 | return pcmcia_register_driver(&com20020_cs_driver); | |
341 | } | |
342 | ||
343 | static void __exit exit_com20020_cs(void) | |
344 | { | |
345 | pcmcia_unregister_driver(&com20020_cs_driver); | |
1da177e4 LT |
346 | } |
347 | ||
348 | module_init(init_com20020_cs); | |
349 | module_exit(exit_com20020_cs); |