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> | |
1da177e4 LT |
35 | #include <linux/ptrace.h> |
36 | #include <linux/slab.h> | |
37 | #include <linux/string.h> | |
38 | #include <linux/timer.h> | |
39 | #include <linux/delay.h> | |
40 | #include <linux/module.h> | |
41 | #include <linux/netdevice.h> | |
42 | #include <linux/arcdevice.h> | |
43 | #include <linux/com20020.h> | |
44 | ||
1da177e4 LT |
45 | #include <pcmcia/cistpl.h> |
46 | #include <pcmcia/ds.h> | |
47 | ||
48 | #include <asm/io.h> | |
1da177e4 LT |
49 | |
50 | #define VERSION "arcnet: COM20020 PCMCIA support loaded.\n" | |
51 | ||
1da177e4 LT |
52 | |
53 | static void regdump(struct net_device *dev) | |
54 | { | |
636b8116 | 55 | #ifdef DEBUG |
1da177e4 LT |
56 | int ioaddr = dev->base_addr; |
57 | int count; | |
58 | ||
636b8116 | 59 | netdev_dbg(dev, "register dump:\n"); |
1da177e4 LT |
60 | for (count = ioaddr; count < ioaddr + 16; count++) |
61 | { | |
62 | if (!(count % 16)) | |
636b8116 JP |
63 | pr_cont("%04X:", count); |
64 | pr_cont(" %02X", inb(count)); | |
1da177e4 | 65 | } |
636b8116 | 66 | pr_cont("\n"); |
1da177e4 | 67 | |
636b8116 | 68 | netdev_dbg(dev, "buffer0 dump:\n"); |
1da177e4 LT |
69 | /* set up the address register */ |
70 | count = 0; | |
71 | outb((count >> 8) | RDDATAflag | AUTOINCflag, _ADDR_HI); | |
72 | outb(count & 0xff, _ADDR_LO); | |
73 | ||
74 | for (count = 0; count < 256+32; count++) | |
75 | { | |
76 | if (!(count % 16)) | |
636b8116 | 77 | pr_cont("%04X:", count); |
1da177e4 LT |
78 | |
79 | /* copy the data */ | |
636b8116 | 80 | pr_cont(" %02X", inb(_MEMDATA)); |
1da177e4 | 81 | } |
636b8116 JP |
82 | pr_cont("\n"); |
83 | #endif | |
1da177e4 LT |
84 | } |
85 | ||
1da177e4 LT |
86 | |
87 | ||
88 | /*====================================================================*/ | |
89 | ||
90 | /* Parameters that can be set with 'insmod' */ | |
91 | ||
92 | static int node; | |
93 | static int timeout = 3; | |
94 | static int backplane; | |
95 | static int clockp; | |
96 | static int clockm; | |
97 | ||
98 | module_param(node, int, 0); | |
99 | module_param(timeout, int, 0); | |
100 | module_param(backplane, int, 0); | |
101 | module_param(clockp, int, 0); | |
102 | module_param(clockm, int, 0); | |
103 | ||
104 | MODULE_LICENSE("GPL"); | |
105 | ||
106 | /*====================================================================*/ | |
107 | ||
15b99ac1 | 108 | static int com20020_config(struct pcmcia_device *link); |
fba395ee | 109 | static void com20020_release(struct pcmcia_device *link); |
1da177e4 | 110 | |
cc3b4866 | 111 | static void com20020_detach(struct pcmcia_device *p_dev); |
1da177e4 | 112 | |
1da177e4 LT |
113 | /*====================================================================*/ |
114 | ||
115 | typedef struct com20020_dev_t { | |
116 | struct net_device *dev; | |
1da177e4 LT |
117 | } com20020_dev_t; |
118 | ||
15b99ac1 | 119 | static int com20020_probe(struct pcmcia_device *p_dev) |
1da177e4 | 120 | { |
1da177e4 LT |
121 | com20020_dev_t *info; |
122 | struct net_device *dev; | |
1da177e4 | 123 | struct arcnet_local *lp; |
f8cfa618 | 124 | |
dd0fab5b | 125 | dev_dbg(&p_dev->dev, "com20020_attach()\n"); |
1da177e4 LT |
126 | |
127 | /* Create new network device */ | |
dd00cc48 | 128 | info = kzalloc(sizeof(struct com20020_dev_t), GFP_KERNEL); |
1da177e4 LT |
129 | if (!info) |
130 | goto fail_alloc_info; | |
131 | ||
132 | dev = alloc_arcdev(""); | |
133 | if (!dev) | |
134 | goto fail_alloc_dev; | |
135 | ||
4cf1653a | 136 | lp = netdev_priv(dev); |
1da177e4 LT |
137 | lp->timeout = timeout; |
138 | lp->backplane = backplane; | |
139 | lp->clockp = clockp; | |
140 | lp->clockm = clockm & 3; | |
141 | lp->hw.owner = THIS_MODULE; | |
142 | ||
143 | /* fill in our module parameters as defaults */ | |
144 | dev->dev_addr[0] = node; | |
145 | ||
90abdc3b DB |
146 | p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8; |
147 | p_dev->resource[0]->end = 16; | |
1ac71e5a | 148 | p_dev->config_flags |= CONF_ENABLE_IRQ; |
1da177e4 | 149 | |
5fa9167a | 150 | info->dev = dev; |
fd238232 | 151 | p_dev->priv = info; |
1da177e4 | 152 | |
15b99ac1 | 153 | return com20020_config(p_dev); |
1da177e4 LT |
154 | |
155 | fail_alloc_dev: | |
156 | kfree(info); | |
157 | fail_alloc_info: | |
f8cfa618 | 158 | return -ENOMEM; |
1da177e4 LT |
159 | } /* com20020_attach */ |
160 | ||
fba395ee | 161 | static void com20020_detach(struct pcmcia_device *link) |
1da177e4 LT |
162 | { |
163 | struct com20020_dev_t *info = link->priv; | |
b4635811 DB |
164 | struct net_device *dev = info->dev; |
165 | ||
dd0fab5b | 166 | dev_dbg(&link->dev, "detach...\n"); |
1da177e4 | 167 | |
dd0fab5b | 168 | dev_dbg(&link->dev, "com20020_detach\n"); |
1da177e4 | 169 | |
c7c2fa07 | 170 | dev_dbg(&link->dev, "unregister...\n"); |
1da177e4 | 171 | |
c7c2fa07 | 172 | unregister_netdev(dev); |
b4635811 | 173 | |
c7c2fa07 DB |
174 | /* |
175 | * this is necessary because we register our IRQ separately | |
176 | * from card services. | |
177 | */ | |
178 | if (dev->irq) | |
1da177e4 | 179 | free_irq(dev->irq, dev); |
1da177e4 | 180 | |
e2d40963 | 181 | com20020_release(link); |
1da177e4 | 182 | |
1da177e4 | 183 | /* Unlink device structure, free bits */ |
dd0fab5b | 184 | dev_dbg(&link->dev, "unlinking...\n"); |
1da177e4 LT |
185 | if (link->priv) |
186 | { | |
187 | dev = info->dev; | |
188 | if (dev) | |
189 | { | |
dd0fab5b | 190 | dev_dbg(&link->dev, "kfree...\n"); |
1da177e4 LT |
191 | free_netdev(dev); |
192 | } | |
dd0fab5b | 193 | dev_dbg(&link->dev, "kfree2...\n"); |
1da177e4 LT |
194 | kfree(info); |
195 | } | |
1da177e4 LT |
196 | |
197 | } /* com20020_detach */ | |
198 | ||
15b99ac1 | 199 | static int com20020_config(struct pcmcia_device *link) |
1da177e4 LT |
200 | { |
201 | struct arcnet_local *lp; | |
1da177e4 LT |
202 | com20020_dev_t *info; |
203 | struct net_device *dev; | |
dd0fab5b | 204 | int i, ret; |
1da177e4 LT |
205 | int ioaddr; |
206 | ||
1da177e4 LT |
207 | info = link->priv; |
208 | dev = info->dev; | |
209 | ||
dd0fab5b | 210 | dev_dbg(&link->dev, "config...\n"); |
1da177e4 | 211 | |
dd0fab5b | 212 | dev_dbg(&link->dev, "com20020_config\n"); |
1da177e4 | 213 | |
90abdc3b DB |
214 | dev_dbg(&link->dev, "baseport1 is %Xh\n", |
215 | (unsigned int) link->resource[0]->start); | |
216 | ||
4c89e88b | 217 | i = -ENODEV; |
90abdc3b DB |
218 | link->io_lines = 16; |
219 | ||
220 | if (!link->resource[0]->start) | |
1da177e4 LT |
221 | { |
222 | for (ioaddr = 0x100; ioaddr < 0x400; ioaddr += 0x10) | |
223 | { | |
90abdc3b DB |
224 | link->resource[0]->start = ioaddr; |
225 | i = pcmcia_request_io(link); | |
4c89e88b | 226 | if (i == 0) |
1da177e4 LT |
227 | break; |
228 | } | |
229 | } | |
230 | else | |
90abdc3b | 231 | i = pcmcia_request_io(link); |
1da177e4 | 232 | |
4c89e88b | 233 | if (i != 0) |
1da177e4 | 234 | { |
dd0fab5b | 235 | dev_dbg(&link->dev, "requestIO failed totally!\n"); |
1da177e4 LT |
236 | goto failed; |
237 | } | |
238 | ||
9a017a91 | 239 | ioaddr = dev->base_addr = link->resource[0]->start; |
dd0fab5b | 240 | dev_dbg(&link->dev, "got ioaddr %Xh\n", ioaddr); |
1da177e4 | 241 | |
5fa9167a | 242 | dev_dbg(&link->dev, "request IRQ %d\n", |
eb14120f DB |
243 | link->irq); |
244 | if (!link->irq) | |
1da177e4 | 245 | { |
dd0fab5b | 246 | dev_dbg(&link->dev, "requestIRQ failed totally!\n"); |
1da177e4 LT |
247 | goto failed; |
248 | } | |
249 | ||
eb14120f | 250 | dev->irq = link->irq; |
1da177e4 | 251 | |
1ac71e5a | 252 | ret = pcmcia_enable_device(link); |
dd0fab5b DB |
253 | if (ret) |
254 | goto failed; | |
1da177e4 LT |
255 | |
256 | if (com20020_check(dev)) | |
257 | { | |
258 | regdump(dev); | |
259 | goto failed; | |
260 | } | |
261 | ||
4cf1653a | 262 | lp = netdev_priv(dev); |
1da177e4 LT |
263 | lp->card_name = "PCMCIA COM20020"; |
264 | lp->card_flags = ARC_CAN_10MBIT; /* pretend all of them can 10Mbit */ | |
265 | ||
dd2e5a15 | 266 | SET_NETDEV_DEV(dev, &link->dev); |
1da177e4 LT |
267 | |
268 | i = com20020_found(dev, 0); /* calls register_netdev */ | |
269 | ||
270 | if (i != 0) { | |
636b8116 JP |
271 | dev_notice(&link->dev, |
272 | "com20020_found() failed\n"); | |
1da177e4 LT |
273 | goto failed; |
274 | } | |
275 | ||
636b8116 JP |
276 | netdev_dbg(dev, "port %#3lx, irq %d\n", |
277 | dev->base_addr, dev->irq); | |
15b99ac1 | 278 | return 0; |
1da177e4 | 279 | |
1da177e4 | 280 | failed: |
dd0fab5b | 281 | dev_dbg(&link->dev, "com20020_config failed...\n"); |
1da177e4 | 282 | com20020_release(link); |
15b99ac1 | 283 | return -ENODEV; |
1da177e4 LT |
284 | } /* com20020_config */ |
285 | ||
fba395ee | 286 | static void com20020_release(struct pcmcia_device *link) |
1da177e4 | 287 | { |
dd0fab5b | 288 | dev_dbg(&link->dev, "com20020_release\n"); |
fba395ee | 289 | pcmcia_disable_device(link); |
1da177e4 LT |
290 | } |
291 | ||
fba395ee | 292 | static int com20020_suspend(struct pcmcia_device *link) |
98e4c28b | 293 | { |
98e4c28b DB |
294 | com20020_dev_t *info = link->priv; |
295 | struct net_device *dev = info->dev; | |
296 | ||
e2d40963 | 297 | if (link->open) |
8661bb5b | 298 | netif_device_detach(dev); |
98e4c28b DB |
299 | |
300 | return 0; | |
301 | } | |
302 | ||
fba395ee | 303 | static int com20020_resume(struct pcmcia_device *link) |
98e4c28b | 304 | { |
98e4c28b DB |
305 | com20020_dev_t *info = link->priv; |
306 | struct net_device *dev = info->dev; | |
307 | ||
e2d40963 | 308 | if (link->open) { |
8661bb5b | 309 | int ioaddr = dev->base_addr; |
4cf1653a | 310 | struct arcnet_local *lp = netdev_priv(dev); |
8661bb5b DB |
311 | ARCRESET; |
312 | } | |
98e4c28b DB |
313 | |
314 | return 0; | |
315 | } | |
316 | ||
25f8f54f | 317 | static const struct pcmcia_device_id com20020_ids[] = { |
6bb1c39a MS |
318 | PCMCIA_DEVICE_PROD_ID12("Contemporary Control Systems, Inc.", |
319 | "PCM20 Arcnet Adapter", 0x59991666, 0x95dfffaf), | |
320 | PCMCIA_DEVICE_PROD_ID12("SoHard AG", | |
321 | "SH ARC PCMCIA", 0xf8991729, 0x69dff0c7), | |
7fb22bb4 DB |
322 | PCMCIA_DEVICE_NULL |
323 | }; | |
324 | MODULE_DEVICE_TABLE(pcmcia, com20020_ids); | |
1da177e4 LT |
325 | |
326 | static struct pcmcia_driver com20020_cs_driver = { | |
327 | .owner = THIS_MODULE, | |
2e9b981a | 328 | .name = "com20020_cs", |
15b99ac1 | 329 | .probe = com20020_probe, |
cc3b4866 | 330 | .remove = com20020_detach, |
7fb22bb4 | 331 | .id_table = com20020_ids, |
98e4c28b DB |
332 | .suspend = com20020_suspend, |
333 | .resume = com20020_resume, | |
1da177e4 | 334 | }; |
fdd3f29e | 335 | module_pcmcia_driver(com20020_cs_driver); |