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 | ||
15b99ac1 | 115 | static int com20020_probe(struct pcmcia_device *p_dev) |
1da177e4 | 116 | { |
2dfd2533 | 117 | struct com20020_dev *info; |
1da177e4 | 118 | struct net_device *dev; |
1da177e4 | 119 | struct arcnet_local *lp; |
f8cfa618 | 120 | |
dd0fab5b | 121 | dev_dbg(&p_dev->dev, "com20020_attach()\n"); |
1da177e4 LT |
122 | |
123 | /* Create new network device */ | |
2dfd2533 | 124 | info = kzalloc(sizeof(*info), GFP_KERNEL); |
1da177e4 LT |
125 | if (!info) |
126 | goto fail_alloc_info; | |
127 | ||
128 | dev = alloc_arcdev(""); | |
129 | if (!dev) | |
130 | goto fail_alloc_dev; | |
131 | ||
4cf1653a | 132 | lp = netdev_priv(dev); |
1da177e4 LT |
133 | lp->timeout = timeout; |
134 | lp->backplane = backplane; | |
135 | lp->clockp = clockp; | |
136 | lp->clockm = clockm & 3; | |
137 | lp->hw.owner = THIS_MODULE; | |
138 | ||
139 | /* fill in our module parameters as defaults */ | |
140 | dev->dev_addr[0] = node; | |
141 | ||
90abdc3b DB |
142 | p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8; |
143 | p_dev->resource[0]->end = 16; | |
1ac71e5a | 144 | p_dev->config_flags |= CONF_ENABLE_IRQ; |
1da177e4 | 145 | |
5fa9167a | 146 | info->dev = dev; |
fd238232 | 147 | p_dev->priv = info; |
1da177e4 | 148 | |
15b99ac1 | 149 | return com20020_config(p_dev); |
1da177e4 LT |
150 | |
151 | fail_alloc_dev: | |
152 | kfree(info); | |
153 | fail_alloc_info: | |
f8cfa618 | 154 | return -ENOMEM; |
1da177e4 LT |
155 | } /* com20020_attach */ |
156 | ||
fba395ee | 157 | static void com20020_detach(struct pcmcia_device *link) |
1da177e4 | 158 | { |
2dfd2533 | 159 | struct com20020_dev *info = link->priv; |
b4635811 DB |
160 | struct net_device *dev = info->dev; |
161 | ||
dd0fab5b | 162 | dev_dbg(&link->dev, "detach...\n"); |
1da177e4 | 163 | |
dd0fab5b | 164 | dev_dbg(&link->dev, "com20020_detach\n"); |
1da177e4 | 165 | |
c7c2fa07 | 166 | dev_dbg(&link->dev, "unregister...\n"); |
1da177e4 | 167 | |
c7c2fa07 | 168 | unregister_netdev(dev); |
b4635811 | 169 | |
c7c2fa07 DB |
170 | /* |
171 | * this is necessary because we register our IRQ separately | |
172 | * from card services. | |
173 | */ | |
174 | if (dev->irq) | |
1da177e4 | 175 | free_irq(dev->irq, dev); |
1da177e4 | 176 | |
e2d40963 | 177 | com20020_release(link); |
1da177e4 | 178 | |
1da177e4 | 179 | /* Unlink device structure, free bits */ |
dd0fab5b | 180 | dev_dbg(&link->dev, "unlinking...\n"); |
1da177e4 LT |
181 | if (link->priv) |
182 | { | |
183 | dev = info->dev; | |
184 | if (dev) | |
185 | { | |
dd0fab5b | 186 | dev_dbg(&link->dev, "kfree...\n"); |
1da177e4 LT |
187 | free_netdev(dev); |
188 | } | |
dd0fab5b | 189 | dev_dbg(&link->dev, "kfree2...\n"); |
1da177e4 LT |
190 | kfree(info); |
191 | } | |
1da177e4 LT |
192 | |
193 | } /* com20020_detach */ | |
194 | ||
15b99ac1 | 195 | static int com20020_config(struct pcmcia_device *link) |
1da177e4 LT |
196 | { |
197 | struct arcnet_local *lp; | |
2dfd2533 | 198 | struct com20020_dev *info; |
1da177e4 | 199 | struct net_device *dev; |
dd0fab5b | 200 | int i, ret; |
1da177e4 LT |
201 | int ioaddr; |
202 | ||
1da177e4 LT |
203 | info = link->priv; |
204 | dev = info->dev; | |
205 | ||
dd0fab5b | 206 | dev_dbg(&link->dev, "config...\n"); |
1da177e4 | 207 | |
dd0fab5b | 208 | dev_dbg(&link->dev, "com20020_config\n"); |
1da177e4 | 209 | |
90abdc3b DB |
210 | dev_dbg(&link->dev, "baseport1 is %Xh\n", |
211 | (unsigned int) link->resource[0]->start); | |
212 | ||
4c89e88b | 213 | i = -ENODEV; |
90abdc3b DB |
214 | link->io_lines = 16; |
215 | ||
216 | if (!link->resource[0]->start) | |
1da177e4 LT |
217 | { |
218 | for (ioaddr = 0x100; ioaddr < 0x400; ioaddr += 0x10) | |
219 | { | |
90abdc3b DB |
220 | link->resource[0]->start = ioaddr; |
221 | i = pcmcia_request_io(link); | |
4c89e88b | 222 | if (i == 0) |
1da177e4 LT |
223 | break; |
224 | } | |
225 | } | |
226 | else | |
90abdc3b | 227 | i = pcmcia_request_io(link); |
1da177e4 | 228 | |
4c89e88b | 229 | if (i != 0) |
1da177e4 | 230 | { |
dd0fab5b | 231 | dev_dbg(&link->dev, "requestIO failed totally!\n"); |
1da177e4 LT |
232 | goto failed; |
233 | } | |
234 | ||
9a017a91 | 235 | ioaddr = dev->base_addr = link->resource[0]->start; |
dd0fab5b | 236 | dev_dbg(&link->dev, "got ioaddr %Xh\n", ioaddr); |
1da177e4 | 237 | |
5fa9167a | 238 | dev_dbg(&link->dev, "request IRQ %d\n", |
eb14120f DB |
239 | link->irq); |
240 | if (!link->irq) | |
1da177e4 | 241 | { |
dd0fab5b | 242 | dev_dbg(&link->dev, "requestIRQ failed totally!\n"); |
1da177e4 LT |
243 | goto failed; |
244 | } | |
245 | ||
eb14120f | 246 | dev->irq = link->irq; |
1da177e4 | 247 | |
1ac71e5a | 248 | ret = pcmcia_enable_device(link); |
dd0fab5b DB |
249 | if (ret) |
250 | goto failed; | |
1da177e4 LT |
251 | |
252 | if (com20020_check(dev)) | |
253 | { | |
254 | regdump(dev); | |
255 | goto failed; | |
256 | } | |
257 | ||
4cf1653a | 258 | lp = netdev_priv(dev); |
1da177e4 LT |
259 | lp->card_name = "PCMCIA COM20020"; |
260 | lp->card_flags = ARC_CAN_10MBIT; /* pretend all of them can 10Mbit */ | |
261 | ||
dd2e5a15 | 262 | SET_NETDEV_DEV(dev, &link->dev); |
1da177e4 LT |
263 | |
264 | i = com20020_found(dev, 0); /* calls register_netdev */ | |
265 | ||
266 | if (i != 0) { | |
636b8116 JP |
267 | dev_notice(&link->dev, |
268 | "com20020_found() failed\n"); | |
1da177e4 LT |
269 | goto failed; |
270 | } | |
271 | ||
636b8116 JP |
272 | netdev_dbg(dev, "port %#3lx, irq %d\n", |
273 | dev->base_addr, dev->irq); | |
15b99ac1 | 274 | return 0; |
1da177e4 | 275 | |
1da177e4 | 276 | failed: |
dd0fab5b | 277 | dev_dbg(&link->dev, "com20020_config failed...\n"); |
1da177e4 | 278 | com20020_release(link); |
15b99ac1 | 279 | return -ENODEV; |
1da177e4 LT |
280 | } /* com20020_config */ |
281 | ||
fba395ee | 282 | static void com20020_release(struct pcmcia_device *link) |
1da177e4 | 283 | { |
dd0fab5b | 284 | dev_dbg(&link->dev, "com20020_release\n"); |
fba395ee | 285 | pcmcia_disable_device(link); |
1da177e4 LT |
286 | } |
287 | ||
fba395ee | 288 | static int com20020_suspend(struct pcmcia_device *link) |
98e4c28b | 289 | { |
2dfd2533 | 290 | struct com20020_dev *info = link->priv; |
98e4c28b DB |
291 | struct net_device *dev = info->dev; |
292 | ||
e2d40963 | 293 | if (link->open) |
8661bb5b | 294 | netif_device_detach(dev); |
98e4c28b DB |
295 | |
296 | return 0; | |
297 | } | |
298 | ||
fba395ee | 299 | static int com20020_resume(struct pcmcia_device *link) |
98e4c28b | 300 | { |
2dfd2533 | 301 | struct com20020_dev *info = link->priv; |
98e4c28b DB |
302 | struct net_device *dev = info->dev; |
303 | ||
e2d40963 | 304 | if (link->open) { |
8661bb5b | 305 | int ioaddr = dev->base_addr; |
4cf1653a | 306 | struct arcnet_local *lp = netdev_priv(dev); |
8661bb5b DB |
307 | ARCRESET; |
308 | } | |
98e4c28b DB |
309 | |
310 | return 0; | |
311 | } | |
312 | ||
25f8f54f | 313 | static const struct pcmcia_device_id com20020_ids[] = { |
6bb1c39a MS |
314 | PCMCIA_DEVICE_PROD_ID12("Contemporary Control Systems, Inc.", |
315 | "PCM20 Arcnet Adapter", 0x59991666, 0x95dfffaf), | |
316 | PCMCIA_DEVICE_PROD_ID12("SoHard AG", | |
317 | "SH ARC PCMCIA", 0xf8991729, 0x69dff0c7), | |
7fb22bb4 DB |
318 | PCMCIA_DEVICE_NULL |
319 | }; | |
320 | MODULE_DEVICE_TABLE(pcmcia, com20020_ids); | |
1da177e4 LT |
321 | |
322 | static struct pcmcia_driver com20020_cs_driver = { | |
323 | .owner = THIS_MODULE, | |
2e9b981a | 324 | .name = "com20020_cs", |
15b99ac1 | 325 | .probe = com20020_probe, |
cc3b4866 | 326 | .remove = com20020_detach, |
7fb22bb4 | 327 | .id_table = com20020_ids, |
98e4c28b DB |
328 | .suspend = com20020_suspend, |
329 | .resume = com20020_resume, | |
1da177e4 | 330 | }; |
fdd3f29e | 331 | module_pcmcia_driver(com20020_cs_driver); |