Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * Linux ARCnet driver - COM20020 PCMCIA support | |
cb334648 | 3 | * |
1da177e4 LT |
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. | |
cb334648 | 22 | * |
1da177e4 LT |
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 | * ********************** | |
cb334648 | 29 | * |
1da177e4 LT |
30 | * For more details, see drivers/net/arcnet.c |
31 | * | |
32 | * ********************** | |
33 | */ | |
05a24b23 JP |
34 | |
35 | #define pr_fmt(fmt) "arcnet:" KBUILD_MODNAME ": " fmt | |
36 | ||
1da177e4 | 37 | #include <linux/kernel.h> |
1da177e4 LT |
38 | #include <linux/ptrace.h> |
39 | #include <linux/slab.h> | |
40 | #include <linux/string.h> | |
41 | #include <linux/timer.h> | |
42 | #include <linux/delay.h> | |
43 | #include <linux/module.h> | |
44 | #include <linux/netdevice.h> | |
26c6d281 | 45 | #include <linux/io.h> |
1da177e4 LT |
46 | #include <pcmcia/cistpl.h> |
47 | #include <pcmcia/ds.h> | |
48 | ||
26c6d281 JP |
49 | #include "arcdevice.h" |
50 | #include "com20020.h" | |
1da177e4 | 51 | |
1da177e4 LT |
52 | static void regdump(struct net_device *dev) |
53 | { | |
636b8116 | 54 | #ifdef DEBUG |
cb334648 JP |
55 | int ioaddr = dev->base_addr; |
56 | int count; | |
57 | ||
58 | netdev_dbg(dev, "register dump:\n"); | |
0fec6513 | 59 | for (count = 0; count < 16; count++) { |
cb334648 | 60 | if (!(count % 16)) |
0fec6513 JP |
61 | pr_cont("%04X:", ioaddr + count); |
62 | pr_cont(" %02X", arcnet_inb(ioaddr, count)); | |
cb334648 JP |
63 | } |
64 | pr_cont("\n"); | |
65 | ||
66 | netdev_dbg(dev, "buffer0 dump:\n"); | |
1da177e4 | 67 | /* set up the address register */ |
cb334648 | 68 | count = 0; |
0fec6513 | 69 | arcnet_outb((count >> 8) | RDDATAflag | AUTOINCflag, |
7cfabe4f | 70 | ioaddr, COM20020_REG_W_ADDR_HI); |
0fec6513 | 71 | arcnet_outb(count & 0xff, ioaddr, COM20020_REG_W_ADDR_LO); |
cb334648 | 72 | |
7f5e760c | 73 | for (count = 0; count < 256 + 32; count++) { |
cb334648 JP |
74 | if (!(count % 16)) |
75 | pr_cont("%04X:", count); | |
76 | ||
77 | /* copy the data */ | |
0fec6513 | 78 | pr_cont(" %02X", arcnet_inb(ioaddr, COM20020_REG_RW_MEMDATA)); |
cb334648 JP |
79 | } |
80 | pr_cont("\n"); | |
636b8116 | 81 | #endif |
1da177e4 LT |
82 | } |
83 | ||
1da177e4 LT |
84 | /*====================================================================*/ |
85 | ||
86 | /* Parameters that can be set with 'insmod' */ | |
87 | ||
88 | static int node; | |
89 | static int timeout = 3; | |
90 | static int backplane; | |
91 | static int clockp; | |
92 | static int clockm; | |
93 | ||
94 | module_param(node, int, 0); | |
95 | module_param(timeout, int, 0); | |
96 | module_param(backplane, int, 0); | |
97 | module_param(clockp, int, 0); | |
98 | module_param(clockm, int, 0); | |
99 | ||
538b22e7 | 100 | MODULE_DESCRIPTION("ARCnet COM20020 chipset PCMCIA driver"); |
1da177e4 LT |
101 | MODULE_LICENSE("GPL"); |
102 | ||
103 | /*====================================================================*/ | |
104 | ||
15b99ac1 | 105 | static int com20020_config(struct pcmcia_device *link); |
fba395ee | 106 | static void com20020_release(struct pcmcia_device *link); |
1da177e4 | 107 | |
cc3b4866 | 108 | static void com20020_detach(struct pcmcia_device *p_dev); |
1da177e4 | 109 | |
1da177e4 LT |
110 | /*====================================================================*/ |
111 | ||
15b99ac1 | 112 | static int com20020_probe(struct pcmcia_device *p_dev) |
1da177e4 | 113 | { |
cb334648 JP |
114 | struct com20020_dev *info; |
115 | struct net_device *dev; | |
116 | struct arcnet_local *lp; | |
1c40cde6 | 117 | int ret = -ENOMEM; |
f8cfa618 | 118 | |
cb334648 | 119 | dev_dbg(&p_dev->dev, "com20020_attach()\n"); |
1da177e4 | 120 | |
cb334648 JP |
121 | /* Create new network device */ |
122 | info = kzalloc(sizeof(*info), GFP_KERNEL); | |
123 | if (!info) | |
124 | goto fail_alloc_info; | |
1da177e4 | 125 | |
cb334648 JP |
126 | dev = alloc_arcdev(""); |
127 | if (!dev) | |
128 | goto fail_alloc_dev; | |
1da177e4 | 129 | |
cb334648 JP |
130 | lp = netdev_priv(dev); |
131 | lp->timeout = timeout; | |
132 | lp->backplane = backplane; | |
133 | lp->clockp = clockp; | |
134 | lp->clockm = clockm & 3; | |
135 | lp->hw.owner = THIS_MODULE; | |
1da177e4 | 136 | |
cb334648 | 137 | /* fill in our module parameters as defaults */ |
13b5ffa0 | 138 | arcnet_set_addr(dev, node); |
1da177e4 | 139 | |
cb334648 JP |
140 | p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8; |
141 | p_dev->resource[0]->end = 16; | |
142 | p_dev->config_flags |= CONF_ENABLE_IRQ; | |
1da177e4 | 143 | |
cb334648 JP |
144 | info->dev = dev; |
145 | p_dev->priv = info; | |
1da177e4 | 146 | |
1c40cde6 WH |
147 | ret = com20020_config(p_dev); |
148 | if (ret) | |
149 | goto fail_config; | |
1da177e4 | 150 | |
1c40cde6 WH |
151 | return 0; |
152 | ||
153 | fail_config: | |
154 | free_arcdev(dev); | |
1da177e4 | 155 | fail_alloc_dev: |
cb334648 | 156 | kfree(info); |
1da177e4 | 157 | fail_alloc_info: |
1c40cde6 | 158 | return ret; |
1da177e4 LT |
159 | } /* com20020_attach */ |
160 | ||
fba395ee | 161 | static void com20020_detach(struct pcmcia_device *link) |
1da177e4 | 162 | { |
cb334648 JP |
163 | struct com20020_dev *info = link->priv; |
164 | struct net_device *dev = info->dev; | |
b4635811 | 165 | |
cb334648 | 166 | dev_dbg(&link->dev, "detach...\n"); |
1da177e4 | 167 | |
cb334648 | 168 | dev_dbg(&link->dev, "com20020_detach\n"); |
1da177e4 | 169 | |
cb334648 | 170 | dev_dbg(&link->dev, "unregister...\n"); |
1da177e4 | 171 | |
cb334648 | 172 | unregister_netdev(dev); |
b4635811 | 173 | |
f2f0a16b | 174 | /* this is necessary because we register our IRQ separately |
cb334648 JP |
175 | * from card services. |
176 | */ | |
177 | if (dev->irq) | |
178 | free_irq(dev->irq, dev); | |
1da177e4 | 179 | |
cb334648 | 180 | com20020_release(link); |
1da177e4 | 181 | |
cb334648 JP |
182 | /* Unlink device structure, free bits */ |
183 | dev_dbg(&link->dev, "unlinking...\n"); | |
7f5e760c | 184 | if (link->priv) { |
cb334648 | 185 | dev = info->dev; |
7f5e760c | 186 | if (dev) { |
cb334648 | 187 | dev_dbg(&link->dev, "kfree...\n"); |
01365633 | 188 | free_arcdev(dev); |
cb334648 JP |
189 | } |
190 | dev_dbg(&link->dev, "kfree2...\n"); | |
191 | kfree(info); | |
1da177e4 | 192 | } |
1da177e4 LT |
193 | |
194 | } /* com20020_detach */ | |
195 | ||
15b99ac1 | 196 | static int com20020_config(struct pcmcia_device *link) |
1da177e4 | 197 | { |
cb334648 JP |
198 | struct arcnet_local *lp; |
199 | struct com20020_dev *info; | |
200 | struct net_device *dev; | |
201 | int i, ret; | |
202 | int ioaddr; | |
203 | ||
204 | info = link->priv; | |
205 | dev = info->dev; | |
1da177e4 | 206 | |
cb334648 | 207 | dev_dbg(&link->dev, "config...\n"); |
1da177e4 | 208 | |
cb334648 | 209 | dev_dbg(&link->dev, "com20020_config\n"); |
1da177e4 | 210 | |
cb334648 JP |
211 | dev_dbg(&link->dev, "baseport1 is %Xh\n", |
212 | (unsigned int)link->resource[0]->start); | |
1da177e4 | 213 | |
cb334648 JP |
214 | i = -ENODEV; |
215 | link->io_lines = 16; | |
90abdc3b | 216 | |
7f5e760c JP |
217 | if (!link->resource[0]->start) { |
218 | for (ioaddr = 0x100; ioaddr < 0x400; ioaddr += 0x10) { | |
cb334648 JP |
219 | link->resource[0]->start = ioaddr; |
220 | i = pcmcia_request_io(link); | |
221 | if (i == 0) | |
222 | break; | |
223 | } | |
7f5e760c | 224 | } else { |
cb334648 | 225 | i = pcmcia_request_io(link); |
7f5e760c | 226 | } |
cb334648 | 227 | |
7f5e760c | 228 | if (i != 0) { |
cb334648 JP |
229 | dev_dbg(&link->dev, "requestIO failed totally!\n"); |
230 | goto failed; | |
231 | } | |
232 | ||
233 | ioaddr = dev->base_addr = link->resource[0]->start; | |
234 | dev_dbg(&link->dev, "got ioaddr %Xh\n", ioaddr); | |
235 | ||
236 | dev_dbg(&link->dev, "request IRQ %d\n", | |
237 | link->irq); | |
7f5e760c | 238 | if (!link->irq) { |
cb334648 JP |
239 | dev_dbg(&link->dev, "requestIRQ failed totally!\n"); |
240 | goto failed; | |
241 | } | |
90abdc3b | 242 | |
cb334648 JP |
243 | dev->irq = link->irq; |
244 | ||
245 | ret = pcmcia_enable_device(link); | |
246 | if (ret) | |
247 | goto failed; | |
248 | ||
7f5e760c | 249 | if (com20020_check(dev)) { |
cb334648 JP |
250 | regdump(dev); |
251 | goto failed; | |
1da177e4 | 252 | } |
cb334648 JP |
253 | |
254 | lp = netdev_priv(dev); | |
255 | lp->card_name = "PCMCIA COM20020"; | |
256 | lp->card_flags = ARC_CAN_10MBIT; /* pretend all of them can 10Mbit */ | |
257 | ||
258 | SET_NETDEV_DEV(dev, &link->dev); | |
259 | ||
260 | i = com20020_found(dev, 0); /* calls register_netdev */ | |
261 | ||
262 | if (i != 0) { | |
263 | dev_notice(&link->dev, | |
264 | "com20020_found() failed\n"); | |
265 | goto failed; | |
266 | } | |
267 | ||
268 | netdev_dbg(dev, "port %#3lx, irq %d\n", | |
269 | dev->base_addr, dev->irq); | |
270 | return 0; | |
1da177e4 | 271 | |
1da177e4 | 272 | failed: |
cb334648 JP |
273 | dev_dbg(&link->dev, "com20020_config failed...\n"); |
274 | com20020_release(link); | |
275 | return -ENODEV; | |
1da177e4 LT |
276 | } /* com20020_config */ |
277 | ||
fba395ee | 278 | static void com20020_release(struct pcmcia_device *link) |
1da177e4 | 279 | { |
dd0fab5b | 280 | dev_dbg(&link->dev, "com20020_release\n"); |
fba395ee | 281 | pcmcia_disable_device(link); |
1da177e4 LT |
282 | } |
283 | ||
fba395ee | 284 | static int com20020_suspend(struct pcmcia_device *link) |
98e4c28b | 285 | { |
2dfd2533 | 286 | struct com20020_dev *info = link->priv; |
98e4c28b DB |
287 | struct net_device *dev = info->dev; |
288 | ||
e2d40963 | 289 | if (link->open) |
8661bb5b | 290 | netif_device_detach(dev); |
98e4c28b DB |
291 | |
292 | return 0; | |
293 | } | |
294 | ||
fba395ee | 295 | static int com20020_resume(struct pcmcia_device *link) |
98e4c28b | 296 | { |
2dfd2533 | 297 | struct com20020_dev *info = link->priv; |
98e4c28b DB |
298 | struct net_device *dev = info->dev; |
299 | ||
e2d40963 | 300 | if (link->open) { |
8661bb5b | 301 | int ioaddr = dev->base_addr; |
4cf1653a | 302 | struct arcnet_local *lp = netdev_priv(dev); |
01a1d5ac | 303 | |
0fec6513 JP |
304 | arcnet_outb(lp->config | 0x80, ioaddr, COM20020_REG_W_CONFIG); |
305 | udelay(5); | |
306 | arcnet_outb(lp->config, ioaddr, COM20020_REG_W_CONFIG); | |
8661bb5b | 307 | } |
98e4c28b DB |
308 | |
309 | return 0; | |
310 | } | |
311 | ||
25f8f54f | 312 | static const struct pcmcia_device_id com20020_ids[] = { |
6bb1c39a | 313 | PCMCIA_DEVICE_PROD_ID12("Contemporary Control Systems, Inc.", |
cb334648 | 314 | "PCM20 Arcnet Adapter", 0x59991666, 0x95dfffaf), |
6bb1c39a | 315 | PCMCIA_DEVICE_PROD_ID12("SoHard AG", |
cb334648 | 316 | "SH ARC PCMCIA", 0xf8991729, 0x69dff0c7), |
7fb22bb4 DB |
317 | PCMCIA_DEVICE_NULL |
318 | }; | |
319 | MODULE_DEVICE_TABLE(pcmcia, com20020_ids); | |
1da177e4 LT |
320 | |
321 | static struct pcmcia_driver com20020_cs_driver = { | |
322 | .owner = THIS_MODULE, | |
2e9b981a | 323 | .name = "com20020_cs", |
15b99ac1 | 324 | .probe = com20020_probe, |
cc3b4866 | 325 | .remove = com20020_detach, |
7fb22bb4 | 326 | .id_table = com20020_ids, |
98e4c28b DB |
327 | .suspend = com20020_suspend, |
328 | .resume = com20020_resume, | |
1da177e4 | 329 | }; |
fdd3f29e | 330 | module_pcmcia_driver(com20020_cs_driver); |