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 JP |
69 | arcnet_outb((count >> 8) | RDDATAflag | AUTOINCflag, |
70 | ioaddr, com20020_REG_W_ADDR_HI); | |
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 | ||
100 | MODULE_LICENSE("GPL"); | |
101 | ||
102 | /*====================================================================*/ | |
103 | ||
15b99ac1 | 104 | static int com20020_config(struct pcmcia_device *link); |
fba395ee | 105 | static void com20020_release(struct pcmcia_device *link); |
1da177e4 | 106 | |
cc3b4866 | 107 | static void com20020_detach(struct pcmcia_device *p_dev); |
1da177e4 | 108 | |
1da177e4 LT |
109 | /*====================================================================*/ |
110 | ||
15b99ac1 | 111 | static int com20020_probe(struct pcmcia_device *p_dev) |
1da177e4 | 112 | { |
cb334648 JP |
113 | struct com20020_dev *info; |
114 | struct net_device *dev; | |
115 | struct arcnet_local *lp; | |
f8cfa618 | 116 | |
cb334648 | 117 | dev_dbg(&p_dev->dev, "com20020_attach()\n"); |
1da177e4 | 118 | |
cb334648 JP |
119 | /* Create new network device */ |
120 | info = kzalloc(sizeof(*info), GFP_KERNEL); | |
121 | if (!info) | |
122 | goto fail_alloc_info; | |
1da177e4 | 123 | |
cb334648 JP |
124 | dev = alloc_arcdev(""); |
125 | if (!dev) | |
126 | goto fail_alloc_dev; | |
1da177e4 | 127 | |
cb334648 JP |
128 | lp = netdev_priv(dev); |
129 | lp->timeout = timeout; | |
130 | lp->backplane = backplane; | |
131 | lp->clockp = clockp; | |
132 | lp->clockm = clockm & 3; | |
133 | lp->hw.owner = THIS_MODULE; | |
1da177e4 | 134 | |
cb334648 JP |
135 | /* fill in our module parameters as defaults */ |
136 | dev->dev_addr[0] = node; | |
1da177e4 | 137 | |
cb334648 JP |
138 | p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8; |
139 | p_dev->resource[0]->end = 16; | |
140 | p_dev->config_flags |= CONF_ENABLE_IRQ; | |
1da177e4 | 141 | |
cb334648 JP |
142 | info->dev = dev; |
143 | p_dev->priv = info; | |
1da177e4 | 144 | |
cb334648 | 145 | return com20020_config(p_dev); |
1da177e4 LT |
146 | |
147 | fail_alloc_dev: | |
cb334648 | 148 | kfree(info); |
1da177e4 | 149 | fail_alloc_info: |
cb334648 | 150 | return -ENOMEM; |
1da177e4 LT |
151 | } /* com20020_attach */ |
152 | ||
fba395ee | 153 | static void com20020_detach(struct pcmcia_device *link) |
1da177e4 | 154 | { |
cb334648 JP |
155 | struct com20020_dev *info = link->priv; |
156 | struct net_device *dev = info->dev; | |
b4635811 | 157 | |
cb334648 | 158 | dev_dbg(&link->dev, "detach...\n"); |
1da177e4 | 159 | |
cb334648 | 160 | dev_dbg(&link->dev, "com20020_detach\n"); |
1da177e4 | 161 | |
cb334648 | 162 | dev_dbg(&link->dev, "unregister...\n"); |
1da177e4 | 163 | |
cb334648 | 164 | unregister_netdev(dev); |
b4635811 | 165 | |
f2f0a16b | 166 | /* this is necessary because we register our IRQ separately |
cb334648 JP |
167 | * from card services. |
168 | */ | |
169 | if (dev->irq) | |
170 | free_irq(dev->irq, dev); | |
1da177e4 | 171 | |
cb334648 | 172 | com20020_release(link); |
1da177e4 | 173 | |
cb334648 JP |
174 | /* Unlink device structure, free bits */ |
175 | dev_dbg(&link->dev, "unlinking...\n"); | |
7f5e760c | 176 | if (link->priv) { |
cb334648 | 177 | dev = info->dev; |
7f5e760c | 178 | if (dev) { |
cb334648 JP |
179 | dev_dbg(&link->dev, "kfree...\n"); |
180 | free_netdev(dev); | |
181 | } | |
182 | dev_dbg(&link->dev, "kfree2...\n"); | |
183 | kfree(info); | |
1da177e4 | 184 | } |
1da177e4 LT |
185 | |
186 | } /* com20020_detach */ | |
187 | ||
15b99ac1 | 188 | static int com20020_config(struct pcmcia_device *link) |
1da177e4 | 189 | { |
cb334648 JP |
190 | struct arcnet_local *lp; |
191 | struct com20020_dev *info; | |
192 | struct net_device *dev; | |
193 | int i, ret; | |
194 | int ioaddr; | |
195 | ||
196 | info = link->priv; | |
197 | dev = info->dev; | |
1da177e4 | 198 | |
cb334648 | 199 | dev_dbg(&link->dev, "config...\n"); |
1da177e4 | 200 | |
cb334648 | 201 | dev_dbg(&link->dev, "com20020_config\n"); |
1da177e4 | 202 | |
cb334648 JP |
203 | dev_dbg(&link->dev, "baseport1 is %Xh\n", |
204 | (unsigned int)link->resource[0]->start); | |
1da177e4 | 205 | |
cb334648 JP |
206 | i = -ENODEV; |
207 | link->io_lines = 16; | |
90abdc3b | 208 | |
7f5e760c JP |
209 | if (!link->resource[0]->start) { |
210 | for (ioaddr = 0x100; ioaddr < 0x400; ioaddr += 0x10) { | |
cb334648 JP |
211 | link->resource[0]->start = ioaddr; |
212 | i = pcmcia_request_io(link); | |
213 | if (i == 0) | |
214 | break; | |
215 | } | |
7f5e760c | 216 | } else { |
cb334648 | 217 | i = pcmcia_request_io(link); |
7f5e760c | 218 | } |
cb334648 | 219 | |
7f5e760c | 220 | if (i != 0) { |
cb334648 JP |
221 | dev_dbg(&link->dev, "requestIO failed totally!\n"); |
222 | goto failed; | |
223 | } | |
224 | ||
225 | ioaddr = dev->base_addr = link->resource[0]->start; | |
226 | dev_dbg(&link->dev, "got ioaddr %Xh\n", ioaddr); | |
227 | ||
228 | dev_dbg(&link->dev, "request IRQ %d\n", | |
229 | link->irq); | |
7f5e760c | 230 | if (!link->irq) { |
cb334648 JP |
231 | dev_dbg(&link->dev, "requestIRQ failed totally!\n"); |
232 | goto failed; | |
233 | } | |
90abdc3b | 234 | |
cb334648 JP |
235 | dev->irq = link->irq; |
236 | ||
237 | ret = pcmcia_enable_device(link); | |
238 | if (ret) | |
239 | goto failed; | |
240 | ||
7f5e760c | 241 | if (com20020_check(dev)) { |
cb334648 JP |
242 | regdump(dev); |
243 | goto failed; | |
1da177e4 | 244 | } |
cb334648 JP |
245 | |
246 | lp = netdev_priv(dev); | |
247 | lp->card_name = "PCMCIA COM20020"; | |
248 | lp->card_flags = ARC_CAN_10MBIT; /* pretend all of them can 10Mbit */ | |
249 | ||
250 | SET_NETDEV_DEV(dev, &link->dev); | |
251 | ||
252 | i = com20020_found(dev, 0); /* calls register_netdev */ | |
253 | ||
254 | if (i != 0) { | |
255 | dev_notice(&link->dev, | |
256 | "com20020_found() failed\n"); | |
257 | goto failed; | |
258 | } | |
259 | ||
260 | netdev_dbg(dev, "port %#3lx, irq %d\n", | |
261 | dev->base_addr, dev->irq); | |
262 | return 0; | |
1da177e4 | 263 | |
1da177e4 | 264 | failed: |
cb334648 JP |
265 | dev_dbg(&link->dev, "com20020_config failed...\n"); |
266 | com20020_release(link); | |
267 | return -ENODEV; | |
1da177e4 LT |
268 | } /* com20020_config */ |
269 | ||
fba395ee | 270 | static void com20020_release(struct pcmcia_device *link) |
1da177e4 | 271 | { |
dd0fab5b | 272 | dev_dbg(&link->dev, "com20020_release\n"); |
fba395ee | 273 | pcmcia_disable_device(link); |
1da177e4 LT |
274 | } |
275 | ||
fba395ee | 276 | static int com20020_suspend(struct pcmcia_device *link) |
98e4c28b | 277 | { |
2dfd2533 | 278 | struct com20020_dev *info = link->priv; |
98e4c28b DB |
279 | struct net_device *dev = info->dev; |
280 | ||
e2d40963 | 281 | if (link->open) |
8661bb5b | 282 | netif_device_detach(dev); |
98e4c28b DB |
283 | |
284 | return 0; | |
285 | } | |
286 | ||
fba395ee | 287 | static int com20020_resume(struct pcmcia_device *link) |
98e4c28b | 288 | { |
2dfd2533 | 289 | struct com20020_dev *info = link->priv; |
98e4c28b DB |
290 | struct net_device *dev = info->dev; |
291 | ||
e2d40963 | 292 | if (link->open) { |
8661bb5b | 293 | int ioaddr = dev->base_addr; |
4cf1653a | 294 | struct arcnet_local *lp = netdev_priv(dev); |
01a1d5ac | 295 | |
0fec6513 JP |
296 | arcnet_outb(lp->config | 0x80, ioaddr, COM20020_REG_W_CONFIG); |
297 | udelay(5); | |
298 | arcnet_outb(lp->config, ioaddr, COM20020_REG_W_CONFIG); | |
8661bb5b | 299 | } |
98e4c28b DB |
300 | |
301 | return 0; | |
302 | } | |
303 | ||
25f8f54f | 304 | static const struct pcmcia_device_id com20020_ids[] = { |
6bb1c39a | 305 | PCMCIA_DEVICE_PROD_ID12("Contemporary Control Systems, Inc.", |
cb334648 | 306 | "PCM20 Arcnet Adapter", 0x59991666, 0x95dfffaf), |
6bb1c39a | 307 | PCMCIA_DEVICE_PROD_ID12("SoHard AG", |
cb334648 | 308 | "SH ARC PCMCIA", 0xf8991729, 0x69dff0c7), |
7fb22bb4 DB |
309 | PCMCIA_DEVICE_NULL |
310 | }; | |
311 | MODULE_DEVICE_TABLE(pcmcia, com20020_ids); | |
1da177e4 LT |
312 | |
313 | static struct pcmcia_driver com20020_cs_driver = { | |
314 | .owner = THIS_MODULE, | |
2e9b981a | 315 | .name = "com20020_cs", |
15b99ac1 | 316 | .probe = com20020_probe, |
cc3b4866 | 317 | .remove = com20020_detach, |
7fb22bb4 | 318 | .id_table = com20020_ids, |
98e4c28b DB |
319 | .suspend = com20020_suspend, |
320 | .resume = com20020_resume, | |
1da177e4 | 321 | }; |
fdd3f29e | 322 | module_pcmcia_driver(com20020_cs_driver); |