blob: 48434d7924ebaa2943d0475f49028dc30c9b95cb [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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
Linus Torvalds1da177e2005-04-16 15:20:36 -070046#include <pcmcia/cs_types.h>
47#include <pcmcia/cs.h>
48#include <pcmcia/cistpl.h>
49#include <pcmcia/ds.h>
50
51#include <asm/io.h>
52#include <asm/system.h>
53
54#define VERSION "arcnet: COM20020 PCMCIA support loaded.\n"
55
56#ifdef PCMCIA_DEBUG
57
58static int pc_debug = PCMCIA_DEBUG;
59module_param(pc_debug, int, 0);
60#define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
61
62static void regdump(struct net_device *dev)
63{
64 int ioaddr = dev->base_addr;
65 int count;
66
67 printk("com20020 register dump:\n");
68 for (count = ioaddr; count < ioaddr + 16; count++)
69 {
70 if (!(count % 16))
71 printk("\n%04X: ", count);
72 printk("%02X ", inb(count));
73 }
74 printk("\n");
75
76 printk("buffer0 dump:\n");
77 /* set up the address register */
78 count = 0;
79 outb((count >> 8) | RDDATAflag | AUTOINCflag, _ADDR_HI);
80 outb(count & 0xff, _ADDR_LO);
81
82 for (count = 0; count < 256+32; count++)
83 {
84 if (!(count % 16))
85 printk("\n%04X: ", count);
86
87 /* copy the data */
88 printk("%02X ", inb(_MEMDATA));
89 }
90 printk("\n");
91}
92
93#else
94
95#define DEBUG(n, args...) do { } while (0)
96static inline void regdump(struct net_device *dev) { }
97
98#endif
99
100
101/*====================================================================*/
102
103/* Parameters that can be set with 'insmod' */
104
105static int node;
106static int timeout = 3;
107static int backplane;
108static int clockp;
109static int clockm;
110
111module_param(node, int, 0);
112module_param(timeout, int, 0);
113module_param(backplane, int, 0);
114module_param(clockp, int, 0);
115module_param(clockm, int, 0);
116
117MODULE_LICENSE("GPL");
118
119/*====================================================================*/
120
Dominik Brodowski15b99ac2006-03-31 17:26:06 +0200121static int com20020_config(struct pcmcia_device *link);
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200122static void com20020_release(struct pcmcia_device *link);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700123
Dominik Brodowskicc3b4862005-11-14 21:23:14 +0100124static void com20020_detach(struct pcmcia_device *p_dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700125
Linus Torvalds1da177e2005-04-16 15:20:36 -0700126/*====================================================================*/
127
128typedef struct com20020_dev_t {
129 struct net_device *dev;
130 dev_node_t node;
131} com20020_dev_t;
132
133/*======================================================================
134
135 com20020_attach() creates an "instance" of the driver, allocating
136 local data structures for one device. The device is registered
137 with Card Services.
138
139======================================================================*/
140
Dominik Brodowski15b99ac2006-03-31 17:26:06 +0200141static int com20020_probe(struct pcmcia_device *p_dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700142{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700143 com20020_dev_t *info;
144 struct net_device *dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700145 struct arcnet_local *lp;
Dominik Brodowskif8cfa612005-11-14 21:25:51 +0100146
Linus Torvalds1da177e2005-04-16 15:20:36 -0700147 DEBUG(0, "com20020_attach()\n");
148
149 /* Create new network device */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700150 info = kmalloc(sizeof(struct com20020_dev_t), GFP_KERNEL);
151 if (!info)
152 goto fail_alloc_info;
153
154 dev = alloc_arcdev("");
155 if (!dev)
156 goto fail_alloc_dev;
157
158 memset(info, 0, sizeof(struct com20020_dev_t));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700159 lp = dev->priv;
160 lp->timeout = timeout;
161 lp->backplane = backplane;
162 lp->clockp = clockp;
163 lp->clockm = clockm & 3;
164 lp->hw.owner = THIS_MODULE;
165
166 /* fill in our module parameters as defaults */
167 dev->dev_addr[0] = node;
168
Dominik Brodowskifd238232006-03-05 10:45:09 +0100169 p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
170 p_dev->io.NumPorts1 = 16;
171 p_dev->io.IOAddrLines = 16;
172 p_dev->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
173 p_dev->irq.IRQInfo1 = IRQ_LEVEL_ID;
174 p_dev->conf.Attributes = CONF_ENABLE_IRQ;
175 p_dev->conf.IntType = INT_MEMORY_AND_IO;
176 p_dev->conf.Present = PRESENT_OPTION;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700177
Dominik Brodowskifd238232006-03-05 10:45:09 +0100178 p_dev->irq.Instance = info->dev = dev;
179 p_dev->priv = info;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700180
Dominik Brodowski15b99ac2006-03-31 17:26:06 +0200181 return com20020_config(p_dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700182
183fail_alloc_dev:
184 kfree(info);
185fail_alloc_info:
Dominik Brodowskif8cfa612005-11-14 21:25:51 +0100186 return -ENOMEM;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700187} /* com20020_attach */
188
189/*======================================================================
190
191 This deletes a driver "instance". The device is de-registered
192 with Card Services. If it has been released, all local data
193 structures are freed. Otherwise, the structures will be freed
194 when the device is released.
195
196======================================================================*/
197
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200198static void com20020_detach(struct pcmcia_device *link)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700199{
200 struct com20020_dev_t *info = link->priv;
Dominik Brodowskib4635812005-11-14 21:25:35 +0100201 struct net_device *dev = info->dev;
202
Linus Torvalds1da177e2005-04-16 15:20:36 -0700203 DEBUG(1,"detach...\n");
204
205 DEBUG(0, "com20020_detach(0x%p)\n", link);
206
Dominik Brodowskifd238232006-03-05 10:45:09 +0100207 if (link->dev_node) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700208 DEBUG(1,"unregister...\n");
209
210 unregister_netdev(dev);
Dominik Brodowskib4635812005-11-14 21:25:35 +0100211
Linus Torvalds1da177e2005-04-16 15:20:36 -0700212 /*
213 * this is necessary because we register our IRQ separately
214 * from card services.
215 */
216 if (dev->irq)
217 free_irq(dev->irq, dev);
218 }
219
Dominik Brodowskie2d40962006-03-02 00:09:29 +0100220 com20020_release(link);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700221
Linus Torvalds1da177e2005-04-16 15:20:36 -0700222 /* Unlink device structure, free bits */
223 DEBUG(1,"unlinking...\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700224 if (link->priv)
225 {
226 dev = info->dev;
227 if (dev)
228 {
229 DEBUG(1,"kfree...\n");
230 free_netdev(dev);
231 }
232 DEBUG(1,"kfree2...\n");
233 kfree(info);
234 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700235
236} /* com20020_detach */
237
238/*======================================================================
239
240 com20020_config() is scheduled to run after a CARD_INSERTION event
241 is received, to configure the PCMCIA socket, and to make the
242 device available to the system.
243
244======================================================================*/
245
246#define CS_CHECK(fn, ret) \
247do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
248
Dominik Brodowski15b99ac2006-03-31 17:26:06 +0200249static int com20020_config(struct pcmcia_device *link)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700250{
251 struct arcnet_local *lp;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700252 tuple_t tuple;
253 cisparse_t parse;
254 com20020_dev_t *info;
255 struct net_device *dev;
256 int i, last_ret, last_fn;
257 u_char buf[64];
258 int ioaddr;
259
Linus Torvalds1da177e2005-04-16 15:20:36 -0700260 info = link->priv;
261 dev = info->dev;
262
263 DEBUG(1,"config...\n");
264
265 DEBUG(0, "com20020_config(0x%p)\n", link);
266
267 tuple.Attributes = 0;
268 tuple.TupleData = buf;
269 tuple.TupleDataMax = 64;
270 tuple.TupleOffset = 0;
271 tuple.DesiredTuple = CISTPL_CONFIG;
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200272 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
273 CS_CHECK(GetTupleData, pcmcia_get_tuple_data(link, &tuple));
274 CS_CHECK(ParseTuple, pcmcia_parse_tuple(link, &tuple, &parse));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700275 link->conf.ConfigBase = parse.config.base;
276
Linus Torvalds1da177e2005-04-16 15:20:36 -0700277 DEBUG(1,"arcnet: baseport1 is %Xh\n", link->io.BasePort1);
278 i = !CS_SUCCESS;
279 if (!link->io.BasePort1)
280 {
281 for (ioaddr = 0x100; ioaddr < 0x400; ioaddr += 0x10)
282 {
283 link->io.BasePort1 = ioaddr;
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200284 i = pcmcia_request_io(link, &link->io);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700285 if (i == CS_SUCCESS)
286 break;
287 }
288 }
289 else
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200290 i = pcmcia_request_io(link, &link->io);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700291
292 if (i != CS_SUCCESS)
293 {
294 DEBUG(1,"arcnet: requestIO failed totally!\n");
295 goto failed;
296 }
297
298 ioaddr = dev->base_addr = link->io.BasePort1;
299 DEBUG(1,"arcnet: got ioaddr %Xh\n", ioaddr);
300
301 DEBUG(1,"arcnet: request IRQ %d (%Xh/%Xh)\n",
302 link->irq.AssignedIRQ,
303 link->irq.IRQInfo1, link->irq.IRQInfo2);
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200304 i = pcmcia_request_irq(link, &link->irq);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700305 if (i != CS_SUCCESS)
306 {
307 DEBUG(1,"arcnet: requestIRQ failed totally!\n");
308 goto failed;
309 }
310
311 dev->irq = link->irq.AssignedIRQ;
312
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200313 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700314
315 if (com20020_check(dev))
316 {
317 regdump(dev);
318 goto failed;
319 }
320
321 lp = dev->priv;
322 lp->card_name = "PCMCIA COM20020";
323 lp->card_flags = ARC_CAN_10MBIT; /* pretend all of them can 10Mbit */
324
Dominik Brodowskifd238232006-03-05 10:45:09 +0100325 link->dev_node = &info->node;
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200326 SET_NETDEV_DEV(dev, &handle_to_dev(link));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700327
328 i = com20020_found(dev, 0); /* calls register_netdev */
329
330 if (i != 0) {
331 DEBUG(1,KERN_NOTICE "com20020_cs: com20020_found() failed\n");
Dominik Brodowskifd238232006-03-05 10:45:09 +0100332 link->dev_node = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700333 goto failed;
334 }
335
336 strcpy(info->node.dev_name, dev->name);
337
338 DEBUG(1,KERN_INFO "%s: port %#3lx, irq %d\n",
339 dev->name, dev->base_addr, dev->irq);
Dominik Brodowski15b99ac2006-03-31 17:26:06 +0200340 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700341
342cs_failed:
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200343 cs_error(link, last_fn, last_ret);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700344failed:
345 DEBUG(1,"com20020_config failed...\n");
346 com20020_release(link);
Dominik Brodowski15b99ac2006-03-31 17:26:06 +0200347 return -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700348} /* com20020_config */
349
350/*======================================================================
351
352 After a card is removed, com20020_release() will unregister the net
353 device, and release the PCMCIA configuration. If the device is
354 still open, this will be postponed until it is closed.
355
356======================================================================*/
357
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200358static void com20020_release(struct pcmcia_device *link)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700359{
Dominik Brodowski5f2a71f2006-01-15 09:32:39 +0100360 DEBUG(0, "com20020_release(0x%p)\n", link);
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200361 pcmcia_disable_device(link);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700362}
363
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200364static int com20020_suspend(struct pcmcia_device *link)
Dominik Brodowski98e4c282005-11-14 21:21:18 +0100365{
Dominik Brodowski98e4c282005-11-14 21:21:18 +0100366 com20020_dev_t *info = link->priv;
367 struct net_device *dev = info->dev;
368
Dominik Brodowskie2d40962006-03-02 00:09:29 +0100369 if (link->open)
Dominik Brodowski8661bb52006-03-02 00:02:33 +0100370 netif_device_detach(dev);
Dominik Brodowski98e4c282005-11-14 21:21:18 +0100371
372 return 0;
373}
374
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200375static int com20020_resume(struct pcmcia_device *link)
Dominik Brodowski98e4c282005-11-14 21:21:18 +0100376{
Dominik Brodowski98e4c282005-11-14 21:21:18 +0100377 com20020_dev_t *info = link->priv;
378 struct net_device *dev = info->dev;
379
Dominik Brodowskie2d40962006-03-02 00:09:29 +0100380 if (link->open) {
Dominik Brodowski8661bb52006-03-02 00:02:33 +0100381 int ioaddr = dev->base_addr;
382 struct arcnet_local *lp = dev->priv;
383 ARCRESET;
384 }
Dominik Brodowski98e4c282005-11-14 21:21:18 +0100385
386 return 0;
387}
388
Dominik Brodowski7fb22bb2005-06-27 16:28:38 -0700389static struct pcmcia_device_id com20020_ids[] = {
Marc Sowen6bb1c392006-06-25 01:56:24 -0700390 PCMCIA_DEVICE_PROD_ID12("Contemporary Control Systems, Inc.",
391 "PCM20 Arcnet Adapter", 0x59991666, 0x95dfffaf),
392 PCMCIA_DEVICE_PROD_ID12("SoHard AG",
393 "SH ARC PCMCIA", 0xf8991729, 0x69dff0c7),
Dominik Brodowski7fb22bb2005-06-27 16:28:38 -0700394 PCMCIA_DEVICE_NULL
395};
396MODULE_DEVICE_TABLE(pcmcia, com20020_ids);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700397
398static struct pcmcia_driver com20020_cs_driver = {
399 .owner = THIS_MODULE,
400 .drv = {
401 .name = "com20020_cs",
402 },
Dominik Brodowski15b99ac2006-03-31 17:26:06 +0200403 .probe = com20020_probe,
Dominik Brodowskicc3b4862005-11-14 21:23:14 +0100404 .remove = com20020_detach,
Dominik Brodowski7fb22bb2005-06-27 16:28:38 -0700405 .id_table = com20020_ids,
Dominik Brodowski98e4c282005-11-14 21:21:18 +0100406 .suspend = com20020_suspend,
407 .resume = com20020_resume,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700408};
409
410static int __init init_com20020_cs(void)
411{
412 return pcmcia_register_driver(&com20020_cs_driver);
413}
414
415static void __exit exit_com20020_cs(void)
416{
417 pcmcia_unregister_driver(&com20020_cs_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700418}
419
420module_init(init_com20020_cs);
421module_exit(exit_com20020_cs);