2 * Linux ARCnet driver - COM20020 PCMCIA support
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.
10 * Special thanks to Contemporary Controls, Inc. (www.ccontrols.com)
11 * for sponsoring the further development of this driver.
13 * **********************
15 * The original copyright of skeleton.c was as follows:
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.
23 * **********************
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 * **********************
30 * For more details, see drivers/net/arcnet.c
32 * **********************
34 #include <linux/kernel.h>
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>
45 #include <pcmcia/cistpl.h>
46 #include <pcmcia/ds.h>
50 #define VERSION "arcnet: COM20020 PCMCIA support loaded.\n"
52 static void regdump(struct net_device *dev)
55 int ioaddr = dev->base_addr;
58 netdev_dbg(dev, "register dump:\n");
59 for (count = ioaddr; count < ioaddr + 16; count++) {
61 pr_cont("%04X:", count);
62 pr_cont(" %02X", inb(count));
66 netdev_dbg(dev, "buffer0 dump:\n");
67 /* set up the address register */
69 outb((count >> 8) | RDDATAflag | AUTOINCflag, _ADDR_HI);
70 outb(count & 0xff, _ADDR_LO);
72 for (count = 0; count < 256 + 32; count++) {
74 pr_cont("%04X:", count);
77 pr_cont(" %02X", inb(_MEMDATA));
83 /*====================================================================*/
85 /* Parameters that can be set with 'insmod' */
88 static int timeout = 3;
93 module_param(node, int, 0);
94 module_param(timeout, int, 0);
95 module_param(backplane, int, 0);
96 module_param(clockp, int, 0);
97 module_param(clockm, int, 0);
99 MODULE_LICENSE("GPL");
101 /*====================================================================*/
103 static int com20020_config(struct pcmcia_device *link);
104 static void com20020_release(struct pcmcia_device *link);
106 static void com20020_detach(struct pcmcia_device *p_dev);
108 /*====================================================================*/
110 static int com20020_probe(struct pcmcia_device *p_dev)
112 struct com20020_dev *info;
113 struct net_device *dev;
114 struct arcnet_local *lp;
116 dev_dbg(&p_dev->dev, "com20020_attach()\n");
118 /* Create new network device */
119 info = kzalloc(sizeof(*info), GFP_KERNEL);
121 goto fail_alloc_info;
123 dev = alloc_arcdev("");
127 lp = netdev_priv(dev);
128 lp->timeout = timeout;
129 lp->backplane = backplane;
131 lp->clockm = clockm & 3;
132 lp->hw.owner = THIS_MODULE;
134 /* fill in our module parameters as defaults */
135 dev->dev_addr[0] = node;
137 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
138 p_dev->resource[0]->end = 16;
139 p_dev->config_flags |= CONF_ENABLE_IRQ;
144 return com20020_config(p_dev);
150 } /* com20020_attach */
152 static void com20020_detach(struct pcmcia_device *link)
154 struct com20020_dev *info = link->priv;
155 struct net_device *dev = info->dev;
157 dev_dbg(&link->dev, "detach...\n");
159 dev_dbg(&link->dev, "com20020_detach\n");
161 dev_dbg(&link->dev, "unregister...\n");
163 unregister_netdev(dev);
166 * this is necessary because we register our IRQ separately
167 * from card services.
170 free_irq(dev->irq, dev);
172 com20020_release(link);
174 /* Unlink device structure, free bits */
175 dev_dbg(&link->dev, "unlinking...\n");
179 dev_dbg(&link->dev, "kfree...\n");
182 dev_dbg(&link->dev, "kfree2...\n");
186 } /* com20020_detach */
188 static int com20020_config(struct pcmcia_device *link)
190 struct arcnet_local *lp;
191 struct com20020_dev *info;
192 struct net_device *dev;
199 dev_dbg(&link->dev, "config...\n");
201 dev_dbg(&link->dev, "com20020_config\n");
203 dev_dbg(&link->dev, "baseport1 is %Xh\n",
204 (unsigned int)link->resource[0]->start);
209 if (!link->resource[0]->start) {
210 for (ioaddr = 0x100; ioaddr < 0x400; ioaddr += 0x10) {
211 link->resource[0]->start = ioaddr;
212 i = pcmcia_request_io(link);
217 i = pcmcia_request_io(link);
221 dev_dbg(&link->dev, "requestIO failed totally!\n");
225 ioaddr = dev->base_addr = link->resource[0]->start;
226 dev_dbg(&link->dev, "got ioaddr %Xh\n", ioaddr);
228 dev_dbg(&link->dev, "request IRQ %d\n",
231 dev_dbg(&link->dev, "requestIRQ failed totally!\n");
235 dev->irq = link->irq;
237 ret = pcmcia_enable_device(link);
241 if (com20020_check(dev)) {
246 lp = netdev_priv(dev);
247 lp->card_name = "PCMCIA COM20020";
248 lp->card_flags = ARC_CAN_10MBIT; /* pretend all of them can 10Mbit */
250 SET_NETDEV_DEV(dev, &link->dev);
252 i = com20020_found(dev, 0); /* calls register_netdev */
255 dev_notice(&link->dev,
256 "com20020_found() failed\n");
260 netdev_dbg(dev, "port %#3lx, irq %d\n",
261 dev->base_addr, dev->irq);
265 dev_dbg(&link->dev, "com20020_config failed...\n");
266 com20020_release(link);
268 } /* com20020_config */
270 static void com20020_release(struct pcmcia_device *link)
272 dev_dbg(&link->dev, "com20020_release\n");
273 pcmcia_disable_device(link);
276 static int com20020_suspend(struct pcmcia_device *link)
278 struct com20020_dev *info = link->priv;
279 struct net_device *dev = info->dev;
282 netif_device_detach(dev);
287 static int com20020_resume(struct pcmcia_device *link)
289 struct com20020_dev *info = link->priv;
290 struct net_device *dev = info->dev;
293 int ioaddr = dev->base_addr;
294 struct arcnet_local *lp = netdev_priv(dev);
302 static const struct pcmcia_device_id com20020_ids[] = {
303 PCMCIA_DEVICE_PROD_ID12("Contemporary Control Systems, Inc.",
304 "PCM20 Arcnet Adapter", 0x59991666, 0x95dfffaf),
305 PCMCIA_DEVICE_PROD_ID12("SoHard AG",
306 "SH ARC PCMCIA", 0xf8991729, 0x69dff0c7),
309 MODULE_DEVICE_TABLE(pcmcia, com20020_ids);
311 static struct pcmcia_driver com20020_cs_driver = {
312 .owner = THIS_MODULE,
313 .name = "com20020_cs",
314 .probe = com20020_probe,
315 .remove = com20020_detach,
316 .id_table = com20020_ids,
317 .suspend = com20020_suspend,
318 .resume = com20020_resume,
320 module_pcmcia_driver(com20020_cs_driver);