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++)
62 pr_cont("%04X:", count);
63 pr_cont(" %02X", inb(count));
67 netdev_dbg(dev, "buffer0 dump:\n");
68 /* set up the address register */
70 outb((count >> 8) | RDDATAflag | AUTOINCflag, _ADDR_HI);
71 outb(count & 0xff, _ADDR_LO);
73 for (count = 0; count < 256 + 32; count++)
76 pr_cont("%04X:", count);
79 pr_cont(" %02X", inb(_MEMDATA));
85 /*====================================================================*/
87 /* Parameters that can be set with 'insmod' */
90 static int timeout = 3;
95 module_param(node, int, 0);
96 module_param(timeout, int, 0);
97 module_param(backplane, int, 0);
98 module_param(clockp, int, 0);
99 module_param(clockm, int, 0);
101 MODULE_LICENSE("GPL");
103 /*====================================================================*/
105 static int com20020_config(struct pcmcia_device *link);
106 static void com20020_release(struct pcmcia_device *link);
108 static void com20020_detach(struct pcmcia_device *p_dev);
110 /*====================================================================*/
112 static int com20020_probe(struct pcmcia_device *p_dev)
114 struct com20020_dev *info;
115 struct net_device *dev;
116 struct arcnet_local *lp;
118 dev_dbg(&p_dev->dev, "com20020_attach()\n");
120 /* Create new network device */
121 info = kzalloc(sizeof(*info), GFP_KERNEL);
123 goto fail_alloc_info;
125 dev = alloc_arcdev("");
129 lp = netdev_priv(dev);
130 lp->timeout = timeout;
131 lp->backplane = backplane;
133 lp->clockm = clockm & 3;
134 lp->hw.owner = THIS_MODULE;
136 /* fill in our module parameters as defaults */
137 dev->dev_addr[0] = node;
139 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
140 p_dev->resource[0]->end = 16;
141 p_dev->config_flags |= CONF_ENABLE_IRQ;
146 return com20020_config(p_dev);
152 } /* com20020_attach */
154 static void com20020_detach(struct pcmcia_device *link)
156 struct com20020_dev *info = link->priv;
157 struct net_device *dev = info->dev;
159 dev_dbg(&link->dev, "detach...\n");
161 dev_dbg(&link->dev, "com20020_detach\n");
163 dev_dbg(&link->dev, "unregister...\n");
165 unregister_netdev(dev);
168 * this is necessary because we register our IRQ separately
169 * from card services.
172 free_irq(dev->irq, dev);
174 com20020_release(link);
176 /* Unlink device structure, free bits */
177 dev_dbg(&link->dev, "unlinking...\n");
183 dev_dbg(&link->dev, "kfree...\n");
186 dev_dbg(&link->dev, "kfree2...\n");
190 } /* com20020_detach */
192 static int com20020_config(struct pcmcia_device *link)
194 struct arcnet_local *lp;
195 struct com20020_dev *info;
196 struct net_device *dev;
203 dev_dbg(&link->dev, "config...\n");
205 dev_dbg(&link->dev, "com20020_config\n");
207 dev_dbg(&link->dev, "baseport1 is %Xh\n",
208 (unsigned int)link->resource[0]->start);
213 if (!link->resource[0]->start)
215 for (ioaddr = 0x100; ioaddr < 0x400; ioaddr += 0x10)
217 link->resource[0]->start = ioaddr;
218 i = pcmcia_request_io(link);
224 i = pcmcia_request_io(link);
228 dev_dbg(&link->dev, "requestIO failed totally!\n");
232 ioaddr = dev->base_addr = link->resource[0]->start;
233 dev_dbg(&link->dev, "got ioaddr %Xh\n", ioaddr);
235 dev_dbg(&link->dev, "request IRQ %d\n",
239 dev_dbg(&link->dev, "requestIRQ failed totally!\n");
243 dev->irq = link->irq;
245 ret = pcmcia_enable_device(link);
249 if (com20020_check(dev))
255 lp = netdev_priv(dev);
256 lp->card_name = "PCMCIA COM20020";
257 lp->card_flags = ARC_CAN_10MBIT; /* pretend all of them can 10Mbit */
259 SET_NETDEV_DEV(dev, &link->dev);
261 i = com20020_found(dev, 0); /* calls register_netdev */
264 dev_notice(&link->dev,
265 "com20020_found() failed\n");
269 netdev_dbg(dev, "port %#3lx, irq %d\n",
270 dev->base_addr, dev->irq);
274 dev_dbg(&link->dev, "com20020_config failed...\n");
275 com20020_release(link);
277 } /* com20020_config */
279 static void com20020_release(struct pcmcia_device *link)
281 dev_dbg(&link->dev, "com20020_release\n");
282 pcmcia_disable_device(link);
285 static int com20020_suspend(struct pcmcia_device *link)
287 struct com20020_dev *info = link->priv;
288 struct net_device *dev = info->dev;
291 netif_device_detach(dev);
296 static int com20020_resume(struct pcmcia_device *link)
298 struct com20020_dev *info = link->priv;
299 struct net_device *dev = info->dev;
302 int ioaddr = dev->base_addr;
303 struct arcnet_local *lp = netdev_priv(dev);
311 static const struct pcmcia_device_id com20020_ids[] = {
312 PCMCIA_DEVICE_PROD_ID12("Contemporary Control Systems, Inc.",
313 "PCM20 Arcnet Adapter", 0x59991666, 0x95dfffaf),
314 PCMCIA_DEVICE_PROD_ID12("SoHard AG",
315 "SH ARC PCMCIA", 0xf8991729, 0x69dff0c7),
318 MODULE_DEVICE_TABLE(pcmcia, com20020_ids);
320 static struct pcmcia_driver com20020_cs_driver = {
321 .owner = THIS_MODULE,
322 .name = "com20020_cs",
323 .probe = com20020_probe,
324 .remove = com20020_detach,
325 .id_table = com20020_ids,
326 .suspend = com20020_suspend,
327 .resume = com20020_resume,
329 module_pcmcia_driver(com20020_cs_driver);