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 * **********************
35 #define pr_fmt(fmt) "arcnet:" KBUILD_MODNAME ": " fmt
37 #include <linux/kernel.h>
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>
46 #include <pcmcia/cistpl.h>
47 #include <pcmcia/ds.h>
49 #include "arcdevice.h"
52 static void regdump(struct net_device *dev)
55 int ioaddr = dev->base_addr;
58 netdev_dbg(dev, "register dump:\n");
59 for (count = 0; count < 16; count++) {
61 pr_cont("%04X:", ioaddr + count);
62 pr_cont(" %02X", arcnet_inb(ioaddr, count));
66 netdev_dbg(dev, "buffer0 dump:\n");
67 /* set up the address register */
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);
73 for (count = 0; count < 256 + 32; count++) {
75 pr_cont("%04X:", count);
78 pr_cont(" %02X", arcnet_inb(ioaddr, COM20020_REG_RW_MEMDATA));
84 /*====================================================================*/
86 /* Parameters that can be set with 'insmod' */
89 static int timeout = 3;
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);
100 MODULE_LICENSE("GPL");
102 /*====================================================================*/
104 static int com20020_config(struct pcmcia_device *link);
105 static void com20020_release(struct pcmcia_device *link);
107 static void com20020_detach(struct pcmcia_device *p_dev);
109 /*====================================================================*/
111 static int com20020_probe(struct pcmcia_device *p_dev)
113 struct com20020_dev *info;
114 struct net_device *dev;
115 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 arcnet_set_addr(dev, 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 ret = com20020_config(p_dev);
158 } /* com20020_attach */
160 static void com20020_detach(struct pcmcia_device *link)
162 struct com20020_dev *info = link->priv;
163 struct net_device *dev = info->dev;
165 dev_dbg(&link->dev, "detach...\n");
167 dev_dbg(&link->dev, "com20020_detach\n");
169 dev_dbg(&link->dev, "unregister...\n");
171 unregister_netdev(dev);
173 /* this is necessary because we register our IRQ separately
174 * from card services.
177 free_irq(dev->irq, dev);
179 com20020_release(link);
181 /* Unlink device structure, free bits */
182 dev_dbg(&link->dev, "unlinking...\n");
186 dev_dbg(&link->dev, "kfree...\n");
189 dev_dbg(&link->dev, "kfree2...\n");
193 } /* com20020_detach */
195 static int com20020_config(struct pcmcia_device *link)
197 struct arcnet_local *lp;
198 struct com20020_dev *info;
199 struct net_device *dev;
206 dev_dbg(&link->dev, "config...\n");
208 dev_dbg(&link->dev, "com20020_config\n");
210 dev_dbg(&link->dev, "baseport1 is %Xh\n",
211 (unsigned int)link->resource[0]->start);
216 if (!link->resource[0]->start) {
217 for (ioaddr = 0x100; ioaddr < 0x400; ioaddr += 0x10) {
218 link->resource[0]->start = ioaddr;
219 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",
238 dev_dbg(&link->dev, "requestIRQ failed totally!\n");
242 dev->irq = link->irq;
244 ret = pcmcia_enable_device(link);
248 if (com20020_check(dev)) {
253 lp = netdev_priv(dev);
254 lp->card_name = "PCMCIA COM20020";
255 lp->card_flags = ARC_CAN_10MBIT; /* pretend all of them can 10Mbit */
257 SET_NETDEV_DEV(dev, &link->dev);
259 i = com20020_found(dev, 0); /* calls register_netdev */
262 dev_notice(&link->dev,
263 "com20020_found() failed\n");
267 netdev_dbg(dev, "port %#3lx, irq %d\n",
268 dev->base_addr, dev->irq);
272 dev_dbg(&link->dev, "com20020_config failed...\n");
273 com20020_release(link);
275 } /* com20020_config */
277 static void com20020_release(struct pcmcia_device *link)
279 dev_dbg(&link->dev, "com20020_release\n");
280 pcmcia_disable_device(link);
283 static int com20020_suspend(struct pcmcia_device *link)
285 struct com20020_dev *info = link->priv;
286 struct net_device *dev = info->dev;
289 netif_device_detach(dev);
294 static int com20020_resume(struct pcmcia_device *link)
296 struct com20020_dev *info = link->priv;
297 struct net_device *dev = info->dev;
300 int ioaddr = dev->base_addr;
301 struct arcnet_local *lp = netdev_priv(dev);
303 arcnet_outb(lp->config | 0x80, ioaddr, COM20020_REG_W_CONFIG);
305 arcnet_outb(lp->config, ioaddr, COM20020_REG_W_CONFIG);
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);