x86/xen: resume timer irqs early
[linux/fpc-iii.git] / drivers / net / arcnet / com20020_cs.c
blob74dc1875f9cd189d7ad29f81d6e5ca210cd1e477
1 /*
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.
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 * **********************
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 * **********************
30 * For more details, see drivers/net/arcnet.c
32 * **********************
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>
46 #include <pcmcia/cistpl.h>
47 #include <pcmcia/ds.h>
49 #include <asm/io.h>
51 #define VERSION "arcnet: COM20020 PCMCIA support loaded.\n"
54 static void regdump(struct net_device *dev)
56 #ifdef DEBUG
57 int ioaddr = dev->base_addr;
58 int count;
60 netdev_dbg(dev, "register dump:\n");
61 for (count = ioaddr; count < ioaddr + 16; count++)
63 if (!(count % 16))
64 pr_cont("%04X:", count);
65 pr_cont(" %02X", inb(count));
67 pr_cont("\n");
69 netdev_dbg(dev, "buffer0 dump:\n");
70 /* set up the address register */
71 count = 0;
72 outb((count >> 8) | RDDATAflag | AUTOINCflag, _ADDR_HI);
73 outb(count & 0xff, _ADDR_LO);
75 for (count = 0; count < 256+32; count++)
77 if (!(count % 16))
78 pr_cont("%04X:", count);
80 /* copy the data */
81 pr_cont(" %02X", inb(_MEMDATA));
83 pr_cont("\n");
84 #endif
89 /*====================================================================*/
91 /* Parameters that can be set with 'insmod' */
93 static int node;
94 static int timeout = 3;
95 static int backplane;
96 static int clockp;
97 static int clockm;
99 module_param(node, int, 0);
100 module_param(timeout, int, 0);
101 module_param(backplane, int, 0);
102 module_param(clockp, int, 0);
103 module_param(clockm, int, 0);
105 MODULE_LICENSE("GPL");
107 /*====================================================================*/
109 static int com20020_config(struct pcmcia_device *link);
110 static void com20020_release(struct pcmcia_device *link);
112 static void com20020_detach(struct pcmcia_device *p_dev);
114 /*====================================================================*/
116 typedef struct com20020_dev_t {
117 struct net_device *dev;
118 } com20020_dev_t;
120 static int com20020_probe(struct pcmcia_device *p_dev)
122 com20020_dev_t *info;
123 struct net_device *dev;
124 struct arcnet_local *lp;
126 dev_dbg(&p_dev->dev, "com20020_attach()\n");
128 /* Create new network device */
129 info = kzalloc(sizeof(struct com20020_dev_t), GFP_KERNEL);
130 if (!info)
131 goto fail_alloc_info;
133 dev = alloc_arcdev("");
134 if (!dev)
135 goto fail_alloc_dev;
137 lp = netdev_priv(dev);
138 lp->timeout = timeout;
139 lp->backplane = backplane;
140 lp->clockp = clockp;
141 lp->clockm = clockm & 3;
142 lp->hw.owner = THIS_MODULE;
144 /* fill in our module parameters as defaults */
145 dev->dev_addr[0] = node;
147 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
148 p_dev->resource[0]->end = 16;
149 p_dev->config_flags |= CONF_ENABLE_IRQ;
151 info->dev = dev;
152 p_dev->priv = info;
154 return com20020_config(p_dev);
156 fail_alloc_dev:
157 kfree(info);
158 fail_alloc_info:
159 return -ENOMEM;
160 } /* com20020_attach */
162 static void com20020_detach(struct pcmcia_device *link)
164 struct com20020_dev_t *info = link->priv;
165 struct net_device *dev = info->dev;
167 dev_dbg(&link->dev, "detach...\n");
169 dev_dbg(&link->dev, "com20020_detach\n");
171 dev_dbg(&link->dev, "unregister...\n");
173 unregister_netdev(dev);
176 * this is necessary because we register our IRQ separately
177 * from card services.
179 if (dev->irq)
180 free_irq(dev->irq, dev);
182 com20020_release(link);
184 /* Unlink device structure, free bits */
185 dev_dbg(&link->dev, "unlinking...\n");
186 if (link->priv)
188 dev = info->dev;
189 if (dev)
191 dev_dbg(&link->dev, "kfree...\n");
192 free_netdev(dev);
194 dev_dbg(&link->dev, "kfree2...\n");
195 kfree(info);
198 } /* com20020_detach */
200 static int com20020_config(struct pcmcia_device *link)
202 struct arcnet_local *lp;
203 com20020_dev_t *info;
204 struct net_device *dev;
205 int i, ret;
206 int ioaddr;
208 info = link->priv;
209 dev = info->dev;
211 dev_dbg(&link->dev, "config...\n");
213 dev_dbg(&link->dev, "com20020_config\n");
215 dev_dbg(&link->dev, "baseport1 is %Xh\n",
216 (unsigned int) link->resource[0]->start);
218 i = -ENODEV;
219 link->io_lines = 16;
221 if (!link->resource[0]->start)
223 for (ioaddr = 0x100; ioaddr < 0x400; ioaddr += 0x10)
225 link->resource[0]->start = ioaddr;
226 i = pcmcia_request_io(link);
227 if (i == 0)
228 break;
231 else
232 i = pcmcia_request_io(link);
234 if (i != 0)
236 dev_dbg(&link->dev, "requestIO failed totally!\n");
237 goto failed;
240 ioaddr = dev->base_addr = link->resource[0]->start;
241 dev_dbg(&link->dev, "got ioaddr %Xh\n", ioaddr);
243 dev_dbg(&link->dev, "request IRQ %d\n",
244 link->irq);
245 if (!link->irq)
247 dev_dbg(&link->dev, "requestIRQ failed totally!\n");
248 goto failed;
251 dev->irq = link->irq;
253 ret = pcmcia_enable_device(link);
254 if (ret)
255 goto failed;
257 if (com20020_check(dev))
259 regdump(dev);
260 goto failed;
263 lp = netdev_priv(dev);
264 lp->card_name = "PCMCIA COM20020";
265 lp->card_flags = ARC_CAN_10MBIT; /* pretend all of them can 10Mbit */
267 SET_NETDEV_DEV(dev, &link->dev);
269 i = com20020_found(dev, 0); /* calls register_netdev */
271 if (i != 0) {
272 dev_notice(&link->dev,
273 "com20020_found() failed\n");
274 goto failed;
277 netdev_dbg(dev, "port %#3lx, irq %d\n",
278 dev->base_addr, dev->irq);
279 return 0;
281 failed:
282 dev_dbg(&link->dev, "com20020_config failed...\n");
283 com20020_release(link);
284 return -ENODEV;
285 } /* com20020_config */
287 static void com20020_release(struct pcmcia_device *link)
289 dev_dbg(&link->dev, "com20020_release\n");
290 pcmcia_disable_device(link);
293 static int com20020_suspend(struct pcmcia_device *link)
295 com20020_dev_t *info = link->priv;
296 struct net_device *dev = info->dev;
298 if (link->open)
299 netif_device_detach(dev);
301 return 0;
304 static int com20020_resume(struct pcmcia_device *link)
306 com20020_dev_t *info = link->priv;
307 struct net_device *dev = info->dev;
309 if (link->open) {
310 int ioaddr = dev->base_addr;
311 struct arcnet_local *lp = netdev_priv(dev);
312 ARCRESET;
315 return 0;
318 static const struct pcmcia_device_id com20020_ids[] = {
319 PCMCIA_DEVICE_PROD_ID12("Contemporary Control Systems, Inc.",
320 "PCM20 Arcnet Adapter", 0x59991666, 0x95dfffaf),
321 PCMCIA_DEVICE_PROD_ID12("SoHard AG",
322 "SH ARC PCMCIA", 0xf8991729, 0x69dff0c7),
323 PCMCIA_DEVICE_NULL
325 MODULE_DEVICE_TABLE(pcmcia, com20020_ids);
327 static struct pcmcia_driver com20020_cs_driver = {
328 .owner = THIS_MODULE,
329 .name = "com20020_cs",
330 .probe = com20020_probe,
331 .remove = com20020_detach,
332 .id_table = com20020_ids,
333 .suspend = com20020_suspend,
334 .resume = com20020_resume,
336 module_pcmcia_driver(com20020_cs_driver);