2 * Linux ARCnet driver - COM20020 PCI support
3 * Contemporary Controls PCI20 and SOHARD SH-ARC PCI
5 * Written 1994-1999 by Avery Pennarun,
6 * based on an ISA version by David Woodhouse.
7 * Written 1999-2000 by Martin Mares <mj@ucw.cz>.
8 * 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 * For more details, see drivers/net/arcnet.c
27 * **********************
29 #include <linux/module.h>
30 #include <linux/moduleparam.h>
31 #include <linux/kernel.h>
32 #include <linux/types.h>
33 #include <linux/ioport.h>
34 #include <linux/errno.h>
35 #include <linux/netdevice.h>
36 #include <linux/init.h>
37 #include <linux/interrupt.h>
38 #include <linux/pci.h>
39 #include <linux/arcdevice.h>
40 #include <linux/com20020.h>
41 #include <linux/list.h>
46 #define VERSION "arcnet: COM20020 PCI support\n"
48 /* Module parameters */
51 static char device[9]; /* use eg. device="arc1" to change name */
52 static int timeout = 3;
57 module_param(node, int, 0);
58 module_param_string(device, device, sizeof(device), 0);
59 module_param(timeout, int, 0);
60 module_param(backplane, int, 0);
61 module_param(clockp, int, 0);
62 module_param(clockm, int, 0);
63 MODULE_LICENSE("GPL");
65 static void com20020pci_remove(struct pci_dev *pdev);
67 static int com20020pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
69 struct com20020_pci_card_info *ci;
70 struct net_device *dev;
71 struct arcnet_local *lp;
72 struct com20020_priv *priv;
76 if (pci_enable_device(pdev))
79 priv = devm_kzalloc(&pdev->dev, sizeof(struct com20020_priv),
81 ci = (struct com20020_pci_card_info *)id->driver_data;
84 INIT_LIST_HEAD(&priv->list_dev);
87 for (i = 0; i < ci->devcount; i++) {
88 struct com20020_pci_channel_map *cm = &ci->chan_map_tbl[i];
89 struct com20020_dev *card;
91 dev = alloc_arcdev(device);
97 dev->netdev_ops = &com20020_netdev_ops;
99 lp = netdev_priv(dev);
101 BUGMSG(D_NORMAL, "%s Controls\n", ci->name);
102 ioaddr = pci_resource_start(pdev, cm->bar) + cm->offset;
104 r = devm_request_region(&pdev->dev, ioaddr, cm->size,
107 pr_err("IO region %xh-%xh already allocated.\n",
108 ioaddr, ioaddr + cm->size - 1);
113 /* Dummy access after Reset
114 * ARCNET controller needs
115 * this access to detect bustype
117 outb(0x00, ioaddr + 1);
120 dev->base_addr = ioaddr;
121 dev->dev_addr[0] = node;
122 dev->irq = pdev->irq;
123 lp->card_name = "PCI COM20020";
124 lp->card_flags = ci->flags;
125 lp->backplane = backplane;
126 lp->clockp = clockp & 7;
127 lp->clockm = clockm & 3;
128 lp->timeout = timeout;
129 lp->hw.owner = THIS_MODULE;
131 if (ASTATUS() == 0xFF) {
132 pr_err("IO address %Xh is empty!\n", ioaddr);
136 if (com20020_check(dev)) {
141 card = devm_kzalloc(&pdev->dev, sizeof(struct com20020_dev),
144 pr_err("%s out of memory!\n", __func__);
149 card->pci_priv = priv;
152 dev_set_drvdata(&dev->dev, card);
154 ret = com20020_found(dev, IRQF_SHARED);
158 list_add(&card->list, &priv->list_dev);
161 pci_set_drvdata(pdev, priv);
166 com20020pci_remove(pdev);
170 static void com20020pci_remove(struct pci_dev *pdev)
172 struct com20020_dev *card, *tmpcard;
173 struct com20020_priv *priv;
175 priv = pci_get_drvdata(pdev);
177 list_for_each_entry_safe(card, tmpcard, &priv->list_dev, list) {
178 struct net_device *dev = card->dev;
180 unregister_netdev(dev);
181 free_irq(dev->irq, dev);
186 static struct com20020_pci_card_info card_info_10mbit = {
192 .flags = ARC_CAN_10MBIT,
195 static struct com20020_pci_card_info card_info_5mbit = {
201 .flags = ARC_IS_5MBIT,
204 static struct com20020_pci_card_info card_info_sohard = {
207 /* SOHARD needs PCI base addr 4 */
211 .flags = ARC_CAN_10MBIT,
214 static struct com20020_pci_card_info card_info_eae = {
215 .name = "EAE PLX-PCI",
221 .flags = ARC_CAN_10MBIT,
224 static const struct pci_device_id com20020pci_id_table[] = {
227 PCI_ANY_ID, PCI_ANY_ID,
233 PCI_ANY_ID, PCI_ANY_ID,
239 PCI_ANY_ID, PCI_ANY_ID,
245 PCI_ANY_ID, PCI_ANY_ID,
251 PCI_ANY_ID, PCI_ANY_ID,
257 PCI_ANY_ID, PCI_ANY_ID,
263 PCI_ANY_ID, PCI_ANY_ID,
269 PCI_ANY_ID, PCI_ANY_ID,
275 PCI_ANY_ID, PCI_ANY_ID,
277 (kernel_ulong_t)&card_info_5mbit
281 PCI_ANY_ID, PCI_ANY_ID,
283 (kernel_ulong_t)&card_info_5mbit
287 PCI_ANY_ID, PCI_ANY_ID,
289 (kernel_ulong_t)&card_info_5mbit
293 PCI_ANY_ID, PCI_ANY_ID,
295 (kernel_ulong_t)&card_info_5mbit
299 PCI_ANY_ID, PCI_ANY_ID,
301 (kernel_ulong_t)&card_info_5mbit
305 PCI_ANY_ID, PCI_ANY_ID,
307 (kernel_ulong_t)&card_info_5mbit
311 PCI_ANY_ID, PCI_ANY_ID,
313 (kernel_ulong_t)&card_info_10mbit
317 PCI_ANY_ID, PCI_ANY_ID,
319 (kernel_ulong_t)&card_info_10mbit
323 PCI_ANY_ID, PCI_ANY_ID,
325 (kernel_ulong_t)&card_info_10mbit
329 PCI_ANY_ID, PCI_ANY_ID,
331 (kernel_ulong_t)&card_info_10mbit
335 PCI_ANY_ID, PCI_ANY_ID,
337 (kernel_ulong_t)&card_info_10mbit
341 PCI_ANY_ID, PCI_ANY_ID,
343 (kernel_ulong_t)&card_info_10mbit
349 (kernel_ulong_t)&card_info_sohard
355 (kernel_ulong_t)&card_info_sohard
361 (kernel_ulong_t)&card_info_eae
365 PCI_ANY_ID, PCI_ANY_ID,
367 (kernel_ulong_t)&card_info_10mbit
371 PCI_ANY_ID, PCI_ANY_ID,
373 (kernel_ulong_t)&card_info_10mbit
378 MODULE_DEVICE_TABLE(pci, com20020pci_id_table);
380 static struct pci_driver com20020pci_driver = {
382 .id_table = com20020pci_id_table,
383 .probe = com20020pci_probe,
384 .remove = com20020pci_remove,
387 static int __init com20020pci_init(void)
389 BUGLVL(D_NORMAL) printk(VERSION);
390 return pci_register_driver(&com20020pci_driver);
393 static void __exit com20020pci_cleanup(void)
395 pci_unregister_driver(&com20020pci_driver);
398 module_init(com20020pci_init)
399 module_exit(com20020pci_cleanup)