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),
84 ci = (struct com20020_pci_card_info *)id->driver_data;
87 INIT_LIST_HEAD(&priv->list_dev);
90 for (i = 0; i < ci->devcount; i++) {
91 struct com20020_pci_channel_map *cm = &ci->chan_map_tbl[i];
92 struct com20020_dev *card;
94 dev = alloc_arcdev(device);
100 dev->netdev_ops = &com20020_netdev_ops;
102 lp = netdev_priv(dev);
104 BUGMSG(D_NORMAL, "%s Controls\n", ci->name);
105 ioaddr = pci_resource_start(pdev, cm->bar) + cm->offset;
107 r = devm_request_region(&pdev->dev, ioaddr, cm->size,
110 pr_err("IO region %xh-%xh already allocated.\n",
111 ioaddr, ioaddr + cm->size - 1);
116 /* Dummy access after Reset
117 * ARCNET controller needs
118 * this access to detect bustype
120 outb(0x00, ioaddr + 1);
123 dev->base_addr = ioaddr;
124 dev->dev_addr[0] = node;
125 dev->irq = pdev->irq;
126 lp->card_name = "PCI COM20020";
127 lp->card_flags = ci->flags;
128 lp->backplane = backplane;
129 lp->clockp = clockp & 7;
130 lp->clockm = clockm & 3;
131 lp->timeout = timeout;
132 lp->hw.owner = THIS_MODULE;
134 if (ASTATUS() == 0xFF) {
135 pr_err("IO address %Xh is empty!\n", ioaddr);
139 if (com20020_check(dev)) {
144 card = devm_kzalloc(&pdev->dev, sizeof(struct com20020_dev),
147 pr_err("%s out of memory!\n", __func__);
152 card->pci_priv = priv;
155 dev_set_drvdata(&dev->dev, card);
157 ret = com20020_found(dev, IRQF_SHARED);
161 list_add(&card->list, &priv->list_dev);
164 pci_set_drvdata(pdev, priv);
169 com20020pci_remove(pdev);
173 static void com20020pci_remove(struct pci_dev *pdev)
175 struct com20020_dev *card, *tmpcard;
176 struct com20020_priv *priv;
178 priv = pci_get_drvdata(pdev);
180 list_for_each_entry_safe(card, tmpcard, &priv->list_dev, list) {
181 struct net_device *dev = card->dev;
183 unregister_netdev(dev);
184 free_irq(dev->irq, dev);
189 static struct com20020_pci_card_info card_info_10mbit = {
195 .flags = ARC_CAN_10MBIT,
198 static struct com20020_pci_card_info card_info_5mbit = {
204 .flags = ARC_IS_5MBIT,
207 static struct com20020_pci_card_info card_info_sohard = {
210 /* SOHARD needs PCI base addr 4 */
214 .flags = ARC_CAN_10MBIT,
217 static struct com20020_pci_card_info card_info_eae_arc1 = {
218 .name = "EAE PLX-PCI ARC1",
223 .flags = ARC_CAN_10MBIT,
226 static struct com20020_pci_card_info card_info_eae_ma1 = {
227 .name = "EAE PLX-PCI MA1",
233 .flags = ARC_CAN_10MBIT,
236 static const struct pci_device_id com20020pci_id_table[] = {
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,
281 PCI_ANY_ID, PCI_ANY_ID,
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_5mbit
317 PCI_ANY_ID, PCI_ANY_ID,
319 (kernel_ulong_t)&card_info_5mbit
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
347 PCI_ANY_ID, PCI_ANY_ID,
349 (kernel_ulong_t)&card_info_10mbit
353 PCI_ANY_ID, PCI_ANY_ID,
355 (kernel_ulong_t)&card_info_10mbit
361 (kernel_ulong_t)&card_info_sohard
367 (kernel_ulong_t)&card_info_sohard
373 (kernel_ulong_t)&card_info_eae_arc1
379 (kernel_ulong_t)&card_info_eae_ma1
383 PCI_ANY_ID, PCI_ANY_ID,
385 (kernel_ulong_t)&card_info_10mbit
389 PCI_ANY_ID, PCI_ANY_ID,
391 (kernel_ulong_t)&card_info_10mbit
396 MODULE_DEVICE_TABLE(pci, com20020pci_id_table);
398 static struct pci_driver com20020pci_driver = {
400 .id_table = com20020pci_id_table,
401 .probe = com20020pci_probe,
402 .remove = com20020pci_remove,
405 static int __init com20020pci_init(void)
407 BUGLVL(D_NORMAL) printk(VERSION);
408 return pci_register_driver(&com20020pci_driver);
411 static void __exit com20020pci_cleanup(void)
413 pci_unregister_driver(&com20020pci_driver);
416 module_init(com20020pci_init)
417 module_exit(com20020pci_cleanup)