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 * **********************
30 #define pr_fmt(fmt) "arcnet:" KBUILD_MODNAME ": " fmt
32 #include <linux/module.h>
33 #include <linux/moduleparam.h>
34 #include <linux/kernel.h>
35 #include <linux/types.h>
36 #include <linux/ioport.h>
37 #include <linux/errno.h>
38 #include <linux/netdevice.h>
39 #include <linux/init.h>
40 #include <linux/interrupt.h>
41 #include <linux/pci.h>
42 #include <linux/arcdevice.h>
43 #include <linux/com20020.h>
44 #include <linux/list.h>
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,
68 const struct pci_device_id *id)
70 struct com20020_pci_card_info *ci;
71 struct net_device *dev;
72 struct arcnet_local *lp;
73 struct com20020_priv *priv;
77 if (pci_enable_device(pdev))
80 priv = devm_kzalloc(&pdev->dev, sizeof(struct com20020_priv),
85 ci = (struct com20020_pci_card_info *)id->driver_data;
88 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 arc_printk(D_NORMAL, dev, "%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),
150 card->pci_priv = priv;
153 dev_set_drvdata(&dev->dev, card);
155 ret = com20020_found(dev, IRQF_SHARED);
159 list_add(&card->list, &priv->list_dev);
162 pci_set_drvdata(pdev, priv);
167 com20020pci_remove(pdev);
171 static void com20020pci_remove(struct pci_dev *pdev)
173 struct com20020_dev *card, *tmpcard;
174 struct com20020_priv *priv;
176 priv = pci_get_drvdata(pdev);
178 list_for_each_entry_safe(card, tmpcard, &priv->list_dev, list) {
179 struct net_device *dev = card->dev;
181 unregister_netdev(dev);
182 free_irq(dev->irq, dev);
187 static struct com20020_pci_card_info card_info_10mbit = {
193 .flags = ARC_CAN_10MBIT,
196 static struct com20020_pci_card_info card_info_5mbit = {
202 .flags = ARC_IS_5MBIT,
205 static struct com20020_pci_card_info card_info_sohard = {
208 /* SOHARD needs PCI base addr 4 */
212 .flags = ARC_CAN_10MBIT,
215 static struct com20020_pci_card_info card_info_eae_arc1 = {
216 .name = "EAE PLX-PCI ARC1",
221 .flags = ARC_CAN_10MBIT,
224 static struct com20020_pci_card_info card_info_eae_ma1 = {
225 .name = "EAE PLX-PCI MA1",
231 .flags = ARC_CAN_10MBIT,
234 static const struct pci_device_id com20020pci_id_table[] = {
237 PCI_ANY_ID, PCI_ANY_ID,
243 PCI_ANY_ID, PCI_ANY_ID,
249 PCI_ANY_ID, PCI_ANY_ID,
255 PCI_ANY_ID, PCI_ANY_ID,
261 PCI_ANY_ID, PCI_ANY_ID,
267 PCI_ANY_ID, PCI_ANY_ID,
273 PCI_ANY_ID, PCI_ANY_ID,
279 PCI_ANY_ID, PCI_ANY_ID,
285 PCI_ANY_ID, PCI_ANY_ID,
287 (kernel_ulong_t)&card_info_5mbit
291 PCI_ANY_ID, PCI_ANY_ID,
293 (kernel_ulong_t)&card_info_5mbit
297 PCI_ANY_ID, PCI_ANY_ID,
299 (kernel_ulong_t)&card_info_5mbit
303 PCI_ANY_ID, PCI_ANY_ID,
305 (kernel_ulong_t)&card_info_5mbit
309 PCI_ANY_ID, PCI_ANY_ID,
311 (kernel_ulong_t)&card_info_5mbit
315 PCI_ANY_ID, PCI_ANY_ID,
317 (kernel_ulong_t)&card_info_5mbit
321 PCI_ANY_ID, PCI_ANY_ID,
323 (kernel_ulong_t)&card_info_10mbit
327 PCI_ANY_ID, PCI_ANY_ID,
329 (kernel_ulong_t)&card_info_10mbit
333 PCI_ANY_ID, PCI_ANY_ID,
335 (kernel_ulong_t)&card_info_10mbit
339 PCI_ANY_ID, PCI_ANY_ID,
341 (kernel_ulong_t)&card_info_10mbit
345 PCI_ANY_ID, PCI_ANY_ID,
347 (kernel_ulong_t)&card_info_10mbit
351 PCI_ANY_ID, PCI_ANY_ID,
353 (kernel_ulong_t)&card_info_10mbit
359 (kernel_ulong_t)&card_info_sohard
365 (kernel_ulong_t)&card_info_sohard
371 (kernel_ulong_t)&card_info_eae_arc1
377 (kernel_ulong_t)&card_info_eae_ma1
381 PCI_ANY_ID, PCI_ANY_ID,
383 (kernel_ulong_t)&card_info_10mbit
387 PCI_ANY_ID, PCI_ANY_ID,
389 (kernel_ulong_t)&card_info_10mbit
394 MODULE_DEVICE_TABLE(pci, com20020pci_id_table);
396 static struct pci_driver com20020pci_driver = {
398 .id_table = com20020pci_id_table,
399 .probe = com20020pci_probe,
400 .remove = com20020pci_remove,
403 static int __init com20020pci_init(void)
405 if (BUGLVL(D_NORMAL))
406 pr_info("%s\n", "COM20020 PCI support");
407 return pci_register_driver(&com20020pci_driver);
410 static void __exit com20020pci_cleanup(void)
412 pci_unregister_driver(&com20020pci_driver);
415 module_init(com20020pci_init)
416 module_exit(com20020pci_cleanup)