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, 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);
89 for (i = 0; i < ci->devcount; i++) {
90 struct com20020_pci_channel_map *cm = &ci->chan_map_tbl[i];
91 struct com20020_dev *card;
93 dev = alloc_arcdev(device);
99 dev->netdev_ops = &com20020_netdev_ops;
101 lp = netdev_priv(dev);
103 arc_printk(D_NORMAL, dev, "%s Controls\n", ci->name);
104 ioaddr = pci_resource_start(pdev, cm->bar) + cm->offset;
106 r = devm_request_region(&pdev->dev, ioaddr, cm->size,
109 pr_err("IO region %xh-%xh already allocated\n",
110 ioaddr, ioaddr + cm->size - 1);
115 /* Dummy access after Reset
116 * ARCNET controller needs
117 * this access to detect bustype
119 outb(0x00, ioaddr + 1);
122 dev->base_addr = ioaddr;
123 dev->dev_addr[0] = node;
124 dev->irq = pdev->irq;
125 lp->card_name = "PCI COM20020";
126 lp->card_flags = ci->flags;
127 lp->backplane = backplane;
128 lp->clockp = clockp & 7;
129 lp->clockm = clockm & 3;
130 lp->timeout = timeout;
131 lp->hw.owner = THIS_MODULE;
133 if (ASTATUS() == 0xFF) {
134 pr_err("IO address %Xh is empty!\n", ioaddr);
138 if (com20020_check(dev)) {
143 card = devm_kzalloc(&pdev->dev, sizeof(struct com20020_dev),
146 pr_err("%s out of memory!\n", __func__);
151 card->pci_priv = priv;
154 dev_set_drvdata(&dev->dev, card);
156 ret = com20020_found(dev, IRQF_SHARED);
160 list_add(&card->list, &priv->list_dev);
163 pci_set_drvdata(pdev, priv);
168 com20020pci_remove(pdev);
172 static void com20020pci_remove(struct pci_dev *pdev)
174 struct com20020_dev *card, *tmpcard;
175 struct com20020_priv *priv;
177 priv = pci_get_drvdata(pdev);
179 list_for_each_entry_safe(card, tmpcard, &priv->list_dev, list) {
180 struct net_device *dev = card->dev;
182 unregister_netdev(dev);
183 free_irq(dev->irq, dev);
188 static struct com20020_pci_card_info card_info_10mbit = {
194 .flags = ARC_CAN_10MBIT,
197 static struct com20020_pci_card_info card_info_5mbit = {
203 .flags = ARC_IS_5MBIT,
206 static struct com20020_pci_card_info card_info_sohard = {
209 /* SOHARD needs PCI base addr 4 */
213 .flags = ARC_CAN_10MBIT,
216 static struct com20020_pci_card_info card_info_eae_arc1 = {
217 .name = "EAE PLX-PCI ARC1",
222 .flags = ARC_CAN_10MBIT,
225 static struct com20020_pci_card_info card_info_eae_ma1 = {
226 .name = "EAE PLX-PCI MA1",
232 .flags = ARC_CAN_10MBIT,
235 static const struct pci_device_id com20020pci_id_table[] = {
238 PCI_ANY_ID, PCI_ANY_ID,
244 PCI_ANY_ID, PCI_ANY_ID,
250 PCI_ANY_ID, PCI_ANY_ID,
256 PCI_ANY_ID, PCI_ANY_ID,
262 PCI_ANY_ID, PCI_ANY_ID,
268 PCI_ANY_ID, PCI_ANY_ID,
274 PCI_ANY_ID, PCI_ANY_ID,
280 PCI_ANY_ID, PCI_ANY_ID,
286 PCI_ANY_ID, PCI_ANY_ID,
288 (kernel_ulong_t)&card_info_5mbit
292 PCI_ANY_ID, PCI_ANY_ID,
294 (kernel_ulong_t)&card_info_5mbit
298 PCI_ANY_ID, PCI_ANY_ID,
300 (kernel_ulong_t)&card_info_5mbit
304 PCI_ANY_ID, PCI_ANY_ID,
306 (kernel_ulong_t)&card_info_5mbit
310 PCI_ANY_ID, PCI_ANY_ID,
312 (kernel_ulong_t)&card_info_5mbit
316 PCI_ANY_ID, PCI_ANY_ID,
318 (kernel_ulong_t)&card_info_5mbit
322 PCI_ANY_ID, PCI_ANY_ID,
324 (kernel_ulong_t)&card_info_10mbit
328 PCI_ANY_ID, PCI_ANY_ID,
330 (kernel_ulong_t)&card_info_10mbit
334 PCI_ANY_ID, PCI_ANY_ID,
336 (kernel_ulong_t)&card_info_10mbit
340 PCI_ANY_ID, PCI_ANY_ID,
342 (kernel_ulong_t)&card_info_10mbit
346 PCI_ANY_ID, PCI_ANY_ID,
348 (kernel_ulong_t)&card_info_10mbit
352 PCI_ANY_ID, PCI_ANY_ID,
354 (kernel_ulong_t)&card_info_10mbit
360 (kernel_ulong_t)&card_info_sohard
366 (kernel_ulong_t)&card_info_sohard
372 (kernel_ulong_t)&card_info_eae_arc1
378 (kernel_ulong_t)&card_info_eae_ma1
382 PCI_ANY_ID, PCI_ANY_ID,
384 (kernel_ulong_t)&card_info_10mbit
388 PCI_ANY_ID, PCI_ANY_ID,
390 (kernel_ulong_t)&card_info_10mbit
395 MODULE_DEVICE_TABLE(pci, com20020pci_id_table);
397 static struct pci_driver com20020pci_driver = {
399 .id_table = com20020pci_id_table,
400 .probe = com20020pci_probe,
401 .remove = com20020pci_remove,
404 static int __init com20020pci_init(void)
406 if (BUGLVL(D_NORMAL))
407 pr_info("%s\n", "COM20020 PCI support");
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)