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/list.h>
44 #include <linux/leds.h>
46 #include "arcdevice.h"
49 /* Module parameters */
52 static char device[9]; /* use eg. device="arc1" to change name */
53 static int timeout = 3;
58 module_param(node, int, 0);
59 module_param_string(device, device, sizeof(device), 0);
60 module_param(timeout, int, 0);
61 module_param(backplane, int, 0);
62 module_param(clockp, int, 0);
63 module_param(clockm, int, 0);
64 MODULE_LICENSE("GPL");
66 static void led_tx_set(struct led_classdev *led_cdev,
67 enum led_brightness value)
69 struct com20020_dev *card;
70 struct com20020_priv *priv;
71 struct com20020_pci_card_info *ci;
73 card = container_of(led_cdev, struct com20020_dev, tx_led);
75 priv = card->pci_priv;
78 outb(!!value, priv->misc + ci->leds[card->index].green);
81 static void led_recon_set(struct led_classdev *led_cdev,
82 enum led_brightness value)
84 struct com20020_dev *card;
85 struct com20020_priv *priv;
86 struct com20020_pci_card_info *ci;
88 card = container_of(led_cdev, struct com20020_dev, recon_led);
90 priv = card->pci_priv;
93 outb(!!value, priv->misc + ci->leds[card->index].red);
96 static void com20020pci_remove(struct pci_dev *pdev);
98 static int com20020pci_probe(struct pci_dev *pdev,
99 const struct pci_device_id *id)
101 struct com20020_pci_card_info *ci;
102 struct com20020_pci_channel_map *mm;
103 struct net_device *dev;
104 struct arcnet_local *lp;
105 struct com20020_priv *priv;
109 if (pci_enable_device(pdev))
112 priv = devm_kzalloc(&pdev->dev, sizeof(struct com20020_priv),
117 ci = (struct com20020_pci_card_info *)id->driver_data;
121 INIT_LIST_HEAD(&priv->list_dev);
124 ioaddr = pci_resource_start(pdev, mm->bar) + mm->offset;
125 r = devm_request_region(&pdev->dev, ioaddr, mm->size,
128 pr_err("IO region %xh-%xh already allocated.\n",
129 ioaddr, ioaddr + mm->size - 1);
135 for (i = 0; i < ci->devcount; i++) {
136 struct com20020_pci_channel_map *cm = &ci->chan_map_tbl[i];
137 struct com20020_dev *card;
139 dev = alloc_arcdev(device);
146 dev->netdev_ops = &com20020_netdev_ops;
148 lp = netdev_priv(dev);
150 arc_printk(D_NORMAL, dev, "%s Controls\n", ci->name);
151 ioaddr = pci_resource_start(pdev, cm->bar) + cm->offset;
153 r = devm_request_region(&pdev->dev, ioaddr, cm->size,
156 pr_err("IO region %xh-%xh already allocated\n",
157 ioaddr, ioaddr + cm->size - 1);
162 /* Dummy access after Reset
163 * ARCNET controller needs
164 * this access to detect bustype
166 arcnet_outb(0x00, ioaddr, COM20020_REG_W_COMMAND);
167 arcnet_inb(ioaddr, COM20020_REG_R_DIAGSTAT);
169 dev->base_addr = ioaddr;
170 dev->dev_addr[0] = node;
171 dev->irq = pdev->irq;
172 lp->card_name = "PCI COM20020";
173 lp->card_flags = ci->flags;
174 lp->backplane = backplane;
175 lp->clockp = clockp & 7;
176 lp->clockm = clockm & 3;
177 lp->timeout = timeout;
178 lp->hw.owner = THIS_MODULE;
180 /* Get the dev_id from the PLX rotary coder */
181 if (!strncmp(ci->name, "EAE PLX-PCI MA1", 15))
183 dev->dev_id ^= inb(priv->misc + ci->rotary) >> 4;
185 snprintf(dev->name, sizeof(dev->name), "arc%d-%d", dev->dev_id, i);
187 if (arcnet_inb(ioaddr, COM20020_REG_R_STATUS) == 0xFF) {
188 pr_err("IO address %Xh is empty!\n", ioaddr);
192 if (com20020_check(dev)) {
197 card = devm_kzalloc(&pdev->dev, sizeof(struct com20020_dev),
203 card->pci_priv = priv;
204 card->tx_led.brightness_set = led_tx_set;
205 card->tx_led.default_trigger = devm_kasprintf(&pdev->dev,
206 GFP_KERNEL, "arc%d-%d-tx",
208 card->tx_led.name = devm_kasprintf(&pdev->dev, GFP_KERNEL,
209 "pci:green:tx:%d-%d",
212 card->tx_led.dev = &dev->dev;
213 card->recon_led.brightness_set = led_recon_set;
214 card->recon_led.default_trigger = devm_kasprintf(&pdev->dev,
215 GFP_KERNEL, "arc%d-%d-recon",
217 card->recon_led.name = devm_kasprintf(&pdev->dev, GFP_KERNEL,
218 "pci:red:recon:%d-%d",
220 card->recon_led.dev = &dev->dev;
223 ret = devm_led_classdev_register(&pdev->dev, &card->tx_led);
227 ret = devm_led_classdev_register(&pdev->dev, &card->recon_led);
231 dev_set_drvdata(&dev->dev, card);
233 ret = com20020_found(dev, IRQF_SHARED);
237 devm_arcnet_led_init(dev, dev->dev_id, i);
239 list_add(&card->list, &priv->list_dev);
242 pci_set_drvdata(pdev, priv);
247 com20020pci_remove(pdev);
251 static void com20020pci_remove(struct pci_dev *pdev)
253 struct com20020_dev *card, *tmpcard;
254 struct com20020_priv *priv;
256 priv = pci_get_drvdata(pdev);
258 list_for_each_entry_safe(card, tmpcard, &priv->list_dev, list) {
259 struct net_device *dev = card->dev;
261 unregister_netdev(dev);
262 free_irq(dev->irq, dev);
267 static struct com20020_pci_card_info card_info_10mbit = {
277 .flags = ARC_CAN_10MBIT,
280 static struct com20020_pci_card_info card_info_5mbit = {
290 .flags = ARC_IS_5MBIT,
293 static struct com20020_pci_card_info card_info_sohard = {
296 /* SOHARD needs PCI base addr 4 */
304 .flags = ARC_CAN_10MBIT,
307 static struct com20020_pci_card_info card_info_eae_arc1 = {
308 .name = "EAE PLX-PCI ARC1",
329 .flags = ARC_CAN_10MBIT,
332 static struct com20020_pci_card_info card_info_eae_ma1 = {
333 .name = "EAE PLX-PCI MA1",
361 .flags = ARC_CAN_10MBIT,
364 static const struct pci_device_id com20020pci_id_table[] = {
367 PCI_ANY_ID, PCI_ANY_ID,
373 PCI_ANY_ID, PCI_ANY_ID,
379 PCI_ANY_ID, PCI_ANY_ID,
385 PCI_ANY_ID, PCI_ANY_ID,
391 PCI_ANY_ID, PCI_ANY_ID,
397 PCI_ANY_ID, PCI_ANY_ID,
403 PCI_ANY_ID, PCI_ANY_ID,
409 PCI_ANY_ID, PCI_ANY_ID,
415 PCI_ANY_ID, PCI_ANY_ID,
417 (kernel_ulong_t)&card_info_5mbit
421 PCI_ANY_ID, PCI_ANY_ID,
423 (kernel_ulong_t)&card_info_5mbit
427 PCI_ANY_ID, PCI_ANY_ID,
429 (kernel_ulong_t)&card_info_5mbit
433 PCI_ANY_ID, PCI_ANY_ID,
435 (kernel_ulong_t)&card_info_5mbit
439 PCI_ANY_ID, PCI_ANY_ID,
441 (kernel_ulong_t)&card_info_5mbit
445 PCI_ANY_ID, PCI_ANY_ID,
447 (kernel_ulong_t)&card_info_5mbit
451 PCI_ANY_ID, PCI_ANY_ID,
453 (kernel_ulong_t)&card_info_10mbit
457 PCI_ANY_ID, PCI_ANY_ID,
459 (kernel_ulong_t)&card_info_10mbit
463 PCI_ANY_ID, PCI_ANY_ID,
465 (kernel_ulong_t)&card_info_10mbit
469 PCI_ANY_ID, PCI_ANY_ID,
471 (kernel_ulong_t)&card_info_10mbit
475 PCI_ANY_ID, PCI_ANY_ID,
477 (kernel_ulong_t)&card_info_10mbit
481 PCI_ANY_ID, PCI_ANY_ID,
483 (kernel_ulong_t)&card_info_10mbit
489 (kernel_ulong_t)&card_info_sohard
495 (kernel_ulong_t)&card_info_sohard
501 (kernel_ulong_t)&card_info_eae_arc1
507 (kernel_ulong_t)&card_info_eae_ma1
511 PCI_ANY_ID, PCI_ANY_ID,
513 (kernel_ulong_t)&card_info_10mbit
517 PCI_ANY_ID, PCI_ANY_ID,
519 (kernel_ulong_t)&card_info_10mbit
524 MODULE_DEVICE_TABLE(pci, com20020pci_id_table);
526 static struct pci_driver com20020pci_driver = {
528 .id_table = com20020pci_id_table,
529 .probe = com20020pci_probe,
530 .remove = com20020pci_remove,
533 static int __init com20020pci_init(void)
535 if (BUGLVL(D_NORMAL))
536 pr_info("%s\n", "COM20020 PCI support");
537 return pci_register_driver(&com20020pci_driver);
540 static void __exit com20020pci_cleanup(void)
542 pci_unregister_driver(&com20020pci_driver);
545 module_init(com20020pci_init)
546 module_exit(com20020pci_cleanup)