/drivers/net/arcnet/com20020-pci.c

  1/*
  2 * Linux ARCnet driver - COM20020 PCI support
  3 * Contemporary Controls PCI20 and SOHARD SH-ARC PCI
  4 * 
  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.
  9 *
 10 * Special thanks to Contemporary Controls, Inc. (www.ccontrols.com)
 11 *  for sponsoring the further development of this driver.
 12 *
 13 * **********************
 14 *
 15 * The original copyright of skeleton.c was as follows:
 16 *
 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.
 22 *
 23 * **********************
 24 *
 25 * For more details, see drivers/net/arcnet.c
 26 *
 27 * **********************
 28 */
 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/pci.h>
 38#include <linux/arcdevice.h>
 39#include <linux/com20020.h>
 40
 41#include <asm/io.h>
 42
 43
 44#define VERSION "arcnet: COM20020 PCI support\n"
 45
 46/* Module parameters */
 47
 48static int node;
 49static char device[9];		/* use eg. device="arc1" to change name */
 50static int timeout = 3;
 51static int backplane;
 52static int clockp;
 53static int clockm;
 54
 55module_param(node, int, 0);
 56module_param_string(device, device, sizeof(device), 0);
 57module_param(timeout, int, 0);
 58module_param(backplane, int, 0);
 59module_param(clockp, int, 0);
 60module_param(clockm, int, 0);
 61MODULE_LICENSE("GPL");
 62
 63static int __devinit com20020pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 64{
 65	struct net_device *dev;
 66	struct arcnet_local *lp;
 67	int ioaddr, err;
 68
 69	if (pci_enable_device(pdev))
 70		return -EIO;
 71	dev = alloc_arcdev(device);
 72	if (!dev)
 73		return -ENOMEM;
 74
 75	dev->netdev_ops = &com20020_netdev_ops;
 76
 77	lp = netdev_priv(dev);
 78
 79	pci_set_drvdata(pdev, dev);
 80
 81	// SOHARD needs PCI base addr 4
 82	if (pdev->vendor==0x10B5) {
 83		BUGMSG(D_NORMAL, "SOHARD\n");
 84		ioaddr = pci_resource_start(pdev, 4);
 85	}
 86	else {
 87		BUGMSG(D_NORMAL, "Contemporary Controls\n");
 88		ioaddr = pci_resource_start(pdev, 2);
 89	}
 90
 91	if (!request_region(ioaddr, ARCNET_TOTAL_SIZE, "com20020-pci")) {
 92		BUGMSG(D_INIT, "IO region %xh-%xh already allocated.\n",
 93		       ioaddr, ioaddr + ARCNET_TOTAL_SIZE - 1);
 94		err = -EBUSY;
 95		goto out_dev;
 96	}
 97
 98	// Dummy access after Reset
 99	// ARCNET controller needs this access to detect bustype
100	outb(0x00,ioaddr+1);
101	inb(ioaddr+1);
102
103	dev->base_addr = ioaddr;
104	dev->irq = pdev->irq;
105	dev->dev_addr[0] = node;
106	lp->card_name = "PCI COM20020";
107	lp->card_flags = id->driver_data;
108	lp->backplane = backplane;
109	lp->clockp = clockp & 7;
110	lp->clockm = clockm & 3;
111	lp->timeout = timeout;
112	lp->hw.owner = THIS_MODULE;
113
114	if (ASTATUS() == 0xFF) {
115		BUGMSG(D_NORMAL, "IO address %Xh was reported by PCI BIOS, "
116		       "but seems empty!\n", ioaddr);
117		err = -EIO;
118		goto out_port;
119	}
120	if (com20020_check(dev)) {
121		err = -EIO;
122		goto out_port;
123	}
124
125	if ((err = com20020_found(dev, IRQF_SHARED)) != 0)
126	        goto out_port;
127
128	return 0;
129
130out_port:
131	release_region(ioaddr, ARCNET_TOTAL_SIZE);
132out_dev:
133	free_netdev(dev);
134	return err;
135}
136
137static void __devexit com20020pci_remove(struct pci_dev *pdev)
138{
139	struct net_device *dev = pci_get_drvdata(pdev);
140	unregister_netdev(dev);
141	free_irq(dev->irq, dev);
142	release_region(dev->base_addr, ARCNET_TOTAL_SIZE);
143	free_netdev(dev);
144}
145
146static DEFINE_PCI_DEVICE_TABLE(com20020pci_id_table) = {
147	{ 0x1571, 0xa001, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
148	{ 0x1571, 0xa002, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
149	{ 0x1571, 0xa003, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
150	{ 0x1571, 0xa004, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
151	{ 0x1571, 0xa005, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
152	{ 0x1571, 0xa006, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
153	{ 0x1571, 0xa007, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
154	{ 0x1571, 0xa008, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
155	{ 0x1571, 0xa009, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_IS_5MBIT },
156	{ 0x1571, 0xa00a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_IS_5MBIT },
157	{ 0x1571, 0xa00b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_IS_5MBIT },
158	{ 0x1571, 0xa00c, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_IS_5MBIT },
159	{ 0x1571, 0xa00d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_IS_5MBIT },
160	{ 0x1571, 0xa00e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_IS_5MBIT },
161	{ 0x1571, 0xa201, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT },
162	{ 0x1571, 0xa202, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT },
163	{ 0x1571, 0xa203, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT },
164	{ 0x1571, 0xa204, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT },
165	{ 0x1571, 0xa205, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT },
166	{ 0x1571, 0xa206, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT },
167	{ 0x10B5, 0x9030, 0x10B5,     0x2978,     0, 0, ARC_CAN_10MBIT },
168	{ 0x10B5, 0x9050, 0x10B5,     0x2273,     0, 0, ARC_CAN_10MBIT },
169	{ 0x14BA, 0x6000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT },
170	{ 0x10B5, 0x2200, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT },
171	{0,}
172};
173
174MODULE_DEVICE_TABLE(pci, com20020pci_id_table);
175
176static struct pci_driver com20020pci_driver = {
177	.name		= "com20020",
178	.id_table	= com20020pci_id_table,
179	.probe		= com20020pci_probe,
180	.remove		= __devexit_p(com20020pci_remove),
181};
182
183static int __init com20020pci_init(void)
184{
185	BUGLVL(D_NORMAL) printk(VERSION);
186	return pci_register_driver(&com20020pci_driver);
187}
188
189static void __exit com20020pci_cleanup(void)
190{
191	pci_unregister_driver(&com20020pci_driver);
192}
193
194module_init(com20020pci_init)
195module_exit(com20020pci_cleanup)