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/interrupt.h>
38#include <linux/pci.h>
39#include <linux/arcdevice.h>
40#include <linux/com20020.h>
41
42#include <asm/io.h>
43
44
45#define VERSION "arcnet: COM20020 PCI support\n"
46
47/* Module parameters */
48
49static int node;
50static char device[9];		/* use eg. device="arc1" to change name */
51static int timeout = 3;
52static int backplane;
53static int clockp;
54static int clockm;
55
56module_param(node, int, 0);
57module_param_string(device, device, sizeof(device), 0);
58module_param(timeout, int, 0);
59module_param(backplane, int, 0);
60module_param(clockp, int, 0);
61module_param(clockm, int, 0);
62MODULE_LICENSE("GPL");
63
64static int __devinit com20020pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
65{
66	struct net_device *dev;
67	struct arcnet_local *lp;
68	int ioaddr, err;
69
70	if (pci_enable_device(pdev))
71		return -EIO;
72	dev = alloc_arcdev(device);
73	if (!dev)
74		return -ENOMEM;
75
76	dev->netdev_ops = &com20020_netdev_ops;
77
78	lp = netdev_priv(dev);
79
80	pci_set_drvdata(pdev, dev);
81
82	// SOHARD needs PCI base addr 4
83	if (pdev->vendor==0x10B5) {
84		BUGMSG(D_NORMAL, "SOHARD\n");
85		ioaddr = pci_resource_start(pdev, 4);
86	}
87	else {
88		BUGMSG(D_NORMAL, "Contemporary Controls\n");
89		ioaddr = pci_resource_start(pdev, 2);
90	}
91
92	if (!request_region(ioaddr, ARCNET_TOTAL_SIZE, "com20020-pci")) {
93		BUGMSG(D_INIT, "IO region %xh-%xh already allocated.\n",
94		       ioaddr, ioaddr + ARCNET_TOTAL_SIZE - 1);
95		err = -EBUSY;
96		goto out_dev;
97	}
98
99	// Dummy access after Reset
100	// ARCNET controller needs this access to detect bustype
101	outb(0x00,ioaddr+1);
102	inb(ioaddr+1);
103
104	dev->base_addr = ioaddr;
105	dev->irq = pdev->irq;
106	dev->dev_addr[0] = node;
107	lp->card_name = "PCI COM20020";
108	lp->card_flags = id->driver_data;
109	lp->backplane = backplane;
110	lp->clockp = clockp & 7;
111	lp->clockm = clockm & 3;
112	lp->timeout = timeout;
113	lp->hw.owner = THIS_MODULE;
114
115	if (ASTATUS() == 0xFF) {
116		BUGMSG(D_NORMAL, "IO address %Xh was reported by PCI BIOS, "
117		       "but seems empty!\n", ioaddr);
118		err = -EIO;
119		goto out_port;
120	}
121	if (com20020_check(dev)) {
122		err = -EIO;
123		goto out_port;
124	}
125
126	if ((err = com20020_found(dev, IRQF_SHARED)) != 0)
127	        goto out_port;
128
129	return 0;
130
131out_port:
132	release_region(ioaddr, ARCNET_TOTAL_SIZE);
133out_dev:
134	free_netdev(dev);
135	return err;
136}
137
138static void __devexit com20020pci_remove(struct pci_dev *pdev)
139{
140	struct net_device *dev = pci_get_drvdata(pdev);
141	unregister_netdev(dev);
142	free_irq(dev->irq, dev);
143	release_region(dev->base_addr, ARCNET_TOTAL_SIZE);
144	free_netdev(dev);
145}
146
147static DEFINE_PCI_DEVICE_TABLE(com20020pci_id_table) = {
148	{ 0x1571, 0xa001, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
149	{ 0x1571, 0xa002, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
150	{ 0x1571, 0xa003, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
151	{ 0x1571, 0xa004, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
152	{ 0x1571, 0xa005, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
153	{ 0x1571, 0xa006, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
154	{ 0x1571, 0xa007, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
155	{ 0x1571, 0xa008, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
156	{ 0x1571, 0xa009, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_IS_5MBIT },
157	{ 0x1571, 0xa00a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_IS_5MBIT },
158	{ 0x1571, 0xa00b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_IS_5MBIT },
159	{ 0x1571, 0xa00c, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_IS_5MBIT },
160	{ 0x1571, 0xa00d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_IS_5MBIT },
161	{ 0x1571, 0xa00e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_IS_5MBIT },
162	{ 0x1571, 0xa201, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT },
163	{ 0x1571, 0xa202, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT },
164	{ 0x1571, 0xa203, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT },
165	{ 0x1571, 0xa204, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT },
166	{ 0x1571, 0xa205, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT },
167	{ 0x1571, 0xa206, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT },
168	{ 0x10B5, 0x9030, 0x10B5,     0x2978,     0, 0, ARC_CAN_10MBIT },
169	{ 0x10B5, 0x9050, 0x10B5,     0x2273,     0, 0, ARC_CAN_10MBIT },
170	{ 0x14BA, 0x6000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT },
171	{ 0x10B5, 0x2200, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT },
172	{0,}
173};
174
175MODULE_DEVICE_TABLE(pci, com20020pci_id_table);
176
177static struct pci_driver com20020pci_driver = {
178	.name		= "com20020",
179	.id_table	= com20020pci_id_table,
180	.probe		= com20020pci_probe,
181	.remove		= __devexit_p(com20020pci_remove),
182};
183
184static int __init com20020pci_init(void)
185{
186	BUGLVL(D_NORMAL) printk(VERSION);
187	return pci_register_driver(&com20020pci_driver);
188}
189
190static void __exit com20020pci_cleanup(void)
191{
192	pci_unregister_driver(&com20020pci_driver);
193}
194
195module_init(com20020pci_init)
196module_exit(com20020pci_cleanup)
197