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