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Linux/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/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 
 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 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 
131 out_port:
132         release_region(ioaddr, ARCNET_TOTAL_SIZE);
133 out_dev:
134         free_netdev(dev);
135         return err;
136 }
137 
138 static void 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 
147 static const struct pci_device_id 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 
175 MODULE_DEVICE_TABLE(pci, com20020pci_id_table);
176 
177 static struct pci_driver com20020pci_driver = {
178         .name           = "com20020",
179         .id_table       = com20020pci_id_table,
180         .probe          = com20020pci_probe,
181         .remove         = com20020pci_remove,
182 };
183 
184 static int __init com20020pci_init(void)
185 {
186         BUGLVL(D_NORMAL) printk(VERSION);
187         return pci_register_driver(&com20020pci_driver);
188 }
189 
190 static void __exit com20020pci_cleanup(void)
191 {
192         pci_unregister_driver(&com20020pci_driver);
193 }
194 
195 module_init(com20020pci_init)
196 module_exit(com20020pci_cleanup)
197 

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