2 * tmspci.c: A generic network driver for TMS380-based PCI token ring cards.
4 * Written 1999 by Adam Fritzler
6 * This software may be used and distributed according to the terms
7 * of the GNU General Public License, incorporated herein by reference.
9 * This driver module supports the following cards:
10 * - SysKonnect TR4/16(+) PCI (SK-4590)
11 * - SysKonnect TR4/16 PCI (SK-4591)
12 * - Compaq TR 4/16 PCI
13 * - Thomas-Conrad TC4048 4/16 PCI
14 * - 3Com 3C339 Token Link Velocity
19 * Modification History:
20 * 30-Dec-99 AF Split off from the tms380tr driver.
21 * 22-Jan-00 AF Updated to use indirect read/writes
22 * 23-Nov-00 JG New PCI API, cleanups
25 * 1. See if we can use MMIO instead of port accesses
29 #include <linux/module.h>
30 #include <linux/kernel.h>
31 #include <linux/errno.h>
32 #include <linux/pci.h>
33 #include <linux/init.h>
34 #include <linux/netdevice.h>
35 #include <linux/trdevice.h>
37 #include <asm/system.h>
43 static char version[] __devinitdata =
44 "tmspci.c: v1.02 23/11/2000 by Adam Fritzler\n";
46 #define TMS_PCI_IO_EXTENT 32
49 unsigned char nselout[2]; /* NSELOUT vals for 4mb([0]) and 16mb([1]) */
53 static struct card_info card_info_table[] = {
54 { {0x03, 0x01}, "Compaq 4/16 TR PCI"},
55 { {0x03, 0x01}, "SK NET TR 4/16 PCI"},
56 { {0x03, 0x01}, "Thomas-Conrad TC4048 PCI 4/16"},
57 { {0x03, 0x01}, "3Com Token Link Velocity"},
60 static struct pci_device_id tmspci_pci_tbl[] = {
61 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_TOKENRING, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
62 { PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_TR, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 },
63 { PCI_VENDOR_ID_TCONRAD, PCI_DEVICE_ID_TCONRAD_TOKENRING, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2 },
64 { PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3C339, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3 },
65 { } /* Terminating entry */
67 MODULE_DEVICE_TABLE(pci, tmspci_pci_tbl);
69 MODULE_LICENSE("GPL");
71 static void tms_pci_read_eeprom(struct net_device *dev);
72 static unsigned short tms_pci_setnselout_pins(struct net_device *dev);
74 static unsigned short tms_pci_sifreadb(struct net_device *dev, unsigned short reg)
76 return inb(dev->base_addr + reg);
79 static unsigned short tms_pci_sifreadw(struct net_device *dev, unsigned short reg)
81 return inw(dev->base_addr + reg);
84 static void tms_pci_sifwriteb(struct net_device *dev, unsigned short val, unsigned short reg)
86 outb(val, dev->base_addr + reg);
89 static void tms_pci_sifwritew(struct net_device *dev, unsigned short val, unsigned short reg)
91 outw(val, dev->base_addr + reg);
94 static int __devinit tms_pci_attach(struct pci_dev *pdev, const struct pci_device_id *ent)
96 static int versionprinted;
97 struct net_device *dev;
100 unsigned int pci_irq_line;
101 unsigned long pci_ioaddr;
102 struct card_info *cardinfo = &card_info_table[ent->driver_data];
104 if (versionprinted++ == 0)
105 printk("%s", version);
107 if (pci_enable_device(pdev))
110 /* Remove I/O space marker in bit 0. */
111 pci_irq_line = pdev->irq;
112 pci_ioaddr = pci_resource_start (pdev, 0);
114 /* At this point we have found a valid card. */
115 dev = alloc_trdev(sizeof(struct net_local));
119 if (!request_region(pci_ioaddr, TMS_PCI_IO_EXTENT, dev->name)) {
124 ret = request_irq(pdev->irq, tms380tr_interrupt, IRQF_SHARED,
129 dev->base_addr = pci_ioaddr;
130 dev->irq = pci_irq_line;
133 printk("%s: %s\n", dev->name, cardinfo->name);
134 printk("%s: IO: %#4lx IRQ: %d\n",
135 dev->name, dev->base_addr, dev->irq);
137 tms_pci_read_eeprom(dev);
139 printk("%s: Ring Station Address: %pM\n",
140 dev->name, dev->dev_addr);
142 ret = tmsdev_init(dev, &pdev->dev);
144 printk("%s: unable to get memory for dev->priv.\n", dev->name);
148 tp = netdev_priv(dev);
149 tp->setnselout = tms_pci_setnselout_pins;
151 tp->sifreadb = tms_pci_sifreadb;
152 tp->sifreadw = tms_pci_sifreadw;
153 tp->sifwriteb = tms_pci_sifwriteb;
154 tp->sifwritew = tms_pci_sifwritew;
156 memcpy(tp->ProductID, cardinfo->name, PROD_ID_SIZE + 1);
158 tp->tmspriv = cardinfo;
160 dev->open = tms380tr_open;
161 dev->stop = tms380tr_close;
162 pci_set_drvdata(pdev, dev);
163 SET_NETDEV_DEV(dev, &pdev->dev);
165 ret = register_netdev(dev);
172 pci_set_drvdata(pdev, NULL);
175 free_irq(pdev->irq, dev);
177 release_region(pci_ioaddr, TMS_PCI_IO_EXTENT);
184 * Reads MAC address from adapter RAM, which should've read it from
187 * Calling this on a board that does not support it can be a very
188 * dangerous thing. The Madge board, for instance, will lock your
189 * machine hard when this is called. Luckily, its supported in a
190 * separate driver. --ASF
192 static void tms_pci_read_eeprom(struct net_device *dev)
196 /* Address: 0000:0000 */
197 tms_pci_sifwritew(dev, 0, SIFADX);
198 tms_pci_sifwritew(dev, 0, SIFADR);
200 /* Read six byte MAC address data */
202 for(i = 0; i < 6; i++)
203 dev->dev_addr[i] = tms_pci_sifreadw(dev, SIFINC) >> 8;
206 static unsigned short tms_pci_setnselout_pins(struct net_device *dev)
208 unsigned short val = 0;
209 struct net_local *tp = netdev_priv(dev);
210 struct card_info *cardinfo = tp->tmspriv;
212 if(tp->DataRate == SPEED_4)
213 val |= cardinfo->nselout[0]; /* Set 4Mbps */
215 val |= cardinfo->nselout[1]; /* Set 16Mbps */
219 static void __devexit tms_pci_detach (struct pci_dev *pdev)
221 struct net_device *dev = pci_get_drvdata(pdev);
224 unregister_netdev(dev);
225 release_region(dev->base_addr, TMS_PCI_IO_EXTENT);
226 free_irq(dev->irq, dev);
229 pci_set_drvdata(pdev, NULL);
232 static struct pci_driver tms_pci_driver = {
234 .id_table = tmspci_pci_tbl,
235 .probe = tms_pci_attach,
236 .remove = __devexit_p(tms_pci_detach),
239 static int __init tms_pci_init (void)
241 return pci_register_driver(&tms_pci_driver);
244 static void __exit tms_pci_rmmod (void)
246 pci_unregister_driver (&tms_pci_driver);
249 module_init(tms_pci_init);
250 module_exit(tms_pci_rmmod);