MAINTAINERS: remove Adam Fritzler, remove his email address in other sources
[linux-2.6.git] / drivers / net / tokenring / proteon.c
1 /*
2  *  proteon.c: A network driver for Proteon ISA token ring cards.
3  *
4  *  Based on tmspci written 1999 by Adam Fritzler
5  *  
6  *  Written 2003 by Jochen Friedrich
7  *
8  *  This software may be used and distributed according to the terms
9  *  of the GNU General Public License, incorporated herein by reference.
10  *
11  *  This driver module supports the following cards:
12  *      - Proteon 1392, 1392+
13  *
14  *  Maintainer(s):
15  *    AF        Adam Fritzler
16  *    JF        Jochen Friedrich        jochen@scram.de
17  *
18  *  Modification History:
19  *      02-Jan-03       JF      Created
20  *
21  */
22 static const char version[] = "proteon.c: v1.00 02/01/2003 by Jochen Friedrich\n";
23
24 #include <linux/module.h>
25 #include <linux/kernel.h>
26 #include <linux/delay.h>
27 #include <linux/errno.h>
28 #include <linux/pci.h>
29 #include <linux/init.h>
30 #include <linux/netdevice.h>
31 #include <linux/trdevice.h>
32 #include <linux/platform_device.h>
33
34 #include <asm/system.h>
35 #include <asm/io.h>
36 #include <asm/irq.h>
37 #include <asm/pci.h>
38 #include <asm/dma.h>
39
40 #include "tms380tr.h"
41
42 #define PROTEON_IO_EXTENT 32
43
44 /* A zero-terminated list of I/O addresses to be probed. */
45 static unsigned int portlist[] __initdata = {
46         0x0A20, 0x0E20, 0x1A20, 0x1E20, 0x2A20, 0x2E20, 0x3A20, 0x3E20,// Prot.
47         0x4A20, 0x4E20, 0x5A20, 0x5E20, 0x6A20, 0x6E20, 0x7A20, 0x7E20,// Prot.
48         0x8A20, 0x8E20, 0x9A20, 0x9E20, 0xAA20, 0xAE20, 0xBA20, 0xBE20,// Prot.
49         0xCA20, 0xCE20, 0xDA20, 0xDE20, 0xEA20, 0xEE20, 0xFA20, 0xFE20,// Prot.
50         0
51 };
52
53 /* A zero-terminated list of IRQs to be probed. */
54 static unsigned short irqlist[] = {
55         7, 6, 5, 4, 3, 12, 11, 10, 9,
56         0
57 };
58
59 /* A zero-terminated list of DMAs to be probed. */
60 static int dmalist[] __initdata = {
61         5, 6, 7,
62         0
63 };
64
65 static char cardname[] = "Proteon 1392\0";
66 static u64 dma_mask = ISA_MAX_ADDRESS;
67 static int proteon_open(struct net_device *dev);
68 static void proteon_read_eeprom(struct net_device *dev);
69 static unsigned short proteon_setnselout_pins(struct net_device *dev);
70
71 static unsigned short proteon_sifreadb(struct net_device *dev, unsigned short reg)
72 {
73         return inb(dev->base_addr + reg);
74 }
75
76 static unsigned short proteon_sifreadw(struct net_device *dev, unsigned short reg)
77 {
78         return inw(dev->base_addr + reg);
79 }
80
81 static void proteon_sifwriteb(struct net_device *dev, unsigned short val, unsigned short reg)
82 {
83         outb(val, dev->base_addr + reg);
84 }
85
86 static void proteon_sifwritew(struct net_device *dev, unsigned short val, unsigned short reg)
87 {
88         outw(val, dev->base_addr + reg);
89 }
90
91 static int __init proteon_probe1(struct net_device *dev, int ioaddr)
92 {
93         unsigned char chk1, chk2;
94         int i;
95
96         if (!request_region(ioaddr, PROTEON_IO_EXTENT, cardname))
97                 return -ENODEV;
98                 
99
100         chk1 = inb(ioaddr + 0x1f);      /* Get Proteon ID reg 1 */
101         if (chk1 != 0x1f) 
102                 goto nodev;
103
104         chk1 = inb(ioaddr + 0x1e) & 0x07;       /* Get Proteon ID reg 0 */
105         for (i=0; i<16; i++) {
106                 chk2 = inb(ioaddr + 0x1e) & 0x07;
107                 if (((chk1 + 1) & 0x07) != chk2)
108                         goto nodev;
109                 chk1 = chk2;
110         }
111
112         dev->base_addr = ioaddr;
113         return (0);
114 nodev:
115         release_region(ioaddr, PROTEON_IO_EXTENT); 
116         return -ENODEV;
117 }
118
119 static int __init setup_card(struct net_device *dev, struct device *pdev)
120 {
121         struct net_local *tp;
122         static int versionprinted;
123         const unsigned *port;
124         int j,err = 0;
125         DECLARE_MAC_BUF(mac);
126
127         if (!dev)
128                 return -ENOMEM;
129
130         if (dev->base_addr)     /* probe specific location */
131                 err = proteon_probe1(dev, dev->base_addr);
132         else {
133                 for (port = portlist; *port; port++) {
134                         err = proteon_probe1(dev, *port);
135                         if (!err)
136                                 break;
137                 }
138         }
139         if (err)
140                 goto out5;
141
142         /* At this point we have found a valid card. */
143
144         if (versionprinted++ == 0)
145                 printk(KERN_DEBUG "%s", version);
146
147         err = -EIO;
148         pdev->dma_mask = &dma_mask;
149         if (tmsdev_init(dev, pdev))
150                 goto out4;
151
152         dev->base_addr &= ~3; 
153                 
154         proteon_read_eeprom(dev);
155
156         printk(KERN_DEBUG "proteon.c:    Ring Station Address: %s\n",
157                print_mac(mac, dev->dev_addr));
158                 
159         tp = netdev_priv(dev);
160         tp->setnselout = proteon_setnselout_pins;
161                 
162         tp->sifreadb = proteon_sifreadb;
163         tp->sifreadw = proteon_sifreadw;
164         tp->sifwriteb = proteon_sifwriteb;
165         tp->sifwritew = proteon_sifwritew;
166         
167         memcpy(tp->ProductID, cardname, PROD_ID_SIZE + 1);
168
169         tp->tmspriv = NULL;
170
171         dev->open = proteon_open;
172         dev->stop = tms380tr_close;
173
174         if (dev->irq == 0)
175         {
176                 for(j = 0; irqlist[j] != 0; j++)
177                 {
178                         dev->irq = irqlist[j];
179                         if (!request_irq(dev->irq, tms380tr_interrupt, 0, 
180                                 cardname, dev))
181                                 break;
182                 }
183                 
184                 if(irqlist[j] == 0)
185                 {
186                         printk(KERN_INFO "proteon.c: AutoSelect no IRQ available\n");
187                         goto out3;
188                 }
189         }
190         else
191         {
192                 for(j = 0; irqlist[j] != 0; j++)
193                         if (irqlist[j] == dev->irq)
194                                 break;
195                 if (irqlist[j] == 0)
196                 {
197                         printk(KERN_INFO "proteon.c: Illegal IRQ %d specified\n",
198                                 dev->irq);
199                         goto out3;
200                 }
201                 if (request_irq(dev->irq, tms380tr_interrupt, 0, 
202                         cardname, dev))
203                 {
204                         printk(KERN_INFO "proteon.c: Selected IRQ %d not available\n",
205                                 dev->irq);
206                         goto out3;
207                 }
208         }
209
210         if (dev->dma == 0)
211         {
212                 for(j = 0; dmalist[j] != 0; j++)
213                 {
214                         dev->dma = dmalist[j];
215                         if (!request_dma(dev->dma, cardname))
216                                 break;
217                 }
218
219                 if(dmalist[j] == 0)
220                 {
221                         printk(KERN_INFO "proteon.c: AutoSelect no DMA available\n");
222                         goto out2;
223                 }
224         }
225         else
226         {
227                 for(j = 0; dmalist[j] != 0; j++)
228                         if (dmalist[j] == dev->dma)
229                                 break;
230                 if (dmalist[j] == 0)
231                 {
232                         printk(KERN_INFO "proteon.c: Illegal DMA %d specified\n",
233                                 dev->dma);
234                         goto out2;
235                 }
236                 if (request_dma(dev->dma, cardname))
237                 {
238                         printk(KERN_INFO "proteon.c: Selected DMA %d not available\n",
239                                 dev->dma);
240                         goto out2;
241                 }
242         }
243
244         err = register_netdev(dev);
245         if (err)
246                 goto out;
247
248         printk(KERN_DEBUG "%s:    IO: %#4lx  IRQ: %d  DMA: %d\n",
249                dev->name, dev->base_addr, dev->irq, dev->dma);
250
251         return 0;
252 out:
253         free_dma(dev->dma);
254 out2:
255         free_irq(dev->irq, dev);
256 out3:
257         tmsdev_term(dev);
258 out4:
259         release_region(dev->base_addr, PROTEON_IO_EXTENT);
260 out5:
261         return err;
262 }
263
264 /*
265  * Reads MAC address from adapter RAM, which should've read it from
266  * the onboard ROM.  
267  *
268  * Calling this on a board that does not support it can be a very
269  * dangerous thing.  The Madge board, for instance, will lock your
270  * machine hard when this is called.  Luckily, its supported in a
271  * separate driver.  --ASF
272  */
273 static void proteon_read_eeprom(struct net_device *dev)
274 {
275         int i;
276         
277         /* Address: 0000:0000 */
278         proteon_sifwritew(dev, 0, SIFADX);
279         proteon_sifwritew(dev, 0, SIFADR);      
280         
281         /* Read six byte MAC address data */
282         dev->addr_len = 6;
283         for(i = 0; i < 6; i++)
284                 dev->dev_addr[i] = proteon_sifreadw(dev, SIFINC) >> 8;
285 }
286
287 unsigned short proteon_setnselout_pins(struct net_device *dev)
288 {
289         return 0;
290 }
291
292 static int proteon_open(struct net_device *dev)
293 {  
294         struct net_local *tp = netdev_priv(dev);
295         unsigned short val = 0;
296         int i;
297
298         /* Proteon reset sequence */
299         outb(0, dev->base_addr + 0x11);
300         mdelay(20);
301         outb(0x04, dev->base_addr + 0x11);
302         mdelay(20);
303         outb(0, dev->base_addr + 0x11);
304         mdelay(100);
305
306         /* set control/status reg */
307         val = inb(dev->base_addr + 0x11);
308         val |= 0x78;
309         val &= 0xf9;
310         if(tp->DataRate == SPEED_4)
311                 val |= 0x20;
312         else
313                 val &= ~0x20;
314
315         outb(val, dev->base_addr + 0x11);
316         outb(0xff, dev->base_addr + 0x12);
317         for(i = 0; irqlist[i] != 0; i++)
318         {
319                 if(irqlist[i] == dev->irq)
320                         break;
321         }
322         val = i;
323         i = (7 - dev->dma) << 4;
324         val |= i;
325         outb(val, dev->base_addr + 0x13);
326
327         return tms380tr_open(dev);
328 }
329
330 #define ISATR_MAX_ADAPTERS 3
331
332 static int io[ISATR_MAX_ADAPTERS];
333 static int irq[ISATR_MAX_ADAPTERS];
334 static int dma[ISATR_MAX_ADAPTERS];
335
336 MODULE_LICENSE("GPL");
337
338 module_param_array(io, int, NULL, 0);
339 module_param_array(irq, int, NULL, 0);
340 module_param_array(dma, int, NULL, 0);
341
342 static struct platform_device *proteon_dev[ISATR_MAX_ADAPTERS];
343
344 static struct platform_driver proteon_driver = {
345         .driver         = {
346                 .name   = "proteon",
347         },
348 };
349
350 static int __init proteon_init(void)
351 {
352         struct net_device *dev;
353         struct platform_device *pdev;
354         int i, num = 0, err = 0;
355
356         err = platform_driver_register(&proteon_driver);
357         if (err)
358                 return err;
359
360         for (i = 0; i < ISATR_MAX_ADAPTERS ; i++) {
361                 dev = alloc_trdev(sizeof(struct net_local));
362                 if (!dev)
363                         continue;
364
365                 dev->base_addr = io[i];
366                 dev->irq = irq[i];
367                 dev->dma = dma[i];
368                 pdev = platform_device_register_simple("proteon",
369                         i, NULL, 0);
370                 if (IS_ERR(pdev)) {
371                         free_netdev(dev);
372                         continue;
373                 }
374                 err = setup_card(dev, &pdev->dev);
375                 if (!err) {
376                         proteon_dev[i] = pdev;
377                         platform_set_drvdata(pdev, dev);
378                         ++num;
379                 } else {
380                         platform_device_unregister(pdev);
381                         free_netdev(dev);
382                 }
383         }
384
385         printk(KERN_NOTICE "proteon.c: %d cards found.\n", num);
386         /* Probe for cards. */
387         if (num == 0) {
388                 printk(KERN_NOTICE "proteon.c: No cards found.\n");
389                 platform_driver_unregister(&proteon_driver);
390                 return -ENODEV;
391         }
392         return 0;
393 }
394
395 static void __exit proteon_cleanup(void)
396 {
397         struct net_device *dev;
398         int i;
399
400         for (i = 0; i < ISATR_MAX_ADAPTERS ; i++) {
401                 struct platform_device *pdev = proteon_dev[i];
402                 
403                 if (!pdev)
404                         continue;
405                 dev = platform_get_drvdata(pdev);
406                 unregister_netdev(dev);
407                 release_region(dev->base_addr, PROTEON_IO_EXTENT);
408                 free_irq(dev->irq, dev);
409                 free_dma(dev->dma);
410                 tmsdev_term(dev);
411                 free_netdev(dev);
412                 platform_set_drvdata(pdev, NULL);
413                 platform_device_unregister(pdev);
414         }
415         platform_driver_unregister(&proteon_driver);
416 }
417
418 module_init(proteon_init);
419 module_exit(proteon_cleanup);