aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/net/tokenring/proteon.c
blob: 675b063508e37a8b66117594b4c50c3f66cfbadd (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
/*
 *  proteon.c: A network driver for Proteon ISA token ring cards.
 *
 *  Based on tmspci written 1999 by Adam Fritzler
 *  
 *  Written 2003 by Jochen Friedrich
 *
 *  This software may be used and distributed according to the terms
 *  of the GNU General Public License, incorporated herein by reference.
 *
 *  This driver module supports the following cards:
 *	- Proteon 1392, 1392+
 *
 *  Maintainer(s):
 *    AF        Adam Fritzler           mid@auk.cx
 *    JF	Jochen Friedrich	jochen@scram.de
 *
 *  Modification History:
 *	02-Jan-03	JF	Created
 *
 */
static const char version[] = "proteon.c: v1.00 02/01/2003 by Jochen Friedrich\n";

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/delay.h>
#include <linux/errno.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/netdevice.h>
#include <linux/trdevice.h>

#include <asm/system.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/pci.h>
#include <asm/dma.h>

#include "tms380tr.h"

#define PROTEON_IO_EXTENT 32

/* A zero-terminated list of I/O addresses to be probed. */
static unsigned int portlist[] __initdata = {
	0x0A20, 0x0E20, 0x1A20, 0x1E20, 0x2A20, 0x2E20, 0x3A20, 0x3E20,// Prot.
	0x4A20, 0x4E20, 0x5A20, 0x5E20, 0x6A20, 0x6E20, 0x7A20, 0x7E20,// Prot.
	0x8A20, 0x8E20, 0x9A20, 0x9E20, 0xAA20, 0xAE20, 0xBA20, 0xBE20,// Prot.
	0xCA20, 0xCE20, 0xDA20, 0xDE20, 0xEA20, 0xEE20, 0xFA20, 0xFE20,// Prot.
	0
};

/* A zero-terminated list of IRQs to be probed. */
static unsigned short irqlist[] = {
	7, 6, 5, 4, 3, 12, 11, 10, 9,
	0
};

/* A zero-terminated list of DMAs to be probed. */
static int dmalist[] __initdata = {
	5, 6, 7,
	0
};

static char cardname[] = "Proteon 1392\0";

struct net_device *proteon_probe(int unit);
static int proteon_open(struct net_device *dev);
static void proteon_read_eeprom(struct net_device *dev);
static unsigned short proteon_setnselout_pins(struct net_device *dev);

static unsigned short proteon_sifreadb(struct net_device *dev, unsigned short reg)
{
	return inb(dev->base_addr + reg);
}

static unsigned short proteon_sifreadw(struct net_device *dev, unsigned short reg)
{
	return inw(dev->base_addr + reg);
}

static void proteon_sifwriteb(struct net_device *dev, unsigned short val, unsigned short reg)
{
	outb(val, dev->base_addr + reg);
}

static void proteon_sifwritew(struct net_device *dev, unsigned short val, unsigned short reg)
{
	outw(val, dev->base_addr + reg);
}

static int __init proteon_probe1(struct net_device *dev, int ioaddr)
{
	unsigned char chk1, chk2;
	int i;

	if (!request_region(ioaddr, PROTEON_IO_EXTENT, cardname))
		return -ENODEV;
		

	chk1 = inb(ioaddr + 0x1f);      /* Get Proteon ID reg 1 */
	if (chk1 != 0x1f) 
		goto nodev;

	chk1 = inb(ioaddr + 0x1e) & 0x07;       /* Get Proteon ID reg 0 */
	for (i=0; i<16; i++) {
		chk2 = inb(ioaddr + 0x1e) & 0x07;
		if (((chk1 + 1) & 0x07) != chk2)
			goto nodev;
		chk1 = chk2;
	}

	dev->base_addr = ioaddr;
	return (0);
nodev:
	release_region(ioaddr, PROTEON_IO_EXTENT); 
	return -ENODEV;
}

static int __init setup_card(struct net_device *dev)
{
	struct net_local *tp;
        static int versionprinted;
	const unsigned *port;
	int j,err = 0;

	if (!dev)
		return -ENOMEM;

	SET_MODULE_OWNER(dev);
	if (dev->base_addr)	/* probe specific location */
		err = proteon_probe1(dev, dev->base_addr);
	else {
		for (port = portlist; *port; port++) {
			err = proteon_probe1(dev, *port);
			if (!err)
				break;
		}
	}
	if (err)
		goto out4;

	/* At this point we have found a valid card. */

	if (versionprinted++ == 0)
		printk(KERN_DEBUG "%s", version);

	err = -EIO;
	if (tmsdev_init(dev, ISA_MAX_ADDRESS, NULL))
		goto out4;

	dev->base_addr &= ~3; 
		
	proteon_read_eeprom(dev);

	printk(KERN_DEBUG "%s:    Ring Station Address: ", dev->name);
	printk("%2.2x", dev->dev_addr[0]);
	for (j = 1; j < 6; j++)
		printk(":%2.2x", dev->dev_addr[j]);
	printk("\n");
		
	tp = netdev_priv(dev);
	tp->setnselout = proteon_setnselout_pins;
		
	tp->sifreadb = proteon_sifreadb;
	tp->sifreadw = proteon_sifreadw;
	tp->sifwriteb = proteon_sifwriteb;
	tp->sifwritew = proteon_sifwritew;
	
	memcpy(tp->ProductID, cardname, PROD_ID_SIZE + 1);

	tp->tmspriv = NULL;

	dev->open = proteon_open;
	dev->stop = tms380tr_close;

	if (dev->irq == 0)
	{
		for(j = 0; irqlist[j] != 0; j++)
		{
			dev->irq = irqlist[j];
			if (!request_irq(dev->irq, tms380tr_interrupt, 0, 
				cardname, dev))
				break;
                }
		
                if(irqlist[j] == 0)
                {
                        printk(KERN_INFO "%s: AutoSelect no IRQ available\n", dev->name);
			goto out3;
		}
	}
	else
	{
		for(j = 0; irqlist[j] != 0; j++)
			if (irqlist[j] == dev->irq)
				break;
		if (irqlist[j] == 0)
		{
			printk(KERN_INFO "%s: Illegal IRQ %d specified\n",
				dev->name, dev->irq);
			goto out3;
		}
		if (request_irq(dev->irq, tms380tr_interrupt, 0, 
			cardname, dev))
		{
                        printk(KERN_INFO "%s: Selected IRQ %d not available\n", 
				dev->name, dev->irq);
			goto out3;
		}
	}

	if (dev->dma == 0)
	{
		for(j = 0; dmalist[j] != 0; j++)
		{
			dev->dma = dmalist[j];
                        if (!request_dma(dev->dma, cardname))
				break;
		}

		if(dmalist[j] == 0)
		{
			printk(KERN_INFO "%s: AutoSelect no DMA available\n", dev->name);
			goto out2;
		}
	}
	else
	{
		for(j = 0; dmalist[j] != 0; j++)
			if (dmalist[j] == dev->dma)
				break;
		if (dmalist[j] == 0)
		{
                        printk(KERN_INFO "%s: Illegal DMA %d specified\n", 
				dev->name, dev->dma);
			goto out2;
		}
		if (request_dma(dev->dma, cardname))
		{
                        printk(KERN_INFO "%s: Selected DMA %d not available\n", 
				dev->name, dev->dma);
			goto out2;
		}
	}

	printk(KERN_DEBUG "%s:    IO: %#4lx  IRQ: %d  DMA: %d\n",
	       dev->name, dev->base_addr, dev->irq, dev->dma);
		
	err = register_netdev(dev);
	if (err)
		goto out;

	return 0;
out:
	free_dma(dev->dma);
out2:
	free_irq(dev->irq, dev);
out3:
	tmsdev_term(dev);
out4:
	release_region(dev->base_addr, PROTEON_IO_EXTENT); 
	return err;
}

struct net_device * __init proteon_probe(int unit)
{
	struct net_device *dev = alloc_trdev(sizeof(struct net_local));
	int err = 0;

	if (!dev)
		return ERR_PTR(-ENOMEM);

	if (unit >= 0) {
		sprintf(dev->name, "tr%d", unit);
		netdev_boot_setup_check(dev);
	}

	err = setup_card(dev);
	if (err)
		goto out;

	return dev;

out:
	free_netdev(dev);
	return ERR_PTR(err);
}

/*
 * Reads MAC address from adapter RAM, which should've read it from
 * the onboard ROM.  
 *
 * Calling this on a board that does not support it can be a very
 * dangerous thing.  The Madge board, for instance, will lock your
 * machine hard when this is called.  Luckily, its supported in a
 * separate driver.  --ASF
 */
static void proteon_read_eeprom(struct net_device *dev)
{
	int i;
	
	/* Address: 0000:0000 */
	proteon_sifwritew(dev, 0, SIFADX);
	proteon_sifwritew(dev, 0, SIFADR);	
	
	/* Read six byte MAC address data */
	dev->addr_len = 6;
	for(i = 0; i < 6; i++)
		dev->dev_addr[i] = proteon_sifreadw(dev, SIFINC) >> 8;
}

unsigned short proteon_setnselout_pins(struct net_device *dev)
{
	return 0;
}

static int proteon_open(struct net_device *dev)
{  
	struct net_local *tp = netdev_priv(dev);
	unsigned short val = 0;
	int i;

	/* Proteon reset sequence */
	outb(0, dev->base_addr + 0x11);
	mdelay(20);
	outb(0x04, dev->base_addr + 0x11);
	mdelay(20);
	outb(0, dev->base_addr + 0x11);
	mdelay(100);

	/* set control/status reg */
	val = inb(dev->base_addr + 0x11);
	val |= 0x78;
	val &= 0xf9;
	if(tp->DataRate == SPEED_4)
		val |= 0x20;
	else
		val &= ~0x20;

	outb(val, dev->base_addr + 0x11);
	outb(0xff, dev->base_addr + 0x12);
	for(i = 0; irqlist[i] != 0; i++)
	{
		if(irqlist[i] == dev->irq)
			break;
	}
	val = i;
	i = (7 - dev->dma) << 4;
	val |= i;
	outb(val, dev->base_addr + 0x13);

	return tms380tr_open(dev);
}

#ifdef MODULE

#define ISATR_MAX_ADAPTERS 3

static int io[ISATR_MAX_ADAPTERS];
static int irq[ISATR_MAX_ADAPTERS];
static int dma[ISATR_MAX_ADAPTERS];

MODULE_LICENSE("GPL");

module_param_array(io, int, NULL, 0);
module_param_array(irq, int, NULL, 0);
module_param_array(dma, int, NULL, 0);

static struct net_device *proteon_dev[ISATR_MAX_ADAPTERS];

int init_module(void)
{
	struct net_device *dev;
	int i, num = 0, err = 0;

	for (i = 0; i < ISATR_MAX_ADAPTERS ; i++) {
		dev = alloc_trdev(sizeof(struct net_local));
		if (!dev)
			continue;

		dev->base_addr = io[i];
		dev->irq = irq[i];
		dev->dma = dma[i];
		err = setup_card(dev);
		if (!err) {
			proteon_dev[i] = dev;
			++num;
		} else {
			free_netdev(dev);
		}
	}

	printk(KERN_NOTICE "proteon.c: %d cards found.\n", num);
	/* Probe for cards. */
	if (num == 0) {
		printk(KERN_NOTICE "proteon.c: No cards found.\n");
		return (-ENODEV);
	}
	return (0);
}

void cleanup_module(void)
{
	int i;

	for (i = 0; i < ISATR_MAX_ADAPTERS ; i++) {
		struct net_device *dev = proteon_dev[i];
		
		if (!dev) 
			continue;
		
		unregister_netdev(dev);
		release_region(dev->base_addr, PROTEON_IO_EXTENT);
		free_irq(dev->irq, dev);
		free_dma(dev->dma);
		tmsdev_term(dev);
		free_netdev(dev);
	}
}
#endif /* MODULE */


/*
 * Local variables:
 *  compile-command: "gcc -DMODVERSIONS  -DMODULE -D__KERNEL__ -Wall -Wstrict-prototypes -O6 -fomit-frame-pointer -I/usr/src/linux/drivers/net/tokenring/ -c proteon.c"
 *  alt-compile-command: "gcc -DMODULE -D__KERNEL__ -Wall -Wstrict-prototypes -O6 -fomit-frame-pointer -I/usr/src/linux/drivers/net/tokenring/ -c proteon.c"
 *  c-set-style "K&R"
 *  c-indent-level: 8
 *  c-basic-offset: 8
 *  tab-width: 8
 * End:
 */