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1da177e4 LT |
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 mid@auk.cx | |
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 | ||
33 | #include <asm/system.h> | |
34 | #include <asm/io.h> | |
35 | #include <asm/irq.h> | |
36 | #include <asm/pci.h> | |
37 | #include <asm/dma.h> | |
38 | ||
39 | #include "tms380tr.h" | |
40 | ||
41 | #define PROTEON_IO_EXTENT 32 | |
42 | ||
43 | /* A zero-terminated list of I/O addresses to be probed. */ | |
44 | static unsigned int portlist[] __initdata = { | |
45 | 0x0A20, 0x0E20, 0x1A20, 0x1E20, 0x2A20, 0x2E20, 0x3A20, 0x3E20,// Prot. | |
46 | 0x4A20, 0x4E20, 0x5A20, 0x5E20, 0x6A20, 0x6E20, 0x7A20, 0x7E20,// Prot. | |
47 | 0x8A20, 0x8E20, 0x9A20, 0x9E20, 0xAA20, 0xAE20, 0xBA20, 0xBE20,// Prot. | |
48 | 0xCA20, 0xCE20, 0xDA20, 0xDE20, 0xEA20, 0xEE20, 0xFA20, 0xFE20,// Prot. | |
49 | 0 | |
50 | }; | |
51 | ||
52 | /* A zero-terminated list of IRQs to be probed. */ | |
53 | static unsigned short irqlist[] = { | |
54 | 7, 6, 5, 4, 3, 12, 11, 10, 9, | |
55 | 0 | |
56 | }; | |
57 | ||
58 | /* A zero-terminated list of DMAs to be probed. */ | |
59 | static int dmalist[] __initdata = { | |
60 | 5, 6, 7, | |
61 | 0 | |
62 | }; | |
63 | ||
64 | static char cardname[] = "Proteon 1392\0"; | |
65 | ||
66 | struct net_device *proteon_probe(int unit); | |
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) | |
120 | { | |
121 | struct net_local *tp; | |
122 | static int versionprinted; | |
123 | const unsigned *port; | |
124 | int j,err = 0; | |
125 | ||
126 | if (!dev) | |
127 | return -ENOMEM; | |
128 | ||
129 | SET_MODULE_OWNER(dev); | |
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 out4; | |
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 | if (tmsdev_init(dev, ISA_MAX_ADDRESS, NULL)) | |
149 | goto out4; | |
150 | ||
151 | dev->base_addr &= ~3; | |
152 | ||
153 | proteon_read_eeprom(dev); | |
154 | ||
155 | printk(KERN_DEBUG "%s: Ring Station Address: ", dev->name); | |
156 | printk("%2.2x", dev->dev_addr[0]); | |
157 | for (j = 1; j < 6; j++) | |
158 | printk(":%2.2x", dev->dev_addr[j]); | |
159 | printk("\n"); | |
160 | ||
161 | tp = netdev_priv(dev); | |
162 | tp->setnselout = proteon_setnselout_pins; | |
163 | ||
164 | tp->sifreadb = proteon_sifreadb; | |
165 | tp->sifreadw = proteon_sifreadw; | |
166 | tp->sifwriteb = proteon_sifwriteb; | |
167 | tp->sifwritew = proteon_sifwritew; | |
168 | ||
169 | memcpy(tp->ProductID, cardname, PROD_ID_SIZE + 1); | |
170 | ||
171 | tp->tmspriv = NULL; | |
172 | ||
173 | dev->open = proteon_open; | |
174 | dev->stop = tms380tr_close; | |
175 | ||
176 | if (dev->irq == 0) | |
177 | { | |
178 | for(j = 0; irqlist[j] != 0; j++) | |
179 | { | |
180 | dev->irq = irqlist[j]; | |
181 | if (!request_irq(dev->irq, tms380tr_interrupt, 0, | |
182 | cardname, dev)) | |
183 | break; | |
184 | } | |
185 | ||
186 | if(irqlist[j] == 0) | |
187 | { | |
188 | printk(KERN_INFO "%s: AutoSelect no IRQ available\n", dev->name); | |
189 | goto out3; | |
190 | } | |
191 | } | |
192 | else | |
193 | { | |
194 | for(j = 0; irqlist[j] != 0; j++) | |
195 | if (irqlist[j] == dev->irq) | |
196 | break; | |
197 | if (irqlist[j] == 0) | |
198 | { | |
199 | printk(KERN_INFO "%s: Illegal IRQ %d specified\n", | |
200 | dev->name, dev->irq); | |
201 | goto out3; | |
202 | } | |
203 | if (request_irq(dev->irq, tms380tr_interrupt, 0, | |
204 | cardname, dev)) | |
205 | { | |
206 | printk(KERN_INFO "%s: Selected IRQ %d not available\n", | |
207 | dev->name, dev->irq); | |
208 | goto out3; | |
209 | } | |
210 | } | |
211 | ||
212 | if (dev->dma == 0) | |
213 | { | |
214 | for(j = 0; dmalist[j] != 0; j++) | |
215 | { | |
216 | dev->dma = dmalist[j]; | |
217 | if (!request_dma(dev->dma, cardname)) | |
218 | break; | |
219 | } | |
220 | ||
221 | if(dmalist[j] == 0) | |
222 | { | |
223 | printk(KERN_INFO "%s: AutoSelect no DMA available\n", dev->name); | |
224 | goto out2; | |
225 | } | |
226 | } | |
227 | else | |
228 | { | |
229 | for(j = 0; dmalist[j] != 0; j++) | |
230 | if (dmalist[j] == dev->dma) | |
231 | break; | |
232 | if (dmalist[j] == 0) | |
233 | { | |
234 | printk(KERN_INFO "%s: Illegal DMA %d specified\n", | |
235 | dev->name, dev->dma); | |
236 | goto out2; | |
237 | } | |
238 | if (request_dma(dev->dma, cardname)) | |
239 | { | |
240 | printk(KERN_INFO "%s: Selected DMA %d not available\n", | |
241 | dev->name, dev->dma); | |
242 | goto out2; | |
243 | } | |
244 | } | |
245 | ||
246 | printk(KERN_DEBUG "%s: IO: %#4lx IRQ: %d DMA: %d\n", | |
247 | dev->name, dev->base_addr, dev->irq, dev->dma); | |
248 | ||
249 | err = register_netdev(dev); | |
250 | if (err) | |
251 | goto out; | |
252 | ||
253 | return 0; | |
254 | out: | |
255 | free_dma(dev->dma); | |
256 | out2: | |
257 | free_irq(dev->irq, dev); | |
258 | out3: | |
259 | tmsdev_term(dev); | |
260 | out4: | |
261 | release_region(dev->base_addr, PROTEON_IO_EXTENT); | |
262 | return err; | |
263 | } | |
264 | ||
265 | struct net_device * __init proteon_probe(int unit) | |
266 | { | |
267 | struct net_device *dev = alloc_trdev(sizeof(struct net_local)); | |
268 | int err = 0; | |
269 | ||
270 | if (!dev) | |
271 | return ERR_PTR(-ENOMEM); | |
272 | ||
273 | if (unit >= 0) { | |
274 | sprintf(dev->name, "tr%d", unit); | |
275 | netdev_boot_setup_check(dev); | |
276 | } | |
277 | ||
278 | err = setup_card(dev); | |
279 | if (err) | |
280 | goto out; | |
281 | ||
282 | return dev; | |
283 | ||
284 | out: | |
285 | free_netdev(dev); | |
286 | return ERR_PTR(err); | |
287 | } | |
288 | ||
289 | /* | |
290 | * Reads MAC address from adapter RAM, which should've read it from | |
291 | * the onboard ROM. | |
292 | * | |
293 | * Calling this on a board that does not support it can be a very | |
294 | * dangerous thing. The Madge board, for instance, will lock your | |
295 | * machine hard when this is called. Luckily, its supported in a | |
296 | * separate driver. --ASF | |
297 | */ | |
298 | static void proteon_read_eeprom(struct net_device *dev) | |
299 | { | |
300 | int i; | |
301 | ||
302 | /* Address: 0000:0000 */ | |
303 | proteon_sifwritew(dev, 0, SIFADX); | |
304 | proteon_sifwritew(dev, 0, SIFADR); | |
305 | ||
306 | /* Read six byte MAC address data */ | |
307 | dev->addr_len = 6; | |
308 | for(i = 0; i < 6; i++) | |
309 | dev->dev_addr[i] = proteon_sifreadw(dev, SIFINC) >> 8; | |
310 | } | |
311 | ||
312 | unsigned short proteon_setnselout_pins(struct net_device *dev) | |
313 | { | |
314 | return 0; | |
315 | } | |
316 | ||
317 | static int proteon_open(struct net_device *dev) | |
318 | { | |
319 | struct net_local *tp = netdev_priv(dev); | |
320 | unsigned short val = 0; | |
321 | int i; | |
322 | ||
323 | /* Proteon reset sequence */ | |
324 | outb(0, dev->base_addr + 0x11); | |
325 | mdelay(20); | |
326 | outb(0x04, dev->base_addr + 0x11); | |
327 | mdelay(20); | |
328 | outb(0, dev->base_addr + 0x11); | |
329 | mdelay(100); | |
330 | ||
331 | /* set control/status reg */ | |
332 | val = inb(dev->base_addr + 0x11); | |
333 | val |= 0x78; | |
334 | val &= 0xf9; | |
335 | if(tp->DataRate == SPEED_4) | |
336 | val |= 0x20; | |
337 | else | |
338 | val &= ~0x20; | |
339 | ||
340 | outb(val, dev->base_addr + 0x11); | |
341 | outb(0xff, dev->base_addr + 0x12); | |
342 | for(i = 0; irqlist[i] != 0; i++) | |
343 | { | |
344 | if(irqlist[i] == dev->irq) | |
345 | break; | |
346 | } | |
347 | val = i; | |
348 | i = (7 - dev->dma) << 4; | |
349 | val |= i; | |
350 | outb(val, dev->base_addr + 0x13); | |
351 | ||
352 | return tms380tr_open(dev); | |
353 | } | |
354 | ||
355 | #ifdef MODULE | |
356 | ||
357 | #define ISATR_MAX_ADAPTERS 3 | |
358 | ||
359 | static int io[ISATR_MAX_ADAPTERS]; | |
360 | static int irq[ISATR_MAX_ADAPTERS]; | |
361 | static int dma[ISATR_MAX_ADAPTERS]; | |
362 | ||
363 | MODULE_LICENSE("GPL"); | |
364 | ||
365 | module_param_array(io, int, NULL, 0); | |
366 | module_param_array(irq, int, NULL, 0); | |
367 | module_param_array(dma, int, NULL, 0); | |
368 | ||
369 | static struct net_device *proteon_dev[ISATR_MAX_ADAPTERS]; | |
370 | ||
371 | int init_module(void) | |
372 | { | |
373 | struct net_device *dev; | |
374 | int i, num = 0, err = 0; | |
375 | ||
376 | for (i = 0; i < ISATR_MAX_ADAPTERS ; i++) { | |
377 | dev = alloc_trdev(sizeof(struct net_local)); | |
378 | if (!dev) | |
379 | continue; | |
380 | ||
381 | dev->base_addr = io[i]; | |
382 | dev->irq = irq[i]; | |
383 | dev->dma = dma[i]; | |
384 | err = setup_card(dev); | |
385 | if (!err) { | |
386 | proteon_dev[i] = dev; | |
387 | ++num; | |
388 | } else { | |
389 | free_netdev(dev); | |
390 | } | |
391 | } | |
392 | ||
393 | printk(KERN_NOTICE "proteon.c: %d cards found.\n", num); | |
394 | /* Probe for cards. */ | |
395 | if (num == 0) { | |
396 | printk(KERN_NOTICE "proteon.c: No cards found.\n"); | |
397 | return (-ENODEV); | |
398 | } | |
399 | return (0); | |
400 | } | |
401 | ||
402 | void cleanup_module(void) | |
403 | { | |
404 | int i; | |
405 | ||
406 | for (i = 0; i < ISATR_MAX_ADAPTERS ; i++) { | |
407 | struct net_device *dev = proteon_dev[i]; | |
408 | ||
409 | if (!dev) | |
410 | continue; | |
411 | ||
412 | unregister_netdev(dev); | |
413 | release_region(dev->base_addr, PROTEON_IO_EXTENT); | |
414 | free_irq(dev->irq, dev); | |
415 | free_dma(dev->dma); | |
416 | tmsdev_term(dev); | |
417 | free_netdev(dev); | |
418 | } | |
419 | } | |
420 | #endif /* MODULE */ | |
421 | ||
422 | \f | |
423 | /* | |
424 | * Local variables: | |
425 | * compile-command: "gcc -DMODVERSIONS -DMODULE -D__KERNEL__ -Wall -Wstrict-prototypes -O6 -fomit-frame-pointer -I/usr/src/linux/drivers/net/tokenring/ -c proteon.c" | |
426 | * alt-compile-command: "gcc -DMODULE -D__KERNEL__ -Wall -Wstrict-prototypes -O6 -fomit-frame-pointer -I/usr/src/linux/drivers/net/tokenring/ -c proteon.c" | |
427 | * c-set-style "K&R" | |
428 | * c-indent-level: 8 | |
429 | * c-basic-offset: 8 | |
430 | * tab-width: 8 | |
431 | * End: | |
432 | */ |