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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * SDLA An implementation of a driver for the Sangoma S502/S508 series | |
3 | * multi-protocol PC interface card. Initial offering is with | |
4 | * the DLCI driver, providing Frame Relay support for linux. | |
5 | * | |
6 | * Global definitions for the Frame relay interface. | |
7 | * | |
8 | * Version: @(#)sdla.c 0.30 12 Sep 1996 | |
9 | * | |
10 | * Credits: Sangoma Technologies, for the use of 2 cards for an extended | |
11 | * period of time. | |
12 | * David Mandelstam <dm@sangoma.com> for getting me started on | |
13 | * this project, and incentive to complete it. | |
14 | * Gene Kozen <74604.152@compuserve.com> for providing me with | |
15 | * important information about the cards. | |
16 | * | |
17 | * Author: Mike McLagan <mike.mclagan@linux.org> | |
18 | * | |
19 | * Changes: | |
20 | * 0.15 Mike McLagan Improved error handling, packet dropping | |
21 | * 0.20 Mike McLagan New transmit/receive flags for config | |
22 | * If in FR mode, don't accept packets from | |
23 | * non DLCI devices. | |
24 | * 0.25 Mike McLagan Fixed problem with rejecting packets | |
25 | * from non DLCI devices. | |
26 | * 0.30 Mike McLagan Fixed kernel panic when used with modified | |
27 | * ifconfig | |
28 | * | |
29 | * This program is free software; you can redistribute it and/or | |
30 | * modify it under the terms of the GNU General Public License | |
31 | * as published by the Free Software Foundation; either version | |
32 | * 2 of the License, or (at your option) any later version. | |
33 | */ | |
34 | ||
86fb0ccf JP |
35 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
36 | ||
1da177e4 LT |
37 | #include <linux/module.h> |
38 | #include <linux/kernel.h> | |
39 | #include <linux/types.h> | |
40 | #include <linux/fcntl.h> | |
41 | #include <linux/interrupt.h> | |
42 | #include <linux/ptrace.h> | |
43 | #include <linux/ioport.h> | |
44 | #include <linux/in.h> | |
45 | #include <linux/slab.h> | |
46 | #include <linux/string.h> | |
47 | #include <linux/timer.h> | |
48 | #include <linux/errno.h> | |
49 | #include <linux/init.h> | |
50 | #include <linux/netdevice.h> | |
51 | #include <linux/skbuff.h> | |
52 | #include <linux/if_arp.h> | |
53 | #include <linux/if_frad.h> | |
54 | #include <linux/sdla.h> | |
55 | #include <linux/bitops.h> | |
56 | ||
1da177e4 LT |
57 | #include <asm/io.h> |
58 | #include <asm/dma.h> | |
7c0f6ba6 | 59 | #include <linux/uaccess.h> |
1da177e4 LT |
60 | |
61 | static const char* version = "SDLA driver v0.30, 12 Sep 1996, mike.mclagan@linux.org"; | |
62 | ||
96ebb928 | 63 | static unsigned int valid_port[] = { 0x250, 0x270, 0x280, 0x300, 0x350, 0x360, 0x380, 0x390}; |
1da177e4 | 64 | |
96ebb928 | 65 | static unsigned int valid_mem[] = { |
1da177e4 LT |
66 | 0xA0000, 0xA2000, 0xA4000, 0xA6000, 0xA8000, 0xAA000, 0xAC000, 0xAE000, |
67 | 0xB0000, 0xB2000, 0xB4000, 0xB6000, 0xB8000, 0xBA000, 0xBC000, 0xBE000, | |
68 | 0xC0000, 0xC2000, 0xC4000, 0xC6000, 0xC8000, 0xCA000, 0xCC000, 0xCE000, | |
69 | 0xD0000, 0xD2000, 0xD4000, 0xD6000, 0xD8000, 0xDA000, 0xDC000, 0xDE000, | |
70 | 0xE0000, 0xE2000, 0xE4000, 0xE6000, 0xE8000, 0xEA000, 0xEC000, 0xEE000}; | |
71 | ||
72 | static DEFINE_SPINLOCK(sdla_lock); | |
73 | ||
74 | /********************************************************* | |
75 | * | |
76 | * these are the core routines that access the card itself | |
77 | * | |
78 | *********************************************************/ | |
79 | ||
80 | #define SDLA_WINDOW(dev,addr) outb((((addr) >> 13) & 0x1F), (dev)->base_addr + SDLA_REG_Z80_WINDOW) | |
81 | ||
82 | static void __sdla_read(struct net_device *dev, int addr, void *buf, short len) | |
83 | { | |
84 | char *temp; | |
85 | const void *base; | |
86 | int offset, bytes; | |
87 | ||
88 | temp = buf; | |
89 | while(len) | |
90 | { | |
91 | offset = addr & SDLA_ADDR_MASK; | |
92 | bytes = offset + len > SDLA_WINDOW_SIZE ? SDLA_WINDOW_SIZE - offset : len; | |
93 | base = (const void *) (dev->mem_start + offset); | |
94 | ||
95 | SDLA_WINDOW(dev, addr); | |
96 | memcpy(temp, base, bytes); | |
97 | ||
98 | addr += bytes; | |
99 | temp += bytes; | |
100 | len -= bytes; | |
101 | } | |
102 | } | |
103 | ||
104 | static void sdla_read(struct net_device *dev, int addr, void *buf, short len) | |
105 | { | |
106 | unsigned long flags; | |
107 | spin_lock_irqsave(&sdla_lock, flags); | |
108 | __sdla_read(dev, addr, buf, len); | |
109 | spin_unlock_irqrestore(&sdla_lock, flags); | |
110 | } | |
111 | ||
112 | static void __sdla_write(struct net_device *dev, int addr, | |
113 | const void *buf, short len) | |
114 | { | |
115 | const char *temp; | |
116 | void *base; | |
117 | int offset, bytes; | |
118 | ||
119 | temp = buf; | |
120 | while(len) | |
121 | { | |
122 | offset = addr & SDLA_ADDR_MASK; | |
123 | bytes = offset + len > SDLA_WINDOW_SIZE ? SDLA_WINDOW_SIZE - offset : len; | |
124 | base = (void *) (dev->mem_start + offset); | |
125 | ||
126 | SDLA_WINDOW(dev, addr); | |
127 | memcpy(base, temp, bytes); | |
128 | ||
129 | addr += bytes; | |
130 | temp += bytes; | |
131 | len -= bytes; | |
132 | } | |
133 | } | |
134 | ||
135 | static void sdla_write(struct net_device *dev, int addr, | |
136 | const void *buf, short len) | |
137 | { | |
138 | unsigned long flags; | |
139 | ||
140 | spin_lock_irqsave(&sdla_lock, flags); | |
141 | __sdla_write(dev, addr, buf, len); | |
142 | spin_unlock_irqrestore(&sdla_lock, flags); | |
143 | } | |
144 | ||
145 | ||
146 | static void sdla_clear(struct net_device *dev) | |
147 | { | |
148 | unsigned long flags; | |
149 | char *base; | |
150 | int len, addr, bytes; | |
151 | ||
152 | len = 65536; | |
153 | addr = 0; | |
154 | bytes = SDLA_WINDOW_SIZE; | |
155 | base = (void *) dev->mem_start; | |
156 | ||
157 | spin_lock_irqsave(&sdla_lock, flags); | |
158 | while(len) | |
159 | { | |
160 | SDLA_WINDOW(dev, addr); | |
161 | memset(base, 0, bytes); | |
162 | ||
163 | addr += bytes; | |
164 | len -= bytes; | |
165 | } | |
166 | spin_unlock_irqrestore(&sdla_lock, flags); | |
167 | ||
168 | } | |
169 | ||
170 | static char sdla_byte(struct net_device *dev, int addr) | |
171 | { | |
172 | unsigned long flags; | |
173 | char byte, *temp; | |
174 | ||
175 | temp = (void *) (dev->mem_start + (addr & SDLA_ADDR_MASK)); | |
176 | ||
177 | spin_lock_irqsave(&sdla_lock, flags); | |
178 | SDLA_WINDOW(dev, addr); | |
179 | byte = *temp; | |
180 | spin_unlock_irqrestore(&sdla_lock, flags); | |
181 | ||
807540ba | 182 | return byte; |
1da177e4 LT |
183 | } |
184 | ||
7665a089 | 185 | static void sdla_stop(struct net_device *dev) |
1da177e4 LT |
186 | { |
187 | struct frad_local *flp; | |
188 | ||
8f15ea42 | 189 | flp = netdev_priv(dev); |
1da177e4 LT |
190 | switch(flp->type) |
191 | { | |
192 | case SDLA_S502A: | |
193 | outb(SDLA_S502A_HALT, dev->base_addr + SDLA_REG_CONTROL); | |
194 | flp->state = SDLA_HALT; | |
195 | break; | |
196 | case SDLA_S502E: | |
197 | outb(SDLA_HALT, dev->base_addr + SDLA_REG_Z80_CONTROL); | |
198 | outb(SDLA_S502E_ENABLE, dev->base_addr + SDLA_REG_CONTROL); | |
199 | flp->state = SDLA_S502E_ENABLE; | |
200 | break; | |
201 | case SDLA_S507: | |
202 | flp->state &= ~SDLA_CPUEN; | |
203 | outb(flp->state, dev->base_addr + SDLA_REG_CONTROL); | |
204 | break; | |
205 | case SDLA_S508: | |
206 | flp->state &= ~SDLA_CPUEN; | |
207 | outb(flp->state, dev->base_addr + SDLA_REG_CONTROL); | |
208 | break; | |
209 | } | |
210 | } | |
211 | ||
7665a089 | 212 | static void sdla_start(struct net_device *dev) |
1da177e4 LT |
213 | { |
214 | struct frad_local *flp; | |
215 | ||
8f15ea42 | 216 | flp = netdev_priv(dev); |
1da177e4 LT |
217 | switch(flp->type) |
218 | { | |
219 | case SDLA_S502A: | |
220 | outb(SDLA_S502A_NMI, dev->base_addr + SDLA_REG_CONTROL); | |
221 | outb(SDLA_S502A_START, dev->base_addr + SDLA_REG_CONTROL); | |
222 | flp->state = SDLA_S502A_START; | |
223 | break; | |
224 | case SDLA_S502E: | |
225 | outb(SDLA_S502E_CPUEN, dev->base_addr + SDLA_REG_Z80_CONTROL); | |
226 | outb(0x00, dev->base_addr + SDLA_REG_CONTROL); | |
227 | flp->state = 0; | |
228 | break; | |
229 | case SDLA_S507: | |
230 | flp->state |= SDLA_CPUEN; | |
231 | outb(flp->state, dev->base_addr + SDLA_REG_CONTROL); | |
232 | break; | |
233 | case SDLA_S508: | |
234 | flp->state |= SDLA_CPUEN; | |
235 | outb(flp->state, dev->base_addr + SDLA_REG_CONTROL); | |
236 | break; | |
237 | } | |
238 | } | |
239 | ||
240 | /**************************************************** | |
241 | * | |
242 | * this is used for the S502A/E cards to determine | |
243 | * the speed of the onboard CPU. Calibration is | |
244 | * necessary for the Frame Relay code uploaded | |
245 | * later. Incorrect results cause timing problems | |
246 | * with link checks & status messages | |
247 | * | |
248 | ***************************************************/ | |
249 | ||
7665a089 | 250 | static int sdla_z80_poll(struct net_device *dev, int z80_addr, int jiffs, char resp1, char resp2) |
1da177e4 LT |
251 | { |
252 | unsigned long start, done, now; | |
253 | char resp, *temp; | |
254 | ||
255 | start = now = jiffies; | |
256 | done = jiffies + jiffs; | |
257 | ||
258 | temp = (void *)dev->mem_start; | |
259 | temp += z80_addr & SDLA_ADDR_MASK; | |
260 | ||
261 | resp = ~resp1; | |
262 | while (time_before(jiffies, done) && (resp != resp1) && (!resp2 || (resp != resp2))) | |
263 | { | |
264 | if (jiffies != now) | |
265 | { | |
266 | SDLA_WINDOW(dev, z80_addr); | |
267 | now = jiffies; | |
268 | resp = *temp; | |
269 | } | |
270 | } | |
807540ba | 271 | return time_before(jiffies, done) ? jiffies - start : -1; |
1da177e4 LT |
272 | } |
273 | ||
274 | /* constants for Z80 CPU speed */ | |
275 | #define Z80_READY '1' /* Z80 is ready to begin */ | |
276 | #define LOADER_READY '2' /* driver is ready to begin */ | |
277 | #define Z80_SCC_OK '3' /* SCC is on board */ | |
278 | #define Z80_SCC_BAD '4' /* SCC was not found */ | |
279 | ||
280 | static int sdla_cpuspeed(struct net_device *dev, struct ifreq *ifr) | |
281 | { | |
282 | int jiffs; | |
283 | char data; | |
284 | ||
285 | sdla_start(dev); | |
286 | if (sdla_z80_poll(dev, 0, 3*HZ, Z80_READY, 0) < 0) | |
807540ba | 287 | return -EIO; |
1da177e4 LT |
288 | |
289 | data = LOADER_READY; | |
290 | sdla_write(dev, 0, &data, 1); | |
291 | ||
292 | if ((jiffs = sdla_z80_poll(dev, 0, 8*HZ, Z80_SCC_OK, Z80_SCC_BAD)) < 0) | |
807540ba | 293 | return -EIO; |
1da177e4 LT |
294 | |
295 | sdla_stop(dev); | |
296 | sdla_read(dev, 0, &data, 1); | |
297 | ||
298 | if (data == Z80_SCC_BAD) | |
299 | { | |
300 | printk("%s: SCC bad\n", dev->name); | |
807540ba | 301 | return -EIO; |
1da177e4 LT |
302 | } |
303 | ||
304 | if (data != Z80_SCC_OK) | |
807540ba | 305 | return -EINVAL; |
1da177e4 LT |
306 | |
307 | if (jiffs < 165) | |
308 | ifr->ifr_mtu = SDLA_CPU_16M; | |
309 | else if (jiffs < 220) | |
310 | ifr->ifr_mtu = SDLA_CPU_10M; | |
311 | else if (jiffs < 258) | |
312 | ifr->ifr_mtu = SDLA_CPU_8M; | |
313 | else if (jiffs < 357) | |
314 | ifr->ifr_mtu = SDLA_CPU_7M; | |
315 | else if (jiffs < 467) | |
316 | ifr->ifr_mtu = SDLA_CPU_5M; | |
317 | else | |
318 | ifr->ifr_mtu = SDLA_CPU_3M; | |
319 | ||
807540ba | 320 | return 0; |
1da177e4 LT |
321 | } |
322 | ||
323 | /************************************************ | |
324 | * | |
325 | * Direct interaction with the Frame Relay code | |
326 | * starts here. | |
327 | * | |
328 | ************************************************/ | |
329 | ||
330 | struct _dlci_stat | |
331 | { | |
6a878184 JB |
332 | short dlci; |
333 | char flags; | |
ba2d3587 | 334 | } __packed; |
1da177e4 LT |
335 | |
336 | struct _frad_stat | |
337 | { | |
338 | char flags; | |
339 | struct _dlci_stat dlcis[SDLA_MAX_DLCI]; | |
340 | }; | |
341 | ||
342 | static void sdla_errors(struct net_device *dev, int cmd, int dlci, int ret, int len, void *data) | |
343 | { | |
344 | struct _dlci_stat *pstatus; | |
345 | short *pdlci; | |
346 | int i; | |
347 | char *state, line[30]; | |
348 | ||
349 | switch (ret) | |
350 | { | |
351 | case SDLA_RET_MODEM: | |
352 | state = data; | |
353 | if (*state & SDLA_MODEM_DCD_LOW) | |
86fb0ccf | 354 | netdev_info(dev, "Modem DCD unexpectedly low!\n"); |
1da177e4 | 355 | if (*state & SDLA_MODEM_CTS_LOW) |
86fb0ccf | 356 | netdev_info(dev, "Modem CTS unexpectedly low!\n"); |
1da177e4 LT |
357 | /* I should probably do something about this! */ |
358 | break; | |
359 | ||
360 | case SDLA_RET_CHANNEL_OFF: | |
86fb0ccf | 361 | netdev_info(dev, "Channel became inoperative!\n"); |
1da177e4 LT |
362 | /* same here */ |
363 | break; | |
364 | ||
365 | case SDLA_RET_CHANNEL_ON: | |
86fb0ccf | 366 | netdev_info(dev, "Channel became operative!\n"); |
1da177e4 LT |
367 | /* same here */ |
368 | break; | |
369 | ||
370 | case SDLA_RET_DLCI_STATUS: | |
86fb0ccf | 371 | netdev_info(dev, "Status change reported by Access Node\n"); |
1da177e4 LT |
372 | len /= sizeof(struct _dlci_stat); |
373 | for(pstatus = data, i=0;i < len;i++,pstatus++) | |
374 | { | |
375 | if (pstatus->flags & SDLA_DLCI_NEW) | |
376 | state = "new"; | |
377 | else if (pstatus->flags & SDLA_DLCI_DELETED) | |
378 | state = "deleted"; | |
379 | else if (pstatus->flags & SDLA_DLCI_ACTIVE) | |
380 | state = "active"; | |
381 | else | |
382 | { | |
383 | sprintf(line, "unknown status: %02X", pstatus->flags); | |
384 | state = line; | |
385 | } | |
86fb0ccf JP |
386 | netdev_info(dev, "DLCI %i: %s\n", |
387 | pstatus->dlci, state); | |
1da177e4 LT |
388 | /* same here */ |
389 | } | |
390 | break; | |
391 | ||
392 | case SDLA_RET_DLCI_UNKNOWN: | |
86fb0ccf | 393 | netdev_info(dev, "Received unknown DLCIs:"); |
1da177e4 LT |
394 | len /= sizeof(short); |
395 | for(pdlci = data,i=0;i < len;i++,pdlci++) | |
86fb0ccf JP |
396 | pr_cont(" %i", *pdlci); |
397 | pr_cont("\n"); | |
1da177e4 LT |
398 | break; |
399 | ||
400 | case SDLA_RET_TIMEOUT: | |
86fb0ccf | 401 | netdev_err(dev, "Command timed out!\n"); |
1da177e4 LT |
402 | break; |
403 | ||
404 | case SDLA_RET_BUF_OVERSIZE: | |
86fb0ccf JP |
405 | netdev_info(dev, "Bc/CIR overflow, acceptable size is %i\n", |
406 | len); | |
1da177e4 LT |
407 | break; |
408 | ||
409 | case SDLA_RET_BUF_TOO_BIG: | |
86fb0ccf JP |
410 | netdev_info(dev, "Buffer size over specified max of %i\n", |
411 | len); | |
1da177e4 LT |
412 | break; |
413 | ||
414 | case SDLA_RET_CHANNEL_INACTIVE: | |
415 | case SDLA_RET_DLCI_INACTIVE: | |
416 | case SDLA_RET_CIR_OVERFLOW: | |
417 | case SDLA_RET_NO_BUFS: | |
418 | if (cmd == SDLA_INFORMATION_WRITE) | |
419 | break; | |
420 | ||
421 | default: | |
86fb0ccf JP |
422 | netdev_dbg(dev, "Cmd 0x%02X generated return code 0x%02X\n", |
423 | cmd, ret); | |
1da177e4 LT |
424 | /* Further processing could be done here */ |
425 | break; | |
426 | } | |
427 | } | |
428 | ||
429 | static int sdla_cmd(struct net_device *dev, int cmd, short dlci, short flags, | |
430 | void *inbuf, short inlen, void *outbuf, short *outlen) | |
431 | { | |
432 | static struct _frad_stat status; | |
433 | struct frad_local *flp; | |
434 | struct sdla_cmd *cmd_buf; | |
435 | unsigned long pflags; | |
436 | unsigned long jiffs; | |
437 | int ret, waiting, len; | |
438 | long window; | |
439 | ||
8f15ea42 | 440 | flp = netdev_priv(dev); |
1da177e4 LT |
441 | window = flp->type == SDLA_S508 ? SDLA_508_CMD_BUF : SDLA_502_CMD_BUF; |
442 | cmd_buf = (struct sdla_cmd *)(dev->mem_start + (window & SDLA_ADDR_MASK)); | |
443 | ret = 0; | |
444 | len = 0; | |
445 | jiffs = jiffies + HZ; /* 1 second is plenty */ | |
446 | ||
447 | spin_lock_irqsave(&sdla_lock, pflags); | |
448 | SDLA_WINDOW(dev, window); | |
449 | cmd_buf->cmd = cmd; | |
450 | cmd_buf->dlci = dlci; | |
451 | cmd_buf->flags = flags; | |
452 | ||
453 | if (inbuf) | |
454 | memcpy(cmd_buf->data, inbuf, inlen); | |
455 | ||
456 | cmd_buf->length = inlen; | |
457 | ||
458 | cmd_buf->opp_flag = 1; | |
459 | spin_unlock_irqrestore(&sdla_lock, pflags); | |
460 | ||
461 | waiting = 1; | |
462 | len = 0; | |
463 | while (waiting && time_before_eq(jiffies, jiffs)) | |
464 | { | |
465 | if (waiting++ % 3) | |
466 | { | |
467 | spin_lock_irqsave(&sdla_lock, pflags); | |
468 | SDLA_WINDOW(dev, window); | |
469 | waiting = ((volatile int)(cmd_buf->opp_flag)); | |
470 | spin_unlock_irqrestore(&sdla_lock, pflags); | |
471 | } | |
472 | } | |
473 | ||
474 | if (!waiting) | |
475 | { | |
476 | ||
477 | spin_lock_irqsave(&sdla_lock, pflags); | |
478 | SDLA_WINDOW(dev, window); | |
479 | ret = cmd_buf->retval; | |
480 | len = cmd_buf->length; | |
481 | if (outbuf && outlen) | |
482 | { | |
483 | *outlen = *outlen >= len ? len : *outlen; | |
484 | ||
485 | if (*outlen) | |
486 | memcpy(outbuf, cmd_buf->data, *outlen); | |
487 | } | |
488 | ||
489 | /* This is a local copy that's used for error handling */ | |
490 | if (ret) | |
491 | memcpy(&status, cmd_buf->data, len > sizeof(status) ? sizeof(status) : len); | |
492 | ||
493 | spin_unlock_irqrestore(&sdla_lock, pflags); | |
494 | } | |
495 | else | |
496 | ret = SDLA_RET_TIMEOUT; | |
497 | ||
498 | if (ret != SDLA_RET_OK) | |
499 | sdla_errors(dev, cmd, dlci, ret, len, &status); | |
500 | ||
807540ba | 501 | return ret; |
1da177e4 LT |
502 | } |
503 | ||
504 | /*********************************************** | |
505 | * | |
506 | * these functions are called by the DLCI driver | |
507 | * | |
508 | ***********************************************/ | |
509 | ||
510 | static int sdla_reconfig(struct net_device *dev); | |
511 | ||
7665a089 | 512 | static int sdla_activate(struct net_device *slave, struct net_device *master) |
1da177e4 LT |
513 | { |
514 | struct frad_local *flp; | |
515 | int i; | |
516 | ||
8f15ea42 | 517 | flp = netdev_priv(slave); |
1da177e4 LT |
518 | |
519 | for(i=0;i<CONFIG_DLCI_MAX;i++) | |
520 | if (flp->master[i] == master) | |
521 | break; | |
522 | ||
523 | if (i == CONFIG_DLCI_MAX) | |
807540ba | 524 | return -ENODEV; |
1da177e4 LT |
525 | |
526 | flp->dlci[i] = abs(flp->dlci[i]); | |
527 | ||
528 | if (netif_running(slave) && (flp->config.station == FRAD_STATION_NODE)) | |
529 | sdla_cmd(slave, SDLA_ACTIVATE_DLCI, 0, 0, &flp->dlci[i], sizeof(short), NULL, NULL); | |
530 | ||
807540ba | 531 | return 0; |
1da177e4 LT |
532 | } |
533 | ||
7665a089 | 534 | static int sdla_deactivate(struct net_device *slave, struct net_device *master) |
1da177e4 LT |
535 | { |
536 | struct frad_local *flp; | |
537 | int i; | |
538 | ||
8f15ea42 | 539 | flp = netdev_priv(slave); |
1da177e4 LT |
540 | |
541 | for(i=0;i<CONFIG_DLCI_MAX;i++) | |
542 | if (flp->master[i] == master) | |
543 | break; | |
544 | ||
545 | if (i == CONFIG_DLCI_MAX) | |
807540ba | 546 | return -ENODEV; |
1da177e4 LT |
547 | |
548 | flp->dlci[i] = -abs(flp->dlci[i]); | |
549 | ||
550 | if (netif_running(slave) && (flp->config.station == FRAD_STATION_NODE)) | |
551 | sdla_cmd(slave, SDLA_DEACTIVATE_DLCI, 0, 0, &flp->dlci[i], sizeof(short), NULL, NULL); | |
552 | ||
807540ba | 553 | return 0; |
1da177e4 LT |
554 | } |
555 | ||
7665a089 | 556 | static int sdla_assoc(struct net_device *slave, struct net_device *master) |
1da177e4 LT |
557 | { |
558 | struct frad_local *flp; | |
559 | int i; | |
560 | ||
561 | if (master->type != ARPHRD_DLCI) | |
807540ba | 562 | return -EINVAL; |
1da177e4 | 563 | |
8f15ea42 | 564 | flp = netdev_priv(slave); |
1da177e4 LT |
565 | |
566 | for(i=0;i<CONFIG_DLCI_MAX;i++) | |
567 | { | |
568 | if (!flp->master[i]) | |
569 | break; | |
570 | if (abs(flp->dlci[i]) == *(short *)(master->dev_addr)) | |
807540ba | 571 | return -EADDRINUSE; |
1da177e4 LT |
572 | } |
573 | ||
574 | if (i == CONFIG_DLCI_MAX) | |
807540ba | 575 | return -EMLINK; /* #### Alan: Comments on this ?? */ |
1da177e4 LT |
576 | |
577 | ||
578 | flp->master[i] = master; | |
579 | flp->dlci[i] = -*(short *)(master->dev_addr); | |
580 | master->mtu = slave->mtu; | |
581 | ||
582 | if (netif_running(slave)) { | |
583 | if (flp->config.station == FRAD_STATION_CPE) | |
584 | sdla_reconfig(slave); | |
585 | else | |
586 | sdla_cmd(slave, SDLA_ADD_DLCI, 0, 0, master->dev_addr, sizeof(short), NULL, NULL); | |
587 | } | |
588 | ||
807540ba | 589 | return 0; |
1da177e4 LT |
590 | } |
591 | ||
7665a089 | 592 | static int sdla_deassoc(struct net_device *slave, struct net_device *master) |
1da177e4 LT |
593 | { |
594 | struct frad_local *flp; | |
595 | int i; | |
596 | ||
8f15ea42 | 597 | flp = netdev_priv(slave); |
1da177e4 LT |
598 | |
599 | for(i=0;i<CONFIG_DLCI_MAX;i++) | |
600 | if (flp->master[i] == master) | |
601 | break; | |
602 | ||
603 | if (i == CONFIG_DLCI_MAX) | |
807540ba | 604 | return -ENODEV; |
1da177e4 LT |
605 | |
606 | flp->master[i] = NULL; | |
607 | flp->dlci[i] = 0; | |
608 | ||
609 | ||
610 | if (netif_running(slave)) { | |
611 | if (flp->config.station == FRAD_STATION_CPE) | |
612 | sdla_reconfig(slave); | |
613 | else | |
614 | sdla_cmd(slave, SDLA_DELETE_DLCI, 0, 0, master->dev_addr, sizeof(short), NULL, NULL); | |
615 | } | |
616 | ||
807540ba | 617 | return 0; |
1da177e4 LT |
618 | } |
619 | ||
7665a089 | 620 | static int sdla_dlci_conf(struct net_device *slave, struct net_device *master, int get) |
1da177e4 LT |
621 | { |
622 | struct frad_local *flp; | |
623 | struct dlci_local *dlp; | |
624 | int i; | |
625 | short len, ret; | |
626 | ||
8f15ea42 | 627 | flp = netdev_priv(slave); |
1da177e4 LT |
628 | |
629 | for(i=0;i<CONFIG_DLCI_MAX;i++) | |
630 | if (flp->master[i] == master) | |
631 | break; | |
632 | ||
633 | if (i == CONFIG_DLCI_MAX) | |
807540ba | 634 | return -ENODEV; |
1da177e4 | 635 | |
8f15ea42 | 636 | dlp = netdev_priv(master); |
1da177e4 LT |
637 | |
638 | ret = SDLA_RET_OK; | |
639 | len = sizeof(struct dlci_conf); | |
640 | if (netif_running(slave)) { | |
641 | if (get) | |
642 | ret = sdla_cmd(slave, SDLA_READ_DLCI_CONFIGURATION, abs(flp->dlci[i]), 0, | |
643 | NULL, 0, &dlp->config, &len); | |
644 | else | |
645 | ret = sdla_cmd(slave, SDLA_SET_DLCI_CONFIGURATION, abs(flp->dlci[i]), 0, | |
646 | &dlp->config, sizeof(struct dlci_conf) - 4 * sizeof(short), NULL, NULL); | |
647 | } | |
648 | ||
807540ba | 649 | return ret == SDLA_RET_OK ? 0 : -EIO; |
1da177e4 LT |
650 | } |
651 | ||
652 | /************************** | |
653 | * | |
654 | * now for the Linux driver | |
655 | * | |
656 | **************************/ | |
657 | ||
658 | /* NOTE: the DLCI driver deals with freeing the SKB!! */ | |
d71a6749 | 659 | static netdev_tx_t sdla_transmit(struct sk_buff *skb, |
38482428 | 660 | struct net_device *dev) |
1da177e4 LT |
661 | { |
662 | struct frad_local *flp; | |
663 | int ret, addr, accept, i; | |
664 | short size; | |
665 | unsigned long flags; | |
666 | struct buf_entry *pbuf; | |
667 | ||
8f15ea42 | 668 | flp = netdev_priv(dev); |
1da177e4 LT |
669 | ret = 0; |
670 | accept = 1; | |
671 | ||
672 | netif_stop_queue(dev); | |
673 | ||
674 | /* | |
675 | * stupid GateD insists on setting up the multicast router thru us | |
676 | * and we're ill equipped to handle a non Frame Relay packet at this | |
677 | * time! | |
678 | */ | |
679 | ||
680 | accept = 1; | |
681 | switch (dev->type) | |
682 | { | |
683 | case ARPHRD_FRAD: | |
684 | if (skb->dev->type != ARPHRD_DLCI) | |
685 | { | |
86fb0ccf JP |
686 | netdev_warn(dev, "Non DLCI device, type %i, tried to send on FRAD module\n", |
687 | skb->dev->type); | |
1da177e4 LT |
688 | accept = 0; |
689 | } | |
690 | break; | |
691 | default: | |
86fb0ccf JP |
692 | netdev_warn(dev, "unknown firmware type 0x%04X\n", |
693 | dev->type); | |
1da177e4 LT |
694 | accept = 0; |
695 | break; | |
696 | } | |
697 | if (accept) | |
698 | { | |
699 | /* this is frame specific, but till there's a PPP module, it's the default */ | |
700 | switch (flp->type) | |
701 | { | |
702 | case SDLA_S502A: | |
703 | case SDLA_S502E: | |
704 | ret = sdla_cmd(dev, SDLA_INFORMATION_WRITE, *(short *)(skb->dev->dev_addr), 0, skb->data, skb->len, NULL, NULL); | |
705 | break; | |
706 | case SDLA_S508: | |
707 | size = sizeof(addr); | |
708 | ret = sdla_cmd(dev, SDLA_INFORMATION_WRITE, *(short *)(skb->dev->dev_addr), 0, NULL, skb->len, &addr, &size); | |
709 | if (ret == SDLA_RET_OK) | |
710 | { | |
711 | ||
712 | spin_lock_irqsave(&sdla_lock, flags); | |
713 | SDLA_WINDOW(dev, addr); | |
714 | pbuf = (void *)(((int) dev->mem_start) + (addr & SDLA_ADDR_MASK)); | |
715 | __sdla_write(dev, pbuf->buf_addr, skb->data, skb->len); | |
716 | SDLA_WINDOW(dev, addr); | |
717 | pbuf->opp_flag = 1; | |
718 | spin_unlock_irqrestore(&sdla_lock, flags); | |
719 | } | |
720 | break; | |
721 | } | |
38482428 | 722 | |
1da177e4 LT |
723 | switch (ret) |
724 | { | |
725 | case SDLA_RET_OK: | |
ac99533f | 726 | dev->stats.tx_packets++; |
1da177e4 LT |
727 | break; |
728 | ||
729 | case SDLA_RET_CIR_OVERFLOW: | |
730 | case SDLA_RET_BUF_OVERSIZE: | |
731 | case SDLA_RET_NO_BUFS: | |
ac99533f | 732 | dev->stats.tx_dropped++; |
1da177e4 LT |
733 | break; |
734 | ||
735 | default: | |
ac99533f | 736 | dev->stats.tx_errors++; |
1da177e4 LT |
737 | break; |
738 | } | |
739 | } | |
740 | netif_wake_queue(dev); | |
741 | for(i=0;i<CONFIG_DLCI_MAX;i++) | |
742 | { | |
743 | if(flp->master[i]!=NULL) | |
744 | netif_wake_queue(flp->master[i]); | |
745 | } | |
38482428 SH |
746 | |
747 | dev_kfree_skb(skb); | |
d71a6749 | 748 | return NETDEV_TX_OK; |
1da177e4 LT |
749 | } |
750 | ||
751 | static void sdla_receive(struct net_device *dev) | |
752 | { | |
753 | struct net_device *master; | |
754 | struct frad_local *flp; | |
755 | struct dlci_local *dlp; | |
756 | struct sk_buff *skb; | |
757 | ||
758 | struct sdla_cmd *cmd; | |
759 | struct buf_info *pbufi; | |
760 | struct buf_entry *pbuf; | |
761 | ||
762 | unsigned long flags; | |
763 | int i=0, received, success, addr, buf_base, buf_top; | |
764 | short dlci, len, len2, split; | |
765 | ||
8f15ea42 | 766 | flp = netdev_priv(dev); |
1da177e4 LT |
767 | success = 1; |
768 | received = addr = buf_top = buf_base = 0; | |
769 | len = dlci = 0; | |
770 | skb = NULL; | |
771 | master = NULL; | |
772 | cmd = NULL; | |
773 | pbufi = NULL; | |
774 | pbuf = NULL; | |
775 | ||
776 | spin_lock_irqsave(&sdla_lock, flags); | |
777 | ||
778 | switch (flp->type) | |
779 | { | |
780 | case SDLA_S502A: | |
781 | case SDLA_S502E: | |
782 | cmd = (void *) (dev->mem_start + (SDLA_502_RCV_BUF & SDLA_ADDR_MASK)); | |
783 | SDLA_WINDOW(dev, SDLA_502_RCV_BUF); | |
784 | success = cmd->opp_flag; | |
785 | if (!success) | |
786 | break; | |
787 | ||
788 | dlci = cmd->dlci; | |
789 | len = cmd->length; | |
790 | break; | |
791 | ||
792 | case SDLA_S508: | |
793 | pbufi = (void *) (dev->mem_start + (SDLA_508_RXBUF_INFO & SDLA_ADDR_MASK)); | |
794 | SDLA_WINDOW(dev, SDLA_508_RXBUF_INFO); | |
795 | pbuf = (void *) (dev->mem_start + ((pbufi->rse_base + flp->buffer * sizeof(struct buf_entry)) & SDLA_ADDR_MASK)); | |
796 | success = pbuf->opp_flag; | |
797 | if (!success) | |
798 | break; | |
799 | ||
800 | buf_top = pbufi->buf_top; | |
801 | buf_base = pbufi->buf_base; | |
802 | dlci = pbuf->dlci; | |
803 | len = pbuf->length; | |
804 | addr = pbuf->buf_addr; | |
805 | break; | |
806 | } | |
807 | ||
808 | /* common code, find the DLCI and get the SKB */ | |
809 | if (success) | |
810 | { | |
811 | for (i=0;i<CONFIG_DLCI_MAX;i++) | |
812 | if (flp->dlci[i] == dlci) | |
813 | break; | |
814 | ||
815 | if (i == CONFIG_DLCI_MAX) | |
816 | { | |
86fb0ccf JP |
817 | netdev_notice(dev, "Received packet from invalid DLCI %i, ignoring\n", |
818 | dlci); | |
ac99533f | 819 | dev->stats.rx_errors++; |
1da177e4 LT |
820 | success = 0; |
821 | } | |
822 | } | |
823 | ||
824 | if (success) | |
825 | { | |
826 | master = flp->master[i]; | |
827 | skb = dev_alloc_skb(len + sizeof(struct frhdr)); | |
828 | if (skb == NULL) | |
829 | { | |
86fb0ccf | 830 | netdev_notice(dev, "Memory squeeze, dropping packet\n"); |
ac99533f | 831 | dev->stats.rx_dropped++; |
1da177e4 LT |
832 | success = 0; |
833 | } | |
834 | else | |
835 | skb_reserve(skb, sizeof(struct frhdr)); | |
836 | } | |
837 | ||
838 | /* pick up the data */ | |
839 | switch (flp->type) | |
840 | { | |
841 | case SDLA_S502A: | |
842 | case SDLA_S502E: | |
843 | if (success) | |
844 | __sdla_read(dev, SDLA_502_RCV_BUF + SDLA_502_DATA_OFS, skb_put(skb,len), len); | |
845 | ||
846 | SDLA_WINDOW(dev, SDLA_502_RCV_BUF); | |
847 | cmd->opp_flag = 0; | |
848 | break; | |
849 | ||
850 | case SDLA_S508: | |
851 | if (success) | |
852 | { | |
853 | /* is this buffer split off the end of the internal ring buffer */ | |
854 | split = addr + len > buf_top + 1 ? len - (buf_top - addr + 1) : 0; | |
855 | len2 = len - split; | |
856 | ||
857 | __sdla_read(dev, addr, skb_put(skb, len2), len2); | |
858 | if (split) | |
859 | __sdla_read(dev, buf_base, skb_put(skb, split), split); | |
860 | } | |
861 | ||
862 | /* increment the buffer we're looking at */ | |
863 | SDLA_WINDOW(dev, SDLA_508_RXBUF_INFO); | |
864 | flp->buffer = (flp->buffer + 1) % pbufi->rse_num; | |
865 | pbuf->opp_flag = 0; | |
866 | break; | |
867 | } | |
868 | ||
869 | if (success) | |
870 | { | |
ac99533f | 871 | dev->stats.rx_packets++; |
8f15ea42 | 872 | dlp = netdev_priv(master); |
1da177e4 LT |
873 | (*dlp->receive)(skb, master); |
874 | } | |
875 | ||
876 | spin_unlock_irqrestore(&sdla_lock, flags); | |
877 | } | |
878 | ||
28fc1f5a | 879 | static irqreturn_t sdla_isr(int dummy, void *dev_id) |
1da177e4 LT |
880 | { |
881 | struct net_device *dev; | |
882 | struct frad_local *flp; | |
883 | char byte; | |
884 | ||
885 | dev = dev_id; | |
886 | ||
c31f28e7 | 887 | flp = netdev_priv(dev); |
1da177e4 LT |
888 | |
889 | if (!flp->initialized) | |
890 | { | |
86fb0ccf | 891 | netdev_warn(dev, "irq %d for uninitialized device\n", dev->irq); |
1da177e4 LT |
892 | return IRQ_NONE; |
893 | } | |
894 | ||
895 | byte = sdla_byte(dev, flp->type == SDLA_S508 ? SDLA_508_IRQ_INTERFACE : SDLA_502_IRQ_INTERFACE); | |
896 | switch (byte) | |
897 | { | |
898 | case SDLA_INTR_RX: | |
899 | sdla_receive(dev); | |
900 | break; | |
901 | ||
902 | /* the command will get an error return, which is processed above */ | |
903 | case SDLA_INTR_MODEM: | |
904 | case SDLA_INTR_STATUS: | |
905 | sdla_cmd(dev, SDLA_READ_DLC_STATUS, 0, 0, NULL, 0, NULL, NULL); | |
906 | break; | |
907 | ||
908 | case SDLA_INTR_TX: | |
909 | case SDLA_INTR_COMPLETE: | |
910 | case SDLA_INTR_TIMER: | |
86fb0ccf | 911 | netdev_warn(dev, "invalid irq flag 0x%02X\n", byte); |
1da177e4 LT |
912 | break; |
913 | } | |
914 | ||
915 | /* the S502E requires a manual acknowledgement of the interrupt */ | |
916 | if (flp->type == SDLA_S502E) | |
917 | { | |
918 | flp->state &= ~SDLA_S502E_INTACK; | |
919 | outb(flp->state, dev->base_addr + SDLA_REG_CONTROL); | |
920 | flp->state |= SDLA_S502E_INTACK; | |
921 | outb(flp->state, dev->base_addr + SDLA_REG_CONTROL); | |
922 | } | |
923 | ||
924 | /* this clears the byte, informing the Z80 we're done */ | |
925 | byte = 0; | |
926 | sdla_write(dev, flp->type == SDLA_S508 ? SDLA_508_IRQ_INTERFACE : SDLA_502_IRQ_INTERFACE, &byte, sizeof(byte)); | |
927 | return IRQ_HANDLED; | |
928 | } | |
929 | ||
930 | static void sdla_poll(unsigned long device) | |
931 | { | |
932 | struct net_device *dev; | |
933 | struct frad_local *flp; | |
934 | ||
935 | dev = (struct net_device *) device; | |
8f15ea42 | 936 | flp = netdev_priv(dev); |
1da177e4 LT |
937 | |
938 | if (sdla_byte(dev, SDLA_502_RCV_BUF)) | |
939 | sdla_receive(dev); | |
940 | ||
941 | flp->timer.expires = 1; | |
942 | add_timer(&flp->timer); | |
943 | } | |
944 | ||
945 | static int sdla_close(struct net_device *dev) | |
946 | { | |
947 | struct frad_local *flp; | |
948 | struct intr_info intr; | |
949 | int len, i; | |
950 | short dlcis[CONFIG_DLCI_MAX]; | |
951 | ||
8f15ea42 | 952 | flp = netdev_priv(dev); |
1da177e4 LT |
953 | |
954 | len = 0; | |
955 | for(i=0;i<CONFIG_DLCI_MAX;i++) | |
956 | if (flp->dlci[i]) | |
957 | dlcis[len++] = abs(flp->dlci[i]); | |
958 | len *= 2; | |
959 | ||
960 | if (flp->config.station == FRAD_STATION_NODE) | |
961 | { | |
962 | for(i=0;i<CONFIG_DLCI_MAX;i++) | |
963 | if (flp->dlci[i] > 0) | |
964 | sdla_cmd(dev, SDLA_DEACTIVATE_DLCI, 0, 0, dlcis, len, NULL, NULL); | |
965 | sdla_cmd(dev, SDLA_DELETE_DLCI, 0, 0, &flp->dlci[i], sizeof(flp->dlci[i]), NULL, NULL); | |
966 | } | |
967 | ||
968 | memset(&intr, 0, sizeof(intr)); | |
969 | /* let's start up the reception */ | |
970 | switch(flp->type) | |
971 | { | |
972 | case SDLA_S502A: | |
973 | del_timer(&flp->timer); | |
974 | break; | |
975 | ||
976 | case SDLA_S502E: | |
977 | sdla_cmd(dev, SDLA_SET_IRQ_TRIGGER, 0, 0, &intr, sizeof(char) + sizeof(short), NULL, NULL); | |
978 | flp->state &= ~SDLA_S502E_INTACK; | |
979 | outb(flp->state, dev->base_addr + SDLA_REG_CONTROL); | |
980 | break; | |
981 | ||
982 | case SDLA_S507: | |
983 | break; | |
984 | ||
985 | case SDLA_S508: | |
986 | sdla_cmd(dev, SDLA_SET_IRQ_TRIGGER, 0, 0, &intr, sizeof(struct intr_info), NULL, NULL); | |
987 | flp->state &= ~SDLA_S508_INTEN; | |
988 | outb(flp->state, dev->base_addr + SDLA_REG_CONTROL); | |
989 | break; | |
990 | } | |
991 | ||
992 | sdla_cmd(dev, SDLA_DISABLE_COMMUNICATIONS, 0, 0, NULL, 0, NULL, NULL); | |
993 | ||
994 | netif_stop_queue(dev); | |
995 | ||
807540ba | 996 | return 0; |
1da177e4 LT |
997 | } |
998 | ||
999 | struct conf_data { | |
1000 | struct frad_conf config; | |
1001 | short dlci[CONFIG_DLCI_MAX]; | |
1002 | }; | |
1003 | ||
1004 | static int sdla_open(struct net_device *dev) | |
1005 | { | |
1006 | struct frad_local *flp; | |
1007 | struct dlci_local *dlp; | |
1008 | struct conf_data data; | |
1009 | struct intr_info intr; | |
1010 | int len, i; | |
1011 | char byte; | |
1012 | ||
8f15ea42 | 1013 | flp = netdev_priv(dev); |
1da177e4 LT |
1014 | |
1015 | if (!flp->initialized) | |
807540ba | 1016 | return -EPERM; |
1da177e4 LT |
1017 | |
1018 | if (!flp->configured) | |
807540ba | 1019 | return -EPERM; |
1da177e4 LT |
1020 | |
1021 | /* time to send in the configuration */ | |
1022 | len = 0; | |
1023 | for(i=0;i<CONFIG_DLCI_MAX;i++) | |
1024 | if (flp->dlci[i]) | |
1025 | data.dlci[len++] = abs(flp->dlci[i]); | |
1026 | len *= 2; | |
1027 | ||
1028 | memcpy(&data.config, &flp->config, sizeof(struct frad_conf)); | |
1029 | len += sizeof(struct frad_conf); | |
1030 | ||
1031 | sdla_cmd(dev, SDLA_DISABLE_COMMUNICATIONS, 0, 0, NULL, 0, NULL, NULL); | |
1032 | sdla_cmd(dev, SDLA_SET_DLCI_CONFIGURATION, 0, 0, &data, len, NULL, NULL); | |
1033 | ||
1034 | if (flp->type == SDLA_S508) | |
1035 | flp->buffer = 0; | |
1036 | ||
1037 | sdla_cmd(dev, SDLA_ENABLE_COMMUNICATIONS, 0, 0, NULL, 0, NULL, NULL); | |
1038 | ||
1039 | /* let's start up the reception */ | |
1040 | memset(&intr, 0, sizeof(intr)); | |
1041 | switch(flp->type) | |
1042 | { | |
1043 | case SDLA_S502A: | |
1044 | flp->timer.expires = 1; | |
1045 | add_timer(&flp->timer); | |
1046 | break; | |
1047 | ||
1048 | case SDLA_S502E: | |
1049 | flp->state |= SDLA_S502E_ENABLE; | |
1050 | outb(flp->state, dev->base_addr + SDLA_REG_CONTROL); | |
1051 | flp->state |= SDLA_S502E_INTACK; | |
1052 | outb(flp->state, dev->base_addr + SDLA_REG_CONTROL); | |
1053 | byte = 0; | |
1054 | sdla_write(dev, SDLA_502_IRQ_INTERFACE, &byte, sizeof(byte)); | |
1055 | intr.flags = SDLA_INTR_RX | SDLA_INTR_STATUS | SDLA_INTR_MODEM; | |
1056 | sdla_cmd(dev, SDLA_SET_IRQ_TRIGGER, 0, 0, &intr, sizeof(char) + sizeof(short), NULL, NULL); | |
1057 | break; | |
1058 | ||
1059 | case SDLA_S507: | |
1060 | break; | |
1061 | ||
1062 | case SDLA_S508: | |
1063 | flp->state |= SDLA_S508_INTEN; | |
1064 | outb(flp->state, dev->base_addr + SDLA_REG_CONTROL); | |
1065 | byte = 0; | |
1066 | sdla_write(dev, SDLA_508_IRQ_INTERFACE, &byte, sizeof(byte)); | |
1067 | intr.flags = SDLA_INTR_RX | SDLA_INTR_STATUS | SDLA_INTR_MODEM; | |
1068 | intr.irq = dev->irq; | |
1069 | sdla_cmd(dev, SDLA_SET_IRQ_TRIGGER, 0, 0, &intr, sizeof(struct intr_info), NULL, NULL); | |
1070 | break; | |
1071 | } | |
1072 | ||
1073 | if (flp->config.station == FRAD_STATION_CPE) | |
1074 | { | |
1075 | byte = SDLA_ICS_STATUS_ENQ; | |
1076 | sdla_cmd(dev, SDLA_ISSUE_IN_CHANNEL_SIGNAL, 0, 0, &byte, sizeof(byte), NULL, NULL); | |
1077 | } | |
1078 | else | |
1079 | { | |
1080 | sdla_cmd(dev, SDLA_ADD_DLCI, 0, 0, data.dlci, len - sizeof(struct frad_conf), NULL, NULL); | |
1081 | for(i=0;i<CONFIG_DLCI_MAX;i++) | |
1082 | if (flp->dlci[i] > 0) | |
1083 | sdla_cmd(dev, SDLA_ACTIVATE_DLCI, 0, 0, &flp->dlci[i], 2*sizeof(flp->dlci[i]), NULL, NULL); | |
1084 | } | |
1085 | ||
1086 | /* configure any specific DLCI settings */ | |
1087 | for(i=0;i<CONFIG_DLCI_MAX;i++) | |
1088 | if (flp->dlci[i]) | |
1089 | { | |
8f15ea42 | 1090 | dlp = netdev_priv(flp->master[i]); |
1da177e4 LT |
1091 | if (dlp->configured) |
1092 | sdla_cmd(dev, SDLA_SET_DLCI_CONFIGURATION, abs(flp->dlci[i]), 0, &dlp->config, sizeof(struct dlci_conf), NULL, NULL); | |
1093 | } | |
1094 | ||
1095 | netif_start_queue(dev); | |
1096 | ||
807540ba | 1097 | return 0; |
1da177e4 LT |
1098 | } |
1099 | ||
1100 | static int sdla_config(struct net_device *dev, struct frad_conf __user *conf, int get) | |
1101 | { | |
1102 | struct frad_local *flp; | |
1103 | struct conf_data data; | |
1104 | int i; | |
1105 | short size; | |
1106 | ||
1107 | if (dev->type == 0xFFFF) | |
807540ba | 1108 | return -EUNATCH; |
1da177e4 | 1109 | |
8f15ea42 | 1110 | flp = netdev_priv(dev); |
1da177e4 LT |
1111 | |
1112 | if (!get) | |
1113 | { | |
1114 | if (netif_running(dev)) | |
807540ba | 1115 | return -EBUSY; |
1da177e4 LT |
1116 | |
1117 | if(copy_from_user(&data.config, conf, sizeof(struct frad_conf))) | |
1118 | return -EFAULT; | |
1119 | ||
1120 | if (data.config.station & ~FRAD_STATION_NODE) | |
807540ba | 1121 | return -EINVAL; |
1da177e4 LT |
1122 | |
1123 | if (data.config.flags & ~FRAD_VALID_FLAGS) | |
807540ba | 1124 | return -EINVAL; |
1da177e4 LT |
1125 | |
1126 | if ((data.config.kbaud < 0) || | |
1127 | ((data.config.kbaud > 128) && (flp->type != SDLA_S508))) | |
807540ba | 1128 | return -EINVAL; |
1da177e4 LT |
1129 | |
1130 | if (data.config.clocking & ~(FRAD_CLOCK_INT | SDLA_S508_PORT_RS232)) | |
807540ba | 1131 | return -EINVAL; |
1da177e4 LT |
1132 | |
1133 | if ((data.config.mtu < 0) || (data.config.mtu > SDLA_MAX_MTU)) | |
807540ba | 1134 | return -EINVAL; |
1da177e4 LT |
1135 | |
1136 | if ((data.config.T391 < 5) || (data.config.T391 > 30)) | |
807540ba | 1137 | return -EINVAL; |
1da177e4 LT |
1138 | |
1139 | if ((data.config.T392 < 5) || (data.config.T392 > 30)) | |
807540ba | 1140 | return -EINVAL; |
1da177e4 LT |
1141 | |
1142 | if ((data.config.N391 < 1) || (data.config.N391 > 255)) | |
807540ba | 1143 | return -EINVAL; |
1da177e4 LT |
1144 | |
1145 | if ((data.config.N392 < 1) || (data.config.N392 > 10)) | |
807540ba | 1146 | return -EINVAL; |
1da177e4 LT |
1147 | |
1148 | if ((data.config.N393 < 1) || (data.config.N393 > 10)) | |
807540ba | 1149 | return -EINVAL; |
1da177e4 LT |
1150 | |
1151 | memcpy(&flp->config, &data.config, sizeof(struct frad_conf)); | |
1152 | flp->config.flags |= SDLA_DIRECT_RECV; | |
1153 | ||
1154 | if (flp->type == SDLA_S508) | |
1155 | flp->config.flags |= SDLA_TX70_RX30; | |
1156 | ||
1157 | if (dev->mtu != flp->config.mtu) | |
1158 | { | |
1159 | /* this is required to change the MTU */ | |
1160 | dev->mtu = flp->config.mtu; | |
1161 | for(i=0;i<CONFIG_DLCI_MAX;i++) | |
1162 | if (flp->master[i]) | |
1163 | flp->master[i]->mtu = flp->config.mtu; | |
1164 | } | |
1165 | ||
1166 | flp->config.mtu += sizeof(struct frhdr); | |
1167 | ||
1168 | /* off to the races! */ | |
1169 | if (!flp->configured) | |
1170 | sdla_start(dev); | |
1171 | ||
1172 | flp->configured = 1; | |
1173 | } | |
1174 | else | |
1175 | { | |
1176 | /* no sense reading if the CPU isn't started */ | |
1177 | if (netif_running(dev)) | |
1178 | { | |
1179 | size = sizeof(data); | |
1180 | if (sdla_cmd(dev, SDLA_READ_DLCI_CONFIGURATION, 0, 0, NULL, 0, &data, &size) != SDLA_RET_OK) | |
807540ba | 1181 | return -EIO; |
1da177e4 LT |
1182 | } |
1183 | else | |
1184 | if (flp->configured) | |
1185 | memcpy(&data.config, &flp->config, sizeof(struct frad_conf)); | |
1186 | else | |
1187 | memset(&data.config, 0, sizeof(struct frad_conf)); | |
1188 | ||
1189 | memcpy(&flp->config, &data.config, sizeof(struct frad_conf)); | |
1190 | data.config.flags &= FRAD_VALID_FLAGS; | |
1191 | data.config.mtu -= data.config.mtu > sizeof(struct frhdr) ? sizeof(struct frhdr) : data.config.mtu; | |
1192 | return copy_to_user(conf, &data.config, sizeof(struct frad_conf))?-EFAULT:0; | |
1193 | } | |
1194 | ||
807540ba | 1195 | return 0; |
1da177e4 LT |
1196 | } |
1197 | ||
1198 | static int sdla_xfer(struct net_device *dev, struct sdla_mem __user *info, int read) | |
1199 | { | |
1200 | struct sdla_mem mem; | |
1201 | char *temp; | |
1202 | ||
1203 | if(copy_from_user(&mem, info, sizeof(mem))) | |
1204 | return -EFAULT; | |
1205 | ||
1206 | if (read) | |
1207 | { | |
dd00cc48 | 1208 | temp = kzalloc(mem.len, GFP_KERNEL); |
1da177e4 | 1209 | if (!temp) |
807540ba | 1210 | return -ENOMEM; |
1da177e4 LT |
1211 | sdla_read(dev, mem.addr, temp, mem.len); |
1212 | if(copy_to_user(mem.data, temp, mem.len)) | |
1213 | { | |
1214 | kfree(temp); | |
1215 | return -EFAULT; | |
1216 | } | |
1217 | kfree(temp); | |
1218 | } | |
1219 | else | |
1220 | { | |
c146fc9f JL |
1221 | temp = memdup_user(mem.data, mem.len); |
1222 | if (IS_ERR(temp)) | |
1223 | return PTR_ERR(temp); | |
1da177e4 LT |
1224 | sdla_write(dev, mem.addr, temp, mem.len); |
1225 | kfree(temp); | |
1226 | } | |
807540ba | 1227 | return 0; |
1da177e4 LT |
1228 | } |
1229 | ||
1230 | static int sdla_reconfig(struct net_device *dev) | |
1231 | { | |
1232 | struct frad_local *flp; | |
1233 | struct conf_data data; | |
1234 | int i, len; | |
1235 | ||
8f15ea42 | 1236 | flp = netdev_priv(dev); |
1da177e4 LT |
1237 | |
1238 | len = 0; | |
1239 | for(i=0;i<CONFIG_DLCI_MAX;i++) | |
1240 | if (flp->dlci[i]) | |
1241 | data.dlci[len++] = flp->dlci[i]; | |
1242 | len *= 2; | |
1243 | ||
1244 | memcpy(&data, &flp->config, sizeof(struct frad_conf)); | |
1245 | len += sizeof(struct frad_conf); | |
1246 | ||
1247 | sdla_cmd(dev, SDLA_DISABLE_COMMUNICATIONS, 0, 0, NULL, 0, NULL, NULL); | |
1248 | sdla_cmd(dev, SDLA_SET_DLCI_CONFIGURATION, 0, 0, &data, len, NULL, NULL); | |
1249 | sdla_cmd(dev, SDLA_ENABLE_COMMUNICATIONS, 0, 0, NULL, 0, NULL, NULL); | |
1250 | ||
807540ba | 1251 | return 0; |
1da177e4 LT |
1252 | } |
1253 | ||
1254 | static int sdla_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) | |
1255 | { | |
1256 | struct frad_local *flp; | |
1257 | ||
1258 | if(!capable(CAP_NET_ADMIN)) | |
1259 | return -EPERM; | |
1260 | ||
8f15ea42 | 1261 | flp = netdev_priv(dev); |
1da177e4 LT |
1262 | |
1263 | if (!flp->initialized) | |
807540ba | 1264 | return -EINVAL; |
1da177e4 LT |
1265 | |
1266 | switch (cmd) | |
1267 | { | |
1268 | case FRAD_GET_CONF: | |
1269 | case FRAD_SET_CONF: | |
807540ba | 1270 | return sdla_config(dev, ifr->ifr_data, cmd == FRAD_GET_CONF); |
1da177e4 LT |
1271 | |
1272 | case SDLA_IDENTIFY: | |
1273 | ifr->ifr_flags = flp->type; | |
1274 | break; | |
1275 | ||
1276 | case SDLA_CPUSPEED: | |
807540ba | 1277 | return sdla_cpuspeed(dev, ifr); |
1da177e4 LT |
1278 | |
1279 | /* ========================================================== | |
1280 | NOTE: This is rather a useless action right now, as the | |
1281 | current driver does not support protocols other than | |
1282 | FR. However, Sangoma has modules for a number of | |
1283 | other protocols in the works. | |
1284 | ============================================================*/ | |
1285 | case SDLA_PROTOCOL: | |
1286 | if (flp->configured) | |
807540ba | 1287 | return -EALREADY; |
1da177e4 LT |
1288 | |
1289 | switch (ifr->ifr_flags) | |
1290 | { | |
1291 | case ARPHRD_FRAD: | |
1292 | dev->type = ifr->ifr_flags; | |
1293 | break; | |
1294 | default: | |
807540ba | 1295 | return -ENOPROTOOPT; |
1da177e4 LT |
1296 | } |
1297 | break; | |
1298 | ||
1299 | case SDLA_CLEARMEM: | |
1300 | sdla_clear(dev); | |
1301 | break; | |
1302 | ||
1303 | case SDLA_WRITEMEM: | |
1304 | case SDLA_READMEM: | |
1305 | if(!capable(CAP_SYS_RAWIO)) | |
1306 | return -EPERM; | |
807540ba | 1307 | return sdla_xfer(dev, ifr->ifr_data, cmd == SDLA_READMEM); |
1da177e4 LT |
1308 | |
1309 | case SDLA_START: | |
1310 | sdla_start(dev); | |
1311 | break; | |
1312 | ||
1313 | case SDLA_STOP: | |
1314 | sdla_stop(dev); | |
1315 | break; | |
1316 | ||
1317 | default: | |
807540ba | 1318 | return -EOPNOTSUPP; |
1da177e4 | 1319 | } |
807540ba | 1320 | return 0; |
1da177e4 LT |
1321 | } |
1322 | ||
7665a089 | 1323 | static int sdla_change_mtu(struct net_device *dev, int new_mtu) |
1da177e4 | 1324 | { |
1da177e4 | 1325 | if (netif_running(dev)) |
807540ba | 1326 | return -EBUSY; |
1da177e4 LT |
1327 | |
1328 | /* for now, you can't change the MTU! */ | |
807540ba | 1329 | return -EOPNOTSUPP; |
1da177e4 LT |
1330 | } |
1331 | ||
7665a089 | 1332 | static int sdla_set_config(struct net_device *dev, struct ifmap *map) |
1da177e4 LT |
1333 | { |
1334 | struct frad_local *flp; | |
1335 | int i; | |
1336 | char byte; | |
1337 | unsigned base; | |
1338 | int err = -EINVAL; | |
1339 | ||
8f15ea42 | 1340 | flp = netdev_priv(dev); |
1da177e4 LT |
1341 | |
1342 | if (flp->initialized) | |
807540ba | 1343 | return -EINVAL; |
1da177e4 | 1344 | |
e9edda69 | 1345 | for(i=0; i < ARRAY_SIZE(valid_port); i++) |
1da177e4 LT |
1346 | if (valid_port[i] == map->base_addr) |
1347 | break; | |
1348 | ||
e9edda69 | 1349 | if (i == ARRAY_SIZE(valid_port)) |
807540ba | 1350 | return -EINVAL; |
1da177e4 LT |
1351 | |
1352 | if (!request_region(map->base_addr, SDLA_IO_EXTENTS, dev->name)){ | |
86fb0ccf | 1353 | pr_warn("io-port 0x%04lx in use\n", dev->base_addr); |
807540ba | 1354 | return -EINVAL; |
1da177e4 LT |
1355 | } |
1356 | base = map->base_addr; | |
1357 | ||
1358 | /* test for card types, S502A, S502E, S507, S508 */ | |
1359 | /* these tests shut down the card completely, so clear the state */ | |
1360 | flp->type = SDLA_UNKNOWN; | |
1361 | flp->state = 0; | |
1362 | ||
1363 | for(i=1;i<SDLA_IO_EXTENTS;i++) | |
1364 | if (inb(base + i) != 0xFF) | |
1365 | break; | |
1366 | ||
1367 | if (i == SDLA_IO_EXTENTS) { | |
1368 | outb(SDLA_HALT, base + SDLA_REG_Z80_CONTROL); | |
1369 | if ((inb(base + SDLA_S502_STS) & 0x0F) == 0x08) { | |
1370 | outb(SDLA_S502E_INTACK, base + SDLA_REG_CONTROL); | |
1371 | if ((inb(base + SDLA_S502_STS) & 0x0F) == 0x0C) { | |
1372 | outb(SDLA_HALT, base + SDLA_REG_CONTROL); | |
1373 | flp->type = SDLA_S502E; | |
1374 | goto got_type; | |
1375 | } | |
1376 | } | |
1377 | } | |
1378 | ||
1379 | for(byte=inb(base),i=0;i<SDLA_IO_EXTENTS;i++) | |
1380 | if (inb(base + i) != byte) | |
1381 | break; | |
1382 | ||
1383 | if (i == SDLA_IO_EXTENTS) { | |
1384 | outb(SDLA_HALT, base + SDLA_REG_CONTROL); | |
1385 | if ((inb(base + SDLA_S502_STS) & 0x7E) == 0x30) { | |
1386 | outb(SDLA_S507_ENABLE, base + SDLA_REG_CONTROL); | |
1387 | if ((inb(base + SDLA_S502_STS) & 0x7E) == 0x32) { | |
1388 | outb(SDLA_HALT, base + SDLA_REG_CONTROL); | |
1389 | flp->type = SDLA_S507; | |
1390 | goto got_type; | |
1391 | } | |
1392 | } | |
1393 | } | |
1394 | ||
1395 | outb(SDLA_HALT, base + SDLA_REG_CONTROL); | |
1396 | if ((inb(base + SDLA_S508_STS) & 0x3F) == 0x00) { | |
1397 | outb(SDLA_S508_INTEN, base + SDLA_REG_CONTROL); | |
1398 | if ((inb(base + SDLA_S508_STS) & 0x3F) == 0x10) { | |
1399 | outb(SDLA_HALT, base + SDLA_REG_CONTROL); | |
1400 | flp->type = SDLA_S508; | |
1401 | goto got_type; | |
1402 | } | |
1403 | } | |
1404 | ||
1405 | outb(SDLA_S502A_HALT, base + SDLA_REG_CONTROL); | |
1406 | if (inb(base + SDLA_S502_STS) == 0x40) { | |
1407 | outb(SDLA_S502A_START, base + SDLA_REG_CONTROL); | |
1408 | if (inb(base + SDLA_S502_STS) == 0x40) { | |
1409 | outb(SDLA_S502A_INTEN, base + SDLA_REG_CONTROL); | |
1410 | if (inb(base + SDLA_S502_STS) == 0x44) { | |
1411 | outb(SDLA_S502A_START, base + SDLA_REG_CONTROL); | |
1412 | flp->type = SDLA_S502A; | |
1413 | goto got_type; | |
1414 | } | |
1415 | } | |
1416 | } | |
1417 | ||
86fb0ccf | 1418 | netdev_notice(dev, "Unknown card type\n"); |
1da177e4 LT |
1419 | err = -ENODEV; |
1420 | goto fail; | |
1421 | ||
1422 | got_type: | |
1423 | switch(base) { | |
1424 | case 0x270: | |
1425 | case 0x280: | |
1426 | case 0x380: | |
1427 | case 0x390: | |
1428 | if (flp->type != SDLA_S508 && flp->type != SDLA_S507) | |
1429 | goto fail; | |
1430 | } | |
1431 | ||
1432 | switch (map->irq) { | |
1433 | case 2: | |
1434 | if (flp->type != SDLA_S502E) | |
1435 | goto fail; | |
1436 | break; | |
1437 | ||
1438 | case 10: | |
1439 | case 11: | |
1440 | case 12: | |
1441 | case 15: | |
1442 | case 4: | |
1443 | if (flp->type != SDLA_S508 && flp->type != SDLA_S507) | |
1444 | goto fail; | |
1445 | break; | |
1446 | case 3: | |
1447 | case 5: | |
1448 | case 7: | |
1449 | if (flp->type == SDLA_S502A) | |
1450 | goto fail; | |
1451 | break; | |
1452 | ||
1453 | default: | |
1454 | goto fail; | |
1455 | } | |
1456 | ||
1457 | err = -EAGAIN; | |
a0607fd3 | 1458 | if (request_irq(dev->irq, sdla_isr, 0, dev->name, dev)) |
1da177e4 LT |
1459 | goto fail; |
1460 | ||
1461 | if (flp->type == SDLA_S507) { | |
1462 | switch(dev->irq) { | |
1463 | case 3: | |
1464 | flp->state = SDLA_S507_IRQ3; | |
1465 | break; | |
1466 | case 4: | |
1467 | flp->state = SDLA_S507_IRQ4; | |
1468 | break; | |
1469 | case 5: | |
1470 | flp->state = SDLA_S507_IRQ5; | |
1471 | break; | |
1472 | case 7: | |
1473 | flp->state = SDLA_S507_IRQ7; | |
1474 | break; | |
1475 | case 10: | |
1476 | flp->state = SDLA_S507_IRQ10; | |
1477 | break; | |
1478 | case 11: | |
1479 | flp->state = SDLA_S507_IRQ11; | |
1480 | break; | |
1481 | case 12: | |
1482 | flp->state = SDLA_S507_IRQ12; | |
1483 | break; | |
1484 | case 15: | |
1485 | flp->state = SDLA_S507_IRQ15; | |
1486 | break; | |
1487 | } | |
1488 | } | |
1489 | ||
e9edda69 | 1490 | for(i=0; i < ARRAY_SIZE(valid_mem); i++) |
1da177e4 LT |
1491 | if (valid_mem[i] == map->mem_start) |
1492 | break; | |
1493 | ||
1494 | err = -EINVAL; | |
e9edda69 | 1495 | if (i == ARRAY_SIZE(valid_mem)) |
1da177e4 LT |
1496 | goto fail2; |
1497 | ||
1498 | if (flp->type == SDLA_S502A && (map->mem_start & 0xF000) >> 12 == 0x0E) | |
1499 | goto fail2; | |
1500 | ||
1501 | if (flp->type != SDLA_S507 && map->mem_start >> 16 == 0x0B) | |
1502 | goto fail2; | |
1503 | ||
1504 | if (flp->type == SDLA_S507 && map->mem_start >> 16 == 0x0D) | |
1505 | goto fail2; | |
1506 | ||
1507 | byte = flp->type != SDLA_S508 ? SDLA_8K_WINDOW : 0; | |
1508 | byte |= (map->mem_start & 0xF000) >> (12 + (flp->type == SDLA_S508 ? 1 : 0)); | |
1509 | switch(flp->type) { | |
1510 | case SDLA_S502A: | |
1511 | case SDLA_S502E: | |
1512 | switch (map->mem_start >> 16) { | |
1513 | case 0x0A: | |
1514 | byte |= SDLA_S502_SEG_A; | |
1515 | break; | |
1516 | case 0x0C: | |
1517 | byte |= SDLA_S502_SEG_C; | |
1518 | break; | |
1519 | case 0x0D: | |
1520 | byte |= SDLA_S502_SEG_D; | |
1521 | break; | |
1522 | case 0x0E: | |
1523 | byte |= SDLA_S502_SEG_E; | |
1524 | break; | |
1525 | } | |
1526 | break; | |
1527 | case SDLA_S507: | |
1528 | switch (map->mem_start >> 16) { | |
1529 | case 0x0A: | |
1530 | byte |= SDLA_S507_SEG_A; | |
1531 | break; | |
1532 | case 0x0B: | |
1533 | byte |= SDLA_S507_SEG_B; | |
1534 | break; | |
1535 | case 0x0C: | |
1536 | byte |= SDLA_S507_SEG_C; | |
1537 | break; | |
1538 | case 0x0E: | |
1539 | byte |= SDLA_S507_SEG_E; | |
1540 | break; | |
1541 | } | |
1542 | break; | |
1543 | case SDLA_S508: | |
1544 | switch (map->mem_start >> 16) { | |
1545 | case 0x0A: | |
1546 | byte |= SDLA_S508_SEG_A; | |
1547 | break; | |
1548 | case 0x0C: | |
1549 | byte |= SDLA_S508_SEG_C; | |
1550 | break; | |
1551 | case 0x0D: | |
1552 | byte |= SDLA_S508_SEG_D; | |
1553 | break; | |
1554 | case 0x0E: | |
1555 | byte |= SDLA_S508_SEG_E; | |
1556 | break; | |
1557 | } | |
1558 | break; | |
1559 | } | |
1560 | ||
1561 | /* set the memory bits, and enable access */ | |
1562 | outb(byte, base + SDLA_REG_PC_WINDOW); | |
1563 | ||
1564 | switch(flp->type) | |
1565 | { | |
1566 | case SDLA_S502E: | |
1567 | flp->state = SDLA_S502E_ENABLE; | |
1568 | break; | |
1569 | case SDLA_S507: | |
1570 | flp->state |= SDLA_MEMEN; | |
1571 | break; | |
1572 | case SDLA_S508: | |
1573 | flp->state = SDLA_MEMEN; | |
1574 | break; | |
1575 | } | |
1576 | outb(flp->state, base + SDLA_REG_CONTROL); | |
1577 | ||
1578 | dev->irq = map->irq; | |
1579 | dev->base_addr = base; | |
1580 | dev->mem_start = map->mem_start; | |
1581 | dev->mem_end = dev->mem_start + 0x2000; | |
1582 | flp->initialized = 1; | |
1583 | return 0; | |
1584 | ||
1585 | fail2: | |
1586 | free_irq(map->irq, dev); | |
1587 | fail: | |
1588 | release_region(base, SDLA_IO_EXTENTS); | |
1589 | return err; | |
1590 | } | |
1591 | ||
ac99533f SH |
1592 | static const struct net_device_ops sdla_netdev_ops = { |
1593 | .ndo_open = sdla_open, | |
1594 | .ndo_stop = sdla_close, | |
1595 | .ndo_do_ioctl = sdla_ioctl, | |
1596 | .ndo_set_config = sdla_set_config, | |
1597 | .ndo_start_xmit = sdla_transmit, | |
1598 | .ndo_change_mtu = sdla_change_mtu, | |
1599 | }; | |
1da177e4 LT |
1600 | |
1601 | static void setup_sdla(struct net_device *dev) | |
1602 | { | |
8f15ea42 | 1603 | struct frad_local *flp = netdev_priv(dev); |
1da177e4 LT |
1604 | |
1605 | netdev_boot_setup_check(dev); | |
1606 | ||
ac99533f | 1607 | dev->netdev_ops = &sdla_netdev_ops; |
1da177e4 LT |
1608 | dev->flags = 0; |
1609 | dev->type = 0xFFFF; | |
1610 | dev->hard_header_len = 0; | |
1611 | dev->addr_len = 0; | |
1612 | dev->mtu = SDLA_MAX_MTU; | |
1613 | ||
1da177e4 LT |
1614 | flp->activate = sdla_activate; |
1615 | flp->deactivate = sdla_deactivate; | |
1616 | flp->assoc = sdla_assoc; | |
1617 | flp->deassoc = sdla_deassoc; | |
1618 | flp->dlci_conf = sdla_dlci_conf; | |
1619 | ||
1620 | init_timer(&flp->timer); | |
1621 | flp->timer.expires = 1; | |
1622 | flp->timer.data = (unsigned long) dev; | |
1623 | flp->timer.function = sdla_poll; | |
1624 | } | |
1625 | ||
1626 | static struct net_device *sdla; | |
1627 | ||
1628 | static int __init init_sdla(void) | |
1629 | { | |
1630 | int err; | |
1631 | ||
1632 | printk("%s.\n", version); | |
1633 | ||
c835a677 TG |
1634 | sdla = alloc_netdev(sizeof(struct frad_local), "sdla0", |
1635 | NET_NAME_UNKNOWN, setup_sdla); | |
1da177e4 LT |
1636 | if (!sdla) |
1637 | return -ENOMEM; | |
1638 | ||
1639 | err = register_netdev(sdla); | |
1640 | if (err) | |
1641 | free_netdev(sdla); | |
1642 | ||
1643 | return err; | |
1644 | } | |
1645 | ||
1646 | static void __exit exit_sdla(void) | |
1647 | { | |
8f15ea42 | 1648 | struct frad_local *flp = netdev_priv(sdla); |
1da177e4 LT |
1649 | |
1650 | unregister_netdev(sdla); | |
1651 | if (flp->initialized) { | |
1652 | free_irq(sdla->irq, sdla); | |
1653 | release_region(sdla->base_addr, SDLA_IO_EXTENTS); | |
1654 | } | |
1655 | del_timer_sync(&flp->timer); | |
1656 | free_netdev(sdla); | |
1657 | } | |
1658 | ||
1659 | MODULE_LICENSE("GPL"); | |
1660 | ||
1661 | module_init(init_sdla); | |
1662 | module_exit(exit_sdla); |