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90563ec4 DW |
1 | /* |
2 | * dcdbas.c: Dell Systems Management Base Driver | |
3 | * | |
4 | * The Dell Systems Management Base Driver provides a sysfs interface for | |
5 | * systems management software to perform System Management Interrupts (SMIs) | |
6 | * and Host Control Actions (power cycle or power off after OS shutdown) on | |
7 | * Dell systems. | |
8 | * | |
9 | * See Documentation/dcdbas.txt for more information. | |
10 | * | |
11 | * Copyright (C) 1995-2005 Dell Inc. | |
12 | * | |
13 | * This program is free software; you can redistribute it and/or modify | |
14 | * it under the terms of the GNU General Public License v2.0 as published by | |
15 | * the Free Software Foundation. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, | |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU General Public License for more details. | |
21 | */ | |
22 | ||
d052d1be | 23 | #include <linux/platform_device.h> |
90563ec4 DW |
24 | #include <linux/dma-mapping.h> |
25 | #include <linux/errno.h> | |
26 | #include <linux/init.h> | |
27 | #include <linux/kernel.h> | |
28 | #include <linux/mc146818rtc.h> | |
29 | #include <linux/module.h> | |
30 | #include <linux/reboot.h> | |
31 | #include <linux/sched.h> | |
32 | #include <linux/smp.h> | |
33 | #include <linux/spinlock.h> | |
34 | #include <linux/string.h> | |
35 | #include <linux/types.h> | |
36 | #include <asm/io.h> | |
37 | #include <asm/semaphore.h> | |
38 | ||
39 | #include "dcdbas.h" | |
40 | ||
41 | #define DRIVER_NAME "dcdbas" | |
435a80f6 | 42 | #define DRIVER_VERSION "5.6.0-2" |
90563ec4 DW |
43 | #define DRIVER_DESCRIPTION "Dell Systems Management Base Driver" |
44 | ||
45 | static struct platform_device *dcdbas_pdev; | |
46 | ||
47 | static u8 *smi_data_buf; | |
48 | static dma_addr_t smi_data_buf_handle; | |
49 | static unsigned long smi_data_buf_size; | |
50 | static u32 smi_data_buf_phys_addr; | |
51 | static DECLARE_MUTEX(smi_data_lock); | |
52 | ||
53 | static unsigned int host_control_action; | |
54 | static unsigned int host_control_smi_type; | |
55 | static unsigned int host_control_on_shutdown; | |
56 | ||
57 | /** | |
58 | * smi_data_buf_free: free SMI data buffer | |
59 | */ | |
60 | static void smi_data_buf_free(void) | |
61 | { | |
62 | if (!smi_data_buf) | |
63 | return; | |
64 | ||
65 | dev_dbg(&dcdbas_pdev->dev, "%s: phys: %x size: %lu\n", | |
66 | __FUNCTION__, smi_data_buf_phys_addr, smi_data_buf_size); | |
67 | ||
68 | dma_free_coherent(&dcdbas_pdev->dev, smi_data_buf_size, smi_data_buf, | |
69 | smi_data_buf_handle); | |
70 | smi_data_buf = NULL; | |
71 | smi_data_buf_handle = 0; | |
72 | smi_data_buf_phys_addr = 0; | |
73 | smi_data_buf_size = 0; | |
74 | } | |
75 | ||
76 | /** | |
77 | * smi_data_buf_realloc: grow SMI data buffer if needed | |
78 | */ | |
79 | static int smi_data_buf_realloc(unsigned long size) | |
80 | { | |
81 | void *buf; | |
82 | dma_addr_t handle; | |
83 | ||
84 | if (smi_data_buf_size >= size) | |
85 | return 0; | |
86 | ||
87 | if (size > MAX_SMI_DATA_BUF_SIZE) | |
88 | return -EINVAL; | |
89 | ||
90 | /* new buffer is needed */ | |
91 | buf = dma_alloc_coherent(&dcdbas_pdev->dev, size, &handle, GFP_KERNEL); | |
92 | if (!buf) { | |
93 | dev_dbg(&dcdbas_pdev->dev, | |
94 | "%s: failed to allocate memory size %lu\n", | |
95 | __FUNCTION__, size); | |
96 | return -ENOMEM; | |
97 | } | |
98 | /* memory zeroed by dma_alloc_coherent */ | |
99 | ||
100 | if (smi_data_buf) | |
101 | memcpy(buf, smi_data_buf, smi_data_buf_size); | |
102 | ||
103 | /* free any existing buffer */ | |
104 | smi_data_buf_free(); | |
105 | ||
106 | /* set up new buffer for use */ | |
107 | smi_data_buf = buf; | |
108 | smi_data_buf_handle = handle; | |
109 | smi_data_buf_phys_addr = (u32) virt_to_phys(buf); | |
110 | smi_data_buf_size = size; | |
111 | ||
112 | dev_dbg(&dcdbas_pdev->dev, "%s: phys: %x size: %lu\n", | |
113 | __FUNCTION__, smi_data_buf_phys_addr, smi_data_buf_size); | |
114 | ||
115 | return 0; | |
116 | } | |
117 | ||
118 | static ssize_t smi_data_buf_phys_addr_show(struct device *dev, | |
119 | struct device_attribute *attr, | |
120 | char *buf) | |
121 | { | |
122 | return sprintf(buf, "%x\n", smi_data_buf_phys_addr); | |
123 | } | |
124 | ||
125 | static ssize_t smi_data_buf_size_show(struct device *dev, | |
126 | struct device_attribute *attr, | |
127 | char *buf) | |
128 | { | |
129 | return sprintf(buf, "%lu\n", smi_data_buf_size); | |
130 | } | |
131 | ||
132 | static ssize_t smi_data_buf_size_store(struct device *dev, | |
133 | struct device_attribute *attr, | |
134 | const char *buf, size_t count) | |
135 | { | |
136 | unsigned long buf_size; | |
137 | ssize_t ret; | |
138 | ||
139 | buf_size = simple_strtoul(buf, NULL, 10); | |
140 | ||
141 | /* make sure SMI data buffer is at least buf_size */ | |
142 | down(&smi_data_lock); | |
143 | ret = smi_data_buf_realloc(buf_size); | |
144 | up(&smi_data_lock); | |
145 | if (ret) | |
146 | return ret; | |
147 | ||
148 | return count; | |
149 | } | |
150 | ||
151 | static ssize_t smi_data_read(struct kobject *kobj, char *buf, loff_t pos, | |
152 | size_t count) | |
153 | { | |
154 | size_t max_read; | |
155 | ssize_t ret; | |
156 | ||
157 | down(&smi_data_lock); | |
158 | ||
159 | if (pos >= smi_data_buf_size) { | |
160 | ret = 0; | |
161 | goto out; | |
162 | } | |
163 | ||
164 | max_read = smi_data_buf_size - pos; | |
165 | ret = min(max_read, count); | |
166 | memcpy(buf, smi_data_buf + pos, ret); | |
167 | out: | |
168 | up(&smi_data_lock); | |
169 | return ret; | |
170 | } | |
171 | ||
172 | static ssize_t smi_data_write(struct kobject *kobj, char *buf, loff_t pos, | |
173 | size_t count) | |
174 | { | |
175 | ssize_t ret; | |
176 | ||
177 | down(&smi_data_lock); | |
178 | ||
179 | ret = smi_data_buf_realloc(pos + count); | |
180 | if (ret) | |
181 | goto out; | |
182 | ||
183 | memcpy(smi_data_buf + pos, buf, count); | |
184 | ret = count; | |
185 | out: | |
186 | up(&smi_data_lock); | |
187 | return ret; | |
188 | } | |
189 | ||
190 | static ssize_t host_control_action_show(struct device *dev, | |
191 | struct device_attribute *attr, | |
192 | char *buf) | |
193 | { | |
194 | return sprintf(buf, "%u\n", host_control_action); | |
195 | } | |
196 | ||
197 | static ssize_t host_control_action_store(struct device *dev, | |
198 | struct device_attribute *attr, | |
199 | const char *buf, size_t count) | |
200 | { | |
201 | ssize_t ret; | |
202 | ||
203 | /* make sure buffer is available for host control command */ | |
204 | down(&smi_data_lock); | |
205 | ret = smi_data_buf_realloc(sizeof(struct apm_cmd)); | |
206 | up(&smi_data_lock); | |
207 | if (ret) | |
208 | return ret; | |
209 | ||
210 | host_control_action = simple_strtoul(buf, NULL, 10); | |
211 | return count; | |
212 | } | |
213 | ||
214 | static ssize_t host_control_smi_type_show(struct device *dev, | |
215 | struct device_attribute *attr, | |
216 | char *buf) | |
217 | { | |
218 | return sprintf(buf, "%u\n", host_control_smi_type); | |
219 | } | |
220 | ||
221 | static ssize_t host_control_smi_type_store(struct device *dev, | |
222 | struct device_attribute *attr, | |
223 | const char *buf, size_t count) | |
224 | { | |
225 | host_control_smi_type = simple_strtoul(buf, NULL, 10); | |
226 | return count; | |
227 | } | |
228 | ||
229 | static ssize_t host_control_on_shutdown_show(struct device *dev, | |
230 | struct device_attribute *attr, | |
231 | char *buf) | |
232 | { | |
233 | return sprintf(buf, "%u\n", host_control_on_shutdown); | |
234 | } | |
235 | ||
236 | static ssize_t host_control_on_shutdown_store(struct device *dev, | |
237 | struct device_attribute *attr, | |
238 | const char *buf, size_t count) | |
239 | { | |
240 | host_control_on_shutdown = simple_strtoul(buf, NULL, 10); | |
241 | return count; | |
242 | } | |
243 | ||
244 | /** | |
245 | * smi_request: generate SMI request | |
246 | * | |
247 | * Called with smi_data_lock. | |
248 | */ | |
249 | static int smi_request(struct smi_cmd *smi_cmd) | |
250 | { | |
251 | cpumask_t old_mask; | |
252 | int ret = 0; | |
253 | ||
254 | if (smi_cmd->magic != SMI_CMD_MAGIC) { | |
255 | dev_info(&dcdbas_pdev->dev, "%s: invalid magic value\n", | |
256 | __FUNCTION__); | |
257 | return -EBADR; | |
258 | } | |
259 | ||
260 | /* SMI requires CPU 0 */ | |
261 | old_mask = current->cpus_allowed; | |
262 | set_cpus_allowed(current, cpumask_of_cpu(0)); | |
263 | if (smp_processor_id() != 0) { | |
264 | dev_dbg(&dcdbas_pdev->dev, "%s: failed to get CPU 0\n", | |
265 | __FUNCTION__); | |
266 | ret = -EBUSY; | |
267 | goto out; | |
268 | } | |
269 | ||
270 | /* generate SMI */ | |
271 | asm volatile ( | |
272 | "outb %b0,%w1" | |
273 | : /* no output args */ | |
274 | : "a" (smi_cmd->command_code), | |
275 | "d" (smi_cmd->command_address), | |
276 | "b" (smi_cmd->ebx), | |
277 | "c" (smi_cmd->ecx) | |
278 | : "memory" | |
279 | ); | |
280 | ||
281 | out: | |
282 | set_cpus_allowed(current, old_mask); | |
283 | return ret; | |
284 | } | |
285 | ||
286 | /** | |
287 | * smi_request_store: | |
288 | * | |
289 | * The valid values are: | |
290 | * 0: zero SMI data buffer | |
291 | * 1: generate calling interface SMI | |
292 | * 2: generate raw SMI | |
293 | * | |
294 | * User application writes smi_cmd to smi_data before telling driver | |
295 | * to generate SMI. | |
296 | */ | |
297 | static ssize_t smi_request_store(struct device *dev, | |
298 | struct device_attribute *attr, | |
299 | const char *buf, size_t count) | |
300 | { | |
301 | struct smi_cmd *smi_cmd; | |
302 | unsigned long val = simple_strtoul(buf, NULL, 10); | |
303 | ssize_t ret; | |
304 | ||
305 | down(&smi_data_lock); | |
306 | ||
307 | if (smi_data_buf_size < sizeof(struct smi_cmd)) { | |
308 | ret = -ENODEV; | |
309 | goto out; | |
310 | } | |
311 | smi_cmd = (struct smi_cmd *)smi_data_buf; | |
312 | ||
313 | switch (val) { | |
314 | case 2: | |
315 | /* Raw SMI */ | |
316 | ret = smi_request(smi_cmd); | |
317 | if (!ret) | |
318 | ret = count; | |
319 | break; | |
320 | case 1: | |
321 | /* Calling Interface SMI */ | |
322 | smi_cmd->ebx = (u32) virt_to_phys(smi_cmd->command_buffer); | |
323 | ret = smi_request(smi_cmd); | |
324 | if (!ret) | |
325 | ret = count; | |
326 | break; | |
327 | case 0: | |
328 | memset(smi_data_buf, 0, smi_data_buf_size); | |
329 | ret = count; | |
330 | break; | |
331 | default: | |
332 | ret = -EINVAL; | |
333 | break; | |
334 | } | |
335 | ||
336 | out: | |
337 | up(&smi_data_lock); | |
338 | return ret; | |
339 | } | |
340 | ||
341 | /** | |
342 | * host_control_smi: generate host control SMI | |
343 | * | |
344 | * Caller must set up the host control command in smi_data_buf. | |
345 | */ | |
346 | static int host_control_smi(void) | |
347 | { | |
348 | struct apm_cmd *apm_cmd; | |
349 | u8 *data; | |
350 | unsigned long flags; | |
351 | u32 num_ticks; | |
352 | s8 cmd_status; | |
353 | u8 index; | |
354 | ||
355 | apm_cmd = (struct apm_cmd *)smi_data_buf; | |
356 | apm_cmd->status = ESM_STATUS_CMD_UNSUCCESSFUL; | |
357 | ||
358 | switch (host_control_smi_type) { | |
359 | case HC_SMITYPE_TYPE1: | |
360 | spin_lock_irqsave(&rtc_lock, flags); | |
361 | /* write SMI data buffer physical address */ | |
362 | data = (u8 *)&smi_data_buf_phys_addr; | |
363 | for (index = PE1300_CMOS_CMD_STRUCT_PTR; | |
364 | index < (PE1300_CMOS_CMD_STRUCT_PTR + 4); | |
365 | index++, data++) { | |
366 | outb(index, | |
367 | (CMOS_BASE_PORT + CMOS_PAGE2_INDEX_PORT_PIIX4)); | |
368 | outb(*data, | |
369 | (CMOS_BASE_PORT + CMOS_PAGE2_DATA_PORT_PIIX4)); | |
370 | } | |
371 | ||
372 | /* first set status to -1 as called by spec */ | |
373 | cmd_status = ESM_STATUS_CMD_UNSUCCESSFUL; | |
374 | outb((u8) cmd_status, PCAT_APM_STATUS_PORT); | |
375 | ||
376 | /* generate SMM call */ | |
377 | outb(ESM_APM_CMD, PCAT_APM_CONTROL_PORT); | |
378 | spin_unlock_irqrestore(&rtc_lock, flags); | |
379 | ||
380 | /* wait a few to see if it executed */ | |
381 | num_ticks = TIMEOUT_USEC_SHORT_SEMA_BLOCKING; | |
382 | while ((cmd_status = inb(PCAT_APM_STATUS_PORT)) | |
383 | == ESM_STATUS_CMD_UNSUCCESSFUL) { | |
384 | num_ticks--; | |
385 | if (num_ticks == EXPIRED_TIMER) | |
386 | return -ETIME; | |
387 | } | |
388 | break; | |
389 | ||
390 | case HC_SMITYPE_TYPE2: | |
391 | case HC_SMITYPE_TYPE3: | |
392 | spin_lock_irqsave(&rtc_lock, flags); | |
393 | /* write SMI data buffer physical address */ | |
394 | data = (u8 *)&smi_data_buf_phys_addr; | |
395 | for (index = PE1400_CMOS_CMD_STRUCT_PTR; | |
396 | index < (PE1400_CMOS_CMD_STRUCT_PTR + 4); | |
397 | index++, data++) { | |
398 | outb(index, (CMOS_BASE_PORT + CMOS_PAGE1_INDEX_PORT)); | |
399 | outb(*data, (CMOS_BASE_PORT + CMOS_PAGE1_DATA_PORT)); | |
400 | } | |
401 | ||
402 | /* generate SMM call */ | |
403 | if (host_control_smi_type == HC_SMITYPE_TYPE3) | |
404 | outb(ESM_APM_CMD, PCAT_APM_CONTROL_PORT); | |
405 | else | |
406 | outb(ESM_APM_CMD, PE1400_APM_CONTROL_PORT); | |
407 | ||
408 | /* restore RTC index pointer since it was written to above */ | |
409 | CMOS_READ(RTC_REG_C); | |
410 | spin_unlock_irqrestore(&rtc_lock, flags); | |
411 | ||
412 | /* read control port back to serialize write */ | |
413 | cmd_status = inb(PE1400_APM_CONTROL_PORT); | |
414 | ||
415 | /* wait a few to see if it executed */ | |
416 | num_ticks = TIMEOUT_USEC_SHORT_SEMA_BLOCKING; | |
417 | while (apm_cmd->status == ESM_STATUS_CMD_UNSUCCESSFUL) { | |
418 | num_ticks--; | |
419 | if (num_ticks == EXPIRED_TIMER) | |
420 | return -ETIME; | |
421 | } | |
422 | break; | |
423 | ||
424 | default: | |
425 | dev_dbg(&dcdbas_pdev->dev, "%s: invalid SMI type %u\n", | |
426 | __FUNCTION__, host_control_smi_type); | |
427 | return -ENOSYS; | |
428 | } | |
429 | ||
430 | return 0; | |
431 | } | |
432 | ||
433 | /** | |
434 | * dcdbas_host_control: initiate host control | |
435 | * | |
436 | * This function is called by the driver after the system has | |
437 | * finished shutting down if the user application specified a | |
438 | * host control action to perform on shutdown. It is safe to | |
439 | * use smi_data_buf at this point because the system has finished | |
440 | * shutting down and no userspace apps are running. | |
441 | */ | |
442 | static void dcdbas_host_control(void) | |
443 | { | |
444 | struct apm_cmd *apm_cmd; | |
445 | u8 action; | |
446 | ||
447 | if (host_control_action == HC_ACTION_NONE) | |
448 | return; | |
449 | ||
450 | action = host_control_action; | |
451 | host_control_action = HC_ACTION_NONE; | |
452 | ||
453 | if (!smi_data_buf) { | |
454 | dev_dbg(&dcdbas_pdev->dev, "%s: no SMI buffer\n", __FUNCTION__); | |
455 | return; | |
456 | } | |
457 | ||
458 | if (smi_data_buf_size < sizeof(struct apm_cmd)) { | |
459 | dev_dbg(&dcdbas_pdev->dev, "%s: SMI buffer too small\n", | |
460 | __FUNCTION__); | |
461 | return; | |
462 | } | |
463 | ||
464 | apm_cmd = (struct apm_cmd *)smi_data_buf; | |
465 | ||
466 | /* power off takes precedence */ | |
467 | if (action & HC_ACTION_HOST_CONTROL_POWEROFF) { | |
468 | apm_cmd->command = ESM_APM_POWER_CYCLE; | |
469 | apm_cmd->reserved = 0; | |
470 | *((s16 *)&apm_cmd->parameters.shortreq.parm[0]) = (s16) 0; | |
471 | host_control_smi(); | |
472 | } else if (action & HC_ACTION_HOST_CONTROL_POWERCYCLE) { | |
473 | apm_cmd->command = ESM_APM_POWER_CYCLE; | |
474 | apm_cmd->reserved = 0; | |
475 | *((s16 *)&apm_cmd->parameters.shortreq.parm[0]) = (s16) 20; | |
476 | host_control_smi(); | |
477 | } | |
478 | } | |
479 | ||
480 | /** | |
481 | * dcdbas_reboot_notify: handle reboot notification for host control | |
482 | */ | |
483 | static int dcdbas_reboot_notify(struct notifier_block *nb, unsigned long code, | |
484 | void *unused) | |
485 | { | |
486 | static unsigned int notify_cnt = 0; | |
487 | ||
488 | switch (code) { | |
489 | case SYS_DOWN: | |
490 | case SYS_HALT: | |
491 | case SYS_POWER_OFF: | |
492 | if (host_control_on_shutdown) { | |
493 | /* firmware is going to perform host control action */ | |
494 | if (++notify_cnt == 2) { | |
495 | printk(KERN_WARNING | |
496 | "Please wait for shutdown " | |
497 | "action to complete...\n"); | |
498 | dcdbas_host_control(); | |
499 | } | |
500 | /* | |
501 | * register again and initiate the host control | |
502 | * action on the second notification to allow | |
503 | * everyone that registered to be notified | |
504 | */ | |
505 | register_reboot_notifier(nb); | |
506 | } | |
507 | break; | |
508 | } | |
509 | ||
510 | return NOTIFY_DONE; | |
511 | } | |
512 | ||
513 | static struct notifier_block dcdbas_reboot_nb = { | |
514 | .notifier_call = dcdbas_reboot_notify, | |
515 | .next = NULL, | |
516 | .priority = 0 | |
517 | }; | |
518 | ||
519 | static DCDBAS_BIN_ATTR_RW(smi_data); | |
520 | ||
521 | static struct bin_attribute *dcdbas_bin_attrs[] = { | |
522 | &bin_attr_smi_data, | |
523 | NULL | |
524 | }; | |
525 | ||
526 | static DCDBAS_DEV_ATTR_RW(smi_data_buf_size); | |
527 | static DCDBAS_DEV_ATTR_RO(smi_data_buf_phys_addr); | |
528 | static DCDBAS_DEV_ATTR_WO(smi_request); | |
529 | static DCDBAS_DEV_ATTR_RW(host_control_action); | |
530 | static DCDBAS_DEV_ATTR_RW(host_control_smi_type); | |
531 | static DCDBAS_DEV_ATTR_RW(host_control_on_shutdown); | |
532 | ||
533 | static struct device_attribute *dcdbas_dev_attrs[] = { | |
534 | &dev_attr_smi_data_buf_size, | |
535 | &dev_attr_smi_data_buf_phys_addr, | |
536 | &dev_attr_smi_request, | |
537 | &dev_attr_host_control_action, | |
538 | &dev_attr_host_control_smi_type, | |
539 | &dev_attr_host_control_on_shutdown, | |
540 | NULL | |
541 | }; | |
542 | ||
543 | /** | |
544 | * dcdbas_init: initialize driver | |
545 | */ | |
546 | static int __init dcdbas_init(void) | |
547 | { | |
548 | int i; | |
549 | ||
550 | host_control_action = HC_ACTION_NONE; | |
551 | host_control_smi_type = HC_SMITYPE_NONE; | |
552 | ||
553 | dcdbas_pdev = platform_device_register_simple(DRIVER_NAME, -1, NULL, 0); | |
554 | if (IS_ERR(dcdbas_pdev)) | |
555 | return PTR_ERR(dcdbas_pdev); | |
556 | ||
557 | /* | |
558 | * BIOS SMI calls require buffer addresses be in 32-bit address space. | |
559 | * This is done by setting the DMA mask below. | |
560 | */ | |
561 | dcdbas_pdev->dev.coherent_dma_mask = DMA_32BIT_MASK; | |
562 | dcdbas_pdev->dev.dma_mask = &dcdbas_pdev->dev.coherent_dma_mask; | |
563 | ||
564 | register_reboot_notifier(&dcdbas_reboot_nb); | |
565 | ||
566 | for (i = 0; dcdbas_bin_attrs[i]; i++) | |
567 | sysfs_create_bin_file(&dcdbas_pdev->dev.kobj, | |
568 | dcdbas_bin_attrs[i]); | |
569 | ||
570 | for (i = 0; dcdbas_dev_attrs[i]; i++) | |
571 | device_create_file(&dcdbas_pdev->dev, dcdbas_dev_attrs[i]); | |
572 | ||
573 | dev_info(&dcdbas_pdev->dev, "%s (version %s)\n", | |
574 | DRIVER_DESCRIPTION, DRIVER_VERSION); | |
575 | ||
576 | return 0; | |
577 | } | |
578 | ||
579 | /** | |
580 | * dcdbas_exit: perform driver cleanup | |
581 | */ | |
582 | static void __exit dcdbas_exit(void) | |
583 | { | |
435a80f6 DW |
584 | /* |
585 | * make sure functions that use dcdbas_pdev are called | |
586 | * before platform_device_unregister | |
587 | */ | |
90563ec4 DW |
588 | unregister_reboot_notifier(&dcdbas_reboot_nb); |
589 | smi_data_buf_free(); | |
435a80f6 | 590 | platform_device_unregister(dcdbas_pdev); |
90563ec4 DW |
591 | } |
592 | ||
593 | module_init(dcdbas_init); | |
594 | module_exit(dcdbas_exit); | |
595 | ||
596 | MODULE_DESCRIPTION(DRIVER_DESCRIPTION " (version " DRIVER_VERSION ")"); | |
597 | MODULE_VERSION(DRIVER_VERSION); | |
598 | MODULE_AUTHOR("Dell Inc."); | |
599 | MODULE_LICENSE("GPL"); | |
600 |