Commit | Line | Data |
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57c7c3a0 DW |
1 | /* |
2 | * A hwmon driver for the IBM PowerExecutive temperature/power sensors | |
3 | * Copyright (C) 2007 IBM | |
4 | * | |
5407e051 | 5 | * Author: Darrick J. Wong <darrick.wong@oracle.com> |
57c7c3a0 DW |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
20 | */ | |
21 | ||
22 | #include <linux/ipmi.h> | |
23 | #include <linux/module.h> | |
24 | #include <linux/hwmon.h> | |
25 | #include <linux/hwmon-sysfs.h> | |
26 | #include <linux/jiffies.h> | |
27 | #include <linux/mutex.h> | |
5a0e3ad6 | 28 | #include <linux/slab.h> |
fa845740 | 29 | #include <linux/err.h> |
57c7c3a0 DW |
30 | |
31 | #define REFRESH_INTERVAL (2 * HZ) | |
32 | #define DRVNAME "ibmpex" | |
33 | ||
34 | #define PEX_GET_VERSION 1 | |
35 | #define PEX_GET_SENSOR_COUNT 2 | |
36 | #define PEX_GET_SENSOR_NAME 3 | |
37 | #define PEX_RESET_HIGH_LOW 4 | |
38 | #define PEX_GET_SENSOR_DATA 6 | |
39 | ||
40 | #define PEX_NET_FUNCTION 0x3A | |
41 | #define PEX_COMMAND 0x3C | |
42 | ||
43 | static inline u16 extract_value(const char *data, int offset) | |
44 | { | |
29041b4b | 45 | return be16_to_cpup((__be16 *)&data[offset]); |
57c7c3a0 DW |
46 | } |
47 | ||
48 | #define TEMP_SENSOR 1 | |
49 | #define POWER_SENSOR 2 | |
50 | ||
51 | #define PEX_SENSOR_TYPE_LEN 3 | |
52 | static u8 const power_sensor_sig[] = {0x70, 0x77, 0x72}; | |
53 | static u8 const temp_sensor_sig[] = {0x74, 0x65, 0x6D}; | |
54 | ||
55 | #define PEX_MULT_LEN 2 | |
56 | static u8 const watt_sensor_sig[] = {0x41, 0x43}; | |
57 | ||
58 | #define PEX_NUM_SENSOR_FUNCS 3 | |
59 | static char const * const power_sensor_name_templates[] = { | |
60 | "%s%d_average", | |
61 | "%s%d_average_lowest", | |
62 | "%s%d_average_highest" | |
63 | }; | |
64 | static char const * const temp_sensor_name_templates[] = { | |
65 | "%s%d_input", | |
66 | "%s%d_input_lowest", | |
67 | "%s%d_input_highest" | |
68 | }; | |
69 | ||
70 | static void ibmpex_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data); | |
71 | static void ibmpex_register_bmc(int iface, struct device *dev); | |
72 | static void ibmpex_bmc_gone(int iface); | |
73 | ||
74 | struct ibmpex_sensor_data { | |
75 | int in_use; | |
76 | s16 values[PEX_NUM_SENSOR_FUNCS]; | |
77 | int multiplier; | |
78 | ||
79 | struct sensor_device_attribute_2 attr[PEX_NUM_SENSOR_FUNCS]; | |
80 | }; | |
81 | ||
82 | struct ibmpex_bmc_data { | |
83 | struct list_head list; | |
84 | struct device *hwmon_dev; | |
85 | struct device *bmc_device; | |
86 | struct mutex lock; | |
87 | char valid; | |
88 | unsigned long last_updated; /* In jiffies */ | |
89 | ||
90 | struct ipmi_addr address; | |
91 | struct completion read_complete; | |
92 | ipmi_user_t user; | |
93 | int interface; | |
94 | ||
95 | struct kernel_ipmi_msg tx_message; | |
96 | unsigned char tx_msg_data[IPMI_MAX_MSG_LENGTH]; | |
97 | long tx_msgid; | |
98 | ||
99 | unsigned char rx_msg_data[IPMI_MAX_MSG_LENGTH]; | |
100 | unsigned long rx_msg_len; | |
101 | unsigned char rx_result; | |
102 | int rx_recv_type; | |
103 | ||
104 | unsigned char sensor_major; | |
105 | unsigned char sensor_minor; | |
106 | ||
107 | unsigned char num_sensors; | |
108 | struct ibmpex_sensor_data *sensors; | |
109 | }; | |
110 | ||
111 | struct ibmpex_driver_data { | |
112 | struct list_head bmc_data; | |
113 | struct ipmi_smi_watcher bmc_events; | |
114 | struct ipmi_user_hndl ipmi_hndlrs; | |
115 | }; | |
116 | ||
117 | static struct ibmpex_driver_data driver_data = { | |
118 | .bmc_data = LIST_HEAD_INIT(driver_data.bmc_data), | |
119 | .bmc_events = { | |
120 | .owner = THIS_MODULE, | |
121 | .new_smi = ibmpex_register_bmc, | |
122 | .smi_gone = ibmpex_bmc_gone, | |
123 | }, | |
124 | .ipmi_hndlrs = { | |
125 | .ipmi_recv_hndl = ibmpex_msg_handler, | |
126 | }, | |
127 | }; | |
128 | ||
129 | static int ibmpex_send_message(struct ibmpex_bmc_data *data) | |
130 | { | |
131 | int err; | |
132 | ||
133 | err = ipmi_validate_addr(&data->address, sizeof(data->address)); | |
134 | if (err) | |
135 | goto out; | |
136 | ||
137 | data->tx_msgid++; | |
138 | err = ipmi_request_settime(data->user, &data->address, data->tx_msgid, | |
139 | &data->tx_message, data, 0, 0, 0); | |
140 | if (err) | |
141 | goto out1; | |
142 | ||
143 | return 0; | |
144 | out1: | |
2ecb044e | 145 | dev_err(data->bmc_device, "request_settime=%x\n", err); |
57c7c3a0 DW |
146 | return err; |
147 | out: | |
2ecb044e | 148 | dev_err(data->bmc_device, "validate_addr=%x\n", err); |
57c7c3a0 DW |
149 | return err; |
150 | } | |
151 | ||
152 | static int ibmpex_ver_check(struct ibmpex_bmc_data *data) | |
153 | { | |
154 | data->tx_msg_data[0] = PEX_GET_VERSION; | |
155 | data->tx_message.data_len = 1; | |
156 | ibmpex_send_message(data); | |
157 | ||
158 | wait_for_completion(&data->read_complete); | |
159 | ||
160 | if (data->rx_result || data->rx_msg_len != 6) | |
161 | return -ENOENT; | |
162 | ||
163 | data->sensor_major = data->rx_msg_data[0]; | |
164 | data->sensor_minor = data->rx_msg_data[1]; | |
165 | ||
b55f3757 GR |
166 | dev_info(data->bmc_device, |
167 | "Found BMC with sensor interface v%d.%d %d-%02d-%02d on interface %d\n", | |
2ecb044e DW |
168 | data->sensor_major, |
169 | data->sensor_minor, | |
170 | extract_value(data->rx_msg_data, 2), | |
171 | data->rx_msg_data[4], | |
172 | data->rx_msg_data[5], | |
173 | data->interface); | |
57c7c3a0 DW |
174 | |
175 | return 0; | |
176 | } | |
177 | ||
178 | static int ibmpex_query_sensor_count(struct ibmpex_bmc_data *data) | |
179 | { | |
180 | data->tx_msg_data[0] = PEX_GET_SENSOR_COUNT; | |
181 | data->tx_message.data_len = 1; | |
182 | ibmpex_send_message(data); | |
183 | ||
184 | wait_for_completion(&data->read_complete); | |
185 | ||
186 | if (data->rx_result || data->rx_msg_len != 1) | |
187 | return -ENOENT; | |
188 | ||
189 | return data->rx_msg_data[0]; | |
190 | } | |
191 | ||
192 | static int ibmpex_query_sensor_name(struct ibmpex_bmc_data *data, int sensor) | |
193 | { | |
194 | data->tx_msg_data[0] = PEX_GET_SENSOR_NAME; | |
195 | data->tx_msg_data[1] = sensor; | |
196 | data->tx_message.data_len = 2; | |
197 | ibmpex_send_message(data); | |
198 | ||
199 | wait_for_completion(&data->read_complete); | |
200 | ||
201 | if (data->rx_result || data->rx_msg_len < 1) | |
202 | return -ENOENT; | |
203 | ||
204 | return 0; | |
205 | } | |
206 | ||
207 | static int ibmpex_query_sensor_data(struct ibmpex_bmc_data *data, int sensor) | |
208 | { | |
209 | data->tx_msg_data[0] = PEX_GET_SENSOR_DATA; | |
210 | data->tx_msg_data[1] = sensor; | |
211 | data->tx_message.data_len = 2; | |
212 | ibmpex_send_message(data); | |
213 | ||
214 | wait_for_completion(&data->read_complete); | |
215 | ||
216 | if (data->rx_result || data->rx_msg_len < 26) { | |
2ecb044e DW |
217 | dev_err(data->bmc_device, "Error reading sensor %d.\n", |
218 | sensor); | |
57c7c3a0 DW |
219 | return -ENOENT; |
220 | } | |
221 | ||
222 | return 0; | |
223 | } | |
224 | ||
225 | static int ibmpex_reset_high_low_data(struct ibmpex_bmc_data *data) | |
226 | { | |
227 | data->tx_msg_data[0] = PEX_RESET_HIGH_LOW; | |
228 | data->tx_message.data_len = 1; | |
229 | ibmpex_send_message(data); | |
230 | ||
231 | wait_for_completion(&data->read_complete); | |
232 | ||
233 | return 0; | |
234 | } | |
235 | ||
236 | static void ibmpex_update_device(struct ibmpex_bmc_data *data) | |
237 | { | |
238 | int i, err; | |
239 | ||
240 | mutex_lock(&data->lock); | |
241 | if (time_before(jiffies, data->last_updated + REFRESH_INTERVAL) && | |
242 | data->valid) | |
243 | goto out; | |
244 | ||
245 | for (i = 0; i < data->num_sensors; i++) { | |
246 | if (!data->sensors[i].in_use) | |
247 | continue; | |
248 | err = ibmpex_query_sensor_data(data, i); | |
249 | if (err) | |
250 | continue; | |
251 | data->sensors[i].values[0] = | |
252 | extract_value(data->rx_msg_data, 16); | |
253 | data->sensors[i].values[1] = | |
254 | extract_value(data->rx_msg_data, 18); | |
255 | data->sensors[i].values[2] = | |
256 | extract_value(data->rx_msg_data, 20); | |
257 | } | |
258 | ||
259 | data->last_updated = jiffies; | |
260 | data->valid = 1; | |
261 | ||
262 | out: | |
263 | mutex_unlock(&data->lock); | |
264 | } | |
265 | ||
266 | static struct ibmpex_bmc_data *get_bmc_data(int iface) | |
267 | { | |
268 | struct ibmpex_bmc_data *p, *next; | |
269 | ||
270 | list_for_each_entry_safe(p, next, &driver_data.bmc_data, list) | |
271 | if (p->interface == iface) | |
272 | return p; | |
273 | ||
274 | return NULL; | |
275 | } | |
276 | ||
277 | static ssize_t show_name(struct device *dev, struct device_attribute *devattr, | |
278 | char *buf) | |
279 | { | |
280 | return sprintf(buf, "%s\n", DRVNAME); | |
281 | } | |
282 | static SENSOR_DEVICE_ATTR(name, S_IRUGO, show_name, NULL, 0); | |
283 | ||
284 | static ssize_t ibmpex_show_sensor(struct device *dev, | |
285 | struct device_attribute *devattr, | |
286 | char *buf) | |
287 | { | |
288 | struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr); | |
289 | struct ibmpex_bmc_data *data = dev_get_drvdata(dev); | |
290 | int mult = data->sensors[attr->index].multiplier; | |
291 | ibmpex_update_device(data); | |
292 | ||
293 | return sprintf(buf, "%d\n", | |
294 | data->sensors[attr->index].values[attr->nr] * mult); | |
295 | } | |
296 | ||
297 | static ssize_t ibmpex_reset_high_low(struct device *dev, | |
298 | struct device_attribute *devattr, | |
299 | const char *buf, | |
300 | size_t count) | |
301 | { | |
302 | struct ibmpex_bmc_data *data = dev_get_drvdata(dev); | |
303 | ||
304 | ibmpex_reset_high_low_data(data); | |
305 | ||
306 | return count; | |
307 | } | |
308 | ||
309 | static SENSOR_DEVICE_ATTR(reset_high_low, S_IWUSR, NULL, | |
310 | ibmpex_reset_high_low, 0); | |
311 | ||
312 | static int is_power_sensor(const char *sensor_id, int len) | |
313 | { | |
314 | if (len < PEX_SENSOR_TYPE_LEN) | |
315 | return 0; | |
316 | ||
317 | if (!memcmp(sensor_id, power_sensor_sig, PEX_SENSOR_TYPE_LEN)) | |
318 | return 1; | |
319 | return 0; | |
320 | } | |
321 | ||
322 | static int is_temp_sensor(const char *sensor_id, int len) | |
323 | { | |
324 | if (len < PEX_SENSOR_TYPE_LEN) | |
325 | return 0; | |
326 | ||
327 | if (!memcmp(sensor_id, temp_sensor_sig, PEX_SENSOR_TYPE_LEN)) | |
328 | return 1; | |
329 | return 0; | |
330 | } | |
331 | ||
df9cb033 DW |
332 | static int power_sensor_multiplier(struct ibmpex_bmc_data *data, |
333 | const char *sensor_id, int len) | |
57c7c3a0 DW |
334 | { |
335 | int i; | |
336 | ||
df9cb033 DW |
337 | if (data->sensor_major == 2) |
338 | return 1000000; | |
339 | ||
57c7c3a0 DW |
340 | for (i = PEX_SENSOR_TYPE_LEN; i < len - 1; i++) |
341 | if (!memcmp(&sensor_id[i], watt_sensor_sig, PEX_MULT_LEN)) | |
342 | return 1000000; | |
343 | ||
344 | return 100000; | |
345 | } | |
346 | ||
347 | static int create_sensor(struct ibmpex_bmc_data *data, int type, | |
348 | int counter, int sensor, int func) | |
349 | { | |
350 | int err; | |
351 | char *n; | |
352 | ||
353 | n = kmalloc(32, GFP_KERNEL); | |
354 | if (!n) | |
355 | return -ENOMEM; | |
356 | ||
357 | if (type == TEMP_SENSOR) | |
358 | sprintf(n, temp_sensor_name_templates[func], "temp", counter); | |
359 | else if (type == POWER_SENSOR) | |
360 | sprintf(n, power_sensor_name_templates[func], "power", counter); | |
361 | ||
fb794e0f | 362 | sysfs_attr_init(&data->sensors[sensor].attr[func].dev_attr.attr); |
57c7c3a0 DW |
363 | data->sensors[sensor].attr[func].dev_attr.attr.name = n; |
364 | data->sensors[sensor].attr[func].dev_attr.attr.mode = S_IRUGO; | |
365 | data->sensors[sensor].attr[func].dev_attr.show = ibmpex_show_sensor; | |
366 | data->sensors[sensor].attr[func].index = sensor; | |
367 | data->sensors[sensor].attr[func].nr = func; | |
368 | ||
369 | err = device_create_file(data->bmc_device, | |
370 | &data->sensors[sensor].attr[func].dev_attr); | |
371 | if (err) { | |
372 | data->sensors[sensor].attr[func].dev_attr.attr.name = NULL; | |
373 | kfree(n); | |
374 | return err; | |
375 | } | |
376 | ||
377 | return 0; | |
378 | } | |
379 | ||
380 | static int ibmpex_find_sensors(struct ibmpex_bmc_data *data) | |
381 | { | |
382 | int i, j, err; | |
383 | int sensor_type; | |
384 | int sensor_counter; | |
385 | int num_power = 0; | |
386 | int num_temp = 0; | |
387 | ||
388 | err = ibmpex_query_sensor_count(data); | |
389 | if (err <= 0) | |
390 | return -ENOENT; | |
391 | data->num_sensors = err; | |
392 | ||
393 | data->sensors = kzalloc(data->num_sensors * sizeof(*data->sensors), | |
394 | GFP_KERNEL); | |
395 | if (!data->sensors) | |
396 | return -ENOMEM; | |
397 | ||
398 | for (i = 0; i < data->num_sensors; i++) { | |
399 | err = ibmpex_query_sensor_name(data, i); | |
400 | if (err) | |
401 | continue; | |
402 | ||
403 | if (is_power_sensor(data->rx_msg_data, data->rx_msg_len)) { | |
404 | sensor_type = POWER_SENSOR; | |
405 | num_power++; | |
406 | sensor_counter = num_power; | |
407 | data->sensors[i].multiplier = | |
df9cb033 DW |
408 | power_sensor_multiplier(data, |
409 | data->rx_msg_data, | |
410 | data->rx_msg_len); | |
57c7c3a0 DW |
411 | } else if (is_temp_sensor(data->rx_msg_data, |
412 | data->rx_msg_len)) { | |
413 | sensor_type = TEMP_SENSOR; | |
414 | num_temp++; | |
415 | sensor_counter = num_temp; | |
ffda6857 | 416 | data->sensors[i].multiplier = 1000; |
57c7c3a0 DW |
417 | } else |
418 | continue; | |
419 | ||
420 | data->sensors[i].in_use = 1; | |
421 | ||
422 | /* Create attributes */ | |
423 | for (j = 0; j < PEX_NUM_SENSOR_FUNCS; j++) { | |
424 | err = create_sensor(data, sensor_type, sensor_counter, | |
425 | i, j); | |
426 | if (err) | |
427 | goto exit_remove; | |
428 | } | |
429 | } | |
430 | ||
431 | err = device_create_file(data->bmc_device, | |
432 | &sensor_dev_attr_reset_high_low.dev_attr); | |
433 | if (err) | |
434 | goto exit_remove; | |
435 | ||
436 | err = device_create_file(data->bmc_device, | |
437 | &sensor_dev_attr_name.dev_attr); | |
438 | if (err) | |
439 | goto exit_remove; | |
440 | ||
441 | return 0; | |
442 | ||
443 | exit_remove: | |
444 | device_remove_file(data->bmc_device, | |
445 | &sensor_dev_attr_reset_high_low.dev_attr); | |
446 | device_remove_file(data->bmc_device, &sensor_dev_attr_name.dev_attr); | |
447 | for (i = 0; i < data->num_sensors; i++) | |
448 | for (j = 0; j < PEX_NUM_SENSOR_FUNCS; j++) { | |
449 | if (!data->sensors[i].attr[j].dev_attr.attr.name) | |
450 | continue; | |
451 | device_remove_file(data->bmc_device, | |
452 | &data->sensors[i].attr[j].dev_attr); | |
453 | kfree(data->sensors[i].attr[j].dev_attr.attr.name); | |
454 | } | |
455 | ||
456 | kfree(data->sensors); | |
457 | return err; | |
458 | } | |
459 | ||
460 | static void ibmpex_register_bmc(int iface, struct device *dev) | |
461 | { | |
462 | struct ibmpex_bmc_data *data; | |
463 | int err; | |
464 | ||
465 | data = kzalloc(sizeof(*data), GFP_KERNEL); | |
466 | if (!data) { | |
2ecb044e | 467 | dev_err(dev, "Insufficient memory for BMC interface.\n"); |
57c7c3a0 DW |
468 | return; |
469 | } | |
470 | ||
471 | data->address.addr_type = IPMI_SYSTEM_INTERFACE_ADDR_TYPE; | |
472 | data->address.channel = IPMI_BMC_CHANNEL; | |
473 | data->address.data[0] = 0; | |
474 | data->interface = iface; | |
475 | data->bmc_device = dev; | |
476 | ||
477 | /* Create IPMI messaging interface user */ | |
478 | err = ipmi_create_user(data->interface, &driver_data.ipmi_hndlrs, | |
479 | data, &data->user); | |
480 | if (err < 0) { | |
b55f3757 GR |
481 | dev_err(dev, |
482 | "Unable to register user with IPMI interface %d\n", | |
483 | data->interface); | |
57c7c3a0 DW |
484 | goto out; |
485 | } | |
486 | ||
487 | mutex_init(&data->lock); | |
488 | ||
489 | /* Initialize message */ | |
490 | data->tx_msgid = 0; | |
491 | init_completion(&data->read_complete); | |
492 | data->tx_message.netfn = PEX_NET_FUNCTION; | |
493 | data->tx_message.cmd = PEX_COMMAND; | |
494 | data->tx_message.data = data->tx_msg_data; | |
495 | ||
496 | /* Does this BMC support PowerExecutive? */ | |
497 | err = ibmpex_ver_check(data); | |
498 | if (err) | |
499 | goto out_user; | |
500 | ||
501 | /* Register the BMC as a HWMON class device */ | |
502 | data->hwmon_dev = hwmon_device_register(data->bmc_device); | |
503 | ||
504 | if (IS_ERR(data->hwmon_dev)) { | |
b55f3757 GR |
505 | dev_err(data->bmc_device, |
506 | "Unable to register hwmon device for IPMI interface %d\n", | |
2ecb044e | 507 | data->interface); |
4cfdbe7f | 508 | goto out_user; |
57c7c3a0 DW |
509 | } |
510 | ||
511 | /* finally add the new bmc data to the bmc data list */ | |
512 | dev_set_drvdata(dev, data); | |
513 | list_add_tail(&data->list, &driver_data.bmc_data); | |
514 | ||
515 | /* Now go find all the sensors */ | |
516 | err = ibmpex_find_sensors(data); | |
517 | if (err) { | |
2ecb044e | 518 | dev_err(data->bmc_device, "Error %d finding sensors\n", err); |
57c7c3a0 DW |
519 | goto out_register; |
520 | } | |
521 | ||
522 | return; | |
523 | ||
524 | out_register: | |
525 | hwmon_device_unregister(data->hwmon_dev); | |
526 | out_user: | |
527 | ipmi_destroy_user(data->user); | |
528 | out: | |
529 | kfree(data); | |
530 | } | |
531 | ||
532 | static void ibmpex_bmc_delete(struct ibmpex_bmc_data *data) | |
533 | { | |
534 | int i, j; | |
535 | ||
536 | device_remove_file(data->bmc_device, | |
537 | &sensor_dev_attr_reset_high_low.dev_attr); | |
538 | device_remove_file(data->bmc_device, &sensor_dev_attr_name.dev_attr); | |
539 | for (i = 0; i < data->num_sensors; i++) | |
540 | for (j = 0; j < PEX_NUM_SENSOR_FUNCS; j++) { | |
541 | if (!data->sensors[i].attr[j].dev_attr.attr.name) | |
542 | continue; | |
543 | device_remove_file(data->bmc_device, | |
544 | &data->sensors[i].attr[j].dev_attr); | |
545 | kfree(data->sensors[i].attr[j].dev_attr.attr.name); | |
546 | } | |
547 | ||
548 | list_del(&data->list); | |
549 | dev_set_drvdata(data->bmc_device, NULL); | |
550 | hwmon_device_unregister(data->hwmon_dev); | |
551 | ipmi_destroy_user(data->user); | |
552 | kfree(data->sensors); | |
553 | kfree(data); | |
554 | } | |
555 | ||
556 | static void ibmpex_bmc_gone(int iface) | |
557 | { | |
558 | struct ibmpex_bmc_data *data = get_bmc_data(iface); | |
559 | ||
560 | if (!data) | |
561 | return; | |
562 | ||
563 | ibmpex_bmc_delete(data); | |
564 | } | |
565 | ||
566 | static void ibmpex_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data) | |
567 | { | |
568 | struct ibmpex_bmc_data *data = (struct ibmpex_bmc_data *)user_msg_data; | |
569 | ||
570 | if (msg->msgid != data->tx_msgid) { | |
b55f3757 GR |
571 | dev_err(data->bmc_device, |
572 | "Mismatch between received msgid (%02x) and transmitted msgid (%02x)!\n", | |
2ecb044e DW |
573 | (int)msg->msgid, |
574 | (int)data->tx_msgid); | |
57c7c3a0 DW |
575 | ipmi_free_recv_msg(msg); |
576 | return; | |
577 | } | |
578 | ||
579 | data->rx_recv_type = msg->recv_type; | |
580 | if (msg->msg.data_len > 0) | |
581 | data->rx_result = msg->msg.data[0]; | |
582 | else | |
583 | data->rx_result = IPMI_UNKNOWN_ERR_COMPLETION_CODE; | |
584 | ||
585 | if (msg->msg.data_len > 1) { | |
586 | data->rx_msg_len = msg->msg.data_len - 1; | |
587 | memcpy(data->rx_msg_data, msg->msg.data + 1, data->rx_msg_len); | |
588 | } else | |
589 | data->rx_msg_len = 0; | |
590 | ||
591 | ipmi_free_recv_msg(msg); | |
592 | complete(&data->read_complete); | |
593 | } | |
594 | ||
595 | static int __init ibmpex_init(void) | |
596 | { | |
597 | return ipmi_smi_watcher_register(&driver_data.bmc_events); | |
598 | } | |
599 | ||
600 | static void __exit ibmpex_exit(void) | |
601 | { | |
602 | struct ibmpex_bmc_data *p, *next; | |
603 | ||
604 | ipmi_smi_watcher_unregister(&driver_data.bmc_events); | |
605 | list_for_each_entry_safe(p, next, &driver_data.bmc_data, list) | |
606 | ibmpex_bmc_delete(p); | |
607 | } | |
608 | ||
5407e051 | 609 | MODULE_AUTHOR("Darrick J. Wong <darrick.wong@oracle.com>"); |
57c7c3a0 DW |
610 | MODULE_DESCRIPTION("IBM PowerExecutive power/temperature sensor driver"); |
611 | MODULE_LICENSE("GPL"); | |
612 | ||
613 | module_init(ibmpex_init); | |
614 | module_exit(ibmpex_exit); | |
ff921361 DW |
615 | |
616 | MODULE_ALIAS("dmi:bvnIBM:*:pnIBMSystemx3350-*"); | |
617 | MODULE_ALIAS("dmi:bvnIBM:*:pnIBMSystemx3550-*"); | |
618 | MODULE_ALIAS("dmi:bvnIBM:*:pnIBMSystemx3650-*"); | |
619 | MODULE_ALIAS("dmi:bvnIBM:*:pnIBMSystemx3655-*"); | |
620 | MODULE_ALIAS("dmi:bvnIBM:*:pnIBMSystemx3755-*"); |