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0772a640 HG |
1 | /*************************************************************************** |
2 | * Copyright (C) 2011 Hans de Goede <hdegoede@redhat.com> * | |
3 | * * | |
4 | * This program is free software; you can redistribute it and/or modify * | |
5 | * it under the terms of the GNU General Public License as published by * | |
6 | * the Free Software Foundation; either version 2 of the License, or * | |
7 | * (at your option) any later version. * | |
8 | * * | |
9 | * This program is distributed in the hope that it will be useful, * | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * | |
12 | * GNU General Public License for more details. * | |
13 | * * | |
14 | * You should have received a copy of the GNU General Public License * | |
15 | * along with this program; if not, write to the * | |
16 | * Free Software Foundation, Inc., * | |
17 | * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * | |
18 | ***************************************************************************/ | |
19 | ||
20 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt | |
21 | ||
22 | #include <linux/module.h> | |
23 | #include <linux/init.h> | |
24 | #include <linux/slab.h> | |
25 | #include <linux/jiffies.h> | |
26 | #include <linux/platform_device.h> | |
27 | #include <linux/hwmon.h> | |
28 | #include <linux/hwmon-sysfs.h> | |
29 | #include <linux/err.h> | |
30 | #include <linux/mutex.h> | |
31 | #include "sch56xx-common.h" | |
32 | ||
33 | #define DRVNAME "sch5636" | |
34 | #define DEVNAME "theseus" /* We only support one model for now */ | |
35 | ||
36 | #define SCH5636_REG_FUJITSU_ID 0x780 | |
37 | #define SCH5636_REG_FUJITSU_REV 0x783 | |
38 | ||
39 | #define SCH5636_NO_INS 5 | |
40 | #define SCH5636_NO_TEMPS 16 | |
41 | #define SCH5636_NO_FANS 8 | |
42 | ||
43 | static const u16 SCH5636_REG_IN_VAL[SCH5636_NO_INS] = { | |
44 | 0x22, 0x23, 0x24, 0x25, 0x189 }; | |
45 | static const u16 SCH5636_REG_IN_FACTORS[SCH5636_NO_INS] = { | |
46 | 4400, 1500, 4000, 4400, 16000 }; | |
47 | static const char * const SCH5636_IN_LABELS[SCH5636_NO_INS] = { | |
48 | "3.3V", "VREF", "VBAT", "3.3AUX", "12V" }; | |
49 | ||
50 | static const u16 SCH5636_REG_TEMP_VAL[SCH5636_NO_TEMPS] = { | |
51 | 0x2B, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x180, 0x181, | |
52 | 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x8B, 0x8C }; | |
53 | #define SCH5636_REG_TEMP_CTRL(i) (0x790 + (i)) | |
54 | #define SCH5636_TEMP_WORKING 0x01 | |
55 | #define SCH5636_TEMP_ALARM 0x02 | |
56 | #define SCH5636_TEMP_DEACTIVATED 0x80 | |
57 | ||
58 | static const u16 SCH5636_REG_FAN_VAL[SCH5636_NO_FANS] = { | |
59 | 0x2C, 0x2E, 0x30, 0x32, 0x62, 0x64, 0x66, 0x68 }; | |
60 | #define SCH5636_REG_FAN_CTRL(i) (0x880 + (i)) | |
61 | /* FAULT in datasheet, but acts as an alarm */ | |
62 | #define SCH5636_FAN_ALARM 0x04 | |
63 | #define SCH5636_FAN_NOT_PRESENT 0x08 | |
64 | #define SCH5636_FAN_DEACTIVATED 0x80 | |
65 | ||
66 | ||
67 | struct sch5636_data { | |
68 | unsigned short addr; | |
69 | struct device *hwmon_dev; | |
70 | ||
71 | struct mutex update_lock; | |
72 | char valid; /* !=0 if following fields are valid */ | |
73 | unsigned long last_updated; /* In jiffies */ | |
74 | u8 in[SCH5636_NO_INS]; | |
75 | u8 temp_val[SCH5636_NO_TEMPS]; | |
76 | u8 temp_ctrl[SCH5636_NO_TEMPS]; | |
77 | u16 fan_val[SCH5636_NO_FANS]; | |
78 | u8 fan_ctrl[SCH5636_NO_FANS]; | |
79 | }; | |
80 | ||
81 | static struct sch5636_data *sch5636_update_device(struct device *dev) | |
82 | { | |
83 | struct sch5636_data *data = dev_get_drvdata(dev); | |
84 | struct sch5636_data *ret = data; | |
85 | int i, val; | |
86 | ||
87 | mutex_lock(&data->update_lock); | |
88 | ||
89 | /* Cache the values for 1 second */ | |
90 | if (data->valid && !time_after(jiffies, data->last_updated + HZ)) | |
91 | goto abort; | |
92 | ||
93 | for (i = 0; i < SCH5636_NO_INS; i++) { | |
94 | val = sch56xx_read_virtual_reg(data->addr, | |
95 | SCH5636_REG_IN_VAL[i]); | |
96 | if (unlikely(val < 0)) { | |
97 | ret = ERR_PTR(val); | |
98 | goto abort; | |
99 | } | |
100 | data->in[i] = val; | |
101 | } | |
102 | ||
103 | for (i = 0; i < SCH5636_NO_TEMPS; i++) { | |
104 | if (data->temp_ctrl[i] & SCH5636_TEMP_DEACTIVATED) | |
105 | continue; | |
106 | ||
107 | val = sch56xx_read_virtual_reg(data->addr, | |
108 | SCH5636_REG_TEMP_VAL[i]); | |
109 | if (unlikely(val < 0)) { | |
110 | ret = ERR_PTR(val); | |
111 | goto abort; | |
112 | } | |
113 | data->temp_val[i] = val; | |
114 | ||
115 | val = sch56xx_read_virtual_reg(data->addr, | |
116 | SCH5636_REG_TEMP_CTRL(i)); | |
117 | if (unlikely(val < 0)) { | |
118 | ret = ERR_PTR(val); | |
119 | goto abort; | |
120 | } | |
121 | data->temp_ctrl[i] = val; | |
122 | /* Alarms need to be explicitly write-cleared */ | |
123 | if (val & SCH5636_TEMP_ALARM) { | |
124 | sch56xx_write_virtual_reg(data->addr, | |
125 | SCH5636_REG_TEMP_CTRL(i), val); | |
126 | } | |
127 | } | |
128 | ||
129 | for (i = 0; i < SCH5636_NO_FANS; i++) { | |
130 | if (data->fan_ctrl[i] & SCH5636_FAN_DEACTIVATED) | |
131 | continue; | |
132 | ||
133 | val = sch56xx_read_virtual_reg16(data->addr, | |
134 | SCH5636_REG_FAN_VAL[i]); | |
135 | if (unlikely(val < 0)) { | |
136 | ret = ERR_PTR(val); | |
137 | goto abort; | |
138 | } | |
139 | data->fan_val[i] = val; | |
140 | ||
141 | val = sch56xx_read_virtual_reg(data->addr, | |
142 | SCH5636_REG_FAN_CTRL(i)); | |
143 | if (unlikely(val < 0)) { | |
144 | ret = ERR_PTR(val); | |
145 | goto abort; | |
146 | } | |
147 | data->fan_ctrl[i] = val; | |
148 | /* Alarms need to be explicitly write-cleared */ | |
149 | if (val & SCH5636_FAN_ALARM) { | |
150 | sch56xx_write_virtual_reg(data->addr, | |
151 | SCH5636_REG_FAN_CTRL(i), val); | |
152 | } | |
153 | } | |
154 | ||
155 | data->last_updated = jiffies; | |
156 | data->valid = 1; | |
157 | abort: | |
158 | mutex_unlock(&data->update_lock); | |
159 | return ret; | |
160 | } | |
161 | ||
162 | static int reg_to_rpm(u16 reg) | |
163 | { | |
164 | if (reg == 0) | |
165 | return -EIO; | |
166 | if (reg == 0xffff) | |
167 | return 0; | |
168 | ||
169 | return 5400540 / reg; | |
170 | } | |
171 | ||
172 | static ssize_t show_name(struct device *dev, struct device_attribute *devattr, | |
173 | char *buf) | |
174 | { | |
175 | return snprintf(buf, PAGE_SIZE, "%s\n", DEVNAME); | |
176 | } | |
177 | ||
178 | static ssize_t show_in_value(struct device *dev, struct device_attribute | |
179 | *devattr, char *buf) | |
180 | { | |
181 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
182 | struct sch5636_data *data = sch5636_update_device(dev); | |
183 | int val; | |
184 | ||
185 | if (IS_ERR(data)) | |
186 | return PTR_ERR(data); | |
187 | ||
188 | val = DIV_ROUND_CLOSEST( | |
189 | data->in[attr->index] * SCH5636_REG_IN_FACTORS[attr->index], | |
190 | 255); | |
191 | return snprintf(buf, PAGE_SIZE, "%d\n", val); | |
192 | } | |
193 | ||
194 | static ssize_t show_in_label(struct device *dev, struct device_attribute | |
195 | *devattr, char *buf) | |
196 | { | |
197 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
198 | ||
199 | return snprintf(buf, PAGE_SIZE, "%s\n", | |
200 | SCH5636_IN_LABELS[attr->index]); | |
201 | } | |
202 | ||
203 | static ssize_t show_temp_value(struct device *dev, struct device_attribute | |
204 | *devattr, char *buf) | |
205 | { | |
206 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
207 | struct sch5636_data *data = sch5636_update_device(dev); | |
208 | int val; | |
209 | ||
210 | if (IS_ERR(data)) | |
211 | return PTR_ERR(data); | |
212 | ||
213 | val = (data->temp_val[attr->index] - 64) * 1000; | |
214 | return snprintf(buf, PAGE_SIZE, "%d\n", val); | |
215 | } | |
216 | ||
217 | static ssize_t show_temp_fault(struct device *dev, struct device_attribute | |
218 | *devattr, char *buf) | |
219 | { | |
220 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
221 | struct sch5636_data *data = sch5636_update_device(dev); | |
222 | int val; | |
223 | ||
224 | if (IS_ERR(data)) | |
225 | return PTR_ERR(data); | |
226 | ||
227 | val = (data->temp_ctrl[attr->index] & SCH5636_TEMP_WORKING) ? 0 : 1; | |
228 | return snprintf(buf, PAGE_SIZE, "%d\n", val); | |
229 | } | |
230 | ||
231 | static ssize_t show_temp_alarm(struct device *dev, struct device_attribute | |
232 | *devattr, char *buf) | |
233 | { | |
234 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
235 | struct sch5636_data *data = sch5636_update_device(dev); | |
236 | int val; | |
237 | ||
238 | if (IS_ERR(data)) | |
239 | return PTR_ERR(data); | |
240 | ||
241 | val = (data->temp_ctrl[attr->index] & SCH5636_TEMP_ALARM) ? 1 : 0; | |
242 | return snprintf(buf, PAGE_SIZE, "%d\n", val); | |
243 | } | |
244 | ||
245 | static ssize_t show_fan_value(struct device *dev, struct device_attribute | |
246 | *devattr, char *buf) | |
247 | { | |
248 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
249 | struct sch5636_data *data = sch5636_update_device(dev); | |
250 | int val; | |
251 | ||
252 | if (IS_ERR(data)) | |
253 | return PTR_ERR(data); | |
254 | ||
255 | val = reg_to_rpm(data->fan_val[attr->index]); | |
256 | if (val < 0) | |
257 | return val; | |
258 | ||
259 | return snprintf(buf, PAGE_SIZE, "%d\n", val); | |
260 | } | |
261 | ||
262 | static ssize_t show_fan_fault(struct device *dev, struct device_attribute | |
263 | *devattr, char *buf) | |
264 | { | |
265 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
266 | struct sch5636_data *data = sch5636_update_device(dev); | |
267 | int val; | |
268 | ||
269 | if (IS_ERR(data)) | |
270 | return PTR_ERR(data); | |
271 | ||
272 | val = (data->fan_ctrl[attr->index] & SCH5636_FAN_NOT_PRESENT) ? 1 : 0; | |
273 | return snprintf(buf, PAGE_SIZE, "%d\n", val); | |
274 | } | |
275 | ||
276 | static ssize_t show_fan_alarm(struct device *dev, struct device_attribute | |
277 | *devattr, char *buf) | |
278 | { | |
279 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
280 | struct sch5636_data *data = sch5636_update_device(dev); | |
281 | int val; | |
282 | ||
283 | if (IS_ERR(data)) | |
284 | return PTR_ERR(data); | |
285 | ||
286 | val = (data->fan_ctrl[attr->index] & SCH5636_FAN_ALARM) ? 1 : 0; | |
287 | return snprintf(buf, PAGE_SIZE, "%d\n", val); | |
288 | } | |
289 | ||
290 | static struct sensor_device_attribute sch5636_attr[] = { | |
291 | SENSOR_ATTR(name, 0444, show_name, NULL, 0), | |
292 | SENSOR_ATTR(in0_input, 0444, show_in_value, NULL, 0), | |
293 | SENSOR_ATTR(in0_label, 0444, show_in_label, NULL, 0), | |
294 | SENSOR_ATTR(in1_input, 0444, show_in_value, NULL, 1), | |
295 | SENSOR_ATTR(in1_label, 0444, show_in_label, NULL, 1), | |
296 | SENSOR_ATTR(in2_input, 0444, show_in_value, NULL, 2), | |
297 | SENSOR_ATTR(in2_label, 0444, show_in_label, NULL, 2), | |
298 | SENSOR_ATTR(in3_input, 0444, show_in_value, NULL, 3), | |
299 | SENSOR_ATTR(in3_label, 0444, show_in_label, NULL, 3), | |
300 | SENSOR_ATTR(in4_input, 0444, show_in_value, NULL, 4), | |
301 | SENSOR_ATTR(in4_label, 0444, show_in_label, NULL, 4), | |
302 | }; | |
303 | ||
304 | static struct sensor_device_attribute sch5636_temp_attr[] = { | |
305 | SENSOR_ATTR(temp1_input, 0444, show_temp_value, NULL, 0), | |
306 | SENSOR_ATTR(temp1_fault, 0444, show_temp_fault, NULL, 0), | |
307 | SENSOR_ATTR(temp1_alarm, 0444, show_temp_alarm, NULL, 0), | |
308 | SENSOR_ATTR(temp2_input, 0444, show_temp_value, NULL, 1), | |
309 | SENSOR_ATTR(temp2_fault, 0444, show_temp_fault, NULL, 1), | |
310 | SENSOR_ATTR(temp2_alarm, 0444, show_temp_alarm, NULL, 1), | |
311 | SENSOR_ATTR(temp3_input, 0444, show_temp_value, NULL, 2), | |
312 | SENSOR_ATTR(temp3_fault, 0444, show_temp_fault, NULL, 2), | |
313 | SENSOR_ATTR(temp3_alarm, 0444, show_temp_alarm, NULL, 2), | |
314 | SENSOR_ATTR(temp4_input, 0444, show_temp_value, NULL, 3), | |
315 | SENSOR_ATTR(temp4_fault, 0444, show_temp_fault, NULL, 3), | |
316 | SENSOR_ATTR(temp4_alarm, 0444, show_temp_alarm, NULL, 3), | |
317 | SENSOR_ATTR(temp5_input, 0444, show_temp_value, NULL, 4), | |
318 | SENSOR_ATTR(temp5_fault, 0444, show_temp_fault, NULL, 4), | |
319 | SENSOR_ATTR(temp5_alarm, 0444, show_temp_alarm, NULL, 4), | |
320 | SENSOR_ATTR(temp6_input, 0444, show_temp_value, NULL, 5), | |
321 | SENSOR_ATTR(temp6_fault, 0444, show_temp_fault, NULL, 5), | |
322 | SENSOR_ATTR(temp6_alarm, 0444, show_temp_alarm, NULL, 5), | |
323 | SENSOR_ATTR(temp7_input, 0444, show_temp_value, NULL, 6), | |
324 | SENSOR_ATTR(temp7_fault, 0444, show_temp_fault, NULL, 6), | |
325 | SENSOR_ATTR(temp7_alarm, 0444, show_temp_alarm, NULL, 6), | |
326 | SENSOR_ATTR(temp8_input, 0444, show_temp_value, NULL, 7), | |
327 | SENSOR_ATTR(temp8_fault, 0444, show_temp_fault, NULL, 7), | |
328 | SENSOR_ATTR(temp8_alarm, 0444, show_temp_alarm, NULL, 7), | |
329 | SENSOR_ATTR(temp9_input, 0444, show_temp_value, NULL, 8), | |
330 | SENSOR_ATTR(temp9_fault, 0444, show_temp_fault, NULL, 8), | |
331 | SENSOR_ATTR(temp9_alarm, 0444, show_temp_alarm, NULL, 8), | |
332 | SENSOR_ATTR(temp10_input, 0444, show_temp_value, NULL, 9), | |
333 | SENSOR_ATTR(temp10_fault, 0444, show_temp_fault, NULL, 9), | |
334 | SENSOR_ATTR(temp10_alarm, 0444, show_temp_alarm, NULL, 9), | |
335 | SENSOR_ATTR(temp11_input, 0444, show_temp_value, NULL, 10), | |
336 | SENSOR_ATTR(temp11_fault, 0444, show_temp_fault, NULL, 10), | |
337 | SENSOR_ATTR(temp11_alarm, 0444, show_temp_alarm, NULL, 10), | |
338 | SENSOR_ATTR(temp12_input, 0444, show_temp_value, NULL, 11), | |
339 | SENSOR_ATTR(temp12_fault, 0444, show_temp_fault, NULL, 11), | |
340 | SENSOR_ATTR(temp12_alarm, 0444, show_temp_alarm, NULL, 11), | |
341 | SENSOR_ATTR(temp13_input, 0444, show_temp_value, NULL, 12), | |
342 | SENSOR_ATTR(temp13_fault, 0444, show_temp_fault, NULL, 12), | |
343 | SENSOR_ATTR(temp13_alarm, 0444, show_temp_alarm, NULL, 12), | |
344 | SENSOR_ATTR(temp14_input, 0444, show_temp_value, NULL, 13), | |
345 | SENSOR_ATTR(temp14_fault, 0444, show_temp_fault, NULL, 13), | |
346 | SENSOR_ATTR(temp14_alarm, 0444, show_temp_alarm, NULL, 13), | |
347 | SENSOR_ATTR(temp15_input, 0444, show_temp_value, NULL, 14), | |
348 | SENSOR_ATTR(temp15_fault, 0444, show_temp_fault, NULL, 14), | |
349 | SENSOR_ATTR(temp15_alarm, 0444, show_temp_alarm, NULL, 14), | |
350 | SENSOR_ATTR(temp16_input, 0444, show_temp_value, NULL, 15), | |
351 | SENSOR_ATTR(temp16_fault, 0444, show_temp_fault, NULL, 15), | |
352 | SENSOR_ATTR(temp16_alarm, 0444, show_temp_alarm, NULL, 15), | |
353 | }; | |
354 | ||
355 | static struct sensor_device_attribute sch5636_fan_attr[] = { | |
356 | SENSOR_ATTR(fan1_input, 0444, show_fan_value, NULL, 0), | |
357 | SENSOR_ATTR(fan1_fault, 0444, show_fan_fault, NULL, 0), | |
358 | SENSOR_ATTR(fan1_alarm, 0444, show_fan_alarm, NULL, 0), | |
359 | SENSOR_ATTR(fan2_input, 0444, show_fan_value, NULL, 1), | |
360 | SENSOR_ATTR(fan2_fault, 0444, show_fan_fault, NULL, 1), | |
361 | SENSOR_ATTR(fan2_alarm, 0444, show_fan_alarm, NULL, 1), | |
362 | SENSOR_ATTR(fan3_input, 0444, show_fan_value, NULL, 2), | |
363 | SENSOR_ATTR(fan3_fault, 0444, show_fan_fault, NULL, 2), | |
364 | SENSOR_ATTR(fan3_alarm, 0444, show_fan_alarm, NULL, 2), | |
365 | SENSOR_ATTR(fan4_input, 0444, show_fan_value, NULL, 3), | |
366 | SENSOR_ATTR(fan4_fault, 0444, show_fan_fault, NULL, 3), | |
367 | SENSOR_ATTR(fan4_alarm, 0444, show_fan_alarm, NULL, 3), | |
368 | SENSOR_ATTR(fan5_input, 0444, show_fan_value, NULL, 4), | |
369 | SENSOR_ATTR(fan5_fault, 0444, show_fan_fault, NULL, 4), | |
370 | SENSOR_ATTR(fan5_alarm, 0444, show_fan_alarm, NULL, 4), | |
371 | SENSOR_ATTR(fan6_input, 0444, show_fan_value, NULL, 5), | |
372 | SENSOR_ATTR(fan6_fault, 0444, show_fan_fault, NULL, 5), | |
373 | SENSOR_ATTR(fan6_alarm, 0444, show_fan_alarm, NULL, 5), | |
374 | SENSOR_ATTR(fan7_input, 0444, show_fan_value, NULL, 6), | |
375 | SENSOR_ATTR(fan7_fault, 0444, show_fan_fault, NULL, 6), | |
376 | SENSOR_ATTR(fan7_alarm, 0444, show_fan_alarm, NULL, 6), | |
377 | SENSOR_ATTR(fan8_input, 0444, show_fan_value, NULL, 7), | |
378 | SENSOR_ATTR(fan8_fault, 0444, show_fan_fault, NULL, 7), | |
379 | SENSOR_ATTR(fan8_alarm, 0444, show_fan_alarm, NULL, 7), | |
380 | }; | |
381 | ||
382 | static int sch5636_remove(struct platform_device *pdev) | |
383 | { | |
384 | struct sch5636_data *data = platform_get_drvdata(pdev); | |
385 | int i; | |
386 | ||
387 | if (data->hwmon_dev) | |
388 | hwmon_device_unregister(data->hwmon_dev); | |
389 | ||
390 | for (i = 0; i < ARRAY_SIZE(sch5636_attr); i++) | |
391 | device_remove_file(&pdev->dev, &sch5636_attr[i].dev_attr); | |
392 | ||
393 | for (i = 0; i < SCH5636_NO_TEMPS * 3; i++) | |
394 | device_remove_file(&pdev->dev, | |
395 | &sch5636_temp_attr[i].dev_attr); | |
396 | ||
397 | for (i = 0; i < SCH5636_NO_FANS * 3; i++) | |
398 | device_remove_file(&pdev->dev, | |
399 | &sch5636_fan_attr[i].dev_attr); | |
400 | ||
401 | platform_set_drvdata(pdev, NULL); | |
402 | kfree(data); | |
403 | ||
404 | return 0; | |
405 | } | |
406 | ||
407 | static int __devinit sch5636_probe(struct platform_device *pdev) | |
408 | { | |
409 | struct sch5636_data *data; | |
410 | int i, err, val, revision[2]; | |
411 | char id[4]; | |
412 | ||
413 | data = kzalloc(sizeof(struct sch5636_data), GFP_KERNEL); | |
414 | if (!data) | |
415 | return -ENOMEM; | |
416 | ||
417 | data->addr = platform_get_resource(pdev, IORESOURCE_IO, 0)->start; | |
418 | mutex_init(&data->update_lock); | |
419 | platform_set_drvdata(pdev, data); | |
420 | ||
421 | for (i = 0; i < 3; i++) { | |
422 | val = sch56xx_read_virtual_reg(data->addr, | |
423 | SCH5636_REG_FUJITSU_ID + i); | |
424 | if (val < 0) { | |
425 | pr_err("Could not read Fujitsu id byte at %#x\n", | |
426 | SCH5636_REG_FUJITSU_ID + i); | |
427 | err = val; | |
428 | goto error; | |
429 | } | |
430 | id[i] = val; | |
431 | } | |
432 | id[i] = '\0'; | |
433 | ||
434 | if (strcmp(id, "THS")) { | |
435 | pr_err("Unknown Fujitsu id: %02x%02x%02x\n", | |
436 | id[0], id[1], id[2]); | |
437 | err = -ENODEV; | |
438 | goto error; | |
439 | } | |
440 | ||
441 | for (i = 0; i < 2; i++) { | |
442 | val = sch56xx_read_virtual_reg(data->addr, | |
443 | SCH5636_REG_FUJITSU_REV + i); | |
444 | if (val < 0) { | |
445 | err = val; | |
446 | goto error; | |
447 | } | |
448 | revision[i] = val; | |
449 | } | |
450 | pr_info("Found %s chip at %#hx, revison: %d.%02d\n", DEVNAME, | |
451 | data->addr, revision[0], revision[1]); | |
452 | ||
453 | /* Read all temp + fan ctrl registers to determine which are active */ | |
454 | for (i = 0; i < SCH5636_NO_TEMPS; i++) { | |
455 | val = sch56xx_read_virtual_reg(data->addr, | |
456 | SCH5636_REG_TEMP_CTRL(i)); | |
457 | if (unlikely(val < 0)) { | |
458 | err = val; | |
459 | goto error; | |
460 | } | |
461 | data->temp_ctrl[i] = val; | |
462 | } | |
463 | ||
464 | for (i = 0; i < SCH5636_NO_FANS; i++) { | |
465 | val = sch56xx_read_virtual_reg(data->addr, | |
466 | SCH5636_REG_FAN_CTRL(i)); | |
467 | if (unlikely(val < 0)) { | |
468 | err = val; | |
469 | goto error; | |
470 | } | |
471 | data->fan_ctrl[i] = val; | |
472 | } | |
473 | ||
474 | for (i = 0; i < ARRAY_SIZE(sch5636_attr); i++) { | |
475 | err = device_create_file(&pdev->dev, | |
476 | &sch5636_attr[i].dev_attr); | |
477 | if (err) | |
478 | goto error; | |
479 | } | |
480 | ||
481 | for (i = 0; i < (SCH5636_NO_TEMPS * 3); i++) { | |
482 | if (data->temp_ctrl[i/3] & SCH5636_TEMP_DEACTIVATED) | |
483 | continue; | |
484 | ||
485 | err = device_create_file(&pdev->dev, | |
486 | &sch5636_temp_attr[i].dev_attr); | |
487 | if (err) | |
488 | goto error; | |
489 | } | |
490 | ||
491 | for (i = 0; i < (SCH5636_NO_FANS * 3); i++) { | |
492 | if (data->fan_ctrl[i/3] & SCH5636_FAN_DEACTIVATED) | |
493 | continue; | |
494 | ||
495 | err = device_create_file(&pdev->dev, | |
496 | &sch5636_fan_attr[i].dev_attr); | |
497 | if (err) | |
498 | goto error; | |
499 | } | |
500 | ||
501 | data->hwmon_dev = hwmon_device_register(&pdev->dev); | |
502 | if (IS_ERR(data->hwmon_dev)) { | |
503 | err = PTR_ERR(data->hwmon_dev); | |
504 | data->hwmon_dev = NULL; | |
505 | goto error; | |
506 | } | |
507 | ||
508 | return 0; | |
509 | ||
510 | error: | |
511 | sch5636_remove(pdev); | |
512 | return err; | |
513 | } | |
514 | ||
515 | static struct platform_driver sch5636_driver = { | |
516 | .driver = { | |
517 | .owner = THIS_MODULE, | |
518 | .name = DRVNAME, | |
519 | }, | |
520 | .probe = sch5636_probe, | |
521 | .remove = sch5636_remove, | |
522 | }; | |
523 | ||
524 | static int __init sch5636_init(void) | |
525 | { | |
526 | return platform_driver_register(&sch5636_driver); | |
527 | } | |
528 | ||
529 | static void __exit sch5636_exit(void) | |
530 | { | |
531 | platform_driver_unregister(&sch5636_driver); | |
532 | } | |
533 | ||
534 | MODULE_DESCRIPTION("SMSC SCH5636 Hardware Monitoring Driver"); | |
535 | MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>"); | |
536 | MODULE_LICENSE("GPL"); | |
537 | ||
538 | module_init(sch5636_init); | |
539 | module_exit(sch5636_exit); |