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6800c3d0 RM |
1 | /* |
2 | w83793.c - Linux kernel driver for hardware monitoring | |
3 | Copyright (C) 2006 Winbond Electronics Corp. | |
4 | Yuan Mu | |
5 | Rudolf Marek <r.marek@assembler.cz> | |
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 - version 2. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA | |
19 | 02110-1301 USA. | |
20 | */ | |
21 | ||
22 | /* | |
23 | Supports following chips: | |
24 | ||
25 | Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA | |
26 | w83793 10 12 8 6 0x7b 0x5ca3 yes no | |
27 | */ | |
28 | ||
29 | #include <linux/module.h> | |
30 | #include <linux/init.h> | |
31 | #include <linux/slab.h> | |
32 | #include <linux/i2c.h> | |
33 | #include <linux/hwmon.h> | |
34 | #include <linux/hwmon-vid.h> | |
35 | #include <linux/hwmon-sysfs.h> | |
36 | #include <linux/err.h> | |
37 | #include <linux/mutex.h> | |
38 | ||
39 | /* Addresses to scan */ | |
40 | static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f, I2C_CLIENT_END }; | |
41 | ||
42 | /* Insmod parameters */ | |
43 | I2C_CLIENT_INSMOD_1(w83793); | |
44 | I2C_CLIENT_MODULE_PARM(force_subclients, "List of subclient addresses: " | |
45 | "{bus, clientaddr, subclientaddr1, subclientaddr2}"); | |
46 | ||
47 | static int reset; | |
48 | module_param(reset, bool, 0); | |
49 | MODULE_PARM_DESC(reset, "Set to 1 to reset chip, not recommended"); | |
50 | ||
51 | /* | |
52 | Address 0x00, 0x0d, 0x0e, 0x0f in all three banks are reserved | |
53 | as ID, Bank Select registers | |
54 | */ | |
55 | #define W83793_REG_BANKSEL 0x00 | |
56 | #define W83793_REG_VENDORID 0x0d | |
57 | #define W83793_REG_CHIPID 0x0e | |
58 | #define W83793_REG_DEVICEID 0x0f | |
59 | ||
60 | #define W83793_REG_CONFIG 0x40 | |
61 | #define W83793_REG_MFC 0x58 | |
62 | #define W83793_REG_FANIN_CTRL 0x5c | |
63 | #define W83793_REG_FANIN_SEL 0x5d | |
64 | #define W83793_REG_I2C_ADDR 0x0b | |
65 | #define W83793_REG_I2C_SUBADDR 0x0c | |
66 | #define W83793_REG_VID_INA 0x05 | |
67 | #define W83793_REG_VID_INB 0x06 | |
68 | #define W83793_REG_VID_LATCHA 0x07 | |
69 | #define W83793_REG_VID_LATCHB 0x08 | |
70 | #define W83793_REG_VID_CTRL 0x59 | |
71 | ||
72 | static u16 W83793_REG_TEMP_MODE[2] = { 0x5e, 0x5f }; | |
73 | ||
74 | #define TEMP_READ 0 | |
75 | #define TEMP_CRIT 1 | |
76 | #define TEMP_CRIT_HYST 2 | |
77 | #define TEMP_WARN 3 | |
78 | #define TEMP_WARN_HYST 4 | |
79 | /* only crit and crit_hyst affect real-time alarm status | |
80 | current crit crit_hyst warn warn_hyst */ | |
81 | static u16 W83793_REG_TEMP[][5] = { | |
82 | {0x1c, 0x78, 0x79, 0x7a, 0x7b}, | |
83 | {0x1d, 0x7c, 0x7d, 0x7e, 0x7f}, | |
84 | {0x1e, 0x80, 0x81, 0x82, 0x83}, | |
85 | {0x1f, 0x84, 0x85, 0x86, 0x87}, | |
86 | {0x20, 0x88, 0x89, 0x8a, 0x8b}, | |
87 | {0x21, 0x8c, 0x8d, 0x8e, 0x8f}, | |
88 | }; | |
89 | ||
90 | #define W83793_REG_TEMP_LOW_BITS 0x22 | |
91 | ||
92 | #define W83793_REG_BEEP(index) (0x53 + (index)) | |
93 | #define W83793_REG_ALARM(index) (0x4b + (index)) | |
94 | ||
95 | #define W83793_REG_CLR_CHASSIS 0x4a /* SMI MASK4 */ | |
96 | #define W83793_REG_IRQ_CTRL 0x50 | |
97 | #define W83793_REG_OVT_CTRL 0x51 | |
98 | #define W83793_REG_OVT_BEEP 0x52 | |
99 | ||
100 | #define IN_READ 0 | |
101 | #define IN_MAX 1 | |
102 | #define IN_LOW 2 | |
103 | static const u16 W83793_REG_IN[][3] = { | |
104 | /* Current, High, Low */ | |
105 | {0x10, 0x60, 0x61}, /* Vcore A */ | |
106 | {0x11, 0x62, 0x63}, /* Vcore B */ | |
107 | {0x12, 0x64, 0x65}, /* Vtt */ | |
108 | {0x14, 0x6a, 0x6b}, /* VSEN1 */ | |
109 | {0x15, 0x6c, 0x6d}, /* VSEN2 */ | |
110 | {0x16, 0x6e, 0x6f}, /* +3VSEN */ | |
111 | {0x17, 0x70, 0x71}, /* +12VSEN */ | |
112 | {0x18, 0x72, 0x73}, /* 5VDD */ | |
113 | {0x19, 0x74, 0x75}, /* 5VSB */ | |
114 | {0x1a, 0x76, 0x77}, /* VBAT */ | |
115 | }; | |
116 | ||
117 | /* Low Bits of Vcore A/B Vtt Read/High/Low */ | |
118 | static const u16 W83793_REG_IN_LOW_BITS[] = { 0x1b, 0x68, 0x69 }; | |
119 | static u8 scale_in[] = { 2, 2, 2, 16, 16, 16, 8, 24, 24, 16 }; | |
120 | ||
121 | #define W83793_REG_FAN(index) (0x23 + 2 * (index)) /* High byte */ | |
122 | #define W83793_REG_FAN_MIN(index) (0x90 + 2 * (index)) /* High byte */ | |
123 | ||
124 | #define W83793_REG_PWM_DEFAULT 0xb2 | |
125 | #define W83793_REG_PWM_ENABLE 0x207 | |
126 | #define W83793_REG_PWM_UPTIME 0xc3 /* Unit in 0.1 second */ | |
127 | #define W83793_REG_PWM_DOWNTIME 0xc4 /* Unit in 0.1 second */ | |
128 | #define W83793_REG_TEMP_CRITICAL 0xc5 | |
129 | ||
130 | #define PWM_DUTY 0 | |
131 | #define PWM_START 1 | |
132 | #define PWM_NONSTOP 2 | |
133 | #define W83793_REG_PWM(index, nr) (((nr) == 0 ? 0xb3 : \ | |
134 | (nr) == 1 ? 0x220 : 0x218) + (index)) | |
135 | ||
136 | /* bit field, fan1 is bit0, fan2 is bit1 ... */ | |
137 | #define W83793_REG_TEMP_FAN_MAP(index) (0x201 + (index)) | |
138 | #define W83793_REG_TEMP_TOL(index) (0x208 + (index)) | |
139 | #define W83793_REG_TEMP_CRUISE(index) (0x210 + (index)) | |
140 | #define W83793_REG_PWM_STOP_TIME(index) (0x228 + (index)) | |
141 | #define W83793_REG_SF2_TEMP(index, nr) (0x230 + ((index) << 4) + (nr)) | |
142 | #define W83793_REG_SF2_PWM(index, nr) (0x238 + ((index) << 4) + (nr)) | |
143 | ||
144 | static inline unsigned long FAN_FROM_REG(u16 val) | |
145 | { | |
146 | if ((val >= 0xfff) || (val == 0)) | |
147 | return 0; | |
148 | return (1350000UL / val); | |
149 | } | |
150 | ||
151 | static inline u16 FAN_TO_REG(long rpm) | |
152 | { | |
153 | if (rpm <= 0) | |
154 | return 0x0fff; | |
155 | return SENSORS_LIMIT((1350000 + (rpm >> 1)) / rpm, 1, 0xffe); | |
156 | } | |
157 | ||
158 | static inline unsigned long TIME_FROM_REG(u8 reg) | |
159 | { | |
160 | return (reg * 100); | |
161 | } | |
162 | ||
163 | static inline u8 TIME_TO_REG(unsigned long val) | |
164 | { | |
165 | return SENSORS_LIMIT((val + 50) / 100, 0, 0xff); | |
166 | } | |
167 | ||
168 | static inline long TEMP_FROM_REG(s8 reg) | |
169 | { | |
170 | return (reg * 1000); | |
171 | } | |
172 | ||
173 | static inline s8 TEMP_TO_REG(long val, s8 min, s8 max) | |
174 | { | |
175 | return SENSORS_LIMIT((val + (val < 0 ? -500 : 500)) / 1000, min, max); | |
176 | } | |
177 | ||
178 | struct w83793_data { | |
179 | struct i2c_client client; | |
180 | struct i2c_client *lm75[2]; | |
181 | struct class_device *class_dev; | |
182 | struct mutex update_lock; | |
183 | char valid; /* !=0 if following fields are valid */ | |
184 | unsigned long last_updated; /* In jiffies */ | |
185 | unsigned long last_nonvolatile; /* In jiffies, last time we update the | |
186 | nonvolatile registers */ | |
187 | ||
188 | u8 bank; | |
189 | u8 vrm; | |
190 | u8 vid[2]; | |
191 | u8 in[10][3]; /* Register value, read/high/low */ | |
192 | u8 in_low_bits[3]; /* Additional resolution for VCore A/B Vtt */ | |
193 | ||
194 | u16 has_fan; /* Only fan1- fan5 has own pins */ | |
195 | u16 fan[12]; /* Register value combine */ | |
196 | u16 fan_min[12]; /* Register value combine */ | |
197 | ||
198 | s8 temp[6][5]; /* current, crit, crit_hyst,warn, warn_hyst */ | |
199 | u8 temp_low_bits; /* Additional resolution TD1-TD4 */ | |
200 | u8 temp_mode[2]; /* byte 0: Temp D1-D4 mode each has 2 bits | |
201 | byte 1: Temp R1,R2 mode, each has 1 bit */ | |
202 | u8 temp_critical; /* If reached all fan will be at full speed */ | |
203 | u8 temp_fan_map[6]; /* Temp controls which pwm fan, bit field */ | |
204 | ||
205 | u8 has_pwm; | |
206 | u8 pwm_enable; /* Register value, each Temp has 1 bit */ | |
207 | u8 pwm_uptime; /* Register value */ | |
208 | u8 pwm_downtime; /* Register value */ | |
209 | u8 pwm_default; /* All fan default pwm, next poweron valid */ | |
210 | u8 pwm[8][3]; /* Register value */ | |
211 | u8 pwm_stop_time[8]; | |
212 | u8 temp_cruise[6]; | |
213 | ||
214 | u8 alarms[5]; /* realtime status registers */ | |
215 | u8 beeps[5]; | |
216 | u8 beep_enable; | |
217 | u8 tolerance[3]; /* Temp tolerance(Smart Fan I/II) */ | |
218 | u8 sf2_pwm[6][7]; /* Smart FanII: Fan duty cycle */ | |
219 | u8 sf2_temp[6][7]; /* Smart FanII: Temp level point */ | |
220 | }; | |
221 | ||
222 | static u8 w83793_read_value(struct i2c_client *client, u16 reg); | |
223 | static int w83793_write_value(struct i2c_client *client, u16 reg, u8 value); | |
224 | static int w83793_attach_adapter(struct i2c_adapter *adapter); | |
225 | static int w83793_detect(struct i2c_adapter *adapter, int address, int kind); | |
226 | static int w83793_detach_client(struct i2c_client *client); | |
227 | static void w83793_init_client(struct i2c_client *client); | |
228 | static void w83793_update_nonvolatile(struct device *dev); | |
229 | static struct w83793_data *w83793_update_device(struct device *dev); | |
230 | ||
231 | static struct i2c_driver w83793_driver = { | |
232 | .driver = { | |
233 | .name = "w83793", | |
234 | }, | |
235 | .attach_adapter = w83793_attach_adapter, | |
236 | .detach_client = w83793_detach_client, | |
237 | }; | |
238 | ||
239 | static ssize_t | |
240 | show_vrm(struct device *dev, struct device_attribute *attr, char *buf) | |
241 | { | |
242 | struct i2c_client *client = to_i2c_client(dev); | |
243 | struct w83793_data *data = i2c_get_clientdata(client); | |
244 | ||
245 | return sprintf(buf, "%d\n", data->vrm); | |
246 | } | |
247 | ||
248 | static ssize_t | |
249 | show_vid(struct device *dev, struct device_attribute *attr, char *buf) | |
250 | { | |
251 | struct w83793_data *data = w83793_update_device(dev); | |
252 | struct sensor_device_attribute_2 *sensor_attr = | |
253 | to_sensor_dev_attr_2(attr); | |
254 | int index = sensor_attr->index; | |
255 | ||
256 | return sprintf(buf, "%d\n", vid_from_reg(data->vid[index], data->vrm)); | |
257 | } | |
258 | ||
259 | static ssize_t | |
260 | store_vrm(struct device *dev, struct device_attribute *attr, | |
261 | const char *buf, size_t count) | |
262 | { | |
263 | struct i2c_client *client = to_i2c_client(dev); | |
264 | struct w83793_data *data = i2c_get_clientdata(client); | |
265 | ||
266 | data->vrm = simple_strtoul(buf, NULL, 10); | |
267 | return count; | |
268 | } | |
269 | ||
270 | #define ALARM_STATUS 0 | |
271 | #define BEEP_ENABLE 1 | |
272 | static ssize_t | |
273 | show_alarm_beep(struct device *dev, struct device_attribute *attr, char *buf) | |
274 | { | |
275 | struct w83793_data *data = w83793_update_device(dev); | |
276 | struct sensor_device_attribute_2 *sensor_attr = | |
277 | to_sensor_dev_attr_2(attr); | |
278 | int nr = sensor_attr->nr; | |
279 | int index = sensor_attr->index >> 3; | |
280 | int bit = sensor_attr->index & 0x07; | |
281 | u8 val; | |
282 | ||
283 | if (ALARM_STATUS == nr) { | |
284 | val = (data->alarms[index] >> (bit)) & 1; | |
285 | } else { /* BEEP_ENABLE */ | |
286 | val = (data->beeps[index] >> (bit)) & 1; | |
287 | } | |
288 | ||
289 | return sprintf(buf, "%u\n", val); | |
290 | } | |
291 | ||
292 | static ssize_t | |
293 | store_beep(struct device *dev, struct device_attribute *attr, | |
294 | const char *buf, size_t count) | |
295 | { | |
296 | struct i2c_client *client = to_i2c_client(dev); | |
297 | struct w83793_data *data = i2c_get_clientdata(client); | |
298 | struct sensor_device_attribute_2 *sensor_attr = | |
299 | to_sensor_dev_attr_2(attr); | |
300 | int index = sensor_attr->index >> 3; | |
301 | int shift = sensor_attr->index & 0x07; | |
302 | u8 beep_bit = 1 << shift; | |
303 | u8 val; | |
304 | ||
305 | val = simple_strtoul(buf, NULL, 10); | |
306 | if (val != 0 && val != 1) | |
307 | return -EINVAL; | |
308 | ||
309 | mutex_lock(&data->update_lock); | |
310 | data->beeps[index] = w83793_read_value(client, W83793_REG_BEEP(index)); | |
311 | data->beeps[index] &= ~beep_bit; | |
312 | data->beeps[index] |= val << shift; | |
313 | w83793_write_value(client, W83793_REG_BEEP(index), data->beeps[index]); | |
314 | mutex_unlock(&data->update_lock); | |
315 | ||
316 | return count; | |
317 | } | |
318 | ||
319 | static ssize_t | |
320 | show_beep_enable(struct device *dev, struct device_attribute *attr, char *buf) | |
321 | { | |
322 | struct w83793_data *data = w83793_update_device(dev); | |
323 | return sprintf(buf, "%u\n", (data->beep_enable >> 1) & 0x01); | |
324 | } | |
325 | ||
326 | static ssize_t | |
327 | store_beep_enable(struct device *dev, struct device_attribute *attr, | |
328 | const char *buf, size_t count) | |
329 | { | |
330 | struct i2c_client *client = to_i2c_client(dev); | |
331 | struct w83793_data *data = i2c_get_clientdata(client); | |
332 | u8 val = simple_strtoul(buf, NULL, 10); | |
333 | ||
334 | if (val != 0 && val != 1) | |
335 | return -EINVAL; | |
336 | ||
337 | mutex_lock(&data->update_lock); | |
338 | data->beep_enable = w83793_read_value(client, W83793_REG_OVT_BEEP) | |
339 | & 0xfd; | |
340 | data->beep_enable |= val << 1; | |
341 | w83793_write_value(client, W83793_REG_OVT_BEEP, data->beep_enable); | |
342 | mutex_unlock(&data->update_lock); | |
343 | ||
344 | return count; | |
345 | } | |
346 | ||
347 | /* Write any value to clear chassis alarm */ | |
348 | static ssize_t | |
349 | store_chassis_clear(struct device *dev, | |
350 | struct device_attribute *attr, const char *buf, | |
351 | size_t count) | |
352 | { | |
353 | struct i2c_client *client = to_i2c_client(dev); | |
354 | struct w83793_data *data = i2c_get_clientdata(client); | |
355 | u8 val; | |
356 | ||
357 | mutex_lock(&data->update_lock); | |
358 | val = w83793_read_value(client, W83793_REG_CLR_CHASSIS); | |
359 | val |= 0x80; | |
360 | w83793_write_value(client, W83793_REG_CLR_CHASSIS, val); | |
361 | mutex_unlock(&data->update_lock); | |
362 | return count; | |
363 | } | |
364 | ||
365 | #define FAN_INPUT 0 | |
366 | #define FAN_MIN 1 | |
367 | static ssize_t | |
368 | show_fan(struct device *dev, struct device_attribute *attr, char *buf) | |
369 | { | |
370 | struct sensor_device_attribute_2 *sensor_attr = | |
371 | to_sensor_dev_attr_2(attr); | |
372 | int nr = sensor_attr->nr; | |
373 | int index = sensor_attr->index; | |
374 | struct w83793_data *data = w83793_update_device(dev); | |
375 | u16 val; | |
376 | ||
377 | if (FAN_INPUT == nr) { | |
378 | val = data->fan[index] & 0x0fff; | |
379 | } else { | |
380 | val = data->fan_min[index] & 0x0fff; | |
381 | } | |
382 | ||
383 | return sprintf(buf, "%lu\n", FAN_FROM_REG(val)); | |
384 | } | |
385 | ||
386 | static ssize_t | |
387 | store_fan_min(struct device *dev, struct device_attribute *attr, | |
388 | const char *buf, size_t count) | |
389 | { | |
390 | struct sensor_device_attribute_2 *sensor_attr = | |
391 | to_sensor_dev_attr_2(attr); | |
392 | int index = sensor_attr->index; | |
393 | struct i2c_client *client = to_i2c_client(dev); | |
394 | struct w83793_data *data = i2c_get_clientdata(client); | |
395 | u16 val = FAN_TO_REG(simple_strtoul(buf, NULL, 10)); | |
396 | ||
397 | mutex_lock(&data->update_lock); | |
398 | data->fan_min[index] = val; | |
399 | w83793_write_value(client, W83793_REG_FAN_MIN(index), | |
400 | (val >> 8) & 0xff); | |
401 | w83793_write_value(client, W83793_REG_FAN_MIN(index) + 1, val & 0xff); | |
402 | mutex_unlock(&data->update_lock); | |
403 | ||
404 | return count; | |
405 | } | |
406 | ||
407 | #define PWM_DUTY 0 | |
408 | #define PWM_START 1 | |
409 | #define PWM_NONSTOP 2 | |
410 | #define PWM_STOP_TIME 3 | |
411 | static ssize_t | |
412 | show_pwm(struct device *dev, struct device_attribute *attr, char *buf) | |
413 | { | |
414 | struct sensor_device_attribute_2 *sensor_attr = | |
415 | to_sensor_dev_attr_2(attr); | |
416 | struct w83793_data *data = w83793_update_device(dev); | |
417 | u16 val; | |
418 | int nr = sensor_attr->nr; | |
419 | int index = sensor_attr->index; | |
420 | ||
421 | if (PWM_STOP_TIME == nr) | |
422 | val = TIME_FROM_REG(data->pwm_stop_time[index]); | |
423 | else | |
424 | val = (data->pwm[index][nr] & 0x3f) << 2; | |
425 | ||
426 | return sprintf(buf, "%d\n", val); | |
427 | } | |
428 | ||
429 | static ssize_t | |
430 | store_pwm(struct device *dev, struct device_attribute *attr, | |
431 | const char *buf, size_t count) | |
432 | { | |
433 | struct i2c_client *client = to_i2c_client(dev); | |
434 | struct w83793_data *data = i2c_get_clientdata(client); | |
435 | struct sensor_device_attribute_2 *sensor_attr = | |
436 | to_sensor_dev_attr_2(attr); | |
437 | int nr = sensor_attr->nr; | |
438 | int index = sensor_attr->index; | |
439 | u8 val; | |
440 | ||
441 | mutex_lock(&data->update_lock); | |
442 | if (PWM_STOP_TIME == nr) { | |
443 | val = TIME_TO_REG(simple_strtoul(buf, NULL, 10)); | |
444 | data->pwm_stop_time[index] = val; | |
445 | w83793_write_value(client, W83793_REG_PWM_STOP_TIME(index), | |
446 | val); | |
447 | } else { | |
448 | val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 0, 0xff) | |
449 | >> 2; | |
450 | data->pwm[index][nr] = | |
451 | w83793_read_value(client, W83793_REG_PWM(index, nr)) & 0xc0; | |
452 | data->pwm[index][nr] |= val; | |
453 | w83793_write_value(client, W83793_REG_PWM(index, nr), | |
454 | data->pwm[index][nr]); | |
455 | } | |
456 | ||
457 | mutex_unlock(&data->update_lock); | |
458 | return count; | |
459 | } | |
460 | ||
461 | static ssize_t | |
462 | show_temp(struct device *dev, struct device_attribute *attr, char *buf) | |
463 | { | |
464 | struct sensor_device_attribute_2 *sensor_attr = | |
465 | to_sensor_dev_attr_2(attr); | |
466 | int nr = sensor_attr->nr; | |
467 | int index = sensor_attr->index; | |
468 | struct w83793_data *data = w83793_update_device(dev); | |
469 | long temp = TEMP_FROM_REG(data->temp[index][nr]); | |
470 | ||
471 | if (TEMP_READ == nr && index < 4) { /* Only TD1-TD4 have low bits */ | |
472 | int low = ((data->temp_low_bits >> (index * 2)) & 0x03) * 250; | |
473 | temp += temp > 0 ? low : -low; | |
474 | } | |
475 | return sprintf(buf, "%ld\n", temp); | |
476 | } | |
477 | ||
478 | static ssize_t | |
479 | store_temp(struct device *dev, struct device_attribute *attr, | |
480 | const char *buf, size_t count) | |
481 | { | |
482 | struct sensor_device_attribute_2 *sensor_attr = | |
483 | to_sensor_dev_attr_2(attr); | |
484 | int nr = sensor_attr->nr; | |
485 | int index = sensor_attr->index; | |
486 | struct i2c_client *client = to_i2c_client(dev); | |
487 | struct w83793_data *data = i2c_get_clientdata(client); | |
488 | long tmp = simple_strtol(buf, NULL, 10); | |
489 | ||
490 | mutex_lock(&data->update_lock); | |
491 | data->temp[index][nr] = TEMP_TO_REG(tmp, -128, 127); | |
492 | w83793_write_value(client, W83793_REG_TEMP[index][nr], | |
493 | data->temp[index][nr]); | |
494 | mutex_unlock(&data->update_lock); | |
495 | return count; | |
496 | } | |
497 | ||
498 | /* | |
499 | TD1-TD4 | |
500 | each has 4 mode:(2 bits) | |
501 | 0: Stop monitor | |
502 | 1: Use internal temp sensor(default) | |
503 | 2: Use sensor in AMD CPU and get result by AMDSI | |
504 | 3: Use sensor in Intel CPU and get result by PECI | |
505 | ||
506 | TR1-TR2 | |
507 | each has 2 mode:(1 bit) | |
508 | 0: Disable temp sensor monitor | |
509 | 1: To enable temp sensors monitor | |
510 | */ | |
511 | ||
512 | /* 0 disable, 5 AMDSI, 6 PECI */ | |
513 | static u8 TO_TEMP_MODE[] = { 0, 0, 5, 6 }; | |
514 | ||
515 | static ssize_t | |
516 | show_temp_mode(struct device *dev, struct device_attribute *attr, char *buf) | |
517 | { | |
518 | struct w83793_data *data = w83793_update_device(dev); | |
519 | struct sensor_device_attribute_2 *sensor_attr = | |
520 | to_sensor_dev_attr_2(attr); | |
521 | int index = sensor_attr->index; | |
522 | u8 mask = (index < 4) ? 0x03 : 0x01; | |
523 | u8 shift = (index < 4) ? (2 * index) : (index - 4); | |
524 | u8 tmp; | |
525 | index = (index < 4) ? 0 : 1; | |
526 | ||
527 | tmp = (data->temp_mode[index] >> shift) & mask; | |
528 | ||
529 | /* for the internal sensor, found out if diode or thermistor */ | |
530 | if (tmp == 1) { | |
531 | tmp = index == 0 ? 3 : 4; | |
532 | } else { | |
533 | tmp = TO_TEMP_MODE[tmp]; | |
534 | } | |
535 | ||
536 | return sprintf(buf, "%d\n", tmp); | |
537 | } | |
538 | ||
539 | static ssize_t | |
540 | store_temp_mode(struct device *dev, struct device_attribute *attr, | |
541 | const char *buf, size_t count) | |
542 | { | |
543 | struct i2c_client *client = to_i2c_client(dev); | |
544 | struct w83793_data *data = i2c_get_clientdata(client); | |
545 | struct sensor_device_attribute_2 *sensor_attr = | |
546 | to_sensor_dev_attr_2(attr); | |
547 | int index = sensor_attr->index; | |
548 | u8 mask = (index < 4) ? 0x03 : 0x01; | |
549 | u8 shift = (index < 4) ? (2 * index) : (index - 4); | |
550 | u8 val = simple_strtoul(buf, NULL, 10); | |
551 | ||
552 | /* transform the sysfs interface values into table above */ | |
553 | if ((val == 5 || val == 6) && (index < 4)) { | |
554 | val -= 3; | |
555 | } else if ((val == 3 && index < 4) | |
556 | || (val == 4 && index >= 4) | |
557 | || val == 0) { | |
558 | /* transform diode or thermistor into internal enable */ | |
559 | val = !!val; | |
560 | } else { | |
561 | return -EINVAL; | |
562 | } | |
563 | ||
564 | index = (index < 4) ? 0 : 1; | |
565 | mutex_lock(&data->update_lock); | |
566 | data->temp_mode[index] = | |
567 | w83793_read_value(client, W83793_REG_TEMP_MODE[index]); | |
568 | data->temp_mode[index] &= ~(mask << shift); | |
569 | data->temp_mode[index] |= val << shift; | |
570 | w83793_write_value(client, W83793_REG_TEMP_MODE[index], | |
571 | data->temp_mode[index]); | |
572 | mutex_unlock(&data->update_lock); | |
573 | ||
574 | return count; | |
575 | } | |
576 | ||
577 | #define SETUP_PWM_DEFAULT 0 | |
578 | #define SETUP_PWM_UPTIME 1 /* Unit in 0.1s */ | |
579 | #define SETUP_PWM_DOWNTIME 2 /* Unit in 0.1s */ | |
580 | #define SETUP_TEMP_CRITICAL 3 | |
581 | static ssize_t | |
582 | show_sf_setup(struct device *dev, struct device_attribute *attr, char *buf) | |
583 | { | |
584 | struct sensor_device_attribute_2 *sensor_attr = | |
585 | to_sensor_dev_attr_2(attr); | |
586 | int nr = sensor_attr->nr; | |
587 | struct w83793_data *data = w83793_update_device(dev); | |
588 | u32 val = 0; | |
589 | ||
590 | if (SETUP_PWM_DEFAULT == nr) { | |
591 | val = (data->pwm_default & 0x3f) << 2; | |
592 | } else if (SETUP_PWM_UPTIME == nr) { | |
593 | val = TIME_FROM_REG(data->pwm_uptime); | |
594 | } else if (SETUP_PWM_DOWNTIME == nr) { | |
595 | val = TIME_FROM_REG(data->pwm_downtime); | |
596 | } else if (SETUP_TEMP_CRITICAL == nr) { | |
597 | val = TEMP_FROM_REG(data->temp_critical & 0x7f); | |
598 | } | |
599 | ||
600 | return sprintf(buf, "%d\n", val); | |
601 | } | |
602 | ||
603 | static ssize_t | |
604 | store_sf_setup(struct device *dev, struct device_attribute *attr, | |
605 | const char *buf, size_t count) | |
606 | { | |
607 | struct sensor_device_attribute_2 *sensor_attr = | |
608 | to_sensor_dev_attr_2(attr); | |
609 | int nr = sensor_attr->nr; | |
610 | struct i2c_client *client = to_i2c_client(dev); | |
611 | struct w83793_data *data = i2c_get_clientdata(client); | |
612 | ||
613 | mutex_lock(&data->update_lock); | |
614 | if (SETUP_PWM_DEFAULT == nr) { | |
615 | data->pwm_default = | |
616 | w83793_read_value(client, W83793_REG_PWM_DEFAULT) & 0xc0; | |
617 | data->pwm_default |= SENSORS_LIMIT(simple_strtoul(buf, NULL, | |
618 | 10), | |
619 | 0, 0xff) >> 2; | |
620 | w83793_write_value(client, W83793_REG_PWM_DEFAULT, | |
621 | data->pwm_default); | |
622 | } else if (SETUP_PWM_UPTIME == nr) { | |
623 | data->pwm_uptime = TIME_TO_REG(simple_strtoul(buf, NULL, 10)); | |
624 | data->pwm_uptime += data->pwm_uptime == 0 ? 1 : 0; | |
625 | w83793_write_value(client, W83793_REG_PWM_UPTIME, | |
626 | data->pwm_uptime); | |
627 | } else if (SETUP_PWM_DOWNTIME == nr) { | |
628 | data->pwm_downtime = TIME_TO_REG(simple_strtoul(buf, NULL, 10)); | |
629 | data->pwm_downtime += data->pwm_downtime == 0 ? 1 : 0; | |
630 | w83793_write_value(client, W83793_REG_PWM_DOWNTIME, | |
631 | data->pwm_downtime); | |
632 | } else { /* SETUP_TEMP_CRITICAL */ | |
633 | data->temp_critical = | |
634 | w83793_read_value(client, W83793_REG_TEMP_CRITICAL) & 0x80; | |
635 | data->temp_critical |= TEMP_TO_REG(simple_strtol(buf, NULL, 10), | |
636 | 0, 0x7f); | |
637 | w83793_write_value(client, W83793_REG_TEMP_CRITICAL, | |
638 | data->temp_critical); | |
639 | } | |
640 | ||
641 | mutex_unlock(&data->update_lock); | |
642 | return count; | |
643 | } | |
644 | ||
645 | /* | |
646 | Temp SmartFan control | |
647 | TEMP_FAN_MAP | |
648 | Temp channel control which pwm fan, bitfield, bit 0 indicate pwm1... | |
649 | It's possible two or more temp channels control the same fan, w83793 | |
650 | always prefers to pick the most critical request and applies it to | |
651 | the related Fan. | |
652 | It's possible one fan is not in any mapping of 6 temp channels, this | |
653 | means the fan is manual mode | |
654 | ||
655 | TEMP_PWM_ENABLE | |
656 | Each temp channel has its own SmartFan mode, and temp channel | |
657 | control fans that are set by TEMP_FAN_MAP | |
658 | 0: SmartFanII mode | |
659 | 1: Thermal Cruise Mode | |
660 | ||
661 | TEMP_CRUISE | |
662 | Target temperature in thermal cruise mode, w83793 will try to turn | |
663 | fan speed to keep the temperature of target device around this | |
664 | temperature. | |
665 | ||
666 | TEMP_TOLERANCE | |
667 | If Temp higher or lower than target with this tolerance, w83793 | |
668 | will take actions to speed up or slow down the fan to keep the | |
669 | temperature within the tolerance range. | |
670 | */ | |
671 | ||
672 | #define TEMP_FAN_MAP 0 | |
673 | #define TEMP_PWM_ENABLE 1 | |
674 | #define TEMP_CRUISE 2 | |
675 | #define TEMP_TOLERANCE 3 | |
676 | static ssize_t | |
677 | show_sf_ctrl(struct device *dev, struct device_attribute *attr, char *buf) | |
678 | { | |
679 | struct sensor_device_attribute_2 *sensor_attr = | |
680 | to_sensor_dev_attr_2(attr); | |
681 | int nr = sensor_attr->nr; | |
682 | int index = sensor_attr->index; | |
683 | struct w83793_data *data = w83793_update_device(dev); | |
684 | u32 val; | |
685 | ||
686 | if (TEMP_FAN_MAP == nr) { | |
687 | val = data->temp_fan_map[index]; | |
688 | } else if (TEMP_PWM_ENABLE == nr) { | |
689 | /* +2 to transfrom into 2 and 3 to conform with sysfs intf */ | |
690 | val = ((data->pwm_enable >> index) & 0x01) + 2; | |
691 | } else if (TEMP_CRUISE == nr) { | |
692 | val = TEMP_FROM_REG(data->temp_cruise[index] & 0x7f); | |
693 | } else { /* TEMP_TOLERANCE */ | |
694 | val = data->tolerance[index >> 1] >> ((index & 0x01) ? 4 : 0); | |
695 | val = TEMP_FROM_REG(val & 0x0f); | |
696 | } | |
697 | return sprintf(buf, "%d\n", val); | |
698 | } | |
699 | ||
700 | static ssize_t | |
701 | store_sf_ctrl(struct device *dev, struct device_attribute *attr, | |
702 | const char *buf, size_t count) | |
703 | { | |
704 | struct sensor_device_attribute_2 *sensor_attr = | |
705 | to_sensor_dev_attr_2(attr); | |
706 | int nr = sensor_attr->nr; | |
707 | int index = sensor_attr->index; | |
708 | struct i2c_client *client = to_i2c_client(dev); | |
709 | struct w83793_data *data = i2c_get_clientdata(client); | |
710 | u32 val; | |
711 | ||
712 | mutex_lock(&data->update_lock); | |
713 | if (TEMP_FAN_MAP == nr) { | |
714 | val = simple_strtoul(buf, NULL, 10) & 0xff; | |
715 | w83793_write_value(client, W83793_REG_TEMP_FAN_MAP(index), val); | |
716 | data->temp_fan_map[index] = val; | |
717 | } else if (TEMP_PWM_ENABLE == nr) { | |
718 | val = simple_strtoul(buf, NULL, 10); | |
719 | if (2 == val || 3 == val) { | |
720 | data->pwm_enable = | |
721 | w83793_read_value(client, W83793_REG_PWM_ENABLE); | |
722 | if (val - 2) | |
723 | data->pwm_enable |= 1 << index; | |
724 | else | |
725 | data->pwm_enable &= ~(1 << index); | |
726 | w83793_write_value(client, W83793_REG_PWM_ENABLE, | |
727 | data->pwm_enable); | |
728 | } else { | |
729 | mutex_unlock(&data->update_lock); | |
730 | return -EINVAL; | |
731 | } | |
732 | } else if (TEMP_CRUISE == nr) { | |
733 | data->temp_cruise[index] = | |
734 | w83793_read_value(client, W83793_REG_TEMP_CRUISE(index)); | |
735 | val = TEMP_TO_REG(simple_strtol(buf, NULL, 10), 0, 0x7f); | |
736 | data->temp_cruise[index] &= 0x80; | |
737 | data->temp_cruise[index] |= val; | |
738 | ||
739 | w83793_write_value(client, W83793_REG_TEMP_CRUISE(index), | |
740 | data->temp_cruise[index]); | |
741 | } else { /* TEMP_TOLERANCE */ | |
742 | int i = index >> 1; | |
743 | u8 shift = (index & 0x01) ? 4 : 0; | |
744 | data->tolerance[i] = | |
745 | w83793_read_value(client, W83793_REG_TEMP_TOL(i)); | |
746 | ||
747 | val = TEMP_TO_REG(simple_strtol(buf, NULL, 10), 0, 0x0f); | |
748 | data->tolerance[i] &= ~(0x0f << shift); | |
749 | data->tolerance[i] |= val << shift; | |
750 | w83793_write_value(client, W83793_REG_TEMP_TOL(i), | |
751 | data->tolerance[i]); | |
752 | } | |
753 | ||
754 | mutex_unlock(&data->update_lock); | |
755 | return count; | |
756 | } | |
757 | ||
758 | static ssize_t | |
759 | show_sf2_pwm(struct device *dev, struct device_attribute *attr, char *buf) | |
760 | { | |
761 | struct sensor_device_attribute_2 *sensor_attr = | |
762 | to_sensor_dev_attr_2(attr); | |
763 | int nr = sensor_attr->nr; | |
764 | int index = sensor_attr->index; | |
765 | struct w83793_data *data = w83793_update_device(dev); | |
766 | ||
767 | return sprintf(buf, "%d\n", (data->sf2_pwm[index][nr] & 0x3f) << 2); | |
768 | } | |
769 | ||
770 | static ssize_t | |
771 | store_sf2_pwm(struct device *dev, struct device_attribute *attr, | |
772 | const char *buf, size_t count) | |
773 | { | |
774 | struct i2c_client *client = to_i2c_client(dev); | |
775 | struct w83793_data *data = i2c_get_clientdata(client); | |
776 | struct sensor_device_attribute_2 *sensor_attr = | |
777 | to_sensor_dev_attr_2(attr); | |
778 | int nr = sensor_attr->nr; | |
779 | int index = sensor_attr->index; | |
780 | u8 val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 0, 0xff) >> 2; | |
781 | ||
782 | mutex_lock(&data->update_lock); | |
783 | data->sf2_pwm[index][nr] = | |
784 | w83793_read_value(client, W83793_REG_SF2_PWM(index, nr)) & 0xc0; | |
785 | data->sf2_pwm[index][nr] |= val; | |
786 | w83793_write_value(client, W83793_REG_SF2_PWM(index, nr), | |
787 | data->sf2_pwm[index][nr]); | |
788 | mutex_unlock(&data->update_lock); | |
789 | return count; | |
790 | } | |
791 | ||
792 | static ssize_t | |
793 | show_sf2_temp(struct device *dev, struct device_attribute *attr, char *buf) | |
794 | { | |
795 | struct sensor_device_attribute_2 *sensor_attr = | |
796 | to_sensor_dev_attr_2(attr); | |
797 | int nr = sensor_attr->nr; | |
798 | int index = sensor_attr->index; | |
799 | struct w83793_data *data = w83793_update_device(dev); | |
800 | ||
801 | return sprintf(buf, "%ld\n", | |
802 | TEMP_FROM_REG(data->sf2_temp[index][nr] & 0x7f)); | |
803 | } | |
804 | ||
805 | static ssize_t | |
806 | store_sf2_temp(struct device *dev, struct device_attribute *attr, | |
807 | const char *buf, size_t count) | |
808 | { | |
809 | struct i2c_client *client = to_i2c_client(dev); | |
810 | struct w83793_data *data = i2c_get_clientdata(client); | |
811 | struct sensor_device_attribute_2 *sensor_attr = | |
812 | to_sensor_dev_attr_2(attr); | |
813 | int nr = sensor_attr->nr; | |
814 | int index = sensor_attr->index; | |
815 | u8 val = TEMP_TO_REG(simple_strtol(buf, NULL, 10), 0, 0x7f); | |
816 | ||
817 | mutex_lock(&data->update_lock); | |
818 | data->sf2_temp[index][nr] = | |
819 | w83793_read_value(client, W83793_REG_SF2_TEMP(index, nr)) & 0x80; | |
820 | data->sf2_temp[index][nr] |= val; | |
821 | w83793_write_value(client, W83793_REG_SF2_TEMP(index, nr), | |
822 | data->sf2_temp[index][nr]); | |
823 | mutex_unlock(&data->update_lock); | |
824 | return count; | |
825 | } | |
826 | ||
827 | /* only Vcore A/B and Vtt have additional 2 bits precision */ | |
828 | static ssize_t | |
829 | show_in(struct device *dev, struct device_attribute *attr, char *buf) | |
830 | { | |
831 | struct sensor_device_attribute_2 *sensor_attr = | |
832 | to_sensor_dev_attr_2(attr); | |
833 | int nr = sensor_attr->nr; | |
834 | int index = sensor_attr->index; | |
835 | struct w83793_data *data = w83793_update_device(dev); | |
836 | u16 val = data->in[index][nr]; | |
837 | ||
838 | if (index < 3) { | |
839 | val <<= 2; | |
840 | val += (data->in_low_bits[nr] >> (index * 2)) & 0x3; | |
841 | } | |
842 | return sprintf(buf, "%d\n", val * scale_in[index]); | |
843 | } | |
844 | ||
845 | static ssize_t | |
846 | store_in(struct device *dev, struct device_attribute *attr, | |
847 | const char *buf, size_t count) | |
848 | { | |
849 | struct sensor_device_attribute_2 *sensor_attr = | |
850 | to_sensor_dev_attr_2(attr); | |
851 | int nr = sensor_attr->nr; | |
852 | int index = sensor_attr->index; | |
853 | struct i2c_client *client = to_i2c_client(dev); | |
854 | struct w83793_data *data = i2c_get_clientdata(client); | |
855 | u32 val; | |
856 | ||
857 | val = | |
858 | (simple_strtoul(buf, NULL, 10) + | |
859 | scale_in[index] / 2) / scale_in[index]; | |
860 | mutex_lock(&data->update_lock); | |
861 | if (index > 2) { | |
862 | val = SENSORS_LIMIT(val, 0, 255); | |
863 | } else { | |
864 | val = SENSORS_LIMIT(val, 0, 0x3FF); | |
865 | data->in_low_bits[nr] = | |
866 | w83793_read_value(client, W83793_REG_IN_LOW_BITS[nr]); | |
867 | data->in_low_bits[nr] &= ~(0x03 << (2 * index)); | |
868 | data->in_low_bits[nr] |= (val & 0x03) << (2 * index); | |
869 | w83793_write_value(client, W83793_REG_IN_LOW_BITS[nr], | |
870 | data->in_low_bits[nr]); | |
871 | val >>= 2; | |
872 | } | |
873 | data->in[index][nr] = val; | |
874 | w83793_write_value(client, W83793_REG_IN[index][nr], | |
875 | data->in[index][nr]); | |
876 | mutex_unlock(&data->update_lock); | |
877 | return count; | |
878 | } | |
879 | ||
880 | #define NOT_USED -1 | |
881 | ||
882 | #define SENSOR_ATTR_IN(index) \ | |
883 | SENSOR_ATTR_2(in##index##_input, S_IRUGO, show_in, NULL, \ | |
884 | IN_READ, index), \ | |
885 | SENSOR_ATTR_2(in##index##_max, S_IRUGO | S_IWUSR, show_in, \ | |
886 | store_in, IN_MAX, index), \ | |
887 | SENSOR_ATTR_2(in##index##_min, S_IRUGO | S_IWUSR, show_in, \ | |
888 | store_in, IN_LOW, index), \ | |
889 | SENSOR_ATTR_2(in##index##_alarm, S_IRUGO, show_alarm_beep, \ | |
890 | NULL, ALARM_STATUS, index + ((index > 2) ? 1 : 0)), \ | |
891 | SENSOR_ATTR_2(in##index##_beep, S_IWUSR | S_IRUGO, \ | |
892 | show_alarm_beep, store_beep, BEEP_ENABLE, \ | |
893 | index + ((index > 2) ? 1 : 0)) | |
894 | ||
895 | #define SENSOR_ATTR_FAN(index) \ | |
896 | SENSOR_ATTR_2(fan##index##_alarm, S_IRUGO, show_alarm_beep, \ | |
897 | NULL, ALARM_STATUS, index + 17), \ | |
898 | SENSOR_ATTR_2(fan##index##_beep, S_IWUSR | S_IRUGO, \ | |
899 | show_alarm_beep, store_beep, BEEP_ENABLE, index + 17), \ | |
900 | SENSOR_ATTR_2(fan##index##_input, S_IRUGO, show_fan, \ | |
901 | NULL, FAN_INPUT, index - 1), \ | |
902 | SENSOR_ATTR_2(fan##index##_min, S_IWUSR | S_IRUGO, \ | |
903 | show_fan, store_fan_min, FAN_MIN, index - 1) | |
904 | ||
905 | #define SENSOR_ATTR_PWM(index) \ | |
906 | SENSOR_ATTR_2(pwm##index, S_IWUSR | S_IRUGO, show_pwm, \ | |
907 | store_pwm, PWM_DUTY, index - 1), \ | |
908 | SENSOR_ATTR_2(pwm##index##_nonstop, S_IWUSR | S_IRUGO, \ | |
909 | show_pwm, store_pwm, PWM_NONSTOP, index - 1), \ | |
910 | SENSOR_ATTR_2(pwm##index##_start, S_IWUSR | S_IRUGO, \ | |
911 | show_pwm, store_pwm, PWM_START, index - 1), \ | |
912 | SENSOR_ATTR_2(pwm##index##_stop_time, S_IWUSR | S_IRUGO, \ | |
913 | show_pwm, store_pwm, PWM_STOP_TIME, index - 1) | |
914 | ||
915 | #define SENSOR_ATTR_TEMP(index) \ | |
916 | SENSOR_ATTR_2(temp##index##_type, S_IRUGO | S_IWUSR, \ | |
917 | show_temp_mode, store_temp_mode, NOT_USED, index - 1), \ | |
918 | SENSOR_ATTR_2(temp##index##_input, S_IRUGO, show_temp, \ | |
919 | NULL, TEMP_READ, index - 1), \ | |
920 | SENSOR_ATTR_2(temp##index##_max, S_IRUGO | S_IWUSR, show_temp, \ | |
921 | store_temp, TEMP_CRIT, index - 1), \ | |
922 | SENSOR_ATTR_2(temp##index##_max_hyst, S_IRUGO | S_IWUSR, \ | |
923 | show_temp, store_temp, TEMP_CRIT_HYST, index - 1), \ | |
924 | SENSOR_ATTR_2(temp##index##_warn, S_IRUGO | S_IWUSR, show_temp, \ | |
925 | store_temp, TEMP_WARN, index - 1), \ | |
926 | SENSOR_ATTR_2(temp##index##_warn_hyst, S_IRUGO | S_IWUSR, \ | |
927 | show_temp, store_temp, TEMP_WARN_HYST, index - 1), \ | |
928 | SENSOR_ATTR_2(temp##index##_alarm, S_IRUGO, \ | |
929 | show_alarm_beep, NULL, ALARM_STATUS, index + 11), \ | |
930 | SENSOR_ATTR_2(temp##index##_beep, S_IWUSR | S_IRUGO, \ | |
931 | show_alarm_beep, store_beep, BEEP_ENABLE, index + 11), \ | |
932 | SENSOR_ATTR_2(temp##index##_auto_channels_pwm, \ | |
933 | S_IRUGO | S_IWUSR, show_sf_ctrl, store_sf_ctrl, \ | |
934 | TEMP_FAN_MAP, index - 1), \ | |
935 | SENSOR_ATTR_2(temp##index##_pwm_enable, S_IWUSR | S_IRUGO, \ | |
936 | show_sf_ctrl, store_sf_ctrl, TEMP_PWM_ENABLE, \ | |
937 | index - 1), \ | |
938 | SENSOR_ATTR_2(thermal_cruise##index, S_IRUGO | S_IWUSR, \ | |
939 | show_sf_ctrl, store_sf_ctrl, TEMP_CRUISE, index - 1), \ | |
940 | SENSOR_ATTR_2(tolerance##index, S_IRUGO | S_IWUSR, show_sf_ctrl,\ | |
941 | store_sf_ctrl, TEMP_TOLERANCE, index - 1), \ | |
942 | SENSOR_ATTR_2(temp##index##_auto_point1_pwm, S_IRUGO | S_IWUSR, \ | |
943 | show_sf2_pwm, store_sf2_pwm, 0, index - 1), \ | |
944 | SENSOR_ATTR_2(temp##index##_auto_point2_pwm, S_IRUGO | S_IWUSR, \ | |
945 | show_sf2_pwm, store_sf2_pwm, 1, index - 1), \ | |
946 | SENSOR_ATTR_2(temp##index##_auto_point3_pwm, S_IRUGO | S_IWUSR, \ | |
947 | show_sf2_pwm, store_sf2_pwm, 2, index - 1), \ | |
948 | SENSOR_ATTR_2(temp##index##_auto_point4_pwm, S_IRUGO | S_IWUSR, \ | |
949 | show_sf2_pwm, store_sf2_pwm, 3, index - 1), \ | |
950 | SENSOR_ATTR_2(temp##index##_auto_point5_pwm, S_IRUGO | S_IWUSR, \ | |
951 | show_sf2_pwm, store_sf2_pwm, 4, index - 1), \ | |
952 | SENSOR_ATTR_2(temp##index##_auto_point6_pwm, S_IRUGO | S_IWUSR, \ | |
953 | show_sf2_pwm, store_sf2_pwm, 5, index - 1), \ | |
954 | SENSOR_ATTR_2(temp##index##_auto_point7_pwm, S_IRUGO | S_IWUSR, \ | |
955 | show_sf2_pwm, store_sf2_pwm, 6, index - 1), \ | |
956 | SENSOR_ATTR_2(temp##index##_auto_point1_temp, S_IRUGO | S_IWUSR,\ | |
957 | show_sf2_temp, store_sf2_temp, 0, index - 1), \ | |
958 | SENSOR_ATTR_2(temp##index##_auto_point2_temp, S_IRUGO | S_IWUSR,\ | |
959 | show_sf2_temp, store_sf2_temp, 1, index - 1), \ | |
960 | SENSOR_ATTR_2(temp##index##_auto_point3_temp, S_IRUGO | S_IWUSR,\ | |
961 | show_sf2_temp, store_sf2_temp, 2, index - 1), \ | |
962 | SENSOR_ATTR_2(temp##index##_auto_point4_temp, S_IRUGO | S_IWUSR,\ | |
963 | show_sf2_temp, store_sf2_temp, 3, index - 1), \ | |
964 | SENSOR_ATTR_2(temp##index##_auto_point5_temp, S_IRUGO | S_IWUSR,\ | |
965 | show_sf2_temp, store_sf2_temp, 4, index - 1), \ | |
966 | SENSOR_ATTR_2(temp##index##_auto_point6_temp, S_IRUGO | S_IWUSR,\ | |
967 | show_sf2_temp, store_sf2_temp, 5, index - 1), \ | |
968 | SENSOR_ATTR_2(temp##index##_auto_point7_temp, S_IRUGO | S_IWUSR,\ | |
969 | show_sf2_temp, store_sf2_temp, 6, index - 1) | |
970 | ||
971 | static struct sensor_device_attribute_2 w83793_sensor_attr_2[] = { | |
972 | SENSOR_ATTR_IN(0), | |
973 | SENSOR_ATTR_IN(1), | |
974 | SENSOR_ATTR_IN(2), | |
975 | SENSOR_ATTR_IN(3), | |
976 | SENSOR_ATTR_IN(4), | |
977 | SENSOR_ATTR_IN(5), | |
978 | SENSOR_ATTR_IN(6), | |
979 | SENSOR_ATTR_IN(7), | |
980 | SENSOR_ATTR_IN(8), | |
981 | SENSOR_ATTR_IN(9), | |
982 | SENSOR_ATTR_TEMP(1), | |
983 | SENSOR_ATTR_TEMP(2), | |
984 | SENSOR_ATTR_TEMP(3), | |
985 | SENSOR_ATTR_TEMP(4), | |
986 | SENSOR_ATTR_TEMP(5), | |
987 | SENSOR_ATTR_TEMP(6), | |
988 | SENSOR_ATTR_FAN(1), | |
989 | SENSOR_ATTR_FAN(2), | |
990 | SENSOR_ATTR_FAN(3), | |
991 | SENSOR_ATTR_FAN(4), | |
992 | SENSOR_ATTR_FAN(5), | |
993 | SENSOR_ATTR_PWM(1), | |
994 | SENSOR_ATTR_PWM(2), | |
995 | SENSOR_ATTR_PWM(3), | |
996 | }; | |
997 | ||
998 | /* Fan6-Fan12 */ | |
999 | static struct sensor_device_attribute_2 w83793_left_fan[] = { | |
1000 | SENSOR_ATTR_FAN(6), | |
1001 | SENSOR_ATTR_FAN(7), | |
1002 | SENSOR_ATTR_FAN(8), | |
1003 | SENSOR_ATTR_FAN(9), | |
1004 | SENSOR_ATTR_FAN(10), | |
1005 | SENSOR_ATTR_FAN(11), | |
1006 | SENSOR_ATTR_FAN(12), | |
1007 | }; | |
1008 | ||
1009 | /* Pwm4-Pwm8 */ | |
1010 | static struct sensor_device_attribute_2 w83793_left_pwm[] = { | |
1011 | SENSOR_ATTR_PWM(4), | |
1012 | SENSOR_ATTR_PWM(5), | |
1013 | SENSOR_ATTR_PWM(6), | |
1014 | SENSOR_ATTR_PWM(7), | |
1015 | SENSOR_ATTR_PWM(8), | |
1016 | }; | |
1017 | ||
1018 | static struct sensor_device_attribute_2 sda_single_files[] = { | |
1019 | SENSOR_ATTR_2(cpu0_vid, S_IRUGO, show_vid, NULL, NOT_USED, 0), | |
1020 | SENSOR_ATTR_2(cpu1_vid, S_IRUGO, show_vid, NULL, NOT_USED, 1), | |
1021 | SENSOR_ATTR_2(vrm, S_IWUSR | S_IRUGO, show_vrm, store_vrm, | |
1022 | NOT_USED, NOT_USED), | |
1023 | SENSOR_ATTR_2(chassis, S_IWUSR | S_IRUGO, show_alarm_beep, | |
1024 | store_chassis_clear, ALARM_STATUS, 30), | |
1025 | SENSOR_ATTR_2(beep_enable, S_IWUSR | S_IRUGO, show_beep_enable, | |
1026 | store_beep_enable, NOT_USED, NOT_USED), | |
1027 | SENSOR_ATTR_2(pwm_default, S_IWUSR | S_IRUGO, show_sf_setup, | |
1028 | store_sf_setup, SETUP_PWM_DEFAULT, NOT_USED), | |
1029 | SENSOR_ATTR_2(pwm_uptime, S_IWUSR | S_IRUGO, show_sf_setup, | |
1030 | store_sf_setup, SETUP_PWM_UPTIME, NOT_USED), | |
1031 | SENSOR_ATTR_2(pwm_downtime, S_IWUSR | S_IRUGO, show_sf_setup, | |
1032 | store_sf_setup, SETUP_PWM_DOWNTIME, NOT_USED), | |
1033 | SENSOR_ATTR_2(temp_critical, S_IWUSR | S_IRUGO, show_sf_setup, | |
1034 | store_sf_setup, SETUP_TEMP_CRITICAL, NOT_USED), | |
1035 | }; | |
1036 | ||
1037 | static void w83793_init_client(struct i2c_client *client) | |
1038 | { | |
1039 | if (reset) { | |
1040 | w83793_write_value(client, W83793_REG_CONFIG, 0x80); | |
1041 | } | |
1042 | ||
1043 | /* Start monitoring */ | |
1044 | w83793_write_value(client, W83793_REG_CONFIG, | |
1045 | w83793_read_value(client, W83793_REG_CONFIG) | 0x01); | |
1046 | ||
1047 | } | |
1048 | ||
1049 | static int w83793_attach_adapter(struct i2c_adapter *adapter) | |
1050 | { | |
1051 | if (!(adapter->class & I2C_CLASS_HWMON)) | |
1052 | return 0; | |
1053 | return i2c_probe(adapter, &addr_data, w83793_detect); | |
1054 | } | |
1055 | ||
1056 | static int w83793_detach_client(struct i2c_client *client) | |
1057 | { | |
1058 | struct w83793_data *data = i2c_get_clientdata(client); | |
1059 | struct device *dev = &client->dev; | |
1060 | int err, i; | |
1061 | ||
1062 | /* main client */ | |
1063 | if (data) { | |
1064 | hwmon_device_unregister(data->class_dev); | |
1065 | ||
1066 | for (i = 0; i < ARRAY_SIZE(w83793_sensor_attr_2); i++) | |
1067 | device_remove_file(dev, | |
1068 | &w83793_sensor_attr_2[i].dev_attr); | |
1069 | ||
1070 | for (i = 0; i < ARRAY_SIZE(sda_single_files); i++) | |
1071 | device_remove_file(dev, &sda_single_files[i].dev_attr); | |
1072 | ||
1073 | for (i = 0; i < ARRAY_SIZE(w83793_left_fan); i++) | |
1074 | device_remove_file(dev, &w83793_left_fan[i].dev_attr); | |
1075 | ||
1076 | for (i = 0; i < ARRAY_SIZE(w83793_left_pwm); i++) | |
1077 | device_remove_file(dev, &w83793_left_pwm[i].dev_attr); | |
1078 | } | |
1079 | ||
1080 | if ((err = i2c_detach_client(client))) | |
1081 | return err; | |
1082 | ||
1083 | /* main client */ | |
1084 | if (data) | |
1085 | kfree(data); | |
1086 | /* subclient */ | |
1087 | else | |
1088 | kfree(client); | |
1089 | ||
1090 | return 0; | |
1091 | } | |
1092 | ||
1093 | static int | |
1094 | w83793_create_subclient(struct i2c_adapter *adapter, | |
1095 | struct i2c_client *client, int addr, | |
1096 | struct i2c_client **sub_cli) | |
1097 | { | |
1098 | int err = 0; | |
1099 | struct i2c_client *sub_client; | |
1100 | ||
1101 | (*sub_cli) = sub_client = | |
1102 | kzalloc(sizeof(struct i2c_client), GFP_KERNEL); | |
1103 | if (!(sub_client)) { | |
1104 | return -ENOMEM; | |
1105 | } | |
1106 | sub_client->addr = 0x48 + addr; | |
1107 | i2c_set_clientdata(sub_client, NULL); | |
1108 | sub_client->adapter = adapter; | |
1109 | sub_client->driver = &w83793_driver; | |
1110 | strlcpy(sub_client->name, "w83793 subclient", I2C_NAME_SIZE); | |
1111 | if ((err = i2c_attach_client(sub_client))) { | |
1112 | dev_err(&client->dev, "subclient registration " | |
1113 | "at address 0x%x failed\n", sub_client->addr); | |
1114 | kfree(sub_client); | |
1115 | } | |
1116 | return err; | |
1117 | } | |
1118 | ||
1119 | static int | |
1120 | w83793_detect_subclients(struct i2c_adapter *adapter, int address, | |
1121 | int kind, struct i2c_client *client) | |
1122 | { | |
1123 | int i, id, err; | |
1124 | u8 tmp; | |
1125 | struct w83793_data *data = i2c_get_clientdata(client); | |
1126 | ||
1127 | id = i2c_adapter_id(adapter); | |
1128 | if (force_subclients[0] == id && force_subclients[1] == address) { | |
1129 | for (i = 2; i <= 3; i++) { | |
1130 | if (force_subclients[i] < 0x48 | |
1131 | || force_subclients[i] > 0x4f) { | |
1132 | dev_err(&client->dev, | |
1133 | "invalid subclient " | |
1134 | "address %d; must be 0x48-0x4f\n", | |
1135 | force_subclients[i]); | |
1136 | err = -EINVAL; | |
1137 | goto ERROR_SC_0; | |
1138 | } | |
1139 | } | |
1140 | w83793_write_value(client, W83793_REG_I2C_SUBADDR, | |
1141 | (force_subclients[2] & 0x07) | | |
1142 | ((force_subclients[3] & 0x07) << 4)); | |
1143 | } | |
1144 | ||
1145 | tmp = w83793_read_value(client, W83793_REG_I2C_SUBADDR); | |
1146 | if (!(tmp & 0x08)) { | |
1147 | err = | |
1148 | w83793_create_subclient(adapter, client, tmp & 0x7, | |
1149 | &data->lm75[0]); | |
1150 | if (err < 0) | |
1151 | goto ERROR_SC_0; | |
1152 | } | |
1153 | if (!(tmp & 0x80)) { | |
1154 | if ((data->lm75[0] != NULL) | |
1155 | && ((tmp & 0x7) == ((tmp >> 4) & 0x7))) { | |
1156 | dev_err(&client->dev, | |
1157 | "duplicate addresses 0x%x, " | |
1158 | "use force_subclients\n", data->lm75[0]->addr); | |
1159 | err = -ENODEV; | |
1160 | goto ERROR_SC_1; | |
1161 | } | |
1162 | err = w83793_create_subclient(adapter, client, | |
1163 | (tmp >> 4) & 0x7, &data->lm75[1]); | |
1164 | if (err < 0) | |
1165 | goto ERROR_SC_1; | |
1166 | } | |
1167 | ||
1168 | return 0; | |
1169 | ||
1170 | /* Undo inits in case of errors */ | |
1171 | ||
1172 | ERROR_SC_1: | |
1173 | if (data->lm75[0] != NULL) { | |
1174 | i2c_detach_client(data->lm75[0]); | |
1175 | kfree(data->lm75[0]); | |
1176 | } | |
1177 | ERROR_SC_0: | |
1178 | return err; | |
1179 | } | |
1180 | ||
1181 | static int w83793_detect(struct i2c_adapter *adapter, int address, int kind) | |
1182 | { | |
1183 | int i; | |
1184 | u8 tmp, val; | |
1185 | struct i2c_client *client; | |
1186 | struct device *dev; | |
1187 | struct w83793_data *data; | |
1188 | int files_fan = ARRAY_SIZE(w83793_left_fan) / 7; | |
1189 | int files_pwm = ARRAY_SIZE(w83793_left_pwm) / 5; | |
1190 | int err = 0; | |
1191 | ||
1192 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { | |
1193 | goto exit; | |
1194 | } | |
1195 | ||
1196 | /* OK. For now, we presume we have a valid client. We now create the | |
1197 | client structure, even though we cannot fill it completely yet. | |
1198 | But it allows us to access w83793_{read,write}_value. */ | |
1199 | ||
1200 | if (!(data = kzalloc(sizeof(struct w83793_data), GFP_KERNEL))) { | |
1201 | err = -ENOMEM; | |
1202 | goto exit; | |
1203 | } | |
1204 | ||
1205 | client = &data->client; | |
1206 | dev = &client->dev; | |
1207 | i2c_set_clientdata(client, data); | |
1208 | client->addr = address; | |
1209 | client->adapter = adapter; | |
1210 | client->driver = &w83793_driver; | |
1211 | ||
1212 | data->bank = i2c_smbus_read_byte_data(client, W83793_REG_BANKSEL); | |
1213 | ||
1214 | /* Now, we do the remaining detection. */ | |
1215 | if (kind < 0) { | |
1216 | tmp = data->bank & 0x80 ? 0x5c : 0xa3; | |
1217 | /* Check Winbond vendor ID */ | |
1218 | if (tmp != i2c_smbus_read_byte_data(client, | |
1219 | W83793_REG_VENDORID)) { | |
1220 | pr_debug("w83793: Detection failed at check " | |
1221 | "vendor id\n"); | |
1222 | err = -ENODEV; | |
1223 | goto free_mem; | |
1224 | } | |
1225 | ||
1226 | /* If Winbond chip, address of chip and W83793_REG_I2C_ADDR | |
1227 | should match */ | |
1228 | if ((data->bank & 0x07) == 0 | |
1229 | && i2c_smbus_read_byte_data(client, W83793_REG_I2C_ADDR) != | |
1230 | (address << 1)) { | |
1231 | pr_debug("w83793: Detection failed at check " | |
1232 | "i2c addr\n"); | |
1233 | err = -ENODEV; | |
1234 | goto free_mem; | |
1235 | } | |
1236 | ||
1237 | } | |
1238 | ||
1239 | /* We have either had a force parameter, or we have already detected the | |
1240 | Winbond. Determine the chip type now */ | |
1241 | ||
1242 | if (kind <= 0) { | |
1243 | if (0x7b == w83793_read_value(client, W83793_REG_CHIPID)) { | |
1244 | kind = w83793; | |
1245 | } else { | |
1246 | if (kind == 0) | |
1247 | dev_warn(&adapter->dev, "w83793: Ignoring " | |
1248 | "'force' parameter for unknown chip " | |
1249 | "at address 0x%02x\n", address); | |
1250 | err = -ENODEV; | |
1251 | goto free_mem; | |
1252 | } | |
1253 | } | |
1254 | ||
1255 | /* Fill in the remaining client fields and put into the global list */ | |
1256 | strlcpy(client->name, "w83793", I2C_NAME_SIZE); | |
1257 | ||
1258 | mutex_init(&data->update_lock); | |
1259 | ||
1260 | /* Tell the I2C layer a new client has arrived */ | |
1261 | if ((err = i2c_attach_client(client))) | |
1262 | goto free_mem; | |
1263 | ||
1264 | if ((err = w83793_detect_subclients(adapter, address, kind, client))) | |
1265 | goto detach_client; | |
1266 | ||
1267 | /* Initialize the chip */ | |
1268 | w83793_init_client(client); | |
1269 | ||
1270 | data->vrm = vid_which_vrm(); | |
1271 | /* | |
1272 | Only fan 1-5 has their own input pins, | |
1273 | Pwm 1-3 has their own pins | |
1274 | */ | |
1275 | data->has_fan = 0x1f; | |
1276 | data->has_pwm = 0x07; | |
1277 | tmp = w83793_read_value(client, W83793_REG_MFC); | |
1278 | val = w83793_read_value(client, W83793_REG_FANIN_CTRL); | |
1279 | ||
1280 | /* check the function of pins 49-56 */ | |
1281 | if (!(tmp & 0x80)) { | |
1282 | data->has_pwm |= 0x18; /* pwm 4,5 */ | |
1283 | if (val & 0x01) { /* fan 6 */ | |
1284 | data->has_fan |= 0x20; | |
1285 | data->has_pwm |= 0x20; | |
1286 | } | |
1287 | if (val & 0x02) { /* fan 7 */ | |
1288 | data->has_fan |= 0x40; | |
1289 | data->has_pwm |= 0x40; | |
1290 | } | |
1291 | if (!(tmp & 0x40) && (val & 0x04)) { /* fan 8 */ | |
1292 | data->has_fan |= 0x80; | |
1293 | data->has_pwm |= 0x80; | |
1294 | } | |
1295 | } | |
1296 | ||
1297 | if (0x08 == (tmp & 0x0c)) { | |
1298 | if (val & 0x08) /* fan 9 */ | |
1299 | data->has_fan |= 0x100; | |
1300 | if (val & 0x10) /* fan 10 */ | |
1301 | data->has_fan |= 0x200; | |
1302 | } | |
1303 | ||
1304 | if (0x20 == (tmp & 0x30)) { | |
1305 | if (val & 0x20) /* fan 11 */ | |
1306 | data->has_fan |= 0x400; | |
1307 | if (val & 0x40) /* fan 12 */ | |
1308 | data->has_fan |= 0x800; | |
1309 | } | |
1310 | ||
1311 | if ((tmp & 0x01) && (val & 0x04)) { /* fan 8, second location */ | |
1312 | data->has_fan |= 0x80; | |
1313 | data->has_pwm |= 0x80; | |
1314 | } | |
1315 | ||
1316 | /* Register sysfs hooks */ | |
1317 | for (i = 0; i < ARRAY_SIZE(w83793_sensor_attr_2); i++) { | |
1318 | err = device_create_file(dev, | |
1319 | &w83793_sensor_attr_2[i].dev_attr); | |
1320 | if (err) | |
1321 | goto exit_remove; | |
1322 | } | |
1323 | ||
1324 | for (i = 0; i < ARRAY_SIZE(sda_single_files); i++) { | |
1325 | err = device_create_file(dev, &sda_single_files[i].dev_attr); | |
1326 | if (err) | |
1327 | goto exit_remove; | |
1328 | ||
1329 | } | |
1330 | ||
1331 | for (i = 5; i < 12; i++) { | |
1332 | int j; | |
1333 | if (!(data->has_fan & (1 << i))) | |
1334 | continue; | |
1335 | for (j = 0; j < files_fan; j++) { | |
1336 | err = device_create_file(dev, | |
1337 | &w83793_left_fan[(i - 5) * files_fan | |
1338 | + j].dev_attr); | |
1339 | if (err) | |
1340 | goto exit_remove; | |
1341 | } | |
1342 | } | |
1343 | ||
1344 | for (i = 3; i < 8; i++) { | |
1345 | int j; | |
1346 | if (!(data->has_pwm & (1 << i))) | |
1347 | continue; | |
1348 | for (j = 0; j < files_pwm; j++) { | |
1349 | err = device_create_file(dev, | |
1350 | &w83793_left_pwm[(i - 3) * files_pwm | |
1351 | + j].dev_attr); | |
1352 | if (err) | |
1353 | goto exit_remove; | |
1354 | } | |
1355 | } | |
1356 | ||
1357 | data->class_dev = hwmon_device_register(dev); | |
1358 | if (IS_ERR(data->class_dev)) { | |
1359 | err = PTR_ERR(data->class_dev); | |
1360 | goto exit_remove; | |
1361 | } | |
1362 | ||
1363 | return 0; | |
1364 | ||
1365 | /* Unregister sysfs hooks */ | |
1366 | ||
1367 | exit_remove: | |
1368 | for (i = 0; i < ARRAY_SIZE(w83793_sensor_attr_2); i++) | |
1369 | device_remove_file(dev, &w83793_sensor_attr_2[i].dev_attr); | |
1370 | ||
1371 | for (i = 0; i < ARRAY_SIZE(sda_single_files); i++) | |
1372 | device_remove_file(dev, &sda_single_files[i].dev_attr); | |
1373 | ||
1374 | for (i = 0; i < ARRAY_SIZE(w83793_left_fan); i++) | |
1375 | device_remove_file(dev, &w83793_left_fan[i].dev_attr); | |
1376 | ||
1377 | for (i = 0; i < ARRAY_SIZE(w83793_left_pwm); i++) | |
1378 | device_remove_file(dev, &w83793_left_pwm[i].dev_attr); | |
1379 | ||
1380 | if (data->lm75[0] != NULL) { | |
1381 | i2c_detach_client(data->lm75[0]); | |
1382 | kfree(data->lm75[0]); | |
1383 | } | |
1384 | if (data->lm75[1] != NULL) { | |
1385 | i2c_detach_client(data->lm75[1]); | |
1386 | kfree(data->lm75[1]); | |
1387 | } | |
1388 | detach_client: | |
1389 | i2c_detach_client(client); | |
1390 | free_mem: | |
1391 | kfree(data); | |
1392 | exit: | |
1393 | return err; | |
1394 | } | |
1395 | ||
1396 | static void w83793_update_nonvolatile(struct device *dev) | |
1397 | { | |
1398 | struct i2c_client *client = to_i2c_client(dev); | |
1399 | struct w83793_data *data = i2c_get_clientdata(client); | |
1400 | int i, j; | |
1401 | /* | |
1402 | They are somewhat "stable" registers, and to update them everytime | |
1403 | takes so much time, it's just not worthy. Update them in a long | |
1404 | interval to avoid exception. | |
1405 | */ | |
1406 | if (!(time_after(jiffies, data->last_nonvolatile + HZ * 300) | |
1407 | || !data->valid)) | |
1408 | return; | |
1409 | /* update voltage limits */ | |
1410 | for (i = 1; i < 3; i++) { | |
1411 | for (j = 0; j < ARRAY_SIZE(data->in); j++) { | |
1412 | data->in[j][i] = | |
1413 | w83793_read_value(client, W83793_REG_IN[j][i]); | |
1414 | } | |
1415 | data->in_low_bits[i] = | |
1416 | w83793_read_value(client, W83793_REG_IN_LOW_BITS[i]); | |
1417 | } | |
1418 | ||
1419 | for (i = 0; i < ARRAY_SIZE(data->fan_min); i++) { | |
1420 | /* Update the Fan measured value and limits */ | |
1421 | if (!(data->has_fan & (1 << i))) { | |
1422 | continue; | |
1423 | } | |
1424 | data->fan_min[i] = | |
1425 | w83793_read_value(client, W83793_REG_FAN_MIN(i)) << 8; | |
1426 | data->fan_min[i] |= | |
1427 | w83793_read_value(client, W83793_REG_FAN_MIN(i) + 1); | |
1428 | } | |
1429 | ||
1430 | for (i = 0; i < ARRAY_SIZE(data->temp_fan_map); i++) { | |
1431 | data->temp_fan_map[i] = | |
1432 | w83793_read_value(client, W83793_REG_TEMP_FAN_MAP(i)); | |
1433 | for (j = 1; j < 5; j++) { | |
1434 | data->temp[i][j] = | |
1435 | w83793_read_value(client, W83793_REG_TEMP[i][j]); | |
1436 | } | |
1437 | data->temp_cruise[i] = | |
1438 | w83793_read_value(client, W83793_REG_TEMP_CRUISE(i)); | |
1439 | for (j = 0; j < 7; j++) { | |
1440 | data->sf2_pwm[i][j] = | |
1441 | w83793_read_value(client, W83793_REG_SF2_PWM(i, j)); | |
1442 | data->sf2_temp[i][j] = | |
1443 | w83793_read_value(client, | |
1444 | W83793_REG_SF2_TEMP(i, j)); | |
1445 | } | |
1446 | } | |
1447 | ||
1448 | for (i = 0; i < ARRAY_SIZE(data->temp_mode); i++) | |
1449 | data->temp_mode[i] = | |
1450 | w83793_read_value(client, W83793_REG_TEMP_MODE[i]); | |
1451 | ||
1452 | for (i = 0; i < ARRAY_SIZE(data->tolerance); i++) { | |
1453 | data->tolerance[i] = | |
1454 | w83793_read_value(client, W83793_REG_TEMP_TOL(i)); | |
1455 | } | |
1456 | ||
1457 | for (i = 0; i < ARRAY_SIZE(data->pwm); i++) { | |
1458 | if (!(data->has_pwm & (1 << i))) | |
1459 | continue; | |
1460 | data->pwm[i][PWM_NONSTOP] = | |
1461 | w83793_read_value(client, W83793_REG_PWM(i, PWM_NONSTOP)); | |
1462 | data->pwm[i][PWM_START] = | |
1463 | w83793_read_value(client, W83793_REG_PWM(i, PWM_START)); | |
1464 | data->pwm_stop_time[i] = | |
1465 | w83793_read_value(client, W83793_REG_PWM_STOP_TIME(i)); | |
1466 | } | |
1467 | ||
1468 | data->pwm_default = w83793_read_value(client, W83793_REG_PWM_DEFAULT); | |
1469 | data->pwm_enable = w83793_read_value(client, W83793_REG_PWM_ENABLE); | |
1470 | data->pwm_uptime = w83793_read_value(client, W83793_REG_PWM_UPTIME); | |
1471 | data->pwm_downtime = w83793_read_value(client, W83793_REG_PWM_DOWNTIME); | |
1472 | data->temp_critical = | |
1473 | w83793_read_value(client, W83793_REG_TEMP_CRITICAL); | |
1474 | data->beep_enable = w83793_read_value(client, W83793_REG_OVT_BEEP); | |
1475 | ||
1476 | for (i = 0; i < ARRAY_SIZE(data->beeps); i++) { | |
1477 | data->beeps[i] = w83793_read_value(client, W83793_REG_BEEP(i)); | |
1478 | } | |
1479 | ||
1480 | data->last_nonvolatile = jiffies; | |
1481 | } | |
1482 | ||
1483 | static struct w83793_data *w83793_update_device(struct device *dev) | |
1484 | { | |
1485 | struct i2c_client *client = to_i2c_client(dev); | |
1486 | struct w83793_data *data = i2c_get_clientdata(client); | |
1487 | int i; | |
1488 | ||
1489 | mutex_lock(&data->update_lock); | |
1490 | ||
1491 | if (!(time_after(jiffies, data->last_updated + HZ * 2) | |
1492 | || !data->valid)) | |
1493 | goto END; | |
1494 | ||
1495 | /* Update the voltages measured value and limits */ | |
1496 | for (i = 0; i < ARRAY_SIZE(data->in); i++) | |
1497 | data->in[i][IN_READ] = | |
1498 | w83793_read_value(client, W83793_REG_IN[i][IN_READ]); | |
1499 | ||
1500 | data->in_low_bits[IN_READ] = | |
1501 | w83793_read_value(client, W83793_REG_IN_LOW_BITS[IN_READ]); | |
1502 | ||
1503 | for (i = 0; i < ARRAY_SIZE(data->fan); i++) { | |
1504 | if (!(data->has_fan & (1 << i))) { | |
1505 | continue; | |
1506 | } | |
1507 | data->fan[i] = | |
1508 | w83793_read_value(client, W83793_REG_FAN(i)) << 8; | |
1509 | data->fan[i] |= | |
1510 | w83793_read_value(client, W83793_REG_FAN(i) + 1); | |
1511 | } | |
1512 | ||
1513 | for (i = 0; i < ARRAY_SIZE(data->temp); i++) | |
1514 | data->temp[i][TEMP_READ] = | |
1515 | w83793_read_value(client, W83793_REG_TEMP[i][TEMP_READ]); | |
1516 | ||
1517 | data->temp_low_bits = | |
1518 | w83793_read_value(client, W83793_REG_TEMP_LOW_BITS); | |
1519 | ||
1520 | for (i = 0; i < ARRAY_SIZE(data->pwm); i++) { | |
1521 | if (data->has_pwm & (1 << i)) | |
1522 | data->pwm[i][PWM_DUTY] = | |
1523 | w83793_read_value(client, | |
1524 | W83793_REG_PWM(i, PWM_DUTY)); | |
1525 | } | |
1526 | ||
1527 | for (i = 0; i < ARRAY_SIZE(data->alarms); i++) | |
1528 | data->alarms[i] = | |
1529 | w83793_read_value(client, W83793_REG_ALARM(i)); | |
1530 | data->vid[0] = w83793_read_value(client, W83793_REG_VID_INA); | |
1531 | data->vid[1] = w83793_read_value(client, W83793_REG_VID_INB); | |
1532 | w83793_update_nonvolatile(dev); | |
1533 | data->last_updated = jiffies; | |
1534 | data->valid = 1; | |
1535 | ||
1536 | END: | |
1537 | mutex_unlock(&data->update_lock); | |
1538 | return data; | |
1539 | } | |
1540 | ||
1541 | /* Ignore the possibility that somebody change bank outside the driver | |
1542 | Must be called with data->update_lock held, except during initialization */ | |
1543 | static u8 w83793_read_value(struct i2c_client *client, u16 reg) | |
1544 | { | |
1545 | struct w83793_data *data = i2c_get_clientdata(client); | |
1546 | u8 res = 0xff; | |
1547 | u8 new_bank = reg >> 8; | |
1548 | ||
1549 | new_bank |= data->bank & 0xfc; | |
1550 | if (data->bank != new_bank) { | |
1551 | if (i2c_smbus_write_byte_data | |
1552 | (client, W83793_REG_BANKSEL, new_bank) >= 0) | |
1553 | data->bank = new_bank; | |
1554 | else { | |
1555 | dev_err(&client->dev, | |
1556 | "set bank to %d failed, fall back " | |
1557 | "to bank %d, read reg 0x%x error\n", | |
1558 | new_bank, data->bank, reg); | |
1559 | res = 0x0; /* read 0x0 from the chip */ | |
1560 | goto END; | |
1561 | } | |
1562 | } | |
1563 | res = i2c_smbus_read_byte_data(client, reg & 0xff); | |
1564 | END: | |
1565 | return res; | |
1566 | } | |
1567 | ||
1568 | /* Must be called with data->update_lock held, except during initialization */ | |
1569 | static int w83793_write_value(struct i2c_client *client, u16 reg, u8 value) | |
1570 | { | |
1571 | struct w83793_data *data = i2c_get_clientdata(client); | |
1572 | int res; | |
1573 | u8 new_bank = reg >> 8; | |
1574 | ||
1575 | new_bank |= data->bank & 0xfc; | |
1576 | if (data->bank != new_bank) { | |
1577 | if ((res = i2c_smbus_write_byte_data | |
1578 | (client, W83793_REG_BANKSEL, new_bank)) >= 0) | |
1579 | data->bank = new_bank; | |
1580 | else { | |
1581 | dev_err(&client->dev, | |
1582 | "set bank to %d failed, fall back " | |
1583 | "to bank %d, write reg 0x%x error\n", | |
1584 | new_bank, data->bank, reg); | |
1585 | goto END; | |
1586 | } | |
1587 | } | |
1588 | ||
1589 | res = i2c_smbus_write_byte_data(client, reg & 0xff, value); | |
1590 | END: | |
1591 | return res; | |
1592 | } | |
1593 | ||
1594 | static int __init sensors_w83793_init(void) | |
1595 | { | |
1596 | return i2c_add_driver(&w83793_driver); | |
1597 | } | |
1598 | ||
1599 | static void __exit sensors_w83793_exit(void) | |
1600 | { | |
1601 | i2c_del_driver(&w83793_driver); | |
1602 | } | |
1603 | ||
1604 | MODULE_AUTHOR("Yuan Mu"); | |
1605 | MODULE_DESCRIPTION("w83793 driver"); | |
1606 | MODULE_LICENSE("GPL"); | |
1607 | ||
1608 | module_init(sensors_w83793_init); | |
1609 | module_exit(sensors_w83793_exit); |