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08e7e278 JD |
1 | /* |
2 | w83627ehf - Driver for the hardware monitoring functionality of | |
3 | the Winbond W83627EHF Super-I/O chip | |
4 | Copyright (C) 2005 Jean Delvare <khali@linux-fr.org> | |
3379ceee | 5 | Copyright (C) 2006 Yuan Mu (Winbond), |
08c79950 | 6 | Rudolf Marek <r.marek@sh.cvut.cz> |
c18beb5b | 7 | David Hubbard <david.c.hubbard@gmail.com> |
08e7e278 JD |
8 | |
9 | Shamelessly ripped from the w83627hf driver | |
10 | Copyright (C) 2003 Mark Studebaker | |
11 | ||
12 | Thanks to Leon Moonen, Steve Cliffe and Grant Coady for their help | |
13 | in testing and debugging this driver. | |
14 | ||
8dd2d2ca JD |
15 | This driver also supports the W83627EHG, which is the lead-free |
16 | version of the W83627EHF. | |
17 | ||
08e7e278 JD |
18 | This program is free software; you can redistribute it and/or modify |
19 | it under the terms of the GNU General Public License as published by | |
20 | the Free Software Foundation; either version 2 of the License, or | |
21 | (at your option) any later version. | |
22 | ||
23 | This program is distributed in the hope that it will be useful, | |
24 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
25 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
26 | GNU General Public License for more details. | |
27 | ||
28 | You should have received a copy of the GNU General Public License | |
29 | along with this program; if not, write to the Free Software | |
30 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
31 | ||
32 | ||
33 | Supports the following chips: | |
34 | ||
08c79950 RM |
35 | Chip #vin #fan #pwm #temp chip_id man_id |
36 | w83627ehf 10 5 4 3 0x88,0xa1 0x5ca3 | |
08e7e278 JD |
37 | */ |
38 | ||
39 | #include <linux/module.h> | |
40 | #include <linux/init.h> | |
41 | #include <linux/slab.h> | |
42 | #include <linux/i2c.h> | |
fde09509 | 43 | #include <linux/i2c-isa.h> |
943b0830 | 44 | #include <linux/hwmon.h> |
412fec82 | 45 | #include <linux/hwmon-sysfs.h> |
943b0830 | 46 | #include <linux/err.h> |
9a61bf63 | 47 | #include <linux/mutex.h> |
08e7e278 JD |
48 | #include <asm/io.h> |
49 | #include "lm75.h" | |
50 | ||
2d8672c5 JD |
51 | /* The actual ISA address is read from Super-I/O configuration space */ |
52 | static unsigned short address; | |
08e7e278 JD |
53 | |
54 | /* | |
55 | * Super-I/O constants and functions | |
56 | */ | |
57 | ||
58 | static int REG; /* The register to read/write */ | |
59 | static int VAL; /* The value to read/write */ | |
60 | ||
61 | #define W83627EHF_LD_HWM 0x0b | |
62 | ||
63 | #define SIO_REG_LDSEL 0x07 /* Logical device select */ | |
64 | #define SIO_REG_DEVID 0x20 /* Device ID (2 bytes) */ | |
65 | #define SIO_REG_ENABLE 0x30 /* Logical device enable */ | |
66 | #define SIO_REG_ADDR 0x60 /* Logical device address (2 bytes) */ | |
67 | ||
68 | #define SIO_W83627EHF_ID 0x8840 | |
69 | #define SIO_ID_MASK 0xFFC0 | |
70 | ||
71 | static inline void | |
72 | superio_outb(int reg, int val) | |
73 | { | |
74 | outb(reg, REG); | |
75 | outb(val, VAL); | |
76 | } | |
77 | ||
78 | static inline int | |
79 | superio_inb(int reg) | |
80 | { | |
81 | outb(reg, REG); | |
82 | return inb(VAL); | |
83 | } | |
84 | ||
85 | static inline void | |
86 | superio_select(int ld) | |
87 | { | |
88 | outb(SIO_REG_LDSEL, REG); | |
89 | outb(ld, VAL); | |
90 | } | |
91 | ||
92 | static inline void | |
93 | superio_enter(void) | |
94 | { | |
95 | outb(0x87, REG); | |
96 | outb(0x87, REG); | |
97 | } | |
98 | ||
99 | static inline void | |
100 | superio_exit(void) | |
101 | { | |
102 | outb(0x02, REG); | |
103 | outb(0x02, VAL); | |
104 | } | |
105 | ||
106 | /* | |
107 | * ISA constants | |
108 | */ | |
109 | ||
ada0c2f8 PV |
110 | #define REGION_ALIGNMENT ~7 |
111 | #define REGION_OFFSET 5 | |
112 | #define REGION_LENGTH 2 | |
08e7e278 JD |
113 | #define ADDR_REG_OFFSET 5 |
114 | #define DATA_REG_OFFSET 6 | |
115 | ||
116 | #define W83627EHF_REG_BANK 0x4E | |
117 | #define W83627EHF_REG_CONFIG 0x40 | |
118 | #define W83627EHF_REG_CHIP_ID 0x49 | |
119 | #define W83627EHF_REG_MAN_ID 0x4F | |
120 | ||
121 | static const u16 W83627EHF_REG_FAN[] = { 0x28, 0x29, 0x2a, 0x3f, 0x553 }; | |
122 | static const u16 W83627EHF_REG_FAN_MIN[] = { 0x3b, 0x3c, 0x3d, 0x3e, 0x55c }; | |
123 | ||
cf0676fe RM |
124 | /* The W83627EHF registers for nr=7,8,9 are in bank 5 */ |
125 | #define W83627EHF_REG_IN_MAX(nr) ((nr < 7) ? (0x2b + (nr) * 2) : \ | |
126 | (0x554 + (((nr) - 7) * 2))) | |
127 | #define W83627EHF_REG_IN_MIN(nr) ((nr < 7) ? (0x2c + (nr) * 2) : \ | |
128 | (0x555 + (((nr) - 7) * 2))) | |
129 | #define W83627EHF_REG_IN(nr) ((nr < 7) ? (0x20 + (nr)) : \ | |
130 | (0x550 + (nr) - 7)) | |
131 | ||
08e7e278 JD |
132 | #define W83627EHF_REG_TEMP1 0x27 |
133 | #define W83627EHF_REG_TEMP1_HYST 0x3a | |
134 | #define W83627EHF_REG_TEMP1_OVER 0x39 | |
135 | static const u16 W83627EHF_REG_TEMP[] = { 0x150, 0x250 }; | |
136 | static const u16 W83627EHF_REG_TEMP_HYST[] = { 0x153, 0x253 }; | |
137 | static const u16 W83627EHF_REG_TEMP_OVER[] = { 0x155, 0x255 }; | |
138 | static const u16 W83627EHF_REG_TEMP_CONFIG[] = { 0x152, 0x252 }; | |
139 | ||
140 | /* Fan clock dividers are spread over the following five registers */ | |
141 | #define W83627EHF_REG_FANDIV1 0x47 | |
142 | #define W83627EHF_REG_FANDIV2 0x4B | |
143 | #define W83627EHF_REG_VBAT 0x5D | |
144 | #define W83627EHF_REG_DIODE 0x59 | |
145 | #define W83627EHF_REG_SMI_OVT 0x4C | |
146 | ||
a4589dbb JD |
147 | #define W83627EHF_REG_ALARM1 0x459 |
148 | #define W83627EHF_REG_ALARM2 0x45A | |
149 | #define W83627EHF_REG_ALARM3 0x45B | |
150 | ||
08c79950 RM |
151 | /* SmartFan registers */ |
152 | /* DC or PWM output fan configuration */ | |
153 | static const u8 W83627EHF_REG_PWM_ENABLE[] = { | |
154 | 0x04, /* SYS FAN0 output mode and PWM mode */ | |
155 | 0x04, /* CPU FAN0 output mode and PWM mode */ | |
156 | 0x12, /* AUX FAN mode */ | |
157 | 0x62, /* CPU fan1 mode */ | |
158 | }; | |
159 | ||
160 | static const u8 W83627EHF_PWM_MODE_SHIFT[] = { 0, 1, 0, 6 }; | |
161 | static const u8 W83627EHF_PWM_ENABLE_SHIFT[] = { 2, 4, 1, 4 }; | |
162 | ||
163 | /* FAN Duty Cycle, be used to control */ | |
164 | static const u8 W83627EHF_REG_PWM[] = { 0x01, 0x03, 0x11, 0x61 }; | |
165 | static const u8 W83627EHF_REG_TARGET[] = { 0x05, 0x06, 0x13, 0x63 }; | |
166 | static const u8 W83627EHF_REG_TOLERANCE[] = { 0x07, 0x07, 0x14, 0x62 }; | |
167 | ||
168 | ||
169 | /* Advanced Fan control, some values are common for all fans */ | |
170 | static const u8 W83627EHF_REG_FAN_MIN_OUTPUT[] = { 0x08, 0x09, 0x15, 0x64 }; | |
171 | static const u8 W83627EHF_REG_FAN_STOP_TIME[] = { 0x0C, 0x0D, 0x17, 0x66 }; | |
172 | ||
08e7e278 JD |
173 | /* |
174 | * Conversions | |
175 | */ | |
176 | ||
08c79950 RM |
177 | /* 1 is PWM mode, output in ms */ |
178 | static inline unsigned int step_time_from_reg(u8 reg, u8 mode) | |
179 | { | |
180 | return mode ? 100 * reg : 400 * reg; | |
181 | } | |
182 | ||
183 | static inline u8 step_time_to_reg(unsigned int msec, u8 mode) | |
184 | { | |
185 | return SENSORS_LIMIT((mode ? (msec + 50) / 100 : | |
186 | (msec + 200) / 400), 1, 255); | |
187 | } | |
188 | ||
08e7e278 JD |
189 | static inline unsigned int |
190 | fan_from_reg(u8 reg, unsigned int div) | |
191 | { | |
192 | if (reg == 0 || reg == 255) | |
193 | return 0; | |
194 | return 1350000U / (reg * div); | |
195 | } | |
196 | ||
197 | static inline unsigned int | |
198 | div_from_reg(u8 reg) | |
199 | { | |
200 | return 1 << reg; | |
201 | } | |
202 | ||
203 | static inline int | |
204 | temp1_from_reg(s8 reg) | |
205 | { | |
206 | return reg * 1000; | |
207 | } | |
208 | ||
209 | static inline s8 | |
08c79950 | 210 | temp1_to_reg(int temp, int min, int max) |
08e7e278 | 211 | { |
08c79950 RM |
212 | if (temp <= min) |
213 | return min / 1000; | |
214 | if (temp >= max) | |
215 | return max / 1000; | |
08e7e278 JD |
216 | if (temp < 0) |
217 | return (temp - 500) / 1000; | |
218 | return (temp + 500) / 1000; | |
219 | } | |
220 | ||
cf0676fe RM |
221 | /* Some of analog inputs have internal scaling (2x), 8mV is ADC LSB */ |
222 | ||
223 | static u8 scale_in[10] = { 8, 8, 16, 16, 8, 8, 8, 16, 16, 8 }; | |
224 | ||
225 | static inline long in_from_reg(u8 reg, u8 nr) | |
226 | { | |
227 | return reg * scale_in[nr]; | |
228 | } | |
229 | ||
230 | static inline u8 in_to_reg(u32 val, u8 nr) | |
231 | { | |
232 | return SENSORS_LIMIT(((val + (scale_in[nr] / 2)) / scale_in[nr]), 0, 255); | |
233 | } | |
234 | ||
08e7e278 JD |
235 | /* |
236 | * Data structures and manipulation thereof | |
237 | */ | |
238 | ||
239 | struct w83627ehf_data { | |
240 | struct i2c_client client; | |
943b0830 | 241 | struct class_device *class_dev; |
9a61bf63 | 242 | struct mutex lock; |
08e7e278 | 243 | |
9a61bf63 | 244 | struct mutex update_lock; |
08e7e278 JD |
245 | char valid; /* !=0 if following fields are valid */ |
246 | unsigned long last_updated; /* In jiffies */ | |
247 | ||
248 | /* Register values */ | |
cf0676fe RM |
249 | u8 in[10]; /* Register value */ |
250 | u8 in_max[10]; /* Register value */ | |
251 | u8 in_min[10]; /* Register value */ | |
08e7e278 JD |
252 | u8 fan[5]; |
253 | u8 fan_min[5]; | |
254 | u8 fan_div[5]; | |
255 | u8 has_fan; /* some fan inputs can be disabled */ | |
256 | s8 temp1; | |
257 | s8 temp1_max; | |
258 | s8 temp1_max_hyst; | |
259 | s16 temp[2]; | |
260 | s16 temp_max[2]; | |
261 | s16 temp_max_hyst[2]; | |
a4589dbb | 262 | u32 alarms; |
08c79950 RM |
263 | |
264 | u8 pwm_mode[4]; /* 0->DC variable voltage, 1->PWM variable duty cycle */ | |
265 | u8 pwm_enable[4]; /* 1->manual | |
266 | 2->thermal cruise (also called SmartFan I) */ | |
267 | u8 pwm[4]; | |
268 | u8 target_temp[4]; | |
269 | u8 tolerance[4]; | |
270 | ||
271 | u8 fan_min_output[4]; /* minimum fan speed */ | |
272 | u8 fan_stop_time[4]; | |
08e7e278 JD |
273 | }; |
274 | ||
275 | static inline int is_word_sized(u16 reg) | |
276 | { | |
277 | return (((reg & 0xff00) == 0x100 | |
278 | || (reg & 0xff00) == 0x200) | |
279 | && ((reg & 0x00ff) == 0x50 | |
280 | || (reg & 0x00ff) == 0x53 | |
281 | || (reg & 0x00ff) == 0x55)); | |
282 | } | |
283 | ||
284 | /* We assume that the default bank is 0, thus the following two functions do | |
285 | nothing for registers which live in bank 0. For others, they respectively | |
286 | set the bank register to the correct value (before the register is | |
287 | accessed), and back to 0 (afterwards). */ | |
288 | static inline void w83627ehf_set_bank(struct i2c_client *client, u16 reg) | |
289 | { | |
290 | if (reg & 0xff00) { | |
291 | outb_p(W83627EHF_REG_BANK, client->addr + ADDR_REG_OFFSET); | |
292 | outb_p(reg >> 8, client->addr + DATA_REG_OFFSET); | |
293 | } | |
294 | } | |
295 | ||
296 | static inline void w83627ehf_reset_bank(struct i2c_client *client, u16 reg) | |
297 | { | |
298 | if (reg & 0xff00) { | |
299 | outb_p(W83627EHF_REG_BANK, client->addr + ADDR_REG_OFFSET); | |
300 | outb_p(0, client->addr + DATA_REG_OFFSET); | |
301 | } | |
302 | } | |
303 | ||
304 | static u16 w83627ehf_read_value(struct i2c_client *client, u16 reg) | |
305 | { | |
306 | struct w83627ehf_data *data = i2c_get_clientdata(client); | |
307 | int res, word_sized = is_word_sized(reg); | |
308 | ||
9a61bf63 | 309 | mutex_lock(&data->lock); |
08e7e278 JD |
310 | |
311 | w83627ehf_set_bank(client, reg); | |
312 | outb_p(reg & 0xff, client->addr + ADDR_REG_OFFSET); | |
313 | res = inb_p(client->addr + DATA_REG_OFFSET); | |
314 | if (word_sized) { | |
315 | outb_p((reg & 0xff) + 1, | |
316 | client->addr + ADDR_REG_OFFSET); | |
317 | res = (res << 8) + inb_p(client->addr + DATA_REG_OFFSET); | |
318 | } | |
319 | w83627ehf_reset_bank(client, reg); | |
320 | ||
9a61bf63 | 321 | mutex_unlock(&data->lock); |
08e7e278 JD |
322 | |
323 | return res; | |
324 | } | |
325 | ||
326 | static int w83627ehf_write_value(struct i2c_client *client, u16 reg, u16 value) | |
327 | { | |
328 | struct w83627ehf_data *data = i2c_get_clientdata(client); | |
329 | int word_sized = is_word_sized(reg); | |
330 | ||
9a61bf63 | 331 | mutex_lock(&data->lock); |
08e7e278 JD |
332 | |
333 | w83627ehf_set_bank(client, reg); | |
334 | outb_p(reg & 0xff, client->addr + ADDR_REG_OFFSET); | |
335 | if (word_sized) { | |
336 | outb_p(value >> 8, client->addr + DATA_REG_OFFSET); | |
337 | outb_p((reg & 0xff) + 1, | |
338 | client->addr + ADDR_REG_OFFSET); | |
339 | } | |
340 | outb_p(value & 0xff, client->addr + DATA_REG_OFFSET); | |
341 | w83627ehf_reset_bank(client, reg); | |
342 | ||
9a61bf63 | 343 | mutex_unlock(&data->lock); |
08e7e278 JD |
344 | return 0; |
345 | } | |
346 | ||
347 | /* This function assumes that the caller holds data->update_lock */ | |
348 | static void w83627ehf_write_fan_div(struct i2c_client *client, int nr) | |
349 | { | |
350 | struct w83627ehf_data *data = i2c_get_clientdata(client); | |
351 | u8 reg; | |
352 | ||
353 | switch (nr) { | |
354 | case 0: | |
355 | reg = (w83627ehf_read_value(client, W83627EHF_REG_FANDIV1) & 0xcf) | |
356 | | ((data->fan_div[0] & 0x03) << 4); | |
14992c7e RM |
357 | /* fan5 input control bit is write only, compute the value */ |
358 | reg |= (data->has_fan & (1 << 4)) ? 1 : 0; | |
08e7e278 JD |
359 | w83627ehf_write_value(client, W83627EHF_REG_FANDIV1, reg); |
360 | reg = (w83627ehf_read_value(client, W83627EHF_REG_VBAT) & 0xdf) | |
361 | | ((data->fan_div[0] & 0x04) << 3); | |
362 | w83627ehf_write_value(client, W83627EHF_REG_VBAT, reg); | |
363 | break; | |
364 | case 1: | |
365 | reg = (w83627ehf_read_value(client, W83627EHF_REG_FANDIV1) & 0x3f) | |
366 | | ((data->fan_div[1] & 0x03) << 6); | |
14992c7e RM |
367 | /* fan5 input control bit is write only, compute the value */ |
368 | reg |= (data->has_fan & (1 << 4)) ? 1 : 0; | |
08e7e278 JD |
369 | w83627ehf_write_value(client, W83627EHF_REG_FANDIV1, reg); |
370 | reg = (w83627ehf_read_value(client, W83627EHF_REG_VBAT) & 0xbf) | |
371 | | ((data->fan_div[1] & 0x04) << 4); | |
372 | w83627ehf_write_value(client, W83627EHF_REG_VBAT, reg); | |
373 | break; | |
374 | case 2: | |
375 | reg = (w83627ehf_read_value(client, W83627EHF_REG_FANDIV2) & 0x3f) | |
376 | | ((data->fan_div[2] & 0x03) << 6); | |
377 | w83627ehf_write_value(client, W83627EHF_REG_FANDIV2, reg); | |
378 | reg = (w83627ehf_read_value(client, W83627EHF_REG_VBAT) & 0x7f) | |
379 | | ((data->fan_div[2] & 0x04) << 5); | |
380 | w83627ehf_write_value(client, W83627EHF_REG_VBAT, reg); | |
381 | break; | |
382 | case 3: | |
383 | reg = (w83627ehf_read_value(client, W83627EHF_REG_DIODE) & 0xfc) | |
384 | | (data->fan_div[3] & 0x03); | |
385 | w83627ehf_write_value(client, W83627EHF_REG_DIODE, reg); | |
386 | reg = (w83627ehf_read_value(client, W83627EHF_REG_SMI_OVT) & 0x7f) | |
387 | | ((data->fan_div[3] & 0x04) << 5); | |
388 | w83627ehf_write_value(client, W83627EHF_REG_SMI_OVT, reg); | |
389 | break; | |
390 | case 4: | |
391 | reg = (w83627ehf_read_value(client, W83627EHF_REG_DIODE) & 0x73) | |
392 | | ((data->fan_div[4] & 0x03) << 3) | |
393 | | ((data->fan_div[4] & 0x04) << 5); | |
394 | w83627ehf_write_value(client, W83627EHF_REG_DIODE, reg); | |
395 | break; | |
396 | } | |
397 | } | |
398 | ||
399 | static struct w83627ehf_data *w83627ehf_update_device(struct device *dev) | |
400 | { | |
401 | struct i2c_client *client = to_i2c_client(dev); | |
402 | struct w83627ehf_data *data = i2c_get_clientdata(client); | |
08c79950 | 403 | int pwmcfg = 0, tolerance = 0; /* shut up the compiler */ |
08e7e278 JD |
404 | int i; |
405 | ||
9a61bf63 | 406 | mutex_lock(&data->update_lock); |
08e7e278 JD |
407 | |
408 | if (time_after(jiffies, data->last_updated + HZ) | |
409 | || !data->valid) { | |
410 | /* Fan clock dividers */ | |
411 | i = w83627ehf_read_value(client, W83627EHF_REG_FANDIV1); | |
412 | data->fan_div[0] = (i >> 4) & 0x03; | |
413 | data->fan_div[1] = (i >> 6) & 0x03; | |
414 | i = w83627ehf_read_value(client, W83627EHF_REG_FANDIV2); | |
415 | data->fan_div[2] = (i >> 6) & 0x03; | |
416 | i = w83627ehf_read_value(client, W83627EHF_REG_VBAT); | |
417 | data->fan_div[0] |= (i >> 3) & 0x04; | |
418 | data->fan_div[1] |= (i >> 4) & 0x04; | |
419 | data->fan_div[2] |= (i >> 5) & 0x04; | |
420 | if (data->has_fan & ((1 << 3) | (1 << 4))) { | |
421 | i = w83627ehf_read_value(client, W83627EHF_REG_DIODE); | |
422 | data->fan_div[3] = i & 0x03; | |
423 | data->fan_div[4] = ((i >> 2) & 0x03) | |
424 | | ((i >> 5) & 0x04); | |
425 | } | |
426 | if (data->has_fan & (1 << 3)) { | |
427 | i = w83627ehf_read_value(client, W83627EHF_REG_SMI_OVT); | |
428 | data->fan_div[3] |= (i >> 5) & 0x04; | |
429 | } | |
430 | ||
cf0676fe RM |
431 | /* Measured voltages and limits */ |
432 | for (i = 0; i < 10; i++) { | |
433 | data->in[i] = w83627ehf_read_value(client, | |
434 | W83627EHF_REG_IN(i)); | |
435 | data->in_min[i] = w83627ehf_read_value(client, | |
436 | W83627EHF_REG_IN_MIN(i)); | |
437 | data->in_max[i] = w83627ehf_read_value(client, | |
438 | W83627EHF_REG_IN_MAX(i)); | |
439 | } | |
440 | ||
08e7e278 JD |
441 | /* Measured fan speeds and limits */ |
442 | for (i = 0; i < 5; i++) { | |
443 | if (!(data->has_fan & (1 << i))) | |
444 | continue; | |
445 | ||
446 | data->fan[i] = w83627ehf_read_value(client, | |
447 | W83627EHF_REG_FAN[i]); | |
448 | data->fan_min[i] = w83627ehf_read_value(client, | |
449 | W83627EHF_REG_FAN_MIN[i]); | |
450 | ||
451 | /* If we failed to measure the fan speed and clock | |
452 | divider can be increased, let's try that for next | |
453 | time */ | |
454 | if (data->fan[i] == 0xff | |
455 | && data->fan_div[i] < 0x07) { | |
456 | dev_dbg(&client->dev, "Increasing fan %d " | |
457 | "clock divider from %u to %u\n", | |
458 | i, div_from_reg(data->fan_div[i]), | |
459 | div_from_reg(data->fan_div[i] + 1)); | |
460 | data->fan_div[i]++; | |
461 | w83627ehf_write_fan_div(client, i); | |
462 | /* Preserve min limit if possible */ | |
463 | if (data->fan_min[i] >= 2 | |
464 | && data->fan_min[i] != 255) | |
465 | w83627ehf_write_value(client, | |
466 | W83627EHF_REG_FAN_MIN[i], | |
467 | (data->fan_min[i] /= 2)); | |
468 | } | |
469 | } | |
470 | ||
08c79950 RM |
471 | for (i = 0; i < 4; i++) { |
472 | /* pwmcfg, tolarance mapped for i=0, i=1 to same reg */ | |
473 | if (i != 1) { | |
474 | pwmcfg = w83627ehf_read_value(client, | |
475 | W83627EHF_REG_PWM_ENABLE[i]); | |
476 | tolerance = w83627ehf_read_value(client, | |
477 | W83627EHF_REG_TOLERANCE[i]); | |
478 | } | |
479 | data->pwm_mode[i] = | |
480 | ((pwmcfg >> W83627EHF_PWM_MODE_SHIFT[i]) & 1) | |
481 | ? 0 : 1; | |
482 | data->pwm_enable[i] = | |
483 | ((pwmcfg >> W83627EHF_PWM_ENABLE_SHIFT[i]) | |
484 | & 3) + 1; | |
485 | data->pwm[i] = w83627ehf_read_value(client, | |
486 | W83627EHF_REG_PWM[i]); | |
487 | data->fan_min_output[i] = w83627ehf_read_value(client, | |
488 | W83627EHF_REG_FAN_MIN_OUTPUT[i]); | |
489 | data->fan_stop_time[i] = w83627ehf_read_value(client, | |
490 | W83627EHF_REG_FAN_STOP_TIME[i]); | |
491 | data->target_temp[i] = | |
492 | w83627ehf_read_value(client, | |
493 | W83627EHF_REG_TARGET[i]) & | |
494 | (data->pwm_mode[i] == 1 ? 0x7f : 0xff); | |
495 | data->tolerance[i] = (tolerance >> (i == 1 ? 4 : 0)) | |
496 | & 0x0f; | |
497 | } | |
498 | ||
08e7e278 JD |
499 | /* Measured temperatures and limits */ |
500 | data->temp1 = w83627ehf_read_value(client, | |
501 | W83627EHF_REG_TEMP1); | |
502 | data->temp1_max = w83627ehf_read_value(client, | |
503 | W83627EHF_REG_TEMP1_OVER); | |
504 | data->temp1_max_hyst = w83627ehf_read_value(client, | |
505 | W83627EHF_REG_TEMP1_HYST); | |
506 | for (i = 0; i < 2; i++) { | |
507 | data->temp[i] = w83627ehf_read_value(client, | |
508 | W83627EHF_REG_TEMP[i]); | |
509 | data->temp_max[i] = w83627ehf_read_value(client, | |
510 | W83627EHF_REG_TEMP_OVER[i]); | |
511 | data->temp_max_hyst[i] = w83627ehf_read_value(client, | |
512 | W83627EHF_REG_TEMP_HYST[i]); | |
513 | } | |
514 | ||
a4589dbb JD |
515 | data->alarms = w83627ehf_read_value(client, |
516 | W83627EHF_REG_ALARM1) | | |
517 | (w83627ehf_read_value(client, | |
518 | W83627EHF_REG_ALARM2) << 8) | | |
519 | (w83627ehf_read_value(client, | |
520 | W83627EHF_REG_ALARM3) << 16); | |
521 | ||
08e7e278 JD |
522 | data->last_updated = jiffies; |
523 | data->valid = 1; | |
524 | } | |
525 | ||
9a61bf63 | 526 | mutex_unlock(&data->update_lock); |
08e7e278 JD |
527 | return data; |
528 | } | |
529 | ||
530 | /* | |
531 | * Sysfs callback functions | |
532 | */ | |
cf0676fe RM |
533 | #define show_in_reg(reg) \ |
534 | static ssize_t \ | |
535 | show_##reg(struct device *dev, struct device_attribute *attr, \ | |
536 | char *buf) \ | |
537 | { \ | |
538 | struct w83627ehf_data *data = w83627ehf_update_device(dev); \ | |
539 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \ | |
540 | int nr = sensor_attr->index; \ | |
541 | return sprintf(buf, "%ld\n", in_from_reg(data->reg[nr], nr)); \ | |
542 | } | |
543 | show_in_reg(in) | |
544 | show_in_reg(in_min) | |
545 | show_in_reg(in_max) | |
546 | ||
547 | #define store_in_reg(REG, reg) \ | |
548 | static ssize_t \ | |
549 | store_in_##reg (struct device *dev, struct device_attribute *attr, \ | |
550 | const char *buf, size_t count) \ | |
551 | { \ | |
552 | struct i2c_client *client = to_i2c_client(dev); \ | |
553 | struct w83627ehf_data *data = i2c_get_clientdata(client); \ | |
554 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \ | |
555 | int nr = sensor_attr->index; \ | |
556 | u32 val = simple_strtoul(buf, NULL, 10); \ | |
557 | \ | |
558 | mutex_lock(&data->update_lock); \ | |
559 | data->in_##reg[nr] = in_to_reg(val, nr); \ | |
560 | w83627ehf_write_value(client, W83627EHF_REG_IN_##REG(nr), \ | |
561 | data->in_##reg[nr]); \ | |
562 | mutex_unlock(&data->update_lock); \ | |
563 | return count; \ | |
564 | } | |
565 | ||
566 | store_in_reg(MIN, min) | |
567 | store_in_reg(MAX, max) | |
568 | ||
a4589dbb JD |
569 | static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, char *buf) |
570 | { | |
571 | struct w83627ehf_data *data = w83627ehf_update_device(dev); | |
572 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
573 | int nr = sensor_attr->index; | |
574 | return sprintf(buf, "%u\n", (data->alarms >> nr) & 0x01); | |
575 | } | |
576 | ||
cf0676fe RM |
577 | static struct sensor_device_attribute sda_in_input[] = { |
578 | SENSOR_ATTR(in0_input, S_IRUGO, show_in, NULL, 0), | |
579 | SENSOR_ATTR(in1_input, S_IRUGO, show_in, NULL, 1), | |
580 | SENSOR_ATTR(in2_input, S_IRUGO, show_in, NULL, 2), | |
581 | SENSOR_ATTR(in3_input, S_IRUGO, show_in, NULL, 3), | |
582 | SENSOR_ATTR(in4_input, S_IRUGO, show_in, NULL, 4), | |
583 | SENSOR_ATTR(in5_input, S_IRUGO, show_in, NULL, 5), | |
584 | SENSOR_ATTR(in6_input, S_IRUGO, show_in, NULL, 6), | |
585 | SENSOR_ATTR(in7_input, S_IRUGO, show_in, NULL, 7), | |
586 | SENSOR_ATTR(in8_input, S_IRUGO, show_in, NULL, 8), | |
587 | SENSOR_ATTR(in9_input, S_IRUGO, show_in, NULL, 9), | |
588 | }; | |
589 | ||
a4589dbb JD |
590 | static struct sensor_device_attribute sda_in_alarm[] = { |
591 | SENSOR_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0), | |
592 | SENSOR_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1), | |
593 | SENSOR_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2), | |
594 | SENSOR_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3), | |
595 | SENSOR_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8), | |
596 | SENSOR_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 21), | |
597 | SENSOR_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 20), | |
598 | SENSOR_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 16), | |
599 | SENSOR_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 17), | |
600 | SENSOR_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, 19), | |
601 | }; | |
602 | ||
cf0676fe RM |
603 | static struct sensor_device_attribute sda_in_min[] = { |
604 | SENSOR_ATTR(in0_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 0), | |
605 | SENSOR_ATTR(in1_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 1), | |
606 | SENSOR_ATTR(in2_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 2), | |
607 | SENSOR_ATTR(in3_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 3), | |
608 | SENSOR_ATTR(in4_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 4), | |
609 | SENSOR_ATTR(in5_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 5), | |
610 | SENSOR_ATTR(in6_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 6), | |
611 | SENSOR_ATTR(in7_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 7), | |
612 | SENSOR_ATTR(in8_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 8), | |
613 | SENSOR_ATTR(in9_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 9), | |
614 | }; | |
615 | ||
616 | static struct sensor_device_attribute sda_in_max[] = { | |
617 | SENSOR_ATTR(in0_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 0), | |
618 | SENSOR_ATTR(in1_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 1), | |
619 | SENSOR_ATTR(in2_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 2), | |
620 | SENSOR_ATTR(in3_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 3), | |
621 | SENSOR_ATTR(in4_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 4), | |
622 | SENSOR_ATTR(in5_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 5), | |
623 | SENSOR_ATTR(in6_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 6), | |
624 | SENSOR_ATTR(in7_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 7), | |
625 | SENSOR_ATTR(in8_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 8), | |
626 | SENSOR_ATTR(in9_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 9), | |
627 | }; | |
628 | ||
08e7e278 JD |
629 | #define show_fan_reg(reg) \ |
630 | static ssize_t \ | |
412fec82 YM |
631 | show_##reg(struct device *dev, struct device_attribute *attr, \ |
632 | char *buf) \ | |
08e7e278 JD |
633 | { \ |
634 | struct w83627ehf_data *data = w83627ehf_update_device(dev); \ | |
412fec82 YM |
635 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \ |
636 | int nr = sensor_attr->index; \ | |
08e7e278 JD |
637 | return sprintf(buf, "%d\n", \ |
638 | fan_from_reg(data->reg[nr], \ | |
639 | div_from_reg(data->fan_div[nr]))); \ | |
640 | } | |
641 | show_fan_reg(fan); | |
642 | show_fan_reg(fan_min); | |
643 | ||
644 | static ssize_t | |
412fec82 YM |
645 | show_fan_div(struct device *dev, struct device_attribute *attr, |
646 | char *buf) | |
08e7e278 JD |
647 | { |
648 | struct w83627ehf_data *data = w83627ehf_update_device(dev); | |
412fec82 YM |
649 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
650 | int nr = sensor_attr->index; | |
651 | return sprintf(buf, "%u\n", div_from_reg(data->fan_div[nr])); | |
08e7e278 JD |
652 | } |
653 | ||
654 | static ssize_t | |
412fec82 YM |
655 | store_fan_min(struct device *dev, struct device_attribute *attr, |
656 | const char *buf, size_t count) | |
08e7e278 JD |
657 | { |
658 | struct i2c_client *client = to_i2c_client(dev); | |
659 | struct w83627ehf_data *data = i2c_get_clientdata(client); | |
412fec82 YM |
660 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
661 | int nr = sensor_attr->index; | |
08e7e278 JD |
662 | unsigned int val = simple_strtoul(buf, NULL, 10); |
663 | unsigned int reg; | |
664 | u8 new_div; | |
665 | ||
9a61bf63 | 666 | mutex_lock(&data->update_lock); |
08e7e278 JD |
667 | if (!val) { |
668 | /* No min limit, alarm disabled */ | |
669 | data->fan_min[nr] = 255; | |
670 | new_div = data->fan_div[nr]; /* No change */ | |
671 | dev_info(dev, "fan%u low limit and alarm disabled\n", nr + 1); | |
672 | } else if ((reg = 1350000U / val) >= 128 * 255) { | |
673 | /* Speed below this value cannot possibly be represented, | |
674 | even with the highest divider (128) */ | |
675 | data->fan_min[nr] = 254; | |
676 | new_div = 7; /* 128 == (1 << 7) */ | |
677 | dev_warn(dev, "fan%u low limit %u below minimum %u, set to " | |
678 | "minimum\n", nr + 1, val, fan_from_reg(254, 128)); | |
679 | } else if (!reg) { | |
680 | /* Speed above this value cannot possibly be represented, | |
681 | even with the lowest divider (1) */ | |
682 | data->fan_min[nr] = 1; | |
683 | new_div = 0; /* 1 == (1 << 0) */ | |
684 | dev_warn(dev, "fan%u low limit %u above maximum %u, set to " | |
b9110b1c | 685 | "maximum\n", nr + 1, val, fan_from_reg(1, 1)); |
08e7e278 JD |
686 | } else { |
687 | /* Automatically pick the best divider, i.e. the one such | |
688 | that the min limit will correspond to a register value | |
689 | in the 96..192 range */ | |
690 | new_div = 0; | |
691 | while (reg > 192 && new_div < 7) { | |
692 | reg >>= 1; | |
693 | new_div++; | |
694 | } | |
695 | data->fan_min[nr] = reg; | |
696 | } | |
697 | ||
698 | /* Write both the fan clock divider (if it changed) and the new | |
699 | fan min (unconditionally) */ | |
700 | if (new_div != data->fan_div[nr]) { | |
701 | if (new_div > data->fan_div[nr]) | |
702 | data->fan[nr] >>= (data->fan_div[nr] - new_div); | |
703 | else | |
704 | data->fan[nr] <<= (new_div - data->fan_div[nr]); | |
705 | ||
706 | dev_dbg(dev, "fan%u clock divider changed from %u to %u\n", | |
707 | nr + 1, div_from_reg(data->fan_div[nr]), | |
708 | div_from_reg(new_div)); | |
709 | data->fan_div[nr] = new_div; | |
710 | w83627ehf_write_fan_div(client, nr); | |
711 | } | |
712 | w83627ehf_write_value(client, W83627EHF_REG_FAN_MIN[nr], | |
713 | data->fan_min[nr]); | |
9a61bf63 | 714 | mutex_unlock(&data->update_lock); |
08e7e278 JD |
715 | |
716 | return count; | |
717 | } | |
718 | ||
412fec82 YM |
719 | static struct sensor_device_attribute sda_fan_input[] = { |
720 | SENSOR_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0), | |
721 | SENSOR_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1), | |
722 | SENSOR_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2), | |
723 | SENSOR_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3), | |
724 | SENSOR_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 4), | |
725 | }; | |
08e7e278 | 726 | |
a4589dbb JD |
727 | static struct sensor_device_attribute sda_fan_alarm[] = { |
728 | SENSOR_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6), | |
729 | SENSOR_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7), | |
730 | SENSOR_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 11), | |
731 | SENSOR_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 10), | |
732 | SENSOR_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 23), | |
733 | }; | |
734 | ||
412fec82 YM |
735 | static struct sensor_device_attribute sda_fan_min[] = { |
736 | SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min, | |
737 | store_fan_min, 0), | |
738 | SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min, | |
739 | store_fan_min, 1), | |
740 | SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min, | |
741 | store_fan_min, 2), | |
742 | SENSOR_ATTR(fan4_min, S_IWUSR | S_IRUGO, show_fan_min, | |
743 | store_fan_min, 3), | |
744 | SENSOR_ATTR(fan5_min, S_IWUSR | S_IRUGO, show_fan_min, | |
745 | store_fan_min, 4), | |
746 | }; | |
08e7e278 | 747 | |
412fec82 YM |
748 | static struct sensor_device_attribute sda_fan_div[] = { |
749 | SENSOR_ATTR(fan1_div, S_IRUGO, show_fan_div, NULL, 0), | |
750 | SENSOR_ATTR(fan2_div, S_IRUGO, show_fan_div, NULL, 1), | |
751 | SENSOR_ATTR(fan3_div, S_IRUGO, show_fan_div, NULL, 2), | |
752 | SENSOR_ATTR(fan4_div, S_IRUGO, show_fan_div, NULL, 3), | |
753 | SENSOR_ATTR(fan5_div, S_IRUGO, show_fan_div, NULL, 4), | |
754 | }; | |
755 | ||
08e7e278 JD |
756 | #define show_temp1_reg(reg) \ |
757 | static ssize_t \ | |
6f637a64 GKH |
758 | show_##reg(struct device *dev, struct device_attribute *attr, \ |
759 | char *buf) \ | |
08e7e278 JD |
760 | { \ |
761 | struct w83627ehf_data *data = w83627ehf_update_device(dev); \ | |
762 | return sprintf(buf, "%d\n", temp1_from_reg(data->reg)); \ | |
763 | } | |
764 | show_temp1_reg(temp1); | |
765 | show_temp1_reg(temp1_max); | |
766 | show_temp1_reg(temp1_max_hyst); | |
767 | ||
768 | #define store_temp1_reg(REG, reg) \ | |
769 | static ssize_t \ | |
6f637a64 GKH |
770 | store_temp1_##reg(struct device *dev, struct device_attribute *attr, \ |
771 | const char *buf, size_t count) \ | |
08e7e278 JD |
772 | { \ |
773 | struct i2c_client *client = to_i2c_client(dev); \ | |
774 | struct w83627ehf_data *data = i2c_get_clientdata(client); \ | |
775 | u32 val = simple_strtoul(buf, NULL, 10); \ | |
776 | \ | |
9a61bf63 | 777 | mutex_lock(&data->update_lock); \ |
08c79950 | 778 | data->temp1_##reg = temp1_to_reg(val, -128000, 127000); \ |
08e7e278 JD |
779 | w83627ehf_write_value(client, W83627EHF_REG_TEMP1_##REG, \ |
780 | data->temp1_##reg); \ | |
9a61bf63 | 781 | mutex_unlock(&data->update_lock); \ |
08e7e278 JD |
782 | return count; \ |
783 | } | |
784 | store_temp1_reg(OVER, max); | |
785 | store_temp1_reg(HYST, max_hyst); | |
786 | ||
08e7e278 JD |
787 | #define show_temp_reg(reg) \ |
788 | static ssize_t \ | |
412fec82 YM |
789 | show_##reg(struct device *dev, struct device_attribute *attr, \ |
790 | char *buf) \ | |
08e7e278 JD |
791 | { \ |
792 | struct w83627ehf_data *data = w83627ehf_update_device(dev); \ | |
412fec82 YM |
793 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \ |
794 | int nr = sensor_attr->index; \ | |
08e7e278 JD |
795 | return sprintf(buf, "%d\n", \ |
796 | LM75_TEMP_FROM_REG(data->reg[nr])); \ | |
797 | } | |
798 | show_temp_reg(temp); | |
799 | show_temp_reg(temp_max); | |
800 | show_temp_reg(temp_max_hyst); | |
801 | ||
802 | #define store_temp_reg(REG, reg) \ | |
803 | static ssize_t \ | |
412fec82 YM |
804 | store_##reg(struct device *dev, struct device_attribute *attr, \ |
805 | const char *buf, size_t count) \ | |
08e7e278 JD |
806 | { \ |
807 | struct i2c_client *client = to_i2c_client(dev); \ | |
808 | struct w83627ehf_data *data = i2c_get_clientdata(client); \ | |
412fec82 YM |
809 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \ |
810 | int nr = sensor_attr->index; \ | |
08e7e278 JD |
811 | u32 val = simple_strtoul(buf, NULL, 10); \ |
812 | \ | |
9a61bf63 | 813 | mutex_lock(&data->update_lock); \ |
08e7e278 JD |
814 | data->reg[nr] = LM75_TEMP_TO_REG(val); \ |
815 | w83627ehf_write_value(client, W83627EHF_REG_TEMP_##REG[nr], \ | |
816 | data->reg[nr]); \ | |
9a61bf63 | 817 | mutex_unlock(&data->update_lock); \ |
08e7e278 JD |
818 | return count; \ |
819 | } | |
820 | store_temp_reg(OVER, temp_max); | |
821 | store_temp_reg(HYST, temp_max_hyst); | |
822 | ||
412fec82 YM |
823 | static struct sensor_device_attribute sda_temp[] = { |
824 | SENSOR_ATTR(temp1_input, S_IRUGO, show_temp1, NULL, 0), | |
825 | SENSOR_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 0), | |
826 | SENSOR_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 1), | |
827 | SENSOR_ATTR(temp1_max, S_IRUGO | S_IWUSR, show_temp1_max, | |
828 | store_temp1_max, 0), | |
829 | SENSOR_ATTR(temp2_max, S_IRUGO | S_IWUSR, show_temp_max, | |
830 | store_temp_max, 0), | |
831 | SENSOR_ATTR(temp3_max, S_IRUGO | S_IWUSR, show_temp_max, | |
832 | store_temp_max, 1), | |
833 | SENSOR_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR, show_temp1_max_hyst, | |
834 | store_temp1_max_hyst, 0), | |
835 | SENSOR_ATTR(temp2_max_hyst, S_IRUGO | S_IWUSR, show_temp_max_hyst, | |
836 | store_temp_max_hyst, 0), | |
837 | SENSOR_ATTR(temp3_max_hyst, S_IRUGO | S_IWUSR, show_temp_max_hyst, | |
838 | store_temp_max_hyst, 1), | |
a4589dbb JD |
839 | SENSOR_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4), |
840 | SENSOR_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5), | |
841 | SENSOR_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13), | |
412fec82 | 842 | }; |
08e7e278 | 843 | |
08c79950 RM |
844 | #define show_pwm_reg(reg) \ |
845 | static ssize_t show_##reg (struct device *dev, struct device_attribute *attr, \ | |
846 | char *buf) \ | |
847 | { \ | |
848 | struct w83627ehf_data *data = w83627ehf_update_device(dev); \ | |
849 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \ | |
850 | int nr = sensor_attr->index; \ | |
851 | return sprintf(buf, "%d\n", data->reg[nr]); \ | |
852 | } | |
853 | ||
854 | show_pwm_reg(pwm_mode) | |
855 | show_pwm_reg(pwm_enable) | |
856 | show_pwm_reg(pwm) | |
857 | ||
858 | static ssize_t | |
859 | store_pwm_mode(struct device *dev, struct device_attribute *attr, | |
860 | const char *buf, size_t count) | |
861 | { | |
862 | struct i2c_client *client = to_i2c_client(dev); | |
863 | struct w83627ehf_data *data = i2c_get_clientdata(client); | |
864 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
865 | int nr = sensor_attr->index; | |
866 | u32 val = simple_strtoul(buf, NULL, 10); | |
867 | u16 reg; | |
868 | ||
869 | if (val > 1) | |
870 | return -EINVAL; | |
871 | mutex_lock(&data->update_lock); | |
872 | reg = w83627ehf_read_value(client, W83627EHF_REG_PWM_ENABLE[nr]); | |
873 | data->pwm_mode[nr] = val; | |
874 | reg &= ~(1 << W83627EHF_PWM_MODE_SHIFT[nr]); | |
875 | if (!val) | |
876 | reg |= 1 << W83627EHF_PWM_MODE_SHIFT[nr]; | |
877 | w83627ehf_write_value(client, W83627EHF_REG_PWM_ENABLE[nr], reg); | |
878 | mutex_unlock(&data->update_lock); | |
879 | return count; | |
880 | } | |
881 | ||
882 | static ssize_t | |
883 | store_pwm(struct device *dev, struct device_attribute *attr, | |
884 | const char *buf, size_t count) | |
885 | { | |
886 | struct i2c_client *client = to_i2c_client(dev); | |
887 | struct w83627ehf_data *data = i2c_get_clientdata(client); | |
888 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
889 | int nr = sensor_attr->index; | |
890 | u32 val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 0, 255); | |
891 | ||
892 | mutex_lock(&data->update_lock); | |
893 | data->pwm[nr] = val; | |
894 | w83627ehf_write_value(client, W83627EHF_REG_PWM[nr], val); | |
895 | mutex_unlock(&data->update_lock); | |
896 | return count; | |
897 | } | |
898 | ||
899 | static ssize_t | |
900 | store_pwm_enable(struct device *dev, struct device_attribute *attr, | |
901 | const char *buf, size_t count) | |
902 | { | |
903 | struct i2c_client *client = to_i2c_client(dev); | |
904 | struct w83627ehf_data *data = i2c_get_clientdata(client); | |
905 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
906 | int nr = sensor_attr->index; | |
907 | u32 val = simple_strtoul(buf, NULL, 10); | |
908 | u16 reg; | |
909 | ||
910 | if (!val || (val > 2)) /* only modes 1 and 2 are supported */ | |
911 | return -EINVAL; | |
912 | mutex_lock(&data->update_lock); | |
913 | reg = w83627ehf_read_value(client, W83627EHF_REG_PWM_ENABLE[nr]); | |
914 | data->pwm_enable[nr] = val; | |
915 | reg &= ~(0x03 << W83627EHF_PWM_ENABLE_SHIFT[nr]); | |
916 | reg |= (val - 1) << W83627EHF_PWM_ENABLE_SHIFT[nr]; | |
917 | w83627ehf_write_value(client, W83627EHF_REG_PWM_ENABLE[nr], reg); | |
918 | mutex_unlock(&data->update_lock); | |
919 | return count; | |
920 | } | |
921 | ||
922 | ||
923 | #define show_tol_temp(reg) \ | |
924 | static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \ | |
925 | char *buf) \ | |
926 | { \ | |
927 | struct w83627ehf_data *data = w83627ehf_update_device(dev); \ | |
928 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \ | |
929 | int nr = sensor_attr->index; \ | |
930 | return sprintf(buf, "%d\n", temp1_from_reg(data->reg[nr])); \ | |
931 | } | |
932 | ||
933 | show_tol_temp(tolerance) | |
934 | show_tol_temp(target_temp) | |
935 | ||
936 | static ssize_t | |
937 | store_target_temp(struct device *dev, struct device_attribute *attr, | |
938 | const char *buf, size_t count) | |
939 | { | |
940 | struct i2c_client *client = to_i2c_client(dev); | |
941 | struct w83627ehf_data *data = i2c_get_clientdata(client); | |
942 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
943 | int nr = sensor_attr->index; | |
944 | u8 val = temp1_to_reg(simple_strtoul(buf, NULL, 10), 0, 127000); | |
945 | ||
946 | mutex_lock(&data->update_lock); | |
947 | data->target_temp[nr] = val; | |
948 | w83627ehf_write_value(client, W83627EHF_REG_TARGET[nr], val); | |
949 | mutex_unlock(&data->update_lock); | |
950 | return count; | |
951 | } | |
952 | ||
953 | static ssize_t | |
954 | store_tolerance(struct device *dev, struct device_attribute *attr, | |
955 | const char *buf, size_t count) | |
956 | { | |
957 | struct i2c_client *client = to_i2c_client(dev); | |
958 | struct w83627ehf_data *data = i2c_get_clientdata(client); | |
959 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
960 | int nr = sensor_attr->index; | |
961 | u16 reg; | |
962 | /* Limit the temp to 0C - 15C */ | |
963 | u8 val = temp1_to_reg(simple_strtoul(buf, NULL, 10), 0, 15000); | |
964 | ||
965 | mutex_lock(&data->update_lock); | |
966 | reg = w83627ehf_read_value(client, W83627EHF_REG_TOLERANCE[nr]); | |
967 | data->tolerance[nr] = val; | |
968 | if (nr == 1) | |
969 | reg = (reg & 0x0f) | (val << 4); | |
970 | else | |
971 | reg = (reg & 0xf0) | val; | |
972 | w83627ehf_write_value(client, W83627EHF_REG_TOLERANCE[nr], reg); | |
973 | mutex_unlock(&data->update_lock); | |
974 | return count; | |
975 | } | |
976 | ||
977 | static struct sensor_device_attribute sda_pwm[] = { | |
978 | SENSOR_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0), | |
979 | SENSOR_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1), | |
980 | SENSOR_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2), | |
981 | SENSOR_ATTR(pwm4, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 3), | |
982 | }; | |
983 | ||
984 | static struct sensor_device_attribute sda_pwm_mode[] = { | |
985 | SENSOR_ATTR(pwm1_mode, S_IWUSR | S_IRUGO, show_pwm_mode, | |
986 | store_pwm_mode, 0), | |
987 | SENSOR_ATTR(pwm2_mode, S_IWUSR | S_IRUGO, show_pwm_mode, | |
988 | store_pwm_mode, 1), | |
989 | SENSOR_ATTR(pwm3_mode, S_IWUSR | S_IRUGO, show_pwm_mode, | |
990 | store_pwm_mode, 2), | |
991 | SENSOR_ATTR(pwm4_mode, S_IWUSR | S_IRUGO, show_pwm_mode, | |
992 | store_pwm_mode, 3), | |
993 | }; | |
994 | ||
995 | static struct sensor_device_attribute sda_pwm_enable[] = { | |
996 | SENSOR_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, show_pwm_enable, | |
997 | store_pwm_enable, 0), | |
998 | SENSOR_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, show_pwm_enable, | |
999 | store_pwm_enable, 1), | |
1000 | SENSOR_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, show_pwm_enable, | |
1001 | store_pwm_enable, 2), | |
1002 | SENSOR_ATTR(pwm4_enable, S_IWUSR | S_IRUGO, show_pwm_enable, | |
1003 | store_pwm_enable, 3), | |
1004 | }; | |
1005 | ||
1006 | static struct sensor_device_attribute sda_target_temp[] = { | |
1007 | SENSOR_ATTR(pwm1_target, S_IWUSR | S_IRUGO, show_target_temp, | |
1008 | store_target_temp, 0), | |
1009 | SENSOR_ATTR(pwm2_target, S_IWUSR | S_IRUGO, show_target_temp, | |
1010 | store_target_temp, 1), | |
1011 | SENSOR_ATTR(pwm3_target, S_IWUSR | S_IRUGO, show_target_temp, | |
1012 | store_target_temp, 2), | |
1013 | SENSOR_ATTR(pwm4_target, S_IWUSR | S_IRUGO, show_target_temp, | |
1014 | store_target_temp, 3), | |
1015 | }; | |
1016 | ||
1017 | static struct sensor_device_attribute sda_tolerance[] = { | |
1018 | SENSOR_ATTR(pwm1_tolerance, S_IWUSR | S_IRUGO, show_tolerance, | |
1019 | store_tolerance, 0), | |
1020 | SENSOR_ATTR(pwm2_tolerance, S_IWUSR | S_IRUGO, show_tolerance, | |
1021 | store_tolerance, 1), | |
1022 | SENSOR_ATTR(pwm3_tolerance, S_IWUSR | S_IRUGO, show_tolerance, | |
1023 | store_tolerance, 2), | |
1024 | SENSOR_ATTR(pwm4_tolerance, S_IWUSR | S_IRUGO, show_tolerance, | |
1025 | store_tolerance, 3), | |
1026 | }; | |
1027 | ||
08c79950 RM |
1028 | /* Smart Fan registers */ |
1029 | ||
1030 | #define fan_functions(reg, REG) \ | |
1031 | static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \ | |
1032 | char *buf) \ | |
1033 | { \ | |
1034 | struct w83627ehf_data *data = w83627ehf_update_device(dev); \ | |
1035 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \ | |
1036 | int nr = sensor_attr->index; \ | |
1037 | return sprintf(buf, "%d\n", data->reg[nr]); \ | |
1038 | }\ | |
1039 | static ssize_t \ | |
1040 | store_##reg(struct device *dev, struct device_attribute *attr, \ | |
1041 | const char *buf, size_t count) \ | |
1042 | {\ | |
1043 | struct i2c_client *client = to_i2c_client(dev); \ | |
1044 | struct w83627ehf_data *data = i2c_get_clientdata(client); \ | |
1045 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \ | |
1046 | int nr = sensor_attr->index; \ | |
1047 | u32 val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 1, 255); \ | |
1048 | mutex_lock(&data->update_lock); \ | |
1049 | data->reg[nr] = val; \ | |
1050 | w83627ehf_write_value(client, W83627EHF_REG_##REG[nr], val); \ | |
1051 | mutex_unlock(&data->update_lock); \ | |
1052 | return count; \ | |
1053 | } | |
1054 | ||
1055 | fan_functions(fan_min_output, FAN_MIN_OUTPUT) | |
1056 | ||
1057 | #define fan_time_functions(reg, REG) \ | |
1058 | static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \ | |
1059 | char *buf) \ | |
1060 | { \ | |
1061 | struct w83627ehf_data *data = w83627ehf_update_device(dev); \ | |
1062 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \ | |
1063 | int nr = sensor_attr->index; \ | |
1064 | return sprintf(buf, "%d\n", \ | |
1065 | step_time_from_reg(data->reg[nr], data->pwm_mode[nr])); \ | |
1066 | } \ | |
1067 | \ | |
1068 | static ssize_t \ | |
1069 | store_##reg(struct device *dev, struct device_attribute *attr, \ | |
1070 | const char *buf, size_t count) \ | |
1071 | { \ | |
1072 | struct i2c_client *client = to_i2c_client(dev); \ | |
1073 | struct w83627ehf_data *data = i2c_get_clientdata(client); \ | |
1074 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \ | |
1075 | int nr = sensor_attr->index; \ | |
1076 | u8 val = step_time_to_reg(simple_strtoul(buf, NULL, 10), \ | |
1077 | data->pwm_mode[nr]); \ | |
1078 | mutex_lock(&data->update_lock); \ | |
1079 | data->reg[nr] = val; \ | |
1080 | w83627ehf_write_value(client, W83627EHF_REG_##REG[nr], val); \ | |
1081 | mutex_unlock(&data->update_lock); \ | |
1082 | return count; \ | |
1083 | } \ | |
1084 | ||
1085 | fan_time_functions(fan_stop_time, FAN_STOP_TIME) | |
1086 | ||
1087 | ||
1088 | static struct sensor_device_attribute sda_sf3_arrays_fan4[] = { | |
1089 | SENSOR_ATTR(pwm4_stop_time, S_IWUSR | S_IRUGO, show_fan_stop_time, | |
1090 | store_fan_stop_time, 3), | |
1091 | SENSOR_ATTR(pwm4_min_output, S_IWUSR | S_IRUGO, show_fan_min_output, | |
1092 | store_fan_min_output, 3), | |
1093 | }; | |
1094 | ||
1095 | static struct sensor_device_attribute sda_sf3_arrays[] = { | |
1096 | SENSOR_ATTR(pwm1_stop_time, S_IWUSR | S_IRUGO, show_fan_stop_time, | |
1097 | store_fan_stop_time, 0), | |
1098 | SENSOR_ATTR(pwm2_stop_time, S_IWUSR | S_IRUGO, show_fan_stop_time, | |
1099 | store_fan_stop_time, 1), | |
1100 | SENSOR_ATTR(pwm3_stop_time, S_IWUSR | S_IRUGO, show_fan_stop_time, | |
1101 | store_fan_stop_time, 2), | |
1102 | SENSOR_ATTR(pwm1_min_output, S_IWUSR | S_IRUGO, show_fan_min_output, | |
1103 | store_fan_min_output, 0), | |
1104 | SENSOR_ATTR(pwm2_min_output, S_IWUSR | S_IRUGO, show_fan_min_output, | |
1105 | store_fan_min_output, 1), | |
1106 | SENSOR_ATTR(pwm3_min_output, S_IWUSR | S_IRUGO, show_fan_min_output, | |
1107 | store_fan_min_output, 2), | |
1108 | }; | |
1109 | ||
08e7e278 JD |
1110 | /* |
1111 | * Driver and client management | |
1112 | */ | |
1113 | ||
c18beb5b DH |
1114 | static void w83627ehf_device_remove_files(struct device *dev) |
1115 | { | |
1116 | /* some entries in the following arrays may not have been used in | |
1117 | * device_create_file(), but device_remove_file() will ignore them */ | |
1118 | int i; | |
1119 | ||
1120 | for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays); i++) | |
1121 | device_remove_file(dev, &sda_sf3_arrays[i].dev_attr); | |
1122 | for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays_fan4); i++) | |
1123 | device_remove_file(dev, &sda_sf3_arrays_fan4[i].dev_attr); | |
1124 | for (i = 0; i < 10; i++) { | |
1125 | device_remove_file(dev, &sda_in_input[i].dev_attr); | |
1126 | device_remove_file(dev, &sda_in_alarm[i].dev_attr); | |
1127 | device_remove_file(dev, &sda_in_min[i].dev_attr); | |
1128 | device_remove_file(dev, &sda_in_max[i].dev_attr); | |
1129 | } | |
1130 | for (i = 0; i < 5; i++) { | |
1131 | device_remove_file(dev, &sda_fan_input[i].dev_attr); | |
1132 | device_remove_file(dev, &sda_fan_alarm[i].dev_attr); | |
1133 | device_remove_file(dev, &sda_fan_div[i].dev_attr); | |
1134 | device_remove_file(dev, &sda_fan_min[i].dev_attr); | |
1135 | } | |
1136 | for (i = 0; i < 4; i++) { | |
1137 | device_remove_file(dev, &sda_pwm[i].dev_attr); | |
1138 | device_remove_file(dev, &sda_pwm_mode[i].dev_attr); | |
1139 | device_remove_file(dev, &sda_pwm_enable[i].dev_attr); | |
1140 | device_remove_file(dev, &sda_target_temp[i].dev_attr); | |
1141 | device_remove_file(dev, &sda_tolerance[i].dev_attr); | |
1142 | } | |
1143 | for (i = 0; i < ARRAY_SIZE(sda_temp); i++) | |
1144 | device_remove_file(dev, &sda_temp[i].dev_attr); | |
1145 | } | |
1146 | ||
08e7e278 JD |
1147 | static struct i2c_driver w83627ehf_driver; |
1148 | ||
1149 | static void w83627ehf_init_client(struct i2c_client *client) | |
1150 | { | |
1151 | int i; | |
1152 | u8 tmp; | |
1153 | ||
1154 | /* Start monitoring is needed */ | |
1155 | tmp = w83627ehf_read_value(client, W83627EHF_REG_CONFIG); | |
1156 | if (!(tmp & 0x01)) | |
1157 | w83627ehf_write_value(client, W83627EHF_REG_CONFIG, | |
1158 | tmp | 0x01); | |
1159 | ||
1160 | /* Enable temp2 and temp3 if needed */ | |
1161 | for (i = 0; i < 2; i++) { | |
1162 | tmp = w83627ehf_read_value(client, | |
1163 | W83627EHF_REG_TEMP_CONFIG[i]); | |
1164 | if (tmp & 0x01) | |
1165 | w83627ehf_write_value(client, | |
1166 | W83627EHF_REG_TEMP_CONFIG[i], | |
1167 | tmp & 0xfe); | |
1168 | } | |
1169 | } | |
1170 | ||
2d8672c5 | 1171 | static int w83627ehf_detect(struct i2c_adapter *adapter) |
08e7e278 JD |
1172 | { |
1173 | struct i2c_client *client; | |
1174 | struct w83627ehf_data *data; | |
412fec82 | 1175 | struct device *dev; |
08c79950 | 1176 | u8 fan4pin, fan5pin; |
08e7e278 JD |
1177 | int i, err = 0; |
1178 | ||
ada0c2f8 | 1179 | if (!request_region(address + REGION_OFFSET, REGION_LENGTH, |
cdaf7934 | 1180 | w83627ehf_driver.driver.name)) { |
08e7e278 JD |
1181 | err = -EBUSY; |
1182 | goto exit; | |
1183 | } | |
1184 | ||
ba9c2e8d | 1185 | if (!(data = kzalloc(sizeof(struct w83627ehf_data), GFP_KERNEL))) { |
08e7e278 JD |
1186 | err = -ENOMEM; |
1187 | goto exit_release; | |
1188 | } | |
08e7e278 JD |
1189 | |
1190 | client = &data->client; | |
1191 | i2c_set_clientdata(client, data); | |
1192 | client->addr = address; | |
9a61bf63 | 1193 | mutex_init(&data->lock); |
08e7e278 JD |
1194 | client->adapter = adapter; |
1195 | client->driver = &w83627ehf_driver; | |
1196 | client->flags = 0; | |
412fec82 | 1197 | dev = &client->dev; |
08e7e278 JD |
1198 | |
1199 | strlcpy(client->name, "w83627ehf", I2C_NAME_SIZE); | |
1200 | data->valid = 0; | |
9a61bf63 | 1201 | mutex_init(&data->update_lock); |
08e7e278 JD |
1202 | |
1203 | /* Tell the i2c layer a new client has arrived */ | |
1204 | if ((err = i2c_attach_client(client))) | |
1205 | goto exit_free; | |
1206 | ||
1207 | /* Initialize the chip */ | |
1208 | w83627ehf_init_client(client); | |
1209 | ||
1210 | /* A few vars need to be filled upon startup */ | |
1211 | for (i = 0; i < 5; i++) | |
1212 | data->fan_min[i] = w83627ehf_read_value(client, | |
1213 | W83627EHF_REG_FAN_MIN[i]); | |
1214 | ||
08c79950 RM |
1215 | /* fan4 and fan5 share some pins with the GPIO and serial flash */ |
1216 | ||
1217 | superio_enter(); | |
1218 | fan5pin = superio_inb(0x24) & 0x2; | |
1219 | fan4pin = superio_inb(0x29) & 0x6; | |
1220 | superio_exit(); | |
1221 | ||
08e7e278 | 1222 | /* It looks like fan4 and fan5 pins can be alternatively used |
14992c7e RM |
1223 | as fan on/off switches, but fan5 control is write only :/ |
1224 | We assume that if the serial interface is disabled, designers | |
1225 | connected fan5 as input unless they are emitting log 1, which | |
1226 | is not the default. */ | |
08c79950 | 1227 | |
08e7e278 JD |
1228 | data->has_fan = 0x07; /* fan1, fan2 and fan3 */ |
1229 | i = w83627ehf_read_value(client, W83627EHF_REG_FANDIV1); | |
08c79950 | 1230 | if ((i & (1 << 2)) && (!fan4pin)) |
08e7e278 | 1231 | data->has_fan |= (1 << 3); |
14992c7e | 1232 | if (!(i & (1 << 1)) && (!fan5pin)) |
08e7e278 JD |
1233 | data->has_fan |= (1 << 4); |
1234 | ||
1235 | /* Register sysfs hooks */ | |
08c79950 | 1236 | for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays); i++) |
c18beb5b DH |
1237 | if ((err = device_create_file(dev, |
1238 | &sda_sf3_arrays[i].dev_attr))) | |
1239 | goto exit_remove; | |
08c79950 RM |
1240 | |
1241 | /* if fan4 is enabled create the sf3 files for it */ | |
1242 | if (data->has_fan & (1 << 3)) | |
c18beb5b DH |
1243 | for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays_fan4); i++) { |
1244 | if ((err = device_create_file(dev, | |
1245 | &sda_sf3_arrays_fan4[i].dev_attr))) | |
1246 | goto exit_remove; | |
1247 | } | |
08c79950 | 1248 | |
cf0676fe | 1249 | for (i = 0; i < 10; i++) |
c18beb5b DH |
1250 | if ((err = device_create_file(dev, &sda_in_input[i].dev_attr)) |
1251 | || (err = device_create_file(dev, | |
1252 | &sda_in_alarm[i].dev_attr)) | |
1253 | || (err = device_create_file(dev, | |
1254 | &sda_in_min[i].dev_attr)) | |
1255 | || (err = device_create_file(dev, | |
1256 | &sda_in_max[i].dev_attr))) | |
1257 | goto exit_remove; | |
cf0676fe | 1258 | |
412fec82 | 1259 | for (i = 0; i < 5; i++) { |
08c79950 | 1260 | if (data->has_fan & (1 << i)) { |
c18beb5b DH |
1261 | if ((err = device_create_file(dev, |
1262 | &sda_fan_input[i].dev_attr)) | |
1263 | || (err = device_create_file(dev, | |
1264 | &sda_fan_alarm[i].dev_attr)) | |
1265 | || (err = device_create_file(dev, | |
1266 | &sda_fan_div[i].dev_attr)) | |
1267 | || (err = device_create_file(dev, | |
1268 | &sda_fan_min[i].dev_attr))) | |
1269 | goto exit_remove; | |
1270 | if (i < 4 && /* w83627ehf only has 4 pwm */ | |
1271 | ((err = device_create_file(dev, | |
1272 | &sda_pwm[i].dev_attr)) | |
1273 | || (err = device_create_file(dev, | |
1274 | &sda_pwm_mode[i].dev_attr)) | |
1275 | || (err = device_create_file(dev, | |
1276 | &sda_pwm_enable[i].dev_attr)) | |
1277 | || (err = device_create_file(dev, | |
1278 | &sda_target_temp[i].dev_attr)) | |
1279 | || (err = device_create_file(dev, | |
1280 | &sda_tolerance[i].dev_attr)))) | |
1281 | goto exit_remove; | |
08c79950 | 1282 | } |
08e7e278 | 1283 | } |
08c79950 | 1284 | |
412fec82 | 1285 | for (i = 0; i < ARRAY_SIZE(sda_temp); i++) |
c18beb5b DH |
1286 | if ((err = device_create_file(dev, &sda_temp[i].dev_attr))) |
1287 | goto exit_remove; | |
1288 | ||
1289 | data->class_dev = hwmon_device_register(dev); | |
1290 | if (IS_ERR(data->class_dev)) { | |
1291 | err = PTR_ERR(data->class_dev); | |
1292 | goto exit_remove; | |
1293 | } | |
08e7e278 JD |
1294 | |
1295 | return 0; | |
1296 | ||
c18beb5b DH |
1297 | exit_remove: |
1298 | w83627ehf_device_remove_files(dev); | |
943b0830 | 1299 | i2c_detach_client(client); |
08e7e278 JD |
1300 | exit_free: |
1301 | kfree(data); | |
1302 | exit_release: | |
ada0c2f8 | 1303 | release_region(address + REGION_OFFSET, REGION_LENGTH); |
08e7e278 JD |
1304 | exit: |
1305 | return err; | |
1306 | } | |
1307 | ||
08e7e278 JD |
1308 | static int w83627ehf_detach_client(struct i2c_client *client) |
1309 | { | |
943b0830 | 1310 | struct w83627ehf_data *data = i2c_get_clientdata(client); |
08e7e278 JD |
1311 | int err; |
1312 | ||
943b0830 | 1313 | hwmon_device_unregister(data->class_dev); |
c18beb5b | 1314 | w83627ehf_device_remove_files(&client->dev); |
943b0830 | 1315 | |
7bef5594 | 1316 | if ((err = i2c_detach_client(client))) |
08e7e278 | 1317 | return err; |
ada0c2f8 | 1318 | release_region(client->addr + REGION_OFFSET, REGION_LENGTH); |
943b0830 | 1319 | kfree(data); |
08e7e278 JD |
1320 | |
1321 | return 0; | |
1322 | } | |
1323 | ||
1324 | static struct i2c_driver w83627ehf_driver = { | |
cdaf7934 | 1325 | .driver = { |
87218842 | 1326 | .owner = THIS_MODULE, |
cdaf7934 LR |
1327 | .name = "w83627ehf", |
1328 | }, | |
2d8672c5 | 1329 | .attach_adapter = w83627ehf_detect, |
08e7e278 JD |
1330 | .detach_client = w83627ehf_detach_client, |
1331 | }; | |
1332 | ||
2d8672c5 | 1333 | static int __init w83627ehf_find(int sioaddr, unsigned short *addr) |
08e7e278 JD |
1334 | { |
1335 | u16 val; | |
1336 | ||
1337 | REG = sioaddr; | |
1338 | VAL = sioaddr + 1; | |
1339 | superio_enter(); | |
1340 | ||
1341 | val = (superio_inb(SIO_REG_DEVID) << 8) | |
1342 | | superio_inb(SIO_REG_DEVID + 1); | |
1343 | if ((val & SIO_ID_MASK) != SIO_W83627EHF_ID) { | |
1344 | superio_exit(); | |
1345 | return -ENODEV; | |
1346 | } | |
1347 | ||
1348 | superio_select(W83627EHF_LD_HWM); | |
1349 | val = (superio_inb(SIO_REG_ADDR) << 8) | |
1350 | | superio_inb(SIO_REG_ADDR + 1); | |
ada0c2f8 | 1351 | *addr = val & REGION_ALIGNMENT; |
2d8672c5 | 1352 | if (*addr == 0) { |
08e7e278 JD |
1353 | superio_exit(); |
1354 | return -ENODEV; | |
1355 | } | |
1356 | ||
1357 | /* Activate logical device if needed */ | |
1358 | val = superio_inb(SIO_REG_ENABLE); | |
1359 | if (!(val & 0x01)) | |
1360 | superio_outb(SIO_REG_ENABLE, val | 0x01); | |
1361 | ||
1362 | superio_exit(); | |
1363 | return 0; | |
1364 | } | |
1365 | ||
1366 | static int __init sensors_w83627ehf_init(void) | |
1367 | { | |
2d8672c5 JD |
1368 | if (w83627ehf_find(0x2e, &address) |
1369 | && w83627ehf_find(0x4e, &address)) | |
08e7e278 JD |
1370 | return -ENODEV; |
1371 | ||
fde09509 | 1372 | return i2c_isa_add_driver(&w83627ehf_driver); |
08e7e278 JD |
1373 | } |
1374 | ||
1375 | static void __exit sensors_w83627ehf_exit(void) | |
1376 | { | |
fde09509 | 1377 | i2c_isa_del_driver(&w83627ehf_driver); |
08e7e278 JD |
1378 | } |
1379 | ||
1380 | MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>"); | |
1381 | MODULE_DESCRIPTION("W83627EHF driver"); | |
1382 | MODULE_LICENSE("GPL"); | |
1383 | ||
1384 | module_init(sensors_w83627ehf_init); | |
1385 | module_exit(sensors_w83627ehf_exit); |