1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * w83791d.c - Part of lm_sensors, Linux kernel modules for hardware |
4 | * monitoring |
5 | * |
6 | * Copyright (C) 2006-2007 Charles Spirakis <bezaur@gmail.com> |
7 | */ |
8 | |
9 | /* |
10 | * Supports following chips: |
11 | * |
12 | * Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA |
13 | * w83791d 10 5 5 3 0x71 0x5ca3 yes no |
14 | * |
15 | * The w83791d chip appears to be part way between the 83781d and the |
16 | * 83792d. Thus, this file is derived from both the w83792d.c and |
17 | * w83781d.c files. |
18 | * |
19 | * The w83791g chip is the same as the w83791d but lead-free. |
20 | */ |
21 | |
22 | #include <linux/module.h> |
23 | #include <linux/init.h> |
24 | #include <linux/slab.h> |
25 | #include <linux/i2c.h> |
26 | #include <linux/hwmon.h> |
27 | #include <linux/hwmon-vid.h> |
28 | #include <linux/hwmon-sysfs.h> |
29 | #include <linux/err.h> |
30 | #include <linux/mutex.h> |
31 | #include <linux/jiffies.h> |
32 | |
33 | #define NUMBER_OF_VIN 10 |
34 | #define NUMBER_OF_FANIN 5 |
35 | #define NUMBER_OF_TEMPIN 3 |
36 | #define NUMBER_OF_PWM 5 |
37 | |
38 | /* Addresses to scan */ |
39 | static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f, |
40 | I2C_CLIENT_END }; |
41 | |
42 | /* Insmod parameters */ |
43 | |
44 | static unsigned short force_subclients[4]; |
45 | module_param_array(force_subclients, short, NULL, 0); |
46 | MODULE_PARM_DESC(force_subclients, |
47 | "List of subclient addresses: {bus, clientaddr, subclientaddr1, subclientaddr2}" ); |
48 | |
49 | static bool reset; |
50 | module_param(reset, bool, 0); |
51 | MODULE_PARM_DESC(reset, "Set to one to force a hardware chip reset" ); |
52 | |
53 | static bool init; |
54 | module_param(init, bool, 0); |
55 | MODULE_PARM_DESC(init, "Set to one to force extra software initialization" ); |
56 | |
57 | /* The W83791D registers */ |
58 | static const u8 W83791D_REG_IN[NUMBER_OF_VIN] = { |
59 | 0x20, /* VCOREA in DataSheet */ |
60 | 0x21, /* VINR0 in DataSheet */ |
61 | 0x22, /* +3.3VIN in DataSheet */ |
62 | 0x23, /* VDD5V in DataSheet */ |
63 | 0x24, /* +12VIN in DataSheet */ |
64 | 0x25, /* -12VIN in DataSheet */ |
65 | 0x26, /* -5VIN in DataSheet */ |
66 | 0xB0, /* 5VSB in DataSheet */ |
67 | 0xB1, /* VBAT in DataSheet */ |
68 | 0xB2 /* VINR1 in DataSheet */ |
69 | }; |
70 | |
71 | static const u8 W83791D_REG_IN_MAX[NUMBER_OF_VIN] = { |
72 | 0x2B, /* VCOREA High Limit in DataSheet */ |
73 | 0x2D, /* VINR0 High Limit in DataSheet */ |
74 | 0x2F, /* +3.3VIN High Limit in DataSheet */ |
75 | 0x31, /* VDD5V High Limit in DataSheet */ |
76 | 0x33, /* +12VIN High Limit in DataSheet */ |
77 | 0x35, /* -12VIN High Limit in DataSheet */ |
78 | 0x37, /* -5VIN High Limit in DataSheet */ |
79 | 0xB4, /* 5VSB High Limit in DataSheet */ |
80 | 0xB6, /* VBAT High Limit in DataSheet */ |
81 | 0xB8 /* VINR1 High Limit in DataSheet */ |
82 | }; |
83 | static const u8 W83791D_REG_IN_MIN[NUMBER_OF_VIN] = { |
84 | 0x2C, /* VCOREA Low Limit in DataSheet */ |
85 | 0x2E, /* VINR0 Low Limit in DataSheet */ |
86 | 0x30, /* +3.3VIN Low Limit in DataSheet */ |
87 | 0x32, /* VDD5V Low Limit in DataSheet */ |
88 | 0x34, /* +12VIN Low Limit in DataSheet */ |
89 | 0x36, /* -12VIN Low Limit in DataSheet */ |
90 | 0x38, /* -5VIN Low Limit in DataSheet */ |
91 | 0xB5, /* 5VSB Low Limit in DataSheet */ |
92 | 0xB7, /* VBAT Low Limit in DataSheet */ |
93 | 0xB9 /* VINR1 Low Limit in DataSheet */ |
94 | }; |
95 | static const u8 W83791D_REG_FAN[NUMBER_OF_FANIN] = { |
96 | 0x28, /* FAN 1 Count in DataSheet */ |
97 | 0x29, /* FAN 2 Count in DataSheet */ |
98 | 0x2A, /* FAN 3 Count in DataSheet */ |
99 | 0xBA, /* FAN 4 Count in DataSheet */ |
100 | 0xBB, /* FAN 5 Count in DataSheet */ |
101 | }; |
102 | static const u8 W83791D_REG_FAN_MIN[NUMBER_OF_FANIN] = { |
103 | 0x3B, /* FAN 1 Count Low Limit in DataSheet */ |
104 | 0x3C, /* FAN 2 Count Low Limit in DataSheet */ |
105 | 0x3D, /* FAN 3 Count Low Limit in DataSheet */ |
106 | 0xBC, /* FAN 4 Count Low Limit in DataSheet */ |
107 | 0xBD, /* FAN 5 Count Low Limit in DataSheet */ |
108 | }; |
109 | |
110 | static const u8 W83791D_REG_PWM[NUMBER_OF_PWM] = { |
111 | 0x81, /* PWM 1 duty cycle register in DataSheet */ |
112 | 0x83, /* PWM 2 duty cycle register in DataSheet */ |
113 | 0x94, /* PWM 3 duty cycle register in DataSheet */ |
114 | 0xA0, /* PWM 4 duty cycle register in DataSheet */ |
115 | 0xA1, /* PWM 5 duty cycle register in DataSheet */ |
116 | }; |
117 | |
118 | static const u8 W83791D_REG_TEMP_TARGET[3] = { |
119 | 0x85, /* PWM 1 target temperature for temp 1 */ |
120 | 0x86, /* PWM 2 target temperature for temp 2 */ |
121 | 0x96, /* PWM 3 target temperature for temp 3 */ |
122 | }; |
123 | |
124 | static const u8 W83791D_REG_TEMP_TOL[2] = { |
125 | 0x87, /* PWM 1/2 temperature tolerance */ |
126 | 0x97, /* PWM 3 temperature tolerance */ |
127 | }; |
128 | |
129 | static const u8 W83791D_REG_FAN_CFG[2] = { |
130 | 0x84, /* FAN 1/2 configuration */ |
131 | 0x95, /* FAN 3 configuration */ |
132 | }; |
133 | |
134 | static const u8 W83791D_REG_FAN_DIV[3] = { |
135 | 0x47, /* contains FAN1 and FAN2 Divisor */ |
136 | 0x4b, /* contains FAN3 Divisor */ |
137 | 0x5C, /* contains FAN4 and FAN5 Divisor */ |
138 | }; |
139 | |
140 | #define W83791D_REG_BANK 0x4E |
141 | #define W83791D_REG_TEMP2_CONFIG 0xC2 |
142 | #define W83791D_REG_TEMP3_CONFIG 0xCA |
143 | |
144 | static const u8 W83791D_REG_TEMP1[3] = { |
145 | 0x27, /* TEMP 1 in DataSheet */ |
146 | 0x39, /* TEMP 1 Over in DataSheet */ |
147 | 0x3A, /* TEMP 1 Hyst in DataSheet */ |
148 | }; |
149 | |
150 | static const u8 W83791D_REG_TEMP_ADD[2][6] = { |
151 | {0xC0, /* TEMP 2 in DataSheet */ |
152 | 0xC1, /* TEMP 2(0.5 deg) in DataSheet */ |
153 | 0xC5, /* TEMP 2 Over High part in DataSheet */ |
154 | 0xC6, /* TEMP 2 Over Low part in DataSheet */ |
155 | 0xC3, /* TEMP 2 Thyst High part in DataSheet */ |
156 | 0xC4}, /* TEMP 2 Thyst Low part in DataSheet */ |
157 | {0xC8, /* TEMP 3 in DataSheet */ |
158 | 0xC9, /* TEMP 3(0.5 deg) in DataSheet */ |
159 | 0xCD, /* TEMP 3 Over High part in DataSheet */ |
160 | 0xCE, /* TEMP 3 Over Low part in DataSheet */ |
161 | 0xCB, /* TEMP 3 Thyst High part in DataSheet */ |
162 | 0xCC} /* TEMP 3 Thyst Low part in DataSheet */ |
163 | }; |
164 | |
165 | #define W83791D_REG_BEEP_CONFIG 0x4D |
166 | |
167 | static const u8 W83791D_REG_BEEP_CTRL[3] = { |
168 | 0x56, /* BEEP Control Register 1 */ |
169 | 0x57, /* BEEP Control Register 2 */ |
170 | 0xA3, /* BEEP Control Register 3 */ |
171 | }; |
172 | |
173 | #define W83791D_REG_GPIO 0x15 |
174 | #define W83791D_REG_CONFIG 0x40 |
175 | #define W83791D_REG_VID_FANDIV 0x47 |
176 | #define W83791D_REG_DID_VID4 0x49 |
177 | #define W83791D_REG_WCHIPID 0x58 |
178 | #define W83791D_REG_CHIPMAN 0x4F |
179 | #define W83791D_REG_PIN 0x4B |
180 | #define W83791D_REG_I2C_SUBADDR 0x4A |
181 | |
182 | #define W83791D_REG_ALARM1 0xA9 /* realtime status register1 */ |
183 | #define W83791D_REG_ALARM2 0xAA /* realtime status register2 */ |
184 | #define W83791D_REG_ALARM3 0xAB /* realtime status register3 */ |
185 | |
186 | #define W83791D_REG_VBAT 0x5D |
187 | #define W83791D_REG_I2C_ADDR 0x48 |
188 | |
189 | /* |
190 | * The SMBus locks itself. The Winbond W83791D has a bank select register |
191 | * (index 0x4e), but the driver only accesses registers in bank 0. Since |
192 | * we don't switch banks, we don't need any special code to handle |
193 | * locking access between bank switches |
194 | */ |
195 | static inline int w83791d_read(struct i2c_client *client, u8 reg) |
196 | { |
197 | return i2c_smbus_read_byte_data(client, command: reg); |
198 | } |
199 | |
200 | static inline int w83791d_write(struct i2c_client *client, u8 reg, u8 value) |
201 | { |
202 | return i2c_smbus_write_byte_data(client, command: reg, value); |
203 | } |
204 | |
205 | /* |
206 | * The analog voltage inputs have 16mV LSB. Since the sysfs output is |
207 | * in mV as would be measured on the chip input pin, need to just |
208 | * multiply/divide by 16 to translate from/to register values. |
209 | */ |
210 | #define IN_TO_REG(val) (clamp_val((((val) + 8) / 16), 0, 255)) |
211 | #define IN_FROM_REG(val) ((val) * 16) |
212 | |
213 | static u8 fan_to_reg(long rpm, int div) |
214 | { |
215 | if (rpm == 0) |
216 | return 255; |
217 | rpm = clamp_val(rpm, 1, 1000000); |
218 | return clamp_val((1350000 + rpm * div / 2) / (rpm * div), 1, 254); |
219 | } |
220 | |
221 | #define FAN_FROM_REG(val, div) ((val) == 0 ? -1 : \ |
222 | ((val) == 255 ? 0 : \ |
223 | 1350000 / ((val) * (div)))) |
224 | |
225 | /* for temp1 which is 8-bit resolution, LSB = 1 degree Celsius */ |
226 | #define TEMP1_FROM_REG(val) ((val) * 1000) |
227 | #define TEMP1_TO_REG(val) ((val) <= -128000 ? -128 : \ |
228 | (val) >= 127000 ? 127 : \ |
229 | (val) < 0 ? ((val) - 500) / 1000 : \ |
230 | ((val) + 500) / 1000) |
231 | |
232 | /* |
233 | * for temp2 and temp3 which are 9-bit resolution, LSB = 0.5 degree Celsius |
234 | * Assumes the top 8 bits are the integral amount and the bottom 8 bits |
235 | * are the fractional amount. Since we only have 0.5 degree resolution, |
236 | * the bottom 7 bits will always be zero |
237 | */ |
238 | #define TEMP23_FROM_REG(val) ((val) / 128 * 500) |
239 | #define TEMP23_TO_REG(val) (DIV_ROUND_CLOSEST(clamp_val((val), -128000, \ |
240 | 127500), 500) * 128) |
241 | |
242 | /* for thermal cruise target temp, 7-bits, LSB = 1 degree Celsius */ |
243 | #define TARGET_TEMP_TO_REG(val) DIV_ROUND_CLOSEST(clamp_val((val), 0, 127000), \ |
244 | 1000) |
245 | |
246 | /* for thermal cruise temp tolerance, 4-bits, LSB = 1 degree Celsius */ |
247 | #define TOL_TEMP_TO_REG(val) DIV_ROUND_CLOSEST(clamp_val((val), 0, 15000), \ |
248 | 1000) |
249 | |
250 | #define BEEP_MASK_TO_REG(val) ((val) & 0xffffff) |
251 | #define BEEP_MASK_FROM_REG(val) ((val) & 0xffffff) |
252 | |
253 | #define DIV_FROM_REG(val) (1 << (val)) |
254 | |
255 | static u8 div_to_reg(int nr, long val) |
256 | { |
257 | int i; |
258 | |
259 | /* fan divisors max out at 128 */ |
260 | val = clamp_val(val, 1, 128) >> 1; |
261 | for (i = 0; i < 7; i++) { |
262 | if (val == 0) |
263 | break; |
264 | val >>= 1; |
265 | } |
266 | return (u8) i; |
267 | } |
268 | |
269 | struct w83791d_data { |
270 | struct device *hwmon_dev; |
271 | struct mutex update_lock; |
272 | |
273 | bool valid; /* true if following fields are valid */ |
274 | unsigned long last_updated; /* In jiffies */ |
275 | |
276 | /* volts */ |
277 | u8 in[NUMBER_OF_VIN]; /* Register value */ |
278 | u8 in_max[NUMBER_OF_VIN]; /* Register value */ |
279 | u8 in_min[NUMBER_OF_VIN]; /* Register value */ |
280 | |
281 | /* fans */ |
282 | u8 fan[NUMBER_OF_FANIN]; /* Register value */ |
283 | u8 fan_min[NUMBER_OF_FANIN]; /* Register value */ |
284 | u8 fan_div[NUMBER_OF_FANIN]; /* Register encoding, shifted right */ |
285 | |
286 | /* Temperature sensors */ |
287 | |
288 | s8 temp1[3]; /* current, over, thyst */ |
289 | s16 temp_add[2][3]; /* fixed point value. Top 8 bits are the |
290 | * integral part, bottom 8 bits are the |
291 | * fractional part. We only use the top |
292 | * 9 bits as the resolution is only |
293 | * to the 0.5 degree C... |
294 | * two sensors with three values |
295 | * (cur, over, hyst) |
296 | */ |
297 | |
298 | /* PWMs */ |
299 | u8 pwm[5]; /* pwm duty cycle */ |
300 | u8 pwm_enable[3]; /* pwm enable status for fan 1-3 |
301 | * (fan 4-5 only support manual mode) |
302 | */ |
303 | |
304 | u8 temp_target[3]; /* pwm 1-3 target temperature */ |
305 | u8 temp_tolerance[3]; /* pwm 1-3 temperature tolerance */ |
306 | |
307 | /* Misc */ |
308 | u32 alarms; /* realtime status register encoding,combined */ |
309 | u8 beep_enable; /* Global beep enable */ |
310 | u32 beep_mask; /* Mask off specific beeps */ |
311 | u8 vid; /* Register encoding, combined */ |
312 | u8 vrm; /* hwmon-vid */ |
313 | }; |
314 | |
315 | static int w83791d_probe(struct i2c_client *client); |
316 | static int w83791d_detect(struct i2c_client *client, |
317 | struct i2c_board_info *info); |
318 | static void w83791d_remove(struct i2c_client *client); |
319 | |
320 | static int w83791d_read(struct i2c_client *client, u8 reg); |
321 | static int w83791d_write(struct i2c_client *client, u8 reg, u8 value); |
322 | static struct w83791d_data *w83791d_update_device(struct device *dev); |
323 | |
324 | #ifdef DEBUG |
325 | static void w83791d_print_debug(struct w83791d_data *data, struct device *dev); |
326 | #endif |
327 | |
328 | static void w83791d_init_client(struct i2c_client *client); |
329 | |
330 | static const struct i2c_device_id w83791d_id[] = { |
331 | { "w83791d" , 0 }, |
332 | { } |
333 | }; |
334 | MODULE_DEVICE_TABLE(i2c, w83791d_id); |
335 | |
336 | static struct i2c_driver w83791d_driver = { |
337 | .class = I2C_CLASS_HWMON, |
338 | .driver = { |
339 | .name = "w83791d" , |
340 | }, |
341 | .probe = w83791d_probe, |
342 | .remove = w83791d_remove, |
343 | .id_table = w83791d_id, |
344 | .detect = w83791d_detect, |
345 | .address_list = normal_i2c, |
346 | }; |
347 | |
348 | /* following are the sysfs callback functions */ |
349 | #define show_in_reg(reg) \ |
350 | static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \ |
351 | char *buf) \ |
352 | { \ |
353 | struct sensor_device_attribute *sensor_attr = \ |
354 | to_sensor_dev_attr(attr); \ |
355 | struct w83791d_data *data = w83791d_update_device(dev); \ |
356 | int nr = sensor_attr->index; \ |
357 | return sprintf(buf, "%d\n", IN_FROM_REG(data->reg[nr])); \ |
358 | } |
359 | |
360 | show_in_reg(in); |
361 | show_in_reg(in_min); |
362 | show_in_reg(in_max); |
363 | |
364 | #define store_in_reg(REG, reg) \ |
365 | static ssize_t store_in_##reg(struct device *dev, \ |
366 | struct device_attribute *attr, \ |
367 | const char *buf, size_t count) \ |
368 | { \ |
369 | struct sensor_device_attribute *sensor_attr = \ |
370 | to_sensor_dev_attr(attr); \ |
371 | struct i2c_client *client = to_i2c_client(dev); \ |
372 | struct w83791d_data *data = i2c_get_clientdata(client); \ |
373 | int nr = sensor_attr->index; \ |
374 | unsigned long val; \ |
375 | int err = kstrtoul(buf, 10, &val); \ |
376 | if (err) \ |
377 | return err; \ |
378 | mutex_lock(&data->update_lock); \ |
379 | data->in_##reg[nr] = IN_TO_REG(val); \ |
380 | w83791d_write(client, W83791D_REG_IN_##REG[nr], data->in_##reg[nr]); \ |
381 | mutex_unlock(&data->update_lock); \ |
382 | \ |
383 | return count; \ |
384 | } |
385 | store_in_reg(MIN, min); |
386 | store_in_reg(MAX, max); |
387 | |
388 | static struct sensor_device_attribute sda_in_input[] = { |
389 | SENSOR_ATTR(in0_input, S_IRUGO, show_in, NULL, 0), |
390 | SENSOR_ATTR(in1_input, S_IRUGO, show_in, NULL, 1), |
391 | SENSOR_ATTR(in2_input, S_IRUGO, show_in, NULL, 2), |
392 | SENSOR_ATTR(in3_input, S_IRUGO, show_in, NULL, 3), |
393 | SENSOR_ATTR(in4_input, S_IRUGO, show_in, NULL, 4), |
394 | SENSOR_ATTR(in5_input, S_IRUGO, show_in, NULL, 5), |
395 | SENSOR_ATTR(in6_input, S_IRUGO, show_in, NULL, 6), |
396 | SENSOR_ATTR(in7_input, S_IRUGO, show_in, NULL, 7), |
397 | SENSOR_ATTR(in8_input, S_IRUGO, show_in, NULL, 8), |
398 | SENSOR_ATTR(in9_input, S_IRUGO, show_in, NULL, 9), |
399 | }; |
400 | |
401 | static struct sensor_device_attribute sda_in_min[] = { |
402 | SENSOR_ATTR(in0_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 0), |
403 | SENSOR_ATTR(in1_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 1), |
404 | SENSOR_ATTR(in2_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 2), |
405 | SENSOR_ATTR(in3_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 3), |
406 | SENSOR_ATTR(in4_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 4), |
407 | SENSOR_ATTR(in5_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 5), |
408 | SENSOR_ATTR(in6_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 6), |
409 | SENSOR_ATTR(in7_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 7), |
410 | SENSOR_ATTR(in8_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 8), |
411 | SENSOR_ATTR(in9_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 9), |
412 | }; |
413 | |
414 | static struct sensor_device_attribute sda_in_max[] = { |
415 | SENSOR_ATTR(in0_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 0), |
416 | SENSOR_ATTR(in1_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 1), |
417 | SENSOR_ATTR(in2_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 2), |
418 | SENSOR_ATTR(in3_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 3), |
419 | SENSOR_ATTR(in4_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 4), |
420 | SENSOR_ATTR(in5_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 5), |
421 | SENSOR_ATTR(in6_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 6), |
422 | SENSOR_ATTR(in7_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 7), |
423 | SENSOR_ATTR(in8_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 8), |
424 | SENSOR_ATTR(in9_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 9), |
425 | }; |
426 | |
427 | |
428 | static ssize_t show_beep(struct device *dev, struct device_attribute *attr, |
429 | char *buf) |
430 | { |
431 | struct sensor_device_attribute *sensor_attr = |
432 | to_sensor_dev_attr(attr); |
433 | struct w83791d_data *data = w83791d_update_device(dev); |
434 | int bitnr = sensor_attr->index; |
435 | |
436 | return sprintf(buf, fmt: "%d\n" , (data->beep_mask >> bitnr) & 1); |
437 | } |
438 | |
439 | static ssize_t store_beep(struct device *dev, struct device_attribute *attr, |
440 | const char *buf, size_t count) |
441 | { |
442 | struct sensor_device_attribute *sensor_attr = |
443 | to_sensor_dev_attr(attr); |
444 | struct i2c_client *client = to_i2c_client(dev); |
445 | struct w83791d_data *data = i2c_get_clientdata(client); |
446 | int bitnr = sensor_attr->index; |
447 | int bytenr = bitnr / 8; |
448 | unsigned long val; |
449 | int err; |
450 | |
451 | err = kstrtoul(s: buf, base: 10, res: &val); |
452 | if (err) |
453 | return err; |
454 | |
455 | val = val ? 1 : 0; |
456 | |
457 | mutex_lock(&data->update_lock); |
458 | |
459 | data->beep_mask &= ~(0xff << (bytenr * 8)); |
460 | data->beep_mask |= w83791d_read(client, reg: W83791D_REG_BEEP_CTRL[bytenr]) |
461 | << (bytenr * 8); |
462 | |
463 | data->beep_mask &= ~(1 << bitnr); |
464 | data->beep_mask |= val << bitnr; |
465 | |
466 | w83791d_write(client, reg: W83791D_REG_BEEP_CTRL[bytenr], |
467 | value: (data->beep_mask >> (bytenr * 8)) & 0xff); |
468 | |
469 | mutex_unlock(lock: &data->update_lock); |
470 | |
471 | return count; |
472 | } |
473 | |
474 | static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, |
475 | char *buf) |
476 | { |
477 | struct sensor_device_attribute *sensor_attr = |
478 | to_sensor_dev_attr(attr); |
479 | struct w83791d_data *data = w83791d_update_device(dev); |
480 | int bitnr = sensor_attr->index; |
481 | |
482 | return sprintf(buf, fmt: "%d\n" , (data->alarms >> bitnr) & 1); |
483 | } |
484 | |
485 | /* |
486 | * Note: The bitmask for the beep enable/disable is different than |
487 | * the bitmask for the alarm. |
488 | */ |
489 | static struct sensor_device_attribute sda_in_beep[] = { |
490 | SENSOR_ATTR(in0_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 0), |
491 | SENSOR_ATTR(in1_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 13), |
492 | SENSOR_ATTR(in2_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 2), |
493 | SENSOR_ATTR(in3_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 3), |
494 | SENSOR_ATTR(in4_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 8), |
495 | SENSOR_ATTR(in5_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 9), |
496 | SENSOR_ATTR(in6_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 10), |
497 | SENSOR_ATTR(in7_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 16), |
498 | SENSOR_ATTR(in8_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 17), |
499 | SENSOR_ATTR(in9_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 14), |
500 | }; |
501 | |
502 | static struct sensor_device_attribute sda_in_alarm[] = { |
503 | SENSOR_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0), |
504 | SENSOR_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1), |
505 | SENSOR_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2), |
506 | SENSOR_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3), |
507 | SENSOR_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8), |
508 | SENSOR_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 9), |
509 | SENSOR_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 10), |
510 | SENSOR_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 19), |
511 | SENSOR_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 20), |
512 | SENSOR_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, 14), |
513 | }; |
514 | |
515 | #define show_fan_reg(reg) \ |
516 | static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \ |
517 | char *buf) \ |
518 | { \ |
519 | struct sensor_device_attribute *sensor_attr = \ |
520 | to_sensor_dev_attr(attr); \ |
521 | struct w83791d_data *data = w83791d_update_device(dev); \ |
522 | int nr = sensor_attr->index; \ |
523 | return sprintf(buf, "%d\n", \ |
524 | FAN_FROM_REG(data->reg[nr], DIV_FROM_REG(data->fan_div[nr]))); \ |
525 | } |
526 | |
527 | show_fan_reg(fan); |
528 | show_fan_reg(fan_min); |
529 | |
530 | static ssize_t store_fan_min(struct device *dev, struct device_attribute *attr, |
531 | const char *buf, size_t count) |
532 | { |
533 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
534 | struct i2c_client *client = to_i2c_client(dev); |
535 | struct w83791d_data *data = i2c_get_clientdata(client); |
536 | int nr = sensor_attr->index; |
537 | unsigned long val; |
538 | int err; |
539 | |
540 | err = kstrtoul(s: buf, base: 10, res: &val); |
541 | if (err) |
542 | return err; |
543 | |
544 | mutex_lock(&data->update_lock); |
545 | data->fan_min[nr] = fan_to_reg(rpm: val, DIV_FROM_REG(data->fan_div[nr])); |
546 | w83791d_write(client, reg: W83791D_REG_FAN_MIN[nr], value: data->fan_min[nr]); |
547 | mutex_unlock(lock: &data->update_lock); |
548 | |
549 | return count; |
550 | } |
551 | |
552 | static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr, |
553 | char *buf) |
554 | { |
555 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
556 | int nr = sensor_attr->index; |
557 | struct w83791d_data *data = w83791d_update_device(dev); |
558 | return sprintf(buf, fmt: "%u\n" , DIV_FROM_REG(data->fan_div[nr])); |
559 | } |
560 | |
561 | /* |
562 | * Note: we save and restore the fan minimum here, because its value is |
563 | * determined in part by the fan divisor. This follows the principle of |
564 | * least surprise; the user doesn't expect the fan minimum to change just |
565 | * because the divisor changed. |
566 | */ |
567 | static ssize_t store_fan_div(struct device *dev, struct device_attribute *attr, |
568 | const char *buf, size_t count) |
569 | { |
570 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
571 | struct i2c_client *client = to_i2c_client(dev); |
572 | struct w83791d_data *data = i2c_get_clientdata(client); |
573 | int nr = sensor_attr->index; |
574 | unsigned long min; |
575 | u8 tmp_fan_div; |
576 | u8 fan_div_reg; |
577 | u8 vbat_reg; |
578 | int indx = 0; |
579 | u8 keep_mask = 0; |
580 | u8 new_shift = 0; |
581 | unsigned long val; |
582 | int err; |
583 | |
584 | err = kstrtoul(s: buf, base: 10, res: &val); |
585 | if (err) |
586 | return err; |
587 | |
588 | /* Save fan_min */ |
589 | min = FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr])); |
590 | |
591 | mutex_lock(&data->update_lock); |
592 | data->fan_div[nr] = div_to_reg(nr, val); |
593 | |
594 | switch (nr) { |
595 | case 0: |
596 | indx = 0; |
597 | keep_mask = 0xcf; |
598 | new_shift = 4; |
599 | break; |
600 | case 1: |
601 | indx = 0; |
602 | keep_mask = 0x3f; |
603 | new_shift = 6; |
604 | break; |
605 | case 2: |
606 | indx = 1; |
607 | keep_mask = 0x3f; |
608 | new_shift = 6; |
609 | break; |
610 | case 3: |
611 | indx = 2; |
612 | keep_mask = 0xf8; |
613 | new_shift = 0; |
614 | break; |
615 | case 4: |
616 | indx = 2; |
617 | keep_mask = 0x8f; |
618 | new_shift = 4; |
619 | break; |
620 | #ifdef DEBUG |
621 | default: |
622 | dev_warn(dev, "store_fan_div: Unexpected nr seen: %d\n" , nr); |
623 | count = -EINVAL; |
624 | goto err_exit; |
625 | #endif |
626 | } |
627 | |
628 | fan_div_reg = w83791d_read(client, reg: W83791D_REG_FAN_DIV[indx]) |
629 | & keep_mask; |
630 | tmp_fan_div = (data->fan_div[nr] << new_shift) & ~keep_mask; |
631 | |
632 | w83791d_write(client, reg: W83791D_REG_FAN_DIV[indx], |
633 | value: fan_div_reg | tmp_fan_div); |
634 | |
635 | /* Bit 2 of fans 0-2 is stored in the vbat register (bits 5-7) */ |
636 | if (nr < 3) { |
637 | keep_mask = ~(1 << (nr + 5)); |
638 | vbat_reg = w83791d_read(client, W83791D_REG_VBAT) |
639 | & keep_mask; |
640 | tmp_fan_div = (data->fan_div[nr] << (3 + nr)) & ~keep_mask; |
641 | w83791d_write(client, W83791D_REG_VBAT, |
642 | value: vbat_reg | tmp_fan_div); |
643 | } |
644 | |
645 | /* Restore fan_min */ |
646 | data->fan_min[nr] = fan_to_reg(rpm: min, DIV_FROM_REG(data->fan_div[nr])); |
647 | w83791d_write(client, reg: W83791D_REG_FAN_MIN[nr], value: data->fan_min[nr]); |
648 | |
649 | #ifdef DEBUG |
650 | err_exit: |
651 | #endif |
652 | mutex_unlock(lock: &data->update_lock); |
653 | |
654 | return count; |
655 | } |
656 | |
657 | static struct sensor_device_attribute sda_fan_input[] = { |
658 | SENSOR_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0), |
659 | SENSOR_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1), |
660 | SENSOR_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2), |
661 | SENSOR_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3), |
662 | SENSOR_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 4), |
663 | }; |
664 | |
665 | static struct sensor_device_attribute sda_fan_min[] = { |
666 | SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, |
667 | show_fan_min, store_fan_min, 0), |
668 | SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO, |
669 | show_fan_min, store_fan_min, 1), |
670 | SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO, |
671 | show_fan_min, store_fan_min, 2), |
672 | SENSOR_ATTR(fan4_min, S_IWUSR | S_IRUGO, |
673 | show_fan_min, store_fan_min, 3), |
674 | SENSOR_ATTR(fan5_min, S_IWUSR | S_IRUGO, |
675 | show_fan_min, store_fan_min, 4), |
676 | }; |
677 | |
678 | static struct sensor_device_attribute sda_fan_div[] = { |
679 | SENSOR_ATTR(fan1_div, S_IWUSR | S_IRUGO, |
680 | show_fan_div, store_fan_div, 0), |
681 | SENSOR_ATTR(fan2_div, S_IWUSR | S_IRUGO, |
682 | show_fan_div, store_fan_div, 1), |
683 | SENSOR_ATTR(fan3_div, S_IWUSR | S_IRUGO, |
684 | show_fan_div, store_fan_div, 2), |
685 | SENSOR_ATTR(fan4_div, S_IWUSR | S_IRUGO, |
686 | show_fan_div, store_fan_div, 3), |
687 | SENSOR_ATTR(fan5_div, S_IWUSR | S_IRUGO, |
688 | show_fan_div, store_fan_div, 4), |
689 | }; |
690 | |
691 | static struct sensor_device_attribute sda_fan_beep[] = { |
692 | SENSOR_ATTR(fan1_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 6), |
693 | SENSOR_ATTR(fan2_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 7), |
694 | SENSOR_ATTR(fan3_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 11), |
695 | SENSOR_ATTR(fan4_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 21), |
696 | SENSOR_ATTR(fan5_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 22), |
697 | }; |
698 | |
699 | static struct sensor_device_attribute sda_fan_alarm[] = { |
700 | SENSOR_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6), |
701 | SENSOR_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7), |
702 | SENSOR_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 11), |
703 | SENSOR_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 21), |
704 | SENSOR_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 22), |
705 | }; |
706 | |
707 | /* read/write PWMs */ |
708 | static ssize_t show_pwm(struct device *dev, struct device_attribute *attr, |
709 | char *buf) |
710 | { |
711 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
712 | int nr = sensor_attr->index; |
713 | struct w83791d_data *data = w83791d_update_device(dev); |
714 | return sprintf(buf, fmt: "%u\n" , data->pwm[nr]); |
715 | } |
716 | |
717 | static ssize_t store_pwm(struct device *dev, struct device_attribute *attr, |
718 | const char *buf, size_t count) |
719 | { |
720 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
721 | struct i2c_client *client = to_i2c_client(dev); |
722 | struct w83791d_data *data = i2c_get_clientdata(client); |
723 | int nr = sensor_attr->index; |
724 | unsigned long val; |
725 | |
726 | if (kstrtoul(s: buf, base: 10, res: &val)) |
727 | return -EINVAL; |
728 | |
729 | mutex_lock(&data->update_lock); |
730 | data->pwm[nr] = clamp_val(val, 0, 255); |
731 | w83791d_write(client, reg: W83791D_REG_PWM[nr], value: data->pwm[nr]); |
732 | mutex_unlock(lock: &data->update_lock); |
733 | return count; |
734 | } |
735 | |
736 | static struct sensor_device_attribute sda_pwm[] = { |
737 | SENSOR_ATTR(pwm1, S_IWUSR | S_IRUGO, |
738 | show_pwm, store_pwm, 0), |
739 | SENSOR_ATTR(pwm2, S_IWUSR | S_IRUGO, |
740 | show_pwm, store_pwm, 1), |
741 | SENSOR_ATTR(pwm3, S_IWUSR | S_IRUGO, |
742 | show_pwm, store_pwm, 2), |
743 | SENSOR_ATTR(pwm4, S_IWUSR | S_IRUGO, |
744 | show_pwm, store_pwm, 3), |
745 | SENSOR_ATTR(pwm5, S_IWUSR | S_IRUGO, |
746 | show_pwm, store_pwm, 4), |
747 | }; |
748 | |
749 | static ssize_t show_pwmenable(struct device *dev, struct device_attribute *attr, |
750 | char *buf) |
751 | { |
752 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
753 | int nr = sensor_attr->index; |
754 | struct w83791d_data *data = w83791d_update_device(dev); |
755 | return sprintf(buf, fmt: "%u\n" , data->pwm_enable[nr] + 1); |
756 | } |
757 | |
758 | static ssize_t store_pwmenable(struct device *dev, |
759 | struct device_attribute *attr, const char *buf, size_t count) |
760 | { |
761 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
762 | struct i2c_client *client = to_i2c_client(dev); |
763 | struct w83791d_data *data = i2c_get_clientdata(client); |
764 | int nr = sensor_attr->index; |
765 | unsigned long val; |
766 | u8 reg_cfg_tmp; |
767 | u8 reg_idx = 0; |
768 | u8 val_shift = 0; |
769 | u8 keep_mask = 0; |
770 | |
771 | int ret = kstrtoul(s: buf, base: 10, res: &val); |
772 | |
773 | if (ret || val < 1 || val > 3) |
774 | return -EINVAL; |
775 | |
776 | mutex_lock(&data->update_lock); |
777 | data->pwm_enable[nr] = val - 1; |
778 | switch (nr) { |
779 | case 0: |
780 | reg_idx = 0; |
781 | val_shift = 2; |
782 | keep_mask = 0xf3; |
783 | break; |
784 | case 1: |
785 | reg_idx = 0; |
786 | val_shift = 4; |
787 | keep_mask = 0xcf; |
788 | break; |
789 | case 2: |
790 | reg_idx = 1; |
791 | val_shift = 2; |
792 | keep_mask = 0xf3; |
793 | break; |
794 | } |
795 | |
796 | reg_cfg_tmp = w83791d_read(client, reg: W83791D_REG_FAN_CFG[reg_idx]); |
797 | reg_cfg_tmp = (reg_cfg_tmp & keep_mask) | |
798 | data->pwm_enable[nr] << val_shift; |
799 | |
800 | w83791d_write(client, reg: W83791D_REG_FAN_CFG[reg_idx], value: reg_cfg_tmp); |
801 | mutex_unlock(lock: &data->update_lock); |
802 | |
803 | return count; |
804 | } |
805 | static struct sensor_device_attribute sda_pwmenable[] = { |
806 | SENSOR_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, |
807 | show_pwmenable, store_pwmenable, 0), |
808 | SENSOR_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, |
809 | show_pwmenable, store_pwmenable, 1), |
810 | SENSOR_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, |
811 | show_pwmenable, store_pwmenable, 2), |
812 | }; |
813 | |
814 | /* For Smart Fan I / Thermal Cruise */ |
815 | static ssize_t show_temp_target(struct device *dev, |
816 | struct device_attribute *attr, char *buf) |
817 | { |
818 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
819 | struct w83791d_data *data = w83791d_update_device(dev); |
820 | int nr = sensor_attr->index; |
821 | return sprintf(buf, fmt: "%d\n" , TEMP1_FROM_REG(data->temp_target[nr])); |
822 | } |
823 | |
824 | static ssize_t store_temp_target(struct device *dev, |
825 | struct device_attribute *attr, const char *buf, size_t count) |
826 | { |
827 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
828 | struct i2c_client *client = to_i2c_client(dev); |
829 | struct w83791d_data *data = i2c_get_clientdata(client); |
830 | int nr = sensor_attr->index; |
831 | long val; |
832 | u8 target_mask; |
833 | |
834 | if (kstrtol(s: buf, base: 10, res: &val)) |
835 | return -EINVAL; |
836 | |
837 | mutex_lock(&data->update_lock); |
838 | data->temp_target[nr] = TARGET_TEMP_TO_REG(val); |
839 | target_mask = w83791d_read(client, |
840 | reg: W83791D_REG_TEMP_TARGET[nr]) & 0x80; |
841 | w83791d_write(client, reg: W83791D_REG_TEMP_TARGET[nr], |
842 | value: data->temp_target[nr] | target_mask); |
843 | mutex_unlock(lock: &data->update_lock); |
844 | return count; |
845 | } |
846 | |
847 | static struct sensor_device_attribute sda_temp_target[] = { |
848 | SENSOR_ATTR(temp1_target, S_IWUSR | S_IRUGO, |
849 | show_temp_target, store_temp_target, 0), |
850 | SENSOR_ATTR(temp2_target, S_IWUSR | S_IRUGO, |
851 | show_temp_target, store_temp_target, 1), |
852 | SENSOR_ATTR(temp3_target, S_IWUSR | S_IRUGO, |
853 | show_temp_target, store_temp_target, 2), |
854 | }; |
855 | |
856 | static ssize_t show_temp_tolerance(struct device *dev, |
857 | struct device_attribute *attr, char *buf) |
858 | { |
859 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
860 | struct w83791d_data *data = w83791d_update_device(dev); |
861 | int nr = sensor_attr->index; |
862 | return sprintf(buf, fmt: "%d\n" , TEMP1_FROM_REG(data->temp_tolerance[nr])); |
863 | } |
864 | |
865 | static ssize_t store_temp_tolerance(struct device *dev, |
866 | struct device_attribute *attr, const char *buf, size_t count) |
867 | { |
868 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
869 | struct i2c_client *client = to_i2c_client(dev); |
870 | struct w83791d_data *data = i2c_get_clientdata(client); |
871 | int nr = sensor_attr->index; |
872 | unsigned long val; |
873 | u8 target_mask; |
874 | u8 reg_idx = 0; |
875 | u8 val_shift = 0; |
876 | u8 keep_mask = 0; |
877 | |
878 | if (kstrtoul(s: buf, base: 10, res: &val)) |
879 | return -EINVAL; |
880 | |
881 | switch (nr) { |
882 | case 0: |
883 | reg_idx = 0; |
884 | val_shift = 0; |
885 | keep_mask = 0xf0; |
886 | break; |
887 | case 1: |
888 | reg_idx = 0; |
889 | val_shift = 4; |
890 | keep_mask = 0x0f; |
891 | break; |
892 | case 2: |
893 | reg_idx = 1; |
894 | val_shift = 0; |
895 | keep_mask = 0xf0; |
896 | break; |
897 | } |
898 | |
899 | mutex_lock(&data->update_lock); |
900 | data->temp_tolerance[nr] = TOL_TEMP_TO_REG(val); |
901 | target_mask = w83791d_read(client, |
902 | reg: W83791D_REG_TEMP_TOL[reg_idx]) & keep_mask; |
903 | w83791d_write(client, reg: W83791D_REG_TEMP_TOL[reg_idx], |
904 | value: (data->temp_tolerance[nr] << val_shift) | target_mask); |
905 | mutex_unlock(lock: &data->update_lock); |
906 | return count; |
907 | } |
908 | |
909 | static struct sensor_device_attribute sda_temp_tolerance[] = { |
910 | SENSOR_ATTR(temp1_tolerance, S_IWUSR | S_IRUGO, |
911 | show_temp_tolerance, store_temp_tolerance, 0), |
912 | SENSOR_ATTR(temp2_tolerance, S_IWUSR | S_IRUGO, |
913 | show_temp_tolerance, store_temp_tolerance, 1), |
914 | SENSOR_ATTR(temp3_tolerance, S_IWUSR | S_IRUGO, |
915 | show_temp_tolerance, store_temp_tolerance, 2), |
916 | }; |
917 | |
918 | /* read/write the temperature1, includes measured value and limits */ |
919 | static ssize_t show_temp1(struct device *dev, struct device_attribute *devattr, |
920 | char *buf) |
921 | { |
922 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
923 | struct w83791d_data *data = w83791d_update_device(dev); |
924 | return sprintf(buf, fmt: "%d\n" , TEMP1_FROM_REG(data->temp1[attr->index])); |
925 | } |
926 | |
927 | static ssize_t store_temp1(struct device *dev, struct device_attribute *devattr, |
928 | const char *buf, size_t count) |
929 | { |
930 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
931 | struct i2c_client *client = to_i2c_client(dev); |
932 | struct w83791d_data *data = i2c_get_clientdata(client); |
933 | int nr = attr->index; |
934 | long val; |
935 | int err; |
936 | |
937 | err = kstrtol(s: buf, base: 10, res: &val); |
938 | if (err) |
939 | return err; |
940 | |
941 | mutex_lock(&data->update_lock); |
942 | data->temp1[nr] = TEMP1_TO_REG(val); |
943 | w83791d_write(client, reg: W83791D_REG_TEMP1[nr], value: data->temp1[nr]); |
944 | mutex_unlock(lock: &data->update_lock); |
945 | return count; |
946 | } |
947 | |
948 | /* read/write temperature2-3, includes measured value and limits */ |
949 | static ssize_t show_temp23(struct device *dev, struct device_attribute *devattr, |
950 | char *buf) |
951 | { |
952 | struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr); |
953 | struct w83791d_data *data = w83791d_update_device(dev); |
954 | int nr = attr->nr; |
955 | int index = attr->index; |
956 | return sprintf(buf, fmt: "%d\n" , TEMP23_FROM_REG(data->temp_add[nr][index])); |
957 | } |
958 | |
959 | static ssize_t store_temp23(struct device *dev, |
960 | struct device_attribute *devattr, |
961 | const char *buf, size_t count) |
962 | { |
963 | struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr); |
964 | struct i2c_client *client = to_i2c_client(dev); |
965 | struct w83791d_data *data = i2c_get_clientdata(client); |
966 | long val; |
967 | int err; |
968 | int nr = attr->nr; |
969 | int index = attr->index; |
970 | |
971 | err = kstrtol(s: buf, base: 10, res: &val); |
972 | if (err) |
973 | return err; |
974 | |
975 | mutex_lock(&data->update_lock); |
976 | data->temp_add[nr][index] = TEMP23_TO_REG(val); |
977 | w83791d_write(client, reg: W83791D_REG_TEMP_ADD[nr][index * 2], |
978 | value: data->temp_add[nr][index] >> 8); |
979 | w83791d_write(client, reg: W83791D_REG_TEMP_ADD[nr][index * 2 + 1], |
980 | value: data->temp_add[nr][index] & 0x80); |
981 | mutex_unlock(lock: &data->update_lock); |
982 | |
983 | return count; |
984 | } |
985 | |
986 | static struct sensor_device_attribute_2 sda_temp_input[] = { |
987 | SENSOR_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0), |
988 | SENSOR_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0), |
989 | SENSOR_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0), |
990 | }; |
991 | |
992 | static struct sensor_device_attribute_2 sda_temp_max[] = { |
993 | SENSOR_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, |
994 | show_temp1, store_temp1, 0, 1), |
995 | SENSOR_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, |
996 | show_temp23, store_temp23, 0, 1), |
997 | SENSOR_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, |
998 | show_temp23, store_temp23, 1, 1), |
999 | }; |
1000 | |
1001 | static struct sensor_device_attribute_2 sda_temp_max_hyst[] = { |
1002 | SENSOR_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR, |
1003 | show_temp1, store_temp1, 0, 2), |
1004 | SENSOR_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR, |
1005 | show_temp23, store_temp23, 0, 2), |
1006 | SENSOR_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR, |
1007 | show_temp23, store_temp23, 1, 2), |
1008 | }; |
1009 | |
1010 | /* |
1011 | * Note: The bitmask for the beep enable/disable is different than |
1012 | * the bitmask for the alarm. |
1013 | */ |
1014 | static struct sensor_device_attribute sda_temp_beep[] = { |
1015 | SENSOR_ATTR(temp1_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 4), |
1016 | SENSOR_ATTR(temp2_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 5), |
1017 | SENSOR_ATTR(temp3_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 1), |
1018 | }; |
1019 | |
1020 | static struct sensor_device_attribute sda_temp_alarm[] = { |
1021 | SENSOR_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4), |
1022 | SENSOR_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5), |
1023 | SENSOR_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13), |
1024 | }; |
1025 | |
1026 | /* get realtime status of all sensors items: voltage, temp, fan */ |
1027 | static ssize_t alarms_show(struct device *dev, struct device_attribute *attr, |
1028 | char *buf) |
1029 | { |
1030 | struct w83791d_data *data = w83791d_update_device(dev); |
1031 | return sprintf(buf, fmt: "%u\n" , data->alarms); |
1032 | } |
1033 | |
1034 | static DEVICE_ATTR_RO(alarms); |
1035 | |
1036 | /* Beep control */ |
1037 | |
1038 | #define GLOBAL_BEEP_ENABLE_SHIFT 15 |
1039 | #define GLOBAL_BEEP_ENABLE_MASK (1 << GLOBAL_BEEP_ENABLE_SHIFT) |
1040 | |
1041 | static ssize_t show_beep_enable(struct device *dev, |
1042 | struct device_attribute *attr, char *buf) |
1043 | { |
1044 | struct w83791d_data *data = w83791d_update_device(dev); |
1045 | return sprintf(buf, fmt: "%d\n" , data->beep_enable); |
1046 | } |
1047 | |
1048 | static ssize_t show_beep_mask(struct device *dev, |
1049 | struct device_attribute *attr, char *buf) |
1050 | { |
1051 | struct w83791d_data *data = w83791d_update_device(dev); |
1052 | return sprintf(buf, fmt: "%d\n" , BEEP_MASK_FROM_REG(data->beep_mask)); |
1053 | } |
1054 | |
1055 | |
1056 | static ssize_t store_beep_mask(struct device *dev, |
1057 | struct device_attribute *attr, |
1058 | const char *buf, size_t count) |
1059 | { |
1060 | struct i2c_client *client = to_i2c_client(dev); |
1061 | struct w83791d_data *data = i2c_get_clientdata(client); |
1062 | int i; |
1063 | long val; |
1064 | int err; |
1065 | |
1066 | err = kstrtol(s: buf, base: 10, res: &val); |
1067 | if (err) |
1068 | return err; |
1069 | |
1070 | mutex_lock(&data->update_lock); |
1071 | |
1072 | /* |
1073 | * The beep_enable state overrides any enabling request from |
1074 | * the masks |
1075 | */ |
1076 | data->beep_mask = BEEP_MASK_TO_REG(val) & ~GLOBAL_BEEP_ENABLE_MASK; |
1077 | data->beep_mask |= (data->beep_enable << GLOBAL_BEEP_ENABLE_SHIFT); |
1078 | |
1079 | val = data->beep_mask; |
1080 | |
1081 | for (i = 0; i < 3; i++) { |
1082 | w83791d_write(client, reg: W83791D_REG_BEEP_CTRL[i], value: (val & 0xff)); |
1083 | val >>= 8; |
1084 | } |
1085 | |
1086 | mutex_unlock(lock: &data->update_lock); |
1087 | |
1088 | return count; |
1089 | } |
1090 | |
1091 | static ssize_t store_beep_enable(struct device *dev, |
1092 | struct device_attribute *attr, |
1093 | const char *buf, size_t count) |
1094 | { |
1095 | struct i2c_client *client = to_i2c_client(dev); |
1096 | struct w83791d_data *data = i2c_get_clientdata(client); |
1097 | long val; |
1098 | int err; |
1099 | |
1100 | err = kstrtol(s: buf, base: 10, res: &val); |
1101 | if (err) |
1102 | return err; |
1103 | |
1104 | mutex_lock(&data->update_lock); |
1105 | |
1106 | data->beep_enable = val ? 1 : 0; |
1107 | |
1108 | /* Keep the full mask value in sync with the current enable */ |
1109 | data->beep_mask &= ~GLOBAL_BEEP_ENABLE_MASK; |
1110 | data->beep_mask |= (data->beep_enable << GLOBAL_BEEP_ENABLE_SHIFT); |
1111 | |
1112 | /* |
1113 | * The global control is in the second beep control register |
1114 | * so only need to update that register |
1115 | */ |
1116 | val = (data->beep_mask >> 8) & 0xff; |
1117 | |
1118 | w83791d_write(client, reg: W83791D_REG_BEEP_CTRL[1], value: val); |
1119 | |
1120 | mutex_unlock(lock: &data->update_lock); |
1121 | |
1122 | return count; |
1123 | } |
1124 | |
1125 | static struct sensor_device_attribute sda_beep_ctrl[] = { |
1126 | SENSOR_ATTR(beep_enable, S_IRUGO | S_IWUSR, |
1127 | show_beep_enable, store_beep_enable, 0), |
1128 | SENSOR_ATTR(beep_mask, S_IRUGO | S_IWUSR, |
1129 | show_beep_mask, store_beep_mask, 1) |
1130 | }; |
1131 | |
1132 | /* cpu voltage regulation information */ |
1133 | static ssize_t cpu0_vid_show(struct device *dev, |
1134 | struct device_attribute *attr, char *buf) |
1135 | { |
1136 | struct w83791d_data *data = w83791d_update_device(dev); |
1137 | return sprintf(buf, fmt: "%d\n" , vid_from_reg(val: data->vid, vrm: data->vrm)); |
1138 | } |
1139 | |
1140 | static DEVICE_ATTR_RO(cpu0_vid); |
1141 | |
1142 | static ssize_t vrm_show(struct device *dev, struct device_attribute *attr, |
1143 | char *buf) |
1144 | { |
1145 | struct w83791d_data *data = dev_get_drvdata(dev); |
1146 | return sprintf(buf, fmt: "%d\n" , data->vrm); |
1147 | } |
1148 | |
1149 | static ssize_t vrm_store(struct device *dev, struct device_attribute *attr, |
1150 | const char *buf, size_t count) |
1151 | { |
1152 | struct w83791d_data *data = dev_get_drvdata(dev); |
1153 | unsigned long val; |
1154 | int err; |
1155 | |
1156 | /* |
1157 | * No lock needed as vrm is internal to the driver |
1158 | * (not read from a chip register) and so is not |
1159 | * updated in w83791d_update_device() |
1160 | */ |
1161 | |
1162 | err = kstrtoul(s: buf, base: 10, res: &val); |
1163 | if (err) |
1164 | return err; |
1165 | |
1166 | if (val > 255) |
1167 | return -EINVAL; |
1168 | |
1169 | data->vrm = val; |
1170 | return count; |
1171 | } |
1172 | |
1173 | static DEVICE_ATTR_RW(vrm); |
1174 | |
1175 | #define IN_UNIT_ATTRS(X) \ |
1176 | &sda_in_input[X].dev_attr.attr, \ |
1177 | &sda_in_min[X].dev_attr.attr, \ |
1178 | &sda_in_max[X].dev_attr.attr, \ |
1179 | &sda_in_beep[X].dev_attr.attr, \ |
1180 | &sda_in_alarm[X].dev_attr.attr |
1181 | |
1182 | #define FAN_UNIT_ATTRS(X) \ |
1183 | &sda_fan_input[X].dev_attr.attr, \ |
1184 | &sda_fan_min[X].dev_attr.attr, \ |
1185 | &sda_fan_div[X].dev_attr.attr, \ |
1186 | &sda_fan_beep[X].dev_attr.attr, \ |
1187 | &sda_fan_alarm[X].dev_attr.attr |
1188 | |
1189 | #define TEMP_UNIT_ATTRS(X) \ |
1190 | &sda_temp_input[X].dev_attr.attr, \ |
1191 | &sda_temp_max[X].dev_attr.attr, \ |
1192 | &sda_temp_max_hyst[X].dev_attr.attr, \ |
1193 | &sda_temp_beep[X].dev_attr.attr, \ |
1194 | &sda_temp_alarm[X].dev_attr.attr |
1195 | |
1196 | static struct attribute *w83791d_attributes[] = { |
1197 | IN_UNIT_ATTRS(0), |
1198 | IN_UNIT_ATTRS(1), |
1199 | IN_UNIT_ATTRS(2), |
1200 | IN_UNIT_ATTRS(3), |
1201 | IN_UNIT_ATTRS(4), |
1202 | IN_UNIT_ATTRS(5), |
1203 | IN_UNIT_ATTRS(6), |
1204 | IN_UNIT_ATTRS(7), |
1205 | IN_UNIT_ATTRS(8), |
1206 | IN_UNIT_ATTRS(9), |
1207 | FAN_UNIT_ATTRS(0), |
1208 | FAN_UNIT_ATTRS(1), |
1209 | FAN_UNIT_ATTRS(2), |
1210 | TEMP_UNIT_ATTRS(0), |
1211 | TEMP_UNIT_ATTRS(1), |
1212 | TEMP_UNIT_ATTRS(2), |
1213 | &dev_attr_alarms.attr, |
1214 | &sda_beep_ctrl[0].dev_attr.attr, |
1215 | &sda_beep_ctrl[1].dev_attr.attr, |
1216 | &dev_attr_cpu0_vid.attr, |
1217 | &dev_attr_vrm.attr, |
1218 | &sda_pwm[0].dev_attr.attr, |
1219 | &sda_pwm[1].dev_attr.attr, |
1220 | &sda_pwm[2].dev_attr.attr, |
1221 | &sda_pwmenable[0].dev_attr.attr, |
1222 | &sda_pwmenable[1].dev_attr.attr, |
1223 | &sda_pwmenable[2].dev_attr.attr, |
1224 | &sda_temp_target[0].dev_attr.attr, |
1225 | &sda_temp_target[1].dev_attr.attr, |
1226 | &sda_temp_target[2].dev_attr.attr, |
1227 | &sda_temp_tolerance[0].dev_attr.attr, |
1228 | &sda_temp_tolerance[1].dev_attr.attr, |
1229 | &sda_temp_tolerance[2].dev_attr.attr, |
1230 | NULL |
1231 | }; |
1232 | |
1233 | static const struct attribute_group w83791d_group = { |
1234 | .attrs = w83791d_attributes, |
1235 | }; |
1236 | |
1237 | /* |
1238 | * Separate group of attributes for fan/pwm 4-5. Their pins can also be |
1239 | * in use for GPIO in which case their sysfs-interface should not be made |
1240 | * available |
1241 | */ |
1242 | static struct attribute *w83791d_attributes_fanpwm45[] = { |
1243 | FAN_UNIT_ATTRS(3), |
1244 | FAN_UNIT_ATTRS(4), |
1245 | &sda_pwm[3].dev_attr.attr, |
1246 | &sda_pwm[4].dev_attr.attr, |
1247 | NULL |
1248 | }; |
1249 | |
1250 | static const struct attribute_group w83791d_group_fanpwm45 = { |
1251 | .attrs = w83791d_attributes_fanpwm45, |
1252 | }; |
1253 | |
1254 | static int w83791d_detect_subclients(struct i2c_client *client) |
1255 | { |
1256 | struct i2c_adapter *adapter = client->adapter; |
1257 | int address = client->addr; |
1258 | int i, id; |
1259 | u8 val; |
1260 | |
1261 | id = i2c_adapter_id(adap: adapter); |
1262 | if (force_subclients[0] == id && force_subclients[1] == address) { |
1263 | for (i = 2; i <= 3; i++) { |
1264 | if (force_subclients[i] < 0x48 || |
1265 | force_subclients[i] > 0x4f) { |
1266 | dev_err(&client->dev, |
1267 | "invalid subclient " |
1268 | "address %d; must be 0x48-0x4f\n" , |
1269 | force_subclients[i]); |
1270 | return -ENODEV; |
1271 | } |
1272 | } |
1273 | w83791d_write(client, W83791D_REG_I2C_SUBADDR, |
1274 | value: (force_subclients[2] & 0x07) | |
1275 | ((force_subclients[3] & 0x07) << 4)); |
1276 | } |
1277 | |
1278 | val = w83791d_read(client, W83791D_REG_I2C_SUBADDR); |
1279 | |
1280 | if (!(val & 0x88) && (val & 0x7) == ((val >> 4) & 0x7)) { |
1281 | dev_err(&client->dev, |
1282 | "duplicate addresses 0x%x, use force_subclient\n" , 0x48 + (val & 0x7)); |
1283 | return -ENODEV; |
1284 | } |
1285 | |
1286 | if (!(val & 0x08)) |
1287 | devm_i2c_new_dummy_device(dev: &client->dev, adap: adapter, address: 0x48 + (val & 0x7)); |
1288 | |
1289 | if (!(val & 0x80)) |
1290 | devm_i2c_new_dummy_device(dev: &client->dev, adap: adapter, address: 0x48 + ((val >> 4) & 0x7)); |
1291 | |
1292 | return 0; |
1293 | } |
1294 | |
1295 | |
1296 | /* Return 0 if detection is successful, -ENODEV otherwise */ |
1297 | static int w83791d_detect(struct i2c_client *client, |
1298 | struct i2c_board_info *info) |
1299 | { |
1300 | struct i2c_adapter *adapter = client->adapter; |
1301 | int val1, val2; |
1302 | unsigned short address = client->addr; |
1303 | |
1304 | if (!i2c_check_functionality(adap: adapter, I2C_FUNC_SMBUS_BYTE_DATA)) |
1305 | return -ENODEV; |
1306 | |
1307 | if (w83791d_read(client, W83791D_REG_CONFIG) & 0x80) |
1308 | return -ENODEV; |
1309 | |
1310 | val1 = w83791d_read(client, W83791D_REG_BANK); |
1311 | val2 = w83791d_read(client, W83791D_REG_CHIPMAN); |
1312 | /* Check for Winbond ID if in bank 0 */ |
1313 | if (!(val1 & 0x07)) { |
1314 | if ((!(val1 & 0x80) && val2 != 0xa3) || |
1315 | ((val1 & 0x80) && val2 != 0x5c)) { |
1316 | return -ENODEV; |
1317 | } |
1318 | } |
1319 | /* |
1320 | * If Winbond chip, address of chip and W83791D_REG_I2C_ADDR |
1321 | * should match |
1322 | */ |
1323 | if (w83791d_read(client, W83791D_REG_I2C_ADDR) != address) |
1324 | return -ENODEV; |
1325 | |
1326 | /* We want bank 0 and Vendor ID high byte */ |
1327 | val1 = w83791d_read(client, W83791D_REG_BANK) & 0x78; |
1328 | w83791d_write(client, W83791D_REG_BANK, value: val1 | 0x80); |
1329 | |
1330 | /* Verify it is a Winbond w83791d */ |
1331 | val1 = w83791d_read(client, W83791D_REG_WCHIPID); |
1332 | val2 = w83791d_read(client, W83791D_REG_CHIPMAN); |
1333 | if (val1 != 0x71 || val2 != 0x5c) |
1334 | return -ENODEV; |
1335 | |
1336 | strscpy(info->type, "w83791d" , I2C_NAME_SIZE); |
1337 | |
1338 | return 0; |
1339 | } |
1340 | |
1341 | static int w83791d_probe(struct i2c_client *client) |
1342 | { |
1343 | struct w83791d_data *data; |
1344 | struct device *dev = &client->dev; |
1345 | int i, err; |
1346 | u8 has_fanpwm45; |
1347 | |
1348 | #ifdef DEBUG |
1349 | int val1; |
1350 | val1 = w83791d_read(client, W83791D_REG_DID_VID4); |
1351 | dev_dbg(dev, "Device ID version: %d.%d (0x%02x)\n" , |
1352 | (val1 >> 5) & 0x07, (val1 >> 1) & 0x0f, val1); |
1353 | #endif |
1354 | |
1355 | data = devm_kzalloc(dev: &client->dev, size: sizeof(struct w83791d_data), |
1356 | GFP_KERNEL); |
1357 | if (!data) |
1358 | return -ENOMEM; |
1359 | |
1360 | i2c_set_clientdata(client, data); |
1361 | mutex_init(&data->update_lock); |
1362 | |
1363 | err = w83791d_detect_subclients(client); |
1364 | if (err) |
1365 | return err; |
1366 | |
1367 | /* Initialize the chip */ |
1368 | w83791d_init_client(client); |
1369 | |
1370 | /* |
1371 | * If the fan_div is changed, make sure there is a rational |
1372 | * fan_min in place |
1373 | */ |
1374 | for (i = 0; i < NUMBER_OF_FANIN; i++) |
1375 | data->fan_min[i] = w83791d_read(client, reg: W83791D_REG_FAN_MIN[i]); |
1376 | |
1377 | /* Register sysfs hooks */ |
1378 | err = sysfs_create_group(kobj: &client->dev.kobj, grp: &w83791d_group); |
1379 | if (err) |
1380 | return err; |
1381 | |
1382 | /* Check if pins of fan/pwm 4-5 are in use as GPIO */ |
1383 | has_fanpwm45 = w83791d_read(client, W83791D_REG_GPIO) & 0x10; |
1384 | if (has_fanpwm45) { |
1385 | err = sysfs_create_group(kobj: &client->dev.kobj, |
1386 | grp: &w83791d_group_fanpwm45); |
1387 | if (err) |
1388 | goto error4; |
1389 | } |
1390 | |
1391 | /* Everything is ready, now register the working device */ |
1392 | data->hwmon_dev = hwmon_device_register(dev); |
1393 | if (IS_ERR(ptr: data->hwmon_dev)) { |
1394 | err = PTR_ERR(ptr: data->hwmon_dev); |
1395 | goto error5; |
1396 | } |
1397 | |
1398 | return 0; |
1399 | |
1400 | error5: |
1401 | if (has_fanpwm45) |
1402 | sysfs_remove_group(kobj: &client->dev.kobj, grp: &w83791d_group_fanpwm45); |
1403 | error4: |
1404 | sysfs_remove_group(kobj: &client->dev.kobj, grp: &w83791d_group); |
1405 | return err; |
1406 | } |
1407 | |
1408 | static void w83791d_remove(struct i2c_client *client) |
1409 | { |
1410 | struct w83791d_data *data = i2c_get_clientdata(client); |
1411 | |
1412 | hwmon_device_unregister(dev: data->hwmon_dev); |
1413 | sysfs_remove_group(kobj: &client->dev.kobj, grp: &w83791d_group); |
1414 | } |
1415 | |
1416 | static void w83791d_init_client(struct i2c_client *client) |
1417 | { |
1418 | struct w83791d_data *data = i2c_get_clientdata(client); |
1419 | u8 tmp; |
1420 | u8 old_beep; |
1421 | |
1422 | /* |
1423 | * The difference between reset and init is that reset |
1424 | * does a hard reset of the chip via index 0x40, bit 7, |
1425 | * but init simply forces certain registers to have "sane" |
1426 | * values. The hope is that the BIOS has done the right |
1427 | * thing (which is why the default is reset=0, init=0), |
1428 | * but if not, reset is the hard hammer and init |
1429 | * is the soft mallet both of which are trying to whack |
1430 | * things into place... |
1431 | * NOTE: The data sheet makes a distinction between |
1432 | * "power on defaults" and "reset by MR". As far as I can tell, |
1433 | * the hard reset puts everything into a power-on state so I'm |
1434 | * not sure what "reset by MR" means or how it can happen. |
1435 | */ |
1436 | if (reset || init) { |
1437 | /* keep some BIOS settings when we... */ |
1438 | old_beep = w83791d_read(client, W83791D_REG_BEEP_CONFIG); |
1439 | |
1440 | if (reset) { |
1441 | /* ... reset the chip and ... */ |
1442 | w83791d_write(client, W83791D_REG_CONFIG, value: 0x80); |
1443 | } |
1444 | |
1445 | /* ... disable power-on abnormal beep */ |
1446 | w83791d_write(client, W83791D_REG_BEEP_CONFIG, value: old_beep | 0x80); |
1447 | |
1448 | /* disable the global beep (not done by hard reset) */ |
1449 | tmp = w83791d_read(client, reg: W83791D_REG_BEEP_CTRL[1]); |
1450 | w83791d_write(client, reg: W83791D_REG_BEEP_CTRL[1], value: tmp & 0xef); |
1451 | |
1452 | if (init) { |
1453 | /* Make sure monitoring is turned on for add-ons */ |
1454 | tmp = w83791d_read(client, W83791D_REG_TEMP2_CONFIG); |
1455 | if (tmp & 1) { |
1456 | w83791d_write(client, W83791D_REG_TEMP2_CONFIG, |
1457 | value: tmp & 0xfe); |
1458 | } |
1459 | |
1460 | tmp = w83791d_read(client, W83791D_REG_TEMP3_CONFIG); |
1461 | if (tmp & 1) { |
1462 | w83791d_write(client, W83791D_REG_TEMP3_CONFIG, |
1463 | value: tmp & 0xfe); |
1464 | } |
1465 | |
1466 | /* Start monitoring */ |
1467 | tmp = w83791d_read(client, W83791D_REG_CONFIG) & 0xf7; |
1468 | w83791d_write(client, W83791D_REG_CONFIG, value: tmp | 0x01); |
1469 | } |
1470 | } |
1471 | |
1472 | data->vrm = vid_which_vrm(); |
1473 | } |
1474 | |
1475 | static struct w83791d_data *w83791d_update_device(struct device *dev) |
1476 | { |
1477 | struct i2c_client *client = to_i2c_client(dev); |
1478 | struct w83791d_data *data = i2c_get_clientdata(client); |
1479 | int i, j; |
1480 | u8 reg_array_tmp[3]; |
1481 | u8 vbat_reg; |
1482 | |
1483 | mutex_lock(&data->update_lock); |
1484 | |
1485 | if (time_after(jiffies, data->last_updated + (HZ * 3)) |
1486 | || !data->valid) { |
1487 | dev_dbg(dev, "Starting w83791d device update\n" ); |
1488 | |
1489 | /* Update the voltages measured value and limits */ |
1490 | for (i = 0; i < NUMBER_OF_VIN; i++) { |
1491 | data->in[i] = w83791d_read(client, |
1492 | reg: W83791D_REG_IN[i]); |
1493 | data->in_max[i] = w83791d_read(client, |
1494 | reg: W83791D_REG_IN_MAX[i]); |
1495 | data->in_min[i] = w83791d_read(client, |
1496 | reg: W83791D_REG_IN_MIN[i]); |
1497 | } |
1498 | |
1499 | /* Update the fan counts and limits */ |
1500 | for (i = 0; i < NUMBER_OF_FANIN; i++) { |
1501 | /* Update the Fan measured value and limits */ |
1502 | data->fan[i] = w83791d_read(client, |
1503 | reg: W83791D_REG_FAN[i]); |
1504 | data->fan_min[i] = w83791d_read(client, |
1505 | reg: W83791D_REG_FAN_MIN[i]); |
1506 | } |
1507 | |
1508 | /* Update the fan divisor */ |
1509 | for (i = 0; i < 3; i++) { |
1510 | reg_array_tmp[i] = w83791d_read(client, |
1511 | reg: W83791D_REG_FAN_DIV[i]); |
1512 | } |
1513 | data->fan_div[0] = (reg_array_tmp[0] >> 4) & 0x03; |
1514 | data->fan_div[1] = (reg_array_tmp[0] >> 6) & 0x03; |
1515 | data->fan_div[2] = (reg_array_tmp[1] >> 6) & 0x03; |
1516 | data->fan_div[3] = reg_array_tmp[2] & 0x07; |
1517 | data->fan_div[4] = (reg_array_tmp[2] >> 4) & 0x07; |
1518 | |
1519 | /* |
1520 | * The fan divisor for fans 0-2 get bit 2 from |
1521 | * bits 5-7 respectively of vbat register |
1522 | */ |
1523 | vbat_reg = w83791d_read(client, W83791D_REG_VBAT); |
1524 | for (i = 0; i < 3; i++) |
1525 | data->fan_div[i] |= (vbat_reg >> (3 + i)) & 0x04; |
1526 | |
1527 | /* Update PWM duty cycle */ |
1528 | for (i = 0; i < NUMBER_OF_PWM; i++) { |
1529 | data->pwm[i] = w83791d_read(client, |
1530 | reg: W83791D_REG_PWM[i]); |
1531 | } |
1532 | |
1533 | /* Update PWM enable status */ |
1534 | for (i = 0; i < 2; i++) { |
1535 | reg_array_tmp[i] = w83791d_read(client, |
1536 | reg: W83791D_REG_FAN_CFG[i]); |
1537 | } |
1538 | data->pwm_enable[0] = (reg_array_tmp[0] >> 2) & 0x03; |
1539 | data->pwm_enable[1] = (reg_array_tmp[0] >> 4) & 0x03; |
1540 | data->pwm_enable[2] = (reg_array_tmp[1] >> 2) & 0x03; |
1541 | |
1542 | /* Update PWM target temperature */ |
1543 | for (i = 0; i < 3; i++) { |
1544 | data->temp_target[i] = w83791d_read(client, |
1545 | reg: W83791D_REG_TEMP_TARGET[i]) & 0x7f; |
1546 | } |
1547 | |
1548 | /* Update PWM temperature tolerance */ |
1549 | for (i = 0; i < 2; i++) { |
1550 | reg_array_tmp[i] = w83791d_read(client, |
1551 | reg: W83791D_REG_TEMP_TOL[i]); |
1552 | } |
1553 | data->temp_tolerance[0] = reg_array_tmp[0] & 0x0f; |
1554 | data->temp_tolerance[1] = (reg_array_tmp[0] >> 4) & 0x0f; |
1555 | data->temp_tolerance[2] = reg_array_tmp[1] & 0x0f; |
1556 | |
1557 | /* Update the first temperature sensor */ |
1558 | for (i = 0; i < 3; i++) { |
1559 | data->temp1[i] = w83791d_read(client, |
1560 | reg: W83791D_REG_TEMP1[i]); |
1561 | } |
1562 | |
1563 | /* Update the rest of the temperature sensors */ |
1564 | for (i = 0; i < 2; i++) { |
1565 | for (j = 0; j < 3; j++) { |
1566 | data->temp_add[i][j] = |
1567 | (w83791d_read(client, |
1568 | reg: W83791D_REG_TEMP_ADD[i][j * 2]) << 8) | |
1569 | w83791d_read(client, |
1570 | reg: W83791D_REG_TEMP_ADD[i][j * 2 + 1]); |
1571 | } |
1572 | } |
1573 | |
1574 | /* Update the realtime status */ |
1575 | data->alarms = |
1576 | w83791d_read(client, W83791D_REG_ALARM1) + |
1577 | (w83791d_read(client, W83791D_REG_ALARM2) << 8) + |
1578 | (w83791d_read(client, W83791D_REG_ALARM3) << 16); |
1579 | |
1580 | /* Update the beep configuration information */ |
1581 | data->beep_mask = |
1582 | w83791d_read(client, reg: W83791D_REG_BEEP_CTRL[0]) + |
1583 | (w83791d_read(client, reg: W83791D_REG_BEEP_CTRL[1]) << 8) + |
1584 | (w83791d_read(client, reg: W83791D_REG_BEEP_CTRL[2]) << 16); |
1585 | |
1586 | /* Extract global beep enable flag */ |
1587 | data->beep_enable = |
1588 | (data->beep_mask >> GLOBAL_BEEP_ENABLE_SHIFT) & 0x01; |
1589 | |
1590 | /* Update the cpu voltage information */ |
1591 | i = w83791d_read(client, W83791D_REG_VID_FANDIV); |
1592 | data->vid = i & 0x0f; |
1593 | data->vid |= (w83791d_read(client, W83791D_REG_DID_VID4) & 0x01) |
1594 | << 4; |
1595 | |
1596 | data->last_updated = jiffies; |
1597 | data->valid = true; |
1598 | } |
1599 | |
1600 | mutex_unlock(lock: &data->update_lock); |
1601 | |
1602 | #ifdef DEBUG |
1603 | w83791d_print_debug(data, dev); |
1604 | #endif |
1605 | |
1606 | return data; |
1607 | } |
1608 | |
1609 | #ifdef DEBUG |
1610 | static void w83791d_print_debug(struct w83791d_data *data, struct device *dev) |
1611 | { |
1612 | int i = 0, j = 0; |
1613 | |
1614 | dev_dbg(dev, "======Start of w83791d debug values======\n" ); |
1615 | dev_dbg(dev, "%d set of Voltages: ===>\n" , NUMBER_OF_VIN); |
1616 | for (i = 0; i < NUMBER_OF_VIN; i++) { |
1617 | dev_dbg(dev, "vin[%d] is: 0x%02x\n" , i, data->in[i]); |
1618 | dev_dbg(dev, "vin[%d] min is: 0x%02x\n" , i, data->in_min[i]); |
1619 | dev_dbg(dev, "vin[%d] max is: 0x%02x\n" , i, data->in_max[i]); |
1620 | } |
1621 | dev_dbg(dev, "%d set of Fan Counts/Divisors: ===>\n" , NUMBER_OF_FANIN); |
1622 | for (i = 0; i < NUMBER_OF_FANIN; i++) { |
1623 | dev_dbg(dev, "fan[%d] is: 0x%02x\n" , i, data->fan[i]); |
1624 | dev_dbg(dev, "fan[%d] min is: 0x%02x\n" , i, data->fan_min[i]); |
1625 | dev_dbg(dev, "fan_div[%d] is: 0x%02x\n" , i, data->fan_div[i]); |
1626 | } |
1627 | |
1628 | /* |
1629 | * temperature math is signed, but only print out the |
1630 | * bits that matter |
1631 | */ |
1632 | dev_dbg(dev, "%d set of Temperatures: ===>\n" , NUMBER_OF_TEMPIN); |
1633 | for (i = 0; i < 3; i++) |
1634 | dev_dbg(dev, "temp1[%d] is: 0x%02x\n" , i, (u8) data->temp1[i]); |
1635 | for (i = 0; i < 2; i++) { |
1636 | for (j = 0; j < 3; j++) { |
1637 | dev_dbg(dev, "temp_add[%d][%d] is: 0x%04x\n" , i, j, |
1638 | (u16) data->temp_add[i][j]); |
1639 | } |
1640 | } |
1641 | |
1642 | dev_dbg(dev, "Misc Information: ===>\n" ); |
1643 | dev_dbg(dev, "alarm is: 0x%08x\n" , data->alarms); |
1644 | dev_dbg(dev, "beep_mask is: 0x%08x\n" , data->beep_mask); |
1645 | dev_dbg(dev, "beep_enable is: %d\n" , data->beep_enable); |
1646 | dev_dbg(dev, "vid is: 0x%02x\n" , data->vid); |
1647 | dev_dbg(dev, "vrm is: 0x%02x\n" , data->vrm); |
1648 | dev_dbg(dev, "=======End of w83791d debug values========\n" ); |
1649 | dev_dbg(dev, "\n" ); |
1650 | } |
1651 | #endif |
1652 | |
1653 | module_i2c_driver(w83791d_driver); |
1654 | |
1655 | MODULE_AUTHOR("Charles Spirakis <bezaur@gmail.com>" ); |
1656 | MODULE_DESCRIPTION("W83791D driver" ); |
1657 | MODULE_LICENSE("GPL" ); |
1658 | |