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hwmon: (w83791d) Convert to a new-style i2c driver
[linux-block.git] / drivers / hwmon / w83792d.c
CommitLineData
5563e27d
M		 1/*
2 w83792d.c - Part of lm_sensors, Linux kernel modules for hardware
3 monitoring
4 Copyright (C) 2004, 2005 Winbond Electronics Corp.
5 Chunhao Huang <DZShen@Winbond.com.tw>,
7188cc66 6 Rudolf Marek <r.marek@assembler.cz>
5563e27d
M		 7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21
22 Note:
23 1. This driver is only for 2.6 kernel, 2.4 kernel need a different driver.
24 2. This driver is only for Winbond W83792D C version device, there
25 are also some motherboards with B version W83792D device. The
26 calculation method to in6-in7(measured value, limits) is a little
27 different between C and B version. C or B version can be identified
28 by CR[0x49h].
29*/
30
31/*
32 Supports following chips:
33
34 Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA
35 w83792d 9 7 7 3 0x7a 0x5ca3 yes no
36*/
37
5563e27d
M		 38#include <linux/module.h>
39#include <linux/init.h>
40#include <linux/slab.h>
41#include <linux/i2c.h>
ce785ab4 42#include <linux/hwmon.h>
5563e27d 43#include <linux/hwmon-sysfs.h>
ce785ab4 44#include <linux/err.h>
9a61bf63 45#include <linux/mutex.h>
f52f79da 46#include <linux/sysfs.h>
5563e27d
M		 47
48/* Addresses to scan */
25e9c86d
MH		 49static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f,
50 I2C_CLIENT_END };
5563e27d
M		 51
52/* Insmod parameters */
f4b50261 53I2C_CLIENT_INSMOD_1(w83792d);
5563e27d
M		 54I2C_CLIENT_MODULE_PARM(force_subclients, "List of subclient addresses: "
55 "{bus, clientaddr, subclientaddr1, subclientaddr2}");
56
57static int init;
58module_param(init, bool, 0);
59MODULE_PARM_DESC(init, "Set to one to force chip initialization");
60
61/* The W83792D registers */
62static const u8 W83792D_REG_IN[9] = {
63 0x20, /* Vcore A in DataSheet */
64 0x21, /* Vcore B in DataSheet */
65 0x22, /* VIN0 in DataSheet */
66 0x23, /* VIN1 in DataSheet */
67 0x24, /* VIN2 in DataSheet */
68 0x25, /* VIN3 in DataSheet */
69 0x26, /* 5VCC in DataSheet */
70 0xB0, /* 5VSB in DataSheet */
71 0xB1 /* VBAT in DataSheet */
72};
73#define W83792D_REG_LOW_BITS1 0x3E /* Low Bits I in DataSheet */
74#define W83792D_REG_LOW_BITS2 0x3F /* Low Bits II in DataSheet */
75static const u8 W83792D_REG_IN_MAX[9] = {
76 0x2B, /* Vcore A High Limit in DataSheet */
77 0x2D, /* Vcore B High Limit in DataSheet */
78 0x2F, /* VIN0 High Limit in DataSheet */
79 0x31, /* VIN1 High Limit in DataSheet */
80 0x33, /* VIN2 High Limit in DataSheet */
81 0x35, /* VIN3 High Limit in DataSheet */
82 0x37, /* 5VCC High Limit in DataSheet */
83 0xB4, /* 5VSB High Limit in DataSheet */
84 0xB6 /* VBAT High Limit in DataSheet */
85};
86static const u8 W83792D_REG_IN_MIN[9] = {
87 0x2C, /* Vcore A Low Limit in DataSheet */
88 0x2E, /* Vcore B Low Limit in DataSheet */
89 0x30, /* VIN0 Low Limit in DataSheet */
90 0x32, /* VIN1 Low Limit in DataSheet */
91 0x34, /* VIN2 Low Limit in DataSheet */
92 0x36, /* VIN3 Low Limit in DataSheet */
93 0x38, /* 5VCC Low Limit in DataSheet */
94 0xB5, /* 5VSB Low Limit in DataSheet */
95 0xB7 /* VBAT Low Limit in DataSheet */
96};
97static const u8 W83792D_REG_FAN[7] = {
98 0x28, /* FAN 1 Count in DataSheet */
99 0x29, /* FAN 2 Count in DataSheet */
100 0x2A, /* FAN 3 Count in DataSheet */
101 0xB8, /* FAN 4 Count in DataSheet */
102 0xB9, /* FAN 5 Count in DataSheet */
103 0xBA, /* FAN 6 Count in DataSheet */
104 0xBE /* FAN 7 Count in DataSheet */
105};
106static const u8 W83792D_REG_FAN_MIN[7] = {
107 0x3B, /* FAN 1 Count Low Limit in DataSheet */
108 0x3C, /* FAN 2 Count Low Limit in DataSheet */
109 0x3D, /* FAN 3 Count Low Limit in DataSheet */
110 0xBB, /* FAN 4 Count Low Limit in DataSheet */
111 0xBC, /* FAN 5 Count Low Limit in DataSheet */
112 0xBD, /* FAN 6 Count Low Limit in DataSheet */
113 0xBF /* FAN 7 Count Low Limit in DataSheet */
114};
115#define W83792D_REG_FAN_CFG 0x84 /* FAN Configuration in DataSheet */
116static const u8 W83792D_REG_FAN_DIV[4] = {
117 0x47, /* contains FAN2 and FAN1 Divisor */
118 0x5B, /* contains FAN4 and FAN3 Divisor */
119 0x5C, /* contains FAN6 and FAN5 Divisor */
120 0x9E /* contains FAN7 Divisor. */
121};
122static const u8 W83792D_REG_PWM[7] = {
123 0x81, /* FAN 1 Duty Cycle, be used to control */
124 0x83, /* FAN 2 Duty Cycle, be used to control */
125 0x94, /* FAN 3 Duty Cycle, be used to control */
126 0xA3, /* FAN 4 Duty Cycle, be used to control */
127 0xA4, /* FAN 5 Duty Cycle, be used to control */
128 0xA5, /* FAN 6 Duty Cycle, be used to control */
129 0xA6 /* FAN 7 Duty Cycle, be used to control */
130};
131#define W83792D_REG_BANK 0x4E
132#define W83792D_REG_TEMP2_CONFIG 0xC2
133#define W83792D_REG_TEMP3_CONFIG 0xCA
134
135static const u8 W83792D_REG_TEMP1[3] = {
136 0x27, /* TEMP 1 in DataSheet */
137 0x39, /* TEMP 1 Over in DataSheet */
138 0x3A, /* TEMP 1 Hyst in DataSheet */
139};
140
141static const u8 W83792D_REG_TEMP_ADD[2][6] = {
142 { 0xC0, /* TEMP 2 in DataSheet */
143 0xC1, /* TEMP 2(0.5 deg) in DataSheet */
144 0xC5, /* TEMP 2 Over High part in DataSheet */
145 0xC6, /* TEMP 2 Over Low part in DataSheet */
146 0xC3, /* TEMP 2 Thyst High part in DataSheet */
147 0xC4 }, /* TEMP 2 Thyst Low part in DataSheet */
148 { 0xC8, /* TEMP 3 in DataSheet */
149 0xC9, /* TEMP 3(0.5 deg) in DataSheet */
150 0xCD, /* TEMP 3 Over High part in DataSheet */
151 0xCE, /* TEMP 3 Over Low part in DataSheet */
152 0xCB, /* TEMP 3 Thyst High part in DataSheet */
153 0xCC } /* TEMP 3 Thyst Low part in DataSheet */
154};
155
156static const u8 W83792D_REG_THERMAL[3] = {
157 0x85, /* SmartFanI: Fan1 target value */
158 0x86, /* SmartFanI: Fan2 target value */
159 0x96 /* SmartFanI: Fan3 target value */
160};
161
162static const u8 W83792D_REG_TOLERANCE[3] = {
163 0x87, /* (bit3-0)SmartFan Fan1 tolerance */
164 0x87, /* (bit7-4)SmartFan Fan2 tolerance */
165 0x97 /* (bit3-0)SmartFan Fan3 tolerance */
166};
167
168static const u8 W83792D_REG_POINTS[3][4] = {
169 { 0x85, /* SmartFanII: Fan1 temp point 1 */
170 0xE3, /* SmartFanII: Fan1 temp point 2 */
171 0xE4, /* SmartFanII: Fan1 temp point 3 */
172 0xE5 }, /* SmartFanII: Fan1 temp point 4 */
173 { 0x86, /* SmartFanII: Fan2 temp point 1 */
174 0xE6, /* SmartFanII: Fan2 temp point 2 */
175 0xE7, /* SmartFanII: Fan2 temp point 3 */
176 0xE8 }, /* SmartFanII: Fan2 temp point 4 */
177 { 0x96, /* SmartFanII: Fan3 temp point 1 */
178 0xE9, /* SmartFanII: Fan3 temp point 2 */
179 0xEA, /* SmartFanII: Fan3 temp point 3 */
180 0xEB } /* SmartFanII: Fan3 temp point 4 */
181};
182
183static const u8 W83792D_REG_LEVELS[3][4] = {
184 { 0x88, /* (bit3-0) SmartFanII: Fan1 Non-Stop */
185 0x88, /* (bit7-4) SmartFanII: Fan1 Level 1 */
186 0xE0, /* (bit7-4) SmartFanII: Fan1 Level 2 */
187 0xE0 }, /* (bit3-0) SmartFanII: Fan1 Level 3 */
188 { 0x89, /* (bit3-0) SmartFanII: Fan2 Non-Stop */
189 0x89, /* (bit7-4) SmartFanII: Fan2 Level 1 */
190 0xE1, /* (bit7-4) SmartFanII: Fan2 Level 2 */
191 0xE1 }, /* (bit3-0) SmartFanII: Fan2 Level 3 */
192 { 0x98, /* (bit3-0) SmartFanII: Fan3 Non-Stop */
193 0x98, /* (bit7-4) SmartFanII: Fan3 Level 1 */
194 0xE2, /* (bit7-4) SmartFanII: Fan3 Level 2 */
195 0xE2 } /* (bit3-0) SmartFanII: Fan3 Level 3 */
196};
197
96320519 198#define W83792D_REG_GPIO_EN 0x1A
5563e27d
M		 199#define W83792D_REG_CONFIG 0x40
200#define W83792D_REG_VID_FANDIV 0x47
201#define W83792D_REG_CHIPID 0x49
202#define W83792D_REG_WCHIPID 0x58
203#define W83792D_REG_CHIPMAN 0x4F
204#define W83792D_REG_PIN 0x4B
205#define W83792D_REG_I2C_SUBADDR 0x4A
206
207#define W83792D_REG_ALARM1 0xA9 /* realtime status register1 */
208#define W83792D_REG_ALARM2 0xAA /* realtime status register2 */
209#define W83792D_REG_ALARM3 0xAB /* realtime status register3 */
210#define W83792D_REG_CHASSIS 0x42 /* Bit 5: Case Open status bit */
211#define W83792D_REG_CHASSIS_CLR 0x44 /* Bit 7: Case Open CLR_CHS/Reset bit */
212
213/* control in0/in1 's limit modifiability */
214#define W83792D_REG_VID_IN_B 0x17
215
216#define W83792D_REG_VBAT 0x5D
217#define W83792D_REG_I2C_ADDR 0x48
218
219/* Conversions. Rounding and limit checking is only done on the TO_REG
220 variants. Note that you should be a bit careful with which arguments
221 these macros are called: arguments may be evaluated more than once.
222 Fixing this is just not worth it. */
223#define IN_FROM_REG(nr,val) (((nr)<=1)?(val*2): \
224 ((((nr)==6)||((nr)==7))?(val*6):(val*4)))
225#define IN_TO_REG(nr,val) (((nr)<=1)?(val/2): \
226 ((((nr)==6)||((nr)==7))?(val/6):(val/4)))
227
228static inline u8
229FAN_TO_REG(long rpm, int div)
230{
231 if (rpm == 0)
232 return 255;
233 rpm = SENSORS_LIMIT(rpm, 1, 1000000);
234 return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
235}
236
237#define FAN_FROM_REG(val,div) ((val) == 0 ? -1 : \
238 ((val) == 255 ? 0 : \
239 1350000 / ((val) * (div))))
240
241/* for temp1 */
242#define TEMP1_TO_REG(val) (SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \
243 : (val)) / 1000, 0, 0xff))
244#define TEMP1_FROM_REG(val) (((val) & 0x80 ? (val)-0x100 : (val)) * 1000)
245/* for temp2 and temp3, because they need addtional resolution */
246#define TEMP_ADD_FROM_REG(val1, val2) \
247 ((((val1) & 0x80 ? (val1)-0x100 \
248 : (val1)) * 1000) + ((val2 & 0x80) ? 500 : 0))
249#define TEMP_ADD_TO_REG_HIGH(val) \
250 (SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \
251 : (val)) / 1000, 0, 0xff))
252#define TEMP_ADD_TO_REG_LOW(val) ((val%1000) ? 0x80 : 0x00)
253
5563e27d
M		 254#define DIV_FROM_REG(val) (1 << (val))
255
256static inline u8
257DIV_TO_REG(long val)
258{
259 int i;
260 val = SENSORS_LIMIT(val, 1, 128) >> 1;
96320519 261 for (i = 0; i < 7; i++) {
5563e27d
M		 262 if (val == 0)
263 break;
264 val >>= 1;
265 }
266 return ((u8) i);
267}
268
269struct w83792d_data {
270 struct i2c_client client;
1beeffe4 271 struct device *hwmon_dev;
5563e27d
M		 272 enum chips type;
273
9a61bf63 274 struct mutex update_lock;
5563e27d
M		 275 char valid; /* !=0 if following fields are valid */
276 unsigned long last_updated; /* In jiffies */
277
278 /* array of 2 pointers to subclients */
279 struct i2c_client *lm75[2];
280
281 u8 in[9]; /* Register value */
282 u8 in_max[9]; /* Register value */
283 u8 in_min[9]; /* Register value */
99d85560 284 u16 low_bits; /* Additional resolution to voltage in6-0 */
5563e27d
M		 285 u8 fan[7]; /* Register value */
286 u8 fan_min[7]; /* Register value */
287 u8 temp1[3]; /* current, over, thyst */
288 u8 temp_add[2][6]; /* Register value */
289 u8 fan_div[7]; /* Register encoding, shifted right */
290 u8 pwm[7]; /* We only consider the first 3 set of pwm,
291 although 792 chip has 7 set of pwm. */
292 u8 pwmenable[3];
5563e27d
M		 293 u32 alarms; /* realtime status register encoding,combined */
294 u8 chassis; /* Chassis status */
295 u8 chassis_clear; /* CLR_CHS, clear chassis intrusion detection */
296 u8 thermal_cruise[3]; /* Smart FanI: Fan1,2,3 target value */
297 u8 tolerance[3]; /* Fan1,2,3 tolerance(Smart Fan I/II) */
298 u8 sf2_points[3][4]; /* Smart FanII: Fan1,2,3 temperature points */
299 u8 sf2_levels[3][4]; /* Smart FanII: Fan1,2,3 duty cycle levels */
300};
301
302static int w83792d_attach_adapter(struct i2c_adapter *adapter);
303static int w83792d_detect(struct i2c_adapter *adapter, int address, int kind);
304static int w83792d_detach_client(struct i2c_client *client);
5563e27d
M		 305static struct w83792d_data *w83792d_update_device(struct device *dev);
306
307#ifdef DEBUG
308static void w83792d_print_debug(struct w83792d_data *data, struct device *dev);
309#endif
310
311static void w83792d_init_client(struct i2c_client *client);
312
313static struct i2c_driver w83792d_driver = {
cdaf7934 314 .driver = {
cdaf7934
LR		 315 .name = "w83792d",
316 },
5563e27d
M		 317 .attach_adapter = w83792d_attach_adapter,
318 .detach_client = w83792d_detach_client,
319};
320
99d85560 321static inline long in_count_from_reg(int nr, struct w83792d_data *data)
5563e27d 322{
99d85560
JD		 323 /* in7 and in8 do not have low bits, but the formula still works */
324 return ((data->in[nr] << 2) | ((data->low_bits >> (2 * nr)) & 0x03));
5563e27d
M		 325}
326
0d0ab7fe
JD		 327/* The SMBus locks itself. The Winbond W83792D chip has a bank register,
328 but the driver only accesses registers in bank 0, so we don't have
329 to switch banks and lock access between switches. */
330static inline int w83792d_read_value(struct i2c_client *client, u8 reg)
331{
332 return i2c_smbus_read_byte_data(client, reg);
333}
334
335static inline int
336w83792d_write_value(struct i2c_client *client, u8 reg, u8 value)
337{
338 return i2c_smbus_write_byte_data(client, reg, value);
339}
340
5563e27d
M		 341/* following are the sysfs callback functions */
342static ssize_t show_in(struct device *dev, struct device_attribute *attr,
343 char *buf)
344{
345 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
346 int nr = sensor_attr->index;
347 struct w83792d_data *data = w83792d_update_device(dev);
348 return sprintf(buf,"%ld\n", IN_FROM_REG(nr,(in_count_from_reg(nr, data))));
349}
350
351#define show_in_reg(reg) \
352static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
353 char *buf) \
354{ \
355 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
356 int nr = sensor_attr->index; \
357 struct w83792d_data *data = w83792d_update_device(dev); \
358 return sprintf(buf,"%ld\n", (long)(IN_FROM_REG(nr, (data->reg[nr])*4))); \
359}
360
361show_in_reg(in_min);
362show_in_reg(in_max);
363
364#define store_in_reg(REG, reg) \
365static 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 = to_sensor_dev_attr(attr); \
370 int nr = sensor_attr->index; \
371 struct i2c_client *client = to_i2c_client(dev); \
372 struct w83792d_data *data = i2c_get_clientdata(client); \
373 u32 val; \
374 \
375 val = simple_strtoul(buf, NULL, 10); \
bed73082 376 mutex_lock(&data->update_lock); \
5563e27d
M		 377 data->in_##reg[nr] = SENSORS_LIMIT(IN_TO_REG(nr, val)/4, 0, 255); \
378 w83792d_write_value(client, W83792D_REG_IN_##REG[nr], data->in_##reg[nr]); \
bed73082 379 mutex_unlock(&data->update_lock); \
5563e27d
M		 380 \
381 return count; \
382}
383store_in_reg(MIN, min);
384store_in_reg(MAX, max);
385
5563e27d
M		 386#define show_fan_reg(reg) \
387static ssize_t show_##reg (struct device *dev, struct device_attribute *attr, \
388 char *buf) \
389{ \
390 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
391 int nr = sensor_attr->index - 1; \
392 struct w83792d_data *data = w83792d_update_device(dev); \
393 return sprintf(buf,"%d\n", \
394 FAN_FROM_REG(data->reg[nr], DIV_FROM_REG(data->fan_div[nr]))); \
395}
396
397show_fan_reg(fan);
398show_fan_reg(fan_min);
399
400static ssize_t
401store_fan_min(struct device *dev, struct device_attribute *attr,
402 const char *buf, size_t count)
403{
404 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
405 int nr = sensor_attr->index - 1;
406 struct i2c_client *client = to_i2c_client(dev);
407 struct w83792d_data *data = i2c_get_clientdata(client);
408 u32 val;
409
410 val = simple_strtoul(buf, NULL, 10);
bed73082 411 mutex_lock(&data->update_lock);
5563e27d
M		 412 data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
413 w83792d_write_value(client, W83792D_REG_FAN_MIN[nr],
414 data->fan_min[nr]);
bed73082 415 mutex_unlock(&data->update_lock);
5563e27d
M		 416
417 return count;
418}
419
420static ssize_t
421show_fan_div(struct device *dev, struct device_attribute *attr,
422 char *buf)
423{
424 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
425 int nr = sensor_attr->index;
426 struct w83792d_data *data = w83792d_update_device(dev);
427 return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr - 1]));
428}
429
430/* Note: we save and restore the fan minimum here, because its value is
431 determined in part by the fan divisor. This follows the principle of
d6e05edc 432 least surprise; the user doesn't expect the fan minimum to change just
5563e27d
M		 433 because the divisor changed. */
434static ssize_t
435store_fan_div(struct device *dev, struct device_attribute *attr,
436 const char *buf, size_t count)
437{
438 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
439 int nr = sensor_attr->index - 1;
440 struct i2c_client *client = to_i2c_client(dev);
441 struct w83792d_data *data = i2c_get_clientdata(client);
442 unsigned long min;
443 /*u8 reg;*/
444 u8 fan_div_reg = 0;
445 u8 tmp_fan_div;
446
447 /* Save fan_min */
bed73082 448 mutex_lock(&data->update_lock);
5563e27d
M		 449 min = FAN_FROM_REG(data->fan_min[nr],
450 DIV_FROM_REG(data->fan_div[nr]));
451
452 data->fan_div[nr] = DIV_TO_REG(simple_strtoul(buf, NULL, 10));
453
454 fan_div_reg = w83792d_read_value(client, W83792D_REG_FAN_DIV[nr >> 1]);
455 fan_div_reg &= (nr & 0x01) ? 0x8f : 0xf8;
456 tmp_fan_div = (nr & 0x01) ? (((data->fan_div[nr]) << 4) & 0x70)
457 : ((data->fan_div[nr]) & 0x07);
458 w83792d_write_value(client, W83792D_REG_FAN_DIV[nr >> 1],
459 fan_div_reg | tmp_fan_div);
460
461 /* Restore fan_min */
462 data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
463 w83792d_write_value(client, W83792D_REG_FAN_MIN[nr], data->fan_min[nr]);
bed73082 464 mutex_unlock(&data->update_lock);
5563e27d
M		 465
466 return count;
467}
468
5563e27d
M		 469/* read/write the temperature1, includes measured value and limits */
470
471static ssize_t show_temp1(struct device *dev, struct device_attribute *attr,
472 char *buf)
473{
474 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
475 int nr = sensor_attr->index;
476 struct w83792d_data *data = w83792d_update_device(dev);
477 return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp1[nr]));
478}
479
480static ssize_t store_temp1(struct device *dev, struct device_attribute *attr,
481 const char *buf, size_t count)
482{
483 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
484 int nr = sensor_attr->index;
485 struct i2c_client *client = to_i2c_client(dev);
486 struct w83792d_data *data = i2c_get_clientdata(client);
487 s32 val;
488
489 val = simple_strtol(buf, NULL, 10);
bed73082 490 mutex_lock(&data->update_lock);
5563e27d
M		 491 data->temp1[nr] = TEMP1_TO_REG(val);
492 w83792d_write_value(client, W83792D_REG_TEMP1[nr],
493 data->temp1[nr]);
bed73082 494 mutex_unlock(&data->update_lock);
5563e27d
M		 495
496 return count;
497}
498
5563e27d
M		 499/* read/write the temperature2-3, includes measured value and limits */
500
501static ssize_t show_temp23(struct device *dev, struct device_attribute *attr,
502 char *buf)
503{
504 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
505 int nr = sensor_attr->nr;
506 int index = sensor_attr->index;
507 struct w83792d_data *data = w83792d_update_device(dev);
508 return sprintf(buf,"%ld\n",
509 (long)TEMP_ADD_FROM_REG(data->temp_add[nr][index],
510 data->temp_add[nr][index+1]));
511}
512
513static ssize_t store_temp23(struct device *dev, struct device_attribute *attr,
514 const char *buf, size_t count)
515{
516 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
517 int nr = sensor_attr->nr;
518 int index = sensor_attr->index;
519 struct i2c_client *client = to_i2c_client(dev);
520 struct w83792d_data *data = i2c_get_clientdata(client);
521 s32 val;
522
523 val = simple_strtol(buf, NULL, 10);
bed73082 524 mutex_lock(&data->update_lock);
5563e27d
M		 525 data->temp_add[nr][index] = TEMP_ADD_TO_REG_HIGH(val);
526 data->temp_add[nr][index+1] = TEMP_ADD_TO_REG_LOW(val);
527 w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index],
528 data->temp_add[nr][index]);
529 w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index+1],
530 data->temp_add[nr][index+1]);
bed73082 531 mutex_unlock(&data->update_lock);
5563e27d
M		 532
533 return count;
534}
535
5563e27d
M		 536/* get reatime status of all sensors items: voltage, temp, fan */
537static ssize_t
538show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
539{
540 struct w83792d_data *data = w83792d_update_device(dev);
541 return sprintf(buf, "%d\n", data->alarms);
542}
543
43e61a2d
GJ		 544static ssize_t show_alarm(struct device *dev,
545 struct device_attribute *attr, char *buf)
546{
547 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
548 int nr = sensor_attr->index;
549 struct w83792d_data *data = w83792d_update_device(dev);
550 return sprintf(buf, "%d\n", (data->alarms >> nr) & 1);
551}
552
5563e27d
M		 553static ssize_t
554show_pwm(struct device *dev, struct device_attribute *attr,
555 char *buf)
556{
557 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
558 int nr = sensor_attr->index;
559 struct w83792d_data *data = w83792d_update_device(dev);
53e2761b 560 return sprintf(buf, "%d\n", (data->pwm[nr] & 0x0f) << 4);
5563e27d
M		 561}
562
563static ssize_t
564show_pwmenable(struct device *dev, struct device_attribute *attr,
565 char *buf)
566{
567 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
568 int nr = sensor_attr->index - 1;
569 struct w83792d_data *data = w83792d_update_device(dev);
570 long pwm_enable_tmp = 1;
571
572 switch (data->pwmenable[nr]) {
573 case 0:
574 pwm_enable_tmp = 1; /* manual mode */
575 break;
576 case 1:
577 pwm_enable_tmp = 3; /*thermal cruise/Smart Fan I */
578 break;
579 case 2:
580 pwm_enable_tmp = 2; /* Smart Fan II */
581 break;
582 }
583
584 return sprintf(buf, "%ld\n", pwm_enable_tmp);
585}
586
587static ssize_t
588store_pwm(struct device *dev, struct device_attribute *attr,
589 const char *buf, size_t count)
590{
591 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
53e2761b 592 int nr = sensor_attr->index;
5563e27d
M		 593 struct i2c_client *client = to_i2c_client(dev);
594 struct w83792d_data *data = i2c_get_clientdata(client);
53e2761b 595 u8 val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 0, 255) >> 4;
5563e27d 596
53e2761b
YM		 597 mutex_lock(&data->update_lock);
598 val |= w83792d_read_value(client, W83792D_REG_PWM[nr]) & 0xf0;
599 data->pwm[nr] = val;
5563e27d 600 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]);
53e2761b 601 mutex_unlock(&data->update_lock);
5563e27d
M		 602
603 return count;
604}
605
606static ssize_t
607store_pwmenable(struct device *dev, struct device_attribute *attr,
608 const char *buf, size_t count)
609{
610 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
611 int nr = sensor_attr->index - 1;
612 struct i2c_client *client = to_i2c_client(dev);
613 struct w83792d_data *data = i2c_get_clientdata(client);
614 u32 val;
615 u8 fan_cfg_tmp, cfg1_tmp, cfg2_tmp, cfg3_tmp, cfg4_tmp;
616
617 val = simple_strtoul(buf, NULL, 10);
bed73082
YM		 618 if (val < 1 || val > 3)
619 return -EINVAL;
620
621 mutex_lock(&data->update_lock);
5563e27d
M		 622 switch (val) {
623 case 1:
624 data->pwmenable[nr] = 0; /* manual mode */
625 break;
626 case 2:
627 data->pwmenable[nr] = 2; /* Smart Fan II */
628 break;
629 case 3:
630 data->pwmenable[nr] = 1; /* thermal cruise/Smart Fan I */
631 break;
5563e27d
M		 632 }
633 cfg1_tmp = data->pwmenable[0];
634 cfg2_tmp = (data->pwmenable[1]) << 2;
635 cfg3_tmp = (data->pwmenable[2]) << 4;
636 cfg4_tmp = w83792d_read_value(client,W83792D_REG_FAN_CFG) & 0xc0;
637 fan_cfg_tmp = ((cfg4_tmp | cfg3_tmp) | cfg2_tmp) | cfg1_tmp;
638 w83792d_write_value(client, W83792D_REG_FAN_CFG, fan_cfg_tmp);
bed73082 639 mutex_unlock(&data->update_lock);
5563e27d
M		 640
641 return count;
642}
643
5563e27d
M		 644static ssize_t
645show_pwm_mode(struct device *dev, struct device_attribute *attr,
646 char *buf)
647{
648 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
649 int nr = sensor_attr->index;
650 struct w83792d_data *data = w83792d_update_device(dev);
53e2761b 651 return sprintf(buf, "%d\n", data->pwm[nr] >> 7);
5563e27d
M		 652}
653
654static ssize_t
655store_pwm_mode(struct device *dev, struct device_attribute *attr,
656 const char *buf, size_t count)
657{
658 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
53e2761b 659 int nr = sensor_attr->index;
5563e27d
M		 660 struct i2c_client *client = to_i2c_client(dev);
661 struct w83792d_data *data = i2c_get_clientdata(client);
662 u32 val;
5563e27d
M		 663
664 val = simple_strtoul(buf, NULL, 10);
53e2761b
YM		 665 if (val != 0 && val != 1)
666 return -EINVAL;
667
668 mutex_lock(&data->update_lock);
669 data->pwm[nr] = w83792d_read_value(client, W83792D_REG_PWM[nr]);
670 if (val) { /* PWM mode */
671 data->pwm[nr] |= 0x80;
672 } else { /* DC mode */
673 data->pwm[nr] &= 0x7f;
674 }
675 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]);
676 mutex_unlock(&data->update_lock);
5563e27d
M		 677
678 return count;
679}
680
5563e27d
M		 681static ssize_t
682show_regs_chassis(struct device *dev, struct device_attribute *attr,
683 char *buf)
684{
685 struct w83792d_data *data = w83792d_update_device(dev);
686 return sprintf(buf, "%d\n", data->chassis);
687}
688
5563e27d
M		 689static ssize_t
690show_chassis_clear(struct device *dev, struct device_attribute *attr, char *buf)
691{
692 struct w83792d_data *data = w83792d_update_device(dev);
693 return sprintf(buf, "%d\n", data->chassis_clear);
694}
695
696static ssize_t
697store_chassis_clear(struct device *dev, struct device_attribute *attr,
698 const char *buf, size_t count)
699{
700 struct i2c_client *client = to_i2c_client(dev);
701 struct w83792d_data *data = i2c_get_clientdata(client);
702 u32 val;
703 u8 temp1 = 0, temp2 = 0;
704
705 val = simple_strtoul(buf, NULL, 10);
bed73082 706 mutex_lock(&data->update_lock);
5563e27d
M		 707 data->chassis_clear = SENSORS_LIMIT(val, 0 ,1);
708 temp1 = ((data->chassis_clear) << 7) & 0x80;
709 temp2 = w83792d_read_value(client,
710 W83792D_REG_CHASSIS_CLR) & 0x7f;
711 w83792d_write_value(client, W83792D_REG_CHASSIS_CLR, temp1 | temp2);
bed73082 712 mutex_unlock(&data->update_lock);
5563e27d
M		 713
714 return count;
715}
716
5563e27d
M		 717/* For Smart Fan I / Thermal Cruise */
718static ssize_t
719show_thermal_cruise(struct device *dev, struct device_attribute *attr,
720 char *buf)
721{
722 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
723 int nr = sensor_attr->index;
724 struct w83792d_data *data = w83792d_update_device(dev);
725 return sprintf(buf, "%ld\n", (long)data->thermal_cruise[nr-1]);
726}
727
728static ssize_t
729store_thermal_cruise(struct device *dev, struct device_attribute *attr,
730 const char *buf, size_t count)
731{
732 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
733 int nr = sensor_attr->index - 1;
734 struct i2c_client *client = to_i2c_client(dev);
735 struct w83792d_data *data = i2c_get_clientdata(client);
736 u32 val;
737 u8 target_tmp=0, target_mask=0;
738
739 val = simple_strtoul(buf, NULL, 10);
740 target_tmp = val;
741 target_tmp = target_tmp & 0x7f;
bed73082 742 mutex_lock(&data->update_lock);
5563e27d
M		 743 target_mask = w83792d_read_value(client, W83792D_REG_THERMAL[nr]) & 0x80;
744 data->thermal_cruise[nr] = SENSORS_LIMIT(target_tmp, 0, 255);
745 w83792d_write_value(client, W83792D_REG_THERMAL[nr],
746 (data->thermal_cruise[nr]) | target_mask);
bed73082 747 mutex_unlock(&data->update_lock);
5563e27d
M		 748
749 return count;
750}
751
5563e27d
M		 752/* For Smart Fan I/Thermal Cruise and Smart Fan II */
753static ssize_t
754show_tolerance(struct device *dev, struct device_attribute *attr,
755 char *buf)
756{
757 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
758 int nr = sensor_attr->index;
759 struct w83792d_data *data = w83792d_update_device(dev);
760 return sprintf(buf, "%ld\n", (long)data->tolerance[nr-1]);
761}
762
763static ssize_t
764store_tolerance(struct device *dev, struct device_attribute *attr,
765 const char *buf, size_t count)
766{
767 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
768 int nr = sensor_attr->index - 1;
769 struct i2c_client *client = to_i2c_client(dev);
770 struct w83792d_data *data = i2c_get_clientdata(client);
771 u32 val;
772 u8 tol_tmp, tol_mask;
773
774 val = simple_strtoul(buf, NULL, 10);
bed73082 775 mutex_lock(&data->update_lock);
5563e27d
M		 776 tol_mask = w83792d_read_value(client,
777 W83792D_REG_TOLERANCE[nr]) & ((nr == 1) ? 0x0f : 0xf0);
778 tol_tmp = SENSORS_LIMIT(val, 0, 15);
779 tol_tmp &= 0x0f;
780 data->tolerance[nr] = tol_tmp;
781 if (nr == 1) {
782 tol_tmp <<= 4;
783 }
784 w83792d_write_value(client, W83792D_REG_TOLERANCE[nr],
785 tol_mask | tol_tmp);
bed73082 786 mutex_unlock(&data->update_lock);
5563e27d
M		 787
788 return count;
789}
790
5563e27d
M		 791/* For Smart Fan II */
792static ssize_t
793show_sf2_point(struct device *dev, struct device_attribute *attr,
794 char *buf)
795{
796 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
797 int nr = sensor_attr->nr;
798 int index = sensor_attr->index;
799 struct w83792d_data *data = w83792d_update_device(dev);
800 return sprintf(buf, "%ld\n", (long)data->sf2_points[index-1][nr-1]);
801}
802
803static ssize_t
804store_sf2_point(struct device *dev, struct device_attribute *attr,
805 const char *buf, size_t count)
806{
807 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
808 int nr = sensor_attr->nr - 1;
809 int index = sensor_attr->index - 1;
810 struct i2c_client *client = to_i2c_client(dev);
811 struct w83792d_data *data = i2c_get_clientdata(client);
812 u32 val;
813 u8 mask_tmp = 0;
814
815 val = simple_strtoul(buf, NULL, 10);
bed73082 816 mutex_lock(&data->update_lock);
5563e27d
M		 817 data->sf2_points[index][nr] = SENSORS_LIMIT(val, 0, 127);
818 mask_tmp = w83792d_read_value(client,
819 W83792D_REG_POINTS[index][nr]) & 0x80;
820 w83792d_write_value(client, W83792D_REG_POINTS[index][nr],
821 mask_tmp|data->sf2_points[index][nr]);
bed73082 822 mutex_unlock(&data->update_lock);
5563e27d
M		 823
824 return count;
825}
826
5563e27d
M		 827static ssize_t
828show_sf2_level(struct device *dev, struct device_attribute *attr,
829 char *buf)
830{
831 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
832 int nr = sensor_attr->nr;
833 int index = sensor_attr->index;
834 struct w83792d_data *data = w83792d_update_device(dev);
835 return sprintf(buf, "%d\n",
836 (((data->sf2_levels[index-1][nr]) * 100) / 15));
837}
838
839static ssize_t
840store_sf2_level(struct device *dev, struct device_attribute *attr,
841 const char *buf, size_t count)
842{
843 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
844 int nr = sensor_attr->nr;
845 int index = sensor_attr->index - 1;
846 struct i2c_client *client = to_i2c_client(dev);
847 struct w83792d_data *data = i2c_get_clientdata(client);
848 u32 val;
849 u8 mask_tmp=0, level_tmp=0;
850
851 val = simple_strtoul(buf, NULL, 10);
bed73082 852 mutex_lock(&data->update_lock);
5563e27d
M		 853 data->sf2_levels[index][nr] = SENSORS_LIMIT((val * 15) / 100, 0, 15);
854 mask_tmp = w83792d_read_value(client, W83792D_REG_LEVELS[index][nr])
855 & ((nr==3) ? 0xf0 : 0x0f);
856 if (nr==3) {
857 level_tmp = data->sf2_levels[index][nr];
858 } else {
859 level_tmp = data->sf2_levels[index][nr] << 4;
860 }
861 w83792d_write_value(client, W83792D_REG_LEVELS[index][nr], level_tmp | mask_tmp);
bed73082 862 mutex_unlock(&data->update_lock);
5563e27d
M		 863
864 return count;
865}
866
5563e27d
M		 867/* This function is called when:
868 * w83792d_driver is inserted (when this module is loaded), for each
869 available adapter
870 * when a new adapter is inserted (and w83792d_driver is still present) */
871static int
872w83792d_attach_adapter(struct i2c_adapter *adapter)
873{
874 if (!(adapter->class & I2C_CLASS_HWMON))
875 return 0;
2ed2dc3c 876 return i2c_probe(adapter, &addr_data, w83792d_detect);
5563e27d
M		 877}
878
879
880static int
881w83792d_create_subclient(struct i2c_adapter *adapter,
882 struct i2c_client *new_client, int addr,
883 struct i2c_client **sub_cli)
884{
885 int err;
886 struct i2c_client *sub_client;
887
ba9c2e8d 888 (*sub_cli) = sub_client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
5563e27d
M		 889 if (!(sub_client)) {
890 return -ENOMEM;
891 }
5563e27d
M		 892 sub_client->addr = 0x48 + addr;
893 i2c_set_clientdata(sub_client, NULL);
894 sub_client->adapter = adapter;
895 sub_client->driver = &w83792d_driver;
896 sub_client->flags = 0;
897 strlcpy(sub_client->name, "w83792d subclient", I2C_NAME_SIZE);
898 if ((err = i2c_attach_client(sub_client))) {
899 dev_err(&new_client->dev, "subclient registration "
900 "at address 0x%x failed\n", sub_client->addr);
901 kfree(sub_client);
902 return err;
903 }
904 return 0;
905}
906
907
908static int
909w83792d_detect_subclients(struct i2c_adapter *adapter, int address, int kind,
910 struct i2c_client *new_client)
911{
912 int i, id, err;
913 u8 val;
914 struct w83792d_data *data = i2c_get_clientdata(new_client);
915
916 id = i2c_adapter_id(adapter);
917 if (force_subclients[0] == id && force_subclients[1] == address) {
918 for (i = 2; i <= 3; i++) {
919 if (force_subclients[i] < 0x48 ||
920 force_subclients[i] > 0x4f) {
921 dev_err(&new_client->dev, "invalid subclient "
922 "address %d; must be 0x48-0x4f\n",
923 force_subclients[i]);
924 err = -ENODEV;
925 goto ERROR_SC_0;
926 }
927 }
928 w83792d_write_value(new_client, W83792D_REG_I2C_SUBADDR,
929 (force_subclients[2] & 0x07) |
930 ((force_subclients[3] & 0x07) << 4));
931 }
932
933 val = w83792d_read_value(new_client, W83792D_REG_I2C_SUBADDR);
934 if (!(val & 0x08)) {
935 err = w83792d_create_subclient(adapter, new_client, val & 0x7,
936 &data->lm75[0]);
937 if (err < 0)
938 goto ERROR_SC_0;
939 }
940 if (!(val & 0x80)) {
941 if ((data->lm75[0] != NULL) &&
942 ((val & 0x7) == ((val >> 4) & 0x7))) {
943 dev_err(&new_client->dev, "duplicate addresses 0x%x, "
944 "use force_subclient\n", data->lm75[0]->addr);
945 err = -ENODEV;
946 goto ERROR_SC_1;
947 }
948 err = w83792d_create_subclient(adapter, new_client,
949 (val >> 4) & 0x7, &data->lm75[1]);
950 if (err < 0)
951 goto ERROR_SC_1;
952 }
953
954 return 0;
955
956/* Undo inits in case of errors */
957
958ERROR_SC_1:
959 if (data->lm75[0] != NULL) {
960 i2c_detach_client(data->lm75[0]);
961 kfree(data->lm75[0]);
962 }
963ERROR_SC_0:
964 return err;
965}
966
f52f79da
RM		 967static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0);
968static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1);
969static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2);
970static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3);
971static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4);
972static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5);
973static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6);
974static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7);
975static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 8);
976static SENSOR_DEVICE_ATTR(in0_min, S_IWUSR | S_IRUGO,
977 show_in_min, store_in_min, 0);
978static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO,
979 show_in_min, store_in_min, 1);
980static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO,
981 show_in_min, store_in_min, 2);
982static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO,
983 show_in_min, store_in_min, 3);
984static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO,
985 show_in_min, store_in_min, 4);
986static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO,
987 show_in_min, store_in_min, 5);
988static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO,
989 show_in_min, store_in_min, 6);
990static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO,
991 show_in_min, store_in_min, 7);
992static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO,
993 show_in_min, store_in_min, 8);
994static SENSOR_DEVICE_ATTR(in0_max, S_IWUSR | S_IRUGO,
995 show_in_max, store_in_max, 0);
996static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO,
997 show_in_max, store_in_max, 1);
998static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO,
999 show_in_max, store_in_max, 2);
1000static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO,
1001 show_in_max, store_in_max, 3);
1002static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO,
1003 show_in_max, store_in_max, 4);
1004static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO,
1005 show_in_max, store_in_max, 5);
1006static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO,
1007 show_in_max, store_in_max, 6);
1008static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO,
1009 show_in_max, store_in_max, 7);
1010static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO,
1011 show_in_max, store_in_max, 8);
1012static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0);
1013static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0);
1014static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0);
1015static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR,
1016 show_temp1, store_temp1, 0, 1);
1017static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp23,
1018 store_temp23, 0, 2);
1019static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp23,
1020 store_temp23, 1, 2);
1021static SENSOR_DEVICE_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR,
1022 show_temp1, store_temp1, 0, 2);
1023static SENSOR_DEVICE_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR,
1024 show_temp23, store_temp23, 0, 4);
1025static SENSOR_DEVICE_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR,
1026 show_temp23, store_temp23, 1, 4);
1027static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
43e61a2d
GJ		 1028static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
1029static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
1030static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 2);
1031static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 3);
1032static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 4);
1033static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 5);
1034static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 6);
1035static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 7);
1036static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 8);
1037static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 9);
1038static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 10);
1039static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 11);
1040static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 12);
1041static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL, 15);
1042static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 19);
1043static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 20);
1044static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 21);
1045static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 22);
1046static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 23);
f52f79da
RM		 1047static DEVICE_ATTR(chassis, S_IRUGO, show_regs_chassis, NULL);
1048static DEVICE_ATTR(chassis_clear, S_IRUGO | S_IWUSR,
1049 show_chassis_clear, store_chassis_clear);
1050static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0);
1051static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1);
1052static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2);
1053static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
1054 show_pwmenable, store_pwmenable, 1);
1055static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO,
1056 show_pwmenable, store_pwmenable, 2);
1057static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO,
1058 show_pwmenable, store_pwmenable, 3);
1059static SENSOR_DEVICE_ATTR(pwm1_mode, S_IWUSR | S_IRUGO,
1060 show_pwm_mode, store_pwm_mode, 0);
1061static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO,
1062 show_pwm_mode, store_pwm_mode, 1);
1063static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO,
1064 show_pwm_mode, store_pwm_mode, 2);
1065static SENSOR_DEVICE_ATTR(tolerance1, S_IWUSR | S_IRUGO,
1066 show_tolerance, store_tolerance, 1);
1067static SENSOR_DEVICE_ATTR(tolerance2, S_IWUSR | S_IRUGO,
1068 show_tolerance, store_tolerance, 2);
1069static SENSOR_DEVICE_ATTR(tolerance3, S_IWUSR | S_IRUGO,
1070 show_tolerance, store_tolerance, 3);
1071static SENSOR_DEVICE_ATTR(thermal_cruise1, S_IWUSR | S_IRUGO,
1072 show_thermal_cruise, store_thermal_cruise, 1);
1073static SENSOR_DEVICE_ATTR(thermal_cruise2, S_IWUSR | S_IRUGO,
1074 show_thermal_cruise, store_thermal_cruise, 2);
1075static SENSOR_DEVICE_ATTR(thermal_cruise3, S_IWUSR | S_IRUGO,
1076 show_thermal_cruise, store_thermal_cruise, 3);
1077static SENSOR_DEVICE_ATTR_2(sf2_point1_fan1, S_IRUGO | S_IWUSR,
1078 show_sf2_point, store_sf2_point, 1, 1);
1079static SENSOR_DEVICE_ATTR_2(sf2_point2_fan1, S_IRUGO | S_IWUSR,
1080 show_sf2_point, store_sf2_point, 2, 1);
1081static SENSOR_DEVICE_ATTR_2(sf2_point3_fan1, S_IRUGO | S_IWUSR,
1082 show_sf2_point, store_sf2_point, 3, 1);
1083static SENSOR_DEVICE_ATTR_2(sf2_point4_fan1, S_IRUGO | S_IWUSR,
1084 show_sf2_point, store_sf2_point, 4, 1);
1085static SENSOR_DEVICE_ATTR_2(sf2_point1_fan2, S_IRUGO | S_IWUSR,
1086 show_sf2_point, store_sf2_point, 1, 2);
1087static SENSOR_DEVICE_ATTR_2(sf2_point2_fan2, S_IRUGO | S_IWUSR,
1088 show_sf2_point, store_sf2_point, 2, 2);
1089static SENSOR_DEVICE_ATTR_2(sf2_point3_fan2, S_IRUGO | S_IWUSR,
1090 show_sf2_point, store_sf2_point, 3, 2);
1091static SENSOR_DEVICE_ATTR_2(sf2_point4_fan2, S_IRUGO | S_IWUSR,
1092 show_sf2_point, store_sf2_point, 4, 2);
1093static SENSOR_DEVICE_ATTR_2(sf2_point1_fan3, S_IRUGO | S_IWUSR,
1094 show_sf2_point, store_sf2_point, 1, 3);
1095static SENSOR_DEVICE_ATTR_2(sf2_point2_fan3, S_IRUGO | S_IWUSR,
1096 show_sf2_point, store_sf2_point, 2, 3);
1097static SENSOR_DEVICE_ATTR_2(sf2_point3_fan3, S_IRUGO | S_IWUSR,
1098 show_sf2_point, store_sf2_point, 3, 3);
1099static SENSOR_DEVICE_ATTR_2(sf2_point4_fan3, S_IRUGO | S_IWUSR,
1100 show_sf2_point, store_sf2_point, 4, 3);
1101static SENSOR_DEVICE_ATTR_2(sf2_level1_fan1, S_IRUGO | S_IWUSR,
1102 show_sf2_level, store_sf2_level, 1, 1);
1103static SENSOR_DEVICE_ATTR_2(sf2_level2_fan1, S_IRUGO | S_IWUSR,
1104 show_sf2_level, store_sf2_level, 2, 1);
1105static SENSOR_DEVICE_ATTR_2(sf2_level3_fan1, S_IRUGO | S_IWUSR,
1106 show_sf2_level, store_sf2_level, 3, 1);
1107static SENSOR_DEVICE_ATTR_2(sf2_level1_fan2, S_IRUGO | S_IWUSR,
1108 show_sf2_level, store_sf2_level, 1, 2);
1109static SENSOR_DEVICE_ATTR_2(sf2_level2_fan2, S_IRUGO | S_IWUSR,
1110 show_sf2_level, store_sf2_level, 2, 2);
1111static SENSOR_DEVICE_ATTR_2(sf2_level3_fan2, S_IRUGO | S_IWUSR,
1112 show_sf2_level, store_sf2_level, 3, 2);
1113static SENSOR_DEVICE_ATTR_2(sf2_level1_fan3, S_IRUGO | S_IWUSR,
1114 show_sf2_level, store_sf2_level, 1, 3);
1115static SENSOR_DEVICE_ATTR_2(sf2_level2_fan3, S_IRUGO | S_IWUSR,
1116 show_sf2_level, store_sf2_level, 2, 3);
1117static SENSOR_DEVICE_ATTR_2(sf2_level3_fan3, S_IRUGO | S_IWUSR,
1118 show_sf2_level, store_sf2_level, 3, 3);
1119static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 1);
1120static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 2);
1121static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 3);
1122static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 4);
1123static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 5);
1124static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan, NULL, 6);
1125static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan, NULL, 7);
1126static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO,
1127 show_fan_min, store_fan_min, 1);
1128static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO,
1129 show_fan_min, store_fan_min, 2);
1130static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO,
1131 show_fan_min, store_fan_min, 3);
1132static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO,
1133 show_fan_min, store_fan_min, 4);
1134static SENSOR_DEVICE_ATTR(fan5_min, S_IWUSR | S_IRUGO,
1135 show_fan_min, store_fan_min, 5);
1136static SENSOR_DEVICE_ATTR(fan6_min, S_IWUSR | S_IRUGO,
1137 show_fan_min, store_fan_min, 6);
1138static SENSOR_DEVICE_ATTR(fan7_min, S_IWUSR | S_IRUGO,
1139 show_fan_min, store_fan_min, 7);
1140static SENSOR_DEVICE_ATTR(fan1_div, S_IWUSR | S_IRUGO,
1141 show_fan_div, store_fan_div, 1);
1142static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR | S_IRUGO,
1143 show_fan_div, store_fan_div, 2);
1144static SENSOR_DEVICE_ATTR(fan3_div, S_IWUSR | S_IRUGO,
1145 show_fan_div, store_fan_div, 3);
1146static SENSOR_DEVICE_ATTR(fan4_div, S_IWUSR | S_IRUGO,
1147 show_fan_div, store_fan_div, 4);
1148static SENSOR_DEVICE_ATTR(fan5_div, S_IWUSR | S_IRUGO,
1149 show_fan_div, store_fan_div, 5);
1150static SENSOR_DEVICE_ATTR(fan6_div, S_IWUSR | S_IRUGO,
1151 show_fan_div, store_fan_div, 6);
1152static SENSOR_DEVICE_ATTR(fan7_div, S_IWUSR | S_IRUGO,
1153 show_fan_div, store_fan_div, 7);
1154
43e61a2d 1155static struct attribute *w83792d_attributes_fan[4][5] = {
f52f79da
RM		 1156 {
1157 &sensor_dev_attr_fan4_input.dev_attr.attr,
1158 &sensor_dev_attr_fan4_min.dev_attr.attr,
1159 &sensor_dev_attr_fan4_div.dev_attr.attr,
43e61a2d 1160 &sensor_dev_attr_fan4_alarm.dev_attr.attr,
f52f79da
RM		 1161 NULL
1162 }, {
1163 &sensor_dev_attr_fan5_input.dev_attr.attr,
1164 &sensor_dev_attr_fan5_min.dev_attr.attr,
1165 &sensor_dev_attr_fan5_div.dev_attr.attr,
43e61a2d 1166 &sensor_dev_attr_fan5_alarm.dev_attr.attr,
f52f79da
RM		 1167 NULL
1168 }, {
1169 &sensor_dev_attr_fan6_input.dev_attr.attr,
1170 &sensor_dev_attr_fan6_min.dev_attr.attr,
1171 &sensor_dev_attr_fan6_div.dev_attr.attr,
43e61a2d 1172 &sensor_dev_attr_fan6_alarm.dev_attr.attr,
f52f79da
RM		 1173 NULL
1174 }, {
1175 &sensor_dev_attr_fan7_input.dev_attr.attr,
1176 &sensor_dev_attr_fan7_min.dev_attr.attr,
1177 &sensor_dev_attr_fan7_div.dev_attr.attr,
43e61a2d 1178 &sensor_dev_attr_fan7_alarm.dev_attr.attr,
f52f79da
RM		 1179 NULL
1180 }
1181};
1182
1183static const struct attribute_group w83792d_group_fan[4] = {
1184 { .attrs = w83792d_attributes_fan[0] },
1185 { .attrs = w83792d_attributes_fan[1] },
1186 { .attrs = w83792d_attributes_fan[2] },
1187 { .attrs = w83792d_attributes_fan[3] },
1188};
1189
1190static struct attribute *w83792d_attributes[] = {
1191 &sensor_dev_attr_in0_input.dev_attr.attr,
1192 &sensor_dev_attr_in0_max.dev_attr.attr,
1193 &sensor_dev_attr_in0_min.dev_attr.attr,
1194 &sensor_dev_attr_in1_input.dev_attr.attr,
1195 &sensor_dev_attr_in1_max.dev_attr.attr,
1196 &sensor_dev_attr_in1_min.dev_attr.attr,
1197 &sensor_dev_attr_in2_input.dev_attr.attr,
1198 &sensor_dev_attr_in2_max.dev_attr.attr,
1199 &sensor_dev_attr_in2_min.dev_attr.attr,
1200 &sensor_dev_attr_in3_input.dev_attr.attr,
1201 &sensor_dev_attr_in3_max.dev_attr.attr,
1202 &sensor_dev_attr_in3_min.dev_attr.attr,
1203 &sensor_dev_attr_in4_input.dev_attr.attr,
1204 &sensor_dev_attr_in4_max.dev_attr.attr,
1205 &sensor_dev_attr_in4_min.dev_attr.attr,
1206 &sensor_dev_attr_in5_input.dev_attr.attr,
1207 &sensor_dev_attr_in5_max.dev_attr.attr,
1208 &sensor_dev_attr_in5_min.dev_attr.attr,
1209 &sensor_dev_attr_in6_input.dev_attr.attr,
1210 &sensor_dev_attr_in6_max.dev_attr.attr,
1211 &sensor_dev_attr_in6_min.dev_attr.attr,
1212 &sensor_dev_attr_in7_input.dev_attr.attr,
1213 &sensor_dev_attr_in7_max.dev_attr.attr,
1214 &sensor_dev_attr_in7_min.dev_attr.attr,
1215 &sensor_dev_attr_in8_input.dev_attr.attr,
1216 &sensor_dev_attr_in8_max.dev_attr.attr,
1217 &sensor_dev_attr_in8_min.dev_attr.attr,
43e61a2d
GJ		 1218 &sensor_dev_attr_in0_alarm.dev_attr.attr,
1219 &sensor_dev_attr_in1_alarm.dev_attr.attr,
1220 &sensor_dev_attr_in2_alarm.dev_attr.attr,
1221 &sensor_dev_attr_in3_alarm.dev_attr.attr,
1222 &sensor_dev_attr_in4_alarm.dev_attr.attr,
1223 &sensor_dev_attr_in5_alarm.dev_attr.attr,
1224 &sensor_dev_attr_in6_alarm.dev_attr.attr,
1225 &sensor_dev_attr_in7_alarm.dev_attr.attr,
1226 &sensor_dev_attr_in8_alarm.dev_attr.attr,
f52f79da
RM		 1227 &sensor_dev_attr_temp1_input.dev_attr.attr,
1228 &sensor_dev_attr_temp1_max.dev_attr.attr,
1229 &sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
1230 &sensor_dev_attr_temp2_input.dev_attr.attr,
1231 &sensor_dev_attr_temp2_max.dev_attr.attr,
1232 &sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
1233 &sensor_dev_attr_temp3_input.dev_attr.attr,
1234 &sensor_dev_attr_temp3_max.dev_attr.attr,
1235 &sensor_dev_attr_temp3_max_hyst.dev_attr.attr,
43e61a2d
GJ		 1236 &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1237 &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1238 &sensor_dev_attr_temp3_alarm.dev_attr.attr,
f52f79da
RM		 1239 &sensor_dev_attr_pwm1.dev_attr.attr,
1240 &sensor_dev_attr_pwm1_mode.dev_attr.attr,
1241 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
1242 &sensor_dev_attr_pwm2.dev_attr.attr,
1243 &sensor_dev_attr_pwm2_mode.dev_attr.attr,
1244 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
1245 &sensor_dev_attr_pwm3.dev_attr.attr,
1246 &sensor_dev_attr_pwm3_mode.dev_attr.attr,
1247 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
1248 &dev_attr_alarms.attr,
1249 &dev_attr_chassis.attr,
1250 &dev_attr_chassis_clear.attr,
1251 &sensor_dev_attr_tolerance1.dev_attr.attr,
1252 &sensor_dev_attr_thermal_cruise1.dev_attr.attr,
1253 &sensor_dev_attr_tolerance2.dev_attr.attr,
1254 &sensor_dev_attr_thermal_cruise2.dev_attr.attr,
1255 &sensor_dev_attr_tolerance3.dev_attr.attr,
1256 &sensor_dev_attr_thermal_cruise3.dev_attr.attr,
1257 &sensor_dev_attr_sf2_point1_fan1.dev_attr.attr,
1258 &sensor_dev_attr_sf2_point2_fan1.dev_attr.attr,
1259 &sensor_dev_attr_sf2_point3_fan1.dev_attr.attr,
1260 &sensor_dev_attr_sf2_point4_fan1.dev_attr.attr,
1261 &sensor_dev_attr_sf2_point1_fan2.dev_attr.attr,
1262 &sensor_dev_attr_sf2_point2_fan2.dev_attr.attr,
1263 &sensor_dev_attr_sf2_point3_fan2.dev_attr.attr,
1264 &sensor_dev_attr_sf2_point4_fan2.dev_attr.attr,
1265 &sensor_dev_attr_sf2_point1_fan3.dev_attr.attr,
1266 &sensor_dev_attr_sf2_point2_fan3.dev_attr.attr,
1267 &sensor_dev_attr_sf2_point3_fan3.dev_attr.attr,
1268 &sensor_dev_attr_sf2_point4_fan3.dev_attr.attr,
1269 &sensor_dev_attr_sf2_level1_fan1.dev_attr.attr,
1270 &sensor_dev_attr_sf2_level2_fan1.dev_attr.attr,
1271 &sensor_dev_attr_sf2_level3_fan1.dev_attr.attr,
1272 &sensor_dev_attr_sf2_level1_fan2.dev_attr.attr,
1273 &sensor_dev_attr_sf2_level2_fan2.dev_attr.attr,
1274 &sensor_dev_attr_sf2_level3_fan2.dev_attr.attr,
1275 &sensor_dev_attr_sf2_level1_fan3.dev_attr.attr,
1276 &sensor_dev_attr_sf2_level2_fan3.dev_attr.attr,
1277 &sensor_dev_attr_sf2_level3_fan3.dev_attr.attr,
1278 &sensor_dev_attr_fan1_input.dev_attr.attr,
1279 &sensor_dev_attr_fan1_min.dev_attr.attr,
1280 &sensor_dev_attr_fan1_div.dev_attr.attr,
43e61a2d 1281 &sensor_dev_attr_fan1_alarm.dev_attr.attr,
f52f79da
RM		 1282 &sensor_dev_attr_fan2_input.dev_attr.attr,
1283 &sensor_dev_attr_fan2_min.dev_attr.attr,
1284 &sensor_dev_attr_fan2_div.dev_attr.attr,
43e61a2d 1285 &sensor_dev_attr_fan2_alarm.dev_attr.attr,
f52f79da
RM		 1286 &sensor_dev_attr_fan3_input.dev_attr.attr,
1287 &sensor_dev_attr_fan3_min.dev_attr.attr,
1288 &sensor_dev_attr_fan3_div.dev_attr.attr,
43e61a2d 1289 &sensor_dev_attr_fan3_alarm.dev_attr.attr,
f52f79da
RM		 1290 NULL
1291};
1292
1293static const struct attribute_group w83792d_group = {
1294 .attrs = w83792d_attributes,
1295};
5563e27d
M		 1296
1297static int
1298w83792d_detect(struct i2c_adapter *adapter, int address, int kind)
1299{
1300 int i = 0, val1 = 0, val2;
1f8dae31
YM		 1301 struct i2c_client *client;
1302 struct device *dev;
5563e27d
M		 1303 struct w83792d_data *data;
1304 int err = 0;
1305 const char *client_name = "";
1306
1307 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
1308 goto ERROR0;
1309 }
1310
1311 /* OK. For now, we presume we have a valid client. We now create the
1312 client structure, even though we cannot fill it completely yet.
1313 But it allows us to access w83792d_{read,write}_value. */
1314
ba9c2e8d 1315 if (!(data = kzalloc(sizeof(struct w83792d_data), GFP_KERNEL))) {
5563e27d
M		 1316 err = -ENOMEM;
1317 goto ERROR0;
1318 }
5563e27d 1319
1f8dae31
YM		 1320 client = &data->client;
1321 dev = &client->dev;
1322 i2c_set_clientdata(client, data);
1323 client->addr = address;
1324 client->adapter = adapter;
1325 client->driver = &w83792d_driver;
1326 client->flags = 0;
5563e27d
M		 1327
1328 /* Now, we do the remaining detection. */
1329
1330 /* The w83792d may be stuck in some other bank than bank 0. This may
1331 make reading other information impossible. Specify a force=... or
1332 force_*=... parameter, and the Winbond will be reset to the right
1333 bank. */
1334 if (kind < 0) {
1f8dae31 1335 if (w83792d_read_value(client, W83792D_REG_CONFIG) & 0x80) {
ac987c1f 1336 dev_dbg(dev, "Detection failed at step 1\n");
5563e27d
M		 1337 goto ERROR1;
1338 }
1f8dae31
YM		 1339 val1 = w83792d_read_value(client, W83792D_REG_BANK);
1340 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
5563e27d
M		 1341 /* Check for Winbond ID if in bank 0 */
1342 if (!(val1 & 0x07)) { /* is Bank0 */
1343 if (((!(val1 & 0x80)) && (val2 != 0xa3)) ||
1344 ((val1 & 0x80) && (val2 != 0x5c))) {
ac987c1f 1345 dev_dbg(dev, "Detection failed at step 2\n");
5563e27d
M		 1346 goto ERROR1;
1347 }
1348 }
1349 /* If Winbond chip, address of chip and W83792D_REG_I2C_ADDR
1350 should match */
1f8dae31 1351 if (w83792d_read_value(client,
5563e27d 1352 W83792D_REG_I2C_ADDR) != address) {
ac987c1f 1353 dev_dbg(dev, "Detection failed at step 3\n");
5563e27d
M		 1354 goto ERROR1;
1355 }
1356 }
1357
1358 /* We have either had a force parameter, or we have already detected the
1359 Winbond. Put it now into bank 0 and Vendor ID High Byte */
1f8dae31 1360 w83792d_write_value(client,
5563e27d 1361 W83792D_REG_BANK,
1f8dae31 1362 (w83792d_read_value(client,
5563e27d
M		 1363 W83792D_REG_BANK) & 0x78) | 0x80);
1364
1365 /* Determine the chip type. */
1366 if (kind <= 0) {
1367 /* get vendor ID */
1f8dae31 1368 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
5563e27d
M		 1369 if (val2 != 0x5c) { /* the vendor is NOT Winbond */
1370 goto ERROR1;
1371 }
1f8dae31 1372 val1 = w83792d_read_value(client, W83792D_REG_WCHIPID);
c9152dea 1373 if (val1 == 0x7a) {
5563e27d
M		 1374 kind = w83792d;
1375 } else {
1376 if (kind == 0)
1f8dae31 1377 dev_warn(dev,
5563e27d
M		 1378 "w83792d: Ignoring 'force' parameter for"
1379 " unknown chip at adapter %d, address"
1380 " 0x%02x\n", i2c_adapter_id(adapter),
1381 address);
1382 goto ERROR1;
1383 }
1384 }
1385
1386 if (kind == w83792d) {
1387 client_name = "w83792d";
1388 } else {
898eb71c
JP		 1389 dev_err(dev, "w83792d: Internal error: unknown kind (%d)?!?\n",
1390 kind);
5563e27d
M		 1391 goto ERROR1;
1392 }
1393
1394 /* Fill in the remaining client fields and put into the global list */
1f8dae31 1395 strlcpy(client->name, client_name, I2C_NAME_SIZE);
5563e27d
M		 1396 data->type = kind;
1397
1398 data->valid = 0;
9a61bf63 1399 mutex_init(&data->update_lock);
5563e27d
M		 1400
1401 /* Tell the I2C layer a new client has arrived */
1f8dae31 1402 if ((err = i2c_attach_client(client)))
5563e27d
M		 1403 goto ERROR1;
1404
1405 if ((err = w83792d_detect_subclients(adapter, address,
1f8dae31 1406 kind, client)))
5563e27d
M		 1407 goto ERROR2;
1408
1409 /* Initialize the chip */
1f8dae31 1410 w83792d_init_client(client);
5563e27d
M		 1411
1412 /* A few vars need to be filled upon startup */
96320519 1413 for (i = 0; i < 7; i++) {
1f8dae31 1414 data->fan_min[i] = w83792d_read_value(client,
5563e27d
M		 1415 W83792D_REG_FAN_MIN[i]);
1416 }
1417
1418 /* Register sysfs hooks */
f52f79da 1419 if ((err = sysfs_create_group(&dev->kobj, &w83792d_group)))
ce785ab4 1420 goto ERROR3;
96320519
JD		 1421
1422 /* Read GPIO enable register to check if pins for fan 4,5 are used as
1423 GPIO */
1f8dae31 1424 val1 = w83792d_read_value(client, W83792D_REG_GPIO_EN);
f52f79da 1425
96320519 1426 if (!(val1 & 0x40))
f52f79da
RM		 1427 if ((err = sysfs_create_group(&dev->kobj,
1428 &w83792d_group_fan[0])))
1429 goto exit_remove_files;
1430
96320519 1431 if (!(val1 & 0x20))
f52f79da
RM		 1432 if ((err = sysfs_create_group(&dev->kobj,
1433 &w83792d_group_fan[1])))
1434 goto exit_remove_files;
96320519 1435
1f8dae31 1436 val1 = w83792d_read_value(client, W83792D_REG_PIN);
96320519 1437 if (val1 & 0x40)
f52f79da
RM		 1438 if ((err = sysfs_create_group(&dev->kobj,
1439 &w83792d_group_fan[2])))
1440 goto exit_remove_files;
1441
96320519 1442 if (val1 & 0x04)
f52f79da
RM		 1443 if ((err = sysfs_create_group(&dev->kobj,
1444 &w83792d_group_fan[3])))
1445 goto exit_remove_files;
1f8dae31 1446
1beeffe4
TJ		 1447 data->hwmon_dev = hwmon_device_register(dev);
1448 if (IS_ERR(data->hwmon_dev)) {
1449 err = PTR_ERR(data->hwmon_dev);
f52f79da 1450 goto exit_remove_files;
1f8dae31
YM		 1451 }
1452
5563e27d
M		 1453 return 0;
1454
f52f79da
RM		 1455exit_remove_files:
1456 sysfs_remove_group(&dev->kobj, &w83792d_group);
1457 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
1458 sysfs_remove_group(&dev->kobj, &w83792d_group_fan[i]);
ce785ab4
M		 1459ERROR3:
1460 if (data->lm75[0] != NULL) {
1461 i2c_detach_client(data->lm75[0]);
1462 kfree(data->lm75[0]);
1463 }
1464 if (data->lm75[1] != NULL) {
1465 i2c_detach_client(data->lm75[1]);
1466 kfree(data->lm75[1]);
1467 }
5563e27d 1468ERROR2:
1f8dae31 1469 i2c_detach_client(client);
5563e27d
M		 1470ERROR1:
1471 kfree(data);
1472ERROR0:
1473 return err;
1474}
1475
1476static int
1477w83792d_detach_client(struct i2c_client *client)
1478{
ce785ab4 1479 struct w83792d_data *data = i2c_get_clientdata(client);
f52f79da 1480 int err, i;
5563e27d 1481
ce785ab4 1482 /* main client */
f52f79da 1483 if (data) {
1beeffe4 1484 hwmon_device_unregister(data->hwmon_dev);
f52f79da
RM		 1485 sysfs_remove_group(&client->dev.kobj, &w83792d_group);
1486 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
1487 sysfs_remove_group(&client->dev.kobj,
1488 &w83792d_group_fan[i]);
1489 }
ce785ab4 1490
7bef5594 1491 if ((err = i2c_detach_client(client)))
5563e27d 1492 return err;
5563e27d 1493
ce785ab4
M		 1494 /* main client */
1495 if (data)
1496 kfree(data);
1497 /* subclient */
1498 else
5563e27d 1499 kfree(client);
5563e27d
M		 1500
1501 return 0;
1502}
1503
5563e27d
M		 1504static void
1505w83792d_init_client(struct i2c_client *client)
1506{
1507 u8 temp2_cfg, temp3_cfg, vid_in_b;
1508
1509 if (init) {
1510 w83792d_write_value(client, W83792D_REG_CONFIG, 0x80);
1511 }
1512 /* Clear the bit6 of W83792D_REG_VID_IN_B(set it into 0):
1513 W83792D_REG_VID_IN_B bit6 = 0: the high/low limit of
1514 vin0/vin1 can be modified by user;
1515 W83792D_REG_VID_IN_B bit6 = 1: the high/low limit of
1516 vin0/vin1 auto-updated, can NOT be modified by user. */
1517 vid_in_b = w83792d_read_value(client, W83792D_REG_VID_IN_B);
1518 w83792d_write_value(client, W83792D_REG_VID_IN_B,
1519 vid_in_b & 0xbf);
1520
1521 temp2_cfg = w83792d_read_value(client, W83792D_REG_TEMP2_CONFIG);
1522 temp3_cfg = w83792d_read_value(client, W83792D_REG_TEMP3_CONFIG);
1523 w83792d_write_value(client, W83792D_REG_TEMP2_CONFIG,
1524 temp2_cfg & 0xe6);
1525 w83792d_write_value(client, W83792D_REG_TEMP3_CONFIG,
1526 temp3_cfg & 0xe6);
1527
1528 /* Start monitoring */
1529 w83792d_write_value(client, W83792D_REG_CONFIG,
1530 (w83792d_read_value(client,
1531 W83792D_REG_CONFIG) & 0xf7)
1532 | 0x01);
1533}
1534
1535static struct w83792d_data *w83792d_update_device(struct device *dev)
1536{
1537 struct i2c_client *client = to_i2c_client(dev);
1538 struct w83792d_data *data = i2c_get_clientdata(client);
1539 int i, j;
53e2761b 1540 u8 reg_array_tmp[4], reg_tmp;
5563e27d 1541
9a61bf63 1542 mutex_lock(&data->update_lock);
5563e27d
M		 1543
1544 if (time_after
1545 (jiffies - data->last_updated, (unsigned long) (HZ * 3))
1546 || time_before(jiffies, data->last_updated) || !data->valid) {
1547 dev_dbg(dev, "Starting device update\n");
1548
1549 /* Update the voltages measured value and limits */
1550 for (i = 0; i < 9; i++) {
1551 data->in[i] = w83792d_read_value(client,
1552 W83792D_REG_IN[i]);
1553 data->in_max[i] = w83792d_read_value(client,
1554 W83792D_REG_IN_MAX[i]);
1555 data->in_min[i] = w83792d_read_value(client,
1556 W83792D_REG_IN_MIN[i]);
1557 }
99d85560
JD		 1558 data->low_bits = w83792d_read_value(client,
1559 W83792D_REG_LOW_BITS1) +
1560 (w83792d_read_value(client,
1561 W83792D_REG_LOW_BITS2) << 8);
5563e27d
M		 1562 for (i = 0; i < 7; i++) {
1563 /* Update the Fan measured value and limits */
1564 data->fan[i] = w83792d_read_value(client,
1565 W83792D_REG_FAN[i]);
1566 data->fan_min[i] = w83792d_read_value(client,
1567 W83792D_REG_FAN_MIN[i]);
1568 /* Update the PWM/DC Value and PWM/DC flag */
53e2761b 1569 data->pwm[i] = w83792d_read_value(client,
5563e27d 1570 W83792D_REG_PWM[i]);
5563e27d
M		 1571 }
1572
1573 reg_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG);
1574 data->pwmenable[0] = reg_tmp & 0x03;
1575 data->pwmenable[1] = (reg_tmp>>2) & 0x03;
1576 data->pwmenable[2] = (reg_tmp>>4) & 0x03;
1577
1578 for (i = 0; i < 3; i++) {
1579 data->temp1[i] = w83792d_read_value(client,
1580 W83792D_REG_TEMP1[i]);
1581 }
1582 for (i = 0; i < 2; i++) {
1583 for (j = 0; j < 6; j++) {
1584 data->temp_add[i][j] = w83792d_read_value(
1585 client,W83792D_REG_TEMP_ADD[i][j]);
1586 }
1587 }
1588
1589 /* Update the Fan Divisor */
1590 for (i = 0; i < 4; i++) {
1591 reg_array_tmp[i] = w83792d_read_value(client,
1592 W83792D_REG_FAN_DIV[i]);
1593 }
1594 data->fan_div[0] = reg_array_tmp[0] & 0x07;
1595 data->fan_div[1] = (reg_array_tmp[0] >> 4) & 0x07;
1596 data->fan_div[2] = reg_array_tmp[1] & 0x07;
1597 data->fan_div[3] = (reg_array_tmp[1] >> 4) & 0x07;
1598 data->fan_div[4] = reg_array_tmp[2] & 0x07;
1599 data->fan_div[5] = (reg_array_tmp[2] >> 4) & 0x07;
1600 data->fan_div[6] = reg_array_tmp[3] & 0x07;
1601
1602 /* Update the realtime status */
1603 data->alarms = w83792d_read_value(client, W83792D_REG_ALARM1) +
1604 (w83792d_read_value(client, W83792D_REG_ALARM2) << 8) +
1605 (w83792d_read_value(client, W83792D_REG_ALARM3) << 16);
1606
1607 /* Update CaseOpen status and it's CLR_CHS. */
1608 data->chassis = (w83792d_read_value(client,
1609 W83792D_REG_CHASSIS) >> 5) & 0x01;
1610 data->chassis_clear = (w83792d_read_value(client,
1611 W83792D_REG_CHASSIS_CLR) >> 7) & 0x01;
1612
1613 /* Update Thermal Cruise/Smart Fan I target value */
1614 for (i = 0; i < 3; i++) {
1615 data->thermal_cruise[i] =
1616 w83792d_read_value(client,
1617 W83792D_REG_THERMAL[i]) & 0x7f;
1618 }
1619
1620 /* Update Smart Fan I/II tolerance */
1621 reg_tmp = w83792d_read_value(client, W83792D_REG_TOLERANCE[0]);
1622 data->tolerance[0] = reg_tmp & 0x0f;
1623 data->tolerance[1] = (reg_tmp >> 4) & 0x0f;
1624 data->tolerance[2] = w83792d_read_value(client,
1625 W83792D_REG_TOLERANCE[2]) & 0x0f;
1626
1627 /* Update Smart Fan II temperature points */
1628 for (i = 0; i < 3; i++) {
1629 for (j = 0; j < 4; j++) {
1630 data->sf2_points[i][j] = w83792d_read_value(
1631 client,W83792D_REG_POINTS[i][j]) & 0x7f;
1632 }
1633 }
1634
1635 /* Update Smart Fan II duty cycle levels */
1636 for (i = 0; i < 3; i++) {
1637 reg_tmp = w83792d_read_value(client,
1638 W83792D_REG_LEVELS[i][0]);
1639 data->sf2_levels[i][0] = reg_tmp & 0x0f;
1640 data->sf2_levels[i][1] = (reg_tmp >> 4) & 0x0f;
1641 reg_tmp = w83792d_read_value(client,
1642 W83792D_REG_LEVELS[i][2]);
1643 data->sf2_levels[i][2] = (reg_tmp >> 4) & 0x0f;
1644 data->sf2_levels[i][3] = reg_tmp & 0x0f;
1645 }
1646
1647 data->last_updated = jiffies;
1648 data->valid = 1;
1649 }
1650
9a61bf63 1651 mutex_unlock(&data->update_lock);
5563e27d
M		 1652
1653#ifdef DEBUG
1654 w83792d_print_debug(data, dev);
1655#endif
1656
1657 return data;
1658}
1659
1660#ifdef DEBUG
1661static void w83792d_print_debug(struct w83792d_data *data, struct device *dev)
1662{
1663 int i=0, j=0;
1664 dev_dbg(dev, "==========The following is the debug message...========\n");
1665 dev_dbg(dev, "9 set of Voltages: =====>\n");
1666 for (i=0; i<9; i++) {
1667 dev_dbg(dev, "vin[%d] is: 0x%x\n", i, data->in[i]);
1668 dev_dbg(dev, "vin[%d] max is: 0x%x\n", i, data->in_max[i]);
1669 dev_dbg(dev, "vin[%d] min is: 0x%x\n", i, data->in_min[i]);
1670 }
99d85560
JD		 1671 dev_dbg(dev, "Low Bit1 is: 0x%x\n", data->low_bits & 0xff);
1672 dev_dbg(dev, "Low Bit2 is: 0x%x\n", data->low_bits >> 8);
5563e27d
M		 1673 dev_dbg(dev, "7 set of Fan Counts and Duty Cycles: =====>\n");
1674 for (i=0; i<7; i++) {
1675 dev_dbg(dev, "fan[%d] is: 0x%x\n", i, data->fan[i]);
1676 dev_dbg(dev, "fan[%d] min is: 0x%x\n", i, data->fan_min[i]);
1677 dev_dbg(dev, "pwm[%d] is: 0x%x\n", i, data->pwm[i]);
5563e27d
M		 1678 }
1679 dev_dbg(dev, "3 set of Temperatures: =====>\n");
1680 for (i=0; i<3; i++) {
1681 dev_dbg(dev, "temp1[%d] is: 0x%x\n", i, data->temp1[i]);
1682 }
1683
1684 for (i=0; i<2; i++) {
1685 for (j=0; j<6; j++) {
1686 dev_dbg(dev, "temp_add[%d][%d] is: 0x%x\n", i, j,
1687 data->temp_add[i][j]);
1688 }
1689 }
1690
1691 for (i=0; i<7; i++) {
1692 dev_dbg(dev, "fan_div[%d] is: 0x%x\n", i, data->fan_div[i]);
1693 }
1694 dev_dbg(dev, "==========End of the debug message...==================\n");
1695 dev_dbg(dev, "\n");
1696}
1697#endif
1698
1699static int __init
1700sensors_w83792d_init(void)
1701{
1702 return i2c_add_driver(&w83792d_driver);
1703}
1704
1705static void __exit
1706sensors_w83792d_exit(void)
1707{
1708 i2c_del_driver(&w83792d_driver);
1709}
1710
1711MODULE_AUTHOR("Chunhao Huang @ Winbond <DZShen@Winbond.com.tw>");
1712MODULE_DESCRIPTION("W83792AD/D driver for linux-2.6");
1713MODULE_LICENSE("GPL");
1714
1715module_init(sensors_w83792d_init);
1716module_exit(sensors_w83792d_exit);
1717
Linux 6.x block layer and io_uring tree(s)