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9873964d CS |
1 | /* |
2 | w83791d.c - Part of lm_sensors, Linux kernel modules for hardware | |
3 | monitoring | |
4 | ||
64383123 | 5 | Copyright (C) 2006-2007 Charles Spirakis <bezaur@gmail.com> |
9873964d CS |
6 | |
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
20 | */ | |
21 | ||
22 | /* | |
23 | Supports following chips: | |
24 | ||
25 | Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA | |
26 | w83791d 10 5 3 3 0x71 0x5ca3 yes no | |
27 | ||
28 | The w83791d chip appears to be part way between the 83781d and the | |
29 | 83792d. Thus, this file is derived from both the w83792d.c and | |
125751cb CS |
30 | w83781d.c files. |
31 | ||
32 | The w83791g chip is the same as the w83791d but lead-free. | |
9873964d CS |
33 | */ |
34 | ||
9873964d CS |
35 | #include <linux/module.h> |
36 | #include <linux/init.h> | |
37 | #include <linux/slab.h> | |
38 | #include <linux/i2c.h> | |
39 | #include <linux/hwmon.h> | |
40 | #include <linux/hwmon-vid.h> | |
41 | #include <linux/hwmon-sysfs.h> | |
42 | #include <linux/err.h> | |
43 | #include <linux/mutex.h> | |
44 | ||
45 | #define NUMBER_OF_VIN 10 | |
46 | #define NUMBER_OF_FANIN 5 | |
47 | #define NUMBER_OF_TEMPIN 3 | |
48 | ||
49 | /* Addresses to scan */ | |
50 | static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f, I2C_CLIENT_END }; | |
51 | ||
52 | /* Insmod parameters */ | |
53 | I2C_CLIENT_INSMOD_1(w83791d); | |
54 | I2C_CLIENT_MODULE_PARM(force_subclients, "List of subclient addresses: " | |
55 | "{bus, clientaddr, subclientaddr1, subclientaddr2}"); | |
56 | ||
57 | static int reset; | |
58 | module_param(reset, bool, 0); | |
59 | MODULE_PARM_DESC(reset, "Set to one to force a hardware chip reset"); | |
60 | ||
61 | static int init; | |
62 | module_param(init, bool, 0); | |
63 | MODULE_PARM_DESC(init, "Set to one to force extra software initialization"); | |
64 | ||
65 | /* The W83791D registers */ | |
66 | static const u8 W83791D_REG_IN[NUMBER_OF_VIN] = { | |
67 | 0x20, /* VCOREA in DataSheet */ | |
68 | 0x21, /* VINR0 in DataSheet */ | |
69 | 0x22, /* +3.3VIN in DataSheet */ | |
70 | 0x23, /* VDD5V in DataSheet */ | |
71 | 0x24, /* +12VIN in DataSheet */ | |
72 | 0x25, /* -12VIN in DataSheet */ | |
73 | 0x26, /* -5VIN in DataSheet */ | |
74 | 0xB0, /* 5VSB in DataSheet */ | |
75 | 0xB1, /* VBAT in DataSheet */ | |
76 | 0xB2 /* VINR1 in DataSheet */ | |
77 | }; | |
78 | ||
79 | static const u8 W83791D_REG_IN_MAX[NUMBER_OF_VIN] = { | |
80 | 0x2B, /* VCOREA High Limit in DataSheet */ | |
81 | 0x2D, /* VINR0 High Limit in DataSheet */ | |
82 | 0x2F, /* +3.3VIN High Limit in DataSheet */ | |
83 | 0x31, /* VDD5V High Limit in DataSheet */ | |
84 | 0x33, /* +12VIN High Limit in DataSheet */ | |
85 | 0x35, /* -12VIN High Limit in DataSheet */ | |
86 | 0x37, /* -5VIN High Limit in DataSheet */ | |
87 | 0xB4, /* 5VSB High Limit in DataSheet */ | |
88 | 0xB6, /* VBAT High Limit in DataSheet */ | |
89 | 0xB8 /* VINR1 High Limit in DataSheet */ | |
90 | }; | |
91 | static const u8 W83791D_REG_IN_MIN[NUMBER_OF_VIN] = { | |
92 | 0x2C, /* VCOREA Low Limit in DataSheet */ | |
93 | 0x2E, /* VINR0 Low Limit in DataSheet */ | |
94 | 0x30, /* +3.3VIN Low Limit in DataSheet */ | |
95 | 0x32, /* VDD5V Low Limit in DataSheet */ | |
96 | 0x34, /* +12VIN Low Limit in DataSheet */ | |
97 | 0x36, /* -12VIN Low Limit in DataSheet */ | |
98 | 0x38, /* -5VIN Low Limit in DataSheet */ | |
99 | 0xB5, /* 5VSB Low Limit in DataSheet */ | |
100 | 0xB7, /* VBAT Low Limit in DataSheet */ | |
101 | 0xB9 /* VINR1 Low Limit in DataSheet */ | |
102 | }; | |
103 | static const u8 W83791D_REG_FAN[NUMBER_OF_FANIN] = { | |
104 | 0x28, /* FAN 1 Count in DataSheet */ | |
105 | 0x29, /* FAN 2 Count in DataSheet */ | |
106 | 0x2A, /* FAN 3 Count in DataSheet */ | |
107 | 0xBA, /* FAN 4 Count in DataSheet */ | |
108 | 0xBB, /* FAN 5 Count in DataSheet */ | |
109 | }; | |
110 | static const u8 W83791D_REG_FAN_MIN[NUMBER_OF_FANIN] = { | |
111 | 0x3B, /* FAN 1 Count Low Limit in DataSheet */ | |
112 | 0x3C, /* FAN 2 Count Low Limit in DataSheet */ | |
113 | 0x3D, /* FAN 3 Count Low Limit in DataSheet */ | |
114 | 0xBC, /* FAN 4 Count Low Limit in DataSheet */ | |
115 | 0xBD, /* FAN 5 Count Low Limit in DataSheet */ | |
116 | }; | |
117 | ||
118 | static const u8 W83791D_REG_FAN_CFG[2] = { | |
119 | 0x84, /* FAN 1/2 configuration */ | |
120 | 0x95, /* FAN 3 configuration */ | |
121 | }; | |
122 | ||
123 | static const u8 W83791D_REG_FAN_DIV[3] = { | |
124 | 0x47, /* contains FAN1 and FAN2 Divisor */ | |
125 | 0x4b, /* contains FAN3 Divisor */ | |
126 | 0x5C, /* contains FAN4 and FAN5 Divisor */ | |
127 | }; | |
128 | ||
129 | #define W83791D_REG_BANK 0x4E | |
130 | #define W83791D_REG_TEMP2_CONFIG 0xC2 | |
131 | #define W83791D_REG_TEMP3_CONFIG 0xCA | |
132 | ||
133 | static const u8 W83791D_REG_TEMP1[3] = { | |
134 | 0x27, /* TEMP 1 in DataSheet */ | |
135 | 0x39, /* TEMP 1 Over in DataSheet */ | |
136 | 0x3A, /* TEMP 1 Hyst in DataSheet */ | |
137 | }; | |
138 | ||
139 | static const u8 W83791D_REG_TEMP_ADD[2][6] = { | |
140 | {0xC0, /* TEMP 2 in DataSheet */ | |
141 | 0xC1, /* TEMP 2(0.5 deg) in DataSheet */ | |
142 | 0xC5, /* TEMP 2 Over High part in DataSheet */ | |
143 | 0xC6, /* TEMP 2 Over Low part in DataSheet */ | |
144 | 0xC3, /* TEMP 2 Thyst High part in DataSheet */ | |
145 | 0xC4}, /* TEMP 2 Thyst Low part in DataSheet */ | |
146 | {0xC8, /* TEMP 3 in DataSheet */ | |
147 | 0xC9, /* TEMP 3(0.5 deg) in DataSheet */ | |
148 | 0xCD, /* TEMP 3 Over High part in DataSheet */ | |
149 | 0xCE, /* TEMP 3 Over Low part in DataSheet */ | |
150 | 0xCB, /* TEMP 3 Thyst High part in DataSheet */ | |
151 | 0xCC} /* TEMP 3 Thyst Low part in DataSheet */ | |
152 | }; | |
153 | ||
154 | #define W83791D_REG_BEEP_CONFIG 0x4D | |
155 | ||
156 | static const u8 W83791D_REG_BEEP_CTRL[3] = { | |
157 | 0x56, /* BEEP Control Register 1 */ | |
158 | 0x57, /* BEEP Control Register 2 */ | |
159 | 0xA3, /* BEEP Control Register 3 */ | |
160 | }; | |
161 | ||
162 | #define W83791D_REG_CONFIG 0x40 | |
163 | #define W83791D_REG_VID_FANDIV 0x47 | |
164 | #define W83791D_REG_DID_VID4 0x49 | |
165 | #define W83791D_REG_WCHIPID 0x58 | |
166 | #define W83791D_REG_CHIPMAN 0x4F | |
167 | #define W83791D_REG_PIN 0x4B | |
168 | #define W83791D_REG_I2C_SUBADDR 0x4A | |
169 | ||
170 | #define W83791D_REG_ALARM1 0xA9 /* realtime status register1 */ | |
171 | #define W83791D_REG_ALARM2 0xAA /* realtime status register2 */ | |
172 | #define W83791D_REG_ALARM3 0xAB /* realtime status register3 */ | |
173 | ||
174 | #define W83791D_REG_VBAT 0x5D | |
175 | #define W83791D_REG_I2C_ADDR 0x48 | |
176 | ||
177 | /* The SMBus locks itself. The Winbond W83791D has a bank select register | |
178 | (index 0x4e), but the driver only accesses registers in bank 0. Since | |
179 | we don't switch banks, we don't need any special code to handle | |
180 | locking access between bank switches */ | |
181 | static inline int w83791d_read(struct i2c_client *client, u8 reg) | |
182 | { | |
183 | return i2c_smbus_read_byte_data(client, reg); | |
184 | } | |
185 | ||
186 | static inline int w83791d_write(struct i2c_client *client, u8 reg, u8 value) | |
187 | { | |
188 | return i2c_smbus_write_byte_data(client, reg, value); | |
189 | } | |
190 | ||
191 | /* The analog voltage inputs have 16mV LSB. Since the sysfs output is | |
192 | in mV as would be measured on the chip input pin, need to just | |
193 | multiply/divide by 16 to translate from/to register values. */ | |
194 | #define IN_TO_REG(val) (SENSORS_LIMIT((((val) + 8) / 16), 0, 255)) | |
195 | #define IN_FROM_REG(val) ((val) * 16) | |
196 | ||
197 | static u8 fan_to_reg(long rpm, int div) | |
198 | { | |
199 | if (rpm == 0) | |
200 | return 255; | |
201 | rpm = SENSORS_LIMIT(rpm, 1, 1000000); | |
202 | return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254); | |
203 | } | |
204 | ||
205 | #define FAN_FROM_REG(val,div) ((val) == 0 ? -1 : \ | |
206 | ((val) == 255 ? 0 : \ | |
207 | 1350000 / ((val) * (div)))) | |
208 | ||
209 | /* for temp1 which is 8-bit resolution, LSB = 1 degree Celsius */ | |
210 | #define TEMP1_FROM_REG(val) ((val) * 1000) | |
211 | #define TEMP1_TO_REG(val) ((val) <= -128000 ? -128 : \ | |
212 | (val) >= 127000 ? 127 : \ | |
213 | (val) < 0 ? ((val) - 500) / 1000 : \ | |
214 | ((val) + 500) / 1000) | |
215 | ||
216 | /* for temp2 and temp3 which are 9-bit resolution, LSB = 0.5 degree Celsius | |
217 | Assumes the top 8 bits are the integral amount and the bottom 8 bits | |
218 | are the fractional amount. Since we only have 0.5 degree resolution, | |
219 | the bottom 7 bits will always be zero */ | |
220 | #define TEMP23_FROM_REG(val) ((val) / 128 * 500) | |
221 | #define TEMP23_TO_REG(val) ((val) <= -128000 ? 0x8000 : \ | |
222 | (val) >= 127500 ? 0x7F80 : \ | |
223 | (val) < 0 ? ((val) - 250) / 500 * 128 : \ | |
224 | ((val) + 250) / 500 * 128) | |
225 | ||
226 | ||
227 | #define BEEP_MASK_TO_REG(val) ((val) & 0xffffff) | |
228 | #define BEEP_MASK_FROM_REG(val) ((val) & 0xffffff) | |
229 | ||
230 | #define DIV_FROM_REG(val) (1 << (val)) | |
231 | ||
232 | static u8 div_to_reg(int nr, long val) | |
233 | { | |
234 | int i; | |
235 | int max; | |
236 | ||
237 | /* first three fan's divisor max out at 8, rest max out at 128 */ | |
238 | max = (nr < 3) ? 8 : 128; | |
239 | val = SENSORS_LIMIT(val, 1, max) >> 1; | |
240 | for (i = 0; i < 7; i++) { | |
241 | if (val == 0) | |
242 | break; | |
243 | val >>= 1; | |
244 | } | |
245 | return (u8) i; | |
246 | } | |
247 | ||
248 | struct w83791d_data { | |
249 | struct i2c_client client; | |
1beeffe4 | 250 | struct device *hwmon_dev; |
9873964d CS |
251 | struct mutex update_lock; |
252 | ||
253 | char valid; /* !=0 if following fields are valid */ | |
254 | unsigned long last_updated; /* In jiffies */ | |
255 | ||
256 | /* array of 2 pointers to subclients */ | |
257 | struct i2c_client *lm75[2]; | |
258 | ||
259 | /* volts */ | |
260 | u8 in[NUMBER_OF_VIN]; /* Register value */ | |
261 | u8 in_max[NUMBER_OF_VIN]; /* Register value */ | |
262 | u8 in_min[NUMBER_OF_VIN]; /* Register value */ | |
263 | ||
264 | /* fans */ | |
265 | u8 fan[NUMBER_OF_FANIN]; /* Register value */ | |
266 | u8 fan_min[NUMBER_OF_FANIN]; /* Register value */ | |
267 | u8 fan_div[NUMBER_OF_FANIN]; /* Register encoding, shifted right */ | |
268 | ||
269 | /* Temperature sensors */ | |
270 | ||
271 | s8 temp1[3]; /* current, over, thyst */ | |
272 | s16 temp_add[2][3]; /* fixed point value. Top 8 bits are the | |
273 | integral part, bottom 8 bits are the | |
274 | fractional part. We only use the top | |
275 | 9 bits as the resolution is only | |
276 | to the 0.5 degree C... | |
277 | two sensors with three values | |
278 | (cur, over, hyst) */ | |
279 | ||
280 | /* Misc */ | |
281 | u32 alarms; /* realtime status register encoding,combined */ | |
282 | u8 beep_enable; /* Global beep enable */ | |
283 | u32 beep_mask; /* Mask off specific beeps */ | |
284 | u8 vid; /* Register encoding, combined */ | |
285 | u8 vrm; /* hwmon-vid */ | |
286 | }; | |
287 | ||
288 | static int w83791d_attach_adapter(struct i2c_adapter *adapter); | |
289 | static int w83791d_detect(struct i2c_adapter *adapter, int address, int kind); | |
290 | static int w83791d_detach_client(struct i2c_client *client); | |
291 | ||
292 | static int w83791d_read(struct i2c_client *client, u8 register); | |
293 | static int w83791d_write(struct i2c_client *client, u8 register, u8 value); | |
294 | static struct w83791d_data *w83791d_update_device(struct device *dev); | |
295 | ||
296 | #ifdef DEBUG | |
297 | static void w83791d_print_debug(struct w83791d_data *data, struct device *dev); | |
298 | #endif | |
299 | ||
300 | static void w83791d_init_client(struct i2c_client *client); | |
301 | ||
302 | static struct i2c_driver w83791d_driver = { | |
303 | .driver = { | |
304 | .name = "w83791d", | |
305 | }, | |
306 | .attach_adapter = w83791d_attach_adapter, | |
307 | .detach_client = w83791d_detach_client, | |
308 | }; | |
309 | ||
310 | /* following are the sysfs callback functions */ | |
311 | #define show_in_reg(reg) \ | |
312 | static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \ | |
313 | char *buf) \ | |
314 | { \ | |
315 | struct sensor_device_attribute *sensor_attr = \ | |
316 | to_sensor_dev_attr(attr); \ | |
317 | struct w83791d_data *data = w83791d_update_device(dev); \ | |
318 | int nr = sensor_attr->index; \ | |
319 | return sprintf(buf,"%d\n", IN_FROM_REG(data->reg[nr])); \ | |
320 | } | |
321 | ||
322 | show_in_reg(in); | |
323 | show_in_reg(in_min); | |
324 | show_in_reg(in_max); | |
325 | ||
326 | #define store_in_reg(REG, reg) \ | |
327 | static ssize_t store_in_##reg(struct device *dev, \ | |
328 | struct device_attribute *attr, \ | |
329 | const char *buf, size_t count) \ | |
330 | { \ | |
331 | struct sensor_device_attribute *sensor_attr = \ | |
332 | to_sensor_dev_attr(attr); \ | |
333 | struct i2c_client *client = to_i2c_client(dev); \ | |
334 | struct w83791d_data *data = i2c_get_clientdata(client); \ | |
335 | unsigned long val = simple_strtoul(buf, NULL, 10); \ | |
336 | int nr = sensor_attr->index; \ | |
337 | \ | |
338 | mutex_lock(&data->update_lock); \ | |
339 | data->in_##reg[nr] = IN_TO_REG(val); \ | |
340 | w83791d_write(client, W83791D_REG_IN_##REG[nr], data->in_##reg[nr]); \ | |
341 | mutex_unlock(&data->update_lock); \ | |
342 | \ | |
343 | return count; \ | |
344 | } | |
345 | store_in_reg(MIN, min); | |
346 | store_in_reg(MAX, max); | |
347 | ||
348 | static struct sensor_device_attribute sda_in_input[] = { | |
349 | SENSOR_ATTR(in0_input, S_IRUGO, show_in, NULL, 0), | |
350 | SENSOR_ATTR(in1_input, S_IRUGO, show_in, NULL, 1), | |
351 | SENSOR_ATTR(in2_input, S_IRUGO, show_in, NULL, 2), | |
352 | SENSOR_ATTR(in3_input, S_IRUGO, show_in, NULL, 3), | |
353 | SENSOR_ATTR(in4_input, S_IRUGO, show_in, NULL, 4), | |
354 | SENSOR_ATTR(in5_input, S_IRUGO, show_in, NULL, 5), | |
355 | SENSOR_ATTR(in6_input, S_IRUGO, show_in, NULL, 6), | |
356 | SENSOR_ATTR(in7_input, S_IRUGO, show_in, NULL, 7), | |
357 | SENSOR_ATTR(in8_input, S_IRUGO, show_in, NULL, 8), | |
358 | SENSOR_ATTR(in9_input, S_IRUGO, show_in, NULL, 9), | |
359 | }; | |
360 | ||
361 | static struct sensor_device_attribute sda_in_min[] = { | |
362 | SENSOR_ATTR(in0_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 0), | |
363 | SENSOR_ATTR(in1_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 1), | |
364 | SENSOR_ATTR(in2_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 2), | |
365 | SENSOR_ATTR(in3_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 3), | |
366 | SENSOR_ATTR(in4_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 4), | |
367 | SENSOR_ATTR(in5_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 5), | |
368 | SENSOR_ATTR(in6_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 6), | |
369 | SENSOR_ATTR(in7_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 7), | |
370 | SENSOR_ATTR(in8_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 8), | |
371 | SENSOR_ATTR(in9_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 9), | |
372 | }; | |
373 | ||
374 | static struct sensor_device_attribute sda_in_max[] = { | |
375 | SENSOR_ATTR(in0_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 0), | |
376 | SENSOR_ATTR(in1_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 1), | |
377 | SENSOR_ATTR(in2_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 2), | |
378 | SENSOR_ATTR(in3_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 3), | |
379 | SENSOR_ATTR(in4_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 4), | |
380 | SENSOR_ATTR(in5_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 5), | |
381 | SENSOR_ATTR(in6_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 6), | |
382 | SENSOR_ATTR(in7_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 7), | |
383 | SENSOR_ATTR(in8_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 8), | |
384 | SENSOR_ATTR(in9_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 9), | |
385 | }; | |
386 | ||
64383123 CS |
387 | |
388 | static ssize_t show_beep(struct device *dev, struct device_attribute *attr, | |
389 | char *buf) | |
390 | { | |
391 | struct sensor_device_attribute *sensor_attr = | |
392 | to_sensor_dev_attr(attr); | |
393 | struct w83791d_data *data = w83791d_update_device(dev); | |
394 | int bitnr = sensor_attr->index; | |
395 | ||
396 | return sprintf(buf, "%d\n", (data->beep_mask >> bitnr) & 1); | |
397 | } | |
398 | ||
399 | static ssize_t store_beep(struct device *dev, struct device_attribute *attr, | |
400 | const char *buf, size_t count) | |
401 | { | |
402 | struct sensor_device_attribute *sensor_attr = | |
403 | to_sensor_dev_attr(attr); | |
404 | struct i2c_client *client = to_i2c_client(dev); | |
405 | struct w83791d_data *data = i2c_get_clientdata(client); | |
406 | int bitnr = sensor_attr->index; | |
407 | int bytenr = bitnr / 8; | |
408 | long val = simple_strtol(buf, NULL, 10) ? 1 : 0; | |
409 | ||
410 | mutex_lock(&data->update_lock); | |
411 | ||
412 | data->beep_mask &= ~(0xff << (bytenr * 8)); | |
413 | data->beep_mask |= w83791d_read(client, W83791D_REG_BEEP_CTRL[bytenr]) | |
414 | << (bytenr * 8); | |
415 | ||
416 | data->beep_mask &= ~(1 << bitnr); | |
417 | data->beep_mask |= val << bitnr; | |
418 | ||
419 | w83791d_write(client, W83791D_REG_BEEP_CTRL[bytenr], | |
420 | (data->beep_mask >> (bytenr * 8)) & 0xff); | |
421 | ||
422 | mutex_unlock(&data->update_lock); | |
423 | ||
424 | return count; | |
425 | } | |
426 | ||
427 | static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, | |
428 | char *buf) | |
429 | { | |
430 | struct sensor_device_attribute *sensor_attr = | |
431 | to_sensor_dev_attr(attr); | |
432 | struct w83791d_data *data = w83791d_update_device(dev); | |
433 | int bitnr = sensor_attr->index; | |
434 | ||
435 | return sprintf(buf, "%d\n", (data->alarms >> bitnr) & 1); | |
436 | } | |
437 | ||
438 | /* Note: The bitmask for the beep enable/disable is different than | |
439 | the bitmask for the alarm. */ | |
440 | static struct sensor_device_attribute sda_in_beep[] = { | |
441 | SENSOR_ATTR(in0_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 0), | |
442 | SENSOR_ATTR(in1_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 13), | |
443 | SENSOR_ATTR(in2_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 2), | |
444 | SENSOR_ATTR(in3_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 3), | |
445 | SENSOR_ATTR(in4_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 8), | |
446 | SENSOR_ATTR(in5_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 9), | |
447 | SENSOR_ATTR(in6_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 10), | |
448 | SENSOR_ATTR(in7_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 16), | |
449 | SENSOR_ATTR(in8_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 17), | |
450 | SENSOR_ATTR(in9_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 14), | |
451 | }; | |
452 | ||
453 | static struct sensor_device_attribute sda_in_alarm[] = { | |
454 | SENSOR_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0), | |
455 | SENSOR_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1), | |
456 | SENSOR_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2), | |
457 | SENSOR_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3), | |
458 | SENSOR_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8), | |
459 | SENSOR_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 9), | |
460 | SENSOR_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 10), | |
461 | SENSOR_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 19), | |
462 | SENSOR_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 20), | |
463 | SENSOR_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, 14), | |
464 | }; | |
465 | ||
9873964d CS |
466 | #define show_fan_reg(reg) \ |
467 | static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \ | |
468 | char *buf) \ | |
469 | { \ | |
470 | struct sensor_device_attribute *sensor_attr = \ | |
471 | to_sensor_dev_attr(attr); \ | |
472 | struct w83791d_data *data = w83791d_update_device(dev); \ | |
473 | int nr = sensor_attr->index; \ | |
474 | return sprintf(buf,"%d\n", \ | |
475 | FAN_FROM_REG(data->reg[nr], DIV_FROM_REG(data->fan_div[nr]))); \ | |
476 | } | |
477 | ||
478 | show_fan_reg(fan); | |
479 | show_fan_reg(fan_min); | |
480 | ||
481 | static ssize_t store_fan_min(struct device *dev, struct device_attribute *attr, | |
482 | const char *buf, size_t count) | |
483 | { | |
484 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
485 | struct i2c_client *client = to_i2c_client(dev); | |
486 | struct w83791d_data *data = i2c_get_clientdata(client); | |
487 | unsigned long val = simple_strtoul(buf, NULL, 10); | |
488 | int nr = sensor_attr->index; | |
489 | ||
490 | mutex_lock(&data->update_lock); | |
491 | data->fan_min[nr] = fan_to_reg(val, DIV_FROM_REG(data->fan_div[nr])); | |
492 | w83791d_write(client, W83791D_REG_FAN_MIN[nr], data->fan_min[nr]); | |
493 | mutex_unlock(&data->update_lock); | |
494 | ||
495 | return count; | |
496 | } | |
497 | ||
498 | static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr, | |
499 | char *buf) | |
500 | { | |
501 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
502 | int nr = sensor_attr->index; | |
503 | struct w83791d_data *data = w83791d_update_device(dev); | |
504 | return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr])); | |
505 | } | |
506 | ||
507 | /* Note: we save and restore the fan minimum here, because its value is | |
508 | determined in part by the fan divisor. This follows the principle of | |
509 | least suprise; the user doesn't expect the fan minimum to change just | |
510 | because the divisor changed. */ | |
511 | static ssize_t store_fan_div(struct device *dev, struct device_attribute *attr, | |
512 | const char *buf, size_t count) | |
513 | { | |
514 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
515 | struct i2c_client *client = to_i2c_client(dev); | |
516 | struct w83791d_data *data = i2c_get_clientdata(client); | |
517 | int nr = sensor_attr->index; | |
518 | unsigned long min; | |
519 | u8 tmp_fan_div; | |
520 | u8 fan_div_reg; | |
521 | int indx = 0; | |
522 | u8 keep_mask = 0; | |
523 | u8 new_shift = 0; | |
524 | ||
525 | /* Save fan_min */ | |
526 | min = FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr])); | |
527 | ||
528 | mutex_lock(&data->update_lock); | |
529 | data->fan_div[nr] = div_to_reg(nr, simple_strtoul(buf, NULL, 10)); | |
530 | ||
531 | switch (nr) { | |
532 | case 0: | |
533 | indx = 0; | |
534 | keep_mask = 0xcf; | |
535 | new_shift = 4; | |
536 | break; | |
537 | case 1: | |
538 | indx = 0; | |
539 | keep_mask = 0x3f; | |
540 | new_shift = 6; | |
541 | break; | |
542 | case 2: | |
543 | indx = 1; | |
544 | keep_mask = 0x3f; | |
545 | new_shift = 6; | |
546 | break; | |
547 | case 3: | |
548 | indx = 2; | |
549 | keep_mask = 0xf8; | |
550 | new_shift = 0; | |
551 | break; | |
552 | case 4: | |
553 | indx = 2; | |
554 | keep_mask = 0x8f; | |
555 | new_shift = 4; | |
556 | break; | |
557 | #ifdef DEBUG | |
558 | default: | |
559 | dev_warn(dev, "store_fan_div: Unexpected nr seen: %d\n", nr); | |
560 | count = -EINVAL; | |
561 | goto err_exit; | |
562 | #endif | |
563 | } | |
564 | ||
565 | fan_div_reg = w83791d_read(client, W83791D_REG_FAN_DIV[indx]) | |
566 | & keep_mask; | |
567 | tmp_fan_div = (data->fan_div[nr] << new_shift) & ~keep_mask; | |
568 | ||
569 | w83791d_write(client, W83791D_REG_FAN_DIV[indx], | |
570 | fan_div_reg | tmp_fan_div); | |
571 | ||
572 | /* Restore fan_min */ | |
573 | data->fan_min[nr] = fan_to_reg(min, DIV_FROM_REG(data->fan_div[nr])); | |
574 | w83791d_write(client, W83791D_REG_FAN_MIN[nr], data->fan_min[nr]); | |
575 | ||
576 | #ifdef DEBUG | |
577 | err_exit: | |
578 | #endif | |
579 | mutex_unlock(&data->update_lock); | |
580 | ||
581 | return count; | |
582 | } | |
583 | ||
584 | static struct sensor_device_attribute sda_fan_input[] = { | |
585 | SENSOR_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0), | |
586 | SENSOR_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1), | |
587 | SENSOR_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2), | |
588 | SENSOR_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3), | |
589 | SENSOR_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 4), | |
590 | }; | |
591 | ||
592 | static struct sensor_device_attribute sda_fan_min[] = { | |
593 | SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, | |
594 | show_fan_min, store_fan_min, 0), | |
595 | SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO, | |
596 | show_fan_min, store_fan_min, 1), | |
597 | SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO, | |
598 | show_fan_min, store_fan_min, 2), | |
599 | SENSOR_ATTR(fan4_min, S_IWUSR | S_IRUGO, | |
600 | show_fan_min, store_fan_min, 3), | |
601 | SENSOR_ATTR(fan5_min, S_IWUSR | S_IRUGO, | |
602 | show_fan_min, store_fan_min, 4), | |
603 | }; | |
604 | ||
605 | static struct sensor_device_attribute sda_fan_div[] = { | |
606 | SENSOR_ATTR(fan1_div, S_IWUSR | S_IRUGO, | |
607 | show_fan_div, store_fan_div, 0), | |
608 | SENSOR_ATTR(fan2_div, S_IWUSR | S_IRUGO, | |
609 | show_fan_div, store_fan_div, 1), | |
610 | SENSOR_ATTR(fan3_div, S_IWUSR | S_IRUGO, | |
611 | show_fan_div, store_fan_div, 2), | |
612 | SENSOR_ATTR(fan4_div, S_IWUSR | S_IRUGO, | |
613 | show_fan_div, store_fan_div, 3), | |
614 | SENSOR_ATTR(fan5_div, S_IWUSR | S_IRUGO, | |
615 | show_fan_div, store_fan_div, 4), | |
616 | }; | |
617 | ||
64383123 CS |
618 | static struct sensor_device_attribute sda_fan_beep[] = { |
619 | SENSOR_ATTR(fan1_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 6), | |
620 | SENSOR_ATTR(fan2_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 7), | |
621 | SENSOR_ATTR(fan3_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 11), | |
622 | SENSOR_ATTR(fan4_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 21), | |
623 | SENSOR_ATTR(fan5_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 22), | |
624 | }; | |
625 | ||
626 | static struct sensor_device_attribute sda_fan_alarm[] = { | |
627 | SENSOR_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6), | |
628 | SENSOR_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7), | |
629 | SENSOR_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 11), | |
630 | SENSOR_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 21), | |
631 | SENSOR_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 22), | |
632 | }; | |
633 | ||
9873964d CS |
634 | /* read/write the temperature1, includes measured value and limits */ |
635 | static ssize_t show_temp1(struct device *dev, struct device_attribute *devattr, | |
636 | char *buf) | |
637 | { | |
638 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
639 | struct w83791d_data *data = w83791d_update_device(dev); | |
640 | return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp1[attr->index])); | |
641 | } | |
642 | ||
643 | static ssize_t store_temp1(struct device *dev, struct device_attribute *devattr, | |
644 | const char *buf, size_t count) | |
645 | { | |
646 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
647 | struct i2c_client *client = to_i2c_client(dev); | |
648 | struct w83791d_data *data = i2c_get_clientdata(client); | |
649 | long val = simple_strtol(buf, NULL, 10); | |
650 | int nr = attr->index; | |
651 | ||
652 | mutex_lock(&data->update_lock); | |
653 | data->temp1[nr] = TEMP1_TO_REG(val); | |
654 | w83791d_write(client, W83791D_REG_TEMP1[nr], data->temp1[nr]); | |
655 | mutex_unlock(&data->update_lock); | |
656 | return count; | |
657 | } | |
658 | ||
659 | /* read/write temperature2-3, includes measured value and limits */ | |
660 | static ssize_t show_temp23(struct device *dev, struct device_attribute *devattr, | |
661 | char *buf) | |
662 | { | |
663 | struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr); | |
664 | struct w83791d_data *data = w83791d_update_device(dev); | |
665 | int nr = attr->nr; | |
666 | int index = attr->index; | |
667 | return sprintf(buf, "%d\n", TEMP23_FROM_REG(data->temp_add[nr][index])); | |
668 | } | |
669 | ||
670 | static ssize_t store_temp23(struct device *dev, | |
671 | struct device_attribute *devattr, | |
672 | const char *buf, size_t count) | |
673 | { | |
674 | struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr); | |
675 | struct i2c_client *client = to_i2c_client(dev); | |
676 | struct w83791d_data *data = i2c_get_clientdata(client); | |
677 | long val = simple_strtol(buf, NULL, 10); | |
678 | int nr = attr->nr; | |
679 | int index = attr->index; | |
680 | ||
681 | mutex_lock(&data->update_lock); | |
682 | data->temp_add[nr][index] = TEMP23_TO_REG(val); | |
683 | w83791d_write(client, W83791D_REG_TEMP_ADD[nr][index * 2], | |
684 | data->temp_add[nr][index] >> 8); | |
685 | w83791d_write(client, W83791D_REG_TEMP_ADD[nr][index * 2 + 1], | |
686 | data->temp_add[nr][index] & 0x80); | |
687 | mutex_unlock(&data->update_lock); | |
688 | ||
689 | return count; | |
690 | } | |
691 | ||
692 | static struct sensor_device_attribute_2 sda_temp_input[] = { | |
693 | SENSOR_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0), | |
694 | SENSOR_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0), | |
695 | SENSOR_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0), | |
696 | }; | |
697 | ||
698 | static struct sensor_device_attribute_2 sda_temp_max[] = { | |
699 | SENSOR_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, | |
700 | show_temp1, store_temp1, 0, 1), | |
701 | SENSOR_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, | |
702 | show_temp23, store_temp23, 0, 1), | |
703 | SENSOR_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, | |
704 | show_temp23, store_temp23, 1, 1), | |
705 | }; | |
706 | ||
707 | static struct sensor_device_attribute_2 sda_temp_max_hyst[] = { | |
708 | SENSOR_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR, | |
709 | show_temp1, store_temp1, 0, 2), | |
710 | SENSOR_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR, | |
711 | show_temp23, store_temp23, 0, 2), | |
712 | SENSOR_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR, | |
713 | show_temp23, store_temp23, 1, 2), | |
714 | }; | |
715 | ||
64383123 CS |
716 | /* Note: The bitmask for the beep enable/disable is different than |
717 | the bitmask for the alarm. */ | |
718 | static struct sensor_device_attribute sda_temp_beep[] = { | |
719 | SENSOR_ATTR(temp1_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 4), | |
720 | SENSOR_ATTR(temp2_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 5), | |
721 | SENSOR_ATTR(temp3_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 1), | |
722 | }; | |
723 | ||
724 | static struct sensor_device_attribute sda_temp_alarm[] = { | |
725 | SENSOR_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4), | |
726 | SENSOR_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5), | |
727 | SENSOR_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13), | |
728 | }; | |
9873964d CS |
729 | |
730 | /* get reatime status of all sensors items: voltage, temp, fan */ | |
731 | static ssize_t show_alarms_reg(struct device *dev, | |
732 | struct device_attribute *attr, char *buf) | |
733 | { | |
734 | struct w83791d_data *data = w83791d_update_device(dev); | |
735 | return sprintf(buf, "%u\n", data->alarms); | |
736 | } | |
737 | ||
738 | static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL); | |
739 | ||
740 | /* Beep control */ | |
741 | ||
742 | #define GLOBAL_BEEP_ENABLE_SHIFT 15 | |
743 | #define GLOBAL_BEEP_ENABLE_MASK (1 << GLOBAL_BEEP_ENABLE_SHIFT) | |
744 | ||
745 | static ssize_t show_beep_enable(struct device *dev, | |
746 | struct device_attribute *attr, char *buf) | |
747 | { | |
748 | struct w83791d_data *data = w83791d_update_device(dev); | |
749 | return sprintf(buf, "%d\n", data->beep_enable); | |
750 | } | |
751 | ||
752 | static ssize_t show_beep_mask(struct device *dev, | |
753 | struct device_attribute *attr, char *buf) | |
754 | { | |
755 | struct w83791d_data *data = w83791d_update_device(dev); | |
756 | return sprintf(buf, "%d\n", BEEP_MASK_FROM_REG(data->beep_mask)); | |
757 | } | |
758 | ||
759 | ||
760 | static ssize_t store_beep_mask(struct device *dev, | |
761 | struct device_attribute *attr, | |
762 | const char *buf, size_t count) | |
763 | { | |
764 | struct i2c_client *client = to_i2c_client(dev); | |
765 | struct w83791d_data *data = i2c_get_clientdata(client); | |
766 | long val = simple_strtol(buf, NULL, 10); | |
767 | int i; | |
768 | ||
769 | mutex_lock(&data->update_lock); | |
770 | ||
771 | /* The beep_enable state overrides any enabling request from | |
772 | the masks */ | |
773 | data->beep_mask = BEEP_MASK_TO_REG(val) & ~GLOBAL_BEEP_ENABLE_MASK; | |
774 | data->beep_mask |= (data->beep_enable << GLOBAL_BEEP_ENABLE_SHIFT); | |
775 | ||
776 | val = data->beep_mask; | |
777 | ||
778 | for (i = 0; i < 3; i++) { | |
779 | w83791d_write(client, W83791D_REG_BEEP_CTRL[i], (val & 0xff)); | |
780 | val >>= 8; | |
781 | } | |
782 | ||
783 | mutex_unlock(&data->update_lock); | |
784 | ||
785 | return count; | |
786 | } | |
787 | ||
788 | static ssize_t store_beep_enable(struct device *dev, | |
789 | struct device_attribute *attr, | |
790 | const char *buf, size_t count) | |
791 | { | |
792 | struct i2c_client *client = to_i2c_client(dev); | |
793 | struct w83791d_data *data = i2c_get_clientdata(client); | |
794 | long val = simple_strtol(buf, NULL, 10); | |
795 | ||
796 | mutex_lock(&data->update_lock); | |
797 | ||
798 | data->beep_enable = val ? 1 : 0; | |
799 | ||
800 | /* Keep the full mask value in sync with the current enable */ | |
801 | data->beep_mask &= ~GLOBAL_BEEP_ENABLE_MASK; | |
802 | data->beep_mask |= (data->beep_enable << GLOBAL_BEEP_ENABLE_SHIFT); | |
803 | ||
804 | /* The global control is in the second beep control register | |
805 | so only need to update that register */ | |
806 | val = (data->beep_mask >> 8) & 0xff; | |
807 | ||
808 | w83791d_write(client, W83791D_REG_BEEP_CTRL[1], val); | |
809 | ||
810 | mutex_unlock(&data->update_lock); | |
811 | ||
812 | return count; | |
813 | } | |
814 | ||
815 | static struct sensor_device_attribute sda_beep_ctrl[] = { | |
816 | SENSOR_ATTR(beep_enable, S_IRUGO | S_IWUSR, | |
817 | show_beep_enable, store_beep_enable, 0), | |
818 | SENSOR_ATTR(beep_mask, S_IRUGO | S_IWUSR, | |
819 | show_beep_mask, store_beep_mask, 1) | |
820 | }; | |
821 | ||
822 | /* cpu voltage regulation information */ | |
823 | static ssize_t show_vid_reg(struct device *dev, | |
824 | struct device_attribute *attr, char *buf) | |
825 | { | |
826 | struct w83791d_data *data = w83791d_update_device(dev); | |
827 | return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm)); | |
828 | } | |
829 | ||
830 | static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL); | |
831 | ||
832 | static ssize_t show_vrm_reg(struct device *dev, | |
833 | struct device_attribute *attr, char *buf) | |
834 | { | |
835 | struct w83791d_data *data = w83791d_update_device(dev); | |
836 | return sprintf(buf, "%d\n", data->vrm); | |
837 | } | |
838 | ||
839 | static ssize_t store_vrm_reg(struct device *dev, | |
840 | struct device_attribute *attr, | |
841 | const char *buf, size_t count) | |
842 | { | |
843 | struct i2c_client *client = to_i2c_client(dev); | |
844 | struct w83791d_data *data = i2c_get_clientdata(client); | |
845 | unsigned long val = simple_strtoul(buf, NULL, 10); | |
846 | ||
847 | /* No lock needed as vrm is internal to the driver | |
848 | (not read from a chip register) and so is not | |
849 | updated in w83791d_update_device() */ | |
850 | data->vrm = val; | |
851 | ||
852 | return count; | |
853 | } | |
854 | ||
855 | static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg); | |
856 | ||
34fc921a JC |
857 | #define IN_UNIT_ATTRS(X) \ |
858 | &sda_in_input[X].dev_attr.attr, \ | |
859 | &sda_in_min[X].dev_attr.attr, \ | |
64383123 CS |
860 | &sda_in_max[X].dev_attr.attr, \ |
861 | &sda_in_beep[X].dev_attr.attr, \ | |
862 | &sda_in_alarm[X].dev_attr.attr | |
34fc921a JC |
863 | |
864 | #define FAN_UNIT_ATTRS(X) \ | |
865 | &sda_fan_input[X].dev_attr.attr, \ | |
866 | &sda_fan_min[X].dev_attr.attr, \ | |
64383123 CS |
867 | &sda_fan_div[X].dev_attr.attr, \ |
868 | &sda_fan_beep[X].dev_attr.attr, \ | |
869 | &sda_fan_alarm[X].dev_attr.attr | |
34fc921a JC |
870 | |
871 | #define TEMP_UNIT_ATTRS(X) \ | |
872 | &sda_temp_input[X].dev_attr.attr, \ | |
873 | &sda_temp_max[X].dev_attr.attr, \ | |
64383123 CS |
874 | &sda_temp_max_hyst[X].dev_attr.attr, \ |
875 | &sda_temp_beep[X].dev_attr.attr, \ | |
876 | &sda_temp_alarm[X].dev_attr.attr | |
34fc921a JC |
877 | |
878 | static struct attribute *w83791d_attributes[] = { | |
879 | IN_UNIT_ATTRS(0), | |
880 | IN_UNIT_ATTRS(1), | |
881 | IN_UNIT_ATTRS(2), | |
882 | IN_UNIT_ATTRS(3), | |
883 | IN_UNIT_ATTRS(4), | |
884 | IN_UNIT_ATTRS(5), | |
885 | IN_UNIT_ATTRS(6), | |
886 | IN_UNIT_ATTRS(7), | |
887 | IN_UNIT_ATTRS(8), | |
888 | IN_UNIT_ATTRS(9), | |
889 | FAN_UNIT_ATTRS(0), | |
890 | FAN_UNIT_ATTRS(1), | |
891 | FAN_UNIT_ATTRS(2), | |
892 | FAN_UNIT_ATTRS(3), | |
893 | FAN_UNIT_ATTRS(4), | |
894 | TEMP_UNIT_ATTRS(0), | |
895 | TEMP_UNIT_ATTRS(1), | |
896 | TEMP_UNIT_ATTRS(2), | |
897 | &dev_attr_alarms.attr, | |
898 | &sda_beep_ctrl[0].dev_attr.attr, | |
899 | &sda_beep_ctrl[1].dev_attr.attr, | |
900 | &dev_attr_cpu0_vid.attr, | |
901 | &dev_attr_vrm.attr, | |
902 | NULL | |
903 | }; | |
904 | ||
905 | static const struct attribute_group w83791d_group = { | |
906 | .attrs = w83791d_attributes, | |
907 | }; | |
908 | ||
9873964d CS |
909 | /* This function is called when: |
910 | * w83791d_driver is inserted (when this module is loaded), for each | |
911 | available adapter | |
912 | * when a new adapter is inserted (and w83791d_driver is still present) */ | |
913 | static int w83791d_attach_adapter(struct i2c_adapter *adapter) | |
914 | { | |
915 | if (!(adapter->class & I2C_CLASS_HWMON)) | |
916 | return 0; | |
917 | return i2c_probe(adapter, &addr_data, w83791d_detect); | |
918 | } | |
919 | ||
920 | ||
921 | static int w83791d_create_subclient(struct i2c_adapter *adapter, | |
922 | struct i2c_client *client, int addr, | |
923 | struct i2c_client **sub_cli) | |
924 | { | |
925 | int err; | |
926 | struct i2c_client *sub_client; | |
927 | ||
928 | (*sub_cli) = sub_client = | |
929 | kzalloc(sizeof(struct i2c_client), GFP_KERNEL); | |
930 | if (!(sub_client)) { | |
931 | return -ENOMEM; | |
932 | } | |
933 | sub_client->addr = 0x48 + addr; | |
934 | i2c_set_clientdata(sub_client, NULL); | |
935 | sub_client->adapter = adapter; | |
936 | sub_client->driver = &w83791d_driver; | |
937 | strlcpy(sub_client->name, "w83791d subclient", I2C_NAME_SIZE); | |
938 | if ((err = i2c_attach_client(sub_client))) { | |
939 | dev_err(&client->dev, "subclient registration " | |
940 | "at address 0x%x failed\n", sub_client->addr); | |
941 | kfree(sub_client); | |
942 | return err; | |
943 | } | |
944 | return 0; | |
945 | } | |
946 | ||
947 | ||
948 | static int w83791d_detect_subclients(struct i2c_adapter *adapter, int address, | |
949 | int kind, struct i2c_client *client) | |
950 | { | |
951 | struct w83791d_data *data = i2c_get_clientdata(client); | |
952 | int i, id, err; | |
953 | u8 val; | |
954 | ||
955 | id = i2c_adapter_id(adapter); | |
956 | if (force_subclients[0] == id && force_subclients[1] == address) { | |
957 | for (i = 2; i <= 3; i++) { | |
958 | if (force_subclients[i] < 0x48 || | |
959 | force_subclients[i] > 0x4f) { | |
960 | dev_err(&client->dev, | |
961 | "invalid subclient " | |
962 | "address %d; must be 0x48-0x4f\n", | |
963 | force_subclients[i]); | |
964 | err = -ENODEV; | |
965 | goto error_sc_0; | |
966 | } | |
967 | } | |
968 | w83791d_write(client, W83791D_REG_I2C_SUBADDR, | |
969 | (force_subclients[2] & 0x07) | | |
970 | ((force_subclients[3] & 0x07) << 4)); | |
971 | } | |
972 | ||
973 | val = w83791d_read(client, W83791D_REG_I2C_SUBADDR); | |
974 | if (!(val & 0x08)) { | |
975 | err = w83791d_create_subclient(adapter, client, | |
976 | val & 0x7, &data->lm75[0]); | |
977 | if (err < 0) | |
978 | goto error_sc_0; | |
979 | } | |
980 | if (!(val & 0x80)) { | |
981 | if ((data->lm75[0] != NULL) && | |
982 | ((val & 0x7) == ((val >> 4) & 0x7))) { | |
983 | dev_err(&client->dev, | |
984 | "duplicate addresses 0x%x, " | |
985 | "use force_subclient\n", | |
986 | data->lm75[0]->addr); | |
987 | err = -ENODEV; | |
988 | goto error_sc_1; | |
989 | } | |
990 | err = w83791d_create_subclient(adapter, client, | |
991 | (val >> 4) & 0x7, &data->lm75[1]); | |
992 | if (err < 0) | |
993 | goto error_sc_1; | |
994 | } | |
995 | ||
996 | return 0; | |
997 | ||
998 | /* Undo inits in case of errors */ | |
999 | ||
1000 | error_sc_1: | |
1001 | if (data->lm75[0] != NULL) { | |
1002 | i2c_detach_client(data->lm75[0]); | |
1003 | kfree(data->lm75[0]); | |
1004 | } | |
1005 | error_sc_0: | |
1006 | return err; | |
1007 | } | |
1008 | ||
1009 | ||
1010 | static int w83791d_detect(struct i2c_adapter *adapter, int address, int kind) | |
1011 | { | |
1012 | struct i2c_client *client; | |
1013 | struct device *dev; | |
1014 | struct w83791d_data *data; | |
1015 | int i, val1, val2; | |
1016 | int err = 0; | |
1017 | const char *client_name = ""; | |
1018 | ||
1019 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { | |
1020 | goto error0; | |
1021 | } | |
1022 | ||
1023 | /* OK. For now, we presume we have a valid client. We now create the | |
1024 | client structure, even though we cannot fill it completely yet. | |
1025 | But it allows us to access w83791d_{read,write}_value. */ | |
1026 | if (!(data = kzalloc(sizeof(struct w83791d_data), GFP_KERNEL))) { | |
1027 | err = -ENOMEM; | |
1028 | goto error0; | |
1029 | } | |
1030 | ||
1031 | client = &data->client; | |
1032 | dev = &client->dev; | |
1033 | i2c_set_clientdata(client, data); | |
1034 | client->addr = address; | |
1035 | client->adapter = adapter; | |
1036 | client->driver = &w83791d_driver; | |
1037 | mutex_init(&data->update_lock); | |
1038 | ||
1039 | /* Now, we do the remaining detection. */ | |
1040 | ||
1041 | /* The w83791d may be stuck in some other bank than bank 0. This may | |
1042 | make reading other information impossible. Specify a force=... | |
1043 | parameter, and the Winbond will be reset to the right bank. */ | |
1044 | if (kind < 0) { | |
1045 | if (w83791d_read(client, W83791D_REG_CONFIG) & 0x80) { | |
1046 | dev_dbg(dev, "Detection failed at step 1\n"); | |
1047 | goto error1; | |
1048 | } | |
1049 | val1 = w83791d_read(client, W83791D_REG_BANK); | |
1050 | val2 = w83791d_read(client, W83791D_REG_CHIPMAN); | |
1051 | /* Check for Winbond ID if in bank 0 */ | |
1052 | if (!(val1 & 0x07)) { | |
1053 | /* yes it is Bank0 */ | |
1054 | if (((!(val1 & 0x80)) && (val2 != 0xa3)) || | |
1055 | ((val1 & 0x80) && (val2 != 0x5c))) { | |
1056 | dev_dbg(dev, "Detection failed at step 2\n"); | |
1057 | goto error1; | |
1058 | } | |
1059 | } | |
1060 | /* If Winbond chip, address of chip and W83791D_REG_I2C_ADDR | |
1061 | should match */ | |
1062 | if (w83791d_read(client, W83791D_REG_I2C_ADDR) != address) { | |
1063 | dev_dbg(dev, "Detection failed at step 3\n"); | |
1064 | goto error1; | |
1065 | } | |
1066 | } | |
1067 | ||
1068 | /* We either have a force parameter or we have reason to | |
1069 | believe it is a Winbond chip. Either way, we want bank 0 and | |
1070 | Vendor ID high byte */ | |
1071 | val1 = w83791d_read(client, W83791D_REG_BANK) & 0x78; | |
1072 | w83791d_write(client, W83791D_REG_BANK, val1 | 0x80); | |
1073 | ||
1074 | /* Verify it is a Winbond w83791d */ | |
1075 | if (kind <= 0) { | |
1076 | /* get vendor ID */ | |
1077 | val2 = w83791d_read(client, W83791D_REG_CHIPMAN); | |
1078 | if (val2 != 0x5c) { /* the vendor is NOT Winbond */ | |
1079 | dev_dbg(dev, "Detection failed at step 4\n"); | |
1080 | goto error1; | |
1081 | } | |
1082 | val1 = w83791d_read(client, W83791D_REG_WCHIPID); | |
1083 | if (val1 == 0x71) { | |
1084 | kind = w83791d; | |
1085 | } else { | |
1086 | if (kind == 0) | |
1087 | dev_warn(dev, | |
1088 | "w83791d: Ignoring 'force' parameter " | |
1089 | "for unknown chip at adapter %d, " | |
1090 | "address 0x%02x\n", | |
1091 | i2c_adapter_id(adapter), address); | |
1092 | goto error1; | |
1093 | } | |
1094 | } | |
1095 | ||
1096 | if (kind == w83791d) { | |
1097 | client_name = "w83791d"; | |
1098 | } else { | |
1099 | dev_err(dev, "w83791d: Internal error: unknown kind (%d)?!?", | |
1100 | kind); | |
1101 | goto error1; | |
1102 | } | |
1103 | ||
1104 | #ifdef DEBUG | |
1105 | val1 = w83791d_read(client, W83791D_REG_DID_VID4); | |
1106 | dev_dbg(dev, "Device ID version: %d.%d (0x%02x)\n", | |
1107 | (val1 >> 5) & 0x07, (val1 >> 1) & 0x0f, val1); | |
1108 | #endif | |
1109 | ||
1110 | /* Fill in the remaining client fields and put into the global list */ | |
1111 | strlcpy(client->name, client_name, I2C_NAME_SIZE); | |
1112 | ||
1113 | /* Tell the I2C layer a new client has arrived */ | |
1114 | if ((err = i2c_attach_client(client))) | |
1115 | goto error1; | |
1116 | ||
1117 | if ((err = w83791d_detect_subclients(adapter, address, kind, client))) | |
1118 | goto error2; | |
1119 | ||
1120 | /* Initialize the chip */ | |
1121 | w83791d_init_client(client); | |
1122 | ||
1123 | /* If the fan_div is changed, make sure there is a rational | |
1124 | fan_min in place */ | |
1125 | for (i = 0; i < NUMBER_OF_FANIN; i++) { | |
1126 | data->fan_min[i] = w83791d_read(client, W83791D_REG_FAN_MIN[i]); | |
1127 | } | |
1128 | ||
1129 | /* Register sysfs hooks */ | |
34fc921a JC |
1130 | if ((err = sysfs_create_group(&client->dev.kobj, &w83791d_group))) |
1131 | goto error3; | |
1132 | ||
1133 | /* Everything is ready, now register the working device */ | |
1beeffe4 TJ |
1134 | data->hwmon_dev = hwmon_device_register(dev); |
1135 | if (IS_ERR(data->hwmon_dev)) { | |
1136 | err = PTR_ERR(data->hwmon_dev); | |
34fc921a | 1137 | goto error4; |
9873964d CS |
1138 | } |
1139 | ||
9873964d CS |
1140 | return 0; |
1141 | ||
34fc921a JC |
1142 | error4: |
1143 | sysfs_remove_group(&client->dev.kobj, &w83791d_group); | |
9873964d CS |
1144 | error3: |
1145 | if (data->lm75[0] != NULL) { | |
1146 | i2c_detach_client(data->lm75[0]); | |
1147 | kfree(data->lm75[0]); | |
1148 | } | |
1149 | if (data->lm75[1] != NULL) { | |
1150 | i2c_detach_client(data->lm75[1]); | |
1151 | kfree(data->lm75[1]); | |
1152 | } | |
1153 | error2: | |
1154 | i2c_detach_client(client); | |
1155 | error1: | |
1156 | kfree(data); | |
1157 | error0: | |
1158 | return err; | |
1159 | } | |
1160 | ||
1161 | static int w83791d_detach_client(struct i2c_client *client) | |
1162 | { | |
1163 | struct w83791d_data *data = i2c_get_clientdata(client); | |
1164 | int err; | |
1165 | ||
1166 | /* main client */ | |
34fc921a | 1167 | if (data) { |
1beeffe4 | 1168 | hwmon_device_unregister(data->hwmon_dev); |
34fc921a JC |
1169 | sysfs_remove_group(&client->dev.kobj, &w83791d_group); |
1170 | } | |
9873964d CS |
1171 | |
1172 | if ((err = i2c_detach_client(client))) | |
1173 | return err; | |
1174 | ||
1175 | /* main client */ | |
1176 | if (data) | |
1177 | kfree(data); | |
1178 | /* subclient */ | |
1179 | else | |
1180 | kfree(client); | |
1181 | ||
1182 | return 0; | |
1183 | } | |
1184 | ||
1185 | static void w83791d_init_client(struct i2c_client *client) | |
1186 | { | |
1187 | struct w83791d_data *data = i2c_get_clientdata(client); | |
1188 | u8 tmp; | |
1189 | u8 old_beep; | |
1190 | ||
1191 | /* The difference between reset and init is that reset | |
1192 | does a hard reset of the chip via index 0x40, bit 7, | |
1193 | but init simply forces certain registers to have "sane" | |
1194 | values. The hope is that the BIOS has done the right | |
1195 | thing (which is why the default is reset=0, init=0), | |
1196 | but if not, reset is the hard hammer and init | |
1197 | is the soft mallet both of which are trying to whack | |
1198 | things into place... | |
1199 | NOTE: The data sheet makes a distinction between | |
1200 | "power on defaults" and "reset by MR". As far as I can tell, | |
1201 | the hard reset puts everything into a power-on state so I'm | |
1202 | not sure what "reset by MR" means or how it can happen. | |
1203 | */ | |
1204 | if (reset || init) { | |
1205 | /* keep some BIOS settings when we... */ | |
1206 | old_beep = w83791d_read(client, W83791D_REG_BEEP_CONFIG); | |
1207 | ||
1208 | if (reset) { | |
1209 | /* ... reset the chip and ... */ | |
1210 | w83791d_write(client, W83791D_REG_CONFIG, 0x80); | |
1211 | } | |
1212 | ||
1213 | /* ... disable power-on abnormal beep */ | |
1214 | w83791d_write(client, W83791D_REG_BEEP_CONFIG, old_beep | 0x80); | |
1215 | ||
1216 | /* disable the global beep (not done by hard reset) */ | |
1217 | tmp = w83791d_read(client, W83791D_REG_BEEP_CTRL[1]); | |
1218 | w83791d_write(client, W83791D_REG_BEEP_CTRL[1], tmp & 0xef); | |
1219 | ||
1220 | if (init) { | |
1221 | /* Make sure monitoring is turned on for add-ons */ | |
1222 | tmp = w83791d_read(client, W83791D_REG_TEMP2_CONFIG); | |
1223 | if (tmp & 1) { | |
1224 | w83791d_write(client, W83791D_REG_TEMP2_CONFIG, | |
1225 | tmp & 0xfe); | |
1226 | } | |
1227 | ||
1228 | tmp = w83791d_read(client, W83791D_REG_TEMP3_CONFIG); | |
1229 | if (tmp & 1) { | |
1230 | w83791d_write(client, W83791D_REG_TEMP3_CONFIG, | |
1231 | tmp & 0xfe); | |
1232 | } | |
1233 | ||
1234 | /* Start monitoring */ | |
1235 | tmp = w83791d_read(client, W83791D_REG_CONFIG) & 0xf7; | |
1236 | w83791d_write(client, W83791D_REG_CONFIG, tmp | 0x01); | |
1237 | } | |
1238 | } | |
1239 | ||
1240 | data->vrm = vid_which_vrm(); | |
1241 | } | |
1242 | ||
1243 | static struct w83791d_data *w83791d_update_device(struct device *dev) | |
1244 | { | |
1245 | struct i2c_client *client = to_i2c_client(dev); | |
1246 | struct w83791d_data *data = i2c_get_clientdata(client); | |
1247 | int i, j; | |
1248 | u8 reg_array_tmp[3]; | |
1249 | ||
1250 | mutex_lock(&data->update_lock); | |
1251 | ||
1252 | if (time_after(jiffies, data->last_updated + (HZ * 3)) | |
1253 | || !data->valid) { | |
1254 | dev_dbg(dev, "Starting w83791d device update\n"); | |
1255 | ||
1256 | /* Update the voltages measured value and limits */ | |
1257 | for (i = 0; i < NUMBER_OF_VIN; i++) { | |
1258 | data->in[i] = w83791d_read(client, | |
1259 | W83791D_REG_IN[i]); | |
1260 | data->in_max[i] = w83791d_read(client, | |
1261 | W83791D_REG_IN_MAX[i]); | |
1262 | data->in_min[i] = w83791d_read(client, | |
1263 | W83791D_REG_IN_MIN[i]); | |
1264 | } | |
1265 | ||
1266 | /* Update the fan counts and limits */ | |
1267 | for (i = 0; i < NUMBER_OF_FANIN; i++) { | |
1268 | /* Update the Fan measured value and limits */ | |
1269 | data->fan[i] = w83791d_read(client, | |
1270 | W83791D_REG_FAN[i]); | |
1271 | data->fan_min[i] = w83791d_read(client, | |
1272 | W83791D_REG_FAN_MIN[i]); | |
1273 | } | |
1274 | ||
1275 | /* Update the fan divisor */ | |
1276 | for (i = 0; i < 3; i++) { | |
1277 | reg_array_tmp[i] = w83791d_read(client, | |
1278 | W83791D_REG_FAN_DIV[i]); | |
1279 | } | |
1280 | data->fan_div[0] = (reg_array_tmp[0] >> 4) & 0x03; | |
1281 | data->fan_div[1] = (reg_array_tmp[0] >> 6) & 0x03; | |
1282 | data->fan_div[2] = (reg_array_tmp[1] >> 6) & 0x03; | |
1283 | data->fan_div[3] = reg_array_tmp[2] & 0x07; | |
1284 | data->fan_div[4] = (reg_array_tmp[2] >> 4) & 0x07; | |
1285 | ||
1286 | /* Update the first temperature sensor */ | |
1287 | for (i = 0; i < 3; i++) { | |
1288 | data->temp1[i] = w83791d_read(client, | |
1289 | W83791D_REG_TEMP1[i]); | |
1290 | } | |
1291 | ||
1292 | /* Update the rest of the temperature sensors */ | |
1293 | for (i = 0; i < 2; i++) { | |
1294 | for (j = 0; j < 3; j++) { | |
1295 | data->temp_add[i][j] = | |
1296 | (w83791d_read(client, | |
1297 | W83791D_REG_TEMP_ADD[i][j * 2]) << 8) | | |
1298 | w83791d_read(client, | |
1299 | W83791D_REG_TEMP_ADD[i][j * 2 + 1]); | |
1300 | } | |
1301 | } | |
1302 | ||
1303 | /* Update the realtime status */ | |
1304 | data->alarms = | |
1305 | w83791d_read(client, W83791D_REG_ALARM1) + | |
1306 | (w83791d_read(client, W83791D_REG_ALARM2) << 8) + | |
1307 | (w83791d_read(client, W83791D_REG_ALARM3) << 16); | |
1308 | ||
1309 | /* Update the beep configuration information */ | |
1310 | data->beep_mask = | |
1311 | w83791d_read(client, W83791D_REG_BEEP_CTRL[0]) + | |
1312 | (w83791d_read(client, W83791D_REG_BEEP_CTRL[1]) << 8) + | |
1313 | (w83791d_read(client, W83791D_REG_BEEP_CTRL[2]) << 16); | |
1314 | ||
125751cb | 1315 | /* Extract global beep enable flag */ |
9873964d CS |
1316 | data->beep_enable = |
1317 | (data->beep_mask >> GLOBAL_BEEP_ENABLE_SHIFT) & 0x01; | |
1318 | ||
1319 | /* Update the cpu voltage information */ | |
1320 | i = w83791d_read(client, W83791D_REG_VID_FANDIV); | |
1321 | data->vid = i & 0x0f; | |
1322 | data->vid |= (w83791d_read(client, W83791D_REG_DID_VID4) & 0x01) | |
1323 | << 4; | |
1324 | ||
1325 | data->last_updated = jiffies; | |
1326 | data->valid = 1; | |
1327 | } | |
1328 | ||
1329 | mutex_unlock(&data->update_lock); | |
1330 | ||
1331 | #ifdef DEBUG | |
1332 | w83791d_print_debug(data, dev); | |
1333 | #endif | |
1334 | ||
1335 | return data; | |
1336 | } | |
1337 | ||
1338 | #ifdef DEBUG | |
1339 | static void w83791d_print_debug(struct w83791d_data *data, struct device *dev) | |
1340 | { | |
1341 | int i = 0, j = 0; | |
1342 | ||
1343 | dev_dbg(dev, "======Start of w83791d debug values======\n"); | |
1344 | dev_dbg(dev, "%d set of Voltages: ===>\n", NUMBER_OF_VIN); | |
1345 | for (i = 0; i < NUMBER_OF_VIN; i++) { | |
1346 | dev_dbg(dev, "vin[%d] is: 0x%02x\n", i, data->in[i]); | |
1347 | dev_dbg(dev, "vin[%d] min is: 0x%02x\n", i, data->in_min[i]); | |
1348 | dev_dbg(dev, "vin[%d] max is: 0x%02x\n", i, data->in_max[i]); | |
1349 | } | |
1350 | dev_dbg(dev, "%d set of Fan Counts/Divisors: ===>\n", NUMBER_OF_FANIN); | |
1351 | for (i = 0; i < NUMBER_OF_FANIN; i++) { | |
1352 | dev_dbg(dev, "fan[%d] is: 0x%02x\n", i, data->fan[i]); | |
1353 | dev_dbg(dev, "fan[%d] min is: 0x%02x\n", i, data->fan_min[i]); | |
1354 | dev_dbg(dev, "fan_div[%d] is: 0x%02x\n", i, data->fan_div[i]); | |
1355 | } | |
1356 | ||
1357 | /* temperature math is signed, but only print out the | |
1358 | bits that matter */ | |
1359 | dev_dbg(dev, "%d set of Temperatures: ===>\n", NUMBER_OF_TEMPIN); | |
1360 | for (i = 0; i < 3; i++) { | |
1361 | dev_dbg(dev, "temp1[%d] is: 0x%02x\n", i, (u8) data->temp1[i]); | |
1362 | } | |
1363 | for (i = 0; i < 2; i++) { | |
1364 | for (j = 0; j < 3; j++) { | |
1365 | dev_dbg(dev, "temp_add[%d][%d] is: 0x%04x\n", i, j, | |
1366 | (u16) data->temp_add[i][j]); | |
1367 | } | |
1368 | } | |
1369 | ||
1370 | dev_dbg(dev, "Misc Information: ===>\n"); | |
1371 | dev_dbg(dev, "alarm is: 0x%08x\n", data->alarms); | |
1372 | dev_dbg(dev, "beep_mask is: 0x%08x\n", data->beep_mask); | |
1373 | dev_dbg(dev, "beep_enable is: %d\n", data->beep_enable); | |
1374 | dev_dbg(dev, "vid is: 0x%02x\n", data->vid); | |
1375 | dev_dbg(dev, "vrm is: 0x%02x\n", data->vrm); | |
1376 | dev_dbg(dev, "=======End of w83791d debug values========\n"); | |
1377 | dev_dbg(dev, "\n"); | |
1378 | } | |
1379 | #endif | |
1380 | ||
1381 | static int __init sensors_w83791d_init(void) | |
1382 | { | |
1383 | return i2c_add_driver(&w83791d_driver); | |
1384 | } | |
1385 | ||
1386 | static void __exit sensors_w83791d_exit(void) | |
1387 | { | |
1388 | i2c_del_driver(&w83791d_driver); | |
1389 | } | |
1390 | ||
1391 | MODULE_AUTHOR("Charles Spirakis <bezaur@gmail.com>"); | |
1392 | MODULE_DESCRIPTION("W83791D driver"); | |
1393 | MODULE_LICENSE("GPL"); | |
1394 | ||
1395 | module_init(sensors_w83791d_init); | |
1396 | module_exit(sensors_w83791d_exit); |