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1da177e4 LT |
1 | /* |
2 | gl520sm.c - Part of lm_sensors, Linux kernel modules for hardware | |
3 | monitoring | |
4 | Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl>, | |
96de0e25 | 5 | Kyösti Mälkki <kmalkki@cc.hut.fi> |
1da177e4 LT |
6 | Copyright (c) 2005 Maarten Deprez <maartendeprez@users.sourceforge.net> |
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 | */ | |
23 | ||
24 | #include <linux/module.h> | |
25 | #include <linux/init.h> | |
26 | #include <linux/slab.h> | |
0cacdf29 | 27 | #include <linux/jiffies.h> |
1da177e4 | 28 | #include <linux/i2c.h> |
943b0830 | 29 | #include <linux/hwmon.h> |
86d47f12 | 30 | #include <linux/hwmon-sysfs.h> |
303760b4 | 31 | #include <linux/hwmon-vid.h> |
943b0830 | 32 | #include <linux/err.h> |
9a61bf63 | 33 | #include <linux/mutex.h> |
87808be4 | 34 | #include <linux/sysfs.h> |
1da177e4 LT |
35 | |
36 | /* Type of the extra sensor */ | |
37 | static unsigned short extra_sensor_type; | |
38 | module_param(extra_sensor_type, ushort, 0); | |
39 | MODULE_PARM_DESC(extra_sensor_type, "Type of extra sensor (0=autodetect, 1=temperature, 2=voltage)"); | |
40 | ||
41 | /* Addresses to scan */ | |
25e9c86d | 42 | static const unsigned short normal_i2c[] = { 0x2c, 0x2d, I2C_CLIENT_END }; |
1da177e4 LT |
43 | |
44 | /* Insmod parameters */ | |
f4b50261 | 45 | I2C_CLIENT_INSMOD_1(gl520sm); |
1da177e4 | 46 | |
f28dc2f7 | 47 | /* Many GL520 constants specified below |
1da177e4 | 48 | One of the inputs can be configured as either temp or voltage. |
f28dc2f7 | 49 | That's why _TEMP2 and _IN4 access the same register |
1da177e4 LT |
50 | */ |
51 | ||
52 | /* The GL520 registers */ | |
53 | #define GL520_REG_CHIP_ID 0x00 | |
54 | #define GL520_REG_REVISION 0x01 | |
55 | #define GL520_REG_CONF 0x03 | |
56 | #define GL520_REG_MASK 0x11 | |
57 | ||
58 | #define GL520_REG_VID_INPUT 0x02 | |
59 | ||
8b4b0ab4 JD |
60 | static const u8 GL520_REG_IN_INPUT[] = { 0x15, 0x14, 0x13, 0x0d, 0x0e }; |
61 | static const u8 GL520_REG_IN_LIMIT[] = { 0x0c, 0x09, 0x0a, 0x0b }; | |
62 | static const u8 GL520_REG_IN_MIN[] = { 0x0c, 0x09, 0x0a, 0x0b, 0x18 }; | |
63 | static const u8 GL520_REG_IN_MAX[] = { 0x0c, 0x09, 0x0a, 0x0b, 0x17 }; | |
64 | ||
65 | static const u8 GL520_REG_TEMP_INPUT[] = { 0x04, 0x0e }; | |
66 | static const u8 GL520_REG_TEMP_MAX[] = { 0x05, 0x17 }; | |
67 | static const u8 GL520_REG_TEMP_MAX_HYST[] = { 0x06, 0x18 }; | |
1da177e4 LT |
68 | |
69 | #define GL520_REG_FAN_INPUT 0x07 | |
70 | #define GL520_REG_FAN_MIN 0x08 | |
71 | #define GL520_REG_FAN_DIV 0x0f | |
72 | #define GL520_REG_FAN_OFF GL520_REG_FAN_DIV | |
73 | ||
74 | #define GL520_REG_ALARMS 0x12 | |
75 | #define GL520_REG_BEEP_MASK 0x10 | |
76 | #define GL520_REG_BEEP_ENABLE GL520_REG_CONF | |
77 | ||
78 | /* | |
79 | * Function declarations | |
80 | */ | |
81 | ||
a23a9fe1 JD |
82 | static int gl520_probe(struct i2c_client *client, |
83 | const struct i2c_device_id *id); | |
310ec792 | 84 | static int gl520_detect(struct i2c_client *client, struct i2c_board_info *info); |
1da177e4 | 85 | static void gl520_init_client(struct i2c_client *client); |
a23a9fe1 | 86 | static int gl520_remove(struct i2c_client *client); |
1da177e4 LT |
87 | static int gl520_read_value(struct i2c_client *client, u8 reg); |
88 | static int gl520_write_value(struct i2c_client *client, u8 reg, u16 value); | |
89 | static struct gl520_data *gl520_update_device(struct device *dev); | |
90 | ||
91 | /* Driver data */ | |
a23a9fe1 JD |
92 | static const struct i2c_device_id gl520_id[] = { |
93 | { "gl520sm", gl520sm }, | |
94 | { } | |
95 | }; | |
96 | MODULE_DEVICE_TABLE(i2c, gl520_id); | |
97 | ||
1da177e4 | 98 | static struct i2c_driver gl520_driver = { |
a23a9fe1 | 99 | .class = I2C_CLASS_HWMON, |
cdaf7934 | 100 | .driver = { |
cdaf7934 LR |
101 | .name = "gl520sm", |
102 | }, | |
a23a9fe1 JD |
103 | .probe = gl520_probe, |
104 | .remove = gl520_remove, | |
105 | .id_table = gl520_id, | |
106 | .detect = gl520_detect, | |
107 | .address_data = &addr_data, | |
1da177e4 LT |
108 | }; |
109 | ||
110 | /* Client data */ | |
111 | struct gl520_data { | |
1beeffe4 | 112 | struct device *hwmon_dev; |
9a61bf63 | 113 | struct mutex update_lock; |
1da177e4 LT |
114 | char valid; /* zero until the following fields are valid */ |
115 | unsigned long last_updated; /* in jiffies */ | |
116 | ||
117 | u8 vid; | |
118 | u8 vrm; | |
119 | u8 in_input[5]; /* [0] = VVD */ | |
120 | u8 in_min[5]; /* [0] = VDD */ | |
121 | u8 in_max[5]; /* [0] = VDD */ | |
122 | u8 fan_input[2]; | |
123 | u8 fan_min[2]; | |
124 | u8 fan_div[2]; | |
125 | u8 fan_off; | |
126 | u8 temp_input[2]; | |
127 | u8 temp_max[2]; | |
128 | u8 temp_max_hyst[2]; | |
129 | u8 alarms; | |
130 | u8 beep_enable; | |
131 | u8 beep_mask; | |
132 | u8 alarm_mask; | |
133 | u8 two_temps; | |
134 | }; | |
135 | ||
136 | /* | |
137 | * Sysfs stuff | |
138 | */ | |
139 | ||
86d47f12 JD |
140 | static ssize_t get_cpu_vid(struct device *dev, struct device_attribute *attr, |
141 | char *buf) | |
1da177e4 | 142 | { |
86d47f12 | 143 | struct gl520_data *data = gl520_update_device(dev); |
1da177e4 LT |
144 | return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm)); |
145 | } | |
86d47f12 | 146 | static DEVICE_ATTR(cpu0_vid, S_IRUGO, get_cpu_vid, NULL); |
1da177e4 LT |
147 | |
148 | #define VDD_FROM_REG(val) (((val)*95+2)/4) | |
149 | #define VDD_TO_REG(val) (SENSORS_LIMIT((((val)*4+47)/95),0,255)) | |
150 | ||
151 | #define IN_FROM_REG(val) ((val)*19) | |
152 | #define IN_TO_REG(val) (SENSORS_LIMIT((((val)+9)/19),0,255)) | |
153 | ||
86d47f12 JD |
154 | static ssize_t get_in_input(struct device *dev, struct device_attribute *attr, |
155 | char *buf) | |
1da177e4 | 156 | { |
86d47f12 JD |
157 | int n = to_sensor_dev_attr(attr)->index; |
158 | struct gl520_data *data = gl520_update_device(dev); | |
1da177e4 LT |
159 | u8 r = data->in_input[n]; |
160 | ||
161 | if (n == 0) | |
162 | return sprintf(buf, "%d\n", VDD_FROM_REG(r)); | |
163 | else | |
164 | return sprintf(buf, "%d\n", IN_FROM_REG(r)); | |
165 | } | |
166 | ||
86d47f12 JD |
167 | static ssize_t get_in_min(struct device *dev, struct device_attribute *attr, |
168 | char *buf) | |
1da177e4 | 169 | { |
86d47f12 JD |
170 | int n = to_sensor_dev_attr(attr)->index; |
171 | struct gl520_data *data = gl520_update_device(dev); | |
1da177e4 LT |
172 | u8 r = data->in_min[n]; |
173 | ||
174 | if (n == 0) | |
175 | return sprintf(buf, "%d\n", VDD_FROM_REG(r)); | |
176 | else | |
177 | return sprintf(buf, "%d\n", IN_FROM_REG(r)); | |
178 | } | |
179 | ||
86d47f12 JD |
180 | static ssize_t get_in_max(struct device *dev, struct device_attribute *attr, |
181 | char *buf) | |
1da177e4 | 182 | { |
86d47f12 JD |
183 | int n = to_sensor_dev_attr(attr)->index; |
184 | struct gl520_data *data = gl520_update_device(dev); | |
1da177e4 LT |
185 | u8 r = data->in_max[n]; |
186 | ||
187 | if (n == 0) | |
188 | return sprintf(buf, "%d\n", VDD_FROM_REG(r)); | |
189 | else | |
190 | return sprintf(buf, "%d\n", IN_FROM_REG(r)); | |
191 | } | |
192 | ||
86d47f12 JD |
193 | static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, |
194 | const char *buf, size_t count) | |
1da177e4 | 195 | { |
86d47f12 JD |
196 | struct i2c_client *client = to_i2c_client(dev); |
197 | struct gl520_data *data = i2c_get_clientdata(client); | |
198 | int n = to_sensor_dev_attr(attr)->index; | |
1da177e4 LT |
199 | long v = simple_strtol(buf, NULL, 10); |
200 | u8 r; | |
201 | ||
9a61bf63 | 202 | mutex_lock(&data->update_lock); |
1da177e4 LT |
203 | |
204 | if (n == 0) | |
205 | r = VDD_TO_REG(v); | |
206 | else | |
207 | r = IN_TO_REG(v); | |
208 | ||
209 | data->in_min[n] = r; | |
210 | ||
211 | if (n < 4) | |
86d47f12 JD |
212 | gl520_write_value(client, GL520_REG_IN_MIN[n], |
213 | (gl520_read_value(client, GL520_REG_IN_MIN[n]) | |
214 | & ~0xff) | r); | |
1da177e4 | 215 | else |
86d47f12 | 216 | gl520_write_value(client, GL520_REG_IN_MIN[n], r); |
1da177e4 | 217 | |
9a61bf63 | 218 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
219 | return count; |
220 | } | |
221 | ||
86d47f12 JD |
222 | static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, |
223 | const char *buf, size_t count) | |
1da177e4 | 224 | { |
86d47f12 JD |
225 | struct i2c_client *client = to_i2c_client(dev); |
226 | struct gl520_data *data = i2c_get_clientdata(client); | |
227 | int n = to_sensor_dev_attr(attr)->index; | |
1da177e4 LT |
228 | long v = simple_strtol(buf, NULL, 10); |
229 | u8 r; | |
230 | ||
231 | if (n == 0) | |
232 | r = VDD_TO_REG(v); | |
233 | else | |
234 | r = IN_TO_REG(v); | |
235 | ||
9a61bf63 | 236 | mutex_lock(&data->update_lock); |
1da177e4 LT |
237 | |
238 | data->in_max[n] = r; | |
239 | ||
240 | if (n < 4) | |
86d47f12 JD |
241 | gl520_write_value(client, GL520_REG_IN_MAX[n], |
242 | (gl520_read_value(client, GL520_REG_IN_MAX[n]) | |
243 | & ~0xff00) | (r << 8)); | |
1da177e4 | 244 | else |
86d47f12 | 245 | gl520_write_value(client, GL520_REG_IN_MAX[n], r); |
1da177e4 | 246 | |
9a61bf63 | 247 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
248 | return count; |
249 | } | |
250 | ||
86d47f12 JD |
251 | static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, get_in_input, NULL, 0); |
252 | static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, get_in_input, NULL, 1); | |
253 | static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, get_in_input, NULL, 2); | |
254 | static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, get_in_input, NULL, 3); | |
255 | static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, get_in_input, NULL, 4); | |
256 | static SENSOR_DEVICE_ATTR(in0_min, S_IRUGO | S_IWUSR, | |
257 | get_in_min, set_in_min, 0); | |
258 | static SENSOR_DEVICE_ATTR(in1_min, S_IRUGO | S_IWUSR, | |
259 | get_in_min, set_in_min, 1); | |
260 | static SENSOR_DEVICE_ATTR(in2_min, S_IRUGO | S_IWUSR, | |
261 | get_in_min, set_in_min, 2); | |
262 | static SENSOR_DEVICE_ATTR(in3_min, S_IRUGO | S_IWUSR, | |
263 | get_in_min, set_in_min, 3); | |
264 | static SENSOR_DEVICE_ATTR(in4_min, S_IRUGO | S_IWUSR, | |
265 | get_in_min, set_in_min, 4); | |
266 | static SENSOR_DEVICE_ATTR(in0_max, S_IRUGO | S_IWUSR, | |
267 | get_in_max, set_in_max, 0); | |
268 | static SENSOR_DEVICE_ATTR(in1_max, S_IRUGO | S_IWUSR, | |
269 | get_in_max, set_in_max, 1); | |
270 | static SENSOR_DEVICE_ATTR(in2_max, S_IRUGO | S_IWUSR, | |
271 | get_in_max, set_in_max, 2); | |
272 | static SENSOR_DEVICE_ATTR(in3_max, S_IRUGO | S_IWUSR, | |
273 | get_in_max, set_in_max, 3); | |
274 | static SENSOR_DEVICE_ATTR(in4_max, S_IRUGO | S_IWUSR, | |
275 | get_in_max, set_in_max, 4); | |
276 | ||
1da177e4 LT |
277 | #define DIV_FROM_REG(val) (1 << (val)) |
278 | #define FAN_FROM_REG(val,div) ((val)==0 ? 0 : (480000/((val) << (div)))) | |
279 | #define FAN_TO_REG(val,div) ((val)<=0?0:SENSORS_LIMIT((480000 + ((val) << ((div)-1))) / ((val) << (div)), 1, 255)); | |
280 | ||
86d47f12 JD |
281 | static ssize_t get_fan_input(struct device *dev, struct device_attribute *attr, |
282 | char *buf) | |
1da177e4 | 283 | { |
86d47f12 JD |
284 | int n = to_sensor_dev_attr(attr)->index; |
285 | struct gl520_data *data = gl520_update_device(dev); | |
286 | ||
287 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_input[n], | |
288 | data->fan_div[n])); | |
1da177e4 LT |
289 | } |
290 | ||
86d47f12 JD |
291 | static ssize_t get_fan_min(struct device *dev, struct device_attribute *attr, |
292 | char *buf) | |
1da177e4 | 293 | { |
86d47f12 JD |
294 | int n = to_sensor_dev_attr(attr)->index; |
295 | struct gl520_data *data = gl520_update_device(dev); | |
296 | ||
297 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[n], | |
298 | data->fan_div[n])); | |
1da177e4 LT |
299 | } |
300 | ||
86d47f12 JD |
301 | static ssize_t get_fan_div(struct device *dev, struct device_attribute *attr, |
302 | char *buf) | |
1da177e4 | 303 | { |
86d47f12 JD |
304 | int n = to_sensor_dev_attr(attr)->index; |
305 | struct gl520_data *data = gl520_update_device(dev); | |
306 | ||
307 | return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[n])); | |
1da177e4 LT |
308 | } |
309 | ||
86d47f12 JD |
310 | static ssize_t get_fan_off(struct device *dev, struct device_attribute *attr, |
311 | char *buf) | |
1da177e4 | 312 | { |
86d47f12 | 313 | struct gl520_data *data = gl520_update_device(dev); |
1da177e4 LT |
314 | return sprintf(buf, "%d\n", data->fan_off); |
315 | } | |
316 | ||
86d47f12 JD |
317 | static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, |
318 | const char *buf, size_t count) | |
1da177e4 | 319 | { |
86d47f12 JD |
320 | struct i2c_client *client = to_i2c_client(dev); |
321 | struct gl520_data *data = i2c_get_clientdata(client); | |
322 | int n = to_sensor_dev_attr(attr)->index; | |
1da177e4 LT |
323 | unsigned long v = simple_strtoul(buf, NULL, 10); |
324 | u8 r; | |
325 | ||
9a61bf63 | 326 | mutex_lock(&data->update_lock); |
86d47f12 JD |
327 | r = FAN_TO_REG(v, data->fan_div[n]); |
328 | data->fan_min[n] = r; | |
1da177e4 | 329 | |
86d47f12 JD |
330 | if (n == 0) |
331 | gl520_write_value(client, GL520_REG_FAN_MIN, | |
332 | (gl520_read_value(client, GL520_REG_FAN_MIN) | |
333 | & ~0xff00) | (r << 8)); | |
1da177e4 | 334 | else |
86d47f12 JD |
335 | gl520_write_value(client, GL520_REG_FAN_MIN, |
336 | (gl520_read_value(client, GL520_REG_FAN_MIN) | |
337 | & ~0xff) | r); | |
1da177e4 LT |
338 | |
339 | data->beep_mask = gl520_read_value(client, GL520_REG_BEEP_MASK); | |
86d47f12 JD |
340 | if (data->fan_min[n] == 0) |
341 | data->alarm_mask &= (n == 0) ? ~0x20 : ~0x40; | |
1da177e4 | 342 | else |
86d47f12 | 343 | data->alarm_mask |= (n == 0) ? 0x20 : 0x40; |
1da177e4 LT |
344 | data->beep_mask &= data->alarm_mask; |
345 | gl520_write_value(client, GL520_REG_BEEP_MASK, data->beep_mask); | |
346 | ||
9a61bf63 | 347 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
348 | return count; |
349 | } | |
350 | ||
86d47f12 JD |
351 | static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, |
352 | const char *buf, size_t count) | |
1da177e4 | 353 | { |
86d47f12 JD |
354 | struct i2c_client *client = to_i2c_client(dev); |
355 | struct gl520_data *data = i2c_get_clientdata(client); | |
356 | int n = to_sensor_dev_attr(attr)->index; | |
1da177e4 LT |
357 | unsigned long v = simple_strtoul(buf, NULL, 10); |
358 | u8 r; | |
359 | ||
360 | switch (v) { | |
361 | case 1: r = 0; break; | |
362 | case 2: r = 1; break; | |
363 | case 4: r = 2; break; | |
364 | case 8: r = 3; break; | |
365 | default: | |
366 | dev_err(&client->dev, "fan_div value %ld not supported. Choose one of 1, 2, 4 or 8!\n", v); | |
367 | return -EINVAL; | |
368 | } | |
369 | ||
9a61bf63 | 370 | mutex_lock(&data->update_lock); |
86d47f12 | 371 | data->fan_div[n] = r; |
1da177e4 | 372 | |
86d47f12 JD |
373 | if (n == 0) |
374 | gl520_write_value(client, GL520_REG_FAN_DIV, | |
375 | (gl520_read_value(client, GL520_REG_FAN_DIV) | |
376 | & ~0xc0) | (r << 6)); | |
1da177e4 | 377 | else |
86d47f12 JD |
378 | gl520_write_value(client, GL520_REG_FAN_DIV, |
379 | (gl520_read_value(client, GL520_REG_FAN_DIV) | |
380 | & ~0x30) | (r << 4)); | |
1da177e4 | 381 | |
9a61bf63 | 382 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
383 | return count; |
384 | } | |
385 | ||
86d47f12 JD |
386 | static ssize_t set_fan_off(struct device *dev, struct device_attribute *attr, |
387 | const char *buf, size_t count) | |
1da177e4 | 388 | { |
86d47f12 JD |
389 | struct i2c_client *client = to_i2c_client(dev); |
390 | struct gl520_data *data = i2c_get_clientdata(client); | |
1da177e4 LT |
391 | u8 r = simple_strtoul(buf, NULL, 10)?1:0; |
392 | ||
9a61bf63 | 393 | mutex_lock(&data->update_lock); |
1da177e4 | 394 | data->fan_off = r; |
86d47f12 JD |
395 | gl520_write_value(client, GL520_REG_FAN_OFF, |
396 | (gl520_read_value(client, GL520_REG_FAN_OFF) | |
397 | & ~0x0c) | (r << 2)); | |
9a61bf63 | 398 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
399 | return count; |
400 | } | |
401 | ||
86d47f12 JD |
402 | static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, get_fan_input, NULL, 0); |
403 | static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, get_fan_input, NULL, 1); | |
404 | static SENSOR_DEVICE_ATTR(fan1_min, S_IRUGO | S_IWUSR, | |
405 | get_fan_min, set_fan_min, 0); | |
406 | static SENSOR_DEVICE_ATTR(fan2_min, S_IRUGO | S_IWUSR, | |
407 | get_fan_min, set_fan_min, 1); | |
408 | static SENSOR_DEVICE_ATTR(fan1_div, S_IRUGO | S_IWUSR, | |
409 | get_fan_div, set_fan_div, 0); | |
410 | static SENSOR_DEVICE_ATTR(fan2_div, S_IRUGO | S_IWUSR, | |
411 | get_fan_div, set_fan_div, 1); | |
412 | static DEVICE_ATTR(fan1_off, S_IRUGO | S_IWUSR, | |
413 | get_fan_off, set_fan_off); | |
414 | ||
1da177e4 LT |
415 | #define TEMP_FROM_REG(val) (((val) - 130) * 1000) |
416 | #define TEMP_TO_REG(val) (SENSORS_LIMIT(((((val)<0?(val)-500:(val)+500) / 1000)+130),0,255)) | |
417 | ||
86d47f12 JD |
418 | static ssize_t get_temp_input(struct device *dev, struct device_attribute *attr, |
419 | char *buf) | |
1da177e4 | 420 | { |
86d47f12 JD |
421 | int n = to_sensor_dev_attr(attr)->index; |
422 | struct gl520_data *data = gl520_update_device(dev); | |
423 | ||
424 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_input[n])); | |
1da177e4 LT |
425 | } |
426 | ||
86d47f12 JD |
427 | static ssize_t get_temp_max(struct device *dev, struct device_attribute *attr, |
428 | char *buf) | |
1da177e4 | 429 | { |
86d47f12 JD |
430 | int n = to_sensor_dev_attr(attr)->index; |
431 | struct gl520_data *data = gl520_update_device(dev); | |
432 | ||
433 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[n])); | |
1da177e4 LT |
434 | } |
435 | ||
86d47f12 JD |
436 | static ssize_t get_temp_max_hyst(struct device *dev, struct device_attribute |
437 | *attr, char *buf) | |
1da177e4 | 438 | { |
86d47f12 JD |
439 | int n = to_sensor_dev_attr(attr)->index; |
440 | struct gl520_data *data = gl520_update_device(dev); | |
441 | ||
442 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max_hyst[n])); | |
1da177e4 LT |
443 | } |
444 | ||
86d47f12 JD |
445 | static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, |
446 | const char *buf, size_t count) | |
1da177e4 | 447 | { |
86d47f12 JD |
448 | struct i2c_client *client = to_i2c_client(dev); |
449 | struct gl520_data *data = i2c_get_clientdata(client); | |
450 | int n = to_sensor_dev_attr(attr)->index; | |
1da177e4 LT |
451 | long v = simple_strtol(buf, NULL, 10); |
452 | ||
9a61bf63 | 453 | mutex_lock(&data->update_lock); |
86d47f12 JD |
454 | data->temp_max[n] = TEMP_TO_REG(v); |
455 | gl520_write_value(client, GL520_REG_TEMP_MAX[n], data->temp_max[n]); | |
9a61bf63 | 456 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
457 | return count; |
458 | } | |
459 | ||
86d47f12 JD |
460 | static ssize_t set_temp_max_hyst(struct device *dev, struct device_attribute |
461 | *attr, const char *buf, size_t count) | |
1da177e4 | 462 | { |
86d47f12 JD |
463 | struct i2c_client *client = to_i2c_client(dev); |
464 | struct gl520_data *data = i2c_get_clientdata(client); | |
465 | int n = to_sensor_dev_attr(attr)->index; | |
1da177e4 LT |
466 | long v = simple_strtol(buf, NULL, 10); |
467 | ||
9a61bf63 | 468 | mutex_lock(&data->update_lock); |
86d47f12 JD |
469 | data->temp_max_hyst[n] = TEMP_TO_REG(v); |
470 | gl520_write_value(client, GL520_REG_TEMP_MAX_HYST[n], | |
471 | data->temp_max_hyst[n]); | |
9a61bf63 | 472 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
473 | return count; |
474 | } | |
475 | ||
86d47f12 JD |
476 | static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, get_temp_input, NULL, 0); |
477 | static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, get_temp_input, NULL, 1); | |
478 | static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO | S_IWUSR, | |
479 | get_temp_max, set_temp_max, 0); | |
480 | static SENSOR_DEVICE_ATTR(temp2_max, S_IRUGO | S_IWUSR, | |
481 | get_temp_max, set_temp_max, 1); | |
482 | static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR, | |
483 | get_temp_max_hyst, set_temp_max_hyst, 0); | |
484 | static SENSOR_DEVICE_ATTR(temp2_max_hyst, S_IRUGO | S_IWUSR, | |
485 | get_temp_max_hyst, set_temp_max_hyst, 1); | |
486 | ||
487 | static ssize_t get_alarms(struct device *dev, struct device_attribute *attr, | |
488 | char *buf) | |
1da177e4 | 489 | { |
86d47f12 | 490 | struct gl520_data *data = gl520_update_device(dev); |
1da177e4 LT |
491 | return sprintf(buf, "%d\n", data->alarms); |
492 | } | |
493 | ||
86d47f12 JD |
494 | static ssize_t get_beep_enable(struct device *dev, struct device_attribute |
495 | *attr, char *buf) | |
1da177e4 | 496 | { |
86d47f12 | 497 | struct gl520_data *data = gl520_update_device(dev); |
1da177e4 LT |
498 | return sprintf(buf, "%d\n", data->beep_enable); |
499 | } | |
500 | ||
86d47f12 JD |
501 | static ssize_t get_beep_mask(struct device *dev, struct device_attribute *attr, |
502 | char *buf) | |
1da177e4 | 503 | { |
86d47f12 | 504 | struct gl520_data *data = gl520_update_device(dev); |
1da177e4 LT |
505 | return sprintf(buf, "%d\n", data->beep_mask); |
506 | } | |
507 | ||
86d47f12 JD |
508 | static ssize_t set_beep_enable(struct device *dev, struct device_attribute |
509 | *attr, const char *buf, size_t count) | |
1da177e4 | 510 | { |
86d47f12 JD |
511 | struct i2c_client *client = to_i2c_client(dev); |
512 | struct gl520_data *data = i2c_get_clientdata(client); | |
1da177e4 LT |
513 | u8 r = simple_strtoul(buf, NULL, 10)?0:1; |
514 | ||
9a61bf63 | 515 | mutex_lock(&data->update_lock); |
1da177e4 | 516 | data->beep_enable = !r; |
86d47f12 JD |
517 | gl520_write_value(client, GL520_REG_BEEP_ENABLE, |
518 | (gl520_read_value(client, GL520_REG_BEEP_ENABLE) | |
519 | & ~0x04) | (r << 2)); | |
9a61bf63 | 520 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
521 | return count; |
522 | } | |
523 | ||
86d47f12 JD |
524 | static ssize_t set_beep_mask(struct device *dev, struct device_attribute *attr, |
525 | const char *buf, size_t count) | |
1da177e4 | 526 | { |
86d47f12 JD |
527 | struct i2c_client *client = to_i2c_client(dev); |
528 | struct gl520_data *data = i2c_get_clientdata(client); | |
1da177e4 | 529 | u8 r = simple_strtoul(buf, NULL, 10); |
f28dc2f7 | 530 | |
9a61bf63 | 531 | mutex_lock(&data->update_lock); |
1da177e4 LT |
532 | r &= data->alarm_mask; |
533 | data->beep_mask = r; | |
86d47f12 | 534 | gl520_write_value(client, GL520_REG_BEEP_MASK, r); |
9a61bf63 | 535 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
536 | return count; |
537 | } | |
538 | ||
86d47f12 JD |
539 | static DEVICE_ATTR(alarms, S_IRUGO, get_alarms, NULL); |
540 | static DEVICE_ATTR(beep_enable, S_IRUGO | S_IWUSR, | |
541 | get_beep_enable, set_beep_enable); | |
542 | static DEVICE_ATTR(beep_mask, S_IRUGO | S_IWUSR, | |
543 | get_beep_mask, set_beep_mask); | |
544 | ||
e86a7760 JD |
545 | static ssize_t get_alarm(struct device *dev, struct device_attribute *attr, |
546 | char *buf) | |
547 | { | |
548 | int bit_nr = to_sensor_dev_attr(attr)->index; | |
549 | struct gl520_data *data = gl520_update_device(dev); | |
550 | ||
551 | return sprintf(buf, "%d\n", (data->alarms >> bit_nr) & 1); | |
552 | } | |
553 | ||
554 | static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, get_alarm, NULL, 0); | |
555 | static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, get_alarm, NULL, 1); | |
556 | static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, get_alarm, NULL, 2); | |
557 | static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, get_alarm, NULL, 3); | |
558 | static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, get_alarm, NULL, 4); | |
559 | static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, get_alarm, NULL, 5); | |
560 | static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, get_alarm, NULL, 6); | |
561 | static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, get_alarm, NULL, 7); | |
562 | static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, get_alarm, NULL, 7); | |
563 | ||
564 | static ssize_t get_beep(struct device *dev, struct device_attribute *attr, | |
565 | char *buf) | |
566 | { | |
567 | int bitnr = to_sensor_dev_attr(attr)->index; | |
568 | struct gl520_data *data = gl520_update_device(dev); | |
569 | ||
570 | return sprintf(buf, "%d\n", (data->beep_mask >> bitnr) & 1); | |
571 | } | |
572 | ||
573 | static ssize_t set_beep(struct device *dev, struct device_attribute *attr, | |
574 | const char *buf, size_t count) | |
575 | { | |
576 | struct i2c_client *client = to_i2c_client(dev); | |
577 | struct gl520_data *data = i2c_get_clientdata(client); | |
578 | int bitnr = to_sensor_dev_attr(attr)->index; | |
579 | unsigned long bit; | |
580 | ||
581 | bit = simple_strtoul(buf, NULL, 10); | |
582 | if (bit & ~1) | |
583 | return -EINVAL; | |
584 | ||
585 | mutex_lock(&data->update_lock); | |
586 | data->beep_mask = gl520_read_value(client, GL520_REG_BEEP_MASK); | |
587 | if (bit) | |
588 | data->beep_mask |= (1 << bitnr); | |
589 | else | |
590 | data->beep_mask &= ~(1 << bitnr); | |
591 | gl520_write_value(client, GL520_REG_BEEP_MASK, data->beep_mask); | |
592 | mutex_unlock(&data->update_lock); | |
593 | return count; | |
594 | } | |
595 | ||
596 | static SENSOR_DEVICE_ATTR(in0_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 0); | |
597 | static SENSOR_DEVICE_ATTR(in1_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 1); | |
598 | static SENSOR_DEVICE_ATTR(in2_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 2); | |
599 | static SENSOR_DEVICE_ATTR(in3_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 3); | |
600 | static SENSOR_DEVICE_ATTR(temp1_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 4); | |
601 | static SENSOR_DEVICE_ATTR(fan1_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 5); | |
602 | static SENSOR_DEVICE_ATTR(fan2_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 6); | |
603 | static SENSOR_DEVICE_ATTR(temp2_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 7); | |
604 | static SENSOR_DEVICE_ATTR(in4_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 7); | |
605 | ||
87808be4 JD |
606 | static struct attribute *gl520_attributes[] = { |
607 | &dev_attr_cpu0_vid.attr, | |
608 | ||
86d47f12 JD |
609 | &sensor_dev_attr_in0_input.dev_attr.attr, |
610 | &sensor_dev_attr_in0_min.dev_attr.attr, | |
611 | &sensor_dev_attr_in0_max.dev_attr.attr, | |
e86a7760 JD |
612 | &sensor_dev_attr_in0_alarm.dev_attr.attr, |
613 | &sensor_dev_attr_in0_beep.dev_attr.attr, | |
86d47f12 JD |
614 | &sensor_dev_attr_in1_input.dev_attr.attr, |
615 | &sensor_dev_attr_in1_min.dev_attr.attr, | |
616 | &sensor_dev_attr_in1_max.dev_attr.attr, | |
e86a7760 JD |
617 | &sensor_dev_attr_in1_alarm.dev_attr.attr, |
618 | &sensor_dev_attr_in1_beep.dev_attr.attr, | |
86d47f12 JD |
619 | &sensor_dev_attr_in2_input.dev_attr.attr, |
620 | &sensor_dev_attr_in2_min.dev_attr.attr, | |
621 | &sensor_dev_attr_in2_max.dev_attr.attr, | |
e86a7760 JD |
622 | &sensor_dev_attr_in2_alarm.dev_attr.attr, |
623 | &sensor_dev_attr_in2_beep.dev_attr.attr, | |
86d47f12 JD |
624 | &sensor_dev_attr_in3_input.dev_attr.attr, |
625 | &sensor_dev_attr_in3_min.dev_attr.attr, | |
626 | &sensor_dev_attr_in3_max.dev_attr.attr, | |
e86a7760 JD |
627 | &sensor_dev_attr_in3_alarm.dev_attr.attr, |
628 | &sensor_dev_attr_in3_beep.dev_attr.attr, | |
86d47f12 JD |
629 | |
630 | &sensor_dev_attr_fan1_input.dev_attr.attr, | |
631 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
632 | &sensor_dev_attr_fan1_div.dev_attr.attr, | |
e86a7760 JD |
633 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
634 | &sensor_dev_attr_fan1_beep.dev_attr.attr, | |
87808be4 | 635 | &dev_attr_fan1_off.attr, |
86d47f12 JD |
636 | &sensor_dev_attr_fan2_input.dev_attr.attr, |
637 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
638 | &sensor_dev_attr_fan2_div.dev_attr.attr, | |
e86a7760 JD |
639 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, |
640 | &sensor_dev_attr_fan2_beep.dev_attr.attr, | |
87808be4 | 641 | |
86d47f12 JD |
642 | &sensor_dev_attr_temp1_input.dev_attr.attr, |
643 | &sensor_dev_attr_temp1_max.dev_attr.attr, | |
644 | &sensor_dev_attr_temp1_max_hyst.dev_attr.attr, | |
e86a7760 JD |
645 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, |
646 | &sensor_dev_attr_temp1_beep.dev_attr.attr, | |
87808be4 JD |
647 | |
648 | &dev_attr_alarms.attr, | |
649 | &dev_attr_beep_enable.attr, | |
650 | &dev_attr_beep_mask.attr, | |
651 | NULL | |
652 | }; | |
653 | ||
654 | static const struct attribute_group gl520_group = { | |
655 | .attrs = gl520_attributes, | |
656 | }; | |
657 | ||
658 | static struct attribute *gl520_attributes_opt[] = { | |
86d47f12 JD |
659 | &sensor_dev_attr_in4_input.dev_attr.attr, |
660 | &sensor_dev_attr_in4_min.dev_attr.attr, | |
661 | &sensor_dev_attr_in4_max.dev_attr.attr, | |
e86a7760 JD |
662 | &sensor_dev_attr_in4_alarm.dev_attr.attr, |
663 | &sensor_dev_attr_in4_beep.dev_attr.attr, | |
87808be4 | 664 | |
86d47f12 JD |
665 | &sensor_dev_attr_temp2_input.dev_attr.attr, |
666 | &sensor_dev_attr_temp2_max.dev_attr.attr, | |
667 | &sensor_dev_attr_temp2_max_hyst.dev_attr.attr, | |
e86a7760 JD |
668 | &sensor_dev_attr_temp2_alarm.dev_attr.attr, |
669 | &sensor_dev_attr_temp2_beep.dev_attr.attr, | |
87808be4 JD |
670 | NULL |
671 | }; | |
672 | ||
673 | static const struct attribute_group gl520_group_opt = { | |
674 | .attrs = gl520_attributes_opt, | |
675 | }; | |
676 | ||
1da177e4 LT |
677 | |
678 | /* | |
679 | * Real code | |
680 | */ | |
681 | ||
a23a9fe1 | 682 | /* Return 0 if detection is successful, -ENODEV otherwise */ |
310ec792 | 683 | static int gl520_detect(struct i2c_client *client, struct i2c_board_info *info) |
1da177e4 | 684 | { |
a23a9fe1 | 685 | struct i2c_adapter *adapter = client->adapter; |
1da177e4 LT |
686 | |
687 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA | | |
688 | I2C_FUNC_SMBUS_WORD_DATA)) | |
a23a9fe1 | 689 | return -ENODEV; |
1da177e4 LT |
690 | |
691 | /* Determine the chip type. */ | |
52df6440 JD |
692 | if ((gl520_read_value(client, GL520_REG_CHIP_ID) != 0x20) || |
693 | ((gl520_read_value(client, GL520_REG_REVISION) & 0x7f) != 0x00) || | |
694 | ((gl520_read_value(client, GL520_REG_CONF) & 0x80) != 0x00)) { | |
695 | dev_dbg(&client->dev, "Unknown chip type, skipping\n"); | |
696 | return -ENODEV; | |
1da177e4 LT |
697 | } |
698 | ||
a23a9fe1 | 699 | strlcpy(info->type, "gl520sm", I2C_NAME_SIZE); |
1da177e4 | 700 | |
a23a9fe1 JD |
701 | return 0; |
702 | } | |
703 | ||
704 | static int gl520_probe(struct i2c_client *client, | |
705 | const struct i2c_device_id *id) | |
706 | { | |
707 | struct gl520_data *data; | |
708 | int err; | |
709 | ||
710 | data = kzalloc(sizeof(struct gl520_data), GFP_KERNEL); | |
711 | if (!data) { | |
712 | err = -ENOMEM; | |
713 | goto exit; | |
714 | } | |
715 | ||
716 | i2c_set_clientdata(client, data); | |
717 | mutex_init(&data->update_lock); | |
1da177e4 LT |
718 | |
719 | /* Initialize the GL520SM chip */ | |
f28dc2f7 | 720 | gl520_init_client(client); |
1da177e4 LT |
721 | |
722 | /* Register sysfs hooks */ | |
f28dc2f7 | 723 | if ((err = sysfs_create_group(&client->dev.kobj, &gl520_group))) |
a23a9fe1 | 724 | goto exit_free; |
1da177e4 | 725 | |
87808be4 | 726 | if (data->two_temps) { |
f28dc2f7 | 727 | if ((err = device_create_file(&client->dev, |
86d47f12 | 728 | &sensor_dev_attr_temp2_input.dev_attr)) |
f28dc2f7 | 729 | || (err = device_create_file(&client->dev, |
86d47f12 | 730 | &sensor_dev_attr_temp2_max.dev_attr)) |
f28dc2f7 | 731 | || (err = device_create_file(&client->dev, |
e86a7760 JD |
732 | &sensor_dev_attr_temp2_max_hyst.dev_attr)) |
733 | || (err = device_create_file(&client->dev, | |
734 | &sensor_dev_attr_temp2_alarm.dev_attr)) | |
735 | || (err = device_create_file(&client->dev, | |
736 | &sensor_dev_attr_temp2_beep.dev_attr))) | |
87808be4 JD |
737 | goto exit_remove_files; |
738 | } else { | |
f28dc2f7 | 739 | if ((err = device_create_file(&client->dev, |
86d47f12 | 740 | &sensor_dev_attr_in4_input.dev_attr)) |
f28dc2f7 | 741 | || (err = device_create_file(&client->dev, |
86d47f12 | 742 | &sensor_dev_attr_in4_min.dev_attr)) |
f28dc2f7 | 743 | || (err = device_create_file(&client->dev, |
e86a7760 JD |
744 | &sensor_dev_attr_in4_max.dev_attr)) |
745 | || (err = device_create_file(&client->dev, | |
746 | &sensor_dev_attr_in4_alarm.dev_attr)) | |
747 | || (err = device_create_file(&client->dev, | |
748 | &sensor_dev_attr_in4_beep.dev_attr))) | |
87808be4 JD |
749 | goto exit_remove_files; |
750 | } | |
1da177e4 | 751 | |
1da177e4 | 752 | |
f28dc2f7 | 753 | data->hwmon_dev = hwmon_device_register(&client->dev); |
1beeffe4 TJ |
754 | if (IS_ERR(data->hwmon_dev)) { |
755 | err = PTR_ERR(data->hwmon_dev); | |
87808be4 JD |
756 | goto exit_remove_files; |
757 | } | |
1da177e4 LT |
758 | |
759 | return 0; | |
760 | ||
87808be4 | 761 | exit_remove_files: |
f28dc2f7 JD |
762 | sysfs_remove_group(&client->dev.kobj, &gl520_group); |
763 | sysfs_remove_group(&client->dev.kobj, &gl520_group_opt); | |
1da177e4 LT |
764 | exit_free: |
765 | kfree(data); | |
766 | exit: | |
767 | return err; | |
768 | } | |
769 | ||
770 | ||
771 | /* Called when we have found a new GL520SM. */ | |
772 | static void gl520_init_client(struct i2c_client *client) | |
773 | { | |
774 | struct gl520_data *data = i2c_get_clientdata(client); | |
775 | u8 oldconf, conf; | |
776 | ||
777 | conf = oldconf = gl520_read_value(client, GL520_REG_CONF); | |
778 | ||
779 | data->alarm_mask = 0xff; | |
303760b4 | 780 | data->vrm = vid_which_vrm(); |
1da177e4 LT |
781 | |
782 | if (extra_sensor_type == 1) | |
783 | conf &= ~0x10; | |
784 | else if (extra_sensor_type == 2) | |
785 | conf |= 0x10; | |
786 | data->two_temps = !(conf & 0x10); | |
787 | ||
788 | /* If IRQ# is disabled, we can safely force comparator mode */ | |
789 | if (!(conf & 0x20)) | |
790 | conf &= 0xf7; | |
791 | ||
792 | /* Enable monitoring if needed */ | |
793 | conf |= 0x40; | |
794 | ||
795 | if (conf != oldconf) | |
796 | gl520_write_value(client, GL520_REG_CONF, conf); | |
797 | ||
798 | gl520_update_device(&(client->dev)); | |
799 | ||
800 | if (data->fan_min[0] == 0) | |
801 | data->alarm_mask &= ~0x20; | |
802 | if (data->fan_min[1] == 0) | |
803 | data->alarm_mask &= ~0x40; | |
804 | ||
805 | data->beep_mask &= data->alarm_mask; | |
806 | gl520_write_value(client, GL520_REG_BEEP_MASK, data->beep_mask); | |
807 | } | |
808 | ||
a23a9fe1 | 809 | static int gl520_remove(struct i2c_client *client) |
1da177e4 | 810 | { |
943b0830 | 811 | struct gl520_data *data = i2c_get_clientdata(client); |
1da177e4 | 812 | |
1beeffe4 | 813 | hwmon_device_unregister(data->hwmon_dev); |
87808be4 JD |
814 | sysfs_remove_group(&client->dev.kobj, &gl520_group); |
815 | sysfs_remove_group(&client->dev.kobj, &gl520_group_opt); | |
943b0830 | 816 | |
943b0830 | 817 | kfree(data); |
1da177e4 LT |
818 | return 0; |
819 | } | |
820 | ||
821 | ||
f28dc2f7 | 822 | /* Registers 0x07 to 0x0c are word-sized, others are byte-sized |
1da177e4 LT |
823 | GL520 uses a high-byte first convention */ |
824 | static int gl520_read_value(struct i2c_client *client, u8 reg) | |
825 | { | |
826 | if ((reg >= 0x07) && (reg <= 0x0c)) | |
827 | return swab16(i2c_smbus_read_word_data(client, reg)); | |
828 | else | |
829 | return i2c_smbus_read_byte_data(client, reg); | |
830 | } | |
831 | ||
832 | static int gl520_write_value(struct i2c_client *client, u8 reg, u16 value) | |
833 | { | |
834 | if ((reg >= 0x07) && (reg <= 0x0c)) | |
835 | return i2c_smbus_write_word_data(client, reg, swab16(value)); | |
836 | else | |
837 | return i2c_smbus_write_byte_data(client, reg, value); | |
838 | } | |
839 | ||
840 | ||
841 | static struct gl520_data *gl520_update_device(struct device *dev) | |
842 | { | |
843 | struct i2c_client *client = to_i2c_client(dev); | |
844 | struct gl520_data *data = i2c_get_clientdata(client); | |
8b4b0ab4 | 845 | int val, i; |
1da177e4 | 846 | |
9a61bf63 | 847 | mutex_lock(&data->update_lock); |
1da177e4 | 848 | |
0cacdf29 | 849 | if (time_after(jiffies, data->last_updated + 2 * HZ) || !data->valid) { |
1da177e4 LT |
850 | |
851 | dev_dbg(&client->dev, "Starting gl520sm update\n"); | |
852 | ||
853 | data->alarms = gl520_read_value(client, GL520_REG_ALARMS); | |
854 | data->beep_mask = gl520_read_value(client, GL520_REG_BEEP_MASK); | |
855 | data->vid = gl520_read_value(client, GL520_REG_VID_INPUT) & 0x1f; | |
856 | ||
8b4b0ab4 JD |
857 | for (i = 0; i < 4; i++) { |
858 | data->in_input[i] = gl520_read_value(client, | |
859 | GL520_REG_IN_INPUT[i]); | |
860 | val = gl520_read_value(client, GL520_REG_IN_LIMIT[i]); | |
861 | data->in_min[i] = val & 0xff; | |
862 | data->in_max[i] = (val >> 8) & 0xff; | |
863 | } | |
1da177e4 LT |
864 | |
865 | val = gl520_read_value(client, GL520_REG_FAN_INPUT); | |
866 | data->fan_input[0] = (val >> 8) & 0xff; | |
867 | data->fan_input[1] = val & 0xff; | |
868 | ||
869 | val = gl520_read_value(client, GL520_REG_FAN_MIN); | |
870 | data->fan_min[0] = (val >> 8) & 0xff; | |
871 | data->fan_min[1] = val & 0xff; | |
872 | ||
8b4b0ab4 JD |
873 | data->temp_input[0] = gl520_read_value(client, |
874 | GL520_REG_TEMP_INPUT[0]); | |
875 | data->temp_max[0] = gl520_read_value(client, | |
876 | GL520_REG_TEMP_MAX[0]); | |
877 | data->temp_max_hyst[0] = gl520_read_value(client, | |
878 | GL520_REG_TEMP_MAX_HYST[0]); | |
1da177e4 LT |
879 | |
880 | val = gl520_read_value(client, GL520_REG_FAN_DIV); | |
881 | data->fan_div[0] = (val >> 6) & 0x03; | |
882 | data->fan_div[1] = (val >> 4) & 0x03; | |
883 | data->fan_off = (val >> 2) & 0x01; | |
884 | ||
885 | data->alarms &= data->alarm_mask; | |
886 | ||
887 | val = gl520_read_value(client, GL520_REG_CONF); | |
888 | data->beep_enable = !((val >> 2) & 1); | |
889 | ||
1da177e4 LT |
890 | /* Temp1 and Vin4 are the same input */ |
891 | if (data->two_temps) { | |
8b4b0ab4 JD |
892 | data->temp_input[1] = gl520_read_value(client, |
893 | GL520_REG_TEMP_INPUT[1]); | |
894 | data->temp_max[1] = gl520_read_value(client, | |
895 | GL520_REG_TEMP_MAX[1]); | |
896 | data->temp_max_hyst[1] = gl520_read_value(client, | |
897 | GL520_REG_TEMP_MAX_HYST[1]); | |
1da177e4 | 898 | } else { |
8b4b0ab4 JD |
899 | data->in_input[4] = gl520_read_value(client, |
900 | GL520_REG_IN_INPUT[4]); | |
901 | data->in_min[4] = gl520_read_value(client, | |
902 | GL520_REG_IN_MIN[4]); | |
903 | data->in_max[4] = gl520_read_value(client, | |
904 | GL520_REG_IN_MAX[4]); | |
1da177e4 LT |
905 | } |
906 | ||
907 | data->last_updated = jiffies; | |
908 | data->valid = 1; | |
909 | } | |
910 | ||
9a61bf63 | 911 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
912 | |
913 | return data; | |
914 | } | |
915 | ||
916 | ||
917 | static int __init sensors_gl520sm_init(void) | |
918 | { | |
919 | return i2c_add_driver(&gl520_driver); | |
920 | } | |
921 | ||
922 | static void __exit sensors_gl520sm_exit(void) | |
923 | { | |
924 | i2c_del_driver(&gl520_driver); | |
925 | } | |
926 | ||
927 | ||
928 | MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, " | |
96de0e25 | 929 | "Kyösti Mälkki <kmalkki@cc.hut.fi>, " |
1da177e4 LT |
930 | "Maarten Deprez <maartendeprez@users.sourceforge.net>"); |
931 | MODULE_DESCRIPTION("GL520SM driver"); | |
932 | MODULE_LICENSE("GPL"); | |
933 | ||
934 | module_init(sensors_gl520sm_init); | |
935 | module_exit(sensors_gl520sm_exit); |