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