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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 | 43 | |
f28dc2f7 | 44 | /* Many GL520 constants specified below |
1da177e4 | 45 | One of the inputs can be configured as either temp or voltage. |
f28dc2f7 | 46 | That's why _TEMP2 and _IN4 access the same register |
1da177e4 LT |
47 | */ |
48 | ||
49 | /* The GL520 registers */ | |
50 | #define GL520_REG_CHIP_ID 0x00 | |
51 | #define GL520_REG_REVISION 0x01 | |
52 | #define GL520_REG_CONF 0x03 | |
53 | #define GL520_REG_MASK 0x11 | |
54 | ||
55 | #define GL520_REG_VID_INPUT 0x02 | |
56 | ||
8b4b0ab4 JD |
57 | static const u8 GL520_REG_IN_INPUT[] = { 0x15, 0x14, 0x13, 0x0d, 0x0e }; |
58 | static const u8 GL520_REG_IN_LIMIT[] = { 0x0c, 0x09, 0x0a, 0x0b }; | |
59 | static const u8 GL520_REG_IN_MIN[] = { 0x0c, 0x09, 0x0a, 0x0b, 0x18 }; | |
60 | static const u8 GL520_REG_IN_MAX[] = { 0x0c, 0x09, 0x0a, 0x0b, 0x17 }; | |
61 | ||
62 | static const u8 GL520_REG_TEMP_INPUT[] = { 0x04, 0x0e }; | |
63 | static const u8 GL520_REG_TEMP_MAX[] = { 0x05, 0x17 }; | |
64 | static const u8 GL520_REG_TEMP_MAX_HYST[] = { 0x06, 0x18 }; | |
1da177e4 LT |
65 | |
66 | #define GL520_REG_FAN_INPUT 0x07 | |
67 | #define GL520_REG_FAN_MIN 0x08 | |
68 | #define GL520_REG_FAN_DIV 0x0f | |
69 | #define GL520_REG_FAN_OFF GL520_REG_FAN_DIV | |
70 | ||
71 | #define GL520_REG_ALARMS 0x12 | |
72 | #define GL520_REG_BEEP_MASK 0x10 | |
73 | #define GL520_REG_BEEP_ENABLE GL520_REG_CONF | |
74 | ||
75 | /* | |
76 | * Function declarations | |
77 | */ | |
78 | ||
a23a9fe1 JD |
79 | static int gl520_probe(struct i2c_client *client, |
80 | const struct i2c_device_id *id); | |
310ec792 | 81 | static int gl520_detect(struct i2c_client *client, struct i2c_board_info *info); |
1da177e4 | 82 | static void gl520_init_client(struct i2c_client *client); |
a23a9fe1 | 83 | static int gl520_remove(struct i2c_client *client); |
1da177e4 LT |
84 | static int gl520_read_value(struct i2c_client *client, u8 reg); |
85 | static int gl520_write_value(struct i2c_client *client, u8 reg, u16 value); | |
86 | static struct gl520_data *gl520_update_device(struct device *dev); | |
87 | ||
88 | /* Driver data */ | |
a23a9fe1 | 89 | static const struct i2c_device_id gl520_id[] = { |
1f86df49 | 90 | { "gl520sm", 0 }, |
a23a9fe1 JD |
91 | { } |
92 | }; | |
93 | MODULE_DEVICE_TABLE(i2c, gl520_id); | |
94 | ||
1da177e4 | 95 | static struct i2c_driver gl520_driver = { |
a23a9fe1 | 96 | .class = I2C_CLASS_HWMON, |
cdaf7934 | 97 | .driver = { |
cdaf7934 LR |
98 | .name = "gl520sm", |
99 | }, | |
a23a9fe1 JD |
100 | .probe = gl520_probe, |
101 | .remove = gl520_remove, | |
102 | .id_table = gl520_id, | |
103 | .detect = gl520_detect, | |
c3813d6a | 104 | .address_list = normal_i2c, |
1da177e4 LT |
105 | }; |
106 | ||
107 | /* Client data */ | |
108 | struct gl520_data { | |
1beeffe4 | 109 | struct device *hwmon_dev; |
9a61bf63 | 110 | struct mutex update_lock; |
1da177e4 LT |
111 | char valid; /* zero until the following fields are valid */ |
112 | unsigned long last_updated; /* in jiffies */ | |
113 | ||
114 | u8 vid; | |
115 | u8 vrm; | |
116 | u8 in_input[5]; /* [0] = VVD */ | |
117 | u8 in_min[5]; /* [0] = VDD */ | |
118 | u8 in_max[5]; /* [0] = VDD */ | |
119 | u8 fan_input[2]; | |
120 | u8 fan_min[2]; | |
121 | u8 fan_div[2]; | |
122 | u8 fan_off; | |
123 | u8 temp_input[2]; | |
124 | u8 temp_max[2]; | |
125 | u8 temp_max_hyst[2]; | |
126 | u8 alarms; | |
127 | u8 beep_enable; | |
128 | u8 beep_mask; | |
129 | u8 alarm_mask; | |
130 | u8 two_temps; | |
131 | }; | |
132 | ||
133 | /* | |
134 | * Sysfs stuff | |
135 | */ | |
136 | ||
86d47f12 JD |
137 | static ssize_t get_cpu_vid(struct device *dev, struct device_attribute *attr, |
138 | char *buf) | |
1da177e4 | 139 | { |
86d47f12 | 140 | struct gl520_data *data = gl520_update_device(dev); |
1da177e4 LT |
141 | return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm)); |
142 | } | |
86d47f12 | 143 | static DEVICE_ATTR(cpu0_vid, S_IRUGO, get_cpu_vid, NULL); |
1da177e4 LT |
144 | |
145 | #define VDD_FROM_REG(val) (((val)*95+2)/4) | |
146 | #define VDD_TO_REG(val) (SENSORS_LIMIT((((val)*4+47)/95),0,255)) | |
147 | ||
148 | #define IN_FROM_REG(val) ((val)*19) | |
149 | #define IN_TO_REG(val) (SENSORS_LIMIT((((val)+9)/19),0,255)) | |
150 | ||
86d47f12 JD |
151 | static ssize_t get_in_input(struct device *dev, struct device_attribute *attr, |
152 | char *buf) | |
1da177e4 | 153 | { |
86d47f12 JD |
154 | int n = to_sensor_dev_attr(attr)->index; |
155 | struct gl520_data *data = gl520_update_device(dev); | |
1da177e4 LT |
156 | u8 r = data->in_input[n]; |
157 | ||
158 | if (n == 0) | |
159 | return sprintf(buf, "%d\n", VDD_FROM_REG(r)); | |
160 | else | |
161 | return sprintf(buf, "%d\n", IN_FROM_REG(r)); | |
162 | } | |
163 | ||
86d47f12 JD |
164 | static ssize_t get_in_min(struct device *dev, struct device_attribute *attr, |
165 | char *buf) | |
1da177e4 | 166 | { |
86d47f12 JD |
167 | int n = to_sensor_dev_attr(attr)->index; |
168 | struct gl520_data *data = gl520_update_device(dev); | |
1da177e4 LT |
169 | u8 r = data->in_min[n]; |
170 | ||
171 | if (n == 0) | |
172 | return sprintf(buf, "%d\n", VDD_FROM_REG(r)); | |
173 | else | |
174 | return sprintf(buf, "%d\n", IN_FROM_REG(r)); | |
175 | } | |
176 | ||
86d47f12 JD |
177 | static ssize_t get_in_max(struct device *dev, struct device_attribute *attr, |
178 | char *buf) | |
1da177e4 | 179 | { |
86d47f12 JD |
180 | int n = to_sensor_dev_attr(attr)->index; |
181 | struct gl520_data *data = gl520_update_device(dev); | |
1da177e4 LT |
182 | u8 r = data->in_max[n]; |
183 | ||
184 | if (n == 0) | |
185 | return sprintf(buf, "%d\n", VDD_FROM_REG(r)); | |
186 | else | |
187 | return sprintf(buf, "%d\n", IN_FROM_REG(r)); | |
188 | } | |
189 | ||
86d47f12 JD |
190 | static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, |
191 | const char *buf, size_t count) | |
1da177e4 | 192 | { |
86d47f12 JD |
193 | struct i2c_client *client = to_i2c_client(dev); |
194 | struct gl520_data *data = i2c_get_clientdata(client); | |
195 | int n = to_sensor_dev_attr(attr)->index; | |
1da177e4 LT |
196 | long v = simple_strtol(buf, NULL, 10); |
197 | u8 r; | |
198 | ||
9a61bf63 | 199 | mutex_lock(&data->update_lock); |
1da177e4 LT |
200 | |
201 | if (n == 0) | |
202 | r = VDD_TO_REG(v); | |
203 | else | |
204 | r = IN_TO_REG(v); | |
205 | ||
206 | data->in_min[n] = r; | |
207 | ||
208 | if (n < 4) | |
86d47f12 JD |
209 | gl520_write_value(client, GL520_REG_IN_MIN[n], |
210 | (gl520_read_value(client, GL520_REG_IN_MIN[n]) | |
211 | & ~0xff) | r); | |
1da177e4 | 212 | else |
86d47f12 | 213 | gl520_write_value(client, GL520_REG_IN_MIN[n], r); |
1da177e4 | 214 | |
9a61bf63 | 215 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
216 | return count; |
217 | } | |
218 | ||
86d47f12 JD |
219 | static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, |
220 | const char *buf, size_t count) | |
1da177e4 | 221 | { |
86d47f12 JD |
222 | struct i2c_client *client = to_i2c_client(dev); |
223 | struct gl520_data *data = i2c_get_clientdata(client); | |
224 | int n = to_sensor_dev_attr(attr)->index; | |
1da177e4 LT |
225 | long v = simple_strtol(buf, NULL, 10); |
226 | u8 r; | |
227 | ||
228 | if (n == 0) | |
229 | r = VDD_TO_REG(v); | |
230 | else | |
231 | r = IN_TO_REG(v); | |
232 | ||
9a61bf63 | 233 | mutex_lock(&data->update_lock); |
1da177e4 LT |
234 | |
235 | data->in_max[n] = r; | |
236 | ||
237 | if (n < 4) | |
86d47f12 JD |
238 | gl520_write_value(client, GL520_REG_IN_MAX[n], |
239 | (gl520_read_value(client, GL520_REG_IN_MAX[n]) | |
240 | & ~0xff00) | (r << 8)); | |
1da177e4 | 241 | else |
86d47f12 | 242 | gl520_write_value(client, GL520_REG_IN_MAX[n], r); |
1da177e4 | 243 | |
9a61bf63 | 244 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
245 | return count; |
246 | } | |
247 | ||
86d47f12 JD |
248 | static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, get_in_input, NULL, 0); |
249 | static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, get_in_input, NULL, 1); | |
250 | static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, get_in_input, NULL, 2); | |
251 | static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, get_in_input, NULL, 3); | |
252 | static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, get_in_input, NULL, 4); | |
253 | static SENSOR_DEVICE_ATTR(in0_min, S_IRUGO | S_IWUSR, | |
254 | get_in_min, set_in_min, 0); | |
255 | static SENSOR_DEVICE_ATTR(in1_min, S_IRUGO | S_IWUSR, | |
256 | get_in_min, set_in_min, 1); | |
257 | static SENSOR_DEVICE_ATTR(in2_min, S_IRUGO | S_IWUSR, | |
258 | get_in_min, set_in_min, 2); | |
259 | static SENSOR_DEVICE_ATTR(in3_min, S_IRUGO | S_IWUSR, | |
260 | get_in_min, set_in_min, 3); | |
261 | static SENSOR_DEVICE_ATTR(in4_min, S_IRUGO | S_IWUSR, | |
262 | get_in_min, set_in_min, 4); | |
263 | static SENSOR_DEVICE_ATTR(in0_max, S_IRUGO | S_IWUSR, | |
264 | get_in_max, set_in_max, 0); | |
265 | static SENSOR_DEVICE_ATTR(in1_max, S_IRUGO | S_IWUSR, | |
266 | get_in_max, set_in_max, 1); | |
267 | static SENSOR_DEVICE_ATTR(in2_max, S_IRUGO | S_IWUSR, | |
268 | get_in_max, set_in_max, 2); | |
269 | static SENSOR_DEVICE_ATTR(in3_max, S_IRUGO | S_IWUSR, | |
270 | get_in_max, set_in_max, 3); | |
271 | static SENSOR_DEVICE_ATTR(in4_max, S_IRUGO | S_IWUSR, | |
272 | get_in_max, set_in_max, 4); | |
273 | ||
1da177e4 LT |
274 | #define DIV_FROM_REG(val) (1 << (val)) |
275 | #define FAN_FROM_REG(val,div) ((val)==0 ? 0 : (480000/((val) << (div)))) | |
276 | #define FAN_TO_REG(val,div) ((val)<=0?0:SENSORS_LIMIT((480000 + ((val) << ((div)-1))) / ((val) << (div)), 1, 255)); | |
277 | ||
86d47f12 JD |
278 | static ssize_t get_fan_input(struct device *dev, struct device_attribute *attr, |
279 | char *buf) | |
1da177e4 | 280 | { |
86d47f12 JD |
281 | int n = to_sensor_dev_attr(attr)->index; |
282 | struct gl520_data *data = gl520_update_device(dev); | |
283 | ||
284 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_input[n], | |
285 | data->fan_div[n])); | |
1da177e4 LT |
286 | } |
287 | ||
86d47f12 JD |
288 | static ssize_t get_fan_min(struct device *dev, struct device_attribute *attr, |
289 | char *buf) | |
1da177e4 | 290 | { |
86d47f12 JD |
291 | int n = to_sensor_dev_attr(attr)->index; |
292 | struct gl520_data *data = gl520_update_device(dev); | |
293 | ||
294 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[n], | |
295 | data->fan_div[n])); | |
1da177e4 LT |
296 | } |
297 | ||
86d47f12 JD |
298 | static ssize_t get_fan_div(struct device *dev, struct device_attribute *attr, |
299 | char *buf) | |
1da177e4 | 300 | { |
86d47f12 JD |
301 | int n = to_sensor_dev_attr(attr)->index; |
302 | struct gl520_data *data = gl520_update_device(dev); | |
303 | ||
304 | return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[n])); | |
1da177e4 LT |
305 | } |
306 | ||
86d47f12 JD |
307 | static ssize_t get_fan_off(struct device *dev, struct device_attribute *attr, |
308 | char *buf) | |
1da177e4 | 309 | { |
86d47f12 | 310 | struct gl520_data *data = gl520_update_device(dev); |
1da177e4 LT |
311 | return sprintf(buf, "%d\n", data->fan_off); |
312 | } | |
313 | ||
86d47f12 JD |
314 | static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, |
315 | const char *buf, size_t count) | |
1da177e4 | 316 | { |
86d47f12 JD |
317 | struct i2c_client *client = to_i2c_client(dev); |
318 | struct gl520_data *data = i2c_get_clientdata(client); | |
319 | int n = to_sensor_dev_attr(attr)->index; | |
1da177e4 LT |
320 | unsigned long v = simple_strtoul(buf, NULL, 10); |
321 | u8 r; | |
322 | ||
9a61bf63 | 323 | mutex_lock(&data->update_lock); |
86d47f12 JD |
324 | r = FAN_TO_REG(v, data->fan_div[n]); |
325 | data->fan_min[n] = r; | |
1da177e4 | 326 | |
86d47f12 JD |
327 | if (n == 0) |
328 | gl520_write_value(client, GL520_REG_FAN_MIN, | |
329 | (gl520_read_value(client, GL520_REG_FAN_MIN) | |
330 | & ~0xff00) | (r << 8)); | |
1da177e4 | 331 | else |
86d47f12 JD |
332 | gl520_write_value(client, GL520_REG_FAN_MIN, |
333 | (gl520_read_value(client, GL520_REG_FAN_MIN) | |
334 | & ~0xff) | r); | |
1da177e4 LT |
335 | |
336 | data->beep_mask = gl520_read_value(client, GL520_REG_BEEP_MASK); | |
86d47f12 JD |
337 | if (data->fan_min[n] == 0) |
338 | data->alarm_mask &= (n == 0) ? ~0x20 : ~0x40; | |
1da177e4 | 339 | else |
86d47f12 | 340 | data->alarm_mask |= (n == 0) ? 0x20 : 0x40; |
1da177e4 LT |
341 | data->beep_mask &= data->alarm_mask; |
342 | gl520_write_value(client, GL520_REG_BEEP_MASK, data->beep_mask); | |
343 | ||
9a61bf63 | 344 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
345 | return count; |
346 | } | |
347 | ||
86d47f12 JD |
348 | static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, |
349 | const char *buf, size_t count) | |
1da177e4 | 350 | { |
86d47f12 JD |
351 | struct i2c_client *client = to_i2c_client(dev); |
352 | struct gl520_data *data = i2c_get_clientdata(client); | |
353 | int n = to_sensor_dev_attr(attr)->index; | |
1da177e4 LT |
354 | unsigned long v = simple_strtoul(buf, NULL, 10); |
355 | u8 r; | |
356 | ||
357 | switch (v) { | |
358 | case 1: r = 0; break; | |
359 | case 2: r = 1; break; | |
360 | case 4: r = 2; break; | |
361 | case 8: r = 3; break; | |
362 | default: | |
363 | dev_err(&client->dev, "fan_div value %ld not supported. Choose one of 1, 2, 4 or 8!\n", v); | |
364 | return -EINVAL; | |
365 | } | |
366 | ||
9a61bf63 | 367 | mutex_lock(&data->update_lock); |
86d47f12 | 368 | data->fan_div[n] = r; |
1da177e4 | 369 | |
86d47f12 JD |
370 | if (n == 0) |
371 | gl520_write_value(client, GL520_REG_FAN_DIV, | |
372 | (gl520_read_value(client, GL520_REG_FAN_DIV) | |
373 | & ~0xc0) | (r << 6)); | |
1da177e4 | 374 | else |
86d47f12 JD |
375 | gl520_write_value(client, GL520_REG_FAN_DIV, |
376 | (gl520_read_value(client, GL520_REG_FAN_DIV) | |
377 | & ~0x30) | (r << 4)); | |
1da177e4 | 378 | |
9a61bf63 | 379 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
380 | return count; |
381 | } | |
382 | ||
86d47f12 JD |
383 | static ssize_t set_fan_off(struct device *dev, struct device_attribute *attr, |
384 | const char *buf, size_t count) | |
1da177e4 | 385 | { |
86d47f12 JD |
386 | struct i2c_client *client = to_i2c_client(dev); |
387 | struct gl520_data *data = i2c_get_clientdata(client); | |
1da177e4 LT |
388 | u8 r = simple_strtoul(buf, NULL, 10)?1:0; |
389 | ||
9a61bf63 | 390 | mutex_lock(&data->update_lock); |
1da177e4 | 391 | data->fan_off = r; |
86d47f12 JD |
392 | gl520_write_value(client, GL520_REG_FAN_OFF, |
393 | (gl520_read_value(client, GL520_REG_FAN_OFF) | |
394 | & ~0x0c) | (r << 2)); | |
9a61bf63 | 395 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
396 | return count; |
397 | } | |
398 | ||
86d47f12 JD |
399 | static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, get_fan_input, NULL, 0); |
400 | static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, get_fan_input, NULL, 1); | |
401 | static SENSOR_DEVICE_ATTR(fan1_min, S_IRUGO | S_IWUSR, | |
402 | get_fan_min, set_fan_min, 0); | |
403 | static SENSOR_DEVICE_ATTR(fan2_min, S_IRUGO | S_IWUSR, | |
404 | get_fan_min, set_fan_min, 1); | |
405 | static SENSOR_DEVICE_ATTR(fan1_div, S_IRUGO | S_IWUSR, | |
406 | get_fan_div, set_fan_div, 0); | |
407 | static SENSOR_DEVICE_ATTR(fan2_div, S_IRUGO | S_IWUSR, | |
408 | get_fan_div, set_fan_div, 1); | |
409 | static DEVICE_ATTR(fan1_off, S_IRUGO | S_IWUSR, | |
410 | get_fan_off, set_fan_off); | |
411 | ||
1da177e4 LT |
412 | #define TEMP_FROM_REG(val) (((val) - 130) * 1000) |
413 | #define TEMP_TO_REG(val) (SENSORS_LIMIT(((((val)<0?(val)-500:(val)+500) / 1000)+130),0,255)) | |
414 | ||
86d47f12 JD |
415 | static ssize_t get_temp_input(struct device *dev, struct device_attribute *attr, |
416 | char *buf) | |
1da177e4 | 417 | { |
86d47f12 JD |
418 | int n = to_sensor_dev_attr(attr)->index; |
419 | struct gl520_data *data = gl520_update_device(dev); | |
420 | ||
421 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_input[n])); | |
1da177e4 LT |
422 | } |
423 | ||
86d47f12 JD |
424 | static ssize_t get_temp_max(struct device *dev, struct device_attribute *attr, |
425 | char *buf) | |
1da177e4 | 426 | { |
86d47f12 JD |
427 | int n = to_sensor_dev_attr(attr)->index; |
428 | struct gl520_data *data = gl520_update_device(dev); | |
429 | ||
430 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[n])); | |
1da177e4 LT |
431 | } |
432 | ||
86d47f12 JD |
433 | static ssize_t get_temp_max_hyst(struct device *dev, struct device_attribute |
434 | *attr, char *buf) | |
1da177e4 | 435 | { |
86d47f12 JD |
436 | int n = to_sensor_dev_attr(attr)->index; |
437 | struct gl520_data *data = gl520_update_device(dev); | |
438 | ||
439 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max_hyst[n])); | |
1da177e4 LT |
440 | } |
441 | ||
86d47f12 JD |
442 | static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, |
443 | const char *buf, size_t count) | |
1da177e4 | 444 | { |
86d47f12 JD |
445 | struct i2c_client *client = to_i2c_client(dev); |
446 | struct gl520_data *data = i2c_get_clientdata(client); | |
447 | int n = to_sensor_dev_attr(attr)->index; | |
1da177e4 LT |
448 | long v = simple_strtol(buf, NULL, 10); |
449 | ||
9a61bf63 | 450 | mutex_lock(&data->update_lock); |
86d47f12 JD |
451 | data->temp_max[n] = TEMP_TO_REG(v); |
452 | gl520_write_value(client, GL520_REG_TEMP_MAX[n], data->temp_max[n]); | |
9a61bf63 | 453 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
454 | return count; |
455 | } | |
456 | ||
86d47f12 JD |
457 | static ssize_t set_temp_max_hyst(struct device *dev, struct device_attribute |
458 | *attr, const char *buf, size_t count) | |
1da177e4 | 459 | { |
86d47f12 JD |
460 | struct i2c_client *client = to_i2c_client(dev); |
461 | struct gl520_data *data = i2c_get_clientdata(client); | |
462 | int n = to_sensor_dev_attr(attr)->index; | |
1da177e4 LT |
463 | long v = simple_strtol(buf, NULL, 10); |
464 | ||
9a61bf63 | 465 | mutex_lock(&data->update_lock); |
86d47f12 JD |
466 | data->temp_max_hyst[n] = TEMP_TO_REG(v); |
467 | gl520_write_value(client, GL520_REG_TEMP_MAX_HYST[n], | |
468 | data->temp_max_hyst[n]); | |
9a61bf63 | 469 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
470 | return count; |
471 | } | |
472 | ||
86d47f12 JD |
473 | static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, get_temp_input, NULL, 0); |
474 | static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, get_temp_input, NULL, 1); | |
475 | static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO | S_IWUSR, | |
476 | get_temp_max, set_temp_max, 0); | |
477 | static SENSOR_DEVICE_ATTR(temp2_max, S_IRUGO | S_IWUSR, | |
478 | get_temp_max, set_temp_max, 1); | |
479 | static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR, | |
480 | get_temp_max_hyst, set_temp_max_hyst, 0); | |
481 | static SENSOR_DEVICE_ATTR(temp2_max_hyst, S_IRUGO | S_IWUSR, | |
482 | get_temp_max_hyst, set_temp_max_hyst, 1); | |
483 | ||
484 | static ssize_t get_alarms(struct device *dev, struct device_attribute *attr, | |
485 | char *buf) | |
1da177e4 | 486 | { |
86d47f12 | 487 | struct gl520_data *data = gl520_update_device(dev); |
1da177e4 LT |
488 | return sprintf(buf, "%d\n", data->alarms); |
489 | } | |
490 | ||
86d47f12 JD |
491 | static ssize_t get_beep_enable(struct device *dev, struct device_attribute |
492 | *attr, char *buf) | |
1da177e4 | 493 | { |
86d47f12 | 494 | struct gl520_data *data = gl520_update_device(dev); |
1da177e4 LT |
495 | return sprintf(buf, "%d\n", data->beep_enable); |
496 | } | |
497 | ||
86d47f12 JD |
498 | static ssize_t get_beep_mask(struct device *dev, struct device_attribute *attr, |
499 | char *buf) | |
1da177e4 | 500 | { |
86d47f12 | 501 | struct gl520_data *data = gl520_update_device(dev); |
1da177e4 LT |
502 | return sprintf(buf, "%d\n", data->beep_mask); |
503 | } | |
504 | ||
86d47f12 JD |
505 | static ssize_t set_beep_enable(struct device *dev, struct device_attribute |
506 | *attr, const char *buf, size_t count) | |
1da177e4 | 507 | { |
86d47f12 JD |
508 | struct i2c_client *client = to_i2c_client(dev); |
509 | struct gl520_data *data = i2c_get_clientdata(client); | |
1da177e4 LT |
510 | u8 r = simple_strtoul(buf, NULL, 10)?0:1; |
511 | ||
9a61bf63 | 512 | mutex_lock(&data->update_lock); |
1da177e4 | 513 | data->beep_enable = !r; |
86d47f12 JD |
514 | gl520_write_value(client, GL520_REG_BEEP_ENABLE, |
515 | (gl520_read_value(client, GL520_REG_BEEP_ENABLE) | |
516 | & ~0x04) | (r << 2)); | |
9a61bf63 | 517 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
518 | return count; |
519 | } | |
520 | ||
86d47f12 JD |
521 | static ssize_t set_beep_mask(struct device *dev, struct device_attribute *attr, |
522 | const char *buf, size_t count) | |
1da177e4 | 523 | { |
86d47f12 JD |
524 | struct i2c_client *client = to_i2c_client(dev); |
525 | struct gl520_data *data = i2c_get_clientdata(client); | |
1da177e4 | 526 | u8 r = simple_strtoul(buf, NULL, 10); |
f28dc2f7 | 527 | |
9a61bf63 | 528 | mutex_lock(&data->update_lock); |
1da177e4 LT |
529 | r &= data->alarm_mask; |
530 | data->beep_mask = r; | |
86d47f12 | 531 | gl520_write_value(client, GL520_REG_BEEP_MASK, r); |
9a61bf63 | 532 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
533 | return count; |
534 | } | |
535 | ||
86d47f12 JD |
536 | static DEVICE_ATTR(alarms, S_IRUGO, get_alarms, NULL); |
537 | static DEVICE_ATTR(beep_enable, S_IRUGO | S_IWUSR, | |
538 | get_beep_enable, set_beep_enable); | |
539 | static DEVICE_ATTR(beep_mask, S_IRUGO | S_IWUSR, | |
540 | get_beep_mask, set_beep_mask); | |
541 | ||
e86a7760 JD |
542 | static ssize_t get_alarm(struct device *dev, struct device_attribute *attr, |
543 | char *buf) | |
544 | { | |
545 | int bit_nr = to_sensor_dev_attr(attr)->index; | |
546 | struct gl520_data *data = gl520_update_device(dev); | |
547 | ||
548 | return sprintf(buf, "%d\n", (data->alarms >> bit_nr) & 1); | |
549 | } | |
550 | ||
551 | static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, get_alarm, NULL, 0); | |
552 | static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, get_alarm, NULL, 1); | |
553 | static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, get_alarm, NULL, 2); | |
554 | static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, get_alarm, NULL, 3); | |
555 | static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, get_alarm, NULL, 4); | |
556 | static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, get_alarm, NULL, 5); | |
557 | static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, get_alarm, NULL, 6); | |
558 | static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, get_alarm, NULL, 7); | |
559 | static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, get_alarm, NULL, 7); | |
560 | ||
561 | static ssize_t get_beep(struct device *dev, struct device_attribute *attr, | |
562 | char *buf) | |
563 | { | |
564 | int bitnr = to_sensor_dev_attr(attr)->index; | |
565 | struct gl520_data *data = gl520_update_device(dev); | |
566 | ||
567 | return sprintf(buf, "%d\n", (data->beep_mask >> bitnr) & 1); | |
568 | } | |
569 | ||
570 | static ssize_t set_beep(struct device *dev, struct device_attribute *attr, | |
571 | const char *buf, size_t count) | |
572 | { | |
573 | struct i2c_client *client = to_i2c_client(dev); | |
574 | struct gl520_data *data = i2c_get_clientdata(client); | |
575 | int bitnr = to_sensor_dev_attr(attr)->index; | |
576 | unsigned long bit; | |
577 | ||
578 | bit = simple_strtoul(buf, NULL, 10); | |
579 | if (bit & ~1) | |
580 | return -EINVAL; | |
581 | ||
582 | mutex_lock(&data->update_lock); | |
583 | data->beep_mask = gl520_read_value(client, GL520_REG_BEEP_MASK); | |
584 | if (bit) | |
585 | data->beep_mask |= (1 << bitnr); | |
586 | else | |
587 | data->beep_mask &= ~(1 << bitnr); | |
588 | gl520_write_value(client, GL520_REG_BEEP_MASK, data->beep_mask); | |
589 | mutex_unlock(&data->update_lock); | |
590 | return count; | |
591 | } | |
592 | ||
593 | static SENSOR_DEVICE_ATTR(in0_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 0); | |
594 | static SENSOR_DEVICE_ATTR(in1_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 1); | |
595 | static SENSOR_DEVICE_ATTR(in2_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 2); | |
596 | static SENSOR_DEVICE_ATTR(in3_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 3); | |
597 | static SENSOR_DEVICE_ATTR(temp1_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 4); | |
598 | static SENSOR_DEVICE_ATTR(fan1_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 5); | |
599 | static SENSOR_DEVICE_ATTR(fan2_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 6); | |
600 | static SENSOR_DEVICE_ATTR(temp2_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 7); | |
601 | static SENSOR_DEVICE_ATTR(in4_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 7); | |
602 | ||
87808be4 JD |
603 | static struct attribute *gl520_attributes[] = { |
604 | &dev_attr_cpu0_vid.attr, | |
605 | ||
86d47f12 JD |
606 | &sensor_dev_attr_in0_input.dev_attr.attr, |
607 | &sensor_dev_attr_in0_min.dev_attr.attr, | |
608 | &sensor_dev_attr_in0_max.dev_attr.attr, | |
e86a7760 JD |
609 | &sensor_dev_attr_in0_alarm.dev_attr.attr, |
610 | &sensor_dev_attr_in0_beep.dev_attr.attr, | |
86d47f12 JD |
611 | &sensor_dev_attr_in1_input.dev_attr.attr, |
612 | &sensor_dev_attr_in1_min.dev_attr.attr, | |
613 | &sensor_dev_attr_in1_max.dev_attr.attr, | |
e86a7760 JD |
614 | &sensor_dev_attr_in1_alarm.dev_attr.attr, |
615 | &sensor_dev_attr_in1_beep.dev_attr.attr, | |
86d47f12 JD |
616 | &sensor_dev_attr_in2_input.dev_attr.attr, |
617 | &sensor_dev_attr_in2_min.dev_attr.attr, | |
618 | &sensor_dev_attr_in2_max.dev_attr.attr, | |
e86a7760 JD |
619 | &sensor_dev_attr_in2_alarm.dev_attr.attr, |
620 | &sensor_dev_attr_in2_beep.dev_attr.attr, | |
86d47f12 JD |
621 | &sensor_dev_attr_in3_input.dev_attr.attr, |
622 | &sensor_dev_attr_in3_min.dev_attr.attr, | |
623 | &sensor_dev_attr_in3_max.dev_attr.attr, | |
e86a7760 JD |
624 | &sensor_dev_attr_in3_alarm.dev_attr.attr, |
625 | &sensor_dev_attr_in3_beep.dev_attr.attr, | |
86d47f12 JD |
626 | |
627 | &sensor_dev_attr_fan1_input.dev_attr.attr, | |
628 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
629 | &sensor_dev_attr_fan1_div.dev_attr.attr, | |
e86a7760 JD |
630 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
631 | &sensor_dev_attr_fan1_beep.dev_attr.attr, | |
87808be4 | 632 | &dev_attr_fan1_off.attr, |
86d47f12 JD |
633 | &sensor_dev_attr_fan2_input.dev_attr.attr, |
634 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
635 | &sensor_dev_attr_fan2_div.dev_attr.attr, | |
e86a7760 JD |
636 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, |
637 | &sensor_dev_attr_fan2_beep.dev_attr.attr, | |
87808be4 | 638 | |
86d47f12 JD |
639 | &sensor_dev_attr_temp1_input.dev_attr.attr, |
640 | &sensor_dev_attr_temp1_max.dev_attr.attr, | |
641 | &sensor_dev_attr_temp1_max_hyst.dev_attr.attr, | |
e86a7760 JD |
642 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, |
643 | &sensor_dev_attr_temp1_beep.dev_attr.attr, | |
87808be4 JD |
644 | |
645 | &dev_attr_alarms.attr, | |
646 | &dev_attr_beep_enable.attr, | |
647 | &dev_attr_beep_mask.attr, | |
648 | NULL | |
649 | }; | |
650 | ||
651 | static const struct attribute_group gl520_group = { | |
652 | .attrs = gl520_attributes, | |
653 | }; | |
654 | ||
655 | static struct attribute *gl520_attributes_opt[] = { | |
86d47f12 JD |
656 | &sensor_dev_attr_in4_input.dev_attr.attr, |
657 | &sensor_dev_attr_in4_min.dev_attr.attr, | |
658 | &sensor_dev_attr_in4_max.dev_attr.attr, | |
e86a7760 JD |
659 | &sensor_dev_attr_in4_alarm.dev_attr.attr, |
660 | &sensor_dev_attr_in4_beep.dev_attr.attr, | |
87808be4 | 661 | |
86d47f12 JD |
662 | &sensor_dev_attr_temp2_input.dev_attr.attr, |
663 | &sensor_dev_attr_temp2_max.dev_attr.attr, | |
664 | &sensor_dev_attr_temp2_max_hyst.dev_attr.attr, | |
e86a7760 JD |
665 | &sensor_dev_attr_temp2_alarm.dev_attr.attr, |
666 | &sensor_dev_attr_temp2_beep.dev_attr.attr, | |
87808be4 JD |
667 | NULL |
668 | }; | |
669 | ||
670 | static const struct attribute_group gl520_group_opt = { | |
671 | .attrs = gl520_attributes_opt, | |
672 | }; | |
673 | ||
1da177e4 LT |
674 | |
675 | /* | |
676 | * Real code | |
677 | */ | |
678 | ||
a23a9fe1 | 679 | /* Return 0 if detection is successful, -ENODEV otherwise */ |
310ec792 | 680 | static int gl520_detect(struct i2c_client *client, struct i2c_board_info *info) |
1da177e4 | 681 | { |
a23a9fe1 | 682 | struct i2c_adapter *adapter = client->adapter; |
1da177e4 LT |
683 | |
684 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA | | |
685 | I2C_FUNC_SMBUS_WORD_DATA)) | |
a23a9fe1 | 686 | return -ENODEV; |
1da177e4 LT |
687 | |
688 | /* Determine the chip type. */ | |
52df6440 JD |
689 | if ((gl520_read_value(client, GL520_REG_CHIP_ID) != 0x20) || |
690 | ((gl520_read_value(client, GL520_REG_REVISION) & 0x7f) != 0x00) || | |
691 | ((gl520_read_value(client, GL520_REG_CONF) & 0x80) != 0x00)) { | |
692 | dev_dbg(&client->dev, "Unknown chip type, skipping\n"); | |
693 | return -ENODEV; | |
1da177e4 LT |
694 | } |
695 | ||
a23a9fe1 | 696 | strlcpy(info->type, "gl520sm", I2C_NAME_SIZE); |
1da177e4 | 697 | |
a23a9fe1 JD |
698 | return 0; |
699 | } | |
700 | ||
701 | static int gl520_probe(struct i2c_client *client, | |
702 | const struct i2c_device_id *id) | |
703 | { | |
704 | struct gl520_data *data; | |
705 | int err; | |
706 | ||
707 | data = kzalloc(sizeof(struct gl520_data), GFP_KERNEL); | |
708 | if (!data) { | |
709 | err = -ENOMEM; | |
710 | goto exit; | |
711 | } | |
712 | ||
713 | i2c_set_clientdata(client, data); | |
714 | mutex_init(&data->update_lock); | |
1da177e4 LT |
715 | |
716 | /* Initialize the GL520SM chip */ | |
f28dc2f7 | 717 | gl520_init_client(client); |
1da177e4 LT |
718 | |
719 | /* Register sysfs hooks */ | |
f28dc2f7 | 720 | if ((err = sysfs_create_group(&client->dev.kobj, &gl520_group))) |
a23a9fe1 | 721 | goto exit_free; |
1da177e4 | 722 | |
87808be4 | 723 | if (data->two_temps) { |
f28dc2f7 | 724 | if ((err = device_create_file(&client->dev, |
86d47f12 | 725 | &sensor_dev_attr_temp2_input.dev_attr)) |
f28dc2f7 | 726 | || (err = device_create_file(&client->dev, |
86d47f12 | 727 | &sensor_dev_attr_temp2_max.dev_attr)) |
f28dc2f7 | 728 | || (err = device_create_file(&client->dev, |
e86a7760 JD |
729 | &sensor_dev_attr_temp2_max_hyst.dev_attr)) |
730 | || (err = device_create_file(&client->dev, | |
731 | &sensor_dev_attr_temp2_alarm.dev_attr)) | |
732 | || (err = device_create_file(&client->dev, | |
733 | &sensor_dev_attr_temp2_beep.dev_attr))) | |
87808be4 JD |
734 | goto exit_remove_files; |
735 | } else { | |
f28dc2f7 | 736 | if ((err = device_create_file(&client->dev, |
86d47f12 | 737 | &sensor_dev_attr_in4_input.dev_attr)) |
f28dc2f7 | 738 | || (err = device_create_file(&client->dev, |
86d47f12 | 739 | &sensor_dev_attr_in4_min.dev_attr)) |
f28dc2f7 | 740 | || (err = device_create_file(&client->dev, |
e86a7760 JD |
741 | &sensor_dev_attr_in4_max.dev_attr)) |
742 | || (err = device_create_file(&client->dev, | |
743 | &sensor_dev_attr_in4_alarm.dev_attr)) | |
744 | || (err = device_create_file(&client->dev, | |
745 | &sensor_dev_attr_in4_beep.dev_attr))) | |
87808be4 JD |
746 | goto exit_remove_files; |
747 | } | |
1da177e4 | 748 | |
1da177e4 | 749 | |
f28dc2f7 | 750 | data->hwmon_dev = hwmon_device_register(&client->dev); |
1beeffe4 TJ |
751 | if (IS_ERR(data->hwmon_dev)) { |
752 | err = PTR_ERR(data->hwmon_dev); | |
87808be4 JD |
753 | goto exit_remove_files; |
754 | } | |
1da177e4 LT |
755 | |
756 | return 0; | |
757 | ||
87808be4 | 758 | exit_remove_files: |
f28dc2f7 JD |
759 | sysfs_remove_group(&client->dev.kobj, &gl520_group); |
760 | sysfs_remove_group(&client->dev.kobj, &gl520_group_opt); | |
1da177e4 LT |
761 | exit_free: |
762 | kfree(data); | |
763 | exit: | |
764 | return err; | |
765 | } | |
766 | ||
767 | ||
768 | /* Called when we have found a new GL520SM. */ | |
769 | static void gl520_init_client(struct i2c_client *client) | |
770 | { | |
771 | struct gl520_data *data = i2c_get_clientdata(client); | |
772 | u8 oldconf, conf; | |
773 | ||
774 | conf = oldconf = gl520_read_value(client, GL520_REG_CONF); | |
775 | ||
776 | data->alarm_mask = 0xff; | |
303760b4 | 777 | data->vrm = vid_which_vrm(); |
1da177e4 LT |
778 | |
779 | if (extra_sensor_type == 1) | |
780 | conf &= ~0x10; | |
781 | else if (extra_sensor_type == 2) | |
782 | conf |= 0x10; | |
783 | data->two_temps = !(conf & 0x10); | |
784 | ||
785 | /* If IRQ# is disabled, we can safely force comparator mode */ | |
786 | if (!(conf & 0x20)) | |
787 | conf &= 0xf7; | |
788 | ||
789 | /* Enable monitoring if needed */ | |
790 | conf |= 0x40; | |
791 | ||
792 | if (conf != oldconf) | |
793 | gl520_write_value(client, GL520_REG_CONF, conf); | |
794 | ||
795 | gl520_update_device(&(client->dev)); | |
796 | ||
797 | if (data->fan_min[0] == 0) | |
798 | data->alarm_mask &= ~0x20; | |
799 | if (data->fan_min[1] == 0) | |
800 | data->alarm_mask &= ~0x40; | |
801 | ||
802 | data->beep_mask &= data->alarm_mask; | |
803 | gl520_write_value(client, GL520_REG_BEEP_MASK, data->beep_mask); | |
804 | } | |
805 | ||
a23a9fe1 | 806 | static int gl520_remove(struct i2c_client *client) |
1da177e4 | 807 | { |
943b0830 | 808 | struct gl520_data *data = i2c_get_clientdata(client); |
1da177e4 | 809 | |
1beeffe4 | 810 | hwmon_device_unregister(data->hwmon_dev); |
87808be4 JD |
811 | sysfs_remove_group(&client->dev.kobj, &gl520_group); |
812 | sysfs_remove_group(&client->dev.kobj, &gl520_group_opt); | |
943b0830 | 813 | |
943b0830 | 814 | kfree(data); |
1da177e4 LT |
815 | return 0; |
816 | } | |
817 | ||
818 | ||
f28dc2f7 | 819 | /* Registers 0x07 to 0x0c are word-sized, others are byte-sized |
1da177e4 LT |
820 | GL520 uses a high-byte first convention */ |
821 | static int gl520_read_value(struct i2c_client *client, u8 reg) | |
822 | { | |
823 | if ((reg >= 0x07) && (reg <= 0x0c)) | |
824 | return swab16(i2c_smbus_read_word_data(client, reg)); | |
825 | else | |
826 | return i2c_smbus_read_byte_data(client, reg); | |
827 | } | |
828 | ||
829 | static int gl520_write_value(struct i2c_client *client, u8 reg, u16 value) | |
830 | { | |
831 | if ((reg >= 0x07) && (reg <= 0x0c)) | |
832 | return i2c_smbus_write_word_data(client, reg, swab16(value)); | |
833 | else | |
834 | return i2c_smbus_write_byte_data(client, reg, value); | |
835 | } | |
836 | ||
837 | ||
838 | static struct gl520_data *gl520_update_device(struct device *dev) | |
839 | { | |
840 | struct i2c_client *client = to_i2c_client(dev); | |
841 | struct gl520_data *data = i2c_get_clientdata(client); | |
8b4b0ab4 | 842 | int val, i; |
1da177e4 | 843 | |
9a61bf63 | 844 | mutex_lock(&data->update_lock); |
1da177e4 | 845 | |
0cacdf29 | 846 | if (time_after(jiffies, data->last_updated + 2 * HZ) || !data->valid) { |
1da177e4 LT |
847 | |
848 | dev_dbg(&client->dev, "Starting gl520sm update\n"); | |
849 | ||
850 | data->alarms = gl520_read_value(client, GL520_REG_ALARMS); | |
851 | data->beep_mask = gl520_read_value(client, GL520_REG_BEEP_MASK); | |
852 | data->vid = gl520_read_value(client, GL520_REG_VID_INPUT) & 0x1f; | |
853 | ||
8b4b0ab4 JD |
854 | for (i = 0; i < 4; i++) { |
855 | data->in_input[i] = gl520_read_value(client, | |
856 | GL520_REG_IN_INPUT[i]); | |
857 | val = gl520_read_value(client, GL520_REG_IN_LIMIT[i]); | |
858 | data->in_min[i] = val & 0xff; | |
859 | data->in_max[i] = (val >> 8) & 0xff; | |
860 | } | |
1da177e4 LT |
861 | |
862 | val = gl520_read_value(client, GL520_REG_FAN_INPUT); | |
863 | data->fan_input[0] = (val >> 8) & 0xff; | |
864 | data->fan_input[1] = val & 0xff; | |
865 | ||
866 | val = gl520_read_value(client, GL520_REG_FAN_MIN); | |
867 | data->fan_min[0] = (val >> 8) & 0xff; | |
868 | data->fan_min[1] = val & 0xff; | |
869 | ||
8b4b0ab4 JD |
870 | data->temp_input[0] = gl520_read_value(client, |
871 | GL520_REG_TEMP_INPUT[0]); | |
872 | data->temp_max[0] = gl520_read_value(client, | |
873 | GL520_REG_TEMP_MAX[0]); | |
874 | data->temp_max_hyst[0] = gl520_read_value(client, | |
875 | GL520_REG_TEMP_MAX_HYST[0]); | |
1da177e4 LT |
876 | |
877 | val = gl520_read_value(client, GL520_REG_FAN_DIV); | |
878 | data->fan_div[0] = (val >> 6) & 0x03; | |
879 | data->fan_div[1] = (val >> 4) & 0x03; | |
880 | data->fan_off = (val >> 2) & 0x01; | |
881 | ||
882 | data->alarms &= data->alarm_mask; | |
883 | ||
884 | val = gl520_read_value(client, GL520_REG_CONF); | |
885 | data->beep_enable = !((val >> 2) & 1); | |
886 | ||
1da177e4 LT |
887 | /* Temp1 and Vin4 are the same input */ |
888 | if (data->two_temps) { | |
8b4b0ab4 JD |
889 | data->temp_input[1] = gl520_read_value(client, |
890 | GL520_REG_TEMP_INPUT[1]); | |
891 | data->temp_max[1] = gl520_read_value(client, | |
892 | GL520_REG_TEMP_MAX[1]); | |
893 | data->temp_max_hyst[1] = gl520_read_value(client, | |
894 | GL520_REG_TEMP_MAX_HYST[1]); | |
1da177e4 | 895 | } else { |
8b4b0ab4 JD |
896 | data->in_input[4] = gl520_read_value(client, |
897 | GL520_REG_IN_INPUT[4]); | |
898 | data->in_min[4] = gl520_read_value(client, | |
899 | GL520_REG_IN_MIN[4]); | |
900 | data->in_max[4] = gl520_read_value(client, | |
901 | GL520_REG_IN_MAX[4]); | |
1da177e4 LT |
902 | } |
903 | ||
904 | data->last_updated = jiffies; | |
905 | data->valid = 1; | |
906 | } | |
907 | ||
9a61bf63 | 908 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
909 | |
910 | return data; | |
911 | } | |
912 | ||
913 | ||
914 | static int __init sensors_gl520sm_init(void) | |
915 | { | |
916 | return i2c_add_driver(&gl520_driver); | |
917 | } | |
918 | ||
919 | static void __exit sensors_gl520sm_exit(void) | |
920 | { | |
921 | i2c_del_driver(&gl520_driver); | |
922 | } | |
923 | ||
924 | ||
925 | MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, " | |
96de0e25 | 926 | "Kyösti Mälkki <kmalkki@cc.hut.fi>, " |
1da177e4 LT |
927 | "Maarten Deprez <maartendeprez@users.sourceforge.net>"); |
928 | MODULE_DESCRIPTION("GL520SM driver"); | |
929 | MODULE_LICENSE("GPL"); | |
930 | ||
931 | module_init(sensors_gl520sm_init); | |
932 | module_exit(sensors_gl520sm_exit); |