Commit | Line | Data |
---|---|---|
6f9703d0 DW |
1 | /* |
2 | * A hwmon driver for the Analog Devices ADT7470 | |
3 | * Copyright (C) 2007 IBM | |
4 | * | |
5407e051 | 5 | * Author: Darrick J. Wong <darrick.wong@oracle.com> |
6f9703d0 DW |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
20 | */ | |
21 | ||
2e991201 JP |
22 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
23 | ||
6f9703d0 DW |
24 | #include <linux/module.h> |
25 | #include <linux/jiffies.h> | |
26 | #include <linux/i2c.h> | |
27 | #include <linux/hwmon.h> | |
28 | #include <linux/hwmon-sysfs.h> | |
29 | #include <linux/err.h> | |
30 | #include <linux/mutex.h> | |
31 | #include <linux/delay.h> | |
32 | #include <linux/log2.h> | |
89fac11c | 33 | #include <linux/kthread.h> |
5a0e3ad6 | 34 | #include <linux/slab.h> |
aa18cc91 | 35 | #include <linux/util_macros.h> |
6f9703d0 DW |
36 | |
37 | /* Addresses to scan */ | |
25e9c86d | 38 | static const unsigned short normal_i2c[] = { 0x2C, 0x2E, 0x2F, I2C_CLIENT_END }; |
6f9703d0 | 39 | |
6f9703d0 DW |
40 | /* ADT7470 registers */ |
41 | #define ADT7470_REG_BASE_ADDR 0x20 | |
42 | #define ADT7470_REG_TEMP_BASE_ADDR 0x20 | |
43 | #define ADT7470_REG_TEMP_MAX_ADDR 0x29 | |
44 | #define ADT7470_REG_FAN_BASE_ADDR 0x2A | |
45 | #define ADT7470_REG_FAN_MAX_ADDR 0x31 | |
46 | #define ADT7470_REG_PWM_BASE_ADDR 0x32 | |
47 | #define ADT7470_REG_PWM_MAX_ADDR 0x35 | |
48 | #define ADT7470_REG_PWM_MAX_BASE_ADDR 0x38 | |
49 | #define ADT7470_REG_PWM_MAX_MAX_ADDR 0x3B | |
50 | #define ADT7470_REG_CFG 0x40 | |
51 | #define ADT7470_FSPD_MASK 0x04 | |
52 | #define ADT7470_REG_ALARM1 0x41 | |
fe03f28c DW |
53 | #define ADT7470_R1T_ALARM 0x01 |
54 | #define ADT7470_R2T_ALARM 0x02 | |
55 | #define ADT7470_R3T_ALARM 0x04 | |
56 | #define ADT7470_R4T_ALARM 0x08 | |
57 | #define ADT7470_R5T_ALARM 0x10 | |
58 | #define ADT7470_R6T_ALARM 0x20 | |
59 | #define ADT7470_R7T_ALARM 0x40 | |
60 | #define ADT7470_OOL_ALARM 0x80 | |
6f9703d0 | 61 | #define ADT7470_REG_ALARM2 0x42 |
fe03f28c DW |
62 | #define ADT7470_R8T_ALARM 0x01 |
63 | #define ADT7470_R9T_ALARM 0x02 | |
64 | #define ADT7470_R10T_ALARM 0x04 | |
65 | #define ADT7470_FAN1_ALARM 0x10 | |
66 | #define ADT7470_FAN2_ALARM 0x20 | |
67 | #define ADT7470_FAN3_ALARM 0x40 | |
68 | #define ADT7470_FAN4_ALARM 0x80 | |
6f9703d0 DW |
69 | #define ADT7470_REG_TEMP_LIMITS_BASE_ADDR 0x44 |
70 | #define ADT7470_REG_TEMP_LIMITS_MAX_ADDR 0x57 | |
71 | #define ADT7470_REG_FAN_MIN_BASE_ADDR 0x58 | |
72 | #define ADT7470_REG_FAN_MIN_MAX_ADDR 0x5F | |
73 | #define ADT7470_REG_FAN_MAX_BASE_ADDR 0x60 | |
74 | #define ADT7470_REG_FAN_MAX_MAX_ADDR 0x67 | |
75 | #define ADT7470_REG_PWM_CFG_BASE_ADDR 0x68 | |
76 | #define ADT7470_REG_PWM12_CFG 0x68 | |
77 | #define ADT7470_PWM2_AUTO_MASK 0x40 | |
78 | #define ADT7470_PWM1_AUTO_MASK 0x80 | |
2e75a4b7 | 79 | #define ADT7470_PWM_AUTO_MASK 0xC0 |
6f9703d0 DW |
80 | #define ADT7470_REG_PWM34_CFG 0x69 |
81 | #define ADT7470_PWM3_AUTO_MASK 0x40 | |
82 | #define ADT7470_PWM4_AUTO_MASK 0x80 | |
83 | #define ADT7470_REG_PWM_MIN_BASE_ADDR 0x6A | |
84 | #define ADT7470_REG_PWM_MIN_MAX_ADDR 0x6D | |
85 | #define ADT7470_REG_PWM_TEMP_MIN_BASE_ADDR 0x6E | |
86 | #define ADT7470_REG_PWM_TEMP_MIN_MAX_ADDR 0x71 | |
aa18cc91 | 87 | #define ADT7470_REG_CFG_2 0x74 |
6f9703d0 DW |
88 | #define ADT7470_REG_ACOUSTICS12 0x75 |
89 | #define ADT7470_REG_ACOUSTICS34 0x76 | |
90 | #define ADT7470_REG_DEVICE 0x3D | |
91 | #define ADT7470_REG_VENDOR 0x3E | |
92 | #define ADT7470_REG_REVISION 0x3F | |
93 | #define ADT7470_REG_ALARM1_MASK 0x72 | |
94 | #define ADT7470_REG_ALARM2_MASK 0x73 | |
95 | #define ADT7470_REG_PWM_AUTO_TEMP_BASE_ADDR 0x7C | |
96 | #define ADT7470_REG_PWM_AUTO_TEMP_MAX_ADDR 0x7D | |
97 | #define ADT7470_REG_MAX_ADDR 0x81 | |
98 | ||
99 | #define ADT7470_TEMP_COUNT 10 | |
100 | #define ADT7470_TEMP_REG(x) (ADT7470_REG_TEMP_BASE_ADDR + (x)) | |
101 | #define ADT7470_TEMP_MIN_REG(x) (ADT7470_REG_TEMP_LIMITS_BASE_ADDR + ((x) * 2)) | |
102 | #define ADT7470_TEMP_MAX_REG(x) (ADT7470_REG_TEMP_LIMITS_BASE_ADDR + \ | |
103 | ((x) * 2) + 1) | |
104 | ||
105 | #define ADT7470_FAN_COUNT 4 | |
106 | #define ADT7470_REG_FAN(x) (ADT7470_REG_FAN_BASE_ADDR + ((x) * 2)) | |
107 | #define ADT7470_REG_FAN_MIN(x) (ADT7470_REG_FAN_MIN_BASE_ADDR + ((x) * 2)) | |
108 | #define ADT7470_REG_FAN_MAX(x) (ADT7470_REG_FAN_MAX_BASE_ADDR + ((x) * 2)) | |
109 | ||
110 | #define ADT7470_PWM_COUNT 4 | |
111 | #define ADT7470_REG_PWM(x) (ADT7470_REG_PWM_BASE_ADDR + (x)) | |
112 | #define ADT7470_REG_PWM_MAX(x) (ADT7470_REG_PWM_MAX_BASE_ADDR + (x)) | |
113 | #define ADT7470_REG_PWM_MIN(x) (ADT7470_REG_PWM_MIN_BASE_ADDR + (x)) | |
114 | #define ADT7470_REG_PWM_TMIN(x) (ADT7470_REG_PWM_TEMP_MIN_BASE_ADDR + (x)) | |
115 | #define ADT7470_REG_PWM_CFG(x) (ADT7470_REG_PWM_CFG_BASE_ADDR + ((x) / 2)) | |
116 | #define ADT7470_REG_PWM_AUTO_TEMP(x) (ADT7470_REG_PWM_AUTO_TEMP_BASE_ADDR + \ | |
117 | ((x) / 2)) | |
118 | ||
fe03f28c DW |
119 | #define ALARM2(x) ((x) << 8) |
120 | ||
6f9703d0 DW |
121 | #define ADT7470_VENDOR 0x41 |
122 | #define ADT7470_DEVICE 0x70 | |
123 | /* datasheet only mentions a revision 2 */ | |
124 | #define ADT7470_REVISION 0x02 | |
125 | ||
126 | /* "all temps" according to hwmon sysfs interface spec */ | |
127 | #define ADT7470_PWM_ALL_TEMPS 0x3FF | |
128 | ||
129 | /* How often do we reread sensors values? (In jiffies) */ | |
130 | #define SENSOR_REFRESH_INTERVAL (5 * HZ) | |
131 | ||
132 | /* How often do we reread sensor limit values? (In jiffies) */ | |
133 | #define LIMIT_REFRESH_INTERVAL (60 * HZ) | |
134 | ||
2f22d5df DW |
135 | /* Wait at least 200ms per sensor for 10 sensors */ |
136 | #define TEMP_COLLECTION_TIME 2000 | |
6f9703d0 | 137 | |
89fac11c DW |
138 | /* auto update thing won't fire more than every 2s */ |
139 | #define AUTO_UPDATE_INTERVAL 2000 | |
140 | ||
6f9703d0 DW |
141 | /* datasheet says to divide this number by the fan reading to get fan rpm */ |
142 | #define FAN_PERIOD_TO_RPM(x) ((90000 * 60) / (x)) | |
143 | #define FAN_RPM_TO_PERIOD FAN_PERIOD_TO_RPM | |
144 | #define FAN_PERIOD_INVALID 65535 | |
145 | #define FAN_DATA_VALID(x) ((x) && (x) != FAN_PERIOD_INVALID) | |
146 | ||
aa18cc91 JS |
147 | /* Config registers 1 and 2 include fields for selecting the PWM frequency */ |
148 | #define ADT7470_CFG_LF 0x40 | |
149 | #define ADT7470_FREQ_MASK 0x70 | |
150 | #define ADT7470_FREQ_SHIFT 4 | |
151 | ||
6f9703d0 | 152 | struct adt7470_data { |
30485776 | 153 | struct i2c_client *client; |
6f9703d0 DW |
154 | struct mutex lock; |
155 | char sensors_valid; | |
156 | char limits_valid; | |
157 | unsigned long sensors_last_updated; /* In jiffies */ | |
158 | unsigned long limits_last_updated; /* In jiffies */ | |
159 | ||
2f22d5df | 160 | int num_temp_sensors; /* -1 = probe */ |
89fac11c | 161 | int temperatures_probed; |
2f22d5df | 162 | |
6f9703d0 DW |
163 | s8 temp[ADT7470_TEMP_COUNT]; |
164 | s8 temp_min[ADT7470_TEMP_COUNT]; | |
165 | s8 temp_max[ADT7470_TEMP_COUNT]; | |
166 | u16 fan[ADT7470_FAN_COUNT]; | |
167 | u16 fan_min[ADT7470_FAN_COUNT]; | |
168 | u16 fan_max[ADT7470_FAN_COUNT]; | |
fe03f28c DW |
169 | u16 alarm; |
170 | u16 alarms_mask; | |
6f9703d0 DW |
171 | u8 force_pwm_max; |
172 | u8 pwm[ADT7470_PWM_COUNT]; | |
173 | u8 pwm_max[ADT7470_PWM_COUNT]; | |
174 | u8 pwm_automatic[ADT7470_PWM_COUNT]; | |
175 | u8 pwm_min[ADT7470_PWM_COUNT]; | |
176 | s8 pwm_tmin[ADT7470_PWM_COUNT]; | |
177 | u8 pwm_auto_temp[ADT7470_PWM_COUNT]; | |
89fac11c DW |
178 | |
179 | struct task_struct *auto_update; | |
180 | struct completion auto_update_stop; | |
181 | unsigned int auto_update_interval; | |
6f9703d0 DW |
182 | }; |
183 | ||
6f9703d0 DW |
184 | /* |
185 | * 16-bit registers on the ADT7470 are low-byte first. The data sheet says | |
186 | * that the low byte must be read before the high byte. | |
187 | */ | |
188 | static inline int adt7470_read_word_data(struct i2c_client *client, u8 reg) | |
189 | { | |
190 | u16 foo; | |
191 | foo = i2c_smbus_read_byte_data(client, reg); | |
192 | foo |= ((u16)i2c_smbus_read_byte_data(client, reg + 1) << 8); | |
193 | return foo; | |
194 | } | |
195 | ||
196 | static inline int adt7470_write_word_data(struct i2c_client *client, u8 reg, | |
197 | u16 value) | |
198 | { | |
199 | return i2c_smbus_write_byte_data(client, reg, value & 0xFF) | |
93d783bc | 200 | || i2c_smbus_write_byte_data(client, reg + 1, value >> 8); |
6f9703d0 DW |
201 | } |
202 | ||
89fac11c DW |
203 | /* Probe for temperature sensors. Assumes lock is held */ |
204 | static int adt7470_read_temperatures(struct i2c_client *client, | |
205 | struct adt7470_data *data) | |
6f9703d0 | 206 | { |
89fac11c | 207 | unsigned long res; |
6f9703d0 | 208 | int i; |
89fac11c | 209 | u8 cfg, pwm[4], pwm_cfg[2]; |
6f9703d0 | 210 | |
2e75a4b7 DW |
211 | /* save pwm[1-4] config register */ |
212 | pwm_cfg[0] = i2c_smbus_read_byte_data(client, ADT7470_REG_PWM_CFG(0)); | |
213 | pwm_cfg[1] = i2c_smbus_read_byte_data(client, ADT7470_REG_PWM_CFG(2)); | |
214 | ||
215 | /* set manual pwm to whatever it is set to now */ | |
216 | for (i = 0; i < ADT7470_FAN_COUNT; i++) | |
217 | pwm[i] = i2c_smbus_read_byte_data(client, ADT7470_REG_PWM(i)); | |
218 | ||
219 | /* put pwm in manual mode */ | |
220 | i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_CFG(0), | |
221 | pwm_cfg[0] & ~(ADT7470_PWM_AUTO_MASK)); | |
222 | i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_CFG(2), | |
223 | pwm_cfg[1] & ~(ADT7470_PWM_AUTO_MASK)); | |
224 | ||
225 | /* write pwm control to whatever it was */ | |
226 | for (i = 0; i < ADT7470_FAN_COUNT; i++) | |
227 | i2c_smbus_write_byte_data(client, ADT7470_REG_PWM(i), pwm[i]); | |
228 | ||
6f9703d0 DW |
229 | /* start reading temperature sensors */ |
230 | cfg = i2c_smbus_read_byte_data(client, ADT7470_REG_CFG); | |
231 | cfg |= 0x80; | |
232 | i2c_smbus_write_byte_data(client, ADT7470_REG_CFG, cfg); | |
233 | ||
2f22d5df | 234 | /* Delay is 200ms * number of temp sensors. */ |
89fac11c DW |
235 | res = msleep_interruptible((data->num_temp_sensors >= 0 ? |
236 | data->num_temp_sensors * 200 : | |
237 | TEMP_COLLECTION_TIME)); | |
6f9703d0 DW |
238 | |
239 | /* done reading temperature sensors */ | |
240 | cfg = i2c_smbus_read_byte_data(client, ADT7470_REG_CFG); | |
241 | cfg &= ~0x80; | |
242 | i2c_smbus_write_byte_data(client, ADT7470_REG_CFG, cfg); | |
243 | ||
2e75a4b7 DW |
244 | /* restore pwm[1-4] config registers */ |
245 | i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_CFG(0), pwm_cfg[0]); | |
246 | i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_CFG(2), pwm_cfg[1]); | |
247 | ||
89fac11c | 248 | if (res) { |
2e991201 | 249 | pr_err("ha ha, interrupted\n"); |
89fac11c DW |
250 | return -EAGAIN; |
251 | } | |
252 | ||
253 | /* Only count fans if we have to */ | |
254 | if (data->num_temp_sensors >= 0) | |
255 | return 0; | |
256 | ||
257 | for (i = 0; i < ADT7470_TEMP_COUNT; i++) { | |
6f9703d0 DW |
258 | data->temp[i] = i2c_smbus_read_byte_data(client, |
259 | ADT7470_TEMP_REG(i)); | |
89fac11c DW |
260 | if (data->temp[i]) |
261 | data->num_temp_sensors = i + 1; | |
262 | } | |
263 | data->temperatures_probed = 1; | |
264 | return 0; | |
265 | } | |
6f9703d0 | 266 | |
89fac11c DW |
267 | static int adt7470_update_thread(void *p) |
268 | { | |
269 | struct i2c_client *client = p; | |
270 | struct adt7470_data *data = i2c_get_clientdata(client); | |
271 | ||
272 | while (!kthread_should_stop()) { | |
273 | mutex_lock(&data->lock); | |
274 | adt7470_read_temperatures(client, data); | |
275 | mutex_unlock(&data->lock); | |
93cacfd4 JS |
276 | |
277 | set_current_state(TASK_INTERRUPTIBLE); | |
89fac11c DW |
278 | if (kthread_should_stop()) |
279 | break; | |
93cacfd4 JS |
280 | |
281 | schedule_timeout(msecs_to_jiffies(data->auto_update_interval)); | |
89fac11c DW |
282 | } |
283 | ||
284 | complete_all(&data->auto_update_stop); | |
285 | return 0; | |
286 | } | |
287 | ||
288 | static struct adt7470_data *adt7470_update_device(struct device *dev) | |
289 | { | |
30485776 AL |
290 | struct adt7470_data *data = dev_get_drvdata(dev); |
291 | struct i2c_client *client = data->client; | |
89fac11c DW |
292 | unsigned long local_jiffies = jiffies; |
293 | u8 cfg; | |
294 | int i; | |
295 | int need_sensors = 1; | |
296 | int need_limits = 1; | |
297 | ||
298 | /* | |
299 | * Figure out if we need to update the shadow registers. | |
300 | * Lockless means that we may occasionally report out of | |
301 | * date data. | |
302 | */ | |
303 | if (time_before(local_jiffies, data->sensors_last_updated + | |
304 | SENSOR_REFRESH_INTERVAL) && | |
305 | data->sensors_valid) | |
306 | need_sensors = 0; | |
307 | ||
308 | if (time_before(local_jiffies, data->limits_last_updated + | |
309 | LIMIT_REFRESH_INTERVAL) && | |
310 | data->limits_valid) | |
311 | need_limits = 0; | |
312 | ||
313 | if (!need_sensors && !need_limits) | |
314 | return data; | |
315 | ||
316 | mutex_lock(&data->lock); | |
317 | if (!need_sensors) | |
318 | goto no_sensor_update; | |
319 | ||
320 | if (!data->temperatures_probed) | |
321 | adt7470_read_temperatures(client, data); | |
322 | else | |
2f22d5df | 323 | for (i = 0; i < ADT7470_TEMP_COUNT; i++) |
89fac11c DW |
324 | data->temp[i] = i2c_smbus_read_byte_data(client, |
325 | ADT7470_TEMP_REG(i)); | |
2f22d5df | 326 | |
6f9703d0 DW |
327 | for (i = 0; i < ADT7470_FAN_COUNT; i++) |
328 | data->fan[i] = adt7470_read_word_data(client, | |
329 | ADT7470_REG_FAN(i)); | |
330 | ||
331 | for (i = 0; i < ADT7470_PWM_COUNT; i++) { | |
332 | int reg; | |
333 | int reg_mask; | |
334 | ||
335 | data->pwm[i] = i2c_smbus_read_byte_data(client, | |
336 | ADT7470_REG_PWM(i)); | |
337 | ||
338 | if (i % 2) | |
339 | reg_mask = ADT7470_PWM2_AUTO_MASK; | |
340 | else | |
341 | reg_mask = ADT7470_PWM1_AUTO_MASK; | |
342 | ||
343 | reg = ADT7470_REG_PWM_CFG(i); | |
344 | if (i2c_smbus_read_byte_data(client, reg) & reg_mask) | |
345 | data->pwm_automatic[i] = 1; | |
346 | else | |
347 | data->pwm_automatic[i] = 0; | |
348 | ||
349 | reg = ADT7470_REG_PWM_AUTO_TEMP(i); | |
350 | cfg = i2c_smbus_read_byte_data(client, reg); | |
351 | if (!(i % 2)) | |
352 | data->pwm_auto_temp[i] = cfg >> 4; | |
353 | else | |
354 | data->pwm_auto_temp[i] = cfg & 0xF; | |
355 | } | |
356 | ||
357 | if (i2c_smbus_read_byte_data(client, ADT7470_REG_CFG) & | |
358 | ADT7470_FSPD_MASK) | |
359 | data->force_pwm_max = 1; | |
360 | else | |
361 | data->force_pwm_max = 0; | |
362 | ||
fe03f28c DW |
363 | data->alarm = i2c_smbus_read_byte_data(client, ADT7470_REG_ALARM1); |
364 | if (data->alarm & ADT7470_OOL_ALARM) | |
365 | data->alarm |= ALARM2(i2c_smbus_read_byte_data(client, | |
366 | ADT7470_REG_ALARM2)); | |
6f9703d0 DW |
367 | data->alarms_mask = adt7470_read_word_data(client, |
368 | ADT7470_REG_ALARM1_MASK); | |
369 | ||
370 | data->sensors_last_updated = local_jiffies; | |
371 | data->sensors_valid = 1; | |
372 | ||
373 | no_sensor_update: | |
89fac11c | 374 | if (!need_limits) |
6f9703d0 DW |
375 | goto out; |
376 | ||
377 | for (i = 0; i < ADT7470_TEMP_COUNT; i++) { | |
378 | data->temp_min[i] = i2c_smbus_read_byte_data(client, | |
379 | ADT7470_TEMP_MIN_REG(i)); | |
380 | data->temp_max[i] = i2c_smbus_read_byte_data(client, | |
381 | ADT7470_TEMP_MAX_REG(i)); | |
382 | } | |
383 | ||
384 | for (i = 0; i < ADT7470_FAN_COUNT; i++) { | |
385 | data->fan_min[i] = adt7470_read_word_data(client, | |
386 | ADT7470_REG_FAN_MIN(i)); | |
387 | data->fan_max[i] = adt7470_read_word_data(client, | |
388 | ADT7470_REG_FAN_MAX(i)); | |
389 | } | |
390 | ||
391 | for (i = 0; i < ADT7470_PWM_COUNT; i++) { | |
392 | data->pwm_max[i] = i2c_smbus_read_byte_data(client, | |
393 | ADT7470_REG_PWM_MAX(i)); | |
394 | data->pwm_min[i] = i2c_smbus_read_byte_data(client, | |
395 | ADT7470_REG_PWM_MIN(i)); | |
396 | data->pwm_tmin[i] = i2c_smbus_read_byte_data(client, | |
397 | ADT7470_REG_PWM_TMIN(i)); | |
398 | } | |
399 | ||
400 | data->limits_last_updated = local_jiffies; | |
401 | data->limits_valid = 1; | |
402 | ||
403 | out: | |
404 | mutex_unlock(&data->lock); | |
405 | return data; | |
406 | } | |
407 | ||
89fac11c DW |
408 | static ssize_t show_auto_update_interval(struct device *dev, |
409 | struct device_attribute *devattr, | |
410 | char *buf) | |
411 | { | |
412 | struct adt7470_data *data = adt7470_update_device(dev); | |
413 | return sprintf(buf, "%d\n", data->auto_update_interval); | |
414 | } | |
415 | ||
416 | static ssize_t set_auto_update_interval(struct device *dev, | |
417 | struct device_attribute *devattr, | |
418 | const char *buf, | |
419 | size_t count) | |
420 | { | |
30485776 | 421 | struct adt7470_data *data = dev_get_drvdata(dev); |
89fac11c DW |
422 | long temp; |
423 | ||
179c4fdb | 424 | if (kstrtol(buf, 10, &temp)) |
89fac11c DW |
425 | return -EINVAL; |
426 | ||
2a844c14 | 427 | temp = clamp_val(temp, 0, 60000); |
89fac11c DW |
428 | |
429 | mutex_lock(&data->lock); | |
430 | data->auto_update_interval = temp; | |
431 | mutex_unlock(&data->lock); | |
432 | ||
433 | return count; | |
434 | } | |
435 | ||
2f22d5df DW |
436 | static ssize_t show_num_temp_sensors(struct device *dev, |
437 | struct device_attribute *devattr, | |
438 | char *buf) | |
439 | { | |
440 | struct adt7470_data *data = adt7470_update_device(dev); | |
441 | return sprintf(buf, "%d\n", data->num_temp_sensors); | |
442 | } | |
443 | ||
444 | static ssize_t set_num_temp_sensors(struct device *dev, | |
445 | struct device_attribute *devattr, | |
446 | const char *buf, | |
447 | size_t count) | |
448 | { | |
30485776 | 449 | struct adt7470_data *data = dev_get_drvdata(dev); |
2f22d5df DW |
450 | long temp; |
451 | ||
179c4fdb | 452 | if (kstrtol(buf, 10, &temp)) |
2f22d5df DW |
453 | return -EINVAL; |
454 | ||
2a844c14 | 455 | temp = clamp_val(temp, -1, 10); |
2f22d5df DW |
456 | |
457 | mutex_lock(&data->lock); | |
458 | data->num_temp_sensors = temp; | |
89fac11c DW |
459 | if (temp < 0) |
460 | data->temperatures_probed = 0; | |
2f22d5df DW |
461 | mutex_unlock(&data->lock); |
462 | ||
463 | return count; | |
464 | } | |
465 | ||
6f9703d0 DW |
466 | static ssize_t show_temp_min(struct device *dev, |
467 | struct device_attribute *devattr, | |
468 | char *buf) | |
469 | { | |
470 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
471 | struct adt7470_data *data = adt7470_update_device(dev); | |
472 | return sprintf(buf, "%d\n", 1000 * data->temp_min[attr->index]); | |
473 | } | |
474 | ||
475 | static ssize_t set_temp_min(struct device *dev, | |
476 | struct device_attribute *devattr, | |
477 | const char *buf, | |
478 | size_t count) | |
479 | { | |
480 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
30485776 AL |
481 | struct adt7470_data *data = dev_get_drvdata(dev); |
482 | struct i2c_client *client = data->client; | |
05a9bd46 DW |
483 | long temp; |
484 | ||
179c4fdb | 485 | if (kstrtol(buf, 10, &temp)) |
05a9bd46 DW |
486 | return -EINVAL; |
487 | ||
8f8c1fb0 | 488 | temp = DIV_ROUND_CLOSEST(temp, 1000); |
de12d6f4 | 489 | temp = clamp_val(temp, -128, 127); |
6f9703d0 DW |
490 | |
491 | mutex_lock(&data->lock); | |
492 | data->temp_min[attr->index] = temp; | |
493 | i2c_smbus_write_byte_data(client, ADT7470_TEMP_MIN_REG(attr->index), | |
494 | temp); | |
495 | mutex_unlock(&data->lock); | |
496 | ||
497 | return count; | |
498 | } | |
499 | ||
500 | static ssize_t show_temp_max(struct device *dev, | |
501 | struct device_attribute *devattr, | |
502 | char *buf) | |
503 | { | |
504 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
505 | struct adt7470_data *data = adt7470_update_device(dev); | |
506 | return sprintf(buf, "%d\n", 1000 * data->temp_max[attr->index]); | |
507 | } | |
508 | ||
509 | static ssize_t set_temp_max(struct device *dev, | |
510 | struct device_attribute *devattr, | |
511 | const char *buf, | |
512 | size_t count) | |
513 | { | |
514 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
30485776 AL |
515 | struct adt7470_data *data = dev_get_drvdata(dev); |
516 | struct i2c_client *client = data->client; | |
05a9bd46 DW |
517 | long temp; |
518 | ||
179c4fdb | 519 | if (kstrtol(buf, 10, &temp)) |
05a9bd46 DW |
520 | return -EINVAL; |
521 | ||
8f8c1fb0 | 522 | temp = DIV_ROUND_CLOSEST(temp, 1000); |
de12d6f4 | 523 | temp = clamp_val(temp, -128, 127); |
6f9703d0 DW |
524 | |
525 | mutex_lock(&data->lock); | |
526 | data->temp_max[attr->index] = temp; | |
527 | i2c_smbus_write_byte_data(client, ADT7470_TEMP_MAX_REG(attr->index), | |
528 | temp); | |
529 | mutex_unlock(&data->lock); | |
530 | ||
531 | return count; | |
532 | } | |
533 | ||
534 | static ssize_t show_temp(struct device *dev, struct device_attribute *devattr, | |
535 | char *buf) | |
536 | { | |
537 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
538 | struct adt7470_data *data = adt7470_update_device(dev); | |
539 | return sprintf(buf, "%d\n", 1000 * data->temp[attr->index]); | |
540 | } | |
541 | ||
fe03f28c | 542 | static ssize_t show_alarm_mask(struct device *dev, |
6f9703d0 DW |
543 | struct device_attribute *devattr, |
544 | char *buf) | |
545 | { | |
6f9703d0 DW |
546 | struct adt7470_data *data = adt7470_update_device(dev); |
547 | ||
fe03f28c | 548 | return sprintf(buf, "%x\n", data->alarms_mask); |
6f9703d0 DW |
549 | } |
550 | ||
feca3132 JS |
551 | static ssize_t set_alarm_mask(struct device *dev, |
552 | struct device_attribute *devattr, | |
553 | const char *buf, | |
554 | size_t count) | |
555 | { | |
556 | struct adt7470_data *data = dev_get_drvdata(dev); | |
557 | long mask; | |
558 | ||
559 | if (kstrtoul(buf, 0, &mask)) | |
560 | return -EINVAL; | |
561 | ||
562 | if (mask & ~0xffff) | |
563 | return -EINVAL; | |
564 | ||
565 | mutex_lock(&data->lock); | |
566 | data->alarms_mask = mask; | |
567 | adt7470_write_word_data(data->client, ADT7470_REG_ALARM1_MASK, mask); | |
568 | mutex_unlock(&data->lock); | |
569 | ||
570 | return count; | |
571 | } | |
572 | ||
6f9703d0 DW |
573 | static ssize_t show_fan_max(struct device *dev, |
574 | struct device_attribute *devattr, | |
575 | char *buf) | |
576 | { | |
577 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
578 | struct adt7470_data *data = adt7470_update_device(dev); | |
579 | ||
580 | if (FAN_DATA_VALID(data->fan_max[attr->index])) | |
581 | return sprintf(buf, "%d\n", | |
582 | FAN_PERIOD_TO_RPM(data->fan_max[attr->index])); | |
583 | else | |
584 | return sprintf(buf, "0\n"); | |
585 | } | |
586 | ||
587 | static ssize_t set_fan_max(struct device *dev, | |
588 | struct device_attribute *devattr, | |
589 | const char *buf, size_t count) | |
590 | { | |
591 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
30485776 AL |
592 | struct adt7470_data *data = dev_get_drvdata(dev); |
593 | struct i2c_client *client = data->client; | |
05a9bd46 | 594 | long temp; |
6f9703d0 | 595 | |
179c4fdb | 596 | if (kstrtol(buf, 10, &temp) || !temp) |
6f9703d0 | 597 | return -EINVAL; |
05a9bd46 | 598 | |
6f9703d0 | 599 | temp = FAN_RPM_TO_PERIOD(temp); |
2a844c14 | 600 | temp = clamp_val(temp, 1, 65534); |
6f9703d0 DW |
601 | |
602 | mutex_lock(&data->lock); | |
603 | data->fan_max[attr->index] = temp; | |
604 | adt7470_write_word_data(client, ADT7470_REG_FAN_MAX(attr->index), temp); | |
605 | mutex_unlock(&data->lock); | |
606 | ||
607 | return count; | |
608 | } | |
609 | ||
610 | static ssize_t show_fan_min(struct device *dev, | |
611 | struct device_attribute *devattr, | |
612 | char *buf) | |
613 | { | |
614 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
615 | struct adt7470_data *data = adt7470_update_device(dev); | |
616 | ||
617 | if (FAN_DATA_VALID(data->fan_min[attr->index])) | |
618 | return sprintf(buf, "%d\n", | |
619 | FAN_PERIOD_TO_RPM(data->fan_min[attr->index])); | |
620 | else | |
621 | return sprintf(buf, "0\n"); | |
622 | } | |
623 | ||
624 | static ssize_t set_fan_min(struct device *dev, | |
625 | struct device_attribute *devattr, | |
626 | const char *buf, size_t count) | |
627 | { | |
628 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
30485776 AL |
629 | struct adt7470_data *data = dev_get_drvdata(dev); |
630 | struct i2c_client *client = data->client; | |
05a9bd46 | 631 | long temp; |
6f9703d0 | 632 | |
179c4fdb | 633 | if (kstrtol(buf, 10, &temp) || !temp) |
6f9703d0 | 634 | return -EINVAL; |
05a9bd46 | 635 | |
6f9703d0 | 636 | temp = FAN_RPM_TO_PERIOD(temp); |
2a844c14 | 637 | temp = clamp_val(temp, 1, 65534); |
6f9703d0 DW |
638 | |
639 | mutex_lock(&data->lock); | |
640 | data->fan_min[attr->index] = temp; | |
641 | adt7470_write_word_data(client, ADT7470_REG_FAN_MIN(attr->index), temp); | |
642 | mutex_unlock(&data->lock); | |
643 | ||
644 | return count; | |
645 | } | |
646 | ||
647 | static ssize_t show_fan(struct device *dev, struct device_attribute *devattr, | |
648 | char *buf) | |
649 | { | |
650 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
651 | struct adt7470_data *data = adt7470_update_device(dev); | |
652 | ||
653 | if (FAN_DATA_VALID(data->fan[attr->index])) | |
654 | return sprintf(buf, "%d\n", | |
655 | FAN_PERIOD_TO_RPM(data->fan[attr->index])); | |
656 | else | |
657 | return sprintf(buf, "0\n"); | |
658 | } | |
659 | ||
660 | static ssize_t show_force_pwm_max(struct device *dev, | |
661 | struct device_attribute *devattr, | |
662 | char *buf) | |
663 | { | |
664 | struct adt7470_data *data = adt7470_update_device(dev); | |
665 | return sprintf(buf, "%d\n", data->force_pwm_max); | |
666 | } | |
667 | ||
668 | static ssize_t set_force_pwm_max(struct device *dev, | |
669 | struct device_attribute *devattr, | |
670 | const char *buf, | |
671 | size_t count) | |
672 | { | |
30485776 AL |
673 | struct adt7470_data *data = dev_get_drvdata(dev); |
674 | struct i2c_client *client = data->client; | |
05a9bd46 | 675 | long temp; |
6f9703d0 DW |
676 | u8 reg; |
677 | ||
179c4fdb | 678 | if (kstrtol(buf, 10, &temp)) |
05a9bd46 DW |
679 | return -EINVAL; |
680 | ||
6f9703d0 DW |
681 | mutex_lock(&data->lock); |
682 | data->force_pwm_max = temp; | |
683 | reg = i2c_smbus_read_byte_data(client, ADT7470_REG_CFG); | |
684 | if (temp) | |
685 | reg |= ADT7470_FSPD_MASK; | |
686 | else | |
687 | reg &= ~ADT7470_FSPD_MASK; | |
688 | i2c_smbus_write_byte_data(client, ADT7470_REG_CFG, reg); | |
689 | mutex_unlock(&data->lock); | |
690 | ||
691 | return count; | |
692 | } | |
693 | ||
694 | static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr, | |
695 | char *buf) | |
696 | { | |
697 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
698 | struct adt7470_data *data = adt7470_update_device(dev); | |
699 | return sprintf(buf, "%d\n", data->pwm[attr->index]); | |
700 | } | |
701 | ||
702 | static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr, | |
703 | const char *buf, size_t count) | |
704 | { | |
705 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
30485776 AL |
706 | struct adt7470_data *data = dev_get_drvdata(dev); |
707 | struct i2c_client *client = data->client; | |
05a9bd46 DW |
708 | long temp; |
709 | ||
179c4fdb | 710 | if (kstrtol(buf, 10, &temp)) |
05a9bd46 DW |
711 | return -EINVAL; |
712 | ||
2a844c14 | 713 | temp = clamp_val(temp, 0, 255); |
6f9703d0 DW |
714 | |
715 | mutex_lock(&data->lock); | |
716 | data->pwm[attr->index] = temp; | |
717 | i2c_smbus_write_byte_data(client, ADT7470_REG_PWM(attr->index), temp); | |
718 | mutex_unlock(&data->lock); | |
719 | ||
720 | return count; | |
721 | } | |
722 | ||
aa18cc91 JS |
723 | /* These are the valid PWM frequencies to the nearest Hz */ |
724 | static const int adt7470_freq_map[] = { | |
725 | 11, 15, 22, 29, 35, 44, 59, 88, 1400, 22500 | |
726 | }; | |
727 | ||
728 | static ssize_t show_pwm_freq(struct device *dev, | |
729 | struct device_attribute *devattr, char *buf) | |
730 | { | |
731 | struct adt7470_data *data = adt7470_update_device(dev); | |
732 | unsigned char cfg_reg_1; | |
733 | unsigned char cfg_reg_2; | |
734 | int index; | |
735 | ||
736 | mutex_lock(&data->lock); | |
737 | cfg_reg_1 = i2c_smbus_read_byte_data(data->client, ADT7470_REG_CFG); | |
738 | cfg_reg_2 = i2c_smbus_read_byte_data(data->client, ADT7470_REG_CFG_2); | |
739 | mutex_unlock(&data->lock); | |
740 | ||
741 | index = (cfg_reg_2 & ADT7470_FREQ_MASK) >> ADT7470_FREQ_SHIFT; | |
742 | if (!(cfg_reg_1 & ADT7470_CFG_LF)) | |
743 | index += 8; | |
744 | if (index >= ARRAY_SIZE(adt7470_freq_map)) | |
745 | index = ARRAY_SIZE(adt7470_freq_map) - 1; | |
746 | ||
747 | return scnprintf(buf, PAGE_SIZE, "%d\n", adt7470_freq_map[index]); | |
748 | } | |
749 | ||
750 | static ssize_t set_pwm_freq(struct device *dev, | |
751 | struct device_attribute *devattr, | |
752 | const char *buf, size_t count) | |
753 | { | |
754 | struct adt7470_data *data = dev_get_drvdata(dev); | |
755 | struct i2c_client *client = data->client; | |
756 | long freq; | |
757 | int index; | |
758 | int low_freq = ADT7470_CFG_LF; | |
759 | unsigned char val; | |
760 | ||
761 | if (kstrtol(buf, 10, &freq)) | |
762 | return -EINVAL; | |
763 | ||
764 | /* Round the user value given to the closest available frequency */ | |
765 | index = find_closest(freq, adt7470_freq_map, | |
766 | ARRAY_SIZE(adt7470_freq_map)); | |
767 | ||
768 | if (index >= 8) { | |
769 | index -= 8; | |
770 | low_freq = 0; | |
771 | } | |
772 | ||
773 | mutex_lock(&data->lock); | |
774 | /* Configuration Register 1 */ | |
775 | val = i2c_smbus_read_byte_data(client, ADT7470_REG_CFG); | |
776 | i2c_smbus_write_byte_data(client, ADT7470_REG_CFG, | |
777 | (val & ~ADT7470_CFG_LF) | low_freq); | |
778 | /* Configuration Register 2 */ | |
779 | val = i2c_smbus_read_byte_data(client, ADT7470_REG_CFG_2); | |
780 | i2c_smbus_write_byte_data(client, ADT7470_REG_CFG_2, | |
781 | (val & ~ADT7470_FREQ_MASK) | (index << ADT7470_FREQ_SHIFT)); | |
782 | mutex_unlock(&data->lock); | |
783 | ||
784 | return count; | |
785 | } | |
786 | ||
6f9703d0 DW |
787 | static ssize_t show_pwm_max(struct device *dev, |
788 | struct device_attribute *devattr, | |
789 | char *buf) | |
790 | { | |
791 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
792 | struct adt7470_data *data = adt7470_update_device(dev); | |
793 | return sprintf(buf, "%d\n", data->pwm_max[attr->index]); | |
794 | } | |
795 | ||
796 | static ssize_t set_pwm_max(struct device *dev, | |
797 | struct device_attribute *devattr, | |
798 | const char *buf, | |
799 | size_t count) | |
800 | { | |
801 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
30485776 AL |
802 | struct adt7470_data *data = dev_get_drvdata(dev); |
803 | struct i2c_client *client = data->client; | |
05a9bd46 DW |
804 | long temp; |
805 | ||
179c4fdb | 806 | if (kstrtol(buf, 10, &temp)) |
05a9bd46 DW |
807 | return -EINVAL; |
808 | ||
2a844c14 | 809 | temp = clamp_val(temp, 0, 255); |
6f9703d0 DW |
810 | |
811 | mutex_lock(&data->lock); | |
812 | data->pwm_max[attr->index] = temp; | |
813 | i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_MAX(attr->index), | |
814 | temp); | |
815 | mutex_unlock(&data->lock); | |
816 | ||
817 | return count; | |
818 | } | |
819 | ||
820 | static ssize_t show_pwm_min(struct device *dev, | |
821 | struct device_attribute *devattr, | |
822 | char *buf) | |
823 | { | |
824 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
825 | struct adt7470_data *data = adt7470_update_device(dev); | |
826 | return sprintf(buf, "%d\n", data->pwm_min[attr->index]); | |
827 | } | |
828 | ||
829 | static ssize_t set_pwm_min(struct device *dev, | |
830 | struct device_attribute *devattr, | |
831 | const char *buf, | |
832 | size_t count) | |
833 | { | |
834 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
30485776 AL |
835 | struct adt7470_data *data = dev_get_drvdata(dev); |
836 | struct i2c_client *client = data->client; | |
05a9bd46 DW |
837 | long temp; |
838 | ||
179c4fdb | 839 | if (kstrtol(buf, 10, &temp)) |
05a9bd46 DW |
840 | return -EINVAL; |
841 | ||
2a844c14 | 842 | temp = clamp_val(temp, 0, 255); |
6f9703d0 DW |
843 | |
844 | mutex_lock(&data->lock); | |
845 | data->pwm_min[attr->index] = temp; | |
846 | i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_MIN(attr->index), | |
847 | temp); | |
848 | mutex_unlock(&data->lock); | |
849 | ||
850 | return count; | |
851 | } | |
852 | ||
853 | static ssize_t show_pwm_tmax(struct device *dev, | |
854 | struct device_attribute *devattr, | |
855 | char *buf) | |
856 | { | |
857 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
858 | struct adt7470_data *data = adt7470_update_device(dev); | |
859 | /* the datasheet says that tmax = tmin + 20C */ | |
860 | return sprintf(buf, "%d\n", 1000 * (20 + data->pwm_tmin[attr->index])); | |
861 | } | |
862 | ||
863 | static ssize_t show_pwm_tmin(struct device *dev, | |
864 | struct device_attribute *devattr, | |
865 | char *buf) | |
866 | { | |
867 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
868 | struct adt7470_data *data = adt7470_update_device(dev); | |
869 | return sprintf(buf, "%d\n", 1000 * data->pwm_tmin[attr->index]); | |
870 | } | |
871 | ||
872 | static ssize_t set_pwm_tmin(struct device *dev, | |
873 | struct device_attribute *devattr, | |
874 | const char *buf, | |
875 | size_t count) | |
876 | { | |
877 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
30485776 AL |
878 | struct adt7470_data *data = dev_get_drvdata(dev); |
879 | struct i2c_client *client = data->client; | |
05a9bd46 DW |
880 | long temp; |
881 | ||
179c4fdb | 882 | if (kstrtol(buf, 10, &temp)) |
05a9bd46 DW |
883 | return -EINVAL; |
884 | ||
8f8c1fb0 | 885 | temp = DIV_ROUND_CLOSEST(temp, 1000); |
de12d6f4 | 886 | temp = clamp_val(temp, -128, 127); |
6f9703d0 DW |
887 | |
888 | mutex_lock(&data->lock); | |
889 | data->pwm_tmin[attr->index] = temp; | |
890 | i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_TMIN(attr->index), | |
891 | temp); | |
892 | mutex_unlock(&data->lock); | |
893 | ||
894 | return count; | |
895 | } | |
896 | ||
897 | static ssize_t show_pwm_auto(struct device *dev, | |
898 | struct device_attribute *devattr, | |
899 | char *buf) | |
900 | { | |
901 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
902 | struct adt7470_data *data = adt7470_update_device(dev); | |
903 | return sprintf(buf, "%d\n", 1 + data->pwm_automatic[attr->index]); | |
904 | } | |
905 | ||
906 | static ssize_t set_pwm_auto(struct device *dev, | |
907 | struct device_attribute *devattr, | |
908 | const char *buf, | |
909 | size_t count) | |
910 | { | |
911 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
30485776 AL |
912 | struct adt7470_data *data = dev_get_drvdata(dev); |
913 | struct i2c_client *client = data->client; | |
6f9703d0 DW |
914 | int pwm_auto_reg = ADT7470_REG_PWM_CFG(attr->index); |
915 | int pwm_auto_reg_mask; | |
05a9bd46 | 916 | long temp; |
6f9703d0 DW |
917 | u8 reg; |
918 | ||
179c4fdb | 919 | if (kstrtol(buf, 10, &temp)) |
05a9bd46 DW |
920 | return -EINVAL; |
921 | ||
6f9703d0 DW |
922 | if (attr->index % 2) |
923 | pwm_auto_reg_mask = ADT7470_PWM2_AUTO_MASK; | |
924 | else | |
925 | pwm_auto_reg_mask = ADT7470_PWM1_AUTO_MASK; | |
926 | ||
927 | if (temp != 2 && temp != 1) | |
928 | return -EINVAL; | |
929 | temp--; | |
930 | ||
931 | mutex_lock(&data->lock); | |
932 | data->pwm_automatic[attr->index] = temp; | |
933 | reg = i2c_smbus_read_byte_data(client, pwm_auto_reg); | |
934 | if (temp) | |
935 | reg |= pwm_auto_reg_mask; | |
936 | else | |
937 | reg &= ~pwm_auto_reg_mask; | |
938 | i2c_smbus_write_byte_data(client, pwm_auto_reg, reg); | |
939 | mutex_unlock(&data->lock); | |
940 | ||
941 | return count; | |
942 | } | |
943 | ||
944 | static ssize_t show_pwm_auto_temp(struct device *dev, | |
945 | struct device_attribute *devattr, | |
946 | char *buf) | |
947 | { | |
948 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
949 | struct adt7470_data *data = adt7470_update_device(dev); | |
950 | u8 ctrl = data->pwm_auto_temp[attr->index]; | |
951 | ||
952 | if (ctrl) | |
953 | return sprintf(buf, "%d\n", 1 << (ctrl - 1)); | |
954 | else | |
955 | return sprintf(buf, "%d\n", ADT7470_PWM_ALL_TEMPS); | |
956 | } | |
957 | ||
958 | static int cvt_auto_temp(int input) | |
959 | { | |
960 | if (input == ADT7470_PWM_ALL_TEMPS) | |
961 | return 0; | |
ce9c2f44 | 962 | if (input < 1 || !is_power_of_2(input)) |
6f9703d0 DW |
963 | return -EINVAL; |
964 | return ilog2(input) + 1; | |
965 | } | |
966 | ||
967 | static ssize_t set_pwm_auto_temp(struct device *dev, | |
968 | struct device_attribute *devattr, | |
969 | const char *buf, | |
970 | size_t count) | |
971 | { | |
972 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
30485776 AL |
973 | struct adt7470_data *data = dev_get_drvdata(dev); |
974 | struct i2c_client *client = data->client; | |
6f9703d0 | 975 | int pwm_auto_reg = ADT7470_REG_PWM_AUTO_TEMP(attr->index); |
05a9bd46 | 976 | long temp; |
6f9703d0 DW |
977 | u8 reg; |
978 | ||
179c4fdb | 979 | if (kstrtol(buf, 10, &temp)) |
05a9bd46 DW |
980 | return -EINVAL; |
981 | ||
982 | temp = cvt_auto_temp(temp); | |
6f9703d0 DW |
983 | if (temp < 0) |
984 | return temp; | |
985 | ||
986 | mutex_lock(&data->lock); | |
987 | data->pwm_automatic[attr->index] = temp; | |
988 | reg = i2c_smbus_read_byte_data(client, pwm_auto_reg); | |
989 | ||
990 | if (!(attr->index % 2)) { | |
991 | reg &= 0xF; | |
992 | reg |= (temp << 4) & 0xF0; | |
993 | } else { | |
994 | reg &= 0xF0; | |
995 | reg |= temp & 0xF; | |
996 | } | |
997 | ||
998 | i2c_smbus_write_byte_data(client, pwm_auto_reg, reg); | |
999 | mutex_unlock(&data->lock); | |
1000 | ||
1001 | return count; | |
1002 | } | |
1003 | ||
fe03f28c DW |
1004 | static ssize_t show_alarm(struct device *dev, |
1005 | struct device_attribute *devattr, | |
1006 | char *buf) | |
1007 | { | |
1008 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
1009 | struct adt7470_data *data = adt7470_update_device(dev); | |
1010 | ||
1011 | if (data->alarm & attr->index) | |
1012 | return sprintf(buf, "1\n"); | |
1013 | else | |
1014 | return sprintf(buf, "0\n"); | |
1015 | } | |
1016 | ||
feca3132 JS |
1017 | static DEVICE_ATTR(alarm_mask, S_IWUSR | S_IRUGO, show_alarm_mask, |
1018 | set_alarm_mask); | |
2f22d5df DW |
1019 | static DEVICE_ATTR(num_temp_sensors, S_IWUSR | S_IRUGO, show_num_temp_sensors, |
1020 | set_num_temp_sensors); | |
89fac11c DW |
1021 | static DEVICE_ATTR(auto_update_interval, S_IWUSR | S_IRUGO, |
1022 | show_auto_update_interval, set_auto_update_interval); | |
6f9703d0 DW |
1023 | |
1024 | static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp_max, | |
1025 | set_temp_max, 0); | |
1026 | static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp_max, | |
1027 | set_temp_max, 1); | |
1028 | static SENSOR_DEVICE_ATTR(temp3_max, S_IWUSR | S_IRUGO, show_temp_max, | |
1029 | set_temp_max, 2); | |
1030 | static SENSOR_DEVICE_ATTR(temp4_max, S_IWUSR | S_IRUGO, show_temp_max, | |
1031 | set_temp_max, 3); | |
1032 | static SENSOR_DEVICE_ATTR(temp5_max, S_IWUSR | S_IRUGO, show_temp_max, | |
1033 | set_temp_max, 4); | |
1034 | static SENSOR_DEVICE_ATTR(temp6_max, S_IWUSR | S_IRUGO, show_temp_max, | |
1035 | set_temp_max, 5); | |
1036 | static SENSOR_DEVICE_ATTR(temp7_max, S_IWUSR | S_IRUGO, show_temp_max, | |
1037 | set_temp_max, 6); | |
1038 | static SENSOR_DEVICE_ATTR(temp8_max, S_IWUSR | S_IRUGO, show_temp_max, | |
1039 | set_temp_max, 7); | |
1040 | static SENSOR_DEVICE_ATTR(temp9_max, S_IWUSR | S_IRUGO, show_temp_max, | |
1041 | set_temp_max, 8); | |
1042 | static SENSOR_DEVICE_ATTR(temp10_max, S_IWUSR | S_IRUGO, show_temp_max, | |
1043 | set_temp_max, 9); | |
1044 | ||
1045 | static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp_min, | |
1046 | set_temp_min, 0); | |
1047 | static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp_min, | |
1048 | set_temp_min, 1); | |
1049 | static SENSOR_DEVICE_ATTR(temp3_min, S_IWUSR | S_IRUGO, show_temp_min, | |
1050 | set_temp_min, 2); | |
1051 | static SENSOR_DEVICE_ATTR(temp4_min, S_IWUSR | S_IRUGO, show_temp_min, | |
1052 | set_temp_min, 3); | |
1053 | static SENSOR_DEVICE_ATTR(temp5_min, S_IWUSR | S_IRUGO, show_temp_min, | |
1054 | set_temp_min, 4); | |
1055 | static SENSOR_DEVICE_ATTR(temp6_min, S_IWUSR | S_IRUGO, show_temp_min, | |
1056 | set_temp_min, 5); | |
1057 | static SENSOR_DEVICE_ATTR(temp7_min, S_IWUSR | S_IRUGO, show_temp_min, | |
1058 | set_temp_min, 6); | |
1059 | static SENSOR_DEVICE_ATTR(temp8_min, S_IWUSR | S_IRUGO, show_temp_min, | |
1060 | set_temp_min, 7); | |
1061 | static SENSOR_DEVICE_ATTR(temp9_min, S_IWUSR | S_IRUGO, show_temp_min, | |
1062 | set_temp_min, 8); | |
1063 | static SENSOR_DEVICE_ATTR(temp10_min, S_IWUSR | S_IRUGO, show_temp_min, | |
1064 | set_temp_min, 9); | |
1065 | ||
1066 | static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0); | |
1067 | static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1); | |
1068 | static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2); | |
1069 | static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, show_temp, NULL, 3); | |
1070 | static SENSOR_DEVICE_ATTR(temp5_input, S_IRUGO, show_temp, NULL, 4); | |
1071 | static SENSOR_DEVICE_ATTR(temp6_input, S_IRUGO, show_temp, NULL, 5); | |
1072 | static SENSOR_DEVICE_ATTR(temp7_input, S_IRUGO, show_temp, NULL, 6); | |
1073 | static SENSOR_DEVICE_ATTR(temp8_input, S_IRUGO, show_temp, NULL, 7); | |
1074 | static SENSOR_DEVICE_ATTR(temp9_input, S_IRUGO, show_temp, NULL, 8); | |
1075 | static SENSOR_DEVICE_ATTR(temp10_input, S_IRUGO, show_temp, NULL, 9); | |
1076 | ||
fe03f28c DW |
1077 | static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, |
1078 | ADT7470_R1T_ALARM); | |
1079 | static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, | |
1080 | ADT7470_R2T_ALARM); | |
1081 | static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, | |
1082 | ADT7470_R3T_ALARM); | |
1083 | static SENSOR_DEVICE_ATTR(temp4_alarm, S_IRUGO, show_alarm, NULL, | |
1084 | ADT7470_R4T_ALARM); | |
1085 | static SENSOR_DEVICE_ATTR(temp5_alarm, S_IRUGO, show_alarm, NULL, | |
1086 | ADT7470_R5T_ALARM); | |
1087 | static SENSOR_DEVICE_ATTR(temp6_alarm, S_IRUGO, show_alarm, NULL, | |
1088 | ADT7470_R6T_ALARM); | |
1089 | static SENSOR_DEVICE_ATTR(temp7_alarm, S_IRUGO, show_alarm, NULL, | |
1090 | ADT7470_R7T_ALARM); | |
1091 | static SENSOR_DEVICE_ATTR(temp8_alarm, S_IRUGO, show_alarm, NULL, | |
1092 | ALARM2(ADT7470_R8T_ALARM)); | |
1093 | static SENSOR_DEVICE_ATTR(temp9_alarm, S_IRUGO, show_alarm, NULL, | |
1094 | ALARM2(ADT7470_R9T_ALARM)); | |
1095 | static SENSOR_DEVICE_ATTR(temp10_alarm, S_IRUGO, show_alarm, NULL, | |
1096 | ALARM2(ADT7470_R10T_ALARM)); | |
1097 | ||
6f9703d0 DW |
1098 | static SENSOR_DEVICE_ATTR(fan1_max, S_IWUSR | S_IRUGO, show_fan_max, |
1099 | set_fan_max, 0); | |
1100 | static SENSOR_DEVICE_ATTR(fan2_max, S_IWUSR | S_IRUGO, show_fan_max, | |
1101 | set_fan_max, 1); | |
1102 | static SENSOR_DEVICE_ATTR(fan3_max, S_IWUSR | S_IRUGO, show_fan_max, | |
1103 | set_fan_max, 2); | |
1104 | static SENSOR_DEVICE_ATTR(fan4_max, S_IWUSR | S_IRUGO, show_fan_max, | |
1105 | set_fan_max, 3); | |
1106 | ||
1107 | static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min, | |
1108 | set_fan_min, 0); | |
1109 | static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min, | |
1110 | set_fan_min, 1); | |
1111 | static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min, | |
1112 | set_fan_min, 2); | |
1113 | static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO, show_fan_min, | |
1114 | set_fan_min, 3); | |
1115 | ||
1116 | static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0); | |
1117 | static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1); | |
1118 | static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2); | |
1119 | static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3); | |
1120 | ||
fe03f28c DW |
1121 | static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, |
1122 | ALARM2(ADT7470_FAN1_ALARM)); | |
1123 | static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, | |
1124 | ALARM2(ADT7470_FAN2_ALARM)); | |
1125 | static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, | |
1126 | ALARM2(ADT7470_FAN3_ALARM)); | |
1127 | static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, | |
1128 | ALARM2(ADT7470_FAN4_ALARM)); | |
1129 | ||
6f9703d0 DW |
1130 | static SENSOR_DEVICE_ATTR(force_pwm_max, S_IWUSR | S_IRUGO, |
1131 | show_force_pwm_max, set_force_pwm_max, 0); | |
1132 | ||
1133 | static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 0); | |
1134 | static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 1); | |
1135 | static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 2); | |
1136 | static SENSOR_DEVICE_ATTR(pwm4, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 3); | |
1137 | ||
aa18cc91 JS |
1138 | static DEVICE_ATTR(pwm1_freq, S_IWUSR | S_IRUGO, show_pwm_freq, set_pwm_freq); |
1139 | ||
6f9703d0 DW |
1140 | static SENSOR_DEVICE_ATTR(pwm1_auto_point1_pwm, S_IWUSR | S_IRUGO, |
1141 | show_pwm_min, set_pwm_min, 0); | |
1142 | static SENSOR_DEVICE_ATTR(pwm2_auto_point1_pwm, S_IWUSR | S_IRUGO, | |
1143 | show_pwm_min, set_pwm_min, 1); | |
1144 | static SENSOR_DEVICE_ATTR(pwm3_auto_point1_pwm, S_IWUSR | S_IRUGO, | |
1145 | show_pwm_min, set_pwm_min, 2); | |
1146 | static SENSOR_DEVICE_ATTR(pwm4_auto_point1_pwm, S_IWUSR | S_IRUGO, | |
1147 | show_pwm_min, set_pwm_min, 3); | |
1148 | ||
1149 | static SENSOR_DEVICE_ATTR(pwm1_auto_point2_pwm, S_IWUSR | S_IRUGO, | |
1150 | show_pwm_max, set_pwm_max, 0); | |
1151 | static SENSOR_DEVICE_ATTR(pwm2_auto_point2_pwm, S_IWUSR | S_IRUGO, | |
1152 | show_pwm_max, set_pwm_max, 1); | |
1153 | static SENSOR_DEVICE_ATTR(pwm3_auto_point2_pwm, S_IWUSR | S_IRUGO, | |
1154 | show_pwm_max, set_pwm_max, 2); | |
1155 | static SENSOR_DEVICE_ATTR(pwm4_auto_point2_pwm, S_IWUSR | S_IRUGO, | |
1156 | show_pwm_max, set_pwm_max, 3); | |
1157 | ||
1158 | static SENSOR_DEVICE_ATTR(pwm1_auto_point1_temp, S_IWUSR | S_IRUGO, | |
1159 | show_pwm_tmin, set_pwm_tmin, 0); | |
1160 | static SENSOR_DEVICE_ATTR(pwm2_auto_point1_temp, S_IWUSR | S_IRUGO, | |
1161 | show_pwm_tmin, set_pwm_tmin, 1); | |
1162 | static SENSOR_DEVICE_ATTR(pwm3_auto_point1_temp, S_IWUSR | S_IRUGO, | |
1163 | show_pwm_tmin, set_pwm_tmin, 2); | |
1164 | static SENSOR_DEVICE_ATTR(pwm4_auto_point1_temp, S_IWUSR | S_IRUGO, | |
1165 | show_pwm_tmin, set_pwm_tmin, 3); | |
1166 | ||
1167 | static SENSOR_DEVICE_ATTR(pwm1_auto_point2_temp, S_IRUGO, show_pwm_tmax, | |
1168 | NULL, 0); | |
1169 | static SENSOR_DEVICE_ATTR(pwm2_auto_point2_temp, S_IRUGO, show_pwm_tmax, | |
1170 | NULL, 1); | |
1171 | static SENSOR_DEVICE_ATTR(pwm3_auto_point2_temp, S_IRUGO, show_pwm_tmax, | |
1172 | NULL, 2); | |
1173 | static SENSOR_DEVICE_ATTR(pwm4_auto_point2_temp, S_IRUGO, show_pwm_tmax, | |
1174 | NULL, 3); | |
1175 | ||
1176 | static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, show_pwm_auto, | |
1177 | set_pwm_auto, 0); | |
1178 | static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, show_pwm_auto, | |
1179 | set_pwm_auto, 1); | |
1180 | static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, show_pwm_auto, | |
1181 | set_pwm_auto, 2); | |
1182 | static SENSOR_DEVICE_ATTR(pwm4_enable, S_IWUSR | S_IRUGO, show_pwm_auto, | |
1183 | set_pwm_auto, 3); | |
1184 | ||
1185 | static SENSOR_DEVICE_ATTR(pwm1_auto_channels_temp, S_IWUSR | S_IRUGO, | |
1186 | show_pwm_auto_temp, set_pwm_auto_temp, 0); | |
1187 | static SENSOR_DEVICE_ATTR(pwm2_auto_channels_temp, S_IWUSR | S_IRUGO, | |
1188 | show_pwm_auto_temp, set_pwm_auto_temp, 1); | |
1189 | static SENSOR_DEVICE_ATTR(pwm3_auto_channels_temp, S_IWUSR | S_IRUGO, | |
1190 | show_pwm_auto_temp, set_pwm_auto_temp, 2); | |
1191 | static SENSOR_DEVICE_ATTR(pwm4_auto_channels_temp, S_IWUSR | S_IRUGO, | |
1192 | show_pwm_auto_temp, set_pwm_auto_temp, 3); | |
1193 | ||
30485776 | 1194 | static struct attribute *adt7470_attrs[] = { |
fe03f28c | 1195 | &dev_attr_alarm_mask.attr, |
2f22d5df | 1196 | &dev_attr_num_temp_sensors.attr, |
89fac11c | 1197 | &dev_attr_auto_update_interval.attr, |
6f9703d0 DW |
1198 | &sensor_dev_attr_temp1_max.dev_attr.attr, |
1199 | &sensor_dev_attr_temp2_max.dev_attr.attr, | |
1200 | &sensor_dev_attr_temp3_max.dev_attr.attr, | |
1201 | &sensor_dev_attr_temp4_max.dev_attr.attr, | |
1202 | &sensor_dev_attr_temp5_max.dev_attr.attr, | |
1203 | &sensor_dev_attr_temp6_max.dev_attr.attr, | |
1204 | &sensor_dev_attr_temp7_max.dev_attr.attr, | |
1205 | &sensor_dev_attr_temp8_max.dev_attr.attr, | |
1206 | &sensor_dev_attr_temp9_max.dev_attr.attr, | |
1207 | &sensor_dev_attr_temp10_max.dev_attr.attr, | |
1208 | &sensor_dev_attr_temp1_min.dev_attr.attr, | |
1209 | &sensor_dev_attr_temp2_min.dev_attr.attr, | |
1210 | &sensor_dev_attr_temp3_min.dev_attr.attr, | |
1211 | &sensor_dev_attr_temp4_min.dev_attr.attr, | |
1212 | &sensor_dev_attr_temp5_min.dev_attr.attr, | |
1213 | &sensor_dev_attr_temp6_min.dev_attr.attr, | |
1214 | &sensor_dev_attr_temp7_min.dev_attr.attr, | |
1215 | &sensor_dev_attr_temp8_min.dev_attr.attr, | |
1216 | &sensor_dev_attr_temp9_min.dev_attr.attr, | |
1217 | &sensor_dev_attr_temp10_min.dev_attr.attr, | |
1218 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
1219 | &sensor_dev_attr_temp2_input.dev_attr.attr, | |
1220 | &sensor_dev_attr_temp3_input.dev_attr.attr, | |
1221 | &sensor_dev_attr_temp4_input.dev_attr.attr, | |
1222 | &sensor_dev_attr_temp5_input.dev_attr.attr, | |
1223 | &sensor_dev_attr_temp6_input.dev_attr.attr, | |
1224 | &sensor_dev_attr_temp7_input.dev_attr.attr, | |
1225 | &sensor_dev_attr_temp8_input.dev_attr.attr, | |
1226 | &sensor_dev_attr_temp9_input.dev_attr.attr, | |
1227 | &sensor_dev_attr_temp10_input.dev_attr.attr, | |
fe03f28c DW |
1228 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, |
1229 | &sensor_dev_attr_temp2_alarm.dev_attr.attr, | |
1230 | &sensor_dev_attr_temp3_alarm.dev_attr.attr, | |
1231 | &sensor_dev_attr_temp4_alarm.dev_attr.attr, | |
1232 | &sensor_dev_attr_temp5_alarm.dev_attr.attr, | |
1233 | &sensor_dev_attr_temp6_alarm.dev_attr.attr, | |
1234 | &sensor_dev_attr_temp7_alarm.dev_attr.attr, | |
1235 | &sensor_dev_attr_temp8_alarm.dev_attr.attr, | |
1236 | &sensor_dev_attr_temp9_alarm.dev_attr.attr, | |
1237 | &sensor_dev_attr_temp10_alarm.dev_attr.attr, | |
6f9703d0 DW |
1238 | &sensor_dev_attr_fan1_max.dev_attr.attr, |
1239 | &sensor_dev_attr_fan2_max.dev_attr.attr, | |
1240 | &sensor_dev_attr_fan3_max.dev_attr.attr, | |
1241 | &sensor_dev_attr_fan4_max.dev_attr.attr, | |
1242 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
1243 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
1244 | &sensor_dev_attr_fan3_min.dev_attr.attr, | |
1245 | &sensor_dev_attr_fan4_min.dev_attr.attr, | |
1246 | &sensor_dev_attr_fan1_input.dev_attr.attr, | |
1247 | &sensor_dev_attr_fan2_input.dev_attr.attr, | |
1248 | &sensor_dev_attr_fan3_input.dev_attr.attr, | |
1249 | &sensor_dev_attr_fan4_input.dev_attr.attr, | |
fe03f28c DW |
1250 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
1251 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, | |
1252 | &sensor_dev_attr_fan3_alarm.dev_attr.attr, | |
1253 | &sensor_dev_attr_fan4_alarm.dev_attr.attr, | |
6f9703d0 DW |
1254 | &sensor_dev_attr_force_pwm_max.dev_attr.attr, |
1255 | &sensor_dev_attr_pwm1.dev_attr.attr, | |
aa18cc91 | 1256 | &dev_attr_pwm1_freq.attr, |
6f9703d0 DW |
1257 | &sensor_dev_attr_pwm2.dev_attr.attr, |
1258 | &sensor_dev_attr_pwm3.dev_attr.attr, | |
1259 | &sensor_dev_attr_pwm4.dev_attr.attr, | |
1260 | &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr, | |
1261 | &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr, | |
1262 | &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr, | |
1263 | &sensor_dev_attr_pwm4_auto_point1_pwm.dev_attr.attr, | |
1264 | &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr, | |
1265 | &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr, | |
1266 | &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr, | |
1267 | &sensor_dev_attr_pwm4_auto_point2_pwm.dev_attr.attr, | |
1268 | &sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr, | |
1269 | &sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr, | |
1270 | &sensor_dev_attr_pwm3_auto_point1_temp.dev_attr.attr, | |
1271 | &sensor_dev_attr_pwm4_auto_point1_temp.dev_attr.attr, | |
1272 | &sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr, | |
1273 | &sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr, | |
1274 | &sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr, | |
1275 | &sensor_dev_attr_pwm4_auto_point2_temp.dev_attr.attr, | |
1276 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, | |
1277 | &sensor_dev_attr_pwm2_enable.dev_attr.attr, | |
1278 | &sensor_dev_attr_pwm3_enable.dev_attr.attr, | |
1279 | &sensor_dev_attr_pwm4_enable.dev_attr.attr, | |
1280 | &sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr, | |
1281 | &sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr, | |
1282 | &sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr, | |
1283 | &sensor_dev_attr_pwm4_auto_channels_temp.dev_attr.attr, | |
1284 | NULL | |
1285 | }; | |
1286 | ||
30485776 AL |
1287 | ATTRIBUTE_GROUPS(adt7470); |
1288 | ||
008f1ca5 | 1289 | /* Return 0 if detection is successful, -ENODEV otherwise */ |
310ec792 | 1290 | static int adt7470_detect(struct i2c_client *client, |
008f1ca5 | 1291 | struct i2c_board_info *info) |
6f9703d0 | 1292 | { |
008f1ca5 | 1293 | struct i2c_adapter *adapter = client->adapter; |
52df6440 | 1294 | int vendor, device, revision; |
6f9703d0 DW |
1295 | |
1296 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) | |
008f1ca5 | 1297 | return -ENODEV; |
6f9703d0 | 1298 | |
52df6440 JD |
1299 | vendor = i2c_smbus_read_byte_data(client, ADT7470_REG_VENDOR); |
1300 | if (vendor != ADT7470_VENDOR) | |
1301 | return -ENODEV; | |
6f9703d0 | 1302 | |
52df6440 JD |
1303 | device = i2c_smbus_read_byte_data(client, ADT7470_REG_DEVICE); |
1304 | if (device != ADT7470_DEVICE) | |
1305 | return -ENODEV; | |
6f9703d0 | 1306 | |
52df6440 JD |
1307 | revision = i2c_smbus_read_byte_data(client, ADT7470_REG_REVISION); |
1308 | if (revision != ADT7470_REVISION) | |
1309 | return -ENODEV; | |
6f9703d0 | 1310 | |
008f1ca5 | 1311 | strlcpy(info->type, "adt7470", I2C_NAME_SIZE); |
6f9703d0 | 1312 | |
008f1ca5 JD |
1313 | return 0; |
1314 | } | |
1315 | ||
9027d933 AL |
1316 | static void adt7470_init_client(struct i2c_client *client) |
1317 | { | |
1318 | int reg = i2c_smbus_read_byte_data(client, ADT7470_REG_CFG); | |
1319 | ||
1320 | if (reg < 0) { | |
1321 | dev_err(&client->dev, "cannot read configuration register\n"); | |
1322 | } else { | |
1323 | /* start monitoring (and do a self-test) */ | |
1324 | i2c_smbus_write_byte_data(client, ADT7470_REG_CFG, reg | 3); | |
1325 | } | |
1326 | } | |
1327 | ||
008f1ca5 JD |
1328 | static int adt7470_probe(struct i2c_client *client, |
1329 | const struct i2c_device_id *id) | |
1330 | { | |
30485776 | 1331 | struct device *dev = &client->dev; |
008f1ca5 | 1332 | struct adt7470_data *data; |
30485776 | 1333 | struct device *hwmon_dev; |
008f1ca5 | 1334 | |
30485776 | 1335 | data = devm_kzalloc(dev, sizeof(struct adt7470_data), GFP_KERNEL); |
9cc7dcc5 GR |
1336 | if (!data) |
1337 | return -ENOMEM; | |
008f1ca5 | 1338 | |
2f22d5df | 1339 | data->num_temp_sensors = -1; |
89fac11c | 1340 | data->auto_update_interval = AUTO_UPDATE_INTERVAL; |
2f22d5df | 1341 | |
008f1ca5 | 1342 | i2c_set_clientdata(client, data); |
30485776 | 1343 | data->client = client; |
008f1ca5 | 1344 | mutex_init(&data->lock); |
6f9703d0 DW |
1345 | |
1346 | dev_info(&client->dev, "%s chip found\n", client->name); | |
1347 | ||
1348 | /* Initialize the ADT7470 chip */ | |
1349 | adt7470_init_client(client); | |
1350 | ||
1351 | /* Register sysfs hooks */ | |
30485776 AL |
1352 | hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, |
1353 | data, | |
1354 | adt7470_groups); | |
1355 | ||
1356 | if (IS_ERR(hwmon_dev)) | |
1357 | return PTR_ERR(hwmon_dev); | |
6f9703d0 | 1358 | |
89fac11c | 1359 | init_completion(&data->auto_update_stop); |
f170168b | 1360 | data->auto_update = kthread_run(adt7470_update_thread, client, "%s", |
30485776 | 1361 | dev_name(hwmon_dev)); |
f7334b4c | 1362 | if (IS_ERR(data->auto_update)) { |
30485776 | 1363 | return PTR_ERR(data->auto_update); |
f7334b4c | 1364 | } |
89fac11c | 1365 | |
6f9703d0 | 1366 | return 0; |
6f9703d0 DW |
1367 | } |
1368 | ||
008f1ca5 | 1369 | static int adt7470_remove(struct i2c_client *client) |
6f9703d0 DW |
1370 | { |
1371 | struct adt7470_data *data = i2c_get_clientdata(client); | |
1372 | ||
89fac11c DW |
1373 | kthread_stop(data->auto_update); |
1374 | wait_for_completion(&data->auto_update_stop); | |
6f9703d0 DW |
1375 | return 0; |
1376 | } | |
1377 | ||
9027d933 AL |
1378 | static const struct i2c_device_id adt7470_id[] = { |
1379 | { "adt7470", 0 }, | |
1380 | { } | |
1381 | }; | |
1382 | MODULE_DEVICE_TABLE(i2c, adt7470_id); | |
1383 | ||
1384 | static struct i2c_driver adt7470_driver = { | |
1385 | .class = I2C_CLASS_HWMON, | |
1386 | .driver = { | |
1387 | .name = "adt7470", | |
1388 | }, | |
1389 | .probe = adt7470_probe, | |
1390 | .remove = adt7470_remove, | |
1391 | .id_table = adt7470_id, | |
1392 | .detect = adt7470_detect, | |
1393 | .address_list = normal_i2c, | |
1394 | }; | |
1395 | ||
f0967eea | 1396 | module_i2c_driver(adt7470_driver); |
6f9703d0 | 1397 | |
5407e051 | 1398 | MODULE_AUTHOR("Darrick J. Wong <darrick.wong@oracle.com>"); |
6f9703d0 DW |
1399 | MODULE_DESCRIPTION("ADT7470 driver"); |
1400 | MODULE_LICENSE("GPL"); |