aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
Diffstat
-rw-r--r--Documentation/feature-removal-schedule.txt6
-rw-r--r--Documentation/hwmon/adt747374
-rw-r--r--drivers/hwmon/Kconfig14
-rw-r--r--drivers/hwmon/Makefile1
-rw-r--r--drivers/hwmon/adt7473.c1180
5 files changed, 0 insertions, 1275 deletions
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index 03497909539e..8debdd625e1a 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -449,12 +449,6 @@ Who: Alok N Kataria <akataria@vmware.com>
449 449
450---------------------------- 450----------------------------
451 451
452What: adt7473 hardware monitoring driver
453When: February 2010
454Why: Obsoleted by the adt7475 driver.
455Who: Jean Delvare <khali@linux-fr.org>
456
457---------------------------
458What: Support for lcd_switch and display_get in asus-laptop driver 452What: Support for lcd_switch and display_get in asus-laptop driver
459When: March 2010 453When: March 2010
460Why: These two features use non-standard interfaces. There are the 454Why: These two features use non-standard interfaces. There are the
diff --git a/Documentation/hwmon/adt7473 b/Documentation/hwmon/adt7473
deleted file mode 100644
index 446612bd1fb9..000000000000
--- a/Documentation/hwmon/adt7473
+++ /dev/null
@@ -1,74 +0,0 @@
1Kernel driver adt7473
2======================
3
4Supported chips:
5 * Analog Devices ADT7473
6 Prefix: 'adt7473'
7 Addresses scanned: I2C 0x2C, 0x2D, 0x2E
8 Datasheet: Publicly available at the Analog Devices website
9
10Author: Darrick J. Wong
11
12This driver is depreacted, please use the adt7475 driver instead.
13
14Description
15-----------
16
17This driver implements support for the Analog Devices ADT7473 chip family.
18
19The ADT7473 uses the 2-wire interface compatible with the SMBUS 2.0
20specification. Using an analog to digital converter it measures three (3)
21temperatures and two (2) voltages. It has four (4) 16-bit counters for
22measuring fan speed. There are three (3) PWM outputs that can be used
23to control fan speed.
24
25A sophisticated control system for the PWM outputs is designed into the
26ADT7473 that allows fan speed to be adjusted automatically based on any of the
27three temperature sensors. Each PWM output is individually adjustable and
28programmable. Once configured, the ADT7473 will adjust the PWM outputs in
29response to the measured temperatures without further host intervention.
30This feature can also be disabled for manual control of the PWM's.
31
32Each of the measured inputs (voltage, temperature, fan speed) has
33corresponding high/low limit values. The ADT7473 will signal an ALARM if
34any measured value exceeds either limit.
35
36The ADT7473 samples all inputs continuously. The driver will not read
37the registers more often than once every other second. Further,
38configuration data is only read once per minute.
39
40Special Features
41----------------
42
43The ADT7473 have a 10-bit ADC and can therefore measure temperatures
44with 0.25 degC resolution. Temperature readings can be configured either
45for twos complement format or "Offset 64" format, wherein 63 is subtracted
46from the raw value to get the temperature value.
47
48The Analog Devices datasheet is very detailed and describes a procedure for
49determining an optimal configuration for the automatic PWM control.
50
51Configuration Notes
52-------------------
53
54Besides standard interfaces driver adds the following:
55
56* PWM Control
57
58* pwm#_auto_point1_pwm and temp#_auto_point1_temp and
59* pwm#_auto_point2_pwm and temp#_auto_point2_temp -
60
61point1: Set the pwm speed at a lower temperature bound.
62point2: Set the pwm speed at a higher temperature bound.
63
64The ADT7473 will scale the pwm between the lower and higher pwm speed when
65the temperature is between the two temperature boundaries. PWM values range
66from 0 (off) to 255 (full speed). Fan speed will be set to maximum when the
67temperature sensor associated with the PWM control exceeds temp#_max.
68
69Notes
70-----
71
72The NVIDIA binary driver presents an ADT7473 chip via an on-card i2c bus.
73Unfortunately, they fail to set the i2c adapter class, so this driver may
74fail to find the chip until the nvidia driver is patched.
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index b6d65aa20825..e4595e6147b4 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -200,20 +200,6 @@ config SENSORS_ADT7470
200 This driver can also be built as a module. If so, the module 200 This driver can also be built as a module. If so, the module
201 will be called adt7470. 201 will be called adt7470.
202 202
203config SENSORS_ADT7473
204 tristate "Analog Devices ADT7473 (DEPRECATED)"
205 depends on I2C && EXPERIMENTAL
206 select SENSORS_ADT7475
207 help
208 If you say yes here you get support for the Analog Devices
209 ADT7473 temperature monitoring chips.
210
211 This driver is deprecated, you should use the adt7475 driver
212 instead.
213
214 This driver can also be built as a module. If so, the module
215 will be called adt7473.
216
217config SENSORS_ADT7475 203config SENSORS_ADT7475
218 tristate "Analog Devices ADT7473, ADT7475, ADT7476 and ADT7490" 204 tristate "Analog Devices ADT7473, ADT7475, ADT7476 and ADT7490"
219 depends on I2C && EXPERIMENTAL 205 depends on I2C && EXPERIMENTAL
diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile
index 865da80f2b90..4aa1a3d112ad 100644
--- a/drivers/hwmon/Makefile
+++ b/drivers/hwmon/Makefile
@@ -32,7 +32,6 @@ obj-$(CONFIG_SENSORS_ADS7828) += ads7828.o
32obj-$(CONFIG_SENSORS_ADT7411) += adt7411.o 32obj-$(CONFIG_SENSORS_ADT7411) += adt7411.o
33obj-$(CONFIG_SENSORS_ADT7462) += adt7462.o 33obj-$(CONFIG_SENSORS_ADT7462) += adt7462.o
34obj-$(CONFIG_SENSORS_ADT7470) += adt7470.o 34obj-$(CONFIG_SENSORS_ADT7470) += adt7470.o
35obj-$(CONFIG_SENSORS_ADT7473) += adt7473.o
36obj-$(CONFIG_SENSORS_ADT7475) += adt7475.o 35obj-$(CONFIG_SENSORS_ADT7475) += adt7475.o
37obj-$(CONFIG_SENSORS_APPLESMC) += applesmc.o 36obj-$(CONFIG_SENSORS_APPLESMC) += applesmc.o
38obj-$(CONFIG_SENSORS_AMS) += ams/ 37obj-$(CONFIG_SENSORS_AMS) += ams/
diff --git a/drivers/hwmon/adt7473.c b/drivers/hwmon/adt7473.c
deleted file mode 100644
index 434576f61c84..000000000000
--- a/drivers/hwmon/adt7473.c
+++ /dev/null
@@ -1,1180 +0,0 @@
1/*
2 * A hwmon driver for the Analog Devices ADT7473
3 * Copyright (C) 2007 IBM
4 *
5 * Author: Darrick J. Wong <djwong@us.ibm.com>
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
22#include <linux/module.h>
23#include <linux/jiffies.h>
24#include <linux/i2c.h>
25#include <linux/hwmon.h>
26#include <linux/hwmon-sysfs.h>
27#include <linux/err.h>
28#include <linux/mutex.h>
29#include <linux/delay.h>
30#include <linux/log2.h>
31
32/* Addresses to scan */
33static const unsigned short normal_i2c[] = { 0x2C, 0x2D, 0x2E, I2C_CLIENT_END };
34
35/* ADT7473 registers */
36#define ADT7473_REG_BASE_ADDR 0x20
37
38#define ADT7473_REG_VOLT_BASE_ADDR 0x21
39#define ADT7473_REG_VOLT_MIN_BASE_ADDR 0x46
40
41#define ADT7473_REG_TEMP_BASE_ADDR 0x25
42#define ADT7473_REG_TEMP_LIMITS_BASE_ADDR 0x4E
43#define ADT7473_REG_TEMP_TMIN_BASE_ADDR 0x67
44#define ADT7473_REG_TEMP_TMAX_BASE_ADDR 0x6A
45
46#define ADT7473_REG_FAN_BASE_ADDR 0x28
47#define ADT7473_REG_FAN_MIN_BASE_ADDR 0x54
48
49#define ADT7473_REG_PWM_BASE_ADDR 0x30
50#define ADT7473_REG_PWM_MIN_BASE_ADDR 0x64
51#define ADT7473_REG_PWM_MAX_BASE_ADDR 0x38
52#define ADT7473_REG_PWM_BHVR_BASE_ADDR 0x5C
53#define ADT7473_PWM_BHVR_MASK 0xE0
54#define ADT7473_PWM_BHVR_SHIFT 5
55
56#define ADT7473_REG_CFG1 0x40
57#define ADT7473_CFG1_START 0x01
58#define ADT7473_CFG1_READY 0x04
59#define ADT7473_REG_CFG2 0x73
60#define ADT7473_REG_CFG3 0x78
61#define ADT7473_REG_CFG4 0x7D
62#define ADT7473_CFG4_MAX_DUTY_AT_OVT 0x08
63#define ADT7473_REG_CFG5 0x7C
64#define ADT7473_CFG5_TEMP_TWOS 0x01
65#define ADT7473_CFG5_TEMP_OFFSET 0x02
66
67#define ADT7473_REG_DEVICE 0x3D
68#define ADT7473_VENDOR 0x41
69#define ADT7473_REG_VENDOR 0x3E
70#define ADT7473_DEVICE 0x73
71#define ADT7473_REG_REVISION 0x3F
72#define ADT7473_REV_68 0x68
73#define ADT7473_REV_69 0x69
74
75#define ADT7473_REG_ALARM1 0x41
76#define ADT7473_VCCP_ALARM 0x02
77#define ADT7473_VCC_ALARM 0x04
78#define ADT7473_R1T_ALARM 0x10
79#define ADT7473_LT_ALARM 0x20
80#define ADT7473_R2T_ALARM 0x40
81#define ADT7473_OOL 0x80
82#define ADT7473_REG_ALARM2 0x42
83#define ADT7473_OVT_ALARM 0x02
84#define ADT7473_FAN1_ALARM 0x04
85#define ADT7473_FAN2_ALARM 0x08
86#define ADT7473_FAN3_ALARM 0x10
87#define ADT7473_FAN4_ALARM 0x20
88#define ADT7473_R1T_SHORT 0x40
89#define ADT7473_R2T_SHORT 0x80
90
91#define ALARM2(x) ((x) << 8)
92
93#define ADT7473_VOLT_COUNT 2
94#define ADT7473_REG_VOLT(x) (ADT7473_REG_VOLT_BASE_ADDR + (x))
95#define ADT7473_REG_VOLT_MIN(x) (ADT7473_REG_VOLT_MIN_BASE_ADDR + ((x) * 2))
96#define ADT7473_REG_VOLT_MAX(x) (ADT7473_REG_VOLT_MIN_BASE_ADDR + \
97 ((x) * 2) + 1)
98
99#define ADT7473_TEMP_COUNT 3
100#define ADT7473_REG_TEMP(x) (ADT7473_REG_TEMP_BASE_ADDR + (x))
101#define ADT7473_REG_TEMP_MIN(x) (ADT7473_REG_TEMP_LIMITS_BASE_ADDR + ((x) * 2))
102#define ADT7473_REG_TEMP_MAX(x) (ADT7473_REG_TEMP_LIMITS_BASE_ADDR + \
103 ((x) * 2) + 1)
104#define ADT7473_REG_TEMP_TMIN(x) (ADT7473_REG_TEMP_TMIN_BASE_ADDR + (x))
105#define ADT7473_REG_TEMP_TMAX(x) (ADT7473_REG_TEMP_TMAX_BASE_ADDR + (x))
106
107#define ADT7473_FAN_COUNT 4
108#define ADT7473_REG_FAN(x) (ADT7473_REG_FAN_BASE_ADDR + ((x) * 2))
109#define ADT7473_REG_FAN_MIN(x) (ADT7473_REG_FAN_MIN_BASE_ADDR + ((x) * 2))
110
111#define ADT7473_PWM_COUNT 3
112#define ADT7473_REG_PWM(x) (ADT7473_REG_PWM_BASE_ADDR + (x))
113#define ADT7473_REG_PWM_MAX(x) (ADT7473_REG_PWM_MAX_BASE_ADDR + (x))
114#define ADT7473_REG_PWM_MIN(x) (ADT7473_REG_PWM_MIN_BASE_ADDR + (x))
115#define ADT7473_REG_PWM_BHVR(x) (ADT7473_REG_PWM_BHVR_BASE_ADDR + (x))
116
117/* How often do we reread sensors values? (In jiffies) */
118#define SENSOR_REFRESH_INTERVAL (2 * HZ)
119
120/* How often do we reread sensor limit values? (In jiffies) */
121#define LIMIT_REFRESH_INTERVAL (60 * HZ)
122
123/* datasheet says to divide this number by the fan reading to get fan rpm */
124#define FAN_PERIOD_TO_RPM(x) ((90000 * 60) / (x))
125#define FAN_RPM_TO_PERIOD FAN_PERIOD_TO_RPM
126#define FAN_PERIOD_INVALID 65535
127#define FAN_DATA_VALID(x) ((x) && (x) != FAN_PERIOD_INVALID)
128
129struct adt7473_data {
130 struct device *hwmon_dev;
131 struct attribute_group attrs;
132 struct mutex lock;
133 char sensors_valid;
134 char limits_valid;
135 unsigned long sensors_last_updated; /* In jiffies */
136 unsigned long limits_last_updated; /* In jiffies */
137
138 u8 volt[ADT7473_VOLT_COUNT];
139 s8 volt_min[ADT7473_VOLT_COUNT];
140 s8 volt_max[ADT7473_VOLT_COUNT];
141
142 s8 temp[ADT7473_TEMP_COUNT];
143 s8 temp_min[ADT7473_TEMP_COUNT];
144 s8 temp_max[ADT7473_TEMP_COUNT];
145 s8 temp_tmin[ADT7473_TEMP_COUNT];
146 /* This is called the !THERM limit in the datasheet */
147 s8 temp_tmax[ADT7473_TEMP_COUNT];
148
149 u16 fan[ADT7473_FAN_COUNT];
150 u16 fan_min[ADT7473_FAN_COUNT];
151
152 u8 pwm[ADT7473_PWM_COUNT];
153 u8 pwm_max[ADT7473_PWM_COUNT];
154 u8 pwm_min[ADT7473_PWM_COUNT];
155 u8 pwm_behavior[ADT7473_PWM_COUNT];
156
157 u8 temp_twos_complement;
158 u8 temp_offset;
159
160 u16 alarm;
161 u8 max_duty_at_overheat;
162};
163
164static int adt7473_probe(struct i2c_client *client,
165 const struct i2c_device_id *id);
166static int adt7473_detect(struct i2c_client *client,
167 struct i2c_board_info *info);
168static int adt7473_remove(struct i2c_client *client);
169
170static const struct i2c_device_id adt7473_id[] = {
171 { "adt7473", 0 },
172 { }
173};
174
175static struct i2c_driver adt7473_driver = {
176 .class = I2C_CLASS_HWMON,
177 .driver = {
178 .name = "adt7473",
179 },
180 .probe = adt7473_probe,
181 .remove = adt7473_remove,
182 .id_table = adt7473_id,
183 .detect = adt7473_detect,
184 .address_list = normal_i2c,
185};
186
187/*
188 * 16-bit registers on the ADT7473 are low-byte first. The data sheet says
189 * that the low byte must be read before the high byte.
190 */
191static inline int adt7473_read_word_data(struct i2c_client *client, u8 reg)
192{
193 u16 foo;
194 foo = i2c_smbus_read_byte_data(client, reg);
195 foo |= ((u16)i2c_smbus_read_byte_data(client, reg + 1) << 8);
196 return foo;
197}
198
199static inline int adt7473_write_word_data(struct i2c_client *client, u8 reg,
200 u16 value)
201{
202 return i2c_smbus_write_byte_data(client, reg, value & 0xFF)
203 && i2c_smbus_write_byte_data(client, reg + 1, value >> 8);
204}
205
206static void adt7473_init_client(struct i2c_client *client)
207{
208 int reg = i2c_smbus_read_byte_data(client, ADT7473_REG_CFG1);
209
210 if (!(reg & ADT7473_CFG1_READY)) {
211 dev_err(&client->dev, "Chip not ready.\n");
212 } else {
213 /* start monitoring */
214 i2c_smbus_write_byte_data(client, ADT7473_REG_CFG1,
215 reg | ADT7473_CFG1_START);
216 }
217}
218
219static struct adt7473_data *adt7473_update_device(struct device *dev)
220{
221 struct i2c_client *client = to_i2c_client(dev);
222 struct adt7473_data *data = i2c_get_clientdata(client);
223 unsigned long local_jiffies = jiffies;
224 u8 cfg;
225 int i;
226
227 mutex_lock(&data->lock);
228 if (time_before(local_jiffies, data->sensors_last_updated +
229 SENSOR_REFRESH_INTERVAL)
230 && data->sensors_valid)
231 goto no_sensor_update;
232
233 for (i = 0; i < ADT7473_VOLT_COUNT; i++)
234 data->volt[i] = i2c_smbus_read_byte_data(client,
235 ADT7473_REG_VOLT(i));
236
237 /* Determine temperature encoding */
238 cfg = i2c_smbus_read_byte_data(client, ADT7473_REG_CFG5);
239 data->temp_twos_complement = (cfg & ADT7473_CFG5_TEMP_TWOS);
240
241 /*
242 * What does this do? it implies a variable temperature sensor
243 * offset, but the datasheet doesn't say anything about this bit
244 * and other parts of the datasheet imply that "offset64" mode
245 * means that you shift temp values by -64 if the above bit was set.
246 */
247 data->temp_offset = (cfg & ADT7473_CFG5_TEMP_OFFSET);
248
249 for (i = 0; i < ADT7473_TEMP_COUNT; i++)
250 data->temp[i] = i2c_smbus_read_byte_data(client,
251 ADT7473_REG_TEMP(i));
252
253 for (i = 0; i < ADT7473_FAN_COUNT; i++)
254 data->fan[i] = adt7473_read_word_data(client,
255 ADT7473_REG_FAN(i));
256
257 for (i = 0; i < ADT7473_PWM_COUNT; i++)
258 data->pwm[i] = i2c_smbus_read_byte_data(client,
259 ADT7473_REG_PWM(i));
260
261 data->alarm = i2c_smbus_read_byte_data(client, ADT7473_REG_ALARM1);
262 if (data->alarm & ADT7473_OOL)
263 data->alarm |= ALARM2(i2c_smbus_read_byte_data(client,
264 ADT7473_REG_ALARM2));
265
266 data->sensors_last_updated = local_jiffies;
267 data->sensors_valid = 1;
268
269no_sensor_update:
270 if (time_before(local_jiffies, data->limits_last_updated +
271 LIMIT_REFRESH_INTERVAL)
272 && data->limits_valid)
273 goto out;
274
275 for (i = 0; i < ADT7473_VOLT_COUNT; i++) {
276 data->volt_min[i] = i2c_smbus_read_byte_data(client,
277 ADT7473_REG_VOLT_MIN(i));
278 data->volt_max[i] = i2c_smbus_read_byte_data(client,
279 ADT7473_REG_VOLT_MAX(i));
280 }
281
282 for (i = 0; i < ADT7473_TEMP_COUNT; i++) {
283 data->temp_min[i] = i2c_smbus_read_byte_data(client,
284 ADT7473_REG_TEMP_MIN(i));
285 data->temp_max[i] = i2c_smbus_read_byte_data(client,
286 ADT7473_REG_TEMP_MAX(i));
287 data->temp_tmin[i] = i2c_smbus_read_byte_data(client,
288 ADT7473_REG_TEMP_TMIN(i));
289 data->temp_tmax[i] = i2c_smbus_read_byte_data(client,
290 ADT7473_REG_TEMP_TMAX(i));
291 }
292
293 for (i = 0; i < ADT7473_FAN_COUNT; i++)
294 data->fan_min[i] = adt7473_read_word_data(client,
295 ADT7473_REG_FAN_MIN(i));
296
297 for (i = 0; i < ADT7473_PWM_COUNT; i++) {
298 data->pwm_max[i] = i2c_smbus_read_byte_data(client,
299 ADT7473_REG_PWM_MAX(i));
300 data->pwm_min[i] = i2c_smbus_read_byte_data(client,
301 ADT7473_REG_PWM_MIN(i));
302 data->pwm_behavior[i] = i2c_smbus_read_byte_data(client,
303 ADT7473_REG_PWM_BHVR(i));
304 }
305
306 i = i2c_smbus_read_byte_data(client, ADT7473_REG_CFG4);
307 data->max_duty_at_overheat = !!(i & ADT7473_CFG4_MAX_DUTY_AT_OVT);
308
309 data->limits_last_updated = local_jiffies;
310 data->limits_valid = 1;
311
312out:
313 mutex_unlock(&data->lock);
314 return data;
315}
316
317/*
318 * Conversions
319 */
320
321/* IN are scaled acording to built-in resistors */
322static const int adt7473_scaling[] = { /* .001 Volts */
323 2250, 3300
324};
325#define SCALE(val, from, to) (((val) * (to) + ((from) / 2)) / (from))
326
327static int decode_volt(int volt_index, u8 raw)
328{
329 return SCALE(raw, 192, adt7473_scaling[volt_index]);
330}
331
332static u8 encode_volt(int volt_index, int cooked)
333{
334 int raw = SCALE(cooked, adt7473_scaling[volt_index], 192);
335 return SENSORS_LIMIT(raw, 0, 255);
336}
337
338static ssize_t show_volt_min(struct device *dev,
339 struct device_attribute *devattr,
340 char *buf)
341{
342 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
343 struct adt7473_data *data = adt7473_update_device(dev);
344 return sprintf(buf, "%d\n",
345 decode_volt(attr->index, data->volt_min[attr->index]));
346}
347
348static ssize_t set_volt_min(struct device *dev,
349 struct device_attribute *devattr,
350 const char *buf,
351 size_t count)
352{
353 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
354 struct i2c_client *client = to_i2c_client(dev);
355 struct adt7473_data *data = i2c_get_clientdata(client);
356 long volt;
357
358 if (strict_strtol(buf, 10, &volt))
359 return -EINVAL;
360
361 volt = encode_volt(attr->index, volt);
362
363 mutex_lock(&data->lock);
364 data->volt_min[attr->index] = volt;
365 i2c_smbus_write_byte_data(client, ADT7473_REG_VOLT_MIN(attr->index),
366 volt);
367 mutex_unlock(&data->lock);
368
369 return count;
370}
371
372static ssize_t show_volt_max(struct device *dev,
373 struct device_attribute *devattr,
374 char *buf)
375{
376 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
377 struct adt7473_data *data = adt7473_update_device(dev);
378 return sprintf(buf, "%d\n",
379 decode_volt(attr->index, data->volt_max[attr->index]));
380}
381
382static ssize_t set_volt_max(struct device *dev,
383 struct device_attribute *devattr,
384 const char *buf,
385 size_t count)
386{
387 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
388 struct i2c_client *client = to_i2c_client(dev);
389 struct adt7473_data *data = i2c_get_clientdata(client);
390 long volt;
391
392 if (strict_strtol(buf, 10, &volt))
393 return -EINVAL;
394
395 volt = encode_volt(attr->index, volt);
396
397 mutex_lock(&data->lock);
398 data->volt_max[attr->index] = volt;
399 i2c_smbus_write_byte_data(client, ADT7473_REG_VOLT_MAX(attr->index),
400 volt);
401 mutex_unlock(&data->lock);
402
403 return count;
404}
405
406static ssize_t show_volt(struct device *dev, struct device_attribute *devattr,
407 char *buf)
408{
409 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
410 struct adt7473_data *data = adt7473_update_device(dev);
411
412 return sprintf(buf, "%d\n",
413 decode_volt(attr->index, data->volt[attr->index]));
414}
415
416/*
417 * This chip can report temperature data either as a two's complement
418 * number in the range -128 to 127, or as an unsigned number that must
419 * be offset by 64.
420 */
421static int decode_temp(u8 twos_complement, u8 raw)
422{
423 return twos_complement ? (s8)raw : raw - 64;
424}
425
426static u8 encode_temp(u8 twos_complement, int cooked)
427{
428 u8 ret = twos_complement ? cooked & 0xFF : cooked + 64;
429 return SENSORS_LIMIT(ret, 0, 255);
430}
431
432static ssize_t show_temp_min(struct device *dev,
433 struct device_attribute *devattr,
434 char *buf)
435{
436 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
437 struct adt7473_data *data = adt7473_update_device(dev);
438 return sprintf(buf, "%d\n", 1000 * decode_temp(
439 data->temp_twos_complement,
440 data->temp_min[attr->index]));
441}
442
443static ssize_t set_temp_min(struct device *dev,
444 struct device_attribute *devattr,
445 const char *buf,
446 size_t count)
447{
448 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
449 struct i2c_client *client = to_i2c_client(dev);
450 struct adt7473_data *data = i2c_get_clientdata(client);
451 long temp;
452
453 if (strict_strtol(buf, 10, &temp))
454 return -EINVAL;
455
456 temp = DIV_ROUND_CLOSEST(temp, 1000);
457 temp = encode_temp(data->temp_twos_complement, temp);
458
459 mutex_lock(&data->lock);
460 data->temp_min[attr->index] = temp;
461 i2c_smbus_write_byte_data(client, ADT7473_REG_TEMP_MIN(attr->index),
462 temp);
463 mutex_unlock(&data->lock);
464
465 return count;
466}
467
468static ssize_t show_temp_max(struct device *dev,
469 struct device_attribute *devattr,
470 char *buf)
471{
472 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
473 struct adt7473_data *data = adt7473_update_device(dev);
474 return sprintf(buf, "%d\n", 1000 * decode_temp(
475 data->temp_twos_complement,
476 data->temp_max[attr->index]));
477}
478
479static ssize_t set_temp_max(struct device *dev,
480 struct device_attribute *devattr,
481 const char *buf,
482 size_t count)
483{
484 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
485 struct i2c_client *client = to_i2c_client(dev);
486 struct adt7473_data *data = i2c_get_clientdata(client);
487 long temp;
488
489 if (strict_strtol(buf, 10, &temp))
490 return -EINVAL;
491
492 temp = DIV_ROUND_CLOSEST(temp, 1000);
493 temp = encode_temp(data->temp_twos_complement, temp);
494
495 mutex_lock(&data->lock);
496 data->temp_max[attr->index] = temp;
497 i2c_smbus_write_byte_data(client, ADT7473_REG_TEMP_MAX(attr->index),
498 temp);
499 mutex_unlock(&data->lock);
500
501 return count;
502}
503
504static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
505 char *buf)
506{
507 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
508 struct adt7473_data *data = adt7473_update_device(dev);
509 return sprintf(buf, "%d\n", 1000 * decode_temp(
510 data->temp_twos_complement,
511 data->temp[attr->index]));
512}
513
514static ssize_t show_fan_min(struct device *dev,
515 struct device_attribute *devattr,
516 char *buf)
517{
518 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
519 struct adt7473_data *data = adt7473_update_device(dev);
520
521 if (FAN_DATA_VALID(data->fan_min[attr->index]))
522 return sprintf(buf, "%d\n",
523 FAN_PERIOD_TO_RPM(data->fan_min[attr->index]));
524 else
525 return sprintf(buf, "0\n");
526}
527
528static ssize_t set_fan_min(struct device *dev,
529 struct device_attribute *devattr,
530 const char *buf, size_t count)
531{
532 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
533 struct i2c_client *client = to_i2c_client(dev);
534 struct adt7473_data *data = i2c_get_clientdata(client);
535 long temp;
536
537 if (strict_strtol(buf, 10, &temp) || !temp)
538 return -EINVAL;
539
540 temp = FAN_RPM_TO_PERIOD(temp);
541 temp = SENSORS_LIMIT(temp, 1, 65534);
542
543 mutex_lock(&data->lock);
544 data->fan_min[attr->index] = temp;
545 adt7473_write_word_data(client, ADT7473_REG_FAN_MIN(attr->index), temp);
546 mutex_unlock(&data->lock);
547
548 return count;
549}
550
551static ssize_t show_fan(struct device *dev, struct device_attribute *devattr,
552 char *buf)
553{
554 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
555 struct adt7473_data *data = adt7473_update_device(dev);
556
557 if (FAN_DATA_VALID(data->fan[attr->index]))
558 return sprintf(buf, "%d\n",
559 FAN_PERIOD_TO_RPM(data->fan[attr->index]));
560 else
561 return sprintf(buf, "0\n");
562}
563
564static ssize_t show_max_duty_at_crit(struct device *dev,
565 struct device_attribute *devattr,
566 char *buf)
567{
568 struct adt7473_data *data = adt7473_update_device(dev);
569 return sprintf(buf, "%d\n", data->max_duty_at_overheat);
570}
571
572static ssize_t set_max_duty_at_crit(struct device *dev,
573 struct device_attribute *devattr,
574 const char *buf,
575 size_t count)
576{
577 u8 reg;
578 struct i2c_client *client = to_i2c_client(dev);
579 struct adt7473_data *data = i2c_get_clientdata(client);
580 long temp;
581
582 if (strict_strtol(buf, 10, &temp))
583 return -EINVAL;
584
585 mutex_lock(&data->lock);
586 data->max_duty_at_overheat = !!temp;
587 reg = i2c_smbus_read_byte_data(client, ADT7473_REG_CFG4);
588 if (temp)
589 reg |= ADT7473_CFG4_MAX_DUTY_AT_OVT;
590 else
591 reg &= ~ADT7473_CFG4_MAX_DUTY_AT_OVT;
592 i2c_smbus_write_byte_data(client, ADT7473_REG_CFG4, reg);
593 mutex_unlock(&data->lock);
594
595 return count;
596}
597
598static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr,
599 char *buf)
600{
601 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
602 struct adt7473_data *data = adt7473_update_device(dev);
603 return sprintf(buf, "%d\n", data->pwm[attr->index]);
604}
605
606static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr,
607 const char *buf, size_t count)
608{
609 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
610 struct i2c_client *client = to_i2c_client(dev);
611 struct adt7473_data *data = i2c_get_clientdata(client);
612 long temp;
613
614 if (strict_strtol(buf, 10, &temp))
615 return -EINVAL;
616
617 temp = SENSORS_LIMIT(temp, 0, 255);
618
619 mutex_lock(&data->lock);
620 data->pwm[attr->index] = temp;
621 i2c_smbus_write_byte_data(client, ADT7473_REG_PWM(attr->index), temp);
622 mutex_unlock(&data->lock);
623
624 return count;
625}
626
627static ssize_t show_pwm_max(struct device *dev,
628 struct device_attribute *devattr,
629 char *buf)
630{
631 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
632 struct adt7473_data *data = adt7473_update_device(dev);
633 return sprintf(buf, "%d\n", data->pwm_max[attr->index]);
634}
635
636static ssize_t set_pwm_max(struct device *dev,
637 struct device_attribute *devattr,
638 const char *buf,
639 size_t count)
640{
641 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
642 struct i2c_client *client = to_i2c_client(dev);
643 struct adt7473_data *data = i2c_get_clientdata(client);
644 long temp;
645
646 if (strict_strtol(buf, 10, &temp))
647 return -EINVAL;
648
649 temp = SENSORS_LIMIT(temp, 0, 255);
650
651 mutex_lock(&data->lock);
652 data->pwm_max[attr->index] = temp;
653 i2c_smbus_write_byte_data(client, ADT7473_REG_PWM_MAX(attr->index),
654 temp);
655 mutex_unlock(&data->lock);
656
657 return count;
658}
659
660static ssize_t show_pwm_min(struct device *dev,
661 struct device_attribute *devattr,
662 char *buf)
663{
664 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
665 struct adt7473_data *data = adt7473_update_device(dev);
666 return sprintf(buf, "%d\n", data->pwm_min[attr->index]);
667}
668
669static ssize_t set_pwm_min(struct device *dev,
670 struct device_attribute *devattr,
671 const char *buf,
672 size_t count)
673{
674 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
675 struct i2c_client *client = to_i2c_client(dev);
676 struct adt7473_data *data = i2c_get_clientdata(client);
677 long temp;
678
679 if (strict_strtol(buf, 10, &temp))
680 return -EINVAL;
681
682 temp = SENSORS_LIMIT(temp, 0, 255);
683
684 mutex_lock(&data->lock);
685 data->pwm_min[attr->index] = temp;
686 i2c_smbus_write_byte_data(client, ADT7473_REG_PWM_MIN(attr->index),
687 temp);
688 mutex_unlock(&data->lock);
689
690 return count;
691}
692
693static ssize_t show_temp_tmax(struct device *dev,
694 struct device_attribute *devattr,
695 char *buf)
696{
697 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
698 struct adt7473_data *data = adt7473_update_device(dev);
699 return sprintf(buf, "%d\n", 1000 * decode_temp(
700 data->temp_twos_complement,
701 data->temp_tmax[attr->index]));
702}
703
704static ssize_t set_temp_tmax(struct device *dev,
705 struct device_attribute *devattr,
706 const char *buf,
707 size_t count)
708{
709 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
710 struct i2c_client *client = to_i2c_client(dev);
711 struct adt7473_data *data = i2c_get_clientdata(client);
712 long temp;
713
714 if (strict_strtol(buf, 10, &temp))
715 return -EINVAL;
716
717 temp = DIV_ROUND_CLOSEST(temp, 1000);
718 temp = encode_temp(data->temp_twos_complement, temp);
719
720 mutex_lock(&data->lock);
721 data->temp_tmax[attr->index] = temp;
722 i2c_smbus_write_byte_data(client, ADT7473_REG_TEMP_TMAX(attr->index),
723 temp);
724 mutex_unlock(&data->lock);
725
726 return count;
727}
728
729static ssize_t show_temp_tmin(struct device *dev,
730 struct device_attribute *devattr,
731 char *buf)
732{
733 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
734 struct adt7473_data *data = adt7473_update_device(dev);
735 return sprintf(buf, "%d\n", 1000 * decode_temp(
736 data->temp_twos_complement,
737 data->temp_tmin[attr->index]));
738}
739
740static ssize_t set_temp_tmin(struct device *dev,
741 struct device_attribute *devattr,
742 const char *buf,
743 size_t count)
744{
745 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
746 struct i2c_client *client = to_i2c_client(dev);
747 struct adt7473_data *data = i2c_get_clientdata(client);
748 long temp;
749
750 if (strict_strtol(buf, 10, &temp))
751 return -EINVAL;
752
753 temp = DIV_ROUND_CLOSEST(temp, 1000);
754 temp = encode_temp(data->temp_twos_complement, temp);
755
756 mutex_lock(&data->lock);
757 data->temp_tmin[attr->index] = temp;
758 i2c_smbus_write_byte_data(client, ADT7473_REG_TEMP_TMIN(attr->index),
759 temp);
760 mutex_unlock(&data->lock);
761
762 return count;
763}
764
765static ssize_t show_pwm_enable(struct device *dev,
766 struct device_attribute *devattr,
767 char *buf)
768{
769 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
770 struct adt7473_data *data = adt7473_update_device(dev);
771
772 switch (data->pwm_behavior[attr->index] >> ADT7473_PWM_BHVR_SHIFT) {
773 case 3:
774 return sprintf(buf, "0\n");
775 case 7:
776 return sprintf(buf, "1\n");
777 default:
778 return sprintf(buf, "2\n");
779 }
780}
781
782static ssize_t set_pwm_enable(struct device *dev,
783 struct device_attribute *devattr,
784 const char *buf,
785 size_t count)
786{
787 u8 reg;
788 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
789 struct i2c_client *client = to_i2c_client(dev);
790 struct adt7473_data *data = i2c_get_clientdata(client);
791 long temp;
792
793 if (strict_strtol(buf, 10, &temp))
794 return -EINVAL;
795
796 switch (temp) {
797 case 0:
798 temp = 3;
799 break;
800 case 1:
801 temp = 7;
802 break;
803 case 2:
804 /* Enter automatic mode with fans off */
805 temp = 4;
806 break;
807 default:
808 return -EINVAL;
809 }
810
811 mutex_lock(&data->lock);
812 reg = i2c_smbus_read_byte_data(client,
813 ADT7473_REG_PWM_BHVR(attr->index));
814 reg = (temp << ADT7473_PWM_BHVR_SHIFT) |
815 (reg & ~ADT7473_PWM_BHVR_MASK);
816 i2c_smbus_write_byte_data(client, ADT7473_REG_PWM_BHVR(attr->index),
817 reg);
818 data->pwm_behavior[attr->index] = reg;
819 mutex_unlock(&data->lock);
820
821 return count;
822}
823
824static ssize_t show_pwm_auto_temp(struct device *dev,
825 struct device_attribute *devattr,
826 char *buf)
827{
828 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
829 struct adt7473_data *data = adt7473_update_device(dev);
830 int bhvr = data->pwm_behavior[attr->index] >> ADT7473_PWM_BHVR_SHIFT;
831
832 switch (bhvr) {
833 case 3:
834 case 4:
835 case 7:
836 return sprintf(buf, "0\n");
837 case 0:
838 case 1:
839 case 5:
840 case 6:
841 return sprintf(buf, "%d\n", bhvr + 1);
842 case 2:
843 return sprintf(buf, "4\n");
844 }
845 /* shouldn't ever get here */
846 BUG();
847}
848
849static ssize_t set_pwm_auto_temp(struct device *dev,
850 struct device_attribute *devattr,
851 const char *buf,
852 size_t count)
853{
854 u8 reg;
855 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
856 struct i2c_client *client = to_i2c_client(dev);
857 struct adt7473_data *data = i2c_get_clientdata(client);
858 long temp;
859
860 if (strict_strtol(buf, 10, &temp))
861 return -EINVAL;
862
863 switch (temp) {
864 case 1:
865 case 2:
866 case 6:
867 case 7:
868 temp--;
869 break;
870 case 0:
871 temp = 4;
872 break;
873 default:
874 return -EINVAL;
875 }
876
877 mutex_lock(&data->lock);
878 reg = i2c_smbus_read_byte_data(client,
879 ADT7473_REG_PWM_BHVR(attr->index));
880 reg = (temp << ADT7473_PWM_BHVR_SHIFT) |
881 (reg & ~ADT7473_PWM_BHVR_MASK);
882 i2c_smbus_write_byte_data(client, ADT7473_REG_PWM_BHVR(attr->index),
883 reg);
884 data->pwm_behavior[attr->index] = reg;
885 mutex_unlock(&data->lock);
886
887 return count;
888}
889
890static ssize_t show_alarm(struct device *dev,
891 struct device_attribute *devattr,
892 char *buf)
893{
894 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
895 struct adt7473_data *data = adt7473_update_device(dev);
896
897 if (data->alarm & attr->index)
898 return sprintf(buf, "1\n");
899 else
900 return sprintf(buf, "0\n");
901}
902
903
904static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO, show_volt_max,
905 set_volt_max, 0);
906static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO, show_volt_max,
907 set_volt_max, 1);
908
909static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO, show_volt_min,
910 set_volt_min, 0);
911static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO, show_volt_min,
912 set_volt_min, 1);
913
914static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_volt, NULL, 0);
915static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_volt, NULL, 1);
916
917static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL,
918 ADT7473_VCCP_ALARM);
919static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL,
920 ADT7473_VCC_ALARM);
921
922static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp_max,
923 set_temp_max, 0);
924static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp_max,
925 set_temp_max, 1);
926static SENSOR_DEVICE_ATTR(temp3_max, S_IWUSR | S_IRUGO, show_temp_max,
927 set_temp_max, 2);
928
929static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp_min,
930 set_temp_min, 0);
931static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp_min,
932 set_temp_min, 1);
933static SENSOR_DEVICE_ATTR(temp3_min, S_IWUSR | S_IRUGO, show_temp_min,
934 set_temp_min, 2);
935
936static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
937static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1);
938static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2);
939
940static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL,
941 ADT7473_R1T_ALARM | ALARM2(ADT7473_R1T_SHORT));
942static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL,
943 ADT7473_LT_ALARM);
944static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL,
945 ADT7473_R2T_ALARM | ALARM2(ADT7473_R2T_SHORT));
946
947static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min,
948 set_fan_min, 0);
949static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min,
950 set_fan_min, 1);
951static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min,
952 set_fan_min, 2);
953static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO, show_fan_min,
954 set_fan_min, 3);
955
956static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0);
957static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1);
958static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2);
959static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3);
960
961static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL,
962 ALARM2(ADT7473_FAN1_ALARM));
963static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL,
964 ALARM2(ADT7473_FAN2_ALARM));
965static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL,
966 ALARM2(ADT7473_FAN3_ALARM));
967static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL,
968 ALARM2(ADT7473_FAN4_ALARM));
969
970static SENSOR_DEVICE_ATTR(pwm_use_point2_pwm_at_crit, S_IWUSR | S_IRUGO,
971 show_max_duty_at_crit, set_max_duty_at_crit, 0);
972
973static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 0);
974static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 1);
975static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 2);
976
977static SENSOR_DEVICE_ATTR(pwm1_auto_point1_pwm, S_IWUSR | S_IRUGO,
978 show_pwm_min, set_pwm_min, 0);
979static SENSOR_DEVICE_ATTR(pwm2_auto_point1_pwm, S_IWUSR | S_IRUGO,
980 show_pwm_min, set_pwm_min, 1);
981static SENSOR_DEVICE_ATTR(pwm3_auto_point1_pwm, S_IWUSR | S_IRUGO,
982 show_pwm_min, set_pwm_min, 2);
983
984static SENSOR_DEVICE_ATTR(pwm1_auto_point2_pwm, S_IWUSR | S_IRUGO,
985 show_pwm_max, set_pwm_max, 0);
986static SENSOR_DEVICE_ATTR(pwm2_auto_point2_pwm, S_IWUSR | S_IRUGO,
987 show_pwm_max, set_pwm_max, 1);
988static SENSOR_DEVICE_ATTR(pwm3_auto_point2_pwm, S_IWUSR | S_IRUGO,
989 show_pwm_max, set_pwm_max, 2);
990
991static SENSOR_DEVICE_ATTR(temp1_auto_point1_temp, S_IWUSR | S_IRUGO,
992 show_temp_tmin, set_temp_tmin, 0);
993static SENSOR_DEVICE_ATTR(temp2_auto_point1_temp, S_IWUSR | S_IRUGO,
994 show_temp_tmin, set_temp_tmin, 1);
995static SENSOR_DEVICE_ATTR(temp3_auto_point1_temp, S_IWUSR | S_IRUGO,
996 show_temp_tmin, set_temp_tmin, 2);
997
998static SENSOR_DEVICE_ATTR(temp1_auto_point2_temp, S_IWUSR | S_IRUGO,
999 show_temp_tmax, set_temp_tmax, 0);
1000static SENSOR_DEVICE_ATTR(temp2_auto_point2_temp, S_IWUSR | S_IRUGO,
1001 show_temp_tmax, set_temp_tmax, 1);
1002static SENSOR_DEVICE_ATTR(temp3_auto_point2_temp, S_IWUSR | S_IRUGO,
1003 show_temp_tmax, set_temp_tmax, 2);
1004
1005static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
1006 set_pwm_enable, 0);
1007static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
1008 set_pwm_enable, 1);
1009static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
1010 set_pwm_enable, 2);
1011
1012static SENSOR_DEVICE_ATTR(pwm1_auto_channels_temp, S_IWUSR | S_IRUGO,
1013 show_pwm_auto_temp, set_pwm_auto_temp, 0);
1014static SENSOR_DEVICE_ATTR(pwm2_auto_channels_temp, S_IWUSR | S_IRUGO,
1015 show_pwm_auto_temp, set_pwm_auto_temp, 1);
1016static SENSOR_DEVICE_ATTR(pwm3_auto_channels_temp, S_IWUSR | S_IRUGO,
1017 show_pwm_auto_temp, set_pwm_auto_temp, 2);
1018
1019static struct attribute *adt7473_attr[] =
1020{
1021 &sensor_dev_attr_in1_max.dev_attr.attr,
1022 &sensor_dev_attr_in2_max.dev_attr.attr,
1023 &sensor_dev_attr_in1_min.dev_attr.attr,
1024 &sensor_dev_attr_in2_min.dev_attr.attr,
1025 &sensor_dev_attr_in1_input.dev_attr.attr,
1026 &sensor_dev_attr_in2_input.dev_attr.attr,
1027 &sensor_dev_attr_in1_alarm.dev_attr.attr,
1028 &sensor_dev_attr_in2_alarm.dev_attr.attr,
1029
1030 &sensor_dev_attr_temp1_max.dev_attr.attr,
1031 &sensor_dev_attr_temp2_max.dev_attr.attr,
1032 &sensor_dev_attr_temp3_max.dev_attr.attr,
1033 &sensor_dev_attr_temp1_min.dev_attr.attr,
1034 &sensor_dev_attr_temp2_min.dev_attr.attr,
1035 &sensor_dev_attr_temp3_min.dev_attr.attr,
1036 &sensor_dev_attr_temp1_input.dev_attr.attr,
1037 &sensor_dev_attr_temp2_input.dev_attr.attr,
1038 &sensor_dev_attr_temp3_input.dev_attr.attr,
1039 &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1040 &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1041 &sensor_dev_attr_temp3_alarm.dev_attr.attr,
1042 &sensor_dev_attr_temp1_auto_point1_temp.dev_attr.attr,
1043 &sensor_dev_attr_temp2_auto_point1_temp.dev_attr.attr,
1044 &sensor_dev_attr_temp3_auto_point1_temp.dev_attr.attr,
1045 &sensor_dev_attr_temp1_auto_point2_temp.dev_attr.attr,
1046 &sensor_dev_attr_temp2_auto_point2_temp.dev_attr.attr,
1047 &sensor_dev_attr_temp3_auto_point2_temp.dev_attr.attr,
1048
1049 &sensor_dev_attr_fan1_min.dev_attr.attr,
1050 &sensor_dev_attr_fan2_min.dev_attr.attr,
1051 &sensor_dev_attr_fan3_min.dev_attr.attr,
1052 &sensor_dev_attr_fan4_min.dev_attr.attr,
1053 &sensor_dev_attr_fan1_input.dev_attr.attr,
1054 &sensor_dev_attr_fan2_input.dev_attr.attr,
1055 &sensor_dev_attr_fan3_input.dev_attr.attr,
1056 &sensor_dev_attr_fan4_input.dev_attr.attr,
1057 &sensor_dev_attr_fan1_alarm.dev_attr.attr,
1058 &sensor_dev_attr_fan2_alarm.dev_attr.attr,
1059 &sensor_dev_attr_fan3_alarm.dev_attr.attr,
1060 &sensor_dev_attr_fan4_alarm.dev_attr.attr,
1061
1062 &sensor_dev_attr_pwm_use_point2_pwm_at_crit.dev_attr.attr,
1063
1064 &sensor_dev_attr_pwm1.dev_attr.attr,
1065 &sensor_dev_attr_pwm2.dev_attr.attr,
1066 &sensor_dev_attr_pwm3.dev_attr.attr,
1067 &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr,
1068 &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr,
1069 &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr,
1070 &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr,
1071 &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr,
1072 &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr,
1073
1074 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
1075 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
1076 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
1077 &sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr,
1078 &sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr,
1079 &sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr,
1080
1081 NULL
1082};
1083
1084/* Return 0 if detection is successful, -ENODEV otherwise */
1085static int adt7473_detect(struct i2c_client *client,
1086 struct i2c_board_info *info)
1087{
1088 struct i2c_adapter *adapter = client->adapter;
1089 int vendor, device, revision;
1090
1091 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
1092 return -ENODEV;
1093
1094 vendor = i2c_smbus_read_byte_data(client, ADT7473_REG_VENDOR);
1095 if (vendor != ADT7473_VENDOR)
1096 return -ENODEV;
1097
1098 device = i2c_smbus_read_byte_data(client, ADT7473_REG_DEVICE);
1099 if (device != ADT7473_DEVICE)
1100 return -ENODEV;
1101
1102 revision = i2c_smbus_read_byte_data(client, ADT7473_REG_REVISION);
1103 if (revision != ADT7473_REV_68 && revision != ADT7473_REV_69)
1104 return -ENODEV;
1105
1106 strlcpy(info->type, "adt7473", I2C_NAME_SIZE);
1107
1108 return 0;
1109}
1110
1111static int adt7473_probe(struct i2c_client *client,
1112 const struct i2c_device_id *id)
1113{
1114 struct adt7473_data *data;
1115 int err;
1116
1117 data = kzalloc(sizeof(struct adt7473_data), GFP_KERNEL);
1118 if (!data) {
1119 err = -ENOMEM;
1120 goto exit;
1121 }
1122
1123 i2c_set_clientdata(client, data);
1124 mutex_init(&data->lock);
1125
1126 dev_info(&client->dev, "%s chip found\n", client->name);
1127
1128 /* Initialize the ADT7473 chip */
1129 adt7473_init_client(client);
1130
1131 /* Register sysfs hooks */
1132 data->attrs.attrs = adt7473_attr;
1133 err = sysfs_create_group(&client->dev.kobj, &data->attrs);
1134 if (err)
1135 goto exit_free;
1136
1137 data->hwmon_dev = hwmon_device_register(&client->dev);
1138 if (IS_ERR(data->hwmon_dev)) {
1139 err = PTR_ERR(data->hwmon_dev);
1140 goto exit_remove;
1141 }
1142
1143 return 0;
1144
1145exit_remove:
1146 sysfs_remove_group(&client->dev.kobj, &data->attrs);
1147exit_free:
1148 kfree(data);
1149exit:
1150 return err;
1151}
1152
1153static int adt7473_remove(struct i2c_client *client)
1154{
1155 struct adt7473_data *data = i2c_get_clientdata(client);
1156
1157 hwmon_device_unregister(data->hwmon_dev);
1158 sysfs_remove_group(&client->dev.kobj, &data->attrs);
1159 kfree(data);
1160 return 0;
1161}
1162
1163static int __init adt7473_init(void)
1164{
1165 pr_notice("The adt7473 driver is deprecated, please use the adt7475 "
1166 "driver instead\n");
1167 return i2c_add_driver(&adt7473_driver);
1168}
1169
1170static void __exit adt7473_exit(void)
1171{
1172 i2c_del_driver(&adt7473_driver);
1173}
1174
1175MODULE_AUTHOR("Darrick J. Wong <djwong@us.ibm.com>");
1176MODULE_DESCRIPTION("ADT7473 driver");
1177MODULE_LICENSE("GPL");
1178
1179module_init(adt7473_init);
1180module_exit(adt7473_exit);
generated by cgit v1.2.2 (git 2.25.0) at 2025-10-29 08:55:35 -0400