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n_tty: Reduce branching in canon_copy_from_read_buf()
[linux/fpc-iii.git] / drivers / hwmon / adm1026.c
blobe67b9a50ac7cbcda9e820117940ab294f5eb2dea
1 /*
2 * adm1026.c - Part of lm_sensors, Linux kernel modules for hardware
3 * monitoring
4 * Copyright (C) 2002, 2003 Philip Pokorny <ppokorny@penguincomputing.com>
5 * Copyright (C) 2004 Justin Thiessen <jthiessen@penguincomputing.com>
6 *
7 * Chip details at:
8 *
9 * <http://www.onsemi.com/PowerSolutions/product.do?id=ADM1026>
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 */
25
26 #include <linux/module.h>
27 #include <linux/init.h>
28 #include <linux/slab.h>
29 #include <linux/jiffies.h>
30 #include <linux/i2c.h>
31 #include <linux/hwmon.h>
32 #include <linux/hwmon-sysfs.h>
33 #include <linux/hwmon-vid.h>
34 #include <linux/err.h>
35 #include <linux/mutex.h>
36
37 /* Addresses to scan */
38 static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
39
40 static int gpio_input[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
41 -1, -1, -1, -1, -1, -1, -1, -1 };
42 static int gpio_output[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
43 -1, -1, -1, -1, -1, -1, -1, -1 };
44 static int gpio_inverted[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
45 -1, -1, -1, -1, -1, -1, -1, -1 };
46 static int gpio_normal[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
47 -1, -1, -1, -1, -1, -1, -1, -1 };
48 static int gpio_fan[8] = { -1, -1, -1, -1, -1, -1, -1, -1 };
49 module_param_array(gpio_input, int, NULL, 0);
50 MODULE_PARM_DESC(gpio_input, "List of GPIO pins (0-16) to program as inputs");
51 module_param_array(gpio_output, int, NULL, 0);
52 MODULE_PARM_DESC(gpio_output,
53 "List of GPIO pins (0-16) to program as outputs");
54 module_param_array(gpio_inverted, int, NULL, 0);
55 MODULE_PARM_DESC(gpio_inverted,
56 "List of GPIO pins (0-16) to program as inverted");
57 module_param_array(gpio_normal, int, NULL, 0);
58 MODULE_PARM_DESC(gpio_normal,
59 "List of GPIO pins (0-16) to program as normal/non-inverted");
60 module_param_array(gpio_fan, int, NULL, 0);
61 MODULE_PARM_DESC(gpio_fan, "List of GPIO pins (0-7) to program as fan tachs");
62
63 /* Many ADM1026 constants specified below */
64
65 /* The ADM1026 registers */
66 #define ADM1026_REG_CONFIG1 0x00
67 #define CFG1_MONITOR 0x01
68 #define CFG1_INT_ENABLE 0x02
69 #define CFG1_INT_CLEAR 0x04
70 #define CFG1_AIN8_9 0x08
71 #define CFG1_THERM_HOT 0x10
72 #define CFG1_DAC_AFC 0x20
73 #define CFG1_PWM_AFC 0x40
74 #define CFG1_RESET 0x80
75
76 #define ADM1026_REG_CONFIG2 0x01
77 /* CONFIG2 controls FAN0/GPIO0 through FAN7/GPIO7 */
78
79 #define ADM1026_REG_CONFIG3 0x07
80 #define CFG3_GPIO16_ENABLE 0x01
81 #define CFG3_CI_CLEAR 0x02
82 #define CFG3_VREF_250 0x04
83 #define CFG3_GPIO16_DIR 0x40
84 #define CFG3_GPIO16_POL 0x80
85
86 #define ADM1026_REG_E2CONFIG 0x13
87 #define E2CFG_READ 0x01
88 #define E2CFG_WRITE 0x02
89 #define E2CFG_ERASE 0x04
90 #define E2CFG_ROM 0x08
91 #define E2CFG_CLK_EXT 0x80
92
93 /*
94 * There are 10 general analog inputs and 7 dedicated inputs
95 * They are:
96 * 0 - 9 = AIN0 - AIN9
97 * 10 = Vbat
98 * 11 = 3.3V Standby
99 * 12 = 3.3V Main
100 * 13 = +5V
101 * 14 = Vccp (CPU core voltage)
102 * 15 = +12V
103 * 16 = -12V
104 */
105 static u16 ADM1026_REG_IN[] = {
106 0x30, 0x31, 0x32, 0x33, 0x34, 0x35,
107 0x36, 0x37, 0x27, 0x29, 0x26, 0x2a,
108 0x2b, 0x2c, 0x2d, 0x2e, 0x2f
109 };
110 static u16 ADM1026_REG_IN_MIN[] = {
111 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d,
112 0x5e, 0x5f, 0x6d, 0x49, 0x6b, 0x4a,
113 0x4b, 0x4c, 0x4d, 0x4e, 0x4f
114 };
115 static u16 ADM1026_REG_IN_MAX[] = {
116 0x50, 0x51, 0x52, 0x53, 0x54, 0x55,
117 0x56, 0x57, 0x6c, 0x41, 0x6a, 0x42,
118 0x43, 0x44, 0x45, 0x46, 0x47
119 };
120
121 /*
122 * Temperatures are:
123 * 0 - Internal
124 * 1 - External 1
125 * 2 - External 2
126 */
127 static u16 ADM1026_REG_TEMP[] = { 0x1f, 0x28, 0x29 };
128 static u16 ADM1026_REG_TEMP_MIN[] = { 0x69, 0x48, 0x49 };
129 static u16 ADM1026_REG_TEMP_MAX[] = { 0x68, 0x40, 0x41 };
130 static u16 ADM1026_REG_TEMP_TMIN[] = { 0x10, 0x11, 0x12 };
131 static u16 ADM1026_REG_TEMP_THERM[] = { 0x0d, 0x0e, 0x0f };
132 static u16 ADM1026_REG_TEMP_OFFSET[] = { 0x1e, 0x6e, 0x6f };
133
134 #define ADM1026_REG_FAN(nr) (0x38 + (nr))
135 #define ADM1026_REG_FAN_MIN(nr) (0x60 + (nr))
136 #define ADM1026_REG_FAN_DIV_0_3 0x02
137 #define ADM1026_REG_FAN_DIV_4_7 0x03
138
139 #define ADM1026_REG_DAC 0x04
140 #define ADM1026_REG_PWM 0x05
141
142 #define ADM1026_REG_GPIO_CFG_0_3 0x08
143 #define ADM1026_REG_GPIO_CFG_4_7 0x09
144 #define ADM1026_REG_GPIO_CFG_8_11 0x0a
145 #define ADM1026_REG_GPIO_CFG_12_15 0x0b
146 /* CFG_16 in REG_CFG3 */
147 #define ADM1026_REG_GPIO_STATUS_0_7 0x24
148 #define ADM1026_REG_GPIO_STATUS_8_15 0x25
149 /* STATUS_16 in REG_STATUS4 */
150 #define ADM1026_REG_GPIO_MASK_0_7 0x1c
151 #define ADM1026_REG_GPIO_MASK_8_15 0x1d
152 /* MASK_16 in REG_MASK4 */
153
154 #define ADM1026_REG_COMPANY 0x16
155 #define ADM1026_REG_VERSTEP 0x17
156 /* These are the recognized values for the above regs */
157 #define ADM1026_COMPANY_ANALOG_DEV 0x41
158 #define ADM1026_VERSTEP_GENERIC 0x40
159 #define ADM1026_VERSTEP_ADM1026 0x44
160
161 #define ADM1026_REG_MASK1 0x18
162 #define ADM1026_REG_MASK2 0x19
163 #define ADM1026_REG_MASK3 0x1a
164 #define ADM1026_REG_MASK4 0x1b
165
166 #define ADM1026_REG_STATUS1 0x20
167 #define ADM1026_REG_STATUS2 0x21
168 #define ADM1026_REG_STATUS3 0x22
169 #define ADM1026_REG_STATUS4 0x23
170
171 #define ADM1026_FAN_ACTIVATION_TEMP_HYST -6
172 #define ADM1026_FAN_CONTROL_TEMP_RANGE 20
173 #define ADM1026_PWM_MAX 255
174
175 /*
176 * Conversions. Rounding and limit checking is only done on the TO_REG
177 * variants. Note that you should be a bit careful with which arguments
178 * these macros are called: arguments may be evaluated more than once.
179 */
180
181 /*
182 * IN are scaled according to built-in resistors. These are the
183 * voltages corresponding to 3/4 of full scale (192 or 0xc0)
184 * NOTE: The -12V input needs an additional factor to account
185 * for the Vref pullup resistor.
186 * NEG12_OFFSET = SCALE * Vref / V-192 - Vref
187 * = 13875 * 2.50 / 1.875 - 2500
188 * = 16000
189 *
190 * The values in this table are based on Table II, page 15 of the
191 * datasheet.
192 */
193 static int adm1026_scaling[] = { /* .001 Volts */
194 2250, 2250, 2250, 2250, 2250, 2250,
195 1875, 1875, 1875, 1875, 3000, 3330,
196 3330, 4995, 2250, 12000, 13875
197 };
198 #define NEG12_OFFSET 16000
199 #define SCALE(val, from, to) (((val)*(to) + ((from)/2))/(from))
200 #define INS_TO_REG(n, val) (clamp_val(SCALE(val, adm1026_scaling[n], 192),\
201 0, 255))
202 #define INS_FROM_REG(n, val) (SCALE(val, 192, adm1026_scaling[n]))
203
204 /*
205 * FAN speed is measured using 22.5kHz clock and counts for 2 pulses
206 * and we assume a 2 pulse-per-rev fan tach signal
207 * 22500 kHz * 60 (sec/min) * 2 (pulse) / 2 (pulse/rev) == 1350000
208 */
209 #define FAN_TO_REG(val, div) ((val) <= 0 ? 0xff : \
210 clamp_val(1350000 / ((val) * (div)), \
211 1, 254))
212 #define FAN_FROM_REG(val, div) ((val) == 0 ? -1 : (val) == 0xff ? 0 : \
213 1350000 / ((val) * (div)))
214 #define DIV_FROM_REG(val) (1 << (val))
215 #define DIV_TO_REG(val) ((val) >= 8 ? 3 : (val) >= 4 ? 2 : (val) >= 2 ? 1 : 0)
216
217 /* Temperature is reported in 1 degC increments */
218 #define TEMP_TO_REG(val) (clamp_val(((val) + ((val) < 0 ? -500 : 500)) \
219 / 1000, -127, 127))
220 #define TEMP_FROM_REG(val) ((val) * 1000)
221 #define OFFSET_TO_REG(val) (clamp_val(((val) + ((val) < 0 ? -500 : 500)) \
222 / 1000, -127, 127))
223 #define OFFSET_FROM_REG(val) ((val) * 1000)
224
225 #define PWM_TO_REG(val) (clamp_val(val, 0, 255))
226 #define PWM_FROM_REG(val) (val)
227
228 #define PWM_MIN_TO_REG(val) ((val) & 0xf0)
229 #define PWM_MIN_FROM_REG(val) (((val) & 0xf0) + ((val) >> 4))
230
231 /*
232 * Analog output is a voltage, and scaled to millivolts. The datasheet
233 * indicates that the DAC could be used to drive the fans, but in our
234 * example board (Arima HDAMA) it isn't connected to the fans at all.
235 */
236 #define DAC_TO_REG(val) (clamp_val(((((val) * 255) + 500) / 2500), 0, 255))
237 #define DAC_FROM_REG(val) (((val) * 2500) / 255)
238
239 /*
240 * Chip sampling rates
241 *
242 * Some sensors are not updated more frequently than once per second
243 * so it doesn't make sense to read them more often than that.
244 * We cache the results and return the saved data if the driver
245 * is called again before a second has elapsed.
246 *
247 * Also, there is significant configuration data for this chip
248 * So, we keep the config data up to date in the cache
249 * when it is written and only sample it once every 5 *minutes*
250 */
251 #define ADM1026_DATA_INTERVAL (1 * HZ)
252 #define ADM1026_CONFIG_INTERVAL (5 * 60 * HZ)
253
254 /*
255 * We allow for multiple chips in a single system.
256 *
257 * For each registered ADM1026, we need to keep state information
258 * at client->data. The adm1026_data structure is dynamically
259 * allocated, when a new client structure is allocated.
260 */
261
262 struct pwm_data {
263 u8 pwm;
264 u8 enable;
265 u8 auto_pwm_min;
266 };
267
268 struct adm1026_data {
269 struct i2c_client *client;
270 const struct attribute_group *groups[3];
271
272 struct mutex update_lock;
273 int valid; /* !=0 if following fields are valid */
274 unsigned long last_reading; /* In jiffies */
275 unsigned long last_config; /* In jiffies */
276
277 u8 in[17]; /* Register value */
278 u8 in_max[17]; /* Register value */
279 u8 in_min[17]; /* Register value */
280 s8 temp[3]; /* Register value */
281 s8 temp_min[3]; /* Register value */
282 s8 temp_max[3]; /* Register value */
283 s8 temp_tmin[3]; /* Register value */
284 s8 temp_crit[3]; /* Register value */
285 s8 temp_offset[3]; /* Register value */
286 u8 fan[8]; /* Register value */
287 u8 fan_min[8]; /* Register value */
288 u8 fan_div[8]; /* Decoded value */
289 struct pwm_data pwm1; /* Pwm control values */
290 u8 vrm; /* VRM version */
291 u8 analog_out; /* Register value (DAC) */
292 long alarms; /* Register encoding, combined */
293 long alarm_mask; /* Register encoding, combined */
294 long gpio; /* Register encoding, combined */
295 long gpio_mask; /* Register encoding, combined */
296 u8 gpio_config[17]; /* Decoded value */
297 u8 config1; /* Register value */
298 u8 config2; /* Register value */
299 u8 config3; /* Register value */
300 };
301
302 static int adm1026_read_value(struct i2c_client *client, u8 reg)
303 {
304 int res;
305
306 if (reg < 0x80) {
307 /* "RAM" locations */
308 res = i2c_smbus_read_byte_data(client, reg) & 0xff;
309 } else {
310 /* EEPROM, do nothing */
311 res = 0;
312 }
313 return res;
314 }
315
316 static int adm1026_write_value(struct i2c_client *client, u8 reg, int value)
317 {
318 int res;
319
320 if (reg < 0x80) {
321 /* "RAM" locations */
322 res = i2c_smbus_write_byte_data(client, reg, value);
323 } else {
324 /* EEPROM, do nothing */
325 res = 0;
326 }
327 return res;
328 }
329
330 static struct adm1026_data *adm1026_update_device(struct device *dev)
331 {
332 struct adm1026_data *data = dev_get_drvdata(dev);
333 struct i2c_client *client = data->client;
334 int i;
335 long value, alarms, gpio;
336
337 mutex_lock(&data->update_lock);
338 if (!data->valid
339 || time_after(jiffies,
340 data->last_reading + ADM1026_DATA_INTERVAL)) {
341 /* Things that change quickly */
342 dev_dbg(&client->dev, "Reading sensor values\n");
343 for (i = 0; i <= 16; ++i) {
344 data->in[i] =
345 adm1026_read_value(client, ADM1026_REG_IN[i]);
346 }
347
348 for (i = 0; i <= 7; ++i) {
349 data->fan[i] =
350 adm1026_read_value(client, ADM1026_REG_FAN(i));
351 }
352
353 for (i = 0; i <= 2; ++i) {
354 /*
355 * NOTE: temp[] is s8 and we assume 2's complement
356 * "conversion" in the assignment
357 */
358 data->temp[i] =
359 adm1026_read_value(client, ADM1026_REG_TEMP[i]);
360 }
361
362 data->pwm1.pwm = adm1026_read_value(client,
363 ADM1026_REG_PWM);
364 data->analog_out = adm1026_read_value(client,
365 ADM1026_REG_DAC);
366 /* GPIO16 is MSbit of alarms, move it to gpio */
367 alarms = adm1026_read_value(client, ADM1026_REG_STATUS4);
368 gpio = alarms & 0x80 ? 0x0100 : 0; /* GPIO16 */
369 alarms &= 0x7f;
370 alarms <<= 8;
371 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS3);
372 alarms <<= 8;
373 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS2);
374 alarms <<= 8;
375 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS1);
376 data->alarms = alarms;
377
378 /* Read the GPIO values */
379 gpio |= adm1026_read_value(client,
380 ADM1026_REG_GPIO_STATUS_8_15);
381 gpio <<= 8;
382 gpio |= adm1026_read_value(client,
383 ADM1026_REG_GPIO_STATUS_0_7);
384 data->gpio = gpio;
385
386 data->last_reading = jiffies;
387 } /* last_reading */
388
389 if (!data->valid ||
390 time_after(jiffies, data->last_config + ADM1026_CONFIG_INTERVAL)) {
391 /* Things that don't change often */
392 dev_dbg(&client->dev, "Reading config values\n");
393 for (i = 0; i <= 16; ++i) {
394 data->in_min[i] = adm1026_read_value(client,
395 ADM1026_REG_IN_MIN[i]);
396 data->in_max[i] = adm1026_read_value(client,
397 ADM1026_REG_IN_MAX[i]);
398 }
399
400 value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3)
401 | (adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7)
402 << 8);
403 for (i = 0; i <= 7; ++i) {
404 data->fan_min[i] = adm1026_read_value(client,
405 ADM1026_REG_FAN_MIN(i));
406 data->fan_div[i] = DIV_FROM_REG(value & 0x03);
407 value >>= 2;
408 }
409
410 for (i = 0; i <= 2; ++i) {
411 /*
412 * NOTE: temp_xxx[] are s8 and we assume 2's
413 * complement "conversion" in the assignment
414 */
415 data->temp_min[i] = adm1026_read_value(client,
416 ADM1026_REG_TEMP_MIN[i]);
417 data->temp_max[i] = adm1026_read_value(client,
418 ADM1026_REG_TEMP_MAX[i]);
419 data->temp_tmin[i] = adm1026_read_value(client,
420 ADM1026_REG_TEMP_TMIN[i]);
421 data->temp_crit[i] = adm1026_read_value(client,
422 ADM1026_REG_TEMP_THERM[i]);
423 data->temp_offset[i] = adm1026_read_value(client,
424 ADM1026_REG_TEMP_OFFSET[i]);
425 }
426
427 /* Read the STATUS/alarm masks */
428 alarms = adm1026_read_value(client, ADM1026_REG_MASK4);
429 gpio = alarms & 0x80 ? 0x0100 : 0; /* GPIO16 */
430 alarms = (alarms & 0x7f) << 8;
431 alarms |= adm1026_read_value(client, ADM1026_REG_MASK3);
432 alarms <<= 8;
433 alarms |= adm1026_read_value(client, ADM1026_REG_MASK2);
434 alarms <<= 8;
435 alarms |= adm1026_read_value(client, ADM1026_REG_MASK1);
436 data->alarm_mask = alarms;
437
438 /* Read the GPIO values */
439 gpio |= adm1026_read_value(client,
440 ADM1026_REG_GPIO_MASK_8_15);
441 gpio <<= 8;
442 gpio |= adm1026_read_value(client, ADM1026_REG_GPIO_MASK_0_7);
443 data->gpio_mask = gpio;
444
445 /* Read various values from CONFIG1 */
446 data->config1 = adm1026_read_value(client,
447 ADM1026_REG_CONFIG1);
448 if (data->config1 & CFG1_PWM_AFC) {
449 data->pwm1.enable = 2;
450 data->pwm1.auto_pwm_min =
451 PWM_MIN_FROM_REG(data->pwm1.pwm);
452 }
453 /* Read the GPIO config */
454 data->config2 = adm1026_read_value(client,
455 ADM1026_REG_CONFIG2);
456 data->config3 = adm1026_read_value(client,
457 ADM1026_REG_CONFIG3);
458 data->gpio_config[16] = (data->config3 >> 6) & 0x03;
459
460 value = 0;
461 for (i = 0; i <= 15; ++i) {
462 if ((i & 0x03) == 0) {
463 value = adm1026_read_value(client,
464 ADM1026_REG_GPIO_CFG_0_3 + i/4);
465 }
466 data->gpio_config[i] = value & 0x03;
467 value >>= 2;
468 }
469
470 data->last_config = jiffies;
471 } /* last_config */
472
473 data->valid = 1;
474 mutex_unlock(&data->update_lock);
475 return data;
476 }
477
478 static ssize_t show_in(struct device *dev, struct device_attribute *attr,
479 char *buf)
480 {
481 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
482 int nr = sensor_attr->index;
483 struct adm1026_data *data = adm1026_update_device(dev);
484 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in[nr]));
485 }
486 static ssize_t show_in_min(struct device *dev, struct device_attribute *attr,
487 char *buf)
488 {
489 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
490 int nr = sensor_attr->index;
491 struct adm1026_data *data = adm1026_update_device(dev);
492 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_min[nr]));
493 }
494 static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
495 const char *buf, size_t count)
496 {
497 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
498 int nr = sensor_attr->index;
499 struct adm1026_data *data = dev_get_drvdata(dev);
500 struct i2c_client *client = data->client;
501 long val;
502 int err;
503
504 err = kstrtol(buf, 10, &val);
505 if (err)
506 return err;
507
508 mutex_lock(&data->update_lock);
509 data->in_min[nr] = INS_TO_REG(nr, val);
510 adm1026_write_value(client, ADM1026_REG_IN_MIN[nr], data->in_min[nr]);
511 mutex_unlock(&data->update_lock);
512 return count;
513 }
514 static ssize_t show_in_max(struct device *dev, struct device_attribute *attr,
515 char *buf)
516 {
517 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
518 int nr = sensor_attr->index;
519 struct adm1026_data *data = adm1026_update_device(dev);
520 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_max[nr]));
521 }
522 static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
523 const char *buf, size_t count)
524 {
525 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
526 int nr = sensor_attr->index;
527 struct adm1026_data *data = dev_get_drvdata(dev);
528 struct i2c_client *client = data->client;
529 long val;
530 int err;
531
532 err = kstrtol(buf, 10, &val);
533 if (err)
534 return err;
535
536 mutex_lock(&data->update_lock);
537 data->in_max[nr] = INS_TO_REG(nr, val);
538 adm1026_write_value(client, ADM1026_REG_IN_MAX[nr], data->in_max[nr]);
539 mutex_unlock(&data->update_lock);
540 return count;
541 }
542
543 #define in_reg(offset) \
544 static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in, \
545 NULL, offset); \
546 static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \
547 show_in_min, set_in_min, offset); \
548 static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \
549 show_in_max, set_in_max, offset);
550
551
552 in_reg(0);
553 in_reg(1);
554 in_reg(2);
555 in_reg(3);
556 in_reg(4);
557 in_reg(5);
558 in_reg(6);
559 in_reg(7);
560 in_reg(8);
561 in_reg(9);
562 in_reg(10);
563 in_reg(11);
564 in_reg(12);
565 in_reg(13);
566 in_reg(14);
567 in_reg(15);
568
569 static ssize_t show_in16(struct device *dev, struct device_attribute *attr,
570 char *buf)
571 {
572 struct adm1026_data *data = adm1026_update_device(dev);
573 return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in[16]) -
574 NEG12_OFFSET);
575 }
576 static ssize_t show_in16_min(struct device *dev, struct device_attribute *attr,
577 char *buf)
578 {
579 struct adm1026_data *data = adm1026_update_device(dev);
580 return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in_min[16])
581 - NEG12_OFFSET);
582 }
583 static ssize_t set_in16_min(struct device *dev, struct device_attribute *attr,
584 const char *buf, size_t count)
585 {
586 struct adm1026_data *data = dev_get_drvdata(dev);
587 struct i2c_client *client = data->client;
588 long val;
589 int err;
590
591 err = kstrtol(buf, 10, &val);
592 if (err)
593 return err;
594
595 mutex_lock(&data->update_lock);
596 data->in_min[16] = INS_TO_REG(16, val + NEG12_OFFSET);
597 adm1026_write_value(client, ADM1026_REG_IN_MIN[16], data->in_min[16]);
598 mutex_unlock(&data->update_lock);
599 return count;
600 }
601 static ssize_t show_in16_max(struct device *dev, struct device_attribute *attr,
602 char *buf)
603 {
604 struct adm1026_data *data = adm1026_update_device(dev);
605 return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in_max[16])
606 - NEG12_OFFSET);
607 }
608 static ssize_t set_in16_max(struct device *dev, struct device_attribute *attr,
609 const char *buf, size_t count)
610 {
611 struct adm1026_data *data = dev_get_drvdata(dev);
612 struct i2c_client *client = data->client;
613 long val;
614 int err;
615
616 err = kstrtol(buf, 10, &val);
617 if (err)
618 return err;
619
620 mutex_lock(&data->update_lock);
621 data->in_max[16] = INS_TO_REG(16, val+NEG12_OFFSET);
622 adm1026_write_value(client, ADM1026_REG_IN_MAX[16], data->in_max[16]);
623 mutex_unlock(&data->update_lock);
624 return count;
625 }
626
627 static SENSOR_DEVICE_ATTR(in16_input, S_IRUGO, show_in16, NULL, 16);
628 static SENSOR_DEVICE_ATTR(in16_min, S_IRUGO | S_IWUSR, show_in16_min,
629 set_in16_min, 16);
630 static SENSOR_DEVICE_ATTR(in16_max, S_IRUGO | S_IWUSR, show_in16_max,
631 set_in16_max, 16);
632
633
634 /* Now add fan read/write functions */
635
636 static ssize_t show_fan(struct device *dev, struct device_attribute *attr,
637 char *buf)
638 {
639 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
640 int nr = sensor_attr->index;
641 struct adm1026_data *data = adm1026_update_device(dev);
642 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr],
643 data->fan_div[nr]));
644 }
645 static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr,
646 char *buf)
647 {
648 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
649 int nr = sensor_attr->index;
650 struct adm1026_data *data = adm1026_update_device(dev);
651 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr],
652 data->fan_div[nr]));
653 }
654 static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
655 const char *buf, size_t count)
656 {
657 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
658 int nr = sensor_attr->index;
659 struct adm1026_data *data = dev_get_drvdata(dev);
660 struct i2c_client *client = data->client;
661 long val;
662 int err;
663
664 err = kstrtol(buf, 10, &val);
665 if (err)
666 return err;
667
668 mutex_lock(&data->update_lock);
669 data->fan_min[nr] = FAN_TO_REG(val, data->fan_div[nr]);
670 adm1026_write_value(client, ADM1026_REG_FAN_MIN(nr),
671 data->fan_min[nr]);
672 mutex_unlock(&data->update_lock);
673 return count;
674 }
675
676 #define fan_offset(offset) \
677 static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan, NULL, \
678 offset - 1); \
679 static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
680 show_fan_min, set_fan_min, offset - 1);
681
682 fan_offset(1);
683 fan_offset(2);
684 fan_offset(3);
685 fan_offset(4);
686 fan_offset(5);
687 fan_offset(6);
688 fan_offset(7);
689 fan_offset(8);
690
691 /* Adjust fan_min to account for new fan divisor */
692 static void fixup_fan_min(struct device *dev, int fan, int old_div)
693 {
694 struct adm1026_data *data = dev_get_drvdata(dev);
695 struct i2c_client *client = data->client;
696 int new_min;
697 int new_div = data->fan_div[fan];
698
699 /* 0 and 0xff are special. Don't adjust them */
700 if (data->fan_min[fan] == 0 || data->fan_min[fan] == 0xff)
701 return;
702
703 new_min = data->fan_min[fan] * old_div / new_div;
704 new_min = clamp_val(new_min, 1, 254);
705 data->fan_min[fan] = new_min;
706 adm1026_write_value(client, ADM1026_REG_FAN_MIN(fan), new_min);
707 }
708
709 /* Now add fan_div read/write functions */
710 static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr,
711 char *buf)
712 {
713 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
714 int nr = sensor_attr->index;
715 struct adm1026_data *data = adm1026_update_device(dev);
716 return sprintf(buf, "%d\n", data->fan_div[nr]);
717 }
718 static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
719 const char *buf, size_t count)
720 {
721 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
722 int nr = sensor_attr->index;
723 struct adm1026_data *data = dev_get_drvdata(dev);
724 struct i2c_client *client = data->client;
725 long val;
726 int orig_div, new_div;
727 int err;
728
729 err = kstrtol(buf, 10, &val);
730 if (err)
731 return err;
732
733 new_div = DIV_TO_REG(val);
734
735 mutex_lock(&data->update_lock);
736 orig_div = data->fan_div[nr];
737 data->fan_div[nr] = DIV_FROM_REG(new_div);
738
739 if (nr < 4) { /* 0 <= nr < 4 */
740 adm1026_write_value(client, ADM1026_REG_FAN_DIV_0_3,
741 (DIV_TO_REG(data->fan_div[0]) << 0) |
742 (DIV_TO_REG(data->fan_div[1]) << 2) |
743 (DIV_TO_REG(data->fan_div[2]) << 4) |
744 (DIV_TO_REG(data->fan_div[3]) << 6));
745 } else { /* 3 < nr < 8 */
746 adm1026_write_value(client, ADM1026_REG_FAN_DIV_4_7,
747 (DIV_TO_REG(data->fan_div[4]) << 0) |
748 (DIV_TO_REG(data->fan_div[5]) << 2) |
749 (DIV_TO_REG(data->fan_div[6]) << 4) |
750 (DIV_TO_REG(data->fan_div[7]) << 6));
751 }
752
753 if (data->fan_div[nr] != orig_div)
754 fixup_fan_min(dev, nr, orig_div);
755
756 mutex_unlock(&data->update_lock);
757 return count;
758 }
759
760 #define fan_offset_div(offset) \
761 static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \
762 show_fan_div, set_fan_div, offset - 1);
763
764 fan_offset_div(1);
765 fan_offset_div(2);
766 fan_offset_div(3);
767 fan_offset_div(4);
768 fan_offset_div(5);
769 fan_offset_div(6);
770 fan_offset_div(7);
771 fan_offset_div(8);
772
773 /* Temps */
774 static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
775 char *buf)
776 {
777 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
778 int nr = sensor_attr->index;
779 struct adm1026_data *data = adm1026_update_device(dev);
780 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr]));
781 }
782 static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr,
783 char *buf)
784 {
785 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
786 int nr = sensor_attr->index;
787 struct adm1026_data *data = adm1026_update_device(dev);
788 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr]));
789 }
790 static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
791 const char *buf, size_t count)
792 {
793 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
794 int nr = sensor_attr->index;
795 struct adm1026_data *data = dev_get_drvdata(dev);
796 struct i2c_client *client = data->client;
797 long val;
798 int err;
799
800 err = kstrtol(buf, 10, &val);
801 if (err)
802 return err;
803
804 mutex_lock(&data->update_lock);
805 data->temp_min[nr] = TEMP_TO_REG(val);
806 adm1026_write_value(client, ADM1026_REG_TEMP_MIN[nr],
807 data->temp_min[nr]);
808 mutex_unlock(&data->update_lock);
809 return count;
810 }
811 static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr,
812 char *buf)
813 {
814 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
815 int nr = sensor_attr->index;
816 struct adm1026_data *data = adm1026_update_device(dev);
817 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr]));
818 }
819 static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
820 const char *buf, size_t count)
821 {
822 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
823 int nr = sensor_attr->index;
824 struct adm1026_data *data = dev_get_drvdata(dev);
825 struct i2c_client *client = data->client;
826 long val;
827 int err;
828
829 err = kstrtol(buf, 10, &val);
830 if (err)
831 return err;
832
833 mutex_lock(&data->update_lock);
834 data->temp_max[nr] = TEMP_TO_REG(val);
835 adm1026_write_value(client, ADM1026_REG_TEMP_MAX[nr],
836 data->temp_max[nr]);
837 mutex_unlock(&data->update_lock);
838 return count;
839 }
840
841 #define temp_reg(offset) \
842 static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp, \
843 NULL, offset - 1); \
844 static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \
845 show_temp_min, set_temp_min, offset - 1); \
846 static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \
847 show_temp_max, set_temp_max, offset - 1);
848
849
850 temp_reg(1);
851 temp_reg(2);
852 temp_reg(3);
853
854 static ssize_t show_temp_offset(struct device *dev,
855 struct device_attribute *attr, char *buf)
856 {
857 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
858 int nr = sensor_attr->index;
859 struct adm1026_data *data = adm1026_update_device(dev);
860 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_offset[nr]));
861 }
862 static ssize_t set_temp_offset(struct device *dev,
863 struct device_attribute *attr, const char *buf,
864 size_t count)
865 {
866 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
867 int nr = sensor_attr->index;
868 struct adm1026_data *data = dev_get_drvdata(dev);
869 struct i2c_client *client = data->client;
870 long val;
871 int err;
872
873 err = kstrtol(buf, 10, &val);
874 if (err)
875 return err;
876
877 mutex_lock(&data->update_lock);
878 data->temp_offset[nr] = TEMP_TO_REG(val);
879 adm1026_write_value(client, ADM1026_REG_TEMP_OFFSET[nr],
880 data->temp_offset[nr]);
881 mutex_unlock(&data->update_lock);
882 return count;
883 }
884
885 #define temp_offset_reg(offset) \
886 static SENSOR_DEVICE_ATTR(temp##offset##_offset, S_IRUGO | S_IWUSR, \
887 show_temp_offset, set_temp_offset, offset - 1);
888
889 temp_offset_reg(1);
890 temp_offset_reg(2);
891 temp_offset_reg(3);
892
893 static ssize_t show_temp_auto_point1_temp_hyst(struct device *dev,
894 struct device_attribute *attr, char *buf)
895 {
896 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
897 int nr = sensor_attr->index;
898 struct adm1026_data *data = adm1026_update_device(dev);
899 return sprintf(buf, "%d\n", TEMP_FROM_REG(
900 ADM1026_FAN_ACTIVATION_TEMP_HYST + data->temp_tmin[nr]));
901 }
902 static ssize_t show_temp_auto_point2_temp(struct device *dev,
903 struct device_attribute *attr, char *buf)
904 {
905 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
906 int nr = sensor_attr->index;
907 struct adm1026_data *data = adm1026_update_device(dev);
908 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_tmin[nr] +
909 ADM1026_FAN_CONTROL_TEMP_RANGE));
910 }
911 static ssize_t show_temp_auto_point1_temp(struct device *dev,
912 struct device_attribute *attr, char *buf)
913 {
914 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
915 int nr = sensor_attr->index;
916 struct adm1026_data *data = adm1026_update_device(dev);
917 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_tmin[nr]));
918 }
919 static ssize_t set_temp_auto_point1_temp(struct device *dev,
920 struct device_attribute *attr, const char *buf, size_t count)
921 {
922 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
923 int nr = sensor_attr->index;
924 struct adm1026_data *data = dev_get_drvdata(dev);
925 struct i2c_client *client = data->client;
926 long val;
927 int err;
928
929 err = kstrtol(buf, 10, &val);
930 if (err)
931 return err;
932
933 mutex_lock(&data->update_lock);
934 data->temp_tmin[nr] = TEMP_TO_REG(val);
935 adm1026_write_value(client, ADM1026_REG_TEMP_TMIN[nr],
936 data->temp_tmin[nr]);
937 mutex_unlock(&data->update_lock);
938 return count;
939 }
940
941 #define temp_auto_point(offset) \
942 static SENSOR_DEVICE_ATTR(temp##offset##_auto_point1_temp, \
943 S_IRUGO | S_IWUSR, show_temp_auto_point1_temp, \
944 set_temp_auto_point1_temp, offset - 1); \
945 static SENSOR_DEVICE_ATTR(temp##offset##_auto_point1_temp_hyst, S_IRUGO,\
946 show_temp_auto_point1_temp_hyst, NULL, offset - 1); \
947 static SENSOR_DEVICE_ATTR(temp##offset##_auto_point2_temp, S_IRUGO, \
948 show_temp_auto_point2_temp, NULL, offset - 1);
949
950 temp_auto_point(1);
951 temp_auto_point(2);
952 temp_auto_point(3);
953
954 static ssize_t show_temp_crit_enable(struct device *dev,
955 struct device_attribute *attr, char *buf)
956 {
957 struct adm1026_data *data = adm1026_update_device(dev);
958 return sprintf(buf, "%d\n", (data->config1 & CFG1_THERM_HOT) >> 4);
959 }
960 static ssize_t set_temp_crit_enable(struct device *dev,
961 struct device_attribute *attr, const char *buf, size_t count)
962 {
963 struct adm1026_data *data = dev_get_drvdata(dev);
964 struct i2c_client *client = data->client;
965 unsigned long val;
966 int err;
967
968 err = kstrtoul(buf, 10, &val);
969 if (err)
970 return err;
971
972 if (val > 1)
973 return -EINVAL;
974
975 mutex_lock(&data->update_lock);
976 data->config1 = (data->config1 & ~CFG1_THERM_HOT) | (val << 4);
977 adm1026_write_value(client, ADM1026_REG_CONFIG1, data->config1);
978 mutex_unlock(&data->update_lock);
979
980 return count;
981 }
982
983 #define temp_crit_enable(offset) \
984 static DEVICE_ATTR(temp##offset##_crit_enable, S_IRUGO | S_IWUSR, \
985 show_temp_crit_enable, set_temp_crit_enable);
986
987 temp_crit_enable(1);
988 temp_crit_enable(2);
989 temp_crit_enable(3);
990
991 static ssize_t show_temp_crit(struct device *dev,
992 struct device_attribute *attr, char *buf)
993 {
994 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
995 int nr = sensor_attr->index;
996 struct adm1026_data *data = adm1026_update_device(dev);
997 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[nr]));
998 }
999 static ssize_t set_temp_crit(struct device *dev, struct device_attribute *attr,
1000 const char *buf, size_t count)
1001 {
1002 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1003 int nr = sensor_attr->index;
1004 struct adm1026_data *data = dev_get_drvdata(dev);
1005 struct i2c_client *client = data->client;
1006 long val;
1007 int err;
1008
1009 err = kstrtol(buf, 10, &val);
1010 if (err)
1011 return err;
1012
1013 mutex_lock(&data->update_lock);
1014 data->temp_crit[nr] = TEMP_TO_REG(val);
1015 adm1026_write_value(client, ADM1026_REG_TEMP_THERM[nr],
1016 data->temp_crit[nr]);
1017 mutex_unlock(&data->update_lock);
1018 return count;
1019 }
1020
1021 #define temp_crit_reg(offset) \
1022 static SENSOR_DEVICE_ATTR(temp##offset##_crit, S_IRUGO | S_IWUSR, \
1023 show_temp_crit, set_temp_crit, offset - 1);
1024
1025 temp_crit_reg(1);
1026 temp_crit_reg(2);
1027 temp_crit_reg(3);
1028
1029 static ssize_t show_analog_out_reg(struct device *dev,
1030 struct device_attribute *attr, char *buf)
1031 {
1032 struct adm1026_data *data = adm1026_update_device(dev);
1033 return sprintf(buf, "%d\n", DAC_FROM_REG(data->analog_out));
1034 }
1035 static ssize_t set_analog_out_reg(struct device *dev,
1036 struct device_attribute *attr,
1037 const char *buf, size_t count)
1038 {
1039 struct adm1026_data *data = dev_get_drvdata(dev);
1040 struct i2c_client *client = data->client;
1041 long val;
1042 int err;
1043
1044 err = kstrtol(buf, 10, &val);
1045 if (err)
1046 return err;
1047
1048 mutex_lock(&data->update_lock);
1049 data->analog_out = DAC_TO_REG(val);
1050 adm1026_write_value(client, ADM1026_REG_DAC, data->analog_out);
1051 mutex_unlock(&data->update_lock);
1052 return count;
1053 }
1054
1055 static DEVICE_ATTR(analog_out, S_IRUGO | S_IWUSR, show_analog_out_reg,
1056 set_analog_out_reg);
1057
1058 static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr,
1059 char *buf)
1060 {
1061 struct adm1026_data *data = adm1026_update_device(dev);
1062 int vid = (data->gpio >> 11) & 0x1f;
1063
1064 dev_dbg(dev, "Setting VID from GPIO11-15.\n");
1065 return sprintf(buf, "%d\n", vid_from_reg(vid, data->vrm));
1066 }
1067
1068 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
1069
1070 static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr,
1071 char *buf)
1072 {
1073 struct adm1026_data *data = dev_get_drvdata(dev);
1074 return sprintf(buf, "%d\n", data->vrm);
1075 }
1076
1077 static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr,
1078 const char *buf, size_t count)
1079 {
1080 struct adm1026_data *data = dev_get_drvdata(dev);
1081 unsigned long val;
1082 int err;
1083
1084 err = kstrtoul(buf, 10, &val);
1085 if (err)
1086 return err;
1087
1088 if (val > 255)
1089 return -EINVAL;
1090
1091 data->vrm = val;
1092 return count;
1093 }
1094
1095 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
1096
1097 static ssize_t show_alarms_reg(struct device *dev,
1098 struct device_attribute *attr, char *buf)
1099 {
1100 struct adm1026_data *data = adm1026_update_device(dev);
1101 return sprintf(buf, "%ld\n", data->alarms);
1102 }
1103
1104 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
1105
1106 static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
1107 char *buf)
1108 {
1109 struct adm1026_data *data = adm1026_update_device(dev);
1110 int bitnr = to_sensor_dev_attr(attr)->index;
1111 return sprintf(buf, "%ld\n", (data->alarms >> bitnr) & 1);
1112 }
1113
1114 static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 0);
1115 static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 1);
1116 static SENSOR_DEVICE_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, 1);
1117 static SENSOR_DEVICE_ATTR(in11_alarm, S_IRUGO, show_alarm, NULL, 2);
1118 static SENSOR_DEVICE_ATTR(in12_alarm, S_IRUGO, show_alarm, NULL, 3);
1119 static SENSOR_DEVICE_ATTR(in13_alarm, S_IRUGO, show_alarm, NULL, 4);
1120 static SENSOR_DEVICE_ATTR(in14_alarm, S_IRUGO, show_alarm, NULL, 5);
1121 static SENSOR_DEVICE_ATTR(in15_alarm, S_IRUGO, show_alarm, NULL, 6);
1122 static SENSOR_DEVICE_ATTR(in16_alarm, S_IRUGO, show_alarm, NULL, 7);
1123 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 8);
1124 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 9);
1125 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 10);
1126 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 11);
1127 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 12);
1128 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 13);
1129 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 14);
1130 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 15);
1131 static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 16);
1132 static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 17);
1133 static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 18);
1134 static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 19);
1135 static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 20);
1136 static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 21);
1137 static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL, 22);
1138 static SENSOR_DEVICE_ATTR(fan8_alarm, S_IRUGO, show_alarm, NULL, 23);
1139 static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 24);
1140 static SENSOR_DEVICE_ATTR(in10_alarm, S_IRUGO, show_alarm, NULL, 25);
1141 static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 26);
1142
1143 static ssize_t show_alarm_mask(struct device *dev,
1144 struct device_attribute *attr, char *buf)
1145 {
1146 struct adm1026_data *data = adm1026_update_device(dev);
1147 return sprintf(buf, "%ld\n", data->alarm_mask);
1148 }
1149 static ssize_t set_alarm_mask(struct device *dev, struct device_attribute *attr,
1150 const char *buf, size_t count)
1151 {
1152 struct adm1026_data *data = dev_get_drvdata(dev);
1153 struct i2c_client *client = data->client;
1154 unsigned long mask;
1155 long val;
1156 int err;
1157
1158 err = kstrtol(buf, 10, &val);
1159 if (err)
1160 return err;
1161
1162 mutex_lock(&data->update_lock);
1163 data->alarm_mask = val & 0x7fffffff;
1164 mask = data->alarm_mask
1165 | (data->gpio_mask & 0x10000 ? 0x80000000 : 0);
1166 adm1026_write_value(client, ADM1026_REG_MASK1,
1167 mask & 0xff);
1168 mask >>= 8;
1169 adm1026_write_value(client, ADM1026_REG_MASK2,
1170 mask & 0xff);
1171 mask >>= 8;
1172 adm1026_write_value(client, ADM1026_REG_MASK3,
1173 mask & 0xff);
1174 mask >>= 8;
1175 adm1026_write_value(client, ADM1026_REG_MASK4,
1176 mask & 0xff);
1177 mutex_unlock(&data->update_lock);
1178 return count;
1179 }
1180
1181 static DEVICE_ATTR(alarm_mask, S_IRUGO | S_IWUSR, show_alarm_mask,
1182 set_alarm_mask);
1183
1184
1185 static ssize_t show_gpio(struct device *dev, struct device_attribute *attr,
1186 char *buf)
1187 {
1188 struct adm1026_data *data = adm1026_update_device(dev);
1189 return sprintf(buf, "%ld\n", data->gpio);
1190 }
1191 static ssize_t set_gpio(struct device *dev, struct device_attribute *attr,
1192 const char *buf, size_t count)
1193 {
1194 struct adm1026_data *data = dev_get_drvdata(dev);
1195 struct i2c_client *client = data->client;
1196 long gpio;
1197 long val;
1198 int err;
1199
1200 err = kstrtol(buf, 10, &val);
1201 if (err)
1202 return err;
1203
1204 mutex_lock(&data->update_lock);
1205 data->gpio = val & 0x1ffff;
1206 gpio = data->gpio;
1207 adm1026_write_value(client, ADM1026_REG_GPIO_STATUS_0_7, gpio & 0xff);
1208 gpio >>= 8;
1209 adm1026_write_value(client, ADM1026_REG_GPIO_STATUS_8_15, gpio & 0xff);
1210 gpio = ((gpio >> 1) & 0x80) | (data->alarms >> 24 & 0x7f);
1211 adm1026_write_value(client, ADM1026_REG_STATUS4, gpio & 0xff);
1212 mutex_unlock(&data->update_lock);
1213 return count;
1214 }
1215
1216 static DEVICE_ATTR(gpio, S_IRUGO | S_IWUSR, show_gpio, set_gpio);
1217
1218 static ssize_t show_gpio_mask(struct device *dev, struct device_attribute *attr,
1219 char *buf)
1220 {
1221 struct adm1026_data *data = adm1026_update_device(dev);
1222 return sprintf(buf, "%ld\n", data->gpio_mask);
1223 }
1224 static ssize_t set_gpio_mask(struct device *dev, struct device_attribute *attr,
1225 const char *buf, size_t count)
1226 {
1227 struct adm1026_data *data = dev_get_drvdata(dev);
1228 struct i2c_client *client = data->client;
1229 long mask;
1230 long val;
1231 int err;
1232
1233 err = kstrtol(buf, 10, &val);
1234 if (err)
1235 return err;
1236
1237 mutex_lock(&data->update_lock);
1238 data->gpio_mask = val & 0x1ffff;
1239 mask = data->gpio_mask;
1240 adm1026_write_value(client, ADM1026_REG_GPIO_MASK_0_7, mask & 0xff);
1241 mask >>= 8;
1242 adm1026_write_value(client, ADM1026_REG_GPIO_MASK_8_15, mask & 0xff);
1243 mask = ((mask >> 1) & 0x80) | (data->alarm_mask >> 24 & 0x7f);
1244 adm1026_write_value(client, ADM1026_REG_MASK1, mask & 0xff);
1245 mutex_unlock(&data->update_lock);
1246 return count;
1247 }
1248
1249 static DEVICE_ATTR(gpio_mask, S_IRUGO | S_IWUSR, show_gpio_mask, set_gpio_mask);
1250
1251 static ssize_t show_pwm_reg(struct device *dev, struct device_attribute *attr,
1252 char *buf)
1253 {
1254 struct adm1026_data *data = adm1026_update_device(dev);
1255 return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm1.pwm));
1256 }
1257
1258 static ssize_t set_pwm_reg(struct device *dev, struct device_attribute *attr,
1259 const char *buf, size_t count)
1260 {
1261 struct adm1026_data *data = dev_get_drvdata(dev);
1262 struct i2c_client *client = data->client;
1263
1264 if (data->pwm1.enable == 1) {
1265 long val;
1266 int err;
1267
1268 err = kstrtol(buf, 10, &val);
1269 if (err)
1270 return err;
1271
1272 mutex_lock(&data->update_lock);
1273 data->pwm1.pwm = PWM_TO_REG(val);
1274 adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm);
1275 mutex_unlock(&data->update_lock);
1276 }
1277 return count;
1278 }
1279
1280 static ssize_t show_auto_pwm_min(struct device *dev,
1281 struct device_attribute *attr, char *buf)
1282 {
1283 struct adm1026_data *data = adm1026_update_device(dev);
1284 return sprintf(buf, "%d\n", data->pwm1.auto_pwm_min);
1285 }
1286
1287 static ssize_t set_auto_pwm_min(struct device *dev,
1288 struct device_attribute *attr, const char *buf,
1289 size_t count)
1290 {
1291 struct adm1026_data *data = dev_get_drvdata(dev);
1292 struct i2c_client *client = data->client;
1293 unsigned long val;
1294 int err;
1295
1296 err = kstrtoul(buf, 10, &val);
1297 if (err)
1298 return err;
1299
1300 mutex_lock(&data->update_lock);
1301 data->pwm1.auto_pwm_min = clamp_val(val, 0, 255);
1302 if (data->pwm1.enable == 2) { /* apply immediately */
1303 data->pwm1.pwm = PWM_TO_REG((data->pwm1.pwm & 0x0f) |
1304 PWM_MIN_TO_REG(data->pwm1.auto_pwm_min));
1305 adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm);
1306 }
1307 mutex_unlock(&data->update_lock);
1308 return count;
1309 }
1310
1311 static ssize_t show_auto_pwm_max(struct device *dev,
1312 struct device_attribute *attr, char *buf)
1313 {
1314 return sprintf(buf, "%d\n", ADM1026_PWM_MAX);
1315 }
1316
1317 static ssize_t show_pwm_enable(struct device *dev,
1318 struct device_attribute *attr, char *buf)
1319 {
1320 struct adm1026_data *data = adm1026_update_device(dev);
1321 return sprintf(buf, "%d\n", data->pwm1.enable);
1322 }
1323
1324 static ssize_t set_pwm_enable(struct device *dev, struct device_attribute *attr,
1325 const char *buf, size_t count)
1326 {
1327 struct adm1026_data *data = dev_get_drvdata(dev);
1328 struct i2c_client *client = data->client;
1329 int old_enable;
1330 unsigned long val;
1331 int err;
1332
1333 err = kstrtoul(buf, 10, &val);
1334 if (err)
1335 return err;
1336
1337 if (val >= 3)
1338 return -EINVAL;
1339
1340 mutex_lock(&data->update_lock);
1341 old_enable = data->pwm1.enable;
1342 data->pwm1.enable = val;
1343 data->config1 = (data->config1 & ~CFG1_PWM_AFC)
1344 | ((val == 2) ? CFG1_PWM_AFC : 0);
1345 adm1026_write_value(client, ADM1026_REG_CONFIG1, data->config1);
1346 if (val == 2) { /* apply pwm1_auto_pwm_min to pwm1 */
1347 data->pwm1.pwm = PWM_TO_REG((data->pwm1.pwm & 0x0f) |
1348 PWM_MIN_TO_REG(data->pwm1.auto_pwm_min));
1349 adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm);
1350 } else if (!((old_enable == 1) && (val == 1))) {
1351 /* set pwm to safe value */
1352 data->pwm1.pwm = 255;
1353 adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm);
1354 }
1355 mutex_unlock(&data->update_lock);
1356
1357 return count;
1358 }
1359
1360 /* enable PWM fan control */
1361 static DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm_reg, set_pwm_reg);
1362 static DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, show_pwm_reg, set_pwm_reg);
1363 static DEVICE_ATTR(pwm3, S_IRUGO | S_IWUSR, show_pwm_reg, set_pwm_reg);
1364 static DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, show_pwm_enable,
1365 set_pwm_enable);
1366 static DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR, show_pwm_enable,
1367 set_pwm_enable);
1368 static DEVICE_ATTR(pwm3_enable, S_IRUGO | S_IWUSR, show_pwm_enable,
1369 set_pwm_enable);
1370 static DEVICE_ATTR(temp1_auto_point1_pwm, S_IRUGO | S_IWUSR,
1371 show_auto_pwm_min, set_auto_pwm_min);
1372 static DEVICE_ATTR(temp2_auto_point1_pwm, S_IRUGO | S_IWUSR,
1373 show_auto_pwm_min, set_auto_pwm_min);
1374 static DEVICE_ATTR(temp3_auto_point1_pwm, S_IRUGO | S_IWUSR,
1375 show_auto_pwm_min, set_auto_pwm_min);
1376
1377 static DEVICE_ATTR(temp1_auto_point2_pwm, S_IRUGO, show_auto_pwm_max, NULL);
1378 static DEVICE_ATTR(temp2_auto_point2_pwm, S_IRUGO, show_auto_pwm_max, NULL);
1379 static DEVICE_ATTR(temp3_auto_point2_pwm, S_IRUGO, show_auto_pwm_max, NULL);
1380
1381 static struct attribute *adm1026_attributes[] = {
1382 &sensor_dev_attr_in0_input.dev_attr.attr,
1383 &sensor_dev_attr_in0_max.dev_attr.attr,
1384 &sensor_dev_attr_in0_min.dev_attr.attr,
1385 &sensor_dev_attr_in0_alarm.dev_attr.attr,
1386 &sensor_dev_attr_in1_input.dev_attr.attr,
1387 &sensor_dev_attr_in1_max.dev_attr.attr,
1388 &sensor_dev_attr_in1_min.dev_attr.attr,
1389 &sensor_dev_attr_in1_alarm.dev_attr.attr,
1390 &sensor_dev_attr_in2_input.dev_attr.attr,
1391 &sensor_dev_attr_in2_max.dev_attr.attr,
1392 &sensor_dev_attr_in2_min.dev_attr.attr,
1393 &sensor_dev_attr_in2_alarm.dev_attr.attr,
1394 &sensor_dev_attr_in3_input.dev_attr.attr,
1395 &sensor_dev_attr_in3_max.dev_attr.attr,
1396 &sensor_dev_attr_in3_min.dev_attr.attr,
1397 &sensor_dev_attr_in3_alarm.dev_attr.attr,
1398 &sensor_dev_attr_in4_input.dev_attr.attr,
1399 &sensor_dev_attr_in4_max.dev_attr.attr,
1400 &sensor_dev_attr_in4_min.dev_attr.attr,
1401 &sensor_dev_attr_in4_alarm.dev_attr.attr,
1402 &sensor_dev_attr_in5_input.dev_attr.attr,
1403 &sensor_dev_attr_in5_max.dev_attr.attr,
1404 &sensor_dev_attr_in5_min.dev_attr.attr,
1405 &sensor_dev_attr_in5_alarm.dev_attr.attr,
1406 &sensor_dev_attr_in6_input.dev_attr.attr,
1407 &sensor_dev_attr_in6_max.dev_attr.attr,
1408 &sensor_dev_attr_in6_min.dev_attr.attr,
1409 &sensor_dev_attr_in6_alarm.dev_attr.attr,
1410 &sensor_dev_attr_in7_input.dev_attr.attr,
1411 &sensor_dev_attr_in7_max.dev_attr.attr,
1412 &sensor_dev_attr_in7_min.dev_attr.attr,
1413 &sensor_dev_attr_in7_alarm.dev_attr.attr,
1414 &sensor_dev_attr_in10_input.dev_attr.attr,
1415 &sensor_dev_attr_in10_max.dev_attr.attr,
1416 &sensor_dev_attr_in10_min.dev_attr.attr,
1417 &sensor_dev_attr_in10_alarm.dev_attr.attr,
1418 &sensor_dev_attr_in11_input.dev_attr.attr,
1419 &sensor_dev_attr_in11_max.dev_attr.attr,
1420 &sensor_dev_attr_in11_min.dev_attr.attr,
1421 &sensor_dev_attr_in11_alarm.dev_attr.attr,
1422 &sensor_dev_attr_in12_input.dev_attr.attr,
1423 &sensor_dev_attr_in12_max.dev_attr.attr,
1424 &sensor_dev_attr_in12_min.dev_attr.attr,
1425 &sensor_dev_attr_in12_alarm.dev_attr.attr,
1426 &sensor_dev_attr_in13_input.dev_attr.attr,
1427 &sensor_dev_attr_in13_max.dev_attr.attr,
1428 &sensor_dev_attr_in13_min.dev_attr.attr,
1429 &sensor_dev_attr_in13_alarm.dev_attr.attr,
1430 &sensor_dev_attr_in14_input.dev_attr.attr,
1431 &sensor_dev_attr_in14_max.dev_attr.attr,
1432 &sensor_dev_attr_in14_min.dev_attr.attr,
1433 &sensor_dev_attr_in14_alarm.dev_attr.attr,
1434 &sensor_dev_attr_in15_input.dev_attr.attr,
1435 &sensor_dev_attr_in15_max.dev_attr.attr,
1436 &sensor_dev_attr_in15_min.dev_attr.attr,
1437 &sensor_dev_attr_in15_alarm.dev_attr.attr,
1438 &sensor_dev_attr_in16_input.dev_attr.attr,
1439 &sensor_dev_attr_in16_max.dev_attr.attr,
1440 &sensor_dev_attr_in16_min.dev_attr.attr,
1441 &sensor_dev_attr_in16_alarm.dev_attr.attr,
1442 &sensor_dev_attr_fan1_input.dev_attr.attr,
1443 &sensor_dev_attr_fan1_div.dev_attr.attr,
1444 &sensor_dev_attr_fan1_min.dev_attr.attr,
1445 &sensor_dev_attr_fan1_alarm.dev_attr.attr,
1446 &sensor_dev_attr_fan2_input.dev_attr.attr,
1447 &sensor_dev_attr_fan2_div.dev_attr.attr,
1448 &sensor_dev_attr_fan2_min.dev_attr.attr,
1449 &sensor_dev_attr_fan2_alarm.dev_attr.attr,
1450 &sensor_dev_attr_fan3_input.dev_attr.attr,
1451 &sensor_dev_attr_fan3_div.dev_attr.attr,
1452 &sensor_dev_attr_fan3_min.dev_attr.attr,
1453 &sensor_dev_attr_fan3_alarm.dev_attr.attr,
1454 &sensor_dev_attr_fan4_input.dev_attr.attr,
1455 &sensor_dev_attr_fan4_div.dev_attr.attr,
1456 &sensor_dev_attr_fan4_min.dev_attr.attr,
1457 &sensor_dev_attr_fan4_alarm.dev_attr.attr,
1458 &sensor_dev_attr_fan5_input.dev_attr.attr,
1459 &sensor_dev_attr_fan5_div.dev_attr.attr,
1460 &sensor_dev_attr_fan5_min.dev_attr.attr,
1461 &sensor_dev_attr_fan5_alarm.dev_attr.attr,
1462 &sensor_dev_attr_fan6_input.dev_attr.attr,
1463 &sensor_dev_attr_fan6_div.dev_attr.attr,
1464 &sensor_dev_attr_fan6_min.dev_attr.attr,
1465 &sensor_dev_attr_fan6_alarm.dev_attr.attr,
1466 &sensor_dev_attr_fan7_input.dev_attr.attr,
1467 &sensor_dev_attr_fan7_div.dev_attr.attr,
1468 &sensor_dev_attr_fan7_min.dev_attr.attr,
1469 &sensor_dev_attr_fan7_alarm.dev_attr.attr,
1470 &sensor_dev_attr_fan8_input.dev_attr.attr,
1471 &sensor_dev_attr_fan8_div.dev_attr.attr,
1472 &sensor_dev_attr_fan8_min.dev_attr.attr,
1473 &sensor_dev_attr_fan8_alarm.dev_attr.attr,
1474 &sensor_dev_attr_temp1_input.dev_attr.attr,
1475 &sensor_dev_attr_temp1_max.dev_attr.attr,
1476 &sensor_dev_attr_temp1_min.dev_attr.attr,
1477 &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1478 &sensor_dev_attr_temp2_input.dev_attr.attr,
1479 &sensor_dev_attr_temp2_max.dev_attr.attr,
1480 &sensor_dev_attr_temp2_min.dev_attr.attr,
1481 &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1482 &sensor_dev_attr_temp1_offset.dev_attr.attr,
1483 &sensor_dev_attr_temp2_offset.dev_attr.attr,
1484 &sensor_dev_attr_temp1_auto_point1_temp.dev_attr.attr,
1485 &sensor_dev_attr_temp2_auto_point1_temp.dev_attr.attr,
1486 &sensor_dev_attr_temp1_auto_point1_temp_hyst.dev_attr.attr,
1487 &sensor_dev_attr_temp2_auto_point1_temp_hyst.dev_attr.attr,
1488 &sensor_dev_attr_temp1_auto_point2_temp.dev_attr.attr,
1489 &sensor_dev_attr_temp2_auto_point2_temp.dev_attr.attr,
1490 &sensor_dev_attr_temp1_crit.dev_attr.attr,
1491 &sensor_dev_attr_temp2_crit.dev_attr.attr,
1492 &dev_attr_temp1_crit_enable.attr,
1493 &dev_attr_temp2_crit_enable.attr,
1494 &dev_attr_cpu0_vid.attr,
1495 &dev_attr_vrm.attr,
1496 &dev_attr_alarms.attr,
1497 &dev_attr_alarm_mask.attr,
1498 &dev_attr_gpio.attr,
1499 &dev_attr_gpio_mask.attr,
1500 &dev_attr_pwm1.attr,
1501 &dev_attr_pwm2.attr,
1502 &dev_attr_pwm3.attr,
1503 &dev_attr_pwm1_enable.attr,
1504 &dev_attr_pwm2_enable.attr,
1505 &dev_attr_pwm3_enable.attr,
1506 &dev_attr_temp1_auto_point1_pwm.attr,
1507 &dev_attr_temp2_auto_point1_pwm.attr,
1508 &dev_attr_temp1_auto_point2_pwm.attr,
1509 &dev_attr_temp2_auto_point2_pwm.attr,
1510 &dev_attr_analog_out.attr,
1511 NULL
1512 };
1513
1514 static const struct attribute_group adm1026_group = {
1515 .attrs = adm1026_attributes,
1516 };
1517
1518 static struct attribute *adm1026_attributes_temp3[] = {
1519 &sensor_dev_attr_temp3_input.dev_attr.attr,
1520 &sensor_dev_attr_temp3_max.dev_attr.attr,
1521 &sensor_dev_attr_temp3_min.dev_attr.attr,
1522 &sensor_dev_attr_temp3_alarm.dev_attr.attr,
1523 &sensor_dev_attr_temp3_offset.dev_attr.attr,
1524 &sensor_dev_attr_temp3_auto_point1_temp.dev_attr.attr,
1525 &sensor_dev_attr_temp3_auto_point1_temp_hyst.dev_attr.attr,
1526 &sensor_dev_attr_temp3_auto_point2_temp.dev_attr.attr,
1527 &sensor_dev_attr_temp3_crit.dev_attr.attr,
1528 &dev_attr_temp3_crit_enable.attr,
1529 &dev_attr_temp3_auto_point1_pwm.attr,
1530 &dev_attr_temp3_auto_point2_pwm.attr,
1531 NULL
1532 };
1533
1534 static const struct attribute_group adm1026_group_temp3 = {
1535 .attrs = adm1026_attributes_temp3,
1536 };
1537
1538 static struct attribute *adm1026_attributes_in8_9[] = {
1539 &sensor_dev_attr_in8_input.dev_attr.attr,
1540 &sensor_dev_attr_in8_max.dev_attr.attr,
1541 &sensor_dev_attr_in8_min.dev_attr.attr,
1542 &sensor_dev_attr_in8_alarm.dev_attr.attr,
1543 &sensor_dev_attr_in9_input.dev_attr.attr,
1544 &sensor_dev_attr_in9_max.dev_attr.attr,
1545 &sensor_dev_attr_in9_min.dev_attr.attr,
1546 &sensor_dev_attr_in9_alarm.dev_attr.attr,
1547 NULL
1548 };
1549
1550 static const struct attribute_group adm1026_group_in8_9 = {
1551 .attrs = adm1026_attributes_in8_9,
1552 };
1553
1554 /* Return 0 if detection is successful, -ENODEV otherwise */
1555 static int adm1026_detect(struct i2c_client *client,
1556 struct i2c_board_info *info)
1557 {
1558 struct i2c_adapter *adapter = client->adapter;
1559 int address = client->addr;
1560 int company, verstep;
1561
1562 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
1563 /* We need to be able to do byte I/O */
1564 return -ENODEV;
1565 }
1566
1567 /* Now, we do the remaining detection. */
1568
1569 company = adm1026_read_value(client, ADM1026_REG_COMPANY);
1570 verstep = adm1026_read_value(client, ADM1026_REG_VERSTEP);
1571
1572 dev_dbg(&adapter->dev,
1573 "Detecting device at %d,0x%02x with COMPANY: 0x%02x and VERSTEP: 0x%02x\n",
1574 i2c_adapter_id(client->adapter), client->addr,
1575 company, verstep);
1576
1577 /* Determine the chip type. */
1578 dev_dbg(&adapter->dev, "Autodetecting device at %d,0x%02x...\n",
1579 i2c_adapter_id(adapter), address);
1580 if (company == ADM1026_COMPANY_ANALOG_DEV
1581 && verstep == ADM1026_VERSTEP_ADM1026) {
1582 /* Analog Devices ADM1026 */
1583 } else if (company == ADM1026_COMPANY_ANALOG_DEV
1584 && (verstep & 0xf0) == ADM1026_VERSTEP_GENERIC) {
1585 dev_err(&adapter->dev,
1586 "Unrecognized stepping 0x%02x. Defaulting to ADM1026.\n",
1587 verstep);
1588 } else if ((verstep & 0xf0) == ADM1026_VERSTEP_GENERIC) {
1589 dev_err(&adapter->dev,
1590 "Found version/stepping 0x%02x. Assuming generic ADM1026.\n",
1591 verstep);
1592 } else {
1593 dev_dbg(&adapter->dev, "Autodetection failed\n");
1594 /* Not an ADM1026... */
1595 return -ENODEV;
1596 }
1597
1598 strlcpy(info->type, "adm1026", I2C_NAME_SIZE);
1599
1600 return 0;
1601 }
1602
1603 static void adm1026_print_gpio(struct i2c_client *client)
1604 {
1605 struct adm1026_data *data = i2c_get_clientdata(client);
1606 int i;
1607
1608 dev_dbg(&client->dev, "GPIO config is:\n");
1609 for (i = 0; i <= 7; ++i) {
1610 if (data->config2 & (1 << i)) {
1611 dev_dbg(&client->dev, "\t%sGP%s%d\n",
1612 data->gpio_config[i] & 0x02 ? "" : "!",
1613 data->gpio_config[i] & 0x01 ? "OUT" : "IN",
1614 i);
1615 } else {
1616 dev_dbg(&client->dev, "\tFAN%d\n", i);
1617 }
1618 }
1619 for (i = 8; i <= 15; ++i) {
1620 dev_dbg(&client->dev, "\t%sGP%s%d\n",
1621 data->gpio_config[i] & 0x02 ? "" : "!",
1622 data->gpio_config[i] & 0x01 ? "OUT" : "IN",
1623 i);
1624 }
1625 if (data->config3 & CFG3_GPIO16_ENABLE) {
1626 dev_dbg(&client->dev, "\t%sGP%s16\n",
1627 data->gpio_config[16] & 0x02 ? "" : "!",
1628 data->gpio_config[16] & 0x01 ? "OUT" : "IN");
1629 } else {
1630 /* GPIO16 is THERM */
1631 dev_dbg(&client->dev, "\tTHERM\n");
1632 }
1633 }
1634
1635 static void adm1026_fixup_gpio(struct i2c_client *client)
1636 {
1637 struct adm1026_data *data = i2c_get_clientdata(client);
1638 int i;
1639 int value;
1640
1641 /* Make the changes requested. */
1642 /*
1643 * We may need to unlock/stop monitoring or soft-reset the
1644 * chip before we can make changes. This hasn't been
1645 * tested much. FIXME
1646 */
1647
1648 /* Make outputs */
1649 for (i = 0; i <= 16; ++i) {
1650 if (gpio_output[i] >= 0 && gpio_output[i] <= 16)
1651 data->gpio_config[gpio_output[i]] |= 0x01;
1652 /* if GPIO0-7 is output, it isn't a FAN tach */
1653 if (gpio_output[i] >= 0 && gpio_output[i] <= 7)
1654 data->config2 |= 1 << gpio_output[i];
1655 }
1656
1657 /* Input overrides output */
1658 for (i = 0; i <= 16; ++i) {
1659 if (gpio_input[i] >= 0 && gpio_input[i] <= 16)
1660 data->gpio_config[gpio_input[i]] &= ~0x01;
1661 /* if GPIO0-7 is input, it isn't a FAN tach */
1662 if (gpio_input[i] >= 0 && gpio_input[i] <= 7)
1663 data->config2 |= 1 << gpio_input[i];
1664 }
1665
1666 /* Inverted */
1667 for (i = 0; i <= 16; ++i) {
1668 if (gpio_inverted[i] >= 0 && gpio_inverted[i] <= 16)
1669 data->gpio_config[gpio_inverted[i]] &= ~0x02;
1670 }
1671
1672 /* Normal overrides inverted */
1673 for (i = 0; i <= 16; ++i) {
1674 if (gpio_normal[i] >= 0 && gpio_normal[i] <= 16)
1675 data->gpio_config[gpio_normal[i]] |= 0x02;
1676 }
1677
1678 /* Fan overrides input and output */
1679 for (i = 0; i <= 7; ++i) {
1680 if (gpio_fan[i] >= 0 && gpio_fan[i] <= 7)
1681 data->config2 &= ~(1 << gpio_fan[i]);
1682 }
1683
1684 /* Write new configs to registers */
1685 adm1026_write_value(client, ADM1026_REG_CONFIG2, data->config2);
1686 data->config3 = (data->config3 & 0x3f)
1687 | ((data->gpio_config[16] & 0x03) << 6);
1688 adm1026_write_value(client, ADM1026_REG_CONFIG3, data->config3);
1689 for (i = 15, value = 0; i >= 0; --i) {
1690 value <<= 2;
1691 value |= data->gpio_config[i] & 0x03;
1692 if ((i & 0x03) == 0) {
1693 adm1026_write_value(client,
1694 ADM1026_REG_GPIO_CFG_0_3 + i/4,
1695 value);
1696 value = 0;
1697 }
1698 }
1699
1700 /* Print the new config */
1701 adm1026_print_gpio(client);
1702 }
1703
1704 static void adm1026_init_client(struct i2c_client *client)
1705 {
1706 int value, i;
1707 struct adm1026_data *data = i2c_get_clientdata(client);
1708
1709 dev_dbg(&client->dev, "Initializing device\n");
1710 /* Read chip config */
1711 data->config1 = adm1026_read_value(client, ADM1026_REG_CONFIG1);
1712 data->config2 = adm1026_read_value(client, ADM1026_REG_CONFIG2);
1713 data->config3 = adm1026_read_value(client, ADM1026_REG_CONFIG3);
1714
1715 /* Inform user of chip config */
1716 dev_dbg(&client->dev, "ADM1026_REG_CONFIG1 is: 0x%02x\n",
1717 data->config1);
1718 if ((data->config1 & CFG1_MONITOR) == 0) {
1719 dev_dbg(&client->dev,
1720 "Monitoring not currently enabled.\n");
1721 }
1722 if (data->config1 & CFG1_INT_ENABLE) {
1723 dev_dbg(&client->dev,
1724 "SMBALERT interrupts are enabled.\n");
1725 }
1726 if (data->config1 & CFG1_AIN8_9) {
1727 dev_dbg(&client->dev,
1728 "in8 and in9 enabled. temp3 disabled.\n");
1729 } else {
1730 dev_dbg(&client->dev,
1731 "temp3 enabled. in8 and in9 disabled.\n");
1732 }
1733 if (data->config1 & CFG1_THERM_HOT) {
1734 dev_dbg(&client->dev,
1735 "Automatic THERM, PWM, and temp limits enabled.\n");
1736 }
1737
1738 if (data->config3 & CFG3_GPIO16_ENABLE) {
1739 dev_dbg(&client->dev,
1740 "GPIO16 enabled. THERM pin disabled.\n");
1741 } else {
1742 dev_dbg(&client->dev,
1743 "THERM pin enabled. GPIO16 disabled.\n");
1744 }
1745 if (data->config3 & CFG3_VREF_250)
1746 dev_dbg(&client->dev, "Vref is 2.50 Volts.\n");
1747 else
1748 dev_dbg(&client->dev, "Vref is 1.82 Volts.\n");
1749 /* Read and pick apart the existing GPIO configuration */
1750 value = 0;
1751 for (i = 0; i <= 15; ++i) {
1752 if ((i & 0x03) == 0) {
1753 value = adm1026_read_value(client,
1754 ADM1026_REG_GPIO_CFG_0_3 + i / 4);
1755 }
1756 data->gpio_config[i] = value & 0x03;
1757 value >>= 2;
1758 }
1759 data->gpio_config[16] = (data->config3 >> 6) & 0x03;
1760
1761 /* ... and then print it */
1762 adm1026_print_gpio(client);
1763
1764 /*
1765 * If the user asks us to reprogram the GPIO config, then
1766 * do it now.
1767 */
1768 if (gpio_input[0] != -1 || gpio_output[0] != -1
1769 || gpio_inverted[0] != -1 || gpio_normal[0] != -1
1770 || gpio_fan[0] != -1) {
1771 adm1026_fixup_gpio(client);
1772 }
1773
1774 /*
1775 * WE INTENTIONALLY make no changes to the limits,
1776 * offsets, pwms, fans and zones. If they were
1777 * configured, we don't want to mess with them.
1778 * If they weren't, the default is 100% PWM, no
1779 * control and will suffice until 'sensors -s'
1780 * can be run by the user. We DO set the default
1781 * value for pwm1.auto_pwm_min to its maximum
1782 * so that enabling automatic pwm fan control
1783 * without first setting a value for pwm1.auto_pwm_min
1784 * will not result in potentially dangerous fan speed decrease.
1785 */
1786 data->pwm1.auto_pwm_min = 255;
1787 /* Start monitoring */
1788 value = adm1026_read_value(client, ADM1026_REG_CONFIG1);
1789 /* Set MONITOR, clear interrupt acknowledge and s/w reset */
1790 value = (value | CFG1_MONITOR) & (~CFG1_INT_CLEAR & ~CFG1_RESET);
1791 dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value);
1792 data->config1 = value;
1793 adm1026_write_value(client, ADM1026_REG_CONFIG1, value);
1794
1795 /* initialize fan_div[] to hardware defaults */
1796 value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3) |
1797 (adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7) << 8);
1798 for (i = 0; i <= 7; ++i) {
1799 data->fan_div[i] = DIV_FROM_REG(value & 0x03);
1800 value >>= 2;
1801 }
1802 }
1803
1804 static int adm1026_probe(struct i2c_client *client,
1805 const struct i2c_device_id *id)
1806 {
1807 struct device *dev = &client->dev;
1808 struct device *hwmon_dev;
1809 struct adm1026_data *data;
1810
1811 data = devm_kzalloc(dev, sizeof(struct adm1026_data), GFP_KERNEL);
1812 if (!data)
1813 return -ENOMEM;
1814
1815 i2c_set_clientdata(client, data);
1816 data->client = client;
1817 mutex_init(&data->update_lock);
1818
1819 /* Set the VRM version */
1820 data->vrm = vid_which_vrm();
1821
1822 /* Initialize the ADM1026 chip */
1823 adm1026_init_client(client);
1824
1825 /* sysfs hooks */
1826 data->groups[0] = &adm1026_group;
1827 if (data->config1 & CFG1_AIN8_9)
1828 data->groups[1] = &adm1026_group_in8_9;
1829 else
1830 data->groups[1] = &adm1026_group_temp3;
1831
1832 hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
1833 data, data->groups);
1834 return PTR_ERR_OR_ZERO(hwmon_dev);
1835 }
1836
1837 static const struct i2c_device_id adm1026_id[] = {
1838 { "adm1026", 0 },
1839 { }
1840 };
1841 MODULE_DEVICE_TABLE(i2c, adm1026_id);
1842
1843 static struct i2c_driver adm1026_driver = {
1844 .class = I2C_CLASS_HWMON,
1845 .driver = {
1846 .name = "adm1026",
1847 },
1848 .probe = adm1026_probe,
1849 .id_table = adm1026_id,
1850 .detect = adm1026_detect,
1851 .address_list = normal_i2c,
1852 };
1853
1854 module_i2c_driver(adm1026_driver);
1855
1856 MODULE_LICENSE("GPL");
1857 MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, "
1858 "Justin Thiessen <jthiessen@penguincomputing.com>");
1859 MODULE_DESCRIPTION("ADM1026 driver");
Linux with added FPC-III support