2 adm1026.c - Part of lm_sensors, Linux kernel modules for hardware
4 Copyright (C) 2002, 2003 Philip Pokorny <ppokorny@penguincomputing.com>
5 Copyright (C) 2004 Justin Thiessen <jthiessen@penguincomputing.com>
9 <http://www.analog.com/UploadedFiles/Data_Sheets/779263102ADM1026_a.pdf>
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.
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.
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.
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>
36 /* Addresses to scan */
37 static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
39 /* Insmod parameters */
40 I2C_CLIENT_INSMOD_1(adm1026);
42 static int gpio_input[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
43 -1, -1, -1, -1, -1, -1, -1, -1 };
44 static int gpio_output[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
45 -1, -1, -1, -1, -1, -1, -1, -1 };
46 static int gpio_inverted[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
47 -1, -1, -1, -1, -1, -1, -1, -1 };
48 static int gpio_normal[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
49 -1, -1, -1, -1, -1, -1, -1, -1 };
50 static int gpio_fan[8] = { -1, -1, -1, -1, -1, -1, -1, -1 };
51 module_param_array(gpio_input,int,NULL,0);
52 MODULE_PARM_DESC(gpio_input,"List of GPIO pins (0-16) to program as inputs");
53 module_param_array(gpio_output,int,NULL,0);
54 MODULE_PARM_DESC(gpio_output,"List of GPIO pins (0-16) to program as "
56 module_param_array(gpio_inverted,int,NULL,0);
57 MODULE_PARM_DESC(gpio_inverted,"List of GPIO pins (0-16) to program as "
59 module_param_array(gpio_normal,int,NULL,0);
60 MODULE_PARM_DESC(gpio_normal,"List of GPIO pins (0-16) to program as "
61 "normal/non-inverted");
62 module_param_array(gpio_fan,int,NULL,0);
63 MODULE_PARM_DESC(gpio_fan,"List of GPIO pins (0-7) to program as fan tachs");
65 /* Many ADM1026 constants specified below */
67 /* The ADM1026 registers */
68 #define ADM1026_REG_CONFIG1 0x00
69 #define CFG1_MONITOR 0x01
70 #define CFG1_INT_ENABLE 0x02
71 #define CFG1_INT_CLEAR 0x04
72 #define CFG1_AIN8_9 0x08
73 #define CFG1_THERM_HOT 0x10
74 #define CFG1_DAC_AFC 0x20
75 #define CFG1_PWM_AFC 0x40
76 #define CFG1_RESET 0x80
77 #define ADM1026_REG_CONFIG2 0x01
78 /* CONFIG2 controls FAN0/GPIO0 through FAN7/GPIO7 */
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 #define ADM1026_REG_E2CONFIG 0x13
86 #define E2CFG_READ 0x01
87 #define E2CFG_WRITE 0x02
88 #define E2CFG_ERASE 0x04
89 #define E2CFG_ROM 0x08
90 #define E2CFG_CLK_EXT 0x80
92 /* There are 10 general analog inputs and 7 dedicated inputs
99 * 14 = Vccp (CPU core voltage)
103 static u16 ADM1026_REG_IN[] = {
104 0x30, 0x31, 0x32, 0x33, 0x34, 0x35,
105 0x36, 0x37, 0x27, 0x29, 0x26, 0x2a,
106 0x2b, 0x2c, 0x2d, 0x2e, 0x2f
108 static u16 ADM1026_REG_IN_MIN[] = {
109 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d,
110 0x5e, 0x5f, 0x6d, 0x49, 0x6b, 0x4a,
111 0x4b, 0x4c, 0x4d, 0x4e, 0x4f
113 static u16 ADM1026_REG_IN_MAX[] = {
114 0x50, 0x51, 0x52, 0x53, 0x54, 0x55,
115 0x56, 0x57, 0x6c, 0x41, 0x6a, 0x42,
116 0x43, 0x44, 0x45, 0x46, 0x47
124 static u16 ADM1026_REG_TEMP[] = { 0x1f, 0x28, 0x29 };
125 static u16 ADM1026_REG_TEMP_MIN[] = { 0x69, 0x48, 0x49 };
126 static u16 ADM1026_REG_TEMP_MAX[] = { 0x68, 0x40, 0x41 };
127 static u16 ADM1026_REG_TEMP_TMIN[] = { 0x10, 0x11, 0x12 };
128 static u16 ADM1026_REG_TEMP_THERM[] = { 0x0d, 0x0e, 0x0f };
129 static u16 ADM1026_REG_TEMP_OFFSET[] = { 0x1e, 0x6e, 0x6f };
131 #define ADM1026_REG_FAN(nr) (0x38 + (nr))
132 #define ADM1026_REG_FAN_MIN(nr) (0x60 + (nr))
133 #define ADM1026_REG_FAN_DIV_0_3 0x02
134 #define ADM1026_REG_FAN_DIV_4_7 0x03
136 #define ADM1026_REG_DAC 0x04
137 #define ADM1026_REG_PWM 0x05
139 #define ADM1026_REG_GPIO_CFG_0_3 0x08
140 #define ADM1026_REG_GPIO_CFG_4_7 0x09
141 #define ADM1026_REG_GPIO_CFG_8_11 0x0a
142 #define ADM1026_REG_GPIO_CFG_12_15 0x0b
143 /* CFG_16 in REG_CFG3 */
144 #define ADM1026_REG_GPIO_STATUS_0_7 0x24
145 #define ADM1026_REG_GPIO_STATUS_8_15 0x25
146 /* STATUS_16 in REG_STATUS4 */
147 #define ADM1026_REG_GPIO_MASK_0_7 0x1c
148 #define ADM1026_REG_GPIO_MASK_8_15 0x1d
149 /* MASK_16 in REG_MASK4 */
151 #define ADM1026_REG_COMPANY 0x16
152 #define ADM1026_REG_VERSTEP 0x17
153 /* These are the recognized values for the above regs */
154 #define ADM1026_COMPANY_ANALOG_DEV 0x41
155 #define ADM1026_VERSTEP_GENERIC 0x40
156 #define ADM1026_VERSTEP_ADM1026 0x44
158 #define ADM1026_REG_MASK1 0x18
159 #define ADM1026_REG_MASK2 0x19
160 #define ADM1026_REG_MASK3 0x1a
161 #define ADM1026_REG_MASK4 0x1b
163 #define ADM1026_REG_STATUS1 0x20
164 #define ADM1026_REG_STATUS2 0x21
165 #define ADM1026_REG_STATUS3 0x22
166 #define ADM1026_REG_STATUS4 0x23
168 #define ADM1026_FAN_ACTIVATION_TEMP_HYST -6
169 #define ADM1026_FAN_CONTROL_TEMP_RANGE 20
170 #define ADM1026_PWM_MAX 255
172 /* Conversions. Rounding and limit checking is only done on the TO_REG
173 * variants. Note that you should be a bit careful with which arguments
174 * these macros are called: arguments may be evaluated more than once.
177 /* IN are scaled acording to built-in resistors. These are the
178 * voltages corresponding to 3/4 of full scale (192 or 0xc0)
179 * NOTE: The -12V input needs an additional factor to account
180 * for the Vref pullup resistor.
181 * NEG12_OFFSET = SCALE * Vref / V-192 - Vref
182 * = 13875 * 2.50 / 1.875 - 2500
185 * The values in this table are based on Table II, page 15 of the
188 static int adm1026_scaling[] = { /* .001 Volts */
189 2250, 2250, 2250, 2250, 2250, 2250,
190 1875, 1875, 1875, 1875, 3000, 3330,
191 3330, 4995, 2250, 12000, 13875
193 #define NEG12_OFFSET 16000
194 #define SCALE(val,from,to) (((val)*(to) + ((from)/2))/(from))
195 #define INS_TO_REG(n,val) (SENSORS_LIMIT(SCALE(val,adm1026_scaling[n],192),\
197 #define INS_FROM_REG(n,val) (SCALE(val,192,adm1026_scaling[n]))
199 /* FAN speed is measured using 22.5kHz clock and counts for 2 pulses
200 * and we assume a 2 pulse-per-rev fan tach signal
201 * 22500 kHz * 60 (sec/min) * 2 (pulse) / 2 (pulse/rev) == 1350000
203 #define FAN_TO_REG(val,div) ((val)<=0 ? 0xff : SENSORS_LIMIT(1350000/((val)*\
205 #define FAN_FROM_REG(val,div) ((val)==0?-1:(val)==0xff ? 0 : 1350000/((val)*\
207 #define DIV_FROM_REG(val) (1<<(val))
208 #define DIV_TO_REG(val) ((val)>=8 ? 3 : (val)>=4 ? 2 : (val)>=2 ? 1 : 0)
210 /* Temperature is reported in 1 degC increments */
211 #define TEMP_TO_REG(val) (SENSORS_LIMIT(((val)+((val)<0 ? -500 : 500))/1000,\
213 #define TEMP_FROM_REG(val) ((val) * 1000)
214 #define OFFSET_TO_REG(val) (SENSORS_LIMIT(((val)+((val)<0 ? -500 : 500))/1000,\
216 #define OFFSET_FROM_REG(val) ((val) * 1000)
218 #define PWM_TO_REG(val) (SENSORS_LIMIT(val,0,255))
219 #define PWM_FROM_REG(val) (val)
221 #define PWM_MIN_TO_REG(val) ((val) & 0xf0)
222 #define PWM_MIN_FROM_REG(val) (((val) & 0xf0) + ((val) >> 4))
224 /* Analog output is a voltage, and scaled to millivolts. The datasheet
225 * indicates that the DAC could be used to drive the fans, but in our
226 * example board (Arima HDAMA) it isn't connected to the fans at all.
228 #define DAC_TO_REG(val) (SENSORS_LIMIT(((((val)*255)+500)/2500),0,255))
229 #define DAC_FROM_REG(val) (((val)*2500)/255)
231 /* Typically used with systems using a v9.1 VRM spec ? */
232 #define ADM1026_INIT_VRM 91
234 /* Chip sampling rates
236 * Some sensors are not updated more frequently than once per second
237 * so it doesn't make sense to read them more often than that.
238 * We cache the results and return the saved data if the driver
239 * is called again before a second has elapsed.
241 * Also, there is significant configuration data for this chip
242 * So, we keep the config data up to date in the cache
243 * when it is written and only sample it once every 5 *minutes*
245 #define ADM1026_DATA_INTERVAL (1 * HZ)
246 #define ADM1026_CONFIG_INTERVAL (5 * 60 * HZ)
248 /* We allow for multiple chips in a single system.
250 * For each registered ADM1026, we need to keep state information
251 * at client->data. The adm1026_data structure is dynamically
252 * allocated, when a new client structure is allocated. */
260 struct adm1026_data {
261 struct i2c_client client;
262 struct class_device *class_dev;
263 struct semaphore lock;
266 struct semaphore update_lock;
267 int valid; /* !=0 if following fields are valid */
268 unsigned long last_reading; /* In jiffies */
269 unsigned long last_config; /* In jiffies */
271 u8 in[17]; /* Register value */
272 u8 in_max[17]; /* Register value */
273 u8 in_min[17]; /* Register value */
274 s8 temp[3]; /* Register value */
275 s8 temp_min[3]; /* Register value */
276 s8 temp_max[3]; /* Register value */
277 s8 temp_tmin[3]; /* Register value */
278 s8 temp_crit[3]; /* Register value */
279 s8 temp_offset[3]; /* Register value */
280 u8 fan[8]; /* Register value */
281 u8 fan_min[8]; /* Register value */
282 u8 fan_div[8]; /* Decoded value */
283 struct pwm_data pwm1; /* Pwm control values */
284 int vid; /* Decoded value */
285 u8 vrm; /* VRM version */
286 u8 analog_out; /* Register value (DAC) */
287 long alarms; /* Register encoding, combined */
288 long alarm_mask; /* Register encoding, combined */
289 long gpio; /* Register encoding, combined */
290 long gpio_mask; /* Register encoding, combined */
291 u8 gpio_config[17]; /* Decoded value */
292 u8 config1; /* Register value */
293 u8 config2; /* Register value */
294 u8 config3; /* Register value */
297 static int adm1026_attach_adapter(struct i2c_adapter *adapter);
298 static int adm1026_detect(struct i2c_adapter *adapter, int address,
300 static int adm1026_detach_client(struct i2c_client *client);
301 static int adm1026_read_value(struct i2c_client *client, u8 register);
302 static int adm1026_write_value(struct i2c_client *client, u8 register,
304 static void adm1026_print_gpio(struct i2c_client *client);
305 static void adm1026_fixup_gpio(struct i2c_client *client);
306 static struct adm1026_data *adm1026_update_device(struct device *dev);
307 static void adm1026_init_client(struct i2c_client *client);
310 static struct i2c_driver adm1026_driver = {
311 .owner = THIS_MODULE,
313 .attach_adapter = adm1026_attach_adapter,
314 .detach_client = adm1026_detach_client,
317 static int adm1026_attach_adapter(struct i2c_adapter *adapter)
319 if (!(adapter->class & I2C_CLASS_HWMON)) {
322 return i2c_probe(adapter, &addr_data, adm1026_detect);
325 static int adm1026_detach_client(struct i2c_client *client)
327 struct adm1026_data *data = i2c_get_clientdata(client);
328 hwmon_device_unregister(data->class_dev);
329 i2c_detach_client(client);
334 static int adm1026_read_value(struct i2c_client *client, u8 reg)
339 /* "RAM" locations */
340 res = i2c_smbus_read_byte_data(client, reg) & 0xff;
342 /* EEPROM, do nothing */
348 static int adm1026_write_value(struct i2c_client *client, u8 reg, int value)
353 /* "RAM" locations */
354 res = i2c_smbus_write_byte_data(client, reg, value);
356 /* EEPROM, do nothing */
362 static void adm1026_init_client(struct i2c_client *client)
365 struct adm1026_data *data = i2c_get_clientdata(client);
367 dev_dbg(&client->dev, "Initializing device\n");
368 /* Read chip config */
369 data->config1 = adm1026_read_value(client, ADM1026_REG_CONFIG1);
370 data->config2 = adm1026_read_value(client, ADM1026_REG_CONFIG2);
371 data->config3 = adm1026_read_value(client, ADM1026_REG_CONFIG3);
373 /* Inform user of chip config */
374 dev_dbg(&client->dev, "ADM1026_REG_CONFIG1 is: 0x%02x\n",
376 if ((data->config1 & CFG1_MONITOR) == 0) {
377 dev_dbg(&client->dev, "Monitoring not currently "
380 if (data->config1 & CFG1_INT_ENABLE) {
381 dev_dbg(&client->dev, "SMBALERT interrupts are "
384 if (data->config1 & CFG1_AIN8_9) {
385 dev_dbg(&client->dev, "in8 and in9 enabled. "
386 "temp3 disabled.\n");
388 dev_dbg(&client->dev, "temp3 enabled. in8 and "
391 if (data->config1 & CFG1_THERM_HOT) {
392 dev_dbg(&client->dev, "Automatic THERM, PWM, "
393 "and temp limits enabled.\n");
396 value = data->config3;
397 if (data->config3 & CFG3_GPIO16_ENABLE) {
398 dev_dbg(&client->dev, "GPIO16 enabled. THERM "
401 dev_dbg(&client->dev, "THERM pin enabled. "
402 "GPIO16 disabled.\n");
404 if (data->config3 & CFG3_VREF_250) {
405 dev_dbg(&client->dev, "Vref is 2.50 Volts.\n");
407 dev_dbg(&client->dev, "Vref is 1.82 Volts.\n");
409 /* Read and pick apart the existing GPIO configuration */
411 for (i = 0;i <= 15;++i) {
412 if ((i & 0x03) == 0) {
413 value = adm1026_read_value(client,
414 ADM1026_REG_GPIO_CFG_0_3 + i/4);
416 data->gpio_config[i] = value & 0x03;
419 data->gpio_config[16] = (data->config3 >> 6) & 0x03;
421 /* ... and then print it */
422 adm1026_print_gpio(client);
424 /* If the user asks us to reprogram the GPIO config, then
427 if (gpio_input[0] != -1 || gpio_output[0] != -1
428 || gpio_inverted[0] != -1 || gpio_normal[0] != -1
429 || gpio_fan[0] != -1) {
430 adm1026_fixup_gpio(client);
433 /* WE INTENTIONALLY make no changes to the limits,
434 * offsets, pwms, fans and zones. If they were
435 * configured, we don't want to mess with them.
436 * If they weren't, the default is 100% PWM, no
437 * control and will suffice until 'sensors -s'
438 * can be run by the user. We DO set the default
439 * value for pwm1.auto_pwm_min to its maximum
440 * so that enabling automatic pwm fan control
441 * without first setting a value for pwm1.auto_pwm_min
442 * will not result in potentially dangerous fan speed decrease.
444 data->pwm1.auto_pwm_min=255;
445 /* Start monitoring */
446 value = adm1026_read_value(client, ADM1026_REG_CONFIG1);
447 /* Set MONITOR, clear interrupt acknowledge and s/w reset */
448 value = (value | CFG1_MONITOR) & (~CFG1_INT_CLEAR & ~CFG1_RESET);
449 dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value);
450 data->config1 = value;
451 adm1026_write_value(client, ADM1026_REG_CONFIG1, value);
453 /* initialize fan_div[] to hardware defaults */
454 value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3) |
455 (adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7) << 8);
456 for (i = 0;i <= 7;++i) {
457 data->fan_div[i] = DIV_FROM_REG(value & 0x03);
462 static void adm1026_print_gpio(struct i2c_client *client)
464 struct adm1026_data *data = i2c_get_clientdata(client);
467 dev_dbg(&client->dev, "GPIO config is:");
468 for (i = 0;i <= 7;++i) {
469 if (data->config2 & (1 << i)) {
470 dev_dbg(&client->dev, "\t%sGP%s%d\n",
471 data->gpio_config[i] & 0x02 ? "" : "!",
472 data->gpio_config[i] & 0x01 ? "OUT" : "IN",
475 dev_dbg(&client->dev, "\tFAN%d\n", i);
478 for (i = 8;i <= 15;++i) {
479 dev_dbg(&client->dev, "\t%sGP%s%d\n",
480 data->gpio_config[i] & 0x02 ? "" : "!",
481 data->gpio_config[i] & 0x01 ? "OUT" : "IN",
484 if (data->config3 & CFG3_GPIO16_ENABLE) {
485 dev_dbg(&client->dev, "\t%sGP%s16\n",
486 data->gpio_config[16] & 0x02 ? "" : "!",
487 data->gpio_config[16] & 0x01 ? "OUT" : "IN");
489 /* GPIO16 is THERM */
490 dev_dbg(&client->dev, "\tTHERM\n");
494 static void adm1026_fixup_gpio(struct i2c_client *client)
496 struct adm1026_data *data = i2c_get_clientdata(client);
500 /* Make the changes requested. */
501 /* We may need to unlock/stop monitoring or soft-reset the
502 * chip before we can make changes. This hasn't been
507 for (i = 0;i <= 16;++i) {
508 if (gpio_output[i] >= 0 && gpio_output[i] <= 16) {
509 data->gpio_config[gpio_output[i]] |= 0x01;
511 /* if GPIO0-7 is output, it isn't a FAN tach */
512 if (gpio_output[i] >= 0 && gpio_output[i] <= 7) {
513 data->config2 |= 1 << gpio_output[i];
517 /* Input overrides output */
518 for (i = 0;i <= 16;++i) {
519 if (gpio_input[i] >= 0 && gpio_input[i] <= 16) {
520 data->gpio_config[gpio_input[i]] &= ~ 0x01;
522 /* if GPIO0-7 is input, it isn't a FAN tach */
523 if (gpio_input[i] >= 0 && gpio_input[i] <= 7) {
524 data->config2 |= 1 << gpio_input[i];
529 for (i = 0;i <= 16;++i) {
530 if (gpio_inverted[i] >= 0 && gpio_inverted[i] <= 16) {
531 data->gpio_config[gpio_inverted[i]] &= ~ 0x02;
535 /* Normal overrides inverted */
536 for (i = 0;i <= 16;++i) {
537 if (gpio_normal[i] >= 0 && gpio_normal[i] <= 16) {
538 data->gpio_config[gpio_normal[i]] |= 0x02;
542 /* Fan overrides input and output */
543 for (i = 0;i <= 7;++i) {
544 if (gpio_fan[i] >= 0 && gpio_fan[i] <= 7) {
545 data->config2 &= ~(1 << gpio_fan[i]);
549 /* Write new configs to registers */
550 adm1026_write_value(client, ADM1026_REG_CONFIG2, data->config2);
551 data->config3 = (data->config3 & 0x3f)
552 | ((data->gpio_config[16] & 0x03) << 6);
553 adm1026_write_value(client, ADM1026_REG_CONFIG3, data->config3);
554 for (i = 15, value = 0;i >= 0;--i) {
556 value |= data->gpio_config[i] & 0x03;
557 if ((i & 0x03) == 0) {
558 adm1026_write_value(client,
559 ADM1026_REG_GPIO_CFG_0_3 + i/4,
565 /* Print the new config */
566 adm1026_print_gpio(client);
570 static struct adm1026_data *adm1026_update_device(struct device *dev)
572 struct i2c_client *client = to_i2c_client(dev);
573 struct adm1026_data *data = i2c_get_clientdata(client);
575 long value, alarms, gpio;
577 down(&data->update_lock);
579 || time_after(jiffies, data->last_reading + ADM1026_DATA_INTERVAL)) {
580 /* Things that change quickly */
581 dev_dbg(&client->dev,"Reading sensor values\n");
582 for (i = 0;i <= 16;++i) {
584 adm1026_read_value(client, ADM1026_REG_IN[i]);
587 for (i = 0;i <= 7;++i) {
589 adm1026_read_value(client, ADM1026_REG_FAN(i));
592 for (i = 0;i <= 2;++i) {
593 /* NOTE: temp[] is s8 and we assume 2's complement
594 * "conversion" in the assignment */
596 adm1026_read_value(client, ADM1026_REG_TEMP[i]);
599 data->pwm1.pwm = adm1026_read_value(client,
601 data->analog_out = adm1026_read_value(client,
603 /* GPIO16 is MSbit of alarms, move it to gpio */
604 alarms = adm1026_read_value(client, ADM1026_REG_STATUS4);
605 gpio = alarms & 0x80 ? 0x0100 : 0; /* GPIO16 */
608 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS3);
610 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS2);
612 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS1);
613 data->alarms = alarms;
615 /* Read the GPIO values */
616 gpio |= adm1026_read_value(client,
617 ADM1026_REG_GPIO_STATUS_8_15);
619 gpio |= adm1026_read_value(client,
620 ADM1026_REG_GPIO_STATUS_0_7);
623 data->last_reading = jiffies;
624 }; /* last_reading */
627 time_after(jiffies, data->last_config + ADM1026_CONFIG_INTERVAL)) {
628 /* Things that don't change often */
629 dev_dbg(&client->dev, "Reading config values\n");
630 for (i = 0;i <= 16;++i) {
631 data->in_min[i] = adm1026_read_value(client,
632 ADM1026_REG_IN_MIN[i]);
633 data->in_max[i] = adm1026_read_value(client,
634 ADM1026_REG_IN_MAX[i]);
637 value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3)
638 | (adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7)
640 for (i = 0;i <= 7;++i) {
641 data->fan_min[i] = adm1026_read_value(client,
642 ADM1026_REG_FAN_MIN(i));
643 data->fan_div[i] = DIV_FROM_REG(value & 0x03);
647 for (i = 0; i <= 2; ++i) {
648 /* NOTE: temp_xxx[] are s8 and we assume 2's
649 * complement "conversion" in the assignment
651 data->temp_min[i] = adm1026_read_value(client,
652 ADM1026_REG_TEMP_MIN[i]);
653 data->temp_max[i] = adm1026_read_value(client,
654 ADM1026_REG_TEMP_MAX[i]);
655 data->temp_tmin[i] = adm1026_read_value(client,
656 ADM1026_REG_TEMP_TMIN[i]);
657 data->temp_crit[i] = adm1026_read_value(client,
658 ADM1026_REG_TEMP_THERM[i]);
659 data->temp_offset[i] = adm1026_read_value(client,
660 ADM1026_REG_TEMP_OFFSET[i]);
663 /* Read the STATUS/alarm masks */
664 alarms = adm1026_read_value(client, ADM1026_REG_MASK4);
665 gpio = alarms & 0x80 ? 0x0100 : 0; /* GPIO16 */
666 alarms = (alarms & 0x7f) << 8;
667 alarms |= adm1026_read_value(client, ADM1026_REG_MASK3);
669 alarms |= adm1026_read_value(client, ADM1026_REG_MASK2);
671 alarms |= adm1026_read_value(client, ADM1026_REG_MASK1);
672 data->alarm_mask = alarms;
674 /* Read the GPIO values */
675 gpio |= adm1026_read_value(client,
676 ADM1026_REG_GPIO_MASK_8_15);
678 gpio |= adm1026_read_value(client, ADM1026_REG_GPIO_MASK_0_7);
679 data->gpio_mask = gpio;
681 /* Read various values from CONFIG1 */
682 data->config1 = adm1026_read_value(client,
683 ADM1026_REG_CONFIG1);
684 if (data->config1 & CFG1_PWM_AFC) {
685 data->pwm1.enable = 2;
686 data->pwm1.auto_pwm_min =
687 PWM_MIN_FROM_REG(data->pwm1.pwm);
689 /* Read the GPIO config */
690 data->config2 = adm1026_read_value(client,
691 ADM1026_REG_CONFIG2);
692 data->config3 = adm1026_read_value(client,
693 ADM1026_REG_CONFIG3);
694 data->gpio_config[16] = (data->config3 >> 6) & 0x03;
697 for (i = 0;i <= 15;++i) {
698 if ((i & 0x03) == 0) {
699 value = adm1026_read_value(client,
700 ADM1026_REG_GPIO_CFG_0_3 + i/4);
702 data->gpio_config[i] = value & 0x03;
706 data->last_config = jiffies;
709 dev_dbg(&client->dev, "Setting VID from GPIO11-15.\n");
710 data->vid = (data->gpio >> 11) & 0x1f;
712 up(&data->update_lock);
716 static ssize_t show_in(struct device *dev, struct device_attribute *attr,
719 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
720 int nr = sensor_attr->index;
721 struct adm1026_data *data = adm1026_update_device(dev);
722 return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in[nr]));
724 static ssize_t show_in_min(struct device *dev, struct device_attribute *attr,
727 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
728 int nr = sensor_attr->index;
729 struct adm1026_data *data = adm1026_update_device(dev);
730 return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_min[nr]));
732 static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
733 const char *buf, size_t count)
735 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
736 int nr = sensor_attr->index;
737 struct i2c_client *client = to_i2c_client(dev);
738 struct adm1026_data *data = i2c_get_clientdata(client);
739 int val = simple_strtol(buf, NULL, 10);
741 down(&data->update_lock);
742 data->in_min[nr] = INS_TO_REG(nr, val);
743 adm1026_write_value(client, ADM1026_REG_IN_MIN[nr], data->in_min[nr]);
744 up(&data->update_lock);
747 static ssize_t show_in_max(struct device *dev, struct device_attribute *attr,
750 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
751 int nr = sensor_attr->index;
752 struct adm1026_data *data = adm1026_update_device(dev);
753 return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_max[nr]));
755 static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
756 const char *buf, size_t count)
758 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
759 int nr = sensor_attr->index;
760 struct i2c_client *client = to_i2c_client(dev);
761 struct adm1026_data *data = i2c_get_clientdata(client);
762 int val = simple_strtol(buf, NULL, 10);
764 down(&data->update_lock);
765 data->in_max[nr] = INS_TO_REG(nr, val);
766 adm1026_write_value(client, ADM1026_REG_IN_MAX[nr], data->in_max[nr]);
767 up(&data->update_lock);
771 #define in_reg(offset) \
772 static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in, \
774 static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \
775 show_in_min, set_in_min, offset); \
776 static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \
777 show_in_max, set_in_max, offset);
797 static ssize_t show_in16(struct device *dev, struct device_attribute *attr, char *buf)
799 struct adm1026_data *data = adm1026_update_device(dev);
800 return sprintf(buf,"%d\n", INS_FROM_REG(16, data->in[16]) -
803 static ssize_t show_in16_min(struct device *dev, struct device_attribute *attr, char *buf)
805 struct adm1026_data *data = adm1026_update_device(dev);
806 return sprintf(buf,"%d\n", INS_FROM_REG(16, data->in_min[16])
809 static ssize_t set_in16_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
811 struct i2c_client *client = to_i2c_client(dev);
812 struct adm1026_data *data = i2c_get_clientdata(client);
813 int val = simple_strtol(buf, NULL, 10);
815 down(&data->update_lock);
816 data->in_min[16] = INS_TO_REG(16, val + NEG12_OFFSET);
817 adm1026_write_value(client, ADM1026_REG_IN_MIN[16], data->in_min[16]);
818 up(&data->update_lock);
821 static ssize_t show_in16_max(struct device *dev, struct device_attribute *attr, char *buf)
823 struct adm1026_data *data = adm1026_update_device(dev);
824 return sprintf(buf,"%d\n", INS_FROM_REG(16, data->in_max[16])
827 static ssize_t set_in16_max(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
829 struct i2c_client *client = to_i2c_client(dev);
830 struct adm1026_data *data = i2c_get_clientdata(client);
831 int val = simple_strtol(buf, NULL, 10);
833 down(&data->update_lock);
834 data->in_max[16] = INS_TO_REG(16, val+NEG12_OFFSET);
835 adm1026_write_value(client, ADM1026_REG_IN_MAX[16], data->in_max[16]);
836 up(&data->update_lock);
840 static SENSOR_DEVICE_ATTR(in16_input, S_IRUGO, show_in16, NULL, 16);
841 static SENSOR_DEVICE_ATTR(in16_min, S_IRUGO | S_IWUSR, show_in16_min, set_in16_min, 16);
842 static SENSOR_DEVICE_ATTR(in16_max, S_IRUGO | S_IWUSR, show_in16_max, set_in16_max, 16);
847 /* Now add fan read/write functions */
849 static ssize_t show_fan(struct device *dev, struct device_attribute *attr,
852 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
853 int nr = sensor_attr->index;
854 struct adm1026_data *data = adm1026_update_device(dev);
855 return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan[nr],
858 static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr,
861 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
862 int nr = sensor_attr->index;
863 struct adm1026_data *data = adm1026_update_device(dev);
864 return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan_min[nr],
867 static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
868 const char *buf, size_t count)
870 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
871 int nr = sensor_attr->index;
872 struct i2c_client *client = to_i2c_client(dev);
873 struct adm1026_data *data = i2c_get_clientdata(client);
874 int val = simple_strtol(buf, NULL, 10);
876 down(&data->update_lock);
877 data->fan_min[nr] = FAN_TO_REG(val, data->fan_div[nr]);
878 adm1026_write_value(client, ADM1026_REG_FAN_MIN(nr),
880 up(&data->update_lock);
884 #define fan_offset(offset) \
885 static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan, NULL, \
887 static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
888 show_fan_min, set_fan_min, offset - 1);
899 /* Adjust fan_min to account for new fan divisor */
900 static void fixup_fan_min(struct device *dev, int fan, int old_div)
902 struct i2c_client *client = to_i2c_client(dev);
903 struct adm1026_data *data = i2c_get_clientdata(client);
905 int new_div = data->fan_div[fan];
907 /* 0 and 0xff are special. Don't adjust them */
908 if (data->fan_min[fan] == 0 || data->fan_min[fan] == 0xff) {
912 new_min = data->fan_min[fan] * old_div / new_div;
913 new_min = SENSORS_LIMIT(new_min, 1, 254);
914 data->fan_min[fan] = new_min;
915 adm1026_write_value(client, ADM1026_REG_FAN_MIN(fan), new_min);
918 /* Now add fan_div read/write functions */
919 static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr,
922 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
923 int nr = sensor_attr->index;
924 struct adm1026_data *data = adm1026_update_device(dev);
925 return sprintf(buf,"%d\n", data->fan_div[nr]);
927 static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
928 const char *buf, size_t count)
930 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
931 int nr = sensor_attr->index;
932 struct i2c_client *client = to_i2c_client(dev);
933 struct adm1026_data *data = i2c_get_clientdata(client);
934 int val,orig_div,new_div,shift;
936 val = simple_strtol(buf, NULL, 10);
937 new_div = DIV_TO_REG(val);
941 down(&data->update_lock);
942 orig_div = data->fan_div[nr];
943 data->fan_div[nr] = DIV_FROM_REG(new_div);
945 if (nr < 4) { /* 0 <= nr < 4 */
947 adm1026_write_value(client, ADM1026_REG_FAN_DIV_0_3,
948 ((DIV_TO_REG(orig_div) & (~(0x03 << shift))) |
949 (new_div << shift)));
950 } else { /* 3 < nr < 8 */
951 shift = 2 * (nr - 4);
952 adm1026_write_value(client, ADM1026_REG_FAN_DIV_4_7,
953 ((DIV_TO_REG(orig_div) & (~(0x03 << (2 * shift)))) |
954 (new_div << shift)));
957 if (data->fan_div[nr] != orig_div) {
958 fixup_fan_min(dev,nr,orig_div);
960 up(&data->update_lock);
964 #define fan_offset_div(offset) \
965 static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \
966 show_fan_div, set_fan_div, offset - 1);
978 static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
981 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
982 int nr = sensor_attr->index;
983 struct adm1026_data *data = adm1026_update_device(dev);
984 return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp[nr]));
986 static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr,
989 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
990 int nr = sensor_attr->index;
991 struct adm1026_data *data = adm1026_update_device(dev);
992 return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_min[nr]));
994 static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
995 const char *buf, size_t count)
997 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
998 int nr = sensor_attr->index;
999 struct i2c_client *client = to_i2c_client(dev);
1000 struct adm1026_data *data = i2c_get_clientdata(client);
1001 int val = simple_strtol(buf, NULL, 10);
1003 down(&data->update_lock);
1004 data->temp_min[nr] = TEMP_TO_REG(val);
1005 adm1026_write_value(client, ADM1026_REG_TEMP_MIN[nr],
1006 data->temp_min[nr]);
1007 up(&data->update_lock);
1010 static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr,
1013 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1014 int nr = sensor_attr->index;
1015 struct adm1026_data *data = adm1026_update_device(dev);
1016 return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_max[nr]));
1018 static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
1019 const char *buf, size_t count)
1021 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1022 int nr = sensor_attr->index;
1023 struct i2c_client *client = to_i2c_client(dev);
1024 struct adm1026_data *data = i2c_get_clientdata(client);
1025 int val = simple_strtol(buf, NULL, 10);
1027 down(&data->update_lock);
1028 data->temp_max[nr] = TEMP_TO_REG(val);
1029 adm1026_write_value(client, ADM1026_REG_TEMP_MAX[nr],
1030 data->temp_max[nr]);
1031 up(&data->update_lock);
1035 #define temp_reg(offset) \
1036 static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp, \
1037 NULL, offset - 1); \
1038 static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \
1039 show_temp_min, set_temp_min, offset - 1); \
1040 static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \
1041 show_temp_max, set_temp_max, offset - 1);
1048 static ssize_t show_temp_offset(struct device *dev,
1049 struct device_attribute *attr, char *buf)
1051 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1052 int nr = sensor_attr->index;
1053 struct adm1026_data *data = adm1026_update_device(dev);
1054 return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_offset[nr]));
1056 static ssize_t set_temp_offset(struct device *dev,
1057 struct device_attribute *attr, const char *buf,
1060 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1061 int nr = sensor_attr->index;
1062 struct i2c_client *client = to_i2c_client(dev);
1063 struct adm1026_data *data = i2c_get_clientdata(client);
1064 int val = simple_strtol(buf, NULL, 10);
1066 down(&data->update_lock);
1067 data->temp_offset[nr] = TEMP_TO_REG(val);
1068 adm1026_write_value(client, ADM1026_REG_TEMP_OFFSET[nr],
1069 data->temp_offset[nr]);
1070 up(&data->update_lock);
1074 #define temp_offset_reg(offset) \
1075 static SENSOR_DEVICE_ATTR(temp##offset##_offset, S_IRUGO | S_IWUSR, \
1076 show_temp_offset, set_temp_offset, offset - 1);
1082 static ssize_t show_temp_auto_point1_temp_hyst(struct device *dev,
1083 struct device_attribute *attr, char *buf)
1085 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1086 int nr = sensor_attr->index;
1087 struct adm1026_data *data = adm1026_update_device(dev);
1088 return sprintf(buf,"%d\n", TEMP_FROM_REG(
1089 ADM1026_FAN_ACTIVATION_TEMP_HYST + data->temp_tmin[nr]));
1091 static ssize_t show_temp_auto_point2_temp(struct device *dev,
1092 struct device_attribute *attr, char *buf)
1094 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1095 int nr = sensor_attr->index;
1096 struct adm1026_data *data = adm1026_update_device(dev);
1097 return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_tmin[nr] +
1098 ADM1026_FAN_CONTROL_TEMP_RANGE));
1100 static ssize_t show_temp_auto_point1_temp(struct device *dev,
1101 struct device_attribute *attr, char *buf)
1103 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1104 int nr = sensor_attr->index;
1105 struct adm1026_data *data = adm1026_update_device(dev);
1106 return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_tmin[nr]));
1108 static ssize_t set_temp_auto_point1_temp(struct device *dev,
1109 struct device_attribute *attr, const char *buf, size_t count)
1111 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1112 int nr = sensor_attr->index;
1113 struct i2c_client *client = to_i2c_client(dev);
1114 struct adm1026_data *data = i2c_get_clientdata(client);
1115 int val = simple_strtol(buf, NULL, 10);
1117 down(&data->update_lock);
1118 data->temp_tmin[nr] = TEMP_TO_REG(val);
1119 adm1026_write_value(client, ADM1026_REG_TEMP_TMIN[nr],
1120 data->temp_tmin[nr]);
1121 up(&data->update_lock);
1125 #define temp_auto_point(offset) \
1126 static SENSOR_DEVICE_ATTR(temp##offset##_auto_point1_temp, S_IRUGO | S_IWUSR, \
1127 show_temp_auto_point1_temp, set_temp_auto_point1_temp, \
1129 static SENSOR_DEVICE_ATTR(temp##offset##_auto_point1_temp_hyst, S_IRUGO, \
1130 show_temp_auto_point1_temp_hyst, NULL, offset - 1); \
1131 static SENSOR_DEVICE_ATTR(temp##offset##_auto_point2_temp, S_IRUGO, \
1132 show_temp_auto_point2_temp, NULL, offset - 1);
1138 static ssize_t show_temp_crit_enable(struct device *dev,
1139 struct device_attribute *attr, char *buf)
1141 struct adm1026_data *data = adm1026_update_device(dev);
1142 return sprintf(buf,"%d\n", (data->config1 & CFG1_THERM_HOT) >> 4);
1144 static ssize_t set_temp_crit_enable(struct device *dev,
1145 struct device_attribute *attr, const char *buf, size_t count)
1147 struct i2c_client *client = to_i2c_client(dev);
1148 struct adm1026_data *data = i2c_get_clientdata(client);
1149 int val = simple_strtol(buf, NULL, 10);
1151 if ((val == 1) || (val==0)) {
1152 down(&data->update_lock);
1153 data->config1 = (data->config1 & ~CFG1_THERM_HOT) | (val << 4);
1154 adm1026_write_value(client, ADM1026_REG_CONFIG1,
1156 up(&data->update_lock);
1161 #define temp_crit_enable(offset) \
1162 static DEVICE_ATTR(temp##offset##_crit_enable, S_IRUGO | S_IWUSR, \
1163 show_temp_crit_enable, set_temp_crit_enable);
1165 temp_crit_enable(1);
1166 temp_crit_enable(2);
1167 temp_crit_enable(3);
1169 static ssize_t show_temp_crit(struct device *dev,
1170 struct device_attribute *attr, char *buf)
1172 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1173 int nr = sensor_attr->index;
1174 struct adm1026_data *data = adm1026_update_device(dev);
1175 return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_crit[nr]));
1177 static ssize_t set_temp_crit(struct device *dev, struct device_attribute *attr,
1178 const char *buf, size_t count)
1180 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1181 int nr = sensor_attr->index;
1182 struct i2c_client *client = to_i2c_client(dev);
1183 struct adm1026_data *data = i2c_get_clientdata(client);
1184 int val = simple_strtol(buf, NULL, 10);
1186 down(&data->update_lock);
1187 data->temp_crit[nr] = TEMP_TO_REG(val);
1188 adm1026_write_value(client, ADM1026_REG_TEMP_THERM[nr],
1189 data->temp_crit[nr]);
1190 up(&data->update_lock);
1194 #define temp_crit_reg(offset) \
1195 static SENSOR_DEVICE_ATTR(temp##offset##_crit, S_IRUGO | S_IWUSR, \
1196 show_temp_crit, set_temp_crit, offset - 1);
1202 static ssize_t show_analog_out_reg(struct device *dev, struct device_attribute *attr, char *buf)
1204 struct adm1026_data *data = adm1026_update_device(dev);
1205 return sprintf(buf,"%d\n", DAC_FROM_REG(data->analog_out));
1207 static ssize_t set_analog_out_reg(struct device *dev, struct device_attribute *attr, const char *buf,
1210 struct i2c_client *client = to_i2c_client(dev);
1211 struct adm1026_data *data = i2c_get_clientdata(client);
1212 int val = simple_strtol(buf, NULL, 10);
1214 down(&data->update_lock);
1215 data->analog_out = DAC_TO_REG(val);
1216 adm1026_write_value(client, ADM1026_REG_DAC, data->analog_out);
1217 up(&data->update_lock);
1221 static DEVICE_ATTR(analog_out, S_IRUGO | S_IWUSR, show_analog_out_reg,
1222 set_analog_out_reg);
1224 static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf)
1226 struct adm1026_data *data = adm1026_update_device(dev);
1227 return sprintf(buf,"%d\n", vid_from_reg(data->vid & 0x3f, data->vrm));
1229 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
1231 static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf)
1233 struct adm1026_data *data = adm1026_update_device(dev);
1234 return sprintf(buf,"%d\n", data->vrm);
1236 static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf,
1239 struct i2c_client *client = to_i2c_client(dev);
1240 struct adm1026_data *data = i2c_get_clientdata(client);
1242 data->vrm = simple_strtol(buf, NULL, 10);
1246 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
1248 static ssize_t show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
1250 struct adm1026_data *data = adm1026_update_device(dev);
1251 return sprintf(buf, "%ld\n", (long) (data->alarms));
1254 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
1256 static ssize_t show_alarm_mask(struct device *dev, struct device_attribute *attr, char *buf)
1258 struct adm1026_data *data = adm1026_update_device(dev);
1259 return sprintf(buf,"%ld\n", data->alarm_mask);
1261 static ssize_t set_alarm_mask(struct device *dev, struct device_attribute *attr, const char *buf,
1264 struct i2c_client *client = to_i2c_client(dev);
1265 struct adm1026_data *data = i2c_get_clientdata(client);
1266 int val = simple_strtol(buf, NULL, 10);
1269 down(&data->update_lock);
1270 data->alarm_mask = val & 0x7fffffff;
1271 mask = data->alarm_mask
1272 | (data->gpio_mask & 0x10000 ? 0x80000000 : 0);
1273 adm1026_write_value(client, ADM1026_REG_MASK1,
1276 adm1026_write_value(client, ADM1026_REG_MASK2,
1279 adm1026_write_value(client, ADM1026_REG_MASK3,
1282 adm1026_write_value(client, ADM1026_REG_MASK4,
1284 up(&data->update_lock);
1288 static DEVICE_ATTR(alarm_mask, S_IRUGO | S_IWUSR, show_alarm_mask,
1292 static ssize_t show_gpio(struct device *dev, struct device_attribute *attr, char *buf)
1294 struct adm1026_data *data = adm1026_update_device(dev);
1295 return sprintf(buf,"%ld\n", data->gpio);
1297 static ssize_t set_gpio(struct device *dev, struct device_attribute *attr, const char *buf,
1300 struct i2c_client *client = to_i2c_client(dev);
1301 struct adm1026_data *data = i2c_get_clientdata(client);
1302 int val = simple_strtol(buf, NULL, 10);
1305 down(&data->update_lock);
1306 data->gpio = val & 0x1ffff;
1308 adm1026_write_value(client, ADM1026_REG_GPIO_STATUS_0_7,gpio & 0xff);
1310 adm1026_write_value(client, ADM1026_REG_GPIO_STATUS_8_15,gpio & 0xff);
1311 gpio = ((gpio >> 1) & 0x80) | (data->alarms >> 24 & 0x7f);
1312 adm1026_write_value(client, ADM1026_REG_STATUS4,gpio & 0xff);
1313 up(&data->update_lock);
1317 static DEVICE_ATTR(gpio, S_IRUGO | S_IWUSR, show_gpio, set_gpio);
1320 static ssize_t show_gpio_mask(struct device *dev, struct device_attribute *attr, char *buf)
1322 struct adm1026_data *data = adm1026_update_device(dev);
1323 return sprintf(buf,"%ld\n", data->gpio_mask);
1325 static ssize_t set_gpio_mask(struct device *dev, struct device_attribute *attr, const char *buf,
1328 struct i2c_client *client = to_i2c_client(dev);
1329 struct adm1026_data *data = i2c_get_clientdata(client);
1330 int val = simple_strtol(buf, NULL, 10);
1333 down(&data->update_lock);
1334 data->gpio_mask = val & 0x1ffff;
1335 mask = data->gpio_mask;
1336 adm1026_write_value(client, ADM1026_REG_GPIO_MASK_0_7,mask & 0xff);
1338 adm1026_write_value(client, ADM1026_REG_GPIO_MASK_8_15,mask & 0xff);
1339 mask = ((mask >> 1) & 0x80) | (data->alarm_mask >> 24 & 0x7f);
1340 adm1026_write_value(client, ADM1026_REG_MASK1,mask & 0xff);
1341 up(&data->update_lock);
1345 static DEVICE_ATTR(gpio_mask, S_IRUGO | S_IWUSR, show_gpio_mask, set_gpio_mask);
1347 static ssize_t show_pwm_reg(struct device *dev, struct device_attribute *attr, char *buf)
1349 struct adm1026_data *data = adm1026_update_device(dev);
1350 return sprintf(buf,"%d\n", PWM_FROM_REG(data->pwm1.pwm));
1352 static ssize_t set_pwm_reg(struct device *dev, struct device_attribute *attr, const char *buf,
1355 struct i2c_client *client = to_i2c_client(dev);
1356 struct adm1026_data *data = i2c_get_clientdata(client);
1358 if (data->pwm1.enable == 1) {
1359 int val = simple_strtol(buf, NULL, 10);
1361 down(&data->update_lock);
1362 data->pwm1.pwm = PWM_TO_REG(val);
1363 adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm);
1364 up(&data->update_lock);
1368 static ssize_t show_auto_pwm_min(struct device *dev, struct device_attribute *attr, char *buf)
1370 struct adm1026_data *data = adm1026_update_device(dev);
1371 return sprintf(buf,"%d\n", data->pwm1.auto_pwm_min);
1373 static ssize_t set_auto_pwm_min(struct device *dev, struct device_attribute *attr, const char *buf,
1376 struct i2c_client *client = to_i2c_client(dev);
1377 struct adm1026_data *data = i2c_get_clientdata(client);
1378 int val = simple_strtol(buf, NULL, 10);
1380 down(&data->update_lock);
1381 data->pwm1.auto_pwm_min = SENSORS_LIMIT(val,0,255);
1382 if (data->pwm1.enable == 2) { /* apply immediately */
1383 data->pwm1.pwm = PWM_TO_REG((data->pwm1.pwm & 0x0f) |
1384 PWM_MIN_TO_REG(data->pwm1.auto_pwm_min));
1385 adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm);
1387 up(&data->update_lock);
1390 static ssize_t show_auto_pwm_max(struct device *dev, struct device_attribute *attr, char *buf)
1392 return sprintf(buf,"%d\n", ADM1026_PWM_MAX);
1394 static ssize_t show_pwm_enable(struct device *dev, struct device_attribute *attr, char *buf)
1396 struct adm1026_data *data = adm1026_update_device(dev);
1397 return sprintf(buf,"%d\n", data->pwm1.enable);
1399 static ssize_t set_pwm_enable(struct device *dev, struct device_attribute *attr, const char *buf,
1402 struct i2c_client *client = to_i2c_client(dev);
1403 struct adm1026_data *data = i2c_get_clientdata(client);
1404 int val = simple_strtol(buf, NULL, 10);
1407 if ((val >= 0) && (val < 3)) {
1408 down(&data->update_lock);
1409 old_enable = data->pwm1.enable;
1410 data->pwm1.enable = val;
1411 data->config1 = (data->config1 & ~CFG1_PWM_AFC)
1412 | ((val == 2) ? CFG1_PWM_AFC : 0);
1413 adm1026_write_value(client, ADM1026_REG_CONFIG1,
1415 if (val == 2) { /* apply pwm1_auto_pwm_min to pwm1 */
1416 data->pwm1.pwm = PWM_TO_REG((data->pwm1.pwm & 0x0f) |
1417 PWM_MIN_TO_REG(data->pwm1.auto_pwm_min));
1418 adm1026_write_value(client, ADM1026_REG_PWM,
1420 } else if (!((old_enable == 1) && (val == 1))) {
1421 /* set pwm to safe value */
1422 data->pwm1.pwm = 255;
1423 adm1026_write_value(client, ADM1026_REG_PWM,
1426 up(&data->update_lock);
1431 /* enable PWM fan control */
1432 static DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm_reg, set_pwm_reg);
1433 static DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, show_pwm_reg, set_pwm_reg);
1434 static DEVICE_ATTR(pwm3, S_IRUGO | S_IWUSR, show_pwm_reg, set_pwm_reg);
1435 static DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, show_pwm_enable,
1437 static DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR, show_pwm_enable,
1439 static DEVICE_ATTR(pwm3_enable, S_IRUGO | S_IWUSR, show_pwm_enable,
1441 static DEVICE_ATTR(temp1_auto_point1_pwm, S_IRUGO | S_IWUSR,
1442 show_auto_pwm_min, set_auto_pwm_min);
1443 static DEVICE_ATTR(temp2_auto_point1_pwm, S_IRUGO | S_IWUSR,
1444 show_auto_pwm_min, set_auto_pwm_min);
1445 static DEVICE_ATTR(temp3_auto_point1_pwm, S_IRUGO | S_IWUSR,
1446 show_auto_pwm_min, set_auto_pwm_min);
1448 static DEVICE_ATTR(temp1_auto_point2_pwm, S_IRUGO, show_auto_pwm_max, NULL);
1449 static DEVICE_ATTR(temp2_auto_point2_pwm, S_IRUGO, show_auto_pwm_max, NULL);
1450 static DEVICE_ATTR(temp3_auto_point2_pwm, S_IRUGO, show_auto_pwm_max, NULL);
1452 static int adm1026_detect(struct i2c_adapter *adapter, int address,
1455 int company, verstep;
1456 struct i2c_client *new_client;
1457 struct adm1026_data *data;
1459 const char *type_name = "";
1461 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
1462 /* We need to be able to do byte I/O */
1466 /* OK. For now, we presume we have a valid client. We now create the
1467 client structure, even though we cannot fill it completely yet.
1468 But it allows us to access adm1026_{read,write}_value. */
1470 if (!(data = kzalloc(sizeof(struct adm1026_data), GFP_KERNEL))) {
1475 new_client = &data->client;
1476 i2c_set_clientdata(new_client, data);
1477 new_client->addr = address;
1478 new_client->adapter = adapter;
1479 new_client->driver = &adm1026_driver;
1480 new_client->flags = 0;
1482 /* Now, we do the remaining detection. */
1484 company = adm1026_read_value(new_client, ADM1026_REG_COMPANY);
1485 verstep = adm1026_read_value(new_client, ADM1026_REG_VERSTEP);
1487 dev_dbg(&new_client->dev, "Detecting device at %d,0x%02x with"
1488 " COMPANY: 0x%02x and VERSTEP: 0x%02x\n",
1489 i2c_adapter_id(new_client->adapter), new_client->addr,
1492 /* If auto-detecting, Determine the chip type. */
1494 dev_dbg(&new_client->dev, "Autodetecting device at %d,0x%02x "
1495 "...\n", i2c_adapter_id(adapter), address);
1496 if (company == ADM1026_COMPANY_ANALOG_DEV
1497 && verstep == ADM1026_VERSTEP_ADM1026) {
1499 } else if (company == ADM1026_COMPANY_ANALOG_DEV
1500 && (verstep & 0xf0) == ADM1026_VERSTEP_GENERIC) {
1501 dev_err(&adapter->dev, ": Unrecognized stepping "
1502 "0x%02x. Defaulting to ADM1026.\n", verstep);
1504 } else if ((verstep & 0xf0) == ADM1026_VERSTEP_GENERIC) {
1505 dev_err(&adapter->dev, ": Found version/stepping "
1506 "0x%02x. Assuming generic ADM1026.\n",
1510 dev_dbg(&new_client->dev, ": Autodetection "
1512 /* Not an ADM1026 ... */
1513 if (kind == 0) { /* User used force=x,y */
1514 dev_err(&adapter->dev, "Generic ADM1026 not "
1515 "found at %d,0x%02x. Try "
1517 i2c_adapter_id(adapter), address);
1524 /* Fill in the chip specific driver values */
1527 type_name = "adm1026";
1530 type_name = "adm1026";
1533 dev_err(&adapter->dev, ": Internal error, invalid "
1534 "kind (%d)!", kind);
1538 strlcpy(new_client->name, type_name, I2C_NAME_SIZE);
1540 /* Fill in the remaining client fields */
1543 init_MUTEX(&data->update_lock);
1545 /* Tell the I2C layer a new client has arrived */
1546 if ((err = i2c_attach_client(new_client)))
1549 /* Set the VRM version */
1550 data->vrm = vid_which_vrm();
1552 /* Initialize the ADM1026 chip */
1553 adm1026_init_client(new_client);
1555 /* Register sysfs hooks */
1556 data->class_dev = hwmon_device_register(&new_client->dev);
1557 if (IS_ERR(data->class_dev)) {
1558 err = PTR_ERR(data->class_dev);
1562 device_create_file(&new_client->dev, &sensor_dev_attr_in0_input.dev_attr);
1563 device_create_file(&new_client->dev, &sensor_dev_attr_in0_max.dev_attr);
1564 device_create_file(&new_client->dev, &sensor_dev_attr_in0_min.dev_attr);
1565 device_create_file(&new_client->dev, &sensor_dev_attr_in1_input.dev_attr);
1566 device_create_file(&new_client->dev, &sensor_dev_attr_in1_max.dev_attr);
1567 device_create_file(&new_client->dev, &sensor_dev_attr_in1_min.dev_attr);
1568 device_create_file(&new_client->dev, &sensor_dev_attr_in2_input.dev_attr);
1569 device_create_file(&new_client->dev, &sensor_dev_attr_in2_max.dev_attr);
1570 device_create_file(&new_client->dev, &sensor_dev_attr_in2_min.dev_attr);
1571 device_create_file(&new_client->dev, &sensor_dev_attr_in3_input.dev_attr);
1572 device_create_file(&new_client->dev, &sensor_dev_attr_in3_max.dev_attr);
1573 device_create_file(&new_client->dev, &sensor_dev_attr_in3_min.dev_attr);
1574 device_create_file(&new_client->dev, &sensor_dev_attr_in4_input.dev_attr);
1575 device_create_file(&new_client->dev, &sensor_dev_attr_in4_max.dev_attr);
1576 device_create_file(&new_client->dev, &sensor_dev_attr_in4_min.dev_attr);
1577 device_create_file(&new_client->dev, &sensor_dev_attr_in5_input.dev_attr);
1578 device_create_file(&new_client->dev, &sensor_dev_attr_in5_max.dev_attr);
1579 device_create_file(&new_client->dev, &sensor_dev_attr_in5_min.dev_attr);
1580 device_create_file(&new_client->dev, &sensor_dev_attr_in6_input.dev_attr);
1581 device_create_file(&new_client->dev, &sensor_dev_attr_in6_max.dev_attr);
1582 device_create_file(&new_client->dev, &sensor_dev_attr_in6_min.dev_attr);
1583 device_create_file(&new_client->dev, &sensor_dev_attr_in7_input.dev_attr);
1584 device_create_file(&new_client->dev, &sensor_dev_attr_in7_max.dev_attr);
1585 device_create_file(&new_client->dev, &sensor_dev_attr_in7_min.dev_attr);
1586 device_create_file(&new_client->dev, &sensor_dev_attr_in8_input.dev_attr);
1587 device_create_file(&new_client->dev, &sensor_dev_attr_in8_max.dev_attr);
1588 device_create_file(&new_client->dev, &sensor_dev_attr_in8_min.dev_attr);
1589 device_create_file(&new_client->dev, &sensor_dev_attr_in9_input.dev_attr);
1590 device_create_file(&new_client->dev, &sensor_dev_attr_in9_max.dev_attr);
1591 device_create_file(&new_client->dev, &sensor_dev_attr_in9_min.dev_attr);
1592 device_create_file(&new_client->dev, &sensor_dev_attr_in10_input.dev_attr);
1593 device_create_file(&new_client->dev, &sensor_dev_attr_in10_max.dev_attr);
1594 device_create_file(&new_client->dev, &sensor_dev_attr_in10_min.dev_attr);
1595 device_create_file(&new_client->dev, &sensor_dev_attr_in11_input.dev_attr);
1596 device_create_file(&new_client->dev, &sensor_dev_attr_in11_max.dev_attr);
1597 device_create_file(&new_client->dev, &sensor_dev_attr_in11_min.dev_attr);
1598 device_create_file(&new_client->dev, &sensor_dev_attr_in12_input.dev_attr);
1599 device_create_file(&new_client->dev, &sensor_dev_attr_in12_max.dev_attr);
1600 device_create_file(&new_client->dev, &sensor_dev_attr_in12_min.dev_attr);
1601 device_create_file(&new_client->dev, &sensor_dev_attr_in13_input.dev_attr);
1602 device_create_file(&new_client->dev, &sensor_dev_attr_in13_max.dev_attr);
1603 device_create_file(&new_client->dev, &sensor_dev_attr_in13_min.dev_attr);
1604 device_create_file(&new_client->dev, &sensor_dev_attr_in14_input.dev_attr);
1605 device_create_file(&new_client->dev, &sensor_dev_attr_in14_max.dev_attr);
1606 device_create_file(&new_client->dev, &sensor_dev_attr_in14_min.dev_attr);
1607 device_create_file(&new_client->dev, &sensor_dev_attr_in15_input.dev_attr);
1608 device_create_file(&new_client->dev, &sensor_dev_attr_in15_max.dev_attr);
1609 device_create_file(&new_client->dev, &sensor_dev_attr_in15_min.dev_attr);
1610 device_create_file(&new_client->dev, &sensor_dev_attr_in16_input.dev_attr);
1611 device_create_file(&new_client->dev, &sensor_dev_attr_in16_max.dev_attr);
1612 device_create_file(&new_client->dev, &sensor_dev_attr_in16_min.dev_attr);
1613 device_create_file(&new_client->dev, &sensor_dev_attr_fan1_input.dev_attr);
1614 device_create_file(&new_client->dev, &sensor_dev_attr_fan1_div.dev_attr);
1615 device_create_file(&new_client->dev, &sensor_dev_attr_fan1_min.dev_attr);
1616 device_create_file(&new_client->dev, &sensor_dev_attr_fan2_input.dev_attr);
1617 device_create_file(&new_client->dev, &sensor_dev_attr_fan2_div.dev_attr);
1618 device_create_file(&new_client->dev, &sensor_dev_attr_fan2_min.dev_attr);
1619 device_create_file(&new_client->dev, &sensor_dev_attr_fan3_input.dev_attr);
1620 device_create_file(&new_client->dev, &sensor_dev_attr_fan3_div.dev_attr);
1621 device_create_file(&new_client->dev, &sensor_dev_attr_fan3_min.dev_attr);
1622 device_create_file(&new_client->dev, &sensor_dev_attr_fan4_input.dev_attr);
1623 device_create_file(&new_client->dev, &sensor_dev_attr_fan4_div.dev_attr);
1624 device_create_file(&new_client->dev, &sensor_dev_attr_fan4_min.dev_attr);
1625 device_create_file(&new_client->dev, &sensor_dev_attr_fan5_input.dev_attr);
1626 device_create_file(&new_client->dev, &sensor_dev_attr_fan5_div.dev_attr);
1627 device_create_file(&new_client->dev, &sensor_dev_attr_fan5_min.dev_attr);
1628 device_create_file(&new_client->dev, &sensor_dev_attr_fan6_input.dev_attr);
1629 device_create_file(&new_client->dev, &sensor_dev_attr_fan6_div.dev_attr);
1630 device_create_file(&new_client->dev, &sensor_dev_attr_fan6_min.dev_attr);
1631 device_create_file(&new_client->dev, &sensor_dev_attr_fan7_input.dev_attr);
1632 device_create_file(&new_client->dev, &sensor_dev_attr_fan7_div.dev_attr);
1633 device_create_file(&new_client->dev, &sensor_dev_attr_fan7_min.dev_attr);
1634 device_create_file(&new_client->dev, &sensor_dev_attr_fan8_input.dev_attr);
1635 device_create_file(&new_client->dev, &sensor_dev_attr_fan8_div.dev_attr);
1636 device_create_file(&new_client->dev, &sensor_dev_attr_fan8_min.dev_attr);
1637 device_create_file(&new_client->dev, &sensor_dev_attr_temp1_input.dev_attr);
1638 device_create_file(&new_client->dev, &sensor_dev_attr_temp1_max.dev_attr);
1639 device_create_file(&new_client->dev, &sensor_dev_attr_temp1_min.dev_attr);
1640 device_create_file(&new_client->dev, &sensor_dev_attr_temp2_input.dev_attr);
1641 device_create_file(&new_client->dev, &sensor_dev_attr_temp2_max.dev_attr);
1642 device_create_file(&new_client->dev, &sensor_dev_attr_temp2_min.dev_attr);
1643 device_create_file(&new_client->dev, &sensor_dev_attr_temp3_input.dev_attr);
1644 device_create_file(&new_client->dev, &sensor_dev_attr_temp3_max.dev_attr);
1645 device_create_file(&new_client->dev, &sensor_dev_attr_temp3_min.dev_attr);
1646 device_create_file(&new_client->dev, &sensor_dev_attr_temp1_offset.dev_attr);
1647 device_create_file(&new_client->dev, &sensor_dev_attr_temp2_offset.dev_attr);
1648 device_create_file(&new_client->dev, &sensor_dev_attr_temp3_offset.dev_attr);
1649 device_create_file(&new_client->dev,
1650 &sensor_dev_attr_temp1_auto_point1_temp.dev_attr);
1651 device_create_file(&new_client->dev,
1652 &sensor_dev_attr_temp2_auto_point1_temp.dev_attr);
1653 device_create_file(&new_client->dev,
1654 &sensor_dev_attr_temp3_auto_point1_temp.dev_attr);
1655 device_create_file(&new_client->dev,
1656 &sensor_dev_attr_temp1_auto_point1_temp_hyst.dev_attr);
1657 device_create_file(&new_client->dev,
1658 &sensor_dev_attr_temp2_auto_point1_temp_hyst.dev_attr);
1659 device_create_file(&new_client->dev,
1660 &sensor_dev_attr_temp3_auto_point1_temp_hyst.dev_attr);
1661 device_create_file(&new_client->dev,
1662 &sensor_dev_attr_temp1_auto_point2_temp.dev_attr);
1663 device_create_file(&new_client->dev,
1664 &sensor_dev_attr_temp2_auto_point2_temp.dev_attr);
1665 device_create_file(&new_client->dev,
1666 &sensor_dev_attr_temp3_auto_point2_temp.dev_attr);
1667 device_create_file(&new_client->dev, &sensor_dev_attr_temp1_crit.dev_attr);
1668 device_create_file(&new_client->dev, &sensor_dev_attr_temp2_crit.dev_attr);
1669 device_create_file(&new_client->dev, &sensor_dev_attr_temp3_crit.dev_attr);
1670 device_create_file(&new_client->dev, &dev_attr_temp1_crit_enable);
1671 device_create_file(&new_client->dev, &dev_attr_temp2_crit_enable);
1672 device_create_file(&new_client->dev, &dev_attr_temp3_crit_enable);
1673 device_create_file(&new_client->dev, &dev_attr_cpu0_vid);
1674 device_create_file(&new_client->dev, &dev_attr_vrm);
1675 device_create_file(&new_client->dev, &dev_attr_alarms);
1676 device_create_file(&new_client->dev, &dev_attr_alarm_mask);
1677 device_create_file(&new_client->dev, &dev_attr_gpio);
1678 device_create_file(&new_client->dev, &dev_attr_gpio_mask);
1679 device_create_file(&new_client->dev, &dev_attr_pwm1);
1680 device_create_file(&new_client->dev, &dev_attr_pwm2);
1681 device_create_file(&new_client->dev, &dev_attr_pwm3);
1682 device_create_file(&new_client->dev, &dev_attr_pwm1_enable);
1683 device_create_file(&new_client->dev, &dev_attr_pwm2_enable);
1684 device_create_file(&new_client->dev, &dev_attr_pwm3_enable);
1685 device_create_file(&new_client->dev, &dev_attr_temp1_auto_point1_pwm);
1686 device_create_file(&new_client->dev, &dev_attr_temp2_auto_point1_pwm);
1687 device_create_file(&new_client->dev, &dev_attr_temp3_auto_point1_pwm);
1688 device_create_file(&new_client->dev, &dev_attr_temp1_auto_point2_pwm);
1689 device_create_file(&new_client->dev, &dev_attr_temp2_auto_point2_pwm);
1690 device_create_file(&new_client->dev, &dev_attr_temp3_auto_point2_pwm);
1691 device_create_file(&new_client->dev, &dev_attr_analog_out);
1694 /* Error out and cleanup code */
1696 i2c_detach_client(new_client);
1702 static int __init sm_adm1026_init(void)
1704 return i2c_add_driver(&adm1026_driver);
1707 static void __exit sm_adm1026_exit(void)
1709 i2c_del_driver(&adm1026_driver);
1712 MODULE_LICENSE("GPL");
1713 MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, "
1714 "Justin Thiessen <jthiessen@penguincomputing.com>");
1715 MODULE_DESCRIPTION("ADM1026 driver");
1717 module_init(sm_adm1026_init);
1718 module_exit(sm_adm1026_exit);