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/config.h>
27 #include <linux/module.h>
28 #include <linux/init.h>
29 #include <linux/slab.h>
30 #include <linux/i2c.h>
31 #include <linux/i2c-sensor.h>
32 #include <linux/i2c-vid.h>
34 /* Addresses to scan */
35 static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
36 static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
38 /* Insmod parameters */
39 SENSORS_INSMOD_1(adm1026);
41 static int gpio_input[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
42 -1, -1, -1, -1, -1, -1, -1, -1 };
43 static int gpio_output[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
44 -1, -1, -1, -1, -1, -1, -1, -1 };
45 static int gpio_inverted[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
46 -1, -1, -1, -1, -1, -1, -1, -1 };
47 static int gpio_normal[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
48 -1, -1, -1, -1, -1, -1, -1, -1 };
49 static int gpio_fan[8] = { -1, -1, -1, -1, -1, -1, -1, -1 };
50 module_param_array(gpio_input,int,NULL,0);
51 MODULE_PARM_DESC(gpio_input,"List of GPIO pins (0-16) to program as inputs");
52 module_param_array(gpio_output,int,NULL,0);
53 MODULE_PARM_DESC(gpio_output,"List of GPIO pins (0-16) to program as "
55 module_param_array(gpio_inverted,int,NULL,0);
56 MODULE_PARM_DESC(gpio_inverted,"List of GPIO pins (0-16) to program as "
58 module_param_array(gpio_normal,int,NULL,0);
59 MODULE_PARM_DESC(gpio_normal,"List of GPIO pins (0-16) to program as "
60 "normal/non-inverted");
61 module_param_array(gpio_fan,int,NULL,0);
62 MODULE_PARM_DESC(gpio_fan,"List of GPIO pins (0-7) to program as fan tachs");
64 /* Many ADM1026 constants specified below */
66 /* The ADM1026 registers */
67 #define ADM1026_REG_CONFIG1 0x00
68 #define CFG1_MONITOR 0x01
69 #define CFG1_INT_ENABLE 0x02
70 #define CFG1_INT_CLEAR 0x04
71 #define CFG1_AIN8_9 0x08
72 #define CFG1_THERM_HOT 0x10
73 #define CFG1_DAC_AFC 0x20
74 #define CFG1_PWM_AFC 0x40
75 #define CFG1_RESET 0x80
76 #define ADM1026_REG_CONFIG2 0x01
77 /* CONFIG2 controls FAN0/GPIO0 through FAN7/GPIO7 */
78 #define ADM1026_REG_CONFIG3 0x07
79 #define CFG3_GPIO16_ENABLE 0x01
80 #define CFG3_CI_CLEAR 0x02
81 #define CFG3_VREF_250 0x04
82 #define CFG3_GPIO16_DIR 0x40
83 #define CFG3_GPIO16_POL 0x80
84 #define ADM1026_REG_E2CONFIG 0x13
85 #define E2CFG_READ 0x01
86 #define E2CFG_WRITE 0x02
87 #define E2CFG_ERASE 0x04
88 #define E2CFG_ROM 0x08
89 #define E2CFG_CLK_EXT 0x80
91 /* There are 10 general analog inputs and 7 dedicated inputs
98 * 14 = Vccp (CPU core voltage)
102 static u16 ADM1026_REG_IN[] = {
103 0x30, 0x31, 0x32, 0x33, 0x34, 0x35,
104 0x36, 0x37, 0x27, 0x29, 0x26, 0x2a,
105 0x2b, 0x2c, 0x2d, 0x2e, 0x2f
107 static u16 ADM1026_REG_IN_MIN[] = {
108 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d,
109 0x5e, 0x5f, 0x6d, 0x49, 0x6b, 0x4a,
110 0x4b, 0x4c, 0x4d, 0x4e, 0x4f
112 static u16 ADM1026_REG_IN_MAX[] = {
113 0x50, 0x51, 0x52, 0x53, 0x54, 0x55,
114 0x56, 0x57, 0x6c, 0x41, 0x6a, 0x42,
115 0x43, 0x44, 0x45, 0x46, 0x47
123 static u16 ADM1026_REG_TEMP[] = { 0x1f, 0x28, 0x29 };
124 static u16 ADM1026_REG_TEMP_MIN[] = { 0x69, 0x48, 0x49 };
125 static u16 ADM1026_REG_TEMP_MAX[] = { 0x68, 0x40, 0x41 };
126 static u16 ADM1026_REG_TEMP_TMIN[] = { 0x10, 0x11, 0x12 };
127 static u16 ADM1026_REG_TEMP_THERM[] = { 0x0d, 0x0e, 0x0f };
128 static u16 ADM1026_REG_TEMP_OFFSET[] = { 0x1e, 0x6e, 0x6f };
130 #define ADM1026_REG_FAN(nr) (0x38 + (nr))
131 #define ADM1026_REG_FAN_MIN(nr) (0x60 + (nr))
132 #define ADM1026_REG_FAN_DIV_0_3 0x02
133 #define ADM1026_REG_FAN_DIV_4_7 0x03
135 #define ADM1026_REG_DAC 0x04
136 #define ADM1026_REG_PWM 0x05
138 #define ADM1026_REG_GPIO_CFG_0_3 0x08
139 #define ADM1026_REG_GPIO_CFG_4_7 0x09
140 #define ADM1026_REG_GPIO_CFG_8_11 0x0a
141 #define ADM1026_REG_GPIO_CFG_12_15 0x0b
142 /* CFG_16 in REG_CFG3 */
143 #define ADM1026_REG_GPIO_STATUS_0_7 0x24
144 #define ADM1026_REG_GPIO_STATUS_8_15 0x25
145 /* STATUS_16 in REG_STATUS4 */
146 #define ADM1026_REG_GPIO_MASK_0_7 0x1c
147 #define ADM1026_REG_GPIO_MASK_8_15 0x1d
148 /* MASK_16 in REG_MASK4 */
150 #define ADM1026_REG_COMPANY 0x16
151 #define ADM1026_REG_VERSTEP 0x17
152 /* These are the recognized values for the above regs */
153 #define ADM1026_COMPANY_ANALOG_DEV 0x41
154 #define ADM1026_VERSTEP_GENERIC 0x40
155 #define ADM1026_VERSTEP_ADM1026 0x44
157 #define ADM1026_REG_MASK1 0x18
158 #define ADM1026_REG_MASK2 0x19
159 #define ADM1026_REG_MASK3 0x1a
160 #define ADM1026_REG_MASK4 0x1b
162 #define ADM1026_REG_STATUS1 0x20
163 #define ADM1026_REG_STATUS2 0x21
164 #define ADM1026_REG_STATUS3 0x22
165 #define ADM1026_REG_STATUS4 0x23
167 #define ADM1026_FAN_ACTIVATION_TEMP_HYST -6
168 #define ADM1026_FAN_CONTROL_TEMP_RANGE 20
169 #define ADM1026_PWM_MAX 255
171 /* Conversions. Rounding and limit checking is only done on the TO_REG
172 * variants. Note that you should be a bit careful with which arguments
173 * these macros are called: arguments may be evaluated more than once.
176 /* IN are scaled acording to built-in resistors. These are the
177 * voltages corresponding to 3/4 of full scale (192 or 0xc0)
178 * NOTE: The -12V input needs an additional factor to account
179 * for the Vref pullup resistor.
180 * NEG12_OFFSET = SCALE * Vref / V-192 - Vref
181 * = 13875 * 2.50 / 1.875 - 2500
184 * The values in this table are based on Table II, page 15 of the
187 static int adm1026_scaling[] = { /* .001 Volts */
188 2250, 2250, 2250, 2250, 2250, 2250,
189 1875, 1875, 1875, 1875, 3000, 3330,
190 3330, 4995, 2250, 12000, 13875
192 #define NEG12_OFFSET 16000
193 #define SCALE(val,from,to) (((val)*(to) + ((from)/2))/(from))
194 #define INS_TO_REG(n,val) (SENSORS_LIMIT(SCALE(val,adm1026_scaling[n],192),\
196 #define INS_FROM_REG(n,val) (SCALE(val,192,adm1026_scaling[n]))
198 /* FAN speed is measured using 22.5kHz clock and counts for 2 pulses
199 * and we assume a 2 pulse-per-rev fan tach signal
200 * 22500 kHz * 60 (sec/min) * 2 (pulse) / 2 (pulse/rev) == 1350000
202 #define FAN_TO_REG(val,div) ((val)<=0 ? 0xff : SENSORS_LIMIT(1350000/((val)*\
204 #define FAN_FROM_REG(val,div) ((val)==0?-1:(val)==0xff ? 0 : 1350000/((val)*\
206 #define DIV_FROM_REG(val) (1<<(val))
207 #define DIV_TO_REG(val) ((val)>=8 ? 3 : (val)>=4 ? 2 : (val)>=2 ? 1 : 0)
209 /* Temperature is reported in 1 degC increments */
210 #define TEMP_TO_REG(val) (SENSORS_LIMIT(((val)+((val)<0 ? -500 : 500))/1000,\
212 #define TEMP_FROM_REG(val) ((val) * 1000)
213 #define OFFSET_TO_REG(val) (SENSORS_LIMIT(((val)+((val)<0 ? -500 : 500))/1000,\
215 #define OFFSET_FROM_REG(val) ((val) * 1000)
217 #define PWM_TO_REG(val) (SENSORS_LIMIT(val,0,255))
218 #define PWM_FROM_REG(val) (val)
220 #define PWM_MIN_TO_REG(val) ((val) & 0xf0)
221 #define PWM_MIN_FROM_REG(val) (((val) & 0xf0) + ((val) >> 4))
223 /* Analog output is a voltage, and scaled to millivolts. The datasheet
224 * indicates that the DAC could be used to drive the fans, but in our
225 * example board (Arima HDAMA) it isn't connected to the fans at all.
227 #define DAC_TO_REG(val) (SENSORS_LIMIT(((((val)*255)+500)/2500),0,255))
228 #define DAC_FROM_REG(val) (((val)*2500)/255)
230 /* Typically used with systems using a v9.1 VRM spec ? */
231 #define ADM1026_INIT_VRM 91
233 /* Chip sampling rates
235 * Some sensors are not updated more frequently than once per second
236 * so it doesn't make sense to read them more often than that.
237 * We cache the results and return the saved data if the driver
238 * is called again before a second has elapsed.
240 * Also, there is significant configuration data for this chip
241 * So, we keep the config data up to date in the cache
242 * when it is written and only sample it once every 5 *minutes*
244 #define ADM1026_DATA_INTERVAL (1 * HZ)
245 #define ADM1026_CONFIG_INTERVAL (5 * 60 * HZ)
247 /* We allow for multiple chips in a single system.
249 * For each registered ADM1026, we need to keep state information
250 * at client->data. The adm1026_data structure is dynamically
251 * allocated, when a new client structure is allocated. */
259 struct adm1026_data {
260 struct i2c_client client;
261 struct semaphore lock;
264 struct semaphore update_lock;
265 int valid; /* !=0 if following fields are valid */
266 unsigned long last_reading; /* In jiffies */
267 unsigned long last_config; /* In jiffies */
269 u8 in[17]; /* Register value */
270 u8 in_max[17]; /* Register value */
271 u8 in_min[17]; /* Register value */
272 s8 temp[3]; /* Register value */
273 s8 temp_min[3]; /* Register value */
274 s8 temp_max[3]; /* Register value */
275 s8 temp_tmin[3]; /* Register value */
276 s8 temp_crit[3]; /* Register value */
277 s8 temp_offset[3]; /* Register value */
278 u8 fan[8]; /* Register value */
279 u8 fan_min[8]; /* Register value */
280 u8 fan_div[8]; /* Decoded value */
281 struct pwm_data pwm1; /* Pwm control values */
282 int vid; /* Decoded value */
283 u8 vrm; /* VRM version */
284 u8 analog_out; /* Register value (DAC) */
285 long alarms; /* Register encoding, combined */
286 long alarm_mask; /* Register encoding, combined */
287 long gpio; /* Register encoding, combined */
288 long gpio_mask; /* Register encoding, combined */
289 u8 gpio_config[17]; /* Decoded value */
290 u8 config1; /* Register value */
291 u8 config2; /* Register value */
292 u8 config3; /* Register value */
295 static int adm1026_attach_adapter(struct i2c_adapter *adapter);
296 static int adm1026_detect(struct i2c_adapter *adapter, int address,
298 static int adm1026_detach_client(struct i2c_client *client);
299 static int adm1026_read_value(struct i2c_client *client, u8 register);
300 static int adm1026_write_value(struct i2c_client *client, u8 register,
302 static void adm1026_print_gpio(struct i2c_client *client);
303 static void adm1026_fixup_gpio(struct i2c_client *client);
304 static struct adm1026_data *adm1026_update_device(struct device *dev);
305 static void adm1026_init_client(struct i2c_client *client);
308 static struct i2c_driver adm1026_driver = {
309 .owner = THIS_MODULE,
311 .flags = I2C_DF_NOTIFY,
312 .attach_adapter = adm1026_attach_adapter,
313 .detach_client = adm1026_detach_client,
316 static int adm1026_id;
318 int adm1026_attach_adapter(struct i2c_adapter *adapter)
320 if (!(adapter->class & I2C_CLASS_HWMON)) {
323 return i2c_detect(adapter, &addr_data, adm1026_detect);
326 int adm1026_detach_client(struct i2c_client *client)
328 i2c_detach_client(client);
333 int adm1026_read_value(struct i2c_client *client, u8 reg)
338 /* "RAM" locations */
339 res = i2c_smbus_read_byte_data(client, reg) & 0xff;
341 /* EEPROM, do nothing */
347 int adm1026_write_value(struct i2c_client *client, u8 reg, int value)
352 /* "RAM" locations */
353 res = i2c_smbus_write_byte_data(client, reg, value);
355 /* EEPROM, do nothing */
361 void adm1026_init_client(struct i2c_client *client)
364 struct adm1026_data *data = i2c_get_clientdata(client);
366 dev_dbg(&client->dev,"(%d): Initializing device\n", client->id);
367 /* Read chip config */
368 data->config1 = adm1026_read_value(client, ADM1026_REG_CONFIG1);
369 data->config2 = adm1026_read_value(client, ADM1026_REG_CONFIG2);
370 data->config3 = adm1026_read_value(client, ADM1026_REG_CONFIG3);
372 /* Inform user of chip config */
373 dev_dbg(&client->dev, "(%d): ADM1026_REG_CONFIG1 is: 0x%02x\n",
374 client->id, data->config1);
375 if ((data->config1 & CFG1_MONITOR) == 0) {
376 dev_dbg(&client->dev, "(%d): Monitoring not currently "
377 "enabled.\n", client->id);
379 if (data->config1 & CFG1_INT_ENABLE) {
380 dev_dbg(&client->dev, "(%d): SMBALERT interrupts are "
381 "enabled.\n", client->id);
383 if (data->config1 & CFG1_AIN8_9) {
384 dev_dbg(&client->dev, "(%d): in8 and in9 enabled. "
385 "temp3 disabled.\n", client->id);
387 dev_dbg(&client->dev, "(%d): temp3 enabled. in8 and "
388 "in9 disabled.\n", client->id);
390 if (data->config1 & CFG1_THERM_HOT) {
391 dev_dbg(&client->dev, "(%d): Automatic THERM, PWM, "
392 "and temp limits enabled.\n", client->id);
395 value = data->config3;
396 if (data->config3 & CFG3_GPIO16_ENABLE) {
397 dev_dbg(&client->dev, "(%d): GPIO16 enabled. THERM"
398 "pin disabled.\n", client->id);
400 dev_dbg(&client->dev, "(%d): THERM pin enabled. "
401 "GPIO16 disabled.\n", client->id);
403 if (data->config3 & CFG3_VREF_250) {
404 dev_dbg(&client->dev, "(%d): Vref is 2.50 Volts.\n",
407 dev_dbg(&client->dev, "(%d): Vref is 1.82 Volts.\n",
410 /* Read and pick apart the existing GPIO configuration */
412 for (i = 0;i <= 15;++i) {
413 if ((i & 0x03) == 0) {
414 value = adm1026_read_value(client,
415 ADM1026_REG_GPIO_CFG_0_3 + i/4);
417 data->gpio_config[i] = value & 0x03;
420 data->gpio_config[16] = (data->config3 >> 6) & 0x03;
422 /* ... and then print it */
423 adm1026_print_gpio(client);
425 /* If the user asks us to reprogram the GPIO config, then
426 * do it now. But only if this is the first ADM1026.
429 && (gpio_input[0] != -1 || gpio_output[0] != -1
430 || gpio_inverted[0] != -1 || gpio_normal[0] != -1
431 || gpio_fan[0] != -1)) {
432 adm1026_fixup_gpio(client);
435 /* WE INTENTIONALLY make no changes to the limits,
436 * offsets, pwms, fans and zones. If they were
437 * configured, we don't want to mess with them.
438 * If they weren't, the default is 100% PWM, no
439 * control and will suffice until 'sensors -s'
440 * can be run by the user. We DO set the default
441 * value for pwm1.auto_pwm_min to its maximum
442 * so that enabling automatic pwm fan control
443 * without first setting a value for pwm1.auto_pwm_min
444 * will not result in potentially dangerous fan speed decrease.
446 data->pwm1.auto_pwm_min=255;
447 /* Start monitoring */
448 value = adm1026_read_value(client, ADM1026_REG_CONFIG1);
449 /* Set MONITOR, clear interrupt acknowledge and s/w reset */
450 value = (value | CFG1_MONITOR) & (~CFG1_INT_CLEAR & ~CFG1_RESET);
451 dev_dbg(&client->dev, "(%d): Setting CONFIG to: 0x%02x\n",
453 data->config1 = value;
454 adm1026_write_value(client, ADM1026_REG_CONFIG1, value);
457 void adm1026_print_gpio(struct i2c_client *client)
459 struct adm1026_data *data = i2c_get_clientdata(client);
462 dev_dbg(&client->dev, "(%d): GPIO config is:",
464 for (i = 0;i <= 7;++i) {
465 if (data->config2 & (1 << i)) {
466 dev_dbg(&client->dev, "\t(%d): %sGP%s%d\n", client->id,
467 data->gpio_config[i] & 0x02 ? "" : "!",
468 data->gpio_config[i] & 0x01 ? "OUT" : "IN",
471 dev_dbg(&client->dev, "\t(%d): FAN%d\n",
475 for (i = 8;i <= 15;++i) {
476 dev_dbg(&client->dev, "\t(%d): %sGP%s%d\n", client->id,
477 data->gpio_config[i] & 0x02 ? "" : "!",
478 data->gpio_config[i] & 0x01 ? "OUT" : "IN",
481 if (data->config3 & CFG3_GPIO16_ENABLE) {
482 dev_dbg(&client->dev, "\t(%d): %sGP%s16\n", client->id,
483 data->gpio_config[16] & 0x02 ? "" : "!",
484 data->gpio_config[16] & 0x01 ? "OUT" : "IN");
486 /* GPIO16 is THERM */
487 dev_dbg(&client->dev, "\t(%d): THERM\n", client->id);
491 void adm1026_fixup_gpio(struct i2c_client *client)
493 struct adm1026_data *data = i2c_get_clientdata(client);
497 /* Make the changes requested. */
498 /* We may need to unlock/stop monitoring or soft-reset the
499 * chip before we can make changes. This hasn't been
504 for (i = 0;i <= 16;++i) {
505 if (gpio_output[i] >= 0 && gpio_output[i] <= 16) {
506 data->gpio_config[gpio_output[i]] |= 0x01;
508 /* if GPIO0-7 is output, it isn't a FAN tach */
509 if (gpio_output[i] >= 0 && gpio_output[i] <= 7) {
510 data->config2 |= 1 << gpio_output[i];
514 /* Input overrides output */
515 for (i = 0;i <= 16;++i) {
516 if (gpio_input[i] >= 0 && gpio_input[i] <= 16) {
517 data->gpio_config[gpio_input[i]] &= ~ 0x01;
519 /* if GPIO0-7 is input, it isn't a FAN tach */
520 if (gpio_input[i] >= 0 && gpio_input[i] <= 7) {
521 data->config2 |= 1 << gpio_input[i];
526 for (i = 0;i <= 16;++i) {
527 if (gpio_inverted[i] >= 0 && gpio_inverted[i] <= 16) {
528 data->gpio_config[gpio_inverted[i]] &= ~ 0x02;
532 /* Normal overrides inverted */
533 for (i = 0;i <= 16;++i) {
534 if (gpio_normal[i] >= 0 && gpio_normal[i] <= 16) {
535 data->gpio_config[gpio_normal[i]] |= 0x02;
539 /* Fan overrides input and output */
540 for (i = 0;i <= 7;++i) {
541 if (gpio_fan[i] >= 0 && gpio_fan[i] <= 7) {
542 data->config2 &= ~(1 << gpio_fan[i]);
546 /* Write new configs to registers */
547 adm1026_write_value(client, ADM1026_REG_CONFIG2, data->config2);
548 data->config3 = (data->config3 & 0x3f)
549 | ((data->gpio_config[16] & 0x03) << 6);
550 adm1026_write_value(client, ADM1026_REG_CONFIG3, data->config3);
551 for (i = 15, value = 0;i >= 0;--i) {
553 value |= data->gpio_config[i] & 0x03;
554 if ((i & 0x03) == 0) {
555 adm1026_write_value(client,
556 ADM1026_REG_GPIO_CFG_0_3 + i/4,
562 /* Print the new config */
563 adm1026_print_gpio(client);
567 static struct adm1026_data *adm1026_update_device(struct device *dev)
569 struct i2c_client *client = to_i2c_client(dev);
570 struct adm1026_data *data = i2c_get_clientdata(client);
572 long value, alarms, gpio;
574 down(&data->update_lock);
576 || (jiffies - data->last_reading > ADM1026_DATA_INTERVAL)) {
577 /* Things that change quickly */
578 dev_dbg(&client->dev,"(%d): Reading sensor values\n",
580 for (i = 0;i <= 16;++i) {
582 adm1026_read_value(client, ADM1026_REG_IN[i]);
585 for (i = 0;i <= 7;++i) {
587 adm1026_read_value(client, ADM1026_REG_FAN(i));
590 for (i = 0;i <= 2;++i) {
591 /* NOTE: temp[] is s8 and we assume 2's complement
592 * "conversion" in the assignment */
594 adm1026_read_value(client, ADM1026_REG_TEMP[i]);
597 data->pwm1.pwm = adm1026_read_value(client,
599 data->analog_out = adm1026_read_value(client,
601 /* GPIO16 is MSbit of alarms, move it to gpio */
602 alarms = adm1026_read_value(client, ADM1026_REG_STATUS4);
603 gpio = alarms & 0x80 ? 0x0100 : 0; /* GPIO16 */
606 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS3);
608 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS2);
610 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS1);
611 data->alarms = alarms;
613 /* Read the GPIO values */
614 gpio |= adm1026_read_value(client,
615 ADM1026_REG_GPIO_STATUS_8_15);
617 gpio |= adm1026_read_value(client,
618 ADM1026_REG_GPIO_STATUS_0_7);
621 data->last_reading = jiffies;
622 }; /* last_reading */
624 if (!data->valid || (jiffies - data->last_config >
625 ADM1026_CONFIG_INTERVAL)) {
626 /* Things that don't change often */
627 dev_dbg(&client->dev, "(%d): Reading config values\n",
629 for (i = 0;i <= 16;++i) {
630 data->in_min[i] = adm1026_read_value(client,
631 ADM1026_REG_IN_MIN[i]);
632 data->in_max[i] = adm1026_read_value(client,
633 ADM1026_REG_IN_MAX[i]);
636 value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3)
637 | (adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7)
639 for (i = 0;i <= 7;++i) {
640 data->fan_min[i] = adm1026_read_value(client,
641 ADM1026_REG_FAN_MIN(i));
642 data->fan_div[i] = DIV_FROM_REG(value & 0x03);
646 for (i = 0; i <= 2; ++i) {
647 /* NOTE: temp_xxx[] are s8 and we assume 2's
648 * complement "conversion" in the assignment
650 data->temp_min[i] = adm1026_read_value(client,
651 ADM1026_REG_TEMP_MIN[i]);
652 data->temp_max[i] = adm1026_read_value(client,
653 ADM1026_REG_TEMP_MAX[i]);
654 data->temp_tmin[i] = adm1026_read_value(client,
655 ADM1026_REG_TEMP_TMIN[i]);
656 data->temp_crit[i] = adm1026_read_value(client,
657 ADM1026_REG_TEMP_THERM[i]);
658 data->temp_offset[i] = adm1026_read_value(client,
659 ADM1026_REG_TEMP_OFFSET[i]);
662 /* Read the STATUS/alarm masks */
663 alarms = adm1026_read_value(client, ADM1026_REG_MASK4);
664 gpio = alarms & 0x80 ? 0x0100 : 0; /* GPIO16 */
665 alarms = (alarms & 0x7f) << 8;
666 alarms |= adm1026_read_value(client, ADM1026_REG_MASK3);
668 alarms |= adm1026_read_value(client, ADM1026_REG_MASK2);
670 alarms |= adm1026_read_value(client, ADM1026_REG_MASK1);
671 data->alarm_mask = alarms;
673 /* Read the GPIO values */
674 gpio |= adm1026_read_value(client,
675 ADM1026_REG_GPIO_MASK_8_15);
677 gpio |= adm1026_read_value(client, ADM1026_REG_GPIO_MASK_0_7);
678 data->gpio_mask = gpio;
680 /* Read various values from CONFIG1 */
681 data->config1 = adm1026_read_value(client,
682 ADM1026_REG_CONFIG1);
683 if (data->config1 & CFG1_PWM_AFC) {
684 data->pwm1.enable = 2;
685 data->pwm1.auto_pwm_min =
686 PWM_MIN_FROM_REG(data->pwm1.pwm);
688 /* Read the GPIO config */
689 data->config2 = adm1026_read_value(client,
690 ADM1026_REG_CONFIG2);
691 data->config3 = adm1026_read_value(client,
692 ADM1026_REG_CONFIG3);
693 data->gpio_config[16] = (data->config3 >> 6) & 0x03;
696 for (i = 0;i <= 15;++i) {
697 if ((i & 0x03) == 0) {
698 value = adm1026_read_value(client,
699 ADM1026_REG_GPIO_CFG_0_3 + i/4);
701 data->gpio_config[i] = value & 0x03;
705 data->last_config = jiffies;
708 dev_dbg(&client->dev, "(%d): 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, char *buf, int nr)
718 struct adm1026_data *data = adm1026_update_device(dev);
719 return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in[nr]));
721 static ssize_t show_in_min(struct device *dev, char *buf, int nr)
723 struct adm1026_data *data = adm1026_update_device(dev);
724 return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_min[nr]));
726 static ssize_t set_in_min(struct device *dev, const char *buf,
727 size_t count, int nr)
729 struct i2c_client *client = to_i2c_client(dev);
730 struct adm1026_data *data = i2c_get_clientdata(client);
733 down(&data->update_lock);
734 val = simple_strtol(buf, NULL, 10);
735 data->in_min[nr] = INS_TO_REG(nr, val);
736 adm1026_write_value(client, ADM1026_REG_IN_MIN[nr], data->in_min[nr]);
737 up(&data->update_lock);
740 static ssize_t show_in_max(struct device *dev, char *buf, int nr)
742 struct adm1026_data *data = adm1026_update_device(dev);
743 return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_max[nr]));
745 static ssize_t set_in_max(struct device *dev, const char *buf,
746 size_t count, int nr)
748 struct i2c_client *client = to_i2c_client(dev);
749 struct adm1026_data *data = i2c_get_clientdata(client);
752 down(&data->update_lock);
753 val = simple_strtol(buf, NULL, 10);
754 data->in_max[nr] = INS_TO_REG(nr, val);
755 adm1026_write_value(client, ADM1026_REG_IN_MAX[nr], data->in_max[nr]);
756 up(&data->update_lock);
760 #define in_reg(offset) \
761 static ssize_t show_in##offset (struct device *dev, char *buf) \
763 return show_in(dev, buf, offset); \
765 static ssize_t show_in##offset##_min (struct device *dev, char *buf) \
767 return show_in_min(dev, buf, offset); \
769 static ssize_t set_in##offset##_min (struct device *dev, \
770 const char *buf, size_t count) \
772 return set_in_min(dev, buf, count, offset); \
774 static ssize_t show_in##offset##_max (struct device *dev, char *buf) \
776 return show_in_max(dev, buf, offset); \
778 static ssize_t set_in##offset##_max (struct device *dev, \
779 const char *buf, size_t count) \
781 return set_in_max(dev, buf, count, offset); \
783 static DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in##offset, NULL); \
784 static DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \
785 show_in##offset##_min, set_in##offset##_min); \
786 static DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \
787 show_in##offset##_max, set_in##offset##_max);
807 static ssize_t show_in16(struct device *dev, char *buf)
809 struct adm1026_data *data = adm1026_update_device(dev);
810 return sprintf(buf,"%d\n", INS_FROM_REG(16, data->in[16]) -
813 static ssize_t show_in16_min(struct device *dev, char *buf)
815 struct adm1026_data *data = adm1026_update_device(dev);
816 return sprintf(buf,"%d\n", INS_FROM_REG(16, data->in_min[16])
819 static ssize_t set_in16_min(struct device *dev, const char *buf, size_t count)
821 struct i2c_client *client = to_i2c_client(dev);
822 struct adm1026_data *data = i2c_get_clientdata(client);
825 down(&data->update_lock);
826 val = simple_strtol(buf, NULL, 10);
827 data->in_min[16] = INS_TO_REG(16, val + NEG12_OFFSET);
828 adm1026_write_value(client, ADM1026_REG_IN_MIN[16], data->in_min[16]);
829 up(&data->update_lock);
832 static ssize_t show_in16_max(struct device *dev, char *buf)
834 struct adm1026_data *data = adm1026_update_device(dev);
835 return sprintf(buf,"%d\n", INS_FROM_REG(16, data->in_max[16])
838 static ssize_t set_in16_max(struct device *dev, const char *buf, size_t count)
840 struct i2c_client *client = to_i2c_client(dev);
841 struct adm1026_data *data = i2c_get_clientdata(client);
844 down(&data->update_lock);
845 val = simple_strtol(buf, NULL, 10);
846 data->in_max[16] = INS_TO_REG(16, val+NEG12_OFFSET);
847 adm1026_write_value(client, ADM1026_REG_IN_MAX[16], data->in_max[16]);
848 up(&data->update_lock);
852 static DEVICE_ATTR(in16_input, S_IRUGO, show_in16, NULL);
853 static DEVICE_ATTR(in16_min, S_IRUGO | S_IWUSR, show_in16_min, set_in16_min);
854 static DEVICE_ATTR(in16_max, S_IRUGO | S_IWUSR, show_in16_max, set_in16_max);
859 /* Now add fan read/write functions */
861 static ssize_t show_fan(struct device *dev, char *buf, int nr)
863 struct adm1026_data *data = adm1026_update_device(dev);
864 return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan[nr],
867 static ssize_t show_fan_min(struct device *dev, char *buf, int nr)
869 struct adm1026_data *data = adm1026_update_device(dev);
870 return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan_min[nr],
873 static ssize_t set_fan_min(struct device *dev, const char *buf,
874 size_t count, int nr)
876 struct i2c_client *client = to_i2c_client(dev);
877 struct adm1026_data *data = i2c_get_clientdata(client);
880 down(&data->update_lock);
881 val = simple_strtol(buf, NULL, 10);
882 data->fan_min[nr] = FAN_TO_REG(val, data->fan_div[nr]);
883 adm1026_write_value(client, ADM1026_REG_FAN_MIN(nr),
885 up(&data->update_lock);
889 #define fan_offset(offset) \
890 static ssize_t show_fan_##offset (struct device *dev, char *buf) \
892 return show_fan(dev, buf, offset - 1); \
894 static ssize_t show_fan_##offset##_min (struct device *dev, char *buf) \
896 return show_fan_min(dev, buf, offset - 1); \
898 static ssize_t set_fan_##offset##_min (struct device *dev, \
899 const char *buf, size_t count) \
901 return set_fan_min(dev, buf, count, offset - 1); \
903 static DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan_##offset, NULL); \
904 static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
905 show_fan_##offset##_min, set_fan_##offset##_min);
916 /* Adjust fan_min to account for new fan divisor */
917 static void fixup_fan_min(struct device *dev, int fan, int old_div)
919 struct i2c_client *client = to_i2c_client(dev);
920 struct adm1026_data *data = i2c_get_clientdata(client);
922 int new_div = data->fan_div[fan];
924 /* 0 and 0xff are special. Don't adjust them */
925 if (data->fan_min[fan] == 0 || data->fan_min[fan] == 0xff) {
929 new_min = data->fan_min[fan] * old_div / new_div;
930 new_min = SENSORS_LIMIT(new_min, 1, 254);
931 data->fan_min[fan] = new_min;
932 adm1026_write_value(client, ADM1026_REG_FAN_MIN(fan), new_min);
935 /* Now add fan_div read/write functions */
936 static ssize_t show_fan_div(struct device *dev, char *buf, int nr)
938 struct adm1026_data *data = adm1026_update_device(dev);
939 return sprintf(buf,"%d\n", data->fan_div[nr]);
941 static ssize_t set_fan_div(struct device *dev, const char *buf,
942 size_t count, int nr)
944 struct i2c_client *client = to_i2c_client(dev);
945 struct adm1026_data *data = i2c_get_clientdata(client);
946 int val,orig_div,new_div,shift;
948 val = simple_strtol(buf, NULL, 10);
949 new_div = DIV_TO_REG(val);
953 down(&data->update_lock);
954 orig_div = data->fan_div[nr];
955 data->fan_div[nr] = DIV_FROM_REG(new_div);
957 if (nr < 4) { /* 0 <= nr < 4 */
959 adm1026_write_value(client, ADM1026_REG_FAN_DIV_0_3,
960 ((DIV_TO_REG(orig_div) & (~(0x03 << shift))) |
961 (new_div << shift)));
962 } else { /* 3 < nr < 8 */
963 shift = 2 * (nr - 4);
964 adm1026_write_value(client, ADM1026_REG_FAN_DIV_4_7,
965 ((DIV_TO_REG(orig_div) & (~(0x03 << (2 * shift)))) |
966 (new_div << shift)));
969 if (data->fan_div[nr] != orig_div) {
970 fixup_fan_min(dev,nr,orig_div);
972 up(&data->update_lock);
976 #define fan_offset_div(offset) \
977 static ssize_t show_fan_##offset##_div (struct device *dev, char *buf) \
979 return show_fan_div(dev, buf, offset - 1); \
981 static ssize_t set_fan_##offset##_div (struct device *dev, \
982 const char *buf, size_t count) \
984 return set_fan_div(dev, buf, count, offset - 1); \
986 static DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \
987 show_fan_##offset##_div, set_fan_##offset##_div);
999 static ssize_t show_temp(struct device *dev, char *buf, int nr)
1001 struct adm1026_data *data = adm1026_update_device(dev);
1002 return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp[nr]));
1004 static ssize_t show_temp_min(struct device *dev, char *buf, int nr)
1006 struct adm1026_data *data = adm1026_update_device(dev);
1007 return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_min[nr]));
1009 static ssize_t set_temp_min(struct device *dev, const char *buf,
1010 size_t count, int nr)
1012 struct i2c_client *client = to_i2c_client(dev);
1013 struct adm1026_data *data = i2c_get_clientdata(client);
1016 down(&data->update_lock);
1017 val = simple_strtol(buf, NULL, 10);
1018 data->temp_min[nr] = TEMP_TO_REG(val);
1019 adm1026_write_value(client, ADM1026_REG_TEMP_MIN[nr],
1020 data->temp_min[nr]);
1021 up(&data->update_lock);
1024 static ssize_t show_temp_max(struct device *dev, char *buf, int nr)
1026 struct adm1026_data *data = adm1026_update_device(dev);
1027 return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_max[nr]));
1029 static ssize_t set_temp_max(struct device *dev, const char *buf,
1030 size_t count, int nr)
1032 struct i2c_client *client = to_i2c_client(dev);
1033 struct adm1026_data *data = i2c_get_clientdata(client);
1036 down(&data->update_lock);
1037 val = simple_strtol(buf, NULL, 10);
1038 data->temp_max[nr] = TEMP_TO_REG(val);
1039 adm1026_write_value(client, ADM1026_REG_TEMP_MAX[nr],
1040 data->temp_max[nr]);
1041 up(&data->update_lock);
1044 #define temp_reg(offset) \
1045 static ssize_t show_temp_##offset (struct device *dev, char *buf) \
1047 return show_temp(dev, buf, offset - 1); \
1049 static ssize_t show_temp_##offset##_min (struct device *dev, char *buf) \
1051 return show_temp_min(dev, buf, offset - 1); \
1053 static ssize_t show_temp_##offset##_max (struct device *dev, char *buf) \
1055 return show_temp_max(dev, buf, offset - 1); \
1057 static ssize_t set_temp_##offset##_min (struct device *dev, \
1058 const char *buf, size_t count) \
1060 return set_temp_min(dev, buf, count, offset - 1); \
1062 static ssize_t set_temp_##offset##_max (struct device *dev, \
1063 const char *buf, size_t count) \
1065 return set_temp_max(dev, buf, count, offset - 1); \
1067 static DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp_##offset, NULL); \
1068 static DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \
1069 show_temp_##offset##_min, set_temp_##offset##_min); \
1070 static DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \
1071 show_temp_##offset##_max, set_temp_##offset##_max);
1078 static ssize_t show_temp_offset(struct device *dev, char *buf, int nr)
1080 struct adm1026_data *data = adm1026_update_device(dev);
1081 return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_offset[nr]));
1083 static ssize_t set_temp_offset(struct device *dev, const char *buf,
1084 size_t count, int nr)
1086 struct i2c_client *client = to_i2c_client(dev);
1087 struct adm1026_data *data = i2c_get_clientdata(client);
1090 down(&data->update_lock);
1091 val = simple_strtol(buf, NULL, 10);
1092 data->temp_offset[nr] = TEMP_TO_REG(val);
1093 adm1026_write_value(client, ADM1026_REG_TEMP_OFFSET[nr],
1094 data->temp_offset[nr]);
1095 up(&data->update_lock);
1099 #define temp_offset_reg(offset) \
1100 static ssize_t show_temp_##offset##_offset (struct device *dev, char *buf) \
1102 return show_temp_offset(dev, buf, offset - 1); \
1104 static ssize_t set_temp_##offset##_offset (struct device *dev, \
1105 const char *buf, size_t count) \
1107 return set_temp_offset(dev, buf, count, offset - 1); \
1109 static DEVICE_ATTR(temp##offset##_offset, S_IRUGO | S_IWUSR, \
1110 show_temp_##offset##_offset, set_temp_##offset##_offset);
1116 static ssize_t show_temp_auto_point1_temp_hyst(struct device *dev, char *buf,
1119 struct adm1026_data *data = adm1026_update_device(dev);
1120 return sprintf(buf,"%d\n", TEMP_FROM_REG(
1121 ADM1026_FAN_ACTIVATION_TEMP_HYST + data->temp_tmin[nr]));
1123 static ssize_t show_temp_auto_point2_temp(struct device *dev, char *buf,
1126 struct adm1026_data *data = adm1026_update_device(dev);
1127 return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_tmin[nr] +
1128 ADM1026_FAN_CONTROL_TEMP_RANGE));
1130 static ssize_t show_temp_auto_point1_temp(struct device *dev, char *buf,
1133 struct adm1026_data *data = adm1026_update_device(dev);
1134 return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_tmin[nr]));
1136 static ssize_t set_temp_auto_point1_temp(struct device *dev, const char *buf,
1137 size_t count, int nr)
1139 struct i2c_client *client = to_i2c_client(dev);
1140 struct adm1026_data *data = i2c_get_clientdata(client);
1143 down(&data->update_lock);
1144 val = simple_strtol(buf, NULL, 10);
1145 data->temp_tmin[nr] = TEMP_TO_REG(val);
1146 adm1026_write_value(client, ADM1026_REG_TEMP_TMIN[nr],
1147 data->temp_tmin[nr]);
1148 up(&data->update_lock);
1152 #define temp_auto_point(offset) \
1153 static ssize_t show_temp##offset##_auto_point1_temp (struct device *dev, \
1156 return show_temp_auto_point1_temp(dev, buf, offset - 1); \
1158 static ssize_t set_temp##offset##_auto_point1_temp (struct device *dev, \
1159 const char *buf, size_t count) \
1161 return set_temp_auto_point1_temp(dev, buf, count, offset - 1); \
1163 static ssize_t show_temp##offset##_auto_point1_temp_hyst (struct device \
1166 return show_temp_auto_point1_temp_hyst(dev, buf, offset - 1); \
1168 static ssize_t show_temp##offset##_auto_point2_temp (struct device *dev, \
1171 return show_temp_auto_point2_temp(dev, buf, offset - 1); \
1173 static DEVICE_ATTR(temp##offset##_auto_point1_temp, S_IRUGO | S_IWUSR, \
1174 show_temp##offset##_auto_point1_temp, \
1175 set_temp##offset##_auto_point1_temp); \
1176 static DEVICE_ATTR(temp##offset##_auto_point1_temp_hyst, S_IRUGO, \
1177 show_temp##offset##_auto_point1_temp_hyst, NULL); \
1178 static DEVICE_ATTR(temp##offset##_auto_point2_temp, S_IRUGO, \
1179 show_temp##offset##_auto_point2_temp, NULL);
1185 static ssize_t show_temp_crit_enable(struct device *dev, char *buf)
1187 struct adm1026_data *data = adm1026_update_device(dev);
1188 return sprintf(buf,"%d\n", (data->config1 & CFG1_THERM_HOT) >> 4);
1190 static ssize_t set_temp_crit_enable(struct device *dev, const char *buf,
1193 struct i2c_client *client = to_i2c_client(dev);
1194 struct adm1026_data *data = i2c_get_clientdata(client);
1197 val = simple_strtol(buf, NULL, 10);
1198 if ((val == 1) || (val==0)) {
1199 down(&data->update_lock);
1200 data->config1 = (data->config1 & ~CFG1_THERM_HOT) | (val << 4);
1201 adm1026_write_value(client, ADM1026_REG_CONFIG1,
1203 up(&data->update_lock);
1208 static DEVICE_ATTR(temp1_crit_enable, S_IRUGO | S_IWUSR,
1209 show_temp_crit_enable, set_temp_crit_enable);
1211 static DEVICE_ATTR(temp2_crit_enable, S_IRUGO | S_IWUSR,
1212 show_temp_crit_enable, set_temp_crit_enable);
1214 static DEVICE_ATTR(temp3_crit_enable, S_IRUGO | S_IWUSR,
1215 show_temp_crit_enable, set_temp_crit_enable);
1218 static ssize_t show_temp_crit(struct device *dev, char *buf, int nr)
1220 struct adm1026_data *data = adm1026_update_device(dev);
1221 return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_crit[nr]));
1223 static ssize_t set_temp_crit(struct device *dev, const char *buf,
1224 size_t count, int nr)
1226 struct i2c_client *client = to_i2c_client(dev);
1227 struct adm1026_data *data = i2c_get_clientdata(client);
1230 down(&data->update_lock);
1231 val = simple_strtol(buf, NULL, 10);
1232 data->temp_crit[nr] = TEMP_TO_REG(val);
1233 adm1026_write_value(client, ADM1026_REG_TEMP_THERM[nr],
1234 data->temp_crit[nr]);
1235 up(&data->update_lock);
1239 #define temp_crit_reg(offset) \
1240 static ssize_t show_temp_##offset##_crit (struct device *dev, char *buf) \
1242 return show_temp_crit(dev, buf, offset - 1); \
1244 static ssize_t set_temp_##offset##_crit (struct device *dev, \
1245 const char *buf, size_t count) \
1247 return set_temp_crit(dev, buf, count, offset - 1); \
1249 static DEVICE_ATTR(temp##offset##_crit, S_IRUGO | S_IWUSR, \
1250 show_temp_##offset##_crit, set_temp_##offset##_crit);
1256 static ssize_t show_analog_out_reg(struct device *dev, char *buf)
1258 struct adm1026_data *data = adm1026_update_device(dev);
1259 return sprintf(buf,"%d\n", DAC_FROM_REG(data->analog_out));
1261 static ssize_t set_analog_out_reg(struct device *dev, const char *buf,
1264 struct i2c_client *client = to_i2c_client(dev);
1265 struct adm1026_data *data = i2c_get_clientdata(client);
1268 down(&data->update_lock);
1269 val = simple_strtol(buf, NULL, 10);
1270 data->analog_out = DAC_TO_REG(val);
1271 adm1026_write_value(client, ADM1026_REG_DAC, data->analog_out);
1272 up(&data->update_lock);
1276 static DEVICE_ATTR(analog_out, S_IRUGO | S_IWUSR, show_analog_out_reg,
1277 set_analog_out_reg);
1279 static ssize_t show_vid_reg(struct device *dev, char *buf)
1281 struct adm1026_data *data = adm1026_update_device(dev);
1282 return sprintf(buf,"%d\n", vid_from_reg(data->vid & 0x3f, data->vrm));
1285 static DEVICE_ATTR(vid, S_IRUGO, show_vid_reg, NULL);
1287 static ssize_t show_vrm_reg(struct device *dev, char *buf)
1289 struct adm1026_data *data = adm1026_update_device(dev);
1290 return sprintf(buf,"%d\n", data->vrm);
1292 static ssize_t store_vrm_reg(struct device *dev, const char *buf,
1295 struct i2c_client *client = to_i2c_client(dev);
1296 struct adm1026_data *data = i2c_get_clientdata(client);
1298 data->vrm = simple_strtol(buf, NULL, 10);
1302 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
1304 static ssize_t show_alarms_reg(struct device *dev, char *buf)
1306 struct adm1026_data *data = adm1026_update_device(dev);
1307 return sprintf(buf, "%ld\n", (long) (data->alarms));
1310 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
1312 static ssize_t show_alarm_mask(struct device *dev, char *buf)
1314 struct adm1026_data *data = adm1026_update_device(dev);
1315 return sprintf(buf,"%ld\n", data->alarm_mask);
1317 static ssize_t set_alarm_mask(struct device *dev, const char *buf,
1320 struct i2c_client *client = to_i2c_client(dev);
1321 struct adm1026_data *data = i2c_get_clientdata(client);
1325 down(&data->update_lock);
1326 val = simple_strtol(buf, NULL, 10);
1327 data->alarm_mask = val & 0x7fffffff;
1328 mask = data->alarm_mask
1329 | (data->gpio_mask & 0x10000 ? 0x80000000 : 0);
1330 adm1026_write_value(client, ADM1026_REG_MASK1,
1333 adm1026_write_value(client, ADM1026_REG_MASK2,
1336 adm1026_write_value(client, ADM1026_REG_MASK3,
1339 adm1026_write_value(client, ADM1026_REG_MASK4,
1341 up(&data->update_lock);
1345 static DEVICE_ATTR(alarm_mask, S_IRUGO | S_IWUSR, show_alarm_mask,
1349 static ssize_t show_gpio(struct device *dev, char *buf)
1351 struct adm1026_data *data = adm1026_update_device(dev);
1352 return sprintf(buf,"%ld\n", data->gpio);
1354 static ssize_t set_gpio(struct device *dev, const char *buf,
1357 struct i2c_client *client = to_i2c_client(dev);
1358 struct adm1026_data *data = i2c_get_clientdata(client);
1362 down(&data->update_lock);
1363 val = simple_strtol(buf, NULL, 10);
1364 data->gpio = val & 0x1ffff;
1366 adm1026_write_value(client, ADM1026_REG_GPIO_STATUS_0_7,gpio & 0xff);
1368 adm1026_write_value(client, ADM1026_REG_GPIO_STATUS_8_15,gpio & 0xff);
1369 gpio = ((gpio >> 1) & 0x80) | (data->alarms >> 24 & 0x7f);
1370 adm1026_write_value(client, ADM1026_REG_STATUS4,gpio & 0xff);
1371 up(&data->update_lock);
1375 static DEVICE_ATTR(gpio, S_IRUGO | S_IWUSR, show_gpio, set_gpio);
1378 static ssize_t show_gpio_mask(struct device *dev, char *buf)
1380 struct adm1026_data *data = adm1026_update_device(dev);
1381 return sprintf(buf,"%ld\n", data->gpio_mask);
1383 static ssize_t set_gpio_mask(struct device *dev, const char *buf,
1386 struct i2c_client *client = to_i2c_client(dev);
1387 struct adm1026_data *data = i2c_get_clientdata(client);
1391 down(&data->update_lock);
1392 val = simple_strtol(buf, NULL, 10);
1393 data->gpio_mask = val & 0x1ffff;
1394 mask = data->gpio_mask;
1395 adm1026_write_value(client, ADM1026_REG_GPIO_MASK_0_7,mask & 0xff);
1397 adm1026_write_value(client, ADM1026_REG_GPIO_MASK_8_15,mask & 0xff);
1398 mask = ((mask >> 1) & 0x80) | (data->alarm_mask >> 24 & 0x7f);
1399 adm1026_write_value(client, ADM1026_REG_MASK1,mask & 0xff);
1400 up(&data->update_lock);
1404 static DEVICE_ATTR(gpio_mask, S_IRUGO | S_IWUSR, show_gpio_mask, set_gpio_mask);
1406 static ssize_t show_pwm_reg(struct device *dev, char *buf)
1408 struct adm1026_data *data = adm1026_update_device(dev);
1409 return sprintf(buf,"%d\n", PWM_FROM_REG(data->pwm1.pwm));
1411 static ssize_t set_pwm_reg(struct device *dev, const char *buf,
1414 struct i2c_client *client = to_i2c_client(dev);
1415 struct adm1026_data *data = i2c_get_clientdata(client);
1418 if (data->pwm1.enable == 1) {
1419 down(&data->update_lock);
1420 val = simple_strtol(buf, NULL, 10);
1421 data->pwm1.pwm = PWM_TO_REG(val);
1422 adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm);
1423 up(&data->update_lock);
1427 static ssize_t show_auto_pwm_min(struct device *dev, char *buf)
1429 struct adm1026_data *data = adm1026_update_device(dev);
1430 return sprintf(buf,"%d\n", data->pwm1.auto_pwm_min);
1432 static ssize_t set_auto_pwm_min(struct device *dev, const char *buf,
1435 struct i2c_client *client = to_i2c_client(dev);
1436 struct adm1026_data *data = i2c_get_clientdata(client);
1439 down(&data->update_lock);
1440 val = simple_strtol(buf, NULL, 10);
1441 data->pwm1.auto_pwm_min = SENSORS_LIMIT(val,0,255);
1442 if (data->pwm1.enable == 2) { /* apply immediately */
1443 data->pwm1.pwm = PWM_TO_REG((data->pwm1.pwm & 0x0f) |
1444 PWM_MIN_TO_REG(data->pwm1.auto_pwm_min));
1445 adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm);
1447 up(&data->update_lock);
1450 static ssize_t show_auto_pwm_max(struct device *dev, char *buf)
1452 return sprintf(buf,"%d\n", ADM1026_PWM_MAX);
1454 static ssize_t show_pwm_enable(struct device *dev, char *buf)
1456 struct adm1026_data *data = adm1026_update_device(dev);
1457 return sprintf(buf,"%d\n", data->pwm1.enable);
1459 static ssize_t set_pwm_enable(struct device *dev, const char *buf,
1462 struct i2c_client *client = to_i2c_client(dev);
1463 struct adm1026_data *data = i2c_get_clientdata(client);
1467 val = simple_strtol(buf, NULL, 10);
1468 if ((val >= 0) && (val < 3)) {
1469 down(&data->update_lock);
1470 old_enable = data->pwm1.enable;
1471 data->pwm1.enable = val;
1472 data->config1 = (data->config1 & ~CFG1_PWM_AFC)
1473 | ((val == 2) ? CFG1_PWM_AFC : 0);
1474 adm1026_write_value(client, ADM1026_REG_CONFIG1,
1476 if (val == 2) { /* apply pwm1_auto_pwm_min to pwm1 */
1477 data->pwm1.pwm = PWM_TO_REG((data->pwm1.pwm & 0x0f) |
1478 PWM_MIN_TO_REG(data->pwm1.auto_pwm_min));
1479 adm1026_write_value(client, ADM1026_REG_PWM,
1481 } else if (!((old_enable == 1) && (val == 1))) {
1482 /* set pwm to safe value */
1483 data->pwm1.pwm = 255;
1484 adm1026_write_value(client, ADM1026_REG_PWM,
1487 up(&data->update_lock);
1492 /* enable PWM fan control */
1493 static DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm_reg, set_pwm_reg);
1494 static DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, show_pwm_reg, set_pwm_reg);
1495 static DEVICE_ATTR(pwm3, S_IRUGO | S_IWUSR, show_pwm_reg, set_pwm_reg);
1496 static DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, show_pwm_enable,
1498 static DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR, show_pwm_enable,
1500 static DEVICE_ATTR(pwm3_enable, S_IRUGO | S_IWUSR, show_pwm_enable,
1502 static DEVICE_ATTR(temp1_auto_point1_pwm, S_IRUGO | S_IWUSR,
1503 show_auto_pwm_min, set_auto_pwm_min);
1504 static DEVICE_ATTR(temp2_auto_point1_pwm, S_IRUGO | S_IWUSR,
1505 show_auto_pwm_min, set_auto_pwm_min);
1506 static DEVICE_ATTR(temp3_auto_point1_pwm, S_IRUGO | S_IWUSR,
1507 show_auto_pwm_min, set_auto_pwm_min);
1509 static DEVICE_ATTR(temp1_auto_point2_pwm, S_IRUGO, show_auto_pwm_max, NULL);
1510 static DEVICE_ATTR(temp2_auto_point2_pwm, S_IRUGO, show_auto_pwm_max, NULL);
1511 static DEVICE_ATTR(temp3_auto_point2_pwm, S_IRUGO, show_auto_pwm_max, NULL);
1513 int adm1026_detect(struct i2c_adapter *adapter, int address,
1516 int company, verstep;
1517 struct i2c_client *new_client;
1518 struct adm1026_data *data;
1520 const char *type_name = "";
1522 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
1523 /* We need to be able to do byte I/O */
1527 /* OK. For now, we presume we have a valid client. We now create the
1528 client structure, even though we cannot fill it completely yet.
1529 But it allows us to access adm1026_{read,write}_value. */
1531 if (!(data = kmalloc(sizeof(struct adm1026_data), GFP_KERNEL))) {
1536 memset(data, 0, sizeof(struct adm1026_data));
1538 new_client = &data->client;
1539 i2c_set_clientdata(new_client, data);
1540 new_client->addr = address;
1541 new_client->adapter = adapter;
1542 new_client->driver = &adm1026_driver;
1543 new_client->flags = 0;
1545 /* Now, we do the remaining detection. */
1547 company = adm1026_read_value(new_client, ADM1026_REG_COMPANY);
1548 verstep = adm1026_read_value(new_client, ADM1026_REG_VERSTEP);
1550 dev_dbg(&new_client->dev, "Detecting device at %d,0x%02x with"
1551 " COMPANY: 0x%02x and VERSTEP: 0x%02x\n",
1552 i2c_adapter_id(new_client->adapter), new_client->addr,
1555 /* If auto-detecting, Determine the chip type. */
1557 dev_dbg(&new_client->dev, "Autodetecting device at %d,0x%02x "
1558 "...\n", i2c_adapter_id(adapter), address);
1559 if (company == ADM1026_COMPANY_ANALOG_DEV
1560 && verstep == ADM1026_VERSTEP_ADM1026) {
1562 } else if (company == ADM1026_COMPANY_ANALOG_DEV
1563 && (verstep & 0xf0) == ADM1026_VERSTEP_GENERIC) {
1564 dev_err(&adapter->dev, ": Unrecognized stepping "
1565 "0x%02x. Defaulting to ADM1026.\n", verstep);
1567 } else if ((verstep & 0xf0) == ADM1026_VERSTEP_GENERIC) {
1568 dev_err(&adapter->dev, ": Found version/stepping "
1569 "0x%02x. Assuming generic ADM1026.\n",
1573 dev_dbg(&new_client->dev, ": Autodetection "
1575 /* Not an ADM1026 ... */
1576 if (kind == 0) { /* User used force=x,y */
1577 dev_err(&adapter->dev, "Generic ADM1026 not "
1578 "found at %d,0x%02x. Try "
1580 i2c_adapter_id(adapter), address);
1587 /* Fill in the chip specific driver values */
1590 type_name = "adm1026";
1593 type_name = "adm1026";
1596 dev_err(&adapter->dev, ": Internal error, invalid "
1597 "kind (%d)!", kind);
1601 strlcpy(new_client->name, type_name, I2C_NAME_SIZE);
1603 /* Fill in the remaining client fields */
1604 new_client->id = adm1026_id++;
1607 init_MUTEX(&data->update_lock);
1609 dev_dbg(&new_client->dev, "(%d): Assigning ID %d to %s at %d,0x%02x\n",
1610 new_client->id, new_client->id, new_client->name,
1611 i2c_adapter_id(new_client->adapter),
1614 /* Tell the I2C layer a new client has arrived */
1615 if ((err = i2c_attach_client(new_client)))
1618 /* Set the VRM version */
1619 data->vrm = i2c_which_vrm();
1621 /* Initialize the ADM1026 chip */
1622 adm1026_init_client(new_client);
1624 /* Register sysfs hooks */
1625 device_create_file(&new_client->dev, &dev_attr_in0_input);
1626 device_create_file(&new_client->dev, &dev_attr_in0_max);
1627 device_create_file(&new_client->dev, &dev_attr_in0_min);
1628 device_create_file(&new_client->dev, &dev_attr_in1_input);
1629 device_create_file(&new_client->dev, &dev_attr_in1_max);
1630 device_create_file(&new_client->dev, &dev_attr_in1_min);
1631 device_create_file(&new_client->dev, &dev_attr_in2_input);
1632 device_create_file(&new_client->dev, &dev_attr_in2_max);
1633 device_create_file(&new_client->dev, &dev_attr_in2_min);
1634 device_create_file(&new_client->dev, &dev_attr_in3_input);
1635 device_create_file(&new_client->dev, &dev_attr_in3_max);
1636 device_create_file(&new_client->dev, &dev_attr_in3_min);
1637 device_create_file(&new_client->dev, &dev_attr_in4_input);
1638 device_create_file(&new_client->dev, &dev_attr_in4_max);
1639 device_create_file(&new_client->dev, &dev_attr_in4_min);
1640 device_create_file(&new_client->dev, &dev_attr_in5_input);
1641 device_create_file(&new_client->dev, &dev_attr_in5_max);
1642 device_create_file(&new_client->dev, &dev_attr_in5_min);
1643 device_create_file(&new_client->dev, &dev_attr_in6_input);
1644 device_create_file(&new_client->dev, &dev_attr_in6_max);
1645 device_create_file(&new_client->dev, &dev_attr_in6_min);
1646 device_create_file(&new_client->dev, &dev_attr_in7_input);
1647 device_create_file(&new_client->dev, &dev_attr_in7_max);
1648 device_create_file(&new_client->dev, &dev_attr_in7_min);
1649 device_create_file(&new_client->dev, &dev_attr_in8_input);
1650 device_create_file(&new_client->dev, &dev_attr_in8_max);
1651 device_create_file(&new_client->dev, &dev_attr_in8_min);
1652 device_create_file(&new_client->dev, &dev_attr_in9_input);
1653 device_create_file(&new_client->dev, &dev_attr_in9_max);
1654 device_create_file(&new_client->dev, &dev_attr_in9_min);
1655 device_create_file(&new_client->dev, &dev_attr_in10_input);
1656 device_create_file(&new_client->dev, &dev_attr_in10_max);
1657 device_create_file(&new_client->dev, &dev_attr_in10_min);
1658 device_create_file(&new_client->dev, &dev_attr_in11_input);
1659 device_create_file(&new_client->dev, &dev_attr_in11_max);
1660 device_create_file(&new_client->dev, &dev_attr_in11_min);
1661 device_create_file(&new_client->dev, &dev_attr_in12_input);
1662 device_create_file(&new_client->dev, &dev_attr_in12_max);
1663 device_create_file(&new_client->dev, &dev_attr_in12_min);
1664 device_create_file(&new_client->dev, &dev_attr_in13_input);
1665 device_create_file(&new_client->dev, &dev_attr_in13_max);
1666 device_create_file(&new_client->dev, &dev_attr_in13_min);
1667 device_create_file(&new_client->dev, &dev_attr_in14_input);
1668 device_create_file(&new_client->dev, &dev_attr_in14_max);
1669 device_create_file(&new_client->dev, &dev_attr_in14_min);
1670 device_create_file(&new_client->dev, &dev_attr_in15_input);
1671 device_create_file(&new_client->dev, &dev_attr_in15_max);
1672 device_create_file(&new_client->dev, &dev_attr_in15_min);
1673 device_create_file(&new_client->dev, &dev_attr_in16_input);
1674 device_create_file(&new_client->dev, &dev_attr_in16_max);
1675 device_create_file(&new_client->dev, &dev_attr_in16_min);
1676 device_create_file(&new_client->dev, &dev_attr_fan1_input);
1677 device_create_file(&new_client->dev, &dev_attr_fan1_div);
1678 device_create_file(&new_client->dev, &dev_attr_fan1_min);
1679 device_create_file(&new_client->dev, &dev_attr_fan2_input);
1680 device_create_file(&new_client->dev, &dev_attr_fan2_div);
1681 device_create_file(&new_client->dev, &dev_attr_fan2_min);
1682 device_create_file(&new_client->dev, &dev_attr_fan3_input);
1683 device_create_file(&new_client->dev, &dev_attr_fan3_div);
1684 device_create_file(&new_client->dev, &dev_attr_fan3_min);
1685 device_create_file(&new_client->dev, &dev_attr_fan4_input);
1686 device_create_file(&new_client->dev, &dev_attr_fan4_div);
1687 device_create_file(&new_client->dev, &dev_attr_fan4_min);
1688 device_create_file(&new_client->dev, &dev_attr_fan5_input);
1689 device_create_file(&new_client->dev, &dev_attr_fan5_div);
1690 device_create_file(&new_client->dev, &dev_attr_fan5_min);
1691 device_create_file(&new_client->dev, &dev_attr_fan6_input);
1692 device_create_file(&new_client->dev, &dev_attr_fan6_div);
1693 device_create_file(&new_client->dev, &dev_attr_fan6_min);
1694 device_create_file(&new_client->dev, &dev_attr_fan7_input);
1695 device_create_file(&new_client->dev, &dev_attr_fan7_div);
1696 device_create_file(&new_client->dev, &dev_attr_fan7_min);
1697 device_create_file(&new_client->dev, &dev_attr_fan8_input);
1698 device_create_file(&new_client->dev, &dev_attr_fan8_div);
1699 device_create_file(&new_client->dev, &dev_attr_fan8_min);
1700 device_create_file(&new_client->dev, &dev_attr_temp1_input);
1701 device_create_file(&new_client->dev, &dev_attr_temp1_max);
1702 device_create_file(&new_client->dev, &dev_attr_temp1_min);
1703 device_create_file(&new_client->dev, &dev_attr_temp2_input);
1704 device_create_file(&new_client->dev, &dev_attr_temp2_max);
1705 device_create_file(&new_client->dev, &dev_attr_temp2_min);
1706 device_create_file(&new_client->dev, &dev_attr_temp3_input);
1707 device_create_file(&new_client->dev, &dev_attr_temp3_max);
1708 device_create_file(&new_client->dev, &dev_attr_temp3_min);
1709 device_create_file(&new_client->dev, &dev_attr_temp1_offset);
1710 device_create_file(&new_client->dev, &dev_attr_temp2_offset);
1711 device_create_file(&new_client->dev, &dev_attr_temp3_offset);
1712 device_create_file(&new_client->dev,
1713 &dev_attr_temp1_auto_point1_temp);
1714 device_create_file(&new_client->dev,
1715 &dev_attr_temp2_auto_point1_temp);
1716 device_create_file(&new_client->dev,
1717 &dev_attr_temp3_auto_point1_temp);
1718 device_create_file(&new_client->dev,
1719 &dev_attr_temp1_auto_point1_temp_hyst);
1720 device_create_file(&new_client->dev,
1721 &dev_attr_temp2_auto_point1_temp_hyst);
1722 device_create_file(&new_client->dev,
1723 &dev_attr_temp3_auto_point1_temp_hyst);
1724 device_create_file(&new_client->dev,
1725 &dev_attr_temp1_auto_point2_temp);
1726 device_create_file(&new_client->dev,
1727 &dev_attr_temp2_auto_point2_temp);
1728 device_create_file(&new_client->dev,
1729 &dev_attr_temp3_auto_point2_temp);
1730 device_create_file(&new_client->dev, &dev_attr_temp1_crit);
1731 device_create_file(&new_client->dev, &dev_attr_temp2_crit);
1732 device_create_file(&new_client->dev, &dev_attr_temp3_crit);
1733 device_create_file(&new_client->dev, &dev_attr_temp1_crit_enable);
1734 device_create_file(&new_client->dev, &dev_attr_temp2_crit_enable);
1735 device_create_file(&new_client->dev, &dev_attr_temp3_crit_enable);
1736 device_create_file(&new_client->dev, &dev_attr_vid);
1737 device_create_file(&new_client->dev, &dev_attr_vrm);
1738 device_create_file(&new_client->dev, &dev_attr_alarms);
1739 device_create_file(&new_client->dev, &dev_attr_alarm_mask);
1740 device_create_file(&new_client->dev, &dev_attr_gpio);
1741 device_create_file(&new_client->dev, &dev_attr_gpio_mask);
1742 device_create_file(&new_client->dev, &dev_attr_pwm1);
1743 device_create_file(&new_client->dev, &dev_attr_pwm2);
1744 device_create_file(&new_client->dev, &dev_attr_pwm3);
1745 device_create_file(&new_client->dev, &dev_attr_pwm1_enable);
1746 device_create_file(&new_client->dev, &dev_attr_pwm2_enable);
1747 device_create_file(&new_client->dev, &dev_attr_pwm3_enable);
1748 device_create_file(&new_client->dev, &dev_attr_temp1_auto_point1_pwm);
1749 device_create_file(&new_client->dev, &dev_attr_temp2_auto_point1_pwm);
1750 device_create_file(&new_client->dev, &dev_attr_temp3_auto_point1_pwm);
1751 device_create_file(&new_client->dev, &dev_attr_temp1_auto_point2_pwm);
1752 device_create_file(&new_client->dev, &dev_attr_temp2_auto_point2_pwm);
1753 device_create_file(&new_client->dev, &dev_attr_temp3_auto_point2_pwm);
1754 device_create_file(&new_client->dev, &dev_attr_analog_out);
1757 /* Error out and cleanup code */
1763 static int __init sm_adm1026_init(void)
1765 return i2c_add_driver(&adm1026_driver);
1768 static void __exit sm_adm1026_exit(void)
1770 i2c_del_driver(&adm1026_driver);
1773 MODULE_LICENSE("GPL");
1774 MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, "
1775 "Justin Thiessen <jthiessen@penguincomputing.com>");
1776 MODULE_DESCRIPTION("ADM1026 driver");
1778 module_init(sm_adm1026_init);
1779 module_exit(sm_adm1026_exit);