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>
35 #include <linux/mutex.h>
37 /* Addresses to scan */
38 static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
40 /* Insmod parameters */
41 I2C_CLIENT_INSMOD_1(adm1026);
43 static int gpio_input[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
44 -1, -1, -1, -1, -1, -1, -1, -1 };
45 static int gpio_output[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
46 -1, -1, -1, -1, -1, -1, -1, -1 };
47 static int gpio_inverted[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
48 -1, -1, -1, -1, -1, -1, -1, -1 };
49 static int gpio_normal[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
50 -1, -1, -1, -1, -1, -1, -1, -1 };
51 static int gpio_fan[8] = { -1, -1, -1, -1, -1, -1, -1, -1 };
52 module_param_array(gpio_input, int, NULL, 0);
53 MODULE_PARM_DESC(gpio_input, "List of GPIO pins (0-16) to program as inputs");
54 module_param_array(gpio_output, int, NULL, 0);
55 MODULE_PARM_DESC(gpio_output, "List of GPIO pins (0-16) to program as "
57 module_param_array(gpio_inverted, int, NULL, 0);
58 MODULE_PARM_DESC(gpio_inverted, "List of GPIO pins (0-16) to program as "
60 module_param_array(gpio_normal, int, NULL, 0);
61 MODULE_PARM_DESC(gpio_normal, "List of GPIO pins (0-16) to program as "
62 "normal/non-inverted");
63 module_param_array(gpio_fan, int, NULL, 0);
64 MODULE_PARM_DESC(gpio_fan, "List of GPIO pins (0-7) to program as fan tachs");
66 /* Many ADM1026 constants specified below */
68 /* The ADM1026 registers */
69 #define ADM1026_REG_CONFIG1 0x00
70 #define CFG1_MONITOR 0x01
71 #define CFG1_INT_ENABLE 0x02
72 #define CFG1_INT_CLEAR 0x04
73 #define CFG1_AIN8_9 0x08
74 #define CFG1_THERM_HOT 0x10
75 #define CFG1_DAC_AFC 0x20
76 #define CFG1_PWM_AFC 0x40
77 #define CFG1_RESET 0x80
79 #define ADM1026_REG_CONFIG2 0x01
80 /* CONFIG2 controls FAN0/GPIO0 through FAN7/GPIO7 */
82 #define ADM1026_REG_CONFIG3 0x07
83 #define CFG3_GPIO16_ENABLE 0x01
84 #define CFG3_CI_CLEAR 0x02
85 #define CFG3_VREF_250 0x04
86 #define CFG3_GPIO16_DIR 0x40
87 #define CFG3_GPIO16_POL 0x80
89 #define ADM1026_REG_E2CONFIG 0x13
90 #define E2CFG_READ 0x01
91 #define E2CFG_WRITE 0x02
92 #define E2CFG_ERASE 0x04
93 #define E2CFG_ROM 0x08
94 #define E2CFG_CLK_EXT 0x80
96 /* There are 10 general analog inputs and 7 dedicated inputs
103 * 14 = Vccp (CPU core voltage)
107 static u16 ADM1026_REG_IN[] = {
108 0x30, 0x31, 0x32, 0x33, 0x34, 0x35,
109 0x36, 0x37, 0x27, 0x29, 0x26, 0x2a,
110 0x2b, 0x2c, 0x2d, 0x2e, 0x2f
112 static u16 ADM1026_REG_IN_MIN[] = {
113 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d,
114 0x5e, 0x5f, 0x6d, 0x49, 0x6b, 0x4a,
115 0x4b, 0x4c, 0x4d, 0x4e, 0x4f
117 static u16 ADM1026_REG_IN_MAX[] = {
118 0x50, 0x51, 0x52, 0x53, 0x54, 0x55,
119 0x56, 0x57, 0x6c, 0x41, 0x6a, 0x42,
120 0x43, 0x44, 0x45, 0x46, 0x47
128 static u16 ADM1026_REG_TEMP[] = { 0x1f, 0x28, 0x29 };
129 static u16 ADM1026_REG_TEMP_MIN[] = { 0x69, 0x48, 0x49 };
130 static u16 ADM1026_REG_TEMP_MAX[] = { 0x68, 0x40, 0x41 };
131 static u16 ADM1026_REG_TEMP_TMIN[] = { 0x10, 0x11, 0x12 };
132 static u16 ADM1026_REG_TEMP_THERM[] = { 0x0d, 0x0e, 0x0f };
133 static u16 ADM1026_REG_TEMP_OFFSET[] = { 0x1e, 0x6e, 0x6f };
135 #define ADM1026_REG_FAN(nr) (0x38 + (nr))
136 #define ADM1026_REG_FAN_MIN(nr) (0x60 + (nr))
137 #define ADM1026_REG_FAN_DIV_0_3 0x02
138 #define ADM1026_REG_FAN_DIV_4_7 0x03
140 #define ADM1026_REG_DAC 0x04
141 #define ADM1026_REG_PWM 0x05
143 #define ADM1026_REG_GPIO_CFG_0_3 0x08
144 #define ADM1026_REG_GPIO_CFG_4_7 0x09
145 #define ADM1026_REG_GPIO_CFG_8_11 0x0a
146 #define ADM1026_REG_GPIO_CFG_12_15 0x0b
147 /* CFG_16 in REG_CFG3 */
148 #define ADM1026_REG_GPIO_STATUS_0_7 0x24
149 #define ADM1026_REG_GPIO_STATUS_8_15 0x25
150 /* STATUS_16 in REG_STATUS4 */
151 #define ADM1026_REG_GPIO_MASK_0_7 0x1c
152 #define ADM1026_REG_GPIO_MASK_8_15 0x1d
153 /* MASK_16 in REG_MASK4 */
155 #define ADM1026_REG_COMPANY 0x16
156 #define ADM1026_REG_VERSTEP 0x17
157 /* These are the recognized values for the above regs */
158 #define ADM1026_COMPANY_ANALOG_DEV 0x41
159 #define ADM1026_VERSTEP_GENERIC 0x40
160 #define ADM1026_VERSTEP_ADM1026 0x44
162 #define ADM1026_REG_MASK1 0x18
163 #define ADM1026_REG_MASK2 0x19
164 #define ADM1026_REG_MASK3 0x1a
165 #define ADM1026_REG_MASK4 0x1b
167 #define ADM1026_REG_STATUS1 0x20
168 #define ADM1026_REG_STATUS2 0x21
169 #define ADM1026_REG_STATUS3 0x22
170 #define ADM1026_REG_STATUS4 0x23
172 #define ADM1026_FAN_ACTIVATION_TEMP_HYST -6
173 #define ADM1026_FAN_CONTROL_TEMP_RANGE 20
174 #define ADM1026_PWM_MAX 255
176 /* Conversions. Rounding and limit checking is only done on the TO_REG
177 * variants. Note that you should be a bit careful with which arguments
178 * these macros are called: arguments may be evaluated more than once.
181 /* IN are scaled acording to built-in resistors. These are the
182 * voltages corresponding to 3/4 of full scale (192 or 0xc0)
183 * NOTE: The -12V input needs an additional factor to account
184 * for the Vref pullup resistor.
185 * NEG12_OFFSET = SCALE * Vref / V-192 - Vref
186 * = 13875 * 2.50 / 1.875 - 2500
189 * The values in this table are based on Table II, page 15 of the
192 static int adm1026_scaling[] = { /* .001 Volts */
193 2250, 2250, 2250, 2250, 2250, 2250,
194 1875, 1875, 1875, 1875, 3000, 3330,
195 3330, 4995, 2250, 12000, 13875
197 #define NEG12_OFFSET 16000
198 #define SCALE(val, from, to) (((val)*(to) + ((from)/2))/(from))
199 #define INS_TO_REG(n, val) (SENSORS_LIMIT(SCALE(val, adm1026_scaling[n], 192),\
201 #define INS_FROM_REG(n, val) (SCALE(val, 192, adm1026_scaling[n]))
203 /* FAN speed is measured using 22.5kHz clock and counts for 2 pulses
204 * and we assume a 2 pulse-per-rev fan tach signal
205 * 22500 kHz * 60 (sec/min) * 2 (pulse) / 2 (pulse/rev) == 1350000
207 #define FAN_TO_REG(val, div) ((val) <= 0 ? 0xff : \
208 SENSORS_LIMIT(1350000/((val)*(div)), 1, 254))
209 #define FAN_FROM_REG(val, div) ((val) == 0 ? -1:(val) == 0xff ? 0 : \
210 1350000/((val)*(div)))
211 #define DIV_FROM_REG(val) (1<<(val))
212 #define DIV_TO_REG(val) ((val) >= 8 ? 3 : (val) >= 4 ? 2 : (val) >= 2 ? 1 : 0)
214 /* Temperature is reported in 1 degC increments */
215 #define TEMP_TO_REG(val) (SENSORS_LIMIT(((val)+((val)<0 ? -500 : 500))/1000,\
217 #define TEMP_FROM_REG(val) ((val) * 1000)
218 #define OFFSET_TO_REG(val) (SENSORS_LIMIT(((val)+((val)<0 ? -500 : 500))/1000,\
220 #define OFFSET_FROM_REG(val) ((val) * 1000)
222 #define PWM_TO_REG(val) (SENSORS_LIMIT(val, 0, 255))
223 #define PWM_FROM_REG(val) (val)
225 #define PWM_MIN_TO_REG(val) ((val) & 0xf0)
226 #define PWM_MIN_FROM_REG(val) (((val) & 0xf0) + ((val) >> 4))
228 /* Analog output is a voltage, and scaled to millivolts. The datasheet
229 * indicates that the DAC could be used to drive the fans, but in our
230 * example board (Arima HDAMA) it isn't connected to the fans at all.
232 #define DAC_TO_REG(val) (SENSORS_LIMIT(((((val)*255)+500)/2500), 0, 255))
233 #define DAC_FROM_REG(val) (((val)*2500)/255)
235 /* Typically used with systems using a v9.1 VRM spec ? */
236 #define ADM1026_INIT_VRM 91
238 /* Chip sampling rates
240 * Some sensors are not updated more frequently than once per second
241 * so it doesn't make sense to read them more often than that.
242 * We cache the results and return the saved data if the driver
243 * is called again before a second has elapsed.
245 * Also, there is significant configuration data for this chip
246 * So, we keep the config data up to date in the cache
247 * when it is written and only sample it once every 5 *minutes*
249 #define ADM1026_DATA_INTERVAL (1 * HZ)
250 #define ADM1026_CONFIG_INTERVAL (5 * 60 * HZ)
252 /* We allow for multiple chips in a single system.
254 * For each registered ADM1026, we need to keep state information
255 * at client->data. The adm1026_data structure is dynamically
256 * allocated, when a new client structure is allocated. */
264 struct adm1026_data {
265 struct i2c_client client;
266 struct device *hwmon_dev;
269 struct mutex update_lock;
270 int valid; /* !=0 if following fields are valid */
271 unsigned long last_reading; /* In jiffies */
272 unsigned long last_config; /* In jiffies */
274 u8 in[17]; /* Register value */
275 u8 in_max[17]; /* Register value */
276 u8 in_min[17]; /* Register value */
277 s8 temp[3]; /* Register value */
278 s8 temp_min[3]; /* Register value */
279 s8 temp_max[3]; /* Register value */
280 s8 temp_tmin[3]; /* Register value */
281 s8 temp_crit[3]; /* Register value */
282 s8 temp_offset[3]; /* Register value */
283 u8 fan[8]; /* Register value */
284 u8 fan_min[8]; /* Register value */
285 u8 fan_div[8]; /* Decoded value */
286 struct pwm_data pwm1; /* Pwm control values */
287 int vid; /* Decoded value */
288 u8 vrm; /* VRM version */
289 u8 analog_out; /* Register value (DAC) */
290 long alarms; /* Register encoding, combined */
291 long alarm_mask; /* Register encoding, combined */
292 long gpio; /* Register encoding, combined */
293 long gpio_mask; /* Register encoding, combined */
294 u8 gpio_config[17]; /* Decoded value */
295 u8 config1; /* Register value */
296 u8 config2; /* Register value */
297 u8 config3; /* Register value */
300 static int adm1026_attach_adapter(struct i2c_adapter *adapter);
301 static int adm1026_detect(struct i2c_adapter *adapter, int address,
303 static int adm1026_detach_client(struct i2c_client *client);
304 static int adm1026_read_value(struct i2c_client *client, u8 reg);
305 static int adm1026_write_value(struct i2c_client *client, u8 reg, int value);
306 static void adm1026_print_gpio(struct i2c_client *client);
307 static void adm1026_fixup_gpio(struct i2c_client *client);
308 static struct adm1026_data *adm1026_update_device(struct device *dev);
309 static void adm1026_init_client(struct i2c_client *client);
312 static struct i2c_driver adm1026_driver = {
316 .attach_adapter = adm1026_attach_adapter,
317 .detach_client = adm1026_detach_client,
320 static int adm1026_attach_adapter(struct i2c_adapter *adapter)
322 if (!(adapter->class & I2C_CLASS_HWMON)) {
325 return i2c_probe(adapter, &addr_data, adm1026_detect);
328 static int adm1026_read_value(struct i2c_client *client, u8 reg)
333 /* "RAM" locations */
334 res = i2c_smbus_read_byte_data(client, reg) & 0xff;
336 /* EEPROM, do nothing */
342 static int adm1026_write_value(struct i2c_client *client, u8 reg, int value)
347 /* "RAM" locations */
348 res = i2c_smbus_write_byte_data(client, reg, value);
350 /* EEPROM, do nothing */
356 static void adm1026_init_client(struct i2c_client *client)
359 struct adm1026_data *data = i2c_get_clientdata(client);
361 dev_dbg(&client->dev, "Initializing device\n");
362 /* Read chip config */
363 data->config1 = adm1026_read_value(client, ADM1026_REG_CONFIG1);
364 data->config2 = adm1026_read_value(client, ADM1026_REG_CONFIG2);
365 data->config3 = adm1026_read_value(client, ADM1026_REG_CONFIG3);
367 /* Inform user of chip config */
368 dev_dbg(&client->dev, "ADM1026_REG_CONFIG1 is: 0x%02x\n",
370 if ((data->config1 & CFG1_MONITOR) == 0) {
371 dev_dbg(&client->dev, "Monitoring not currently "
374 if (data->config1 & CFG1_INT_ENABLE) {
375 dev_dbg(&client->dev, "SMBALERT interrupts are "
378 if (data->config1 & CFG1_AIN8_9) {
379 dev_dbg(&client->dev, "in8 and in9 enabled. "
380 "temp3 disabled.\n");
382 dev_dbg(&client->dev, "temp3 enabled. in8 and "
385 if (data->config1 & CFG1_THERM_HOT) {
386 dev_dbg(&client->dev, "Automatic THERM, PWM, "
387 "and temp limits enabled.\n");
390 value = data->config3;
391 if (data->config3 & CFG3_GPIO16_ENABLE) {
392 dev_dbg(&client->dev, "GPIO16 enabled. THERM "
395 dev_dbg(&client->dev, "THERM pin enabled. "
396 "GPIO16 disabled.\n");
398 if (data->config3 & CFG3_VREF_250) {
399 dev_dbg(&client->dev, "Vref is 2.50 Volts.\n");
401 dev_dbg(&client->dev, "Vref is 1.82 Volts.\n");
403 /* Read and pick apart the existing GPIO configuration */
405 for (i = 0;i <= 15;++i) {
406 if ((i & 0x03) == 0) {
407 value = adm1026_read_value(client,
408 ADM1026_REG_GPIO_CFG_0_3 + i/4);
410 data->gpio_config[i] = value & 0x03;
413 data->gpio_config[16] = (data->config3 >> 6) & 0x03;
415 /* ... and then print it */
416 adm1026_print_gpio(client);
418 /* If the user asks us to reprogram the GPIO config, then
421 if (gpio_input[0] != -1 || gpio_output[0] != -1
422 || gpio_inverted[0] != -1 || gpio_normal[0] != -1
423 || gpio_fan[0] != -1) {
424 adm1026_fixup_gpio(client);
427 /* WE INTENTIONALLY make no changes to the limits,
428 * offsets, pwms, fans and zones. If they were
429 * configured, we don't want to mess with them.
430 * If they weren't, the default is 100% PWM, no
431 * control and will suffice until 'sensors -s'
432 * can be run by the user. We DO set the default
433 * value for pwm1.auto_pwm_min to its maximum
434 * so that enabling automatic pwm fan control
435 * without first setting a value for pwm1.auto_pwm_min
436 * will not result in potentially dangerous fan speed decrease.
438 data->pwm1.auto_pwm_min=255;
439 /* Start monitoring */
440 value = adm1026_read_value(client, ADM1026_REG_CONFIG1);
441 /* Set MONITOR, clear interrupt acknowledge and s/w reset */
442 value = (value | CFG1_MONITOR) & (~CFG1_INT_CLEAR & ~CFG1_RESET);
443 dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value);
444 data->config1 = value;
445 adm1026_write_value(client, ADM1026_REG_CONFIG1, value);
447 /* initialize fan_div[] to hardware defaults */
448 value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3) |
449 (adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7) << 8);
450 for (i = 0;i <= 7;++i) {
451 data->fan_div[i] = DIV_FROM_REG(value & 0x03);
456 static void adm1026_print_gpio(struct i2c_client *client)
458 struct adm1026_data *data = i2c_get_clientdata(client);
461 dev_dbg(&client->dev, "GPIO config is:");
462 for (i = 0;i <= 7;++i) {
463 if (data->config2 & (1 << i)) {
464 dev_dbg(&client->dev, "\t%sGP%s%d\n",
465 data->gpio_config[i] & 0x02 ? "" : "!",
466 data->gpio_config[i] & 0x01 ? "OUT" : "IN",
469 dev_dbg(&client->dev, "\tFAN%d\n", i);
472 for (i = 8;i <= 15;++i) {
473 dev_dbg(&client->dev, "\t%sGP%s%d\n",
474 data->gpio_config[i] & 0x02 ? "" : "!",
475 data->gpio_config[i] & 0x01 ? "OUT" : "IN",
478 if (data->config3 & CFG3_GPIO16_ENABLE) {
479 dev_dbg(&client->dev, "\t%sGP%s16\n",
480 data->gpio_config[16] & 0x02 ? "" : "!",
481 data->gpio_config[16] & 0x01 ? "OUT" : "IN");
483 /* GPIO16 is THERM */
484 dev_dbg(&client->dev, "\tTHERM\n");
488 static void adm1026_fixup_gpio(struct i2c_client *client)
490 struct adm1026_data *data = i2c_get_clientdata(client);
494 /* Make the changes requested. */
495 /* We may need to unlock/stop monitoring or soft-reset the
496 * chip before we can make changes. This hasn't been
501 for (i = 0;i <= 16;++i) {
502 if (gpio_output[i] >= 0 && gpio_output[i] <= 16) {
503 data->gpio_config[gpio_output[i]] |= 0x01;
505 /* if GPIO0-7 is output, it isn't a FAN tach */
506 if (gpio_output[i] >= 0 && gpio_output[i] <= 7) {
507 data->config2 |= 1 << gpio_output[i];
511 /* Input overrides output */
512 for (i = 0;i <= 16;++i) {
513 if (gpio_input[i] >= 0 && gpio_input[i] <= 16) {
514 data->gpio_config[gpio_input[i]] &= ~ 0x01;
516 /* if GPIO0-7 is input, it isn't a FAN tach */
517 if (gpio_input[i] >= 0 && gpio_input[i] <= 7) {
518 data->config2 |= 1 << gpio_input[i];
523 for (i = 0;i <= 16;++i) {
524 if (gpio_inverted[i] >= 0 && gpio_inverted[i] <= 16) {
525 data->gpio_config[gpio_inverted[i]] &= ~ 0x02;
529 /* Normal overrides inverted */
530 for (i = 0;i <= 16;++i) {
531 if (gpio_normal[i] >= 0 && gpio_normal[i] <= 16) {
532 data->gpio_config[gpio_normal[i]] |= 0x02;
536 /* Fan overrides input and output */
537 for (i = 0;i <= 7;++i) {
538 if (gpio_fan[i] >= 0 && gpio_fan[i] <= 7) {
539 data->config2 &= ~(1 << gpio_fan[i]);
543 /* Write new configs to registers */
544 adm1026_write_value(client, ADM1026_REG_CONFIG2, data->config2);
545 data->config3 = (data->config3 & 0x3f)
546 | ((data->gpio_config[16] & 0x03) << 6);
547 adm1026_write_value(client, ADM1026_REG_CONFIG3, data->config3);
548 for (i = 15, value = 0;i >= 0;--i) {
550 value |= data->gpio_config[i] & 0x03;
551 if ((i & 0x03) == 0) {
552 adm1026_write_value(client,
553 ADM1026_REG_GPIO_CFG_0_3 + i/4,
559 /* Print the new config */
560 adm1026_print_gpio(client);
564 static struct adm1026_data *adm1026_update_device(struct device *dev)
566 struct i2c_client *client = to_i2c_client(dev);
567 struct adm1026_data *data = i2c_get_clientdata(client);
569 long value, alarms, gpio;
571 mutex_lock(&data->update_lock);
573 || time_after(jiffies, data->last_reading + ADM1026_DATA_INTERVAL)) {
574 /* Things that change quickly */
575 dev_dbg(&client->dev, "Reading sensor values\n");
576 for (i = 0;i <= 16;++i) {
578 adm1026_read_value(client, ADM1026_REG_IN[i]);
581 for (i = 0;i <= 7;++i) {
583 adm1026_read_value(client, ADM1026_REG_FAN(i));
586 for (i = 0;i <= 2;++i) {
587 /* NOTE: temp[] is s8 and we assume 2's complement
588 * "conversion" in the assignment */
590 adm1026_read_value(client, ADM1026_REG_TEMP[i]);
593 data->pwm1.pwm = adm1026_read_value(client,
595 data->analog_out = adm1026_read_value(client,
597 /* GPIO16 is MSbit of alarms, move it to gpio */
598 alarms = adm1026_read_value(client, ADM1026_REG_STATUS4);
599 gpio = alarms & 0x80 ? 0x0100 : 0; /* GPIO16 */
602 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS3);
604 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS2);
606 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS1);
607 data->alarms = alarms;
609 /* Read the GPIO values */
610 gpio |= adm1026_read_value(client,
611 ADM1026_REG_GPIO_STATUS_8_15);
613 gpio |= adm1026_read_value(client,
614 ADM1026_REG_GPIO_STATUS_0_7);
617 data->last_reading = jiffies;
618 }; /* last_reading */
621 time_after(jiffies, data->last_config + ADM1026_CONFIG_INTERVAL)) {
622 /* Things that don't change often */
623 dev_dbg(&client->dev, "Reading config values\n");
624 for (i = 0;i <= 16;++i) {
625 data->in_min[i] = adm1026_read_value(client,
626 ADM1026_REG_IN_MIN[i]);
627 data->in_max[i] = adm1026_read_value(client,
628 ADM1026_REG_IN_MAX[i]);
631 value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3)
632 | (adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7)
634 for (i = 0;i <= 7;++i) {
635 data->fan_min[i] = adm1026_read_value(client,
636 ADM1026_REG_FAN_MIN(i));
637 data->fan_div[i] = DIV_FROM_REG(value & 0x03);
641 for (i = 0; i <= 2; ++i) {
642 /* NOTE: temp_xxx[] are s8 and we assume 2's
643 * complement "conversion" in the assignment
645 data->temp_min[i] = adm1026_read_value(client,
646 ADM1026_REG_TEMP_MIN[i]);
647 data->temp_max[i] = adm1026_read_value(client,
648 ADM1026_REG_TEMP_MAX[i]);
649 data->temp_tmin[i] = adm1026_read_value(client,
650 ADM1026_REG_TEMP_TMIN[i]);
651 data->temp_crit[i] = adm1026_read_value(client,
652 ADM1026_REG_TEMP_THERM[i]);
653 data->temp_offset[i] = adm1026_read_value(client,
654 ADM1026_REG_TEMP_OFFSET[i]);
657 /* Read the STATUS/alarm masks */
658 alarms = adm1026_read_value(client, ADM1026_REG_MASK4);
659 gpio = alarms & 0x80 ? 0x0100 : 0; /* GPIO16 */
660 alarms = (alarms & 0x7f) << 8;
661 alarms |= adm1026_read_value(client, ADM1026_REG_MASK3);
663 alarms |= adm1026_read_value(client, ADM1026_REG_MASK2);
665 alarms |= adm1026_read_value(client, ADM1026_REG_MASK1);
666 data->alarm_mask = alarms;
668 /* Read the GPIO values */
669 gpio |= adm1026_read_value(client,
670 ADM1026_REG_GPIO_MASK_8_15);
672 gpio |= adm1026_read_value(client, ADM1026_REG_GPIO_MASK_0_7);
673 data->gpio_mask = gpio;
675 /* Read various values from CONFIG1 */
676 data->config1 = adm1026_read_value(client,
677 ADM1026_REG_CONFIG1);
678 if (data->config1 & CFG1_PWM_AFC) {
679 data->pwm1.enable = 2;
680 data->pwm1.auto_pwm_min =
681 PWM_MIN_FROM_REG(data->pwm1.pwm);
683 /* Read the GPIO config */
684 data->config2 = adm1026_read_value(client,
685 ADM1026_REG_CONFIG2);
686 data->config3 = adm1026_read_value(client,
687 ADM1026_REG_CONFIG3);
688 data->gpio_config[16] = (data->config3 >> 6) & 0x03;
691 for (i = 0;i <= 15;++i) {
692 if ((i & 0x03) == 0) {
693 value = adm1026_read_value(client,
694 ADM1026_REG_GPIO_CFG_0_3 + i/4);
696 data->gpio_config[i] = value & 0x03;
700 data->last_config = jiffies;
703 dev_dbg(&client->dev, "Setting VID from GPIO11-15.\n");
704 data->vid = (data->gpio >> 11) & 0x1f;
706 mutex_unlock(&data->update_lock);
710 static ssize_t show_in(struct device *dev, struct device_attribute *attr,
713 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
714 int nr = sensor_attr->index;
715 struct adm1026_data *data = adm1026_update_device(dev);
716 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in[nr]));
718 static ssize_t show_in_min(struct device *dev, struct device_attribute *attr,
721 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
722 int nr = sensor_attr->index;
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, struct device_attribute *attr,
727 const char *buf, size_t count)
729 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
730 int nr = sensor_attr->index;
731 struct i2c_client *client = to_i2c_client(dev);
732 struct adm1026_data *data = i2c_get_clientdata(client);
733 int val = simple_strtol(buf, NULL, 10);
735 mutex_lock(&data->update_lock);
736 data->in_min[nr] = INS_TO_REG(nr, val);
737 adm1026_write_value(client, ADM1026_REG_IN_MIN[nr], data->in_min[nr]);
738 mutex_unlock(&data->update_lock);
741 static ssize_t show_in_max(struct device *dev, struct device_attribute *attr,
744 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
745 int nr = sensor_attr->index;
746 struct adm1026_data *data = adm1026_update_device(dev);
747 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_max[nr]));
749 static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
750 const char *buf, size_t count)
752 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
753 int nr = sensor_attr->index;
754 struct i2c_client *client = to_i2c_client(dev);
755 struct adm1026_data *data = i2c_get_clientdata(client);
756 int val = simple_strtol(buf, NULL, 10);
758 mutex_lock(&data->update_lock);
759 data->in_max[nr] = INS_TO_REG(nr, val);
760 adm1026_write_value(client, ADM1026_REG_IN_MAX[nr], data->in_max[nr]);
761 mutex_unlock(&data->update_lock);
765 #define in_reg(offset) \
766 static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in, \
768 static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \
769 show_in_min, set_in_min, offset); \
770 static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \
771 show_in_max, set_in_max, offset);
791 static ssize_t show_in16(struct device *dev, struct device_attribute *attr, char *buf)
793 struct adm1026_data *data = adm1026_update_device(dev);
794 return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in[16]) -
797 static ssize_t show_in16_min(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_min[16])
803 static ssize_t set_in16_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
805 struct i2c_client *client = to_i2c_client(dev);
806 struct adm1026_data *data = i2c_get_clientdata(client);
807 int val = simple_strtol(buf, NULL, 10);
809 mutex_lock(&data->update_lock);
810 data->in_min[16] = INS_TO_REG(16, val + NEG12_OFFSET);
811 adm1026_write_value(client, ADM1026_REG_IN_MIN[16], data->in_min[16]);
812 mutex_unlock(&data->update_lock);
815 static ssize_t show_in16_max(struct device *dev, struct device_attribute *attr, char *buf)
817 struct adm1026_data *data = adm1026_update_device(dev);
818 return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in_max[16])
821 static ssize_t set_in16_max(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
823 struct i2c_client *client = to_i2c_client(dev);
824 struct adm1026_data *data = i2c_get_clientdata(client);
825 int val = simple_strtol(buf, NULL, 10);
827 mutex_lock(&data->update_lock);
828 data->in_max[16] = INS_TO_REG(16, val+NEG12_OFFSET);
829 adm1026_write_value(client, ADM1026_REG_IN_MAX[16], data->in_max[16]);
830 mutex_unlock(&data->update_lock);
834 static SENSOR_DEVICE_ATTR(in16_input, S_IRUGO, show_in16, NULL, 16);
835 static SENSOR_DEVICE_ATTR(in16_min, S_IRUGO | S_IWUSR, show_in16_min, set_in16_min, 16);
836 static SENSOR_DEVICE_ATTR(in16_max, S_IRUGO | S_IWUSR, show_in16_max, set_in16_max, 16);
841 /* Now add fan read/write functions */
843 static ssize_t show_fan(struct device *dev, struct device_attribute *attr,
846 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
847 int nr = sensor_attr->index;
848 struct adm1026_data *data = adm1026_update_device(dev);
849 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr],
852 static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr,
855 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
856 int nr = sensor_attr->index;
857 struct adm1026_data *data = adm1026_update_device(dev);
858 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr],
861 static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
862 const char *buf, size_t count)
864 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
865 int nr = sensor_attr->index;
866 struct i2c_client *client = to_i2c_client(dev);
867 struct adm1026_data *data = i2c_get_clientdata(client);
868 int val = simple_strtol(buf, NULL, 10);
870 mutex_lock(&data->update_lock);
871 data->fan_min[nr] = FAN_TO_REG(val, data->fan_div[nr]);
872 adm1026_write_value(client, ADM1026_REG_FAN_MIN(nr),
874 mutex_unlock(&data->update_lock);
878 #define fan_offset(offset) \
879 static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan, NULL, \
881 static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
882 show_fan_min, set_fan_min, offset - 1);
893 /* Adjust fan_min to account for new fan divisor */
894 static void fixup_fan_min(struct device *dev, int fan, int old_div)
896 struct i2c_client *client = to_i2c_client(dev);
897 struct adm1026_data *data = i2c_get_clientdata(client);
899 int new_div = data->fan_div[fan];
901 /* 0 and 0xff are special. Don't adjust them */
902 if (data->fan_min[fan] == 0 || data->fan_min[fan] == 0xff) {
906 new_min = data->fan_min[fan] * old_div / new_div;
907 new_min = SENSORS_LIMIT(new_min, 1, 254);
908 data->fan_min[fan] = new_min;
909 adm1026_write_value(client, ADM1026_REG_FAN_MIN(fan), new_min);
912 /* Now add fan_div read/write functions */
913 static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr,
916 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
917 int nr = sensor_attr->index;
918 struct adm1026_data *data = adm1026_update_device(dev);
919 return sprintf(buf, "%d\n", data->fan_div[nr]);
921 static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
922 const char *buf, size_t count)
924 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
925 int nr = sensor_attr->index;
926 struct i2c_client *client = to_i2c_client(dev);
927 struct adm1026_data *data = i2c_get_clientdata(client);
928 int val, orig_div, new_div, shift;
930 val = simple_strtol(buf, NULL, 10);
931 new_div = DIV_TO_REG(val);
935 mutex_lock(&data->update_lock);
936 orig_div = data->fan_div[nr];
937 data->fan_div[nr] = DIV_FROM_REG(new_div);
939 if (nr < 4) { /* 0 <= nr < 4 */
941 adm1026_write_value(client, ADM1026_REG_FAN_DIV_0_3,
942 ((DIV_TO_REG(orig_div) & (~(0x03 << shift))) |
943 (new_div << shift)));
944 } else { /* 3 < nr < 8 */
945 shift = 2 * (nr - 4);
946 adm1026_write_value(client, ADM1026_REG_FAN_DIV_4_7,
947 ((DIV_TO_REG(orig_div) & (~(0x03 << (2 * shift)))) |
948 (new_div << shift)));
951 if (data->fan_div[nr] != orig_div) {
952 fixup_fan_min(dev, nr, orig_div);
954 mutex_unlock(&data->update_lock);
958 #define fan_offset_div(offset) \
959 static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \
960 show_fan_div, set_fan_div, offset - 1);
972 static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
975 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
976 int nr = sensor_attr->index;
977 struct adm1026_data *data = adm1026_update_device(dev);
978 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr]));
980 static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr,
983 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
984 int nr = sensor_attr->index;
985 struct adm1026_data *data = adm1026_update_device(dev);
986 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr]));
988 static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
989 const char *buf, size_t count)
991 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
992 int nr = sensor_attr->index;
993 struct i2c_client *client = to_i2c_client(dev);
994 struct adm1026_data *data = i2c_get_clientdata(client);
995 int val = simple_strtol(buf, NULL, 10);
997 mutex_lock(&data->update_lock);
998 data->temp_min[nr] = TEMP_TO_REG(val);
999 adm1026_write_value(client, ADM1026_REG_TEMP_MIN[nr],
1000 data->temp_min[nr]);
1001 mutex_unlock(&data->update_lock);
1004 static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr,
1007 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1008 int nr = sensor_attr->index;
1009 struct adm1026_data *data = adm1026_update_device(dev);
1010 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr]));
1012 static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
1013 const char *buf, size_t count)
1015 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1016 int nr = sensor_attr->index;
1017 struct i2c_client *client = to_i2c_client(dev);
1018 struct adm1026_data *data = i2c_get_clientdata(client);
1019 int val = simple_strtol(buf, NULL, 10);
1021 mutex_lock(&data->update_lock);
1022 data->temp_max[nr] = TEMP_TO_REG(val);
1023 adm1026_write_value(client, ADM1026_REG_TEMP_MAX[nr],
1024 data->temp_max[nr]);
1025 mutex_unlock(&data->update_lock);
1029 #define temp_reg(offset) \
1030 static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp, \
1031 NULL, offset - 1); \
1032 static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \
1033 show_temp_min, set_temp_min, offset - 1); \
1034 static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \
1035 show_temp_max, set_temp_max, offset - 1);
1042 static ssize_t show_temp_offset(struct device *dev,
1043 struct device_attribute *attr, char *buf)
1045 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1046 int nr = sensor_attr->index;
1047 struct adm1026_data *data = adm1026_update_device(dev);
1048 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_offset[nr]));
1050 static ssize_t set_temp_offset(struct device *dev,
1051 struct device_attribute *attr, const char *buf,
1054 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1055 int nr = sensor_attr->index;
1056 struct i2c_client *client = to_i2c_client(dev);
1057 struct adm1026_data *data = i2c_get_clientdata(client);
1058 int val = simple_strtol(buf, NULL, 10);
1060 mutex_lock(&data->update_lock);
1061 data->temp_offset[nr] = TEMP_TO_REG(val);
1062 adm1026_write_value(client, ADM1026_REG_TEMP_OFFSET[nr],
1063 data->temp_offset[nr]);
1064 mutex_unlock(&data->update_lock);
1068 #define temp_offset_reg(offset) \
1069 static SENSOR_DEVICE_ATTR(temp##offset##_offset, S_IRUGO | S_IWUSR, \
1070 show_temp_offset, set_temp_offset, offset - 1);
1076 static ssize_t show_temp_auto_point1_temp_hyst(struct device *dev,
1077 struct device_attribute *attr, char *buf)
1079 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1080 int nr = sensor_attr->index;
1081 struct adm1026_data *data = adm1026_update_device(dev);
1082 return sprintf(buf, "%d\n", TEMP_FROM_REG(
1083 ADM1026_FAN_ACTIVATION_TEMP_HYST + data->temp_tmin[nr]));
1085 static ssize_t show_temp_auto_point2_temp(struct device *dev,
1086 struct device_attribute *attr, char *buf)
1088 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1089 int nr = sensor_attr->index;
1090 struct adm1026_data *data = adm1026_update_device(dev);
1091 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_tmin[nr] +
1092 ADM1026_FAN_CONTROL_TEMP_RANGE));
1094 static ssize_t show_temp_auto_point1_temp(struct device *dev,
1095 struct device_attribute *attr, char *buf)
1097 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1098 int nr = sensor_attr->index;
1099 struct adm1026_data *data = adm1026_update_device(dev);
1100 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_tmin[nr]));
1102 static ssize_t set_temp_auto_point1_temp(struct device *dev,
1103 struct device_attribute *attr, const char *buf, size_t count)
1105 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1106 int nr = sensor_attr->index;
1107 struct i2c_client *client = to_i2c_client(dev);
1108 struct adm1026_data *data = i2c_get_clientdata(client);
1109 int val = simple_strtol(buf, NULL, 10);
1111 mutex_lock(&data->update_lock);
1112 data->temp_tmin[nr] = TEMP_TO_REG(val);
1113 adm1026_write_value(client, ADM1026_REG_TEMP_TMIN[nr],
1114 data->temp_tmin[nr]);
1115 mutex_unlock(&data->update_lock);
1119 #define temp_auto_point(offset) \
1120 static SENSOR_DEVICE_ATTR(temp##offset##_auto_point1_temp, \
1121 S_IRUGO | S_IWUSR, show_temp_auto_point1_temp, \
1122 set_temp_auto_point1_temp, offset - 1); \
1123 static SENSOR_DEVICE_ATTR(temp##offset##_auto_point1_temp_hyst, S_IRUGO,\
1124 show_temp_auto_point1_temp_hyst, NULL, offset - 1); \
1125 static SENSOR_DEVICE_ATTR(temp##offset##_auto_point2_temp, S_IRUGO, \
1126 show_temp_auto_point2_temp, NULL, offset - 1);
1132 static ssize_t show_temp_crit_enable(struct device *dev,
1133 struct device_attribute *attr, char *buf)
1135 struct adm1026_data *data = adm1026_update_device(dev);
1136 return sprintf(buf, "%d\n", (data->config1 & CFG1_THERM_HOT) >> 4);
1138 static ssize_t set_temp_crit_enable(struct device *dev,
1139 struct device_attribute *attr, const char *buf, size_t count)
1141 struct i2c_client *client = to_i2c_client(dev);
1142 struct adm1026_data *data = i2c_get_clientdata(client);
1143 int val = simple_strtol(buf, NULL, 10);
1145 if ((val == 1) || (val==0)) {
1146 mutex_lock(&data->update_lock);
1147 data->config1 = (data->config1 & ~CFG1_THERM_HOT) | (val << 4);
1148 adm1026_write_value(client, ADM1026_REG_CONFIG1,
1150 mutex_unlock(&data->update_lock);
1155 #define temp_crit_enable(offset) \
1156 static DEVICE_ATTR(temp##offset##_crit_enable, S_IRUGO | S_IWUSR, \
1157 show_temp_crit_enable, set_temp_crit_enable);
1159 temp_crit_enable(1);
1160 temp_crit_enable(2);
1161 temp_crit_enable(3);
1163 static ssize_t show_temp_crit(struct device *dev,
1164 struct device_attribute *attr, char *buf)
1166 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1167 int nr = sensor_attr->index;
1168 struct adm1026_data *data = adm1026_update_device(dev);
1169 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[nr]));
1171 static ssize_t set_temp_crit(struct device *dev, struct device_attribute *attr,
1172 const char *buf, size_t count)
1174 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1175 int nr = sensor_attr->index;
1176 struct i2c_client *client = to_i2c_client(dev);
1177 struct adm1026_data *data = i2c_get_clientdata(client);
1178 int val = simple_strtol(buf, NULL, 10);
1180 mutex_lock(&data->update_lock);
1181 data->temp_crit[nr] = TEMP_TO_REG(val);
1182 adm1026_write_value(client, ADM1026_REG_TEMP_THERM[nr],
1183 data->temp_crit[nr]);
1184 mutex_unlock(&data->update_lock);
1188 #define temp_crit_reg(offset) \
1189 static SENSOR_DEVICE_ATTR(temp##offset##_crit, S_IRUGO | S_IWUSR, \
1190 show_temp_crit, set_temp_crit, offset - 1);
1196 static ssize_t show_analog_out_reg(struct device *dev, struct device_attribute *attr, char *buf)
1198 struct adm1026_data *data = adm1026_update_device(dev);
1199 return sprintf(buf, "%d\n", DAC_FROM_REG(data->analog_out));
1201 static ssize_t set_analog_out_reg(struct device *dev, struct device_attribute *attr, const char *buf,
1204 struct i2c_client *client = to_i2c_client(dev);
1205 struct adm1026_data *data = i2c_get_clientdata(client);
1206 int val = simple_strtol(buf, NULL, 10);
1208 mutex_lock(&data->update_lock);
1209 data->analog_out = DAC_TO_REG(val);
1210 adm1026_write_value(client, ADM1026_REG_DAC, data->analog_out);
1211 mutex_unlock(&data->update_lock);
1215 static DEVICE_ATTR(analog_out, S_IRUGO | S_IWUSR, show_analog_out_reg,
1216 set_analog_out_reg);
1218 static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf)
1220 struct adm1026_data *data = adm1026_update_device(dev);
1221 return sprintf(buf, "%d\n", vid_from_reg(data->vid & 0x3f, data->vrm));
1223 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
1225 static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf)
1227 struct adm1026_data *data = dev_get_drvdata(dev);
1228 return sprintf(buf, "%d\n", data->vrm);
1230 static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf,
1233 struct i2c_client *client = to_i2c_client(dev);
1234 struct adm1026_data *data = i2c_get_clientdata(client);
1236 data->vrm = simple_strtol(buf, NULL, 10);
1240 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
1242 static ssize_t show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
1244 struct adm1026_data *data = adm1026_update_device(dev);
1245 return sprintf(buf, "%ld\n", (long) (data->alarms));
1248 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
1250 static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
1253 struct adm1026_data *data = adm1026_update_device(dev);
1254 int bitnr = to_sensor_dev_attr(attr)->index;
1255 return sprintf(buf, "%ld\n", (data->alarms >> bitnr) & 1);
1258 static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 0);
1259 static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 1);
1260 static SENSOR_DEVICE_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, 1);
1261 static SENSOR_DEVICE_ATTR(in11_alarm, S_IRUGO, show_alarm, NULL, 2);
1262 static SENSOR_DEVICE_ATTR(in12_alarm, S_IRUGO, show_alarm, NULL, 3);
1263 static SENSOR_DEVICE_ATTR(in13_alarm, S_IRUGO, show_alarm, NULL, 4);
1264 static SENSOR_DEVICE_ATTR(in14_alarm, S_IRUGO, show_alarm, NULL, 5);
1265 static SENSOR_DEVICE_ATTR(in15_alarm, S_IRUGO, show_alarm, NULL, 6);
1266 static SENSOR_DEVICE_ATTR(in16_alarm, S_IRUGO, show_alarm, NULL, 7);
1267 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 8);
1268 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 9);
1269 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 10);
1270 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 11);
1271 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 12);
1272 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 13);
1273 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 14);
1274 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 15);
1275 static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 16);
1276 static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 17);
1277 static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 18);
1278 static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 19);
1279 static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 20);
1280 static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 21);
1281 static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL, 22);
1282 static SENSOR_DEVICE_ATTR(fan8_alarm, S_IRUGO, show_alarm, NULL, 23);
1283 static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 24);
1284 static SENSOR_DEVICE_ATTR(in10_alarm, S_IRUGO, show_alarm, NULL, 25);
1285 static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 26);
1287 static ssize_t show_alarm_mask(struct device *dev, struct device_attribute *attr, char *buf)
1289 struct adm1026_data *data = adm1026_update_device(dev);
1290 return sprintf(buf, "%ld\n", data->alarm_mask);
1292 static ssize_t set_alarm_mask(struct device *dev, struct device_attribute *attr, const char *buf,
1295 struct i2c_client *client = to_i2c_client(dev);
1296 struct adm1026_data *data = i2c_get_clientdata(client);
1297 int val = simple_strtol(buf, NULL, 10);
1300 mutex_lock(&data->update_lock);
1301 data->alarm_mask = val & 0x7fffffff;
1302 mask = data->alarm_mask
1303 | (data->gpio_mask & 0x10000 ? 0x80000000 : 0);
1304 adm1026_write_value(client, ADM1026_REG_MASK1,
1307 adm1026_write_value(client, ADM1026_REG_MASK2,
1310 adm1026_write_value(client, ADM1026_REG_MASK3,
1313 adm1026_write_value(client, ADM1026_REG_MASK4,
1315 mutex_unlock(&data->update_lock);
1319 static DEVICE_ATTR(alarm_mask, S_IRUGO | S_IWUSR, show_alarm_mask,
1323 static ssize_t show_gpio(struct device *dev, struct device_attribute *attr, char *buf)
1325 struct adm1026_data *data = adm1026_update_device(dev);
1326 return sprintf(buf, "%ld\n", data->gpio);
1328 static ssize_t set_gpio(struct device *dev, struct device_attribute *attr, const char *buf,
1331 struct i2c_client *client = to_i2c_client(dev);
1332 struct adm1026_data *data = i2c_get_clientdata(client);
1333 int val = simple_strtol(buf, NULL, 10);
1336 mutex_lock(&data->update_lock);
1337 data->gpio = val & 0x1ffff;
1339 adm1026_write_value(client, ADM1026_REG_GPIO_STATUS_0_7, gpio & 0xff);
1341 adm1026_write_value(client, ADM1026_REG_GPIO_STATUS_8_15, gpio & 0xff);
1342 gpio = ((gpio >> 1) & 0x80) | (data->alarms >> 24 & 0x7f);
1343 adm1026_write_value(client, ADM1026_REG_STATUS4, gpio & 0xff);
1344 mutex_unlock(&data->update_lock);
1348 static DEVICE_ATTR(gpio, S_IRUGO | S_IWUSR, show_gpio, set_gpio);
1351 static ssize_t show_gpio_mask(struct device *dev, struct device_attribute *attr, char *buf)
1353 struct adm1026_data *data = adm1026_update_device(dev);
1354 return sprintf(buf, "%ld\n", data->gpio_mask);
1356 static ssize_t set_gpio_mask(struct device *dev, struct device_attribute *attr, const char *buf,
1359 struct i2c_client *client = to_i2c_client(dev);
1360 struct adm1026_data *data = i2c_get_clientdata(client);
1361 int val = simple_strtol(buf, NULL, 10);
1364 mutex_lock(&data->update_lock);
1365 data->gpio_mask = val & 0x1ffff;
1366 mask = data->gpio_mask;
1367 adm1026_write_value(client, ADM1026_REG_GPIO_MASK_0_7, mask & 0xff);
1369 adm1026_write_value(client, ADM1026_REG_GPIO_MASK_8_15, mask & 0xff);
1370 mask = ((mask >> 1) & 0x80) | (data->alarm_mask >> 24 & 0x7f);
1371 adm1026_write_value(client, ADM1026_REG_MASK1, mask & 0xff);
1372 mutex_unlock(&data->update_lock);
1376 static DEVICE_ATTR(gpio_mask, S_IRUGO | S_IWUSR, show_gpio_mask, set_gpio_mask);
1378 static ssize_t show_pwm_reg(struct device *dev, struct device_attribute *attr, char *buf)
1380 struct adm1026_data *data = adm1026_update_device(dev);
1381 return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm1.pwm));
1383 static ssize_t set_pwm_reg(struct device *dev, struct device_attribute *attr, const char *buf,
1386 struct i2c_client *client = to_i2c_client(dev);
1387 struct adm1026_data *data = i2c_get_clientdata(client);
1389 if (data->pwm1.enable == 1) {
1390 int val = simple_strtol(buf, NULL, 10);
1392 mutex_lock(&data->update_lock);
1393 data->pwm1.pwm = PWM_TO_REG(val);
1394 adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm);
1395 mutex_unlock(&data->update_lock);
1399 static ssize_t show_auto_pwm_min(struct device *dev, struct device_attribute *attr, char *buf)
1401 struct adm1026_data *data = adm1026_update_device(dev);
1402 return sprintf(buf, "%d\n", data->pwm1.auto_pwm_min);
1404 static ssize_t set_auto_pwm_min(struct device *dev, struct device_attribute *attr, const char *buf,
1407 struct i2c_client *client = to_i2c_client(dev);
1408 struct adm1026_data *data = i2c_get_clientdata(client);
1409 int val = simple_strtol(buf, NULL, 10);
1411 mutex_lock(&data->update_lock);
1412 data->pwm1.auto_pwm_min = SENSORS_LIMIT(val, 0, 255);
1413 if (data->pwm1.enable == 2) { /* apply immediately */
1414 data->pwm1.pwm = PWM_TO_REG((data->pwm1.pwm & 0x0f) |
1415 PWM_MIN_TO_REG(data->pwm1.auto_pwm_min));
1416 adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm);
1418 mutex_unlock(&data->update_lock);
1421 static ssize_t show_auto_pwm_max(struct device *dev, struct device_attribute *attr, char *buf)
1423 return sprintf(buf, "%d\n", ADM1026_PWM_MAX);
1425 static ssize_t show_pwm_enable(struct device *dev, struct device_attribute *attr, char *buf)
1427 struct adm1026_data *data = adm1026_update_device(dev);
1428 return sprintf(buf, "%d\n", data->pwm1.enable);
1430 static ssize_t set_pwm_enable(struct device *dev, struct device_attribute *attr, const char *buf,
1433 struct i2c_client *client = to_i2c_client(dev);
1434 struct adm1026_data *data = i2c_get_clientdata(client);
1435 int val = simple_strtol(buf, NULL, 10);
1438 if ((val >= 0) && (val < 3)) {
1439 mutex_lock(&data->update_lock);
1440 old_enable = data->pwm1.enable;
1441 data->pwm1.enable = val;
1442 data->config1 = (data->config1 & ~CFG1_PWM_AFC)
1443 | ((val == 2) ? CFG1_PWM_AFC : 0);
1444 adm1026_write_value(client, ADM1026_REG_CONFIG1,
1446 if (val == 2) { /* apply pwm1_auto_pwm_min to pwm1 */
1447 data->pwm1.pwm = PWM_TO_REG((data->pwm1.pwm & 0x0f) |
1448 PWM_MIN_TO_REG(data->pwm1.auto_pwm_min));
1449 adm1026_write_value(client, ADM1026_REG_PWM,
1451 } else if (!((old_enable == 1) && (val == 1))) {
1452 /* set pwm to safe value */
1453 data->pwm1.pwm = 255;
1454 adm1026_write_value(client, ADM1026_REG_PWM,
1457 mutex_unlock(&data->update_lock);
1462 /* enable PWM fan control */
1463 static DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm_reg, set_pwm_reg);
1464 static DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, show_pwm_reg, set_pwm_reg);
1465 static DEVICE_ATTR(pwm3, S_IRUGO | S_IWUSR, show_pwm_reg, set_pwm_reg);
1466 static DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, show_pwm_enable,
1468 static DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR, show_pwm_enable,
1470 static DEVICE_ATTR(pwm3_enable, S_IRUGO | S_IWUSR, show_pwm_enable,
1472 static DEVICE_ATTR(temp1_auto_point1_pwm, S_IRUGO | S_IWUSR,
1473 show_auto_pwm_min, set_auto_pwm_min);
1474 static DEVICE_ATTR(temp2_auto_point1_pwm, S_IRUGO | S_IWUSR,
1475 show_auto_pwm_min, set_auto_pwm_min);
1476 static DEVICE_ATTR(temp3_auto_point1_pwm, S_IRUGO | S_IWUSR,
1477 show_auto_pwm_min, set_auto_pwm_min);
1479 static DEVICE_ATTR(temp1_auto_point2_pwm, S_IRUGO, show_auto_pwm_max, NULL);
1480 static DEVICE_ATTR(temp2_auto_point2_pwm, S_IRUGO, show_auto_pwm_max, NULL);
1481 static DEVICE_ATTR(temp3_auto_point2_pwm, S_IRUGO, show_auto_pwm_max, NULL);
1483 static struct attribute *adm1026_attributes[] = {
1484 &sensor_dev_attr_in0_input.dev_attr.attr,
1485 &sensor_dev_attr_in0_max.dev_attr.attr,
1486 &sensor_dev_attr_in0_min.dev_attr.attr,
1487 &sensor_dev_attr_in0_alarm.dev_attr.attr,
1488 &sensor_dev_attr_in1_input.dev_attr.attr,
1489 &sensor_dev_attr_in1_max.dev_attr.attr,
1490 &sensor_dev_attr_in1_min.dev_attr.attr,
1491 &sensor_dev_attr_in1_alarm.dev_attr.attr,
1492 &sensor_dev_attr_in2_input.dev_attr.attr,
1493 &sensor_dev_attr_in2_max.dev_attr.attr,
1494 &sensor_dev_attr_in2_min.dev_attr.attr,
1495 &sensor_dev_attr_in2_alarm.dev_attr.attr,
1496 &sensor_dev_attr_in3_input.dev_attr.attr,
1497 &sensor_dev_attr_in3_max.dev_attr.attr,
1498 &sensor_dev_attr_in3_min.dev_attr.attr,
1499 &sensor_dev_attr_in3_alarm.dev_attr.attr,
1500 &sensor_dev_attr_in4_input.dev_attr.attr,
1501 &sensor_dev_attr_in4_max.dev_attr.attr,
1502 &sensor_dev_attr_in4_min.dev_attr.attr,
1503 &sensor_dev_attr_in4_alarm.dev_attr.attr,
1504 &sensor_dev_attr_in5_input.dev_attr.attr,
1505 &sensor_dev_attr_in5_max.dev_attr.attr,
1506 &sensor_dev_attr_in5_min.dev_attr.attr,
1507 &sensor_dev_attr_in5_alarm.dev_attr.attr,
1508 &sensor_dev_attr_in6_input.dev_attr.attr,
1509 &sensor_dev_attr_in6_max.dev_attr.attr,
1510 &sensor_dev_attr_in6_min.dev_attr.attr,
1511 &sensor_dev_attr_in6_alarm.dev_attr.attr,
1512 &sensor_dev_attr_in7_input.dev_attr.attr,
1513 &sensor_dev_attr_in7_max.dev_attr.attr,
1514 &sensor_dev_attr_in7_min.dev_attr.attr,
1515 &sensor_dev_attr_in7_alarm.dev_attr.attr,
1516 &sensor_dev_attr_in8_input.dev_attr.attr,
1517 &sensor_dev_attr_in8_max.dev_attr.attr,
1518 &sensor_dev_attr_in8_min.dev_attr.attr,
1519 &sensor_dev_attr_in8_alarm.dev_attr.attr,
1520 &sensor_dev_attr_in9_input.dev_attr.attr,
1521 &sensor_dev_attr_in9_max.dev_attr.attr,
1522 &sensor_dev_attr_in9_min.dev_attr.attr,
1523 &sensor_dev_attr_in9_alarm.dev_attr.attr,
1524 &sensor_dev_attr_in10_input.dev_attr.attr,
1525 &sensor_dev_attr_in10_max.dev_attr.attr,
1526 &sensor_dev_attr_in10_min.dev_attr.attr,
1527 &sensor_dev_attr_in10_alarm.dev_attr.attr,
1528 &sensor_dev_attr_in11_input.dev_attr.attr,
1529 &sensor_dev_attr_in11_max.dev_attr.attr,
1530 &sensor_dev_attr_in11_min.dev_attr.attr,
1531 &sensor_dev_attr_in11_alarm.dev_attr.attr,
1532 &sensor_dev_attr_in12_input.dev_attr.attr,
1533 &sensor_dev_attr_in12_max.dev_attr.attr,
1534 &sensor_dev_attr_in12_min.dev_attr.attr,
1535 &sensor_dev_attr_in12_alarm.dev_attr.attr,
1536 &sensor_dev_attr_in13_input.dev_attr.attr,
1537 &sensor_dev_attr_in13_max.dev_attr.attr,
1538 &sensor_dev_attr_in13_min.dev_attr.attr,
1539 &sensor_dev_attr_in13_alarm.dev_attr.attr,
1540 &sensor_dev_attr_in14_input.dev_attr.attr,
1541 &sensor_dev_attr_in14_max.dev_attr.attr,
1542 &sensor_dev_attr_in14_min.dev_attr.attr,
1543 &sensor_dev_attr_in14_alarm.dev_attr.attr,
1544 &sensor_dev_attr_in15_input.dev_attr.attr,
1545 &sensor_dev_attr_in15_max.dev_attr.attr,
1546 &sensor_dev_attr_in15_min.dev_attr.attr,
1547 &sensor_dev_attr_in15_alarm.dev_attr.attr,
1548 &sensor_dev_attr_in16_input.dev_attr.attr,
1549 &sensor_dev_attr_in16_max.dev_attr.attr,
1550 &sensor_dev_attr_in16_min.dev_attr.attr,
1551 &sensor_dev_attr_in16_alarm.dev_attr.attr,
1552 &sensor_dev_attr_fan1_input.dev_attr.attr,
1553 &sensor_dev_attr_fan1_div.dev_attr.attr,
1554 &sensor_dev_attr_fan1_min.dev_attr.attr,
1555 &sensor_dev_attr_fan1_alarm.dev_attr.attr,
1556 &sensor_dev_attr_fan2_input.dev_attr.attr,
1557 &sensor_dev_attr_fan2_div.dev_attr.attr,
1558 &sensor_dev_attr_fan2_min.dev_attr.attr,
1559 &sensor_dev_attr_fan2_alarm.dev_attr.attr,
1560 &sensor_dev_attr_fan3_input.dev_attr.attr,
1561 &sensor_dev_attr_fan3_div.dev_attr.attr,
1562 &sensor_dev_attr_fan3_min.dev_attr.attr,
1563 &sensor_dev_attr_fan3_alarm.dev_attr.attr,
1564 &sensor_dev_attr_fan4_input.dev_attr.attr,
1565 &sensor_dev_attr_fan4_div.dev_attr.attr,
1566 &sensor_dev_attr_fan4_min.dev_attr.attr,
1567 &sensor_dev_attr_fan4_alarm.dev_attr.attr,
1568 &sensor_dev_attr_fan5_input.dev_attr.attr,
1569 &sensor_dev_attr_fan5_div.dev_attr.attr,
1570 &sensor_dev_attr_fan5_min.dev_attr.attr,
1571 &sensor_dev_attr_fan5_alarm.dev_attr.attr,
1572 &sensor_dev_attr_fan6_input.dev_attr.attr,
1573 &sensor_dev_attr_fan6_div.dev_attr.attr,
1574 &sensor_dev_attr_fan6_min.dev_attr.attr,
1575 &sensor_dev_attr_fan6_alarm.dev_attr.attr,
1576 &sensor_dev_attr_fan7_input.dev_attr.attr,
1577 &sensor_dev_attr_fan7_div.dev_attr.attr,
1578 &sensor_dev_attr_fan7_min.dev_attr.attr,
1579 &sensor_dev_attr_fan7_alarm.dev_attr.attr,
1580 &sensor_dev_attr_fan8_input.dev_attr.attr,
1581 &sensor_dev_attr_fan8_div.dev_attr.attr,
1582 &sensor_dev_attr_fan8_min.dev_attr.attr,
1583 &sensor_dev_attr_fan8_alarm.dev_attr.attr,
1584 &sensor_dev_attr_temp1_input.dev_attr.attr,
1585 &sensor_dev_attr_temp1_max.dev_attr.attr,
1586 &sensor_dev_attr_temp1_min.dev_attr.attr,
1587 &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1588 &sensor_dev_attr_temp2_input.dev_attr.attr,
1589 &sensor_dev_attr_temp2_max.dev_attr.attr,
1590 &sensor_dev_attr_temp2_min.dev_attr.attr,
1591 &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1592 &sensor_dev_attr_temp3_input.dev_attr.attr,
1593 &sensor_dev_attr_temp3_max.dev_attr.attr,
1594 &sensor_dev_attr_temp3_min.dev_attr.attr,
1595 &sensor_dev_attr_temp3_alarm.dev_attr.attr,
1596 &sensor_dev_attr_temp1_offset.dev_attr.attr,
1597 &sensor_dev_attr_temp2_offset.dev_attr.attr,
1598 &sensor_dev_attr_temp3_offset.dev_attr.attr,
1599 &sensor_dev_attr_temp1_auto_point1_temp.dev_attr.attr,
1600 &sensor_dev_attr_temp2_auto_point1_temp.dev_attr.attr,
1601 &sensor_dev_attr_temp3_auto_point1_temp.dev_attr.attr,
1602 &sensor_dev_attr_temp1_auto_point1_temp_hyst.dev_attr.attr,
1603 &sensor_dev_attr_temp2_auto_point1_temp_hyst.dev_attr.attr,
1604 &sensor_dev_attr_temp3_auto_point1_temp_hyst.dev_attr.attr,
1605 &sensor_dev_attr_temp1_auto_point2_temp.dev_attr.attr,
1606 &sensor_dev_attr_temp2_auto_point2_temp.dev_attr.attr,
1607 &sensor_dev_attr_temp3_auto_point2_temp.dev_attr.attr,
1608 &sensor_dev_attr_temp1_crit.dev_attr.attr,
1609 &sensor_dev_attr_temp2_crit.dev_attr.attr,
1610 &sensor_dev_attr_temp3_crit.dev_attr.attr,
1611 &dev_attr_temp1_crit_enable.attr,
1612 &dev_attr_temp2_crit_enable.attr,
1613 &dev_attr_temp3_crit_enable.attr,
1614 &dev_attr_cpu0_vid.attr,
1616 &dev_attr_alarms.attr,
1617 &dev_attr_alarm_mask.attr,
1618 &dev_attr_gpio.attr,
1619 &dev_attr_gpio_mask.attr,
1620 &dev_attr_pwm1.attr,
1621 &dev_attr_pwm2.attr,
1622 &dev_attr_pwm3.attr,
1623 &dev_attr_pwm1_enable.attr,
1624 &dev_attr_pwm2_enable.attr,
1625 &dev_attr_pwm3_enable.attr,
1626 &dev_attr_temp1_auto_point1_pwm.attr,
1627 &dev_attr_temp2_auto_point1_pwm.attr,
1628 &dev_attr_temp3_auto_point1_pwm.attr,
1629 &dev_attr_temp1_auto_point2_pwm.attr,
1630 &dev_attr_temp2_auto_point2_pwm.attr,
1631 &dev_attr_temp3_auto_point2_pwm.attr,
1632 &dev_attr_analog_out.attr,
1636 static const struct attribute_group adm1026_group = {
1637 .attrs = adm1026_attributes,
1640 static int adm1026_detect(struct i2c_adapter *adapter, int address,
1643 int company, verstep;
1644 struct i2c_client *new_client;
1645 struct adm1026_data *data;
1647 const char *type_name = "";
1649 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
1650 /* We need to be able to do byte I/O */
1654 /* OK. For now, we presume we have a valid client. We now create the
1655 client structure, even though we cannot fill it completely yet.
1656 But it allows us to access adm1026_{read,write}_value. */
1658 if (!(data = kzalloc(sizeof(struct adm1026_data), GFP_KERNEL))) {
1663 new_client = &data->client;
1664 i2c_set_clientdata(new_client, data);
1665 new_client->addr = address;
1666 new_client->adapter = adapter;
1667 new_client->driver = &adm1026_driver;
1668 new_client->flags = 0;
1670 /* Now, we do the remaining detection. */
1672 company = adm1026_read_value(new_client, ADM1026_REG_COMPANY);
1673 verstep = adm1026_read_value(new_client, ADM1026_REG_VERSTEP);
1675 dev_dbg(&new_client->dev, "Detecting device at %d,0x%02x with"
1676 " COMPANY: 0x%02x and VERSTEP: 0x%02x\n",
1677 i2c_adapter_id(new_client->adapter), new_client->addr,
1680 /* If auto-detecting, Determine the chip type. */
1682 dev_dbg(&new_client->dev, "Autodetecting device at %d,0x%02x "
1683 "...\n", i2c_adapter_id(adapter), address);
1684 if (company == ADM1026_COMPANY_ANALOG_DEV
1685 && verstep == ADM1026_VERSTEP_ADM1026) {
1687 } else if (company == ADM1026_COMPANY_ANALOG_DEV
1688 && (verstep & 0xf0) == ADM1026_VERSTEP_GENERIC) {
1689 dev_err(&adapter->dev, ": Unrecognized stepping "
1690 "0x%02x. Defaulting to ADM1026.\n", verstep);
1692 } else if ((verstep & 0xf0) == ADM1026_VERSTEP_GENERIC) {
1693 dev_err(&adapter->dev, ": Found version/stepping "
1694 "0x%02x. Assuming generic ADM1026.\n",
1698 dev_dbg(&new_client->dev, ": Autodetection "
1700 /* Not an ADM1026 ... */
1701 if (kind == 0) { /* User used force=x,y */
1702 dev_err(&adapter->dev, "Generic ADM1026 not "
1703 "found at %d,0x%02x. Try "
1705 i2c_adapter_id(adapter), address);
1712 /* Fill in the chip specific driver values */
1715 type_name = "adm1026";
1718 type_name = "adm1026";
1721 dev_err(&adapter->dev, ": Internal error, invalid "
1722 "kind (%d)!\n", kind);
1726 strlcpy(new_client->name, type_name, I2C_NAME_SIZE);
1728 /* Fill in the remaining client fields */
1731 mutex_init(&data->update_lock);
1733 /* Tell the I2C layer a new client has arrived */
1734 if ((err = i2c_attach_client(new_client)))
1737 /* Set the VRM version */
1738 data->vrm = vid_which_vrm();
1740 /* Initialize the ADM1026 chip */
1741 adm1026_init_client(new_client);
1743 /* Register sysfs hooks */
1744 if ((err = sysfs_create_group(&new_client->dev.kobj, &adm1026_group)))
1747 data->hwmon_dev = hwmon_device_register(&new_client->dev);
1748 if (IS_ERR(data->hwmon_dev)) {
1749 err = PTR_ERR(data->hwmon_dev);
1755 /* Error out and cleanup code */
1757 sysfs_remove_group(&new_client->dev.kobj, &adm1026_group);
1759 i2c_detach_client(new_client);
1766 static int adm1026_detach_client(struct i2c_client *client)
1768 struct adm1026_data *data = i2c_get_clientdata(client);
1769 hwmon_device_unregister(data->hwmon_dev);
1770 sysfs_remove_group(&client->dev.kobj, &adm1026_group);
1771 i2c_detach_client(client);
1776 static int __init sm_adm1026_init(void)
1778 return i2c_add_driver(&adm1026_driver);
1781 static void __exit sm_adm1026_exit(void)
1783 i2c_del_driver(&adm1026_driver);
1786 MODULE_LICENSE("GPL");
1787 MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, "
1788 "Justin Thiessen <jthiessen@penguincomputing.com>");
1789 MODULE_DESCRIPTION("ADM1026 driver");
1791 module_init(sm_adm1026_init);
1792 module_exit(sm_adm1026_exit);