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[linux-2.6/kvm.git] / drivers / hwmon / adm1026.c
blob0531867484f417e7692d92b44066bdfc7c7758d8
1 /*
2 adm1026.c - Part of lm_sensors, Linux kernel modules for hardware
3 monitoring
4 Copyright (C) 2002, 2003 Philip Pokorny <ppokorny@penguincomputing.com>
5 Copyright (C) 2004 Justin Thiessen <jthiessen@penguincomputing.com>
6
7 Chip details at:
8
9 <http://www.onsemi.com/PowerSolutions/product.do?id=ADM1026>
10
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 2 of the License, or
14 (at your option) any later version.
15
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
20
21 You should have received a copy of the GNU General Public License
22 along with this program; if not, write to the Free Software
23 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 */
25
26 #include <linux/module.h>
27 #include <linux/init.h>
28 #include <linux/slab.h>
29 #include <linux/jiffies.h>
30 #include <linux/i2c.h>
31 #include <linux/hwmon.h>
32 #include <linux/hwmon-sysfs.h>
33 #include <linux/hwmon-vid.h>
34 #include <linux/err.h>
35 #include <linux/mutex.h>
36
37 /* Addresses to scan */
38 static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
39
40 static int gpio_input[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
41 -1, -1, -1, -1, -1, -1, -1, -1 };
42 static int gpio_output[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
43 -1, -1, -1, -1, -1, -1, -1, -1 };
44 static int gpio_inverted[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
45 -1, -1, -1, -1, -1, -1, -1, -1 };
46 static int gpio_normal[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
47 -1, -1, -1, -1, -1, -1, -1, -1 };
48 static int gpio_fan[8] = { -1, -1, -1, -1, -1, -1, -1, -1 };
49 module_param_array(gpio_input, int, NULL, 0);
50 MODULE_PARM_DESC(gpio_input, "List of GPIO pins (0-16) to program as inputs");
51 module_param_array(gpio_output, int, NULL, 0);
52 MODULE_PARM_DESC(gpio_output, "List of GPIO pins (0-16) to program as "
53 "outputs");
54 module_param_array(gpio_inverted, int, NULL, 0);
55 MODULE_PARM_DESC(gpio_inverted, "List of GPIO pins (0-16) to program as "
56 "inverted");
57 module_param_array(gpio_normal, int, NULL, 0);
58 MODULE_PARM_DESC(gpio_normal, "List of GPIO pins (0-16) to program as "
59 "normal/non-inverted");
60 module_param_array(gpio_fan, int, NULL, 0);
61 MODULE_PARM_DESC(gpio_fan, "List of GPIO pins (0-7) to program as fan tachs");
62
63 /* Many ADM1026 constants specified below */
64
65 /* The ADM1026 registers */
66 #define ADM1026_REG_CONFIG1 0x00
67 #define CFG1_MONITOR 0x01
68 #define CFG1_INT_ENABLE 0x02
69 #define CFG1_INT_CLEAR 0x04
70 #define CFG1_AIN8_9 0x08
71 #define CFG1_THERM_HOT 0x10
72 #define CFG1_DAC_AFC 0x20
73 #define CFG1_PWM_AFC 0x40
74 #define CFG1_RESET 0x80
75
76 #define ADM1026_REG_CONFIG2 0x01
77 /* CONFIG2 controls FAN0/GPIO0 through FAN7/GPIO7 */
78
79 #define ADM1026_REG_CONFIG3 0x07
80 #define CFG3_GPIO16_ENABLE 0x01
81 #define CFG3_CI_CLEAR 0x02
82 #define CFG3_VREF_250 0x04
83 #define CFG3_GPIO16_DIR 0x40
84 #define CFG3_GPIO16_POL 0x80
85
86 #define ADM1026_REG_E2CONFIG 0x13
87 #define E2CFG_READ 0x01
88 #define E2CFG_WRITE 0x02
89 #define E2CFG_ERASE 0x04
90 #define E2CFG_ROM 0x08
91 #define E2CFG_CLK_EXT 0x80
92
93 /* There are 10 general analog inputs and 7 dedicated inputs
94 * They are:
95 * 0 - 9 = AIN0 - AIN9
96 * 10 = Vbat
97 * 11 = 3.3V Standby
98 * 12 = 3.3V Main
99 * 13 = +5V
100 * 14 = Vccp (CPU core voltage)
101 * 15 = +12V
102 * 16 = -12V
103 */
104 static u16 ADM1026_REG_IN[] = {
105 0x30, 0x31, 0x32, 0x33, 0x34, 0x35,
106 0x36, 0x37, 0x27, 0x29, 0x26, 0x2a,
107 0x2b, 0x2c, 0x2d, 0x2e, 0x2f
108 };
109 static u16 ADM1026_REG_IN_MIN[] = {
110 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d,
111 0x5e, 0x5f, 0x6d, 0x49, 0x6b, 0x4a,
112 0x4b, 0x4c, 0x4d, 0x4e, 0x4f
113 };
114 static u16 ADM1026_REG_IN_MAX[] = {
115 0x50, 0x51, 0x52, 0x53, 0x54, 0x55,
116 0x56, 0x57, 0x6c, 0x41, 0x6a, 0x42,
117 0x43, 0x44, 0x45, 0x46, 0x47
118 };
119
120 /* Temperatures are:
121 * 0 - Internal
122 * 1 - External 1
123 * 2 - External 2
124 */
125 static u16 ADM1026_REG_TEMP[] = { 0x1f, 0x28, 0x29 };
126 static u16 ADM1026_REG_TEMP_MIN[] = { 0x69, 0x48, 0x49 };
127 static u16 ADM1026_REG_TEMP_MAX[] = { 0x68, 0x40, 0x41 };
128 static u16 ADM1026_REG_TEMP_TMIN[] = { 0x10, 0x11, 0x12 };
129 static u16 ADM1026_REG_TEMP_THERM[] = { 0x0d, 0x0e, 0x0f };
130 static u16 ADM1026_REG_TEMP_OFFSET[] = { 0x1e, 0x6e, 0x6f };
131
132 #define ADM1026_REG_FAN(nr) (0x38 + (nr))
133 #define ADM1026_REG_FAN_MIN(nr) (0x60 + (nr))
134 #define ADM1026_REG_FAN_DIV_0_3 0x02
135 #define ADM1026_REG_FAN_DIV_4_7 0x03
136
137 #define ADM1026_REG_DAC 0x04
138 #define ADM1026_REG_PWM 0x05
139
140 #define ADM1026_REG_GPIO_CFG_0_3 0x08
141 #define ADM1026_REG_GPIO_CFG_4_7 0x09
142 #define ADM1026_REG_GPIO_CFG_8_11 0x0a
143 #define ADM1026_REG_GPIO_CFG_12_15 0x0b
144 /* CFG_16 in REG_CFG3 */
145 #define ADM1026_REG_GPIO_STATUS_0_7 0x24
146 #define ADM1026_REG_GPIO_STATUS_8_15 0x25
147 /* STATUS_16 in REG_STATUS4 */
148 #define ADM1026_REG_GPIO_MASK_0_7 0x1c
149 #define ADM1026_REG_GPIO_MASK_8_15 0x1d
150 /* MASK_16 in REG_MASK4 */
151
152 #define ADM1026_REG_COMPANY 0x16
153 #define ADM1026_REG_VERSTEP 0x17
154 /* These are the recognized values for the above regs */
155 #define ADM1026_COMPANY_ANALOG_DEV 0x41
156 #define ADM1026_VERSTEP_GENERIC 0x40
157 #define ADM1026_VERSTEP_ADM1026 0x44
158
159 #define ADM1026_REG_MASK1 0x18
160 #define ADM1026_REG_MASK2 0x19
161 #define ADM1026_REG_MASK3 0x1a
162 #define ADM1026_REG_MASK4 0x1b
163
164 #define ADM1026_REG_STATUS1 0x20
165 #define ADM1026_REG_STATUS2 0x21
166 #define ADM1026_REG_STATUS3 0x22
167 #define ADM1026_REG_STATUS4 0x23
168
169 #define ADM1026_FAN_ACTIVATION_TEMP_HYST -6
170 #define ADM1026_FAN_CONTROL_TEMP_RANGE 20
171 #define ADM1026_PWM_MAX 255
172
173 /* Conversions. Rounding and limit checking is only done on the TO_REG
174 * variants. Note that you should be a bit careful with which arguments
175 * these macros are called: arguments may be evaluated more than once.
176 */
177
178 /* IN are scaled according to built-in resistors. These are the
179 * voltages corresponding to 3/4 of full scale (192 or 0xc0)
180 * NOTE: The -12V input needs an additional factor to account
181 * for the Vref pullup resistor.
182 * NEG12_OFFSET = SCALE * Vref / V-192 - Vref
183 * = 13875 * 2.50 / 1.875 - 2500
184 * = 16000
185 *
186 * The values in this table are based on Table II, page 15 of the
187 * datasheet.
188 */
189 static int adm1026_scaling[] = { /* .001 Volts */
190 2250, 2250, 2250, 2250, 2250, 2250,
191 1875, 1875, 1875, 1875, 3000, 3330,
192 3330, 4995, 2250, 12000, 13875
193 };
194 #define NEG12_OFFSET 16000
195 #define SCALE(val, from, to) (((val)*(to) + ((from)/2))/(from))
196 #define INS_TO_REG(n, val) (SENSORS_LIMIT(SCALE(val, adm1026_scaling[n], 192),\
197 0, 255))
198 #define INS_FROM_REG(n, val) (SCALE(val, 192, adm1026_scaling[n]))
199
200 /* FAN speed is measured using 22.5kHz clock and counts for 2 pulses
201 * and we assume a 2 pulse-per-rev fan tach signal
202 * 22500 kHz * 60 (sec/min) * 2 (pulse) / 2 (pulse/rev) == 1350000
203 */
204 #define FAN_TO_REG(val, div) ((val) <= 0 ? 0xff : \
205 SENSORS_LIMIT(1350000/((val)*(div)), 1, 254))
206 #define FAN_FROM_REG(val, div) ((val) == 0 ? -1:(val) == 0xff ? 0 : \
207 1350000/((val)*(div)))
208 #define DIV_FROM_REG(val) (1<<(val))
209 #define DIV_TO_REG(val) ((val) >= 8 ? 3 : (val) >= 4 ? 2 : (val) >= 2 ? 1 : 0)
210
211 /* Temperature is reported in 1 degC increments */
212 #define TEMP_TO_REG(val) (SENSORS_LIMIT(((val)+((val)<0 ? -500 : 500))/1000,\
213 -127, 127))
214 #define TEMP_FROM_REG(val) ((val) * 1000)
215 #define OFFSET_TO_REG(val) (SENSORS_LIMIT(((val)+((val)<0 ? -500 : 500))/1000,\
216 -127, 127))
217 #define OFFSET_FROM_REG(val) ((val) * 1000)
218
219 #define PWM_TO_REG(val) (SENSORS_LIMIT(val, 0, 255))
220 #define PWM_FROM_REG(val) (val)
221
222 #define PWM_MIN_TO_REG(val) ((val) & 0xf0)
223 #define PWM_MIN_FROM_REG(val) (((val) & 0xf0) + ((val) >> 4))
224
225 /* Analog output is a voltage, and scaled to millivolts. The datasheet
226 * indicates that the DAC could be used to drive the fans, but in our
227 * example board (Arima HDAMA) it isn't connected to the fans at all.
228 */
229 #define DAC_TO_REG(val) (SENSORS_LIMIT(((((val)*255)+500)/2500), 0, 255))
230 #define DAC_FROM_REG(val) (((val)*2500)/255)
231
232 /* Chip sampling rates
233 *
234 * Some sensors are not updated more frequently than once per second
235 * so it doesn't make sense to read them more often than that.
236 * We cache the results and return the saved data if the driver
237 * is called again before a second has elapsed.
238 *
239 * Also, there is significant configuration data for this chip
240 * So, we keep the config data up to date in the cache
241 * when it is written and only sample it once every 5 *minutes*
242 */
243 #define ADM1026_DATA_INTERVAL (1 * HZ)
244 #define ADM1026_CONFIG_INTERVAL (5 * 60 * HZ)
245
246 /* We allow for multiple chips in a single system.
247 *
248 * For each registered ADM1026, we need to keep state information
249 * at client->data. The adm1026_data structure is dynamically
250 * allocated, when a new client structure is allocated. */
251
252 struct pwm_data {
253 u8 pwm;
254 u8 enable;
255 u8 auto_pwm_min;
256 };
257
258 struct adm1026_data {
259 struct device *hwmon_dev;
260
261 struct mutex update_lock;
262 int valid; /* !=0 if following fields are valid */
263 unsigned long last_reading; /* In jiffies */
264 unsigned long last_config; /* In jiffies */
265
266 u8 in[17]; /* Register value */
267 u8 in_max[17]; /* Register value */
268 u8 in_min[17]; /* Register value */
269 s8 temp[3]; /* Register value */
270 s8 temp_min[3]; /* Register value */
271 s8 temp_max[3]; /* Register value */
272 s8 temp_tmin[3]; /* Register value */
273 s8 temp_crit[3]; /* Register value */
274 s8 temp_offset[3]; /* Register value */
275 u8 fan[8]; /* Register value */
276 u8 fan_min[8]; /* Register value */
277 u8 fan_div[8]; /* Decoded value */
278 struct pwm_data pwm1; /* Pwm control values */
279 u8 vrm; /* VRM version */
280 u8 analog_out; /* Register value (DAC) */
281 long alarms; /* Register encoding, combined */
282 long alarm_mask; /* Register encoding, combined */
283 long gpio; /* Register encoding, combined */
284 long gpio_mask; /* Register encoding, combined */
285 u8 gpio_config[17]; /* Decoded value */
286 u8 config1; /* Register value */
287 u8 config2; /* Register value */
288 u8 config3; /* Register value */
289 };
290
291 static int adm1026_probe(struct i2c_client *client,
292 const struct i2c_device_id *id);
293 static int adm1026_detect(struct i2c_client *client,
294 struct i2c_board_info *info);
295 static int adm1026_remove(struct i2c_client *client);
296 static int adm1026_read_value(struct i2c_client *client, u8 reg);
297 static int adm1026_write_value(struct i2c_client *client, u8 reg, int value);
298 static void adm1026_print_gpio(struct i2c_client *client);
299 static void adm1026_fixup_gpio(struct i2c_client *client);
300 static struct adm1026_data *adm1026_update_device(struct device *dev);
301 static void adm1026_init_client(struct i2c_client *client);
302
303
304 static const struct i2c_device_id adm1026_id[] = {
305 { "adm1026", 0 },
306 { }
307 };
308 MODULE_DEVICE_TABLE(i2c, adm1026_id);
309
310 static struct i2c_driver adm1026_driver = {
311 .class = I2C_CLASS_HWMON,
312 .driver = {
313 .name = "adm1026",
314 },
315 .probe = adm1026_probe,
316 .remove = adm1026_remove,
317 .id_table = adm1026_id,
318 .detect = adm1026_detect,
319 .address_list = normal_i2c,
320 };
321
322 static int adm1026_read_value(struct i2c_client *client, u8 reg)
323 {
324 int res;
325
326 if (reg < 0x80) {
327 /* "RAM" locations */
328 res = i2c_smbus_read_byte_data(client, reg) & 0xff;
329 } else {
330 /* EEPROM, do nothing */
331 res = 0;
332 }
333 return res;
334 }
335
336 static int adm1026_write_value(struct i2c_client *client, u8 reg, int value)
337 {
338 int res;
339
340 if (reg < 0x80) {
341 /* "RAM" locations */
342 res = i2c_smbus_write_byte_data(client, reg, value);
343 } else {
344 /* EEPROM, do nothing */
345 res = 0;
346 }
347 return res;
348 }
349
350 static void adm1026_init_client(struct i2c_client *client)
351 {
352 int value, i;
353 struct adm1026_data *data = i2c_get_clientdata(client);
354
355 dev_dbg(&client->dev, "Initializing device\n");
356 /* Read chip config */
357 data->config1 = adm1026_read_value(client, ADM1026_REG_CONFIG1);
358 data->config2 = adm1026_read_value(client, ADM1026_REG_CONFIG2);
359 data->config3 = adm1026_read_value(client, ADM1026_REG_CONFIG3);
360
361 /* Inform user of chip config */
362 dev_dbg(&client->dev, "ADM1026_REG_CONFIG1 is: 0x%02x\n",
363 data->config1);
364 if ((data->config1 & CFG1_MONITOR) == 0) {
365 dev_dbg(&client->dev, "Monitoring not currently "
366 "enabled.\n");
367 }
368 if (data->config1 & CFG1_INT_ENABLE) {
369 dev_dbg(&client->dev, "SMBALERT interrupts are "
370 "enabled.\n");
371 }
372 if (data->config1 & CFG1_AIN8_9) {
373 dev_dbg(&client->dev, "in8 and in9 enabled. "
374 "temp3 disabled.\n");
375 } else {
376 dev_dbg(&client->dev, "temp3 enabled. in8 and "
377 "in9 disabled.\n");
378 }
379 if (data->config1 & CFG1_THERM_HOT) {
380 dev_dbg(&client->dev, "Automatic THERM, PWM, "
381 "and temp limits enabled.\n");
382 }
383
384 if (data->config3 & CFG3_GPIO16_ENABLE) {
385 dev_dbg(&client->dev, "GPIO16 enabled. THERM "
386 "pin disabled.\n");
387 } else {
388 dev_dbg(&client->dev, "THERM pin enabled. "
389 "GPIO16 disabled.\n");
390 }
391 if (data->config3 & CFG3_VREF_250) {
392 dev_dbg(&client->dev, "Vref is 2.50 Volts.\n");
393 } else {
394 dev_dbg(&client->dev, "Vref is 1.82 Volts.\n");
395 }
396 /* Read and pick apart the existing GPIO configuration */
397 value = 0;
398 for (i = 0;i <= 15;++i) {
399 if ((i & 0x03) == 0) {
400 value = adm1026_read_value(client,
401 ADM1026_REG_GPIO_CFG_0_3 + i/4);
402 }
403 data->gpio_config[i] = value & 0x03;
404 value >>= 2;
405 }
406 data->gpio_config[16] = (data->config3 >> 6) & 0x03;
407
408 /* ... and then print it */
409 adm1026_print_gpio(client);
410
411 /* If the user asks us to reprogram the GPIO config, then
412 * do it now.
413 */
414 if (gpio_input[0] != -1 || gpio_output[0] != -1
415 || gpio_inverted[0] != -1 || gpio_normal[0] != -1
416 || gpio_fan[0] != -1) {
417 adm1026_fixup_gpio(client);
418 }
419
420 /* WE INTENTIONALLY make no changes to the limits,
421 * offsets, pwms, fans and zones. If they were
422 * configured, we don't want to mess with them.
423 * If they weren't, the default is 100% PWM, no
424 * control and will suffice until 'sensors -s'
425 * can be run by the user. We DO set the default
426 * value for pwm1.auto_pwm_min to its maximum
427 * so that enabling automatic pwm fan control
428 * without first setting a value for pwm1.auto_pwm_min
429 * will not result in potentially dangerous fan speed decrease.
430 */
431 data->pwm1.auto_pwm_min=255;
432 /* Start monitoring */
433 value = adm1026_read_value(client, ADM1026_REG_CONFIG1);
434 /* Set MONITOR, clear interrupt acknowledge and s/w reset */
435 value = (value | CFG1_MONITOR) & (~CFG1_INT_CLEAR & ~CFG1_RESET);
436 dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value);
437 data->config1 = value;
438 adm1026_write_value(client, ADM1026_REG_CONFIG1, value);
439
440 /* initialize fan_div[] to hardware defaults */
441 value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3) |
442 (adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7) << 8);
443 for (i = 0;i <= 7;++i) {
444 data->fan_div[i] = DIV_FROM_REG(value & 0x03);
445 value >>= 2;
446 }
447 }
448
449 static void adm1026_print_gpio(struct i2c_client *client)
450 {
451 struct adm1026_data *data = i2c_get_clientdata(client);
452 int i;
453
454 dev_dbg(&client->dev, "GPIO config is:\n");
455 for (i = 0;i <= 7;++i) {
456 if (data->config2 & (1 << i)) {
457 dev_dbg(&client->dev, "\t%sGP%s%d\n",
458 data->gpio_config[i] & 0x02 ? "" : "!",
459 data->gpio_config[i] & 0x01 ? "OUT" : "IN",
460 i);
461 } else {
462 dev_dbg(&client->dev, "\tFAN%d\n", i);
463 }
464 }
465 for (i = 8;i <= 15;++i) {
466 dev_dbg(&client->dev, "\t%sGP%s%d\n",
467 data->gpio_config[i] & 0x02 ? "" : "!",
468 data->gpio_config[i] & 0x01 ? "OUT" : "IN",
469 i);
470 }
471 if (data->config3 & CFG3_GPIO16_ENABLE) {
472 dev_dbg(&client->dev, "\t%sGP%s16\n",
473 data->gpio_config[16] & 0x02 ? "" : "!",
474 data->gpio_config[16] & 0x01 ? "OUT" : "IN");
475 } else {
476 /* GPIO16 is THERM */
477 dev_dbg(&client->dev, "\tTHERM\n");
478 }
479 }
480
481 static void adm1026_fixup_gpio(struct i2c_client *client)
482 {
483 struct adm1026_data *data = i2c_get_clientdata(client);
484 int i;
485 int value;
486
487 /* Make the changes requested. */
488 /* We may need to unlock/stop monitoring or soft-reset the
489 * chip before we can make changes. This hasn't been
490 * tested much. FIXME
491 */
492
493 /* Make outputs */
494 for (i = 0;i <= 16;++i) {
495 if (gpio_output[i] >= 0 && gpio_output[i] <= 16) {
496 data->gpio_config[gpio_output[i]] |= 0x01;
497 }
498 /* if GPIO0-7 is output, it isn't a FAN tach */
499 if (gpio_output[i] >= 0 && gpio_output[i] <= 7) {
500 data->config2 |= 1 << gpio_output[i];
501 }
502 }
503
504 /* Input overrides output */
505 for (i = 0;i <= 16;++i) {
506 if (gpio_input[i] >= 0 && gpio_input[i] <= 16) {
507 data->gpio_config[gpio_input[i]] &= ~ 0x01;
508 }
509 /* if GPIO0-7 is input, it isn't a FAN tach */
510 if (gpio_input[i] >= 0 && gpio_input[i] <= 7) {
511 data->config2 |= 1 << gpio_input[i];
512 }
513 }
514
515 /* Inverted */
516 for (i = 0;i <= 16;++i) {
517 if (gpio_inverted[i] >= 0 && gpio_inverted[i] <= 16) {
518 data->gpio_config[gpio_inverted[i]] &= ~ 0x02;
519 }
520 }
521
522 /* Normal overrides inverted */
523 for (i = 0;i <= 16;++i) {
524 if (gpio_normal[i] >= 0 && gpio_normal[i] <= 16) {
525 data->gpio_config[gpio_normal[i]] |= 0x02;
526 }
527 }
528
529 /* Fan overrides input and output */
530 for (i = 0;i <= 7;++i) {
531 if (gpio_fan[i] >= 0 && gpio_fan[i] <= 7) {
532 data->config2 &= ~(1 << gpio_fan[i]);
533 }
534 }
535
536 /* Write new configs to registers */
537 adm1026_write_value(client, ADM1026_REG_CONFIG2, data->config2);
538 data->config3 = (data->config3 & 0x3f)
539 | ((data->gpio_config[16] & 0x03) << 6);
540 adm1026_write_value(client, ADM1026_REG_CONFIG3, data->config3);
541 for (i = 15, value = 0;i >= 0;--i) {
542 value <<= 2;
543 value |= data->gpio_config[i] & 0x03;
544 if ((i & 0x03) == 0) {
545 adm1026_write_value(client,
546 ADM1026_REG_GPIO_CFG_0_3 + i/4,
547 value);
548 value = 0;
549 }
550 }
551
552 /* Print the new config */
553 adm1026_print_gpio(client);
554 }
555
556
557 static struct adm1026_data *adm1026_update_device(struct device *dev)
558 {
559 struct i2c_client *client = to_i2c_client(dev);
560 struct adm1026_data *data = i2c_get_clientdata(client);
561 int i;
562 long value, alarms, gpio;
563
564 mutex_lock(&data->update_lock);
565 if (!data->valid
566 || time_after(jiffies, data->last_reading + ADM1026_DATA_INTERVAL)) {
567 /* Things that change quickly */
568 dev_dbg(&client->dev, "Reading sensor values\n");
569 for (i = 0;i <= 16;++i) {
570 data->in[i] =
571 adm1026_read_value(client, ADM1026_REG_IN[i]);
572 }
573
574 for (i = 0;i <= 7;++i) {
575 data->fan[i] =
576 adm1026_read_value(client, ADM1026_REG_FAN(i));
577 }
578
579 for (i = 0;i <= 2;++i) {
580 /* NOTE: temp[] is s8 and we assume 2's complement
581 * "conversion" in the assignment */
582 data->temp[i] =
583 adm1026_read_value(client, ADM1026_REG_TEMP[i]);
584 }
585
586 data->pwm1.pwm = adm1026_read_value(client,
587 ADM1026_REG_PWM);
588 data->analog_out = adm1026_read_value(client,
589 ADM1026_REG_DAC);
590 /* GPIO16 is MSbit of alarms, move it to gpio */
591 alarms = adm1026_read_value(client, ADM1026_REG_STATUS4);
592 gpio = alarms & 0x80 ? 0x0100 : 0; /* GPIO16 */
593 alarms &= 0x7f;
594 alarms <<= 8;
595 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS3);
596 alarms <<= 8;
597 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS2);
598 alarms <<= 8;
599 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS1);
600 data->alarms = alarms;
601
602 /* Read the GPIO values */
603 gpio |= adm1026_read_value(client,
604 ADM1026_REG_GPIO_STATUS_8_15);
605 gpio <<= 8;
606 gpio |= adm1026_read_value(client,
607 ADM1026_REG_GPIO_STATUS_0_7);
608 data->gpio = gpio;
609
610 data->last_reading = jiffies;
611 }; /* last_reading */
612
613 if (!data->valid ||
614 time_after(jiffies, data->last_config + ADM1026_CONFIG_INTERVAL)) {
615 /* Things that don't change often */
616 dev_dbg(&client->dev, "Reading config values\n");
617 for (i = 0;i <= 16;++i) {
618 data->in_min[i] = adm1026_read_value(client,
619 ADM1026_REG_IN_MIN[i]);
620 data->in_max[i] = adm1026_read_value(client,
621 ADM1026_REG_IN_MAX[i]);
622 }
623
624 value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3)
625 | (adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7)
626 << 8);
627 for (i = 0;i <= 7;++i) {
628 data->fan_min[i] = adm1026_read_value(client,
629 ADM1026_REG_FAN_MIN(i));
630 data->fan_div[i] = DIV_FROM_REG(value & 0x03);
631 value >>= 2;
632 }
633
634 for (i = 0; i <= 2; ++i) {
635 /* NOTE: temp_xxx[] are s8 and we assume 2's
636 * complement "conversion" in the assignment
637 */
638 data->temp_min[i] = adm1026_read_value(client,
639 ADM1026_REG_TEMP_MIN[i]);
640 data->temp_max[i] = adm1026_read_value(client,
641 ADM1026_REG_TEMP_MAX[i]);
642 data->temp_tmin[i] = adm1026_read_value(client,
643 ADM1026_REG_TEMP_TMIN[i]);
644 data->temp_crit[i] = adm1026_read_value(client,
645 ADM1026_REG_TEMP_THERM[i]);
646 data->temp_offset[i] = adm1026_read_value(client,
647 ADM1026_REG_TEMP_OFFSET[i]);
648 }
649
650 /* Read the STATUS/alarm masks */
651 alarms = adm1026_read_value(client, ADM1026_REG_MASK4);
652 gpio = alarms & 0x80 ? 0x0100 : 0; /* GPIO16 */
653 alarms = (alarms & 0x7f) << 8;
654 alarms |= adm1026_read_value(client, ADM1026_REG_MASK3);
655 alarms <<= 8;
656 alarms |= adm1026_read_value(client, ADM1026_REG_MASK2);
657 alarms <<= 8;
658 alarms |= adm1026_read_value(client, ADM1026_REG_MASK1);
659 data->alarm_mask = alarms;
660
661 /* Read the GPIO values */
662 gpio |= adm1026_read_value(client,
663 ADM1026_REG_GPIO_MASK_8_15);
664 gpio <<= 8;
665 gpio |= adm1026_read_value(client, ADM1026_REG_GPIO_MASK_0_7);
666 data->gpio_mask = gpio;
667
668 /* Read various values from CONFIG1 */
669 data->config1 = adm1026_read_value(client,
670 ADM1026_REG_CONFIG1);
671 if (data->config1 & CFG1_PWM_AFC) {
672 data->pwm1.enable = 2;
673 data->pwm1.auto_pwm_min =
674 PWM_MIN_FROM_REG(data->pwm1.pwm);
675 }
676 /* Read the GPIO config */
677 data->config2 = adm1026_read_value(client,
678 ADM1026_REG_CONFIG2);
679 data->config3 = adm1026_read_value(client,
680 ADM1026_REG_CONFIG3);
681 data->gpio_config[16] = (data->config3 >> 6) & 0x03;
682
683 value = 0;
684 for (i = 0;i <= 15;++i) {
685 if ((i & 0x03) == 0) {
686 value = adm1026_read_value(client,
687 ADM1026_REG_GPIO_CFG_0_3 + i/4);
688 }
689 data->gpio_config[i] = value & 0x03;
690 value >>= 2;
691 }
692
693 data->last_config = jiffies;
694 }; /* last_config */
695
696 data->valid = 1;
697 mutex_unlock(&data->update_lock);
698 return data;
699 }
700
701 static ssize_t show_in(struct device *dev, struct device_attribute *attr,
702 char *buf)
703 {
704 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
705 int nr = sensor_attr->index;
706 struct adm1026_data *data = adm1026_update_device(dev);
707 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in[nr]));
708 }
709 static ssize_t show_in_min(struct device *dev, struct device_attribute *attr,
710 char *buf)
711 {
712 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
713 int nr = sensor_attr->index;
714 struct adm1026_data *data = adm1026_update_device(dev);
715 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_min[nr]));
716 }
717 static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
718 const char *buf, size_t count)
719 {
720 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
721 int nr = sensor_attr->index;
722 struct i2c_client *client = to_i2c_client(dev);
723 struct adm1026_data *data = i2c_get_clientdata(client);
724 int val = simple_strtol(buf, NULL, 10);
725
726 mutex_lock(&data->update_lock);
727 data->in_min[nr] = INS_TO_REG(nr, val);
728 adm1026_write_value(client, ADM1026_REG_IN_MIN[nr], data->in_min[nr]);
729 mutex_unlock(&data->update_lock);
730 return count;
731 }
732 static ssize_t show_in_max(struct device *dev, struct device_attribute *attr,
733 char *buf)
734 {
735 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
736 int nr = sensor_attr->index;
737 struct adm1026_data *data = adm1026_update_device(dev);
738 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_max[nr]));
739 }
740 static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
741 const char *buf, size_t count)
742 {
743 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
744 int nr = sensor_attr->index;
745 struct i2c_client *client = to_i2c_client(dev);
746 struct adm1026_data *data = i2c_get_clientdata(client);
747 int val = simple_strtol(buf, NULL, 10);
748
749 mutex_lock(&data->update_lock);
750 data->in_max[nr] = INS_TO_REG(nr, val);
751 adm1026_write_value(client, ADM1026_REG_IN_MAX[nr], data->in_max[nr]);
752 mutex_unlock(&data->update_lock);
753 return count;
754 }
755
756 #define in_reg(offset) \
757 static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in, \
758 NULL, offset); \
759 static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \
760 show_in_min, set_in_min, offset); \
761 static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \
762 show_in_max, set_in_max, offset);
763
764
765 in_reg(0);
766 in_reg(1);
767 in_reg(2);
768 in_reg(3);
769 in_reg(4);
770 in_reg(5);
771 in_reg(6);
772 in_reg(7);
773 in_reg(8);
774 in_reg(9);
775 in_reg(10);
776 in_reg(11);
777 in_reg(12);
778 in_reg(13);
779 in_reg(14);
780 in_reg(15);
781
782 static ssize_t show_in16(struct device *dev, struct device_attribute *attr, char *buf)
783 {
784 struct adm1026_data *data = adm1026_update_device(dev);
785 return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in[16]) -
786 NEG12_OFFSET);
787 }
788 static ssize_t show_in16_min(struct device *dev, struct device_attribute *attr, char *buf)
789 {
790 struct adm1026_data *data = adm1026_update_device(dev);
791 return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in_min[16])
792 - NEG12_OFFSET);
793 }
794 static ssize_t set_in16_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
795 {
796 struct i2c_client *client = to_i2c_client(dev);
797 struct adm1026_data *data = i2c_get_clientdata(client);
798 int val = simple_strtol(buf, NULL, 10);
799
800 mutex_lock(&data->update_lock);
801 data->in_min[16] = INS_TO_REG(16, val + NEG12_OFFSET);
802 adm1026_write_value(client, ADM1026_REG_IN_MIN[16], data->in_min[16]);
803 mutex_unlock(&data->update_lock);
804 return count;
805 }
806 static ssize_t show_in16_max(struct device *dev, struct device_attribute *attr, char *buf)
807 {
808 struct adm1026_data *data = adm1026_update_device(dev);
809 return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in_max[16])
810 - NEG12_OFFSET);
811 }
812 static ssize_t set_in16_max(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
813 {
814 struct i2c_client *client = to_i2c_client(dev);
815 struct adm1026_data *data = i2c_get_clientdata(client);
816 int val = simple_strtol(buf, NULL, 10);
817
818 mutex_lock(&data->update_lock);
819 data->in_max[16] = INS_TO_REG(16, val+NEG12_OFFSET);
820 adm1026_write_value(client, ADM1026_REG_IN_MAX[16], data->in_max[16]);
821 mutex_unlock(&data->update_lock);
822 return count;
823 }
824
825 static SENSOR_DEVICE_ATTR(in16_input, S_IRUGO, show_in16, NULL, 16);
826 static SENSOR_DEVICE_ATTR(in16_min, S_IRUGO | S_IWUSR, show_in16_min, set_in16_min, 16);
827 static SENSOR_DEVICE_ATTR(in16_max, S_IRUGO | S_IWUSR, show_in16_max, set_in16_max, 16);
828
829
830
831
832 /* Now add fan read/write functions */
833
834 static ssize_t show_fan(struct device *dev, struct device_attribute *attr,
835 char *buf)
836 {
837 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
838 int nr = sensor_attr->index;
839 struct adm1026_data *data = adm1026_update_device(dev);
840 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr],
841 data->fan_div[nr]));
842 }
843 static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr,
844 char *buf)
845 {
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_min[nr],
850 data->fan_div[nr]));
851 }
852 static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
853 const char *buf, size_t count)
854 {
855 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
856 int nr = sensor_attr->index;
857 struct i2c_client *client = to_i2c_client(dev);
858 struct adm1026_data *data = i2c_get_clientdata(client);
859 int val = simple_strtol(buf, NULL, 10);
860
861 mutex_lock(&data->update_lock);
862 data->fan_min[nr] = FAN_TO_REG(val, data->fan_div[nr]);
863 adm1026_write_value(client, ADM1026_REG_FAN_MIN(nr),
864 data->fan_min[nr]);
865 mutex_unlock(&data->update_lock);
866 return count;
867 }
868
869 #define fan_offset(offset) \
870 static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan, NULL, \
871 offset - 1); \
872 static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
873 show_fan_min, set_fan_min, offset - 1);
874
875 fan_offset(1);
876 fan_offset(2);
877 fan_offset(3);
878 fan_offset(4);
879 fan_offset(5);
880 fan_offset(6);
881 fan_offset(7);
882 fan_offset(8);
883
884 /* Adjust fan_min to account for new fan divisor */
885 static void fixup_fan_min(struct device *dev, int fan, int old_div)
886 {
887 struct i2c_client *client = to_i2c_client(dev);
888 struct adm1026_data *data = i2c_get_clientdata(client);
889 int new_min;
890 int new_div = data->fan_div[fan];
891
892 /* 0 and 0xff are special. Don't adjust them */
893 if (data->fan_min[fan] == 0 || data->fan_min[fan] == 0xff) {
894 return;
895 }
896
897 new_min = data->fan_min[fan] * old_div / new_div;
898 new_min = SENSORS_LIMIT(new_min, 1, 254);
899 data->fan_min[fan] = new_min;
900 adm1026_write_value(client, ADM1026_REG_FAN_MIN(fan), new_min);
901 }
902
903 /* Now add fan_div read/write functions */
904 static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr,
905 char *buf)
906 {
907 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
908 int nr = sensor_attr->index;
909 struct adm1026_data *data = adm1026_update_device(dev);
910 return sprintf(buf, "%d\n", data->fan_div[nr]);
911 }
912 static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
913 const char *buf, size_t count)
914 {
915 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
916 int nr = sensor_attr->index;
917 struct i2c_client *client = to_i2c_client(dev);
918 struct adm1026_data *data = i2c_get_clientdata(client);
919 int val, orig_div, new_div;
920
921 val = simple_strtol(buf, NULL, 10);
922 new_div = DIV_TO_REG(val);
923
924 mutex_lock(&data->update_lock);
925 orig_div = data->fan_div[nr];
926 data->fan_div[nr] = DIV_FROM_REG(new_div);
927
928 if (nr < 4) { /* 0 <= nr < 4 */
929 adm1026_write_value(client, ADM1026_REG_FAN_DIV_0_3,
930 (DIV_TO_REG(data->fan_div[0]) << 0) |
931 (DIV_TO_REG(data->fan_div[1]) << 2) |
932 (DIV_TO_REG(data->fan_div[2]) << 4) |
933 (DIV_TO_REG(data->fan_div[3]) << 6));
934 } else { /* 3 < nr < 8 */
935 adm1026_write_value(client, ADM1026_REG_FAN_DIV_4_7,
936 (DIV_TO_REG(data->fan_div[4]) << 0) |
937 (DIV_TO_REG(data->fan_div[5]) << 2) |
938 (DIV_TO_REG(data->fan_div[6]) << 4) |
939 (DIV_TO_REG(data->fan_div[7]) << 6));
940 }
941
942 if (data->fan_div[nr] != orig_div) {
943 fixup_fan_min(dev, nr, orig_div);
944 }
945 mutex_unlock(&data->update_lock);
946 return count;
947 }
948
949 #define fan_offset_div(offset) \
950 static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \
951 show_fan_div, set_fan_div, offset - 1);
952
953 fan_offset_div(1);
954 fan_offset_div(2);
955 fan_offset_div(3);
956 fan_offset_div(4);
957 fan_offset_div(5);
958 fan_offset_div(6);
959 fan_offset_div(7);
960 fan_offset_div(8);
961
962 /* Temps */
963 static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
964 char *buf)
965 {
966 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
967 int nr = sensor_attr->index;
968 struct adm1026_data *data = adm1026_update_device(dev);
969 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr]));
970 }
971 static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr,
972 char *buf)
973 {
974 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
975 int nr = sensor_attr->index;
976 struct adm1026_data *data = adm1026_update_device(dev);
977 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr]));
978 }
979 static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
980 const char *buf, size_t count)
981 {
982 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
983 int nr = sensor_attr->index;
984 struct i2c_client *client = to_i2c_client(dev);
985 struct adm1026_data *data = i2c_get_clientdata(client);
986 int val = simple_strtol(buf, NULL, 10);
987
988 mutex_lock(&data->update_lock);
989 data->temp_min[nr] = TEMP_TO_REG(val);
990 adm1026_write_value(client, ADM1026_REG_TEMP_MIN[nr],
991 data->temp_min[nr]);
992 mutex_unlock(&data->update_lock);
993 return count;
994 }
995 static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr,
996 char *buf)
997 {
998 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
999 int nr = sensor_attr->index;
1000 struct adm1026_data *data = adm1026_update_device(dev);
1001 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr]));
1002 }
1003 static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
1004 const char *buf, size_t count)
1005 {
1006 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1007 int nr = sensor_attr->index;
1008 struct i2c_client *client = to_i2c_client(dev);
1009 struct adm1026_data *data = i2c_get_clientdata(client);
1010 int val = simple_strtol(buf, NULL, 10);
1011
1012 mutex_lock(&data->update_lock);
1013 data->temp_max[nr] = TEMP_TO_REG(val);
1014 adm1026_write_value(client, ADM1026_REG_TEMP_MAX[nr],
1015 data->temp_max[nr]);
1016 mutex_unlock(&data->update_lock);
1017 return count;
1018 }
1019
1020 #define temp_reg(offset) \
1021 static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp, \
1022 NULL, offset - 1); \
1023 static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \
1024 show_temp_min, set_temp_min, offset - 1); \
1025 static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \
1026 show_temp_max, set_temp_max, offset - 1);
1027
1028
1029 temp_reg(1);
1030 temp_reg(2);
1031 temp_reg(3);
1032
1033 static ssize_t show_temp_offset(struct device *dev,
1034 struct device_attribute *attr, char *buf)
1035 {
1036 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1037 int nr = sensor_attr->index;
1038 struct adm1026_data *data = adm1026_update_device(dev);
1039 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_offset[nr]));
1040 }
1041 static ssize_t set_temp_offset(struct device *dev,
1042 struct device_attribute *attr, const char *buf,
1043 size_t count)
1044 {
1045 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1046 int nr = sensor_attr->index;
1047 struct i2c_client *client = to_i2c_client(dev);
1048 struct adm1026_data *data = i2c_get_clientdata(client);
1049 int val = simple_strtol(buf, NULL, 10);
1050
1051 mutex_lock(&data->update_lock);
1052 data->temp_offset[nr] = TEMP_TO_REG(val);
1053 adm1026_write_value(client, ADM1026_REG_TEMP_OFFSET[nr],
1054 data->temp_offset[nr]);
1055 mutex_unlock(&data->update_lock);
1056 return count;
1057 }
1058
1059 #define temp_offset_reg(offset) \
1060 static SENSOR_DEVICE_ATTR(temp##offset##_offset, S_IRUGO | S_IWUSR, \
1061 show_temp_offset, set_temp_offset, offset - 1);
1062
1063 temp_offset_reg(1);
1064 temp_offset_reg(2);
1065 temp_offset_reg(3);
1066
1067 static ssize_t show_temp_auto_point1_temp_hyst(struct device *dev,
1068 struct device_attribute *attr, char *buf)
1069 {
1070 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1071 int nr = sensor_attr->index;
1072 struct adm1026_data *data = adm1026_update_device(dev);
1073 return sprintf(buf, "%d\n", TEMP_FROM_REG(
1074 ADM1026_FAN_ACTIVATION_TEMP_HYST + data->temp_tmin[nr]));
1075 }
1076 static ssize_t show_temp_auto_point2_temp(struct device *dev,
1077 struct device_attribute *attr, char *buf)
1078 {
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(data->temp_tmin[nr] +
1083 ADM1026_FAN_CONTROL_TEMP_RANGE));
1084 }
1085 static ssize_t show_temp_auto_point1_temp(struct device *dev,
1086 struct device_attribute *attr, char *buf)
1087 {
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 }
1093 static ssize_t set_temp_auto_point1_temp(struct device *dev,
1094 struct device_attribute *attr, const char *buf, size_t count)
1095 {
1096 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1097 int nr = sensor_attr->index;
1098 struct i2c_client *client = to_i2c_client(dev);
1099 struct adm1026_data *data = i2c_get_clientdata(client);
1100 int val = simple_strtol(buf, NULL, 10);
1101
1102 mutex_lock(&data->update_lock);
1103 data->temp_tmin[nr] = TEMP_TO_REG(val);
1104 adm1026_write_value(client, ADM1026_REG_TEMP_TMIN[nr],
1105 data->temp_tmin[nr]);
1106 mutex_unlock(&data->update_lock);
1107 return count;
1108 }
1109
1110 #define temp_auto_point(offset) \
1111 static SENSOR_DEVICE_ATTR(temp##offset##_auto_point1_temp, \
1112 S_IRUGO | S_IWUSR, show_temp_auto_point1_temp, \
1113 set_temp_auto_point1_temp, offset - 1); \
1114 static SENSOR_DEVICE_ATTR(temp##offset##_auto_point1_temp_hyst, S_IRUGO,\
1115 show_temp_auto_point1_temp_hyst, NULL, offset - 1); \
1116 static SENSOR_DEVICE_ATTR(temp##offset##_auto_point2_temp, S_IRUGO, \
1117 show_temp_auto_point2_temp, NULL, offset - 1);
1118
1119 temp_auto_point(1);
1120 temp_auto_point(2);
1121 temp_auto_point(3);
1122
1123 static ssize_t show_temp_crit_enable(struct device *dev,
1124 struct device_attribute *attr, char *buf)
1125 {
1126 struct adm1026_data *data = adm1026_update_device(dev);
1127 return sprintf(buf, "%d\n", (data->config1 & CFG1_THERM_HOT) >> 4);
1128 }
1129 static ssize_t set_temp_crit_enable(struct device *dev,
1130 struct device_attribute *attr, const char *buf, size_t count)
1131 {
1132 struct i2c_client *client = to_i2c_client(dev);
1133 struct adm1026_data *data = i2c_get_clientdata(client);
1134 int val = simple_strtol(buf, NULL, 10);
1135
1136 if ((val == 1) || (val==0)) {
1137 mutex_lock(&data->update_lock);
1138 data->config1 = (data->config1 & ~CFG1_THERM_HOT) | (val << 4);
1139 adm1026_write_value(client, ADM1026_REG_CONFIG1,
1140 data->config1);
1141 mutex_unlock(&data->update_lock);
1142 }
1143 return count;
1144 }
1145
1146 #define temp_crit_enable(offset) \
1147 static DEVICE_ATTR(temp##offset##_crit_enable, S_IRUGO | S_IWUSR, \
1148 show_temp_crit_enable, set_temp_crit_enable);
1149
1150 temp_crit_enable(1);
1151 temp_crit_enable(2);
1152 temp_crit_enable(3);
1153
1154 static ssize_t show_temp_crit(struct device *dev,
1155 struct device_attribute *attr, char *buf)
1156 {
1157 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1158 int nr = sensor_attr->index;
1159 struct adm1026_data *data = adm1026_update_device(dev);
1160 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[nr]));
1161 }
1162 static ssize_t set_temp_crit(struct device *dev, struct device_attribute *attr,
1163 const char *buf, size_t count)
1164 {
1165 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1166 int nr = sensor_attr->index;
1167 struct i2c_client *client = to_i2c_client(dev);
1168 struct adm1026_data *data = i2c_get_clientdata(client);
1169 int val = simple_strtol(buf, NULL, 10);
1170
1171 mutex_lock(&data->update_lock);
1172 data->temp_crit[nr] = TEMP_TO_REG(val);
1173 adm1026_write_value(client, ADM1026_REG_TEMP_THERM[nr],
1174 data->temp_crit[nr]);
1175 mutex_unlock(&data->update_lock);
1176 return count;
1177 }
1178
1179 #define temp_crit_reg(offset) \
1180 static SENSOR_DEVICE_ATTR(temp##offset##_crit, S_IRUGO | S_IWUSR, \
1181 show_temp_crit, set_temp_crit, offset - 1);
1182
1183 temp_crit_reg(1);
1184 temp_crit_reg(2);
1185 temp_crit_reg(3);
1186
1187 static ssize_t show_analog_out_reg(struct device *dev, struct device_attribute *attr, char *buf)
1188 {
1189 struct adm1026_data *data = adm1026_update_device(dev);
1190 return sprintf(buf, "%d\n", DAC_FROM_REG(data->analog_out));
1191 }
1192 static ssize_t set_analog_out_reg(struct device *dev, struct device_attribute *attr, const char *buf,
1193 size_t count)
1194 {
1195 struct i2c_client *client = to_i2c_client(dev);
1196 struct adm1026_data *data = i2c_get_clientdata(client);
1197 int val = simple_strtol(buf, NULL, 10);
1198
1199 mutex_lock(&data->update_lock);
1200 data->analog_out = DAC_TO_REG(val);
1201 adm1026_write_value(client, ADM1026_REG_DAC, data->analog_out);
1202 mutex_unlock(&data->update_lock);
1203 return count;
1204 }
1205
1206 static DEVICE_ATTR(analog_out, S_IRUGO | S_IWUSR, show_analog_out_reg,
1207 set_analog_out_reg);
1208
1209 static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf)
1210 {
1211 struct adm1026_data *data = adm1026_update_device(dev);
1212 int vid = (data->gpio >> 11) & 0x1f;
1213
1214 dev_dbg(dev, "Setting VID from GPIO11-15.\n");
1215 return sprintf(buf, "%d\n", vid_from_reg(vid, data->vrm));
1216 }
1217 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
1218
1219 static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf)
1220 {
1221 struct adm1026_data *data = dev_get_drvdata(dev);
1222 return sprintf(buf, "%d\n", data->vrm);
1223 }
1224 static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf,
1225 size_t count)
1226 {
1227 struct adm1026_data *data = dev_get_drvdata(dev);
1228
1229 data->vrm = simple_strtol(buf, NULL, 10);
1230 return count;
1231 }
1232
1233 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
1234
1235 static ssize_t show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
1236 {
1237 struct adm1026_data *data = adm1026_update_device(dev);
1238 return sprintf(buf, "%ld\n", data->alarms);
1239 }
1240
1241 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
1242
1243 static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
1244 char *buf)
1245 {
1246 struct adm1026_data *data = adm1026_update_device(dev);
1247 int bitnr = to_sensor_dev_attr(attr)->index;
1248 return sprintf(buf, "%ld\n", (data->alarms >> bitnr) & 1);
1249 }
1250
1251 static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 0);
1252 static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 1);
1253 static SENSOR_DEVICE_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, 1);
1254 static SENSOR_DEVICE_ATTR(in11_alarm, S_IRUGO, show_alarm, NULL, 2);
1255 static SENSOR_DEVICE_ATTR(in12_alarm, S_IRUGO, show_alarm, NULL, 3);
1256 static SENSOR_DEVICE_ATTR(in13_alarm, S_IRUGO, show_alarm, NULL, 4);
1257 static SENSOR_DEVICE_ATTR(in14_alarm, S_IRUGO, show_alarm, NULL, 5);
1258 static SENSOR_DEVICE_ATTR(in15_alarm, S_IRUGO, show_alarm, NULL, 6);
1259 static SENSOR_DEVICE_ATTR(in16_alarm, S_IRUGO, show_alarm, NULL, 7);
1260 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 8);
1261 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 9);
1262 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 10);
1263 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 11);
1264 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 12);
1265 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 13);
1266 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 14);
1267 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 15);
1268 static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 16);
1269 static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 17);
1270 static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 18);
1271 static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 19);
1272 static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 20);
1273 static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 21);
1274 static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL, 22);
1275 static SENSOR_DEVICE_ATTR(fan8_alarm, S_IRUGO, show_alarm, NULL, 23);
1276 static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 24);
1277 static SENSOR_DEVICE_ATTR(in10_alarm, S_IRUGO, show_alarm, NULL, 25);
1278 static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 26);
1279
1280 static ssize_t show_alarm_mask(struct device *dev, struct device_attribute *attr, char *buf)
1281 {
1282 struct adm1026_data *data = adm1026_update_device(dev);
1283 return sprintf(buf, "%ld\n", data->alarm_mask);
1284 }
1285 static ssize_t set_alarm_mask(struct device *dev, struct device_attribute *attr, const char *buf,
1286 size_t count)
1287 {
1288 struct i2c_client *client = to_i2c_client(dev);
1289 struct adm1026_data *data = i2c_get_clientdata(client);
1290 int val = simple_strtol(buf, NULL, 10);
1291 unsigned long mask;
1292
1293 mutex_lock(&data->update_lock);
1294 data->alarm_mask = val & 0x7fffffff;
1295 mask = data->alarm_mask
1296 | (data->gpio_mask & 0x10000 ? 0x80000000 : 0);
1297 adm1026_write_value(client, ADM1026_REG_MASK1,
1298 mask & 0xff);
1299 mask >>= 8;
1300 adm1026_write_value(client, ADM1026_REG_MASK2,
1301 mask & 0xff);
1302 mask >>= 8;
1303 adm1026_write_value(client, ADM1026_REG_MASK3,
1304 mask & 0xff);
1305 mask >>= 8;
1306 adm1026_write_value(client, ADM1026_REG_MASK4,
1307 mask & 0xff);
1308 mutex_unlock(&data->update_lock);
1309 return count;
1310 }
1311
1312 static DEVICE_ATTR(alarm_mask, S_IRUGO | S_IWUSR, show_alarm_mask,
1313 set_alarm_mask);
1314
1315
1316 static ssize_t show_gpio(struct device *dev, struct device_attribute *attr, char *buf)
1317 {
1318 struct adm1026_data *data = adm1026_update_device(dev);
1319 return sprintf(buf, "%ld\n", data->gpio);
1320 }
1321 static ssize_t set_gpio(struct device *dev, struct device_attribute *attr, const char *buf,
1322 size_t count)
1323 {
1324 struct i2c_client *client = to_i2c_client(dev);
1325 struct adm1026_data *data = i2c_get_clientdata(client);
1326 int val = simple_strtol(buf, NULL, 10);
1327 long gpio;
1328
1329 mutex_lock(&data->update_lock);
1330 data->gpio = val & 0x1ffff;
1331 gpio = data->gpio;
1332 adm1026_write_value(client, ADM1026_REG_GPIO_STATUS_0_7, gpio & 0xff);
1333 gpio >>= 8;
1334 adm1026_write_value(client, ADM1026_REG_GPIO_STATUS_8_15, gpio & 0xff);
1335 gpio = ((gpio >> 1) & 0x80) | (data->alarms >> 24 & 0x7f);
1336 adm1026_write_value(client, ADM1026_REG_STATUS4, gpio & 0xff);
1337 mutex_unlock(&data->update_lock);
1338 return count;
1339 }
1340
1341 static DEVICE_ATTR(gpio, S_IRUGO | S_IWUSR, show_gpio, set_gpio);
1342
1343
1344 static ssize_t show_gpio_mask(struct device *dev, struct device_attribute *attr, char *buf)
1345 {
1346 struct adm1026_data *data = adm1026_update_device(dev);
1347 return sprintf(buf, "%ld\n", data->gpio_mask);
1348 }
1349 static ssize_t set_gpio_mask(struct device *dev, struct device_attribute *attr, const char *buf,
1350 size_t count)
1351 {
1352 struct i2c_client *client = to_i2c_client(dev);
1353 struct adm1026_data *data = i2c_get_clientdata(client);
1354 int val = simple_strtol(buf, NULL, 10);
1355 long mask;
1356
1357 mutex_lock(&data->update_lock);
1358 data->gpio_mask = val & 0x1ffff;
1359 mask = data->gpio_mask;
1360 adm1026_write_value(client, ADM1026_REG_GPIO_MASK_0_7, mask & 0xff);
1361 mask >>= 8;
1362 adm1026_write_value(client, ADM1026_REG_GPIO_MASK_8_15, mask & 0xff);
1363 mask = ((mask >> 1) & 0x80) | (data->alarm_mask >> 24 & 0x7f);
1364 adm1026_write_value(client, ADM1026_REG_MASK1, mask & 0xff);
1365 mutex_unlock(&data->update_lock);
1366 return count;
1367 }
1368
1369 static DEVICE_ATTR(gpio_mask, S_IRUGO | S_IWUSR, show_gpio_mask, set_gpio_mask);
1370
1371 static ssize_t show_pwm_reg(struct device *dev, struct device_attribute *attr, char *buf)
1372 {
1373 struct adm1026_data *data = adm1026_update_device(dev);
1374 return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm1.pwm));
1375 }
1376 static ssize_t set_pwm_reg(struct device *dev, struct device_attribute *attr, const char *buf,
1377 size_t count)
1378 {
1379 struct i2c_client *client = to_i2c_client(dev);
1380 struct adm1026_data *data = i2c_get_clientdata(client);
1381
1382 if (data->pwm1.enable == 1) {
1383 int val = simple_strtol(buf, NULL, 10);
1384
1385 mutex_lock(&data->update_lock);
1386 data->pwm1.pwm = PWM_TO_REG(val);
1387 adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm);
1388 mutex_unlock(&data->update_lock);
1389 }
1390 return count;
1391 }
1392 static ssize_t show_auto_pwm_min(struct device *dev, struct device_attribute *attr, char *buf)
1393 {
1394 struct adm1026_data *data = adm1026_update_device(dev);
1395 return sprintf(buf, "%d\n", data->pwm1.auto_pwm_min);
1396 }
1397 static ssize_t set_auto_pwm_min(struct device *dev, struct device_attribute *attr, const char *buf,
1398 size_t count)
1399 {
1400 struct i2c_client *client = to_i2c_client(dev);
1401 struct adm1026_data *data = i2c_get_clientdata(client);
1402 int val = simple_strtol(buf, NULL, 10);
1403
1404 mutex_lock(&data->update_lock);
1405 data->pwm1.auto_pwm_min = SENSORS_LIMIT(val, 0, 255);
1406 if (data->pwm1.enable == 2) { /* apply immediately */
1407 data->pwm1.pwm = PWM_TO_REG((data->pwm1.pwm & 0x0f) |
1408 PWM_MIN_TO_REG(data->pwm1.auto_pwm_min));
1409 adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm);
1410 }
1411 mutex_unlock(&data->update_lock);
1412 return count;
1413 }
1414 static ssize_t show_auto_pwm_max(struct device *dev, struct device_attribute *attr, char *buf)
1415 {
1416 return sprintf(buf, "%d\n", ADM1026_PWM_MAX);
1417 }
1418 static ssize_t show_pwm_enable(struct device *dev, struct device_attribute *attr, char *buf)
1419 {
1420 struct adm1026_data *data = adm1026_update_device(dev);
1421 return sprintf(buf, "%d\n", data->pwm1.enable);
1422 }
1423 static ssize_t set_pwm_enable(struct device *dev, struct device_attribute *attr, const char *buf,
1424 size_t count)
1425 {
1426 struct i2c_client *client = to_i2c_client(dev);
1427 struct adm1026_data *data = i2c_get_clientdata(client);
1428 int val = simple_strtol(buf, NULL, 10);
1429 int old_enable;
1430
1431 if ((val >= 0) && (val < 3)) {
1432 mutex_lock(&data->update_lock);
1433 old_enable = data->pwm1.enable;
1434 data->pwm1.enable = val;
1435 data->config1 = (data->config1 & ~CFG1_PWM_AFC)
1436 | ((val == 2) ? CFG1_PWM_AFC : 0);
1437 adm1026_write_value(client, ADM1026_REG_CONFIG1,
1438 data->config1);
1439 if (val == 2) { /* apply pwm1_auto_pwm_min to pwm1 */
1440 data->pwm1.pwm = PWM_TO_REG((data->pwm1.pwm & 0x0f) |
1441 PWM_MIN_TO_REG(data->pwm1.auto_pwm_min));
1442 adm1026_write_value(client, ADM1026_REG_PWM,
1443 data->pwm1.pwm);
1444 } else if (!((old_enable == 1) && (val == 1))) {
1445 /* set pwm to safe value */
1446 data->pwm1.pwm = 255;
1447 adm1026_write_value(client, ADM1026_REG_PWM,
1448 data->pwm1.pwm);
1449 }
1450 mutex_unlock(&data->update_lock);
1451 }
1452 return count;
1453 }
1454
1455 /* enable PWM fan control */
1456 static DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm_reg, set_pwm_reg);
1457 static DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, show_pwm_reg, set_pwm_reg);
1458 static DEVICE_ATTR(pwm3, S_IRUGO | S_IWUSR, show_pwm_reg, set_pwm_reg);
1459 static DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, show_pwm_enable,
1460 set_pwm_enable);
1461 static DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR, show_pwm_enable,
1462 set_pwm_enable);
1463 static DEVICE_ATTR(pwm3_enable, S_IRUGO | S_IWUSR, show_pwm_enable,
1464 set_pwm_enable);
1465 static DEVICE_ATTR(temp1_auto_point1_pwm, S_IRUGO | S_IWUSR,
1466 show_auto_pwm_min, set_auto_pwm_min);
1467 static DEVICE_ATTR(temp2_auto_point1_pwm, S_IRUGO | S_IWUSR,
1468 show_auto_pwm_min, set_auto_pwm_min);
1469 static DEVICE_ATTR(temp3_auto_point1_pwm, S_IRUGO | S_IWUSR,
1470 show_auto_pwm_min, set_auto_pwm_min);
1471
1472 static DEVICE_ATTR(temp1_auto_point2_pwm, S_IRUGO, show_auto_pwm_max, NULL);
1473 static DEVICE_ATTR(temp2_auto_point2_pwm, S_IRUGO, show_auto_pwm_max, NULL);
1474 static DEVICE_ATTR(temp3_auto_point2_pwm, S_IRUGO, show_auto_pwm_max, NULL);
1475
1476 static struct attribute *adm1026_attributes[] = {
1477 &sensor_dev_attr_in0_input.dev_attr.attr,
1478 &sensor_dev_attr_in0_max.dev_attr.attr,
1479 &sensor_dev_attr_in0_min.dev_attr.attr,
1480 &sensor_dev_attr_in0_alarm.dev_attr.attr,
1481 &sensor_dev_attr_in1_input.dev_attr.attr,
1482 &sensor_dev_attr_in1_max.dev_attr.attr,
1483 &sensor_dev_attr_in1_min.dev_attr.attr,
1484 &sensor_dev_attr_in1_alarm.dev_attr.attr,
1485 &sensor_dev_attr_in2_input.dev_attr.attr,
1486 &sensor_dev_attr_in2_max.dev_attr.attr,
1487 &sensor_dev_attr_in2_min.dev_attr.attr,
1488 &sensor_dev_attr_in2_alarm.dev_attr.attr,
1489 &sensor_dev_attr_in3_input.dev_attr.attr,
1490 &sensor_dev_attr_in3_max.dev_attr.attr,
1491 &sensor_dev_attr_in3_min.dev_attr.attr,
1492 &sensor_dev_attr_in3_alarm.dev_attr.attr,
1493 &sensor_dev_attr_in4_input.dev_attr.attr,
1494 &sensor_dev_attr_in4_max.dev_attr.attr,
1495 &sensor_dev_attr_in4_min.dev_attr.attr,
1496 &sensor_dev_attr_in4_alarm.dev_attr.attr,
1497 &sensor_dev_attr_in5_input.dev_attr.attr,
1498 &sensor_dev_attr_in5_max.dev_attr.attr,
1499 &sensor_dev_attr_in5_min.dev_attr.attr,
1500 &sensor_dev_attr_in5_alarm.dev_attr.attr,
1501 &sensor_dev_attr_in6_input.dev_attr.attr,
1502 &sensor_dev_attr_in6_max.dev_attr.attr,
1503 &sensor_dev_attr_in6_min.dev_attr.attr,
1504 &sensor_dev_attr_in6_alarm.dev_attr.attr,
1505 &sensor_dev_attr_in7_input.dev_attr.attr,
1506 &sensor_dev_attr_in7_max.dev_attr.attr,
1507 &sensor_dev_attr_in7_min.dev_attr.attr,
1508 &sensor_dev_attr_in7_alarm.dev_attr.attr,
1509 &sensor_dev_attr_in10_input.dev_attr.attr,
1510 &sensor_dev_attr_in10_max.dev_attr.attr,
1511 &sensor_dev_attr_in10_min.dev_attr.attr,
1512 &sensor_dev_attr_in10_alarm.dev_attr.attr,
1513 &sensor_dev_attr_in11_input.dev_attr.attr,
1514 &sensor_dev_attr_in11_max.dev_attr.attr,
1515 &sensor_dev_attr_in11_min.dev_attr.attr,
1516 &sensor_dev_attr_in11_alarm.dev_attr.attr,
1517 &sensor_dev_attr_in12_input.dev_attr.attr,
1518 &sensor_dev_attr_in12_max.dev_attr.attr,
1519 &sensor_dev_attr_in12_min.dev_attr.attr,
1520 &sensor_dev_attr_in12_alarm.dev_attr.attr,
1521 &sensor_dev_attr_in13_input.dev_attr.attr,
1522 &sensor_dev_attr_in13_max.dev_attr.attr,
1523 &sensor_dev_attr_in13_min.dev_attr.attr,
1524 &sensor_dev_attr_in13_alarm.dev_attr.attr,
1525 &sensor_dev_attr_in14_input.dev_attr.attr,
1526 &sensor_dev_attr_in14_max.dev_attr.attr,
1527 &sensor_dev_attr_in14_min.dev_attr.attr,
1528 &sensor_dev_attr_in14_alarm.dev_attr.attr,
1529 &sensor_dev_attr_in15_input.dev_attr.attr,
1530 &sensor_dev_attr_in15_max.dev_attr.attr,
1531 &sensor_dev_attr_in15_min.dev_attr.attr,
1532 &sensor_dev_attr_in15_alarm.dev_attr.attr,
1533 &sensor_dev_attr_in16_input.dev_attr.attr,
1534 &sensor_dev_attr_in16_max.dev_attr.attr,
1535 &sensor_dev_attr_in16_min.dev_attr.attr,
1536 &sensor_dev_attr_in16_alarm.dev_attr.attr,
1537 &sensor_dev_attr_fan1_input.dev_attr.attr,
1538 &sensor_dev_attr_fan1_div.dev_attr.attr,
1539 &sensor_dev_attr_fan1_min.dev_attr.attr,
1540 &sensor_dev_attr_fan1_alarm.dev_attr.attr,
1541 &sensor_dev_attr_fan2_input.dev_attr.attr,
1542 &sensor_dev_attr_fan2_div.dev_attr.attr,
1543 &sensor_dev_attr_fan2_min.dev_attr.attr,
1544 &sensor_dev_attr_fan2_alarm.dev_attr.attr,
1545 &sensor_dev_attr_fan3_input.dev_attr.attr,
1546 &sensor_dev_attr_fan3_div.dev_attr.attr,
1547 &sensor_dev_attr_fan3_min.dev_attr.attr,
1548 &sensor_dev_attr_fan3_alarm.dev_attr.attr,
1549 &sensor_dev_attr_fan4_input.dev_attr.attr,
1550 &sensor_dev_attr_fan4_div.dev_attr.attr,
1551 &sensor_dev_attr_fan4_min.dev_attr.attr,
1552 &sensor_dev_attr_fan4_alarm.dev_attr.attr,
1553 &sensor_dev_attr_fan5_input.dev_attr.attr,
1554 &sensor_dev_attr_fan5_div.dev_attr.attr,
1555 &sensor_dev_attr_fan5_min.dev_attr.attr,
1556 &sensor_dev_attr_fan5_alarm.dev_attr.attr,
1557 &sensor_dev_attr_fan6_input.dev_attr.attr,
1558 &sensor_dev_attr_fan6_div.dev_attr.attr,
1559 &sensor_dev_attr_fan6_min.dev_attr.attr,
1560 &sensor_dev_attr_fan6_alarm.dev_attr.attr,
1561 &sensor_dev_attr_fan7_input.dev_attr.attr,
1562 &sensor_dev_attr_fan7_div.dev_attr.attr,
1563 &sensor_dev_attr_fan7_min.dev_attr.attr,
1564 &sensor_dev_attr_fan7_alarm.dev_attr.attr,
1565 &sensor_dev_attr_fan8_input.dev_attr.attr,
1566 &sensor_dev_attr_fan8_div.dev_attr.attr,
1567 &sensor_dev_attr_fan8_min.dev_attr.attr,
1568 &sensor_dev_attr_fan8_alarm.dev_attr.attr,
1569 &sensor_dev_attr_temp1_input.dev_attr.attr,
1570 &sensor_dev_attr_temp1_max.dev_attr.attr,
1571 &sensor_dev_attr_temp1_min.dev_attr.attr,
1572 &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1573 &sensor_dev_attr_temp2_input.dev_attr.attr,
1574 &sensor_dev_attr_temp2_max.dev_attr.attr,
1575 &sensor_dev_attr_temp2_min.dev_attr.attr,
1576 &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1577 &sensor_dev_attr_temp1_offset.dev_attr.attr,
1578 &sensor_dev_attr_temp2_offset.dev_attr.attr,
1579 &sensor_dev_attr_temp1_auto_point1_temp.dev_attr.attr,
1580 &sensor_dev_attr_temp2_auto_point1_temp.dev_attr.attr,
1581 &sensor_dev_attr_temp1_auto_point1_temp_hyst.dev_attr.attr,
1582 &sensor_dev_attr_temp2_auto_point1_temp_hyst.dev_attr.attr,
1583 &sensor_dev_attr_temp1_auto_point2_temp.dev_attr.attr,
1584 &sensor_dev_attr_temp2_auto_point2_temp.dev_attr.attr,
1585 &sensor_dev_attr_temp1_crit.dev_attr.attr,
1586 &sensor_dev_attr_temp2_crit.dev_attr.attr,
1587 &dev_attr_temp1_crit_enable.attr,
1588 &dev_attr_temp2_crit_enable.attr,
1589 &dev_attr_cpu0_vid.attr,
1590 &dev_attr_vrm.attr,
1591 &dev_attr_alarms.attr,
1592 &dev_attr_alarm_mask.attr,
1593 &dev_attr_gpio.attr,
1594 &dev_attr_gpio_mask.attr,
1595 &dev_attr_pwm1.attr,
1596 &dev_attr_pwm2.attr,
1597 &dev_attr_pwm3.attr,
1598 &dev_attr_pwm1_enable.attr,
1599 &dev_attr_pwm2_enable.attr,
1600 &dev_attr_pwm3_enable.attr,
1601 &dev_attr_temp1_auto_point1_pwm.attr,
1602 &dev_attr_temp2_auto_point1_pwm.attr,
1603 &dev_attr_temp1_auto_point2_pwm.attr,
1604 &dev_attr_temp2_auto_point2_pwm.attr,
1605 &dev_attr_analog_out.attr,
1606 NULL
1607 };
1608
1609 static const struct attribute_group adm1026_group = {
1610 .attrs = adm1026_attributes,
1611 };
1612
1613 static struct attribute *adm1026_attributes_temp3[] = {
1614 &sensor_dev_attr_temp3_input.dev_attr.attr,
1615 &sensor_dev_attr_temp3_max.dev_attr.attr,
1616 &sensor_dev_attr_temp3_min.dev_attr.attr,
1617 &sensor_dev_attr_temp3_alarm.dev_attr.attr,
1618 &sensor_dev_attr_temp3_offset.dev_attr.attr,
1619 &sensor_dev_attr_temp3_auto_point1_temp.dev_attr.attr,
1620 &sensor_dev_attr_temp3_auto_point1_temp_hyst.dev_attr.attr,
1621 &sensor_dev_attr_temp3_auto_point2_temp.dev_attr.attr,
1622 &sensor_dev_attr_temp3_crit.dev_attr.attr,
1623 &dev_attr_temp3_crit_enable.attr,
1624 &dev_attr_temp3_auto_point1_pwm.attr,
1625 &dev_attr_temp3_auto_point2_pwm.attr,
1626 NULL
1627 };
1628
1629 static const struct attribute_group adm1026_group_temp3 = {
1630 .attrs = adm1026_attributes_temp3,
1631 };
1632
1633 static struct attribute *adm1026_attributes_in8_9[] = {
1634 &sensor_dev_attr_in8_input.dev_attr.attr,
1635 &sensor_dev_attr_in8_max.dev_attr.attr,
1636 &sensor_dev_attr_in8_min.dev_attr.attr,
1637 &sensor_dev_attr_in8_alarm.dev_attr.attr,
1638 &sensor_dev_attr_in9_input.dev_attr.attr,
1639 &sensor_dev_attr_in9_max.dev_attr.attr,
1640 &sensor_dev_attr_in9_min.dev_attr.attr,
1641 &sensor_dev_attr_in9_alarm.dev_attr.attr,
1642 NULL
1643 };
1644
1645 static const struct attribute_group adm1026_group_in8_9 = {
1646 .attrs = adm1026_attributes_in8_9,
1647 };
1648
1649 /* Return 0 if detection is successful, -ENODEV otherwise */
1650 static int adm1026_detect(struct i2c_client *client,
1651 struct i2c_board_info *info)
1652 {
1653 struct i2c_adapter *adapter = client->adapter;
1654 int address = client->addr;
1655 int company, verstep;
1656
1657 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
1658 /* We need to be able to do byte I/O */
1659 return -ENODEV;
1660 };
1661
1662 /* Now, we do the remaining detection. */
1663
1664 company = adm1026_read_value(client, ADM1026_REG_COMPANY);
1665 verstep = adm1026_read_value(client, ADM1026_REG_VERSTEP);
1666
1667 dev_dbg(&adapter->dev, "Detecting device at %d,0x%02x with"
1668 " COMPANY: 0x%02x and VERSTEP: 0x%02x\n",
1669 i2c_adapter_id(client->adapter), client->addr,
1670 company, verstep);
1671
1672 /* Determine the chip type. */
1673 dev_dbg(&adapter->dev, "Autodetecting device at %d,0x%02x...\n",
1674 i2c_adapter_id(adapter), address);
1675 if (company == ADM1026_COMPANY_ANALOG_DEV
1676 && verstep == ADM1026_VERSTEP_ADM1026) {
1677 /* Analog Devices ADM1026 */
1678 } else if (company == ADM1026_COMPANY_ANALOG_DEV
1679 && (verstep & 0xf0) == ADM1026_VERSTEP_GENERIC) {
1680 dev_err(&adapter->dev, "Unrecognized stepping "
1681 "0x%02x. Defaulting to ADM1026.\n", verstep);
1682 } else if ((verstep & 0xf0) == ADM1026_VERSTEP_GENERIC) {
1683 dev_err(&adapter->dev, "Found version/stepping "
1684 "0x%02x. Assuming generic ADM1026.\n",
1685 verstep);
1686 } else {
1687 dev_dbg(&adapter->dev, "Autodetection failed\n");
1688 /* Not an ADM1026... */
1689 return -ENODEV;
1690 }
1691
1692 strlcpy(info->type, "adm1026", I2C_NAME_SIZE);
1693
1694 return 0;
1695 }
1696
1697 static int adm1026_probe(struct i2c_client *client,
1698 const struct i2c_device_id *id)
1699 {
1700 struct adm1026_data *data;
1701 int err;
1702
1703 data = kzalloc(sizeof(struct adm1026_data), GFP_KERNEL);
1704 if (!data) {
1705 err = -ENOMEM;
1706 goto exit;
1707 }
1708
1709 i2c_set_clientdata(client, data);
1710 mutex_init(&data->update_lock);
1711
1712 /* Set the VRM version */
1713 data->vrm = vid_which_vrm();
1714
1715 /* Initialize the ADM1026 chip */
1716 adm1026_init_client(client);
1717
1718 /* Register sysfs hooks */
1719 if ((err = sysfs_create_group(&client->dev.kobj, &adm1026_group)))
1720 goto exitfree;
1721 if (data->config1 & CFG1_AIN8_9)
1722 err = sysfs_create_group(&client->dev.kobj,
1723 &adm1026_group_in8_9);
1724 else
1725 err = sysfs_create_group(&client->dev.kobj,
1726 &adm1026_group_temp3);
1727 if (err)
1728 goto exitremove;
1729
1730 data->hwmon_dev = hwmon_device_register(&client->dev);
1731 if (IS_ERR(data->hwmon_dev)) {
1732 err = PTR_ERR(data->hwmon_dev);
1733 goto exitremove;
1734 }
1735
1736 return 0;
1737
1738 /* Error out and cleanup code */
1739 exitremove:
1740 sysfs_remove_group(&client->dev.kobj, &adm1026_group);
1741 if (data->config1 & CFG1_AIN8_9)
1742 sysfs_remove_group(&client->dev.kobj, &adm1026_group_in8_9);
1743 else
1744 sysfs_remove_group(&client->dev.kobj, &adm1026_group_temp3);
1745 exitfree:
1746 kfree(data);
1747 exit:
1748 return err;
1749 }
1750
1751 static int adm1026_remove(struct i2c_client *client)
1752 {
1753 struct adm1026_data *data = i2c_get_clientdata(client);
1754 hwmon_device_unregister(data->hwmon_dev);
1755 sysfs_remove_group(&client->dev.kobj, &adm1026_group);
1756 if (data->config1 & CFG1_AIN8_9)
1757 sysfs_remove_group(&client->dev.kobj, &adm1026_group_in8_9);
1758 else
1759 sysfs_remove_group(&client->dev.kobj, &adm1026_group_temp3);
1760 kfree(data);
1761 return 0;
1762 }
1763
1764 static int __init sm_adm1026_init(void)
1765 {
1766 return i2c_add_driver(&adm1026_driver);
1767 }
1768
1769 static void __exit sm_adm1026_exit(void)
1770 {
1771 i2c_del_driver(&adm1026_driver);
1772 }
1773
1774 MODULE_LICENSE("GPL");
1775 MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, "
1776 "Justin Thiessen <jthiessen@penguincomputing.com>");
1777 MODULE_DESCRIPTION("ADM1026 driver");
1778
1779 module_init(sm_adm1026_init);
1780 module_exit(sm_adm1026_exit);
kernel-based virtual machine