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sched: eliminate rq_clock() use
[usb.git] / drivers / hwmon / adm1026.c
blobba80cd3258c69fe63f0277726cf37bec2f653f0f
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.analog.com/UploadedFiles/Data_Sheets/779263102ADM1026_a.pdf>
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 unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
39
40 /* Insmod parameters */
41 I2C_CLIENT_INSMOD_1(adm1026);
42
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 "
56 "outputs");
57 module_param_array(gpio_inverted,int,NULL,0);
58 MODULE_PARM_DESC(gpio_inverted,"List of GPIO pins (0-16) to program as "
59 "inverted");
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");
65
66 /* Many ADM1026 constants specified below */
67
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
78 #define ADM1026_REG_CONFIG2 0x01
79 /* CONFIG2 controls FAN0/GPIO0 through FAN7/GPIO7 */
80 #define ADM1026_REG_CONFIG3 0x07
81 #define CFG3_GPIO16_ENABLE 0x01
82 #define CFG3_CI_CLEAR 0x02
83 #define CFG3_VREF_250 0x04
84 #define CFG3_GPIO16_DIR 0x40
85 #define CFG3_GPIO16_POL 0x80
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 acording 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 : SENSORS_LIMIT(1350000/((val)*\
205 (div)),1,254))
206 #define FAN_FROM_REG(val,div) ((val)==0?-1:(val)==0xff ? 0 : 1350000/((val)*\
207 (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 /* Typically used with systems using a v9.1 VRM spec ? */
233 #define ADM1026_INIT_VRM 91
234
235 /* Chip sampling rates
236 *
237 * Some sensors are not updated more frequently than once per second
238 * so it doesn't make sense to read them more often than that.
239 * We cache the results and return the saved data if the driver
240 * is called again before a second has elapsed.
241 *
242 * Also, there is significant configuration data for this chip
243 * So, we keep the config data up to date in the cache
244 * when it is written and only sample it once every 5 *minutes*
245 */
246 #define ADM1026_DATA_INTERVAL (1 * HZ)
247 #define ADM1026_CONFIG_INTERVAL (5 * 60 * HZ)
248
249 /* We allow for multiple chips in a single system.
250 *
251 * For each registered ADM1026, we need to keep state information
252 * at client->data. The adm1026_data structure is dynamically
253 * allocated, when a new client structure is allocated. */
254
255 struct pwm_data {
256 u8 pwm;
257 u8 enable;
258 u8 auto_pwm_min;
259 };
260
261 struct adm1026_data {
262 struct i2c_client client;
263 struct class_device *class_dev;
264 enum chips type;
265
266 struct mutex update_lock;
267 int valid; /* !=0 if following fields are valid */
268 unsigned long last_reading; /* In jiffies */
269 unsigned long last_config; /* In jiffies */
270
271 u8 in[17]; /* Register value */
272 u8 in_max[17]; /* Register value */
273 u8 in_min[17]; /* Register value */
274 s8 temp[3]; /* Register value */
275 s8 temp_min[3]; /* Register value */
276 s8 temp_max[3]; /* Register value */
277 s8 temp_tmin[3]; /* Register value */
278 s8 temp_crit[3]; /* Register value */
279 s8 temp_offset[3]; /* Register value */
280 u8 fan[8]; /* Register value */
281 u8 fan_min[8]; /* Register value */
282 u8 fan_div[8]; /* Decoded value */
283 struct pwm_data pwm1; /* Pwm control values */
284 int vid; /* Decoded value */
285 u8 vrm; /* VRM version */
286 u8 analog_out; /* Register value (DAC) */
287 long alarms; /* Register encoding, combined */
288 long alarm_mask; /* Register encoding, combined */
289 long gpio; /* Register encoding, combined */
290 long gpio_mask; /* Register encoding, combined */
291 u8 gpio_config[17]; /* Decoded value */
292 u8 config1; /* Register value */
293 u8 config2; /* Register value */
294 u8 config3; /* Register value */
295 };
296
297 static int adm1026_attach_adapter(struct i2c_adapter *adapter);
298 static int adm1026_detect(struct i2c_adapter *adapter, int address,
299 int kind);
300 static int adm1026_detach_client(struct i2c_client *client);
301 static int adm1026_read_value(struct i2c_client *client, u8 reg);
302 static int adm1026_write_value(struct i2c_client *client, u8 reg, int value);
303 static void adm1026_print_gpio(struct i2c_client *client);
304 static void adm1026_fixup_gpio(struct i2c_client *client);
305 static struct adm1026_data *adm1026_update_device(struct device *dev);
306 static void adm1026_init_client(struct i2c_client *client);
307
308
309 static struct i2c_driver adm1026_driver = {
310 .driver = {
311 .name = "adm1026",
312 },
313 .attach_adapter = adm1026_attach_adapter,
314 .detach_client = adm1026_detach_client,
315 };
316
317 static int adm1026_attach_adapter(struct i2c_adapter *adapter)
318 {
319 if (!(adapter->class & I2C_CLASS_HWMON)) {
320 return 0;
321 }
322 return i2c_probe(adapter, &addr_data, adm1026_detect);
323 }
324
325 static int adm1026_read_value(struct i2c_client *client, u8 reg)
326 {
327 int res;
328
329 if (reg < 0x80) {
330 /* "RAM" locations */
331 res = i2c_smbus_read_byte_data(client, reg) & 0xff;
332 } else {
333 /* EEPROM, do nothing */
334 res = 0;
335 }
336 return res;
337 }
338
339 static int adm1026_write_value(struct i2c_client *client, u8 reg, int value)
340 {
341 int res;
342
343 if (reg < 0x80) {
344 /* "RAM" locations */
345 res = i2c_smbus_write_byte_data(client, reg, value);
346 } else {
347 /* EEPROM, do nothing */
348 res = 0;
349 }
350 return res;
351 }
352
353 static void adm1026_init_client(struct i2c_client *client)
354 {
355 int value, i;
356 struct adm1026_data *data = i2c_get_clientdata(client);
357
358 dev_dbg(&client->dev, "Initializing device\n");
359 /* Read chip config */
360 data->config1 = adm1026_read_value(client, ADM1026_REG_CONFIG1);
361 data->config2 = adm1026_read_value(client, ADM1026_REG_CONFIG2);
362 data->config3 = adm1026_read_value(client, ADM1026_REG_CONFIG3);
363
364 /* Inform user of chip config */
365 dev_dbg(&client->dev, "ADM1026_REG_CONFIG1 is: 0x%02x\n",
366 data->config1);
367 if ((data->config1 & CFG1_MONITOR) == 0) {
368 dev_dbg(&client->dev, "Monitoring not currently "
369 "enabled.\n");
370 }
371 if (data->config1 & CFG1_INT_ENABLE) {
372 dev_dbg(&client->dev, "SMBALERT interrupts are "
373 "enabled.\n");
374 }
375 if (data->config1 & CFG1_AIN8_9) {
376 dev_dbg(&client->dev, "in8 and in9 enabled. "
377 "temp3 disabled.\n");
378 } else {
379 dev_dbg(&client->dev, "temp3 enabled. in8 and "
380 "in9 disabled.\n");
381 }
382 if (data->config1 & CFG1_THERM_HOT) {
383 dev_dbg(&client->dev, "Automatic THERM, PWM, "
384 "and temp limits enabled.\n");
385 }
386
387 value = data->config3;
388 if (data->config3 & CFG3_GPIO16_ENABLE) {
389 dev_dbg(&client->dev, "GPIO16 enabled. THERM "
390 "pin disabled.\n");
391 } else {
392 dev_dbg(&client->dev, "THERM pin enabled. "
393 "GPIO16 disabled.\n");
394 }
395 if (data->config3 & CFG3_VREF_250) {
396 dev_dbg(&client->dev, "Vref is 2.50 Volts.\n");
397 } else {
398 dev_dbg(&client->dev, "Vref is 1.82 Volts.\n");
399 }
400 /* Read and pick apart the existing GPIO configuration */
401 value = 0;
402 for (i = 0;i <= 15;++i) {
403 if ((i & 0x03) == 0) {
404 value = adm1026_read_value(client,
405 ADM1026_REG_GPIO_CFG_0_3 + i/4);
406 }
407 data->gpio_config[i] = value & 0x03;
408 value >>= 2;
409 }
410 data->gpio_config[16] = (data->config3 >> 6) & 0x03;
411
412 /* ... and then print it */
413 adm1026_print_gpio(client);
414
415 /* If the user asks us to reprogram the GPIO config, then
416 * do it now.
417 */
418 if (gpio_input[0] != -1 || gpio_output[0] != -1
419 || gpio_inverted[0] != -1 || gpio_normal[0] != -1
420 || gpio_fan[0] != -1) {
421 adm1026_fixup_gpio(client);
422 }
423
424 /* WE INTENTIONALLY make no changes to the limits,
425 * offsets, pwms, fans and zones. If they were
426 * configured, we don't want to mess with them.
427 * If they weren't, the default is 100% PWM, no
428 * control and will suffice until 'sensors -s'
429 * can be run by the user. We DO set the default
430 * value for pwm1.auto_pwm_min to its maximum
431 * so that enabling automatic pwm fan control
432 * without first setting a value for pwm1.auto_pwm_min
433 * will not result in potentially dangerous fan speed decrease.
434 */
435 data->pwm1.auto_pwm_min=255;
436 /* Start monitoring */
437 value = adm1026_read_value(client, ADM1026_REG_CONFIG1);
438 /* Set MONITOR, clear interrupt acknowledge and s/w reset */
439 value = (value | CFG1_MONITOR) & (~CFG1_INT_CLEAR & ~CFG1_RESET);
440 dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value);
441 data->config1 = value;
442 adm1026_write_value(client, ADM1026_REG_CONFIG1, value);
443
444 /* initialize fan_div[] to hardware defaults */
445 value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3) |
446 (adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7) << 8);
447 for (i = 0;i <= 7;++i) {
448 data->fan_div[i] = DIV_FROM_REG(value & 0x03);
449 value >>= 2;
450 }
451 }
452
453 static void adm1026_print_gpio(struct i2c_client *client)
454 {
455 struct adm1026_data *data = i2c_get_clientdata(client);
456 int i;
457
458 dev_dbg(&client->dev, "GPIO config is:");
459 for (i = 0;i <= 7;++i) {
460 if (data->config2 & (1 << i)) {
461 dev_dbg(&client->dev, "\t%sGP%s%d\n",
462 data->gpio_config[i] & 0x02 ? "" : "!",
463 data->gpio_config[i] & 0x01 ? "OUT" : "IN",
464 i);
465 } else {
466 dev_dbg(&client->dev, "\tFAN%d\n", i);
467 }
468 }
469 for (i = 8;i <= 15;++i) {
470 dev_dbg(&client->dev, "\t%sGP%s%d\n",
471 data->gpio_config[i] & 0x02 ? "" : "!",
472 data->gpio_config[i] & 0x01 ? "OUT" : "IN",
473 i);
474 }
475 if (data->config3 & CFG3_GPIO16_ENABLE) {
476 dev_dbg(&client->dev, "\t%sGP%s16\n",
477 data->gpio_config[16] & 0x02 ? "" : "!",
478 data->gpio_config[16] & 0x01 ? "OUT" : "IN");
479 } else {
480 /* GPIO16 is THERM */
481 dev_dbg(&client->dev, "\tTHERM\n");
482 }
483 }
484
485 static void adm1026_fixup_gpio(struct i2c_client *client)
486 {
487 struct adm1026_data *data = i2c_get_clientdata(client);
488 int i;
489 int value;
490
491 /* Make the changes requested. */
492 /* We may need to unlock/stop monitoring or soft-reset the
493 * chip before we can make changes. This hasn't been
494 * tested much. FIXME
495 */
496
497 /* Make outputs */
498 for (i = 0;i <= 16;++i) {
499 if (gpio_output[i] >= 0 && gpio_output[i] <= 16) {
500 data->gpio_config[gpio_output[i]] |= 0x01;
501 }
502 /* if GPIO0-7 is output, it isn't a FAN tach */
503 if (gpio_output[i] >= 0 && gpio_output[i] <= 7) {
504 data->config2 |= 1 << gpio_output[i];
505 }
506 }
507
508 /* Input overrides output */
509 for (i = 0;i <= 16;++i) {
510 if (gpio_input[i] >= 0 && gpio_input[i] <= 16) {
511 data->gpio_config[gpio_input[i]] &= ~ 0x01;
512 }
513 /* if GPIO0-7 is input, it isn't a FAN tach */
514 if (gpio_input[i] >= 0 && gpio_input[i] <= 7) {
515 data->config2 |= 1 << gpio_input[i];
516 }
517 }
518
519 /* Inverted */
520 for (i = 0;i <= 16;++i) {
521 if (gpio_inverted[i] >= 0 && gpio_inverted[i] <= 16) {
522 data->gpio_config[gpio_inverted[i]] &= ~ 0x02;
523 }
524 }
525
526 /* Normal overrides inverted */
527 for (i = 0;i <= 16;++i) {
528 if (gpio_normal[i] >= 0 && gpio_normal[i] <= 16) {
529 data->gpio_config[gpio_normal[i]] |= 0x02;
530 }
531 }
532
533 /* Fan overrides input and output */
534 for (i = 0;i <= 7;++i) {
535 if (gpio_fan[i] >= 0 && gpio_fan[i] <= 7) {
536 data->config2 &= ~(1 << gpio_fan[i]);
537 }
538 }
539
540 /* Write new configs to registers */
541 adm1026_write_value(client, ADM1026_REG_CONFIG2, data->config2);
542 data->config3 = (data->config3 & 0x3f)
543 | ((data->gpio_config[16] & 0x03) << 6);
544 adm1026_write_value(client, ADM1026_REG_CONFIG3, data->config3);
545 for (i = 15, value = 0;i >= 0;--i) {
546 value <<= 2;
547 value |= data->gpio_config[i] & 0x03;
548 if ((i & 0x03) == 0) {
549 adm1026_write_value(client,
550 ADM1026_REG_GPIO_CFG_0_3 + i/4,
551 value);
552 value = 0;
553 }
554 }
555
556 /* Print the new config */
557 adm1026_print_gpio(client);
558 }
559
560
561 static struct adm1026_data *adm1026_update_device(struct device *dev)
562 {
563 struct i2c_client *client = to_i2c_client(dev);
564 struct adm1026_data *data = i2c_get_clientdata(client);
565 int i;
566 long value, alarms, gpio;
567
568 mutex_lock(&data->update_lock);
569 if (!data->valid
570 || time_after(jiffies, data->last_reading + ADM1026_DATA_INTERVAL)) {
571 /* Things that change quickly */
572 dev_dbg(&client->dev,"Reading sensor values\n");
573 for (i = 0;i <= 16;++i) {
574 data->in[i] =
575 adm1026_read_value(client, ADM1026_REG_IN[i]);
576 }
577
578 for (i = 0;i <= 7;++i) {
579 data->fan[i] =
580 adm1026_read_value(client, ADM1026_REG_FAN(i));
581 }
582
583 for (i = 0;i <= 2;++i) {
584 /* NOTE: temp[] is s8 and we assume 2's complement
585 * "conversion" in the assignment */
586 data->temp[i] =
587 adm1026_read_value(client, ADM1026_REG_TEMP[i]);
588 }
589
590 data->pwm1.pwm = adm1026_read_value(client,
591 ADM1026_REG_PWM);
592 data->analog_out = adm1026_read_value(client,
593 ADM1026_REG_DAC);
594 /* GPIO16 is MSbit of alarms, move it to gpio */
595 alarms = adm1026_read_value(client, ADM1026_REG_STATUS4);
596 gpio = alarms & 0x80 ? 0x0100 : 0; /* GPIO16 */
597 alarms &= 0x7f;
598 alarms <<= 8;
599 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS3);
600 alarms <<= 8;
601 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS2);
602 alarms <<= 8;
603 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS1);
604 data->alarms = alarms;
605
606 /* Read the GPIO values */
607 gpio |= adm1026_read_value(client,
608 ADM1026_REG_GPIO_STATUS_8_15);
609 gpio <<= 8;
610 gpio |= adm1026_read_value(client,
611 ADM1026_REG_GPIO_STATUS_0_7);
612 data->gpio = gpio;
613
614 data->last_reading = jiffies;
615 }; /* last_reading */
616
617 if (!data->valid ||
618 time_after(jiffies, data->last_config + ADM1026_CONFIG_INTERVAL)) {
619 /* Things that don't change often */
620 dev_dbg(&client->dev, "Reading config values\n");
621 for (i = 0;i <= 16;++i) {
622 data->in_min[i] = adm1026_read_value(client,
623 ADM1026_REG_IN_MIN[i]);
624 data->in_max[i] = adm1026_read_value(client,
625 ADM1026_REG_IN_MAX[i]);
626 }
627
628 value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3)
629 | (adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7)
630 << 8);
631 for (i = 0;i <= 7;++i) {
632 data->fan_min[i] = adm1026_read_value(client,
633 ADM1026_REG_FAN_MIN(i));
634 data->fan_div[i] = DIV_FROM_REG(value & 0x03);
635 value >>= 2;
636 }
637
638 for (i = 0; i <= 2; ++i) {
639 /* NOTE: temp_xxx[] are s8 and we assume 2's
640 * complement "conversion" in the assignment
641 */
642 data->temp_min[i] = adm1026_read_value(client,
643 ADM1026_REG_TEMP_MIN[i]);
644 data->temp_max[i] = adm1026_read_value(client,
645 ADM1026_REG_TEMP_MAX[i]);
646 data->temp_tmin[i] = adm1026_read_value(client,
647 ADM1026_REG_TEMP_TMIN[i]);
648 data->temp_crit[i] = adm1026_read_value(client,
649 ADM1026_REG_TEMP_THERM[i]);
650 data->temp_offset[i] = adm1026_read_value(client,
651 ADM1026_REG_TEMP_OFFSET[i]);
652 }
653
654 /* Read the STATUS/alarm masks */
655 alarms = adm1026_read_value(client, ADM1026_REG_MASK4);
656 gpio = alarms & 0x80 ? 0x0100 : 0; /* GPIO16 */
657 alarms = (alarms & 0x7f) << 8;
658 alarms |= adm1026_read_value(client, ADM1026_REG_MASK3);
659 alarms <<= 8;
660 alarms |= adm1026_read_value(client, ADM1026_REG_MASK2);
661 alarms <<= 8;
662 alarms |= adm1026_read_value(client, ADM1026_REG_MASK1);
663 data->alarm_mask = alarms;
664
665 /* Read the GPIO values */
666 gpio |= adm1026_read_value(client,
667 ADM1026_REG_GPIO_MASK_8_15);
668 gpio <<= 8;
669 gpio |= adm1026_read_value(client, ADM1026_REG_GPIO_MASK_0_7);
670 data->gpio_mask = gpio;
671
672 /* Read various values from CONFIG1 */
673 data->config1 = adm1026_read_value(client,
674 ADM1026_REG_CONFIG1);
675 if (data->config1 & CFG1_PWM_AFC) {
676 data->pwm1.enable = 2;
677 data->pwm1.auto_pwm_min =
678 PWM_MIN_FROM_REG(data->pwm1.pwm);
679 }
680 /* Read the GPIO config */
681 data->config2 = adm1026_read_value(client,
682 ADM1026_REG_CONFIG2);
683 data->config3 = adm1026_read_value(client,
684 ADM1026_REG_CONFIG3);
685 data->gpio_config[16] = (data->config3 >> 6) & 0x03;
686
687 value = 0;
688 for (i = 0;i <= 15;++i) {
689 if ((i & 0x03) == 0) {
690 value = adm1026_read_value(client,
691 ADM1026_REG_GPIO_CFG_0_3 + i/4);
692 }
693 data->gpio_config[i] = value & 0x03;
694 value >>= 2;
695 }
696
697 data->last_config = jiffies;
698 }; /* last_config */
699
700 dev_dbg(&client->dev, "Setting VID from GPIO11-15.\n");
701 data->vid = (data->gpio >> 11) & 0x1f;
702 data->valid = 1;
703 mutex_unlock(&data->update_lock);
704 return data;
705 }
706
707 static ssize_t show_in(struct device *dev, struct device_attribute *attr,
708 char *buf)
709 {
710 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
711 int nr = sensor_attr->index;
712 struct adm1026_data *data = adm1026_update_device(dev);
713 return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in[nr]));
714 }
715 static ssize_t show_in_min(struct device *dev, struct device_attribute *attr,
716 char *buf)
717 {
718 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
719 int nr = sensor_attr->index;
720 struct adm1026_data *data = adm1026_update_device(dev);
721 return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_min[nr]));
722 }
723 static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
724 const char *buf, size_t count)
725 {
726 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
727 int nr = sensor_attr->index;
728 struct i2c_client *client = to_i2c_client(dev);
729 struct adm1026_data *data = i2c_get_clientdata(client);
730 int val = simple_strtol(buf, NULL, 10);
731
732 mutex_lock(&data->update_lock);
733 data->in_min[nr] = INS_TO_REG(nr, val);
734 adm1026_write_value(client, ADM1026_REG_IN_MIN[nr], data->in_min[nr]);
735 mutex_unlock(&data->update_lock);
736 return count;
737 }
738 static ssize_t show_in_max(struct device *dev, struct device_attribute *attr,
739 char *buf)
740 {
741 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
742 int nr = sensor_attr->index;
743 struct adm1026_data *data = adm1026_update_device(dev);
744 return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_max[nr]));
745 }
746 static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
747 const char *buf, size_t count)
748 {
749 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
750 int nr = sensor_attr->index;
751 struct i2c_client *client = to_i2c_client(dev);
752 struct adm1026_data *data = i2c_get_clientdata(client);
753 int val = simple_strtol(buf, NULL, 10);
754
755 mutex_lock(&data->update_lock);
756 data->in_max[nr] = INS_TO_REG(nr, val);
757 adm1026_write_value(client, ADM1026_REG_IN_MAX[nr], data->in_max[nr]);
758 mutex_unlock(&data->update_lock);
759 return count;
760 }
761
762 #define in_reg(offset) \
763 static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in, \
764 NULL, offset); \
765 static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \
766 show_in_min, set_in_min, offset); \
767 static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \
768 show_in_max, set_in_max, offset);
769
770
771 in_reg(0);
772 in_reg(1);
773 in_reg(2);
774 in_reg(3);
775 in_reg(4);
776 in_reg(5);
777 in_reg(6);
778 in_reg(7);
779 in_reg(8);
780 in_reg(9);
781 in_reg(10);
782 in_reg(11);
783 in_reg(12);
784 in_reg(13);
785 in_reg(14);
786 in_reg(15);
787
788 static ssize_t show_in16(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[16]) -
792 NEG12_OFFSET);
793 }
794 static ssize_t show_in16_min(struct device *dev, struct device_attribute *attr, char *buf)
795 {
796 struct adm1026_data *data = adm1026_update_device(dev);
797 return sprintf(buf,"%d\n", INS_FROM_REG(16, data->in_min[16])
798 - NEG12_OFFSET);
799 }
800 static ssize_t set_in16_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
801 {
802 struct i2c_client *client = to_i2c_client(dev);
803 struct adm1026_data *data = i2c_get_clientdata(client);
804 int val = simple_strtol(buf, NULL, 10);
805
806 mutex_lock(&data->update_lock);
807 data->in_min[16] = INS_TO_REG(16, val + NEG12_OFFSET);
808 adm1026_write_value(client, ADM1026_REG_IN_MIN[16], data->in_min[16]);
809 mutex_unlock(&data->update_lock);
810 return count;
811 }
812 static ssize_t show_in16_max(struct device *dev, struct device_attribute *attr, char *buf)
813 {
814 struct adm1026_data *data = adm1026_update_device(dev);
815 return sprintf(buf,"%d\n", INS_FROM_REG(16, data->in_max[16])
816 - NEG12_OFFSET);
817 }
818 static ssize_t set_in16_max(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
819 {
820 struct i2c_client *client = to_i2c_client(dev);
821 struct adm1026_data *data = i2c_get_clientdata(client);
822 int val = simple_strtol(buf, NULL, 10);
823
824 mutex_lock(&data->update_lock);
825 data->in_max[16] = INS_TO_REG(16, val+NEG12_OFFSET);
826 adm1026_write_value(client, ADM1026_REG_IN_MAX[16], data->in_max[16]);
827 mutex_unlock(&data->update_lock);
828 return count;
829 }
830
831 static SENSOR_DEVICE_ATTR(in16_input, S_IRUGO, show_in16, NULL, 16);
832 static SENSOR_DEVICE_ATTR(in16_min, S_IRUGO | S_IWUSR, show_in16_min, set_in16_min, 16);
833 static SENSOR_DEVICE_ATTR(in16_max, S_IRUGO | S_IWUSR, show_in16_max, set_in16_max, 16);
834
835
836
837
838 /* Now add fan read/write functions */
839
840 static ssize_t show_fan(struct device *dev, struct device_attribute *attr,
841 char *buf)
842 {
843 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
844 int nr = sensor_attr->index;
845 struct adm1026_data *data = adm1026_update_device(dev);
846 return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan[nr],
847 data->fan_div[nr]));
848 }
849 static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr,
850 char *buf)
851 {
852 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
853 int nr = sensor_attr->index;
854 struct adm1026_data *data = adm1026_update_device(dev);
855 return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan_min[nr],
856 data->fan_div[nr]));
857 }
858 static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
859 const char *buf, size_t count)
860 {
861 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
862 int nr = sensor_attr->index;
863 struct i2c_client *client = to_i2c_client(dev);
864 struct adm1026_data *data = i2c_get_clientdata(client);
865 int val = simple_strtol(buf, NULL, 10);
866
867 mutex_lock(&data->update_lock);
868 data->fan_min[nr] = FAN_TO_REG(val, data->fan_div[nr]);
869 adm1026_write_value(client, ADM1026_REG_FAN_MIN(nr),
870 data->fan_min[nr]);
871 mutex_unlock(&data->update_lock);
872 return count;
873 }
874
875 #define fan_offset(offset) \
876 static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan, NULL, \
877 offset - 1); \
878 static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
879 show_fan_min, set_fan_min, offset - 1);
880
881 fan_offset(1);
882 fan_offset(2);
883 fan_offset(3);
884 fan_offset(4);
885 fan_offset(5);
886 fan_offset(6);
887 fan_offset(7);
888 fan_offset(8);
889
890 /* Adjust fan_min to account for new fan divisor */
891 static void fixup_fan_min(struct device *dev, int fan, int old_div)
892 {
893 struct i2c_client *client = to_i2c_client(dev);
894 struct adm1026_data *data = i2c_get_clientdata(client);
895 int new_min;
896 int new_div = data->fan_div[fan];
897
898 /* 0 and 0xff are special. Don't adjust them */
899 if (data->fan_min[fan] == 0 || data->fan_min[fan] == 0xff) {
900 return;
901 }
902
903 new_min = data->fan_min[fan] * old_div / new_div;
904 new_min = SENSORS_LIMIT(new_min, 1, 254);
905 data->fan_min[fan] = new_min;
906 adm1026_write_value(client, ADM1026_REG_FAN_MIN(fan), new_min);
907 }
908
909 /* Now add fan_div read/write functions */
910 static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr,
911 char *buf)
912 {
913 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
914 int nr = sensor_attr->index;
915 struct adm1026_data *data = adm1026_update_device(dev);
916 return sprintf(buf,"%d\n", data->fan_div[nr]);
917 }
918 static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
919 const char *buf, size_t count)
920 {
921 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
922 int nr = sensor_attr->index;
923 struct i2c_client *client = to_i2c_client(dev);
924 struct adm1026_data *data = i2c_get_clientdata(client);
925 int val,orig_div,new_div,shift;
926
927 val = simple_strtol(buf, NULL, 10);
928 new_div = DIV_TO_REG(val);
929 if (new_div == 0) {
930 return -EINVAL;
931 }
932 mutex_lock(&data->update_lock);
933 orig_div = data->fan_div[nr];
934 data->fan_div[nr] = DIV_FROM_REG(new_div);
935
936 if (nr < 4) { /* 0 <= nr < 4 */
937 shift = 2 * nr;
938 adm1026_write_value(client, ADM1026_REG_FAN_DIV_0_3,
939 ((DIV_TO_REG(orig_div) & (~(0x03 << shift))) |
940 (new_div << shift)));
941 } else { /* 3 < nr < 8 */
942 shift = 2 * (nr - 4);
943 adm1026_write_value(client, ADM1026_REG_FAN_DIV_4_7,
944 ((DIV_TO_REG(orig_div) & (~(0x03 << (2 * shift)))) |
945 (new_div << shift)));
946 }
947
948 if (data->fan_div[nr] != orig_div) {
949 fixup_fan_min(dev,nr,orig_div);
950 }
951 mutex_unlock(&data->update_lock);
952 return count;
953 }
954
955 #define fan_offset_div(offset) \
956 static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \
957 show_fan_div, set_fan_div, offset - 1);
958
959 fan_offset_div(1);
960 fan_offset_div(2);
961 fan_offset_div(3);
962 fan_offset_div(4);
963 fan_offset_div(5);
964 fan_offset_div(6);
965 fan_offset_div(7);
966 fan_offset_div(8);
967
968 /* Temps */
969 static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
970 char *buf)
971 {
972 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
973 int nr = sensor_attr->index;
974 struct adm1026_data *data = adm1026_update_device(dev);
975 return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp[nr]));
976 }
977 static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr,
978 char *buf)
979 {
980 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
981 int nr = sensor_attr->index;
982 struct adm1026_data *data = adm1026_update_device(dev);
983 return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_min[nr]));
984 }
985 static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
986 const char *buf, size_t count)
987 {
988 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
989 int nr = sensor_attr->index;
990 struct i2c_client *client = to_i2c_client(dev);
991 struct adm1026_data *data = i2c_get_clientdata(client);
992 int val = simple_strtol(buf, NULL, 10);
993
994 mutex_lock(&data->update_lock);
995 data->temp_min[nr] = TEMP_TO_REG(val);
996 adm1026_write_value(client, ADM1026_REG_TEMP_MIN[nr],
997 data->temp_min[nr]);
998 mutex_unlock(&data->update_lock);
999 return count;
1000 }
1001 static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr,
1002 char *buf)
1003 {
1004 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1005 int nr = sensor_attr->index;
1006 struct adm1026_data *data = adm1026_update_device(dev);
1007 return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_max[nr]));
1008 }
1009 static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
1010 const char *buf, size_t count)
1011 {
1012 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1013 int nr = sensor_attr->index;
1014 struct i2c_client *client = to_i2c_client(dev);
1015 struct adm1026_data *data = i2c_get_clientdata(client);
1016 int val = simple_strtol(buf, NULL, 10);
1017
1018 mutex_lock(&data->update_lock);
1019 data->temp_max[nr] = TEMP_TO_REG(val);
1020 adm1026_write_value(client, ADM1026_REG_TEMP_MAX[nr],
1021 data->temp_max[nr]);
1022 mutex_unlock(&data->update_lock);
1023 return count;
1024 }
1025
1026 #define temp_reg(offset) \
1027 static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp, \
1028 NULL, offset - 1); \
1029 static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \
1030 show_temp_min, set_temp_min, offset - 1); \
1031 static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \
1032 show_temp_max, set_temp_max, offset - 1);
1033
1034
1035 temp_reg(1);
1036 temp_reg(2);
1037 temp_reg(3);
1038
1039 static ssize_t show_temp_offset(struct device *dev,
1040 struct device_attribute *attr, char *buf)
1041 {
1042 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1043 int nr = sensor_attr->index;
1044 struct adm1026_data *data = adm1026_update_device(dev);
1045 return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_offset[nr]));
1046 }
1047 static ssize_t set_temp_offset(struct device *dev,
1048 struct device_attribute *attr, const char *buf,
1049 size_t count)
1050 {
1051 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1052 int nr = sensor_attr->index;
1053 struct i2c_client *client = to_i2c_client(dev);
1054 struct adm1026_data *data = i2c_get_clientdata(client);
1055 int val = simple_strtol(buf, NULL, 10);
1056
1057 mutex_lock(&data->update_lock);
1058 data->temp_offset[nr] = TEMP_TO_REG(val);
1059 adm1026_write_value(client, ADM1026_REG_TEMP_OFFSET[nr],
1060 data->temp_offset[nr]);
1061 mutex_unlock(&data->update_lock);
1062 return count;
1063 }
1064
1065 #define temp_offset_reg(offset) \
1066 static SENSOR_DEVICE_ATTR(temp##offset##_offset, S_IRUGO | S_IWUSR, \
1067 show_temp_offset, set_temp_offset, offset - 1);
1068
1069 temp_offset_reg(1);
1070 temp_offset_reg(2);
1071 temp_offset_reg(3);
1072
1073 static ssize_t show_temp_auto_point1_temp_hyst(struct device *dev,
1074 struct device_attribute *attr, char *buf)
1075 {
1076 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1077 int nr = sensor_attr->index;
1078 struct adm1026_data *data = adm1026_update_device(dev);
1079 return sprintf(buf,"%d\n", TEMP_FROM_REG(
1080 ADM1026_FAN_ACTIVATION_TEMP_HYST + data->temp_tmin[nr]));
1081 }
1082 static ssize_t show_temp_auto_point2_temp(struct device *dev,
1083 struct device_attribute *attr, char *buf)
1084 {
1085 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1086 int nr = sensor_attr->index;
1087 struct adm1026_data *data = adm1026_update_device(dev);
1088 return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_tmin[nr] +
1089 ADM1026_FAN_CONTROL_TEMP_RANGE));
1090 }
1091 static ssize_t show_temp_auto_point1_temp(struct device *dev,
1092 struct device_attribute *attr, char *buf)
1093 {
1094 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1095 int nr = sensor_attr->index;
1096 struct adm1026_data *data = adm1026_update_device(dev);
1097 return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_tmin[nr]));
1098 }
1099 static ssize_t set_temp_auto_point1_temp(struct device *dev,
1100 struct device_attribute *attr, const char *buf, size_t count)
1101 {
1102 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1103 int nr = sensor_attr->index;
1104 struct i2c_client *client = to_i2c_client(dev);
1105 struct adm1026_data *data = i2c_get_clientdata(client);
1106 int val = simple_strtol(buf, NULL, 10);
1107
1108 mutex_lock(&data->update_lock);
1109 data->temp_tmin[nr] = TEMP_TO_REG(val);
1110 adm1026_write_value(client, ADM1026_REG_TEMP_TMIN[nr],
1111 data->temp_tmin[nr]);
1112 mutex_unlock(&data->update_lock);
1113 return count;
1114 }
1115
1116 #define temp_auto_point(offset) \
1117 static SENSOR_DEVICE_ATTR(temp##offset##_auto_point1_temp, S_IRUGO | S_IWUSR, \
1118 show_temp_auto_point1_temp, set_temp_auto_point1_temp, \
1119 offset - 1); \
1120 static SENSOR_DEVICE_ATTR(temp##offset##_auto_point1_temp_hyst, S_IRUGO, \
1121 show_temp_auto_point1_temp_hyst, NULL, offset - 1); \
1122 static SENSOR_DEVICE_ATTR(temp##offset##_auto_point2_temp, S_IRUGO, \
1123 show_temp_auto_point2_temp, NULL, offset - 1);
1124
1125 temp_auto_point(1);
1126 temp_auto_point(2);
1127 temp_auto_point(3);
1128
1129 static ssize_t show_temp_crit_enable(struct device *dev,
1130 struct device_attribute *attr, char *buf)
1131 {
1132 struct adm1026_data *data = adm1026_update_device(dev);
1133 return sprintf(buf,"%d\n", (data->config1 & CFG1_THERM_HOT) >> 4);
1134 }
1135 static ssize_t set_temp_crit_enable(struct device *dev,
1136 struct device_attribute *attr, const char *buf, size_t count)
1137 {
1138 struct i2c_client *client = to_i2c_client(dev);
1139 struct adm1026_data *data = i2c_get_clientdata(client);
1140 int val = simple_strtol(buf, NULL, 10);
1141
1142 if ((val == 1) || (val==0)) {
1143 mutex_lock(&data->update_lock);
1144 data->config1 = (data->config1 & ~CFG1_THERM_HOT) | (val << 4);
1145 adm1026_write_value(client, ADM1026_REG_CONFIG1,
1146 data->config1);
1147 mutex_unlock(&data->update_lock);
1148 }
1149 return count;
1150 }
1151
1152 #define temp_crit_enable(offset) \
1153 static DEVICE_ATTR(temp##offset##_crit_enable, S_IRUGO | S_IWUSR, \
1154 show_temp_crit_enable, set_temp_crit_enable);
1155
1156 temp_crit_enable(1);
1157 temp_crit_enable(2);
1158 temp_crit_enable(3);
1159
1160 static ssize_t show_temp_crit(struct device *dev,
1161 struct device_attribute *attr, char *buf)
1162 {
1163 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1164 int nr = sensor_attr->index;
1165 struct adm1026_data *data = adm1026_update_device(dev);
1166 return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_crit[nr]));
1167 }
1168 static ssize_t set_temp_crit(struct device *dev, struct device_attribute *attr,
1169 const char *buf, size_t count)
1170 {
1171 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1172 int nr = sensor_attr->index;
1173 struct i2c_client *client = to_i2c_client(dev);
1174 struct adm1026_data *data = i2c_get_clientdata(client);
1175 int val = simple_strtol(buf, NULL, 10);
1176
1177 mutex_lock(&data->update_lock);
1178 data->temp_crit[nr] = TEMP_TO_REG(val);
1179 adm1026_write_value(client, ADM1026_REG_TEMP_THERM[nr],
1180 data->temp_crit[nr]);
1181 mutex_unlock(&data->update_lock);
1182 return count;
1183 }
1184
1185 #define temp_crit_reg(offset) \
1186 static SENSOR_DEVICE_ATTR(temp##offset##_crit, S_IRUGO | S_IWUSR, \
1187 show_temp_crit, set_temp_crit, offset - 1);
1188
1189 temp_crit_reg(1);
1190 temp_crit_reg(2);
1191 temp_crit_reg(3);
1192
1193 static ssize_t show_analog_out_reg(struct device *dev, struct device_attribute *attr, char *buf)
1194 {
1195 struct adm1026_data *data = adm1026_update_device(dev);
1196 return sprintf(buf,"%d\n", DAC_FROM_REG(data->analog_out));
1197 }
1198 static ssize_t set_analog_out_reg(struct device *dev, struct device_attribute *attr, const char *buf,
1199 size_t count)
1200 {
1201 struct i2c_client *client = to_i2c_client(dev);
1202 struct adm1026_data *data = i2c_get_clientdata(client);
1203 int val = simple_strtol(buf, NULL, 10);
1204
1205 mutex_lock(&data->update_lock);
1206 data->analog_out = DAC_TO_REG(val);
1207 adm1026_write_value(client, ADM1026_REG_DAC, data->analog_out);
1208 mutex_unlock(&data->update_lock);
1209 return count;
1210 }
1211
1212 static DEVICE_ATTR(analog_out, S_IRUGO | S_IWUSR, show_analog_out_reg,
1213 set_analog_out_reg);
1214
1215 static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf)
1216 {
1217 struct adm1026_data *data = adm1026_update_device(dev);
1218 return sprintf(buf,"%d\n", vid_from_reg(data->vid & 0x3f, data->vrm));
1219 }
1220 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
1221
1222 static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf)
1223 {
1224 struct adm1026_data *data = adm1026_update_device(dev);
1225 return sprintf(buf,"%d\n", data->vrm);
1226 }
1227 static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf,
1228 size_t count)
1229 {
1230 struct i2c_client *client = to_i2c_client(dev);
1231 struct adm1026_data *data = i2c_get_clientdata(client);
1232
1233 data->vrm = simple_strtol(buf, NULL, 10);
1234 return count;
1235 }
1236
1237 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
1238
1239 static ssize_t show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
1240 {
1241 struct adm1026_data *data = adm1026_update_device(dev);
1242 return sprintf(buf, "%ld\n", (long) (data->alarms));
1243 }
1244
1245 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
1246
1247 static ssize_t show_alarm_mask(struct device *dev, struct device_attribute *attr, char *buf)
1248 {
1249 struct adm1026_data *data = adm1026_update_device(dev);
1250 return sprintf(buf,"%ld\n", data->alarm_mask);
1251 }
1252 static ssize_t set_alarm_mask(struct device *dev, struct device_attribute *attr, const char *buf,
1253 size_t count)
1254 {
1255 struct i2c_client *client = to_i2c_client(dev);
1256 struct adm1026_data *data = i2c_get_clientdata(client);
1257 int val = simple_strtol(buf, NULL, 10);
1258 unsigned long mask;
1259
1260 mutex_lock(&data->update_lock);
1261 data->alarm_mask = val & 0x7fffffff;
1262 mask = data->alarm_mask
1263 | (data->gpio_mask & 0x10000 ? 0x80000000 : 0);
1264 adm1026_write_value(client, ADM1026_REG_MASK1,
1265 mask & 0xff);
1266 mask >>= 8;
1267 adm1026_write_value(client, ADM1026_REG_MASK2,
1268 mask & 0xff);
1269 mask >>= 8;
1270 adm1026_write_value(client, ADM1026_REG_MASK3,
1271 mask & 0xff);
1272 mask >>= 8;
1273 adm1026_write_value(client, ADM1026_REG_MASK4,
1274 mask & 0xff);
1275 mutex_unlock(&data->update_lock);
1276 return count;
1277 }
1278
1279 static DEVICE_ATTR(alarm_mask, S_IRUGO | S_IWUSR, show_alarm_mask,
1280 set_alarm_mask);
1281
1282
1283 static ssize_t show_gpio(struct device *dev, struct device_attribute *attr, char *buf)
1284 {
1285 struct adm1026_data *data = adm1026_update_device(dev);
1286 return sprintf(buf,"%ld\n", data->gpio);
1287 }
1288 static ssize_t set_gpio(struct device *dev, struct device_attribute *attr, const char *buf,
1289 size_t count)
1290 {
1291 struct i2c_client *client = to_i2c_client(dev);
1292 struct adm1026_data *data = i2c_get_clientdata(client);
1293 int val = simple_strtol(buf, NULL, 10);
1294 long gpio;
1295
1296 mutex_lock(&data->update_lock);
1297 data->gpio = val & 0x1ffff;
1298 gpio = data->gpio;
1299 adm1026_write_value(client, ADM1026_REG_GPIO_STATUS_0_7,gpio & 0xff);
1300 gpio >>= 8;
1301 adm1026_write_value(client, ADM1026_REG_GPIO_STATUS_8_15,gpio & 0xff);
1302 gpio = ((gpio >> 1) & 0x80) | (data->alarms >> 24 & 0x7f);
1303 adm1026_write_value(client, ADM1026_REG_STATUS4,gpio & 0xff);
1304 mutex_unlock(&data->update_lock);
1305 return count;
1306 }
1307
1308 static DEVICE_ATTR(gpio, S_IRUGO | S_IWUSR, show_gpio, set_gpio);
1309
1310
1311 static ssize_t show_gpio_mask(struct device *dev, struct device_attribute *attr, char *buf)
1312 {
1313 struct adm1026_data *data = adm1026_update_device(dev);
1314 return sprintf(buf,"%ld\n", data->gpio_mask);
1315 }
1316 static ssize_t set_gpio_mask(struct device *dev, struct device_attribute *attr, const char *buf,
1317 size_t count)
1318 {
1319 struct i2c_client *client = to_i2c_client(dev);
1320 struct adm1026_data *data = i2c_get_clientdata(client);
1321 int val = simple_strtol(buf, NULL, 10);
1322 long mask;
1323
1324 mutex_lock(&data->update_lock);
1325 data->gpio_mask = val & 0x1ffff;
1326 mask = data->gpio_mask;
1327 adm1026_write_value(client, ADM1026_REG_GPIO_MASK_0_7,mask & 0xff);
1328 mask >>= 8;
1329 adm1026_write_value(client, ADM1026_REG_GPIO_MASK_8_15,mask & 0xff);
1330 mask = ((mask >> 1) & 0x80) | (data->alarm_mask >> 24 & 0x7f);
1331 adm1026_write_value(client, ADM1026_REG_MASK1,mask & 0xff);
1332 mutex_unlock(&data->update_lock);
1333 return count;
1334 }
1335
1336 static DEVICE_ATTR(gpio_mask, S_IRUGO | S_IWUSR, show_gpio_mask, set_gpio_mask);
1337
1338 static ssize_t show_pwm_reg(struct device *dev, struct device_attribute *attr, char *buf)
1339 {
1340 struct adm1026_data *data = adm1026_update_device(dev);
1341 return sprintf(buf,"%d\n", PWM_FROM_REG(data->pwm1.pwm));
1342 }
1343 static ssize_t set_pwm_reg(struct device *dev, struct device_attribute *attr, const char *buf,
1344 size_t count)
1345 {
1346 struct i2c_client *client = to_i2c_client(dev);
1347 struct adm1026_data *data = i2c_get_clientdata(client);
1348
1349 if (data->pwm1.enable == 1) {
1350 int val = simple_strtol(buf, NULL, 10);
1351
1352 mutex_lock(&data->update_lock);
1353 data->pwm1.pwm = PWM_TO_REG(val);
1354 adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm);
1355 mutex_unlock(&data->update_lock);
1356 }
1357 return count;
1358 }
1359 static ssize_t show_auto_pwm_min(struct device *dev, struct device_attribute *attr, char *buf)
1360 {
1361 struct adm1026_data *data = adm1026_update_device(dev);
1362 return sprintf(buf,"%d\n", data->pwm1.auto_pwm_min);
1363 }
1364 static ssize_t set_auto_pwm_min(struct device *dev, struct device_attribute *attr, const char *buf,
1365 size_t count)
1366 {
1367 struct i2c_client *client = to_i2c_client(dev);
1368 struct adm1026_data *data = i2c_get_clientdata(client);
1369 int val = simple_strtol(buf, NULL, 10);
1370
1371 mutex_lock(&data->update_lock);
1372 data->pwm1.auto_pwm_min = SENSORS_LIMIT(val,0,255);
1373 if (data->pwm1.enable == 2) { /* apply immediately */
1374 data->pwm1.pwm = PWM_TO_REG((data->pwm1.pwm & 0x0f) |
1375 PWM_MIN_TO_REG(data->pwm1.auto_pwm_min));
1376 adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm);
1377 }
1378 mutex_unlock(&data->update_lock);
1379 return count;
1380 }
1381 static ssize_t show_auto_pwm_max(struct device *dev, struct device_attribute *attr, char *buf)
1382 {
1383 return sprintf(buf,"%d\n", ADM1026_PWM_MAX);
1384 }
1385 static ssize_t show_pwm_enable(struct device *dev, struct device_attribute *attr, char *buf)
1386 {
1387 struct adm1026_data *data = adm1026_update_device(dev);
1388 return sprintf(buf,"%d\n", data->pwm1.enable);
1389 }
1390 static ssize_t set_pwm_enable(struct device *dev, struct device_attribute *attr, const char *buf,
1391 size_t count)
1392 {
1393 struct i2c_client *client = to_i2c_client(dev);
1394 struct adm1026_data *data = i2c_get_clientdata(client);
1395 int val = simple_strtol(buf, NULL, 10);
1396 int old_enable;
1397
1398 if ((val >= 0) && (val < 3)) {
1399 mutex_lock(&data->update_lock);
1400 old_enable = data->pwm1.enable;
1401 data->pwm1.enable = val;
1402 data->config1 = (data->config1 & ~CFG1_PWM_AFC)
1403 | ((val == 2) ? CFG1_PWM_AFC : 0);
1404 adm1026_write_value(client, ADM1026_REG_CONFIG1,
1405 data->config1);
1406 if (val == 2) { /* apply pwm1_auto_pwm_min to pwm1 */
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,
1410 data->pwm1.pwm);
1411 } else if (!((old_enable == 1) && (val == 1))) {
1412 /* set pwm to safe value */
1413 data->pwm1.pwm = 255;
1414 adm1026_write_value(client, ADM1026_REG_PWM,
1415 data->pwm1.pwm);
1416 }
1417 mutex_unlock(&data->update_lock);
1418 }
1419 return count;
1420 }
1421
1422 /* enable PWM fan control */
1423 static DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm_reg, set_pwm_reg);
1424 static DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, show_pwm_reg, set_pwm_reg);
1425 static DEVICE_ATTR(pwm3, S_IRUGO | S_IWUSR, show_pwm_reg, set_pwm_reg);
1426 static DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, show_pwm_enable,
1427 set_pwm_enable);
1428 static DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR, show_pwm_enable,
1429 set_pwm_enable);
1430 static DEVICE_ATTR(pwm3_enable, S_IRUGO | S_IWUSR, show_pwm_enable,
1431 set_pwm_enable);
1432 static DEVICE_ATTR(temp1_auto_point1_pwm, S_IRUGO | S_IWUSR,
1433 show_auto_pwm_min, set_auto_pwm_min);
1434 static DEVICE_ATTR(temp2_auto_point1_pwm, S_IRUGO | S_IWUSR,
1435 show_auto_pwm_min, set_auto_pwm_min);
1436 static DEVICE_ATTR(temp3_auto_point1_pwm, S_IRUGO | S_IWUSR,
1437 show_auto_pwm_min, set_auto_pwm_min);
1438
1439 static DEVICE_ATTR(temp1_auto_point2_pwm, S_IRUGO, show_auto_pwm_max, NULL);
1440 static DEVICE_ATTR(temp2_auto_point2_pwm, S_IRUGO, show_auto_pwm_max, NULL);
1441 static DEVICE_ATTR(temp3_auto_point2_pwm, S_IRUGO, show_auto_pwm_max, NULL);
1442
1443 static struct attribute *adm1026_attributes[] = {
1444 &sensor_dev_attr_in0_input.dev_attr.attr,
1445 &sensor_dev_attr_in0_max.dev_attr.attr,
1446 &sensor_dev_attr_in0_min.dev_attr.attr,
1447 &sensor_dev_attr_in1_input.dev_attr.attr,
1448 &sensor_dev_attr_in1_max.dev_attr.attr,
1449 &sensor_dev_attr_in1_min.dev_attr.attr,
1450 &sensor_dev_attr_in2_input.dev_attr.attr,
1451 &sensor_dev_attr_in2_max.dev_attr.attr,
1452 &sensor_dev_attr_in2_min.dev_attr.attr,
1453 &sensor_dev_attr_in3_input.dev_attr.attr,
1454 &sensor_dev_attr_in3_max.dev_attr.attr,
1455 &sensor_dev_attr_in3_min.dev_attr.attr,
1456 &sensor_dev_attr_in4_input.dev_attr.attr,
1457 &sensor_dev_attr_in4_max.dev_attr.attr,
1458 &sensor_dev_attr_in4_min.dev_attr.attr,
1459 &sensor_dev_attr_in5_input.dev_attr.attr,
1460 &sensor_dev_attr_in5_max.dev_attr.attr,
1461 &sensor_dev_attr_in5_min.dev_attr.attr,
1462 &sensor_dev_attr_in6_input.dev_attr.attr,
1463 &sensor_dev_attr_in6_max.dev_attr.attr,
1464 &sensor_dev_attr_in6_min.dev_attr.attr,
1465 &sensor_dev_attr_in7_input.dev_attr.attr,
1466 &sensor_dev_attr_in7_max.dev_attr.attr,
1467 &sensor_dev_attr_in7_min.dev_attr.attr,
1468 &sensor_dev_attr_in8_input.dev_attr.attr,
1469 &sensor_dev_attr_in8_max.dev_attr.attr,
1470 &sensor_dev_attr_in8_min.dev_attr.attr,
1471 &sensor_dev_attr_in9_input.dev_attr.attr,
1472 &sensor_dev_attr_in9_max.dev_attr.attr,
1473 &sensor_dev_attr_in9_min.dev_attr.attr,
1474 &sensor_dev_attr_in10_input.dev_attr.attr,
1475 &sensor_dev_attr_in10_max.dev_attr.attr,
1476 &sensor_dev_attr_in10_min.dev_attr.attr,
1477 &sensor_dev_attr_in11_input.dev_attr.attr,
1478 &sensor_dev_attr_in11_max.dev_attr.attr,
1479 &sensor_dev_attr_in11_min.dev_attr.attr,
1480 &sensor_dev_attr_in12_input.dev_attr.attr,
1481 &sensor_dev_attr_in12_max.dev_attr.attr,
1482 &sensor_dev_attr_in12_min.dev_attr.attr,
1483 &sensor_dev_attr_in13_input.dev_attr.attr,
1484 &sensor_dev_attr_in13_max.dev_attr.attr,
1485 &sensor_dev_attr_in13_min.dev_attr.attr,
1486 &sensor_dev_attr_in14_input.dev_attr.attr,
1487 &sensor_dev_attr_in14_max.dev_attr.attr,
1488 &sensor_dev_attr_in14_min.dev_attr.attr,
1489 &sensor_dev_attr_in15_input.dev_attr.attr,
1490 &sensor_dev_attr_in15_max.dev_attr.attr,
1491 &sensor_dev_attr_in15_min.dev_attr.attr,
1492 &sensor_dev_attr_in16_input.dev_attr.attr,
1493 &sensor_dev_attr_in16_max.dev_attr.attr,
1494 &sensor_dev_attr_in16_min.dev_attr.attr,
1495 &sensor_dev_attr_fan1_input.dev_attr.attr,
1496 &sensor_dev_attr_fan1_div.dev_attr.attr,
1497 &sensor_dev_attr_fan1_min.dev_attr.attr,
1498 &sensor_dev_attr_fan2_input.dev_attr.attr,
1499 &sensor_dev_attr_fan2_div.dev_attr.attr,
1500 &sensor_dev_attr_fan2_min.dev_attr.attr,
1501 &sensor_dev_attr_fan3_input.dev_attr.attr,
1502 &sensor_dev_attr_fan3_div.dev_attr.attr,
1503 &sensor_dev_attr_fan3_min.dev_attr.attr,
1504 &sensor_dev_attr_fan4_input.dev_attr.attr,
1505 &sensor_dev_attr_fan4_div.dev_attr.attr,
1506 &sensor_dev_attr_fan4_min.dev_attr.attr,
1507 &sensor_dev_attr_fan5_input.dev_attr.attr,
1508 &sensor_dev_attr_fan5_div.dev_attr.attr,
1509 &sensor_dev_attr_fan5_min.dev_attr.attr,
1510 &sensor_dev_attr_fan6_input.dev_attr.attr,
1511 &sensor_dev_attr_fan6_div.dev_attr.attr,
1512 &sensor_dev_attr_fan6_min.dev_attr.attr,
1513 &sensor_dev_attr_fan7_input.dev_attr.attr,
1514 &sensor_dev_attr_fan7_div.dev_attr.attr,
1515 &sensor_dev_attr_fan7_min.dev_attr.attr,
1516 &sensor_dev_attr_fan8_input.dev_attr.attr,
1517 &sensor_dev_attr_fan8_div.dev_attr.attr,
1518 &sensor_dev_attr_fan8_min.dev_attr.attr,
1519 &sensor_dev_attr_temp1_input.dev_attr.attr,
1520 &sensor_dev_attr_temp1_max.dev_attr.attr,
1521 &sensor_dev_attr_temp1_min.dev_attr.attr,
1522 &sensor_dev_attr_temp2_input.dev_attr.attr,
1523 &sensor_dev_attr_temp2_max.dev_attr.attr,
1524 &sensor_dev_attr_temp2_min.dev_attr.attr,
1525 &sensor_dev_attr_temp3_input.dev_attr.attr,
1526 &sensor_dev_attr_temp3_max.dev_attr.attr,
1527 &sensor_dev_attr_temp3_min.dev_attr.attr,
1528 &sensor_dev_attr_temp1_offset.dev_attr.attr,
1529 &sensor_dev_attr_temp2_offset.dev_attr.attr,
1530 &sensor_dev_attr_temp3_offset.dev_attr.attr,
1531 &sensor_dev_attr_temp1_auto_point1_temp.dev_attr.attr,
1532 &sensor_dev_attr_temp2_auto_point1_temp.dev_attr.attr,
1533 &sensor_dev_attr_temp3_auto_point1_temp.dev_attr.attr,
1534 &sensor_dev_attr_temp1_auto_point1_temp_hyst.dev_attr.attr,
1535 &sensor_dev_attr_temp2_auto_point1_temp_hyst.dev_attr.attr,
1536 &sensor_dev_attr_temp3_auto_point1_temp_hyst.dev_attr.attr,
1537 &sensor_dev_attr_temp1_auto_point2_temp.dev_attr.attr,
1538 &sensor_dev_attr_temp2_auto_point2_temp.dev_attr.attr,
1539 &sensor_dev_attr_temp3_auto_point2_temp.dev_attr.attr,
1540 &sensor_dev_attr_temp1_crit.dev_attr.attr,
1541 &sensor_dev_attr_temp2_crit.dev_attr.attr,
1542 &sensor_dev_attr_temp3_crit.dev_attr.attr,
1543 &dev_attr_temp1_crit_enable.attr,
1544 &dev_attr_temp2_crit_enable.attr,
1545 &dev_attr_temp3_crit_enable.attr,
1546 &dev_attr_cpu0_vid.attr,
1547 &dev_attr_vrm.attr,
1548 &dev_attr_alarms.attr,
1549 &dev_attr_alarm_mask.attr,
1550 &dev_attr_gpio.attr,
1551 &dev_attr_gpio_mask.attr,
1552 &dev_attr_pwm1.attr,
1553 &dev_attr_pwm2.attr,
1554 &dev_attr_pwm3.attr,
1555 &dev_attr_pwm1_enable.attr,
1556 &dev_attr_pwm2_enable.attr,
1557 &dev_attr_pwm3_enable.attr,
1558 &dev_attr_temp1_auto_point1_pwm.attr,
1559 &dev_attr_temp2_auto_point1_pwm.attr,
1560 &dev_attr_temp3_auto_point1_pwm.attr,
1561 &dev_attr_temp1_auto_point2_pwm.attr,
1562 &dev_attr_temp2_auto_point2_pwm.attr,
1563 &dev_attr_temp3_auto_point2_pwm.attr,
1564 &dev_attr_analog_out.attr,
1565 NULL
1566 };
1567
1568 static const struct attribute_group adm1026_group = {
1569 .attrs = adm1026_attributes,
1570 };
1571
1572 static int adm1026_detect(struct i2c_adapter *adapter, int address,
1573 int kind)
1574 {
1575 int company, verstep;
1576 struct i2c_client *new_client;
1577 struct adm1026_data *data;
1578 int err = 0;
1579 const char *type_name = "";
1580
1581 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
1582 /* We need to be able to do byte I/O */
1583 goto exit;
1584 };
1585
1586 /* OK. For now, we presume we have a valid client. We now create the
1587 client structure, even though we cannot fill it completely yet.
1588 But it allows us to access adm1026_{read,write}_value. */
1589
1590 if (!(data = kzalloc(sizeof(struct adm1026_data), GFP_KERNEL))) {
1591 err = -ENOMEM;
1592 goto exit;
1593 }
1594
1595 new_client = &data->client;
1596 i2c_set_clientdata(new_client, data);
1597 new_client->addr = address;
1598 new_client->adapter = adapter;
1599 new_client->driver = &adm1026_driver;
1600 new_client->flags = 0;
1601
1602 /* Now, we do the remaining detection. */
1603
1604 company = adm1026_read_value(new_client, ADM1026_REG_COMPANY);
1605 verstep = adm1026_read_value(new_client, ADM1026_REG_VERSTEP);
1606
1607 dev_dbg(&new_client->dev, "Detecting device at %d,0x%02x with"
1608 " COMPANY: 0x%02x and VERSTEP: 0x%02x\n",
1609 i2c_adapter_id(new_client->adapter), new_client->addr,
1610 company, verstep);
1611
1612 /* If auto-detecting, Determine the chip type. */
1613 if (kind <= 0) {
1614 dev_dbg(&new_client->dev, "Autodetecting device at %d,0x%02x "
1615 "...\n", i2c_adapter_id(adapter), address);
1616 if (company == ADM1026_COMPANY_ANALOG_DEV
1617 && verstep == ADM1026_VERSTEP_ADM1026) {
1618 kind = adm1026;
1619 } else if (company == ADM1026_COMPANY_ANALOG_DEV
1620 && (verstep & 0xf0) == ADM1026_VERSTEP_GENERIC) {
1621 dev_err(&adapter->dev, ": Unrecognized stepping "
1622 "0x%02x. Defaulting to ADM1026.\n", verstep);
1623 kind = adm1026;
1624 } else if ((verstep & 0xf0) == ADM1026_VERSTEP_GENERIC) {
1625 dev_err(&adapter->dev, ": Found version/stepping "
1626 "0x%02x. Assuming generic ADM1026.\n",
1627 verstep);
1628 kind = any_chip;
1629 } else {
1630 dev_dbg(&new_client->dev, ": Autodetection "
1631 "failed\n");
1632 /* Not an ADM1026 ... */
1633 if (kind == 0) { /* User used force=x,y */
1634 dev_err(&adapter->dev, "Generic ADM1026 not "
1635 "found at %d,0x%02x. Try "
1636 "force_adm1026.\n",
1637 i2c_adapter_id(adapter), address);
1638 }
1639 err = 0;
1640 goto exitfree;
1641 }
1642 }
1643
1644 /* Fill in the chip specific driver values */
1645 switch (kind) {
1646 case any_chip :
1647 type_name = "adm1026";
1648 break;
1649 case adm1026 :
1650 type_name = "adm1026";
1651 break;
1652 default :
1653 dev_err(&adapter->dev, ": Internal error, invalid "
1654 "kind (%d)!", kind);
1655 err = -EFAULT;
1656 goto exitfree;
1657 }
1658 strlcpy(new_client->name, type_name, I2C_NAME_SIZE);
1659
1660 /* Fill in the remaining client fields */
1661 data->type = kind;
1662 data->valid = 0;
1663 mutex_init(&data->update_lock);
1664
1665 /* Tell the I2C layer a new client has arrived */
1666 if ((err = i2c_attach_client(new_client)))
1667 goto exitfree;
1668
1669 /* Set the VRM version */
1670 data->vrm = vid_which_vrm();
1671
1672 /* Initialize the ADM1026 chip */
1673 adm1026_init_client(new_client);
1674
1675 /* Register sysfs hooks */
1676 if ((err = sysfs_create_group(&new_client->dev.kobj, &adm1026_group)))
1677 goto exitdetach;
1678
1679 data->class_dev = hwmon_device_register(&new_client->dev);
1680 if (IS_ERR(data->class_dev)) {
1681 err = PTR_ERR(data->class_dev);
1682 goto exitremove;
1683 }
1684
1685 return 0;
1686
1687 /* Error out and cleanup code */
1688 exitremove:
1689 sysfs_remove_group(&new_client->dev.kobj, &adm1026_group);
1690 exitdetach:
1691 i2c_detach_client(new_client);
1692 exitfree:
1693 kfree(data);
1694 exit:
1695 return err;
1696 }
1697
1698 static int adm1026_detach_client(struct i2c_client *client)
1699 {
1700 struct adm1026_data *data = i2c_get_clientdata(client);
1701 hwmon_device_unregister(data->class_dev);
1702 sysfs_remove_group(&client->dev.kobj, &adm1026_group);
1703 i2c_detach_client(client);
1704 kfree(data);
1705 return 0;
1706 }
1707
1708 static int __init sm_adm1026_init(void)
1709 {
1710 return i2c_add_driver(&adm1026_driver);
1711 }
1712
1713 static void __exit sm_adm1026_exit(void)
1714 {
1715 i2c_del_driver(&adm1026_driver);
1716 }
1717
1718 MODULE_LICENSE("GPL");
1719 MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, "
1720 "Justin Thiessen <jthiessen@penguincomputing.com>");
1721 MODULE_DESCRIPTION("ADM1026 driver");
1722
1723 module_init(sm_adm1026_init);
1724 module_exit(sm_adm1026_exit);
USB Experimental Work