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, 53 "List of GPIO pins (0-16) to program as outputs"); 54 module_param_array(gpio_inverted, int, NULL, 0); 55 MODULE_PARM_DESC(gpio_inverted, 56 "List of GPIO pins (0-16) to program as inverted"); 57 module_param_array(gpio_normal, int, NULL, 0); 58 MODULE_PARM_DESC(gpio_normal, 59 "List of GPIO pins (0-16) to program as 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 /* 94 * There are 10 general analog inputs and 7 dedicated inputs 95 * They are: 96 * 0 - 9 = AIN0 - AIN9 97 * 10 = Vbat 98 * 11 = 3.3V Standby 99 * 12 = 3.3V Main 100 * 13 = +5V 101 * 14 = Vccp (CPU core voltage) 102 * 15 = +12V 103 * 16 = -12V 104 */ 105 static u16 ADM1026_REG_IN[] = { 106 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 107 0x36, 0x37, 0x27, 0x29, 0x26, 0x2a, 108 0x2b, 0x2c, 0x2d, 0x2e, 0x2f 109 }; 110 static u16 ADM1026_REG_IN_MIN[] = { 111 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 112 0x5e, 0x5f, 0x6d, 0x49, 0x6b, 0x4a, 113 0x4b, 0x4c, 0x4d, 0x4e, 0x4f 114 }; 115 static u16 ADM1026_REG_IN_MAX[] = { 116 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 117 0x56, 0x57, 0x6c, 0x41, 0x6a, 0x42, 118 0x43, 0x44, 0x45, 0x46, 0x47 119 }; 120 121 /* 122 * Temperatures are: 123 * 0 - Internal 124 * 1 - External 1 125 * 2 - External 2 126 */ 127 static u16 ADM1026_REG_TEMP[] = { 0x1f, 0x28, 0x29 }; 128 static u16 ADM1026_REG_TEMP_MIN[] = { 0x69, 0x48, 0x49 }; 129 static u16 ADM1026_REG_TEMP_MAX[] = { 0x68, 0x40, 0x41 }; 130 static u16 ADM1026_REG_TEMP_TMIN[] = { 0x10, 0x11, 0x12 }; 131 static u16 ADM1026_REG_TEMP_THERM[] = { 0x0d, 0x0e, 0x0f }; 132 static u16 ADM1026_REG_TEMP_OFFSET[] = { 0x1e, 0x6e, 0x6f }; 133 134 #define ADM1026_REG_FAN(nr) (0x38 + (nr)) 135 #define ADM1026_REG_FAN_MIN(nr) (0x60 + (nr)) 136 #define ADM1026_REG_FAN_DIV_0_3 0x02 137 #define ADM1026_REG_FAN_DIV_4_7 0x03 138 139 #define ADM1026_REG_DAC 0x04 140 #define ADM1026_REG_PWM 0x05 141 142 #define ADM1026_REG_GPIO_CFG_0_3 0x08 143 #define ADM1026_REG_GPIO_CFG_4_7 0x09 144 #define ADM1026_REG_GPIO_CFG_8_11 0x0a 145 #define ADM1026_REG_GPIO_CFG_12_15 0x0b 146 /* CFG_16 in REG_CFG3 */ 147 #define ADM1026_REG_GPIO_STATUS_0_7 0x24 148 #define ADM1026_REG_GPIO_STATUS_8_15 0x25 149 /* STATUS_16 in REG_STATUS4 */ 150 #define ADM1026_REG_GPIO_MASK_0_7 0x1c 151 #define ADM1026_REG_GPIO_MASK_8_15 0x1d 152 /* MASK_16 in REG_MASK4 */ 153 154 #define ADM1026_REG_COMPANY 0x16 155 #define ADM1026_REG_VERSTEP 0x17 156 /* These are the recognized values for the above regs */ 157 #define ADM1026_COMPANY_ANALOG_DEV 0x41 158 #define ADM1026_VERSTEP_GENERIC 0x40 159 #define ADM1026_VERSTEP_ADM1026 0x44 160 161 #define ADM1026_REG_MASK1 0x18 162 #define ADM1026_REG_MASK2 0x19 163 #define ADM1026_REG_MASK3 0x1a 164 #define ADM1026_REG_MASK4 0x1b 165 166 #define ADM1026_REG_STATUS1 0x20 167 #define ADM1026_REG_STATUS2 0x21 168 #define ADM1026_REG_STATUS3 0x22 169 #define ADM1026_REG_STATUS4 0x23 170 171 #define ADM1026_FAN_ACTIVATION_TEMP_HYST -6 172 #define ADM1026_FAN_CONTROL_TEMP_RANGE 20 173 #define ADM1026_PWM_MAX 255 174 175 /* 176 * Conversions. Rounding and limit checking is only done on the TO_REG 177 * variants. Note that you should be a bit careful with which arguments 178 * these macros are called: arguments may be evaluated more than once. 179 */ 180 181 /* 182 * IN are scaled according to built-in resistors. These are the 183 * voltages corresponding to 3/4 of full scale (192 or 0xc0) 184 * NOTE: The -12V input needs an additional factor to account 185 * for the Vref pullup resistor. 186 * NEG12_OFFSET = SCALE * Vref / V-192 - Vref 187 * = 13875 * 2.50 / 1.875 - 2500 188 * = 16000 189 * 190 * The values in this table are based on Table II, page 15 of the 191 * datasheet. 192 */ 193 static int adm1026_scaling[] = { /* .001 Volts */ 194 2250, 2250, 2250, 2250, 2250, 2250, 195 1875, 1875, 1875, 1875, 3000, 3330, 196 3330, 4995, 2250, 12000, 13875 197 }; 198 #define NEG12_OFFSET 16000 199 #define SCALE(val, from, to) (((val)*(to) + ((from)/2))/(from)) 200 #define INS_TO_REG(n, val) \ 201 SCALE(clamp_val(val, 0, 255 * adm1026_scaling[n] / 192), \ 202 adm1026_scaling[n], 192) 203 #define INS_FROM_REG(n, val) (SCALE(val, 192, adm1026_scaling[n])) 204 205 /* 206 * FAN speed is measured using 22.5kHz clock and counts for 2 pulses 207 * and we assume a 2 pulse-per-rev fan tach signal 208 * 22500 kHz * 60 (sec/min) * 2 (pulse) / 2 (pulse/rev) == 1350000 209 */ 210 #define FAN_TO_REG(val, div) ((val) <= 0 ? 0xff : \ 211 clamp_val(1350000 / ((val) * (div)), \ 212 1, 254)) 213 #define FAN_FROM_REG(val, div) ((val) == 0 ? -1 : (val) == 0xff ? 0 : \ 214 1350000 / ((val) * (div))) 215 #define DIV_FROM_REG(val) (1 << (val)) 216 #define DIV_TO_REG(val) ((val) >= 8 ? 3 : (val) >= 4 ? 2 : (val) >= 2 ? 1 : 0) 217 218 /* Temperature is reported in 1 degC increments */ 219 #define TEMP_TO_REG(val) DIV_ROUND_CLOSEST(clamp_val(val, -128000, 127000), \ 220 1000) 221 #define TEMP_FROM_REG(val) ((val) * 1000) 222 #define OFFSET_TO_REG(val) DIV_ROUND_CLOSEST(clamp_val(val, -128000, 127000), \ 223 1000) 224 #define OFFSET_FROM_REG(val) ((val) * 1000) 225 226 #define PWM_TO_REG(val) (clamp_val(val, 0, 255)) 227 #define PWM_FROM_REG(val) (val) 228 229 #define PWM_MIN_TO_REG(val) ((val) & 0xf0) 230 #define PWM_MIN_FROM_REG(val) (((val) & 0xf0) + ((val) >> 4)) 231 232 /* 233 * Analog output is a voltage, and scaled to millivolts. The datasheet 234 * indicates that the DAC could be used to drive the fans, but in our 235 * example board (Arima HDAMA) it isn't connected to the fans at all. 236 */ 237 #define DAC_TO_REG(val) DIV_ROUND_CLOSEST(clamp_val(val, 0, 2500) * 255, \ 238 2500) 239 #define DAC_FROM_REG(val) (((val) * 2500) / 255) 240 241 /* 242 * Chip sampling rates 243 * 244 * Some sensors are not updated more frequently than once per second 245 * so it doesn't make sense to read them more often than that. 246 * We cache the results and return the saved data if the driver 247 * is called again before a second has elapsed. 248 * 249 * Also, there is significant configuration data for this chip 250 * So, we keep the config data up to date in the cache 251 * when it is written and only sample it once every 5 *minutes* 252 */ 253 #define ADM1026_DATA_INTERVAL (1 * HZ) 254 #define ADM1026_CONFIG_INTERVAL (5 * 60 * HZ) 255 256 /* 257 * We allow for multiple chips in a single system. 258 * 259 * For each registered ADM1026, we need to keep state information 260 * at client->data. The adm1026_data structure is dynamically 261 * allocated, when a new client structure is allocated. 262 */ 263 264 struct pwm_data { 265 u8 pwm; 266 u8 enable; 267 u8 auto_pwm_min; 268 }; 269 270 struct adm1026_data { 271 struct i2c_client *client; 272 const struct attribute_group *groups[3]; 273 274 struct mutex update_lock; 275 int valid; /* !=0 if following fields are valid */ 276 unsigned long last_reading; /* In jiffies */ 277 unsigned long last_config; /* In jiffies */ 278 279 u8 in[17]; /* Register value */ 280 u8 in_max[17]; /* Register value */ 281 u8 in_min[17]; /* Register value */ 282 s8 temp[3]; /* Register value */ 283 s8 temp_min[3]; /* Register value */ 284 s8 temp_max[3]; /* Register value */ 285 s8 temp_tmin[3]; /* Register value */ 286 s8 temp_crit[3]; /* Register value */ 287 s8 temp_offset[3]; /* Register value */ 288 u8 fan[8]; /* Register value */ 289 u8 fan_min[8]; /* Register value */ 290 u8 fan_div[8]; /* Decoded value */ 291 struct pwm_data pwm1; /* Pwm control values */ 292 u8 vrm; /* VRM version */ 293 u8 analog_out; /* Register value (DAC) */ 294 long alarms; /* Register encoding, combined */ 295 long alarm_mask; /* Register encoding, combined */ 296 long gpio; /* Register encoding, combined */ 297 long gpio_mask; /* Register encoding, combined */ 298 u8 gpio_config[17]; /* Decoded value */ 299 u8 config1; /* Register value */ 300 u8 config2; /* Register value */ 301 u8 config3; /* Register value */ 302 }; 303 304 static int adm1026_read_value(struct i2c_client *client, u8 reg) 305 { 306 int res; 307 308 if (reg < 0x80) { 309 /* "RAM" locations */ 310 res = i2c_smbus_read_byte_data(client, reg) & 0xff; 311 } else { 312 /* EEPROM, do nothing */ 313 res = 0; 314 } 315 return res; 316 } 317 318 static int adm1026_write_value(struct i2c_client *client, u8 reg, int value) 319 { 320 int res; 321 322 if (reg < 0x80) { 323 /* "RAM" locations */ 324 res = i2c_smbus_write_byte_data(client, reg, value); 325 } else { 326 /* EEPROM, do nothing */ 327 res = 0; 328 } 329 return res; 330 } 331 332 static struct adm1026_data *adm1026_update_device(struct device *dev) 333 { 334 struct adm1026_data *data = dev_get_drvdata(dev); 335 struct i2c_client *client = data->client; 336 int i; 337 long value, alarms, gpio; 338 339 mutex_lock(&data->update_lock); 340 if (!data->valid 341 || time_after(jiffies, 342 data->last_reading + ADM1026_DATA_INTERVAL)) { 343 /* Things that change quickly */ 344 dev_dbg(&client->dev, "Reading sensor values\n"); 345 for (i = 0; i <= 16; ++i) { 346 data->in[i] = 347 adm1026_read_value(client, ADM1026_REG_IN[i]); 348 } 349 350 for (i = 0; i <= 7; ++i) { 351 data->fan[i] = 352 adm1026_read_value(client, ADM1026_REG_FAN(i)); 353 } 354 355 for (i = 0; i <= 2; ++i) { 356 /* 357 * NOTE: temp[] is s8 and we assume 2's complement 358 * "conversion" in the assignment 359 */ 360 data->temp[i] = 361 adm1026_read_value(client, ADM1026_REG_TEMP[i]); 362 } 363 364 data->pwm1.pwm = adm1026_read_value(client, 365 ADM1026_REG_PWM); 366 data->analog_out = adm1026_read_value(client, 367 ADM1026_REG_DAC); 368 /* GPIO16 is MSbit of alarms, move it to gpio */ 369 alarms = adm1026_read_value(client, ADM1026_REG_STATUS4); 370 gpio = alarms & 0x80 ? 0x0100 : 0; /* GPIO16 */ 371 alarms &= 0x7f; 372 alarms <<= 8; 373 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS3); 374 alarms <<= 8; 375 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS2); 376 alarms <<= 8; 377 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS1); 378 data->alarms = alarms; 379 380 /* Read the GPIO values */ 381 gpio |= adm1026_read_value(client, 382 ADM1026_REG_GPIO_STATUS_8_15); 383 gpio <<= 8; 384 gpio |= adm1026_read_value(client, 385 ADM1026_REG_GPIO_STATUS_0_7); 386 data->gpio = gpio; 387 388 data->last_reading = jiffies; 389 } /* last_reading */ 390 391 if (!data->valid || 392 time_after(jiffies, data->last_config + ADM1026_CONFIG_INTERVAL)) { 393 /* Things that don't change often */ 394 dev_dbg(&client->dev, "Reading config values\n"); 395 for (i = 0; i <= 16; ++i) { 396 data->in_min[i] = adm1026_read_value(client, 397 ADM1026_REG_IN_MIN[i]); 398 data->in_max[i] = adm1026_read_value(client, 399 ADM1026_REG_IN_MAX[i]); 400 } 401 402 value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3) 403 | (adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7) 404 << 8); 405 for (i = 0; i <= 7; ++i) { 406 data->fan_min[i] = adm1026_read_value(client, 407 ADM1026_REG_FAN_MIN(i)); 408 data->fan_div[i] = DIV_FROM_REG(value & 0x03); 409 value >>= 2; 410 } 411 412 for (i = 0; i <= 2; ++i) { 413 /* 414 * NOTE: temp_xxx[] are s8 and we assume 2's 415 * complement "conversion" in the assignment 416 */ 417 data->temp_min[i] = adm1026_read_value(client, 418 ADM1026_REG_TEMP_MIN[i]); 419 data->temp_max[i] = adm1026_read_value(client, 420 ADM1026_REG_TEMP_MAX[i]); 421 data->temp_tmin[i] = adm1026_read_value(client, 422 ADM1026_REG_TEMP_TMIN[i]); 423 data->temp_crit[i] = adm1026_read_value(client, 424 ADM1026_REG_TEMP_THERM[i]); 425 data->temp_offset[i] = adm1026_read_value(client, 426 ADM1026_REG_TEMP_OFFSET[i]); 427 } 428 429 /* Read the STATUS/alarm masks */ 430 alarms = adm1026_read_value(client, ADM1026_REG_MASK4); 431 gpio = alarms & 0x80 ? 0x0100 : 0; /* GPIO16 */ 432 alarms = (alarms & 0x7f) << 8; 433 alarms |= adm1026_read_value(client, ADM1026_REG_MASK3); 434 alarms <<= 8; 435 alarms |= adm1026_read_value(client, ADM1026_REG_MASK2); 436 alarms <<= 8; 437 alarms |= adm1026_read_value(client, ADM1026_REG_MASK1); 438 data->alarm_mask = alarms; 439 440 /* Read the GPIO values */ 441 gpio |= adm1026_read_value(client, 442 ADM1026_REG_GPIO_MASK_8_15); 443 gpio <<= 8; 444 gpio |= adm1026_read_value(client, ADM1026_REG_GPIO_MASK_0_7); 445 data->gpio_mask = gpio; 446 447 /* Read various values from CONFIG1 */ 448 data->config1 = adm1026_read_value(client, 449 ADM1026_REG_CONFIG1); 450 if (data->config1 & CFG1_PWM_AFC) { 451 data->pwm1.enable = 2; 452 data->pwm1.auto_pwm_min = 453 PWM_MIN_FROM_REG(data->pwm1.pwm); 454 } 455 /* Read the GPIO config */ 456 data->config2 = adm1026_read_value(client, 457 ADM1026_REG_CONFIG2); 458 data->config3 = adm1026_read_value(client, 459 ADM1026_REG_CONFIG3); 460 data->gpio_config[16] = (data->config3 >> 6) & 0x03; 461 462 value = 0; 463 for (i = 0; i <= 15; ++i) { 464 if ((i & 0x03) == 0) { 465 value = adm1026_read_value(client, 466 ADM1026_REG_GPIO_CFG_0_3 + i/4); 467 } 468 data->gpio_config[i] = value & 0x03; 469 value >>= 2; 470 } 471 472 data->last_config = jiffies; 473 } /* last_config */ 474 475 data->valid = 1; 476 mutex_unlock(&data->update_lock); 477 return data; 478 } 479 480 static ssize_t show_in(struct device *dev, struct device_attribute *attr, 481 char *buf) 482 { 483 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 484 int nr = sensor_attr->index; 485 struct adm1026_data *data = adm1026_update_device(dev); 486 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in[nr])); 487 } 488 static ssize_t show_in_min(struct device *dev, struct device_attribute *attr, 489 char *buf) 490 { 491 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 492 int nr = sensor_attr->index; 493 struct adm1026_data *data = adm1026_update_device(dev); 494 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_min[nr])); 495 } 496 static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, 497 const char *buf, size_t count) 498 { 499 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 500 int nr = sensor_attr->index; 501 struct adm1026_data *data = dev_get_drvdata(dev); 502 struct i2c_client *client = data->client; 503 long val; 504 int err; 505 506 err = kstrtol(buf, 10, &val); 507 if (err) 508 return err; 509 510 mutex_lock(&data->update_lock); 511 data->in_min[nr] = INS_TO_REG(nr, val); 512 adm1026_write_value(client, ADM1026_REG_IN_MIN[nr], data->in_min[nr]); 513 mutex_unlock(&data->update_lock); 514 return count; 515 } 516 static ssize_t show_in_max(struct device *dev, struct device_attribute *attr, 517 char *buf) 518 { 519 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 520 int nr = sensor_attr->index; 521 struct adm1026_data *data = adm1026_update_device(dev); 522 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_max[nr])); 523 } 524 static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, 525 const char *buf, size_t count) 526 { 527 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 528 int nr = sensor_attr->index; 529 struct adm1026_data *data = dev_get_drvdata(dev); 530 struct i2c_client *client = data->client; 531 long val; 532 int err; 533 534 err = kstrtol(buf, 10, &val); 535 if (err) 536 return err; 537 538 mutex_lock(&data->update_lock); 539 data->in_max[nr] = INS_TO_REG(nr, val); 540 adm1026_write_value(client, ADM1026_REG_IN_MAX[nr], data->in_max[nr]); 541 mutex_unlock(&data->update_lock); 542 return count; 543 } 544 545 #define in_reg(offset) \ 546 static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in, \ 547 NULL, offset); \ 548 static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ 549 show_in_min, set_in_min, offset); \ 550 static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ 551 show_in_max, set_in_max, offset); 552 553 554 in_reg(0); 555 in_reg(1); 556 in_reg(2); 557 in_reg(3); 558 in_reg(4); 559 in_reg(5); 560 in_reg(6); 561 in_reg(7); 562 in_reg(8); 563 in_reg(9); 564 in_reg(10); 565 in_reg(11); 566 in_reg(12); 567 in_reg(13); 568 in_reg(14); 569 in_reg(15); 570 571 static ssize_t show_in16(struct device *dev, struct device_attribute *attr, 572 char *buf) 573 { 574 struct adm1026_data *data = adm1026_update_device(dev); 575 return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in[16]) - 576 NEG12_OFFSET); 577 } 578 static ssize_t show_in16_min(struct device *dev, struct device_attribute *attr, 579 char *buf) 580 { 581 struct adm1026_data *data = adm1026_update_device(dev); 582 return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in_min[16]) 583 - NEG12_OFFSET); 584 } 585 static ssize_t set_in16_min(struct device *dev, struct device_attribute *attr, 586 const char *buf, size_t count) 587 { 588 struct adm1026_data *data = dev_get_drvdata(dev); 589 struct i2c_client *client = data->client; 590 long val; 591 int err; 592 593 err = kstrtol(buf, 10, &val); 594 if (err) 595 return err; 596 597 mutex_lock(&data->update_lock); 598 data->in_min[16] = INS_TO_REG(16, 599 clamp_val(val, INT_MIN, 600 INT_MAX - NEG12_OFFSET) + 601 NEG12_OFFSET); 602 adm1026_write_value(client, ADM1026_REG_IN_MIN[16], data->in_min[16]); 603 mutex_unlock(&data->update_lock); 604 return count; 605 } 606 static ssize_t show_in16_max(struct device *dev, struct device_attribute *attr, 607 char *buf) 608 { 609 struct adm1026_data *data = adm1026_update_device(dev); 610 return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in_max[16]) 611 - NEG12_OFFSET); 612 } 613 static ssize_t set_in16_max(struct device *dev, struct device_attribute *attr, 614 const char *buf, size_t count) 615 { 616 struct adm1026_data *data = dev_get_drvdata(dev); 617 struct i2c_client *client = data->client; 618 long val; 619 int err; 620 621 err = kstrtol(buf, 10, &val); 622 if (err) 623 return err; 624 625 mutex_lock(&data->update_lock); 626 data->in_max[16] = INS_TO_REG(16, 627 clamp_val(val, INT_MIN, 628 INT_MAX - NEG12_OFFSET) + 629 NEG12_OFFSET); 630 adm1026_write_value(client, ADM1026_REG_IN_MAX[16], data->in_max[16]); 631 mutex_unlock(&data->update_lock); 632 return count; 633 } 634 635 static SENSOR_DEVICE_ATTR(in16_input, S_IRUGO, show_in16, NULL, 16); 636 static SENSOR_DEVICE_ATTR(in16_min, S_IRUGO | S_IWUSR, show_in16_min, 637 set_in16_min, 16); 638 static SENSOR_DEVICE_ATTR(in16_max, S_IRUGO | S_IWUSR, show_in16_max, 639 set_in16_max, 16); 640 641 642 /* Now add fan read/write functions */ 643 644 static ssize_t show_fan(struct device *dev, struct device_attribute *attr, 645 char *buf) 646 { 647 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 648 int nr = sensor_attr->index; 649 struct adm1026_data *data = adm1026_update_device(dev); 650 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr], 651 data->fan_div[nr])); 652 } 653 static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr, 654 char *buf) 655 { 656 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 657 int nr = sensor_attr->index; 658 struct adm1026_data *data = adm1026_update_device(dev); 659 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr], 660 data->fan_div[nr])); 661 } 662 static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, 663 const char *buf, size_t count) 664 { 665 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 666 int nr = sensor_attr->index; 667 struct adm1026_data *data = dev_get_drvdata(dev); 668 struct i2c_client *client = data->client; 669 long val; 670 int err; 671 672 err = kstrtol(buf, 10, &val); 673 if (err) 674 return err; 675 676 mutex_lock(&data->update_lock); 677 data->fan_min[nr] = FAN_TO_REG(val, data->fan_div[nr]); 678 adm1026_write_value(client, ADM1026_REG_FAN_MIN(nr), 679 data->fan_min[nr]); 680 mutex_unlock(&data->update_lock); 681 return count; 682 } 683 684 #define fan_offset(offset) \ 685 static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan, NULL, \ 686 offset - 1); \ 687 static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ 688 show_fan_min, set_fan_min, offset - 1); 689 690 fan_offset(1); 691 fan_offset(2); 692 fan_offset(3); 693 fan_offset(4); 694 fan_offset(5); 695 fan_offset(6); 696 fan_offset(7); 697 fan_offset(8); 698 699 /* Adjust fan_min to account for new fan divisor */ 700 static void fixup_fan_min(struct device *dev, int fan, int old_div) 701 { 702 struct adm1026_data *data = dev_get_drvdata(dev); 703 struct i2c_client *client = data->client; 704 int new_min; 705 int new_div = data->fan_div[fan]; 706 707 /* 0 and 0xff are special. Don't adjust them */ 708 if (data->fan_min[fan] == 0 || data->fan_min[fan] == 0xff) 709 return; 710 711 new_min = data->fan_min[fan] * old_div / new_div; 712 new_min = clamp_val(new_min, 1, 254); 713 data->fan_min[fan] = new_min; 714 adm1026_write_value(client, ADM1026_REG_FAN_MIN(fan), new_min); 715 } 716 717 /* Now add fan_div read/write functions */ 718 static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr, 719 char *buf) 720 { 721 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 722 int nr = sensor_attr->index; 723 struct adm1026_data *data = adm1026_update_device(dev); 724 return sprintf(buf, "%d\n", data->fan_div[nr]); 725 } 726 static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, 727 const char *buf, size_t count) 728 { 729 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 730 int nr = sensor_attr->index; 731 struct adm1026_data *data = dev_get_drvdata(dev); 732 struct i2c_client *client = data->client; 733 long val; 734 int orig_div, new_div; 735 int err; 736 737 err = kstrtol(buf, 10, &val); 738 if (err) 739 return err; 740 741 new_div = DIV_TO_REG(val); 742 743 mutex_lock(&data->update_lock); 744 orig_div = data->fan_div[nr]; 745 data->fan_div[nr] = DIV_FROM_REG(new_div); 746 747 if (nr < 4) { /* 0 <= nr < 4 */ 748 adm1026_write_value(client, ADM1026_REG_FAN_DIV_0_3, 749 (DIV_TO_REG(data->fan_div[0]) << 0) | 750 (DIV_TO_REG(data->fan_div[1]) << 2) | 751 (DIV_TO_REG(data->fan_div[2]) << 4) | 752 (DIV_TO_REG(data->fan_div[3]) << 6)); 753 } else { /* 3 < nr < 8 */ 754 adm1026_write_value(client, ADM1026_REG_FAN_DIV_4_7, 755 (DIV_TO_REG(data->fan_div[4]) << 0) | 756 (DIV_TO_REG(data->fan_div[5]) << 2) | 757 (DIV_TO_REG(data->fan_div[6]) << 4) | 758 (DIV_TO_REG(data->fan_div[7]) << 6)); 759 } 760 761 if (data->fan_div[nr] != orig_div) 762 fixup_fan_min(dev, nr, orig_div); 763 764 mutex_unlock(&data->update_lock); 765 return count; 766 } 767 768 #define fan_offset_div(offset) \ 769 static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \ 770 show_fan_div, set_fan_div, offset - 1); 771 772 fan_offset_div(1); 773 fan_offset_div(2); 774 fan_offset_div(3); 775 fan_offset_div(4); 776 fan_offset_div(5); 777 fan_offset_div(6); 778 fan_offset_div(7); 779 fan_offset_div(8); 780 781 /* Temps */ 782 static ssize_t show_temp(struct device *dev, struct device_attribute *attr, 783 char *buf) 784 { 785 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 786 int nr = sensor_attr->index; 787 struct adm1026_data *data = adm1026_update_device(dev); 788 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr])); 789 } 790 static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr, 791 char *buf) 792 { 793 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 794 int nr = sensor_attr->index; 795 struct adm1026_data *data = adm1026_update_device(dev); 796 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr])); 797 } 798 static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, 799 const char *buf, size_t count) 800 { 801 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 802 int nr = sensor_attr->index; 803 struct adm1026_data *data = dev_get_drvdata(dev); 804 struct i2c_client *client = data->client; 805 long val; 806 int err; 807 808 err = kstrtol(buf, 10, &val); 809 if (err) 810 return err; 811 812 mutex_lock(&data->update_lock); 813 data->temp_min[nr] = TEMP_TO_REG(val); 814 adm1026_write_value(client, ADM1026_REG_TEMP_MIN[nr], 815 data->temp_min[nr]); 816 mutex_unlock(&data->update_lock); 817 return count; 818 } 819 static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr, 820 char *buf) 821 { 822 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 823 int nr = sensor_attr->index; 824 struct adm1026_data *data = adm1026_update_device(dev); 825 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr])); 826 } 827 static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, 828 const char *buf, size_t count) 829 { 830 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 831 int nr = sensor_attr->index; 832 struct adm1026_data *data = dev_get_drvdata(dev); 833 struct i2c_client *client = data->client; 834 long val; 835 int err; 836 837 err = kstrtol(buf, 10, &val); 838 if (err) 839 return err; 840 841 mutex_lock(&data->update_lock); 842 data->temp_max[nr] = TEMP_TO_REG(val); 843 adm1026_write_value(client, ADM1026_REG_TEMP_MAX[nr], 844 data->temp_max[nr]); 845 mutex_unlock(&data->update_lock); 846 return count; 847 } 848 849 #define temp_reg(offset) \ 850 static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp, \ 851 NULL, offset - 1); \ 852 static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \ 853 show_temp_min, set_temp_min, offset - 1); \ 854 static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \ 855 show_temp_max, set_temp_max, offset - 1); 856 857 858 temp_reg(1); 859 temp_reg(2); 860 temp_reg(3); 861 862 static ssize_t show_temp_offset(struct device *dev, 863 struct device_attribute *attr, char *buf) 864 { 865 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 866 int nr = sensor_attr->index; 867 struct adm1026_data *data = adm1026_update_device(dev); 868 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_offset[nr])); 869 } 870 static ssize_t set_temp_offset(struct device *dev, 871 struct device_attribute *attr, const char *buf, 872 size_t count) 873 { 874 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 875 int nr = sensor_attr->index; 876 struct adm1026_data *data = dev_get_drvdata(dev); 877 struct i2c_client *client = data->client; 878 long val; 879 int err; 880 881 err = kstrtol(buf, 10, &val); 882 if (err) 883 return err; 884 885 mutex_lock(&data->update_lock); 886 data->temp_offset[nr] = TEMP_TO_REG(val); 887 adm1026_write_value(client, ADM1026_REG_TEMP_OFFSET[nr], 888 data->temp_offset[nr]); 889 mutex_unlock(&data->update_lock); 890 return count; 891 } 892 893 #define temp_offset_reg(offset) \ 894 static SENSOR_DEVICE_ATTR(temp##offset##_offset, S_IRUGO | S_IWUSR, \ 895 show_temp_offset, set_temp_offset, offset - 1); 896 897 temp_offset_reg(1); 898 temp_offset_reg(2); 899 temp_offset_reg(3); 900 901 static ssize_t show_temp_auto_point1_temp_hyst(struct device *dev, 902 struct device_attribute *attr, char *buf) 903 { 904 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 905 int nr = sensor_attr->index; 906 struct adm1026_data *data = adm1026_update_device(dev); 907 return sprintf(buf, "%d\n", TEMP_FROM_REG( 908 ADM1026_FAN_ACTIVATION_TEMP_HYST + data->temp_tmin[nr])); 909 } 910 static ssize_t show_temp_auto_point2_temp(struct device *dev, 911 struct device_attribute *attr, 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", TEMP_FROM_REG(data->temp_tmin[nr] + 917 ADM1026_FAN_CONTROL_TEMP_RANGE)); 918 } 919 static ssize_t show_temp_auto_point1_temp(struct device *dev, 920 struct device_attribute *attr, char *buf) 921 { 922 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 923 int nr = sensor_attr->index; 924 struct adm1026_data *data = adm1026_update_device(dev); 925 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_tmin[nr])); 926 } 927 static ssize_t set_temp_auto_point1_temp(struct device *dev, 928 struct device_attribute *attr, const char *buf, size_t count) 929 { 930 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 931 int nr = sensor_attr->index; 932 struct adm1026_data *data = dev_get_drvdata(dev); 933 struct i2c_client *client = data->client; 934 long val; 935 int err; 936 937 err = kstrtol(buf, 10, &val); 938 if (err) 939 return err; 940 941 mutex_lock(&data->update_lock); 942 data->temp_tmin[nr] = TEMP_TO_REG(val); 943 adm1026_write_value(client, ADM1026_REG_TEMP_TMIN[nr], 944 data->temp_tmin[nr]); 945 mutex_unlock(&data->update_lock); 946 return count; 947 } 948 949 #define temp_auto_point(offset) \ 950 static SENSOR_DEVICE_ATTR(temp##offset##_auto_point1_temp, \ 951 S_IRUGO | S_IWUSR, show_temp_auto_point1_temp, \ 952 set_temp_auto_point1_temp, offset - 1); \ 953 static SENSOR_DEVICE_ATTR(temp##offset##_auto_point1_temp_hyst, S_IRUGO,\ 954 show_temp_auto_point1_temp_hyst, NULL, offset - 1); \ 955 static SENSOR_DEVICE_ATTR(temp##offset##_auto_point2_temp, S_IRUGO, \ 956 show_temp_auto_point2_temp, NULL, offset - 1); 957 958 temp_auto_point(1); 959 temp_auto_point(2); 960 temp_auto_point(3); 961 962 static ssize_t show_temp_crit_enable(struct device *dev, 963 struct device_attribute *attr, char *buf) 964 { 965 struct adm1026_data *data = adm1026_update_device(dev); 966 return sprintf(buf, "%d\n", (data->config1 & CFG1_THERM_HOT) >> 4); 967 } 968 static ssize_t set_temp_crit_enable(struct device *dev, 969 struct device_attribute *attr, const char *buf, size_t count) 970 { 971 struct adm1026_data *data = dev_get_drvdata(dev); 972 struct i2c_client *client = data->client; 973 unsigned long val; 974 int err; 975 976 err = kstrtoul(buf, 10, &val); 977 if (err) 978 return err; 979 980 if (val > 1) 981 return -EINVAL; 982 983 mutex_lock(&data->update_lock); 984 data->config1 = (data->config1 & ~CFG1_THERM_HOT) | (val << 4); 985 adm1026_write_value(client, ADM1026_REG_CONFIG1, data->config1); 986 mutex_unlock(&data->update_lock); 987 988 return count; 989 } 990 991 #define temp_crit_enable(offset) \ 992 static DEVICE_ATTR(temp##offset##_crit_enable, S_IRUGO | S_IWUSR, \ 993 show_temp_crit_enable, set_temp_crit_enable); 994 995 temp_crit_enable(1); 996 temp_crit_enable(2); 997 temp_crit_enable(3); 998 999 static ssize_t show_temp_crit(struct device *dev, 1000 struct device_attribute *attr, char *buf) 1001 { 1002 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1003 int nr = sensor_attr->index; 1004 struct adm1026_data *data = adm1026_update_device(dev); 1005 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[nr])); 1006 } 1007 static ssize_t set_temp_crit(struct device *dev, struct device_attribute *attr, 1008 const char *buf, size_t count) 1009 { 1010 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1011 int nr = sensor_attr->index; 1012 struct adm1026_data *data = dev_get_drvdata(dev); 1013 struct i2c_client *client = data->client; 1014 long val; 1015 int err; 1016 1017 err = kstrtol(buf, 10, &val); 1018 if (err) 1019 return err; 1020 1021 mutex_lock(&data->update_lock); 1022 data->temp_crit[nr] = TEMP_TO_REG(val); 1023 adm1026_write_value(client, ADM1026_REG_TEMP_THERM[nr], 1024 data->temp_crit[nr]); 1025 mutex_unlock(&data->update_lock); 1026 return count; 1027 } 1028 1029 #define temp_crit_reg(offset) \ 1030 static SENSOR_DEVICE_ATTR(temp##offset##_crit, S_IRUGO | S_IWUSR, \ 1031 show_temp_crit, set_temp_crit, offset - 1); 1032 1033 temp_crit_reg(1); 1034 temp_crit_reg(2); 1035 temp_crit_reg(3); 1036 1037 static ssize_t analog_out_show(struct device *dev, 1038 struct device_attribute *attr, char *buf) 1039 { 1040 struct adm1026_data *data = adm1026_update_device(dev); 1041 return sprintf(buf, "%d\n", DAC_FROM_REG(data->analog_out)); 1042 } 1043 static ssize_t analog_out_store(struct device *dev, 1044 struct device_attribute *attr, 1045 const char *buf, size_t count) 1046 { 1047 struct adm1026_data *data = dev_get_drvdata(dev); 1048 struct i2c_client *client = data->client; 1049 long val; 1050 int err; 1051 1052 err = kstrtol(buf, 10, &val); 1053 if (err) 1054 return err; 1055 1056 mutex_lock(&data->update_lock); 1057 data->analog_out = DAC_TO_REG(val); 1058 adm1026_write_value(client, ADM1026_REG_DAC, data->analog_out); 1059 mutex_unlock(&data->update_lock); 1060 return count; 1061 } 1062 1063 static DEVICE_ATTR_RW(analog_out); 1064 1065 static ssize_t cpu0_vid_show(struct device *dev, 1066 struct device_attribute *attr, char *buf) 1067 { 1068 struct adm1026_data *data = adm1026_update_device(dev); 1069 int vid = (data->gpio >> 11) & 0x1f; 1070 1071 dev_dbg(dev, "Setting VID from GPIO11-15.\n"); 1072 return sprintf(buf, "%d\n", vid_from_reg(vid, data->vrm)); 1073 } 1074 1075 static DEVICE_ATTR_RO(cpu0_vid); 1076 1077 static ssize_t vrm_show(struct device *dev, struct device_attribute *attr, 1078 char *buf) 1079 { 1080 struct adm1026_data *data = dev_get_drvdata(dev); 1081 return sprintf(buf, "%d\n", data->vrm); 1082 } 1083 1084 static ssize_t vrm_store(struct device *dev, struct device_attribute *attr, 1085 const char *buf, size_t count) 1086 { 1087 struct adm1026_data *data = dev_get_drvdata(dev); 1088 unsigned long val; 1089 int err; 1090 1091 err = kstrtoul(buf, 10, &val); 1092 if (err) 1093 return err; 1094 1095 if (val > 255) 1096 return -EINVAL; 1097 1098 data->vrm = val; 1099 return count; 1100 } 1101 1102 static DEVICE_ATTR_RW(vrm); 1103 1104 static ssize_t alarms_show(struct device *dev, struct device_attribute *attr, 1105 char *buf) 1106 { 1107 struct adm1026_data *data = adm1026_update_device(dev); 1108 return sprintf(buf, "%ld\n", data->alarms); 1109 } 1110 1111 static DEVICE_ATTR_RO(alarms); 1112 1113 static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, 1114 char *buf) 1115 { 1116 struct adm1026_data *data = adm1026_update_device(dev); 1117 int bitnr = to_sensor_dev_attr(attr)->index; 1118 return sprintf(buf, "%ld\n", (data->alarms >> bitnr) & 1); 1119 } 1120 1121 static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 0); 1122 static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 1); 1123 static SENSOR_DEVICE_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, 1); 1124 static SENSOR_DEVICE_ATTR(in11_alarm, S_IRUGO, show_alarm, NULL, 2); 1125 static SENSOR_DEVICE_ATTR(in12_alarm, S_IRUGO, show_alarm, NULL, 3); 1126 static SENSOR_DEVICE_ATTR(in13_alarm, S_IRUGO, show_alarm, NULL, 4); 1127 static SENSOR_DEVICE_ATTR(in14_alarm, S_IRUGO, show_alarm, NULL, 5); 1128 static SENSOR_DEVICE_ATTR(in15_alarm, S_IRUGO, show_alarm, NULL, 6); 1129 static SENSOR_DEVICE_ATTR(in16_alarm, S_IRUGO, show_alarm, NULL, 7); 1130 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 8); 1131 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 9); 1132 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 10); 1133 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 11); 1134 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 12); 1135 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 13); 1136 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 14); 1137 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 15); 1138 static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 16); 1139 static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 17); 1140 static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 18); 1141 static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 19); 1142 static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 20); 1143 static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 21); 1144 static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL, 22); 1145 static SENSOR_DEVICE_ATTR(fan8_alarm, S_IRUGO, show_alarm, NULL, 23); 1146 static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 24); 1147 static SENSOR_DEVICE_ATTR(in10_alarm, S_IRUGO, show_alarm, NULL, 25); 1148 static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 26); 1149 1150 static ssize_t alarm_mask_show(struct device *dev, 1151 struct device_attribute *attr, char *buf) 1152 { 1153 struct adm1026_data *data = adm1026_update_device(dev); 1154 return sprintf(buf, "%ld\n", data->alarm_mask); 1155 } 1156 static ssize_t alarm_mask_store(struct device *dev, 1157 struct device_attribute *attr, 1158 const char *buf, size_t count) 1159 { 1160 struct adm1026_data *data = dev_get_drvdata(dev); 1161 struct i2c_client *client = data->client; 1162 unsigned long mask; 1163 long val; 1164 int err; 1165 1166 err = kstrtol(buf, 10, &val); 1167 if (err) 1168 return err; 1169 1170 mutex_lock(&data->update_lock); 1171 data->alarm_mask = val & 0x7fffffff; 1172 mask = data->alarm_mask 1173 | (data->gpio_mask & 0x10000 ? 0x80000000 : 0); 1174 adm1026_write_value(client, ADM1026_REG_MASK1, 1175 mask & 0xff); 1176 mask >>= 8; 1177 adm1026_write_value(client, ADM1026_REG_MASK2, 1178 mask & 0xff); 1179 mask >>= 8; 1180 adm1026_write_value(client, ADM1026_REG_MASK3, 1181 mask & 0xff); 1182 mask >>= 8; 1183 adm1026_write_value(client, ADM1026_REG_MASK4, 1184 mask & 0xff); 1185 mutex_unlock(&data->update_lock); 1186 return count; 1187 } 1188 1189 static DEVICE_ATTR_RW(alarm_mask); 1190 1191 1192 static ssize_t gpio_show(struct device *dev, struct device_attribute *attr, 1193 char *buf) 1194 { 1195 struct adm1026_data *data = adm1026_update_device(dev); 1196 return sprintf(buf, "%ld\n", data->gpio); 1197 } 1198 static ssize_t gpio_store(struct device *dev, struct device_attribute *attr, 1199 const char *buf, size_t count) 1200 { 1201 struct adm1026_data *data = dev_get_drvdata(dev); 1202 struct i2c_client *client = data->client; 1203 long gpio; 1204 long val; 1205 int err; 1206 1207 err = kstrtol(buf, 10, &val); 1208 if (err) 1209 return err; 1210 1211 mutex_lock(&data->update_lock); 1212 data->gpio = val & 0x1ffff; 1213 gpio = data->gpio; 1214 adm1026_write_value(client, ADM1026_REG_GPIO_STATUS_0_7, gpio & 0xff); 1215 gpio >>= 8; 1216 adm1026_write_value(client, ADM1026_REG_GPIO_STATUS_8_15, gpio & 0xff); 1217 gpio = ((gpio >> 1) & 0x80) | (data->alarms >> 24 & 0x7f); 1218 adm1026_write_value(client, ADM1026_REG_STATUS4, gpio & 0xff); 1219 mutex_unlock(&data->update_lock); 1220 return count; 1221 } 1222 1223 static DEVICE_ATTR_RW(gpio); 1224 1225 static ssize_t gpio_mask_show(struct device *dev, 1226 struct device_attribute *attr, 1227 char *buf) 1228 { 1229 struct adm1026_data *data = adm1026_update_device(dev); 1230 return sprintf(buf, "%ld\n", data->gpio_mask); 1231 } 1232 static ssize_t gpio_mask_store(struct device *dev, 1233 struct device_attribute *attr, const char *buf, 1234 size_t count) 1235 { 1236 struct adm1026_data *data = dev_get_drvdata(dev); 1237 struct i2c_client *client = data->client; 1238 long mask; 1239 long val; 1240 int err; 1241 1242 err = kstrtol(buf, 10, &val); 1243 if (err) 1244 return err; 1245 1246 mutex_lock(&data->update_lock); 1247 data->gpio_mask = val & 0x1ffff; 1248 mask = data->gpio_mask; 1249 adm1026_write_value(client, ADM1026_REG_GPIO_MASK_0_7, mask & 0xff); 1250 mask >>= 8; 1251 adm1026_write_value(client, ADM1026_REG_GPIO_MASK_8_15, mask & 0xff); 1252 mask = ((mask >> 1) & 0x80) | (data->alarm_mask >> 24 & 0x7f); 1253 adm1026_write_value(client, ADM1026_REG_MASK1, mask & 0xff); 1254 mutex_unlock(&data->update_lock); 1255 return count; 1256 } 1257 1258 static DEVICE_ATTR_RW(gpio_mask); 1259 1260 static ssize_t pwm1_show(struct device *dev, struct device_attribute *attr, 1261 char *buf) 1262 { 1263 struct adm1026_data *data = adm1026_update_device(dev); 1264 return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm1.pwm)); 1265 } 1266 1267 static ssize_t pwm1_store(struct device *dev, struct device_attribute *attr, 1268 const char *buf, size_t count) 1269 { 1270 struct adm1026_data *data = dev_get_drvdata(dev); 1271 struct i2c_client *client = data->client; 1272 1273 if (data->pwm1.enable == 1) { 1274 long val; 1275 int err; 1276 1277 err = kstrtol(buf, 10, &val); 1278 if (err) 1279 return err; 1280 1281 mutex_lock(&data->update_lock); 1282 data->pwm1.pwm = PWM_TO_REG(val); 1283 adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm); 1284 mutex_unlock(&data->update_lock); 1285 } 1286 return count; 1287 } 1288 1289 static ssize_t temp1_auto_point1_pwm_show(struct device *dev, 1290 struct device_attribute *attr, 1291 char *buf) 1292 { 1293 struct adm1026_data *data = adm1026_update_device(dev); 1294 return sprintf(buf, "%d\n", data->pwm1.auto_pwm_min); 1295 } 1296 1297 static ssize_t temp1_auto_point1_pwm_store(struct device *dev, 1298 struct device_attribute *attr, 1299 const char *buf, size_t count) 1300 { 1301 struct adm1026_data *data = dev_get_drvdata(dev); 1302 struct i2c_client *client = data->client; 1303 unsigned long val; 1304 int err; 1305 1306 err = kstrtoul(buf, 10, &val); 1307 if (err) 1308 return err; 1309 1310 mutex_lock(&data->update_lock); 1311 data->pwm1.auto_pwm_min = clamp_val(val, 0, 255); 1312 if (data->pwm1.enable == 2) { /* apply immediately */ 1313 data->pwm1.pwm = PWM_TO_REG((data->pwm1.pwm & 0x0f) | 1314 PWM_MIN_TO_REG(data->pwm1.auto_pwm_min)); 1315 adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm); 1316 } 1317 mutex_unlock(&data->update_lock); 1318 return count; 1319 } 1320 1321 static ssize_t temp1_auto_point2_pwm_show(struct device *dev, 1322 struct device_attribute *attr, 1323 char *buf) 1324 { 1325 return sprintf(buf, "%d\n", ADM1026_PWM_MAX); 1326 } 1327 1328 static ssize_t pwm1_enable_show(struct device *dev, 1329 struct device_attribute *attr, char *buf) 1330 { 1331 struct adm1026_data *data = adm1026_update_device(dev); 1332 return sprintf(buf, "%d\n", data->pwm1.enable); 1333 } 1334 1335 static ssize_t pwm1_enable_store(struct device *dev, 1336 struct device_attribute *attr, 1337 const char *buf, size_t count) 1338 { 1339 struct adm1026_data *data = dev_get_drvdata(dev); 1340 struct i2c_client *client = data->client; 1341 int old_enable; 1342 unsigned long val; 1343 int err; 1344 1345 err = kstrtoul(buf, 10, &val); 1346 if (err) 1347 return err; 1348 1349 if (val >= 3) 1350 return -EINVAL; 1351 1352 mutex_lock(&data->update_lock); 1353 old_enable = data->pwm1.enable; 1354 data->pwm1.enable = val; 1355 data->config1 = (data->config1 & ~CFG1_PWM_AFC) 1356 | ((val == 2) ? CFG1_PWM_AFC : 0); 1357 adm1026_write_value(client, ADM1026_REG_CONFIG1, data->config1); 1358 if (val == 2) { /* apply pwm1_auto_pwm_min to pwm1 */ 1359 data->pwm1.pwm = PWM_TO_REG((data->pwm1.pwm & 0x0f) | 1360 PWM_MIN_TO_REG(data->pwm1.auto_pwm_min)); 1361 adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm); 1362 } else if (!((old_enable == 1) && (val == 1))) { 1363 /* set pwm to safe value */ 1364 data->pwm1.pwm = 255; 1365 adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm); 1366 } 1367 mutex_unlock(&data->update_lock); 1368 1369 return count; 1370 } 1371 1372 /* enable PWM fan control */ 1373 static DEVICE_ATTR_RW(pwm1); 1374 static DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, pwm1_show, pwm1_store); 1375 static DEVICE_ATTR(pwm3, S_IRUGO | S_IWUSR, pwm1_show, pwm1_store); 1376 static DEVICE_ATTR_RW(pwm1_enable); 1377 static DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR, pwm1_enable_show, 1378 pwm1_enable_store); 1379 static DEVICE_ATTR(pwm3_enable, S_IRUGO | S_IWUSR, pwm1_enable_show, 1380 pwm1_enable_store); 1381 static DEVICE_ATTR_RW(temp1_auto_point1_pwm); 1382 static DEVICE_ATTR(temp2_auto_point1_pwm, S_IRUGO | S_IWUSR, 1383 temp1_auto_point1_pwm_show, temp1_auto_point1_pwm_store); 1384 static DEVICE_ATTR(temp3_auto_point1_pwm, S_IRUGO | S_IWUSR, 1385 temp1_auto_point1_pwm_show, temp1_auto_point1_pwm_store); 1386 1387 static DEVICE_ATTR_RO(temp1_auto_point2_pwm); 1388 static DEVICE_ATTR(temp2_auto_point2_pwm, S_IRUGO, temp1_auto_point2_pwm_show, 1389 NULL); 1390 static DEVICE_ATTR(temp3_auto_point2_pwm, S_IRUGO, temp1_auto_point2_pwm_show, 1391 NULL); 1392 1393 static struct attribute *adm1026_attributes[] = { 1394 &sensor_dev_attr_in0_input.dev_attr.attr, 1395 &sensor_dev_attr_in0_max.dev_attr.attr, 1396 &sensor_dev_attr_in0_min.dev_attr.attr, 1397 &sensor_dev_attr_in0_alarm.dev_attr.attr, 1398 &sensor_dev_attr_in1_input.dev_attr.attr, 1399 &sensor_dev_attr_in1_max.dev_attr.attr, 1400 &sensor_dev_attr_in1_min.dev_attr.attr, 1401 &sensor_dev_attr_in1_alarm.dev_attr.attr, 1402 &sensor_dev_attr_in2_input.dev_attr.attr, 1403 &sensor_dev_attr_in2_max.dev_attr.attr, 1404 &sensor_dev_attr_in2_min.dev_attr.attr, 1405 &sensor_dev_attr_in2_alarm.dev_attr.attr, 1406 &sensor_dev_attr_in3_input.dev_attr.attr, 1407 &sensor_dev_attr_in3_max.dev_attr.attr, 1408 &sensor_dev_attr_in3_min.dev_attr.attr, 1409 &sensor_dev_attr_in3_alarm.dev_attr.attr, 1410 &sensor_dev_attr_in4_input.dev_attr.attr, 1411 &sensor_dev_attr_in4_max.dev_attr.attr, 1412 &sensor_dev_attr_in4_min.dev_attr.attr, 1413 &sensor_dev_attr_in4_alarm.dev_attr.attr, 1414 &sensor_dev_attr_in5_input.dev_attr.attr, 1415 &sensor_dev_attr_in5_max.dev_attr.attr, 1416 &sensor_dev_attr_in5_min.dev_attr.attr, 1417 &sensor_dev_attr_in5_alarm.dev_attr.attr, 1418 &sensor_dev_attr_in6_input.dev_attr.attr, 1419 &sensor_dev_attr_in6_max.dev_attr.attr, 1420 &sensor_dev_attr_in6_min.dev_attr.attr, 1421 &sensor_dev_attr_in6_alarm.dev_attr.attr, 1422 &sensor_dev_attr_in7_input.dev_attr.attr, 1423 &sensor_dev_attr_in7_max.dev_attr.attr, 1424 &sensor_dev_attr_in7_min.dev_attr.attr, 1425 &sensor_dev_attr_in7_alarm.dev_attr.attr, 1426 &sensor_dev_attr_in10_input.dev_attr.attr, 1427 &sensor_dev_attr_in10_max.dev_attr.attr, 1428 &sensor_dev_attr_in10_min.dev_attr.attr, 1429 &sensor_dev_attr_in10_alarm.dev_attr.attr, 1430 &sensor_dev_attr_in11_input.dev_attr.attr, 1431 &sensor_dev_attr_in11_max.dev_attr.attr, 1432 &sensor_dev_attr_in11_min.dev_attr.attr, 1433 &sensor_dev_attr_in11_alarm.dev_attr.attr, 1434 &sensor_dev_attr_in12_input.dev_attr.attr, 1435 &sensor_dev_attr_in12_max.dev_attr.attr, 1436 &sensor_dev_attr_in12_min.dev_attr.attr, 1437 &sensor_dev_attr_in12_alarm.dev_attr.attr, 1438 &sensor_dev_attr_in13_input.dev_attr.attr, 1439 &sensor_dev_attr_in13_max.dev_attr.attr, 1440 &sensor_dev_attr_in13_min.dev_attr.attr, 1441 &sensor_dev_attr_in13_alarm.dev_attr.attr, 1442 &sensor_dev_attr_in14_input.dev_attr.attr, 1443 &sensor_dev_attr_in14_max.dev_attr.attr, 1444 &sensor_dev_attr_in14_min.dev_attr.attr, 1445 &sensor_dev_attr_in14_alarm.dev_attr.attr, 1446 &sensor_dev_attr_in15_input.dev_attr.attr, 1447 &sensor_dev_attr_in15_max.dev_attr.attr, 1448 &sensor_dev_attr_in15_min.dev_attr.attr, 1449 &sensor_dev_attr_in15_alarm.dev_attr.attr, 1450 &sensor_dev_attr_in16_input.dev_attr.attr, 1451 &sensor_dev_attr_in16_max.dev_attr.attr, 1452 &sensor_dev_attr_in16_min.dev_attr.attr, 1453 &sensor_dev_attr_in16_alarm.dev_attr.attr, 1454 &sensor_dev_attr_fan1_input.dev_attr.attr, 1455 &sensor_dev_attr_fan1_div.dev_attr.attr, 1456 &sensor_dev_attr_fan1_min.dev_attr.attr, 1457 &sensor_dev_attr_fan1_alarm.dev_attr.attr, 1458 &sensor_dev_attr_fan2_input.dev_attr.attr, 1459 &sensor_dev_attr_fan2_div.dev_attr.attr, 1460 &sensor_dev_attr_fan2_min.dev_attr.attr, 1461 &sensor_dev_attr_fan2_alarm.dev_attr.attr, 1462 &sensor_dev_attr_fan3_input.dev_attr.attr, 1463 &sensor_dev_attr_fan3_div.dev_attr.attr, 1464 &sensor_dev_attr_fan3_min.dev_attr.attr, 1465 &sensor_dev_attr_fan3_alarm.dev_attr.attr, 1466 &sensor_dev_attr_fan4_input.dev_attr.attr, 1467 &sensor_dev_attr_fan4_div.dev_attr.attr, 1468 &sensor_dev_attr_fan4_min.dev_attr.attr, 1469 &sensor_dev_attr_fan4_alarm.dev_attr.attr, 1470 &sensor_dev_attr_fan5_input.dev_attr.attr, 1471 &sensor_dev_attr_fan5_div.dev_attr.attr, 1472 &sensor_dev_attr_fan5_min.dev_attr.attr, 1473 &sensor_dev_attr_fan5_alarm.dev_attr.attr, 1474 &sensor_dev_attr_fan6_input.dev_attr.attr, 1475 &sensor_dev_attr_fan6_div.dev_attr.attr, 1476 &sensor_dev_attr_fan6_min.dev_attr.attr, 1477 &sensor_dev_attr_fan6_alarm.dev_attr.attr, 1478 &sensor_dev_attr_fan7_input.dev_attr.attr, 1479 &sensor_dev_attr_fan7_div.dev_attr.attr, 1480 &sensor_dev_attr_fan7_min.dev_attr.attr, 1481 &sensor_dev_attr_fan7_alarm.dev_attr.attr, 1482 &sensor_dev_attr_fan8_input.dev_attr.attr, 1483 &sensor_dev_attr_fan8_div.dev_attr.attr, 1484 &sensor_dev_attr_fan8_min.dev_attr.attr, 1485 &sensor_dev_attr_fan8_alarm.dev_attr.attr, 1486 &sensor_dev_attr_temp1_input.dev_attr.attr, 1487 &sensor_dev_attr_temp1_max.dev_attr.attr, 1488 &sensor_dev_attr_temp1_min.dev_attr.attr, 1489 &sensor_dev_attr_temp1_alarm.dev_attr.attr, 1490 &sensor_dev_attr_temp2_input.dev_attr.attr, 1491 &sensor_dev_attr_temp2_max.dev_attr.attr, 1492 &sensor_dev_attr_temp2_min.dev_attr.attr, 1493 &sensor_dev_attr_temp2_alarm.dev_attr.attr, 1494 &sensor_dev_attr_temp1_offset.dev_attr.attr, 1495 &sensor_dev_attr_temp2_offset.dev_attr.attr, 1496 &sensor_dev_attr_temp1_auto_point1_temp.dev_attr.attr, 1497 &sensor_dev_attr_temp2_auto_point1_temp.dev_attr.attr, 1498 &sensor_dev_attr_temp1_auto_point1_temp_hyst.dev_attr.attr, 1499 &sensor_dev_attr_temp2_auto_point1_temp_hyst.dev_attr.attr, 1500 &sensor_dev_attr_temp1_auto_point2_temp.dev_attr.attr, 1501 &sensor_dev_attr_temp2_auto_point2_temp.dev_attr.attr, 1502 &sensor_dev_attr_temp1_crit.dev_attr.attr, 1503 &sensor_dev_attr_temp2_crit.dev_attr.attr, 1504 &dev_attr_temp1_crit_enable.attr, 1505 &dev_attr_temp2_crit_enable.attr, 1506 &dev_attr_cpu0_vid.attr, 1507 &dev_attr_vrm.attr, 1508 &dev_attr_alarms.attr, 1509 &dev_attr_alarm_mask.attr, 1510 &dev_attr_gpio.attr, 1511 &dev_attr_gpio_mask.attr, 1512 &dev_attr_pwm1.attr, 1513 &dev_attr_pwm2.attr, 1514 &dev_attr_pwm3.attr, 1515 &dev_attr_pwm1_enable.attr, 1516 &dev_attr_pwm2_enable.attr, 1517 &dev_attr_pwm3_enable.attr, 1518 &dev_attr_temp1_auto_point1_pwm.attr, 1519 &dev_attr_temp2_auto_point1_pwm.attr, 1520 &dev_attr_temp1_auto_point2_pwm.attr, 1521 &dev_attr_temp2_auto_point2_pwm.attr, 1522 &dev_attr_analog_out.attr, 1523 NULL 1524 }; 1525 1526 static const struct attribute_group adm1026_group = { 1527 .attrs = adm1026_attributes, 1528 }; 1529 1530 static struct attribute *adm1026_attributes_temp3[] = { 1531 &sensor_dev_attr_temp3_input.dev_attr.attr, 1532 &sensor_dev_attr_temp3_max.dev_attr.attr, 1533 &sensor_dev_attr_temp3_min.dev_attr.attr, 1534 &sensor_dev_attr_temp3_alarm.dev_attr.attr, 1535 &sensor_dev_attr_temp3_offset.dev_attr.attr, 1536 &sensor_dev_attr_temp3_auto_point1_temp.dev_attr.attr, 1537 &sensor_dev_attr_temp3_auto_point1_temp_hyst.dev_attr.attr, 1538 &sensor_dev_attr_temp3_auto_point2_temp.dev_attr.attr, 1539 &sensor_dev_attr_temp3_crit.dev_attr.attr, 1540 &dev_attr_temp3_crit_enable.attr, 1541 &dev_attr_temp3_auto_point1_pwm.attr, 1542 &dev_attr_temp3_auto_point2_pwm.attr, 1543 NULL 1544 }; 1545 1546 static const struct attribute_group adm1026_group_temp3 = { 1547 .attrs = adm1026_attributes_temp3, 1548 }; 1549 1550 static struct attribute *adm1026_attributes_in8_9[] = { 1551 &sensor_dev_attr_in8_input.dev_attr.attr, 1552 &sensor_dev_attr_in8_max.dev_attr.attr, 1553 &sensor_dev_attr_in8_min.dev_attr.attr, 1554 &sensor_dev_attr_in8_alarm.dev_attr.attr, 1555 &sensor_dev_attr_in9_input.dev_attr.attr, 1556 &sensor_dev_attr_in9_max.dev_attr.attr, 1557 &sensor_dev_attr_in9_min.dev_attr.attr, 1558 &sensor_dev_attr_in9_alarm.dev_attr.attr, 1559 NULL 1560 }; 1561 1562 static const struct attribute_group adm1026_group_in8_9 = { 1563 .attrs = adm1026_attributes_in8_9, 1564 }; 1565 1566 /* Return 0 if detection is successful, -ENODEV otherwise */ 1567 static int adm1026_detect(struct i2c_client *client, 1568 struct i2c_board_info *info) 1569 { 1570 struct i2c_adapter *adapter = client->adapter; 1571 int address = client->addr; 1572 int company, verstep; 1573 1574 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { 1575 /* We need to be able to do byte I/O */ 1576 return -ENODEV; 1577 } 1578 1579 /* Now, we do the remaining detection. */ 1580 1581 company = adm1026_read_value(client, ADM1026_REG_COMPANY); 1582 verstep = adm1026_read_value(client, ADM1026_REG_VERSTEP); 1583 1584 dev_dbg(&adapter->dev, 1585 "Detecting device at %d,0x%02x with COMPANY: 0x%02x and VERSTEP: 0x%02x\n", 1586 i2c_adapter_id(client->adapter), client->addr, 1587 company, verstep); 1588 1589 /* Determine the chip type. */ 1590 dev_dbg(&adapter->dev, "Autodetecting device at %d,0x%02x...\n", 1591 i2c_adapter_id(adapter), address); 1592 if (company == ADM1026_COMPANY_ANALOG_DEV 1593 && verstep == ADM1026_VERSTEP_ADM1026) { 1594 /* Analog Devices ADM1026 */ 1595 } else if (company == ADM1026_COMPANY_ANALOG_DEV 1596 && (verstep & 0xf0) == ADM1026_VERSTEP_GENERIC) { 1597 dev_err(&adapter->dev, 1598 "Unrecognized stepping 0x%02x. Defaulting to ADM1026.\n", 1599 verstep); 1600 } else if ((verstep & 0xf0) == ADM1026_VERSTEP_GENERIC) { 1601 dev_err(&adapter->dev, 1602 "Found version/stepping 0x%02x. Assuming generic ADM1026.\n", 1603 verstep); 1604 } else { 1605 dev_dbg(&adapter->dev, "Autodetection failed\n"); 1606 /* Not an ADM1026... */ 1607 return -ENODEV; 1608 } 1609 1610 strlcpy(info->type, "adm1026", I2C_NAME_SIZE); 1611 1612 return 0; 1613 } 1614 1615 static void adm1026_print_gpio(struct i2c_client *client) 1616 { 1617 struct adm1026_data *data = i2c_get_clientdata(client); 1618 int i; 1619 1620 dev_dbg(&client->dev, "GPIO config is:\n"); 1621 for (i = 0; i <= 7; ++i) { 1622 if (data->config2 & (1 << i)) { 1623 dev_dbg(&client->dev, "\t%sGP%s%d\n", 1624 data->gpio_config[i] & 0x02 ? "" : "!", 1625 data->gpio_config[i] & 0x01 ? "OUT" : "IN", 1626 i); 1627 } else { 1628 dev_dbg(&client->dev, "\tFAN%d\n", i); 1629 } 1630 } 1631 for (i = 8; i <= 15; ++i) { 1632 dev_dbg(&client->dev, "\t%sGP%s%d\n", 1633 data->gpio_config[i] & 0x02 ? "" : "!", 1634 data->gpio_config[i] & 0x01 ? "OUT" : "IN", 1635 i); 1636 } 1637 if (data->config3 & CFG3_GPIO16_ENABLE) { 1638 dev_dbg(&client->dev, "\t%sGP%s16\n", 1639 data->gpio_config[16] & 0x02 ? "" : "!", 1640 data->gpio_config[16] & 0x01 ? "OUT" : "IN"); 1641 } else { 1642 /* GPIO16 is THERM */ 1643 dev_dbg(&client->dev, "\tTHERM\n"); 1644 } 1645 } 1646 1647 static void adm1026_fixup_gpio(struct i2c_client *client) 1648 { 1649 struct adm1026_data *data = i2c_get_clientdata(client); 1650 int i; 1651 int value; 1652 1653 /* Make the changes requested. */ 1654 /* 1655 * We may need to unlock/stop monitoring or soft-reset the 1656 * chip before we can make changes. This hasn't been 1657 * tested much. FIXME 1658 */ 1659 1660 /* Make outputs */ 1661 for (i = 0; i <= 16; ++i) { 1662 if (gpio_output[i] >= 0 && gpio_output[i] <= 16) 1663 data->gpio_config[gpio_output[i]] |= 0x01; 1664 /* if GPIO0-7 is output, it isn't a FAN tach */ 1665 if (gpio_output[i] >= 0 && gpio_output[i] <= 7) 1666 data->config2 |= 1 << gpio_output[i]; 1667 } 1668 1669 /* Input overrides output */ 1670 for (i = 0; i <= 16; ++i) { 1671 if (gpio_input[i] >= 0 && gpio_input[i] <= 16) 1672 data->gpio_config[gpio_input[i]] &= ~0x01; 1673 /* if GPIO0-7 is input, it isn't a FAN tach */ 1674 if (gpio_input[i] >= 0 && gpio_input[i] <= 7) 1675 data->config2 |= 1 << gpio_input[i]; 1676 } 1677 1678 /* Inverted */ 1679 for (i = 0; i <= 16; ++i) { 1680 if (gpio_inverted[i] >= 0 && gpio_inverted[i] <= 16) 1681 data->gpio_config[gpio_inverted[i]] &= ~0x02; 1682 } 1683 1684 /* Normal overrides inverted */ 1685 for (i = 0; i <= 16; ++i) { 1686 if (gpio_normal[i] >= 0 && gpio_normal[i] <= 16) 1687 data->gpio_config[gpio_normal[i]] |= 0x02; 1688 } 1689 1690 /* Fan overrides input and output */ 1691 for (i = 0; i <= 7; ++i) { 1692 if (gpio_fan[i] >= 0 && gpio_fan[i] <= 7) 1693 data->config2 &= ~(1 << gpio_fan[i]); 1694 } 1695 1696 /* Write new configs to registers */ 1697 adm1026_write_value(client, ADM1026_REG_CONFIG2, data->config2); 1698 data->config3 = (data->config3 & 0x3f) 1699 | ((data->gpio_config[16] & 0x03) << 6); 1700 adm1026_write_value(client, ADM1026_REG_CONFIG3, data->config3); 1701 for (i = 15, value = 0; i >= 0; --i) { 1702 value <<= 2; 1703 value |= data->gpio_config[i] & 0x03; 1704 if ((i & 0x03) == 0) { 1705 adm1026_write_value(client, 1706 ADM1026_REG_GPIO_CFG_0_3 + i/4, 1707 value); 1708 value = 0; 1709 } 1710 } 1711 1712 /* Print the new config */ 1713 adm1026_print_gpio(client); 1714 } 1715 1716 static void adm1026_init_client(struct i2c_client *client) 1717 { 1718 int value, i; 1719 struct adm1026_data *data = i2c_get_clientdata(client); 1720 1721 dev_dbg(&client->dev, "Initializing device\n"); 1722 /* Read chip config */ 1723 data->config1 = adm1026_read_value(client, ADM1026_REG_CONFIG1); 1724 data->config2 = adm1026_read_value(client, ADM1026_REG_CONFIG2); 1725 data->config3 = adm1026_read_value(client, ADM1026_REG_CONFIG3); 1726 1727 /* Inform user of chip config */ 1728 dev_dbg(&client->dev, "ADM1026_REG_CONFIG1 is: 0x%02x\n", 1729 data->config1); 1730 if ((data->config1 & CFG1_MONITOR) == 0) { 1731 dev_dbg(&client->dev, 1732 "Monitoring not currently enabled.\n"); 1733 } 1734 if (data->config1 & CFG1_INT_ENABLE) { 1735 dev_dbg(&client->dev, 1736 "SMBALERT interrupts are enabled.\n"); 1737 } 1738 if (data->config1 & CFG1_AIN8_9) { 1739 dev_dbg(&client->dev, 1740 "in8 and in9 enabled. temp3 disabled.\n"); 1741 } else { 1742 dev_dbg(&client->dev, 1743 "temp3 enabled. in8 and in9 disabled.\n"); 1744 } 1745 if (data->config1 & CFG1_THERM_HOT) { 1746 dev_dbg(&client->dev, 1747 "Automatic THERM, PWM, and temp limits enabled.\n"); 1748 } 1749 1750 if (data->config3 & CFG3_GPIO16_ENABLE) { 1751 dev_dbg(&client->dev, 1752 "GPIO16 enabled. THERM pin disabled.\n"); 1753 } else { 1754 dev_dbg(&client->dev, 1755 "THERM pin enabled. GPIO16 disabled.\n"); 1756 } 1757 if (data->config3 & CFG3_VREF_250) 1758 dev_dbg(&client->dev, "Vref is 2.50 Volts.\n"); 1759 else 1760 dev_dbg(&client->dev, "Vref is 1.82 Volts.\n"); 1761 /* Read and pick apart the existing GPIO configuration */ 1762 value = 0; 1763 for (i = 0; i <= 15; ++i) { 1764 if ((i & 0x03) == 0) { 1765 value = adm1026_read_value(client, 1766 ADM1026_REG_GPIO_CFG_0_3 + i / 4); 1767 } 1768 data->gpio_config[i] = value & 0x03; 1769 value >>= 2; 1770 } 1771 data->gpio_config[16] = (data->config3 >> 6) & 0x03; 1772 1773 /* ... and then print it */ 1774 adm1026_print_gpio(client); 1775 1776 /* 1777 * If the user asks us to reprogram the GPIO config, then 1778 * do it now. 1779 */ 1780 if (gpio_input[0] != -1 || gpio_output[0] != -1 1781 || gpio_inverted[0] != -1 || gpio_normal[0] != -1 1782 || gpio_fan[0] != -1) { 1783 adm1026_fixup_gpio(client); 1784 } 1785 1786 /* 1787 * WE INTENTIONALLY make no changes to the limits, 1788 * offsets, pwms, fans and zones. If they were 1789 * configured, we don't want to mess with them. 1790 * If they weren't, the default is 100% PWM, no 1791 * control and will suffice until 'sensors -s' 1792 * can be run by the user. We DO set the default 1793 * value for pwm1.auto_pwm_min to its maximum 1794 * so that enabling automatic pwm fan control 1795 * without first setting a value for pwm1.auto_pwm_min 1796 * will not result in potentially dangerous fan speed decrease. 1797 */ 1798 data->pwm1.auto_pwm_min = 255; 1799 /* Start monitoring */ 1800 value = adm1026_read_value(client, ADM1026_REG_CONFIG1); 1801 /* Set MONITOR, clear interrupt acknowledge and s/w reset */ 1802 value = (value | CFG1_MONITOR) & (~CFG1_INT_CLEAR & ~CFG1_RESET); 1803 dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value); 1804 data->config1 = value; 1805 adm1026_write_value(client, ADM1026_REG_CONFIG1, value); 1806 1807 /* initialize fan_div[] to hardware defaults */ 1808 value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3) | 1809 (adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7) << 8); 1810 for (i = 0; i <= 7; ++i) { 1811 data->fan_div[i] = DIV_FROM_REG(value & 0x03); 1812 value >>= 2; 1813 } 1814 } 1815 1816 static int adm1026_probe(struct i2c_client *client, 1817 const struct i2c_device_id *id) 1818 { 1819 struct device *dev = &client->dev; 1820 struct device *hwmon_dev; 1821 struct adm1026_data *data; 1822 1823 data = devm_kzalloc(dev, sizeof(struct adm1026_data), GFP_KERNEL); 1824 if (!data) 1825 return -ENOMEM; 1826 1827 i2c_set_clientdata(client, data); 1828 data->client = client; 1829 mutex_init(&data->update_lock); 1830 1831 /* Set the VRM version */ 1832 data->vrm = vid_which_vrm(); 1833 1834 /* Initialize the ADM1026 chip */ 1835 adm1026_init_client(client); 1836 1837 /* sysfs hooks */ 1838 data->groups[0] = &adm1026_group; 1839 if (data->config1 & CFG1_AIN8_9) 1840 data->groups[1] = &adm1026_group_in8_9; 1841 else 1842 data->groups[1] = &adm1026_group_temp3; 1843 1844 hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, 1845 data, data->groups); 1846 return PTR_ERR_OR_ZERO(hwmon_dev); 1847 } 1848 1849 static const struct i2c_device_id adm1026_id[] = { 1850 { "adm1026", 0 }, 1851 { } 1852 }; 1853 MODULE_DEVICE_TABLE(i2c, adm1026_id); 1854 1855 static struct i2c_driver adm1026_driver = { 1856 .class = I2C_CLASS_HWMON, 1857 .driver = { 1858 .name = "adm1026", 1859 }, 1860 .probe = adm1026_probe, 1861 .id_table = adm1026_id, 1862 .detect = adm1026_detect, 1863 .address_list = normal_i2c, 1864 }; 1865 1866 module_i2c_driver(adm1026_driver); 1867 1868 MODULE_LICENSE("GPL"); 1869 MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, " 1870 "Justin Thiessen <jthiessen@penguincomputing.com>"); 1871 MODULE_DESCRIPTION("ADM1026 driver"); 1872