1 /* 2 adm1026.c - Part of lm_sensors, Linux kernel modules for hardware 3 monitoring 4 Copyright (C) 2002, 2003 Philip Pokorny <ppokorny@penguincomputing.com> 5 Copyright (C) 2004 Justin Thiessen <jthiessen@penguincomputing.com> 6 7 Chip details at: 8 9 <http://www.onsemi.com/PowerSolutions/product.do?id=ADM1026> 10 11 This program is free software; you can redistribute it and/or modify 12 it under the terms of the GNU General Public License as published by 13 the Free Software Foundation; either version 2 of the License, or 14 (at your option) any later version. 15 16 This program is distributed in the hope that it will be useful, 17 but WITHOUT ANY WARRANTY; without even the implied warranty of 18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19 GNU General Public License for more details. 20 21 You should have received a copy of the GNU General Public License 22 along with this program; if not, write to the Free Software 23 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 24 */ 25 26 #include <linux/module.h> 27 #include <linux/init.h> 28 #include <linux/slab.h> 29 #include <linux/jiffies.h> 30 #include <linux/i2c.h> 31 #include <linux/hwmon.h> 32 #include <linux/hwmon-sysfs.h> 33 #include <linux/hwmon-vid.h> 34 #include <linux/err.h> 35 #include <linux/mutex.h> 36 37 /* Addresses to scan */ 38 static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END }; 39 40 static int gpio_input[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1, 41 -1, -1, -1, -1, -1, -1, -1, -1 }; 42 static int gpio_output[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1, 43 -1, -1, -1, -1, -1, -1, -1, -1 }; 44 static int gpio_inverted[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1, 45 -1, -1, -1, -1, -1, -1, -1, -1 }; 46 static int gpio_normal[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1, 47 -1, -1, -1, -1, -1, -1, -1, -1 }; 48 static int gpio_fan[8] = { -1, -1, -1, -1, -1, -1, -1, -1 }; 49 module_param_array(gpio_input, int, NULL, 0); 50 MODULE_PARM_DESC(gpio_input, "List of GPIO pins (0-16) to program as inputs"); 51 module_param_array(gpio_output, int, NULL, 0); 52 MODULE_PARM_DESC(gpio_output, "List of GPIO pins (0-16) to program as " 53 "outputs"); 54 module_param_array(gpio_inverted, int, NULL, 0); 55 MODULE_PARM_DESC(gpio_inverted, "List of GPIO pins (0-16) to program as " 56 "inverted"); 57 module_param_array(gpio_normal, int, NULL, 0); 58 MODULE_PARM_DESC(gpio_normal, "List of GPIO pins (0-16) to program as " 59 "normal/non-inverted"); 60 module_param_array(gpio_fan, int, NULL, 0); 61 MODULE_PARM_DESC(gpio_fan, "List of GPIO pins (0-7) to program as fan tachs"); 62 63 /* Many ADM1026 constants specified below */ 64 65 /* The ADM1026 registers */ 66 #define ADM1026_REG_CONFIG1 0x00 67 #define CFG1_MONITOR 0x01 68 #define CFG1_INT_ENABLE 0x02 69 #define CFG1_INT_CLEAR 0x04 70 #define CFG1_AIN8_9 0x08 71 #define CFG1_THERM_HOT 0x10 72 #define CFG1_DAC_AFC 0x20 73 #define CFG1_PWM_AFC 0x40 74 #define CFG1_RESET 0x80 75 76 #define ADM1026_REG_CONFIG2 0x01 77 /* CONFIG2 controls FAN0/GPIO0 through FAN7/GPIO7 */ 78 79 #define ADM1026_REG_CONFIG3 0x07 80 #define CFG3_GPIO16_ENABLE 0x01 81 #define CFG3_CI_CLEAR 0x02 82 #define CFG3_VREF_250 0x04 83 #define CFG3_GPIO16_DIR 0x40 84 #define CFG3_GPIO16_POL 0x80 85 86 #define ADM1026_REG_E2CONFIG 0x13 87 #define E2CFG_READ 0x01 88 #define E2CFG_WRITE 0x02 89 #define E2CFG_ERASE 0x04 90 #define E2CFG_ROM 0x08 91 #define E2CFG_CLK_EXT 0x80 92 93 /* There are 10 general analog inputs and 7 dedicated inputs 94 * They are: 95 * 0 - 9 = AIN0 - AIN9 96 * 10 = Vbat 97 * 11 = 3.3V Standby 98 * 12 = 3.3V Main 99 * 13 = +5V 100 * 14 = Vccp (CPU core voltage) 101 * 15 = +12V 102 * 16 = -12V 103 */ 104 static u16 ADM1026_REG_IN[] = { 105 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 106 0x36, 0x37, 0x27, 0x29, 0x26, 0x2a, 107 0x2b, 0x2c, 0x2d, 0x2e, 0x2f 108 }; 109 static u16 ADM1026_REG_IN_MIN[] = { 110 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 111 0x5e, 0x5f, 0x6d, 0x49, 0x6b, 0x4a, 112 0x4b, 0x4c, 0x4d, 0x4e, 0x4f 113 }; 114 static u16 ADM1026_REG_IN_MAX[] = { 115 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 116 0x56, 0x57, 0x6c, 0x41, 0x6a, 0x42, 117 0x43, 0x44, 0x45, 0x46, 0x47 118 }; 119 120 /* Temperatures are: 121 * 0 - Internal 122 * 1 - External 1 123 * 2 - External 2 124 */ 125 static u16 ADM1026_REG_TEMP[] = { 0x1f, 0x28, 0x29 }; 126 static u16 ADM1026_REG_TEMP_MIN[] = { 0x69, 0x48, 0x49 }; 127 static u16 ADM1026_REG_TEMP_MAX[] = { 0x68, 0x40, 0x41 }; 128 static u16 ADM1026_REG_TEMP_TMIN[] = { 0x10, 0x11, 0x12 }; 129 static u16 ADM1026_REG_TEMP_THERM[] = { 0x0d, 0x0e, 0x0f }; 130 static u16 ADM1026_REG_TEMP_OFFSET[] = { 0x1e, 0x6e, 0x6f }; 131 132 #define ADM1026_REG_FAN(nr) (0x38 + (nr)) 133 #define ADM1026_REG_FAN_MIN(nr) (0x60 + (nr)) 134 #define ADM1026_REG_FAN_DIV_0_3 0x02 135 #define ADM1026_REG_FAN_DIV_4_7 0x03 136 137 #define ADM1026_REG_DAC 0x04 138 #define ADM1026_REG_PWM 0x05 139 140 #define ADM1026_REG_GPIO_CFG_0_3 0x08 141 #define ADM1026_REG_GPIO_CFG_4_7 0x09 142 #define ADM1026_REG_GPIO_CFG_8_11 0x0a 143 #define ADM1026_REG_GPIO_CFG_12_15 0x0b 144 /* CFG_16 in REG_CFG3 */ 145 #define ADM1026_REG_GPIO_STATUS_0_7 0x24 146 #define ADM1026_REG_GPIO_STATUS_8_15 0x25 147 /* STATUS_16 in REG_STATUS4 */ 148 #define ADM1026_REG_GPIO_MASK_0_7 0x1c 149 #define ADM1026_REG_GPIO_MASK_8_15 0x1d 150 /* MASK_16 in REG_MASK4 */ 151 152 #define ADM1026_REG_COMPANY 0x16 153 #define ADM1026_REG_VERSTEP 0x17 154 /* These are the recognized values for the above regs */ 155 #define ADM1026_COMPANY_ANALOG_DEV 0x41 156 #define ADM1026_VERSTEP_GENERIC 0x40 157 #define ADM1026_VERSTEP_ADM1026 0x44 158 159 #define ADM1026_REG_MASK1 0x18 160 #define ADM1026_REG_MASK2 0x19 161 #define ADM1026_REG_MASK3 0x1a 162 #define ADM1026_REG_MASK4 0x1b 163 164 #define ADM1026_REG_STATUS1 0x20 165 #define ADM1026_REG_STATUS2 0x21 166 #define ADM1026_REG_STATUS3 0x22 167 #define ADM1026_REG_STATUS4 0x23 168 169 #define ADM1026_FAN_ACTIVATION_TEMP_HYST -6 170 #define ADM1026_FAN_CONTROL_TEMP_RANGE 20 171 #define ADM1026_PWM_MAX 255 172 173 /* Conversions. Rounding and limit checking is only done on the TO_REG 174 * variants. Note that you should be a bit careful with which arguments 175 * these macros are called: arguments may be evaluated more than once. 176 */ 177 178 /* IN are scaled according to built-in resistors. These are the 179 * voltages corresponding to 3/4 of full scale (192 or 0xc0) 180 * NOTE: The -12V input needs an additional factor to account 181 * for the Vref pullup resistor. 182 * NEG12_OFFSET = SCALE * Vref / V-192 - Vref 183 * = 13875 * 2.50 / 1.875 - 2500 184 * = 16000 185 * 186 * The values in this table are based on Table II, page 15 of the 187 * datasheet. 188 */ 189 static int adm1026_scaling[] = { /* .001 Volts */ 190 2250, 2250, 2250, 2250, 2250, 2250, 191 1875, 1875, 1875, 1875, 3000, 3330, 192 3330, 4995, 2250, 12000, 13875 193 }; 194 #define NEG12_OFFSET 16000 195 #define SCALE(val, from, to) (((val)*(to) + ((from)/2))/(from)) 196 #define INS_TO_REG(n, val) (SENSORS_LIMIT(SCALE(val, adm1026_scaling[n], 192),\ 197 0, 255)) 198 #define INS_FROM_REG(n, val) (SCALE(val, 192, adm1026_scaling[n])) 199 200 /* FAN speed is measured using 22.5kHz clock and counts for 2 pulses 201 * and we assume a 2 pulse-per-rev fan tach signal 202 * 22500 kHz * 60 (sec/min) * 2 (pulse) / 2 (pulse/rev) == 1350000 203 */ 204 #define FAN_TO_REG(val, div) ((val) <= 0 ? 0xff : \ 205 SENSORS_LIMIT(1350000/((val)*(div)), 1, 254)) 206 #define FAN_FROM_REG(val, div) ((val) == 0 ? -1:(val) == 0xff ? 0 : \ 207 1350000/((val)*(div))) 208 #define DIV_FROM_REG(val) (1<<(val)) 209 #define DIV_TO_REG(val) ((val) >= 8 ? 3 : (val) >= 4 ? 2 : (val) >= 2 ? 1 : 0) 210 211 /* Temperature is reported in 1 degC increments */ 212 #define TEMP_TO_REG(val) (SENSORS_LIMIT(((val)+((val)<0 ? -500 : 500))/1000,\ 213 -127, 127)) 214 #define TEMP_FROM_REG(val) ((val) * 1000) 215 #define OFFSET_TO_REG(val) (SENSORS_LIMIT(((val)+((val)<0 ? -500 : 500))/1000,\ 216 -127, 127)) 217 #define OFFSET_FROM_REG(val) ((val) * 1000) 218 219 #define PWM_TO_REG(val) (SENSORS_LIMIT(val, 0, 255)) 220 #define PWM_FROM_REG(val) (val) 221 222 #define PWM_MIN_TO_REG(val) ((val) & 0xf0) 223 #define PWM_MIN_FROM_REG(val) (((val) & 0xf0) + ((val) >> 4)) 224 225 /* Analog output is a voltage, and scaled to millivolts. The datasheet 226 * indicates that the DAC could be used to drive the fans, but in our 227 * example board (Arima HDAMA) it isn't connected to the fans at all. 228 */ 229 #define DAC_TO_REG(val) (SENSORS_LIMIT(((((val)*255)+500)/2500), 0, 255)) 230 #define DAC_FROM_REG(val) (((val)*2500)/255) 231 232 /* Chip sampling rates 233 * 234 * Some sensors are not updated more frequently than once per second 235 * so it doesn't make sense to read them more often than that. 236 * We cache the results and return the saved data if the driver 237 * is called again before a second has elapsed. 238 * 239 * Also, there is significant configuration data for this chip 240 * So, we keep the config data up to date in the cache 241 * when it is written and only sample it once every 5 *minutes* 242 */ 243 #define ADM1026_DATA_INTERVAL (1 * HZ) 244 #define ADM1026_CONFIG_INTERVAL (5 * 60 * HZ) 245 246 /* We allow for multiple chips in a single system. 247 * 248 * For each registered ADM1026, we need to keep state information 249 * at client->data. The adm1026_data structure is dynamically 250 * allocated, when a new client structure is allocated. */ 251 252 struct pwm_data { 253 u8 pwm; 254 u8 enable; 255 u8 auto_pwm_min; 256 }; 257 258 struct adm1026_data { 259 struct device *hwmon_dev; 260 261 struct mutex update_lock; 262 int valid; /* !=0 if following fields are valid */ 263 unsigned long last_reading; /* In jiffies */ 264 unsigned long last_config; /* In jiffies */ 265 266 u8 in[17]; /* Register value */ 267 u8 in_max[17]; /* Register value */ 268 u8 in_min[17]; /* Register value */ 269 s8 temp[3]; /* Register value */ 270 s8 temp_min[3]; /* Register value */ 271 s8 temp_max[3]; /* Register value */ 272 s8 temp_tmin[3]; /* Register value */ 273 s8 temp_crit[3]; /* Register value */ 274 s8 temp_offset[3]; /* Register value */ 275 u8 fan[8]; /* Register value */ 276 u8 fan_min[8]; /* Register value */ 277 u8 fan_div[8]; /* Decoded value */ 278 struct pwm_data pwm1; /* Pwm control values */ 279 u8 vrm; /* VRM version */ 280 u8 analog_out; /* Register value (DAC) */ 281 long alarms; /* Register encoding, combined */ 282 long alarm_mask; /* Register encoding, combined */ 283 long gpio; /* Register encoding, combined */ 284 long gpio_mask; /* Register encoding, combined */ 285 u8 gpio_config[17]; /* Decoded value */ 286 u8 config1; /* Register value */ 287 u8 config2; /* Register value */ 288 u8 config3; /* Register value */ 289 }; 290 291 static int adm1026_probe(struct i2c_client *client, 292 const struct i2c_device_id *id); 293 static int adm1026_detect(struct i2c_client *client, 294 struct i2c_board_info *info); 295 static int adm1026_remove(struct i2c_client *client); 296 static int adm1026_read_value(struct i2c_client *client, u8 reg); 297 static int adm1026_write_value(struct i2c_client *client, u8 reg, int value); 298 static void adm1026_print_gpio(struct i2c_client *client); 299 static void adm1026_fixup_gpio(struct i2c_client *client); 300 static struct adm1026_data *adm1026_update_device(struct device *dev); 301 static void adm1026_init_client(struct i2c_client *client); 302 303 304 static const struct i2c_device_id adm1026_id[] = { 305 { "adm1026", 0 }, 306 { } 307 }; 308 MODULE_DEVICE_TABLE(i2c, adm1026_id); 309 310 static struct i2c_driver adm1026_driver = { 311 .class = I2C_CLASS_HWMON, 312 .driver = { 313 .name = "adm1026", 314 }, 315 .probe = adm1026_probe, 316 .remove = adm1026_remove, 317 .id_table = adm1026_id, 318 .detect = adm1026_detect, 319 .address_list = normal_i2c, 320 }; 321 322 static int adm1026_read_value(struct i2c_client *client, u8 reg) 323 { 324 int res; 325 326 if (reg < 0x80) { 327 /* "RAM" locations */ 328 res = i2c_smbus_read_byte_data(client, reg) & 0xff; 329 } else { 330 /* EEPROM, do nothing */ 331 res = 0; 332 } 333 return res; 334 } 335 336 static int adm1026_write_value(struct i2c_client *client, u8 reg, int value) 337 { 338 int res; 339 340 if (reg < 0x80) { 341 /* "RAM" locations */ 342 res = i2c_smbus_write_byte_data(client, reg, value); 343 } else { 344 /* EEPROM, do nothing */ 345 res = 0; 346 } 347 return res; 348 } 349 350 static void adm1026_init_client(struct i2c_client *client) 351 { 352 int value, i; 353 struct adm1026_data *data = i2c_get_clientdata(client); 354 355 dev_dbg(&client->dev, "Initializing device\n"); 356 /* Read chip config */ 357 data->config1 = adm1026_read_value(client, ADM1026_REG_CONFIG1); 358 data->config2 = adm1026_read_value(client, ADM1026_REG_CONFIG2); 359 data->config3 = adm1026_read_value(client, ADM1026_REG_CONFIG3); 360 361 /* Inform user of chip config */ 362 dev_dbg(&client->dev, "ADM1026_REG_CONFIG1 is: 0x%02x\n", 363 data->config1); 364 if ((data->config1 & CFG1_MONITOR) == 0) { 365 dev_dbg(&client->dev, "Monitoring not currently " 366 "enabled.\n"); 367 } 368 if (data->config1 & CFG1_INT_ENABLE) { 369 dev_dbg(&client->dev, "SMBALERT interrupts are " 370 "enabled.\n"); 371 } 372 if (data->config1 & CFG1_AIN8_9) { 373 dev_dbg(&client->dev, "in8 and in9 enabled. " 374 "temp3 disabled.\n"); 375 } else { 376 dev_dbg(&client->dev, "temp3 enabled. in8 and " 377 "in9 disabled.\n"); 378 } 379 if (data->config1 & CFG1_THERM_HOT) { 380 dev_dbg(&client->dev, "Automatic THERM, PWM, " 381 "and temp limits enabled.\n"); 382 } 383 384 if (data->config3 & CFG3_GPIO16_ENABLE) { 385 dev_dbg(&client->dev, "GPIO16 enabled. THERM " 386 "pin disabled.\n"); 387 } else { 388 dev_dbg(&client->dev, "THERM pin enabled. " 389 "GPIO16 disabled.\n"); 390 } 391 if (data->config3 & CFG3_VREF_250) { 392 dev_dbg(&client->dev, "Vref is 2.50 Volts.\n"); 393 } else { 394 dev_dbg(&client->dev, "Vref is 1.82 Volts.\n"); 395 } 396 /* Read and pick apart the existing GPIO configuration */ 397 value = 0; 398 for (i = 0;i <= 15;++i) { 399 if ((i & 0x03) == 0) { 400 value = adm1026_read_value(client, 401 ADM1026_REG_GPIO_CFG_0_3 + i/4); 402 } 403 data->gpio_config[i] = value & 0x03; 404 value >>= 2; 405 } 406 data->gpio_config[16] = (data->config3 >> 6) & 0x03; 407 408 /* ... and then print it */ 409 adm1026_print_gpio(client); 410 411 /* If the user asks us to reprogram the GPIO config, then 412 * do it now. 413 */ 414 if (gpio_input[0] != -1 || gpio_output[0] != -1 415 || gpio_inverted[0] != -1 || gpio_normal[0] != -1 416 || gpio_fan[0] != -1) { 417 adm1026_fixup_gpio(client); 418 } 419 420 /* WE INTENTIONALLY make no changes to the limits, 421 * offsets, pwms, fans and zones. If they were 422 * configured, we don't want to mess with them. 423 * If they weren't, the default is 100% PWM, no 424 * control and will suffice until 'sensors -s' 425 * can be run by the user. We DO set the default 426 * value for pwm1.auto_pwm_min to its maximum 427 * so that enabling automatic pwm fan control 428 * without first setting a value for pwm1.auto_pwm_min 429 * will not result in potentially dangerous fan speed decrease. 430 */ 431 data->pwm1.auto_pwm_min=255; 432 /* Start monitoring */ 433 value = adm1026_read_value(client, ADM1026_REG_CONFIG1); 434 /* Set MONITOR, clear interrupt acknowledge and s/w reset */ 435 value = (value | CFG1_MONITOR) & (~CFG1_INT_CLEAR & ~CFG1_RESET); 436 dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value); 437 data->config1 = value; 438 adm1026_write_value(client, ADM1026_REG_CONFIG1, value); 439 440 /* initialize fan_div[] to hardware defaults */ 441 value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3) | 442 (adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7) << 8); 443 for (i = 0;i <= 7;++i) { 444 data->fan_div[i] = DIV_FROM_REG(value & 0x03); 445 value >>= 2; 446 } 447 } 448 449 static void adm1026_print_gpio(struct i2c_client *client) 450 { 451 struct adm1026_data *data = i2c_get_clientdata(client); 452 int i; 453 454 dev_dbg(&client->dev, "GPIO config is:\n"); 455 for (i = 0;i <= 7;++i) { 456 if (data->config2 & (1 << i)) { 457 dev_dbg(&client->dev, "\t%sGP%s%d\n", 458 data->gpio_config[i] & 0x02 ? "" : "!", 459 data->gpio_config[i] & 0x01 ? "OUT" : "IN", 460 i); 461 } else { 462 dev_dbg(&client->dev, "\tFAN%d\n", i); 463 } 464 } 465 for (i = 8;i <= 15;++i) { 466 dev_dbg(&client->dev, "\t%sGP%s%d\n", 467 data->gpio_config[i] & 0x02 ? "" : "!", 468 data->gpio_config[i] & 0x01 ? "OUT" : "IN", 469 i); 470 } 471 if (data->config3 & CFG3_GPIO16_ENABLE) { 472 dev_dbg(&client->dev, "\t%sGP%s16\n", 473 data->gpio_config[16] & 0x02 ? "" : "!", 474 data->gpio_config[16] & 0x01 ? "OUT" : "IN"); 475 } else { 476 /* GPIO16 is THERM */ 477 dev_dbg(&client->dev, "\tTHERM\n"); 478 } 479 } 480 481 static void adm1026_fixup_gpio(struct i2c_client *client) 482 { 483 struct adm1026_data *data = i2c_get_clientdata(client); 484 int i; 485 int value; 486 487 /* Make the changes requested. */ 488 /* We may need to unlock/stop monitoring or soft-reset the 489 * chip before we can make changes. This hasn't been 490 * tested much. FIXME 491 */ 492 493 /* Make outputs */ 494 for (i = 0;i <= 16;++i) { 495 if (gpio_output[i] >= 0 && gpio_output[i] <= 16) { 496 data->gpio_config[gpio_output[i]] |= 0x01; 497 } 498 /* if GPIO0-7 is output, it isn't a FAN tach */ 499 if (gpio_output[i] >= 0 && gpio_output[i] <= 7) { 500 data->config2 |= 1 << gpio_output[i]; 501 } 502 } 503 504 /* Input overrides output */ 505 for (i = 0;i <= 16;++i) { 506 if (gpio_input[i] >= 0 && gpio_input[i] <= 16) { 507 data->gpio_config[gpio_input[i]] &= ~ 0x01; 508 } 509 /* if GPIO0-7 is input, it isn't a FAN tach */ 510 if (gpio_input[i] >= 0 && gpio_input[i] <= 7) { 511 data->config2 |= 1 << gpio_input[i]; 512 } 513 } 514 515 /* Inverted */ 516 for (i = 0;i <= 16;++i) { 517 if (gpio_inverted[i] >= 0 && gpio_inverted[i] <= 16) { 518 data->gpio_config[gpio_inverted[i]] &= ~ 0x02; 519 } 520 } 521 522 /* Normal overrides inverted */ 523 for (i = 0;i <= 16;++i) { 524 if (gpio_normal[i] >= 0 && gpio_normal[i] <= 16) { 525 data->gpio_config[gpio_normal[i]] |= 0x02; 526 } 527 } 528 529 /* Fan overrides input and output */ 530 for (i = 0;i <= 7;++i) { 531 if (gpio_fan[i] >= 0 && gpio_fan[i] <= 7) { 532 data->config2 &= ~(1 << gpio_fan[i]); 533 } 534 } 535 536 /* Write new configs to registers */ 537 adm1026_write_value(client, ADM1026_REG_CONFIG2, data->config2); 538 data->config3 = (data->config3 & 0x3f) 539 | ((data->gpio_config[16] & 0x03) << 6); 540 adm1026_write_value(client, ADM1026_REG_CONFIG3, data->config3); 541 for (i = 15, value = 0;i >= 0;--i) { 542 value <<= 2; 543 value |= data->gpio_config[i] & 0x03; 544 if ((i & 0x03) == 0) { 545 adm1026_write_value(client, 546 ADM1026_REG_GPIO_CFG_0_3 + i/4, 547 value); 548 value = 0; 549 } 550 } 551 552 /* Print the new config */ 553 adm1026_print_gpio(client); 554 } 555 556 557 static struct adm1026_data *adm1026_update_device(struct device *dev) 558 { 559 struct i2c_client *client = to_i2c_client(dev); 560 struct adm1026_data *data = i2c_get_clientdata(client); 561 int i; 562 long value, alarms, gpio; 563 564 mutex_lock(&data->update_lock); 565 if (!data->valid 566 || time_after(jiffies, data->last_reading + ADM1026_DATA_INTERVAL)) { 567 /* Things that change quickly */ 568 dev_dbg(&client->dev, "Reading sensor values\n"); 569 for (i = 0;i <= 16;++i) { 570 data->in[i] = 571 adm1026_read_value(client, ADM1026_REG_IN[i]); 572 } 573 574 for (i = 0;i <= 7;++i) { 575 data->fan[i] = 576 adm1026_read_value(client, ADM1026_REG_FAN(i)); 577 } 578 579 for (i = 0;i <= 2;++i) { 580 /* NOTE: temp[] is s8 and we assume 2's complement 581 * "conversion" in the assignment */ 582 data->temp[i] = 583 adm1026_read_value(client, ADM1026_REG_TEMP[i]); 584 } 585 586 data->pwm1.pwm = adm1026_read_value(client, 587 ADM1026_REG_PWM); 588 data->analog_out = adm1026_read_value(client, 589 ADM1026_REG_DAC); 590 /* GPIO16 is MSbit of alarms, move it to gpio */ 591 alarms = adm1026_read_value(client, ADM1026_REG_STATUS4); 592 gpio = alarms & 0x80 ? 0x0100 : 0; /* GPIO16 */ 593 alarms &= 0x7f; 594 alarms <<= 8; 595 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS3); 596 alarms <<= 8; 597 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS2); 598 alarms <<= 8; 599 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS1); 600 data->alarms = alarms; 601 602 /* Read the GPIO values */ 603 gpio |= adm1026_read_value(client, 604 ADM1026_REG_GPIO_STATUS_8_15); 605 gpio <<= 8; 606 gpio |= adm1026_read_value(client, 607 ADM1026_REG_GPIO_STATUS_0_7); 608 data->gpio = gpio; 609 610 data->last_reading = jiffies; 611 }; /* last_reading */ 612 613 if (!data->valid || 614 time_after(jiffies, data->last_config + ADM1026_CONFIG_INTERVAL)) { 615 /* Things that don't change often */ 616 dev_dbg(&client->dev, "Reading config values\n"); 617 for (i = 0;i <= 16;++i) { 618 data->in_min[i] = adm1026_read_value(client, 619 ADM1026_REG_IN_MIN[i]); 620 data->in_max[i] = adm1026_read_value(client, 621 ADM1026_REG_IN_MAX[i]); 622 } 623 624 value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3) 625 | (adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7) 626 << 8); 627 for (i = 0;i <= 7;++i) { 628 data->fan_min[i] = adm1026_read_value(client, 629 ADM1026_REG_FAN_MIN(i)); 630 data->fan_div[i] = DIV_FROM_REG(value & 0x03); 631 value >>= 2; 632 } 633 634 for (i = 0; i <= 2; ++i) { 635 /* NOTE: temp_xxx[] are s8 and we assume 2's 636 * complement "conversion" in the assignment 637 */ 638 data->temp_min[i] = adm1026_read_value(client, 639 ADM1026_REG_TEMP_MIN[i]); 640 data->temp_max[i] = adm1026_read_value(client, 641 ADM1026_REG_TEMP_MAX[i]); 642 data->temp_tmin[i] = adm1026_read_value(client, 643 ADM1026_REG_TEMP_TMIN[i]); 644 data->temp_crit[i] = adm1026_read_value(client, 645 ADM1026_REG_TEMP_THERM[i]); 646 data->temp_offset[i] = adm1026_read_value(client, 647 ADM1026_REG_TEMP_OFFSET[i]); 648 } 649 650 /* Read the STATUS/alarm masks */ 651 alarms = adm1026_read_value(client, ADM1026_REG_MASK4); 652 gpio = alarms & 0x80 ? 0x0100 : 0; /* GPIO16 */ 653 alarms = (alarms & 0x7f) << 8; 654 alarms |= adm1026_read_value(client, ADM1026_REG_MASK3); 655 alarms <<= 8; 656 alarms |= adm1026_read_value(client, ADM1026_REG_MASK2); 657 alarms <<= 8; 658 alarms |= adm1026_read_value(client, ADM1026_REG_MASK1); 659 data->alarm_mask = alarms; 660 661 /* Read the GPIO values */ 662 gpio |= adm1026_read_value(client, 663 ADM1026_REG_GPIO_MASK_8_15); 664 gpio <<= 8; 665 gpio |= adm1026_read_value(client, ADM1026_REG_GPIO_MASK_0_7); 666 data->gpio_mask = gpio; 667 668 /* Read various values from CONFIG1 */ 669 data->config1 = adm1026_read_value(client, 670 ADM1026_REG_CONFIG1); 671 if (data->config1 & CFG1_PWM_AFC) { 672 data->pwm1.enable = 2; 673 data->pwm1.auto_pwm_min = 674 PWM_MIN_FROM_REG(data->pwm1.pwm); 675 } 676 /* Read the GPIO config */ 677 data->config2 = adm1026_read_value(client, 678 ADM1026_REG_CONFIG2); 679 data->config3 = adm1026_read_value(client, 680 ADM1026_REG_CONFIG3); 681 data->gpio_config[16] = (data->config3 >> 6) & 0x03; 682 683 value = 0; 684 for (i = 0;i <= 15;++i) { 685 if ((i & 0x03) == 0) { 686 value = adm1026_read_value(client, 687 ADM1026_REG_GPIO_CFG_0_3 + i/4); 688 } 689 data->gpio_config[i] = value & 0x03; 690 value >>= 2; 691 } 692 693 data->last_config = jiffies; 694 }; /* last_config */ 695 696 data->valid = 1; 697 mutex_unlock(&data->update_lock); 698 return data; 699 } 700 701 static ssize_t show_in(struct device *dev, struct device_attribute *attr, 702 char *buf) 703 { 704 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 705 int nr = sensor_attr->index; 706 struct adm1026_data *data = adm1026_update_device(dev); 707 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in[nr])); 708 } 709 static ssize_t show_in_min(struct device *dev, struct device_attribute *attr, 710 char *buf) 711 { 712 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 713 int nr = sensor_attr->index; 714 struct adm1026_data *data = adm1026_update_device(dev); 715 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_min[nr])); 716 } 717 static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, 718 const char *buf, size_t count) 719 { 720 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 721 int nr = sensor_attr->index; 722 struct i2c_client *client = to_i2c_client(dev); 723 struct adm1026_data *data = i2c_get_clientdata(client); 724 int val = simple_strtol(buf, NULL, 10); 725 726 mutex_lock(&data->update_lock); 727 data->in_min[nr] = INS_TO_REG(nr, val); 728 adm1026_write_value(client, ADM1026_REG_IN_MIN[nr], data->in_min[nr]); 729 mutex_unlock(&data->update_lock); 730 return count; 731 } 732 static ssize_t show_in_max(struct device *dev, struct device_attribute *attr, 733 char *buf) 734 { 735 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 736 int nr = sensor_attr->index; 737 struct adm1026_data *data = adm1026_update_device(dev); 738 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_max[nr])); 739 } 740 static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, 741 const char *buf, size_t count) 742 { 743 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 744 int nr = sensor_attr->index; 745 struct i2c_client *client = to_i2c_client(dev); 746 struct adm1026_data *data = i2c_get_clientdata(client); 747 int val = simple_strtol(buf, NULL, 10); 748 749 mutex_lock(&data->update_lock); 750 data->in_max[nr] = INS_TO_REG(nr, val); 751 adm1026_write_value(client, ADM1026_REG_IN_MAX[nr], data->in_max[nr]); 752 mutex_unlock(&data->update_lock); 753 return count; 754 } 755 756 #define in_reg(offset) \ 757 static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in, \ 758 NULL, offset); \ 759 static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ 760 show_in_min, set_in_min, offset); \ 761 static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ 762 show_in_max, set_in_max, offset); 763 764 765 in_reg(0); 766 in_reg(1); 767 in_reg(2); 768 in_reg(3); 769 in_reg(4); 770 in_reg(5); 771 in_reg(6); 772 in_reg(7); 773 in_reg(8); 774 in_reg(9); 775 in_reg(10); 776 in_reg(11); 777 in_reg(12); 778 in_reg(13); 779 in_reg(14); 780 in_reg(15); 781 782 static ssize_t show_in16(struct device *dev, struct device_attribute *attr, char *buf) 783 { 784 struct adm1026_data *data = adm1026_update_device(dev); 785 return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in[16]) - 786 NEG12_OFFSET); 787 } 788 static ssize_t show_in16_min(struct device *dev, struct device_attribute *attr, char *buf) 789 { 790 struct adm1026_data *data = adm1026_update_device(dev); 791 return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in_min[16]) 792 - NEG12_OFFSET); 793 } 794 static ssize_t set_in16_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) 795 { 796 struct i2c_client *client = to_i2c_client(dev); 797 struct adm1026_data *data = i2c_get_clientdata(client); 798 int val = simple_strtol(buf, NULL, 10); 799 800 mutex_lock(&data->update_lock); 801 data->in_min[16] = INS_TO_REG(16, val + NEG12_OFFSET); 802 adm1026_write_value(client, ADM1026_REG_IN_MIN[16], data->in_min[16]); 803 mutex_unlock(&data->update_lock); 804 return count; 805 } 806 static ssize_t show_in16_max(struct device *dev, struct device_attribute *attr, char *buf) 807 { 808 struct adm1026_data *data = adm1026_update_device(dev); 809 return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in_max[16]) 810 - NEG12_OFFSET); 811 } 812 static ssize_t set_in16_max(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) 813 { 814 struct i2c_client *client = to_i2c_client(dev); 815 struct adm1026_data *data = i2c_get_clientdata(client); 816 int val = simple_strtol(buf, NULL, 10); 817 818 mutex_lock(&data->update_lock); 819 data->in_max[16] = INS_TO_REG(16, val+NEG12_OFFSET); 820 adm1026_write_value(client, ADM1026_REG_IN_MAX[16], data->in_max[16]); 821 mutex_unlock(&data->update_lock); 822 return count; 823 } 824 825 static SENSOR_DEVICE_ATTR(in16_input, S_IRUGO, show_in16, NULL, 16); 826 static SENSOR_DEVICE_ATTR(in16_min, S_IRUGO | S_IWUSR, show_in16_min, set_in16_min, 16); 827 static SENSOR_DEVICE_ATTR(in16_max, S_IRUGO | S_IWUSR, show_in16_max, set_in16_max, 16); 828 829 830 831 832 /* Now add fan read/write functions */ 833 834 static ssize_t show_fan(struct device *dev, struct device_attribute *attr, 835 char *buf) 836 { 837 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 838 int nr = sensor_attr->index; 839 struct adm1026_data *data = adm1026_update_device(dev); 840 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr], 841 data->fan_div[nr])); 842 } 843 static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr, 844 char *buf) 845 { 846 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 847 int nr = sensor_attr->index; 848 struct adm1026_data *data = adm1026_update_device(dev); 849 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr], 850 data->fan_div[nr])); 851 } 852 static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, 853 const char *buf, size_t count) 854 { 855 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 856 int nr = sensor_attr->index; 857 struct i2c_client *client = to_i2c_client(dev); 858 struct adm1026_data *data = i2c_get_clientdata(client); 859 int val = simple_strtol(buf, NULL, 10); 860 861 mutex_lock(&data->update_lock); 862 data->fan_min[nr] = FAN_TO_REG(val, data->fan_div[nr]); 863 adm1026_write_value(client, ADM1026_REG_FAN_MIN(nr), 864 data->fan_min[nr]); 865 mutex_unlock(&data->update_lock); 866 return count; 867 } 868 869 #define fan_offset(offset) \ 870 static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan, NULL, \ 871 offset - 1); \ 872 static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ 873 show_fan_min, set_fan_min, offset - 1); 874 875 fan_offset(1); 876 fan_offset(2); 877 fan_offset(3); 878 fan_offset(4); 879 fan_offset(5); 880 fan_offset(6); 881 fan_offset(7); 882 fan_offset(8); 883 884 /* Adjust fan_min to account for new fan divisor */ 885 static void fixup_fan_min(struct device *dev, int fan, int old_div) 886 { 887 struct i2c_client *client = to_i2c_client(dev); 888 struct adm1026_data *data = i2c_get_clientdata(client); 889 int new_min; 890 int new_div = data->fan_div[fan]; 891 892 /* 0 and 0xff are special. Don't adjust them */ 893 if (data->fan_min[fan] == 0 || data->fan_min[fan] == 0xff) { 894 return; 895 } 896 897 new_min = data->fan_min[fan] * old_div / new_div; 898 new_min = SENSORS_LIMIT(new_min, 1, 254); 899 data->fan_min[fan] = new_min; 900 adm1026_write_value(client, ADM1026_REG_FAN_MIN(fan), new_min); 901 } 902 903 /* Now add fan_div read/write functions */ 904 static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr, 905 char *buf) 906 { 907 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 908 int nr = sensor_attr->index; 909 struct adm1026_data *data = adm1026_update_device(dev); 910 return sprintf(buf, "%d\n", data->fan_div[nr]); 911 } 912 static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, 913 const char *buf, size_t count) 914 { 915 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 916 int nr = sensor_attr->index; 917 struct i2c_client *client = to_i2c_client(dev); 918 struct adm1026_data *data = i2c_get_clientdata(client); 919 int val, orig_div, new_div; 920 921 val = simple_strtol(buf, NULL, 10); 922 new_div = DIV_TO_REG(val); 923 924 mutex_lock(&data->update_lock); 925 orig_div = data->fan_div[nr]; 926 data->fan_div[nr] = DIV_FROM_REG(new_div); 927 928 if (nr < 4) { /* 0 <= nr < 4 */ 929 adm1026_write_value(client, ADM1026_REG_FAN_DIV_0_3, 930 (DIV_TO_REG(data->fan_div[0]) << 0) | 931 (DIV_TO_REG(data->fan_div[1]) << 2) | 932 (DIV_TO_REG(data->fan_div[2]) << 4) | 933 (DIV_TO_REG(data->fan_div[3]) << 6)); 934 } else { /* 3 < nr < 8 */ 935 adm1026_write_value(client, ADM1026_REG_FAN_DIV_4_7, 936 (DIV_TO_REG(data->fan_div[4]) << 0) | 937 (DIV_TO_REG(data->fan_div[5]) << 2) | 938 (DIV_TO_REG(data->fan_div[6]) << 4) | 939 (DIV_TO_REG(data->fan_div[7]) << 6)); 940 } 941 942 if (data->fan_div[nr] != orig_div) { 943 fixup_fan_min(dev, nr, orig_div); 944 } 945 mutex_unlock(&data->update_lock); 946 return count; 947 } 948 949 #define fan_offset_div(offset) \ 950 static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \ 951 show_fan_div, set_fan_div, offset - 1); 952 953 fan_offset_div(1); 954 fan_offset_div(2); 955 fan_offset_div(3); 956 fan_offset_div(4); 957 fan_offset_div(5); 958 fan_offset_div(6); 959 fan_offset_div(7); 960 fan_offset_div(8); 961 962 /* Temps */ 963 static ssize_t show_temp(struct device *dev, struct device_attribute *attr, 964 char *buf) 965 { 966 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 967 int nr = sensor_attr->index; 968 struct adm1026_data *data = adm1026_update_device(dev); 969 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr])); 970 } 971 static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr, 972 char *buf) 973 { 974 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 975 int nr = sensor_attr->index; 976 struct adm1026_data *data = adm1026_update_device(dev); 977 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr])); 978 } 979 static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, 980 const char *buf, size_t count) 981 { 982 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 983 int nr = sensor_attr->index; 984 struct i2c_client *client = to_i2c_client(dev); 985 struct adm1026_data *data = i2c_get_clientdata(client); 986 int val = simple_strtol(buf, NULL, 10); 987 988 mutex_lock(&data->update_lock); 989 data->temp_min[nr] = TEMP_TO_REG(val); 990 adm1026_write_value(client, ADM1026_REG_TEMP_MIN[nr], 991 data->temp_min[nr]); 992 mutex_unlock(&data->update_lock); 993 return count; 994 } 995 static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr, 996 char *buf) 997 { 998 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 999 int nr = sensor_attr->index; 1000 struct adm1026_data *data = adm1026_update_device(dev); 1001 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr])); 1002 } 1003 static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, 1004 const char *buf, size_t count) 1005 { 1006 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1007 int nr = sensor_attr->index; 1008 struct i2c_client *client = to_i2c_client(dev); 1009 struct adm1026_data *data = i2c_get_clientdata(client); 1010 int val = simple_strtol(buf, NULL, 10); 1011 1012 mutex_lock(&data->update_lock); 1013 data->temp_max[nr] = TEMP_TO_REG(val); 1014 adm1026_write_value(client, ADM1026_REG_TEMP_MAX[nr], 1015 data->temp_max[nr]); 1016 mutex_unlock(&data->update_lock); 1017 return count; 1018 } 1019 1020 #define temp_reg(offset) \ 1021 static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp, \ 1022 NULL, offset - 1); \ 1023 static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \ 1024 show_temp_min, set_temp_min, offset - 1); \ 1025 static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \ 1026 show_temp_max, set_temp_max, offset - 1); 1027 1028 1029 temp_reg(1); 1030 temp_reg(2); 1031 temp_reg(3); 1032 1033 static ssize_t show_temp_offset(struct device *dev, 1034 struct device_attribute *attr, char *buf) 1035 { 1036 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1037 int nr = sensor_attr->index; 1038 struct adm1026_data *data = adm1026_update_device(dev); 1039 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_offset[nr])); 1040 } 1041 static ssize_t set_temp_offset(struct device *dev, 1042 struct device_attribute *attr, const char *buf, 1043 size_t count) 1044 { 1045 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1046 int nr = sensor_attr->index; 1047 struct i2c_client *client = to_i2c_client(dev); 1048 struct adm1026_data *data = i2c_get_clientdata(client); 1049 int val = simple_strtol(buf, NULL, 10); 1050 1051 mutex_lock(&data->update_lock); 1052 data->temp_offset[nr] = TEMP_TO_REG(val); 1053 adm1026_write_value(client, ADM1026_REG_TEMP_OFFSET[nr], 1054 data->temp_offset[nr]); 1055 mutex_unlock(&data->update_lock); 1056 return count; 1057 } 1058 1059 #define temp_offset_reg(offset) \ 1060 static SENSOR_DEVICE_ATTR(temp##offset##_offset, S_IRUGO | S_IWUSR, \ 1061 show_temp_offset, set_temp_offset, offset - 1); 1062 1063 temp_offset_reg(1); 1064 temp_offset_reg(2); 1065 temp_offset_reg(3); 1066 1067 static ssize_t show_temp_auto_point1_temp_hyst(struct device *dev, 1068 struct device_attribute *attr, char *buf) 1069 { 1070 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1071 int nr = sensor_attr->index; 1072 struct adm1026_data *data = adm1026_update_device(dev); 1073 return sprintf(buf, "%d\n", TEMP_FROM_REG( 1074 ADM1026_FAN_ACTIVATION_TEMP_HYST + data->temp_tmin[nr])); 1075 } 1076 static ssize_t show_temp_auto_point2_temp(struct device *dev, 1077 struct device_attribute *attr, char *buf) 1078 { 1079 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1080 int nr = sensor_attr->index; 1081 struct adm1026_data *data = adm1026_update_device(dev); 1082 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_tmin[nr] + 1083 ADM1026_FAN_CONTROL_TEMP_RANGE)); 1084 } 1085 static ssize_t show_temp_auto_point1_temp(struct device *dev, 1086 struct device_attribute *attr, char *buf) 1087 { 1088 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1089 int nr = sensor_attr->index; 1090 struct adm1026_data *data = adm1026_update_device(dev); 1091 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_tmin[nr])); 1092 } 1093 static ssize_t set_temp_auto_point1_temp(struct device *dev, 1094 struct device_attribute *attr, const char *buf, size_t count) 1095 { 1096 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1097 int nr = sensor_attr->index; 1098 struct i2c_client *client = to_i2c_client(dev); 1099 struct adm1026_data *data = i2c_get_clientdata(client); 1100 int val = simple_strtol(buf, NULL, 10); 1101 1102 mutex_lock(&data->update_lock); 1103 data->temp_tmin[nr] = TEMP_TO_REG(val); 1104 adm1026_write_value(client, ADM1026_REG_TEMP_TMIN[nr], 1105 data->temp_tmin[nr]); 1106 mutex_unlock(&data->update_lock); 1107 return count; 1108 } 1109 1110 #define temp_auto_point(offset) \ 1111 static SENSOR_DEVICE_ATTR(temp##offset##_auto_point1_temp, \ 1112 S_IRUGO | S_IWUSR, show_temp_auto_point1_temp, \ 1113 set_temp_auto_point1_temp, offset - 1); \ 1114 static SENSOR_DEVICE_ATTR(temp##offset##_auto_point1_temp_hyst, S_IRUGO,\ 1115 show_temp_auto_point1_temp_hyst, NULL, offset - 1); \ 1116 static SENSOR_DEVICE_ATTR(temp##offset##_auto_point2_temp, S_IRUGO, \ 1117 show_temp_auto_point2_temp, NULL, offset - 1); 1118 1119 temp_auto_point(1); 1120 temp_auto_point(2); 1121 temp_auto_point(3); 1122 1123 static ssize_t show_temp_crit_enable(struct device *dev, 1124 struct device_attribute *attr, char *buf) 1125 { 1126 struct adm1026_data *data = adm1026_update_device(dev); 1127 return sprintf(buf, "%d\n", (data->config1 & CFG1_THERM_HOT) >> 4); 1128 } 1129 static ssize_t set_temp_crit_enable(struct device *dev, 1130 struct device_attribute *attr, const char *buf, size_t count) 1131 { 1132 struct i2c_client *client = to_i2c_client(dev); 1133 struct adm1026_data *data = i2c_get_clientdata(client); 1134 int val = simple_strtol(buf, NULL, 10); 1135 1136 if ((val == 1) || (val==0)) { 1137 mutex_lock(&data->update_lock); 1138 data->config1 = (data->config1 & ~CFG1_THERM_HOT) | (val << 4); 1139 adm1026_write_value(client, ADM1026_REG_CONFIG1, 1140 data->config1); 1141 mutex_unlock(&data->update_lock); 1142 } 1143 return count; 1144 } 1145 1146 #define temp_crit_enable(offset) \ 1147 static DEVICE_ATTR(temp##offset##_crit_enable, S_IRUGO | S_IWUSR, \ 1148 show_temp_crit_enable, set_temp_crit_enable); 1149 1150 temp_crit_enable(1); 1151 temp_crit_enable(2); 1152 temp_crit_enable(3); 1153 1154 static ssize_t show_temp_crit(struct device *dev, 1155 struct device_attribute *attr, char *buf) 1156 { 1157 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1158 int nr = sensor_attr->index; 1159 struct adm1026_data *data = adm1026_update_device(dev); 1160 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[nr])); 1161 } 1162 static ssize_t set_temp_crit(struct device *dev, struct device_attribute *attr, 1163 const char *buf, size_t count) 1164 { 1165 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1166 int nr = sensor_attr->index; 1167 struct i2c_client *client = to_i2c_client(dev); 1168 struct adm1026_data *data = i2c_get_clientdata(client); 1169 int val = simple_strtol(buf, NULL, 10); 1170 1171 mutex_lock(&data->update_lock); 1172 data->temp_crit[nr] = TEMP_TO_REG(val); 1173 adm1026_write_value(client, ADM1026_REG_TEMP_THERM[nr], 1174 data->temp_crit[nr]); 1175 mutex_unlock(&data->update_lock); 1176 return count; 1177 } 1178 1179 #define temp_crit_reg(offset) \ 1180 static SENSOR_DEVICE_ATTR(temp##offset##_crit, S_IRUGO | S_IWUSR, \ 1181 show_temp_crit, set_temp_crit, offset - 1); 1182 1183 temp_crit_reg(1); 1184 temp_crit_reg(2); 1185 temp_crit_reg(3); 1186 1187 static ssize_t show_analog_out_reg(struct device *dev, struct device_attribute *attr, char *buf) 1188 { 1189 struct adm1026_data *data = adm1026_update_device(dev); 1190 return sprintf(buf, "%d\n", DAC_FROM_REG(data->analog_out)); 1191 } 1192 static ssize_t set_analog_out_reg(struct device *dev, struct device_attribute *attr, const char *buf, 1193 size_t count) 1194 { 1195 struct i2c_client *client = to_i2c_client(dev); 1196 struct adm1026_data *data = i2c_get_clientdata(client); 1197 int val = simple_strtol(buf, NULL, 10); 1198 1199 mutex_lock(&data->update_lock); 1200 data->analog_out = DAC_TO_REG(val); 1201 adm1026_write_value(client, ADM1026_REG_DAC, data->analog_out); 1202 mutex_unlock(&data->update_lock); 1203 return count; 1204 } 1205 1206 static DEVICE_ATTR(analog_out, S_IRUGO | S_IWUSR, show_analog_out_reg, 1207 set_analog_out_reg); 1208 1209 static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf) 1210 { 1211 struct adm1026_data *data = adm1026_update_device(dev); 1212 int vid = (data->gpio >> 11) & 0x1f; 1213 1214 dev_dbg(dev, "Setting VID from GPIO11-15.\n"); 1215 return sprintf(buf, "%d\n", vid_from_reg(vid, data->vrm)); 1216 } 1217 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL); 1218 1219 static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf) 1220 { 1221 struct adm1026_data *data = dev_get_drvdata(dev); 1222 return sprintf(buf, "%d\n", data->vrm); 1223 } 1224 static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, 1225 size_t count) 1226 { 1227 struct adm1026_data *data = dev_get_drvdata(dev); 1228 1229 data->vrm = simple_strtol(buf, NULL, 10); 1230 return count; 1231 } 1232 1233 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg); 1234 1235 static ssize_t show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf) 1236 { 1237 struct adm1026_data *data = adm1026_update_device(dev); 1238 return sprintf(buf, "%ld\n", data->alarms); 1239 } 1240 1241 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL); 1242 1243 static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, 1244 char *buf) 1245 { 1246 struct adm1026_data *data = adm1026_update_device(dev); 1247 int bitnr = to_sensor_dev_attr(attr)->index; 1248 return sprintf(buf, "%ld\n", (data->alarms >> bitnr) & 1); 1249 } 1250 1251 static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 0); 1252 static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 1); 1253 static SENSOR_DEVICE_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, 1); 1254 static SENSOR_DEVICE_ATTR(in11_alarm, S_IRUGO, show_alarm, NULL, 2); 1255 static SENSOR_DEVICE_ATTR(in12_alarm, S_IRUGO, show_alarm, NULL, 3); 1256 static SENSOR_DEVICE_ATTR(in13_alarm, S_IRUGO, show_alarm, NULL, 4); 1257 static SENSOR_DEVICE_ATTR(in14_alarm, S_IRUGO, show_alarm, NULL, 5); 1258 static SENSOR_DEVICE_ATTR(in15_alarm, S_IRUGO, show_alarm, NULL, 6); 1259 static SENSOR_DEVICE_ATTR(in16_alarm, S_IRUGO, show_alarm, NULL, 7); 1260 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 8); 1261 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 9); 1262 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 10); 1263 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 11); 1264 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 12); 1265 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 13); 1266 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 14); 1267 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 15); 1268 static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 16); 1269 static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 17); 1270 static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 18); 1271 static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 19); 1272 static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 20); 1273 static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 21); 1274 static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL, 22); 1275 static SENSOR_DEVICE_ATTR(fan8_alarm, S_IRUGO, show_alarm, NULL, 23); 1276 static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 24); 1277 static SENSOR_DEVICE_ATTR(in10_alarm, S_IRUGO, show_alarm, NULL, 25); 1278 static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 26); 1279 1280 static ssize_t show_alarm_mask(struct device *dev, struct device_attribute *attr, char *buf) 1281 { 1282 struct adm1026_data *data = adm1026_update_device(dev); 1283 return sprintf(buf, "%ld\n", data->alarm_mask); 1284 } 1285 static ssize_t set_alarm_mask(struct device *dev, struct device_attribute *attr, const char *buf, 1286 size_t count) 1287 { 1288 struct i2c_client *client = to_i2c_client(dev); 1289 struct adm1026_data *data = i2c_get_clientdata(client); 1290 int val = simple_strtol(buf, NULL, 10); 1291 unsigned long mask; 1292 1293 mutex_lock(&data->update_lock); 1294 data->alarm_mask = val & 0x7fffffff; 1295 mask = data->alarm_mask 1296 | (data->gpio_mask & 0x10000 ? 0x80000000 : 0); 1297 adm1026_write_value(client, ADM1026_REG_MASK1, 1298 mask & 0xff); 1299 mask >>= 8; 1300 adm1026_write_value(client, ADM1026_REG_MASK2, 1301 mask & 0xff); 1302 mask >>= 8; 1303 adm1026_write_value(client, ADM1026_REG_MASK3, 1304 mask & 0xff); 1305 mask >>= 8; 1306 adm1026_write_value(client, ADM1026_REG_MASK4, 1307 mask & 0xff); 1308 mutex_unlock(&data->update_lock); 1309 return count; 1310 } 1311 1312 static DEVICE_ATTR(alarm_mask, S_IRUGO | S_IWUSR, show_alarm_mask, 1313 set_alarm_mask); 1314 1315 1316 static ssize_t show_gpio(struct device *dev, struct device_attribute *attr, char *buf) 1317 { 1318 struct adm1026_data *data = adm1026_update_device(dev); 1319 return sprintf(buf, "%ld\n", data->gpio); 1320 } 1321 static ssize_t set_gpio(struct device *dev, struct device_attribute *attr, const char *buf, 1322 size_t count) 1323 { 1324 struct i2c_client *client = to_i2c_client(dev); 1325 struct adm1026_data *data = i2c_get_clientdata(client); 1326 int val = simple_strtol(buf, NULL, 10); 1327 long gpio; 1328 1329 mutex_lock(&data->update_lock); 1330 data->gpio = val & 0x1ffff; 1331 gpio = data->gpio; 1332 adm1026_write_value(client, ADM1026_REG_GPIO_STATUS_0_7, gpio & 0xff); 1333 gpio >>= 8; 1334 adm1026_write_value(client, ADM1026_REG_GPIO_STATUS_8_15, gpio & 0xff); 1335 gpio = ((gpio >> 1) & 0x80) | (data->alarms >> 24 & 0x7f); 1336 adm1026_write_value(client, ADM1026_REG_STATUS4, gpio & 0xff); 1337 mutex_unlock(&data->update_lock); 1338 return count; 1339 } 1340 1341 static DEVICE_ATTR(gpio, S_IRUGO | S_IWUSR, show_gpio, set_gpio); 1342 1343 1344 static ssize_t show_gpio_mask(struct device *dev, struct device_attribute *attr, char *buf) 1345 { 1346 struct adm1026_data *data = adm1026_update_device(dev); 1347 return sprintf(buf, "%ld\n", data->gpio_mask); 1348 } 1349 static ssize_t set_gpio_mask(struct device *dev, struct device_attribute *attr, const char *buf, 1350 size_t count) 1351 { 1352 struct i2c_client *client = to_i2c_client(dev); 1353 struct adm1026_data *data = i2c_get_clientdata(client); 1354 int val = simple_strtol(buf, NULL, 10); 1355 long mask; 1356 1357 mutex_lock(&data->update_lock); 1358 data->gpio_mask = val & 0x1ffff; 1359 mask = data->gpio_mask; 1360 adm1026_write_value(client, ADM1026_REG_GPIO_MASK_0_7, mask & 0xff); 1361 mask >>= 8; 1362 adm1026_write_value(client, ADM1026_REG_GPIO_MASK_8_15, mask & 0xff); 1363 mask = ((mask >> 1) & 0x80) | (data->alarm_mask >> 24 & 0x7f); 1364 adm1026_write_value(client, ADM1026_REG_MASK1, mask & 0xff); 1365 mutex_unlock(&data->update_lock); 1366 return count; 1367 } 1368 1369 static DEVICE_ATTR(gpio_mask, S_IRUGO | S_IWUSR, show_gpio_mask, set_gpio_mask); 1370 1371 static ssize_t show_pwm_reg(struct device *dev, struct device_attribute *attr, char *buf) 1372 { 1373 struct adm1026_data *data = adm1026_update_device(dev); 1374 return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm1.pwm)); 1375 } 1376 static ssize_t set_pwm_reg(struct device *dev, struct device_attribute *attr, const char *buf, 1377 size_t count) 1378 { 1379 struct i2c_client *client = to_i2c_client(dev); 1380 struct adm1026_data *data = i2c_get_clientdata(client); 1381 1382 if (data->pwm1.enable == 1) { 1383 int val = simple_strtol(buf, NULL, 10); 1384 1385 mutex_lock(&data->update_lock); 1386 data->pwm1.pwm = PWM_TO_REG(val); 1387 adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm); 1388 mutex_unlock(&data->update_lock); 1389 } 1390 return count; 1391 } 1392 static ssize_t show_auto_pwm_min(struct device *dev, struct device_attribute *attr, char *buf) 1393 { 1394 struct adm1026_data *data = adm1026_update_device(dev); 1395 return sprintf(buf, "%d\n", data->pwm1.auto_pwm_min); 1396 } 1397 static ssize_t set_auto_pwm_min(struct device *dev, struct device_attribute *attr, const char *buf, 1398 size_t count) 1399 { 1400 struct i2c_client *client = to_i2c_client(dev); 1401 struct adm1026_data *data = i2c_get_clientdata(client); 1402 int val = simple_strtol(buf, NULL, 10); 1403 1404 mutex_lock(&data->update_lock); 1405 data->pwm1.auto_pwm_min = SENSORS_LIMIT(val, 0, 255); 1406 if (data->pwm1.enable == 2) { /* apply immediately */ 1407 data->pwm1.pwm = PWM_TO_REG((data->pwm1.pwm & 0x0f) | 1408 PWM_MIN_TO_REG(data->pwm1.auto_pwm_min)); 1409 adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm); 1410 } 1411 mutex_unlock(&data->update_lock); 1412 return count; 1413 } 1414 static ssize_t show_auto_pwm_max(struct device *dev, struct device_attribute *attr, char *buf) 1415 { 1416 return sprintf(buf, "%d\n", ADM1026_PWM_MAX); 1417 } 1418 static ssize_t show_pwm_enable(struct device *dev, struct device_attribute *attr, char *buf) 1419 { 1420 struct adm1026_data *data = adm1026_update_device(dev); 1421 return sprintf(buf, "%d\n", data->pwm1.enable); 1422 } 1423 static ssize_t set_pwm_enable(struct device *dev, struct device_attribute *attr, const char *buf, 1424 size_t count) 1425 { 1426 struct i2c_client *client = to_i2c_client(dev); 1427 struct adm1026_data *data = i2c_get_clientdata(client); 1428 int val = simple_strtol(buf, NULL, 10); 1429 int old_enable; 1430 1431 if ((val >= 0) && (val < 3)) { 1432 mutex_lock(&data->update_lock); 1433 old_enable = data->pwm1.enable; 1434 data->pwm1.enable = val; 1435 data->config1 = (data->config1 & ~CFG1_PWM_AFC) 1436 | ((val == 2) ? CFG1_PWM_AFC : 0); 1437 adm1026_write_value(client, ADM1026_REG_CONFIG1, 1438 data->config1); 1439 if (val == 2) { /* apply pwm1_auto_pwm_min to pwm1 */ 1440 data->pwm1.pwm = PWM_TO_REG((data->pwm1.pwm & 0x0f) | 1441 PWM_MIN_TO_REG(data->pwm1.auto_pwm_min)); 1442 adm1026_write_value(client, ADM1026_REG_PWM, 1443 data->pwm1.pwm); 1444 } else if (!((old_enable == 1) && (val == 1))) { 1445 /* set pwm to safe value */ 1446 data->pwm1.pwm = 255; 1447 adm1026_write_value(client, ADM1026_REG_PWM, 1448 data->pwm1.pwm); 1449 } 1450 mutex_unlock(&data->update_lock); 1451 } 1452 return count; 1453 } 1454 1455 /* enable PWM fan control */ 1456 static DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm_reg, set_pwm_reg); 1457 static DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, show_pwm_reg, set_pwm_reg); 1458 static DEVICE_ATTR(pwm3, S_IRUGO | S_IWUSR, show_pwm_reg, set_pwm_reg); 1459 static DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, show_pwm_enable, 1460 set_pwm_enable); 1461 static DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR, show_pwm_enable, 1462 set_pwm_enable); 1463 static DEVICE_ATTR(pwm3_enable, S_IRUGO | S_IWUSR, show_pwm_enable, 1464 set_pwm_enable); 1465 static DEVICE_ATTR(temp1_auto_point1_pwm, S_IRUGO | S_IWUSR, 1466 show_auto_pwm_min, set_auto_pwm_min); 1467 static DEVICE_ATTR(temp2_auto_point1_pwm, S_IRUGO | S_IWUSR, 1468 show_auto_pwm_min, set_auto_pwm_min); 1469 static DEVICE_ATTR(temp3_auto_point1_pwm, S_IRUGO | S_IWUSR, 1470 show_auto_pwm_min, set_auto_pwm_min); 1471 1472 static DEVICE_ATTR(temp1_auto_point2_pwm, S_IRUGO, show_auto_pwm_max, NULL); 1473 static DEVICE_ATTR(temp2_auto_point2_pwm, S_IRUGO, show_auto_pwm_max, NULL); 1474 static DEVICE_ATTR(temp3_auto_point2_pwm, S_IRUGO, show_auto_pwm_max, NULL); 1475 1476 static struct attribute *adm1026_attributes[] = { 1477 &sensor_dev_attr_in0_input.dev_attr.attr, 1478 &sensor_dev_attr_in0_max.dev_attr.attr, 1479 &sensor_dev_attr_in0_min.dev_attr.attr, 1480 &sensor_dev_attr_in0_alarm.dev_attr.attr, 1481 &sensor_dev_attr_in1_input.dev_attr.attr, 1482 &sensor_dev_attr_in1_max.dev_attr.attr, 1483 &sensor_dev_attr_in1_min.dev_attr.attr, 1484 &sensor_dev_attr_in1_alarm.dev_attr.attr, 1485 &sensor_dev_attr_in2_input.dev_attr.attr, 1486 &sensor_dev_attr_in2_max.dev_attr.attr, 1487 &sensor_dev_attr_in2_min.dev_attr.attr, 1488 &sensor_dev_attr_in2_alarm.dev_attr.attr, 1489 &sensor_dev_attr_in3_input.dev_attr.attr, 1490 &sensor_dev_attr_in3_max.dev_attr.attr, 1491 &sensor_dev_attr_in3_min.dev_attr.attr, 1492 &sensor_dev_attr_in3_alarm.dev_attr.attr, 1493 &sensor_dev_attr_in4_input.dev_attr.attr, 1494 &sensor_dev_attr_in4_max.dev_attr.attr, 1495 &sensor_dev_attr_in4_min.dev_attr.attr, 1496 &sensor_dev_attr_in4_alarm.dev_attr.attr, 1497 &sensor_dev_attr_in5_input.dev_attr.attr, 1498 &sensor_dev_attr_in5_max.dev_attr.attr, 1499 &sensor_dev_attr_in5_min.dev_attr.attr, 1500 &sensor_dev_attr_in5_alarm.dev_attr.attr, 1501 &sensor_dev_attr_in6_input.dev_attr.attr, 1502 &sensor_dev_attr_in6_max.dev_attr.attr, 1503 &sensor_dev_attr_in6_min.dev_attr.attr, 1504 &sensor_dev_attr_in6_alarm.dev_attr.attr, 1505 &sensor_dev_attr_in7_input.dev_attr.attr, 1506 &sensor_dev_attr_in7_max.dev_attr.attr, 1507 &sensor_dev_attr_in7_min.dev_attr.attr, 1508 &sensor_dev_attr_in7_alarm.dev_attr.attr, 1509 &sensor_dev_attr_in10_input.dev_attr.attr, 1510 &sensor_dev_attr_in10_max.dev_attr.attr, 1511 &sensor_dev_attr_in10_min.dev_attr.attr, 1512 &sensor_dev_attr_in10_alarm.dev_attr.attr, 1513 &sensor_dev_attr_in11_input.dev_attr.attr, 1514 &sensor_dev_attr_in11_max.dev_attr.attr, 1515 &sensor_dev_attr_in11_min.dev_attr.attr, 1516 &sensor_dev_attr_in11_alarm.dev_attr.attr, 1517 &sensor_dev_attr_in12_input.dev_attr.attr, 1518 &sensor_dev_attr_in12_max.dev_attr.attr, 1519 &sensor_dev_attr_in12_min.dev_attr.attr, 1520 &sensor_dev_attr_in12_alarm.dev_attr.attr, 1521 &sensor_dev_attr_in13_input.dev_attr.attr, 1522 &sensor_dev_attr_in13_max.dev_attr.attr, 1523 &sensor_dev_attr_in13_min.dev_attr.attr, 1524 &sensor_dev_attr_in13_alarm.dev_attr.attr, 1525 &sensor_dev_attr_in14_input.dev_attr.attr, 1526 &sensor_dev_attr_in14_max.dev_attr.attr, 1527 &sensor_dev_attr_in14_min.dev_attr.attr, 1528 &sensor_dev_attr_in14_alarm.dev_attr.attr, 1529 &sensor_dev_attr_in15_input.dev_attr.attr, 1530 &sensor_dev_attr_in15_max.dev_attr.attr, 1531 &sensor_dev_attr_in15_min.dev_attr.attr, 1532 &sensor_dev_attr_in15_alarm.dev_attr.attr, 1533 &sensor_dev_attr_in16_input.dev_attr.attr, 1534 &sensor_dev_attr_in16_max.dev_attr.attr, 1535 &sensor_dev_attr_in16_min.dev_attr.attr, 1536 &sensor_dev_attr_in16_alarm.dev_attr.attr, 1537 &sensor_dev_attr_fan1_input.dev_attr.attr, 1538 &sensor_dev_attr_fan1_div.dev_attr.attr, 1539 &sensor_dev_attr_fan1_min.dev_attr.attr, 1540 &sensor_dev_attr_fan1_alarm.dev_attr.attr, 1541 &sensor_dev_attr_fan2_input.dev_attr.attr, 1542 &sensor_dev_attr_fan2_div.dev_attr.attr, 1543 &sensor_dev_attr_fan2_min.dev_attr.attr, 1544 &sensor_dev_attr_fan2_alarm.dev_attr.attr, 1545 &sensor_dev_attr_fan3_input.dev_attr.attr, 1546 &sensor_dev_attr_fan3_div.dev_attr.attr, 1547 &sensor_dev_attr_fan3_min.dev_attr.attr, 1548 &sensor_dev_attr_fan3_alarm.dev_attr.attr, 1549 &sensor_dev_attr_fan4_input.dev_attr.attr, 1550 &sensor_dev_attr_fan4_div.dev_attr.attr, 1551 &sensor_dev_attr_fan4_min.dev_attr.attr, 1552 &sensor_dev_attr_fan4_alarm.dev_attr.attr, 1553 &sensor_dev_attr_fan5_input.dev_attr.attr, 1554 &sensor_dev_attr_fan5_div.dev_attr.attr, 1555 &sensor_dev_attr_fan5_min.dev_attr.attr, 1556 &sensor_dev_attr_fan5_alarm.dev_attr.attr, 1557 &sensor_dev_attr_fan6_input.dev_attr.attr, 1558 &sensor_dev_attr_fan6_div.dev_attr.attr, 1559 &sensor_dev_attr_fan6_min.dev_attr.attr, 1560 &sensor_dev_attr_fan6_alarm.dev_attr.attr, 1561 &sensor_dev_attr_fan7_input.dev_attr.attr, 1562 &sensor_dev_attr_fan7_div.dev_attr.attr, 1563 &sensor_dev_attr_fan7_min.dev_attr.attr, 1564 &sensor_dev_attr_fan7_alarm.dev_attr.attr, 1565 &sensor_dev_attr_fan8_input.dev_attr.attr, 1566 &sensor_dev_attr_fan8_div.dev_attr.attr, 1567 &sensor_dev_attr_fan8_min.dev_attr.attr, 1568 &sensor_dev_attr_fan8_alarm.dev_attr.attr, 1569 &sensor_dev_attr_temp1_input.dev_attr.attr, 1570 &sensor_dev_attr_temp1_max.dev_attr.attr, 1571 &sensor_dev_attr_temp1_min.dev_attr.attr, 1572 &sensor_dev_attr_temp1_alarm.dev_attr.attr, 1573 &sensor_dev_attr_temp2_input.dev_attr.attr, 1574 &sensor_dev_attr_temp2_max.dev_attr.attr, 1575 &sensor_dev_attr_temp2_min.dev_attr.attr, 1576 &sensor_dev_attr_temp2_alarm.dev_attr.attr, 1577 &sensor_dev_attr_temp1_offset.dev_attr.attr, 1578 &sensor_dev_attr_temp2_offset.dev_attr.attr, 1579 &sensor_dev_attr_temp1_auto_point1_temp.dev_attr.attr, 1580 &sensor_dev_attr_temp2_auto_point1_temp.dev_attr.attr, 1581 &sensor_dev_attr_temp1_auto_point1_temp_hyst.dev_attr.attr, 1582 &sensor_dev_attr_temp2_auto_point1_temp_hyst.dev_attr.attr, 1583 &sensor_dev_attr_temp1_auto_point2_temp.dev_attr.attr, 1584 &sensor_dev_attr_temp2_auto_point2_temp.dev_attr.attr, 1585 &sensor_dev_attr_temp1_crit.dev_attr.attr, 1586 &sensor_dev_attr_temp2_crit.dev_attr.attr, 1587 &dev_attr_temp1_crit_enable.attr, 1588 &dev_attr_temp2_crit_enable.attr, 1589 &dev_attr_cpu0_vid.attr, 1590 &dev_attr_vrm.attr, 1591 &dev_attr_alarms.attr, 1592 &dev_attr_alarm_mask.attr, 1593 &dev_attr_gpio.attr, 1594 &dev_attr_gpio_mask.attr, 1595 &dev_attr_pwm1.attr, 1596 &dev_attr_pwm2.attr, 1597 &dev_attr_pwm3.attr, 1598 &dev_attr_pwm1_enable.attr, 1599 &dev_attr_pwm2_enable.attr, 1600 &dev_attr_pwm3_enable.attr, 1601 &dev_attr_temp1_auto_point1_pwm.attr, 1602 &dev_attr_temp2_auto_point1_pwm.attr, 1603 &dev_attr_temp1_auto_point2_pwm.attr, 1604 &dev_attr_temp2_auto_point2_pwm.attr, 1605 &dev_attr_analog_out.attr, 1606 NULL 1607 }; 1608 1609 static const struct attribute_group adm1026_group = { 1610 .attrs = adm1026_attributes, 1611 }; 1612 1613 static struct attribute *adm1026_attributes_temp3[] = { 1614 &sensor_dev_attr_temp3_input.dev_attr.attr, 1615 &sensor_dev_attr_temp3_max.dev_attr.attr, 1616 &sensor_dev_attr_temp3_min.dev_attr.attr, 1617 &sensor_dev_attr_temp3_alarm.dev_attr.attr, 1618 &sensor_dev_attr_temp3_offset.dev_attr.attr, 1619 &sensor_dev_attr_temp3_auto_point1_temp.dev_attr.attr, 1620 &sensor_dev_attr_temp3_auto_point1_temp_hyst.dev_attr.attr, 1621 &sensor_dev_attr_temp3_auto_point2_temp.dev_attr.attr, 1622 &sensor_dev_attr_temp3_crit.dev_attr.attr, 1623 &dev_attr_temp3_crit_enable.attr, 1624 &dev_attr_temp3_auto_point1_pwm.attr, 1625 &dev_attr_temp3_auto_point2_pwm.attr, 1626 NULL 1627 }; 1628 1629 static const struct attribute_group adm1026_group_temp3 = { 1630 .attrs = adm1026_attributes_temp3, 1631 }; 1632 1633 static struct attribute *adm1026_attributes_in8_9[] = { 1634 &sensor_dev_attr_in8_input.dev_attr.attr, 1635 &sensor_dev_attr_in8_max.dev_attr.attr, 1636 &sensor_dev_attr_in8_min.dev_attr.attr, 1637 &sensor_dev_attr_in8_alarm.dev_attr.attr, 1638 &sensor_dev_attr_in9_input.dev_attr.attr, 1639 &sensor_dev_attr_in9_max.dev_attr.attr, 1640 &sensor_dev_attr_in9_min.dev_attr.attr, 1641 &sensor_dev_attr_in9_alarm.dev_attr.attr, 1642 NULL 1643 }; 1644 1645 static const struct attribute_group adm1026_group_in8_9 = { 1646 .attrs = adm1026_attributes_in8_9, 1647 }; 1648 1649 /* Return 0 if detection is successful, -ENODEV otherwise */ 1650 static int adm1026_detect(struct i2c_client *client, 1651 struct i2c_board_info *info) 1652 { 1653 struct i2c_adapter *adapter = client->adapter; 1654 int address = client->addr; 1655 int company, verstep; 1656 1657 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { 1658 /* We need to be able to do byte I/O */ 1659 return -ENODEV; 1660 }; 1661 1662 /* Now, we do the remaining detection. */ 1663 1664 company = adm1026_read_value(client, ADM1026_REG_COMPANY); 1665 verstep = adm1026_read_value(client, ADM1026_REG_VERSTEP); 1666 1667 dev_dbg(&adapter->dev, "Detecting device at %d,0x%02x with" 1668 " COMPANY: 0x%02x and VERSTEP: 0x%02x\n", 1669 i2c_adapter_id(client->adapter), client->addr, 1670 company, verstep); 1671 1672 /* Determine the chip type. */ 1673 dev_dbg(&adapter->dev, "Autodetecting device at %d,0x%02x...\n", 1674 i2c_adapter_id(adapter), address); 1675 if (company == ADM1026_COMPANY_ANALOG_DEV 1676 && verstep == ADM1026_VERSTEP_ADM1026) { 1677 /* Analog Devices ADM1026 */ 1678 } else if (company == ADM1026_COMPANY_ANALOG_DEV 1679 && (verstep & 0xf0) == ADM1026_VERSTEP_GENERIC) { 1680 dev_err(&adapter->dev, "Unrecognized stepping " 1681 "0x%02x. Defaulting to ADM1026.\n", verstep); 1682 } else if ((verstep & 0xf0) == ADM1026_VERSTEP_GENERIC) { 1683 dev_err(&adapter->dev, "Found version/stepping " 1684 "0x%02x. Assuming generic ADM1026.\n", 1685 verstep); 1686 } else { 1687 dev_dbg(&adapter->dev, "Autodetection failed\n"); 1688 /* Not an ADM1026... */ 1689 return -ENODEV; 1690 } 1691 1692 strlcpy(info->type, "adm1026", I2C_NAME_SIZE); 1693 1694 return 0; 1695 } 1696 1697 static int adm1026_probe(struct i2c_client *client, 1698 const struct i2c_device_id *id) 1699 { 1700 struct adm1026_data *data; 1701 int err; 1702 1703 data = kzalloc(sizeof(struct adm1026_data), GFP_KERNEL); 1704 if (!data) { 1705 err = -ENOMEM; 1706 goto exit; 1707 } 1708 1709 i2c_set_clientdata(client, data); 1710 mutex_init(&data->update_lock); 1711 1712 /* Set the VRM version */ 1713 data->vrm = vid_which_vrm(); 1714 1715 /* Initialize the ADM1026 chip */ 1716 adm1026_init_client(client); 1717 1718 /* Register sysfs hooks */ 1719 if ((err = sysfs_create_group(&client->dev.kobj, &adm1026_group))) 1720 goto exitfree; 1721 if (data->config1 & CFG1_AIN8_9) 1722 err = sysfs_create_group(&client->dev.kobj, 1723 &adm1026_group_in8_9); 1724 else 1725 err = sysfs_create_group(&client->dev.kobj, 1726 &adm1026_group_temp3); 1727 if (err) 1728 goto exitremove; 1729 1730 data->hwmon_dev = hwmon_device_register(&client->dev); 1731 if (IS_ERR(data->hwmon_dev)) { 1732 err = PTR_ERR(data->hwmon_dev); 1733 goto exitremove; 1734 } 1735 1736 return 0; 1737 1738 /* Error out and cleanup code */ 1739 exitremove: 1740 sysfs_remove_group(&client->dev.kobj, &adm1026_group); 1741 if (data->config1 & CFG1_AIN8_9) 1742 sysfs_remove_group(&client->dev.kobj, &adm1026_group_in8_9); 1743 else 1744 sysfs_remove_group(&client->dev.kobj, &adm1026_group_temp3); 1745 exitfree: 1746 kfree(data); 1747 exit: 1748 return err; 1749 } 1750 1751 static int adm1026_remove(struct i2c_client *client) 1752 { 1753 struct adm1026_data *data = i2c_get_clientdata(client); 1754 hwmon_device_unregister(data->hwmon_dev); 1755 sysfs_remove_group(&client->dev.kobj, &adm1026_group); 1756 if (data->config1 & CFG1_AIN8_9) 1757 sysfs_remove_group(&client->dev.kobj, &adm1026_group_in8_9); 1758 else 1759 sysfs_remove_group(&client->dev.kobj, &adm1026_group_temp3); 1760 kfree(data); 1761 return 0; 1762 } 1763 1764 static int __init sm_adm1026_init(void) 1765 { 1766 return i2c_add_driver(&adm1026_driver); 1767 } 1768 1769 static void __exit sm_adm1026_exit(void) 1770 { 1771 i2c_del_driver(&adm1026_driver); 1772 } 1773 1774 MODULE_LICENSE("GPL"); 1775 MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, " 1776 "Justin Thiessen <jthiessen@penguincomputing.com>"); 1777 MODULE_DESCRIPTION("ADM1026 driver"); 1778 1779 module_init(sm_adm1026_init); 1780 module_exit(sm_adm1026_exit); 1781