1 /* 2 adm1026.c - Part of lm_sensors, Linux kernel modules for hardware 3 monitoring 4 Copyright (C) 2002, 2003 Philip Pokorny <ppokorny@penguincomputing.com> 5 Copyright (C) 2004 Justin Thiessen <jthiessen@penguincomputing.com> 6 7 Chip details at: 8 9 <http://www.analog.com/UploadedFiles/Data_Sheets/779263102ADM1026_a.pdf> 10 11 This program is free software; you can redistribute it and/or modify 12 it under the terms of the GNU General Public License as published by 13 the Free Software Foundation; either version 2 of the License, or 14 (at your option) any later version. 15 16 This program is distributed in the hope that it will be useful, 17 but WITHOUT ANY WARRANTY; without even the implied warranty of 18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19 GNU General Public License for more details. 20 21 You should have received a copy of the GNU General Public License 22 along with this program; if not, write to the Free Software 23 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 24 */ 25 26 #include <linux/module.h> 27 #include <linux/init.h> 28 #include <linux/slab.h> 29 #include <linux/jiffies.h> 30 #include <linux/i2c.h> 31 #include <linux/hwmon.h> 32 #include <linux/hwmon-sysfs.h> 33 #include <linux/hwmon-vid.h> 34 #include <linux/err.h> 35 #include <linux/mutex.h> 36 37 /* Addresses to scan */ 38 static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END }; 39 40 /* Insmod parameters */ 41 I2C_CLIENT_INSMOD_1(adm1026); 42 43 static int gpio_input[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1, 44 -1, -1, -1, -1, -1, -1, -1, -1 }; 45 static int gpio_output[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1, 46 -1, -1, -1, -1, -1, -1, -1, -1 }; 47 static int gpio_inverted[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1, 48 -1, -1, -1, -1, -1, -1, -1, -1 }; 49 static int gpio_normal[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1, 50 -1, -1, -1, -1, -1, -1, -1, -1 }; 51 static int gpio_fan[8] = { -1, -1, -1, -1, -1, -1, -1, -1 }; 52 module_param_array(gpio_input, int, NULL, 0); 53 MODULE_PARM_DESC(gpio_input, "List of GPIO pins (0-16) to program as inputs"); 54 module_param_array(gpio_output, int, NULL, 0); 55 MODULE_PARM_DESC(gpio_output, "List of GPIO pins (0-16) to program as " 56 "outputs"); 57 module_param_array(gpio_inverted, int, NULL, 0); 58 MODULE_PARM_DESC(gpio_inverted, "List of GPIO pins (0-16) to program as " 59 "inverted"); 60 module_param_array(gpio_normal, int, NULL, 0); 61 MODULE_PARM_DESC(gpio_normal, "List of GPIO pins (0-16) to program as " 62 "normal/non-inverted"); 63 module_param_array(gpio_fan, int, NULL, 0); 64 MODULE_PARM_DESC(gpio_fan, "List of GPIO pins (0-7) to program as fan tachs"); 65 66 /* Many ADM1026 constants specified below */ 67 68 /* The ADM1026 registers */ 69 #define ADM1026_REG_CONFIG1 0x00 70 #define CFG1_MONITOR 0x01 71 #define CFG1_INT_ENABLE 0x02 72 #define CFG1_INT_CLEAR 0x04 73 #define CFG1_AIN8_9 0x08 74 #define CFG1_THERM_HOT 0x10 75 #define CFG1_DAC_AFC 0x20 76 #define CFG1_PWM_AFC 0x40 77 #define CFG1_RESET 0x80 78 79 #define ADM1026_REG_CONFIG2 0x01 80 /* CONFIG2 controls FAN0/GPIO0 through FAN7/GPIO7 */ 81 82 #define ADM1026_REG_CONFIG3 0x07 83 #define CFG3_GPIO16_ENABLE 0x01 84 #define CFG3_CI_CLEAR 0x02 85 #define CFG3_VREF_250 0x04 86 #define CFG3_GPIO16_DIR 0x40 87 #define CFG3_GPIO16_POL 0x80 88 89 #define ADM1026_REG_E2CONFIG 0x13 90 #define E2CFG_READ 0x01 91 #define E2CFG_WRITE 0x02 92 #define E2CFG_ERASE 0x04 93 #define E2CFG_ROM 0x08 94 #define E2CFG_CLK_EXT 0x80 95 96 /* There are 10 general analog inputs and 7 dedicated inputs 97 * They are: 98 * 0 - 9 = AIN0 - AIN9 99 * 10 = Vbat 100 * 11 = 3.3V Standby 101 * 12 = 3.3V Main 102 * 13 = +5V 103 * 14 = Vccp (CPU core voltage) 104 * 15 = +12V 105 * 16 = -12V 106 */ 107 static u16 ADM1026_REG_IN[] = { 108 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 109 0x36, 0x37, 0x27, 0x29, 0x26, 0x2a, 110 0x2b, 0x2c, 0x2d, 0x2e, 0x2f 111 }; 112 static u16 ADM1026_REG_IN_MIN[] = { 113 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 114 0x5e, 0x5f, 0x6d, 0x49, 0x6b, 0x4a, 115 0x4b, 0x4c, 0x4d, 0x4e, 0x4f 116 }; 117 static u16 ADM1026_REG_IN_MAX[] = { 118 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 119 0x56, 0x57, 0x6c, 0x41, 0x6a, 0x42, 120 0x43, 0x44, 0x45, 0x46, 0x47 121 }; 122 123 /* Temperatures are: 124 * 0 - Internal 125 * 1 - External 1 126 * 2 - External 2 127 */ 128 static u16 ADM1026_REG_TEMP[] = { 0x1f, 0x28, 0x29 }; 129 static u16 ADM1026_REG_TEMP_MIN[] = { 0x69, 0x48, 0x49 }; 130 static u16 ADM1026_REG_TEMP_MAX[] = { 0x68, 0x40, 0x41 }; 131 static u16 ADM1026_REG_TEMP_TMIN[] = { 0x10, 0x11, 0x12 }; 132 static u16 ADM1026_REG_TEMP_THERM[] = { 0x0d, 0x0e, 0x0f }; 133 static u16 ADM1026_REG_TEMP_OFFSET[] = { 0x1e, 0x6e, 0x6f }; 134 135 #define ADM1026_REG_FAN(nr) (0x38 + (nr)) 136 #define ADM1026_REG_FAN_MIN(nr) (0x60 + (nr)) 137 #define ADM1026_REG_FAN_DIV_0_3 0x02 138 #define ADM1026_REG_FAN_DIV_4_7 0x03 139 140 #define ADM1026_REG_DAC 0x04 141 #define ADM1026_REG_PWM 0x05 142 143 #define ADM1026_REG_GPIO_CFG_0_3 0x08 144 #define ADM1026_REG_GPIO_CFG_4_7 0x09 145 #define ADM1026_REG_GPIO_CFG_8_11 0x0a 146 #define ADM1026_REG_GPIO_CFG_12_15 0x0b 147 /* CFG_16 in REG_CFG3 */ 148 #define ADM1026_REG_GPIO_STATUS_0_7 0x24 149 #define ADM1026_REG_GPIO_STATUS_8_15 0x25 150 /* STATUS_16 in REG_STATUS4 */ 151 #define ADM1026_REG_GPIO_MASK_0_7 0x1c 152 #define ADM1026_REG_GPIO_MASK_8_15 0x1d 153 /* MASK_16 in REG_MASK4 */ 154 155 #define ADM1026_REG_COMPANY 0x16 156 #define ADM1026_REG_VERSTEP 0x17 157 /* These are the recognized values for the above regs */ 158 #define ADM1026_COMPANY_ANALOG_DEV 0x41 159 #define ADM1026_VERSTEP_GENERIC 0x40 160 #define ADM1026_VERSTEP_ADM1026 0x44 161 162 #define ADM1026_REG_MASK1 0x18 163 #define ADM1026_REG_MASK2 0x19 164 #define ADM1026_REG_MASK3 0x1a 165 #define ADM1026_REG_MASK4 0x1b 166 167 #define ADM1026_REG_STATUS1 0x20 168 #define ADM1026_REG_STATUS2 0x21 169 #define ADM1026_REG_STATUS3 0x22 170 #define ADM1026_REG_STATUS4 0x23 171 172 #define ADM1026_FAN_ACTIVATION_TEMP_HYST -6 173 #define ADM1026_FAN_CONTROL_TEMP_RANGE 20 174 #define ADM1026_PWM_MAX 255 175 176 /* 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 /* IN are scaled acording to built-in resistors. These are the 182 * voltages corresponding to 3/4 of full scale (192 or 0xc0) 183 * NOTE: The -12V input needs an additional factor to account 184 * for the Vref pullup resistor. 185 * NEG12_OFFSET = SCALE * Vref / V-192 - Vref 186 * = 13875 * 2.50 / 1.875 - 2500 187 * = 16000 188 * 189 * The values in this table are based on Table II, page 15 of the 190 * datasheet. 191 */ 192 static int adm1026_scaling[] = { /* .001 Volts */ 193 2250, 2250, 2250, 2250, 2250, 2250, 194 1875, 1875, 1875, 1875, 3000, 3330, 195 3330, 4995, 2250, 12000, 13875 196 }; 197 #define NEG12_OFFSET 16000 198 #define SCALE(val, from, to) (((val)*(to) + ((from)/2))/(from)) 199 #define INS_TO_REG(n, val) (SENSORS_LIMIT(SCALE(val, adm1026_scaling[n], 192),\ 200 0, 255)) 201 #define INS_FROM_REG(n, val) (SCALE(val, 192, adm1026_scaling[n])) 202 203 /* FAN speed is measured using 22.5kHz clock and counts for 2 pulses 204 * and we assume a 2 pulse-per-rev fan tach signal 205 * 22500 kHz * 60 (sec/min) * 2 (pulse) / 2 (pulse/rev) == 1350000 206 */ 207 #define FAN_TO_REG(val, div) ((val) <= 0 ? 0xff : \ 208 SENSORS_LIMIT(1350000/((val)*(div)), 1, 254)) 209 #define FAN_FROM_REG(val, div) ((val) == 0 ? -1:(val) == 0xff ? 0 : \ 210 1350000/((val)*(div))) 211 #define DIV_FROM_REG(val) (1<<(val)) 212 #define DIV_TO_REG(val) ((val) >= 8 ? 3 : (val) >= 4 ? 2 : (val) >= 2 ? 1 : 0) 213 214 /* Temperature is reported in 1 degC increments */ 215 #define TEMP_TO_REG(val) (SENSORS_LIMIT(((val)+((val)<0 ? -500 : 500))/1000,\ 216 -127, 127)) 217 #define TEMP_FROM_REG(val) ((val) * 1000) 218 #define OFFSET_TO_REG(val) (SENSORS_LIMIT(((val)+((val)<0 ? -500 : 500))/1000,\ 219 -127, 127)) 220 #define OFFSET_FROM_REG(val) ((val) * 1000) 221 222 #define PWM_TO_REG(val) (SENSORS_LIMIT(val, 0, 255)) 223 #define PWM_FROM_REG(val) (val) 224 225 #define PWM_MIN_TO_REG(val) ((val) & 0xf0) 226 #define PWM_MIN_FROM_REG(val) (((val) & 0xf0) + ((val) >> 4)) 227 228 /* Analog output is a voltage, and scaled to millivolts. The datasheet 229 * indicates that the DAC could be used to drive the fans, but in our 230 * example board (Arima HDAMA) it isn't connected to the fans at all. 231 */ 232 #define DAC_TO_REG(val) (SENSORS_LIMIT(((((val)*255)+500)/2500), 0, 255)) 233 #define DAC_FROM_REG(val) (((val)*2500)/255) 234 235 /* Chip sampling rates 236 * 237 * Some sensors are not updated more frequently than once per second 238 * so it doesn't make sense to read them more often than that. 239 * We cache the results and return the saved data if the driver 240 * is called again before a second has elapsed. 241 * 242 * Also, there is significant configuration data for this chip 243 * So, we keep the config data up to date in the cache 244 * when it is written and only sample it once every 5 *minutes* 245 */ 246 #define ADM1026_DATA_INTERVAL (1 * HZ) 247 #define ADM1026_CONFIG_INTERVAL (5 * 60 * HZ) 248 249 /* We allow for multiple chips in a single system. 250 * 251 * For each registered ADM1026, we need to keep state information 252 * at client->data. The adm1026_data structure is dynamically 253 * allocated, when a new client structure is allocated. */ 254 255 struct pwm_data { 256 u8 pwm; 257 u8 enable; 258 u8 auto_pwm_min; 259 }; 260 261 struct adm1026_data { 262 struct device *hwmon_dev; 263 264 struct mutex update_lock; 265 int valid; /* !=0 if following fields are valid */ 266 unsigned long last_reading; /* In jiffies */ 267 unsigned long last_config; /* In jiffies */ 268 269 u8 in[17]; /* Register value */ 270 u8 in_max[17]; /* Register value */ 271 u8 in_min[17]; /* Register value */ 272 s8 temp[3]; /* Register value */ 273 s8 temp_min[3]; /* Register value */ 274 s8 temp_max[3]; /* Register value */ 275 s8 temp_tmin[3]; /* Register value */ 276 s8 temp_crit[3]; /* Register value */ 277 s8 temp_offset[3]; /* Register value */ 278 u8 fan[8]; /* Register value */ 279 u8 fan_min[8]; /* Register value */ 280 u8 fan_div[8]; /* Decoded value */ 281 struct pwm_data pwm1; /* Pwm control values */ 282 int vid; /* Decoded value */ 283 u8 vrm; /* VRM version */ 284 u8 analog_out; /* Register value (DAC) */ 285 long alarms; /* Register encoding, combined */ 286 long alarm_mask; /* Register encoding, combined */ 287 long gpio; /* Register encoding, combined */ 288 long gpio_mask; /* Register encoding, combined */ 289 u8 gpio_config[17]; /* Decoded value */ 290 u8 config1; /* Register value */ 291 u8 config2; /* Register value */ 292 u8 config3; /* Register value */ 293 }; 294 295 static int adm1026_probe(struct i2c_client *client, 296 const struct i2c_device_id *id); 297 static int adm1026_detect(struct i2c_client *client, int kind, 298 struct i2c_board_info *info); 299 static int adm1026_remove(struct i2c_client *client); 300 static int adm1026_read_value(struct i2c_client *client, u8 reg); 301 static int adm1026_write_value(struct i2c_client *client, u8 reg, int value); 302 static void adm1026_print_gpio(struct i2c_client *client); 303 static void adm1026_fixup_gpio(struct i2c_client *client); 304 static struct adm1026_data *adm1026_update_device(struct device *dev); 305 static void adm1026_init_client(struct i2c_client *client); 306 307 308 static const struct i2c_device_id adm1026_id[] = { 309 { "adm1026", adm1026 }, 310 { } 311 }; 312 MODULE_DEVICE_TABLE(i2c, adm1026_id); 313 314 static struct i2c_driver adm1026_driver = { 315 .class = I2C_CLASS_HWMON, 316 .driver = { 317 .name = "adm1026", 318 }, 319 .probe = adm1026_probe, 320 .remove = adm1026_remove, 321 .id_table = adm1026_id, 322 .detect = adm1026_detect, 323 .address_data = &addr_data, 324 }; 325 326 static int adm1026_read_value(struct i2c_client *client, u8 reg) 327 { 328 int res; 329 330 if (reg < 0x80) { 331 /* "RAM" locations */ 332 res = i2c_smbus_read_byte_data(client, reg) & 0xff; 333 } else { 334 /* EEPROM, do nothing */ 335 res = 0; 336 } 337 return res; 338 } 339 340 static int adm1026_write_value(struct i2c_client *client, u8 reg, int value) 341 { 342 int res; 343 344 if (reg < 0x80) { 345 /* "RAM" locations */ 346 res = i2c_smbus_write_byte_data(client, reg, value); 347 } else { 348 /* EEPROM, do nothing */ 349 res = 0; 350 } 351 return res; 352 } 353 354 static void adm1026_init_client(struct i2c_client *client) 355 { 356 int value, i; 357 struct adm1026_data *data = i2c_get_clientdata(client); 358 359 dev_dbg(&client->dev, "Initializing device\n"); 360 /* Read chip config */ 361 data->config1 = adm1026_read_value(client, ADM1026_REG_CONFIG1); 362 data->config2 = adm1026_read_value(client, ADM1026_REG_CONFIG2); 363 data->config3 = adm1026_read_value(client, ADM1026_REG_CONFIG3); 364 365 /* Inform user of chip config */ 366 dev_dbg(&client->dev, "ADM1026_REG_CONFIG1 is: 0x%02x\n", 367 data->config1); 368 if ((data->config1 & CFG1_MONITOR) == 0) { 369 dev_dbg(&client->dev, "Monitoring not currently " 370 "enabled.\n"); 371 } 372 if (data->config1 & CFG1_INT_ENABLE) { 373 dev_dbg(&client->dev, "SMBALERT interrupts are " 374 "enabled.\n"); 375 } 376 if (data->config1 & CFG1_AIN8_9) { 377 dev_dbg(&client->dev, "in8 and in9 enabled. " 378 "temp3 disabled.\n"); 379 } else { 380 dev_dbg(&client->dev, "temp3 enabled. in8 and " 381 "in9 disabled.\n"); 382 } 383 if (data->config1 & CFG1_THERM_HOT) { 384 dev_dbg(&client->dev, "Automatic THERM, PWM, " 385 "and temp limits enabled.\n"); 386 } 387 388 if (data->config3 & CFG3_GPIO16_ENABLE) { 389 dev_dbg(&client->dev, "GPIO16 enabled. THERM " 390 "pin disabled.\n"); 391 } else { 392 dev_dbg(&client->dev, "THERM pin enabled. " 393 "GPIO16 disabled.\n"); 394 } 395 if (data->config3 & CFG3_VREF_250) { 396 dev_dbg(&client->dev, "Vref is 2.50 Volts.\n"); 397 } else { 398 dev_dbg(&client->dev, "Vref is 1.82 Volts.\n"); 399 } 400 /* Read and pick apart the existing GPIO configuration */ 401 value = 0; 402 for (i = 0;i <= 15;++i) { 403 if ((i & 0x03) == 0) { 404 value = adm1026_read_value(client, 405 ADM1026_REG_GPIO_CFG_0_3 + i/4); 406 } 407 data->gpio_config[i] = value & 0x03; 408 value >>= 2; 409 } 410 data->gpio_config[16] = (data->config3 >> 6) & 0x03; 411 412 /* ... and then print it */ 413 adm1026_print_gpio(client); 414 415 /* If the user asks us to reprogram the GPIO config, then 416 * do it now. 417 */ 418 if (gpio_input[0] != -1 || gpio_output[0] != -1 419 || gpio_inverted[0] != -1 || gpio_normal[0] != -1 420 || gpio_fan[0] != -1) { 421 adm1026_fixup_gpio(client); 422 } 423 424 /* WE INTENTIONALLY make no changes to the limits, 425 * offsets, pwms, fans and zones. If they were 426 * configured, we don't want to mess with them. 427 * If they weren't, the default is 100% PWM, no 428 * control and will suffice until 'sensors -s' 429 * can be run by the user. We DO set the default 430 * value for pwm1.auto_pwm_min to its maximum 431 * so that enabling automatic pwm fan control 432 * without first setting a value for pwm1.auto_pwm_min 433 * will not result in potentially dangerous fan speed decrease. 434 */ 435 data->pwm1.auto_pwm_min=255; 436 /* Start monitoring */ 437 value = adm1026_read_value(client, ADM1026_REG_CONFIG1); 438 /* Set MONITOR, clear interrupt acknowledge and s/w reset */ 439 value = (value | CFG1_MONITOR) & (~CFG1_INT_CLEAR & ~CFG1_RESET); 440 dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value); 441 data->config1 = value; 442 adm1026_write_value(client, ADM1026_REG_CONFIG1, value); 443 444 /* initialize fan_div[] to hardware defaults */ 445 value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3) | 446 (adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7) << 8); 447 for (i = 0;i <= 7;++i) { 448 data->fan_div[i] = DIV_FROM_REG(value & 0x03); 449 value >>= 2; 450 } 451 } 452 453 static void adm1026_print_gpio(struct i2c_client *client) 454 { 455 struct adm1026_data *data = i2c_get_clientdata(client); 456 int i; 457 458 dev_dbg(&client->dev, "GPIO config is:"); 459 for (i = 0;i <= 7;++i) { 460 if (data->config2 & (1 << i)) { 461 dev_dbg(&client->dev, "\t%sGP%s%d\n", 462 data->gpio_config[i] & 0x02 ? "" : "!", 463 data->gpio_config[i] & 0x01 ? "OUT" : "IN", 464 i); 465 } else { 466 dev_dbg(&client->dev, "\tFAN%d\n", i); 467 } 468 } 469 for (i = 8;i <= 15;++i) { 470 dev_dbg(&client->dev, "\t%sGP%s%d\n", 471 data->gpio_config[i] & 0x02 ? "" : "!", 472 data->gpio_config[i] & 0x01 ? "OUT" : "IN", 473 i); 474 } 475 if (data->config3 & CFG3_GPIO16_ENABLE) { 476 dev_dbg(&client->dev, "\t%sGP%s16\n", 477 data->gpio_config[16] & 0x02 ? "" : "!", 478 data->gpio_config[16] & 0x01 ? "OUT" : "IN"); 479 } else { 480 /* GPIO16 is THERM */ 481 dev_dbg(&client->dev, "\tTHERM\n"); 482 } 483 } 484 485 static void adm1026_fixup_gpio(struct i2c_client *client) 486 { 487 struct adm1026_data *data = i2c_get_clientdata(client); 488 int i; 489 int value; 490 491 /* Make the changes requested. */ 492 /* We may need to unlock/stop monitoring or soft-reset the 493 * chip before we can make changes. This hasn't been 494 * tested much. FIXME 495 */ 496 497 /* Make outputs */ 498 for (i = 0;i <= 16;++i) { 499 if (gpio_output[i] >= 0 && gpio_output[i] <= 16) { 500 data->gpio_config[gpio_output[i]] |= 0x01; 501 } 502 /* if GPIO0-7 is output, it isn't a FAN tach */ 503 if (gpio_output[i] >= 0 && gpio_output[i] <= 7) { 504 data->config2 |= 1 << gpio_output[i]; 505 } 506 } 507 508 /* Input overrides output */ 509 for (i = 0;i <= 16;++i) { 510 if (gpio_input[i] >= 0 && gpio_input[i] <= 16) { 511 data->gpio_config[gpio_input[i]] &= ~ 0x01; 512 } 513 /* if GPIO0-7 is input, it isn't a FAN tach */ 514 if (gpio_input[i] >= 0 && gpio_input[i] <= 7) { 515 data->config2 |= 1 << gpio_input[i]; 516 } 517 } 518 519 /* Inverted */ 520 for (i = 0;i <= 16;++i) { 521 if (gpio_inverted[i] >= 0 && gpio_inverted[i] <= 16) { 522 data->gpio_config[gpio_inverted[i]] &= ~ 0x02; 523 } 524 } 525 526 /* Normal overrides inverted */ 527 for (i = 0;i <= 16;++i) { 528 if (gpio_normal[i] >= 0 && gpio_normal[i] <= 16) { 529 data->gpio_config[gpio_normal[i]] |= 0x02; 530 } 531 } 532 533 /* Fan overrides input and output */ 534 for (i = 0;i <= 7;++i) { 535 if (gpio_fan[i] >= 0 && gpio_fan[i] <= 7) { 536 data->config2 &= ~(1 << gpio_fan[i]); 537 } 538 } 539 540 /* Write new configs to registers */ 541 adm1026_write_value(client, ADM1026_REG_CONFIG2, data->config2); 542 data->config3 = (data->config3 & 0x3f) 543 | ((data->gpio_config[16] & 0x03) << 6); 544 adm1026_write_value(client, ADM1026_REG_CONFIG3, data->config3); 545 for (i = 15, value = 0;i >= 0;--i) { 546 value <<= 2; 547 value |= data->gpio_config[i] & 0x03; 548 if ((i & 0x03) == 0) { 549 adm1026_write_value(client, 550 ADM1026_REG_GPIO_CFG_0_3 + i/4, 551 value); 552 value = 0; 553 } 554 } 555 556 /* Print the new config */ 557 adm1026_print_gpio(client); 558 } 559 560 561 static struct adm1026_data *adm1026_update_device(struct device *dev) 562 { 563 struct i2c_client *client = to_i2c_client(dev); 564 struct adm1026_data *data = i2c_get_clientdata(client); 565 int i; 566 long value, alarms, gpio; 567 568 mutex_lock(&data->update_lock); 569 if (!data->valid 570 || time_after(jiffies, data->last_reading + ADM1026_DATA_INTERVAL)) { 571 /* Things that change quickly */ 572 dev_dbg(&client->dev, "Reading sensor values\n"); 573 for (i = 0;i <= 16;++i) { 574 data->in[i] = 575 adm1026_read_value(client, ADM1026_REG_IN[i]); 576 } 577 578 for (i = 0;i <= 7;++i) { 579 data->fan[i] = 580 adm1026_read_value(client, ADM1026_REG_FAN(i)); 581 } 582 583 for (i = 0;i <= 2;++i) { 584 /* NOTE: temp[] is s8 and we assume 2's complement 585 * "conversion" in the assignment */ 586 data->temp[i] = 587 adm1026_read_value(client, ADM1026_REG_TEMP[i]); 588 } 589 590 data->pwm1.pwm = adm1026_read_value(client, 591 ADM1026_REG_PWM); 592 data->analog_out = adm1026_read_value(client, 593 ADM1026_REG_DAC); 594 /* GPIO16 is MSbit of alarms, move it to gpio */ 595 alarms = adm1026_read_value(client, ADM1026_REG_STATUS4); 596 gpio = alarms & 0x80 ? 0x0100 : 0; /* GPIO16 */ 597 alarms &= 0x7f; 598 alarms <<= 8; 599 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS3); 600 alarms <<= 8; 601 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS2); 602 alarms <<= 8; 603 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS1); 604 data->alarms = alarms; 605 606 /* Read the GPIO values */ 607 gpio |= adm1026_read_value(client, 608 ADM1026_REG_GPIO_STATUS_8_15); 609 gpio <<= 8; 610 gpio |= adm1026_read_value(client, 611 ADM1026_REG_GPIO_STATUS_0_7); 612 data->gpio = gpio; 613 614 data->last_reading = jiffies; 615 }; /* last_reading */ 616 617 if (!data->valid || 618 time_after(jiffies, data->last_config + ADM1026_CONFIG_INTERVAL)) { 619 /* Things that don't change often */ 620 dev_dbg(&client->dev, "Reading config values\n"); 621 for (i = 0;i <= 16;++i) { 622 data->in_min[i] = adm1026_read_value(client, 623 ADM1026_REG_IN_MIN[i]); 624 data->in_max[i] = adm1026_read_value(client, 625 ADM1026_REG_IN_MAX[i]); 626 } 627 628 value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3) 629 | (adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7) 630 << 8); 631 for (i = 0;i <= 7;++i) { 632 data->fan_min[i] = adm1026_read_value(client, 633 ADM1026_REG_FAN_MIN(i)); 634 data->fan_div[i] = DIV_FROM_REG(value & 0x03); 635 value >>= 2; 636 } 637 638 for (i = 0; i <= 2; ++i) { 639 /* NOTE: temp_xxx[] are s8 and we assume 2's 640 * complement "conversion" in the assignment 641 */ 642 data->temp_min[i] = adm1026_read_value(client, 643 ADM1026_REG_TEMP_MIN[i]); 644 data->temp_max[i] = adm1026_read_value(client, 645 ADM1026_REG_TEMP_MAX[i]); 646 data->temp_tmin[i] = adm1026_read_value(client, 647 ADM1026_REG_TEMP_TMIN[i]); 648 data->temp_crit[i] = adm1026_read_value(client, 649 ADM1026_REG_TEMP_THERM[i]); 650 data->temp_offset[i] = adm1026_read_value(client, 651 ADM1026_REG_TEMP_OFFSET[i]); 652 } 653 654 /* Read the STATUS/alarm masks */ 655 alarms = adm1026_read_value(client, ADM1026_REG_MASK4); 656 gpio = alarms & 0x80 ? 0x0100 : 0; /* GPIO16 */ 657 alarms = (alarms & 0x7f) << 8; 658 alarms |= adm1026_read_value(client, ADM1026_REG_MASK3); 659 alarms <<= 8; 660 alarms |= adm1026_read_value(client, ADM1026_REG_MASK2); 661 alarms <<= 8; 662 alarms |= adm1026_read_value(client, ADM1026_REG_MASK1); 663 data->alarm_mask = alarms; 664 665 /* Read the GPIO values */ 666 gpio |= adm1026_read_value(client, 667 ADM1026_REG_GPIO_MASK_8_15); 668 gpio <<= 8; 669 gpio |= adm1026_read_value(client, ADM1026_REG_GPIO_MASK_0_7); 670 data->gpio_mask = gpio; 671 672 /* Read various values from CONFIG1 */ 673 data->config1 = adm1026_read_value(client, 674 ADM1026_REG_CONFIG1); 675 if (data->config1 & CFG1_PWM_AFC) { 676 data->pwm1.enable = 2; 677 data->pwm1.auto_pwm_min = 678 PWM_MIN_FROM_REG(data->pwm1.pwm); 679 } 680 /* Read the GPIO config */ 681 data->config2 = adm1026_read_value(client, 682 ADM1026_REG_CONFIG2); 683 data->config3 = adm1026_read_value(client, 684 ADM1026_REG_CONFIG3); 685 data->gpio_config[16] = (data->config3 >> 6) & 0x03; 686 687 value = 0; 688 for (i = 0;i <= 15;++i) { 689 if ((i & 0x03) == 0) { 690 value = adm1026_read_value(client, 691 ADM1026_REG_GPIO_CFG_0_3 + i/4); 692 } 693 data->gpio_config[i] = value & 0x03; 694 value >>= 2; 695 } 696 697 data->last_config = jiffies; 698 }; /* last_config */ 699 700 dev_dbg(&client->dev, "Setting VID from GPIO11-15.\n"); 701 data->vid = (data->gpio >> 11) & 0x1f; 702 data->valid = 1; 703 mutex_unlock(&data->update_lock); 704 return data; 705 } 706 707 static ssize_t show_in(struct device *dev, struct device_attribute *attr, 708 char *buf) 709 { 710 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 711 int nr = sensor_attr->index; 712 struct adm1026_data *data = adm1026_update_device(dev); 713 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in[nr])); 714 } 715 static ssize_t show_in_min(struct device *dev, struct device_attribute *attr, 716 char *buf) 717 { 718 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 719 int nr = sensor_attr->index; 720 struct adm1026_data *data = adm1026_update_device(dev); 721 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_min[nr])); 722 } 723 static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, 724 const char *buf, size_t count) 725 { 726 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 727 int nr = sensor_attr->index; 728 struct i2c_client *client = to_i2c_client(dev); 729 struct adm1026_data *data = i2c_get_clientdata(client); 730 int val = simple_strtol(buf, NULL, 10); 731 732 mutex_lock(&data->update_lock); 733 data->in_min[nr] = INS_TO_REG(nr, val); 734 adm1026_write_value(client, ADM1026_REG_IN_MIN[nr], data->in_min[nr]); 735 mutex_unlock(&data->update_lock); 736 return count; 737 } 738 static ssize_t show_in_max(struct device *dev, struct device_attribute *attr, 739 char *buf) 740 { 741 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 742 int nr = sensor_attr->index; 743 struct adm1026_data *data = adm1026_update_device(dev); 744 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_max[nr])); 745 } 746 static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, 747 const char *buf, size_t count) 748 { 749 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 750 int nr = sensor_attr->index; 751 struct i2c_client *client = to_i2c_client(dev); 752 struct adm1026_data *data = i2c_get_clientdata(client); 753 int val = simple_strtol(buf, NULL, 10); 754 755 mutex_lock(&data->update_lock); 756 data->in_max[nr] = INS_TO_REG(nr, val); 757 adm1026_write_value(client, ADM1026_REG_IN_MAX[nr], data->in_max[nr]); 758 mutex_unlock(&data->update_lock); 759 return count; 760 } 761 762 #define in_reg(offset) \ 763 static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in, \ 764 NULL, offset); \ 765 static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ 766 show_in_min, set_in_min, offset); \ 767 static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ 768 show_in_max, set_in_max, offset); 769 770 771 in_reg(0); 772 in_reg(1); 773 in_reg(2); 774 in_reg(3); 775 in_reg(4); 776 in_reg(5); 777 in_reg(6); 778 in_reg(7); 779 in_reg(8); 780 in_reg(9); 781 in_reg(10); 782 in_reg(11); 783 in_reg(12); 784 in_reg(13); 785 in_reg(14); 786 in_reg(15); 787 788 static ssize_t show_in16(struct device *dev, struct device_attribute *attr, char *buf) 789 { 790 struct adm1026_data *data = adm1026_update_device(dev); 791 return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in[16]) - 792 NEG12_OFFSET); 793 } 794 static ssize_t show_in16_min(struct device *dev, struct device_attribute *attr, char *buf) 795 { 796 struct adm1026_data *data = adm1026_update_device(dev); 797 return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in_min[16]) 798 - NEG12_OFFSET); 799 } 800 static ssize_t set_in16_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) 801 { 802 struct i2c_client *client = to_i2c_client(dev); 803 struct adm1026_data *data = i2c_get_clientdata(client); 804 int val = simple_strtol(buf, NULL, 10); 805 806 mutex_lock(&data->update_lock); 807 data->in_min[16] = INS_TO_REG(16, val + NEG12_OFFSET); 808 adm1026_write_value(client, ADM1026_REG_IN_MIN[16], data->in_min[16]); 809 mutex_unlock(&data->update_lock); 810 return count; 811 } 812 static ssize_t show_in16_max(struct device *dev, struct device_attribute *attr, char *buf) 813 { 814 struct adm1026_data *data = adm1026_update_device(dev); 815 return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in_max[16]) 816 - NEG12_OFFSET); 817 } 818 static ssize_t set_in16_max(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) 819 { 820 struct i2c_client *client = to_i2c_client(dev); 821 struct adm1026_data *data = i2c_get_clientdata(client); 822 int val = simple_strtol(buf, NULL, 10); 823 824 mutex_lock(&data->update_lock); 825 data->in_max[16] = INS_TO_REG(16, val+NEG12_OFFSET); 826 adm1026_write_value(client, ADM1026_REG_IN_MAX[16], data->in_max[16]); 827 mutex_unlock(&data->update_lock); 828 return count; 829 } 830 831 static SENSOR_DEVICE_ATTR(in16_input, S_IRUGO, show_in16, NULL, 16); 832 static SENSOR_DEVICE_ATTR(in16_min, S_IRUGO | S_IWUSR, show_in16_min, set_in16_min, 16); 833 static SENSOR_DEVICE_ATTR(in16_max, S_IRUGO | S_IWUSR, show_in16_max, set_in16_max, 16); 834 835 836 837 838 /* Now add fan read/write functions */ 839 840 static ssize_t show_fan(struct device *dev, struct device_attribute *attr, 841 char *buf) 842 { 843 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 844 int nr = sensor_attr->index; 845 struct adm1026_data *data = adm1026_update_device(dev); 846 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr], 847 data->fan_div[nr])); 848 } 849 static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr, 850 char *buf) 851 { 852 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 853 int nr = sensor_attr->index; 854 struct adm1026_data *data = adm1026_update_device(dev); 855 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr], 856 data->fan_div[nr])); 857 } 858 static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, 859 const char *buf, size_t count) 860 { 861 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 862 int nr = sensor_attr->index; 863 struct i2c_client *client = to_i2c_client(dev); 864 struct adm1026_data *data = i2c_get_clientdata(client); 865 int val = simple_strtol(buf, NULL, 10); 866 867 mutex_lock(&data->update_lock); 868 data->fan_min[nr] = FAN_TO_REG(val, data->fan_div[nr]); 869 adm1026_write_value(client, ADM1026_REG_FAN_MIN(nr), 870 data->fan_min[nr]); 871 mutex_unlock(&data->update_lock); 872 return count; 873 } 874 875 #define fan_offset(offset) \ 876 static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan, NULL, \ 877 offset - 1); \ 878 static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ 879 show_fan_min, set_fan_min, offset - 1); 880 881 fan_offset(1); 882 fan_offset(2); 883 fan_offset(3); 884 fan_offset(4); 885 fan_offset(5); 886 fan_offset(6); 887 fan_offset(7); 888 fan_offset(8); 889 890 /* Adjust fan_min to account for new fan divisor */ 891 static void fixup_fan_min(struct device *dev, int fan, int old_div) 892 { 893 struct i2c_client *client = to_i2c_client(dev); 894 struct adm1026_data *data = i2c_get_clientdata(client); 895 int new_min; 896 int new_div = data->fan_div[fan]; 897 898 /* 0 and 0xff are special. Don't adjust them */ 899 if (data->fan_min[fan] == 0 || data->fan_min[fan] == 0xff) { 900 return; 901 } 902 903 new_min = data->fan_min[fan] * old_div / new_div; 904 new_min = SENSORS_LIMIT(new_min, 1, 254); 905 data->fan_min[fan] = new_min; 906 adm1026_write_value(client, ADM1026_REG_FAN_MIN(fan), new_min); 907 } 908 909 /* Now add fan_div read/write functions */ 910 static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr, 911 char *buf) 912 { 913 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 914 int nr = sensor_attr->index; 915 struct adm1026_data *data = adm1026_update_device(dev); 916 return sprintf(buf, "%d\n", data->fan_div[nr]); 917 } 918 static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, 919 const char *buf, size_t count) 920 { 921 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 922 int nr = sensor_attr->index; 923 struct i2c_client *client = to_i2c_client(dev); 924 struct adm1026_data *data = i2c_get_clientdata(client); 925 int val, orig_div, new_div, shift; 926 927 val = simple_strtol(buf, NULL, 10); 928 new_div = DIV_TO_REG(val); 929 if (new_div == 0) { 930 return -EINVAL; 931 } 932 mutex_lock(&data->update_lock); 933 orig_div = data->fan_div[nr]; 934 data->fan_div[nr] = DIV_FROM_REG(new_div); 935 936 if (nr < 4) { /* 0 <= nr < 4 */ 937 shift = 2 * nr; 938 adm1026_write_value(client, ADM1026_REG_FAN_DIV_0_3, 939 ((DIV_TO_REG(orig_div) & (~(0x03 << shift))) | 940 (new_div << shift))); 941 } else { /* 3 < nr < 8 */ 942 shift = 2 * (nr - 4); 943 adm1026_write_value(client, ADM1026_REG_FAN_DIV_4_7, 944 ((DIV_TO_REG(orig_div) & (~(0x03 << (2 * shift)))) | 945 (new_div << shift))); 946 } 947 948 if (data->fan_div[nr] != orig_div) { 949 fixup_fan_min(dev, nr, orig_div); 950 } 951 mutex_unlock(&data->update_lock); 952 return count; 953 } 954 955 #define fan_offset_div(offset) \ 956 static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \ 957 show_fan_div, set_fan_div, offset - 1); 958 959 fan_offset_div(1); 960 fan_offset_div(2); 961 fan_offset_div(3); 962 fan_offset_div(4); 963 fan_offset_div(5); 964 fan_offset_div(6); 965 fan_offset_div(7); 966 fan_offset_div(8); 967 968 /* Temps */ 969 static ssize_t show_temp(struct device *dev, struct device_attribute *attr, 970 char *buf) 971 { 972 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 973 int nr = sensor_attr->index; 974 struct adm1026_data *data = adm1026_update_device(dev); 975 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr])); 976 } 977 static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr, 978 char *buf) 979 { 980 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 981 int nr = sensor_attr->index; 982 struct adm1026_data *data = adm1026_update_device(dev); 983 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr])); 984 } 985 static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, 986 const char *buf, size_t count) 987 { 988 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 989 int nr = sensor_attr->index; 990 struct i2c_client *client = to_i2c_client(dev); 991 struct adm1026_data *data = i2c_get_clientdata(client); 992 int val = simple_strtol(buf, NULL, 10); 993 994 mutex_lock(&data->update_lock); 995 data->temp_min[nr] = TEMP_TO_REG(val); 996 adm1026_write_value(client, ADM1026_REG_TEMP_MIN[nr], 997 data->temp_min[nr]); 998 mutex_unlock(&data->update_lock); 999 return count; 1000 } 1001 static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr, 1002 char *buf) 1003 { 1004 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1005 int nr = sensor_attr->index; 1006 struct adm1026_data *data = adm1026_update_device(dev); 1007 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr])); 1008 } 1009 static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, 1010 const char *buf, size_t count) 1011 { 1012 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1013 int nr = sensor_attr->index; 1014 struct i2c_client *client = to_i2c_client(dev); 1015 struct adm1026_data *data = i2c_get_clientdata(client); 1016 int val = simple_strtol(buf, NULL, 10); 1017 1018 mutex_lock(&data->update_lock); 1019 data->temp_max[nr] = TEMP_TO_REG(val); 1020 adm1026_write_value(client, ADM1026_REG_TEMP_MAX[nr], 1021 data->temp_max[nr]); 1022 mutex_unlock(&data->update_lock); 1023 return count; 1024 } 1025 1026 #define temp_reg(offset) \ 1027 static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp, \ 1028 NULL, offset - 1); \ 1029 static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \ 1030 show_temp_min, set_temp_min, offset - 1); \ 1031 static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \ 1032 show_temp_max, set_temp_max, offset - 1); 1033 1034 1035 temp_reg(1); 1036 temp_reg(2); 1037 temp_reg(3); 1038 1039 static ssize_t show_temp_offset(struct device *dev, 1040 struct device_attribute *attr, char *buf) 1041 { 1042 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1043 int nr = sensor_attr->index; 1044 struct adm1026_data *data = adm1026_update_device(dev); 1045 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_offset[nr])); 1046 } 1047 static ssize_t set_temp_offset(struct device *dev, 1048 struct device_attribute *attr, const char *buf, 1049 size_t count) 1050 { 1051 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1052 int nr = sensor_attr->index; 1053 struct i2c_client *client = to_i2c_client(dev); 1054 struct adm1026_data *data = i2c_get_clientdata(client); 1055 int val = simple_strtol(buf, NULL, 10); 1056 1057 mutex_lock(&data->update_lock); 1058 data->temp_offset[nr] = TEMP_TO_REG(val); 1059 adm1026_write_value(client, ADM1026_REG_TEMP_OFFSET[nr], 1060 data->temp_offset[nr]); 1061 mutex_unlock(&data->update_lock); 1062 return count; 1063 } 1064 1065 #define temp_offset_reg(offset) \ 1066 static SENSOR_DEVICE_ATTR(temp##offset##_offset, S_IRUGO | S_IWUSR, \ 1067 show_temp_offset, set_temp_offset, offset - 1); 1068 1069 temp_offset_reg(1); 1070 temp_offset_reg(2); 1071 temp_offset_reg(3); 1072 1073 static ssize_t show_temp_auto_point1_temp_hyst(struct device *dev, 1074 struct device_attribute *attr, char *buf) 1075 { 1076 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1077 int nr = sensor_attr->index; 1078 struct adm1026_data *data = adm1026_update_device(dev); 1079 return sprintf(buf, "%d\n", TEMP_FROM_REG( 1080 ADM1026_FAN_ACTIVATION_TEMP_HYST + data->temp_tmin[nr])); 1081 } 1082 static ssize_t show_temp_auto_point2_temp(struct device *dev, 1083 struct device_attribute *attr, char *buf) 1084 { 1085 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1086 int nr = sensor_attr->index; 1087 struct adm1026_data *data = adm1026_update_device(dev); 1088 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_tmin[nr] + 1089 ADM1026_FAN_CONTROL_TEMP_RANGE)); 1090 } 1091 static ssize_t show_temp_auto_point1_temp(struct device *dev, 1092 struct device_attribute *attr, char *buf) 1093 { 1094 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1095 int nr = sensor_attr->index; 1096 struct adm1026_data *data = adm1026_update_device(dev); 1097 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_tmin[nr])); 1098 } 1099 static ssize_t set_temp_auto_point1_temp(struct device *dev, 1100 struct device_attribute *attr, const char *buf, size_t count) 1101 { 1102 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1103 int nr = sensor_attr->index; 1104 struct i2c_client *client = to_i2c_client(dev); 1105 struct adm1026_data *data = i2c_get_clientdata(client); 1106 int val = simple_strtol(buf, NULL, 10); 1107 1108 mutex_lock(&data->update_lock); 1109 data->temp_tmin[nr] = TEMP_TO_REG(val); 1110 adm1026_write_value(client, ADM1026_REG_TEMP_TMIN[nr], 1111 data->temp_tmin[nr]); 1112 mutex_unlock(&data->update_lock); 1113 return count; 1114 } 1115 1116 #define temp_auto_point(offset) \ 1117 static SENSOR_DEVICE_ATTR(temp##offset##_auto_point1_temp, \ 1118 S_IRUGO | S_IWUSR, show_temp_auto_point1_temp, \ 1119 set_temp_auto_point1_temp, offset - 1); \ 1120 static SENSOR_DEVICE_ATTR(temp##offset##_auto_point1_temp_hyst, S_IRUGO,\ 1121 show_temp_auto_point1_temp_hyst, NULL, offset - 1); \ 1122 static SENSOR_DEVICE_ATTR(temp##offset##_auto_point2_temp, S_IRUGO, \ 1123 show_temp_auto_point2_temp, NULL, offset - 1); 1124 1125 temp_auto_point(1); 1126 temp_auto_point(2); 1127 temp_auto_point(3); 1128 1129 static ssize_t show_temp_crit_enable(struct device *dev, 1130 struct device_attribute *attr, char *buf) 1131 { 1132 struct adm1026_data *data = adm1026_update_device(dev); 1133 return sprintf(buf, "%d\n", (data->config1 & CFG1_THERM_HOT) >> 4); 1134 } 1135 static ssize_t set_temp_crit_enable(struct device *dev, 1136 struct device_attribute *attr, const char *buf, size_t count) 1137 { 1138 struct i2c_client *client = to_i2c_client(dev); 1139 struct adm1026_data *data = i2c_get_clientdata(client); 1140 int val = simple_strtol(buf, NULL, 10); 1141 1142 if ((val == 1) || (val==0)) { 1143 mutex_lock(&data->update_lock); 1144 data->config1 = (data->config1 & ~CFG1_THERM_HOT) | (val << 4); 1145 adm1026_write_value(client, ADM1026_REG_CONFIG1, 1146 data->config1); 1147 mutex_unlock(&data->update_lock); 1148 } 1149 return count; 1150 } 1151 1152 #define temp_crit_enable(offset) \ 1153 static DEVICE_ATTR(temp##offset##_crit_enable, S_IRUGO | S_IWUSR, \ 1154 show_temp_crit_enable, set_temp_crit_enable); 1155 1156 temp_crit_enable(1); 1157 temp_crit_enable(2); 1158 temp_crit_enable(3); 1159 1160 static ssize_t show_temp_crit(struct device *dev, 1161 struct device_attribute *attr, char *buf) 1162 { 1163 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1164 int nr = sensor_attr->index; 1165 struct adm1026_data *data = adm1026_update_device(dev); 1166 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[nr])); 1167 } 1168 static ssize_t set_temp_crit(struct device *dev, struct device_attribute *attr, 1169 const char *buf, size_t count) 1170 { 1171 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1172 int nr = sensor_attr->index; 1173 struct i2c_client *client = to_i2c_client(dev); 1174 struct adm1026_data *data = i2c_get_clientdata(client); 1175 int val = simple_strtol(buf, NULL, 10); 1176 1177 mutex_lock(&data->update_lock); 1178 data->temp_crit[nr] = TEMP_TO_REG(val); 1179 adm1026_write_value(client, ADM1026_REG_TEMP_THERM[nr], 1180 data->temp_crit[nr]); 1181 mutex_unlock(&data->update_lock); 1182 return count; 1183 } 1184 1185 #define temp_crit_reg(offset) \ 1186 static SENSOR_DEVICE_ATTR(temp##offset##_crit, S_IRUGO | S_IWUSR, \ 1187 show_temp_crit, set_temp_crit, offset - 1); 1188 1189 temp_crit_reg(1); 1190 temp_crit_reg(2); 1191 temp_crit_reg(3); 1192 1193 static ssize_t show_analog_out_reg(struct device *dev, struct device_attribute *attr, char *buf) 1194 { 1195 struct adm1026_data *data = adm1026_update_device(dev); 1196 return sprintf(buf, "%d\n", DAC_FROM_REG(data->analog_out)); 1197 } 1198 static ssize_t set_analog_out_reg(struct device *dev, struct device_attribute *attr, const char *buf, 1199 size_t count) 1200 { 1201 struct i2c_client *client = to_i2c_client(dev); 1202 struct adm1026_data *data = i2c_get_clientdata(client); 1203 int val = simple_strtol(buf, NULL, 10); 1204 1205 mutex_lock(&data->update_lock); 1206 data->analog_out = DAC_TO_REG(val); 1207 adm1026_write_value(client, ADM1026_REG_DAC, data->analog_out); 1208 mutex_unlock(&data->update_lock); 1209 return count; 1210 } 1211 1212 static DEVICE_ATTR(analog_out, S_IRUGO | S_IWUSR, show_analog_out_reg, 1213 set_analog_out_reg); 1214 1215 static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf) 1216 { 1217 struct adm1026_data *data = adm1026_update_device(dev); 1218 return sprintf(buf, "%d\n", vid_from_reg(data->vid & 0x3f, data->vrm)); 1219 } 1220 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL); 1221 1222 static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf) 1223 { 1224 struct adm1026_data *data = dev_get_drvdata(dev); 1225 return sprintf(buf, "%d\n", data->vrm); 1226 } 1227 static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, 1228 size_t count) 1229 { 1230 struct adm1026_data *data = dev_get_drvdata(dev); 1231 1232 data->vrm = simple_strtol(buf, NULL, 10); 1233 return count; 1234 } 1235 1236 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg); 1237 1238 static ssize_t show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf) 1239 { 1240 struct adm1026_data *data = adm1026_update_device(dev); 1241 return sprintf(buf, "%ld\n", data->alarms); 1242 } 1243 1244 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL); 1245 1246 static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, 1247 char *buf) 1248 { 1249 struct adm1026_data *data = adm1026_update_device(dev); 1250 int bitnr = to_sensor_dev_attr(attr)->index; 1251 return sprintf(buf, "%ld\n", (data->alarms >> bitnr) & 1); 1252 } 1253 1254 static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 0); 1255 static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 1); 1256 static SENSOR_DEVICE_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, 1); 1257 static SENSOR_DEVICE_ATTR(in11_alarm, S_IRUGO, show_alarm, NULL, 2); 1258 static SENSOR_DEVICE_ATTR(in12_alarm, S_IRUGO, show_alarm, NULL, 3); 1259 static SENSOR_DEVICE_ATTR(in13_alarm, S_IRUGO, show_alarm, NULL, 4); 1260 static SENSOR_DEVICE_ATTR(in14_alarm, S_IRUGO, show_alarm, NULL, 5); 1261 static SENSOR_DEVICE_ATTR(in15_alarm, S_IRUGO, show_alarm, NULL, 6); 1262 static SENSOR_DEVICE_ATTR(in16_alarm, S_IRUGO, show_alarm, NULL, 7); 1263 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 8); 1264 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 9); 1265 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 10); 1266 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 11); 1267 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 12); 1268 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 13); 1269 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 14); 1270 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 15); 1271 static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 16); 1272 static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 17); 1273 static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 18); 1274 static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 19); 1275 static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 20); 1276 static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 21); 1277 static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL, 22); 1278 static SENSOR_DEVICE_ATTR(fan8_alarm, S_IRUGO, show_alarm, NULL, 23); 1279 static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 24); 1280 static SENSOR_DEVICE_ATTR(in10_alarm, S_IRUGO, show_alarm, NULL, 25); 1281 static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 26); 1282 1283 static ssize_t show_alarm_mask(struct device *dev, struct device_attribute *attr, char *buf) 1284 { 1285 struct adm1026_data *data = adm1026_update_device(dev); 1286 return sprintf(buf, "%ld\n", data->alarm_mask); 1287 } 1288 static ssize_t set_alarm_mask(struct device *dev, struct device_attribute *attr, const char *buf, 1289 size_t count) 1290 { 1291 struct i2c_client *client = to_i2c_client(dev); 1292 struct adm1026_data *data = i2c_get_clientdata(client); 1293 int val = simple_strtol(buf, NULL, 10); 1294 unsigned long mask; 1295 1296 mutex_lock(&data->update_lock); 1297 data->alarm_mask = val & 0x7fffffff; 1298 mask = data->alarm_mask 1299 | (data->gpio_mask & 0x10000 ? 0x80000000 : 0); 1300 adm1026_write_value(client, ADM1026_REG_MASK1, 1301 mask & 0xff); 1302 mask >>= 8; 1303 adm1026_write_value(client, ADM1026_REG_MASK2, 1304 mask & 0xff); 1305 mask >>= 8; 1306 adm1026_write_value(client, ADM1026_REG_MASK3, 1307 mask & 0xff); 1308 mask >>= 8; 1309 adm1026_write_value(client, ADM1026_REG_MASK4, 1310 mask & 0xff); 1311 mutex_unlock(&data->update_lock); 1312 return count; 1313 } 1314 1315 static DEVICE_ATTR(alarm_mask, S_IRUGO | S_IWUSR, show_alarm_mask, 1316 set_alarm_mask); 1317 1318 1319 static ssize_t show_gpio(struct device *dev, struct device_attribute *attr, char *buf) 1320 { 1321 struct adm1026_data *data = adm1026_update_device(dev); 1322 return sprintf(buf, "%ld\n", data->gpio); 1323 } 1324 static ssize_t set_gpio(struct device *dev, struct device_attribute *attr, const char *buf, 1325 size_t count) 1326 { 1327 struct i2c_client *client = to_i2c_client(dev); 1328 struct adm1026_data *data = i2c_get_clientdata(client); 1329 int val = simple_strtol(buf, NULL, 10); 1330 long gpio; 1331 1332 mutex_lock(&data->update_lock); 1333 data->gpio = val & 0x1ffff; 1334 gpio = data->gpio; 1335 adm1026_write_value(client, ADM1026_REG_GPIO_STATUS_0_7, gpio & 0xff); 1336 gpio >>= 8; 1337 adm1026_write_value(client, ADM1026_REG_GPIO_STATUS_8_15, gpio & 0xff); 1338 gpio = ((gpio >> 1) & 0x80) | (data->alarms >> 24 & 0x7f); 1339 adm1026_write_value(client, ADM1026_REG_STATUS4, gpio & 0xff); 1340 mutex_unlock(&data->update_lock); 1341 return count; 1342 } 1343 1344 static DEVICE_ATTR(gpio, S_IRUGO | S_IWUSR, show_gpio, set_gpio); 1345 1346 1347 static ssize_t show_gpio_mask(struct device *dev, struct device_attribute *attr, char *buf) 1348 { 1349 struct adm1026_data *data = adm1026_update_device(dev); 1350 return sprintf(buf, "%ld\n", data->gpio_mask); 1351 } 1352 static ssize_t set_gpio_mask(struct device *dev, struct device_attribute *attr, const char *buf, 1353 size_t count) 1354 { 1355 struct i2c_client *client = to_i2c_client(dev); 1356 struct adm1026_data *data = i2c_get_clientdata(client); 1357 int val = simple_strtol(buf, NULL, 10); 1358 long mask; 1359 1360 mutex_lock(&data->update_lock); 1361 data->gpio_mask = val & 0x1ffff; 1362 mask = data->gpio_mask; 1363 adm1026_write_value(client, ADM1026_REG_GPIO_MASK_0_7, mask & 0xff); 1364 mask >>= 8; 1365 adm1026_write_value(client, ADM1026_REG_GPIO_MASK_8_15, mask & 0xff); 1366 mask = ((mask >> 1) & 0x80) | (data->alarm_mask >> 24 & 0x7f); 1367 adm1026_write_value(client, ADM1026_REG_MASK1, mask & 0xff); 1368 mutex_unlock(&data->update_lock); 1369 return count; 1370 } 1371 1372 static DEVICE_ATTR(gpio_mask, S_IRUGO | S_IWUSR, show_gpio_mask, set_gpio_mask); 1373 1374 static ssize_t show_pwm_reg(struct device *dev, struct device_attribute *attr, char *buf) 1375 { 1376 struct adm1026_data *data = adm1026_update_device(dev); 1377 return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm1.pwm)); 1378 } 1379 static ssize_t set_pwm_reg(struct device *dev, struct device_attribute *attr, const char *buf, 1380 size_t count) 1381 { 1382 struct i2c_client *client = to_i2c_client(dev); 1383 struct adm1026_data *data = i2c_get_clientdata(client); 1384 1385 if (data->pwm1.enable == 1) { 1386 int val = simple_strtol(buf, NULL, 10); 1387 1388 mutex_lock(&data->update_lock); 1389 data->pwm1.pwm = PWM_TO_REG(val); 1390 adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm); 1391 mutex_unlock(&data->update_lock); 1392 } 1393 return count; 1394 } 1395 static ssize_t show_auto_pwm_min(struct device *dev, struct device_attribute *attr, char *buf) 1396 { 1397 struct adm1026_data *data = adm1026_update_device(dev); 1398 return sprintf(buf, "%d\n", data->pwm1.auto_pwm_min); 1399 } 1400 static ssize_t set_auto_pwm_min(struct device *dev, struct device_attribute *attr, const char *buf, 1401 size_t count) 1402 { 1403 struct i2c_client *client = to_i2c_client(dev); 1404 struct adm1026_data *data = i2c_get_clientdata(client); 1405 int val = simple_strtol(buf, NULL, 10); 1406 1407 mutex_lock(&data->update_lock); 1408 data->pwm1.auto_pwm_min = SENSORS_LIMIT(val, 0, 255); 1409 if (data->pwm1.enable == 2) { /* apply immediately */ 1410 data->pwm1.pwm = PWM_TO_REG((data->pwm1.pwm & 0x0f) | 1411 PWM_MIN_TO_REG(data->pwm1.auto_pwm_min)); 1412 adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm); 1413 } 1414 mutex_unlock(&data->update_lock); 1415 return count; 1416 } 1417 static ssize_t show_auto_pwm_max(struct device *dev, struct device_attribute *attr, char *buf) 1418 { 1419 return sprintf(buf, "%d\n", ADM1026_PWM_MAX); 1420 } 1421 static ssize_t show_pwm_enable(struct device *dev, struct device_attribute *attr, char *buf) 1422 { 1423 struct adm1026_data *data = adm1026_update_device(dev); 1424 return sprintf(buf, "%d\n", data->pwm1.enable); 1425 } 1426 static ssize_t set_pwm_enable(struct device *dev, struct device_attribute *attr, const char *buf, 1427 size_t count) 1428 { 1429 struct i2c_client *client = to_i2c_client(dev); 1430 struct adm1026_data *data = i2c_get_clientdata(client); 1431 int val = simple_strtol(buf, NULL, 10); 1432 int old_enable; 1433 1434 if ((val >= 0) && (val < 3)) { 1435 mutex_lock(&data->update_lock); 1436 old_enable = data->pwm1.enable; 1437 data->pwm1.enable = val; 1438 data->config1 = (data->config1 & ~CFG1_PWM_AFC) 1439 | ((val == 2) ? CFG1_PWM_AFC : 0); 1440 adm1026_write_value(client, ADM1026_REG_CONFIG1, 1441 data->config1); 1442 if (val == 2) { /* apply pwm1_auto_pwm_min to pwm1 */ 1443 data->pwm1.pwm = PWM_TO_REG((data->pwm1.pwm & 0x0f) | 1444 PWM_MIN_TO_REG(data->pwm1.auto_pwm_min)); 1445 adm1026_write_value(client, ADM1026_REG_PWM, 1446 data->pwm1.pwm); 1447 } else if (!((old_enable == 1) && (val == 1))) { 1448 /* set pwm to safe value */ 1449 data->pwm1.pwm = 255; 1450 adm1026_write_value(client, ADM1026_REG_PWM, 1451 data->pwm1.pwm); 1452 } 1453 mutex_unlock(&data->update_lock); 1454 } 1455 return count; 1456 } 1457 1458 /* enable PWM fan control */ 1459 static DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm_reg, set_pwm_reg); 1460 static DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, show_pwm_reg, set_pwm_reg); 1461 static DEVICE_ATTR(pwm3, S_IRUGO | S_IWUSR, show_pwm_reg, set_pwm_reg); 1462 static DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, show_pwm_enable, 1463 set_pwm_enable); 1464 static DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR, show_pwm_enable, 1465 set_pwm_enable); 1466 static DEVICE_ATTR(pwm3_enable, S_IRUGO | S_IWUSR, show_pwm_enable, 1467 set_pwm_enable); 1468 static DEVICE_ATTR(temp1_auto_point1_pwm, S_IRUGO | S_IWUSR, 1469 show_auto_pwm_min, set_auto_pwm_min); 1470 static DEVICE_ATTR(temp2_auto_point1_pwm, S_IRUGO | S_IWUSR, 1471 show_auto_pwm_min, set_auto_pwm_min); 1472 static DEVICE_ATTR(temp3_auto_point1_pwm, S_IRUGO | S_IWUSR, 1473 show_auto_pwm_min, set_auto_pwm_min); 1474 1475 static DEVICE_ATTR(temp1_auto_point2_pwm, S_IRUGO, show_auto_pwm_max, NULL); 1476 static DEVICE_ATTR(temp2_auto_point2_pwm, S_IRUGO, show_auto_pwm_max, NULL); 1477 static DEVICE_ATTR(temp3_auto_point2_pwm, S_IRUGO, show_auto_pwm_max, NULL); 1478 1479 static struct attribute *adm1026_attributes[] = { 1480 &sensor_dev_attr_in0_input.dev_attr.attr, 1481 &sensor_dev_attr_in0_max.dev_attr.attr, 1482 &sensor_dev_attr_in0_min.dev_attr.attr, 1483 &sensor_dev_attr_in0_alarm.dev_attr.attr, 1484 &sensor_dev_attr_in1_input.dev_attr.attr, 1485 &sensor_dev_attr_in1_max.dev_attr.attr, 1486 &sensor_dev_attr_in1_min.dev_attr.attr, 1487 &sensor_dev_attr_in1_alarm.dev_attr.attr, 1488 &sensor_dev_attr_in2_input.dev_attr.attr, 1489 &sensor_dev_attr_in2_max.dev_attr.attr, 1490 &sensor_dev_attr_in2_min.dev_attr.attr, 1491 &sensor_dev_attr_in2_alarm.dev_attr.attr, 1492 &sensor_dev_attr_in3_input.dev_attr.attr, 1493 &sensor_dev_attr_in3_max.dev_attr.attr, 1494 &sensor_dev_attr_in3_min.dev_attr.attr, 1495 &sensor_dev_attr_in3_alarm.dev_attr.attr, 1496 &sensor_dev_attr_in4_input.dev_attr.attr, 1497 &sensor_dev_attr_in4_max.dev_attr.attr, 1498 &sensor_dev_attr_in4_min.dev_attr.attr, 1499 &sensor_dev_attr_in4_alarm.dev_attr.attr, 1500 &sensor_dev_attr_in5_input.dev_attr.attr, 1501 &sensor_dev_attr_in5_max.dev_attr.attr, 1502 &sensor_dev_attr_in5_min.dev_attr.attr, 1503 &sensor_dev_attr_in5_alarm.dev_attr.attr, 1504 &sensor_dev_attr_in6_input.dev_attr.attr, 1505 &sensor_dev_attr_in6_max.dev_attr.attr, 1506 &sensor_dev_attr_in6_min.dev_attr.attr, 1507 &sensor_dev_attr_in6_alarm.dev_attr.attr, 1508 &sensor_dev_attr_in7_input.dev_attr.attr, 1509 &sensor_dev_attr_in7_max.dev_attr.attr, 1510 &sensor_dev_attr_in7_min.dev_attr.attr, 1511 &sensor_dev_attr_in7_alarm.dev_attr.attr, 1512 &sensor_dev_attr_in10_input.dev_attr.attr, 1513 &sensor_dev_attr_in10_max.dev_attr.attr, 1514 &sensor_dev_attr_in10_min.dev_attr.attr, 1515 &sensor_dev_attr_in10_alarm.dev_attr.attr, 1516 &sensor_dev_attr_in11_input.dev_attr.attr, 1517 &sensor_dev_attr_in11_max.dev_attr.attr, 1518 &sensor_dev_attr_in11_min.dev_attr.attr, 1519 &sensor_dev_attr_in11_alarm.dev_attr.attr, 1520 &sensor_dev_attr_in12_input.dev_attr.attr, 1521 &sensor_dev_attr_in12_max.dev_attr.attr, 1522 &sensor_dev_attr_in12_min.dev_attr.attr, 1523 &sensor_dev_attr_in12_alarm.dev_attr.attr, 1524 &sensor_dev_attr_in13_input.dev_attr.attr, 1525 &sensor_dev_attr_in13_max.dev_attr.attr, 1526 &sensor_dev_attr_in13_min.dev_attr.attr, 1527 &sensor_dev_attr_in13_alarm.dev_attr.attr, 1528 &sensor_dev_attr_in14_input.dev_attr.attr, 1529 &sensor_dev_attr_in14_max.dev_attr.attr, 1530 &sensor_dev_attr_in14_min.dev_attr.attr, 1531 &sensor_dev_attr_in14_alarm.dev_attr.attr, 1532 &sensor_dev_attr_in15_input.dev_attr.attr, 1533 &sensor_dev_attr_in15_max.dev_attr.attr, 1534 &sensor_dev_attr_in15_min.dev_attr.attr, 1535 &sensor_dev_attr_in15_alarm.dev_attr.attr, 1536 &sensor_dev_attr_in16_input.dev_attr.attr, 1537 &sensor_dev_attr_in16_max.dev_attr.attr, 1538 &sensor_dev_attr_in16_min.dev_attr.attr, 1539 &sensor_dev_attr_in16_alarm.dev_attr.attr, 1540 &sensor_dev_attr_fan1_input.dev_attr.attr, 1541 &sensor_dev_attr_fan1_div.dev_attr.attr, 1542 &sensor_dev_attr_fan1_min.dev_attr.attr, 1543 &sensor_dev_attr_fan1_alarm.dev_attr.attr, 1544 &sensor_dev_attr_fan2_input.dev_attr.attr, 1545 &sensor_dev_attr_fan2_div.dev_attr.attr, 1546 &sensor_dev_attr_fan2_min.dev_attr.attr, 1547 &sensor_dev_attr_fan2_alarm.dev_attr.attr, 1548 &sensor_dev_attr_fan3_input.dev_attr.attr, 1549 &sensor_dev_attr_fan3_div.dev_attr.attr, 1550 &sensor_dev_attr_fan3_min.dev_attr.attr, 1551 &sensor_dev_attr_fan3_alarm.dev_attr.attr, 1552 &sensor_dev_attr_fan4_input.dev_attr.attr, 1553 &sensor_dev_attr_fan4_div.dev_attr.attr, 1554 &sensor_dev_attr_fan4_min.dev_attr.attr, 1555 &sensor_dev_attr_fan4_alarm.dev_attr.attr, 1556 &sensor_dev_attr_fan5_input.dev_attr.attr, 1557 &sensor_dev_attr_fan5_div.dev_attr.attr, 1558 &sensor_dev_attr_fan5_min.dev_attr.attr, 1559 &sensor_dev_attr_fan5_alarm.dev_attr.attr, 1560 &sensor_dev_attr_fan6_input.dev_attr.attr, 1561 &sensor_dev_attr_fan6_div.dev_attr.attr, 1562 &sensor_dev_attr_fan6_min.dev_attr.attr, 1563 &sensor_dev_attr_fan6_alarm.dev_attr.attr, 1564 &sensor_dev_attr_fan7_input.dev_attr.attr, 1565 &sensor_dev_attr_fan7_div.dev_attr.attr, 1566 &sensor_dev_attr_fan7_min.dev_attr.attr, 1567 &sensor_dev_attr_fan7_alarm.dev_attr.attr, 1568 &sensor_dev_attr_fan8_input.dev_attr.attr, 1569 &sensor_dev_attr_fan8_div.dev_attr.attr, 1570 &sensor_dev_attr_fan8_min.dev_attr.attr, 1571 &sensor_dev_attr_fan8_alarm.dev_attr.attr, 1572 &sensor_dev_attr_temp1_input.dev_attr.attr, 1573 &sensor_dev_attr_temp1_max.dev_attr.attr, 1574 &sensor_dev_attr_temp1_min.dev_attr.attr, 1575 &sensor_dev_attr_temp1_alarm.dev_attr.attr, 1576 &sensor_dev_attr_temp2_input.dev_attr.attr, 1577 &sensor_dev_attr_temp2_max.dev_attr.attr, 1578 &sensor_dev_attr_temp2_min.dev_attr.attr, 1579 &sensor_dev_attr_temp2_alarm.dev_attr.attr, 1580 &sensor_dev_attr_temp1_offset.dev_attr.attr, 1581 &sensor_dev_attr_temp2_offset.dev_attr.attr, 1582 &sensor_dev_attr_temp1_auto_point1_temp.dev_attr.attr, 1583 &sensor_dev_attr_temp2_auto_point1_temp.dev_attr.attr, 1584 &sensor_dev_attr_temp1_auto_point1_temp_hyst.dev_attr.attr, 1585 &sensor_dev_attr_temp2_auto_point1_temp_hyst.dev_attr.attr, 1586 &sensor_dev_attr_temp1_auto_point2_temp.dev_attr.attr, 1587 &sensor_dev_attr_temp2_auto_point2_temp.dev_attr.attr, 1588 &sensor_dev_attr_temp1_crit.dev_attr.attr, 1589 &sensor_dev_attr_temp2_crit.dev_attr.attr, 1590 &dev_attr_temp1_crit_enable.attr, 1591 &dev_attr_temp2_crit_enable.attr, 1592 &dev_attr_cpu0_vid.attr, 1593 &dev_attr_vrm.attr, 1594 &dev_attr_alarms.attr, 1595 &dev_attr_alarm_mask.attr, 1596 &dev_attr_gpio.attr, 1597 &dev_attr_gpio_mask.attr, 1598 &dev_attr_pwm1.attr, 1599 &dev_attr_pwm2.attr, 1600 &dev_attr_pwm3.attr, 1601 &dev_attr_pwm1_enable.attr, 1602 &dev_attr_pwm2_enable.attr, 1603 &dev_attr_pwm3_enable.attr, 1604 &dev_attr_temp1_auto_point1_pwm.attr, 1605 &dev_attr_temp2_auto_point1_pwm.attr, 1606 &dev_attr_temp1_auto_point2_pwm.attr, 1607 &dev_attr_temp2_auto_point2_pwm.attr, 1608 &dev_attr_analog_out.attr, 1609 NULL 1610 }; 1611 1612 static const struct attribute_group adm1026_group = { 1613 .attrs = adm1026_attributes, 1614 }; 1615 1616 static struct attribute *adm1026_attributes_temp3[] = { 1617 &sensor_dev_attr_temp3_input.dev_attr.attr, 1618 &sensor_dev_attr_temp3_max.dev_attr.attr, 1619 &sensor_dev_attr_temp3_min.dev_attr.attr, 1620 &sensor_dev_attr_temp3_alarm.dev_attr.attr, 1621 &sensor_dev_attr_temp3_offset.dev_attr.attr, 1622 &sensor_dev_attr_temp3_auto_point1_temp.dev_attr.attr, 1623 &sensor_dev_attr_temp3_auto_point1_temp_hyst.dev_attr.attr, 1624 &sensor_dev_attr_temp3_auto_point2_temp.dev_attr.attr, 1625 &sensor_dev_attr_temp3_crit.dev_attr.attr, 1626 &dev_attr_temp3_crit_enable.attr, 1627 &dev_attr_temp3_auto_point1_pwm.attr, 1628 &dev_attr_temp3_auto_point2_pwm.attr, 1629 NULL 1630 }; 1631 1632 static const struct attribute_group adm1026_group_temp3 = { 1633 .attrs = adm1026_attributes_temp3, 1634 }; 1635 1636 static struct attribute *adm1026_attributes_in8_9[] = { 1637 &sensor_dev_attr_in8_input.dev_attr.attr, 1638 &sensor_dev_attr_in8_max.dev_attr.attr, 1639 &sensor_dev_attr_in8_min.dev_attr.attr, 1640 &sensor_dev_attr_in8_alarm.dev_attr.attr, 1641 &sensor_dev_attr_in9_input.dev_attr.attr, 1642 &sensor_dev_attr_in9_max.dev_attr.attr, 1643 &sensor_dev_attr_in9_min.dev_attr.attr, 1644 &sensor_dev_attr_in9_alarm.dev_attr.attr, 1645 NULL 1646 }; 1647 1648 static const struct attribute_group adm1026_group_in8_9 = { 1649 .attrs = adm1026_attributes_in8_9, 1650 }; 1651 1652 /* Return 0 if detection is successful, -ENODEV otherwise */ 1653 static int adm1026_detect(struct i2c_client *client, int kind, 1654 struct i2c_board_info *info) 1655 { 1656 struct i2c_adapter *adapter = client->adapter; 1657 int address = client->addr; 1658 int company, verstep; 1659 1660 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { 1661 /* We need to be able to do byte I/O */ 1662 return -ENODEV; 1663 }; 1664 1665 /* Now, we do the remaining detection. */ 1666 1667 company = adm1026_read_value(client, ADM1026_REG_COMPANY); 1668 verstep = adm1026_read_value(client, ADM1026_REG_VERSTEP); 1669 1670 dev_dbg(&adapter->dev, "Detecting device at %d,0x%02x with" 1671 " COMPANY: 0x%02x and VERSTEP: 0x%02x\n", 1672 i2c_adapter_id(client->adapter), client->addr, 1673 company, verstep); 1674 1675 /* If auto-detecting, Determine the chip type. */ 1676 if (kind <= 0) { 1677 dev_dbg(&adapter->dev, "Autodetecting device at %d,0x%02x " 1678 "...\n", i2c_adapter_id(adapter), address); 1679 if (company == ADM1026_COMPANY_ANALOG_DEV 1680 && verstep == ADM1026_VERSTEP_ADM1026) { 1681 kind = adm1026; 1682 } else if (company == ADM1026_COMPANY_ANALOG_DEV 1683 && (verstep & 0xf0) == ADM1026_VERSTEP_GENERIC) { 1684 dev_err(&adapter->dev, ": Unrecognized stepping " 1685 "0x%02x. Defaulting to ADM1026.\n", verstep); 1686 kind = adm1026; 1687 } else if ((verstep & 0xf0) == ADM1026_VERSTEP_GENERIC) { 1688 dev_err(&adapter->dev, ": Found version/stepping " 1689 "0x%02x. Assuming generic ADM1026.\n", 1690 verstep); 1691 kind = any_chip; 1692 } else { 1693 dev_dbg(&adapter->dev, ": Autodetection " 1694 "failed\n"); 1695 /* Not an ADM1026 ... */ 1696 if (kind == 0) { /* User used force=x,y */ 1697 dev_err(&adapter->dev, "Generic ADM1026 not " 1698 "found at %d,0x%02x. Try " 1699 "force_adm1026.\n", 1700 i2c_adapter_id(adapter), address); 1701 } 1702 return -ENODEV; 1703 } 1704 } 1705 strlcpy(info->type, "adm1026", I2C_NAME_SIZE); 1706 1707 return 0; 1708 } 1709 1710 static int adm1026_probe(struct i2c_client *client, 1711 const struct i2c_device_id *id) 1712 { 1713 struct adm1026_data *data; 1714 int err; 1715 1716 data = kzalloc(sizeof(struct adm1026_data), GFP_KERNEL); 1717 if (!data) { 1718 err = -ENOMEM; 1719 goto exit; 1720 } 1721 1722 i2c_set_clientdata(client, data); 1723 mutex_init(&data->update_lock); 1724 1725 /* Set the VRM version */ 1726 data->vrm = vid_which_vrm(); 1727 1728 /* Initialize the ADM1026 chip */ 1729 adm1026_init_client(client); 1730 1731 /* Register sysfs hooks */ 1732 if ((err = sysfs_create_group(&client->dev.kobj, &adm1026_group))) 1733 goto exitfree; 1734 if (data->config1 & CFG1_AIN8_9) 1735 err = sysfs_create_group(&client->dev.kobj, 1736 &adm1026_group_in8_9); 1737 else 1738 err = sysfs_create_group(&client->dev.kobj, 1739 &adm1026_group_temp3); 1740 if (err) 1741 goto exitremove; 1742 1743 data->hwmon_dev = hwmon_device_register(&client->dev); 1744 if (IS_ERR(data->hwmon_dev)) { 1745 err = PTR_ERR(data->hwmon_dev); 1746 goto exitremove; 1747 } 1748 1749 return 0; 1750 1751 /* Error out and cleanup code */ 1752 exitremove: 1753 sysfs_remove_group(&client->dev.kobj, &adm1026_group); 1754 if (data->config1 & CFG1_AIN8_9) 1755 sysfs_remove_group(&client->dev.kobj, &adm1026_group_in8_9); 1756 else 1757 sysfs_remove_group(&client->dev.kobj, &adm1026_group_temp3); 1758 exitfree: 1759 kfree(data); 1760 exit: 1761 return err; 1762 } 1763 1764 static int adm1026_remove(struct i2c_client *client) 1765 { 1766 struct adm1026_data *data = i2c_get_clientdata(client); 1767 hwmon_device_unregister(data->hwmon_dev); 1768 sysfs_remove_group(&client->dev.kobj, &adm1026_group); 1769 if (data->config1 & CFG1_AIN8_9) 1770 sysfs_remove_group(&client->dev.kobj, &adm1026_group_in8_9); 1771 else 1772 sysfs_remove_group(&client->dev.kobj, &adm1026_group_temp3); 1773 kfree(data); 1774 return 0; 1775 } 1776 1777 static int __init sm_adm1026_init(void) 1778 { 1779 return i2c_add_driver(&adm1026_driver); 1780 } 1781 1782 static void __exit sm_adm1026_exit(void) 1783 { 1784 i2c_del_driver(&adm1026_driver); 1785 } 1786 1787 MODULE_LICENSE("GPL"); 1788 MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, " 1789 "Justin Thiessen <jthiessen@penguincomputing.com>"); 1790 MODULE_DESCRIPTION("ADM1026 driver"); 1791 1792 module_init(sm_adm1026_init); 1793 module_exit(sm_adm1026_exit); 1794